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High-strength wear-resistant and fireproof pouring material

A refractory castable, high-strength technology, applied in the field of refractory materials, can solve problems such as increasing costs and wasting resources

Active Publication Date: 2014-02-05
NINGXIA TIANZONG HONGGUANG COGENERATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But for refractory materials used at medium and low temperatures, this not only wastes resources, but also increases costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] (1) Preparation of castable:

[0012] 3.0~2.0mm coarse aggregate 20, 1.5mm~1mm medium aggregate 35, 0.5~0.01mm fine aggregate 15, binder 5, silicon micropowder 5, alumina micropowder 15, water 5. According to the above ratio, weigh and mix the raw materials to obtain a slurry with good fluidity, and test the physical properties after forming, curing and heat treatment.

[0013] (2) Physical performance test:

[0014] After drying at 110℃×24h, the flexural strength is 22.4MPa, and the compressive strength is 164.7MPa;

[0015] After 1100℃×3H treatment, the flexural strength is 18.4MPa, and the compressive strength is 149.5MPa;

[0016] After 1350℃×3H treatment, the flexural strength is 19.4MPa, and the compressive strength is 161.3MPa.

Embodiment 2

[0018] (1) Preparation of castable:

[0019] Use 22% of coarse aggregate, 38% of medium aggregate, 20% of fine aggregate, 7% of binder, 2% of silica powder, 8% of alumina powder, and 3% of water. According to the above ratio, weigh and mix the raw materials to obtain a slurry with good fluidity, and test the physical properties after forming, curing and heat treatment.

[0020] (2) Physical performance testing:

[0021] After drying at 110℃×24h, the flexural strength is 20.8MPa, and the compressive strength is 150.4MPa;

[0022] After 1100℃×3H treatment, the flexural strength is 15.8MPa, and the compressive strength is 127.4MPa;

[0023] After 1350℃×3H treatment, the flexural strength is 15.7MPa, and the compressive strength is 145.7MPa.

Embodiment 3

[0025] (1) Preparation of castable:

[0026] Use 25% of coarse aggregate, 25% of medium aggregate, 20% of fine aggregate, 10% of binder, 3% of silica powder, 15% of alumina powder, and 2% of water. According to the above ratio, weigh and mix the raw materials to obtain a slurry with good fluidity, and test the physical properties after forming, curing and heat treatment.

[0027] (2) Physical performance testing:

[0028] After drying at 110℃×24h, the flexural strength is 19.8MPa and the compressive strength is 152.8MPa;

[0029] After 1100℃×3H treatment, the flexural strength is 15.2MPa, and the compressive strength is 131.4MPa;

[0030] After 1350℃×3H treatment, the flexural strength is 18.7MPa, and the compressive strength is 155.3MPa.

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Abstract

The invention discloses a high-strength wear-resistant and fireproof pouring material comprising the following raw materials in parts by weight: 20-25 parts of a coarse aggregate, 35-40 parts of a medium-fine aggregate, 15-20 parts of a fine aggregate, 5-10 parts of a binding agent, 5-10 parts of silicon micropowder, 10-15 parts of aluminum oxide micropowder and 1-5 parts of water, wherein the coarse aggregate is special-grade alumina, the medium-fine aggregate comprises silicon carbide and mullite, the fine aggregate is special-grade alumina, and the binding agent is prepared from the following components in parts by weight: 25-35 parts of sodium silicate, 15-25 parts of magnesium silicate and 30-60 parts of sodium hexametahposphate.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a high-strength wear-resistant refractory castable with good wear resistance. Background technique [0002] Compared with qualitative refractory products, unshaped refractory materials represented by refractory castables have the advantages of short process flow, low production energy consumption and cost, convenient use, wide application range, integrity and good use effect, so they are widely used in the world. It has developed rapidly, and its proportion in the whole refractory material is getting higher and higher. In some countries with advanced refractory technology, the output of unshaped refractories has approached or even exceeded the output of shaped products. For example, the current output of unshaped refractory materials in Japan accounts for about 60% of the total refractory materials; in the United States, it is about 50%; in Britain, Germ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
Inventor 穆祥王西来董伟胜刘文艳解仁刘朝晖苏新国王淑娟
Owner NINGXIA TIANZONG HONGGUANG COGENERATION TECH
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