SRM Series Vertical Mill has combined the advanced Loesche technology introduced in German, MPS technique with innovative upgrading of our R&D team. For its low cost in operating, high quality of finished product, easy operation and easy maintenance, energy saving and environmental protection, LM series vertical mill is widely used in metallurgy, electric power, cement ash, flue gas desulphurization and waste utilization, and it also has predominance in the fields of non-metallic minerals, coal and slag.

Working principle:

Full set of vertical mill consists of: main unit, bucket elevator, adjustable hopper, sealed constant feeder, air heating furnace, dust remover, blower and silencer.

The motor drives the grinding table to rotate by reducer, and the hot air goes into the inner part of machine at the same time. The materials fall down to the center of grinding table from feed opening. Driven by the centrifugal force, materials move evenly to the edge of the grinding table, and they are grinded by the rollers when going through the rollers’ track. Bulk materials are crushed, while fine materials form material bed after being squeezed and experience intergranular crushing. Grinded materials move on to edge of the grinding table until being taken away by strong airflow at the wind ring, in which larger materials fall to the grinding table by gravity and reground. The others enter the separator being graded. Under the influence of separator blades, materials that do not meet fineness requirements return to the grinding table to be grinded, while the standard ones go into dust collector through the pipes and are discharged as finished products from the discharge device. Irons and other impurities, which cannot be lifted by the wind for weight, move together with materials to the edge of grinding table and fall to the lower cavity, and then they are scraped into the slag discharge opening by stripper plate which is fixed at the bottom of the grinding plate and discharged out of the machine.

1. Low investment and operating costs. it integrates grinding, drying, grading and delivering. Simple system and compact layout save floor space,which reduce cost greatly. Besides, it can work in the open air.

2. Transmission system is advanced, reliable and of high carrying capacity. Compared with traditional vertical mill, the drive reducer adopts new-type transmission structure, which gives the machine higher carrying capacity.

3.Hydraulic device makes maintenance more convenient. The most advanced hydraulic control system in domestic, which can adjust the pressure automatically as the change of grindability of the materials. It is not only energy saving but also lengthens the life span of roller sleeve and lining plate.

4.Thin oil lubrication makes it work reliably. The most advanced and independent lubrication station makes the whole device work more efficient and reliable.

5.Multiple classifier structures and wider range of application. The mill can be equipped with classifiers of different structural forms according to different materials and fineness requirements. The classifier adopts frequency control, which leads to more evenly particle size and more easily adjusted product fineness.

6.Electronic control system is more advanced and automatic. Advanced electronic control system enables the vertical mill to realize PLC, centralized and DCS system control.

7.Energy-saving and environmental friendly. It produces little noise when working. The dust density is much lower than the government standard after the products being filtered.