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Clay bricks for 6.25M coke oven

A clay brick and coke oven technology, which is applied in the field of refractory materials, can solve the problems of excessive iron content, selection gap, and failure to meet the physical and chemical indicators of clay bricks for 6.25m large-volume coke ovens, and achieve aggregate fineness and particle size The effect of reasonable distribution and wide source of raw materials

Inactive Publication Date: 2018-03-23
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] However, due to the defects of 6.25m clay bricks for coke ovens at home and abroad due to the quality and selection of refractory raw materials, the fineness of raw material particles, unreasonable size distribution, excessive iron content and other defects, the clay bricks for 6.25m large-volume coke ovens Physical and chemical indicators often fail to meet people's expectations

Method used

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  • Clay bricks for 6.25M coke oven
  • Clay bricks for 6.25M coke oven
  • Clay bricks for 6.25M coke oven

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The raw material formula contains 35 parts of bauxite clinker coarse powder, 20 parts of bauxite clinker medium powder, 5 parts of bauxite clinker fine powder and 30 parts of soft clay fine powder.

[0024] Al in the above bauxite clinker 2 o 3 Content not less than 45%, Fe 2 o 3 ≤1.8%, soft clay AL 2 o 3 Content not less than 35%, Fe 2 o 3 ≤1.5%,

[0025] Bauxite clinker coarse powder is composed of three parts, of which 74% have a particle size range of 1-3mm, and 24% have a particle size range of 1-0.088mm. Particle size range <0.088mm accounted for 1%;

[0026] Bauxite clinker powder is composed of three parts, among which the particle size range of 1-3mm accounts for 2%, the particle size range of 1-0.088mm accounts for 64%, and the particle size range of <0.088mm 24%;

[0027] The bauxite clinker fine powder is composed of two parts, of which the particle size range of 1-0.088mm accounts for 15%, and the particle size range of <0.088mm accounts for 85%; ...

Embodiment 2

[0030] The raw material formula contains 25 parts of bauxite clinker coarse powder, 30 parts of bauxite clinker medium powder, 10 parts of bauxite clinker fine powder and 40 parts of soft clay fine powder.

[0031] Al in the above bauxite clinker 2 o 3 The content is not lower than 45%, Fe2O3≤1.8%, soft clay AL 2 o 3 The content is not lower than 35%, Fe2O3≤1.5%,

[0032] Bauxite clinker coarse powder is composed of three parts, of which 64% have a particle size range of 1-3mm, and 34% have a particle size range of 1-0.088mm. Particle size range <0.088mm accounted for 2%;

[0033] Bauxite clinker powder is composed of three parts, among which the particle size range of 1-3mm accounts for 1%, the particle size range of 1-0.088mm accounts for 74%, and the particle size range of <0.088mm 34%;

[0034] The bauxite clinker fine powder is composed of two parts, among which the particle size range of 1-0.088mm accounts for 5%, and the particle size range of <0.088mm accounts fo...

Embodiment 3

[0037] The raw material formula contains 30 parts of bauxite clinker coarse powder, 25 parts of bauxite clinker medium powder, 7 parts of bauxite clinker fine powder and 35 parts of soft clay fine powder.

[0038] Al in the above bauxite clinker 2 o 3 Content not less than 45%, Fe 2 o 3 ≤1.8%, soft clay AL 2 o 3 Content not less than 35%, Fe 2 o 3 ≤1.5%,

[0039] The bauxite clinker coarse powder is composed of three parts, of which 69% have a particle size ranging from 1 to 3 mm, and 29% have a particle size ranging from 1 to 0.088 mm. Particle size range <0.088mm accounted for 1.5%;

[0040] The bauxite clinker powder is composed of three parts, among which the particle size range of 1-3mm accounts for 1.5%, the particle size range of 1-0.088mm accounts for 69%, and the particle size range of <0.088mm 29%;

[0041] The bauxite clinker fine powder is composed of two parts, of which 10% are in the particle size range of 1-0.088mm, and 90% are particles in the particl...

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Abstract

The invention belongs to the technical field of refractory materials, and particularly relates to clay bricks for a 6.25M coke oven. The clay bricks are composed of, by weight, 25-35 parts of bauxiteclinker coarse powder, 20-30 parts of bauxite clinker medium powder, 5-10 parts of bauxite clinker fine powder and 30-40 parts of soft clay fine powder. Physiochemical indexes like chemical analysis,pressure-resistance strength, porosity and refractoriness of the clay bricks prepared according to a formula are better than those of existing clay bricks for 6.25m coke ovens, and especially Fe2O3 content is obviously low. The clay bricks have the advantages of extensive raw material source and reasonable aggregate fineness and particle size distribution, meet requirements on design, complexity and appearance size of coke oven brick type and are suitable for requirements of coke oven large-scale production.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, in particular to a 6.25M clay brick for coke ovens. Background technique [0002] In the industrial field, large-scale coke ovens, wider and higher carbonization chambers, and increased coke production in single-hole chambers are the development directions of coke ovens. The height of the carbonization chamber in foreign countries has reached 6.25m. This is because the large-volume coke oven has less floor space than the traditional small-volume coke oven, and the number of coal towers and coke oven machinery and equipment in operation and the number of operators are small. The pollution of 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 the coke oven brick...

Claims

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Application Information

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IPC IPC(8): C04B35/101
CPCC04B35/101C04B2235/349C04B2235/96
Inventor 郝良军秦迎军张瑞忠
Owner 山西盂县西小坪耐火材料有限公司
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