Oil removal device

Abstract

The utility model discloses an oil removal device, which relates to the technical field of sewage treatment and particularly comprises a device body, a filter screen is arranged in an inner cavity of the device body, the filter screen divides the inner cavity of the device body into an impurity cleaning cavity and an oil removal cavity, the oil removal cavity is provided with an oil absorption belt, an extrusion roller group is arranged above the oil removal cavity, and the extrusion roller group is arranged above the oil removal cavity. The extrusion roller set extrudes the oil absorption belt, an oil receiving box is arranged below the extrusion roller set, and an oil discharging pipe is arranged on one side of the bottom end of an inner cavity of the oil receiving box. According to the oil removal device, the oil absorption belt is used for filtering sewage for multiple times, so that the oil absorption belt can effectively absorb oil stains on the surface of the sewage and among the sewage, the oil removal effect of the sewage is improved, the extrusion roller set is used for achieving extrusion regeneration of the oil absorption belt, the oil stain adsorption effect of the oil absorption belt is guaranteed, and the oil removal effect of the sewage is further improved.

Description

Technical Field

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

[0002] During the treatment of oily wastewater, an oil removal device is needed to remove oily substances from the wastewater. Some oil removal devices have been disclosed in related technologies, such as the scheme disclosed in the authorized patent document with application number CN202420068397.7, which includes an aeration box. The front side of the aeration box is inlaid with a transparent observation window. The four corners of the bottom of the aeration box are fixed with casters. The aeration box is equipped with an oil removal component inside, which is used to hold kitchen waste wastewater and filter and remove oil from the kitchen waste wastewater. The bottom of the aeration box is equipped with an aeration component and other components.

[0003] The above-mentioned solution uses an oil-absorbing membrane to adsorb the oil floating on the top of the sewage. However, due to the limited adsorption capacity of the oil-absorbing membrane, the oil removal efficiency gradually decreases as adsorption proceeds. Moreover, oil is also distributed inside the sewage, and only the oil on the top of the sewage is adsorbed, which affects the oil removal effect. Based on this, this application proposes an oil removal device. Utility Model Content

[0004] This invention provides an oil removal device that solves the problems mentioned in the background art, such as low adsorption efficiency and limited adsorption effect when using a fixed oil-absorbing membrane to adsorb oil stains.

[0005] This utility model provides the following technical solution: an oil removal device, including a device body, an inner cavity of which is provided with a filter screen, the filter screen dividing the inner cavity of the device body into an impurity cleaning cavity and an oil removal cavity, an oil suction belt in the oil removal cavity, a squeezing roller group above the oil removal cavity, the squeezing roller group squeezing the oil suction belt, an oil receiving box below the squeezing roller group, and an oil discharge pipe on one side of the bottom end of the inner cavity of the oil receiving box.

[0006] Preferably, a sewage inlet pipe is provided at the top of one side of the device body, and the sewage inlet pipe is located on the side of the impurity cleaning chamber away from the oil removal chamber. A sewage outlet pipe is provided at the bottom of the other side of the device body, and the sewage outlet pipe is located on the side of the oil removal chamber away from the impurity cleaning chamber.

[0007] Preferably, a first synchronous roller is provided at the bottom of the oil removal chamber, and support plates are provided on both sides of the top of the oil removal chamber. A second synchronous roller is provided at the top of the support plate. The first synchronous roller and the second synchronous roller are connected by an oil suction belt. A first servo motor is provided on the outside of the support plate, and the second synchronous roller is driven by the first servo motor.

[0008] Preferably, a guide roller is provided at the bottom end of the support plate, the guide roller is located directly above the first synchronous roller, and the top of the guide roller is in contact with the inner wall of the oil suction belt.

[0009] Preferably, the extrusion roller assembly includes two extrusion rollers distributed vertically, the extrusion rollers are movably connected to the support plate, and a second servo motor is provided on the outer side of the support plate, the extrusion rollers are driven by the second servo motor.

[0010] Preferably, the impurity cleaning chamber is provided with a first partition and a second partition, the second partition being located between the first partition and the filter screen. The impurity cleaning chamber is divided into a sedimentation zone by the first partition and the second partition. Both sides of the sedimentation zone are provided with slag discharge valves. A material gathering plate is provided in the sedimentation zone. The material gathering plate is connected to the device body via a hydraulic telescopic rod. A permeable mesh plate is provided at one end of the material gathering plate. A sealing plate is connected to one side of the material gathering plate via an electric telescopic rod. The sealing plate is adapted to the permeable mesh plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This oil removal device, through the setting of the impurity cleaning chamber, pre-treats the sewage by reducing the sewage flow rate and filtering the sewage with a filter screen, thereby reducing the impurity content in the sewage, thus reducing the probability of the oil suction belt being blocked, and can balance the sewage flow rate to ensure the oil adsorption efficiency of the oil suction belt.

[0013] 2. This oil removal device uses an oil suction belt to filter wastewater multiple times, enabling the belt to effectively adsorb oil stains on and between the wastewater surfaces, thus improving the oil removal effect. Furthermore, the oil suction belt is regenerated by squeezing rollers, ensuring its oil adsorption effect and further enhancing the oil removal efficiency. Attached Figure Description

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

[0015] Figure 2 This is a top view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the polymer plate structure of this utility model;

[0018] Figure 5 This is a cross-sectional schematic diagram of the oil-absorbing belt structure of this utility model.

[0019] In the diagram: 1. Device body; 2. Sewage inlet pipe; 3. Sewage outlet pipe; 4. First baffle; 5. Second baffle; 6. Filter screen; 7. Oil suction belt; 8. Material gathering plate; 9. Slag discharge valve; 10. Second servo motor; 11. Extrusion roller; 12. Oil receiving box; 13. Oil discharge pipe; 14. Hydraulic telescopic rod; 15. First synchronous roller; 16. Second synchronous roller; 17. Guide roller; 18. Permeable mesh plate; 19. Sealing plate; 20. Electric telescopic rod; 21. Oil suction base layer; 22. Synchronous belt body; 23. Support plate; 24. First servo motor; 25. Impurity receiving cavity. Detailed Implementation

[0020] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] This utility model provides an embodiment: Please refer to Figures 1-5 An oil removal device includes a device body 1. The inner cavity of the device body 1 is provided with a filter screen 6, which divides the inner cavity of the device body 1 into an impurity cleaning chamber and an oil removal chamber. A sewage inlet pipe 2 is provided at the top of one side of the device body 1, located on the side of the impurity cleaning chamber away from the oil removal chamber. A sewage outlet pipe 3 is provided at the bottom of the other side of the device body 1, located on the side of the oil removal chamber away from the impurity cleaning chamber. When the oil removal device is in use, the sewage to be removed enters the impurity cleaning chamber through the sewage inlet pipe 2, passes through the filter screen 6, and enters the oil removal chamber. After oil removal, it is discharged through the sewage outlet pipe 3.

[0022] The impurity cleaning chamber is equipped with a first baffle 4 and a second baffle 5. The height of the outlet end of the sewage inlet pipe 2 is not higher than the height of the first baffle 4. The height of the outlet end of the sewage inlet pipe 2 can be set according to requirements and is not limited here. The second baffle 5 is located between the first baffle 4 and the filter screen 6. Both the first baffle 4 and the second baffle 5 are concave structures. The middle part of the first baffle 4, the middle part of the second baffle 5 and the filter screen 6 form a stepped shape. The height of the middle part of the first baffle 4 is lower than the height of the middle part of the second baffle 5. With this arrangement, the impurity cleaning chamber is divided into multiple sedimentation zones by the first baffle 4 and the second baffle 5, which can reduce the flow rate of sewage in the impurity cleaning chamber and facilitate the sedimentation of impurities in the sewage, thereby reducing the impact of impurities in the sewage on the filter screen 6 and the oil removal chamber.

[0023] Both sides of the sedimentation zone are equipped with slag discharge valves 9. A material gathering plate 8 is installed in the sedimentation zone. The material gathering plate 8 is connected to the device body 1 via a hydraulic telescopic rod 14. The extension and retraction of the hydraulic telescopic rod 14 can change the position of the material gathering plate 8 connected to it. A permeable mesh plate 18 is installed at one end of the material gathering plate 8. The permeable mesh plate 18 can intercept the sedimented impurities. A sealing plate 19 is connected to one side of the material gathering plate 8 via an electric telescopic rod 20. The sealing plate 19 is adapted to the permeable mesh plate 18. The extension and retraction of the electric telescopic rod 20 can change the position of the sealing plate 19 connected to it. The sealing plate 19 can be used to seal the permeable mesh plate 18.

[0024] As described above, under the action of the hydraulic telescopic rod 14, the agglomerating plate 8 can move within the sedimentation zone. During its movement, the agglomerating plate 8 can push the sedimentation impurities within the sedimentation zone, causing them to aggregate. Furthermore, when the agglomerating plate 8 moves away from the recessed portion of the first partition 4 or the second partition 5, an impurity-receiving cavity 25 is formed between the agglomerating plate 8, the device body 1, and the first partition 4, the second partition 5, or the filter screen 6. Figure 1 As shown, at this time, the electric telescopic rod 20 drives the sealing plate 19 to move until the sealing plate 19 seals the permeable mesh plate 18. The impurity receiving cavity 25 is in an independent state. The slag discharge valve 9 can be used to discharge the precipitated impurities in the impurity receiving cavity 25, thereby cleaning the impurities in the impurity cleaning cavity. In addition, the device can continue to work during the impurity cleaning process to ensure the working efficiency of the device.

[0025] The oil removal chamber is equipped with an oil suction belt 7, the bottom of which contacts the bottom of the inner cavity of the oil removal chamber. A first synchronous roller 15 is installed at the bottom of the oil removal chamber, and support plates 23 are installed on both sides of the top of the oil removal chamber. A second synchronous roller 16 is installed at the top of the support plates 23. The first synchronous roller 15 and the second synchronous roller 16 are connected by the oil suction belt 7. A first servo motor 24 is installed on the outside of the support plates 23. The second synchronous roller 16 is driven by the first servo motor 24. The output shaft of the first servo motor 24 is connected to the second synchronous roller 16. With the first servo motor 24, the rotation of the first servo motor 24 can drive the second synchronous roller 16 connected to it to rotate. The second synchronous roller 16 drives the oil suction belt 7 to rotate. Different parts of the oil suction belt 7 can enter the sewage in sequence to achieve the adsorption of oil in the sewage.

[0026] A squeezing roller assembly is installed above the oil removal chamber. The squeezing roller assembly includes two squeezing rollers 11 distributed vertically. The squeezing rollers 11 are movably connected to the support plate 23. A second servo motor 10 is installed on the outer side of the support plate 23. The squeezing rollers 11 are driven by the second servo motor 10. The oil-absorbing belt 7 is located between the two squeezing rollers 11. When the second servo motor 10 rotates, it can drive the squeezing rollers 11 connected to it to rotate. The cooperation of the two squeezing rollers 11 can squeeze the oil-absorbing belt 7. Under the action of squeezing force, the oil adsorbed in the oil-absorbing belt 7 is squeezed out, realizing the regeneration of the oil-absorbing belt 7. An oil receiving box 12 is installed below the squeezing roller assembly. An oil drain pipe 13 is installed on one side of the bottom of the inner cavity of the oil receiving box 12. The squeezed oil falls into the oil receiving box 12 and is discharged through the oil drain pipe 13. The bottom of the inner cavity of the oil receiving box 12 is inclined, and the oil drain pipe 13 is located at the lower end of the bottom of the inner cavity of the oil receiving box 12.

[0027] A guide roller 17 is provided at the bottom of the support plate 23. The guide roller 17 is located directly above the first synchronous roller 15. The top of the guide roller 17 is in contact with the inner wall of the oil suction belt 7. The top of the guide roller 17 is at the same height as the top of the extrusion roller 11 located below. The guide roller 17 can guide the oil suction belt 7 so that the oil suction belt 7 is in a horizontal state in the extrusion area, which facilitates the extrusion of oil stains.

[0028] As described above, the oil removal components installed in the oil removal chamber can simultaneously absorb oil and regenerate during use, ensuring the speed at which the oil suction belt 7 absorbs oil. Furthermore, the wastewater to be removed is filtered by the oil suction belt 7, which effectively absorbs oil from the wastewater, thereby improving the oil removal effect.

[0029] The oil-absorbing belt 7 has a layered structure, including a synchronous belt body 22. The synchronous belt body 22 is evenly provided with water-permeable mesh holes. The outer surface of the synchronous belt body 22 is wrapped with an oil-absorbing base layer 21. The material of the oil-absorbing base layer 21 can be an oil-absorbing sponge. The material of the oil-absorbing base layer 21 can be set according to the requirements and is not limited here.

[0030] All electrical components involved in this application are existing technologies. Those skilled in the art can select appropriate models of electrical components according to their needs. No restrictions or elaborations are made here. Those skilled in the art understand their connection methods. With the help of those skilled in the art, all electrical components in this application and their compatible power supplies can be connected by wires. According to the actual situation, appropriate controllers can be selected to meet control requirements. For specific connections and control sequences, please refer to the description below. The electrical connections between the various electrical components are completed in the order of their operation. The detailed connection methods are well-known technologies in the art. The following mainly introduces the working principle and process, and will not describe the electrical control.

[0031] In summary: When using this oil removal device, the wastewater to be removed enters the impurity cleaning chamber through the wastewater inlet pipe 2. The wastewater slows its flow rate in the impurity cleaning chamber, causing impurities in the wastewater to settle. The supernatant from the wastewater in the sedimentation zone is filtered again by the filter screen 6 and then comes into contact with the oil-absorbing belt 7. The oil-absorbing belt 7 adsorbs the oil in the wastewater, achieving the purpose of oil removal. The oil-removed wastewater passes through the oil-absorbing belt 7 and is discharged from the wastewater outlet pipe 3. During operation, the first servo motor 24 drives the second synchronous roller 16 to rotate, which in turn drives the oil-absorbing belt 7 to rotate. Different parts of the oil-absorbing belt 7 can sequentially enter the wastewater to adsorb the oil. When the oil-absorbing belt 7 passes through the squeezing roller group, the second servo motor 10 drives the squeezing roller 11 to rotate. The combined use of the two squeezing rollers 11 squeezes the oil-absorbing belt 7, squeezing out the oil adsorbed within it, thus regenerating the oil-absorbing belt 7 and ensuring its oil adsorption efficiency.

[0032] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each structure adopt conventional technical means such as bolt connection that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. An oil removal device, comprising a device body (1), characterized in that: The inner cavity of the device body (1) is provided with a filter screen (6), which divides the inner cavity of the device body (1) into an impurity cleaning cavity and an oil removal cavity. The oil removal cavity is provided with an oil suction belt (7), and a squeezing roller group is provided above the oil removal cavity. The squeezing roller group squeezes the oil suction belt (7). An oil receiving box (12) is provided below the squeezing roller group, and an oil drain pipe (13) is provided on one side of the bottom end of the inner cavity of the oil receiving box (12).

2. The oil removal device according to claim 1, characterized in that: A sewage inlet pipe (2) is provided at the top of one side of the device body (1). The sewage inlet pipe (2) is located on the side of the impurity cleaning chamber away from the oil removal chamber. A sewage outlet pipe (3) is provided at the bottom of the other side of the device body (1). The sewage outlet pipe (3) is located on the side of the oil removal chamber away from the impurity cleaning chamber.

3. The oil removal device according to claim 1, characterized in that: The bottom of the degreasing chamber is provided with a first synchronous roller (15), and both sides of the top of the degreasing chamber are provided with support plates (23). The top of the support plate (23) is provided with a second synchronous roller (16). The first synchronous roller (15) and the second synchronous roller (16) are connected by a suction belt (7). The outside of the support plate (23) is provided with a first servo motor (24), and the second synchronous roller (16) is driven by the first servo motor (24).

4. The oil removal device according to claim 3, characterized in that: The bottom end of the support plate (23) is provided with a guide roller (17), which is located directly above the first synchronous roller (15). The top of the guide roller (17) is in contact with the inner wall of the oil suction belt (7).

5. The oil removal device according to claim 3, characterized in that: The extrusion roller assembly includes two extrusion rollers (11) distributed vertically. The extrusion rollers (11) are movably connected to the support plate (23). A second servo motor (10) is provided on the outer side of the support plate (23). The extrusion rollers (11) are driven by the second servo motor (10).

6. The oil removal device according to claim 1, characterized in that: The impurity cleaning chamber is provided with a first partition (4) and a second partition (5). The second partition (5) is located between the first partition (4) and the filter screen (6). The impurity cleaning chamber is divided into a sedimentation zone by the first partition (4) and the second partition (5). A slag discharge valve (9) is provided on both sides of the sedimentation zone. A material gathering plate (8) is provided in the sedimentation zone. The material gathering plate (8) is connected to the device body (1) through a hydraulic telescopic rod (14). A water-permeable mesh plate (18) is provided at one end of the material gathering plate (8). A sealing plate (19) is connected to one side of the material gathering plate (8) through an electric telescopic rod (20). The sealing plate (19) is adapted to the water-permeable mesh plate (18).

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