<p>Ball mill is mainly used to grind materials in mineral, cement, refractory, chemical industry, etc. Ball mill has dry and wet ways. When wet ball mill works, certain water and other liquid will be added with materials to increase materials liquidity, so the capacity is increased. When dry ball mill works, the reduced material liquidity will influence the productivity. So absorbing wind device is needed on the outlet of ball mill, and then negative pressure is formed inside the ball mill to increase flow ability of material, at last the capacity is increased.The development of ball mill is closely linked with the technical progress, modern science and technology and the overall industrial level, especially with Mechanical engineering science and the development of mining subjects.Latest ball mill technology can improve the products quality obviously and reduce the production cost greatly.</p><p>Ball mill is the key equipment for grinding materials after being broken. Ball mill is widely used in cement, silicate products, new building materials, refractory, fertilizer, ferrous and non-ferrous metal dressing, as well as glass-ceramics and other industries, for dry or wet grinding of various ores and other abrasive materials. Ball mill is suitable for grinding ores and other materials into powder, so it is widely used in mineral processing, building materials and chemical industry, with dry and wet two grinding types. According to the different discharging ways, ball mill is divided into lattice type and overflow type.</p><p>To ameliorate the people’s livelihood and promote economic growth, great many countries care the infrastructure construction very much. For example, the Chinese government pays great attention to the high speed railway construction, The government has adopted a series of measures to finish the jinghu high speed railway construction. The <a href="http://www.ft-productionline.com/proitem/p11.html">ball mill</a> development wins its bright prospects for the infrastructure construction. Construction need cement, and cement ball mill is one of the necessary equipments in cement production line. Also, in road construction and mining industries (such as the iron ore processing plant), ball mill also play an important role.</p><p>scrap copper cable recycling machine: http://www.fut-china.com/tm.html</p>