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The machine adopts the advanced structures of similar products from home and abroad, and gets improved on the basis of Raymond mills in the same industry. It is more efficient than ball mill, which also has the advantages of low power consumption, small floor space and one-time investment. The grinding roll presses the ring under the function of RCC tightly, so even if they were grinded to a certain extent, it wouldn’t influence the amount and fineness of finished products. The roll and the ring both have a long replacement cycle, thus the drawback of centrifugal mill is eliminated. The winnower air operates round winnower machine-mill shell-- cyclone separator. So compared with high-speed centrifugal crusher, Raymond mill has less dust and workshops are much cleaner.
The lump material will be conveyed into the storage bin by the bucket elevator after it is crushed into the required particle size by the jaw crusher. Then electro-vibrating feeder will uniformly transfer the material into the grinding chamber of the host machine. The material is up-thrown and fed into the space between the grinding roller and grinding ring in the process of synchronous rotation of the shovel and the grinding roller, and forms a cushion material layer. The material on this layer is grinded between the grinding roller and the grinding ring. Thus, the purpose of powder production is achieved. The grinded powder will be carried by the airflow of the fan into the analyzer for classification. The powder with the qualified fineness will enter the large cyclone collector, together with the airflow through the pipes, for classification, and then, will be discharged by the discharging device, as the finished product. The airflow is sucked into the air blower through the air-return pipe on the upper part of the large cyclone collector. The unqualified powder will be thrown to the external wall by the airflow and separated from the airflow. The coarse powder will fall into the grinding chamber for re-grinding due to its own gravity. The whole airflow system is closed and cyclic, and it flows under the positive and negative pressure circularly.
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