| 摘要 |
The burner holder comprises a retaining portion (13) for fastening a burner, and a mounting portion (14) for fastening the holder at a furnace or a furnace assigned shell element. The retaining portion is movable relative to the mounting portion and connected to the mounting portion via a parallel-crank mechanism. The parallel-crank mechanism comprises four hinged members, where the first two members are arranged at the mounting portion, and the second two members are arranged in the retaining portion. The parallel-crank mechanism is provided with struts. The burner holder comprises a retaining portion (13) for fastening a burner, and a mounting portion (14) for fastening the holder at a furnace or a furnace assigned shell element. The retaining portion is movable relative to the mounting portion and connected to the mounting portion via a parallel-crank mechanism. The parallel-crank mechanism comprises four hinged members, where the first two members are arranged at the mounting portion, and the second two members are arranged in the retaining portion. The parallel-crank mechanism is provided with struts that are pivotally connected to each other about pivot axes. A position element is provided for automatically adjusting the parallel-crank mechanism. The position element is arranged at a pivotal axis, over which the two members are more swingably connected on the mounting portion. The position element is a pneumatic or hydraulic cylinder actuated by a ball screw drive. The parallel-crank mechanism is vertically adjustable over an adjustment device (24). The adjustment device comprises a screw drive. |
