A kind of red ceramic tile and its manufacturing method

Abstract

The invention discloses a red ceramic tile and a manufacturing method thereof. The ceramic tile is prepared from the following raw materials in parts by mass: 50-60 parts of red mud, 15-25 parts of kaolin, 15-25 parts of perlite, 10-15 parts of quartz sand, 5-10 parts of fly ash, 2-5 parts of andradite, 2-5 parts of gehlenite and 2-5 parts of diopside. The manufacturing technique comprises the following steps: material selection, powder preparation, compaction, drying, glazing and firing to obtain the finished product. The use proportion of the red mud is greater than one half of the total raw materials; and the consumption of the red mud is maximally increased, thereby relieving the abundant discharge of the red mud which has no place to arrange, changing wastes into valuable substances, utilizing the waste, lowering the production cost and reducing the environmental pollution. The red ceramic tile is corresponding to new product research, development and application in the whole ceramic brick industry around the environment-friendly problems of energy saving, emission reduction, waste slag utilization and the like.

Description

technical field [0001] The invention relates to the field of silicate products, in particular to a red ceramic tile and a manufacturing method thereof. Background technique [0002] Red mud is reddish-brown, powdery mud-like strongly alkaline solid waste left after alumina is produced from bauxite, and is an essential by-product in the alumina production process. Generally, for every 1 ton of alumina produced, 1.0-1.8 tons of red mud can be produced. With the development of the aluminum industry, the discharge of red mud in my country is about 5 million tons, and it is increasing year by year. The stockpiling of red mud not only occupies a large amount of land and farmland, but also consumes a lot of construction and maintenance costs of the stockyard, and the alkali in the red mud can seep into the ground, causing groundwater pollution. In addition, the dust formed by the dried red mud is flying everywhere, damaging the ecological environment and causing serious pollution...

AI Technical Summary

Problems solved by technology

After adding red mud in production, the process formula can be adjusted to make up for the shortcomings of red mud, so that the raw materials containing red mud can meet the technological requirements for the production of ceramic tiles and tiles. However, the red mud used in the above patent is only 15%, which is far from being able to solve the problem. Existing discharge of red mud