As a kind of refractory with excellent performance, silica brick has been widely used in many industrial fields because of its high fire resistance, good acid slag corrosion resistance and high volume stability. The following are the main application fields and specific uses of silicon bricks:

I. Coke oven

Coke oven is the key equipment in coking production, which is used to dry distill coal into coke at high temperature. The furnace body of coke oven needs to withstand the double tests of high temperature and chemical erosion, and silicon brick is an ideal material for the wall and bottom of coke oven. Its main applications include:

Furnace wall: The high fire resistance and corrosion resistance of silicon brick can effectively protect the furnace wall and reduce the damage caused by high temperature and acid slag erosion.

Furnace bottom: The high volume stability of silicon brick enables it to maintain structural integrity at high temperature and reduce the deformation and damage of the furnace bottom.

Regenerator: The high thermal conductivity and good thermal storage capacity of silicon brick make it perform well in regenerator, which can effectively improve the thermal efficiency of coke oven.

II. Glass kilns

Glass kiln is the core equipment in glass production, which is used to melt glass raw materials into glass liquid at high temperature. In the production process of glass kiln, it needs to run at high temperature for a long time, and the molten glass also has a certain corrosive effect on refractories. The application of silica brick in glass kiln includes:

Melting pool: The high fire resistance and erosion resistance of silicon brick can effectively resist the erosion of glass melt and ensure the stable operation of melting pool.

Liquid hole: silicon brick can withstand the erosion of high temperature glass liquid and reduce the damage caused by erosion.

Passage: The high thermal conductivity and good corrosion resistance of silica brick make it perform well in the passage of glass kiln, which can effectively improve the fluidity and quality of glass liquid.

III. Hot blast stove

Hot blast stove is an important equipment in iron and steel production, which is used to provide high temperature hot air for blast furnace. Silicon brick has been widely used in the vault and checker brick of hot blast stove. Its main applications include:

Vault: The high fire resistance and corrosion resistance of silicon brick can effectively protect the vault and reduce the damage caused by high temperature and acid slag erosion.

Checked brick: The high thermal conductivity and good heat storage ability of silicon brick make it perform well in checked brick, which can effectively improve the thermal efficiency of hot blast stove.

Combustion chamber: silicon brick can withstand the erosion of high temperature flame and reduce the damage caused by erosion.

IV. Non-ferrous metal smelting furnace

In the process of non-ferrous metal smelting, there are many unfavorable factors such as high temperature and acidic slag in the complex environment in the furnace. Silicon bricks can effectively resist these harsh conditions and provide reliable protection for non-ferrous metal smelting furnaces. Its main applications include:

Furnace lining: The high fire resistance and corrosion resistance of silicon brick can effectively protect the furnace lining and reduce the damage caused by high temperature and acid slag erosion.

Furnace bottom: The high volume stability of silicon brick enables it to maintain structural integrity at high temperature and reduce the deformation and damage of the furnace bottom.

Melting pool: Silicon bricks can withstand the erosion of high-temperature molten metal and reduce the damage caused by erosion.

V. Ceramic kilns

Ceramic kiln is used for firing ceramic products, which needs to run at high temperature for a long time. The application of silicon brick in ceramic kiln includes:

Kiln wall: The high fire resistance and erosion resistance of silicon brick can effectively protect the kiln wall and reduce the damage caused by high temperature and acid slag erosion.

Kiln bottom: The high volume stability of silicon brick enables it to maintain structural integrity in high temperature environment and reduce the deformation and damage of kiln bottom.

Kiln top: The high fire resistance and erosion resistance of silicon brick can effectively protect the kiln top and reduce the damage caused by high temperature and acid slag erosion.

VI. Other high-temperature equipment

Silicon bricks are also widely used in other high-temperature equipment, such as tunnel kiln, rotary kiln and heating furnace. Its main applications include:

Tunnel kiln: used for firing ceramics, glass and other products. Silicon brick can effectively resist high temperature and chemical erosion, and ensure the stable operation of tunnel kiln.

Rotary kiln: used in the production of cement, lime, etc. Silicon bricks can withstand the double tests of high temperature and mechanical stress and reduce the damage caused by erosion and wear.

Heating furnace: used in metal heat treatment and other processes, silicon brick can effectively protect the furnace body and reduce the damage caused by high temperature and chemical erosion.

VII. Application Advantages of Silicon Brick

High fire resistance: the fire resistance temperature of silicon brick is generally around 1700℃, or even higher, and it can remain stable in extremely high temperature environment.

Corrosion resistance of acid slag: Silicon brick has good corrosion resistance to acid slag and can work stably in acid environment for a long time.

High volume stability: Silicon bricks have high volume stability in high temperature environment, and will not expand or contract excessively due to temperature changes, thus reducing cracks and deformation of furnaces.

Good thermal conductivity: Silicon bricks have high thermal conductivity, which can effectively improve the thermal efficiency of furnaces and reduce energy consumption.

VIII. Future development trend

With the continuous development of industrial technology, the performance requirements of silicon bricks are also constantly improving. In the future, the production of silicon bricks will pay more attention to environmental protection, energy saving and consumption reduction. On the one hand, by improving production technology and equipment, energy consumption and pollutant emission in the production process are reduced; On the other hand, research and develop higher performance silicon brick products to meet the increasingly stringent industrial production requirements. For example, the development of new silicon bricks with higher fire resistance, lower apparent porosity and better erosion resistance will provide more powerful guarantee for the efficient operation of high temperature furnaces.

As an important refractory, silica brick plays an irreplaceable role in industrial production with its excellent performance and wide application fields. With the continuous progress of technology and the continuous expansion of market demand, the silicon brick industry will usher in a broader development prospect.