CN210193551U - A central cylinder type double-plate spiral channel oil-water separator - Google Patents
A central cylinder type double-plate spiral channel oil-water separator Download PDFInfo
- Publication number
- CN210193551U CN210193551U CN201920570797.7U CN201920570797U CN210193551U CN 210193551 U CN210193551 U CN 210193551U CN 201920570797 U CN201920570797 U CN 201920570797U CN 210193551 U CN210193551 U CN 210193551U
- Authority
- CN
- China
- Prior art keywords
- oil
- double
- cylinder
- central
- outer cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 239000002351 wastewater Substances 0.000 claims abstract description 50
- 238000004939 coking Methods 0.000 claims abstract description 46
- 239000006260 foam Substances 0.000 claims abstract description 16
- 238000002156 mixing Methods 0.000 claims abstract description 16
- 239000003814 drug Substances 0.000 claims abstract description 11
- 239000010410 layer Substances 0.000 claims description 48
- 239000011229 interlayer Substances 0.000 claims description 4
- 230000002209 hydrophobic effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 10
- 238000001914 filtration Methods 0.000 abstract description 7
- 230000001112 coagulating effect Effects 0.000 abstract description 2
- 238000004062 sedimentation Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 74
- 230000005484 gravity Effects 0.000 description 8
- 239000000295 fuel oil Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000012528 membrane Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009300 dissolved air flotation Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Landscapes
- Physical Water Treatments (AREA)
Abstract
The utility model relates to a central cylinder type double-layer plate spiral channel oil-water separator, which comprises an outer cylinder body, a central cylinder, a double-layer plate spiral body, a central mixing chamber, a conical oil discharge hopper and a foam collector; a double-layer plate spiral body is arranged between the outer cylinder body and the central cylinder, a central mixing chamber is arranged at the bottom of the central cylinder, and a conical oil discharge hopper is connected to the bottom of the outer cylinder body; an outer cylinder body above the double-layer plate spiral body is provided with a coking wastewater inlet, the top of the central cylinder is provided with a foam collector, and the upper part of the central cylinder is provided with a water outlet pipe; the bottom of the central mixing chamber is provided with a compressed air releaser and a medicament inlet pipe; the double-layer plate spiral body is a double-layer plate structure consisting of an upper layer plate and a lower layer plate with a clamping layer, and the upper layer plate is provided with an oil filtering hole. The utility model discloses use tangential spiral water distribution and centrifugal separation theory as the basis, adopt the gas air supporting of dissolving, the combined process that coagulating sedimentation combined together carries out oil water separation to coking wastewater, can effectively reduce the content of heavy tar, light oil, emulsified oil in the coking wastewater simultaneously.
Description
Technical Field
The utility model relates to a coking wastewater pretreatment technical field especially relates to a center tube formula double-deck slab helical passage oil water separator.
Background
At present, the pretreatment of inlet water of coking wastewater is mainly ammonia distillation wastewater which contains a large amount of oil. The pretreatment process is often followed by a biochemical treatment process and a membrane treatment recycling process. When the oil content in the coking wastewater entering the biochemical treatment stage is more than 20mg/L, the biochemical treatment process is blocked, so that the normal operation cannot be realized, and when the oil content in the coking wastewater entering the membrane treatment recycling stage is more than 0.5mg/L, the membrane system is polluted and blocked, so that the normal operation is influenced. Therefore, the quality of the oil removal effect is very important for the subsequent treatment of the coking wastewater.
The currently and generally adopted oil removal device is a gravity oil removal tank which is mainly used for removing heavy oil in coking wastewater; or removing light oil and emulsified oil by adopting a dissolved air flotation machine. All the devices have the defects of low oil removal efficiency, large occupied area and incapability of automatically removing oil and the like. The latest combined oil removal technology is a constant-section orifice plate type double-helix oil-water separator, the equipment integrates the advantages of gravity oil removal and air flotation oil removal, the structural design is reasonable, and compared with the traditional oil removal mode, the equipment has great optimization and progress.
The Chinese patent application with publication number CN 107902721A discloses a constant-section orifice plate type double-helix oil-water separator and an oil-water separation method, wherein in the constant-section orifice plate type double-helix oil-water separator, a separator body consists of a cylinder and a conical oil discharge hopper, a mixing chamber is arranged at the lower part of the cylinder, and a coking wastewater inlet, a compressed air inlet and a medicament inlet are respectively arranged on the cylinder at one side of the mixing chamber; the upper part of the cylinder body is provided with an oil wiper, the cylinder bodies on the two sides of the oil wiper are respectively provided with a water outlet and a light oil and scum outlet, the middle part of the oil wiper is provided with an exhaust pipe, and a foam collector is arranged below the oil wiper; a spiral plate is arranged along the height direction from the upper water outlet to the bottom of the cylinder body; the bottom outlet of the conical oil discharge hopper is connected with the inlet of the screw conveyer, and the outlet of the screw conveyer is a heavy tar discharge port. The technical scheme is based on the gravity separation and centrifugal separation theory, adopts the process of combining dissolved air floatation, cyclone reaction and inclined plate precipitation technologies to separate oil from water in the coking wastewater, and can effectively reduce the contents of heavy tar, light oil and emulsified oil in the coking wastewater. However, the above technical solutions still have the following drawbacks in actual operation:
coking wastewater enters a mixing chamber of the oil-water separator from the lower part, microbubbles generated by compressed air are mixed with the coking wastewater and then are lifted and drained by a spiral plate, and the coking wastewater is subjected to oil-water separation under the action of centrifugal force and gravity. Because one part of the acting force of the oil in the coking wastewater is gravity, the direction is downward, the other part of the oil is acted by the compressed air, the direction is upward, the acting force of the two parts can be mutually offset to a certain extent, and the heavy oil and the light oil are difficult to effectively separate. In addition, coking wastewater is difficult to form upward flow along the spiral plate completely according to a preset track, and short flow is easy to form, so that the oil-water separation effect is poor.
Disclosure of Invention
The utility model provides a center cylinder formula double-deck board helical coiled passage oil water separator to tangential spiral water distribution and centrifugal separation theory are the basis, adopt the gas air supporting of dissolving, the combined process that coagulating sedimentation combined together carries out oil water separation to coking wastewater, can effectively reduce the content of heavy tar, light oil, emulsified oil in the coking wastewater simultaneously.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a central cylinder type double-layer plate spiral channel oil-water separator comprises an outer cylinder body, a central cylinder, a double-layer plate spiral body, a central mixing chamber, a conical oil discharge hopper and a foam collector; the central cylinder is arranged in the middle of the outer cylinder body, a double-layer plate spiral body is arranged between the outer cylinder body and the central cylinder body along the height direction, a central mixing chamber is arranged at the bottom of the central cylinder body, and a conical oil discharge hopper is connected to the bottom of the outer cylinder body; one side of the outer cylinder body positioned above the top of the double-layer plate spiral body is provided with a coking wastewater inlet, and the top of the outer cylinder body is provided with an exhaust pipe; the top of the central cylinder is provided with a foam collector, one side of the upper part of the central cylinder is provided with a water outlet pipe, and the water outlet of the water outlet pipe extends out of the outer cylinder body; the bottom of the central mixing chamber is provided with a compressed air releaser and a medicament inlet pipe, the compressed air releaser is connected with the compressed air inlet pipe, and the compressed air inlet pipe and the medicament inlet pipe respectively penetrate out of the outer cylinder and are connected with a corresponding compressed air conveying pipeline and a corresponding medicament conveying pipeline; the double-layer plate spiral body is of a double-layer plate structure consisting of an upper layer plate and a lower layer plate and provided with a clamping layer, and the upper layer plate is provided with an oil filtering hole; the bottom of the conical oil discharge hopper is provided with a heavy tar outlet.
The axis of the central cylinder coincides with the axis of the outer cylinder.
The foam collector is arranged in the middle of the central cylinder and is of a cone structure with a large upper part and a small lower part, the center of the bottom is connected with a light oil and scum discharge pipe, and an outlet of the light oil and scum discharge pipe extends out of the outer cylinder body.
The two sides of the double-layer plate spiral body are respectively fixedly connected with the inner wall of the outer barrel body and the outer wall of the central barrel, the bottom end of the double-layer plate spiral body is flush with the bottom of the central barrel, and the double-layer plate spiral body inclines downwards in a spiral manner around the axis of the central barrel from the coking wastewater inlet to the bottom of the central barrel; the double-layer plate spiral body, the outer cylinder body and the central cylinder form a spiral channel for flowing wastewater together; the upper plate and the lower plate of the double-layer plate spiral body form a spiral channel for heavy tar to flow together with the inner wall of the outer cylinder body and the outer wall of the central cylinder body.
The upper plate and the lower plate are both made of hydrophobic materials.
The oil filtering holes are densely distributed on the upper plate, and gradually increase in number from the direction close to one side of the central cylinder to the direction close to one side of the outer cylinder.
The central axis of the coking wastewater inlet is parallel to the tangential direction of the outer cylinder.
And a screw conveyor is arranged at a heavy tar outlet at the bottom of the conical oil discharge hopper.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the double-layer barrel is adopted, and the central barrel and the outer barrel are coaxially arranged, so that an inflow path and an outflow path of the coking wastewater are effectively separated, the mutual offset of air floatation oil removal and gravity oil removal can be avoided, and the oil-water separation effect is ensured;
2) the double-layer plate spiral body is arranged, so that the flowing path of the coking wastewater is prolonged, the gravity settling distance of heavy tar in the coking wastewater is shortened, and the separation efficiency of the heavy tar is effectively improved;
3) the settled heavy tar can be filtered into the interlayer by the double-layer plate spiral body and then guided to flow downwards by the lower layer plate, so that the phenomenon that the settled heavy tar returns to the water again due to the turbulent flow of water is avoided, and the reliability of heavy tar separation is improved;
4) the coking wastewater adopts tangential water inlet, the centrifugal force effect is fully utilized, and the separation efficiency of heavy tar in the wastewater can be further improved.
Drawings
Fig. 1 is a schematic structural diagram of a central cylinder type double-layer plate spiral channel oil-water separator of the present invention.
Fig. 2 is a view a-a in fig. 1.
Fig. 3 is a view B-B in fig. 1.
In the figure: 1. outer cylinder 2, central cylinder 3, double-layer plate spiral body 31, upper plate 32, lower plate 33, oil filter hole 4, central mixing chamber 5, conical oil discharge hopper 6, screw conveyer 7, foam collector 8, water outlet pipe 9, coking wastewater inlet 10, medicament inlet pipe 11, compressed air inlet pipe 12, heavy tar outlet 13, light oil and scum discharge pipe 14, exhaust pipe 15, compressed air releaser I, upper water flow area II and lower heavy oil area
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 1, the central cylinder type double-layer plate spiral channel oil-water separator of the present invention comprises an outer cylinder body 1, a central cylinder 2, a double-layer plate spiral body 3, a central mixing chamber 4, a conical oil discharge hopper 5 and a foam collector 7; the central cylinder 2 is arranged in the middle of the outer cylinder 1, a double-layer plate spiral body 3 is arranged between the outer cylinder 1 and the central cylinder 2 along the height direction, a central mixing chamber 4 is arranged at the bottom of the central cylinder 2, and a conical oil discharge hopper 5 is connected to the bottom of the outer cylinder 1; a coking wastewater inlet 9 is arranged at one side of the outer cylinder body 1 above the top of the double-layer plate spiral body 3, and an exhaust pipe 14 is arranged at the top of the outer cylinder body 1; the top of the central cylinder 2 is provided with a foam collector 7, one side of the upper part of the central cylinder 2 is provided with a water outlet pipe 8, and the water outlet of the water outlet pipe 8 extends out of the outer cylinder 1; the bottom of the central mixing chamber 4 is provided with a compressed air releaser 15 and a medicament inlet pipe 10, the compressed air releaser 15 is connected with a compressed air inlet pipe 11, and the compressed air inlet pipe 11 and the medicament inlet pipe 10 respectively penetrate out of the outer cylinder 1 and then are connected with a corresponding compressed air conveying pipeline and a corresponding medicament conveying pipeline; as shown in fig. 3, the double-layer plate spiral body 3 is a double-layer plate structure with a sandwich layer and composed of an upper plate 31 and a lower plate 32, wherein the upper plate 31 is provided with an oil filtering hole 33; the bottom of the conical oil discharge hopper 5 is provided with a heavy tar outlet 12.
The axis of the central cylinder 2 coincides with that of the outer cylinder 1.
The foam collector 7 is arranged in the middle of the central cylinder 2, the foam collector 7 is in a cone structure with a large upper part and a small lower part, the center of the bottom is connected with a light oil and scum discharge pipe 13, and the outlet of the light oil and scum discharge pipe 13 extends out of the outer cylinder 1.
The two sides of the double-layer plate spiral body 3 are respectively fixedly connected with the inner wall of the outer barrel body 1 and the outer wall of the central barrel 2, the bottom end of the double-layer plate spiral body 3 is flush with the bottom of the central barrel 2, and the double-layer plate spiral body 3 inclines downwards spirally around the axis of the central barrel 2 from the coking wastewater inlet 9 to the bottom of the central barrel 2; the double-layer plate spiral body 3, the outer cylinder body 1 and the central cylinder 2 form a spiral channel for flowing wastewater together; the upper plate 31 and the lower plate 32 of the double-layer plate spiral body 3, the inner wall of the outer cylinder body 1 and the outer wall of the central cylinder 2 form a spiral channel for heavy tar to flow.
The upper plate 31 and the lower plate 32 are both made of hydrophobic materials.
The oil filtering holes 33 are densely distributed on the upper plate 31, and the number of the oil filtering holes 33 gradually increases from the side close to the central cylinder 2 to the side close to the outer cylinder 1.
As shown in fig. 2, the central axis of the coking wastewater inlet 9 is parallel to the tangential direction of the outer cylinder 1.
And a screw conveyor 6 is arranged at a heavy tar outlet at the bottom of the conical oil discharge hopper 5.
Based on center cylinder formula bilayer plate helical channel oil water separator's oil water separating method as follows:
1) coking wastewater enters the central cylinder 2 from a coking wastewater inlet 9 at a set flow rate along the tangential direction and then flows downwards along a spiral channel formed by the double-layer plate spiral body 3, the outer cylinder body 1 and the central cylinder 2;
2) in the process that the coking wastewater flows along the spiral channel, heavy tar with higher density is thrown to one side close to the outer cylinder body 1 under the action of centrifugal force, meanwhile, the heavy tar is settled at the top of the upper plate 31 under the action of gravity and enters the interlayer along the oil filtering hole 33, and finally, under the combined action of two acting forces, the heavy tar is separated from the coking wastewater in the process of flowing downwards along the spiral channel; the heavy tar separated and settled into the interlayer flows downwards along the lower plate 32 under the action of the dead weight (a lower heavy oil area II shown in figure 3), and finally is collected into the conical oil drain hopper 5 and settled to the bottom, and is discharged through the screw conveyor 6;
3) the coking wastewater after the heavy tar is separated flows downwards (an upper layer water flow area I shown in figure 3) along an upper plate 31 into a conical oil drain hopper 5, and under the action of water supply pressure, the coking wastewater after the heavy tar is removed turns back and upwards enters a central cylinder 2 from the lower end of the central cylinder 2; compressed air and a mixed agent consisting of a coagulant and a demulsifier are introduced into the bottom in the central cylinder 2, and are fully mixed with the coking wastewater which turns back upwards to form an upward flow; the compressed air generates micro-bubbles in the coking wastewater under the action of the compressed air releaser 15, the micro-bubbles are fully contacted with light oil and oil residues separated from the coking wastewater under the action of a medicament, so that the light oil and the oil residues are adhered to the micro-bubbles and move upwards along the water flow direction along with the micro-bubbles, and finally, the light oil and the oil residues are gathered at the upper part of the central cylinder 2 to form a light oil and oil residue layer which is discharged through the foam collector 7;
4) the coking wastewater with light oil and oil residue removed from the upper part of the central cylinder 2 is discharged through the water outlet pipe 8, and the oil-water separation process of the coking wastewater is completed.
The heavy oil removal rate of the coking wastewater after the oil-water separation process is more than or equal to 99 percent, the light oil removal rate is more than or equal to 99 percent, the emulsified oil removal rate is 80-90 percent, and the dissolved oil removal rate is 40-50 percent; when the oil content of the inlet water of the coking wastewater is more than or equal to 50mg/L, the oil content of the outlet water is less than 5 mg/L.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920570797.7U CN210193551U (en) | 2019-04-25 | 2019-04-25 | A central cylinder type double-plate spiral channel oil-water separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920570797.7U CN210193551U (en) | 2019-04-25 | 2019-04-25 | A central cylinder type double-plate spiral channel oil-water separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210193551U true CN210193551U (en) | 2020-03-27 |
Family
ID=69878402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920570797.7U Withdrawn - After Issue CN210193551U (en) | 2019-04-25 | 2019-04-25 | A central cylinder type double-plate spiral channel oil-water separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210193551U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110028180A (en) * | 2019-04-25 | 2019-07-19 | 中冶焦耐(大连)工程技术有限公司 | Central cylinder type double-layer plate spiral channel oil-water separator and oil-water separation method |
| CN120117697A (en) * | 2025-04-22 | 2025-06-10 | 泰州市华锦分子筛有限公司 | Alumina production wastewater filtration equipment |
| CN120736623A (en) * | 2025-09-05 | 2025-10-03 | 陕西一诺油气工程技术服务有限公司 | An automatic treatment device for oil well production wastewater |
-
2019
- 2019-04-25 CN CN201920570797.7U patent/CN210193551U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110028180A (en) * | 2019-04-25 | 2019-07-19 | 中冶焦耐(大连)工程技术有限公司 | Central cylinder type double-layer plate spiral channel oil-water separator and oil-water separation method |
| CN110028180B (en) * | 2019-04-25 | 2023-09-19 | 中冶焦耐(大连)工程技术有限公司 | A central cylinder type double-layer plate spiral channel oil-water separator and oil-water separation method |
| CN120117697A (en) * | 2025-04-22 | 2025-06-10 | 泰州市华锦分子筛有限公司 | Alumina production wastewater filtration equipment |
| CN120736623A (en) * | 2025-09-05 | 2025-10-03 | 陕西一诺油气工程技术服务有限公司 | An automatic treatment device for oil well production wastewater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110028180B (en) | A central cylinder type double-layer plate spiral channel oil-water separator and oil-water separation method | |
| CN1317200C (en) | A vertical flow automatic oil separation and sedimentation device | |
| CN101417184B (en) | Gas floatation separation device | |
| WO2011160271A1 (en) | Purification processing device of oil-containing sewage | |
| CN210193551U (en) | A central cylinder type double-plate spiral channel oil-water separator | |
| CN107902721A (en) | Constant cross-section orifice type double-helix oil-water separator and oil-water separation method | |
| CN101543694A (en) | Solid-liquid separating device and solid-liquid separating process with filtering and air separating machine | |
| CN109626505B (en) | Turbulent air-floatation oil-removal water-purifying device | |
| CN114890560B (en) | Delayed coking wastewater fine particle removal process device | |
| CN205398327U (en) | Modularization oil -containing sewage treatment system | |
| CN202315444U (en) | Multilayer precipitator | |
| CN202246207U (en) | High-efficient sink solid-liquid separation equipment that floats | |
| CN109354246B (en) | High-concentration sewage rapid treatment device and treatment method thereof | |
| CN100457227C (en) | Rotational flow microporous filter | |
| CN202968270U (en) | Water treatment device of oil water separator | |
| CN102320679B (en) | Spiral-flow type corrugated plate oil separation pool | |
| CN215592767U (en) | Three-phase rotational flow extraction device | |
| CN208471608U (en) | A kind of cyclone air-flotation combination unit | |
| CN215161537U (en) | Air flotation oil separator | |
| CN102603032A (en) | Waste oil separation device | |
| CN101139122A (en) | Multifunctional oil-contained waste water treatment device | |
| CN209226738U (en) | A high-concentration sewage rapid treatment device | |
| CN201729720U (en) | NZ-MHS sewage purifier | |
| CN207738486U (en) | Constant-section orifice plate type double-helix oil-water separator | |
| CN207347357U (en) | A kind for the treatment of facilities of eddy flow intensive filtration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200327 Effective date of abandoning: 20230919 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200327 Effective date of abandoning: 20230919 |