Dry quenching primary dust collector structure and dedusting method thereof

Abstract

The invention discloses a dry quenching primary dust collector structure and a dedusting method thereof. The dry quenching primary dust collector structure includes a dust collector inlet, a dust collector outlet, a dedusting channel, and a dust hopper arranged at the bottom of the dedusting channel; the dedusting channel is provided with at least one Z-shaped channel structure, a corner of the Z-shaped channel structure is transversely provided with two dedusting retaining walls which are arranged oppositely, a gas flow channel is formed between the retaining walls, and the dust hopper is arranged at the bottom of the Z-shaped channel structure. Compared with the prior art, the dry quenching primary dust collector structure has the beneficial effects that the dry quenching primary dust collector structure has an original upper retaining wall structure cancelled, the Z-shaped channel structure is arranged, and the two transversely oppositely arranged dedusting retaining walls are added, so that the overall strength of a primary dust collector is improved, and the dedusting efficiency is increased; the structure is more steady, the shedding of brick bodies is reduced, the service life of the primary dust collector is extended, and the maintenance time and costs of spare parts are saved.

Description

technical field [0001] The invention relates to the technical field of coke quenching, in particular to a structure of a primary dust collector for coke quenching and a dedusting method thereof. Background technique [0002] CDQ is a very important part of the coking process in the iron and steel industry. The current CDQ dust collectors mainly include gravity settling chambers, inertial dust collectors and cyclone dust collectors. The gravity settling chamber mainly removes the dust in the gas by gravity settling, which has low reliability and large volume; while the inertial dust collector with the upper retaining wall structure, which is the most commonly used at present, is prone to deformation due to the long-term thermal expansion of the upper retaining wall. When falling, the bricks are easy to fall off, which weakens the support ability of the body, and even causes the overall subsidence of the retaining wall, which not only affects the dust removal effect, but also ...

AI Technical Summary

Problems solved by technology

The gravity settling chamber mainly removes the dust in the gas through gravity settling, which has low reliability and large volume; while the most commonly used inertial dust collector with the upper retaining wall structure is prone to deformation due to the long-term thermal expansion of the upper retaining wall, the strength Falling, the bricks are easy to fall off, weakening the supporting capacity of the body, and even causing the overall sinking of the retaining wall, which not only affects the dust removal effect, but the blockage of the fallen bricks will also cause the blockage of the powder coke discharge device at the lower part of the dust collector, and even endanger CDQ in severe cases Coke normal production

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