Baking gun showerhead and oxygen-enriched combustion method using same

The present invention provides a sprayer for a baking gun, and an oxygen enrichment combustion method using the sprayer. The sprayer comprises an outer layer and an inner layer which are mutually sealed by welding. The outer layer is of a housing structure and provided with a gas-jet tube. The inner layer is sleeved inside the outer layer, and a through hole is arranged thereon. The gas-jet tube of the outer layer traverses the through hole and is partly exposed outside the inner layer. The inner layer is also provided with an igniter jet orifice and an oxygen jet orifice. When the sprayer is used, the central fuel gas is fed at a low speed from the gas-jet tube. 90 to 95 percent of the total amount of the oxygen enrichment gas is sprayed at a high speed from the oxygen jet orifice, and only 5 to 10 percent remains adjacent to the fuel. The sprayer for the baking gun is simple and convenient in manufacture and reliable in use, and the novel oxygen enrichment combustion method can effectively ...

METHOD FOR PRODUCING BIG CANDLE

The big candle of the present invention is made of paraffin wax, Chinese herbs and candle core. For the candle body, cylindric and conical shapes are adopted. The cylindric candle body is divided into three segments of the same size. The upper segment has a candle core, while the middle and lower segments have holes, but no cores. The conical candle has a structure of coarse upper end and fine lower end. The method of making big candle is to mix proportionally the ground powder of Chinese herbs dried under sun light and melted paraffin wax, then stirred evenly and poured into a candle mould.

Selenium-rich and disease and pest resistant compound fertilizer and manufacturing process thereof

The invention discloses selenium-rich and disease and pest resistant compound fertilizer. The selenium-rich and disease and pest resistant compound fertilizer is prepared from the following raw materials: monopotassium phosphate, controlled release nitrogen, grass carbon, soybean meal, sasanqua cake, rapeseed meal, amino acid, zinc sulphate, copper sulphate, ferrous sulphate, borax, 5- nitroguaiacol sodium salt, SiO2 soil improvement agent, selenium-rich yeast, alpha-pimacol, VB, VC and citric acid. The selenium-rich and disease and pest resistant compound fertilizer is scientific and rigorous in formula and is biofertilizer with selenium nutrition, resistance to disease and pest and pollution-free (low residue) effect, and a technology is scientific, organic, non-toxic, green and environmental-friendly. The selenium-rich and disease and pest resistant compound fertilizer can enhance a plant immunological function system, promote mobility of immune cells, regulate specific and non-specific ...

Oxygen lance Spray nozzle

The invention relates to an oxygen lance spay nozzle which comprises an oxygen lance upper part, an oxygen lance middle part and an oxygen lance lower part; wherein a plurality of oxygen through holes area arranged at the end part of the oxygen lance upper part; a plurality of laval hole copper pillars are uniformly arranged on the end part of the oxygen lance upper part and form an air current channel with the oxygen through holes; the oxygen lance middle part is arranged in the middle part of the laval hole copper pillars; the oxygen lance lower part is arranged on the external side of the lower end part of the laval hole copper pillars; all parts are not integrally arranged; the centre line of the six laval hole copper pillars and the centre line of the oxygen lance upper part are arranged in 15-45 degree way; the laval hole copper pillars and the oxygen lance lower part are integrally arranged; the inner side of the lower end part of the laval hole copper pillars is provided with a ...

Model and detection method for anomaly detection in bridge incremental launching construction

The invention provides a model and a detection method for anomaly detection in bridge incremental launching construction, and the model comprises a data embedding module which is used for receiving input time series data and capturing the relation between the numerical features and vectors of the time series data, the encoding module is used for receiving the output of the data embedding module and extracting information; the projection module is used for receiving the output of the encoding module and changing the shape and size of the output; the reconstruction input layer is used for receiving the output of the projection module and performing simulation with the same structure on the received value; and the layer outputs a vector with the same size as the input time sequence data to serve as a predicted value of construction and reconstruction loss. According to the model for anomaly detection in bridge incremental launching construction and the detection method using the model, abnormal ...

LOTUS THRONE SHAPED CANDLESTICK

The candlestick in the form of a lotus flower is comprised of a candle holder and a lotus formed tray, which has three types: (A) number of petals on upper tray is less than that on lower tray, the size of petals on upper tray is also smaller; (B) nmber of petals on upper tray is less than that on lower tray, but the size of petals on upper tray is the smae as that on lower tray; (C) upper tray and lower tray have same number of petals but different sizes. The lower tray has three petal legs which form an angle of 120 deg with respect to the center of the tray, the candle holder is made up of H figured cylindrical grooves, the bottom of the grooves is made up of cross ribs and needle type holders thereon.

METHOD FOR PRODUCING BIRTHDAY CANDLE

The birthday candle of the present invention is made of paraffin wax and Chinese herbs. They are birthday candles for children, blessing candles for youth and longevity candles for the old. The birthday candles for children can be made into cylindric and conical forms with five colours respectively. The blessing candles for youth can be made into cylindric forms with normal red color. The longevity candles for the old can be made into cylindric forms with dark red color. The compounding method of birthday candles of the present invention is to mix the ground powders of Chinese herbs dried under sun light and melted paraffin wax, and then stirred evenly. Colouring agent may also be added in the mixture.

Formwork reserved hole device

The embodiment of the utility model discloses a hole reserving device for a template. The device comprises a template bottom die, a positioning sleeve, a positioning cover and a pull rod, the middle part of the pull rod is a smooth section with a smooth surface; a threaded section with a thread on the surface is arranged at the upper end of the pull rod corresponding to the positioning cover and the template bottom die; a positioning nut is arranged on the threaded section; a sleeve dismounting device is arranged on the smooth section; the sleeve dismounting device comprises an inner sleeve which is rotatably arranged on the smooth section in a penetrating manner; a middle sleeve is arranged outside the inner sleeve in a sleeving manner and can slide up and down; the middle sleeve is sleeved with an outer sleeve in a threaded mode. A plurality of pull-out rods are arranged on the outer sleeve, the pull-out rods are connected with the inner wall of the positioning cover, and a pull-outnut ...

Electronic device test system

The invention provides an electronic device test system. The electronic device test system operates in a computer, and used for carrying out production test on an electronic device connected with the computer. The operating modes of the electronic device comprise a system mode and a recovery mode. The system comprises a test interface providing module and a mode switching module, wherein the test interface providing module is used for providing a test interface on the computer, and the test interface comprises a mode switching button; and the mode switching module is used for responding to an operation of clicking on the mode switching button by an operator so as to generate a mode switching command, and then sending the mode switching command to the electronic devices by virtue of the computer, so that the electronic devices are subjected to system-mode and recovery-mode switching according to the mode switching command. According to the invention, when carrying out a production test on ...

Test case generation method and device, equipment and medium

The invention provides a test case generation method and device, equipment and a medium. A unique and reproducible test case set can be generated. The method comprises the following steps: acquiring a plurality of parameters and at least one parameter value corresponding to each parameter; according to a pre-trained first sorting model, sorting each parameter to obtain a first sorting, and for each parameter, sorting at least one parameter value corresponding to the parameter according to a pre-trained second sorting model to obtain a second sorting of the parameter value corresponding to the parameter; for the parameters corresponding to at least two parameter values, sequentially combining the parameter values of the parameters according to a first sequence corresponding to the parameters and a second sequence corresponding to the parameter values of the parameters to obtain a plurality of target parameter value combinations, a pair formed by any two parameter values only appears once ...

High-grade incense (pest repellant) and preparation method thereof

Ignition device for vacuum refining furnace

The invention discloses an ignition device for vacuum refining furnace with smart structure and stable quality. The ignition device is formed by the combination of an ignition head, a duct, a high-voltage ignition cable, an ignition transformer, and a lifting cylinder; the ignition head is firstly connected with the high-voltage ignition cable and then linked with the duct; the duct is an integrated seamless steel pipe; the ignition transformer is firstly connected with the high-voltage ignition cable and then linked with the duct. The device has the advantages that due to the integrated design of the ignition device, the clever structure is characterized by not needing centration, and successfully solves the problems of poor contact due to unideal centration when the imported similar equipment is installed on the steel-making site and the falling of an ignition pipe due to the jitter of equipment in the running process, thereby avoiding a series of losses; simultaneously, the installation ...

Backlight scheme generation method and device, equipment and storage medium

The invention provides a backlight scheme generation method and device, equipment and a storage medium, and relates to the technical field of display, the backlight scheme generation method is applied to a display device, the display device comprises a plurality of lamp beads and a plurality of integrated circuit chips, and the backlight scheme generation method comprises the steps that preset display device backlight partition parameters are acquired; determining a first number of integrated circuit chips according to the backlight partition parameters; according to the corresponding relation between the lamp beads and the integrated circuit chips, a layout scheme of the lamp beads and the integrated circuit chips is generated, and by means of the method, when the regional brightness of the display device is improved, the load of the display device is balanced, and the stability of the display device is guaranteed.

Baking gun showerhead and oxygen-enriched combustion method using same

The present invention provides a sprayer for a baking gun, and an oxygen enrichment combustion method using the sprayer. The sprayer comprises an outer layer and an inner layer which are mutually sealed by welding. The outer layer is of a housing structure and provided with a gas-jet tube. The inner layer is sleeved inside the outer layer, and a through hole is arranged thereon. The gas-jet tube of the outer layer traverses the through hole and is partly exposed outside the inner layer. The inner layer is also provided with an igniter jet orifice and an oxygen jet orifice. When the sprayer isused, the central fuel gas is fed at a low speed from the gas-jet tube. 90 to 95 percent of the total amount of the oxygen enrichment gas is sprayed at a high speed from the oxygen jet orifice, and only 5 to 10 percent remains adjacent to the fuel. The sprayer for the baking gun is simple and convenient in manufacture and reliable in use, and the novel oxygen enrichment combustion method can effectively ...

Sublance body

The invention discloses a sublance body which comprises an outer pipe, a center pipe, an inner pipe, a probe holding part, a cooling water inlet pipe, a cooling water outlet pipe and a probe compensating cable, wherein the inner pipe is sleeved in the center pipe; the center pipe is sleeved in the outer pipe; one end of the inner pipe and the center pipe are connected into a whole, and the other end of the inner pipe extends outwards after penetrating through the center pipe and the outer pipe; a clearance is arranged between both ends of the center pipe and the outer pipe and used for stretching during the thermal expansion of the center pipe and the outer pipe; the probe holding part is screwed from the lower part of the outer pipe and used for holding a probe; the cooling water inlet pipe and the cooling water outlet pipe are arranged at the upper part of the outer pipe, and an opening is arranged on the center pipe; accordingly, a space between the outer pipe and the center pipe and ...

Big-ridge and double-line buckwheat cultivation method

The present invention discloses a big-ridge and double-line buckwheat cultivation method and provides a relatively complete buckwheat cultivation method. The technical content, such as soil preparation, seed treatment, sowing, field management, pest control and the like, is standardized, and the sowing period is from the beginning of June to the middle of June; the seed consumption is 30-45 kg per hectare; big-ridge and double-line planting is adopted, the row distance is 45-50 mm, the interval between double rows is 8 mm, and 600,000-900,000 seedlings are conserved per hectare; 30-60 kg of urea, 60-120 kg of diammonium phosphate and 30-45 parts of potassium sulfate are applied to per hectare during sowing. The adoption of big-ridge and double-line planting is favorable for ventilation, light penetration and mechanized operation; with combination of scientific and reasonable matched cultivation measures, a good-quality and efficient buckwheat planting method is provided.

LONG INCENSE AND ITS PREN. METHOD

The tall incense of the present invention is made of 60 kinds of Chinese herbs, adhesive materials, water and incense cores. Its head is of a normal four-edged pyramid type, and its body of a normal eight-edged cylinder type. There is a passage in the middle part of its body, with a base incense trough at the bottom. The incense cores consist of many cotton threads. The method to make the tall incense is to dry 60 kinds of herbs under the sunlight and to grind them into powder. The powders of Chinese herbs, adhesive materials and water are mixed in a definite ration and homogenously mode into a semi-paste.

Test data construction method and device, equipment and medium

The invention relates to the technical field of data processing, in particular to a test data construction method and device, equipment and a medium, and aims to provide a scheme for improving the generation efficiency of test data. Dividing the to-be-processed data into at least one first test sequence and at least one second test sequence based on a screening condition corresponding to a test object of the test data; the first test sequence is a data segment meeting a screening condition in the to-be-processed data; for any first test sequence, encoding the first test sequence, and predicting a third test sequence corresponding to the first test sequence based on an encoding result; and respectively replacing the corresponding first test sequence in the to-be-processed data with each third test sequence to obtain target test data.

Gas cooler and mechanical type explosion -proof valve thereof

The utility model discloses a gas cooler and mechanical type explosion -proof valve thereof, have in it includes the valve pocket the valve body, be provided in the valve pocket and with the valve body in the wall connection the support ring, be provided the support ring top the apron and be used for the support ring and lap both and carry out stationary mounting in the vertical direction. When gas cooler is airtight, the inside negative pressure that is of air cooler, mechanical type explosion -proof valve also was airtight state this moment, the granule smoke and dust is piled up and is expanded in the inside waste gas of gas cooler appearing, and when blasting, mechanical type explosion -proof valve gap board was opened this moment, and gas cooler is inside to be put through with the external world, avoids the secondary occurence of failure, and processing is simple and convenient, strong adaptability, easily popularization.

Oxygen lance spray nozzle for converter

The invention discloses an oxygen lance spray nozzle for a converter, which is assembled at the air nozzle part of the rear end of an oxygen lance, and is characterized in that the oxygen lance spray nozzle comprises a spray nozzle main body communicated with the air nozzle part, a plurality of nitrogen spray pipes detachably spliced on the spray nozzle main body and a spiral vane device, whereina straight spray pipe and at least two side nozzles around the straight spray pipe are positioned in the center of the spray nozzle main body, the spiral vane device is a dish-shaped tray having a hollow cylinder with the rear end being closed, meanwhile, the upper end of the hollow cylinder is connected with the straight spray pipe in a sealing way, the lower end of the hollow cylinder is connected with the dish-shaped tray through a bearing, and 3 to 6 blade-shaped inclined steel sheets are arranged on the upper surface of the dish-shaped tray and rotate relative to the hollow cylinder. Through ...

Ignition burner of baking gun

The invention discloses an ignition burner of a baking gun, which comprises an igniting needle, a spray rod body and a gas nozzle connected into a whole through washers, igniting needle fixing bolts and fixing nuts. The spray rod body is a communicating pipe body formed by a first joint, a second joint, a third joint, a fourth joint and a fifth joint through screwed connection in sequence, the gas nozzle is sleeved on the fifth joint and stretches into the cavity of the fourth joint, and the side wall of the cavity of the fourth joint is provided with at least one air inlet; a Karwar hole structure is arranged in the cavity of the third joint; and the end part of the second joint, which is far away from the gas nozzle, is provided with a partition board part, and a plurality of through holes are evenly distributed in the partition board part. The ignition burner of the baking gun is made by respective processing and screwed connection and is convenient for the local improvement of the burner ...

Sublance body

The invention discloses a sublance body which comprises an outer pipe, a center pipe, an inner pipe, a probe holding part, a cooling water inlet pipe, a cooling water outlet pipe and a probe compensating cable, wherein the inner pipe is sleeved in the center pipe; the center pipe is sleeved in the outer pipe; one end of the inner pipe and the center pipe are connected into a whole, and the other end of the inner pipe extends outwards after penetrating through the center pipe and the outer pipe; a clearance is arranged between both ends of the center pipe and the outer pipe and used for stretching during the thermal expansion of the center pipe and the outer pipe; the probe holding part is screwed from the lower part of the outer pipe and used for holding a probe; the cooling water inlet pipe and the cooling water outlet pipe are arranged at the upper part of the outer pipe, and an opening is arranged on the center pipe; accordingly, a space between the outer pipe and the center pipe and ...

Time sequence prediction system and method for pile foundation construction state of rotary drilling rig in bridge construction

The invention provides a time sequence prediction system and method for a pile foundation construction state of a rotary drilling rig in bridge construction, and the system is based on an encoder-decoder architecture, the time sequence data of bridge construction firstly passes through a data encoding module to obtain encoded data, and then passes through an encoder to obtain encoded output; the encoding output of the encoder is used as one part of the input of the decoder, and the other part of the input of the decoder is the output of the whole model system and is output after being fed back and subjected to data encoding; the decoder is formed by stacking three decoding layers, and the output of the decoder is sent to the projection module to obtain the output of the whole model. According to the model system, the temperature, the rotating speed, the displacement, the inclination angle and the torque value of the drill bit in the later period of time can be predicted by collecting the ...

Oxygen gun water-cooling protective sleeve and method thereof

The invention discloses an oxygen gun water-cooling protective sleeve and a method thereof. The oxygen gun water-cooling protective sleeve is arranged on the furnace wall of a steel-making electric furnace, and comprises a water-cooling seat, wherein the water-cooling seat at least comprises a gun inserting hole, a water inlet, a water outlet and a cooling passage, the water inlet is arranged at one side of the gun inserting hole, the water outlet is arranged at the other side of the gun inserting hole, the water-cooling passage is connected with the water inlet and the water outlet, and the water-cooling passage is in snakelike wriggle arrangement. When the oxygen gun water-cooling protective sleeve is adopted, the shooting burning loss speed of an oxygen gun can be greatly reduced, so the cost is saved, the steel yield in unit time is increased, the processing is simple and convenient, and the popularization and the volume production can be easily realized.

Method for detecting taurine in compound amino acid injection

The invention relates to the technical field of analytical chemistry, and particularly discloses a method for detecting taurine in a compound amino acid injection, a high performance liquid chromatography and mass spectrometry combined method is adopted, the conditions of high performance liquid chromatography comprise that an EC-C18 chromatographic column is adopted, a mobile phase is composed of a mobile phase A and a mobile phase B, the mobile phase A is a formic acid solution, the mobile phase B is a sodium chloride solution, and the mobile phase C is a sodium chloride solution. A mobile phase B is an acetonitrile aqueous solution, elution is carried out according to a set program, and mass spectrum conditions comprise: an ion source: AJS-ESI; the scanning mode is MRM; the gas flow is 4-6 L/min; the gas temperature is 290 to 310 DEG C; the atomization gas pressure is 40 to 50 psi; the sheath temperature is 340-360 DEG C; and the sheath gas flow is 10-12L/min. Under the condition that ...

Ignition device for vacuum refining furnace

The invention discloses an ignition device for vacuum refining furnace with smart structure and stable quality. The ignition device is formed by the combination of an ignition head, a duct, a high-volThe invention discloses an ignition device for vacuum refining furnace with smart structure and stable quality. The ignition device is formed by the combination of an ignition head, a duct, a high-voltage ignition cable, an ignition transformer, and a lifting cylinder; the ignition head is firstly connected with the high-voltage ignition cable and then linked with the duct; the duct is an integrattage ignition cable, an ignition transformer, and a lifting cylinder; the ignition head is firstly connected with the high-voltage ignition cable and then linked with the duct; the duct is an integrated seamless steel pipe; the ignition transformer is firstly connected with the high-voltage ignition cable and then linked with the duct. The device has the advantages that due to the integrated desiged ...

Oxygen lance spray nozzle for converter

The invention discloses an oxygen lance spray nozzle for a converter, which is assembled at the air nozzle part of the rear end of an oxygen lance, and is characterized in that the oxygen lance spray nozzle comprises a spray nozzle main body communicated with the air nozzle part, a plurality of nitrogen spray pipes detachably spliced on the spray nozzle main body and a spiral vane device, wherein a straight spray pipe and at least two side nozzles around the straight spray pipe are positioned in the center of the spray nozzle main body, the spiral vane device is a dish-shaped tray having a hollow cylinder with the rear end being closed, meanwhile, the upper end of the hollow cylinder is connected with the straight spray pipe in a sealing way, the lower end of the hollow cylinder is connected with the dish-shaped tray through a bearing, and 3 to 6 blade-shaped inclined steel sheets are arranged on the upper surface of the dish-shaped tray and rotate relative to the hollow cylinder. Through ...

Combined direct hopper

The utility model discloses a combined direct hopper, including hopper body, cylinder, piston rod, the cylinder is fixed in through first flange fixed plate on the hopper body, the bottom of hopper body sets up the bottom closing plate, it is fixed that the bottom closing plate passes through second flange fixed plate, the front end of piston rod is provided with sealed fixed plate, bottom closing plate internal surface with laminate mutually in sealed fixed plate outer lane, the bottom closing plate with be provided with the sealing member between sealed fixed plate. This sealing member is the ladder type sealing strip, through set up the ladder type sealing strip between bottom closing plate and sealed fixed plate to cooperation O type circle uses, effectively solves the gas leakage problem of direct hopper when sealed, the vacuum of guaranteed vacuum inslot.

Air valve clamping stagnation test bed and method for transmission

The invention discloses an air valve clamping stagnation test bench for a transmission and a method. The air valve clamping stagnation test bench comprises an air valve clamping stagnation test arrangement bench. A main gas path control electromagnetic valve, a single H valve control electromagnetic valve, a first gas pressure detection sensor, a second gas pressure detection sensor and a third gas pressure detection sensor are arranged in the gas path control cabinet; a double-H-valve detection system and a single-H-valve detection system are arranged on the air valve clamping stagnation experiment arrangement rack; the single-H valve detection system comprises a single-H air valve and an auxiliary box gear shifting air cylinder. The single H air valve drives an auxiliary box gear shifting air cylinder; the double-H valve detection system comprises a double-H air valve, a gearbox double-H control device and a gear shifting air cylinder. The gear shifting air cylinder provides gear shifting ...

Oxygen gun water-cooling protective sleeve and method thereof

The invention discloses an oxygen gun water-cooling protective sleeve and a method thereof. The oxygen gun water-cooling protective sleeve is arranged on the furnace wall of a steel-making electric furnace, and comprises a water-cooling seat, wherein the water-cooling seat at least comprises a gun inserting hole, a water inlet, a water outlet and a cooling passage, the water inlet is arranged at one side of the gun inserting hole, the water outlet is arranged at the other side of the gun inserting hole, the water-cooling passage is connected with the water inlet and the water outlet, and the water-cooling passage is in snakelike wriggle arrangement. When the oxygen gun water-cooling protective sleeve is adopted, the shooting burning loss speed of an oxygen gun can be greatly reduced, so the cost is saved, the steel yield in unit time is increased, the processing is simple and convenient, and the popularization and the volume production can be easily realized.

Multifunctional torque calibration system and method

The invention discloses a multifunctional torque calibration system and method, and belongs to the technical field of automobile product testing, the system is driven by an air cylinder, the driving efficiency is high, manpower is saved, the single-end maximum thrust can reach 80 kN, and the requirement for large and small torque calibration can be fully met; the system supports CAN communication, is provided with a high-speed analog quantity acquisition channel, can read torque meter signals in real time, synchronously acquires the torque meter signals and a standard force value, facilitates the analysis of calibration data, and improves the calibration precision. The system has a manual control mode and an automatic control mode, under the automatic mode, the system automatically loads, automatically collects data and issues reports according to configuration files, the calibration efficiency is greatly improved, and the torque calibration system has independent property rights, is multifunctional ...

Water-cooling copper seat for multifunctional oxygen lance

The invention relates to a water-cooling copper seat for a multifunctional oxygen lance, which comprises a shell, a copper body, a waterslot seat, a U-shaped plate, a small barrel and a lug shell, wherein the shell is a one-piece-forged hollow body; the copper body is welded in the shell, and a mazy channel is formed between the copper body and an object; the U-shaped plate is welded at the exterior of the barrel; and a gap is formed between the U-shaped plate and the barrel. In the scheme of the invention, the shell is formed by machining after one-piece forging, thereby ensuring that cooling circulating water can not leak, and successfully solving the problem of immature technology of non-ferrous metal casting. In addition, the other components are sequentially welded on a base by an MIG welding mode, and after solution treatment is carried out, the service life can be prolonged to 12 months. The market price of the original foreign product is 180000-200000yuan RMB per piece, while the ...

INCENSE BURNER OF ELLIPSE TRIPOT SHAPE

The elliptic tripod type incense burner has three legs and two handles with an incense holder but without top cover. Its body is elliptic in shape with projecting gilded characters and patterns. There are vent holes at the bottom of the burner body. The incense holder is H figured tubular structure with grooves and a central hole. Three legs of the burner make 120 deg. angle with respect to the center of the burner. One of the legs is located on minor axis of the elliptic burner body, two handles are designed at both sides of the burner and on major axis of the burner.

Novel multifunction top lance head

The present invention relates to the field of metallurgy, particularly to a novel multifunction top lance head in a vacuum furnace external refining system. The novel multifunction top lance head at least comprises a lance head body, wherein the center position of the lance head body is provided with a combustion gas pipe, an oxygen pipe, a water inlet pipe and a water outlet pipe are sequentially and respectively sleeved from inside to outside by adopting the combustion gas pipe as the center, and the upper ends of the combustion gas pipe, the oxygen pipe, the water inlet pipe and the water outlet pipe respectively and correspondingly form a welded connection with various layers of sleeve pipes of the top lance body. The novel multifunction top lance head is characterized in that the lower end of the combustion gas pipe is communicated with a combustion gas hole on the top of the lance head body, the lower end of the oxygen pipe is uniformly distributed with 3-6 through holes along the ...

Coherent jet lance

The invention discloses a coherent jet lance which is arranged on the wall of a steel-smelting electric furnace. The coherent jet lance is characterized in that the lance body of the coherent jet lance is of three sets of tubular structures which include a main oxygen spray nozzle, a gas spray nozzle and an auxiliary oxygen spray nozzle, wherein the main oxygen spray nozzle is arranged in the center, the gas spray nozzle and the auxiliary oxygen spray nozzle are sheathed at the outer layer of the main oxygen spray nozzle; the spray nozzles with different functions are welded and combined with each other; and the main oxygen spray nozzle is provided with a Laval-hole type main oxygen hole in a nozzle part. The coherent jet lance has the burner nozzle function of steel scrap preheating, the fluxing function of blowing oxygen and cutting steel scraps, the function of leading a bath to decarburize and heat up by blowing oxygen, the function of spraying powdered carbon to make foamed slag and ...

Ignition burner of baking gun

The invention discloses an ignition burner of a baking gun, which comprises an igniting needle, a spray rod body and a gas nozzle connected into a whole through washers, igniting needle fixing bolts and fixing nuts. The spray rod body is a communicating pipe body formed by a first joint, a second joint, a third joint, a fourth joint and a fifth joint through screwed connection in sequence, the gas nozzle is sleeved on the fifth joint and stretches into the cavity of the fourth joint, and the side wall of the cavity of the fourth joint is provided with at least one air inlet; a Karwar hole structure is arranged in the cavity of the third joint; and the end part of the second joint, which is far away from the gas nozzle, is provided with a partition board part, and a plurality of through holes are evenly distributed in the partition board part. The ignition burner of the baking gun is made by respective processing and screwed connection and is convenient for the local improvement of theburner ...

Alliance block chain basic platform design method supporting non-peer node relationship

The invention relates to an alliance block chain basic platform design method supporting an asymmetrical node relationship, and belongs to the technical field of block chain basic platforms. The alliance block chain basic platform supporting the non-peer node relationship is designed, so that the block chain technology can still exert the technical advantages of multi-party consensus, high elasticity, high reliability, data consistency and the like in specific application under a vertical hierarchical management system of an enterprise and an institution; and transverse circulation, longitudinal convergence, layer-by-layer grading and control of high-value data are realized.