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What Is Refractory Materials?

Jan 08, 2024

A class of inorganic non-metallic materials with a refractoriness of not less than 1580℃. Refractory resistance refers to the temperature in degrees Celsius at which a conical sample of refractory material can resist the action of high temperature without softening and melting without load. However, it is no longer possible to fully describe refractory materials simply by definition of refractory degree. 1580°C is not absolute. Refractory Castable It is now defined as any material whose physical and chemical properties allow its use in high temperature environments is called refractory material. Refractory materials are widely used in metallurgy, chemical industry, petroleum, machinery manufacturing, silicate, power and other industrial fields. They are used in the largest amount in the metallurgical industry, accounting for 50% to 60% of the total output.

Refractory materials are used in various fields of the national economy such as steel, non-ferrous metals, glass, cement, ceramics, petrochemicals, machinery, boilers, light industry, electric power, military industry, etc. Refractory Fire Bricks They are essential basic materials to ensure the production operation and technological development of the above-mentioned industries. It plays an irreplaceable and important role in the development of high-temperature industrial production.

Since 2001, driven by the rapid development of high-temperature industries such as steel, nonferrous metals, petrochemicals, and building materials, the refractory materials industry has maintained a good growth trend and has become a major producer and exporter of refractory materials in the world. High Alumina Powder In 2011, China's refractory material output accounted for approximately 65% of the world's total, and its production and sales volume ranked first in the world's refractory materials.

The output of refractory raw materials and products increased steadily from 2001 to 2010, with the output at the end of the "Tenth Five-Year Plan" being approximately twice that of 2001; the national output of refractory products in 2010 reached 28.0806 million tons, Ceramic Fiber Cotton approximately three times that at the end of the "Tenth Five-Year Plan". As of 2011, there were 1,917 enterprises above designated size in China's refractory industry, employing more than 300,000 people, achieving sales revenue of 337.679 billion yuan, and product sales profits of 47.737 billion yuan.

However, due to the low level of disordered mining and processing technology, the low level of comprehensive utilization of resources, and serious waste, the above-mentioned mineral resources, especially high-grade refractory raw material resources, have become increasingly scarce. Ceramic Fiber Tube Saving resources and comprehensively utilizing resources has become a top priority.

The development of the refractory materials industry is closely related to the retention of domestic mineral resources. Bauxite, magnesite and graphite are the three major refractory raw materials. China is one of the world's three largest bauxite exporters, has the world's largest magnesite reserves, and is also a major exporter of graphite. Its abundant resources have supported China's refractory materials through a decade of rapid development.

At the same time, there are many Refractory Cement DM50 refractory companies in China, with varying levels of enterprise scale, process technology, control technology, and equipment. Advanced production methods coexist with backward production methods. The overall level of clean production in the industry is not high, and the task of energy conservation and emission reduction is arduous.

As China accelerates the elimination of backward and energy-intensive production capacity during the "Twelfth Five-Year Plan" period, the industry will focus on developing and promoting new energy-saving furnaces, developing comprehensive energy-saving technologies, carrying out energy management, emission control of "three wastes" and resource utilization of "three wastes" Recycling etc.Silicon Bricks For Glass Kiln Committed to the resource utilization and reuse of used refractory materials, reducing solid waste emissions, improving the comprehensive utilization rate of resources, and comprehensively promoting energy conservation and emission reduction.

The "Refractory Industry Development Policy" points out that the unit consumption of refractory materials in China's steel industry is about 25 kilograms per ton of steel, which will be reduced to less than 15 kilograms by 2020. In 2020, China's refractory products will be significantly longer-lived, more energy-saving, pollution-free, and functional. The products will meet the development needs of the national economy such as metallurgy, building materials, chemicals, and emerging industries, and the technical content of export products will be improved.

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