Steplessly adjustable device for injecting black liquor into a soda digester
US4416422A · kind A · utility
5Cited by
4References
6Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Jul 1, 1981 |
| Grant date | Nov 22, 1983 |
| Priority date | — |
| Expiry date | Jul 1, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B1/267
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a device for adjusting the flow quantity and drop size of black liquor to be injected into a soda digester, an outflow opening with an adjustable cross-sectional area, relatively rotatable coaxial outer and inner pipes, the outer pipe being provided with an end piece covering a part of the outer end of the outer pipe and the inner pipe being provided with a nozzle piece covering a part of the outer end of the inner pipe, the outflow opening being formed by an opening remaining outside the areas covered by the end piece and the nozzle piece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.