36results about How to "Low boiling point" patented technology

The utility model relates to the technical field of chlorophyll extraction, in particular to a multistage concentration and separation device in a chlorophyll extraction process, which comprises an extraction and separation tank, a first heating shell is welded on the surface of the extraction and separation tank, and a crushing component is arranged at the top of the extraction and separation tank. And the two sides of the rear side of the first heating shell are connected with an ethanol tank and a water storage tank through bolts correspondingly. According to the utility model, crushed chips are added into the extraction and separation tank, then high-concentration ethanol is added into the extraction and separation tank, water in the hot water tank is heated through the heater, the second electromagnetic valve and the first electromagnetic valve are controlled to be opened, and then the water in the hot water tank is pumped out through the third water pump and is injected into the first heating shell; water bath heating is conducted on the interior of the extraction and separation tank through hot water in the first heating shell, a first electromagnetic valve and a second electromagnetic valve are closed, a third electromagnetic valve and a fourth electromagnetic valve are opened, and hot water in the hot water tank is pumped into the second heating shell through a third water pump.

The invention discloses a high-water-content lignite moisture accurate regulation and control method and device, and relates to the technical field of lignite treatment device.The high-water-content lignite moisture accurate regulation and control device comprises a rack and further comprises a crushing mechanism connected to the rack, and the input end of the crushing mechanism communicates with a feeding port; the input end of the vacuum dehydration system is communicated with the output end of the crushing mechanism; the input end of the feeding mechanism is communicated with the output end of the vacuum dehydration system; and the input end of the upgrading mechanism communicates with the output end of the feeding mechanism. High-water-content lignite is crushed through the crushing mechanism, water and pulverized coal are separated and collected through the vacuum dehydration system, and ash which affects heat production and pollutes the environment in the pulverized coal is removed through the quality improving mechanism, so that the combustion quality of the lignite powder is improved, and emission of pollutants is reduced; and conveying of the pulverized coal and adding of the corresponding water content are continuously performed through the scraper conveying belt, so that the influence of water and ash in the lignite with the high water content is reduced, and the water in the lignite is accurately regulated and controlled.

The invention discloses a carbon fiber production waste liquid recycling process, which comprises: (1) inputting a waste liquid containing acrylonitrile and dimethyl sulfoxide into an acrylonitrile recovery tower, controlling the pressure and the temperature, enabling acrylonitrile and a part of water to form a gas phase, and separating the gas phase from the tower top to obtain dimethyl sulfoxide and water at the tower bottom; (2) dimethyl sulfoxide and water at the bottom of the acrylonitrile recovery tower sequentially enter a first-stage dehydrating tower, a second-stage dehydrating tower and a third-stage dehydrating tower, water is discharged from the tops of the dehydrating towers, and dimethyl sulfoxide at the bottom of the tower is purified step by step until the concentration reaches 99.5% or above; and (3) the purified dimethyl sulfoxide enters a rectifying tower, the pressure and the temperature are controlled, dimethyl sulfoxide impurities exist at the tower bottom, dimethyl sulfoxide forms a gas phase, the gas phase is discharged through the tower top, and after condensation and recovery, a pure dimethyl sulfoxide product without impurities is obtained. The process is efficient, environment-friendly and energy-saving, and the recovery rate of acrylonitrile and dimethyl sulfoxide is high.

The utility model discloses a reaction water removal device for o-phenylenediamine production, which relates to the technical field of o-phenylenediamine production, and comprises a dehydration tank and a heating shell, the top end of the dehydration tank is hermetically connected with a cap, the top of the cap is communicated and connected with an air inlet pipe, an air outlet cylinder and a feeding cylinder with a valve, a valve body is further arranged on the air inlet pipe, a discharging barrel with a valve is connected to the bottom of the dewatering tank in a penetrating mode, a vacuum pump is connected to the end, away from the cover cap, of the air outlet barrel, and the dewatering tank is sleeved with the heating shell. The heating shell is started to heat o-phenylenediamine in the dehydration tank, the vacuum pump is started to pump out air in the dehydration tank, and the interior of the dehydration tank is in a negative pressure state, so that the boiling point of water in raw materials is reduced, all the valves are opened, outside air enters the dehydration tank, and meanwhile the air in the dehydration tank is pumped out; therefore, water vapor in the dehydration tank is brought out, and the use effect is good.

The utility model discloses a kind of camellia seed oil refining front water removal and impurity removal device, it is related to camellia seed oil processing technical field, including support column, support plate and impurity removal box, further include: feed pipe, circular filter plate, impurity collection mechanism is set on impurity removal box, water collection mechanism is set on support plate, stirring mechanism is set on impurity removal box, cleaning plate, pressure reduction mechanism is set on impurity removal box;Through the cooperation between impurity collection mechanism, stirring mechanism and cleaning plate, so that drive cleaning plate rotation while stirring, impurities on circular filter plate are swept by cleaning plate, and make the impurities swept down produce centrifugal force, so that impurities fall into impurity collection mechanism, play to prevent filter plate blockage, and facilitate cleaning;Through the cooperation between pressure reduction mechanism, water collection mechanism, stirring mechanism and conical electric heater, reduce the air pressure in box, thereby reduce the boiling point of water in box, accelerate water evaporation, improve separation efficiency.

The utility model provides a traditional chinese medicine citrus energy -conserving drying device, including including the cabinet, the cabinet door of hinged installation in the cabinet one side, set up in the plurality of storage board in the cavity of cabinet, microwave generating subassembly, dehumidification pipe, control panel and vacuum pump, a plurality of storage board interval installation in the cavity of cabinet along vertical direction in the cabinet, through having the vacuum pump on the cabinet, utilize the vacuum pump to the air in the cabinet and extract, make the cavity of cabinet is in low pressure environment, reduce liquid boiling point, set up simultaneously in the microwave generating subassembly in the cabinet, can carry out efficient heating to the citrus that stores in the cabinet, make the moisture that adheres on citrus rapidly vaporizes and evaporates under low temperature environment, avoided the temperature of citrus self excessively high, the synergies of vacuum and microwave, realize low temperature environment to the moisture on citrus and dry.

The invention relates to the technical field of cleaning machines, in particular to a monocrystalline silicon wafer ultrasonic cleaning machine with a multi-stage spray cleaning and vacuum infrared drying cleaning machine structure, which comprises a cleaning seat and a material supporting device mounted at the top end of the cleaning seat, an ultrasonic cleaning cavity, an ozone water spraying cavity, a hydrofluoric acid spraying cavity, an alkaline spraying cavity, an acid spraying cavity and a vacuum infrared drying cavity are sequentially formed in the top face of the cleaning base along the circumference, a center column is fixedly welded to the center of the top end of the cleaning base, and an intermittent rotating device is installed at the top end of the cleaning base around the center column. And the intermittent rotating device drives the materials in the material supporting device to move among the working cavities in sequence. According to the silicon wafer cleaning device, the ozone water spraying cavity, the diluted hydrofluoric acid spraying cavity, the alkaline spraying cavity and the acid spraying cavity are arranged to achieve multi-stage spraying cleaning of silicon wafers, the vacuum infrared drying cavity is arranged to rapidly dry the silicon wafers, and meanwhile a twisting block rotates to drive the bottom tray and the top cover tray where monocrystalline silicon wafers are placed to twist in the cleaning process; and the silicon wafer is cleaned more thoroughly.

The utility model relates to the technical field of centrifugal evaporation, and particularly discloses a low-temperature-based high-speed centrifugal evaporation device which comprises a shell, a motor is embedded in the surface of the shell, and a cavity is embedded in the surface of the shell; a containing cavity is formed in the cavity, an output shaft of the motor is connected with the bottom face of the containing cavity, a cover is rotationally installed on the surface of the shell, and a sealing cover is installed at the bottom of the cover. The shell is provided with a heating structure, and the heating structure is characterized in that a heating block is embedded in the shell, and a pipeline I is embedded in the surface of the cover. According to the low-temperature high-speed centrifugal evaporation device, the heating structure is arranged, the placing cavity is heated, then the reaction rate of a reagent is increased, the vacuum pump vacuumizes the interior of the placing cavity through the second pipeline, a negative pressure environment is formed in the placing cavity, the boiling point of the reagent is reduced, the evaporation process is further accelerated, the evaporation time is shortened, and the working efficiency is remarkably improved.

The invention belongs to the technical field of high-performance special materials, and discloses a one-step method for preparing silicon alkyne resin MDPES. The method comprises the following steps: mixing 2-halophenylacetylene, dichlorosilane and a solvent, adding magnesium, and heating for reaction; after the reaction is finished, adding acid liquor for neutralization, and then extracting and layering to obtain an organic layer; then concentrating the organic layer to obtain a concentrated solution, and finally carrying out molecular distillation on the concentrated solution to prepare the silicon alkyne resin MDPES. Wherein the 2-halogen phenylacetylene comprises one of 2-iodine phenylacetylene, 2-bromophenylacetylene and 2-chlorophenylacetylene; and the molecular formula of the dichlorosilane is R1R2SiCl2. According to the method provided by the invention, the 2-halophenylacetylene and the dichlorosilane are subjected to one-step reaction in the anhydrous solvent to prepare the product with high purity and high yield. The method uses few raw materials, the preparation steps are simple, and the production efficiency is high; and the prepared product has the advantages of high yield, high purity, safety, environmental protection and easiness in industrialization.

The present application relates to the technical field of soft candy production, in particular to a vacuum low-temperature boiling process and equipment for heat-sensitive functional soft candy, comprising a supporting assembly, a heating assembly and a sealing assembly, wherein the supporting assembly comprises a bottom plate, a side plate, a top plate, a lifter, a lifting plate and a supporting plate; the vacuum low-temperature boiling process and equipment for heat-sensitive functional soft candy is characterized in that the sealing assembly adopts a "vacuum generator + sealing ring" structure, the vacuum degree in the heating box is quickly extracted to -0.06~‑0.09MPa, the boiling point of the material is reduced, low-temperature boiling at 60‑75℃ is realized, and the inactivation of heat-sensitive components such as probiotics and vitamins caused by high temperature is avoided; the angle adjusting assembly adopts a servo motor to drive a worm gear transmission, which drives the heating box to freely roll around the hinged shaft; when loading, the heating box can be rolled to an inclined state, which facilitates the pouring of the material; when discharging, the heating box is inclined by 30‑45°, and uniform discharging is realized in cooperation with the flow guide plate, thereby solving the problem of inconvenient loading and unloading of the traditional equipment.

The utility model discloses a vacuum cooling system for tea pigment production. The vacuum cooling system comprises a base; the rack is arranged on the base; the air inlet tank is arranged on the rack; the cooling tank is arranged on the rack, and the air inlet tank is communicated with the cooling tank; and the vacuum gas storage tank is communicated with the cooling tank. In the tea juice concentration process, the vacuum pump extracts high-temperature steam from the concentration evaporator to maintain the vacuum degree in the concentration evaporator and reduce the boiling point of tea juice in the concentration evaporator, so that the energy required by tea juice concentration is reduced. High-temperature steam pumped out of the concentration evaporator by the vacuum pump firstly enters the air inlet tank and then enters the cooling tank through the air inlet tank to be cooled, and after being fully cooled in the cooling tank, the high-temperature steam is discharged into the vacuum air storage tank and flows into the vacuum pump through the vacuum air storage tank. Through the steps, high-temperature steam can be effectively prevented from directly flowing into the vacuum pump, large temperature rise of the vacuum pump is avoided, the vacuum degree of the vacuum pump is improved, and the service life of the vacuum pump is prolonged.

The invention provides a carbon electrode and a preparation method and application thereof. The preparation method comprises the following steps: coating a substrate with carbon slurry to obtain a wet carbon film, and then coating the wet carbon film with liquid alkane to obtain the carbon electrode. The liquid alkane is introduced to the surface of the wet carbon film, and by means of the characteristic that the liquid alkane and the solvent of the carbon slurry are immiscible, the boiling point of a double-liquid system is reduced, the volatilization speed of the solvent in the carbon slurry is increased, the curing temperature of the carbon electrode is further reduced, and perovskite can be prevented from being decomposed at high temperature; and the damage of the solvent in the carbon slurry to the perovskite layer and other functional layers is greatly reduced, so that the efficiency of the subsequently prepared perovskite solar cell or laminated solar cell is remarkably improved. In addition, the preparation method is simple in process and low in cost, and has good development potential.

This utility model discloses a multi-stage purification device for continuous production of phosphate esters, relating to the field of phosphate ester production technology. It includes a heat-insulated negative pressure evaporator, with multiple heating collection hoppers evenly distributed on the inner wall of the evaporator, the smaller ends of which face downwards. A servo drive motor is fixedly connected to the center of the bottom of the evaporator, and a central rotating shaft is rotatably mounted at the center of the evaporator, passing through the center of the multiple heating collection hoppers. By incorporating an alcohol-ester separation bowl and an annular filter cover, alcohols in the phosphate ester solution can be separated, preventing alcohol residue in the solution and improving the purity of the phosphate ester. Through continuous evaporation via the multi-stage heating collection hoppers, the purity of the phosphate ester is gradually increased, achieving continuous production and effectively solving the problems of high steam consumption and low efficiency in traditional single-stage evaporators.

The utility model discloses a drying device which is used for drying electronic elements and comprises a first driving assembly, a first box body, a second box body and a vacuumizing assembly arranged on the first box body. The first box body and the second box body are oppositely arranged, the first driving assembly is in transmission connection with the first box body and used for driving the first box body to be close to or away from the second box body so as to form or open a closed space used for containing electronic elements, and the vacuumizing assembly is communicated with the first box body and used for vacuumizing the closed space; the drying device further comprises a second driving assembly and a drying assembly arranged in the second box body, and the second driving assembly is in transmission connection with the drying assembly and used for driving the drying assembly to rotate so as to drive the electronic element to rotate and accelerate drying. The utility model further discloses electronic element processing equipment comprising the drying device.

The utility model relates to a contact type heat dissipation device and a motor system.The contact type heat dissipation device comprises a gasification jacket, an exhaust chamber, a vacuum pump, a liquid pump, a liquid storage chamber, a nozzle, a temperature sensor, a controller and a plurality of connecting pipelines, the gasification jacket is arranged on the peripheral side of a stator winding shell in a sleeving mode, and the nozzle is arranged on the side wall of the gasification jacket; the temperature sensor is arranged on the surface of the stator winding shell; when the temperature sensor detects that the temperature of the stator winding shell is greater than or equal to a first preset temperature value, the controller controls the liquid pump to pump a refrigerant into the nozzle from the liquid storage chamber, and the refrigerant is sprayed on the surface of the stator winding shell through the nozzle; the vacuum pump communicates with the gasification jacket through the exhaust chamber, and the controller controls the vacuum pump to discharge the gaseous refrigerant in the exhaust chamber to the external space. According to the contact type heat dissipation device and the motor system provided by the invention, the problem of low heat dissipation efficiency of a liquid cooling plate contact type heat dissipation or air cooling heat dissipation mode is solved.

The application discloses a DASA molecular switch photochromic film and application thereof. Z ,4 E )-2-hydroxy-5-((2-hydroxybenzyl)(pyridine-2-methyl)amino)pent-2,4-dien-1-ylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione is dissolved in 1,1,1,3,3,3-hexafluoro-2-propanol, and a photochromic film is formed after the solvent is volatilized. The photochromic film of the application breaks the limitation of DASA molecular concentration dependence, realizes photochromism in a solid film state by means of intramolecular Michael addition and provides bicyclic isomers, and has application prospects in drug delivery, temperature sensors, chemical detectors, surface chemistry and photothermal driving.

The invention discloses a triethylene glycol negative pressure regeneration system and method, and relates to the technical field of natural gas purification application, the triethylene glycol negative pressure regeneration system comprises a rectifying column, a heat exchanger, a flash tank, a buffer tank, a reboiler and a gas-liquid separator, the rectifying column is arranged above the reboiler and is communicated with the reboiler, a preheating pipe is arranged at the upper part in the rectifying column, the bottom of the reboiler is communicated with the buffer tank, and the buffer tank is communicated with the heat exchanger. A spiral pipe is arranged in the buffer tank, a barren liquor outlet is formed in the bottom of the buffer tank, and a fire pipe is arranged in the reboiler; an outlet of the preheating pipe is connected with a material inlet of a heat exchanger through a pipeline J. The heat exchanger is connected with a flash tank which is connected with a spiral pipe. The outlet is communicated with the feeding hole of the rectifying column; a gas-phase outlet of the rectifying column is connected with a plurality of compressors which are connected with a medium inlet of the heat exchanger; the medium outlet of the reboiler is connected with the gas-liquid separator, and the gas-liquid separator is communicated with the fuel gas inlet of the fire tube, so that the aims of regenerating triethylene glycol at low temperature, reducing the scaling risk of the fire tube, improving the operation energy efficiency of the system and enhancing the operation safety of the reboiler are fulfilled.

The utility model provides a kind of pretreatment device for chlorosilane sample detection, it is related to chlorosilane sample content detection technical field, it includes: box, buckling piece, gas storage tank, pump body, vacuum pump and pressure gauge, box is hinged with switch door, and side wall surface is respectively provided with air inlet and air outlet;Buckling piece is used to switch door buckling in the opening of box;Gas storage tank is filled with inert gas inside;Air outlet is communicated with air inlet between gas storage tank side wall surface and air inlet and is provided with air inlet pipe;Pump body is between box and gas storage tank, for pumping the gas in gas storage tank into the inside of box;Vacuum pump is equipped with the air outlet pipe of communication between air outlet;Pressure gauge is located at the top of box, for real-time display the pressure value in the inside of box.The pretreatment device can avoid the problems of sample content loss, heating operation risk, and the influence of open system on the sample to be measured during the drying process.

The utility model provides a system for recycling heavy oil in cyclohexanone production, the system comprises a heavy oil coalescer, a heavy oil separator and the like, DMAC is added into heavy oil, so that the relative volatility of methylcyclopentane and cyclohexanol in the heavy oil can be improved, rectification separation of cyclohexanol is facilitated, cyclohexanol is convenient to recycle, the utilization rate of cyclohexanol is improved, and the enterprise cost is reduced. The pressure in the heavy oil separator can be reduced by using the two parallel vacuum pumps and the two parallel compressors, so that the boiling point of heavy oil in the heavy oil separator is reduced, and rectification separation is facilitated; and meanwhile, the use amount of 1.2 MPa live steam is also saved. The mixed steam compressed by the compressor is introduced into the second reboiler or the third reboiler according to different temperatures of the mixed steam, so that heat is provided for the heavy oil separator, meanwhile, the energy of the secondary steam is reasonably utilized, and the use amount of 1.2 MPa live steam is further saved.

This utility model relates to the field of quality detection technology for tea polyphenols in tea, and discloses a quality detection system for tea polyphenols in finished tea products. The system includes a vacuum assembly installed above a heat treatment assembly. A water storage assembly is installed on one side above the heat treatment assembly, a translation assembly is installed in the middle of the upper part of the heat treatment assembly, and a telescopic assembly is installed at the bottom of the translation assembly. A tea polyphenol detector is installed on the other side above the heat treatment assembly. The vacuum assembly helps create a low-pressure environment, which helps accelerate the extraction process of tea polyphenols and other components in the tea. The low-pressure environment lowers the boiling point of the solvent, allowing the extraction process to take place at a lower temperature, thus protecting the heat-sensitive components in the tea from damage, improving extraction efficiency, and obtaining more accurate detection results. The translation and telescopic assemblies simplify the operation of the detection device, allowing for easy adjustment of the detection position.

The invention relates to the field of coal chemical industry, and discloses a method for preparing hard asphalt by solvent extraction of coal tar. The method comprises the following steps: mixing a first solvent with coal tar, heating and stirring, standing for a period of time, separating a first extract liquor on the upper layer, adding the first solvent into the raffinate again, heating, stirring, standing and circularly extracting to obtain a first raffinate, wherein the first solvent is selected from methanol or ethanol; and mixing a second solvent with the first raffinate, heating, stirring, standing, and separating an upper-layer second extract, the raffinate being the hard asphalt component, and the second solvent being selected from toluene or xylene. According to the method, high-quality hard asphalt is obtained by extracting coal tar step by step through two solvents, the softening point of the high-quality hard asphalt is high, and the content of toluene insoluble substances and quinoline insoluble substances is relatively high; the selected solvent is low in toxicity, low in boiling point and good in extraction effect, the extraction process is simple, the extraction temperature is low, and the solvent can be recycled; the method has the advantages of low energy consumption, less investment, stable quality of the hard asphalt product and less discharge of three wastes.

The invention belongs to the technical field of preparation of high-performance ceramics, and provides a preparation method and application of residue-free degreased aluminum nitride spray granulation powder in order to solve the problem that aluminum nitride is hydrolyzed in the traditional aluminum nitride spray granulation process or residual carbon corrodes aluminum nitride grains during high-temperature sintering. By adopting the alcohol-based aluminum nitride spray granulation powder and the preparation method thereof, a green body formed by the powder can be completely degreased in a nitrogen atmosphere, and carbon residues are avoided.

The utility model provides a kind of vacuum distillation device for ammonia catalyst purification, comprising: distillation column, preheater being connected with the liquid inlet of distillation column by pipeline, condensing system being connected with the exhaust port of distillation column by pipeline, receiver being connected with the liquid outlet of condensing system by pipeline, cold trap tank being communicated with the gas outlet of the upper portion of receiver by pipeline, vacuum drying box being communicated with the top of cold trap tank by pipeline, and vacuum pump being communicated with the upper portion of cold trap tank by pipeline;Through the condensing system being connected with the exhaust port of distillation column, ammonia catalyst vapor generated by evaporation is effectively condensed into liquid, and is collected by receiver, cold trap tank being arranged at the gas outlet of receiver, further captures and condenses low-boiling-point component or small amount of ammonia catalyst vapor that is not completely condensed in condensing system, vacuum pump is arranged to make the whole system operate under reduced pressure, which is conducive to distillation at lower temperature, reduces the influence of high temperature on material, and improves the purification effect.

The utility model provides a device for reducing dry distillation temperature, which comprises a dry distillation furnace, a furnace cover is arranged at the top of the dry distillation furnace, a vacuum valve is fixedly mounted on the left side of the top of the furnace cover, a one-way air inlet valve is fixedly mounted on the right side of the top of the furnace cover, and a discharge valve is fixedly mounted at the bottom of the dry distillation furnace. Supporting rods are fixedly installed on the periphery of the bottom of the dry distillation furnace, a heating cavity is formed in the inner surface of the dry distillation furnace, a heating pipe is fixedly installed in an inner cavity of the heating cavity, and by arranging a cleaning assembly, a vacuum valve and a one-way air inlet valve, a scraper can scrape away materials adhering to the inner wall of the dry distillation furnace, so that the phenomenon that due to adhesion of the materials, the materials are scraped away is avoided; meanwhile, through cooperation of the vacuum valve and the one-way air inlet valve, the boiling point of liquid can be obviously reduced by reducing the pressure, so that volatile products can be evaporated and escaped at a lower temperature, the temperature of materials in the inner cavity of the dry distillation furnace is also reduced, and the work of reducing the dry distillation temperature is realized.

The application discloses a preparation method of high-purity low-water lithium bisfluorosulfonimide, and the method comprises the following steps: S1, dissolving the lithium bisfluorosulfonimide crude product in an organic solvent to obtain solution A; S2, adding a water removal agent to the solution A to obtain solution B; S3, adding activated carbon to the solution B, stirring, filtering, concentrating the filtrate, crystallizing, and drying to obtain the high-purity low-water lithium bisfluorosulfonimide product; or the method comprises the following steps: S1, dissolving the lithium bisfluorosulfonimide crude product in an organic solvent to obtain solution C; S2, adding activated carbon powder to the solution C, stirring, filtering, pumping the filtrate into a lithium molecular sieve column, filtering the received solution again, concentrating the filtrate, adding anhydrous dichloromethane to crystallize, and drying to obtain the high-purity low-water lithium bisfluorosulfonimide product. The method is simple in operation and low in cost, the lithium bisfluorosulfonimide obtained by the method has a very low water content and is high in purity.

The utility model discloses a kind of vacuum drying ovens for targeted drug research and development, it is related to vacuum drying technical field, including vertical cabinet, graphite heating plate and object grid, the top of the vertical cabinet is fixedly installed with vacuum gauge by three-way valve, the cavity lower part of the vertical cabinet is provided with electrical control box, vacuum mechanism is installed in the inside of the electrical control box, column storehouse is upwards in the utility model, air in cavity interior is transported outside by the one-way valve of air outlet pipe, column storehouse is downwards, the air in the inside of vertical cabinet is extracted by suction pipe and its one-way valve, such reciprocating motion, gas in the cavity of vertical cabinet is continuously extracted outside, create higher vacuum environment, observe by vacuum gauge, after vertical cabinet inner cavity reaches set vacuum degree, graphite heating plate is controlled and power-on start, heat is transferred to targeted drug. Because ambient pressure is low at this time, solvent boiling point in targeted drug is greatly reduced, only lower temperature can be endothermic evaporation, improve drying efficiency.

The utility model provides a kind of coal tar heating dewatering device, belong to coal tar processing technical field, comprising: oil storage tank, heating coil is equipped in oil storage tank inside;Steam inlet of heating coil is connected with semi coke furnace waste heat boiler by steam pipeline, and steam outlet of heating coil is connected with condensate storage tank by backwater pipe, and exhaust port on condensate storage tank is connected with semi coke furnace waste heat boiler;The top of oil storage tank is equipped with feed inlet, and the bottom of oil storage tank is equipped with oil outlet;The top of oil storage tank side is also equipped with breather valve, and the outlet of breather valve is connected with the inlet of induced draft fan by full seal pipeline, and the outlet of induced draft fan is connected with carbonization furnace by pipeline.The coal tar heating dewatering device can improve coal tar heating efficiency and dewatering efficiency, reduce energy consumption, and has good dewatering effect, reduces operating cost, to solve the problem of higher dewatering cost caused by higher energy consumption, lower thermal efficiency and dewatering efficiency, slower dewatering and longer time consumption of existing dewatering equipment.

The invention belongs to the technical field of distillation, and discloses negative pressure energy-saving distillation equipment which comprises a working frame, a square box is fixedly connected to the bottom of the inner wall of the working frame, bearing blocks are fixedly connected to the two sides of the square box, and a wine storage tank is fixedly connected to the bottom of the inner wall, close to the square box, of the working frame. Liquid is input into the distillation tower through a feeding butterfly valve pipe, an annular heating piece is driven and distills the liquid deposited on the top of an inverted cone bearing plate, meanwhile, in the process of starting a vacuum pump, valves of the feeding butterfly valve pipe and a first butterfly valve pipe are controlled, so that the interior of the distillation tower is in a sealed space, and the vacuum pump generates negative pressure; the gas flow in the distillation tower is extracted through the bent pipe, and the pressure in the distillation tower is reduced, so that the boiling point of liquid is reduced, and components in the liquid are separated at a relatively low temperature, thereby not only saving energy, but also protecting heat-sensitive substances and avoiding degradation or loss caused by high temperature.

The negative pressure tower ethanol purification system comprises a negative pressure tower, a rectifying tower, a reflux tank and a vacuum unit, one end of a gas phase outlet pipe at the top of the negative pressure tower is connected with the rectifying tower, one end of a gas phase outlet pipe at the top of the rectifying tower is connected with a condenser through a condensation pipe, and one end of a discharge pipe of the condenser is connected with the reflux tank; one end of the return tank discharging pipe is connected with a finished product collecting tank. Under the action of negative pressure, an ethanol material mixed with isopropanol and 2-pentanone is introduced into the negative pressure tower, the isopropanol and ethanol are gasified and enter the rectifying tower for rectification, the 2-pentanone flows downwards and is discharged through the first liquid phase discharge pipe, the ethanol is gasified and is condensed through the condenser and then enters the reflux tank, and the isopropanol flows downwards and is discharged through the second liquid phase discharge pipe. In a negative pressure environment, light components and heavy components can be more quickly enriched towards the tower top or the tower bottom, the separation time is shortened, meanwhile, the system pressure is reduced, the boiling point of materials can be obviously reduced, and heat required by separation can be reduced. And through cooperation of the negative pressure tower and the rectifying tower, the ethanol purification effect and efficiency can be improved.

This utility model relates to the field of royal jelly emulsification and compression technology, and discloses a high-efficiency emulsification and concentration device for royal jelly, including a concentration tank. A right connecting plate is connected to the upper half of the surface of the concentration tank, and a right emulsification tank is connected to one side of the top of the connecting plate. A static mixer is connected to the top of the emulsification tank, and a first motor is connected to the central shaft at the top of the emulsification tank. This utility model, through the static mixer, in conjunction with the first motor driving the stirring rod and multiple sets of shearing blades, can fully stir and shear the material, achieving efficient mixing and emulsification and improving product quality. A complex stirring mode is achieved through a rotating component. A second motor drives the main shaft to rotate the cross stirring blades and the bottom stirring blades. At the same time, the rotating gear on the main shaft drives four driven gears and the secondary shaft to rotate, so that the conical stirring blades also participate in the stirring. Multi-directional and multi-layer stirring makes the material more uniformly mixed during the concentration process, improving the concentration efficiency and quality.