An influent filtering device for a leachate conditioning tank

Abstract

The utility model discloses a kind of leachate regulating pool water inlet filter devices, including filter box, drum grating machine is installed in filter box, the both sides of filter box are connected with liquid supply pipe and liquid outlet pipe respectively, bag filter is provided on liquid supply pipe, adjusting valve is provided between liquid supply pipe and bag filter, baffle is provided in filter box, baffle separates into two areas of liquid inlet area and liquid outlet area in filter box, liquid inlet area is communicated with liquid supply pipe, liquid outlet area is communicated with liquid outlet pipe, drum grating machine is installed in liquid outlet area.The utility model carries out prefiltering to the leachate that enters drum grating machine by bag filter, removes the coarse particle impurity therein.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and more specifically, to a leachate conditioning tank inlet water filtration device. Background Technology

[0002] During the collection and disposal of municipal solid waste, leachate is generated due to physical, biological, and chemical processes such as compaction and fermentation. Before entering the equalization tank, the leachate is mostly filtered through a rotary drum screen. However, the leachate contains suspended solids, silt, and other impurities, which are large and abundant, easily clogging the rotary drum screen and causing overflow, resulting in poor filtration and affecting the water quality entering the equalization tank. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a leachate conditioning tank inlet filtration device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model discloses a leachate regulating tank inlet filtration device, including a filter box, a rotary drum bar screen installed inside the filter box, a supply pipe and an outlet pipe connected to both sides of the filter box respectively, a bag filter installed on the supply pipe, a regulating valve installed between the supply pipe and the bag filter, a partition installed inside the filter box, the partition dividing the filter box into an inlet area and an outlet area, the inlet area being connected to the supply pipe, and the outlet area being connected to the outlet pipe, the rotary drum bar screen being installed in the outlet area.

[0006] Furthermore, oil filter cotton is installed in the liquid inlet area.

[0007] Furthermore, floats are installed at both ends of the oil filter cotton, and several clamps are provided on the floats to hold the ends of the oil filter cotton.

[0008] Furthermore, the liquid supply pipe includes a tee-1 and a tee-2, with the tee-2 located on the side near the filter box. The bag filter includes an inlet pipe and an outlet pipe. The inlet pipe is connected to the tee-1, and the outlet pipe is connected to the tee-2. Regulating valves are installed at the connection points of the inlet pipe and the tee-1, the connection points of the outlet pipe and the tee-2, and at the end of the tee-1 near the filter box.

[0009] Furthermore, a guide sleeve is provided on the side of the filter box, and a connecting rope is threaded through the guide sleeve. The end of the connecting rope is connected to the float.

[0010] Furthermore, a limiting component is installed on the outside of the filter box at the position corresponding to the guide sleeve, and the connecting rope passes through the limiting component. One end of the connecting rope passing through the limiting component is connected to a pull block.

[0011] Furthermore, the limiting component includes a limiting disc with a through hole in the middle. A connecting rope passes through the through hole. A threaded seat is installed on the outer periphery of the limiting disc. An adjusting screw is threaded into the threaded seat. One end of the adjusting screw extends into the through hole and is rotatably connected to a fixing block.

[0012] Furthermore, a guide rod is connected to the side of the fixing block near the threaded seat, and a guide hole is opened on the limiting plate, with the end of the guide rod away from the fixing block extending into the guide hole.

[0013] The beneficial effects of this utility model are: by using a bag filter to pre-filter the leachate entering the filter box, the coarse particulate impurities are filtered out, avoiding excessive impurities that could clog the rotary drum bar screen in the filter box, thus ensuring the normal operation of the rotary drum bar screen. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a structure of the leachate conditioning tank inlet filtration device in this embodiment;

[0015] Figure 2 This is a schematic diagram of one structure of the filter box in this embodiment;

[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 This is a schematic diagram of one structure of the limiting member in this embodiment;

[0018] Figure 5 This is a partial structural diagram of the regulating valve in this embodiment.

[0019] Reference numerals: 1. Filter box; 2. Rotary drum bar screen; 3. Liquid supply pipe; 4. Liquid outlet pipe; 5. Bag filter; 6. Inlet pipe; 7. Outlet pipe; 8. T-junction 1; 9. T-junction 2; 10. Regulating valve; 11. Baffle plate; 12. Liquid inlet area; 13. Liquid outlet area; 14. Oil filter cotton; 15. Float block; 16. Clamping block; 17. Guide sleeve; 18. Connecting rope; 19. Limiting plate; 20. Threaded seat; 21. Adjusting screw; 22. Pull block; 23. Through hole; 24. Fixing block; 25. Guide hole; 26. Guide rod; 27. Valve body; 28. Valve stem; 29. ​​Positioning plate; 30. Bayonet; 31. Fixed handle; 32. Mounting groove; 33. Mounting shaft; 34. Movable handle; 35. Clamping block; 36. Spring; 37. Groove. Detailed Implementation

[0020] 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.

[0021] like Figures 1-5 As shown, a leachate regulating tank inlet filtration device includes a filter box 1, a rotary drum bar screen 2 installed inside the filter box 1, a supply pipe 3 and an outlet pipe 4 connected to both sides of the filter box 1 respectively, a bag filter 5 installed on the supply pipe 3, and a regulating valve 10 installed between the supply pipe 3 and the bag filter 5. The supply pipe 3 includes a T-junction 1 8 and a T-junction 2 9, with the T-junction 2 9 located on the side closer to the filter box 1. The bag filter 5 includes an inlet pipe 6 and an outlet pipe 7, with the inlet pipe 6 connected to the T-junction 1 8 and the outlet pipe 7 connected to the T-junction 2 9. Regulating valves 10 are installed at the connection points of the inlet pipe 6 and the T-junction 1 8, the connection points of the outlet pipe 7 and the T-junction 2 9, and at the end of the T-junction 1 8 near the filter box 1.

[0022] Close the regulating valve 10 at the end of the three-way valve 18 near the filter box 1, and open the regulating valves 10 at the connection between the three-way valve 18 and the input pipe 6, and the connection between the three-way valve 29 and the output pipe 7, so that the leachate enters the bag filter 5 for filtration and then enters the filter box 1. The bag filter 5 performs pre-filtration of the leachate, filtering out coarse particulate impurities, thereby avoiding excessive impurities in the leachate that could cause blockage of the rotary drum bar screen 2.

[0023] After the bag filter 5 has been filtering for a period of time, the filter bags inside the bag filter 5 need to be replaced. Open the regulating valve 10 at the end of the three-way valve 18 near the filter box 1, and close the regulating valves 10 at the connection between the three-way valve 18 and the inlet pipe 6, and the connection between the three-way valve 29 and the outlet pipe 7, so that the leachate directly enters the regulating valve 10 without passing through the bag filter 5. During the replacement process, the leachate feed does not need to be stopped. After replacing the filter bags in the bag filter 5, switch back to the original state and continue pre-filtration of the leachate entering the filter box 1.

[0024] The filter box 1 is equipped with a partition 11, which divides the filter box 1 into two areas: an inlet area 12 and an outlet area 13. The inlet area 12 is connected to the supply pipe 3, and the outlet area 13 is connected to the outlet pipe 4. The rotary drum bar screen 2 is installed in the outlet area 13. The inlet area 12 is equipped with oil filter cotton 14, which absorbs the oil on the surface of the leachate.

[0025] The filter bags in bag filter 5 are selected with a filter bag size of 1000-1200um, which can intercept about 50kg of debris within 15 days.

[0026] To prevent the filter cotton 14 from being submerged in the leachate and affecting the adsorption effect, floats 15 are installed at both ends of the filter cotton 14. Several clamps 16 are provided on the floats 15, which clamp the ends of the filter cotton 14. The buoyancy of the floats 15 keeps the filter cotton 14 floating on the surface of the leachate, thereby ensuring the absorption effect.

[0027] A guide sleeve 17 is provided on the side of the filter box 1, and a connecting rope 18 is threaded through the guide sleeve 17. The end of the connecting rope 18 is connected to the float 15. A limiting member is installed on the outside of the filter box 1 at the position corresponding to the guide sleeve 17. The connecting rope 18 is set through the limiting member, and one end of the connecting rope 18 passing through the limiting member is connected to a pull block 22.

[0028] A connecting rope 18 is connected to the float 15. By pulling the connecting rope 18 through the pull block 22, the oil filter cotton 14 can be raised, making it convenient for staff to replace the oil filter cotton 14. The pull block 22 acts as a limit, keeping the end of the connecting rope 18 away from the float 15 outside the filter box 1.

[0029] The limiting component includes a limiting disc 19, with a through hole 23 in the middle. The connecting rope 18 passes through the through hole 23. A threaded seat 20 is installed on the outer periphery of the limiting disc 19. An adjusting screw 21 is internally threaded into the threaded seat 20. One end of the adjusting screw 21 extends into the through hole 23 and is rotatably connected to a fixing block 24. By rotating the adjusting screw 21, the fixing block 24 is moved closer to or away from the connecting rope 18, thereby controlling whether the connecting rope 18 is tightened.

[0030] Under normal conditions, the fixing block 24 does not press down on the connecting rope 18, allowing the connecting rope 18 to move with the rise and fall of the float 15. When the filter cotton 14 needs to be replaced, pull one side of the connecting rope 18 to raise the connected float 15 and the end of the filter cotton 14 to a higher position. Then, the fixing block 24 presses and fixes the connecting rope 18, thus confining the float 15 on that side to a higher position. Then, pull the float 15 on the other side to a higher position and fix it. The filter cotton 14 is pulled to a higher position, making it easier for workers to remove it and replace it with a new filter cotton 14. After replacement, release the fixing of the connecting rope 18, allowing the float 15 to bring the filter cotton 14 down to the surface of the leachate.

[0031] A guide rod 26 is connected to the side of the fixing block 24 near the threaded seat 20. A guide hole 25 is provided on the limiting plate 19. The end of the guide rod 26 away from the fixing block 24 extends into the guide hole 25. Through the cooperation of the guide hole 25 and the guide rod 26, the movement of the fixing block 24 is guided, so as to prevent the fixing block 24 from being tilted and unable to effectively press the connecting rope 18.

[0032] The regulating valve 10 includes a valve body 27. A positioning plate 29 is fixedly installed on the top of the valve body 27. Several slots 30 are provided on the outer periphery of the positioning plate 29. A valve stem 28 is rotatably installed inside the valve body 27. A fixed handle 31 is installed on the valve stem 28. An installation groove 32 is opened at the lower part of the fixed handle 31. An installation shaft 33 is installed in the installation groove 32 on the side near the valve stem 28. A movable handle 34 is rotatably installed on the installation shaft 33. A spring 36 is connected between the movable handle 34 and the fixed handle 31. A locking block 35 is provided at the lower part of the movable handle 34. The locking block 35 can be locked into the slots 30.

[0033] Under the action of spring 36, the movable handle 34 rotates away from the fixed handle 31, so that the locking block 35 can engage with the locking slot 30. The cooperation between the locking block 35 and the locking slot 30 can limit the rotation of the movable handle 34, so that the fixed handle 31 cannot drive the valve stem 28 to rotate, thus limiting the adjustment of the regulating valve 10 and preventing accidental activation.

[0034] When adjusting the regulating valve 10, grasp the movable handle 34 and press it into the mounting groove 32, causing the locking block 35 to disengage from the locking slot 30. At this time, the fixed handle 31 can be rotated to drive the valve stem 28 to rotate, thereby rotating the valve plate connected to the valve stem 28 and completing the adjustment of the regulating valve 10. After releasing the movable handle 34, under the action of the spring 36, the locking block 35 can re-lock into the corresponding locking slot 30, and limit the position again.

[0035] The lower part of the movable handle 34 has a groove 37. The groove 37 is designed to make it easy to hold and to press the movable handle 34 into the mounting groove 32 so that the locking block 35 can be disengaged from the locking slot 30.

[0036] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A leachate conditioning tank inlet filtration device, characterized in that, The filter includes a filter box (1), in which a rotary drum bar screen (2) is installed. A liquid supply pipe (3) and a liquid outlet pipe (4) are connected to both sides of the filter box (1). A bag filter (5) is installed on the liquid supply pipe (3). A regulating valve (10) is installed between the liquid supply pipe (3) and the bag filter (5). A partition (11) is installed in the filter box (1). The partition (11) divides the filter box (1) into two areas: an inlet area (12) and an outlet area (13). The inlet area (12) is connected to the liquid supply pipe (3), and the outlet area (13) is connected to the liquid outlet pipe (4). The rotary drum bar screen (2) is installed in the outlet area (13).

2. The leachate conditioning tank inlet filtration device according to claim 1, characterized in that, Oil filter cotton (14) is provided in the liquid inlet area (12).

3. The leachate conditioning tank inlet filtration device according to claim 2, characterized in that, Both ends of the oil filter cotton (14) are equipped with floats (15), and several clamps (16) are provided on the floats (15), which clamp the ends of the oil filter cotton (14).

4. The leachate conditioning tank inlet filtration device according to claim 1, characterized in that, The liquid supply pipe (3) includes a three-way connector one (8) and a three-way connector two (9). The three-way connector two (9) is located on the side close to the filter box (1). The bag filter (5) includes an input pipe (6) and an output pipe (7). The input pipe (6) is connected to the three-way connector one (8), and the output pipe (7) is connected to the three-way connector two (9). A regulating valve (10) is installed at the connection between the input pipe (6) and the three-way connector one (8), the connection between the output pipe (7) and the three-way connector two (9), and the end of the three-way connector one (8) close to the filter box (1).

5. The leachate conditioning tank inlet filtration device according to claim 3, characterized in that, The filter box (1) is provided with a guide sleeve (17) on its side, and a connecting rope (18) is threaded through the guide sleeve (17). The end of the connecting rope (18) is connected to the float (15).

6. The leachate conditioning tank inlet filtration device according to claim 5, characterized in that, A limiting member is installed on the outside of the filter box (1) at the position corresponding to the guide sleeve (17). The connecting rope (18) passes through the limiting member, and a pull block (22) is connected to one end of the connecting rope (18) that passes through the limiting member.

7. The leachate conditioning tank inlet filtration device according to claim 6, characterized in that, The limiting component includes a limiting disc (19), a through hole (23) is provided in the middle of the limiting disc (19), the connecting rope (18) is provided through the through hole (23), a threaded seat (20) is installed on the outer periphery of the limiting disc (19), an adjusting screw (21) is internally threaded to the threaded seat (20), one end of the adjusting screw (21) extends into the through hole (23) and is rotatably connected to a fixing block (24).

8. The leachate conditioning tank inlet filtration device according to claim 7, characterized in that, The fixed block (24) is connected to a guide rod (26) on the side near the threaded seat (20). The limiting plate (19) has a guide hole (25). The end of the guide rod (26) away from the fixed block (24) extends into the guide hole (25).

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