Integrated oily sewage treatment device

Abstract

The utility model relates to the technical field of sewage treatment, in particular to an integrated oily sewage treatment device which comprises a sewage treatment box and a supporting plate, the supporting plate is fixedly connected to one side of the outer wall of the sewage treatment box, a lifting assembly is installed on the left side of the upper end of the sewage treatment box, and a collecting assembly is arranged above a third cavity. Through cooperation of a self-locking air cylinder, a cross beam, a collecting barrel, a conical head, a servo motor, a rotating shaft and a material collecting groove, then the servo motor is controlled to drive the rotating shaft to rotate, the rotating shaft can drive the collecting barrel to rotate, oil liquid in the collecting barrel can be poured out through a pointed end on the upper edge, the oil liquid in the collecting barrel is poured into the material collecting groove, and layered oil and water can be separated by repeating the steps. And the problem that the oil-water separation effect is influenced by re-mixing of oil and water due to violent vibration of a pump body caused by direct extraction of layered oil by adopting a pump body connecting pipeline in the prior art can be effectively avoided by gradually guiding out the oil liquid.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to an integrated oily wastewater treatment device. Background Technology

[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. When treating oily wastewater, the oil in the stratified layers must be extracted to achieve oil-water separation.

[0003] However, existing technology uses a pump body connected to a pipe that is directly inserted into the liquid surface to extract the separated oil. However, the pump body vibrates quite violently, and the pipe connected to it and inserted below the liquid surface will also vibrate, which can easily cause the oil and water to mix due to vibration, affecting the oil-water separation effect. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the current device, which uses a pump body connected to a pipeline to directly extract the separated oil, causes severe pump vibration, which easily leads to remixing of oil and water and affects the oil-water separation effect. Therefore, an integrated oily wastewater treatment device is proposed. To achieve the above objective, this invention...

[0005] The new technology provides the following technical solution:

[0006] An integrated oily wastewater treatment device is designed, including a wastewater treatment tank and a tray. The tray is fixedly connected to one side of the outer wall of the wastewater treatment tank. The right side of the wastewater treatment tank has a first cavity and a second cavity formed in front and back, respectively. The left side of the wastewater treatment tank has a third cavity formed inside. The front side of the first cavity is fixedly connected to an inlet pipe. A lifting component is installed on the upper left side of the wastewater treatment tank. A collection component is set above the third cavity.

[0007] Preferably, the lifting assembly includes a self-locking cylinder, the lower ends of which are fixedly connected to the sewage treatment tank. The output shaft of the self-locking cylinder is fixedly connected to a top plate, and the lower end of the top plate is fixedly connected to a crossbeam via multiple vertical rods. The multiple crossbeams are located at the upper center and front and rear sides of the third cavity.

[0008] Preferably, the bottom of the conical concave portion of the third cavity in the wastewater treatment tank is connected to a discharge pipe, a stirring motor is installed above the inner wall of the first cavity, the output shaft of the stirring motor is fixedly connected to a stirrer, and a drain pipe is fixedly connected to one side of the third cavity in the wastewater treatment tank.

[0009] Preferably, a water pump is installed inside the second cavity, the output end of the water pump inside the second cavity is inserted into the third cavity, and a filter screen is installed at the connection between the first cavity and the second cavity.

[0010] Preferably, the collection component includes a servo motor and a collection trough. Multiple servo motors are respectively fixedly connected to the lower ends of the crossbeam. The output shafts of the servo motors are all fixedly connected to a rotating shaft. Multiple collection buckets are fixedly connected to the outer wall of the rotating shaft. Multiple semi-circular through holes are machined on the outer wall of the collection buckets. A conical head is fixedly connected to the lower end of each collection bucket. The collection trough is located on one side of the crossbeam, and the bottom of the collection trough is fixedly connected to the sewage treatment tank.

[0011] Preferably, aeration pipes are installed on both sides of the inner wall of the third cavity in the sewage treatment tank.

[0012] The integrated oily wastewater treatment device proposed in this utility model has the following advantages:

[0013] Through the coordination of the self-locking cylinder, crossbeam, collecting bucket, cone, servo motor, rotating shaft, and collection trough, the output shaft of the self-locking cylinder can drive the crossbeam and collecting bucket downwards, allowing the collecting bucket to be inserted into the liquid surface inside the third chamber. As the cone at the lower end of the collecting bucket is inserted (the cone can better penetrate the liquid surface without causing large waves), the collecting bucket is continuously immersed in the liquid until the semi-circular through-hole of the collecting bucket is below the oil surface, allowing the oil to automatically flow into the interior of the collecting bucket. Once the interior of the collecting bucket is full (the internal liquid level is level with the bottom edge of the semi-circular through-hole), the self-locking cylinder is controlled to move the collecting bucket upwards. At the extreme position, the servo motor is then controlled to drive the rotating shaft, which in turn drives the collection bucket to rotate. The collection bucket can be poured out through the pointed tip on the upper edge, allowing the oil inside to flow into the collection trough. The inner wall of the collection trough is inclined. In actual use, a collection box can be placed at the corresponding position on the pallet. The inclined surface inside the collection trough can guide the oil into the collection box. By repeating this process, the separated oil and water can be separated. By exporting the oil one by one, the problem of the existing technology of directly drawing the separated oil from the pump body through the pipeline is effectively avoided. This avoids the problem that the pump body vibrates violently and easily causes the oil and water to remix, affecting the oil-water separation effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the front appearance structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the rear appearance structure of this utility model;

[0016] Figure 3 This utility model Figure 2 Schematic diagram of the lifting and collecting components in the middle

[0017] picture; Figure 4 This utility model Figure 3 A diagram of the structure viewed from below;

[0018] Figure 5 This utility model Figure 4 A schematic diagram of the structure at point I in the diagram;

[0019] Figure 6 This utility model Figure 1 A top-down structural diagram.

[0020] In the diagram: 1. Wastewater treatment tank, 2. Pallet, 3. Lifting assembly, 301. Vertical rod, 302. Top plate, 303. Horizontal beam, 304. Self-locking cylinder, 4. Collection assembly, 401. Servo motor, 402. Collection trough, 403. Collection bucket, 404. Cone head, 405. Rotating shaft, 5. Discharge pipe, 6. Water inlet pipe, 7. Third chamber, 8. First chamber, 9. Second chamber, 10. Stirring motor, 11. Aeration pipe, 12. Drainage pipe. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] See attached document Figure 1-6 In this embodiment, an integrated oily wastewater treatment device includes a wastewater treatment tank 1 and a tray 2. The tray 2 is fixedly connected to one side of the outer wall of the wastewater treatment tank 1. The right side of the wastewater treatment tank 1 is divided into two parts, forming a first cavity 8 and a second cavity 9 respectively. The left side of the wastewater treatment tank 1 is formed into a third cavity 7. The front side of the first cavity 8 is fixedly connected to an inlet pipe 6. A lifting component 3 is installed on the upper left side of the wastewater treatment tank 1. A collection component 4 is provided above the third cavity 7. Solenoid valves are machined at the ends of the aeration pipe 11, the inlet pipe 6, the discharge pipe 5, and the drain pipe 12.

[0023] In the wastewater treatment tank 1, the bottom of the conical recessed portion of the third chamber 7 is connected to a discharge pipe 5. A stirring motor 10 is installed on the upper inner wall of the first chamber 8. The model of the stirring motor 10 can be determined according to specific usage requirements. An agitator is fixedly connected to the output shaft of the stirring motor 10. A drain pipe is fixedly connected to one side of the third chamber 7 in the wastewater treatment tank 1. A water pump is installed inside the second chamber 9. The model of the water pump can be determined according to specific usage requirements. The output end of the water pump inside the second chamber 9 is inserted into the third chamber 7. The first chamber 8 and the second chamber 9... A filter screen is installed at the connection point. The filter screen is installed at the connection point of the first chamber 8 and the second chamber 9 by plugging it in. It can be removed when cleaning is required. Aeration pipes 11 are installed on both sides of the inner wall of the third chamber 7 in the sewage treatment tank 1. The aeration pipes 11 can be backwashed periodically to wash away the dirt inside. The water pump in the second chamber 9, the filter screen at the connection point of the first chamber 8 and the second chamber 9, and the agitator at the end of the stirring motor 10 are all mature existing technologies, so they will not be described in detail. When using them, you can select the corresponding parts that meet the usage requirements.

[0024] See attached document Figure 1-6 In this embodiment, the lifting assembly 3 includes a self-locking cylinder 304. The lower ends of multiple self-locking cylinders 304 are fixedly connected to the sewage treatment tank 1. The model of the self-locking cylinder 304 can be determined according to specific requirements. The output shaft end of the self-locking cylinder 304 is fixedly connected to a top plate 302. The lower end of the top plate 302 is fixedly connected to a crossbeam 303 through multiple vertical rods 301. The multiple crossbeams 303 are located at the upper center and front and rear sides of the third cavity 7.

[0025] See attached document Figure 1-6 In this embodiment, the collection component 4 includes a servo motor 401 and a collection trough 402. Multiple servo motors 401 are fixedly connected to the lower ends of the crossbeam 303. The output shafts of the servo motors 401 are all fixedly connected to a rotating shaft 405. The model of the servo motor 401 can be determined according to specific usage requirements. Multiple collection buckets 403 are fixedly connected to the outer wall of the rotating shaft 405. Multiple semi-circular through holes are machined on the outer wall of the collection buckets 403. The semi-circular through holes and the tip for tilting the collection buckets 403 are located on both sides. The tip for tilting the collection buckets 403 is located on one side of the collection trough 402. A cone head 404 is fixedly connected to the lower end of each collection bucket 403. The collection trough 402 is located on one side of the crossbeam 303, and the bottom of the collection trough 402 is fixedly connected to the sewage treatment tank 1.

[0026] Working principle:

[0027] When this integrated oily wastewater treatment device is needed, the user first connects the corresponding external pipes to the aeration pipe 11, inlet pipe 6, discharge pipe 5, and drain pipe 12 via flanges. Each of these pipes has a solenoid valve at its end. After connection, the oily wastewater to be treated is injected into the first chamber 8 through the inlet pipe 6. Then, the stirring motor 10 is started, and treatment reagents (selected according to the type of wastewater) are added through the upper opening of the first chamber 8 for neutralization and pH adjustment. During this process, the stirring motor 10 drives the agitator to rotate, ensuring full contact between the wastewater and the treatment reagents, thus adjusting the pH value. The wastewater is then discharged from the upper opening of the first chamber 8. Figure 2 As can be seen, the inlet pipe 6 is inserted into the bottom of the inner wall of the first chamber 8 and discharged, so that the injected sewage rises continuously from bottom to top. During the process, it comes into full contact with the treatment reagent to adjust the pH value. By the time the sewage rises to the filter screen, the pH adjustment process has already been completed. Then the sewage flows through the filter screen into the interior of the second chamber 9 and is transported to the third chamber 7 by the water pump.

[0028] When the third chamber 7 is filled with enough water for one treatment cycle, the injection of sewage into the third chamber 7 is stopped. Then, high-pressure air is injected into the third chamber 7 through the aeration pipe 11 by an external aeration pump. The oil droplets in the sewage are carried to the surface and separated by tiny bubbles. During the process, a demulsifier needs to be used (which can be added through the opening of the third chamber 7). Pressurized dissolved air flotation is a common process that can remove tiny oil droplets and make the oil float on the water surface for stratification. The sediment at the bottom of the sewage will fall to the conical concave bottom of the third chamber 7 and accumulate, thus achieving stratification. Since the first chamber 8, the second chamber 9 and the third chamber 7 have successively completed the pH adjustment, filtration, aeration and oil-water sedimentation stratification process, an integrated sewage treatment process has been realized.

[0029] After the stratification is completed, the user can activate the self-locking cylinder 304, causing the output shaft of the self-locking cylinder 304 to drive the crossbeam 303 and the collection bucket 403 downwards, allowing the collection bucket 403 to be inserted into the liquid surface inside the third chamber 7. As the lower cone 404 of the collection bucket 403 is inserted (the cone 404 can better penetrate the liquid surface without causing large waves), the collection bucket 403 is continuously immersed in the liquid until the semi-circular through hole of the collection bucket 403 is below the oil surface, allowing the oil to automatically flow into the interior of the collection bucket 403. Once the interior of the collection bucket 403 is full (the internal liquid level is level with the bottom edge of the semi-circular through hole of the collection bucket 403), the self-locking cylinder 304 is controlled to move the collection bucket 403 upwards to its limit position. Then, the servo motor 401 is controlled to drive the rotating shaft 405 to rotate, so that the rotating shaft 405 can drive the collection bucket 403 to rotate. The collection bucket 403 can be poured out through the pointed end of the upper edge, so that the oil inside is poured into the collection tank 402. The inner wall of the collection tank 402 is inclined. In specific use, a collection box can be placed at the corresponding position of the tray 2. The inclined surface inside the collection tank 402 can guide the oil into the collection box. By repeating this process, the oil and water after separation can be separated. By exporting the oil one by one, the problem of the existing technology of directly drawing the separated oil through the pump body and connecting the pipe is effectively avoided. This is because the pump body vibrates more violently and the oil and water are easily mixed, which affects the oil and water separation effect. This process is similar to the traditional manual extraction of sesame oil.

[0030] After the oil-water separation is completed, control the external mud pump to extract the internal sediment through the discharge pipe 5. When water flows out of the discharge pipe 5, it means that the sediment has been completely discharged. At this time, stop the solenoid valve at the discharge pipe 5, remove the external mud pump from the flange at the end of the discharge pipe 5, place the collection box at the discharge pipe 5, and finally open the discharge pipe 5 and the drain pipe 12 to completely discharge the water that has been treated in the third chamber 7. Then repeat the above process to achieve continuous sewage treatment. After a period of use, the bolts connecting the self-locking cylinder 304 and the sewage treatment tank 1 can be removed to disconnect the connection between the lifting component 3 and the collection component 4 and the sewage treatment tank 1. Then clean the oil stains in the multiple chambers and the collection component 4. After cleaning, install them back in their original positions.

[0031] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. An integrated oily wastewater treatment device, comprising a wastewater treatment tank (1) and a tray (2), wherein the tray (2) is fixedly connected to one side of the outer wall of the wastewater treatment tank (1), characterized in that: The sewage treatment tank (1) has a first cavity (8) and a second cavity (9) formed on the front and back sides of its interior right side, respectively. A third cavity (7) is formed on the left side of the sewage treatment tank (1). A water inlet pipe (6) is fixedly connected to the front side of the first cavity (8). A lifting assembly (3) is installed on the upper left side of the sewage treatment tank (1). A collection assembly (4) is provided above the third cavity (7). The collection assembly (4) includes a servo motor (401) and a collection trough (402). Multiple servo motors (401) are respectively fixedly connected to the lower ends of the crossbeam (303). The output shaft of the servo motor (401) is fixedly connected to the rotating shaft (405). Multiple collection buckets (403) are fixedly connected to the outer wall of the rotating shaft (405). Multiple semi-circular through holes are machined on the outer wall of the collection bucket (403). A cone head (404) is fixedly connected to the lower end of the collection bucket (403). The collection trough (402) is located on one side of the crossbeam (303), and the bottom of the collection trough (402) is fixedly connected to the sewage treatment tank (1).

2. The integrated oily wastewater treatment device according to claim 1, characterized in that: The lifting assembly (3) includes a self-locking cylinder (304). The lower ends of the multiple self-locking cylinders (304) are fixedly connected to the sewage treatment tank (1). The output shaft of the self-locking cylinder (304) is fixedly connected to a top plate (302). The lower end of the top plate (302) is fixedly connected to a crossbeam (303) through multiple vertical rods (301). The multiple crossbeams (303) are located at the upper center and front and rear sides of the third cavity (7).

3. The integrated oily wastewater treatment device according to claim 1, characterized in that: The bottom of the conical concave end of the third cavity (7) in the sewage treatment tank (1) is connected to a discharge pipe (5). A stirring motor (10) is installed on the upper part of the inner wall of the first cavity (8). The output shaft of the stirring motor (10) is fixedly connected to a stirrer. A drain pipe (12) is fixedly connected to one side of the third cavity (7) in the sewage treatment tank (1).

4. The integrated oily wastewater treatment device according to claim 1, characterized in that: A water pump is installed inside the second cavity (9), and the output end of the water pump inside the second cavity (9) is inserted into the third cavity (7). A filter screen is installed at the connection between the first cavity (8) and the second cavity (9).

5. The integrated oily wastewater treatment device according to claim 1, characterized in that: Aeration pipes (11) are installed on both sides of the inner wall of the third cavity (7) in the sewage treatment tank (1).

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