System and method for firing coal having a significant mineral content
US4438709A · kind A · utility
39Cited by
7References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 27, 1982 |
| Grant date | Mar 27, 1984 |
| Priority date | — |
| Expiry date | Sep 27, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23C2201/301
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A conventional pulverized coal-fired furnace is supplied fuel at two different levels. The raw coal is classified into a stream of relatively pure coal ground to conventional fineness for burners at the lower level, and a stream of very finely divided coal with a large, heavy mineral content for burners at the higher level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.