A ladle nozzle capable of increasing self-opening rate

A technology of self-opening rate and ladle, which is applied in the direction of casting molten material container, metal processing equipment, casting equipment, etc., can solve the problems of affecting the quality of molten steel, not being able to start pouring by itself, and affecting the production rhythm, so as to improve the self-opening rate of molten steel , Stabilize the production rhythm and reduce the effect of molten steel quality

CN103231047BActive Publication Date: 2016-04-20MAGANG (GROUP) HOLDING CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2016-04-20

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Abstract

The invention discloses a ladle nozzle applied to the steel casting technology and particularly relates to a ladle nozzle capable of improving the automatic casting rate. A variable-diameter stuffing sand flowing channel is arranged at an upper water inlet. The upper water inlet is composed of an upper portion and a lower portion, and the inner diameter of the upper portion of the upper water inlet is larger than that of the lower portion of the upper water inlet. By means of the ladle nozzle, upper arch drainage sand piles are not produced, flowing of stuffing sand is facilitated, and the automatic casting rate is improved, the defect of manual oxygen burning casting in the prior art is overcome, the molten steel automatic casting rate is improved, the production rhythm is stabilized, effects of oxygen burning on the quality of molten steel are reduced, residual slag of steel ladles is reduced, and the like.
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Description

Technical field:

[0001] The invention belongs to the technical field of pouring equipment manufacturing in the metallurgical industry, and in particular relates to a ladle nozzle used in the iron and steel casting process. Background technique:

[0002] At present, in the field of casting equipment manufacturing technology in the metallurgical industry, especially in the continuous casting production process of steel, qualified molten steel is transferred to the ladle turret. When casting molten steel, the molten steel first enters the tundish from the ladle, and then The tundish enters the crystallizer, and finally casts into the required billet. When the molten steel is poured into the tundish from the ladle, it is necessary to use the ladle nozzle device. At present, the sliding nozzle device is mostly used, which is generally composed of an upper nozzle, an upper slide plate, a lower plate, and a lower nozzle. shaped cylindrical tubes, such as figure 1 shown. The disa...

Examples

Embodiment Construction

[0020] Such as figure 2 As shown, the technical solution provided by the present invention is a ladle nozzle used in the steel casting process, and the nozzle 2 is provided with a drainage sand circulation channel with a variable diameter. The upper nozzle 2 is composed of an upper part and a lower part, and the inner diameter of the upper part of the upper nozzle is larger than the inner diameter of the lower part of the upper nozzle. The upper nozzle 2 is provided with a drainage sand transition section 6, the transition section 6 is arranged on the upper part of the upper nozzle 2, and the diameter of the transition section 6 is larger than the inner diameter of the lower part of the upper nozzle. The upper nozzle 2 is a variable diameter structure with a thick top and a thin bottom, and the cross-sectional shape of the transition section 6 is circular. The upper nozzle 2 is a variable diameter structure with a thicker top and a thinner bottom, and the cross-sectional sha...