A detail guide on the workings of Ball Mill

Using balls of varying sizes, a ball mill is a kind of grinder that can reduce large quantities of material to Nano scale by grinding and blending. The decrease in size is accomplished by a combination of impact and attrition as the ball falls from near the top of a revolving hollow cylindrical shell. The basic concept is straightforward. The size of the nanostructure may be altered by changing factors such as the number of balls, their size, the material used for the surface of the cylinder, the rotation speed, and the material that is selected to be milled.

The materials are often crushed and ground into an extremely fine shape using ball mills, which are a standard tool for this purpose. The inside of the ball mill is comprised of a hollow cylinder shell that revolves around its axis. This cylinder is stuffed with balls that are either composed of rubber or stainless steel to correspond with the substance that is housed inside of it. Attritor, horizontal, planetary, high-energy, and shaker mills are the several categories that ball mills fall under.

Ball Mill manufacturer India provides a number of benefits.

1. It results in a very fine powder (particle size less than or equal to 10 microns).
2. Because it may be used in a form that is entirely enclosed, it is appropriate for the milling of hazardous materials.
3. Can be used in a variety of contexts.
4. It is capable of running continuously without interruption.

What is the operation?

A ball mill which is essentially just a hollow cylinder that is fixed or fitted into a metallic frame and then rotated along the axis that runs longitudinally of the mill. The cylinder is constructed out of metal and coated with chrome, although the vast majority of pharmaceutical businesses use rubber and porcelain instead of chrome to line their cylinders. The balls take up between between 30 and 50 percent of the mill’s capacity. Such balls may be constructed out of iron, steel, or even stoneware. They perform the function of a grinding medium, and their weight is maintained throughout the process.

In the mining industries for both metals and non-metals, as well as the construction material industry, ball mills are often used for the grinding of a wide variety of ores and rocks.

For ball mills with shell diameters between 900 and 2100 millimetres, the primary bearing is a spherical liner bearing. For ball mills with shell diameters between 2700 and 3000 millimetres, the primary bearing is a completely closed, self-aligning 120-bearing made from a robust alloy of significant lead and minimal tin with a low level of hardness, and it is laid on top of cooling copper piping that is full of water. The bearing uses a big and low pressure unified oil lubrication technology and has a construction that is designed to withstand static stress.

Let’s check its working more in detail

1. The amount of the feed material that is put into the cylinder is adjusted such that it takes up sixty percent of the total volume of the cylinder.
2. After a certain number of balls have been loaded into the mill, the cylinder is sealed off, and rotation of the mill begins.
3. It is essential to pay attention to the rotational speed. When moving at a slow pace, the balls will roll over each other, and the main kind of interaction that will take place is attrition.
4. Because the centrifugal force at high speeds causes the balls to be kind of tossed out to the walls, grinding does not take place when the speed is high. And in this scenario, the only thing that will happen is the balls will compress against the wall, which is not enough to cause a significant size decrease.
5. At the critical or optimal speed, the centrifugal force will take place, and as a direct consequence of this, the balls will be scooped up by the walls and brought to the top, after which they will fall back down to the bottom. The size reduction process is made more effective by the simultaneous occurrence of impact and attrition in this manner.

Bottom Line

A ball mill is a kind of grinder that may reduce materials to an extremely fine powder for use in various operations involving the mineral processing of ore. The size of the balls is reduced as they slope from near the top of the shell, and this is gotten by the impacting of the balls as they fall. Because Ball Mill manufacturer India have extensive industrial expertise in this area, they are able to provide Ball Mills of the highest quality. The ball mills that are provided by the specialists with the use of high-quality components and cutting-edge technology in accordance with the criteria established by the market. The customers can get this ball mill at a price that is competitive with the market after it has been thoroughly tested on a variety of quality factors to ensure that it will provide a high level of performance.