Cleaning method for pulverized coal injection system equipment using coke breeze
US5447571A · kind A · utility
4Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1994 |
| Grant date | Sep 5, 1995 |
| Priority date | — |
| Expiry date | Mar 7, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23K3/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of cleaning, either continuously or intermittently, a pneumatically operated pulverized coal system by injecting into this system a stream of generally uniformly sized coke breeze particles. This coke breeze stream would abrade the interior surface of the pulverized coal system thereby cleaning it. Additionally, due to the high carbon content of the coke breeze, this substance will replace or displace a portion of the coal stream delivered to the furnace. Furthermore, such use of coke breeze will eliminate the need to dispose of this by-product in cases where alternative uses are not available.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.