Furnaces – With exhaust gas treatment means
Patent
1987-10-26
1988-12-06
Favors, Edward G.
Furnaces
With exhaust gas treatment means
110345, 266154, F23J 1500
Patent
active
047889179
ABSTRACT:
A method and apparatus for removing undesired compounds such as alkali compounds from a shaft furnace such as a blast furnace. The process and apparatus includes providing a plurality of intermediate exhaust conduits or manifolds within the shaft furnace for withdrawing some of the furnace gases which may be rich in alkali or other undesirable compounds from the furnace while allowing the balance of the gases of combustion to rise through the furnace. These conduits are positioned so that the temperature below the conduits is higher than the temperature at which the alkali compounds will volatilize and the temperature above the conduits is lower than the temperature at which the alkali compounds will condense so that the undesirable alkali compounds are in a vapor state when they are withdrawn from the furnace through the intermediate exhaust conduits. These alkali rich gases are then exposed to a cool surface such as an abrasive material being pneumatically conveyed through the intermediate conduits so that the alkali compounds condense on the cool surface. An apparatus and method including a fluidized bed system is also disclosed for cleaning the abrasive material so that it can be recycled to the conduits within the furnace.
REFERENCES:
patent: 3876189 (1975-04-01), Jackson et al.
patent: 4643110 (1987-02-01), Lisowyj et al.
Favors Edward G.
Fuller Company
Thomson Frank H.
LandOfFree
Shaft furnace bypass system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Shaft furnace bypass system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shaft furnace bypass system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1488531