Underground coal mine wastewater filtering device

Abstract

The utility model discloses a coal mine underground wastewater filtering device, which relates to the technical field of water treatment and comprises a device main body, a water inlet, a sewage tank, a valve port, a first precipitation net, a flow guide net, a second precipitation net, a flushing mechanism, an opening and closing door and a water purification membrane, a support rod is connected above the center of the water purification membrane, and a filter screen is connected to the outer side of the support rod. The filter screen is located in the center of the auxiliary block, and a threaded connector is connected below the threaded cover. The first sedimentation net and the second sedimentation net which are of conical structures are arranged in the device main body, large sundries in sewage are filtered and screened, then the large sundries are driven by the flow guide net to move towards the center direction of the opening and closing door and are accumulated in the center of the opening and closing door, and the large sundries are separated from the opening and closing door. And when cleaning is needed, rapid centralized cleaning can be conducted by opening the opening and closing door, centralized cleaning of the sundries is facilitated, and the cleaning efficiency of the sundries is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to a coal mine underground wastewater filtering device. Background Art

[0002] Coal is an important energy source and chemical raw material in my country. Coal collection is generally divided into two types: open-pit operation and underground operation. During underground operation, the wastewater generated by the underground wastewater filtration device of the coal mine is generally pumped out to the ground for treatment through large water pumps. This treatment method is very power-consuming, has a long transmission distance, and causes great wear and tear on the pipeline.

[0003] The existing patent (Announcement No.: CN220537659U) discloses a coal mine wastewater filtration device, which uses a backwashing device to clean the filter belt of the sedimentation box to extend the service life. The water purification membrane tube can be drawn out and cleaned together with the water collection cover, which has a long service life. In addition, multiple groups of water purification membrane tubes filter together, with a large filtration area and high filtration efficiency. In the process of implementing this solution, it was found that the following problems exist in the prior art and have not been well solved:

[0004] It uses a reverse blowing device to blow away the debris, but the debris still accumulates on the top of the filter belt, making it difficult to filter the debris. Secondly, the operation of removing the debris is cumbersome, which is not convenient for staff to use. In addition, when using it, the filtering effect of relying solely on the water purification membrane is limited, and it cannot guarantee that the water flow can move to the center of the water purification membrane to be filtered by the water purification membrane. Utility Model Content

[0005] In order to improve the above-mentioned problems that debris is easily accumulated on the filter belt, the debris cleaning work is difficult, and it is impossible to ensure that the water flow can enter the center of the water purification membrane, the utility model provides a coal mine underground wastewater filtering device.

[0006] The utility model provides a coal mine wastewater filtering device, which adopts the following technical scheme:

[0007] A coal mine underground wastewater filtering device, comprising a device body and a threaded cover, wherein the upper part of the device body is connected with a water inlet, a sewage tank is arranged below the water inlet, a valve port is arranged below the sewage tank, a first sedimentation net is arranged below the valve port, a guide net is connected to the outer side of the first sedimentation net, a second sedimentation net is connected below the guide net, a flushing mechanism is arranged at the center of the second sedimentation net, and an opening and closing door is arranged above the second sedimentation net;

[0008] A water purification membrane is connected above the threaded cover, a support rod is connected above the center of the water purification membrane, a filter is connected to the outside of the support rod, the filter is located at the center of the auxiliary block, and a threaded connection port is connected below the threaded cover.

[0009] Through the above technical scheme, it is convenient to cooperate with the first sedimentation net and the diversion net with a conical structure, so that the debris can move along the first sedimentation net and the diversion net to the position of the opening and closing door, so as to facilitate the centralized treatment of the debris and prevent accumulation. At the same time, the filter net and the auxiliary block are used to filter the sewage for a second time and place it in the center of the water purification membrane to ensure the filtering effect.

[0010] Optionally, in the above-mentioned coal mine underground wastewater filtering device, valve ports are symmetrically distributed below the sewage tank, the valve ports are located above the center of the first sedimentation net, and the first sedimentation net and the second sedimentation net are installed in an integrated manner.

[0011] Through the above technical solution, it is convenient to use the valve port to control whether the sewage in the sewage tank is circulated, so as to perform preliminary filtration through the first sedimentation net.

[0012] Optionally, in the above-mentioned coal mine underground wastewater filtering device, the opening and closing door is connected to the device body by a rotating connection, the bottom of the opening and closing door and the top of the second sedimentation net are above the same horizontal line, and the second sedimentation net is installed in an integrated manner with the device body.

[0013] Through the above technical solution, it is convenient to quickly remove the debris above the second sedimentation net by opening and closing the door, so as to avoid the accumulation of debris affecting the use.

[0014] Optionally, in the above-mentioned coal mine underground wastewater filtering device, the diversion net is a circular ring structure, the diversion net is higher on the right and lower on the left, the diversion net and the second sedimentation net are installed in an integrated manner, and the center of the second sedimentation net coincides with the center of the flushing mechanism.

[0015] Through the above technical solution, it is convenient to transport the debris flushed down from the first sedimentation net to the center of the opening and closing door through the guide net, so as to facilitate centralized processing.

[0016] Optionally, in the above-mentioned coal mine underground wastewater filtering device, the auxiliary block is funnel-shaped, the auxiliary block is connected to the filter screen by a sliding connection, and the filter screen is installed in an integrated manner with the water purification membrane through a support rod.

[0017] Through the above technical solution, it is convenient to concentrate the water flow to the position of the filter screen through the cooperation between the auxiliary block and the filter screen, so as to perform double filtering.

[0018] Optionally, in the above-mentioned coal mine underground wastewater filtration device, the water purification membrane and the threaded cover are installed in an integrated manner, the threaded cover is connected to the device body by a threaded connection, and the threaded cover forms a threaded connection structure with the water outlet pipe through a threaded connection port.

[0019] Through the above technical solution, it is convenient to fix the water purification membrane with the threaded cover, so as to quickly disassemble the water purification membrane, clean and replace the water purification membrane.

[0020] In summary, the present invention has at least one of the following beneficial effects:

[0021] By arranging the first sedimentation net and the second sedimentation net with a conical structure inside the main body of the device, large debris in the sewage is filtered and screened, and then the large debris moves toward the center direction of the opening and closing door driven by the diversion net and accumulates in the center of the opening and closing door. When cleaning is needed, the opening and closing door can be opened for rapid and centralized cleaning, which is convenient for centralized cleaning of debris and improves the cleaning efficiency of debris.

[0022] By arranging a funnel-shaped auxiliary block inside the main body of the device in cooperation with the filter screen, the water flows through the auxiliary block and moves toward the filter screen, so that after double filtration, it enters the interior of the water purification membrane and is discharged after filtration. The filter screen, the water purification membrane and the threaded cover are integrated for disassembly and installation to ensure easy maintenance and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall front view structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the top view of the first sedimentation net of the utility model;

[0025] Figure 3 This is a schematic diagram of the side view structure of the guide net of the utility model;

[0026] Figure 4 It is a schematic diagram of the top view structure of the filter screen of the utility model.

[0027] In the figure: 1. Device body; 2. Water inlet; 3. Sewage tank; 4. Valve port; 5. First sedimentation net; 6. Opening and closing door; 7. Flushing mechanism; 8. Diversion net; 9. Second sedimentation net; 10. Auxiliary block; 11. Support rod; 12. Filter net; 13. Water purification membrane; 14. Threaded cover; 15. Threaded connection port. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-4 The utility model is described in further detail.

[0029] Please refer to the attached figure in the instruction manual Figure 1-4, the utility model provides an embodiment: a coal mine underground wastewater filtering device, including a device body 1 and a threaded cover 14, the upper part of the device body 1 is connected with a water inlet 2, and a sewage tank 3 is arranged below the water inlet 2, through which sewage is temporarily stored, which is convenient for subsequent filtration, a valve port 4 is arranged below the sewage tank 3, and a first sedimentation net 5 is arranged below the valve port 4, through which sewage is preliminarily filtered, which is convenient for subsequent use, a guide net 8 is connected to the outer side of the first sedimentation net 5, and the washed-down debris is moved to the position of an opening and closing door 6 through the guide net 8 for centralized treatment, a second sedimentation net 9 is connected below the guide net 8, and a flushing mechanism 7 is arranged at the center of the second sedimentation net 9, and an opening and closing door 6 is arranged above the second sedimentation net 9, and the opening and closing door 6 is used to take out debris to ensure use;

[0030] A water purification membrane 13 is connected to the top of the threaded cover 14, and a support rod 11 is connected to the top of the center of the water purification membrane 13. A filter screen 12 is fixed by the support rod 11 for auxiliary filtration. The outside of the support rod 11 is connected to the filter screen 12, and the filter screen 12 is located in the center of the auxiliary block 10. The auxiliary block 10 is used to concentrate the water flow to ensure the filtering effect. A threaded connection port 15 is connected to the bottom of the threaded cover 14.

[0031] See the attached drawings in the specification Figure 1-4 Valve ports 4 are symmetrically distributed below the sewage tank 3. The valve ports 4 are located above the center of the first sedimentation net 5. The first sedimentation net 5 and the second sedimentation net 9 are installed in an integrated manner. The valve ports 4 are used to control whether the sewage in the sewage tank 3 flows, so that the sewage is preliminarily filtered through the first sedimentation net 5.

[0032] See the attached drawings in the specification Figure 1-4 The opening and closing door 6 is connected to the device body 1 in a rotating manner. The bottom of the opening and closing door 6 is above the same horizontal line as the top of the second sedimentation net 9. The second sedimentation net 9 is installed in an integrated manner with the device body 1. The opening and closing door 6 can be used to quickly remove debris above the second sedimentation net 9 to avoid accumulation of debris affecting use.

[0033] See the attached drawings in the specification Figure 1-4 The guide net 8 is a circular ring structure, with the right side higher than the left side. The guide net 8 and the second sedimentation net 9 are installed in an integrated manner. The center of the second sedimentation net 9 coincides with the center of the flushing mechanism 7. The debris flushed down by the first sedimentation net 5 is transmitted to the center of the opening and closing door 6 through the guide net 8, which is convenient for centralized processing.

[0034] See the attached drawings in the specification Figure 1-4The auxiliary block 10 is funnel-shaped, and the connection between the auxiliary block 10 and the filter screen 12 is a sliding connection. The filter screen 12 is integrated with the water purification membrane 13 through the support rod 11. The auxiliary block 10 cooperates with the filter screen 12 to concentrate the water flow to the position of the filter screen 12, thereby performing double filtration.

[0035] See the attached drawings in the specification Figure 1-4 The water purification membrane 13 and the threaded cover 14 are installed in an integrated manner. The threaded cover 14 is connected to the device body 1 by a threaded connection. The threaded cover 14 forms a threaded connection structure with the water outlet pipe through the threaded connection port 15. The water purification membrane 13 is fixedly connected to the threaded cover 14, so that the water purification membrane 13 can be quickly disassembled for cleaning and replacement.

[0036] Working principle: When in use, first, sewage enters the interior of the sewage tank 3 through the water inlet 2, and then the valve port 4 is opened when the sewage needs to be initially filtered, and the sewage flows downward through the valve port 4. During the process, the sewage first contacts the first sedimentation net 5 for initial filtration, and then the debris is screened by the first sedimentation net 5. At the same time, the debris falls downward along the first sedimentation net 5, and the debris falling on the top of the guide net 8 flows along the guide net 8 to the position of the opening and closing door 6, and falls below after being filtered by the second sedimentation net 9. As mentioned above, after long-term use, open the opening and closing door 6 to clean up the debris above the second sedimentation net 9;

[0037] As mentioned above, after the preliminary filtration, the water flows along the auxiliary block 10 toward the center, and falls into the inside of the water purification membrane 13 after being filtered by the two filter screens 12. After the final filtration through the water purification membrane 13, the water is discharged through the water outlet pipe inside the threaded connection port 15. When it is necessary to inspect and clean the water purification membrane 13, the water outlet pipe is twisted to disconnect it from the threaded connection port 15, and then the threaded cover 14 is rotated to remove the water purification membrane 13.

[0038] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A coal mine wastewater filtering device, comprising a device body (1) and a threaded cover (14), characterized in that: The upper part of the device body (1) is connected to a water inlet (2), a sewage tank (3) is arranged below the water inlet (2), a valve port (4) is arranged below the sewage tank (3), a first sedimentation net (5) is arranged below the valve port (4), the outer side of the first sedimentation net (5) is connected to a flow guide net (8), the lower part of the flow guide net (8) is connected to a second sedimentation net (9), a flushing mechanism (7) is arranged at the center of the second sedimentation net (9), and an opening and closing door (6) is arranged above the second sedimentation net (9); A water purification membrane (13) is connected above the threaded cover (14), a support rod (11) is connected above the center of the water purification membrane (13), a filter screen (12) is connected to the outside of the support rod (11), and the filter screen (12) is located at the center of the auxiliary block (10), and a threaded connection port (15) is connected below the threaded cover (14).

2. A coal mine wastewater filtering device according to claim 1, characterized in that: Valve ports (4) are symmetrically distributed below the sewage tank (3), and the valve ports (4) are located above the center of the first sedimentation net (5). The first sedimentation net (5) and the second sedimentation net (9) are installed in an integrated manner.

3. The underground coal mine wastewater filtering device according to claim 1, characterized in that: The opening and closing door (6) is connected to the device body (1) in a rotating manner, the bottom of the opening and closing door (6) and the top of the second sedimentation net (9) are located above the same horizontal line, and the second sedimentation net (9) and the device body (1) are installed in an integrated manner.

4. The coal mine wastewater filtering device according to claim 1, characterized in that: The guide net (8) is a circular ring structure, the guide net (8) is higher on the right and lower on the left, the guide net (8) is installed in an integrated manner with the second sedimentation net (9), and the center of the second sedimentation net (9) coincides with the center of the flushing mechanism (7).

5. The coal mine wastewater filtering device according to claim 1, characterized in that: The auxiliary block (10) is in a funnel-shaped structure, the auxiliary block (10) is connected to the filter screen (12) in a sliding manner, and the filter screen (12) is integrally installed with the water purification membrane (13) via a support rod (11).

6. The underground coal mine wastewater filtering device according to claim 1, characterized in that: The water purification membrane (13) and the threaded cover (14) are installed in an integrated manner; the threaded cover (14) and the device body (1) are connected in a threaded manner; the threaded cover (14) and the water outlet pipe form a threaded connection structure via a threaded connection port (15).

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