Stone crusher, also known as a crusher or stone crushing machine, is a crushing machine that can break the mined raw ore into small particles through various methods such as extrusion, splitting, and bending. It is widely used in many industries such as mining, smelting, building materials, highways, railways, water conservancy, and chemical industry, and is mainly used for primary crushing of various ores and bulk materials.
1. The working principle of gravel crushers varies depending on the model, but it can be roughly summarized into the following types:
• Extrusion crushing: The working surface of the crushing machine exerts pressure on the materials sandwiched between them. When the compressive stress on the materials reaches the limit of its compressive strength, it is crushed.
• Splitting shear crushing: The edges of the crushing working surface are wedged into the material, causing internal tensile stress. When its value exceeds the tensile strength limit of the material, the material splits, and powder is locally produced at the contact point between the sharp edge and the material.
2. Specific to different types of stone crushers, their working principles are as follows:
• Jaw crusher: A crushing machine that uses the squeezing and bending effects of two jaw plates on materials to coarsely or mediumly crush materials of various hardnesses. The crushing mechanism consists of a fixed jaw plate and a movable jaw plate. When the two jaw plates come close to each other, the material will be crushed. When the two jaw plates move away, the material blocks smaller than the discharge opening will be discharged from the bottom.
• Cone crusher: uses the eccentric motion of the movable cone to crush the stone. At the same time, due to the tangential movement of the movable cone and the fixed cone, the stone is also subject to shearing and grinding. Therefore, its working mechanism is extrusion, shearing A combination of cutting and grinding methods.
• Gyratory crusher: It adopts the principle of laminated crushing between materials, and uses the gyrating motion of the crushing cone in the cone cavity inside the shell to squeeze, split, and bend the materials, and coarsely crush ores or rocks of various hardnesses.
In addition, there are hammer crushers, impact crushers, and other models, and their working principles also have their own characteristics. For example, the hammer crusher mainly relies on impact energy to crush materials; the impact crusher uses the impact between materials and the impact between the material and the impact plate to crush.
In short, the stone crusher is an important crushing machinery with various working principles. The appropriate model can be selected according to different materials and crushing needs.
Baichy Machinery is a factory supplier of mining machinery, mainly focusing on stone crushers, powder grinding mills, and mineral beneficiation plants. We can offer you a free design and completed solutions according to your project.
Baichy Heavy Industry has grown into a high-tech mining equipment comprehensive enterprise, integrating R&D, manufacturing, sales, and after-sales service, Passing ISO9001:2015 quality management system certifications. The main products are mobile jaw crushing plants, construction waste crushing plants, PE jaw crushers, VSI sand-making machines, Symons cone crushers, single-cylinder hydraulic cone crushers, PCX high-fine crushers, grinding mills, ball mills, and full sets of beneficiation equipment with an excellent level.
