Solid material pulverizer
US5820044A · kind A · utility
6Cited by
5References
22Claims
0Family size
Inventor
Key dates
| Filing date | Apr 25, 1997 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Apr 25, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C13/18
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A solid material pulverizer using a vertical shaft has a plurality of bearings above a lower fixed bearing that are resiliently held in fixed mounts allowing the bearings to rise vertically against spring pressure as the shaft lengthens from thermal expansion. Impellers fixed to the shaft between the bearings hurl solid material against rings arranged around the impellers, and the rings have multi-sided interiors with ridges and grooves confronting the impeller and angled inward from bottom to top of each ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.