37 results about "Coal plant" patented technology

The invention relates to environment-friendly, low-cost and high-strength artificial stone and a method for preparing the same. The environment-friendly, low-cost and high-strength artificial stone comprises, by weight, 60-80 parts of fritted sand, 10-30 parts of quartz powder, 9-14 parts of terephthalic unsaturated resin, 0.6-1 part of curing agents, 0.8-1 part of coupling agents, 0.5-1 part of color paste and 0.1-1 part of toner. The environment-friendly, low-cost and high-strength artificial stone and the method have the advantages that mine solid waste materials or discarded materials canbe used as production raw materials, blast furnace gas and coke oven gas which are recycled and purified in steel and iron plants and coking coal plants in production procedures can be used as fuel inproduction procedures, accordingly, the production procedures are green and environmentally friendly, and waste can be recycled; the environment-friendly, low-cost and high-strength artificial stoneis high in strength, has natural streaks, is attractive, elegant, green and environmentally friendly and can be accepted by domestic and foreign clients, and accordingly the environment-friendly, low-cost and high-strength artificial stone and the method have broad prospects on domestic and international markets.

The invention discloses a dry ash loading device for a coal-fired power plant. Several ash hoppers are arranged in the ash storage, and a manual gate valve is arranged at the ash outlet at the bottom of the ash hopper. The ash pipe is connected in turn with a pneumatic gate valve and an expansion joint. The outlet end of the expansion joint is connected to the ash inlet of the dry ash bulk machine through a manual butterfly valve. A bulk head is provided at the ash outlet of the dry ash bulk machine; There is a bag dust collector at the ash outlet, the air suction port of the bag dust collector faces the ash outlet of the dry ash bulk machine, the air outlet of the bag dust collector is connected to a dust extraction fan, and the inclination angle of the ash fall pipe is set. The equipment of the present invention is simple, and by arranging the inclination angle of the ash-falling pipe, manual butterfly valve, and bag filter, the wear problem of the dust extraction fan is solved, the falling speed of the material is reduced, the flying of the material is reduced, and the environmental pollution problem during loading is solved. , Improve the loading environment, reduce the investment cost, operation and maintenance amount and the risk of pipe blockage.

The invention relates to a boiler coal feeding device capable of increasing coal combustion efficiency. The boiler coal feeding device comprises a coal hopper, wherein a roller is arranged at an outlet of the coal hopper; an elastic baffle plate is arranged under the roller and is obliquely arranged; an elastic assembly driving the elastic baffle plate to bounce up and down is arranged under the elastic baffle plate; a screening assembly is arranged under the elastic baffle plate and comprises an upper-layer screening plate and a lower-layer carrying plate; the upper end of the upper-layer screening plate is connected to the lower end of the elastic baffle plate in a lap-joint way; the lower end of the upper-layer screening plate is positioned right above a furnace bar, and an included angle between the upper-layer screening plate and the elastic baffle plate is 120 to 150 degrees; the lower-layer carrying plate is positioned under the upper-layer screening plate; the lower end of the lower-layer carrying plate is connected with the bottom end of the upper-layer screening plate; the upper end of the lower-layer carrying plate is positioned under the upper end of the upper-layer screening plate, and an included angle between the lower-layer carrying plate and the upper-layer screening plate is 20 to 30 degrees. Compared with the prior art, according to the boiler coal feeding device disclosed by the invention, the fuel coal can be more fully combusted, the heat efficiency is increased, energy is saved, the cost is reduced, and meanwhile, the electricity consumption and the fault rate of an auxiliary machine of the boiler are obviously reduced.

The invention relates to a zirconium-doped vanadium-based oxide catalyst for selectively catalyzing and reducing the nitrogen oxide through ammonia, and a preparation method thereof. The catalyst is a metal oxide catalyst which is formed by loading zirconium and vanadium oxide onto the surface of titanium tungsten powder. Through the zirconium doping method, the catalytic properties such as high-temperature stability of the traditional vanadium-based catalyst and the N2 (nitrogen) generation selectivity can be greatly improved, the prepared zirconium-doped vanadium-based oxide catalyst is suitable for a nitrogen oxide catalytic purifying device adopting the diesel exhaust as a representative movable resource and the smoke of a coal plant as a representative fixed source.

The invention relate to a sorting technology of coarse coal slime of a coal plant, in particular to coarse coal slime sorting equipment and a technology of the coarse coal slime sorting equipment. The coarse coal slime sorting equipment is characterized by comprising a TBS coal slime sorting machine which comprises a tank body, a feeding well, a turbulent flow plate, a density sensor, an actuator, a discharging valve and an overflow weir. Therefore, the coarse coal slime sorting equipment and the technology are reasonable in design and easy to achieve.