A technological process for flue gas desulfurization transformation of coke oven without continuous furnace

Abstract

The invention relates to a coke oven flue gas desulfurization reform process without coke oven shutdown. The coke oven flue gas desulfurization reform process without coke oven shutdown comprises the following steps that firstly, regions on the two sides of a concrete flue are excavated, and trepanning construction is carried out on an external joint of a first flue; secondly, concrete cutting is carried out; thirdly, after cutting is completed, whether cut and formed concrete blocks disengage from the flue or not is checked; whether the air drafting phenomenon at a gap is serious or not is observed, if yes, putty is used for temporary sealing, and then a sling is installed; fourthly, machined flue connection pieces fall onto the concrete flue along a cutting line; fifthly, the concrete blocks which are cut and formed originally are slung; sixthly, a transverse blind plate slides into the concrete flue; seventhly, the flue connection pieces are fixed to the concrete flue; eighthly, expansive cement is used for carrying out dense treatment on leaking positions of joints of the concrete flue and the flue connection pieces, trepanning construction is carried out on an external joint of a second flue, and the second step, the third step, the fourth step, the fifth step, the sixth step, the seventh step and the eighth step are executed again; ninthly, a vertical blind plate is installed in the concrete flue. The process for reforming coke oven flue gas without coke oven shutdown is safe and high in reliability.

Description

technical field [0001] The invention relates to a non-stop coke oven flue gas desulfurization modification process flow, and belongs to the technical field of coke oven flue gas desulfurization modification technology. Background technique [0002] With the gradual improvement of environmental protection requirements, the standard of sulfur content in flue gas emissions is also gradually increasing. Newly built flue gas discharge systems are generally equipped with desulfurization links, while for old flue gas discharge systems without desulfurization process links, it is necessary to carry out Retrofitting, the existing technology is very difficult for the retrofitting of the flue gas discharge system, and generally the furnace needs to be shut down during the retrofitting process, which brings considerable economic losses to the manufacturer. Therefore, how to provide a safe and highly reliable technological process for reforming non-stop coke oven flue gas has become an u...

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Problems solved by technology

[0002] With the gradual improvement of environmental protection requirements, the standards for sulfur content in flue gas emissions are also gradually increasing. Newly built flue gas discharge systems are generally equipped with desulfurization links, while for old flue gas discharge systems without desulfurization process links, it is necessary to Retrofitting, the existing technology is very difficult for the retrofitting of the flue gas discharge system, and generally the furnace needs to be shut down during the retrofitting process, which brings considerable economic losses to the manufacturer

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