A dual-frequency electromagnetic field synergistic sealing device and system for hot dip plating

Abstract

The invention belongs to the technical field of hot dipping, and particularly relates to a double-frequency electromagnetic field cooperative flow sealing device and system for hot dipping. The flow sealing device comprises a three-phase traveling wave magnetic field generator and a single-phase alternating magnetic field generator, wherein the three-phase traveling wave magnetic field generator is arranged on the outer side of a flow sealing distribution channel, and the single-phase alternating magnetic field generator is arranged below the three-phase traveling wave magnetic field generatorand below the liquid level of a plating solution at the bottom of the flow sealing distribution channel. And the frequency of the three-phase alternating current introduced into the three-phase traveling wave magnetic field generator is lower than that of the single-phase alternating current introduced into the single-phase alternating magnetic field generator. The flow sealing device can generate traveling wave electromagnetic force based on a traveling wave magnetic field and electromagnetic repulsion based on a single-phase alternating magnetic field, and through the combined action of thetraveling wave electromagnetic force and the electromagnetic repulsion, large electromagnetic force can be provided to counteract the gravity borne by the plating solution, the plating solution can be stabilized, and liquid leakage caused by uneven stress due to flowing deformation of the plating solution under the influence of workpiece movement is avoided.

Description

technical field [0001] The invention belongs to the technical field of hot-dip plating, and more specifically relates to a dual-frequency electromagnetic field cooperative sealing device and system for hot-dip plating. Background technique [0002] Hot-dipped strip steel has been widely used in automotive, manufacturing, construction and other fields. The hot-dip galvanizing equipment is the core equipment in the continuous hot-dip galvanizing process. In the traditional hot-dip galvanizing production process, it is necessary to use a zinc pot with a closed bottom. After the strip steel is introduced into the zinc pot through a conveying device, it is turned by a sinking roller immersed in the zinc solution and drawn out of the zinc pot. There are many disadvantages in this type of zinc pot system, including: the sinking roller and other devices in the zinc pot are easily corroded due to long-term immersion in the zinc liquid, and need to be replaced regularly. The efficie...

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Problems solved by technology

[0005] Aiming at the defects or improvement needs of the prior art, the present invention provides a dual-frequency electromagnetic field cooperative confinement device for hot-dip plating and a hot-dip plating system based on the device, combining the characteristics of the plating solution fluid in the confinement channel of hot-dip plating and According to the current sealing requirements, the electromagnetic field sealing device is redesigned, and a current sealing device including a three-phase traveling wave magnetic field generator and a single-phase alternating magnetic field generator is proposed accordingly. The three-phase traveling wave magnetic field generator The single-phase alternating magnetic field generator and the single-phase alternating magnetic field generator are each arranged at a specific position relative to the flow sealing channel, and the flow sealing device can generate traveling wave electromagnetic force based on the three-phase traveling wave magnetic field and electromagnetic repulsion based on the single-phase alternating magnetic field. Together, they can not only provide a large electromagnetic force to offset the gravity of the plating solution, but also stabilize the plating solution, avoiding the flow deformation of the plating solution due to the influence of the workpiece movement, causing uneven force and causing liquid leakage, thus solving the problem Technical problems such as the inability to balance the gravity of the plating solution and the unstable operation of the hot-dip plating sealing device with technology

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