Cement kiln denitration device

Abstract

The invention discloses a cement kiln denitration device. The cement kiln denitration device comprises a feed-end chamber, a pipeline-shaped gasification furnace is arranged on the feed-end chamber and comprises an inclined first gasification pipe, a first raw material pipe is connected to the side wall of the first gasification pipe, the lower end of the first gasification pipe is connected withthe feed-end chamber, a second gasification pipe is connected to the upper end of the first gasification pipe, a bent pipe is connected to the upper end of the second gasification pipe, a third gasification pipe is connected to the other end of the bent pipe, a connecting pipe is connected to the third gasification pipe, a decomposing furnace is connected to the upper end of the connecting pipe, the height of the bent pipe is larger than that of the decomposing furnace, a tertiary air pipe is connected to the side wall of the connecting pipe, an eccentric cone is arranged at the lower end of the connecting pipe, and a smoke chamber raw material pipe is connected to the eccentric cone and connected with the feed-end chamber. The cement kiln denitration device can greatly reduce the consumption amount of ammonium hydroxide and escaping of the ammonium hydroxide, no catalyst is need, and secondary environment pollution can be avoided; and the production capacity and temperature adaptability are high, system blockage is not likely to occur, the later-stage maintenance work load is small, and emission of nitrogen oxide can be greatly reduced.

Description

technical field [0001] The invention relates to the technical field of cement production equipment, in particular to a cement kiln denitrification device. Background technique [0002] Cement kiln is a typical high-emission industrial furnace, especially the emission of nitrogen oxides. Nitrogen oxides can cause acid rain and photochemical smog, endanger people's health and pollute the atmospheric environment. With the improvement of people's environmental awareness, it will reduce the cement industry The voice of nitrogen oxide emissions is getting higher and higher, and the cement industry has become the third largest source of nitrogen oxide emissions after electricity and automobiles. With the rapid development of my country's economy, the demand for cement remains high, resulting in increasing nitrogen oxide emissions, and the country's nitrogen oxide emission standards for the cement industry are becoming more and more stringent. [0003] Rotary kiln and calciner ar...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a cement kiln denitrification device to solve the problem of high nitrogen oxide discharge in the existing cement kiln denitrification device

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