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Medium-frequency induction furnace and blast furnace and medium-frequency induction furnace combined smelting system

An induction furnace and intermediate frequency technology, applied in the field of metallurgy, can solve problems such as easy condensation, hidden safety hazards, bridge blockage, etc., and achieve the effects of improving safety performance, avoiding manual operations, and reducing scrap rate

Inactive Publication Date: 2013-08-14
XIANGTAN HUAXING IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the intermediate frequency induction furnace in the prior art has the following problems: first, manual slagging is required, which not only requires a lot of manpower, but also has a great potential safety hazard due to the high temperature of the working environment; When the molten metal is poured into the mold, it is necessary to manually dump the furnace mouth in a high temperature environment to discharge the molten metal, which also poses a safety hazard; more importantly, the operation cannot be carried out continuously due to the need to dump the furnace mouth from time to time to discharge the molten metal. , which greatly affects the work efficiency
[0005] In addition to the above-mentioned problems, the blast furnace-intermediate frequency induction furnace dual smelting system including the above-mentioned intermediate frequency induction furnace has the above-mentioned problems. Condensation is easy, there may be problems with bridges being blocked

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  • Medium-frequency induction furnace and blast furnace and medium-frequency induction furnace combined smelting system
  • Medium-frequency induction furnace and blast furnace and medium-frequency induction furnace combined smelting system
  • Medium-frequency induction furnace and blast furnace and medium-frequency induction furnace combined smelting system

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Embodiment 1

[0034] A kind of intermediate frequency induction furnace provided in this embodiment, such as figure 1 As shown in , it mainly includes a furnace shell 1 and a furnace 2 sleeved in the furnace shell 1, and an induction coil 3 is wound on the furnace 2; it also includes a furnace bottom plate 21, a fixing frame, a tilting cylinder, a water-cooled cable, and a refractory material. 22. Components such as the yoke and the main circuit copper bar 23; in this embodiment, the induction furnace is in the shape of a cylinder or a square as a whole. Compared with a cylinder, the design of a square shape can save materials; the induction coil 3 is connected to the three-phase inverter Transformation circuit; Since the intermediate frequency induction furnace uses three-phase rectification, it can realize automatic adjustment, and the molten metal in the furnace is heated, kept warm and temperature controlled by induction heating. One of the main improvements of the present invention is ...

Embodiment 2

[0047] The present invention also provides a blast furnace-intermediate frequency induction furnace combined smelting system comprising the intermediate frequency induction furnace described in Embodiment 1.

[0048] Such as Figure 8 A combined blast furnace-intermediate frequency induction furnace smelting system shown in , mainly includes a blast furnace 11 and an intermediate frequency induction furnace connected to the blast furnace 11, and also includes components such as water-cooled cables, capacitor cabinets, and control power supplies; wherein the intermediate frequency induction furnace is an embodiment In the intermediate frequency induction furnace described in one, a slagging mechanism connected to the furnace 2 is provided on the upper part of the intermediate frequency induction furnace shell 1, which is mainly used to discharge the scum on the surface of the molten metal; in the intermediate frequency induction furnace The lower part of the shell 1 is provided...

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Abstract

The invention relates to the field of the metallurgical technology, in particular to a medium-frequency induction furnace and a blast furnace and medium-frequency induction furnace combined smelting system. The medium-frequency induction furnace comprises a furnace shell, a furnace, a slagging mechanism and a liquid outlet mechanism; the furnace is nested in the furnace shell, and an induction coil is wound on the furnace; and the slagging mechanism is arranged on the upper portion of the furnace shell, is communicated with the furnace shell and is used for discharging scum on the surface of molten metal, and the liquid outlet mechanism is arranged on the lower portion of the furnace shell, is communicated with the furnace and is used for draining the molten metal. The medium-frequency induction furnace and the blast furnace and medium-frequency induction furnace combined smelting system have the advantages that manual operation is omitted, and accordingly the safety performance of the medium-frequency induction furnace is greatly improved; and the scum can be timely discharged, and the molten metal can be timely released, so that continuous operation can be implemented, the operation efficiency is greatly improved, and the rejection rate of casting products can be reduced to a great extent.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to an intermediate frequency induction furnace and a blast furnace-intermediate frequency induction furnace combined smelting system. Background technique [0002] The intermediate frequency induction furnace is a kind of smelting equipment that uses an intermediate frequency (frequency between 50Hz and 10000Hz) power supply to establish an intermediate frequency magnetic field to generate eddy currents inside the ferromagnetic material and generate heat, and uses the induction electrothermal effect of the material to heat and melt the material. Now it has Widely used in metal or alloy smelting, melting or heat preservation before die-casting, forging stamping and diathermy treatment before bending pipe forming, such as smelting and purification of non-ferrous metals such as carbon steel, special steel, copper, aluminum, etc. The intermediate frequency induction furnace in the pr...

Claims

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Application Information

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IPC IPC(8): F27B14/06F27B14/08F27D3/15
Inventor 罗显宗王少平王艳
Owner XIANGTAN HUAXING IND & TRADE