Requirements that Refractory Bricks for Ceramsite Rotary Kilns Need to Meet

2024-02-02 17:28:32

Refractory bricks for ceramic rotary kilns need to meet the following requirements:

High-temperature performance: The operating temperature of the ceramsite rotary kiln is relatively high, so the refractory bricks are required to maintain their shape and performance at high temperatures without softening, melting, or deformation.

Thermal shock resistance: Due to temperature changes in the ceramsite rotary kiln, refractory bricks are required to have a certain thermal shock resistance to cope with the effects of temperature changes.

Wear resistance: The refractory bricks in the ceramic rotary kiln need to withstand the high-speed flow and friction of materials, so they are required to have sufficient wear resistance to prevent excessive wear.

Chemical stability: The refractory bricks in the ceramic rotary kiln need to be in contact with a variety of chemicals, so they are required to have excellent chemical stability to prevent erosion.

Strength: Refractory bricks need to have a certain strength to withstand the pressure and friction within the kiln.

Dimensional stability: The dimensions of refractory bricks need to remain stable to ensure the masonry quality and service life of the kiln.

Environmental protection: Environmentally friendly materials should be selected for refractory bricks used in ceramsite rotary kilns to reduce the impact on the environment.

Ceramic production process

Raw material preparation: Select good ceramic raw materials, such as clay, porcelain stone, quartz, etc., and carry out grinding, screening, blending, and other processing to make them have good molding performance and sintering performance.

Molding: The prepared ceramic raw materials are molded. Common molding methods include extrusion, granulation, wet molding, etc. Extrusion molding is a commonly used molding method. The ceramic slurry is injected into the mold, and then the required shape of the ceramic particles is obtained through drying and demoulding.

Firing: Put the shaped ceramsite into a rotary kiln for firing, causing the ceramsite to undergo a series of physical and chemical changes at high temperatures, such as softening, melting, hardening, etc., to form ceramsite with the required properties.

Cooling: The fired ceramsite needs to be cooled naturally or forcedly for subsequent processing.

Screening: Screen the cooled ceramsite to remove unqualified ceramsite and obtain ceramsite products that meet the requirements.

Packaging: Pack qualified ceramsite to prevent moisture and contamination and maintain the stability of its performance.

Refractory bricks for ceramsite rotary kilns need to have high-temperature performance, thermal shock resistance, abrasion resistance, chemical stability, strength, dimensional stability, and environmental protection. During the production process, we also need to pay attention to environmental protection issues and take corresponding measures.

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