Glass ceramics made from high silicon iron tailings and manufacturing method thereof

Abstract

The invention relates to the technical field of solid waste resource utilization, in particular to glass ceramics made from high silicon iron tailings, which is characterized by comprising the raw materials in parts by weight: 30-70 parts of the iron tailings, 15-40 parts of quartz, 5-20 parts of calcium carbonate, 3.5-6.5 parts of aluminum oxide, 8.5-9.5 parts of sodium carbonate, 4-5 parts of zinc oxide, 3-6 parts of barium carbonate and 1-3 parts of borax. The manufacturing method of the glass ceramics comprises the following steps: putting the glass ceramics blended materials in a kiln for melting into molten glass; allowing the molten glass to directly flow into water for water quenching to form glass particles; and paving the glass particles in a refractory die, crystallizing the paved particles in a tunnel kiln, a shuttle kiln or a chamber electric furnace, and grinding and cutting the crystallized glass ceramics to finally obtain the finished product of the glass ceramics. The invention can reduce stockpile of the tailings, alleviate environmental pollution, realize comprehensive resource utilization, improve product performances and lower production cost, thus having good social benefit and good economic benefit.

Description

technical field [0001] The invention belongs to the field of utilization of solid waste resources, in particular to a glass-ceramic manufactured from high-silicon iron tailings and a manufacturing method thereof. Background technique [0002] Glass-ceramic is a polycrystalline material obtained by controlling the crystallization of glass. At present, glass-ceramics has formed a special category of materials, with various varieties and different properties, and has a very wide range of uses. Glass-ceramic plate is one of many varieties of glass-ceramics. It is a new type of high-grade building decoration material with high strength, wear resistance, corrosion resistance, weathering resistance, non-absorbent, easy cleaning and maintenance, and no radioactive pollution. Features and uniform color tone, soft and crystal-clear luster, compact and flawless surface and other excellent appearance characteristics, so the performance of glass-ceramic plates is superior to natural sto...

AI Technical Summary

Problems solved by technology

The disadvantages of this kind of glass batch material are: high cost of raw materials; high melting temperature of glass, generally between 1500-1550 °C, which will inevitably increase fuel consumption and intensify the erosion of glass liquid on refractory materials of kiln; The more chemical raw materials there are, the more severe the corrosion of the refractory material of the furnace will be.

And the discarded high-silicon iron tailings have been accumulated in tailings ponds or river ditches, and the fields have not been used for a long time. It takes up a lot of land and pollutes the environment.