Carbon washing tank and integrated oil removal system

Abstract

The utility model provides a carbon washing tank and an integrated oil removal system, and relates to the technical field of adsorption oil removal. The carbon washing tank comprises a carbon washing tank body and a conveying channel, one end of the conveying channel is communicated with the bottom of the carbon washing tank body, the other end of the conveying channel is used for being communicated with the top of the activated carbon column, a first compression air valve is arranged on the conveying channel and used for being communicated with compressed air, and therefore a carbon-water mixture in the carbon washing tank body is sucked to the activated carbon column through pressure difference. Activated carbon in the carbon washing tank body is rapidly and conveniently filled into an activated carbon column under the action of compressed air, the labor intensity and risks can be greatly reduced, and the device has the advantages of being low in cost, high in efficiency and the like. Comprising the carbon washing tank is high in oil removal efficiency and safe to operate.

Description

Technical Field

[0001] This utility model relates to the field of adsorption oil removal technology, and more specifically, to a carbon washing tank and an integrated oil removal system. Background Technology

[0002] Adsorption-based oil removal is generally understood as the phenomenon where one or more components of the fluid accumulate on the solid surface when an adsorbent (usually a porous solid) comes into contact with a fluid (such as a liquid or gas). In the chemical industry, activated carbon is often used for adsorption-based oil and TOC removal. Currently, activated carbon used for adsorption-based oil removal needs to be cleaned in a carbon washing tank before being filled into the activated carbon column for oil removal. Currently, the process of filling the washed activated carbon into the activated carbon column still uses traditional methods such as manual digging with shovels for transfer. This transfer method has the following disadvantages:

[0003] 1. Manual labor requires the use of auxiliary tools such as shovels and cranes, which poses a risk of accidental injury.

[0004] 2. Manual labor is labor-intensive, costly, and inefficient.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a carbon washing tank and an integrated oil removal system to solve or improve the above-mentioned technical problems.

[0007] This utility model can be implemented as follows:

[0008] In a first aspect, the present invention provides a carbon washing tank, including a carbon washing tank body and a conveying channel; one end of the conveying channel is connected to the bottom of the carbon washing tank body, and the other end of the conveying channel is used to connect to the top of the activated carbon column. A first compressed air valve is provided on the conveying channel, which is used to connect compressed air so as to use the pressure difference to draw the carbon-water mixture in the carbon washing tank body to the activated carbon column.

[0009] In an optional embodiment, the carbon washing tank also includes a stirring motor and a stirring paddle. The stirring motor is installed in the carbon washing tank body, and the stirring paddle is disposed in the carbon washing tank body and connected to the stirring motor.

[0010] In an optional embodiment, the top of the carbon washing tank is provided with a carbon inlet, an acid inlet, and a first exhaust port;

[0011] The bottom of the carbon washing tank is equipped with a waste liquid outlet;

[0012] The bottom of the carbon washing tank is equipped with a water inlet, the height of which is lower than the height of the conveying channel where it is installed in the carbon washing tank.

[0013] A first control valve is also installed on the conveying channel.

[0014] In an optional embodiment, the carbon washing tank also includes a baffle located inside the carbon washing tank. The baffle is located at the bottom of the carbon washing tank and its height is higher than the height of the conveying channel installed at the location of the carbon washing tank, thereby preventing excessive pressure buildup of carbon at the bottom of the carbon washing tank from blocking the conveying channel at the location of the carbon washing tank.

[0015] Secondly, this utility model provides an integrated oil removal system, including an activated carbon column and a carbon washing tank according to any of the aforementioned embodiments; one end of the conveying channel is connected to the bottom of the carbon washing tank, and the other end of the conveying channel is connected to the top of the activated carbon column.

[0016] In an optional embodiment, the activated carbon column includes an activated carbon column tank and a filter plate, the filter plate being disposed inside the activated carbon column tank, and the height of the filter plate being higher than the height of the conveying channel installed at the location of the activated carbon column tank.

[0017] In an optional embodiment, the activated carbon column tank is provided with a cleaning port, the height of which is lower than the height of the filter plate.

[0018] In an optional embodiment, the top of the activated carbon column tank is provided with a liquid outlet and a second vent outlet;

[0019] An inlet is provided in the middle and / or bottom of the activated carbon column tank;

[0020] The bottom of the activated carbon column tank is equipped with a bottom drain port.

[0021] In an optional embodiment, the activated carbon column further includes a discharge channel, one end of which is connected to the bottom of the activated carbon column tank. A second compressed air valve is provided on the discharge channel to connect compressed air, thereby using the pressure difference to extract the activated carbon from the activated carbon column tank.

[0022] In an optional embodiment, the activated carbon column further includes a conical baffle disposed inside the activated carbon column tank, and the conical baffle is located at the bottom of the activated carbon column tank. The height of the conical baffle is higher than the height at which the discharge channel is installed in the activated carbon column tank, so as to reduce the packing density of activated carbon at the bottom of the activated carbon column tank.

[0023] The beneficial effects of this utility model include:

[0024] The carbon washing tank provided by this utility model includes a washing tank body and a conveying channel. One end of the conveying channel is connected to the bottom of the washing tank body, and the other end is connected to the top of the activated carbon column. A first compressed air valve is provided on the conveying channel to connect compressed air, thereby using the pressure difference to draw the carbon-water mixture in the washing tank body into the activated carbon column. By using compressed air to quickly and conveniently fill the activated carbon in the washing tank body into the activated carbon column, the manual labor intensity and risk can be greatly reduced, and it has the advantages of low cost and high efficiency. The integrated oil removal system including this carbon washing tank has high oil removal efficiency and safe operation. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the integrated oil removal system provided in this embodiment.

[0027] Icons: 1-Activated carbon inlet; 2-Stirring motor; 3-Acid inlet; 4-First exhaust port; 5-Carbon washing tank; 6-Stirring paddle; 7-Baffle; 8-Waste liquid outlet; 9-Water inlet; 10-First control valve; 11-First compressed air valve; 12-Conveying channel; 13-Filter plate; 14-Liquid outlet; 15-Second exhaust port; 16-Impure removal port; 17-Activated carbon column tank; 18-Liquid inlet; 19-Conical baffle; 20-Second compressed air valve; 21-Bottom drain port; 22-Second control valve. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product of this utility model is in use. These are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] Furthermore, the use of terms such as "horizontal" or "vertical" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Example 1

[0035] Please combine Figure 1 This embodiment provides an integrated oil removal system, which includes an activated carbon column and a carbon washing tank; wherein, the carbon washing tank is used for cleaning the activated carbon and can directly supply activated carbon to the activated carbon column.

[0036] Specifically, the carbon washing tank includes a carbon washing tank body 5 and a conveying channel 12; one end of the conveying channel 12 is connected to the bottom of the carbon washing tank body 5, and the other end of the conveying channel 12 is used to connect to the top of the activated carbon column. A first compressed air valve 11 is provided on the conveying channel 12, which is used to connect compressed air so as to use the pressure difference to draw the carbon-water mixture in the carbon washing tank body 5 to the activated carbon column.

[0037] By using compressed air to quickly and conveniently fill the activated carbon in the carbon washing tank 5 into the activated carbon column, the manual labor intensity and risk can be greatly reduced, and it has the advantages of low cost and high efficiency.

[0038] In order to improve the carbon washing efficiency, in this embodiment, the carbon washing tank also includes a stirring motor 2 and a stirring paddle 6. The stirring motor 2 is installed in the carbon washing tank body 5, and the stirring paddle 6 is disposed in the carbon washing tank body 5 and connected to the stirring motor 2.

[0039] When carbon washing is required, the stirring motor 2 is started to stir and clean the activated carbon in the carbon washing tank 5 with the stirring paddle 6. This can accelerate the reaction rate of impurities in the activated carbon with dilute sulfuric acid and improve the carbon washing efficiency.

[0040] In this embodiment, the top of the carbon washing tank 5 is provided with a carbon inlet 1, an acid inlet 3, and a first exhaust port 4. The carbon inlet 1 is used for filling activated carbon. The acid inlet 3 is used to inject dilute sulfuric acid into the tank to acid wash the activated carbon and remove impurities such as iron and potassium ions. The first exhaust port 4 is used to discharge the waste gas generated during the acid washing process.

[0041] In this embodiment, a waste liquid outlet 8 is provided at the bottom of the carbon washing tank 5, which is used to discharge the waste liquid after washing.

[0042] In this embodiment, a water inlet 9 is provided at the bottom of the carbon washing tank 5, and the height of the water inlet 9 is lower than the height of the conveying channel 12 at the location where the carbon washing tank 5 is installed. The water inlet 9 is used for pure water to enter. After the acid washing is completed and the acid washing liquid is discharged, pure water is injected into the tank through the water inlet 9 to adjust the pH value of the activated carbon by washing it with water.

[0043] In this embodiment, a first control valve 10 is also provided on the conveying channel 12. The first control valve 10 can be, for example, an electric valve. Alternatively, a solenoid valve, a manual valve, etc., can also be used.

[0044] Following the above, after the washing process is complete, the waste liquid is discharged from the waste liquid outlet 8 at the bottom. A certain amount of pure water is then injected back into the tank through the water inlet 9, with a solid-liquid ratio of carbon to water (e.g., 1:1.5). At this time, the first control valve 10 and the first compressed air valve 11 are opened. Compressed air at a certain pressure is introduced into the first compressed air valve 11 and flows into the conveying channel 12 towards the activated carbon column, creating a negative pressure at the outlet of the conveying channel 12. Under the action of this pressure difference, the mixture of activated carbon and water in the carbon washing tank 5 is drawn into the activated carbon column.

[0045] In order to avoid affecting the discharge of activated carbon, in this embodiment, the carbon washing tank also includes a baffle 7. The baffle 7 is located inside the carbon washing tank body 5. The baffle 7 is located at the bottom of the carbon washing tank and the height of the baffle 7 is higher than the height of the conveying channel 12 installed at the position of the carbon washing tank body 5. This is used to prevent the carbon from accumulating at the bottom of the carbon washing tank body 5 and causing excessive pressure to block the conveying channel 12 installed at the position of the carbon washing tank body 5.

[0046] In other words, baffle 7 can prevent activated carbon from accumulating at the bottom of the tank and creating excessive pressure, which could block the carbon outlet and affect the discharge of activated carbon. Baffle 7 is similar to an arc-shaped plate and can cover a large area.

[0047] In this embodiment, the activated carbon column includes an activated carbon column tank 17 and a filter plate 13. The filter plate 13 is disposed inside the activated carbon column tank 17, and the height of the filter plate 13 is higher than the height of the conveying channel 12 installed at the position of the activated carbon column tank 17.

[0048] With the above setup, the activated carbon delivered from the carbon washing tank 5 is located below the filter plate 13. After the activated carbon in the activated carbon column tank finishes adsorbing and removing oil, the adsorbed liquid can enter the area above the filter plate 13 through the filter plate 13, while the activated carbon is always located below the filter plate 13, which facilitates the discharge of the adsorbed liquid.

[0049] To facilitate the removal of impurities, in this embodiment, the activated carbon column tank 17 is provided with a cleaning port 16, the height of which is lower than the height of the filter plate 13. Thus, impurities below the filter plate 13 can be removed through the cleaning port 16.

[0050] In this embodiment, the top of the activated carbon column tank 17 is provided with a liquid outlet 14 and a second exhaust port 15. The liquid outlet 14 is used to discharge the adsorbed liquid. The second exhaust port 15 can adjust the gas pressure inside the activated carbon column tank 17.

[0051] Typically, during the process of conveying activated carbon from the carbon washing tank 5 to the activated carbon column tank 17, the second exhaust port 15 is kept open to maintain normal pressure in the activated carbon column tank 17, thus preventing the pressure inside the activated carbon column tank 17 from rising and affecting the adsorption effect of the activated carbon.

[0052] In this embodiment, an inlet 18 is provided in the middle and / or bottom of the activated carbon column tank 17. The inlet 18 is used as the inlet for the pre-adsorption liquid. That is, after the liquid to be adsorbed and degreased enters from the inlet 18, it flows upward and is adsorbed and degreased after passing through the activated carbon. During the upward process, due to the presence of the filter plate 13, the liquid after adsorption and degreased flows upward through the filter plate 13, while the activated carbon remains below the filter plate 13.

[0053] In this embodiment, the bottom of the activated carbon column tank 17 is provided with a bottom drain port 21. During the suction process, the bottom drain port 21 is generally kept open, allowing the water in the mixture of activated carbon and water that has entered the activated carbon column tank 17 to flow out, thereby leaving solid activated carbon.

[0054] In order to facilitate the discharge of activated carbon from the activated carbon column tank 17, in this embodiment, the activated carbon column also includes a discharge channel. One end of the discharge channel is connected to the bottom of the activated carbon column tank 17. A second compressed air valve 20 is provided on the discharge channel. The second compressed air valve 20 is used to connect compressed air, thereby using the pressure difference to extract the activated carbon from the activated carbon column tank 17.

[0055] In this embodiment, a second control valve 22 is also provided on the discharge channel. The second control valve 22 can be, for example, an electric valve. Alternatively, a solenoid valve, a manual valve, etc., can also be used.

[0056] Normally, during the adsorption and oil removal process, the second control valve 22 remains closed. When activated carbon needs to be discharged, i.e., when the activated carbon is saturated, the second control valve 22 and the second compressed air valve 20 are usually opened to discharge the waste activated carbon from the activated carbon column tank 17. This discharge principle is similar to the principle by which the conveying channel 12 discharges activated carbon from the carbon washing tank 5 to the activated carbon column tank 17.

[0057] In addition, in this embodiment, the activated carbon column also includes a conical baffle 19, which is disposed inside the activated carbon column tank 17 and located at the bottom of the activated carbon column tank 17. The height of the conical baffle 19 is higher than the height at which the discharge channel is installed in the activated carbon column tank 17, so as to reduce the packing density of activated carbon at the bottom of the activated carbon column tank 17.

[0058] The conical baffle 19 can reduce the density of activated carbon at the bottom of the activated carbon column tank 17, thereby facilitating the discharge of activated carbon after adsorption saturation.

[0059] For example, the diameter of the conical baffle 19 can be approximately 0.9 times the inner diameter of the activated carbon column canister 17, and the taper can be ≥45 degrees.

[0060] In some embodiments, the pipe diameter of the conveying channel 12 and the discharge channel can be 32mm to 50mm, and the length can be 500mm to 2000mm. The dimensions of the conveying channel 12 and the discharge channel can be the same or different, depending on factors such as the tank capacity and required replacement time.

[0061] In some embodiments, the compressed air pressure connected to the first and second compressed air valves can be between 0.1 MPa and 0.4 MPa. The compressed air pressures connected to the first and second compressed air valves can be the same or different.

[0062] In this embodiment, the first compressed air valve is located upstream of the first control valve 10, thereby closing the first control valve 10 and opening the first compressed air valve. Compressed air can then be introduced into the carbon washing tank 5 through the conveying channel 12. The compressed air can backflushed the carbon-water mixture in the carbon washing tank 5, ensuring thorough mixing of the activated carbon and water, and preventing the activated carbon from settling at the bottom of the carbon washing tank 5, which would affect the discharge effect of the activated carbon. Similarly, the second compressed air valve is also located upstream of the second control valve 22, and its backflushing principle is similar.

[0063] As described above, the working principle of the integrated oil removal system provided in this embodiment includes:

[0064] In the carbon washing tank, with the inlet 9 at the bottom, the washing solution enters from the bottom and exits from the top. As the solution flows upwards, gravity allows it to fully penetrate the activated carbon layer, preventing short-circuiting. Combined with the stirring motor 2 and the stirring paddle 6, the activated carbon is slowly agitated, accelerating the reaction rate between impurities such as iron and potassium ions and the acid washing solution, thereby improving the washing efficiency. The waste liquid after washing can be recycled using a circulation tank as needed.

[0065] A conveying channel 12 is provided between the carbon washing tank 5 and the activated carbon column tank 17. The conveying channel 12 is equipped with a first control valve 10 and a first compressed air valve. When it is necessary to transfer the activated carbon from the carbon washing tank 5 to the activated carbon column tank 17, a certain proportion (e.g., a solid-liquid ratio of 1:1.5) of water is pre-injected into the carbon washing tank 5. By introducing compressed air at a certain pressure (e.g., 0.1MPa-0.4MPa) towards the channel outlet, a negative pressure is created at the channel outlet, thereby discharging the mixture of activated carbon and water from the carbon washing tank 5 under the action of the pressure difference. The principle for discharging saturated activated carbon from the activated carbon column tank 17 is similar.

[0066] As an example, the operation steps of the integrated oil removal system provided in this embodiment may include:

[0067] Step 1: Activated carbon from the discharge channel or other sources enters the carbon washing tank 5 through the carbon inlet 1. Acid solution is introduced into the carbon washing tank 5 through the acid inlet 3. The first exhaust port 4 is opened, while the waste liquid outlet 8, water inlet 9, first compressed air valve, and first control valve 10 are kept closed. The stirring motor 2 is started, thereby driving the stirring paddle 6 to stir the mixture of activated carbon and water in the carbon washing tank 5.

[0068] Step 2: After the activated carbon washing process is completed, open the waste liquid outlet 8. After the waste liquid is discharged, open the water inlet 9 to input pure water and repeatedly rinse the activated carbon in the carbon washing tank 5, and then discharge it through the waste liquid outlet 8.

[0069] Step 3: Based on the cleaned activated carbon obtained in Step 2, pure water can now be added to the carbon washing tank 5 through inlet 9 to form a carbon-water mixture. The amount of water is determined based on the tank capacity and the amount of activated carbon.

[0070] Step 4: When activated carbon is needed in the activated carbon tank, open the first control valve 10 and the first compressed air valve. Use compressed air to transport the mixture of activated carbon and water in the carbon washing tank 5 to the activated carbon column tank 17. Due to the presence of the baffle 7, no transport blockage will occur. At this time, the second exhaust port 15 is generally opened to maintain normal pressure in the activated carbon column tank 17 for easy transport. At the same time, the bottom drain port 21 is opened to drain the water in the mixture, leaving the activated carbon above the conical baffle 19.

[0071] Step 5: The liquid to be adsorbed and degreased is transported to the activated carbon column tank 17 through the liquid inlet 18. At this time, the bottom drain 21, the second control valve 22, and the second compressed air valve are all closed. As the liquid flows upward, it completes the adsorption and degreasing process under the action of activated carbon. The waste liquid passes through the filter plate 13 and is discharged from the liquid outlet 14, while some impurities are discharged from the cleaning port 16.

[0072] Step 6: After the activated carbon in the activated carbon column tank 17 is saturated with adsorption, the second control valve 22 and the second compressed air valve can be opened to discharge the mixture of activated carbon and water in the activated carbon column tank 17 by compressed air, for example, circulating it to the carbon washing tank 5 through the carbon inlet 1.

[0073] Through the above steps, activated carbon can be automatically replaced without manual intervention, enabling continuous production. Simultaneously, by eliminating the need for personnel to enter the tank, safety is improved, labor intensity is reduced, efficiency is increased, and the high efficiency and environmental protection requirements of modern industrial production are met.

[0074] Furthermore, it should be noted that the above steps are not strictly sequential and can be performed simultaneously. For example, the carbon washing process in the carbon washing tank and the adsorption and oil removal process in the activated carbon column can be performed simultaneously or sequentially; for example, steps one and five can be performed simultaneously, or steps one can be performed first and then steps five, or steps five can be performed first and then steps one.

[0075] In conclusion, the integrated oil removal system provided in this embodiment has at least the following advantages:

[0076] (1) High carbon washing efficiency: The design of stirring motor 2, stirring paddle 6 and water inlet 9 located at the bottom can improve carbon washing efficiency.

[0077] (2) Enhanced safety: The air-lift principle is used to replace activated carbon, avoiding direct contact between operators and saturated activated carbon. This eliminates or reduces the risk of poisoning, corrosive injury, or mechanical injury to operators caused by traditional manual carbon replacement, thus eliminating health risks caused by manual operation at the source. At the same time, since the entire process does not require manual entry into the tank, the risk of accidental injury is also avoided.

[0078] (3) Reduced labor intensity: The high degree of automation, through the air-lift principle, enables the automatic discharge and replenishment of activated carbon, greatly reducing the labor intensity of manual activated carbon replacement. At the same time, since the entire process does not require manual operation, it also improves work efficiency, reduces costs, and solves the problems of high labor intensity, high cost, and low efficiency of traditional manual carbon replacement.

[0079] (4) Stable adsorption effect: The bottom baffle 7, conical baffle 19, first compressed air valve and second compressed air valve can effectively prevent the activated carbon from accumulating at the bottom and causing excessive pressure to block the outlet. At the same time, compressed air can be introduced into the tank to backflush the mixture of activated carbon and water in the tank, so that the activated carbon and water in the tank are fully mixed, preventing the activated carbon from settling at the bottom of the tank, thus ensuring the discharge effect of activated carbon and ensuring the stable operation of the adsorption process.

[0080] (5) Enhanced environmental friendliness: The entire carbon swapping process is carried out in a closed environment, which avoids the leakage of harmful substances, reduces environmental pollution, and improves environmental friendliness.

[0081] In summary, compared with existing technologies, the integrated oil removal system provided by this utility model not only improves safety, environmental protection and economy, carbon washing efficiency, labor efficiency and adsorption effect stability, but also improves environmental protection, making it an ideal activated carbon carbon exchange system.

[0082] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A canister, characterized in that, The carbon washing tank comprises a carbon washing tank body and a conveying channel; one end of the conveying channel is communicated with the bottom of the carbon washing tank body, and the other end of the conveying channel is used for being communicated with the top of the activated carbon column; a first compressed air valve is arranged on the conveying channel, and the first compressed air valve is used for connecting compressed air to suck the carbon water mixture in the carbon washing tank body to the activated carbon column by using pressure difference.

2. The canister according to claim 1, wherein The carbon washing tank further comprises a stirring motor and a stirring paddle; the stirring motor is installed on the carbon washing tank body, and the stirring paddle is arranged in the carbon washing tank body and connected with the stirring motor.

3. The canister of claim 1, wherein The top of the carbon washing tank body is provided with a carbon inlet, an acid inlet and a first exhaust port; the bottom of the carbon washing tank body is provided with a waste liquid outlet. The bottom of the carbon washing tank body is further provided with a water inlet, and the height of the water inlet is lower than the height of the conveying channel installed at the position of the carbon washing tank body. The conveying channel is further provided with a first control valve.

4. The canister according to any one of claims 1 to 3, characterized in that The carbon washing tank further comprises a baffle, which is arranged in the carbon washing tank body; the baffle is arranged at the bottom of the carbon washing tank, and the height of the baffle is higher than the height of the conveying channel installed at the position of the carbon washing tank body.

5. An integrated oil removal system characterized by, The carbon washing tank comprises a carbon washing tank body and a conveying channel; one end of the conveying channel is communicated with the bottom of the carbon washing tank body, and the other end of the conveying channel is used for being communicated with the top of the activated carbon column; a first compressed air valve is arranged on the conveying channel, and the first compressed air valve is used for connecting compressed air to suck the carbon water mixture in the carbon washing tank body to the activated carbon column by using pressure difference.

6. The integrated oil removal system of claim 5, wherein, The activated carbon column comprises an activated carbon column body and a filter plate; the filter plate is arranged in the activated carbon column body, and the height of the filter plate is higher than the height of the conveying channel installed at the position of the activated carbon column body.

7. The integrated oil removal system of claim 6, wherein The activated carbon column body is provided with a debris removal port, and the height of the debris removal port is lower than the height of the filter plate.

8. The integrated oil removal system of claim 6, wherein, The top of the activated carbon column body is provided with a liquid outlet and a second exhaust port. The middle and / or bottom of the activated carbon column body is provided with a liquid inlet. The bottom of the activated carbon column body is provided with a bottom liquid outlet.

9. The integrated oil removal system of claim 6, wherein, The activated carbon column further comprises a discharge channel; one end of the discharge channel is communicated with the bottom of the activated carbon column body; and a second compressed air valve is arranged on the discharge channel, and the second compressed air valve is used for connecting compressed air.

10. The integrated oil removal system of claim 9, wherein The activated carbon column further comprises a conical cover; the conical cover is arranged in the activated carbon column body; the conical cover is arranged at the bottom of the activated carbon column body; and the height of the conical cover is higher than the height of the discharge channel installed at the position of the activated carbon column body.

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