Oil removal device for wastewater treatment device

Abstract

The utility model discloses an oil removal device for a wastewater treatment device, which comprises a treatment box, the top of the treatment box is fixedly connected with a feeding box, the inner surface wall of the feeding box is fixedly connected with a filter screen through a support plate, and a plugging plate and an overturning assembly for driving the plugging plate to overturn are integrated between the bottom end of the filter screen and the feeding box. And a collecting drawer is detachably connected between the lower part of the bottom end of the filter screen and the feeding box. According to the device, wastewater is fed into the feeding box, solid impurities can be screened out by the filter screen, the solid impurities can be transferred to the intersection of the filter screen and the plugging plate along the inclined filter screen, the filtered wastewater is transferred to the treatment box to realize oil-water separation, and when the solid impurities need to be cleaned, an overturning motor drives the plugging plate to deflect, so that the solid impurities are removed; solid impurities at the intersection can slide into the collection drawer, and then the fixed rod is separated and the collection drawer is pulled out, so that the centralized treatment of the impurities can be realized, and the oil removal device for the wastewater treatment device is improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to an oil removal device for wastewater treatment equipment. Background Technology

[0002] Oil removal devices for wastewater treatment are specially designed to remove grease from wastewater. In industrial production and daily life, wastewater often contains various forms of grease, which can cause serious pollution problems if directly discharged into the environment.

[0003] Chinese Patent Publication No. CN217202282U, published on August 16, 2022, discloses an oil removal device for industrial wastewater treatment, comprising a treatment tank, an aeration oil removal mechanism, a wastewater filtration mechanism, a mixing and stirring mechanism, and a foam removal mechanism. The treatment tank is horizontally arranged and has an outlet pipe with a valve. The aeration oil removal mechanism is horizontally arranged at the bottom of the treatment tank. The wastewater filtration mechanism is located at the top of the treatment tank. The mixing and stirring mechanism is horizontally arranged inside the treatment tank and rotatably connected to the treatment tank. The foam removal mechanism is located at the upper end of the treatment tank.

[0004] Existing wastewater treatment devices use oil removal equipment that first filters the wastewater through a filter box, and then separates the oil and water through a spiral rod, aeration pipe, and weir-type oil skimmer in the treatment box. In practice, although a vibration component is provided for the filter plate in the filter box, impurities still concentrate on the top of the filter plate, which is relatively easy to clean. Therefore, there is an urgent need to propose a corresponding oil removal device for wastewater treatment to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an oil removal device for wastewater treatment in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An oil removal device for wastewater treatment includes a treatment tank, a feed box fixedly connected to the top of the treatment tank, a filter screen fixedly connected to the inner wall of the feed box via a support plate, a sealing plate and a flipping assembly for driving the sealing plate to flip are integrated between the bottom end of the filter screen and the feed box, and a collection drawer is detachably connected between the bottom end of the filter screen and the feed box.

[0008] Preferably, a side frame is fixedly connected to the outer wall of the feed box, and the side frame is fixedly connected to the outer wall of the processing box via a locking rod.

[0009] Preferably, the flipping assembly includes a flipping motor fixedly connected to the outer wall of the feed box, the output end of the flipping motor being fixedly connected to the sealing plate via a shaft, and the shaft being rotatably connected to the inner wall of the processing box.

[0010] Preferably, the filter screen is arranged at an angle.

[0011] Preferably, a protrusion is fixedly connected to the top of the collection tray, a fixing rod is screwed into the protrusion, and the fixing rod is fixedly connected to the outer wall of the feed box through a screw hole.

[0012] Preferably, the inner surface of the feed box is provided with a groove that matches the outer surface of the collection drawer.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0014] 1. In this application, wastewater is fed into the feed tank, where solid impurities are screened out by the filter screen and transferred along the inclined filter screen to the junction of the filter screen and the sealing plate. After filtration, the wastewater is transferred to the treatment tank. The aeration pipe delivers air to the wastewater through the air outlet, forming many tiny bubbles. Under the action of the bubbles, a three-phase heterogeneous system of water, air, and oil droplets is formed. Under the action of interfacial tension, bubble buoyancy, and hydrostatic pressure difference, a gas-oil droplet complex is formed and floats to the surface. Finally, oil-water separation is achieved by the weir-type oil skimmer. When solid impurities need to be removed, the tilting motor drives the sealing plate to deflect, and the solid impurities located at the junction slide into the collection tray. Subsequently, the separation fixing rod is used and the collection tray is pulled out to achieve centralized treatment of impurities, thereby improving the oil removal device for wastewater treatment.

[0015] 2. In this application, while the feeding box overlaps the top of the processing box, the two sides of the feeding box are fixed to the processing box through the cooperation of side frames and locking rods. This ensures the stability of the feeding box and the processing box while improving the convenience of disassembling and assembling the feeding box. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;

[0017] Figure 2 A schematic diagram of the side frame structure provided according to an embodiment of the present utility model is shown;

[0018] Figure 3 A schematic diagram of a collection drawer structure according to an embodiment of the present invention is shown;

[0019] Figure 4 A schematic diagram of the sealing plate structure provided according to an embodiment of the present invention is shown.

[0020] Legend:

[0021] 1. Processing box; 2. Feeding box; 3. Side frame; 4. Locking rod; 5. Collection drawer; 6. Protrusion; 7. Fixing rod; 8. Tilting motor; 9. Sealing plate; 10. Filter screen; 11. Card slot; 12. Support plate. Detailed Implementation

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

[0023] Please see Figure 1-4 This utility model provides a technical solution:

[0024] An oil removal device for wastewater treatment includes a treatment box 1, a feed box 2 fixedly connected to the top of the treatment box 1, a filter screen 10 fixedly connected to the inner wall of the feed box 2 via a support plate 12, a sealing plate 9 and a flipping assembly for driving the sealing plate 9 to flip are integrated between the bottom end of the filter screen 10 and the feed box 2, and a collection drawer 5 is detachably connected between the bottom end of the filter screen 10 and the feed box 2.

[0025] Wastewater is fed into the feed tank 2, where solid impurities are screened out by the filter screen 10. The solid impurities are transferred along the inclined filter screen 10 to the junction of the filter screen 10 and the sealing plate 9. After filtration, the wastewater is transferred to the treatment tank 1. The aeration pipe delivers air to the wastewater through the air outlet, forming many tiny bubbles. Under the action of the bubbles, a three-phase heterogeneous system of water, air, and oil droplets is formed. Under the action of interfacial tension, bubble buoyancy, and hydrostatic pressure difference, the gas-oil droplet combination floats to the surface. Finally, the oil and water are separated by the weir-type skimmer. When solid impurities need to be cleaned, the flip motor 8 drives the sealing plate 9 to deflect. The solid impurities located at the junction will slide into the collection tray 5. Afterwards, the separation fixing rod 7 is used and the collection tray 5 is pulled out to achieve centralized treatment of impurities, thereby improving the oil removal device of the wastewater treatment device.

[0026] It should be noted that the treatment box 1, aeration pipe, screw rod and weir-type skimmer are all based on existing technology, and their specific structures and working mechanisms will not be described in detail here.

[0027] Specifically, such as Figure 2 and Figure 4As shown, a side frame 3 is fixedly connected to the outer wall of the feed box 2, and the side frame 3 is fixedly connected to the outer wall of the processing box 1 through a locking rod 4. While the feed box 2 overlaps the top of the processing box 1, the two sides of the feed box 2 are fixed to the processing box 1 through the cooperation of the side frame 3 and the locking rod 4. This ensures the stability of the cooperation between the feed box 2 and the processing box 1, while improving the convenience of disassembling and assembling the feed box 2.

[0028] Specifically, such as Figure 2 and Figure 3 As shown, the flipping assembly includes a flipping motor 8 fixedly connected to the outer wall of the feed box 2. The output end of the flipping motor 8 is fixedly connected to the sealing plate 9 via a shaft, and the shaft is rotatably connected to the inner wall of the processing box 1. The flipping motor 8 drives the sealing plate 9 to deflect, and the solid impurities located at the intersection will slide into the collection tray 5. The filter screen 10 is set at an angle to ensure that the solid impurities slide down automatically. A protrusion 6 is fixedly connected to the top of the collection tray 5. A fixing rod 7 is screwed into the protrusion 6, and the fixing rod 7 is fixedly connected to the outer wall of the feed box 2 via a screw hole, which ensures the convenience of disassembling and assembling the collection tray 5. The fixing rod 7 can be used as a handle to lift the collection tray 5. A slot 11 that fits the outer wall of the collection tray 5 is opened on the inner wall of the feed box 2 to further ensure the stability of the collection tray 5.

[0029] Working principle: Wastewater is fed into the feed tank 2. Solid impurities are screened out by the filter screen 10 and transferred along the inclined filter screen 10 to the junction of the filter screen 10 and the sealing plate 9. After filtration, the wastewater is transferred to the treatment tank 1. The aeration pipe delivers air to the wastewater through the air outlet, forming many tiny bubbles. Under the action of the bubbles, a three-phase heterogeneous system of water, air, and oil droplets is formed. Under the action of interfacial tension, bubble buoyancy, and hydrostatic pressure difference, a gas-oil droplet complex is formed and floats to the surface. Finally, oil-water separation is achieved by the weir-type oil skimmer. When solid impurities need to be cleaned, the flipping motor 8 drives the sealing plate 9 to deflect, and the solid impurities located at the intersection will slide into the collection tray 5. Afterwards, by separating the fixing rod 7 and pulling out the collection tray 5, the impurities can be centrally processed, thereby improving the oil removal device of the wastewater treatment device. While the feed box 2 overlaps on the top of the treatment box 1, the two sides of the feed box 2 are fixed to the treatment box 1 through the cooperation of the side frame 3 and the locking rod 4. This ensures the stability of the feed box 2 and the treatment box 1 while improving the convenience of disassembling and assembling the feed box 2.

[0030] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An oil removal device for wastewater treatment, comprising a treatment tank (1), characterized in that, The top of the processing box (1) is fixedly connected to the feeding box (2). The inner wall of the feeding box (2) is fixedly connected to the filter screen (10) by the support plate (12). The bottom end of the filter screen (10) and the feeding box (2) are integrated with the sealing plate (9) and the flipping assembly that drives the sealing plate (9) to flip. The bottom end of the filter screen (10) and the feeding box (2) are detachably connected to the collection tray (5).

2. The oil removal device for a wastewater treatment apparatus according to claim 1, characterized in that, The outer wall of the feed box (2) is fixedly connected to a side frame (3), and the side frame (3) is fixedly connected to the outer wall of the processing box (1) by a locking rod (4).

3. The oil removal device for a wastewater treatment apparatus according to claim 2, characterized in that, The flipping assembly includes a flipping motor (8) fixedly connected to the outer wall of the feed box (2). The output end of the flipping motor (8) is fixedly connected to the sealing plate (9) via a shaft, and the shaft is rotatably connected to the inner wall of the processing box (1).

4. The oil removal device for a wastewater treatment apparatus according to claim 3, characterized in that, The filter (10) is set at an angle.

5. The oil removal device for a wastewater treatment apparatus according to claim 4, characterized in that, The top of the collection tray (5) is fixedly connected to a protrusion (6), and a fixing rod (7) is screwed into the protrusion (6). The fixing rod (7) is fixedly connected to the outer wall of the feed box (2) through a screw hole.

6. The oil removal device for a wastewater treatment apparatus according to claim 5, characterized in that, The inner surface of the feed box (2) is provided with a slot (11) that matches the outer surface of the collection drawer (5).

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