Coal Vertical Mill Vertical Coal Grinding Equipment 60 t/h, Coal Vertical Mill Fineness Capacity Can Be Customized
Product Introduction:

Coal vertical mill can be widely used in industries such as cement, electricity, steel, metallurgy, etc. Due to its special process and structure, the coal vertical mill has low dust and noise during the production process, and the produced coal powder has efficient grading and excellent combustion performance. The GRMC series coal vertical mill produced by Great Wall Machinery has a simple process, compact equipment, and a coal powder fineness of up to 80% μ MR 3%, with stable fineness and uniform particle size.

Introduction to Coal Mill Process
The raw coal (with a comprehensive moisture content controlled below 15% and a particle size requirement of ≤ 50mm) is dropped into the center of the grinding disc through a feeding pipe. With the help of the centrifugal force of the constant speed rotating grinding disc, the raw materials are evenly dispersed and flattened outward, forming a certain thickness of material bed. The materials are simultaneously crushed by multiple grinding rollers on the grinding disc.
Under the continuous action of centrifugal force, the material continuously moves towards the outer edge of the grinding disc. When the material leaving the grinding disc encounters hot gas entering the mill through the wind ring and rises, it enters the separator through the middle shell of the mill. During this process, the material undergoes sufficient heat exchange with the hot gas, and the water is quickly evaporated, thereby drying the material in and out. The powder selection machine controls the particle size of the finished product at the outlet of the mill. Particles larger than the specified size are separated and returned to the grinding disc for grinding. Materials that meet the fineness requirements are fed into the finished product warehouse through the powder selection machine.

Advantages of HVM type vertical coal mill
Large production capacity, low energy consumption, green and environmentally friendly;
By using flat cone rollers, the mill operates more smoothly, with higher grinding efficiency and lower failure rate, making it safer and more reliable. It is easy to operate and manage, suitable for various types of raw coal;
It can automatically lift and drop rollers, and can achieve empty (light) load starting;
The grinding roller bearing adopts a thin oil circulation lubrication method, which can ensure that the bearing operates at lower temperatures and is beneficial for extending the service life of the bearing:
The setting of the limit mechanism ensures a certain distance between the grinding roller and the grinding disc, avoiding wear-resistant parts and metals
Equipped with a flipping roller device, the grinding roller can be flipped out of the mill for maintenance, which is convenient and fast.

Parameter Table of Coal Vertical Mill