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Grinding mill

  • US 4,682,738 A
  • Filed: 11/20/1985
  • Issued: 07/28/1987
  • Est. Priority Date: 11/20/1985
  • Status: Expired due to Fees
First Claim
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1. A grinding mill comprising a mill cylinder, a vertically mounted main shaft coupled at the upper end to a motor mounted atop the mill cylinder to be driven thereby and extending along the axis of the mill cylinder, and means mounted in descending order on the main shaft including a finished product conveying means, a classifying means, a grinding roller means and a decelerating means, a fixed sleeve fixed on the bottom of the mill cylinder to support a rotary bushing by means of bearings, a centrifugal device fixed to the upper end of the rotary bushing, a roller seat fixed likewise to the upper end of the rotary bushing and extending downwardly and radially, a plurality of roller shafts hinged at the lower end to the roller seat so as to pivot relative to the axis of the rotary bushing, and a corresponding plurality of grinding rollers detachably mounted on the upper end of each roller shaft.

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