A gas circuit antifreeze device for mining electric shovels

Abstract

This utility model discloses an anti-freezing device for the pneumatic circuit of a mining electric shovel, comprising: a water filtration structure and a water storage structure. The water filtration structure is fitted with a water storage structure on the outside. The water filtration structure includes a water filtration chamber. An air inlet pipe is connected to the bottom right side of the water filtration chamber. A bottom cover is threadedly connected to the bottom end of the water filtration chamber. A water outlet is provided on the right side of the bottom cover. An exhaust pipe is inserted into the middle part of the bottom cover. A filter screen is provided at the top of the exhaust pipe. An exhaust port is connected to the bottom left side of the exhaust pipe. A connecting plate is fixedly connected to the top of the water filtration chamber. The connecting plate is fixedly connected to the water storage structure through four sets of connecting rods. This utility model uses a pipe structure to create a rotational separation effect, separating moisture from the gas. After secondary filtration, the dehydration effect is improved, achieving the purpose of anti-freezing. At the same time, the threaded structure that is easy to disassemble makes maintenance and inspection more convenient, reducing repair time and costs in case of failure.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic circuits for electric mining shovels, specifically an antifreeze device for the pneumatic circuits of electric mining shovels. Background Technology

[0002] The electric shovel is a core heavy-duty piece of equipment in open-pit mining, mainly used for excavating and loading ore and soil. It is a key piece of equipment connecting mining and transportation. The pneumatic system of the electric shovel is an important component of the equipment. After the circuit of the pneumatic system is connected, the motor of the air compressor starts and fills the air tank. The clean compressed air, after treatment, enters the actuator through pipelines and valves, driving the clutch and brake of the electric shovel to perform various predetermined control functions. In cold regions, the pneumatic system of the electric shovel is a core component for controlling the bucket's movement and braking. Its normal operation directly determines mining efficiency and operational safety. Therefore, it needs to be equipped with anti-freezing devices. The focus of anti-freezing work is mainly dehydration, as there is a risk of moisture condensation and freezing. The air humidity at the mining site is high, and the compressed air in the air pipeline carries a large amount of water vapor. When the ambient temperature drops below 0°C, the water vapor easily condenses into ice in key parts such as air pipelines, solenoid valves, and joints, leading to air pipeline blockage or valve jamming.

[0003] Currently, a common type of antifreeze device for the pneumatic circuit of mining electric shovels has the following problems:

[0004] 1. Traditional antifreeze measures, such as manually draining water from the gas lines periodically, do not have a suitable dehydration method, which causes the moisture in the gas to freeze, block the pipes, and prevent normal operation.

[0005] 2. Although some gas circuit antifreeze devices can dry gas and dehydrate it, their structures are mostly quite complex. The gas circuit needs to be disassembled, maintained, and repaired regularly, and is frequently inspected, which greatly increases the equipment maintenance cost and the workload of personnel.

[0006] Therefore, there is an urgent need for a high-efficiency antifreeze device for the air circuit of mining electric shovels that can efficiently remove moisture from the air and has a simple and easy-to-disassemble structure. Utility Model Content

[0007] The purpose of this utility model is to provide an anti-freezing device for the air circuit of a mining electric shovel, solving the problems in the background art. To achieve the above objective, this utility model provides the following technical solution: an anti-freezing device for the air circuit of a mining electric shovel, comprising: a water filtration structure, a water storage structure, and a water storage structure sleeved on the outside of the water filtration structure. The water filtration structure includes a water filtration chamber, an air inlet pipe connected to the bottom right side of the water filtration chamber, a bottom cover threadedly connected to the bottom end of the water filtration chamber, a water outlet on the right side of the bottom cover, an exhaust pipe inserted into the middle part of the bottom cover, a filter screen installed at the top of the exhaust pipe, an exhaust port connected to the bottom left side of the exhaust pipe, and a connecting plate fixedly connected to the top of the water filtration chamber. The connecting plate is fixedly connected to the water storage structure through four sets of connecting rods.

[0008] The water storage structure includes a connecting bucket, with a top cover threaded to the top of the connecting bucket and a water storage bucket threaded to the bottom of the connecting bucket. A drain outlet is provided at the bottom right side of the water storage bucket.

[0009] Preferably, the bottom cover has a pipe hole on the right side that matches the water outlet, and the bottom cover has a pipe hole inside that matches the exhaust pipe. A sealing ring is provided at the connection. The air inlet pipe has a threaded interface on the right side, and the exhaust port has a threaded interface on the left side. A water outlet is provided for easy drainage. The sealing ring ensures airtightness, and the universal threaded interface is more stable and secure.

[0010] Preferably, the bottom right side of the water storage tank has a pipe hole that matches the drain outlet, and the drain outlet has a threaded interface on the right side, which facilitates the periodic discharge of filtered water.

[0011] Preferably, the pipe inside the air intake pipe is connected and fixedly connected to the inside of the water filter chamber. The water filter chamber is shaped like an inverted funnel, wider at the bottom and narrower at the top. The opening of the air intake pipe is located at the right rear end of the exhaust pipe. After the gas enters the water filter chamber from the air intake pipe, it rotates around the exhaust pipe inside the water filter chamber due to the position and structure of the exhaust pipe. The gas rises, and the water carried by the gas flows down the inside of the water filter chamber under gravity, forming a rotational separation effect, which improves the dehydration effect.

[0012] Preferably, the connecting disc is fixedly connected to the inside of the connecting barrel by four sets of connecting rods, the connecting rods being cross-shaped, increasing the number of connecting components and making the structure more stable.

[0013] Preferably, the filter screen is a water filter screen, and the top of the exhaust pipe has a water filter screen with the same structure as the filter screen, which increases the dehydration effect when the gas passes through.

[0014] Preferably, the bottom of the filter chamber is provided with a thread that matches the top of the bottom cover, and a sealing ring is provided at the connection between the filter chamber and the bottom cover. The top of the connecting bucket is provided with a thread that matches the bottom of the top cover, and a sealing ring is provided at the connection between the connecting bucket and the top cover. The bottom of the connecting bucket is provided with a thread that matches the top of the water storage tank, and a sealing ring is provided at the connection between the connecting bucket and the water storage tank. The detachable structure facilitates regular maintenance and cleaning, and the sealing ring increases airtightness.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] By using a pipeline structure to create a rotating separation effect, moisture in the gas is separated out. After secondary filtration, the dehydration effect is improved, thereby achieving the purpose of antifreeze. At the same time, the threaded structure that is easy to disassemble makes maintenance and inspection more convenient and reduces repair time and costs in case of failure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a gas circuit antifreeze device for a mining electric shovel according to the present invention;

[0018] Figure 2 This is a schematic cross-sectional view of the antifreeze device for the pneumatic circuit of a mining electric shovel according to the present invention;

[0019] Figure 3 This is a schematic diagram of the unfolded structure of the water filter structure in the air circuit antifreeze device for mining electric shovels according to this utility model;

[0020] Figure 4 This is a schematic diagram of the unfolded structure of the water storage structure in the air circuit antifreeze device for a mining electric shovel according to the present invention;

[0021] Figure 5 This is a schematic diagram of the unfolded structure of the overall disassembly of the antifreeze device for the pneumatic circuit of a mining electric shovel according to this utility model.

[0022] In the diagram: 1. Filter structure; 11. Filter chamber; 12. Air inlet pipe; 13. Bottom cover; 14. Water outlet; 15. Exhaust pipe; 16. Filter screen; 17. Exhaust port; 18. Connecting plate; 19. Connecting rod; 2. Water storage structure; 21. Connecting bucket; 22. Top cover; 23. Water storage bucket; 24. Drain outlet. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1: Please refer to Figures 1 to 4 This embodiment proposes a gas circuit antifreeze device for mining electric shovels, including a water filter structure 1 and a water storage structure 2. The water filter structure 1 is fitted with the water storage structure 2 on the outside. The water filter structure 1 includes a water filter chamber 11. An air inlet pipe 12 is connected to the bottom right side of the water filter chamber 11. A bottom cover 13 is threaded to the bottom end of the water filter chamber 11. A water outlet 14 is provided on the right side of the bottom cover 13. An exhaust pipe 15 is inserted into the middle part of the bottom cover 13. A filter screen 16 is provided at the top of the exhaust pipe 15. An exhaust port 17 is connected to the bottom left side of the exhaust pipe 15. A connecting plate 18 is fixedly connected to the top of the water filter chamber 11. The connecting plate 18 is fixedly connected to the water storage structure 2 through four sets of connecting rods 19.

[0025] The water storage structure 2 includes a connecting bucket 21, with a top cover 22 threadedly connected to the top of the connecting bucket 21 and a water storage bucket 23 threadedly connected to the bottom of the connecting bucket 21. A drain outlet 24 is provided at the bottom right side of the water storage bucket 23.

[0026] In the above implementation example, the pipe inside the air intake pipe 12 is connected and fixedly connected to the inside of the water filter chamber 11. The water filter chamber 11 is shaped like an inverted funnel with a wider bottom and a narrower top. The hole of the air intake pipe 12 is located at the right rear end of the exhaust pipe 15. The filter screen 16 is a water filter screen. The top of the exhaust pipe 15 has a water filter screen with the same structure as the filter screen 16. After the gas enters the water filter chamber 11 from the air intake pipe 12, it is pushed by the air pressure and affected by the position and structure of the exhaust pipe 15, causing the gas to rotate around the exhaust pipe 15 inside the water filter chamber 11. The gas rises, and the water carried by the gas flows down the inside of the water filter chamber 11 under gravity, forming a rotational separation effect, which makes the dehydration effect better. At the same time, a filter structure is added at the top of the exhaust pipe 15 to further increase the dehydration effect when the gas passes through.

[0027] Implementation 2: Please refer to Figures 3 to 5 Based on the same concept as the above implementation case, this implementation case also proposes that the bottom end of the filter chamber 11 is provided with a thread that matches the top end of the bottom cover 13, and a sealing ring is provided at the connection between the filter chamber 11 and the bottom cover 13; the top end of the connecting barrel 21 is provided with a thread that matches the bottom end of the top cover 22, and a sealing ring is provided at the connection between the connecting barrel 21 and the top cover 22; the bottom end of the connecting barrel 21 is provided with a thread that matches the top end of the water storage barrel 23, and a sealing ring is provided at the connection between the connecting barrel 21 and the water storage barrel 23. The sealing ring increases airtightness and prevents gas leakage. Detachable structures are provided at the bottom end of the filter structure 1 and the upper middle part of the water storage structure 2 to facilitate regular maintenance and cleaning of various positions and reduce maintenance costs.

[0028] Working principle: After the gas enters the filter chamber 11 through the air inlet pipe 12, it is pushed by the air pressure and affected by the position and structure of the exhaust pipe 15, causing the gas to rotate around the exhaust pipe 15 inside the filter chamber 11. The gas rises, and the water carried by the gas flows down the inside of the filter chamber 11 under the influence of gravity, forming a rotational separation effect. The rising gas passes through the filter screen 16 again from the top of the exhaust pipe 15 and enters the interior of the exhaust pipe 15, and is discharged from the exhaust port 17 to continue working. The separated water flows from the inner wall of the filter chamber 11 to the bottom and flows from the outlet 14 into the water storage tank 23 for storage, and finally is discharged from the drain port 24.

[0029] The standard parts used in this embodiment can be purchased directly from the market, while the non-standard structural parts described in the specification and drawings can be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by its equivalents.

Claims

1. A freeze protection device for the air circuit of a mining shovel, characterized by, include: The water filtration structure (1) and the water storage structure (2) are provided. The water filtration structure (1) is fitted with the water storage structure (2) on the outside. The water filtration structure (1) includes a water filtration chamber (11). An air inlet pipe (12) is connected to the bottom right side of the water filtration chamber (11). A bottom cover (13) is threaded to the bottom end of the water filtration chamber (11). A water outlet (14) is provided on the right side of the bottom cover (13). An exhaust pipe (15) is inserted into the middle part of the bottom cover (13). A filter screen (16) is provided at the top of the exhaust pipe (15). An exhaust port (17) is connected to the bottom left side of the exhaust pipe (15). A connecting plate (18) is fixedly connected to the top of the water filtration chamber (11). The connecting plate (18) is fixedly connected to the water storage structure (2) through four sets of connecting rods (19). The water storage structure (2) includes a connecting bucket (21), the top of the connecting bucket (21) is threaded with a top cover (22), the bottom of the connecting bucket (21) is threaded with a water storage bucket (23), and the bottom right side of the water storage bucket (23) is provided with a drain outlet (24).

2. A mine shovel air circuit freeze protection device as set forth in claim 1, characterized by: The bottom cover (13) has a pipe hole on the right side that matches the water outlet (14), and the bottom cover (13) has a pipe hole inside that matches the exhaust pipe (15), and a sealing ring is provided at the connection. The air inlet pipe (12) has a threaded interface on the right side, and the exhaust port (17) has a threaded interface on the left side.

3. The antifreeze device for the pneumatic circuit of a mining electric shovel according to claim 1, characterized in that: The water storage tank (23) has a pipe hole at the bottom right side that matches the drain outlet (24), and a threaded interface is provided on the right side of the drain outlet (24).

4. The antifreeze device for the pneumatic circuit of a mining electric shovel according to claim 1, characterized in that: The pipe inside the air intake pipe (12) is connected to and fixedly connected to the inside of the water filter chamber (11). The water filter chamber (11) is shaped like an inverted funnel with a thicker bottom and a thinner top. The hole of the air intake pipe (12) is located at the right rear end of the exhaust pipe (15).

5. The antifreeze device for the pneumatic circuit of a mining electric shovel according to claim 1, characterized in that: The connecting plate (18) is fixedly connected to the inside of the connecting barrel (21) by four sets of connecting rods (19), and the connecting rods (19) are cross-shaped.

6. The antifreeze device for the pneumatic circuit of a mining electric shovel according to claim 1, characterized in that: The filter screen (16) is a water filter screen, and the top of the exhaust pipe (15) has a water filter screen with the same structure as the filter screen (16).

7. The antifreeze device for the pneumatic circuit of a mining electric shovel according to claim 1, characterized in that: The bottom of the filter chamber (11) is provided with a thread that matches the top of the bottom cover (13), and a sealing ring is provided at the connection between the filter chamber (11) and the bottom cover (13). The top of the connecting barrel (21) is provided with a thread that matches the bottom of the top cover (22), and a sealing ring is provided at the connection between the connecting barrel (21) and the top cover (22). The bottom of the connecting barrel (21) is provided with a thread that matches the top of the water storage barrel (23), and a seal is provided at the connection between the connecting barrel (21) and the water storage barrel (23).

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