68results about How to "Churn will not" patented technology

The invention discloses an adsorbing material prepared from waste straws and capable of adsorbing trivalent arsenic from water as well as a preparation method and an application thereof, and belongs to the field of synthesis and application of environment functional materials. The adsorbing material is prepared by using the waste straws as matrixes through one-step quaternary ammoniated reaction. The preparation method is simple and the sources of the raw materials are wide; the prepared adsorbing material is capable of effectively adsorbing and removing the trivalent arsenic out of water; after adsorption, the trivalent arsenic in the adsorbing material can be desorbed by using a sodium chloride or sodium hydroxide solution; and the adsorbing material regenerated after desorption has stable arsenic adsorption property. The adsorbing material prepared by the method is an effective way of the resource utilization of the waste straws in farmlands.

The invention is concerned with a secondary fermentation method of tea. It takes Yunnan-Dayecha or the camellia related genera plant with large lamina as material to produce Pu'er crude tea, i.e. green tea, through beating, rolling and drying. Repeat the wet, ferment and dry process for some times, and age to get Pu'er ripe tea. Or it takes un-fermentation tea or half fermentation tea as material, through repeating the wet, ferment and dry process for some times, and age to get secondary fermentation tea. During the machining process, the tea does not go moldy and emanates the faint scent smell, and the color is carmine after deep dunking close to the liquor color of Pu'er crude tea stored for long time, and the smell is aromatic and natural, and the flavor is rich and tasty taste. The operation is easy and fits for industry produce in large without losing the nutritional substance.

The invention discloses a novel agricultural compound fertilizer, and relates to compound fertilizer for agriculture, wherein the novel agricultural compound fertilizer has good synergism and high nutrient utilization rate and reduces the loss rate. The novel agricultural compound fertilizer disclosed by the invention is high-concentration compound fertilizer and is characterized in that polyaspartic acid and polyacrylamide are added into the compound fertilizer, wherein 5kg of polyaspartic acid and 5kg of polyacrylamide are added to each ton of the compound fertilizer; and then the materials are uniformly mixed to obtain the novel agricultural compound fertilizer. For the novel compound fertilizer disclosed by the invention, the compound fertilizer of the national standard is improved according to the plants and soil, the fertilizer loss can be effectively reduced, the trace element absorption of the crop can be promoted, the crop matures 7-10 days earlier, the harvest time is prolonged for 10-15 days, the root growth is promoted, the stress resistance of the crop is enhanced, and the nutrient utilization rate is improved so that the crop can grow better and all needs can be met.

The invention relates to sterilization and mould prevention water-based emulsion paint. The sterilization and mould prevention water-based emulsion paint is prepared from water, cellulose, a pH adjusting agent, a wetting agent, a dispersing agent, ground calcium carbonate, precipitated barium sulphate, sterilization and mould prevention active group introduced modified pure acrylic emulsion, a coalescing agent, a thickening agent and an antifreezing agent. The defects that a sterilization and mould prevention reagent needs to be additionally added to existing emulsion paint to prolong the storage period of the paint, hazardous substances of the sterilization and mould prevention reagent are prone to volatilize to harm the health of the human body, and the effective period of sterilization and mould prevention is short are overcome, and the advantages that the volatile sterilization and mould prevention reagent does not need to be additionally added, the sterilization and mould prevention effect is lasting, storage is stable, and the preparation method is simple are achieved.

The invention belongs to the technical field of waterproof materials and specifically discloses a slow expansion type building water-stop glue and a preparation method thereof. The main technical scheme is as follows: drawing hydrophilic polyether diol, hydrophilic polyether glycol, polyoxypropylene glycol, polyoxypropylene triol and a prepolymer plasticizer into a reaction kettle, stirring, heating, performing reaction and dehydration under vacuum conditions, and then adding toluene diisocyanate and diphenylmethane-4, 4'-diisocyanate for reaction to obtain a hydrophilic polyurethane prepolymer; and then sequentially adding the hydrophilic polyurethane prepolymer, ethyl acetoacetate or acetylacetone, a coupling agent, kaolin, nano-modified calcium carbonate, a water-stop glue catalyst and glass microbeads into a stirring tank for stirring reaction to obtain the slow expansion type building water-stop glue. The water-stop glue has the characteristics of high expansion rate in using process, no loss of expansion factor and high retention rate of the expansion rate after repeated expansion.

The invention belongs to the field of fresh keeping of foods, and particularly relates to a freezing method of Luchuan pork. The freezing method comprises the following steps of (1) preparing a film coating agent; (2) performing micro-freezing treatment on pork; (3) performing film coating packaging treatment on the micro-frozen pork; and (4) performing ultrasonic assisted freezing preservation on the packaged pork: conveying the packaged pork into a freezing room, performing freezing until the temperature of the central layer of the pork is reduced to 2-4 DEG C, performing ultrasonic-assisted freezing for 3-6h, when the temperature of the central layer of the pork is reduced to minus 6 to minus 8 DEG C, stopping performing ultrasonic-assisted freezing, and continuing freezing the pork to minus 18 to minus 23 DEG C so as to obtain the frozen pork. The freezing method disclosed by the invention is simple to operate and stable in technology conditions, ice crystals generated during freezing of the pork can be reduced, the pork freezing speed can also be increased, the preservative effect is achieved, bacteria are restrained, the freezing storage time of the pork can be prolonged, the cell activity of frozen fresh meat can be guaranteed, and the phenomenon that juice flows outwards after the frozen pork is unfrozen is reduced.

The invention discloses a tea leaf drying oven. The tea leaf drying oven comprises an oven allowing tea leaf drying nets to be placed, wherein a chamber of the oven is connected with a heat source; one side surface of the oven is opened, and a curtain baffle is arranged at the opening; supporting brackets for supporting the tea leaf drying nets are arranged in the oven; space allowing the tea leafdrying nets to be inserted is formed between the supporting brackets and the bottom of the oven; and a lifting mechanism is driven by a driving unit to drive the tea leaf drying net arranged at the bottom of the oven to move upwards. According to the tea leaf drying oven disclosed by the invention, the curtain baffle is arranged, so that the opening of the oven is covered, and the situation thatheat quantity runs off is avoided; the tea leaf drying nets are inserted between the supporting brackets and the bottom of the oven, and are continuously overlapped and lifted to a top layer of the oven in a progression manner; in the overlapping process, the pulling-down length of the curtain baffle is adjusted, so that the lower edge of the curtain baffle is always level with the upper edge of the tea leaf drying net on the upmost layer, and the heat quantity is guaranteed not to run off always; and after the tea leaves are dried, the tea leaf drying nets are drawn from the top to the bottomof the oven layer by layer, so that the tea leaf drying oven is convenient and swift, and the drying quality of the tea leaves is guaranteed.

The invention discloses a flowerpot with a branch binding function, and relates to the technical field of flower planting pots. The flowerpot comprises a pot body of a round structure and a pot bottom of a round structure, a dovetail groove is embedded into the outer wall of the pot body, and a branch binding structure is arranged in the dovetail groove, and comprises a supporting plate and a branch binding rod. The dovetail groove corresponds to the supporting plate, the supporting plate can do vertical reciprocating motion in the dovetail groove, an inner groove is formed in the side wall, facing the pot body, of the supporting plate, and the branch binding rod is vertically arranged in the inner groove. A first rotary shaft is horizontally arranged at the bottom of the inner groove, the two ends of the first rotary shaft penetrate through the bottom of the branch binding rod to be fixedly connected with the inner wall of the inner groove, and the branch binding rod can rotate to the horizontal position around the first rotary shaft. The branch binding structure is arranged on the outer wall of the pot body and used for enabling flower branches to grow healthily and facilitating flower shaping.

The invention relates to the field of composite fertilizers, and concretely relates to a long-acting sustained-release composite fertilizer rich in organic materials. The fertilizer is prepared from the following raw materials in parts by weight: 10-15 parts of 1250-2000 mesh diatomite, 12-15 parts of ammonium humate, 8-10 parts of triple superphosphate, 5-6 parts of pumace, 6-8 parts of bean dregs, 4-5 parts of grass meal, 5-7 parts of lees vinegar, 1-2 parts of white sugar, 0.5-1 part of xylose, 18-20 parts of urea, 5-6 parts of borax, 8-10 parts of sodium carboxymethylcellulose, 6-8 parts of redispersible latex powder, 2-3 parts of ammonium ferric citrate, 8-10 parts of ammonium dihydrogen phosphate, 0.1-0.2 part of calcium stearate and 4-5 parts of an auxiliary agent. The raw materials of the composite fertilizer are rich in multiple organic materials, so that the soil activity is effectively improved, and the adverse influence of long-term fertilization on soil is improved; dual cladding on nutrient is formed by utilizing diatomite and a sustained-release coating agent in the production technology, so that nutrient is not easy to loss, the utilization rate is greatly improved; and release of nutrient is long-acting and efficient, and sufficient nutrient and balanced soil environment help to improve both crop output and quality, and the plantation benefit is increased.

The invention relates to a catalyst, and belongs to the technical field of applications and development of acetone downstream products, wherein cobalt and zinc are used as main active components, lanthanum and / or cerium are used as auxiliary agent components, aluminum oxide, silicon oxide or an aluminum oxide-silicon oxide composite carrier with rich pH value is selected to promote a reaction, thecatalyst is used under a mild reaction condition, an acetone one-step production process is used, and the yield of methyl isobutyl ketone in the application of the catalyst of the present invention is higher than the yield of methyl isobutyl ketone in the application of the palladium / resin catalyst used in the current industrial apparatus, and isopropanol and high added value diisobutyl ketone are co-produced. According to the present invention, the obtained catalyst has the ideal stability, has the cost significantly lower than the cost of the existing palladium catalyst, and has good economic benefits.

The invention relates to a catalyst, and belongs to the technical field of applications and development of acetone downstream products, wherein cobalt and tin are used as main active components, fluorine is used as an auxiliary agent component, aluminum oxide, silicon oxide or an aluminum oxide-silicon oxide composite carrier with rich pH value is selected to promote a reaction, the catalyst is used under a mild reaction condition, an one-step acetone synthesis process is used, the yield of methyl isobutyl ketone in the application of the catalyst of the present invention is higher than the yield of methyl isobutyl ketone in the application of the palladium / resin catalyst used in the current industrial apparatus, and a large amount of isopropanol are by-produced. According to the present invention, the obtained catalyst has the ideal stability, has the cost significantly lower than the cost of the existing palladium catalyst, and has good economic benefits.

The invention discloses a liquid seal device of a tower tray of a bubble-cap tower. The tower tray and the liquid seal device are arranged in a tower body of the bubble-cap tower; the liquid seal device comprises a supporting structure and a liquid seal structure; the supporting structure is connected with the tower body seamlessly and fixedly; the tower tray is arranged on the supporting structure; the liquid seal structure is arranged on the tower tray; and the liquid seal structure is provided with a liquid seal chamber for avoiding loss of gas and liquid. The tower tray and the tower body are separated and the liquid seal device is provided, so the liquid and the gas can be prevented from losing from the welded joint of the tower tray and the tower body, the gas and the liquid walk the dedicated channel, contact of the liquid and the gas is effectively enlarged, and the working actual effect of the tower is improved.

The invention relates to the field of fertilizers, and in particular to a special chemical fertilizer for grapes, which is prepared from the following components in parts by weight: 20 to 25 parts of straw, 10 to 20 parts of sawdust, 10 to 12 parts of expanded perlite powder, 1 to 2 parts of nitrification inhibitor DMPP (3,4-dimethylpyrazole phosphate), 0.3 to 0.5 parts of tea saponin, 20 to 26 parts of cow dung, 25 to 30 parts of chicken feces, 20 to 25 parts of soybean meal, 20 to 25 parts of distillers' grains, 20 to 30 parts of canal mud, 15 to 20 parts of urea, 8 to 12 parts of ammonium bicarbonate, 8 to 12 parts of potassium sulfate, 2 to 5 parts of plant ash, 2 to 4 parts of calcium chloride, 0.1 to 0.3 parts of dibutyltin, 0.05 to 0.1 part of myricetin and 0.5 to 0.15 part of luteolin. The special chemical fertilizer for grapes is prepared by mixing a variety of components, the mixed special compound fertilizer for grapes is rich in a variety of nutritional components suitable for the growth of grapes, is favorable for the growth of grapes, and can increase the quality of grapes, the material sources of the special compound fertilizer for grapes are wide, the production cost is lower, and thereby mass production, application and sale are benefited.

The invention provides an application and manufacturing method and system for satellite digital service rechargeable cards. The method includes the steps that a card application client-side makes a rechargeable card application request and inputs application information; an approval client-side judges whether the application information meets approval requirements; on the condition that the approval requirements are met, a secrete key input device inputs a secrete key, an application server distributes a rechargeable card number according to the application information and generates a password according to the secrete key, the card number and the password are matched, and then a secrete key seed file and an encrypted file are obtained; a card making client-side decodes the secrete key seed file and the encrypted file to obtain the decoded card number and the decoded password; a card making device makes a rechargeable card according to the decoded card number and the decoded password. Users can directly buy the rechargeable cards and obtain authorization through telephones or networks at home promptly and quickly, so the application and manufacturing method and system for the satellite digital service rechargeable cards are capable of meeting market requirements, and solve the problem that user authorization must be carried out at business halls very inconveniently in the technical field of satellite digital services.

The invention relates to a catalyst, and belongs to the technical field of applications and development of acetone downstream products, wherein copper, an alkaline earth metal, cerium and chromium areused as loading components, aluminum oxide, silicon oxide or an aluminum oxide-silicon oxide composite carrier with rich pH value is selected to promote a reaction, the catalyst is used under a mildreaction condition, the yield of 4-methyl-2-pentanone in the application of the catalyst of the present invention is higher than the yield of 4-methyl-2-pentanone in the application of the palladium / resin catalyst used in the current industrial apparatus, and 4-methyl-2-pentanol is economically by-produced. According to the present invention, the obtained catalyst has the ideal stability, has thecost significantly lower than the cost of the existing palladium catalyst, and has good economic benefits.

The invention relates to a method for preventing and controlling soil erosion and constructing small reservoir without seepage, which includes a ditch earth running off preventing and controlling method, a top soil running off preventing and controlling method, a bank earth running off preventing and controlling method and a method for constructing small reservoir without seepage. The ditch earth running off preventing and controlling method constructs a plurality of dams at the soil erosion source and the place with serious cave-in collapse running off water and soil, heightens and widens the interception dams proportionally, water channels are opened at both sides of the bam body; the top soil running off preventing and controlling method is a method using wires to plant a preventing and controlling strap; the bank earth running off preventing and controlling method compactly plants various willows; and the method for constructing small reservoir without seepage additionally sets up an outlet gate at the interception bam body, and lay a plastic film at the bottom of the reservoir. The method is easy to carry out, is convenient for spreading; has good soil erosion preventing and controlling effect; genuinely changes water trouble into water conservancy; and solves the puzzling question for several years that the soil erosion is unable to prevent and control.

The invention discloses a three-dimensional planting body which comprises a plurality layers of planting tanks, wherein the planting tanks are overlapped in a planting soil layer at intervals; every two adjacent planting tanks in each layer are arranged at intervals; each planting tank in an upper layer is arranged above the interval between every two corresponding adjacent planting tanks in an adjacent lower layer; the peripheries of the plurality layers of planting tanks are wrapped by curved soil bodies; each planting tank comprises a planting tank main body of which the upper part is opened; an inner sealed water storage tank is arranged inside each planting tank main body; the height of the planting tank main body is not less than that of the inner sealed water storage tank; the space inside each planting tank main body is partitioned into a planting area and a water storage area by the inner sealed water storage tank; a water compensating tube which extends outside each planting tank main body is arranged at the upper part of the inner sealed water storage tank; water seepage channels for communicating the planting areas with the water storage areas are arranged between the planting areas and the water storage areas. The invention further discloses a three-dimensional planting method. By adoption of the three-dimensional planting body and the three-dimensional planting method, the planting rate of a unit area can be greatly increased, the planting area can be saved, the water evaporation and the fertilizer loss can be sufficiently reduced, and the saturated utilization of water and fertilizers can be realized.

The invention relates to a solar battery, and specifically relates to a dual perovskite / copper-indium-gallium-selenium solar battery. The dual perovskite / copper-indium-gallium-selenium solar battery comprises a perovskite layer at an upper layer and a copper-indium-gallium-selenium layer at a lower layer. The perovskite layer comprises an upper transparent conductive layer, a perovskite absorption layer and a lower transparent conductive layer which are successively laminated. The copper-indium-gallium-selenium layer comprises a zinc oxide aluminum-doped conductive layer, a zinc oxide layer, a cadmium sulfide thin film layer, a copper-indium-gallium-selenium absorption layer, a molybdenum conductive layer and a soda-lime glass base layer which are successively laminated. Dual perovskite and copper-indium-gallium-selenium can improve absorption of spectrums, enable photons which are not absorbed when passing through the upper-layer thin film perovskite layer to be continuously absorbed by lower-layer copper-indium-gallium-selenium, and the conversion rate can exceed 30%. The dual perovskite / copper-indium-gallium-selenium solar battery has the function of a high conversion rate and is suitable for batch production.

The invention relates to the field of ores and particularly relates to an ore fertilizer soil manufacture device. The technical problem to be solved by the invention is to provide the ore fertilizer soil manufacture device. The ore fertilizer soil manufacture device comprises a first four-roller grid plate, a fertilizer manufacture device, a potash fertilizer outward leading device, a block cracking device, a second conveying belt and a second four-roller grid plate, wherein the fertilizer manufacture device is disposed on the right side of the middle of the top of a baseplate; and the potashfertilizer outward leading device is disposed on the rear middle right side of the middle of the top of the baseplate. The device provided by the invention has the beneficial effects that ores are fully mixed with soil, plant rooting is promoted, and soil hardening is prevented; the ores on the outer layer of a whole airing box can be heated uniformly, contact architecture among the ores is prevented through ascending and descending of a mushroom plate, and mutual jam of the ores is prevented; and mica blocks are crushed through automatic striking, effects and the speed of crushing are increased, raw material waste is avoided, and personal injury events caused by outward bursting of fragments do not take place.

The invention discloses a special controlled-release fertilizer for sulphur resin coated chestnut and a preparation method thereof. The special controlled-release fertilizer for sulphur resin coated chestnut is prepared with 4 percent sulphur resin coated compound fertilizer, 3 percent sulphur resin coated compound fertilizer, 3 percent sulphur resin coated urea, 5 percent sulphur resin coated potassium sulphate compound fertilizer, etc. The special controlled-release fertilizer for sulphur resin coated chestnut is applied in one go before the budding in spring, thereby reducing the harm of fertilizations to chestnut roots. The special controlled-release fertilizer for sulphur resin coated chestnut can meet the demand for nitrogen, phosphor, and potassium by chestnut in the annual growth period, thereby increasing the production effectively.

The invention relates to the field of composite fertilizers, and concretely relates to a long-acting sustained-release composite fertilizer rich in organic materials. The fertilizer is prepared from the following raw materials in parts by weight: 10-15 parts of 1250-2000 mesh diatomite, 12-15 parts of ammonium humate, 8-10 parts of triple superphosphate, 5-6 parts of pumace, 6-8 parts of bean dregs, 4-5 parts of grass meal, 5-7 parts of lees vinegar, 1-2 parts of white sugar, 0.5-1 part of xylose, 18-20 parts of urea, 5-6 parts of borax, 8-10 parts of sodium carboxymethylcellulose, 6-8 parts of redispersible latex powder, 2-3 parts of ammonium ferric citrate, 8-10 parts of ammonium dihydrogen phosphate, 0.1-0.2 part of calcium stearate and 4-5 parts of an auxiliary agent. The raw materials of the composite fertilizer are rich in multiple organic materials, so that the soil activity is effectively improved, and the adverse influence of long-term fertilization on soil is improved; dual cladding on nutrient is formed by utilizing diatomite and a sustained-release coating agent in the production technology, so that nutrient is not easy to loss, the utilization rate is greatly improved; and release of nutrient is long-acting and efficient, and sufficient nutrient and balanced soil environment help to improve both crop output and quality, and the plantation benefit is increased.

The invention relates to the technical field of flour manufacturing equipment, in particular to vibrating wheat cold-milling equipment. The vibrating wheat cold-milling equipment utilizes the gravityof a grinding roller, the vibration force of a vibrating mechanism and the relative rolling pressure and shearing force between the grinding roller and a grinding disc to roll and crush materials. Since the grinding roller has large gravity, the requirements on the rolling pressure and shearing force in the wheat milling process can be fully met without increasing the relative rotational speed between the grinding roller and the grinding disc, so that the grinding roller can be run at a low speed. The normal temperature is always kept during the rolling process, so that the problem that material components are destroyed and lost during high-temperature processing, and the quality of wheat milling can be improved. In addition, since the grinding roller is used for rolling milling, the wearrate of the grinding roller and the grinding disc is almost zero, so that other substances enter wheat flour, and the purity and quality of the flour are guaranteed to a great extent.

The invention relates to a paddy field water-level drainage and irrigation control device. The paddy field water-level drainage and irrigation control device comprises a gate sleeve, wherein a slide slot is formed in the gate sleeve; a gate plate is arranged in the slide slot; the two sides of the gate sleeve are separately provided with water tubes; a lifting rod is arranged on the gate plate; a threaded section is arranged on the lifting rod; the threaded section is in screw-thread fit with a hand wheel with a screw hole in middle; the hand wheel is used for controlling the gate plate to lift and drop; and the upper end or the lower end of the hand wheel is further provided with a locking nut which is in screw-thread fit with the threaded section of the lifting rod. The paddy field water-level drainage and irrigation control device is relatively simple in structure, is convenient to operate, can be directly embedded into a ridge, can be used on a soil ridge and a cement ridge, is relatively small in size, does not damage the soil ridge, and further can solve the soil erosion problem in a water irrigation and drainage process.

The invention belongs to the technical field of agriculture, and discloses a grape specialized fertilizer. The grape specialized fertilizer is composed of following raw materials, by weight, 90 to 100 parts of cow dung, 45 to 50 parts of chicken manure, 20 to 25 parts of soybean meal, 20 to 25 parts of vinasse, 20 to 30 parts of river mud, 15 to 20 parts of urea, 8 to 12 parts of ammonium bicarbonate, 8 to 10 parts of potassium sulfate, 2 to 5 parts of plant ash, 2 to 4 parts of calcium chloride, 2 to 4 parts of calcium chloride, 0.1 to 0.3 part of dibutyl tin , 0.05 to 0.1 part of myricetin, and 0.1 part of digicitrine. The grape specialized fertilizer is prepared via mixing of a plurality of ingredients, is rich in a plurality of nutrients suitable for grape growth, is beneficial for grape growth, and is capable of improving grape yield and quality; raw material resource of the grape specialized fertilizer is wide; production cost is relatively low; and it is beneficial for enterprise large scale production, application, and selling.

The invention discloses environment-friendly food drying equipment. The environment-friendly food drying equipment comprises a box, a vacuum pump, a condensation chamber and a liquid collection tank;a motor is mounted at the middle of the interior of the liquid collection tank; the box is mounted at the top of the liquid collection tank; a rotating shaft is mounted at the top of the motor; the top of the rotating shaft vertically penetrates through the bottom of the box, and extends to the top of the interior of the box; material-placing plates are evenly mounted on the rotating shaft insidethe box; two ends of the material-placing plates are both connected with inner walls of the box via buckles; ultraviolet irradiation lamps are mounted on the inner walls of the box between the material-placing plates; hooks are mounted at the bottoms of the material-placing plates; heating wires are arranged inside the material-placing plates; a door is mounted at one end of the box; and a controlcabinet is mounted at the middle of the door. By mounting the vacuum pump, the interior of the box can be in a vacuum state, so that, foods can be dried at a relatively low temperature; and thus, energy consumption is greatly reduced.

The invention provides anti-bioerosion wear-resistant recycled aggregate pervious concrete and a preparation method thereof, and the pervious concrete comprises the following components in parts by weight: 1350 parts of recycled aggregate, 285-360 parts of cement, 25-45 parts of superfine slag powder, 25-45 parts of copper tailing slag, 90-125 parts of water, 0.16-0.22 part of a water reducing agent, 12-25 parts of redispersible latex powder, 0.15-0.25 part of cellulose ether, 0.5-4 parts of magnesium fluosilicate, 1-5 parts of sodium silicate and 0.5-3 parts of copper sulfate. Compared with common pervious concrete, the concrete has more excellent wear resistance by adding the copper tailing slag and utilizing the wear resistance of the slag, and in a humid environment, growth of moss in an outdoor semi-shady humid environment can be effectively inhibited by virtue of a copper ion slow release effect of copper sulfate in cement slurry with strong alkalinity and a compact structure; and the concrete has a certain sterilizing effect, can reduce underground water pollution, is good in working performance, low in cost and environment-friendly, saves resources, and has a good application prospect.

The invention relates to the technical field of flour manufacturing equipment, in particular to wheat cold milling equipment. The wheat cold milling equipment utilizes the gravity of a milling rollerand the relative shearing force between the milling roller and a milling pan to crush material into flour, and since the milling roller has relatively large gravity, the requirements on the rolling pressure and shearing force in the wheat milling process can be fully met without increasing the relative rotational speed between the milling roller and the milling pan, and the milling roller can runat a low speed and is always maintained at normal temperature during the rolling process, so that the problem that the material components are destroyed and lost during high-temperature processing issolved, and the quality of wheat flour can be improved. In addition, with rolling milling of the milling roller, the wear rate of the milling roller and the milling pan is almost zero, and no other substances enter wheat flour, thereby guaranteeing the purity and quality of flour to a great extent.