Coal deactivation treatment device
US9617491B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2012 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Jun 21, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L2290/60
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A coal deactivation treatment device for deactivating of coal by means of a treatment gas that is a mixture of air and nitrogen gas is provided with, among other things: a treatment column inside of which coal flows from the top to the bottom; treatment gas feed means, and the like, for feeding treatment gas to the inside of the treatment column; humidifying heaters for heating and humidifying the treatment gas such that the treatment gas fed to the inside of the treatment column can maintain a relative humidity of 35% or greater, even at 95° C.; a temperature sensor and a control device for adjusting the temperature inside the treatment column such that the inside of the treatment column is maintained at a relative humidity of 35% or greater and a temperature of 95° C. or lower.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.