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High-strength corrosion-resistant refractory castable

A refractory castable and corrosion-resistant technology, applied in the field of refractory materials, can solve the problems of low corrosion resistance, many raw materials, high production costs, etc., and achieve the effect of preventing corrosion

Active Publication Date: 2015-01-28
宁夏胜金水泥有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing castables have low corrosion resistance, consume a lot of raw materials for production, and have high production costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] (1) Preparation of castable:

[0010] 51 parts of aggregate, 30 parts of powder, 5 parts of binder, 6 parts of zirconia fiber and 8 parts of yttrium oxide, the weight parts of coarse aggregate, medium aggregate and fine aggregate in aggregate are 25 parts of coarse aggregate , 45 parts of medium aggregate, 30 parts of fine aggregate, the particle diameter of coarse aggregate is 3mm, the particle diameter of medium aggregate is 1mm, and the particle diameter of fine aggregate is 0.09mm. According to the above proportions, weigh each raw material and add water to accompany it to obtain a slurry with good fluidity, and test the physical properties after forming, curing and heat treatment.

[0011] (2) Physical performance test:

[0012] After drying at 1100℃×24h, the flexural strength is 11.8MPa, and the compressive strength is 88.6MPa;

[0013] After 1500℃×3H treatment, the flexural strength is 12.6MPa and the compressive strength is 98.3MPa.

Embodiment 2

[0015] (1) Preparation of castable:

[0016] 62 parts of aggregate, 25 parts of powder, 3 parts of binder, 5 parts of zirconia fiber and 5 parts of yttrium oxide, the parts by weight of coarse aggregate, medium aggregate and fine aggregate in aggregate are 25 parts of coarse aggregate , 45 parts of medium aggregate, 30 parts of fine aggregate, the particle diameter of coarse aggregate is 4mm, the particle diameter of medium aggregate is 1.5mm, and the particle diameter of fine aggregate is 0.9mm. According to the above proportions, weigh each raw material and add water to accompany it to obtain a slurry with good fluidity, and test the physical properties after forming, curing and heat treatment.

[0017] (2) Physical performance testing:

[0018] After drying at 1100℃×24h, the flexural strength is 11.3MPa, and the compressive strength is 90.4MPa;

[0019] After 1500℃×3H treatment, the flexural strength is 12.4MPa and the compressive strength is 96.3MPa.

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Abstract

The invention discloses a high-strength corrosion-resistant refractory castable which comprises the following raw materials in parts by weight: 50-60 parts of aggregate, 20-35 parts of powder, 5-6 parts of binding agent, 5-10 parts of zirconia fibers and 5-10 parts of yttrium oxide, wherein the aggregate consists of waste electroceramics, waste tiles and coal gangue; the powder consists of coal gangue, waste electroceramics, waste tiles, flint clay and silica powder; the binding agent refers to aluminate cement; and the additive refers to alpha-alumina fine powder.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, in particular to a high-strength corrosion-resistant refractory castable. Background technique [0002] At present, refractory castables are generally composed of refractory aggregates, powders, binders, admixtures, and solvents. The raw materials of refractory aggregates are generally magnesia, stone dome, perlite, spinel, etc. The existing castables have low corrosion resistance, many raw materials are consumed in production, and the production cost is high. Contents of the invention [0003] In view of this, aiming at the deficiencies of the prior art, the present invention provides a high-strength corrosion-resistant refractory castable that reduces environmental pollution, has low cost and is corrosion-resistant. [0004] A high-strength corrosion-resistant refractory castable, including aggregate, powder, binder, zirconia fiber and yttrium oxide, the parts by weight of the a...

Claims

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Application Information

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IPC IPC(8): C04B35/66
Inventor 穆祥王西来董伟胜
Owner 宁夏胜金水泥有限公司
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