A device for filtering catalytic oil slurry by using ceramic membrane

Abstract

This invention discloses a device for filtering catalytic oil slurry using ceramic membranes, relating to the field of filtration equipment technology. It includes multiple sets of ceramic membrane mounting assemblies arranged in a ring. Each ceramic membrane mounting assembly includes a ceramic membrane body and an outer cylinder. An upper connecting assembly and a lower connecting assembly are respectively installed at the upper and lower ends of the assembly. The lower connecting assembly is connected to a sinking control assembly. The side wall of the outer cylinder is connected to a filter collection pipe. An upper retainer and a lower retainer are provided between the outer cylinders, with the lower retainer sleeved to the outer cylinder. A rotation mechanism is provided at the center of the upper retainer, and a lifting mechanism is provided on the lower side of the upper retainer. The lifting mechanism drives the lower retainer to move up and down. By lifting the outer cylinder where the ceramic membrane body breaks, and combining this with the sinking control assembly to sink the lower connecting assembly, the ceramic membrane body can be quickly replaced, ensuring the filtration efficiency of the catalytic oil slurry.

Description

Technical Field

[0001] This invention relates to the field of filtration equipment technology, specifically a device for filtering catalytic oil slurry using a ceramic membrane. Background Technology

[0002] Ceramic membrane filtration of catalytic slurry is a commonly used filtration technology in the petrochemical industry. Ceramic membranes have a pore structure with specific pore sizes. During filtration of catalytic slurry, different components in the slurry are separated under high pressure based on their molecular or particle size. For example, smaller light oil molecules and some smaller colloidal molecules can pass through the pores of the ceramic membrane, while larger asphaltene aggregates and fine catalyst powder are retained.

[0003] Ceramic membranes have good high-temperature resistance. The temperature of the catalytic slurry is around 300-500 degrees Celsius, and the ceramic membrane can stably filter under such high-temperature conditions. However, ceramic membranes are prone to damage during pressure filtration. When the ceramic membrane is damaged in the existing ceramic membrane filtration device for catalytic slurry, the replacement process is cumbersome, which greatly affects the overall filtration efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide an apparatus for filtering catalytic oil slurry using a ceramic membrane, so as to solve the problems mentioned in the background art.

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

[0006] A device for filtering catalytic oil slurry using a ceramic membrane includes a feed pipe, a return pipe, a filter collection pipe, and a cleaning and recovery pipe fixedly installed on a base. Multiple sets of ceramic membrane mounting assemblies are arranged in a ring between the feed pipe and the return pipe. Each ceramic membrane mounting assembly includes a ceramic membrane body and an outer cylinder mounted coaxially. An upper connecting assembly and a lower connecting assembly are respectively installed at the upper and lower ends of the assembly. The upper connecting assembly is connected to the feed pipe through a conveying pipe, and the lower connecting assembly is connected to the return pipe through a return pipe. The lower connecting assembly is connected to a sinking control assembly. The side wall of the outer cylinder is in communication with the filter collection pipe.

[0007] An upper retainer and a lower retainer are provided between the outer cylinders. The upper retainer is fixedly connected to the base, and the lower retainer is sleeved with the outer cylinder. A shifting mechanism is provided at the center of the upper retainer, and the shifting mechanism is connected to the upper connecting assembly. A lifting mechanism is provided on the lower side of the upper retainer, and the lifting mechanism drives the lower retainer to perform lifting and lowering control.

[0008] The lifting mechanism includes a suspension column disposed on the lower side of the upper retainer, the lower retainer being inserted into the suspension column, a vertical rack being disposed on the suspension column, a climbing gear being rotatably mounted on the lower retainer, the climbing gear meshing with the vertical rack, the climbing gear being connected to a climbing motor, and a snap-fit ​​assembly being disposed at the contact point between the lower retainer and the outer cylinder.

[0009] As a further embodiment of the present invention: the snap-fit ​​assembly includes wrapping blocks evenly distributed at the contact points between the lower retainer and the outer cylinder, a spring post is provided inside the wrapping block, the spring post is connected to an electromagnet, a mating groove is provided at the part of the outer cylinder corresponding to the electromagnet, an iron block is embedded in the mating groove, when the electromagnet is energized, it is attracted and snapped into the mating groove with the iron block, and when the lifting mechanism climbs, it synchronously drives the outer cylinder to rise.

[0010] As a further embodiment of the present invention: the upper connecting assembly includes a mounting disc 1 disposed at the center of multiple sets of outer cylinders, the mounting disc 1 being provided with a rotating joint, the mounting disc 1 being connected to the conveying pipe through the rotating joint, upper plugs being evenly disposed around the mounting disc at the corresponding positions of the outer cylinders, a fixing rod 1 being disposed between the mounting disc 1 and the upper plugs, the upper plugs being sealed to the upper ends of the outer cylinders and the ceramic membrane body, a dispersing tube being disposed between the upper plugs and the mounting disc 1, and the indexing mechanism being disposed between the upper retainer and the mounting disc 1.

[0011] As a further embodiment of the present invention: the indexing mechanism includes a fixed frame mounted on an upper retainer, a rotating seat rotatably mounted on the fixed frame, a telescopic column mounted on the rotating seat, the rotating seat being connected to a mounting disc through the telescopic column, a connecting flange being provided on the side of the mounting disc, a lifting cylinder being provided between the connecting flange and the fixed frame, a sector gear being provided on the edge of the rotating seat, a drive gear being rotatably mounted on the edge of the fixed frame, the drive gear meshing with the sector gear, and a drive motor being connected to the drive gear.

[0012] As a further embodiment of the present invention: the lower connecting assembly includes a second mounting disc, the edge of which is uniformly provided with second fixing rods, the second fixing rods being connected to a lower plug, the lower plug cooperating with the lower end of the outer cylinder and the ceramic membrane body, a sliding rod being provided on the base, a support frame being slidably mounted on the sliding rod, a connecting rod being provided at the upper end of the support frame corresponding to the second fixing rod, the connecting rod being connected to the second fixing rod, a confluence pipe being provided between the lower plug and the second mounting disc, the second mounting disc being connected to a return pipe, and the support frame being connected to a sinking control assembly.

[0013] As a further embodiment of the present invention: the sinking control component includes a rotating frame rotatably disposed at the bottom of the support frame, the rotating frames being symmetrically arranged, a horizontal bar being disposed between the rotating frames, a horizontal rack being disposed on the base, a locking guide rail being disposed on both sides of the horizontal rack, a locking bracket being slidably installed between the locking guide rails, a mating gear being rotatably installed between the locking brackets, the mating gear meshing with the horizontal rack, the mating gear being connected to an adjusting motor, and a connecting rod being rotatably installed between the locking bracket and the horizontal bar.

[0014] As a further embodiment of the present invention: an annular concentrator is provided at the lower end of the vertical rack, and a connecting pipe is provided at the bottom of the outer cylinder corresponding to the annular concentrator. The connecting pipe and the annular concentrator are connected to each other. An annular channel is provided inside the annular concentrator. A filter recovery pipe is connected to the bottom of the annular concentrator, and the filter recovery pipe is connected to the filter collection pipe.

[0015] As a further embodiment of the present invention: a folded tube is provided between the mounting disc and the conveying pipe, the conveying pipe is provided along the middle part of the adjacent ceramic membrane mounting components, and a solenoid valve is provided on the conveying pipe.

[0016] As a further embodiment of the present invention: a folded pipe is provided between the mounting disc and the return pipe, and a branch pipe 1 and a branch pipe 2 are provided on the return pipe. The branch pipe 1 is connected to the cleaning and recovery pipe, and the branch pipe 2 is connected to the return material pipe. Solenoid valves are provided on the branch pipe 1 and the branch pipe 2.

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

[0018] (1) The damaged outer cylinder is snapped together by the snap-fit ​​assembly, while the remaining outer cylinders are separated from the lower retainer. The lifting mechanism uses a climbing motor to drive the lower retainer 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. Combined with the sinking control assembly, the lower connecting assembly is driven to sink, which facilitates the installation of the new ceramic membrane body. After the broken ceramic membrane body is cleaned up, the new ceramic membrane body is connected to the lower connecting assembly. Combined with the sinking control assembly, the lower connecting assembly is driven to rise, while the lifting mechanism is controlled to lower the outer cylinder, thereby completing the connection between the outer cylinder and the lower connecting assembly. Finally, combined with the indexing mechanism, the upper connecting assembly is controlled to cooperate with the upper end of the outer cylinder to complete the replacement of the broken ceramic membrane body.

[0019] (2) The support frame is raised and lowered by the sinking control component, and then the second installation disc and the lower plug are set. When replacing the damaged ceramic membrane body, the outer cylinder is raised by the lifting mechanism. Due to the position limitation of the upper retainer, the lifting height of the outer cylinder is not enough to replace and install the new ceramic membrane body. Therefore, it is necessary to combine the sinking control component to drive the lower connecting component to descend further, so as to install the new ceramic membrane body. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the assembly of the present invention.

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

[0022] Figure 3 This is a schematic diagram showing the connection between the return pipe, the return material pipe, and the cleaning and recovery pipe in this invention.

[0023] Figure 4 This is a schematic diagram of the installation of the lower connecting component and the upper connecting component in this invention.

[0024] Figure 5 This is a schematic diagram of the connection structure between the ceramic membrane mounting assembly and the upper and lower retainers in this invention.

[0025] Figure 6 for Figure 5 Enlarged structural diagram at point A in the middle.

[0026] Figure 7 for Figure 5 Enlarged structural diagram at point B.

[0027] Figure 8 for Figure 5 Enlarged structural diagram at point C.

[0028] Figure 9 This is a schematic diagram of the installation of the ceramic membrane body in this invention.

[0029] Figure 10 This is a cross-sectional schematic diagram of the annular central frame in this invention.

[0030] Figure 11 This is a schematic diagram of the installation of the sinking control component in this invention.

[0031] Figure 12 for Figure 11 Enlarged structural diagram at point D.

[0032] In the diagram: 100, Feed pipe; 101, Return pipe; 102, Filter collection pipe; 103, Cleaning and recovery pipe; 104, Conveying pipe; 1040, Folded pipe one; 105, Return pipe; 1050, Folded pipe two; 1051, Branch pipe one; 1052, Branch pipe two; 106, Filter recovery pipe; 1060, Annular central frame; 1061, Annular channel; 1, Ceramic membrane installation assembly; 10, Ceramic membrane body; 11, Outer cylinder; 12, Connecting pipe; 2, Lower connecting assembly; 20, Mounting disc two; 21, Merging pipe; 22, Lower plug; 23, Support frame; 24, Sliding rod; 25, Connecting rod; 26, Fixing rod two; 3, Upper connecting assembly; 30, Mounting disc one; 31. Fixed rod 1; 32. Dispersion tube; 33. Upper plug; 34. Rotary joint; 4. Indexing mechanism; 40. Fixed frame; 41. Rotating seat; 42. Connecting flange; 43. Lifting cylinder; 44. Telescopic column; 45. Sector gear; 46. Drive gear; 47. Drive motor; 5. Sinking control assembly; 50. Rotating frame; 51. Horizontal rod; 52. Horizontal rack; 53. Snap-fit ​​guide rail; 54. Snap-fit ​​frame; 55. Matching gear; 56. Adjusting motor; 57. Connecting rod; 6. Upper retainer; 7. Lower retainer; 8. Lifting mechanism; 80. Suspension column; 81. Vertical rack; 82. Climbing gear; 83. Climbing motor; 84. Wrapping block; 85. Spring column. Detailed Implementation

[0033] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 9 As shown, an apparatus for filtering catalytic slurry using a ceramic membrane includes a feed pipe 100, a return pipe 101, a filter collection pipe 102, and a cleaning and recovery pipe 103 fixedly installed on a base. Multiple sets of ceramic membrane mounting assemblies 1 are arranged in a ring between the feed pipe 100 and the return pipe 101. Each ceramic membrane mounting assembly 1 includes a ceramic membrane body 10 and an outer cylinder 11 coaxially mounted. The upper and lower ends of the assembly composed of multiple sets of ceramic membrane mounting assemblies 1 are respectively equipped with an upper connecting assembly 3 and a lower connecting assembly 2. The upper connecting assembly 3 is connected to the feed pipe 100 through a conveying pipe 104, and the lower connecting assembly 2 is connected to the return pipe 101 through a return pipe 105. The lower connecting assembly 2 is connected to a sinking control assembly 5. The side wall of the outer cylinder 11 is connected to the filter collection pipe 102.

[0035] Specifically, the ceramic membrane body 10 and the outer cylinder 11 are coaxially mounted, with the area in between used to collect the filtered catalytic slurry. The outer cylinder 11 is connected to the filter collection pipe 102 near its bottom side wall, and the filtered catalytic slurry is sent into the filter collection pipe 102. The feed pipe 100, through the conveying pipe 104, sends the unfiltered catalytic slurry into the ceramic membrane body 10 via the upper connecting component 3. Part of the catalytic slurry is filtered and enters the area between the ceramic membrane body 10 and the outer cylinder 11, while the remaining catalytic slurry directly enters the return pipe 101 through the lower connecting component 2 and the return pipe 105. A passage is formed between the feed pipe 100 and the return pipe 101, thereby circulating and filtering the catalytic slurry.

[0036] like Figure 2 , Figure 4 , Figure 5 , Figure 9 As shown, an upper retainer 6 and a lower retainer 7 are provided between the outer cylinders 11. The upper retainer 6 is fixedly connected to the base, and the lower retainer 7 is sleeved with the outer cylinder 11. A shifting mechanism 4 is provided at the center of the upper retainer 6. The shifting mechanism 4 is connected to the upper connecting assembly 3. A lifting mechanism 8 is provided on the lower side of the upper retainer 6. The lifting mechanism 8 drives the lower retainer 7 to perform lifting and lowering control.

[0037] like Figure 5 , Figure 7 , Figure 8 As shown, the lifting mechanism 8 includes a suspension column 80 disposed on the lower side of the upper retainer 6, the lower retainer 7 being inserted into the suspension column 80, the suspension column 80 being provided with a vertical rack 81, the lower retainer 7 being rotatably mounted with a climbing gear 82, the climbing gear 82 being meshed with the vertical rack 81, the climbing gear 82 being connected to a climbing motor 83, and the contact portion between the lower retainer 7 and the outer cylinder 11 being provided with a snap-fit ​​assembly.

[0038] Specifically, in order to facilitate the replacement of the damaged ceramic membrane, the upper connecting component 3 is first separated from the upper side of the ceramic membrane mounting component 1 and rotated using the rotation mechanism 4, thereby reserving space for the subsequent lifting of the outer cylinder 11. The damaged outer cylinder 11 is snapped into place by the snap-fit ​​assembly, while the remaining outer cylinders 11 are separated from the lower retainer 7. The lifting mechanism 8 uses the climbing motor 83 to drive the lower retainer 7 upward, thereby driving the damaged outer cylinder 11 upward synchronously, so that the outer cylinder 11 is separated from the inner ceramic membrane body 10. Combined with the sinking control assembly 5, the lower connecting assembly 2 is driven to sink, which facilitates the installation of the new ceramic membrane body 10. After the broken ceramic membrane body 10 is cleaned up, the new ceramic membrane body 10 is connected to the lower connecting assembly 2. Combined with the sinking control assembly 5, the lower connecting assembly 2 is driven to rise, while the lifting mechanism 8 is controlled to lower the outer cylinder 11, thereby completing the connection between the outer cylinder 11 and the lower connecting assembly 2. Finally, combined with the indexing mechanism 4, the upper connecting assembly 3 is controlled to engage with the upper end of the outer cylinder 11 to complete the replacement of the broken ceramic membrane body 10.

[0039] Furthermore, such as Figure 5 , Figure 8 , Figure 9 As shown, the snap-fit ​​assembly includes wrapping blocks 84 evenly distributed at the contact points between the lower retainer 7 and the outer cylinder 11. A spring post 85 is provided inside the wrapping block 84, and an electromagnet is connected to the spring post 85. A mating groove is provided on the outer cylinder 11 corresponding to the electromagnet. An iron block is embedded in the mating groove. When the electromagnet is energized, it is attracted and snapped into the mating groove with the iron block. When the lifting mechanism 8 climbs, it synchronously drives the outer cylinder 11 to rise.

[0040] Specifically, by evenly arranging wrapping blocks 84 on the lower retainer 7 and installing spring columns 85, when it is necessary to operate the outer cylinder 11 where the ceramic membrane body 10 has broken, the electromagnet is energized. Under the action of the spring column 85, the electromagnet is attracted and engaged with the iron block in the matching groove, completing the snap-fit ​​operation between the lower retainer 7 and the corresponding outer cylinder 11, thereby performing the lifting operation under the drive of the lifting mechanism 8.

[0041] Furthermore, such as Figure 2 , Figure 4 , Figure 9As shown, the upper connecting assembly 3 includes a mounting disc 30 disposed at the center of multiple sets of outer cylinders 11. The mounting disc 30 is provided with a rotating joint 34. The mounting disc 30 is connected to the conveying pipe 104 through the rotating joint 34. Upper plugs 33 are evenly disposed on the mounting disc 30 around the outer cylinder 11. A fixing rod 31 is disposed between the mounting disc 30 and the upper plug 33. The upper plug 33 is sealed to the upper end of the outer cylinder 11 and the ceramic membrane body 10. A dispersing tube 32 is disposed between the upper plug 33 and the mounting disc 30. The indexing mechanism 4 is disposed between the upper retainer 6 and the mounting disc 30.

[0042] Specifically, the upper plug 33 is sealed and installed with the outer cylinder 11 and the inner ceramic membrane body 10. The conveying pipe 104 disperses the catalytic slurry into the upper plug 33 after passing through the mounting disc 30 and the dispersion pipe 32. After passing through the upper plug 33, the catalytic slurry is sent into the inner side of the ceramic membrane body 10. Under pressure, the catalytic slurry is filtered and permeates to the part between the ceramic membrane body 10 and the outer cylinder 11 to achieve filtration. Most of the catalytic slurry passes through the ceramic membrane body 10 and then connects to the lower connecting component 2 and the return pipe 105 to reach the return pipe 101.

[0043] Furthermore, such as Figure 5 , Figure 6 As shown, the indexing mechanism 4 includes a fixed frame 40 mounted on the upper retainer 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 mounting disc 30 through the telescopic column 44. A connecting flange 42 is provided on the side of the 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 drive gear 46 is rotatably mounted on the edge of the fixed frame 40. The drive gear 46 and the sector gear 45 mesh with each other. The drive gear 46 is connected to a drive motor 47.

[0044] Specifically, when it is necessary to replace the broken ceramic membrane body 10, the upper connecting component 3 on the upper side of the ceramic membrane installation component 1 needs to be separated and rotated. The installation disc 30 is raised by the lifting cylinder 43, which drives the upper plug 33 to separate from the outer cylinder 11 and the ceramic membrane body 10. Then, the drive motor 47 and the drive gear 46 drive the rotating seat 41 to rotate, which in turn drives the installation disc 30 to rotate, so that the upper plug 33 is removed from the area directly above the outer cylinder 11, making it easier to lift the damaged outer cylinder 11.

[0045] Furthermore, such as Figure 2 , Figure 4 , Figure 9As shown, the lower connecting component 2 includes a second mounting disc 20. The second mounting disc 20 has evenly spaced fixing rods 26 along its edge. The fixing rods 26 are connected to a lower plug 22. The lower plug 22 cooperates with the lower end 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 fixing rods 26. The connecting rod 25 is connected to the fixing rods 26. A confluence pipe 21 is provided between the lower plug 22 and the second mounting disc 20. The second mounting disc 20 is connected to the return pipe 105. The support frame 23 is connected to the sinking control component 5.

[0046] Specifically, the support frame 23 is raised and lowered by the sinking control component 5, and the second installation disc 20 and the lower plug 22 are set. When replacing the damaged ceramic membrane body 10, after the outer cylinder 11 is raised in conjunction with the lifting mechanism 8, the lifting height of the outer cylinder 11 is insufficient to replace and install the new ceramic membrane body 10 due to the position limitation of the upper retainer 6. Therefore, it is necessary to use the sinking control component 5 to drive the lower connecting component 2 to descend further, so as to install the new ceramic membrane body 10.

[0047] Furthermore, such as Figure 11 , Figure 12 As shown, the sinking control component 5 includes a rotating frame 50 rotatably mounted at the bottom of the support frame 23. The rotating frames 50 are symmetrically arranged, and a horizontal rod 51 is provided between the rotating frames 50. A horizontal rack 52 is provided on the base, and a snap-fit ​​guide rail 53 is provided on both sides of the horizontal rack 52. A snap-fit ​​bracket 54 is slidably installed between the snap-fit ​​guide rails 53. A mating gear 55 is rotatably installed between the snap-fit ​​brackets 54. The mating gear 55 meshes with the horizontal rack 52. An adjusting motor 56 is connected to the mating gear 55. A connecting rod 57 is rotatably installed between the snap-fit ​​bracket 54 and the horizontal rod 51.

[0048] Specifically, when it is necessary to control the lower connecting component 2 to sink, the motor 56 drives the mating gear 55 to mesh with the horizontal rack 52, the snap-fit ​​bracket 54 moves along the snap-fit ​​guide rail 53, and then pulls the horizontal rod 51 to make the rotating frame 50 rotate, thereby controlling the support frame 23 to slide along the slide rod 24, driving the lower connecting component 2 to sink, providing installation space for the ceramic membrane body 10.

[0049] Furthermore, such as Figure 5 , Figure 7 , Figure 10As shown, an annular concentrator 1060 is provided at the lower end of the vertical rack 81, and a connecting pipe 12 is provided at the bottom of the outer cylinder 11 corresponding to the annular concentrator 1060. The connecting pipe 12 and the annular concentrator 1060 are connected to each other. An annular channel 1061 is provided inside the annular concentrator 1060. A filter recovery pipe 106 is connected to the bottom of the annular concentrator 1060, and 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 annular concentrator 1060 through the connecting pipe 12, and then enters the filter collection pipe 102 through the annular channel 1061 inside the annular concentrator 1060 and the filter recovery pipe 106 at the bottom.

[0051] Furthermore, such as Figure 4 As shown, a folded tube 1040 is provided between the mounting disc 30 and the conveying tube 104. The conveying tube 104 is provided along the middle part of the adjacent ceramic membrane mounting assembly 1, and a solenoid valve is provided on the conveying tube 104.

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

[0053] Specifically, the arrangement of folded tube 1040 and folded tube 2 1050 facilitates the lifting space of the upper connecting component 3 and the lower connecting component 2. After the filtration efficiency of the ceramic membrane body 10 decreases, it is necessary to backwash the ceramic membrane body 10. The specific operation steps are as follows: First, close the solenoid valve on the delivery pipe 104, then close the solenoid valve on the branch pipe 1052. Combine the filter recovery pipe 106 and the filter collection pipe 102 to back-pump the filtered catalytic slurry into the annular collection rack 1060. The catalytic slurry enters the area between the outer cylinder 11 and the ceramic membrane body 10 through the connecting pipe 12. Under the action of pressure, the catalytic slurry penetrates into the ceramic membrane body 10, carrying the blockage in the pores and falling to the lower side of the ceramic membrane body 10. Since the solenoid valve on the upper delivery pipe 104 is closed, the back-washed catalytic slurry carrying the blockage enters the return pipe 105 through the lower connecting component 2, and enters the cleaning recovery pipe 103 through the branch pipe 1051. After cleaning is completed, close the solenoid valve on the branch pipe 1051, reopen the solenoid valves on the branch pipe 1052 and the delivery pipe 104, and continue the filtration operation of the catalytic slurry.

[0054] The working principle of this invention embodiment is as follows:

[0055] like Figures 1-12As shown, the ceramic membrane body 10 and the outer cylinder 11 are coaxially mounted, forming an area for collecting the filtered catalytic slurry. The bottom side wall of the outer cylinder 11 is connected to the filter collection pipe 102, and the collected catalytic slurry is sent into the filter collection pipe 102. The feed pipe 100, through the conveying pipe 104, sends the unfiltered catalytic slurry into the ceramic membrane body 10 via the upper connecting assembly 3. Part of the catalytic slurry is filtered and enters the area between the ceramic membrane body 10 and the outer cylinder 11, while the remaining catalytic slurry directly enters the return pipe 101 through the lower connecting assembly 2 and the return pipe 105. A passage is formed between the feed pipe 100 and the return pipe 101, thereby circulating and filtering the catalytic slurry. To facilitate the replacement of damaged ceramic membranes, the upper connecting assembly 3 is first separated from the upper side of the ceramic membrane mounting assembly 1 and rotated using the indexing mechanism 4, thus reserving space for the subsequent raising of the outer cylinder 11. The damaged outer cylinder 11 is snapped into place by the snap-fit ​​assembly, while the remaining outer cylinders 11 are separated from the lower retainer 7. The lifting mechanism 8 uses the climbing motor 83 to drive the lower retainer 7 upward, thereby driving the damaged outer cylinder 11 upward synchronously, so that the outer cylinder 11 is separated from the inner ceramic membrane body 10. Combined with the sinking control assembly 5, the lower connecting assembly 2 is driven to sink, which facilitates the installation of the new ceramic membrane body 10. After the broken ceramic membrane body 10 is cleaned up, the new ceramic membrane body 10 is connected to the lower connecting assembly 2. Combined with the sinking control assembly 5, the lower connecting assembly 2 is driven to rise, while the lifting mechanism 8 is controlled to lower the outer cylinder 11, thereby completing the connection between the outer cylinder 11 and the lower connecting assembly 2. Finally, combined with the indexing mechanism 4, the upper connecting assembly 3 is controlled to engage with the upper end of the outer cylinder 11 to complete the replacement of the broken ceramic membrane body 10. By evenly arranging wrapping blocks 84 on the lower retainer 7 and installing spring columns 85, when it is necessary to operate the outer cylinder 11 where the ceramic membrane body 10 has broken, the electromagnet is energized. Under the action of the spring column 85, the electromagnet is attracted and engaged with the iron block in the matching groove, completing the snap-fit ​​operation between the lower retainer 7 and the corresponding outer cylinder 11, thereby performing the lifting operation under the drive of the lifting mechanism 8. The upper plug 33 is installed in a sealed fit with the outer cylinder 11 and the inner end of the ceramic membrane body 10. The conveying pipe 104 disperses the catalytic slurry into the upper plug 33 after passing through the installation disc 30 and the dispersion pipe 32. After passing through the upper plug 33, the catalytic slurry is sent into the inner side of the ceramic membrane body 10. Under the action of pressure, the catalytic slurry is filtered and permeates to the part between the ceramic membrane body 10 and the outer cylinder 11 to achieve filtration. Most of the catalytic slurry passes through the ceramic membrane body 10 and then connects to the lower connecting component 2 and the return pipe 105 to reach the return pipe 101.When it is necessary to replace the broken ceramic membrane body 10, the upper connecting component 3 on the upper side of the ceramic membrane installation assembly 1 needs to be separated and rotated first. The installation disc 30 is raised by the lifting cylinder 43, which drives the upper plug 33 to detach from the outer cylinder 11 and the ceramic membrane body 10. Then, the drive motor 47 and drive gear 46 drive the rotating seat 41 to rotate, which in turn drives the installation disc 30 to rotate, so that the upper plug 33 is removed from the area directly above the outer cylinder 11, making it easier to lift the damaged outer cylinder 11. The installation support frame 23 is raised and lowered by the sinking control component 5, and the installation disc 20 and lower plug 22 are set. When replacing the broken ceramic membrane body 10, after the outer cylinder 11 is raised by the lifting mechanism 8, the lifting height of the outer cylinder 11 is insufficient to replace and install the new ceramic membrane body 10 due to the position limitation of the upper retainer 6. Therefore, it is necessary to use the sinking control component 5 to drive the lower connecting component 2 to further lower, so as to install the new ceramic membrane body 10. When the lower connecting assembly 2 needs to be lowered, the motor 56 drives the mating gear 55 to mesh with the horizontal rack 52, the snap-fit ​​bracket 54 moves along the snap-fit ​​guide rail 53, and then pulls the horizontal rod 51 to rotate the rotating frame 50, thereby controlling the support frame 23 to slide along the slide rod 24, causing the lower connecting assembly 2 to lower and providing installation space for the ceramic membrane body 10. Specifically, the folded tube one 1040 and folded tube two 1050 facilitate the lifting and lowering space of the upper connecting assembly 3 and the lower connecting assembly 2. After the filtration efficiency of the ceramic membrane body 10 decreases, it is necessary to backwash the ceramic membrane body 10. The specific operation steps are as follows: First, close the solenoid valve on the delivery pipe 104, then close the solenoid valve on the branch pipe 1052. Combine the filter recovery pipe 106 and the filter collection pipe 102 to back-pump the filtered catalytic slurry into the annular collection rack 1060. The catalytic slurry enters the area between the outer cylinder 11 and the ceramic membrane body 10 through the connecting pipe 12. Under the action of pressure, the catalytic slurry penetrates into the ceramic membrane body 10, carrying the blockage in the pores and falling to the lower side of the ceramic membrane body 10. Since the solenoid valve on the upper delivery pipe 104 is closed, the back-washed catalytic slurry carrying the blockage enters the return pipe 105 through the lower connecting component 2, and enters the cleaning recovery pipe 103 through the branch pipe 1051. After cleaning is completed, close the solenoid valve on the branch pipe 1051, reopen the solenoid valves on the branch pipe 1052 and the delivery pipe 104, and continue the filtration operation of the catalytic slurry.

[0056] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0057] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider 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 oil slurry using a ceramic membrane, comprising a feed pipe (100), a return pipe (101), a filtration collection pipe (102), and a cleaning recovery pipe (103) fixedly installed on a base, characterized in that, Multiple sets of ceramic membrane mounting assemblies (1) are installed in a ring between the feed pipe (100) and the return pipe (101). Each ceramic membrane mounting assembly (1) includes a ceramic membrane body (10) and an outer cylinder (11) installed coaxially. The upper and lower ends of the multiple sets of ceramic membrane mounting assemblies (1) are respectively equipped with an upper connecting assembly (3) and a lower connecting assembly (2). The upper connecting assembly (3) is connected to the feed pipe (100) through a conveying pipe (104). The lower connecting assembly (2) is connected to the return pipe (101) through a return pipe (105). The lower connecting assembly (2) is connected to a sinking control assembly (5). The side wall of the outer cylinder (11) is connected to the filter collection pipe (102). An upper retainer (6) and a lower retainer (7) are provided between the outer cylinder (11). The upper retainer (6) is fixedly connected to the base, and the lower retainer (7) is sleeved with the outer cylinder (11). A shifting mechanism (4) is provided at the center of the upper retainer (6). The shifting mechanism (4) is connected to the upper connecting assembly (3). A lifting mechanism (8) is provided on the lower side of the upper retainer (6). The lifting mechanism (8) drives the lower retainer (7) to perform lifting control. The lifting mechanism (8) includes a suspension column (80) disposed on the lower side of the upper retainer (6), the lower retainer (7) is inserted into the suspension column (80), the suspension column (80) is provided with a vertical rack (81), the lower retainer (7) is rotatably mounted with a climbing gear (82), the climbing gear (82) meshes with the vertical rack (81), the climbing gear (82) is connected to a climbing motor (83), and the contact part between the lower retainer (7) and the outer cylinder (11) is provided with a snap-fit ​​assembly; The snap-fit ​​assembly includes wrapping blocks (84) evenly distributed at the contact points between the lower retainer (7) and the outer cylinder (11). A spring post (85) is provided inside the wrapping block (84). An electromagnet is connected to the spring post (85). A matching groove is provided at the part of the outer cylinder (11) corresponding to the electromagnet. An iron block is embedded in the matching groove. When the electromagnet is energized, it is attracted and snapped into the matching groove with the iron block. When the lifting mechanism (8) climbs, it synchronously drives the outer cylinder (11) to rise. The upper connecting assembly (3) includes an installation disc (30) located at the center of multiple outer cylinders (11). The installation disc (30) is provided with a rotating joint (34). The installation disc (30) is connected to the conveying pipe (104) through the rotating joint (34). The installation disc (30) is provided with upper plugs (33) evenly distributed around the outer cylinder (11). A fixing rod (31) is provided between the installation disc (30) and the upper plug (33). The upper plug (33) is sealed to the upper end of the outer cylinder (11) and the ceramic membrane body (10). A dispersing tube (32) is provided between the upper plug (33) and the installation disc (30). The indexing mechanism (4) is located between the upper retainer (6) and the installation disc (30). The lower connecting component (2) includes a second mounting disc (20), and a second fixing rod (26) is evenly arranged on the edge of the second mounting disc (20). The second fixing rod (26) is connected to a lower plug (22). The lower plug (22) cooperates with the lower end 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 installed on the sliding rod (24). A connecting rod (25) is provided at the upper end of the support frame (23) corresponding to the second fixing rod (26). The connecting rod (25) is connected to the second fixing rod (26). A confluence pipe (21) is provided between the lower plug (22) and the second mounting disc (20). The second mounting disc (20) is connected to the return pipe (105). The support frame (23) is connected to the sinking control component (5).

2. The device for filtering catalytic oil slurry using a ceramic membrane according to claim 1, characterized by, The indexing mechanism (4) includes a fixed frame (40) mounted on the upper retainer (6), a rotating seat (41) rotatably mounted on the fixed frame (40), a telescopic column (44) mounted on the rotating seat (41), the rotating seat (41) being connected to the mounting disc (30) via the telescopic column (44), a connecting flange (42) being provided on the side of the mounting disc (30), a lifting cylinder (43) being provided between the connecting flange (42) and the fixed frame (40), a sector gear (45) being provided on the edge of the rotating seat (41), a drive gear (46) being rotatably mounted on the edge of the fixed frame (40), the drive gear (46) meshing with the sector gear (45), and a drive motor (47) being connected to the drive gear (46).

3. The device for filtering catalytic oil slurry using a ceramic membrane according to claim 1, characterized by, The sinking control component (5) includes a rotating frame (50) rotatably mounted at the bottom of the support frame (23). The rotating frames (50) are symmetrically arranged, and a horizontal rod (51) is provided between the rotating frames (50). A horizontal rack (52) is provided on the base. A snap-fit ​​guide rail (53) is provided on both sides of the horizontal rack (52). A snap-fit ​​bracket (54) is slidably installed between the snap-fit ​​guide rails (53). A mating gear (55) is rotatably installed between the snap-fit ​​brackets (54). The mating gear (55) meshes with the horizontal rack (52). An adjusting motor (56) is connected to the mating gear (55). A connecting rod (57) is rotatably installed between the snap-fit ​​bracket (54) and the horizontal rod (51).

4. The apparatus for filtering catalytic slurry using a ceramic membrane according to claim 1, characterized in that, The lower end of the vertical rack (81) is provided with an annular concentrator (1060). The bottom of the outer cylinder (11) is provided with a connecting pipe (12) corresponding to the annular concentrator (1060). The connecting pipe (12) and the annular concentrator (1060) are connected to each other. An annular channel (1061) is provided inside the annular concentrator (1060). The bottom of the annular concentrator (1060) is connected to a filter recovery pipe (106), which is connected to a filter collection pipe (102).

5. The apparatus for filtering catalytic slurry using a ceramic membrane according to claim 1, characterized in that, A folded tube (1040) is provided between the mounting disc (30) and the conveying tube (104). The conveying tube (104) is provided along the middle part of the adjacent ceramic membrane mounting assembly (1). A solenoid valve is provided on the conveying tube (104).

6. The apparatus for filtering catalytic oil slurry using a ceramic membrane according to claim 1, characterized in that, A folded pipe 2 (1050) is provided between the second mounting disc (20) and the return pipe (105). A branch pipe 1 (1051) and a branch pipe 2 (1052) are provided on the return pipe (105). The branch pipe 1 (1051) is connected to the cleaning and recovery pipe (103), and the branch pipe 2 (1052) is connected to the return material pipe (101). Solenoid valves are provided on the branch pipe 1 (1051) and the branch pipe 2 (1052).

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