CN114053764A - Sewage treatment advection sedimentation tank automatic slag removal device - Google Patents
Sewage treatment advection sedimentation tank automatic slag removal device Download PDFInfo
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- CN114053764A CN114053764A CN202010754380.3A CN202010754380A CN114053764A CN 114053764 A CN114053764 A CN 114053764A CN 202010754380 A CN202010754380 A CN 202010754380A CN 114053764 A CN114053764 A CN 114053764A
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- frame
- sedimentation tank
- slag
- scraping
- mud
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
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- Chemical Kinetics & Catalysis (AREA)
- Removal Of Floating Material (AREA)
Abstract
The invention discloses an automatic slag removal device for a horizontal flow sedimentation tank for sewage treatment, which comprises a slag scraping system and a scum collecting and discharging system, wherein the slag scraping system is supported on a sludge scraping and sucking machine of the horizontal flow sedimentation tank, a transverse support is arranged on the side surface of the sludge scraping and sucking machine, a vertical frame is connected with the support through a shaft sleeve, the upper part of the frame is connected with a steel cable, and the vertical frame is connected with a lifting motor through a pulley and can move up and down; the lower part of the frame adopts bolts to fix the flexible scraper, and the scraper is deep below the liquid level during operation; the operation control is provided with a limit switch, when the mud scraping and sucking machine walks towards the water outlet weir plate, the frame is lifted, the scraper blade leaves the water surface, and when the mud scraping and sucking machine walks towards the mud storage pool, the frame is lowered to be below the liquid level to start the slag scraping operation; sedimentation tank mud storage pond lateral wall set up the collection sediment groove, the collection sediment groove exceeds liquid level 30mm, the collection sediment groove is close to scrape the suction dredge direction and establishes and draws the sediment board, draw the sediment board to go deep into 50mm below the liquid level, the scraper blade with draw the sediment groove after contacting, impel the sediment groove with the dross on surface, the collection sediment groove side leans on the bottom trompil, the installation scum pipe, the dross is discharged the mud storage pond through the sediment groove through the scum pipe, discharges the dross from water processing system, gets into the concentrated dewatering system of mud. The invention can thoroughly improve the problem of scum in the horizontal flow sedimentation tank and can greatly improve the quality of the effluent of the sedimentation tank.
Description
Technical Field
An automatic slag removal device for a sewage treatment horizontal sedimentation tank.
Background
The invention discloses an automatic slag removal device of a horizontal sedimentation tank, which comprises a slag scraping system and a scum collecting and discharging system, wherein the slag scraping system is supported on a sludge scraping and sucking machine of the horizontal sedimentation tank, a transverse support is arranged on the side surface of the sludge scraping and sucking machine, a vertical frame is connected with the support through a shaft sleeve, the upper part of the frame is connected with a steel cable, and the frame is connected with a lifting motor through a pulley and can move up and down; the lower part of the frame adopts bolts to fix the flexible scraper, and the scraper is deep below the liquid level during operation; the operation control is provided with a limit switch, when the mud scraping and sucking machine walks towards the water outlet weir plate, the frame is lifted, the scraper blade leaves the water surface, and when the mud scraping and sucking machine walks towards the mud storage pool, the frame is lowered to be below the liquid level to start the slag scraping operation; sedimentation tank mud storage pond lateral wall set up the collection sediment groove, the collection sediment groove exceeds liquid level 30mm, the collection sediment groove is close to scrape the suction dredge direction and establishes and draws the sediment board, draw the sediment board to go deep into 50mm below the liquid level, the scraper blade with draw the sediment groove after contacting, impel the sediment groove with the dross on surface, the collection sediment groove side leans on the bottom trompil, the installation scum pipe, the dross is discharged the mud storage pond through the sediment groove through the scum pipe, discharges the dross from water processing system, gets into the concentrated dewatering system of mud. The invention can thoroughly improve the problem of scum in the horizontal flow sedimentation tank and can greatly improve the quality of the effluent of the sedimentation tank.
Disclosure of Invention
The invention aims to provide an automatic deslagging device for a sewage treatment horizontal flow sedimentation tank, which solves the problem of low efficiency of manual floating slag salvage in the existing horizontal flow sedimentation tank in the background technology, solves the influence of floating slag on suspended matters in effluent and improves the effluent quality.
In order to realize the aim, the invention provides the following technical scheme that the automatic slag removal device for the sewage treatment horizontal flow sedimentation tank comprises a mud scraping and sucking machine and a frame, wherein the frame is connected with the mud scraping and sucking machine through a shaft sleeve of a transverse supporting beam, and a scraper is fixed with the frame by adopting bolts and nylon gaskets at the lower part of the frame; the frame is connected with a steel cable, and the steel cable is connected with a lifting wheel of a motor through a pulley. The motor is fixed with the mud scraping and sucking machine through a support. The frame and the sludge scraping and sucking machine move together, a touch descending switch is arranged on the weir plate side of the horizontal sedimentation tank, a touch ascending switch is arranged on the slag collecting groove of the horizontal sedimentation tank, the slag guiding plate and the slag collecting groove are fixed on the side wall of the sludge storage tank, the bottom of the side wall is provided with a hole with the diameter of 160mm, and a slag discharging pipe with the diameter of 150mm is arranged.
Preferably, when the mud scraping and sucking machine moves towards the mud storage pool and touches the touch type descending switch, a signal is transmitted to the control box, and the framework descends; when the mud scraping and sucking machine moves towards the mud storage pool, and is in touch with the touch type ascending switch, a signal is transmitted to the control box, and the frame ascends.
Preferably, the frame is connected to a bushing of a cross support beam, and the frame is movable up and down.
Preferably, the lower part of the frame adopts a bolt and a nylon gasket to fix the scraper and the frame, and the scraper is of a detachable structure.
Preferably, the slag guide plate is connected with the slag collecting groove. The slag guiding plate is of an arc groove structure.
Compared with the prior art, can realize that automatic dross clears up, collects, can transfer the dross to the sludge thickening dewatering system in from water treatment system.
1. The lifting frame is arranged, when the frame moves towards the direction of the weir plate, the scraper plate rises and leaves the water surface without contacting with the scum, so that the scum is prevented from moving towards the direction of the weir plate; when the scraper moves towards the mud storage tank and passes through the weir plate area, the scraper descends to push the scum towards the scum collecting tank.
2. The flexible scraper is arranged, the scraper is made of rubber materials, can be tightly attached to the slag guide plate, and can discharge all scum into the scum collecting tank.
3. The slag guide plate is arranged, the front end of the slag guide plate goes deep into the water, and the arc-shaped structure can be tightly contacted with the scraper blade to prevent scum from flowing back.
4. The scum is discharged through the scum collecting tank and the scum storing tank, so that the influence of the scum on the sewage treatment system is eliminated.
Drawings
FIG. 1 is a schematic view of the longitudinal cross-section structure of the present invention
FIG. 2 is a schematic diagram of the cross-sectional structure of the present invention
FIG. 3 is a schematic plan view of the present invention
In the figure: 1. a motor; 2. a steel cord; 3. a pulley; 4. a frame; 5. a shaft sleeve; 6. a nylon gasket; 7. a bolt; 8. a squeegee; 9. a slag guide plate; 10. a slag collecting groove; 11. a mud suction scraper; 12. a slag discharge pipe; 13. a track; 14. a cross support beam; 15. a control box; 16. a horizontal flow sedimentation tank; 17. a mud storage pool; 18. a touch down switch; 19. a touch-type up switch; 20. a turning point at the weir plate; 21. and (4) a water outlet weir plate.
The specific implementation mode is as follows:
the technical scheme of the invention is fully explained in detail by combining the attached drawing in the invention, and aiming at the scum problem of the horizontal flow sedimentation tank, the invention can effectively solve the problems of low manual deslagging efficiency and influence on yielding water Suspended Solids (SS for short).
Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a sewage treatment advection sedimentation tank automatic slag removal device includes: the device comprises a motor 1, a steel cable 2, a pulley 3, a frame 4, a shaft sleeve 5, a nylon gasket 6, bolts 7, a scraper 8, a slag guiding plate 9, a slag collecting groove 10, a suction mud scraper 11, a slag discharge pipe 12, a track 13, a cross supporting beam 14, a control box 15, a horizontal flow sedimentation tank 16, a sludge storage tank 17, a touch descending switch 18, a touch ascending switch 19, a return point at the position of a weir plate 20 and a water outlet weir plate 21. The frame 4 is connected with a mud scraping and sucking machine 11 through a shaft sleeve 5 of a transverse supporting beam 14, the frame can move up and down, a scraping plate 8 is fixed with the frame 4 at the lower part of the frame 4 by adopting a bolt 7 and a nylon gasket 6, and the scraping plate can be detached; the frame 4 is connected with a steel cable 2, and the steel cable 2 is connected with a lifting wheel of the motor 1 through a pulley 3. The motor 1 is fixed with the mud scraping and sucking machine 11 through a support. The frame 4 and the sludge scraping and sucking machine 11 move together, the back turning point 20 moves towards the direction of the sludge storage tank from the weir plate, the tail end of the water outlet weir plate 21 of the horizontal sedimentation tank 16 is provided with a touch descending switch 18, the slag collecting groove of the horizontal sedimentation tank 16 is provided with a touch ascending switch 19, when the sludge scraping and sucking machine 11 moves towards the direction of the sludge storage tank 17 and touches the touch descending switch 18, a signal is transmitted to the control box 15, and the frame 4 descends; when the mud scraping and sucking machine 11 moves towards the mud storage tank 17 and touches the touch type ascending switch 19, a signal is transmitted to the control box 15, and the frame 4 ascends; the slag guiding plate 9 and the slag collecting groove 10 are fixed on the side wall of the sludge storage pool 17, the slag guiding plate is of an arc groove structure, the bottom of the side wall is provided with a hole with the diameter of 160mm, and the slag discharging pipe 12 with the diameter of 150mm is placed in the hole.
The working process is as follows: the implementation process takes a turning point (20) at the position of a weir plate as a starting point, the mud scraping and sucking machine walks towards the mud storage pool, the frame is in a rising state at the moment, the scraping plate is not contacted with the water surface, after the frame walks to a descending touch switch, the touch switch transmits a signal to the control box, the control box starts the motor to rotate reversely, the frame descends by 100mm, the scraping plate is immersed in water by 70mm at the moment, the mud scraping and sucking machine continues to walk, the scraping plate pushes floating slag towards the mud storage pool, when the scraping plate is contacted with the slag guiding plate, the flexible scraping plate deforms at the moment, the lower edge is tightly attached to the slag guiding plate, the floating slag within 50mm below the liquid level is pushed to the slag guiding plate by the scraping plate, and then enters the slag collecting tank; when walking to the touch switch that rises, signal transmission gives the control box, and the starter motor forward rotates, promotes 100mm with the frame, and the scraper blade leaves the liquid level, inhales the mud scraper simultaneously and turns round and move toward keeping away from the mud storage pond direction, scrapes the other end that the mud scraper walked to the advection pond and turns back, continues to walk through the weir plate region after, reachs decline touch switch, and the scraper blade descends to below the liquid level, begins next circulation. The scum enters a sludge collecting groove, flows into a sludge storage tank through a scum discharging pipe and is discharged out of a sewage treatment system.
The implementation case is as follows:
1. background introduction
The embodiment is applied to a domestic sewage treatment plant, and a layer of foam and scum from A floats on the upper surface of an anoxic pond2Activated sludge in the O biochemical tank enters a horizontal flow sedimentation tank, scum exists on the surface (60 percent of area) of the horizontal flow sedimentation tank, normal water outlet is influenced, SS reaches 30-50 mg/l, and subsequent fiber rotary disc filter tanks are overloaded, so that the water outlet exceeds the standard. The manual slag salvaging is adopted in the operation process, the efficiency is low, the work is heavy, and for the above conditions, a set of automatic slag discharging equipment is arranged on the basis of the existing facilities.
2. Automatic slag removing equipment
The equipment is supported by an existing mud scraping and sucking machine, a support is arranged on the side face of the mud scraping and sucking machine, a light lifting frame is vertically arranged, a rubber scraper is fixed to the lower portion of the frame, a support is arranged in the upper space of the mud scraping and sucking machine, a motor lifting device is installed, a steel cable is connected with the frame through a pulley, the pulley is fixed by a cantilever support, and the vertical movement range of the scraper is 100 mm. The slag guiding plate and the slag collecting groove are made of 304 stainless steel plates, expansion bolts and supports are connected with the side walls, the sedimentation tank and the sludge storage tank are milled through partition walls, stainless steel pipes with the diameter of 150mm are welded with the slag collecting groove, and gaps around the pipes are subjected to waterproof treatment. Wherein the width of the slag collecting groove is 500mm, the length of the slag collecting groove is 10m (the width is the same as that of the sedimentation tank), the width of the slag guiding groove is 400mm, and the lowest part of the slag guiding groove is 50mm lower than the liquid level.
3. Operation control
The descending touch switch (the walking direction is effective towards the contact of the sludge storage tank) is installed at the starting end of the weir plate, the ascending touch switch and the limit switch at the sludge storage tank end of the sludge scraping and sucking machine are shared, the turning of the sludge scraping and sucking machine is realized, and the frame ascends. Touch switch signal reaches the control box, and the direction and the stroke of control box control motor, the power consumption is got from scraping suction dredge block terminal, adopts PLC automatic control.
4. Operational effects
In actual operation, the automatic slag removing device adopts a desirable good effect of intermittent starting, and is started every 6 hours and 2 cycles each time. The equipment runs stably, the effluent SS effect is good (see the following table),
| index (I) | Before the device is installed | After the device is installed |
| SS（mg/L） | 30~50 | 5~15 |
The pressure of the subsequent fiber rotary disc filter is reduced. Because the scum is cleared out of the sewage treatment system, the sludge activity is greatly improved.
Claims (5)
1. The utility model provides a sewage treatment advection sedimentation tank automatic slag removal device includes scrapes suction dredge (11) and frame (4), its characterized in that: the frame (4) is connected with the mud scraping and sucking machine (11) through a shaft sleeve (5) of a transverse supporting beam (14), and the lower part of the frame (4) adopts a bolt (7) and a nylon gasket (6) to fix the scraper (8) with the frame (4); the horizontal flow sedimentation tank is characterized in that the frame (4) is connected with the steel cable (2), the steel cable (2) is connected with a lifting wheel of the motor (1) through a pulley (3), the motor (1) is fixed with the mud scraping and sucking machine (11) through a support, the frame (4) and the mud scraping and sucking machine (11) travel horizontally together, a touch descending switch (18) is arranged on the weir plate side of the horizontal flow sedimentation tank (16), a touch ascending switch (19) is arranged on the slag collecting groove of the horizontal flow sedimentation tank (16), the slag guiding plate (9) and the slag collecting groove (10) are fixed on the side wall of the mud storage tank (17), an opening is formed in the bottom of the side wall, the diameter of the opening is 160mm, and the slag discharging pipe (12) with the diameter of 150mm is placed in the opening.
2. The automatic slag removal device for the sewage treatment horizontal flow sedimentation tank according to claim 1, which is characterized in that: the frame (4) is connected with the shaft sleeve (5) of the cross supporting beam (14), and the frame (4) can move up and down.
3. The automatic slag removal device for the sewage treatment horizontal flow sedimentation tank according to claim 1, which is characterized in that: when the sludge scraping and sucking machine (11) walks towards the sludge storage tank (17) by taking the weir plate folding point (20) as a starting point, after the water outlet weir plate (21) touches the touch type descending switch (18), a signal is transmitted to the control box (15), and the frame (4) descends; when the mud scraping and sucking machine (11) travels towards the mud storage tank (17) and touches the touch type ascending switch (19), a signal is transmitted to the control box (15), and the frame (4) ascends.
4. The automatic slag removal device for the sewage treatment horizontal flow sedimentation tank according to claim 1, which is characterized in that: the lower part of the frame (4) adopts a bolt (7) and a nylon gasket (6) to fix the scraper (8) with the frame (4), and the scraper (8) is of a detachable structure.
5. The automatic slag removal device for the sewage treatment horizontal flow sedimentation tank according to claim 1, which is characterized in that: the slag guide plate (9) is connected with the slag collecting groove (10); the slag guiding plate (9) is of an arc-shaped groove structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010754380.3A CN114053764A (en) | 2020-07-31 | 2020-07-31 | Sewage treatment advection sedimentation tank automatic slag removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010754380.3A CN114053764A (en) | 2020-07-31 | 2020-07-31 | Sewage treatment advection sedimentation tank automatic slag removal device |
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| Publication Number | Publication Date |
|---|---|
| CN114053764A true CN114053764A (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010754380.3A Pending CN114053764A (en) | 2020-07-31 | 2020-07-31 | Sewage treatment advection sedimentation tank automatic slag removal device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117225020A (en) * | 2023-11-13 | 2023-12-15 | 乐创环保科技有限公司 | Inhale mud scraper that environmental protection engineering used |
| CN118579902A (en) * | 2024-08-06 | 2024-09-03 | 青岛水务集团有限公司 | Algae removal water purification device and algae removal water purification method |
-
2020
- 2020-07-31 CN CN202010754380.3A patent/CN114053764A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117225020A (en) * | 2023-11-13 | 2023-12-15 | 乐创环保科技有限公司 | Inhale mud scraper that environmental protection engineering used |
| CN117225020B (en) * | 2023-11-13 | 2024-02-06 | 乐创环保科技有限公司 | Inhale mud scraper that environmental protection engineering used |
| CN118579902A (en) * | 2024-08-06 | 2024-09-03 | 青岛水务集团有限公司 | Algae removal water purification device and algae removal water purification method |
| CN118579902B (en) * | 2024-08-06 | 2024-11-01 | 青岛水务集团有限公司 | Algae removal water purification device and algae removal water purification method |
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Application publication date: 20220218 |
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