CN213031923U - Sedimentation tank of water-saving tertiary sediment mud - Google Patents
Sedimentation tank of water-saving tertiary sediment mud Download PDFInfo
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- CN213031923U CN213031923U CN202020977538.9U CN202020977538U CN213031923U CN 213031923 U CN213031923 U CN 213031923U CN 202020977538 U CN202020977538 U CN 202020977538U CN 213031923 U CN213031923 U CN 213031923U
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Abstract
The utility model discloses a sedimentation tank of water-saving tertiary sediment mud, including buffer, sludge sedimentation stirring district, second sediment buffer and clear water district of intaking, the buffer of intaking includes water inlet, overflow weir and fender stream wall, sludge sedimentation stirring district includes first settling zone, mud mixing stirrer, sludge pit and mud sludge pump, the second deposits the buffer and includes that high-order second grade deposits barricade and low level tertiary sediment barricade, the inside of second sediment buffer is provided with the second and deposits the district, clear water district includes clear water corridor, clear water pit and clear water backwash pump. The utility model discloses novel structure, the large capacity is realized to the low capacity sludge settling pond and the throughput is greatly put in, prevents that the sedimentation tank row mud is obstructed, realizes that the clear water is retrieved, and the water intaking amount is practiced thrift by a wide margin, realizes even, high concentration mud row to the sludge impoundment, improves follow-up sludge dewaterer work efficiency, has very high practical value and spreading value.
Description
Technical Field
The utility model relates to a sedimentation tank technical field particularly, relates to a sedimentation tank of water-saving tertiary precipitated mud.
Background
The sludge settling tank (also called secondary settling tank) is used for secondary settling reaction, the settling tank, the air scrubbing filter and other raw water pretreatment systems to discharge a large amount of muddy water. The water inlet buffer zone comprises a water inlet, an overflow weir and a flow blocking wall; the sludge settling zone comprises a first settling zone, a second settling zone, a sludge pit and a sludge discharge pump; the clear water area comprises a clear water area, a clear water pit and a clear water reflux pump. After mud water carries out the secondary sedimentation through sludge settling tank, clear water recycle once more produces mud and passes through the mud dredge pump and carry to sludge treatment system, and this sludge settling tank design sludge treatment volume is less, and has following shortcoming: in the sedimentation process of the muddy water in the sedimentation tank, a large amount of mud is deposited in three sedimentation areas and cannot be timely conveyed out through a mud pump, so that the mud level in the sedimentation tank is higher and higher due to the accumulation of the mud in the day and the month, the volume of the mud sedimentation tank is reduced, the sludge treatment capacity is further reduced, and finally the entered muddy water overflows outwards due to the small volume and the regional environment is seriously damaged; the sludge cannot automatically flow to the sludge pit in time, so that the sludge output ratio of the sludge pump is reduced, the treatment efficiency of a subsequent sludge treatment system is reduced, and the wastewater treatment pressure is further increased; when mud water flows through each settling area in the original sludge settling tank, solid mud cannot be effectively settled, a large amount of mud residues are still carried in the mud water after the mud water enters the clear water area, and the clear water recovery rate is low while the mud level in the clear water area is increased. In view of the related technical problems, no effective solution has been proposed at present.
SUMMERY OF THE UTILITY MODEL
To the problem among the correlation technique, the utility model provides a sedimentation tank of water-saving tertiary sediment mud to overcome the above-mentioned technical problem that current correlation technique exists.
The technical scheme of the utility model is realized like this:
a sedimentation tank for water-saving three-level precipitated sludge comprises a water inlet buffer zone, a sludge precipitation stirring zone, a second precipitation buffer zone and a clear water zone, wherein the water inlet buffer zone comprises a water inlet 1, an overflow weir 2 and a flow stopping wall 3, the sludge precipitation stirring zone comprises a first precipitation zone 4, a sludge mixing stirrer 13, a sludge pit 10 and a sludge discharge pump 8, the sludge mixing stirrer 13 is fixedly arranged on a guide rail 20 to move up and down, the second precipitation buffer zone comprises a high-level two-level precipitation retaining wall 11 and a low-level three-level precipitation retaining wall 12, the second precipitation buffer zone is a surrounded area of the high-level two-level precipitation retaining wall 11 and the low-level three-level precipitation retaining wall 12, the second precipitation buffer zone is internally provided with a second precipitation zone 5, the inner side of the low-level three-level precipitation retaining wall 12 is provided with a second precipitation zone high-level zone, the inner side of the high-level two-level precipitation retaining wall 11 is provided with a second precipitation zone low-level zone, the inside in second settling zone low level district is provided with immersible pump 16, clear water district includes clear water corridor 6, clear water hole 9 and clear water backwash pump 7, the top in clear water district is provided with clear water district ultrasonic wave level gauge 18, the top of sludge pit 10 is provided with mud district ultrasonic wave level gauge 19, mud district ultrasonic wave level gauge 19 is used for surveing the liquid level signal of water level and mud dredge pump 8 and mud mixing agitator 13, all be provided with the liquid level on mud dredge pump 8 and the mud mixing agitator 13 and open the start-stop interlocking, clear water backwash pump 7 is provided with the liquid level and opens the start-stop interlocking.
Further, the submersible pump 16 is started through a DCS control system, and the submersible pump 16 discharges the muddy water in the second sedimentation buffer zone to the sludge pit 10 through a drainage pipe 17.
Further, high-order second grade deposits barricade 11 and sets up the entrance at second sedimentation district 5, low level third grade deposits barricade 12 and sets up the exit at second sedimentation district 5.
Further, the sludge mixing stirrer 13 is controlled by a remote DCS control system and is provided with a liquid level high-low interlock, the sludge mixing stirrer 13 is started by the liquid level low interlock, and the sludge mixing stirrer 13 is stopped by the liquid level low interlock or the liquid level high-average interlock.
Further, the liquid level low interlocking starts the sludge pump 8 and is set according to the height that the liquid level is lower than the high-level two-stage sedimentation retaining wall 11, and the liquid level stops being set according to the lowest liquid level of the suction inlet of the sludge pump 8 body.
Furthermore, the tail end of the clear water corridor 6 is provided with a clear water high-level overflow hole 14 and a clear water low-level overflow hole 15, and the clear water reflux pump 7 is started and stopped in an interlocking mode according to the liquid level.
The utility model has the advantages that: the utility model has novel structure, improves the processing capacity of the sedimentation tank, does not need to expand the field, reduces the discharge amount of waste water, and improves the processing efficiency of a subsequent sludge processing system; the problem of sludge sedimentation slow, clear water recovery rate is low and bottom of the pool mud piles up unable effective discharge is solved, ensure that most clear water can be retrieved, practice thrift the water intaking amount by a wide margin, the large capacity is put in a large amount to the small capacity sludge settling pond can be realized, muddy water does not leave the sludge impoundment for a long time, can not cause former water pretreatment systems to arrange mud and hinder, realized evenly, high concentration mud is discharged to the sludge impoundment, improve follow-up sludge dewaterer work efficiency, make the sludge impoundment prevent a large amount of sediment silt, have very high practical value and spreading value.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of an overall structure of a water-saving type sedimentation tank for three-stage sedimentation of sludge according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the internal structure of a water-saving three-stage sludge sedimentation tank according to an embodiment of the present invention;
FIG. 3 is a schematic view of a settling wall structure of a water-saving three-stage settling sludge settling tank according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an overflow hole structure of a water-saving type sedimentation tank for three-stage sedimentation of sludge according to an embodiment of the present invention;
fig. 5 is a schematic view of a guide rail structure of a water-saving three-stage sludge sedimentation tank according to an embodiment of the present invention.
1. A water inlet; 2. an overflow weir; 3. a flow blocking wall; 4. a first settling zone; 5. a second precipitation zone; 6. a clear water corridor; 7. a clear water reflux pump; 8. a sludge discharge pump; 9. a clear water pit; 10. a sludge pit; 11. a high-level secondary sedimentation retaining wall; 12. a low-level three-level sedimentation retaining wall; 13. a sludge mixing agitator; 14. a clear water high-level overflow hole; 15. a clear water low level overflow hole; 16. a submersible pump; 17. a drain pipe; 18. clear water zone ultrasonic level meter; 19. an ultrasonic liquid level meter in the sludge area; 20. a guide rail.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
According to the utility model discloses an embodiment provides a sedimentation tank of water-saving tertiary sediment mud.
As shown in fig. 1-5, a water-saving sedimentation tank for three-stage sedimentary sludge according to an embodiment of the present invention comprises a water inlet buffer zone, a sludge sedimentation stirring zone, a second sedimentation buffer zone and a clear water zone, wherein the water inlet buffer zone comprises a water inlet 1, an overflow weir 2 and a flow blocking wall 3, the sludge sedimentation stirring zone comprises a first sedimentation zone 4, a sludge mixing stirrer 13, a sludge pit 10 and a sludge discharge pump 8, the sludge mixing stirrer 13 is fixedly arranged on a guide rail 20 to move up and down, the second sedimentation buffer zone comprises a high-level two-stage sedimentation retaining wall 11 and a low-level three-stage sedimentation retaining wall 12, the second sedimentation buffer zone is a surrounding area of the high-level two-stage sedimentation retaining wall 11 and the low-level three-stage sedimentation retaining wall 12, the second sedimentation buffer zone 5 is arranged inside the second sedimentation buffer zone, the inner side of the low-level three-stage sedimentation retaining wall 12 is provided with a second sedimentation zone high-level zone, the inboard of high-order second grade sedimentation barricade 11 is provided with second sedimentation zone low level district, be provided with immersible pump 16 on the second sedimentation zone low level district, the clear water district includes clear water corridor 6, clear water hole 9 and clear water backwash pump 7, the top in clear water district is provided with clear water district ultrasonic wave level gauge 18, the top of sludge pit 10 is provided with mud district ultrasonic wave level gauge 19, mud district ultrasonic wave level gauge 19 is used for monitoring the liquid level and the liquid level signal of mud sludge pump 8 and mud mixing agitator 13, all be provided with the liquid level on mud sludge pump 8 and the mud mixing agitator 13 and open and stop the interlocking, clear water backwash pump 7 is provided with the liquid level and opens and stop the interlocking, immersible pump 16 starts through DCS control system, immersible pump 16 passes through the muddy water of second sedimentation buffer zone drain pipe 17 and discharges to sludge pit 10, high-order sedimentation barricade 11 sets up the entrance at second sedimentation zone 5, the low level tertiary sedimentation barricade 12 sets up the exit at second sedimentation zone 5, the long-range DCS control system control of mud mixing agitator 13 to be provided with the high low interlocking of liquid level, the low interlocking of liquid level starts mud mixing agitator 13, and the low or high equal interlocking of liquid level stops mud mixing agitator 13, the low interlocking of liquid level starts mud pump 8 and is less than the high level secondary according to the liquid level and deposits the high setting of barricade 11, stops the liquid level and sets up according to the minimum liquid level of the 8 body sunction intakes of mud pump, the end in clear water corridor 6 is provided with clear water high level overflow hole 14 and clear water low level overflow hole 15, clear water backwash pump 7 sets up the interlocking according to the liquid level and opens and stop.
By means of the technical scheme, the water-saving three-level sedimentation tank for sludge comprises a water inlet buffer area, a sludge sedimentation stirring area, a second sedimentation buffer area and a clear water area, wherein the water inlet buffer area comprises a water inlet 1, an overflow weir 2 and a flow blocking wall 3.
Sludge sedimentation stirring district includes first settling zone 4, mud mixing agitator 13, sludge pit 10 and mud sludge discharge pump 8, mud mixing agitator 13 is fixed to be set up and is reciprocated on guide rail 20, the long-range DCS control system control of mud mixing agitator 13 to be provided with the liquid level height interlocking, the low interlocking of liquid level starts mud mixing agitator 13, and the low or high equal interlocking of liquid level stops of liquid level mud mixing agitator 13, the low interlocking of liquid level starts mud sludge discharge pump 8 and is less than the high level second grade according to the liquid level and deposits the high setting of barricade 11, stops the liquid level and sets up according to the minimum liquid level of the 8 body sunction intakes of mud discharge pump.
The second deposits the buffer zone and deposits barricade 11 and low level tertiary sedimentation barricade 12 including high level second grade, the second deposits the buffer zone and is that high level second grade deposits barricade 11 and low level tertiary sedimentation barricade 12 surround the region, high level second grade deposits barricade 11 and sets up the entrance at second sedimentation zone 5, low level tertiary sedimentation barricade 12 sets up in the exit of second sedimentation zone 5, and high level second grade deposits barricade 11 and should be higher than low level tertiary sedimentation barricade 12 (H2 > H1 promptly), and intermediate storage water only is used for muddy water through the high level second grade when depositing barricade 11 and enter buffering and increase the solid-phase flow resistance of solid-liquid two-phase flow.
The inside of buffer is deposited to the second is provided with second settling zone 5, the inboard that the barricade 12 was deposited to the low level tertiary is provided with the high-order district of second settling zone, the inboard that the barricade 11 was deposited to the high level secondary is provided with the low level district of second settling zone, be provided with immersible pump 16 on the low level district of second settling zone, immersible pump 16 starts through DCS control system, immersible pump 16 passes through the muddy water of second settling zone and arranges sludge pit 10 through drain pipe 17.
Clear water district includes clear water corridor 6, clear water hole 9 and clear water backwash pump 7, the top in clear water district is provided with clear water district ultrasonic wave level gauge 18, the top of sludge pit 10 is provided with mud district ultrasonic wave level gauge 19, mud district ultrasonic wave level gauge 19 is used for keeping watch on the liquid level and the liquid level signal of mud dredge pump 8 and mud mixing agitator 13, it opens the interlocking to all be provided with the liquid level on mud dredge pump 8 and the mud mixing agitator 13, clear water backwash pump 7 is provided with the liquid level and opens and stop the interlocking, clear water corridor 6's end is provided with clear water high-order overflow hole 14 and clear water low-order overflow hole 15, increases the clear water rate of recovery, simultaneously, allows clear water hole 9 to get into a small amount of activated sludge, clear water backwash pump 7 opens and stops according to the liquid level setting interlocking.
The utility model has novel structure, improves the processing capacity of the sedimentation tank, does not need to expand the field, reduces the discharge amount of waste water, and improves the processing efficiency of a subsequent sludge processing system; the problem of sludge sedimentation slow, clear water is retrieved and tank bottom mud is piled up unable effective discharge is solved, ensure that most clear water can be retrieved, practice thrift the water yield by a wide margin, capacity sludge settling pond realizes large capacity throughput, muddy water does not leave the sludge impoundment for a long time, can not cause 6 reaction settling ponds to arrange mud and hinder, realized even, high concentration mud arranges to the sludge impoundment, improve follow-up sludge dewaterer work efficiency, make the sludge impoundment prevent a large amount of sedimentary silt, have very high practical value and spreading value.
The working principle is as follows: the muddy water enters a sedimentation tank and is statically precipitated in a first precipitation area; along with the continuous inflow of the mud-water mixture, the water level of the first sedimentation area rises, water overflows the secondary sedimentation retaining wall, and water is stored in the second sedimentation area; the water level of the second sedimentation area rises, the water enters the clear water area after overflowing the three-level sedimentation retaining wall, the low-level overflow port of the clear water area is low enough to the ground, the water in the clear water area enters the clear water pit through the overflow port after being stored in a small amount of water, and the clear water returns to the reaction sedimentation tank through the clear water reflux pump after rising to a certain height; the overall water level of the sludge tank rises along with the continuous entering of the mud water, and the clear water pump is started to reduce the overall liquid level after the liquid level is higher than the secondary sedimentation retaining wall; and after the liquid level reaches the second-stage retaining wall, the sludge discharge pump is started, and meanwhile, the sludge mixing stirrer is started, so that the sludge and the water are fully mixed and are conveyed to the sludge treatment system through the sludge discharge pump.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a sedimentation tank of water-saving tertiary sediment mud, includes into water buffer, sludge sedimentation stirring district, second sediment buffer and clear water district, its characterized in that, it includes water inlet (1), overflow weir (2) and fender stream wall (3) to advance water buffer, sludge sedimentation stirring district includes first sedimentation zone (4), mud mixing agitator (13), sludge pit (10) and mud sludge pump (8), sludge mixing agitator (13) are fixed to be set up and are reciprocated on guide rail (20), the second sediment buffer includes high level second grade sediment barricade (11) and low level third grade sediment barricade (12), the second sediment buffer is the enclosure region of high level second grade sediment barricade (11) and low level third grade sediment barricade (12), the inside of second sediment buffer is provided with second sedimentation district (5), the inboard of low level third grade sediment barricade (12) is provided with second sedimentation district high level district, the inboard of high-order second grade deposit barricade (11) is provided with second settling zone low level district, be provided with immersible pump (16) on the second settling zone low level district, clear water district includes clear water corridor (6), clear water hole (9) and clear water backwash pump (7), the top in clear water district is provided with clear water district ultrasonic wave level gauge (18), the top in sludge hole (10) is provided with mud district ultrasonic wave level gauge (19), mud district ultrasonic wave level gauge (19) are used for surveing the liquid level and the liquid level signal of mud dredge pump (8) and mud mixing agitator (13), all be provided with the liquid level on mud dredge pump (8) and mud mixing agitator (13) and open and stop the interlocking, clear water backwash pump (7) are provided with and open and stop the liquid level interlocking.
2. A water-saving tertiary sedimentation sludge sedimentation tank in accordance with claim 1, wherein the submersible pump (16) is activated by a DCS control system, and the submersible pump (16) discharges the muddy water of the second sedimentation buffer zone to the sludge pit (10) through a drain pipe (17).
3. A water-saving three-stage settled sludge settling pond according to claim 1, wherein the high-level two-stage settling retaining wall (11) is arranged at the inlet of the second settling zone (5), and the low-level three-stage settling retaining wall (12) is arranged at the outlet of the second settling zone (5).
4. A water-saving three-stage settled sludge settling pond according to claim 1, wherein the sludge mixing agitator (13) is remotely controlled by a DCS control system and is provided with a liquid level high-low interlock, the liquid level low interlock starts the sludge mixing agitator (13), and the liquid level low or liquid level high both interlock stops the sludge mixing agitator (13).
5. A water-saving three-stage settled sludge settling pond as claimed in claim 1, wherein the liquid level low interlock start sludge pump (8) is set according to the liquid level lower than the height of the high-level two-stage settled retaining wall (11), and the stop liquid level is set according to the lowest liquid level of the suction inlet of the sludge pump (8).
6. A water-saving three-stage settled sludge settling pond according to claim 1, wherein the clear water corridor (6) is provided at its end with a clear water high-level overflow hole (14) and a clear water low-level overflow hole (15), and the clear water reflux pump (7) is interlocked to start and stop according to the liquid level setting.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020977538.9U CN213031923U (en) | 2020-06-02 | 2020-06-02 | Sedimentation tank of water-saving tertiary sediment mud |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020977538.9U CN213031923U (en) | 2020-06-02 | 2020-06-02 | Sedimentation tank of water-saving tertiary sediment mud |
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| CN213031923U true CN213031923U (en) | 2021-04-23 |
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| CN202020977538.9U Active CN213031923U (en) | 2020-06-02 | 2020-06-02 | Sedimentation tank of water-saving tertiary sediment mud |
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Address after: 233411 No. 1, Guodian Avenue, Tianhe Science Park, Bengbu City, Anhui Province Patentee after: Guoneng Bengbu Power Generation Co.,Ltd. Address before: 233000 investment building, 1757 Tushan Road, Bengbu City, Anhui Province Patentee before: Guodian Bengbu Power Generation Co.,Ltd. |