CN210254128U - Automatic control device for casting liquid level of magnesium alloy production line - Google Patents

Abstract

The utility model provides a magnesium alloy production line casting liquid level automatic control device, this liquid level automatic control device includes: a body assembly and a drive assembly. The crucible body assembly comprises a long crucible, a cover plate, a first partition plate and a second partition plate. The cover plate is covered on the long crucible, and the first partition plate and the second partition plate are contained in the long crucible and are connected with the long crucible. The first partition plate and part of the long crucible enclose a first cavity, the first partition plate, the second partition plate and part of the long crucible enclose a second cavity, and the second partition plate and part of the long crucible enclose a third cavity. The driving assembly comprises a back suction pump, a liquid level sensor, a casting pump and a controller. The back suction pump is contained in the first cavity, the liquid level sensor is contained in the second cavity, and the casting pump is contained in the third cavity. The first communicating opening is formed in the first partition plate, and the second communicating opening is formed in the second partition plate. The automatic liquid level control device realizes automatic regulation and control of the liquid level of the magnesium liquid, has high regulation and control precision and high response speed, and ensures the stable operation of magnesium alloy casting operation.

Description

Automatic control device for casting liquid level of magnesium alloy production line

Technical Field

The utility model relates to a casting liquid level control's technical field especially relates to a magnesium alloy production line casting liquid level automatic control device.

Background

The magnesium alloy is an alloy formed by adding other elements on the basis of magnesium. The method is characterized in that: the aluminum alloy has the advantages of low density, high strength, large elastic modulus, good heat dissipation, good shock absorption, larger impact load bearing capacity than aluminum alloy, and good organic matter and alkali corrosion resistance. Magnesium is the lightest metal among the practical metals, has the specific gravity of about two thirds of that of aluminum and one fourth of that of iron, and has high strength and good rigidity. It is widely used in aviation, aerospace, transportation, chemical industry, rocket and other industrial departments.

In the casting process of magnesium alloy production, a magnesium alloy liquid needs to be transferred from a refining crucible to a long crucible by using a back suction pump. The magnesium alloy liquid can be referred to as magnesium liquid for short, and the magnesium liquid completes standing operation in a long crucible to remove impurities in the magnesium liquid. However, for the present, the liquid level condition of the magnesium liquid in the long crucible is monitored by workers, the labor intensity of manual monitoring is high, the handling and control difficulty of the suck-back pump is high, and the magnesium liquid in the long crucible is easy to overflow, so that safety accidents are caused.

SUMMERY OF THE UTILITY MODEL

Therefore, the casting liquid level automatic control device for the magnesium alloy production line is needed to solve the technical problem that the liquid level of the magnesium liquid is difficult to automatically control.

The utility model provides a magnesium alloy production line casting liquid level automatic control device, this magnesium alloy production line casting liquid level automatic control device includes: a body assembly and a drive assembly. The crucible body assembly comprises a long crucible, a cover plate, a first partition plate and a second partition plate. The cover plate is covered on the long crucible, and the first partition plate and the second partition plate are contained in the long crucible and are connected with the long crucible. The first partition plate and the second partition plate are used for partitioning the long crucible, the first partition plate and part of the long crucible jointly enclose a first cavity, the first partition plate, the second partition plate and part of the long crucible jointly enclose a second cavity, and the second partition plate and part of the long crucible jointly enclose a third cavity. The drive assembly comprises a back suction pump, a liquid level sensor, a casting pump and a controller. The suck-back pump part accept in the first cavity and with the apron is connected, level sensor accept in the second cavity, the casting pump part accept in the third cavity and with the apron is connected, the suck-back pump the level sensor and the casting pump respectively with the controller electricity is connected. The first partition plate is provided with a first communicating port, the second partition plate is provided with a second communicating port, and the first communicating port is arranged on the horizontal plane and higher than the second communicating port.

In one embodiment, the crucible body assembly further comprises a first slag discharge pipe, the long crucible is provided with a first slag discharge port at the bottom of the first chamber, the first slag discharge pipe is communicated with the long crucible through the first slag discharge port, and the long crucible is provided with a first slag discharge valve at the first slag discharge port.

In one embodiment, the long crucible is provided with a first vibrator at the bottom of the first chamber.

In one embodiment, the first partition plate is provided with a first valve at the first communication port.

In one embodiment, the crucible body assembly further comprises a second slag discharge pipe, the long crucible is provided with a second slag discharge port at the bottom of the second chamber, the second slag discharge pipe is communicated with the long crucible through the second slag discharge port, and the long crucible is provided with a second slag discharge valve at the second slag discharge port.

In one embodiment, the long crucible is provided with a second vibrator at the bottom of the second chamber.

In one embodiment, the second partition plate is provided with a second valve at the second communication port.

In one embodiment, the driving assembly further comprises two frequency converters, one frequency converter is electrically connected with the suck-back pump, the other frequency converter is electrically connected with the casting pump, and each frequency converter is electrically connected with the controller.

In one embodiment, the drive assembly further comprises a first level probe partially housed in the first chamber, the first level probe being electrically connected to the controller.

In one embodiment, the driving assembly further comprises a second liquid level probe, the second liquid level probe is partially accommodated in the third chamber, and the second liquid level probe is electrically connected with the controller.

Above-mentioned magnesium alloy production line casting liquid level automatic control device, utilize the magnesium liquid pump in the pump will refine the crucible to first cavity in, most impurity will precipitate in the bottom of first cavity in the magnesium liquid, the higher magnesium liquid of purity will flow into in the second cavity through first intercommunication mouth, the magnesium liquid in the second cavity will get into the third cavity through the second intercommunication mouth, the trace impurity of magnesium liquid will precipitate in the bottom of second cavity in the second cavity, what accept in the third cavity is the higher magnesium liquid of purity, the casting operation will be accomplished to the magnesium liquid that uses in the third cavity to the casting pump. The liquid level sensor detects the liquid level condition of the magnesium liquid in the second chamber in real time and feeds back signals to the controller, and the controller receives the signal feedback from the liquid level sensor to coordinate pumping work of the back suction pump, so that the liquid level of the magnesium liquid in the second chamber is normal. The automatic control device for the casting liquid level of the magnesium alloy production line realizes automatic regulation and control of the liquid level of magnesium alloy, has high regulation and control precision and high response speed, and ensures stable operation of magnesium alloy casting operation.

Drawings

FIG. 1 is a schematic structural view of an automatic casting level control device of a magnesium alloy production line in one embodiment;

FIG. 2 is a partial schematic structural view of an automatic casting level control device of a magnesium alloy production line in one embodiment;

FIG. 3 is another schematic structural diagram of a part of the automatic casting liquid level control device of the magnesium alloy production line in one embodiment.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 and 2, the present invention provides an automatic control device 10 for casting liquid level of magnesium alloy production line, wherein the automatic control device 10 for casting liquid level of magnesium alloy production line comprises: a body assembly 100 and a drive assembly 200. The body assembly 100 includes a long crucible 110, a cover plate 120, a first partition plate 130, and a second partition plate 140. The cover plate 120 covers the long crucible 110, and the first partition plate 130 and the second partition plate 140 are both accommodated in the long crucible 110 and connected to the long crucible 110. The first partition 130 and the second partition 140 are used for partitioning the long crucible 110, the first partition 130 and a part of the long crucible 110 jointly enclose the first chamber 111, the first partition 130, the second partition 140 and a part of the long crucible 110 jointly enclose the second chamber 112, and the second partition 140 and a part of the long crucible 110 jointly enclose the third chamber 113. The drive assembly 200 includes a back-suction pump 210, a level sensor 220, a casting pump 230, and a controller 240. The suck-back pump 210 is partially accommodated in the first chamber 111 and connected to the cover plate 120, the liquid level sensor 220 is accommodated in the second chamber 112, the casting pump 230 is partially accommodated in the third chamber 113 and connected to the cover plate 120, and the suck-back pump 210, the liquid level sensor 220 and the casting pump 230 are electrically connected to the controller 240, respectively. The first partition 130 has a first communication port 131, the second partition 140 has a second communication port 141, and the first communication port 131 is located higher than the second communication port 141 in a horizontal plane.

Above-mentioned magnesium alloy production line casting liquid level automatic control device 10 utilizes the back suction pump 210 to pump the magnesium liquid in the refining crucible to first cavity 111, the overwhelming majority impurity in the magnesium liquid will precipitate in the bottom of first cavity 111, the higher magnesium liquid of purity will flow into in the second cavity 112 through first intercommunication mouth 131, the magnesium liquid in the second cavity 112 will get into third cavity 113 through second intercommunication mouth 141, the trace impurity of magnesium liquid in the second cavity 112 will precipitate in the bottom of second cavity 112, what accomodate in the third cavity 113 is the higher magnesium liquid of purity, casting pump 230 will use the magnesium liquid in the third cavity 113 to accomplish the casting operation. The liquid level sensor 220 detects the liquid level of the magnesium liquid in the second chamber 112 in real time and feeds back a signal to the controller 240, and the controller 240 receives the signal feedback from the liquid level sensor 220 to coordinate the pumping operation of the suck-back pump 210, so as to ensure that the liquid level of the magnesium liquid in the second chamber 112 is normal. The automatic control device 10 for the casting liquid level of the magnesium alloy production line realizes automatic regulation and control of the magnesium liquid level, has high regulation and control precision and high response speed, and ensures stable operation of magnesium alloy casting operation.

The body assembly 100 is used to store magnesium bath and remove impurities from the magnesium bath. Wherein long crucible 110 is used for splendid attire magnesium liquid, and apron 120 is used for sealing long crucible 110 to prevent that other foreign matters from falling into long crucible 110, avoid the staff to fall into long crucible 110, stop unexpected emergence. The first partition 130 and the second partition 140 partition the long crucible 110 such that the long crucible 110 has three chambers, in order, a first chamber 111, a second chamber 112, and a third chamber 113. The magnesium liquid completes the primary standing and precipitating operation in the first chamber 111, the magnesium liquid with higher purity flows into the second chamber 112 through the first communicating port 131, the magnesium liquid completes the secondary standing and precipitating operation in the second chamber 112, the magnesium liquid with higher purity flows into the third chamber 113 through the second communicating port 141, and the magnesium liquid in the third chamber 113 is used for casting operation. The opening position of the first communication port 131 is higher than that of the second communication port 141 on the horizontal plane, so that the first chamber 111 can store a large amount of magnesium liquid, and primary standing and precipitation are facilitated; and the second communication port 141 is at a lower position so as to facilitate the magnesium liquid in the second chamber 112 to flow to the third chamber 113. Therefore, the magnesium liquid with higher purity is obtained after the magnesium liquid is subjected to standing and precipitating operation on two sides, so that the quality of casting operation is improved, and the excellent rate of casting products is guaranteed.

In one embodiment, in order to maintain the temperature of the magnesium solution in the long crucible 110, referring to fig. 2 again, the body assembly 100 further includes a long electric furnace 150, the long crucible 110 is accommodated in the long electric furnace 150, and the cover plate 120 is disposed on the long electric furnace 150. The long electric furnace 150 is a heating furnace for converting electric energy in the furnace into heat to heat a workpiece, and the structure and the working principle of the long electric furnace 150 can refer to the prior art, and are not described herein again. Thus, the cooling and solidification of the magnesium liquid are avoided, the good liquid fluidity of the magnesium liquid is ensured, and the temperature of the magnesium liquid in the long crucible 110 is maintained.

It should be noted that, in the present embodiment, referring to fig. 1 again, the cover plate 120 does not completely seal the long crucible 110, the cover plate 120 is provided with at least three reserved openings 121, one reserved opening 121 is communicated with the first chamber 111, another reserved opening 121 is communicated with the second chamber 112, and another reserved opening 121 is communicated with the third chamber 113. Each of the reserved openings 121 is used to provide a viewing port for a user to visually grasp the conditions of the first chamber 111, the second chamber 112 and the third chamber 113. In addition, the opening of each reserved opening 121 facilitates maintenance work by a maintenance worker who can perform maintenance work on the inside of the long crucible 110 through the reserved opening 121.

During the first standing and precipitating operation, impurities in the magnesium solution will precipitate on the bottom of the first chamber 111 of the long crucible 110. In order to facilitate the user to remove the impurities in the first chamber 111, in one embodiment, referring to fig. 3, the body assembly 100 further includes a first slag discharge pipe 160, the long crucible 110 has a first slag discharge port 111a at the bottom of the first chamber 111, the first slag discharge pipe 160 is communicated with the long crucible 110 through the first slag discharge port 111a, and the long crucible 110 is provided with a first slag discharge valve 161 at the first slag discharge port 111 a. When the magnesium liquid is used up, the long crucible 110 needs to be cleaned and maintained. By utilizing the first slag discharging pipe 160, the cleaning efficiency is greatly improved. The first slag discharge valve 161 is opened, and the user can use the water pump to pour clean water or water containing cleaning agent into the first chamber 111 from the reserved opening 121. The clean water or the water body containing the cleaning agent is discharged from the first slag discharge pipe 160 together with the impurities in the first chamber 111. In this way, the user can clean the impurities in the first chamber 111 conveniently. In order to improve the automation performance of the apparatus, in the embodiment, the first residue discharge valve 161 is an electric valve, and the first residue discharge valve 161 is electrically connected to the controller 240. Thus, the first slag discharge valve 161 is opened or closed by the controller 240, so that the labor intensity of operation is reduced, and the cleaning efficiency is improved.

Further, in order to completely remove the impurities adhered to the wall of the first chamber 111 of the long crucible 110, in the present embodiment, the first vibrator 162 is disposed at the bottom of the first chamber 111 of the long crucible 110. The first vibrator 162 generates mechanical vibration to shake off impurities adhered to the long crucible 110 on the wall of the first chamber 111, and the impurities are mixed into clean water or water containing a cleaning agent and discharged from the first slag discharge pipe 160. Further, in the present embodiment, the first vibrator 162 is electrically connected to the controller 240, and the automation and intelligence performance is improved under the unified and coordinated control of the controller 240. Therefore, impurities adhered to the wall of the first cavity 111 of the long crucible 110 are thoroughly removed, the cleaning force of the impurities in the first cavity 111 is increased, and the quality of cleaning operation is improved.

Further, in order to expand the cleaning range, in one embodiment, the first partition 130 is provided with a first valve 132 at the first communication port 131. In this embodiment, the first valve 132 is an electrically operated valve, and the first valve 132 is electrically connected to the controller 240. After the controller 240 closes the first valve 132, the first chamber 111 is no longer communicated with the second chamber 112, i.e. the liquid in the first chamber 111 does not enter the second chamber 112 through the first communication port 131, so that the water storage capacity of the first chamber 111 is further increased, and the cleaning range of the long crucible 110 in the first chamber 111 is expanded by the clean water or the water containing the cleaning agent, thereby improving the cleaning effect. In addition, the first valve 132 is arranged to serve as a partition, so that convenience is provided for a user to adjust the liquid level of the magnesium liquid and maintain the long crucible 110. Therefore, the cleaning range is enlarged, and the cleaning effect is improved.

During the second standing and precipitating operation, impurities in the magnesium solution will precipitate on the bottom of the second chamber 112 of the long crucible 110. Referring to fig. 3, in an embodiment, the crucible body assembly 100 further includes a second slag discharge pipe 170, the long crucible 110 has a second slag discharge port 112a formed at the bottom of the second chamber 112, the second slag discharge pipe 170 is communicated with the long crucible 110 through the second slag discharge port 112a, and the long crucible 110 is provided with a second slag discharge valve 171 at the second slag discharge port 112 a. When the magnesium liquid is used up, the long crucible 110 needs to be cleaned and maintained. By utilizing the second slag discharging pipe 170, the cleaning efficiency is greatly improved. The second residue discharge valve 171 is opened, and the user can use the water pump to pour the clean water or the water containing the cleaning agent into the second chamber 112 from the reserved opening 121. The clean water or the body of water containing the cleaning agent will be discharged from the second slag discharge pipe 170 together with the impurities in the second chamber 112. In this way, the user is facilitated to clean the impurities in the second chamber 112. In order to improve the automation performance of the apparatus, in the present embodiment, the second slagging valve 171 is an electrically operated valve, and the second slagging valve 171 is electrically connected to the controller 240. Thus, the second residue discharge valve 171 is opened or closed by the controller 240, so that the labor intensity of the operation is reduced, and the cleaning efficiency is improved.

Further, in order to completely remove the impurities adhered to the wall of the second chamber 112 of the long crucible 110, in the present embodiment, the second vibrator 172 is disposed at the bottom of the second chamber 112 of the long crucible 110. The second vibrator 172 generates mechanical vibration to shake off impurities adhered to the long crucible 110 on the wall of the second chamber 112, and the impurities mixed into clean water or a water body containing a cleaning agent are discharged from the second slag discharge pipe 170. Further, in this embodiment, the second vibrator 172 is electrically connected to the controller 240, and the automation and intelligence performance is improved under the unified and coordinated control of the controller 240. Therefore, impurities adhered to the wall of the second chamber 112 of the long crucible 110 are thoroughly removed, the cleaning force for the impurities in the second chamber 112 is increased, and the quality of cleaning operation is improved.

Further, in order to expand the cleaning range, in one embodiment, the second partition 140 is provided with a second valve 142 at the second communication port 141. In this embodiment, the second valve 142 is an electrically operated valve, and the second valve 142 is electrically connected to the controller 240. After the first valve 132 and the second valve 142 are closed by the controller 240, the second chamber 112 is no longer communicated with the first chamber 111 and the third chamber 113, i.e. the liquid in the second chamber 112 does not enter the first chamber 111 through the first communication port 131, and the liquid in the second chamber 112 does not enter the third chamber 113 through the second communication port 141. Therefore, the water storage capacity of the second chamber 112 can be further increased, and the cleaning range of the long crucible 110 in the second chamber 112 by the clean water or the water containing the cleaning agent is enlarged, so that the cleaning effect is improved. In addition, the first valve 132 and the second valve 142 are arranged to be used as partitions, so that convenience is provided for a user to adjust the magnesium liquid level and maintain the long crucible 110. Therefore, the cleaning range is enlarged, and the cleaning effect is improved.

The drive assembly 200 is used to accomplish automatic control of the magnesium liquid level. Wherein the suck-back pump 210 is used for pumping the magnesium liquid in the refining crucible into the first chamber 111. The casting pump 230 is used for taking out the magnesium liquid in the third chamber 113 and completing the casting operation. The level sensor 220 is used to detect the level of the magnesium liquid in the second chamber 112 in real time and feed back the signal to the controller 240. The controller 240 is used for receiving the signal feedback from the liquid level sensor 220 and coordinately controlling the start and stop operations of the suck-back pump 210 and the casting pump 230 so as to ensure that the liquid level of the magnesium liquid in the second chamber 112 is normal. When the magnesium liquid level in the second chamber 112 is lower than the preset value, the controller 240 drives the back-suction pump 210 to start, the back-suction pump 210 pumps the magnesium liquid in the refining crucible to the first chamber 111, and the magnesium liquid in the first chamber 111 enters the second chamber 112 through the first communication port 131. Due to the principle of the communicating vessel, the magnesium liquid level of the second chamber 112 is equal to that of the third chamber 113, and the casting pump 230 takes out the magnesium liquid in the third chamber 113 and finishes the casting operation. When the magnesium liquid level in the second chamber 112 is higher than the predetermined value, the controller 240 controls the back suction pump 210 to stop operating, so as to prevent the magnesium liquid from overflowing.

Referring to fig. 3, in order to reduce power consumption, in one embodiment, the driving assembly 200 further includes two frequency converters 250, one frequency converter 250 is electrically connected to the suck-back pump 210, the other frequency converter 250 is electrically connected to the casting pump 230, and each frequency converter 250 is electrically connected to the controller 240. In this way, the two frequency converters 250 are used for regulation, and the running power of the suck-back pump 210 and the frequency converters 250 is distributed according to the requirement. Thus, energy consumption is reduced, and economic effect is improved.

In order to further enhance the monitoring function of the automatic control device for the casting level of the magnesium alloy production line, in one embodiment, referring to fig. 3, the driving assembly 200 further includes a first level probe 260, the first level probe 260 is partially received in the first chamber 111, and the first level probe 260 is electrically connected to the controller 240. Further, the driving assembly 200 further includes a second liquid level probe 270, the second liquid level probe 270 is partially received in the third chamber 113, and the second liquid level probe 270 is electrically connected to the controller 240. Therefore, the controller 240 learns the liquid level conditions of the first chamber 111 and the second chamber 112 through the first liquid level probe 260 and the second liquid level probe 270, the monitoring range of the controller 240 on the liquid level of the magnesium liquid is further expanded, and the controller 240 can conveniently perform unified coordination control according to a preset program. Therefore, the accident of overflow of the magnesium liquid is avoided, and the monitoring range of the liquid level of the magnesium liquid is enhanced.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The utility model provides a magnesium alloy production line casting liquid level automatic control device which characterized in that includes: a body assembly and a drive assembly;

the crucible body assembly comprises a long crucible, a cover plate, a first partition plate and a second partition plate; the cover plate is covered on the long crucible, and the first partition plate and the second partition plate are accommodated in the long crucible and are connected with the long crucible; the first partition plate and the second partition plate are used for partitioning the long crucible, the first partition plate and part of the long crucible jointly enclose a first chamber, the first partition plate, the second partition plate and part of the long crucible jointly enclose a second chamber, and the second partition plate and part of the long crucible jointly enclose a third chamber;

the driving assembly comprises a back suction pump, a liquid level sensor, a casting pump and a controller; the suck-back pump part is accommodated in the first cavity and connected with the cover plate, the liquid level sensor is accommodated in the second cavity, the casting pump part is accommodated in the third cavity and connected with the cover plate, and the suck-back pump, the liquid level sensor and the casting pump are respectively and electrically connected with the controller;

the first partition plate is provided with a first communicating port, the second partition plate is provided with a second communicating port, and the first communicating port is arranged on the horizontal plane and higher than the second communicating port.

2. The automatic control device for the casting liquid level of the magnesium alloy production line according to claim 1, wherein the crucible body assembly further comprises a first slag discharge pipe, a first slag discharge port is formed in the bottom of the first chamber of the long crucible, the first slag discharge pipe is communicated with the long crucible through the first slag discharge port, and a first slag discharge valve is arranged at the first slag discharge port of the long crucible.

3. The automatic control device for the casting liquid level of the magnesium alloy production line as claimed in claim 2, wherein the long crucible is provided with a first vibrator at the bottom of the first chamber.

4. The automatic control device for the casting liquid level of the magnesium alloy production line as claimed in claim 1, wherein the first partition plate is provided with a first valve at the first communication port.

5. The automatic casting liquid level control device for the magnesium alloy production line according to claim 1, wherein the crucible body assembly further comprises a second deslagging pipe, a second deslagging port is formed in the bottom of the second cavity of the long crucible, the second deslagging pipe is communicated with the long crucible through the second deslagging port, and a second deslagging valve is arranged at the second deslagging port of the long crucible.

6. The automatic control device for the casting liquid level of the magnesium alloy production line as claimed in claim 5, wherein the long crucible is provided with a second vibrator at the bottom of the second chamber.

7. The automatic control device for the casting liquid level of the magnesium alloy production line as claimed in claim 1, wherein the second partition plate is provided with a second valve at the second communication port.

8. The automatic control device for the casting liquid level of the magnesium alloy production line as claimed in claim 1, wherein the driving assembly further comprises two frequency converters, one frequency converter is electrically connected with the suck-back pump, the other frequency converter is electrically connected with the casting pump, and each frequency converter is electrically connected with the controller.

9. The automatic control device for the casting liquid level of the magnesium alloy production line as claimed in claim 1, wherein the driving assembly further comprises a first liquid level probe, the first liquid level probe is partially accommodated in the first chamber, and the first liquid level probe is electrically connected with the controller.

10. The automatic control device for the casting liquid level of the magnesium alloy production line as claimed in claim 1, wherein the driving assembly further comprises a second liquid level probe, the second liquid level probe is partially accommodated in the third chamber, and the second liquid level probe is electrically connected with the controller.

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