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High-strength alkali-resisting refractory castable

A refractory castable and alkali-resistant technology, applied in the field of refractory materials, can solve the problems of environmental pollution, low alkali resistance and high production cost, and achieve the effects of good chemical stability, small expansion coefficient and corrosion resistance.

Inactive Publication Date: 2015-01-28
NINGXIA TIANZONG HONGGUANG COGENERATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current castables have low alkali resistance, consume a lot of raw materials, and have high production costs. On the other hand, waste electric porcelain, waste sanitary ware, waste floor tiles, waste glazed tiles, coal gangue, etc. have caused great pollution to the environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] (1) Preparation of castable:

[0011] 51 parts of aggregate, 38 parts of powder, 5 parts of binder, 6 parts of additive, the parts by weight of coarse aggregate, medium aggregate and fine aggregate in aggregate are 30 parts of coarse aggregate, 30 parts of medium aggregate, 40 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 0.088mm. 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.

[0012] (2) Physical performance test:

[0013] After drying at 110℃×24h, the flexural strength is 11.5MPa and the compressive strength is 85.8MPa;

[0014] After 1100℃×3H treatment, the flexural strength is 12.1MPa and the compressive strength is 91.3MPa.

Embodiment 2

[0016] (1) Preparation of castable:

[0017] 62 parts of aggregate, 30 parts of powder, 3 parts of binder, 5 parts of additive, the parts by weight of coarse aggregate, medium aggregate and fine aggregate in aggregate are 30 parts of coarse aggregate, 30 parts of medium aggregate, 40 parts of fine aggregate, the particle diameter of coarse aggregate is 4mm, the particle diameter of medium aggregate is 2mm, and the particle diameter of fine aggregate is 0.9mm. 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.

[0018] (2) Physical performance testing:

[0019] After drying at 110℃×24h, the flexural strength is 11.6MPa, and the compressive strength is 88.3MPa;

[0020] After 1100℃×3H treatment, the flexural strength is 13.1MPa and the compressive strength is 93.2MPa.

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Abstract

The invention relates to a high-strength alkali-resisting refractory castable which is prepared from the following raw materials in parts by weight: 51-62 parts of aggregates, 30-38 parts of powder, 3-5 parts of an adhesive and 5-6 parts of an additive, wherein the aggregates are prepared from waste electroceramics, waste tiles and coal gangues; the powder is prepared from coal gangues, waste electroceramics, flint clays, silicon micropowder, aluminum oxide and magnesium oxide; the adhesive is aluminate cement; and the additive is alpha-aluminum oxide fine powder.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, in particular to a high-strength alkali-resistant refractory castable. 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, Germany, France and other countries, it ...

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 NINGXIA TIANZONG HONGGUANG COGENERATION TECH
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