CN208279432U - It is a kind of for reducing the chemical dephosphorization device of added amount of chemical - Google Patents
It is a kind of for reducing the chemical dephosphorization device of added amount of chemical Download PDFInfo
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- CN208279432U CN208279432U CN201820619124.1U CN201820619124U CN208279432U CN 208279432 U CN208279432 U CN 208279432U CN 201820619124 U CN201820619124 U CN 201820619124U CN 208279432 U CN208279432 U CN 208279432U
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Abstract
The utility model relates to a kind of for reducing the chemical dephosphorization device of added amount of chemical, including the first reaction tank, the second reaction tank, inclined-plate clarifying basin, blowoff basin and sludge-tank；The outlet of first reaction tank is connected with the entrance of the second reaction tank, the outlet of second reaction tank is connected with the entrance of inclined-plate clarifying basin, the supernatant liquor outlet of the inclined-plate clarifying basin is connected with blowoff basin, the slurry outlet of the inclined-plate clarifying basin is connected with sludge-tank, and the sludge-tank is connected with the first reaction tank；The sludge-tank is connected with device for discharging sludge.Sludge recirculation system is introduced in the utility model, the dephosphorization agent not reacted completely for making to contain in sludge is utilized, and is conducive to the control of operating cost；Due in sludge containing the dephosphorization agent that some is not reacted completely, in sludge reflux to the first reaction tank after, reduce the dosage of dephosphorization agent；The labor intensity of worker's unpacking medicine-feeding mitigates, and reduces the operating cost of sewage dephosphorization.
Description
Technical field
The utility model relates to a kind of for reducing the chemical dephosphorization device of added amount of chemical, especially for Dephosphorization reagent
The biggish sewage-treatment plant of usage amount.
Background technique
In recent years, water eutrophication phenomenon in China's becomes intensification development, gives industry, aquatic products industry, agricultural and tourist industry
All bring great harm.Phosphorus-containing wastewater therefore, is controlled phosphorous exceeded one of the main reason for causing water eutrophication
Discharge of wastewater is significant.
Existing dephosphorization apparatus, start-up course use chemical dephosphorization technique, add PAC and PAM as dephosphorization agent and flocculation
Agent, by substances such as the phosphate dissolved in sewage from being removed by way of precipitating in sewage, and the form shape by phosphorus to precipitate
At chemical sludge.Treatment process includes that sewage enters reaction zone 1 through water inlet pipe, PAC solution is added in reaction zone, and fast
It under the stirring of fast blender, is sufficiently mixed medicament with sewage and reacts, enter reaction tank 2 with the sewage self-flowing of PAC hybrid reaction,
PAM is added in reaction tank 2, and is stirred mixing by mixing slowly machine, medicament is sufficiently mixed with sewage and reacts, and is enhanced
Flocculation makes sediment be more likely to form chemical sludge.
Sewage after reaction intakes hole even into carrying out mud-water separation, top in inclined-plate clarifying basin by precipitating bottom of pond portion
Clear liquid qualified discharge after overflow weir flows automatically and enters outer blowoff basin；Base sludge passes through the dredge pump of suction dredge bottom, will sink
In the mud discharging to sludge sump in shallow lake, sludge gravity flow enters in sludge-tank in sludge sump, then conveys sludge by sludge pump
It is handled in sewage plant sludge disposition workshop.
Existing dephosphorization apparatus can be such that the total phosphorus in sewage reaches according to the actual motion of engineering after adding dephosphorization agent
The discharge standard of national requirements, but reagent consumption amount is bigger, increases the operating cost of sewage treatment plant.
Utility model content
Technical problem to be solved in the utility model is that medicine consumption is biggish in operation for existing chemical dephosphorization device
Problem, provides a kind of for reducing the chemical dephosphorization device of added amount of chemical, to reduce the usage amount of medicament, can make sewage
The operating cost for the treatment of plant reduces.
The technical solution that the utility model solves above-mentioned technical problem is as follows:
The utility model provide it is a kind of for reducing the chemical dephosphorization device of added amount of chemical, including the first reaction tank,
Two reaction tanks, inclined-plate clarifying basin, blowoff basin and sludge-tank；The outlet of first reaction tank is connected with the entrance of the second reaction tank
Logical, the outlet of second reaction tank is connected with the entrance of inclined-plate clarifying basin, the supernatant liquor outlet of the inclined-plate clarifying basin
It is connected with blowoff basin, the slurry outlet of the inclined-plate clarifying basin is connected with sludge-tank, the sludge-tank and the first reaction tank
It is connected；The sludge-tank is connected with device for discharging sludge.
The beneficial effects of the utility model are: the utility model introduces sludge recirculation system in chemical dephosphorization device,
The dephosphorization agent not reacted completely for making to contain in sludge is utilized, and is conducive to the control of operating cost.Simultaneously as in sludge
Containing the dephosphorization agent that some is not reacted completely, in sludge reflux to anti-first reaction tank after, reduce adding for dephosphorization agent
Amount.In addition, the labor intensity of worker's unpacking medicine-feeding mitigates, and drops the operating cost of sewage dephosphorization with the reduction of dosage
It is low.
Further, the sludge-tank is connected with the first reaction tank and device for discharging sludge respectively by threeway, the dirt
It is equipped with kinetic pump between mud sump and threeway, the first valve, the threeway and sludge are equipped between the threeway and the first reaction tank
The second valve is equipped between tapping equipment.
Further, first valve and the second valve are flow control valve.
Further, it is connected between the sludge-tank and the first reaction tank by kinetic pump, the sludge-tank and mud discharging
It is connected between device by kinetic pump.
Further, quick mixer is equipped in the first reaction tank reaction tank.
Further, it is equipped in the second reaction tank reaction tank and mixes slowly machine.
Further, first reaction tank is connected with dephosphorization agent adding tube, and second reaction tank and flocculant add
Pipe is connected.
Further, the dephosphorization agent in the dephosphorization agent adding tube is aluminium polychloride, is added in the flocculant adding tube
Flocculant be polyacrylamide.
Further, the slurry outlet of the inclined-plate clarifying basin is connected by suction dredge with sludge-tank.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the chemical dephosphorization device for reducing added amount of chemical of the utility model.
Description of symbols
1. the first reaction tank, 2. second reaction tanks, 3 inclined-plate clarifying basins, 4. sludge-tanks, 5. blowoff basins, 6. quick mixers,
7. machine is mixed slowly, 8. suction dredges, 9. kinetic pumps.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
As shown in Figure 1, the utility model provide it is a kind of for reducing the chemical dephosphorization device of added amount of chemical, including first
Reaction tank 1, the second reaction tank 2, inclined-plate clarifying basin 3, blowoff basin 5 and sludge-tank 4；The outlet and second of first reaction tank 1
The entrance of reaction tank 2 is connected, and the outlet of second reaction tank 2 is connected with the entrance of inclined-plate clarifying basin 3, and the inclined plate is heavy
The supernatant liquor outlet in shallow lake pond 3 is connected with blowoff basin 5, and the slurry outlet of the inclined-plate clarifying basin 3 is connected with sludge-tank 4,
The sludge-tank 4 is connected with the first reaction tank 1；The sludge-tank 4 is connected with device for discharging sludge.
The beneficial effects of the utility model are: the utility model introduces sludge recirculation system in chemical dephosphorization device,
The dephosphorization agent not reacted completely for making to contain in sludge is utilized, and is conducive to the control of operating cost.Simultaneously as in sludge
Containing the dephosphorization agent that some is not reacted completely, in sludge reflux to reaction tank 1 after, reduce the dosage of dephosphorization agent.This
Outside, with the reduction of dosage, the labor intensity of worker's unpacking medicine-feeding mitigates, and reduces the operating cost of sewage dephosphorization.
As the further scheme of the present embodiment, the sludge-tank 4 is arranged with the first reaction tank 1 and sludge respectively by threeway
It puts device to be connected, kinetic pump 9 is equipped between the sludge-tank 4 and threeway, the is equipped between the threeway and the first reaction tank 1
One valve is equipped with the second valve between the threeway and device for discharging sludge.
As the further scheme of the present embodiment, first valve and the second valve are flow control valve.
As another scheme of the present embodiment, it is connected between the sludge-tank 4 and the first reaction tank 2 by kinetic pump,
It is connected between the sludge-tank 4 and device for discharging sludge by kinetic pump.
As the further scheme of the present embodiment, quick mixer 6 is equipped in first reaction tank 1.Quick mixer
That is high-speed mixer, high-speed mixer are stablized effectively using the operating of the various specifications motors such as electromagnetic speed-adjusting, frequency control and three speed,
It is suitble to various viscosity.Hydraulic and mechanical two kinds of liftings form, lifting rotation freely, adapt to various positions；Common and explosion-proof configuration,
Securely and reliably, Operation and Maintenance is simple；Continuous production is strong, can carry out rapid dispersion and dissolution to material, and dispersion effect is good, production
It is high-efficient, smooth running, simple installation.Viscosity and treating capacity for different material have different power and model.
As the further scheme of the present embodiment, it is equipped in second reaction tank 2 and mixes slowly machine 7.Mix slowly machine
It stirs at low speed suitable for being dispersed with stirring of high-viscosity material, stir at low speed paddle material is stirred comprehensively, be finally reached material and fill
Divide, efficient dispersion, configures frequency control.
As the further scheme of the present embodiment, first reaction chamber 1 is connected with dephosphorization agent adding tube, and described second
Reaction chamber is connected with flocculant adding tube.
As the further scheme of the present embodiment, the dephosphorization agent in the dephosphorization agent adding tube is aluminium polychloride, described
The flocculant added in flocculant adding tube is polyacrylamide.
As the further scheme of the present embodiment, the slurry outlet of the inclined-plate clarifying basin 3 passes through suction dredge 8 and sludge-tank
It is connected.
When the present apparatus is built, first pond body is built and is completed, inclined plate packing is installed in inclined-plate clarifying basin later, it is anti-first
Blender is installed in Ying Chi and the second reaction tank, suction dredge 8 is installed on reserved track above the inclined-plate clarifying basin, in sludge-tank 4
Interior installation sludge pump 9.Threeway is installed in the sludge pipe exit of sludge-tank 4, sludge a part is made to be delivered to original mud discharging
Device is carried out dehydrating, and another part is back in the first reaction tank 1.Either, it is not necessarily to threeway, passes through two different pipes
Road respectively exports the sludge pipe of sludge-tank 4 to be connected with the first reaction tank 1 or device for discharging sludge.It is only needed using when threeway
One pump is set between threeway and sludge-tank, power is provided, structure is simpler, and dosage or switch can be existed by setting
Flow valve control on pipeline.When using two two circuits of pump, the up-front investment cost of a pump, but its energy are increased
Transport capacity is enough increased, keeps operational efficiency higher, greatly reduces operating cost.
Start-up course:
Original sewage treatment plant's sewage is introduced 1 in the first reaction tank, adds aluminium polychloride in the first reaction tank 1,
And stirred by quick mixer 6, making sewage and medicament hybrid reaction, mixed sewage self-flowing enters 2 in the second reaction tank,
Polyacrylamide is added in the second reaction tank 1, and is stirred by mixing slowly machine 7, and sewage and medicament hybrid reaction are generated
Flocculate, the sewage after reaction enters by the water-distributing gap of 3 bottom of inclined-tube sedimentation tank carries out mud-water separation in tube settling district, on
To outer blowoff basin 5, lower part sludge is sucked out layer clear liquid discharging through suction dredge bottom, is emitted into sludge-tank 4, sludge pump in sludge-tank 4
Sludge is partly refluxed in the first reaction tank 1 by sludge pipe, reacts mud mixture containing medicament again with sewage, it is another
Part is carried out dehydrating between being delivered to Treatment of Sludge.
Sewage carries out with aluminium polychloride and polyacrylamide sufficiently anti-respectively in the first reaction tank and the second reaction tank
It answers, so that soluble phosphate and aluminium in sewage is formed granular precipitates, sediment mud-water separation in inclined-tube sedimentation tank is
Phosphorus is removed in the form of sediment.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (9)
1. a kind of for reducing the chemical dephosphorization device of added amount of chemical, including the first reaction tank, the second reaction tank, sloping plate deposition
Pond, blowoff basin and sludge-tank；The outlet of first reaction tank is connected with the entrance of the second reaction tank, second reaction tank
Outlet be connected with the entrance of inclined-plate clarifying basin, the outlet of the supernatant liquor of the inclined-plate clarifying basin is connected with blowoff basin, institute
The slurry outlet for stating inclined-plate clarifying basin is connected with sludge-tank, which is characterized in that the sludge-tank is connected with the first reaction tank；
The sludge-tank is connected with device for discharging sludge.
2. according to claim 1 for reducing the chemical dephosphorization device of added amount of chemical, which is characterized in that the sludge
Pond is connected with the first reaction tank and device for discharging sludge respectively by threeway, and power is equipped between the sludge-tank and threeway
Pump is equipped with the first valve between the threeway and the first reaction tank, the second valve is equipped between the threeway and device for discharging sludge
Door.
3. according to claim 2 for reducing the chemical dephosphorization device of added amount of chemical, which is characterized in that described first
Valve and the second valve are flow control valve.
4. according to claim 1 for reducing the chemical dephosphorization device of added amount of chemical, which is characterized in that the sludge
It is connected between pond and the first reaction tank by kinetic pump, is connected between the sludge-tank and device for discharging sludge by kinetic pump.
5. according to claim 1 for reducing the chemical dephosphorization device of added amount of chemical, which is characterized in that described first
Quick mixer is equipped in reaction tank reaction tank.
6. according to claim 1 for reducing the chemical dephosphorization device of added amount of chemical, which is characterized in that described second
It is equipped in reaction tank reaction tank and mixes slowly machine.
7. -6 any chemical dephosphorization device for being used to reduce added amount of chemical according to claim 1, it is characterised in that: institute
It states the first reaction tank to be connected with dephosphorization agent adding tube, second reaction tank is connected with flocculant adding tube.
8. according to claim 7 for reducing the chemical dephosphorization device of added amount of chemical, which is characterized in that the dephosphorization
Dephosphorization agent in agent adding tube is aluminium polychloride, and the flocculant added in the flocculant adding tube is polyacrylamide.
9. according to claim 7 for reducing the chemical dephosphorization device of added amount of chemical, which is characterized in that the inclined plate
The slurry outlet of sedimentation basin is connected by suction dredge with sludge-tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820619124.1U CN208279432U (en) | 2018-04-27 | 2018-04-27 | It is a kind of for reducing the chemical dephosphorization device of added amount of chemical |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820619124.1U CN208279432U (en) | 2018-04-27 | 2018-04-27 | It is a kind of for reducing the chemical dephosphorization device of added amount of chemical |
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| Publication Number | Publication Date |
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| CN208279432U true CN208279432U (en) | 2018-12-25 |
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| CN201820619124.1U Active CN208279432U (en) | 2018-04-27 | 2018-04-27 | It is a kind of for reducing the chemical dephosphorization device of added amount of chemical |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110066046A (en) * | 2019-04-12 | 2019-07-30 | 南京华创环境技术研究院有限公司 | A kind of dephosphorization system and phosphorus removing method |
| CN111620417A (en) * | 2020-04-21 | 2020-09-04 | 广州市市政工程设计研究总院有限公司 | Device and method for deeply removing phosphorus from sewage |
-
2018
- 2018-04-27 CN CN201820619124.1U patent/CN208279432U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110066046A (en) * | 2019-04-12 | 2019-07-30 | 南京华创环境技术研究院有限公司 | A kind of dephosphorization system and phosphorus removing method |
| CN111620417A (en) * | 2020-04-21 | 2020-09-04 | 广州市市政工程设计研究总院有限公司 | Device and method for deeply removing phosphorus from sewage |
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