Switchable ejector applied to aluminum extraction ladle system

Abstract

The utility model discloses a switchable ejector applied to an aluminum extraction ladle system, which comprises a molten aluminum ladle body, a ladle cover is assembled at the top of the molten aluminum ladle body, one side of the ladle cover is communicated with an aluminum suction pipe, an ejector I is arranged on the upper surface of the ladle cover, and an exhaust port I, an ejection port I and a compressed air inlet I are arranged on the ejector I; a second ejector is further installed on the upper surface of the ladle cover, a second exhaust port, a second ejection port and a second compressed air inlet are formed in the second ejector, the second ejection port is formed in the top of the ladle cover in a communicating mode and located on one side of the first ejection port, and a three-way valve is arranged between the first compressed air inlet and the second compressed air inlet in a communicating mode. The other end of the three-way valve is provided with a compressed air main inlet. The utility model belongs to the technical field of molten aluminum two-man ladle systems, and particularly provides a switchable ejector applied to an aluminum extraction two-man ladle system, which is used for solving the problems in the prior art that the extraction suction force is not enough and the production efficiency is influenced when a fault occurs due to the arrangement of a single group of ejectors.

Description

Technical Field

[0001] The utility model belongs to the technical field of molten aluminum ladle systems, in particular to a switchable ejector used in molten aluminum ladle extraction systems. Background Art

[0002] Molten aluminum transport ladle is an important equipment for transporting molten aluminum. In daily use, molten aluminum and electrolyte need to be pumped out frequently. The ejector on the ladle plays a role in pumping out molten aluminum and electrolyte during startup. Especially when starting electrolyte pumping, rapid extraction and coordination are required. Currently, the use of ejectors has the following disadvantages:

[0003] 1. The electrolyte is viscous and the suction force of the starting pack is insufficient when extracting electrolyte, resulting in slow electrolyte loading and affecting the normal start-up of the electrolyzer.

[0004] 2. When in use, the ejector fails, resulting in the inability to extract electrolyte from the aluminum water ladle, affecting the start-up of the electrolytic cell, causing startup delays and affecting production operations. Utility Model Content

[0005] In view of the above situation, in order to overcome the defects of the existing technology, the utility model provides a switchable ejector for use in the aluminum extraction and lifting system, which is used to solve the problem in the existing technology that a single set of ejectors is set up, resulting in insufficient extraction suction force and affecting production efficiency in the event of a failure.

[0006] The technical solutions adopted in this application are as follows:

[0007] This solution provides a switchable ejector for an aluminum ladle extraction system, comprising an aluminum ladle, with ladle beams mounted on both sides of the aluminum ladle, a ladle cover mounted on the top of the aluminum ladle, an aluminum suction pipe connected to one side of the ladle cover, an ejector mounted on the upper surface of the ladle cover, and an exhaust port, an ejector port, and a compressed air inlet.

[0008] The injection port is connected to the top of the package cover;

[0009] The upper surface of the cover is also equipped with an ejector 2, which is provided with an exhaust port 2, an ejector port 2 and a compressed air inlet 2. The ejector port 2 is connected to the top of the cover and is located on one side of the ejector port 1. A three-way valve is provided between the compressed air inlet 1 and the compressed air inlet 2. The other end of the three-way valve is connected to the equipment that provides compressed air to serve as the main inlet of compressed air.

[0010] As a preferred solution, a solenoid valve is provided between the three-way valve and the compressed air inlet, and a support is provided between the exhaust port and the cover for support and fixation.

[0011] As a preferred solution, a second solenoid valve is provided between the three-way valve and the second compressed air inlet, and a second support member is provided between the second exhaust port and the cover for support and fixation.

[0012] Furthermore, the exhaust port 1 and the inlet of the compressed air inlet 1 are located on the same straight line, and the exhaust port 2 and the inlet of the compressed air inlet 2 are located on the same straight line.

[0013] As a preferred solution, the cover is further provided with an inspection port for maintenance.

[0014] The beneficial effects achieved by the utility model using the above structure are as follows:

[0015] By adding a second ejector on the bag cover based on the original ejector one, it is convenient to switch and has a low cost. It is not opened during normal aluminum discharge. The second ejector is only opened when electrolyte is extracted or the original ejector fails, so as to increase the suction force and the efficiency of electrolyte extraction. It can also effectively prevent the situation where aluminum cannot be discharged due to sudden ejector failure during operation, and facilitates maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a switchable ejector used in an aluminum ladle extraction system provided by this solution;

[0017] Figure 2 This is a schematic diagram of the structure of ejector 1, ejector 2 and three-way valve in this solution;

[0018] Figure 3 This is a schematic diagram of the principles of ejector 1 and ejector 2 in this scheme.

[0019] The meanings of the numbers in the accompanying drawings are as follows:

[0020] 1. Aluminum molten inclusion, 2. Aluminum suction tube, 3. Ejector 1, 4. Ejector 2, 5. Three-way valve, 6. Compressed air main inlet;

[0021] 11. Lift the beam, 12. Cover the cover, 13. Inspection port;

[0022] 31. Exhaust port 1, 32. Injection port 1, 33. Compressed air inlet 1, 34. Solenoid valve 1, 35. Support member 1;

[0023] 41. Exhaust port 2, 42. Injection port 2, 43. Compressed air inlet 2, 44. Solenoid valve 2, 45. Support part 2. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0025] Example 1

[0026] Please refer to Figure 1 As shown, this embodiment provides a switchable ejector for an aluminum extraction ladle system, comprising an aluminum ladle 1, with ladle beams 11 installed on both sides of the aluminum ladle 1, a ladle cover 12 assembled on the top of the aluminum ladle 1, one side of the ladle cover 12 is connected to an aluminum suction tube 2, an ejector 3 is installed on the upper surface of the ladle cover 12, an exhaust port 31, an ejector port 32 and a compressed air inlet 33 are provided on the ejector 3, and the ejector port 32 is connected to the top of the ladle cover 12.

[0027] In order to solve the problem that the viscosity of the electrolyte leads to insufficient suction when extracting the electrolyte, which affects the normal startup of the electrolytic cell, an ejector 2 4 is added to the surface of the cover 12 on the basis of the original ejector 1 3 .

[0028] refer to Figure 1 and Figure 2 As shown, the ejector 2 4 is provided with an exhaust port 2 41, an ejection port 2 42 and a compressed air inlet 2 43, wherein the ejection port 2 42 is connected to the top of the cover 12 and is located on one side of the ejection port 1 32, and a three-way valve 5 is provided between the compressed air inlet 1 33 and the compressed air inlet 2 43, and the other end of the three-way valve 5 is provided with a compressed air main inlet 6, which is connected to the equipment providing compressed air for introducing compressed air.

[0029] When in use, the above structure requires only the normal connection of the second ejector air duct and three-way valve 5, without the need for additional tools. This allows for controlled electrolyte extraction efficiency. During normal aluminum tapping, ejector 2 (4) is not used. During electrolyte extraction, ejector 2 (4) is switched on, increasing extraction force and efficiency. This also addresses the issue of production efficiency being impacted by a malfunction of the original ejector, allowing for the use of ejector 2 (4) even in the event of a malfunction of ejector 1 (3).

[0030] As an example to further illustrate:

[0031] A solenoid valve 1 34 may be provided between the three-way valve 5 and the compressed air inlet 1 33, and a solenoid valve 2 44 may be provided between the three-way valve 5 and the compressed air inlet 2 43, to facilitate the separate switching of the ejector 1 3 and the ejector 2 4. When the ejector 1 3 fails, it is convenient to disassemble, repair and replace the ejector, thereby ensuring the airtightness of the aluminum molten ladle 1.

[0032] As an example to further illustrate:

[0033] A support member 35 is provided between the exhaust port 1 31 and the package cover 12 for support and fixation, and a support member 45 is provided between the exhaust port 2 41 and the package cover 12 for support and fixation, thereby increasing stability in use.

[0034] like Figure 2 As shown, support member 1 35 and support member 2 45 are both composed of a support rod connected to a pipe sleeve structure. The support rod is fixed on the cover 12, and the pipe sleeve is installed on the outside of exhaust port 1 31 and exhaust port 2 41 for easy disassembly.

[0035] As an example to further illustrate:

[0036] Furthermore, the inlet of the exhaust port 1 31 and the compressed air inlet 1 33 are located on the same straight line, and the inlet of the exhaust port 2 41 and the compressed air inlet 2 43 are located on the same straight line.

[0037] As an example to further illustrate:

[0038] The cover 12 is also provided with an inspection port 13 for inspection.

[0039] During normal aluminum tapping, ejector 2 (4) is not opened. It is only opened during electrolyte extraction or when the original ejector 3 fails, increasing the extraction force and efficiency. The newly added switchable ejector 2 (4) not only increases electrolyte extraction efficiency but also effectively prevents unexpected ejector failures during operation, which can lead to aluminum tapping failures. Failures in the original ejector would require repairs and replacements, impacting operation time and efficiency. The newly added switchable ejector 2 (4) can serve as a backup ejector to ensure production operations.

[0040] It should be noted that although the embodiments of the present invention have been shown and described, for ordinary technicians in this field, without departing from the inventive purpose of the present invention, any structural methods and embodiments similar to the technical solution designed without creative design should fall within the scope of protection of the present invention.

Claims

1. A switchable ejector for use in an aluminum ladle extraction system, comprising an aluminum ladle body (1) and an ejector (3), wherein both sides of the aluminum ladle body (1) are provided with an ejector beam (11), the top of the aluminum ladle body (1) is provided with a ladle cover (12), and one side of the ladle cover (12) is connected to an aluminum suction pipe (2), and the invention is characterized in that: The ejector (3) is installed on the upper surface of the package cover (12), and is provided with an exhaust port (31), an ejection port (32) and a compressed air inlet (33). The ejection port (32) is connected to the top of the package cover (12); The upper surface of the package cover (12) is also provided with an ejector 2 (4), and the ejector 2 (4) is provided with an exhaust port 2 (41), an ejection port 2 (42) and a compressed air inlet 2 (43). The ejection port 2 (42) is connected to the top of the package cover (12) and is located on one side of the ejection port 1 (32). A three-way valve (5) is provided between the compressed air inlet 1 (33) and the compressed air inlet 2 (43). The other end of the three-way valve (5) is provided with a compressed air main inlet (6), and the compressed air main inlet (6) is connected to a device that provides compressed air.

2. The switchable ejector for aluminum ladle extraction system according to claim 1, characterized in that: A solenoid valve (34) is provided between the three-way valve (5) and the compressed air inlet (33), and a support member (35) is provided between the exhaust port (31) and the cover (12) for support and fixation.

3. The switchable ejector for aluminum ladle extraction system according to claim 2, characterized in that: A second electromagnetic valve (44) is provided between the three-way valve (5) and the second compressed air inlet (43), and a second support member (45) is provided between the second exhaust port (41) and the cover (12) for supporting and fixing.

4. The switchable ejector for aluminum ladle extraction system according to claim 3, characterized in that: The inlet of the exhaust port 1 (31) and the compressed air inlet 1 (33) are located on the same straight line, and the inlet of the exhaust port 2 (41) and the compressed air inlet 2 (43) are located on the same straight line.

5. The switchable ejector for aluminum ladle extraction system according to claim 1, characterized in that: The bag cover (12) is also provided with an inspection port (13).

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