Method for preheating coal for coking
Patent
·
OSTI ID:6544692
A method of preheating coal for coking comprises bringing a hot operating gas into direct contact with the coal to preheat the coal. Both the coal and the operating gas are passed into a separator and the separator is operated so as to effect the separation of the coarse preheated coal for delivery to the coke oven from the operating gases and coal dust. The operating gases and coal dust are then passed into a deduster to remove the coal dust from the operating gases. A portion of the removed dust is continuously directed into an accumulator. The dust is either supplied from the deduster or the accumulator to a combustion furnace where it is burned to generate at least a portion of the operating gas. The amount of coal dust which is accumulated in the accumulator is checked regularly and the separator is operated so as to produce sufficient dust to maintain a desired operating level in the accumulator so that dust will always be available in a sufficient quantity to operate the combustion chamber for supplying the operating gases.
- Assignee:
- IFI; EDB-81-053557
- Patent Number(s):
- US 4240877
- OSTI ID:
- 6544692
- Country of Publication:
- United States
- Language:
- English
Similar Records
Process and apparatus for drying and preheating coking coal by means of flue gas
Method for operating coke oven chambers in connection with a predrying plant for the coal
Coke oven with apparatus for partially drying and preheating coal
Patent
·
Mon Dec 28 23:00:00 EST 1981
·
OSTI ID:5712281
Method for operating coke oven chambers in connection with a predrying plant for the coal
Patent
·
Mon Nov 26 23:00:00 EST 1979
·
OSTI ID:5499979
Coke oven with apparatus for partially drying and preheating coal
Patent
·
Tue Sep 08 00:00:00 EDT 1981
·
OSTI ID:5867394