An agitator for agitating a melt includes a heat-resistive container having a blast opening through which cooling air is blown and an exhaust opening for exhausting air having been subjected to heat exchange, and a rotating magnet assembly composed of a permanent magnet housed in the heat-resistive
An agitator for agitating a melt includes a heat-resistive container having a blast opening through which cooling air is blown and an exhaust opening for exhausting air having been subjected to heat exchange, and a rotating magnet assembly composed of a permanent magnet housed in the heat-resistive container in a rotatable manner, magnetic lines of force emitted from the permanent magnet penetrating through the heat-resistive container to exit outside, and then penetrating the heat-resistive container again to return to the permanent magnet.
대표청구항▼
1. A melting furnace with agitator comprising: a metal furnace for containing a melt, the metal furnace having a metal melting furnace main body and a lateral bypass passage;a side wall of the metal melting furnace main body having a metal melting furnace main body outlet and a metal melting furnace
1. A melting furnace with agitator comprising: a metal furnace for containing a melt, the metal furnace having a metal melting furnace main body and a lateral bypass passage;a side wall of the metal melting furnace main body having a metal melting furnace main body outlet and a metal melting furnace main body inlet; wherein the metal melting furnace main body outlet and the metal melting furnace main body inlet are separated by a predetermined distance, wherein the bypass passage has a substantially U shaped horizontal view, and has a bypass inlet at one end, and a bypass outlet at the other end of the bypass passage,wherein the metal melting furnace main body outlet is in communication with the bypass inlet, and the bypass outlet is in communication with the—metal melting furnace main body inlet;an agitator arranging space formed between an outer side surface of the side wall of the metal melting furnace main body and an inner side surface of the bypass passage, wherein the metal melting furnace main body and the bypass passage are adapted such that a flow dividing and a flow converging may be performed, wherein, in the flow dividing, melt flowing in the metal inciting furnace main body is divided into a first melt and into a second melt, the first melt rotationally flows in the metal melting furnace main body, and the second melt flows into the bypass passage via the metal melting furnace main body outlet and the bypass inlet; andwherein, in the flow converging, the second melt flows into the metal melting furnace main body via the bypass outlet and the metal melting furnace main body inlet;an agitator located in the agitator arranging space, the agitator being opposite to an inner side surface of the bypass passage, and having a casing and a rotating magnet assembly within the casing such that the rotating magnet assembly is rotatable supported by a vertical shaft,the rotating magnet assembly having one or more permanent magnets, wherein magnetic flux from the one or more permanent magnets penetrates the melt in the bypass passage and returns to the one or more permanent magnets, moving the melt in accordance with a rotation of the one or more permanent magnets such that the magnetic flux drives the melt in the bypass passage to flow in the bypass passage, the flow of the melt in the bypass passage flowing into the melt in the metal melting furnace main body to result in flow converging, and causing melt in the metal main body to flow into the bypass passage to flow into the bypass passage, to result in flow dividing, wherein the flow converging and the flow dividing is continuously performed according to the continuous rotation of the magnet assembly. 2. The melting furnace of claim 1, further comprising a second agitator disposed in a space adjacent to an outer side wall of the bypass passage, the agitator and the second agitator are opposite to each other via the bypass passage, wherein the agitator and the second agitator cause the flow of melt in the bypass passage. 3. The melting furnace of claim 1, wherein the rotating magnet assembly includes a plurality of permanent magnets arranged at regular intervals along a circle surrounding the vertical shaft. 4. The melting furnace of claim 2, wherein the rotating magnet assembly includes a plurality of permanent magnets arranged at regular intervals along a circle surrounding the vertical shaft. 5. The melting furnace of claim 3, wherein each of the plurality of permanent magnets has magnetic poles at an outer periphery side and an inner periphery side, and the poles of two adjacent permanent magnets are different from each other at both the outer periphery side and the inner periphery side. 6. The melting furnace of claim 4, wherein each of the plurality of permanent magnets has magnetic poles at an outer periphery side and an inner periphery side, and the poles of two adjacent permanent magnets are different from each other at both the outer periphery side and the inner periphery side. 7. The melting furnace of claim 1, wherein at least one of the one or more permanent magnets has a columnar shape, and is magnetized so that different magnetic poles are alternately arranged around the outer periphery of the vertical shaft. 8. The melting furnace of claim 2, wherein at least one of the one or more permanent magnets has a columnar shape, and is magnetized so that different magnetic poles are alternately arranged around the outer periphery of the vertical shaft.
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