Exp # 1: CRUSHING Machine Study of Laboratory jaw

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Presentation transcript:

Exp # 1: CRUSHING Machine Study of Laboratory jaw Crusher and to perform a crushing test on the given sample.

CONTENTS Introduction to Crushing Introduction to Jaw Crusher Types of Jaw Crusher Construction of Jaw crusher Free Crushing & Choked Crushing Characteristics of Jaw Crusher Drawbacks of Jaw Crusher Application of Jaw Crusher

Introduction to Crushing What is crushing? Main objectives of crushing Types of Crushing Primary Crushing Secondary Crushing Tertiary Crushing

Objectives of Crushing Handling Preparing feed size for various machines Liberation Size Requirements of finished product

Introduction to Jaw Crusher What is a Jaw Crusher?

Types of Jaw Crusher Main types Blake type Dodge type Universal type Double toggle Blake type Single toggle Blake type Dodge type Universal type

Double toggle Blake type

Single toggle Blake type

Comparison B/t Double Toggle & Single Toggle Parameters Type of motion Capacity Wear Maintenance cost Capital cost Nature of material

Jaw Crusher Construction

Free crushing & choked crushing

Characteristics of Jaw Crusher Speed Throw Set Safety Spring Capacity Energy requirements Reduction ration

Drawbacks of Jaw Crusher 180 degree machine Not suitable for stick Material Lumps passes without crushing

Applications of Jaw Crusher

Crushing Exp # 2. Machine Study of Laboratory Roll Crusher & to perform a crushing test on it.

Introduction to Roll Crusher

Types of Roll Crushers Single Roll type Double Roll type Three Roll Type Four Roll Type

Parameters affecting performance Angle of nip Size of roll Speed of roll Surface of rolls

Capacity & Reduction Ratio

Applications & drawbacks Friable, sticky and soft material

Questions