Are you looking for crushing equipment for you to process gravel, rocks and any mineral? Here is a guide to everything you need to know about rock crushers before you take the big step of purchasing one.
Rock crushing stages
Through a project, manufacturers can use different crushers for the same project. Not all projects require stages. For the projects that have to undergo the entire process, here are the three steps that they have to go through before completion.
- Primary stage- the first stage involves crushing and extracting from a mining site. The main aim of the primary step is to reduce the material into smaller sizes and shapes, making it ready for the second step. Some of the crushers used in the primary stage are the compression style jaw, cone, impact crushers and gravatory crushers, which fit with the preliminary stage’s crushers equipment.
- Secondary stage- in this stage, the reduction ratios are a significant consideration. It is essential to know how fine you need your output to be depending on the size of the tertiary feed required. The cone crushers are also used in the second stage because they are versatile in the feed, speed and throw.
- The tertiary stage- is the final reduction stage making the material into the required market size. There can be an overlap in the steps depending on the type of rock crusher that you are using. Cone crushers are used in this stage, as well as the vertical shaft impactors or the high pressure grinding rock crusher.
Types of rock crushers
Jaw crushers are used for compression crushing which happens in the first stage since they have a blunt instrument. They are therefore used to break rocks or more significant and more complex materials into more manageable pieces and hence are used in the primary stage. They provide fine materials and dust, although to get the finished product, there is a need to take it through another step.
Cone crushers work by compression, which means they squeeze the material until broken down into small materials as required. The cone crushers are built with a mantle that rotates in a concave bowl lined with manganese. The cone crusher works on material that might be very hard or medium hard and wet or dry. The cone crushers are ideal for all stages of crushing.
The impact crushers are also known as the VSIs, and HSIs are used on less abrasive rocks like limestone. The impact crushers break the material by impacting forces of wear parts known as blow bars or toggles. Most operations use the impact crusher after they have used a different type of crusher that has produced more elongated material. The product from the previous crusher allows the impact crusher to create more acceptable materials in a more cubical nature.
Depending on the length and mobility of your project, you will be able to decide what type of crusher is ideal for your project. Most people prefer stationary plants since they are low maintenance and efficient, but the portable ones are ideal for places for larger projects.