Recently, the installation and commissioning of the production line with an annual output of 80,000 tons of slag powder built by SBM has been completed!
At the beginning of the project, there were high specifications and strict requirements. After full technical research and repeated negotiations, SBM was finally selected and won the bid for the slag powder grinding project among many bidding units with high technical content, high cost performance and environmental protection.
The whole slag grinding plant of this project is designed by SBM, and the host equipment is LM series slag vertical roller mill. SBM adapts measures to local conditions and arranges design and construction reasonably. The whole production line has scientific and reasonable design, compact layout, intelligent and environmental protection, and truly allows customers to enjoy the economic benefits brought by high-efficiency and energy-saving new equipment and new technologies! Received unanimous praise from customers.
Project capacity: 80,000 tons/year
Processing material: slag
Finished product size: 150-200 mesh D90
Equipment configuration: LM vertical roller mill
Treatment process: dry method
Raw material source: self-generated solid waste from the Group's thermal power plant
Finished product use: new marble material
Slag grinding is an important part of slag powder production. Its grinding efficiency and grinding quality directly affect the cost and quality of slag grinding production. As the core equipment in the production process of slag grinding, the LM slag vertical roller mill of SBM integrates fine crushing, grinding, drying, powder selection and transportation, ensuring the continuity and stability of slag powder production and improving the efficiency of slag grinding.
1. The slag raw materials are transported into the factory by loading trucks, and sent to the slag shed for storage and drying through the unloading hopper and belt conveyor. The stacked slag is picked up by a forklift, and is conveyed to the hoist by a belt conveyor after being measured by a hopper and a quantitative feeder.
2. During the conveying process, the slag raw materials are iron-removed and screened successively through the iron remover and the vibrating screen, and then sent to the LM slag vertical mill for grinding through the conveying equipment and other wind-locked feeding equipment.
3. The ground slag powder is separated by the powder separator with the help of hot air provided by the hot blast stove, and is dried at the same time. The slag powder that meets the fineness requirements is collected by the dust collector, and then transported by the air chute and elevator into the finished product warehouse for storage.
Large functions are integrated in one, occupying an area of about 50% of the ball mill system, and can be arranged in the open air, greatly reducing investment costs; the system design is simple and reasonable, saving the total investment in equipment funds.
Stable operation, simple maintenance, lower energy consumption, stronger drying capacity, lower wear of core parts and more convenient maintenance, saving the operating cost of customers' equipment.
The material stays in the vertical roller mill for a short time, reducing repeated grinding and facilitating the stability of product quality; At the same time, the grinding roller and the grinding plate are not in direct contact, and the iron content in the product is low. The high efficiency powder concentrator with dynamic and static combination is adopted, the rotor is adjustable, the separation efficiency is high and the quality of the finished product is guaranteed.
The vertical roller mill is integrally sealed and works under negative pressure, no dust spillage, clean environment, and the emission standard can reach ≤10mg/Nm³; at the same time, it is equipped with a limit device to avoid destructive impact and severe vibration, and the equipment runs stably with small vibration and low noise Low.
Equipped with automatic control system, it can realize the free switch between remote control and local control, which is easy to operate and saves labor; Equipped with automatic lubrication system, it can realize 24-hour non-stop production.
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