The motor drives the grinding table to rotate through the reducer, so that the material falls into the center of the grinding table from the feeding port through the air lock feeder, and the hot air enters the grinding table from the air inlet at the same time. With the rotation of the turntable, under the action of centrifugal force, the material is carried to the edge of the grinding table by the high-speed airflow of the wind ring, and the large particles directly fall on the grinding table for re-grinding. Under the action, the coarse powder falls from the cone to the grinding plate for re-grinding, and the qualified fine powder is ground together with the airflow and collected by the dust collector, which is the product. The material containing moisture is dried in the process of contacting with the hot gas. By adjusting the temperature of the hot air, it can meet the requirements of materials with different humidity and achieve all the required product moisture. By adjusting the separator, the required thickness of different products can be achieved.

(2) What are the main features of LM Series vertical roller mills (vertical mills)?
1) Low investment cost
The vertical mill integrates crushing, drying, grinding, and grading and conveying, with simple system and compact layout.
2) Low operating cost
①High grinding efficiency: The grinding roller is used to directly crush and grind the material on the grinding disc, which has low energy consumption and saves energy consumption by 30% to 40% compared with the ball milling system.
②Less wear and tear: Because the grinding roller does not directly contact the grinding disc during work, and the grinding roller and the lining plate are made of high-quality materials, the service life is long and the wear and tear is small.
3) Strong drying ability
Since the hot air is in direct contact with the material in the mill, the drying ability is strong and energy is saved. By adjusting the temperature of the hot air, it can meet the requirements of materials with different humidity.
4) Simple operation and reliable operation
①It is equipped with automatic control system, which can realize remote control and easy operation.
②It is equipped with a device to prevent the direct contact between the roller sleeve and the lining plate of the grinding disc, which avoids destructive impact and severe vibration.
5) Stable product quality
Due to the short residence time of the material in the mill, it is easy to detect and control the particle size and chemical composition of the product, reduce repeated grinding, and stabilize the product quality.
6) Easy maintenance
By overhauling the oil cylinder, turning the boom, and replacing the roller sleeve and the lining plate, it is convenient and quick to reduce the loss of downtime.
7) The equipment is environmentally friendly, with low noise, less dust, and clean operating environment
The equipment has small vibration and low noise, and the equipment is sealed as a whole, the system works under negative pressure, no dust spills, the environment is clean, and it meets the national environmental protection requirements.