Advance Construction TechnologyPatel Dhruvil (086440306518)Suthar Rajesh (086440306546)Patel Bhadresh (086440306515)

Civil 6th sem presenting a seminar on “Types of Crusher”

“A crusher is a machine designed to reduce large rocks into smaller rocks, gravel or rock dust.”

Crusher

Types of crusher are as given below:

o Jaw Crushero Gyratory Crushero Cone Crushero Impact Crushers Horizontal shaft impactor ( HSI) Vertical Shaft impactor (VSI)

Types of Crusher

Jaw Crusher The movement of jaw can be

quite small, since complete crushing is not performed in one stroke.

The inertia required to crush the material is provided by a weighted flywheel that moves a shaft creating an eccentric motion that causes the closing of the gap.

Manganese steel is used for both fixed and movable jaw faces.

Heavy flywheels allow crushing peaks on tough materials.

Double Toggle jaw crushers may feature hydraulic toggle adjusting mechanisms.

A gyratory crusher is one of the main types of primary crushers in a mine or ore processing plant.

Gyratory crushers can be used for primary or secondary crushing.

Gyratory Crusher

A cone crusher is similar in operation to a gyratory crusher with less steepness in the crushing chamber.

A cone crusher is suitable for crushing a variety of mid-hard and above mid-hard ores and rocks.

It has the advantage of reliable construction, high productivity, easy adjustment and lower operational costs

Cone Crusher

This type of crusher is usually used with soft and non-abrasive material such as coal, seeds, limestone, gypsum or soft metallic ores.

There are two types of impact crusher

I. Horizontal impact crusher.

II. Vertical impact crusher.

Impact Crusher

The use of HSI crushers is limited so soft materials and non abrasive materials, such as limestone, phosphate, gypsum, weathered shales.

Horizontal shaft impactor

VSI crushers use a different approach involving a high speed rotor with wear resistant tips and a crushing chamber designed to 'throw' the rock against.

VSI Crushing is generally of a consistent cubicle shape such as that required by modern SUPERPAVE highway asphalt applications.

Vertical shaft impactor

VSI crushers generally utilize a high speed spinning rotor at the center of the crushing chamber and an outer impact surface of either abrasive resistant metal anvils or crushed rock.

Vertical shaft impactor

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