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Home > News > What is the reason why the output of limestone grinding machine cannot reach?

What is the reason why the output of limestone grinding machine cannot reach?

fxy/ Release time : 2023-06-09

The main component of limestone is calcium carbonate, which is used in large quantities for construction and industrial materials, and a small amount for pharmaceutical industry. Limestone grinding mill is usually used in vertical mill, mainly for limestone, barite, calcite, potassium feldspar, bentonite, cement, kaolin, Mohs hardness less than 9.3, humidity of 6% or less 280 a non-flammable, explosive materials. So in the production of limestone grinding machine, if the production efficiency does not reach, how to solve?

Vertical Grinding Mill

The electric system of limestone mill is centrally controlled, which can be operated unmanned during peak periods and is easy to maintain. LM series vertical mill mainly consists of grinding roll assembly, grinding disc assembly, hydraulic station, transmission arm assembly, powder selector, main reducer, motor, body, main reducer lubrication station, hydraulic station, PLC electric control cabinet and other parts.

When working, the main motor drives the grinding disk through the reducer, while the hot air enters the vertical mill body from the air inlet, and the material falls in the middle of the grinding disk from the lower material inlet, under the action of centrifugal force, the material moves evenly from the middle to the edge of the grinding disk, and when passing through the grinding roller channel area on the grinding disk, it is crushed by the grinding roller, and the large pieces of material are directly crushed, and the fine particles are crushed by the extrusion to form the material bed for intergranular crushing. The crushed materials continue to move to the edge of the grinding plate until they are taken away by the strong airflow at the wind ring, while the larger granular materials fall back to the grinding plate to continue to be crushed, and the materials in the airflow pass through the upper separator, under the action of the rotor blades, the coarse particles return to the grinding plate for grinding, and the qualified fine powder comes out of the mill with the airflow and is collected by the system's powder collector, and the powder collected is the product of the vertical grinding. Iron and other debris mixed into the material with the movement of the material to the edge of the grinding plate, due to its own weight and can not be blown up by the wind, fell to the lower cavity of the mill by the scraper installed in the bottom of the grinding plate scraped into the slag discharge mouth out of the machine.

Usually, the efficiency of the limestone mill will be greatly affected because the seal of the powder collector is not good, there will be a backflow of powder, resulting in no powder, or less powder, so check the seal of the powder collector of the mill and adjust the degree of sealing. In addition, the grinding blades of the limestone mill are severely worn, will not be able to be graded, at this time the powder will be too coarse or too fine; the mechanical shovel knife will also produce wear after a period of time, when the wear is too large, it will not be able to shovel up the material, thus causing the inability to produce powder or powder, thus causing the wear of the grinding parts, thus reducing the output of the limestone mill.

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