CN115321639A - System for removing floating oil in oily sewage - Google Patents
System for removing floating oil in oily sewage Download PDFInfo
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- CN115321639A CN115321639A CN202211256376.XA CN202211256376A CN115321639A CN 115321639 A CN115321639 A CN 115321639A CN 202211256376 A CN202211256376 A CN 202211256376A CN 115321639 A CN115321639 A CN 115321639A
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- 239000010865 sewage Substances 0.000 title claims abstract description 51
- 238000007667 floating Methods 0.000 title claims abstract description 37
- 238000003756 stirring Methods 0.000 claims abstract description 230
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 151
- 239000002699 waste material Substances 0.000 claims abstract description 138
- 238000000926 separation method Methods 0.000 claims abstract description 67
- 239000007788 liquid Substances 0.000 claims abstract description 42
- 238000003860 storage Methods 0.000 claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims description 111
- 230000008859 change Effects 0.000 claims description 27
- 239000002351 wastewater Substances 0.000 claims description 20
- 238000007599 discharging Methods 0.000 claims description 15
- 238000012544 monitoring process Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 abstract description 10
- 235000019198 oils Nutrition 0.000 description 408
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- 230000002159 abnormal effect Effects 0.000 description 2
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- 235000013547 stew Nutrition 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
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Classifications
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- 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- 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
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/008—Originating from marine vessels, ships and boats, e.g. bilge water or ballast water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/42—Liquid level
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Removal Of Floating Material (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention relates to a system for removing floating oil in oily sewage, which solves the problems of low separation efficiency, low separation purity, small equipment applicability, high equipment cost and the like in the prior art, and adopts the technical scheme that: the oil-water separation system for the oily sewage comprises a cabin body and a collecting box, and is characterized by further comprising a first pipeline, a second pipeline and third pipeline oil, wherein the first pipeline, the second pipeline and the third pipeline oil are respectively connected with a stirring oil skimming tank matched with three pipelines, an oil-water separation oil skimming device is arranged in the stirring oil skimming tank, the stirring oil skimming tank is connected with a waste oil tank, a first liquid level meter is arranged on the waste oil tank, the first liquid level meter monitors the capacity of the waste oil tank in real time and feeds the capacity back to a control terminal of a marine cloud bin, and the oil-water separation oil skimming device is started through the control terminal. The effect is as follows: the automatic operation of oil-water separation is realized, the oil-water separation efficiency is improved, the oil skimming purity is favorably improved, and the capacity sharing of each storage tank in the bin body is realized.
Description
Technical Field
The invention relates to auxiliary equipment of an ocean cloud bin, in particular to a system for removing floating oil in oily sewage.
Background
Oily water generated by marine ships cannot be well collected and treated all the time, so that the marine environment is influenced, and certain difficulty is caused in marine environment treatment. The scheme that adopts at present sets up ocean cloud storehouse at the harbour and docks ocean boats and ships, transports ocean cloud storehouse inside with ocean boats and ships' oily water, and ocean cloud storehouse is used for depositing oily water, carries out oil, separation of water to oily water again, collects the waste oil of separating out in the oily water and shifts to the waste oil jar in, and the later stage is transported the waste oil in the waste oil jar by the waste oil car again and is reprocessed the recovery.
Currently, the known oil-water separation methods usually adopt free precipitation, centrifuges or vertical stirring, and the separation methods have various problems. Problems with free-settling separation: the completion separation time is longer, and the oil-water separation effect is unsatisfactory, can not smash the impurity of greasy dirt aquatic, and during oil was sneaked into in partial impurity come-up, the oil slick purity was not high, influences the degree of difficulty and the cost of transporting back waste oil treatment recovery. Problems with centrifuge type separation: the equipment cost is higher, and the method is not suitable for treating large-capacity oily water. Problems with vertical agitation separation: agitating unit need set up the center at the container, uses the scene to have the limitation, relies on stirring vane's horizontal tangential force to accelerate oil droplet collision frequency simultaneously, makes oil droplet bond into big oil droplet and floats fast, to each part of stirring vane's vertical direction, moves up gradually along with stirring vane stirring central point puts, and stirring efficiency weakens gradually, and consequently, stirring vane's whole stirring efficiency is lower relatively.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provide an oil-containing sewage floating oil removal system, wherein a stirring oil skimming tank is connected with a waste oil tank, a first liquid level meter is arranged on the waste oil tank, and the capacity of the waste oil tank is monitored in real time through the first liquid level meter, so that a control terminal starts an oil skimming device for oil-water separation, the automatic operation of oil-water separation is realized, the efficiency of oil-water separation is improved, the oil skimming purity is favorably improved, and the capacity sharing of each storage tank in a bin body is realized.
The technical purpose of the invention is mainly solved by the following technical scheme: the utility model provides a oily sewage floating oil gets rid of system, includes the storehouse body, sets up the take-over box on the storehouse body, be equipped with oily water entry, oily waste water export and waste oil export on the take-over box, its characterized in that the internal stirring skimming tank that is equipped with in storehouse, the stirring skimming tank passes through the oil storage pipeline and is connected with a waste oil tank, set up first level gauge on the waste oil tank, oily water entry with through first pipeline intercommunication between the stirring skimming tank, oily waste water export with through second pipeline intercommunication between the stirring skimming tank, waste oil export with through third pipeline intercommunication between the stirring skimming tank, set up oil-water separation skimming device in the stirring skimming tank, first level gauge real-time supervision the capacity of waste oil tank, and feed back to the control terminal of ocean cloud storehouse, through control terminal starts oil-water separation skimming device skimming.
The device is provided with a first pipeline for storing oily water, a second pipeline for discharging separated oily wastewater and a third pipeline for discharging separated waste oil, so that the ocean cloud bin can automatically complete the operations of storage, separation, discharge and the like under the control of the control terminal according to requirements in a circulating and reciprocating manner, or can perform any one of storage, separation and discharge according to requirements, or can perform any two operations.
The oil skimming device has the advantages that the stirring oil skimming tank is connected with a waste oil tank, the first liquid level meter is arranged on the waste oil tank, the capacity of the waste oil tank is monitored in real time through the first liquid level meter, the control terminal starts the oil skimming device for oil-water separation, the automatic operation of oil-water separation is realized, the efficiency of oil-water separation is improved, the oil skimming purity is favorably improved, and the capacity sharing of each storage tank in the bin body is realized.
As a further improvement and supplement to the above technical solution, the present invention adopts the following technical measures: the waste oil tank is also provided with an alarm liquid level switch, and the alarm liquid level switch is used for monitoring the limit capacity of the waste oil tank and giving an alarm; the first liquid level switch is used for detecting a preset liquid level in the stirring oil skimming tank, the oil-water separation oil skimming device is started when the preset liquid level is reached, and after oil-water separation is finished, the oil skimming electromagnetic valve, the vacuum oil guiding tank and the vacuum oil guiding pump start oil skimming and skimming waste oil flows into the waste oil tank to be stored.
The oil storage pipeline is provided with a vacuum oil leading pump, a vacuum oil leading tank and an oil skimming electromagnetic valve; the oil skimming electromagnetic valve is used for enabling the oil skimming device to start oil skimming, and the vacuum oil guide pump is used for vacuumizing the vacuum oil guide tank and enabling the skimming waste oil to flow into the waste oil tank.
The oil skimming electromagnetic valve is used for enabling the oil skimming device to start oil skimming, and the vacuum oil guide pump is used for vacuumizing the vacuum oil guide tank and enabling the skimming waste oil to flow into the waste oil tank.
The oil-water separation oil skimming device comprises a stirring shaft which is arranged in a suspension manner, stirring blades which are arranged at the lower end of the stirring shaft, a driving mechanism which drives the stirring to rotate and swing simultaneously, and an oil skimming device which is used for skimming waste oil floating on the surface after oil-water separation; the stirring shaft rotates by taking the axis of the stirring shaft as a center line, swings by taking the upper end of the stirring shaft as a swing fulcrum, and swings by taking the vertical axis of the stirring shaft as a symmetrical center line, and the stirring shaft swings by taking the symmetrical center line as an axis and is used for driving the stirring blades to swing and rotate for stirring.
Adopt the agitating unit who makes stirring vane oscillating rotary motion, stirring vane carries out the swing of multi-angle change when rotatory stirring, forms the stirring tangential force of multi-angle change, and its beneficial effect is as follows:
1. make the oil in the greasy dirt aquatic and water mix more abundant to can relax and fully break up the impurity of caking in the greasy dirt aquatic, avoid during impurity come-up sneaks into waste oil, in order to do benefit to and improve the oil slick purity, and the waste oil of come-up when making the stirring accomplish after stew forms obvious density difference with other material (oily sewage, wherein contain impurity), makes the water oil separating effect better, makes things convenient for follow-up oil skimming, improves oil skimming efficiency.
2. Stirring vane is the stirring of multi-angle slope, and each position of stirring vane all has sufficient level and cuts to power, makes each position of stirring vane all have enough strong stirring efficiency, makes oil drip high efficiency collision knot become big oil drip quick come-up.
3. The stirring range can be enlarged, the stirring skimming tank is suitable for the stirring volume of the stirring skimming tanks with different sizes, the applicability is improved, and the intermittent driving stirring and skimming tank is adopted, so that the structure is simplified, and the equipment cost is saved.
When oily sewage oil slick got rid of system and drops into the application, stirring oil skimming case forms through the oily water entry on first pipeline and the takeover case and is connected, make the outside oily water high efficiency of ocean cloud storehouse go into storehouse to stirring oil skimming case, drive mechanism drives agitating unit earlier and carries out abundant stirring to the oily water in the stirring oil skimming case, make the high-efficient big oil droplet come-up that bonds of waste oil, after the stirring period, agitating unit stops the stirring, and the oily water period of stewing, the waste oil is abundant come-up, drive mechanism drives oil skimming device, the waste oil that floats in the surface is left aside, waste oil can go out the storehouse through the third pipeline and transports away, also can pass through the oil storage pipeline and temporarily save in the waste oil tank. The separated oily sewage can be temporarily stored in an oily sewage storage tank in the ocean cloud storehouse, and can also be taken out of the storehouse through a second pipeline to be transported away.
Preferably, a first electromagnetic valve and a second electromagnetic valve are arranged on the third pipeline, a fourth pipeline is arranged between the third pipeline and the waste oil tank, one end of the fourth pipeline is arranged between the first electromagnetic valve and the second electromagnetic valve and communicated with the third pipeline, the other end of the fourth pipeline is communicated with an inner cavity of the waste oil tank, an oil concentration detector, the third electromagnetic valve and a waste oil discharging pump are arranged on the fourth pipeline, and the first electromagnetic valve and the second electromagnetic valve are matched to enable the separated waste oil to be discharged from the bin through the third pipeline or discharged from the bin through the fourth pipeline and the first electromagnetic valve.
When delivering from the warehouse through the third pipeline, the first electromagnetic valve and the second electromagnetic valve are both opened.
When the waste oil is discharged from the bin through the fourth pipeline and the first electromagnetic valve, the second electromagnetic valve is closed, so that one section of third pipeline between the second electromagnetic valve and the stirring skimming tank is closed, the waste oil at the inner end of the stirring skimming tank is discharged into the waste oil tank, and then the waste oil is communicated with the road section of the third pipeline between the fourth pipeline, the first electromagnetic valve and the connecting pipe box and discharged from the waste oil outlet of the connecting pipe box.
Preferably, the first pipeline is provided with a first pump, a first pressure gauge and a first flow meter.
The first pump is used for enabling the oily water to enter the bin to the stirring oil skimming tank, and the first pressure gauge is used for monitoring the pressure change in the first pipeline in real time and judging the normal abnormal condition of the oily water entering the bin.
The first flow meter is used for monitoring the flow data of the oily water in the first pipeline in real time, synchronizing the data to the control terminal of the ocean cloud bin and displaying the real-time flow data on the display screen of the control terminal.
A second pump and a second flowmeter are arranged on the second pipeline; the second pump is used for discharging separated oily wastewater which sinks to the lower portion of the stirring oil skimming box through the oily wastewater outlet, the second flowmeter monitors flow data of the oily wastewater in the second pipeline in real time, synchronizes the data to a control terminal of the ocean cloud bin, and simultaneously displays the real-time flow data on a display screen of the control terminal.
The oil skimmer on the oil skimming device is matched with the driving mechanism, the driving mechanism is used for driving the oil skimmer to ascend or descend, when the stirring blades stir, the driving mechanism enables the oil skimmer to ascend and leave oily water, and when stirring is completed and waste oil floats on the surface of the oily water, the driving mechanism enables the oil skimmer to descend for oil skimming.
The driving mechanism comprises a power mechanism, a rotary swing mechanism and a lifting mechanism, the rotary swing mechanism and the lifting mechanism are driven by the power mechanism, the power mechanism drives the rotary swing mechanism and the lifting mechanism to intermittently act, the rotary swing mechanism is used for enabling the stirring shaft to swing while rotating, and the lifting mechanism is used for enabling the oil skimmer to ascend or descend.
Corresponding to the technical scheme, the method is embodied as an improvement point: the stirring work and the oil skimming work are completed intermittently by one driving mechanism, and the stirring work and the oil skimming work are avoided being completed respectively by two sets of driving mechanisms, so that the setting cost and the assembly cost of the driving mechanisms are reduced, the failure rate is reduced, the effective working efficiency of the oily water and floating oil removing device of the ocean cloud bin is improved, and the shutdown maintenance probability is reduced.
Because the stirring blade is soaked in the oil sewage, when the swing amplitude of the stirring blade is larger, the consumed kinetic energy is also larger, a high-power motor needs to be configured, and the stirring blade is easy to damage. Therefore, the swing amplitude and the speed of the stirring blades are relatively reduced through the speed change mechanism, when the swing amplitude and the speed of the stirring blades are reduced, the energy consumption can be reduced, the power of a motor is reduced, the large oil drops can be quickly gathered under the multi-angle tangential force action of the stirring blades, the oil-water separation efficiency is improved, the protection of the stirring blades is facilitated, and the service life of the stirring blades is prolonged.
The upper end of the oil skimmer is provided with a plurality of oil skimming ports, and the oil skimming ports are arranged to facilitate the waste oil to flow into the oil skimmer.
The oil skimmer is provided with a floating oil thickness measuring instrument, a triangular support is arranged below the oil skimmer, and each support leg on the triangular support is provided with a floating ball. The angle that struts through the A-frame makes the height-adjustable of oil skimming mouth, can adjust oil skimming mouth's position according to the thickness of oil slick, convenient accurate oil skimming. Particularly, the support legs of the triangular support are opened and distributed in a triangular shape by combining the buoyancy of the floating ball with the self weight of the oil skimmer.
The oil skimmer is characterized in that a screw is arranged at the bottom of the oil skimmer and is in threaded connection with the triangular support, and the screw is used for enabling the oil skimmer to be arranged on the triangular support and adjusting the distance between the oil skimmer and the triangular support. During operation, according to the oil slick thickness measuring instrument who sets up on the A-frame (generally set up at the top of A-frame) detect the thickness of oil slick and come adjusting screw, adjust the distance between oil skimmer bottom to the A-frame top, make the oil skimming mouth position adaptation oil slick thickness, make oil skimming convenient more, high-efficient and effective.
The invention has the following beneficial effects:
1. the oil skimming device has the advantages that the stirring oil skimming tank is connected with a waste oil tank, the first liquid level meter is arranged on the waste oil tank, the capacity of the waste oil tank is monitored in real time through the first liquid level meter, the control terminal starts the oil skimming device for oil-water separation, the automatic operation of oil-water separation is realized, the efficiency of oil-water separation is improved, the oil skimming purity is favorably improved, and the capacity sharing of each storage tank in the bin body is realized.
2. The collecting box is at least provided with an oily water inlet, an oily wastewater outlet and a waste oil outlet which are respectively communicated with the stirring oil skimming box through a first pipeline, a second pipeline and a third pipeline, and the automatic control, high-efficiency and accurate warehousing can be realized at a control terminal; the separated waste oil and oily sewage are efficiently and accurately delivered out of a warehouse or respectively enter a waste oil tank and an oily sewage storage tank for temporary storage.
3. Stirring and oil skimming of the oil-water separation system of the oil-contaminated water are automatically controlled through a control terminal, a group of driving devices are adopted to intermittently drive the stirring device and the oil skimming device, and the stirring blades are enabled to rotate in a reciprocating swing mode within a certain angle range. Simultaneously can also accomodate the oil skimmer, prevent that the oil skimmer from long-term bubble in greasy dirt waste water, lead to partial impurity caking to adsorb on the oil skimmer, block up the oil skimming mouth on the oil skimmer.
4. The reciprocating swing type rotation of (mixing) shaft, stirring vane have the stirring tangential force of multi-angle change for the frequency of collision of oil dripping in the greasy dirt aquatic can be accelerated, guarantee that each position of stirring vane can the full play stirring effect, improve oil-water separation's efficiency, further improve oil skimming efficiency and purity.
5. The waste oil tank is arranged in the ocean cloud storehouse and used for storing the skimmed waste oil, so that the purity of the waste oil is guaranteed, and meanwhile, the separated oily sewage can be stored in the oily sewage storage tank.
6. The stirring work and the oil skimming work are completed intermittently by one driving mechanism, and the stirring work and the oil skimming work are avoided being completed respectively by two sets of driving mechanisms, so that the setting cost and the assembly cost of the driving mechanisms are reduced, the failure rate is reduced, the effective working efficiency of the oily water and floating oil removing device of the ocean cloud bin is improved, and the shutdown maintenance probability is reduced.
7. After the mixture is fully stirred and stands for about 5 minutes, the oil-water separation efficiency basically reaches 96-98 percent, and the high separation efficiency can be achieved in a relatively short time.
Drawings
Fig. 1 is a schematic structural diagram of an oil-water separation system of oil-contaminated water according to the invention.
Fig. 2 is a schematic structural diagram of an oil-water separation integrated mechanism according to the present invention.
Fig. 3 isbase:Sub>A schematic view of the structure in the direction ofbase:Sub>A-base:Sub>A in fig. 2.
Fig. 4 is a schematic view of a structure of the oil skimmer according to the present invention.
FIG. 5 is a schematic view of a construction of the oil skimmer of FIG. 4.
Fig. 6 is a schematic structural diagram of a marine cloud storage according to the present invention.
Fig. 7 is a graph showing the change in the water content of the oil contaminated water, which was obtained by performing the experiments using the system and method according to the present invention.
In the figure: 1, a cabin body; 2, a pipe receiving box; 3 a first pump; 4, a first pressure gauge; 5 a first flow meter; 6 a second flow meter; 7 a first solenoid valve; 8 a second solenoid valve; 9 an oil concentration detector; 10 a first level gauge; 11 alarm liquid level switch; 14 a waste oil pump; 16 a waste oil tank; 18 a vacuum oil pump; 19 vacuum oil drainage tank; 20 an oil skimming solenoid valve; 21 a second level switch; 22 stirring the oil skimming tank; 23 a second pump; 30 oil-water separation integrated mechanism; 31, hanging a top block; 32 fixed blocks; 33 worm gear sleeve; 34 a turbine; 35 a first swing arm; 36 a second swing arm; 37 connecting rods; 38 a third swing arm; 39 a first speed change gear; 311 a transition wheel; 312 stirring shaft; 313 stirring blades; 314 rotating the shaft; 315 a first gear; 316 a second rotating shaft; 317 a paying-off wheel; 318 second gear; 319 a third gear; 321 drive motor; 322 power rail; 323 a motor base; 324 a second ratio gear; 325 an output shaft; 326 rotating the ball; 40 oil skimmers; 41 oil skimming port; 42 a mounting seat; 43 floating oil thickness measuring instrument; 44 a floating ball; 45 feet; 46 a triangular bracket; 47 a pipe mount; 48 flexible pipes; 49 a flange mount; 51 vacuum oil-leading pump; 52 a screw rod; 61 a first conduit; 62 a second conduit; 63 a third line; 64 a fourth line; 65 oil storage pipelines; 71 an oily water inlet; 72 an oily wastewater outlet; 73 waste oil outlet.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example 1: as shown in fig. 1-6, a system for removing oil slick from oily sewage comprises a bin body 1, a pipe receiving box 2 arranged on the bin body, and an oil-water separation integrated mechanism 30 arranged in the bin body. The collecting box 2 is provided with an oily water inlet 71, an oily waste water outlet 72 and a waste oil outlet 73. The oil-water separation integrated mechanism 30 at least comprises a stirring oil skimming tank 22 and an oil-water separation oil skimming device.
The internal stirring skimming tank 22 that is equipped with of storehouse, oily water inlet with through first pipeline 61 intercommunication between the stirring skimming tank 22, oily waste water outlet with through second pipeline 62 intercommunication between the stirring skimming tank 22, the waste oil export with through third pipeline 63 intercommunication between the stirring skimming tank 22.
The device is provided with a first pipeline for storing the oily water, a second pipeline for discharging the separated oily wastewater and a third pipeline for discharging the separated waste oil, so that the work of storing, separating (separating the oily water), discharging (separating the waste oil and the oily wastewater after separating the oily water) and the like can be automatically completed by the ocean cloud storehouse under the control of the control terminal according to the requirement in a circulating and reciprocating manner, or any work of storing, separating and discharging can be performed according to the requirement, or two works can be selected at will.
The stirring oil skimming tank 22 is internally provided with an oil-water separation oil skimming device which comprises a stirring shaft 312 which is arranged in a suspension way, a stirring blade 313 which is arranged at the lower end of the stirring shaft, a driving mechanism which drives the stirring to rotate and swing simultaneously, and an oil skimming device which is used for skimming waste oil floating on the surface after oil-water separation; the stirring shaft rotates by taking the axis of the stirring shaft as a center line and swings by taking the upper end of the stirring shaft as a swing fulcrum, the axis of the stirring shaft in a vertical state is taken as a symmetrical center line, the stirring shaft swings by taking the symmetrical center line as the axis, and the stirring shaft is used for driving the stirring blades to swing and rotate for stirring.
To this technical scheme, oil water separating oil skimming device is main technical improvement point, adopts the agitating unit who makes stirring vane oscillating rotary motion, and stirring vane carries out multi-angle change's swing when rotatory stirring, forms multi-angle change's stirring tangential force, and its beneficial effect is as follows:
1. make the oil in the greasy dirt aquatic and water mix more abundant to can easily and fully break up the impurity of caking in the greasy dirt aquatic, avoid impurity come-up sneak into waste oil, in order to do benefit to and improve the oil slick purity, and the waste oil that comes up when making the stirring accomplish after stewing forms obvious density difference with other material (oily sewage, wherein contain impurity), makes the water oil separating effect better, makes things convenient for follow-up oil skimming, improves oil skimming efficiency.
2. Stirring vane is the stirring of multi-angle slope, and stirring vane's each position all has sufficient horizontal tangential force, makes stirring vane's each position all have enough strong stirring efficiency, makes oil drip high efficiency collision knot become the quick come-up of big oil drip.
3. The stirring range can be enlarged, the stirring skimming tank is suitable for the stirring volume of the stirring skimming tanks with different sizes, the applicability is improved, and the intermittent driving stirring and skimming tank is adopted, so that the structure is simplified, and the equipment cost is saved.
When oily sewage oil slick got rid of system and drops into the application, stirring oil skimming case forms through the oily water entry on first pipeline and the takeover case and is connected, make the outside oily water high efficiency of ocean cloud storehouse go into storehouse to stirring oil skimming case, drive mechanism drives agitating unit earlier and carries out abundant stirring to the oily water in the stirring oil skimming case, make the high-efficient big oil droplet come-up that bonds of waste oil, after the stirring period, agitating unit stops the stirring, and the oily water period of stewing, the waste oil is abundant come-up, drive mechanism drives oil skimming device, the waste oil that floats in the surface is left aside, waste oil can go out the storehouse through the third pipeline and transports away, also can pass through the oil storage pipeline and temporarily save in the waste oil tank. The separated oily sewage can be temporarily stored in an oily sewage storage tank in the ocean cloud storehouse, and can also be taken out of the storehouse through a second pipeline to be transported away.
In this embodiment, the stirring blades are made of a material which is hydrophilic, oleophobic and well-wetting, such as an aluminum plate. When the oil-water separator is used, a large amount of oil drops are attached to the blades when an oil-water mixture flows through the blades, the contact area among the oil drops is greatly increased, the oil drops collide with each other, and the particle size of the oil drops after coalescence is increased. After the particle size is increased to a certain size, under the action of multi-angle swinging, rotating and stirring, the generated drag force (inertia force) can separate coalesced oil drops from the surface of the stirring blade, and the separated large oil drops have larger buoyancy and float more easily, so that efficient oil-water separation is realized.
In order to temporarily store the skimmed waste oil, facilitate centralized transportation and save transportation cost, the stirring skimmed oil tank 22 is connected with a waste oil tank 16 through an oil storage pipeline 65, and a vacuum oil guiding pump 18, a vacuum oil guiding tank 19 and an oil skimming electromagnetic valve 20 are arranged on the oil storage pipeline; the oil skimming solenoid valve 20 is used for enabling the oil skimming device to start oil skimming, and the vacuum oil guiding pump 18 is used for vacuumizing the vacuum oil guiding tank 19 so as to enable the skimming waste oil to flow into the waste oil tank 16.
In order to further improve the automation degree, a first liquid level meter 10 and an alarm liquid level switch 11 are arranged on the waste oil tank 16, the first liquid level meter 10 is used for monitoring the capacity in the waste oil tank 16 in real time, feeding the capacity data back to a control terminal of an ocean cloud cabin and displaying the capacity data in a storage tank through a display screen of the control terminal, and the alarm liquid level switch 11 is used for monitoring the limit capacity of the waste oil tank 16 and giving an alarm. The first liquid level meter 10 and the alarm liquid level switch 11 are connected with a control terminal signal
In order to monitor the liquid level of the oily water in the stirring skimming tank 22 in time and facilitate timely response of stirring and separation, a first liquid level switch 21 is arranged on the stirring skimming tank 22, the first liquid level switch 21 is used for detecting a preset liquid level in the stirring skimming tank 22, the preset liquid level is reached, the oil-water separation skimming device is started, after oil-water separation is completed, the oil skimming electromagnetic valve 20, the vacuum oil guiding tank 19 and the vacuum oil guiding pump 18 start skimming, and the skimmed waste oil flows into the waste oil tank 16 to be stored, and the vacuum oil guiding pump is used for enabling vacuum in the vacuum oil guiding tank.
Be equipped with first solenoid valve 7 and second solenoid valve 8 on the third pipeline, the third pipeline with set up fourth pipeline 64 between the waste oil tank 16, the one end setting of fourth pipeline is in between first solenoid valve 7 and the second solenoid valve 8 and with the second pipeline intercommunication, the other end of fourth pipeline with the inner chamber intercommunication of waste oil tank 16, set up oil concentration detector 9, third solenoid valve 12 and play waste oil pump 14 on the fourth pipeline, the cooperation of first solenoid valve 7 and second solenoid valve 8 is used and is made the waste oil of separating out go out the storehouse through the third pipeline or pass through the fourth pipeline go out the storehouse with first solenoid valve 7 goes out the storehouse.
When delivering from the warehouse through the third pipeline, the first electromagnetic valve and the second electromagnetic valve are both opened.
When the waste oil is discharged from the bin through the fourth pipeline and the first electromagnetic valve, the second electromagnetic valve is closed, a section of third pipeline between the second electromagnetic valve and the stirring skimming tank is closed, the waste oil at the inner end of the stirring skimming tank is discharged into a waste oil tank, and then the waste oil is communicated through the fourth pipeline, the first electromagnetic valve and a road section of the third pipeline between the first electromagnetic valve and the connecting pipe box and is discharged from the bin through a waste oil outlet of the connecting pipe box.
And the first pipeline is provided with a first pump 3, a first pressure gauge 4 and a first flowmeter 5.
The first pump 3 is used for storing the oily water into the stirring skimming tank 22, and the first pressure gauge 4 is used for monitoring the pressure change in the first pipeline in real time and judging the abnormal condition of the oily water in the storage;
the first flowmeter 5 is used for monitoring the flow data of the oily water in the first pipeline in real time, synchronizing the data to a control terminal of the ocean cloud bin and displaying the real-time flow data on a display screen of the control terminal.
The axis of the vertical state of the stirring shaft is taken as a symmetrical center line, the stirring shaft swings by taking the symmetrical center line as the axis, and the swing angle alpha is as follows: alpha is more than or equal to minus 45 degrees and less than or equal to 45 degrees. Through injecing the wobbling range of (mixing) shaft, make stirring vane's surface effectively participate in the stirring to improve stirring effect. The upper end of (mixing) shaft sets up changes ball 326, changes ball 326 and (mixing) shaft structure as an organic whole, changes ball 326 and sets up in the spherical inner chamber of furred ceiling piece 31, changes ball 326 and is restricted by furred ceiling piece 31, does not drop from spherical inner chamber to can rotate in spherical inner chamber.
The (mixing) shaft still is greater than or equal to alpha and is less than or equal to 45 (use vertical line as the swing central line, the upper end of (mixing) shaft is the swing fulcrum) the angular range swing when rotatory, forms the motion mode of multi-angle in space, makes stirring vane have more suitable horizontal tangential force to avoid horizontal tangential force from up attenuating down in vertical direction, make every position of stirring vane can both high-efficiently stir, make waste oil drip more efficient coalescence.
A second pump 23 and a second flowmeter 6 are arranged on the second pipeline; the second pump 23 is used for discharging the separated oily wastewater which sinks at the lower part of the stirring and skimming tank 22 through the oily wastewater outlet, and the second flowmeter 6 monitors the flow data of the oily wastewater in the second pipeline in real time, synchronizes the data to the control terminal of the ocean cloud bin, and simultaneously displays the real-time flow data on the display screen of the control terminal.
The oil skimmer on the oil skimming device is matched with the driving mechanism, the driving mechanism is used for driving the oil skimmer to ascend or descend, when the stirring blades stir, the driving mechanism enables the oil skimmer to ascend and leave oily water, and when stirring is completed and waste oil floats on the surface of the oily water, the driving mechanism enables the oil skimmer to descend for oil skimming.
The driving mechanism comprises a power mechanism, a rotary swing mechanism and a lifting mechanism, the rotary swing mechanism and the lifting mechanism are driven by the power mechanism, the power mechanism drives the rotary swing mechanism and the lifting mechanism to intermittently act, the rotary swing mechanism is used for enabling the stirring shaft to swing while rotating, and the lifting mechanism is used for enabling the oil skimmer to ascend or descend.
The power mechanism drives the rotary swing mechanism to act, the rotary swing mechanism acts to enable the stirring device to enter stirring work, when the stirring device performs stirring work, the lifting mechanism stops moving, the oil skimmer is located at a proper position above the oily water, the oil skimmer is not contacted with the oily water and is not skimmed, and meanwhile the action of the stirring shaft and the stirring blades is prevented from being interfered; after the stirring work is finished, the power mechanism stops working, the rotary swing mechanism and the lifting mechanism both stop working, oil and sewage are kept still for a period of time, oil and water are fully separated, the power mechanism drives the lifting mechanism to act, and the lifting mechanism enables the oil skimmer to descend for oil skimming.
Corresponding to the technical scheme, the method is embodied as an improvement point: adopt a actuating mechanism intermittent type formula to accomplish stirring work and oil skimming work, avoid adopting two sets of actuating mechanisms to accomplish stirring work and oil skimming work respectively, existing the cost of setting up, the assembly cost who is favorable to reducing actuating mechanism, also be favorable to reducing the fault rate, improve the effective work efficiency of oily water floating oil remove device in ocean cloud storehouse, reduce the probability of shutdown maintenance.
The rotary swing mechanism comprises a first gear 315 driven by the power mechanism, a speed change mechanism driven by the first gear 315, a rotary mechanism and a swing mechanism driven by an output shaft 325 of the speed change mechanism.
The rotating mechanism comprises a first swing link mechanism matched with an output shaft 325 of the speed change mechanism, a turbine 34 matched with an output end of the first swing link mechanism, and a worm sleeve 33 matched with the turbine 34, wherein the worm sleeve 33 is sleeved on the stirring shaft 312 to enable the stirring shaft 312 to rotate.
The swing mechanism comprises a second swing link mechanism matched with an output shaft 325 of the speed change mechanism, and a swing piece driven by an output rod on the second swing link mechanism, wherein the swing piece is matched with the stirring shaft 312 and used for enabling the stirring shaft 312 to swing.
The speed change mechanism includes a second speed change gear 324 provided on the rotation shaft 314 of the first gear 315, a first speed change gear 39 meshed with the second speed change gear 324, and the first speed change gear 39 is provided with the output shaft 325.
Because the stirring blade is soaked in the oil sewage, when the swing amplitude of the stirring blade is larger, the consumed kinetic energy is also larger, a high-power motor needs to be configured, and the stirring blade is easy to damage. Therefore, the swing amplitude and the speed of the stirring blades are relatively reduced through the speed change mechanism, when the swing amplitude and the speed of the stirring blades are reduced, the energy consumption can be reduced, the power of a motor is reduced, the large oil drops can be quickly gathered under the multi-angle tangential force action of the stirring blades, the oil-water separation efficiency is improved, the protection of the stirring blades is facilitated, and the service life of the stirring blades is prolonged.
The first swing link mechanism includes a third swing arm 38 and a first swing arm 35 pivotally connected to an output end of the third swing arm 38, an input end of the third swing arm 38 is matched with the output shaft 325, and an output end of the first swing arm 35 is matched with the turbine 34 to drive the turbine 34.
The second swing link mechanism comprises a connecting rod 37 and a second swing arm 36 pivoted to an output end of the connecting rod 37, an input end of the connecting rod 37 is matched with the output shaft 325, and an output end of the second swing arm 36 is pivoted to a rotating shaft of the turbine 34. The output end of the second swing arm 36 is pivotally connected to the rotating shaft of the turbine 34, and is used for limiting the movement of the output end of the second swing arm 36, so that the second swing arm 36 smoothly pushes the fixing block 32 disposed on the stirring shaft 312, and the stirring shaft 312 swings.
The lifting device comprises a second gear 318 driven by the power mechanism, a line wheel 317 driven by the second gear 318, and a transition wheel 311 matched with a lifting adjusting line on the line wheel 317 in a regulating manner, the oil skimmer is fixed on the lifting adjusting line, the second gear 318 rotates to enable the line wheel 317 to wind the lifting adjusting line to enable the oil skimmer to ascend or emit the lifting adjusting line to enable the oil skimmer to descend, and the transition wheel 311 is arranged between the line wheel 317 and the oil skimmer and used for regulating the direction of the lifting adjusting line.
The transition wheel is arranged between the wire wheel and the oil skimmer and used for adjusting the direction of the lifting adjusting wire. Namely, the transition wheel is used for changing the vertical direction of the lifting adjusting line for collecting and releasing the oil skimmer into the horizontal direction, so that the lifting adjusting line can be collected and released conveniently by the line wheel. In the present embodiment, the pulley 317 is disposed on the second rotating shaft 316 corresponding to the second gear 318.
The power mechanism comprises an electric rail 322, a motor base 323 arranged on the electric rail 322 and driven by the electric rail 322 to move, a driving motor 321 arranged on the motor base 323, and a third gear 319 arranged on an output shaft of the driving motor 321, wherein the electric rail 322 drives the driving motor 321 to move, so that the driving motor 321 drives the first gear 315 or the second gear 318 to rotate respectively, and the rotary swing mechanism and the lifting mechanism intermittently act.
The oil skimming device comprises an oil skimmer 40, the oil skimmer 40 is matched with the driving mechanism, the driving mechanism is used for driving the oil skimmer to ascend or descend, when the stirring device stirs, the driving mechanism enables the oil skimmer to ascend and leave oily sewage, and when the stirring device finishes stirring and waste oil floats on the surface of the oily sewage, the driving mechanism enables the oil skimmer to descend for oil skimming.
Compared with the prior art, the technical scheme not only changes the stirring mode of the stirring device, adopts the multi-angle swing type rotary stirring mode, but also changes the driving mechanism for driving the stirring device and the oil skimming device, adopts a group of driving mechanism to intermittently drive the stirring device and the oil skimming device to intermittently work, and greatly improves the utilization rate of the driving mechanism.
The adoption of a group of driving mechanisms not only simplifies the structure relatively and is beneficial to reducing the production and assembly cost, but also is beneficial to reducing the occupied space, and is beneficial to improving the working efficiency of the driving mechanisms, so that the driving mechanisms can be freely switched to be used for driving a stirring device or an oil skimming device.
In order to facilitate and efficiently skimming oil, a plurality of oil skimming ports 41 are arranged at the upper end of the oil skimmer 40, a floating oil thickness measuring instrument 43 is arranged on the oil skimmer 40, a triangular support 46 is arranged below the oil skimmer 40, and a floating ball 44 is arranged on each support leg on the triangular support 46.
The skimmer 40 is connected to one end of a hose 48 by a pipe mount 47. The other end of the hose 48 is connected to the vacuum oil pump 18 through a flange mounting member 49.
The setting of oil skimming mouth makes things convenient for waste oil to flow into oil skimming ware to the angle that struts through the A-frame makes oil skimming mouth's height-adjustable festival, can adjust oil skimming mouth's position, convenient accurate oil skimming according to the thickness of oil slick.
In general, in order to accurately measure the thickness of the floating oil, a mounting seat 42 is provided at the upper end of the triangular bracket 46, and a floating oil thickness measuring instrument 43 is provided on the mounting seat 42.
The bottom of the oil skimmer 40 is provided with a screw 52 which is in threaded connection with the triangular support 46 and is used for arranging the oil skimmer 40 on the triangular support 46 and adjusting the distance between the oil skimmer 40 and the triangular support 46.
Each stabilizer blade 45 that makes the A-frame 46 opens through the buoyancy of floater self combination skimmer's dead weight, is triangular distribution, detects the thickness of oil slick and comes adjusting screw 52 according to the oil slick thickness measurement appearance 43 that sets up on A-frame 46 (generally set up at the top of A-frame), adjusts the distance between oil skimmer bottom to the A-frame top, makes the position adaptation oil slick thickness of oil skimming mouth, makes oil skimming convenient more, high-efficient and effective.
Example 2: an oil-water separation method using the oil-containing sewage floating oil removal system described in example 1 is applied to oil-water separation and oil skimming treatment, and the method includes the steps of:
s1, warehousing oily water: and discharging the oily water outside the bin body into the stirring oil skimming tank 22 through the oily water inlet.
S2, stirring the oily water to separate the oil from the water: the stirring shaft is driven to move, and the stirring shaft 312 drives the stirring blades 313 to stir the oily water.
S3, oil skimming: standing for a period of time after stirring, starting the oil skimming device, and skimming waste oil floating on the surface.
S4, treating waste oil and oily sewage: and taking the skimmed waste oil and the skimmed oily sewage out of a bin and transferring. Alternatively, the skimmed waste oil and oily sewage are stored in the waste oil tank 16 and the oily sewage storage tank, respectively.
In step S1: scanning the two-dimensional code on the storehouse body, verifying user information, through verifying, then outside water pipe inserts oily water inlet and starts first pump 3, first manometer 4 and first flowmeter 5, begins oily water warehousing.
In step S2: whether the liquid level in the stirring skimming tank 22 reaches a preset value or not is detected through a second liquid level switch 21, and when the liquid level in the stirring skimming tank 22 reaches the preset value, a stirring device is started to stir.
In step S4: starting an oil skimming electromagnetic valve 20, a vacuum oil guiding tank 19 and a vacuum oil guiding pump 18, enabling waste oil skimmed by the oil skimming device 40 to flow into a waste oil tank 16 for temporary storage, waiting for starting the first electromagnetic valve 7, and delivering the waste oil out of the warehouse through a fourth pipeline, a third pipeline section between a pipe receiving box and the first electromagnetic valve 7; or directly opening the first electromagnetic valve 7 and the second electromagnetic valve 8 for discharging.
The oil-water separation and oil skimming treatment process comprises the following steps: the first liquid level meter 10 monitors the capacity of the waste oil tank 16 in real time, feeds the capacity back to a control terminal of the ocean cloud bin, and displays the capacity data in the waste oil tank 16 on a display screen of the control terminal; the alarm liquid level switch 11 monitors the limit capacity of the waste oil tank 16, gives an alarm when the limit capacity is reached, and simultaneously sends an alarm signal to a control terminal of the ocean cloud bin.
The number of teeth of the third gear 319 is Q 1 The number of teeth of the second gear 318 is Q 2 The rotational speed of the third gear 319 is r 1 ，
To obtain the rotation speed r of the second gear 2 Comprises the following steps:
the preset liquid level monitored by the second liquid level switch 21 is L1, the liquid level height of the oily sewage after oil skimming is set to be L2, and the oil skimming depth is
；
The oil suction flow of the oil skimmer is V, unit L/min, the area of an accommodating cavity in the oil skimmer is C, and the working time of the oil skimmer is
；
Measuring the elevation difference of the oil skimmer as L Difference (D) Then, the length of the required paying-off of the reel 317 is:
；
the diameter of the pulley 317 is known as D Paying-off wheel The period of the wire wheel 317 during working is as follows:
the time for which the driving motor 321 is turned on is obtained according to equation 1 and equation 2:
knowing the oil thickness measured by the oil slick thickness gauge 43, then d Floating oil ：
the threshold t represents a preset time threshold required for removing the floating oil thickness; and the t factor represents a pay-off time factor required by the oil skimming device in the working process, and the t skimming represents the working time required by the oil skimming device.
When the oil skimming device works normally, the oil skimming device works normally;
at that time, the oil skimmer is turned off, preventing the oil skimmer from sucking water next;
when in use
，
Normal starterA movable oil skimming device;
when in use
，
The oil skimming device was turned on for the following time.
Specifically, the method comprises the following steps:
1. the oily wastewater is put into a warehouse,
the oily water enters the stirring and oil skimming tank 22 through the oily water inlet and the first pipeline.
2. Starting a stirring mode:
the electric rail 322 is opened, the driving motor 321 is opened to slide forward, the first gear 315 is meshed with the third gear 319, the driving motor 321 is opened, the first gear 315 drives the second speed change gear 324 to rotate, the second speed change gear 324 drives the first speed change gear 39 to rotate, the first speed change gear 39 rotates to make the third swing arm 38 swing, the third swing arm 38 swings to make the first swing arm 35 swing, the first swing arm 35 drives the turbine 34 to rotate, the turbine 34 rotates to drive the worm sleeve 33 to rotate, and then the stirring blade 313 is controlled to rotate; the first swing arm 35 drives the second swing arm 36 to drive the stirring blade 313 to swing back and forth within the range of-45 degrees to 45 degrees through the fixing block 32.
3. When the second liquid level switch 21 detects that the liquid level reaches the preset liquid level, the oil skimming mode is started:
the electric rail 322 is started, the driving motor 321 slides backwards, the second gear 318 is meshed with the third gear 319, the driving motor 321 is started, the second gear 318 drives the wire wheel 317 to rotate, the oil skimmer 40 is put down through a cable, the oil skimmer 40 and the vacuum oil guiding pump 18 are started, waste oil flows in through an oil skimming port 41 on the oil skimmer 40 and flows into the vacuum oil guiding tank 19 through a hose 48 (one end of the hose 48 is connected to the vacuum oil guiding tank 19 through a flange mounting part, and the other end of the hose 48 is connected to the oil skimmer 40 through a pipeline mounting part 47), and the vacuum oil guiding tank 19 conveys the skimmed waste oil into the waste oil tank 16; after the oil skimming is finished, the oil skimmer 40 and the vacuum oil-guiding pump 18 are closed, the driving motor 321 is started to rotate reversely, and the oil skimmer 40 is lifted (the purpose is to prevent impurities from blocking a pipe orifice and being adsorbed on the oil skimmer due to the fact that the oil skimmer is soaked in waste oil for a long time and prevent the impurities from being solidified and adsorbed on the oil skimmer, and to prevent the position of the oil skimmer from being influenced due to the fluctuation of the water surface and prevent the oil skimmer from impacting the inner wall of a box body to cause damage and influencing the detection accuracy of a floating oil thickness measuring instrument on the oil skimmer 43 in a stirring mode).
4. After standing for a period of time (when the mixture is stirred and then stands for about 5 minutes, the oil-water separation efficiency basically reaches 96% -98%), starting an oil skimming mode, and simultaneously discharging waste oil into a waste oil tank for temporary storage:
and closing the first electromagnetic valve 7 and the second electromagnetic valve 8, opening the vacuum oil-leading pump 18 and the vacuum oil-leading tank 19, and flowing into a waste oil tank through an oil storage pipeline for temporary storage.
5. Discharging waste oil from a bin:
the first mode is as follows: when the oil skimming work is started, the first electromagnetic valve 7 and the second electromagnetic valve 8 are started, and the waste oil is discharged from the bin through the third pipeline.
The second mode is as follows: and opening the first electromagnetic valve 7 and a waste oil pump 14 arranged on the fourth pipeline to enable the fourth pipeline to be communicated with the outer section of the third pipeline (namely the pipe section between the first electromagnetic valve 7 and the connecting pipe box) for delivery.
The following experiments are carried out on the oil-water separation effect by utilizing the device related to the technical scheme for testing:
The above experiments were tested using a ZSD2 automatic water titrator, and the change in water content in the oil wastewater was measured over time and plotted as shown in fig. 7.
From the graph, it can be seen that:
compared with the experiment 1 of independent gravity settling, and the experiment 2 and the experiment 4 of vertical stirring, the experiment 3 and the experiment 5 simulating the technical scheme of the invention to carry out the experiment can more effectively separate oil from water, the time for separating the oil from the water to the same water content is shorter, the water content in the waste oil is lower, the settling time is longer, and the settling effect of the separated oily sewage is more obvious.
Under the same condition, the efficiency of completing oil-water separation by adopting the stirring mode related to the technical scheme of the invention is far higher than that of free precipitation and vertical stirring, when the standing time reaches about 3min, the oil-water separation efficiency of experiment 5 is far different from that of experiment 1, experiment 2 and experiment 4, the oil-water separation effect is better along with the extension of the standing time, and when the standing time reaches 5min, the oil-water separation efficiency of experiment 3 and experiment 5 basically reaches 96% -98%.
In the experimental process, adopt the oily water (or called raw water) that boats and ships produced and kerosene (waste oil) and running water (domestic sewage) the mixture compare, consider that the oily water ratio in the greasy dirt that boats and ships produced is impure, there is impurity, add the experiment of the mixture of kerosene (waste oil) and running water (domestic sewage), the oily water that the simulation boats and ships produced reduces the noise point of experimental data for the experimental data compares the effect more clearly, obvious.
In the experiment, the stirring mode disclosed by the technical scheme of the invention can form a tangential flow shear force field in the range of-45 to 45 degrees in an oil-water system, so that the deformation and collision frequency among liquids are accelerated, the coalescence of oil drops is promoted, and the oil-water separation rate is improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. In the above embodiments, the present invention may be variously modified and changed. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a oily sewage floating oil gets rid of system, includes the storehouse body, sets up the take-over box on the storehouse body, be equipped with oily sewage entry, oily waste water export and waste oil export on take-over box (2), its characterized in that the internal stirring skimming tank (22) that is equipped with in storehouse, stirring skimming tank (22) are connected with a waste oil tank (16) through the oil storage pipeline, set up first level gauge (10) on waste oil tank (16), oily sewage entry with through first pipeline intercommunication between stirring skimming tank (22), oily waste water export with through the second pipeline intercommunication between stirring skimming tank (22), waste oil export with through the third pipeline intercommunication between stirring skimming tank (22), set up oil-water separation skimming device in stirring skimming tank (22), first level gauge (10) real-time monitoring the capacity of waste oil tank (16) and feed back to the control terminal of ocean cloud storehouse, through control terminal starts oil-water separation skimming device.
2. The system for removing the floating oil in the oily sewage according to claim 1, wherein an alarm liquid level switch (11) is further arranged on the waste oil tank (16), and the alarm liquid level switch (11) is used for monitoring the limit capacity of the waste oil tank (16) and giving an alarm; the first liquid level switch (21) is used for detecting a preset liquid level in the stirring oil skimming tank (22), the oil-water separation oil skimming device is started when the preset liquid level is reached, and after oil-water separation is finished, the oil skimming electromagnetic valve (20), the vacuum oil guiding tank (19) and the vacuum oil guiding pump (18) start oil skimming and skimming waste oil flows into the waste oil tank (16) for storage.
3. The oil-containing sewage floating oil removing system according to claim 2, wherein a vacuum oil-leading pump (18), a vacuum oil-leading tank (19) and an oil-skimming solenoid valve (20) are arranged on the oil storage pipeline; the oil skimming solenoid valve (20) is used for enabling the oil skimming device to start oil skimming, and the vacuum oil guiding pump (18) is used for vacuumizing the vacuum oil guiding tank (19) and enabling the skimming waste oil to flow into the waste oil tank (16).
4. The oil-containing sewage floating oil removing system according to claim 1, 2 or 3, wherein the oil-water separating and oil skimming device comprises a stirring shaft (312) which is arranged in a suspending way, a stirring blade (313) which is arranged at the lower end of the stirring shaft, a driving mechanism which drives the stirring and simultaneously rotates and swings, and an oil skimming device which is used for skimming the waste oil floating on the surface after the oil-water separation; the stirring shaft rotates by taking the axis of the stirring shaft as a center line and swings by taking the upper end of the stirring shaft as a swing fulcrum, the axis of the stirring shaft in a vertical state is taken as a symmetrical center line, the stirring shaft swings by taking the symmetrical center line as the axis, and the stirring shaft is used for driving the stirring blades to swing and rotate for stirring.
5. The oily sewage floating oil removing system according to any one of claims 1 to 3, wherein a first electromagnetic valve (7) and a second electromagnetic valve (8) are arranged on the third pipeline, a fourth pipeline is arranged between the third pipeline and the waste oil tank (16), one end of the fourth pipeline is arranged between the first electromagnetic valve (7) and the second electromagnetic valve (8) and communicated with the second pipeline, the other end of the fourth pipeline is communicated with an inner cavity of the waste oil tank (16), an oil concentration detector (9), a third electromagnetic valve (12) and a waste oil discharging pump (14) are arranged on the fourth pipeline, and the first electromagnetic valve (7) and the second electromagnetic valve (8) are matched to enable the separated waste oil to be discharged out of a bin through the third pipeline or discharged out of a bin through the fourth pipeline and the first electromagnetic valve (7).
6. The system for removing floating oil in oily sewage according to any one of claims 1 to 3, wherein a first pump (3), a first pressure gauge (4) and a first flow meter (5) are arranged on the first pipeline; the first pump (3) is used for enabling the oily water to enter the bin to the stirring skimming tank (22), and the first pressure gauge (4) is used for monitoring the pressure change in the first pipeline in real time and judging whether the oily water enters the bin or not; the first flowmeter (5) is used for monitoring the flow data of the oily water in the first pipeline in real time.
7. The oil-contaminated water floating oil removing system according to any one of claims 1 to 3, wherein a second pump (23) and a second flow meter (6) are provided on said second piping; the second pump (23) is used for discharging the separated oily sewage which sinks at the lower part of the stirring and skimming tank (22) through the oily sewage outlet, and the second flowmeter (6) monitors the flow data of the oily sewage in the second pipeline in real time.
8. The system for removing the floating oil in the oily sewage according to claim 4, wherein the oil skimmer on the oil skimming device is matched with the driving mechanism, the driving mechanism is used for driving the oil skimmer to ascend or descend, the driving mechanism enables the oil skimmer to ascend away from the oily sewage when the stirring blades stir, and the driving mechanism enables the oil skimmer to descend to skim the oil when the stirring is completed and the waste oil floats on the surface of the oily sewage.
9. The system according to claim 8, wherein the driving mechanism comprises a power mechanism, a rotary swing mechanism and a lifting mechanism, the rotary swing mechanism and the lifting mechanism are driven by the power mechanism, the power mechanism drives the rotary swing mechanism and the lifting mechanism to intermittently move, the rotary swing mechanism is used for enabling the stirring shaft to swing while rotating, and the lifting mechanism is used for enabling the oil skimmer to ascend or descend.
10. The oily sewage floating oil removing system according to claim 9, wherein the upper end of the oil skimmer (40) is provided with a plurality of oil skimming ports (41), the oil skimmer (40) is provided with a floating oil thickness measuring instrument (43), a triangular bracket (46) is arranged below the oil skimmer (40), and each support leg on the triangular bracket (45) is provided with a floating ball (44); the bottom of the oil skimmer (40) is provided with a screw, the screw is in threaded connection with the triangular support (45), and the screw is used for enabling the oil skimmer (40) to be arranged on the triangular support (45) and adjusting the distance between the oil skimmer (40) and the triangular support (45).
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| CN202211256376.XA CN115321639A (en) | 2022-10-14 | 2022-10-14 | System for removing floating oil in oily sewage |
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| CN102092816A (en) * | 2011-01-12 | 2011-06-15 | 青海大地环境工程技术有限公司 | Oil slick recovery device |
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| CN214400014U (en) * | 2021-01-28 | 2021-10-15 | 长春一汽四环振兴标准件有限公司 | Oil-water separation device for heat treatment water tank |
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