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Vertical Mill Grinding

Vertical Mill Grinding

How Vertical Mills work

With the development of the mining industry in recent years, the Vertical Mill has been widely used as a grinding equipment. The Vertical Mill is suitable for grinding various ores and other materials and is widely used in mineral processing, building materials and chemicals. In the industry, the Vertical Mill is the latter process of the entire grinding process, which directly determines the particle size of the product in the production process. So why does the Vertical Mill play such a big role, and how does it work? Let’s take a look.

1. The Vertical Mill is a horizontal cylinder. It consists of a hollow shaft and a grinding head. The cylinder is made of steel plate, and the liner made of steel is fixed to the cylinder. The shape of the body is a long cylinder. The cylinder is provided with an abrasive body. The grinding body is generally a steel ball. The grinding body is loaded into the cylinder according to different diameters and a certain proportion. The grinding body is not only only a steel ball, but also available. Steel section.

2. According to the material to be ground, the material is loaded into the cylinder by the hollow shaft of the Vertical Mill feeding end. When the grinding body rotates due to inertia, centrifugal force and friction, when the cylinder of the Vertical Mill is rotating, It can be caused to be carried away on the cylinder liner. When the abrasive body is brought to a certain height, it is thrown due to its own gravity. The falling abrasive body will give the material in the cylinder like a projectile.

3. The material enters the bin evenly, and the hollow shaft is spiraled through the feeding device. There is a step liner or corrugated liner in the bin, and the steel ball of various specifications is installed inside the cylinder, and the cylinder rotates to generate centrifugal force. After falling to a certain height, it will hit and grind the material. The main function of the warehouse is rough grinding. After the material reaches the rough grinding, the material enters the second warehouse through the single-layer compartment board. The second chamber is embedded with a flat liner and the inside has a steel ball, which will further grind the material. The powder is discharged through the discharge raft to complete the grinding operation.

4. In the process of turning the moving crusher cylinder, the sliding phenomenon of the grinding body will also occur, and the material will be grounded during the sliding process. In order to effectively utilize the grinding effect, the general size of the material is larger. When grinding, the body of the grinding body is divided into two sections by the partition plate, which becomes a double warehouse. When the material enters the warehouse, it is crushed by the steel ball. When the material enters the second warehouse, the steel section grinds the material and passes the fine. The material is discharged from the hollow shaft of the discharge end. When the material with small feed particles is ground, such as sand slag slag, coarse fly ash, Vertical Mill cylinder can be without a partition, and it becomes a single-cylinder barrel mill. The grinding body can also be made of steel.

5. During the operation of the Vertical Mill, the raw materials are ground into a hollow cylinder through a hollow journal, and the cylinder is filled with grinding media of various diameters. When the cylinder rotates around the horizontal axis at a certain rotation speed, the medium and the raw materials 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 Vertical 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.

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