A method and apparatus for adsorption of refined base oils

Abstract

This invention discloses an adsorption method and apparatus for refined base oil, relating to the field of base oil adsorption technology. The adsorption method proposed in this invention can solve the problem of poor color and short service life caused by the presence of small amounts of gums, asphaltenes, and residual carbon in base oil, without polluting the ecological environment. The adsorption apparatus proposed in this invention includes a reaction chamber; a rotating cylinder is rotatably installed inside the reaction chamber, with a threaded portion on the outer side of the cylinder. The cylinder has a hollow structure, and its interior is divided into two chambers for storing raw materials by a partition. A mixing rod is rotatably installed at the bottom of the cylinder, with its top end communicating with the two chambers. A filter element is vertically slidably installed inside the reaction chamber for quickly filtering precipitates. This adsorption apparatus can accelerate the removal of precipitated substances and improve adsorption efficiency.

Description

Technical Field

[0001] This invention relates to the field of base oil adsorption technology, and in particular to an adsorption method and apparatus for refined base oil. Background Technology

[0002] Base oils are extracted and refined from petroleum. During solvent refining, insufficient refining depth and external interference during processing and use can alter the original physical and chemical properties of the base oil. Therefore, supplementary refining is necessary. However, using sulfuric acid as a supplementary refining agent during this process generates large amounts of waste acid and hazardous waste, posing significant environmental problems. Furthermore, insufficient refining depth in base oil processing can lead to the formation of large amounts of gums and carbon deposits during use, affecting the lifespan of equipment. To address these issues, the inventors have developed an adsorption method for refined base oils that does not generate hazardous waste. This method solves the problem of poor color and short service life caused by small amounts of gums, asphaltenes, and residual carbon in base oils, without polluting the environment. In addition, based on this method, the inventors have proposed an adsorption device for refined base oils that can adsorb... During the process, the filtration speed of precipitation is effectively accelerated, the filtration effect on precipitation is good, and the precipitation can be effectively removed; Chinese Patent Publication No. CN107868673A discloses a refining method for lubricating oil base oil, which involves mixing and contacting lubricating oil base oil with an adsorbent at 70-210℃, and then filtering and separating; the main problem it solves is that activated clay or modified clay has a weak ability to remove oxygen-containing compounds in base oil and poor color improvement ability; that is, from the described technical solution, this method mainly improves the color of base oil, but does not remove the small amount of gum, asphalt, and carbon residue contained in the base oil; while the inventor, based on the technical problem of the small amount of gum, asphalt, and carbon residue contained in base oil, proposed a technical solution that can not only effectively improve the color of base oil, but also effectively remove the small amount of gum, asphalt, and carbon residue contained in base oil through multiple precipitation and filtration. Summary of the Invention

[0003] To address the aforementioned technical problems, the adsorption method proposed in this invention can solve the problem of poor color and short service life caused by the presence of small amounts of gums, asphaltenes, and residual carbon in base oils, without polluting the ecological environment; the adsorption device proposed in this invention can accelerate the removal of precipitated substances and improve adsorption efficiency.

[0004] The technical solution used in this invention is as follows: an adsorption method and apparatus for refined base oil, comprising a reaction chamber, a cleaning chamber disposed below the reaction chamber, a transport chamber connected to the outside of the reaction chamber, a temperature regulator for adjusting temperature and a vacuum device for vacuuming disposed at the top of the reaction chamber; a rotating cylinder is rotatably mounted inside the reaction chamber, the outer side of the rotating cylinder is provided with a threaded portion, the rotating cylinder has a hollow structure, and the interior of the rotating cylinder is divided into two chambers for storing raw materials by a partition; a mixing rod is rotatably mounted at the bottom end of the rotating cylinder, the top end of the mixing rod is connected to the two chambers; a discharge hole is provided on the mixing rod, through which the raw materials are released; a linkage disc is threadedly connected to the threaded portion, the linkage disc is provided with a locking hole, and an electromagnetic locking ring is provided at the locking hole; a filter element is vertically slidably mounted inside the reaction chamber for quickly filtering the sediment; the filter element includes a filter sleeve slidably connected to the inside of the reaction chamber, the filter sleeve... A filter plate is installed at the bottom. The inner side of the filter sleeve is slidably connected to the outer side of the rotating cylinder, and the upper part of the inner side of the filter sleeve forms a helical pair with the threaded part. A second transport pipe is connected to the filter plate and communicates with the transport box. The filter sleeve pushes the precipitate to the bottom of the reaction box, and the mixed liquid is pumped and transported to the transport box through the second transport pipe. A linkage slide is installed at the top of the filter sleeve. A fastening slide rod is connected to the circumference of the linkage slide and is slidably connected to the inner side of the reaction box. A squeezing seat is slidably installed on the fastening slide rod. A ball column is slidably installed on the linkage slide. One end of the ball column cooperates with the locking hole to make the filter element slide together with the linkage disc. A locking seat is slidably installed on the outer side of the reaction box. The locking seat is fastened to the fastening slide rod to fix the filter element. The squeezing seat pushes the locking seat to release the fixation of the filter element. A base is slidably fitted at the bottom of the reaction box. A cleaning rack for removing precipitate is movably installed on the base.

[0005] Furthermore, the transport box is connected to a transport pipe one, one end of which is connected to a transport pipe two, and a release hole is provided on the end of the transport pipe two facing the filter plate.

[0006] Furthermore, a matching electric cylinder is provided at the bottom outer side of the reaction chamber. The telescopic rod of the matching electric cylinder is fixedly connected to the base to control the sliding of the base. A mounting box is provided at the bottom of the base. A rotating electric cylinder is rotatably mounted inside the mounting box. A gear one is provided on the rotating electric cylinder. A cleaning motor is provided inside the mounting box. A gear two is connected to the output shaft of the cleaning motor. Gear two and gear one form a gear pair to drive the rotating electric cylinder to rotate. The telescopic rod of the rotating electric cylinder is fixedly connected to the cleaning frame. A slot for placing the cleaning frame is provided on the base. When the cleaning frame is located in the slot, the upper end surface of the cleaning frame is flush with the upper end surface of the base.

[0007] Furthermore, a sealed box is provided on the outside of the reaction chamber, the card holder is located inside the sealed box, and a spring connects the card holder to the outside of the reaction chamber.

[0008] Furthermore, a mixing motor for driving the rotating drum is provided at the top of the reaction chamber; a feed chute is also provided at the top of the rotating drum for feeding raw materials into the chamber; a transport pump is provided in the chamber, and the transport pump is connected to the end of the mixing rod facing the rotating drum through a feeding pipe.

[0009] Furthermore, a deflection gear is provided on the end of the mixing rod facing the rotating drum, and a toothed column electric cylinder is provided inside the rotating drum. A toothed column is connected to the telescopic rod of the toothed column electric cylinder. The toothed column and the deflection gear form a gear pair to control the deflection of the mixing rod.

[0010] Furthermore, the filter element includes a control turntable rotatably mounted on the top of the filter sleeve, and a compression arc block is provided on the control turntable. The ball column is compressed and pushed by the compression arc block. A spring is connected between the ball column and the linkage slide. A drive electric cylinder is rotatably mounted on the filter sleeve, and the extension rod of the drive electric cylinder is rotatably connected to the control turntable to control the rotation of the control turntable.

[0011] Furthermore, a connecting rod is rotatably mounted on the control turntable, one end of which is rotatably connected to the extrusion seat to control the radial sliding of the extrusion seat. A push block is movably connected to one end of the extrusion seat, and a compression spring is connected between the push block and the extrusion seat. The extrusion seat and the compression spring slide radially, and the compression spring contacts the card seat to push the card seat.

[0012] An adsorption method for refined base oils, comprising the following steps:

[0013] (1) Heat the base oil to 140℃-155℃ to remove trace amounts of water and solvent, so that no volatile substances are produced in the subsequent reaction; perform vacuum treatment, with a vacuum degree of less than 1 mmHg, and continue to maintain the vacuum degree to proceed to the next step.

[0014] (2) Add 0.15% SW-1 decolorizing flocculant. The main component of this decolorizing agent is dipropylene flocculant. The addition amount is between 0.1% and 0.5%, and the ratio can be adjusted according to the quality of the refined oil. The decolorizing flocculant and the base oil are stirred and reacted for 4-8 hours to ensure that the decolorizing flocculant and the base oil are fully mixed and reacted. During this period, the temperature should not be lower than 150℃.

[0015] (3) After the base oil reacts with SW-1 decolorizing flocculant, a precipitate is formed. The precipitate is removed by filtration.

[0016] (4) After the first sedimentation and filtration is completed, add 0.5% adsorption and decolorizing agent to the base oil, heat to 205℃ and keep the temperature constant for stirring and mixing reaction. The reaction time should not be less than 4 hours; add catalyst.

[0017] (5) After the base oil has been completely decolorized, cool it to 140℃-155℃ and filter it to remove the adsorbed decolorizing agent. After filtration, it should be cooled to 50℃ to prevent discoloration when exposed to oxygen.

[0018] The beneficial effects of this invention compared with the prior art are: (1) The adsorption method of this invention for base oil can remove a small amount of gum, asphalt and carbon residue contained in the base oil, solving the problems of poor base oil color and short service life, and without polluting the ecological environment; (2) The adsorption device proposed in this invention can quickly filter the precipitated substances, replacing the natural sedimentation of the precipitated substances and accelerating the adsorption rate; (3) In the adsorption device proposed in this invention, various chemical raw materials are added by mixing rod, which can react more fully and quickly with the base oil, thus accelerating the generation rate of precipitated substances. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the interior of the reaction chamber of the present invention.

[0021] Figure 3 This is a schematic diagram of the bottom structure of the reaction chamber of the present invention.

[0022] Figure 4 For the present invention Figure 3 Enlarged view of the area marked A in the middle.

[0023] Figure 5 This is a schematic diagram of the filter element of the present invention.

[0024] Figure 6 For the present invention Figure 5 Enlarged view of the area marked B in the middle.

[0025] Figure 7 This is a partial schematic diagram of the filter element of the present invention.

[0026] Figure 8 This is a schematic diagram of the rotating drum of the present invention.

[0027] Figure 9 This is a schematic diagram of the interior of the rotating drum of the present invention.

[0028] Figure 10 This is a schematic diagram of the structure at the bottom of the rotating drum of the present invention.

[0029] Attached reference numerals: 1-Reaction chamber; 101-Sealed box; 2-Transport box; 3-Transport pipe one; 4-Cleanup box; 5-Mixing motor; 6-Matching electric cylinder; 7-Temperature regulator; 8-Vacuum equipment; 9-Base; 10-Mounting box; 11-Transport pipe two; 12-Filter sleeve; 13-Filter plate; 14-Cleanup frame; 15-Rotating electric cylinder; 16-Gear one; 17-Cleanup motor; 18-Gear two; 19-Clad seat; 20-Spring one; 21-Linkage 22-Electromagnetic retaining ring; 23-Linkage slide; 24-Snapping slide rod; 25-Control turntable; 2501-Extrusion arc block; 26-Drive electric cylinder; 27-Connecting rod; 28-Extrusion seat; 29-Extrusion spring; 30-Push block; 31-Ball column; 32-Spring II; 33-Rotating cylinder; 3301-Threaded part; 34-Baffle plate; 35-Mixing rod; 3501-Deflection gear; 36-Transport pump; 37-Gear column electric cylinder; 38-Gear column; 39-Feeding pipe. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings: Figures 1 to 10 As shown, a cleaning box 4 is provided below the reaction chamber 1, and a transport box 2 is connected to the outside of the reaction chamber 1. A transport pipe 3 is connected to the transport box 2. A temperature regulator 7 for adjusting the temperature and a vacuum pumping device 8 for vacuuming are provided on the top of the reaction chamber 1.

[0031] A rotating drum 33 is rotatably mounted inside the reaction chamber 1. A mixing motor 5 for driving the rotating drum 33 is installed on the top of the reaction chamber 1. A threaded part 3301 is provided on the outer side of the rotating drum 33. The rotating drum 33 has a hollow structure, and its interior is divided into two chambers for storing raw materials by a partition 34. A mixing rod 35 is rotatably mounted at the bottom end of the rotating drum 33, and the top end of the mixing rod 35 communicates with the two chambers. A discharge hole is provided on the mixing rod 35, through which the raw materials are released. A linkage disc 21 is threadedly connected to the threaded part 3301. A locking hole is provided, and an electromagnetic locking ring 22 is provided at the locking hole; a feeding groove is also provided at the top of the rotating drum 33 for feeding raw materials into the chamber; a transport pump 36 is provided in the chamber, and the transport pump 36 is connected to the end of the mixing rod 35 facing the rotating drum 33 through a feeding pipe 39; a deflection gear 3501 is provided on the end of the mixing rod 35 facing the rotating drum 33; a toothed column electric cylinder 37 is provided inside the rotating drum 33; a toothed column 38 is connected to the telescopic rod of the toothed column electric cylinder 37; the toothed column 38 and the deflection gear 3501 form a gear pair to control the deflection of the mixing rod 35.

[0032] A filter element is vertically slidably installed inside the reaction chamber 1 for rapid filtration of precipitate. The filter element includes a filter sleeve 12 slidably connected to the inside of the reaction chamber 1. The inner side of the filter sleeve 12 is slidably connected to the outer side of the rotating drum 33, and the upper part of the inner side of the filter sleeve 12 forms a helical pair with the threaded part 3301. A filter plate 13 is provided at the bottom end of the filter sleeve 12, and a second transport pipe 11 is connected to the filter plate 13. The second transport pipe 11 is connected to the transport box 2 through a first transport pipe 3. The filter sleeve 12 pushes the precipitate towards the bottom of the reaction chamber 1, and through the second transport pipe 11... 1. The mixture is pumped and transported to the transport box 2. A release hole is provided on the end of the transport pipe 11 facing the filter plate 13. A linkage slide 23 is provided at the top of the filter sleeve 12. A fastening slide rod 24 that is slidably connected to the inside of the reaction box 1 is connected to the circumference of the linkage slide 23. A squeezing seat 28 is slidably installed on the fastening slide rod 24. A ball column 31 is slidably installed on the linkage slide 23. The filter element slides together with the linkage plate 21 by cooperating with the locking hole at one end of the ball column 31. A locking seat 19 is slidably provided on the outside of the reaction box 1. The locking seat 19 is connected to the locking hole. The slide bar 24 engages to secure the filter element; the clamping seat 19 is pushed by the squeezing seat 28 to release the filter element from its fixation; a sealing box 101 is provided on the outside of the reaction chamber 1, the clamping seat 19 is located inside the sealing box 101, and a spring 20 connects the clamping seat 19 to the outside of the reaction chamber 1; the filter element also includes a control turntable 25 rotatably mounted on the top of the filter sleeve 12, and a squeezing arc block 2501 is provided on the control turntable 25, the ball column 31 is squeezed and pushed by the squeezing arc block 2501; a spring 32 connects the ball column 31 to the linkage slide 23. A drive cylinder 26 is rotatably mounted on the filter sleeve 12. The extension rod of the drive cylinder 26 is rotatably connected to the control turntable 25 to control the rotation of the control turntable 25. A connecting rod 27 is rotatably mounted on the control turntable 25. One end of the connecting rod 27 is rotatably connected to the extrusion seat 28 to control the radial sliding of the extrusion seat 28. A push block 30 is movably connected to one end of the extrusion seat 28. A compression spring 29 is connected between the push block 30 and the extrusion seat 28. The extrusion seat 28 and the compression spring 29 slide radially and contact the clamping seat 19 through the compression spring 29 to push the clamping seat 19.

[0033] A base 9 is slidably fitted at the bottom of the reaction chamber 1, and a cleaning rack 14 for removing sediment is movably mounted on the base 9. A matching electric cylinder 6 is located at the bottom outer side of the reaction chamber 1, and the telescopic rod of the matching electric cylinder 6 is fixedly connected to the base 9 to control the sliding of the base 9. A mounting box 10 is located at the bottom of the base 9, and a rotating electric cylinder 15 is rotatably mounted inside the mounting box 10. A gear 16 is mounted on the rotating electric cylinder 15, and a cleaning motor 17 is located inside the mounting box 10. A gear 18 is connected to the output shaft of the cleaning motor 17, and the gear 18 and the gear 16 form a gear pair to drive the rotating electric cylinder 15 to rotate. The telescopic rod of the rotating electric cylinder 15 is fixedly connected to the cleaning rack 14. A slot is provided on the base 9 for placing the cleaning rack 14. When the cleaning rack 14 is located in the slot, the upper end surface of the cleaning rack 14 is flush with the upper end surface of the base 9.

[0034] The adsorption method for refined base oil proposed in this invention includes the following steps:

[0035] (1) Heat the base oil to 140℃-155℃ to remove trace amounts of water and solvent, so that no volatile substances are produced in the subsequent reaction; perform vacuum treatment, with a vacuum degree of less than 1 mmHg, and continue to maintain the vacuum degree to proceed to the next step.

[0036] (2) Add 0.15% SW-1 decolorizing flocculant. The main component of this decolorizing agent is dipropylene flocculant. The addition amount is between 0.1% and 0.5%, and the ratio can be adjusted according to the quality of the refined oil. The decolorizing flocculant and the base oil are stirred and reacted for 4-8 hours to ensure that the decolorizing flocculant and the base oil are fully mixed and reacted. During this period, the temperature should not be lower than 150℃.

[0037] (3) After the base oil reacts with SW-1 decolorizing flocculant, a precipitate is formed. The precipitate is removed by filtration.

[0038] (4) After completing the first sedimentation filtration, add 0.5% adsorption decolorizing agent to the base oil and heat it to 205℃ to maintain the temperature and carry out stirring and mixing reaction. The reaction time should not be less than 4 hours.

[0039] (5) After the base oil has been completely decolorized, cool it to 140℃-155℃ and filter it to adsorb the decolorizing agent. After filtration, it should be cooled to 50℃ to prevent discoloration when exposed to oxygen.

[0040] Adsorption decolorizing agents are generally activated carbon, kaolin, or adsorption resin. They remove color through adsorption, and can directly filter out impurities and oxides from oil. This method integrates impurity removal, odor removal, decolorization, and separation, turning blackened oil into a light-colored, transparent liquid. In this method, 0.5% adsorption decolorizing agent is added, depending on the specific circumstances. In the step of adding the adsorption decolorizing agent, the catalyst composition is 3%-10% activated alumina and 15%-50% ZSM-22 nano-alumina. The process involves using a molecular sieve, 8%-16% acid-free nano-white clay, 5% fumed silica, 15%-25% 200-mesh activated carbon powder, and 0.5%-3% calcium hydroxide powder. The acid-free nano-white clay increases the porosity coefficient, allowing this adsorbent and decolorizing agent to be reused, which is beneficial to the development of the environmental protection industry. This method is more effective than ordinary white clay refining, and it has a good removal effect on color, colloids, asphaltene, and residual carbon, with a removal rate of up to 99.5%, without generating hazardous waste or solid waste.

[0041] The decolorizing flocculant is a novel quaternary ammonium-type organic polymeric flocculant that integrates decolorization, flocculation, and COD removal. The working principle of the decolorizing flocculant involves preparing an aqueous solution of inorganic flocculant and organic anionic flocculant polyacrylamide (PAM) and adding it to the solution to be treated. This creates a compressed electric double layer, causing the suspended particles in the wastewater to lose stability. The particles aggregate and grow larger, forming flocs or flocculations. Once the flocs reach a certain size, they detach from the aqueous phase and precipitate under gravity, thus removing a large amount of suspended impurities from the wastewater and achieving the desired treatment effect. The SW-1 decolorizing flocculant used in this method was developed by Dalian No. 7 Factory. This decolorizing flocculant is a finished decolorizing agent and can be purchased directly. The precipitate produced in the corresponding steps can be used as a rubber modifier.

[0042] The working principle of the adsorption device proposed in this invention for adsorbing base oil is as follows: First, two raw materials (SW-1 decolorizing flocculant and adsorption decolorizing agent) are added and stored in two chambers of the rotating drum 33, and the base oil is added to the reaction tank 1; SW-1 decolorizing flocculant is released in one of the chambers, that is, the transport pump 36 works and it is transmitted to the mixing rod 35 through the feeding pipe 39, and released through the mixing rod 35; the gear cylinder 37 controls the sliding of the gear column 38, and under the gear transmission, the mixing rod 35 swings to continuously change the orientation angle, that is, the angle of releasing the raw materials is continuously changed. At the same time, the mixing motor 5 works and drives the rotating drum 33 to rotate, thereby completing the mixing and stirring, so that the base oil reacts more fully and quickly with the raw materials.

[0043] When the drum 33 rotates, the linkage disc 21 rotates along with the drum 33. When the base oil and raw materials react to form precipitate, in order to quickly remove the precipitate, the drive cylinder 26 controls the rotation of the rotating disc 25, and the extrusion arc block 2501 extrudes and pushes the ball column 31, so that the ball column 31 engages with the locking hole on the linkage disc 21, and the linkage slide 23 is fixed by the electromagnetic retaining ring 22. When the drum 33 rotates, under the connection of the screw pair, the filter sleeve 12, filter plate 13, linkage slide 23 and locking slide rod 24 will move downward. It should be noted that, in the control When the turntable 25 rotates, under the connecting action of the connecting rod 27, the extrusion seat 28 slides radially, pushing the retainer 19 through the push block 30, causing the retainer 19 to release the engagement state with the locking slide rod 24, thereby releasing the degree of freedom of downward movement; further, the gear cylinder 37 controls the gear 38 to slide, causing the turntable 25 to close inward, i.e., to be in a closed state, allowing the filter plate 13 to pass through; under the filtering action of the filter plate 13, the sediment is pushed to the bottom of the reaction tank 1; while the base oil passes through the filter plate 13 and is located above the filter plate 13.

[0044] The base oil is temporarily stored in transport box 2 via transport pipe 2 11 and transport pipe 1 3. Then, with the help of electric cylinder 6, the base 9 is disengaged from the bottom of reaction box 1 and enters cleaning box 4. Filter plate 13 also continues to descend and enters cleaning box 4 to carry the filtered sediment into cleaning box 4. Electric cylinder 15 is rotated to raise cleaning frame 14, and cleaning motor 17 operates. Under gear transmission, electric cylinder 15 rotates, and cleaning frame 14 rotates, removing the sediment between filter plate 13 and base 9. The operator can install rinsing equipment inside cleaning box 4 to facilitate sediment removal. After cleaning, base 9 re-engages with the bottom of reaction box 1. The base oil is then transported back to reaction box 1 for adsorption and decolorization agent addition. The next filtration operation is completed through the above steps. This embodiment can quickly remove sediment, replacing the static method, i.e., the sediment settles naturally, accelerating adsorption efficiency and facilitating the removal of sediment and thorough and rapid mixing reaction.

Claims

1. An adsorption device for refined base oil, comprising a reaction chamber (1), wherein base oil is added to the reaction chamber (1), a cleaning chamber (4) is provided below the reaction chamber (1), a transport chamber (2) is connected to the outside of the reaction chamber (1), and a temperature regulator (7) for adjusting temperature and a vacuuming device (8) for vacuuming are provided on the top of the reaction chamber (1); characterized in that: A rotating drum (33) is rotatably mounted inside the reaction chamber (1). A threaded section (3301) is provided on the outer side of the rotating drum (33). The rotating drum (33) has a hollow structure, and its interior is divided into two chambers for storing raw materials by a partition (34). The adsorbent and decolorizing agent is added and stored in one of the chambers. A mixing rod (35) is rotatably mounted at the bottom of the rotating drum (33), and the top of the mixing rod (35) communicates with the two chambers. A discharge hole is provided on the mixing rod (35), through which the raw materials are released. The threaded section (3301)... 01) A linkage disc (21) is threadedly connected to the upper part, and a locking hole is provided on the linkage disc (21). An electromagnetic locking ring (22) is provided at the locking hole. A filter element is vertically and slidably installed on the inner side of the reaction tank (1) for quickly filtering the precipitate. The filter element includes a filter sleeve (12) that is slidably connected to the inner side of the reaction tank (1). A filter plate (13) is provided at the bottom end of the filter sleeve (12). The inner side of the filter sleeve (12) is slidably connected to the outer side of the rotating cylinder (33), and the upper part of the inner side of the filter sleeve (12) is connected to the threaded part (3301). A spiral pair is formed; a transport pipe 2 (11) is connected to the filter plate (13), the transport pipe 2 (11) is connected to the transport box (2), the filter sleeve (12) pushes the precipitate to the bottom of the reaction box (1), and the mixture is pumped and transported to the transport box (2) through the transport pipe 2 (11); a linkage slide (23) is provided at the top of the filter sleeve (12), and a fastening slide rod (24) that is slidably connected to the inside of the reaction box (1) is connected to the circumference of the linkage slide rod (23); a squeezing seat (28) is slidably installed on the fastening slide rod (24); and in A ball column (31) is slidably mounted on the linkage slide (23). One end of the ball column (31) engages with the locking hole, allowing the filter element to slide together with the linkage disc (21). A locking seat (19) is slidably provided on the outside of the reaction chamber (1). The locking seat (19) engages with the locking slide rod (24) to fix the filter element. The locking seat (19) is pushed by the squeezing seat (28) to release the fixing of the filter element. A base (9) is slidably fitted at the bottom of the reaction chamber (1). A cleaning rack (14) for removing sediment is movably provided on the base (9). A deflection gear (3501) is provided on one end of the mixing rod (35) facing the rotating drum (33). A gear cylinder (37) is provided inside the rotating drum (33). A gear column (38) is connected to the telescopic rod of the gear cylinder (37). The gear column (38) and the deflection gear (3501) form a gear pair to control the deflection of the mixing rod (35). The filter element includes a control turntable (25) rotatably mounted on the top of the filter sleeve (12), and a compression arc block (2501) is provided on the control turntable (25). The ball column (31) is compressed and pushed by the compression arc block (2501). A spring (32) is connected between the ball column (31) and the linkage slide (23). A drive cylinder (26) is rotatably mounted on the filter sleeve (12). The extension rod of the drive cylinder (26) is rotatably connected to the control turntable (25) to drive the control turntable (25) to rotate. A connecting rod (27) is rotatably mounted on the control turntable (25). One end of the connecting rod (27) is rotatably connected to the extrusion seat (28) to control the radial sliding of the extrusion seat (28). A push block (30) is movably connected to one end of the extrusion seat (28). A compression spring (29) is connected between the push block (30) and the extrusion seat (28). The extrusion seat (28) and the compression spring (29) slide radially and contact the card seat (19) through the compression spring (29) to push the card seat (19). The gear cylinder (37) controls the gear (38) to slide, so that the mixing rod (35) closes inward and allows the filter plate (13) to pass through; under the filtering action of the filter plate (13), the precipitate is pushed to the bottom of the reaction chamber (1); the base oil passes through the filter plate (13) and is located above the filter plate (13).

2. The adsorption device for refined base oil according to claim 1, characterized in that: The transport box (2) is connected to a transport pipe (3), one end of which is connected to a transport pipe (11). A release hole is provided on the end of the transport pipe (11) facing the filter plate (13).

3. The adsorption device for refined base oil according to claim 1, characterized in that: A matching electric cylinder (6) is provided at the bottom outer side of the reaction box (1). The telescopic rod of the matching electric cylinder (6) is fixedly connected to the base (9) to control the sliding of the base (9). A mounting box (10) is provided at the bottom of the base (9). A rotating electric cylinder (15) is rotatably installed inside the mounting box (10). A gear one (16) is provided on the rotating electric cylinder (15). A cleaning motor (17) is provided inside the mounting box (10). A gear two (18) is connected to the output shaft of the cleaning motor (17). The gear two (18) and the gear one (16) form a gear pair to drive the rotating electric cylinder (15) to rotate. The telescopic rod of the rotating electric cylinder (15) is fixedly connected to the cleaning frame (14). A slot for placing the cleaning frame (14) is provided on the base (9). When the cleaning frame (14) is located in the slot, the upper surface of the cleaning frame (14) is flush with the upper surface of the base (9).

4. The adsorption device for refined base oil according to claim 3, characterized in that: A sealing box (101) is provided on the outside of the reaction box (1), and a card holder (19) is located inside the sealing box (101). A spring (20) is connected between the card holder (19) and the outside of the reaction box (1).

5. The adsorption device for refined base oil according to claim 4, characterized in that: The top of the reaction chamber (1) is equipped with a mixing motor (5) for driving the rotating drum (33) to rotate; a feed chute is also provided at the top of the rotating drum (33) for feeding raw materials into the chamber; a transport pump (36) is provided in the chamber, and the transport pump (36) is connected to the end of the mixing rod (35) facing the rotating drum (33) through a feeding pipe (39).

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