High Efficiency Vertical Slag Mill China Grinding Equipment Manufacturers

Slag, as a byproduct of industrial processes, is generally considered waste, but it itself contains a large amount of resources. The rational utilization of slag resources not only reduces environmental pollution but also achieves the goal of recycling and reuse.
1. Cement production: Slag can be used as a mixed material for cement production. The active components in the slag can react with colloids to form cementitious substances, thereby improving the early and long-term strength of cement.
2. Concrete products: Slag can be used as an admixture for concrete. After adding slag powder, its strength, durability, and crack resistance are greatly improved.
3. Embankment engineering: Embankment engineering can use slag as embankment filling. Using slag to build roads can improve the stability and bearing capacity of the foundation, reduce the settlement and deformation of the foundation.
4. Silicate substances: Silicon, aluminum, and other elements extracted from furnace slag can be used to manufacture silicate substances such as ceramics, glass fibers, refractory products, etc.
If we want to achieve effective utilization of slag resources, we can use a vertical slag grinder to grind the slag into powder, thereby obtaining our slag micropowder. Applying slag powder to fields such as recycled building materials and filling materials can not only achieve efficient utilization of resources, but also reduce adverse effects on the environment.

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

Advantage
(1) The material is mainly broken and ground by the weight of the grinding roller and the pressure of the pressure device. During the grinding process, the material is always subjected to the pressure of the grinding roller, and the rolling between the grinding roller and the grinding disc is not pure. The material is subjected to multi-directional stress, thus improving the grinding ability and efficiency of the mill.
(2) Due to the fact that the material comes into full contact with the hot gas after entering the mill, and is then suspended in the hot gas after grinding, it can effectively exchange heat energy and dry the material while grinding.
(3) The grinding pressure of the grinding roller is provided by the hydraulic system, which is transmitted to the grinding roller through the pressurization device and rocker arm device, and then applied to the material. By adjusting the pressure of the hydraulic system, the size of the grinding pressure is changed to meet the requirements of grinding materials with different hardness.
(4) In order to avoid severe vibration caused by direct contact between the broken material grinding roller and the grinding disc during the operation of the mill, there should be a certain gap between the grinding roller and the grinding disc. Therefore, a limit device was designed to control the size of the gap, and the thickness of the material under the grinding roller can be known at any time through the limit device, thereby ensuring that the mill operates under safe and economical working conditions.
(5) The roller sleeve and grinding disc lining plate are made of high hardness alloy wear-resistant materials, which have low wear and long service life.
(6) The grinding roller can be flipped out of the machine with the help of an auxiliary oil cylinder, making replacement and maintenance very convenient.
(7) A device is installed around the grinding disc to prevent the wear of the disc seat, adjust the wind speed at the air ring, and ensure the production capacity and economic operation of the vertical mill.
(8) The separator is composed of a frequency converter motor, a reduction mechanism, a rotor, a shell, and other parts. The motor drives the separator rotor to rotate through a deceleration mechanism, and obtains products of different fineness by adjusting the motor speed.

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