Method for reclaiming and utilizing porcelain clay tailings and petuntse prepared by the same

A technology for porcelain clay and tailings, applied in the field of porcelain clay, can solve problems such as tailings pollution, and achieve the effects of increasing the firing temperature range, facilitating production control, and reducing the addition amount

Inactive Publication Date: 2008-02-20
GUANGDONG DONGBAO GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of mine tailings pollution, provide a method for recycling discarded china clay tailings and the porcelain clay prepared therefrom, so that the china clay tailings can be widely used in the production of daily-use porcelain, craft porcelain and sanitary ware

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Prepare the composition of the following ingredients and percentage by weight: Feitianyan porcelain clay tailings 50%, Al 2 o 3 30% high alumina clay with a content of 36wt%, 2% talc clay with a MgO content of 29.3wt%, 8% albite and 10% soft clay. Water is added in the ratio of 1:0.8 by weight of the composition, and ball milled in a ball mill, the fineness is controlled to pass through a 325-mesh sieve and the balance is less than 0.2%. Then remove iron, sieve, press filter and dehydrate again, vacuum slime to remove air bubbles, and form porcelain clay with a moisture content of 23wt%. The porcelain clay has a plasticity index of 2.6, a firing temperature range of 1300-1380° C., and a shrinkage rate of 10.8 percent during the firing process, and can be used to manufacture daily-use ceramics or technical ceramic products.

Embodiment 2

[0022] Prepare the composition of the following ingredients and weight percentages: Feitianyan porcelain clay tailings 51%, Al 2 o 3 30% high-alumina clay with a content of 36wt%, 2% talc, 5% waste glass, and 12% black soil. Water is added in the ratio of 1:0.8 by weight of the composition, and ball milled in a ball mill, the fineness is controlled to pass through a 325-mesh sieve and the balance is less than 0.2%. Then remove iron, sieve, press filter and dehydrate again, vacuum slime to remove air bubbles, and form porcelain clay with a moisture content of 23wt%. The porcelain clay has a plasticity index of 2.4, a firing temperature range of 1180-1250° C., and a shrinkage rate of 10.2 percent during firing, and can be used to manufacture daily-use stoneware products.

Embodiment 3

[0024] Prepare the composition of the following ingredients and weight percentages: Feitianyan porcelain clay tailings 45%, Al 2 o 3 30% high-alumina clay with a content of 36wt%, 4% magnesia clay with a MgO content of 29.3wt%, 5% waste glass, 8% soft clay, and 8% black soil. Water glass with a modulus of 2.6 and a specific gravity of 1.53 g / ml is added in a ratio of 1:0.3% by the total weight of the composition. Water is added in a ratio of 1:0.45 to the total weight of the composition, and ball milled in a ball mill until the fineness is less than 0.5% after passing through a 325-mesh sieve. Iron is then removed to form a slurry with a moisture content of 30 wt%. Grouting to form a green body of sanitary ware, glazed after drying, firing at 1180-1250°C, the shrinkage rate of the firing process is 7.65%, and the sanitary ware made meets the requirements of the Chinese GB / T6952-2005 "Sanitary Ceramics" standard.

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PUM

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Abstract

The invention discloses a method for recycling porcelain clay gangue and the produced petuntse thereof, which is grinded by combinations of porcelain clay gangue, high alumina clay, magnesium mineral, and sodium fluxing agent and plasticizer and polo, wherein, the sodium fluxing agent is better to be waste glass. The invention solves the problem of gangue pollution, greatly applies the porcelain clay gangue to the production of household porcelain, technology porcelain and sanitaryware and reduces the cost of gangue of 20-30 percent compared with the existing common gangue.

Description

technical field [0001] The invention relates to a method for recycling porcelain clay tailings and the prepared porcelain clay. Background technique [0002] The porcelain clay in the southern region is mostly high in silicon and low in aluminum, and has poor plasticity. In order to improve the aluminum content and plasticity of china clay, the method of elutriation is used to remove high silicon minerals in china clay, forming a large amount of tailings. Due to the small size and high fluidity of the tailings, it is easy to flow into farmland or rivers when washed down the mountain, resulting in poor fertile soil, blocking the rivers, and causing serious public hazards. The pollution problem of porcelain clay tailings has been an intractable disease in history, due to the SiO in the tailings 2 High content, Al 2 o 3 The content of tailings is low, and there is still no effective method for the utilization of tailings. Only a small amount is used to make glass mosaics, g...

Claims

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Application Information

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IPC IPC(8): C04B33/13C04B33/132
CPCY02P40/60
Inventor 刘荣海邱伟志黄玉銮刘荣书洪兆凯
Owner GUANGDONG DONGBAO GRP
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