Coal mine underground emulsion pump station filtering equipment

Abstract

The utility model provides a kind of coal mine underground emulsion pump station filtering equipment, belong to filtering equipment technical field, including mounting bracket, mounting assembly is equipped on mounting bracket, and filter casing is installed on mounting assembly;Filtering cavity and filter pond are equipped in filter casing, and filtering cavity is located in filter casing close to water inlet side one side;Baffle is equipped in filtering cavity, and two groups of through slots are opened in filtering cavity water inlet end and water outlet end;Two groups of electric valves are equipped in filtering cavity water inlet end, two groups of electric valves are respectively embedded in two groups of through slots of filtering cavity water inlet end;The structure of the device is set in filter casing filtering cavity and filter pond, filtering cavity is located in water inlet end and is equipped with baffle, two groups of through slots and two groups of electric valves, water inlet can be distributed into filtering cavity according to two independent flow paths, two groups of electric valves are respectively embedded in corresponding through slot, switching or closing is carried out to incoming liquid flow, avoid single path concentrated flushing same area to cause local blockage.

Description

Technical Field

[0001] This utility model belongs to the field of filtration equipment technology, and more specifically, it relates to a filtration device for an underground emulsion pump station in a coal mine. Background Technology

[0002] During the operation of underground emulsion pump stations in coal mines, it is often necessary to filter the circulating emulsion to remove particulate impurities and contaminants, ensuring the cleanliness of the emulsion and thus maintaining the stability of hydraulic systems, spray systems, and other fluid-using components. For example, when using emulsion to power high-pressure pipelines and hydraulic supports at the working face, solid impurities in the emulsion can easily cause pipeline wear, valve jamming, and nozzle blockage. In this case, emulsion filtration equipment is needed to perform graded filtration and impurity interception on the underground return emulsion, thereby improving cleanliness and reducing system failures.

[0003] However, traditional emulsion filtration equipment often lacks a controllable multi-channel inlet structure, resulting in the water inlet only entering the filter chamber through a single path during the filtration process. The flow rate is not divisible, and impurities concentrate on flushing the same filter section, which can easily cause local blockage and rapid saturation of the filter material. This not only increases the resistance to liquid supply and hinders the return of liquid, affecting the stable liquid supply of the pump station, but also increases the frequency of on-site cleaning and the pressure of operation and maintenance, which is detrimental to the stability of continuous downhole operations. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a coal mine underground emulsion pump station filtration device. This device solves the technical problem that traditional emulsion filtration devices in the prior art lack a controllable multi-channel liquid inlet structure, and the water can only enter the filtration chamber through a single path, leading to local blockage and unstable liquid supply.

[0005] The purpose and effectiveness of this utility model's filtration equipment for underground emulsion pump stations in coal mines are achieved through the following specific technical means: A filtration device for an underground emulsion pump station in a coal mine includes a mounting frame with a mounting assembly on the frame. A filter housing is mounted on the mounting assembly. The filter housing contains a filter chamber and a filter pool. The filter chamber is located on the side of the filter housing near the water inlet. A partition is provided inside the filter chamber. Two sets of through grooves are provided at both the water inlet and outlet ends of the filter chamber. Two sets of electric valves are provided at the water inlet end of the filter chamber, and the two sets of electric valves are respectively embedded in the two sets of through grooves at the water inlet end of the filter chamber.

[0006] According to a preferred embodiment, the filter pool is located on the side of the filter housing near the water outlet, and the water inlet of the filter pool is connected to the water outlet of the filter chamber, and the water outlet of the filter pool is connected to the water outlet of the filter housing.

[0007] According to a preferred embodiment, the mounting assembly includes two sets of support frames, brackets, and chucks. The two sets of support frames are respectively mounted on both sides of the mounting frame, and the brackets are located on the support frames.

[0008] According to a preferred embodiment, the chuck is located on the bracket, and the filter housing is engaged between the chucks.

[0009] According to a preferred embodiment, an absorbent cotton is provided inside the filter housing near the water inlet end, one end of the absorbent cotton is flush with the filter housing, and the other end of the absorbent cotton is connected to the filter chamber.

[0010] According to a preferred embodiment, both the filter chamber and the filter pool are fitted with fixing plates on their outer sides, and the filter chamber and the filter pool are connected to the filter housing through the fixing plates.

[0011] According to a preferred embodiment, the water inlet end of the filter housing is provided with a boss, and a quick-release dust cover is provided inside the boss.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model features a graded structure of a filter chamber and a filter pool within the filter housing. The filter chamber is located at the inlet end and is equipped with a baffle, two sets of through grooves, and two sets of electric valves. Water can enter the filter chamber through two independent flow paths. The two sets of electric valves are respectively embedded in the corresponding through grooves, which can switch, limit, or close the incoming liquid flow, avoiding local blockage caused by concentrated flushing of the same area through a single path. The outlet end of the filter chamber is then connected to the filter pool near the outlet end, achieving step-by-step filtration, reducing the probability of impurities being carried into the downstream pipeline, and improving cleanliness and the reliability of emulsion circulation.

[0013] 2. During use, the filter housing is clamped onto the bracket by a chuck. The bracket is supported by two sets of support frames, allowing for quick assembly and disassembly of the entire filter housing on the mounting frame. This facilitates maintenance, replacement, or cleaning in confined underground spaces. Adsorbent cotton is installed on the water inlet side of the filter chamber. One end of the cotton is flush with the housing, and the other end connects to the filter chamber. This allows for the initial trapping of large particulate contaminants, protecting subsequent filtration sections and extending their service life. Fixing plates are installed on the outside of both the filter chamber and the filter pool, connecting to the filter housing to ensure stable internal components. A quick-release dust cover is installed on the protrusion at the water inlet end, which can be used to seal the water inlet during shutdown or transport, preventing backflow of coal dust and other impurities, thus improving the reliability and safety of on-site use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the assembled structure of this utility model; Figure 2This is a structural schematic diagram of the filter housing and mounting components of this utility model; Figure 3 This is an exploded view of the filter housing of this utility model; Figure 4 yes Figure 3 Enlarged view of region A in the middle; Figure 5 yes Figure 3 A magnified view of region B in the middle.

[0015] In the diagram, the correspondence between component names and drawing numbers is as follows: 11. Mounting bracket; 12. Support bracket; 13. Bracket; 14. Chuck; 15. Filter housing; 16. Filter chamber; 17. Filter pool; 18. Partition plate; 19. Through groove; 21. Electric valve; 22. Absorbent cotton; 23. Fixing plate; 24. Boss; 25. Quick-release dust cover. Detailed Implementation

[0016] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model. Example

[0017] like Figures 1 to 5 As shown, this utility model provides a filtration device for an underground emulsion pump station in a coal mine, including a mounting frame 11, an mounting assembly on the mounting frame 11, and a filter housing 15 mounted on the mounting assembly; the filter housing 15 has a filter chamber 16 and a filter pool 17 inside, the filter chamber 16 is located on the side of the filter housing 15 near the water inlet end; the filter chamber 16 has a partition 18 inside, and two sets of through grooves 19 are opened at both the water inlet end and the water outlet end of the filter chamber 16; the water inlet end of the filter chamber 16 is provided with two sets of electric valves 21, and the two sets of electric valves 21 are respectively embedded in the two sets of through grooves 19 at the water inlet end of the filter chamber 16.

[0018] Specifically, the mounting frame 11 is an integral support frame used to place and fix the entire filter structure, ensuring the filter housing 15 maintains a relatively stable position during use. The mounting components are installed on the mounting frame 11 and serve as the load-bearing mechanism for the filter housing 15. The filter housing 15 acts as an outer shell, accommodating the filter chamber 16 and the filter pool 17. The filter chamber 16 is located on the inlet side of the filter housing 15, primarily responsible for guiding, initially intercepting, and diverting the incoming water. The filter pool 17 is located near the outlet end, serving as a further purification unit. A baffle 18 is installed inside the filter chamber 16, dividing the flow channels within the chamber to create an orderly flow area within the chamber, preventing the incoming water from directly rushing from the inlet to the outlet and bypassing the filtration area. Two sets of through channels 19 are respectively opened at the inlet and outlet ends of the filter chamber 16. These through channels 19 serve as passageways for the water flow, providing paired channels for the water path. Two sets of electric valves 21 are installed at the water inlet end of the filter chamber 16. The two sets of electric valves 21 are respectively embedded in the corresponding through grooves 19. When the valves are open, water is allowed to enter the filter chamber 16 through their respective through grooves 19. When the valves are closed, they can cut off or divert water inflow from one or both sides. This arrangement allows the same housing to switch between different water inflow paths under different operating conditions, such as single-path water inflow, dual-path water inflow, or intermittent water inflow, which is convenient for switching according to water quality and maintenance schedule.

[0019] It should be noted that the electric valve 21 can be a D971X-16Q model electric soft-seal ball valve to realize the water inlet control function embedded in the water inlet groove 19 of the filter chamber 16.

[0020] The filter tank 17 is located on the side of the filter housing 15 near the water outlet end, and the water inlet end of the filter tank 17 is connected to the water outlet end of the filter chamber 16, and the water outlet end of the filter tank 17 is connected to the water outlet end of the filter housing 15.

[0021] Specifically, the filter tank 17 is located in the rear section of the filter housing 15, i.e., on the side facing the water outlet. Water from the filter chamber 16, after being separated and guided by the baffle 18, enters the inlet of the filter tank 17. The filter tank 17 serves as a receiving and secondary treatment unit. The water flow typically has a retention period within the filter tank 17, allowing suspended impurities to gradually settle and ensuring sufficient contact between the subsequent adsorption material and the water. The outlet of the filter tank 17 is connected to the outlet of the filter housing 15, from which the treated water is discharged or directed to subsequent stages. This front-to-back arrangement allows the filter chamber 16 to perform the first stage of diversion, interception, and preliminary purification, while the filter tank 17 undertakes subsequent refinement treatment and stabilization of the effluent, forming a two-stage chamber structure where water flows sequentially.

[0022] The mounting assembly includes two sets of support frames 12, a bracket 13, and a chuck 14. The two sets of support frames 12 are respectively mounted on both sides of the mounting frame 11, and the bracket 13 is located on the support frame 12.

[0023] Specifically, two sets of support frames 12 are installed on the left and right sides of the mounting frame 11, forming a pair of parallel support parts. The support frames 12 can be made of angle steel or bent sheet metal, serving to bear weight and limit movement. The bracket 13 is mounted above the two sets of support frames 12. The function of the bracket 13 is to provide a support surface for the filter housing 15, allowing the filter housing 15 to be stably placed on the mounting assembly without tilting. The combination of the support frames 12 and the bracket 13 is equivalent to building a seat for the filter housing 15, which can be placed without additional suspension or clamping, facilitating daily disassembly, maintenance, or replacement of filter media.

[0024] The chuck 14 is located on the bracket 13, and the filter housing 15 is clamped between the chuck 14.

[0025] Specifically, the chuck 14 is positioned above the bracket 13 and is typically a symmetrically arranged clamping element or a semi-encircling structure on both sides, used to clamp the outer wall of the filter housing 15 from both sides. After the filter housing 15 is placed, lateral restraint is achieved through the limiting engagement of the chuck 14, reducing the shaking or displacement of the filter housing 15 during operation. Compared to fixing methods using threaded pressure plates or full-circle clamps, the clamping method of the chuck 14 is closer to locking after placement. When maintenance is required, the chuck 14 can be directly released and the filter housing 15 can be lifted without disassembling the entire machine. For scenarios requiring regular cleaning or replacement of internal filter media, this clamping method is more convenient for on-site operation.

[0026] An absorbent cotton 22 is provided inside the filter housing 15 near the water inlet. One end of the absorbent cotton 22 is flush with the filter housing 15, and the other end of the absorbent cotton 22 is connected to the filter chamber 16.

[0027] Specifically, the absorbent cotton 22 is positioned on the inlet side of the filter housing 15 to provide initial interception before or immediately after the water enters the filter chamber 16. One end of the absorbent cotton 22 is roughly flush with the inner wall of the filter housing 15, effectively forming a water-facing surface near the inlet. This helps to intercept larger impurities or floating objects, preventing them from directly entering the deeper areas of the filter chamber 16. The other end of the absorbent cotton 22 connects to the filter chamber 16, allowing the water to pass through the filter media before entering the main flow channel separated by the baffle 18. This ensures that the water flow controlled by the subsequent electric valve 21 and the channel 19 is relatively cleaner, reducing the accumulation of particulate impurities at the valve opening. The absorbent cotton 22 also acts as a buffer, dispersing the initial impact of the water flow and preventing localized wear within the filter chamber caused by single-point scouring.

[0028] Both the filter chamber 16 and the filter pool 17 are fitted with fixing plates 23 on their outer sides, and the filter chamber 16 and the filter pool 17 are connected to the filter housing 15 through the fixing plates 23.

[0029] Specifically, the fixing plate 23 is located at the outer contour of the filter chamber 16 and the filter pool 17, serving to connect, limit, and seal. The filter chamber 16 and the filter pool 17 can be understood as two functional sections inside the filter housing 15. The fixing plate 23 acts like an edge pressure ring, connecting them to the housing body. Through the locking of the fixing plate 23, the filter chamber 16 and the filter pool 17 can form a relatively reliable fit with the filter housing 15 while maintaining their positioning, reducing leakage and crossflow. This structure is also convenient for subsequent maintenance: simply remove the fixing plate 23 or loosen the locking point to lift or partially pull out the filter chamber 16 or the filter pool 17 from the filter housing 15, facilitating inspection of the baffle 18, cleaning of deposits, adjustment of the absorbent cotton 22, etc.

[0030] The filter housing 15 has a boss 24 at the water inlet end, and a quick-release dust cover 25 is provided inside the boss 24.

[0031] Specifically, the boss 24 is located at the end of the filter housing 15 near the water inlet, serving as a reinforced part where the water inlet interface is located. Making the water inlet end into a boss 24 facilitates connection with external pipes, hoses, or water inlet connectors, and also provides sufficient thickness in this area for structural features such as threaded holes, slots, or positioning surfaces. A quick-release dust cover 25 is installed inside the boss 24. This cover can cover the water inlet when the equipment is stopped, moved, or stored, preventing dust, debris from entering, and foreign objects from clogging it. When needed, the quick-release dust cover 25 can be opened or removed directly without cumbersome disassembly. For outdoor or dusty environments, this structure helps maintain the cleanliness of the water inlet, reducing the workload of subsequent rinsing.

[0032] The usage and function of this embodiment are as follows: In use, the filter housing 15 is supported on the bracket 13 by the chuck 14, and supported by the side brackets 12. The mounting bracket 11 provides a floor-mounted or fixed position. The liquid to be treated enters the filter housing 15 from the water inlet end of the boss 24, flows into the absorbent cotton 22 area through the inlet opened by the quick-release dust cover 25, and larger suspended solids are first intercepted at the absorbent cotton 22. Then the water flows into the filter chamber 16, and the water flows forward through the path separated by the partition 18. The water inlet side of the filter chamber 16 is controlled by two sets of electric valves 21, which are located in the corresponding through grooves 19. They can determine which side of the passage is currently supplying water and whether the other side remains closed. This way, when one side of the passage needs maintenance or flushing, the other side can continue to supply water. The water flows from the water outlet end of the filter chamber 16 to the filter tank 17. In the filter tank 17 section, the water stays for a certain period of time, and impurities are deposited at the bottom or further intercepted by the downstream filter media.

[0033] Finally, water flows from the outlet of the filter tank 17 to the outlet of the filter housing 15, completing one filtration process. During use, if particles are found in the water at the outlet or the flow rate is low, the filter housing 15 can be removed by loosening the chuck 14 and cleaning or replacing the filter media near the adsorption cotton 22, the partition 18, and the inside of the filter tank 17. The locking structure of the fixing plate 23 makes disassembly and reassembly relatively direct, without the need to disassemble the entire mounting frame 11.

[0034] Overall, this arrangement integrates water inlet introduction, branch adjustment, primary interception, sedimentation adsorption and water outlet in the same filter housing 15. With the support of the mounting bracket 11 and quick-release components, it is convenient for daily maintenance and reuse on site.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments.

Claims

1. A coal mine underground emulsion pump station filtration apparatus comprising a mounting frame (11) characterised in that: The mounting frame (11) is provided with a mounting assembly, and a filter housing (15) is mounted on the mounting assembly; the filter housing (15) is provided with a filter chamber (16) and a filter pool (17), and the filter chamber (16) is located on the side of the filter housing (15) near the water inlet end; the filter chamber (16) is provided with a partition (18), and the water inlet end and the water outlet end of the filter chamber (16) are both provided with two sets of through grooves (19); the water inlet end of the filter chamber (16) is provided with two sets of electric valves (21), and the two sets of electric valves (21) are respectively embedded in the two sets of through grooves (19) at the water inlet end of the filter chamber (16).

2. The filtering device for coal mine underground emulsion pump station according to claim 1, characterized in that: The filter pool (17) is located on the side of the filter housing (15) near the water outlet, and the water inlet of the filter pool (17) is connected to the water outlet of the filter chamber (16), and the water outlet of the filter pool (17) is connected to the water outlet of the filter housing (15).

3. The filtering equipment for coal mine underground emulsion pump station according to claim 1, characterized in that: The mounting assembly includes two sets of support frames (12), brackets (13), and chucks (14). The two sets of support frames (12) are respectively mounted on both sides of the mounting frame (11), and the brackets (13) are located on the support frames (12).

4. The filtration equipment for an underground emulsion pump station in a coal mine according to claim 3, characterized in that: The chuck (14) is located on the bracket (13), and the filter housing (15) is engaged between the chuck (14).

5. The filtering device for coal mine underground emulsion pump station according to claim 1, characterized in that: The filter housing (15) is provided with absorbent cotton (22) near the water inlet. One end of the absorbent cotton (22) is flush with the filter housing (15), and the other end of the absorbent cotton (22) is connected to the filter chamber (16).

6. The filtering device for coal mine underground emulsion pump station according to claim 5, characterized in that: The filter chamber (16) and the filter pool (17) are both fitted with fixing plates (23) on their outer sides. The filter chamber (16) and the filter pool (17) are connected to the filter housing (15) through the fixing plates (23).

7. The filtering device for coal mine underground emulsion pump station according to claim 6, characterized in that: The filter housing (15) has a boss (24) at the water inlet end, and a quick-release dust cover (25) is provided inside the boss (24).

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