Vibratory high pressure coal feeder having a helical ramp
US4071151A · kind A · utility
14Cited by
2References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 24, 1976 |
| Grant date | Jan 31, 1978 |
| Priority date | — |
| Expiry date | Nov 24, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10J2300/093
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Apparatus and method for feeding powdered coal from a helical ramp into a high pressure, heated, reactor tube containing hydrogen for hydrogenating the coal and/or for producing useful products from coal. To this end, the helical ramp is vibrated to feed the coal cleanly at an accurately controlled rate in a simple reliable and trouble-free manner that eliminates complicated and expensive screw feeders, and/or complicated and expensive seals, bearings and fully rotating parts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.