CN106587244A - Automatic controlled operating circular efficient air floatation device - Google Patents
Automatic controlled operating circular efficient air floatation device Download PDFInfo
- Publication number
- CN106587244A CN106587244A CN201710098800.5A CN201710098800A CN106587244A CN 106587244 A CN106587244 A CN 106587244A CN 201710098800 A CN201710098800 A CN 201710098800A CN 106587244 A CN106587244 A CN 106587244A
- Authority
- CN
- China
- Prior art keywords
- air
- water
- dissolving
- floating apparatus
- auto
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention provides an automatic controlled operating circular efficient air floatation device. The device comprises an air dissolving system, a dissolved air release device, an air floatation device body, a scum collection/discharge device and an automatic control device. The air dissolving system comprises a backflow booster pump, a dissolved air tank, a water power and air mixer and a compressed air inlet device. A backflow pipe on a water outlet pipe of the air floatation device body is connected to a dissolved air inlet of the dissolved air tank through the backflow booster pump. A discharge port of the dissolved air tank is connected to the dissolved air release device through the water outlet pipe. The air floatation device is of a circular structure and is composed of a contact region, a separation region and a water outlet device. A water outlet pipe of the water outlet device communicates with the water outlet pipe of the air floatation device body. The scum collection/discharge device is arranged on the air floatation device body. The automatic controlled operating circular efficient air floatation device is suitable for removing aquatic suspended matter, colloid, oily substances and macromolecular organic matter in the water treating process and can be used as both the pretreatment process in a water treatment system and a final process guarantee to control emissions of suspended matter.
Description
Technical field
The present invention relates to environmentally friendly water treatment field, the circular efficient air-floating apparatus of particularly a kind of auto-controll operation.
Background technology
, using quite extensively in water process, it both can be used as pretreatment unit in water treatment system, will for air-float technology
Oily substance, float, colloid, even algae substances in water is removed by pneumatically supported method, be can be used for again water-treated
In journey elsewhere, the float gone in eliminating water ensureing the stable operation of follow-up equipment or technique, may be also used in papermaking and
Mining processing industry, reclaims valuable material.Its principle is exactly to be sticked on pollutant using air bubble, produces the ratio with water
The method of double differences, in the presence of buoyancy, makes a kind of isolation technics of water and pollutant physical separation.
Pneumatically supported form mainly has following three kinds：One is to dissipate gas air supporting, and conventional cavitation air flotation is just belonging to this class.It
The power consumption of needs is relatively low, but the bubble distribution that it is produced is wider, and effluent quality is poor, can only be used as primary air supporting；Two are
Electrofloatation, is utilized in installing two positive and negative electrodes in air flotation slot, and logical unidirectional current.By the H produced in electrolysis water2And O2
As pneumatically supported source of the gas.Obviously the safety requirements of system is high, and operating cost is higher, but the bubble that it is produced is small and equal
Even, effect is preferable；Three is pressurized dissolved air flotation（DAF）, it is under pressure that air is soluble in water, then by molten gas
Water reduces pressure suddenly and the gas dissolved in water is discharged into the bubble of generation, and the bubble that this method is produced is smaller, distribution
Also than more uniform, it is mainly used in removing the higher technique of pollutant requirement, or the advanced treating after primary air supporting.DAF
It is also divided into full flow air-dissolving air-float and partial reflux air-dissolving air-float.Full flow air-dissolving air-float be need to all water to be processed all lead to
Molten gas equipment is crossed, the then decompression release in flotation tank.This method release is easily blocked, and the water yield of pressurization is big, power consumption compared with
It is high；Partial reflux pressurized dissolved air flotation is as dissolved air water, then in molten gas equipment using pneumatically supported product water section pressurization backflow
Mixing is contacted with compressed air carries out molten gas, then the bubble of the generation fine uniform that reduces pressure by release, and mixes with water inlet.Portion
Point air-dissolving air-float dissolved air water amount is little, and power consumption is little compared with full flow, and the capacity of returns deciding section of reflux pump backflow pressure air-dissolving
Pneumatically supported operating cost, i.e. reflux ratio are low, and operating cost is low.
What is be most widely used at present is part dissolved air flotation process（DAF）, but the following problem of generally existing：1）Return
Stream flow is bigger than normal, and typically all between 25～50%, the energy consumption of the force (forcing) pump that flows back is higher；2）The utilization rate of compressed air is relatively low, i.e.,
The dissolved efficiency of air is relatively low, and compressed air consumption is big；3）Undissolved air is carried in dissolving water outlet secretly, and these air pockets enter
Enter to be easily destroyed in flotation tank the separating effect of flotation tank；4）Limited by waterpower Spreading requirements, single set airfloat equipment is processed
Amount is less, for the system of larger process amount, needs the combination of many set airfloat equipments, takes up an area big；5）Cannot be according to amount of inlet water
Change with water quality adjusts dissolved air water amount, and effluent quality fluctuation is big；6）The method for generally scraping slag using scraper plate is removed the gred, easily
Perturbation action is produced to liquid level, pollutant air-teturning mixed phenomenon is produced, effluent quality is affected；7）Need the storage that scum silica frost is set at the scene
With transhipment facility, the workload of live operation maintenance is increased.
The content of the invention
It is an object of the invention to provide a kind of circular efficient air-floating apparatus of auto-controll operation, mainly solve above-mentioned existing
There is the technical problem existing for technology, its power consumption is low, the simple and molten gas efficiency high of molten gas mode, and reflux ratio is adjustable, automatic
Control operation, can be directly sent to the scum silica frost of collection processing system and be processed, and it is gone eliminating water suitable for water treatment procedure
Float, colloid, oily substance and larger molecular organicses, it both can again may be used as the pretreating process in water treatment system
Using as last guarantee technology controlling and process float discharge capacity.
For achieving the above object, the technical scheme is that：
A kind of circular efficient air-floating apparatus of auto-controll operation, it is characterised in that：It includes air dissolving system, molten gas release dress
Put, air-floating apparatus, scum silica frost collection/discharger and automaton；Wherein：The air dissolving system includes backflow force (forcing) pump, molten
Gas tank, waterpower air mixer, compressed air air intake installation；Return duct is connected by backflow force (forcing) pump on the air-floating apparatus outlet pipe
The dissolved air water entrance of dissolving is connected to, the entrance of the dissolved air water entrance and the waterpower air mixer installed in dissolving inner top
It is connected；The top of the dissolving is also provided with the mouth of pipe being connected with compressed air air intake control valve by compressed air piping；Should
The outlet of dissolving is connected to molten gas release device by outlet pipe；Dissolved air water after molten gas release device with it is pending
Water inlet mixing after enter air-floating apparatus；The air-floating apparatus are circular configuration, are made up of contact area, Disengagement zone, discharging device；Should
The outlet pipe connection air-floating apparatus outlet pipe of discharging device；Scum silica frost collection/discharger is provided with the air-floating apparatus, it can be with
Directly scum silica frost is sent to into processing equipment.
The circular efficient air-floating apparatus of described auto-controll operation, it is characterised in that：The waterpower air of the air dissolving system
It is some that there is blender the intersection of the nozzle of the high-velocity flow directive lower section mixing trunnion that will be produced, the nozzle and trunnion to be provided with
It is individual to enter passage with the outside compressed air for sucking dissolving top for communicating；The diffusing opening lower section of the trunnion is arranged to be divided
Hydrophone；The dissolving lower section arranges the outlet for discharging the dissolved air water stream for flowing downward to bottom, and the outlet passes through water outlet
Pipe is connected to molten gas release device.
The circular efficient air-floating apparatus of the auto-controll operation, it is characterised in that：It also includes existing for controlling current
The speed declined in dissolving and the level control unit of the time of staying；The level control unit includes being arranged on dissolving
Liquidometer and the control valve being arranged on dissolving outlet pipe.
The circular efficient air-floating apparatus of described auto-controll operation, it is characterised in that：Install in the dissolving one or
Multiple standard specificationss waterpower air mixers.
The circular efficient air-floating apparatus of described auto-controll operation, it is characterised in that：The backflow force (forcing) pump adopts frequency conversion
Control, backflow pressurization is automatically adjusted by the output signal of feed water flow gauge and water inlet online water analysis instrument by PLC
The frequency converter frequency of pump come change backflow force (forcing) pump flow, reach the function of stable effluent quality.
The circular efficient air-floating apparatus of described auto-controll operation, it is characterised in that：The dissolving compressed air air inlet
Compressed air air intake control valve is set on pipeline, the increment of compressed air can be automatically adjusted.
The circular efficient air-floating apparatus of described auto-controll operation, it is characterised in that：The molten gas release device is arranged on
On the inlet channel of air-floating apparatus contact area bottom, entrance and the dissolving bottom outlet pipe fluid level control valve of molten gas release device
Outlet connection.
The circular efficient air-floating apparatus of described auto-controll operation, it is characterised in that：The molten gas release device is throttling
Valve or restricting orifice, or it is evenly distributed on multiple dissolved air releases of contact area bottom.
The circular efficient air-floating apparatus of described auto-controll operation, it is characterised in that：The air-floating apparatus be air supporting tower or
Flotation tank, it is cylindrical structural, and it is by the contact area for being arranged on cylindrical center inner core and by inner core and air supporting tower or air supporting
Middle cylinder Disengagement zone between the wall in pond, and isolation area and the water leg composition of water outlet.
The circular efficient air-floating apparatus of described auto-controll operation, it is characterised in that：The discharging device of the air-floating apparatus
Isolation area, the water leg being provided in outside Disengagement zone, or using from Disengagement zone bottom uniform identical bore where appropriate
Outlet will produce water and discharge.
The circular efficient air-floating apparatus of described auto-controll operation, it is characterised in that：The discharging device of the air-floating apparatus
The height of water level of the uniform control air-floating apparatus of water distribution that air-floating apparatus are adjusted using adjustable effluent weir；If adopting
With the outlet at bottom of air-floating apparatus, need that constant fluid level control device is installed on outlet pipe.
The circular efficient air-floating apparatus of described auto-controll operation, it is characterised in that：Scum silica frost collection/the discharger is adopted
The Residue suction pump being connected with dreg-sucking machine with the dreg-sucking machine for adjusting rotary speed by electric rotating machine, rotating along cell body and by pipeline, and
Scum silica frost can be directly sent to scum treating equipment.
The invention has the advantages that：
1st, the present invention is mainly by air dissolving system, molten gas release device, air-floating apparatus（Flotation tank or air supporting tower）, scum silica frost collect/row
Go out device and the part of control device five composition.Air dissolving system is the characteristic for being dissolved in water under pressure using compressed air,
In dissolving compressed air is sufficiently mixed with pressure air-dissolving water using jet current principle, multiple-contact reaches the purpose of saturation,
Efficient utilization compressed air, it is ensured that dissolved air water and undissolved air are kept completely separate in dissolving, make the molten of outflow dissolving
Air water does not carry any undissolved bubble secretly.The dissolved air water source of this device is pneumatically supported part water outlet Jing backflows force (forcing) pump pressurization
Water outlet；The dissolved air water of saturation flows out and molten gas release device is sent to after dissolving, soluble in water after dissolved air water warp knuckle stream reduces pressure suddenly
Air discharge rapidly, form countless small bubbles（30～50 μm）Uniformly mix with pending water inlet, Ran Houyi
Rise and enter circular flotation tank（Tower）；Flotation tank（Tower）Also be made up of three parts, mainly there is contact area, a Disengagement zone, discharging device and
Slag absorbing（Slagging-off）Device is constituted.The flotation tank that raw water is entered after mixing with the water after the release of molten gas（Tower）Central contact
Area, first, in this zone in current uphill process, the micro-bubble for discharging sticks to float in water, microorganism and oil
In drop or larger molecular organicses；The subsequently upper radially even distribution in contact area enters Disengagement zone.Gas is adhered in Disengagement zone
The pollutant proportion of bubble is less than water, and pollutant in the presence of its buoyancy, during flowing to Disengagement zone periphery pollute by water radiation
Thing to the liquid level for floating to flotation tank forms scum silica frost, then by slag absorbing（Scrape slag）Device goes out the contaminant exclusion for emerging
Go, and the water after separating drops into water leg after collecting by the isolation baffle plate of periphery through effluent weir, is then out air supporting
Pond.A part of water outlet of outflow flotation tank is after the pressurization of molten gas reflux pump as dissolved air water.
2nd, in order to the dissolved air water after ensureing air and molten gas is completely separated, constant liquid level must be kept in dissolving
The time of staying with water in tank, for this purpose, arranging a set of constant liquis position control facility.Meanwhile, according to the water yield and pollutant of water inlet
Amount（Oil content or scopometer）The backflow water yield of backflow water pump is automatically adjusted, in the case where ensureing that effluent quality reaches requirement,
Optimization backflow force (forcing) pump dissolved air water amount and most suitable compressed air consumption, with ensure patent of the present invention it is efficient, stable,
Energy-saving run；Flotation tank（Tower）Scum silica frost discharger also can carry out auto-controll operation according to the water yield of water inlet and water quality, own
These controls are all realized automatically controlling by PLC control system.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
In figure：1st, flow back force (forcing) pump；2nd, return flow meter；3rd, dissolving；4th, waterpower air mixer；5th, nozzle；6th, larynx
Pipe；7th, air inlet；8th, anemostat；9th, water knockout drum；10th, liquidometer；11st, fluid level control valve；12nd, pressure releaser；13rd, intake
Valve；14th, feed water flow gauge；15th, the online water quality monitor of water inlet；16th, contact zone of dissolved air flotation；17th, Disengagement zone；18th, isolation area；19、
Water leg；20th, dreg-sucking machine；21st, electric rotating machine；22nd, Residue suction pump；23rd, flotation tank；24th, air supporting water outlet on-line computing model；25th, press
Contracting air inlet controls valve；26th, PLC.
Specific embodiment
Fig. 1 is referred to, the invention discloses a kind of circular efficient air-floating apparatus of auto-controll operation.As shown in the figure：This
Invention is belonging to partial reflux pressurized dissolved air flotation technique, but it has significant difference with the air supporting for using at present, and its power disappears
Consumption less, the simple and molten gas efficiency high of molten gas mode, reflux ratio is adjustable, the receipts slag that fully automatic operation, circular configuration and negative pressure are sucked
With slagging-off mode.It is mainly by air dissolving system（Comprising：Backflow force (forcing) pump 1, dissolving 3, waterpower air mixer 4）, molten gas releases
Put device 12, air-floating apparatus（Such as：Flotation tank or air supporting tower 23）, scum silica frost collection/discharger（Comprising：Dreg-sucking machine 20, electric rotating
Machine 21, Residue suction pump 22）And automaton（Comprising：PLC 26 and each control valve etc.）Five parts constitute.
In the present invention, air dissolving system is mainly by the compressed air air intake control valve 25 of molten gas force (forcing) pump 1, voltage stabilizing, dissolving 3
With the waterpower air mixer 4 in the dissolving, and fluid level control device（Including：Liquidometer 10, fluid level control valve
11）Composition.Molten gas principle is the characteristic for being dissolved in water under pressure using compressed air, in dissolving（3）Middle utilization is penetrated
Stream principle is sufficiently mixed compressed air in waterpower air mixer 4 with pressure air-dissolving water, and multiple-contact reaches the mesh of saturation
, efficient utilization compressed air, and ensure that dissolved air water and undissolved air are kept completely separate in dissolving 3, make the molten gas of outflow
The dissolved air water of tank 3 does not carry any undissolved bubble secretly, and the dissolved air water source of this device is pneumatically supported part water outlet Jing backflow pressurizations
The water of pump 1.
The dissolved air water of saturation flows out and molten gas release device 12 is reached after dissolving, molten after dissolved air water warp knuckle stream reduces pressure suddenly
The air of Yu Shuizhong is discharged rapidly, forms countless small bubbles（30～50 μm）Uniformly mix with pending water inlet,
Then circular flotation tank 23 is entered together.
Flotation tank 23 is also made up of four parts, mainly there is contact area 16, Disengagement zone 17, discharging device（Such as include：Isolation area
18th, water leg 19）Constitute with scum silica frost collection/discharger（Including：Dreg-sucking machine 20, electric rotating machine 21, Residue suction pump 22）.Raw water with
The central contact zones 16 of the flotation tank 23 entered after the water mixing after dissolved air release 12, first, in this zone on current
Sticking to float, microorganism and oil droplet or macromole in water with the micro-bubble collision rift for discharging during rising has
On machine thing, subsequently in the upper radially even into Disengagement zone 17 of contact area 16；And the water after separating is by periphery
Isolation area 18 drops into water leg 19 after collecting through effluent weir, is then out flotation tank 23.Its part water outlet is returned by molten gas
As dissolved-air pressure water after the stream pressurization of force (forcing) pump 1.
In Disengagement zone 17 adhere to bubble pollutant proportion be less than water, they in the presence of buoyancy, with water radiant flux
Form scum silica frost to the liquid level for floating to flotation tank 23 to pollutant during the periphery of Disengagement zone 17, then by dreg-sucking machine 20,
Electric rotating machine 21, Residue suction pump 22 exclude the scum silica frost for emerging,
In order to the dissolved air water after ensureing air and molten gas is completely separated, constant liquid level must be kept in dissolving 3 and is stopped
The time is stayed, for this purpose, arranging a set of fluid level control device controlled by PLC 26（Including：Liquidometer 10, fluid level control valve
11）；Meanwhile, according to the water yield of water inlet（Measured by feed water flow gauge 14）With Inlet and outlet water amount of pollutant（Oil content or scopometer）
（By intaking, the gentle emersion water on-line computing model 24 of online water quality monitor 15 is measured）Automatically adjust the backflow of backflow pressure pump 1
The water yield, in the case where effluent quality is ensured, optimizes backflow dissolved air water amount and suitable compressed air increment, to ensure this
Efficient, the stable, energy-saving run of invention；And the discharger of the scum silica frost of flotation tank 23（Such as：Electric rotating machine 21, Residue suction pump 22）Also can
According to the water yield of water inlet（Measured by feed water flow gauge 14）And water quality（By intaking, online water quality monitor 15 is measured）Carry out automatically
Control operation, all these controls are all realized by the PLC 26 specially developed.
The use process of apparatus of the present invention is as follows：
The part water outlet of flotation tank 23 is sent to the dissolved air water entrance of dissolving 3 after the force (forcing) pump 1 that flows back pressurizes as power water source,
The entrance is connected with the entrance of the waterpower air mixer 4 installed in the inner top of dissolving 3.The top of dissolving is also provided with one
The mouth of pipe being connected with compressed air piping, is adjusted by compressed air air intake control valve 25 and air is sent to molten gas after pressure
The top of tank 3.Backflow power water after pressurization initially enters the entrance of waterpower air mixer 4, and then power water is empty in waterpower
The mixing trunnion 6 of the lower section of high-velocity flow directive nozzle 5, the flow velocity control of current mass flowing nozzle 5 are produced at the nozzle 5 of gas blender 4
System is between 10～20m/s.In the presence of jet, nozzle 5 and the intersection of trunnion 6 can produce certain negative pressure.In waterpower air
The nozzle 5 of blender 4 and the intersection of trunnion 6 are provided with several air inlets 7 communicated with outside, in the presence of negative pressure, will
The compressed air suction on the top of dissolving 3, mixes, then in the diffusing opening 8 of the outlet of trunnion 6 strongly with power water in trunnion 6
Eject, after diffusing opening, the additional air without dissolving is separated from water air-water mixture, and dissolved air water impact is located at
On water knockout drum 9 below diffusing opening, water makes water contact again with the air of the internal upper part of dissolving 3 again to around sputtering, and reaches
After being substantially saturated state, trickle down on the water surface in dissolving 3.The dissolved air water of saturation is similar to the shape of piston in dissolving 3
Formula progressively flows downward, and further will likely be separated from water without the air of dissolving in flow process, and air returns to dissolving 3
The air chamber of internal upper part, continues to be reused as source of the gas.The dissolved air water stream for flowing downward to the bottom discharge outlet of dissolving 3 is discharged to
Molten gas release device 12.In order to meet being completely separated for dissolved air water and insoluble air, the air not dissolved is not carried secretly, control
The speed that current decline in tank is in 50～150m3/m2/ h, the time of staying is between 2～5min.For this reason, it may be necessary to arrange a set of water
Level control device, it is by the liquidometer 10 on dissolving and the control valve 11 being arranged on the outlet pipe of dissolving 3.It is logical
Efficient air dissolving system more than crossing, the air saturation of dissolved air water all can more than 95%, the consumption of compressed air than relatively low, and
And the required recirculation water water yield only processes the 10～20% of the water yield, realizes the purpose of energy-conservation.
According to the size of single set disposal ability, one or more standard specificationss waterpower air can be installed in dissolving 3 and mixed
Clutch 4, the system that the significantly change process water yield can be tackled.In order to solve amount of inlet water and variation water quality to air supporting effluent quality
Impact, to amount of inlet water（By feed water flow gauge 14）And water quality（By online water quality monitor 15 of intaking）With flotation tank 23
The water quality of water outlet（By air supporting water outlet on-line computing model 24）Monitored on-line, the signal of monitoring is sent to into PLC 26
Computing is carried out, then output signal, the flow of backflow force (forcing) pump 1 is adjusted by converter technique, it is ensured that the backflow operation work of force (forcing) pump 1
Condition works on the premise of effluent quality is met.The measuring instrument of water quality can by remove contaminant species species difference, if
It is set to oily on-line computing model and/or monitoring turbidimeter.
The dissolved air water flowed out from the bottom of dissolving 3 is sent to the molten gas being arranged on the contact area bottom water inlet of flotation tank 23 and releases
Device 12 is put, molten gas release device 12 can be one group of multiple choke valve, or one group of orifice plate, to prevent the molten gas release device 12 can
Can be blocked by bulky grain pollutant, it is also possible to by several molten gas release devices 12 uniformly installed in the bottom of contact area 16.
After molten gas release device 12 suddenly decompression, the air being dissolved in dissolved air water can be discharged immediately, form nothing
Several micro-bubbles, these bubbles in the central contact zones 16 of flotation tank 23 with enter water pollutant making contact after, stick to
On polluter, contact area 16 to Disengagement zone 17 is overflowed with current, the flowing of radiation direction circumferencial direction adheres to the pollution of bubble
Thing slowly floats to liquid level because proportion is less than water in the presence of buoyancy, and the horizontal direction with current is pooled to flotation tank
Around 23, become scum silica frost.The scum silica frost for collecting rotates slag absorbing by being arranged on being controlled by electric rotating machine 21 at the top of flotation tank 23
Machine 20, siphons away under the swabbing action of the entrance negative pressure of Residue suction pump 22, and is sent to scum silica frost processing meanss and is further processed.Slag absorbing
Mounting rotary electric machine 21 on machine 20, it is slow during slag absorbing to rotate dreg-sucking machine 20, by the scum silica frost of the liquid level periphery of flotation tank 23 not
It is disconnected to suction out.Liquid after separating in Disengagement zone 17 flows upward to adjustable water outlet behind the gap of the bottom of isolation area 18
Weir, drops into water leg 19 after effluent weir, and then gravity flow is discharged, and the current part of discharge is pressurizeed as recirculation water Jing backflows
Become dissolved air water after pump 1.Water outlet after separation can also adopt multiple outlets of the periphery for arranging the bottom of flotation tank 23
Discharge mode substitutes the mode of effluent weir and water leg, but flotation tank constant liquis position control facility must be installed on outlet pipe.
According to the data for entering the water process water yield and the detection of water-in and water-out pollutant in-line meter, by the PLC controls of special exploitation
Device processed 26 automatically adjusts the water yield of the flow of backflow force (forcing) pump 1 to change dissolved air water and reaches the metastable purpose of gas-solid ratio；
Adjust the bottom outlet water control valve 11 of dissolving 3, the water level in constant dissolving（Measured by liquidometer 10）；Simultaneously according to water inlet water
Amount（Measured by feed water flow gauge 14）The velocity of rotation of dreg-sucking machine 20 and the slag absorbing amount of Residue suction pump 22 are adjusted with the change of water quality.It is logical
Cross efficient dissolved air water power air mixing device 4 and water quality is obtained according to Inlet and outlet water（By the online He of water quality monitor 15 of intaking
Air supporting water outlet on-line computing model 24 is measured）Dissolved air water backflow water yield is automatically adjusted, before the effluent quality for ensureing flotation tank 23
Put, reduce molten gas backflow water yield, the energy consumption of optimization backflow force (forcing) pump 1.
Embodiment 1, the process water yield of single set are 1250m3/ h efficient air-floatings
The present embodiment removes the float of water inlet using efficient air-floating, meets control of the discharge of wastewater to float after biochemistry and refers to
Mark, flotation tank enters aqueous suspension in 30～100mg/l.
The present embodiment efficient air-floating arranges 1 dissolving, and the waterpower air mixer of 6 groups of standards is installed in it, they
3 groups and 6 groups of two states will can be run according to capacity of returns, corresponding reflux ratio is 5～10%.
The float stability contorting of the water outlet after air-flotation process is in below 20mg/l.Every automatic running of dreg inhaling device 2
Hour.
Pending water adjusts stream after flow and arrives the circular center water inlet of flotation tank 23 through water intaking valve 13, subsequently into
Contact area 16.Raw water and the product after the molten releases of gas release device 12 of the dissolved air water Jing of dissolving 3 before into contact area
Together stream enters the contact area 16 of inner core after the water mixing of raw microbubble, during flowing on the flow direction median of contact area 16 in water
Pollutant and microbubble making contact, make microbubble stick to above contaminant particle, then overflow contact area 16, flow to middle cylinder
Disengagement zone 17, adhere to bubble pollutant float up to liquid level formed scum silica frost, the periphery of flotation tank 23 is then pooled to, by
The heart is rotated dreg inhaling device（Electric rotating machine 21 and dreg-sucking machine 20 are constituted）, the scum silica frost for constantly confluxing is inhaled with Residue suction pump 22
Go out.Water after separation is pooled to isolation area 18, flows up Jing after effluent weir drops to water leg 19, and flotation tank is flowed out in gravity flow
23。
The part water outlet of flotation tank 23（10～20%）Backflow enters dissolving 3 after pressurizeing as the pressurized water pump 1 of dissolved air water
In waterpower air mixer 4 entrance, pressurize recirculation water first Jing waterpower air mixer 4 nozzle 5 produce high-velocity flow
The trunnion 6 that directive is disposed below, produces between nozzle 5 and trunnion 6 certain negative pressure in course of injection（Relative to hydraulic pressure
For）, the compressed air on the top of dissolving 3 is sucked into trunnion 6 by air inlet 7, backflow water and air is mixed strongly in trunnion 6
Close, tentatively air is dissolved in the recirculation water of pressurization, then air-water mixture sprays trunnion 6 and spreads into coupled bottom
Pipe 8, immediately directive is located at the water knockout drum 9 below anemostat 8 to mixing wastewater with air liquid.Dissolved air water and undissolved air are in anemostat 8
Initial gross separation is obtained between outlet and water knockout drum 9, water knockout drum 9 is subsequently clashed into, the top to dissolving 3 splashes, dissolved air water and sky
Gas is further contacted, and improves the saturation of dissolved air water, is then spilt to the liquid level in dissolving 3.Consume because being dissolved in water
Air, is continuously replenished into by being arranged on the compressed air air intake control valve 25 at the top of dissolving 3.Fall the dissolved air water of liquid level
Outlet is slowly drop down in the bottom of dissolving 3 and flows out dissolving, then flow to the molten gas release device of the base pressure of flotation tank 23
12 entrance.
Flotation tank automatically controls by following measures to realize.
The device for supplying of compressed air is, using constant voltage regulating device 25, the air for consuming constantly to be supplemented to dissolving 3.It is molten
The liquid level of gas tank 3（Measured by liquidometer 10）It is to be realized by being arranged on the control valve 11 of the bottom of dissolving 3.Backflow pressurization
The flow of pump 1 is the water yield by intaking（Measured by feed water flow gauge 14）With the online water quality testing meter of water-in and water-out（By water inlet
The online gentle emersion water on-line computing model 24 of water quality monitor 15 is measured）Signal, through PLC 26 process after give
The converter of backflow force (forcing) pump 1 is adjusting the water yield of water pump.The rotating speed of dreg-sucking machine 20 and the flow of Residue suction pump 22 are also that basis is entered
The water quality signal of water is adjusted what is controlled through the converter that PLC 26 is sent to backflow pump motor.
Embodiment 2, the process water yield are 50m3/ h efficient air-floatings remove the water outlet containing sludge after biochemistry.
The total suspended matter of water inlet is 150～400mg/l, arranges 1 dissolving, and inside is installed 1 standard hydraulic air and mixed
Clutch, waterpower air mixer is exerted oneself as 5～10m3/ h, the pressure stability of molten gas is in 5.0 bar or so.Raw water is through appropriate
Dosing coagulation after, into flotation tank.When capacity of returns is 15%, the total float of water outlet is less than 20mg/l, and COD is also with outstanding
The removal of float also accordingly reduces 10～30%.
Embodiment 3, the process water yield are 50m3/ h efficient air-floatings remove Oil in Sewage Water class material.
The oily substance of water inlet is 50～400mg/l, arranges 1 dissolving, and 1 standard hydraulic air mixing is installed in inside
Device, waterpower air mixer is exerted oneself as 5～10m3/ h, the pressure stability of molten gas is in 5.0 bar or so.Raw water is through appropriate
After dosing coagulation, demulsification, into flotation tank.When capacity of returns is 10～15%, water outlet oily substance is less than 20mg/l, COD
Also 20～40% are also accordingly reduced with the removal of float.
In sum be only presently preferred embodiments of the present invention, not for limit the present invention practical range.It is i.e. all
The equivalence changes made according to the content of scope of the present invention patent and modification, all should be the technology category of the present invention.
Claims (12)
1. circular efficient air-floating apparatus of a kind of auto-controll operation, it is characterised in that：It includes air dissolving system, molten gas release dress
Put（12）, air-floating apparatus, scum silica frost collection/discharger and automaton；Wherein：The air dissolving system includes backflow force (forcing) pump
（1）, dissolving（3）, waterpower air mixer（4）, compressed air air intake control valve（25）；Returning on the air-floating apparatus outlet pipe
Flow tube is by the force (forcing) pump that flows back（1）It is connected to dissolving（3）Dissolved air water entrance, the dissolved air water entrance be arranged on dissolving
（3）The waterpower air mixer of inner top（4）Entrance be connected；The dissolving（3）Top be also provided with by compressed air hose
Road and compressed air air intake control valve（25）The mouth of pipe being connected；The dissolving（3）Bottom discharge outlet by outlet pipe connect
To molten gas release device（12）；The air-floating apparatus are circular configuration, by contact area（16）, Disengagement zone（17）, discharging device composition；
The outlet pipe connection air-floating apparatus outlet pipe of the discharging device；Scum silica frost collection/discharger is provided with the air-floating apparatus.
2. circular efficient air-floating apparatus of auto-controll operation according to claim 1, it is characterised in that：The air dissolving system
Waterpower air mixer（4）With the high-velocity flow directive lower section mixing trunnion that will be produced（6）Nozzle（5）, the nozzle（5）
And trunnion（6）Intersection be provided with that several communicate with outside for sucking dissolving（3）The air inlet of the compressed air on top
Hole（7）；The trunnion（6）The diffusing opening of hypomere（8）Lower section arranges water knockout drum（9）；The dissolving（3）Lower section has will flow downward
The outlet discharged to bottom of dissolved air water stream, the outlet is connected to molten gas release device by outlet pipe（12）.
3. circular efficient air-floating apparatus of auto-controll operation according to claim 2, it is characterised in that：It also include for
Control current are in dissolving（3）Middle decrease speed and the level control unit of the time of staying；The level control unit includes installing
In dissolving（3）On liquidometer（10）Be arranged on dissolving（3）Control valve on outlet pipe（11）.
4. circular efficient air-floating apparatus of auto-controll operation according to claim 2, it is characterised in that：The dissolving
（3）It is interior that one or more standard specificationss waterpower air mixers can be installed（4）.
5. circular efficient air-floating apparatus of the auto-controll operation according to claim 1 or 2 or 3 or 4 or 5, its feature exists
In：The backflow force (forcing) pump（1）Using VFC, by feed water flow gauge（14）With water inlet online water analysis instrument（15）Output
Signal passes through PLC（26）Backflow force (forcing) pump is automatically adjusted after computing（1）Converter frequency come change backflow pressurization
Pump（1）Flow.
6. circular efficient air-floating apparatus of the auto-controll operation according to claim 1 or 2 or 3 or 4 or 5, its feature exists
In：The dissolving（3）Compressed air air intake control valve is set on compressed air inlet pipe road（25）.
7. circular efficient air-floating apparatus of the auto-controll operation according to claim 1 or 2 or 3 or 4 or 5, its feature exists
In：The molten gas release device（12）Installed in air-floating apparatus contact area（16）On the inlet channel of bottom, molten gas release device
（12）Entrance and dissolving（3）Bottom outlet pipe fluid level control valve（11）Outlet connection.
8. circular efficient air-floating apparatus of auto-controll operation according to claim 8, it is characterised in that：The molten gas release
Device（12）Can be choke valve or restricting orifice, or be evenly distributed on contact area（16）The multiple molten gas release of bottom
Device.
9. circular efficient air-floating apparatus of the auto-controll operation according to claim 1 or 2 or 3 or 4 or 5, its feature exists
In：The air-floating apparatus are air supporting tower or flotation tank（23）, it is cylindrical structural, and it is by being arranged on connecing for cylindrical center inner core
Tactile area（16）With by inner core and air supporting tower or flotation tank（23）Wall between middle cylinder Disengagement zone（17）, and the isolation area of water outlet
（18）And water leg（19）Composition.
10. circular efficient air-floating apparatus of the auto-controll operation according to claim 1 or 2 or 3 or 4 or 5, its feature exists
In：The discharging device of the air-floating apparatus is provided in Disengagement zone（17）Outer isolation area（18）, water leg（19）, or using from
Disengagement zone（17）The outlet of uniform identical bore will produce water and discharge where bottom is appropriate.
The circular efficient air-floating apparatus of 11. auto-controll operations according to claim 1 or 2 or 3 or 4 or 5, its feature exists
In：The discharging device of the air-floating apparatus adjusts the uniform control air-floating apparatus of water distribution of air-floating apparatus using adjustable effluent weir
Height of water level；If using air-floating apparatus Disengagement zone outlet at bottom, needs install fluid level control device on outlet pipe.
The circular efficient air-floating apparatus of 12. auto-controll operations according to claim 1 or 2 or 3 or 4 or 5, its feature exists
In：Scum silica frost collection/the discharger is adopted by electric rotating machine（21）Adjust rotary speed, the dreg-sucking machine rotated along cell body（20）、
And by pipeline and dreg-sucking machine（20）The Residue suction pump of connection（22）Composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710098800.5A CN106587244A (en) | 2017-02-23 | 2017-02-23 | Automatic controlled operating circular efficient air floatation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710098800.5A CN106587244A (en) | 2017-02-23 | 2017-02-23 | Automatic controlled operating circular efficient air floatation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106587244A true CN106587244A (en) | 2017-04-26 |
Family
ID=58587882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710098800.5A Pending CN106587244A (en) | 2017-02-23 | 2017-02-23 | Automatic controlled operating circular efficient air floatation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106587244A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107601728A (en) * | 2017-11-14 | 2018-01-19 | 河南清波环境工程有限公司 | The anti-air supporting flocks sewage disposal system for seething function of the automatic exhaust of band |
| CN114100247A (en) * | 2021-11-22 | 2022-03-01 | 佛山市富龙环保科技有限公司 | Novel useless emulsion is handled device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2103551U (en) * | 1991-09-07 | 1992-05-06 | 航空航天部航空工业规划设计研究院 | Pressurized air-dissolution air-floated water treatment device |
| FR2796306A1 (en) * | 1999-07-13 | 2001-01-19 | Roumen Kaltchev | DISSOLVED AIR CLARIFIER WITH INCORPORATED FILTER |
| CN103693706A (en) * | 2013-12-27 | 2014-04-02 | 中国矿业大学(北京) | Air floatation device for treating ABS (acrylonitrile butadiene styrene) industrial wastewater |
| CN104671321A (en) * | 2015-03-12 | 2015-06-03 | 大庆市海油庆石油科技有限公司 | Efficient dissolved air flotation machine |
| US20160060137A1 (en) * | 2013-07-04 | 2016-03-03 | Shi Chun Yang | Dissolved Air Flotation Device |
-
2017
- 2017-02-23 CN CN201710098800.5A patent/CN106587244A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2103551U (en) * | 1991-09-07 | 1992-05-06 | 航空航天部航空工业规划设计研究院 | Pressurized air-dissolution air-floated water treatment device |
| FR2796306A1 (en) * | 1999-07-13 | 2001-01-19 | Roumen Kaltchev | DISSOLVED AIR CLARIFIER WITH INCORPORATED FILTER |
| US20160060137A1 (en) * | 2013-07-04 | 2016-03-03 | Shi Chun Yang | Dissolved Air Flotation Device |
| CN103693706A (en) * | 2013-12-27 | 2014-04-02 | 中国矿业大学(北京) | Air floatation device for treating ABS (acrylonitrile butadiene styrene) industrial wastewater |
| CN104671321A (en) * | 2015-03-12 | 2015-06-03 | 大庆市海油庆石油科技有限公司 | Efficient dissolved air flotation machine |
Non-Patent Citations (2)
| Title |
|---|
| 刘强: "《一种新型气浮 膜生物组合工艺》", 31 October 2016, 中国矿业大学出版社 * |
| 罗辉: "《环保设备设计与应用》", 31 March 1997, 高等教育出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107601728A (en) * | 2017-11-14 | 2018-01-19 | 河南清波环境工程有限公司 | The anti-air supporting flocks sewage disposal system for seething function of the automatic exhaust of band |
| CN107601728B (en) * | 2017-11-14 | 2023-12-26 | 河南清波环境工程有限公司 | Air-floatation flocculation sewage treatment system with automatic exhaust and anti-tumbling functions |
| CN114100247A (en) * | 2021-11-22 | 2022-03-01 | 佛山市富龙环保科技有限公司 | Novel useless emulsion is handled device |
| CN114100247B (en) * | 2021-11-22 | 2022-11-25 | 佛山市富龙环保科技有限公司 | Waste emulsion treatment device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103936093B (en) | A kind of high-efficiency dissolved air flotation system | |
| CN107337263B (en) | Vertical flow type coagulating sedimentation and air flotation dual-purpose tank | |
| CN206126930U (en) | Modular backward flow pressure dissolves gas air supporting device | |
| CN208394822U (en) | A kind of assembled set air flotation processing device | |
| CN105855067B (en) | A kind of unpowered flotation device | |
| CN202152290U (en) | Pressurized dissolved-air floating system | |
| CN202346794U (en) | Integrated cavitation/dissolved air flotation machine | |
| CN104341021A (en) | Progressive air floatation apparatus | |
| CN106587244A (en) | Automatic controlled operating circular efficient air floatation device | |
| CN115231729A (en) | Full-automatic control operation's high-efficient dissolved air flotation device | |
| CN203890088U (en) | Efficient dissolved air flotation system | |
| CN201240959Y (en) | Integrated sewage water preprocessing equipment | |
| CN207608351U (en) | Sewage disposal current stabilization air-floating apparatus | |
| CN103030229B (en) | Oily wastewater treatment device and treatment method in steel industry | |
| CN206843118U (en) | A kind of circular efficient air-floating apparatus of auto-controll operation | |
| CN107381866A (en) | Integrated high efficiency mud-water separation purifier | |
| CN105417780A (en) | Water treatment technology | |
| CN214936196U (en) | Circular efficient air floatation equipment capable of automatically controlling operation | |
| CN204981223U (en) | Novel cavitation air supporting machine | |
| CN208648808U (en) | A kind of air flotation device of pressure air-dissolved | |
| CN203382600U (en) | ASP (Alkali-Surfactant-Polymer)-flooding water-reinjection-treatment deoiling system | |
| RU110368U1 (en) | WATER TREATMENT PLANT USING PRESSURE FLOTATION | |
| CN107473440A (en) | A kind of device for improving ozone utilization rate in multistage ozone air-float technique | |
| CN102557177A (en) | Impeller cutting type vortex air floatation device | |
| CN214653770U (en) | High-efficient shallow layer air supporting device of nanometer microbubble |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |