CN206069474U - A kind of oily waste water electric flocculation depth air-flotation system - Google Patents
A kind of oily waste water electric flocculation depth air-flotation system Download PDFInfo
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Abstract
This utility model is related to a kind of oily waste water electric flocculation depth air-flotation system, Slag Scraping Device in electrolytic flocculation system is located at the top of electrolysis bath, for the solid waste that processing equipment flocculation-air floating is produced, and discharged by scum silica frost outlet, qualified discharge clear water is discharged by clear liquid outlet；Air-dissolving air-float system is mixed into flocculant in the inlet channel section of air-dissolving air-float groove, make a large amount of float flocculations in water outlet, release at steam high pressure mixing to release device is produced a large amount of microbubbles and wraps up flocculate by Jing air dissolved pumps, which is made to float up to the water surface, Jing Slag Scraping Devices remove water surface flocculate, and final outflow water overflow is to Rinsing Area.This utility model adopts thtee-stage shiplock breakdown of emulsion, demulsification is good, equipment application scope is wide, equipment can be improved to equipment according to water quality treatment, increase or the quantity of reduction Faradaic current and battery lead plate, adjustable interval and size thickness, through two grades of depth air supportings, up to 90% or so, clearance containing oily substance is up to more than 95% for COD clearances.
Description
Technical field
This utility model is related to emulsifying wastewater disposal technology field, more particularly to a kind of oily waste water electric flocculation depth
Degree air-flotation system.
Background technology
Emulsion is widely used in machining, car engine machining, cooling and the lubrication of rolling Kun and steel plate, emulsion
Used as a kind of intractable industrial wastewater, chemical stability and pollutional load are high for waste water.Related data shows, emulsifying liquid waste water
In oil quality at concentrations up to 15000～20000mg/L, up to 18000～35000mg/L, BOD is up to 5000～10000mg/ for COD
L, is the performance for improving emulsion, needs to add a large amount of additives, such as oiliness additive, EP agent, rust-inhibiting additive, anti-
Mould additive, anti-foaming additive etc. so that emulsion composition is extremely complex, intractability are increased.Process emulsion at present to give up
Water mainly adopts chemical coagulation process, co-coagulating gas-floating method, electrolytic flocculation method, advanced oxidation processes, ultrafiltration, biochemistry combination process,
Wherein co-coagulating gas-floating method, electrocoagulation grow up on the basis of chemical coagulation.Electrolytic flocculation method is with soluble metal
Make electrode, metal loses electronics and is oxidized under electric field action, generate hydroxide colloid, using absorption and cohesion and electricity
The redox reaction occurred in solution preocess realizes the removal to greasy dirt.As the method can greatly reduce the use of coagulated agent
Amount and high treating effect, the sludge quantity of generation are low, are oil-containing oil emulsion processing methods more used in current Practical Project.
Electric flocculation is gone in eliminating water using the metal hydroxidess flocculation that soluble metal anode is produced in electrolytic process
The water treatment technology of polluter.In reality, anode material is generally easy to get and inexpensive metal using aluminum, ferrum etc., by taking Al as an example,
Under its elementary process：
Anode reaction：Al+3e→Al3+
Cathode reaction：2H2O+2e→H2↑+2OH-
Hydrolysis：Al3++3OH-→Al(OH)3↓
Electrolytically generated aluminum hydroxide precipitation has good flocculation, absorption property, effectively can go to decontaminate from waste water
Dye material.When being electrolysed simultaneously, the hydrogen of negative electrode precipitation, oxygen can form a large amount of small bubbles, imitate with good dissolved air flotation
Really, in addition, electrolytic process Anodic surface can occur electrochemical oxidation reactions, and it is electrolysed the aluminium ion for producing and negative electrode separates out
Hydrogen in statu nascendi is with compared with strong reducing property, therefore electric flocculation technique also has oxidoreduction function.
In the presence of DC electric field, the method mainly has three kinds of mechanisms：Anode ferrum corrosion, through hydrolysis, polymerization
And the oxidizing process of aluminum, multinuclear hydroxo complex is formed, flocculation is produced, powered contaminant particle is swum in the electric field
It is dynamic, its Partial charge by electrode and it is de- it is steady precipitate, the anodizing of water-soluble organic matter.
Existing electrolytic flocculation device process oleaginous material and COD concentration it is high oil-containing oil emulsion when, one-level is electrolysed past
It is past to accomplish qualified discharge.
Utility model content
There is a problem of that breakdown of emulsion is unstable, equipment consumption is big, water quality treatment is unstable, this reality for existing electrochemistry breakdown of emulsion
A kind of oily waste water electric flocculation depth air-flotation system is to provide with new purpose, to solve deficiency of the prior art.
In order to achieve the above object, the purpose of this utility model is achieved through the following technical solutions：
A kind of oily waste water electric flocculation depth air-flotation system is provided, including the power pack, electrolytic flocculation system that are connected with each other
System and air-dissolving air-float system, the electrolytic flocculation system include water inlet, one-level electrolysis bath, second electrolyser, three-level electrolysis bath,
First Slag Scraping Device, scum silica frost outlet and clear liquid outlet, the one-level electrolysis bath, the second electrolyser, the three-level electrolysis bath
Be sequentially connected, every grade of electrolysis bath bottom is equipped with evacuation port, first Slag Scraping Device be located at the one-level electrolysis bath, described two grades
The top of electrolysis bath and the three-level electrolysis bath, for the solid waste that processing equipment flocculation-air floating is produced, and by the scum silica frost
Outlet is discharged, and qualified discharge clear water after treatment is discharged by clear liquid outlet；The air-dissolving air-float system include air dissolved pump,
Release device, the second Slag Scraping Device, overflow pipe, Rinsing Area and the air-dissolving air-float groove with inlet channel section, in the air-dissolving air-float
The inlet channel section of groove is mixed into flocculant, makes a large amount of float flocculations in water outlet, and air dissolved pump described in Jing is by steam high pressure mixing
A large amount of microbubbles are produced to release at the release device to wrap up flocculate so as to float up to the water surface, described in Jing, second scrapes slag
Machine removes water surface flocculate, and final outflow water is by the overflow pipe overflow in the middle part of equipment to the Rinsing Area；The power pack
Including DC source and high frequency switch power.
Above-mentioned oily waste water electric flocculation depth air-flotation system, wherein, the one-level electrolysis bath, the second electrolyser and institute
Board-like electrolysis electrode is mounted in stating three-level electrolysis bath, the electrolytic anode plate of the board-like electrolysis electrode is Al material electrodes
Plate, electrolytic negative plate are SUS316 stainless steel polar plates.
Above-mentioned oily waste water electric flocculation depth air-flotation system, wherein, the high frequency switch power includes control circuit, detection
Circuit, protection circuit, input filter, rectifier filter, inverter and output rectification filter device, the input filter is by electricity
The clutter that net is present is filtered, while hinder the clutter for producing to feed back to public electric wire net, the rectifier filter is by electrical network alternating current
The direct rectification in source is smoother unidirectional current, and so that next stage is converted, the unidirectional current after rectification is changed into high frequency by the inverter
Alternating current, the output rectification filter device need to provide DC source according to load；The control circuit is sampled from outfan, Jing
The inverter is controlled after being compared with established standardses, it is stable to reach output to change its frequency or pulsewidth, while according to institute
Stating test circuit and data being provided, protection circuit described in Jing differentiates, various protective measures is carried out to whole machine.
Compared with the prior art, the beneficial effects of the utility model are：
This utility model adopts thtee-stage shiplock breakdown of emulsion, and by emulsion complete breakdown of emulsion, demulsification is good, equipment application scope
Extensively, equipment can be improved to equipment according to water quality treatment, the quantity of Faradaic current and battery lead plate needed for increasing or reducing, can
Adjustment spacing and size thickness, through two grades of depth air supportings, COD clearances up to 90% or so, clearance containing oily substance
Up to more than 95%.
Description of the drawings
The accompanying drawing for constituting a part of the present utility model is used for providing further understanding to of the present utility model, and this practicality is new
The schematic description and description of type is used to explain this utility model, does not constitute to improper restriction of the present utility model.
In accompanying drawing：
Fig. 1 shows the structural representation of electrolytic flocculation system in this utility model oily waste water electric flocculation depth air-flotation system
Figure.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only this utility model a part of embodiment, rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of this utility model protection.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in this utility model can
To be mutually combined.
This utility model oily waste water electric flocculation depth air-flotation system, including the power pack, electrolytic flocculation that are connected with each other
System and air-dissolving air-float system, with reference to shown in Fig. 1, electrolytic flocculation system includes water inlet 1, one-level electrolysis bath 2, second electrolyser
3rd, three-level electrolysis bath 4, the first Slag Scraping Device 5, scum silica frost outlet 6 and clear liquid outlet 7, one-level electrolysis bath 2, second electrolyser 3, three-level
Electrolysis bath 4 is sequentially connected, and every grade of electrolysis bath bottom is equipped with evacuation port 8, and it is electric that the first Slag Scraping Device 5 is located at 2, two grades of one-level electrolysis bath
The top of solution groove 3 and three-level electrolysis bath 4, for the solid waste that processing equipment flocculation-air floating is produced, and exports 6 rows by scum silica frost
Go out, qualified discharge clear water after treatment is discharged by clear liquid outlet 7.Air-dissolving air-float system include air dissolved pump, release device,
Second Slag Scraping Device, overflow pipe, Rinsing Area and the air-dissolving air-float groove with inlet channel section, in the inlet channel section of air-dissolving air-float groove
Flocculant is mixed into, makes a large amount of float flocculations in water outlet, Jing air dissolved pumps produce release at steam high pressure mixing to release device
Flocculate is wrapped up by a large amount of microbubbles of life so as to float up to the water surface, and the second Slag Scraping Devices of Jing remove water surface flocculate, final outflow water by
Overflow pipe overflow in the middle part of equipment is to Rinsing Area.Power pack includes DC source and high frequency switch power.
This engineering is provided with an electrofloatation device, and, up to 5t/h, wherein each electrolysis bath is by polypropylene for electrolysis demulsification amount
PP materials are mutually isolated, and waste emulsion is entered in electrolysis installation, are electrolysed through three-level and cause breakdown of emulsion, while electrolytic anode aluminium sheet Jing is electric
Solution forms Al (OH)3Aluminium powder and waste residue in colloid adhesion waste emulsion, forms flco, then the H produced by catholyte2、O2Bubble
Flco is flotated to into the water surface, water surface scum silica frost is struck off to greasy dirt groove by Slag Scraping Device.Waste emulsion Jing electrolytic flocculations system is disposed, can be by
Oil-water separation in waste emulsion, removes most waste residue in waste emulsion.
Battery lead plate layout using different gap design, 0-35 ㎜ are adjustable in positive/negative plate gap, electrode lay-out using symmetrically with
Asymmetric arrangement is combined.Can run for continuous 24 hours.The life-span has been because the medium in sewage is different for the board-like service life of electrode
Difference, each formula electrode is designed according to sewage characteristic, belongs to nonstandard product, it is desirable to cover electrode spare unit using the standing 1-2 of producer.
Electrode splits four electrolysis baths,:1# grooves --- pre-oxidation De-emulsification flocculent；2# grooves --- De-emulsification flocculent air supporting；3#, 4# groove --- flocculation
Dissolved air flotation.1# trough plate type electrode groups, totally 3 groups, anode material is Ai-6061, electrolytic oxidation area 5.4m, and cathode material is
SUS304, electroreduction area 6.48m.Metal ion in electrolytic process in water can form oxide and is attached on pole plate,
It is required that each week is once cleared up to pole plate.Such as can not clear up in time, then resistive layer can be formed in polar board surface, hinder conductive
The normal operation of body.The method of cleaning is rinsed to pole plate gap using giant.2# trough plate type electrode groups, totally 2 groups, sun
Pole material is Ai-6061, electrolytic oxidation area 2.53m2.Cathode material is SUS304, electroreduction area 2.82m2.In electrolysis
During require setting the work of falling pole, prevent pole plate fouling and passivation, it is desirable to which every month carries out full maintenance cleaning to pole plate.
Totally 4 groups of 3#, 4# plate type electrode group, anode material are Ai-6061, electrolytic oxidation area 3.38m2.Cathode material is SUS304, electricity
Solution goes back original area 6.76m2.The setting work of falling pole is required in electrolytic process, pole plate fouling and passivation is prevented, it is desirable to every month pair
Pole plate carries out full maintenance cleaning.Battery lead plate specification：1#：L=600mm；B=150mm；H=25mm；2-4#：L=
640mm；B=110mm；H=20mm.
DC source is that using low pressure current stabilization, electric current is preferential from exchange input direct-current output, SCR type rectifier power source
Control principle.The DC source that this equipment is equipped with is manufactured by Chengdu road and electronics research.DC source cooling system is adopted
Water cooling, keeps the supply of cooling water, can not interrupt cooling water in electric power starting.Power input：1#AC380V/50Hz；Electricity
Source exports:CD60V, electric current：150A；Power：Peak power output：9000W.h；Load connected mode：Series connection, maximum power dissipation：
3000W.h.2#AC380V/50Hz/DC36V, electric current：150A, peak power output 5400W.h；Load connected mode：Series connection,
Maximum power dissipation：2700W.h.3rd, 4#AC380V/50Hz/DC36V, electric current：150A, peak power output 5400W.h；Load connection
Mode：Series connection, maximum power dissipation：1350W.h.Automatically controlled cabinet panel is equipped with and off switch and power control system, and power output end
(direct current) controlling switch and voltage, electric current adjust turn-knob and digital display voltage, and ammeter (is exported), it is desirable to installed additional and electricity using producer
The suitable input control system of source power, to ensure the operation safety of equipment.Should check that power supply is opened first before start operation
Close whether in off position, whether voltage x current adjusts to turn round to be zeroed and position (rotate counterclockwise zero position) connecting wire should be carried out
Check, walkaround inspection is carried out to equipment, has seen without exception, require that input 380V inputs are opened confirming that exception meets start
Close, then unlatching output end switch, voltage turn-knob is opened into highest order normally when digital display meter shows, then electric current is adjusted to regulation
In the range of current work.Electric current adjusting range 1#70%～90%, i.e.,：105～135A；2#60%～80%, i.e.,：90～
120A；3-4#80%～90%, i.e.,：120～135A.This equipment is that electric current is preferential, the principle of constant current operation, voltage, electric current
Linear relationship depends on the conducting medium content (electric conductivity) in polar plate spacing and water.
The specific workflow of this device is：Emulsifying wastewater before water inlet adjusts pH value through homogenizing, by intaking
Mouthful enter to inside device, in initially entering one-level electrolysis bath, carry out one-level electrolysis, one-level decomposition voltage is 60V, electric current 150A,
40 minutes time of staying, after one-level electrolytic tank electrolysis, liquid does two grades of electrolysis into second electrolyser to emulsion stream, two grades
Decomposition voltage is 36V, and electric current 150A, 40 minutes time of staying, liquid carry out three-level electrolysis, three-level electrolysis into three-level electrolysis bath
Voltage is 36V, 150A, and 40 minutes time of staying, final liquid are discharged by outlet, and the solid that every grade of electrofloatation is produced is by scraping
Slag machine is excluded to greasy dirt groove.
High frequency switch power is input into from AC network, the overall process of direct current output, input filter：Effect is to deposit electrical network
Clutter filter, while also hinder the machine produce clutter feed back to public electric wire net.Rectification and filtering：By electrical network alternating current power supply
Directly rectification is smoother unidirectional current, so that next stage is converted.Inversion：Unidirectional current after rectification is changed into into high-frequency alternating current,
This is the core of high frequency switch power, and frequency is higher, and the ratio of volume, weight and output is less.Output rectification and filter
Ripple：According to load needs, there is provided reliable and stable DC source.
On the one hand control circuit is sampled from outfan, and Jing is compared with established standardses, is then gone to control inverter, is changed
Its frequency or pulsewidth, reach output and stablize, and on the other hand, according to the data that test circuit is provided, Jing protection circuits differentiate, there is provided
Control circuit carries out various protective measures to whole machine.Detection circuit is currently running outside middle various parameters in providing protection circuit, also
Various display instrument data are provided.Accessory power supply provides the difference of all single circuits and requires power supply.Voltage is indicated：Indicate work
When output DC voltage and current indicate：Indicate to export DC current intervalometer during work：When controlling manually, the working time is set
While controlling (PLC, the working time is determined by PLC), 99 points of maximum setting time 99 hours.As needed, once set, repeat to grasp
Make.
Finally, certain aluminum plate ＆ strip hot-rolling workshop 30t/d waste emulsified mixture, after this utility model breakdown of emulsion air supporting, effluent quality
Jing water intaking detection chemical examinations, water quality result COD are less than 150mg/L, and clearance more than 90% is less than 0.5mg/L containing oily substance, goes
Except rate more than 98%, ss suspended solid is less than 5mg/L, clearance more than 95%.
From above-described embodiment as can be seen that advantage of the present utility model is：
This utility model adopts thtee-stage shiplock breakdown of emulsion, and by emulsion complete breakdown of emulsion, demulsification is good, equipment application scope
Extensively, equipment can be improved to equipment according to water quality treatment, the quantity of Faradaic current and battery lead plate needed for increasing or reducing, can
Adjustment spacing and size thickness, through two grades of depth air supportings, COD clearances up to 90% or so, clearance containing oily substance
Up to more than 95%.
Above specific embodiment of the utility model is described in detail, but this utility model has been not restricted to the above
The specific embodiment of description, which is intended only as example.To those skilled in the art, any equivalent modifications and substitute also all
Among category of the present utility model.Therefore, done impartial conversion under without departing from spirit and scope of the present utility model
And modification, should all cover in the range of this utility model.
Claims (3)
1. a kind of oily waste water electric flocculation depth air-flotation system, it is characterised in that including the power pack, electrolysis wadding that are connected with each other
Solidifying system and air-dissolving air-float system, the electrolytic flocculation system include water inlet, one-level electrolysis bath, second electrolyser, three-level electricity
Solution groove, the first Slag Scraping Device, scum silica frost outlet and clear liquid outlet, the one-level electrolysis bath, the second electrolyser, three-level electricity
Solution groove is sequentially connected, and every grade of electrolysis bath bottom is equipped with evacuation port, and first Slag Scraping Device is located at the one-level electrolysis bath, described
The top of second electrolyser and the three-level electrolysis bath, for the solid waste that processing equipment flocculation-air floating is produced, and by described
Scum silica frost outlet is discharged, and qualified discharge clear water after treatment is discharged by clear liquid outlet；The air-dissolving air-float system includes molten
Air pump, release device, the second Slag Scraping Device, overflow pipe, Rinsing Area and the air-dissolving air-float groove with inlet channel section, in the molten gas
The inlet channel section of air flotation slot is mixed into flocculant, makes a large amount of float flocculations in water outlet, and air dissolved pump described in Jing is by steam high pressure
Mix to the release device release and produce a large amount of microbubbles and flocculate is wrapped up so as to float up to the water surface, second described in Jing
Slag Scraping Device removes water surface flocculate, and final outflow water is by the overflow pipe overflow in the middle part of equipment to the Rinsing Area；The power supply
Part includes DC source and high frequency switch power.
2. oily waste water electric flocculation depth air-flotation system as claimed in claim 1, it is characterised in that the one-level electrolysis bath, institute
Board-like electrolysis electrode, the electrolytic anode of the board-like electrolysis electrode are mounted in stating second electrolyser and the three-level electrolysis bath
Plate is Al material battery lead plates, and electrolytic negative plate is SUS316 stainless steel polar plates.
3. oily waste water electric flocculation depth air-flotation system as claimed in claim 1, it is characterised in that the high frequency switch power bag
Include control circuit, detection circuit, protection circuit, input filter, rectifier filter, inverter and output rectification filter device, institute
The clutter filtration that electrical network is existed by input filter is stated, while hindering the clutter for producing to feed back to public electric wire net, the rectification filter
Electrical network alternating current power supply direct rectification is smoother unidirectional current by ripple device, and so that next stage is converted, the inverter is by after rectification
Unidirectional current be changed into high-frequency alternating current, the output rectification filter device needs to provide DC source according to load；The control electricity
Road is sampled from outfan, controls the inverter, change its frequency or pulsewidth defeated to reach Jing after being compared with established standardses
Go out to stablize, while data is provided according to the test circuit, protection circuit described in Jing differentiates, various protections are carried out to whole machine and is arranged
Apply.
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| CN201621080019.2U CN206069474U (en) | 2016-09-26 | 2016-09-26 | A kind of oily waste water electric flocculation depth air-flotation system |
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| CN201621080019.2U CN206069474U (en) | 2016-09-26 | 2016-09-26 | A kind of oily waste water electric flocculation depth air-flotation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107867740A (en) * | 2016-09-26 | 2018-04-03 | 上海和惠生态环境科技有限公司 | A kind of oily waste water electric flocculation depth air-flotation system |
| CN113582298A (en) * | 2021-08-09 | 2021-11-02 | 奇瑞商用车（安徽）有限公司 | Electrolytic separation type paint mist treatment device |
-
2016
- 2016-09-26 CN CN201621080019.2U patent/CN206069474U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107867740A (en) * | 2016-09-26 | 2018-04-03 | 上海和惠生态环境科技有限公司 | A kind of oily waste water electric flocculation depth air-flotation system |
| CN113582298A (en) * | 2021-08-09 | 2021-11-02 | 奇瑞商用车（安徽）有限公司 | Electrolytic separation type paint mist treatment device |
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Effective date of registration: 20230217 Address after: 901-2, Building 36, Hangzhou Bay New Economic Park, Hangzhou City, Zhejiang Province, 310000 Patentee after: Zhejiang Hehui Ecological Environment Technology Co.,Ltd. Address before: 200129 Room 1518, Building 1, No. 100, Jinyu Road, Pilot Free Trade Zone, Pudong New Area, Shanghai Patentee before: SHANGHAI HEHUI ECOLOGICAL ENVIRONMENTAL TECHNOLOGY CO.,LTD. |
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