Method and device for moving molten metal

A technology of molten metal and electromagnetic poles, which is applied in the direction of circulating melting devices, stirring devices, electromechanical devices, etc., and can solve problems such as the depth of molten metal becoming shallower

CN105263652BInactive Publication Date: 2018-05-29叶夫盖尼·帕夫洛夫
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2018-05-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method and device for moving molten metal are provided, wherein the electromagnetic inductor includes at least two electromagnetic pole pairs, and a first electromagnetic pole is generated between one electromagnetic pole of the first electromagnetic pole pair and the second electromagnetic pole of a different electromagnetic pole pair. A magnetic field component, and a second magnetic field component is generated between two electromagnetic poles of one or more electromagnetic pole pairs, which second magnetic field component thus generates one or more eddy currents within the molten metal. These eddies are generally parallel to the surface of the molten metal and therefore have greater amplitude and extent than eddies perpendicular to the surface. Especially when the depth of the molten metal is small, such eddies provide additional movement to the molten metal, for example for stirring purposes.
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Description

[0001] Related Improvements to Apparatus and Methods technical field

[0002] The present invention relates to improvements related to apparatus for stirring molten metal and / or methods of stirring molten metal. Background technique

[0003] Magnetohydrodynamic methods of stirring molten metal are known. The applicant has pointed out a problem with existing methods of stirring small amounts of molten metal, which problem manifests itself particularly in the shallow depth of the molten metal. Contents of the invention

[0004] A possible object of the present invention is to provide an improved agitation of a limited amount, especially a limited depth, of molten metal. One of the possible objects of the invention is to provide an alternative method for stirring molten metal. One of the possible objects of the invention is to provide an improved device and / or an improved method for stirring molten metal.

[0005] According to a first aspect of the present invention there...

Examples

Embodiment Construction

[0098] Currently, different magnetohydrodynamic (MHD) mixers are widely used in the aluminum industry in alloy preparation to improve temperature homogenization and melting rate. In fact MDH mixers have become a standard in efficient foundry equipment. Traditionally, an MHD mixer for metals in a furnace is a linear induction motor with two-phase or three-phase coils, and can be made according to different structural designs. Figures 1a to 1c An example of a typical coil configuration is shown in . Figure 1a The structure in has overlapping coils; Figure 1b The structure in has coils around the neck wrapping the steel core; and Figure 1c The structure in has a coil wrapped around a salient pole tooth.

[0099] Due to these shapes of the coils, the inductor can have a different number of phases and teeth depending on a two-pole, three-pole or multi-pole design. The inductor can be a salient pole or a non-salient pole asynchronous motor. However, a consistent feature is ...