Table of Contents
What is crusher used for?
Crushers are machines used to reduce the size of rocks, stones and ore. They are often utilized in aggregates production, construction material recycling and in mining operations.
What is crusher and its type?
Crushers are classified into three types based upon the stage of crushing they accomplish. These are (i) primary crusher, (ii) secondary crusher, and (iii) tertiary crusher. The primary crusher receives material directly from run of mine (ROM) after blasting and produces the first reduction in size.
What is choke feeding a crusher?
A crusher is choke fed when the chamber is full and there is material above to keep it full. This contrasts with regulated feed, where the flow of material to the crusher is throttled in some manner so that the crusher is never completely filled.
How do you size a jaw crusher?
Jaw Crushers are sized by the top opening of the crushing chamber. For example, a 32 x 54 Jaw Crusher measures 32″ from jaw die to jaw die at the top opening or gape opening and 54” across the width of the two jaw dies. The narrower bottom opening of the crushing chamber is used to size the discharge material.
What is a crusher slang?
(slang) A policeman. noun.
Can you choke feed a jaw crusher?
Feeding for efficiency Jaw crushers are routinely choke-fed, as this maximises production capacity and ensures particles are uniformly broken.
What is free crushing?
Definition of free crushing : a method of crushing ore in which the rate of feed is such that the crushed material passes freely through the crushing unit.
How do you calculate the power of a jaw crusher?
A jaw crusher has a wider range of settings—generally, a maximum of two to three times the smallest setting….
- Pp = 2800 (2.8 SG)
- e = 0.2 (halfway between dolomite and sandstone)
- A = 250/1000 x 500/1000.
- Wj = 0.5.
- Nj = 225.