Ceramic whiteware raw material formula by using shale as main raw material and production process

Abstract

The invention provides a ceramic whiteware raw material formula by using shale as a main raw material and a production process. The raw material formula comprises 60 to 80 percent of shale, 4 to 6 percent of coal gangue, 8 to 12 percent of industrial coal ash, 8 to 12 percent of high-alumina sand and 4 to 6 percent of potash feldspar. The production process mainly comprises the following steps of: 1, primarily mixing hard raw materials in the formula in the formula ratio, and performing ball milling by using a water mill; 2, after the powder reaches the fineness, removing iron, sieving, putting into a sedimentation tank for sedimentation, removing surface layer water and impurities, and further removing water through a filter press to prepare wet powder; 3, adding the shale and the wet powder into a ball mill for mixed grinding, and performing iron removal and sieving on the slurry; and 4, preparing the prepared slurry into a green body, and firing the green body into a ceramic finished product to achieve the predicted green body whiteness.

Description

Technical field [0001] The invention relates to a white ceramic production process, in particular to a white ceramic production process using shale as the main raw material. Background technique [0002] Ceramics is the general term for pottery and porcelain. Porcelain was invented by the Chinese, which is universally recognized. Ceramics play an extremely important role in our lives. Whether it is production, life or artistic aesthetics, it has its own status. The ceramic tableware and sanitary ware, ceramic crafts, ceramic tiles, etc. used in our daily life are all typical ceramic products. [0003] Although ceramics has been developed in our country for more than three thousand years, the production technology of ceramics is still being explored and updated. [0004] The ceramic body in daily life is mainly white, which is most recognized and accepted by consumers. Under the existing production process conditions, shale cannot be used as the main raw material for white ceramic...

AI Technical Summary

Problems solved by technology

Ferric oxide is reddish-brown, and the calcined whiteness is relatively low, which reduces the whiteness of the green body

Difficult to apply in large quantities in white blank ceramic bodies

[0007] 2. The cost of implementation is high

Shale is a large-scale soft plastic material. When the material is refined and ground, a large proportion is added to the hard material, and it is difficult to achieve the simultaneous grinding effect of two different materials, soft and hard.

[0008] The fineness of the overall slurry of the ingredients is difficult to meet the requirements, which increases the energy consumption and cost of the ball mill

[0009] Due to the above reasons, ceramic manufacturers have been plagued by the fact that they cannot choose shale with lower cost as the main raw material for ceramic production.