Question

A jaw crusher, with a closed setting of 3 in., produces 200 tph of crushed stone. Determine the number f 

Answer 1

Complete questions:A jaw crusher, with a closed setting of 3 in., produces 200 tph of crushed stone. Determine the number of tons per hour produced in each of the following ranges.

$In\space excess\space 2\frac{1}{2}in\\ between\space 2\frac{1}{2}in\space and \space 1\frac{1}{2}in\\ Between\space 1\frac{1}{2}in\space \frac{1}{4}in\\ Less\space than\space \frac{1}{4}in$

The total output 150 tph of crushed stone.

Solution

We obtain percentage in size range and amount output in size range.

We use crusher setting of ₄ to obtain percentage for each size.

Formula

Amount produced in size range=% in size range× total output of crusher.

$In\space excess\space 2\frac{1}{2}in$  in the % size range

$100-56=44$

Amount produced $0.44×150=66$

$In\space between \space 2\frac{1}{2}in \space and \space 1\frac{1}{2}in$ ​ in the % size range

$56-36=20$

Amount produced $0.2×150=30$

$In\space between \space 2\frac{1}{2}in \space and \space 1\frac{1}{2}in$ ​ in the % size range

$36-11=25$

Amount produced $0.25×150=37.5$

$less\space than\space 2\frac{1}{2}in$ ​ in the % size rang

$11-0=11$

Amount produced $0.11×150=16.5$