233results about "Distillation in rotating vessels" patented technology

Embodiments presented provide for a multirotational counter rotating reactor. The reactor is configured to accept a fluid stream and separate the fluid stream into high quality liquid and gaseous phases through spinning of the sets of discs as well as through performing a heat transfer to the fluid stream.

The invention discloses an intelligent automatic control rotary evaporator, and belongs to the technical field of chemical instruments. An intelligent automatic control rotary evaporator comprises a bottom box and a heating pot, a rotary machine head is installed on the bottom box, a condenser and an evaporation bottle are installed on the rotary machine head, and the lower end of the condenser is connected with a collection bottle; precise adjustment of the height and the inclination angle of the evaporation bottle is achieved through the electric telescopic rod and the rotating shaft, and the assembly and disassembly process of components is simplified through the bottle retreating locking nut, the condensation installation nut and other structures; heating temperature control automation is realized by combining a temperature sensor and a control box, and constant-speed rotation of the evaporating flask is ensured through motor driving; the stability of the condenser is enhanced by means of a first adjusting rod and a fixing sleeve, and material adding in a vacuum environment is achieved by integrating a deflation charging valve and a vacuum extraction opening; the control box integrates a multi-module control function, supports the replacement of parts of different specifications, remarkably improves the adjustment convenience, operation efficiency, temperature control precision and experiment adaptability of equipment, and is high in automation degree.

The utility model discloses a system for step-by-step separation and conversion of tar residues, which comprises an ultrasonic cleaning instrument, the liquid outlet end of the ultrasonic cleaning instrument is connected with a solid-liquid separator through a pipeline, the liquid outlet end of an upper liquid layer of the solid-liquid separator is connected with a delivery pump I through a pipeline, and the delivery pump I is connected with the liquid inlet end of a rotary evaporator I through a pipeline. Concentrated organic matters in the rotary evaporator I are conveyed into a vertically arranged chromatographic column through a pipeline, the lower end of the chromatographic column is connected with a sand core funnel, a collecting tank is placed below an outlet of the sand core funnel, the collecting tank is connected with a conveying pump V through a pipeline, and the conveying pump V is connected with a liquid inlet end of the rotary evaporator II through a pipeline. According to the method, high additional organic matters in the tar residues can be effectively extracted by adopting a mode of synergism of ultrasonic-assisted extraction and column chromatography separation, so that resource utilization of the tar residues is realized. The solvent and the eluent selected in the whole process can be recycled through a rotary evaporator, the operation cost is low, and near-zero emission can be realized.

The invention provides treatment equipment for ethanol and water mixed mother liquor and a sodium nitrate and potassium nitrate purification method, and relates to the technical field of waste liquid treatment, the treatment equipment comprises a flocculation box, a flocculation frame and a driving mechanism; a mounting plate is mounted at the top of the flocculation frame through bolts, the driving mechanism comprises a mounting frame mounted on the upper surface of the mounting plate, and a top plate and a bottom plate are fixedly arranged on the inner wall of the mounting frame. According to the scheme, in the overflowing and liquid discharging process, the water body in the flocculation box can be changed, flocculation groups with small sizes can turn over upwards, and the inclined plate with large initial inclination can block and capture the flocculation groups which turn over upwards, so that the flocculation groups are prevented from overflowing along with water flow through the inclined plate; meanwhile, the linkage plate can be adopted to control the multiple inclined plates to synchronously turn over in a linkage mode to change the inclination, flocculation groups captured on the inclined plates are shaken to be precipitated downwards, and it is guaranteed that overflowing and liquid discharging can be fast, so that waste liquid can be well flocculated, efficient and stable flocculation is guaranteed, and follow-up discharging or recycling is facilitated.

The present disclosure relates to a stripper, separator or desorber device (100). The device comprises a housing (16), an inlet (6) into the housing (16) connected to a supply of target component rich solvent or absorbent (21), and internal configuration in the housing (16) configured to separate the target component from the rich solvent or absorbent (22), a target component outlet (2; 25) to discharge form the housing (16) target component separated from the rich solvent or absorbent; and a solvent or absorbent outlet (7) to discharge from the housing (16) lean solvent or absorbent (21) remaining after separation of the target component from the rich solvent or absorbent (22). Furthermore, the internal configuration in the housing (16) comprises a rotatable rotor (17) having a plurality of essentially axially extending channels (1) therein. Moreover, the present disclosure relates to a system comprising the stripper or desorber device (100), as well as an absorber device (200).

A novel process for desulfurizing spodumene smelting slag using EDTA is presented. This process uses the final solid waste obtained from the water leaching lithium extraction process after sulfuric acid roasting of spodumene as raw material. A prepared EDTA solution is added to the smelting slag containing approximately 10% calcium sulfate, allowing the raw material to fully react with the EDTA solution, thus achieving desulfurization of the smelting slag. Finally, the filtrate is subjected to rotary evaporation precipitation, and the EDTA solution is recovered and recycled. This process has high resource utilization, not only achieving 99.9% desulfurization of the smelting slag in a short time but also enabling the recycling of the EDTA solution. The desulfurization method provided by this process is highly efficient, simple, and transforms waste into valuable resources, increasing economic benefits. Furthermore, it effectively addresses the environmental compatibility issues of solid waste in the existing lithium mining industry, which is of great significance for the sustainable and high-quality development of the lithium battery industry.

The invention discloses osmanthus essential oil and a preparation method thereof. According to the invention, osmanthus fragrans extract is used as a raw material, and the osmanthus fragrans essential oil is prepared by adopting an ethanol crystallization + molecular distillation + n-hexane secondary crystallization technology. The osmanthus essential oil prepared by the method is light yellow to orange red, clear and transparent, has the original rich fragrance of osmanthus, is still transparent liquid under a low-temperature storage condition, and does not have a solidification phenomenon; the method is low in equipment investment, simple to operate and good in repeatability, and has very high commercial application value and prospect.

The invention relates to the technical field of ketone processing, in particular to a multifunctional treatment box for synthesizing 2-fluoro-benzophenone.The multifunctional treatment box comprises a processing treatment box, and a plurality of sets of processing treatment cavities used for synthesizing 2-fluoro-benzophenone are arranged in the processing treatment box from top to bottom; the processing treatment cavity comprises a mixing and dissolving reaction cavity which moves up and down along the upper side area in the processing treatment box, and a contact heating cavity and a water bath cooling cavity which are fixed in the processing treatment box are separately arranged on the upper side and the lower side of the mixing and dissolving reaction cavity at intervals; the bottom of the water bath cooling cavity is communicated with a washing cavity for washing the cooled solution in a pressing manner, the bottom of the washing cavity is communicated with a separation cavity for separating the washed solution, and the bottom end of the separation cavity is communicated with a concentration cavity for rotationally evaporating the separated solution in a control manner; the bottom end of the concentration cavity is communicated with a purification cavity in an automatic detection opening and closing manner. The treatment box can be used for automatically processing ketone in an energy-saving manner, and meanwhile, the low-cost operation is kept.

The invention relates to a green process for extracting natural components of pericarpium citri reticulatae with water and application of the natural components in a beverage. The process comprises the following steps: crushing and drying a dried orange peel raw material; extracting with water at 105-125 DEG C under 0.8-1.5 MPa under a low-oxygen condition to obtain a first extracting solution and first-stage residues; the residues are extracted at the temperature of 130-150 DEG C and the pressure of 1.5-2.2 MPa, and a second extracting solution is obtained; treating the second extracting solution at the temperature of 145-165 DEG C and the pressure of 1.8-2.5 MPa to obtain a low-ester pectin component containing bound flavone; mixing the first extracting solution with the low-methoxyl pectin component, and homogenizing, so that the volatile oil component is dispersed in the water phase containing the low-methoxyl pectin component; and concentrating and / or drying the obtained dispersion to obtain the pericarpium citri reticulatae extract. The extract can be used as a natural flavor additive for beverages.

The utility model provides a low-temperature concentrator, and aims to solve the technical problems that in the process of synthesizing fondaparinux sodium, a traditional rotary evaporator is adopted for concentration and separation, time consumption is long, and products have degradation risks. The concentration barrel is sequentially divided into a middle barrel body and an upper barrel body from bottom to top, and the inner spaces of the middle barrel body and the upper barrel body are mutually communicated. And the middle cylinder is provided with a heating unit. And a vacuum pipeline is arranged at the top of the upper cylinder body. The rotating unit is provided with a rotating table, the rotating table is arranged in the middle barrel, and a containing groove is formed in the rotating table from top to bottom. The turntable is connected with a motor. The liquid injection unit is matched with the rotary table and comprises a liquid pipeline and a liquid injection head. One end of the liquid pipeline penetrates through the side wall of the middle cylinder and then extends to the upper part of the rotary table. The liquid injection head is movably installed at one end of the liquid pipeline. A liquid injection hole set matched with the containing groove is formed in the bottom end of the liquid injection head and used for liquid injection of the containing groove. And through the matching effect between the rotary table and the liquid injection head provided with the liquid injection hole group, the liquid material is distributed into a liquid film in the accommodating groove, and the evaporation area is favorably increased.

A rotary evaporation device capable of adjusting the vacuum degree comprises a rotary evaporator, a condensation system and a vacuum system. The vacuum system comprises a diaphragm pump capable of adjusting the vacuum degree, an air inlet pipe of the diaphragm pump is connected with a first condensation pipe in the rotary evaporator, an exhaust pipe of the diaphragm pump is connected with an outer pipe inlet of a second condensation pipe, a condensing agent of the condensation system is introduced into an S-shaped inner pipe of the second condensation pipe, and the lower end of the second condensation pipe is communicated with a second collection bottle; the condensing system comprises a condensing agent inlet pipe, a condensing agent outlet pipe and a condensing agent return pipe, the condensing agent inlet pipe is connected with the cold pump and an inlet of the snakelike inner pipe of the first condensing pipe, and the condensing agent outlet pipe is connected with an outlet of the snakelike inner pipe of the first condensing pipe and an inlet of the snakelike inner pipe of the second condensing pipe; and the condensing agent return pipe is used for connecting an outlet of the S-shaped inner pipe of the second condensing pipe and an aspirator in the cold system. According to the device, the proper vacuum degree can be adjusted according to different solvents, and the solvents can be more sufficiently collected.

The rotary evaporation device comprises a rotating assembly, a container base, a sealing assembly and a heating assembly, the container base is arranged on the rotating assembly, the container base is used for containing a container containing a sample to be subjected to rotary evaporation, the rotating assembly is used for driving the container base to rotate, and the sealing assembly can move in the first direction to seal or unseal an opening of the container. The sealing assembly is provided with an exhaust channel, one end of the exhaust channel is used for being communicated with an opening of the container, the heating assembly can move in the second direction to be close to or away from the container base, and the heating assembly is used for heating the container, so that the rotary evaporation device can achieve automation of the sample drying process through the rotating assembly, the sealing assembly and the heating assembly; the labor cost is reduced, and the experiment precision and efficiency are improved.

The utility model relates to rotary evaporator bottle technical field, concretely relates to a kind of anti-overflow stirring assembly for rotary evaporator bottle, the anti-overflow stirring assembly for rotary evaporator bottle includes stirring rod and at least one stirring vane, the stirring rod is inserted into the rod body inside rotary evaporator and is provided with at least one described stirring vane, multiple stirring holes are uniformly opened on the stirring vane. When the rotary evaporator starts to rotate in actual application, the stirring rod in the bottle rotates with the rotary evaporator, and at the same time, the blade surface of the stirring vane on the stirring rod continuously shears the liquid in the bottle, thereby playing a stirring role, making the liquid in the bottle evenly heated, to prevent violent boiling. Further based on multiple stirring holes opened on the stirring vane, while stirring liquid, liquid can also be turned upside down based on stirring hole, thereby further improving stirring efficiency, making the liquid in the bottle more evenly heated, effectively preventing liquid from violent boiling.

The utility model relates to the technical field of experimental instruments, and particularly discloses a rotary evaporator. Comprising an evaporation assembly and a water bath; the top of the water bath kettle is provided with an opening and a matched kettle cover; the pot cover is provided with a partial opening. The opening is communicated with the interior of the water bath kettle; the water bath kettle comprises an inner container and a shell; the inner container is arranged in the shell; the pot cover is matched with the mounting groove to cover the inner container, and the pot cover rotates in the mounting groove to adjust the orientation of the opening. A cleaning mechanism is further arranged on one side of the water bath kettle; the cleaning mechanism comprises a cleaning cylinder and a nozzle; the nozzle is communicated with the pressure tank; the pressure tank communicates with the water supply unit; a cleaning opening capable of being opened and closed is formed in a rotary bottle of the evaporation assembly; and the nozzle enters or exits from the pressure tank through the cleaning air cylinder from the cleaning port for cleaning operation. The cleaning mechanism disclosed by the utility model can select proper cleaning strength to carry out targeted cleaning according to different types and degrees of attached pollutants in the rotary bottle.

The invention provides a preparation process of palladium chloride dihydrate, which comprises the following steps: S1, respectively adding palladium powder, high-purity water and a reducing agent into a reactor, stirring and heating, and carrying out constant-temperature reaction and standing for layering to obtain activated palladium powder; s2, hydrochloric acid is added into the activated palladium powder, then stirring and heating are conducted, hydrogen peroxide is dropwise added, a reaction is conducted till the palladium powder is completely dissolved, and a dissolved solution is filtered; s3, transferring the filtrate into an evaporator for dissolving, and then carrying out vacuum concentration; s4, repeating the step S3 for 3-5 times until the pH value of the solution reaches 1-5.5; and S5, carrying out vacuum concentration on the solution, and obtaining palladium chloride dihydrate when the palladium content reaches a set value. The direct recovery rate of the preparation process is high, the raw material loss can be effectively reduced, the production benefit is improved, the operation process is simple, and the prepared palladium chloride dihydrate has the nitrate-free characteristic, also has good water solubility and can meet the use requirements in different scenes.

The invention relates to the technical field of active ingredient extraction, and particularly provides an extraction method for classifying and screening active ingredients, raw materials are subjected to low-temperature freeze-drying pretreatment by adopting supercritical CO2, and treatment is performed for 4-6 hours under the conditions of minus 40-minus 20 DEG C and 8-12 MPa, so that the active ingredients are reserved to the greatest extent; through gradient ultrasonic-assisted extraction of ultrapure water, a 50% ethanol solution and a 95% ethanol solution, step-by-step separation of water-soluble, alcohol-soluble and fat-soluble components is realized; carrying out multi-dimensional purification by using a composite chromatographic column containing a 0.2 mu m ceramic membrane layer, a macroporous adsorption resin layer and a sephadex layer; a two-channel biosensor array is adopted to synchronously detect a cell response signal and a molecule binding signal, and components with the activity intensity reaching 80% or above are screened; and finally, carrying out vacuum rotary evaporation concentration and spray drying to obtain a finished product, and completing system purity verification through a high performance liquid chromatography-mass spectrometry technology to form a complete quality control system.

The utility model discloses a high-sealing rotary evaporator, and relates to the technical field of evaporators. The device comprises a base, one end of the base is fixedly connected with a water bath heater, one end of the base is provided with a three-way pipe, the top of the three-way pipe is fixedly connected with a condensation pipe, the bottom of the three-way pipe is fixedly connected with a collecting pipe, the input end of the three-way pipe is fixedly connected with a connecting pipe, and the top of the connecting pipe is fixedly connected with a vacuum pump; the input end of the connecting pipe is rotationally connected with an air guide pipe. When the locking threaded ring is pulled to be arranged at the input end of the air guide pipe in a sleeving mode, the locking threaded sleeve is screwed to be in threaded connection with the locking threaded ring, one end of the T-shaped sealing ring is pushed to be inserted into the first rubber sealing ring, and therefore the first rubber sealing ring is extruded to deform and fills a gap between the locking threaded ring and the air guide pipe; therefore, the connection stability and sealing performance between the evaporation beaker and the gas guide pipe are effectively improved, and the evaporation efficiency of the device and the accuracy of experimental results are improved.

The utility model relates to the technical field of rotary evaporators, in particular to an anti-suck-back rotary evaporator which comprises a rack, a rotating mechanism is arranged on the upper side of the rack and comprises a rotating rod rotationally arranged on one side of the rack, a connecting column is fixed to one end of the rotating rod, and a through channel is formed in the inner side of the connecting column. A first motor is fixed to the upper side face of the connecting column, the output end of the first motor penetrates through the connecting column to be fixed to the upper side of the adjusting ball valve, and a transmission space is formed in the end, located in the through channel, in the connecting column and in the rotating rod; the other end of the transmission space is rotationally provided with a belt wheel, and the belt wheel and the transmission belt limiting table are sleeved with a transmission belt. The rotary evaporator solves the problem that the conventional rotary evaporator can only prevent the suck-back phenomenon by adjusting parameters in advance and cannot deal with the sudden suck-back condition.

The utility model discloses a precious metal recovery rotary evaporator which comprises a working table, a support is fixedly installed on the upper surface of the working table, a rotary evaporator body is arranged on the front face of the support, a shell is fixedly installed on the upper surface of the working table, and an electric cylinder is fixedly installed on the inner bottom wall of the shell. A sliding shell is fixedly installed at the telescopic end of the electric cylinder, a gear motor is fixedly installed on the right side face of the sliding shell, and a rotating rod is fixedly installed at the output end of the gear motor. According to the device, an electric push rod is arranged to drive a sliding block to slide in a sliding opening, then a transparent plate can be moved to the front of the water bath kettle for protection, the problem that hot water in the water bath kettle splashes outwards to scald workers during use is solved, and the safety during use is improved; the arranged gear motor is used for driving the rotating rod and the water bath kettle to turn over, and meanwhile, under the cooperation of the gear motor and the electric cylinder, water in the water bath kettle can be rapidly discharged.

The utility model discloses a splash-proof ball with liquid adding and discharging functions. The splash-proof ball is arranged between a rotating shaft of the rotary evaporator and an evaporating flask and comprises a hollow ball body, a frosted interface I and a frosted interface II which are fixed on the hollow ball body, a double-hole pipe which is fixed with the frosted interface II and extends into the hollow ball body, a sample adding pipe fixed on the frosted interface II, and a liquid discharging pipe fixed on the hollow ball body. The structure of the splash-proof ball is optimized, so that the splash-proof ball has liquid adding and liquid discharging functions, evaporation liquid can be conveniently supplemented to the evaporation bottle and condensate can be conveniently discharged on the premise that the splash-proof ball is not disassembled, the splash-proof ball does not need to be disassembled in actual rotary evaporation operation, the splash-proof ball is more suitable for continuous rotary evaporation treatment, and the production efficiency is improved. Convenience is provided for rotary evaporation of a large amount of rotary evaporation liquid.

The embodiments presented here provide for a method and a design of heat effective rotated packed beds wherein rotating packed bed technologies have heat transfer capabilities to enhance separation, absorbing, desorbing, and interphase heat exchange capabilities. Such beds are used in industries including heavy processing, chemical, petrochemical and pharmaceutical industries.

The invention provides a Chinese yam and mulberry polysaccharide extraction decompression rotary evaporation device, and relates to the technical field of Chinese yam and mulberry processing equipment.The Chinese yam and mulberry polysaccharide extraction decompression rotary evaporation device comprises a smashing tank, a filter box is clamped and matched to the bottom of the smashing tank, an evaporation barrel is installed at the bottom of the filter box, a mounting plate is arranged at the top of the filter box, and a filter inlet is formed in the center of the top of the mounting plate; two symmetrical racks are fixed to the top of the mounting plate. The smashing tank, the filter box and the evaporation barrel are used for treating raw materials in a staged mode and communicated with one another, the smashing effect of the raw materials is improved, a solvent is added into the evaporation barrel, the contact area of the raw materials and the solvent is increased through the smashing tank with the smashing function, finally, evaporation treatment can be directly conducted on the evaporation barrel, and the efficiency is improved. The scraping plate is driven to move along the first transmission chain, and the filtering plate in contact with the top of the eccentric wheel is driven to jolt up and down, so that the filtering plate is prevented from being blocked, and the filtering efficiency of the raw materials is improved.

The utility model provides a rotary evaporator which comprises a rack, a machine head, a heating pot, a glass shaft, a condenser, an evaporation bottle and a collection bottle, and further comprises a clamping piece installed at the end, away from the condenser, of the glass shaft, the clamping piece is used for clamping evaporation bottles of different specifications and calibers, and the clamping piece comprises an installation plate fixedly connected to the end, away from the condenser, of the glass shaft; the mounting ring is fixedly connected to the side, away from the condenser, of the mounting plate; the clamping plates are slidably connected to the mounting plate in the radial direction of the mounting ring, the multiple clamping plates are distributed around the axis of the mounting ring in a circumferential array mode, and the clamping plates are used for clamping an evaporation bottle; and the adjusting mechanism is mounted on the mounting plate and used for controlling the clamping plate to move in the radial direction of the mounting ring. According to the rotary evaporator, evaporation flasks with different calibers can be clamped, and the use universality of the rotary evaporator is improved.

The invention relates to an evaporator, in particular to a multi-manifold rotary evaporator and application of the multi-manifold rotary evaporator in a cattle bone clear soup experiment, the multi-manifold rotary evaporator comprises a supporting frame body and a buffer tank installed on the supporting frame body, and the buffer tank is connected with an evaporation piece installed on the supporting frame body. A collection connecting port of the buffer tank is communicated with a collection bottle for collecting condensed liquid; the device further comprises a condensation tank communicated with the buffer tank, a conical pipe with the passing area gradually reduced in the feeding direction is formed in the position, close to a feeding port of the condensation tank, in the condensation tank, a collecting groove is formed between the conical pipe and the inner wall of the condensation tank, and the collecting groove is communicated with the collecting connector through a communicating piece. The air inlet and the liquid outlet of the condensation tank are separately arranged, so that the problem that the liquefied material cannot smoothly fall due to the action of air inlet pressure is prevented, and meanwhile, the problem that the heat exchange efficiency becomes low due to the fact that the liquefied material is dispersed in the condensation tank under the impact force of the vaporized material because the liquefied material cannot flow out can be effectively prevented.

The invention discloses a transition metal substituted supported polyacid metal organic framework catalyst and a preparation method and application thereof, and belongs to the technical field of catalysts, Ni / Co is introduced into Keggin type polyacid through an ion exchange method, transition metal substituted heteropolyacid is synthesized, then the transition metal substituted heteropolyacid is packaged in UIO-66 through an impregnation method, and the transition metal substituted supported polyacid metal organic framework catalyst is obtained. The transition metal substituted supported polyacid metal organic framework catalyst is obtained. The invention also discloses the transition metal substituted supported polyacid metal organic framework catalyst prepared by the preparation method and application of the transition metal substituted supported polyacid metal organic framework catalyst in lignin conversion. The transition metal substituted supported polyacid metal organic framework catalyst prepared by the invention can efficiently oxidize and degrade lignin and simultaneously degrade aromatic compounds of the lignin, and the product and the yield are relatively obviously improved.

The utility model relates to the technical field of concentrated extracting solution, and discloses a rotary evaporator for extracting enteromorpha polysaccharide, which solves the problems in the background technology, and comprises a bottom plate, a rotary evaporator main body is arranged on the bottom plate, the rotary evaporator main body comprises a heating kettle and a distilling flask, the distillation bottle is arranged above the heating kettle, a rotating shaft is arranged in the distillation bottle and is arranged in the center of the distillation bottle, a scraper blade is arranged on the rotating shaft, an inner magnetic rotor is arranged on the rotating shaft, the bottom plate is provided with an extension part, the extension part is provided with a top plate parallel to the bottom plate, and the top plate is provided with an outer magnetic rotor. The top plate is provided with a driving motor, the output end of the driving motor is provided with an outer magnetic rotor, and the outer magnetic rotor is matched with the inner magnetic rotor. The rotary evaporator has the effect of solving the problems that when a traditional rotary evaporator is used for treating a high-viscosity solution, a liquid film is not uniform, the evaporation rate is reduced, and residues are prone to adhering to the wall.

The three-axis stacker crane for the simulation experiment comprises a fixed bottom plate, a portal frame is fixedly connected to the top of the fixed bottom plate, a first electric sliding rail is fixedly connected to the top of the portal frame, and the first electric sliding rail is slidably connected with a sliding frame through a sliding block; the inner wall of the sliding frame is fixedly connected with a second electric sliding rail. The invention relates to the technical field of three-axis stacking machines. Through cooperative operation of a high-pressure air pump, an air spraying pipe, an oil sludge storage box, a multi-stage filter, a miniature centrifugal machine, an activated carbon filter cylinder, a miniature rotary evaporator, an oil conveying hose and an oil storage bin, the equipment can refine cleaned oil sludge into lubricating oil, and the loss rate of the lubricating oil of the equipment is reduced; and by means of mutual cooperation of a multi-stage filter, a fourth electric sliding rail, a sliding cleaning brush, a connecting box and a chipping storage bin, chippings can be collected and stored, so that the chippings can be prevented from blocking the multi-stage filter, and a worker can recover the chippings more conveniently.

The utility model discloses a rotary distillation collection device relates to distillation device technical field, include: water -bath, the inside of water -bath is provided with rotary evaporation bottle, the rear of water -bath is installed with elevating displacement piece, elevating displacement piece includes support, the outer wall on support front end surface is installed with two groups slide rails left and right symmetrical, two groups the outer wall on slide rail is all installed with displacement sliding block, two groups the outer wall on displacement sliding block is all installed with L type assembly frame, two groups the lower bottom of assembly frame is all installed with connecting column, the lower extreme of connecting column is provided with cover, two groups displacement sliding block between the setting up has the connecting frame, the top of connecting frame is installed with drive cylinder. The existing cylinder only through telescopic end connection extension plate, the protective cover is without lateral restraint, and the problem that the water vapor is taken away together when lifting, and the water bath water amount is affected is solved.

The utility model relates to the technical field of drying devices, and discloses a calcium hydrophosphate rotary evaporation device convenient to regulate and control pressure, which comprises a drying cylinder, a feed port is arranged at the top of the drying cylinder, and a pressure regulating component is arranged at the top of the drying cylinder. According to the calcium hydrophosphate rotary evaporation device capable of conveniently regulating and controlling the pressure, the piston moves upwards, the air pressure in the drying cylinder is reduced, the boiling point of water is also reduced, the drying efficiency is improved, drying can be completed at a lower temperature after the air pressure is reduced, decomposition or coking of materials caused by high temperature is reduced, and the product quality is ensured; and then the fan is started to violently blow air into the drying cylinder, the calcium hydrogen phosphate powder in the drying cylinder is blown into the air outlet pipe and an external collecting device, collection of the calcium hydrogen phosphate powder is achieved, structural fatigue, sealing piece damage or mechanical part deformation caused by sudden pressure change of equipment is avoided, and the durability of the equipment is improved.