Process for refining oil product by adopting fixed bed adsorption

Abstract

The invention discloses a process adopting fixed bed adsorption for oil refining, and belongs to the technical field of oil refining processing, the process comprises a refining pool, a filter screen plate is fixed on the inner side wall of the refining pool, a cleaning assembly is arranged on the side surface of the top end of the filter screen plate, a plurality of second circulation ports are formed in the side surface of a lower partition plate, and a partition assembly is arranged above the lower partition plate; the first discharge pipe and the second discharge pipe are both communicated with the interior of the refining pool and are both provided with valves, and a pushing assembly is arranged at the bottom of the refining pool; the bottom surface of oil-water mixed liquid is pushed through the pushing assembly to adjust the position of an oil-water interface, and then the multiple second circulation openings in the lower partition plate face are closed through the partition assembly, so that oil and water are mutually closed and isolated, oil-water separation operation is convenient, the structure is simple, and the cost is low. And scum and large solid impurities accumulated on the side face of the top end of the filter screen plate can be pushed, swept and cleaned through the cleaning assembly, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of oil refining and processing, and in particular relates to a process for oil refining using fixed bed adsorption. Background Art

[0002] The fixed bed adsorption technology used in oil refining is an advanced separation technology, which is widely used in petrochemical, environmental protection and other fields. This technology uses the adsorption effect of adsorbents to separate and purify different components in oil products. In the process of oil refining, oil-water separation mainly involves two aspects: one is to separate and remove the water in the feed to avoid affecting the subsequent process; the other is to separate and remove the water in the reaction product to improve the quality and stability of the product. Commonly used oil-water separation methods include gravity separation, centrifugal separation, adsorption separation, etc. Among them, gravity separation is a method of separation using the different densities of oil and water, which is suitable for separating low-concentration oil-water emulsions; centrifugal separation is a method of separating oil and water using centrifugal force, which is suitable for processing high-concentration oil-water emulsions; adsorption separation is a method of separating oil and water using the adsorption effect of adsorbents, which is suitable for processing oil products mixed with multiple components.

[0003] In the oil refining process, the effect of oil-water separation has an important impact on product quality and production efficiency. When fixed bed adsorption technology is used in oil refining, oil-water separation is one of the important process links. Through reasonable control measures, production efficiency and product quality can be improved. In the existing technology, oil pollution is mainly adsorbed and removed by moving oil absorption belts, which is more suitable for mixed liquids with less oil content. However, when separating oil from mixed liquids with high oil content, the oil-water separation efficiency is low, the structure is more complicated, and the cost is higher.

[0004] Therefore, a process for oil refining using fixed bed adsorption is needed to solve the problem that the existing technology mainly uses a moving oil absorption belt to absorb and remove oil contaminants. It is more suitable for mixed liquids with low oil content, but when separating oil from mixed liquids with high oil content, the oil-water separation efficiency is low, the structure is more complicated, and the cost is higher. Summary of the invention

[0005] The object of the present invention is to provide a process for oil refining using fixed bed adsorption to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a process for oil refining using fixed bed adsorption, wherein the oil refining using fixed bed adsorption process is based on a refining pool and comprises the following steps:

[0007] S1, putting the oil-water mixture into the refining tank through the top opening of the refining tank, so that the oil-water mixture is statically precipitated in the refining tank, and the precipitate is adsorbed by the push plate;

[0008] S2. According to the position of the interface between oil and water in the oil-water mixture, the threaded rod is rotated, and the threaded rod pushes the push plate to move upward, and the push plate pushes the bottom surface of the oil-water mixture to adjust the position of the oil-water interface, so that the oil-water interface moves to a height aligned with the lower partition plate;

[0009] S3, the output end of the motor drives the incomplete gear to rotate, thereby driving the sealing plate to move through the cooperation of the incomplete gear and the round rack plate, and when the first flow port and the second flow port are completely misaligned, the sealing plate closes the multiple second flow ports on the lower baffle surface, so that the oil and water are mutually sealed and isolated, and then the valves on the first discharge pipe and the second discharge pipe are opened, so that the upper layer of oil and the lower layer of water are discharged through the first discharge pipe and the second discharge pipe respectively;

[0010] S4. The output end of the starting motor drives the driving gear to rotate back and forth in both directions, thereby driving the slide bar to move back and forth through the cooperation of the driving gear and the rack plate, and then driving the push plate to move on the top side of the filter plate through the slide bar, so that the scum and larger solid impurities accumulated on the top side of the filter plate are pushed and swept away by the push plate, thereby removing the scum and larger solid impurities.

[0011] It should be noted in the scheme that a filter plate is fixed on the inner wall of the refining tank, the filter plate is located at the top of the refining tank, a cleaning assembly is arranged on the top side of the filter plate, a lower partition plate located below the filter plate is fixed on the inner wall of the refining tank, a plurality of second flow ports are opened on the side of the lower partition plate, a partition assembly is arranged above the lower partition plate, a first discharge pipe located between the lower partition plate and the filter plate is fixed on the side of the refining tank, a second discharge pipe located below the lower partition plate is fixed on the side of the refining tank, both the first discharge pipe and the second discharge pipe are connected to the inside of the refining tank and valves are installed on the first discharge pipe and the second discharge pipe, and a pushing assembly is arranged at the bottom of the refining tank.

[0012] It should be noted in the scheme that the cleaning assembly includes a sliding rod that slides through the side wall of the refining tank, a rack plate arranged along the length direction of the sliding rod is fixed on the side of the bottom end of the sliding rod, a push plate is fixed on one end of the sliding rod located inside the refining tank, a driving motor is fixed on the outer wall of the refining tank, and a driving gear meshing with the rack plate is fixed on the output end of the driving motor.

[0013] It is further worth mentioning that a cleaning brush is fixed on the side surface of the bottom end of the push plate, and the cleaning brush is in contact with the side surface of the top end of the filter plate.

[0014] It should be further explained that the partition assembly includes a sealing plate that slides in contact with the top side of the lower partition plate, a first flow opening arranged corresponding to the second flow opening is opened on the side of the sealing plate, a sliding rod that slides through the side wall of the refining tank is fixed to one end of the sealing plate, a circular rack plate is fixed to the end of the sliding rod located outside the refining tank, a motor is fixed to the outer wall of the refining tank, and an incomplete gear that meshes with the circular rack plate is fixed to the output end of the motor.

[0015] As a preferred embodiment, the push assembly includes a push plate arranged at the bottom of the refining tank, a threaded rod is rotatably connected to the side surface of the bottom end of the push plate, and a joint plate is fixed to the bottom end of the threaded rod.

[0016] As a preferred embodiment, rubber rings are fitted and fixed on the four sides of the push plate, a handle bar is fixed on the side of the joint plate, and a rubber sleeve is fitted on the surface of the handle bar.

[0017] As a preferred embodiment, a discharge port is opened on the side of the refining tank, a cover plate is hinged in the discharge port, and a handle is fixed on the side of the cover plate.

[0018] As a preferred embodiment, a mounting plate is fixed on the outer wall of the refining tank, the motor is fixed on the top side of the mounting plate, a plurality of symmetrically distributed outrigger rods are fixed on the bottom side of the refining tank, and a bottom plate is commonly fixed to the bottom ends of the plurality of outrigger rods.

[0019] Compared with the prior art, the present invention provides a process for oil refining using fixed bed adsorption, which has at least the following beneficial effects:

[0020] (1) The bottom surface of the oil-water mixture is pushed by the push assembly to adjust the position of the oil-water interface, so that the oil-water interface moves to a height aligned with the lower baffle, and then the plurality of second flow openings on the lower baffle are closed by the partition assembly, so that the oil and water are closed and isolated from each other, and then the valves on the first discharge pipe and the second discharge pipe are opened, so that the upper layer of oil and the lower layer of water are discharged through the first discharge pipe and the second discharge pipe respectively, thereby completing the separation of oil and water. The oil-water separation operation is convenient, and the oil-water separation is more thorough, the structure is simpler, and the cost is lower.

[0021] (2) The mixed liquid is filtered through the filter plate, and the scum floats up and the larger solid impurities are intercepted and retained on the top side of the filter plate. The scum and larger solid impurities accumulated on the top side of the filter plate can be pushed and swept clean by the cleaning component, thereby removing the scum and larger solid impurities, effectively improving the convenience of cleaning the scum and larger solid impurities and improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the method flow of the present invention;

[0023] Figure 2 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 3 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0025] Figure 4 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0026] Figure 5 It is a schematic diagram of the partial structure of the cleaning component of the present invention;

[0027] Figure 6 It is a schematic diagram of the local structure of the partition assembly of the present invention;

[0028] Figure 7 It is a schematic diagram of the partial structure of the push assembly of the present invention;

[0029] Figure 8 for Figure 7 Enlarged structural diagram at A in the middle.

[0030] In the figure: 1. cleaning component; 101. push plate; 102. cleaning brush; 103. slide rod; 104. rack plate; 105. driving gear; 2. partition component; 201. sealing plate; 202. first flow port; 203. circular rack plate; 204. slide rod; 3. push assembly; 301. threaded rod; 302. joint plate; 303. handle rod; 304. push plate; 305. rubber ring; 4. refining tank; 5. motor; 6. mounting plate; 7. support leg rod; 8. bottom plate; 9. discharge port; 10. cover plate; 11. handle; 12. filter plate; 13. first discharge pipe; 14. second discharge pipe; 15. second flow port; 16. lower partition. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the embodiments.

[0032] See also Figure 1-8 The present invention provides a process for oil refining using fixed bed adsorption, wherein the oil refining using fixed bed adsorption process is based on a refining pool 4 and comprises the following steps:

[0033] S1, pouring the oil-water mixture into the refining tank 4 through the top opening of the refining tank 4, so that the oil-water mixture is statically precipitated in the refining tank 4, and the precipitate is adsorbed by the push plate 304;

[0034] S2. According to the position of the interface between oil and water in the oil-water mixture, the threaded rod 301 is rotated, and the threaded rod 301 pushes the push plate 304 to move upward, and the push plate 304 pushes the bottom surface of the oil-water mixture to adjust the position of the oil-water interface, so that the oil-water interface moves to a height aligned with the lower partition plate 16;

[0035] S3, the output end of the motor 5 drives the incomplete gear to rotate, thereby driving the sealing plate 201 to move through the cooperation of the incomplete gear and the circular rack plate 203. When the first flow opening 202 and the second flow opening 15 are completely misaligned, the sealing plate 201 closes the multiple second flow openings 15 on the surface of the lower partition plate 16, so that the oil and water are mutually sealed and isolated, and then the valves on the first discharge pipe 13 and the second discharge pipe 14 are opened, so that the upper layer of oil and the lower layer of water are discharged through the first discharge pipe 13 and the second discharge pipe 14 respectively;

[0036] S4. The output end of the starting motor drives the driving gear 105 to rotate back and forth in both directions, thereby driving the slide bar 103 to move back and forth through the cooperation of the driving gear 105 and the rack plate 104, and then driving the push plate 101 to move on the top side of the filter plate 12 through the slide bar 103, so that the scum and larger solid impurities accumulated on the top side of the filter plate 12 are pushed and swept away by the push plate 101, thereby removing the scum and larger solid impurities.

[0037] Further as Figure 1 , Figure 2 and Figure 3As shown, it is worth specifically explaining that a filter plate 12 is fixed on the inner wall of the refining tank 4, the filter plate 12 is located at the top of the refining tank 4, a cleaning component 1 is arranged on the top side of the filter plate 12, a lower partition 16 is fixed on the inner wall of the refining tank 4 and is located below the filter plate 12, a plurality of second flow ports 15 are opened on the side of the lower partition 16, a partition component 2 is arranged above the lower partition 16, a first discharge pipe 13 is fixed on the side of the refining tank 4 and is located between the lower partition 16 and the filter plate 12, and a first discharge pipe 13 is fixed on the side of the refining tank 4 and is located at The second discharge pipe 14 below the lower partition 16, the first discharge pipe 13 and the second discharge pipe 14 are all connected to the interior of the refining tank 4 and valves are installed on the first discharge pipe 13 and the second discharge pipe 14. The bottom of the refining tank 4 is provided with a push assembly 3. When in use, the oil-water mixed liquid is put into the interior of the refining tank 4 through the top opening of the refining tank 4, so that the oil-water mixed liquid is allowed to settle in the refining tank 4, and the sediment is adsorbed by the push assembly 3. Initially, the second flow port 15 is in an open state. After a period of sedimentation, the oil The density is smaller than that of water, so it floats above the water surface. According to the position of the interface between oil and water in the oil-water mixture, the bottom surface of the oil-water mixture is pushed by the push component 3 to adjust the position of the oil-water interface, so that the oil-water interface moves to a height aligned with the lower partition 16, and then the plurality of second flow ports 15 on the surface of the lower partition 16 are closed by the partition component 2, so that the oil and water are closed and isolated from each other, and then the valves on the first discharge pipe 13 and the second discharge pipe 14 are opened, so that the upper layer of oil and the lower layer of water are discharged through the first discharge pipe 13 and the second discharge pipe 14 respectively. The outlet pipe 14 is used for discharge to complete the separation of oil and water. The oil-water separation operation is convenient and the oil-water separation is relatively thorough. The structure is relatively simple and the cost is relatively low. The mixed liquid is filtered by the filter plate 12, and the scum floats and larger solid impurities are intercepted and retained on the top side of the filter plate 12. The scum and larger solid impurities accumulated on the top side of the filter plate 12 can be pushed and swept clean by the cleaning component 1, thereby removing the scum and larger solid impurities, effectively improving the convenience of cleaning the scum and larger solid impurities and improving the cleaning efficiency.

[0038] Further Figure 1 , Figure 2 and Figure 4As shown, it is worth specifically explaining that the cleaning component 1 includes a slide bar 103 that slides through the side wall of the refining tank 4, a rack plate 104 arranged along the length direction of the slide bar 103 is fixed on the bottom side of the slide bar 103, a push plate 101 is fixed on one end of the slide bar 103 located inside the refining tank 4, a driving motor is fixed on the outer wall of the refining tank 4, and a driving gear 105 meshingly connected with the rack plate 104 is fixed on the output end of the driving motor; the mixed liquid is filtered through the filter plate 12, and the floating scum and larger solid impurities are intercepted and retained on the top side of the filter plate 12, and the floating scum and larger solid impurities are filtered. When impurities are to be cleaned, the drive motor is started to work, and the output end of the starting motor drives the drive gear 105 to rotate back and forth in both directions, thereby driving the slide bar 103 to move back and forth through the cooperation of the drive gear 105 and the rack plate 104, and then driving the push plate 101 to move on the top side of the filter plate 12 through the slide bar 103, so that the scum and larger solid impurities accumulated on the top side of the filter plate 12 are pushed and swept by the push plate 101, thereby removing the scum and larger solid impurities, effectively improving the convenience of cleaning the scum and larger solid impurities, and improving the cleaning efficiency.

[0039] Further Figure 4 As shown, it is worth explaining in detail that a cleaning brush 102 is fixed on the bottom side of the push plate 101, and the cleaning brush 102 is in contact with the top side of the filter plate 12; during specific operation, when the push plate 101 moves back and forth, the push plate 101 drives the cleaning brush 102 to brush and clear the filter holes on the filter plate 12, eliminating the operation of manual cleaning of the filter plate 12, and effectively improving the overall cleaning efficiency.

[0040] Further Figure 1 , Figure 3 and Figure 5As shown, it is worth explaining in detail that the partition assembly 2 includes a sealing plate 201 that slides in contact with the top side of the lower partition 16, and a first flow port 202 arranged corresponding to the second flow port 15 is opened on the side of the sealing plate 201. A sliding rod 204 that slides through the side wall of the refining tank 4 is fixed at one end of the sealing plate 201, and a circular rack plate 203 is fixed on the end of the sliding rod 204 located outside the refining tank 4. A motor 5 is fixed on the outer wall of the refining tank 4, and an incomplete gear that meshes with the circular rack plate 203 is fixed on the output end of the motor 5. When working, the motor 5 is started to work, and the output end of the motor 5 drives The incomplete gear rotates, thereby driving the sealing plate 201 to move through the cooperation of the incomplete gear and the circular rack plate 203. When the first flow port 202 and the second flow port 15 are completely misaligned, the sealing plate 201 closes the multiple second flow ports 15 on the lower partition 16, so that the oil and water are sealed and isolated from each other, and then the valves on the first discharge pipe 13 and the second discharge pipe 14 are opened, so that the upper layer of oil and the lower layer of water are discharged through the first discharge pipe 13 and the second discharge pipe 14 respectively, completing the separation of oil and water. The oil-water separation operation is convenient, and the oil-water separation is more thorough, the structure is simpler, and the cost is lower.

[0041] Further as Figure 3 , Figure 6 and Figure 7 As shown, it is worth specifically explaining that the push assembly 3 includes a push plate 304 arranged at the bottom of the refining tank 4, and a threaded rod 301 is rotatably connected to the side surface of the bottom end of the push plate 304, and a joint plate 302 is fixed to the bottom end of the threaded rod 301; during specific operation, the oil-water mixed liquid is put into the refining tank 4 through the top opening of the refining tank 4, so that the oil-water mixed liquid is statically precipitated inside the refining tank 4, and the precipitate is adsorbed by the push plate 304. Initially, the second flow port 15 is in an open state. After a period of precipitation, the density of oil is smaller than that of water, so it floats above the water surface. According to the position of the interface between oil and water in the oil-water mixed liquid, by rotating the threaded rod 301, the threaded rod 301 pushes the push plate 304 to move upward, and the bottom surface of the oil-water mixed liquid is pushed by the push plate 304 to adjust the position of the oil-water interface, so that the oil-water interface moves to a height aligned with the lower partition 16.

[0042] The scheme has the following working process: the oil-water mixture is put into the refining tank 4 through the top opening of the refining tank 4, so that the oil-water mixture is statically precipitated inside the refining tank 4, and the sediment is adsorbed by the push plate 304. After a period of sedimentation, the density of the oil is smaller than that of water, so it floats above the water surface. According to the position of the interface between the oil and water in the oil-water mixture, the threaded rod 301 is rotated, and the threaded rod 301 pushes the push plate 304 to move upward, and the bottom surface of the oil-water mixture is pushed by the push plate 304 to adjust the position of the oil-water interface, so that the oil-water interface moves to a height aligned with the lower partition 16, and the motor 5 is started to work. The output end of the motor 5 drives the incomplete gear to rotate, thereby driving the sealing plate 201 to move through the cooperation of the incomplete gear and the circular rack plate 203. When the first flow port 202 and the second flow port 15 are completely misaligned, the sealing plate 201 is used to seal the multiple second flow ports on the surface of the lower partition 16. The flow port 15 is opened, so that the oil and water are sealed and isolated from each other, and then the valves on the first discharge pipe 13 and the second discharge pipe 14 are opened, so that the upper layer of oil and the lower layer of water are discharged through the first discharge pipe 13 and the second discharge pipe 14 respectively, completing the separation of oil and water, and filtering the mixed liquid through the filter plate 12, the scum floats up and the larger solid impurities are intercepted and stay on the top side of the filter plate 12. When cleaning the scum and the larger solid impurities, start the drive motor to work, and the output end of the starter motor drives the drive gear 105 to rotate back and forth in both directions, so that the slide bar 103 is driven to reciprocate through the cooperation of the drive gear 105 and the rack plate 104, and then the push plate 101 is driven to move on the top side of the filter plate 12 through the slide bar 103, so that the scum and the larger solid impurities accumulated on the top side of the filter plate 12 are pushed and swept by the push plate 101, thereby removing the scum and the larger solid impurities.

[0043] Further as Figure 6 As shown, it is worth explaining in detail that rubber rings 305 are fixed on the four sides of the push plate 304, a handle rod 303 is fixed on the side of the joint plate 302, and a rubber sleeve is fitted on the surface of the handle rod 303; during specific work, the rubber ring 305 is effectively used to improve the sealing performance of the push plate 304 when pushing the liquid, and the handle rod 303 is used to facilitate the rotation of the threaded rod 301, the handle rod 303 has a longer force arm, and the operation is labor-saving.

[0044] Further as Figure 1 As shown, it is worth explaining in detail that a discharge port 9 is opened on the side of the refining tank 4, a cover plate 10 is hinged in the discharge port 9, and a handle 11 is fixed on the side of the cover plate 10; during specific work, when cleaning impurities on the top side of the filter plate 12, the cover plate 10 is opened to facilitate the cleaning of impurities through the discharge port 9.

[0045] Further Figure 1 , Figure 2 and Figure 3 As shown, it is worth explaining in detail that a mounting plate 6 is fixed on the outer wall of the refining tank 4, the motor 5 is fixed on the top side of the mounting plate 6, a plurality of symmetrically distributed supporting leg rods 7 are fixed on the bottom side of the refining tank 4, and a bottom plate 8 is commonly fixed to the bottom ends of the plurality of supporting leg rods 7.

[0046] In summary: the bottom surface of the oil-water mixture is pushed by the pushing component 3 to adjust the position of the oil-water interface, so that the oil-water interface moves to a height aligned with the lower partition 16, and then the multiple second flow ports 15 on the surface of the lower partition 16 are closed by the partition component 2, so that the oil and water are closed and isolated from each other, and then the valves on the first discharge pipe 13 and the second discharge pipe 14 are opened, so that the upper layer of oil and the lower layer of water are discharged through the first discharge pipe 13 and the second discharge pipe 14 respectively, to complete the separation of oil and water, the oil-water separation operation is convenient, and the oil-water separation is more thorough, the structure is simpler, and the cost is lower. The mixed liquid is filtered by the filter plate 12, and the scum floats and larger solid impurities are intercepted and retained on the top side of the filter plate 12. The cleaning component 1 can push and sweep the scum and larger solid impurities accumulated on the top side of the filter plate 12, so that the scum and larger solid impurities are removed, effectively improving the convenience of cleaning the scum and larger solid impurities, and improving the cleaning efficiency.

Claims

1. A process for oil refining using fixed bed adsorption, characterized in that: The oil refining adopts a fixed bed adsorption process based on a refining tank (4), and includes the following steps: S1, pouring the oil-water mixture into the refining tank (4) through the top opening of the refining tank (4), so that the oil-water mixture is allowed to settle in the refining tank (4), and the sediment is adsorbed by the push plate (304); S2, according to the position of the interface between oil and water in the oil-water mixture, the threaded rod (301) is rotated, the threaded rod (301) pushes the push plate (304) to move upward, and the push plate (304) pushes the bottom surface of the oil-water mixture to adjust the position of the oil-water interface, so that the oil-water interface moves to a height aligned with the lower partition plate (16); S3, the output end of the motor (5) drives the incomplete gear to rotate, thereby driving the sealing plate (201) to move through the cooperation of the incomplete gear and the circular rack plate (203); when the first flow opening (202) and the second flow opening (15) are completely misaligned, the sealing plate (201) closes the plurality of second flow openings (15) on the surface of the lower partition (16), thereby isolating the oil and water from each other, and then opening the valves on the first discharge pipe (13) and the second discharge pipe (14), thereby discharging the upper layer of oil and the lower layer of water through the first discharge pipe (13) and the second discharge pipe (14), respectively; S4, the output end of the starter motor drives the driving gear (105) to rotate back and forth in both directions, thereby driving the slide bar (103) to move back and forth through the cooperation of the driving gear (105) and the rack plate (104), and then driving the push plate (101) to move on the top side of the filter plate (12) through the slide bar (103), so that the scum and larger solid impurities accumulated on the top side of the filter plate (12) are pushed and swept away by the push plate (101), thereby removing the scum and larger solid impurities.

2. The process for oil refining using fixed bed adsorption according to claim 1, characterized in that: A filter plate (12) is fixed on the inner wall of the refining tank (4), the filter plate (12) is located at the top of the refining tank (4), a cleaning assembly (1) is arranged on the top side of the filter plate (12), a lower partition (16) is fixed on the inner wall of the refining tank (4) and is located below the filter plate (12), a plurality of second flow openings (15) are opened on the side of the lower partition (16), a partition assembly (2) is arranged above the lower partition (16), and the refining tank (4) is provided with a plurality of second flow openings (15). A first discharge pipe (13) located between a lower baffle (16) and a filter plate (12) is fixed on the side of the refining tank (4); a second discharge pipe (14) located below the lower baffle (16) is fixed on the side of the refining tank (4); the first discharge pipe (13) and the second discharge pipe (14) are both connected to the interior of the refining tank (4); valves are installed on the first discharge pipe (13) and the second discharge pipe (14); a push assembly (3) is arranged at the bottom of the refining tank (4).

3. The process for oil refining using fixed bed adsorption according to claim 2, characterized in that: The cleaning assembly (1) comprises a sliding rod (103) which slides through the side wall of the refining tank (4); a rack plate (104) arranged along the length direction of the sliding rod (103) is fixed on the side surface of the bottom end of the sliding rod (103); a push plate (101) is fixed on one end of the sliding rod (103) located inside the refining tank (4); a driving motor is fixed on the outer wall of the refining tank (4); and a driving gear (105) meshingly connected with the rack plate (104) is fixed on the output end of the driving motor.

4. The process for oil refining using fixed bed adsorption according to claim 3, characterized in that: A cleaning brush (102) is fixed on the side surface of the bottom end of the push plate (101), and the cleaning brush (102) is in contact with the side surface of the top end of the filter plate (12).

5. The process for oil refining using fixed bed adsorption according to claim 2, characterized in that: The partition assembly (2) includes a sealing plate (201) that is slidably fitted with the top side of the lower partition (16); a first flow opening (202) arranged corresponding to the second flow opening (15) is opened on the side of the sealing plate (201); a sliding rod (204) that slides through the side wall of the refining tank (4) is fixed to one end of the sealing plate (201); a circular rack plate (203) is fixed to one end of the sliding rod (204) located outside the refining tank (4); a motor (5) is fixed to the outer wall of the refining tank (4); and an incomplete gear that meshes with the circular rack plate (203) is fixed to the output end of the motor (5).

6. The process for oil refining using fixed bed adsorption according to claim 5, characterized in that: The pushing assembly (3) comprises a pushing plate (304) arranged at the bottom of the refining tank (4), a threaded rod (301) being rotatably connected to the side surface of the bottom end of the pushing plate (304), and a joint plate (302) being fixed to the bottom end of the threaded rod (301).

7. The process for oil refining using fixed bed adsorption according to claim 5, characterized in that: A rubber ring (305) is fitted and fixed on the four sides of the push plate (304), a handle bar (303) is fixed on the side of the joint plate (302), and a rubber sleeve is fitted on the surface of the handle bar (303).

8. The process for oil refining using fixed bed adsorption according to claim 2, characterized in that: A discharge port (9) is provided on the side of the refining tank (4), a cover plate (10) is hinged inside the discharge port (9), and a handle (11) is fixed on the side of the cover plate (10).

9. The process for oil refining using fixed bed adsorption according to claim 5, characterized in that: A mounting plate (6) is fixed on the outer side wall of the refining tank (4), the motor (5) is fixed on the top side of the mounting plate (6), a plurality of symmetrically distributed outrigger rods (7) are fixed on the bottom side of the refining tank (4), and a bottom plate (8) is commonly fixed to the bottom ends of the plurality of outrigger rods (7).

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