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What is the principle of crushing?

What is the principle of crushing?

Crushing is a mechanical process where larger solid particles of brittle material are subjected to sufficiently high forces and energy with the consequence that the material of the particles fails and fragments are generated. This process happens predominantly in crushers.

Which crusher works on the principle of impact?

Gyratory crushers work on the same principle as cone crushers (Figure 4.4(c)). These have a gyratory motion driven by an eccentric wheel. These machines will not accept materials with a large particle size and therefore only jaw or impact crushers should be considered as primary crushers.

How does a crusher machine work?

A jaw crusher consists essentially of two crushing plates, inclined to each other forming a horizontal opening by their lower borders. Material is crushed between a fixed and a movable plate by reciprocating pressure until the crushed product becomes small enough to pass through the gap between the crushing plates.

What is crusher and its crushing method?

Crushing devices hold material between two parallel or tangent solid surfaces, and apply sufficient force to bring the surfaces together to generate enough energy within the material being crushed so that its molecules separate from (fracturing), or change alignment in relation to (deformation), each other.

What is the difference between a jaw crusher and a cone crusher?

Jaw crushers can work on a range of stone from the softer ones like limestone to harder basalt or granite. A cone crusher is similar to a gyratory crusher because it operates using a mantle that rotates within a bowl, but it has less steepness in the crushing chamber.

What is a cone crusher used for?

Cone crushers are used for intermediate and fine crushing after primary crushing. The key factor for the performance of a cone type secondary crusher is the profile of the crushing chamber or cavity.

What is the working principle of a jaw crusher?

A sectional view of the single-toggle type of jaw crusher is shown below. In one respect, the working principle and application of this machine is similar to the Dodge crushers; the movable jaw has its maximum movement at the top of the crushing chamber, and minimum movement at the discharge point.

How does a cone crusher reduce throughput?

The crushed material is discharged at the bottom of the machine after they pass through the cavity. A Cone Crusher will deliver a 4:1 to 6:1 reduction ratio. As we set the closed side setting tighter to create a finer output, we also reduce the volume or throughput capacity of the machine.

What is the discharge opening of a crusher?

The jaw crusher discharge opening is the distance from the valley between corrugations on one jaw to the top of the mating corrugation on the other jaw. The crusher discharge opening governs the size of finished material produced by the crusher. Measuring Discharge Opening:

What does wi stand for in mineral crushing?

• Impactors – WI is an indication of hardness • Cone Crusher – rate the material to determine the duty of the crusher http://mineralprocessingconsultant.com/ 21 22.