Deep purification system for mixer area

Abstract

The invention relates to the technical field of iron and steel plant environmental protection devices, and concretely relates to a deep purification system for a mixer area. The output end of a main connecting pipe is connected with the input end of a fan, the two input ends of the main connecting pipe are sequentially in butt joint with dust catching main pipes with nominal pipe diameters from large to small respectively, and the dust catching main pipes are connected with dust catching covers through dust catching branch pipes respectively. A feeding belt conveyor of a primary mixer is provided with two dust catching covers, the feeding end and the discharging end of the primary mixer and the feeding end and the discharging end of a secondary mixer are each provided with one dust catching cover, three dust catching covers are arranged in a belt conveyor vestibule between the primary mixer and the secondary mixer, and the output end of the fan is connected with a wet type electric precipitator. An in-pipe spraying water supply pipe is connected with nozzles in the dust catching main pipe and the dust catching branch pipes through branches, a drainage trench is connected between the drainage end of the wet type electric precipitator and a water pool, and the circulating water pump conveys water in the water pool to the water using end of the primary mixer and the in-pipe spraying water supply pipe. The problem that ultralow emission treatment of dust-containing steam in the mixer area of an iron and steel enterprise cannot be achieved is solved.

Description

technical field [0001] The invention relates to the technical field of environmental protection devices in iron and steel plants, in particular to a deep purification system for a mixer area. Background technique [0002] In iron and steel enterprises, the primary mixer and secondary mixer in the sintering plant are important equipment in the iron and steel production process. Their function is to mix iron ore powder, coal powder, stone powder, quicklime and other raw Mix well in a mixer. During the mixing process and the digestion of quicklime, a large amount of dust and water vapor are likely to be generated, and the main locations are the inlet of the mixer, the outlet of the mixer, and the belt conveyor. The main component of dust particles is Ca(OH) 2 , mineral powder, water vapor, etc., the average particle size is between 0.5 and 30 μm, it is easy to diffuse, and can float in the air for a long time. In the absence of any dust collection equipment, the surrounding ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a deep purification system for the mixing machine area, which is used to solve the problem that the dusty steam in the mixing machine area of ​​iron and steel enterprises cannot achieve ultra-low emission treatment

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