Vertical Roller Mill
CathayPhillips Vertical Roller Mill is a new kind of large scale power mill which is designed specially to solve the problems of low capacity and high consumption of industry mills. With a decade of years’ research of mills, Vertical Roller Mill is designed and manufactured based on our advanced design idea, and in combination with the European technology and the market demand. It adopts reliable structure and reasonable process flow, integrated with drying ,milling, classifier , elevator. Especially ,it can fully meets the requirement of clients in the high production of powder and its main technical and economy indicator reaches the international level.
Vertical Roller Mill For Cement Processing
Vertical Roller Mill
The second phase is handled in a cement grinding mill, our vertical roller mill may be located in a different place to the clinker plant. Gypsum (calcium sulphates) and possibly additional cementitious (such as blastfurnace slag, coal fly ash, natural pozzolanas, etc.) or inert materials (limestone) are added to the clinker. All constituents are ground leading to a fine and homogenous powder. End of phase two. The cement is then stored in silos before being dispatched either in bulk or bagged.
Vertical Roller Mill Design Advantages
- Simple layout and fewer machines in the mill circuit ensure high run-factor and low maintenance costs
- Roller and table profile improve operating stability and reliability
- Special design features for iron removal during slag grinding minimise wear
- Optimal wear protection on all internal surfaces extends lifetime
- Flexibility to operate with two or four rollers guarantees long-term availability
- Segmented roller wear parts made of the hardest possible material without the risk of cracking; very suitable for hardfacing
- Segments are reversible, enabling use of their full width for maximum longevity
Vertical Roller Mill Key Benefits
1. 20-50% less energy use than ball mill systems
2. For portland cement, slag and blended cements
3. High productivity with stable, reliable operation
4. Easy maintenance; low maintenance costs
5. Effective drying when grinding blast furnace slag or blended cements with wet components
6. Consistent cement quality with easy-to-adjust quality parameters
Vertical Roller Mill Major Maintenance
Major jobs include reversal/change of segments and/or hardfacing. A full hardfacing usually takes 3-4 days. For clinker grinding, hardfacing is usually required annually; for slag grinding, expect to hardface every 3-4 months.
The mill’s swing-in/out roller support system makes it easy to maintain the rollers and suspension system.Swinging one roller out and changing the seals takes 24 hours, while changing a hydraulic cylinder takes 10-16 hours.The mills have 2 access doors for ease of maintenance, and entry is possible as soon as the mill is stopped. Any jobs done inside the mill have to wait until it is cooled down – typically 3-4 hours.
Vertical Roller Mill Specification
| Model | LM130K | LM150K | LM170K | LM190K | LM220K | LM240K | |
| Medium diameter(mm) | 1300 | 1500 | 1700 | 1900 | 2200 | 2400 | |
| capacity(t/h) | 10~30 | 13~40 | 18~57 | 23~72 | 36~114 | 41~128 | |
| Finished size | μm | 170~45 | 170~45 | 170~45 | 170~45 | 170~45 | 170~45 |
| Item | 80~325 | 80~325 | 80~325 | 80~325 | 80~325 | 80~325 | |
| Humidity of the finished | ≤1% | ≤1% | ≤1% | ≤1% | ≤1% | ≤1% | |
| Max feeding size(mm) | <38 | <40 | <42 | <45 | <50 | <55 | |
| Best Humidity of Raw material | <4% | <4% | <4% | <4% | <4% | <4% | |
| Drying Humidity amount of Raw material | <15% | <15% | <15% | <15% | <15% | <15% | |
| Air Inlet Temperature(℃) | <350 | <350 | <350 | <350 | <350 | <350 | |
| Air outlet Temperature(℃) | 70~95 | 70~95 | 70~95 | 70~95 | 70~95 | 70~95 | |
| Power of main motor(KW) | 185~220 | 250~280 | 355~400 | 450~500 | 710~800 | 800~900 | |
| Overall Dimension(mm) | Lengthmm | 3500 | 4200 | 4700 | 8500 | 10200 | 11700 |
| Widthmm | 3400 | 3900 | 4500 | 5600 | 6700 | 7700 | |
| Hightmm | 5800 | 7100 | 8300 | 8800 | 10600 | 12200 | |
Note : Any change of technical data about vertical roller mill shall not be advised additionally.
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