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Jun porcelain body prepared from coal ash

A technology of fly ash and green body is applied in the field of Jun porcelain green body using fly ash, which can solve the problem of low utilization rate of fly ash and achieve the effect of tight texture

Inactive Publication Date: 2018-12-21
周彩云
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Fly ash is the fine ash produced by the combustion of coal powder or coal gangue powder in the process of coal-fired heating and power generation. The annual output of my country is huge. At present, the utilization rate of fly ash in my country is not high, and fly ash The chemical composition of the fly ash is mainly silica and alumina, which are similar to the commonly used Jun porcelain raw materials, and in recent years, there have been researches on the application of fly ash to ceramics, but there are few reports on the research on the application of Jun porcelain body

Method used

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  • Jun porcelain body prepared from coal ash

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Comparison scheme
Effect test

Embodiment 1

[0015] A Jun porcelain body using fly ash, prepared from the following raw materials in parts by weight: fly ash 18-22, bauxite 13-17, clay 40-46, quartz 10-14, magnesite 4 -6.

[0016] The preparation method of the Jun porcelain body utilizing fly ash as mentioned above comprises the following steps:

[0017] (1) Take the above raw materials and mix them evenly, and then ball mill them through a sieve of more than 200 mesh;

[0018] (2) Obsolete 1-2d;

[0019] (3) The green body is shaped and dried, then bisque fired at 940-960°C for 3-4 hours, glazed and fired twice. After biscuit firing, the moisture in the green body can be discharged, the strength is increased, and the water absorption is enhanced, which is beneficial to Glazing: The glazes used can be red glaze, flower glaze, blue glaze, black glaze, etc. commonly used in Jun porcelain, and the secondary firing temperature is 1250-1310 °C.

[0020] After the present invention mixes a certain amount of fly ash, it is f...

Embodiment 2

[0022] A Jun porcelain body using fly ash is prepared from the following raw materials in parts by weight: 20 parts by weight of fly ash, 15 parts of bauxite, 43 clay, 12 parts of quartz and 5 parts of magnesite.

[0023] The preparation method of the Jun porcelain body utilizing fly ash as mentioned above comprises the following steps:

[0024] (1) Mix the above raw materials evenly, and then ball mill them through a 200-mesh sieve;

[0025] (2) trite 2d;

[0026] (3) The green body is shaped and dried, then bisque fired at 950°C for 4 hours, glazed and then fired for the second time. The glaze used is red glaze commonly used in Jun porcelain, and the temperature for the second firing is 1290°C.

[0027] After the second firing, the end surface of the carcass (unglazed part) is gray, the carcass is dense and delicate, which can set off the glaze color well, and the heat stability reaches 180°C and the carcass does not crack when placed in 20°C water for one exchange.

[002...

Embodiment 3

[0031] A Jun porcelain body using fly ash is prepared from the following raw materials in parts by weight: 21 fly ash, 14 bauxite, 42 clay, 13 quartz, and 5 magnesite.

[0032] The preparation method of the Jun porcelain body utilizing fly ash as mentioned above comprises the following steps:

[0033] (1) Mix the above raw materials evenly, and then ball mill them through a 200-mesh sieve;

[0034] (2) trite 2d;

[0035] (3) The green body is formed, dried, and then bisque fired at 950°C for 4 hours, glazed and fired twice, and the second firing temperature is 1290°C.

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Abstract

A jun porcelain body prepared from coal ash is prepared the following raw materials in parts by weight: 18-22 parts of coal ash, 13-17 parts of bauxite, 40-46 parts of hargil, 10-14 parts of quartz,and 4-6 parts of magnesite. According to the jun porcelain body prepared from the coal ash, a certain amount of coal ash is used for replacing some plastic raw materials, and on that basis, the plastic raw materials and opening materials of the body are optimized; in addition, hargil, bauxite, quartz and magnesite are selected, so that the fired body reaches the standard on a jun porcelain body used in the prior art; the jun porcelain body prepared from the coal ash is compact in texture and is gray and can be used for firing porcelains with glazing colors such as red glaze, blue glaze and fancy glaze.

Description

technical field [0001] The invention belongs to the technical field of Jun porcelain production, and in particular relates to a Jun porcelain green body using fly ash. Background technique [0002] Jun porcelain is a special product in Yuzhou City, my country, and is one of the five famous ancient Chinese porcelains. Its production is mainly based on the scientific configuration of blanks and glazes, and the change of flame atmosphere is controlled during the firing process. The same glaze color can be fired to produce mottled kiln-changing colors, which is known as "one color in the kiln, and many colors out of the kiln". In addition to the high requirements on the glaze and firing process, the blank is also very important. Under normal circumstances, after firing, the body of Jun porcelain requires fine texture, compactness and firmness, and gray or white color, so that it can be closely combined with the glaze and can well set off the glaze color. Commonly used blanks in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/135C04B33/24C04B33/16
CPCC04B33/1352C04B33/16C04B33/24C04B2235/3217C04B2235/442Y02P40/60
Inventor 周彩云
Owner 周彩云