CN220237852U - Device for cleaning scum on water surface of secondary sedimentation tank - Google Patents
Device for cleaning scum on water surface of secondary sedimentation tank Download PDFInfo
- Publication number
- CN220237852U CN220237852U CN202321774713.4U CN202321774713U CN220237852U CN 220237852 U CN220237852 U CN 220237852U CN 202321774713 U CN202321774713 U CN 202321774713U CN 220237852 U CN220237852 U CN 220237852U
- Authority
- CN
- China
- Prior art keywords
- scum
- slag
- connecting plate
- pushing screw
- mud scraper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000004062 sedimentation Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 238000004140 cleaning Methods 0.000 title claims abstract description 16
- 239000002893 slag Substances 0.000 claims abstract description 60
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 1
- 235000017491 Bambusa tulda Nutrition 0.000 claims 1
- 241001330002 Bambuseae Species 0.000 claims 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 1
- 239000011425 bamboo Substances 0.000 claims 1
- 239000010802 sludge Substances 0.000 abstract description 17
- 238000007790 scraping Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 2
- 239000010865 sewage Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Landscapes
- Removal Of Floating Material (AREA)
Abstract
The utility model discloses a secondary sedimentation tank water surface scum cleaning device, wherein a working bridge of a mud scraper is provided with a scum pushing motor and a second scum baffle; the front side of the second scum baffle is provided with a scum pushing screw in transmission connection with a scum pushing motor. The working bridge of the mud scraper is also provided with a scum storage box with an upper port higher than the liquid level line. The outer end of the slag pushing screw is opposite to the slag inlet of the slag storage box. The slag discharging pump is connected with the central cylinder through a scum conveying pipe. The utility model forcedly pushes the scum on the liquid level of the secondary sedimentation tank into the scum storage tank through the scum pushing screw, and sends the scum into the central sludge discharge pipe through the scum discharging pump and the scum conveying pipe. The slag pushing screw as a slag cleaning mechanism rotates along with the working bridge, so that the slag collecting range is wider, and the treatment effect is better. Can effectively solve the problem that the scum is difficult to be cleaned in time due to the ineffective rotation of the scum scraping plate.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment equipment, and relates to a secondary sedimentation tank water surface scum cleaning device.
Background
The secondary sedimentation tank is a place for separating mud from water after biochemical treatment in sewage treatment. In the secondary sedimentation tank, clear liquid is discharged upwards through an effluent weir, and sludge naturally subsides under the action of gravity. Because of factors such as denitrification and sludge decay, a layer of scum is inevitably accumulated on the surface of the secondary sedimentation tank, and if the scum is not cleaned in time, the scum floats into an effluent weir along with water, so that indexes such as effluent SS, CODcr, total nitrogen or total phosphorus are out of standard, and the normal operation of a sewage treatment system is not facilitated.
As a secondary sedimentation tank water surface scum cleaning device in the prior art, a scum scraping plate is arranged below a working bridge, a slag collecting bucket is arranged on the tank wall of the secondary sedimentation tank, and scum is scraped into the slag collecting bucket by the scum scraping plate in rotation. In actual use, the scum collected by the scum scraping plate only has a small part entering the slag collecting hopper and a large part rotating with the scum scraping plate in an ineffective way, so that the scum is difficult to clean in time. Scum which is not cleaned in time can be scattered and sunk due to decay and the like, and enters the water outlet weir along with water again.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a secondary sedimentation tank water surface scum cleaning device which can push scum gathered by a scum scraping plate into a scum storage box through forced action and timely discharge the scum.
The technical scheme of the utility model is as follows:
the device comprises a sludge scraper working bridge arranged above the secondary sedimentation tank, wherein the middle part of the sludge scraper working bridge is connected with a sludge discharge pipe positioned at the central position inside the secondary sedimentation tank, a central cylinder with an upper port higher than a liquid level line of the secondary sedimentation tank is arranged on the sludge discharge pipe, the sludge scraper working bridge is connected with a second scum baffle, and a slag pushing motor is also arranged on the sludge scraper working bridge; the cleaning device also comprises a slag pushing screw which is arranged at the front side of the second scum baffle and is in transmission connection with the slag pushing motor; the working bridge of the mud scraper is also provided with a scum storage tank with an upper port higher than the liquid level line, and the inner side of the scum storage tank is provided with a scum inlet; the outer end of the slag pushing screw is opposite to the slag inlet; the cleaning device further comprises a slag discharging pump, and the slag discharging pump is connected with the central cylinder through a scum conveying pipe.
Preferably, the working bridge of the mud scraper is provided with an inner connecting plate and an outer connecting plate for hanging the slag pushing screw; the slag pushing screw comprises a cylindrical main body part with a screw guide piece, and connecting shafts are respectively arranged at two ends of the cylindrical main body part; the connecting shaft is connected with the connecting plate in a mutually rotating way through a bearing.
Further preferably, the connection plate comprises an upper connection plate and a lower connection plate; the upper end of the upper connecting plate is fixed with the working bridge of the mud scraper, and the connecting shaft of the slag pushing screw is arranged on the lower connecting plate through a bearing; wherein the lower connecting plate is provided with a longitudinal adjusting hole in the form of a through hole, and the upper connecting plate is provided with a bolt hole; the upper connecting plate and the lower connecting plate are mutually fixed through adjusting bolts penetrating through the longitudinal adjusting holes and the bolt holes.
The utility model has the positive effects that:
the first, the utility model forces the scum of the liquid level of the secondary sedimentation tank into the scum storage box through the scum pushing screw, and sends the scum into the central cylinder through the scum pump and the scum conveying pipe. The slag pushing screw as a slag cleaning mechanism rotates along with the working bridge, so that the slag collecting range is wider, and the treatment effect is better. Can effectively solve the problem that the scum is difficult to be cleaned in time due to the ineffective rotation of the scum scraping plate.
In the second and the optimized technical proposal of the utility model, the connecting plate used for connecting the slag pushing screw is an adjustable connecting plate. The height of the lower connecting plate is adjusted up and down along the longitudinal adjusting hole, so that the purpose of fine adjustment of the height of the slag pushing screw can be achieved, and the slag pushing screw is suitable for the liquid level in the slightly fluctuating pool.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present utility model.
Fig. 2 is a schematic structural view of an adjustable connection plate according to an embodiment of the present utility model.
Fig. 3 is a schematic side view of an adjustable connection plate in accordance with an embodiment of the present utility model.
In the figure, 1, a secondary sedimentation tank, 2, a water outlet weir, 3, a sludge scraper working bridge, 4, a first scum baffle, 5, a scum conveying pipe, 6, a connecting plate, 6-1, a lower connecting plate, 6-2, an upper connecting plate, 6-3, an adjusting bolt, 6-4, a longitudinal adjusting hole, 7, a lifting rod, 8, a scum pushing motor, 9, a scum pushing transmission mechanism, 10, a liquid level line, 11, a central cylinder, 12, a sludge discharge pipe, 13, a scum pushing screw, 14, a second scum baffle, 15, a scum storage tank, 16 and a scum pump.
Detailed Description
The utility model will now be described in detail with reference to the drawings and examples.
Referring to fig. 1, the embodiment of the secondary sedimentation tank water surface scum cleaning device comprises a sludge scraper working bridge 3 arranged above a secondary sedimentation tank 1, wherein the middle part of the sludge scraper working bridge 3 is connected with a sludge discharge pipe 12 positioned at the central position inside the secondary sedimentation tank 1, and a central cylinder 11 with an upper port higher than a liquid level line 10 of the secondary sedimentation tank 1 is arranged on the sludge discharge pipe 12. The scraper working bridge 3 is connected with a second scum baffle 14 through a lifting rod 7. The lower part of the second scum baffle 14 is immersed below the liquid level line 10 in use, the second scum baffle 14 rotates with the scraper working bridge 3 for gathering the scum and preventing scum from escaping when the scum pushing screw 13 rotates to push the scum.
The sludge scraper working bridge 3 is also provided with a slag pushing motor 8. The embodiment also comprises a slag pushing screw 13 which is arranged on the front side (the front side refers to the front side in the rotation direction) of the second slag baffle 14, is close to the side surface of the second slag baffle 14 and is in transmission connection with the slag pushing motor 8. The slag pushing motor 8 provides rotary power for the slag pushing screw 13 through the slag pushing transmission mechanism 9. The transmission 9 is preferably a chain sprocket transmission. The chain and sprocket transmission mechanism comprises a driven sprocket arranged on the slag pushing screw 13, a driving sprocket connected with the slag pushing motor 8 and a chain connected between the driving sprocket and the driven sprocket.
The working bridge 3 of the mud scraper is also provided with a scum storage tank 15 with an upper port higher than the liquid level line 10. A slag inlet is formed in the inner side of the slag storage tank 15. The outer end of the slag pushing screw 13 (i.e. the end far away from the sludge discharge pipe 12) is opposite to the slag inlet. The scum pushed to the outer end by the slag pushing screw 13 enters the scum storage tank 15 through the slag inlet, and meanwhile, part of water in the secondary sedimentation tank 1 enters the scum storage tank 15 together with the slag, so that the mobility of the scum is improved, and the scum is conveniently pumped out by a pump pipe system. A slag discharge pump 16 is installed in the scum storage tank 15. The slag discharge pump 16 is connected to the central cylinder 11 through a slag conveying pipe 5. The dross transportation pipe 5 is used to discharge dross from the dross storage tank 15 to the central part 11.
And an effluent weir 2 is further arranged in the secondary sedimentation tank 1. The scum tank 15 is located inside the weir 2. The working bridge 3 of the mud scraper is also provided with a first scum baffle 4 with the lower end lower than the upper port of the water outlet weir 2.
The working bridge 3 of the mud scraper is also provided with an inner connecting plate 6 and an outer connecting plate 6 for hanging the slag pushing screw 13. The slag pushing screw 13 comprises a cylindrical main body part with a screw guide piece, and connecting shafts are respectively arranged at two ends of the cylindrical main body part and are in mutual rotary connection with the connecting plate 6 through bearings. The driven sprocket of the transmission 9 is mounted on the inside connecting shaft. In use the dross pushing screw 13 pushes the dross into the dross storage box 15 by rotation.
In another embodiment of the present utility model, the connection plate 6 is an adjustable connection plate. The adjustable connection plates include an upper connection plate 6-2 and a lower connection plate 6-1 in the form of iron plates. The upper end of the upper connecting plate 6-2 is connected with the scraper
The mud machine working bridge 3 is fixed, and the connecting shaft of the slag pushing screw 13 is arranged on the lower connecting plate 6-1 through a bearing. Wherein the lower connecting plate 6-1 is provided with a longitudinal adjusting hole 6-4 in the form of a through hole, and the upper connecting plate 6-2 is provided with a bolt hole. The upper and lower connection plates 6-2 and 6-1 are fixed to each other by an adjusting bolt 6-3 passing through the longitudinal adjusting hole 6-4 and the upper and lower bolt holes, respectively. The height of the lower connecting plate 6-1 is adjusted up and down along the longitudinal adjusting hole 6-4 by adjusting the mutual positions of the upper connecting plate 6-2 and the lower connecting plate 6-1 in the height direction, specifically, after the adjusting bolt 6-3 is loosened, the purpose of fine adjustment of the height of the slag pushing screw 13 is achieved.
Further, a liquid level floating ball as a control mechanism is arranged in the scum storage tank 15. When the liquid level in the scum storage tank 15 reaches the set height, the liquid level floating ball acts and sends out a signal to control the starting of the scum pump 16.
Claims (3)
1. The utility model provides a two heavy pond surface of water dross cleaning device, is including installing mud scraper work bridge (3) in two heavy pond (1) top, mud scraper work bridge (3) middle part is connected with and is located mud pipe (12) of the inside central point of two heavy ponds (1), install central section of thick bamboo (11) that go up port and be higher than liquid level line (10) of two heavy ponds (1) on mud pipe (12), mud scraper work bridge (3) are connected with second dross baffle (14), its characterized in that: a slag pushing motor (8) is also arranged on the working bridge (3) of the mud scraper; the cleaning device also comprises a slag pushing screw (13) which is arranged at the front side of the second scum baffle plate (14) and is in transmission connection with the slag pushing motor (8); a scum storage tank (15) with an upper port higher than the liquid level line (10) is further arranged on the working bridge (3) of the mud scraper, and a scum inlet is formed in the inner side of the scum storage tank (15); the outer end of the slag pushing screw (13) is opposite to the slag inlet; the cleaning device further comprises a slag discharging pump (16), and the slag discharging pump (16) is connected with the central cylinder (11) through a scum conveying pipe (5).
2. The secondary sedimentation tank water surface scum cleaning device as set forth in claim 1, wherein: the working bridge (3) of the mud scraper is provided with an inner connecting plate and an outer connecting plate (6) for hanging the slag pushing screw (13); the slag pushing screw (13) comprises a cylindrical main body part with a screw guide piece, and connecting shafts are respectively arranged at two ends of the cylindrical main body part; the connecting shaft is connected with the connecting plate (6) in a mutually rotating way through a bearing.
3. The secondary sedimentation tank water surface scum cleaning device as set forth in claim 2, wherein: the connecting plate (6) comprises an upper connecting plate (6-2) and a lower connecting plate (6-1); the upper end of the upper connecting plate (6-2) is fixed with the working bridge (3) of the mud scraper, and the connecting shaft of the slag pushing screw (13) is arranged on the lower connecting plate (6-1) through a bearing; wherein the lower connecting plate (6-1) is provided with a longitudinal adjusting hole (6-4) in the form of a through hole, and the upper connecting plate (6-2) is provided with a bolt hole; the upper connecting plate (6-2) and the lower connecting plate (6-1) are mutually fixed through adjusting bolts (6-3) penetrating through the longitudinal adjusting holes (6-4) and the bolt holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321774713.4U CN220237852U (en) | 2023-07-07 | 2023-07-07 | Device for cleaning scum on water surface of secondary sedimentation tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321774713.4U CN220237852U (en) | 2023-07-07 | 2023-07-07 | Device for cleaning scum on water surface of secondary sedimentation tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220237852U true CN220237852U (en) | 2023-12-26 |
Family
ID=89269652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321774713.4U Active CN220237852U (en) | 2023-07-07 | 2023-07-07 | Device for cleaning scum on water surface of secondary sedimentation tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220237852U (en) |
-
2023
- 2023-07-07 CN CN202321774713.4U patent/CN220237852U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |