36 results about "Coal plant" patented technology

A method to integrate collected solar thermal energy into the feedwater system of a Rankine cycle power plant is disclosed. This novelty uses a closed loop, single phase fluid system to collect both the solar heat and to provide the heat input into the feedwater stream of a regenerative Rankine cycle. One embodiment of this method of integrating solar energy into a regenerative Rankine power plant cycle, such as a coal power plant, allows for automatic balancing of the steam extraction flows and does not change the temperature of the feedwater to the boiler. The concept, depending on the application, allows for the spare turbine capacity normally available in a coal plant to be used to produce incremental capacity and energy that is powered by solar thermal energy. By “piggybacking” on the available components and infrastructure of the host Rankine cycle power plant, considerable cost savings are achieved resulting in lower solar produced electricity costs.

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 discloses an environmental functional material applied to electroplating wastewater treatment; all components are as follows by mass percentage; kieselguhr, modified purified diatomite,bentonite, modified purified bentonite, attapulgite, modified purified attapulgite, kaoline and / or 20-80 percent of modified purified kaoline, 10-40 percent of humic acid and 10-40 percent of chitosan. The material has convenient usage, good treatment effect, and large and dense formed floccules, shortens settling time, and is easy to lead heavy metal ions, COD, ammonia-N, phosphorus, chromaticity and other indexes in wastewater to synchronously achieve discharge standard regulated nationally, the produced residue can recycle heavy metal, and secondary pollution is not easy to generate. Thematerial is suitable for treating wastewater in industries such as circuit boards, electro-plating, metal finishing, photographic film manufacturing, coal plants, municipal or industry waste incineration, battery production and the like.

The invention provides a computational method for modeling the volume of a material pile. In the method, a plurality of square columns are formed by longitudinal and transverse two-dimensional cutting of sampled data of the original profile of the material pile, column surface height data of each square column is obtain by filtering processing, the volume of each square column is computed, and the volumes of the square columns are added to obtain the total volume of the whole material pile. The method can be applied in the field of material pile volume measurement effectively, so that material pile profile sampled data obtained by the vertical scanning of the material pile by a measurement system is processed to obtain a continuous surface three-dimensional model of the material pile, and the volume of the material pile is computed at the same time. The processing process of the method comprises: cutting the material pile into square columns; distributing data into columns; processing data in columns; compensating for material pile data; processing data among columns; and the like. The three-dimensional model of the material pile can be displayed in several modes such as an original data mode, an after-modeling color mode, isohypse line color-based mode and the like. The method is applied in enterprises and public institutions such as power plants, coal plants and the like for realizing the accurate measurement and computation and visual display and management of the volume of the material pile.

The invention discloses a method for desulfurizing nitric oxides in the sintering flue gas, comprising adding ammoniation to the sinter mixture and then sintering. The said ammoniation is distilled waste water or cyanogen and amino group salt of chemical plant such as carbamide, ammonium salt, ammonia and coal plant. The level of addition of said ammoniation is X=n*[(XNOx+XSO#-[2]*2) / m]. The method for desulfurizing nitric oxides in the sintering flue gas in the invention adds low-cost ammoniation to the sinter mixture, transmutes the NOx exhaust in sintering process to be N2 without harm to the environment, and also desulfurizes the SO2 producted in the sintering process at the same time. The method can desulfurize NOx at a lower cost, the desulfurizing ratio of saltpetre can reach to 66.7 percent, and the desulfurizing ratio of SO2 can reach to 80-95 percent.

The invention provides an opencast and underground combined mining method of steeply inclined coal seam groups; the detailed implementation method comprises the following steps: opencast construction is carried out downwards in a certain angle along the inclined direction of the steeply inclined coal seam group, the construction is conducted to reach a certain distance deeper than that when the first coal seam appears, then horizontal construction is conducted until all of the steeply inclined coal seam groups are penetrated, and then the construction is continued back to the surface of the earth at a certain angle; at the location with a certain distance below the coal seam, another construction gallery is dug and penetrated through along the trend of the coal seams; transportation equipments are arranged in a laneway, the laneway is used for placing top coal or other coal mining methods are adopted, the coals mined are carried into the construction gallery by the laneway transportation equipment, and then are transported to a mine coal plant. The opencast and underground combined mining method of the steeply inclined coal seam groups solves a plurality of problems such as high mining cost and low resource recovery rate and the like in the opencast of the steeply inclined coal seam groups, simultaneously solves the problems such as low safety, high labor intensity, low efficiency and high cost and the like during the underground mining of the steeply inclined coal seam groups, causes the opencast mining to become underground mining and the underground mining to become opencast and ensures the complementation of the strengths and weaknesses, thus being a safe and highly efficient coal mining method of the steeply inclined coal seam groups and having good social benefit and economic benefit.

The invention relates to an intelligent coal preparation plant whole-network communication information system, which comprises a whole plant production control system, a production assisting sub system, a safety guarantee system, a video monitoring system, a safety guarantee system, an upper-layer information management system and a data exchange platform, wherein the whole plant production control system, the production assisting sub system, the safety guarantee system, a video monitoring system, the safety guarantee system and the upper-layer information management system are connected to the data exchange platform through an Ethernet network; the data collection, storage and exchange of each system are completed on the data exchange platform; data with unified formats and specificationsis provided for the upper-layer information system. The intelligent coal preparation plant whole-network communication information system has the beneficial effects that various kinds of production and safety guarantee informatization system data in the coal preparation plant range can be stored and managed in a unified way; a solution of basic data collection is provided for coal plant MES system development and intelligentized building.

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 discloses an embedded rail groove cleaning device for a coal plant, and relates to the field of rail groove cleaning devices. The device comprises a device body, cleaning mechanisms and a holding rod part, a containing mechanism is arranged below the device body, one end of the containing mechanism is connected with the two cleaning mechanisms, each cleaning mechanism comprises a conveying shaft, and spiral blades are arranged on the outer wall of the conveying shaft. The rail groove cleaning function is achieved through a conveying barrel, a push shovel, a discharging port, the conveying shafts, the spiral blades and the like, in the constant-speed moving process of the device, a rail wheel drives the conveying shafts to rotate through a universal joint, the conveying shafts drive the spiral blades to rotate when rotating, and meanwhile conical thread heads at the tail ends of the conveying shafts rotate along with the conveying shafts; the fire coal entering the push shovel along with the pushing force is driven by the spiral blades to move to the top end of the conveying barrel from the contact position of the push shovel and the conveying barrel, and falls into the storage bin from the discharging port to be collected.

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 provides an information management system for coal plant electromechanical equipment management, and belongs to the technical field of coal mine equipment management. The information management system for coal plant electromechanical equipment management comprises a network connection module, a two-dimensional code module, an information acquisition module, an information input module, a login management module and an information modification module. The two-dimensional code module comprises two-dimensional code stickers used for being pasted on the end faces of all electromechanical devices, and an operator scans the two-dimensional code stickers corresponding to the electromechanical devices through a smart phone to inquire maintenance information of the electromechanical devices. The information acquisition module is used for acquiring basic information of the electromechanical equipment and inputting the basic information into the system, and then scanning a two-dimensional code sticker corresponding to the electromechanical equipment; the system has the advantages of saving invested funds, reducing the use cost, being convenient to update and maintain, simple to operate, having no error rate and improving the inspection and supervision efficiency.

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.

The invention discloses a whole vehicle unloading turnover device. The whole vehicle unloading turnover device comprises a fixed frame device, wherein a movable frame device is arranged at the upper part of the fixed frame device, the movable frame device is hinged to the rear end of the fixed frame device, a jacking hydraulic cylinder is arranged between the movable frame device and the fixed frame device, and a buffering device is arranged at the bottom of the hydraulic cylinder; a protective steel wire rope is arranged at the front part of the upper surface of the movable frame device; and a fixed frame is arranged at the bottom of the steel wire rope; the whole vehicle can be driven to the upper part to automatically turn over, the whole vehicle can be longitudinally turned over by 40 degrees or above, the unloading function is achieved, and the vehicle is suitable for potato transporting and unloading, coal plant transporting and unloading, ore transporting and unloading, sand and stone transporting and unloading and the like and particularly suitable for large transporting vehicles of 80 tons or above. The unloading period is shortened, the labor intensity of workers is relieved, potential safety hazards are eliminated, the personnel cost is greatly reduced, the maintenance cost is low, operation is easy and convenient, manual unloading is converted into automatic unloading, and application and popularization are facilitated.