Flue gas guiding system for coke side small furnace head

Abstract

The invention discloses a flue gas guiding system for a coke side small furnace head. A supporting seat is arranged on a furnace top baseline, and a fan and a dust remover are fixed on the supportingseat. The flue gas guiding system further comprises a main gas pipe and a plurality of gas collecting hoods; the gas-collecting hoods are covered above the outer sides of the two adjacent coke side small furnace heads; one end of the main gas pipe is respectively communicated with a suction opening of the fan and a gas inlet of the dust remover, and the other end of the main gas pipe is communicated with the gas-collecting hoods through gas branch pipes; each of the gas-collecting hoods consists of a collecting section and a refraction section which are mutually connected, a spiral groove is formed in the inner wall of the collecting section in the axis direction, the refraction section is conical, and the cone tip part of the refraction section is communicated with the tail end of the gasbranch pipe. During work, the gas-collecting hoods simultaneously collect flue gas escaped from the small furnace head on the furnace top baseline in a centralized manner, and the collected flue gasenters the main gas pipe through the gas branch pipes and then enters a dust filter under the traction of fan wind for flue gas treatment, so that the escape of the flue gas from the furnace top is eliminated, and the environmental pollution is avoided.

Description

technical field [0001] The invention relates to the technical field of coking and environmental protection, in particular to a smoke guiding system for a small burner head on the coke side. Background technique [0002] Coking is a multi-source pollution industry, and smoke and dust are the main pollutant fugitives in the coking production process. Modern chamber coke ovens are generally equipped with vehicle-mounted or ground station coal charging and coke discharge dust removal systems, of which the ground station dust removal system is widely used. The ground station type coke discharge dust removal system mainly uses hydraulic coupling or frequency conversion control fans to collect most of the smoke dust on the coke side through the collection cover set on the coke stop car and purifies it through the coke discharge dust collector. However, part of the smoke and dust still escapes from the small burner head on the coke side, which deteriorates the working environment. ...

AI Technical Summary

Problems solved by technology

The temperature of the coke discharge smoke is high, the instantaneous thermal buoyancy and the amount of dust are large, but the area ratio of the bucket-type dust collection hood between the top of the coke holding car and the top of the coke quenching car is very different, and the suction of the ground dust removal fan is mainly allocated to the coke quenching The bucket-type dust collection cover on the top of the carriage, and there is a gap between the coke-guiding grid-covered bucket-type dust collection cover and the small burner, so part of the smoke escapes from the small burner.

In order to improve the dust removal effect, some coking enterprises adopt the method of opening holes on the side plate of the bucket-type dust collection cover near the furnace body on the top of the coke guide grid and attaching a vehicle-mounted fan to assist dust collection. Some enterprises adopt the method of adjusting the dust removal fan of the ground station to run at high speed in advance The time parameter is used to pre-increase the suction force of the red coke in the initial grid entry stage; but the results are not satisfactory, and the power consumption is also increased

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