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Embedding and sintering method for production of ceramsite from raw materials of red mud and tile waste

A technology for polishing brick waste and ceramic tiles, which is applied in the production of ceramic materials, clay products, other household appliances, etc., can solve the problems of sintering equipment operating environment and personal safety adverse effects, few research reports, etc., to ensure mechanical properties, and a wide range of sources. , the effect of improving efficiency

Inactive Publication Date: 2015-09-09
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of rapid cooling technology has adverse effects on sintering equipment, operating environment and personal safety.
The method of embedding and sintering the raw ceramsite by adding fillers can greatly limit this kind of reaction between ceramsites, but it is necessary to limit the reaction between ceramsites and fillers at the same time at high temperature, and there are few related research reports

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Ingredients according to mass percentage: red mud 20%, tile green waste 13%, polished tile waste 10%, tile edging material 25%, kaolin 10%, quartz 22%, according to the water-material ratio of 80:100 Add water in the ratio, mix and ball mill for 2 hours at a speed of 400 revolutions per minute on a planetary ball mill;

[0017] (2) The slurry ground in step (1) was dried at 130oC for 1 hour and then crushed. After obtaining the dry powder, ceramsite was produced manually, and after sieving, the remaining material of -40 mesh + 60 mesh was taken;

[0018] (3) Use quartz granules as embedding filler, mix the raw ceramsite prepared in step (2) with -100 mesh quartz granules according to the mass ratio of 0.2:1, and then burn at 1170oC for 15 minutes After cooling with the furnace, sieve out the quartz granules to obtain ceramsite made of red mud and ceramic tile waste.

Embodiment 2

[0020] (1) Ingredients according to mass percentage: red mud 15%, tile green waste 13%, polished tile waste 10%, tile edging material 25%, kaolin 10%, quartz 27%, according to the ratio of water to material 80:100 Add water in the ratio, mix and ball mill for 2 hours at a speed of 400 revolutions per minute on a planetary ball mill;

[0021] (2) Dry the slurry ground in step (1) at 130oC for 1 hour and then crush it. After obtaining the dry powder, use a pelletizer to produce raw ceramsite, and take the sieve residue of -40 mesh + 60 mesh;

[0022] (3) Use -100 mesh quartz and -100 mesh magnesia mixed pellets at a ratio of 4:1 as the embedding filler, mix the raw ceramsite and the embedding filler at a ratio of 0.2:1, and pass through at 1170oC Firing for 15 minutes, after cooling with the furnace, sieve out the embedding filler to obtain ceramsite with red mud and tile waste as raw materials.

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Abstract

An embedding and sintering method for production of ceramsite from raw materials of red mud and tile waste belongs the technical field of ceramsite. The method is characterized by comprising the steps of: preparing raw materials containing 5-25% of red mud, 13% of tile green compact waste, 10-20% of polished tile waste, 25% of tile edging material, 10% of kaolin and 17-37% of quartz; milling for 2 h, drying the slurry, and producing the obtained powder through a pelletizer or manual way into raw ceramsite; mixing the raw ceramsite with an embedding filler in the mass ratio of 0: 1 to 0.4: 1, wherein the embedding filler is a mixed pellet containing quartz and magnesium oxide in the mass ratio of 1:0-5:1; sintering at 1170 DEG C for 15 minutes; cooling in the by furnace; and screening the embedding filler to obtain ceramsite using raw materials of red mud and tile waste. The method uses a large amount of red mud and tile waste material; the embedding filler after sintering and screening is reusable; and the obtained ceramsite using raw materials of red mud and tile waste has uniform granularity, high intensity and adjustable density.

Description

technical field [0001] The invention discloses a method for producing ceramsite by using red mud and ceramic tile waste as raw materials, embedding and sintering, and belongs to the technical field of ceramsite. Background technique [0002] Ceramsite is widely used in filling, support column carrier and functional carrier. In the existing ceramsite technology, ceramsite is mainly produced from natural materials such as clay, expanded perlite or argillaceous rock. The research on ceramsite production technology with red mud and ceramic tile waste as the main raw materials is also being carried out, aiming to explore the possibility of developing and utilizing waste from the alumina industry and ceramic tile industry. After all, red mud and ceramic tiles all over the world The discharge of industrial waste is too high. Taking red mud as an example, the world produces about 60 million tons per year, and my country alone produces 700-1000 tons per year. The volatile components ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132
CPCY02P40/60
Inventor 李成峰逯鹏韩勇勇丁锐姚奇恒刘俊成袁东峰
Owner SHANDONG UNIV OF TECH
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