The methods to improve the powder yield and production efficiency of the Raymond mill are as follows:
1.Reasonably select the speed of the main engine and improve the grinding power of the main engine.
Since the grinding force is mainly the centrifugal force of the grinding roller, the speed of the main engine directly affects the grinding force. If the engine speed is low, the centrifugal force is insufficient, which in turn leads to insufficient grinding force, which may affect the powder yield.
The low speed of the drive shaft may be one of the reasons for the low powder yield. Insufficient power, loose transmission belt, or severe wear can cause the drive shaft to slow down unsteadily. To solve this problem, the tension of the drive belt can be checked and adjusted, or it can be replaced with a new one. At the same time, check the power system to make sure there is enough power.
Recommendations:Increase the kinetic energy of the mill, adjust the belt or replace it.
2.Reasonably adjust the air pressure and air volume of the blower.
Differences in the physical properties and chemical composition of non-metallic mineral raw materials can have an impact on the production process and product quality. For example, graphite, gypsum and other less dense minerals need to be smaller when adjusting the wind pressure and air volume, otherwise the coarse particles may not be graded well when the classifier is screened, which will be mixed into the finished product and lead to unqualified products.
3.The reasonable design of the blade device and the selection of wear-resistant materials for the grinding roller and grinding rings.
The blade device is an important device between the grinding roller and the grinding ring that directly shovels the material, after technological development and improvement, the blade of Raymond mill is designed to be more reasonable, which can shovel up and let the material be fully ground between the grinding roller and the grinding ring.
Serious wear of major grinding wearing parts such as shovels, grinding rollers, grinding rings will affect the powder yield, and it is necessary to choose wear-resistant parts with high wear-resistant materials, such as high-chromium cast iron. The shovel blade cannot shovel the material, the grinding roller and grinding ring are seriously worn, and the grinding effect cannot play a good grinding role, resulting in low powder processing rate, and the wearing parts should be replaced in time after wear.