Oil-water separation, color removal, odor removal and dust removal device for recovered oil agent

Abstract

The utility model relates to the technical field of oil gas recovery, in particular to an oil-water separation, color removal, odor removal and dust removal device for oil recovery, which comprises a base and an oil inlet pipe, a settling tank is fixedly connected to the top end of the base, a first partition plate is fixedly connected to the left side in the settling tank, and a first oil overflow port is formed in the middle of the top of the first partition plate. A second oil overflow port is formed in the middle of the top of the second partition plate; through design cooperation, the device can separate an oil agent and water injected into the settling tank by the oil inlet pipe, after the oil agent flows in, the oil agent passes through the first settling tank and filter cotton in the hollow shell to realize primary oil-water separation, and then flows into the second settling tank through the first oil overflow port, and an activated carbon placing frame is arranged at the lower part in the second settling tank to realize secondary oil-water separation. The activated carbon is arranged on the inner side of the filter screen, so that the functions of oil-water separation and odor removal are realized.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas recovery technology, and in particular to an oil-water separation, decolorization, deodorization and dust removal device for oil recovery. Background Technology

[0002] The PTFE membrane intelligent degreasing and oil and gas recovery equipment is an environmentally friendly device used to treat industrial waste gas containing grease. The main function of this equipment is to remove grease and organic solvents from the waste gas, reduce environmental pollution, and may recover useful grease or other organic substances.

[0003] Polytetrafluoroethylene (PTFE) membrane is a material with extremely low surface energy and excellent chemical stability. It has a high affinity for greases and other organic matter. In intelligent degreasing and oil and gas recovery equipment, PTFE membrane is often used as an adsorbent to capture greases and organic solvents in waste gas. The working principle typically includes the following steps: Waste gas collection: First, waste gas containing grease generated from industrial production processes is collected; Oil and gas adsorption: The waste gas passes through an adsorption tower filled with PTFE membrane, where greases and organic solvents are adsorbed by the membrane; Oil and gas recovery: The PTFE membrane that has adsorbed grease can release the grease through heating or other methods, achieving oil and gas recovery; Grease treatment: The recovered grease can be further processed, such as refining for reuse or as an industrial raw material; Purified emission: After adsorption treatment, the grease content of the waste gas is greatly reduced, allowing it to meet environmental standards before being discharged into the atmosphere.

[0004] However, during the waste gas treatment process, grease is captured by adsorption materials such as polytetrafluoroethylene (PTFE) membranes. Since the waste gas may contain water vapor, this water vapor will be adsorbed along with the grease, resulting in the presence of moisture in the recovered grease. Another reason for the presence of moisture in the grease is that the PTFE membrane that adsorbs the grease usually needs to release the grease through heating or other methods. During this process, the water vapor originally adsorbed on the membrane will also be released and mix with the grease. Both of these operations will result in the presence of moisture in the grease. In subsequent grease treatment, the presence of moisture in the grease will directly lead to a decrease in the purity and quality of the grease. In view of this, an oil-water separation, decolorization, deodorization, and dust removal device for recovering oil is provided to overcome the above defects. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an oil-water separation, decolorization, deodorization, and dust removal device for recovering oil.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an oil-water separation, decolorization, deodorization, and dust removal device for recovering oil, comprising a base and an oil inlet pipe. A sedimentation tank is fixedly connected to the top of the base. A first partition is fixedly connected to the left side inside the sedimentation tank, and a first overflow port is opened in the middle of the top of the first partition. A second partition is fixedly connected to the right side inside the sedimentation tank, and a second overflow port is opened in the middle of the top of the second partition. A first sedimentation tank is arranged from the left side of the first partition to the top left side of the sedimentation tank. A second sedimentation tank is arranged from the right side of the first partition to the middle of ... An oil outlet is located in the middle of the upper right side inside the sedimentation tank. A hollow shell is fixedly connected to the middle of the upper left side inside the sedimentation tank. Filter cotton is installed inside the hollow shell. A discharge pipe is fixedly connected to the middle of the lower part of the hollow shell. An activated carbon placement frame is fixedly connected to the lower middle part of the sedimentation tank. A filter screen is fixedly connected to the inner edge of the activated carbon placement frame. A first drain pipe is fixedly connected to the middle of the lower left side inside the sedimentation tank. A second drain pipe is fixedly connected to the middle of the lower bottom inside the sedimentation tank. A third drain pipe is fixedly connected to the middle of the lower right side inside the sedimentation tank. A water pump is fixedly connected to the center of the first, second, and third drain pipes. A fixed flange is provided at the end of the first, second, and third drain pipes near the water pump.

[0007] As a further description of the above technical solution: the bottom end of the oil inlet pipe contacts the top end of the oil inlet of the sedimentation tank, the upper part of the hollow shell is interconnected with the bottom of the oil inlet, and the top end of the water pump is fixedly connected to the bottom of the sedimentation tank. This allows for the separation of oil and water injected into the sedimentation tank through the oil inlet pipe. When the oil flows in, it passes through the first sedimentation tank and the filter cotton inside the hollow shell, achieving initial oil-water separation. Then, it flows into the second sedimentation tank through the first overflow port. An activated carbon placement frame is provided at the bottom of the second sedimentation tank, and the activated carbon is placed inside the filter screen, thereby achieving further oil-water separation and deodorization.

[0008] As a further description of the above technical solution: the cross-sectional shape and size of the filter cotton are matched with the inner shape and size of the cross-section of the hollow shell, and the height of the filter cotton is four-fifths of the height of the hollow shell. This allows the filter cotton to perform preliminary screening of water and oil. The speed at which water passes through the filter cotton is faster than that of oil. Therefore, the water will reach the bottom of the first sedimentation tank first, while the oil will drip onto the surface of the water.

[0009] As a further description of the above technical solution: the activated carbon placement frame is a combination of two rectangles, and the filter screen is set at the inner edge of the upper rectangle. Activated carbon particles are stuffed into the inner side of the activated carbon placement frame and the filter screen. Activated carbon has the effects of decolorization and deodorization. The mixture of oil and water entering the second sedimentation tank is decolorized, deodorized and dusted, which improves the quality of water and oil after filtration to a certain extent.

[0010] As a further description of the above technical solution: the water pump divides and fixes the center of the first drain pipe, the second drain pipe and the third drain pipe at the input end and the output end of the water pump, and the output end of the water pump is set on the front side, so that the water in the first sedimentation tank, the second sedimentation tank and the third sedimentation tank can be discharged outward, so that the water and oil level are always at the first oil overflow port of the first baffle.

[0011] As a further description of the above technical solution: A connecting pipe is fixedly connected to the middle right of the rear left side inside the sedimentation tank. A metering pump is fixedly connected to the end of the connecting pipe away from the sedimentation tank. A storage tank is provided at the input end of the metering pump. A motor is fixedly connected to the middle of the rear left side inside the sedimentation tank. An output shaft is fixedly connected to the output end of the motor. An agitator is fixedly connected to the outside of the output shaft. The middle of the front left side inside the sedimentation tank is rotatably connected to the top of the front side of the output shaft. This helps the oil that has been dispersed by the filter cotton to disperse into fine particles in the water and then recombine to form larger oil droplets, which is convenient for separation.

[0012] As a further description of the above technical solution: the storage tank contains a demulsifier, and there are two stirring blades, which are distributed on the front and rear sides outside the output shaft. This allows the demulsifier delivered by the metering pump to be quickly and evenly mixed into the mixture of oil and water, helping the demulsifier to play a better role and promoting the aggregation of oil droplets.

[0013] This utility model has the following beneficial effects:

[0014] This utility model designs an oil-water separation, decolorization, deodorization, and dust removal device for recovering oil. Through its design and coordination, the device can separate the oil and water injected into the sedimentation tank through the oil inlet pipe. When the oil flows in, it passes through the first sedimentation tank and the filter cotton inside the hollow shell, achieving initial oil-water separation. Then, it flows into the second sedimentation tank through the first overflow port. The second sedimentation tank has an activated carbon placement frame at the bottom, with the activated carbon placed inside the filter screen, thereby achieving further oil-water separation and deodorization. Finally, it flows into the third sedimentation tank through the second overflow port. At this point, the oil and water stratification is more obvious. The oil is discharged directly from the oil outlet, while the water that has settled in the oil is discharged outward through the water pump and the first, second, and third drain pipes installed below the first, second, and third sedimentation tanks, thus achieving the purpose of oil-water separation for recovering the oil.

[0015] This utility model designs an oil-water separation, decolorization, deodorization, and dust removal device for recycled oil. Through its design and coordination, the device allows a metering pump to periodically and quantitatively deliver demulsifier from a storage tank into the first sedimentation tank after the oil and water have been initially filtered by filter cotton. This helps the oil, which has been dispersed by the filter cotton, to disperse into fine particles in the water and then recombine into larger oil droplets, facilitating separation. At the same time, a rotatable stirring blade is installed behind the first sedimentation tank, which can quickly and evenly mix the demulsifier delivered by the metering pump into the oil and water mixture, helping the demulsifier to function better and promoting the aggregation of oil droplets. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the sedimentation tank of this utility model in longitudinal cross-section;

[0018] Figure 3 This is a three-dimensional structural diagram of the hollow shell in longitudinal section of this utility model;

[0019] Figure 4 This is a schematic diagram of the overall structure of the water pump of this utility model;

[0020] Figure 5 This is a schematic diagram of the overall structure of the motor and the metering pump of this utility model.

[0021] Legend:

[0022] 1. Base; 2. Sedimentation tank; 3. Oil inlet; 4. Oil inlet pipe; 5. First drain pipe; 6. Second drain pipe; 7. Third drain pipe; 8. Fixed flange; 9. Oil outlet; 10. Storage tank; 11. First partition; 12. Second partition; 13. First sedimentation tank; 14. Second sedimentation tank; 15. Third sedimentation tank; 16. Hollow shell; 17. Activated carbon placement frame; 18. Filter screen; 19. First overflow port; 20. Second overflow port; 21. Output shaft; 22. Stirring blade; 23. Filter cotton; 24. Discharge pipe; 25. Water pump; 26. Motor; 27. Connecting pipe; 28. Metering pump. Detailed Implementation

[0023] Reference Figures 1-5The present invention provides an oil-water separation, decolorization, deodorization, and dust removal device for recycled oil, comprising a base 1 and an oil inlet pipe 4. A sedimentation tank 2 is welded to the top of the base 1. A first partition 11 is welded to the left side inside the sedimentation tank 2, and a first oil overflow port 19 is opened in the middle of the top of the first partition 11. A second partition 12 is welded to the right side inside the sedimentation tank 2, and a second oil overflow port 20 is opened in the middle of the top of the second partition 12. A first sedimentation tank 13 is set from the left side of the first partition 11 to the top left side of the sedimentation tank 2. A sedimentation tank 2 extends from the right side of the first partition 11 to the left side of the second partition 12. A second sedimentation tank 14 is located in the middle of the interior. A third sedimentation tank 15 is located from the right side of the second partition 12 to the top right side of the sedimentation tank 2. An oil inlet 3 is located in the middle of the upper left side of the interior of the sedimentation tank 2. An oil outlet 9 is located in the middle of the upper right side of the interior of the sedimentation tank 2. A hollow shell 16 is fixed to the middle of the upper left side of the interior of the sedimentation tank 2 by bolts. Filter cotton 23 is inserted into the hollow shell 16. A discharge pipe 24 is welded to the middle of the lower part of the interior of the hollow shell 16. An activated carbon placement frame 17 is welded to the lower middle of the interior of the sedimentation tank 2. The inner edge of the activated carbon placement frame 17 is set with... The filter screen 18 is connected to the sedimentation tank 2. The lower left center is penetrated by the first drain pipe 5 and fixed by a flange. The lower center of the sedimentation tank 2 is penetrated by the second drain pipe 6 and fixed by a flange. The lower right center of the sedimentation tank 2 is fixedly connected by the third drain pipe 7 and fixed by a flange. A water pump 25 is installed at the center of the first drain pipe 5, the second drain pipe 6, and the third drain pipe 7. A fixing flange 8 is installed at the end of the first drain pipe 5, the second drain pipe 6, and the third drain pipe 7 closest to the water pump 25. The bottom end of the oil inlet pipe 4 is connected to the oil inlet 3 of the sedimentation tank 2. The top of the hollow shell 16 is in contact with the bottom of the oil inlet 3. The top of the water pump 25 is fixedly connected to the bottom of the sedimentation tank 2, which can separate the oil and water injected into the sedimentation tank 2 by the oil inlet pipe 4. When the oil flows in, it passes through the first sedimentation tank 13 and the filter cotton 23 inside the hollow shell 16 to achieve preliminary oil-water separation. Then it flows into the second sedimentation tank 14 through the first overflow port 19. The second sedimentation tank 14 is equipped with an activated carbon placement frame 17 at the bottom. The activated carbon is placed inside the filter screen 18 to achieve oil-water separation and deodorization functions again.

[0024] As a further implementation of the above technical solution: the cross-sectional shape and size of the filter cotton 23 are matched with the inner shape and size of the cross-section of the hollow shell 16, and the height of the filter cotton 23 is four-fifths of the internal height of the hollow shell 16, which allows the filter cotton 23 to perform preliminary screening of water and oil. The speed at which water passes through the filter cotton 23 is faster than that of oil, so the water will reach the bottom of the first sedimentation tank 13 first, while the oil will drip onto the surface of the water.

[0025] As a further implementation of the above technical solution: the activated carbon placement frame 17 is a combination of two rectangles, and the filter screen 18 is set at the inner edge of the upper rectangle. Activated carbon particles are stuffed into the inner side of the activated carbon placement frame 17 and the filter screen 18. Activated carbon has the effects of decolorization, deodorization and dust removal. The mixture of oil and water entering the second sedimentation tank 14 is subjected to decolorization, deodorization and dust removal operations, which improves the quality of water and oil after filtration to a certain extent.

[0026] As a further implementation of the above technical solution: the water pump 25 divides and fixes the center of the first drain pipe 5, the second drain pipe 6 and the third drain pipe 7 at the input end and the output end of the water pump 25, and the output end of the water pump 25 is set on the front side, so that the water in the first sedimentation tank 13, the second sedimentation tank 14 and the third sedimentation tank 15 can be discharged outward, so that the water and oil levels are always at the first oil overflow port 19 of the first baffle 11.

[0027] As a further implementation of the above technical solution: A connecting pipe 27 is fixedly connected to the middle right of the rear left side inside the sedimentation tank 2. A metering pump 28 is fixedly connected to the end of the connecting pipe 27 away from the sedimentation tank 2. A storage tank 10 is provided at the input end of the metering pump 28. A motor 26 is fixedly connected to the middle of the rear left side inside the sedimentation tank 2. An output shaft 21 is fixedly connected to the output end of the motor 26. An stirring blade 22 is fixedly connected to the outside of the output shaft 21. The middle of the front left side inside the sedimentation tank 2 is rotatably connected to the top of the front side of the output shaft 21, which can help the oil that is dispersed by the filter cotton 23 to disperse into fine particles in the water and then re-coagulate into larger oil droplets, which is convenient for separation.

[0028] As a further implementation of the above technical solution: the storage tank 10 contains a demulsifier, and there are two stirring blades 22, which are distributed on the front and rear sides of the output shaft 21. This can quickly and evenly mix the demulsifier delivered by the metering pump 28 into the mixture of oil and water, helping the demulsifier to play a better role and promoting the aggregation of oil droplets.

[0029] Working principle:

[0030] When using this invention, demulsifier is placed in the storage tank 10. After filling, the input end of the metering pump 28 is connected to the storage tank 10. Then, the mixture of oil and water enters the oil inlet 3 at the top of the settling tank 2 from the oil inlet pipe 4. The oil-water mixture enters the hollow shell 16 directly through the oil inlet 3. The oil-water mixture passes directly through the filter cotton 23 inside the hollow shell 16. The water is quickly discharged from the discharge pipe 24 at the bottom of the hollow shell 16 into the first settling tank 13 on the left side inside the settling tank 2, while the oil slowly passes through the filter cotton 23 and is discharged downwards from the discharge pipe 24, dripping down. On the surface of the water, the metering pump 28 and motor 26 are then turned on at regular intervals. First, the metering pump 28 draws a metered amount of demulsifier from the storage tank 10 and injects it directly into the first sedimentation tank 13 through the connecting pipe 27 at the output end of the metering pump 28. The demulsifier mixes directly with the water in the first sedimentation tank 13 on the left side of the first partition 11. Meanwhile, the motor 26 drives the stirring blade 22 to rotate in the first sedimentation tank 13 through the output shaft 21. The water and demulsifier are quickly mixed by the rotation of the stirring blade 22. After the start-up time of the motor 26 and metering pump 28 is reached, the motor 26 and metering pump 28 automatically turn off. When the container is closed, the demulsifier is evenly mixed in the water, forcing the emulsified oil in the water to rise to the surface and combine directly with the oil floating on the surface, forming large flakes of oil. When the water level reaches the first overflow port 19 of the baffle, the oil carries a small amount of water into the second sedimentation tank 14. Most of the water in the first sedimentation tank 13 is concentrated below the first overflow port 19. The oil entering the second sedimentation tank 14 directly enters the activated carbon rack. At this point, the activated carbon inside the activated carbon rack 17 is blocked by the filter screen 18, and the activated carbon can only be activated... The activated carbon is carried by the water flow inside the charcoal placement frame 17. After the activated carbon performs decolorization, deodorization and dust removal operations on the oil and water, the oil floats to the water surface until the water level reaches the second oil overflow port 20 at the top of the second partition 12. When the water level reaches below the oil outlet 9, the separated oil is discharged directly from the oil outlet 9. The water at the bottom of the first sedimentation tank 13, the second sedimentation tank 14 and the third sedimentation tank 15 is pumped by the water pump 25 through the fixed flange 8 from the first drain pipe 5, the second drain pipe 6 and the third drain pipe 7 to achieve the effect of oil-water separation.

[0031] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An oil-water separation, decolorization, deodorization, and dust removal device for recovering oil, comprising a base (1) and an oil inlet pipe (4), characterized in that: A sedimentation tank (2) is fixedly connected to the top of the base (1). A first partition (11) is fixedly connected to the left side of the sedimentation tank (2). A first overflow port (19) is opened in the middle of the top of the first partition (11). A second partition (12) is fixedly connected to the right side of the sedimentation tank (2). A second overflow port (20) is opened in the middle of the top of the second partition (12). A first sedimentation trough (13) is set from the left side of the first partition (11) to the top left of the sedimentation tank (2). A second sedimentation trough (14) is set from the right side of the first partition (11) to the middle of the left side of the sedimentation tank (2). A third sedimentation trough (15) is set from the right side of the second partition (12) to the top right of the sedimentation tank (2). An oil inlet (3) is set in the middle of the upper left side of the sedimentation tank (2). An oil outlet (9) is set in the middle of the upper right side of the sedimentation tank (2). A hollow shell (16) is fixedly connected to the upper middle of the left side of the sedimentation tank (2). A filter cotton (23) is installed inside the hollow shell (16). A discharge pipe (24) is fixedly connected to the lower middle of the hollow shell (16). An activated carbon placement frame (17) is fixedly connected to the lower middle of the sedimentation tank (2). A filter screen (18) is fixedly connected to the inner edge of the activated carbon placement frame (17). A first drain pipe (5) is fixedly connected to the lower left middle of the sedimentation tank (2). A second drain pipe (6) is fixedly connected to the lower middle of the sedimentation tank (2). A third drain pipe (7) is fixedly connected to the lower right middle of the sedimentation tank (2). A water pump (25) is fixedly connected to the center of the first drain pipe (5), the second drain pipe (6), and the third drain pipe (7). A fixed flange (8) is provided at the end of the first drain pipe (5), the second drain pipe (6), and the third drain pipe (7) near the water pump (25).

2. The oil-water separation, decolorization, deodorization, and dust removal device for recycled oil as described in claim 1, characterized in that: The bottom end of the oil inlet pipe (4) is in contact with the top end of the oil inlet (3) of the sedimentation tank (2), the upper part of the hollow shell (16) is connected to the bottom of the oil inlet (3), and the top end of the water pump (25) is fixedly connected to the bottom of the sedimentation tank (2).

3. The oil-water separation, decolorization, deodorization, and dust removal device for recycled oil as described in claim 1, characterized in that: The cross-sectional shape and size of the filter cotton (23) are matched with the inner shape and size of the cross-section inside the hollow shell (16), and the height of the filter cotton (23) is four-fifths of the height inside the hollow shell (16).

4. The oil-water separation, decolorization, deodorization, and dust removal device for recycled oil as described in claim 1, characterized in that: The activated carbon placement frame (17) is a combination of two rectangles, and the filter screen (18) is located on the inner edge of the upper rectangle. Activated carbon particles are stuffed into the inner sides of the activated carbon placement frame (17) and the filter screen (18).

5. The oil-water separation, decolorization, deodorization, and dust removal device for recycled oil as described in claim 1, characterized in that: The water pump (25) divides and fixes the center of the first drain pipe (5), the second drain pipe (6) and the third drain pipe (7) at the input end and the output end of the water pump (25), and the output end of the water pump (25) is located on the front side.

6. The oil-water separation, decolorization, deodorization, and dust removal device for recycled oil as described in claim 1, characterized in that: A connecting pipe (27) is fixedly connected to the middle right of the rear left side inside the sedimentation tank (2). A metering pump (28) is fixedly connected to the end of the connecting pipe (27) away from the sedimentation tank (2). A storage tank (10) is provided at the input end of the metering pump (28). A motor (26) is fixedly connected to the middle of the rear left side inside the sedimentation tank (2). An output shaft (21) is fixedly connected to the output end of the motor (26). A stirring blade (22) is fixedly connected to the outside of the output shaft (21). The middle of the front left side inside the sedimentation tank (2) is rotatably connected to the top of the front side of the output shaft (21).

7. The oil-water separation, decolorization, deodorization, and dust removal device for recycled oil as described in claim 6, characterized in that: The storage tank (10) contains a demulsifier, and there are two stirring blades (22), which are distributed on the front and rear sides of the outer side of the output shaft (21).

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