Coke oven coke barriering and dust removal method

Abstract

The invention discloses a coke oven coke barriering and dust removal method, which is characterized by comprising the following steps: before the removal of coke, a dust removal system fan is started to form negative pressure suction state at a dust suction hood opening; during the removal of the coke, smoke is sucked by a dust suction hood and delivered for Venturi scrubbing, after the scrubbing, the smoke enters a dehydrating tower for dehydrating, wherein the smoke is uplifted by collapsing red coke above a coke barrier gate and below a coke quenching car; the dehydrated gas is sent to a dust suction hood lower opening by a fan via a pipe to be used as a wind curtain wall; smoke dust grain-containing sewage discharged from the Venturiand the dehydrating tower enters a solid-liquid separator, a separated solid enters a double opening material bucket to be discharged regularly at positioned location, and a separated liquid is injected into a sewage tank for outputting. The coke oven coke barriering and dust removal method can prevent pollution of the environment, and is small in investment and low in operating cost.

Description

technical field [0001] The invention belongs to a dedusting method, in particular to a coke blocking and dedusting method for a coke oven. Background technique [0002] When the coke oven is unloading, the red coke collapses into the coke quenching basket through the coke grid, generating a lot of heat and raising smoke and dust. In the prior art, the ground station filter bag dust removal process is generally used, and the filtered exhaust gas meets the environmental protection emission requirements; there is also a CDQ process, which is to discharge the red coke into the coke frame at a fixed point, and move the coke frame into the CDQ tower. Nitrogen is used to extinguish the red coke and recycle the heat. The one-time investment of the above two processes is too high, and the operating cost is too high, so it is difficult to popularize in the coking industry. Contents of the invention [0003] Aiming at the deficiencies of the prior art above, the present invention pr...

AI Technical Summary

Problems solved by technology

In the prior art, the ground station filter bag dust removal process is generally used, and the filtered exhaust gas meets the environmental protection emission requirements; there is also a CDQ process, which is to discharge the red coke into the coke frame at a fixed point, and move the coke frame into the CDQ tower. Nitrogen is used to extinguish the red coke and recycle the heat. The one-time investment of the above two processes is too high, and the operating cost is too high, so it is difficult to popularize in the coking industry.

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