Pulp dispersion lance
US5188296A · kind A · utility
13Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1991 |
| Grant date | Feb 23, 1993 |
| Priority date | — |
| Expiry date | Apr 2, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B7/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The lance of the invention includes a sleeve (2A) which conveys air under pressure around a central tube (1) which conveys the pulp that is to be sprayed and dispersed. The wall of this tube is pierced by separation holes (5) to inject a gaseous lining around the pulp, by break-up holes (3) for breaking up said pulp, and by rotation-imparting holes (4) in the vicinity of the outlet (1B) from the lance. The invention is particularly applicable to feeding a boiler with coal powder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.