CN1023695C - Swirl-aeration purifying water equipment - Google Patents
Swirl-aeration purifying water equipment Download PDFInfo
- Publication number
- CN1023695C CN1023695C CN89100502A CN89100502A CN1023695C CN 1023695 C CN1023695 C CN 1023695C CN 89100502 A CN89100502 A CN 89100502A CN 89100502 A CN89100502 A CN 89100502A CN 1023695 C CN1023695 C CN 1023695C
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- Prior art keywords
- liquid
- water
- pipe
- separator
- mixing tank
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The present invention relates to a swirl-inflatable water purifying device which belongs to a water treating device. The water purifying device of the present invention uses a high-efficiency liquid-gas injector 9 and a swirl-inflatable mixer 13, wherein porous material is used for inflation in the mixer, a three-dimensional rotary flow field is formed, and the total dynamic contact area of a gas phase, a liquid phase and a liquid phase is greatly increased; multiphase flow flows across a swirl liquid-solid separator 16, and floating slag is thoroughly separated; accordingly, waste water is separated with high load at a high speed. The device of the present invention has the advantages of small occupation land, less investment, low energy consumption and high separation efficiency; waste water containing heavy metal of which the concentration is 250 mg/1 can also be treated.
Description
The invention belongs to the treatment unit of water.
Industrial technology that is used for purifying water and device had air-blowing air supporting, vacuum air supporting, electrofloatation and deep-well air supporting etc. in the past.At present, what domestic and international application was wide, the most largest is pressure air-dissolving air-float technology and device, various oils, fiber, heavy metal, suspended substance etc. during it removes in the water treatment of different industries such as oil, chemical industry, weaving, printing and dyeing, papermaking, metallurgy, food and feedwater and anhydrates., but the problem that pressure air-dissolving air-float exists has: (1) dissolved-air pressure departs from, and the energy consumption of running is bigger; (2) the microbubble diameter of Chan Shenging is big, and density is little, and homogeneity is bad, causes daf efficiency low; (3) volume of equipment is bigger than normal, causes the big and investment increase of floor space; (4) do not reach high loaded process.On the basis of pressure air-dissolving air-float, Xu Zhi etc. [" environmental engineering ", No4, (1986)] set about to improve micro-bubble generator-gas release device, principle design with " differential consumption outgas " goes out novel efficient air-floating shower nozzle, in the hope of reaching " enlarging the dynamic contact area of air water "; Zhao Jun [" Environmental Pollution and Control ", No2, No3(1985)] propose to replace existing most water pump and air compressor system with jet pressurized dissolved air flotation system, but these two kinds of equipment all are to belong to improving equipment of pressure air-dissolving air-float system, though make solubleness, dissolved efficiency and the pneumatically supported stability of air in water, improve to some extent aspect cutting down the consumption of energy, can realize far away making pressure air-dissolving air-float system can two-forty, the purpose of high loading continous-stable running.Japan M.Nonaka[Sep, Sci and Tech 21(5), 475(1986)] inflation-air pocket air-flotation system is proposed, in the hope of raising dissolved air flotation speed, but this system only rests on the laboratory study stage at present, fails to reach the requirement of high loaded process.
The objective of the invention is to solve two-forty, the high loading (being high-concentration waste water) of failing to realize in the present air floating water purification technology equipment, the problem of continuous operation, and water purification apparatus is cut down the consumption of energy, reduce floor space and facility investment.
Major technique measure of the present invention is design and develops dynamical liquid-gas ejector, eddy flow-inflation mixing tank and rotary fluid-solid separator, liquid-gas ejector is installed in the force (forcing) pump outlet pipe place of drawing water, the power extraction air that utilizes force (forcing) pump to provide, make two strands of liquid of liquids and gases in injector, carry out momentum exchange, produce turbulent fluctuation blending and turn and enter eddy flow-inflation mixing tank, in mixing tank, inflated the strong turbulent flow blending of the micro-bubble that forms with the bottom by the air distribution plate of porous material making again, form three-dimensional turn flow field, make gas in unit time and space, liquid, Gu the three phase dynamic gross contact area greatly improves, the concentration of air in the liquid phase and separated solids approaches the homogeneous state, thereby reaches high-speed, the purpose of high loading dissolved air flotation.
With reference to the accompanying drawings the effect and the structure of each parts of the present invention is introduced below.Fig. 1 is the system schematic of eddy flow of the present invention-inflation air-float purifier, wherein 1 is the Waste Water Centralized pond, and it is to make pending Waste Water Centralized in wherein leaving standstill equilibrium, and makes the solid granular foreign material of heavy in the waste water be deposited in its bottom, so that regularly remove, in order to avoid the work of each parts below the influence; 2 for carrying water pump, and it is pending waste water to be transported to adjust the pond; 3 are waste water adjustment pond, and the waste water that transports from Waste Water Centralized pond 1 adds acid or alkali this pond, adjust its potential of hydrogen, adds thereupon and delivers to following processing after gas floatation agent stirs; 4 is the header tank of acid, and its storage acid is for the acidity of regulating pending water; 5 is the header tank of alkali, and it stores alkali, for the basicity of regulating pending water; 6 is the gas floatation agent storage tank, and the gas floatation agent that the present invention adopts is sodium oleate or C
16～C
20Sodium soap [C
16H
33～C
20H
41COONa] and many propylene glycol butyl ether [C
4H
9-(C-O-CH
2-
N-OH] the aqueous solution that (n=1～5) mixed preparing forms, the concentration of the aqueous solution is 1%(W/V), handling 1 ton of effluent containing heavy metal ions, when its concentration of metal ions is 500mg/l when following, the ratio of gas floatation agent is: C
16～C
20Sodium soap 20 grams, 20 milliliters of many propylene glycol butyl ethers; 7 is pressure water pump, and it is that the pending water of adjusting in the pond 3 is sent into liquid-gas ejector 9; 8 is the wastewater flow meter, and it shows the discharge of being sent into injector 9 by pressure water pump 7; 10 is air compressor, and it provides source of the gas for the air distribution plate in the mixing tank 13 produces reboil bubble; 11 are the air filtration pressure reducer, and it is that the air that compressor 10 is sent here is filtered and be adjusted to the pressure that use needs; 12 is tensimeter, and it shows the pressure of the secondary source of the gas that enters mixing tank 13; 13 is eddy flow-inflation gas mixing tank; 14 is gas meter, and it is to show the gas flow that flows into injector 9; 15 is running water pipe, when it provides mixing tank 13 and separator 16 shutdown, cleans the tap water of use; 16 is rotary fluid-solid separator; 17 is sand filter, and promptly clear water after treatment filters in sand filter again, the water allow compliance with emission standards that it is discharged; 18 is the scum silica frost filtering basin, even the scum silica frost after handling removes water treatment once more; 19 is the clear water vent pipe; 20 is the input tube that waits treating water.Fig. 2 is the structural representation of liquid-gas ejector 9, and wherein 21 is nozzle, and the treating water with certain pressure that it transports pressure water pump 7 sprays with certain speed; 22 is the housing of injector; 23 is vacuum chamber, because nozzle 21 has the ejection of high speed water, according to hydromechanical character, forms certain negative pressure power in 23, makes air in 24 inlet chambers; 24 is air intlet, and the air capacity that enters is shown by gas meter 14; 25 is mixing tube, and it is the water that makes nozzle 21 ejection and mix formation liquid-gas two phase flow at this section through 24 air that enter; 26 is diffuser tube, makes liquid-gas two phase flow enter mixing tank 13 after the supercharging gradually in this section; 27 is water port, and it is when shutting down the ponding in the vacuum chamber 23 to be discharged; Can make nozzle 21 flexible with regulating mechanism,, make amount of air drawn reach requirement to change its position in vacuum chamber.Fig. 3 is the structural representation of eddy flow-inflation mixing tank 13, and mixing tank is the cylinder that length-to-diameter ratio was about 3: 1, and it is divided into plenum chamber 32 and mixing section 37 two partss with air distribution plate 34; Wherein 31 is water port, and it is that the ponding in the plenum chamber 32 is discharged; 32 is plenum chamber, it is that the air that air compressor 10 is sent here is store therein, 33 is inlet pipe, it is that the air that compressor 10 is sent here is imported in the plenum chamber 32, inlet pipe 33 is made for pipe, the centerline that it is extend into mixing tank is downwards crooked, makes air enter plenum chamber 32 backs downwards and sees through the microbubble that air distribution plate forms secondary; 34 is the gas distribution diffuser plate, and it is to be formed by the engineering plastics sintering, has small ventilative duct, and generally ventilative hole is 10～50 microns, and air distribution plate 34 usefulness flanges and cushion course sealing and fixing are in mixing tank, and it is divided into plenum chamber and mixing section two portions to mixing tank; 35 is the rinse water outlet, cleans the water mouthful discharge thus of mixing tank when shutting down; 36 is liquid-inlet pipe, it is a rectangular pipe, the proportionlity of cross section rectangle two edge lengths a, the b of rectangular pipe and the diameter D of mixing tank is b/a=6.2～10.8, D/b=16～20.8, to guarantee that liquid-gas-solid phase material that liquid stream has certain speed to enter mixing tank is able to thorough mixing and approaches homogeneous concentration, the dynamic contact surface of triangle molecule micelle greatly improves in unit time and the unit volume, make and carry out mass transfer, momentum and energy exchange efficiently, the axis of liquid-inlet pipe 36 and the sea line of mixing tank have an angle theta to declivity
1, it affects angle and the speed that liquid is rotated down, and generally gets 4～10; 37 is the eddy flow mixing section, and it mixes the liquid-solid-gas three-phase in the fluid betwixt fully, and upwards floats owing to its rotation makes little solid impurity for the treatment of water and gas floatation agent formation scum silica frost; 38 for cleaning water pipe, and it is to provide clear water to clean mixing tank and air distribution plate 34 when shutting down, and makes air distribution plate do not influenced works better by suspending sundries stops up; 39 is liquid outlet, and Fig. 4 is the structural representation of rotary fluid-solid separator 16, and separator is that a length-to-diameter ratio is about 5: 1 cylinder, and wherein: 41 is clear water output, and promptly clear water after treatment is expelled to sand filter 17 filtrations thus; 42 is rest chamber, and promptly the scum silica frost in separator has part because the effect of gravity moves downward again, and it moves in the rest chamber and is left standstill, and makes these scum silica frost because buoyancy moves upward again, and it contains clear water and leaves standstill the back by clear water output 41 discharges; 43 is feed-pipe, feed-pipe is a rectangular pipe, the proportionlity of two length of side c, the d of square-section and the diameter phi of separator is φ/C=4～5.8, φ/d=10.5～14.2 o'clock rotary fluid-solid separator most effective, gas-liquid-solid scum silica frost and the water sepn under the effect of centrifugal force, lift of gas and gravity, impelled, scum silica frost is discharged from the slag-drip opening of top, and water is discharged from the clear water output of lower end, and the axis of feed-pipe 43 and the horizontal axis of separator have a upswept angle theta
2, the speed that its decision liquid upwards revolves also influences its swing, general θ
2Get 4～10; 44 is the water conservancy diversion plate washer, and it is the circular sheet plastic alternate with annular, and being arranged as of they controlled the fluidic turn, makes that scum silica frost has enough disengaging times in separator, improves its separating effect; 45 is the clear water pipe, and it is that round tube forms, and has aperture along their the axially and radially position of certain distance, so that when shutting down, passes to tap water and cleans the scum silica frost that rests on the water conservancy diversion plate washer, cleans the fixed support that water pipe 45 is again the water conservancy diversion plate washer simultaneously; 46 is slag-drip opening, and the scum silica frost after promptly handling drains into the scum silica frost filtering basin thus, will have the moisture content that scum silica frost is taken out of of hydrophobic nature, drains automatically.
Now water purification flow path and being connected of each parts with apparatus of the present invention describes.Pending trade effluent flows into Waste Water Centralized pond 1 from production plant by waste water input tube 20, leaves standstill equilibrium in centralized pool 1, and makes the solid granular foreign material of heavy in the waste water be deposited in the bottom; Waste water after leaving standstill carries out pre-treatment by carrying water pump 2 to deliver to wastewater equalization pond 3, promptly from by header tank 4 or 5 and gas floatation agent storage tank 6 add acid or alkali and gas floatation agent, make pending waste water be adjusted to certain potential of hydrogen and contain certain gas floatation agent, it is stirred, through the waste water of pre-treatment by pressure water pump 7 and under meter 8, enter liquid-gas ejector 9 with certain pressure and flow velocity, waste water sprays from nozzle 21 with high velocity jet in injector, because of the effect of entrainmenting of high speed jet produces negative pressure with air from import 24 suctions, the solution-air a fluid stream imports to mixing tube 25 from the housing inner chamber of injector, in mixing tube 25, carry out energy exchange and produce the turbulent fluctuation mixing, air moment is dissolved in the waste water, the air that be sucked this moment is sheared and is broken for countless tiny bubbles, the size of bubble is determined by the equilibrant between the surface tension of shear-stress and bubble, bubble is owing to there is the provide protection of gas floatation agent, thereby can not break or annex increase owing to collision, jet flow is after diffuser tube 26 slows down then, that waste water becomes is gas-liquid-solid-heterogeneous mixing jet; Heterogeneous mixed flow enters eddy flow-inflation mixing tank 13 by liquid-inlet pipe 36, because liquid-inlet pipe 36 has an angle θ to declivity with mixing tank 13
1So the downward at a certain angle tangent line of the heterogeneous mixed flow of waste water enters in the mixing tank, under the effect of centrifugal intertia force, at first do the backspin motion, in the eddy flow mixing section 37 of mixing tank, inflate to mix with the secondary microbubble that the air that is compressed by compressor 10 forms through gas distribution diffuser plate 34 again and move upward, form the three-dimensional heterogeneous mixing flow field of turn, strong once more turbulent flow blending, make the interior air of liquid phase and the concentration of solid matter approach the homogeneous state, thereby make the unit time, solution-air in the unit volume, Gu the total area of three phase dynamic contact improves greatly, thereby can carry out mass transfer and energy exchange efficiently, realize continuous high loaded process; Waste water enters rotary fluid-solid separator 16 by liquid outlet 39 through feed-pipe 43 then, and the heterogenetic wastewater stream is with certain angle θ
2Upwards tangent line enters separator, under the effect of centrifugal intertia force and buoyant effect, volume density less than the bubble-gas floatation agent-solid scum silica frost of water under the control of flow deflector 44, through the separation distance of long period, scum silica frost is fully separated with water, and last scum silica frost is discharged by slag-drip opening 46; Clear water after the separation enters sand filter 17 and leaves standstill and filter to discharge for other uses, and the impurity scum silica frost enters scum silica frost filtering basin 18, removes once more behind its contained humidity for use behind the agency.
Utilize swirl-aeration purifying water equipment of the present invention to containing Cu
2+Ion plating waste water carries out Processing Test, and treatment capacity is 5 tons of waste water per hour, and the relevant condition of its purifier is:
Carry water pump * A32/16A;
The injector amount of air drawn is: 3.5～5.5 meters
3/ hour;
Air pressure by air distribution plate is: 0.3～0.5kg/cm
2;
Eddy flow-inflation mixing tank is: D320, high 1000(mm);
Rotary fluid-solid separator is: φ 450, high 2200(mm);
Waste water is adjusted the pH ≈ 9 in pond, 2 liters of the gas floatation agents of waste water adding 1% per ton; Its treatment effect is listed in table one.(table sees the literary composition back)
Using purifier of the present invention and air flotation device of pressure air-dissolved (Shanghai environmental protection equipment factory product), is that 5 tons/hour system handles heavy metal wastewater thereby and compares test, its relevant table two that the results are shown in processing power.(table two is seen the literary composition back)
Can find out that from table one and table two swirl-aeration purifying water equipment of the present invention can both the high-speed continuous operation of high loading to all heavy metal wastewater therebies, and floor space and investment are less, have reduced energy consumption and have improved separation efficiency.
Table one. to containing Cu
2+The treatment effect of waste water
It is residual to contain each time test discharge drainage water in the waste water
Injector sucks
Cu
2+The residual Cu that contains in dried up
2+Cu
2+The concentration separation rate
Air capacity
The mean value of the ionic concn of sub-concentration (%)
（m
3/h）
（mg/l） （mg/l） （mg/l）
150 4.0 1.18，1.22，1.20 1.20 99.2
150 5.0 1.52，1.34，1.80 1.55 99.0
250 4.0 7.50，8.30，8.30 8.03 96.8
250 5.0 7.30，5.80，5.70 6.27 97.5
Table two. the processing of apparatus of the present invention and air flotation device of pressure air-dissolved is relatively
The separation of the device air supporting Sopwith staff cun device that every covered device is handled
(diameter * height) is equipped with accounts for the metallic consumption efficiency of water
Area peak concentration power (%) (mm of unit)
(unit: m
2) (mg/l) (KW)
Air flotation device of pressure air-dissolved Φ 1700 * 3,100 12 50～60 6.4～8.9 90
Apparatus of the present invention Φ 320 * 1,000 2～250 4.3＞97
Illustrate:
1. air flotation device of pressure air-dissolved should add 10～20 times of ferrous sulfate and makes the co-precipitation flocculation agent when handling trade effluent, and heavy metal can not Treatment for Reuse;
2. swirl-aeration device of the present invention is avoided secondary pollution to the equal energy of all heavy metal wastewater therebies Treatment for Reuse.
Claims (3)
1, a kind of waste water adjustment pond 3, transferpump 7, compressor 10, liquid-gas ejector 9 of comprising separates 16 air-float purifier admittedly with liquid one, it is characterized in that this device also has eddy flow-inflation mixing tank 13, this fills the device mixing tank is a cylinder, be divided into the mixing section 37 on top and plenum chamber 32 two portions of bottom by air distribution plate 34, inlet pipe 33 enters plenum chamber 32 from the side and stretches to the centerline bending downwards, liquid-inlet pipe 36 is communicated with mixing section 37 with tangential direction from the side, and the sea line of the axis of liquid-inlet pipe and mixing tank forms a downward angle theta
1The water pipe 38 of cleaning is arranged at mixing section 37 tops, clear water output 35 is arranged at the bottom, and liquid outlet 39 is arranged at this mixing tank top, and water port 31 is arranged at the bottom, said liquid one solid separator 16 is rotary fluid-solid separator, be a cylinder, its underpart is a rest chamber 42, and clear water output 41 is arranged at this rest chamber bottom, there is a feed-pipe 43 this separator side, and the sea line of its axis and separator forms an angle theta that makes progress
2The separator inner and upper is provided with clear water pipe 45 and the water conservancy diversion plate washer 44 that has aperture, this water conservancy diversion plate washer be circular and annular sheet alternately, and be fixed on the clear water pipe 45, slag-drip opening 46 is arranged at the separator top.
2, according to the described device of claim 1, the length-to-diameter ratio that it is characterized in that said eddy flow-inflation mixing tank 13 is 3: 1; Its liquid-inlet pipe 36 is a rectangular pipe, and the ratio of two edge lengths a, the b of square-section and the diameter D of mixing tank is D/a=6.2～10.8, D/b=16～20.8, the axis of liquid-inlet pipe and the formed angle theta of mixing tank sea line
1=4 °～10 °; The ventilative hole of its air distribution plate 34 is 10～50 microns.
3, according to the described device of claim 1, the length-to-diameter ratio that it is characterized in that said rotary fluid-solid separator 16 is 5: 1, its feed-pipe 43 is a rectangular pipe, two edge lengths c, the d of square-section and the ratio of separator diameter of phi are Φ/c=4～5.8, Φ/d=10.5～14.2, the axis of feed-pipe and the formed angle theta of the sea line of separator
2=4 °～10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN89100502A CN1023695C (en) | 1989-01-25 | 1989-01-25 | Swirl-aeration purifying water equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN89100502A CN1023695C (en) | 1989-01-25 | 1989-01-25 | Swirl-aeration purifying water equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1044446A CN1044446A (en) | 1990-08-08 |
| CN1023695C true CN1023695C (en) | 1994-02-09 |
Family
ID=4853889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN89100502A Expired - Fee Related CN1023695C (en) | 1989-01-25 | 1989-01-25 | Swirl-aeration purifying water equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1023695C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101590304B (en) * | 2009-07-02 | 2011-06-22 | 孙莉 | Comprehensive adjusting therapeutic instrument for meridians and collaterals of human bodies |
| CN108217800A (en) * | 2016-12-15 | 2018-06-29 | 黑龙江吉纳森生物工程股份有限公司 | A kind of molten gas supercharge system of oily waste water treatment tank |
| CN112899991A (en) * | 2019-12-04 | 2021-06-04 | 青岛海尔洗衣机有限公司 | Microbubble treating agent box assembly and washing equipment with same |
| CN112250274A (en) * | 2020-09-22 | 2021-01-22 | 中铁隧道集团二处有限公司 | Slurry treatment system and method for performing solid-liquid separation on shield waste slurry |
-
1989
- 1989-01-25 CN CN89100502A patent/CN1023695C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1044446A (en) | 1990-08-08 |
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