RS Silicon Carbide Mullite Bricks

Silicon Carbide Mullite Bricks

Has a dense structure.
High high-temperature compressive strength.
High high-temperature structural strength.
Good thermal shock stability.

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Rongsheng Silicon Carbide Mullite Brick has a dense structure, high-temperature compressive strength and high-temperature structural strength, and good thermal shock stability. Silicon Carbide Mullite Bricks produced by Rongsheng Refractory Bricks Manufacturer uses neutral high alumina clinker and silicon carbide as the main materials and adds imported andalusite for production. It has a low apparent porosity. It can continuously form a protective layer during use, has good wear resistance, and has strong anti-stripping properties.

Physical and Chemical Indicators of Silicon Carbide Mullite Bricks

Physical and Chemical Indicators of Silicon Carbide Mullite Bricks in Rongsheng
Items	GM1650	GM1600	GM1550
Al₂O₃ %	≥65	≥63	≥60
Bulk Density, g/cm³	≥2.65	≥2.60	≥2.55
Apparent Porosity, %	≤17	≤17	≤19
CCS, MPa	≥85	≥90	≥90
0.2MPa RUL℃	≥1650	≥1600	≥1550
TSR, Cycle 1100℃ Water	≥10	≥10	≥12
Cold Wear Resistance, cm³	≤5

Physical and Chemical Indicators of Silicon Carbide Mullite Andalusite Bricks in Rongsheng
Items	GMH1	GMH2	GMH3
Al₂O₃ %	≥69	≥67	≥65
SiO₂+SiC %	≥25	≥30	≥30
Bulk Density, g/cm³	≥2.7	≥2.65	≥2.65
Apparent Porosity, %	≤17	≤17	≤18
CCS, MPa	≥100	≥100	≥100
0.2MPa RUL℃	≥1660	≥1660	≥1650
TSR, Cycle 1100℃ Water	≥25	≥18	≥15
Cold Wear Resistance, cm³	≤7

Advantages and Features of Silicon Carbide Mullite Bricks

Rongsheng Silicon Carbide Mullite Brick is suitable for the transition zone of cement kilns, just like magnesium-aluminum spinel bricks. Compared with magnesium-aluminum spinel bricks, Rongsheng Silicon Carbide Mullite Bricks have a higher cost-effectiveness. The erosion of chlorine-alkali components and poor thermal shock stability are the main reasons for the damage to refractory bricks in the transition zone. Rongsheng Silicon Carbide Mullite Brick takes a unique approach, using neutral high-alumina bauxite clinker and silicon carbide as the main materials, and adding imported andalusite for production, which has a lower apparent porosity. At the same time, the alkali-sulfur erosion of lining bricks is reduced by utilizing the large infiltration angle between cement materials and alkali-sulfur components and silicon carbide, which is not easy to infiltrate. The andalusite in the product produces an irreversible micro-expansion effect during secondary mullite in the cement kiln. The product will not shrink when it is cooled, offsetting the shrinkage stress and preventing structural spalling.

The thermal conductivity of Rongsheng Silicon Carbide Mullite Bricks is relatively low. Under the same conditions, the cylinder temperature of the part where silicon carbide bricks are used is relatively low. Therefore, under the social development trend of increasing emphasis on energy conservation and environmental protection, Silicon Carbide Mullite Bricks are increasingly used in cement rotary kilns.

Compared with magnesia-alumina spinel bricks, Silicon Carbide Mullite Bricks have the advantages of low thermal conductivity, good thermal shock stability, and high-cost performance. Compared with Silicon Carbide Mullite Bricks, magnesia-alumina spinel bricks have the advantages of stronger corrosion resistance and the disadvantage of high thermal conductivity. In the rotary kiln with a garbage treatment system, magnesia-alumina spinel bricks have better resistance to alkali-sulfur corrosion.

Application of Silicon Carbide Mullite Brick

Rongsheng Silicon Carbide Mullite Brick is mainly used in the transition zone, preheating zone, tertiary air duct, five-stage preheater, and lime kiln unloading chute of cement rotary kiln.

Generally, the transition zone of a cement kiln is divided into two sections, upper transition zone and lower transition zone. The part close to the preheating zone is generally called the upper transition zone, and the part close to the kiln mouth is called the lower transition zone. In the upper transition zone, 1650 Silicon Carbide Mullite Brick is generally used. In the lower transition zone and kiln mouth, due to the high temperature and severe wear and erosion, only magnesium aluminum spinel bricks or 1680 Silicon Carbide Mullite Brick can be used. Due to the high temperature in this area, the service life of refractory materials used in the transition zone is generally about 12 months. 1550 Silicon Carbide Mullite Brick is suitable for the tertiary air duct with high wind speed and severe erosion in cement production lines, decomposition furnaces with severe material erosion, and four or five-stage preheaters that are prone to crusting.

Rongsheng Silicon Carbide Mullite Bricks Manufacturer

Rongsheng is a powerful manufacturer and seller of refractory bricks. Rongsheng can provide the design, supply, and construction of lining materials for high-temperature industrial furnaces. Rongsheng’s Silicon Carbide Mullite Brick has high quality and long service life. Overall, Rongsheng’s Silicon Carbide Mullite Brick has high-cost performance and is increasingly used in cement rotary kilns. Silicon Carbide Mullite Bricks are mostly used in the kiln tail and transition zone of cement rotary kilns. After practice, the transition zone of cement rotary kilns with a capacity of 4000t/d or less is currently mostly built with Silicon Carbide Mullite Brick.

Moreover, Rongsheng’s refractory bricks product have been sold to more than 120 countries around the world. For example, South Africa, Chile, Egypt, Colombia, Uzbekistan, Italy, Indonesia, Ukraine, Hungary, Spain, Kenya, Syria, Zambia, Oman, Venezuela, India, Peru, the United States, Ethiopia, etc. If you need to buy high-quality Silicon Carbide Mullite Bricks, please contact Rongsheng Factory. The shape, size, etc. of refractory bricks can be customized. In addition, there are free quotes and samples!