Abstract: In a device for fastening a perforated block to a metal melt container, the perforated block can be fastened by at least one clamping wedge which can be inserted transversely with respect to its through opening and which has a clamping jaw coupled thereto, wherein this clamping jaw acts on a clamping surface formed on the circumferential surface of the perforated block. The respective clamping wedge is guided in a carrier plate so as to be displaceable in its longitudinal extent or extension and transversely with respect thereto, while the clamping jaw coupled thereto can be moved in this transverse direction. Consequently, the perforated block can be fastened with precise positioning in the carrier plate in a simple manner.

Abstract: The invention relates to a sliding closure for a metallurgical vessel, comprising at least two fireproof closure plates (3, 4, 5) that can be pressed against each other and can each be clamped in a plate frame (7, 8, 9) by means of clamping jaws (10, 11, 12) that can be actuated by means of an eccentric unit (15). In order to actuate the clamping jaws (10, 11, 12), the eccentric units (15) are each provided with a rotary part (151), which has an upper and lower eccentric (28 and 29) and a centering pin (30), which is supported in the plate frame (7, 8, 9), wherein the one eccentric (28) acts on the clamping jaw (10, 11, or 12). Advantageously, the upper eccentric (29) interacts with a part (34) of the plate frame (7, 8, 9) in such a way that the upper eccentric is pressed against said part (34) in a clamping direction in the outer region (36) of the upper eccentric when the clamping jaw (10, 11, 12) is released. Thus, a plate exchange can be performed safely.

Abstract: In a device for fastening a perforated block (1) to a metal melt container, the perforated block (1) can be fastened by means of at least one clamping wedge (36) which can be inserted transversely with respect to its through opening (D) and which has a clamping jaw (35) coupled thereto, wherein this clamping jaw (35) acts on a clamping surface (13) formed on the circumferential surface of the perforated block (1). The respective clamping wedge (36) is guided in a carrier plate (33) so as to be displaceable in its longitudinal extent and transversely with respect thereto, while the clamping jaw (35) coupled thereto can be moved in this transverse direction. Consequently, the perforated block can be fastened with precise positioning in the carrier plate (33) in a simple manner.

Abstract: The invention relates to a sliding closure (1) for a metallurgical container, comprising two fireproof closing plates (3; 5), of which one is arranged in a slide unit (6) and is used to open and close a spout opening (10). The other closing plate (3) is arranged in a metal housing (2) that can be fastened to the container. Said stationary housing (2) and the slide unit (6) also accommodate an upper fireproof inlet sleeve (4) on the container side and a lower fireproof spout sleeve (8). In the housing (2) and in the slide unit (6), at least one additional inner part (2a, 2a?, 7a) is arranged in each case, each additional inner part enclosing the spout sleeve (8) or the inlet sleeve (4). Thus, thermal stresses in the slide unit or in the housing can be reduced and the risk of cracks forming can be significantly reduced.

Abstract: The invention relates to a sliding closure (1) for a metallurgical container, comprising two fireproof closing plates (3; 5), of which one is arranged in a slide unit (6) and is used to open and close a spout opening (10). The other closing plate (3) is arranged in a metal housing (2) that can be fastened to the container. Said stationary housing (2) and the slide unit (6) also accommodate an upper fireproof inlet sleeve (4) on the container side and a lower fireproof spout sleeve (8). In the housing (2) and in the slide unit (6), at least one additional inner part (2a, 2a?, 7a) is arranged in each case, each additional inner part enclosing the spout sleeve (8) or the inlet sleeve (4). Thus, thermal stresses in the slide unit or in the housing can be reduced and the risk of cracks forming can be significantly reduced.