Method for producing ceramic tile by metallurgical steel slag

Abstract

The invention discloses a method for producing a ceramic brick by metallurgical steel slag, which comprises the following steps: crushing waste slag after metallurgical steel-making; adding clay, talc, quartz and other materials to the waste slag according to the requirement of formulation property to mold a blank by a dry pressing method through ball milling by a wet method, and powdering by slurry spraying; drying and placing the molded blank into a roller kiln for maturing; and producing the matured product into a finished product through edging, polishing, grading and packaging. The invention can be widely applied in decoration, has the characteristics of environmental production, high strength, corrosion resistance, good decoration effect and so on. The method provided by the invention is simple and feasible, and is beneficial to industrial production.

Description

technical field [0001] The invention relates to a method for producing ceramic bricks by using metallurgical steel slag, in particular a method for producing ceramic bricks by using steelmaking waste slag. Background technique [0002] Diopside was first used in foreign countries in the 1970s. The main reason is that the foreign ceramic industry is facing three major problems: first, the kaolin produced in countries with high-quality kaolin is mainly used in the paper industry and the raw materials for the ceramic industry are gradually depleted; The ceramic industry itself is facing energy problems and needs to find energy-saving raw materials; the third is that the feldspar raw materials used in the ceramic industry are insufficient and expensive. Wollastonite was also not sufficient, so diopside began to be used. In the production of porcelain tiles, adding 7% to 15% of diopside will result in low porcelain body temperature, wide firing range (1160-1180°C), good glaze bo...

AI Technical Summary

Problems solved by technology

[0002] Diopside was first used in foreign countries in the 1970s. The main reason is that the foreign ceramic industry is facing three major problems: first, the kaolin produced in countries with high-quality kaolin is mainly used in the paper industry and the raw materials for the ceramic industry are gradually depleted; The ceramic industry itself is facing energy problems and needs to find energy-saving raw materials; the third is that the feldspar raw materials used in the ceramic industry are insufficient and expensive. Wollastonite can not meet the demand, so diopside began to be used

In the past, these technical methods all had the problems of poor raw material processing effect, high energy consumption, and low-grade products, and more importantly, none of them were ceramic materials with diopside as the main crystal phase.