224results about How to "Not easy to sink" patented technology

The invention discloses a polypropylene color masterbatch and a preparation method thereof. The polypropylene color masterbatch comprises the following components, by weight, 20-70% of polypropylene, 0.01-70% of a toner, 0-40% of a dispersant, 0.1-10% of a foaming agent, 0-10% of a crosslinking agent, 0-2% of a heat stabilizer, and 0-40% of a filler. The preparation method comprises the following steps: burdening and mixing above components according above proportions, carrying out melt blending with a double screw extruder or an internal mixer, and granulating and drying to prepare the color masterbatch. The shape of the color masterbatch is cylindrical, beaded, square or round tablet-like according to different granulating modes. The polypropylene color masterbatch provided in the invention which can be used in coloring products of polypropylene extrusion, spinning and injection molding has the advantages of excellent dispersibility and color stability.

The invention relates to the nanometer technology and corrosion resistance technology, in particular to a chromium-free nano composite polyurethane aircraft coating and a preparation method thereof. The chromium-free nano composite polyurethane aircraft coating consists of two components. By weight, the first component include 0.2-30 parts of nano pulp, 10-85 parts of synthetic resin, 0-40 parts of tinting pigment, 0.01-5 parts of organic corrosion inhibitor, 5-40 parts of rust-resistant pigment and the like, and is made by dispersing the synthetic resin, the solvent, the nano pulp, auxiliary and the like at high speed, grinding and filtering the same. The second component is formed by dispersing curing agent and the solvent. The two components are mixed uniformly to obtain the coating. By adding the rust-resistant pigment and the organic corrosion inhibitor to prepare the chromium-free nano composite polyurethane aircraft coating, nano powder can be dispersed in the coating stably, corrosion resistance of the coating is improved. Further, the prepared coating is beneficial to environment protection due to the chromium-free rust-resistant pigment.

The invention discloses a full-scale range C-reactive protein latex-enhanced immunoturbidimetry detection kit. Through turbidity change, quantitative determination is realized. The kit comprises a reagent R1 and a reagent R2. The reagent R1 is a phosphate buffer solution. The reagent R2 comprises two conjugates with different particle sizes, and the conjugates comprise a conjugate of carboxylic polystyrene latex and a rat anti-human CRP antibody and a conjugate of carboxylic polystyrene latex and a mouse anti-human CRP antibody. The kit can be combined with a full-automatic specific protein analyzer so that detection sensitivity and accuracy are improved and detection time is shortened. The full-scale range C-reactive protein latex-enhanced immunoturbidimetry detection kit can detect high concentration CRP content and low concentration CRP content and has the advantages of high sensitivity, strong stability, wide linear range, good repeatability and cheap price.

The invention discloses a hexagonal boron nitride epoxy compound anticorrosion coating and a preparation method and application thereof. The anticorrosion coating is mainly composed of hexagonal boron nitride, polyaniline nanofiber, epoxy resin, a disperse medium, a coating additive, an epoxy resin curing agent, a solvent, etc. The hexagonal boron nitride epoxy compound anticorrosion coating provided by the invention has good storage stability, is not easy to sink to the bottom, has simple preparation process, is low-cost, and is suitable for large-scale production. A coating layer formed by the coating has excellent barrier property and lasting corrosion resistance. The product has a good application prospect in the industries of chemical engineering, petroleum, electric power, ship, light textile, storage, transportation, spaceflight, etc.

The invention discloses alcohol-group dry powder sand mould foundry coating, which comprises the following components in percentage by weight: 60-75% of bauxite, 2-10% of amorphous graphite, 3-15% of lamellar graphite, 2-10% of iron oxide red, 1-5% of attapulgite, 0.5-1.5% of sodium bentonite, 1-5% of polyvinyl butyral, 0.1-0.5% of surfactant and 0.1-0.5% of dispersing agent. The dry powder coating has the advantages of simple preparation technology, convenience in use and good high-temperature sand adhesiveness resistance.

The invention discloses a lobster feed capable of enhancing the immunity. The feed is prepared from the following raw materials in parts by weight: 15 to 25 parts of germinated brown rice, 20 to 30 parts of oat bran, 45 to 85 parts of potato powder, 4 to 10 parts of carrot top, 8 to 16 parts of duck oil, 30 to 50 parts of chrysanthemum meal, 5 to 10 parts of peanut meal, 3 to 6 parts of earthworm powder, 8 to 12 parts of sunflower seed meal, 4 to 10 parts of extruded soya bean meal, 3 to 9 parts of meat and bone meal, 6 to 12 parts of defatted fish meal, 6 to 10 parts of concentrated albumen-powder of soybeans, 10 to 20 parts of potato protein powder, 0.06 to 0.12 part of tryptophan, 0.3 to 0.7 part of methionine, 0.5 to 0.7 part of cellulase, 1.5 to 2.5 parts of selenium-enriched yeast, 0.1 to 0.2 part of Bacillus, 0.06 to 0.1 part of monascus, 0.03 to 0.07 part of Schizophyllum commune, 4 to 8 parts of Chinese herbal medicine additive, 3 to 5 parts of corn oil and 3 to 6 parts of modified montmorillonite.

The invention relates to a coal mine underground end mining method, in particular to a soft coal seam long-wall high-mining-height comprehensive mechanized coal mining end mining method, and solves the problem of coal wall collapse brought by end mining under the condition of a working face of a long-wall high-mining-height soft coal seam existing in the prior art. The mining height of the high-mining-height long-wall working face is more than over 3.5 m; a feed-return working face arrangement mode is at least adopted; and after the working face is pushed to an end mining line, a bracket stops to move forwards, then a tunneling machine is arranged at the tail of the working face, and a support dismantling passage is made by using a comprehensive tunneling process to finish end mining. The process has high capacity of adapting to complex geological conditions. The place and time of end mining can be flexibly selected according to the geological conditions and a roof pressure change rule, and the safety coefficient is high.

The invention discloses a printable waterborne polyurethane 3D golden oil or 3D ink. The 3D golden oil or 3D ink mainly includes the following components by mass percentage: waterborne polyurethane with film hardness of 65A-75A, a wetting agent, a slow drying agent, an anti-permeability agent, a leveling agent, a defoaming agent, a coupling agent, a pH regulator, a bactericide, deionized water, a color paste, and a thickening agent, etc. The golden oil or ink can be prepared into a coating on a textile surface directly through printing, the prepared coating has the advantages of strong stereo feel, good glossiness, easy stacking, no subsidence, soft handfeel, low temperature resistance, and good firmness, etc., and solves the problems of ink spreading, no blotting, cracking and other problems in existing printing ink.

The invention provides a pervious straw fiber concrete and a production method thereof. The method comprises the following steps: unwinding plant straws into dispersed straw fibers, carrying out alkali liquor steam curing on the straw fibers and silica micro-powder to form silica micro-powder coated modified straw fibers, and uniformly mixing the silica micro-powder coated modified straw fibers with high-calcium fly ash, fine aggregates, a water reducer and water to obtain the pervious straw fiber concrete. Steam oxygen of gaseous oxidation aggregated silica micro-powder makes the gel coated straw fibers have good dispersibility, permeability and thickening property, and the modified fibers formed by the coated straw fibers have a thickening property, so a formed straw fiber network has good water permeability, the adhesion force between a cement mortar and the fine aggregates and between the cement mortar and the straw fibers is enhanced, and the strength of the concrete is greatly improved; and the method effectively recovers agriculture and forestry straws, and realizes the high-value comprehensive utilization of solid wastes.

The invention discloses a bacillus subtilis strain and applications thereof, and belongs to the technical field of applied biology. The strain is the bacillus subtilis strain QS1 and assigned the accession number CGMCCNO. 17314. A bacillus subtilis preparation is simultaneously disclosed. The preparation includes the bacillus subtilis strain QS1, natural perlite powder and maltodextrin; and a preparation process takes the natural perlite powder as a bacillus subtilis spray carrier, so that aerobic biochemical reaction on the bacillus subtilis in a septic tank can be conveniently performed. Thebacillus subtilis strain QS1 has good decomposition capability for proteins, fibrous substances and oil substances; and the strain can effective remove stink by applying to the septic tank and sewagetreatment, so that the problems of sludge and scum blocking can be effectively prevented, the occurrence of methane and hydrogen sulfide gas can be reduced, and potential safety hazards can be removed.

The invention discloses a dam with pile groups and a permeable frame and a construction method of the dam. The construction method includes: piling vertical dam piles in a to-be-constructed river, arranging a mesh between each two adjacent vertical dam piles so that the vertical dam piles and the meshes form a closed block, casting the permeable frame in the mashes to form a permeable frame unit, and casting other permeable frames into the meshes so that the permeable frame units form the dam with the pile groups and the permeable frames. The dam has the advantages of stability in structure, long engineering life cycle, eco-environment protection, convenience in construction and the like.

The invention discloses cement-based polymer waterproof mortar which is characterized by being prepared from, by weight, 5-10 parts of 3-chloro-2-hydroxy propane sulfonic acid ionized modified hyperbranched polyamino acid, 2-5 parts of a fatty acid-based addition polymer, 0.5-2.5 parts of calcium borogluconate, 1-3 parts of nano alumina sol, 10-15 parts of pelelith powder, 100 parts of Portland cement, 3-7 parts of palygorskite powder, 3-5 parts of glass fiber powder, 3-8 parts of industrial solid waste powder, 20-30 parts of a styrene-acrylic emulsion, 1-3 parts of sodium laureth sulfate modified crosslinked super absorbent resin, 80-120 parts of fine sand and 80-100 parts of water. The invention also discloses a preparation method of the cement-based polymer waterproof mortar. The cement-based polymer waterproof mortar has the advantages of good impermeability, low water absorption rate, high bending strength and bonding strength, convenient construction, aging resistance and remarkable waterproof performance.

The invention discloses a feed for enhancing the immunity of lobsters. The feed is prepared from the following raw materials in parts by weight: 40-80 parts of corns, 15-25 parts of oat bran, 10-20 parts of radish leaves, 2-10 parts of fish oil, 2-8 parts of waxgourd peel, 5-15 parts of soybean protein, 1-8 parts of puffed meat and bone meal, 2-6 parts of potato protein powder, 2-6 parts of earthworm powder, 20-40 parts of sunflower seed meal, 2-8 parts of yeast protein powder, 1-4 parts of yellow mealworm, 1-6 parts of peanut meal, 5-10 parts of rice bran meal, 1-4 parts of modified montmorillonoid, 12 parts of corn oil, 1-2 parts of selenium-enriched yeast, 0.1-0.4 part of phytase, 0.01-0.06 part of Schizophyllum commune, 0.04-0.08 part of Armillaria mellea, 0.02-0.05 part of monascus, 0.04-0.08 part of lysine, 0.1-0.4 part of methionine and 1-4 parts of a Chinese herbal medicine additive.

The invention discloses aluminum oxide-containing polyaniline zinc powder flake epoxy heavy anti-corrosion coating and a preparation method thereof. The coating comprises a component A and a component B, wherein the component A comprises the following components in parts by mass: 35-85 parts of epoxy resin, 0.5-25 parts of polyaniline zinc powder flake, 0.1-10 parts of aluminum oxide, 0.1-5 parts of pigment, 1-15 parts of packing, 0.01-2 parts of anti-sag agent, 0.01-0.5 part of dispersant, 0.01-2 parts of flatting agent, 0.01-0.5 part of deforming agent and 5-40 parts of mixed solvent; and the component B comprises the following components in parts by mass: 40-90 parts of amine curing agent and 10-60 parts of solvent; and the coating is prepared by mixing and stirring the component A and the component B for 1-5 minutes according to a mass ratio being 1: (0.1-1):1. The corrosion resistance, seawater erosion and abrasion resistance, ageing resistance and anti-penetrating property of the coating system are obviously improved; and the coating can be applied to heavy anti-corrosion engineering in fields of petrochemical equipment, pipelines, offshore oil platforms, berthing facilities, ships and the like.

The invention discloses a tracked steamship/vehicle for rescuing on an ice surface and a wet land, belonging to rescue equipment. The tracked steamship/vehicle comprises a hull, a cabin, watertight bulkheads, a water-resisting enclosure, track wheels, a pendulum shaft, a damping shock absorber, a rescue suspension arm and a buckling claw. The tracked steamship/vehicle is characterized in that the tracked wheels connected and fixed together with the pendulum shaft of which the middle is longitudinally fixed and two horizontal ends swing vertically are arranged below two sides of the hull; and the periphery and the bottom of the hull are provided with the watertight bulkheads of which the total buoyancy is larger than the total weight of the steamship/vehicle. The water-resisting enclosure is arranged at the periphery above a deck of the cabin, and the front part of the deck is provided with the rescue suspension arm. Compared with the prior art, the tracked steamship/vehicle has the functions of advancing on the ice surface and the wet land and in water, also has the advantages of safety in use, wide in application range, high in adaptability and the like and has favorable popularization and application values.

The invention relates to the technical field of pipe jacking construction, and aims to provide a mechanical pipe jacking construction process. The process comprises the following steps of lofting andrechecking; well construction; pipe jacking equipment and ground auxiliary facilities are installed; discharging the pipe jacking equipment out of the working well; a jacking axis is preset on the console, the position relation between a machine head of the pipe jacking equipment and the jacking axis is displayed in a laser point mode, and meanwhile a three-dimensional simulation model used for simulating the pipe jacking construction process is arranged in the application background; the application background obtains construction process data of the console in real time and inputs the construction process data into the three-dimensional simulation model, and the three-dimensional simulation model controls the application background to give an alarm; an operator adjusts the position of amachine head of the deviation correcting pipe jacking equipment until the position deviation between the laser point and the jacking axis is smaller than or equal to a preset value; pipe jacking equipment enters a receiving well; and jacking-in and soil-out device. The process has the effects of assisting an operator in finding the running direction of the machine head and adjusting the running direction of the machine head in time, so that the situation that the construction quality is influenced by personal errors during construction is reduced.

The invention discloses a water garbage bin. The water garbage bin comprises a garbage bin body. A water inlet is formed in the upper portion of the garbage bin body. A water pump is arranged at the bottom of the garbage bin body. The water inlet is immersed in water. A positioning device used for maintaining the water line of the garbage bin body is arranged on the garbage bin body. According to the scheme, the water inlet is formed in the upper portion of the garbage bin body and immersed in the water, the water inlet is flush with the water surface or is lower than the water surface, water is pumped into the garbage bin body continuously through the water inlet of the garbage bin body by means of the water pump, garbage is left in the garbage bin body, and water is drained out of the bin body through the water pump; and by arranging the positioning device, when the water level changes, the water line of the garbage bin body can be adjusted in time, the height different between the water inlet and the water surface is maintained, the garbage can be collected conveniently, and the garbage bin body can be prevented from drifting away along with water flow.

The invention discloses a manufacturing method and a structure for a basement floor without crack, leakage and with an oversized area. According to the method and the structure, disclosed by the invention, a concrete self waterproof floor board layer is firstly poured, and the concrete self waterproof floor layer is poured by adopting leakage resisting concrete; a drain board layer made from high impact polystyrene (HIPS) is paved on the concrete self waterproof floor board layer; then, a plain concrete leveling layer is poured on the drain board layer; a reinforced concrete layer of which the thickness is from 160 to 260mm is poured on the plain concrete leveling layer, the reinforced concrete layer is divided into small integrated reinforced concrete layers by expansion joints, and extruded polystyrene board materials are filled in the expansion joints; a polyurethane coating layer is painted on each small integrated reinforced concrete layer of the reinforced concrete layer, and silicone weather-proof glue is filled in a gap between every two adjacent polyurethane coating layers. The structure has the advantages of difficulty in sinking, no crack, no leakage and the like.

The invention discloses a dust remover for filtering combustible dust-containing gas. According to the invention, a plurality of first guide pipes are arranged at one end of a supporting plate at equal intervals; a second guide pipe is welded and fixed at one ends of the first guide pipes; a plurality of third guide pipes are arranged at one end of the supporting plate at equal intervals; one endsof the third guide pipes are welded and fixed with a fourth guide pipe; and by arranging the fourth guide pipe and the second guide pipe, the first guide pipes are internally communicated with the second guide pipe, so that condensed nitrogen circularly flows in the first guide pipes, the first guide pipes can cool a filtering core, and after gas enters a filtering box, the gas passes through a filtering core to filter and separate dust particles, the dust particles are not prone to generate static electricity through cooling and humidity increasing, the mass of the dust particles is increased due to humidity increasing, the dust particles are prone to sinking into the bottom end of a dust accumulation box, and the accumulated dust is conveniently treated so as to substantially improve the dust treatment efficiency in gas and conveniently achieve subsequent accumulated dust treatment.