Surface scum cleaning device for secondary sedimentation tank

Abstract

The utility model provides a secondary sedimentation tank surface scum cleaning device which comprises a scum cleaning assembly and a water spraying assembly which are arranged on one side of a bridge frame, the scum cleaning assembly comprises a baffle, the side, close to the inner wall of a secondary sedimentation tank, of the baffle is obliquely arranged towards one side of a scum discharging groove, the water spraying assembly comprises a main water pipe, and a plurality of spray heads are evenly arranged on the main water pipe. And the nozzles face the water surface far away from the bridge in front of the baffle. The scum cleaning device is compact in structure, convenient to use and low in cost, scum cleaning efficiency of the secondary sedimentation tank can be improved, and safety of constructors is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a scum cleaning device for the surface of a secondary sedimentation tank. Background Art

[0002] The secondary sedimentation tank is an important link in the sewage treatment system. Its function is to separate mud and water, clarify the mixed liquid of biological treatment, and at the same time concentrate the sludge in the mixed liquid, effectively ensuring that the suspended solid content in the effluent water quality meets the standard.

[0003] At present, the existing secondary sedimentation tank device is equipped with a slag baffle under the bridge of the sludge scraper. The scraper is driven by the rotation of the bridge to collect the floating scum on the water surface into the slag discharge tank. During the actual operation process, due to the small angle between the installed slag baffle and the bridge, there is always some floating scum moving with the rotation of the scraper and it is very difficult to be swept into the slag discharge tank. The cleaning of the floating scum on the water surface is not thorough enough, which affects the effluent water quality and visual beauty. The effect of increasing the spraying measure on the bridge is not obvious, the range of removing the floating scum on the water surface is small, and in addition, on-site operators need to clean the floating scum again, which poses a safety hazard of falling into the water.

[0004] Chinese Patent Document CN 203634878 U records a scum cleaning device for a sewage treatment secondary sedimentation tank. When the device is installed and used, the angle and position of the slag cleaning baffle cannot be adjusted, and it cannot be adjusted according to the actual operating conditions, and it cannot actively scour the floating scum, so there are defects in use and need to be improved. Summary of the Utility Model

[0005] The utility model provides a scum cleaning device for the surface of a secondary sedimentation tank, which solves the problems of poor cleaning effect and low cleaning efficiency of the floating scum in the secondary sedimentation tank.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: a scum cleaning device for the surface of a secondary sedimentation tank, which includes a slag cleaning component and a water spraying component arranged on one side of the bridge. The slag cleaning component includes a baffle, and one side of the baffle close to the inner wall of the secondary sedimentation tank is inclined towards the slag discharge tank side. The water spraying component includes a main water pipe, and a plurality of nozzles are uniformly arranged on the main water pipe. The nozzles are arranged towards the water surface in front of the baffle and away from the bridge.

[0007] In a preferred solution, the bridge includes a walking board, and a transfer board is arranged on the outer side of the walking board. The slag cleaning component and the water spraying component are connected to the bridge through the transfer board.

[0008] In a preferred solution, two guardrails are symmetrically arranged on the upper side of the walking board respectively. The walking board is connected to the secondary sedimentation tank through two driving components. A rotating shaft is arranged in the middle of the walking board. The rotating shaft is connected with a water pump through a support plate. The water pump is connected with the water spraying component through a transfer pipe.

[0009] In a preferred embodiment, the driving assembly includes a box sleeve and a driving wheel. A first threaded hole is penetrated through the walking plate. The box sleeve is connected to the walking plate by screws, and the screws are arranged in the box sleeve and the first threaded hole. A sludge scraping plate is provided at the bottom of the bridge frame.

[0010] In a preferred embodiment, a chute is penetrated through the middle of the adapter plate. A plurality of second threaded holes are penetrated through the upper side of the chute. The main water pipe is connected to the adapter plate through a clamping sleeve, and the clamping sleeve is threadedly connected to the second threaded hole. The baffle is connected to a slider through a locking sleeve, an adjusting sleeve and a sliding sleeve, and the slider is slidably arranged in the chute.

[0011] In a preferred embodiment, a plurality of mounting holes are penetrated through the main water pipe. The nozzle is inserted into the mounting hole. A threaded head is provided on one side of the main water pipe, and a sealing cover is threadedly connected to the threaded head.

[0012] In a preferred embodiment, the clamping sleeve includes a screw rod and a top disc. The screw rod is threadedly connected to the second threaded hole. Two elastic pieces are symmetrically provided on the upper side of the top disc. A locking pin is penetrated through the upper sides of the two elastic pieces, and the elastic pieces are connected to a nut through the locking pin.

[0013] In a preferred embodiment, a second round rod and a second ball head are provided on the baffle. A first round rod and a first ball head are provided on the slider. The second ball head is ball-hinged to the locking sleeve. The locking sleeve is threadedly connected to the adjusting sleeve. The adjusting sleeve is rotatably arranged on the sliding sleeve. The sliding sleeve is ball-hinged to the first ball head.

[0014] In a preferred embodiment, a counterbore and a first limiting hole are respectively provided on both sides of the sliding sleeve. The first ball head is arranged in the first limiting hole. A third threaded hole is penetrated through the counterbore. A top rod and a disc are provided on the upper side of the adjusting sleeve. The top rod and the disc are inserted into the sliding sleeve. A fourth threaded hole is provided on the lower side of the adjusting sleeve. Threaded columns and second limiting holes are respectively provided on the upper side and the lower side of the locking sleeve. The second ball head is located in the second limiting hole. The threaded column is located in the fourth threaded hole. An insertion rod is threadedly connected to the third threaded hole, and the end of the insertion rod abuts against the top rod.

[0015] In a preferred embodiment, the top surface of the adjusting sleeve abuts against the bottom surface of the sliding sleeve. The slider is connected to a locking disc through a connecting rod. The first round rod is arranged on the locking disc. A plurality of fifth threaded holes are provided on the locking disc. The locking disc is connected to the adapter plate by screws, and the inner side surface of the locking disc abuts against the side wall of the adapter plate.

[0016] The beneficial effects of the present utility model are as follows: By arranging a slag cleaning component and a water spraying component on one side of the bridge frame, the slag cleaning component can efficiently intercept the floating slag, and the water spraying component can spray water in front of the slag cleaning baffle. Since a certain angle is formed between the slag cleaning baffle and the bridge frame, the nozzle can better push the floating slag towards the inner wall direction of the secondary sedimentation tank, which is conducive to the rapid collection of the floating slag in the slag discharge tank, ensuring the collection effect. At the same time, during the installation and use process, the position and angle of the baffle of the slag cleaning component can be adjusted. The overall operation is simple, and the main water pipe and nozzle of the water spraying component are conveniently installed, having good economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following further describes the present utility model in conjunction with the drawings and embodiments:

[0018] Figure 1 is the overall schematic diagram of the present utility model during use Figure 1 ;

[0019] Figure 2 is Figure 1 the top view schematic diagram of

[0020] Figure 3 is Figure 1 the front view schematic diagram of

[0021] Figure 4 is the overall schematic diagram of the present utility model during use Figure 2 ;

[0022] Figure 5 is Figure 1 the exploded structure schematic diagram of

[0023] Figure 6 is Figure 5 the installation structure schematic diagram of the bridge frame and each component of

[0024] Figure 7 is Figure 6 the installation structure schematic diagram of the bridge frame with the slag cleaning component and the water spraying component of

[0025] Figure 8 is Figure 7 the installation schematic diagram of the slag cleaning component and the water spraying component of

[0026] Figure 9 is Figure 8 the exploded structure schematic diagram of

[0027] Figure 10 is Figure 8 the enlarged schematic diagram at A of

[0028] Figure 11 is Figure 8 the enlarged schematic diagram at B of

[0029] Figure 12 is Figure 8 a partial structural schematic diagram of

[0030] Figure 13 is Figure 12 an explosion structure schematic Figure 1 ;

[0031] Figure 14 is Figure 12 an explosion structure schematic Figure 2 .

[0032] In the figure: secondary sedimentation tank 1; bridge frame 2; rotating shaft 201; walking plate 202; guardrail 203; supporting plate 204; first threaded hole 205; sludge scraping plate 3; driving assembly 4; box sleeve 401; driving wheel 402; slag cleaning assembly 5; baffle plate 501; slider 502; sliding sleeve 503; adjusting sleeve 504; locking sleeve 505; connecting rod 506; locking disc 507; first round rod 508; first ball head 509; counterbore 510; third threaded hole 511; first limiting hole 512; fourth threaded hole 513; ejector rod 514; disc 515; threaded column 516; second limiting hole 517; inserting rod 518; second round rod 519; second ball head 520; fifth threaded hole 521; water spraying assembly 6; main water pipe 601; spray head 602; mounting hole 603; threaded head 604; sealing cover 605; clamping sleeve 606; screw rod 607; top disc 608; elastic piece 609; locking nail 610; nut 611; water pump 7; adapter pipe 8; screw 9; adapter plate 10; chute 1001; second threaded hole 1002. Specific implementation manner

[0033] As Figures 1 - 5 shown in, a secondary sedimentation tank surface scum cleaning device includes a slag cleaning assembly 5 and a water spraying assembly 6 arranged on one side of the bridge frame 2. The slag cleaning assembly 5 includes a baffle plate 501, and one side of the baffle plate 501 close to the inner wall of the secondary sedimentation tank 1 is inclined towards the slag discharge groove. The water spraying assembly 6 includes a main water pipe 601, and a plurality of spray heads 602 are uniformly arranged on the main water pipe 601. The spray heads 602 are arranged towards the water surface in front of the baffle plate 501 and away from the bridge frame 2.

[0034] During use, during the rotation of the bridge frame 2, the water spraying assembly 6 can effectively clean the surface scum on the water surface and the scum between the baffle plate 501 and the bridge frame 2, avoiding the need for operators to clean on the pool surface and reducing potential safety hazards. The spray heads are pressurized spray heads, which can ensure the water spraying speed and effect. By maintaining an appropriate angle between the baffle plate 501 and the bridge frame 2, the scum can be pushed towards the slag discharge port by the impact of the water flow. Since the slag discharge port is arranged at a position close to the inner side wall of the secondary sedimentation tank, the slag removal speed is better during the overall operation.

[0035] In a preferred embodiment, the bridge 2 includes a walking plate 202, and a transfer plate 10 is provided on the outer side of the walking plate 202. The slag cleaning assembly 5 and the water spraying assembly 6 are connected to the bridge 2 through the transfer plate 10.

[0036] The transfer plate 10 serves as an installation base, which can reduce the space occupied by the bridge 2 itself. At the same time, the staff can conveniently and quickly adjust the nozzles and baffles on the walking plate 202, with high adjustment efficiency and ensuring the safety of the staff.

[0037] Such as Figures 6 - 7 In the figure, in a preferred embodiment, two guardrails 203 are symmetrically provided on the upper side of the walking plate 202. The walking plate 202 is connected to the secondary sedimentation tank 1 through two driving assemblies 4. A rotating shaft 201 is provided in the middle of the walking plate 202. The rotating shaft 201 is connected with a water pump 7 through a support plate 204. The water pump 7 is connected to the water spraying assembly 6 through a transfer pipe 8.

[0038] The bottom of the rotating shaft 201 extends deep into the bottom of the secondary sedimentation tank 1. A protective shell is also provided on the outer side of the rotating shaft 201. The water pump 7 pumps the water in the secondary sedimentation tank 1 to the water spraying assembly 6, with high reuse efficiency.

[0039] In a preferred embodiment, the driving assembly 4 includes a box sleeve 401 and a driving wheel 402. A first threaded hole 205 is provided through the walking plate 202. The box sleeve 401 is connected to the walking plate 202 through a screw 9. The screw 9 is arranged in the box sleeve 401 and the first threaded hole 205. A sludge scraping plate 3 is provided at the bottom of the bridge 2.

[0040] The driving wheel 402 can rotate around the circumference of the secondary sedimentation tank 1, thereby driving the bridge 2 to rotate. At this time, the sludge scraping plate 3 provided at the lower part of the bridge 2 scrapes the sludge at the bottom of the secondary sedimentation tank 1, with good cleaning effect. At the same time, the box sleeve 401 of the driving assembly 4 and the walking plate 202 are convenient to install and disassemble. When the driving wheel 402 has problems, the box sleeve 401 can be removed separately, making the overall maintenance more convenient.

[0041] Such as Figures 8 - 11 In the figure, in a preferred embodiment, a chute 1001 is provided through the middle of the transfer plate 10. A plurality of second threaded holes 1002 are provided through the upper side of the chute 1001. The main water pipe 601 is connected to the transfer plate 10 through a clamping sleeve 606. The clamping sleeve 606 is threadedly connected to the second threaded holes 1002. The baffle 501 is connected with a slider 502 through a lock sleeve 505, an adjusting sleeve 504 and a sliding sleeve 503. The slider 502 is slidably arranged in the chute 1001.

[0042] In a preferred embodiment, a plurality of mounting holes 603 are provided through the main water pipe 601. The nozzle 602 is inserted into the mounting holes 603. A threaded head 604 is provided on one side of the main water pipe 601. A sealing cover 605 is threadedly connected to the threaded head 604.

[0043] One side of the main water pipe 601 serves as the water inlet, and the other side is blocked by a sealing cover 605, which is more convenient to use. At the same time, the spray head 602 and the main water pipe 601 are connected by a threaded connection. When the spray head 602 is damaged or blocked, it can be easily removed and replaced, resulting in better use effect.

[0044] In a preferred embodiment, the clamping sleeve 606 includes a screw 607 and a top plate 608. The screw 607 is threadedly connected to the second threaded hole 1002. Two elastic pieces 609 are symmetrically arranged on the upper side of the top plate 608. A locking pin 610 passes through the upper sides of the two elastic pieces 609, and the elastic pieces 609 are connected by the locking pin 610 and a nut 611.

[0045] The top plate 608 of the clamping sleeve 606 supports on the adapter plate 10, serving as the overall force-bearing foundation. A clamping space is formed between the two elastic pieces 609. By adjusting the positions of the locking pin 610 and the nut 611, the two elastic pieces 609 are clamped, thereby fully clamping the main water pipe 601, and the overall installation effect is good.

[0046] As Figures 12 - 14 shown in, in a preferred embodiment, the baffle 501 is provided with a second round rod 519 and a second ball head 520. The slider 502 is provided with a first round rod 508 and a first ball head 509. The second ball head 520 is ball-joint connected to the locking sleeve 505. The locking sleeve 505 is threadedly connected to the adjusting sleeve 504. The adjusting sleeve 504 is rotatably arranged on the sliding sleeve 503, and the sliding sleeve 503 is ball-joint connected to the first ball head 509.

[0047] The slider 502 can adjust its position in the chute 1001. Preferably, three sliders 502 are provided. The three sliders 502 cooperate with each other. By changing the lengths of the locking sleeve 505, the adjusting sleeve 504, and the sliding sleeve 503, the angle and position of the baffle 501 are changed, and the fixation of the baffle 501 is more firm, the adjustment is more convenient, and the locking is stable.

[0048] In a preferred embodiment, sinking holes 510 and first limiting holes 512 are respectively provided on both sides of the sliding sleeve 503. The first ball head 509 is arranged in the first limiting hole 512. A third threaded hole 511 penetrates through the sinking hole 510. A top rod 514 and a disc 515 are provided on the upper side of the adjusting sleeve 504. The top rod 514 and the disc 515 are inserted into the sliding sleeve 503. A fourth threaded hole 513 is provided on the lower side of the adjusting sleeve 504. Threaded columns 516 and second limiting holes 517 are respectively provided on the upper side and the lower side of the locking sleeve 505. The second ball head 520 is located in the second limiting hole 517, and the threaded column 516 is located in the fourth threaded hole 513. An insertion rod 518 is threadedly connected in the third threaded hole 511, and the end of the insertion rod 518 abuts against the top rod 514.

[0049] By rotating the sliding sleeve 503, the position of the adjusting sleeve 504 is changed, that is, the position of the baffle 501 is changed. By adjusting the sliding sleeves 503 at different positions respectively, the baffle 501 is adjusted to a suitable position and angle, which is convenient for adjustment and has a better adjustment effect.

[0050] In the preferred embodiment, the top surface of the adjusting sleeve 504 abuts against the bottom surface of the sliding sleeve 503, the slider 502 is connected to the locking disk 507 through the connecting rod 506, the first round rod 508 is arranged on the locking disk 507, a plurality of fifth threaded holes 521 are provided on the locking disk 507, the locking disk 507 is connected to the adapter plate 10 through the screws 9, and the inner surface of the locking disk 507 abuts against the side wall of the adapter plate 10.

[0051] When adjusting, first fix the slider 502 on the side of the sliding sleeve 503 that needs to be adjusted on the adapter plate 10 through the screw 9. The end face of the screw 9 abuts against the side wall of the adapter plate 10, thereby ensuring that the overall force is sufficient and the locking effect is good. When the position of the slider 502 needs to be changed, loosen the screw 9, and then move the slider 502 to a suitable position and then fix it, which is convenient for the subsequent coordination between multiple sliding sleeves 503, completes the change of the distance between the adjustment sleeve 504 and each sliding sleeve 503, firmly supports the baffle 501, and is easy to operate.

[0052] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A device for cleaning scum on the surface of a secondary sedimentation tank, characterized in that: The invention comprises a slag cleaning component (5) and a water spray component (6) arranged on one side of a bridge frame (2), wherein the slag cleaning component (5) comprises a baffle (501), wherein a side of the baffle (501) close to the inner wall of the secondary sedimentation tank (1) is inclined toward a side of a slag discharge trough, and the water spray component (6) comprises a main water pipe (601), wherein a plurality of spray heads (602) are evenly arranged on the main water pipe (601), and the spray heads (602) are arranged toward a water surface in front of the baffle (501) and away from the bridge frame (2).

2. The device for cleaning scum on the surface of the secondary sedimentation tank according to claim 1 is characterized in that: The bridge frame (2) comprises a walking plate (202), an adapter plate (10) is provided on the outer side of the walking plate (202), and the slag cleaning component (5) and the water spraying component (6) are connected to the bridge frame (2) via the adapter plate (10).

3. The scum cleaning device on the surface of the secondary sedimentation tank according to claim 2 is characterized in that: Two guardrails (203) are symmetrically arranged on the upper side of the board (202); the walking board (202) is connected to the secondary sedimentation tank (1) via two driving assemblies (4); a rotating shaft (201) is arranged in the middle of the walking board (202); the rotating shaft (201) is connected to a water pump (7) via a supporting plate (204); and the water pump (7) is connected to the water spray assembly (6) via a transfer pipe (8).

4. The device for cleaning scum on the surface of the secondary sedimentation tank according to claim 3 is characterized in that: The driving assembly (4) comprises a casing (401) and a driving wheel (402); a first threaded hole (205) is provided through the walking plate (202); the casing (401) is connected to the walking plate (202) via a screw (9); the screw (9) is arranged in the casing (401) and the first threaded hole (205); and a mud scraper (3) is provided at the bottom of the bridge frame (2).

5. The device for cleaning scum on the surface of the secondary sedimentation tank according to claim 2 is characterized in that: A slide groove (1001) is provided through the middle of the adapter plate (10), and a plurality of second threaded holes (1002) are provided through the upper side of the slide groove (1001). The main water pipe (601) is connected to the adapter plate (10) via a clamping sleeve (606), and the clamping sleeve (606) and the second threaded holes (1002) are threadedly connected. The baffle plate (501) is connected to a slider (502) via a locking sleeve (505), an adjusting sleeve (504) and a sliding sleeve (503), and the slider (502) is slidably arranged in the slide groove (1001).

6. The device for cleaning scum on the surface of the secondary sedimentation tank according to claim 5 is characterized in that: A plurality of mounting holes (603) are provided through the main water pipe (601), and the nozzles (602) are inserted into the mounting holes (603). A threaded head (604) is provided on one side of the main water pipe (601), and a sealing cover (605) is threadedly connected to the threaded head (604).

7. The device for cleaning scum on the surface of the secondary sedimentation tank according to claim 5 is characterized in that: The clamping sleeve (606) comprises a screw rod (607) and a top plate (608), wherein the screw rod (607) is threadedly connected to the second threaded hole (1002), and two spring plates (609) are symmetrically arranged on the upper side of the top plate (608), and locking pins (610) are passed through the upper sides of the two spring plates (609), and the spring plates (609) are connected via the locking pins (610) and nuts (611).

8. The device for cleaning scum on the surface of the secondary sedimentation tank according to claim 5 is characterized in that: The baffle (501) is provided with a second round rod (519) and a second ball head (520), the slider (502) is provided with a first round rod (508) and a first ball head (509), the second ball head (520) and the locking sleeve (505) are connected by a ball joint, the locking sleeve (505) and the adjustment sleeve (504) are threadedly connected, the adjustment sleeve (504) is rotatably arranged on the sliding sleeve (503), and the sliding sleeve (503) and the first ball head (509) are connected by a ball joint.

9. The device for cleaning scum on the surface of the secondary sedimentation tank according to claim 8 is characterized in that: The sliding sleeve (503) is provided with a countersunk hole (510) and a first limiting hole (512) on both sides, the first ball head (509) is arranged in the first limiting hole (512), the countersunk hole (510) is penetrated by a third threaded hole (511), the upper side of the adjusting sleeve (504) is provided with a push rod (514) and a disk (515), the push rod (514) and the disk (515) are inserted in the sliding sleeve (503), the lower side of the adjusting sleeve (504) is provided with a fourth threaded hole (513), the upper side and the lower side of the locking sleeve (505) are provided with a threaded column (516) and a second limiting hole (517), the second ball head (520) is located in the second limiting hole (517), the threaded column (516) is located in the fourth threaded hole (513), the third threaded hole (511) is internally threadedly connected with an insert rod (518), and the end of the insert rod (518) is against the push rod (514).

10. The device for cleaning scum on the surface of the secondary sedimentation tank according to claim 9, characterized in that: The top surface of the adjustment sleeve (504) abuts against the bottom surface of the sliding sleeve (503); the sliding block (502) is connected to a locking disk (507) via a connecting rod (506); a first round rod (508) is arranged on the locking disk (507); a plurality of fifth threaded holes (521) are arranged on the locking disk (507); the locking disk (507) is connected to the adapter plate (10) via screws (9); and the inner side surface of the locking disk (507) abuts against the side wall of the adapter plate (10).

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