2512results about "Fatty-oils/fats refining" patented technology

The invention relates to the technical field of grease production control, in particular to a grease product production control method and system based on intelligent digitization. The method comprises the following steps: monitoring temperature, viscosity and turbidity data in a grease crystallization process in real time, and generating grease crystallization state snapshot data; performing crystallization state prediction according to the grease crystallization state snapshot data, and performing reaction kettle cooling rate adjustment to obtain a target control cooling rate; performing real-time stirring rotating speed adjustment fuzzy reasoning on the grease crystallization state snapshot data to generate a corrected grease stirring speed; and performing control instruction conversion on the target control cooling rate and the corrected grease stirring speed, executing a production control instruction, and generating a grease crystallization process control report. By accurately controlling the cooling rate and the stirring speed, intelligent control over the grease crystallization process is achieved, and the quality and stability of grease products are remarkably improved.

The invention provides linseed oil rich in vitamin E and capable of enhancing linolenic acid activity and a preparation method of the linseed oil, and belongs to the technical field of edible oil processing. The preparation method of the flaxseed oil comprises the following steps: mechanically polishing and degumming flaxseeds, and then carrying out microwave thermal refining and low-temperature squeezing to obtain virgin flaxseed oil and a squeezed cake; adsorbing and deacidifying the primary oil through modified diatomite to obtain refined oil; carrying out ethanol solution ultrasonic extraction and supercritical CO2 extraction on the pressed cake to obtain a high-purity vitamin E extract; and finally, mixing the extract with the refined linseed oil to obtain the linseed oil. Through the whole-process low-temperature, physical adsorption and efficient extraction and purification process, the retention rate and enrichment degree of vitamin E are remarkably improved, meanwhile, nutritional ingredients such as alpha-linolenic acid are effectively protected, use of synthetic antioxidants is avoided, and the product has the advantages of being high in oxidation stability, good in safety, excellent in sensory quality and the like and is suitable for industrial production. The edible oil is suitable for being used as a nutritional supplement, edible oil or food additive.

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 disclosure provides a process for a hydrothermal feedstock treatment including direct steam injection and cooling, which may be performed in the absence of a reactor. The process can be used to reduce inorganic and organic contaminants, such as salts, minerals, metals, asphaltenes, polymers, and coke precursors in both renewable and non-renewable feedstocks. The hydrothermal feedstock treatment may also be used in soap acidulation processes.

Refined poultry fat comprising less than about 300 ppm of minerals and metals, wherein the refined poultry fat is resistant to bacterial growth when challenged with a bacterial species. The refined poultry fat is prepared from rendered poultry fat by a process comprising introducing moisture into the rendered poultry fat product to form a hydrated poultry fat product; (b) agitating and heating the hydrated poultry fat product such that droplets of water are dispersed throughout and coalesce with water-soluble impurities and / or particulate impurities in the hydrated poultry fat product to form a plurality of water-laden particles; and (c) removing the plurality of water-laden particles. The refined poultry fat can be used as an ingredient in the animal food industry, or can be used in the renewable energy industry.

The invention belongs to the technical field of food lipid and processing, particularly discloses a one-pot enzymatic cascade degumming and deacidification method for grease and application, and particularly relates to a method for performing cascade degumming and deacidification on multiple kinds of grease, generating functional lipid, improving the quality of the grease and maintaining the flavor of the grease. According to the method, phospholipase is immobilized through the porous carrier and is successfully applied to enzymatic cascade degumming and deacidification, and degumming, deacidification or cascade degumming and deacidification can be carried out on different raw materials according to requirements. Moreover, the prepared grease is rich in functional lipid components, the flavor is efficiently reserved, the oxidation stability is improved, the nutritional quality is improved, the immobilized carrier is cheap and easy to obtain, the immobilized enzyme can be repeatedly used for multiple times and is remarkably superior to free enzyme, and the industrial application potential is huge.

The invention provides an alkali refining mixer for refining rice bran oil, which comprises a mixer shell, an alkali liquor adding port arranged at the top of the mixer shell, a discharge port arranged at the bottom of the mixer shell, a stirring assembly rotatably arranged in the mixer shell, and a power device arranged at the top of the mixer shell and used for driving the stirring assembly to rotate, a mounting plate with a circular projection on the horizontal plane is fixedly arranged in the mixer shell, a bearing ring is arranged on the peripheral ring of the mounting plate, an annular groove plate is connected to the exterior of the bearing ring, the stirring assembly comprises a stirring shaft, a sun gear is fixedly arranged on the stirring shaft, and an inner gear ring is fixedly arranged at the bottom of the mounting plate; at least one group of planet gears are rotatably arranged at the bottom of the groove plate, the planet gears are respectively meshed with the sun gear and the inner gear ring, a stirring rod is fixedly arranged at the bottom of the groove plate, the stirring rod is of a hollow structure, the upper part of the stirring rod is communicated with the groove plate, and a plurality of liquid outlet holes are formed in the side wall of the stirring rod, so that alkali liquor and rice bran oil can be fully mixed; the alkali refining effect is improved.

The invention relates to a method for reducing the content of 3-chloropropanol ester and glycidyl ester in edible oil, and belongs to the technical field of edible oil production. The method comprises the steps of hydration degumming, alkali refining deacidification, adsorption decoloration by using a composite adsorbent, distillation deodorization and the like. By means of the method, the increase of the content of 3-chloropropanol ester and glycidyl ester in the oil in the deodorization link can be obviously inhibited, the content of 3-chloropropanol ester and glycidyl ester in the obtained edible oil is low and is lower than the European standard, and the edible safety of the edible oil can be effectively guaranteed.

The invention relates to the technical field of functional lipid preparation, in particular to high-purity nannochloropsis oculata polar lipid enriched by an enzymic method and a preparation method of the high-purity nannochloropsis oculata polar lipid. The method comprises the following steps: specifically and selectively hydrolyzing triglyceride by using immobilized Lip2 lipase to generate glycerol and free fatty acid, retaining and enriching polar lipid components, and carrying out centrifugal filtration and molecular distillation to obtain the high-purity nannochloropsis oculata polar lipid. The invention provides a method for preparing high-purity polar lipid by performing enzymolysis on nannochloropsis oculata oil by using lipase Lip2 produced by yarrowia lipolytica, which maximally retains the polar lipid and obtains a high-purity polar lipid product through the specific catalytic action of Lip2 lipase. The method which is mild in reaction condition, environment-friendly, simple in step and high in purity is provided for efficient enrichment of the nannochloropsis oculata polar lipid, the prepared polar lipid product is extremely high in purity, and the blank of efficient preparation of the nannochloropsis oculata polar lipid in the prior art is filled.

The invention discloses a preparation method for simultaneously and efficiently extracting crocodile polypeptide and crocodile oil, and relates to the technical field of biological extraction, crocodile meat is used as a raw material, and heating micro-pressure treatment is sequentially performed to promote component dissolution; a multi-stage enzymolysis process is adopted, alkaline protease, neutral protease and lipase are sequentially used, and a calcium phosphate system is used for assisting filtration and a natural antioxidant is added in a gradient manner in the enzymolysis process; performing plate frame filtration and standing layering subsequently to realize crude separation of the oil peptide; finally, the crocodile polypeptide liquid is subjected to multi-stage membrane filtration and spray drying, the crocodile crude oil is subjected to ultrasonic-assisted fishy smell removal, ceramic membrane fine filtration and gradient cooling phase change refining, and after enzymolysis treatment and before filtration, a composite additive is added into enzymatic hydrolysate and stirred. No organic solvent exists in the whole process, and the product yield, purity and oxidation stability are remarkably improved.

An adsorbent composition comprising: a plurality of particles of an acid-activated clay with a predetermined particle size. Each particle may have a surface comprising metal oxides or metal hydroxides and each particle may have a surface modified by coupling the metal oxides to ligands comprising amino-silane coupling agents configured to adsorb impurities. Each amino-silane coupling agents may comprise an alkoxysilane group and an amine group. The alkoxysilane group may couple to the metal oxide or metal peroxide of each particle. The adsorbent composition may comprise the amino-silane coupling agent and the acid-activated clay with a wight ratio between 2:2 and 3:1 (the acid-activated clay: the amino-silane coupling agent). The acid-activated clay may comprise a plurality of pore with a predetermined diameter formed between particles.

The invention relates to the technical field of cheese, and provides a vegetable fat composition, vegetable cheese and a preparation method thereof, the vegetable fat composition comprises myristic acid and stearic acid in a mass ratio of (19-22): (2.5-4.5), and the melting point of the vegetable fat composition is 24.0-26.0 DEG C. The coconut oil is subjected to two-stage dry fractionation, coconut oil fractionation components obtained through separation are combined according to a certain proportion to form the coconut oil composition with specific fatty acid composition and a certain melting point range, and when the coconut oil composition is applied to preparation of the vegetable cheese, the taste problem of the existing vegetable cheese can be solved.

The invention discloses an efficient separation and purification method of MLnM type medium-chain and long-chain triglyceride, and belongs to the technical field of separation and purification. The efficient separation and purification method comprises the following steps: S1, preparing a crude product; s2, mixing the crude product with an adsorbent for static adsorption; and S3, performing column chromatography elution on the static adsorption product, and performing dynamic chromatography to separate the MLnM type triglyceride. According to the efficient separation and purification method of the MLnM type medium-long-chain triglyceride, a neutral aluminum oxide static adsorption and dynamic column chromatography coupling process is adopted, the purity of the MLnM type triglyceride can be greatly improved and is far higher than that of other adsorbents, the whole process steps are clear, the steps of raw material preparation, static adsorption, dynamic chromatography and the like are included, and the method is suitable for industrial production. The operation process is easy for standardized and large-scale production, and does not need to depend on complex equipment such as molecular distillation, supercritical CO2 extraction and the like.

Provided are a marine phospholipase C mutant and a use thereof. Compared with wild-type (WT) enzyme protein, at 40°C and under conditions where enzyme protein activity remains essentially unchanged, the enzyme protein half-life of the constructed mutant can be increased to 3.46 and 9.25 times that of the original enzyme protein, and the residual phosphorus content in degummed oil can be reduced from 551 ppm to 72 ppm, which shows a significant improvement over the final residual phosphorus content of 175 ppm for the blank control and the final residual phosphorus content of 131 ppm for the WT. These results demonstrate that the enzyme has improved thermal stability, enables oil degumming under various conditions, and is suitable for a broader range of industrial applications.

The invention discloses a supported composite zinc catalyst and application thereof in biodiesel, and belongs to the technical field of catalyst preparation. The supported composite zinc catalyst provided by the invention comprises the following components: an AlPO4-SiO2 composite carrier, a zinc-cerium bimetallic active component supported on the carrier, and a hydrophobic modification layer coated outside the active component. The supported composite zinc catalyst has higher tolerance to moisture and free fatty acid in the waste grease, saponification side reaction is reduced, raw material pretreatment requirements are simplified, the catalyst is easy to recover and reuse, and production cost and environmental burden are remarkably reduced.

The invention relates to the field of extraction of sacha inchi oil, in particular to a preparation method and application of sacha inchi oil, and aims to solve the problems of large loss of heat-sensitive components, solvent residue and low oil yield in the traditional process. The ratio of cellulase to pectinase to xylanase to lipase is 3: 2: 1: 0.5, and carrying out enzymolysis for 2-3 hours at the pH value of 4.5-5.5 and the temperature of 45-50 DEG C; the obtained enzymolysis product is subjected to 28-40kHz ultrasonic treatment for 20-30 minutes, and then is subjected to two-stage gradient squeezing (pre-squeezing at 50-55 DEG C to final squeezing at 35-40 DEG C) in combination with 0.1 mu m ceramic membrane filtration, so that efficient oil extraction and active ingredient protection are realized. The oil yield of the sacha inchi oil is increased to 50.0%, the content of alpha-linolenic acid is larger than or equal to 42%, the content of vitamin E reaches 158 mg / 100 g, no solvent is left, and the sacha inchi oil is suitable for the fields of functional food and cosmetics.

Provided are methods and systems for recovering protein product powder, purified water and omega-3 oil from an animal tissue. The methods and systems use high throughput extraction filtration separation systems. Animal tissue, for example fish, and organic solvent are directly or indirectly transferred into one of the optional extraction or filtration systems. The extraction-filtration systems provide a high degree of filtration performance and product washing efficiency. Each system ultimately yields a product wet cake that includes the protein product. The protein product wet cake is then further dried in a drying unit to yield the final protein powder product. In each system, the process filtrates undergo further processing by filtration and distillation to recover the organic solvent and separate out the omega-3 fish oil. The recovered organic solvent can be recycled back into the process. Solid protein product powder is thus recovered, along with omega-3 oil, purified water and recovered solvent.

The utility model discloses an animal fat oil refining oil residue separating device which comprises a separating box, a rotatable separating filter cylinder is arranged in an inner cavity of the separating box, a supporting table is fixedly connected to the left side of the top of the separating box, and a plurality of anti-blocking assemblies are arranged at the top of the supporting table. The anti-blocking assembly comprises a base fixedly connected to the top of the supporting table, an inner cavity of the base is rotationally connected with a swing rod, a beating plate is arranged on the right side of the swing rod, and the top of the supporting table is rotationally connected with an n-shaped rotating rod. According to the utility model, the separation box, the separation filter cartridge and the oil outlet pipe are matched for use to separate oil residues and oil liquid after refining, and meanwhile, the anti-blocking assembly and the n-shaped rotating rod are matched for use to repeatedly beat the surface of the separation filter cartridge, so that pores in the surface of the separation filter cartridge are prevented from being blocked by the oil residues, and the oil residue separation effect is improved. Therefore, the purposes of quickly separating and effectively preventing oil residues from blocking pores can be achieved.

The invention relates to the technical field of grease filtering, and discloses a filtering and purifying device for edible oil production, which comprises a supporting seat, a filtering pot is arranged on the supporting seat, a guide column is fixedly connected to the supporting seat, the guide column is located in the middle of the filtering pot, an inclined plane is arranged at the upper end of the guide column, and the inclined plane is located in the middle of the filtering pot. A lower supporting disc sleeves the guide column, a filter screen is arranged above the lower supporting disc, an upper supporting disc is arranged above the filter screen, and the lower supporting disc and the filter screen are in sliding connection with the inner wall of the filter pot. According to the filtering and purifying device for edible oil production, in the oil filtering process, the distance between two filter screens can be automatically increased, meanwhile, through the design of an upper supporting disc, in the process that the distance between the two filter screens is increased, the upper supporting disc can rotate, impurities on the filter screens can be spread out, and the filtering and purifying device is convenient to use. The filter screen is prevented from being blocked by impurities.

The invention relates to the technical field of edible oil processing, and discloses a continuous refining method for edible oil, which is characterized by comprising the following steps: raw material filtration, degumming, alkali refining deacidification, soapstock and water washing, dehydration treatment, decoloration treatment, filtration separation and deodorization treatment. According to the continuous refining method for the edible oil, continuous operation is achieved in the whole refining process, all procedures are closely linked from pretreatment of crude oil to output of final refined oil, the production efficiency is greatly improved, compared with an intermittent refining process, the production efficiency is improved, the requirement of large-scale production can be met, and the production cost is reduced by optimizing process parameters. And for example, the reaction of each process is carried out at proper temperature, pressure and stirring speed, so that unnecessary energy consumption is reduced. And meanwhile, the starting and stopping times of equipment are reduced through continuous production, and the energy loss is further reduced. Practical production verifies that compared with a traditional process, the refining method has the advantages that the energy consumption is reduced, and the production cost is effectively saved.

The invention relates to the technical field of insect grease extraction, and discloses a method for extracting hermetia illucens grease through hot pressing. The method comprises the following steps: (1) cooking hermetia illucens larvae in hot water at 40-75 DEG C for 5-15 minutes, and cleaning to obtain a larva material I; (2) drying the larvae I at the temperature of 60 to 80 DEG C, so as to obtain a larva material II with the water content of 55.0 to 67.5 weight percent; (3) mechanically squeezing the larva material II at the temperature of 80-100 DEG C to obtain slurry; and (4) centrifugally separating the slurry into an oil phase, a water phase and a solid phase, and recovering the oil phase to obtain the hermetia illucens grease. The method provided by the invention can significantly improve the yield and quality of the hermetia illucens grease extracted by hot pressing, and can effectively solve the problems of low high-valued utilization rate and low grease extraction efficiency of large hermetia illucens breeding factories.

The invention provides a preparation method of peanut oil with high flavor substance content and low phospholipid content. The preparation method of the peanut oil comprises the following steps: (1) pretreating a peanut raw material, namely pretreating the peanut raw material for preparing the peanut oil by using a solution containing enzymolysis products of peanuts, pre-frying the soaked or sprayed peanut raw material, and controlling the moisture content of the fried peanut raw material to be 7-10%; (2) microwave treatment: performing microwave treatment on the pre-fried peanuts obtained in the step (1); and (3) squeezing oil. The peanut oil prepared by the method is high in flavor substance content and low in phospholipid content. The invention further discloses blend oil containing the peanut oil.

The invention belongs to the technical field of grease refining and refining, and particularly relates to a rice bran oil processing and leaching process and system which comprises a leacher, and the leacher comprises main equipment, material grids, a spraying device, an oil collecting tank, a waste discharging tank and a driving device; the partition frames are connected into the material grids in a sliding mode through springs, and the partition frames are evenly and vertically distributed; when the partition plates are in the horizontal state, the partition plates form a closed state, rice bran is blocked, the flow speed of a solvent penetrating through the partition plates is reduced, the flow speed of the solvent is increased, and the situation that the oil extraction effect is reduced due to too high flow speed of the solvent and insufficient contact of the solvent and the rice bran caused by too high air permeability in the rice bran in the material grid is avoided; for example, due to the fact that the partition plate is closed, a layer of solvent flows slowly and accumulates on the top, contact between the rice bran and the solvent is facilitated, and the leaching effect is improved; in addition, the fresh solvent is injected, the old solvent gradually flows down, and subsequent injection of the fresh solvent is not affected in the mode.

The invention discloses a phospholipase A1 mutant and application thereof. According to the invention, PLA1 is modified to obtain a PLA1 mutant, compared with wild PLA1, the PLA1 mutant has the advantages that the optimum temperature is kept unchanged, the PLA1 mutant has higher phospholipase A1 activity at 40-50 DEG C, the optimum pH is changed from 3 to 8, and the PLA1 mutant keeps high phospholipase activity at the pH of 3-9 and is higher than the phospholipase activity of the PLA1 wild type under the optimum condition; the pH (Potential of Hydrogen) adaptability range of the PLA1 is widened. Therefore, the PLA1 mutant disclosed by the invention has a better application prospect, better meets the requirement on enzyme performance in phospholipid processing, can be used for degumming grease and producing lysophosphatide, and is applied to the fields of biology, food, medicine, beauty, agriculture, industry and the like.

The invention relates to the technical field of insulating oil purification, and particularly discloses a deep purification and performance improvement method of vegetable insulating oil, which comprises the following steps: determining fluorination parameters through molecular dynamics simulation, carrying out surface fluorination modification on a polypropylene filter membrane, and constructing a high-coverage C-F bond layer; specific endogenous impurities such as gossypol, phospholipid and pigment in the vegetable insulating oil such as cotton seeds can be effectively removed, and the problems of oxidation acceleration, insulation performance reduction and equipment aging caused by the specific endogenous impurities are avoided; and a core technical support is provided for long-acting stable operation of the vegetable insulating oil.

The utility model relates to the field of oil refining, and discloses a linseed oil refining tank which comprises a tank body, an upper cover is arranged at the center of the upper end face of the tank body, four fixed connecting pieces are annularly arranged on the upper end face of the upper cover, and four vacuum pumps are annularly arranged on the upper end face of the upper cover. A protective supporting structure is arranged on the lower portion of the center of the outer side wall of the tank body, a feeding port is formed in one side of the center of the upper end face of the upper cover, a discharging electromagnetic valve is arranged in the center of the lower end face of the tank body, and a heating structure is arranged on the inner side wall of the tank body. According to the stirring device, the sliding blocks are matched with the sliding grooves, the limiting discs are connected with the bolts to work cooperatively with the output shaft, the turbulent flow effect of the multiple stirring grooves is increased in the stirring process, and the synergistic effect of the stirring shell and the stirring rod can cover a large stirring range; and the linseed oil at each position in the tank can be effectively stirred, so that the reaction rate and the quality uniformity can be improved.

The application relates to the technical field of oil refining, in particular to a processing device for removing cyclopropene fatty acids in cottonseed oil, which comprises a shell and a shell cover, the shell cover is fixedly installed on the top of the shell, a mixing assembly is movably installed in the shell, the mixing assembly comprises a screening frame, a sliding plate and two connecting pipes, one end of the connecting pipe is fixedly connected with the bottom of the shell and communicates with the bottom of the shell. The mixing liquid is sprayed through the corresponding nozzles, so that the mixing liquid collides with each other to be refined, the mixing efficiency of the mixing liquid is improved, the mixing liquid is separated through the sliding plate and the screening frame, the screening frame scrapes off and screens the soap nuts and impurities in the mixing liquid, the sliding plate pushes the mixing liquid upwards, the mixing effect of the mixing liquid is improved, the air in the shell is extruded, so that the air cleans the soap nuts and impurities in the connecting pipe, the diffused mixing liquid is impacted and diffused by the rotating impeller, so that the mixing liquid is further refined and the mixing efficiency is improved, and the impeller scrapes off the soap nuts and impurities above the screen through rotation.

The utility model discloses a squeezing device for feed grade duck oil production and processing, and relates to the field of duck oil processing, the squeezing device comprises a base, the upper end of the base is fixedly connected with an arc-shaped plate, the lower end of the arc-shaped plate is provided with a hydraulic rod, the lower end of the hydraulic rod is fixedly connected with a connecting block, and the lower end of the connecting block is fixedly connected with a fixed seat; a sliding block is arranged in the fixed seat; the pressing device has the advantages that the spring, the sliding block and the clamping rod are matched with the mounting rod and the clamping hole in the mounting rod, so that the pressing plate can be quickly assembled and disassembled, the pressing plate can be replaced when being damaged, the downtime of equipment is shortened, and meanwhile, the overall pressing efficiency is also improved; according to the device, the position of a filter screen can be adjusted through a moving block, a guide block, a motor, a lead screw and other assemblies, then disintegrating slag in a filter box can be fished out, the cleaning difficulty of workers is reduced, meanwhile, duck fat can be filtered again through the filter screen, and the squeezing quality is further improved.

The utility model relates to a settling box for filtering crude oil. The settling box comprises a shell (1), and a crawler loader (4), a sieve plate (3), an annular scraper chain (2) and a grating (5) which are arranged in the shell (1), the sieve plate (3) is transversely arranged on the side portion of a slag inlet of the slagging-off machine (4), the annular scraper chain (2) is arranged around the sieve plate (3) and the slagging-off machine (4), the grid (5) is in a Sudoku shape, an oil passing opening (41) of the slagging-off machine (4) right faces one corner of a Sudoku on the lower middle portion of the shell (1), an oil outlet (101) on the side portion of the shell (1) is located on the front side of the middle of the grid (5), and a circulation opening (50) is formed in the upper portion of the grid (5). Crude oil on the upper side is baffled back and forth according to a certain path, and most of crude oil on the lower side is isolated and is in a standing state, so that the crude oil and oil residue separation effect is enhanced.