The Introduction of Commonly Used Crushing Machinery

As we al know, the crusher is widely used in mining, metallurgy, building materials, road, railway, water conservancy and chemical industry and many other sectors, which have large crushing ratio, uniform particle size, simple structure, reliable operation, easy maintenance, operating costs and economic characteristics.

In accordance with the manner of the crushing force,the crusher can be roughly divided into two categories:
(1) crusher;
(2) the attritor.

The crusher usually handle larger pieces of material, product size is
coarser, usually greater than 8 mm. Its structure is characterized by a certain
gap between the crushing member, and not in contact with each other. the crusher
can also be divided into primary crusher, crusher and fine crusher.
In
general, processed materials' size get by the grinding machine are fine, the
product granularity is fine-grained, up to 0.074 mm, and even much smaller. Its
structure is characterized by broken parts (or medium) come into contact with
each other, the media adopted are steel balls, steel bars, gravel or nuggets.
However, some machinery is at the same time both crushing and grinding, such as
the mill. φ5.5 × 1.8 meters from the mill processing ore particle size maximum
are 350 to 400 mm, the product fineness can reach about 40% -200
mesh.
According to the broken way, the structural characteristics of the
mechanical / action principle , the broken machinery (crushing machinery) can be
broadly divided into six categories:
◆ jaw crusher.

Crushing is operated by the movable jaw plate to periodically press the
fixed jaw plate, and crush the ore blocks clamped between the gap.
◆ cone crusher.
The ore
blocks exist between the inner and outer cone, outer cone is fixed ,the inner
cone do the eccentric swing, and crush the ore blocks clamped between the
gap.
◆ roll crusher.
The ore blocks are put in two counter-rotating
circular roller ,and mainly processed by the continuous crushing effect, but
also with the grinding stripping, the toothed roller surface the chipping
role.
◆ impact crusher.
The
ore blocks are crushed by the impact of the role of the fast-moving parts
turning. The machine which belong to this category can also be divided into:
cage crusher; Crusher.
◆ grinding machine.
Ores are crushed by the
impact and abrasive grinding media (steel balls, steel bars, gravel or nuggets)
in a rotating cylinder.
◆ other types of crushing and grinding machines
(grinding machinery):
A. roller mill;
B. Mill of tray;
C.
centrifugation grinding machine;
D. vibration grinding machine.

dryer machine : http://www.ore-mills.com/dryer.html