Bag filter for tamping coke oven

Abstract

The invention discloses a bag filter for a tamping coke oven. A supporting base is arranged on an oven top baseline; a fan and a dust remover are fixedly arranged on the supporting base; the bag filter further comprises a main air pipe and a plurality of air collecting covers; the air collecting covers just cover the outer side of two adjacent coke-side small oven heads; one end of the main air pipe is communicated with an exhaust inlet of the fan and an air inlet of the dust remover; the other end of the main air pipe is communicated with the plurality of air collecting covers through branch air pipes; each of the air collecting covers is composed of a collecting section and a refraction section which are connected with each other; a spiral slot is formed in the inner wall of each collecting section along the axis direction; each refraction section is of conical shape; the conical tip of each refraction section is communicated with the tail end of the corresponding branch air pipe. In a working process, the air collecting covers are used for gathering and collecting smoke escaping from the small oven heads on the oven top baseline and the collected smoke enters into the main air pipe through the branch air pipes and then enters into the dust filter under the traction of wind power of the fan, so that the smoke treatment is performed, the escape of smoke from the oven 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 bag-type dust collector for tamping coke ovens. 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 disch...

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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