Silicon brick for 7-meter coke oven

A technology for silica bricks and coke ovens, applied in the field of silica bricks for 7m coke ovens, can solve problems such as failure to meet national standards, differences in selection, unreasonable size distribution, etc., and achieve a wide range of raw material sources, aggregate fineness and particle size well-distributed effect

Active Publication Date: 2008-02-06
山西盂县西小坪耐火材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a silica brick for 7m coke oven in order to solve the defects that the existing silica bricks for 7m coke oven often fail to meet the national standard due to the quality and selection of refractory raw materials, differences in the selection of refractory raw materials, the fineness of raw material particles, and unreasonable size distribution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Silica bricks for 7m coke oven, expressed in weight percentage, the raw material formula contains 33% of coarse silica powder, 42% of medium silica powder, 11% of fine powder and residual silica consisting of 50% of silica and 50% of residual silica bricks Brick 14%, SiO in above silica 2 The content is not less than 97.5%. When the coke oven of the present invention is put into production for the first time, the residual silica brick can also be the residual silica brick produced by other furnace types. The silica coarse powder is composed of three parts, wherein The silica with a particle size range of 1-3mm accounts for 71%, the particle size range of 1-0.088mm accounts for 28%, and the particles with a particle size range of 3 , pulp 1.1%, its specific gravity is 1.20g / cm 3 , PH is 5;

[0017] Add coarse silica powder, medium silica powder, fine powder and residual silica bricks into the wet mill, then add mineralizer and dry mix for 4 minutes, the mineralizer is b...

Embodiment 2

[0019] Silica bricks for 7m coke oven, expressed in weight percentage, the raw material formula contains 28% of silica coarse powder, 43% of silica medium powder, 18% of fine powder and residual silica consisting of 50% of silica and 50% of residual silica bricks Brick 11%, SiO in above silica 2 The content is not less than 97.5%. The residual silica brick is the residual silica brick produced by the coke oven of the present invention. The silica coarse powder is composed of three parts, wherein the silica with a particle size range of 1-3mm accounts for 65%, 34% of particles with a particle size range of 1-0.088mm, 1% of particles with a particle size range of 3 , pulp 1.05%, its specific gravity is 1.22g / cm 3 , PH is 4;

[0020] Add coarse silica powder, medium silica powder, fine powder and residual silica bricks into the wet mill, then add mineralizer and dry mix for 4 minutes, the mineralizer is broken into particles with a particle size of less than 0.088mm, then add li...

Embodiment 3

[0022] Silica bricks for 7m coke oven, expressed in weight percentage, the raw material formula contains 30% of coarse silica powder, 45% of medium silica powder, 15% of fine powder and residual silica consisting of 50% of silica and 50% of residual silica bricks Brick 10%, SiO in above silica 2 The content is not less than 97.5%. When the coke oven of the present invention is put into production for the first time, the residual silica brick can also be the residual silica brick produced by other furnace types. The silica coarse powder is composed of three parts, wherein Silica with a particle size range of 1-3mm accounts for 68%, particles with a particle size range of 1-0.088mm account for 30%, and particles with a particle size range of 3, pulp 0.95%, its specific gravity is 1.21g / cm 3 , PH is 5;

[0023] Add coarse silica powder, medium silica powder, fine powder and residual silica bricks into the wet mill, then add mineralizer and dry mix for 5 minutes, the mineralizer ...

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Abstract

The invention relates to the fire resistant material technical field, in particular to a silica brick of 7m for coke oven, which solves the problem of unreasonable distribution of the fineness and size of the particles of raw materials caused by the differences in quality and selection of the raw materials. The formulation of the raw materials comprises 25 to 35 percent of silex cribble powder, 41 to 47 percent of silex medium powder, 10 to 20 percent of fine powder consisting of 50 percent of silex and 50 percent of incomplete silex brick, 10 to 20 percent of incomplete silex brick, accessories which comprise 1.9 to 2.1 percent of mineralizer comprising manganese powder, iron phosphorus powder and potassium feldspar according to the proportion of 0.5 to 0.5 to1, 7.5 to 8.5 percent of line cream and 0.9 to 1.1 percent of pulp. The physics and chemistry index adopted by the formulation of the invention is higher than the national standard. The invention has the advantages of wide raw material source, reasonable distribution of fineness of aggregate and grain size. The produced silica brick is completely in accordance with requirements of design of brick shape, complexity and outside measurement of the coke oven brick and adaptability to the requirement of large-scale production of coke oven .

Description

technical field [0001] The invention relates to the technical field of refractory materials, in particular to a silica brick for a 7m 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 7m. This is due to the fact that compared with the traditional small volume coke oven, the large volume coke oven has less floor area, fewer coal towers, fewer operating personnel and fewer coke oven machinery and equipment, and less pollutants in 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 the coke oven, higher requirements are put forward for the quality of refractory materials for coke ovens, and the design, complexity and overall size...

Claims

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Application Information

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IPC IPC(8): C04B35/66C04B35/14
Inventor 武本有武根怀郝良军韩八斤尹建斌
Owner 山西盂县西小坪耐火材料有限公司
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