Power generation denitration equipment

Abstract

The invention discloses power generation denitration equipment, which comprises an SCR reactor catalyst, a composite dense ammonia gas ejection pipe group, a rotary flying dust collector and an ammonia gas conveying group, wherein the SCR reactor catalyst comprises a fixing sleeve and a honeycomb catalyst, the honeycomb catalyst is arranged in the fixing sleeve in a sleeving manner, the compositedense ammonia gas ejection pipe group comprises an upper gas ejection pipe group and a lower gas ejection pipe group, the upper gas ejection pipe group comprises a semicircular flow dividing disc, aninjection pipe and a conveying pipe, the injection pipe is arranged on one side of the semicircular flow dividing disc, the conveying pipe is arranged on the other side of the semicircular flow dividing disc, and the rotary flying dust collector comprises a rotary thrust disc, a flying dust collector, an impeller set, an ammonia water turnover disc and a dust scraper. According to the invention, nanoparticle convolution evaporation effect is adopted, and evaporated ammonia gas is directly fed into a honeycomb catalyst through an injection pipe, so that the traditional evaporation conveying process flow for conveying ammonia gas is optimized.

Description

technical field [0001] The invention relates to the technical field of thermal power generation, in particular to an out-of-stock equipment for electric power generation. Background technique [0002] At present, the exhaust gas emitted by burning fuel in thermal power generation contains a large amount of NOx, and the reactant of NOx is an important substance that causes air pollution. Therefore, the elimination of exhaust gas is the top priority in environmental protection work. Two process methods: SCR catalyst destocking and SCAN catalyst destocking process. In terms of destocking efficiency, SCR catalyst destocking is the most efficient method, but the cost is high. The current SCR catalyst destocking has the following disadvantages: 1. Ammonia gas The transportation adopts a separate set of transportation technology. Usually, ammonia water is atomized through the evaporator and then diluted through the air mixer, and then discharged through the nozzle in the flue and e...

AI Technical Summary

Problems solved by technology

[0002] At present, the exhaust gas emitted by burning fuel in thermal power generation contains a large amount of NOx, and the reactant of NOx is an important substance that causes air pollution. Therefore, the elimination of exhaust gas is the top priority in environmental protection work. Two process methods: SCR catalyst destocking and SCAN catalyst destocking process. In terms of destocking efficiency, SCR catalyst destocking is the most efficient method, but the cost is high. The current SCR catalyst destocking has the following disadvantages: 1. Ammonia gas The transportation adopts a separate set of transportation technology. Usually, ammonia water is atomized through the evaporator and then diluted through the air mixer, and then discharged through the nozzle in the flue and enters the catalyst together with the flue gas. The structure is complex and the cost is high. 2. Smoke Na, Ga and Si in the gas will pollute the catalyst and cause the honeycomb catalyst to be polluted, reducing the service life. At the same time, the caustic soda formed by Na and Ga will block the honeycomb catalyst and affect the off-stock efficiency. 3. The flue gas contains Flying dust is easy to cause impact damage to the honeycomb catalyst, and it will also block the honeycomb catalyst. Therefore, the invention provides a power generation out-of-stock equipment

Images