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Working Principle and Performance of Limestone Grinding Mill

2017/11/28 22:03:32

Due to the broad application prospect of limestone powder, many grinding mill manufacturers have developed the grinding mill specifically for limestone powder production according to the proper physical and chemical properties of limestone, it is called limestone grinding mill or limestone mill. The limestone grinding mill is suitable for processing non-flammable and non-explosive materials with Mohs hardness below grade 7 such as the limestone, calcite, chalk, dolomite, kaolin, etc. Then, how to grind limestone by using the limestone mill? What are the main performances of limestone grinding mill? In the following part, let's take the limestone grinding mill produced by the grinding mill manufacturer-Hongxing Machinery as an example to find the answers.

limestone grinding mill

How to grind limestone?

The working principle of HXJQ limestone grinding mill is introduced as follows: First of all, the large-sized limestone is sent into a jaw crusher for coarse crushing. And the crushed limestone is sent into a storage bin through a bucket elevator, then it is evenly fed into the limestone mill by the electric-magnetic vibrating feeder under the storage bin. The material that entering the host of grinding mill revolves both round the vertical axis and on its own axis depending on the grinding roller which is hanging on the grinding mill star rack. Because of the centrifugal force of rotation, the grinding roller swings outward and compacts on the grinding ring. The grinding mill shovel blade scoops up the material to the grinding roller and grinding ring. Finally the limestone grinding mill reaches the purpose of crushing limestone by the rolling compaction of grinding mill roller.

The performances of HXJQ limestone grinding mill

1. High-efficient and energy-saving

Under the condition of the same fineness of finished products and the same power of the motor, the output of HXJQ limestone grinding mill is more than twice as high as the output of airflow mill, stirring mill and ball mill.

2. The vulnerable parts with long service life

The grinding roller and grinding ring of HXJQ limestone grinding mill is made of the high wear-resisting material, which can greatly improve their utilization. In case of the same type of material and the same fineness of finished product, the vulnerable parts service life of HXJQ limestone mill can be more than one year, which is 2 to 5 times longer than that of the turbine grinder and sand maker. When processing the calcium carbonate and calcite, the vulnerable parts service life of HXJQ limestone mill can be up to 2~5 years.

3. High safety and reliability

Because there is no rolling bearing and no screw in the grinding chamber of HXJQ limestone grinding mill, thus the problems that the rapid wear of grinding mill bearing and sealing parts as well as the screw loosening to damage machine do not exist.

4. Uniform product fineness and high screening rate

The fine degree of the finished limestone powder is uniform and the screening rate of HXJQ limestone mill is as high as 99%, which is difficult for other grinding mills.

5. Environmental protection

HXJQ limestone grinding mill is equipped with the pulse dust catcher to capture dust and the sound eliminator to reduce the noise, so it has the characteristic of environmental protection.