CN204918049U - Airfloat equipment - Google Patents
Airfloat equipment Download PDFInfo
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- CN204918049U CN204918049U CN201520477380.8U CN201520477380U CN204918049U CN 204918049 U CN204918049 U CN 204918049U CN 201520477380 U CN201520477380 U CN 201520477380U CN 204918049 U CN204918049 U CN 204918049U
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Abstract
The utility model provides an airfloat equipment, equipment include the air supporting pond, and the clear water export has been opened respectively in the air supporting pond, the sewage import, and outlet of sewer and row's cinder notch, the sewage import connected gradually vortex reactor, sewage pump, added medicine mouth and sewage entry, be equipped with the releaser in the air supporting pond, the releaser in proper order with the air supporting pond outside blender, presser pump be connected presser pump and clear water exit linkage, be equipped with the ejector in the blender, the ejector is connected with the overhead tank. The utility model discloses can get rid of the oil emulsion or the relative density that lean on natural sedimentation or come -up to be difficult to to get rid of in the waste water and be bordering on 1 small suspended particles, have compact structure, detersive efficiency is high, and the energy consumption is low, advantages such as degree of automation height.
Description
Technical field
The utility model relates to sewage treatment area, specifically a kind of airfloat equipment.
Background technology
Along with development that is economic and society, the Freshwater resources imbalance between supply and demand of China becomes increasingly conspicuous, and discharge of wastewater pollution on the environment is day by day serious, and water problems has become the significant problem affecting national economy.The Chinese government, from the theory of Sustainable development, continues to increase the scale of investment of Water resources development construction and waste water reclamation utilization.
Air supporting mode can be divided into loose gas air supporting, air-dissolving air-float and electrolytic gas float glass process.Application is had at present in feedwater, trade effluent and municipal sewage treatment.The features such as an airfloat equipment liquid separating device solid compared with other has less investment, floor space is little, level of automation is high, convenient operation and management.Should select targetedly according to features such as the water quality and quantities of waste water treatment process, waste water and use in practice.
Airfloat equipment is that a class passes into or produces a large amount of micro bubbles in water, air is made to be attached on suspended particle with the micro-bubble form of high dispersing, cause density to be less than the state of water, utilize law of buoyancy to make it keep afloat, thus realize the water treating equipment of solid-liquid separation.Air supporting mode can be divided into loose gas air supporting, air-dissolving air-float (comprising vacuum By Bubble-floating Method) and electrolytic gas float glass process.Application is had at present in feedwater, trade effluent and municipal sewage treatment.The features such as airfloat equipment has less investment compared with other solid-liquid separation equipment, occupation of land face is minimum, level of automation is high, convenient operation and management.
The factor affecting air-float segregation effect is a lot, and general air-floating apparatus mainly comprises air dissolving system, gas releasing system and air-flotation system, and it is also different that each system dominates influence factor.Mainly comprise: dissolved-air pressure, bubble size, flocculation agent, the residence time etc.
The height of dissolved-air pressure determines the number of molten tolerance and the size of bubble, thus affects effluent quality.Generalized case overdraft is larger, and bubble size is less, but pressure is little on the impact of bubble size after exceeding certain value, but also can increase power consumption, and pressure-controlling just can reach the bubble size needed for air supporting within 0.44MPa.
Bubble size directly affects air flotation effect, the ability of buoyancy suffered by the bubble of different size and adhesion suspension oil droplet is different, the too large ascent rate of bubble adheres to ability soon, and can water disturbance be caused, so air flotation effect is bad, but bubble is too small, very high to the requirement of reliever and pressure, power consumption is large, and process is simultaneously very large containing the floating assorted difficulty of too much microbubble, so bubble size is unsuitable excessive too small.It is generally acknowledged that the microbubble of 40 μm is proper.
Flocculation agent to be added carry out de-steady, breakdown of emulsion before air supporting.Its effect one is neutralization or the electric charge changing colloidal grain surface, to destroy the emulsifying agent making oil in water emulsion stable, improves air flotation effect; Two is form flocculation, and absorption oil droplet and suspended substance float jointly, the liptinite of reinforced foam.In order to reach good flocculating effect, need the mixed effect being improved flocculation agent and sewage by modes such as stirrings
Utility model content
The utility model is in order to solve the problem of prior art, provide a kind of airfloat equipment, can remove in waste water and be difficult to by natural subsidence or floating the small suspended particle that the oil in water emulsion removed or relative density are bordering on 1, this equipment has compact construction, detersive efficiency is high, the advantages such as energy consumption is low, and level of automation is high.
The airfloat equipment that the utility model provides comprises air flotation pool, and air flotation pool has clear water output, wastewater inlet, sewage outlet and slag-drip opening, and described wastewater inlet is connected with Vortex reactor, sump pump, dosing mouth and sewage inlet in turn; Be provided with reliever in air flotation pool, reliever is connected with the mixing tank outside air flotation pool, pressurizer pump successively, and pressurizer pump is connected with clear water output; Be provided with ejector in mixing tank, ejector is connected with pressure-pot.
Described air flotation pool comprises the exposure chamber on top and separate chamber's two portions of bottom, and exposure chamber is provided with except slag plate.
The method of work of airfloat equipment, comprises the following steps:
1) work before debugging: pull down reliever, pipeline and mixing tank are cleaned repeatedly, until inclusion-free in water outlet; Check and connect ejector water (flow) direction;
2) work during debugging: first use clear water ejector system, confirms that system cloud gray model is normal;
3) in sewage, add flocculation agent coagulation by dosing mouth, chemical feeding quantity is 0.001% ~ 0.002% of pending waste water total amount, and the coagulation time is 3 ~ 5min, and the reaction times is 8 ~ 15min;
4) waste water after coagulation passes in air flotation pool, the dissolved air water that ejector produces simultaneously enters air flotation pool by reliever, wherein dissolved air water pressure is 0.2 ~ 0.45MP, release quantity is 25 ~ 50ml/L, enter exposure chamber flow rate of water flow <0.1m/s, exposure chamber's current lift velocity is 5 ~ 120mm/s, exposure chamber's current residence time is 0.1 ~ 30min, under separate chamber's current to flow velocity be 1.0 ~ 8.0mm/s, separate chamber's current residence time is 1 ~ 10min, the compound residence time of sewage is 5 ~ 40min, clear water is 10 ~ 30m/s at water outlet flow velocity, air flotation pool water level is 5 ~ 10cm under slag-drip opening,
5) the part clear water that clear water output flows out flows back to mixing tank by pressurizer pump, and recirculation water forms new dissolved air water by ejector and enters in air flotation pool, and wherein in ejector, water level is 60 ~ 100cm at the bottom of distance tank;
6) amass to 5 ~ 8cm until scum silica frost, carry out blowdown and repeating step 1 after safeguarding).
The utility model beneficial effect is:
1) preposition medicine system: before dosing part is positioned over sump pump, make fully to mix between liquid with sewage by the vane rotary of sump pump, sewage is fully condensed.
2) adopt energy-efficient jet apparatus, recirculation water is fully mixed with bubble, form dissolved air water.
3) dissolved air water is in water inlet pipe mouth bottom by the unexpected aerating of reliever, and make the air in water by discharging suddenly a large amount of microbubble, microbubble runs into the suspended substance of coacervation in sewage in uphill process, and microbubble is attached on suspended substance, makes it to float very soon.In whole process, bubble particles is little, uniform particle sizes, and detersive efficiency is high.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
The utility model structure as shown in Figure 1, comprises air flotation pool 13, and air flotation pool 13 has clear water output 9, wastewater inlet 10, sewage outlet 11 and slag-drip opening 12.Described wastewater inlet 10 is connected with Vortex reactor 3, sump pump 2, dosing mouth 1 and sewage inlet in turn; Be provided with reliever 8 in air flotation pool 13, reliever 8 is connected with the mixing tank 5 outside air flotation pool 13, pressurizer pump 4 successively, and pressurizer pump is connected with clear water output 9; Be provided with ejector 7 in mixing tank 5, ejector 7 is connected with pressure-pot 6.Described air flotation pool 13 comprises the exposure chamber on top and separate chamber's two portions of bottom, and exposure chamber is provided with except slag plate.
The utility model handling object comprises and is not limited only to the heavy metal ion of electroplating wastewater, as zinc, chromium, copper, nickel, lead etc.The color removal of dyeing waste water.The removal of COD with leather-making waste water and colourity butchered by food.The removal of the grease of refinery water.To the removal of COD in the waste water such as wastewater from chemical industry and colo(u)r-in-oil.The fiber recovery of mthod of white water from paper making and the removal of COD.Reduce great Chi bath water turbidity and bacteria content.The turbidity of purification Drinking Water and industry.
The flocculation agent that dosing mouth is selected comprises and is not limited only to polymerize aluminum chloride, polymeric aluminium ferrum silicate, iron trichloride, polyacrylamide, heavy metal chelating agent, defoamer etc.
Embodiment 1
New-type air-floatation divides four parts: first add iron trichloride in dosing part, and add-on accounts for 0.001% of pending waste water total amount, fully mixes in sump pump with sewage.Adopt energy-efficient jet apparatus, ejector and the abundant mixed dissolution of recirculation water pressurizeed by pump after processing, form dissolved air water.The sewage of dosing coagulation enters in novel de-oiling pond, and dissolved air water by the unexpected aerating of reliever, makes the air in water by discharging suddenly a large amount of microbubble in water inlet pipe mouth bottom.Suspended substance is all bubbled through the water column, and then by the sludge sump of top, and is discharged by the clear water of process bottom pond.Whole process is controlled automatically by electrical control cubicles.
Concrete operations parameter is as follows:
Technical parameter
1) dissolved-air pressure: 0.2-0.45MP;
2) release quantity: 25-50ml/L;
3) mixing time: 3-5min;
4) reaction times: 8-12min;
5) exposure chamber flow rate of water flow <0.1m/s is entered;
6) exposure chamber's current upflow velocity: 15-25mm/s;
7) exposure chamber's current residence time: 1-2min;
8) under separate chamber's current to flow velocity: 2-5mm/s;
9) separate chamber's current residence time: 1-5min;
10) residence time is checked: 20-30min;
11) reliever exit velocity: 25m/s.
Water treatment effect sees the following form one:
The effect of table one new-type air-floatation device processes waste water
Embodiment 2
New-type air-floatation divides four parts: first add iron trichloride in dosing part, and add-on accounts for 0.002% of pending waste water total amount, fully mixes in sump pump with sewage.Adopt energy-efficient jet apparatus, ejector and the abundant mixed dissolution of recirculation water pressurizeed by pump after processing, form dissolved air water.The sewage of dosing coagulation enters in novel de-oiling pond, and dissolved air water by the unexpected aerating of reliever, makes the air in water by discharging suddenly a large amount of microbubble in water inlet pipe mouth bottom.Suspended substance is all bubbled through the water column, and then by the sludge sump of top, and is discharged by the clear water of process bottom pond.Whole process is controlled automatically by electrical control cubicles.
Concrete operations parameter is as follows:
Technical parameter
1) dissolved-air pressure: 0.2-0.4MP;
2) release quantity: 25-40ml/L;
3) mixing time: 3-5min;
4) reaction times: 10-15min;
5) exposure chamber flow rate of water flow <0.1m/s is entered;
6) exposure chamber's current upflow velocity: 15-25mm/s;
7) exposure chamber's current residence time: 1-2min;
8) under separate chamber's current to flow velocity: 2-5mm/s;
9) separate chamber's current residence time: 1-5min;
10) residence time is checked: 20-30min;
11) reliever exit velocity: 25m/s.
Water treatment effect sees the following form two:
Table two new-type air-floatation equipment water treatment effect
Comparative example 1
Tradition air supporting divides four parts: first utilize sump pump that sewage is introduced airfloat equipment, add flocculation agent iron trichloride, add-on accounts for 0.005% of pending waste water total amount.Introducing air in sewage, produce bubble, but bubble diameter is larger and uneven.Suspended substance is all bubbled through the water column, and then by the sludge sump of top, and is discharged by the clear water of process bottom pond.Whole process is controlled automatically by electrical control cubicles.
Concrete operations parameter is as follows:
Technical parameter
1) dissolved-air pressure: 0.2-0.4MP;
2) release quantity: 25-40ml/L;
3) mixing time: 3-5min;
4) reaction times: 10-15min;
5) exposure chamber flow rate of water flow <0.1m/s is entered;
6) exposure chamber's current upflow velocity: 15-25mm/s;
7) exposure chamber's current residence time: 1-2min;
8) under separate chamber's current to flow velocity: 2-5mm/s;
9) separate chamber's current residence time: 1-5min;
10) residence time is checked: 20-30min;
11) reliever exit velocity: 25m/s.
Water treatment effect sees the following form three:
The effect of table three traditional airfloat equipment process waste water
Comparative example 2
Tradition air supporting divides four parts: first utilize sump pump that sewage is introduced airfloat equipment, add flocculation agent iron trichloride, add-on accounts for 0.005% of pending waste water total amount.Introducing air in sewage, produce bubble, but bubble diameter is larger and uneven.Suspended substance is all bubbled through the water column, and then by the sludge sump of top, and is discharged by the clear water of process bottom pond.Whole process is controlled automatically by electrical control cubicles.
Concrete operations parameter is as follows:
Technical parameter
1) dissolved-air pressure: 0.1MP;
2) release quantity: 25-40ml/L;
3) mixing time: 8min;
4) reaction times: 10-15min;
5) exposure chamber flow rate of water flow <0.1m/s is entered;
6) exposure chamber's current upflow velocity: 15-25mm/s;
7) exposure chamber's current residence time: 3-5min;
8) under separate chamber's current to flow velocity: 4-5mm/s;
9) separate chamber's current residence time: 5-10min;
10) residence time is checked: 15-30min;
11) reliever exit velocity: 20m/s.
Water treatment effect sees the following form four:
The effect of table four traditional airfloat equipment process waste water
The utility model embody rule approach is a lot; the above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvement, these improvement also should be considered as protection domain of the present utility model.
Claims (2)
1. an airfloat equipment, comprise air flotation pool (13), air flotation pool (13) has clear water output (9), wastewater inlet (10), sewage outlet (11) and slag-drip opening (12), is characterized in that: described wastewater inlet (10) is connected with Vortex reactor (3), sump pump (2), dosing mouth (1) and sewage inlet in turn; Be provided with reliever (8) in air flotation pool (13), reliever (8) is connected with air flotation pool (13) mixing tank outward (5), pressurizer pump (4) successively, and pressurizer pump is connected with clear water output (9); Be provided with ejector (7) in mixing tank (5), ejector (7) is connected with pressure-pot (6).
2. airfloat equipment according to claim 1, is characterized in that: described air flotation pool (13) comprises the exposure chamber on top and separate chamber's two portions of bottom, and exposure chamber is provided with except slag plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520477380.8U CN204918049U (en) | 2015-06-30 | 2015-06-30 | Airfloat equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520477380.8U CN204918049U (en) | 2015-06-30 | 2015-06-30 | Airfloat equipment |
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| CN204918049U true CN204918049U (en) | 2015-12-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114381355A (en) * | 2020-10-19 | 2022-04-22 | 艾棣维欣(苏州)生物制药有限公司 | Bubble generating device for extracting plasmid DNA in bacteria |
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2015
- 2015-06-30 CN CN201520477380.8U patent/CN204918049U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114381355A (en) * | 2020-10-19 | 2022-04-22 | 艾棣维欣(苏州)生物制药有限公司 | Bubble generating device for extracting plasmid DNA in bacteria |
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