Just how much the rated capacity of the primary crusher (at the required discharge setting) should exceed the average capacity of the plant depends upon how uniformly the crusher will be fed; or to put it more definitely, what percentage of the total operating period the crusher
The mechanical feeder is of course an excellent device for feeding any type of primary crusher. Some type of feeder is used for such service in almost every gravel plant, at some point in the system at the shovel, under the surge pile, or immediately ahead of the crusher* depending upon the methods utilized ‘in excavating and transporting the; pit-run gravel to the crushing plant.
The gyratory crusher has capacities starting from 1200 to above 5000 t/h. To have a feed opening corresponding to that of a jaw crusher, the primary gyratory crusher must be much taller and heavier. Therefore, primary gyratories require quite a massive foundation. The cone crusher is a modified gyratory crusher.
A variety of sizes and types make our feeders suitable for the constant feeding of crushers and screens after the primary crushing stage. Both base mounted and suspended models with large drive units and proper feed chutes are designed to make high feed rates even of coarse materials possible.
01-08-2019· Jaw crusher is usually used for primary crushing, and cone crusher is used for secondary crushing. The material of crusher plays an important role in its working efficiency and service life. The feeding must be equable, and the rocks' size must meet the requirements of crushers' feeding size.
In short, the jaw stone crushers are mainly used for primary crusher, the crushing stone is relatively large. The types of crusher machine's chamber are deep and no dead zone. It improves that the feeding capacity and output. The crushing ratio is large and the product particle size is even.
Therefore, it should be possible to adjust the opening feed size of the primary crusher, implying that the secondary crusher should have a relatively large capacity. This will allow maximisation of coarse RA production (e.g., the feed size of the primary crusher should be set to reduce material to the largest size that will fit the secondary crusher).