Method of combustion and burners
US4577567A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1984 |
| Grant date | Mar 25, 1986 |
| Priority date | — |
| Expiry date | Jun 12, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23D1/005
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A composition comprising a particulate fuel, typically pulverized coal, carried in water is formed such that it is readily able to be pumped without adding emulsifiers or lubricants to the composition. The composition typically includes at least 25% water and preferably 30 to 50% water. The composition is pumped to a burner 2 and is atomized therein, typically by means of a stream of oxygen supplied through a passage 6 in the nozzle 6 of the burner. This oxygen is taken from that supplied to a further passage for supporting combustion of the particulate fuel. A relatively short and intense flame can be produced at relatively low coal concentrations in the composition such that the need to use expensive emulsifiers etc. is avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.