Vertical Mill VS Ball Mill
Host: Vertical mill and ball mill are very widely used grinding equipment. They each have their own advantages and disadvantages. Today, we are honored to invent Mr. Grinder to analyze the comparison between vertical mill and ball mill. Welcome, Mr. Grinder!
Mr. Grinder: Hello, everyone! I'm glad to participate in the interview. Hope it is helpful for everyone.
Host: How do you do, Mr. Grinder! Can you help us to analyze the vertical mill and ball mill?
Mr. Grinder: I'm glad. First, in the grinding efficiency, vertical mill uses the bed grinding principle to grind materials. It is 30% of higher than ball mill. In the drying capacity, vertical mill can dry the materials with 12% -15% of moisture, while ball mill only can dry the materials with 3% -4% of moisture. Vertical mill use the hot gas to convey material. When grinding the material with larger moisture, it can control the inlet temperature, so that products meet the final moisture.
Host: Mr. Grinder, as far as I know, the construction investment of vertical mill is lower than ball mill, isn't it?
Mr. Grinder: Yes. Vertical mill saves the construction investment. Vertical mill has the separator, using hot flue gas to convey material, and do not need the powder selecting machine and elevator. Vertical mill system has the advantages of simple process, low failure rate, high operation rate, and compact layout. Its construction area is smaller of 70% than ball milling. The building space is ball mill's 50-60%.
Host: Oh. Through the analysis and comparison between vertical mill and ball mill, we have a preliminary acquaintance. Anything else?
Mr. Grinder: In addition, vertical mill has the environment protection advantage. During working, vertical mill has the low noise and little dust. The grinding roller and the grinding disc are not in direct contact. Its noise is 20-25 dB lower than the ball mill. Vertical mill adopts a whole sealing system operation, under negative pressure. It has the advantages of less dust and the clean environment.
Host: Very great. Thanks Mr. Grinder for your wonderful analysis. I believe today's interview will be helpful. Thank you, Mr. Grinder!
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