140 results about "Asbestos fibres" patented technology

The invention discloses a heat-resistant modified plastic material with high abrasion resistance and high toughness. The heat-resistant modified plastic material is prepared from the following raw materials: modified urea-formaldehyde resin, polyvinyl chloride, polystyrene, trimethyl phosphate, polyvinyl chloride, barium sulfate, low-density polyethylene, polystyrene, calcium sulfate whiskers, talcum powder, heavy calcium carbonate, nano calcium carbonate, magnesium hydroxide, aluminum hydroxide, zinc borate, nano zinc powder, antimony trioxide, aluminum powder, asbestos fibers, jute fibers, ethyl trimethoxysilane, trifluoropropyl methyl silicone oil, zinc sulfate, a compatibilizer, a crosslinking agent, an antioxidant, a modifying auxiliary agent and glycerin. The modified plastic material provided by the invention has excellent abrasion resistance and heat resistance as well as good toughness.

The invention discloses an ultra-bright negative ion glazed brick. The negative ion concentration of the ultra-bright negative ion glazed brick is 5-10 times higher than that of a common glazed brick,and at the same time, a crystal structure reflects light to enable the glazed brick more bright. The glazed brick comprises a bottom layer green body, a sound-insulation insulating layer, a top layergreen body, a base glaze layer, a functional layer and an overglaze layer; the bottom green body and the top green body comprise stone powders, sand, ultra-fine negative ion powders, diatom mud, mud,waste residues and broken mud of ceramic and water; the sound-insulation insulating layer includes a polyamide mesh, asbestos fibers and gypsum powders; the base glaze layer includes potassium sodiumfeldspar, quartz, alumina, washed soil, burnt talc, zirconium silicate and ultra-fine negative ion crystals; the functional layer includes ultra-fine negative ion crystals, activated carbon, diatom mud and glass beads; and the overglaze layer includes potassium sodium feldspar, barium carbonate, dolomite, zinc oxide, burnt talc, burnt soil, washed soil, corundum, nanometer titanium dioxide, and ultra-fine negative ion crystals.

Belonging to field of composite material technics, the invention relates to fibre with multi-layer structure enhanced elastomer pipeline compensator. The compensator is made up with compensate pipeline, two flanges fixedly connected with the compensate pipeline and a diversion knot fixedly connected with one of the two flanges and installed in compensate pipeline. Tube wall's structure is as follows: outer layer is fibre enhanced elastomer composite material (FEC) whose concrete form is fibre cloth enhanced latex mixedly weaved by non-asbestos fibre and steel wire; the second layer is anti corrosive coating wax cloth made by polytetrafluoroethylene (PTFE); the third layer is thermal protective coating made by glass wool or refractory wool in block shape between two layers of glass fibre clothes; inter layer is dust layer made by glass fibre dilatants voile fabric braided after surface treatment. With a new structure, the pipeline compensator has an environment-friendly, high intensity.

Describes a diaphragm for an electrolytic diaphragm cell, e.g., a chlor-alkali cell, in which the diaphragm comprises fibrous material substantially resistant to the environment within the electrolytic cell and spheroidal ceramic microspheres at least partially resistant to the environment within the electrolytic cell associated with said diaphragm. Also describes a diaphragm for an electrolytic cell in which the diaphragm comprises a base mat of fibrous material chosen from asbestos fibers, resin-modified asbestos fibers, synthetic fibers, or mixtures of such fibers on which base mat is applied a coating comprising spheroidal ceramic microspheres. Further describes a synthetic diaphragm for an electrolytic cell, e.g., a chlor-alkali cell, on which is applied a coating comprising substantially water-insoluble inorganic particulate material, e.g., clay material, and spheroidal ceramic microspheres. Still further describes adding a dopant composition comprising spheroidal ceramic microspheres to the anolyte compartment of an electrolytic cell, e.g., a chlor-alkali cell, while the cell is operating.

The invention discloses waterproof glue. The waterproof glue comprises, by weight, 24-60 parts of poly-isobutyl ester, 30-40 parts of aluminum hydroxide, 18-24 parts of phosphotriester, 12-18 parts of antimonous oxide, 8-12 parts of asbestos fibers, 20-30 parts of graphite nodules, 20-40 parts of methoxyphenol, 10-12 parts of acetone, 4-12 parts of acrylamide, 10-28 parts of styrene, 10-24 parts of ethyl alcohol, 20-30 parts of poly-isobutyl ester, 150-200 parts of butyl methacrylate, 20-40 parts of methacrylic acid, 8-16 parts of dehydroacetic acid and 20-40 parts of butanol. The waterproof glue is easy to manufacture, adopted and selected production raw materials are free of toxicity, the glue is good in use effect and environmentally friendly, a tough coating can be formed, and permanent waterproofness and antistatic performance are achieved.

An integral catalyst with regulator channels for oxidizing SO2 is prepared from vanadium oxide, alkali-metal compound, silicon oxide or the mixture of silicon oxide and silicon aluminium oxide as carrier, and glass fibres and / or asbestos fibres and / or meallic wool through mixing, moulding, demoulding, drying and calcining.

A drying and separation integrated machine for a vibrating fluidized bed comprises a front rack (10), a rear rack (12), a separation bed (6), and a rotary plow feeder (1) disposed at the upper portion at the front end of the separation bed (6). The tail end of the separation bed (6) is provided with a waste-rock rotary plow feeder (14) and a fine-coal rotary plow feeder (8), the upper portion of the separation bed (6) is provided with a dust-removing air-induced hood (4), the bottom thereof is provided with an air distribution chamber (3), the upper portion of the air distribution chamber (3) is provided with an air distribution plate (15), and the front rack (10) and the rear rack (12) are connected to the separation bed (6) by a spring (17) and a spring support (16). The bottom of the rear rack (12) is provided with a hydraulic cylinder (13), the lower portion of the rotary plow feeder (1) is provided with a feeding distribution device (2), two dust-removing air-induced hoods (4) and two air distribution chambers (3) are respectively provided on the top and the bottom of the separation bed (6), a heat-insulation coating is sprayed on the outer surfaces of the dust-removing air-induced hood (4) and the air distribution chamber (3), and the lower portion at the front end of the separation bed (6) is provided with a separating eccentric shaft vibration exciter (9). The air distribution plate (15) is formed of upper and lower porous metal plates and asbestos-fiber filter cloth sandwiched between the porous metal plates, the bottom of each air distribution chamber (3) is provided with a gas separator (5), and the gas separators (5) are connected to a hot-air pipe (19) sprayed with a heat-insulation coating. The wet coal in the vibrating fluidized bed is fluidized by high-temperature hot air, heat transfer and mass transfer proceed between the high-temperature air and the wet coal particles, and the moisture in the coal is taken out of the vibrating fluidized bed by the fluidization gas in a form of water vapor. During drying, the coal particles are fluidized by air flow together with vibration. The drying and separation integrated machine for a vibrating fluidized bed is of a simple structure, operates stably, and has high reliability.

The invention relates to a process for manufacturing a high-strength low-density asbestos fiber-free enhanced silicate plate. The process comprises the following steps of: 1, adding 5 to 10 mass percent of cellulose fiber into solution containing 38 to 42 mass percent of quartz and 33 to 37 mass percent of lime, and filtering out water to obtain silicate crystal seeds with size within 2 mu m under the high pressure of between 0.85 and 1.1Mpa and at the high temperature of between 175 and 185 DEG C; and 2, adding 3 to 8 mass percent of silicate crystal seeds into the solution containing 38 to 42 mass percent of quartz and 33 to 37 mass percent of lime, adding 5 to 10 mass percent of cellulose fiber into the solution, filtering out water, performing hydration reaction under the high pressure of between 0.85 and 1.1Mpa and at the high temperature of between 175 and 185 DEG C for secondary crystallization and finally pressing the mixture in a plate molding machine. A new material producedby the process has various superior chemical, physical and mechanical properties, such as low density, high bending strength and the like.

The invention discloses fireproof paint which contains the following raw materials (by weight): 10-15 parts of antimony oxide, 3-5 parts of butyl stearate, 5-7 parts of water soluble resin, 7-12 parts of asbestos fiber, 4-6 parts of borax, 4-6 parts of zeolite powder, 6-7 parts of triethanolamine and 7-9 parts of tung oil. The fireproof paint of the invention can resist fire spreading, has good fireproof performance, has little toxicity, has strong anticorrosion ability, can adhere to the surface of an object for a long time, and is durable in use.

The invention discloses an autoclaved aerated concrete block with good mechanical strength. According to the autoclaved aerated concrete block, by virtue of acetylation on cedar wood fibers, free hydroxyl in cellulose is closed, so that the hydrophobic property and the thermal stability of a material are improved; by adding other effective components through a physical modification method, the durability and the dispersibility of the fibers in autoclaved aerated concrete are improved; by adding the raw materials including coal gangue, palygorskite powder, papermaking white clay, asbestos fiber and the like, the aerated concrete block has excellent mechanical strength, high temperature resistance and water resistance, can be used for a long time at a high temperature environment, can be further used at a wet environment for a long time without mildewing and is long in service life and wide in application range.

The invention discloses a high-temperature resistant silicon carbide reducing tank. After silicon carbide and a bonding agent are fully mixed, the silicon carbide and the bonding agent are added into a tank production mould, and are vibrated, compacted, and solidified, and the weight ratio of the silicon carbide to the bonding agent is 88-92: 12-8; the silicon carbide comprises four silicon carbide raw materials with particles sizes of 3-5 mm, 1-3 mm, 0.1-1 mm and 200 meshes, and the bonding agent comprises clay, feldspar, asbestos fiber, high-purity metal silicon and furan resin. The high-temperature resistant silicon carbide reducing tank, provided by the invention, is used under the high-temperature environment, and has the advantages of strong heat stability, high mechanical intensityand difficulty in destroying after heat and cold alternative use, the silicon carbide tank filled with the material enters into a burning furnace, after burning at 900-1200 DEG C, the rupture strength is 80 MPa, and the repeated times can reach 200 times per silicon carbide tank. The high-temperature resistant silicon carbide reducing tank, provided by the invention, has the advantages of simple production method, high production efficiency, small production energy consumption and low production cost.