CN117531287A

CN117531287A - Overflowing type oil-water separation method

Info

Publication number: CN117531287A
Application number: CN202311274442.0A
Authority: CN
Inventors: 王东平; 杨景
Original assignee: Zhikang Digital Industry Hainan Co ltd; Suzhou Hongben Biological Environmental Protection Technology Co ltd
Current assignee: Zhikang Digital Industry Hainan Co ltd; Suzhou Hongben Biological Environmental Protection Technology Co ltd
Priority date: 2023-09-28
Filing date: 2023-09-28
Publication date: 2024-02-09

Abstract

The embodiment of the application provides an overflow type oil-water separation method, which comprises the following steps: discharging the mixed liquid into a filtrate part for preliminary filtration of particulate matters in the mixed liquid; discharging the preliminarily filtered mixed liquid into a liquid storage part, discharging oil from a first liquid outlet, discharging the treated liquid from a second liquid outlet and discharging precipitated particles from a third liquid outlet; the mixed liquid after preliminary filtration flows along the extending direction of the first plate, so that the particles in the mixed liquid after preliminary filtration are continuously precipitated; the mixed liquid after preliminary filtration flows to the first end part of the flow guide pipe, so that the oil liquid on the upper layer of the mixed liquid after preliminary filtration contacts with the first end part.

Description

Overflowing type oil-water separation method

Technical Field

The specification belongs to the technical field of mixed liquid treatment, and particularly relates to an overflow type oil-water separation method.

Background

In the prior art, mixed liquor is often discharged from waste refuse and is produced after the use of various liquids during factory processing. The mixed liquid needs to be concentrated, and there is a recoverable part, such as oil-water mixture, in which the oil can be separated.

The existing separation method can not sufficiently precipitate particles in the mixed liquid and can not control the content of other liquid in the separated oil, so that the purity of the discharged oil is lower. In addition, the collection of oil can be influenced, and the next processing is performed.

In view of the above problems, no effective solution has been proposed at present.

It should be noted that the foregoing description of the background art is only for the purpose of providing a clear and complete description of the technical solution of the present invention and is presented for the convenience of understanding by those skilled in the art. The above-described solutions are not considered to be known to the person skilled in the art simply because they are set forth in the background of the invention section.

Disclosure of Invention

The present disclosure is directed to an overflow type oil-water separation method, so as to solve the above problems.

The overflow type oil-water separation method provided by the specification comprises the following steps:

discharging the mixed liquid into a filtrate part for preliminary filtration of particulate matters in the mixed liquid;

discharging the preliminarily filtered mixed liquid into a liquid storage part, discharging oil from a first liquid outlet, discharging the treated liquid from a second liquid outlet and discharging precipitated particles from a third liquid outlet;

the mixed liquid after preliminary filtration flows along the extending direction of the first plate, so that particles in the mixed liquid after preliminary filtration are continuously precipitated, and layering of oil is performed;

flowing the preliminarily filtered mixed liquid to a first end part of a flow guide pipe, so that oil liquid on an upper layer of the preliminarily filtered mixed liquid contacts with the first end part;

continuously discharging mixed liquid into the filtrate part and the liquid storage part, so that the oil liquid on the upper layer of the mixed liquid after preliminary filtration overflows into the guide pipe, and overflows from the second end part through a floating ball in the guide pipe;

when the liquid level of the preliminarily filtered mixed liquid in the liquid storage part rises to the point that the treated liquid at the lower layer contacts the first end part, the floating ball rises to the vicinity of the second end part, and the second end part is closed, so that the liquid level of the treated liquid stops rising.

Preferably, a casing is provided, the filtrate portion and the liquid storage portion are both disposed in an inner cavity of the casing, the second liquid outlet and the third liquid outlet are disposed on a wall surface of the inner cavity of the casing, and the first liquid outlet is disposed on the support column and near an end portion of the first plate.

Preferably, a belt Kong Lvwang is provided in the filtrate portion for filtering the mixed liquid.

Preferably, the first plate member is provided on a side wall of the housing and extends toward the opposite side wall while being inclined toward a direction away from the filtrate portion.

Preferably, a second plate is disposed on the first plate, and the first plate is disposed between the filtrate portion and the liquid storage portion, for reducing the flow rate of the primarily filtered mixed liquid.

Preferably, a third plate is installed near the second plate near the first plate, and the connection part of the third plate and the second plate is recessed towards the position where the first plate is located to form a containing groove so as to control the flow rate of the primarily filtered mixed liquid.

Preferably, the third plate member and the first plate member extend in the same direction and are inclined in opposite directions.

Preferably, a support column is installed near the end part, far away from the second plate, of the first plate, the support column penetrates through the third plate, a fourth plate is fixedly installed at the end part, and the first liquid outlet is arranged on the support column and near the end part of the first plate.

Preferably, a fifth plate is fixedly connected to the end side, away from the second plate, of the fourth plate, and one end of the fifth plate extends towards the position where the first plate is located and is bent towards the position where the support column is located.

Preferably, at least one guide pipe is arranged on the fourth plate, the first end of any guide pipe is provided with a first limit rod group, and the second end of any guide pipe is provided with a second limit rod group.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the mixed liquid is firstly discharged into the filtrate part, and granular solids in the mixed liquid are primarily filtered through the filtrate part, so that the influence of the granular solids on the subsequent oil-liquid separation process is avoided.

2. According to the invention, the mixed liquid after preliminary filtration is discharged into the liquid storage part, and the first plate is arranged in the liquid storage part, so that the mixed liquid after preliminary filtration can flow along the first plate, and particles in the mixed liquid after preliminary filtration can be further precipitated and oil in the mixed liquid can be layered.

3. According to the invention, the diversion pipe is arranged, the first end part of the diversion pipe is in contact with the liquid level of the mixed liquid after preliminary filtration, so that oil can overflow from the diversion pipe in the process that the liquid level of the mixed liquid after preliminary filtration is continuously raised, and then the oil can be discharged from the first liquid outlet, and further the separation and collection of the oil are realized.

4. According to the invention, the floating ball is arranged in the guide pipe, so that the oil overflow rate can be controlled by the floating ball, and when the liquid level of the mixed liquid after preliminary filtration continuously rises until the liquid level after treatment contacts with the first end part, the upper-layer oil can enable the floating ball to collide with the inner wall of the second end part, so that the second end part is closed, the oil and the treated liquid cannot be continuously discharged, and further the purity reduction of the discharged oil is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present description or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some of the embodiments described in the present description, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a diagram of a casing structure of an overflow oil-water separation method according to an embodiment of the present disclosure;

FIG. 2 is a diagram showing a structure of a filtrate portion and a liquid storage portion of an overflow type oil-water separation method according to an embodiment of the present disclosure;

fig. 3 is a partially enlarged structure diagram of a position a in fig. 2 of an overflow type oil-water separation method according to an embodiment of the present disclosure.

In the figure: 1. a filtrate portion; 11. a tape Kong Lvwang; 2. a liquid storage part; 21. a first plate member; 22. a second plate member; 23. a third plate member; 24. a fourth plate member; 25. a fifth plate member; 26. a flow guiding pipe; 261. a first end; 262. a second end; 263. a floating ball; 27. a support column; 271. a first liquid discharge port; 3. a housing; 31. a second liquid outlet; 32. and a third liquid outlet.

Detailed Description

In order to make the technical solutions in the present specification better understood by those skilled in the art, the technical solutions in the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is obvious that the described embodiments are only some embodiments of the present specification, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are intended to be within the scope of the present disclosure.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "middle", "lower", "inner", "outer", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or component to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Hereinafter, an embodiment of the present invention will be described in terms of its overall structure.

Referring to fig. 1, an embodiment of the present application provides an overflow type oil-water separation method, including: discharging the mixed liquid into the filtrate part 1 for preliminary filtration of particulate matter in the mixed liquid;

discharging the preliminarily filtered mixed liquid into the liquid storage portion 2, and discharging the oil from the first liquid discharge port 271, the treated liquid from the second liquid discharge port 31, and the precipitated particulate matter from the third liquid discharge port 32;

wherein, the primarily filtered mixed liquid flows along the extending direction of the first plate 21, so as to make the particles in the primarily filtered mixed liquid continuously precipitate;

flowing the preliminarily filtered mixed liquid to the first end 261 of the flow guide pipe 26, so that the oil liquid on the upper layer of the preliminarily filtered mixed liquid contacts with the first end 261;

continuously discharging the mixed liquid into the filtrate part 1 and the liquid storage part 2, so that the oil liquid on the upper layer of the mixed liquid after preliminary filtration overflows into the guide pipe 26, and the oil liquid overflows from the second end 262 through the floating ball 263 in the guide pipe 26;

when the liquid surface of the preliminarily filtered mixed liquid in the liquid storage section 2 rises until the lower treated liquid contacts the first end section 261, the floating ball 263 rises to the vicinity of the second end section 262, and the second end section 262 is closed, so that the liquid surface of the treated liquid stops rising.

When a person skilled in the art handles the mixed liquor, the mixed liquor is first discharged into the filtrate portion 2. The mixed liquid can be primarily filtered through the filtrate part, so that larger particles can be removed. Preferably, a perforated screen 11 is provided in the filtrate portion 1 for filtering the mixed liquid.

After the preliminary filtration by the filtrate portion 1, the mixed liquid is discharged into the liquid storage portion 2. In the liquid storage portion 2, the preliminarily filtered mixed liquid may be separated, and the oil liquid may be discharged from the first liquid discharge port 271, the treated liquid may be discharged from the second liquid discharge port 31, and the precipitated particulate matter may be discharged from the third liquid discharge port 32. Thereby realizing the treatment of the mixed liquid.

Specifically, when the preliminarily filtered mixed liquid is discharged into the liquid storage section 2, the preliminarily filtered mixed liquid flows along the extending direction of the first plate 21. According to fig. 2, the first plate 21 extends from the filtrate portion 1 towards the reservoir portion 2. That is, the preliminarily filtered mixed liquid flows along the extending direction of the aforementioned first plate member 21.

It will be appreciated that particulate matter may be precipitated during the flow of the initially filtered mixed liquor.

When the liquid is continuously discharged into the filtrate portion 1, the liquid level of the preliminarily filtered mixed liquid in the liquid storage portion 2 continues to rise. I.e. the level of the oil continues to rise. When the level of the primarily filtered mixed liquid in the liquid storage portion 2 continues to rise until the level of the oil contacts the first end 261 of the flow guide tube 26, the oil overflows into the flow guide tube 26. As the liquid in the liquid storage portion 2 increases gradually, the oil is discharged from the second end 262, so that the oil can be separated.

As can be appreciated from fig. 3, a float ball 263 is provided inside the draft tube 26. It will be appreciated that the diameter of both the first end 261 and the second end 262 of the draft tube 26 is smaller than the diameter of the floating ball 263. The floating ball 263 can move inside the guide pipe 26, and the first end 261 or the second end 262 cannot slip.

Specifically, when the rate of discharging the liquid into the filtrate portion 1 is large, the liquid level of the mixed liquid after preliminary filtration in the liquid storage portion 2 continues to rise. In one embodiment, when the treated liquid below the oil layer in the preliminarily filtered mixed liquid contacts the first end 261 and overflows continuously towards the inside of the flow guiding pipe 26, the floating ball 263 can be pushed to collide with the inner wall of the second end 262 of the flow guiding pipe 26, so that the second end 262 is closed, and the problem of reduced purity of separated oil caused by too fast liquid inlet rate is avoided.

In a specific arrangement of a person skilled in the art, it is preferable to provide a housing 3, and the filtrate portion 1 and the liquid storage portion 2 are both provided in an inner cavity of the housing 3, and the second liquid drain port 31 and the third liquid drain port 32 are provided on a wall surface of the inner cavity of the housing. As can be seen from fig. 2, the housing 3 may be provided in order to prevent splashing of the liquid during the treatment of the mixed liquid. The filtrate portion 1 and the liquid storage portion 2 are shielded and protected by the housing 3. Meanwhile, the second liquid discharge port 31 and the third liquid discharge port 32 may be provided on the inner wall of the housing 3. The liquid after treatment is convenient to discharge and the sediment is convenient to recycle.

From fig. 2, it is known that a person skilled in the art may also provide a liquid inlet in the housing 1. The liquid inlet is communicated with the filtrate part. And the liquid inlet is communicated with a device for containing mixed liquid. Thereby facilitating the transfer of the mixed liquid.

In the above embodiment, the first plate 21 is provided in the liquid reservoir 2, and the mixed liquid after preliminary filtration can be subjected to precipitation of particulate matter by the first plate 21. Preferably, the first plate 21 is provided on a side wall of the housing 3 and extends toward the opposite side wall while being inclined toward a direction away from the filtrate portion 1. That is, in the present embodiment, the first plate member 21 extends while being inclined in a direction away from the filtrate portion 1.

It will be appreciated that when the structure as in fig. 2 is mounted on a generally horizontal surface, the side wall adjacent to the first plate 21 is the bottom side and the side wall remote from the first plate 21 is the top side. That is, in the present embodiment, the first plate 21 is inclined toward the bottom side. The treated liquid may gradually precipitate the particles under the action of gravity as it flows along the first plate 21. And since the first plate 21 is inclined toward the bottom side, the flow rate of the treated liquid is maintained to be stable.

Further, in the arrangement of the distribution of the filtrate portion 1 and the liquid storage portion 2, it is preferable that the second plate member 22 is provided on the first plate member 21, and the first plate member 21 is provided between the filtrate portion 1 and the liquid storage portion 2 for reducing the flow rate of the mixed liquid after the preliminary filtration. According to fig. 2, the second plate 22 is provided between the filtrate portion 1 and the liquid storage portion 2, so that not only the liquid storage portion 2 and the filtrate portion 1 can be divided, but also the flow rate of the mixed liquid after the preliminary treatment can be controlled.

Specifically, after the mixed liquid is discharged into the filtrate portion 1 and subjected to preliminary filtration, the liquid surface of the preliminarily filtered mixed liquid gradually accumulates in the filtrate portion 1, and the liquid surface in the filtrate portion 1 gradually rises. When the liquid level in the liquid reservoir 1 is higher than the end side of the second plate 22 remote from the first plate 21, flow into the liquid reservoir 2 can continue. In the foregoing process, the mixed liquid after preliminary filtration is blocked by the second baffle 22 to thereby reduce the flow rate. The method is further beneficial to layering of the oil in the mixed liquid after preliminary filtration.

Preferably, a third plate 23 is installed near the second plate 22 near the first plate 21, and the connection between the third plate 23 and the second plate 22 is concave toward the position where the first plate is located to form a container, so as to control the flow rate of the mixed liquid after the preliminary filtration. That is, after the primarily filtered mixed liquid flows into the liquid storage part 2, it flows into the vessel. The mixed liquid after preliminary filtration in the vessel overflows and can flow along the extending direction of the third plate 23.

It will be appreciated that the direction of extension of the third plate member 23 is the same as the direction of extension of the first plate member 21. In the above-described process, the third plate member 23 is provided so that the flow rate of the mixture liquid after the preliminary filtration can be further controlled.

More preferably, the third plate member 23 extends in the same direction as the first plate member 21 and is inclined in the opposite direction. In the above-described embodiment, the first plate 21 may be disposed obliquely by a person skilled in the art, and in the present embodiment, the third plate 23 is disposed obliquely as well, and the oblique direction is opposite to the oblique direction of the first plate 21.

When the primarily filtered mixed liquid flows along the extending direction of the third plate 23, the inclination direction of the third plate 23 is opposite to that of the first plate 21, that is, the third plate 23 is inclined towards the top side, so that the flow rate of the primarily filtered mixed liquid is controlled again, and the oil liquid is better floated and layered.

In one embodiment, the first drain port 271 is provided for draining oil. Preferably, a support column 27 is installed near the end of the first plate 21 remote from the second plate 22, the support column 27 passes through the third plate 23 and the end is fixedly installed with the fourth plate 24, and the first liquid discharge port 271 is provided on the support column 27 near the end of the first plate 21. That is, the first plate 21 and the fourth plate 24 are disposed at both ends of the support column 27, respectively. The draft tube 26 is provided near the end of the fourth plate 24 away from the filtrate portion 1. The intermediate position of the fourth plate 24 is recessed toward the position where the first plate 21 is located, and a partition plate is further provided on the opposite side wall of the portion where the support column 27 is connected to the fourth plate 24, the partition plate extending toward the top side.

With the above structure, when the oil overflows through the second end 262 of the flow guide pipe 26, the oil can continue to flow toward the concave position of the fourth plate 24. May be blocked by the partition when flowing to the opposite side wall of the portion of the support column 27 connected to the fourth plate 24. While the opposite side wall of the portion connected to the fourth plate member 24 is provided with a flow inlet hole. The oil is discharged into the support column 27 through the inflow hole and then discharged through the first drain port 271.

According to fig. 2, a chamber is formed between the first plate 21 and the bottom side of the housing 3 for storing the separated oil discharged from the first drain 271.

In the arrangement of the fourth plate 24, preferably, a fifth plate 25 is fixedly connected to the end side of the fourth plate 24 away from the second plate 22, and one end of the fifth plate 25 extends toward the position of the first plate 21 and is bent toward the position of the support column 27. By providing the fifth plate 25, the layered liquid will flow onto the fifth plate 25 after passing over the third plate 23. And thus can be shielded by the fifth plate 25, and flow along the bent portion of the fifth plate 25 to between the bent portion of the fifth plate 25 and the first plate 21. And further the treated liquid can be continuously discharged and collected.

It will be appreciated that the second drain 31 is for draining the treated water and the third drain 32 is for draining the sediment. That is, the second liquid discharge port 31 is located at a distance from the first plate 21 greater than the third liquid discharge port 32 is located at a distance from the first plate 21. The third drain port 32 is normally closed, and after a large amount of sediment is accumulated, the third drain port 32 can be opened to drain.

Preferably, at least one flow guiding tube 26 is arranged on the fourth plate 24, the first end 261 of any flow guiding tube 26 is provided with a first limit rod group, and the second end 262 of any flow guiding tube 26 is provided with a second limit rod group. The first and second stop rod sets can further prevent the floating ball 263 from slipping in the guide tube 26.

Although various specific embodiments are described in this application, the application is not limited to the details of the industry standard or examples, which are intended to indicate that the same, equivalent or similar embodiments or variations as described in the above examples may be achieved by the use of custom or modified embodiments. Examples of ways of data acquisition, processing, output, judgment, etc. using these modifications or variations are still within the scope of alternative embodiments of the present application.

Although the present application has been described by way of example, one of ordinary skill in the art will recognize that there are many variations and modifications to the present application without departing from the spirit of the present application, and it is intended that the appended embodiments include such variations and modifications without departing from the application.

Claims

1. An overflow type oil-water separation method is characterized by comprising the following steps:

2. The overflow type oil-water separation method according to claim 1, wherein a housing is preferably provided, the filtrate portion and the liquid storage portion are both disposed in an inner cavity of the housing, and the second liquid drain port and the third liquid drain port are disposed on a wall surface of the inner cavity of the housing.

3. The overflow oil-water separation method according to claim 1, wherein a belt Kong Lvwang is provided in the filtrate portion for filtering the mixed liquid.

4. The overflow oil-water separation method according to claim 1, wherein the first plate member is provided on a side wall of the housing, and extends toward an opposite side wall while being inclined toward a direction away from the filtrate portion.

5. The overflow type oil-water separation method as claimed in claim 4, wherein a second plate is provided on the first plate, and the first plate is provided between the filtrate portion and the liquid storage portion for reducing the flow rate of the primarily filtered mixed liquid.

6. The overflow type oil-water separation method according to claim 5, wherein a third plate is installed near the second plate near the first plate, and the connection part of the third plate and the second plate is recessed toward the position where the first plate is located to form a containing groove so as to control the flow rate of the primarily filtered mixed liquid.

7. The spillover oil-water separation method of claim 6, wherein the third plate member extends in a same direction as the first plate member and is inclined in an opposite direction.

8. The overflow oil-water separation method according to claim 7, wherein a support column is installed near an end portion of the first plate member away from the second plate member, the support column penetrates through the third plate member, a fourth plate member is fixedly installed at the end portion, and the first liquid drain port is arranged on the support column near the end portion of the first plate member.

9. The overflow type oil-water separation method according to claim 8, wherein a fifth plate is fixedly connected to an end side of the fourth plate away from the second plate, and an end portion of the fifth plate extends toward a position where the first plate is located and is bent toward a position where the support column is located.

10. The overflow oil-water separation method as claimed in claim 8, wherein at least one of the guide pipes is provided on the fourth plate, the first end of any one of the guide pipes is provided with a first limit lever set, and the second end of any one of the guide pipes is provided with a second limit lever set.