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公开(公告)号：US20210079489A1
公开(公告)日：2021-03-18
申请号：US16772385
申请日：2018-12-14
摘要： A melting furnace for metallurgical plant comprising a vessel provided with a bottom; a tapping duct passing through the bottom; rotation means to rotate the vessel so that the tapping duct passes from a first reference position to a second position inclined with respect to said first reference position, and vice versa; wherein said tapping duct has a first stretch arranged in the thickness of the bottom and completely passing through the bottom, and a second stretch, adjacent to the first stretch, protruding inside the vessel; wherein there is provided a cover of the second stretch shaped as a tube closed at an upper end thereof and open at a lower end thereof; said tube being coaxial and spaced from said second stretch, and being spaced from a zone of the bottom which includes the first stretch of the tapping duct, whereby the cover, in cooperation with the second stretch of the tapping duct, acts as a tapping hood.
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公开(公告)号：US11156402B2
公开(公告)日：2021-10-26
申请号：US16651424
申请日：2018-09-28
摘要： Apparatus for melting metal material comprising a container for metal material, by way of example, but not limited to, metal scrap, DRI, cast iron, supplied in an electric arc-type melting furnace, and a plurality of electrodes to melt the metal material, which can be inserted in said container.
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公开(公告)号：US20200284512A1
公开(公告)日：2020-09-10
申请号：US16651424
申请日：2018-09-28
摘要： Apparatus for melting metal material comprising a container for metal material, by way of example, but not limited to, metal scrap, DRI, cast iron, supplied in an electric arc-type melting furnace, and a plurality of electrodes to melt the metal material, which can be inserted in said container.
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公开(公告)号：US20220397476A1
公开(公告)日：2022-12-15
申请号：US17755470
申请日：2020-11-05
摘要： The invention concerns a process for detecting water leaks in smelting furnaces (2; 4) or in metal or alloy treatment plants, comprising the following steps: (i) providing at least one smelting furnace (2; 4), or at least one metal or alloy treatment plant provided with a water cooling system (5) and being connected to a process fume exhaust system; (ii) mixing in the cooling water a tracer chemical which is volatile in the event of water leakage together with the exhaust gases and which is suitable to be detected by an analysis system of the exhaust gases; and (iii) detecting said tracer chemical contained in the exhaust gases by said analysis system comprised in said process fume exhaust plant, wherein said tracer chemical is deuterated water. The invention further refers to a Plant for the production of metals or alloys.
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