Bag type coke oven smoke suppression and dust removal system

Abstract

The invention discloses a bag type coke oven smoke suppression and dust removal system. A supporting seat is arranged on a furnace top base line; a fan and a dust remover are fixed on the supporting seat; the bag type coke oven smoke suppression and dust removal system further comprises a main gas pipe and multiple gas collection hoods; the gas collection hoods cover right above the outer sides oftwo adjacent coke side small burners; one end of the main gas pipe is communicated with a gas suction opening of the fan and a gas inlet of the dust remover; the other end of the main gas pipe is communicated with the multiple gas collection hoods through a branch gas pipe; the gas collection hoods comprise collection sections and refraction sections which are connected; spiral grooves are formedin the inner walls of the collection sections in the axial directions of the collection sections; the refraction sections are conical, and cone tip parts of the refraction sections are communicated with the tail end of the branch gas pipe. During working, the multiple gas collection hoods simultaneously intensively collect exhaust gas escaping from small burners on the furnace top base line, andthe collected exhaust gas enters the main gas pipe and then enters a dust filter under traction of wind power of the fan for treatment, so that escape of the exhaust gas from the furnace top is avoided, and pollution to the environment is avoided.

Description

technical field [0001] The invention relates to the technical field of coking and environmental protection, in particular to a bag-type coke oven smoke and dust removal system. 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. The coke dis...

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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