CN201394384Y - Sewage two-stage sedimentation tank - Google Patents
Sewage two-stage sedimentation tank Download PDFInfo
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- CN201394384Y CN201394384Y CN2009201538247U CN200920153824U CN201394384Y CN 201394384 Y CN201394384 Y CN 201394384Y CN 2009201538247 U CN2009201538247 U CN 2009201538247U CN 200920153824 U CN200920153824 U CN 200920153824U CN 201394384 Y CN201394384 Y CN 201394384Y
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- mud
- sludge
- pond
- sewage
- tank body
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Abstract
The utility model discloses a sewage two-stage sedimentation tank, comprising a clarifier, a tank body in the clarifier, wherein the tank body comprises a clarification area, a separation area, a storage area and a concentration area which are vertically set in the tank body and the sewage influent pipe at the bottom of the tank body enters into the tank body through a tank bottom plate and a center guide tube is set on the top of the influent pipe and a sewage bucket is set at the bottom of the tank body and a discharging pipe is set in the sludge bucket and the discharging pipe is connectedwith a discharging pump and a sludge scraping bridge is set in the tank body and a water-out weir plate is set at the perimeter of the tank body and a plurality of return sludge scraping plates are set on the sludge scraping bridge and a sludge guide tube is fixed on the sludge scraping bridge and the end of the sludge guide tube is set above the sludge bucket in the center of the tank body and the front end of the sludge guide tube is set on the return sludge scraping plates. The sludge collection speed is quick and the contact time of the sludge in the tank body is reduced and the impact load resistance and sludge quality fluctuation is increased and the disturbance on the sludge layer is reduced and the water quality is ensured.
Description
Technical field
The utility model belongs to feedwater, technical field of sewage treatment, relates to a kind of equipment for separating liquid from solid, relates in particular to a kind of sedimentation basin.
Background technology
At present, along with the industrialization of the country, urbanization process, the discharge capacity of industry, sanitary sewage significantly increases, sewage be treated as the problem that sustainable development presses for solution.The clarifying treatment method of sewage and the precipitation method are two kinds of Separation of Solid and Liquid treatment technologies of present sewage disposal.Depositing reservoir is to utilize the body refuse that gathers in the pond and the impurity particle in the former water to be in contact with one another, to adsorb, and to reach the very fast purification structure that separates of clear water, can give full play to the effect of coagulant and improve clarifying efficiency.Sedimentation basin then is to utilize the gravity effect to make solid pollutant separate removal from water.The process program of existing solid-liquid separation technique: 1, depositing reservoir generally is divided into accelerator, circulatior clarifier, plusator and sludge blanket clarifier.2, sedimentation basin generally is divided into flat flow, vertical-flow and radial-flow.In the radical sedimentation basin water treatment, pond body diameter is provided with bottom mud-scraping apparatus, mud-sucking device and surface and scrapes slag equipment between 25～35 meters.Processed raw sewage, the center bottom sedimentation basin enters the pond body, enters the pond body by central draft tube.Be divided into four parts on the body vertical height of pond, that is: settling section, Disengagement zone, storage area and enrichment region, sewage carries out mud-water separation in the Disengagement zone, and primary water is discharged by the upper strata, and mud precipitates gradually in body bottom, pond, concentrates, and discharges outside the pond.Thereby the realization Separation of Solid and Liquid is purified sewage.The shortcoming of existing radical sedimentation basin: 1, pond water water velocity instability, mud, water are long time of contact, and the easy anaerobic gas generation of mud, come-up influence effluent quality; 2, mechanical dredge equipment complexity, cost is higher; 3, construction quality is had relatively high expectations; 4, the adaptive capacity of impact load and sludge quality fluctuation is not strong.
The utility model content
Influence effluent quality, equipment complexity for the muddy water time of contact that solves existing radical sedimentation basin is long, produce in the not strong technical deficiency of adaptive capacity, the purpose of this utility model provide a kind ofly shorten the time of contact of mud in sedimentation basin, with mud collect fast, improve device anti-shock loading and sludge quality fluctuation ability, reduce water inlet to the disturbance of mud layer, a kind of sewage second-level settling pond of assurance effluent quality.
As follows in order to realize the technical scheme that utility model purpose of the present utility model adopts:
A kind of sewage second-level settling pond, comprise a clarifier, clarifier is provided with a pond body, the inside of pond body is from vertically setting up settling section separately, the Disengagement zone, storage area and enrichment region, the sewage water inlet pipe of body bottom, pond enters the pond body through pond body base plate, the water inlet pipe top is provided with central draft tube, the bottom of pond body be provided with sludge bucket, be provided with discharge pipeline in the sludge bucket, discharge pipeline is connected with sludge pump, be provided with mud-scraping bridge in the body of pond, the ring week of body periphery, pond is provided with the water outlet weir plate, it is characterized in that: be provided with some groups of returned sludge scraper plates on the mud-scraping bridge of body periphery, pond, fixing mud conduit on mud-scraping bridge, the mud catheter tip is located at the sludge bucket top of pool center, and the mud catheter proximal end is located on the returned sludge cleaning shoe.
Described mud-scraping bridge is provided with air blast, and mud conduit leading portion is connected with air blast by the road.
Described on gyratory directions, the returned sludge cleaning shoe is tilting, and the mud conduit mouth of pipe is located at returned sludge cleaning shoe place.
Described horizontal mud conduit is located at the bottom of the mud-scraping bridge of water surface top; The latter end of mud conduit is located at a side of central draft tube.
Described ultraviolet ray generating apparatus or the infrared lamp of on mud-scraping bridge, being provided with.
The beneficial effects of the utility model:
1, can shorten the time of contact of mud in sedimentation basin;
2, mud can be collected from the periphery fast, efficient is higher than simple mud-scraping apparatus;
3, the ability of anti-shock loading improves, especially can adapt to the water yield in rainy season than great fluctuation process;
4, the reflux ratio of mud can effectively be adjusted according to inflow;
5, reduced the disturbance of water inlet, improved effluent quality sludge blanket;
6, more more economical than mud-sucking device;
7, do not stop up the mud conduit;
8, simple to operate;
9, maintain easily.
Description of drawings
Fig. 1 is the structure cross-sectional schematic of embodiment of the present utility model.
1, pond body; 2, sewage water inlet pipe; 3, sludge bucket; 4, mud-scraping bridge; 5, returned sludge scraper plate; 6, mud conduit; 7, wireway; 8, air blast.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail.
As shown in Figure 1, the utility model and existing radical sedimentation basin are similar, improved on its basis, increased mud-sucking device, the mud of pond body 1 peripheral bottom is collected into sludge bucket 3 fast by mud conduit 6, inhale mud, the shared collection mud efficient that improves greatly of mud-scraping apparatus, improve the reflux ratio of activated sludge simultaneously, shortened the time of contact of mud and water, and the time of collection mud shortens, and reduces the possibility of the nitrated back of sludge anaerobic come-up, and reduce the disturbance of water inlet to sludge blanket, improve effluent quality, the ability of anti-shock loading improves, especially can adapt to the water yield in rainy season than great fluctuation process.Simple and convenient operation and maintenance.
Comprise a clarifier, clarifier is provided with a pond body 1.Pond body 1 is provided with at the bottom of the pond with a slope of peripheral high center bottom.The inside of pond body 1 is from vertically setting up settling section, Disengagement zone, storage area and enrichment region separately.Pond body 1 is provided with the surface of mud-scraping apparatus, mud-sucking device and the settling section upper periphery of bottom and scrapes slag equipment, and the ring week of pond body 1 periphery is provided with the water outlet weir plate, and slag equipment is scraped in water outlet weir plate inboard in the surface.The water outlet weir plate outside is provided with the primary water feeder.Body 1 bottom in pond is provided with sewage water inlet pipe 2, and sewage water inlet pipe 2 is worn the pond base plate and entered the pond body, and the water inlet pipe top is provided with central draft tube, and the raw sewage that flows out from the aeration tank flows into pond body 1 through sewage water inlet pipe 2.The center of pond body 1 bottom is provided with sludge bucket 3, is provided with discharge pipeline in the sludge bucket, and this discharge pipeline is connected with sludge pump.Be provided with mud-scraping bridge 4 in the pond body 1, mud-scraping bridge 4 bottoms are provided with mud scraper plate 5, and the mud scraper plate serves as that mud is scraped in the axle rotation with pond body 1 center.Be provided with mud conduit 6 in mud-scraping bridge 4 peripheries, mud conduit 6 tail ends are located at sludge bucket 3 tops, and mud conduit 6 front ends are located at mud scraper plate place.Mud conduit 6 stage casing horizontal are located at the bottom of the mud-scraping bridge 4 of settling section water surface top.Mud conduit 6 leading portions upper end is provided with the wireway 7 that exceeds the settling section water surface.The latter end of mud conduit 6 is located at a side of central draft tube.Mud-scraping bridge is provided with air blast 8, and mud conduit 6 leading portions are connected with air blast 8 by the road, utilizes gas to propose effect the peripheral mud in pond is delivered to center, pond sludge bucket.
On gyratory directions, the returned sludge cleaning shoe is tilting.The front opening of mud conduit 6 is located at mud scraper plate place.
Can establish ultraviolet ray generating apparatus in mud-scraping bridge 4 bottoms as required, prevent to grow algae; Can on mud-scraping bridge 4, be provided with infrared lamp, be used to prevent the aisle ice that hardens.Can also select for use defoaming device, mud position surveymeter, slag trap safety to put down device etc. as required.
Operation running of the present utility model:
Raw sewage from the aeration tank enters sedimentation basin from pond body 1 centre bottom through central draft tube.Evenly distribute in sedimentation basin, carry out Separation of Solid and Liquid in vertical direction, primary water is discharged through top water outlet weir plate, and sludge settling is to 1 end of pond body.Cleaning shoe serves as that mud is scraped in axle rotation with the center, pond, and mud is pushed to the sludge bucket 3 of pond body 1 central part, is discharged outside the pond by discharge pipeline again.
Mud-scraping bridge 4 of the present utility model is provided with the surface and scrapes slag equipment, and scum board is inswept continuously at the water surface, scum silica frost is concentrated and is scraped to the scum silica frost bucket, and discharge outside the pond body 1.
During the utility model is particularly suitable for being applied in, Large Water Works, might meet with big waterpower impact load water factory (such as: between flush period).
Claims (5)
1, a kind of sewage second-level settling pond, comprise a clarifier, clarifier is provided with a pond body, the inside of pond body is from vertically setting up settling section separately, the Disengagement zone, storage area and enrichment region, the sewage water inlet pipe of body bottom, pond enters the pond body through pond body base plate, the water inlet pipe top is provided with central draft tube, the bottom of pond body be provided with sludge bucket, be provided with discharge pipeline in the sludge bucket, discharge pipeline is connected with sludge pump, be provided with mud-scraping bridge in the body of pond, the ring week of body periphery, pond is provided with the water outlet weir plate, it is characterized in that: be provided with some groups of returned sludge scraper plates on the mud-scraping bridge of body periphery, pond, fixing mud conduit on mud-scraping bridge, the mud catheter tip is located at the sludge bucket top of pool center, and the mud catheter proximal end is located on the returned sludge cleaning shoe.
2, a kind of sewage second-level settling pond according to claim 1, it is characterized by: mud-scraping bridge is provided with air blast, and mud conduit leading portion is connected with air blast by the road.
3, a kind of sewage second-level settling pond according to claim 1 is characterized by: on gyratory directions, the returned sludge cleaning shoe is tilting, and the mud conduit mouth of pipe is located at returned sludge cleaning shoe place.
4, a kind of sewage second-level settling pond according to claim 2 is characterized by: horizontal mud conduit is located at the bottom of the mud-scraping bridge of water surface top; The latter end of mud conduit is located at a side of central draft tube.
5, a kind of sewage second-level settling pond according to claim 1 is characterized by: be provided with ultraviolet ray generating apparatus or infrared lamp on mud-scraping bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201538247U CN201394384Y (en) | 2009-05-06 | 2009-05-06 | Sewage two-stage sedimentation tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201538247U CN201394384Y (en) | 2009-05-06 | 2009-05-06 | Sewage two-stage sedimentation tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201394384Y true CN201394384Y (en) | 2010-02-03 |
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ID=41616873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201538247U Expired - Lifetime CN201394384Y (en) | 2009-05-06 | 2009-05-06 | Sewage two-stage sedimentation tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201394384Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101879382A (en) * | 2009-05-06 | 2010-11-10 | 得利满水处理系统(北京)有限公司 | Sewage second-level settling pond |
| CN110745927A (en) * | 2019-11-18 | 2020-02-04 | 宜兴市荣盛达环保有限公司 | Coupling separation device for removing SS (suspended substance) in catalytic cracking flue gas desulfurization wastewater |
-
2009
- 2009-05-06 CN CN2009201538247U patent/CN201394384Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101879382A (en) * | 2009-05-06 | 2010-11-10 | 得利满水处理系统(北京)有限公司 | Sewage second-level settling pond |
| CN101879382B (en) * | 2009-05-06 | 2013-07-24 | 得利满水处理系统(北京)有限公司 | Sewage second-level settling pond |
| CN110745927A (en) * | 2019-11-18 | 2020-02-04 | 宜兴市荣盛达环保有限公司 | Coupling separation device for removing SS (suspended substance) in catalytic cracking flue gas desulfurization wastewater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100203 |