638results about "Distillation in boilers/stills" patented technology

The invention discloses a distillation device and method for preparing methylamine methyl squarate, and particularly relates to the technical field of distillation.The distillation device for preparing methylamine methyl squarate comprises a reaction kettle and further comprises a condensation tank, sealing end covers are detachably installed at the two ends of the condensation tank, and flow dividing disc bodies are installed at the two ends in the condensation tank. According to the condensation tank, the design of the multiple condensation pipe fittings is adopted, condensation recycling can be conducted in a flow dividing mode, the condensation structure design is optimized, by arranging the isolation units, steam and condensate can be controlled in the condensation pipe fittings to achieve separation, steam flowing is optimized, steam is prevented from being accumulated and flowing excessively in a concentrated mode, and the condensation effect is improved. The condensation pipe fitting is arranged, condensation operation of the rear section of the condensation pipe fitting is facilitated, the diversion pipe fitting is controlled through the diversion pipe fitting and the suction mechanism, steam of the front section of the condensation pipe fitting is continuously introduced into the middle section of the condensation pipe fitting, concentrated accumulation of the steam in the condensation pipe fitting is avoided, effective diversion can be completed, and the condensation efficiency is improved.

The invention belongs to the technical field of resource regeneration, and particularly relates to a method for recycling hydrochloric acid and germanium through direct two-stage distillation after germanium chlorination distillation, which comprises germanium chlorination distillation, first-stage positive pressure acid steaming, second-stage negative pressure acid steaming and kettle stopping and slag liquid discharging. According to the invention, two-stage acid distillation is directly carried out in the original production equipment system after germanium chlorination distillation, so that the innovation of integrated continuous production of germanium chlorination distillation and acid distillation in the same equipment system is realized, the process is more energy-saving and economic, the operation is simpler and more convenient, the equipment utilization rate is higher, and the environment is more friendly; the recycling rate of hydrochloric acid is up to 60% or above; a one-stage positive-pressure acid steaming process is adopted, high-concentration hydrochloric acid with the HCl molar concentration larger than or equal to 9.5 mol / L is regenerated and can be directly returned to germanium chlorination distillation for use, and synchronous limit recovery of residual germanium in germanium chlorination distillation residues is achieved; therefore, full recycling of hydrochloric acid and germanium in germanium chlorination distillation waste acid and waste residues is realized.

A multistage treatment system for a liquid, the system including a first stage with a first boiling vessel and a first heater configured to boil the liquid in the first boiling vessel at a first pressure. The boiling of the liquid generates vapour including volatile contaminants. A first vapour outlet is configured to vent the vapour from the first boiling vessel. A liquid outlet provides for fluid flow from the first boiling vessel to a subsequent stage. A second stage comprises a second boiling vessel configured to receive liquid from the liquid outlet and a second heater to boil liquid in the second boiling vessel to generate vapour. A condenser receives the vapour from the second boiling vessel and condenses the vapour to a liquid that is treated. An outlet is configured to dispense treated liquid.

The invention provides a deslagging control system and a deslagging control method of a distillation kettle, which can start deslagging at a proper time, ensure stable and timely deslagging, avoid equipment blockage caused by untimely deslagging or material loss caused by insufficient distillation caused by premature deslagging, reduce the dependence on artificial experience, reduce the labor cost and improve the production efficiency. The device can improve the convenience of production management and ensure the stability and reliability of the distillation process, and comprises a deformation amplification bracket which is fixedly connected with a stirring speed reducer of the distillation kettle and is used for amplifying the deformation generated when the stirring speed reducer drives to stir; the distance sensor is arranged on the deformation amplification bracket; the sensing block is arranged corresponding to the distance sensor; the distance sensor detects the distance between the distance sensor and the sensing block and is used for reflecting the deformation condition of the stirring speed reducer; the control unit is connected with the distance sensor, and the control unit controls the distillation kettle to discharge slag according to the detected distance between the distance sensor and the sensing block.

The utility model relates to the technical field of plant component extraction, specifically to a natural plant effective component extraction device based on membrane separation, comprising a distillation kettle, wherein an exhaust pipe is installed at the exhaust port on the top of the distillation kettle; a collecting box for collecting the extract is provided below the condenser; a purification part is provided below the collecting box; through the provided distillation kettle and condenser, it is convenient to extract the extract by distillation extraction; through the provided collecting box and purification part, it is convenient to purify the extract through multiple microporous filter membranes, thereby facilitating the extraction of effective components in the extract; through the provided double-headed screw and supporting plate, etc., the end cover can be conveniently disassembled and assembled by lifting and lowering the supporting plate. The design changes the connection method between the shell and the end cover of the traditional membrane separator, improves the convenience of disassembly and assembly of the membrane separator, improves the disassembly and assembly efficiency of the microporous filter membrane, and ensures the extraction efficiency of the natural plant effective components.

The invention discloses a male tussah concentrated solution preparation device and method. The device comprises an equipment frame, the primary extraction assembly comprises a squeezing mechanism and a standing layering mechanism, the squeezing mechanism is provided with a first feeding port, the squeezing mechanism is communicated with the standing layering mechanism, a supernatant extraction mechanism is arranged on the standing layering mechanism, and the squeezing mechanism and the standing layering mechanism are both arranged on the equipment frame; the extracting solution secondary treatment assembly comprises a distillation and concentration mechanism and a freezing mechanism, the distillation and concentration mechanism is communicated with the supernatant extraction mechanism, and the freezing mechanism is communicated with the distillation and concentration mechanism through a first liquid pump; the extracting solution centrifugal treatment assembly comprises a centrifugal mechanism, a collecting mechanism is arranged outside the centrifugal mechanism, and the centrifugal mechanism is communicated with the freezing mechanism through a second liquid pump. The device is relatively high in integration degree, relatively good in operation continuity and more convenient in production, and the time of material conversion between procedures is shortened, so that the production efficiency is improved.

The utility model relates to an electromagnetic heating waste oil deslagging system, and belongs to the field of waste oil regeneration, the electromagnetic heating waste oil deslagging system comprises a reaction kettle, a circulating pump, an electric heater, an electric heating groove, a slag oil tank, a regulating valve, a switch valve and an extraction piece, the circulating pump is communicated with the reaction kettle, and the electric heater is communicated with the circulating pump and is communicated with the reaction kettle; the electric heating tank is arranged on the circulating pump in a communicating mode, the residue oil tank is arranged on the electric heating tank in a communicating mode, the adjusting valve is arranged at the communicating position of the circulating pump and the electric heating tank, the switch valve is arranged at the communicating position of the electric heating tank and the residue oil tank, and the extraction part is arranged on the residue oil tank and used for discharging residue oil in the electric heating tank into the residue oil tank. The waste oil regeneration device has the advantages that the probability of coking and blocking of waste oil is reduced, time consumed for equipment maintenance is shortened, the heating temperature of the waste oil is reasonably distributed through the electric heater and the electric heating groove, the heating efficiency is improved, energy consumption is reduced, and the problems of low production efficiency and high recovery cost in the waste oil regeneration process are effectively solved.

The invention relates to the technical field of methanol recovery, in particular to a methanol recovery device of MTBE (methyl tert-butyl ether) production equipment, which comprises a distillation outer barrel, a distillation inner barrel fixedly mounted in the distillation outer barrel, a barrel cover fixedly mounted at the top of the distillation outer barrel, a liquid inlet pipe fixedly connected to the top of the barrel cover, and a stirring assembly rotatably mounted in the distillation inner barrel. A heating assembly is fixedly installed in the stirring assembly, a rotating assembly is arranged on the periphery of the stirring assembly, an interlayer is arranged between the distillation outer barrel and the distillation inner barrel, a spiral plate is fixedly installed in the interlayer, a collecting assembly is fixedly connected to the bottom of the distillation outer barrel, and a cooling assembly is arranged at the end, away from the distillation outer barrel, of the collecting assembly. The bottoms of the cooling assembly and the distillation outer barrel are connected with the same material collecting box for collecting liquid methanol. The stirring assembly and the heating assembly are integrated in the distillation inner barrel, so that synchronous operation of stirring and heating is realized, and the problem of local overheating or scaling caused by a fixed heating area is avoided.

The invention relates to the technical field of distillation kettles, in particular to a distillation kettle and a stirring device thereof. The stirring device comprises an inner cylinder, a rotating shaft and a scraping plate, the inner cylinder is vertically arranged, an upper half cavity and a lower half cavity are formed in the inner cylinder, and the upper half cavity is located above the lower half cavity; the rotating shaft is rotationally arranged on the inner cylinder; a first channel is formed in the rotating shaft and can be communicated with the upper half cavity and the lower half cavity; the scraping plate is slidably arranged on the rotating shaft in the radial direction of the rotating shaft, the scraping plate is located in the lower half cavity, a liquid outlet hole is formed in the scraping plate, and the first channel communicates with the lower half cavity through the liquid outlet hole. Through cooperative arrangement of a scraping plate and a rotating shaft, after the rotating shaft rotates, the scraping plate slides in the radial direction of the rotating shaft under the action of centrifugal force, a solution in a liquid outlet hole is discharged into a lower half cavity under the action of centrifugal force, at the moment, negative pressure is formed in a first channel, and a solution in an upper half cavity is sucked into the first channel and then discharged into the lower half cavity; exchange of solutions in the upper half cavity and the lower half cavity is realized, so that the solutions in the inner cylinder are mixed more sufficiently.

The utility model discloses a purification device for fluoroethylene carbonate, and relates to the technical field of fluoroethylene carbonate processing. The fluoroethylene carbonate purification device comprises a distillation kettle, wherein a filtering mechanism for filtering and separating fluoroethylene carbonate is fixedly mounted on one side of the top of the distillation kettle. Through the high adsorption effect of the nano-porous plate, particles and impurities in fluoroethylene carbonate liquid can be conveniently adsorbed and separated, the constant-speed motor is powered on and operates to drive the baffle to rotate, and the impurities and the particles adsorbed on the surface of the nano-porous plate can be pushed into the pipe fitting through the rotating baffle. The collected impurities and particles are conveyed into the storage box through the pipe fitting to be stored and collected, the separated fluoroethylene carbonate liquid is conveyed into the distillation still through the conveying pipe to be purified, and the purity of fluoroethylene carbonate is remarkably improved through matched use of the nano-porous plate and the storage box.

The utility model belongs to the technical field of distillation devices, and particularly relates to a waste oil distillation device which comprises a distillation still, supporting legs, a baffle, a heater and a feeding port, the distillation device is arranged in the distillation still and comprises a cleaning unit, a distillation unit and a circulating unit, and the cleaning unit is arranged in the distillation still. According to the waste oil distillation device, by arranging the cleaning unit and pushing a handle up and down, a connecting rod drives a scraping ring to move up and down along the interior of a distillation still, coke on the inner wall of the distillation still is scraped, when the upper surface of a baffle needs to be cleaned, the handle is pushed downwards to make the bottom of the scraping ring make contact with the top of the baffle, and then a rotating rod is rotated to drive the scraping ring to rotate; and finally, the waste material pipe is opened, so that waste materials are discharged, cleaning is convenient, and the problems that in the background technology, in the waste oil distillation process, the inner wall of the distillation still can generate coking, and cleaning is inconvenient when the distillation still is cleaned are solved.

The utility model discloses a distillation kettle for extracting essence and perfume raw materials, which comprises a kettle body, a feed hopper is arranged on one side of the top surface of the kettle body, a filter screen is arranged on the surface of one side of the feed hopper in a penetrating manner, and one end of the filter screen extends into a slot formed in one side of the inner wall of the feed hopper. According to the utility model, essence and perfume raw materials are added into the kettle body through the feed hopper, the motor drives the rotating rod to rotate, so that the stirring blades on the rotating rod rotate, the raw materials in the kettle body can be stirred, and the raw materials in the kettle body can be heated through the heating plate in the inner cavity; the raw materials can be uniformly heated to react in the kettle body, and when the raw materials enter the kettle body, the essence and perfume raw materials can be filtered by using the filter screen in the feeding hopper, so that impurities in the essence and perfume raw materials are separated from the essence and perfume raw materials, and the production and processing quality of the essence and perfume can be conveniently improved.

A hydrocarbon cleaning agent recovery and industrial wastewater reduction device belongs to the technical field of evaporation and concentration and comprises a distillation kettle, an evaporator, a first partition plate heat exchanger, a second partition plate heat exchanger, a cleaning agent liquid storage tank and a distilled water liquid storage tank. The distillation still is connected with the first partition plate heat exchanger and the second partition plate heat exchanger through the evaporator, the first partition plate heat exchanger is connected with the cleaning agent storage tank, the second partition plate heat exchanger is connected with the distilled water storage tank, the first partition plate heat exchanger is connected with the distillation still, and the second partition plate heat exchanger is connected with the evaporator. The equipment can simultaneously treat waste cleaning agents and waste water, does not need a cooling-water machine of traditional recovery equipment and a core component compressor of an evaporator, greatly saves equipment cost, and greatly reduces waste liquid treatment cost.

The present application relates to a traditional Chinese medicine hot reflux extraction device and an extraction process control method, which achieves stable control of the concentration of the extraction solvent during the hot reflux extraction process of traditional Chinese medicine, and achieves stable control of the quality of the concentrated extract, thereby achieving the goals of improving extraction efficiency, ensuring the stability of the extract quality, and reducing energy consumption. The present invention uses an online detection system to achieve online detection of the alcohol content of the solution in the tank. By configuring the ethanol preparation tank to adjust the concentration of the added ethanol online, the concentration of the ethanol solvent in the tank can be accurately controlled, thereby ensuring the stability of the quality of the hot reflux extract.

The application discloses a kind of purification devices for diphenylamine production, it is related to chemical purification technical field, including purification tank body, stirring mixing assembly and lifting mixed flow component are equipped in the purification tank body, stirring mixing assembly and lifting mixed flow component are jointly connected comprehensive drive component;The lifting mixed flow component includes multiple dispersion pipes arranged in the purification tank body, multiple dispersion pipes are evenly distributed in the circumferential of purification tank body, lifting column is slidably connected in each dispersion pipe, the top end of lifting column is fixedly connected with traction rope, the diphenylamine solution in the purification tank body can be mixed as a whole by being equipped with stirring mixing assembly, the diphenylamine solution can be fine flow mixing by being equipped with lifting mixed flow component using pressure-driven mode, stirring mixing assembly and lifting mixed flow component are jointly used to effectively ensure that the diphenylamine solution in the purification tank body is efficiently mixed, so that diphenylamine is more efficiently purified, and the use effect is good.

The invention discloses an ultra-clean high-purity electronic grade hydrochloric acid purification reactor for semiconductors, and relates to the technical field of hydrochloric acid purification, the ultra-clean high-purity electronic grade hydrochloric acid purification reactor comprises a rectification device, a cooling device, a filtering device and a reflux pump, the rectification device is communicated with the cooling device through a pipeline, an inlet of the reflux pump is communicated with the cooling device, and an outlet of the reflux pump is communicated with the rectification device; the cooling device is communicated with the filtering device through a pipeline; the rectification device comprises a rectification kettle and stroke adjusting assemblies, a purification cavity is formed in the rectification kettle, the stroke adjusting assemblies are arranged in the purification cavity, each stroke adjusting assembly comprises a bearing platform and a sliding platform, the opposite ends of the bearing platform and the sliding platform are each provided with filler, the bearing platform is provided with a plurality of adjusting rods, the lower side of the sliding platform is provided with a sleeve shell, and the filler is provided with a plurality of replacement runners. The number of edges of the cross section of the replacement runner is not less than pentagons.

The utility model provides a Chinese mugwort essential oil refining device which comprises a main tank body, a distillation mechanism is fixedly arranged in the main tank body, the distillation mechanism comprises an inner tank, the inner tank is fixedly arranged at the top of the inner side of the main tank body, four inner cavities are formed in the inner tank, and four fixing covers are fixed at the bottom of the inner tank. The inner cavity is formed in the inner tank, Chinese mugwort is placed in the inner cavity in a layered mode through the layer plates, water vapor can enter the inner cavity through the flow dividing pipe, the fixing cover and the air holes and flows upwards along the inner cavity, the Chinese mugwort in the inner cavity can be conveniently and evenly distilled, and the Chinese mugwort processing efficiency is improved.

The invention discloses a rapid distillation device for 2-chloro-1-(1-chlorocyclopropyl) ethanone and a processing technology, and relates to the technical field of distillation devices. The distillation kettle comprises a distillation kettle main body, a steam inlet pipe is fixedly connected to the lower part of the outside of the distillation kettle main body, a spraying device for circularly distilling 2-chloro-1-(1-chlorocyclopropyl) ethanone is arranged at the top of the distillation kettle main body, and a steam outlet pipe is fixedly connected to the top of the distillation kettle main body. Through cooperation of the motor, the rotating shaft, the flowering-shaped baffle, the vertical Z-shaped rod, the first layering frame, the connecting plate, the second layering frame, the first notch and the second notch, 2-chloro-1-(1-chlorocyclopropyl) ethanone in the first layering frame can enter the second layering frame through the first notch; one part of the second layering frame flows to the bottom of the distillation kettle main body through the second notch, so that a dispersed flowing state is formed, and the rapid distillation of 2-chloro-1-(1-chlorocyclopropyl) ethanone is ensured.

The utility model relates to the field of multi-stage evaporation and concentration equipment, and discloses multi-stage evaporation and concentration equipment which comprises a distillation still, a groove is fixedly connected to the inner wall of the top side of the distillation still, a barrel cover is arranged on the inner wall of the groove, and sliding buckles are fixedly connected to the left side and the right side of the barrel cover. Fixing blocks are fixedly connected to the left side and the right side of the top end of the distillation kettle, the outer walls of the fixing blocks are arranged on the inner walls of the sliding buckles, a heating plate is arranged on the inner wall of the distillation kettle, a rack is fixedly connected to the bottom side of the heating plate, and a gear is connected to the bottom side of the rack in a meshed mode. According to the utility model, the barrel cover of the distillation kettle is convenient to install through the matching between the fixed block and the barrel cover, the maintenance and overhaul become more efficient through the cover which is convenient to quickly disassemble and assemble, the heating plate on the inner wall of the distillation kettle is rotatably heated through the matching between the heating plate and the rack, and heat can be more uniformly transferred to liquid through rotation; the heat exchange process is optimized, and the overall energy efficiency is improved.

The utility model relates to distillation condensing device technical field discloses a kind of novel high-efficiency crude distillation condensing device, including distillation kettle, the distillation kettle is hollow cavity, bottom is provided with heating mechanism, top is communicated steam outlet, spiral condenser tube, the spiral condenser tube is connected with steam outlet, collector, the collector is communicated with spiral condenser tube outlet, for receiving condensate, temperature sensor, the temperature sensor is installed at steam outlet, vacuum pump, the vacuum pump is communicated with the top of distillation kettle by connecting pipe, cooling water circulation system, the cooling water circulation system includes cooling water tank and circulating pump. In the utility model, through the heat exchange structure of spiral condenser tube and double-layer spiral cooling jacket, cooperate the negative pressure distillation design of vacuum pump, effectively reduce liquid boiling point and increase condensing area, significantly improve distillation efficiency and energy utilization rate, while distillation kettle inner wall hydrophobic coating reduces liquid adhesion, further optimizes distillation process.

The apparatus may include a memory storing instructions and a processor configured to execute the instructions to determine an initial mass of the sample, distill the sample to at least a thermal destruction temperature, record vapor temperature values, liquid temperature values, and vapor pressure values ​​associated with the sample at a set of time points during the distillation, and determine a residual mass of the sample. The processor may be further configured to generate a pressure curve based on the vapor pressure values, calculate a summary integral surface of the generated pressure curve, and generate a distillation curve relating the vapor temperature values ​​and liquid temperature values ​​to a mass percentage of the sample evaporated based on the calculated summary integral surface, the initial mass of the sample, and the residual mass of the sample.

The present invention discloses an NMP batch distillation device and process. The NMP batch distillation device includes a batch distillation tower, a scraper falling-film evaporation reboiler, a reboiler pump, a tower top condenser, a tower top vacuum condenser, a raw material and intermediate product transfer pump, a water receiving tank, an intermediate product receiving tank, a product receiving tank, and a reflux controller. The tower top condenser is connected to the reflux controller. The reflux controller is connected to the batch distillation tower, the water receiving tank, the intermediate product receiving tank, and the product receiving tank. The raw material and intermediate product transfer pump is connected to the batch distillation tower, the intermediate product receiving tank, and a raw material feed pipe. The reboiler pump is connected to the batch distillation tower and the scraper falling-film evaporation reboiler, and the reboiler pump is a gas-liquid mixing pump. The scraper falling-film evaporation reboiler is connected to the batch distillation tower. According to the NMP batch distillation device and process, a structure and a manufacturing procedure are simple, and a recovered and purified amount of NMP is large.

The utility model is suitable for the technical field of acid liquor recycling, and provides an acid liquor recycling device which comprises a base, the heating cylinder is fixed at the top of the base and is used for increasing temperature; the storage cylinder is arranged in the heating cylinder and is used for storing the filtered acid liquor; the filter cylinder is detachably mounted at the top of the storage cylinder and is used for filtering acid liquor; and the collecting hopper is fixed at the top of the filter drum and is used for guiding acid liquor to be added. According to the acid liquor recycling device provided by the scheme, the acid liquor is heated through the heating cylinder, impurities are filtered through the filter cylinder, the acid liquor is conveniently added through the collecting hopper, the air pump and the air inlet pipe generate negative pressure, and the negative pressure monitoring piece monitors the negative pressure state in real time; acid gas is guided out through a connecting pipe, the acid gas is buffered and stored through a buffer box, the acid gas is liquefied through a low-temperature liquefaction pipe, and the liquefied acid liquid is stored through a collecting box, so that efficient filtering, collecting and recycling of the acid liquid are achieved.

The utility model discloses a coking anti-blocking mechanism for a second-line distillation outlet of reduced pressure distillation, and particularly relates to the technical field of distillation kettles, the coking anti-blocking mechanism comprises a distillation kettle, a first distillation port and a second distillation port are respectively arranged on the distillation kettle, and a mounting groove is arranged in the second distillation port. A plurality of heating pieces which are arranged in a linear array are arranged in the mounting groove, an outlet pipe is arranged on the second distillation opening, and a plurality of guide grooves which are arranged in a linear array are formed in the outlet pipe. According to the distillation kettle provided by the utility model, exhaust and liquid discharge are realized through the first distillation port and the second distillation port on the distillation kettle, installation of a plurality of heating elements is realized through the installation groove of the second distillation port, liquid discharge is realized through the outlet pipe on the second distillation port, and liquid is guided through a plurality of guide grooves on the outlet pipe; the liquid flow rate is increased.

The utility model discloses an intelligent device for efficiently extracting mulberry anthocyanin, which belongs to the technical field of anthocyanin and comprises a crushing box, a mixing box, a collecting box, a crushing component, a mixing component and an evaporating component. The crushed mulberry puree enters the mixing box, an ethanol solution is injected and mixed, the mixed liquid is injected into the evaporation boxes to be evaporated, evaporation can be conducted at the same time through the multiple evaporation boxes, the mulberries are continuously treated through the crushing box and the mixing box, and the mulberry puree is more uniform. The evaporation assembly enables filtrate filtered by the filtering assembly to enter one evaporation box to be evaporated, and a third driving motor rotates to drive a rotating disc to rotate, so that a new evaporation box is located below a second electromagnetic valve to receive new filtrate; after the evaporated evaporation box is moved to the position above the collection box, a third driving motor is started, and the extracting solution is put into the collection box to be stored.

The invention discloses distillation equipment for ginsenoside extraction, belongs to the technical field of ginsenoside distillation extraction, and aims to solve the problems that a mechanical stirring mode is easy to cause that ginseng slices are broken to generate fine residues and the dissolution amount of impurities is increased, a stirring blind area exists in stirring, and the distillation extraction effect is influenced. A first sliding rail and a second sliding rail are symmetrically and fixedly arranged on the circumferential outer wall of a distillation retort, a first sliding assembly is arranged on the first sliding rail, a second sliding assembly is arranged on the second sliding rail, a transmission assembly is arranged on the circumferential outer wall of the distillation retort, and a connecting assembly is embedded in an output shaft of the transmission assembly; a mounting frame is rotationally arranged on the side wall of the inner cavity of the distillation retort, and a first discharging assembly, a second discharging assembly, a third discharging assembly and a top plate are sequentially arranged on the mounting frame from bottom to top. And a stirring blind area can be avoided.

The invention relates to the technical field of distillation, in particular to a distillation device for production and collection of triisopropyl borate and a distillation method.The distillation device comprises a distillation device body, the distillation device body comprises a distillation retort, the distillation retort comprises a retort body and a cover body internally provided with a rotating core structure, and the rotating core structure is composed of a mixing component and a guiding component which are coaxially connected; the mixing part is of a hollow spiral structure, and the guiding part is of a solid spiral structure. Heat generated by the spiral heating pipe in the wall of the tank body and the annular heat-conducting oil disc at the bottom can be quickly conducted into materials in the distillation cavity through a through heat conduction channel in the hollow mixing screw piece, the drainage screw piece rotates to drive the heated gaseous materials to form a spiral ascending flow field, and the spiral ascending flow field is formed by combining an umbrella-shaped flow guide cover; steam can be directionally guided to a gas state conveying opening, and disordered diffusion and reverse mixing of the steam are reduced; in addition, the raw materials directly enter the gas-liquid balance area through the middle feeding port, and the back-mixing probability is further reduced.

The impurity removal and crystallization device comprises a catalyst settling kettle, one side of the catalyst settling kettle is provided with a crude product feed port, the top of the catalyst settling kettle is provided with a hydrogen feed port, the bottom of the catalyst settling kettle is provided with a catalyst recovery discharge port, and the catalyst recovery discharge port is provided with an impurity removal and crystallization device. One side, far away from the crude product feeding hole, of the catalyst settling kettle is provided with a first purified liquid discharging hole, one end, far away from the catalyst settling kettle, of the first purified liquid discharging hole is communicated with a first membrane filtering kettle, and the outer wall of the first membrane filtering kettle is provided with a first solid isolate discharging hole; a second purified liquid discharge hole is formed in the outer wall of the first membrane filtration kettle. The utility model relates to the technical field of chemical product production, and solves the problems that in the prior art, when impurity removal and crystallization are carried out on a p-aminobenzene sulfonic acid crude product, the crude product is not effectively decolorized, so that the color of a recrystallized product is not pure enough, and the appearance quality and the market acceptability of the product are influenced.

The invention relates to the technical field of purification, and provides a nicotine rectification device and a nicotine purification method, and the purification method comprises the following steps: adding a nicotine crude product into the rectification device for total reflux treatment; the rectification device is subjected to total reflux treatment and then is subjected to extraction treatment, and the extraction treatment comprises the following steps: extracting and detecting tower top fractions of the rectification device, after the composition of the tower top fractions is stable, extracting from the middle section of the rectification device to obtain a nicotine product, and continuously extracting the tower top fractions. According to the invention, the nicotine crude product is added into the rectification device and then is subjected to total reflux treatment, so that the high-purity nicotine product can be continuously extracted from the middle section of the rectification device. In addition, the heating time of nicotine in the purification process is short, and the problem of nicotine deterioration is effectively reduced. The method has the characteristics of high rectification yield, high purity, high efficiency and the like.

The utility model provides a lavender essential oil refining device, which relates to the technical field of lavender essential oil refining and comprises a distillation retort, the distillation retort comprises a retort body and a top cover, a heating mechanism is arranged at the bottom of the retort body, and the heating mechanism comprises a heating shell fixed with the bottom of the retort body. According to the lavender stirring device, the power assembly can drive the second driven bevel gear and the first driven bevel gear to rotate in opposite directions, then the second driven bevel gear and the first driven bevel gear drive the rotating shaft and the rotating drum to rotate respectively, the stirring rods can stir lavender in two directions under the driving of the rotating drum and the rotating shaft, and therefore the lavender stirring effect is improved. The stirring structure is simplified, when the pressure in the tank body is too large, the piston is pressed to extrude the sliding rod, the communicating space of the pressure reducing shell and the tank body is enlarged, more lavender steam can be contained, the pressure in the tank body is reduced, and the pressure in the tank body can be reduced without discharging the lavender steam.