Refractory materials are inorganic non-metallic materials that can maintain stable performance under high-temperature conditions. They are typically used in high-temperature industrial equipment and structures to protect them from high temperatures, chemical corrosion, and thermal stress. These materials are made from natural ores (such as refractory clay, silica high-alumina bauxite, magnesite, zircon sand, dolomite, graphite, etc.), certain industrial raw materials (such as industrial alumina, zirconia, etc.) and synthetic materials (such as silicon carbide, synthetic mullite, synthetic andalusite, synthetic spinel, etc.).
Upstream:
Materials
Midstream:
Manufacturing and Processing
Downstream:
Applications
Refractory clay
Silica stone
High alumina bauxite
Magnesite
Synthetic mullite
Dolomitic
Refractory materials typically have extremely high melting points allowing them to remain stable in high-temperature environments For example, the melting point of ordinary refractory bricks is around 1700°C, while some specialty refractory materials can have melting points exceeding 2000°C.
Refractory materials are resistant to thermal expansion, contraction, or other deformation at high temperatures, allowing them to withstand high-temperature environments for extended periods without compromising their structure.
Refractory materials maintain a high mechanical strength even under high-temperature conditions making them resistant to damage from mechanical impacts and loads.
Refractory materials exhibit good corrosion resistance to acidic alkaline, and neutral slags, gases, and liquid metals, making them less susceptible to erosion by chemical substances in high- temperature environments.
Depending on the specific application requirements, refractory materials can possess excellent thermal conductivity or insulation properties to meet the thermal management needs of various industrial processes.
The downstream of the refractory materials industry chain mainly involves sectors such as steel, building materials (cement, glass, ceramics, etc.), non-ferrous metals chemicals, power, environmental protection, and military applications. According to the demand structure for refractory materials in China, the downstream applications are predominantly in the steel industry, accounting for approximately 70%. This is followed by the cement and ceramics industries, which account for 7% and 6% respectively. The glass and chemical sectors account for less than 5%.
Ordinary refractory materials: 1580 ℃ -1770 ℃ Advanced refractory materials: 1770 ℃ -2000 ℃ Special grade refractory material: >2000 ℃
Burnt product Not burned into products Monolithic refractory
Acidic refractory material Neutral refractory material basic refractoryClassified by chemical minerals
Silicon (silica), aluminum silicate, Jadeite, magnesium, magnesium calcium aluminum magnesium Magnesium silicate carbon composite refractory material Zirconium refractory material, special refractory material
The downstream of the refractory materials industry chain mainly involves sectors such as steel, building materials (cement, glass, ceramics, etc.), non-ferrous metals, chemicals, power, environmental protection, and military applications. According to the demand structure for refractory materials in China, the downstream applications are predominantly in the steel industry, accounting for approximately 70% This is followed by the cement and ceramics industries, which account for 7% and 6%, respectively. The glass and chemical sectors account for less than 5%.
As a provider of comprehensive grinding equipment solutions, Liming Heavy Industry offers solid technical and grinding equipment support for the refractory materials industry.
The refractory raw materials, after classification and batching, are sent to Liming Heavy Industry's grinding equipment for dry grinding. They then enter a homogenization silo for uniform mixing. Finally, water or binders are added for stirring, and the materials are shaped using either hydraulic pressing or rolling ball methods. The dry process is relatively simple, resulting in a low moisture content after shaping. Compared to natural raw materials, this process features stable mineral phases, uniform composition, and consistent density, achieving the transformation from raw materials to high-performance refractory powders.
Processing Fineness: 0.84-0.037 mm
Capacity: 10-400 T/H
Processing Fineness: 0.045-1.6 mm
Capacity: 3~55 T/H
Liming Heavy Industry is a pioneering enterprise in the global powder new materials, mineral grinding and resource recycling industries, specializing in grinding equipment technology, system solutions, and services. The company covers an area of over 1,600 acres and has served more than 30,000 customers in over 180 countries and regions. It has obtained over 280 patents and is the first company in the industry to pass ISO 9001 international quality system certification, EU CE certification, and Customs Union CU-TR certification.
The company focuses on the needs of customers in different fields, with product processing ranges covering coarse powders from 1 to 3 mm, fine powders from 20 to 400 mesh, ultrafine powders from 400 to 1250 mesh, and micro powders from 1250 to 3250 mesh, encompassing the entire industrial chain of new material mineral grinding.
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