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, and 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 grader, if the increased fines should increase 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 classifier role, 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 Yield spiral classifier What factors? Yield how decisions spiral classifier based primarily on merit classifier speed and width of the tank spiral classifier to decide that it was how the decision? Spiral speed should meet in order to send the settlement with grit. Classifier speed, the faster the screw shaft centrifugal classifier, the agitation of the slurry, the stronger, the more coarse particles entrained in the overflow product. In order to obtain a thicker handle overflow and faster than the major settlement material, the spiral speed can be increased, but not too large, so as not to destroy the grading effect. But for secondary grinding or grinding cycle used in the classifier, the screw speed should try to slow down some. In the spiral classifier generally used in low speed, especially for large spiral classifier. For example, to obtain a crude overflow, 2m diameter screw speed can not exceed 6r / min, generally more than 1m in diameter screw speed should be controlled at 2 ~ 8 r / min. The width of the trough overflow discharge speed has a lot of products, wide trough the overflow discharge speed and, therefore, the greater the likelihood of coarse discharged with the overflow. But on the other hand, the wider the ore trough of the greater size of the settlement, easy settlement. Therefore trough of width on grading effect is not great, but with the processing power is closely related grader. The width of the trough, there is a large processing capability. On the other hand, the processing capacity is small. Therefore, the width of the groove grader should be the size of the mill processing capacity to adapt. Spiral classifier beneficiation process is an important device, which is widely applied to various ore beneficiation operations, improve mineral production is an important device. If the user needs related to direct contact to learn more about our spiral classifier grader action | Huludao grader | Shenyang North Mine congregation into a congregation 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 North mine into the brilliant and you work for a better future!