High Capacity Vertical Roller Grinding Mill Equipment
Application of vertical roller grinding mill equipment:
Vertical roller grinding mill equipment are suitable for huge capacity producing, widely used in grinding non-flammable and non-explosive materials under 9.3(the Moh's hardness), such as quartz, feldspar, calcite, talcum, barite, fluorite, iron ore, copper ore quartz, especially for slag, cement clinker, zircon sand, fly ash and carborundum, coal, etc.

Advantages of vertical roller grinding mill equipment:
1. Grinding mill equipment in the market designed as a cement grinder and not a modified raw mill
2. Simple layout and fewer machines in the mill circuit ensure high run-factor and low maintenance costs
3. Roller and table profile improve operating stability and reliability
4. Special design features for iron removal during grinding minimize wear
5. Optimal wear protection on all internal surfaces extends lifetime
6. Flexibility to operate with reduced number of rollers guarantees long-term availability
7. Segmented roller wear parts made of the hardest possible material without the risk of cracking; very suitable for hard facing
8. High grinding efficiency: save 20~30% power consumption compared with the ball mill. With the increasing of moisture content, it can save more and more electricity.
 
Working Principle of Vertical Roller Grinding Mill Equipment:
The grinding disc is driving by motor through reducer. The material falls to grinding disc from the feed opening. The materials are driven to the edge of disc by the centrifugal force and crushed into fine powders by rollers. Then, the hot air from the nozzle take the fine powder to high efficiency classifier. The qualified powder is taken by the air to the powder collector to be collected, while the unqualified powder is sent back for regrinding.
vertical roller grinding mill
 
Technical data of vertical roller grinding mill equipment:
Model HRM53 HRM38 HRM36 HRM34 HRM32 HRM28 HRM27 HRM25 HRM22 HRM17
Grinding disc diameter (mm) 5300 3800 3600 3400 3200 2800 2700 2500 2200 1700
Amount of grinding rods 4 4 4 4 4 3 3 2 2 2
Installation power(kW) 3600~4000 2000~2500 1800~2240 1600~1800 1400~1600 800~1250 800~1000 710~900 400~500 200~250
Power of powder separator(kW) 200 132 110 90 90 75 55 45 30 15
Max feeding size (mm) ≤100 ≤85 ≤80 ≤70 ≤70 ≤70 ≤65 ≤70 ≤50 ≤40
Feeding moisture (%) 6 6 6 6 6 6 6 6 6 6
Moisture of final products (%) 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Grindability index of raw materials (Wi) 7.5~13 7.5~13 7.5~13 7.5~13 7.5~13 7.5~13 7.5~13 7.5~13 7.5~13 7.5~13
Productivity (t/h) 330~510 185~280 170~260 140~210 125~190 85~130 78~120 60~90 40~65 22~33
 
Model HRM1300M HRM1400M HRM1500M HRM1700M HRM1900M
Grinding disc diameter mm Φ1300 Φ1400 Φ1500 Φ1700 Φ1900
Output T/H 10-15 12-17 16-22 20-28 26-35
Feeding size mm 0-40 0-40 0-45 0-50 0-55
Feeding moisture  % <15 <15 <15 <15 <15
Product fineness  % 8-12 8-12 8-12 8-12 8-12
Product moisture  % <1 <1 <1 <1 <1
Power of main motor  Kw 200 200 280 315 400
Feeding ar temperature ℃ <450 <450 <450 <450 <450
Discharge air temperature ℃ 80-95 80-95 80-95 80-95 80-95
Air discharging volume  M3/H ~40000 ~45000 65000 80000 100000
Weight   T 45 52 75 96 100

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