CN216320148U - Vertical flow type secondary sedimentation tank air purging and deslagging device - Google Patents
Vertical flow type secondary sedimentation tank air purging and deslagging device Download PDFInfo
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- CN216320148U CN216320148U CN202122695312.7U CN202122695312U CN216320148U CN 216320148 U CN216320148 U CN 216320148U CN 202122695312 U CN202122695312 U CN 202122695312U CN 216320148 U CN216320148 U CN 216320148U
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Abstract
The utility model belongs to the field of sewage treatment, and particularly relates to an air purging and deslagging device for a vertical flow type secondary sedimentation tank, wherein the vertical flow type secondary sedimentation tank comprises a central cylinder, a water outlet weir and a scum baffle, and the air purging and deslagging device comprises a blower, an air purging pipe, a slag collecting tank and a deslagging pipe; the main body of the air purging pipe is arranged on the inner side of the scum baffle, the air purging pipe is evenly provided with a plurality of air outlets, and the air outlets face to the center of the vertical flow type secondary sedimentation tank; the outlet of the blower is connected with the air inlet of the air purging pipe; the slag collecting groove is horizontally arranged at the upper end of the outer side of the central cylinder of the vertical secondary sedimentation tank, and is positioned at the lower part of the slag layer; the scum on the water surface is blown to the scum collecting tank at the center of the pool by the airflow blown by the blower and then is discharged by the scum discharging pipe, so that the quality of discharged water can be improved, manual operation is reduced, the safety is improved, and time and labor are saved; and the air on the water surface is blown to remove slag, so that the interference on the precipitated water is small, and the precipitation effect is stable.
Description
Technical Field
The utility model relates to the field of sewage treatment, in particular to an air blowing and deslagging device for a vertical flow type secondary sedimentation tank.
Background
The secondary sedimentation tank has the functions of separating sludge and clarifying mixed liquid, and is commonly used in a circular radial flow sedimentation tank, a multi-bucket horizontal flow sedimentation tank and a vertical flow sedimentation tank, wherein the vertical flow secondary sedimentation tank is suitable for sewage projects with small water volume, and the diameter of the tank body is not more than 10 m. Compared with a radial flow sedimentation tank which adopts a mechanical mud discharging and slag scraping mode, the sedimentation tank generally adopts hydraulic mud discharging, a scum baffle is arranged at the water outlet weir, and scum is periodically and manually cleaned. The mode has the disadvantages that the discharged water is easy to carry floating slag to influence the quality of the discharged water, the sensory effect of a sewage plant is influenced when the floating slag on the top of the pool is not cleaned in time, the manual cleaning difficulty is large, the method is unsafe, time and labor are wasted, and the like.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the background art, the utility model provides an air blowing slag-removing device for a vertical flow type secondary sedimentation tank.
The utility model provides an air blowing slag-removing device for a vertical flow type secondary sedimentation tank, which adopts the following technical scheme: an air purging deslagging device for a vertical flow type secondary sedimentation tank is disclosed, wherein the vertical flow type secondary sedimentation tank comprises a central cylinder, an effluent weir and a scum baffle, the central cylinder is vertically arranged in the center of the vertical flow type secondary sedimentation tank, the effluent weir surrounds the upper part of an inner ring of the vertical flow type secondary sedimentation tank, and the scum baffle is arranged on the inner side of the effluent weir;
the air blowing and deslagging device comprises a blower, an air blowing pipe, a slag collecting groove and a deslagging pipe; the air purging pipe is positioned on the inner side of the scum baffle and is uniformly provided with a plurality of air outlets, and the air outlets face the center of the vertical secondary sedimentation tank;
the outlet of the blower is connected with the air inlet of the air purging pipe; the slag collecting groove is horizontally arranged at the upper end of the outer side of the central cylinder of the vertical secondary sedimentation tank, and is positioned at the lower part of the slag layer; the slag collecting groove comprises a bottom plate; one end of the slag discharge pipe is communicated with the slag collecting groove, and the other end of the slag discharge pipe is communicated with a scum pond outside the vertical flow type secondary sedimentation tank.
Through adopting above-mentioned technical scheme, can blow the dross that smugglies secretly in going out the water to collection sediment groove, the dross is arranged to the dross pond through the scum pipe, and labour saving and time saving reduces the cost of labor, still improves the security, sweeps the sediment through the air on the surface of water, reduces the interference to precipitating out the water, and the precipitation effect is more stable.
Preferably, the slag collecting groove is of an annular groove structure, and an inner ring of the annular groove is attached to the outer wall of the central cylinder and fixedly connected with the outer wall of the central cylinder through bolts.
Preferably, the number of bolts is equal to or greater than four.
Preferably, the blower is used for aeration of the aerobic tank. The air blower for aeration of the aerobic tank is used as power, the air blower does not need to be additionally arranged, and no additional electromechanical equipment is arranged, so that the cost is lower.
In summary, the utility model has the following beneficial technical effects:
1. the scum on the water surface is blown to the scum collecting tank by the air flow blown by the blower, and the scum is discharged out of the system in time, so that the effluent index reaches the standard, the adverse sensory effect caused by the scum entrained by the effluent is solved, the labor cost is reduced, the safety is improved, and time and labor are saved;
2. the external air blower is used for aeration of the aerobic tank, the air blower does not need to be additionally arranged, no additional electromechanical equipment is invested, power consumption is reduced, periodic manual slag removal is avoided, and the cost is low.
Drawings
FIG. 1 is a schematic view of an air-purging slag-removing device for a vertical secondary sedimentation tank provided in example 1;
FIG. 2 is a schematic view of an air purge tube and a dross baffle;
FIG. 3 is a top view of the central drum and the slag collection trough;
FIG. 4 is the top view of the air-sweeping slag extractor of the vertical secondary sedimentation tank provided in example 1,
FIG. 5 is a perspective view of a scum baffle and air purge tube as in example 1;
fig. 6 is a perspective view of a scum baffle and air purge tube as in example 2.
Description of reference numerals: 11. a central barrel; 12. a reflective plate; 13. a sludge hopper; 14. an effluent weir; 15. a scum baffle; 16. a water inlet pipe; 17. a water outlet groove; 18. a water outlet pipe, 19 and a sludge discharge pipe;
2. an air purge tube;
3. a slag collecting groove 4 and a slag discharge pipe.
Detailed Description
The utility model is described in further detail below with reference to figures 1-6.
Embodiment 1 discloses a sediment device is blown by air to vertical flow formula secondary sedimentation pond. Reference is made to fig. 1-5. An air blowing and deslagging device for a vertical flow type secondary sedimentation tank is shown in figures 1, 3 and 5 and comprises a vertical flow type secondary sedimentation tank (the cross section of the vertical flow type secondary sedimentation tank is circular), a blower, an air blowing pipe 2, a slag collecting groove 3 and a deslagging pipe 4; the vertical flow type secondary sedimentation tank comprises a central cylinder 11, an effluent weir 14 and a scum baffle 15 (the cross section is circular), wherein the central cylinder 11 is vertically arranged in the center of the vertical flow type secondary sedimentation tank, the effluent weir 14 surrounds the inner ring at the upper part of the tank edge, and the scum baffle 15 is positioned on the inner side of the effluent weir 14.
As shown in fig. 1 and 2, the air purge pipe 2 is arranged inside the scum baffle 15, the outlet is arranged inside the scum baffle 15, and the outlet air faces the center of the pool; the blower is connected with an air inlet of the air purging pipe 2 (the side of the air purging pipe 2 far away from the air inlet is in a plugging shape); the slag collecting groove 3 is arranged at the upper end of the outer side of the secondary sedimentation tank central cylinder 11 in a surrounding way, and the upper edge of the slag collecting groove 3 is higher than the water surface; the slag discharging pipe 4 is connected with the slag collecting groove 3.
As shown in fig. 1 and 4, the vertical flow type secondary sedimentation tank may further include a reflection plate 12, a sludge hopper 13, a water inlet pipe 16, a water outlet tank 17, a water outlet pipe 18 and a sludge discharge pipe 19, the reflection plate 12 is positioned under the central cylinder 11 in a tapered shape, the water inlet pipe 16 leads to the vertical flow type secondary sedimentation tank from one side and is connected with the central cylinder 11, the water outlet tank 17 is positioned outside the water outlet weir 14, the water outlet pipe 18 is connected with the water outlet tank 17, the sludge hopper 13 is positioned under the reflection plate 12, the sludge discharge pipe 19 is positioned on one side of the tank and is close to the tank wall, and the inlet is connected with the sludge hopper 13; the air purging pipe is arranged in the scum baffle 15 in a surrounding way, and the air outlets all face to the center of the vertical flow type secondary sedimentation tank.
As shown in fig. 3, the center barrel 11 and the slag chute 3 are fixed by bolts. The bolt can be a stainless steel bolt. The number of the bolts is 6.
The blower is used for aerating the aerobic tank. The aerobic tank aerates the tank through the air blower, aerobic respiration is carried out on activated sludge, organic matters are decomposed into inorganic matters, the treated sewage enters the secondary sedimentation tank, sludge separation is carried out in the secondary sedimentation tank, mixed liquid is clarified, the aerobic tank and the secondary sedimentation tank are blown and discharged by the air blower, the air blower is not needed, and cost can be saved.
Example 2
The difference between this example and example 1 is: the cross section of the vertical flow type secondary sedimentation tank is square, and the cross section of the scum baffle 15 is also square, as shown in figure 6.
The working mode of the air blowing slag-removing device of the vertical flow type secondary sedimentation tank provided by the embodiment of the utility model is as follows: wastewater enters a flow direction vertical flow type secondary sedimentation tank from a water inlet pipe 16, sludge separation is carried out in the vertical flow type secondary sedimentation tank, the wastewater flows into a central cylinder 11, the wastewater vertically flows, passes through a reflecting plate 12, is uniformly distributed in the tank, slowly rises along the whole water passing section, and is settled and enters a conical sludge hopper 13 at the bottom of the tank and is discharged through a sludge discharge pipe 18; the height of water rises continuously, a scum baffle 15 is arranged in front of the water outlet weir 14 to intercept scum, the air blower blows air flow, the scum on the water surface is blown to the central part of the pool and is concentrated in the scum collecting tank 3 through the air blowing pipe 2, and the scum in the scum collecting tank 3 is discharged to the scum pool through the scum discharging pipe 4, so that the treatment of sludge and scum in the system is realized.
The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.
Claims (4)
1. An air purging deslagging device for a vertical flow type secondary sedimentation tank comprises a central cylinder (11), an effluent weir (14) and a scum baffle (15), wherein the central cylinder (11) is vertically arranged in the center of the vertical flow type secondary sedimentation tank, the effluent weir (14) surrounds the upper part of an inner ring of the vertical flow type secondary sedimentation tank, and the scum baffle (15) is arranged on the inner side of the effluent weir (14); the method is characterized in that:
the air blowing and deslagging device comprises a blower, an air blowing pipe (2), a slag collecting groove (3) and a deslagging pipe (4); the air purging pipe (2) is positioned on the inner side of the scum baffle (15), the air purging pipe (2) is uniformly provided with a plurality of air outlets, and the air outlets face to the center of the vertical flow type secondary sedimentation tank;
the outlet of the blower is connected with the air inlet of the air purging pipe (2); the slag collecting groove (3) is horizontally arranged at the upper end of the outer side of the central cylinder (11) of the vertical secondary sedimentation tank, and the slag collecting groove (3) is positioned at the lower part of a slag layer; the slag collecting groove (3) comprises a bottom plate; one end of the slag discharge pipe (4) is communicated with the slag collecting groove (3), and the other end is communicated with a scum pond outside the vertical flow type secondary sedimentation tank.
2. The vertical flow type secondary sedimentation tank air purging slag discharging device according to claim 1, characterized in that: the slag collecting groove (3) is of an annular groove structure, and the inner ring of the annular groove is attached to the outer wall of the central cylinder (11) and fixedly connected with the outer wall through bolts.
3. The vertical flow type secondary sedimentation tank air purging slag discharging device according to claim 2, characterized in that: the number of the bolts is more than or equal to four.
4. The vertical flow type secondary sedimentation tank air purging slag discharging device according to claim 1, characterized in that: the blower is used for aeration of the aerobic tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122695312.7U CN216320148U (en) | 2021-11-05 | 2021-11-05 | Vertical flow type secondary sedimentation tank air purging and deslagging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122695312.7U CN216320148U (en) | 2021-11-05 | 2021-11-05 | Vertical flow type secondary sedimentation tank air purging and deslagging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216320148U true CN216320148U (en) | 2022-04-19 |
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ID=81134656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122695312.7U Active CN216320148U (en) | 2021-11-05 | 2021-11-05 | Vertical flow type secondary sedimentation tank air purging and deslagging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216320148U (en) |
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2021
- 2021-11-05 CN CN202122695312.7U patent/CN216320148U/en active Active
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