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Negative ion ceramic product adopting fly ash as main raw material, and preparation method thereof

A technology for main raw materials and ceramic products, applied in the field of negative ion ceramic products and their preparation, can solve the problems of impurity cannot be removed, affect the environment, waste of resources, etc., and achieve the effects of good color development, pollution reduction, and power consumption reduction.

Inactive Publication Date: 2015-12-09
LIXIAN XINPENG CERAMIC +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The reason why there are still a large amount of fly ash in various parts of China being landfilled and not widely used in the field of ceramic production, resulting in a waste of resources and affecting the environment, is mainly due to the Fe2O and carbon contained in these wastes. Impurities such as salts and sulfates, organic carbon particles, and non-combustibles cannot be removed. In the production process of traditional ceramic formula technology, process technology, and firing technology, it is easy to cause defects such as pores, foaming, cracks, and impurities in the green body.

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  • Negative ion ceramic product adopting fly ash as main raw material, and preparation method thereof

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preparation example Construction

[0042] A kind of preparation method taking fly ash as the negative ion ceramic brick of main raw material, comprises the following steps:

[0043]A. Raw material crushing and sieving: mix and crush fly ash, bone ash, clinker, plastic clay, flux and ceramic coloring material according to the ratio, and sieve for later use;

[0044] B. Batching and stirring powder: add water to the sifted powder and stir, and add auxiliary materials and negative ion powder according to the formula ratio during the stirring process;

[0045] C. Stale: Send the powder obtained in step B into the silo to stale;

[0046] D. Compression molding and drying: the stale powder is punched and formed to obtain bricks, and the bricks are sent to a roller kiln at 120-240°C for drying. The moisture after drying is controlled at 0.3-1%, so that the bricks can be obtained good enough strength;

[0047] E. Firing: Send the dried bricks into the kiln for firing.

[0048] Wherein, in step A, the raw materials a...

Embodiment 1

[0061] The body of the ceramic thin-slab brick is made of the following raw materials in mass percentage: fly ash 50%, bone ash 20%, refractory waste brick 10%, borax 5%, bentonite 5%, reinforcing agent 0.1%, water reducing agent 0.1%, Praseodymium yellow 4.8%, negative ion powder 5%.

[0062] Preparation:

[0063] A. Raw material crushing and sieving: The raw materials fly ash, bone ash, refractory waste brick, borax, bentonite, and ceramic coloring material required by the formula are respectively crushed and passed through a 20-mesh standard sieve. The coarser particle raw materials are crushed again until the particle size reaches the standard, and they are put into storage together;

[0064] B. Batching, mixing and milling: mix the crushed qualified granular raw materials according to the formula ratio, add water and stir for 10 minutes, the stirring speed is 20r / min, and the amount of water added is controlled at 8% of the total raw materials. During the stirring proces...

Embodiment 2

[0072] The body of the ceramic thin-slab brick is made of the following raw materials in mass percentage: fly ash 50%, bone ash 10%, refractory waste brick 20%, borax 6%, bentonite 10%, reinforcing agent 0.5%, water reducing agent 0.5%, Ceramic pigment 2%, negative ion powder 1%, wherein the ceramic pigment is a combination of reddish brown and orange.

[0073] Preparation method Add water and stir for 20 minutes after removing the ingredients, the stirring speed is 20r / min, the amount of water added is controlled at 12% of the total amount of raw materials, the drying temperature is 200°C, the moisture after drying is controlled at 1%, and the thickness of the decorative layer is 0.2mm , The sintering temperature is 1180° C., and the sintering cycle is 40min, and the others are the same as in Example 1.

[0074] After performance testing, the permeable ceramic thin-slab brick prepared in this embodiment has a thickness of 4mm, a modulus of rupture of 40, a water absorption ra...

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Abstract

The invention relates to a negative ion ceramic product adopting fly ash as a main raw material, and a preparation method thereof, wherein the ceramic product is prepared from the following raw materials by mass: 50-70% of fly ash, 10-30% of bone ash, 5-20% of a clinker, 5-10% of plastic clay, 0-10% of a flux, 1-10% of negative ion powder, and 0-6% of an auxiliary material. According to the present invention, the negative ion ceramic product and the preparation method are provided, wherein with the negative ion ceramic product of the present invention, a lot of the fly ash can be consumed, the fly ash can be efficiently utilized in the ceramic field, and the fly ash utilization way that the fly ash is subjected to landfill and is used for making non-ceramic cement bricks or only be used for producing low-quality ceramic tile and the like is changed; and when the obtained product contacts air, the negatively charged air negative ion can be formed so as to increase the air negative ion concentration of the used environment.

Description

technical field [0001] The invention belongs to the technical field of preparation of ceramic products, in particular to an anion ceramic product with fly ash as the main raw material and a preparation method thereof. Background technique [0002] Fly ash is the fine ash collected from the flue gas after coal combustion. It is the main solid waste discharged from coal-fired power plants, ceramic factory gas stations and coal-water slurry furnaces. It is one of the largest industrial wastes in my country. With the development of the power industry, the discharge of fly ash from coal-fired power plants and ceramic direct-fired coal furnaces is increasing year by year. If a large amount of fly ash is not treated, it will be Generate dust, pollute the atmosphere, and if discharged into the water system, it will cause river silting, and the toxic chemicals in it will also cause harm to humans and organisms. After testing, it was found that the chemical composition of fly ash, in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/135
CPCY02P40/60
Inventor 龙海仁张帆周燕金国庭
Owner LIXIAN XINPENG CERAMIC
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