Ball mill linings are important accessories for protecting the inner wall of the mill. They have the functions of improving grinding effect, production efficiency and extending the service life of the mill. There are many materials for mill linings. Liners of different materials can be selected according to the working conditions of the working parts. We are committed to producing linings of various shapes and different materials with new materials. The main materials of mill linings are:
High manganese steel: It has good toughness and work hardening ability. When it is impacted and worn, the surface will harden rapidly, thereby improving wear resistance. It is widely used in various ball mills, especially ball mills that process ores with medium hardness or below, such as iron ore, copper ore, etc.
High chromium cast iron: It has high hardness, good wear resistance, and certain corrosion resistance. It is suitable for processing materials with higher hardness, such as quartz stone, granite, etc. However, the toughness of high chromium cast iron is relatively poor and it is prone to brittle fracture.
Medium manganese ductile iron: The manganese content is 7%-9%, the silicon content is 3.4%-4%, and the carbon content is 3.2%-3.6%. Its service life is not less than that of high manganese steel, but its cost is much lower, which has a good cost performance ratio.
Magnetic lining: It uses magnetism to absorb steel balls and magnetic materials to form a self-protective wear-resistant layer, thereby reducing the direct wear of the lining. It has the advantages of long service life, easy installation and maintenance, reduced mill operation load, and reduced noise, and is suitable for ball mills of various specifications.
Rubber: It has good elasticity and shock absorption performance, which can reduce the impact of steel balls on the lining, and reduce the vibration and noise of the equipment. It is suitable for occasions where high material grinding precision is required and equipment wear and noise are reduced, such as the fine grinding bin of cement mills and the grinding of ceramic raw materials.
Polyurethane: It has high strength and elasticity, good wear resistance, and good corrosion resistance and anti-aging performance. It is suitable for some ball mills with high environmental requirements and strong material corrosion, such as grinding of certain materials in the chemical industry.
High aluminum ceramics: It has good wear resistance, impact resistance and corrosion resistance. It is widely used in the inner wall lining of ball mills. It can effectively resist the impact and wear of abrasive particles on the inner wall and improve the service life of ball mills.
Silicon carbide ceramics: high hardness, good wear resistance, excellent thermal conductivity, and can withstand high temperature and acid-base corrosion. Suitable for high-speed ball mills and occasions with high requirements for abrasive particles, it can improve the working efficiency and product quality of the ball mill.
Zirconia ceramics: It has high hardness, wear resistance and corrosion resistance, and also has good thermal conductivity and insulation properties. It is suitable for processing abrasives with high hardness, high abrasiveness and high viscosity, and can effectively extend the service life of the ball mill.
Rubber composite magnetic lining: It combines the elasticity of rubber and the self-protection function of the magnetic lining. It has good shock absorption effect, can effectively reduce the wear of the lining, and improve the service life.
Metal composite magnetic lining: It uses metal as the matrix and a layer of magnetic material is composited on the surface. It combines the strength of the metal and the self-protection performance of the magnetic material, and has high wear resistance and reliability.
