subject: The Materials Nature Influences Cone Crusher [print this page] The materials nature influences cone crusher
Cone crusher usually is used in mining ore beneficiation, medium crushing and tertairy crushing. The moving cone liner, fixed cone liner and ore minerials form a three-dimensional abrasivation, so that the liner surface is in a state of complex stress and force. The broken stone gives liner surface a great compressive stress. At the same time, high speed moving cone liner generates huge shear stress. These two kinds of stresses do chisel cut, cutting, and impact extrusion pit on liner board, which is the main force method. Therefore, as for liner material, we requires not only high surface hardness against chisel edge, but also high strength and toughness. As the different working site condition, especially the ore hardness value is different, 3 kinds of stresses systems are also different from each other. At present, we usually choose high-manganese steel as cone crusher liner board.
The nature of the materials, including the hardness, the composition, the viscosity and the moisture content of the raw materials, the particle size and fineness the products require, and so on. The higher the hardness of the raw materials, the more difficult of the crushing work. The crushing ability lowers and the crushing work progress slows down. The longer the raw materials stay inside the machine, the higher the wear and tear of equipment. Therefore, relatively speaking, the crushing efficiency of materials with low hardness is higher than the materials with great hardness, with the yield of the former is also higher. In the crushing production line, if the production materials are uncertain, the workers should try to choose those raw materials with middle hardness, which can improve the crushing progress and product yield in an easier way.
While the crusher employs a laying-type installation, the balancing mass is located at the bottom of the dynamic cone. The prominent features are: main shaft of the dynamic cone is able to bear greater crushing power, the cone body is easy to extract, and it is convenient to change the quick-wear partthe dynamic cone liner, which improves the working environment of the lubrication system as well as promotes the reliability. Compared with these traditional ones, theres a fundamental change from the MVP cone crusher that it adopts crossing axis rotation, and it has surmounted the problem that the stroke of the feed port of traditional cone crushers is short, ensuring both a sufficient compression stroke for the materials after entering the crushing chamber and uniform distribution of the materials. Therefore, enough crushing force as well as better crushing effect can be obtained.
