Silicon brick for 7.63-meter coke oven

Abstract

The invention relates to the corhart technical field, in particular to quartz bricks for 7.63m coking chamber. The invention overcomes the drawbacks of the prior quartz bricks for 7.63m coking chamber that as difference exists in the quality and choice of the corhart, the particle fineness and size distribution of the material are unreasonable, iron content is above the standard. The weight percentage compositions of the formulation of the invention are as follows: twenty-five percent to thirty-five percent of silica coarse power, forty-one percent to forty-seven percent of silica middle power, ten percent to twenty percent of fine powder formed by fifty percent of silicon and residual fifty percent of silica brick, and ten percent to twenty percent of residual silica brick. The material further comprises accessories of one point nine percent to two point one percent of mineralizer mixed by manganese powder and potassium feldspar according to a proportion of one to one, seven point five percent to eight point five percent of lime cream and zero point nine percent to one point one percent of paper pulp. The invention is superior over the prior quartz bricks of the prior 7.63m coking chamber in terms of physicochemical indexes of the silica brick made by the formulation of the invention, such as chemical composition, compressive strength, porosity and refractability, etc., particularly in terms of lower content of bengala ( Fe2O3). The invention has the advantages of rich source of the material, reasonable fineness of aggregate and size distribution.of particles. The quartz brick can meet the design and complication degree of and dimensions of shapes of bricks for the 7.63 coking chamber and is suitable for mass production of the coking chamber.

Description

technical field [0001] The invention relates to the technical field of refractory materials, in particular to a silica brick for a 7.63m coke oven. Background technique [0002] In the industrial field, large-scale coke ovens, wider and higher carbonization chambers, and increased coke production in single-hole carbonization chambers are the development directions of coke ovens. The height of the carbonization chamber in foreign countries has reached 7.63m. This is due to the fact that compared with the traditional small volume coke oven, the large-volume coke oven has less floor space, fewer coal towers, fewer operating personnel and fewer coke oven machinery and equipment, and less pollution from the coke oven. At the same time, in order to adapt to the large-scale coke oven, ensure coking production and prolong the service life of coke oven, higher requirements are put forward for the quality of refractory materials for coke oven, and the design, complexity and shape of t...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the defects of the existing 7.63m coke oven silica bricks, which often fail to meet people's expectations due to the differences in the quality and selection of refractory raw materials, the fineness of raw material particles, the unreasonable size distribution, and the iron content exceeding the standard, the present invention provides a 7.63m silica brick for coke oven