Sand reasons Kun type of gear damage analysis we know Kun-type sand making machine at work in the harsh environment, leading to equipment prone to some problems, which led to our need for routine maintenance of the equipment, I give below Talk about the cause of damage to equipment gear crusher manufacturers, to facilitate get used in future work. 1 equipment gear at work for some time will produce small pits, this problem is mainly produced at the time of gear engagement. Cycling gear surface contact force is generated due to fatigue in the surface of the gear so that leaves a fatigue crack, and crack propagation caused by metal particles flake form pits. 2 at high speed during the meshing zone due to the pressure is too large, because of the high temperature lubricant film rupture, resulting in direct contact with the metal to produce a high temperature at the time of friction welding gear will make two surfaces stick together. Two separate metal gear will make when the tooth surface is torn, the teeth surface forming grooves. Two gear surface three pairs Kun type sand maker equipment can cause tooth wear, especially in the open operation because of dust, sand and other particles into the tooth surface caused by wear and tear between the relative sliding of serious wear and tear when the tooth surface When will lose the right to make teeth tooth. At work we have to do maintenance on equipment, in order to avoid reducing the efficiency of our work, to increase the loss of business. How to better control content and the fineness of grinding? Grinding content means the mass fraction of the pulp mill inside. The grinding fineness means feed mill discharge a specified level of content. Grinding mass fraction and the grinding fineness are interrelated and influence each other four roll crusher, production operations mainly by grinding to a mineral water (the water) adjusted to control. Open circuit grinding, grinding the mass fraction of factors that affect the nature of the ore (mainly particle size composition), to the ore and to mineral water. Factors affecting the grinding fineness of ore size distribution in addition to foreign as well as grinding and processing mass fraction ball system. When the change in the nature of the ore, if coarse increase, to mine the same amount should be reduced after water, improve the grinding quality assurance scores grinding fineness, if the fine should be increased to increase the water, appropriate to increase the amount of ore to reduce over crushed. In the nature of the ore to maintain the same conditions and media conditions cone crusher, within a certain range general grinding fineness of grinding with increasing mass fraction and higher, and vice versa lower fineness. All in all, by adjusting the amount of water to adjust to the grinding mass fraction, and then control the grinding fineness. When the closed-circuit grinding, the situation becomes more complex, increasing the amount of sand of a return factor. Water supply is constant, and return the original to increase ore grinding sand will make content increase, and vice versa reduced. The grinding fineness except by the return rate on the sand, but also affected the classification efficiency. When a large amount of sand back, the whole feed size composition changes that increase the amount of fine particles, grinding speed, grinding should be appropriately reduced concentration, increased discharge speed to reduce over crushed ore. When returning to reduce the amount of sand and coarse ore to improve grinding should reduce the water content. Our company specializes in the production of stone washing machine, sand washing machine and a washing grinding equipment, the company has many years of experience and a wide range of devices using the site, you need to know more about the industry and users need to visit the nearby site of equipment can call us Tieling crusher crusher manufacturers _ _ North Mine Zhongcheng Zhongcheng from Shenyang North mine equipment Limited. Shenyang North Mine Zhongcheng equipment Limited (sybkzc.com) (www.sybkzcjq.com) strong, credible, in Shenyang, Liaoning province machining industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the public into Shenyang North mine equipment Limited and you hand in hand into the brilliant, for a better future!