Have questions? SBM sales representatives are available for live chat now WELCOME TO SBM MACHINERY!

Limestone Grinding Mill

Limestone Grinding Mill

Factors Affecting the Working of Grinding Medium on Limestone Grinding Mill

The factors that the grinding media work on the Limestone Grinding Mill mainly include the shape, size, ratio, filling rate and replenishment of the medium. The following is a brief introduction for you:

Effect of media shape: Which media shape is good for the crushing process is still a controversial issue. However, spherical media which are easy to manufacture and have a shape that does not change during the crushing process are generally used. The shape of the medium determines the processing cost of the medium and the feasibility of processing, from the perspective of large-scale industrial applications. Spherical and cylindrical media are easy to process. In the ultrafine grinding process, spherical microbeads can only be used due to the small particle size of the medium. The sphere has a small specific surface area and is therefore also abrasion resistant.

Effect of media size: The size of the media in the crushing system of the media grinding is combined with the needs of the comminution process. If the feed size is relatively large, the impact of the medium is required to break it, then the ball is larger. The ball diameter of the ball in a large Limestone Grinding Mill in a metal mine can be as large as 250 rnm.

In the ultra-fine crushing process, it is especially necessary to emphasize the formation of fine powder. It is necessary to strengthen the grinding effect of the medium on the material to reduce the particle size of the grinding medium to enhance the grinding effect on the material. In the use of ultra-fine agitating mills, small grinding media can be up to 0.5 mm in diameter.

Effect of media ratio: Since different sizes of media play different roles in the grinding process, the media is always added to the Limestone Grinding Mill according to a certain ratio. As a discontinuous distribution of media ratio, it is difficult to introduce it into a mathematical model for optimization calculation.

Influence of medium filling rate: A large number of experiments in the past have proved that the suction power of the Limestone Grinding Mill is directly related to the filling rate, and reaches a large value when the filling rate is 50%. Although the mill output is proportional to its power consumption, it is debatable whether the Limestone Grinding Mill draws a large amount of power to a good value. Under different crushing fineness requirements, it is necessary to adjust the capacity distribution of the impact crushing and grinding crushing of the medium.

In the ball milling process that requires ultra-fine crushing of the material, it is desirable to give full play to the grinding action of the medium and the pressure on the material. At this time, a high filling rate can be used to enhance the grinding of the medium, and sometimes the filling rate of the medium can be as high as 80%. At the higher filling rate, while the grinding action of the medium is enhanced, the starting torque and the shaft power of the Limestone Grinding Mill are also reduced due to the increase of the center of mass of the medium.

The influence of the material of the Limestone Grinding Mill: The material is an important problem for the grinding and crushing process, which determines the cost of the crushing process and the efficiency of the crushing process. From the point of view of the pollution of the product: the medium is continuously consumed during the crushing process, and the consumed medium becomes a fine powder dispersed in the material that is ground and broken.

Therefore, the material of the medium should not first have any pollution to the material, at least it does not contain pollution that cannot be removed. This is particularly important for material breakage in fine ceramics, non-metallic minerals and the chemical industry.

Get Price And Support

Simply complete the form below, click submit, you will get the price list and a SBM representative will contact you within one business day. Please also feel free to contact us by email or phone. ( * Denotes a required field).