2012年(464)
分类: Delphi
2012-05-26 14:24:41
The machine is new and medium and fine grinding equipment that is researched
and developed in the last century and it is also widely used for replacing
hammer crusher and impact crusher in the world. Mining is a
mineral processing machine for milling the materials into powders after they are
crushed. It is widely applied to the production of cements, silicate products,
building materials, fireproof materials, fertilizers, glass, ceramics as well as
nonferrous and ferrous metal processing industries. It could carry out dry and
wet millings on different materials.
The stone directly falls into the
high-speed rotary wheel from the above of the machine, under the driving force
of the high-speed centrifugal force; it is impacted with high-speed and crushed
with high-intensity with the other part target stone that is flying around the
turntable in an umbrella form. After the stone is crushed with each other, it
will be impacted, crushed and grinded between the turntables and cabinet for
several times of the eddy current, in the end, directly discharged from the
bottom of the machine. The ball mill is generally used to grind material 1/4
inch and finer, down to the particle size of 20 to 75 microns. To achieve a
reasonable efficiency with ball mills, they must be operated in a closed system,
with oversize material continuously being recirculated back into the mill to be
reduced. Just like this, it will form a close-circuit ring for several time of
cycling and the required granularity of the finished products is determined by
screening equipment.
Various classifiers, such as screens, spiral s,
cyclones and air classifiers are used for classifying the discharge from ball
mills. Ball mill is an efficient tool for grinding many materials into fine
powder.
According to the different methods of discharging material, cement
ball mill can be divided into central discharging type and circum discharging
type.
The ball mill is used to grind many kinds of mine and other materials,
or to select the mine. The Ball Mill is widely used in powder-making production
line including cement, silicate, new-type building material, refractory
material, fertilizer, ore dressing of ferrous metal and non-ferrous metal, glass
ceramics, etc. It has such advantages as unique and special structure, stable
and reliable operation, low energy consumption, high production capacity and
crushing ratio. In the working process, the stone can form a protection layer so
that the machine itself has little wear and tear and has a long service life.
Some easy-wearing parts adopt hard abrasion-resistant material and the size is
small, the weight is light and convenient to change.