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Wear resistant pouring material and method of preparing same

A technology of castables and porcelain particles, which is applied in alkali and chlorine resistance, can solve the problems of refractory damage and volatilization, and achieve the effects of enhanced strength, good wear resistance coefficient and reduced production cost

Active Publication Date: 2009-01-07
无锡远能耐火材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chloride-containing waste is incinerated. When the temperature is above 800-850°C, chlorine is converted into hydrogen chloride. Refractory materials have good stability to acid gases. High-alumina powder refractory materials basically have resistance to chlorine erosion, but refractory materials The iron and calcium in it are easy to react with chlorine to generate liquid FeCl 3 , CaCl 2 , easy to volatilize and cause damage to refractory materials, so low iron and low calcium are the key

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Wear-resistant castables, 15 parts of 0-1mm porcelain particles, 17 parts of 1-5mm porcelain particles, 50 parts of 1-5mm calcined andalusite particles, 4 parts of 1000 mesh α-alumina micropowder, 4 parts of silicon micropowder, 4 parts Pure calcium aluminate cement, 0.16 parts of water reducer, silicic acid agent, and 5 parts of water are mixed and stirred evenly, vibrated and compacted at the furnace site, and used after conventional curing and baking.

Embodiment 2

[0025] Wear-resistant castables, 22 parts of 0-1mm porcelain particles, 10 parts of 1-5mm porcelain particles, 35 parts of 1-5mm calcined andalusite particles, 6 parts of 1000 mesh α-alumina micropowder, 5 parts of silicon micropowder, 5 parts Pure calcium aluminate cement, 0.15 parts of water reducer, silicate agent, and 5.2 parts of water are mixed and stirred evenly, vibrated and compacted at the masonry site, and used after conventional curing and baking.

Embodiment 3

[0027] Wear-resistant castables, 18 parts of 0-1mm porcelain particles, 17 parts of 1-5mm porcelain particles, 55 parts of 1-5mm calcined andalusite particles, 4 parts of 1000 mesh α-alumina micropowder, 4.5 parts of silicon micropowder, 4.5 parts Pure calcium aluminate cement, 0.1 part of water reducing agent silicate agent, 5.5 parts of water are mixed and stirred evenly, vibrated and compacted at the masonry site, and used after conventional curing and baking.

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PUM

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Abstract

The invention discloses a wearable castable material, which comprises the following components by weight: 15 to 25 parts of porcelain granule of 0 to 1mm; 10 to 20 parts of porcelain granule of 1 to 5mm; 35 to 55 parts of calcined andalusite granule of 1 to 5mm; 4 to 6 parts of 1000-mesh Alpha aluminum micro-powder; 3 to 5 parts of silicon micro-powder; 4 to 5 parts of pure calcium aluminate cement; 0.1 to 0.3 parts of a water reducer of silicate type; 5 to 7 parts of water. The invention further discloses a preparation method of the wearable castable material. The wearable castable material has high alkali-proofness, resistance to erosion of chlorine, fire resistance, and abrasive resistance, and is applicable for masonry of various large cement rotary furnaces and destructors.

Description

technical field [0001] The invention belongs to the field of refractory materials, in particular to an alkali-resistant, chlorine-resistant and wear-resistant castable for large cement rotary kilns and garbage incinerators and a manufacturing method thereof. Background technique [0002] The slope at the kiln tail of the large-scale cement rotary kiln, the vertebra of the calciner and the vertebra of each cylinder of the preheater, etc., have to withstand the rapid cooling impact of the kiln shutdown due to high thermal load, and the castables used in these parts must also have high Excellent temperature resistance, good alkali resistance, chlorine resistance, wear resistance and thermal shock stability. Reaction of High Alumina Refractories with Alkali to Produce β-Al 2 o 3 , The expansion caused by the reaction destroys the tissue; the clay refractory reacts with alkali to produce nepheline and other low-melting compounds, which cause the refractory to melt. [0003] Wh...

Claims

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Application Information

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IPC IPC(8): C04B28/06C04B35/66
Inventor 姚伯洪路盘根王建杰徐雷均沈盘方顾永刚沈国均
Owner 无锡远能耐火材料有限公司
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