Underdriven size reduction machine
US5330113A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1993 |
| Grant date | Jul 19, 1994 |
| Priority date | — |
| Expiry date | Mar 29, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C18/062
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A size reduction machine for use in process industries to continuously and precisely reduce the size of particles, while controlling fines, comprises an impeller mounted on a rotatable shaft, a drive operably connected to the shaft for effecting rotation of the shaft. The shaft and impeller are vertically mounted within a vertically extending channel having an input and an output. A screen has a tapered apertured wall formed in a frusto-conical shape. The screen is rigidly mounted within the channel so that any particles passing from the input to the output pass through the screen. The impeller is shaped and mounted so that a gap between an edge of the impeller and an interior of the screen remains substantially constant as the impeller rotates relative to the screen. The improvement comprises the drive being operably connected to the shaft at a point under where the impeller is mounted onto the shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.