Pre-riffle box mixing device for coal-fired power plant
US6055914A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 9, 1997 |
| Grant date | May 2, 2000 |
| Priority date | — |
| Expiry date | Dec 9, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23K2203/201
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
In a coal-fired power plant having an exhauster fan for delivering coal/air flow through a discharge chute to a combustion chamber and further having a riffle box in the discharge chute, a mixing device located in the discharge chute between the exhauster fan and the riffle box for causing heavy and light distribution regions of the coal/air flow from the fan to converge upstream of the riffle box, thereby mixing them into a more homogeneous flow. In a preferred form, the device comprises a plurality of concentric, inwardly-angled rings located in the discharge chute to cause the heavy and light distribution regions of coal/air flow to converge after passing through the rings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.