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AssigneeSMS Demag AG
InventorsJörg Overländer, Elmar Korbik, Heinz-Peter Marciniak
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The invention relates to a throat closing device for shaft furnaces, especially blast furnaces having a material feeding hopper (1), to which a temporarily rotating rotary hopper (2) which is sealed with regard to the stationary parts (3) is connected. The inventive throat closing device is produced such that it has a less complex construction and is easier to install, and can be easily serviced due to the provision of a sealing unit (5) comprised of an adjusting flange (7) which is arranged above the rotary hopper (2), is complementary to the hopper flange (6) thereof, can be lifted and lowered, and which comprises seals (8, 9) located on the flange underside. Said sealing unit is configured in a spanning wall (12) which comprises a compensating element (13) and which connects the adjusting flange (7) to the stationary part (3) of the rotary hopper (2).
A throat closing device for blast furnaces, comprising a material feeding hopper and a rotary hopper having a temporarily rotating hopper flange and a stationary part attached to the material feeding hopper, a sealing unit comprised of a liftable and lowerable adjusting flange arranged above the hopper flange and being complementary to the hopper flange, flange seals attached to an underside of the adjusting flange, a bridging wall connecting the adjusting flange with the stationary part of the rotary hopper, and a compensating element mounted in the bridging wall.
Dependencies are inferred from the claim text.