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A steel fiber reinforced wear-resistant and explosion-proof castable

A technology of steel fiber and castables, which is applied in the field of castables for cement clinker production lines, can solve the problems of large shrinkage changes, poor thermal shock performance, poor erosion resistance, and poor wear resistance, so as to achieve not easy bursting and erosion resistance Strong performance and good wear resistance

Active Publication Date: 2020-04-17
北京兰海金诚耐火材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary high-alumina castables have poor thermal shock performance and erosion resistance, which seriously affects the service life. The shrinkage of the volume is particularly large after being affected by high temperature. great inconvenience

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Corundum 30Kg; Mullite powder 8Kg; Tabular alumina powder 9Kg; Alumina micropowder 6Kg; Silicon micropowder 5Kg; Pure calcium aluminate cement 6Kg; Steel fiber 3Kg; Kyanite 6Kg; Aluminum titanate 4Kg; Spinel 15Kg; composite explosion-proof agent 1Kg; water reducing agent 1Kg; antioxidant 1Kg.

[0026] Among them, the raw materials meet the following indicators: the particle size of corundum is 1-8mm; the particle size of mullite powder is ≤1mm; the particle size of tabular corundum powder is 325 mesh; the particle size of alumina powder is 1-3μm; The specific surface area of ​​calcium acid cement is 5500g / cm 2 ;Steel fiber diameter is 0.2-0.6mm, length is 20mm; kyanite particle size ≤0.2mm; aluminum titanate particle size ≤0.5mm; chromium oxide particle size ≤1mm; magnesium aluminum spinel particle size ≤12mm.

[0027] Among them, the composite explosion-proof agent is 1Kg in total, and is composed of: 0.8Kg of aluminum powder; 0.1Kg of explosion-proof fiber; and 0.1Kg...

Embodiment 2

[0032] Corundum 25Kg; Mullite powder 11Kg; Tabular alumina powder 11Kg; Alumina micropowder 8Kg; Silicon micropowder 4Kg; Pure calcium aluminate cement 7Kg; Steel fiber 2Kg; Kyanite 7Kg; Aluminum titanate 4Kg; Spinel 12Kg; composite explosion-proof agent 2Kg; water reducing agent 1Kg; antioxidant 1Kg.

[0033] Among them, the raw materials meet the following indicators: the particle size of corundum is 1-8mm; the particle size of mullite powder is ≤1mm; the particle size of tabular corundum powder is 325 mesh; the particle size of alumina powder is 1-3μm; The specific surface area of ​​calcium acid cement is 5500g / cm 2 ;Steel fiber diameter is 0.2-0.6mm, length is 20mm; kyanite particle size ≤0.2mm; aluminum titanate particle size ≤0.5mm; chromium oxide particle size ≤1mm; magnesium aluminum spinel particle size ≤12mm.

[0034] Among them, the composite anti-explosion agent is 2Kg in total, consisting of: 1.4Kg of aluminum powder; 0.3Kg of anti-explosion fiber; 0.3Kg of azodi...

Embodiment 3

[0039]Corundum 37Kg; Mullite powder 8Kg; Tabular alumina powder 9Kg; Alumina micropowder 7Kg; Silicon micropowder 6Kg; Pure calcium aluminate cement 5Kg; Steel fiber 1Kg; Kyanite 6Kg; Aluminum titanate 5Kg; Spinel 10Kg; composite explosion-proof agent 2Kg; water reducing agent 0.5Kg; antioxidant 0.5Kg.

[0040] Among them, the raw materials meet the following indicators: the particle size of corundum is 1-8mm; the particle size of mullite powder is ≤1mm; the particle size of tabular corundum powder is 325 mesh; the particle size of alumina powder is 1-3μm; The specific surface area of ​​calcium acid cement is 5500g / cm 2 ;Steel fiber diameter is 0.2-0.6mm, length is 20mm; kyanite particle size ≤0.2mm; aluminum titanate particle size ≤0.5mm; chromium oxide particle size ≤1mm; magnesium aluminum spinel particle size ≤12mm.

[0041] Among them, the composite explosion-proof agent is 2Kg in total, which is composed of: 1.2Kg of aluminum powder; 0.4Kg of explosion-proof fiber; and ...

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Abstract

The invention relates to a steel fiber enhanced anti-wear and anti-explosion castable which is prepared from the following raw materials in percentage by weight: 25 to 37 percent of carborundum, 8 to 12 percent of mullite powder, 8 to 12 percent of plate corundum powder, 6 to 10 percent of aluminum oxide fine powder, 3 to 7 percent of silica powder, 5 to 8 percent of pure calcium aluminate cement, 1 to 4 percent of steel fiber, 5 to 8 percent of kyanite, 3 to 5 percent of aluminum titanate, 3 to 5 percent of chromic oxide, 10 to 15 percent of magnesium aluminate spinel, 1 to 2 percent of a composite anti-explosion agent, 0.5 to 1 percent of a water reducer and 0.5 to 1 percent of an antioxidant. The steel fiber enhanced anti-wear and anti-explosion castable has the beneficial effects that a castable component in the prior art is improved; when being compared with common high-aluminum castable, by the adding of the steel fiber, the composite anti-explosion agent and the antioxidant, the obtained castable disclosed by the invention has the advantages of difficulty in explosion, high wear resistance and high erosion resistance property.

Description

technical field [0001] The invention relates to a castable for a cement clinker production line, in particular to a steel fiber reinforced wear-resistant and explosion-proof castable. Background technique [0002] At present, most of the castables used in the cement clinker production line are ordinary high-alumina castables. Ordinary high-alumina castables have poor thermal shock performance and erosion resistance, which seriously affects the service life. The shrinkage of the volume is particularly large after being affected by high temperature. Great inconvenience. Therefore, in order to better meet the higher requirements on the performance of castables, it is necessary to improve the thermal shock resistance, erosion resistance, and volume stability of ordinary castables. [0003] Aiming at the problems in the related technologies, no effective solution has been proposed yet. Contents of the invention [0004] Aiming at the above-mentioned technical problems in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
CPCC04B35/66
Inventor 刘春乐刘勇程殿勇徐彬
Owner 北京兰海金诚耐火材料有限责任公司