CN113800612A - Continuous coagulation sedimentation and separator and continuous coagulation sedimentation device - Google Patents
Continuous coagulation sedimentation and separator and continuous coagulation sedimentation device Download PDFInfo
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- CN113800612A CN113800612A CN202010549954.3A CN202010549954A CN113800612A CN 113800612 A CN113800612 A CN 113800612A CN 202010549954 A CN202010549954 A CN 202010549954A CN 113800612 A CN113800612 A CN 113800612A
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- coagulation sedimentation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
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- Hydrology & Water Resources (AREA)
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- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The application relates to a continuous coagulation sedimentation and separator and a continuous coagulation sedimentation device, the continuous coagulation sedimentation device is provided with a continuous coagulation sedimentation and separator, the continuous coagulation sedimentation and separator comprises: the coagulation sedimentation media extend along the flowing direction of the fluid, the coagulation sedimentation media are arranged in an overlapping mode in the same direction and have preset intervals, and the coagulation sedimentation media and a horizontal plane have preset inclination angles; the coagulation sedimentation medium comprises an upper surface and a lower surface, wherein the lower surface is provided with a plurality of coagulation sedimentation areas distributed along the flow direction of the fluid; the coagulation sedimentation media are arranged to cause the fluids to undergo a coagulation reaction in each coagulation sedimentation zone in succession in the direction of flow, so that small particles form larger particles in the coagulation sedimentation zone, the larger particles sinking to the upper surface of the adjacent coagulation sedimentation media and flowing from the top to the bottom. The fine particles are removed, and the efficiency is improved.
Description
Technical Field
The application relates to the technical field of coagulation and sedimentation treatment of produced water in oil and gas fields, in particular to a continuous coagulation and sedimentation device and a separator.
Background
The treatment of the produced water of the oil and gas field is one of the important links in the development process of the oil and gas field, the treatment technology of the produced water is various to adapt to different water quality requirements, the pressure technology is one of the technologies with wider application, about 20 percent of the produced water of the oil and gas field adopts the pressure sedimentation process at present, the sedimentation efficiency of the sedimentation process is improved, and the method has very important significance in solving the problems in the process production.
In the related technology, the pressure settling process is mainly formed by combining a coagulation reaction process and an efficient separation process. The principle is that firstly, the oily sewage and the coagulating agent are coagulated, so that the tiny particles in the sewage can be changed into larger particles to achieve the aim of easy separation, and the rear-end process utilizes the shallow pool theory, and an inclined plate or an inclined pipe is additionally arranged, so that the settling distance is reduced, and the settling area is increased. The inventor of the application finds that the related art has the problem of poor purification effect.
Disclosure of Invention
In order to solve the above technical problem or at least partially solve the above technical problem, the present application provides a continuous coagulation sedimentation and separator and a continuous coagulation sedimentation device.
In a first aspect, the present application provides a continuous coagulation sedimentation and separator comprising: the coagulation sedimentation media extend along the flowing direction of the fluid, the coagulation sedimentation media are arranged in an overlapping mode in the same direction and have preset intervals, the coagulation sedimentation media and the horizontal plane have preset inclination angles, and the fluid comprises suspended matters and a water phase; the coagulation sedimentation medium comprises an upper surface and a lower surface, wherein the lower surface is provided with a plurality of coagulation sedimentation areas distributed along the flow direction of the fluid; the coagulation sedimentation media are set to enable fluid to perform coagulation reaction in each coagulation sedimentation area in sequence in the flowing direction, so that small particles form larger particles in the coagulation sedimentation areas, and the larger particles sink to the upper surface of the adjacent coagulation sedimentation media and flow from the top to the bottom.
In certain embodiments, the coagulation sedimentation zone is formed by a partition provided at the lower surface, the partition extending along the top to the bottom of the coagulation sedimentation medium.
In certain embodiments, the upper surface is a smooth flat surface.
In some embodiments, the predetermined angle of inclination is an angle between the lower surface and the horizontal plane, and the angle is 60 °.
In certain embodiments, the lower surface of the coagulation sedimentation medium is spaced apart from the upper surface of the adjacent coagulation sedimentation medium by a distance L, the depth of the coagulation sedimentation zone is 2/3L, and the width of the coagulation sedimentation zone is 1.5L.
In a second aspect, the present application provides a continuous coagulation sedimentation device, comprising: the entry unit, the rectification unit, thoughtlessly congeal in succession and subside and separator, suspended solid collection unit, play water baffle and play water unit, the fluid flows through thoughtlessly congeals in succession and subsides and the separator after the rectification of rectification unit, and wherein, thoughtlessly congeal in succession and subside and the separator, include: the coagulation sedimentation media extend along the flowing direction of the fluid, the coagulation sedimentation media are arranged in an overlapping mode in the same direction and have preset intervals, the coagulation sedimentation media and the horizontal plane have preset inclination angles, and the fluid comprises suspended matters and a water phase; the coagulation sedimentation medium comprises an upper surface and a lower surface, wherein the lower surface is provided with a plurality of coagulation sedimentation areas distributed along the flow direction of the fluid; the bottom of the upper surface is communicated with the suspended matter collecting unit; the coagulation sedimentation media are set to enable fluid to perform coagulation reaction in each coagulation sedimentation area in sequence in the flowing direction so that small particles form larger particles in the coagulation sedimentation areas, and the larger particles sink to the upper surface of the adjacent coagulation sedimentation media, flow from the top to the bottom of the upper surface and enter the suspended matter collecting unit; and the water phase is discharged through the water outlet unit.
In certain embodiments, the coagulation sedimentation zone is formed by a partition provided at the lower surface, the partition extending along the top to the bottom of the coagulation sedimentation medium.
In certain embodiments, the upper surface is a smooth flat surface.
In some embodiments, the predetermined angle of inclination is an angle between the lower surface and the horizontal plane, and the angle is 60 °.
In certain embodiments, the lower surface of the coagulation sedimentation medium is spaced apart from the upper surface of the adjacent coagulation sedimentation medium by a distance L, the depth of the coagulation sedimentation zone is 2/3L, and the width of the coagulation sedimentation zone is 1.5L.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:
according to the technical scheme provided by the embodiment of the application, the plurality of coagulation sedimentation areas distributed along the flowing direction of the fluid are arranged on the lower surface of the coagulation sedimentation medium, and the plurality of coagulation sedimentation media are overlapped and arranged in the same direction and have preset intervals. And (3) enabling the fluid to perform mixing and condensation reaction in each coagulation and sedimentation area in sequence in the flowing direction, so that the small particles form larger particles in the coagulation and sedimentation area, and the larger particles sink to the upper surface of the adjacent coagulation and sedimentation medium and flow from the top to the bottom. Therefore, fine particles are removed through continuous coagulation sedimentation and separation while the coagulation sedimentation is carried out, so that the efficiency is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a top view of one embodiment of a continuous coagulation sedimentation and separator as provided in the examples herein;
FIG. 2 is a side view of one embodiment of a continuous coagulation sedimentation and separator provided in the examples of the present application;
fig. 3 is a schematic structural diagram of an embodiment of a continuous coagulation sedimentation device provided in an embodiment of the present application.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for the convenience of description of the present application, and have no specific meaning by themselves. Thus, "module", "component" or "unit" may be used mixedly.
Fig. 1 and 2 are a top view and a side view, respectively, of an embodiment of a continuous coagulation sedimentation and separator provided in an example of the present application, and referring to fig. 1 and 2, the continuous coagulation sedimentation and separator 1 of the example of the present application includes: the coagulation sedimentation media are characterized in that the coagulation sedimentation media (10 a, 10b and 10c) extend along the flowing direction 14 of the fluid, the coagulation sedimentation media 10a, 10b and 10c are arranged in a same-direction overlapping mode and have preset intervals, and the coagulation sedimentation media 10a, 10b and 10c have preset inclination angles alpha with the horizontal plane. The coagulation sedimentation media 10a, 10b and 10c each comprise an upper surface 11 and a lower surface 12, wherein the lower surface 12 of the coagulation sedimentation media has a plurality of coagulation sedimentation zones (marked 13a to 13k in the drawing) distributed in the flow direction 14 of the fluid.
In the present embodiment, the coagulation sedimentation media are coagulated such that the fluid undergoes a coagulation reaction in each coagulation sedimentation zone 13a to 13k in series in the flow direction 14 (wherein the fluid forms a vortex 15 in the coagulation sedimentation zone) such that small particles form larger particles in the coagulation sedimentation zones 13a to 13k, which larger particles sink to the upper surface 11 of the adjacent coagulation sedimentation media and flow from the top 111 to the bottom 112 of the upper surface 11. Referring to fig. 1 and 2, the fluid coagulates and settles into larger particles in multiple coagulation and settling zones 13a to 13k of the coagulation and settling medium 10a, and the particles sink to the upper surface 11 of the coagulation and settling medium 10b for removal.
It should be noted that the coagulation sedimentation medium is shown as 10a, 10b and 10c in fig. 1 and 2, the coagulation sedimentation zone is shown as 13a to 13k in fig. 1 and 2, and in a case not specifically described, the coagulation sedimentation medium indicates at least one of 10a, 10b and 10c, and the coagulation sedimentation zone indicates at least one of 13a to 13 k. It should be understood that although specific numbers of coagulation sedimentation media and coagulation sedimentation zones are shown in fig. 1 and 2, this is not a limitation on the number, and in the embodiments of the present application, there may be more or less coagulation sedimentation media and coagulation sedimentation zones, which is not limited by the embodiments of the present application.
In certain embodiments, the fluid is oily wastewater, wherein the oily wastewater comprises crude oil and suspended matter that is oil-bearing. In certain embodiments, the fluid comprises a suspension and an aqueous phase.
In certain embodiments, the coagulation sedimentation media 10a, 10b and 10c are plate-shaped, extending in the direction of flow of the fluid, forming a continuous coagulation sedimentation and separation section from upstream to downstream of the fluid.
In the embodiment of the present application, the depth of the coagulation sedimentation zones 13a to 13k is H, the width is S, and the length is M. The depth H is the length of the lower surface 12 in the vertical direction, the width S is the length of the fluid in the flow direction, and the length M is the length of the coagulation sedimentation zones 13a to 13k in the top-to-bottom direction. In certain embodiments, the top-to-bottom direction of the coagulation sedimentation zones 13a to 13k is perpendicular to the flow direction 14 of the fluid, but is not limited thereto.
In certain embodiments, the coagulation sedimentation zones 13a to 13k are formed separated by baffles 121 disposed on the lower surface 12, the baffles 121 extending along the top 131 towards the bottom 132 of the coagulation sedimentation medium. In certain embodiments, the top 131 and/or bottom 132 of the coagulation sedimentation zones 13a to 13k are open. The coagulation sedimentation zones 13a to 13k are spaces having a rectangular cross section. It should be understood that the embodiments of the present application are not limited thereto, and other shapes of spaces are also possible as long as a space having a certain depth on the lower surface 12 of the coagulation sedimentation medium is conceivable.
In certain embodiments, the upper surface 11 of the coagulating sedimentation medium is a smooth flat surface.
In some embodiments, the predetermined inclination angle is an angle α of the lower surface 12 of the coagulation sedimentation medium to the horizontal plane 16, and the angle α has a magnitude of 60 °.
In certain embodiments, referring to fig. 1 and 2, the lower surface 12 of the coagulation sedimentation medium is spaced apart from the adjacent upper surface 11 of the coagulation sedimentation medium by a distance L, the depth H of the coagulation sedimentation zone is 2/3L, and the width S of the coagulation sedimentation zone is 1.5L.
Fig. 3 is a schematic structural diagram of an implementation of the continuous coagulation sedimentation device according to the embodiment of the present application, and the continuous coagulation sedimentation device according to the embodiment of the present application is described with reference to fig. 3, taking a horizontal pressure coagulation sedimentation device as an example, and with reference to fig. 1 to 3.
Referring to fig. 3, the continuous coagulation sedimentation device 100 of the embodiment of the present application includes a continuous coagulation sedimentation and separator 1 (shown in fig. 1 and 2): the device comprises an inlet unit 2, a rectifying unit 3, a suspended matter collecting unit 4 and a water outlet unit 5, wherein fluid flows through a continuous coagulation sedimentation and separator 1 after being rectified by the rectifying unit 3, suspended matters and water are separated from the separator 1 through continuous coagulation sedimentation, a water phase enters the water outlet unit 5, and the suspended matters enter the suspended matter collecting unit 4. In some embodiments, a water outlet baffle 7 is arranged between the suspension collection unit 4 and the water outlet unit 5.
In certain embodiments, the fluid also includes oil (e.g., crude oil). Referring to fig. 3, the continuous coagulation sedimentation device further includes an oil collecting unit 6. In certain embodiments, as shown with reference to fig. 3, the oil collection unit 6 is disposed at the top of the continuous coagulation sedimentation device 100.
In certain embodiments, referring to fig. 3, the suspended matter collection unit 4 and the water outlet unit 5 are disposed at the bottom of the continuous coagulation sedimentation device 100, and the oil collection unit 6 is disposed at the top of the continuous coagulation sedimentation device 100. The water outlet unit 5 is arranged downstream of the continuous coagulation sedimentation and separation device 1. The water outlet baffle 7 is arranged between the water outlet unit 5 and the suspended matter collecting unit 4.
Referring to fig. 1 to 3, in the continuous coagulation sedimentation and separator 1, the coagulation sedimentation media are arranged to cause a coagulation reaction of the fluid in each coagulation sedimentation zone in succession in the flow direction 14 (wherein the fluid forms a vortex 15 in the coagulation sedimentation zone) so that small particles form larger particles in the coagulation sedimentation zone, which larger particles sink to the upper surface 11 of the adjacent coagulation sedimentation media and flow from the top to the bottom thereof. Referring to fig. 1 and 2, the fluid is mixed and coagulated to form larger particles in a plurality of coagulation and sedimentation areas of the coagulation and sedimentation medium 10a, and the particles sink to the upper surface 11 of the coagulation and sedimentation medium 10b to be removed and enter the suspended matter collection unit 4; and the aqueous phase is discharged through the water outlet unit 5.
It will be appreciated that the continuous coagulation sedimentation and separator 1 is referred to the description hereinbefore and will not be described in detail here.
In some embodiments, the inlet unit 2 is a baffle type inlet or a butterfly type inlet, which is not limited by the embodiments of the present application, and the inlet unit 2 can be referred to in the related art.
In some embodiments, the rectifier unit 3 is configured to stabilize the fluid flow pattern, eliminating or mitigating channeling, short-circuit flow, and eddy current in the flow field. The rectifying unit 3 is a grid type or a perforated plate type, which is not limited in the embodiment of the present application.
In some embodiments, the continuous coagulation sedimentation device 100 or the continuous coagulation sedimentation and separator 1 thereof is made of a non-metal corrosion-resistant material, so as to ensure the service life and provide technical support for the treatment of the produced water of the oil and gas field.
Through this application embodiment, set up a plurality of coagulation sedimentation district along the flow direction distribution of fluid at the lower surface of coagulation sedimentation medium, equidirectional overlapping arrangement has predetermined interval between a plurality of coagulation sedimentation media. And (3) enabling the fluid to perform mixing and condensation reaction in each coagulation and sedimentation area in sequence in the flowing direction, so that the small particles form larger particles in the coagulation and sedimentation area, and the larger particles sink to the upper surface of the adjacent coagulation and sedimentation medium and flow from the top to the bottom. Therefore, fine particles are removed through continuous coagulation sedimentation and separation while the coagulation sedimentation is carried out, so that the efficiency is improved.
The technical scheme of this application embodiment adopts continuous coagulation sedimentation and whole body non-metallic material, solves following problem: 1) the coagulation reaction is positioned at the front end of purification, so that the problem of insufficient reaction exists, and the subsequent purification effect is influenced; 2) the sedimentation area is single, fine particles are difficult to remove, the sedimentation load at the front end and the rear end is unbalanced, and the overall efficiency is low; 3) the steel tank body and the inner structure have poor corrosion resistance and short service life.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A continuous coagulation sedimentation and separation apparatus, comprising:
the coagulation sedimentation media extend along the flowing direction of the fluid, the coagulation sedimentation media are arranged in a same-direction overlapping mode and have preset intervals, the coagulation sedimentation media and the horizontal plane have preset inclination angles, and the fluid comprises suspended matters and a water phase;
wherein the coagulation sedimentation medium comprises an upper surface and a lower surface, wherein the lower surface has a plurality of coagulation sedimentation zones distributed along a flow direction of the fluid;
the coagulation sedimentation media are set to enable fluid to perform coagulation reaction in each coagulation sedimentation area in sequence in the flowing direction, so that small particles form larger particles in the coagulation sedimentation areas, and the larger particles sink to the upper surface of the adjacent coagulation sedimentation media and flow from the top to the bottom.
2. The continuous coagulation sedimentation and separator of claim 1, wherein the coagulation sedimentation zone is partitioned by a baffle provided at the lower surface, the baffle extending from the top to the bottom of the coagulation sedimentation medium.
3. The continuous coagulation sedimentation and separator according to claim 1 or 2, wherein the upper surface is a smooth plane.
4. The continuous coagulation sedimentation and separation device according to claim 1 or 2, wherein the predetermined inclination angle is an angle between the lower surface and a horizontal plane, and the angle has a magnitude of 60 °.
5. The continuous coagulation sedimentation and separator according to claim 1 or 2, wherein the distance between the lower surface of the coagulation sedimentation medium and the upper surface of the adjacent coagulation sedimentation medium is L, the depth of the coagulation sedimentation zone is 2/3L, and the width of the coagulation sedimentation zone is 1.5L.
6. A continuous coagulation sedimentation device, comprising: the continuous coagulation sedimentation and separator comprises an inlet unit, a rectifying unit, a continuous coagulation sedimentation and separator, a suspended matter collecting unit, a water outlet baffle and a water outlet unit, wherein fluid flows through the continuous coagulation sedimentation and separator after being rectified by the rectifying unit, and the continuous coagulation sedimentation and separator comprises:
the coagulation sedimentation media extend along the flowing direction of the fluid, the coagulation sedimentation media are arranged in a same-direction overlapping mode and have preset intervals, the coagulation sedimentation media and the horizontal plane have preset inclination angles, and the fluid comprises suspended matters and a water phase;
wherein the coagulation sedimentation medium comprises an upper surface and a lower surface, wherein the lower surface has a plurality of coagulation sedimentation zones distributed along a flow direction of the fluid; the bottom of the upper surface is communicated with the suspended matter collecting unit;
the coagulation sedimentation media are set to enable fluid to perform coagulation reaction in each coagulation sedimentation area in sequence in the flowing direction so that small particles form larger particles in the coagulation sedimentation areas, and the larger particles sink to the upper surface of the adjacent coagulation sedimentation media and flow from the top to the bottom of the upper surface and enter the suspended matter collecting unit; and the water phase is discharged through the water outlet unit.
7. The continuous coagulation sedimentation device of claim 6, wherein the coagulation sedimentation zone is partitioned by a baffle provided on the lower surface, the baffle extending from the top to the bottom of the coagulation sedimentation medium.
8. The continuous coagulation sedimentation device according to claim 6 or 7, wherein the upper surface is a smooth plane.
9. The continuous coagulation sedimentation device according to claim 6 or 7, wherein the predetermined inclination angle is an angle between the lower surface and a horizontal plane, and the angle has a magnitude of 60 °.
10. The continuous coagulation sedimentation device according to claim 6 or 7, wherein a distance between a lower surface of the coagulation sedimentation medium and an upper surface of an adjacent coagulation sedimentation medium is L, a depth of the coagulation sedimentation zone is 2/3L, and a width of the coagulation sedimentation zone is 1.5L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010549954.3A CN113800612A (en) | 2020-06-16 | 2020-06-16 | Continuous coagulation sedimentation and separator and continuous coagulation sedimentation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010549954.3A CN113800612A (en) | 2020-06-16 | 2020-06-16 | Continuous coagulation sedimentation and separator and continuous coagulation sedimentation device |
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| Publication Number | Publication Date |
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| CN113800612A true CN113800612A (en) | 2021-12-17 |
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| CN202010549954.3A Pending CN113800612A (en) | 2020-06-16 | 2020-06-16 | Continuous coagulation sedimentation and separator and continuous coagulation sedimentation device |
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