Adjusting device for controlling flow of molten metal and medium-frequency smelting furnace

Abstract

The utility model relates to the technical field of metal smelting equipment, in particular to an adjusting device for controlling the flow of molten metal and a medium-frequency smelting furnace. The adjusting device comprises a drainage pipe communicated with the lower portion of the smelting furnace, the outlet end of the drainage pipe is communicated with a liquid guide pipe, the communication position of the liquid guide pipe and the drainage pipe is located on the side face of the liquid guide pipe, a plug rod is arranged in the liquid guide pipe in a penetrating mode, and the plug rod is matched with the inner diameter of the liquid guide pipe. Molten liquid in the smelting furnace enters the liquid guide pipe through the drainage pipe and enters the tundish through an outlet of the liquid guide pipe. And the area of the communication part of the drainage tube and the liquid guide tube through which the melt can pass can be adjusted through the plug rod, so that the flow is controlled. Due to the fact that the plug rod can keep the area of the communication position of the drainage pipe and the liquid guide pipe for the molten liquid to pass unchanged in a certain size, the flow can be kept stable in the process that the molten liquid in the smelting furnace is transferred to the tundish.

Description

Technical Field

[0001] The utility model relates to the technical field of metal melting equipment, in particular to a regulating device for controlling the flow rate of molten metal and an intermediate frequency melting furnace. Background Art

[0002] At present, during the process of preparing aluminum alloy spherical powder by existing equipment, the molten metal in the intermediate frequency melting furnace enters the tundish mainly by controlling the lifting of the hydraulic cylinder of the intermediate frequency melting furnace to drive the intermediate frequency melting furnace to tilt, and the intermediate frequency melting furnace tilts to pour out the molten metal into the tundish for atomization. During the process of the molten metal entering the tundish from the intermediate frequency melting furnace, the flow rate of the molten metal is adjusted by adjusting the tilt angle of the intermediate frequency melting furnace.

[0003] There are some problems in the above scheme. First of all, although the flow rate of the molten metal can be adjusted by adjusting the tilt angle of the intermediate frequency melting furnace, when the intermediate frequency melting furnace maintains a certain tilt angle, the flow rate of the molten metal gradually decreases, and it is necessary to continue tilting the intermediate frequency melting furnace to maintain the stability of the flow rate. This makes it difficult to control the flow rate of the molten metal, and it is necessary for the staff to observe in real time and adjust the tilt angle of the intermediate frequency melting furnace in real time. Summary of the Utility Model

[0004] Aiming at the above defects, the technical problem to be solved by the utility model is to provide a regulating device for controlling the flow rate of molten metal and an intermediate frequency melting furnace. The flow rate regulating device can regulate the flow rate of the molten metal during the process of transferring the molten metal from the intermediate frequency furnace to the tundish and can maintain the flow rate stable.

[0005] The above technical purpose of the utility model is achieved by the following technical solutions:

[0006] On the one hand, a regulating device for controlling the flow rate of molten metal is provided, which includes a diversion pipe communicated with the lower part of the melting furnace. The outlet end of the diversion pipe is communicated with a liquid guide pipe. The connection part of the liquid guide pipe and the diversion pipe is located on the side surface of the liquid guide pipe. A plug rod is inserted into the liquid guide pipe, and the plug rod matches the inner diameter of the liquid guide pipe.

[0007] By adopting the above scheme, the molten metal in the melting furnace enters the liquid guide pipe through the diversion pipe and enters the tundish through the outlet of the liquid guide pipe, without tilting the melting furnace to transfer the molten metal. The area through which the molten metal can pass at the connection part of the diversion pipe and the liquid guide pipe can be adjusted by the plug rod, so as to control the flow rate. Since the plug rod can keep the area through which the molten metal passes at the connection part of the diversion pipe and the liquid guide pipe unchanged at a certain size, the flow rate can be kept stable during the process of transferring the molten metal in the melting furnace to the tundish. And because the diversion pipe is communicated with the lower part of the melting furnace, the height at which the molten metal drops into the tundish is reduced, thereby avoiding the splashing of the molten metal and reducing the material loss.

[0008] The present utility model is further configured such that the connection between the drainage pipe and the smelting furnace is located on the side surface of the smelting furnace. Since the connection between the drainage pipe and the smelting furnace is located on the side surface of the smelting furnace, when adding metal raw materials into the smelting furnace, the metal raw materials will not directly impact the connection between the drainage pipe and the smelting furnace, thereby preventing damage to the drainage pipe.

[0009] The present utility model is further configured such that the drainage pipe is horizontally arranged and the liquid guiding pipe is vertically arranged. Since the drainage pipe is horizontally arranged and the liquid guiding pipe is vertically arranged, the outlet of the liquid guiding pipe can correspond to the inlet of the tundish in the vertical direction, facilitating the molten liquid to enter the tundish along the vertical direction.

[0010] The present utility model is further configured such that the drainage pipe and the liquid guiding pipe are integrally formed. The integral formation of the drainage pipe and the liquid guiding pipe results in better integrity and better structural stability.

[0011] The present utility model is further configured such that the drainage pipe, the liquid guiding pipe and the plug rod are all made of graphite material. Since graphite has excellent high-temperature resistance, the drainage pipe, the liquid guiding pipe and the plug rod are not easily damaged in a high-temperature working environment, ensuring the service life.

[0012] The present utility model is further configured to further include a linear drive unit, which is arranged above the liquid guiding pipe, and the output end of the linear drive unit is connected to the plug rod. The linear drive unit can conveniently drive the plug rod to move along its axial direction, thereby facilitating the adjustment of the flow rate.

[0013] The present utility model is further configured such that the linear drive unit is an electric cylinder.

[0014] The present utility model is further configured such that the output end of the linear drive unit is threadedly connected to the upper end of the plug rod. Since the plug rod is threadedly connected to the output end of the linear drive unit, the installation and disassembly between the plug rod and the output end of the linear drive unit can be facilitated.

[0015] On the other hand, the present utility model also provides an intermediate frequency smelting furnace, including the above-mentioned regulating device for controlling the flow rate of the molten metal.

[0016] In summary, the regulating device for controlling the flow rate of the molten metal provided by the present utility model has at least the following beneficial effects:

[0017] 1. During the process of transferring the molten liquid in the smelting furnace to the tundish, there is no need for the staff to observe in real time, and the flow rate can be kept stable.

[0018] 2. During the process of transferring the molten liquid to the tundish, the outlet of the molten liquid is relatively close to the tundish, avoiding the splashing of the molten liquid and reducing the material loss. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative labor, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic structural diagram of the present invention.

[0021] The reference numerals include: melting furnace 1, diversion pipe 2, liquid guide pipe 3, and plug rod 4. Specific embodiments

[0022] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will further elaborate on the present invention in conjunction with the attached Figure 1 drawings and specific embodiments.

[0023] Please refer to Figure 1 , a flow regulating device for controlling the flow of molten metal provided in this embodiment includes a diversion pipe 2 communicating with the lower part of the melting furnace 1. The outlet end of the diversion pipe 2 is connected to a liquid guide pipe 3. The connection between the liquid guide pipe 3 and the diversion pipe 2 is located on the side surface of the liquid guide pipe 3. A plug rod 4 is inserted into the liquid guide pipe 3. The plug rod 4 matches the inner diameter of the liquid guide pipe 3, and the plug rod 4 can move axially along the liquid guide pipe 3. In this embodiment, preferably, the connection between the diversion pipe 2 and the liquid guide pipe 3 is located in the middle section of the liquid guide pipe 3.

[0024] By adopting the above scheme, during use, the molten liquid in the melting furnace 1 enters the liquid guide pipe 3 through the diversion pipe 2 and enters the tundish through the outlet of the liquid guide pipe 3. The area through which the molten liquid can pass at the connection between the diversion pipe 2 and the liquid guide pipe 3 can be adjusted by the plug rod 4, thereby controlling the flow rate. Since the plug rod 4 can keep the area through which the molten liquid passes at the connection between the diversion pipe 2 and the liquid guide pipe 3 unchanged at a certain size, the flow rate can be kept stable during the process of transferring the molten liquid in the melting furnace 1 to the tundish. Moreover, since the diversion pipe 2 communicates with the lower part of the melting furnace 1, the height at which the molten liquid drops into the tundish is reduced, thereby avoiding the splashing of the molten liquid and reducing material loss.

[0025] In order to prevent the metal raw materials from directly impacting the connection between the diversion pipe 2 and the melting furnace 1 when adding metal raw materials into the melting furnace 1, preferably, the connection between the diversion pipe 2 and the melting furnace 1 is located on the side surface of the melting furnace 1.

[0026] In some embodiments, specifically, the diversion pipe 2 is horizontally arranged, the liquid guide pipe 3 is vertically arranged, and the diversion pipe 2 and the liquid guide pipe 3 are perpendicular to each other. The diversion pipe 2 and the liquid guide pipe 3 are integrally formed, and the diversion pipe 2, the liquid guide pipe 3, and the plug rod 4 are all made of graphite material.

[0027] To facilitate adjusting the position of the plug rod 4 to adjust the flow rate, further, a linear drive unit is further included. The linear drive unit is arranged above the liquid guide pipe 3, and the output end of the linear drive unit is connected to the plug rod 4. Preferably, the output end of the linear drive unit is threadedly connected to the upper end of the plug rod 4. In some embodiments, specifically, the output end of the linear drive unit is provided with a threaded hole, and the upper section of the plug rod 4 is threadedly connected in the threaded hole. Among them, the linear drive unit can specifically adopt an electric cylinder in the prior art.

[0028] Based on the same inventive concept, the present utility model further provides an intermediate frequency melting furnace, including the above-mentioned adjusting device for controlling the flow rate of the molten metal.

[0029] It should be noted that the words indicating directions in this article, such as up and down, etc., are all set in the Figure 1 direction for the convenience of description and do not have any other specific meanings.

[0030] It should also be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that an article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such article or device. Without further limitation, the element defined by the statement "including one..." does not exclude the existence of another identical element in the article or device including the above elements.

[0031] Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A regulating device for controlling the flow rate of molten metal, characterized in that: The invention comprises a drainage pipe (2) connected to the lower part of the smelting furnace (1); the outlet end of the drainage pipe (2) is connected to a liquid guide pipe (3); the connection point between the liquid guide pipe (3) and the drainage pipe (2) is located on the side of the liquid guide pipe (3); a plug rod (4) is inserted into the liquid guide pipe (3); the plug rod (4) matches the inner diameter of the liquid guide pipe (3).

2. A regulating device for controlling the flow rate of molten metal as claimed in claim 1, characterized in that: The connection point between the drainage pipe (2) and the smelting furnace (1) is located on the side of the smelting furnace (1).

3. A regulating device for controlling the flow rate of molten metal as claimed in claim 2, characterized in that: The drainage tube (2) is arranged horizontally, and the liquid guiding tube (3) is arranged vertically.

4. A regulating device for controlling the flow rate of molten metal as claimed in claim 3, characterized in that: The drainage tube (2) and the liquid guiding tube (3) are integrally formed.

5. A regulating device for controlling the flow rate of molten metal as claimed in claim 3 or 4, characterized in that: The drainage tube (2), the liquid guiding tube (3) and the plug rod (4) are all made of graphite material.

6. A regulating device for controlling the flow rate of molten metal as claimed in claim 1, characterized in that: It also comprises a linear drive unit, which is arranged above the liquid guiding tube (3), and the output end of the linear drive unit is connected to the plug rod (4).

7. A regulating device for controlling the flow rate of molten metal as claimed in claim 6, characterized in that: The linear drive unit is an electric cylinder.

8. A regulating device for controlling the flow rate of molten metal as claimed in claim 6 or 7, characterized in that: The output end of the linear drive unit is threadedly connected to the upper end of the plug rod (4).

9. A medium frequency melting furnace, characterized in that: It comprises a regulating device for controlling the flow rate of molten metal as described in any one of claims 1 to 8.

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