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Porcelain tile and preparation method thereof, and purpose of residue of aluminium extraction from fly ash

A technology for extracting aluminum and porcelain bricks from fly ash is applied in other household appliances, applications, clay products and other directions, which can solve the problems of air and water environment pollution, endanger the health of residents, waste land resources and other problems, and achieve the elimination of environmental pollution, The effect of reducing the cost of raw materials and expanding the source of raw materials

Active Publication Date: 2015-01-07
CHINA SHENHUA ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The discharge of these residues will occupy a large amount of land and waste land resources; it also causes serious environmental pollution to the atmosphere and water, endangering the health of nearby residents

Method used

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  • Porcelain tile and preparation method thereof, and purpose of residue of aluminium extraction from fly ash
  • Porcelain tile and preparation method thereof, and purpose of residue of aluminium extraction from fly ash
  • Porcelain tile and preparation method thereof, and purpose of residue of aluminium extraction from fly ash

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Experimental program
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Effect test

Embodiment 1～4

[0059] Embodiments 1-4 adopt the following specific process steps to prepare porcelain tiles:

[0060] (1) Provide raw materials: weigh the fly ash aluminum extraction residue, kaolin, feldspar, quartz, and talc according to the ratio described in Table 2 for use (the total weight of the above raw materials is 100Kg);

[0061] (2) Pulping: Pour the spare fly ash aluminum extraction residue, kaolin, feldspar, quartz and talc into the ball mill tank, add water 0.55 times the total weight of raw materials, and wet ball mill to obtain slurry;

[0062] (3) Granulation: Use a spray drying tower to spray the slurry into the drying tower. The temperature of the drying tower is 550°C, and the sprayed slurry is dried to form granular powder;

[0063] (4) Stale: put the powder in the silo and store it for 2 days;

[0064] (5) Pressed compact: use an automatic brick press machine to press the powder into a green porcelain brick under a pressure of 40MPa;

[0065] (6) Drying: Use a dryin...

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Abstract

The invention discloses a porcelain tile and a preparation method thereof, and purpose of residue of aluminum extraction from fly ash. The porcelain tile provided by the invention uses residue of aluminum extraction from fly ash as a main raw material. The raw material comprises the following components: 30-45 wt% of residue of aluminum extraction from fly ash, 15-20 wt% of kaolin, 35-45 wt% of feldspar, 0-6 wt% of quartz and 1-3 wt% of talc. The porcelain tile provided by the invention has water absorption less than 0.5 wt% and rupture modulus larger than 35 MPa, and satisfies quality requirements of GB / T4100-2006. The invention uses a solid waste, residue of aluminum extraction from fly ash, in a scientific way, realizes the recycling of waste and expands the source of raw materials for porcelain tile production.

Description

technical field [0001] The present invention relates to a kind of porcelain brick and its preparation method and the application of fly ash aluminum extraction residue; Uses of Aluminum Residue. Background technique [0002] Porcelain tiles are a class of high-grade ceramic materials for architectural decoration, also known as vitrified tiles, porcelain tiles, homogeneous tiles, etc. The national standard "Ceramic Tiles" (GB / T4100-2006) "Appendix G (Normative Appendix) Dry Pressed Ceramic Tiles (E≤0.5wt%) Class BⅠa - Porcelain Bricks" stipulates that the water absorption of porcelain tiles should be less than 0.5 wt%, the modulus of rupture must be greater than 35MPa. Porcelain tiles have a dense structure, hard material, no deformation, no discoloration, good wear resistance and long-lasting color. Porcelain tiles have low water absorption, good frost resistance, rapid cooling and heat resistance, and crack resistance, and have a wide range of adaptability to climate env...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/132
CPCY02P40/60
Inventor 凌文严春杰徐会军池君洲薛强周俊吴永峰栗海峰
Owner CHINA SHENHUA ENERGY CO LTD