CN105709468A - Supernatant extracting device of sludge tank of sewage treatment plant - Google Patents
Supernatant extracting device of sludge tank of sewage treatment plant Download PDFInfo
- Publication number
- CN105709468A CN105709468A CN201610215259.7A CN201610215259A CN105709468A CN 105709468 A CN105709468 A CN 105709468A CN 201610215259 A CN201610215259 A CN 201610215259A CN 105709468 A CN105709468 A CN 105709468A
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- CN
- China
- Prior art keywords
- water
- floating
- sludge
- tank
- pipe
- 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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Classifications
-
- 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
- B01D21/2444—Discharge mechanisms for the classified liquid
-
- 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
- B01D21/30—Control equipment
-
- 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
- B01D21/30—Control equipment
- B01D21/32—Density control of clear liquid or sediment, e.g. optical control ; Control of physical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Activated Sludge Processes (AREA)
Abstract
The invention discloses a supernatant extracting device of a sludge tank of a sewage treatment plant and belongs to the field of urban sewage treatment. The supernatant extracting device comprises a floating water taking device, a floating connecting device, a communication device, a concentration acquisition device, a connecting pipe, a connection switching device, a transition water pipe, a water outlet pipe and a control device, wherein the floating water taking device is mounted on the water surface of the sludge tank; the floating connecting device is mounted between the floating water taking device and the concentration acquisition device; the communication device is mounted on the connecting pipe; the concentration acquisition device is mounted on the connecting pipe; the connecting pipe is mounted between the connection switching device and the floating water taking device; the connection switching device is mounted between the transition water pipe and the connecting pipe; the control device is mounted in the middle of the water outlet pipe. The supernatant extracting device has the characteristics of capability of recycling a supernatant of the sludge tank, reducing water waste and improving sludge extraction and dehydration efficiency.
Description
Technical field
The invention belongs to field of municipal sewage treatment, particularly to the supernatant extraction element of the sludge-tank of a kind of sewage treatment plant.
Background technology
After the operations such as sludge-tank is a critical facility of municipal sewage plant, and sewage is passed through precipitation by existing sewage treatment plant mostly, filters, biogenic sediment, refilters, sludge condensation, just mud is collected entrance sludge-tank；Wherein concentration basin is the last process of sludge-tank, and the mud after concentration enters sludge-tank by siphon principle, and the water simultaneously mixed with mud also and enters sludge-tank together with mud；Mud is at sludge-tank through again precipitating, and mud is retracted on mud transporting equipment by the sludge pump supporting by sludge-tank, mud transports regulation place and is for further processing；Owing to the mud in sludge-tank is together with water, formed on the top of sludge-tank after precipitation and compare clear water, it is commonly called as supernatant, when the mud in sludge-tank is extracted by sludge pump, water can be taken away together, thus consume the extraction efficiency of sludge pump in vain, simultaneously because the sludge moisture content extracted is big, when output is to means of transport, sewage flows everywhere, causes new environmental pollution.
Summary of the invention
For the problems referred to above that existing sludge of sewage treatment plant pond exists, the present invention proposes the sludge-tank of a kind of sewage treatment plant, it is characterised in that: include cell body, supernatant extraction element；Described cell body is arranged near concentration basin, lower than the bottom of concentration basin bottom it；Described supernatant extraction element is arranged on cell body, it is possible to automatically extract the supernatant on the sludge-tank top with certain depth of below finite concentration.
The supernatant extraction element of the sludge-tank of described a kind of sewage treatment plant, it is characterised in that: include floating water fetching device, floating connecting device, communication device, concentration harvester, connecting tube, connection transfer device, transition water pipe, outlet pipe, control device；Described floating water fetching device is arranged on the water surface of sludge-tank, and can swim on the water surface；Described floating junction device is arranged between floating water fetching device and concentration harvester, for flexibly connecting；Described communication device is arranged in connecting tube, is connected with concentration harvester and control device；Described concentration harvester is arranged in connecting tube, is connected with communication device；The lower end position of described concentration harvester is less than or equal to the water inlet of floating water fetching device；Described connecting tube is arranged between connection transfer device and floating water fetching device, for flexibly connecting；Described connection transfer device is arranged between transition water pipe and connecting tube；Described connection transfer device can multi-angle rotary and seal water-tight；Described transition water pipe is arranged on the upper edge of sludge-tank and crosses over inside and outside pool wall, and one end is connected with connection transfer device, and the other end is connected with outlet pipe；Described outlet pipe is arranged on the pool wall of sludge-tank, and one end is connected with transition water pipe, and the other end is connected with clear water reclaiming system；Described control device is arranged in the middle part of outlet pipe.
Described one floating water fetching device, it is characterised in that: include ball float, device for fetching water, defecator；Described ball float is arranged on device for fetching water, it is possible to swim on the water surface；Described device for fetching water is arranged on below ball float, is immersed in underwater；Described defecator is arranged on the water inlet of device for fetching water.
The control device of described a kind of supernatant extraction element, it is characterised in that: include control chamber, signal input unit, control unit, memory element, signal output unit, electromagnetic valve；Described control chamber is arranged on the pool wall of sludge-tank；Described signal input unit is arranged in control chamber, is connected with concentration harvester and communication device；Described control unit is arranged in control chamber, and with signal input unit, memory element, signal output unit connects；Described memory element is arranged in control chamber, is connected with control unit；Described signal output unit is arranged in control chamber, is connected with control unit and electromagnetic valve；Described electromagnetic valve is arranged on the middle part of outlet pipe, and outlet pipe is isolated into upper and lower two parts；Described electromagnetic valve is connected with the signal output unit in control chamber.
Beneficial effect
The beneficial effects of the present invention is, it is possible to the supernatant of sludge-tank is recycled, reduce water waste, improve mud and extract and dewatering efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention
1. cell body, 2. supernatant extraction element.
Fig. 2 is the structural representation of supernatant extraction element
21. floating water fetching device, 22. floating connecting devices, 23. communication devices, 24. concentration harvesters, 25. connecting tubes, 26. connection transfer devices, 27. transition water pipes, 28. outlet pipes, 29. control device.
Fig. 3 is the structural representation of floating water fetching device
211. ball float, 212. device for fetching water, 213. defecators.
Fig. 4 is the structural representation controlling device
291. control chamber, 292. signal input unit, 293. control units, 294. memory element, 295. signal output units, 296. electromagnetic valves.
Detailed description of the invention
In order to further illustrate technical scheme, in conjunction with accompanying drawing, the specific embodiment of the present invention is described, such as Fig. 3, this example is selected the ball float of commercially available stainless steel as ball float 211, polystyrene foam or other lightweight object can also be selected as ball float 211, select thin-wall stainless steel as device for fetching water 212, select the stainless (steel) wire in 1 millimeter of aperture to be covered device for fetching water 212 as defecator 213, together with being welded with ball float 211 by device for fetching water 212, form floating water fetching device 21.
Such as Fig. 2, outlet one end of device for fetching water 212 is connected with floating connecting device 22, this example is selected commercially available corrugation plastic water pipe as floating connecting device 22；Select the concentration signal conversion equipment that the industry is general as communication device 24；Select the commercially available densitometer that the industry is general as concentration harvester 24, it is ensured that the lower end of concentration harvester 24 is lower than the lower end of device for fetching water 212, and is connected with communication device 23；Select commercially available rubber hose as connecting tube 25；Select commercially available sphere pipe jointing as connection transfer device 26；Select commercially available pvc pipe as transition water pipe 27 and outlet pipe 28, will connect in order with upper-part, form supernatant extraction element 2.
As Fig. 4 selects commercially available PLC that the industry is general as the signal input unit 292 controlling device 29, control unit 293, memory element 294, signal output unit 295, select commercially available electric appliance control box as control chamber 291；Select commercially available electromagnetic control cut-off valve as electromagnetic valve 296, electromagnetic valve 296 is arranged on the middle part of outlet pipe 28, outlet pipe 28 is isolated into two parts, the general electronic corporation elements such as corresponding relay it is installed in control chamber 291 and is connected with electromagnetic valve 296, just completing the enforcement controlling device 29.
Such as Fig. 1, supernatant extraction element 2, as sludge-tank 1, is arranged on the pool wall of sludge-tank 1 by the circular sludge-tank of the xoncrete structure that the selection industry is general, and wherein floating water fetching device 21 is placed on the water surface, just completes the enforcement of the present invention.
During application, when the supernatant in sludge-tank 1 is lower than when setting concentration, concentration harvester 24 sends signal, transmits a signal to control device 29 through communication device 23, controls device 29 and sends instruction, electromagnetic valve 296 is opened, owing to the position of floating water fetching device 21 is higher than the lower part outlet of outlet pipe 28, according to siphon principle, supernatant flows out automatically in outlet pipe 28, enter clear water reclaiming system, decrease the waste of water；Along with the decline of the water surface, when whose concentration concentration harvester 24 gathers more than setting value, concentration harvester 24 sends signal, sends control device 29 to, controls device 29 and closes electromagnetic valve 296, and current are cut off；Along with the precipitation of the mud in sludge-tank 1, when concentration is less than setting value, circulate above procedure, it becomes possible to the supernatant in sludge-tank 1 is reclaimed huge profit and uses；Meanwhile, when sludge pump extracts the mud in sludge-tank 1, owing to water content reduces, the extraction efficiency of sludge pump is just improved, and decreases many removal process, save the energy, improve production efficiency in follow-up mud anhydrates operation；Owing to have employed floating water fetching device 21 so that intake is constantly in water surface top, recovery is all the supernatant that concentration is little, namely clear water；Owing to have employed concentration harvester 24, can control to extract the concentration value of supernatant at any time, the water that will not make muddiness returns in clear water reclaiming system, flexibly connect owing to have employed, connection transfer device 26 with multi-angle, it is possible to adapt to the change in location of SEA LEVEL VARIATION and the floating water fetching device 21 that causes and concentration harvester 24, owing to have employed siphon principle, need not additionally increase power set and just can complete the extraction of supernatant, save the energy.
Claims (1)
1. the supernatant extraction element of the sludge-tank of a sewage treatment plant, it is characterised in that: include floating water fetching device, floating connecting device, communication device, concentration harvester, connecting tube, connection transfer device, transition water pipe, outlet pipe, control device；Described floating water fetching device is arranged on the water surface of sludge-tank, and can swim on the water surface；Described floating junction device is arranged between floating water fetching device and concentration harvester, for flexibly connecting；Described communication device is arranged in connecting tube, is connected with concentration harvester and control device；Described concentration harvester is arranged in connecting tube, is connected with communication device；The lower end position of described concentration harvester is less than or equal to the water inlet of floating water fetching device；Described connecting tube is arranged between connection transfer device and floating water fetching device, for flexibly connecting；Described connection transfer device is arranged between transition water pipe and connecting tube；Described connection transfer device can multi-angle rotary and seal water-tight；Described transition water pipe is arranged on the upper edge of sludge-tank and crosses over inside and outside pool wall, and one end is connected with connection transfer device, and the other end is connected with outlet pipe；Described outlet pipe is arranged on the pool wall of sludge-tank, and one end is connected with transition water pipe, and the other end is connected with clear water reclaiming system；Described control device is arranged in the middle part of outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610215259.7A CN105709468A (en) | 2016-04-08 | 2016-04-08 | Supernatant extracting device of sludge tank of sewage treatment plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610215259.7A CN105709468A (en) | 2016-04-08 | 2016-04-08 | Supernatant extracting device of sludge tank of sewage treatment plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105709468A true CN105709468A (en) | 2016-06-29 |
Family
ID=56160753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610215259.7A Pending CN105709468A (en) | 2016-04-08 | 2016-04-08 | Supernatant extracting device of sludge tank of sewage treatment plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105709468A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111672171A (en) * | 2020-06-29 | 2020-09-18 | 泉州潘大侠网络科技有限公司 | Extraction mechanism of industrial sewage purification device for environmental protection engineering |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2316014Y (en) * | 1997-09-10 | 1999-04-28 | 中国石油化工总公司 | Apparatus for discharging supernatant from settled mixture |
| CN2398259Y (en) * | 1999-11-11 | 2000-09-27 | 冯义信 | Adjustable water decanting apparatus |
| DE202004011306U1 (en) * | 2004-07-13 | 2005-11-24 | Glaser, Bernd | Clarification tank for turbid water, having floating sludge remover operated in response to floating sludge detecting sensor(s) |
| US7547392B2 (en) * | 2004-04-23 | 2009-06-16 | Water Standard Company Llc | Wastewater treatment vessel |
| CN202277712U (en) * | 2011-11-03 | 2012-06-20 | 天津艾杰环保技术工程有限公司 | Unpowered automatic floating type decanter |
| CN203342467U (en) * | 2013-06-04 | 2013-12-18 | 佛山市高明贝斯特陶瓷有限公司 | Automatic clear water and slurry pumping device |
| CN203425568U (en) * | 2013-07-22 | 2014-02-12 | 云南正晓环保投资有限公司 | Water drainage device of sewage settling tank |
| CN104276660A (en) * | 2014-10-28 | 2015-01-14 | 成都绿源新创环保科技有限公司 | Sequencing-batch real-time control sewage treatment device |
| CN205516683U (en) * | 2016-04-08 | 2016-08-31 | 河南泽衡环保科技股份有限公司 | Supernatant extraction element of sewage treatment plant's sludge impoundment |
-
2016
- 2016-04-08 CN CN201610215259.7A patent/CN105709468A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2316014Y (en) * | 1997-09-10 | 1999-04-28 | 中国石油化工总公司 | Apparatus for discharging supernatant from settled mixture |
| CN2398259Y (en) * | 1999-11-11 | 2000-09-27 | 冯义信 | Adjustable water decanting apparatus |
| US7547392B2 (en) * | 2004-04-23 | 2009-06-16 | Water Standard Company Llc | Wastewater treatment vessel |
| DE202004011306U1 (en) * | 2004-07-13 | 2005-11-24 | Glaser, Bernd | Clarification tank for turbid water, having floating sludge remover operated in response to floating sludge detecting sensor(s) |
| CN202277712U (en) * | 2011-11-03 | 2012-06-20 | 天津艾杰环保技术工程有限公司 | Unpowered automatic floating type decanter |
| CN203342467U (en) * | 2013-06-04 | 2013-12-18 | 佛山市高明贝斯特陶瓷有限公司 | Automatic clear water and slurry pumping device |
| CN203425568U (en) * | 2013-07-22 | 2014-02-12 | 云南正晓环保投资有限公司 | Water drainage device of sewage settling tank |
| CN104276660A (en) * | 2014-10-28 | 2015-01-14 | 成都绿源新创环保科技有限公司 | Sequencing-batch real-time control sewage treatment device |
| CN205516683U (en) * | 2016-04-08 | 2016-08-31 | 河南泽衡环保科技股份有限公司 | Supernatant extraction element of sewage treatment plant's sludge impoundment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111672171A (en) * | 2020-06-29 | 2020-09-18 | 泉州潘大侠网络科技有限公司 | Extraction mechanism of industrial sewage purification device for environmental protection engineering |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160629 |