CN220999340U - Oil-water separation structure for multistage sedimentation tank - Google Patents
Oil-water separation structure for multistage sedimentation tank Download PDFInfo
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- CN220999340U CN220999340U CN202322626883.4U CN202322626883U CN220999340U CN 220999340 U CN220999340 U CN 220999340U CN 202322626883 U CN202322626883 U CN 202322626883U CN 220999340 U CN220999340 U CN 220999340U
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- sedimentation tank
- oil
- communicating pipe
- separation structure
- pipe
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- 238000004062 sedimentation Methods 0.000 title claims abstract description 77
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000000926 separation method Methods 0.000 title claims abstract description 15
- 239000002351 wastewater Substances 0.000 claims abstract description 27
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims description 22
- 239000012528 membrane Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims 1
- 239000002699 waste material Substances 0.000 claims 1
- 239000010865 sewage Substances 0.000 abstract description 19
- 238000010276 construction Methods 0.000 abstract description 10
- 238000007667 floating Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000008394 flocculating agent Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses an oil-water separation structure for a multistage sedimentation tank, and relates to the technical field of sewage treatment. Comprises a first sedimentation tank, a waste water pipe, a communicating pipe, a control valve and a second sedimentation tank; the first sedimentation tank is connected with the waste water pipe and is used for discharging waste water into the first sedimentation tank; the second sedimentation tank is positioned at one side of the first sedimentation tank and is connected with the first sedimentation tank through a communicating pipe, and the control valve is positioned on the communicating pipe in the second sedimentation tank. The utility model has simple structure, good economy and high separation efficiency, and can effectively solve the problem of separating floating oil from sewage in the sewage treatment of the construction site.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to an oil-water separation structure for a multistage sedimentation tank.
Background
In order to protect and improve the environment, control water pollution, protect the good state of ground water such as rivers and groundwater quality, satisfy engineering construction environmental protection, water conservation requirement, solve the sewage discharge problem in the tunnel engineering construction, set up treatment systems such as sewage sedimentation tank at the tunnel portal and concentrate to collect and handle the emission to construction sewage generally. Because construction sewage often contains a small amount of floating oil, the floating oil is mixed with the construction sewage and discharged, and is difficult to treat.
The existing method for treating the greasy dirt in the construction oily wastewater mostly adopts a chemical method to scatter a flocculating agent to cause the greasy dirt to flocculate and precipitate, and then carries out filtering treatment on flocculate, and the prior art patent (publication number: CN 216737834U) discloses an industrial sewage deoiling and decontaminating and purifying device, wherein the industrial sewage generated by die casting is conveyed to a stirring precipitation and purifying tank through an inlet pipe, then the flocculating agent is added into the wastewater through a dosing device, and then the stirring effect of the stirring device is carried out, the industrial sewage subjected to stirring precipitation enters a primary filtering and precipitating tank through overflow, the greasy dirt automatically floats, a large amount of greasy dirt is separated and discharged through a belt type deoiling device, the residual industrial sewage continuously flows into the secondary filtering and precipitating tank through overflow, and the greasy dirt on the surface is continuously separated and discharged through a tubular deoiling device; the method has good oil-water separation effect, but has the defects of larger dosage of flocculant and poor economy when treating a small amount of floating oil.
Therefore, how to provide an oil-water separation structure for a multistage sedimentation tank is a problem to be solved by those skilled in the art.
Disclosure of utility model
In view of this, the present utility model provides an oil-water separation structure for a multistage sedimentation tank, which does not require a flocculant when wastewater has only a small amount of floating oil and can separate oil from water in construction wastewater.
In order to solve the technical problems, the utility model adopts the following technical scheme:
An oil-water separation structure for a multistage sedimentation tank comprises a first sedimentation tank, a waste water pipe, a communicating pipe, a control valve and a second sedimentation tank; the first sedimentation tank is connected with the wastewater pipe and is used for discharging wastewater into the first sedimentation tank; the second sedimentation tank is positioned at one side of the first sedimentation tank and is connected with the first sedimentation tank through a communicating pipe, and the control valve is positioned on the communicating pipe in the second sedimentation tank.
Furthermore, waterproof coatings are coated inside the first sedimentation tank and the second sedimentation tank.
Further, the communicating pipe is arranged at the 2/3 height of the partition walls of the first sedimentation tank and the second sedimentation tank; the oil slick layer above the water surface is kept above the communicating pipe.
Further, the device also comprises a filtering device, wherein the filtering device is arranged at one end of a part of communicating pipe in the first sedimentation tank.
Further, the filtering device comprises a filtering box body, one side of the filtering box body is opened, and a plurality of layers of filter screens and semi-permeable membranes are sequentially arranged from one side of the opening to the other side of the opening.
The utility model has the beneficial effects that:
The utility model has simple structure, good economy and high separation efficiency, does not need flocculating agent when the wastewater has a small amount of floating oil, can separate oil from water of construction wastewater, and can effectively solve the problem of separating the floating oil from the wastewater in the wastewater treatment of the construction site.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a front view of the present utility model;
FIG. 3 is a schematic view of a filter device according to the present utility model;
FIG. 4 is a schematic diagram of a semipermeable membrane in a filtration device of the present utility model.
Wherein, in the figure:
1-a first sedimentation tank; 2-a wastewater inlet pipe; 3-communicating pipe; 4-a control valve; 5-a second sedimentation tank; 6-floating oil layer; 9-a filtration device; 91-a filter box; 92-a multi-layer filter screen; 93-semipermeable membrane; 10-oil molecules; 11-water molecules.
Detailed Description
In order to achieve the above objects and effects, the present utility model adopts the technical means and structure, and the features and functions of the preferred embodiments of the present utility model will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, the utility model provides an oil-water separation structure for a multistage sedimentation tank, which comprises a first sedimentation tank 1, a wastewater inlet pipe 2, a communicating pipe 3, a control valve 4 and a second sedimentation tank 5, wherein the first sedimentation tank 1 is connected with a wastewater pipe 2 and is used for discharging wastewater into the first sedimentation tank 1; the second sedimentation tank 5 is located at one side of the first sedimentation tank 1 and is connected with the first sedimentation tank 1 through the communicating pipe 3, the control valve 4 is located on the communicating pipe 3 in the second sedimentation tank 5, the communicating pipe 3 is arranged at the position of about 2/3 of the partition wall of the first sedimentation tank 1 and the second sedimentation tank 5, the effect that the atmospheric pressure is pumped away from sewage is achieved by guaranteeing that the first sedimentation tank 1 has sufficient liquid level, the control valve 4 is located on the part of the communicating pipe 3 in the second sedimentation tank 5 and is used for adjusting the sedimentation separation time of the wastewater, and when the liquid level of the first sedimentation tank 1 is consistent with the height of the pipe orifice of the communicating pipe 3 close to the side of the second sedimentation tank 5, the sewage pumping away can be stopped, so that the height of the floating oil layer 6 in the first sedimentation tank should exceed the height of the communicating pipe 3. The wastewater inlet pipe 2 is arranged on the other side of the first sedimentation tank 1 and above the liquid level of the first sedimentation tank 1, so as to prevent the backflow of wastewater.
In this embodiment, the first sedimentation tank 1 and the second sedimentation tank 5 are poured by concrete, and waterproof coatings are coated in the first sedimentation tank 1 and the second sedimentation tank 5, so that sewage is prevented from leaking.
Referring to fig. 3 and 4, the present utility model further includes a filtering device 9, and the filtering device 9 is disposed at one end of the portion of the communication pipe 3 in the first sedimentation tank 1. The filtering device 9 comprises a filtering box 91, a plurality of layers of filter screens 92 and semi-permeable membranes 93 are sequentially arranged from one side of the filtering box 91 to the other side of the filtering box 91, the semi-permeable membranes are arranged in the filtering device according to the characteristics of oily wastewater, and can be used for separating solutions under the action of pressure according to the size and shape of molecules, wherein the oil molecules 10 in the wastewater cannot pass through the semi-permeable membranes, and only water molecules 11 can pass through the semi-permeable membranes and are used for preventing oil stains from entering the second sedimentation tank 5 when the wastewater is pumped away.
When the utility model works, firstly, the wastewater inlet pipe 2 is opened, the first sedimentation tank 1 starts to collect industrial wastewater, at the moment, the control valve 4 of the communicating pipe 3 is closed, when the wastewater is collected, the floating oil is separated from sewage by means of the oil-water specific gravity difference in the first sedimentation tank 1, when the liquid level of the sewage is over the communicating pipe 3, the control valve 4 is opened, the sewage is pumped out into the second sedimentation tank 5 for treatment, the greasy dirt layer is left in the first sedimentation tank 1, and the greasy dirt collection in the first sedimentation tank 1 is regularly and uniformly treated.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (3)
1. The oil-water separation structure for the multistage sedimentation tank is characterized by comprising a first sedimentation tank (1), a waste water pipe (2), a communicating pipe (3), a control valve (4) and a second sedimentation tank (5); the first sedimentation tank (1) is connected with the waste pipe (2) and is used for discharging waste water into the first sedimentation tank (1); the second sedimentation tank (5) is positioned at one side of the first sedimentation tank (1) and is connected with the first sedimentation tank (1) through a communicating pipe (3), and the control valve (4) is positioned on the communicating pipe (3) in the second sedimentation tank (5);
The device also comprises a filtering device (9), wherein the filtering device (9) is arranged at one end of a part of communicating pipe (3) in the first sedimentation tank (1);
The filtering device (9) comprises a filtering box body (91), wherein one side of the filtering box body (91) is opened, and a plurality of layers of filter screens (92) and semi-permeable membranes (93) are sequentially arranged from one side of the opening to the other side.
2. An oil-water separation structure for a multistage sedimentation tank according to claim 1, characterized in that the interiors of the first sedimentation tank (1) and the second sedimentation tank (5) are coated with a waterproof coating.
3. The oil-water separation structure for the multistage sedimentation tank according to claim 1, wherein the communicating pipe (3) is arranged at the height of 2/3 of the partition wall of the first sedimentation tank (1) and the second sedimentation tank (5); the oil slick layer above the water surface is kept above the communicating pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322626883.4U CN220999340U (en) | 2023-09-26 | 2023-09-26 | Oil-water separation structure for multistage sedimentation tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322626883.4U CN220999340U (en) | 2023-09-26 | 2023-09-26 | Oil-water separation structure for multistage sedimentation tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220999340U true CN220999340U (en) | 2024-05-24 |
Family
ID=91121120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322626883.4U Active CN220999340U (en) | 2023-09-26 | 2023-09-26 | Oil-water separation structure for multistage sedimentation tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220999340U (en) |
-
2023
- 2023-09-26 CN CN202322626883.4U patent/CN220999340U/en active Active
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