Plural bowl mills in series
US4127237A · kind A · utility
8Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1977 |
| Grant date | Nov 28, 1978 |
| Priority date | — |
| Expiry date | Dec 27, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C15/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A bowl mill for pulverizing coal, wherein two bowl surfaces are rotated on the same shaft. The raw crushed coal is pulverized in one of the bowls, and the pulverized coal therefrom is then transported in an air stream to a classifier from where the fines are carried on to the ultimate point of use, and the more coarse particles are discharged into the second bowl for further grinding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.