The hydraulic cylinder of the coal mill

The coal mill is primarily used to grind coal or similar solid materials into smaller powder or granular states, commonly employed in industries such as steel mills, chemical plants, power plants, and paper mills that require the refinement of coal.

Hydraulic cylinders in coal mills are commonly used to regulate the pressure on grinding discs or wheels, aiding in controlling the coal pulverization process to achieve the desired fineness. Besides pressure regulation, hydraulic cylinders are utilized for motion control, pressure adjustment, safety control, and various other aspects. Different designs of coal mills may incorporate hydraulic cylinders depending on their specific requirements.

Due to the operation environment of the hydraulic cylinder in the coal mill, there are more powder particles, and the piston rod surface treatment and mechanical strength need special attention due to the continuous reciprocating motion of the hydraulic cylinder. Additionally, considering the external environment's dirt and pollution, it is necessary to choose seals with high wear resistance and good sealing performance.

Since coal typically contains sulfur compounds, its combustion produces sulfur dioxide, which, when dissolved in water, forms sulfuric acid (a major component of acid rain). Prolonged exposure to such conditions can lead to corrosion of equipment components. Therefore, hydraulic cylinders used in coal mills should pay special attention to corrosion resistance. Our produced hydraulic cylinders for coal mills are designed, material-selected, and processed with considerations for different usage environments, enhancing the durability of the hydraulic cylinders appropriately.