A mixed reaction device for scr denitrification of industrial flue gas

Abstract

The invention discloses an industrial flue gas SCR denitrification mixed reaction device in the technical field of industrial flue gas SCR denitrification, comprising a denitrification tank, the bottom of the inner wall of the denitrification tank is fixedly connected with a cylindrical reaction shell, and the bottom of the cylindrical reaction shell is end of the denitrification tank and extends to the bottom, the two ends of the bottom of the cylindrical reaction shell are respectively connected with a one-way ventilation valve and a one-way liquid injection valve, the bottom of the cylindrical reaction shell is fixedly installed with a motor, the The output end of the motor is fixedly connected with a stirring shaft, the top of the stirring shaft penetrates the cylindrical reaction shell and extends to its interior, and a connecting frame is slidably connected on the surface along the extending direction of the axis, and a stirring shaft is fixedly connected on the surface of the connecting frame. leaf; the whole denitrification mixing device of the present invention can carry out intermittent stay and mixing of the flue gas, so that the flue gas can be fully mixed with the denitrification liquid, and it passes through three different denitrification spaces, forming a three-layer denitrification, which is beneficial to the flue gas The denitrification is more thorough.

Description

Technical field [0001] The present invention relates to the field of industrial flue gas SCR denitration technology, in particular a industrial flue gas SCR denitration mixing reaction device. Background technique [0002] In the prior art, the invention of the invention, the invention, and the present invention, which is 201810603947.x, discloses a kiln SCR denitration process including the following steps: extraction kiln The extremely cold section high temperature flue gas is led to the kiln head; the high-temperature flue gas is introduced to the kiln head, and the high temperature flue gas in the kiln is mixed with the flue gas in the kiln head, and the flue gas temperature in the kiln rises to 350 ° C; High temperature flue gas after heating, the SCR denitration device is introduced; the SCR denitration device passes into the high-temperature flue gas, and the ammonia water is introduced into the SCR denitration apparatus, so that the ammonia water is reacted with the high ...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of industrial flue gas SCR denitrification mixing reaction device, to solve the above-mentioned background technology. Detachment after contact reaction, unable to obtain interstitial mixed contact, resulting in short contact time, insufficient reaction time, and incomplete denitrification

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