A cooling vessel for metal recovery from waste products including a first open end, a second closed end, and a sidewall extending between the first open end and the second closed end. The vessel has a longitudinal central axis extending from the first open end to the second closed end. In a plane including the longitudinal axis and extending from the first open end to the second closed end, opposing interior surfaces of the vessel are at an angle of 30-50 to one another. The thickness of the sidewall adjacent the second closed end is greater than the thickness of the sidewall at the first open end. A diameter of the inner surface of the vessel along a first major axis may be greater than a diameter of the inner surface of the vessel along a second minor axis such that a cross-section of the vessel is oval.

A cooling vessel for metal recovery from waste products including a first open end, a second closed end, and a sidewall extending between the first open end and the second closed end. The vessel has a longitudinal central axis extending from the first open end to the second closed end. In a plane including the longitudinal axis and extending from the first open end to the second closed end, opposing interior surfaces of the vessel are at an angle of 30-50 to one another. The thickness of the sidewall adjacent the second closed end is greater than the thickness of the sidewall at the first open end. A diameter of the inner surface of the vessel along a first major axis may be greater than a diameter of the inner surface of the vessel along a second minor axis such that a cross-section of the vessel is oval.

A metallurgical system for producing metals and metal alloys includes a fluid cooled mixing cold hearth having a melting cavity configured to hold a raw material for melting into a molten metal, and a mechanical drive configured to mount and move the mixing cold hearth for mixing the raw material. The system also includes a heat source configured to heat the raw material in the melting cavity, and a heat removal system configured to provide adjustable insulation for the molten metal. The mixing cold hearth can be configured as a removal element of an assembly of interchangeable mixing cold hearths, with each mixing cold hearth of the assembly configured for melting a specific category of raw materials. A process includes the steps of providing the mixing cold hearth, feeding the raw material into the melting cavity, heating the raw material, and moving the mixing cold hearth during the heating step.

A metallurgical system for producing metals and metal alloys includes a fluid cooled mixing cold hearth having a melting cavity configured to hold a raw material for melting into a molten metal, and a mechanical drive configured to mount and move the mixing cold hearth for mixing the raw material. The system also includes a heat source configured to heat the raw material in the melting cavity, and a heat removal system configured to provide adjustable insulation for the molten metal. The mixing cold hearth can be configured as a removal element of an assembly of interchangeable mixing cold hearths, with each mixing cold hearth of the assembly configured for melting a specific category of raw materials. A process includes the steps of providing the mixing cold hearth, feeding the raw material into the melting cavity, heating the raw material, and moving the mixing cold hearth during the heating step.

A metallurgical furnace including a vessel, in turn having a lower shell for containing the metal bath, the metal bath being composed of molten metal and an overlying layer of slag, wherein the lower shell is tiltingly supported and is provided with a deslagging opening for evacuating the slag and with a tapping opening for tapping the molten metal, and an upper shell removably positioned on the lower shell and provided with at least one inlet opening for feeding, through the same, charge material in the solid state or in the molten state, a closing roof for the upper closing of the vessel, wherein the closing roof is removably positioned on the upper shell and is provided with a passage opening for the passage, through the same, of at least one electrode and at least one charge opening for feeding, through the same, charge material in the solid state, wherein at least one of the inlet openings, the passage opening, the charge opening is closed or can be associated with a closing element of the removable type, and wherein the lower shell has a diameter D and the vessel has an overall height H ranging from 0.70 D to 1.25 D, preferably ranging from 0.70 D to 0.80 D if the furnace is used as an electric arc furnace and from 0.80 D to 1.25 D if the furnace is used as a converter.

A metallurgical furnace including a vessel, in turn having a lower shell for containing the metal bath, the metal bath being composed of molten metal and an overlying layer of slag, wherein the lower shell is tiltingly supported and is provided with a deslagging opening for evacuating the slag and with a tapping opening for tapping the molten metal, and an upper shell removably positioned on the lower shell and provided with at least one inlet opening for feeding, through the same, charge material in the solid state or in the molten state, a closing roof for the upper closing of the vessel, wherein the closing roof is removably positioned on the upper shell and is provided with a passage opening for the passage, through the same, of at least one electrode and at least one charge opening for feeding, through the same, charge material in the solid state, wherein at least one of the inlet openings, the passage opening, the charge opening is closed or can be associated with a closing element of the removable type, and wherein the lower shell has a diameter D and the vessel has an overall height H ranging from 0.70 D to 1.25 D, preferably ranging from 0.70 D to 0.80 D if the furnace is used as an electric arc furnace and from 0.80 D to 1.25 D if the furnace is used as a converter.

A dry-break electrical disconnect is provided between an induction melting furnace and a component of the electric induction melting assembly in which the furnace is removably installed for melting in a vacuum or otherwise controlled environmental chamber. Electric power connections are made to the induction melting furnace in a sealed interior volume of the assembly component that can be pressurized and of a different environment than that in the controlled environmental chamber. The assembly component may be a tilting cradle installed in the controlled environment chamber.

A dry-break electrical disconnect is provided between an induction melting furnace and a component of the electric induction melting assembly in which the furnace is removably installed for melting in a vacuum or otherwise controlled environmental chamber. Electric power connections are made to the induction melting furnace in a sealed interior volume of the assembly component that can be pressurized and of a different environment than that in the controlled environmental chamber. The assembly component may be a tilting cradle installed in the controlled environment chamber.

An installation for recycling contaminated scrap metal includes a furnace frame and a melting furnace arranged within the furnace frame and configured to tilt, and a hood-like housing. The melting furnace includes an upper melting furnace opening and a casting device configured to cast a metal melt produced in the melting furnace into a pan. The hood-like housing is positioned on a top of the melting furnace and surrounds and covers the upper melting furnace opening. The hood-like housing includes at least one door, and a flue gas removal system coupled to the hood-like housing in a gas-tight manner and configured to tilt along with the melting furnace.

An installation for recycling contaminated scrap metal includes a furnace frame and a melting furnace arranged within the furnace frame and configured to tilt, and a hood-like housing. The melting furnace includes an upper melting furnace opening and a casting device configured to cast a metal melt produced in the melting furnace into a pan. The hood-like housing is positioned on a top of the melting furnace and surrounds and covers the upper melting furnace opening. The hood-like housing includes at least one door, and a flue gas removal system coupled to the hood-like housing in a gas-tight manner and configured to tilt along with the melting furnace.