There are many types of crushers, and the main force of crushing materials can be roughly divided into extrusion type,impact type, and shear type crushers.
There are many types of crushers, and the main force of crushing materials can be roughly divided into extrusion type,impact type, and shear type crushers.
How to choose a coal crushing machine?Extrusion crushers include jaw crushers, gyratory crushers, cone crushers,roller crushers with smooth or grooved tooth surfaces. The working principle isthat the material is broken by the action of crushing, splitting and bendingbetween the fixed tooth plate and the movable tooth plate of the crushingmachine. This kind of crusher can crush the materials in the crushing cavityand easily form excessive crushing, and it is easy to form large-size products.It cannot guarantee the product granularity and consumes large amounts ofpower. It is mainly used for the crushing of hard materials and is widely usedin the fields of metal mines and gravel.
Impact breaker mainly include impact crushers and ring hammer crushers. The crusher is a high-speed hammer that hitsthe material. After each blow, the material accelerates, flies toward theimpact plate, and impacts and back shocks are repeatedly subjected to the sameeffect. At the same time, the impacted objects are impacted by each other inthe crushing cavity. There is also a portion that is sheared by the impactblade and the impact plate. This kind of crushing method has poorcontrollability and will eventually lead to the production of a large amount ofpulverized coal. It is even worse when the coal with low hardness and highbrittleness is broken in this way, and there is a restriction on the grain sizeof the feed and it is not suitable for coal. The coarse and medium breakingoperations are more suitable for crushing operations.
The crusher is a key part of the coalpreparation process and an important means to improve the technical and economicindicators of the coal preparation plant. Various types of crushing equipmenthave different application scopes and uses due to their different crushingmechanisms. Different crushing equipment should be selected according todifferent material properties and operational requirements. Therefore, it canbe considered that different types of crushers have different ranges ofapplication due to their different crushing principles. Henan Zhengzhou MiningMachinery Co., Ltd. has undergone 50 years of development and specializes inthe production of grinding machines such as ball mills and rotary kilns.