Oil refining wastewater treatment device

Abstract

The utility model discloses an oil refining wastewater treatment device, which relates to the technical field of wastewater treatment, and comprises an air floatation tank, a bottom plate mechanism is arranged in the air floatation tank, a storage mechanism is arranged on the side surface of the air floatation tank, a moving mechanism is arranged on the rear surface of the air floatation tank, a scraper mechanism is arranged on the moving mechanism, and the scraper mechanism is arranged on the air floatation tank. The bottom plate mechanism is arranged to control the height of the bottom plate, if the liquid level of entering wastewater is lower than the bottom of the opening, the height of the bottom plate can be moved through the bottom plate mechanism, so that the liquid level of the wastewater is increased to be flush with the bottom of the opening, scum can be scraped into the storage box by the scraper, and the device can adapt to wastewater of various volumes; the device is further provided with a storage mechanism, when the scum in a storage box is too much, a pressing plate can descend to press the scum in the storage box, the occupied volume of the scum is reduced, the storage box can contain more scum, and the cleaning frequency of the scum in the storage box is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to an oil refining wastewater treatment device. Background Art

[0002] One of the steps in the treatment of refinery wastewater is flotation treatment, which requires the use of flotation equipment. Flotation equipment is a type of water treatment equipment that introduces or generates a large number of fine bubbles in water, allowing air to attach to suspended particles in the form of highly dispersed tiny bubbles, resulting in a state where the density is less than that of water. The buoyancy principle is used to make the air float on the water surface, thereby achieving solid-liquid separation.

[0003] For example, the patent website discloses a flotation treatment device for treating refinery wastewater (publication number: CN216236136U). This device can only treat a fixed amount of wastewater. The liquid level of the wastewater is aligned with the edge of the flotation tank, and then the scraper can be used to scrape the scum into the scum box. If the wastewater level is lower than the edge of the flotation tank, its edge will hinder the scraper from hanging the scum into the scum box, so the application scope of this device is small. Therefore, those skilled in the art have proposed a refinery wastewater treatment device. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a refinery wastewater treatment device to solve the above-mentioned problems.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a refinery wastewater treatment device, including a flotation tank, a bottom plate mechanism is arranged inside the flotation tank, a storage mechanism is arranged on the side of the flotation tank, a moving mechanism is installed on the rear surface of the flotation tank, a scraper mechanism is arranged on the moving mechanism, the bottom plate mechanism includes two parallel threaded barrels rotatably installed on the lower surface of the flotation tank, a synchronous wheel is installed on the surface of each threaded barrel, a synchronous belt is arranged on the two synchronous wheels, a first gear is installed on the surface of one of the threaded barrels below the synchronous wheel, a first motor is installed on the lower surface of the flotation tank on one side of the first gear, a second gear meshing with the first gear is installed on the driving end of the first motor, a bottom plate adapted to the flotation tank is arranged inside the flotation tank, a first screw adapted to the flotation tank is arranged in each threaded barrel, and the upper end of each first screw extends into the flotation tank and is fixedly connected to the bottom plate.

[0006] As a further technical solution of the utility model, the storage mechanism includes a storage box installed on the side of the flotation tank, the side of the flotation tank is provided with an opening with a bottom at the same height as the upper port of the storage box, an L-shaped plate is installed on the side of the storage box, an electric push rod is installed on the upper surface of the L-shaped plate just above the storage box, the lower end of the electric push rod passes through the L-shaped plate and is installed with a pressure plate adapted to the storage box.

[0007] As a further technical solution of the utility model, the moving mechanism includes a group of rectangular blocks installed on the sides of the flotation tank and the storage box, and a second motor is installed on the side of the rectangular block on the flotation tank. The driving end of the second motor passes through the rectangular block and is equipped with a second screw whose end is rotatably connected to another rectangular block, and a threaded seat is arranged on the second screw.

[0008] As a further technical solution of the utility model, the scraper mechanism includes a strip plate installed on the side of the threaded seat, and a cavity is opened inside the strip plate.

[0009] As a further technical solution of the utility model, a matching limit plate is slidably arranged inside the cavity, a plurality of evenly distributed springs are arranged above the limit plate inside the cavity, and a scraper extending to the outside of the strip plate is installed on the lower surface of the limit plate.

[0010] Beneficial Effects

[0011] The utility model provides a refinery wastewater treatment device. Compared with the prior art, it has the following beneficial effects:

[0012] 1. A refinery wastewater treatment device is provided with a bottom plate mechanism to control the height of the bottom plate. If the incoming wastewater level is lower than the bottom of the opening, the height of the bottom plate can be moved by the bottom plate mechanism to increase the wastewater level to make it flush with the bottom of the opening, so that the scraper can scrape the scum into the storage box, so that the device can adapt to various volumes of wastewater and enhance its practicality.

[0013] 2. A refinery wastewater treatment device, which is also provided with a storage mechanism. When there is too much scum in the storage box, the pressure plate can be lowered to press down the scum in the storage box to reduce the volume occupied by the scum, so that the storage box can accommodate more scum and reduce the number of times the scum in the storage box is cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a refinery wastewater treatment device;

[0015] Figure 2 is a side view of a refinery wastewater treatment device;

[0016] Figure 3 is a cross-sectional view of a refinery wastewater treatment device;

[0017] Figure 4 The present invention is a cross-sectional view of a scraper mechanism of an oil refinery wastewater treatment device.

[0018] In the figure: 1. flotation tank; 2. threaded cylinder; 3. synchronous wheel; 4. synchronous belt; 5. first gear; 6. first motor; 7. second gear; 8. bottom plate; 9. first screw; 10. storage box; 11. L-shaped plate; 12. electric push rod; 13. pressure plate; 14. rectangular block; 15. second motor; 16. second screw; 17. threaded seat; 18. strip plate; 19. cavity; 20. limit plate; 21. spring; 22. scraper. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 The utility model provides a technical solution for a refinery wastewater treatment device: a refinery wastewater treatment device, comprising an air flotation tank 1, a bottom plate mechanism is arranged inside the air flotation tank 1, a storage mechanism is arranged on the side of the air flotation tank 1, a moving mechanism is installed on the rear surface of the air flotation tank 1, a scraper mechanism is arranged on the moving mechanism, the bottom plate mechanism comprises two parallel threaded cylinders 2 rotatably mounted on the lower surface of the air flotation tank 1, a synchronous wheel 3 is installed on the surface of each threaded cylinder 2, a synchronous belt 4 is arranged on the two synchronous wheels 3, a first gear 5 is installed on the surface of one of the threaded cylinders 2 below the synchronous wheel 3, a first motor 6 is installed on the lower surface of the air flotation tank 1 on one side of the first gear 5, and a driving end of the first motor 6 A second gear 7 meshing with the first gear 5 is installed, and a base plate 8 adapted thereto is provided inside the flotation tank 1. A first screw 9 adapted thereto is provided inside each threaded barrel 2, and the upper end of each first screw 9 extends into the flotation tank 1 and is fixedly connected to the base plate 8. When in use, the first motor 6 runs to drive the second gear 7 to rotate, and the rotating second gear 7 drives the corresponding threaded barrel 2 to rotate through the first gear 5. The rotating threaded barrel 2 drives another threaded barrel 2 to rotate in the same direction through the synchronous wheel 3 and the synchronous belt 4, driving the two first screws 9 to rise, and the rising first screw 9 drives the base plate 8 to rise, thereby driving the sewage in the flotation tank 1 to rise until the scum on the liquid surface of the sewage is flush with the bottom of the opening.

[0021] See also Figure 1-4The scraper mechanism includes a strip plate 18 installed on the side of the threaded seat 17, a cavity 19 is opened inside the strip plate 18, a limit plate 20 adapted to the cavity 19 is slidably arranged inside the cavity 19, a plurality of evenly distributed springs 21 are arranged above the limit plate 20 inside the cavity 19, a scraper 22 extending to the outside of the strip plate 18 is installed on the lower surface of the limit plate 20, when in use, the moving scraper 22 pushes the scum on the upper surface of the sewage toward the opening direction, and pushes the scum on the upper surface of the sewage into the storage box 10 through the opening, so as to achieve the purpose of cleaning the scum.

[0022] See also Figure 1-3 The moving mechanism includes a group of rectangular blocks 14 installed on the sides of the flotation tank 1 and the storage box 10. A second motor 15 is installed on the side of the rectangular block 14 on the flotation tank 1. The driving end of the second motor 15 passes through the rectangular block 14 and is installed with a second screw 16 whose end is rotatably connected to another rectangular block 14. A threaded seat 17 is arranged on the second screw 16. When in use, the second motor 15 drives the second screw 16 to rotate, and the rotating second screw 16 drives the threaded seat 17 to move. The moving threaded seat 17 drives the scraper 22 to move through the strip plate 18.

[0023] See also Figure 1-3 The storage mechanism includes a storage box 10 installed on the side of the flotation tank 1. The side of the flotation tank 1 is provided with an opening whose bottom is at the same height as the upper port of the storage box 10. An L-shaped plate 11 is installed on the side of the storage box 10. An electric push rod 12 is installed on the upper surface of the L-shaped plate 11 just above the storage box 10. The lower end of the electric push rod 12 passes through the L-shaped plate 11 and is installed with a pressing plate 13 that is compatible with the storage box 10. When there is too much scum in the storage box 10, the electric push rod 12 extends to drive the pressing plate 13 to descend. The descending pressing plate 13 is used to press down the scum in the storage box 10 to reduce the volume of the scum in the storage box 10. Then the electric push rod 12 is shortened to drive the pressing plate 13 to rise, so that the storage box 10 can accommodate more scum and reduce the number of cleaning times of the scum in the storage box 10.

[0024] The working principle of the utility model is as follows: the sewage after the treatment of refinery wastewater enters the flotation tank 1, and after the reaction, the floccules and bubbles rise to the liquid surface together to form scum, and solid-liquid separation is achieved. Then, the first motor 6 runs to drive the second gear 7 to rotate, and the rotating second gear 7 drives the corresponding threaded barrel 2 to rotate through the first gear 5. The rotating threaded barrel 2 drives another threaded barrel 2 to rotate in the same direction through the synchronous wheel 3 and the synchronous belt 4, driving the two first screws 9 to rise, and the rising first screw 9 drives the bottom plate 8 to rise, thereby driving the sewage in the flotation tank 1 to rise until the scum on the liquid surface of the sewage is flush with the bottom of the opening;

[0025] Then, the second motor 15 drives the second screw 16 to rotate, and the rotating second screw 16 drives the threaded seat 17 to move. The moving threaded seat 17 drives the scraper 22 to move through the strip plate 18, and the moving scraper 22 pushes the scum on the upper surface of the sewage toward the opening direction, and pushes the scum on the upper surface of the sewage into the storage box 10 through the opening, thereby achieving the purpose of cleaning the scum;

[0026] When there is too much scum in the storage box 10, the electric push rod 12 extends to drive the pressure plate 13 to descend, and the descending pressure plate 13 presses down the scum in the storage box 10 to reduce the volume of the scum in the storage box 10. Then the electric push rod 12 shortens to drive the pressure plate 13 to rise, so that the storage box 10 can accommodate more scum and reduce the number of times the scum in the storage box 10 is cleaned.

Claims

1. A refinery wastewater treatment device, characterized in that: The invention comprises an air flotation pool (1), wherein a bottom plate mechanism is arranged inside the air flotation pool (1), a storage mechanism is arranged on the side of the air flotation pool (1), a moving mechanism is installed on the rear surface of the air flotation pool (1), a scraper mechanism is arranged on the moving mechanism, the bottom plate mechanism comprises two parallel threaded cylinders (2) rotatably installed on the lower surface of the air flotation pool (1), a synchronous wheel (3) is installed on the surface of each threaded cylinder (2), a synchronous belt (4) is arranged on the two synchronous wheels (3), and a surface of one of the threaded cylinders (2) is provided with a synchronous belt (4). A first gear (5) is installed below the synchronous wheel (3); a first motor (6) is installed on the lower surface of the flotation tank (1) on one side of the first gear (5); a second gear (7) meshing with the first gear (5) is installed at the driving end of the first motor (6); a base plate (8) matching the base plate (8) is provided inside the flotation tank (1); each of the threaded barrels (2) is provided with a first screw rod (9) matching the base plate (9); the upper end of each of the first screw rods (9) extends into the flotation tank (1) and is fixedly connected to the base plate (8).

2. A refinery wastewater treatment device according to claim 1, characterized in that: The storage mechanism comprises a storage box (10) installed on the side of the flotation tank (1); the side of the flotation tank (1) is provided with an opening whose bottom is at the same height as the upper end of the storage box (10); an L-shaped plate (11) is installed on the side of the storage box (10); an electric push rod (12) is installed on the upper surface of the L-shaped plate (11) just above the storage box (10); the lower end of the electric push rod (12) passes through the L-shaped plate (11) and is provided with a pressure plate (13) adapted to the storage box (10).

3. A refinery wastewater treatment device according to claim 2, characterized in that: The moving mechanism comprises a group of rectangular blocks (14) mounted on the side of the flotation tank (1) and the storage box (10); a second motor (15) is mounted on the side of the rectangular block (14) on the flotation tank (1); a driving end of the second motor (15) passes through the rectangular block (14) and is mounted with a second screw (16) whose end is rotatably connected to another rectangular block (14); a threaded seat (17) is arranged on the second screw (16).

4. A refinery wastewater treatment device according to claim 3, characterized in that: The scraper mechanism comprises a strip plate (18) mounted on the side of a threaded seat (17), and a cavity (19) is provided inside the strip plate (18).

5. A refinery wastewater treatment device according to claim 4, characterized in that: A stop plate (20) adapted to the cavity (19) is slidably disposed inside the cavity (19), a plurality of evenly distributed springs (21) are disposed above the stop plate (20) inside the cavity (19), and a scraper (22) extending to the outside of the strip plate (18) is installed on the lower surface of the stop plate (20).

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