86results about How to "Improve crystallization efficiency" patented technology

The invention provides an automatic step-by-step melting purification system for high-purity 4, 4 '-difluorobenzophenone, which comprises a primary crystallization system, a secondary crystallization system and a recovery-level crystallization system, the first-stage crystallization system comprises a first-stage crystallizer, a first-stage storage tank and a circulation tank; the second-stage crystallization system comprises a second-stage crystallizer, a second-stage storage tank and a finished product tank; the recovery-level crystallization system comprises a recovery-level crystallizer, a recovery storage tank and a waste liquid tank; an outlet of the first-stage crystallizer is connected with the first-stage storage tank, the circulating tank and the second-stage storage tank through pumping pipelines respectively; an outlet of the secondary crystallizer is respectively connected with a secondary storage tank, a finished product tank and a circulating tank through pumping pipelines; an outlet of the first-stage storage tank is connected with the first-stage crystallizer through a pumping pipeline; an outlet of the circulating tank is connected with the recycling-level crystallizer through a pumping pipeline; an outlet of the second-stage storage tank is connected with the second-stage crystallizer through a pumping pipeline; the outlet of the recycling-level crystallizer is connected with the first-level storage tank, the circulating tank, the recycling storage tank and the waste liquid tank through pumping pipelines, the whole process is automatic in operation, the safety degree is high, the purification process is low-carbon and environment-friendly, and the requirements of industrial production are met.

The invention discloses an efficient and simple lithium carbonate solution crystallization assembly and method. The efficient and simple lithium carbonate solution crystallization assembly at least comprises but is not limited to a freezing assembly, a filtering assembly, a crystallization assembly and a liquid discharging assembly. The freezing unit is used for freezing a prepared solution, the filtering assembly is used for filtering the frozen solution, the crystallizing assembly is used for crystallizing the filtered solution, and the liquid discharging assembly is used for discharging waste liquid in the crystallizing assembly; fibers are arranged in the crystallization assembly for crystallization treatment, and the filtering assembly and the liquid discharging assembly are connected with the crystallization assembly through a pump body; compared with a traditional crystallization mode, crystallization is carried out in a fiber mode, and crystals with larger particles can be condensed.

The utility model provides a crystallization filtering device for pesticide production, which belongs to the technical field of pesticide production equipment and comprises a crystallization tank body and a separation box body, and a filter screen plate is arranged in the separation box body; the crystallization tank body is provided with a heat exchange mechanism, and the heat exchange mechanism comprises a jacket and a heat exchange cylinder arranged in the crystallization tank body; the heat exchange cylinder and the crystallization tank body are coaxially arranged; the crystallization tank body is further provided with a stirring and scraping mechanism, the stirring and scraping mechanism comprises a motor, and the output end of the motor is connected with the rotating shaft; the rotating shaft penetrates through the heat exchange cylinder and is rotationally and hermetically connected with the heat exchange cylinder; a scraping assembly is arranged on the rotating shaft below the heat exchange cylinder and comprises two positioning rods, and the two positioning rods are connected with the rotating shaft through connecting rods; a scraping plate is arranged on each positioning rod and is respectively propped against the heat exchange cylinder and the crystallization tank body. The device integrates crystallization and filtration, so that the cooling efficiency and the crystallization efficiency of the device are improved, the cooling and stirring effects are considered, and crystals are not left and are easy to discharge.

The utility model relates to the technical field of glycine crystallization, in particular to a novel crystallization kettle which improves the crystallization efficiency and realizes the collection operation of crystals through the cooperation of a stirring mechanism and a collecting mechanism, and is relatively high in practicability. Four supporting legs are symmetrically and fixedly installed at the bottom end of the crystallization kettle body, a feeding hole and an observation hole are formed in the crystallization kettle body, a stirring mechanism is arranged in the crystallization kettle body and comprises a motor, the motor is fixedly installed at the top end of the crystallization kettle body, and a rotating shaft is fixedly installed at the output end of the motor. The end, away from the motor, of the rotating shaft is rotationally connected with the crystallization kettle body, a first stirring rod, a second stirring rod and a cleaning plate are fixedly installed on the rotating shaft, a plurality of scraping plates are symmetrically arranged on the cleaning plate, the cleaning plate and the scraping plates are all attached to the inner side wall of the crystallization kettle body, and a collecting mechanism is arranged at the bottom end of the crystallization kettle body. The collecting mechanism comprises a fixing box, the fixing box is fixedly installed on the four supporting legs, and two discharging holes are symmetrically formed in the bottom end of the crystallization kettle body.

The invention relates to the technical field of crystal growing furnaces, in particular to a crystal growing furnace crucible heating device which comprises a traction mechanism. The heating mechanism is arranged in the traction mechanism, the seed rod preheating mechanism is arranged on the heating mechanism, the rod shaft stabilizing mechanism is arranged between the heating mechanism and the seed rod preheating mechanism, and the melt crucible is arranged in the heating mechanism; and the traction mechanism comprises a seed rod for providing an adhesion basis for crystal generation. An independent seed rod preheating mechanism is arranged at the top of a traditional monocrystalline silicon heating and smelting device, after a seed rod is suspended right above a heating device in an initial state, the seed rod preheating mechanism can wrap a rod body, and at the moment, heat energy released in the heating device can be actively transferred into the seed rod preheating mechanism; and finally, the seed rod and the raw material smelting temperature can be kept constant, so that cracks generated after subsequent crystals are lifted due to the temperature difference between the seed rod and the melt can be avoided.

The utility model discloses an imidazole crystallization kettle which comprises a crystallization kettle body, a cooling pipe and a stirring rod, the cooling pipe is arranged at the bottom end of the outer wall of the crystallization kettle body, the stirring rod is arranged in the crystallization kettle body, and the imidazole crystallization kettle further comprises a heat preservation mechanism arranged on the outer wall of the cooling pipe; the fixing mechanism is arranged at the top end of the heat preservation mechanism. When the imidazole crystallization kettle starts to be used, cooling emitted by a cooling pipe is stored through using work of an auxiliary mechanism, fixing and supporting work is carried out after the auxiliary mechanism is buckled on the outer wall of the reaction kettle through using work of a fixing mechanism, and the cooling efficiency is improved through using work of the auxiliary mechanism. Through the cooperation of the structure, the problem that part of cold air is wasted when an outer coil pipe of an existing reaction kettle is cooled is solved.

This invention relates to a method for improving protein crystallization efficiency using hydrogel regulation. The method includes the following steps: mixing monomers to obtain a prepolymer solution, adding water and a photoinitiator, stirring to obtain a hydrogel precursor solution; stabilizing the obtained hydrogel precursor solution, then irradiating it with ultraviolet light to obtain a rough hydrogel; immersing the rough hydrogel in water and then drying it to obtain a dried hydrogel; preparing a buffer solution and using the prepared buffer solution to prepare a precipitant; immersing the dried hydrogel obtained in the previous step in the prepared precipitant to swell the dried hydrogel, washing and drying it to obtain a target hydrogel; dissolving the protein in the prepared buffer solution to obtain a protein solution; and dropping the obtained protein solution onto the surface of the obtained target hydrogel to crystallize it to obtain protein crystals. Compared with existing technologies, this invention can effectively solve the problem of low efficiency in protein crystallization while ensuring the quality of protein crystals.

The utility model relates to a pyrrole quinolinone production technical field especially relates to a kind of recovery treatment system for pyrrole quinolinone salting-out mother liquor and crystallization mother liquor, including pyrrole quinolinone salting-out mother liquor conveying pipeline and pyrrole quinolinone crystallization mother liquor conveying pipeline, pyrrole quinolinone salting-out mother liquor conveying pipeline, first concentration kettle, first crystallization, first drying device, sodium chloride storage tank and series connection;Pyrrole quinolinone crystallization mother liquor conveying pipeline, second concentration kettle, dilution kettle, decoloring kettle, first resin column, first pH adjusting kettle, second resin column, second pH adjusting kettle, second crystallization kettle, second drying device, pyrrole quinolinone storage tank are connected in series in proper order.The above-mentioned recovery treatment system design is reasonable, can recycle and utilize sodium chloride in salting-out mother liquor and pyrrole quinolinone in crystallization mother liquor, avoids resource waste.

The invention discloses a low-temperature multi-effect evaporation, concentration and crystallization device for treating high-salt-content and high-phenol-content wastewater, and relates to the technical field of evaporation and crystallization, the low-temperature multi-effect evaporation, concentration and crystallization device comprises a first evaporator assembly comprising a second outer shell and an inner shell, an inner cavity of the second outer shell is fixedly connected with the outer surface of the inner shell, and a partition plate is fixedly connected to the lower portion of the inner cavity of the second outer shell; the middle of the inner shell is rotationally connected with a threaded rod, the upper portion and the lower portion of the threaded rod are symmetrically and rotationally connected with first cleaning assemblies, the middle of the threaded rod is in threaded connection with a third scraper, and a rotating assembly is arranged at the upper end of the inner shell. A third scraping plate is in threaded connection with the middle of the threaded rod, so that when the threaded rod rotates, the third scraping plate can be driven to ascend and descend in the inner cavity of the inner shell, then crystals in the middle of the inner cavity of the inner shell can be cleaned, and accumulation of crystal substances in the inner cavity of the inner shell can be reduced; the influence of crystallization on the heat exchange efficiency between steam and feed liquid and the influence on the evaporation rate can be reduced or even avoided, and excessive accumulation of crystals can be avoided.

The utility model relates to a static crystallization separation device. The crystal collecting device comprises a scraping assembly used for scraping crystals on the crystallization assembly, and a collecting box used for collecting the crystals is installed at the lower end of the scraping assembly. After crystals are formed on fin plates of the crystallization assembly, through starting of a motor, a rotating rod drives a second bevel gear to rotate, the second bevel gear is matched with a first bevel gear to drive two reciprocating lead screws to rotate synchronously, the reciprocating lead screws are matched with lead screw nuts to drive a U-shaped plate to move front and back, and the crystals on a separation box are scraped away through a scraping plate; according to the utility model, after the crystals are scraped by the scraping plate, crystallization can be continuously carried out on the fin plate of the crystallization assembly, so that the crystallization efficiency of the fin plate is improved.

The invention discloses a concentrated solution freezing crystallization machine for salifying preparation of erythromycin oxime, and relates to the technical field of salifying preparation of erythromycin oxime, the concentrated solution freezing crystallization machine comprises a rack, a supporting plate is fixedly connected to the position, close to the edge, of the bottom of the rack, and a guide sliding groove is formed in the lower position of the surface of the supporting plate; and the top of the rack is fixedly connected with a hoist. According to the concentrated solution freezing crystallizer for salifying preparation of erythromycin oxime, a cavity is formed in the position between the temperature adjusting assembly and the temperature slowing assembly, heating water is introduced into the cavity, erythromycin oxime salt is evaporated and concentrated through water bath heating, then hot water is discharged to enable the temperature of a concentrated solution to reach a metastable area, and the interior of the temperature slowing assembly is slowly cooled; the erythromycin oxime crystals are separated out, the electric rotary table drives the magnetic sliding block to rotate, the temperature slowing assembly scrapes off the adhered crystals, and the problems that the heat transfer performance is deteriorated and the yield of the erythromycin oxime is low due to the fact that crystal scales are very easy to crystallize between a cooled solution and a heat transfer surface are solved.

The invention relates to the technical field of sublimation crystallizers, in particular to a pillow-shaped plate type decompression sublimation crystallizer which comprises a sublimation tank body, a first crystallization tank body is arranged on the side of the sublimation tank body, a second crystallization tank body is arranged on the side of the first crystallization tank body, and the upper surface of the sublimation tank body is communicated with a first ventilation pipe. The bottom of the side wall of the first crystallization tank body is communicated with a first ventilation pipe, the output end of the first ventilation pipe is communicated with the interior of the first crystallization tank body, the bottom of the side wall of the first crystallization tank body is communicated with a second ventilation pipe, the output end of the second ventilation pipe is communicated with the interior of the second crystallization tank body, a feeding opening is formed in the upper surface of the sublimation tank body, and a sealing cover plate is arranged at the input end of the feeding opening. According to the invention, the sublimation tank body can be efficiently and uniformly heated through the arranged water bath heating assembly, the crystallization efficiency of the crystallizer can be improved through the arranged pressure reduction synergistic assembly, and the crystallization operation with higher purity and higher efficiency can be realized through the arranged crystallization assembly.

The invention relates to the field of amino acid evaporation and crystallization, and in particular to a steam self-circulation system for evaporation of an amino acid crystallization tank. The system comprises a bottom plate, a plurality of support columns are arranged at the upper end of the bottom plate, an annular ring is slidably arranged between the support columns, a crystallization tank is rotatably arranged in the annular ring, a conical cover is arranged at the upper end of the support column, a connecting pipe connected with the conical cover is arranged at the upper end of the conical cover, an air pump connected with the connecting pipe is arranged at the upper end of the connecting pipe, a storage tank connected with the connecting pipe is arranged at the upper end of the connecting pipe, a heating plate is arranged on the inner wall of the crystallization tank, steam generated when an amino acid solution is heated can be stored in the storage tank through the air pump, impurities in the amino acid steam can be filtered out through a filtering unit, and the steam is circulated to the crystallization tank, so that the steam of the amino acid solution is reasonably utilized and the crystallization efficiency is improved, and the amino acid crystals contained in the steam can be extracted through the crystallization unit.

The utility model discloses a sugar cooling vertical crystallizer which comprises a vertical tank body, a top cover is arranged at the top of the tank body, a syrup inlet is formed in the top cover, a conical hopper is arranged at the bottom of the tank body, a syrup outlet is formed in the conical hopper, a plurality of heat exchange coil pipes are arranged in an inner cavity of the tank body in the height direction, each heat exchange coil pipe adopts a circular pipe distribution mode, and six concave arcs are evenly distributed on the periphery of each heat exchange coil pipe. A vertical column extending in the vertical direction is arranged in each concave arc, each heat exchange coil pipe is supported on a radial support, and the outer end of each radial support is fixedly connected to the corresponding vertical column. A lifting mechanism for driving the stand columns and the heat exchange coil to ascend and descend is arranged above the top cover. An upper stirring mechanism for uniformly distributing syrup on the cross section of the tank body is arranged above the top-layer heat exchange coil pipe, and a lower stirring mechanism is arranged in the conical hopper. The sugar cooling vertical crystallizer is high in crystallization efficiency, short in crystallization time, high in single productivity and low in operation failure rate.

The utility model discloses efficient crystallization equipment for triple superphosphate, which relates to the technical field of crystallization equipment and comprises a crystallization bin and a bottom plate, the top surface of the bottom plate is fixedly connected with a PLC (programmable logic controller) and four support rods, one ends, far away from the bottom plate, of the four support rods are fixedly connected with fixing sleeves, and the fixing sleeves are fixedly connected with the crystallization bin. A crystallization mechanism used for crystallizing triple superphosphate is arranged on the inner side of the crystallization bin, a monitoring mechanism is arranged on the surface of the crystallization bin, feed liquid circulates in the cooling pipes, cooling water is added into the crystallization bin through the cooling water inlet, and the cooling water is guided out through the cooling water outlet. Heat of the feed liquid in the cooling pipes is taken away by the cooling water in the circulation process of the cooling water, then the feed liquid is cooled, crystals are separated out while cooling is conducted, and the crystals are discharged into the collecting box at the feed liquid water outlet to be subjected to next operation, the twenty-five cooling pipes are arranged for circulation cooling of the feed liquid, and the problem that existing crystallization equipment is low in crystallization efficiency is solved.

The salting-out crystallizer convenient to clean comprises a crystallizer body, a top cover is arranged at the top end of the crystallizer body, a servo motor is fixedly installed at the top end of the top cover, a rotating rod is installed at the bottom end of a driving shaft of the servo motor, an arc-shaped scraper is welded to the bottom end of the rotating rod, and a supporting ring is welded to the surface of the rotating rod. A supporting rod is welded to the outer surface of the supporting ring, a U-shaped mounting seat is fixedly arranged at one end of the supporting rod, and a telescopic groove is formed in the surface of the U-shaped mounting seat; through matching arrangement of a rotating rod, a supporting ring, a supporting rod, a U-shaped mounting seat, a strip-shaped scraper and an arc-shaped scraper, salt crystals attached to the inner wall and the bottom of the crystallizer are conveniently scraped, and the working difficulty of manually cleaning the salt crystals attached to the inner wall of the crystallizer is reduced; the cushioning springs are arranged on the two sides of the strip-shaped scraper, so that the strip-shaped scraper plays a role in buffering when scraping salt crystals attached to the inner wall of the crystallizer, and the service life of the strip-shaped scraper is prolonged.

The invention relates to the technical field of evaporative crystallization and drying, and discloses continuous reactive crystallization and drying equipment which comprises a rack, a processing mechanism and a drying mechanism assembled on the rack are arranged on the rack, and a hot-air blower included in the drying mechanism generates high-temperature airflow to blow crystals in a filter part so as to accelerate the drying rate of the crystals; after the solution reaches a supersaturated state, crystals are separated out between the filtering piece and the partition plate, a first motor is started while heating is conducted through an electric heating wire, an output shaft of the first motor is matched with a clamping block to drive a center shaft to rotate, the center shaft drives a stirring piece to stir the solution when rotating, and heat transfer in the solution is promoted; the heat is more uniformly distributed in the whole solution, the local temperature difference is favorably eliminated, the thermal decomposition or bumping phenomenon caused by local overheating of the solution is prevented, and the uniform heat distribution can accelerate the volatilization speed of solute, shorten the evaporation time and improve the crystallization efficiency.

The invention discloses a sodium sulfate decahydrate wall-scraping type cooling crystallization separation device which comprises a crystallization barrel, a first rotating shaft is rotatably connected in the crystallization barrel, the first rotating shaft rotates in a reciprocating mode within a certain angle range, a plurality of hollow cooling plates are arranged in the crystallization barrel, at least one arc groove is formed in each cooling plate, and the arc grooves are communicated with the first rotating shaft. A plurality of first scraping plates corresponding to the cooling plates are arranged on the first rotating shaft at intervals, mounting blocks are arranged on the first scraping plates, grooves are formed in the mounting blocks, and first connecting blocks are fixedly connected to the bottom walls of the grooves through first springs; a first wedge-shaped block is arranged at the end, away from the first spring, of the first connecting block and is in sliding fit with the arc groove, and the first wedge-shaped block is in wedge-shaped fit with the two ends of the arc groove. Through cooperative work of the first scraping plates and the first wedge-shaped blocks, efficient cleaning and wall cleaning of the cooling plates and the inner walls of the arc grooves are achieved, and therefore the crystallization efficiency and the heat exchange efficiency are improved.

The invention discloses a preparation method of a glassine. The preparation method comprises the following steps: a) preparing raw materials; step b) condensation reaction; c) reduction reaction; step d) electrophilic substitution reaction; step e) crystallization and purification: step a) raw material preparation. According to the present invention, the electrophilic substitution reaction can be performed under the mild condition without the extreme reaction conditions such as the high temperature or the high pressure, such that the reaction is easily controlled, and the monomer source used by the electrophilic substitution reaction is generally convenient compared with the other types of the organic reactions; the xylose subjected to the condensation reaction is beneficial to improving the permeability of the glassy pigment, so that the glassy pigment can be deeply permeated into the skin, the energy consumption and waste emission in the production process can be reduced, and meanwhile, the treatment is performed in a heating and pressurizing manner in the reaction process, so that incomplete reaction or by-product generation can be avoided, and the production cost is reduced. And the final crystallization purification can improve the purity of the product.

The utility model discloses a steel wastewater zero discharge crystallization salt separation device which comprises a dosing tank, a stirring mechanism for stirring and mixing chemicals and wastewater is arranged in the dosing tank, a crystallization tank is arranged on one side of the dosing tank, and a cleaning mechanism for cleaning the four walls of the crystallization tank is arranged in the crystallization tank. A moving mechanism for cleaning crystals out of the crystallization box is arranged outside the crystallization box, a connecting pipe is horizontally and fixedly connected to the top of the crystallization box, the other end of the connecting pipe is fixedly connected with a collecting box, the connecting pipe is communicated with the crystallization box and the collecting box, and a flushing mechanism for cleaning the interior of the crystallization box is arranged in the collecting box. According to the utility model, the inside of the crystallization box is cleaned, the situation that the crystallization and salt separation efficiency and effect are reduced due to the fact that a large amount of crystals are attached to the crystallization box due to long-time crystallization and salt separation operation is avoided, the crystallization and salt separation efficiency and effect are improved, and stirring and mixing of chemicals and steel wastewater are realized; and the steel wastewater can be better subjected to chemical adding treatment.

The utility model relates to a zinc sulfate crystallization mechanism, which belongs to the technical field of zinc sulfate production and processing and comprises a tank body and a stirring mechanism. An air outlet and a discharge port are formed in the tank body, a tank cover is fixedly connected to the top of the tank body, and a feed port is formed in the tank cover; the stirring mechanism comprises a track column, a rotating shaft, a stirring assembly, a linkage rod and a driving motor; the upper end of the track column is fixed to the center of the lower end of the tank cover, an avoiding hole is formed in the center of the track column, a cam groove is formed in the outer side wall of the track column, and a sliding block is slidably arranged in the cam groove in a sleeved mode and fixed to a vertically-arranged linkage rod. The upper end of the rotating shaft penetrates through the avoiding hole, rotationally sleeves the center of the tank cover and is in transmission connection with the driving motor; a vertically-arranged limiting rod is fixed to the middle of the outer side wall of the rotating shaft. The stirring assembly comprises a connecting seat and a stirring rod; the rotating shaft is sleeved with the connecting base in a sliding mode, and a stirring rod is fixed to the outer side wall of the connecting base and fixedly arranged on the linkage rod in a sleeving mode; a plurality of groups of stirring assemblies are arranged in the vertical direction.

The utility model discloses a potassium sulfate production device which comprises a burdening reaction tank, a filter, a crystal cultivating device, a settling tank, a centrifugal machine and a drying machine which are communicated with one another, and a feeding hole of the burdening reaction tank is respectively communicated with a first metering tank and a second metering tank through a pipeline and a valve; a gas outlet of the ingredient reaction tank is communicated with an alkali liquor spray tower and a water spray tower through a condenser, and an overflow port of the settling tank and a liquid outlet of the centrifugal machine are both communicated with a first metering tank. The device can effectively recycle the unreacted sulfuric acid solution, reduces the production energy consumption of potassium sulfate, reduces the wastewater treatment cost, is high in crystallization efficiency and sedimentation efficiency, and improves the production efficiency of potassium sulfate.

The utility model relates to crystallization fluidized bed anti -scale technical field especially discloses a kind of water scale inhibition disturbance devices of water hardness removal crystallization fluidized bed. The water scale inhibition disturbance device of water hardness removal crystallization fluidized bed, including the spray gun pipe and water cannon pipe installed above crystallization fluidized bed by support assembly, it is characterized by: adjustable spray head is installed at the front end of the spray gun pipe, the tail end of spray gun pipe is connected the water outlet of injection branch pipe by flexible pressure hose A, the water inlet of injection branch pipe is communicated with water supply main pipe;The tail end of water cannon pipe is connected the water outlet of water cannon branch pipe by flexible pressure hose B, the water inlet of water cannon branch pipe is communicated with water supply main pipe. The utility model device is high in integration, reasonable in design, scale layer adhesion is destroyed by water conservancy disturbance to crystallization fluidized bed, avoid local supersaturation too high, effectively maintain the uniformity of fluidized bed, improve crystallization efficiency and seed activity, prolong the service life of equipment, reduce long-term operation and maintenance cost, suitable for widely popularization and application.

The utility model relates to the technical field of amino acid production, and discloses a crystallization drying device for producing amino acid, which comprises a bottom plate, the top of the bottom plate is fixedly connected with a treatment tank, the outside of the treatment tank is fixedly connected with a heating ring, and four corners of the outside of the heating ring are fixedly connected with fixing blocks. Clamping grooves are formed in the four corners of the interior of the bottom plate correspondingly, two fixing plates are fixedly connected to the bottom sides of the interiors of the multiple fixing blocks correspondingly, two-way threaded rods are rotationally connected to the bottoms of the multiple fixing plates correspondingly, and two threaded blocks are in threaded connection to the exteriors of the multiple two-way threaded rods correspondingly; the interiors of the multiple fixing plates are slidably connected with sliding columns. According to the utility model, the heating device can be quickly mounted and replaced, so that the maintenance efficiency of the heating device can be greatly improved, the inside of the heating device can be stirred to accelerate the crystallization efficiency of the heating device, and internal crystals can be scraped and prevented from being attached to the inner wall and being inconvenient to recycle.

The utility model provides a novel antimony crystal recovery device which is a hollow closed container, an antimony solution to be crystallized is filled in the hollow closed container, a rotating motor penetrates through the wall surface of the hollow closed container and then drives a vertical connecting rod to horizontally rotate, and a horizontal stirring rod is connected with the vertical connecting rod and extends below the liquid level; an aeration disc is coaxially arranged below the vertical connecting rod, is supported by one end of an aeration pipe extending from the bottom of the device and is communicated with the aeration pipe; the other end of the aeration pipe penetrates out of the device and then is communicated with a gas outlet of a water-gas dual-purpose pump; one end of a raffinate return pipe is communicated with the raffinate water outlet, and the other end of the raffinate return pipe is communicated with the raffinate water inlet; a residual liquid return pipe is also communicated with a water inlet and a water outlet of the water-gas dual-purpose pump; a plurality of aeration holes are formed in the vertical side wall of the aeration disc. According to the device, the horizontal stirring rod increases the horizontal and transverse fluidization process through horizontal stirring and horizontal and transverse aeration of the aeration air disc, so that the crystallization efficiency is improved, and the problem of insufficient reaction in the longitudinal fluidization process of a traditional fluidization device is solved.

The invention provides equipment and a method for preparing a palladium-plated bonding wire rod blank. The equipment comprises a closed smelting system, a vacuumizing system, a shielding gas system, a clamping guide system and a palladium-plated composite assembly, the closed smelting system is used for providing a closed smelting space; the vacuumizing system is used for communicating with the closed smelting system and vacuumizing the smelting space; the protective gas system is used for injecting protective gas into the smelting space; the clamping and guiding system is used for clamping the palladium-plated composite assembly and guiding the lower end of the palladium-plated composite assembly into the smelting containing cavity, a suction pipeline is further arranged in the clamping and guiding system, and molten liquid in the smelting containing cavity can enter the palladium-plated composite assembly under the action of negative pressure so as to form a palladium-plated bonding wire rod blank. Due to the existence of a closed space, vacuum and protective gas, the palladium plating stability is ensured; the oxidation process is avoided through multiple times of vacuumizing operation, so that the palladium-plated bonding wire has excellent mechanical and electrical properties, and the influence on the environment is small due to separation from the environment.

The invention relates to static crystallizer crystallization equipment, and relates to the technical field of crystallization equipment. The static crystallizer crystallization equipment comprises an equipment body, a cooling mechanism and a stirring mechanism, the cooling mechanism is used for cooling materials in the equipment body, the stirring mechanism comprises a moving frame, a moving assembly, a spiral stirring blade and a rotating assembly, the moving frame is located in the equipment body, and the rotating assembly is located in the equipment body. The moving assembly is used for driving the moving frame to move in the height direction of the equipment body, the spiral stirring blade is rotationally connected with the moving frame and located at the top of an inner cavity of the equipment body, and the rotating assembly is used for driving the spiral stirring blade to rotate. The stirring device has the effect of reducing the resistance borne by the stirring device during initial stirring.

The invention relates to the technical field of heat pump evaporators, and discloses a large-flow heat pump scraper evaporator which comprises a frame, a working part mounted on the frame and used for providing a stable working space for crystallization and precipitation in raw materials, and a stirring part mounted on the frame and the working part and used for uniformly distributing the raw materials and forming a film-shaped material flow, the feeding part is installed at the inner bottom of the frame and used for inputting and outputting raw materials, the double-heat-exchange part is installed on the inner wall of the frame and used for equally dividing the raw materials and steam to conduct circulation operation, and an original heating system, an original heat exchange system and an original cooling system are equally divided into two parts to be independently controlled through the double-heat-exchange part, the regeneration part and the cold radiator. In this way, the problem of excessive energy loss caused by centralized control when raw materials are treated in a large evaporation tank can be avoided, operation can be more accurately carried out according to actual requirements by independently controlling each part, and therefore the heat exchange efficiency is greatly improved, and the time needed for treating the raw materials is shortened.

The durene continuous suspension crystallization system comprises a crystallizer and a first circulating unit, and the first circulating unit comprises a first circulating pump and a cooler; the crystallizer is used for storing the durene enrichment liquid and crystallizing the durene enrichment liquid cooled by the cooler; the input end of the first circulating pump is communicated with the crystallizer, and the output end is connected with the material inlet of the cooler through a material supply pipeline; and a material outlet of the cooler is connected with the crystallizer through a material discharging pipeline. The durene enrichment liquid to be cooled and crystallized in the crystallizer is conveyed into the cooler through the first circulating pump, the cooler cools the durene enrichment liquid introduced into the crystallizer, and the cooled durene enrichment liquid is conveyed back to the crystallizer to be crystallized, so that uniform distribution of crystallized materials in the crystallizer can be promoted in the cooling and crystallizing process, and the crystallization efficiency is improved. Meanwhile, the contact efficiency of the cold source and the to-be-cooled enriched liquid and the heat removal efficiency of the cooler are improved, so that the crystallization efficiency is improved, and the purity and yield of final products are improved.