CN2838719Y - The built-in water-oil separating degreasing unit of oil-polluted water regulating tank - Google Patents
The built-in water-oil separating degreasing unit of oil-polluted water regulating tank Download PDFInfo
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- CN2838719Y CN2838719Y CN 200520045692 CN200520045692U CN2838719Y CN 2838719 Y CN2838719 Y CN 2838719Y CN 200520045692 CN200520045692 CN 200520045692 CN 200520045692 U CN200520045692 U CN 200520045692U CN 2838719 Y CN2838719 Y CN 2838719Y
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Abstract
The utility model relates to the built-in water-oil separating degreasing unit of oil-polluted water regulating tank.Comprise in the permanent water level that is arranged in outer jar jar, with interior jar of affixed water-oil separating assembly; The water-oil separating assembly comprises cyclone separator, splash pan, and the oil guide pipe of splash pan bottom is connected with the oil exit pipe of oil-polluted water regulating tank.Establish on the tank skin in the permanent water level and overflow water pipe, its bottom is affixed with the outer jar end, and is isolated mutually between inside and outside jar, is provided with the connection pipe valve between inside and outside jar.The water-oil separating assembly comprises oil reservoir absorption cloth stream assembly; Cyclone separator comprises separating cyclone tube, rotational flow separation water inlet tube distributing pipe, eddy flow water outlet collection chamber; The top of eddy flow water outlet collection chamber sets out the water water distribution mouth, and heavy mud floss hole is established in the bottom; The rotational flow separation water inlet manifold is communicated with the water inlet of outer jar; The adjustable height of splash pan; Core intersection warning automatic oil draining system is established in water-oil separating assembly top.It can improve the removal ability to small particle diameter oil and small suspension, reduces the oil content of comprehensive water outlet.
Description
Technical field
The utility model is relevant with the water-oil separating waste-oil scavenger that petrochemical industry, port and pier etc. is located oil-polluted water, relates in particular to the built-in water-oil separating degreasing unit of a kind of oil-polluted water regulating tank.
Background technology
At present, because environmental protection requirement, the storage tank mode that trends towards adopting closure is more regulated in the collection of oil-polluted water, simultaneously the oil removing process of oil-polluted water has also been proposed the requirement of closure, deviceization, reduce the pollution of stench atmosphere with this.On the other hand, adopt the storage tank mode also can improve, also saved occupation of land coming the impact resistance of discharge.Especially the water ballast of fresh water (FW) of refinery's device (as stripping acid water) and port and pier etc. should not be handled with big, the inefficient mode of floor spaces such as oil interceptor again, needs a kind ofly can collect the device of efficiently handling in the regulating tank at oil-polluted water.
ZL 02264921.2 patent documentation discloses " a kind of waterpower spinning liquid separates oil slick and collects composite set automatically ", a kind of exactly oil conte, sewage treatment device that is arranged in the oil-polluted water collection regulating tank comprises the water-oil separating assembly that is arranged on jar in the interior permanent water level of oil-polluted water regulating tank tank body between two parties, is fixed in jar axis middle and upper part in the permanent water level by roof beam structure; Its purpose is: utilize action of centrifugal force, make oil slick collect discharge automatically, reach oil-water separation preferably, reduce the water outlet oil content.
Yet, application practice shows, owing to be somebody's turn to do water-out manners under being of collecting the composite set employing automatically, outlet part distance of positions liquid level is darker, the last buoyancy of small particle diameter oil is relatively poor simultaneously, therefore under the situation that come-up is removed as yet, just taken to outside the jar substantially, thereby water outlet oil-containing index can not be fallen by water outlet.Therefore, to contain oil index still higher in its water outlet.In addition, utilized the unsteady oil of receiving of keg float owing to should collect composite set automatically, the machining accuracy of its keg float and slide bar is difficult to reach designing requirement, thereby make the water content of receiving oil excessive, cause very big impact for follow-up sump oil collecting tank, and can't accomplish to receive automatically the effect of oil, still need rely on and manually control oil extraction.
Summary of the invention
The purpose of this utility model is to provide a kind of improved oil-polluted water regulating tank built-in water-oil separating degreasing unit, and it can improve the removal ability to small particle diameter oil and small suspension effectively, thereby reduces the oil content of comprehensive water outlet.Solve simultaneously in the prior art float bowl-type preferably and floated and receive oily water content and greatly, also need problems such as control manually, improved the utilization rate and the ease for operation of follow-up slop tank.When further reducing total water outlet oil content, to sewage, the sump oil separator enters subsequent treatment process that higher assurance is provided.
The purpose of this utility model is achieved in that
The built-in water-oil separating degreasing unit of oil-polluted water regulating tank, comprise in the permanent water level that is arranged between two parties in the oil-polluted water regulating tank jar, by roof beam structure be fixed in jar axis middle and upper part in the permanent water level the water-oil separating assembly, be installed in the splash pan on the water-oil separating assembly; Described water-oil separating assembly comprises cyclone separator; The oil guide pipe of described splash pan bottom is connected with the oil exit pipe of oil-polluted water regulating tank; Its substantive distinguishing features is:
The tank skin of jar is provided with and overflows water pipe in the described permanent water level; Its bottom is affixed with the jar end of oil-polluted water regulating tank, and is isolated mutually between interior jar and outer jar; Be provided with communicating pipe between jar and the oil-polluted water regulating tank in this perseverance water level, communicating pipe be provided with communicating valve;
This water-oil separating assembly also comprises the oil reservoir absorption cloth stream assembly that is arranged on the cyclone separator top;
Described cyclone separator comprises separating cyclone tube, rotational flow separation water inlet tube distributing pipe, eddy flow water outlet collection chamber;
The top of described eddy flow water outlet collection chamber circumferentially evenly is provided with the water outlet water distribution mouth at interval, and its underpart is provided with heavy mud floss hole; Described rotational flow separation water inlet manifold is connected with the water inlet of oil-polluted water jar;
Described splash pan is the adjustable height splash pan;
The top of described water-oil separating assembly also is provided with core intersection warning automatic oil draining system.
The built-in water-oil separating degreasing unit of above-mentioned oil-polluted water regulating tank, wherein, oil spilling cloth stream pipe and oil spilling cloth head piece thereof that described oil reservoir absorption cloth stream assembly comprises eddy flow oil spilling chamber, is connected with the oil spilling chamber.
The built-in water-oil separating degreasing unit of above-mentioned oil-polluted water regulating tank, wherein, described core intersection warning automatic oil draining system comprises core intersection alarm sensor, oil drain solenoid valve and is arranged on sensor signal lines anti-explosion cable pipe between this sensor and the magnetic valve.
The built-in water-oil separating degreasing unit of above-mentioned oil-polluted water regulating tank, wherein, the water outlet water distribution mouth on described eddy flow water outlet collection chamber top is the tubular guidewire circulation road, the water conservancy diversion direction and the horizontal plane of this flow-guiding channel are obliquely installed.
The built-in water-oil separating degreasing unit of above-mentioned oil-polluted water regulating tank, wherein, described splash pan is provided with a slip oil guide pipe that circumferentially is connected with the bottom of oil-collection funnel, and the outer wall of this slip oil guide pipe is provided with a sliding sleeve, and the bottom of this sliding sleeve sets firmly a casing flange;
The centre of described splash pan is equipped with an adjusting screw(rod), and the fixed support muscle of this adjusting screw(rod) is connected on the described casing flange;
Be arranged with an adjusting nut on the described adjusting screw(rod), fixedly muscle one end of this adjusting nut is fixed on the nut, and the other end is fixed on the inwall of oil-collection funnel.
The built-in water-oil separating degreasing unit of above-mentioned oil-polluted water regulating tank, wherein, jar inspection manhole in a jar below is provided with in the described permanent water level.
The built-in water-oil separating degreasing unit of the utility model oil-polluted water regulating tank makes it compared with prior art owing to adopted above-mentioned technical scheme, has following advantage and good effect:
The utility model since will be original time water-out manners change the upper water-out mode into, and increased the oil reservoir adsorption structure; Simultaneously, also splash pan is arranged to the adjustable height splash pan, thereby has been improved removal ability effectively, reduced the oil content of comprehensive water outlet small particle diameter oil and small suspension.
2. the utility model is owing to set up supporting core intersection warning and automatic control oil draining system, this corollary system is made up of core intersection warning device, splash pan, oil guide pipe and explosion-proof solenoid valve, can really realize automatic oil draining, and it is low to receive oily moisture content, needn't do second dehydration, thereby solved in the prior art float bowl-type preferably and float and receive oily water content and control problems such as difficulty is big greatly, manually, improved the utilization rate and the ease for operation of follow-up slop tank.
The utility model handles also to provide more reliably ensureing to the subsequent technique of sewage, sump oil separator when further reducing total water outlet oil content.
Description of drawings
By following to the built-in water-oil separating degreasing unit of the utility model oil-polluted water regulating tank an embodiment and in conjunction with the description of its accompanying drawing, can further understand purpose, specific structural features and the advantage of its invention.Wherein, accompanying drawing is:
Fig. 1 is the built-in water-oil separating degreasing unit of a utility model oil-polluted water regulating tank general structure schematic diagram;
Fig. 2 is the structural representation of built-in water-oil separating assembly among Fig. 1;
Fig. 3 is the structural representation of adjustable height splash pan among Fig. 1 or Fig. 2.
In the accompanying drawing:
1. oil-polluted water regulating tank (outer jar), 11. oil-polluted water regulating tank water inlet, 111. oil-polluted water regulating tank water inlet pipe, 12. oil-polluted water regulating tank delivery port, 13. oil-polluted water regulating tank oil drain outs, 131. oil-polluted water regulating tank oil exit pipes, 14. inside and outside jar of communicating pipe, 15. inside and outside jar of communicating valve, 16. oil-polluted water regulating tank manholes, 17. oil-polluted water regulating tank Installation and Debugging holes; 2. in the permanent water level jar (interior jar), 21. interior jar overflows water pipe, 22. interior jar of support roof beam structure, 23. interior jar of inspection manhole 3. built-in water-oil separating assemblies, 31. cyclone separators, 311. eddy flow water outlet collection chambers, 312. water outlet water distribution mouth, 313. at the bottom of the water chamber back taper, 314. water chambers sink the mud floss hole, 315. cavitys install and fix gusset, 316. cyclone separator water inlet manifold, 317. separating cyclone tube, 318. oil guide pipes, 319. rotational flow separation water inlet distributing pipe, 32. oil reservoir absorption cloth stream assembly, 321. rotational flow separation oil spilling chamber, 322. oil spilling cloth stream pipe, 323. oil spilling cloth head pieces; 4. core intersection alarm sensor, 41. sensor signal lines explosion stacks; 5. oil drain solenoid valve 6. contains the electrical control cubicles of liquid level difference instrument; 7. splash pan, 71. profiles of tooth are received oily weir, 72. oil-collection funnels, 73. slip oil guide pipes, 74. sliding sleeves, 75. casing flanges, 76. screw rod fixed support muscle, 77. screw rods, 78. nuts, 79. nuts and oil-collection funnel be muscle fixedly; 8. the heavy mud pipe of eddy flow water chamber.
The specific embodiment:
Referring to Fig. 1, cooperation is referring to Fig. 2,3, the built-in water-oil separating degreasing unit of oil-polluted water regulating tank shown in the figure, mainly comprise in the permanent water level that is arranged between two parties in the oil-polluted water regulating tank 1 jars 2, by roof beam structure 22 be fixed in jar 2 axis middle and upper parts in the permanent water level water-oil separating assembly 3, be installed in the splash pan 7 on the water-oil separating assembly 3; Its water-oil separating assembly 3 mainly comprises a cyclone separator 31; The oil guide pipe 73 of splash pan 7 bottoms is connected with the oil exit pipe 131 of oil-polluted water regulating tank 1, and wherein, it is affixed that the cavity on roof beam structure 22 and the water-oil separating assembly 3 installs and fixes gusset 315.
Water level in order to ensure in the permanent water level jar 2 is constant, is provided with specially on the tank skin of the utility model jar 2 in permanent water level and overflows water pipe 21; And interior jars 2 bottom is affixed with the jar end of oil-polluted water regulating tank 1, in making jars 2 with outer jar 1 between completely cut off mutually.The setting of jar 2 in this perseverance water level, when guaranteeing that oil-polluted water has the sufficient time of staying in jar, also the stable receipts oil for built-in water-oil separating degreasing unit provides advantage.
The Installation and Debugging and the service work of equipment for convenience, the utility model also is provided with an Installation and Debugging hole 17 at the top of oil-polluted water regulating tank 1, thereunder is provided with an inspection manhole 16, and the clear bricklayer when being convenient to periodic inspection does.In addition, facts have proved that if install heavy mud awl bucket additional in interior jar 2, because heavy mud is mobile relatively poor, heavy mud is not easy to therefore act on unsatisfactory by the discharging of longer pipe road.In the utility model only in permanent water level jars 2 below jar inspection manhole 23 one in is set sink mud so that regularly remove together with oil-polluted water regulating tank 1.And, in permanent water level, be provided with on communicating pipe 14, communicating pipe 14 between jar 2 and the oil-polluted water regulating tank 1 and be provided with communicating valve 15, so that the balance of liquid level between inside and outside tank body being carried out keep when the water pressure test and other discharge water operation it jar, and guarantee that this communicating valve 15 is in closing state all the time under normal operating mode.
Water-oil separating assembly 3 of the present utility model also comprises the oil reservoir absorption cloth stream assembly 32 that is arranged on cyclone separator 31 tops.A large amount of tests show: because separating cyclone tube 317 operating pressures that adopted are lower, what therefore its top oil spilling mouth was discharged is not to be high concentration oil, but the higher oil water mixture of moisture content, this profit mixing effluent can form the moving in certain zone with the motion of discharge currents under liquid level, thereby influences the come-up of oil droplet.At this phenomenon, the utility model is provided with oil reservoir absorption cloth stream assembly 32 above rotational flow separation oil spilling mouth.Oil spilling cloth stream pipe 322 and oil spilling cloth head piece 323 thereof that this oil reservoir absorption cloth stream assembly 32 comprises eddy flow oil spilling chamber 321, is connected with oil spilling chamber 321.The setting of this oil reservoir absorption cloth stream assembly 32, realized that oil spilling cloth head piece 323 discharges oil water mixtures and remain constantly with oil reservoir and contact, make the oil droplet in the oil water mixture separate come-up better, and make and overflow stream and unlikely liquid level is caused larger interference, to reach best receipts oil effect.
Cyclone separator 31 of the present utility model comprises separating cyclone tube 317, rotational flow separation water inlet distributing pipe 319, eddy flow water outlet collection chamber 311; The top of this eddy flow water outlet collection chamber 311 circumferentially evenly is provided with water outlet water distribution mouth 312 at interval, and its underpart is provided with heavy mud floss hole 314; Cyclone separator water inlet manifold 316 is connected with the water inlet 11 of oil-polluted water jar 1.The water outlet water distribution mouth 312 on eddy flow water outlet collection chamber 311 tops is the tubular guidewire circulation road, and the water conservancy diversion direction and the horizontal plane of this flow-guiding channel are obliquely installed.Because separating cyclone tube 317 inlet pressures that adopt are lower, some small particle diameter oil can't form wick and upwards discharge in pipe, and they are still discharged from the bottom of separating cyclone tube 317 with water mostly.And original technology is to adopt the bottom water-out manners, and outlet part distance of positions liquid level is darker, and the last buoyancy of small particle diameter oil is relatively poor simultaneously, is therefore just being taken to by water outlet outside the jar under come-up and the removed situation as yet substantially, thereby water outlet oil-containing index can not be fallen.Adopt the angled upper water-out mode of eddy flow water chamber in the utility model, can make the small particle diameter oil of separated aqueous phase contact liquid level oil slick layer again angularly with water outlet, make them be adsorbed come-up as far as possible once more, thereby strengthened removal ability small particle diameter oil in the water outlet.
It is higher to receive oily water content because of floating in the former technology, and artificial oil extraction operation lacks the core intersection foundation, discharges more water easily.Therefore the utility model has been set up core intersection warning automatic oil draining system above water-oil separating assembly 3.This core intersection warning automatic oil draining system comprises core intersection alarm sensor 4, oil drain solenoid valve 5, is provided with the electrical control cubicles 6 of liquid level difference instrument in it and is arranged on sensor 4 and magnetic valve 5, electrical control cubicles 6 between sensor signal lines anti-explosion cable pipe 41.
Groundwork process of the present utility model is roughly as follows:
Oil-polluted water directly enters cyclone separator 31 by water inlet 11 by sewage jar water inlet pipe 111, oil phase thing after rotational flow separation enters eddy flow oil spilling chamber 321 from top, contact with the formed oil reservoir of liquid level through oil spilling cloth stream pipe 322, oil spilling cloth head piece 323, constantly come-up continues to amass into oil reservoir.When oil reservoir is increased to certain thickness (predeterminable), core intersection alarm 4 sends instruction control oil drain solenoid valve 5 and opens, and the oil of come-up receives by the profile of tooth of splash pan 7 that oil guide pipe 318 is flowed through on oily weir 71, the sewage jar oil exit pipe 131, the oil drain solenoid valve 5 that are located on the sewage jar oil drain out 13 are discharged into sump oil collecting tank (not shown).When core intersection reduces to a certain degree (predeterminable), core intersection alarm sensor 4 sends instruction control oil drain solenoid valve 5 and closes.Water after spinning liquid separates is by the upper water-out water distribution mouth 312 on eddy flow shunting top, chamber, the separation of floating once more of water distribution below oil reservoir at a certain angle, the not treatable small particle diameter oil of rotational flow separation.In the permanent water level the clean relatively water in jar 2 middle and lower parts by from overflow pipe 21 overflows of bottom water intaking to interior jar 2 with outer jar 1 between the tank field in, and discharge outlet 12 discharges of the bottom by outer jar 1.Heavy mud in the rotational flow separation chamber 311 313 compiles at the bottom of by the water chamber back taper, discharges via the heavy mud pipe 8 of eddy flow water chamber.
Claims (6)
1, the built-in water-oil separating degreasing unit of oil-polluted water regulating tank, comprise in the permanent water level that is arranged between two parties in the oil-polluted water regulating tank jar, by roof beam structure be fixed in jar axis middle and upper part in the permanent water level the water-oil separating assembly, be installed in the splash pan on the water-oil separating assembly; Described water-oil separating assembly comprises cyclone separator; The oil guide pipe of described splash pan bottom is connected with the oil exit pipe of oil-polluted water regulating tank; It is characterized in that:
The tank skin of jar is provided with and overflows water pipe in the described permanent water level; Its bottom is affixed with the jar end of oil-polluted water regulating tank, and is isolated mutually between interior jar and outer jar; Be provided with communicating pipe between jar and the oil-polluted water regulating tank in this perseverance water level, communicating pipe be provided with communicating valve;
This water-oil separating assembly also comprises the oil reservoir absorption cloth stream assembly that is arranged on the cyclone separator top;
Described cyclone separator comprises separating cyclone tube, rotational flow separation water inlet tube distributing pipe, eddy flow water outlet collection chamber;
The top of described eddy flow water outlet collection chamber circumferentially evenly is provided with the water outlet water distribution mouth at interval, and its underpart is provided with heavy mud floss hole; Described rotational flow separation water inlet manifold is connected with the water inlet of oil-polluted water jar;
Described splash pan is the adjustable height splash pan;
The top of described water-oil separating assembly also is provided with core intersection warning automatic oil draining system.
2, the built-in water-oil separating degreasing unit of oil-polluted water regulating tank as claimed in claim 1 is characterized in that: oil spilling cloth stream pipe and oil spilling cloth head piece thereof that described oil reservoir absorption cloth stream assembly comprises eddy flow oil spilling chamber, is connected with the oil spilling chamber.
3, the built-in water-oil separating degreasing unit of oil-polluted water regulating tank as claimed in claim 1 is characterized in that: described core intersection warning automatic oil draining system comprises core intersection alarm sensor, oil drain solenoid valve and is arranged on sensor signal lines anti-explosion cable pipe between this sensor and the magnetic valve.
4, the built-in water-oil separating degreasing unit of the oil-polluted water regulating tank described in claim 1 is characterized in that: the water outlet water distribution mouth on described eddy flow water outlet collection chamber top is the tubular guidewire circulation road, and the water conservancy diversion direction and the horizontal plane of this flow-guiding channel are obliquely installed.
5, the built-in water-oil separating degreasing unit of oil-polluted water regulating tank as claimed in claim 1 is characterized in that:
Described splash pan is provided with a slip oil guide pipe that circumferentially is connected with the bottom of oil-collection funnel, and the outer wall of this slip oil guide pipe is provided with a sliding sleeve, and the bottom of this sliding sleeve sets firmly a casing flange;
The centre of described splash pan is equipped with an adjusting screw(rod), and the fixed support muscle of this adjusting screw(rod) is connected on the described casing flange;
Be arranged with an adjusting nut on the described adjusting screw(rod), fixedly muscle one end of this adjusting nut is fixed on the nut, and the other end is fixed on the inwall of oil-collection funnel.
6, the built-in water-oil separating degreasing unit of oil-polluted water regulating tank as claimed in claim 1 is characterized in that: jar inspection manhole in the below of jar is provided with in the described permanent water level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520045692 CN2838719Y (en) | 2005-10-17 | 2005-10-17 | The built-in water-oil separating degreasing unit of oil-polluted water regulating tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520045692 CN2838719Y (en) | 2005-10-17 | 2005-10-17 | The built-in water-oil separating degreasing unit of oil-polluted water regulating tank |
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| CN2838719Y true CN2838719Y (en) | 2006-11-22 |
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| CN 200520045692 Expired - Fee Related CN2838719Y (en) | 2005-10-17 | 2005-10-17 | The built-in water-oil separating degreasing unit of oil-polluted water regulating tank |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102985369A (en) * | 2009-12-24 | 2013-03-20 | 戈斯兰有限公司 | Separator for low discharge applications |
| CN104402087A (en) * | 2014-11-28 | 2015-03-11 | 中冶东方工程技术有限公司 | Magnetic cyclone filtering device |
| CN104740900A (en) * | 2015-01-30 | 2015-07-01 | 中兴农谷湖北有限公司 | High-efficiency liquid-liquid separator |
| CN107162309A (en) * | 2017-07-04 | 2017-09-15 | 浙江海洋大学 | A kind of cut oil wastewater treatment equipment based on Thermo-sensitive magnetic nano material |
| CN110127809A (en) * | 2019-05-29 | 2019-08-16 | 湖南宇宙环保工程有限公司 | A kind of pure physics water quality reforming system of oily wastewater |
| CN110845044A (en) * | 2019-11-20 | 2020-02-28 | 徐州市国栋生化装备有限公司 | Oily industrial wastewater treatment device and use method thereof |
| US10662081B2 (en) | 2018-05-11 | 2020-05-26 | Gas Liquids Engineering, Ltd. | Skim tank for treating production fluids |
| CN114715972A (en) * | 2022-04-08 | 2022-07-08 | 北京安德兴石油技术有限公司 | Oily sewage treatment device |
| CN115814470A (en) * | 2023-02-22 | 2023-03-21 | 森诺科技有限公司 | Adjustable oil collecting device for oil removal tank or air-floating tank |
-
2005
- 2005-10-17 CN CN 200520045692 patent/CN2838719Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102985369A (en) * | 2009-12-24 | 2013-03-20 | 戈斯兰有限公司 | Separator for low discharge applications |
| CN104402087A (en) * | 2014-11-28 | 2015-03-11 | 中冶东方工程技术有限公司 | Magnetic cyclone filtering device |
| CN104402087B (en) * | 2014-11-28 | 2016-05-04 | 中冶东方工程技术有限公司 | A kind of magnetic eddy filter |
| CN104740900A (en) * | 2015-01-30 | 2015-07-01 | 中兴农谷湖北有限公司 | High-efficiency liquid-liquid separator |
| CN107162309A (en) * | 2017-07-04 | 2017-09-15 | 浙江海洋大学 | A kind of cut oil wastewater treatment equipment based on Thermo-sensitive magnetic nano material |
| US10662081B2 (en) | 2018-05-11 | 2020-05-26 | Gas Liquids Engineering, Ltd. | Skim tank for treating production fluids |
| CN110127809A (en) * | 2019-05-29 | 2019-08-16 | 湖南宇宙环保工程有限公司 | A kind of pure physics water quality reforming system of oily wastewater |
| CN110127809B (en) * | 2019-05-29 | 2024-04-12 | 湖南宇宙环保工程有限公司 | Oily sewage pure physical water quality modification system |
| CN110845044A (en) * | 2019-11-20 | 2020-02-28 | 徐州市国栋生化装备有限公司 | Oily industrial wastewater treatment device and use method thereof |
| CN114715972A (en) * | 2022-04-08 | 2022-07-08 | 北京安德兴石油技术有限公司 | Oily sewage treatment device |
| CN115814470A (en) * | 2023-02-22 | 2023-03-21 | 森诺科技有限公司 | Adjustable oil collecting device for oil removal tank or air-floating tank |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |