A multi-baffle separator for quench water deoiling

Abstract

This invention belongs to the field of chemical equipment, specifically relating to a multi-baffle separator for quench water oil removal. It includes a settling tank with a boot-shaped structure, comprising an open section and a horizontal section. The horizontal section is connected to an inlet and has at least one conical cavity. A baffle plate is located at the upper part of the conical cavity, and an outlet is located at the bottom of the conical cavity. An overflow plate and an oil outlet are located on the side of the open section away from the horizontal section, and the water outlet is located at the bottom of the open section. This invention, by setting multiple conical cavities and baffle plates in the horizontal section, creates a discontinuous flow channel at the opening of the conical cavity, thereby generating turbulence. The turbulence causes the denser water to flow towards the outside of the conical cavity and settle to the bottom, while the less dense oil phase accumulates and floats at the upper part of the conical cavity, continuing to move forward with the main fluid, achieving initial oil-water separation. Subsequent static settling in the open section further improves the oil-water separation efficiency.

Description

Technical Field

[0001] This invention belongs to the field of chemical equipment, specifically relating to a multi-baffle separator for quench water oil removal. Background Technology

[0002] Quenching water systems are prone to emulsification, oil contamination, and poor oil-water separation during operation, leading to decreased heat exchanger efficiency, increased system resistance, and high additive consumption, while also posing safety hazards. The industry typically treats quenching water using oil-water separation settling tanks and coalescers to meet subsequent process requirements. Specifically, oil-water separation settling tanks separate the oil and water phases by using density differences to make the oil phase float and the water phase sink.

[0003] For example, the paper "Process Water System Selection and Quality Control of Ethylene Plant - Chen Ya-kuan" introduces quench water into an oil-water separation settling tank, allowing the oil and water to gradually separate into phases based on density difference under steady-state conditions. The water then settles in the settling tank, forming an oil-water interface, thus achieving oil-water separation. Patent CN104289010A suppresses emulsification by setting up a slow-flow defoaming zone, a settling separation zone, and a water collection zone, achieving continuous oil-water separation.

[0004] However, the above methods mainly achieve oil-water separation through static settling, which takes a long time and is difficult to meet the requirements of rapid oil-water separation in quench water systems.

[0005] Therefore, there is an urgent need to develop an oil-water separation device for quenching water that is simple in structure and has higher oil-water separation efficiency. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides a multi-baffle separator for quench water oil removal. This invention creates a discontinuous flow channel at the opening of the conical cavity by setting up multiple conical cavities and baffles in the horizontal section, thereby generating turbulence. This turbulence causes the denser water to flow towards the outside of the conical cavity and settle to the bottom, while the less dense oil phase gathers and floats at the top of the conical cavity, continuing to move forward with the main fluid, achieving initial oil-water separation. Subsequent static settling in the open section further improves the oil-water separation efficiency.

[0007] To achieve the above technical objectives, the present invention adopts the following technical solution: This invention provides a multi-baffle separator for oil removal from quench water, comprising: a settling tank, the settling tank having a boot-shaped structure, including: an open section and a horizontal section, the horizontal section being connected to a water inlet, the horizontal section having at least one conical cavity, a baffle plate being provided at the upper part of the conical cavity, a water outlet being provided at the bottom of the conical cavity, an overflow plate and an oil outlet being provided on the side of the open section away from the horizontal section, and a water outlet being provided at the bottom of the open section.

[0008] This invention features a conical cavity at the bottom of the horizontal section, creating turbulence along the sidewalls of the cavity. This throws the denser water phase towards the cavity walls, where it settles under gravity. Meanwhile, the lower-density oil phase rises and gathers towards the center of the cavity, continuing to move forward with the main water flow, thus achieving initial oil-water separation. As the water reaches the open section, the flow rate slows down, and under gravity, the oil phase gathers at the top of the overflow plate and flows through it into the oil collection tank, while the water phase settles at the bottom of the open section, achieving oil-water separation.

[0009] The beneficial effects of this invention are as follows: (1) The present invention sets up multiple conical cavities and multiple baffles in the horizontal section to form a discontinuous flow channel at the opening of the conical cavity, thereby generating turbulence. The turbulence causes the denser water to flow to the outside of the conical cavity and then settle to the bottom of the conical cavity, while the less dense oil phase gathers and floats in the upper part of the conical cavity and continues to move forward with the main fluid, thus achieving the initial separation of oil and water. The subsequent static settling in the open section effectively improves the oil-water separation efficiency.

[0010] (2) The present invention adds a baffle plate to the upper part of the conical cavity to further enhance the disturbance of turbulence. The resulting longitudinal turbulence can better promote the floating and aggregation of the oil phase and improve the oil-water separation effect. At the same time, the baffle plate can also intercept solid impurities and floating objects in the water.

[0011] (3) In this invention, the protrusion of the baffle is an arc-shaped part or a hemispherical part, so that even when the fluid forms longitudinal turbulence, it still maintains a high horizontal fluidity, so as to ensure that the floating oil phase can re-enter the horizontal fluid and continue to flow forward. The above design can also control the flow direction of the longitudinal turbulence, so that the water phase is located below the oil phase under the action of centrifugal force and flows towards the bottom of the conical cavity, thereby matching the turbulence formed on the side wall of the conical cavity and improving the oil-water separation effect. (4) The present invention has a simple structure, is easy to operate, is highly practical, and is easy to promote. Attached Figure Description

[0012] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0013] Figure 1 This is a schematic diagram of the multi-baffle separator for quench water oil removal according to the present invention; Figure 2 Here are schematic diagrams of the baffle structure of the present invention: a. hemispherical, b. fan-shaped; Figure 3 This is an enlarged view of the conical cavity of the present invention; Among them, 1. horizontal section, 2. open section, 3. baffle plate, 4. conical cavity, 5. overflow plate, 6. water outlet, 7. oil outlet, 8. oil collection trough, 9. venturi tube; 3-1. Rod body; 3-2. Protrusion; 4-1. Fan-shaped sidewall; 4-2. Drainage outlet. Detailed Implementation

[0014] It should be noted that the following detailed descriptions are exemplary and intended to provide further illustration of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0015] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0016] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0017] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0018] As described in the background section, traditional oil-water separation settling tanks use static settling, which is time-consuming. Therefore, this invention provides a multi-baffle separator for quench water oil removal, comprising: a settling tank, the settling tank having a boot-shaped structure, including: an open section and a horizontal section, the horizontal section being connected to an inlet, the horizontal section having at least one conical cavity, a baffle plate at the upper part of the conical cavity, an outlet at the bottom of the conical cavity, an overflow plate and an oil outlet on the side of the open section away from the horizontal section, and a water outlet at the bottom of the open section.

[0019] This invention features a conical cavity at the bottom of the horizontal section, creating turbulence along the sidewalls of the cavity. This throws the denser water phase towards the cavity walls, where it settles under gravity. Meanwhile, the lower-density oil phase rises and gathers towards the center of the cavity, continuing to move forward with the main water flow, thus achieving initial oil-water separation. As the water reaches the open section, the flow rate slows down, and under gravity, the oil phase gathers at the top of the overflow plate and flows through it into the oil collection tank, while the water phase settles at the bottom of the open section, achieving oil-water separation.

[0020] To ensure the formation of turbulence, the fluid needs to have a certain initial velocity. Therefore, it is preferable to install a booster pump or venturi tube on the inlet pipe to increase the velocity of the water flow through pressurization or the venturi tube effect, which is conducive to the formation of subsequent turbulence.

[0021] To ensure continuous and stable water flow, the horizontal section of this invention adopts a pipe structure. This application does not impose any special limitations on the specific shape of the pipe, which can be circular, rectangular / square, hexagonal, etc.

[0022] This invention adds a baffle plate to the upper part of the conical cavity to further enhance turbulence. The resulting longitudinal turbulence can better promote the flotation and aggregation of the oil phase, improving the oil-water separation effect. At the same time, the baffle plate can also trap solid impurities and floating matter in the water. Therefore, preferably, the baffle plate is arranged perpendicular to the water flow direction, and the center line of the baffle plate coincides with the center line of the conical cavity, so as to enhance the longitudinal turbulence of the water and improve the oil-water separation efficiency.

[0023] The present invention does not impose any special limitation on the specific shape of the baffle. Preferably, the baffle includes a rod and a protrusion, which are detachably connected. The protrusion of the baffle is an arc-shaped part or a hemispherical part, so that even when the fluid forms longitudinal turbulence, it still maintains a high level of horizontal fluidity, so as to ensure that the floating oil phase can re-enter the horizontal fluid and continue to flow forward. The above design can also control the flow direction of the longitudinal turbulence, so that the water phase is located below the oil phase under the action of centrifugal force and flows towards the bottom of the conical cavity, thereby matching the turbulence formed on the side wall of the conical cavity and improving the oil-water separation effect.

[0024] During installation, mounting holes are made in the horizontal section. The protrusion is first placed in the corresponding position of the mounting hole, and then the rod body and the protrusion are connected from the outside (bolt connection can be used). The diameter of the rod body is slightly larger than the diameter of the mounting hole, so that the rod body and the protrusion are fixed in the horizontal section through the connection.

[0025] The length of the baffle plate affects the horizontal velocity and turbulence distribution of the fluid. If the length is too large, it will affect the horizontal flow of the fluid. If the length is too small, the expected longitudinal turbulence cannot be generated, which will affect the oil-water separation effect. Therefore, this invention studies the length of the baffle plate. Preferably, the length of the baffle plate is 1 / 5 to 1 / 3 of the diameter of the horizontal section to obtain a better oil-water separation effect.

[0026] The diameter of the conical cavity opening and the diameter of the pipe body also affect the formation of turbulence, which in turn affects the oil-water separation effect. Therefore, this invention studies the ratio of the conical cavity opening diameter to the pipe body diameter to improve the oil-water separation effect. Preferably, the ratio of the conical cavity opening diameter to the pipe body diameter is 1:1-1.5, so as to effectively achieve the initial separation of oil and water through the conical cavity.

[0027] This invention does not impose a specific limitation on the number of baffles and conical cavities. Those skilled in the art can adjust the number of baffles and conical cavities as needed to achieve the desired oil-water separation effect. It should be noted that as the number of baffles and conical cavities increases, the water flow velocity gradually decreases, and the oil-water separation effect also gradually decreases. Therefore, in actual working conditions, the number of baffles and conical cavities should be selected according to the viscosity characteristics of the fluid and the desired oil-water separation effect.

[0028] If the openings of the conical cavities are too close together, the flow rate drops rapidly, affecting the separation effect of the subsequent conical cavities. If the openings of the conical cavities are too far apart, the overall length of the equipment increases, leading to higher costs. Therefore, this invention studies the spacing between the conical cavities. Preferably, the spacing between the conical cavities is 4-6 times the diameter of the conical cavity opening. Multiple test results show that a better oil-water separation effect can be achieved within this range.

[0029] After the fluid enters the open section through the conical cavity, it needs to undergo static stratification to achieve oil-water separation. Therefore, it is necessary to maintain a stable water flow velocity. Thus, the open section needs to have sufficient volume to allow the turbulence generated in the conical cavity to gradually stabilize. Therefore, the length of the bottom surface of the open section has been studied. Preferably, the length of the bottom surface of the open section is 10-20 times the diameter of the conical cavity opening to obtain the expected stable flow velocity and improve the oil-water separation effect of the open section.

[0030] In order to better collect the overflowing oil phase, the present invention provides an oil collection trough on one side of the overflow plate to collect the oil phase. Therefore, in some embodiments, the overflow plate and the side wall of the open section away from the horizontal section form an oil collection trough. An oil outlet is provided at the bottom of the oil collection trough. When the oil phase in the oil collection trough reaches a preset height, the oil outlet is opened to discharge the oil phase.

[0031] In the process of treating quench water, problems such as emulsification, temperature and pH abnormalities are also encountered. It is necessary to detect the relevant indicators of quench water in a timely manner and add appropriate reagents to regulate the water quality. Therefore, preferably, the settling tank is also equipped with a feeding port and a detector to add different reagents as needed to meet production and operation requirements.

[0032] Specifically, multiple feed ports and detectors can be set up to meet the dosing requirements of different reagents. Corresponding feed ports and detectors can be set up in each section of the separator to detect and control the quality of the quench water in a timely manner.

[0033] In order to enable the quenched water to settle and stratify better in the open section, the present invention has studied the shape of the open section. Preferably, the cross-section of the open section is quadrilateral or U-shaped to ensure sufficient space for the water to settle and stratify in the open section, while also facilitating construction and installation.

[0034] The present invention will be further described in detail below with reference to specific embodiments. It should be noted that the specific embodiments are explanations of the present invention and not limitations thereof.

[0035] like Figure 1 As shown, this embodiment provides a multi-baffle separator for quench water oil removal, including: a settling tank, the settling tank having a boot-shaped structure, including: an open section 2 and a horizontal section 1, the horizontal section 1 being connected to a water inlet, the horizontal section 1 being provided with at least one conical cavity 4, the upper part of the conical cavity 4 being provided with a baffle 3, the bottom of the conical cavity 4 being provided with a water outlet 6, the open section 2 being provided with an overflow plate 5 and an oil outlet 7 on the side away from the horizontal section 1, and the bottom of the open section 2 being provided with a water outlet 6.

[0036] In this invention, a conical cavity 4 is set at the bottom of the horizontal section 1, which causes the water to form turbulence along the side wall of the conical cavity 4. The denser water phase is thrown towards the side wall of the conical cavity 4 and settles along the cavity under the action of gravity. The oil phase, due to its lower density, gathers towards the center of the cavity during the floating process and continues to move forward with the main water flow, achieving preliminary separation of oil and water. After the water reaches the open section 2, the water flow speed slows down. Under the action of gravity settling, the oil phase gathers at the top of the overflow plate 5 and flows through the overflow plate 5 into the oil collection tank 8, while the water phase is deposited at the bottom of the open section 2, achieving oil-water separation.

[0037] During operation, quench water enters the separator through the inlet, first flowing through horizontal section 1. In horizontal section 1, turbulence is created as it flows through conical cavity 4 and baffle plate 3, achieving initial oil-water separation. It then flows into open section 2, where it settles. The water, due to its higher density, settles at the bottom, while the oil, due to its lower density, gradually rises. When the oil level in the upper layer is higher than the top of overflow plate 5, it flows from overflow plate 5 into oil collection tank 8, achieving oil-water separation. When the oil level in oil collection tank 8 reaches a certain height, oil outlet 7 is opened to discharge the oil phase. Based on the oil-water separation in the open section, water outlet 6 is opened to discharge the water phase. Similarly, based on the oil-water separation in conical cavity 4, drain outlet 4-2 is opened to discharge the water phase, ensuring continuous and stable operation of the equipment.

[0038] To ensure the formation of turbulence, the fluid needs to have a certain initial velocity. Therefore, it is preferable to install a booster pump or venturi tube 9 on the inlet pipe to increase the velocity of the water flow through pressurization or the venturi tube 9 effect, which is conducive to the formation of subsequent turbulence.

[0039] To ensure continuous and stable water flow, the horizontal section 1 of this invention adopts a pipe structure. This application does not impose any special limitations on the specific shape of the pipe, which can be circular, rectangular / square, hexagonal, etc.

[0040] The present invention does not impose any particular limitation on the specific structure of the conical cavity 4. In some embodiments, the conical cavity 4 is surrounded by a fan-shaped sidewall 4-1, and a drain outlet 4-2 is provided at the bottom end of the conical cavity 4, such as... Figure 3 As shown.

[0041] This invention adds a baffle plate 3 to the upper part of the conical cavity 4 to further enhance the turbulence. The resulting longitudinal turbulence can better promote the flotation and aggregation of the oil phase, improving the oil-water separation effect. At the same time, the baffle plate 3 can also trap solid impurities and floating matter in the water. Therefore, preferably, the baffle plate 3 is arranged perpendicular to the water flow direction, and the center line of the baffle plate 3 coincides with the center line of the conical cavity 4, so as to enhance the longitudinal turbulence of the water through the baffle plate 3 and improve the oil-water separation efficiency.

[0042] The specific shape of the baffle 3 is not specifically limited in this invention. Preferably, the baffle 3 includes: a rod 3-1 and a protrusion 3-2, such as... Figure 2 As shown, the rod body 3-1 and the protrusion 3-2 are detachably connected. The protrusion 3-1 of the baffle plate 3 is an arc-shaped part or a hemispherical part, so that even when the fluid forms longitudinal turbulence, it still maintains a high level of horizontal fluidity, so as to ensure that the floating oil phase can re-enter the horizontal fluid and continue to flow forward. The above design can also control the flow direction of the longitudinal turbulence, so that the water phase is located below the oil phase under the action of centrifugal force and flows towards the bottom of the conical cavity, thereby matching the turbulence formed on the side wall of the conical cavity and improving the oil-water separation effect.

[0043] During installation, mounting holes are made on the pipe wall of horizontal section 1. The protrusion 3-2 is first placed in the corresponding position of the mounting hole, and then the rod 3-1 and the protrusion 3-2 are connected from the outside (bolt connection can be used). The diameter of the rod 3-1 is slightly larger than the diameter of the mounting hole, so that the rod 3-1 and the protrusion 3-2 are connected to achieve fixation in the horizontal section.

[0044] The length of the baffle plate 3 affects the horizontal velocity and turbulence distribution of the fluid. If the length is too large, it will affect the horizontal flow of the fluid. If the length is too small, the expected longitudinal turbulence cannot be generated, which will affect the oil-water separation effect. Therefore, the present invention has studied the length of the baffle plate 3. Preferably, the length of the baffle plate 3 is 1 / 2 to 1 / 3 of the diameter of the horizontal section 1 to obtain a better oil-water separation effect.

[0045] The opening diameter of the conical cavity 4 and the diameter of the pipe body also affect the formation of turbulence, which in turn affects the oil-water separation effect. Therefore, this invention studies the ratio of the opening diameter of the conical cavity 4 to the diameter of the pipe body to improve the oil-water separation effect. Preferably, the ratio of the opening diameter of the conical cavity 4 to the diameter of the pipe body is 1:1-1.5, so as to effectively achieve the initial separation of oil and water through the conical cavity 4.

[0046] This invention does not impose a specific limitation on the number of baffles 3 and conical cavities 4. Those skilled in the art can adjust the number of baffles 3 and conical cavities 4 as needed to obtain the desired oil-water separation effect. It should be noted that as the number of baffles 3 and conical cavities 4 increases, the water flow velocity gradually decreases, and the oil-water separation effect also gradually decreases. Therefore, in actual working conditions, the number of baffles 3 and conical cavities 4 should be selected according to the viscosity characteristics of the fluid and the oil-water separation effect.

[0047] If the openings of the conical cavities 4 are too close together, the flow rate will decrease rapidly, affecting the separation effect of the subsequent conical cavities 4. If the openings of the conical cavities 4 are too far apart, the overall length of the equipment will increase, increasing the cost. Therefore, this invention studies the spacing between the conical cavities 4. Preferably, the spacing between the conical cavities 4 is 4-6 times the diameter of the opening of the conical cavities 4. Multiple test results show that a better oil-water separation effect can be achieved within this range.

[0048] After the fluid enters the open section 2 through the conical cavity 4, it needs to undergo static stratification to achieve oil-water separation. Therefore, it is necessary to maintain a stable water flow velocity. Thus, the open section 2 needs to have sufficient volume to allow the turbulence generated in the conical cavity 4 to gradually stabilize. Therefore, the length of the bottom surface of the open section 2 has been studied. Preferably, the length of the bottom surface of the open section 2 is 10-20 times the opening diameter of the conical cavity 4 to obtain the expected stable flow velocity and improve the oil-water separation effect of the open section 2.

[0049] In order to better collect the overflowing oil phase, the present invention provides an oil collection trough 8 on one side of the overflow plate 5 to collect the oil phase. Therefore, in some embodiments, the overflow plate 5 and the side wall of the open section 2 away from the horizontal section 1 form an oil collection trough 8. An oil outlet 7 is provided at the bottom of the oil collection trough 8. When the oil phase in the oil collection trough 8 reaches a preset height, the oil outlet 7 is opened to discharge the oil phase.

[0050] In the process of treating quench water, problems such as emulsification, temperature and pH abnormalities are also encountered. It is necessary to detect the relevant indicators of quench water in a timely manner and add appropriate reagents to regulate the water quality. Therefore, preferably, the settling tank is also equipped with a feeding port and a detector to add different reagents as needed to meet production and operation requirements.

[0051] Specifically, multiple feed ports and detectors can be set up to meet the dosing requirements of different reagents. Corresponding feed ports and detectors can be set up in each section of the separator to detect and control the quality of the quench water in a timely manner.

[0052] In order to enable the quenched water to settle and stratify better in the open section 2, the present invention has studied the shape of the open section 2. Preferably, the cross-section of the open section 2 is quadrilateral or U-shaped to ensure sufficient space for the water to settle and stratify in the open section 2, while facilitating construction and installation.

[0053] While the specific embodiments of the present invention have been described above, they are not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A multi-baffle separator for quenching water oil removal, characterized in that, include: The settling tank has a boot-shaped structure and includes an open section (2) and a horizontal section (1). The horizontal section (1) is connected to the inlet. The horizontal section (1) is provided with at least one conical cavity (4). A baffle plate (3) is provided on the upper part of the conical cavity (4). An outlet (6) is provided on the bottom of the conical cavity (4). An overflow plate (5) and an oil outlet (7) are provided on the side of the open section (2) away from the horizontal section (1). An outlet (6) is provided on the bottom of the open section (2).

2. The multi-baffle separator for quench water oil removal as described in claim 1, characterized in that, A booster pump or venturi tube (9) is installed on the water inlet pipe.

3. The multi-baffle separator for quench water oil removal as described in claim 1, characterized in that, The baffle plate (3) is set perpendicular to the water flow direction, and the center line of the baffle plate (3) coincides with the center line of the conical cavity (4).

4. The multi-baffle separator for quench water oil removal as described in claim 1, characterized in that, The length of the baffle (3) is 1 / 2 to 1 / 3 of the diameter of the horizontal section (1).

5. The multi-baffle separator for quench water oil removal as described in claim 1, characterized in that, The ratio of the opening diameter of the conical cavity (4) to the diameter of the tube body is 1:1-1.

5.

6. The multi-baffle separator for quench water oil removal as described in claim 1, characterized in that, The spacing between the conical cavities (4) is 4-6 times the opening diameter of the conical cavity (4).

7. The multi-baffle separator for quench water oil removal as described in claim 1, characterized in that, The length of the bottom surface of the open section (2) is 10-20 times the opening diameter of the conical cavity (4).

8. The multi-baffle separator for quench water oil removal as described in claim 1, characterized in that, The overflow plate (5) and the side wall of the open section (2) away from the horizontal section (1) form an oil collection trough (8), and an oil outlet (7) is provided at the bottom of the oil collection trough (8).

9. The multi-baffle separator for quench water oil removal as described in claim 1, characterized in that, The settling tank is also equipped with a feeding port and a detector.

10. The multi-baffle separator for quench water oil removal as described in claim 1, characterized in that, The cross-section of the open section (2) is quadrilateral or U-shaped.

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