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New type Pre-grinding Vertical Rolelr Mill
PRM type Vertical Roller Mill
(New type pre-grinding vertical roller mill)

    PRM vertical roller mill is: three symmetrical rotating roller will rotate comply with disc to cut, extrude and grinding the material on disc with the function of high pressure, its special roller shape design and material layer grinding technology, greatly reduced power consumption for each unit and it is widely used for material grinding process in building material, metallurgical, chemical industries, etc. While it could be utilized together with ball mill to be circular pre-grinding, circular classifying & pre-grinding and final grinding system. Integrative grinding power consumption decreased 30% - 50%, while the production increased 50% - 100% which implements the target of energy saving, emission reduction, high production & low consumption of high efficient grinding, and it has really high economical and social benefit.   

PRMvertical roller mill is mainly composed of motor, reducer, disc, roller, hydraulic device, lubricating device, etc. Material will enter into centre of disc via feeding chute, then they will be thrown into grinding area with the function of centrifugal force caused by the rotating of disc and material will be extruded and grinded by pressed roller. Grinded material will fall into the lower part of cover via outer section of disc, then they will enter into discharging chute by scraper and be discharged. The characters of this system:

 1. Roller utilizes forced lubricating oil feeding type to efficiently avoid powder entering into bearing and utilizes double sealing mechanism of forces venting air seal and reinforced seal.
 
2. Liner of disc and surface of roller utilize high-chromium iron with longer useful life (>30000Hr), and it is easy to change.
 
3. Reducer utilizes hydrostatic lubricating system, utilizes sensor to monitor the oil pressure and oil temperature of thrust bush to ensure the stability of operation.
 
4. Hydraulic oil station utilizes batch & following working method, configures advanced following monitoring elements to have continuous and uninterrupted check on the operating status of equipment, improves the system operating condition and extends the useful life of elements.
 
5. Improve production and reduce consumption and the effect is obvious. Utilizing this equipment for grinding process implements that the new grinding technology with extruding and cutting force is widely promoted, which has better grinding effect compared to current roller presser. And the cement raw material grinding capacity could increase 100%, cement clinker producing capacity could increase 50% while power consumption could decrease 30% - 40%, and it formed the grinding system with ball mill which makes the regulating range of product fineness wider and the cement compressive strength obviously be improved.

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    Jiangsu Pengfei Group Co., Ltd has the great comprehensive ability to provide the best quality services on turn-key basis with the complete equipment、 the installation and the debugging for the new type dry process rotary kiln cement factories under the daily capacity of 8000ton、5000ton and 2500ton and compound fertilizer plants under the annual capacities of the 300000ton. The “Pengfei” brand rotary kiln cement complete equipment have been sold exported to Russia、The Kingdom of Denmark、Germany、kazakhstan、Mongolia、Ukraine、Uruguay、uzbekistan、 Bangladesh、Pakistan、Laos、Peru、India and so on . MD export project are X18, X519, Son La, Lang Son, Da Ye, Chai Shai Cement factories in Vietnam, Tiger-Head, King Elephant Cement Plants in the union of  MD and so on . All of these cement complete equipment production line have been widely praised by the international friends.
       The key words are : Jingsu Pengfei Groupcement machinerycement equipmentcement machinery equipment、cement complete equipmentcement machinery complete equipment、mining equipment、Tube mill、Ball mill、Cement mill、Coal mill、Slag mill、Raw mill、Mining mill、vertical mill、roller press 、grinding equipment. The leading products are the cement machinery equipment such as  the “Pengfei” brand rotary kilnball millTube millCement mill、Coal mill、Slag mill、Raw mill、Mining mill、cooler、vertical millroller press、grinding equipment、conditioning tower、dust collector、shaft mill、rolling machine、drier、crusher and conveyor and so on.
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