Cement Grinding Vertical Roller Mills Versus Ball Mills

Cement Grinding Vertical Roller Mills Versus Ball Mills

cement ball mill Vs vertical roller mill

The grinding process in ball mills and vertical roller mills differ fundamentally. In a ball mill the comminution takes place by impact and attrition. The comminution in the vertical roller mill takes place by exposing a bed of material to a pressure sufficiently high to cause fracture of the individual particles in the bed, although the majority of the particles in the bed are considerably smaller than the thickness of the bed.

It is thus necessary that a stable and consistent grinding bed is formed between the rollers and the table of the vertical roller mill, able to sustain such a pressure without the material being squeezed away from the pressure zone. A stable grinding bed is usually easily obtained in raw material grinding in a vertical roller mill with a high efficiency separator. However, in cement grinding it becomes more difficult to form a stable grinding bed as:

cement is ground much finer than raw materials the feed to a cement mill is often completely dry and is significantly more difficult to grind than raw materials requirements to the particle size distribution of the finished product are much more strict when grinding cement than when grinding raw materials

vertical roller mill

ultrafine grinding mill for sale

ZENITH Company XZM Series Ultrafine Mill is widely used in making fine powder or micro powder, a new kind of machine for producing ultrafine powder. It is mainly used for grinding the material with middle and low hardness, moisture below 6%, and the material should be non-explosive and non-flammable, such as calcite, chalk, limestone, dolomite, kaolin, bentonite, steatite, mica, magnetite, iolite, pyrophillite, vermiculite, meerschaum, attapulgite, diatomite, barite, gypsum, alunite, graphite, fluorite, phosphate ore, potassium ore pumice,etc. The size of the finished production can be adjusted between 325-2500 mesh. due to its superior performance, it is widely used as gravel grinding mill for sale all over the world.

outstanding features

XZM ultrafine grinding mill is an excellent grinding machine for fine size reduction applications. With many unique features and advantages, it produces high quality fine powder products. 1. High capacity and low consumption.2. Advanced grinding cavity design.3. High quality grinding media.4. Advanced intelligent speed control device.5. Large range of fineness adjusting.

cement grinding mill manufacturer

ZENITH company designed and manufactured cement making machines including vertical shaft kiln and clinker grinding unit are functionally and mechanically superior then the ordinary cement plants. Our mini cement plants are easy to install and maintain. ZENITH¡¯s Cement clinker processing equipment have been exported to America, Italy, Turkey, Australia, Singapore, Indonesia, Vietnam, Iran, India, Chile, Venezuela, Libya, Angola, Kenya, South Africa, Pakistan, Yemen, Egypt, Nigeria, Tajikistan, Saudi Arabia, Zimbabwe, Dubai, Vietnam, Philippines, Brazil and so on.

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