33 results about "Vegetable oil refining" patented technology

The invention relates to the technical field of grease processing, in particular to a preparation method for extracting refined vegetable oil fatty acid. A preparation method for refined vegetable oil fatty acid extraction comprises the following steps: vegetable oil refining treatment and refined vegetable oil fatty acid separation and extraction. In the vegetable oil refining treatment process, the degummed vegetable oil is subjected to deacidification and decolorization treatment by using the modified rice hull-based porous carbon, so that pigments, free fatty acids and heavy metal components in the vegetable oil can be efficiently adsorbed, the effects of adsorption, deacidification and decolorization are achieved at the same time, and the vegetable oil refining efficiency is effectively improved; vegetable oil refining quality is improved, so that the extraction effect of refined vegetable oil fatty acid is improved; in the separation and extraction process of fatty acid in the refined vegetable oil, the contact between urea and saturated fatty acid in the refined vegetable oil can be promoted by adding the crystallization inclusion additive, and a stably-clathrated composite crystal is quickly formed, so that the extraction purity of unsaturated fatty acid is improved.

The invention relates to the technical field of vegetable oil refining, in particular to a production method of extra-high oryzanol rice oil. The method comprises the following steps: adding wood active carbon into deacidified oil, carrying out oryzanol adsorption operation, filtering to obtain high-oryzanol active carbon, adding food-grade ethanol into the high-oryzanol active carbon, stirring, and removing an active carbon solid phase to obtain an ethanol desorption solution containing oryzanol; mixing the ethanol desorption solution with the deacidified oil, and evaporating ethanol to obtain an ultra-high oryzanol rice oil intermediate product; and carrying out secondary decoloration, physical deodorization and winterization degreasing on the ultra-high oryzanol rice oil intermediate product to obtain the finished ultra-high oryzanol rice oil. The ultra-high oryzanol rice oil with the oryzanol content larger than or equal to 4% (40000 ppm) and the light-color rice oil with the color meeting the first grade of the national standard GB 19112 of rice bran oil can be stably produced at the same time, and the method is simple, safe and low in cost.

The application discloses a preparation method of conjugated methyl linoleate and a feed composition containing the conjugated methyl linoleate. The method uses a byproduct of plant oil refining, i.e. deodorized distillate, as a source of linoleic acid, adds an alkali catalyst and a phase transfer catalyst to catalyze the conjugation of methyl linoleate to prepare the conjugated methyl linoleate, and a feed composition containing the prepared conjugated methyl linoleate as an active ingredient. In particular, a small amount of phase transfer catalyst can greatly improve the rate and conversion rate of the conjugation reaction, reduce the amount of alkali, and make the conjugation reaction condition mild, which can be carried out under normal pressure. The reaction is unique in that a cheap byproduct in the plant oil refining process is used to prepare the conjugated methyl linoleate, and a phase transfer catalyst is used in the conjugation process, the amount of alkali is reduced, the conjugation can be carried out under normal pressure, the complicated preparation process is simplified, and the high input cost problem of alkali and oil is overcome.

The invention discloses a method for assisting vegetable oil deacidification by using a blended membrane filtration technology, and belongs to the technical field of vegetable oil refining. The invention prepares alkaline microcrystalline cellulose by mixing potassium hydroxide and microcrystalline cellulose, crushing them, and sieving them; then, alkaline microcrystalline cellulose is mixed and cross-linked with carbon nanotubes; then, the alkaline microcrystalline cellulose-carbon nanotube complex is loaded on the surface of a ceramic membrane; finally, the alkaline microcrystalline cellulose-carbon nanotube complex is used to adsorb free fatty acids during the deacidification process of vegetable oil to reduce the acid value of crude vegetable oil, and improve the permeability and anti-pollution of the inorganic hydrophobic ceramic membrane to improve the filtration efficiency. The excellent adsorption performance of the alkaline microcrystalline cellulose-carbon nanotube complex can easily remove substances such as free fatty acids in crude vegetable oil, without the need to use chemical refining means, thereby achieving the purpose of simplifying the process and improving the oil yield. Physical filtration can retain the bioactive components and nutrients in the crude oil, thereby obtaining high-quality edible vegetable oil.

A method and reactor for degumming triglyceride oils. An aqueous base is mixed with an acid-treated oil stream to obtain a pretreated oil mixture that is subjected to oscillated pressure impulses by passing a flow of the pretreated oil mixture through a channel. A water hammer hydraulic pulse pressure is generated inside the channel by periodically closing an inlet and an outlet of the channel simultaneously for a selective closing time period. The method reduces the formation of soap stocks or soaps during neutralization of the vegetable oil. A decrease in the number of soaps formed during vegetable oil refining can reduce the amount of oil loss and the costs related to separating and purifying the refined vegetable oil product.

The invention discloses a preparation method and application of a non-grain bio-based formaldehyde-free shaving board adhesive. According to the preparation method of the non-grain bio-based formaldehyde-free shaving board adhesive, palm oil refining waste serves as a raw material, all the raw materials used in the preparation process are non-aldehyde compounds, the raw materials are chemically modified through transesterification, and the non-grain bio-based formaldehyde-free shaving board adhesive is prepared by increasing the crosslinking density and adjusting the interface bonding capacity. The mechanical property and the water resistance of the adhesive are enhanced. The prepared adhesive can be used for preparing shaving boards, and has the advantages of no formaldehyde release, environmental friendliness and the like. A new thought is provided for functional utilization of non-grain vegetable oil refining waste, the use requirements for production of the prepared adhesive composite artificial board are met, and the internal bonding strength, the static bending intensity, the water absorption expansion rate and the like of the shaving board can meet the existing national standard specification requirements.

The application discloses a plant oil integrated refining system, each section of which is provided with an integrated combined tower, and the integrated combined alkali refining tower is sequentially provided with a water washing buffer section, a secondary acidification reaction section and an alkali reaction section from top to bottom; the outlet of a degummed oil output pipe is connected with the main inlet of a static acid mixer through a steam heater; the outlet of the static acid mixer is connected with the secondary acidification reaction section; the outlet of the secondary acidification reaction section is connected with the main inlet of a static alkali mixer through a secondary acidification oil delivery pump; the outlet of the static alkali mixer is connected with the alkali reaction section; the outlet of the alkali reaction section is connected with a desoaping centrifuge through a neutralization oil delivery pump and a steam heater; the light phase desoaping oil outlet of the desoaping centrifuge is connected with the upper end inlet of the water washing buffer section; the bottom outlet of the water washing buffer section is connected with the inlet of a water washing centrifuge; and the light phase water washing oil outlet of the water washing centrifuge is connected with a water washing oil output pipe. The application can reduce equipment cost, save installation materials, reduce system floor area and building area.

The utility model discloses a solvent residue removal device capable of realizing automatic closed-loop control, which relates to the field of vegetable oil refining and comprises an energy-saving heat exchanger, a raw material preheater, a film evaporator and a solvent recovery component, the solvent recovery assembly is used for recovering a solvent in a material with a solvent, the energy-saving heat exchanger, the raw material preheater and the film evaporator are sequentially connected, a feeding metering pump is installed at the feeding end of the energy-saving heat exchanger, and the discharging side of the film evaporator is connected with an electrochemical sensor storage tank; a finished product material discharge pump is arranged at the discharge end of the electrochemical sensor storage tank; the technical problems that the economic burden of enterprises is increased and unavailable resources are wasted due to solvent residues generated in the production process are effectively solved.

The invention discloses integrated vegetable oil refining equipment, relates to the technical field of refining equipment, and provides the following scheme that the integrated vegetable oil refining equipment comprises a tank body, a pair of mounting rings are rotatably connected to the interior of the tank body, a plurality of fixing frames are fixedly connected between the pair of mounting rings, sliding strips are slidably connected to one ends of the fixing frames, and rotating plates are rotatably connected to the sides of the sliding strips; a filter-out plate which is opened and closed in a one-way mode is connected to the rotating plate, a fixed box is installed on the outer wall of the tank body, a push plate is slidably connected to the fixed box, a bottom cylinder is installed on the tank body, and a net plate is slidably connected to the interior of the bottom cylinder; colloid impurities are filtered out to the position between each pair of rotating plates through continuous and slow opening and closing of the rotating plates, the colloid impurities are conveniently collected, a second electric push rod pulls out a guide-out frame carrying the colloid impurities, the guide-out frame enters a fixed box, the colloid impurities are discharged into a bottom cylinder through a pressing-out pipe, precipitation and backflow are conducted, and waste is avoided.

The invention discloses a vegetable oil refining method and device. The method comprises the following steps: degumming, neutralizing, deacidifying, decoloring and deodorizing; the refining method can be applied to optimization of a plasticizer removal process for refining vegetable oil and accurate control of the content of trans-fatty acid and chloropropanol ester; and on the other hand, the refining device is common laboratory equipment different from customized commodity equipment of an existing device, only a small number of low-value equipment such as connecting pieces, glassware and electric jackets need to be purchased on the basis of the existing laboratory equipment, the device can be copied by all laboratories, customization is not needed, practicability is higher, and the device is low in cost and easy to popularize. The cost can be effectively reduced and the efficiency is improved.

The utility model discloses a vegetable oil dewaxing system, and belongs to the technical field of vegetable oil refining processing. Comprising a decolored oil finished product tank, the decolored oil finished product tank is connected with one side of a centrifugal pump a, the other side of the centrifugal pump a is connected with a plate heat exchanger I, the other side of the plate heat exchanger I is connected with a plate heat exchanger II, the other side of the plate heat exchanger II is connected with a crystallizing tank through a pipeline, and the bottom of the crystallizing tank is connected with a pneumatic pump a; the other side of the pneumatic pump a is connected with the bottom of the horizontal blade filter, the lower part of one side of the horizontal blade filter is connected with the dewaxed oil finished product tank through a pipeline, the bottom of the horizontal blade filter is connected with the top of the turbid oil tank, the bottom of the turbid oil tank is connected with one side of the centrifugal pump b, and the other side of the centrifugal pump b is connected with the top of the crystallizing tank through a pipeline. According to the system, the time for reducing the temperature of the decolorized oil to be below 5 DEG C can be reduced by half, the energy consumption is reduced at the same time, the wax-coated oil condition is avoided, and the loss of the vegetable oil in the dewaxing process is reduced.

The invention relates to the technical field of edible vegetable oil processing, and particularly discloses an unsaturated oil refining method and device based on enzyme-material coupling. Conversion of main impurities is completed at low temperature by utilizing high specificity of biological enzyme; according to the method, side reactions such as grease hydrolysis, oxidation, trans-fatty acid generation and nutrient loss caused by high temperature and strong alkali are avoided from the source, a brand new process route of coupling front-end bio-enzyme precise catalysis and rear-end physical means mild treatment is created for the first time, impurities and waxiness are removed through a mild, efficient and oriented refining process, and meanwhile, the yield is improved. The natural color and trace active components of the edible vegetable oil are perfectly reserved, generation of harmful substances such as trans-fatty acid and chloropropanol ester is avoided, and the problems of nutrient loss, generation of risky substances, environmental unfriendliness and the like in a traditional edible vegetable oil refining process are systematically solved; the method is especially suitable for highly unsaturated grease which is extremely sensitive to heat and oxidation and needs to retain natural color and luster.

The utility model relates to the related technical field of oil dirt cleaning of vegetable oil refining deodorization packing trays, in particular to an oil dirt cleaning device of a vegetable oil refining deodorization packing tray. A vibration filter plate is arranged in the cleaning tank, and the top of the vibration filter plate is fixedly connected with a vegetable oil refining and deodorizing filler disc. Under the matching action of the cleaning tank, the vibration filter plate, the vegetable oil refining and deodorizing filler disc, the portal frame, the lifting plate, the brush, the power mechanism and the lifting mechanism, the filler disc is soaked in water, attachments on the surface of the filler disc are softened, meanwhile, the attachments in pores of the filler disc are brushed, the cleaning effect of the filler disc is improved, and the cleaning effect of the filler disc is improved. The problems that although an existing device for cleaning the oil dirt of the vegetable oil refining and deodorizing filler plate can clean the filler plate, the cleaning effect is poor due to the fact that oil-soluble substances obtained after vegetable oil is dried are insoluble in water and high in adhesiveness, and the filler plate is washed only through a washing spray head are solved.

The utility model discloses vegetable oil refining equipment which comprises a refining box body, a refining assembly is installed on the upper surface of the refining box body, a dustproof assembly is installed in the refining box body and comprises an oil conveying pipe, a dustproof cover and a motor, the oil conveying pipe is installed on the bottom face of the refining box body, and the dustproof cover is installed on the bottom face of the refining box body. The dustproof cover is installed on the bottom face of the refining box body, the motor is installed on the bottom face of the refining box body, and the output end of the motor is fixedly connected with a filter screen. According to the vegetable oil refining equipment, the refining box body and the dustproof assembly are arranged in a matched mode, the dustproof assembly can protect the filter screen, it can be guaranteed that dust and impurities cannot fall into the filter screen, refined vegetable oil cannot be doped, the quality cannot be reduced, and the follow-up normal use standard can be guaranteed.

The application discloses a preparation process of high-oxidation-stability vegetable insulating oil and belongs to the technical field of vegetable oil refining. The core of the process is as follows: firstly, a palladium-nickel bimetallic catalyst supported on alkaline clay is prepared by taking palladium and nickel salt with a specific molar ratio as a precursor and combining with polyethylene glycol; then, the vegetable oil is mixed with the catalyst and activated carbon, and hydrogen is introduced for selective hydrogenation refining under the conditions of mild vacuum and heating; finally, antioxidants and pour point depressants are added into the refined oil to obtain the final product. Through the synergistic effect of the catalyst, the extremely unstable linolenic acid in the oil can be efficiently and selectively hydrogenated, and by means of the integrated process and adjustment, the oxidation stability of the product is remarkably improved, the product keeps excellent low-temperature fluidity, the refining yield is high, the process is simple, and the process is suitable for large-scale production of environment-friendly high-performance vegetable insulating oil.

The utility model discloses a condensation self-drainage device for a high-vacuum deodorization system, which relates to the technical field of edible vegetable oil refining, and comprises a condensation component, a liquid outlet component and a liquid outlet component, and the condensation component is used for condensing distillates in waste gas into liquid and reducing the temperature of the waste gas entering a vacuum system at the same time; the self-drainage mechanism comprises a collector shell, a collector upper seal head, a collector lower seal head, a conical partition plate and a connecting pipe, the collector upper seal head is arranged below the condensation assembly and above the collector shell, and the collector lower seal head is arranged below the collector shell; according to the utility model, automatic continuous blowdown operation is realized through automatic reversing of the electric control execution valve, meanwhile, the temperature of waste gas entering the vacuum system is reduced, distillate is effectively prevented from being pumped into each stage of vacuum pump of the vacuum system, unnecessary equipment maintenance is avoided, a continuous and stable vacuum condition is provided for a deodorization process, and the production efficiency is improved. And the quality of finished oil is improved.

The utility model relates to the technical field of vegetable oil refining, in particular to an edible oil decolorizing device which comprises a mixing tank, a decolorizing tank is arranged on one side of the mixing tank, and an anti-adhesion component is arranged in the mixing tank; the anti-adhesion assembly comprises a feeding pump connected to one end of the decolorizing tank, one side of the upper end of the mixing tank is connected with a water pipe, the other end of the water pipe is connected with a water pump, the top of the mixing tank is provided with a motor, and one end of the motor is connected with a speed reducer. The stirring blades are used for stirring the interior of the mixing tank, so that mixing in the mixing tank is more uniform, the inner wall of the mixing tank is scraped through the scraping plate, precipitates or blocks are prevented from adhering to the inner wall of the mixing tank, the interior of the mixing tank is heated through the heater, and therefore mixing of mixed liquid in the mixing tank is accelerated, operation is simple, and the practicability is high. The mixing efficiency before decolorization is improved, so that the operation time is saved.

The present invention relates to the technical field of oil processing, and specifically to a preparation method for extracting refined vegetable oil fatty acids. A preparation method for extracting refined vegetable oil fatty acids comprises the following steps: vegetable oil refining treatment and separation and extraction of refined vegetable oil fatty acids. In the process of vegetable oil refining treatment, modified rice husk-based porous carbon is used to deacidify and decolorize the degummed vegetable oil, which can efficiently adsorb the pigment, free fatty acid and heavy metal components in the vegetable oil, achieve the effect of simultaneous adsorption, deacidification and decolorization, effectively improve the efficiency of vegetable oil refining, and help improve the quality of vegetable oil refining, thereby improving the extraction effect of refined vegetable oil fatty acids; in the separation and extraction process of refined vegetable oil fatty acids, by adding a crystallization inclusion auxiliary agent, the contact between urea and saturated fatty acids in refined vegetable oil can be promoted, and stable inclusion composite crystals can be quickly formed, thereby improving the extraction purity of unsaturated fatty acids.

The plant oil refining device comprises a supporting frame, a mixing box, a stirring mechanism and a primary filtering mechanism, the mixing box is installed on the top of the supporting frame, the top of the left side of the mixing box is connected with a filtering box of the primary filtering mechanism through a communicating pipe, the communicating pipe is provided with an electric control valve, and an oil inlet pipe is installed on the left side of the filtering box; the oil inlet pipe is connected with an external oil supply pipeline, an installation opening is formed in the inner side of the top face of the filter box, and a filter screen is installed in the installation opening. At present, most filter screens are installed through embedded bolts and are inconvenient to disassemble, assemble and maintain.

The utility model provides refining equipment for detecting the oil yield of soybean oil, and relates to the technical field of vegetable oil refining. The degumming device comprises a fixing frame, a degumming tank is arranged outside the fixing frame, a sealing semi-ring is connected to the interior of the degumming tank in a sliding mode, a filter plate is fixedly connected to the interior of the sealing semi-ring, two limiting mechanisms are arranged in the degumming tank, and each limiting mechanism comprises a cavity formed in the degumming tank. Through the arrangement of the limiting rod, the limiting block and the pull rod, a worker pulls the pull rod to drive the limiting rod to slide in the degumming tank, so that the limiting rod cancels the limiting effect on the limiting block, and at the moment, the sealing semi-ring can be quickly and simply pulled out from the degumming tank and the filter plate can be cleaned; the working difficulty of taking out the filter plate from the degumming tank is greatly reduced, and the filter plate is prevented from being blocked by impurities such as phospholipid and colloid after being used for a long time, so that the normal operation of the device is not influenced.

The invention discloses a preparation process of vegetable insulating oil with high oxidation stability, and belongs to the technical field of vegetable oil refining. The core of the process is as follows: firstly, taking palladium and nickel salts in a specific molar ratio as precursors, and combining with polyethylene glycol to prepare a palladium-nickel bimetallic catalyst loaded on alkaline carclazyte; then, vegetable oil is mixed with the catalyst and activated carbon, and hydrogen is introduced under mild vacuum and heating conditions for selective hydrogenation refining; and finally, adding an antioxidant and a pour point depressant into the refined oil to obtain a final product. Through the synergistic effect of the catalyst, extremely unstable linolenic acid in hydrogenated oil can be efficiently and selectively hydrogenated, by means of an integrated process and blending, the oxidation stability is remarkably improved, meanwhile, the excellent low-temperature fluidity of the product is kept, the refining yield is high, the process is simple and convenient, and the method is suitable for large-scale production of the environment-friendly high-performance vegetable insulating oil.

The utility model provides a waste gas recycling device in a vegetable oil refining process, which relates to the field of vegetable fat processing and comprises a vacuum unit A, a vacuum unit B, a heat exchanger A, a heat exchanger B, an air filter and a gas recycling device. The heat exchanger A comprises a heat exchanger A air inlet, a heat exchanger A air outlet, a heat exchanger A oil inlet and a heat exchanger A oil outlet; a gas outlet of the alkali refining tank and a gas outlet of the decolorizing tank are respectively connected with a gas inlet of the heat exchanger A through first pipelines; a gas outlet of the heat exchanger A is connected with the gas recovery device sequentially through the vacuum unit A and the air filter; an oil inlet of the heat exchanger A is connected with a dewaxed oil conveying pipeline, an oil outlet of the heat exchanger A is connected with an oil inlet of the gassing tower, and a gas outlet of the gassing tower is communicated with the first pipeline. According to the utility model, the heat carried by the waste gas is effectively utilized and recycled, and dewaxed oil and deodorized oil are preheated, so that the energy is saved, the production cost is reduced, and the production benefit is improved.

The utility model discloses vegetable oil refining and dehydrating equipment which comprises a refining barrel and a stirring mechanism, the stirring mechanism comprises a separation plate, a rotating shaft, a first gear, a rotating rod, a second gear, a supporting rod and stirring blades, the separation plate is arranged on the upper side of the interior of the refining barrel, the rotating shaft is rotationally connected to the middle of the upper surface of the separation plate, the outer surface of the rotating shaft is fixedly sleeved with the first gear, and evenly-distributed notches are formed in the upper surface of the separation plate; the interior of each notch is rotationally connected with a rotating rod through a sealing bearing, the upper end of the outer surface of each rotating rod is provided with a second gear, the four second gears are connected with the first gear in a meshed mode, and the outer surfaces of the rotating rods are provided with symmetrically-distributed stirring blades through supporting rods. The vegetable oil is stirred through the stirring mechanism, so that the vegetable oil can be uniformly heated, the dehydration rate of the vegetable oil is increased, and the refining quality of the vegetable oil is guaranteed.

The invention relates to the technical field of vegetable oil refining, in particular to a high-purity vegetable oil refining process based on a molecular distillation technology, which comprises the following steps: extracting a vegetable oil raw material to obtain primary vegetable oil, carrying out multi-stage molecular distillation on the primary vegetable oil, and obtaining distillation temperature and pressure in a distillation environment in the distillation process, obtaining the distillation environment unbalance degree at each collection moment in the distillation process, and obtaining the deacidification interference significance at each collection moment in the distillation process; and calculating the distillation separation effect degree at each collection moment in the distillation process, and obtaining the expected distillation temperature at each collection moment in the distillation process according to the non-linear change difference of the distillation separation effect degree along with time and by combining the distillation temperature at each collection moment, so as to adjust the distillation temperature in the distillation process. And carrying out multistage molecular distillation to obtain refined high-purity vegetable oil. The control precision of the distillation temperature in the vegetable oil refining process can be improved, and the extraction purity of the vegetable oil is improved.

The invention provides a non-grain oil-based formaldehyde-free adhesive as well as a preparation method and application thereof. The non-grain oil-based formaldehyde-free adhesive comprises the following components in parts by weight: 48-55 parts of an oil refining byproduct, 25-32 parts of a modifier, 0.8-1.8 parts of a catalyst, 10-20 parts of a cross-linking agent, 2 parts of butanone peroxide and 3-8 parts of isocyanate. According to the preparation method, vegetable fat refining by-products are used as raw materials and activated through transesterification, and the cross-linking agent and isocyanate are introduced for modification, so that the bonding strength and water resistance of the adhesive are remarkably improved. The obtained product can be used for preparing poplar plywood, and has the characteristics of no formaldehyde release, excellent environment friendliness and the like. According to the invention, a new way is provided for high-value utilization of grease byproducts, and the prepared adhesive also meets the use requirements of artificial board production in the aspect of performance.

The invention relates to the technical field of vegetable oil refining, in particular to a method for preventing trichloropropanol ester and glycidyl ester from being generated in the edible oil refining process. The method comprises the following steps: pumping degummed oil into an enzymatic reaction kettle, adding immobilized fat esterifying enzyme into the kettle, keeping the constant temperature at 40-60 DEG C, starting a stirrer, and carrying out a stirring reaction to obtain esterified degummed oil with low monoglyceride content; and sequentially carrying out dewaxing, decoloration, deodorization and degreasing on the esterified degummed oil to obtain finished oil. According to the method disclosed by the invention, the content of monoglyceride / diglyceride in the rice bran crude oil is reduced through an enzyme catalytic reaction by utilizing the fat esterifying enzyme, so that the purpose of preventing the generation of 3-chloropropanol ester and glycidyl ester in the rice bran oil refining process by using the precursor is achieved; the method has the advantages of being high in refining yield, simple in operation process, high in reaction speed, capable of reducing cost, free of solid waste and good in effect.

The invention relates to the technical field of vegetable oil refining and processing, and discloses a low-temperature physical purification method of high-purity nutritional purple perilla seed oil, which comprises the following steps: S1, freezing crude purple perilla seed oil subjected to filtration and impurity removal at-30 DEG C to-20 DEG C for 36-50 hours to separate out wax and free water crystals in the oil; s2, the frozen purple perilla seed oil is subjected to three-stage filtration through precision filter materials of 5 micrometers, 1 micrometer and 0.1 micrometer in sequence in the low-temperature state, whole-process low-temperature physical purification is adopted, heating, chemical reagents and adsorption decoloration are avoided, nutritional ingredients such as alpha-linolenic acid and vitamin E are well reserved, trans-fatty acid is not generated, the nutrition and safety are higher, and the method is suitable for industrial production. Through low-temperature crystallization, multi-stage precision filtration and nanofiltration membrane cross-flow coupling, wax, water, phospholipid and other impurities can be thoroughly removed, an oil product is clear and stable and is not liable to become turbid and deteriorate, the process is green and environment-friendly, the cost is low, the method is suitable for industrial production, and the problem that the quality of traditional refining and existing physical purification is poor is effectively solved.

The present invention relates to the technical field of vegetable oil production. Disclosed are a vegetable oil production device and a vegetable oil production method. The device comprises a raw material tank, a heat exchanger and a membrane structure; the membrane structure comprises a plurality of membrane assemblies which are sequentially communicated; each membrane assembly comprises a plurality of membrane tubes arranged in parallel; the raw material tank is provided with a feed port, and a discharge port of the raw material tank is separately communicated with a feed port of the membrane structure and a waste discharge pipe; a clear liquid outlet of the membrane structure is communicated with a collecting structure; a feed port of the heat exchanger is communicated with a discharge port of the membrane structure; the discharge port of the membrane structure is further communicated with the waste discharge pipe; and a discharge port of the heat exchanger is communicated with a reflow port of the raw material tank. The present invention solves the problems of chemical reagent addition caused by excessive processing in the traditional vegetable oil refining process and loss of active substances and heat-sensitive substances in the vegetable oil due to high-temperature refining.

The invention discloses vegetable oil refining and deodorizing equipment based on steam stirring, and belongs to the technical field of vegetable oil refining and deodorizing, the vegetable oil refining and deodorizing equipment comprises a cooler, an evaporator and a deodorizing tank, and a hollow rod is rotatably mounted in the deodorizing tank. According to the scheme, through cooperation of the first air hole and the second air hole, the rotating disc can be driven to rotate through the transmission assembly in the rotating process of the stirring rod, and the rotating disc can drive the second air hole to rotate in the rotating process of the rotating disc; steam flow in the communication cavity flows to the vegetable oil in the deodorization tank through the second air hole and the first air hole, and when the second air hole is separated from the first air hole, the steam cannot pass through the first air hole, so that the steam intermittently flows to the vegetable oil in the deodorization tank; steam is effectively prevented from flowing to the vegetable oil through the second air hole and the first air hole for a long time to form steam channeling, so that steam bubbles can be in full contact with the vegetable oil, and the purpose of improving the vegetable oil deodorization efficiency is achieved.