451 results about "Potato starch" patented technology

The invention discloses multistage potato starch sewage treatment equipment, and relates to the technical field of sewage treatment.The multistage potato starch sewage treatment equipment comprises a treatment pond and a solid waste isolation mechanism, the solid waste isolation mechanism comprises two isolation ponds and a lifting frame, and the two isolation ponds are both arranged at the left end of the interior of the treatment pond; the two lifting frames are movably arranged in the two isolation pools respectively, the solid waste discharging mechanism comprises two movable boxes and a reciprocating box, and the two movable boxes are movably arranged at the front ends and the rear ends of the top ends of the right sides of the two isolation pools respectively. After the lifting frame is driven to ascend, the movable grating is driven to rotate by 180 degrees through movement of the reciprocating box, solid waste accumulated on the movable grating can be conveniently discharged out of the isolation pool, the equipment can continuously block the solid waste in potato starch sewage, obstructions are automatically discharged, the manual workload is relieved, and the working efficiency is improved. The pretreatment efficiency of the potato starch sewage is improved.

The invention belongs to the technical field of hydroxypropyl starch ether, and relates to a preparation method of low-cost potato hydroxypropyl starch ether.The preparation method comprises the steps that an alkalizing agent, a solvent and an inhibitor are fully mixed, then potato starch is added for alkalization, then an etherifying agent is added, heating is conducted for modification, potato hydroxypropyl starch ether is obtained, and after a reaction product is subjected to desolvation, the potato hydroxypropyl starch ether is obtained. And drying is not needed, and crushing can be directly carried out. The preparation method has the advantages of small solvent addition amount, high utilization rate of the alcohol solvent and the etherifying agent, low reaction temperature and expansion pressure control, safety, high efficiency, small environmental pollution, improvement of the production stability and great reduction of the production cost; the produced product has the advantages of high hydroxypropyl content, high viscosity, high solution transparency, low ash content and the like; the process is simple, the cost is low, industrial production is facilitated, and the market prospect is wide.

The invention discloses a children's toy material prepared from plant starch, which is mainly prepared from the following raw material components in percentage by weight: 55 to 70 percent of plant starch, 10 to 18 percent of corn starch compatilizer, 10 to 12 percent of polylactic acid (PLA), 10 to 15 percent of polylactic acid (PLA) compatilizer, 1 to 2 percent of nucleating agent, 0.1 to 1 percent of antioxidant, 0.5 to 2 percent of antistatic agent and 1 to 2 percent of coloring agent. The plant starch is one or a mixture of more of corn starch, wheat starch, potato starch, rice starch and cassava starch; the relative molecular weight range of polylactic acid PLA is 1 * 10 < 5 >-5 * 10 < 5 >; the nucleating agent is a polylactic acid stereocomplex (SC) or a polylactic acid PLLA / polylactic acid PDLA stereocomplex; the antioxidant is ascorbic acid vitamin C. The invention further discloses a method for manufacturing the plant starch toy for children.

The utility model discloses a convenient-to-adjust potato starch sampling device which comprises a blanking pipe, a sampling barrel is fixedly mounted on the blanking pipe, a hopper is fixedly mounted on the bottom wall of the sampling barrel, a rectangular rod is slidably connected to one side wall, far away from the blanking pipe, of the sampling barrel, a rotating rod is rotatably mounted in the rectangular rod, and the rotating rod is fixedly connected with the blanking pipe. A sampling cup is fixedly welded at one end, positioned in the inner cavity of the sampling barrel, of the rotating rod. In the resetting process of the sampling cup, the trowelling plate can trowelling the top of the sampling cup passing through the trowelling plate, mountain-shaped potato powder on the top of the sampling cup is removed, the sampling accuracy of the sampling cup is ensured, the rectangular rod can ensure that the sampling cup does not deflect when the sampling cup moves back and forth, and when the sampling cup needs to be turned over, the sampling cup can be turned over conveniently. During sampling, the stud can be unscrewed to release the limiting of the second pulling plate, the rotating rod can be rotated through the second pulling plate to drive the sampling cup to turn over, and the sampled potato powder is poured into a sampling bottle mounted at the bottom of the hopper.

A method of making a vegetable- and / or fruit-containing snack food is described. The snack food includes a rigid starch matrix that contains potato starch and a plurality of individual pieces of vegetable and / or fruit randomly distributed throughout the matrix. At least 50% by number of the pieces have a minimum dimension of at least 0.75 mm and a maximum dimension of up to 7 mm. The matrix includes a first cellular structure of first cellular pores having a first pore size distribution and the pieces include a second cellular structure of second cellular pores having a second pore size distribution. At least some of the second cellular pores are defined by polysaccharide cell walls of the respective vegetable and / or fruit. The first pore size distribution has a larger number-average pore size and a wider distribution than the second pore size distribution.

The invention discloses wet instant vermicelli, which is prepared by taking sweet potato starch or potato starch as a raw material, adding ozone water for size mixing, spreading the size, steaming for forming, aging, cutting into strips, soaking in ozone water and draining. During size mixing, the concentration of ozone in the ozone water is 15.0-25.0 mg / kg; during soaking in the ozone water, the concentration of ozone in the ozone water is 10.0-25.0 mg / kg, and the soaking time in the ozone water is 0.5-1.5 min. According to the method, a gradient sterilization technology is utilized, green and pollution-free high-concentration ozone water is adopted to sterilize the starch raw material and the product respectively, a high-temperature steaming process is combined to prepare the wet instant vermicelli, and the product is sanitary, safe and free of chemical additive residues. The defects that traditional dry vermicelli products need to be dried for a long time, energy consumption is high, and convenience is poor are overcome; the product is ready to eat and use, does not need to be rehydrated in advance, and can be stored for 3-6 months at normal temperature.

The application discloses a method for recovering active glycoprotein Patatin from potato starch processing waste juice, and belongs to the technical field of protein extraction. The method is characterized in that the active Patatin protein is efficiently separated by using the combination of ammonium sulfate fractionation precipitation, anion exchange chromatography, Con A affinity chromatography and gel chromatography, and the obtained Patatin protein retains the original protein structure and biological function activity. Compared with the prior art, the method has better separation purity and higher efficiency, and the obtained Patatin protein has complete protein higher structure and function activity, and has a better application scene.

The invention discloses a potato starch processing waste residue fermentation device and method. The device comprises a tank body with a sterile gas filtering discharge port, an automatic inoculation box is arranged outside the tank body, and a stirring device and an automatic gas exchange device are arranged inside the tank body; the automatic inoculation box is mounted above the side of the tank body, a bacterial liquid bottle and an alcohol lamp are arranged in the automatic inoculation box, the bacterial liquid bottle is connected with an inoculation opening communicated with the interior of the tank body through a closed pipeline and feeds bacterial liquid into the fermentation system, and the alcohol lamp is arranged below the inoculation opening and heats the inoculation opening; the automatic gas exchange device comprises a pressure sensor and a plurality of air distributors, and sterile air equipment outside the tank body is communicated with each air distributor through a sterile air inlet and inputs sterile air into the fermentation system; the pressure sensor is mounted at the sterile gas filtering and discharging port, provides a real-time air pressure signal for the PLC control system and controls the gas discharging of the sterile gas filtering and discharging port, so that the problems that the existing fermentation lacks a proper device and the fermentation efficiency is low are finally solved.

The invention discloses a method for identifying and quantifying multi-type starch adulterated sweet potato starch. The method comprises the following steps of: establishing a characteristic near infrared spectrum database of sweet potato starch, potato starch, corn starch, cassava starch and the like by taking common low-value raw material starch such as cassava starch, corn starch and the like as a doping object of sweet potato starch and taking a near infrared spectrum technology as a detection means; pre-treating the obtained spectrum by combining a stoichiometric method and establishing a multi-type identification model to realize identification of pure sweet potato starch and non-pure sweet potato starch, and predicting the proportion of the sweet potato starch in the sweet potato starch. The method disclosed by the invention has important reference significance for formulating a potato starch classification standard, can be used for quickly and accurately identifying the starch type, is beneficial to fighting against bad behaviors such as counterfeiting and adulteration of starch in the market, guides the collection, storage and processing of sweet potato starch, and helps to screen high-quality potato starch raw materials for potato starch products; and the overall value and practicability of the starch-based product are improved.

The invention discloses an application of plant starch in preparation of a product for dispelling effects of alcohol and protecting liver. The golden sweet potato starch can be effectively used for dispelling the effects of alcohol and protecting the liver for the first time, the activity of key enzymes ADH and ALDH in an ethanol metabolism path is enhanced, the in-vivo ethanol metabolism speed is increased, liver damage caused by drunkenness is relieved, the golden sweet potato starch has the body protection effect, meanwhile, the drunkenness rate can be reduced, the drunkenness time can be shortened, the content of ALT, AST, TC, TG and LDL-C in the body can be remarkably reduced, and the anti-alcohol effect is achieved. According to the invention, the content of HDL-C is increased, the activity of CAT, SOD and GSH in the liver of the organism is remarkably improved, the MDA level of the liver is reduced, the fat accumulation condition of the liver of the organism is remarkably improved, and a new direction is provided for preparation of products for dispelling the effects of alcohol and protecting the liver.

The invention belongs to the technical field of wastewater treatment, and particularly relates to a potato starch wastewater treatment device which comprises a bottom plate, a treatment box is fixedly connected to one side of the upper end face of the bottom plate, a first filter box is fixedly connected to the left side of the upper end face of the bottom plate, and a second filter box is fixedly connected to the right side of the upper end face of the bottom plate. An adjustable flocculating agent adding assembly is also arranged on the bottom plate. According to the invention, the flocculant adding assembly is utilized to accurately control the dosage and adding time of the flocculant according to real-time water quality monitoring data, so that the flocculant is added for multiple times at a preset reasonable quantity and time so as to adapt to different adding requirements, and the situation of excessive treatment or insufficient treatment is avoided.

The invention discloses fresh and wet sweet potato vermicelli and a preparation method thereof, the fresh and wet sweet potato vermicelli comprises the processing raw materials of sweet potato starch, domestic drinking water, an acidity regulator and a fresh-keeping preservative, the usage amount of the fresh-keeping preservative is 0.05-0.6% of the weight of the starch raw material, and the preparation method comprises the following steps: weighing the raw materials of the fresh and wet vermicelli, preparing starchy sauce, preparing dough, mixing slurry, curing and forming, and the like, thereby obtaining the fresh and wet sweet potato vermicelli. Aging the cured vermicelli for 1-2.5 hours in an environment of 10-1 DEG C, so as to obtain aged vermicelli; and cutting the aged vermicelli into strips, performing vacuum packaging, and performing pasteurization to obtain the product. In the preparation process of the fresh and wet sweet potato vermicelli, potassium cinnamate, thymol and aloe extract are added as fresh-keeping preservatives. The method overcomes the problem that chemical preservatives such as sodium dehydroacetate cannot be added into the fresh and wet sweet potato vermicelli, and prolongs the shelf life of the fresh and wet sweet potato vermicelli.

The invention discloses potato starch nano-carrier immobilized lipase and a preparation method thereof, and relates to the technical field of biological catalysis. The immobilized lipase comprises a lipase and a carrier, and the lipase is immobilized on the carrier; the carrier is potato starch modified magnetic nanoparticles. The immobilized lipase provided by the invention takes the magnetic potato starch nanoparticles as a carrier and has the advantages of being green and environment-friendly and easily available in materials, and the lipase is successfully immobilized on the magnetic nanoparticles by using the potato starch and the traditional glutaraldehyde as cross-linking agents. The method not only improves the activity and stability of the immobilized enzyme, but also has good biocompatibility and safety. By optimizing parameters such as potato starch dosage, enzyme concentration and immobilization time, the obtained immobilized enzyme shows excellent storage stability and repeated utilization rate. In addition, the method provides reference for preparation of other high-performance immobilized enzymes.

The invention relates to a preparation method and application of a corn straw beverage, belongs to the technical field of plant resource processing, and solves the technical problem of activity loss caused by easy oxidative degradation of flavonoid compounds in a corn straw water extract. According to the technical scheme, the method comprises the following steps: crushing corn straws, soaking in water, performing heat extraction for multiple times to obtain an extracting solution, performing rough filtration and centrifugation, and concentrating to obtain a water extracting solution; and mixing the water extract, sucralose, citric acid, potassium sorbate and purified water to prepare a beverage, sterilizing and filling. Flavonoid compounds are embedded through a potato starch nanoparticle and beta-cyclodextrin composite carrier, a sodium alginate-chitosan microcapsule double-layer coating and microcapsule jelly particle preparation technology is combined, a gel network is formed by compounding kappa-carrageenan and konjac glucomannan, and the embedding stability and release controllability of active ingredients are improved. The beverage prepared by the method has both herbal flavor and crisp and tender taste of jelly particles, effectively delays degradation of flavonoid compounds, and is suitable for being applied to development of functional plant beverages.

The invention discloses a super absorbent material and side leakage prevention paper diapers, and belongs to the field of hygienic product materials. Comprising the following steps: cooling acrylic acid in an ice-water bath, and partially neutralizing the acrylic acid by using a sodium hydroxide solution; mixing potato starch with deionized water, and gelatinizing at high temperature to obtain gelatinized starch; mixing gelatinized starch, neutralized acrylic acid, potassium persulfate and deionized water; uniformly stirring under the protection of nitrogen, heating and carrying out graft copolymerization reaction to obtain a copolymer; adding modified silicon dioxide into the copolymer, and uniformly dispersing; then adding an oxetane compound, and carrying out a cross-linking reaction at a high temperature to obtain a super absorbent material; wherein the modified silicon dioxide has a porous structure, and nano-silver particles are loaded in pore walls. The super absorbent material disclosed by the invention effectively breaks through the gel blocking effect of the traditional high-molecular water-absorbent resin, has ultrahigh liquid absorption capacity and water locking capacity, and realizes slow-release long-acting bacteriostasis at the same time.

The invention provides a starch-based soft capsule composition, a starch-based soft capsule and a preparation method of the starch-based soft capsule, and belongs to the technical field of medicines. The starch-based soft capsule composition is characterized by being prepared from the following components in parts by weight: 50 to 100 parts of plant starch, 20 to 100 parts of modified starch, 0.1 to 5 parts of thickening agent and 0.1 to 5 parts of plasticizer, the plant starch comprises pea starch and corn starch in a mass ratio of (10-60): (40-50); the modified starch comprises modified corn starch and modified potato starch in a mass ratio of (1-5): (1-8). The starch-based soft capsule disclosed by the invention is high in joint closing rate; the starch-based soft capsule is high in transparency, not easy to age and good in stability after being stored for a long time.

The invention relates to a saline-alkali soil improver, and belongs to the field of saline-alkali soil treatment, and the saline-alkali soil improver comprises the following substances by weight: 15-20 parts of amino-oligosaccharin; 4 to 6 parts of astragalus oligosaccharide; 3-5 parts of ligusticum chuanxiong hort oligosaccharide; 6-8 parts of soybean oligosaccharide; 2-4 parts of Chinese wolfberry oligosaccharide; 20 to 30 parts of modified polyaspartic acid; 3-5 parts of a complex microbial inoculant; 4-6 parts of calcium carbonate; and 30-40 parts of sweet potato starch production residual peel residues. The amino-oligosaccharin, the astragalus oligosaccharide, the ligusticum chuanxiong hort oligosaccharide, the soybean oligosaccharide and the Chinese wolfberry oligosaccharide are added, so that the effects of promoting plant growth, improving soil quality and enhancing the salt resistance of plants can be achieved; through the synergistic effect of various oligosaccharides, effective microbial communities in soil can be activated, regeneration of harmful microbial communities can be inhibited, soil nutrition can be increased, the soil structure can be improved, the immunity of plants can be improved, and plant diseases and insect pests can be reduced, so that the fertility of the soil and the growth environment of the plants can be improved, and the growth of the plants can be promoted.

The invention discloses a degradable antibacterial preservative film with medicinal and edible extracts as well as a preparation method and application of the degradable antibacterial preservative film, and belongs to the technical field of preservative films. The method comprises the following steps: (1) dissolving chitosan in an acetic acid aqueous solution, adding a wormwood extract into the obtained chitosan solution, and stirring at a certain temperature to form a mixed solution; (2) adding potato starch into water to prepare a potato starch solution; gelatinizing the potato starch solution, adding glycerol into the gelatinized solution at a certain temperature, and stirring to obtain potato starch gelatinized solution; (3) mixing the mixed solution and the potato starch gelatinization solution according to a certain proportion, pouring the mixture to a polytetrafluoroethylene substrate, and drying to form a film, so as to obtain the degradable antibacterial preservative film. The method has the advantages of being convenient in process, wide in raw material source and suitable for large-scale production. The prepared degradable antibacterial preservative film has excellent biodegradability, preservation performance and oxidation resistance, and has a wide application prospect in the field of food preservation.

The utility model relates to the technical field of precipitation devices, and discloses a precipitation device for sweet potato starch production, which comprises a separation barrel, a motor protection shell, a first motor, a sealing top cover and a mounting frame, a second motor is fixedly mounted in the middle of the inner wall of the bottom of the mounting frame, a rotating disc is fixedly mounted at the output end of the second motor, a deviation rod is fixedly mounted at the end, away from the circle center, of the top of the rotating disc, a connecting rod is fixedly connected to the upper end of the deviation rod and is in an L shape, and a screen frame is arranged on the front side of the connecting rod. The middle of the rear side wall of the screen frame is fixedly connected with the front end of the connecting rod, and a screen is fixedly installed at the bottom of the screen frame. According to the sweet potato raw liquid screening device, sweet potato raw liquid flowing into the screen is screened back and forth, so that impurities contained in the sweet potato raw liquid are screened, and the practicability is improved.

The invention relates to the technical field of processing potato starch, and discloses a pulverizing device for processing potato starch, comprising a shell, a screening mechanism is arranged inside the shell, a pulverizing mechanism is arranged inside the screening mechanism, a feed plate is installed at the rear end of the shell, a rasp is arranged at the lower end of the shell, a discharge port is opened at the lower end of the rasp, and a confluence pool is arranged below the discharge port. The advantages of the invention are that the processing amount of potato pulverization per unit time can be increased, and large potato blocks can be transported into a rotary drum through a screening belt and an inclined plate, and cut into blocks again, so as to ensure that the potato blocks are fully broken, the starch particles are fully released, and the production quality is improved.

The present invention discloses a multi-stage potato starch wastewater treatment equipment, which relates to the technical field of wastewater treatment, including a treatment tank, a solid waste isolation mechanism, the solid waste isolation mechanism including an isolation tank and a lifting frame, the isolation tanks having two in total, both of which are opened at the inner left end of the treatment tank, the lifting frames having two in total and movably arranged in the two isolation tanks, and a solid waste discharge mechanism, the solid waste discharge mechanism including a movable box and a reciprocating box, the movable boxes having two in total and movably arranged at the front and rear ends of the right top ends of the two isolation tanks. After the lifting frame is driven to rise, the movable grille is driven to rotate 180 degrees by the movement of the reciprocating box, so that the solid waste accumulated on the movable grille is discharged into the isolation tank, so that the equipment can continuously and uninterruptedly block the solid waste in the potato starch wastewater, and automatically discharge the blocking materials, thereby reducing the manual workload and improving the pretreatment efficiency of the potato starch wastewater.

The invention discloses bamboo fiber full-biodegradable tableware which is prepared from the following components in parts by weight: 40-50 parts of poly (butylene succinate), 15-20 parts of bamboo fiber, 12-16 parts of sweet potato starch, 8-12 parts of sodium alginate and the like, the bamboo fiber is pretreated by a sodium hydroxide solution, and montmorillonite is modified by a silane coupling agent KH-570. The preparation method comprises the steps of high-speed mixing, twin-screw extrusion granulation, injection molding, drying, ultraviolet sterilization and the like, five temperature zones are set for twin-screw extrusion, and the injection molding temperature is controlled to be 165-175 DEG C. The hydrophobicity is improved without depending on silicone oil and the like, and the synergism of mechanics and degradability is better; high-temperature heating is not needed, energy consumption is lower, and antibacterial and mildew-proof functions are added. The 60-day biodegradation rate of the tableware is larger than or equal to 95%, the tensile strength is larger than or equal to 26 MPa, and the tableware has excellent water resistance and oil resistance and meets the requirements for environmental protection and use.

The present invention discloses a liquid nutritional meal replacement and fat-reducing food and a preparation method thereof, comprising the following steps: S1, preparation of a composite resistant dextrin; S2, preparation of a Poria cocos extract; S3, preparation of a composite plant extract; S4, preparation of the liquid nutritional meal replacement and fat-reducing food. The liquid nutritional meal replacement and fat-reducing food has high nutritional value, good taste, and a strong sense of fullness. By preparing resistant dextrin using potato starch as a raw material, then coating it with corn starch, and supplementing it with a composite plant extract, it can not only improve the sense of fullness, but also slow down the digestion rate of the meal replacement food in the stomach and intestines, thereby reducing the rapid increase in blood sugar after a meal, having a significant effect on weight control, and slowing down the gas production rate of the resistant dextrin fermented in the intestines, reducing the discomfort caused by abdominal distension.

The invention discloses a method for rapidly detecting the quality of potatoes in low-temperature storage and normal-temperature sugar recovery processes, and belongs to the technical field of agricultural product detection. Obtaining multi-variety colored potato samples under different storage conditions and storage time; physicochemical determination is carried out on four quality indexes of potato starch, soluble solids, moisture and hardness in the storage process; acquiring an absorption coefficient spectrum and a reduced scattering coefficient spectrum of the sample slice in a range of 400-1700nm; based on the absorption coefficient spectrum and the reduced scattering coefficient spectrum, establishing and selecting an optimal quantitative prediction model of each quality index of the potatoes through different spectrum preprocessing, spectrum dimension reduction and feature extraction algorithms and a machine learning regression algorithm; and using the optimal model to rapidly detect the corresponding quality index. The method can provide a new rapid and integrated detection means for the key physical and chemical quality of the potatoes in the low-temperature storage and normal-temperature sugar return treatment processes.

The invention belongs to the technical field of microcapsule preparation and probiotic embedding, and particularly relates to a potato resistant starch-based lactobacillus plantarum microcapsule as well as a preparation method and application thereof. The preparation method comprises the following steps: S1, preparing the potato type II resistant starch; s2, preparing a bacterial suspension; and S3, preparing the lactobacillus plantarum embedded microcapsule. The potato starch is subjected to enzymolysis and drying treatment to obtain the potato type II resistant starch, and digestible starch components can be specifically eliminated; then, potato type II resistant starch, sodium alginate, Tween 80, soybean oil and calcium chloride are used for forming an embedding system for embedding lactobacillus plantarum, a compact and stable microcapsule network structure is constructed, the microcapsule network structure is good in stability and not prone to digestion, absorption and decomposition, the ionic crosslinking-hydrogen bond synergistic interaction is achieved, and the lactobacillus plantarum microcapsule is prepared. The embedding effect and the survival rate of the lactobacillus plantarum are improved.

The invention relates to the field of functional food engineering, in particular to low-protein and high-energy baked food as well as a preparation method and application thereof. The low-protein and high-energy baked food is prepared from the following raw materials by mass: 15 to 25 g of sweet potato starch, 15 to 25 g of corn starch, 15 to 25 g of potato starch, 15 to 25 g of pea starch, 35 to 45 g of eggs, 4 to 6 g of corn oil, 8 to 12 g of linseed oil, 0.5 to 1.2 g of haematococcus pluvialis powder, 0.1 to 0.3 g of sodium ascorbate, 15 to 25 g of milk, 10 to 14 g of carrot juice, 18 to 24 g of tomato juice, 5 to 8 g of cane sugar and 5 to 8 g of a flavoring agent. The product disclosed by the invention is relatively low in cost, low in protein and high in energy, adopts different fillings to improve the taste, and has a health-care effect aiming at patients with nephropathy.

A method for manufacturing instant noodles to be reconstituted with water. The method includes preparing raw noodle strings each having a thickness of 1.25 mm or less from a raw material powder containing wheat flour and one or more kinds of glutinous starch selected from the group consisting of glutinous potato starch and glutinous tapioca starch. A mass ratio of the wheat flour and the glutinous starch in the raw material powder is from 90:10 to 15:85, and the raw noodle strings contain 0.25 to 10 parts by mass of egg white in terms of dry mass based on 100 parts by mass of the total amount of the wheat flour and the glutinous starch.

The utility model discloses starch separation equipment for potato starch production, and relates to the technical field of starch separation.The starch separation equipment comprises a device bottom frame and an impurity separation mechanism, the impurity separation mechanism is arranged above the device bottom frame, and potato starch slurry is subjected to flowing filtration through a filtering inner net on the side wall of a separation tank; the potato starch slurry is filtered and separated for the first time through the first-stage filter screen, impurities in the potato starch slurry are blocked and separated, the potato starch slurry is filtered and separated for the second time through the second-stage filter screen, the potato starch slurry is filtered and separated for the third time through the outer filter screen, and the impurities with different sizes are sequentially filtered and separated, so that the purity of the potato starch slurry is ensured; the potato starch slurry in the separation tank is subjected to high-frequency vibration through the ultrasonic vibrator, so that the separation between starch particles and impurities is easier, and meanwhile, ultrasonic waves can destroy the cohesive force among the starch particles, improve the filtering and separating speed and prevent the potato starch slurry from blocking the filter screen.

The utility model discloses a self-locking quick-release filter screen structure of a potato starch wastewater filter, which comprises a processing cylinder, a filtering device is arranged in the processing cylinder, a fixing device is arranged in the processing cylinder, and the fixing device comprises a fixing sleeve, a sliding sleeve, a spiral groove, a connecting plate, a spiral block, a clamping mechanism, a fixing rod, a sliding groove, a rotating sleeve and a sliding rod. The spiral groove is formed in the outer side of the sliding sleeve, the multiple spiral blocks are arranged on one side of the connecting plate, the sliding groove is formed in the inner side of the sliding sleeve, the sliding rod is arranged in the sliding groove, and a locking mechanism is arranged on the outer side of the fixing sleeve and comprises a rotating plate, a receding groove, the sliding sleeve, a longitudinal plate, a transverse plate, an inserting rod, an inserting groove and a reset spring. The longitudinal plate is connected to one side of the sliding sleeve, the transverse plate is connected to one side of the longitudinal plate, one end of the insertion rod is connected with the outer wall of the rotating sleeve through the reset spring, and the multiple insertion grooves are formed in the outer side of the fixing sleeve. Compared with traditional equipment, the filter is more stable in structure, more convenient to operate and higher in filter efficiency.

The utility model relates to the technical field of agricultural and sideline product processing, in particular to a sweet potato starch extraction device which comprises a barrel body, a valve and a lifting assembly, a containing cavity with an opening in the top end is formed in the middle of the barrel body, and a filtering assembly used for containing and filtering sweet potato residues in the using state is arranged on the inner side of the containing cavity of the barrel body; the lifting assembly is arranged on the side face of the barrel body and extends towards the middle of the barrel body, and a spinning assembly extending towards the inner side of the filtering assembly is arranged at the top end of the lifting assembly and located above the barrel body; the valve is installed at the bottom end of the barrel body and communicated with the barrel body. The spinning assembly is moved into the filtering assembly through the lifting assembly, sweet potato residues are in full contact with water through forward rotation of the spinning assembly, starch is fully dissolved in the water, meanwhile, the spinning assembly is rotated reversely, the sweet potato residues are moved towards the bottom end of the inner side of the filtering assembly and extruded, and starch in the sweet potato residues is extracted thoroughly; and the starch extraction efficiency is improved.