Construction method for overhaul of CDQ coke oven lining
A CDQ coke oven and construction method technology, which is applied in coke ovens, petroleum industry, coke cooling, etc., can solve the problems affecting the coke CDQ treatment in coking plants, high construction cost, and long construction period, so as to improve the efficiency of overhaul , Reduce the cost of overhaul and shorten the time period
Inactive Publication Date: 2018-04-17
PANGANG GRP ENG TECH
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Problems solved by technology
This method has a long construction period and high construction cost, which will seriously affect the CDQ treatment of coke in coking plants or steel mills
Method used
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[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0028] like figure 2 As shown, the CDQ coke oven includes a furnace body and a furnace chamber 7 formed by the furnace body. The furnace body is composed of a steel furnace shell and a lining masonry attached to the inner side of the furnace shell. The furnace shell is a cylindrical steel structure welded by steel plates, which includes three parts: the upper pre-storage section 2, the middle annular air passage section, and the lower cooling section 5; the inner lining masonry is divided from top to bottom according to the structural characteristics. It is the upper cone section 1, the pre-stored section 2, the annular air duct section 301, the ring beam section 302, the chute area 4, and the cooling section 5, wherein the ring beam section 302 and the annular air duct section 301 above the ring beam section 302 are called Inner Ring Section 3. The...
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The invention discloses a construction method for heavy maintenance of a coke dry quenching furnace liner. The method comprises the following five steps: waste and old liner masonry above an inclined channel segment is dismantled from top to bottom; a prestoring segment is built by laying bricks, and the waste and old liner masonry is transported outward; an upper cone-shaped segment is built by laying bricks, and a cooling segment dismantling scaffold is erected; the inclined channel segment is built by laying bricks, and the cooling segment is dismantled; an inner ring segment is built by laying bricks, and the cooling segment is built by laying bricks. The construction method for heavy maintenance of the coke dry quenching furnace liner is carried out for alternately dismantling the old liner and building the new liner by laying bricks, so that heavy maintenance efficiency of the coke dry quenching furnace is further improved, heavy maintenance cost is reduced, and influences of the coke dry quenching furnace heavy maintenance on dry quenching processing of coke in coking plants or steel mills are reduced.
Description
technical field [0001] The invention relates to the technical field of industrial kilns, and in particular relates to a construction method for overhauling the inner lining of a CDQ coke oven. Background technique [0002] Coke used in blast furnace smelting, casting and gasification is obtained by placing bituminous coal in a carbonization chamber isolated from air, heating it to 950-1050°C, and going through stages of drying, pyrolysis, melting, bonding, solidification, and shrinkage. The coke released from the carbonization chamber is red coke with a temperature close to 1000°C, which needs to be extinguished. Compared with wet coke quenching, dry coke quenching has the advantages of good coke quality, less environmental pollution, and effective recovery of high-temperature red coke sensible heat. . [0003] The coke dry quenching oven used for dry coke quenching includes a furnace body and a furnace chamber surrounded by the furnace body. The furnace body includes a fur...
Claims
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IPC IPC(8): C10B39/02
CPCC10B39/02
Inventor 李景奎吴荣善冯元中陈梦逢潘子祥万利刘臻胡彪
Owner PANGANG GRP ENG TECH