CN115490309B - Magnetic control oil-water separation device - Google Patents
Magnetic control oil-water separation device Download PDFInfo
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- CN115490309B CN115490309B CN202110678897.3A CN202110678897A CN115490309B CN 115490309 B CN115490309 B CN 115490309B CN 202110678897 A CN202110678897 A CN 202110678897A CN 115490309 B CN115490309 B CN 115490309B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 238000000926 separation method Methods 0.000 title claims abstract description 26
- 239000006249 magnetic particle Substances 0.000 claims abstract description 59
- 239000000839 emulsion Substances 0.000 claims abstract description 48
- 239000002245 particle Substances 0.000 claims abstract description 21
- 239000007787 solid Substances 0.000 claims abstract description 10
- 239000012071 phase Substances 0.000 claims description 44
- 230000003321 amplification Effects 0.000 claims description 26
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 19
- 238000003825 pressing Methods 0.000 claims description 18
- 238000007599 discharging Methods 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 239000013283 Janus particle Substances 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 239000008346 aqueous phase Substances 0.000 claims description 5
- 239000003995 emulsifying agent Substances 0.000 claims description 5
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 239000011246 composite particle Substances 0.000 claims description 2
- 230000001804 emulsifying effect Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 51
- 239000002351 wastewater Substances 0.000 description 11
- 238000004080 punching Methods 0.000 description 7
- 238000000605 extraction Methods 0.000 description 5
- 210000002268 wool Anatomy 0.000 description 5
- 238000005191 phase separation Methods 0.000 description 4
- 230000002195 synergetic effect Effects 0.000 description 4
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- 238000004945 emulsification Methods 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
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- 229920000642 polymer Polymers 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- WBWJXRJARNTNBL-UHFFFAOYSA-N [Fe].[Cr].[Co] Chemical compound [Fe].[Cr].[Co] WBWJXRJARNTNBL-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910000828 alnico Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
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- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
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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
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
-
- 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
Abstract
The invention provides a magnetic control oil-water separation device, which enables magnetic particle emulsion drops to migrate and concentrate under the action of a magnetic field, so as to separate a disperse phase from a continuous phase, and further separate the disperse phase from magnetic solid particles by demulsification of the magnetic particle emulsion drops.
Description
Technical Field
The invention relates to the field of oil-water separation devices, in particular to a magnetic control oil-water separation device which can be used for oil-water separation of magnetic particle emulsion.
Background
The industry has great pollution to the environment due to the consumption of petroleum and derived products, and the human beings have multiple environmental problems. The problems of oil slick caused by marine oil leakage accidents, oil-containing sewage generated by oil extraction and drilling, oil sludge formed on the inner wall of an oil storage tank, oil sand of a drilling platform and the like are all major oil pollution to be solved urgently. At present, there is no method worldwide that can achieve effective treatment of chemical processes independent of them.
The oil and water are typically immiscible two phases and emulsification is typically accomplished using small molecule surfactants, block polymers, biopeptides, and the like, to form a stable emulsion. While the binding of oil can be achieved by such a process, enrichment and separation of oil cannot be achieved. The treatment of multiphase complex mixed system is always a difficult problem of industrial waste treatment, taking oil-containing sewage in petrochemical industry as an example, the discharged sewage contains floating oil and emulsified oil with different degrees, advanced treatment is needed before discharging, and the traditional mode is to realize demulsification and other processes by compounding a surfactant system. The surfactant is usually toxic and harmful, and causes secondary pollution to the environment. The solid particle emulsifier is a physical process for the emulsification process of the oily wastewater, can realize the three-phase separation of water, oil and particles, is nontoxic and environment-friendly, and can be recycled. Oil-water separation and other pollutant disposal based on magnetic particle emulsifiers are research hotspots, but devices matching with the technology thereof have not been reported.
Disclosure of Invention
Problems to be solved by the invention
The invention provides a device which can be used for magnetic control oil-water separation of magnetic particle emulsion, and the device enables magnetic particle emulsion drops to migrate and enrich under the action of a magnetic field so as to separate a continuous phase, and further separation of a dispersed phase and magnetic solid particles is realized through emulsion breaking of the magnetic particle emulsion drops. The device for oil-water separation of the magnetic particle emulsion provided by the invention can realize three-phase separation of oil, water and solids for the magnetic particle emulsion.
Solution for solving the problem
A first aspect of the present invention provides a magnetic control oil-water separation device, which includes:
the treatment bin is used for accommodating the liquid to be treated and performing oil-water separation;
a magnet disposed inside the treatment chamber;
a magnetic field amplifying member provided near the magnet;
and a pressing member adapted to the treatment chamber and adapted to apply pressure to the magnetic field amplifying member.
For the device, wherein the magnet is cylindrical, it is inserted longitudinally into the bottom of the treatment bin through a conduit.
Wherein the magnetic field amplifying component comprises steel fibers and/or iron fibers, and the magnetic field amplifying component is arranged around the magnet.
The device also comprises a rebound part for resetting the magnetic field amplifying part, and the rebound part is arranged at the bottom of the treatment bin.
Wherein the magnetic field amplifying component is attached to the rebound component.
Wherein the extrusion part is a hollow columnar lifting stamping pull rod.
Wherein, the side wall of the treatment bin is provided with a treated liquid inlet and two outlets.
Wherein a gasket is provided on the lower surface of the pressing member.
The second aspect of the invention provides a method for oil-water separation by using the device, comprising the following steps:
enabling the treated liquid to enter a treatment bin, wherein the treated liquid is magnetic particle emulsion;
under the action of a magnetic field, the magnetic particle emulsion drops serving as a disperse phase are adsorbed and enriched near the magnetic field amplification part;
discharging the aqueous phase as a continuous phase;
applying pressure to the magnetic field amplification part by using the extrusion part to realize demulsification of magnetic particle emulsion drops;
discharging the demulsified oil phase from the treatment bin;
stopping the magnetic field, flushing the magnetic particles adhered to the magnetic field amplification part, and discharging the magnetic particles out of the treatment bin.
For the above method, it further comprises resetting the pressing member and the magnetic field amplifying member with a rebound member.
ADVANTAGEOUS EFFECTS OF INVENTION
The oil-water separation device for the magnetic particle emulsion provided by the invention can realize three-phase separation of oil, water and solids in one device. The device of the invention can realize the high-efficiency removal of specific phases for the oily wastewater emulsified by the magnetic particles, and can realize the miniaturization and low cost of reaction equipment. The device of the invention can be used for treating industrial waste, oily wastewater and the like emulsified by magnetic particles.
Drawings
Fig. 1: schematic diagram of one embodiment of a device for magnetically controlled oil-water separation.
Fig. 2: drawing a drawing pull rod schematic diagram.
Fig. 3: a schematic drawing of the adaptation of the lifting and punching pull rod to the treatment house is shown, not shown in this figure are magnetic bars, magnetic field amplifying members, rebound members etc.
Fig. 4: a schematic of a treatment bin with one inlet and two outlets.
Description of the reference numerals
1. Lifting and pulling a stamping pull rod;
2. an outlet I;
3. a seal ring;
4. a conduit;
5. a treatment bin;
6. fixing angle iron;
7. a fixed plate;
8. a magnetic rod;
9. a magnetic field amplifying part;
10. an inlet;
11. an outlet II;
12. a resilient member.
Detailed Description
In the present specification, the use of the meaning of "can" or "can" includes both the meaning of performing a certain process and the meaning of not performing a certain process.
In the present specification, "magnetic particles" refer to solid particles that can respond to a magnetic field, and the kind of the magnetic particles is not particularly limited as long as they can function as a solid emulsifier. For example, the magnetic particles may be Fe 3 O 4 Particles, amphiphilic magnetic Janus particles, amphiphilic magnetic organic/inorganic composite particles and the like. The average particle size of the magnetic particles may be 10-2000nm.
In the present specification, the term "magnetic particle emulsion" refers to an emulsion obtained by emulsifying magnetic particles as a solid emulsifier, in which magnetic particles coat oil droplets to form a dispersed phase, and the dispersed phase is dispersed in an aqueous phase as a continuous phase.
The magnetic particle emulsion as the liquid to be treated in the present invention is usually an emulsion obtained by dispersing magnetic particles in a target treatment liquid and applying a predetermined shearing force. The target treatment fluid may be oily wastewater generated during crude oil extraction and post-treatment processes, such as oil extraction wastewater, particularly enhanced oil extraction wastewater, oil tank cleaning wastewater, particularly oil extraction tank cleaning wastewater, drilling platform cleaning wastewater, oily wastewater discharged by food oil enterprises, oily wastewater discharged by chemical plants, and the like. The amount of the magnetic particles to be used in the target treatment liquid may be determined and adjusted depending on the degree of contamination of the target treatment liquid and the oil content, and may be, for example, 0.01 to 20wt%.
It is an object of the present invention to provide an oil-water separator for magnetic particle emulsions.
The treatment chamber in the device is used for containing the liquid to be treated, such as magnetic particle emulsion, and is a place for oil-water separation of the liquid to be treated. The shape and material of the treatment chamber are not particularly limited as long as the above functions and actions can be achieved, and for example, the shape of the treatment chamber may be a right cylinder, an elliptic cylinder, a square, a rectangular parallelepiped, a trapezoid, or the like. In one embodiment of the invention, the treatment bin is barrel-shaped with a rectangular or circular bottom surface. In one embodiment, the treatment compartment is arranged above a fixed disk as a base, and the firm connection of the treatment compartment wall with the fixed disk is achieved by means of a fixing element, for example angle iron, in which case the fixed disk constitutes the bottom of the treatment compartment.
The treatment bin is provided with an inlet and an outlet, wherein the inlet is used for introducing magnetic particle emulsion and/or water flow. The outlet is used to discharge the separated continuous phase, dispersed phase, solid particles, etc. In one embodiment, the inlet is disposed in a bottom sidewall of the process chamber, e.g., the inlet is disposed in a lower portion of the process chamber sidewall; the outlet is disposed in a sidewall, e.g., an upper and/or lower portion of the sidewall, of the process chamber opposite the inlet. The number of the inlet and the outlet may be set as required, for example, 1 or 2 inlets, 1 or 2 or 3 outlets may be provided, and both the inlet and the outlet may be provided as three-way valves. In one embodiment, the treatment chamber is provided with 2 outlets, one of which is used for discharging the separated continuous phase and the other for discharging the demulsified dispersed phase. In one embodiment, the second outlet is a three-way valve comprising two ports. In one embodiment, the outlets may also be used as inlets, for example, one outlet may be used as an inlet for high pressure water and the rinsed magnetic particles may be discharged from the other outlet.
The magnet used in the present invention is not particularly limited, and may be any conventional magnet in the art, for example, samarium cobalt magnet, neodymium iron boron magnet, ferrite magnet, alnico magnet, iron chromium cobalt magnet, or the like. The magnets are configured to generate a magnetic field within the treatment chamber having a magnetic induction in the range of 500-25000 gauss (Gs). The shape of the magnet is not particularly limited as long as it can be adapted to the treatment chamber, and may be, for example, a block shape, a columnar shape, or the like. In one embodiment the magnet is a magnetic rod. The number of magnets in the present invention may be one or more.
In one embodiment, the treatment chamber is provided with a guide tube, and the columnar magnet is inserted into the guide tube, and can be inserted into or fixed at the bottom center position of the treatment chamber through one end of the guide tube. The number of conduits may be one or more, the number of magnets remaining the same as the number of conduits. The height of the magnet is not particularly limited and may be lower, equal to or higher than the height of the treatment bin.
The purpose of the magnetic field amplifying part is to enhance the effect of the magnetic field, by means of which a larger coverage of the magnetic field in the treatment compartment is achieved, and in addition the magnetic field amplifying part can also act as a barrier to the flow of liquid inside the device. The magnetic field amplifying member preferably comprises, and more preferably consists of, steel fibers and/or iron fibers, which may have a diameter of 0.1-2mm. For example, the magnetic field amplifying member may be composed of a substance selected from steel wool, steel wire, iron wire, steel dust, iron filings, and the like. The shape of the magnetic field amplifying member is not particularly required as long as the above-described functions can be achieved. In one embodiment of the present invention, the magnetic field amplifying member is formed of a steel wire having a diameter of 0.5mm in a wound state.
The magnetic field amplifying members may be provided around the magnet, and for example, 2 to 8 magnetic field amplifying members may be provided around the magnet.
The pressing member is configured to exert a force on the magnetic field amplifying member, thereby enabling demulsification of magnetic particle emulsion droplets enriched on or near the magnetic field amplifying member. There is no particular requirement on the shape of the pressing member, so long as the above-mentioned functions can be achieved, for example, the bottom surface of the pressing member is parallel to the bottom of the treatment chamber, the shape is adapted to the treatment chamber, and the bottom of the pressing member has a hole adapted to the shape of the guide pipe, so that the pressing member can move up and down along the guide pipe. In a specific scheme, the extrusion part is a hollow columnar lifting and stamping pull rod or a stamping box. The drive of the pressing member may be an electric drive or a manual drive. The hollow columnar lifting stamping pull rod can realize continuous repeated stamping of the magnetic field amplification part. The sealing gasket can be arranged on the lower surface of the extrusion part (namely, the surface which can be contacted with the magnetic field amplification part), plays a role in increasing elasticity and sealing property, and can be well sealed with the pipe wall due to elasticity, so that gaps are reduced, and meanwhile, the damage possibly caused by hard contact between the extrusion part and the device is reduced. The gasket may be made of a conventional resilient material, for example, a rubber or silicone pad.
The apparatus of the present invention may include a rebound member for effecting a reset of the magnetic field amplifying member, which may be disposed at the bottom of the treatment chamber. When a force is applied to the magnetic field amplifying member by the pressing member, the member is deformed. In order to enable the magnetic field amplifying member to be quickly restored to the original state, the magnetic field amplifying member may be provided in such a manner as to be attached to the rebound member, for example, the magnetic field amplifying member is attached to or wound around the rebound member. In this case, the number of rebound members is equal to the number of magnetic field amplifying members. The magnetic field amplifying member deformed by being pressed can be returned to its original position relatively quickly by the repulsive force generated by the resilient member. The resilient member may be selected from devices having a resilient force, such as springs.
The resilient member may also be configured to be attached to the bottom of the treatment chamber at one end and to the bottom of the squeezing member at the other end, in which case the resetting of the magnetic field amplifying member and the squeezing member may be accomplished simultaneously after the application of pressure to the magnetic field amplifying member.
The following further describes a specific scheme of the magnetic control oil-water separation device according to the invention with reference to the attached drawings.
As shown in fig. 1, the device for magnetically controlling oil-water separation comprises: a hollow columnar lifting and punching pull rod 1, a treatment bin 5, a magnetic rod 8, a magnetic field amplification part 9 and a rebound part 12; the treatment bin 5 is fixed on the fixed disc 7 through the fixed angle iron 6, the magnetic rod 8 passes through the guide pipe 4 and is inserted into the fixed disc 7 through the guide pipe 4, the magnetic field amplifying part 9 is attached to or wound on the rebound part 12, and two ends of the rebound part 12 are respectively connected with the fixed disc 7 and the bottom of the hollow columnar lifting and stamping pull rod 1; wherein the treatment chamber 5 is provided with an inlet 10 and an outlet 2, an outlet 11, wherein the inlet 10 and the outlet 11 are not shown in the left diagram of fig. 1, and the positions of the inlet 10, the outlet 2 and the outlet 11 are shown in fig. 4; a sealing gasket 3 is arranged on the lower surface of the hollow columnar lifting and stamping pull rod 1. The magnetic rod 8 achieves a larger coverage of the magnetic field by the magnetic field amplifying member 9.
Oil-water separation method
Another object of the present invention is to provide a method for oil-water separation of a liquid to be treated, such as a magnetic particle emulsion, using the oil-water separation apparatus of the present invention, the method comprising:
enabling the magnetic particle emulsion to enter a treatment bin; under the action of a magnetic field, the magnetic particle emulsion drops serving as a disperse phase are adsorbed and enriched near the magnetic field amplification part; discharging the aqueous phase as a continuous phase; applying pressure to the magnetic field amplification part by using the extrusion part to realize demulsification of magnetic particle emulsion drops; discharging the demulsified oil phase from the treatment bin; stopping the magnetic field, flushing the magnetic particles adhered to the magnetic field amplification part, and discharging the magnetic particles out of the treatment bin. In the case that the oil-water separation device includes a rebound member, the method may further include a step of resetting the magnetic field amplifying member and the pressing member by using the rebound member. For convenience of further treatment, the separated aqueous phase and the oil phase may exit the treatment bin through different outlets.
By the method, not only can the oil-water separation be realized, but also the three-phase separation of the water phase, the oil phase and the solid phase in the magnetic particle emulsion can be realized.
One embodiment of the oil-water separation method of the present invention is further described below with reference to the accompanying drawings.
The oil-water mixed emulsion emulsified by the magnetic particles enters the device through the inlet 10, and after a period of time of magnetic field action, the adsorption and enrichment of the emulsion drops of the dispersed phase of the magnetic particles on the magnetic field amplifying part 9 are realized. Opening outlet one 2 and allowing the continuous phase to exit through outlet one 2. Opening the second outlet 11, continuously and repeatedly stamping the magnetic field amplifying part 9 by using the hollow columnar lifting stamping pull rod 1, and demulsifying the emulsion drops of the dispersed phase of the magnetic particles, and discharging the demulsifying dispersed phase from the second outlet 11. After the dispersed phase is completely discharged, high-pressure water is introduced from the first outlet 2, and the magnetic particles adhered to the magnetic field amplifying member 9 are washed, so that the magnetic particles are discharged from the second outlet 11. The hollow columnar lifting and punching pull rod 1 and the magnetic field amplifying part 9 are reset by utilizing the self rebound resilience of the rebound part 12.
Example 1
100g of magnetic iron-in-silicon particles (SiO 2 @Fe 3 O 4 ) Dispersing into 10L of water, pouring 10L of liquid with the oil content of 3000ppm,the emulsion stabilized by the magnetic Janus particles was obtained by rapid stirring at 150rpm/min for 1min using a stirrer. The emulsion is pumped into a treatment bin through an inlet by a metering pump, magnetic oil drops emulsified by magnetic Janus particles are adsorbed on an amplification part due to the action of an external magnetic field under the synergistic action of a magnetic rod and the amplification part, and meanwhile, a water continuous phase flows out from an outlet through the treatment bin. When the emulsion is cut off, one branch port of the three-way valve at the second outlet is opened, the residual water continuous phase flows out, and after the residual water continuous phase flows out completely, the branch port of the three-way valve is closed. Meanwhile, the other three-way valve branch port is opened, the amplifying device is punched by the punching device, oil drops are demulsified, and oil flows out from the three-way valve branch port. And the magnetic rod is removed, particles can be separated from the amplification device (steel wool) through high-pressure water washing, and the particles flow out along with water, so that the particles can be recycled. The oil content of the discharged continuous phase was reduced to 8ppm by infrared oil meter testing.
Example 2
100g magnetic Janus particles (PEO@Fe) 3 O 4 @ PS) was dispersed in 10L of water, 10L of a liquid having an oil content of 4000ppm was poured, and the mixture was rapidly stirred with a stirrer at 100rpm/min for 1min to give an emulsion stabilized by magnetic Janus particles. The emulsion is pumped into a treatment bin through an inlet by a metering pump, magnetic oil drops emulsified by magnetic Janus particles are adsorbed on an amplification part due to the action of an external magnetic field under the synergistic action of a magnetic rod and the amplification part, and meanwhile, a water continuous phase flows out from an outlet through the treatment bin. When the emulsion is cut off, one branch port of the three-way valve at the second outlet is opened, the residual water continuous phase flows out, and after the residual water continuous phase flows out completely, the branch port of the three-way valve is closed. Meanwhile, the other three-way valve branch port is opened, the amplifying device is punched by the punching device, oil drops are demulsified, and oil flows out from the three-way valve branch port. And the magnetic rod is removed, particles can be separated from the amplification device (steel wool) through high-pressure water washing, and the particles flow out along with water, so that the particles can be recycled. The oil content of the discharged continuous phase was reduced to 8ppm by infrared oil meter testing.
Example 3
100g of polymer magnetic Janus particles (PS@Fe) 3 O 4 ) Dispersing into 10L water, pouring 10L of liquid with oil content of 3000ppm, stirringThe mixture was stirred rapidly at 150rpm/min for 1min to give an emulsion stabilized by magnetic Janus particles. The emulsion is pumped into a treatment bin through an inlet by a metering pump, magnetic oil drops emulsified by magnetic Janus particles are adsorbed on an amplification part due to the action of an external magnetic field under the synergistic action of a magnetic rod and the amplification part, and meanwhile, a water continuous phase flows out from an outlet through the treatment bin. When the emulsion is cut off, one branch port of the three-way valve at the second outlet is opened, the residual water continuous phase flows out, and after the residual water continuous phase flows out completely, the branch port of the three-way valve is closed. Meanwhile, the other three-way valve branch port is opened, the amplifying device is punched by the punching device, oil drops are demulsified, and oil flows out from the three-way valve branch port. And the magnetic rod is removed, particles can be separated from the amplification device (steel wool) through high-pressure water washing, and the particles flow out along with water, so that the particles can be recycled. The oil content of the discharged continuous phase was reduced to 6ppm by infrared oil meter testing.
Example 4
100g of magnetic particles (Fe 3 O 4 ) Dispersing into 10L of water, pouring 10L of liquid with the oil content of 3000ppm, and rapidly stirring for 1min at the speed of 150rpm/min by using a stirrer to obtain emulsion stabilized by magnetic particles. The emulsion is pumped into a treatment bin through an inlet by a metering pump, magnetic oil drops emulsified by magnetic particles are adsorbed on an amplification part due to the action of an external magnetic field under the synergistic action of a magnetic rod and the amplification part, and meanwhile, a water continuous phase flows out from an outlet through the treatment bin. When the emulsion is cut off, one branch port of the three-way valve at the second outlet is opened, the residual water continuous phase flows out, and after the residual water continuous phase flows out completely, the branch port of the three-way valve is closed. Meanwhile, the other three-way valve branch port is opened, the amplifying device is punched by the punching device, oil drops are demulsified, and oil flows out from the three-way valve branch port. And the magnetic rod is removed, particles can be separated from the amplification device (steel wool) through high-pressure water washing, and the particles flow out along with water, so that the particles can be recycled. The oil content of the discharged continuous phase was reduced to 9ppm by infrared oil meter testing.
Claims (10)
1. A magnetically controlled oil-water separator, comprising:
a treatment bin for accommodating the liquid to be treated and separating oil from water, wherein the treatment bin is provided with a conduit,
the treated liquid is magnetic particle emulsion,
the magnetic particle emulsion is emulsion obtained by emulsifying magnetic particles as a solid emulsifier,
the magnetic particles are selected from amphiphilic magnetic particles;
a magnet disposed inside the treatment chamber;
a magnetic field amplifying member provided near the magnet;
a pressing member adapted to the treatment cartridge and for applying pressure to the magnetic field amplifying member, the pressing member being configured to be movable up and down along the guide tube;
the device also comprises a rebound part for realizing the reset of the magnetic field amplification part, the rebound part is arranged at the bottom of the treatment bin, and the magnetic field amplification part is attached to the rebound part.
2. The device of claim 1, wherein the magnetic particles are selected from the group consisting of Fe 3 O 4 Particles, amphiphilic magnetic organic/inorganic composite particles.
3. The device of claim 1, wherein the magnetic particles are selected from amphiphilic magnetic Janus particles.
4. The device of claim 1, wherein the magnet is cylindrical in shape and is inserted longitudinally into the bottom of the treatment chamber by a conduit.
5. The device of any of claims 1-4, wherein the magnetic field amplifying member comprises steel fibers and/or iron fibers, the magnetic field amplifying member being disposed around the magnet.
6. The apparatus of any of claims 1-4, wherein the extrusion member is a hollow cylindrical lift ram.
7. The apparatus of any of claims 1-4, wherein the treatment chamber is provided with a treated fluid inlet and two outlets on a side wall.
8. The apparatus of any one of claims 1-4, wherein a gasket is provided on a lower surface of the pressing member.
9. A method of oil-water separation using the apparatus of any one of claims 1-8, comprising:
enabling the treated liquid to enter a treatment bin, wherein the treated liquid is magnetic particle emulsion;
under the action of a magnetic field, the magnetic particle emulsion drops serving as a disperse phase are adsorbed and enriched near the magnetic field amplification part;
discharging the aqueous phase as a continuous phase;
applying pressure to the magnetic field amplification part by using the extrusion part to realize demulsification of magnetic particle emulsion drops;
discharging the demulsified oil phase from the treatment bin;
stopping the magnetic field, flushing the magnetic particles adhered to the magnetic field amplification part, and discharging the magnetic particles out of the treatment bin.
10. The method of claim 9, further comprising resetting the squeeze member and the magnetic field amplifying member with a rebound member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110678897.3A CN115490309B (en) | 2021-06-18 | 2021-06-18 | Magnetic control oil-water separation device |
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| CN202110678897.3A CN115490309B (en) | 2021-06-18 | 2021-06-18 | Magnetic control oil-water separation device |
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| CN115490309A CN115490309A (en) | 2022-12-20 |
| CN115490309B true CN115490309B (en) | 2024-01-30 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5045189A (en) * | 1988-06-07 | 1991-09-03 | Smit Transformatoren B. V. | Magnetic separation apparatus |
| CN101698548A (en) * | 2009-10-28 | 2010-04-28 | 哈尔滨工程大学 | Combined treatment method for ship ballast water |
| CN102381800A (en) * | 2011-09-20 | 2012-03-21 | 哈尔滨工程大学 | Method for treatment of oily sewage at bottom of bilge of vessel and method for preparation of magnetic activated carbon for decontamination of oily sewage |
| CN106006878A (en) * | 2016-07-10 | 2016-10-12 | 李勇军 | Permanent-magnet high-gradient water filter |
| CN108296022A (en) * | 2018-03-26 | 2018-07-20 | 河北工业大学 | A kind of cutting fluid filtering separation device |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5045189A (en) * | 1988-06-07 | 1991-09-03 | Smit Transformatoren B. V. | Magnetic separation apparatus |
| CN101698548A (en) * | 2009-10-28 | 2010-04-28 | 哈尔滨工程大学 | Combined treatment method for ship ballast water |
| CN102381800A (en) * | 2011-09-20 | 2012-03-21 | 哈尔滨工程大学 | Method for treatment of oily sewage at bottom of bilge of vessel and method for preparation of magnetic activated carbon for decontamination of oily sewage |
| CN106006878A (en) * | 2016-07-10 | 2016-10-12 | 李勇军 | Permanent-magnet high-gradient water filter |
| CN108296022A (en) * | 2018-03-26 | 2018-07-20 | 河北工业大学 | A kind of cutting fluid filtering separation device |
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| CN115490309A (en) | 2022-12-20 |
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