VRM Vertical Coal Mill Working principle
The VRM Vertical Coal Mill’s main motor rotates the grinding disc through a speed reducer, while air enters the mill through the air inlet. The material falls through the discharge port of the screw feeder and lands at the center of the grinding disc. During grinding in the roller table, the grinding rollers crush large particles directly, while fine particles are squeezed to form a material bed, achieving inter-particle crushing.
The crushed material continues to move toward the edge of the grinding disc until it is carried away by the strong airflow from the air ring. Larger particles fall back onto the grinding disc for further crushing. The scraper removes the coarse particles and returns them to the grinding disc for further grinding. The qualified fine powder is discharged with the airflow and collected by the system’s powder collector. This collected powder is the product of the VRM Vertical Coal Mill. When debris such as iron filings mixed with the material moves to the edge of the grinding disc with the material, they are prevented from being lifted by the wind due to their own weight.
Maximino
From Saudi Arabia
"VEST mining equipment revolutionized our Saudi copper mine – handling 50°C desert heat without performance drops. The Arabic-speaking engineering team provided on-site training that cut our ramp-up time by 65%.After 18 months, their durable grinding mill show zero wear in our abrasive conditions. We consider VEST is a reliable partner for GCC mining projects. Would recommend them for friend."
Alexander
From Indonesia
"VEST has multiple projects in our area. I visited two of them, which gave me greater confidence in handing them over to us. Ultimately, our company purchased a VEST grinding mill production line, and the project passed inspection on the first try."
Jason
From USA
"After switching to VEST mining equipment, our productivity jumped 40% with half the maintenance costs. The German-engineered hydraulic system outperforms competitors in hard rock conditions.What truly impressed us was their 24/7 remote troubleshooting – a game-changer for our Denver iron ore site. Three years of zero unplanned downtime proves VEST’s ‘Built for Decades’ promise."