Coke oven smoke dust treatment process and device

Abstract

The invention discloses a coke oven smoke dust treatment device. The coke oven smoke dust treatment device comprises a decoking heat exchanger, an ammonia distillation dedusting mechanism, a purifierand a storage chamber, wherein the decoking heat exchanger and the ammonia distillation dedusting mechanism are connected in a communication mode through a pipeline, and the purifier, the ammonia distillation dedusting mechanism and the storage chamber are connected in a communication mode through a pipeline; and the ammonia distillation dedusting mechanism comprises a cylinder, a spray hole and apower blade, and a high pressure water pump is installed at the top of the cylinder. Through the design of a spraying hole of an atomizing spraying pipe, the high pressure water pump pressurizes water to drive the atomizing spraying pipe to rotate clockwise, it is ensured that the atomization effect of ammonia water is good and the ammonia water is in full contact and mixed with smoke dust to remove smoke dust soot particles, the power blade rotating clockwise automatically blows the smoke dust into the ammonia distillation dedusting mechanism, a special air blowing device does not need to bedesigned, the cost of purification and resource use are greatly reduced, the smoke dust particles and the ammonia water can be conveniently quickly separated, and the separated ammonia water can be continuously recycled.

Description

technical field [0001] The invention relates to the field of coke oven smoke control, in particular to a coke oven smoke control process and treatment equipment. Background technique [0002] Coke oven, a furnace usually made of refractory bricks and refractory blocks, used to convert coal to produce coke, and use coal to refine coke; the pollutants emitted by coke ovens have complex components, including nitrogen oxides ( NOx), sulfur dioxide, carbon monoxide, carbon dioxide, hydrogen sulfide, hydrogen cyanide, residual ammonia, phenol, coal dust, and tar, etc., have great pollution to the environment and need to be treated before being discharged up to standard. [0003] In the treatment process of the existing coke oven dust, the dust contains a large amount of sulfide and nitride. The existing treatment method is to directly absorb or discharge after reaction. The coke oven dust sulfide and nitride directly cause waste and cannot be repeated. Utilization; at the same ti...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a coke oven smoke control process and treatment equipment. In order to overcome the above-mentioned existing coke oven smoke in the treatment process, the smoke contains a large amount of sulfide and nitride. The existing treatment method is to directly absorb Or discharge after reaction, the coke oven dust sulfide and nitride directly cause waste and cannot be reused; at the same time, when the dust particles in the coke oven dust are removed, the dust is generally blown into the ammonia distillation dust removal mechanism by a blower, which requires Equipped with special machinery for supporting use; and in the subsequent ammonia water collection process, the soot particles precipitated in the ammonia water cannot be removed quickly and conveniently, and special steps are required to separate the ammonia water from the soot particles.

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