2012-06-08 10:01:18ninaozchamp

The working principle of pulverizer

Although there were differenttypes of pulverizer, but according to the application of force, thematerial has broken extrusion, bending, impact, shearing and grindingand other methods. In the pulverizer, the application of force isvery complex, often several at the same time the existence ofapplication of force, of course, there be only one or two of the mainapplication of force in a pulverizer.

As the material is irregularlyshaped particles, and the physical properties of different materials,the use of the different ways to pulverize, pulverize the use ofmechanical materials imposed by external forces following severaldifferent ways:

1 crushed materials will beplaced between two pieces of face, put pressure, stress as a resultof the material to reach its compressive strength and broken, thismethod generally used for large pieces of broken material.

2 pieces of material will beplaced in a plane with a sharp edge and the work between the planewhen with a sharp edge on the work of the flat extrusion materials,the materials will be pressure along the line of cleavage in thedirection broken. They are due to a split-split-plane tensile stresson the materials meet or exceed the limits of the tensile strength.Tensile strength of the material strength than the limit limit muchsmaller.

3 folded pieces of material bybending stress and broken. Materials to be broken under concentratedload of two simple beam point or point beam. When the materials reachthe bending stress of the material bending strength, was broken andbroken.

4 materials broken by theshock impact and the role of the broken, broken as a result of itsrole in the force is transient, its broken efficient than the broken,low energy consumption, the impact shattered the followingsituations:

(1) the movement of objectsmaterials on the impact of
(2) high-speed movement of materialsto face the impact of fixed
(3) high-speed movement of materialimpact on each other
(4) high-speed movement of work left to thebody of material impact

5 grind (ground)

And the movement of materialsbetween the work surface by a certain degree of pressure and shearstress, shear stress the shear strength of the material reached thelimit, then crushed materials, or materials when the friction betweenthe shearing, grinding role By broken materials.

The main types ofpulverizers

1 According with constructionand the different working principles, pulverizers commonly have thefollowing types :

(1) E-pulverizer is relying onthe activities of the jaw plate for a cyclical movement back andforth, the two entered the E-board material between the crush.
(2)hammer pulverizer materials by high-speed rotary hammer of the impactof their own materials and high-speed fixed to the lining materialbroken by the impact.
(3) cone pulverizer (cycles Breakers) byeccentric rotation within the cone, so that in the cone between thetwo materials by squeezing and bending and breaking
(4) Impactpulverizer materials by high-speed movement of the plate hammer blow,so that the material back to the board high-speed collision, and thematerials between the crushing impact.
(5) roll pulverizermaterials fell on two parallel each other and the opposite cycle ofinter-roller (opposite rotation), the roller surface materials in therole of friction, Che Jin was transferred between the roller bysqueezing the roller and broken .


The working principle of pulverizer