2012年(464)
分类: Delphi
2012-05-06 14:31:56
There are many classification methods of crusher. For example, crushers can
be categorized by structure and model, or by crushing way, or by operation
speed, or by force type, or by fineness degree.
The milling method is based
on the physical properties of the material, the material block size and the
required degree of refinement to select. For hard materials, by extrusion,
bending and splitting; should be used for brittle materials, the impact and
splitting; material block is large, splitting and bending; materials block small
or discharge particle size is very small should be used to shock and grinding.
If you choose to grinding method, it will crush difficulties or excessive crush
phenomenon, both of which increase the energy in the process of crushing
consumption.
When required high crushing ratio, the crushing operation should
be carried out in crushing system. And the system is comprised by several
crushers. Passed the crusher unit system, the particle size of materials is
smaller and smaller, and finally reach the required particle size. In this
crushing system at each stage should be selected appropriate milling machinery
and crushed than to maintain the coordination between the various stages of
production capacity. Meanwhile, in order to reduce excessive smash smash
performance and reduce energy consumption, and also for screening or
classification after each crushing operations. Crushed crushed before and after
the particle size ratio is the size of the degree of change. Single smash
machinery is, it is equal to the feed particle size and the ratio of the maximum
particle size of the discharge; for crushing machinery composed of multiple
crushing system, which is equal to the initial feed particle size and the final
row the ratio of the particle size, or equal to a single smash mechanical
crushing than the connected product. When using crusher broken material,
commonly referred to as the crushing ratio.
A large number of industrial and
agricultural production, crush work energy consumption is large. But in the
crush operations, most of the energy input grinding machinery are converted into
heat and absorbed by the crushing machinery, circulating air and smash materials
directly used for material grinding, but only a small amount: in the broken
machinery, generally no more than 10%; in the grinding machinery, often less
than 1%.Therefore, in order to reduce energy consumption, you must select the
appropriate grinding machinery, using the correct method of operation, the
provisions of the crushing ratio and per unit time of production. General