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A Submerged Nozzle Electromagnetic Swirl Device

A swirl device and immersion technology, applied in the field of immersion nozzle electromagnetic swirl device, can solve problems such as nozzle blockage, achieve the effects of increasing magnetic field strength, improving inertial force, and avoiding frequent operation

Active Publication Date: 2018-06-29
HUNAN ZHONGKE ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a submerged nozzle electromagnetic swirl device that can effectively avoid problems such as nozzle blockage and nodulation without affecting the existing continuous casting process, and does not need to be repeatedly disassembled.

Method used

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  • A Submerged Nozzle Electromagnetic Swirl Device
  • A Submerged Nozzle Electromagnetic Swirl Device
  • A Submerged Nozzle Electromagnetic Swirl Device

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] Such as Figure 1-4 As shown, in the submerged nozzle electromagnetic swirling device provided by the present invention, several submerged nozzles 3 are installed on the bottom of the tundish 1 along the transverse direction and inserted below the molten steel surface of the crystallizer, and the tube walls of the submerged nozzles 3 The thickness is 10-20mm thicker than that of the pipe wall without electromagnetic stirring device under the same conditions, and the inner diameter is increased by 5-10mm to reach 30-40mm. There are symmetrically installed on both sides of each submerged nozzle 3 along the transverse direction of the tundish 1 Two electromagnetic force generating devices 4 with a distance of 400mm≥K≥230mm, the electromagnetic force generating devices 4 are located on the mold cover plate 15, and the distance betw...

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Abstract

The invention discloses an electromagnetic rotational flow device with submersed nozzles. The submersed nozzles are mounted at the bottom of a tundish at intervals in the transverse direction of the tundish and inserted below the molten steel level of a crystallizer, two electromagnetic force generating devices are symmetrically arranged at the two sides of each submersed nozzle in the transverse direction of the tundish and connected with a tundish car cross beam through fixing assemblies, and transmission devices for enabling the tundish car cross beam to move longitudinally and horizontally are symmetrically arranged on the outer sides of two side beams of a tundish car. On the premise of not influencing an existing continuous casting process, the problems of nozzle blocking, nodulation and the like can be effectively avoided, and the problem that the electromagnetic rotational flow device is frequently mounted and demounted before and after use is solved.

Description

technical field [0001] The invention relates to an electromagnetic swirling device, in particular to an electromagnetic swirling device of an immersed nozzle. Background technique [0002] In the continuous casting process of steel, especially in the continuous casting of special steel containing AI elements, the blockage and nodules of the submerged nozzle are inevitable, which not only affect the internal quality of the continuous casting slab and the casting speed of the continuous casting, but also affect the The straight line of the continuous casting process. The measures taken for this include the structural optimization and transformation of the submerged nozzle. For example, a Japanese company placed rotating blades on the neck of the submerged nozzle to generate swirling flow and avoid blockage and nodules. However, this method costs High, complex process, easy to damage, unfavorable for promotion and use. The rotating force acting on the molten steel inside the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D41/50
CPCB22D41/507
Inventor 马志民张正红何浩曾岳飞肖红
Owner HUNAN ZHONGKE ELECTRIC
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