Coal mine underground water pump filtering device

Abstract

The utility model discloses a coal mine underground water pump filtering device, including the filter residue mechanism of installing in the water pump water inlet end position, the filter residue mechanism is including the filter residue box, a plurality of scrape residue filter components are assembled with in the filter residue box and are connected, the scrape residue filter component is including the filter screen structure and is used for scraping the scrape residue structure of filter screen structure, the scrape residue structure is including the elastic scraper that touches pressure on filter screen structure, and the elastic scraper fixed fixed connection has the support structure of liftable setting, the support structure is screwed on the filter residue box, the support structure is through the gyro wheel structure and rolls and slides on filter screen structure. The above -mentioned device realizes the basis of not disassembling filter device to the simple, convenient mode of operation with the filter function structure of filter device clean up and discharge residue, guarantees the filter efficiency, and reduces the risk of filter structure serious jam.

Description

Technical Field

[0001] This utility model belongs to the field of coal mine underground water pump filtration technology, and in particular relates to a coal mine underground water pump filtration device. Background Technology

[0002] In coal mining, pumping is necessary to remove accumulated water from underground mines, such as during the dredging of the mine's bottom silt. Therefore, pump houses are built during mine construction, housing water pumps. However, some pumps, such as those used for dredging, often have large amounts of silt, sand, and gangue entering the pump body along with the fluid during the dredging process. This is especially problematic with high-powered pumps, where these debris can easily impact the impeller, causing deformation or even breakage.

[0003] Therefore, in order to protect the water pump, existing technologies often involve installing a filter device at the water inlet of the pump, such as the most common filter box structure. Impurities are filtered and trapped through the filter screen inside the filter box.

[0004] However, in actual operation, it was found that traditional filtration structures cannot self-clean. Once debris clogs the filter and adheres to the filter screen, the filtration unit needs to be disassembled for cleaning. Under normal circumstances, filter cleaning is not particularly frequent. However, in the process of pumping water with high debris and sludge content, such as during the dredging and pumping of accumulated water in the bottom tank mentioned above, a large amount of sludge and gravel in the bottom tank causes severe clogging of the filter screen. If the filter structure cannot be cleaned, it is necessary to disassemble the filter box for cleaning. The whole process is not only cumbersome but also very time-consuming.

[0005] Therefore, it is very important to improve the filtration effect, reduce the workload of filtration maintenance, and increase the efficiency of sludge removal by using a filter that can automatically remove the filter residue and impurities adsorbed on the filter screen. Utility Model Content

[0006] Based on the above background, the purpose of this utility model is to provide a coal mine underground water pump filtration device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A coal mine underground water pump filtration device includes a slag filter mechanism installed at the water inlet of the water pump. The slag filter mechanism includes a slag filter box, and a plurality of slag scraping and filtering components are assembled and connected inside the slag filter box.

[0009] The scraping filter assembly includes a filter screen structure and a scraping structure for scraping the filter screen structure. The scraping structure includes an elastic scraper that presses against the filter screen structure. The elastic scraper is fixedly connected to a support structure that can be raised and lowered.

[0010] The support structure is threadedly connected to the filter cake box;

[0011] The support structure is rolled onto the filter structure by a roller structure.

[0012] Preferably, the filter cake box includes a detachable first box and a second box, the bottom of the first box and the second box are respectively connected to a slag discharge port, and the slag discharge port is threadedly connected to a sealing cover.

[0013] Preferably, the first box and the second box are respectively equipped with a slag scraping and filtering assembly.

[0014] Preferably, the filter structure includes a pair of spaced-apart filter plate supports, and a metal filter plate is fixedly connected inside the filter plate supports;

[0015] The slag scraping structure is located between the filter screen plate supports on both sides and is used to scrape slag from the metal filter screen plates on the filter screen plate supports on both sides.

[0016] Preferably, the support structure includes lifting support rods spaced apart on both sides, and an elastic scraper that cooperates with the metal filter plate is fixedly connected to the side of the lifting support rod facing the metal filter plate;

[0017] A connecting beam is fixedly connected between the lifting support rods, and a driving lifting rod is rotatably connected to the top of the connecting beam. The driving lifting rod is threadedly connected to the top positions of the corresponding first and second housings.

[0018] Preferably, both ends of the lifting support rod are rotatably connected to rollers, and the filter plate support is provided with a roller groove that cooperates with the roller, so that the roller rolls within the roller groove.

[0019] Preferably, the bottom limiting rotatable connection of the drive lifting rod is located at the top center of the connecting beam rod;

[0020] The top positions of the first box and the second box are respectively fixedly connected with threaded sleeves that drive the lifting rod.

[0021] A drive handwheel is fixedly connected to the top of the drive lifting rod.

[0022] Preferably, the sidewalls of the first and second housings facing each other are integrally formed with a shaped flange;

[0023] The shaped flanges are fastened together by a number of bolts;

[0024] A sealing gasket is provided between the shaped flanges.

[0025] Preferably, a gate valve is connected to the water inlet end of the filter cake box.

[0026] Preferably, the elastic scraper is curved.

[0027] This utility model has the following beneficial effects:

[0028] 1. During operation, the elastic scraper scrapes along the metal filter screen by lifting and lowering the drive support structure. During the scraping process, the elastic scraper can scrape off the debris attached to the metal filter screen and remove the slag. This avoids a large amount of debris (such as silt, gangue fragments, and gravel) from adhering to the metal filter screen and becoming too thick (which cannot be cleaned by fluid alone). After scraping and removing the slag, when the thickness of the attached debris is reduced, the remaining debris in the filter holes can be fully discharged under the slight push of the fluid.

[0029] 2. During operation, the operator periodically rotates the drive lifting rod. During this rotation, such as when adjusting the lifting support rod downwards, the elastic scraper fixed to the lifting support rod elastically contacts the metal filter plate, scraping off the thick layer of filter residue adhering to the metal filter plate. This releases the metal filter plate, facilitating the opening of the filter holes with the help of fluid flow (in fact, after the elastic scraper scrapes, a large amount of residue clogging the filter holes is also cleared). Traditional filtration structures, however, cannot remove sludge, causing the dirt and debris adhering to the filter screen to become increasingly thick, obstructing fluid flow and leading to severe blockage.

[0030] 3. The filter device disclosed in this utility model can scrape and remove sludge from the filter structure on its own, so as to clean and remove sludge from the filter structure in a simple and convenient way without disassembling the filter device, thus ensuring filtration efficiency while reducing the risk of severe clogging of the filter structure. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;

[0033] Figure 2 This is a schematic diagram of the planar structure in an embodiment of the present utility model;

[0034] Figure 3 This is a schematic diagram of the slag scraping and filtering assembly in an embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the slag scraping structure in an embodiment of the present utility model;

[0036] Figure 5 This is a schematic diagram of the structure of the elastic scraper contacting the metal filter plate in an embodiment of this utility model;

[0037] Figure 6 This is an embodiment of the present utility model. Figure 1 A structural diagram from another perspective.

[0038] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] 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.

[0040] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0041] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0042] Example 1

[0043] like Figure 1-6 As shown, a coal mine underground water pump filtration device includes a filter slag mechanism 3 installed at the water inlet end of the water pump. The filter slag mechanism 3 includes a filter slag box, which has the same structure as the existing filter box. The filter slag box includes a detachable first box 31 and a second box 32. Specifically, the side walls of the first box 31 and the second box 32 facing each other are integrally formed with an orifice-shaped flange A. The orifice-shaped flanges A are fastened together by a number of bolts.

[0044] Meanwhile, in accordance with the existing sealing method, a sealing gasket is provided between the aforementioned orifice flanges A (a gasket mounting groove that mates with the gasket is opened on the orifice flange).

[0045] The above method enables the detachable and separable filter cake box.

[0046] Meanwhile, to facilitate slag discharge, according to the existing slag discharge structure, the bottoms of the first box 31 and the second box 32 are respectively connected to slag discharge ports, and the slag discharge ports are threadedly connected to sealing caps 5. During operation, the sealing caps 5 are periodically unscrewed to discharge slag.

[0047] The first box 31 and the second box 32 are each equipped with a scraper filter assembly 4; this assembly filters the filter cake and scrapes off the debris attached to the filter structure, preventing the filter screen from being clogged over a large area.

[0048] Specifically, the slag scraping and filtering assembly 4 includes a filter screen structure, which comprises a pair of spaced-apart filter screen plate supports 41. A metal filter screen plate 411 (the metal filter screen plate 411 is a conventional filter screen plate disclosed in the prior art, with multiple filter holes) is fixedly connected inside the filter screen plate support 41. The filter screen plate support 41 has a frame-like structure and is fixed to the inner sidewalls of the first housing 31 and the second housing 32. The metal filter screen plate 411 is welded and fixed to a rectangular mounting hole at the center of the filter screen plate support 41.

[0049] The slag scraping filter assembly 4 also includes a slag scraping structure 42 for scraping the filter screen structure. Specifically, the slag scraping structure 42 is disposed between the two filter screen plate supports 41 on both sides and is used to scrape the metal filter screen plates 411 on the two filter screen plate supports 41 on both sides.

[0050] Each scraper filter assembly 4 scrapes and removes debris attached to a pair of filter screen brackets 41-metal filter screen 411 structures installed in the first box 31 and the second box 32.

[0051] Specifically, the slag scraping structure 42 includes a pair of elastic scrapers 424 that press against the metal filter plates 411 on both sides respectively, and the elastic scrapers 424 are fixedly connected to a support structure that can be raised and lowered.

[0052] During operation, the elastic scraper 424 scrapes along the metal filter plate 411 by lifting and lowering the drive support structure. During the scraping process, the elastic scraper 424 scrapes and removes the debris attached to the metal filter plate 411 by elastic contact and scraping. This avoids a large amount of debris (such as silt, gangue fragments, and gravel) from being attached to the metal filter plate 411 in excessive thickness (which cannot be cleaned by fluid alone). After scraping and removing the debris, when the thickness of the attached debris is reduced, the remaining debris in the filter holes can be fully discharged under the slight push of the fluid.

[0053] Example 2

[0054] like Figure 1-6 As shown, in this embodiment, based on the structure of embodiment 1, the above-mentioned support structure is threadedly connected to the filter cake box; the support structure rolls on the filter screen structure through the roller structure.

[0055] Specifically, the support structure includes lifting support rods 4212 spaced apart on both sides. An elastic scraper 424, which cooperates with the metal filter plate 411, is fixedly connected to the side of the lifting support rod 4212 facing the metal filter plate 411. The elastic scraper 424 is curved, specifically with an S-shaped cross-section, and is made of an elastic metal material such as silicon steel sheet welded to the lifting support rod 4212.

[0056] While the curved elastic scraper 424 is more easily deformed during scraping, it can maintain its elasticity for a long time and exert a greater force against the metal filter plate 411.

[0057] Meanwhile, a connecting beam 4211 is fixedly connected between the center positions of the lifting support rods 4212, and a drive lifting rod 422 is rotatably connected to the top of the connecting beam 4211. Specifically, the top center of the connecting beam 4211 is rotatably connected to the drive lifting rod 422.

[0058] The specific limiting rotation connection method is as follows: According to the existing limiting rotation connection method, the limiting seat 42121 is fixedly connected to the top center of the connecting beam rod 4211. A T-shaped limiting rotation groove is opened in the limiting seat 42121. Correspondingly, the bottom of the driving lifting rod 422 is fixedly connected to the T-shaped rotating head that is limited in the T-shaped limiting rotation groove. The limiting rotation connection is achieved in this way.

[0059] Correspondingly, the upper end of the drive lifting rod 422 is threadedly connected to the top of the corresponding first housing 31 and second housing 32 (the drive lifting rod 422 has a threaded structure). Correspondingly, mounting holes are opened at the top of the first housing 31 and the second housing 32, and threaded sleeves 4212 that are threadedly connected to the drive lifting rod 422 are fixedly connected in the mounting holes respectively.

[0060] The lifting rod 422 is raised and lowered by the thread force. At the same time, in order to facilitate the turning of the lifting rod 422, a drive handwheel is fixedly connected to the top of the lifting rod 422.

[0061] During operation, the operator periodically rotates the drive lifting rod 422. During this rotation, such as when adjusting the lifting support rod 4212 downwards, the elastic scraper 424 fixedly connected to the lifting support rod 4212 elastically contacts the metal filter plate 411, scraping off the thick layer of filter residue adhering to the metal filter plate 411. This releases the metal filter plate 411, facilitating the opening of the filter holes under fluid flow (in fact, after the elastic scraper 424 scrapes, a large amount of residue clogging the filter holes is also cleared). In contrast, traditional filtration structures, due to the inability to remove slag, accumulate increasingly thick layers of dirt and debris on the filter screen, hindering fluid flow and causing severe blockage.

[0062] Example 3

[0063] like Figure 1-6 As shown, in this embodiment, based on the structure of embodiment 2, in order to prevent the lifting support rod 4212 from detaching from the filter plate support 41 during the driving lifting process, causing the elastic scraper 424 to detach from the metal filter plate 411, the two ends of the lifting support rod 4212 are respectively rotatably connected to rollers 423. Correspondingly, the filter plate support 41 is provided with a pulley groove that cooperates with the roller, and the roller 423 is limited to rolling in the pulley groove.

[0064] Example 4

[0065] like Figure 1-6 As shown, in this embodiment, based on the structure of embodiment 3, in accordance with the existing method, the water inlet end of the above-mentioned filter cake box is connected to the water inlet pipe 1, and the water inlet pipe 1 is connected to the gate valve 2. When it is necessary to clean the sludge and drain the silt, the water circuit is closed by the gate valve 2.

[0066] Meanwhile, in the existing method, the outlet end of the filter cake box is connected to an outlet pipe (not shown in the figure), which is connected to the inlet end of the water pump, such as by flange installation.

[0067] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A coal mine underground water pump filtration device, characterized in that, It includes a filter cake mechanism installed at the water inlet of the water pump. The filter cake mechanism includes a filter cake box, and several scraper filter components are assembled and connected inside the filter cake box. The scraping filter assembly includes a filter screen structure and a scraping structure for scraping the filter screen structure. The scraping structure includes an elastic scraper that presses against the filter screen structure. The elastic scraper is fixedly connected to a support structure that can be raised and lowered. The support structure is threadedly connected to the filter cake box; The support structure is rolled onto the filter structure by a roller structure.

2. The coal mine underground water pump filtration device according to claim 1, characterized in that, The filter cake box includes a detachable first box and a second box. The bottom of the first box and the second box are respectively connected to a slag discharge port, and the slag discharge port is threadedly connected to a sealing cover.

3. The coal mine underground water pump filtration device according to claim 2, characterized in that, The first and second housings are respectively equipped with slag scraping and filtering components.

4. The coal mine underground water pump filtration device according to claim 3, characterized in that, The filter structure includes a pair of spaced-apart filter plate supports, and a metal filter plate is fixedly connected inside the filter plate supports. The slag scraping structure is located between the filter screen plate supports on both sides and is used to scrape slag from the metal filter screen plates on the filter screen plate supports on both sides.

5. The coal mine underground water pump filtration device according to claim 4, characterized in that, The support structure includes lifting support rods spaced apart on both sides, and an elastic scraper that cooperates with the metal filter plate is fixedly connected to the side of the lifting support rod facing the metal filter plate. A connecting beam is fixedly connected between the lifting support rods, and a driving lifting rod is rotatably connected to the top of the connecting beam. The driving lifting rod is threadedly connected to the top positions of the corresponding first box and second box.

6. The coal mine underground water pump filtration device according to claim 5, characterized in that, The lifting support rod is rotatably connected to two ends of rollers, and the filter plate support is provided with a roller groove that cooperates with the rollers, and the rollers are limited to rolling within the roller groove.

7. The coal mine underground water pump filtration device according to claim 5, characterized in that, The bottom limit rotatable connection of the drive lifting rod is located at the top center of the connecting beam rod; The top positions of the first box and the second box are respectively fixedly connected with threaded sleeves that drive the lifting rod. A drive handwheel is fixedly connected to the top of the drive lifting rod.

8. The coal mine underground water pump filtration device according to claim 2, characterized in that, The side walls of the first and second boxes facing each other are integrally formed with a mouth-shaped flange; The shaped flanges are fastened together by a number of bolts; A sealing gasket is provided between the shaped flanges.

9. The coal mine underground water pump filtration device according to claim 1, characterized in that, The filter cake box is connected to a gate valve at its water inlet.

10. The coal mine underground water pump filtration device according to claim 1, characterized in that, The elastic scraper is curved.

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