An oil suction device for oily wastewater ponds in petrochemical plants

Abstract

This utility model discloses an oil suction device for oily wastewater tanks in petrochemical plants, belonging to the field of oil suction technology for oily wastewater tanks. It includes a float plate, with an oil collection seat fixedly connected to the top surface of the float plate. An oil collection trough is provided inside the oil collection seat, and four oil suction pipes are fixedly sleeved on the side of the oil collection seat. In this utility model, the float plate allows the device to float on the surface of the wastewater, allowing the bottom ends of the four oil suction hoods to extend into the oil surface at the top of the wastewater. A pneumatic diaphragm pump generates suction force from the four oil suction hoods, thereby drawing the oil and water from the top of the wastewater into the inner cavity of the oil collection trough. The oil and water are then extracted from the inner cavity of the oil collection trough through the oil outlet pipe and hose, achieving the function of extracting oil and water from the top of the wastewater. The four oil suction hoods are distributed around the float plate, and their special trumpet-shaped design expands the oil intake range, making them highly practical.

Description

Technical Field

[0001] This utility model relates to the field of oil absorption technology for oily wastewater tanks, and more specifically, to an oil absorption device for oily wastewater tanks in petrochemical plants. Background Technology

[0002] With increasing global environmental awareness and increasingly stringent environmental regulations, the requirements for cleaning up oil slicks in various water bodies are becoming more stringent. In the petrochemical production process, large amounts of oil inevitably accumulate in wastewater ponds and initial rainwater ponds. If this oil slick is not cleaned up in a timely manner, it will not only cause serious damage to the aquatic ecosystem, but also increase the difficulty and cost of subsequent wastewater treatment, reduce wastewater treatment efficiency, and even lead to wastewater discharge failing to meet standards. With increasingly stringent environmental requirements and the growing demand for efficient wastewater treatment in industrial production, the development of a high-efficiency and convenient oil suction device is urgently needed.

[0003] Currently, there are various existing technologies for cleaning up floating oil on water surfaces. Adsorption methods utilize adsorbents such as activated carbon and coke to adsorb floating oil, which can effectively remove some of it. However, adsorbents are expensive and pose a risk of secondary pollution, and frequent replacement of adsorbents is required after saturation. Centrifugal separation uses the centrifugal force generated by the high-speed rotation of a centrifuge to separate oil and water, which is suitable for situations with large processing volumes and small oil droplet sizes, but requires large equipment investment, consumes a lot of energy, and is complex to operate. Some existing technologies can achieve floating oil cleaning and a certain oil removal rate in specific scenarios, but overall they suffer from low efficiency, high cost, and poor adaptability. Therefore, we propose an oil suction device for oily wastewater ponds in petrochemical plants. Utility Model Content

[0004] In view of the problems mentioned in the background art above, the purpose of this utility model is to provide an oil suction device for oily wastewater pools in petrochemical plants.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] An oil suction device for an oily wastewater tank in a petrochemical plant includes a float plate. An oil collection seat is fixedly connected to the top surface of the float plate. An oil collection trough is provided inside the oil collection seat. Four oil suction pipes are fixedly sleeved on the side of the oil collection seat. One end of each of the four oil suction pipes extends to the outside of the float plate and is fixedly connected to an oil suction hood. The other end of each of the four oil suction pipes is fixedly sleeved into the inner cavity of the oil collection trough. An adjustable valve is fixedly installed in the middle of each of the four oil suction pipes. An oil outlet pipe is fixedly sleeved on the top of the oil collection seat. The bottom end of the oil outlet pipe extends into the inner cavity of the oil collection trough. A rubber hose is fixedly connected to the top of the oil outlet pipe. A pneumatic diaphragm pump is fixedly connected to the end of the rubber hose. Four driving mechanisms are provided on the top surface of the float plate.

[0007] As a preferred embodiment of this utility model, the driving mechanism includes a mounting box fixedly connected to the top surface of the floating plate, a servo motor fixedly installed in the inner cavity of the mounting box, the output end of the servo motor extending to the outside of the mounting box and fixedly connected to a rotating seat, and multiple paddles fixedly connected to the outer side of the rotating seat.

[0008] In a preferred embodiment of this utility model, a signal receiving controller is provided on the top surface of the floating plate, and the signal receiving controller is electrically connected to the servo motor.

[0009] In a preferred embodiment of this utility model, a power supply box is fixedly connected to the top surface of the floating plate, and a storage battery is provided inside the power supply box. The storage battery is electrically connected to a signal receiving controller and a servo motor respectively.

[0010] In a preferred embodiment of this utility model, the bottom surface of the oil-absorbing cover is lower than the bottom surface of the float plate.

[0011] As a preferred embodiment of this utility model, the inner cavity of the oil-absorbing cover is fixedly fitted with a filter screen.

[0012] The advantages of this utility model are:

[0013] (1) In this utility model, the device floats on the surface of sewage by means of a float plate, so that the bottom ends of the four oil suction hoods extend into the oil surface at the top of the sewage. The four oil suction hoods generate suction by means of a pneumatic diaphragm pump, thereby drawing the oil and water on the top of the sewage into the inner cavity of the oil collection tank by means of the suction of the oil suction hoods. The oil and water in the inner cavity of the oil collection tank are then drawn out by means of an oil outlet pipe and a rubber hose, thus realizing the function of drawing out the oil and water on the top of the sewage. In addition, the four oil suction hoods are distributed around the float plate. The oil suction hoods are designed with a special trumpet-shaped structure, which can expand the oil inlet range and has good practicality.

[0014] (2) In this utility model, by using the mounting box, servo motor, rotating seat and paddle plate together, when the float is placed on the sewage, the servo motor drives the rotating seat and paddle plate to rotate, and the paddle plate moves the device by paddling the water surface, so as to adjust the position of the device on the water surface, which is practical. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the oil collecting seat of this utility model;

[0017] Figure 3 This is a cross-sectional schematic diagram of the drive mechanism of this utility model;

[0018] Figure 4 This is a cross-sectional view of the power supply box of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the filter screen of this utility model.

[0020] Explanation of the labels in the diagram:

[0021] 1. Float; 2. Oil collection base; 3. Oil collection trough; 4. Oil suction pipe; 5. Oil suction hood; 6. Oil outlet pipe; 7. Rubber hose; 8. Pneumatic diaphragm pump; 9. Drive mechanism; 10. Mounting box; 11. Servo motor; 12. Rotating base; 13. Paddle plate; 14. Power supply box; 15. Storage battery; 16. Signal receiver controller; 17. Adjustable valve; 18. Filter screen. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example:

[0026] Please see Figure 1-5An oil suction device for an oily wastewater tank in a petrochemical plant includes a float 1, an oil collection seat 2 fixedly connected to the top surface of the float 1, an oil collection trough 3 inside the oil collection seat 2, four oil suction pipes 4 fixedly sleeved on the side of the oil collection seat 2, one end of each of the four oil suction pipes 4 extending to the outside of the float 1 and fixedly connected to an oil suction cover 5, the other end of each of the four oil suction pipes 4 fixedly sleeved to the inner cavity of the oil collection trough 3, an adjustable valve 17 fixedly installed in the middle of each of the four oil suction pipes 4, an oil outlet pipe 6 fixedly sleeved on the top of the oil collection seat 2, the bottom end of the oil outlet pipe 6 extending to the inner cavity of the oil collection trough 3, a rubber hose 7 fixedly connected to the top of the oil outlet pipe 6, a pneumatic diaphragm pump 8 fixedly connected to the end of the rubber hose 7, and four drive mechanisms 9 provided on the top surface of the float 1.

[0027] In this embodiment, the pneumatic diaphragm pump 8 is installed on the ground on the side of the sewage tank. The float plate 1 is made of lightweight and corrosion-resistant material to ensure stable floating on the water surface. The oil outlet pipe 6 is made of oil-resistant and high-strength material. The rubber hose 7, as a key component connecting the oil outlet pipe 6 and the pneumatic diaphragm pump 8, has the characteristics of oil resistance, wear resistance, and good flexibility. It can adapt to the complex environment of the water tank and the floating and moving requirements of the device, ensuring smooth oil discharge. The entire device has a simple structure and is easy to install, disassemble and maintain. All components work together to achieve efficient oil suction function.

[0028] For details, please refer to Figure 1 and Figure 3 The drive mechanism 9 includes a mounting box 10 fixedly connected to the top surface of the float 1. A servo motor 11 is fixedly installed in the inner cavity of the mounting box 10. The output end of the servo motor 11 extends to the outside of the mounting box 10 and is fixedly connected to a rotating seat 12. Multiple paddles 13 are fixedly connected to the outside of the rotating seat 12.

[0029] In this embodiment, a servo motor 11 drives a rotating base 12 and multiple paddles 13 to rotate, and the rotation of the paddles 13 pushes the sewage, thereby enabling the device to move in the sewage.

[0030] For details, please refer to Figure 1 and Figure 3 A signal receiving controller 16 is provided on the top surface of the floating plate 1, and the signal receiving controller 16 is electrically connected to the servo motor 11.

[0031] In this embodiment, the signal receiving controller 16 is used to receive the control signal from the peripheral remote controller, and the signal receiving controller 16 is used to control the servo motor 11.

[0032] For details, please refer to Figure 1 , Figure 3 and Figure 4A power supply box 14 is fixedly connected to the top surface of the floating plate 1. A storage battery 15 is installed inside the power supply box 14. The storage battery 15 is electrically connected to the signal receiving controller 16 and the servo motor 11 respectively.

[0033] In this embodiment, the battery 15 is used to power the signal receiving controller 16 and the servo motor 11.

[0034] For details, please refer to Figure 1 and Figure 2 The bottom surface of the oil-absorbing cover 5 is lower than the bottom surface of the float 1.

[0035] In this embodiment, when the float plate 1 floats on the water surface, the bottom end of the oil suction hood 5 can be inserted into the oil surface on the top surface of the float plate 1 so as to suck up the oil and water.

[0036] For details, please refer to Figure 1 and Figure 2 The inner cavity of the oil absorption cover 5 is fitted with a filter screen 18.

[0037] In this embodiment, the filter screen 18 can be used to deal with sewage containing impurities, avoid impurities from damaging the device, and ensure stable operation of the device in complex sewage environments.

[0038] Working principle: In use, the float 1 is first placed on the surface of the sewage, causing the bottom of the oil suction hood 5 to insert into the oily water at the top of the sewage. Then, the oil collection seat 2 is connected to the pneumatic diaphragm pump 8 on the ground via the oil outlet pipe 6 and the rubber hose 7. The external remote control sends a control signal to the signal receiving controller 16, which in turn controls four servo motors 11 to drive four sets of paddles 13. The float 1 moves on the sewage, and then the pneumatic diaphragm pump 8 is started to generate suction through the rubber hose 7, oil outlet pipe 6, oil collection tank 3, oil suction pipe 4 and oil suction hood 5. The suction of the oil suction hood 5 is used to draw the oil and water on the top of the sewage into the inner cavity of the oil collection tank 3, and the oil and water in the inner cavity of the oil collection tank 3 are drawn out through the oil outlet pipe 6 and rubber hose 7. Finally, as the oil and water on the top of the sewage decreases, the float 1 and the oil suction hood 5 move down synchronously to ensure that the oil suction hood 5 can smoothly draw out the oil and water until the oil and water on the top of the sewage are completely drawn out.

[0039] In addition, this device can be used in the petrochemical industry: it can be widely used for cleaning floating oil in production wastewater ponds and initial rainwater ponds of various petrochemical plants such as oil refining and chemical synthesis, ensuring that wastewater is discharged in compliance with standards during the production process and protecting the environment.

[0040] Other industrial sectors, such as machining and metal smelting, also face the problem of oily wastewater treatment ponds, where this device can play an important role in improving the efficiency of industrial wastewater treatment.

[0041] Municipal wastewater treatment: When treating domestic sewage or initial rainwater containing floating oil, urban wastewater treatment plants can use this oil suction device as a pretreatment step to effectively remove floating oil and improve the overall wastewater treatment quality.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. An oil skimming device for an oil-containing wastewater sump of a petrochemical plant, characterized by: The system includes a float (1), an oil collection seat (2) fixedly connected to the top surface of the float (1), an oil collection trough (3) provided inside the oil collection seat (2), four oil suction pipes (4) fixedly sleeved on the side of the oil collection seat (2), one end of each of the four oil suction pipes (4) extending to the outside of the float (1) and fixedly connected to an oil suction cover (5), the other end of each of the four oil suction pipes (4) fixedly sleeved to the inner cavity of the oil collection trough (3), an adjustable valve (17) fixedly installed in the middle of each of the four oil suction pipes (4), an oil outlet pipe (6) fixedly sleeved on the top of the oil collection seat (2), the bottom end of the oil outlet pipe (6) extending to the inner cavity of the oil collection trough (3), a rubber hose (7) fixedly connected to the top of the oil outlet pipe (6), a pneumatic diaphragm pump (8) fixedly connected to the end of the rubber hose (7), and four drive mechanisms (9) provided on the top surface of the float (1).

2. The oil skimming device for oil-containing wastewater tank of a petrochemical plant according to claim 1, characterized in that: The drive mechanism (9) includes a mounting box (10) fixedly connected to the top surface of the float (1). A servo motor (11) is fixedly installed in the inner cavity of the mounting box (10). The output end of the servo motor (11) extends to the outside of the mounting box (10) and is fixedly connected to a rotating seat (12). Multiple paddles (13) are fixedly connected to the outside of the rotating seat (12).

3. The oil skimming device for oil-containing wastewater tank of a petrochemical plant according to claim 2, characterized in that: The top surface of the floating plate (1) is provided with a signal receiving controller (16), which is electrically connected to the servo motor (11).

4. The oil suction device for an oily wastewater tank in a petrochemical plant according to claim 3, characterized in that: A power supply box (14) is fixedly connected to the top surface of the floating plate (1). A storage battery (15) is installed inside the power supply box (14). The storage battery (15) is electrically connected to the signal receiving controller (16) and the servo motor (11).

5. The oil skimming device for oil-containing wastewater tank of a petrochemical plant according to claim 1, characterized in that: The bottom surface of the oil-absorbing hood (5) is lower than the bottom surface of the float (1).

6. The oil skimming device for oil-containing wastewater tank of a petrochemical plant according to claim 1, characterized in that: The inner cavity of each oil-absorbing cover (5) is fixedly fitted with a filter screen (18).

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