Stone crusher can be divided into medical stone crusher and mining stone crusher according to the broad categories. Mining stone crusher principle adapted to the sea of mining hard rock crushing, its typical granite discharge size ≤ 40mm accounted for 90% of the machine can deal with the side length of 100 ~ 500 mm of the following materials, its compressive strength of up to 350 MPa, with a large crushing ratio, the crushed material is cubic particles and other advantages. Mining stone crushing machinery refers to the crushing machinery that the content of particle size larger than three millimeters in the discharged material accounts for more than 50% of the total discharged material.
Based on the way the crushing force acts can be crusher can be roughly divided into two categories: crusher, mill. Crushers generally deal with larger pieces of material, the product size is coarse, usually greater than 8 millimeters. Its construction is characterized by a certain gap between the crushing parts, not in contact with each other. Crusher can be further divided into coarse crusher, medium crusher and fine crusher. Generally speaking, the materials handled by the mill are finer, and the product size is fine grain, up to 0.074 millimeters, or even finer. Its structure is characterized by crushing parts (or media) in contact with each other, the media used are steel balls, steel rods, gravel or ore, etc.. However, some machinery is both crushing and grinding at the same time, such as the autogenous mill. #5.5×1.8 meters autogenous mill processing ore size upper limit up to 350 ~ 400 mm. According to the crushing method, the construction characteristics of machinery (action principle) to be divided, roughly divided into six categories. Jaw crusher (slot mouth). The crushing action relies on the movable jaw plate to periodically press against the fixed jaw plate to crush the ore pieces sandwiched in it. Cone crusher. The ore pieces are between the inner and outer cones, the outer cone is fixed, and the inner cone swings eccentrically, which crushes or breaks the ore pieces clamped in it. Roll Crusher. Ore block in the two opposing rotating roll nip, mainly by continuous crushing effect, but also with the abrasive stripping effect, toothed roll surface and splitting effect. Impact crusher. Ore lumps are crushed by the impact of the rapidly rotating moving parts. Belonging to this category can be divided into: hammer crusher; cage crusher; impact crusher. Mills. The ore is crushed by the impact and grinding action of the grinding media (steel balls, steel rods, gravel or ore pieces) in the rotating cylinder. Roller Mill: the material is crushed by means of rotating rollers. Disk mill: using the vertical axis or horizontal axis of the disk rotation as a crushing component. Centrifugal mill. The use of high-speed rotating parts and media production centrifugal force to complete the crushing effect. Vibrating mill. Utilizing the rotating shaft to produce high-frequency vibration, so that the media and the materials touch each other to complete the crushing effect. Various types of crushers have different specifications, different scope of use. Coarse crushing with jaw crusher or gyratory cone crusher; in the standard cone crusher; fine crushing with a short head type cone crusher.