What Is The Role Of Refractory

Refractory materials are used in various fields of the national economy, such as steel, non-ferrous metals, glass, cement, ceramics, petrochemical, machinery, boiler, light industry, electric power, military industry, etc. They are essential basic materials to ensure the production operation and technical development of the above industries, and play an irreplaceable 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, petrochemical and building materials, the refractory industry has maintained a good growth trend and has become a major producer and exporter of refractory materials in the world. In 2011, China's refractory production accounted for about 65% of the world's total, and its production and sales volume ranked first in the world.
The output of refractory raw materials and products increased steadily from 2001 to 2010, of which the output at the end of the Tenth Five-Year Plan was about twice that of 2001; In 2010, the national production of refractory products reached 280806 million tons, about three times that of the end of the Tenth Five-Year Plan. As of 2011, China's refractory industry has a total of 1917 enterprises above designated size, with more than 300000 employees, with sales revenue of 337.679 billion yuan and product sales profit of 47.737 billion yuan.
However, due to the low level of disorderly mining and processing technology, low level of comprehensive utilization of resources and serious waste, the above mineral resources, especially high-grade refractory raw material resources, have become less and less. Saving resources and comprehensive utilization of resources have become urgent.
Song Zhenyu believes that the refractory industry must guide the raw material mines to organize scientific mining, optimize and comprehensively utilize resources, especially the homogenization treatment of different grade ore deposits, put an end to indiscriminate mining and excavation, gradually promote the more rational use of resources, make the limited resources play the maximum role, and achieve sustainable development.
The development of the refractory industry is closely related to the amount of domestic mineral resources. Bauxite, magnesite and graphite are the three major refractory materials. China is one of the three largest bauxite exporters in the world, the largest magnesite reserves in the world, and a major exporter of graphite. Its rich resources have supported the rapid development of refractory materials in China for ten years.
At the same time, there are many refractory enterprises in China, and the enterprise scale, process technology, control technology and equipment level are uneven. Advanced production methods and backward production methods coexist. The overall level of cleaner 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-consuming production capacity during the 12th Five-Year Plan period, the industry will focus on the development and promotion of new energy-saving furnaces and kilns, the development of comprehensive energy-saving technologies, the implementation of energy management, the emission control of "three wastes" and the recycling of "three wastes". It is committed to the recycling 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.
According to the Refractory Industry Development Policy, the unit consumption of refractories in China's iron and steel industry is about 25 kg per ton of steel, which will fall below 15 kg by 2020. In 2020, China's refractory products with longer life, more energy saving, pollution-free and functional properties will be significantly improved. The products will meet the needs of national economic development such as metallurgy, building materials, chemicals and emerging industries, and improve the technical content of export products.