467 results about "Oil processing" patented technology

The invention discloses an animal fat secondary refining operation optimization control system based on digital twinning, and belongs to the field of fat processing. In order to solve the problems of data feedback lagging, difficult parameter cooperative control, poor interference resistance, single optimization target and the like in the prior art, the system comprises an acquisition module, a processing module, a prediction module and an optimization execution module. The acquisition module acquires a first grease parameter and an equipment parameter; the processing module uses data cleaning, filtering and other operations to generate a second grease parameter; the prediction module constructs a digital twinborn model, adopts whole-course and half-course prediction, and combines a double-residual compensation mechanism to improve stability; and the optimization execution module generates an optimal equipment parameter adjustment amount through a multi-objective optimization algorithm. According to the method, dynamic modeling, accurate prediction and self-adaptive optimization in the refining process are realized, and the product quality stability and the production efficiency are improved.

The invention relates to the technical field of grain and oil processing, in particular to a flaxseed microwave-assisted wall breaking and nitrogen protection cold pressing process. The method comprises the following steps: putting flaxseeds into a microwave bin, carrying out intermittent microwave treatment, and carrying out blank rolling treatment on the flaxseeds by adopting a double-helix blank rolling mill to obtain crude oil; and after degumming, deacidifying, decolorizing and deodorizing the crude oil, filtering the crude oil to obtain refined oil. According to the method, the flaxseed cell wall rupture rate is increased through microwave pretreatment, more grease can be released, the grease flow resistance can be reduced, the released grease can be rapidly separated from a fiber network and resorption is reduced through a nitrogen-assisted pressing mode, and after first-time cold pressing, oil cakes are subjected to secondary microwave treatment, so that the flaxseed oil yield is improved. The method can further destroy residual cell structures, and can prevent oil cake hardening caused by oxidation under the protection of nitrogen, so that the oil yield during secondary repressing is increased.

The invention relates to the technical field of heavy oil product treatment, in particular to a method and device for co-production of a carbon material through molten salt pyrolysis of a liquid oil product, and the method comprises the following steps: the liquid heavy oil product is put into an electric heating molten salt reactor through a continuous feeding system, and the molten salt reactor is filled with a molten alkaline molten salt medium; carrying out catalytic pyrolysis reaction on the oil product in a liquid phase environment of the molten salt medium, wherein the oil product stays in the molten salt for 5-10 seconds; the liquid oil product is uniformly cracked in the liquid phase of the molten salt to generate low-carbon hydrocarbon gas, hydrogen and dispersed fine carbon particles, and the carbon particles suspend on the surface under the buoyancy action of the molten salt and are not deposited and gathered; suspended carbon particles are collected from the surface of the fused salt in real time through a mechanical push rod continuous collection system; according to the method, continuous and stable pyrolysis of the heavy oil product and efficient and continuous separation of the product can be realized in the liquid-phase molten salt environment, the production efficiency is improved, and the stability of the product quality is ensured.

The invention belongs to the technical field of lubricating oil processing, and particularly relates to lubricating oil hydrofining equipment which comprises a high-pressure tank, a high-pressure pump, an oil inlet pipe and a hydrogen inlet pipe. The output end of the oil inlet pipe and the output end of the hydrogen inlet pipe are both located on the lower portion of a hydrogenation cavity of the high-pressure tank, the spiral plate is installed in the middle of the hydrogenation cavity of the high-pressure tank, a hydrogenation catalyst is arranged on the surface of the spiral plate, and the permeable membrane separation barrel is installed on the upper portion of the hydrogenation cavity of the high-pressure tank; a permeable membrane for hydrogen and waste gas to enter is arranged on the outer wall of the permeable membrane separation barrel, the input end of the exhaust pipe extends into the permeable membrane separation barrel, the output end of the exhaust pipe is connected with the sucking pump, the input end of the oil outlet pipe extends into the upper part of the hydrogenation chamber of the high-pressure tank, and the output end of the oil outlet pipe is provided with a pressure limiting valve; hydrogenation mixing, hydrogenation refining and oil-gas separation are carried out in a high-temperature and high-pressure tank body, the integration level is high, the energy consumption is low, and the refining efficiency is high.

The invention belongs to the technical field of functional grease processing, and particularly relates to an enzymolysis preparation method and application of diglyceride with an effect of improving Alzheimer's disease. The method comprises the following steps: mixing low-erucic acid rapeseed oil, glycerol and water, and heating to obtain a pre-reaction mixture; adding compound enzyme for reaction, and then adding candida antarctica lipase B and pseudomonas fluorescens lipase for reaction; and after the reaction is completed, carrying out molecular distillation, collecting a light-phase product, carrying out adsorption filtration, and collecting filtrate to obtain the diglyceride oil. The compound enzyme is composed of rhizomucor miehei lipase, candida rugosa lipase and candida antarctica lipase B in a weight ratio of (2-4): 2: 1. According to the method, the content of diglyceride is effectively increased, the prepared composition has the efficacy of preventing and treating Alzheimer's disease, and the efficacy is shown as improvement of reaction capacity and cognitive function, inhibition of brain apoptosis and acetylcholin esterase, enhancement of SOD and CAT vitality and improvement of related gene expression.

The utility model discloses a rapeseed stir-frying machine, which relates to the technical field of oil product processing and comprises a base, seed stir-frying components are fixedly mounted at the left and right parts of the upper end of the base, and a feed filtering component is fixedly mounted at the right part of the top of each seed stir-frying component. According to the rapeseed frying machine disclosed by the utility model, rapeseeds in the heating furnace can be turned and fried through the seed frying assembly, and can be conveyed to the left part of the inner cavity of the heating furnace during frying. Rapeseeds entering the heating furnace can be filtered and screened in advance through the feeding filtering assembly, and impurities in the rapeseeds are separated and collected. Rapeseeds discharged by the heating furnace can be guided onto the electric conveying belt through the guide plate by the conveying air-cooling assembly, so that the rapeseeds can be subjected to air cooling in the tiled conveying process, and the temperature of the fried rapeseeds is rapidly reduced by a plurality of air spraying heads, so that the oxidation reaction can be inhibited, and the damage of high temperature to nutritional ingredients can be reduced.

The invention discloses microcapsule powder for covering the oil smell of euphausia superba oil and a preparation method of the microcapsule powder, and belongs to the field of euphausia superba oil processing. The microcapsule powder is composed of 50-75% of OSA starch, 10-30% of euphausia superba oil, 3-20% of sodium alginate, 1-10% of succinic acid and 0.5-5% of calcium hydrophosphate, during preparation, the OSA starch is gelatinized and then sheared and homogenized with the euphausia superba oil to obtain a miniemulsion, the succinic acid, the sodium alginate and the calcium hydrophosphate are prepared into a mixed solution, the mixed solution is mixed with the miniemulsion in proportion, and spray drying is performed to obtain a finished product. An OSA starch-sodium alginate double-wall material system is adopted, a compact cross-linked layer is formed through pH response, peculiar smell substances such as trimethylamine can be completely masked, the astaxanthin retention rate is up to 95.14%, the embedding rate reaches 89.48%, krill oil oxidation is effectively inhibited, krill oil is converted into powder, the stability and the sensory property are improved, application of krill oil in the food field is widened, the technology is simple, and the method is suitable for industrial production. The method is suitable for industrial production.

The invention discloses a method for preparing chocolate with high heat resistance, blooming resistance, high dietary fiber and low saturated fatty acid based on biphase gel and a product, and belongs to the technical field of oil processing application, and the method comprises the following steps: adding an emulsifier and solid fat into edible vegetable oil, and heating and stirring until the emulsifier and the solid fat are completely molten to obtain an oil gel phase; adding dietary fibers into water, and completely dissolving the dietary fibers to form a hydrogel phase; and mixing the obtained hydrogel phase and the oil gel phase, carrying out high-speed shearing emulsification, and cooling to room temperature in an ice-water bath to obtain the biphase gel. Different types of biphase gels are prepared by adjusting the ratio of the oil phase to the water phase, and the biphase gels are used for partially replacing cocoa butter to prepare the chocolate, so that the fat content is reduced, the heat resistance of the chocolate is improved, the frosting phenomenon of the chocolate is effectively delayed, the prepared chocolate does not contain trans-fatty acids, the saturated fatty acids are reduced, and the chocolate has good stability. And dietary fibers are contained, so that human health is benefited.

The invention relates to the technical field of rapeseed oil processing, and discloses a rapeseed oil squeezing and leaching process integrating gradient temperature control and dynamic regulation, which comprises the following steps: S1, receiving and metering raw materials; s2, cooperatively softening, drying and squeezing; s3, dynamic regulation and control conveying and buffering of the rape seed cakes; s4, gradient temperature control leaching and waste heat recovery; s5, optimizing operation of a solvent recovery system; s6, collecting crude oil; drying and softening process parameters are dynamically regulated and controlled in the reverse direction with the squeezing requirement as the target, and precise cooperation of moisture and temperature of the blank pieces is achieved; in the leaching stage, gradient heating evaporation is adopted, and evaporation-removed waste heat is recycled for material preheating, so that the energy consumption is reduced while the solvent separation efficiency is improved; a dynamic matching mechanism based on real-time data and buffer storage is established, the production rhythm of a pre-squeezing workshop and a leaching workshop is coordinated, the problem of capacity imbalance is solved, and the purposes of improving the oil yield and the quality of crude oil, reducing energy consumption and solvent loss and enhancing the continuity and stability of whole-process production are achieved.

The invention belongs to the technical field of grease processing, and discloses a soybean cottonseed oil cooked squeezing residue separating device and a separating method.The soybean cottonseed oil cooked squeezing residue separating device comprises a separating box, a feeding port is formed in the top of the separating box, a separating cylinder is installed in the separating box, a conveying auger is arranged in the separating cylinder, and a first rotating shaft is fixedly installed at one end of the conveying auger; a motor is installed at the end, away from the conveying auger, of the first rotating shaft and installed on the outer wall of the separation box. An anti-blocking assembly is arranged at the bottom end of the separation barrel, during working, the motor is started to drive the first rotating shaft to rotate, the first rotating shaft rotates to drive the conveying packing auger to rotate, residues enter the separation barrel under the action of the conveying packing auger and are extruded with the separation barrel, and then oil remaining in the residues is discharged; and when the first rotating shaft rotates, the fixing plate and the brush plate are driven to swing back and forth at the bottom of the separation barrel, filter holes in the bottom of the separation barrel are cleaned, the filter holes are prevented from being blocked by fibers in residues, and therefore the separation efficiency is ensured.

The utility model relates to the technical field of deep processing of grease, in particular to a transesterification grease treatment device which comprises a separation device and a vacuum heating device, a funnel is arranged at a top inlet of the separation device and penetrates through the separation device, and the lower end of the funnel is suspended; a first outlet and a second outlet are formed in the side wall of the separation device, and the separation device is connected with a vacuum heating device through the first outlet; a heating structure, a third outlet and a fourth outlet are arranged in the vacuum heating device, and the third outlet and the fourth outlet are arranged on the side wall of the vacuum heating device. According to different conditions of the oil-water separation layer, the flowing-out position of the grease can be accurately adjusted, the oil-water separation accuracy is improved, meanwhile, impurities such as water and methyl alcohol in the grease are effectively removed, and the purity of the grease is remarkably improved.

The utility model relates to the technical field of squeezing devices, and discloses a squeezing device for vegetable oil processing, which comprises a bottom plate, a support cylinder is fixedly connected to the middle of the top of the bottom plate, a disc oil receiving cover is fixedly connected to the top of the support cylinder, a sleeve is fixedly connected to the middle of the inner side of the disc oil receiving cover, and a diversion trench is arranged on one side of the disc oil receiving cover. The sleeve is slidably sleeved with a connecting rod, the connecting rod penetrates through the disc oil receiving cover, round holes matched with the connecting rod are formed in the disc oil receiving cover and the sleeve, a supporting plate is fixedly connected to the top of the connecting rod, and fixing blocks are fixedly connected to the positions, close to the two sides, of the top of the disc oil receiving cover; and the same limiting cylinder is fixedly connected between the two fixing blocks. According to the utility model, the technical effects that residues can be quickly cleaned, the labor intensity of workers is reduced, the squeezing efficiency is improved, and meanwhile, the equipment is convenient to clean are realized.

The utility model discloses a high-definition ash-free anti-wear hydraulic oil processing filter device which comprises a bottom plate, a support is fixedly installed at the top of the bottom plate, a main body is fixedly installed at the top of the support, one side of the main body is communicated with a circulating liquid pumping assembly, the bottom of the main body is communicated with a sewage draining assembly, and the sewage draining assembly is communicated with a sewage pump. According to the filtering device for processing the high-definition ash-free anti-wear hydraulic oil, chippings in the hydraulic oil can be adsorbed through the filtering assembly and a magnetic attraction block, the cleanliness of the filtered hydraulic oil is higher through multi-stage filtering, and the filtering efficiency is improved. The hydraulic oil filtering device is simple in structure, meets the requirement of a high-precision hydraulic system, can filter impurities such as microorganisms in hydraulic oil through the deep filter, can be quickly taken out of the filtering device by maintenance personnel through the lifting assembly, and is cleaned or directly replaced by a new filter screen, so that the maintenance time and the labor cost are saved.

The utility model discloses a kind of strong-flavor tea oil preparation devices, belong to tea oil processing technical field, including tea oil stirring subassembly and quantitative filling component, the tea oil stirring subassembly includes tea oil mixing tank, the outer surface of tea oil mixing tank is equipped with annularly arranged support leg, the outer surface of each support leg is equipped with stabilizing plate, by the setting of tea oil mixing tank, rotating rod, tea oil stirring blade, rotating electrical machine, observation window and transparent plate, not only can make equipment can mix tea oil with chemical raw materials quickly, to greatly increase the production efficiency of tea oil, and can be convenient for people to check the mixing state of tea oil, the setting of duct, flow control valve, liquid storage tank, sealing cover, scale and toughened glass, not only can make equipment can be quantitatively filled to multiple chemical raw materials, to make the quality of tea oil produced higher, and can be convenient for staff to check the storage of chemical raw materials inside liquid storage tank.

The utility model discloses an anti-burning cooling device for cooked hot sesame, and particularly relates to the field of ground sesame seed oil processing, which comprises a cooling box, a sealing door is connected to the outer side of the cooling box, a cooling frame is arranged in the cooling box, three pairs of sliding rails are sequentially arranged on the side wall of the cooling frame from top to bottom, and a mounting plate is arranged above the sliding rails. A fixing piece for limiting the mounting plate is arranged at the end part of the sliding rail; according to the utility model, the three pairs of eccentric wheels rotate synchronously, so that the sesame storage box vibrates continuously and is matched with the cooling pipe above the sesame storage box to convey cold air so as to rapidly cool sesame; in the vibration process of the sesame storage box, fine impurities in the sesame fall onto an impurity collecting plate and then are collected by a collecting drawer through a collecting pipe; according to the sesame cooling device, the sesame storage box is continuously vibrated and is matched with direct blowing of cold air, so that cooling of sesame is accelerated, impurities are screened out and collected uniformly, and the cooling efficiency of the sesame is improved.

The invention relates to the technical field of grain and oil processing, in particular to an automatic discharging control system of an evapo-separated machine, which comprises a sensing module, a control module and an execution module, and the sensing module is responsible for data acquisition, comprises a plurality of sensors and is used for real-time acquisition of material level height, discharging rate and motor current data in the evapo-separated machine. Key parameter information such as the material level, the flow and the current in each layer of stock bin is collected in a multi-dimensional mode through the sensing module, and comprehensive and real-time data support is provided for control decision making; the material level deviation between a preset target material level and a real-time material level is accurately calculated through a control module so as to reflect the state of materials stored in each bin, and a corresponding adjusting instruction is output according to a calculation result; the execution module efficiently responds to the adjusting instruction to adjust the discharging amount or remove blockage, the blockage problem of the discharging opening can be solved in time, the downtime caused by manual cleaning is shortened, continuous operation of a production line is guaranteed, and losses caused by production interruption are reduced.

The application discloses a deoxygenation method and a deoxygenation adsorbent for Fischer-Tropsch synthesis oil, and relates to the field of Fischer-Tropsch synthesis oil processing.The deoxygenation method comprises the following steps: introducing Fischer-Tropsch synthesis oil into an adsorption tower filled with the deoxygenation adsorbent, and removing oxygen-containing compounds.The deoxygenation adsorbent is prepared by the following method: step S1, adding an aluminum source, a silicon source and a template agent into a lye, and performing first aging at room temperature; continuously adding the aluminum source and the silicon source, and performing second aging at room temperature; performing crystallization at a predetermined temperature; and filtering and washing the product to obtain a molecular sieve; and step S2, immersing the molecular sieve in a lye, adding a template agent into the lye, and then performing crystallization; and filtering, washing, drying and calcining the product after the crystallization to obtain the deoxygenation adsorbent.The deoxygenation method for Fischer-Tropsch synthesis oil provided by the application significantly improves the quality of Fischer-Tropsch synthesis oil and the economic benefits of subsequent processing by preparing a deoxygenation adsorbent with multiple levels of pores and combining the adsorption tower.

The utility model discloses a reaction kettle for lubricating oil processing, including the reaction kettle main part, be equipped with the kettle body and top cover on the reaction kettle main part, be equipped with the inner chamber in the kettle body, the outside of kettle body is installed with the outer layer protection sleeve, is equipped with the cooling cavity between outer layer protection sleeve and kettle body, is installed with the main shaft motor and the main shaft on the top cover, one end of main shaft is installed on the main shaft motor, the other end of main shaft is installed in the kettle body, the utility model discloses, through setting cooling cavity and inner wall column, the center of inner chamber and outer wall are cooled simultaneously, make inside and outside temperature as far as possible balance, prevent material internal heat accumulation, avoid in the process of stirring, the heat accumulation, influence lubricating oil synthesis, through with the main shaft as the axle center rotation of screw rod type agitator and frame type agitator simultaneously, screw rod type agitator and frame type agitator respectively with the axle center rotation of self central axis, screw rod type agitator and frame type agitator rotate in the inner chamber, form more faster axial flow and radial flow in the inner chamber, promote the stirring effect.

The application discloses a process for purifying and separating n-hexane waste gas in grain oil production and belongs to the technical field of waste gas treatment of agricultural and sideline products. Mixed adsorbents are introduced into a solvent absorption tower, n-hexane waste gas is adsorbed by the solvent absorption tower to obtain mixed absorption liquid, and the mixed absorption liquid is treated by a desorption tower to realize separation of n-hexane and the mixed adsorbents. The whole process does not involve catalytic reaction, mainly relies on physical absorption and desorption process to realize separation and recovery of n-hexane, and does not need to suspend grain oil production, realizes synchronous performance of grain oil production and n-hexane tail gas separation, and can effectively improve grain oil processing efficiency.

The invention relates to the technical field of acer truncatum seed oil processing, in particular to an acer truncatum seed oil processing and squeezing assembly which mainly comprises a material barrel, a transmission rod is rotationally arranged in the material barrel, and a spiral oil squeezing plate is installed on the outer surface of the transmission rod; the box body is arranged below the charging barrel, at least one group of fixed frames are arranged in the box body, and filter plates are arranged at the bottom ends in the fixed frames; the scraping assembly is slidably arranged at the position, corresponding to the upper portion of the filter plate, in the box body and used for scraping impurities attached to the upper end face of the filter plate, and the scraping assembly comprises an elastically-arranged scraping plate; the acer truncatum seed oil is filtered through a filter plate, in the filtering process, a rotating transmission rod downwards presses a connecting plate through an abutting rod, the connecting plate extrudes a second air bag through an extrusion plate, air in the second air bag is exhausted into a first air bag through an exhaust pipeline, and the first air bag expands to push a guide block to move; and then an elastically-arranged scraping plate is driven to scrape the impurities, and the impurities are scraped into the storage box.

The utility model relates to the technical field of ganoderma lucidum spore oil processing, in particular to storage equipment for decoloring ganoderma lucidum spore oil, which comprises a storage tank, a filter plate is fixedly connected inside the storage tank, a motor is fixedly connected to the bottom of the storage tank, and an output shaft of the motor extends into the storage tank, penetrates through the filter plate and is fixedly connected with a connecting plate. A scraping plate is fixedly connected to one side of the bottom of the connecting plate and makes contact with the top of the filter plate, dirt suction heads are fixedly connected to the interior of one side of the connecting plate at equal intervals, a communicating pipe is fixedly connected between the input ends of the multiple dirt suction heads, and a sediment suction pump is fixedly connected to one side of the storage tank. The ganoderma lucidum spore oil storage device has the advantages that the storage tank effectively isolates oxygen, the temperature control module accurately controls the temperature, the sediment suction pump is connected with the dirt suction heads through the dirt suction pipes, the sediment problem is solved, the quality stability of ganoderma lucidum spore oil in the storage process is comprehensively guaranteed, and the quality guarantee period is prolonged; compared with a traditional device, the operation quality and the use efficiency are greatly improved.

The present application relates to the field of oil processing, and discloses a method for recovering flavoring substances from oil meal, which comprises the following steps: adjusting the oil meal to have a predetermined moisture content, heating the oil meal to a predetermined temperature, and making the flavoring substances in the oil meal escape under stirring, drying the escaped flavoring substances through a filtering device, and then introducing the dried flavoring substances into primary oil maintained at a predetermined temperature by a vacuum pump for absorption. The method can simply and safely absorb the flavoring substances in the oil meal, and is beneficial to realize industrialized production.

The utility model discloses an engine oil settling tank, and belongs to the technical field of engine oil treatment. The device mainly comprises a main tank, a feeding port is formed in the upper end of the main tank, a discharging port is formed in the side face of the main tank, and a connecting support is fixedly installed at the top of the main tank; the auxiliary tank is arranged on the connecting support and comprises a tank body, the tank body is fixedly installed on the connecting support, a feeding part is arranged on the tank body, a discharging part is arranged at the bottom of the tank body, and the other end of the discharging part is communicated with the interior of the main tank; and the main shaft is arranged in the tank body. According to the engine oil settling tank, the auxiliary tank, the first filter screen and the second filter screen are arranged, before waste engine oil is settled, the waste engine oil can be poured into the auxiliary tank to be pre-settled, particle impurities are pre-screened through the first filter screen and the second filter screen, and the situation that many impurities enter the settling tank to be accumulated is avoided; and subsequent slag discharging is difficult.

The utility model relates to a screening device for grain and oil processing, which comprises a bottom frame, the top of the bottom frame is fixedly connected with a shell, the shell is internally provided with a screen drum, the top of the bottom frame is provided with a driving mechanism, one side of the screen drum is provided with a dust falling mechanism, and the driving mechanism comprises a first motor fixedly connected to the top of the bottom frame. One end of the first motor is fixedly connected with a linkage assembly, the outer surface of the shell is fixedly connected with a movable wheel, one end of the linkage assembly is connected with the movable wheel, one end of the shell is fixedly connected with a feeding hopper, the other end of the shell is fixedly connected with a discharging hopper, and the feeding hopper and the discharging hopper are both in an inclined state. According to the screening device for grain and oil processing, the driving mechanism is arranged, power is transmitted to the movable wheel through the linkage assembly, the movable wheel rolls in the rolling groove in the outer surface of the screen drum, and therefore the screen drum is driven to rotate stably, and grain screening can be achieved through the driving mode.

This invention relates to the technical field of waste oil collection, and in particular to a dry oil collection device for a normalized acid washing line. By incorporating a conveying and filtering mechanism, it facilitates the collection and filtration of the oil, removing impurities and achieving solid-liquid separation to aid subsequent oil processing and improve usability. The device includes a main collection box, a collection hopper, and a conveying and filtering mechanism. The main collection box has a collection chamber inside, the collection hopper is fixedly installed on the main collection box, and the conveying and filtering mechanism is fixedly installed inside the main collection box. The conveying and filtering mechanism includes a conveying trough, a conveying screw, a first reducer, a first motor, a conveyor belt frame, a conveyor belt, a second reducer, a second motor, an oil discharge hopper, and an oil discharge pipe. The conveying trough is fixedly installed in the main collection box, the conveying screw is rotatably installed inside the conveying trough, the first reducer is fixedly installed on the outer wall of the main collection box, and the first motor is fixedly installed on the outer wall of the main collection box.

The invention relates to the technical field of zanthoxylum oil processing, and particularly discloses a xanthoxylin dissolving and improving process which comprises the following steps: S1, taking fresh zanthoxylum as a raw material, and sequentially performing impurity removal, cleaning and natural draining; s2, the drained fresh pepper is introduced into vegetable oil at the temperature of 110-130 DEG C to be subjected to extraction; s3, collecting water vapor generated in the step S2, cooling the water vapor to 40-60 DEG C, introducing the cooled water vapor into a mixing tank, and mixing the water vapor with an organic solvent in the mixing tank; s4, standing the mixing tank until obvious layering occurs in the mixing tank, the lower layer is a water layer, the upper layer is a mixing layer, and the water layer and the mixing layer are led out respectively; s5, the mixed layer is subjected to secondary heating to 130-150 DEG C, and the vegetable oil containing the zanthoxylin in the mixed layer is obtained. According to the method, the solubility of zanthoxylin extraction can be improved.

The rapeseed raw material screening device for rapeseed oil processing comprises a shell, a feeding hopper is arranged on the top face of the shell, a magnetic conveying device and a rotating assembly for driving the magnetic conveying device to conduct transmission are arranged in the shell, and a gap is formed between the feeding hopper and the magnetic conveying device. A carding device is arranged on the inner bottom face of the shell, a fan is arranged in the shell, and a communicating pipe is arranged on the outer wall of the shell. The rapeseed screening and cleaning device has the beneficial effects that the device is combined with magnetic conveying, wind power separation, carding and paving structures and the like, and efficient screening and cleaning of rapeseed materials are achieved; the carding device ensures that the rapeseeds are flat and uniform, the screening effect and the purity of the materials are improved, the magnetic conveying device can effectively remove iron impurities, and the draught fan removes light impurities through the blowing effect; manual operation is saved, the production efficiency and the product quality are improved, and high practicability and reliability are achieved.

The invention relates to the technical field of grease processing, and discloses a method for increasing the sn-2 DHA content in schizochytrium limacinum triglyceride. The method comprises the following steps: adding a metabolic regulator into a fermentation culture solution containing schizochytrium limacinum, carrying out fermentation culture until the total fermentation time is more than 120 hours, and collecting a grease product, the metabolic regulator is selected from at least one of choline chloride, inositol and lysophosphatidic acid. According to the method provided by the invention, the lipid metabolic flux of schizochytrium limacinum can be effectively regulated and controlled, and directional enrichment of DHA to the sn-2 site of triglyceride is remarkably promoted, so that the yield and content of sn-2 DHA are improved.

This utility model discloses a rapeseed oil processing filtration device, relating to the field of rapeseed oil processing. It aims to solve the problem that existing filtration devices, even when simply pouring the residue, still leave residue inside the filter mesh, and the surface of the residue still has rapeseed oil adhering to it. Directly pouring the residue into a cleaning box leads to rapeseed oil waste. The key technical points are: it includes a connecting pipe and a support pipe fixedly connected to the connecting pipe. The connecting pipe has internal threads, and the support pipe has a filter groove. Two fixed plates are detachably connected to the filter groove, and a filter screen is fixedly connected between the two fixed plates. The support pipe is equipped with a squeezing mechanism for squeezing the residue. This rapeseed oil processing filtration device can squeeze out the rapeseed oil adhering to the surface during rapeseed oil filtration through the squeezing mechanism, thereby reducing rapeseed oil waste.

The application relates to the grain and oil processing technical field, in particular to a grain heating frying pan, which comprises a fixing support, a vibrating device, a heating chamber and a heating device, wherein the vibrating device is arranged above the fixing support and connected with the fixing support through a shock absorber; the heating chamber is fixed on the top of the fixing support and connected with the vibrating device; the vibrating device is used for providing longitudinal vibration to the inside of the heating chamber; the heating device is arranged in the inside of the heating chamber and comprises a fixing support structure, an electric heating pipe and a heating plate; the electric heating pipe and the heating plate are fixed in the inside of the heating chamber through the fixing support structure and provide heat for the heating chamber. The application has the advantages of simple structure, convenient use, uniform control of the temperature in the inside of the heating chamber through the heating mode of the electric heating pipe, the heating plate and a heat preservation layer, uniform heating of the grain materials in the inside of the heating chamber in the vibrating and frying process and improved energy utilization rate.