Patent · US Expired

System for discharging rotary mills

US4603814A · kind A · utility

4Cited by
4References
26Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 15, 1985
Grant dateAug 5, 1986
Priority date
Expiry dateMar 15, 2005

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S241/14
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A batch-type rotary grinding mill operable under seal to the atmosphere is provided with a discharge system which permits discharge of material from the mill under seal and without disturbing the seal in the mill. The discharge system comprises at least one discharge chute which is sealably secured to the shell wall, spiraling adjacent to the shell and traversing the shell wall from one end to the other. The material is discharged from the discharge chute via a hollow trunnion which, preferably, contains a conveyor to aid in passing the material out of the mill into an environmentally protected device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.