Rock and mineral crushing a mechanical process, rock is broken object, the mechanical properties of the rock and mineral of impact crusher must be aware of.
Rock and the mechanical properties in accordance with the biasing force to the different ways and there are different performance, such as rock and minerals subject to pressure Rock and exhibit the ability to resist crushing by the shear force exhibited the ability to resist shear,exhibit the ability to resist bent by a bending force typically intensity to characterize the resistance of the rock and minerals, the same species Rock and resistance force capacity is different, in general, the compressive strength of the rock and mineral maximum, followed by shear strength, flexural strength smaller minimum tensile strength. If the compressive strength is 1, the other strength only a small fraction of mm Pronto Jiya can Romanov that sturdy rock in all aspects of performance tends to be consistent, hard broken rock, using a variety the method is immune to broken, they pass broken rock, using a variety of methods are easy to impact crusher, so sturdy coefficient (Platts coefficient) to indicate the relative robustness of the rock. The sturdy coefficient of a rock than another rock several times, it means that any method crushing former than the latter difficulty many times.
As rock and mineral crushing and grinding, regardless of its impact crusher mechanical design and process implementation must be based on the mineralization of the mechanical strength values ??Otherwise, the design of the crushing and mechanical strength is not enough, or broken can not be carried out smoothly.Platts hardness of the rock and mineral coefficient f reflect the comprehensive strength of the rock and mineral crushing force of strength can be determined by it, but the crushing force of the mode of action is an important factor affecting broken. And the mode of action of the crushing force is affected by the toughness of rock and minerals, including brittleness, flexibility, scalability, flexibility and elasticity. This must be determined rock and mineral elastic modulus and Poisson's ratio. The crushing force based on the mechanical properties of the rock and minerals in order to determine the appropriate way to make Impact Crusher crushing effect.
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