Vertical grinding mill
US4754934A · kind A · utility
16Cited by
0References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1987 |
| Grant date | Jul 5, 1988 |
| Priority date | — |
| Expiry date | Feb 24, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C17/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved vertical grinding mill is proposed which comprises a shell, a vertical screw shaft rotatably mounted in the shell, a classifying means, a drive for the screw shaft, and means for forming a current of fluid for taking fine particles out of the shell. The inlet for the fluid is provided in the center of the bottom of the shell directly under the screw shaft. The fluid is uniformly distributed in all directions, carrying up the pulverized fine particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.