Liquid crystal compound with diphenylene-oxide structure and composition thereof

Excavator pressure flow control valve group

The utility model discloses an excavator pressure flow control valve group, the one end of first relief pressure valve and the one end tube coupling of A end tube coupling, the other end and first governing valve, the other end and the C end tube coupling of first governing valve, the one end of second relief pressure valve and the one end tube coupling of B end tube coupling, the other end and second governing valve, the other end and the D end tube coupling of second governing valve, connecting in parallel at the one end of first relief pressure valve and the other end of first governing valve in the both ends of first check valve, connects in parallel at the one end of second relief pressure valve and the other end of second governing valve in the both ends of second check valve, third check valve and fourth check valve set up relatively, the second overflow valve is connected on the pipeline between third check valve and fourth check valve, compact structure, easy and simple to handle ...

MODIFIED DECARBONIZING OR DESULFURIZING PROCESS BY PHYSICAL ABSORPTION

An additive (0.5-6 Wt.%) that may be tertiary alcohol amine, tertiary amine, or nitrogen-containing heterocyclic kinds of compounds or their mixture is added in a physical absorbent "propyl carbon" to make the matter in "propyl carbon" series has better corrosion-inhibiting effect, greatly speeded absorption rate and increased absorption capacity without influence to its desorption nature.

高密度光盘及其记录用的化合物

The present invention provides compounds as record medium for high density CD. The present invention also provides the high density CD produced with the compounds and its production process.

Cooling device and cooling method for computer heat dissipation module

The invention discloses a cooling device and a cooling method for a computer heat dissipation module, and belongs to the technical field of computer heat dissipation. Comprising a bottom plate and further comprises a central pipe fixedly connected to the surface of the bottom plate, vertical plates are arrayed on the outer wall of the central pipe, and mounting grooves are formed in the side walls of the vertical plates; the cooling liquid box is fixedly connected to the surface of the bottom plate, the inner wall of the cooling liquid box is fixedly connected with a suction pump, and the output end of the suction pump is fixedly connected with an arc-shaped pipe; the copper pipes are fixedly connected to the outer wall of the arc-shaped pipe, the copper pipes correspond to the vertical plates in a one-to-one mode, the copper pipes are fixedly connected with the corresponding vertical plates, and the outlet ends of the copper pipes are communicated with the cooling liquid tank; according ...

Liquid crystal compound and liquid crystal display comprising liquid crystal compound

The invention provides a liquid crystal compound which comprises a first liquid crystal compound with the following chemical formula (I) and a second liquid crystal compound; in the chemical formula (I), R is hydrogen, alkyl with a carbon number of 1-15, substituted alkyl with a carbon number of 1-15, alkenyl with a carbon number of 2-15 or substituted alkenyl with a carbon number of 2-15; A refers to the structural formulas shown in the specification; Z is -CO-O-, -O-CO-, -CH2O, -OCH2-, -CH2CH2-, -C=C-, -C-triple bond-C-, -CF2O- or -OCF2-; B refers to the formulas shown in the specification; Y is O or CH2; n is 0, 1 or 2; m is 0, 1 or 2; (n+m) is more than or equal to 1 and less than or equal to 3; p is 0 or 1. The invention also provides a liquid crystal display comprising the liquid crystal compound.

Method for manufacturing conductive pattern on flexible substrate and protective printing oil thereof

The invention provides a method for manufacturing a conductive pattern on a flexible substrate and protective printing oil thereof. The method comprises the following steps: providing the flexible substrate with a conductive layer; exposing part of the conductive layer covered by the protective printing oil by screen printing; etching and removing the exposed part of the conductive layer by usingthe protective printing oil as a mask; and removing the protective printing oil and remaining the conductive layer not etched to form the conductive pattern with the minimum line width not less than 150 microns. The invention also provides the protective printing oil used in the technology.

Data recovery device and method

The invention discloses a data recovery device, which comprises an analogue-to-digital (AD) converter, a filtering equalization unit, a zero crossover detector, a data phase-locked loop, a data mapping unit and an estimation unit. The AD converter converts a radio frequency signal into multiple sampling data points. The sampling data points are converted into multiple frequency reforming data points and frequency signals by the filtering equalization unit, the zero-crossover detector and the data phase-locked loop. The data mapping unit selects regional multiple maximum data points and multiple minimum data points from the frequency reforming data points and judges whether the maximum data points and the minimum data points are mapped to other correct positions respectively so as to repair some of the frequency reforming data points. The estimation unit recovers the repaired frequency reforming data points into modulation signals.

High density optical disk and its compound for recording

A high-density optical disc, its compound for high-density record and their preparing processes are disclosed.

Method for manufacturing conductive pattern on flexible substrate and protective printing oil thereof

The invention provides a method for manufacturing a conductive pattern on a flexible substrate and protective printing oil thereof. The method comprises the following steps: providing the flexible substrate with a conductive layer; exposing part of the conductive layer covered by the protective printing oil by screen printing; etching and removing the exposed part of the conductive layer by using the protective printing oil as a mask; and removing the protective printing oil and remaining the conductive layer not etched to form the conductive pattern with the minimum line width not less than 150 microns. The invention also provides the protective printing oil used in the technology.

Robot removes gluey production line automatically

The utility model relates to a full -automatic transportation field of piece of gluing in robot removes gluey production line automatically and the tire production process, concretely relates to robotremoves gluey production line automatically, include the conveyer belt that links to each other with the waste grinding machine export, the conveyer belt is connected with a storage frock through removing gluey manipulator, remove and glue mechanical handbag and draw together and remove gluey base and remove gluey tongs, remove gluey tongs pass through the arm with it links to each other to remove gluey base, the arm with remove gluey base and rotate to link to each other, remove to glue and grab handbag and draw together the tongs base, the utility model discloses will original pure artificial manual labor remove glue the piece, artifically confirm that the accuracy of gluing the piece is carried by the full automatization and replace, the very big intensity of labour who has alleviateedthe ...

Process for recovering urea microparticles

A process for recovering the urea microparticles from the liquid drops and dust containing urea in urea production system features that the overheat vapour or gas containing urea particles passes through the washing tower tray from bottom to top of tower and washing water passes through the tower from top to bottom, obtaining the urea solution with 20-30 % of wt concentration. Its advantages are high recovery yield (90-99%), simple equipment and low cost.

Industrial method for producing iminostilbene through catalytic dehydrogenation of iminodibenzyl

The invention provides an industrial method for producing iminostilbene through catalytic dehydrogenation of iminodibenzyl. The method comprises the process flows that: a reactant material is heated, melted, and mixed with high-temperature water vapor, and the mixture enters a dehydrogenation reactor; dehydrogenation reaction is performed in an axial or a radial fixed bed reactor which comprises at least two catalyst beds; the high-temperature water vapor is arranged between the two catalyst beds to indirectly or directly heat a reactant flow; the reactant flow which gets out of the reactor passes through a heat exchanger for heat exchange and heat recovery, and subsequently enters an absorption tower which is provided with the heat exchanger and is an bubbling absorption tower or a sprayabsorption tower; and a solvent which absorbs a reaction product is subjected to evaporation, crystallization and the like to obtain a product iminostilbene. The method has the characteristics of high reactivity ...

Method and device for recovering transition and reaction heat from wall heat-exchanging type saturation tower

The present invention belongs to the field of synthetic ammonia and methyl alcohol production, and discloses a method for recovering and converting reaction heat by means of dividing wall heat exchange type saturation tower and its equipment. It is characterized by that the charge gas and industrial soft water are fed into one side of heat exchange section of the dividing wall heat exchange type saturation tower to make heat exchange with conversion gas, catalytic reaction gas between conversion layers or hot water heated by catalytic reaction gas between conversion layers so as to avoid the limitation of balance line when making direct heat exchange, obviously raise steam-gas ratio of charge gas. For low conversion process, the steam-gas ratio can be up to 0.3-0.5, and for middle conversion process, the steam-gas ratio can be up to 0.65-0.80.

Reflection type liquid crystal material composition and reflection type bistable state liquid crystal display

The invention provides a reflection type liquid crystal material composition. In the invention, the drive voltage is lowered by utilizing high dielectric and anisotropic liquid crystal monomers; and liquid crystal materials of different colors can be driven by utilizing single drive voltage through changing the proportions of different liquid crystal monomers in the composition. The invention also provides a reflection type bistable state liquid crystal display using the reflection type liquid crystal material composition.

Liquid flowing along radius plate tower disc

The utility model designs a tray for a plate type tower with liquid flowing along a radius. The downcomers of the utility model are in a pipe type and an annular type. The tray with the pipe type downcomer and the tray with the annular type downcomer are arranged in staggered arrangement along a tower body. The utility model overcomes the defects that the liquid flow of a bow-shaped downcomer is not uniform, and an overflow dam is too short. The utility model is provided with a square float valve. The utility model has the advantages of uniform contact of liquid and gas, no liquid stagnation region, high tray efficiency, reliable structure, etc. The utility model is especially suitable for operation with large liquid amount and is suitable for mass transfer courses for the liquid and the gas, such as distillation, absorption, stripping, humidification, dehumidification, etc.

Crude oil pollution degradation strain and application thereof

The invention relates to a strain for degrading crude oil pollution and application of the strain. The strain is classified and named as Acinetobacter haemolyticus JS-1, and the preservation number of the strain is CCTCC M 20221600. The strain has the characteristics of short growth cycle, large biomass, wide temperature tolerance range, high crude oil degradation efficiency, high crude oil concentration tolerance and the like, has remarkable degradation efficiency on crude oil component n-alkanes, and can be used for degrading petroleum pollutants in water and soil. The strain JS-1 can tolerate a high-salt environment, is suitable for a marine environment, and has a good application prospect in marine oil pollution treatment.

Liquid crystal membrane capable of being repeatedly processed and manufacturing method thereof

The invention provides a liquid crystal membrane capable of being repeatedly processed, which comprises a first substrate, a first conductive layer and a liquid crystal layer, wherein the first conductive layer is arranged on the first substrate; the liquid crystal layer is arranged on the first conductive layer; and the liquid crystal layer contains microencapsulated liquid crystal particles dispersed in a thermoplastic macromolecule. The invention also provides a manufacturing method for the liquid crystal membrane.

Energy recovery system

The invention discloses an energy recovery system. A first main hydraulic pump (1) is connected with an engine (2); a second main hydraulic pump (15) is connected with a motor (14); an oil outlet of a multi-way valve (3) is connected with a rotary motor assembly (5), a movable arm potential energy recovery valve (13) and a movable arm oil cylinder (4) respectively; a working oil hole of the movable arm potential energy recovery valve (13) is connected with a rodless cavity oil hole of the movable arm oil cylinder (4); an oil outlet of the movable arm potential energy recovery valve (13) is connected with an energy accumulator (7) through a second one-way valve (11); a first one-way valve (8) is communicated with a hydraulic motor/generator (9) and the energy accumulator (7); an oil inlet of the first one-way valve (8) and two pressure oil holes in the rotary motor assembly (5) are all connected with a rotary energy recovery valve (6); the hydraulic motor/generator (9) is connected with ...

Three -dimensional truss automatic transportation line of robot of child embryo

The utility model relates to a tire vulcanization is three -dimensional truss automatic transportation line of robot of child embryo for the process. Three -dimensional truss automatic transportationline of robot of child embryo includes walking guide rail, running gear, lift hydraulic means, grabs child manipulator and electric cabinet, the walking guide rail horizontal bracket locate in the air, and the running gear activity sets up on the walking guide rail, the setting of lift hydraulic means perpendicular to walking guide rail. The utility model discloses following beneficial effect has:(1 )The child embryo snatch in pairs automatic carry deposit the child ware to the vulcanizer on, reduce and vulcanize intensity of labour, improve production efficiency, (2 )Improve the vulcanization workshop production automation degree, reduction in production cost.

Dry type discharge system and method for blast furnace dust

The invention discloses a blast furnace dust dry-type discharge system and method, applied in processing majority of furnace dust and furnace gas stored in a dust collecting apparatus. The system including: a spiral feeder provided below the dust collecting apparatus; a blanking device with a blanking tube, provided below the spiral feeder; an air-proof tank including a material inlet connected to the blanking tube and a container capable of accommodating the furnace dust; and an exhaust unit for pumping out the furnace gas and preventing dissipation. The present invention can solve the inherent protection and industrial safety problems of the general discharge systems, wherein, during discharging, sludge scatter on the earth surface and aqueous vapor pervading can often be resulted, and the dissipation of the nocuousness furnace dust and furnace gas is easy to concurrent. In addition, the invention furnace ensures that the material remain dry during discharging, and, therefore, it isno ...

Dry type discharge system and method for blast furnace dust

The invention discloses a blast furnace dust dry-type discharge system and method, applied in processing majority of furnace dust and furnace gas stored in a dust collecting apparatus. The system including: a spiral feeder provided below the dust collecting apparatus; a blanking device with a blanking tube, provided below the spiral feeder; an air-proof tank including a material inlet connected to the blanking tube and a container capable of accommodating the furnace dust; and an exhaust unit for pumping out the furnace gas and preventing dissipation. The present invention can solve the inherent protection and industrial safety problems of the general discharge systems, wherein, during discharging, sludge scatter on the earth surface and aqueous vapor pervading can often be resulted, and the dissipation of the nocuousness furnace dust and furnace gas is easy to concurrent. In addition, the invention furnace ensures that the material remain dry during discharging, and, therefore, it is no ...

Device for generating radio-frequency ripple zero-crossing signal and generation method thereof

The invention provides a device for generating a radio-frequency ripple zero-crossing signal and a generation method thereof. The method comprises the following steps: firstly receiving a radio-frequency signal; then transforming the radio-frequency signal into a radio-frequency enveloping signal; according to change of the radio-frequency enveloping signal, collating the DC offset of the radio-frequency signal so as to obtain the collated radio-frequency enveloping signal and obtain a gain value according to the collated radio-frequency enveloping signal; and finally generating the radio-frequency ripple zero-crossing signal according to the collated radio-frequency enveloping signal and the gain value.

Strain with capability of decomposing multiple indissolvable phosphorus sources and application of strain

The invention discloses a bacterial strain with capability of decomposing multiple insoluble phosphorus sources and application of the bacterial strain. The invention relates to the technical field of microorganisms, in particular to a bacterial strain with the capability of decomposing multiple insoluble phosphorus sources and application of the bacterial strain. According to the present invention, the Lactobacillus overpressure is the Lactobacillus overpressure, and the registration number of the Lactobacillus overpressure in the General Microbiological Culture Collection Center of the China Committee for Culture Collection of Microorganisms is CGMCC No.25752. The Lactobacillus overpressure is the Lactobacillus overpressure, and the Lactobacillus overpressure is the Lactobacillus overpressure in the China General Microbiological Culture Collection Center of the China General Microbiological Culture Collection Center of the China General Microbiological Culture Collection Center of the ...

Data recovery device and method

The invention discloses a data recovery device, which comprises an analogue-to-digital (AD) converter, a filtering equalization unit, a zero crossover detector, a data phase-locked loop, a data mapping unit and an estimation unit. The AD converter converts a radio frequency signal into multiple sampling data points. The sampling data points are converted into multiple frequency reforming data points and frequency signals by the filtering equalization unit, the zero-crossover detector and the data phase-locked loop. The data mapping unit selects regional multiple maximum data points and multiple minimum data points from the frequency reforming data points and judges whether the maximum data points and the minimum data points are mapped to other correct positions respectively so as to repair some of the frequency reforming data points. The estimation unit recovers the repaired frequency reforming data points into modulation signals.

Urea synthesizing tower with evenly distributed reaction material residance period

In the bottom of the tower, all the materials including ammonia, CO2, ammonium carbamate, etc. enter into the tower through respective fluid distributor, so that the material liquid is distributed homogeneously in the whole section once entering into the tower, and this can eliminate radically the distribution inhomogeneity of the flow rate, concentration and temperature of the materials. At the main urea discharge port in the upper part of the tower and at the discharge port for small amount of urea in the lower part, fluid distributors are set for homogeneous discharge. All the section homogeneous distribution of liquid flow in the tower can realize the homogeneous distribution of material residence-time and high reaction percent conversion.

Liquid crystal display and manufacture method thereof

The invention provides a liquid crystal display and a manufacture method thereof. The liquid crystal display comprises a first substrate and a second substrate arranged opposite the first substrate, wherein at least more than two cholesteric liquid crystal layers are arranged between the first substrate and the second substrate, and an optical additive with same chemical structure and different optical activity is respectively added in each cholesteric liquid crystal layer. The manufacture method of the liquid crystal display comprises the following steps: providing the opposite arrangement of the first substrate and the second substrate, adding the optical additive with same chemical structure and different optical activity in the same liquid crystal main body to form at least more than two cholesteric liquid crystal materials, and placing the cholesteric liquid crystal materials between the first substrate and the second substrate to form at least more than two cholesteric liquid crystal ...

Excavator control system with oil hybrid power

The invention relates to a hydraulic excavator control system, particularly to an excavator control system with oil hybrid power, and belongs to the technical field of engineering machinery. The system comprises hydraulic pumps (1), an engine (2), a main control valve (3), a boom cylinder (4), a rotary motor (5), a rotary energy recovery valve (6) and a movable arm potential energy recovery valve (10), wherein the rotary energy recovery valve recovers the overflowing energy of the rotary motor into a rotary energy accumulator (7); the movable arm potential energy recovery valve recovers the potential energy of the boom cylinder into a movable arm energy accumulator; oil outlets of the rotary energy accumulator and the movable arm energy accumulator are both connected with an energy release control valve, recovered energy is controlled to be transported to an auxiliary motor (11), and the auxiliary motor and the engine jointly provide power for the hydraulic pumps. Through the adoption of ...

Liquid crystal compound and liquid crystal composition comprising same

The invention provides a liquid crystal compound, which has the following chemical formulas (I): wherein Y1, Y2 and Y3 are independently hydrogen, halogen, cyano or thiocyano; and R is C1 to C12 alkyl or C1 to C12 alkoxyl. The invention also provides a liquid crystal compound comprising same.

Device for generating radio-frequency ripple zero-crossing signal and generation method thereof

The invention provides a device for generating a radio-frequency ripple zero-crossing signal and a generation method thereof. The method comprises the following steps: firstly receiving a radio-frequency signal; then transforming the radio-frequency signal into a radio-frequency enveloping signal; according to change of the radio-frequency enveloping signal, collating the DC offset of the radio-frequency signal so as to obtain the collated radio-frequency enveloping signal and obtain a gain value according to the collated radio-frequency enveloping signal; and finally generating the radio-frequency ripple zero-crossing signal according to the collated radio-frequency enveloping signal and the gain value.

Method for gas stripping and separating hydrazine from hydrazine-containing solution using acetone and use thereof

The invention relates to a method for obtaining pure hydrazine hydrate by isolating and purifying from solution containing hydrazine. The preparation method is that gas-phase acetone and the hydrazine which is contained in oxidation liquid are directly reacted and stripped under the boiling condition; or liquid-phase acetone and the solution are reacted first and then gas stripping is carried out, after the solution is hydrolyzed, the pure hydrazine hydrate is obtained; and the obtained product is sent into a general hydrolyzing tower, in which hydrolysis is carried out to produce the pure hydrazine hydrate solution, and acetone produced by the hydrolysis is sent back to a system for recycling, wherein, the mole ratio of the acetone and the hydrazine is 2 to 3.6 and the reaction temperature is 100 DEG C to 130 DEG C. By adopting the invention, the hydrazine produced by urea-chlorine method can be stripped by acetone azine (CH3)2C=N-N=C-(CH3)2, which causes the recycling of the inorganic ...

UV irradiation vulcanizing and drying all-in-one machine for shoemaking and control method of UV irradiation vulcanizing and drying all-in-one machine

The invention discloses a shoemaking UV irradiation vulcanizing drying all-in-one machine, which comprises a control device, a sole processing upper layer structure and a vamp processing middle layer structure, a UV irradiation part is provided with a UV irradiation conveying belt, a UV lamp assembly and an air external circulation assembly, a baking conveying belt and the UV irradiation conveying belt are mutually independently driven, and the UV lamp assembly and the air external circulation assembly are mutually driven. The output end of the baking conveying belt is connected with the input end of the UV irradiation conveying belt so as to form a coherent sole processing upper-layer structure; the vamp processing middle layer structure is provided with a vamp vulcanizing part, the vamp vulcanizing part comprises a vamp conveying belt and an infrared vulcanizing and shaping device, the control device is electrically connected with the baking conveying belt, the UV irradiation conveying ...

Urea synthesizing tower with evenly distributed reaction material residance period

Improved decarboniing or desulfurizing process by physical absorption

Storage device for computer information security product

The invention discloses a storage device for a computer information security product, and belongs to the field of computer storage. A storage device for computer information safety products comprises a cylindrical block and further comprises a plurality of circumferentially distributed storage grooves which are all formed in the upper end face of the cylindrical block, a plurality of circumferentially distributed fan-shaped heat dissipation holes are further formed in the upper end of the cylindrical block, air inlet holes communicated with the fan-shaped heat dissipation holes are formed in the bottom of the cylindrical block, and the air inlet holes are communicated with the fan-shaped heat dissipation holes. A negative pressure assembly enabling the air inlet to generate negative pressure is arranged in the air inlet. The end cover is detachably mounted at the top of the cylindrical block, a plurality of exhaust grooves are formed in the outer wall of the end cover, and the lower end ...

Filter and filtering method thereof

The invention provides a filter, which comprises a direct current tracking unit, a subtracter and a control unit, wherein the direct tracking unit is used for extracting a direct current component of a radio-frequency signal, and generating a level signal based on the direct current component; the subtracter is used for subtracting the level signal from the radio-frequency signal so as to generate a radio-frequency coupling signal; and the control unit is coupled between the subtracter and the direct current tracking unit and is used for judging whether a set signal is output to the direct current tracking unit according to the level fluctuation of the radio-frequency coupling signal so as to adjust a characteristic parameter, which influences the frequency range of the direct current tracking unit, of the direct current tracking unit. The invention also provides a filtering method suitable for the filter. The filter and the filtering method thereof judge whether the set signal is output ...

Energy recovery and utilization system for movable arm potential energy

The invention provides an energy recovery and utilization system for movable arm potential energy. The oil outlet of a movable arm locking valve (1), the rodless cavity oil opening of a movable arm oil cylinder (13) and the oil inlet of a second hydraulic-control reversing valve (3) are communicated with one another; the controlling oil opening of the movable arm locking valve (1) is connected with the oil outlet of a first hydraulic-control reversing valve (2); the controlling oil opening the first hydraulic-control reversing valve (2) is connected with the oil inlet of the first hydraulic-control reversing valve (2) and the controlling oil opening of the second hydraulic-control reversing valve (3); the second hydraulic-control reversing valve (3) is connected with a first one-way valve (4); the first one-way valve (4), an energy accumulator (7), a second one-way valve (8) and a hydraulic motor (10) are communicated mutually; the oil outlet of the hydraulic motor (10) is connected with ...

Lock detecting device of CD driver control system in time pulse rebuilding signal

Gas water heater

The invention discloses a gas water heater. The combustion chamber structure of the gas water heater comprises a box body and an inner surrounding plate, and a combustion chamber is formed in the box body; the inner coaming is arranged on the inner side of the box body, the inner coaming and the box body form an air cooling channel with an air inlet and an air outlet, the air inlet is formed in the box body, and the air outlet is formed in the inner coaming; the inner coaming is provided with at least two rows of air outlet sets in the height direction, and air outlets of every two adjacent rows of air outlet sets are arranged in a staggered mode. According to the technical scheme, the cooling and heat insulation effects are guaranteed.

Photosensitive binder for liquid crystal display

The invention relates to a photosensitive adhesive for a flexible liquid crystal display, which comprises an amino formic ester oligomer, a reactive monomer containing a phenyl group, and a photo initiator. The adhesive has good shearing strength and anti-stripping strength, and can also further reduce the driving voltage of the liquid crystal display.

Broken return oil system of excavator

The utility model discloses a broken return oil system of excavator belongs to excavator return oil system technical field, include go back to oil pipe (1) and connect a three way connection (2) on going back to oil pipe (1), another port of a three way connection (2) connects the export of overflow valve, still include the 2nd three way connection (3) and energy storage ware (4), establish ties in going back to oil pipe (1) and connecting in hydraulic tank through going back to oil pipe (1) in proper order a three way connection (2) and the 2nd three way connection (3), another port of the 2nd three way connection (3) links to each other with energy storage ware (4), filter (5) are connected on going back to oil pipe (1), lie in between the 2nd three way connection (3) and the hydraulic tank. The beneficial effects are that through the use of energy storage ware and filter, reduced broken hydraulic shock of returning in the oil pipe way, the oil return filter core in the hydraulic tank ...

High density optical disk and its compound for recording

Device and method for preparing core-shell quantum dots

The invention provides a device and a method for preparing core-shell quantum dots. The device comprises a nuclear multi-section feeding part, a nuclear reaction part, a shell feeding part and a shell reaction part. The nuclear multi-stage feeding part comprises feeding pipelines of different reactant solutions, and one reactant solution is conveyed to the continuous flow channel in a multi-stage feeding mode through the multiple feeding pipelines, so that the molar ratio between the different reactants is maintained at a preset proportion, and the formation quality of the nuclear structure is guaranteed. The nuclear reaction part is coupled with the nuclear multi-section feeding part and used for enabling different reactant solutions to react in the nuclear reaction part to form a nuclear structure. The shell reaction part is coupled to the continuous flow channel behind the core reaction part and receives the reactant solution of the shell supplied by the shell feeding part and the core ...

Method and device for recovering transition and reaction heat from wall heat exchanger type saturation tower

Barcode detection analysis and positioner

The utility model relates to a tire production technical field, barcode detection analysis and positioner in concretely relates to tire production process. A barcode detection analysis and positioner,includes conveying system and the work piece of transport on conveying system, including setting gradually first bar code image detection means and the rotary actuator in the conveying system top, still include the system center treater, the system center treater is bar code image analysis system, and bar code image analysis system carries out data transmission with bar code image detection meansand rotary actuator respectively electric the connection. Will the utility model is used for among the tire vulcanization production automatic transportation line, realized full -automatic transportin child embryo transportation process, economic benefits is showing.

回收尿素微粒的方法

... 本发明提供了一种回收尿素微粒的方法。由尿液蒸发器夹带尿素溶液微粒的过热蒸汽自下而上通过设置在尿液蒸发器顶部的洗涤塔盘，或由造粒塔排放的含有尿素微粒的气体自下而上通过设置在造粒塔顶部的洗涤塔盘，洗涤水从顶部塔盘进入，不需循环，一次洗涤即可获得重量浓度为20～30％的尿素溶液。采用本发明的方法对尿素生产系统产生的含有尿素的液滴和粉尘进行洗涤回收，在很低的液流强度即能将气相中90～99％的微粒脱除，并制得20～30％(wt)高浓度的尿素溶液。设备简单，操作成本低，投资小，可为新建工厂设计所采纳，更适于现有尿素工厂增产节支的现场改造所使用。 ...

Column tray with uniformly distributed retention period of liquid

Method for gas stripping and separating hydrazine from hydrazine-containing solution using acetone and use thereof

The invention relates to a method for obtaining pure hydrazine hydrate by isolating and purifying from solution containing hydrazine. The preparation method is that gas-phase acetone and the hydrazine which is contained in oxidation liquid are directly reacted and stripped under the boiling condition; or liquid-phase acetone and the solution are reacted first and then gas stripping is carried out, after the solution is hydrolyzed, the pure hydrazine hydrate is obtained; and the obtained product is sent into a general hydrolyzing tower, in which hydrolysis is carried out to produce the pure hydrazine hydrate solution, and acetone produced by the hydrolysis is sent back to a system for recycling, wherein, the mole ratio of the acetone and the hydrazine is 2 to 3.6 and the reaction temperature is 100 DEG C to 130 DEG C. By adopting the invention, the hydrazine produced by urea-chlorine method can be stripped by acetone azine (CH3)2C=N-N=C-(CH3)2, which causes the recycling of the inorganic ...

Lock detecting device of CD driver control system in time pulse rebuilding signal

An optical driver control system and a locking detector of a time pulse reconstruction signal are disclosed, the optical driver control system comprises a filtering and time pulse reconstruction loop which receives a pulse reconstruction signal and outputs a time pulse reconstruction signal and an uncorrected output signal; an error correcting unit which receives the uncorrected output signal and utilizes the Reed Solomon code arithmetic to correct the errors and generates the corrected output signal; a locking detector which receives the time pulse reconstruction signal and detects the locking quality of the time pulse reconstruction signal to output a locking quality index; and a servo control loop which receives the radio frequency signal and the locking quality index to generate a servo control signal, wherein when the locking quality index fails to reach a critical value, the servo control loop will load another group of control parameters to improve the reading performance of the ...

Column tray with uniformly distributed retention period of liquid

A tower tray with uniformly distributed liquid retaining time features that a flow uniforming plate inclined from center to two edges is arranged at liquid outlet of blow-shaped down spout on tower tray. Regulating the height, length and gradient of the plate, the liquid can be uniformed before it comes into tower tray. At same time, regulating the liquid flow at different position of tray can eliminate gathered stream and reflux, so the difference of retaining time is controlled within 8%. Said tower tray can be used for different types of plate towers.

Liquid crystal composite and liquid crystal display with same

The invention provides a liquid crystal composite. The liquid crystal composite contains a first liquid crystal compound which is shown in the chemical formula 1 and a second liquid crystal compound which is shown in one of the chemical formula 2-6, wherein in the chemical formula 1, R is hydrogen, C1-15 alkyl, C1-15 substituted alkyl, C2-15 alkenyl and C2-15 substituted alkenyl; Z is -CO-O-, -O-CO-, -CH2O-, -OCH2-, -CH2CH2-, -C=C-, alkynyl, -CF2O- or -OCH2-; Y is O or CH2; n is 0, 1 or 2, m is 0, 1 or 2; 1<=n+m<=3, and p is 0 or 1. The invention also provides a liquid crystal display with the composite.

Natural gluey breakage and automatic conveying system

Natural gluey breakage and automatic conveying system belongs to tire preparation technology field, its characterized in that: glue the frame and load the natural piece of gluing and load through therobot, transport to after errorless through the metal detector automated inspection who carries the transportation to take and treat the feed inlet, the natural piece of glue is from treating that a material mouthful entering breaker is broken into automatic binder removal behind the garrulous micelle, through carrying the automatic mixing jar that gets into in transportation area, through carrying transportation area transportation to garrulous micelle holding vessel, a garrulous micelle storage jar department disposes automatic weighing system, the feed opening is treated to the garrulous micelle of row extremely automatic weighing system, weight and variety according to BOM sets for realize that collocation the weighing of the garrulous micelle of multiple natural glue is carried to thebanbury ...

Desorption process for partially removing CO2 from carbonized mother liquid and apparatus thereof

By use of low-temp, heat source in a plant, selective desorption of carbonized mother liquid is conducted in the invented desorption equipment for partially removing CO2 from the said mother liquid. As a result, the output of liquid ammonia in N fertilizer plant where ammonium bicarbonate is produced may be increased by 15%.

A high density compact disc and a recording compound thereof

Liquid crystal compounds, LCD and electrooptical device

The invention relates to a liquid crystal compound, a liquid crystal display and an optoelectronic device. The invention provides the liquid crystal compound with a structure shown as the following formula and a method for synthesizing the same. The liquid crystal compound can be used independently or together with commercial liquid crystal molecules; and the low rotary viscosity property of the liquid crystal compound is suitable for various liquid crystals, such as a positive type or negative type liquid crystal formula. The invention also provides the liquid crystal display, wherein a liquid crystal layer comprises the liquid crystal compound. The invention also provides the optoelectronic device comprising the liquid crystal display.