Device for injecting preheated air into a shaft furnace
US4940005A · kind A · utility
3Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 25, 1989 |
| Grant date | Jul 10, 1990 |
| Priority date | — |
| Expiry date | May 25, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G69/0458
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The device is composed of several tubular elements equipped with an inner refractory lining and connected, on one side, to the wall of the furnace by means of a downpipe, an elbow, a tuyere and a nozzle and, on the other side, to a main circular pipeline arranged round the furnace and fed with preheated air. Cooling coils are embedded in the mass of refractory lining and are fed with cooling air circulating through the coils in the same direction as the preheated air. The outlet of the coils opens into the inner conduit conveying the preheated air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.