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Impact crusher - the basic structure and working principle of advantages and disadvantages?

 
Ore from the mouth to feed into, and along the sieve plate downward slide, Screen on the ore in the process of fallen shall high-speed rotation of the rotor by Carbide hammer smashed, and a high speed section along the tangent direction of flying a counterattack plate so that ore continue to be broken, the board will counterattack ore strike back with the rotor and releases behind the other ores impact each other, so in the first cavity in the ore crusher by repeated shocks were smashed. Some broken ore in the first cavity broken to a certain size, the board and the counter gap between the rotor and broken cavity to the second row, continue to be repeated strikes, until after the smaller particle size from the bottom row Crusher ore from the mouth.

From the above we can see the impact crusher impact of the work is with the principle of broken ore can be expressed in the following two formulas:

Ore received kinetic energy: E = 1/2MV2

The impact of ore:

F = M (V2 - V1) / T

Where M - the quality of materials being broken, kilograms;

V - the circumference of the rotor speed, m / s;

V2 - materials after block was against the speed, m / s;

V1 - materials before the block was against the speed, m / s;

T - time, seconds.

- Visibility from the previous, counterattack and inversely proportional to time, and block the mine suffered acceleration proportional to the kinetic energy is block materials and the square of the rotor velocity and the quality of materials is proportional to the product. 

impact crusher of the main advantages:

1) Structural simple, small size, light weight, capacity, therefore the low cost of production.

2) along the joint surface ore crusher, so less power consumption, high efficiency.

3) broken than large, up to 40, can simplify the process broken, broken into three sections enable two or broken section, concentrator equipment to reduce costs.

4) selective broken, and broken products more uniform particle size, shape mostly cube.

impact crusher biggest shortcoming is that hammerhead and counterattack plate wear faster."
 
4/24/2008 12:55:50 AM

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