Abstract: To improve the position of a cylindrical ceramic hollow body the invention relates to a securing device for use with a gas purging brick, where the securing device has the following characteristics in its operational position: A base body which, with its bottom and a circumferential wall, defines a cylindrical space with a corresponding central longitudinal axis, the bottom features an opening whose longitudinal axis aligns with the central longitudinal axis the bottom features a ring-shaped channel which extends concentrically around the opening. at least an inner wall of the channel which is adjacent to the opening consists of a material which is plastically ductile under the application of pressure, a ring-shaped compact whose radial wall cross-section increases in size upwards from a lower free end, so that the inner wall of the channel deforms plastically, thereby reducing the cross section of the opening, after the compact is pressed into the channel.

Abstract: Refractory ceramic gas purging element, comprising: a refractory ceramic body, a chamber is arranged at the first end (10u) of the refractory ceramic body (10), which chamber extends over at least 50% of the cross section of the refractory ceramic body at its first end, a gas feeding line enters into said chamber, at a distance to said refractory ceramic body, at a section towards the refractory ceramic body the chamber is at least partially permeable to gas, the chamber comprises at least one plate, which is freely moveable in an axial direction of the gas purging element between a first end position and a second end position, the plate is dimensioned, shaped and placed in the chamber such that a gas flow from the gas feeding line through said chamber up to the first end is even secured when the plate is in its second end position.

Abstract: To improve the position of a cylindrical ceramic hollow body the invention relates to a securing device with the following characteristics in its operational position: A base body which, with its bottom and a circumferential wall, defines a cylindrical space with a corresponding central longitudinal axis, the bottom features an opening whose longitudinal axis aligns with the central longitudinal axis the bottom features a ring-shaped channel which extends concentrically around the opening. at least an inner wall of the channel which is adjacent to the opening consists of a material which is plastically ductile under the application of pressure, a ring-shaped compact whose radial wall cross-section increases in size upwards from a lower free end, so that the inner wall of the channel deforms plastically, thereby reducing the cross section of the opening, after the compact is pressed into the channel.

Abstract: Refractory ceramic gas purging element, comprising the following features: the gas purging element has a refractory ceramic body (10), through which a gas can flow in an axial direction (A-A) of the gas purging element, between its first end (10u) and its second end (10o), a chamber (20) is arranged at the first end (10u) of the refractory ceramic body (10), which chamber extends over at least 50% of the cross section of the refractory ceramic body at its first end (10u), a gas feeding line (30) enters into said chamber (20), at a distance to said refractory ceramic body (10), at a section towards the refractory ceramic body (10) the chamber (20) is at least partially permeable to gas, in the chamber (20) at least one plate (50) is arranged, which is freely moveable in the axial (A-A) direction of the gas purging element between a first end position, being offset to the refractory ceramic body (10), and a second end position, being adjacent but at a distance to a section of the refractory ceramic body (10) wh

Abstract: A copper anode furnace includes a furnace drum which can be pivoted about a horizontal axis and in which copper melt is refined into anode copper by fire refining. The furnace drum is provided with a spout for pouring out the refined copper. A sliding closure is arranged on the spout of the furnace drum. The sliding closure includes at least one stationary, fireproof closing plate and a fireproof sliding plate which can be displaced relative to the closing plate. Through the displacement of the sliding plate, the outflow out the furnace drum can be regulated or closed and therefore the outflow amount of the copper can be controlled. A drawing of slag into the casting, which reduces the anode quality, can be prevented using the sliding closure.

Abstract: A copper anode furnace comprises a furnace drum (2), which can be pivoted about a horizontal axis and in which copper melt is refined into anode copper by means of fire refining. Said furnace drum (2) is provided with a spout (10) for pouring out the refined copper. A sliding closure (20) is arranged on the spout (10) of the furnace drum (2). Said sliding closure comprises at least one stationary, fireproof closing plate (21) and a fireproof sliding plate (22) which can be displaced relative to said closing plate. Through the displacement of the sliding plate (22), the outflow out the furnace drum (2) can be regulated or closed and therefore the outflow amount of the copper can be controlled. A drawing of slag into the casting, which reduces the anode quality, can be prevented using said sliding closure (20).