Crusher Operating Variables
Now is the time we start-talking of operating variables of crushers. I will talk about the crushers first, then the screens, and finally both together as a circuit. The variables for the crushers are: SIZE OF THE FEED, SPEED OF CRUSHING, THE HARDNESS OF THE ORE, MECHANICAL CONDITION, SIZE OF THE FINISHED PRODUCT, All of […]
Checking Crusher Gap -Measuring Crusher Chamber Spacing
To check the gap on a crusher a procedure called LEADING is done. A lump of lead, whose dimensions are greater than the gap of the crusher, is lowered through the crusher while the crusher is running. The lead is pulled back through the crusher very slowly to be sure that it is flattened as […]
Vibrating Screen Working Principle
When the smaller rock has to be classified a vibrating screen will be used. The simplest Vibrating Screen Working Principle can be explained using the single deck screen and put it onto an inclined frame. The frame is mounted on springs. The vibration is generated from an unbalanced flywheel. A very erratic motion is developed when […]
Static Grizzly Screen as a Rock Separator
The screening a Static Grizzly separator does is sort and classify the rock according to size. The first stage is SCALPING. This is the practice of removing any material that may slow production. It may be rock that is too big for the equipment to effectively handle, or fine material that is taking up valuable […]
Gyratory Crusher & Cone Crusher Mantle Differences
Any of you that are at all familiar with the Gyratory crushers and Cone Crushers that the former are used as Primary crushers will probably note many similarities between the types. Each use a cone shaped crushing surface, and the same principal in the eccentric is employed to develop the crushing action required. The difference between […]
Cone Crusher Oil System, Dust Seal & Thrust Bearing
The second group of crusher components consists of the Cone Crusher’s oil system, the Cone Crusher’s dust seal and the thrust-bearing. The oil system, like the one used with the primary crusher, is one that requires a large EXTERNAL RESERVOIR. It has the same features that was described earlier in the chapter that dealt with […]
Tramp Steel & Cone Crusher Hydroset
As you can imagine the forces that are put onto the main frame and body of a cone crusher are fairly great. So what happens if something that can’t be crushed, like a steel bolt, gets into the crusher? Instead of damaging itself the crusher has a built in safety device. The tramp steel release. […]
Cone Crusher Distributor Plate
As the ore enters the crusher it lands on top of the cone crusher’s distributor plate and is evenly spread over the entire crushing surface by that gyrating action. We will come back to the crushing action in a few moments but first let’s finish discussing the components of the crusher. The remaining five parts […]
Secondary & Tertiary Crushing Circuits
In this sector on Secondary and Tertiary crushing, we will continue the practice of talking about different equipment, the work it does, and the effects of what I call operating variables. These variables are anything that affect the performance of the equipment. Lets begin with an over view of these two crushing stages. Then describe various […]
Jaw Crusher Animation
Single Toggle Blake Double Toggle Blake Single Toggle Blake Single Toggle Dodge Jaw Crusher