Mining electric shovel gas circuit device and mining electric shovel with same

Abstract

The utility model provides a mining electric shovel gas circuit device and a mining electric shovel with the mining electric shovel gas circuit device, and the mining electric shovel gas circuit device comprises an air compressor; the first end of the first pipeline is communicated with an air outlet hole of the air compressor; the gas storage tank is communicated with the first pipeline; the second pipeline is communicated with the gas storage tank and the execution mechanism; the pollution discharge structure is arranged on the second pipeline, the pollution discharge structure communicates with the gas storage tank through the inlet, the pollution discharge structure comprises a shell and a gas-liquid separation structure, and the gas-liquid separation structure is arranged in the inner cavity and comprises a first partition plate, a second partition plate and a first separation membrane; the inner cavity is divided into a first sub-cavity and a second sub-cavity by the first partition plate, the first separation membrane and the second partition plate, the first sub-cavity is communicated with the inlet and the drain outlet, and the second sub-cavity is communicated with the outlet. According to the technical scheme, the problem that the service life of the mining electric shovel is affected due to the fact that a pollution discharge structure in the related technology cannot effectively separate water is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mining equipment, in particular to a mining electric shovel gas path device and a mining electric shovel having the same. Background Art

[0002] Electric mining shovels are widely used in mining operations to quickly and efficiently complete mining tasks. Most electric mining shovels are electrically driven, with the motor driving the travel mechanism and bucket arm system, converting electrical energy into mechanical energy to enable ore excavation and loading. The shovel's air system is a crucial component, consisting of an air source, piping, and actuators. This system ensures the proper operation of the bucket arm system.

[0003] The air supply system for mining electric shovels typically uses an air compressor and air tanks. A drainage system is installed to prevent moisture accumulation in the system, which could affect safe equipment operation. This drainage system typically includes a drain port and a drain valve. When a certain amount of moisture accumulates in the system, the drain valve opens, draining the accumulated moisture out of the system through the drain port.

[0004] In related technologies, the gas circuit systems of mining electric shovels all adopt a single-position sewage discharge structure, which has a poor drainage effect and cannot separate the moisture accumulated in the gas circuit system, and thus cannot effectively prevent the influence of moisture on the actuator, resulting in low reliability of the gas circuit system and affecting the service life of the mining electric shovel. Utility Model Content

[0005] The main purpose of the utility model is to provide an air path device for a mining electric shovel and a mining electric shovel having the same, so as to solve the problem in the related art that the sewage discharge structure cannot effectively separate moisture and thus affects the service life of the mining electric shovel.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a mining electric shovel air circuit device is provided, comprising: an air compressor; a first pipeline, a first end of the first pipeline is connected to the air outlet of the air compressor; an air storage tank, an air inlet of the air storage tank is connected to the second end of the first pipeline; a second pipeline, a first end of the second pipeline is connected to the air outlet of the air storage tank, and the second end of the second pipeline is connected to the actuator; a sewage structure is arranged on the second pipeline, the sewage structure has an inlet, an outlet and a sewage outlet, and the sewage structure is connected to the air outlet of the air storage tank through the inlet. The holes are connected, the outlet is connected to the actuator, the sewage discharge structure includes an outer shell and a gas-liquid separation structure, the outer shell has an inner cavity, the gas-liquid separation structure is arranged in the inner cavity and includes a first partition, a second partition and a first separation membrane, the first partition and the second partition are spaced apart and the first partition is located below the second partition, the first separation membrane is arranged between the first partition and the second partition, the first partition, the first separation membrane and the second partition divide the inner cavity into a first sub-cavity and a second sub-cavity, the first sub-cavity is connected to the inlet and the sewage discharge port, and the second sub-cavity is connected to the outlet.

[0007] Furthermore, the mining electric shovel air circuit device also includes a control valve and a timer. The control valve is arranged at the sewage outlet, and the timer is electrically connected to the control valve.

[0008] Furthermore, the first separation membrane is located between the free end of the first partition and the second partition, and the gas-liquid separation structure also includes a second separation membrane, which is arranged between the free end of the second partition and the first partition, and the second separation membrane is located in the second sub-cavity.

[0009] Furthermore, the gas-liquid separation structure also includes a third partition, a fourth partition, a third separation membrane and a fourth separation membrane. The third partition and the second partition are spaced apart, the third partition and the fourth partition are spaced apart, the third separation membrane is arranged between the free end of the third partition and the second partition, and the fourth separation membrane is arranged between the free end of the fourth partition and the third partition.

[0010] Furthermore, the minimum distance between the first partition and the second partition is distance a, the minimum distance between the second partition and the third partition is distance b, and the minimum distance between the third partition and the fourth partition is distance c, wherein distance a, distance b and distance c decrease in sequence.

[0011] Furthermore, the distance a, the distance b, and the distance c are an arithmetic progression.

[0012] Furthermore, the gas-liquid separation structure also includes a fifth partition, a sixth partition, a fifth separation membrane and a sixth separation membrane. The fifth partition and the fourth partition are spaced apart, the fifth partition and the sixth partition are spaced apart, the fifth separation membrane is arranged between the free end of the fifth partition and the fourth partition, and the sixth separation membrane is arranged between the free end of the sixth partition and the fifth partition.

[0013] Furthermore, the gas-liquid separation structure further includes a blocking plate, which is connected to the top wall of the shell and extends toward the bottom wall of the shell, and is located above the sixth partition plate.

[0014] Furthermore, the inlet is located on the side wall of the shell and below the first partition, the outlet is located on the top wall of the shell and above the sixth partition, the outlet is located between the baffle and the side wall of the shell, and the sewage outlet is located on the bottom wall of the shell and below the second partition.

[0015] According to another aspect of the present invention, a mining electric shovel is provided, comprising a mining electric shovel air path device, wherein the mining electric shovel air path device is the above-mentioned mining electric shovel air path device.

[0016] According to the technical solution of the present invention, a first pipeline connects the air compressor and the gas storage tank, a second pipeline connects the actuator and the gas storage tank, and a drainage structure is provided on the second pipeline. The drainage structure has an inlet, an outlet, and a drainage port, and the drainage port is capable of discharging moisture. Specifically, the drainage structure includes a housing and a gas-liquid separation structure, the gas-liquid separation structure being located within the housing and comprising a first partition, a second partition, and a first separation membrane. Through the above arrangement, gas generated by the air compressor enters the gas storage tank and can be stored therein. The gas in the gas storage tank can enter the actuator through the second pipeline. When passing through the second pipeline, the gas can pass through the drainage structure. Specifically, the gas enters the first sub-cavity and passes through the first separation membrane into the second sub-cavity, thereby effectively achieving gas-liquid separation, that is, the moisture is retained in the first sub-cavity. This effectively separates the gas and liquid, thereby ensuring that the gas entering the actuator contains no moisture or a low amount of moisture. Therefore, the technical solution of the present application effectively solves the problem in the related art that the sewage discharge structure cannot effectively separate water, thereby affecting the service life of the mining electric shovel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic structural diagram of an embodiment of an electric mining shovel gas circuit device according to the present utility model is shown;

[0019] Figure 2 Shown Figure 1 A schematic diagram of the three-dimensional structure of the sewage discharge structure of the gas circuit device of the mining electric shovel;

[0020] Figure 3 Shown Figure 2 A perspective diagram of a sewage discharge structure;

[0021] Figure 4 Shown Figure 2 Schematic cross-sectional view of the sewage discharge structure.

[0022] The above drawings include the following reference numerals:

[0023] 1. Actuator; 10. Air compressor; 20. First pipeline; 30. Air storage tank; 40. Second pipeline; 50. Sewage discharge structure; 51. Inlet; 52. Outlet; 53. Sewage discharge outlet; 54. Outer shell; 541. Inner cavity; 5411. First sub-cavity; 5412. Second sub-cavity; 55. Gas-liquid separation structure; 551. First partition; 552. Second partition; 553. First separation membrane; 554. Second separation membrane; 555. Third partition; 556. Fourth partition; 557. Third separation membrane; 558. Fourth separation membrane; 561. Fifth partition; 562. Sixth partition; 563. Fifth separation membrane; 564. Sixth separation membrane; 565. Baffle. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0026] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0027] like Figures 1 to 4 As shown, in this embodiment, the air circuit device of the mining electric shovel includes: an air compressor 10, a first pipeline 20, an air storage tank 30, a second pipeline 40 and a sewage discharge structure 50. The first end of the first pipeline 20 is connected to the air outlet of the air compressor 10. The air inlet of the air storage tank 30 is connected to the second end of the first pipeline 20. The first end of the second pipeline 40 is connected to the air outlet of the air storage tank 30, and the second end of the second pipeline 40 is connected to the actuator 1. The sewage discharge structure 50 is arranged on the second pipeline 40. The sewage discharge structure 50 has an inlet 51, an outlet 52 and a sewage discharge port 53. The sewage discharge structure 50 is connected to the air outlet of the air storage tank 30 through the inlet 51, and the outlet 52 is connected to the actuator 1. The sewage discharge structure 50 includes an outer shell 54 and a gas-liquid separation structure 55. The outer shell 54 has an inner cavity 541. The gas-liquid separation structure 55 is arranged in the inner cavity 541 and includes a first partition 551, a second partition 552 and a first separation membrane 553. The first partition plate 551 and the second partition plate 552 are spaced apart and the first partition plate 551 is located below the second partition plate 552. The first separation membrane 553 is arranged between the first partition plate 551 and the second partition plate 552. The first partition plate 551, the first separation membrane 553 and the second partition plate 552 separate the inner cavity 541 into a first sub-cavity 5411 and a second sub-cavity 5412. The first sub-cavity 5411 is connected to the inlet 51 and the sewage outlet 53, and the second sub-cavity 5412 is connected to the outlet 52.

[0028] Using the technical solution of this embodiment, the first pipeline 20 connects between the air compressor 10 and the gas tank 30, the second pipeline 40 connects between the actuator 1 and the gas tank 30, and a drain structure 50 is provided on the second pipeline 40. The drain structure 50 has an inlet 51, an outlet 52, and a drain port 53, which can drain moisture. Specifically, the drain structure 50 includes a housing 54 and a gas-liquid separation structure 55. The gas-liquid separation structure 55 is located within the housing 54 and includes a first partition 551, a second partition 552, and a first separation membrane 553. Through the above arrangement, the gas generated by the air compressor 10 enters the gas tank 30 and can be stored therein. The gas in the gas tank 30 can enter the actuator 1 through the second pipeline 40. When the gas passes through the second pipeline 40, it can pass through the drain structure 50. Specifically, the gas enters the first sub-cavity 5411 and passes through the first separation membrane 553 into the second sub-cavity 5412, effectively achieving gas-liquid separation. Specifically, the water is retained within the first sub-cavity 5411. This effectively separates the gas and liquid, thereby ensuring that the gas entering the actuator 1 contains no water or very little water. Therefore, the technical solution of this embodiment effectively solves the problem in related arts where the drainage structure cannot effectively separate water, thereby shortening the service life of the mining shovel.

[0029] Specifically, this design effectively prevents moisture and impurities in the compressed air from entering actuator 1, improving the stability and reliability of the equipment and making it suitable for a variety of harsh mining operating environments, such as dusty and humid open-pit mines. After implementation, the equipment failure rate has been significantly reduced, especially under long-term, high-intensity operating conditions. The stability of the air circuit device is particularly outstanding, significantly reducing unplanned downtime and improving the continuity and efficiency of mining operations.

[0030] It should be noted that the first separation membrane 553 is a gas-liquid separation membrane. The surfaces of the first partition plate 551 and the second partition plate 552 are smooth. The actuator 1 includes a hydraulic device, such as a hydraulic reversing valve.

[0031] like Figure 1 As shown, in this embodiment, the mining shovel air circuit system also includes a control valve and a timer. The control valve is located at the sewage outlet 53, and the timer is electrically connected to the control valve. This configuration enables the system to automatically open the control valve to discharge sewage at preset time intervals without manual intervention, greatly improving work efficiency and reducing the workload of maintenance personnel. It is particularly suitable for large-scale mining equipment that operates continuously.

[0032] This setup automatically opens the control valve to drain wastewater at preset intervals, eliminating the need for manual intervention. This significantly improves work efficiency and reduces the workload for maintenance personnel, making it particularly suitable for large-scale, continuously operating mining equipment. In practice, the timer can be flexibly adjusted based on the characteristics of mining operations and environmental conditions. For example, during high-humidity seasons, the drain interval can be shortened to ensure the gas system remains in optimal condition. This automated design not only enhances the intelligence of the equipment but also provides a more reliable air supply for mining operations, reducing the complexity and cost of equipment maintenance.

[0033] like Figure 3 and Figure 4 As shown, in this embodiment, the first separation membrane 553 is located between the free end of the first separator 551 and the second separator 552. The gas-liquid separation structure 55 also includes a second separation membrane 554, which is disposed between the free end of the second separator 552 and the first separator 551 and is located within the second sub-cavity 5412. The addition of the second separation membrane 554 further improves the efficiency of gas-liquid separation, resulting in a purer compressed air suitable for precision operations requiring high air quality, such as hydraulic system control for electric shovels.

[0034] Specifically, the addition of a second separation membrane 554 further improves the efficiency of gas-liquid separation, resulting in purer compressed air suitable for precision operations requiring high air quality, such as hydraulic control of electric shovels. In practical applications, this dual-filtration design effectively addresses the high humidity and dust common in mining environments, ensuring the proper functioning of pneumatic components even under extreme conditions, reducing equipment failures caused by air quality issues, and improving the safety and reliability of mining operations.

[0035] like Figure 3 and Figure 4 As shown, in this embodiment, the gas-liquid separation structure 55 further includes a third separator 555, a fourth separator 556, a third separation membrane 557, and a fourth separation membrane 558. The third separator 555 is spaced apart from the second separator 552, and the third separator 555 is spaced apart from the fourth separator 556. The third separation membrane 557 is disposed between the free end of the third separator 555 and the second separator 552, and the fourth separation membrane 558 is disposed between the free end of the fourth separator 556 and the third separator 555. The introduction of multi-stage separation significantly enhances the purification capacity of the mining shovel's gas circuit device, enabling it to cope with more complex gas source conditions and ensuring normal operation of the equipment in extreme environments.

[0036] Specifically, the introduction of a multi-stage separation structure significantly enhances the purification capabilities of the mining shovel's air circuit system, enabling it to handle more complex air source conditions and ensure normal operation of the equipment in extreme environments, such as mines at high altitudes, with extreme temperature fluctuations, or with high pollution. This design maintains the stability and efficiency of the pneumatic system. After implementation, the mining shovel's air circuit system not only effectively addresses everyday moisture and impurity issues, but also provides more reliable and pure compressed air in special circumstances, such as emergency mine evacuations or equipment maintenance, ensuring that critical operations are not affected.

[0037] like Figure 3 and Figure 4 As shown, in this embodiment, the minimum distance between the first and second separators 551 and 552 is distance a, the minimum distance between the second and third separators 552 and 555 is distance b, and the minimum distance between the third and fourth separators 555 and 556 is distance c. Distances a, b, and c decrease in sequence. This design gradually reduces the flow rate as the airflow passes through the multi-stage separation membranes, facilitating the separation of finer particles and improving the overall separation efficiency. It is suitable for high-precision pneumatic control equipment.

[0038] Specifically, this design gradually reduces the airflow velocity as it passes through the multi-stage separation membranes, facilitating the separation of finer particles and improving overall separation efficiency, making it suitable for high-precision pneumatic control equipment. In practice, this gradually decreasing flow rate effectively captures tiny impurities in the air, such as dust and oil droplets, preventing them from damaging the shovel's precision control components. Especially in continuous operation in mining environments, this design significantly improves the shovel's operating quality and service life, reduces the frequency of maintenance and component replacement, and lowers operating costs.

[0039] like Figure 3 and Figure 4 As shown, in this embodiment, distances a, b, and c are an arithmetic progression. This arithmetic progression allows for a more uniform reduction in flow velocity as the airflow passes through each separation membrane stage, improving the efficiency and stability of gas-liquid separation. This design is suitable for mining equipment requiring a continuous and stable air supply.

[0040] Specifically, the interval design of the arithmetic progression ensures a more uniform reduction in flow velocity as the airflow passes through each stage of the separation membrane, improving the efficiency and stability of gas-liquid separation and making it suitable for mining equipment that requires a continuous and stable air supply. In mining equipment, the stability of the pneumatic system has a significant impact on the overall performance of the equipment. The air path device designed with an arithmetic progression can ensure that the airflow purification process remains consistent under different workloads, avoiding fluctuations in separation efficiency caused by changes in airflow velocity, and providing a more stable and reliable air source for mining equipment. The advantages of this design are particularly evident in operations requiring high-precision control, such as precision excavation or equipment automation.

[0041] like Figure 3 and Figure 4 As shown, in this embodiment, the gas-liquid separation structure 55 further includes a fifth separator 561, a sixth separator 562, a fifth separation membrane 563, and a sixth separation membrane 564. The fifth separator 561 is spaced apart from the fourth separator 556, and the fifth separator 561 is spaced apart from the sixth separator 562. The fifth separation membrane 563 is disposed between the free end of the fifth separator 561 and the fourth separator 556, and the sixth separation membrane 564 is disposed between the free end of the sixth separator 562 and the fifth separator 561. The fifth separation membrane 563 and the sixth separation membrane 564 further enhance the purification capability of the mining shovel's air circuit device, ensuring high-quality compressed air output and suitable for protecting key pneumatic components in mining equipment.

[0042] The above arrangement ensures high-quality compressed air output and is suitable for protecting critical pneumatic components in mining equipment, such as hydraulic drive systems and electronically controlled valves. During the daily operation of a mining shovel, the performance of key pneumatic components directly impacts the shovel's operating efficiency and safety. By adding the fifth and sixth separation membranes 563 and 564, the mining shovel's air circuit assembly can more thoroughly remove particulate matter and moisture from the air, reducing wear and malfunction of pneumatic components, extending the equipment's service life, and lowering maintenance costs, thus ensuring safer and more efficient mining operations.

[0043] like Figure 3 and Figure 4 As shown, in this embodiment, the gas-liquid separation structure 55 further includes a baffle 565, which is connected to the top wall of the housing 54 and extends toward the bottom wall of the housing 54. The baffle 565 is located above the sixth partition 562. The design of the baffle 565 effectively prevents the secondary intrusion of moisture and impurities, ensuring that the compressed air output from the outlet 52 reaches the highest purity. This is suitable for use in mining equipment with extreme air quality requirements, such as the precision control and safety systems of electric shovels.

[0044] Specifically, the design of baffle 565 effectively prevents the secondary intrusion of moisture and impurities, ensuring the highest possible compressed air purity at outlet 52. This design is suitable for use in mining equipment where air quality requirements are extremely high, such as in the precision control and safety systems of electric shovels. In mining operations, the purity of compressed air is directly related to the operational safety and precision of the equipment. Baffle 565 acts as a last line of defense, effectively preventing any potential intrusion of moisture and impurities, ensuring high compressed air quality and providing strong support for the precise operation of the electric shovel. This design is particularly important when handling sensitive materials or performing high-risk tasks.

[0045] like Figure 3 and Figure 4 As shown, in this embodiment, the inlet 51 is located on the side wall of the housing 54 and below the first partition 551, the outlet 52 is located on the top wall of the housing 54 and above the sixth partition 562, and the outlet 52 is located between the blocking plate 565 and the side wall of the housing 54. The sewage outlet 53 is located on the bottom wall of the housing 54 and below the second partition 552. This layout optimizes the airflow path, reduces airflow resistance, improves gas-liquid separation efficiency, and facilitates maintenance and inspection, making it suitable for the daily operation and maintenance of mining equipment.

[0046] It should be noted that this layout optimizes the airflow path, reduces airflow resistance, and improves gas-liquid separation efficiency. It also facilitates maintenance and inspection, making it suitable for the daily operation and maintenance of mining equipment. The optimized airflow path design not only improves gas-liquid separation efficiency but also reduces energy consumption, improving the energy efficiency of the entire system. Furthermore, the strategically located outlets and inlets facilitate inspection and cleaning by maintenance personnel, reducing the time and difficulty of maintenance work and facilitating the long-term, stable operation of mining equipment. Good maintainability is particularly important in the harsh conditions of mining environments.

[0047] According to another aspect of the present application, an electric mining shovel is provided. The electric mining shovel of this embodiment includes an electric mining shovel gas circuit device, which is the above-described electric mining shovel gas circuit device. By adopting the above-described optimized gas circuit device, the electric mining shovel can maintain efficient and stable operation in extreme mining environments, reducing downtime caused by gas circuit system failures and improving the overall efficiency and safety of mining operations.

[0048] Specifically, electric mining shovels are able to maintain efficient and stable operation in extreme mining environments, reducing downtime caused by gas system failures and improving overall efficiency and safety in mining operations. As critical equipment in mining operations, the stability and efficiency of electric shovels directly impact mine production and safety. The optimized gas system design not only improves the shovel's operating efficiency but also reduces equipment failure rates. High performance is particularly critical when handling large quantities of ore and performing high-load operations. Furthermore, this design reduces maintenance costs and unnecessary downtime for the shovel, creating higher economic benefits for mining companies.

[0049] The mining electric shovel air circuit device of this embodiment not only technically achieves efficient purification of compressed air, but also, in practical applications, significantly improves the operating efficiency and safety of the mining electric shovel, reduces failures caused by moisture and impurities in the air circuit, reduces maintenance costs, and has significant economic and social benefits. In addition, the introduction of this device can also reduce the impact of mining equipment on the environment, indirectly reduce carbon emissions from mining operations by reducing equipment failures and downtime, promote the construction of green mines, and comply with the concept of sustainable development. Under the trend of mining automation and intelligence, this high-efficiency, low-maintenance air circuit device will become an important part of the upgrading of mining equipment, and contribute to the technological progress and environmental protection of the mining industry. Under long-term operation and harsh operating conditions, the mining electric shovel air circuit device can ensure the normal operation of mining equipment, reduce dependence on fossil fuels, and reduce the overall energy consumption of mining operations.

[0050] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0051] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0052] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A mining electric shovel air circuit device, characterized in that: include: Air compressor (10); a first pipeline (20), wherein a first end of the first pipeline (20) is connected to an air outlet of the air compressor (10); an air storage tank (30), wherein an air inlet of the air storage tank (30) is in communication with the second end of the first pipeline (20); a second pipeline (40), wherein a first end of the second pipeline (40) is in communication with the gas outlet of the gas storage tank (30), and a second end of the second pipeline (40) is in communication with the actuator (1); A sewage discharge structure (50) is provided on the second pipeline (40), the sewage discharge structure (50) having an inlet (51), an outlet (52) and a sewage discharge port (53), the sewage discharge structure (50) being connected to the gas outlet of the gas storage tank (30) through the inlet (51), and the outlet (52) being connected to the actuator (1), the sewage discharge structure (50) comprising a shell (54) and a gas-liquid separation structure (55), the shell (54) having an inner cavity (541), the gas-liquid separation structure (55) being provided in the inner cavity (541) and comprising a first partition (551), a second partition (552) and a first separation membrane (553), the The first partition (551) and the second partition (552) are spaced apart and the first partition (551) is located below the second partition (552); the first separation membrane (553) is arranged between the first partition (551) and the second partition (552); the first partition (551), the first separation membrane (553) and the second partition (552) separate the inner cavity (541) into a first sub-cavity (5411) and a second sub-cavity (5412); the first sub-cavity (5411) is connected to the inlet (51) and the sewage outlet (53); the second sub-cavity (5412) is connected to the outlet (52).

2. The mining electric shovel air circuit device according to claim 1, characterized in that: The mining electric shovel air circuit device further comprises a control valve and a timer, wherein the control valve is arranged at the sewage outlet (53), and the timer is electrically connected to the control valve.

3. The mining electric shovel air circuit device according to claim 1, characterized in that: The first separation membrane (553) is located between the free end of the first partition (551) and the second partition (552), and the gas-liquid separation structure (55) also includes a second separation membrane (554), which is arranged between the free end of the second partition (552) and the first partition (551), and the second separation membrane (554) is located in the second sub-cavity (5412).

4. The mining electric shovel air circuit device according to claim 3, characterized in that: The gas-liquid separation structure (55) also includes a third partition plate (555), a fourth partition plate (556), a third separation membrane (557) and a fourth separation membrane (558), wherein the third partition plate (555) and the second partition plate (552) are spaced apart, the third partition plate (555) and the fourth partition plate (556) are spaced apart, the third separation membrane (557) is arranged between the free end of the third partition plate (555) and the second partition plate (552), and the fourth separation membrane (558) is arranged between the free end of the fourth partition plate (556) and the third partition plate (555).

5. The mining electric shovel air circuit device according to claim 4, characterized in that: The minimum distance between the first partition (551) and the second partition (552) is distance a, the minimum distance between the second partition (552) and the third partition (555) is distance b, and the minimum distance between the third partition (555) and the fourth partition (556) is distance c, wherein the distance a, the distance b, and the distance c decrease in sequence.

6. The mining electric shovel air circuit device according to claim 5, characterized in that: The distance a, the distance b, and the distance c are an arithmetic progression.

7. The mining electric shovel air circuit device according to claim 4, characterized in that: The gas-liquid separation structure (55) also includes a fifth partition plate (561), a sixth partition plate (562), a fifth separation membrane (563) and a sixth separation membrane (564), wherein the fifth partition plate (561) and the fourth partition plate (556) are spaced apart, the fifth partition plate (561) and the sixth partition plate (562) are spaced apart, the fifth separation membrane (563) is arranged between the free end of the fifth partition plate (561) and the fourth partition plate (556), and the sixth separation membrane (564) is arranged between the free end of the sixth partition plate (562) and the fifth partition plate (561).

8. The mining electric shovel air circuit device according to claim 7, characterized in that: The gas-liquid separation structure (55) further includes a blocking plate (565), wherein the blocking plate (565) is connected to the top wall of the shell (54) and extends toward the bottom wall of the shell (54), and the blocking plate (565) is located above the sixth partition (562).

9. The mining electric shovel air circuit device according to claim 8, characterized in that: The inlet (51) is located on the side wall of the shell (54) and below the first partition (551), the outlet (52) is located on the top wall of the shell (54) and above the sixth partition (562), the outlet (52) is located between the blocking plate (565) and the side wall of the shell (54), and the sewage outlet (53) is located on the bottom wall of the shell (54) and below the second partition (552).

10. A mining electric shovel, comprising a mining electric shovel gas circuit device, characterized in that: The mining electric shovel air path device is the mining electric shovel air path device according to any one of claims 1 to 9.

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