Powder Machinery Cylinder Lining

The inner lining of the powder mechanical cylinder is a critical component in powder processing equipment, designed to protect the cylinder, enhance grinding efficiency, and ensure material purity. The choice of material directly impacts the equipment's performance and maintenance costs.

The function of the lining

Protective Cylinder Lining: The primary function of the powder mechanical cylinder lining is to protect the cylinder from direct impact and friction of the grinding medium and material, thereby extending the service life of the cylinder.
Adjust material movement state: Different shapes and materials of the lining can adjust the movement state of materials and grinding media inside the drum, thereby improving grinding efficiency.
Enhance Grinding Efficiency: By selecting the appropriate lining material and shape, the grinding medium's powder grinding effect can be enhanced, thereby improving the powder grinding efficiency.

Common lining materials

Polyurethane
Wear Resistance: Polyurethane boasts a wear resistance 3-5 times that of natural rubber, particularly excelling in environments below 80°C.
Corrosion Resistance: Highly resistant to non-polar mineral oils, fuel oils, and mechanical oils, suitable for chemical conveyance and other working conditions.
High elasticity and resilience: Wide hardness range (Shore A10-D95), combining the flexibility of rubber with the high strength of plastic, capable of absorbing vibration energy and reducing the impact damage to the cylinder.
High purity, non-polluted: Wear particles can be completely eliminated through heat treatment, preventing contamination of materials, particularly suitable for industries with strict purity requirements such as food and pharmaceuticals.
Metal
High strength and hardness: Metal linings such as high manganese steel and alloy steel offer excellent impact resistance and wear resistance, suitable for high-wear conditions like coarse grinding bins.
Shape Varieties: Available in flat, ribbed, grooved, corrugated, and stepped designs, to adjust the movement state of the grinding medium according to grinding requirements.
Wear-resistant ceramic
Superior Abrasion Resistance: The hardness of the wear-resistant ceramic is significantly higher than that of metal and polyurethane, suitable for ultra-fine grinding and other extreme abrasive conditions.
High temperature resistance: Wear-resistant ceramic maintains stable performance in high-temperature environments, suitable for high-temperature grinding processes.
Stainless Steel
Corrosion Resistance: The stainless steel lining boasts excellent corrosion resistance, suitable for environments with high material purity requirements and strong corrosiveness.
Easy to clean: The smooth surface of the stainless steel is not prone to material adhesion, making it convenient for cleaning and maintenance.

Choice of Lining

Grinding Media and Material Characteristics: Select an appropriate lining material based on the hardness, particle size of the grinding media, and the properties of the material (such as hardness, viscosity, corrosiveness).
Grinding process requirements: Select different shapes and materials for the inner lining based on the grinding process needs (such as coarse grinding, fine grinding, ultra-fine grinding) to adjust the movement state of the grinding medium and enhance grinding efficiency.
Equipment Operating Conditions: Consider the operating temperature, pressure, and rotational speed of the equipment, and select a lining material that can maintain stable performance in the corresponding environment.
Cost and Maintenance: Select a cost-effective lining solution by considering the cost of the lining material, its service life, and maintenance difficulty, while ensuring performance requirements are met.