Treatment to enhance heat retention in coal and biomass burning furnaces
US5819672A · kind A · utility
18Cited by
3References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1995 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Apr 6, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S165/904
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The present invention provides a method and composition for on-line treatment of furnace walls that are subject to deposition of highly reflective ash. The method involves exposing the walls to a darkening agent, or a combination of a darkening agent and a fluxing agent. The darkening agent, or the combined darkening agent and fluxing agent, may be mixed with the coal before it enters the boiler. Preferably, the appropriate walls of the boiler are treated directly with the darkening agent. A preferred embodiment involves direct application of the darkening agent to the water wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.