CHAENG GRM vertical roller mill is mainly composed of separator, grinding roller, rocker arm, grinding table, transmission device, lubricating device, hydraulic pressure device and so on. It has the integrated functions of grinding, drying, powder selecting and conveying, with innovative technologies of high grind efficiency, strong drying ability, low noise, low power consumption and simple process. GRM vertical roller mill is innovative, environmental friendly and efficient, and it has won a number of Chinese technical patents. Especially, The new “one mill, three uses” vertical mill developed in 2015 by CHAENG led Chinese vertical roller mill development to a high peak.
The material through the feed tube fell into the center of grinding plate, and then the materials outwards the surrounding area of grinding plate at centrifugal force, to forms a certain thick layer of materials bed, at the same time material was crushed by number of rollers. The materials continuous moving to the outer edge of the grinding plate, off the grinding plate materials rising with the hot air which enter from wind ring into the vertical roller mill, through the vertical roller mill shell into the middle of the separator, in this course materials and hot gas got a fully heat exchange, the water quickly evaporates. Separator controls the finished product output size, greater than the specified size are separated and fall back to the plate, while meet the fineness demands are brought through the separator into the finished product warehouse.
CHAENG can provide a variety of schemes for cement grinding, and make a choice according to the actual situation and needs of customers:
|Program recommended||Closed-circuit ball mill system||Combined grinding system||Vertical final grinding mill system|
|Cement proportioning ratio(%)||Clinker||90||90||90|
|Cement specific surface area (cm²/g)||3500||3500||3500|
|System power consumption (KWh/t)||41||33||28|
|Annual electricity savings (×10,000 Yuan)||—||400||700|
|Metal wear (g/t)||50 (Steel ball)||30 (Steel ball+Roller surface)||5 (grinding roller+grinding table)|
More than 100 customer cases of vertical mill production lines
CHAENG vertical roller mill is applied in many large production lines, playing an important rolls in slag, cement and other material production lines, such as: Shanghai Baosteel 1,500,000 tons /year composite powder (slag, steel slag) production line, Henan Meng Electric Group 1,000,000 tons/year GGBFS production line, Henbei Xinji 600,000 tons/year GGBFS production lines, Xuchang 300,000 tons/year EPC turnkey GGBFS production line, etc.
1. Large output, high efficiency, all parts are manufactured by CHAENG independently.
2. Grinding roller bearings are lubricated circularly with dilute oil, which can ensure the bearings’ work at lower temperature, and moreover the quality and purity of lubricating oil are controlled, conducive to prolonging the service life of bearings;
3. Equipped with roller turning device which can turn the grinding rollers out of the mill, to make maintenance easy;
4. Compared with other types of roller mills, GRM vertical mill hydraulic system has low operation pressure, low oil leakage fault rate and high safety and reliability;
5. The combined-type separator has high powder selection efficiency.
6. Adopts full closed design with little dust pollution.