Method for improving circular flow of single snorkel refining furnace

A single-nozzle refining furnace and flow rate technology is applied in the field of improving the circulating flow of the single-nozzle refining furnace, which can solve the problems of small circulating flow of molten steel, affecting production efficiency and refining quality, and long refining processing time.
CN101302571AInactive Publication Date: 2008-11-12SHANXI TAIGANG STAINLESS STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANXI TAIGANG STAINLESS STEEL CO LTD
Publication Date
2008-11-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method and a device for improving the circulating flow of a single-jet refining furnace. A steel ladle holding molten steel is arranged under a suction nozzle of the single-jet refining furnace; the suction nozzle of the single-jet refining furnace extends to the molten steel; the molten steel flows through a vacuum chamber by the suction nozzle; the device is characterized in that the periphery of the suction nozzle of the single-jet refining furnace is provided with at least one set of traveling wave magnetic field generators; a mounting position of the traveling wave magnetic field generator exceeds the molten steel level; the traveling wave magnetic field generator can produce an electromagnetic force consistent with the circulating direction of the molten steel; and the electromagnetic force and gas together drive the molten steel to circularly flow, thereby increasing the circulating flow of the molten steel. The periphery of the suction nozzle of the single-jet refining furnace is provided with the magnetic field generator; when the molten steel is refined, the magnetic field generator is started so as to generate the electromagnetic force consistent with the flowing direction of the molten steel close to the suction nozzle, thereby increasing the circulating flow of the molten steel and achieving the aims of shortening the refining treatment time and improving the refining treatment efficiency.
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Description

technical field

[0001] The invention specifically relates to a method for increasing the circulating flow rate of a single nozzle refining furnace. Background technique

[0002] RH refers to an integral or split vacuum chamber, and all metallurgical reactions during RH treatment are carried out in the vacuum chamber. There are two dipping pipes with refractory material as the inner and outer lining at the bottom, which are used after high-temperature baking, and the upper part is connected with the hot bend pipe, and then connected with the vacuum system. Various gases pass through the hot elbow, and the gas cooler is pumped out by the vacuum pump system and discharged to the atmosphere.

[0003] When performing vacuum treatment, use a ladle car to send the ladle into the processing position, lower the vacuum chamber or lift the ladle, so that the suction nozzle can be immersed below the molten steel in the ladle. Then start the vacuum pump. Due to the pressure drop in th...

Claims

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