4results about How to "Guaranteed denitrification effect" patented technology

The utility model discloses a kind of SCR denitration devices, belong to solve the problem of scratch to catalyst in the process of ash removal, solve the problem of scratch to catalyst in the process of ash removal, the technical scheme of solving this problem mainly includes rotary kiln, preheater, ammonia injection system and SCR reaction tower, preheater is located above rotary kiln, SCR reaction tower is equipped with flue gas pipeline between preheater, SCR reaction tower is equipped with mounting bracket, SCR reaction tower outside is equipped with fixing frame, mounting bracket is equipped with ash removal pipe, ash removal pipe is equipped with ash removal harrow, ash removal harrow is equipped with nozzle, fixing frame is equipped with feeding mechanism and air blower, one end of ash removal pipe extends to SCR reaction tower outside and is connected with feeding mechanism, feeding mechanism drives ash removal harrow reciprocating motion by ash removal pipe, ash removal pipe is equipped with anti-blocking fan to prevent nozzle from entering dust and being blocked during ash removal harrow retraction process.The utility model mainly guarantees ash removal effect while reducing damage to catalyst, and then ensure denitration effect.

The utility model relates to a boiler denitration device technical field, and disclose a kind of for the full load denitration device of boiler depth peak shaving, including main flue, and the one side of main flue is provided with the mixing assembly for to flue gas conveying mixture, and mixing assembly includes the air inlet pipe and processing frame of being arranged in the one side of main flue, and the one end of main flue is provided with extension frame, and extension frame inside is provided with guide slot, and the one end of extension frame is provided with cavity, and the inside of cavity is provided with connecting shaft, and the outside of connecting shaft is provided with fan leaf;Cavity inner wall is provided with temperature sensor, and the outside of main flue is provided with bypass pipe, and the inside of bypass pipe is provided with control valve.The utility model is mixed by being contacted fully to high-temperature flue gas and low-temperature flue gas, so that the temperature in flue gas is evenly distributed, improve the consistency of flue gas temperature, ensure catalyst use effect, and it is convenient to detect flue gas temperature and adjust high-temperature flue gas and low-temperature flue gas proportion to make it adapt to catalyst action temperature.

This invention discloses a low-load denitrification-deep peak-shaving system based on molten salt thermal energy storage and its operating method. The system includes a coal-fired power generation system and a molten salt thermal energy storage system. The coal-fired power generation system includes a boiler, a denitrification device, a deaerator, and an industrial steam header. The molten salt thermal energy storage system includes a first flue gas heating path, a second flue gas heating path, and a molten salt thermal energy storage path. The coal-fired power generation system provides electricity to the molten salt thermal energy storage path, high-temperature molten salt provides a heat source for the first flue gas heating path, and high-temperature steam provides a heat source for the second flue gas heating path. The high-temperature steam is obtained by heating condensate with high-temperature molten salt. This invention adds two methods of heating flue gas for energy release: high-temperature molten salt and high-temperature steam. This avoids the imbalance between the input and output energy of the molten salt thermal energy storage system when the steam demand is insufficient, and reduces the cost of the thermal energy storage molten salt and investment. This invention uses molten salt energy storage to increase the flue gas temperature, ensuring the denitrification capability of the unit during low-load operation.

The present application relates to the technical field of flue gas purification, and discloses a high-temperature flue gas dust removal and denitration device, which comprises a flue gas inlet section, a dust removal and denitration reaction zone, an inertial collision dust removal zone, a clean flue gas chamber and a flue gas outlet section. The arrangement of the dust removal and denitration reaction zone, the inertial collision dust removal zone, the clean flue gas chamber and the flue gas outlet section meets the processing path of the flue gas entering from the flue gas inlet section, i.e. the flue gas enters the dust removal and denitration reaction zone from the flue gas inlet section, is subjected to primary treatment in the dust removal and denitration reaction zone, enters the inertial collision dust removal zone, is subjected to collision and dust removal in the inertial collision dust removal zone, is indirectly returned to the dust removal and denitration reaction zone, is subjected to secondary treatment in the dust removal and denitration reaction zone, enters the clean flue gas chamber, and is finally discharged from the clean flue gas chamber to the outside from the flue gas outlet section. The present application can make the flue gas treatment pass through three-stage dust removal and two-stage denitration by setting the flue gas processing path, and has the advantages of excellent dust removal and denitration effect and saving of production cost required by enterprises.