Composite building structure of coke oven heat accumulation chamber checker brick

Abstract

The invention discloses a composite building structure of coke oven heat accumulation chamber checker bricks. The composite building structure comprises clay bricks, wherein the lower part of a heat accumulation chamber is made of the clay bricks; the layer number of the heat accumulation chamber accounts for 50-80% of the total building layer number of the heat accumulation chamber; checker bricks made of low-aluminum mullite and andalusite are built on the clay bricks; the layer number of the checker bricks accounts for 20-50% of the total building number of the heat accumulation chamber; the low-aluminum mullite refers to mullite of which the aluminum oxide content is smaller than 60%. The high temperature deformation resistance of the composite building structure of the coke oven heataccumulation chamber checker bricks can be increased by 100-200 DEG C, the service life can be greatly prolonged, the heat exchange efficiency of the heat accumulation chamber can be also improved, agood effect can be achieved for solving low temperature problems of a coke oven heat accumulation chamber of 7.63m, the coking time of a coal layer of each carbonization chamber can be shortened by 1-3 hours, and the composite building structure has a reference function for checker brick structures and materials of other similar coke oven heat accumulation chambers.

Description

technical field [0001] The invention relates to the technical field of coke ovens in the coking industry, and specifically belongs to a composite masonry structure of checker bricks in coke oven regenerators. Background technique [0002] The 7.63m coke oven is a reheating super-large-volume coke oven developed by Uhde Company of Germany that combines segmental heating and exhaust gas circulation. The annual output of dry whole coke is 2.13 million t / a. Transform design. A 7.63m coke oven has 30,000 tons of various refractory materials and more than 1,100 types of special-shaped bricks. According to the different working conditions of each part of the coke oven, silica bricks, semi-silica bricks, clay bricks, and high-alumina heat insulation materials are selected respectively. Bricks, sillimanite bricks, red bricks and cast blocks and other types of refractory masonry. In the basic design of Wood Company, the main refractory material of the 7.63m coke oven adopts the Germ...

AI Technical Summary

Problems solved by technology

[0015] The present invention overcomes the deficiencies in the prior art, and provides a method of composite masonry by using clay checker bricks and high-performance low-alumina mullite andalusite checker bricks in the coke oven regenerator to improve the efficiency of the coke oven regenerator. The high temperature performance of the upper checker bricks reduces the problem that the heat exchange efficiency is affected by the deformation of the checker bricks