8results about How to "Avoid plugging" patented technology

The present application relates to waste gas treatment technical field, specifically to a kind of acrylic resin waste gas treatment filter equipment, including main body, the main body inside is equipped with purification cavity, the main body circumferential outer wall is fixedly connected with shunt pipe, the shunt pipe bottom is equipped with several air pipes, the air pipe bottom end is penetrated to the inside of purification cavity;The inside of the purification cavity is provided with purification device, the purification device includes rotation installation in the center position of the inside bottom of purification cavity drive shaft, the inside of the purification cavity is located at the top position of drive shaft and is provided with limit frame, the center position of the limit frame bottom is penetrated and is equipped with docking interface.This application is through gas distribution plate, push plate and filter assembly linkage, to establish gas-liquid mixing neutralization system, improve the neutralization of acidic substances and the absorption efficiency of soluble VOCs, reduce the subsequent pollutant load, push plate, filter assembly and other collaborative impurities, clean filter screen, prevent secondary pollution, prolong the service life of filter material.

This invention discloses a core-shell hydrogenation catalyst and its preparation method. The catalyst comprises a core layer and a shell layer, wherein the core layer is alumina loaded with an active metal component, and the shell layer is alumina loaded with molybdenum carbide. The active metal is at least one of Group VIII metals and at least one of Group VIB metals. The preparation method of the catalyst is as follows: first, boehmite powder is mixed with an organic acid solution and dried before introducing the active metal component. Then, after molding, a spherical core layer material is obtained. Then, under rolling spherical conditions, the obtained spherical core layer material, boehmite powder, molybdenum carbide powder, and an organic alcohol polymer solution are mixed evenly to obtain a catalyst precursor. Finally, the catalyst precursor is dried and calcined to obtain the core-shell hydrogenation catalyst. The hydrogenation catalyst provided by this invention is particularly suitable for the hydrogenation conversion of heavy oil, coal tar, and other oils containing macromolecular aromatics and polycyclic aromatic hydrocarbons.

The invention discloses a high-breathability, cool-feeling and smooth bamboo and linen yarn fabric and application thereof in clothes, belongs to the technical field of textiles, and aims to solve the problems that the breathability is reduced, the hand feeling is hardened and the adhesive force of a coating is weak due to the fact that most of traditional coating modes adopt overall uniform coating, and pores of the fabric are prone to being blocked. The fabric is of a composite structure mainly comprising bamboo fibers and hemp fibers, the ratio of the hemp fibers is smaller than or equal to 10%, the surfaces of the inner side and the outer side of the fabric are each coated with a functional coating, the functional coatings are arranged in a hexagonal or rhombic grid or honeycomb shape, and the inner side portions of the functional coatings are connected with the surfaces of the fabric in a bonding mode. The bamboo fiber and hemp fiber blended structure is adopted, the hexagonal, rhombic or honeycomb discontinuous grid coating is matched, hole blocking of the coating is avoided, the air permeability of the fabric is greatly improved, meanwhile, the cool feeling component rapidly conducts heat, and continuous contact cool feeling is achieved.

The utility model discloses a novel plug -pull structure water cooling joint, including male plug, female joint, locking assembly, sealing element and spring. The male plug outside wall symmetry is equipped with a pair of arc groove, and the female joint is equipped with the cavity, and the male plug inserts the cavity and is connected with the female joint. Locking assembly symmetry is equipped with female joint radial outside wall, including the head, and the head inserts the cavity and is inserted into the arc groove, realizes the locking of male plug. Sealing element is located female joint inboard wall, is used for the sealing when male plug inserts. Spring is located sealing element away from male plug's one side, is used for the butt of male plug and in the pulling out time auxiliary release head. The cooperation of locking assembly and spring has realized the quick plug -pull of water cooling joint and the steady connection, and sealing element has guaranteed the sealing performance of joint, and the operation is simple, and the reliability is high.

The utility model relates to the technical field of pipeline construction, in particular to a drainage device for water supply and drainage pipeline construction, which comprises a bearing bottom plate, a drainage mechanism is fixedly mounted at the top end of the bearing bottom plate, a filtering mechanism is arranged in the drainage mechanism, a protective enclosure frame is fixedly welded at the top end of the bearing bottom plate, and the protective enclosure frame is in an open type design. Reserved pipe holes are formed in the two sides of the water drainage mechanism, the water drainage mechanism comprises a water pump, a water inlet pipe and a water outlet pipe, the water inlet pipe and the water outlet pipe are connected to a water inlet and a water outlet in the two sides of the water pump respectively, the filtering mechanism comprises a T-shaped connecting pipe and a beveled filter cartridge, and the beveled filter cartridge is fixedly installed in the T-shaped connecting pipe. And the top inclined surface faces the water inlet direction. When water flows through the interior of the T-shaped connecting pipe, due to the fact that the beveled filter cartridge is fixedly installed in the water flow channel in the T-shaped connecting pipe, and the inclined face of the beveled filter cartridge faces the water incoming direction, impurities such as sand and gravel in the water flow are filtered through the beveled filter cartridge.

The present application relates to dam technical field, specifically disclose a kind of dam structure with biological purification structure, including treatment pond and platform being set on it, the drainage opening of the treatment pond is arc notch, and the radian angle of arc notch is 90 °, dam body assembly is arranged in the arc notch on the treatment pond, and dam body assembly is equally angularly distributed with mounting cavity, the inside of each mounting cavity is provided with sliding groove, and the corresponding slider is slidably connected on sliding groove, the slider is installed on filter frame, and filter frame is provided with filter screen fence, driving mechanism for driving dam body assembly rotation is installed on the treatment pond.The application can replace filter frame in the process of filtering wastewater, avoid the suspension of filtration caused by closing water valve, thereby help to improve the filtering efficiency, in addition, polypropylene suspended biological ball filled in filter frame will rub and collide with each other along with its rotation, thereby can scatter silt, prevent hardening and block hole.

The utility model belongs to photovoltaic solder strip tin plating technical field relates to a kind of round solder strip tin plating device.The device includes rack, and mould adjusting device and high-frequency vibration device are arranged on the rack, and high-frequency vibration device includes vibration terminal, and vibration terminal is located below tin control mould, and vibration terminal is in contact with round copper wire, and vibration terminal is vibrated to round copper wire, and round copper wire is successively coated and shaped by the line pressing wheel, vibration terminal, tin control mould, air cooling device, and forms round solder strip.High-frequency vibration device is used, and high-frequency vibration changes the surface tension of copper line surface tin liquid, accelerates the flow of tin liquid in the circumferential direction of copper line, so that it is more evenly distributed on the surface of copper line before solidification, and the concentricity of cooled round solder strip is better, and the surface is more smooth.

This invention discloses an aqueous dispersant for water-based digital glaze ink and its preparation method. The raw material components of the aqueous dispersant, by weight, include: 35-40 parts of acrylic monomers, 25-35 parts of amide monomers, 30-35 parts of isoborneol methacrylate, 1-3 parts of initiator, 100-300 parts of an alcohol-water mixed solvent, and 0.5-1.5 parts of triethanolamine. This aqueous dispersant is copolymerized from the above ternary monomers. Specifically: the carboxyl groups of the acrylic monomers have a strong anchoring effect on the water-based digital glaze particles, accelerating grinding efficiency through electrostatic adsorption and chelation effects; the amide groups of the amide monomers form dense hydrogen bonds with water molecules, improving the compatibility of the dispersant in the aqueous system and avoiding uneven dispersion caused by hydrophobic stratification; the rigid isoborneol side chains of the isoborneol methacrylate form steric hindrance, effectively preventing particle collision and aggregation, thereby significantly improving the storage stability of the glaze.