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Oprettet 17. January 2018 kl. 03:42
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Hammer Crusher Grate

The Ultrafine Mill hashigh productivity, small energy consumption, safety use, easy maintenance and wide range of applications. When design hammer crusher we need to pay particular attention to the design of wearing parts, including hammer, bearings, grate bar, impact plate; this paper mainly describes the design of grate and impact plate.

Grate is a set of steel bars of equal size to control the granularity of broken materials; When coarsely crush brittle materials, the gap of grate bars should be higher than 1.5 to 2 times of the maximum particle size; when fine crush brittle materials, it should be 3 to 6 times of particle size; grate gap should be along the movement direction of materials, that is, the gap should be gradually extended from insider gradually along the direction of hammerhead line speed so that the qualified products are successfully excluded without blocking. The spread pattern of grate bars should be vertical with the movement direction of hammer head. In addition, the gap between the two grates is usually 60mm.

The role of impact plate is to re-bounce broken materials to crushing plate for re-crushing; in order to obtain better crushing effect, the materials should be vertically collided to the surface of counter plate. The surface of counter plate includes mansard type and involute type. Mansard type plate has simple structure, but cannot guarantee that the most effective impacting; involute impact plate materials impact materials vertically with better effect. However, due to the involute impact board is difficult to manufacture, we usually adopt polyline impact plate.In short, we need to base on safety use and convenient maintenance so that design crusher with lower cost and superior performance.

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