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Zhengzhou Xinhai Machinery Manufacruring CO., LTD.
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ball mills,grinding machine

Zhengzhou Xinhai Machinery Manufacruring CO., LTD.

ball mills,grinding machine

Packaging Details : contact

Delivery : 20 days after payment

Payment Terms : T/T,L/C ETC

Place of Origin : China

Samples : Not Avaliable

Minimum Order : 1

Category : Plastic Crushing Machinery

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A ball mill, a type of grinder, is a cylindrical device used in
grinding (or mixing) materials like ores, chemicals, ceramic raw
materials and paints. Ball mills rotate around a horizontal axis,
partially filled with the material to be ground plus the grinding
medium. Different materials are used as media, including ceramic
balls, flint pebbles and stainless steel balls. An internal
cascading effect reduces the material to a fine powder. Industrial
ball mills can operate continuously, fed at one end and discharged
at the other end. Large to medium-sized ball mills are mechanically
rotated on their axis, but small ones normally consist of a
cylindrical capped container that sits on two drive shafts (pulleys
and belts are used to transmit rotary motion). A rock tumbler
functions on the same principle. Ball mills are also used in
pyrotechnics and the manufacture of black powder, but cannot be
used in the preparation of some pyrotechnic mixtures such as flash
powder because of their sensitivity to impact. High-quality ball
mills are potentially expensive and can grind mixture particles to
as small as 0.0001 mm, enormously increasing surface area and
reaction rates. The grinding works on principle of critical speed.
The critical speed can be understood as that speed after which the
steel balls (which are responsible for the grinding of particles)
start rotating along the direction of the cylindrical device; thus
causing no further grinding. 

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