HVM slag vertical mill is a specialized equipment for industrial waste slag powder production, which integrates crushing, drying, grinding, and grading transportation. The system is simple, compact, and covers an area of about 50% of the ball milling system. It can be arranged outdoors, thus greatly reducing investment costs; Moreover, the grinding roller directly crushes and crushes the material on the grinding plate, resulting in low energy consumption and saving 30% to 40% energy compared to the ball milling system.
The grinding roller can be turned out of the machine using a hydraulic device, and the replacement of the roller sleeve liner and the maintenance space of the mill are large, making the maintenance operation very convenient.
The proprietary grinding roller sleeve can be used upside down, extending the service life of wear-resistant materials.
Before starting the machine, there is no need to apply fabric to the grinding disc, and the mill can be started without load, eliminating the difficulty of starting the machine.
Equipped with a grinding roller limit device to avoid severe vibration caused by material breakage during the working time of the mill.
Due to the action of hydraulic devices and limit devices, the gap between the grinding roller and the grinding disc can be adjusted to a constant gap with wear, which increases the grinding pressure and stabilizes the production.
Equipped with a new type of roller sealing device, the sealing is more reliable and does not require a sealing fan
The proprietary grinding roller shaft is lubricated with thin oil and adopts cyclic forced lubrication, which is stable, reliable, and has a long service life.
The powder selection machine adopts frequency conversion control, which facilitates and quickly adjusts the fineness and stabilizes the particle size.
The industries where HVM vertical grinding machines are applied include building materials, electricity, steel, energy, heating, chemical, coal chemical, non-ferrous metallurgy, lime kilns, mineral processing, and other industries.

Working principle:

The electric motor drives the grinding disc to rotate through a reducer, and the material falls into the center of the grinding disc from the feeding port. At the same time, hot air enters the grinding chamber from the air inlet. Under the action of centrifugal force, the material moves towards the edge of the grinding disc and is crushed by the grinding roller when passing through the circular groove on the grinding disc. The crushed material is carried up by the high-speed airflow at the edge of the grinding disc, and large particles directly fall onto the grinding disc for re grinding. When the material in the airflow passes through the dynamic and static separator, under the action of the rotating rotor, the coarse powder falls onto the grinding disc for re grinding, and qualified fine powder is discharged with the airflow, Collect in the powder collection device, which is the product. Materials containing moisture are dried during contact with hot gases to achieve the required product moisture.

Technical Data

Engineering Cases
Annual production line of 300000 tons of slag powder
Project supply content: Process design and equipment manufacturing supply of HVM2800S slag vertical grinding system
Processing material type: slag
Design processing capacity: ≥ 45t/h
Actual processing capacity: ≥ 55t/h
Product fineness: specific surface area ≥ 420 cm ²/ G