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Power frequency furnace with W-shaped melting channel and using method thereof

A technology of power frequency furnace and melting groove, which is applied to the field of power frequency furnace with W-shaped melting groove, can solve the problems of low heat transfer efficiency, aging and wear of melting groove refractory materials, etc., so as to shorten melting time, avoid aging, and reduce electricity consumption. consumption effect

Pending Publication Date: 2021-05-25
安徽悦波电气设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a power frequency furnace with a W-shaped melting channel and its use method, which solves the problem that the ordinary groove type power frequency induction furnace adopts a monomer melting channel with equal cross-section, and the heat transfer efficiency is relatively low. Low, the temperature of the molten metal in the melting channel is 100-200°C higher than that in the molten pool. Excessive temperature difference will lead to accelerated aging of the refractory in the melting channel

Method used

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  • Power frequency furnace with W-shaped melting channel and using method thereof
  • Power frequency furnace with W-shaped melting channel and using method thereof
  • Power frequency furnace with W-shaped melting channel and using method thereof

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Embodiment 1

[0047]The industrial frequency furnace with W-shaped melting channel and its application method are the first practical technology successfully developed on the 400kW T2 copper melting furnace in 2003, and used on the 400kW T2 copper melting furnace. The molten copper in the W-shaped melting channel 5 in the melting furnace has an electromagnetic stirring effect, and the electric energy is converted into heat by the resistance of the liquid metal in the W-shaped melting channel 5, and is quickly transferred to the melting furnace chamber 4. Not only can the W-shaped The temperature difference between the melting channel 5 and the melting furnace chamber 4 is reduced to 10-20°C, and the surface heat load of the refractory material of the W-shaped melting channel 5 can also be reduced. Compared with the traditional equal-section single melting channel, the energy saving can reach 20-30%. .

Embodiment 2

[0049] The W-shaped melting channel 5 in the present invention was adopted and applied in the transformation of the 400kW (1.5 tons / hour) brass melting furnace of Jintian Copper Rod Company in 2005. The transformed 400kW brass melting furnace not only simplifies the sensor The production, installation and maintenance of the shell have reduced the power consumption, and the actual life of the melting channel has been significantly extended, and has received good results. The modified 400kW brass melting furnace has been reduced from the original 350kwh / ton to The existing 280kwh / ton has greatly improved the production efficiency of the enterprise and reduced the production cost of the enterprise.

[0050] working principle:

[0051] When in use, the iron core 6 is energized, and the coil 7 generates a magnetically induced current. At this time, the coil 7 is used as a primary coil; due to the characteristic of metal resistance, the melting channel mold 9 is equivalent to a seco...

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Abstract

The invention discloses a power frequency furnace with a W-shaped melting channel and a using method thereof. The power frequency furnace comprises a power frequency furnace body, a furnace body support, a furnace pipe, a melting furnace cavity, the W-shaped melting channel, an iron core, a coil and a water-cooled jacket. A molten melting channel mold is fused with molten copper in the melting furnace cavity, the temperature of the molten copper in the W-shaped melting channel is high, and the temperature of the molten copper in the melting furnace cavity is low. At the moment, the temperature difference between the molten copper in the W-shaped melting channel and the molten copper in the melting furnace cavity is 10-20 DEG C, so that the temperature difference between the molten copper in the W-shaped melting channel and the molten copper in the melting furnace cavity is reduced, the aging of a refractory material in the W-shaped melting channel is avoided, and the service life of the power frequency furnace is effectively prolonged. Under the action of magnetic induction current generated by the coil, the molten copper in the W-shaped melting channel is gradually heated, the density of the molten copper with the high temperature is low, the molten copper is sprayed into the melting furnace cavity from channels on the two sides of the W-shaped melting channel, so that the flowing speed of the molten copper is increased, the circulating speed of the molten copper in the melting furnace cavity is increased, the power consumption is reduced, and the actual service life of the W-shaped melting channel is remarkably prolonged.

Description

technical field [0001] The invention relates to the technical field of power frequency furnaces, in particular to a power frequency furnace with a W-shaped melting channel and a method for using the same. Background technique [0002] In the trench-type industrial frequency induction furnace for casting, all the power required to heat the metal must be provided by the melting channel. Therefore, the melting channel in the induction furnace bears the largest thermal load. [0003] Ordinary grooved power frequency induction furnace adopts single melting channel with equal cross-section, and the heat transfer efficiency is low. The temperature of molten metal in the melting channel is 100-200°C higher than that in the molten pool. It will lead to accelerated aging of the refractory material in the melting channel. Contents of the invention [0004] (1) Solved technical problems [0005] Aiming at the deficiencies of the prior art, the present invention provides a power freq...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B14/06F27B14/08F27B14/14F27B14/18
CPCF27B14/061F27B14/08F27B14/0806F27B14/14F27B2014/0818F27B2014/0837F27M2003/13
Inventor 杜成红肖克俊张学健
Owner 安徽悦波电气设备有限公司
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