Capturing device for magnetic impurities in liquid metal

Abstract

A capturing device for magnetic impurities in liquid metal comprises a magnetic field system, a wire net, a crucible, a smelting tank, a sealing system, a fastening connecting rod, a support platform, a motor, a belt and a gas passageway; permanent magnets in the magnetic field system are placed in limit slide blocks on a guide rail and provide a magnetic field through a magnetic yoke; the crucible is arranged in the smelting tank as a liquid metal container; the wire net is vertically arranged in liquid metal through a rotating shaft; the sealing system comprises a sealing flange, the rotating shaft, a copper sleeve and a sealing oil trough; the position of the wire net in the liquid metal can be changed by adjusting the lifting height of the rotating shaft, and the fastening connecting rod is fixed through a fastening screw so as to fix the rotating shaft; the motor drives the rotating shaft through the belt; and the gas passageway is arranged at the upper end of the sealing oil trough and is used for allowing liquid metal protective gas to pass in and out. The capturing device for magnetic impurities can be used for simulating part of working parameters of magnetic traps in liquid metal and capturing magnetic impurities and is a simple and effective device for research on action of magnetic impurities in liquid metal.

Description

technical field [0001] The invention relates to a capture device for magnetic impurities in liquid metal, which belongs to a simple, energy-saving high-gradient magnetic purification device and is suitable for capturing and researching magnetic impurities in liquid metal. Background technique [0002] Using the magnetic differences of various minerals, the method of mineral separation in a non-uniform magnetic field is magnetic separation. At present, magnetic separation is widely used, such as the separation and removal of non-ferrous and rare metals and non-metallic ores, the removal of magnetic components in solid materials, and the removal of impurities in production and domestic sewage. The magnetic separation process is essentially magnetic force and fluid resistance. The process of mechanical forces such as gravity competing with each other, when the mechanical force on the material in the non-uniform magnetic field is less than the magnetic force, the material will b...

AI Technical Summary

Problems solved by technology

The Karlsruhe Institute of Technology in Germany has designed and studied a similar device—a magnetic trap is used in a high-temperature liquid metal circuit. The magnetic trap separation space used is an empty flow channel. The magnetic trap in a liquid metal circuit of the unit Magnetic impurities were captured, but no impurities were found when the magnetic trap in another loop was disassembled several times. One of the possible reasons is that the successful application of oxygen measurement and control technology in this loop makes the impurities including magnetic impurities produced by corrosion negligible. Another possible reason is that there are some improvements to be made in the design of the magnetic trap of this circuit; there is also a magnetic trap device in a liquid metal circuit of Tokyo Institute of Technology in Japan, but the service performance results of this magnetic trap have not been published so far

[0005] In summary, although these magnetic separation devices have been applied in drug delivery and purification of high-temperature liquid metal circuits, there are few related studies, few published literature and patent achievements, and there are some problems that need to be explained by further research Therefore, the development of a device that can simulate some working parameters of the magnetic trap in the high-temperature liquid metal circuit (such as liquid metal flow, impurity accumulation and dispersion behavior, etc.) and capture magnetic impurities in liquid metal has theoretical and engineering advantages. value

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