727results about "Flash distillation" patented technology

The utility model relates to a sludge drying system coupled with a heat storage system. The sludge drying system comprises a heat storage module, a sludge drying module, a waste heat collecting module and a waste heat upgrading module, the heat storage module is used for storing peak regulation steam energy of the power plant; the sludge drying module is connected with the heat storage module, comprises a plurality of drying machines which are connected in parallel, and is used for drying sludge by utilizing low-pressure steam; the waste heat collecting module is connected with the sludge drying module and is used for recycling high-temperature waste gas waste heat; the waste heat quality improving module is connected with the waste heat collecting module and used for improving the quality of the waste heat and recycling the waste heat. The utility model has the beneficial effects that the drying technology is coupled with a boiler system, so that steam energy which is difficult to store is converted into storable and combustible fuel, the deep peak regulation of a power plant is facilitated, the scale of a heat storage system is reduced, and the economical efficiency of the system is improved.

The invention belongs to the field of industrial flue gas purification technology and energy conservation, and relates to a system and a method for removing condensable particulate matters through multi-field coupling synergistic enhanced condensation, the system comprises a desulfurization tower, a flash tank, a condensation structure, a liquid collecting tank and a cold water spraying layer, a slurry distribution layer of the flash tank is connected with a tower kettle of the desulfurization tower, and a flash slurry pool of the flash tank is connected with the slurry spraying layer; the liquid collecting tank, the condensation structure and the cold water spraying layer are sequentially arranged from bottom to top and are integrated in the same shell to form a secondary removal device capable of condensing particles, the secondary removal device is communicated with the top of the desulfurization tower, and flue gas channels are uniformly distributed on the liquid collecting tank; the condensation structure is formed by combining a plurality of obliquely-arranged wave-shaped condensation plates in parallel, the surfaces of the wave-shaped condensation plates are arranged in a hydrophobic mode, a plurality of protrusions and pits are arranged on the faces, facing flue gas, of the wave-shaped condensation plates, and condensable particles in the flue gas can be effectively removed.

The invention discloses a method and a device for removing alcamines in NMP (N-Methyl Pyrrolidone), which comprises the following steps: reacting anhydride substances with NMP containing the alcamines substances to generate NMP containing amide substances; the NMP solution containing the amide substances is rectified to remove the amide substances, and NMP with the alcohol amine substances removed is obtained; the boiling point of the product is increased in a manner that anhydride substances react with alcohol amine substances in NMP to generate amide, so that the difference value between the reacted product and the boiling point of NMP is greater than the difference value between the alcohol amine substances and the boiling point of NMP, high-purity NMP is more easily separated in a subsequent rectifying tower, the energy consumption of the rectifying tower for separating the product and impurities can be reduced, and the production cost is reduced. In addition, due to the fact that different alcohol amine additives do not need to be added additionally, universality is improved, meanwhile, the anhydride reaction belongs to amidation reaction, reaction products are more stable, free amine cannot be decomposed in the high-temperature heating process, and therefore the purity of the separated NMP can be further improved.

The present application relates to a kind of heat pump rectification systems based on heat shock flash circulation lift heat exchange, including rectifying tower, lift membrane reboiler, first throttling valve and heat shock heater, the secondary steam outlet of rectifying tower is connected with the heating steam import of lift membrane reboiler, the discharge port of the bottom of rectifying tower is connected with the cold side flow channel import of heat shock heater, and the cold side flow channel export of heat shock heater is connected with the feed inlet of lift membrane reboiler by first throttling valve;The vapor-liquid mixture outlet of lift membrane reboiler is connected with the column still liquid reflux port of rectifying tower, and the steam condensate outlet of lift membrane reboiler is connected with condensate tank, and the liquid outlet of condensate tank is connected with the condensate reflux port of rectifying tower side wall.The present application is combined by heat shock pressurization energy storage and throttling flash kinetic energy release, provides independent and stable lift membrane kinetic energy for lift membrane heat exchange, so that the flow pattern in the tube of lift membrane reboiler directly enters the efficient annular flow stage, improves the industrial applicability of lift membrane heat exchange technology in heat pump rectification system.

The present application relates to a kind of hot exciting flash evaporation loop lift heat exchanger, including upper head, lower head, cylinder, several heat exchange tubes, the upper end surface of cylinder and the upper head form cavity I between, the lower end surface of cylinder and the lower head form cavity II between, cavity I, cavity II and the inner cavity of cylinder are not communicated with each other between, heat exchange tube is fixed in the inside of cylinder by tube sheet, the upper end of heat exchange tube is placed in cavity I and is communicated with cavity I, lower end and cavity II are communicated, cylinder includes lift section cylinder and hot exciting section cylinder, heat exchange tube includes lift section heat exchange tube and hot exciting section heat exchange tube, lift section heat exchange tube and hot exciting section heat exchange tube are communicated by throttling component between, the inner diameter of throttling component is less than the inner diameter of hot exciting section heat exchange tube.The heat exchanger of the present application is provided with a kind of hot exciting flash evaporation loop lift, will hot exciting pressurization energy storage, throttling flash evaporation kinetic energy release, loop lift heat exchange and vapor-liquid separation function integration in same equipment, solve the problem of traditional lift section heat exchanger dependence big temperature difference.

The utility model relates to the technical field of hydrochloric acid desorption, in particular to a hydrochloric acid desorption device which comprises a hydrochloric acid desorption tower, and the top of the hydrochloric acid desorption tower is sequentially communicated with a primary condensing device, a secondary condensing device, a freezing device, a demister and a hydrogen chloride buffer tank; one side wall of the hydrochloric acid desorption tower is communicated with a hydrochloric acid storage tank; the side wall of the hydrochloric acid desorption tower is also communicated with a calcium chloride solution storage tank; a bottom liquid outlet of the hydrochloric acid desorption tower is communicated with a first inlet of the thermosyphon reboiler, the thermosyphon reboiler is provided with a first outlet and a second outlet, the first outlet is communicated with a liquid inlet of the hydrochloric acid desorption tower, and the second outlet is sequentially communicated with the multi-effect evaporation device and the flash separation tank; and the flash separation tank is respectively communicated with a calcium chloride solution storage tank and a second inlet of the thermosyphon type reboiler. According to the utility model, the equipment investment is reduced, the concentration efficiency of the calcium chloride solution is improved, the energy consumption is reduced, and calcium chloride is prevented from flowing back into the desorption tower to cause blockage.

The invention belongs to the field of chemical purification, and discloses a method and equipment for separating carbon tetrafluoride in nitrogen trifluoride through pressurized absorption of a deep eutectic solvent, and the method comprises the following steps: (1) increasing the pressure of nitrogen trifluoride crude gas to 0.5 MPa or above; (2) cooling the crude gas to below 40 DEG C through a crude gas feeding heat exchanger; (3) through the absorption tower, the crude gas entering from the tower kettle is in countercurrent contact with the eutectic solvent entering from the tower top, and the content of carbon tetrafluoride in the crude gas is reduced to 5 ppm or below; (4) reducing the content of carbon tetrafluoride in the eutectic solvent to be less than 1ppm through a two-stage flash tank; and (5) reducing the temperature of the eutectic solvent to be below 30 DEG C through a eutectic solvent discharging heat exchanger and a eutectic solvent cooler, and circulating the eutectic solvent back to the absorption tower from the bottom of the absorption tower. According to the method, the quality of the nitrogen trifluoride product can be improved, the carbon tetrafluoride impurity in the nitrogen trifluoride purity can be reduced to 5ppm, and the cost is low.

The invention relates to the technical field of aluminum oxide production, and discloses evaporation forced-effect jet flash evaporation equipment which comprises a storage tank, a heating box is arranged outside the storage tank, an air guide pipe is arranged on the side wall of the storage tank, a flash evaporator is arranged outside the air guide pipe, a conveying pipe is arranged in the heating box, and a flash evaporator is arranged in the conveying pipe. A discharging table is fixedly connected to the lower side of the flash evaporator, a mounting block is fixedly connected to the side wall of the flash evaporator, a flow dividing pipe is fixedly connected to one end of the mounting block, a guiding assembly is arranged on the side wall of the flow dividing pipe, and a flow guiding block is fixedly connected to the interior of the flow dividing pipe. The steam pushes the cleaning assembly to rotate, meanwhile, the steam firstly passes through the flow guide block, and tiny crystals mixed in the steam are preliminarily filtered under the filtration of the flow guide block, so that the effects of preheating the mother liquor in advance, realizing self-circulation of the mother liquor, reducing the use of a circulating pump and further reducing the power consumption of the device can be achieved.

The invention relates to the technical field of chemical recovery, and particularly discloses a carbon tetrachloride removal system and process, the system comprises a washing tower and a carbon tetrachloride removal assembly, the washing tower is used for introducing a solvent and a phosgene material; the tower top of the washing tower is used for outputting treated substances; a tower kettle of the washing tower is communicated with the carbon tetrachloride removal assembly, and the carbon tetrachloride removal assembly is used for removing carbon tetrachloride in materials from the washing tower. The solvent is introduced into the washing tower to wash the phosgene material, and after the solvent is introduced, the washing tower is not pure phosgene equipment, so that the safety performance is improved; and compared with the prior art that carbon tetrachloride is removed by utilizing a phosgene rectifying tower and a solvent refining tower, the combination of the washing tower and the carbon tetrachloride removal assembly is beneficial to reducing the energy consumption.

The invention discloses a drainage flash heat supply system of a once-through boiler under low load and an operation method of the drainage flash heat supply system. The drainage flash heat supply system comprises a drainage flash control valve, a drainage flash tank, a heat supply steam throttle valve, an electric heater and a condensation drainage recirculation pump which are sequentially arranged behind a water storage tank. When a unit undertakes a peak regulation task and a boiler enters a wet state operation mode under an ultra-low load working condition, drain water generated by a steam-water separator is introduced into a flash evaporation heat supply system, generated high-pressure steam is used for industrial heat supply, the steam meets the requirements of pressure and superheat degree of industrial steam through a throttling valve and an electric heater, and the heat supply efficiency is improved. The drain water produced in the flash tank is re-introduced into the feed line through a condensed drain water recirculation pump. According to the system, power supply and heat supply can be decoupled during low-load operation of a unit, meanwhile, the stable combustion requirement of boiler operation is met, and the hydrodynamic safety of each water cooling wall is protected.

The invention discloses flash tank equipment which comprises a flash tank, a feeding pipe, an exhaust pipe, a conical first heating flow guide body, a first oil way, an annular second heating flow guide body and a second oil way. And a tank wall convex part is arranged on the inner surface of the tank wall of the flash tank. A first oil cavity is formed in the first heating flow guide body, the first heating flow guide body is suspended below the spraying head at the lower end of the feeding pipe and is positioned above the convex part of the tank wall, and the first oil way is connected with the first heating flow guide body and is communicated with the first oil cavity. A second oil cavity is formed in the second heating flow guide body, the second heating flow guide body is arranged below the tip of the convex part of the tank wall, and the second oil way is connected with the second heating flow guide body and communicated with the second oil cavity, so that the heat transfer mode is improved, the heat transfer area and the heat transfer intensity are effectively increased, and the retention time of fluid materials is prolonged; the temperature of the lower half part of the flash tank is increased, so that the flash efficiency is improved, and the quality and the performance of polymer products are ensured.

The utility model relates to the technical field of ammonia distillation equipment, in particular to a microwave indirect heating ammonia distillation tower. Comprising a tower body, a wastewater atomization device, a microwave heating device, a liquid sealing disc, a tower disc and a dephlegmator, an atomizing nozzle of the wastewater atomizing device is mounted in the tower body and located at the middle lower part, and the atomizing nozzle downwards sprays atomized wastewater; the microwave heating device is installed outside the tower body and located below the wastewater atomization device, and atomized wastewater is flashed and vaporized through microwave heating of the microwave heating device; the liquid seal disc and the tower disc are mounted in the tower body, the liquid seal disc is positioned above the wastewater atomization device, and the tower disc is positioned above the liquid seal disc; and the dephlegmator is fixedly connected to the top of the tower body. The method has the advantages of high efficiency, low energy consumption, low cost and small environmental pollution.

The invention relates to the technical field of chemical equipment, and discloses a sodium carbonate production system adopting an ammonia-soda process. The system for producing sodium carbonate by the ammonia-soda process comprises a thin liquid distillation tower and a flash evaporation module. The thin liquid distillation tower is used for discharging waste thin liquid; the flash evaporation module comprises a second flash evaporation device and a water injection assembly; a steam outlet of the second flash tank is communicated with a steam inlet of the thin liquid distillation tower; the water inlet end of the water injection assembly is communicated with the thin liquid distillation tower, and the water outlet end of the water injection assembly is located in the second flash tank and used for discharging waste thin liquid to flush flash steam in the second flash tank. According to the invention, by arranging the water injection assembly, the waste thin liquid discharged from the thin liquid distillation tower is introduced into the second flash tank for flushing flash steam in the second flash tank so as to flush away droplets in the flash steam, and the content of calcium ions introduced into the thin liquid distillation tower can be reduced, so that the calcium ions in the waste thin liquid are reduced and even eliminated; and the waste thin liquid discharged from the thin liquid distillation tower can be used as filtering washing water.

The utility model belongs to the technical field of asphalt modification, and particularly relates to a modification system for tar distillation asphalt, which comprises a tar distillation tower, a tubular furnace, a flash tower and a modified asphalt storage tank, and is additionally provided with an asphalt circulating tower, and the output end of the tar distillation tower is connected with the new material input end of the asphalt circulating tower; the liquid output end of the asphalt circulating tower is connected with the input end of the tubular furnace, the output end of the tubular furnace is respectively connected with the circulating material input end of the asphalt circulating tower and the input end of the flash tower, and the circulating material input end of the asphalt circulating tower and the input end of the flash tower are respectively provided with a stop valve. And the liquid output end of the flash tower is connected with the input end of the modified asphalt storage tank. According to the utility model, the asphalt circulating tower is additionally arranged, and the asphalt can be selectively conveyed into the asphalt circulating tower to be circularly heated or conveyed into the flash tower to be flashed by utilizing the stop valve on the tubular furnace, so that the quality of the modified asphalt is controllable.

The utility model relates to the technical field of boiler sewage waste heat recovery, and discloses a boiler sewage waste heat flash recovery device which comprises a flash tank, a water inlet pipe arranged at the input end of the flash tank, a pressure gauge arranged at the top of the water inlet pipe, a steam outlet and a connecting pipe arranged at the top of the flash tank. The connecting pipe is arranged at the top of the flash tank, and the mixing box and the water pump are arranged at the input end of the connecting pipe, so that when the water pump is connected with an external water pipe, the water pump injects water into the flash tank from the connecting pipe after passing through the mixing box, the interior of the flash tank is flushed, and then flushing water can be discharged from the water outlet in the bottom; and meanwhile, cleaning liquid can be added into the mixing box to be matched with flushing water for cleaning, the effect that the flash tank is conveniently mixed with the cleaning liquid to be cleaned is achieved, manpower is saved, and operation is easy and convenient.

The invention relates to an alkaline electrolytic water hydrogen production coupled heavy water continuous primary concentrated water return system and a control method, and the system comprises a hydrogen production system used for producing primary hydrogen; the alkali liquor circulating system is connected with the hydrogen production system and is used for supplementing raw material water of the hydrogen production unit and continuously and circularly reflowing alkali liquor; the control system comprises a control module; the hydrogen outlet flow control assembly, the gas-liquid separation tank top pipeline pressure control valve, the hydrogen buffer tank inlet flow control assembly, the flash tank inlet pressure control assembly and the hydrogen production unit water taking point flow control assembly are respectively connected with the control module and are arranged on the alkali liquor circulating system; the gas-liquid separation unit comprises a water point flow control assembly, a raw water pipeline flow control assembly, a flash tank bottom liquid phase outlet pipeline flow control assembly, a heavy water booster pump outlet pipeline flow control assembly, a gas-liquid separation tank liquid level control assembly and a heavy water booster pump outlet control valve.

The invention relates to the technical field of cadmium-reducing soil conditioners, in particular to an acid soil cadmium-reducing conditioner and intelligent production device.The acid soil cadmium-reducing conditioner comprises a supporting assembly and a tank body, a groove is formed in one side of the tank body, a discharging valve is arranged at the bottom end of the tank body, a tank cover is arranged at the upper end of the tank body, a material overturning assembly is arranged in the tank body, and a vertical filter press is arranged on one side of the tank body; a flash dryer is arranged on one side of the vertical filter press, the vertical filter press is connected with a discharging valve at the bottom end of the tank body through a connecting pipe, a material conveying mechanism is arranged on one side of the tank body, a fixing block is arranged in the material conveying mechanism, a fixing cylinder is arranged at the bottom end of the fixing block, a through hole is formed in one side of the fixing cylinder, a material conveying pipe is arranged on one side of the fixing cylinder, and a feeding hopper is arranged on the material conveying pipe; a fixing block is arranged in the tank body, an auxiliary gear is arranged on the fixing block, a screw rod is arranged on the auxiliary gear, a mixing mechanism is arranged in the tank body, a limiting ring is arranged in the mixing mechanism, a servo motor is arranged in the mixing mechanism, a stirring assembly is arranged at the output end of the servo motor, and a transmission rod is arranged in the stirring assembly.

A process for the preparation of ethylene oxide in which the efficiency of separating ethylene from carbon dioxide is improved.

A combined vessel includes a stripping section for removing acidic gases from an acidic water stream and a direct-contact heat exchanger section for heating an ash water stream, to improve heat and mass transfer in water stream treatment and recirculation for gasification processes.

The utility model provides a comprehensive utilization device for process wastewater in a polyvinyl alcohol manufacturing and recycling process, which is provided with a pressurized rectifying tower and a second rectifying tower, wastewater generated in a polyvinyl alcohol production process is used as a raw material, is fed into the pressurized rectifying tower after being subjected to heat exchange through a feeding preheater, and is subjected to heat exchange with a second reboiler; a kettle-out material serves as a heat source to be fed into a feeding preheater and then is fed into a flash tank to be subjected to flash evaporation after heat exchange is completed, the flash tank is subjected to grading treatment according to different components, a gas phase at the top of the pressurized rectifying tower serves as a heat source to be fed into a second reboiler, formed condensate is fed back to a pressurized reflux tank to be subjected to reflux and distillation, and a gas phase at the top of a second rectifying tower is divided into two paths to be fed out; one path is used for air blowing, and the other path is provided with a regulating valve, is sent into the condenser for condensation and then returns to the second reflux tank. According to the utility model, a thermal coupling technology is introduced, heat in waste water is recycled, maximum utilization of energy is realized, and methanol and PVAC resin contained in the waste water can be removed at the same time.

The utility model discloses a refining device and a refining system for ultra-clean polypropylene. The refining device comprises a slurry premixing tank, a washing container, a centrifugal filter, a solvent recovery tower, a reflux tank, a fluidized bed dryer and a gas-liquid separator. According to the device, materials and energy are fully recycled, ash such as metal substances and oligomer entrained by polypropylene powder can be effectively reduced, and even electrical-grade polypropylene can be obtained. According to the utility model, on the premise of obtaining a refined polypropylene product, environment-friendly, low-consumption and stable long-period operation can be realized.

The flash evaporation kettle comprises a kettle body, a plurality of evenly-distributed supporting rods are connected to the position, close to the bottom, of the outer wall of the kettle body, a round block is connected to the position, close to the top, in the kettle body in a sliding mode, the bottom of the round block is movably connected with an upper pipe body, the top of the upper pipe body is arranged in a closed mode, and the bottom of the upper pipe body is connected with a flash evaporation device. The bottom of the upper pipe body is connected with a lower pipe body through a bolt, the bottom of the lower pipe body is closed, a feeding pipe is connected to the position, close to the top, of the left side of the kettle body in a penetrating mode, a feeding port is formed in the left side of the upper pipe body, and the bottom of the kettle body is communicated with a discharging pipe. According to the technical scheme, through mutual cooperation of the round block, the electric push rod, the rotating motor, the upper pipe body, the lower pipe body and other components, intermittent feeding can be conducted, effective and uniform flash evaporation can be conducted, the flash evaporation efficiency is improved, effective retention and swinging can be conducted, the full contact reaction can be conducted, and the service life of the device is prolonged. The contact reaction efficiency is improved.

The utility model relates to the field of chemical equipment, and particularly discloses a flash tank for processing cyclohexanone by a dilute method, which is used for solving the problem of low gas-liquid separation efficiency in the prior art. Comprising a flash tank body, a gas phase outlet used for discharging separated gas is formed in the upper end of the flash tank body, an isolation ring plate is further rotationally arranged in the flash tank body, a feeding port used for feeding is formed in the lower side of the isolation ring plate, and a coalescence separation module used for assisting solid-liquid separation is arranged at the lower end of the isolation ring plate. And the lower end of the coalescence separation module is connected with the isolation bottom ring. Rotation torque is constructed in the flash tank body, so that airflow rotates, the rotating airflow assists in solid-liquid separation, in addition, an auxiliary liquid gathering structure is further arranged, liquid is rapidly separated from the airflow, the separated liquid is rapidly discharged under the action of centrifugal force, the rotation torque is generated through airflow power, and solid-liquid separation is achieved. Extra power is not needed, so that the cost is reduced.

The utility model discloses an ethylene recovery device which comprises a flash tank, a stirring tank, a first heat exchanger, a second heat exchanger and a gas-liquid separation tank, the top of the flash tank and the top of the stirring tank are both communicated with the gas-liquid separation tank, the first heat exchanger is communicated between the flash tank and the gas-liquid separation tank, and the second heat exchanger is communicated between the stirring tank and the gas-liquid separation tank. The second heat exchanger is communicated between the stirring tank and the gas-liquid separation tank, the bottom of the flash tank is communicated with the stirring tank, and a heating piece is arranged on the stirring tank. According to the device, high-purity ethylene can be effectively separated, the loss of ethylene in a solvent can be reduced, and the recycling rate of ethylene is improved.

The present application relates to the technical field of coal-to-ethanol, and discloses a low-temperature heat combined utilization system of a coal-to-ethanol device, which comprises a heat medium storage tank, a flash steam-gray water heat exchanger, a heat medium-flash steam heat exchanger, an ethanol refining tower body, an ethanol light component removal tower body and a methanol ester removal tower body, the heat medium storage tank is connected with the heat medium-flash steam heat exchanger through a heat medium booster pump, and the flash steam-gray water heat exchanger is connected with the heat medium-flash steam heat exchanger; the ethanol refining tower body is connected with an ethanol refining tower heat medium reboiler and an ethanol refining tower steam reboiler, the ethanol light component removal tower body is connected with an ethanol light component removal tower heat medium reboiler and an ethanol light component removal tower steam reboiler, and the methanol ester removal tower body is connected with a methanol ester removal tower heat medium reboiler and a methanol ester removal tower steam reboiler; and the heat medium storage tank, the heat medium-flash steam heat exchanger, the ethanol refining tower heat medium reboiler, the ethanol light component removal tower heat medium reboiler and the methanol ester removal tower heat medium reboiler form a closed loop.

A method for producing a high purity product sulfide from an olefin is provided. 【Solution means】Hydrogen sulfide or R 1 SH, and a method for producing a high purity product sulfide from an olefin of the formula C x H (2x) comprising the steps of: feeding hydrogen sulfide or R 1 SH, and an olefin of the formula C x H (2x) to a reactor system; separating the reactor effluent stream into a first portion and a second portion; recycling the first portion of the reactor effluent stream to the reactor system; and feeding the second portion of the reactor effluent stream to a sulfide separation system, the sulfide separation system comprising: at least one recycle stream comprising at least a portion of unreacted hydrogen sulfide, unreacted olefin of the formula C x H (2x) unreacted R 1 SH, and other components, and a product stream comprising the high purity product sulfide.

The invention discloses a flash tank drainage system which comprises a flash tank, a condensate water input pipeline is connected to the flash tank, a drainage pipe is arranged at the bottom of the flash tank, a first control valve is installed on the drainage pipe, a liquid level meter is installed on the flash tank, and a second control valve is installed on the liquid level meter. When the liquid level meter detects that the liquid level height of the liquid in the flash tank reaches a high-level threshold value, the first control valve is controlled to be opened, and when the liquid level meter detects that the liquid level height of the liquid in the flash tank reaches a low-level threshold value, the first control valve is controlled to be closed. According to the scheme, the residual pressure of the flash tank is utilized, the magnetic turning plate liquid level meter is adopted to output signals to control opening and closing of the stop valve for water drainage, the rapid, efficient, economical and reliable water drainage effect is achieved, and safe and reliable operation of a power system is guaranteed. The scheme does not need a water pump to pump and drain water, saves electricity, reduces equipment investment, and can greatly reduce operation cost.

The invention relates to polymer desolventizing separation equipment, a solvent removal device and a solvent removal method, in particular to the technical field of polymer recovery, the polymer desolventizing separation equipment comprises a polymer solution inlet end, an annular baffle area, a spiral-flow type umbrella-shaped distributor, a pore plate area and a polymer outlet end which are communicated in sequence; a solvent outlet is formed in the annular baffle plate area. According to the polymer desolventizing agent separation equipment provided by the invention, the specific spiral-flow type umbrella-shaped distributor is matched with the pore plate flow equalizing assembly, during working, a polymer solution enters the separation equipment after being heated and is converted into a spiral-flow wall-attached flow through the spiral-flow type umbrella-shaped distributor, and the spiral flow generates centrifugal acceleration and forms a synergistic separation force with gravity; and then a spiral columnar laminar flow beam is formed through the pore plate flow equalizing assembly, efficient phase splitting is achieved in a phase splitting area in a full liquid state, finally, a top light phase is recycled, and the content of a bottom heavy phase polymer is increased to 60%-70%.

The application discloses a method for treating oligomers in mother liquor, which utilizes a first front mother liquor tank and a second front mother liquor tank, combines with the limited amount of solvent removed in the low-pressure flash evaporation and deep flash evaporation process, realizes effective separation of the oligomers in the mother liquor, can carry out efficient recovery of the solvent twice, solves the problems of the oligomers blocking the container, the heat exchanger, the pump and the pipeline and the like in the solvent recovery system, and achieves good technical application effect; moreover, the method has the advantages of less equipment investment, low production cost, easy implementation, simple operation process, saved manpower, safety and environmental protection, and suitability for the oligomer treatment system of the polyolefin industry, pilot test and small test test device.