| 摘要 |
1. Charging device for a blast furnace with a blast furnace body (1) showing a closable upper opening and comprising a stationary hopper (2) with a closable lower opening (2.1) which is fed raw materials from a feed device (3), characterized in that a rotary hopper (4) with a closable lower opening (4.4) is arranged between the opening of the blast furnace (1) and the stationary hopper (2), that the rotary hopper (4) supports a cover (8) covering the opening in the blast furnace body (1), that a seal (10) preventing discharge of gas from the blast furnace is arranged between the cover (8) and the blast furnace body (1) and that a chute (9) pivoted about a horizontal axle is firmly connected with the rotary hopper (4) pointed downwards into the blast furnace. 2. Device according to Claim 1, characterized in that the seal (10) is a water-lock. 3. Device according to Claim 2, characterized in that the water-lock (10) comprises at least one elastic seal flange (8.4, 13) preventing a blow-off of gas and water by a slot (8.5) between the blast furnace body (1) and the cover (8). 4. Device according to Claim 3, characterized in that the water-lock (10) comprises one or more ring-shaped seal lips (13) partly bearing against the cover (8, partly against a ring flange (1.1) on the blast furnace body (1). 5. Device according to Claims 2-4, characterized in that the rotary hopper (4) is connected with the cover (8) via a mainly cylinder-shaped mantle (7) which down in the lower part is provided with a sealed valve (8.2) against the blast furnace, that the rotary hopper (4) is closable down in the lower part with a valve (4.5) arranged inside the cylinder-shaped mantle (7) for emptying raw materials and that the cylinder-shaped mantle (7) shows upper and lower contact flanges (7.1) towards the rotary hopper (4) and the cover (8) respectively, whereby the mantle (7) with the valve (4.5) can be removed sideways from the charging device. 6. Device according to Claims 1-5, characterized in that the lower opening (2.1) of the stationary hopper (2) towards the rotary hopper (2) is closable with a vertically adjustable bell (2.2) arranged on a vertical first pipe-shaped member (2.3). 7. Device according to Claim 6, characterized in that electric cables and similar devices on the rotary hopper (4) run through a vertical second pipe-shaped member (4.6) which runs inside the vertical first pipe-shaped member (2.3) and is connected with the rotary hopper (4) via one or more arms (4.7). 8. Device according to Claims 1-7, characterized in that the rotary hopper (4) is provided with a gas-tight valve (4.2) on its upper opening, which is connected with the lower opening (2.1) in the stationary hopper. |
