Apparatus for equalizing pressure in shaft furnaces
AssigneeMannesmann Aktiengesellschaft
InventorHans Barmann
Life of this patent
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Abstract
An apparatus for equalizing the pressure in shaft furnaces which are operated at a pressure in excess of atmospheric pressure. At least one storage bin is connected to the furnace chamber, although isolated from the atmosphere and the furnace chamber by sealing valves. A gas pipeline serves to selectively supply or exhaust gas to the storage bin to equalize pressure. In one embodiment of the invention, two storage bins are interconnected by a gas pipeline and appropriate valves for equalizing pressure between the storage bins.
Claims8
An apparatus for use in connection with metallurgical shaft furnaces which operate at pressures in excess of atmospheric pressure, comprising:
- (a) a metallurgical blast furnace having a furnace top with a furnace chamber located therebelow;
- (b) at least one charge material storage bin connected to and located above said furnace chamber;
- (c) said storage bins being sealed from the atmosphere by a charge material inlet seal;
- (d) said storage bins being sealed from said furnace chamber by a storage bin exit seal;
- (e) a gas supplying conduit connected to said storage bins for selectively supplying pure gas to said storage bins or for exhausting gas from said storage bins into the open atmosphere;
- (f) at least one gas chamber vessel;
- (g) a gas pressure equalizing means serving to connect said gas chamber vessels to said storage bins;
- and
- (h) said gas pressure equalizing means having a two-way gas direction switching means for selectively equalizing gaseous pressure in said storage bins and said gas chamber vessels.
Dependencies are inferred from the claim text.