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84results about How to "Smooth removal" patented technology

Water-based high-adhesion diving joint priming paint as well as preparation method and application thereof

The invention relates to water-based high-adhesion diving joint priming paint, as well as a preparation method and application thereof. The priming paint comprises the following components in percentage by mass: 38.0-43.2% of epoxy-modified sealing emulsion, 0.26-0.3% of hydroxyethyl cellulose, 0.13-0.20% of AMP-95, 8.0-9.0% of an inorganic pigment, 18.7-27.2% of a filler, 0.13-0.20% of a wetting dispersant, 0.1-0.3% of a polyether-modified flatting agent, 0.2-0.4% of an antifoaming agent, 0.1-0.22% of a bactericide, 0.15-0.80% of a thickening agent, 1.5-3.4% of a coalescing agent, 1.5-8.0% of an anti-freezing agent and 15.69-27.28% of water, wherein the pH value of the water-based high-adhesion diving joint priming paint is 8.0-9.5. The water-based high-adhesion diving joint priming paint disclosed by the invention is low in content of VOC (volatile organic compounds), does not contain any substance causing harm to the human body and the environment and has excellent permeability; the priming paint product can be effectively adhered by textured paper, and when the priming paint does not need to be protected after construction completion, the textured paper can be smoothly removed. The water resistance, alkali resistance, alkali burnout resistance and salting-out resistance of the water-based high-adhesion diving joint priming paint products disclosed by the invention can meet standard technical requirements in the industry of priming paint for building external walls.
Owner:上海三银涂料科技股份有限公司

Sewage treatment device and method for self-cleaning type micro-aeration vertical baffled wetland

The invention belongs to the technical field of sewage treatment, and particularly relates to a sewage treatment device and a sewage treatment method for a self-cleaning type micro-aeration vertical baffled wetland. The invention discloses the sewage treatment device for the self-cleaning type micro-aeration vertical baffled wetland. The sewage treatment device consists of a water distribution region, a tank body and a water collecting region; to-be-treated sewage flows into the water distribution region through a water inlet tube, and then flows from the distribution region into the tank body by taking an overflow; outlet water treated by the tank body flows into the water collecting region by taking an overflow; and the tank body is formed by connecting a plurality of stages of vertical baffled wetlands with different treatment functions in series, in a water flow direction, namely an anaerobic wetland, a carbon oxidization wetland and a short-cut nitrification-denitrification wetland. The invention further provides a sewage treatment method by adopting the device. According to the device provided by the invention, the tank body is divided into an anaerobic section, an aerobic section and a micro-aerobic section in the water flow direction, and efficient removal of carbon pollutants and nitrogen pollutants can be realized; and the problems that a conventional constructed wetland is too low in dissolved oxygen, relatively great in land area, easy to block by stuffing and difficult to clean after being blocked are solved.
Owner:CHONGQING UNIV

Low-temperature preparation method of rice-hull-based porous silicon material

The invention discloses a low-temperature preparation method of a rice-hull-based porous silicon material and belongs to the technical field of nanoelectrode material preparation. The method comprises the steps that first, washed and dried rice hulls are heated and oxidized in air to obtain rice hull ash, then the rich hull ash is soaked with diluted hydrochloric acid, washed with distilled water and dried, and the dried rich hull ash is obtained; the dried rich hull ash, aluminum powder or a mixture of aluminum powder and magnesium powder and a chloride mixture are mixed and then subjected to a sealed heating reaction, the temperature is kept till the reaction is over, then the mixture is cooled to room temperature, the product obtained after the reaction is collected, soaked with diluted hydrochloric acid and washed with distilled water, and the rice-hull-based porous silicon material is obtained. The method has the advantages that the process is simple, the raw materials are low in price, the reaction process has a low requirement for temperature, and the yield is high; the prepared rice-hull-based porous silicon material has excellent electrochemical performance and can be used as a lithium ion battery cathode material, thereby providing a new way for high-value-added utilization of the rice hulls.
Owner:YANGZHOU UNIV

Beverage brewing equipment allowing beverage bag to be removed easily

The invention relates to beverage brewing equipment allowing a beverage bag to be removed easily. The beverage brewing equipment comprises a machine base, a first machine part, a second machine part and a holding mechanism used for receiving and holding the beverage bag after the beverage bag is inserted between the first machine part and the second machine part. The beverage brewing equipment is characterized by further comprising a bag scraping plate and an elastic structure; the bag scraping plate can be constrained inside the machine base and can slide in the vertical direction, the bag scraping plate is provided with a blocking part which extends backwards to the upper portion of the rear of the rear end face of the first machine part, and spacing allowing the annular edge of the beverage bag to be placed is formed between the blocking part and the rear end face of the first machine part; the elastic structure acts on the bag scraping plate so that the bag scraping plate can maintain a downward moving trend. According to the beverage brewing equipment, the beverage bag is removed mainly through the action of the bag scraping plate, the number of related components is small, and the structure is simple; in the process of removing the beverage bag, the bag scraping plate moves downwards and will push the annular edge, so that downward pushing force is produced on the beverage bag; in other words, the falling force of the beverage bag not only comprises the gravity of the beverage bag but also comprises the elasticity of the elastic structure, and therefore it is further ensured that the beverage bag is removed smoothly.
Owner:NINGBO AAA GROUP ELECTRIC APPLIANCE

Multi-purpose slightly-ground oat kernels and production method thereof

The invention provides multi-purpose slightly-ground oat kernels and a production method thereof. The production method comprises the following steps of removing lignified outer coats of oat kernels,passivating the activity of lipase and the activity of peroxidase through performing oat steaming twice and performing oat baking treatment once, performing high-temperature heat-moisture treatment sothat starch is 100% gelatinized, and then performing slight grinding so as to obtain granules of which the thickness is 1.0-1.8mm. According to the processing method of the multi-purpose slightly-ground oat kernels, the lignified outer coats of oat are removed through brushing the oat, so that digestion by intestinal tracts is facilitated; the activity of the lipase and the activity of the peroxidase are passivated through performing oat steaming twice and performing oat baking treatment once, so that the storage stability of products is strengthened, and the quality guarantee period is prolonged; besides, the starch can be gelatinized through the high-temperature heat-moisture treatment, so that the steaming time of the products is greatly shortened; and the ageing properties of the products can be improved through the slight grinding, so that the steaming time is further shortened, and besides, the situation that the products have slightly glutinous mouth feel, and chewiness and elasticity is guaranteed. The multi-purpose oat kernels disclosed by the invention not only are suitable for being applied to processing of foods of cooked rice, porridge and soup, or coarse cereal porridge and the like, but also can be matched with foods of milk, beverages and the like.
Owner:JIANGSU UNIV

Shredding device for maize harvesting machine impurity removal draught fan

The invention relates to a shredding device for a maize harvesting machine impurity removal draught fan. The shredding device comprises a discharging opening, a bolt, a nut, a gasket, a fan blade seam, a draught fan shell seam, an axle nut, an axle gasket and a shredding blade. The discharging opening and the fan shell seam are connected through the bolt, the nut and the gasket. The fan blade seam is installed inside the fan shell seam. The fan blade seam is composed of four rotating vanes, four rotating blades and a rotating shaft, the four rotating vanes are uniformly arranged on the rotating shaft in the circumferential direction, the four rotating blades are installed on the four rotating vanes respectively, one end of the rotating shaft penetrates through a lower flange in the fan shell seam to be connected with a motor, the other end of the rotating shaft is provided with the shredding blade, and the shredding blade is fixed through the axle nut and the axle gasket. Due to the fact that maize straw and other impurities are cut through the shredding blade and the rotating blades two times, particles become finer and smaller, the field returning effect is better, the impurity removal draught fan is not likely to be blocked, the number of impurities entering a peeling machine is small, the service life of the peeling machine is prolonged, and economic benefits are created.
Owner:YONGMENG MACHINERY CO LTD

Method and device for removing oxide skin of polycrystalline silicon reduction furnace bell jar through laser

The invention discloses a method and device for removing oxide skin of a polycrystalline silicon reduction furnace bell jar through laser. The method comprises the following steps that S1, the polycrystalline silicon reduction furnace bell jar is hoisted on supporting stand pillars; S2, a laser generator is started, a rotary working disk drives a Z-direction sliding rail to rotate, an X-direction sliding rail slides on the Z-direction sliding rail from bottom to top, and the polycrystalline silicon reduction furnace bell jar is automatically and rotationally scanned from bottom to top through the Z-direction sliding rail, the X-direction sliding rail and the rotary working disk; and S3, laser emitted by a laser emitting head is used for irradiating the inner wall of the polycrystalline silicon reduction furnace bell jar, the oxide skin adhering to the inner wall of the polycrystalline silicon reduction furnace bell jar is removed rapidly and conveniently, and the metal color of the polycrystalline silicon reduction furnace bell jar is restored. The oxide skin of the polycrystalline silicon reduction furnace bell jar can be rapidly and thoroughly removed, and the polycrystalline silicon reduction furnace bell jar is not damaged; the investment recovery is rapid, the cost is low, and no noise is generated; and no chemical agent or decontamination liquid is needed, the removed oxide skin is solid powder and can be recycled, and the environment is not polluted.
Owner:吴起正 +1

Silicon dioxide extraction process based on highland barley husks

The invention discloses a silicon dioxide extraction process based on highland barley husks, and belongs to the technical field of material recovery. During extraction, the process includes washing the highland barley husks with water, and drying and smashing the husks to obtain highland barley husk powder; carrying out hydrothermal carbonization reaction on the highland barley husk powder and a sulfuric acid solution, instantly releasing pressure, discharging, performing filtration, collecting a filter cake, and washing the filter cake with deionized water until a washing solution is neutral;freezing the washed filter cake with liquid nitrogen, grinding the filter cake, and unfreezing to obtain an unfrozen material; pouring the unfrozen material into a saturated ammonium nitrate solution, removing surface floaters, collecting lower-layer precipitates, and performing vacuum freeze drying on the lower-layer precipitates to obtain a refined material; putting the refined material into atubular furnace, slowly heating in an oxygen atmosphere, calcining the material, cooling and discharging to obtain a calcined material; and repeatedly washing the obtained calcined material with water, and carrying out vacuum freeze drying to obtain refined silicon dioxide, thereby completing the silicon dioxide extraction process of the highland barley husks. The silicon dioxide extraction rate is high, and the product has high purity.
Owner:崔建中

Threshing device used for long-stem crop

The invention relates to the field of agricultural machinery, and provides a threshing device used for a long-stem crop. The threshing device comprises a threshing component, a screening component anda material collection component, wherein the threshing component comprises a roller and a shell; the roller can be rotatably arranged in the shell; the excircle surface of the roller is provided witha first threshing device; the inner wall of the shell is provided with a second threshing device cooperated with the first threshing device; the lower side plate of the shell is provided with a material falling hole; the screening component is arranged on a position which is below the threshing component and corresponds to the material falling hole, and is used for filtering impurities in particles; and the material collection component is arranged below the screening component and is used for collecting the particles. By use of the threshing device provided by the invention, the successful removal, impurity removal and collection of the particles of long-stem crops, including Vicia villosa Roth and the like, can be effectively improved, the particle removal difficulty of the long-stem crops, including Vicia villosa Roth and the like, can be lowered, and removal and collection efficiency is improved. The threshing device is suitable for large agricultural machinery and is favorable for developing to a quick, efficient and mechanical direction.
Owner:SHENYANG AGRI UNIV

Device capable of removing soldering tin of partial components on circuit board

The invention discloses a device capable of removing soldering tin of partial components on a circuit board. The device capable of removing the soldering tin of the partial components on the circuit board comprises a shell; a working cavity with an upward opening is formed in the shell; a slide block is arranged on the lower wall of the working cavity in a mobile manner; an advancing cavity is formed in the slide block; a screw rod is slidingly arranged on the left and right wall of the advancing cavity in a communication manner; an annular cavity with an inward opening is formed in the side wall of the working cavity in a surrounded manner; an annular rack is arranged on the lower wall of the annular cavity; a steering wheel is fixedly connected to the right end of the screw rod; the lower end of the steering wheel is engaged with the annular rack; and a switching wheel is connected to the screw rod through threads. According to the device capable of removing the soldering tin of thepartial components on the circuit board, the soldering tin of the components on the circuit board can be selectively removed, and the components can be taken off; when the circuit board is put into the device, the circuit board can be well fixed by a clamping device so as to smoothly remove the soldering tin; during removing the soldering tin, the removing device can move in all directions so as to remove the soldering tin in each position; and moreover, during removing the soldering tin, the soldering tin is removed through vacuum suction so that the device is convenient and fast.
Owner:方德兰
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