Installation details of cement ball mill cylinder

The cylinder ofcement ball millis made of high strength, good plasticity and good weldability metal materials. Most of them are made of ordinary steel structure. The cylinder of large-scale ball mill is made of 16Mm steel. The main reason is that the elastic strength of this material is 50% higher than ordinary, and corrosion resistance, impact toughness is much better, especially at low temperatures, the performance is better. In processing, it can be cut and welded conveniently, and the material is wearable and wearable. Because the cement ball mill is running at high speed for a long time, the axial deformation of the equipment is caused by the different temperature of the cylinder. This is the function of thermal expansion and cold contraction. The discharging end is not allowed to change any axial direction because it is close to the transmission device. This is to ensure that the gear can normally engage. Therefore, only the feed end can be designed to adapt to the axial heat generated structure.

There are two ways to adjust the axial deformation: the position of the journal shoulder of the hollow bearing and a certain gap between the bearings are reserved during installation; or a few steel rollers are installed horizontally between the bearing seat and the floor, and the main bearing base of the feeding end can move along the steel rollers when the cylinder is heated up and down. Cement ball mill is composed of horizontal cylinder, hollow shaft and grinding head. The cylinder is a long cylinder. The cylinder is made of steel plate. The steel lining plate is fixed with the cylinder. The grinding body is generally made of steel ball and is loaded into the cylinder according to different diameter and certain proportion. The grinding body can also be used as steel section. When the cylinder rotates, the material and the ball are close to the lining plate under the action of centrifugal force. Due to the action of friction, the cylinder takes the material and the ball to a certain height. Under the action of gravity, the ball and the material fall at the same time, and the ball smashes the material. At the same time, sliding friction occurs between the material and the lining plate, which produces a grinding effect on the material, so as to achieve the purpose of grinding the material.