Oil removal and skimming device for sewage treatment plant

Abstract

The utility model discloses a deoiling and skimming device for a sewage treatment plant, which comprises a water treatment tank, a drain pipe is mounted at the bottom of one side of the water treatment tank, a valve is mounted on the drain pipe, and a skimming mechanism is arranged on the water treatment tank and can be used for automatically skimming sewage treatment; an oil removal mechanism is arranged in the water treatment tank and can remove oil during sewage treatment, and the water treatment device relates to the technical field of sewage treatment: a deslagging mechanism is arranged at the rear end of the water treatment tank, and a rotating rod and a connecting plate automatically support a filter screen to overturn and dump waste residues, so that after the waste residues are filtered, the waste residues can be conveniently and automatically discharged and cleaned; the oil absorption cotton is supported by the supporting seat to move, oil stains on sewage are sucked for oil removal, and the oil absorption cotton is not completely laid in the water treatment tank, so that falling of the sewage into the water treatment tank is not affected, oil removal of the sewage is facilitated, and the oil absorption cotton is convenient to replace.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment, specifically to an oil removal and slag skimming device for wastewater treatment plants. Background Technology

[0002] Wastewater treatment plants are places where wastewater discharged from pollution sources, due to high total pollutant content or concentration, fails to meet discharge standards or environmental capacity requirements, thereby reducing water quality and functional objectives. Artificial enhanced treatment is necessary in these plants. A patent application (CN213327020U) discloses an oil removal and skimming device for wastewater treatment plants. This device uses a filter screen to collect and filter waste residue from wastewater. The filter screen is lifted by a reel, and the hook is removed from the hanging ring to disassemble it. Oil-absorbing cotton is used to quickly absorb oil from the wastewater. While the device filters waste residue from wastewater, disassembling the filter screen for waste residue discharge is cumbersome. Furthermore, because the oil-absorbing cotton does not absorb water, it is laid flat in the water tank, making it difficult for wastewater to fall.

[0003] Therefore, it is necessary to propose an oil removal and slag skimming device for wastewater treatment plants. Utility Model Content

[0004] The purpose of this invention is to provide an oil removal and slag skimming device for wastewater treatment plants to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An oil removal and slag skimming device for a wastewater treatment plant includes a water treatment tank, a drain pipe installed at the bottom of one side of the water treatment tank, a valve installed on the drain pipe, a slag discharge mechanism installed on the water treatment tank, the slag discharge mechanism being able to automatically skim slag for wastewater treatment; and an oil removal mechanism installed inside the water treatment tank, the oil removal mechanism being able to remove oil during wastewater treatment.

[0007] Preferably, the slag discharge mechanism includes a support frame and a filter screen, the filter screen is installed inside the support frame, and the support frame is placed on top of the water treatment tank.

[0008] Preferably, a support plate is fixedly installed on the back of the water treatment tank, a rotating rod is rotatably installed on the inner side of the support plate, an L-shaped connecting plate is fixedly installed on the outer wall of the rotating rod, the other end of the connecting plate is connected to the side wall of the support frame by bolts, a first motor is also installed on the support plate, and the output end of the first motor is connected to the rotating rod.

[0009] Preferably, support frames are installed at both ends of the back of the water treatment tank, and hydraulic cylinders are installed on the support frames. The output end of the hydraulic cylinder is connected to a push plate, and the top of the push plate is provided with an inclined surface.

[0010] Preferably, a slag collection box is placed at the back of the water treatment tank, and the rear end of the slag collection box is hinged to a door.

[0011] Preferably, the oil removal mechanism includes a first guide plate, a second guide plate, and a screw. The first guide plate and the second guide plate are respectively fixedly installed on the inner wall of the water treatment tank, and the screw is rotatably installed on the inner wall of the water treatment tank.

[0012] Preferably, a support seat is threaded onto the screw, and the two ends of the support seat are slidably disposed within the first guide plate and the second guide plate, respectively. A second motor is installed at one end of the water treatment tank, and the output end of the second motor is connected to the screw.

[0013] Preferably, a support frame is installed at the bottom of the support base, and oil-absorbing cotton is filled inside the support base and the support frame.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Beneficial effects

[0015] 1. By setting a slag discharge mechanism at the rear end of the water treatment tank, the rotating rod and connecting plate automatically support the filter screen to flip and dump the waste residue, which is then collected by the slag collection box, making it easy to automatically discharge and clean the waste residue after filtration.

[0016] 2. By installing a sliding oil removal mechanism inside the water treatment tank, the oil-absorbing cotton is supported by a support base to move and suck up the oil stains on the sewage. The oil-absorbing cotton is not completely flat inside the water treatment tank, so it not only does not affect the sewage falling into the water treatment tank, but also facilitates the removal of oil from the sewage and makes it easy to replace the oil-absorbing cotton. Attached Figure Description

[0017] Figure 1 A schematic diagram of an oil removal and skimming device for a wastewater treatment plant. Figure 1 ;

[0018] Figure 2 A schematic diagram of an oil removal and skimming device for a wastewater treatment plant. Figure 2 ;

[0019] Figure 3 A schematic diagram of an oil removal and skimming device for a wastewater treatment plant. Figure 3 ;

[0020] Figure 4 This is a schematic diagram of the installation of a support grid in an oil removal and skimming device used in a wastewater treatment plant.

[0021] In the diagram: 1. Water treatment tank; 11. Drain pipe; 12. Valve; 2. Slag discharge mechanism; 21. Support plate; 22. Rotating rod; 23. Connecting plate; 24. Support frame; 25. Hydraulic cylinder; 26. Push plate; 27. Slag collection box; 271. Box door; 28. Support frame; 281. Filter screen; 29. ​​First motor; 3. Oil removal mechanism; 31. First guide plate; 32. Second guide plate; 33. Screw; 34. Support seat; 35. Support mesh frame; 36. Oil-absorbing cotton; 37. Second motor. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] like Figures 1-4 ;

[0024] An oil removal and sludge skimming device for a wastewater treatment plant includes a water treatment tank 1, which is used to remove oil and sludge from wastewater. A drain pipe 11 is installed on the bottom side of the water treatment tank 1 for discharging wastewater from the tank. A valve 12 is installed on the drain pipe 11 to control its opening and closing. A sludge discharge mechanism 2 is provided on the water treatment tank 1 for automatically skimming sludge from the wastewater. An oil removal mechanism 3 is provided inside the water treatment tank 1 for removing oil during wastewater treatment.

[0025] Furthermore, the slag discharge mechanism 2 includes a support frame 28 and a filter screen 281. The filter screen 281 is installed inside the support frame 28, which supports the filter screen 281. The filter screen 281 filters waste residue and debris from the incoming sewage. The support frame 28 is placed on top of the water treatment tank 1. A support plate 21 is fixedly installed on the back of the water treatment tank 1. The support plate 21 supports the rotating rod 22 and the first motor 29. The rotating rod 22 is rotatably installed inside the support plate 21. An L-shaped connecting plate 23 is fixedly installed on the outer wall of the rotating rod 22. After the rotating rod 22 and the connecting plate 23 rotate, they cause the support frame 28 and the filter screen 281 to flip over, so that the support frame 28 and the filter screen 281 flip over to the top of the slag collection box 27. The other end of the connecting plate 23 is connected to the side wall of the support frame 28 by bolts. The first motor 29 is also installed on the support plate 21. The motor 29 is used to drive the rotating rod 22 to rotate. The output end of the first motor 29 is connected to the rotating rod 22. Support frames 24 are installed at both ends of the back of the water treatment tank 1. The support frames 24 are used to support the installation of the hydraulic cylinder 25. The hydraulic cylinder 25 is installed on the support frame 24. The hydraulic cylinder 25 is used to drive the push plate 26 to move back and forth. The output end of the hydraulic cylinder 25 is connected to the push plate 26. The push plate 26 knocks and vibrates back and forth on the bottom of both ends of the support frame 28, so that as much waste residue and debris as possible in the filter screen 281 automatically falls into the slag collection box 27. The top of the push plate 26 is provided with an inclined surface. The slag collection box 27 is placed on the back of the water treatment tank 1. The waste residue and debris fall into the slag collection box 27 for collection. The rear end of the slag collection box 27 is hinged to the box door 271. The bottom two ends of the box door 271 are hinged to the slag collection box 27. The box door 271 can be rotated and opened to facilitate the cleaning out of the waste residue in the slag collection box 27.

[0026] Furthermore, the oil removal mechanism 3 includes a first guide plate 31, a second guide plate 32, and a screw 33. The first guide plate 31 and the second guide plate 32 are respectively fixedly installed on the inner wall of the water treatment tank 1. The first guide plate 31 and the second guide plate 32 are used to guide the movement of the support base 34. The screw 33 is rotatably installed on the inner wall of the water treatment tank 1. The rotation of the screw 33 is used to drive the support base 34 to move. The support base 34 is threaded onto the screw 33. The support base 34 is used to support the movement of the oil-absorbing cotton 36 within the water treatment tank 1. The two ends of the support base 34 are slidably disposed within the first guide plate 31 and the second guide plate 32, respectively. A second motor 37 is installed at one end of the water treatment tank 1, and the output end of the second motor 37 is connected to the screw 33. The second motor 37 is used to drive the screw 33 to rotate. A support mesh frame 35 is installed at the bottom of the support base 34. The support mesh frame 35 not only supports the oil-absorbing cotton 36, but also allows oil stains in the sewage to be easily sucked into the oil-absorbing cotton 36 through the mesh openings on the support mesh frame 35. A level gauge is installed on the inner wall of one end of the water treatment tank 1. Figure 3As shown, the support base 34 and the support mesh frame 35 are filled with oil-absorbing cotton 36. After the sewage enters the water treatment tank 1 and is filtered, the top of the sewage is higher than the bottom of the support mesh frame 35 and lower than the bottom of the support base 34. After the sewage is left to stand for a period of time, the oil stains in the sewage will float on the surface of the sewage. The support base 34 drives the oil-absorbing cotton 36 to move and suck up the oil stains on the sewage to remove the oil. After the support frame 28 and the filter screen 281 are opened, the oil-absorbing cotton 36 can be removed and replaced at any time.

[0027] The working principle of this utility model is as follows: Sewage is injected from the top of the water treatment tank 1. Waste residue and impurities are filtered out of the incoming sewage through the filter screen 281. The filtered sewage enters the water treatment tank 1, with the top of the sewage higher than the bottom of the support frame 35 but lower than the bottom of the support base 34. After the sewage has been left to stand for a period of time, oil stains will float to the surface. The second motor 37 drives the screw 33 to rotate, which in turn moves the support base 34. Both ends of the support base 34 slide within the first guide plate 31 and the second guide plate 32, respectively. The support base 34 supports the movement of the oil-absorbing cotton 36, thus absorbing the oil from the sewage. The oil stains are sucked in and removed. The first motor 29 drives the rotating rod 22 to rotate. After the rotating rod 22 and the connecting plate 23 rotate, they drive the support frame 28 and the filter screen 281 to flip over, so that the support frame 28 and the filter screen 281 flip over to the top of the slag collection box 27. The hydraulic cylinder 25 drives the push plate 26 to move up and down back and forth. The push plate 26 knocks and vibrates the bottom of both ends of the support frame 28 back and forth, so that as much waste residue and debris in the filter screen 281 as possible falls into the slag collection box 27 for collection. The bottom two ends of the box door 271 are hinged to the slag collection box 27. The box door 271 is rotated and opened to facilitate the cleaning out of the waste residue in the slag collection box 27.

[0028] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An oil removal and skimming device for a wastewater treatment plant, comprising a water treatment tank (1), wherein a drain pipe (11) is installed at the bottom of one side of the water treatment tank (1), and a valve (12) is installed on the drain pipe (11), characterized in that: The water treatment tank (1) is equipped with a slag removal mechanism (2), which can automatically skim slag from the sewage. The water treatment tank (1) is equipped with an oil removal mechanism (3), which can remove oil during sewage treatment.

2. The oil removal and skimming device for a wastewater treatment plant according to claim 1, characterized in that: The slag discharge mechanism (2) includes a support frame (28) and a filter screen (281). The filter screen (281) is installed inside the support frame (28), which is placed on top of the water treatment tank (1).

3. The oil removal and skimming device for a wastewater treatment plant according to claim 2, characterized in that: A support plate (21) is fixedly installed on the back of the water treatment tank (1). A rotating rod (22) is rotatably installed on the inner side of the support plate (21). An L-shaped connecting plate (23) is fixedly installed on the outer wall of the rotating rod (22). The other end of the connecting plate (23) is connected to the side wall of the support frame (28) by bolts. A first motor (29) is also installed on the support plate (21). The output end of the first motor (29) is connected to the rotating rod (22).

4. The oil removal and skimming device for a wastewater treatment plant according to claim 3, characterized in that: The water treatment tank (1) has support frames (24) installed at both ends of its back. A hydraulic cylinder (25) is installed on the support frame (24). The output end of the hydraulic cylinder (25) is connected to a push plate (26). The top of the push plate (26) is provided with an inclined surface.

5. The oil removal and skimming device for a wastewater treatment plant according to claim 4, characterized in that: A slag collection box (27) is placed on the back of the water treatment tank (1), and a door (271) is hinged to the rear end of the slag collection box (27).

6. The oil removal and skimming device for a wastewater treatment plant according to claim 1, characterized in that: The oil removal mechanism (3) includes a first guide plate (31), a second guide plate (32) and a screw (33). The first guide plate (31) and the second guide plate (32) are respectively fixedly installed on the inner wall of the water treatment tank (1), and the screw (33) is rotatably installed on the inner wall of the water treatment tank (1).

7. The oil removal and skimming device for a wastewater treatment plant according to claim 6, characterized in that: The screw (33) is threaded with a support seat (34), and the two ends of the support seat (34) are slidably disposed in the first guide plate (31) and the second guide plate (32) respectively. A second motor (37) is installed at one end of the water treatment tank (1), and the output end of the second motor (37) is connected to the screw (33).

8. The oil removal and skimming device for a wastewater treatment plant according to claim 7, characterized in that: The bottom of the support base (34) is equipped with a support mesh frame (35), and the support base (34) and the support mesh frame (35) are filled with oil-absorbing cotton (36).

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