Vertical roller mill wear commonly used wear parts and function introduction

Vertical roller mill wear commonly used wear parts and function introduction

The vertical mill consists of several parts. Understanding the capabilities of these parts can help us better use and repair vertical milling equipment. Common components of vertical roller mill include roller devices, separators, grinding disc devices, pressure devices, reducers, motors, housings, and the like. The following is a detailed introduction to its common parts and functions.

Vertical mill separator

The separator is an important part of determining the particle size of the grinding. It consists of a driving device, a rotor, a vane, a shell, a coarse powder falling cone, a tuyere, and the like. It is two energy-saving, fast and efficient powder selection devices. The reducer is the main power transmission component, and the grinding wheel speed is the output shaft speed of the reducer.

Vertical grinding roller and grinding disc

Limestone, clay, sandstone, iron, steel and other materials (or clinker, gypsum, mixture, etc.) are used as raw materials. They will be based on a grinding mechanism, which is formed by 2 to 4 rolls and a grinding disc. The design is such that it has the necessary conditions to form a bed of equal thickness uniform material and a contact surface of the same pressure ratio. Roller bushings and clapper liners are made of high-strength, wear-resistant metal. This is very expensive and, after wear, is easy to position and maintain using a slow rotating device.

vertical roller mill

Vertical mill pressure device

The grinding principle of the vertical mill is different from that of the ball mill. It needs to be applied to the material crushing and grinding by means of the pressure mechanism of the grinding roller until it is into a fine powder. The modern large vertical mill uses a hydraulic device or a hydraulic opening device, which is pressed by a pendulum. A grinding roller is arranged below the pressure frame, and the two ends of the rod are hinged to the pressure frame. The other two ends are connected to the hydraulic cylinder piston rod, and the hydraulic cylinder drives the rod to the roller pressure and material crushing and grinding.