Electromagnetic heating smelting equipment

Abstract

In order to solve the problem of poor stirring degassing effect in the existing smelting equipment, the utility model provides electromagnetic heating smelting equipment, which comprises a smelting furnace adopting electromagnetic induction heating, the device further comprises a distribution box, a degassing device and a standing storage device. Wherein the degassing device is arranged between the smelting furnace and the standing storage device; the smelting furnace is connected with the degassing device through a first channel, and the standing storage device is connected with the degassing device through a second channel; the degassing device adopts ultrasonic vibration for degassing; the distribution box is electrically connected with the smelting furnace and the degassing device. Ultrasonic vibration degassing is adopted, large bubbles in liquid are scattered, the efficiency is high, and the effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal smelting equipment technical field especially relates to a smelting equipment of electromagnetic heating. BACKGROUND

[0002] The smelting furnace is a kind of equipment for melting metal ingot and scrap metal, and adding necessary alloy components, for smelting into required metal or alloy. According to the heating energy classification, the existing smelting can be divided into two categories, one of which is fuel heating type, and the other is through resistance element power heating or using alternating current to generate alternating magnetic field, and the furnace body is heated by induced current;Two kinds of furnace bodies each have its advantages, so they are used in smelting furnace.

[0003] In the process of smelting, the liquid metal generated by melting exists impurities, and part of the impurities will generate gas in high temperature environment, resulting in gas bubble in liquid. In the existing smelting equipment, the gas bubble contained is usually removed by stirring, but the stirring gas bubble removal method has low efficiency and poor effect, and if the stirring amplitude is too large, new gas bubbles may be generated. Therefore, a high-efficiency smelting bubble removal structure is needed. SUMMARY

[0004] The utility model discloses a kind of electromagnetic heating's smelting equipment, to solve the problem of prior art, provide a kind of electromagnetic heating's smelting equipment.

[0005] To solve the above problems, the utility model adopts the following scheme:

[0006] A kind of electromagnetic heating's smelting equipment, including smelting furnace, the smelting furnace adopts electromagnetic induction heating;It further includes distribution box, gas removal device and static storage device;Wherein gas removal device is arranged between smelting furnace and static storage device;Smelting furnace and gas removal device are connected by first channel, and static storage device and gas removal device are connected by second channel;Gas removal device adopts ultrasonic vibration degassing;Distribution box is electrically connected with smelting furnace and gas removal device respectively.

[0007] Further, the gas removal device includes ultrasonic vibrator;Ultrasonic vibrator is arranged at the side and / or bottom of the internal cavity of gas removal device;Ultrasonic vibrator is also electrically connected with the distribution box outside gas removal device.

[0008] Further, the first channel is provided with the first valve body capable of adjusting flow.

[0009] Further, the first valve body and gas removal device are further provided with coarse filter structure.

[0010] Furthermore, a second valve capable of adjusting the flow rate is provided between the degassing device and the static storage device.

[0011] Furthermore, a fine filter structure is provided between the second valve body and the static storage device; the filter pores of the fine filter structure are smaller than those of the coarse filter structure.

[0012] Furthermore, the filter screen in the coarse filtration structure is connected to the first channel by a plug-in connection; the filter screen in the fine filtration structure is connected to the second channel by a plug-in connection; the first channel and the second channel are respectively provided with an "I"-shaped slot or an "I"-shaped slot corresponding to the filter screen.

[0013] Furthermore, a third valve capable of adjusting the flow rate is also provided on the side of the static storage device away from the degassing device.

[0014] Furthermore, the smelting furnace includes a vertically arranged furnace body; a detachably connected furnace cover is provided on the top of the furnace body; a spiral heating wire is provided inside the side wall of the furnace body, and the heating wire is also electrically connected to a distribution box outside the furnace body.

[0015] Furthermore, a pressure sensor and a temperature sensor are also provided at the bottom of the furnace body; the pressure sensor is connected to a pressure gauge outside the furnace body; and the temperature sensor is connected to a temperature gauge outside the furnace body.

[0016] The beneficial effects of this utility model are as follows:

[0017] By setting up a degassing device and using ultrasonic vibration degassing, the device can penetrate the degassing equipment to vibrate and remove air bubbles from the molten metal contained within it, breaking up large air bubbles in the liquid and improving the dendritic porosity problem in the final ingot. This method is highly efficient and effective.

[0018] By setting up coarse and fine filtration structures, oxide inclusions floating in liquid metal are removed, ensuring the effect of vibration degassing in the degassing device, avoiding component segregation and agglomeration, and improving the compositional uniformity of the final copper alloy ingot.

[0019] By connecting the filter and channel via a plug-in method, it is convenient to replace or clean the filter after the valve body is closed. Attached Figure Description

[0020] Fig. 1 This is a schematic diagram of the overall device connection relationship in Example 1;

[0021] Fig. 2 This is a schematic diagram of the fit between the "I"-shaped slot and the filter screen in Example 1;

[0022] Fig. 3This is a schematic diagram of the fit between the "I"-shaped slot and the filter screen in Example 1.

[0023] Explanation of the symbols in the attached diagram: 1. Smelting furnace; 2. Electrical distribution box; 3. Degassing device; 4. Ultrasonic vibrator; 5. Static storage device; 6. First channel; 7. Second channel; 8. First valve body; 9. Coarse filter structure; 10. Second valve body; 11. Fine filter structure; 12. Slot; 13. Third valve body; 14. Pressure sensor; 15. Temperature sensor. Detailed Implementation

[0024] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0025] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the figures only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0026] Example 1:

[0027] like Figs. 1-3As shown, an electromagnetic heating smelting device includes a smelting furnace 1 which uses electromagnetic induction heating; also includes a power distribution box 2, a degassing device 3 and a static storage device 5; wherein the degassing device 3 is arranged between the smelting furnace 1 and the static storage device 5; the smelting furnace 1 and the degassing device 3 are connected through a first channel 6, the static storage device 5 and the degassing device 3 are connected through a second channel 7, and the molten liquid metal is transferred between different devices through the first channel 6 and the second channel 7; it should be noted that in this example, the height of the degassing device 3 is lower than the height of the smelting furnace 1, and the height of the static storage device 5 is lower than the height of the degassing device 3, so that the metal liquid can flow between the devices under the action of gravity; the degassing device 3 uses ultrasonic vibration degassing; the power distribution box 2 is electrically connected with the smelting furnace 1 and the degassing device 3 respectively; wherein the ultrasonic degassing has better effect than the traditional stirring degassing, and the ultrasonic equipment is arranged outside the degassing device 3, without direct contact with the liquid metal, which can also prolong the service life to a certain extent. In this example, the degassing device 3 includes an ultrasonic vibrator 4; the ultrasonic vibrator 4 is arranged on the side and / or bottom of the internal cavity of the degassing device 3; the ultrasonic vibrator 4 is also electrically connected with the power distribution box 2 outside the degassing device 3, and the power distribution box 2 provides the required power for the ultrasonic vibrator 4, and the ultrasonic vibrator 4 transmits vibration to the liquid metal in the internal cavity of the degassing device by emitting ultrasonic vibration frequency, penetrates the side and bottom of the internal cavity of the degassing device 3, controls the liquid metal to vibrate at high frequency, disperses the bubbles, achieves the purpose of eliminating bubbles, and improves the dendritic pore problem in the final ingot.

[0028] The first channel 6 is equipped with a first valve body 8 capable of adjusting the flow rate; a coarse filter structure 9 is also provided between the first valve body 8 and the degassing device 3. A second valve body 10 capable of adjusting the flow rate is provided between the degassing device 3 and the static storage device 5; a fine filter structure 11 is also provided between the second valve body 10 and the static storage device 5; the filter holes of the fine filter structure 11 are smaller than those of the coarse filter structure 9. The coarse filter structure 9 is used to filter out larger high-melting-point impurities in the liquid metal to prevent these impurities from affecting the ultrasonic vibration degassing effect of the degassing device 3. This is because ultrasonic waves have different effects on solids and liquids. When acting on a liquid, they can drive the liquid to produce vibrations of the same frequency and a larger amplitude, while when acting on a solid, they can only produce slight vibrations. Moreover, solids greatly hinder the transmission of ultrasonic waves, weakening the effect of ultrasonic vibration. Therefore, a coarse filter structure 9 is needed to filter out larger impurities in the liquid. It should be noted that, in this example, the portion of the first channel 6 between the first valve body 8 and the melting furnace 1 is a closed pipe, which facilitates flow control by the first valve body 8; similarly, the portion of the second channel 7 between the second valve body 10 and the degassing device is a closed pipe, which facilitates flow control by the second valve body 10; the fine filter structure 11 is set to remove some fine floating oxide inclusions, avoid compositional segregation and agglomeration after metal solidification, and improve the compositional uniformity of the final metal ingot. In this example, it is mainly used to form copper alloy ingots.

[0029] The filter screen in the coarse filtration structure 9 is connected to the first channel 6 via a plug-in connection; the filter screen in the fine filtration structure 11 is connected to the second channel 7 via a plug-in connection. The first channel 6 and the second channel 7 are respectively provided with an "I"-shaped slot 12 or an "I"-shaped slot 12 corresponding to the filter screen. This plug-in connection structure facilitates the removal, installation, and replacement of damaged filter screens after the valve body is closed. It should be noted that the width of the channel used to install the filter structure in the first channel 6 and the second channel 7 is greater than the width of the rest of the channel, in order to reduce the impact of the filter screen on the flow rate.

[0030] The static storage device 5 is also provided with a third valve body 13 on the side away from the degassing device 3, which can adjust the flow rate. This valve body is used to control the liquid metal for casting to flow into the set cooling tank and naturally cool in the tank to form a metal ingot.

[0031] The smelting furnace 1 includes a vertically arranged furnace body; a detachable furnace cover is provided on the top of the furnace body, which is a flip-up connection in this example, and a snap-fit ​​connection is provided on the other side; a spiral heating wire is provided inside the side wall of the furnace body, and the heating wire is also electrically connected to the distribution box 2 outside the furnace body; the heating wire can be made of iron-chromium-aluminum heating alloy or nickel-chromium heating alloy, both of which can heat to temperatures much higher than the melting point of metallic copper in this example, and can be used to melt metallic copper.

[0032] The bottom of the furnace body is further provided with a pressure sensor 14 and a temperature sensor 15; the pressure sensor 14 is connected with a pressure gauge outside the furnace body; the temperature sensor 15 is connected with a temperature gauge outside the furnace body, the approximate amount of the metal liquid in the furnace body can be obtained through the pressure sensor, and the temperature in the smelting furnace 1 can be obtained through the temperature sensor 15.

[0033] In the implementation process, the gas removal device 3 is provided with ultrasonic vibration gas removal, the metal liquid contained in the gas removal device can be vibrated to remove bubbles, large bubbles in the liquid are broken, the problem of dendritic gas holes in the final ingot is improved, the efficiency is high, and the effect is good; the coarse filter structure 9 and the fine filter structure 11 are arranged, the floating oxidized slag in the liquid metal is removed, the vibration gas removal effect of the gas removal device 3 is ensured, the composition segregation and the aggregation phenomenon can be avoided, and the composition uniformity of the final copper alloy ingot is improved; the filter screen and the channel are connected in a plug-in mode, the filter screen can be replaced or cleaned after the valve body is closed.

[0034] The above description is only one specific example of the present application and does not constitute any limitation on the present application. Obviously, for those skilled in the art, after understanding the content and principle of the present application, various modifications and changes in form and details can be made without departing from the principle and structure of the present application, but these modifications and changes based on the idea of the present application are still within the protection scope of the claims of the present application.

Claims

1. An electromagnetic heated smelting apparatus comprising a smelting furnace (1) which is heated by electromagnetic induction; characterised in that, It also includes a distribution box (2), a degassing device (3) and a static storage device (5); wherein the degassing device (3) is arranged between the smelting furnace (1) and the static storage device (5); the smelting furnace (1) and the degassing device (3) are connected through the first channel (6), and the static storage device (5) and the degassing device (3) are connected through the second channel (7); the degassing device (3) adopts ultrasonic vibration degassing; the distribution box (2) is electrically connected with the smelting furnace (1) and the degassing device (3) respectively.

2. An electromagnetic induction heated melting apparatus as claimed in claim 1, wherein The degassing device (3) comprises an ultrasonic vibrator (4); the ultrasonic vibrator (4) is arranged on the side and / or bottom of the internal cavity of the degassing device (3); the ultrasonic vibrator (4) is also electrically connected with the distribution box (2) outside the degassing device (3).

3. An electromagnetic induction heated melting apparatus as claimed in claim 1, wherein, The first channel (6) is provided with a first valve body (8) capable of adjusting flow.

4. An electromagnetic induction heated melting apparatus as claimed in claim 3, wherein The first valve body (8) and the degassing device (3) are further provided with a coarse filter structure (9).

5. An electromagnetic induction heated melting apparatus as claimed in claim 4, wherein The degassing device (3) and the static storage device (5) are provided with a second valve body (10) capable of adjusting flow.

6. An electromagnetic induction heated melting apparatus as claimed in claim 5, wherein The second valve body (10) and the static storage device (5) are further provided with a fine filter structure (11); the filter hole of the fine filter structure (11) is smaller than that of the coarse filter structure (9).

7. An electromagnetic induction heated melting apparatus as claimed in claim 6, wherein The filter screen in the coarse filter structure (9) is connected with the first channel (6) in a plug-in manner; the filter screen in the fine filter structure (11) is connected with the second channel (7) in a plug-in manner; the first channel (6) and the second channel (7) are respectively provided with a "I" shaped slot (12) or a "H" shaped slot (12) corresponding to the filter screen.

8. An electromagnetic induction heated melting apparatus as claimed in claim 4, wherein, The side of the static storage device (5) away from the degassing device (3) is further provided with a third valve body (13) capable of adjusting flow.

9. An electromagnetic induction heated melting apparatus as claimed in claim 1, wherein, The smelting furnace (1) comprises a vertically arranged furnace body; the upper part of the furnace body is provided with a detachably connected furnace cover; the sidewall of the furnace body is provided with a spiral electric heating wire, and the electric heating wire is also electrically connected with the distribution box (2) outside the furnace body.

10. An electromagnetic induction heated melting apparatus as claimed in claim 9, wherein The bottom of the furnace body is further provided with a pressure sensor (14) and a temperature sensor (15); the pressure sensor (14) is connected with a pressure gauge outside the furnace body; the temperature sensor (15) is connected with a temperature gauge outside the furnace body.

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