Environmental Protection Ball Mill Machine For Mineral Processing Industry

Product Specification

China Environmental protection high quality ball mill for your selection​​

Description:

    A Ball Mill is a type of grinder used to grind materials into an extremely fine powder mainly for use in the mineral processing industry. Ball Mills can grind various ores and other materials either wet or dry, depending on requirements. Ball Mills consist of a large cylinder which slowly rotates around a horizontal axis. The cylinder is partially filled with the material to be ground plus the grinding medium (metal grinding balls). Inside the cylinder, the medium will be lifted to a certain height under the action of centrifugal force and then drop or fall, grinding the ore in between the balls as they interact. Feed material to be ground enters the cylinder via a hopper on one end and after being crushed by the grinding medium is discharged at the other end.

Working principle:

    The ball mill is composed of a horizontal cylinder, a hollow shaft for feeding and discharging, and a grinding head. The cylinder is a long cylinder. The cylinder is provided with an abrasive body. The cylinder is made of steel plate, and the steel liner is fixed with the cylinder. Generally, it is a steel ball, and is loaded into the cylinder according to different diameters and a certain proportion, and the grinding body can also be used as a steel section.According to the particle size of the grinding material, the material is loaded into the cylinder by the hollow shaft of the ball mill feeding end. When the ball mill cylinder rotates, the grinding body acts on the cylinder liner due to the action of inertia and centrifugal force and friction. It is carried away by the cylinder. When it is brought to a certain height, it is thrown off due to its own gravity. The falling abrasive body crushes the material in the cylinder like a projectile.
    The material is uniformly fed into the first chamber of the mill by the feeding device through the hollow shaft of the feeding material. The chamber has a step liner or a corrugated liner, and various steel balls are loaded therein. The rotation of the cylinder generates centrifugal force to bring the steel ball to a certain extent. The height drops and then hits and grinds the material. After the material reaches the rough grinding in the first bin, it enters the second bin through the single-layer partition plate. The bin is embedded with a flat liner with steel balls inside to further grind the material. The powder is discharged through the discharge raft to complete the grinding operation.
    During the process of turning the cylinder, the grinding body also has a sliding phenomenon, and the material is grounded during the sliding process. In order to effectively utilize the grinding effect, when the general size of the material is 20 mesh, the grinding body is used. Separated into two sections by the compartment board, which becomes a double warehouse. When the material enters the first warehouse, it is crushed by the steel ball. When the material enters the second warehouse, the steel section grinds the material, and the finely qualified material is hollow from the discharge end. When the shaft is discharged, when the material with small feed particles is ground, such as sand slag slag, coarse fly ash, the mill cylinder can be without a partition, and it can be a single-cylinder barrel mill, and the grinding body can also use a steel section.
    The raw material is ground into a hollow cylinder through a hollow journal, and the cylinder is filled with grinding media of various diameters (steel balls, steel bars or gravels, etc.). When the cylinder rotates around the horizontal axis at a certain rotation speed, the medium and the raw material contained in the cylinder are separated from the cylinder by the centrifugal force and the friction force, and when the gravity reaches the certain height, when the gravity is greater than the centrifugal force. The body wall is thrown down or rolled down, crushing the ore due to impact. At the same time, during the rotation of the mill, the sliding movement of the grinding media to each other also produces a grinding effect on the raw materials. The ground material is discharged through a hollow journal.

Parameter:

Feature:

1. The main bearing adopts large-diameter double-row self-aligning stick bearing to replace the original sliding bearing, which reduces friction and reduces energy consumption. The mill is easy to start.
2. The end cover structure of the ordinary mill is retained, and the large-diameter inlet and outlet ports have a large processing capacity.
3. The feeder is divided into two types: a combined feeder and a drum feeder. The structure is simple and the body is installed separately.
4. No inertial impact, the equipment runs smoothly, and reduce the maintenance time of the mill stop and increase the efficiency.

Work site: