LUM Vertical Roller Mill

product introduce:LUM series ultra-fine vertical grinding is based on 30 years' experience in the development and manufacturing of the fourth-generation grinding machine of liming heavy industry. Based on LM, it introduces the grinding roller technology of ultra-fine vertical grinding in Germany, which integrates grinding, drying, classification and transportation, and has become the mainstream equipment in the ultra-fine grinding industry.

Applications:calcium carbonate grinding, gypsum powder processing, power plant desulfurization, non - metallic mineral powder, coal powder preparation.

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Overview

LUM series ultra-fine vertical grinding is based on 30 years' experience in the development and manufacturing of the fourth-generation grinding machine of liming heavy industry. Based on LM, it introduces the grinding roller technology of ultra-fine vertical grinding in Germany, which integrates grinding, drying, classification and transportation, and has become the mainstream equipment in the ultra-fine grinding industry.

Features

1、Adopting the grinding principle of material layer, the material has a short stay time, less repeated grinding, less iron content, high whiteness and clarity.The grinding curve of the specially designed roller sleeve and lining plate can be ground to the required fineness (0.045-0.02mm).

2、Adopting the principle of multi-wheel powder selection, all rotors can be adjusted by frequency conversion, and the fineness of finished products can be achieved within the selected range.And production with the same fineness of finished products, compared with the ordinary mill energy saving 30-50%;The reproducibility is very high when multiple varieties are produced.

3、Adopt advanced working principles to reduce grinding time, reduce iron content of the final product, and improve whiteness and purity.

4、LUM adopts PLC/DCS automatic control system to save operator costs.

Working Principle

The drive hovers through the center air into the wind turbine disc, and hot air enters the mill from the inlet.Disk spinning, the effect of material in the centrifugal force, the edge of the plate movement, through a circular groove rolling and grinding the edge of the disc and the disc material crushing and high speed air flow from the air ring, large particle flows directly into the mill and separator materials, according to the rotation of the rotor and the impact of diet from cone bucket down heavy grinding, qualified powder and grinding wheel with air dust collecting device of collection, including dry matter, by adjusting the air temperature and moisture content of materials, to meet different needs, in order to achieve the ideal material products, contact with hot water and air.Product thickness can be achieved by adjusting the separator.

Specifications

Model Specification Name LUM1125X LUM1232X LUM1436X
Intermediate diameter of the millstone (mm) 1100 1200 1400
Quantity of the rollers(piece) 3 3 3
Granularity of the feeding material D90(mm) < 10 Max. 15mm < 10 Max.15mm < 10 Max.20mm
Moisture of the feeding material < 3%    
Capacity (t/h) 5~14 7~16 9~18
Fineness(mm) Generally in 0.045-0.02, the finest can reach 0.01.
Power of the main motor(KW) 250 315 355
Power of multiple powder concentrator & quantity 15KW×5 15KW×7 15KW×7