Device for filtering catalytic slurry oil by adopting ceramic membrane

Abstract

The invention discloses a device for filtering catalytic slurry oil by adopting a ceramic membrane, and relates to the technical field of filtering equipment, the device comprises a plurality of groups of ceramic membrane mounting components which are annularly distributed and mounted, and each ceramic membrane mounting component comprises a ceramic membrane body and an outer cylinder; an upper connecting assembly and a lower connecting assembly are mounted at the upper end and the lower end of a whole formed by the multiple sets of ceramic membrane mounting assemblies respectively, the lower connecting assembly is connected with a sinking control assembly, and the side wall of the outer cylinder communicates with a filtering and collecting pipe; an upper retainer and a lower retainer are arranged between the outer cylinders, the lower retainer is connected with the outer cylinders in a sleeving manner, a transposition mechanism is arranged in the center of the upper retainer, a lifting mechanism is arranged on the lower side of the upper retainer, and the lifting mechanism drives the lower retainer to perform lifting control; the outer cylinder where the ceramic membrane body is broken is lifted through the lifting mechanism, and the sinking control assembly is combined to drive the lower connecting assembly to sink, so that the ceramic membrane body is rapidly replaced, and the filtering efficiency of catalytic slurry oil is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of filtration equipment, and specifically to a device for filtering catalytic slurry with a ceramic membrane. Background Art

[0002] Filtering catalytic slurry with a ceramic membrane is a commonly used filtration technique in the petrochemical field. The ceramic membrane has a pore structure with specific pore sizes. When filtering catalytic slurry, different components in the slurry are separated under high pressure according to their molecular or particle sizes. For example, smaller light oil molecules and some smaller resin molecules can pass through the pores of the ceramic membrane, while larger asphaltene aggregates, catalyst fines, etc. are retained.

[0003] The ceramic membrane has good high-temperature resistance. The temperature of the catalytic slurry is around 300 - 500 degrees Celsius, and the ceramic membrane can stably filter in such a high-temperature environment. However, the ceramic membrane is prone to breakage during pressure filtration. When the ceramic membrane breaks in the existing ceramic membrane device for filtering catalytic slurry, the steps for replacing the ceramic membrane are cumbersome, which greatly affects the overall filtration efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a device for filtering catalytic slurry with a ceramic membrane to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution:

[0006] A device for filtering catalytic slurry with a ceramic membrane includes a feed pipe, a return pipe, a filtration collection pipe, and a cleaning recovery pipe fixedly installed on a base. A plurality of ceramic membrane installation components are annularly distributed between the feed pipe and the return pipe. The ceramic membrane installation component includes a ceramic membrane body and an outer cylinder coaxially installed. Upper and lower connection components are respectively installed at the upper and lower ends of the whole formed by the plurality of ceramic membrane installation components. The upper connection component is connected to the feed pipe through a conveying pipe, the lower connection component is connected to the return pipe through a return pipe, the lower connection component is connected to a sinking control component, and the side wall of the outer cylinder is communicated with the filtration collection pipe.

[0007] An upper retainer and a lower retainer are arranged between the outer cylinders. The upper retainer is fixedly connected to the base, the lower retainer is sleeved with the outer cylinder. A rotation mechanism is arranged at the central part of the upper retainer, and the rotation mechanism is connected to the upper connection component. A lifting mechanism is arranged on the lower side of the upper retainer, and the lifting mechanism drives the lower retainer to perform lifting control.

[0008] The lifting mechanism includes a suspension column arranged on the lower side of the upper cage. The lower cage is inserted between the suspension columns. A vertical rack is arranged on the suspension column. A climbing gear is rotatably installed on the lower cage. The climbing gear meshes with the vertical rack. The climbing gear is connected to a climbing motor. A clamping component is arranged at the joint between the lower cage and the outer cylinder.

[0009] As a further scheme of the present invention: The clamping component includes wrapping blocks evenly arranged at the joint between the lower cage and the outer cylinder. A spring column is arranged in the wrapping block. The spring column is connected to an electromagnet. A matching groove is arranged on the outer cylinder corresponding to the electromagnet. An iron block is inlaid and installed in the matching groove. When the electromagnet is energized, it adsorbs and clamps with the iron block in the matching groove. When the lifting mechanism climbs, it synchronously drives the outer cylinder to rise.

[0010] As a further scheme of the present invention: The upper connection component includes a mounting disc I arranged at the central part of multiple outer cylinders. A rotating joint is arranged on the mounting disc I. The mounting disc I is connected to the conveying pipe through the rotating joint. Upper plugs are evenly arranged at the circumferential part of the mounting disc I corresponding to the outer cylinders. A fixing rod I is arranged between the mounting disc I and the upper plugs. The upper plugs are in sealing cooperation with the upper ends of the outer cylinder and the ceramic membrane body. A dispersion pipe is arranged between the upper plugs and the mounting disc I. The indexing mechanism is arranged between the upper cage and the mounting disc I.

[0011] As a further scheme of the present invention: The indexing mechanism includes a fixing frame arranged on the upper cage. A rotating seat is rotatably installed on the fixing frame. A telescopic column is arranged on the rotating seat. The rotating seat is connected to the mounting disc I through the telescopic column. A connecting flange is arranged on the side of the mounting disc I. A lifting cylinder is arranged between the connecting flange and the fixing frame. A sector gear is arranged on the edge of the rotating seat. A driving gear is rotatably installed on the edge of the fixing frame. The driving gear meshes with the sector gear. The driving gear is connected to a driving motor.

[0012] As a further scheme of the present invention: The lower connection component includes a mounting disc II. Fixing rods II are evenly arranged on the edge of the mounting disc II. The fixing rods II are connected to lower plugs. The lower plugs cooperate with the lower ends of the outer cylinder and the ceramic membrane body. A sliding rod is arranged on the base. A support frame is slidably installed on the sliding rod. A connecting rod is arranged at the upper end of the support frame corresponding to the fixing rod II. The connecting rod is connected to the fixing rod II. A converging pipe is arranged between the lower plugs and the mounting disc II. The mounting disc II is connected to the return pipe. The support frame is connected to the sinking control component.

[0013] As a further solution of the present invention: The sinking control component includes a rotating frame rotatably arranged at the bottom of the support frame. The rotating frames are symmetrically arranged. A horizontal rod is arranged between the rotating frames. A horizontal rack is arranged on the base. Clamping guide rails are arranged on both sides of the horizontal rack. A clamping frame is slidably installed between the clamping guide rails. A mating gear is rotatably installed between the clamping frames. The mating gear meshes with the horizontal rack. The mating gear is connected to an adjustment motor. A connecting rod is rotatably installed between the clamping frame and the horizontal rod.

[0014] As a further solution of the present invention: A ring-shaped centralized frame is arranged at the lower end of the vertical rack. A docking pipe is arranged at the bottom of the outer cylinder corresponding to the ring-shaped centralized frame. The docking pipe is docked with the ring-shaped centralized frame. A ring-shaped channel is arranged in the ring-shaped centralized frame. A filter recovery pipe is connected to the bottom of the ring-shaped centralized frame. The filter recovery pipe is connected to the filter collection pipe.

[0015] As a further solution of the present invention: A folding pipe one is arranged between the mounting disc one and the conveying pipe. The conveying pipe is arranged along the middle part of the adjacent ceramic membrane mounting components. A solenoid valve is arranged on the conveying pipe.

[0016] As a further solution of the present invention: A folding pipe two is arranged between the mounting disc two and the return pipe. A branch pipe one and a branch pipe two are arranged on the return pipe. The branch pipe one is connected to the cleaning recovery pipe. The branch pipe two is connected to the return material pipe. Solenoid valves are arranged on the branch pipe one and the branch pipe two.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] (1) The damaged outer cylinder is clamped by the clamping component, and the remaining outer cylinders are in a separated state from the lower holding frame. In the lifting mechanism, the climbing motor drives the lower holding frame to move upward, thereby driving the damaged outer cylinder to move upward synchronously, so that the outer cylinder is separated from the inner ceramic membrane body. Combining with the sinking control component to drive the lower connecting component to sink, which is convenient for installing a new ceramic membrane body. After cleaning up the broken ceramic membrane body, connecting the new ceramic membrane body to the lower connecting component, combining with the sinking control component to drive the lower connecting component to rise, and at the same time controlling the lifting mechanism to lower the outer cylinder, so as to complete the mating connection between the outer cylinder and the lower connecting component. Finally, combining with the indexing mechanism to control the upper connecting component to cooperate with the upper end of the outer cylinder to complete the replacement operation of the broken ceramic membrane body.

[0019] (2) The lifting and installation support frame is controlled to rise and fall through the sinking control component, and then the second installation disc and the lower plug are set. When replacing the damaged ceramic membrane body, after the outer cylinder is lifted in combination with the lifting mechanism, due to the position limitation of the upper cage, the lifting height of the outer cylinder is not enough to replace and install a new ceramic membrane body. Therefore, it is necessary to drive the lower connection component to further descend in combination with the sinking control component, so as to install a new ceramic membrane body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an assembly schematic diagram of the present invention.

[0021] Figure 2 It is a schematic diagram of the monomer structure of the present invention.

[0022] Figure 3 It is a connection schematic diagram of the return pipe, the return material pipe and the cleaning and recovery pipe in the present invention.

[0023] Figure 4 It is an installation schematic diagram of the lower connection component and the upper connection component in the present invention.

[0024] Figure 5 It is a connection structure schematic diagram of the ceramic membrane installation component, the upper cage and the lower cage in the present invention.

[0025] Figure 6 It is Figure 5 the enlarged structure schematic diagram at A in

[0026] Figure 7 It is Figure 5 the enlarged structure schematic diagram at B in

[0027] Figure 8 It is Figure 5 the enlarged structure schematic diagram at C in

[0028] Figure 9 It is an installation schematic diagram of the ceramic membrane body in the present invention.

[0029] Figure 10 It is a sectional structure schematic diagram of the annular centralized frame in the present invention.

[0030] Figure 11 It is an installation schematic diagram of the sinking control component in the present invention.

[0031] Figure 12 It is Figure 11 the enlarged structure schematic diagram at D in

[0032] In the figure: 100, feed pipe; 101, return pipe; 102, filter collection pipe; 103, cleaning recovery pipe; 104, conveying pipe; 1040, first folding pipe; 105, return pipe; 1050, second folding pipe; 1051, first branch pipe; 1052, second branch pipe; 106, filter recovery pipe; 1060, annular centralized frame; 1061, annular channel; 1, ceramic membrane installation assembly; 10, ceramic membrane body; 11, outer cylinder; 12, docking pipe; 2, lower connection assembly; 20, second installation disc; 21, confluence pipe; 22, lower plug; 23, support frame; 24, slide bar; 25, connecting rod; 26, second fixing rod; 3, upper connection assembly; 30, first installation disc; 31, first fixing rod; 32, dispersion pipe; 33, upper plug; 34, rotating joint; 4, indexing mechanism; 40, fixing frame; 41, rotating seat; 42, connecting flange; 43, lifting cylinder; 44, telescopic column; 45, sector gear; 46, driving gear; 47, driving motor; 5, sinking control assembly; 50, rotating frame; 51, horizontal bar; 52, horizontal rack; 53, clamping guide rail; 54, clamping frame; 55, mating gear; 56, adjusting motor; 57, connecting rod; 6, upper retaining frame; 7, lower retaining frame; 8, lifting mechanism; 80, suspension column; 81, vertical rack; 82, climbing gear; 83, climbing motor; 84, wrapping block; 85, spring column. Detailed implementation manners

[0033] The technical solutions of the present invention will be further described in detail below in conjunction with the specific implementation manners.

[0034] As Figure 1 , Figure 2 , Figure 3 , Figure 9 As shown in

[0035] Specifically, the ceramic membrane body 10 is coaxially installed with the outer cylinder 11, and the formed area in the middle is used to collect the filtered catalytic slurry. The outer cylinder 11 communicates with the filtration collection pipe 102 near the bottom side wall, and the filtered and collected catalytic slurry is sent into the filtration collection pipe 102. Among them, the feed pipe 100 sends the unfiltered catalytic slurry into the ceramic membrane body 10 through the conveying pipe 104 and the upper connection assembly 3. Part of the catalytic slurry enters the area between the ceramic membrane body 10 and the outer cylinder 11 after filtration, and the remaining catalytic slurry directly enters the return pipe 101 through the lower connection assembly 2 and the return pipe 105. A passage is formed between the feed pipe 100 and the return pipe 101, so as to circularly filter the catalytic slurry.

[0036] As Figure 2 , Figure 4 , Figure 5 , Figure 9 As shown, an upper retainer 6 and a lower retainer 7 are arranged between the outer cylinders 11. The upper retainer 6 is fixedly connected to the base, the lower retainer 7 is sleeved with the outer cylinder 11. A indexing mechanism 4 is arranged at the central part of the upper retainer 6, and the indexing mechanism 4 is connected to the upper connection assembly 3. A lifting mechanism 8 is arranged on the lower side of the upper retainer 6, and the lifting mechanism 8 drives the lower retainer 7 to lift and control.

[0037] As Figure 5 , Figure 7 , Figure 8 As shown, the lifting mechanism 8 includes a suspension column 80 arranged on the lower side of the upper retainer 6. The lower retainer 7 is inserted into the suspension column 80. A vertical rack 81 is arranged on the suspension column 80. A climbing gear 82 is rotatably installed on the lower retainer 7. The climbing gear 82 meshes with the vertical rack 81. The climbing gear 82 is connected to a climbing motor 83. A clamping assembly is arranged at the joint between the lower retainer 7 and the outer cylinder 11.

[0038] Specifically, to facilitate the replacement of the damaged ceramic membrane, first, the upper connection component 3 is separated from the upper side of the ceramic membrane installation component 1 and rotated by the indexing mechanism 4, so as to reserve space for the subsequent lifting of the outer cylinder 11. The damaged outer cylinder 11 is clamped by the clamping component, while the remaining outer cylinders 11 are in a separated state from the lower cage 7. In the lifting mechanism 8, the climbing motor 83 drives the lower cage 7 to move upward, thereby driving the damaged outer cylinder 11 to move upward synchronously, so that the outer cylinder 11 is separated from the inner ceramic membrane body 10. The sinking control component 5 is combined to drive the lower connection component 2 to sink, facilitating the installation of the new ceramic membrane body 10. After cleaning up the broken ceramic membrane body 10, the new ceramic membrane body 10 is connected to the lower connection component 2. The sinking control component 5 is combined to drive the lower connection component 2 to rise, and at the same time, the lifting mechanism 8 is controlled to lower the outer cylinder 11, thereby completing the mating connection between the outer cylinder 11 and the lower connection component 2. Finally, the indexing mechanism 4 is combined to control the upper connection component 3 to cooperate with the upper end of the outer cylinder 11, completing the replacement operation of the broken ceramic membrane body 10.

[0039] Further, as Figure 5 , Figure 8 , Figure 9 shown, the clamping component includes wrapping blocks 84 uniformly arranged at the fitting part between the lower cage 7 and the outer cylinder 11. A spring column 85 is arranged in the wrapping block 84, and the spring column 85 is connected with an electromagnet. A fitting groove is arranged at the position of the outer cylinder 11 corresponding to the electromagnet, and an iron block is inlaid and installed in the fitting groove. When the electromagnet is energized, it adsorbs and clamps with the iron block in the fitting groove, and when the lifting mechanism 8 climbs, it synchronously drives the outer cylinder 11 to rise upward.

[0040] Specifically, by uniformly arranging the wrapping blocks 84 on the lower cage 7 and installing the spring columns 85, when operating on the outer cylinder 11 where the ceramic membrane body 10 is broken, the electromagnet is controlled to be energized. Under the action of the spring column 85, the electromagnet adsorbs and cooperates with the iron block in the fitting groove, completing the clamping operation between the lower cage 7 and the corresponding outer cylinder 11, so as to perform the lifting operation driven by the lifting mechanism 8.

[0041] Further, as Figure 2 , Figure 4 , Figure 9As shown, the upper connection component 3 includes a first mounting disc 30 disposed at the central part of multiple groups of outer cylinders 11. A rotary joint 34 is provided on the first mounting disc 30. The first mounting disc 30 is connected to the conveying pipe 104 through the rotary joint 34. Upper plugs 33 are uniformly arranged at the circumferential part of the first mounting disc 30 corresponding to the outer cylinders 11. A first fixing rod 31 is provided between the first mounting disc 30 and the upper plugs 33. The upper plugs 33 are in sealing fit with the outer cylinders 11 and the upper end parts of the ceramic membrane bodies 10. A dispersion pipe 32 is provided between the upper plugs 33 and the first mounting disc 30. The indexing mechanism 4 is disposed between the upper retaining frame 6 and the first mounting disc 30.

[0042] Specifically, the upper plugs 33 are in sealing fit with the outer cylinders 11 and the end parts of the inner ceramic membrane bodies 10. After passing through the first mounting disc 30, the conveying pipe 104 combines with the dispersion pipe 32 to disperse the catalytic slurry into the upper plugs 33. After passing through the upper plugs 33, the catalytic slurry is sent into the inner side of the ceramic membrane bodies 10. The catalytic slurry is filtered and permeated under pressure to the part between the ceramic membrane bodies 10 and the outer cylinders 11 to achieve filtration. Most of the catalytic slurry passes through the ceramic membrane bodies 10 and then combines with the lower connection component 2 and the return pipe 105 to reach the return pipe 101.

[0043] Further, as Figure 5 、 Figure 6 shown, the indexing mechanism 4 includes a fixing frame 40 disposed on the upper retaining frame 6. A rotary seat 41 is rotatably mounted on the fixing frame 40. A telescopic column 44 is provided on the rotary seat 41. The rotary seat 41 is connected to the first mounting disc 30 through the telescopic column 44. A connecting flange 42 is provided on the side of the first mounting disc 30. A lifting cylinder 43 is provided between the connecting flange 42 and the fixing frame 40. A sector gear 45 is provided at the edge of the rotary seat 41. A driving gear 46 is rotatably mounted at the edge of the fixing frame 40. The driving gear 46 meshes with the sector gear 45. The driving gear 46 is connected to a driving motor 47.

[0044] Specifically, when it is necessary to replace the broken ceramic membrane body 10, first, the upper connection component 3 on the upper side of the ceramic membrane installation component 1 needs to be separated and indexed. The lifting cylinder 43 is used to control the first mounting disc 30 to rise, driving the upper plugs 33 to disengage from the outer cylinders 11 and the ceramic membrane bodies 10. Subsequently, the driving motor 47 and the driving gear 46 are combined to drive the rotary seat 41 to rotate, and then drive the first mounting disc 30 to rotate, so that the upper plugs 33 are disengaged from the area directly above the outer cylinders 11, facilitating the lifting operation of the damaged outer cylinders 11.

[0045] Further, as Figure 2 、 Figure 4 、 Figure 9As shown, the lower connection component 2 includes an installation disk two 20. Fixing rods two 26 are evenly arranged at the edge of the installation disk two 20. The fixing rods two 26 are connected with a lower plug 22. The lower plug 22 cooperates with the outer cylinder 11 and the lower end of the ceramic membrane body 10. A sliding rod 24 is arranged on the base. A support frame 23 is slidably installed on the sliding rod 24. A connecting rod 25 is arranged at the upper end of the support frame 23 corresponding to the position of the fixing rod two 26. The connecting rod 25 is connected with the fixing rod two 26. A converging pipe 21 is arranged between the lower plug 22 and the installation disk two 20. The installation disk two 20 is connected with a return pipe 105. The support frame 23 is connected with a sinking control component 5.

[0046] Specifically, the support frame 23 is lifted and lowered through the sinking control component 5. Then, the installation disk two 20 and the lower plug 22 are arranged. When replacing the damaged ceramic membrane body 10, after the outer cylinder 11 is lifted by combining with the lifting mechanism 8, due to the position limitation of the upper retainer 6, the lifting height of the outer cylinder 11 is not enough to replace and install a new ceramic membrane body 10. Therefore, it is necessary to combine the sinking control component 5 to drive the lower connection component 2 to further descend, so as to install a new ceramic membrane body 10.

[0047] Further, as Figure 11 、 Figure 12 shown, the sinking control component 5 includes a rotating frame 50 rotatably arranged at the bottom of the support frame 23. The rotating frames 50 are symmetrically arranged. A horizontal rod 51 is arranged between the rotating frames 50. A horizontal rack 52 is arranged on the base. Clamping guide rails 53 are arranged on both sides of the horizontal rack 52. A clamping frame 54 is slidably installed between the clamping guide rails 53. A mating gear 55 is rotatably installed between the clamping frames 54. The mating gear 55 meshes with the horizontal rack 52. The mating gear 55 is connected with an adjusting motor 56. A connecting rod 57 is rotatably installed between the clamping frame 54 and the horizontal rod 51.

[0048] Specifically, when it is necessary to control the lower connection component 2 to sink, the adjusting motor 56 drives the mating gear 55 to mesh with the horizontal rack 52. The clamping frame 54 moves along the clamping guide rail 53, and then pulls the horizontal rod 51 to make the rotating frame 50 rotate, so as to control the support frame 23 to slide along the sliding rod 24, drive the lower connection component 2 to sink, and provide an installation space for the ceramic membrane body 10.

[0049] Further, as Figure 5 、 Figure 7 、 Figure 10As shown, a ring-shaped centralized rack 1060 is provided at the lower end of the vertical rack 81. A docking pipe 12 is provided at the bottom of the outer cylinder 11 corresponding to the position of the ring-shaped centralized rack 1060. The docking pipe 12 is docked with the ring-shaped centralized rack 1060. A ring-shaped channel 1061 is provided inside the ring-shaped centralized rack 1060. A filter recovery pipe 106 is connected to the bottom of the ring-shaped centralized rack 1060. The filter recovery pipe 106 is connected to the filter collection pipe 102.

[0050] Specifically, the filtered catalytic slurry reaches the bottom of the outer cylinder 11, is injected into the ring-shaped centralized rack 1060 through the docking pipe 12, and then enters the filter collection pipe 102 through the ring-shaped channel 1061 inside the ring-shaped centralized rack 1060 and the filter recovery pipe 106 at the bottom.

[0051] Furthermore, as Figure 4 shown, a first folding pipe 1040 is provided between the mounting disc one 30 and the conveying pipe 104. The conveying pipe 104 is arranged along the middle part of the adjacent ceramic membrane mounting assemblies 1. A solenoid valve is provided on the conveying pipe 104.

[0052] Furthermore, as Figure 3 、 Figure 4 shown, a second folding pipe 1050 is provided between the mounting disc two 20 and the return pipe 105. A first branch pipe 1051 and a second branch pipe 1052 are provided on the return pipe 105. The first branch pipe 1051 is connected to the cleaning recovery pipe 103. The second branch pipe 1052 is connected to the return material pipe 101. Solenoid valves are provided on the first branch pipe 1051 and the second branch pipe 1052.

[0053] Specifically, the arrangements of the first folding pipe 1040 and the second folding pipe 1050 facilitate providing the lifting space for the upper connection assembly 3 and the lower connection assembly 2. After the filtration efficiency of the ceramic membrane body 10 decreases, the ceramic membrane body 10 needs to be reversely cleaned. The specific operation steps are as follows: First, close the solenoid valve on the conveying pipe 104, and then close the solenoid valve on the second branch pipe 1052. Combine the filter recovery pipe 106 and the filter collection pipe 102 to reversely pump the filtered catalytic slurry into the ring-shaped centralized rack 1060. The catalytic slurry enters the area between the outer cylinder 11 and the ceramic membrane body 10 through the docking pipe 12. Under the action of pressure, the catalytic slurry penetrates into the ceramic membrane body 10, and the blockage carried in the pores falls to the lower side of the ceramic membrane body 10. Since the solenoid valve on the upper conveying pipe 104 is closed, the reversely cleaned catalytic slurry carries the blockage and enters the return pipe 105 through the lower connection assembly 2, and enters the cleaning recovery pipe 103 through the first branch pipe 1051. After the cleaning is completed, close the solenoid valve on the first branch pipe 1051, and reopen the solenoid valves on the second branch pipe 1052 and the conveying pipe 104 to continue the filtration operation of the catalytic slurry.

[0054] The working principle of the embodiments of the present invention is as follows:

[0055] As Figures 1 - 12As shown, the ceramic membrane body 10 is coaxially installed with the outer cylinder 11, and the formed area is used to collect the filtered catalytic slurry. The bottom side wall of the outer cylinder 11 is communicated with the filtration collection pipe 102, and the collected catalytic slurry is sent into the filtration collection pipe 102. Among them, the feed pipe 100 sends the unfiltered catalytic slurry into the ceramic membrane body 10 through the conveying pipe 104 and the upper connection assembly 3. Part of the catalytic slurry enters the area between the ceramic membrane body 10 and the outer cylinder 11 after filtration, and the rest of the catalytic slurry directly enters the return pipe 101 through the lower connection assembly 2 and the return pipe 105. A passage is formed between the feed pipe 100 and the return pipe 101, so as to perform cyclic filtration on the catalytic slurry. In order to facilitate the replacement of the damaged ceramic membrane, first, the upper connection assembly 3 is separated from the upper side of the ceramic membrane installation assembly 1 and rotated by combining with the rotation mechanism 4, so as to reserve the space for the subsequent lifting of the outer cylinder 11. The damaged outer cylinder 11 is clamped by the clamping assembly, while the rest of the outer cylinders 11 are in a separated state from the lower holder 7. In the lifting mechanism 8, the climbing motor 83 drives the lower holder 7 to move upward, so as to drive the damaged outer cylinder 11 to move upward synchronously, so that the outer cylinder 11 is separated from the inner ceramic membrane body 10. The sinking control assembly 5 is combined to drive the lower connection assembly 2 to sink, which is convenient for the installation of the new ceramic membrane body 10. After cleaning up the broken ceramic membrane body 10, the new ceramic membrane body 10 is connected to the lower connection assembly 2. The sinking control assembly 5 is combined to drive the lower connection assembly 2 to rise, and at the same time, the lifting mechanism 8 is controlled to make the outer cylinder 11 descend, so as to complete the mating connection between the outer cylinder 11 and the lower connection assembly 2. Finally, the rotation mechanism 4 is combined to control the upper connection assembly 3 to cooperate with the upper end of the outer cylinder 11, so as to complete the replacement operation of the broken ceramic membrane body 10. By uniformly arranging the wrapping blocks 84 on the lower holder 7 and installing the spring columns 85, when it is necessary to operate on the outer cylinder 11 with the broken ceramic membrane body 10, the electromagnet is controlled to be energized. Under the action of the spring column 85, the electromagnet adsorbs and cooperates with the iron block in the mating groove, so as to complete the clamping operation between the lower holder 7 and the corresponding outer cylinder 11, and thus perform the lifting operation under the drive of the lifting mechanism 8. The upper plug 33 is hermetically and cooperatively installed with the outer cylinder 11 and the end of the inner ceramic membrane body 10. The conveying pipe 104 passes through the installation disc 1 30 and then combines with the dispersion pipe 32 to disperse the catalytic slurry into the upper plug 33. After passing through the upper plug 33, the catalytic slurry is sent into the inner side of the ceramic membrane body 10. The catalytic slurry is filtered and permeated to the part between the ceramic membrane body 10 and the outer cylinder 11 under the action of pressure to achieve filtration, and most of the catalytic slurry reaches the return pipe 101 through the lower connection assembly 2 and the return pipe 105 after passing through the ceramic membrane body 10.When it is necessary to replace the broken ceramic membrane body 10, first, the upper connection component 3 on the upper side of the ceramic membrane installation component 1 needs to be separated and rotated. The lifting cylinder 43 is used to control the lifting of the first installation disc 30, driving the upper plug 33 to disengage from the outer cylinder 11 and the ceramic membrane body 10. Subsequently, the driving motor 47 and the driving gear 46 are combined to drive the rotating seat 41 to rotate, thereby driving the first installation disc 30 to rotate, so that the upper plug 33 disengages from the area directly above the outer cylinder 11, facilitating the lifting operation of the damaged outer cylinder 11. The installation support frame 23 is lifted and lowered by the sinking control component 5, and the second installation disc 20 and the lower plug 22 are provided. When replacing the damaged ceramic membrane body 10, after the outer cylinder 11 is lifted by the lifting mechanism 8, due to the position limitation of the upper retainer 6, the lifting height of the outer cylinder 11 is not sufficient to replace and install a new ceramic membrane body 10. Therefore, it is necessary to combine the sinking control component 5 to drive the lower connection component 2 to further descend, so as to install a new ceramic membrane body 10. When it is necessary to control the lower connection component 2 to sink, the adjustment motor 56 drives the mating gear 55 to engage with the horizontal rack 52, and the clamping frame 54 moves along the clamping guide rail 53, thereby pulling the horizontal rod 51 to make the rotating frame 50 rotate, so as to control the support frame 23 to slide along the slide rod 24, driving the lower connection component 2 to sink, and providing an installation space for the ceramic membrane body 10. Specifically, the first folding tube 1040 and the second folding tube 1050 are provided to facilitate the lifting space of the upper connection component 3 and the lower connection component 2. After the filtration efficiency of the ceramic membrane body 10 decreases, it is necessary to perform reverse cleaning on the ceramic membrane body 10. The specific operation steps are as follows: First, close the solenoid valve on the delivery pipe 104, and then close the solenoid valve on the second branch pipe 1052. The filtered catalytic slurry is reversely pumped into the annular centralizer 1060 through the filtration recovery pipe 106 and the filtration collection pipe 102. The catalytic slurry enters the area between the outer cylinder 11 and the ceramic membrane body 10 through the docking pipe 12. Under the action of pressure, the catalytic slurry penetrates into the ceramic membrane body 10, and the blockage in the pores is carried and falls to the lower side of the ceramic membrane body 10. Since the solenoid valve on the upper delivery pipe 104 is closed, the reversely cleaned catalytic slurry with blockage enters the return pipe 105 through the lower connection component 2, and enters the cleaning recovery pipe 103 through the first branch pipe 1051. After the cleaning is completed, close the solenoid valve on the first branch pipe 1051, and reopen the solenoid valves on the second branch pipe 1052 and the delivery pipe 104 to continue the filtration operation of the catalytic slurry.

[0056] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention. Any reference signs in the claims shall not be construed as limiting the claimed claims.

[0057] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for filtering catalytic slurry oil using a ceramic membrane, comprising a feed pipe (100), a return pipe (101), a filtration and collection pipe (102), and a cleaning and recovery pipe (103) fixedly installed on a base, characterized in that, A plurality of ceramic membrane mounting assemblies (1) are annularly distributed and installed between the feed pipe (100) and the return pipe (101). The ceramic membrane mounting assembly (1) includes a coaxially installed ceramic membrane body (10) and an outer cylinder (11). Upper and lower connection assemblies (3) and (2) are respectively installed at the upper and lower ends of the whole formed by the plurality of ceramic membrane mounting assemblies (1). The upper connection assembly (3) is connected to the feed pipe (100) through a conveying pipe (104), and the lower connection assembly (2) is connected to the return pipe (101) through a return pipe (105). The lower connection assembly (2) is connected with a sinking control assembly (5). A communication is provided between the side wall of the outer cylinder (11) and the filtration and collection pipe (102). An upper cage (6) and a lower cage (7) are provided between the outer cylinders (11). The upper cage (6) is fixedly connected to the base, and the lower cage (7) is sleeved with the outer cylinder (11). A indexing mechanism (4) is provided at the central part of the upper cage (6), and the indexing mechanism (4) is connected to the upper connection assembly (3). A lifting mechanism (8) is provided on the lower side of the upper cage (6), and the lifting mechanism (8) drives the lower cage (7) to perform lifting control. The lifting mechanism (8) includes a suspension column (80) provided on the lower side of the upper cage (6). The lower cage (7) is inserted into the suspension column (80). A vertical rack (81) is provided on the suspension column (80). A climbing gear (82) is rotatably installed on the lower cage (7). The climbing gear (82) meshes with the vertical rack (81). The climbing gear (82) is connected to a climbing motor (83). A clamping assembly is provided at the fitting part between the lower cage (7) and the outer cylinder (11).

2. The device for catalytic slurry oil filtration using a ceramic membrane according to claim 1, wherein The clamping assembly includes wrapping blocks (84) uniformly arranged at the fitting part between the lower cage (7) and the outer cylinder (11). A spring column (85) is provided in the wrapping block (84). The spring column (85) is connected to an electromagnet. A matching groove is provided on the outer cylinder (11) corresponding to the electromagnet, and an iron block is inlaid and installed in the matching groove. When the electromagnet is energized, it adsorbs and clamps with the iron block in the matching groove. When the lifting mechanism (8) climbs, it synchronously drives the outer cylinder (11) to rise upward.

3. The device for filtering catalytic slurry oil by using a ceramic membrane according to claim 1, characterized in that, The upper connection assembly (3) includes a mounting disc one (30) provided at the central part of a plurality of outer cylinders (11). A rotary joint (34) is provided on the mounting disc one (30). The mounting disc one (30) is connected to the conveying pipe (104) through the rotary joint (34). Upper plugs (33) are uniformly arranged at the circumferential part of the mounting disc one (30) corresponding to the outer cylinders (11). A fixing rod one (31) is provided between the mounting disc one (30) and the upper plugs (33). The upper plugs (33) are in sealing cooperation with the upper ends of the outer cylinders (11) and the ceramic membrane body (10). A dispersion pipe (32) is provided between the upper plugs (33) and the mounting disc one (30). The indexing mechanism (4) is provided between the upper cage (6) and the mounting disc one (30).

4. The device for catalytic slurry oil filtration using a ceramic membrane according to claim 3, characterized in that, The indexing mechanism (4) includes a fixed frame (40) provided on the upper cage (6). A rotating seat (41) is rotatably mounted on the fixed frame (40). A telescopic column (44) is provided on the rotating seat (41). The rotating seat (41) is connected to the first mounting disc (30) through the telescopic column (44). A connecting flange (42) is provided on the side of the first mounting disc (30). A lifting cylinder (43) is provided between the connecting flange (42) and the fixed frame (40). A sector gear (45) is provided on the edge of the rotating seat (41). A driving gear (46) is rotatably mounted on the edge of the fixed frame (40). The driving gear (46) meshes with the sector gear (45). The driving gear (46) is connected to a driving motor (47).

5. The device for catalytic slurry oil filtration using a ceramic membrane according to claim 1, wherein, The lower connecting assembly (2) includes a second mounting disc (20). Fixed rods II (26) are evenly provided on the edge of the second mounting disc (20). The fixed rods II (26) are connected to lower plugs (22). The lower plugs (22) cooperate with the lower ends of the outer cylinder (11) and the ceramic membrane body (10). A sliding rod (24) is provided on the base. A support frame (23) is slidably mounted on the sliding rod (24). A connecting rod (25) is provided at the upper end of the support frame (23) corresponding to the position of the fixed rod II (26). The connecting rod (25) is connected to the fixed rod II (26). A converging pipe (21) is provided between the lower plug (22) and the second mounting disc (20). The second mounting disc (20) is connected to a return pipe (105). The support frame (23) is connected to a sinking control assembly (5).

6. The device for catalytic slurry oil filtration using ceramic membranes according to claim 5, wherein, The sinking control assembly (5) includes a rotating frame (50) rotatably provided at the bottom of the support frame (23). The rotating frames (50) are symmetrically arranged. A horizontal rod (51) is provided between the rotating frames (50). A horizontal rack (52) is provided on the base. Clamping guide rails (53) are provided on both sides of the horizontal rack (52). A clamping frame (54) is slidably mounted between the clamping guide rails (53). A mating gear (55) is rotatably mounted between the clamping frames (54). The mating gear (55) meshes with the horizontal rack (52). The mating gear (55) is connected to an adjusting motor (56). A connecting rod (57) is rotatably mounted between the clamping frame (54) and the horizontal rod (51).

7. The device for filtering catalytic slurry oil by using a ceramic membrane according to claim 1, wherein, The lower end of the vertical rack (81) is provided with an annular concentrating frame (1060). A docking pipe (12) is provided at the bottom of the outer cylinder (11) corresponding to the position of the annular concentrating frame (1060). The docking pipe (12) is docked with the annular concentrating frame (1060). An annular channel (1061) is provided in the annular concentrating frame (1060). The bottom of the annular concentrating frame (1060) is connected to a filtering and recycling pipe (106). The filtering and recycling pipe (106) is connected to a filtering and collecting pipe (102).

8. The device for catalytic slurry oil filtration using a ceramic membrane according to claim 3, wherein, A first folding pipe (1040) is provided between the mounting disc one (30) and the conveying pipe (104). The conveying pipe (104) is arranged along the middle part of adjacent ceramic membrane mounting assemblies (1), and a solenoid valve is provided on the conveying pipe (104).

9. The device for catalytic slurry oil filtration using ceramic membranes according to claim 5, characterized in that, A second folding pipe (1050) is provided between the mounting disc two (20) and the return pipe (105). A first branch pipe (1051) and a second branch pipe (1052) are provided on the return pipe (105). The first branch pipe (1051) is connected to the cleaning recovery pipe (103), and the second branch pipe (1052) is connected to the return material pipe (101). Solenoid valves are provided on the first branch pipe (1051) and the second branch pipe (1052).

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