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device for faststellande of forekomst of metallic smelta in a genomloppskanal in a metallurgical furnace or a gjutvanna
device for faststellande of forekomst of metallic smelta in a genomloppskanal in a metallurgical furnace or a gjutvanna
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机译:冶金炉或gjutvanna中的基因组金属中的金属熔体的前熔的快速固定装置
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摘要
Into an opening (11) in the bottom part or wall part (2) of a smelting furnace (1) or of a casting ladle, a hollow cylindrical carrier element (7) is inserted which, for example, is releasably connected by means of screws with this bottom or wall part (2). This carrier element (7) surrounds an outlet casing (6) made of refractory material in which a channel of passage (5) for the melt is provided. At places facing each other with regard to the channel of passage (5), recesses (13, 14) are formed in the carrier element (7) in the manner of annular grooves. In each of these recesses (13, 14), there is a coil (17, 19) which is protected from a direct contact with the outlet casing (6) by sections of wall (15, 16) forming the bottom of the recesses (13, 14). One of the coils (17) may be connected with an AC current source for the production of a magnetic field, while the second, opposite coil (19) is connected to an evaluation circuit in which the signals induced in this second coil (19) are evaluated. As a result of the attachment of the coils (17, 19) in a carrier element (7) separated from the wall or bottom part (2), the installation and dismantling of the coils (17, 19) has been simplified. Moreover, the danger of damage to the coils (17, 19) does not exist in the case of a renewal of the outlet casing (6).
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