Catalytic slurry oil filtering and extracting device

Abstract

The invention discloses a catalytic slurry oil filtering and extracting device, and belongs to the technical field of catalytic slurry oil processing, the catalytic slurry oil filtering and extracting device comprises a tank body, the inner side and the outer side of the tank body are jointly provided with a cleaning component, the cleaning component comprises a servo motor fixedly connected to the upper side of a top cover, and the output end of the servo motor penetrates through the top cover and is fixedly connected with a lead screw; the outer side of the screw rod is in threaded connection with a screw rod nut, the outer side of the screw rod nut is sleeved with a movable disc, and the outer side of the movable disc is fixedly connected with a first scraping ring. The impurities attached to the surface of the ceramic filter element and the inner side wall of the filter cavity can be cleaned through the first scraping ring and the second scraping ring in the vertical moving process of the movable disc, so that automatic cleaning of the inner side wall of the filter cavity and the surface of the ceramic filter element is realized, impurity blockage is avoided, smooth proceeding of the filtering process is ensured, and the service life of equipment is further prolonged.

Description

Technical Field

[0001] This invention relates to the field of catalytic oil slurry processing technology, and more specifically, to a catalytic oil slurry filtration and extraction apparatus. Background Technology

[0002] Oil slurry is a heavy component residue fuel produced by catalytic cracking units in oil refineries. It falls under the category of industrial fuel oil and is mainly divided into two types: marine internal combustion engine fuel oil and furnace fuel oil. Its raw materials originate from the bottom products of the catalytic cracking process. Physically, it exhibits high viscosity and high density, and contains impurities such as catalyst powder. Marine fuel oil is made by blending straight-run heavy oil with diesel oil and is suitable for large, low-speed marine diesel engines with speeds below 150 rpm. Viscosity, flash point, and other indicators need to be controlled, and the preheating temperature must be 20°C below the flash point to ensure atomization combustion. Furnace fuel oil is formulated from vacuum residue, cracking residue, etc., and is preheated and filtered at 70-120°C before atomization combustion in industrial boilers. Catalyst particles in the ash may affect equipment lifespan. Both types of fuel oil must comply with quality specifications for viscosity, sulfur content, and pour point, and are widely used in marine power, power generation, and petrochemical industries.

[0003] Catalytic slurry filtration is divided into two stages: pre-filtration and fine filtration. In fine filtration, the porous metal powder sintered filter element is the core component. When the hot slurry passes through the filter element, the liquid slurry can pass through, while the solid catalyst particles are trapped on the filter element surface. Through dry gas backwashing, the catalyst particles are flushed into the filter cake receiving device. When the waste residue is discharged, the pressure is rapidly released, and the filtrate flows in the reverse direction, causing the medium in the filtration equipment to flow out through the slag discharge valve. Solvent extraction separates the solutes based on their different solubilities in the solvent. Polar solutes can dissolve in polar solvents, and non-polar solutes can dissolve in non-polar solvents. In catalytic slurry treatment, by selecting a suitable solvent, components such as saturated hydrocarbons, aromatic hydrocarbons, gums, and asphaltenes in the slurry can be effectively separated. In existing technologies, catalytic slurry is a byproduct of catalytic cracking units, containing a large amount of catalyst powder, coke particles, unreacted hydrocarbons, and a small amount of water and impurities. These solid particles have a wide particle size distribution, ranging from micrometers to millimeters. If they directly enter the filtration and extraction unit, large particles of impurities will quickly clog the filter element or the packing layer of the extraction tower, causing a sharp increase in equipment pressure drop, a decrease in processing capacity, and even equipment failure. Summary of the Invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a catalytic oil slurry filtration and extraction device.

[0005] To solve the above problems, the present invention adopts the following technical solution, which can realize the cleaning of impurities attached to the surface of the ceramic filter element and the inner wall of the filter chamber by the first scraper ring and the second scraper ring during the up and down movement of the movable disc, thereby realizing the automatic cleaning of the inner wall of the filter chamber and the surface of the ceramic filter element and avoiding impurity blockage.

[0006] A catalytic oil slurry filtration and extraction device includes a tank and a filter chamber opened on the upper side of the tank. A top cover is provided on the upper side of the tank. A second feed pipe is fixedly connected to the upper right side of the top cover. Cleaning components are provided on both the inner and outer sides of the tank. The cleaning component includes a servo motor fixedly connected to the upper side of the top cover. The output end of the servo motor is fixedly connected to a lead screw through the top cover. A lead screw nut is threaded onto the outer side of the lead screw nut. A movable disc is sleeved on the outer side of the movable disc. A first scraper ring is fixedly connected to the outer side of the movable disc. Connecting blocks are fixedly connected to both the left and right sides of the inner surface of the movable disc. A second scraper ring is fixedly connected to the opposite surfaces of the connecting blocks on the left and right sides. A ceramic filter element is inserted into the lower side of the filter chamber. The second scraper ring is slidably sleeved on the outer side of the ceramic filter element. A conveying pipe is fixedly connected to the bottom end of the ceramic filter element.

[0007] Furthermore, an extraction chamber is provided on the lower side of the interior of the tank, two heating elements are provided inside the side wall of the tank, a first feeding pipe is fixedly connected to the right side of the outer surface of the tank, and a discharge pipe is fixedly connected to the lower side of the tank.

[0008] Furthermore, the outer surface of the first scraper ring slides in contact with the inner wall of the filter chamber, the delivery pipe extends from the filter chamber to the interior of the extraction chamber, the ceramic filter element is connected to the extraction chamber through the delivery pipe, and the inner wall of the second scraper ring slides in contact with the outer surface of the ceramic filter element.

[0009] Furthermore, a guide post is fixedly connected to the lower right side of the filter chamber, the movable disc is slidably sleeved on the outside of the guide post, a one-way valve is installed inside the conveying pipe, the second feed pipe passes through the top cover, and the heating element heats the catalytic oil slurry inside the filter chamber and the extraction chamber respectively.

[0010] Furthermore, the filter chamber is provided with a disturbance component, which includes through holes arranged in a ring array and extending through the upper side of the movable disk.

[0011] Furthermore, guide tubes are fixedly connected to both the upper and lower sides of the movable disk in a circular array. Movable strips are fixedly connected to the side of the guide tubes away from the movable disk in a circular array. Multiple movable strips are arranged in a trumpet shape. Multiple guide tubes are respectively connected to multiple through holes. The upper and lower guide tubes are staggered.

[0012] Furthermore, a filter assembly is provided on the outer side of the movable disc, the filter assembly including a fixing ring fixedly connected to the upper and lower sides of the movable disc.

[0013] Furthermore, each of the fixing rings has a filter screen fixedly connected inside, the filter screen is sleeved on the outside of the ceramic filter element, and the inner cavity shape of the fixing ring is adapted to the shape of the filter screen.

[0014] Furthermore, the inner and outer sides of the movable disc are provided with a material collection assembly, which includes two limiting rings fixedly connected to the opposite surfaces of the upper and lower filter screens.

[0015] Furthermore, a first guide ring is fixedly connected to the outer side of the upper limiting ring, and a second guide ring is fixedly connected to the lower side of the inner wall of the fixed ring. There is a gap between the limiting ring and the ceramic filter element, and there is a gap between the second guide ring and the lower limiting ring.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) The present invention cleans the impurities attached to the surface of the ceramic filter element by setting the second scraper ring during the up and down movement of the movable disc. Since the impurities attached to the surface of the ceramic filter element and the inner wall of the filter chamber can be cleaned by the first scraper ring and the second scraper ring during the up and down movement of the movable disc, the inner wall of the filter chamber and the surface of the ceramic filter element are automatically cleaned, avoiding impurity blockage, ensuring the smooth progress of the filtration process, and thus extending the service life of the equipment.

[0017] (2) The present invention guides the oil slurry through the through holes after the movable plate moves up and down, promoting the flow of the oil slurry. As the movable plate moves up and down, it can promote the flow of the oil slurry and disturb the oil slurry to avoid local blockage and ensure the stability of the filtration effect. Moreover, the staggered arrangement of the upper and lower guide cylinders makes the disturbance effect more uniform in space, disturbing the oil slurry in all directions and optimizing the filtration process.

[0018] (3) The present invention further filters the oil slurry that has been initially filtered by the ceramic filter element by setting the filter screen to move up and down during the process of moving the movable plate. As the filter screen moves, some of the impurities on its surface will fall off and be discharged with the oil slurry under the action of the scouring of the oil slurry and its own gravity, thus avoiding the filter screen from clogging too quickly, extending the service life of the filter screen, and improving the filtration accuracy of the catalytic oil slurry. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a cross-sectional structural diagram of the tank body of the present invention; Figure 4 This is a cross-sectional view of the movable disk of the present invention; Figure 5 This is a schematic diagram of the structure of the movable strip of the present invention; Figure 6 This is a cross-sectional view of the fixing ring of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of point A; Figure 8 This is a cross-sectional view of the limiting ring of the present invention.

[0020] Explanation of the labels in the diagram: 1. Tank body; 11. Filter chamber; 12. Extraction chamber; 13. Heating element; 14. First feed pipe; 15. Discharge pipe; 16. Top cover; 17. Second feed pipe; 2. Cleaning component; 21. Servo motor; 22. Lead screw; 23. Lead screw nut; 24. Movable disc; 25. First scraper ring; 26. Connecting block; 27. Second scraper ring; 28. Ceramic filter element; 29. ​​Conveying pipe; 3. Guide column; 4. One-way valve; 5. Disturbing component; 51. Through hole; 52. Flow guide tube; 53. Movable strip; 54. Filter assembly; 541. Fixing ring; 542. Filter screen; 55. Collection assembly; 551. Limiting ring; 552. First guide ring; 553. Second guide ring. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1 to 8 A catalytic oil slurry filtration and extraction device includes a tank body 1 and a filter chamber 11 opened on the upper side inside the tank body 1. A top cover 16 is provided on the upper side of the tank body 1, and a second feed pipe 17 is fixedly connected to the upper right side of the top cover 16. A cleaning component 2 is provided on both the inner and outer sides of the tank body 1. The cleaning component 2 includes a servo motor 21 fixedly connected to the upper side of the top cover 16. The output end of the servo motor 21 passes through the top cover 16 and is fixedly connected to a lead screw 22. A lead screw nut 23 is threadedly connected to the outer side of the lead screw 22. A movable disc 24 is sleeved on the outer side of the lead screw nut 23. A first scraper ring 25 is fixedly connected to the outer side of the movable disc 24. Connecting blocks 26 are fixedly connected to both the left and right sides of the inner surface of the movable disc 24. A second scraper ring 27 is fixedly connected to the opposite surfaces of the left and right connecting blocks 26. A ceramic filter element 28 is inserted into the lower side of the interior of the filter chamber 11. The second scraper ring 27 is slidably sleeved on the outer side of the ceramic filter element 28. A conveying pipe 29 is fixedly connected to the bottom end of the ceramic filter element 28.

[0023] An extraction chamber 12 is provided on the lower side of the interior of the tank body 1. Two heating elements 13 are provided inside the side wall of the tank body 1. A first feed pipe 14 is fixedly connected to the right side of the outer surface of the tank body 1. A discharge pipe 15 is fixedly connected to the lower side of the tank body 1.

[0024] The outer surface of the first scraper ring 25 slides in contact with the inner wall of the filter chamber 11, the delivery pipe 29 extends from the filter chamber 11 to the interior of the extraction chamber 12, the ceramic filter element 28 is connected to the extraction chamber 12 through the delivery pipe 29, and the inner wall of the second scraper ring 27 slides in contact with the outer surface of the ceramic filter element 28.

[0025] A guide post 3 is fixedly connected to the right side of the lower end of the filter chamber 11. The movable disk 24 is slidably sleeved on the outside of the guide post 3. A one-way valve 4 is installed inside the conveying pipe 29. The second feed pipe 17 passes through the top cover 16. The heating element 13 heats the catalytic oil slurry inside the filter chamber 11 and the extraction chamber 12 respectively.

[0026] By adopting the above technical solution, when the catalytic slurry enters the filter chamber 11 for filtration, as the filtration process continues, solid impurities, such as catalyst powder and coke particles, will gradually accumulate on the surface of the ceramic filter element 28 and the inner wall of the filter chamber 11. If these impurities are not cleaned in time, they will clog the filter element and affect the filtration effect. At this time, the servo motor 21 is started, and the output end of the servo motor 21 begins to drive the lead screw 22 to rotate. Because the lead screw nut 23 is threadedly connected to the lead screw 22, the lead screw nut 23 will move up and down along the lead screw 22 during the rotation of the lead screw 22. A movable disc 24 is fitted, which is connected to the second scraper ring 27 via a connecting block 26. The first scraper ring 25 is fixed to the outside of the movable disc 24. Therefore, the movable disc 24 will move up and down together with the lead screw nut 23. During the up and down movement of the movable disc 24, the first scraper ring 25 will slide along the inner wall of the filter chamber 11 and scrape off the impurities attached to the inner wall of the filter chamber 11. The second scraper ring 27 will slide along the outer surface of the ceramic filter element 28 and scrape off the impurities accumulated on the surface of the ceramic filter element 28. The scraped impurities will sink to the bottom of the filter chamber under the action of gravity and the flow of oil slurry. It should be noted that, due to the high viscosity and high density of the catalytic slurry, some solid impurities and colloids are easily adhered to and retained on the inner wall of the filter chamber when it flows or the liquid level fluctuates within the filter chamber. As a result, solid impurities accumulate on the inner surface of the filter chamber. During the up-and-down movement of the movable disc 24, the impurities attached to the surface of the ceramic filter element 28 and the inner wall of the filter chamber 11 can be cleaned by the first scraper ring 25 and the second scraper ring 27. This achieves automatic cleaning of the inner wall of the filter chamber 11 and the surface of the ceramic filter element 28, avoids clogging by impurities, ensures the smooth progress of the filtration process, and extends the service life of the equipment.

[0027] like Figures 2 to 8 As shown, the filter chamber 11 is provided with a disturbance component 5, which includes through holes 51 arranged in a ring array and extending through the upper side of the movable disk 24.

[0028] Both the upper and lower sides of the movable disk 24 are fixedly connected with guide tubes 52 in a circular array. On the side of the guide tubes 52 away from the movable disk 24, a movable strip 53 is fixedly connected in a circular array. Multiple movable strips 53 are arranged in a trumpet shape. Multiple guide tubes 52 are connected to multiple through holes 51 respectively. The upper and lower guide tubes 52 are staggered.

[0029] By adopting the above technical solution, during the catalytic oil slurry filtration process, when the movable disk 24 moves up and down under the drive of the cleaning component 2, the through hole 51 on the upper side of the movable disk 24 will push the surrounding oil slurry to flow. Since the guide cylinder 52 is connected to the through hole 51, the oil slurry will enter the guide cylinder 52. The movable strips 53 on the side of the guide cylinder 52 away from the movable disk 24 are arranged in a funnel shape. The oil slurry flows through the funnel-shaped contraction section, and the increased flow velocity leads to a local increase in dynamic pressure, thereby generating a shearing and disturbance effect on the boundary layer fluid attached to the surface of the ceramic filter element 28. As the movable disk 24 continues to move downward, the disturbance degree of the movable strips 53 on the oil slurry gradually increases, causing the oil slurry to become more... The oil slurry is quickly filtered through the ceramic filter element 28. When the movable disc 24 moves upward, the space below the movable disc 24 increases, forming a certain negative pressure. This helps to draw the oil slurry that has been filtered to the lower part of the filter chamber 11 upward through the ceramic filter element 28, further promoting the filtration flow of the oil slurry. At the same time, it also makes the oil slurry distribution on the surface of the ceramic filter element 28 more uniform. As the movable disc 24 moves up and down, it can promote the flow of the oil slurry and disturb the oil slurry to avoid local blockage and ensure the stability of the filtration effect. Moreover, the upper and lower guide cylinders 52 are staggered, making the disturbance effect more uniform in space, disturbing the oil slurry from all directions and optimizing the filtration process.

[0030] like Figures 1 to 8 As shown, a filter assembly 54 is provided on the outer side of the movable disc 24. The filter assembly 54 includes a fixing ring 541 that is fixedly connected to the upper and lower sides of the movable disc 24.

[0031] The inside of the fixing ring 541 is fixedly connected to the filter screen 542. The filter screen 542 is sleeved on the outside of the ceramic filter element 28. The inner cavity shape of the fixing ring 541 is adapted to the shape of the filter screen 542.

[0032] By adopting the above technical solution, during the catalytic oil slurry filtration process, after the oil slurry undergoes preliminary filtration through the ceramic filter element 28, some minute impurities may still remain. In this case, the oil slurry that has undergone preliminary filtration through the ceramic filter element 28 will continue to flow upwards or downwards and pass through the filter screens 542 on both sides of the movable disk 24. The filter screens 542 have specific pore sizes, which can further intercept residual minute impurities in the oil slurry, such as small catalyst particles and colloids. The fixing ring 541 fixes the filter screens 542 to the movable disk 24. Furthermore, the filter screen 542 is fitted on the outside of the ceramic filter element 28. As the movable disc 24 moves up and down, the filter screen 542 also moves up and down accordingly. This movement makes the relative movement between the filter screen 542 and the oil slurry more complete, thereby enhancing the filter screen 542's interception effect on impurities. During the movement of the filter screen 542, some of the impurities on its surface will be detached and discharged with the oil slurry under the flushing of the oil slurry and its own gravity, preventing the filter screen 542 from clogging too quickly, extending the service life of the filter screen 542, and improving the filtration accuracy of the catalytic oil slurry.

[0033] like Figures 6 to 8 As shown, the inner and outer sides of the movable disc 24 are provided with a material collection component 55, which includes two limiting rings 551 fixedly connected to the opposite sides of the upper and lower filter screens 542.

[0034] A first guide ring 552 is fixedly connected to the outer side of the upper limiting ring 551, and a second guide ring 553 is fixedly connected to the lower side of the inner wall of the fixing ring 541. There is a gap between the limiting ring 551 and the ceramic filter element 28, and there is a gap between the second guide ring 553 and the lower limiting ring 551.

[0035] By adopting the above technical solution, during the catalytic oil slurry filtration process, the impurities intercepted by the filter screen 542 will gradually accumulate on the surface of the filter screen 542. When the movable disk 24 moves up and down, the first guide ring 552 located outside the upper limiting ring 551 will move together with the movable disk 24. The first guide ring 552 has a certain tilt angle. During the movement, the impurities scraped by the second scraper ring 27 are introduced into the upper part of the first guide ring 552, and at the same time, the impurities accumulated on the surface of the upper filter screen 542 are gathered towards the center. Meanwhile, the second guide ring 553 on the lower side of the inner wall of the fixed ring 541 also has a tilt angle. When the movable disk 24 moves, the second guide ring 553 will also guide the impurities scraped by the second scraper ring 27 into the upper part of the filter screen 542. The material enters below the second guide ring 553, causing impurities accumulated on the surface of the lower filter screen 542 to gather towards the center. There are gaps between the two limiting rings 551 and the ceramic filter element 28, and there are also gaps between the second guide ring 553 and the lower limiting ring 551. These gaps provide space for the accumulation and flow of impurities. Due to the combined action of the first guide ring 552 and the second guide ring 553, the impurities intercepted on the surface of the filter screen 542 are effectively concentrated in the middle area of ​​the filter screen 542. With the continuous movement of the movable disc 24 and the flow of the slurry, these concentrated impurities are more easily discharged from the filter chamber 11 with the slurry, reducing the residue of impurities on the surface of the filter screen 542 and ensuring the filtration performance of the filter screen 542.

[0036] Working principle: The servo motor 21 drives the lead screw 22 to rotate, causing the lead screw nut 23 and the movable disk 24 to move up and down. When the movable disk 24 moves, the first scraper ring 25 scrapes off impurities from the inner wall of the filter chamber 11, and the second scraper ring 27 scrapes off impurities from the surface of the ceramic filter element 28, achieving preliminary cleaning. At the same time, the disturbance component 5, composed of the through hole 51, the guide cylinder 52, and the movable bar 53 on the movable disk 24, disturbs the oil slurry as the movable disk 24 moves, promoting its filtration through the ceramic filter element 28. The staggered upper and lower guide cylinders 52 increase the disturbance intensity. The oil slurry that has been preliminarily filtered by the ceramic filter element 28 is then further cleaned by the upper and lower sides of the movable disk 24. The filter screen 542 inside the fixed ring 541 further intercepts tiny impurities. The movement of the movable disc 24 allows the filter screen 542 to move more fully relative to the oil slurry, enhancing the filtration effect. In the material collection assembly 55, the first guide ring 552 and the second guide ring 553 move with the movable disc 24, gathering impurities on the surface of the filter screen 542 towards the center. By utilizing the gap between the filter screen 542 and the ceramic filter element 28 and the lower limiting ring 551, the impurities are discharged with the oil slurry, reducing the residue of impurities on the filter screen 542 and ensuring continuous and efficient filtration of the device.

[0037] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A catalytic oil slurry filtration and extraction device, comprising a tank (1) and a filter chamber (11) formed on the upper side inside the tank (1), wherein a top cover (16) is provided on the upper side of the tank (1), and a second feed pipe (17) is fixedly connected to the upper right side of the top cover (16), characterized in that: The tank (1) is equipped with cleaning components (2) on both its inner and outer sides. The cleaning component (2) includes a servo motor (21) fixedly connected to the upper side of the top cover (16). The output end of the servo motor (21) is fixedly connected to a lead screw (22) through the top cover (16). A lead screw nut (23) is threadedly connected to the outer side of the lead screw (22). A movable disc (24) is sleeved on the outer side of the lead screw nut (23). A first scraper ring (25) is fixedly connected to the outer side of the movable disc (24). Connecting blocks (26) are fixedly connected to both the left and right sides of the inner surface of the movable disc (24). A second scraper ring (27) is fixedly connected to the opposite sides of the connecting blocks (26) on both the left and right sides. A ceramic filter element (28) is inserted into the lower side of the filter chamber (11). The second scraper ring (27) is slidably sleeved on the outer side of the ceramic filter element (28). A conveying pipe (29) is fixedly connected to the bottom end of the ceramic filter element (28). The filter chamber (11) is provided with a disturbance component (5), which includes through holes (51) arranged in a ring array and extending through the upper side of the movable disk (24). The upper and lower sides of the movable disk (24) are fixedly connected with guide tubes (52) in a ring array. The side of the guide tubes (52) away from the movable disk (24) is fixedly connected with movable strips (53) in a ring array. Multiple movable strips (53) are arranged in a trumpet shape. Multiple guide tubes (52) are respectively connected to multiple through holes (51). The upper and lower guide tubes (52) are staggered.

2. The catalytic oil slurry filtration and extraction device according to claim 1, characterized in that: An extraction chamber (12) is provided on the lower side of the interior of the tank (1). Two heating elements (13) are provided inside the side wall of the tank (1). A first feeding pipe (14) is fixedly connected to the right side of the outer surface of the tank (1). A discharge pipe (15) is fixedly connected to the lower side of the tank (1).

3. The catalytic oil slurry filtration and extraction device according to claim 2, characterized in that: The outer surface of the first scraper ring (25) slides in contact with the inner wall of the filter chamber (11), the delivery pipe (29) extends from the filter chamber (11) to the interior of the extraction chamber (12), the ceramic filter element (28) is connected to the extraction chamber (12) through the delivery pipe (29), and the inner wall of the second scraper ring (27) slides in contact with the outer surface of the ceramic filter element (28).

4. The catalytic oil slurry filtration and extraction device according to claim 2, characterized in that: A guide post (3) is fixedly connected to the lower right side of the filter chamber (11). The movable disc (24) is slidably sleeved on the outside of the guide post (3). A one-way valve (4) is provided inside the conveying pipe (29). The second feed pipe (17) passes through the top cover (16). The heating element (13) heats the catalytic oil slurry inside the filter chamber (11) and the extraction chamber (12) respectively.

5. The catalytic oil slurry filtration and extraction device according to claim 1, characterized in that: The outer side of the movable disc (24) is provided with a filter assembly (54), which includes a fixing ring (541) fixedly connected to the upper and lower sides of the movable disc (24).

6. The catalytic oil slurry filtration and extraction apparatus according to claim 5, characterized in that: Each of the fixing rings (541) has a filter screen (542) fixedly connected inside. The filter screen (542) is sleeved on the outside of the ceramic filter element (28). The inner cavity shape of the fixing ring (541) is adapted to the shape of the filter screen (542).

7. The catalytic oil slurry filtration and extraction apparatus according to claim 6, characterized in that: The inner and outer sides of the movable disc (24) are provided with a material collection component (55), which includes two limiting rings (551) fixedly connected to the opposite sides of the upper and lower filter screens (542).

8. The catalytic oil slurry filtration and extraction apparatus according to claim 7, characterized in that: A first guide ring (552) is fixedly connected to the outer side of the upper limiting ring (551), and a second guide ring (553) is fixedly connected to the lower side of the inner wall of the fixing ring (541). There is a gap between the limiting ring (551) and the ceramic filter element (28), and there is a gap between the second guide ring (553) and the lower limiting ring (551).

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