Method for feeding a burden to a blast furnace

The present invention proposes a method for feeding a burden to a blast furnace ( 32 ), wherein the method comprises providing a charging device ( 38 ) having at least one material hopper ( 40 ), the material hopper ( 40 ) comprising a hopper chamber ( 42 ), a material inlet aperture for feeding a burden into the hopper chamber ( 40 ), and a material discharge aperture for feeding a burden from the hopper chamber ( 40 ) to the blast furnace ( 32 ); the material inlet aperture having an associated inlet seal valve 44 ) for opening and closing the material inlet aperture and the material discharge aperture having an associated material discharge valve ( 46 ) for opening and closing the material discharge aperture. The method further comprises opening the material inlet aperture and closing the material discharge aperture; feeding a burden into the hopper chamber ( 40 ) through the material inlet aperture; closing the inlet seal valve ( 44 ); pressurizing the hopper chamber ( 40 ) by feeding pressurizing gas into the hopper chamber ( 40 ); and opening the material discharge valve ( 46 ) and feeding the burden from the hopper chamber ( 40 ) to the blast furnace ( 32 ). According to an important aspect of the invention, the method comprises feeding a predetermined amount of pressurized flushing gas through the hopper chamber ( 42 ) before pressurizing the hopper chamber ( 42 ), wherein the flushing gas comprises at least 75% carbon dioxide.

Method for feeding a burden to a blast furnace

The present invention proposes a method for feeding a burden to a blast furnace ( 32 ), wherein the method comprises providing a charging device ( 38 ) having at least one material hopper ( 40 ), the material hopper ( 40 ) comprising a hopper chamber ( 42 ), a material inlet aperture for feeding a burden into the hopper chamber ( 40 ), and a material discharge aperture for feeding a burden from the hopper chamber ( 40 ) to the blast furnace ( 32 ); the material inlet aperture having an associated inlet seal valve 44 ) for opening and closing the material inlet aperture and the material discharge aperture having an associated material discharge valve ( 46 ) for opening and closing the material discharge aperture. The method further comprises opening the material inlet aperture and closing the material discharge aperture; feeding a burden into the hopper chamber ( 40 ) through the material inlet aperture; closing the inlet seal valve ( 44 ); pressurizing the hopper chamber ( 40 ) by feeding pressurizing gas into the hopper chamber ( 40 ); and opening the material discharge valve ( 46 ) and feeding the burden from the hopper chamber ( 40 ) to the blast furnace ( 32 ). According to an important aspect of the invention, the method further comprises subjecting at least a portion of a top gas recovered from the blast furnace ( 32 ) to a recycling process wherein carbon dioxide is removed from the recovered top gas; and feeding at least a portion of the recovered carbon dioxide as pressurizing gas into the hopper chamber ( 40 ) for pressurizing the hopper chamber ( 40 ).

Furnace, refractory installing method, and refractory block

The furnace of the present invention includes a body of a furnace having a cylindrical shape; a steel shell which is arranged at an inside surface of the furnace; and a lining refractory which is arranged at an inside of the steel shell and includes a plurality of refractory blocks, wherein: each of the refractory blocks includes a hot-face end surface which has a hexagonal shape exposed to a middle of the furnace, and a cold-face end surface which has a hexagonal shape larger than the hot-face end surface, the cold-face end surface being arranged at an outer periphery side of the furnace; the refractory blocks are arranged such that each position of the hot-face end surface is positioned along the radial direction of the furnace at a predetermined reference position; and the refractory blocks are arrayed along the circumferential direction of an inside surface of the steel shell, thereby being stacked in a honeycomb manner.

Blast furnace top gas recycling process and corresponding recycling equipment

The invention mainly relates to a process for recycling blast furnace gas in which at least one portion of the gases resulting from the blast furnace undergo a CO 2 purification step so as to create a CO-rich gas which is reinjected at a first top injection point located above the base of the blast furnace at a temperature between 700° C. and 1000° C. through a top injection line, and at a second bottom injection point at the base of the blast furnace at a temperature between 1000° C. and 1300° C. through a bottom injection line, in which the gases from the bottom and top injection lines are heated by means of heaters from which the gases emerge at a temperature between 1000° C. and 1300° C. The process of the invention is essentially characterized in that a portion of the CO-rich gas ( 18 ) exiting the purification step is directly introduced into the top injection line ( 21 ) via a cold gas injection line ( 35 ) in order to obtain a temperature between 700° C. and 1000° C. at the first top injection point ( 20 ), and in that the gas flows through the bottom injection point ( 22 ) and top injection point ( 20 ) are controlled upstream of the system of heaters ( 30,33; 45 ). The invention also relates to a device that implements the aforementioned process.

STAVE AND BRICK CONSTRUCTIONS HAVING REFRACTORY WEAR MONITORS AND IN PROCESS THERMOCOUPLES

A stave/brick construction, comprising: a stave having a plurality of ribs and a plurality of channels, wherein a front face of the stave defines a first opening into each of the channels; a plurality of bricks wherein each brick is insertable into one of the plurality of channels via its first opening to a position, upon rotation of the brick, partially disposed in the one channel such that one or more portions of the brick at least partially engage one or more surfaces of the one channel and/or of a first rib of the plurality of ribs whereby the brick is locked against removal from the one channel through its first opening via linear movement without first being rotated; and one or more wear monitors and/or thermocouples, wherein each wear monitor and thermocouple is disposed through or adjacent to the stave and/or one or more of the bricks. 1. A stave/brick construction , comprising:a stave having a plurality of ribs and a plurality of channels, wherein a front face of the stave defines a first opening into each of the channels;a plurality of bricks wherein each brick is insertable into one of the plurality of channels via its first opening to a position, upon rotation of the brick, partially disposed in the one channel such that one or more portions of the brick at least partially engage one or more surfaces of the one channel and/or of a first rib of the plurality of ribs whereby the brick is locked against removal from the one channel through its first opening via linear movement without first being rotated; andone or more wear monitors, wherein each wear monitor is disposed through or adjacent to the stave and/or one or more of the bricks.2. The stave/brick construction of wherein each of the wear monitors comprises a metallic conductor coax and an outer metallic sheath separated by refractory material.3. The stave/brick construction of wherein each of the wear monitors may be read using a time-domain reflectometer and/or time-domain reflectometry.4. The ...

Process for operating a blast furnace installation with top gas recycling

Blast furnace installation having top gas recycling and process for operating same, in which the oxygen concentration of the oxidizing gas injected into the blast furnace is regulated as a function of the flow rate of the recycled top gas

Process for regulating joule value of offgases from plants for pig iron production or of synthesis gas

In a plant having integrated CO 2 removal, for pig iron production or synthesizing gas, at least part of the offgas or synthesis gas is discharged as export gas from the plant, optionally collected in an export gas container and subsequently thermally utilized in a gas turbine. The offgas from the gas turbine is fed to a waste heat boiler for generation of steam. To reduce the addition of high-grade fuel gases, at least part of the tailgas from the CO 2 removal plant is mixed into the export gas upstream of the gas turbine as a function of the joule value of the export gas after addition of the tailgas. The proportion of tailgas is increased when the joule value of the export gas goes above a predefined maximum joule value and the proportion of tailgas is reduced when the joule value of the export gas drops below a predefined minimum joule value.

BLAST FURNACE AND METHOD FOR OPERATING A BLAST FURNACE

A process for processing metal ore includes: reducing a metal ore, particularly a metallic oxide, in a blast furnace shaft; producing furnace gas containing CO, in the blast furnace shaft; discharging the furnace gas from the blast furnace shaft; directing at least a portion of the furnace gas directly or indirectly into a CO-converter; and converting the COcontained in the furnace gas into an aerosol consisting of a carrier gas and C-particles in the CO-converter in the presence of a stoichiometric surplus of C; directing at least a first portion of the aerosol from the CO-converter into the blast furnace shaft; and introducing HO into the blast furnace shaft. By virtue of the reaction C+HO→CO+2H, nascent hydrogen is produced in the blast furnace which causes rapid reduction of the metal ore. The speed of reduction of the metal ore is thus increased, and it is possible to increase either the throughput capacity of the blast furnace or to reduce the size of the blast furnace. An aerosol in the form of a fluid is easily introducible into the blast furnace shaft. 142-. (canceled)43. A method for processing metal ore comprising the following steps:{'b': '2', 'reducing a metal ore in a blast furnace shaft ();'}{'sub': '2', 'b': '2', 'producing furnace gas containing COin the blast furnace shaft ();'}{'b': '2', 'discharging the furnace gas from the blast furnace shaft ();'}{'sub': 2', '2', '2, 'b': 4', '4, 'directing the furnace gas directly or indirectly into a CO-converter () and converting the COcontained in the furnace gas into an aerosol consisting of a carrier gas and C-particles in the CO-converter () in the presence of a stoichiometric surplus of C;'}{'sub': '2', 'b': 4', '2, 'directing a first portion of the aerosol from the CO-converter () into the blast furnace shaft ();'}{'sub': '2', 'b': '4', 'wherein a second portion of the aerosol from the CO-converter () is fed to a further processing process; or'}{'sub': 2', '2, 'b': '4', 'wherein the second portion of ...

METHOD FOR OPERATING A TOP GAS RECYCLING BLAST FURNACE INSTALLATION

Method of operating a blast furnace installation comprising a top gas recycle blast furnace and hot stones, whereby a hydrocarbon containing fuel is transformed into a transformed gas stream consisting mainly of CO and Hand substantially devoid of hydrocarbon, whereby a low-heating-value gaseous fuel is generated comprising a mixture of said transformed gas with a portion of the CO-rich tail gas obtained by decarbonatation of the blast furnace gas, and whereby said low-heating-value fuel is used to heat the hot furnace gas is heated before being injected into the blast-furnace. 113-. (canceled)14. A method of operating a blast furnace installation comprising a top gas recycle blast furnace generating blast furnace gas , comprising the steps of:{'sub': 2', '2, 'decarbonating the blast furnace gas so as to obtain a CO-enriched rich tail gas stream and a decarbonated blast furnace gas stream containing not more than 3% vol CO;'}{'sub': '2', 'transforming a hydrocarbon-containing gaseous fuel not generated by the blast furnace to generate a transformed gas stream containing at least 70% vol of CO and Hin total and at most 7% vol of hydrocarbon;'}{'sup': '3', 'producing a low-heating-value gaseous fuel having a heating value of from 2.8 to 7.0 MJ/Nmand containing (i) a portion of the tail gas stream and (ii) at least a first portion of the transformed gas stream and using said low-heating-value gaseous fuel for heating hot stoves;'}heating at least 70% vol of the decarbonated blast furnace gas stream in the hot stoves to a temperature between 700° C. and 1300° C. to generate heated decarbonated blast furnace gas; andinjecting the heated decarbonated blast furnace gas into the blast furnace.15. The method of claim 14 , wherein the hydrocarbon-containing gaseous fuel contains natural gas and/or coke oven gas.16. The method of claim 14 , wherein partial combustion of the hydrocarbon-containing gaseous fuel is used to generate the transformed gas stream.17. The method of ...

SHAFT FURANCE CONSTRUCTION METHOD AND ASSEMBLY

A method of constructing a shaft furnace is provided, as well as an assembly and a fixation structure therefor. The method comprises the steps of providing on a first position a furnace segment comprising a ring wall extending along a central axis, and transporting the segment to a second position and operably attaching the segment there to one or more further blast furnace portions. The method further comprises that during said transporting the segment to the second position the segment comprises at least one fixation structure comprising a plurality of tensioned tensile members attached to the wall determining a shape of the segment. 1. A method of constructing a shaft furnace , comprising:providing on a first position a shaft furnace segment comprising a ring wall extending along a central axis, andtransporting the segment to a second position and operably attaching the segment there to one or more further shaft furnace portions;wherein during said transporting the segment to the second position the segment comprises at least one fixation structure comprising one or more tensioned tensile members on an inside of the ring wall, attached to the wall determining a shape of the segment.2. The method of claim 1 , wherein the fixation structure comprises a hub claim 1 , at least some of the tensile members being attached to the hub.3. The method of claim 1 , wherein at least some tensile members are attached to one or more sacrificial wall portions in the wall claim 1 ,wherein the method comprises after said transporting the segment to the second position removing a sacrificial wall portion from the wall thus providing an opening in the wall and attaching another element in the opening.4. The method of claim 3 , wherein the another element comprises a cooling element.5. The method of claim 1 , comprising providing the segment in the first position with lining material and transporting the segment to the second position together with the lining material.6. The method of ...

Cooling plate for metallurgical furnace

A cooling plate for a metallurgical furnace including a body with a front face and an opposite rear face, the body having at least one cooling channel therein having an opening in the rear face and a coolant feed pipe connected to the rear face of the cooling panel and is in fluid communication with the cooling channel where in use, the front face is turned towards a furnace interior, and at least one emergency cooling tube is arranged within the cooling channel, the emergency cooling tube having a cross-section smaller than a cross-section of the cooling channel, the emergency cooling tube has an end section with connection means for connecting an emergency feed pipe thereto, and in an emergency operation, the emergency cooling tube is physically connected to an emergency feed pipe via the connection means; while, in a normal operation, the connection means of the emergency cooling tube is physically disconnected from the emergency feed pipe. The invention also concerns the use of such a cooling plate.

Blast furnace operation method

A method is provided for operating a blast furnace by blowing at least a solid reducing material and a combustible gas into the furnace through tuyeres with a lance inserted into a blowpipe, wherein a tube-bundle type lance obtained by bundling a plurality of blowing tubes is used and when only a solid reducing material or two kinds of a solid reducing material and a combustible gas or three kinds of a solid reducing material, a combustible gas and a gaseous reducing material is simultaneously blown into an inside of the blast furnace through a tube for blowing the solid reducing material, a tube for blowing the combustible gas and a tube for blowing the gaseous reducing material in the tube-bundle type lance, two or more tube-bundle type lances are inserted into the blowpipe to approximate their front ends to each other and blowing is performed so that the respective blowout streams interfere with each other in the blowpipe.

METHOD FOR OPERATING A BLAST FURNACE

A method of operating a blast furnace comprising two or more lances that inject reducing agents from a tuyere including injecting a solid reducing agent and a flammable reducing agent from different lances; and arranging a position of an end of the lance that injects the flammable reducing agent closer to a near side in a injecting direction by more than 0 to 50 mm than a position of an end of the lance that injects the solid reducing agent. 19.-. (canceled)10. A method of operating a blast furnace comprising:providing two or more lances that inject reducing agents from a tuyere;injecting a solid reducing agent and a flammable reducing agent from different lances; andarranging a position of an end of the lance that injects the flammable reducing agent closer to a near side in a injecting direction by more than 0 to 50 mm than a position of an end of the lance that injects the solid reducing agent.11. The method according to claim 10 , wherein a position of the end of the lance that injects the flammable reducing agent is arranged closer to a near side in an injecting direction by 10 to 30 mm than a position of the end of the lance that injects the solid reducing agent.12. The method according to claim 10 , wherein an outlet flow velocity at the lance that injects the solid reducing agent and an outlet flow velocity at the lance that injects the flammable reducing agent are 20 to 120 m/sec.13. The method according to claim 10 , wherein the lance that injects the solid reducing agent is a double wall lance claim 10 , the solid reducing agent is injected from an inner tube of the double wall lance claim 10 , a combustion-supporting gas is injected from an outer tube of the double wall lance claim 10 , and the flammable reducing agent is injected from a single wall lance.14. The method according to claim 13 , wherein an outlet flow velocity at the outer tube that injects the combustion-supporting gas of the double wall lance and an outlet flow velocity at the single ...

Methods for Coal Combustion Product (CCP) Recovery and Related Products

Methods of recovering coal combustion products (CCPs) from coal combination byproducts are disclosed. The methods include compiling coal combustion byproducts (e.g., lignite coal and/or bituminous coal), grinding the coal combustion byproducts to form ground coal combustion byproducts with a maximum particle size of 40 microns, and separating the ground coal combustion byproducts to yield CCPs using an electrostatic precipitator. The following CCPs can be separated from the coal combination byproducts using the presently disclosed methods: fly ash, bottom ash, scrubber materials, and raw coal. 1. A method of recovering coal combustion products (CCPs) from coal combination byproducts , the method comprising:compiling coal combustion byproducts;grinding the coal combustion byproducts to form ground coal combustion byproducts with a maximum particle size of 40 microns; andseparating the ground coal combustion byproducts to yield CCPs using an electrostatic precipitator.2. The method of claim 1 , wherein the coal combustion byproducts include calcium sulfite claim 1 , calcium sulfate claim 1 , and pyrites.3. The method of claim 1 , wherein the coal combustion byproducts are selected from the group consisting of: lignite coal and bituminous coal.4. The method of further comprising removing moisture from the coal combustion byproducts to achieve a moisture content of between 5% and 15%.5. The method of claim 1 , wherein separating the ground coal combustion byproducts using an electrostatic precipitator includes separating sulfur and silica compounds from ground-down bottom ash and fly ash.6. The method of claim 1 , wherein the following CCPs are separated from the coal combination byproducts: fly ash claim 1 , bottom ash claim 1 , scrubber materials claim 1 , and raw coal.7. The method of claim 6 , wherein the scrubber materials include calcium sulfite and calcium sulfate.8. The method of claim 6 , wherein the bottom ash contains pyrites.9. A method comprising:obtaining ...

BLAST FURNACE WITH TOP-GAS RECYCLE

A blast furnace where coke is combusted with oxygen, instead of air, and where a top gas comprising CO, CO, H, and without excess nitrogen is withdrawn from the upper part of the blast furnace, cleaned of dust, the H/CO volume ratio adjusted to between 1.5 to 4.0 in a water shift reactor, water and COare removed (increasing its reduction potential), heated to a temperature above 850° C. and fed back to the blast furnace above where iron starts melting (thereby increasing the amount of metallic iron reaching the dead-man zone and decreasing the amount of coke used for reduction). Also carbon deposit problems caused by heating the CO-containing recycled gas are minimized by on-line cleaning of the heater tubes with steam without significantly affecting the reduction potential of the recycled reducing gas. 1. Method of producing molten iron in a blast furnace to which iron ore , metallurgical coke and fluxes are charged at its upper part and molten iron and slag are tapped from its lower part , said blast furnace having a plurality of tuyeres in its lower part for introducing an oxygen-containing gas for generating heat and reducing gases by combustion of the coke within said furnace characterized by:feeding oxygen instead of air through the tuyeres of said blast furnace;{'sub': 2', '2, 'withdrawing a top gas stream comprising CO, COand H;'}cleaning the top gas stream of dust and{'sub': '2', 'adjusting the volume ratio of H/CO to the range between 1.5 to 4 by reaction with water;'}cooling said top gas stream for removing water therefrom;{'sub': 2', '2, 'removing COfrom a portion of said cooled top gas stream forming a CO-lean reducing gas stream,'}heating said reducing gas stream to a temperature above 850° C., andfeeding said hot gas stream to said blast furnace contributing to the reduction of said iron ore to metallic iron.2. Method of producing molten iron according to claim 1 , further characterized by reacting said cleaned top gas in a catalytic reactor with ...

NOZZLE FOR SPRAYING AN INORGANIC MASS

The invention pertains to a nozzle for spraying and inorganic mass with the following characteristics: a flow channel () that extends from a first end () with an essentially circular cross section to a second end () with an essentially slot-like cross section. The respective minimum cross section of the flow channel () changes from a circular to a reniform and ultimately to a slot-like cross section between the first end () and the second end (), and the flow channel extends between the first end () and the second end () in such a way that an axis (x) extending perpendicular to the circular cross section on the first end () and through its center of area is spaced apart from the center of area of at least 50% of the reniform cross sections of the flow channel (). 1. A nozzle for spraying an inorganic mass with the following characteristics:{'b': '10', 'a flow channel () that extends from'}{'b': '12', 'a first end () with an essentially circular cross section to'}{'b': '14', 'a second end () with an essentially slot-like cross section,'}{'b': 10', '12', '14, 'the respective minimal cross section of the flow channel () changes from a circular to a reniform and ultimately to a slot-like cross section between the first end () and the second end (), wherein'}each reniform cross section features at least one concavely and one convexly curved circumferential segment.212141210. The nozzle according to claim 1 , in which the flow channel extends between the first end () and the second end () in such a way that an axis (x) extending perpendicular to the circular cross section at the first end () and through its center of area claim 1 , is spaced apart from the center of area of at least 30% of the reniform cross sections of the flow channel ().310141012. The nozzle according to claim 1 , in which the cross section of the flow channel () at the second end () is no more than 20% smaller than the cross section of the flow channel () at the first end ().4121014. The nozzle ...

BLAST FURNACE AND METHOD FOR OPERATING A BLAST FURNACE

The present invention is directed to a blast furnace and a method for operating a blast furnace which are able to reduce the COproduction and reduce the amount of applied additives and heating material when compared to presently known metallurgical plants. This problem is solved by a process for metal production of metal ores comprising the following steps: reducing a metal ore, particularly a metal oxide; producing furnace gas containing COin a blast furnace shaft; discharging said furnace gas from the blast furnace shaft; directing at least a portion of the furnace gas directly or indirectly into a COconverter and reducing the COcontained in the furnace gas into CO in the COconverter, directing at least a portion of the CO from the COconverter into the blast furnace shaft. Besides solving the above mentioned problem, the method also produces CO as a gaseous reduction agent which may be easily introduced into the blast furnace shaft. 1. A method for processing metal ore comprising the following steps:reducing a metal ore;{'sub': '2', 'b': '2', 'producing furnace gas containing COin a blast furnace shaft ();'}{'b': '2', 'discharging said furnace gas from the blast furnace shaft ();'}{'sub': 2', '2', '2, 'b': 4', '4, 'directing at least a portion of the furnace gas directly or indirectly into a COconverter () and reducing the COcontained in the furnace gas to CO in the COconverter ();'}{'sub': '2', 'b': 4', '2, 'directing a first portion of the CO from the COconverter () into the blast furnace shaft ();'}{'sub': '2', 'b': '4', 'claim-text': an oxidation process in a fuel cell;', 'a combustion process in a gas engine', 'a combustion process in a gas turbine;', [{'br': None, 'sub': 2', '2', '5', '2, '6CO+3HO→CHOH+4CO;\u2003\u2003a)'}, {'br': None, 'sub': 2', '2', '2', '5', '2, '6H+2CO→CHOH+3HO;\u2003\u2003b)'}, {'br': None, 'sub': 2', '2', '5', '2, '2CO+4H→CHOH+HO; and\u2003\u2003c)'}], 'a biological conversion process in a bio converter carried out using microbes or ...

Preheating oxygen for injection into blast furnaces

A side stream of hot blast air is used to preheat oxygen at a heat exchanger. The resultant hot oxygen is injected into a tuyere of a blast furnace with pulverized or granular coal. The cooled side stream may be recombined with the hot blast air for injection into the tuyere, fed to the stove as part of the cold blast air, or fed to stove for combustion with blast furnace gas.

MANUFACTURING PROCESS CONTROL WITH DEEP LEARNING-BASED PREDICTIVE MODEL FOR HOT METAL TEMPERATURE OF BLAST FURNACE

A blast furnace control system may include a hardware processor that generates a deep learning based predictive model for forecasting hot metal temperature, where the actual measured HMT data is only available sparsely, and for example, measured at irregular interval of time. HMT data points may be imputed by interpolating the HMT measurement data. HMT gradients are computed and a model is generated to learn a relationship between state variables and the HTM gradients. HMT may be forecasted for a time point, in which no measured HMT data is available. The forecasted HMT may be transmitted to a controller coupled to a blast furnace, to trigger a control action to control a manufacturing process occurring in the blast furnace. 1. A blast furnace control system , comprising:a storage device storing a database of manufacturing process data associated with a blast furnace;a hardware processor coupled to the storage device and operable to receive the manufacturing process data, the manufacturing process data comprising state variables and control variables used in operating the blast furnace, the state variables comprising at least a hot metal temperature (HMT) and other state variables, wherein the manufacturing process data comprises a plurality of measured HMT at different time points, of a product continuously produced in the blast furnace, the hardware processor further operable to:generate imputed HMT by interpolating the plurality of measured HMT;generate HMT gradients over time at least based on the imputed HMT;define a causal relationship between the other state variables and the HMT gradients, the relationship generated as a neural network model;train the neural network model using as training data, a weighted combination of the imputed HMT up to last known measured HMT and predicted HMT up to the last known measured HMT;run the trained neural network model to predict a current point in time value for the HMT, in which no measured HMT for the current point in ...

MANUFACTURING PROCESS CONTROL WITH DEEP LEARNING-BASED PREDICTIVE MODEL FOR HOT METAL TEMPERATURE OF BLAST FURNACE

A blast furnace control system may include a hardware processor that generates a deep learning based predictive model for forecasting hot metal temperature, where the actual measured HMT data is only available sparsely, and for example, measured at irregular interval of time. HMT data points may be imputed by interpolating the HMT measurement data. HMT gradients are computed and a model is generated to learn a relationship between state variables and the HTM gradients. HMT may be forecasted for a time point, in which no measured HMT data is available. The forecasted HMT may be transmitted to a controller coupled to a blast furnace, to trigger a control action to control a manufacturing process occurring in the blast furnace. 1. A method of controlling a manufacturing process in a blast furnace , the method executed by at least one hardware processor , the method comprising:receiving manufacturing process data associated with a blast furnace, the manufacturing process data comprising state variables and control variables used in operating the blast furnace, the state variables comprising at least a hot metal temperature (HMT) and other state variables, wherein the manufacturing process data comprises a plurality of measured HMT at different time points, of a product continuously produced in the blast furnace;generating imputed HMT by interpolating the measured HMT;generating HMT gradients based on at least the imputed HMT;defining a causal relationship between the other state variables and the HMT gradients, the relationship generated as a neural network model;training the neural network model using as training data, a weighted combination of the imputed HMT up to a last known measured HMT and predicted HMT up to the last known measured HMT;running the trained neural network model to predict a current point in time value for the HMT, in which no measured HMT for the current point in time is available, wherein the trained neural network model predicts the HMT ...

AUTOMATED CONTROL OF CIRCUMFERENTIAL VARIABILITY OF BLAST FURNACE

Controlling circumferential variability in a blast furnace may include generating a predictive model that sets up a relationship between a standard deviation of a selected state variable, state variables and one or more control variables in blast furnace operation for predicting the standard deviation. A number of circumferential sections of the blast furnace is defined, and the predictive model associated with the selected state variable for each of the circumferential sections is trained based on process data of the blast furnace. A plurality trained predictive models is generated associated with different circumferential sections and different selected state variables. One or more future control variable set points that minimize a sum of the plurality of predictive models, is determined. One or more future control variable set points is transmitted to a control system to control the blast furnace operation. 19.-. (canceled)10. A computer readable storage medium storing a program of instructions executable by a machine to perform a method of controlling circumferential variability in a blast furnace , the method comprising:generating a predictive model that sets up a relationship between a standard deviation of a selected state variable, state variables and one or more control variables in blast furnace operation for predicting the standard deviation;defining a number of circumferential sections of the blast furnace;receiving process data associated with the blast furnace operation;training the predictive model associated with the selected state variable for each of the circumferential sections based on the process data, wherein a plurality trained predictive models is generated associated with different circumferential sections and different selected state variables, the different selected state variables comprising temperature and pressure;determining one or more future control variable set points that minimize a sum of the plurality of predictive models that ...

AUTOMATED CONTROL OF CIRCUMFERENTIAL VARIABILITY OF BLAST FURNACE

Controlling circumferential variability in a blast furnace may include generating a predictive model that sets up a relationship between a standard deviation of a selected state variable, state variables and one or more control variables in blast furnace operation for predicting the standard deviation. A number of circumferential sections of the blast furnace is defined, and the predictive model associated with the selected state variable for each of the circumferential sections is trained based on process data of the blast furnace. A plurality trained predictive models is generated associated with different circumferential sections and different selected state variables. One or more future control variable set points that minimize a sum of the plurality of predictive models, is determined. One or more future control variable set points is transmitted to a control system to control the blast furnace operation. 1. A method of controlling circumferential variability in a blast furnace , the method performed by at least one hardware processor , the method comprising:generating a predictive model that sets up a relationship between a standard deviation of a selected state variable, state variables and one or more control variables in blast furnace operation for predicting the standard deviation;defining a number of circumferential sections of the blast furnace;receiving process data associated with the blast furnace operation;training the predictive model associated with the selected state variable for each of the circumferential sections based on the process data, wherein a plurality trained predictive models is generated associated with different circumferential sections and different selected state variables, the different selected state variables comprising temperature and pressure;determining one or more future control variable set points that minimize a sum of the plurality of predictive models that are trained; andtransmitting the one or more future control ...

CHROMIA-BASED BRICK

A chromia-based brick, having chromia as a main component, includes: 70 to 95 mass % of CrO; 0.5 to 15 mass % of ZrO; 0.4 to 4.0 mass % of POderived from phosphate added as raw material; 10 or lower mass % of AlO; and a sintering aid component and unavoidable components. 1. A chromia-based brick , having chromia as a main component , comprising:{'sub': 2', '3, '70 to 95 mass % of CrO;'}{'sub': '2', '0.5 to 15 mass % of ZrO;'}{'sub': 2', '5, '0.4 to 4.0 mass % of POderived from phosphate added as raw material;'}{'sub': 2', '3, '10 or lower mass % of AlO; and'}a sintering aid component and unavoidable components.2. A chromia-based brick , having chromia as a main component , comprising:{'sub': 2', '3, '75 to 95 mass % of CrO;'}{'sub': '2', '0.5 to 14 mass % of ZrO;'}{'sub': 2', '5, '1.5 to 3.0 mass % of POderived from phosphate added as raw material;'}{'sub': 2', '3, '8 or lower mass % of AlO; and'}a sintering aid component and unavoidable components.3. The chromia-based brick according to claim 2 , wherein the phosphate includes aluminum phosphate.4. The chromia-based brick according to claim 3 , wherein one or two selected from a group consisting of: zirconia-mullite having a grain diameter of 0.1 to 3 mm; and baddeleyite having a grain diameter of less than or equal to 0.074 mm claim 3 , are used as the raw material of ZrO.5. The chromia-based brick according to claim 4 , wherein a porosity is 10 to 20%.6. The chromia-based brick according to claim 5 , wherein said chromia-based brick is used in a region claim 5 , in which corrosion resistance is requested claim 5 , in a waste-melting furnace claim 5 , pig-iron equipment claim 5 , gasification furnace for organic substance claim 5 , and glass-melting furnace.7. A chromia-based brick claim 5 , having chromia as a main component claim 5 , comprising:{'sub': 2', '3, '88 to 98 mass % of CrO; and'}{'sub': 2', '5, '1.5 to 3.0 mass % of POderived from phosphate added as the raw material;'}{'sub': 2', '3, '10 or lower mass ...

PLANT COMPLEX FOR PIG IRON PRODUCTION AND A METHOD FOR OPERATING THE PLANT COMPLEX

A plant complex for pig iron production may include a furnace and a furnace gas conduit system for a furnace gas quantity stream that comprises nitrogen, carbon monoxide, and carbon dioxide. The plant complex may also include a hydrogen source, an Hgas conduit system for a hydrogen-containing gas quantity stream emitted from the hydrogen source, a mixing apparatus for establishing a mixed gas formed from the furnace gas stream and the hydrogen-containing gas quantity stream. The mixing apparatus may be connected to the furnace gas conduit system and to the Hgas conduit system. The mixed gas established may have a stoichiometric mixing quotient formed from a dividend with a difference value between molar amounts of hydrogen as minuend and carbon dioxide as subtrahend and of a divisor with a sum value of molar amounts of carbon monoxide and carbon dioxide. The plant complex may also include a mixed gas conduit system and a chemical plant connected to the mixed gas conduit system. 117.-. (canceled)18. A plant complex for pig iron production , the plant comprising:a furnace for pig iron production;a furnace gas conduit system for a furnace gas quantity stream obtained in the pig iron production, wherein the furnace gas quantity stream comprises carbon monoxide and carbon dioxide;a hydrogen source;{'sub': '2', 'an Hgas conduit system for a hydrogen-containing gas quantity stream emitted from the hydrogen source;'}{'sub': '2', 'a mixing apparatus for establishing a mixed gas formed from the furnace gas quantity stream and the hydrogen-containing gas quantity stream, wherein the mixing apparatus is connected to the furnace gas conduit system and to the Hgas conduit system, wherein the mixed gas comprises a stoichiometric mixing quotient formed from a dividend with a difference value between molar amounts of hydrogen as minuend and carbon dioxide as subtrahend and of a divisor with a sum value of molar amounts of carbon monoxide and carbon dioxide;'}a mixed gas conduit ...

METHOD FOR FABRICATING DILUTION HOLES IN CERAMIC MATRIX COMPOSITE COMBUSTOR PANELS

A heat shield panel for use in a combustor of a gas turbine engine is disclosed. In various embodiments, the heat shield panel includes an inner base layer, an outer base layer, and a grommet having a flange disposed between the inner base layer and the outer base layer. 1. A heat shield panel for use in a combustor of a gas turbine engine , comprising:an inner base layer;an outer base layer; anda grommet having a flange disposed between the inner base layer and the outer base layer.2. The heat shield panel of claim 1 , wherein the grommet includes an orifice that defines a centerline and a boss portion disposed about the centerline.3. The heat shield panel of claim 2 , wherein the flange extends outward of the centerline from an outer surface of the boss portion.4. The heat shield panel of claim 2 , wherein the boss portion is disposed radially about the centerline and wherein the flange extends radially outward of the centerline from a radially outer surface of the boss portion.5. The heat shield panel of claim 3 , wherein the flange includes an inner face configured for contact with the inner base layer and an outer face configured for contact with the outer base layer.6. The heat shield panel of claim 5 , wherein the inner base layer includes an inner base layer aperture configured to receive an inner boss wall of the radially outer surface of the boss portion.7. The heat shield panel of claim 6 , wherein the outer base layer includes an outer base layer aperture configured to receive an outer boss wall of the radially outer surface of the boss portion.8. The heat shield panel of claim 7 , wherein the flange defines an inner face radial extent and wherein an inner face surface normal is substantially parallel to the centerline from proximate the radially outer surface of the boss portion to proximate the inner face radial extent.9. The heat shield panel of claim 7 , wherein the flange defines an outer face radial extent and wherein an outer face surface normal ...

BRICK LINING FORMING METHOD

It is intended to provide a method for forming a brick lining to construct a sidewall of a kiln/furnace, while improving efficiency of brick lining forming work without causing any increase in manufacturing cost of bricks to be used. The brick lining forming method comprises stacking a plurality of tiers of bricks, respectively, on a plurality of tier regions of an inner surface of a hollow approximately cylindrical-shaped peripheral portion of a kiln/furnace to construct a side wall of the kiln/furnace, wherein two or more of the plurality of tier regions are different in terms of pre-lining radius, wherein only bricks identical in terms of taper angle and height dimension are used, except for an adjustment brick, in each of the two or more tier regions different in terms of the pre-lining radius, wherein bricks identical in terms of the taper angle, the height dimension and length dimension, and different in terms of back face width, are used in at least a part of each of the two or more tier regions. 1. A brick lining forming method comprising stacking a plurality of tiers of bricks , respectively , on a plurality of tier regions of an inner surface of a hollow approximately cylindrical-shaped peripheral portion of a kiln or furnace to construct a side wall of the kiln or furnace , wherein two or more of the plurality of tier regions are different in terms of pre-lining radius ,wherein, assuming that, on a basis of a posture of each of the bricks in a state in which the kiln or furnace is lined with the bricks: two circumferentially opposed side faces of the brick are defined as circumferential side faces; an angle between the circumferential side faces is defined as a taper angle; and a circumferential dimension of a back face of the brick is defined as a back face width, only bricks identical in terms of the taper angle and height dimension are used, except for an adjustment brick, in each of the two or more tier regions different in terms of the pre-lining ...

Capture and recovery system for gases and particles

A system for capturing and recovering polluting gases and particles by means of self-priming pumping caused by induced flow pumps which are part of a close circuit of steam under pressure, thereby allowing a high efficiency in the decontamination and cleaning of the gas being extracted from environments having a high concentration of gases and particles, thus achieving low energy requirements and reintegrating the clean air to the atmosphere, also recovering and recycling the condensed steam resource which has been used in the process.

METHOD AND SYSTEM FOR OPERATING A BLAST FURNACE WITH TOP-GAS RECYCLE AND A FIRED TUBULAR HEATER

A blast furnace system is used wherein the coke rate is decreased by recycling upgraded top gas from the furnace back into its shaft section (which upgraded top gas is heated in a tubular heater prior to being recycled). The top gas, comprising CO, COand H, is withdrawn from the upper part of the blast furnace; cooled and cleaned of dust, water, and COfor increasing its reduction potential and is heated to a temperature above 850° C. before being recycled thus defining a first gas flow path used during normal operation of the blast furnace. Uniquely, a second gas flow path for continued circulation of top gas selectively through the heater and a cooler during operation interruptions of the blast furnace allows time for gradual controlled cool down of the heater in a manner to avoid heat-shock damage to the tubular heater. 1. A blast furnace system for producing molten iron in a blast furnace to which iron ore , metallurgical coke and fluxes are charged at its upper part and molten iron and slag are tapped from its lower part , said blast furnace having a plurality of tuyeres in its lower part for introducing an oxygen-containing gas for generating heat and reducing gases by combustion of the coke within said furnace; first cooling means for washing and cooling said top gas stream and removing dust and water therefrom being connected to receive a hot top gas stream from the upper part of said blast furnace;', 'pump means for increasing the pressure of the resulting cooled top gas stream to enable recycling of said top gas to the blast furnace;', {'sub': 2', '2, 'means for removing COfrom at least a portion of said cooled top gas stream forming a CO-lean reducing gas stream,'}, {'sub': '2', 'a tubular gas heater for heating said CO-lean reducing gas stream to a temperature above 850° C., and'}, 'first piping means connecting the foregoing components of said blast furnace system defining a first gas circulation gas path through said gas heater to recycle said hot ...

SMELTING PROCESS AND APPARATUS

A smelting vessel includes a plurality of heat pipes () positioned in a refractory lining of at least a part of the hearth () for cooling at least a part of the refractory lining. At least one of the heat pipes includes (a) a liquid phase of a heat transfer fluid, typically water, in a lower section of the heat pipe and (b) a vapor phase of the heat transfer fluid, typically steam, in an upper section of the heat pipe. The heat pipe also includes a vent to allow vapour phase to escape from the heat pipe to reduce the pressure or the temperature within the heat pipe when the vapour pressure or the temperature in the heat pipe exceeds a predetermined threshold pressure or temperature. 1. A smelting vessel for producing molten metal including a refractory lined hearth that in use is in contact with molten slag or molten metal in the vessel , with the hearth including a plurality of heat pipes positioned in a refractory lining of at least a part of the hearth for cooling at least a part of the refractory lining , with at least one of the heat pipes including:a liquid phase of a heat transfer fluid, typically water, in a lower section of the heat pipe; a vapor phase of the heat transfer fluid, typically steam, in an upper section of the heat pipe; and 'an open end, that is inside the heat pipe, and a closed end, that is outside the heat pipe, wherein, the closed end of the snorkel opens when the vapour pressure or the temperature in the heat pipe exceeds a predetermined threshold pressure or temperature, to allow the vapour phase to escape from the heat pipe to reduce the pressure or the temperature within the heat pipe.', 'a vent includes, a snorkel extending into the heat pipe, the snorkel comprising2. The vessel defined in wherein the vent is adapted to allow vapour phase rather than the liquid phase to escape from the heat pipe and to retain the liquid phase in the heat pipe.3. The vessel defined in wherein the snorkel that extends into the heat pipe and has the open ...

METHOD FOR IRON-MAKING WITH FULL OXYGEN AND HYDROGEN-RICH GAS AND EQUIPMENT THEREOF

A method of ironmaking using full-oxygen hydrogen-rich gas which includes hot transferring and hot charging the high-temperature coke, sinter and pellet into the ironmaking furnace through transferring and charging device, and injecting oxygen and hydrogen-rich combustible gas at a predetermined temperature into the ironmaking furnace through the oxygen tuyere and the gas tuyere disposed at the ironmaking furnace, respectively. It also provides an apparatus for ironmaking using full-oxygen hydrogen-rich gas which includes a raw material system, a furnace roof gas system, a coke oven gas injecting system, a dust injecting system, a slag dry-granulation and residual heat recovering system and an oxygen system. Additionally an apparatus and method for hot transferring and hot charging of ironmaking raw material is disclosed. 1. A method of ironmaking , comprising:directly transferring coke manufactured by a coke oven into a first transmit silo through a closed first transferring device, directly transferring sinter manufactured by a sintering machine into a second transmit silo through a closed second transferring device, and directly transferring pellet manufactured by a pellet firing machine into a third transmit silo through a closed third transferring device;transferring the coke in the first transmit silo into a closed fourth transferring device via a first weighing hopper connected with the first transmit silo through a pipeline or a closed chute, transferring the sinter in the second transmit silo into the fourth transferring device via a second weighing hopper connected with the second transmit silo through a pipeline or a closed chute, and transferring the pellet in the third transmit silo into the fourth transferring device via a third weighing hopper connected with the third transmit silo through a pipeline or a closed chute, the coke, the sinter, and the pellet transferred into the fourth transferring device having a predetermined weight ratio; ...

DESULFURIZATION OF GASES IN THE PRODUCTION OF PIG IRON

A process for producing liquid pig iron (), in which charge materials () containing iron oxide are reduced by a reducing gas () in a first reduction plant () to form a partially reduced first iron product () and are melted in a fusion gasifier () to form the liquid pig iron (). The spent reducing gas () is introduced as export gas () into a second reduction plant (), wherein a sulfur-containing gas () is introduced together with an oxygen-containing gas () and/or together with dust () into the fusion gasifier () and/or into the reducing gas line (). Also, a device for carrying out the process. It is therefore possible for sulfur-containing gas () to be used for production of liquid pig iron (), or DRI, with a simultaneous increase in productivity, without damaging the environment or adversely affecting the quality of the liquid pig iron () or of the DRI. 1. A process for producing liquid pig iron , the process comprising:reducing iron-oxide containing charge materials to produce a part-reduced first iron product in a first reduction unit, the reducing being by means of a reducing gas and then drawing off the reducing gas spent in the reduction as export gas;{'sub': '2', 'removing COfrom the export gas and then introducing the export gas into at least one second reduction unit for producing a part-reduced second iron product;'}introducing the part-reduced first iron product, an oxygen-containing gas, and carbon carriers into a melter gasifier;in the melter gasifier, gasifying the carbon carriers with the oxygen-containing gas and melting the part-reduced first iron product to produce the liquid pig iron with formation of the reducing gas;introducing at least a portion of the reducing gas into the first reduction unit by a reducing-gas line;jetting or introducing a sulfur-containing coke-oven gas, a sulfur-containing natural gas, or a mixture of the sulfur-containing natural gas and the coke-oven gastogether with the oxygen-containing gas and optionally together with ...

Probes, blast furnaces equipped therewith, and methods of fabricating probes

Probes, blast furnaces equipped therewith, and methods of fabricating probes. Such a probe includes a base, a shell connected to the base and constructed of at least first and second housing members that extend together along a length of the probe in a longitudinal direction thereof, and at least one support structure interconnecting the first and second housing members. The probe includes a coolant circuit comprising at least one coolant passage within an interior cavity of the shell. The coolant passage has at least one tube supported by the support structure so that the tube contacts at least one of the first and second housing members. At least one sensor is disposed in the second housing member for performing a measurement at an exterior of the shell.

Top-Pressure Recovery Turbine Deposition Control

Disclosed are methods useful in applications relating to blast furnace processes. The methods of the present invention provide enhanced deposition inhibition of particulate matter in top-pressure recovery turbines. The methods of the present invention comprise adding nitrogen-containing compounds to a top-pressure recovery turbine, inhibiting deposition of solids formed from blast furnace gas on top-pressure recovery turbine components. 1. A method of reducing deposition of blast furnace gas solids in a top-pressure recovery turbine in a metal-producing process , the method comprising: adding a composition comprising ammonia to a top-pressure recovery turbine.2. The method of claim 1 , wherein the composition further comprises an amine.4. The method of claim 3 , wherein the compound of formula (I) is morpholine.6. The method of claim 5 , wherein the compound of formula (II) is cyclohexylamine.7. The method of claim 1 , wherein ammonia and the amine are at a molar ratio of from about 1:1 to about 20:1.8. The method of claim 1 , wherein the composition comprises 10-25% ammonia claim 1 , 5-10% cyclohexylamine claim 1 , 5-10% morpholine claim 1 , and 45-80% water.9. The method of claim 2 , wherein the amine has a boiling point of from about −40° C. to about 175° C.10. The method of claim 1 , wherein the composition comprising ammonia is injected as an aqueous liquid into blast furnace gas in the top-pressure recovery turbine.11. The method of wherein the top-pressure recovery turbine is a dry-type top-pressure recovery turbine.12. (canceled)13. A method of reducing deposition of blast furnace gas solids in a top-pressure recovery turbine in a metal-producing process claim 1 , the method comprising adding a composition comprising an amine to a top-pressure recovery turbine.14. The method of claim 13 , wherein the amine has a molecular weight of from about 15 g/mol to about 250 g/mol.16. The method of claim 15 , wherein the compound of formula (I) is morpholine.18. The ...

SHAFT FURNACE AND METHOD OF OPERATING SAME

A method of operating a shaft furnace includes inserting a mixture including anthracite coal and coke into a cavity defined by the furnace, and disposing a metal feedstock within the cavity. The method includes injecting natural gas at a natural gas flow rate and a first quantity of oxygen gas at a first oxygen gas flow rate into the cavity simultaneously through at least one burner. The method also includes driving a second quantity of oxygen gas at a supersonic oxygen gas flow rate into the cavity through at least one lance, wherein the supersonic oxygen gas flow rate is greater than the first oxygen gas flow rate. The method also includes combusting the mixture within the cavity to produce a stack gas, melting the metal feedstock to produce a melted metal material, and monitoring the stack gas to thereby operate the shaft furnace. A shaft furnace is also disclosed. 1. A method of operating a shaft furnace , the method comprising:inserting a mixture including anthracite coal and coke into a cavity defined by the shaft furnace;disposing a metal feedstock within the cavity;injecting natural gas at a natural gas flow rate and a first quantity of oxygen gas at a first oxygen gas flow rate into the cavity simultaneously through at least one burner;driving a second quantity of oxygen gas at a supersonic oxygen gas flow rate into the cavity through at least one lance, wherein the supersonic oxygen gas flow rate is greater than the first oxygen gas flow rate;combusting the mixture within the cavity to produce a stack gas;melting the metal feedstock to produce a melted metal material; andmonitoring the stack gas to thereby operate the shaft furnace.2. The method of claim 1 , wherein inserting includes maintaining a fuel ratio of an amount of coke present in the mixture to an amount of anthracite coal present in the mixture at from about 1:0.1 to about 1:0.6.3. The method of claim 1 , wherein inserting includes disposing from about 10 parts by weight to about 35 parts by ...

BLAST FURNACE INSTALLATION

A blast furnace installation () equipped with a blast furnace body (), a hot air blowing means (, etc.) for blowing hot air into the blast furnace body () through a tuyere, and a pulverized coal supply means for supplying pulverized coal () into the blast furnace body () through the tuyere. The pulverized coal () is obtained by means of dry distillation of low-grade coal. The pulverized coal supply means is equipped with: a pneumatic conveying means (-) for pneumatically conveying the pulverized coal () to the tuyere by means of a carrier gas () made of a mixture of air () and an inert gas (); a temperature sensor () for detecting the temperature of the carrier gas () near the tuyere; and a control unit () for adjusting the mixing ratio between the air () and the inert gas () in the carrier gas () of the pneumatic conveying means (-) on the basis of information from the temperature sensor (). 1. A blast furnace installation including:a blast furnace body;starting material charging means for charging starting material from a top into an interior of the blast furnace body;hot air blowing means for blowing hot air into the interior of the blast furnace body through a tuyere; and the pulverized coal is obtained by means of dry distillation of low-grade coal; and', pneumatic conveying means for pneumatically conveying the pulverized coal to the tuyere by means of a carrier gas made of a mixture of air and an inert gas;', 'carrier gas state detection means for detecting a state of the carrier gas near the tuyere; and', 'control means for adjusting a mixing ratio between the air and the inert gas in the carrier gas of the pneumatic conveying means based on information from the carrier gas state detection means., 'the pulverized coal supply means includes], 'pulverized coal supply means for supplying pulverized coal into the interior of the blast furnace body through the tuyere; wherein'}2. The blast furnace installation according to claim 1 , whereinthe carrier gas state ...

MANUFACTURING PROCESS CONTROL WITH DEEP LEARNING-BASED PREDICTIVE MODEL FOR HOT METAL TEMPERATURE OF BLAST FURNACE

A blast furnace control system may include a hardware processor that generates a deep learning based predictive model for forecasting hot metal temperature, where the actual measured HMT data is only available sparsely, and for example, measured at irregular interval of time. HMT data points may be imputed by interpolating the HMT measurement data. HMT gradients are computed and a model is generated to learn a relationship between state variables and the HTM gradients. HMT may be forecasted for a time point, in which no measured HMT data is available. The forecasted HMT may be transmitted to a controller coupled to a blast furnace, to trigger a control action to control a manufacturing process occurring in the blast furnace. 1. A method of controlling a manufacturing process in a blast furnace , the method executed by at least one hardware processor , the method comprising:receiving manufacturing process data associated with a blast furnace, the manufacturing process data including at least state variables and control variables used in operating the blast furnace, the state variables including at least a hot metal temperature (HMT) and other state variables, wherein the manufacturing process data includes at least a plurality of measured HMT at different time points, of a product produced in the blast furnace;generating imputed HMT by interpolating the measured HMT;generating HMT gradients based on at least the imputed HMT;defining a causal relationship between at least one of the other state variables and the HMT gradients, the relationship generated as a neural network model;training the neural network model using as training data, a weighted combination of the imputed HMT up to a last known measured HMT and predicted HMT up to the last known measured HMT,the trained neural network model trained to predict a current point in time value for the HMT, in which no measured HMT for the current point in time is available, wherein the trained neural network model ...

ROTARY CHARGING DEVICE FOR SHAFT FURNACE

A rotary charging device for a shaft furnace comprising: a stationary housing () and a suspension rotor () that is supported so that it can rotate about a substantially vertical axis (A), a charge distributor () being pivotally suspended to the suspension rotor (). Rotary drive means are provided for rotating the suspension rotor about its axis (A) and tilting drive means for pivoting the charge distributor () about a substantially horizontal pivoting axis (B), independently from said rotary drive means. The tilting drive means are mounted onto the suspension rotor () and rotate therewith; they comprise: an electric tilting motor (M) is installed inside the main casing () and having a substantially horizontal output shaft (); a tilting input gear () driven by the tilting motor output shaft; and a tilting output gear () rotationally integral with a suspension arm () of said chute distributor (), said tilting input gear meshing with said tilting output gear. 2. The rotary charging device according to claim 1 , wherein said suspension rotor comprises a cylindrical body and a bottom flange.3. The rotary charging device according to claim 2 , wherein said tilting drive means are supported by said bottom flange.4. The rotary charging device claim 1 , wherein:a rotary motor is mounted laterally to said stationary housing or inside said stationary housing with its output shaft substantially horizontal; andsaid rotary drive means comprise a main transmission with an input gear driven by said output shaft and meshing with a toothed ring coaxial and rotationally integral with said suspension rotor.5. The rotary charging device according to claim 4 , wherein said toothed ring is fixed to a lower side of said bottom flange; and said input gear driven by said rotary motor is arranged below said bottom flange in meshing engagement with said toothed ring.6. The rotary charging device according to claim 5 , wherein said suspension rotor is rotationally supported by a rolling bearing ...

BLAST FURNACE INSTALLATION

This blast furnace installation is configured such that when pulverized coal, which has been prepared by pulverizing high-grade coal, is pneumatically conveyed into a supply tank by a combustion gas, pulverized coal, which has been prepared by drying, dry-distilling, cooling, and pulverizing low-grade coal with a drying device, a dry-distillation device, a cooling device, and a pulverization device, is supplied from a storage tank by a feeder and pneumatically conveyed into the supply tank by a nitrogen gas, and then the pulverized coals in the supply tank are pneumatically conveyed from a supply line into an injection lance by a carrier gas, a control unit controls the feeders so as to gradually increase the supply amount of pulverized coal while maintaining the total amount of supply amount of pulverized coal and supply amount of pulverized coal to be supplied to the tuyere at a prescribed amount. 1. A blast furnace installation comprising:a blast furnace body;starting material charging means for charging a starting material from a top into an interior of the blast furnace body;hot air blowing means for blowing hot air into the blast furnace body from a tuyere; andpulverized coal supply means for supplying pulverized coal into the blast furnace body through the tuyere; whereinthe pulverized coal supply means includes:moisture removal means for high-grade coal for evaporating moisture in high-grade coal;pulverization means for high-grade coal for pulverizing the high-grade coal, moisture in the high-grade coal having been removed by the moisture removal means for high-grade coal, to provide pulverized coal;moisture removal means for low-grade coal for evaporating moisture in low-grade coal;pyrolysis means for pyrolyzing the low-grade coal, moisture in the low-grade coal having been removed by the moisture removal means for low-grade coal;cooling means for cooling the low-grade coal, the low-grade coal having been pyrolyzed by the pyrolysis means;pulverization means ...

Method for preparation of ammonia gas and co2 for a urea synthesis process

The invention relates to a process for preparing ammonia gas and CO 2 for urea synthesis. In the process of the invention, a process gas containing nitrogen, hydrogen and carbon dioxide as main components is produced from a metallurgical gas. The metallurgical gas consists of blast furnace gas, or contains blast furnace gas at least as a mixing component. The process gas is fractionated to give a gas stream containing the CO 2 component and a gas mixture consisting primarily of N 2 and H 2 . An ammonia gas suitable for the urea synthesis is produced from the gas mixture by means of ammonia synthesis. CO 2 is branched off from the CO 2 -containing gas stream in a purity and amount suitable for the urea synthesis.

Plant complex for producing steel and a method for operating the plant complex

A plant complex for producing steel, having a blast furnace for producing pig iron; a converter steel works for producing crude steel; a gas pipeline system for gases that occur in the production of pig iron and/or the production of crude steel; a chemical plant and/or a biotechnology plant which are/is connected to the gas pipeline system, wherein the plant complex additionally includes a biogas plant which is connected to the gas pipeline system.

SUSTAINABLE PROCESS FOR THE CO-GENERATION OF PIG IRON AND ELECTRIC ENERGY USING WOOD AS FUEL

An integrated and sustainable process is presented for the co-generation of pig iron and electric energy in a blast furnace installation in which dried wood replaces charcoal as the fuel, as the reducing and as the carburizing agent. Furthermore, this application incorporates the process—until now independent—of transforming wood into coal, inside the blast furnace. 1. A sustainable joint smelting and energy producing process where wood is used as the only fuel , reducing agent and carburizing agent and where all the wood used is put inside the blast furnace.2. The process of claim 1 , where various additional plant facilities may be included claim 1 , such as for example—but not only—a steel mill or a wood drying plant claim 1 , that use—partially or totally—the surplus energy from the smelting plant.3. A sustainable smelting process according to where wood is used as the only fuel claim 1 , reducing agent and carburizing agent and where all the wood used (being it the only fuel claim 1 , reducing agent and carburizing agent) is put inside the blast furnace.4. A sustainable joint smelting-energy producing process where wood is used as the only fuel claim 1 , reducing agent and carburizing agent claim 1 , and where the excess energy produced is an indirect function of the % fixed carbon content of the dry wood.5. A sustainable smelting process where wood is used as the only source of both carbon and energy62. A sustainable joint smelting-energy producing process whose flow-sheet is substantially similar claim 1 , from the conceptual point of view—in all or some of its tables/equations—to the one depicted in and/or claim 1 , and/or where the quantitative and qualitative relations (ratios) are substantially as shown in the tables and equations shown.7. A sustainable smelting process where wood is the only fuel claim 1 , reducing agent and carburizing agent claim 1 , and where only part of the wood is put inside the blast furnace.8. A sustainable co-generation process ...

Blast Furnace Spool Liner

A hearth refractory assembly is provided to improve gas sealing of a blast furnace hearth. The blast furnace hearth has a metal outer shell and a spool extending outwardly therefrom. The spool has a spool metal outer wall and forms an opening in said hearth metal outer shell. The refractory liner assembly includes a plurality of hearth refractory bricks arranged in a stacked configuration and lining the interior of the hearth metal outer shell and the spool. A liner is positioned between the hearth refractory brick and said hearth metal outer shell or within the spool and covers substantially all of the spool opening. The liner is a sheet made substantially from graphite. 1. A hearth refractory assembly for a blast furnace hearth having a hearth metal outer shell and a spool extending outwardly from the hearth metal outer shell , the spool including a spool metal outer wall and forming a spool opening in said hearth metal outer shell , the refractory liner assembly comprising:a plurality of hearth refractory bricks arranged in a stacked configuration and lining the interior of said hearth metal outer shell; anda liner positioned between said hearth refractory brick and said hearth metal outer shell and positioned to cover substantially all of said spool opening, said liner being a sheet made substantially from graphite.2. The hearth refractory assembly according to wherein said liner comprises a compressed mass of exfoliated graphite particles.3. The hearth refractory assembly according to wherein said liner is from between about 0.1 mm and about 3 mm thick.4. The hearth refractory assembly according to wherein said liner includes an aperture aligned with a tap hole axis though which a tap hole is drilled.5. The hearth refractory assembly according to wherein said liner has a density from between about 0.1 grams per cubic centimeter to about 2.0 grams per cubic centimeter.6. The hearth refractory assembly according to wherein said hearth refractory brick is made ...

PRESSURE RELIEF VALVE FOR PRESSURIZED FURNACE

A pressure relief valve system has a fluid outlet () from a pressure vessel; a flexible expansion piece () at an end of the fluid outlet remote from the pressure vessel; a primary pressure relief valve has a valve seat and a valve lid (). The valve seat has a flange () mounted on the expansion piece and the valve lid forms a valve seal with the flange. A fluid off-take () is connected to the fluid outlet () and a secondary pressure relief valve () receives fluid from the fluid off-take. The secondary pressure relief valve has an outlet () coupled to a valve opening actuator (), whereby passage of fluid through the secondary pressure relief valve () causes the opening actuator to operate to open the valve lid (). 1. A pressure relief valve system for a pressure vessel , the system comprising:a pressure vessel;a fluid outlet from the pressure vessel; a flexible expansion piece at an end of the fluid outlet remote from the pressure vessel;a primary pressure relief valve comprising a valve seat and a valve lid, the valve seat comprising a flange mounted on the flexible expansion piece; and the valve lid is configured to form a valve seal with the flange; anda fluid off-take connected to the fluid outlet; a secondary pressure relief valve to receive fluid from the fluid off-take; the secondary pressure relief valve further comprising an outlet coupled to a valve opening actuator, whereby passage of fluid through the secondary pressure relief valve causes the valve opening actuator to operate to open the valve lid.2. A system according to claim 1 , wherein the flexible expansion piece comprises a hollow body with concertinaed sides.3. A system according to claim 2 , wherein the hollow body has a substantially cylindrical cross-section.4. A system according to claim 3 , wherein the cross section of the hollow body is less than or equal to the cross-section of the fluid outlet.5. A system according to any preceding claim claim 3 , wherein the lid is coupled to the opening ...

SLAG REMOVAL DEVICE AND SLAG REMOVAL METHOD

Provided is a slag removal device for a blast furnace, capable of readily and reliably achieving slag removal using a simple device configuration, even when pulverized coal is used that has not had the softening temperature thereof adjusted, and capable of reducing as much as possible the risk of pipe damage, etc. The slag removal device for a blow pipe is provided in a blow pipe that injects auxiliary fuel pulverized coal together with hot air from a tuyere for a blast furnace main body that produces pig iron from iron ore. A jet nozzle that injects solids having a higher fusion point than the temperature in the vicinity of the tuyere and having a particle diameter greater than that of the pulverized coal, into pulverized coal that flows inside the blow pipe and into the hot air, is provided in the slag removal device. 1. A slag removal device for a blow pipe which is provided in a blow pipe that injects pulverized coal as an auxiliary fuel along with hot air through a tuyere into a blast furnace main body that produces pig iron from iron ore , with slag of the pulverized coal including a component that melts as a result of the hot air and/or combustion heat of the pulverized coal , the device comprising:a jet nozzle that injects solids having a higher melting point than a temperature in the vicinity of the tuyere and having a particle diameter greater than that of the pulverized coal, into the pulverized coal that flows in the blow pipe and into the hot air, the jet nozzle being provided with a solids supply system that supplies the solids and has provided therein an open/close control valve.2. The slag removal device according to claim 1 , further comprising: a swirling flow forming section that generates a swirling flow in a flow of the hot air at a position on an upstream side of an injection lance that injects the pulverized coal in an interior of the blow pipe.3. The slag removal device according to claim 1 , further comprising: a jet nozzle that ejects a ...

BLAST FURNACE PLANT

The invention relates to a blast furnace plant (-) with a blast furnace () and a charging device () for the blast furnace (). In order to provide an economical way of providing clean gas to the charging device, the invention provides that the blast furnace plant (-) further comprises: at least one nozzle () for introducing a clean gas into said charging device (); a cleaning device () which is connected for receiving gas from the blast furnace () and arranged for removing dust from the gas; at least one compressor () arranged for receiving gas from the cleaning device (), compressing the gas and feeding the gas to the at least one nozzle (); and at least one turbine () connected for receiving and being driven by gas from the blast furnace (), the at least one turbine being mechanically coupled to drive the at least one compressor (). 1. Blast furnace plant with a blast furnace and a charging device for the blast furnace , wherein the blast furnace plant further comprises:at least one nozzle for introducing a clean gas into the charging device;a cleaning device which is connected for receiving gas from the blast furnace and arranged for removing dust from the gas;at least one compressor arranged for receiving gas from the cleaning device, compressing the gas and feeding the gas to the at least one nozzle; andat least one turbine connected for receiving and being driven by gas from the blast furnace, the at least one turbine being mechanically coupled to drive the at least one compressor.2. Blast furnace plant according to claim 1 , wherein the charging device comprises a main casing with a stationary housing and a suspension rotor for a movable distribution chute claim 1 , said suspension rotor being rotatably mounted with respect to the housing claim 1 , wherein at least one of said nozzles is disposed for introducing the clean gas into the main casing.3. Blast furnace plant according to claim 1 , wherein the charging device comprises a hopper for raw materials to ...

Additive manufactured component that indicates wear and system and method thereof

A three-dimensional printed metal component for a lubricated system is provided. The metal component includes a three-dimensional printed metal body formed of a plurality of metal layers of a first metal and having a contact surface configured to movingly contact another component of the lubricated system. The metal component further includes at least one first three-dimensional printed wear-identifying layer of a material different from the first metal embedded in the metal body at a predetermined depth, a predetermined distance from an outer surface portion of the contact surface. The predetermined distance defines a predetermined wear state of the contact surface associated with replacement of the metal component.

MONOLITHIC REFRACTORY

In a monolithic refractory, in terms of a proportion in 100 mass % of a refractory raw material having a grain size of 8 mm or smaller, an amount of CaSrAlO(where, 0≤X≤0.5) is 0.5 mass % or more and 10 mass % or less, and a polyvalent metal salt of oxycarboxylic acid is 0.05 mass % or more and 1.0 mass % or less. 1. A monolithic refractory , wherein , in terms of a proportion in 100 mass % of a refractory raw material haying a grain size of 8 mm or smaller ,{'sub': X', '1−X', '2', '4, 'an amount of CaSrAlO(where, 0≤X≤0.5) is 0.5 mass % or more and 10 mass % or less, and'}an amount of a polyvalent metal salt of oxycarboxylic acid is 0.05 mass % or more and 1.0 mass % or less.2. The monolithic refractory according to claim 1 , wherein an amount of the polyvalent metal salt of oxycarboxylic acid is 0.1 mass % or more and 1.0 mass % or less.3. The monolithic refractory according to claim 1 , wherein claim 1 , in terms of a proportion in 100 mass % of a refractory raw material having a gain size of 8 mm or smaller claim 1 ,{'sub': X', '1−X', '2', '4', 'Y', '1−Y', '4', '7', 'Z', '1−Z', '2', '3, 'a total amount of CaSrAlO(where, 0≤X≤0.5), CaSrAlO(where, 0≤Y≤0.5) and 12(CaO)(SrO)-7AlO(where, 0≤Z≤0.5) is 10 mass % or less.'}4. The monolithic refractory according to claim 1 , wherein claim 1 , in terms of a proportion in 100 mass % of the refractory raw material claim 1 ,an amount of a magnesia raw material having a grain size of 0.1 mm or smaller is 3 mass % or more and 12 mass % or less.5. The monolithic refractory according to claim 1 , wherein claim 1 , in terms of a proportion in 100 mass % of the refractory raw material claim 1 ,an amount of a spinel raw material having a grain size of 0.1 mm or smaller is 5 mass % or more and 25 mass % or less.6. The monolithic refractory according to claim 1 , wherein claim 1 , in terms of a proportion in 100 mass % of the refractory raw material claim 1 ,a total amount of a spinel raw material or an alumina raw material, having a ...

Monitoring system for annular scrubbers

A gas scrubber cone condition monitoring system has a sealed gas scrubber cone ( 9 ) moveably mounted in a gas pipe ( 1 ), a collar ( 5 ) fixedly mounted radially outward of the cone in the gas pipe and a pressure tap ( 12 ) into the sealed cone. The pressure tap is coupled to a condition monitor ( 17,18 ) via an input line ( 16 ). An output line ( 14 ) from the condition monitor is coupled to a gas pipe ( 15 ), downstream of the sealed cone. The condition monitor includes at least one of a pressure gauge and a gas flow meter.

DEVICE FOR PRODUCING PARTIALLY REDUCED IRON

Provided is a device for producing partially reduced iron, with which partially reduced iron having a prescribed reduction ratio can be produced efficiently. The present invention is equipped with: CO sensors that detect the carbon monoxide concentration in an exhaust gas; an Osensor that detects the oxygen concentration in an exhaust gas; an exhaust gas circulation device that adjusts the circulating amount of the exhaust gas supplied to a reduction furnace main body, and an air feed device that adjusts the amount of air that being fed; and a control device that controls these devices. The control devices on the basis of the carbon monoxide concentration in the exhaust gas as detected by the CO sensor and the oxygen concentration in the exhaust gas as detected by the Osensor. 1. A device for producing partially reduced iron including: a reduction furnace main body in which pellets formed by mixing and pelletizing a reduction carbon material and an iron oxide-containing raw material are packed on an endless grate to be heated and reduced; exhaust gas circulating means for circulating an exhaust gas discharged from a pellet bed by discharging the exhaust gas from the reduction furnace main body and feeding the exhaust gas to the reduction furnace main body; and air feeding means for feeding air to the reduction furnace main body ,the device being configured to produce a partially reduced iron by combusting a flammable gas and a volatile component together with the exhaust gas and the air to form a combustion zone in the pellet bed, and causing the combustion zone to move sequentially toward an upper side of the pellet bed along with the movement of the endless grate, the flammable gas generated by the reduction, the volatile component generated when the pellets which are heated heat the pellets in an upper layer, characterized in that carbon monoxide concentration detecting means for detecting a carbon monoxide concentration of the exhaust gas discharged from the ...

Combined system for producing steel and method for operating the combined system

The invention relates to a plant complex for steel production comprising a blast furnace for producing pig iron, a converter steel mill for producing crude steel and a gas-conducting system for gases that occur in the production of pig iron and/or in the production of crude steel. According to the invention, the plant complex additionally has a chemical or biotechnological plant connected to the gas-conducting system and a plant for producing hydrogen. The plant for producing hydrogen is connected to the gas-conducting system by a hydrogen-carrying line. Also the subject of the invention is a method for operating the plant complex.

METHOD FOR REDUCING CO2 EMISSIONS IN THE OPERATION OF A METALLURGICAL PLANT

The invention relates to a method for reducing COemissions in the operation of a metallurgical plant which comprises at least one blast furnace for producing crude iron and a converter steel mill for producing crude steel. According to the invention, at least a partial amount of the blast-furnace top gas that occurs in the blast furnace in the production of crude iron and/or a partial amount of the converter gas that occurs in the production of crude steel is taken for producing syngas that is used for producing chemical products. At the same time, the energy demand of the metallurgical plant is at least partly covered by using electricity that is obtained from renewable energy. 19.-. (canceled)10. A method for reducing COemissions in the operation of a metallurgical plant which comprises at least one blast furnace for producing crude iron and a converter steel mill for producing crude steel , the method comprising:a) producing syngas from a partial amount of the blast-furnace top gas that occurs in the blast furnace in the production of pig iron and a partial amount of the converter gas that occurs in the production of crude steel, the syngas being used for producing chemical products, wherein 1% to 60% of the raw gases that occur as blast-furnace top gas and converter gas are used for producing the syngas; andb) covering the energy demand of the metallurgical plant at least partly by using electricity that is obtained from renewable energy.11. The method according to claim 10 , wherein 10% to 60% of the raw gases that occur as blast-furnace top gas and converter gas are used for producing syngas.12. The method according to claim 10 , wherein the metallurgical plant is operated in combination with a coke-oven plant claim 10 , and wherein at least a partial amount of a coke-oven gas that occurs in the coke-oven plant is used for producing syngas.13. The method according to claim 10 , wherein 1% to 60% of the raw gases that occur as blast-furnace top gas claim 10 , ...

COMBINED SYSTEM FOR PRODUCING STEEL AND METHOD FOR OPERATING THE COMBINED SYSTEM

The invention relates to a plant complex for steel production comprising a blast furnace for producing pig iron, a converter steel mill for producing crude steel and a gas-conducting system for gases that occur when producing the pig iron and/or producing the crude steel. According to the invention, the plant complex additionally has a chemical plant or biotechnological plant, connected to the gas-conducting system, and also energy storage for covering at least part of the electricity demand of the plant complex. Also the subject of the invention is a method for operating the plant complex. 112.-. (canceled)13. A plant complex for steel production comprising:a blast furnace for producing pig iron;a converter steel mill for producing crude steel; anda gas-conducting system for gases that occur in at least one of the production of pig iron and crude steel; a chemical plant or a biotechnological plant connected to the gas-conducting system;', 'an energy storage for covering at least part of the electricity demand of the plant complex; and', 'an electrolysis plant for the electrolysis of water, the electrolysis plant being connected to the chemical plant by a hydrogen line and being connected to at least one of the blast furnace and the converter steel mill for producing crude steel or treating crude steel by means of an oxygen return device, wherein, for the purpose of supplying electricity to the electrolysis plant, the energy storage is electrically connected thereto., 'the plant complex additionally comprises, 'wherein14. The plant complex according to claim 13 , wherein the energy storage is formed as a chemical or electrochemical storage.15. The plant complex according to claim 13 , wherein the plant complex additionally comprises a power-generating plant claim 13 , which is designed as a gas-turbine power-generating plant or a gas-turbine and steam-turbine power-generating plant and is operated with a gas which comprises at least a partial amount of one of: the ...

PROCESS AND DEVICE FOR TREATING FURNACE GAS

A process and a device for treating a flow of furnace gas with a pressure of more than 1 bar flowing through a channel. A powder agent, such as a powder comprising alkali reagents, such as lime, and/or absorbents, such as activated coal, is injected under an overpressure into the furnace gas flow via an injector which is positioned centrally within the channel The powder agent may be fluidized. The pressure for injecting the powder may be adjusted by controlling the volume of fluidization gas vented via a venting outlet. 1. A process for treating a flow of furnace gas with a pressure of more than 1 bar flowing through a channel , wherein a powder agent is injected under an overpressure into the furnace gas flow , wherein the powder agent is added to the furnace gas flow via an injector which is positioned centrally within the channel2. The process of wherein the powder agent is fluidized before it is injected.3. The process of claim 2 , wherein the pressure for injecting the powder agent is adjusted by controlling the volume of fluidization gas vented via a venting outlet.4. The process of claim 1 , wherein the powder agent is radially injected into the blast furnace gas flow.5. The process of claim 1 , wherein the powder agent comprises one or more absorbents.6. The process of claim 1 , wherein the furnace gas flow is subsequently filtered.7. A device for treating a flow of furnace gas claim 1 , the device comprising a flow channel and an injector centrally arranged within the flow channel and provided with radially directed outlets claim 1 , the injector comprising a chamber configured to contain a fluidized bed of a powder agent with a supply for a fluidizing gas configured to blow the powder agent via the radial outlets into the furnace gas flow with an overpressure of at least 10 mbar relative to the pressure in the furnace gas flow.8. The device of claim 7 , further comprising a vent connecting the chamber to a fluidizing gas discharge outside the channel.9. ...

METHOD FOR OPERATION OF BLAST FURNACE

A method for operation of a blast furnace able to greatly reduce the COemission and enabling stable production of pig iron over a long period of time in a commercial blast furnace, that is, a method for operation of a blast furnace in which iron ore and coke are charged from a furnace top and is blown in pulverized coal from a usual tuyere, comprising blowing in a gas containing at least one of hydrogen and hydrocarbon from the usual tuyere together with the pulverized coal and blowing a gas comprised of a top gas of the blast furnace from which carbon dioxide and steam is removed from a shaft tuyere into the blast furnace. 18-. (canceled)9. A method for operation of a blast furnace in which iron ore and coke are charged from a furnace top and pulverized coal is injected from a usual tuyere , comprisingblowing a blast containing at least one of hydrogen and hydrocarbon from said usual tuyere together with said pulverized coal,blowing a gas comprised of a top gas of the blast furnace from which carbon dioxide and steam are removed from a shaft tuyere into the blast furnace, andblowing said top gas from the usual tuyere without heating and raising an oxygen enrichment of gas blown from the usual tuyere.10. The method for operation of a blast furnace according to claim 9 , further comprising blowing blast comprised of top gas of the blast furnace from which carbon dioxide and steam are removed from the usual tuyere into the blast furnace.12. The method for operation of a blast furnace according to claim 9 , wherein a blowing rate of said gas containing at least one of hydrogen and hydrocarbon is 30 Nm/tHM or more.13. The method for operation of a blast furnace according to claim 9 , wherein said top gas blown from the shaft tuyere is blown from said shaft tuyere by a blowing rate of 400 Nm/tHM or less at a temperature of 600° C. to 1000° C.14. The method for operation of a blast furnace according to claim 9 , wherein the blowing rate of the top gas blown from said ...

COMBINED SYSTEM FOR PRODUCING STEEL AND METHOD FOR OPERATING THE COMBINED SYSTEM

The invention relates to a plant complex for steel production comprising a blast furnace for producing pig iron, a converter steel mill for producing crude steel, a gas-conducting system for gases that occur when producing the pig iron and/or the crude steel, and a power-generating plant for electricity generation. The power-generating plant is designed as a gas-turbine power-generating plant or gas-turbine and steam-turbine power-generating plant and is operated with a gas that comprises at least a partial amount of the blast-furnace top gas that occurs in the blast furnace and/or a partial amount of the converter gas. The plant complex additionally comprises a chemical plant and a biotechnological plant, the power-generating plant, the chemical plant and the biotechnological plant being arranged in a parallel setup with regard to the gas supply. The gas-conducting system comprises an operationally controllable gas-distributing device for dividing the streams of gas. 114.-. (canceled)15. A plant complex for producing steel , comprising:a blast furnace for producing pig iron;a converter steel mill for producing crude steel;a gas-conducting system for gases that occur in the production of pig iron and crude steel;and a power-generating plant for electricity generation, the power-generating plant being designed as a gas-turbine power-generating plant or gas-turbine and steam-turbine power generating plant and being operated with a gas that comprises at least a partial amount of one of a blast-furnace top gas that occurs in the production of pig iron in the blast furnace, and a converter gas that occurs in the converter steel mill; a chemical plant and a biotechnological plant are connected to the gas-conducting system;', 'the power-generating plant, the chemical plant and the biotechnological plant are arranged in a parallel setup with respect to the gas supply; and', 'the gas-conducting system comprises an operationally controllable gas-distributing device for ...

A METHOD AND APPARATUS FOR SUPPLYING BLAST TO A BLAST FURNANCE

Apparatus for supplying blast to a blast furnace () having a plurality of hot blast stoves (), each stove including a cold blast inlet, a fuel inlet, an air supply inlet, a hot blast outlet, and a waste gas outlet; a waste heat recovery unit () connected to a fuel supply, the stove fuel inlet and the cold blast inlet. The stove waste gas outlets are connected to the cold blast inlets, whereby stove waste gas from one stove () is supplied, via the waste heat recovery unit, as cold blast to another stove ().

FURNACE BRICKS, COOLERS, AND SHELLS/BINDINGS OPERATING IN SYSTEMIC BALANCE

Many substantially identical refractory bricks are assembled into completed horizontal ring rows neatly nested into laterally curved copper stave coolers surrounding the ring. Each brick “locks” into horizontal channels between pairs of parallel horizontal protruding ribs on the hot faces of the stave coolers. Every stave cooler is provisioned with a full covering of the refractory bricks after the stave cooler is mounted inside a corresponding steel containment shell. None of the refractory bricks are permitted to be finished bridging between adjacent stave coolers in the same horizontal row. Each brick is installed in their respective stave coolers with crushable or deformable mortar filling the channels. Each brick hooks a “toe” just under and into an upper of the pair of horizontal ribs, and then rotates in down with favorably oriented and directed earth's gravity to stay in place at least until a next upper row of bricks in a superior horizontal ring “lock” them in a second way. 1. A refractory brick to form a crucible lining in a pyrometallurgical furnace , comprising: a flat/parallel top comprising a means for thermal contact with a portion of a bottom surface of a horizontal ring row of substantially identical bricks placed immediately above it in a pyro-metallurgical furnace,', 'a flat/parallel back comprising a means for thermal contact with a laterally curved copper stave cooler,', 'a flat/parallel front comprising a means for receiving a heat flux through its own hot face in the pyro-metallurgical furnace,', 'a pair of opposite flat/parallel vertical sides together comprising a means for thermal contact shoulder-to-shoulder with others in a same horizontal ring row of substantially identical bricks in the pyro-metallurgical furnace, and', 'a flat/parallel bottom comprising a means for thermal contact with a portion of a top surface of a horizontal ring row of substantially identical bricks placed immediately below it in the pyro-metallurgical furnace;, ' ...

CHARGING SYSTEM, IN PARTICULAR FOR A SHAFT SMELT REDUCTION FURNACE

A charging system for a shaft smelt reduction furnace includes a frame structure for mounting on a top charge opening of a shaft smelt reduction vessel; a center shaft arrangement supported by the frame structure and for removing off-gas gases from the furnace and to introduce granular charge materials to form a stack of materials in the furnace. The center shaft arrangement includes a center hood for off-gas extraction; a pair of first and second feed channels for first and second materials. 1. A charging system for a shaft smelt reduction furnace , comprising:a frame structure for mounting on a top charge opening of a shaft smelt reduction vessel; a center hood for off-gas extraction;', 'a pair of first feed channels for a first material, one on each side of said center hood; and', 'a pair of second feed channels for a second material arranged on respective sides of said first feed channels;, 'a center shaft arrangement supported by said frame structure and configured to remove off-gas gases from the furnace and to introduce granular charge materials in order to form a stack of materials in the furnace, said center shaft arrangement comprisingwherein said center hood comprises a pair of facing off-gas panels defining an off-gas channel, each off-gas panel cooperating with a respective partition wall to define a respective first feed channel; andwherein each partition wall cooperates with a respective outer wall to define a respective second feed channel;wherein the partition walls comprise lower portions that extend towards each other below said center hood to define a center feed passage, whereby material descending through said first feed channels may, before flowing through said center feed passage, accumulate on said lower portions according to the angle of repose of said material, thereby permitting self-adjustment of the first material stock-line in the shaft arrangement.2. The charging system according to claim 1 , wherein each partition wall comprises a ...

PLANT COMBINATION FOR PRODUCING STEEL AND METHOD FOR OPERATING THE PLANT COMBINATION

The invention relates to a plant complex for steel production comprising a blast furnace for producing pig iron, a converter steel mill for producing crude steel, a gas-conducting system for gases that occur in the production of pig iron and/or in the production of crude steel, and a power-generating plant for electricity generation. The power-generating plant is operated with a gas that comprises at least a partial amount of the blast-furnace top gas that occurs in the production of pig iron and/or a partial amount of the converter gas. According to the invention, a chemical or biotechnological plant is provided and connected to the gas-conducting system and arranged in parallel with the power-generating plant with respect to the gas supply. Externally obtained electricity and power-generating plant electricity are used to cover the electricity demand of the plant complex. 118.-. (canceled)19. A plant complex for the production of steel , comprising:a blast furnace for producing pig iron;a converter steel mill for producing crude steel;a gas-conducting system for gases that occur in the production of pig iron and/or the production of crude steel;a power-generating plant for electricity generation; anda chemical or biotechnology plant; the power-generating plant is designed as a gas-turbine power-generating plant or gas-turbine and steam-turbine power-generating plant′', 'the power-generating plant is operated with a gas that comprises at least a partial amount of blast-furnace top gas that occurs in the production of pig iron in the blast furnace and/or a partial amount of the converter gas that occurs in the converter steel mill;', {'b': '3', 'the chemical or biotechnological plant is connected to the gas-conducting system and arranged in parallel with the power-generating plant () with respect to the gas supply; and'}, 'the gas-conducting system comprises an operationally controllable gas diverter for dividing the streams of gas that are fed to the power- ...

METHOD FOR GENERATING SYNTHESIS GAS IN CONJUNCTION WITH A SMELTING WORKS

The invention relates to a method for producing syngas in combined operation with a metallurgical plant which comprises at least one blast furnace for producing crude iron, a converter steel mill and a coke-oven plant. Part of the blast-furnace top gas that is produced in the production of crude iron and/or part of the converter gas that occurs in the converter steel mill and/or part of the coke-oven gas that is produced in the coke-oven plant are mixed. By choosing the gas streams that are brought together to form a mixed gas and/or by changing the mixing ratios of the gas streams that are brought together, at least two streams of useful gas are produced, differing with regard to their composition and respectively prepared to form streams of syngas. 113.-. (canceled)14. A method for producing syngas in combined operation with a metallurgical plant which comprises at least one blast furnace for producing crude iron , a converter steel mill , and a coke-oven plant , the method comprising:mixing a part of at least two of: a blast-furnace top gas produced in the production of crude iron, a converter gas that occurs in the converter steel mill, and a coke-oven gas produced in the coke-oven plant; at least two streams of useful gas are produced by choosing the gas streams that are brought together to form a mixed gas or by changing the mixing ratios of the gas streams that are brought together, the two streams differing with regard to their composition and respectively prepared to form streams of syngas;', 'a first stream of useful gas is formed by mixing at least two gas streams that occur as blast-furnace top gas, converter gas, or coke-oven gas;', 'a second stream of useful gas comprises at least one of blast-furnace top gas, converter gas or coke-oven gas; and', {'sub': 2', '2', '2', '2', '2, 'the first stream of useful gas produced contains H, and by gas conditioning, is turned into a first syngas containing (1) CO and H; or (2) Nand Has the main constituents, and ...

INTEGRATED HEATED MEMBER MANAGEMENT SYSTEM AND METHOD FOR CONTROLLING SAME

An integrated heated member management system includes: a cable module at least partially inserted into a heated member; a measurement module for measuring information generated in the cable module; an integrated management module for identifying a degree of damage to the heated member by a molten material on the basis of the information measured by the measurement module, to generate management information relating to the heated member; and a local terminal for receiving, from the integrated management module, the management information relating to the heated member. 1. An integrated heated member management system providing integrated management of damage to a heated member by a hot molten material , the integrated heated member management system comprising:a cable module at least partially inserted into the heated member;a measurement module disposed outside the heated member and measuring information generated from the cable module;an integrated management module ascertaining a degree of damage to the heated member by the molten material based on the information measured by the measurement module, displaying a changed condition of the heated member, and generating management information on the heated member; anda local terminal receiving the management information on the heated member from the integrated management module.2. The integrated heated member management system according to claim 1 ,wherein the measurement module measures a resistance value changed as the cable module is damaged due to damage to the heated member by the molten material, andthe integrated management module calculates an insertion location of the damaged cable module based on the changed resistance value and ascertains a penetration depth of the molten material into the heated member based on the insertion location of the damaged cable module.3. The integrated heated member management system according to claim 1 ,wherein the cable module comprises: a plurality of first unit cables ...

Process for the preparation of chemical raw materials

Coke-oven gas and blast-furnace gas are mixed with one another and used in this mixture directly for methanol synthesis.

INTEGRATED HYDROGEN PRODUCTION METHOD AND SYSTEM

Herein discussed is a method of producing hydrogen comprising introducing a metal smelter effluent gas or a basic oxygen furnace (BOF) effluent gas or a mixture thereof into an electrochemical (EC) reactor, wherein the EC reactor comprises a mixed-conducting membrane. In an embodiment, the method comprises introducing steam into the EC reactor on one side of the membrane, wherein the effluent gas is on the opposite side of the membrane, wherein the effluent gas and the steam are separated by the membrane and do not come in contact with each other. 1. A method of producing hydrogen comprising introducing a metal smelter effluent gas or a basic oxygen furnace (BOF) effluent gas or a mixture thereof into an electrochemical (EC) reactor , wherein the EC reactor comprises a mixed-conducting membrane.2. The method of comprising introducing steam into the EC reactor on one side of the mixed-conducting membrane claim 1 , wherein the effluent gas is on the opposite side of the mixed-conducting membrane claim 1 , wherein the effluent gas and the steam are separated by the mixed-conducting membrane and do not come in contact with each other.3. The method of claim 1 , wherein the EC reactor comprises an anode on the effluent gas side and a cathode on the steam side claim 1 , wherein the anode and the cathode are separated by the mixed-conducting membrane and are in contact with the mixed-conducting membrane respectively.4. The method of claim 3 , wherein the anode and the cathode are separated by the mixed-conducting membrane and are both exposed to a reducing environment.5. The method of claim 3 , wherein the anode and the cathode comprise Ni or NiO and a material selected from the group consisting of YSZ claim 3 , CGO claim 3 , SDC claim 3 , SSZ claim 3 , LSGM claim 3 , and combinations thereof.6. The method of claim 3 , wherein at least a portion of the cathode exhaust gas is recycled to enter the EC reactor on the cathode side of the mixed-conducting membrane.7. The method ...

BLAST FURNACE OPERATION METHOD

According to a certain viewpoint of the present invention, there is provided a blast furnace operation method comprising blowing a high-concentration hydrogen-containing gas containing 80 mol % or more of hydrogen gas from a tuyere under: a condition in which a blowing temperature of the high-concentration hydrogen-containing gas is room temperature or higher and 300° C. or lower and a gas volume of the hydrogen gas in the high-concentration hydrogen-containing gas is 200 Nm/t or more and 500 Nm/t or less; a condition in which the blowing temperature of the high-concentration hydrogen-containing gas is higher than 300° C. and 600° C. or lower and the gas volume of the hydrogen gas in the high-concentration hydrogen-containing gas is 145 Nm/t or more; a condition in which the blowing temperature of the high-concentration hydrogen-containing gas is higher than 600° C. and 900° C. or lower and the gas volume of the high-concentration hydrogen-containing gas is 125 Nm/t or more, or the like. 1. A blast furnace operation method comprising blowing a high-concentration hydrogen-containing gas containing 80 mol % or more of hydrogen gas from a tuyere under:{'sup': 3', '3, 'a condition in which a blowing temperature of the high-concentration hydrogen-containing gas is room temperature or higher and 300° C. or lower and a gas volume of the hydrogen gas in the high-concentration hydrogen-containing gas is 200 Nm/t or more and 500 Nm/t or less;'}{'sup': '3', 'a condition in which the blowing temperature of the high-concentration hydrogen-containing gas is higher than 300° C. and 600° C. or lower and the gas volume of the hydrogen gas in the high-concentration hydrogen-containing gas is 145 Nm/t or more;'}{'sup': '3', 'a condition in which the blowing temperature of the high-concentration hydrogen-containing gas is higher than 600° C. and 900° C. or lower and the gas volume of the high-concentration hydrogen-containing gas is 125 Nm/t or more;'}{'sup': '3', 'a condition in which ...

고로가스의 분리방법 및 장치

고로로부터 배출되는 고로가스를 2단 가스분리정제장치를 사용하여 각종 성분을 포함하는 가스마다 분리한다. 고로가스를, 먼저 1단째의 가스분리정제장치에 의해, H 2 , N 2 , 및 불가피적 불순물 가스 성분으로 이루어지는 가스와, N 2 , 및 불가피적 불순물 가스 성분으로 이루어지는 가스와, N 2 , CO, CO 2 및 불가피적 불순물 가스 성분으로 이루어지는 가스와, CO, CO 2 및 불가피적 불순물 가스 성분으로 이루어지는 가스로 분리한다. 다음으로, 이들의 분리 가스 중, CO, CO 2 및 불가피적 불순물 가스 성분으로 이루어지는 가스를, 2단째의 가스분리정제장치에 의해, CO 및 불가피적 불순물 가스 성분으로 이루어지는 가스와, CO 및 불가피적 불순물 가스 성분으로 이루어지는 가스와, CO, CO 2 및 불가피적 불순물 가스 성분으로 이루어지는 가스로 분리한다.

Method and system for processing furnace gas for the purpose of returning it to a shaft furnace, in particular a pressure furnace

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Способ производства синтез-газа в цикле работы металлургического завода

Изобретение относится к области металлургии и может быть использовано при производстве синтез-газа, при котором осуществляют смешивание части колошникового газа доменной печи, и/или части конвертерного газа, и/или части коксового газа с образованием по меньшей мере двух потоков полезного газа. Первый поток полезного газа образуют из смеси по меньшей мере двух потоков газа: колошникового газа доменной печи, конвертерного газа и коксового газа, второй поток полезного газа – из конвертерного газа, или колошникового газа доменной печи, или из смеси конвертерного газа и колошникового газа доменной печи, причем из полученного первого потока полезного газа получают при кондиционировании первый синтез-газ, содержащий в качестве основных компонентов СО и H 2 или N 2 и Н 2 , а из второго потока образуют свободный от H 2 газ, содержащий в качестве основного компонента СО. Изобретение позволяет создать способ производства синтез-газа в цикле работы металлургического завода, с помощью которого возможно наиболее полное использование в производственных процессах сырых газов в разных объемах и с разным составом. 25 з.п. ф-лы, 1 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 661 688 C1 (51) МПК C21B 5/06 (2006.01) C21C 5/38 (2006.01) F27D 17/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C21B 5/06 (2006.01); C21C 5/38 (2006.01); F27D 17/00 (2006.01) (21)(22) Заявка: 2016127975, 11.12.2014 (24) Дата начала отсчета срока действия патента: Дата регистрации: 19.07.2018 12.12.2013 DE 10 2013 113 933.7 (45) Опубликовано: 19.07.2018 Бюл. № 20 (73) Патентообладатель(и): ТИССЕНКРУПП АГ (DE) (85) Дата начала рассмотрения заявки PCT на национальной фазе: 12.07.2016 (56) Список документов, цитированных в отчете о поиске: EP 244551 A1, 11.11.1987. EP 200880 A2, 17.12.1986. US 2006/0027043 A1, 09.02.2006. RU 2353036 C1, 20.04.2009. (86) Заявка PCT: 2 6 6 1 6 8 8 R U (87) Публикация заявки PCT: WO 2015/086151 (18.06.2015) C 1 C 1 EP ...

Sistema e processo de dispersao

Apparatus for feeding and burning additional fuel in shaft furnace

1473942 Shaft furnace operation SKF INDUSTRIAL TRADING & DEVELOPMEMT CO BV 20 March 1974 [26 March 1973] 12377/74 Heading C7 In a shaft furnace employing a blast of oxidizing gas together with injection of oil, coal or coke at tuyere level, the blast is heated by passing at least a part of it through a plasma burner, the latter possibly being located in a conduit leading to the bustle pipe, or individual burners being located adjacent to each tuyere. In the embodiment of Fig. I a part of the (preferably pre-heated) blast supplied through blast main 5 is diverted through plasma unit 11 to which cold air can also be admitted through conduit 13 for temperature control. In an alternative form shown in Fig. 2 a part of the blast flowing from bustle pipe 16 to tuyere 14 is diverted through pipe 17 through the plasma unit 18 to which cold air may also be supplied through pipe 17a. Hydrocarbon or other fuel is injected into the heated blast through pipe 19, or alternatively may be added through orifices surrounding the plasma unit discharge outlet, Fig. 3 (not shown).

Cooling Apparatus for Furnace Wall having Castable Supplying Function

본 발명은 고로(BLAST FURNACE)의 노벽에 설치되는 냉각반(Cooling Plate)에 관한 것으로, 보다 상세하게는 고로 내부에 설치되어 있는 고로 내화물의 사용 수명을 연장시킬 수 있도록 냉각반의 내부는 냉각수를 공급하여 고로 벽체를 냉각하도록 하면서도 다른 한편으로는 고로의 외부에서 냉각반의 표면 바깥쪽으로 부정형의 내화물 (Castable)을 골고루 압입할 수 있도록 함으로써 고로 보호기능을 더욱 강화시킨 냉각반에 관한 것이다.  The present invention relates to a cooling plate installed on a furnace wall of a blast furnace (BOOL FURNACE), and more specifically, to the inside of the cooling plate to provide a cooling water to extend the service life of the blast furnace refractory installed in the blast furnace. The present invention relates to a cooling panel that further enhances blast furnace protection by allowing the blast furnace wall to be cooled while also allowing the indentation of irregular refractory (Castable) evenly from the outside of the blast furnace to the outside of the surface of the cooling panel. 본 발명의 고로벽 냉각 및 내화물 주입용 냉각반은, The blast furnace wall cooling of the present invention and refractory injection plate, 철피와 내화벽으로 이루어진 고로의 노벽이 과열로 손상되지 않도록 보호하는 냉각반에 있어서, In the cooling panel which protects the furnace wall of the blast furnace which consists of a shell and a fireproof wall from damage by overheating, 상기 고로 둘레의 노벽에 형성된 개구부를 통하여 노벽 속에 안착되는 냉각반 본체와, A cooling panel body seated in the furnace wall through an opening formed in the furnace wall around the blast furnace, 상기 냉각반 본체의 내부에 형성된 냉각수 유로와, A cooling water flow path formed inside the cooling panel main body, 상기 냉각수 유로로 냉각수를 주입시키도록 노벽 외부에서 상기 냉각수 유로와 연결된 냉각수 유입구와, A cooling water inlet connected to the cooling water passage outside the furnace wall to inject cooling water into the cooling water passage; 상기 냉각수 유입구를 통하여 주입된 냉각수가 상기 냉각수 유로를 거친 후 냉각반의 외부로 빠져 나오도록 노벽 외부에서 상기 냉각수 유로와 연결 설치된 냉각수 출구와, A cooling water outlet installed in connection with the cooling water flow path from the outside of the furnace wall so that the cooling water injected through the cooling water inlet passes through the cooling water flow path and then exits to the outside of the cooling ...

Сборка плита и кирпич и способ ее образования

Изобретение относится к производству и укладки кирпичей. Сборка плита/кирпич, которая включает в себя: плиту (12) с множеством ребер (32) и множеством каналов (37), на передней поверхности которой находится первое отверстие каждого канала; и множество кирпичей (18), причем каждый кирпич вставляется во множество каналов (37) через первое отверстие в положение, которое достигается за счет поворачивания кирпича, частично установленного в канал таким образом, чтобы одна или более частей кирпича хотя бы частично входили в контакт с одной или более поверхностями канала и/или первого из множества ребер, и в котором кирпич блокируется от выпадения из канала через первое отверстие в результате линейного движения без поворачивания. Изобретение позволяет повысить срок использования футеровки, простоту ремонта. 5 н. и 50 з.п. ф-лы, 12 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 541 086 C2 (51) МПК F23M 5/00 (2006.01) F27D 1/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2012104355/06, 08.07.2010 (24) Дата начала отсчета срока действия патента: 08.07.2010 (72) Автор(ы): СМИТ Тодд Г. (US) (73) Патентообладатель(и): БЕРРИ МЕТАЛ КАМПАНИ, США (US) Приоритет(ы): (30) Конвенционный приоритет: R U 08.07.2009 US 61/223,745; 05.08.2009 US 61/231,477 (43) Дата публикации заявки: 20.08.2013 Бюл. № 23 (56) Список документов, цитированных в отчете о поиске: US 5117604 A, 02.06.1992. US 2009126306 A1, 21.05.2009. US 6363868 B1, 02.04.2002. US 3763796 A, 09.10.1973. RU 2088836 C1, 27.08.1997 (86) Заявка PCT: US 2010/041414 (08.07.2010) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 08.02.2012 (87) Публикация заявки PCT: 2 5 4 1 0 8 6 WO 2011/005997 (13.01.2011) R U 2 5 4 1 0 8 6 (45) Опубликовано: 10.02.2015 Бюл. № 4 Адрес для переписки: 107061, Москва, Преображенская площадь, 6, ООО "Вахнина и Партнеры" (54) СБОРКА ПЛИТА И КИРПИЧ И СПОСОБ ЕЕ ОБРАЗОВАНИЯ (57) Реферат: Изобретение относится к ...

Комплекс установок для производства стали и способ эксплуатации комплекса установок

Изобретение относится к металлургии. Технический результат – повышение экономичности производства стали. Комплекс установок для производства стали содержит доменную печь для производства чугуна, конвертерную сталеплавильную установку для производства сырой стали и газопроводную систему для газов, выделяющихся при производстве чугуна и/или при производстве сырой стали. Согласно изобретению комплекс установок снабжен подключенной к газопроводной системе химической установкой или биотехнологической установкой, а также накопителем энергии для покрытия по меньшей мере части потребности электрического тока для комплекса установок. 8 н. и 19 з.п. ф-лы, 2 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 670 513 C1 (51) МПК F27D 17/00 (2006.01) C21B 5/06 (2006.01) C21C 5/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F27D 17/00 (2006.01) (21)(22) Заявка: 2016128079, 11.12.2014 (24) Дата начала отсчета срока действия патента: Дата регистрации: 23.10.2018 12.12.2013 DE 10 2013 113 950.7 (45) Опубликовано: 23.10.2018 Бюл. № 30 (73) Патентообладатель(и): ТИССЕНКРУПП АГ (DE) (85) Дата начала рассмотрения заявки PCT на национальной фазе: 12.07.2016 (56) Список документов, цитированных в отчете о поиске: EP 2657215 A1, 30.10.2013. DE 102011077819 A1, 20.12.2012. WO 2011018124 A1, 17.02.2011. RU 2353659 C2, 27.04.2009. WO 2010/136313 A1, 02.12.2010. (86) Заявка PCT: 2 6 7 0 5 1 3 R U (87) Публикация заявки PCT: WO 2015/086152 (18.06.2015) C 1 C 1 EP 2014/003318 (11.12.2014) 2 6 7 0 5 1 3 Приоритет(ы): (30) Конвенционный приоритет: R U 11.12.2014 (72) Автор(ы): АХАЦ, Райнхольд (DE), ВАГНЕР, Йенс (DE), ОЛЕС, Маркус (DE), ШМЁЛЕ, Петер (DE), КЛЯЙНШМИДТ, Ральф (DE), МАЙСНЕР, Кристоф (DE), БРЕДЕМЕЙЕР, Нильс (DE), ФЁЛЬКЛЬ, Йоханнес (DE) Адрес для переписки: 109012, Москва, ул. Ильинка, 5/2, ООО "Союзпатент" (54) КОМПЛЕКС УСТАНОВОК ДЛЯ ПРОИЗВОДСТВА СТАЛИ И СПОСОБ ЭКСПЛУАТАЦИИ КОМПЛЕКСА УСТАНОВОК (57) Реферат: Изобретение относится ...

Patent JPS5933163B2

다단식 연소시스템의 다방향 애프터-에어포트

본 발명은 다단식 연소시스템내에서 용광로로의 공기유동을 제어하는 다방향 애프터-에어포트(after-airport)에 관한 것으로, 상호 수직하게 정위된 여러 세트의 루버(louver) 또는 바람문이 구비되어 연소 공기유동방향을 보다 잘 제어하게 된다.

Method for remote control of safety of operational actions on electrical installation and software and hardware system for its implementation

FIELD: electric power engineering. SUBSTANCE: method for remote control of safety of operations on an electrical installation, based on generation of data on the state of the monitored electrical installation, data transmission to the dispatching control center and making the safety decision on the controlled electric installation, wherein contact position signals and/or signals on presence or absence of people in at least one monitored area are determined by analyzing images obtained from at least one surveillance camera, and transmitting at least one communication channel to the dispatching control center, and the decision on safety of performance of operative actions on the controlled electric installation is accepted by comparison of signals of position of contacts and/or signals on presence or absence of people in at least one controlled zone. Method is realized by software and hardware system. EFFECT: technical result consists in improvement of reliability and efficiency of remote control of safety of operational actions on electric installation. 14 cl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 732 484 C2 (51) МПК G08B 21/02 (2006.01) H01H 9/28 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК G08B 21/02 (2019.08); H01H 9/16 (2019.08); H01H 9/28 (2019.08); C21B 7/00 (2019.08); B21B 1/00 (2019.08) (21)(22) Заявка: 2018140821, 19.11.2018 19.11.2018 Дата регистрации: 17.09.2020 (43) Дата публикации заявки: 19.05.2020 Бюл. № 14 (56) Список документов, цитированных в отчете о поиске: RU 154170 U1, 20.08.2015. RU 2439163 C2, 10.01.2012. RU 2540810 C2, 10.02.2015. RU 2268497 C2, 20.01.2006. RU 176065 U1, 27.12.2017. RU 2632473 C1, 05.10.2017. EP 1113214 A1, 04.07.2001. (45) Опубликовано: 17.09.2020 Бюл. № 26 2 7 3 2 4 8 4 (54) СПОСОБ ДИСТАНЦИОННОГО КОНТРОЛЯ БЕЗОПАСНОСТИ СОВЕРШЕНИЯ ОПЕРАТИВНЫХ ДЕЙСТВИЙ НА ЭЛЕКТРОУСТАНОВКЕ И ПРОГРАММНО-АППАРАТНЫЙ КОМПЛЕКС ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ (57) Реферат: Группа изобретений ...

高炉用炉口金物

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

ベルレス式装入装置による堅型炉への原料装入方法

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

分级燃烧系统的多向二次风口

一种分级燃烧系统中控制空气流入炉子的多向二次风口具有多组通风窗或调节风门，它们彼此相垂直地取向，因而可改善燃烧气流方向的控制。

Method and apparatus for supplying blast to blast furnace

FIELD: metallurgy of iron. SUBSTANCE: invention relates to a method and apparatus for supplying blast to a blast furnace. Apparatus for supplying blast to blast furnace (1) comprises a plurality of hot blast stoves (4, 5, 6), each stove comprising a cold blast inlet, a fuel inlet, an air supply inlet, a hot blast outlet, and one or more waste gas outlets, waste heat recovery unit (30) connected to a fuel supply for transferring recirculation top gas to a recovery unit, comprising a connecting line between the blast furnace and the recovery unit, the recovery unit being connected to the waste gas outlets of the stoves, directly connected to the fuel inlets of the stoves and is connected to the cold blast inlets of the stoves, a compressor connecting the waste gas outlets of the stoves to the cold blast inlets of the stoves, whereby the waste gas from one stove (5) is supplied through the waste heat recovery unit and the compressor as a cold blast to another stove (4). EFFECT: invention provides a reduction in the amount of waste gas released into the atmosphere and efficient use of resources. 11 cl, 6 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 659 540 C2 (51) МПК C21B 5/06 (2006.01) F27D 17/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C21B 5/06 (2006.01); F27D 17/00 (2006.01) (21)(22) Заявка: 2015129695, 10.12.2013 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): ПРАЙМЕТАЛЗ ТЕКНОЛОДЖИЗ, ЛИМИТЕД (GB) Дата регистрации: 02.07.2018 21.12.2012 GB 1223135.3 (43) Дата публикации заявки: 30.01.2017 Бюл. № 4 137407 A, 25.08.1982. JP 2012-031495 A, 16.02.2012. WO 2011/048045 A1, 28.04.2011. US 20100146982 A1, 17.06.2010. RU 2277127 C1, 27.05.2006. (45) Опубликовано: 02.07.2018 Бюл. № 19 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 21.07.2015 2 6 5 9 5 4 0 (56) Список документов, цитированных в отчете о поиске: US 4877013 A, 31.10.1989. JPS 57- Приоритет(ы): (30) ...

Method of purifying and concentrating blast-furnace gas

method for metal production and apparatus.

Multiple pulse generator

각 펄스의 소정 주기에서의 특정 전압 레벨의 지속 시간을 저장하기 위한 다수개의 타임 슬롯 레지스터, 다수개의 펄스들의 소정 주기에서 각 펄스 전압 레벨의 지속 시간에 대응하는 특정 전압 레벨의 상태 신호를 각 지속 시간 별로 저장하기 위한 펄스 상태 저장부, 펄스 상태 저장부에 저장된 상태 신호들 중 소정 타이밍에 대응되는 신호들을 출력하는 멀티플렉서, 외부에서 입력되는 클록 신호와 타임 슬롯 레지스터에 저장된 지속 시간을 다운 카운트하여 다수개의 타임 슬롯 레지스터에 각각 저장된 지속 시간이 만료되면 소정의 만료 지시 신호를 출력하며 다음 타임 슬롯 레지스터에 저장된 지속 시간을 다운 카운트하는 카운터부, 및 카운터부에서 출력된 만료 지시 신호에 응답하여 멀티플렉서의 출력을 제어하며, 만료 지시 신호에 응답하여 타임 슬롯 레지스터에 저장된 값들 중 다음 순서로 카운트할 지속 시간 값을 카운터부로 출력하도록 제어하는 제어부를 포함하는 다중 펄스 생성기가 개시된다. A plurality of time slot registers for storing a duration of a specific voltage level in a predetermined period of each pulse, each duration being a status signal of a specific voltage level corresponding to the duration of each pulse voltage level in a predetermined period of a plurality of pulses A pulse state storage unit for storing the data, a multiplexer outputting signals corresponding to a predetermined timing among the state signals stored in the pulse state storage unit, a plurality of down counts the durations stored in an external clock signal and a time slot register. When the durations respectively stored in the time slot register expire, a predetermined expiration instruction signal is output, and a counter unit for down counting the duration time stored in the next time slot register, and the output of the multiplexer in response to the expiration instruction signal output from the counter unit are output. Control in response to the expiration indication signal. Of the values stored in the slot register being a multi-pulse generator to a control unit for controlling to output the time-to-live value to be counted in the following order: a counter portion is provided. 다중 펄스 Multiple pulses

Method for operating blast furnace

FIELD: technological processes.SUBSTANCE: invention relates to a method for producing pig iron in a blast furnace. Method includes loading iron ore and coke from the top of the furnace, injecting coal dust into the furnace through a conventional tuyere, injecting gas containing hydrogen and/or hydrocarbon, through the usual lance together with coal dust, removing carbon dioxide and water vapor from the blast furnace exhaust gas from the top of the furnace with injection of the produced gas through the shaft lance of the furnace and injection of the furnace's top gas through a conventional lance without heating thereof, the blast of the usual lance is enriched with oxygen, and the oxygen enrichment is not less than 10 % and not more than Y % according to the following formula: Y=0.079×CH+32, where CHdenotes the amount of methane, vol.%, in the gas blown through the usual lance.EFFECT: sharp reduction in COemissions and stable iron production over a long period of time using an industrial blast furnace.7 cl, 10 dwg, 6 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 679 817 C2 (51) МПК C21B 5/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C21B 5/00 (2018.08) (21)(22) Заявка: 2016132180, 06.01.2015 (24) Дата начала отсчета срока действия патента: Дата регистрации: (85) Дата начала рассмотрения заявки PCT на национальной фазе: 08.08.2016 (56) Список документов, цитированных в отчете о поиске: JP 2009221547 A, 01.10.2009. JPS Приоритет(ы): (30) Конвенционный приоритет: 07.01.2014 JP 2014-000901 (43) Дата публикации заявки: 16.02.2018 Бюл. № 473607 A, 22.02.1972 . JP 2011225969 A, 10.11.2011. EP 2543743 A1, 09.01.2013. RU 2277127 C1, 27.05.2006. (86) Заявка PCT: JP 2015/050185 (06.01.2015) (87) Публикация заявки PCT: R U 2 6 7 9 8 1 7 WO 2015/105107 (16.07.2015) Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) СПОСОБ ЭКСПЛУАТАЦИИ ДОМЕННОЙ ...

METHOD AND INSTALLATION FOR SUBMIT BLOWING IN A DOMAIN FURNACE

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2015 129 695 A (51) МПК C21B 5/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015129695, 10.12.2013 (71) Заявитель(и): ПРАЙМЕТАЛЗ ТЕКНОЛОДЖИЗ, ЛИМИТЕД (GB) Приоритет(ы): (30) Конвенционный приоритет: 21.12.2012 GB 1223135.3 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 21.07.2015 R U (43) Дата публикации заявки: 30.01.2017 Бюл. № 04 (72) Автор(ы): ДЖИЧ Пол Марк (GB) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2014/095494 (26.06.2014) R U (54) СПОСОБ И УСТАНОВКА ДЛЯ ПОДАЧИ ДУТЬЯ В ДОМЕННУЮ ПЕЧЬ (57) Формула изобретения 1. Установка для подачи дутья в доменную печь, причем установка включает многочисленные подогреватели горячего дутья, причем каждый подогреватель включает подвод холодного дутья, подвод топлива, воздухоподвод, отвод горячего дутья, и один или более отводов отходящего газа; причем установка дополнительно включает рекуператор отходящего тепла, соединенный с подачей топлива, отводы отходящего газа подогревателя, подводы топлива и подводы холодного дутья; причем отводы отходящего газа подогревателя соединены с подводами холодного дутья через компрессор, посредством чего отходящий газ подогревателя из одного подогревателя подается, через рекуператор отходящего тепла и компрессор, в качестве холодного дутья в еще один подогреватель. 2. Установка по п. 1, причем установка дополнительно включает вентиляционную трубу для отходящего газа между рекуператором отходящего тепла и подводом холодного дутья. 3. Установка по п. 1 или 2, причем установка дополнительно включает вентилятор отходящего газа между рекуператором отходящего тепла и подводом холодного дутья. 4. Установка по п. 3, в которой компрессор размещен между вентилятором и подводом холодного дутья. 5. Установка по п. 1, причем установка дополнительно включает регенератор для регенерации СО из дутья, прежде чем оно будет подано в доменную печь. Стр.: 1 A 2 0 1 5 1 2 9 6 9 5 A Адрес ...

Breathability measuring machine and sintering equipment

高炉炉顶料罐均压放散煤气净化、利用系统及工艺

本发明公开一种高炉炉顶料罐均压放散煤气净化、利用系统及工艺，主要针对现有技术中对放散煤气回收利用不充分而设计。本发明高炉炉顶料罐均压放散煤气净化、利用系统，包括净化装置、所述净化装置连接的加压装置以及均压装置，所述净化装置包括与料罐连接的旋风除尘器以及布袋除尘器；所述加压装置包括煤气加压装置以及煤气储罐；所述均压装置包括与料罐相连的氮气进口。本发明高炉炉顶料罐均压放散煤气净化、利用工艺，至少包括放散煤气的净化过程、放散煤气的加压过程以及放散煤气的均压过程。本发明高炉炉顶料罐均压放散煤气净化、利用系统及工艺，能够充分回收利用放散煤气，实现放散煤气和除尘灰的零排放，回收利用效率高。

Method for preparation of ammonia gas and co2 for urea synthesis

FIELD: chemistry.SUBSTANCE: invention relates to the production of ammonia gas and COfor the synthesis of urea. Disclosed is a method in which process gas (2) containing nitrogen, hydrogen and carbon dioxide as main components is obtained from smelting gas (1) consisting of a gas mixture formed from blast furnace gas and converter gas. Further, said process gas (2) is separated to obtain gas stream (6) containing CO, and gas mixture (5) consisting essentially of Nand H. Then from said gas mixture (5), using ammonia synthesis (7), gaseous ammonia (8) is obtained, which is suitable for urea synthesis (9), and from said gas stream (6) containing CO, COwith purity and in an amount suitable for urea synthesis (9), is collected.EFFECT: technical result consists in providing an efficient method for producing gaseous starting materials for synthesis of urea.15 cl, 1 dwg, 1 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 683 744 C1 (51) МПК C01C 1/04 (2006.01) C07C 273/04 (2006.01) C07C 273/10 (2006.01) B01D 53/62 (2006.01) B01D 53/047 (2006.01) C21B 7/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C01C 1/04 (2019.02); C07C 273/04 (2019.02); C07C 273/10 (2019.02); B01D 53/62 (2019.02); B01D 53/047 (2019.02); C21B 7/00 (2019.02) (21)(22) Заявка: 2016127978, 11.12.2014 11.12.2014 Дата регистрации: 01.04.2019 (56) Список документов, цитированных в отчете о поиске: JP 2002161303 A1, 04.06.2002. SU 12.12.2013 DE 10 2013 113 980.9 1064863 A1, 30.12.1983. CN 102101644 A1, 22.06.2011. EP 1031534 A1, 30.08.2000. RU 2283832 C2, 20.09.2006. RU 2254331 C1, 20.06.2005. (45) Опубликовано: 01.04.2019 Бюл. № 10 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 12.07.2016 (86) Заявка PCT: 2 6 8 3 7 4 4 (73) Патентообладатель(и): ТИССЕНКРУПП АГ (DE) Приоритет(ы): (30) Конвенционный приоритет: R U (24) Дата начала отсчета срока действия патента: (72) Автор(ы): МАЙСНЕР Кристоф (DE), КРОТОВ Денис (DE), ФОН МОРШТАЙН Олаф (DE ...

Controlling method of temperature of blast furnace top gas

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Cyclon separator for blast-furnace gases

FIELD: metallurgy. SUBSTANCE: invention refers to metallurgy, particularly to design of cyclone separator for scrubbing blast-furnace gases. The cyclone separator consists of a cyclone chamber with a central axle and side, upper and lower walls, of an inlet channel coupled with its end to the side wall of the cyclone chamber in a specified position between the upper and lower walls, and of the central inlet channel running through the upper wall into the cyclone chamber. The cyclone separator contains an additional inlet channel connected with its end to the wall of the cyclone chamber at distance from the inlet channel around circumference. Each end of each inlet channel next to the side wall of the cyclone chamber is inclined downward to this wall at angle from 65° to 85° to the central axle of the cyclone chamber. EFFECT: high degree of blast furnace gases scrubbing. 3 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 397 819 (13) C2 (51) МПК B04C 5/04 (2006.01) B01D 45/12 (2006.01) C21B 7/22 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2008103275/02, 13.06.2006 (24) Дата начала отсчета срока действия патента: 13.06.2006 (73) Патентообладатель(и): ДАНИЕЛИ КОРУС ТЕКНИКАЛ СЕРВИСЕЗ БВ (NL) (43) Дата публикации заявки: 10.08.2009 2 3 9 7 8 1 9 (45) Опубликовано: 27.08.2010 Бюл. № 24 (56) Список документов, цитированных в отчете о поиске: US 3802164 A, 09.04.1974. DE 19920237 A1, 04.05.2000. FR 1395282 A, 09.04.1965. SU 856500 A1, 23.08.1981. 2 3 9 7 8 1 9 R U (86) Заявка PCT: EP 2006/005653 (13.06.2006) C 2 C 2 (85) Дата перевода заявки PCT на национальную фазу: 29.01.2008 (87) Публикация PCT: WO 2007/000242 (04.01.2007) Адрес для переписки: 129090, Москва, ул.Б.Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", пат.пов. А.В.Мицу, рег.№ 364 (54) ЦИКЛОННЫЙ СЕПАРАТОР ДЛЯ ДОМЕННЫХ ГАЗОВ (57) Реферат: Изобретение относится к области металлургии, в частности ...

Process for removing a nitrogen gas from mixture comprising n2 and co

N2 was sepd. from gas mixts. contg. CO and N2 by pressureswing adsorption by using >=2 adsorption columns contg. an adsorbent having selective adsorptivity for CO. Thus, 11.07 l converter gas contg. CO 88, CO2 2, N2 6.5, H2 3, and O2 0.5% was passed through the adsorption column contg. a modified mordenite-type zeolite. The recovered 5.15 l contd. CO 95, CO2 4.7, and N2 0.3%. Process partic. relates to the removal of N2 from blast furnaces or converter gas and there by seperates an easily adsorbable component from a poorly adsorbable component.

Apparatus for preheating gas

본 발명의 가스 예열 장치는 제 1 설비와 제 2 설비를 연결하고, 가스를 상기 제 1 설비로부터 공급받아 상기 제 2 설비를 향하여 유도하는 가스 유도부; 상기 가스 유도부를 에워싸는 가열 유도부; 및 상기 가열 유도부의 외주면 상에 설치되어, 상기 가스 유도부의 가스보다 높은 온도를 갖는 가열물질을 상기 가열 유도부의 내부에 공급하고 상기 가열 유도부의 내부로부터 배출시키는 가열물질 유도부를 포함하는 것을 특징으로 한다. 상기와 같은 가스 예열 장치는 하나의 설비로부터 다른 설비로 유도되는 가스를 가열하여 가스가 유도된 설비의 성능을 향상시킨다.

Device for repairing the bottom brick of furnace bottom

본 고안은 노저연와를 보수하는 장치에 관한 것으로, 보다 상세히는 고로의 노저철피에 설치된 압입니플의 응고된 압입제를 가열용해하여, 조업조건에 관계없이 부정형 내화물인 압입제를 원할하고, 안전하게 압입할수 있는 고로의 노저연와 보수장치에 관한 것이다. The present invention relates to a device for repairing the furnace lead, and more specifically, by dissolving the solidified indenter of the indentation nipple installed in the furnace shell of the blast furnace, and wants the indenter which is an irregular refractory material regardless of operating conditions, and securely indented It is about the furnace smoke and repair device of the blast furnace. 본 고안은 노내의 용융물을 배출하는 출선구(5)와, 내측면에 카본연와(3)가 축조된 철피(6)와, 노저부의 온도를 체크하기 위한 다수개의 온도센서(4) 및 압입제가 압입되는 복수개의 압입니플(9)을 갖는 고로설비에 있어서, 상기 압입니플(9)의 외부면을 감싸는 가열용해관(11)에 고온의 열원이 공급되는 공급구(12)와 열교환된 열원이 배출되는 배출구(13)를 각각 일체로 갖추어 응고된 압입제를 용해하는 가열용해부(10); 상기 공급구(12)에 착탈이 용이하도록 조립되고, 열원공급량을 제어하는 조절밸브(23)를 갖는 열원공급라인(22)과 연설되는 퀵조인트(21)를 갖는 열원공급부(20); 및, 상기 압입니플(9)의 개방단에 설치된 개폐밸브(39)의 개방시 압입제공급라인(31)을 통해 상기 압입니플(9)로 압입제를 강제 압입공급하는 압입제공급부(30);를 포함하는 고로 노저연와 보수장치를 제공한다. The invention devises a tap opening 5 for discharging the melt in the furnace, an iron shell 6 in which carbon lead 3 is formed on the inner side, a plurality of temperature sensors 4 and press-fit for checking the temperature of the bottom part. In a blast furnace installation having a plurality of press-fit nipples 9 to be press-fitted, the heat source heat exchanged with the supply port 12 is supplied with a high temperature heat source to the heating melting pipe 11 surrounding the outer surface of the press-fit nipple (9) A heating dissolving unit 10 having the discharge ports 13 discharged integrally therein to dissolve the solidified indenting agent; A heat source supply unit (20) having a quick joint (21) and a heat source supply line (22) which are assembled to be easily attached to and detached from the supply port (12) and have a control valve (23) for controlling the amount of heat source supply; And a press-fitting agent supply part 30 forcing the press-fitting supply to ...

DISTRIBUTION SYSTEM AND PROCEDURE.

Noise filter

내용 없음.

Apparatus and method for dust collecting of blast furnace gas

According to an embodiment of the present invention, an apparatus for collecting dust of blast furnace gas comprises: a hopper body having a filter member in an internal space to filter dust contained in blast furnace gas; a supply pipe supplying blast furnace gas to the internal space; a purge pipe supplying purge gas to the internal space; an oxygen concentration measuring instrument measuring oxygen (O_2) concentration of gas flowing into the internal space to transmit an oxygen concentration signal; and a control unit controlling a supply amount of the blast furnace gas and the purge gas in accordance with the oxygen concentration signal.

Blast furnace having temporary tapping hole and method of performing iron tapping of blast furnace using the same

본 발명은, 프리캐스트 내화물 슬리브로 형성된 임시 출선구를 포함하는 고로의 출선 처리 방법을 제공한다. 본 발명의 일실시예에 따른 고로의 출선 처리 방법은, 임시 출선구의 형성 위치에서 고로 본체의 외부 금속 구조체를 제거하여 내부 내화물 구조체를 노출하는 내부 내화물 구조체 노출 단계; 상기 노출된 내부 내화물 구조체를 제거하여 상기 내부 내화물 구조체를 관통하는 관통홀을 형성하는 관통홀 형성 단계; 및 상기 관통홀 내에 프리캐스트 내화물 슬리브를 삽입하여 상기 임시 출선구를 형성하는 단계;를 포함하되, 상기 관통홀 형성 단계는, 상기 내부 내화물 구조체를 관통하고 제1 직경을 가지는 제1 개구부를 형성하는 단계; 및 상기 외부 금속 구조체에 인접하여 위치하고, 상기 제1 개구부의 주위에 상기 제1 직경에 비하여 큰 제2 직경을 가지는 제2 개구부를 형성하는 단계;를 포함한다. The present invention provides a method for processing an exit of a blast furnace including a temporary exit port formed of a precast refractory sleeve. According to an embodiment of the present invention, there is provided a method of processing an exit path of a blast furnace, comprising: an inner refractory structure exposing step of removing an outer metal structure of a blast furnace main body at a position where a temporary exit port is formed to expose an inner refractory structure; A through hole forming step of removing the exposed inner refractory structure to form a through hole passing through the inner refractory structure; And forming a temporary exit port by inserting a precast refractory sleeve in the through-hole, wherein the through-hole forming step includes forming a first opening through the inner refractory structure and having a first diameter step; And forming a second opening located adjacent to the outer metal structure and having a second diameter larger than the first diameter around the first opening.

Closing apparatus of blast furnace crack

본 고안은 용광로 본체의 노후화에 따라 발생되는 철피의 크랙(Crack)부위를 폐쇄하도록 구성된 용광로의 철피 크랙 봉합장치에 관한 것이다. The present invention relates to a crack crack sealing device of the furnace configured to close the crack (cracks) portion of the bar generated by the aging of the furnace body. 본 고안은 용광로 철피(2)의 크랙(6) 부위를 덮는 폐쇄판(11)과; 상기 폐쇄판(11)을 압착하는 고정판(10)을 포함하여 구성되어지되, 상기 폐쇄판(11)은 내면의 가이드 바(13)에 내장된 석면 패드(12)를 통해 상기 철피(2)의 크랙(6) 부위에 밀착되는 것을 특징으로 한다. The present invention includes a closing plate (11) for covering the crack (6) portion of the furnace shell 2; It comprises a fixed plate 10 for pressing the closing plate 11, the closing plate 11 of the steel shell 2 through the asbestos pad 12 embedded in the guide bar 13 of the inner surface It is characterized in that it is in close contact with the crack (6). 상기와 같은 본 고안의 구성과 작용에 의하여 용광로의 철피에 발생된 크랙을 신속하거 간편하게 폐쇄시킴에 따라 고로조업의 안정성이 도모되고, 안전재해의 예방과 함께 설비 사고가 방지되는 효과가 제공된다. By the construction and operation of the present invention as described above, by closing the cracks generated in the steel bar of the blast furnace quickly or simply, the stability of the blast furnace operation is promoted, it is provided with the effect of preventing safety accidents and equipment accidents.

Method for cross construction of blast furnace shell and water-cooled furnace bottom

本发明公开了一种高炉炉壳与水冷炉底交叉施工的方法，属于高炉大修领域，工序为：高炉炉壳拆除后，在风口平台上设置分层平台，分层平台下进行水冷炉底施工时，分层平台上组装风口带以下部分的炉壳，在炉底封板及高炉炉壳底板就位后，马上进行风口带以下炉壳的就位找正，再恢复分层平台，平台上进行风口带及以上炉壳的组装，平台下可进行炉底封板、高炉炉壳底板与第一带炉壳间的横缝、底板与第一带炉壳间的加强筋板的焊接，焊接完成后，检查已经安装的炉壳最上一圈的标高，符合要求后，拆除分层平台，安装风口带及以上部分的炉壳。应用本发明能够有效地压缩施工的主线工期，具有很好的经济效益和社会效益，可在各类高炉大修时使用，实用性强。

A cooler for the end of life type in furnace

본 발명은 고로의 노벽에 설치되는 노말기형 냉각반에 관한 것이다. 본 발명은 철피(105)와 내화벽돌(104)로 구성되는 고로(100)의 노벽에 복수개 갖추어져 노체를 냉각하는 냉각반에 있어서, 상기 내화벽돌(104)에 매몰되고, 냉각수가 순환공급되는 냉각관(3)을 갖추어 노벽의 열부하를 감소시키는 냉각몸체(2)와, 상기 냉각몸체(2)의 선단수직면(2a)에 설치되고, 내화물의 결합력을 향상시킬 수 있도록 열십자형태로 갖추어지는 연결고리(5)와 일체로 압축성형되는 헤드부(3)를 포함하여, 고로의 노벽을 구성하는 내화벽돌이 노말기에 손상되어 노벽의 두께 얇아질 때 교체되어 강하하는 장입물과 상승하는 가스기류로부터 냉각반을 보호하여 용손을 방지하고, 노벽 보수시 보수재의 부착이 원활하게 수행할 수 있는 효과가 얻어진다. 냉각반, 냉각몸체, 내화물, 헤드부, 내화벽돌