A pollution-resistant epichlorohydrin wet oxidation catalyst membrane filtration separation equipment

Abstract

The present invention provides a pollution-resistant epichlorohydrin wet oxidation catalyst membrane filtration separation device, which relates to the field of membrane filtration separation technology. The pollution-resistant epichlorohydrin wet oxidation catalyst membrane filtration separation device comprises: a mobile frame, a first filter box, a second filter box, a second drain pipe, a catalyst discharge pipe, a stirring barrel, and three water inlet pipes. The first filter box and the second filter box are both fixedly mounted on the top of the mobile frame, the stirring barrel is fixedly mounted on the top of the first filter box, a stirring device is provided in the stirring barrel, and one end of the third drain pipe is fixedly mounted on the outer wall of the stirring barrel. The pollution-resistant epichlorohydrin wet oxidation catalyst membrane filtration separation device provided by the present invention has the advantages of being easy to use, being able to remove impurities that affect catalyst performance through preliminary filtration, thereby ensuring catalyst performance, and being able to automatically clean the filter screen and membrane regularly, remove impurities attached to the filter screen surface, and automatically discharge them.

Description

Technical Field

[0001] The present invention relates to the technical field of membrane filtration separation, in particular to a pollution-resistant epichlorohydrin wet oxidation catalyst membrane filtration separation device. Background Art

[0002] Pollution-resistant epichlorohydrin wet oxidation catalyst is an important type of catalyst used to treat wastewater and other pollutants generated during the production of epichlorohydrin. It generally interacts with organic pollutants in epichlorohydrin wastewater through the active sites on the catalyst surface, reducing the activation energy of the reaction and making it easier for oxygen to oxidize and decompose organic matter. During the reaction, the catalyst will undergo a redox cycle with oxygen, promoting the activation and transfer of oxygen, thereby accelerating the degradation of organic matter.

[0003] When traditional oxidation catalyst membrane filtration separation equipment performs membrane filtration separation on oxidation catalysts, due to the lack of preliminary filtration, the membrane filtration needs to simultaneously process various impurities of different sizes, making it difficult to achieve ideal separation accuracy. In addition, large particles of impurities and suspended matter will quickly clog the membrane pores, causing a sharp drop in membrane flux, requiring frequent membrane cleaning, thereby increasing maintenance costs and downtime.

[0004] Therefore, it is necessary to provide a pollution-resistant epichlorohydrin wet oxidation catalyst membrane filtration separation equipment to solve the above technical problems. Summary of the Invention

[0005] The technical problem solved by the present invention is to provide an anti-pollution epichlorohydrin wet oxidation catalyst membrane filtration and separation device which is easy to use, can remove impurities that affect catalyst performance through preliminary filtration, thereby ensuring catalyst performance, can automatically clean the filter screen and membrane regularly, remove impurities attached to the filter screen surface and automatically discharge them.

[0006] In order to solve the above technical problems, the present invention provides an anti-pollution epichlorohydrin wet oxidation catalyst membrane filtration and separation equipment, including a mobile frame, a first filter box, a second filter box, a second drain pipe, a catalyst discharge pipe, a stirring barrel and three water inlet pipes, the first filter box and the second filter box are fixedly mounted on the top of the mobile frame, the stirring barrel is fixedly mounted on the top of the first filter box, one end of the three water inlet pipes are fixedly mounted on the stirring barrel, the second drain pipe and the catalyst discharge pipe are fixedly mounted on the bottom of the second filter box, a stirring device is provided in the stirring barrel, one end of the third drain pipe is fixedly mounted on the outer wall of the stirring barrel, the other end of the third drain pipe extends into the first filter box, the first filter box is provided with two fixed frames with built-in filter screens, and the first filter box is provided with a pipe fixing frame A spray pipe is fixedly installed on the pipe fixing frame, and a water tank is fixedly installed on the movable frame. A drainage pipe is provided on the top of the water tank, one end of the drainage pipe extends into the first filter box and is fixedly connected to one end of the spray pipe, a water collecting cylinder is rotatably installed in the second filter box, a plurality of filter cartridges are fixedly installed on the outer wall of the water collecting cylinder, and filter membranes are fixedly installed on the filter cartridges, and two cleaning rubber rollers are rotatably installed in the filter cartridge, a second motor is fixedly installed on the top of the second filter box, and the output shaft of the second motor is fixedly connected to the water collecting cylinder, a second water pump is fixedly installed on the top of the first filter box, and a first drain pipe is fixedly installed on the water outlet end of the second water pump, and the first drain pipe extends into the water collecting cylinder away from one end of the second water pump.

[0007] Preferably, an annular plate is fixedly installed in the second filter box, two fixed connecting plates are fixedly installed on the bottom of the annular plate, two annular support plates are fixedly installed on the inner walls of the two fixed connecting plates, and annular racks are fixedly installed on the two annular support plates. A second connecting shaft is rotatably installed in the filter cylinder, and the second connecting shaft extends to the outside of the filter cylinder away from one end of the water collecting cylinder and is fixedly installed with a gear, which is engaged with the annular rack. An I-type rotating plate is fixedly installed on one end of the second connecting shaft located in the filter cylinder, and the cleaning rubber roller is rotatably installed on the I-type rotating plate.

[0008] Preferably, an observation port is provided on one side of the second filter box, and an observation glass is fixedly installed in the observation port.

[0009] Preferably, the stirring device includes a first motor fixedly mounted on the top of the stirring barrel, a first stirring rod is provided in the stirring barrel, and an output shaft of the first motor extends into the stirring barrel and is fixedly connected to one end of the first stirring rod.

[0010] Preferably, a first suction pipe is fixedly installed on one side of the first filter box, the other end of the first suction pipe is fixedly connected to the water inlet end of the second water pump, the first water pump is fixedly installed on the top of the water storage tank, the other end of the drainage pipe is fixedly connected to the water outlet end of the first water pump, a second suction pipe is provided in the water storage tank, the other end of the second suction pipe extends to the outside of the water storage tank and is fixedly connected to the water inlet end of the first water pump.

[0011] Preferably, the first filter box is provided with two sewage outlets on a side away from the second filter box, and a water collecting chamber is provided at the bottom of the two sewage outlets, the water collecting chamber is connected with the sewage outlet, and circulation holes are provided on both sides of the water collecting chamber, and the circulation holes are connected with the water collecting chamber. Two drainage ducts and water supply pipes are fixedly installed on the side of the first filter box away from the second filter box, the drainage duct and the water supply pipe are both connected with the circulation holes, the other end of the drainage duct extends into the water storage tank, and a third water pump is fixedly installed on the top of the water storage tank, and the other ends of the two water supply pipes are fixedly installed on the water outlet end of the third water pump. A stop is provided in the water chamber, and a slide is fixedly installed on one side of the stop close to the filter screen, and a sliding plate is slidably installed in the slide. One end of the fixed frame close to the stop is hinged on the sliding plate, and the other end of the fixed frame is hinged on the first filter box. The filter screen is slidably installed in the fixed frame, and four guide bolts are provided at the bottom of the fixed frame. The top of the guide bolt passes through the fixed frame and is fixedly connected to the filter screen. A pressure sensor is fixedly installed on the fixed frame, and two guide grooves are fixedly installed on the inner walls on both sides of the first filter box. A driving wheel is provided in the guide groove, and the driving wheel is rotatably installed on both sides of the pipe fixing frame.

[0012] Preferably, a third suction pipe is provided in the water tank, one end of the third suction pipe extends outside the water tank and is fixedly connected to the water inlet end of the third water pump, electronic valves are fixedly installed on the outer walls of the two drainage pipes, and check valves are fixedly installed on the outer sides of the two water supply pipes.

[0013] Preferably, a second spring is sleeved on the outer side of the guide bolt, and two ends of the second spring are fixedly connected to the filter screen and the fixing frame respectively.

[0014] Preferably, a sewage collection box is fixedly installed on the movable frame, a drainage pipe is fixedly installed on the bottom of the first filter box, the bottom end of the drainage pipe is fixedly connected to the sewage collection box, an isolation net is fixedly installed in the sewage collection box, a delivery pipe is fixedly installed on the top of the isolation net, the top end of the delivery pipe extends to the outside of the sewage collection box, a third motor is fixedly installed on the top of the sewage collection box, one end of a connecting rod is fixedly installed on the output shaft of the third motor, the bottom end of the connecting rod extends into the sewage collection box and passes through the isolation net and is fixedly installed with a stirring shaft, a water collection cylinder is fixedly installed on the top of the sewage collection box, a piston head is sealingly and slidingly installed in the water collection cylinder, and the water collection cylinder A lifting rod is provided at the top, and the bottom end of the lifting rod extends into the water collecting tube and is fixedly connected to the piston head. A first connecting shaft is rotatably installed on the top of the sewage collecting tank, and a convex plate is fixedly installed on the end of the first connecting shaft away from the third motor, and a first bevel gear is fixedly installed on the other end of the first connecting shaft. A second bevel gear is fixedly installed on the outer wall of the connecting rod, and the second bevel gear is meshed with the first bevel gear. A second one-way tube is fixedly installed on the bottom end of the water collecting tube, and the bottom end of the second one-way tube extends into the sewage collecting tank. A first one-way tube is fixedly installed on the outer wall of the water collecting tube, and the first one-way tube extends into the water storage tank at one end away from the third motor.

[0015] Preferably, a first spring is sleeved on the outer side of the lifting rod, two ends of the first spring are fixedly connected to the lifting rod and the water collection tube respectively, and one-way valves are fixedly installed on the outer sides of the second one-way pipe and the first one-way pipe.

[0016] Compared with related technologies, the anti-pollution epichlorohydrin wet oxidation catalyst membrane filtration separation equipment provided by the present invention has the following beneficial effects:

[0017] The present invention provides a pollution-resistant epichlorohydrin wet oxidation catalyst membrane filtration separation device, which cooperates with a water inlet pipe, a first stirring rod, a first motor, a stirring barrel and a third drain pipe. When the first stirring rod rotates, the liquid to be separated and the catalyst are fully contacted and mixed, thereby accelerating the oxidation reaction process, making the pollution-resistant epichlorohydrin wet oxidation catalyst uniformly dispersed in the liquid, increasing the contact area between the catalyst and the reactant, giving full play to the activity of the catalyst, improving the catalytic efficiency, preventing the catalyst particles from agglomerating to form large particles, and avoiding the reduction and sedimentation of the catalyst active sites due to agglomeration; through a water storage tank, a second extraction pipe, a first water pump, a drainage pipe, and a pipeline fixing The frame, fixed connecting plate, spray pipe, annular support plate, annular plate, filter cartridge, cleaning rubber roller, filter membrane, I-type rotating plate, gear, second connecting shaft and annular rack are coordinated. The spray pipe and cleaning rubber roller can timely remove pollutants on the surface of the filter screen and membrane, prevent the membrane pores from being blocked, keep the flux stable during the filtration process, avoid the filtration speed drop caused by blockage, avoid the chemical corrosion or physical wear of the membrane caused by long-term adhesion of pollutants, reduce the risk of damage such as membrane rupture and perforation, and prevent the filter screen from being deformed and damaged due to the accumulation of impurities, maintain the mechanical strength and structural integrity of the filter screen, ensure that it can continue to play the role of preliminary filtration, and provide good pre-protection for membrane filtration;

[0018] Through the cooperation of the third suction pipe, the third water pump, the drainage pipe, the water supply pipe, the driving wheel, the stopper, the filter screen, the pipe fixing frame, the sliding plate, the pressure sensor, the fixing frame, the second spring and the guide bolt, when impurities adhere to and accumulate excessively on the filter screen, the filter screen descends and contacts the pressure sensor, thereby achieving timely discharge of impurities and preventing the filter screen pores from being heavily clogged, so that the filter screen can continuously maintain good filtering performance, allowing the fluid to pass smoothly, avoiding the impact of impurity accumulation on the filtering accuracy, ensuring the effective separation of the catalyst and other substances, and preventing the filter screen from being damaged by squeezing, wear and other damage caused by excessive accumulation of impurities. In addition, there is no need for manual cleaning of impurities on the filter screen, which reduces the workload and cost of manual maintenance, and also reduces the errors and safety risks that may be caused by manual operation.

[0019] The cleaned water is recycled and reused through the cooperation of the drainage pipe, sewage collection tank, the third motor, the second bevel gear, the connecting rod, the isolation net, the second one-way pipe, the first one-way pipe, the first spring, the lifting rod, the water collecting cylinder, the piston head, the convex plate, the first connecting shaft and the first bevel gear. It can replace part of the fresh water for cleaning of the device and other links, reduce dependence on fresh water resources, realize the reuse of water resources, make water circulate in the device, and improve the water utilization rate in the whole production process. When the third motor is started, it can provide continuous power for the circulation of water, ensure that the water continues to flow in the circulation system, so that the treated water can be transported to the water storage tank in time, ensuring the continuity of recycling, and the flow and stirring of the water flow during the extraction process can make the substances in the water more evenly mixed, which helps to make the treatment agent fully contact and react with the water, improve the water treatment effect, and make the water quality more stable and uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of a first embodiment of a pollution-resistant epichlorohydrin wet oxidation catalyst membrane filtration and separation device provided by the present invention;

[0021] Figure 2 for Figure 1 A schematic diagram of another perspective of the structure shown;

[0022] Figure 3 for Figure 1 The schematic cross-sectional view of the mixing barrel shown;

[0023] Figure 4 for Figure 1 The water storage tank and the first filter box are shown in cross-sectional view;

[0024] Figure 5 for Figure 1 A schematic cross-sectional view of the second filter box, water collecting cylinder and filter cylinder shown;

[0025] Figure 6 for Figure 5 The complete schematic diagram of the water collecting cylinder, filter cylinder and annular rack is shown;

[0026] Figure 7 for Figure 6 Schematic diagram of the coordination of the annular plate, fixed connecting plate and annular rack shown;

[0027] Figure 8 for Figure 5 An enlarged schematic diagram of section A is shown;

[0028] Figure 9 A schematic diagram of a second embodiment of the pollution-resistant epichlorohydrin wet oxidation catalyst membrane filtration separation equipment provided by the present invention;

[0029] Figure 10 for Figure 9 A schematic diagram of another perspective of the structure shown;

[0030] Figure 11 for Figure 9 The schematic cross-sectional view of the structure shown;

[0031] Figure 12 for Figure 11 Schematic diagram of the coordination of the water collection chamber, flow holes, drainage ducts and water supply pipes shown;

[0032] Figure 13 for Figure 11 A schematic side cross-sectional view of the structure shown;

[0033] Figure 14 for Figure 13 Schematic diagram of part of the structure shown;

[0034] Figure 15 for Figure 11 The schematic cross-sectional view of the dowel seat and filter shown;

[0035] Figure 16 for Figure 11 An enlarged schematic diagram of portion B is shown;

[0036] Figure 17 for Figure 11 Schematic diagram of part of the structure shown;

[0037] Figure 18 for Figure 15 An enlarged schematic diagram of portion D is shown;

[0038] Figure 19 for Figure 15 An enlarged schematic diagram of section C is shown;

[0039] Figure 20 A schematic diagram of a third embodiment of the anti-pollution epichlorohydrin wet oxidation catalyst membrane filtration separation equipment provided by the present invention;

[0040] Figure 21 for Figure 20 Schematic diagram of part of the structure shown;

[0041] Figure 22 for Figure 21 The schematic cross-sectional view of the structure shown;

[0042] Figure 23 for Figure 21 Schematic diagram of part of the structure shown;

[0043] Figure 24 for Figure 23 The schematic cross-sectional view of the structure shown;

[0044] Figure 25 for Figure 21 The diagram shows the cooperation between the second bevel gear, the first bevel gear and the convex plate.

[0045] : 1. Mobile frame; 2. I-type rotating plate; 3. Water storage tank; 4. First water pump; 5. First filter box; 6. Drainage pipe; 7. Mixing barrel; 8. Water inlet pipe; 9. First motor; 10. First drain pipe; 11. Second motor; 12. First connecting shaft; 13. First bevel gear; 14. Second filter box; 15. Cleaning rubber roller; 16. Second water pump; 17. First extraction pipe; 18. Catalyst discharge pipe; 19. Second drainage pipe; 20. Convex plate; 21. First stirring rod; 22. Third drainage pipe; 23. Second extraction pipe; 24. Spray pipe; 25. Pipe fixing frame; 26. Filter screen; 27. Fixing frame; 28. Water collecting cylinder; 29. ​​Filter membrane; 3 0. Gear; 31. Filter cartridge; 32. Annular plate; 33. Water collecting cylinder; 34. Annular rack; 35. Second connecting shaft; 36. Fixed connecting plate; 37. Observation glass; 38. Annular support plate; 39. Isolation net; 40. Drain pipe; 41. Connecting rod; 42. Water supply pipe; 43. Third water pump; 44. Third suction pipe; 45. First one-way pipe; 46. Second one-way pipe; 47. Driving wheel; 48. Lifting rod; 49. Butt; 50. Piston head; 51. First spring; 52. Sliding plate; 53. Pressure sensor; 54. Second spring; 55. Guide bolt; 56. Drain pipe; 57. Sewage collection tank; 58. Second bevel gear; 59. Third motor. DETAILED DESCRIPTION

[0046] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0047] First embodiment:

[0048] Please refer to Figures 1-8In the first embodiment of the present invention, the anti-pollution epichlorohydrin wet oxidation catalyst membrane filtration separation equipment includes: a mobile frame 1, a first filter box 5, a second filter box 14, a second drain pipe 19, a catalyst discharge pipe 18, a stirring barrel 7 and three water inlet pipes 8, the first filter box 5 and the second filter box 14 are fixedly mounted on the top of the mobile frame 1, the stirring barrel 7 is fixedly mounted on the top of the first filter box 5, one end of the three water inlet pipes 8 are fixedly mounted on the stirring barrel 7, the second drain pipe 19 and the catalyst discharge pipe 18 are fixedly mounted on the bottom of the second filter box 14, a stirring device is provided in the stirring barrel 7, and a stirring device is fixedly mounted on the outer wall of the stirring barrel 7. One end of the third drain pipe 22 and the other end of the third drain pipe 22 extend into the first filter box 5. A valve is installed on the third drain pipe 22. After the liquid in the mixing barrel 7 is stirred and mixed, the valve is opened and the liquid is transported to the first filter box 5 through the third drain pipe 22. The first filter box 5 is provided with two fixed frames 27 with built-in filter screens 26. In this embodiment, the filter screen 26 is in the fixed frame 27. Since the filter screen 26 has a certain inclination angle, when the spray pipe 24 sprays water, the impurities on the filter screen 26 can be washed to the place where the inclination of the filter screen 26 is lower, which is convenient for centralized treatment. In order to prevent the filter screen 26 from filtering out the oxidation catalyst, the filter screen 26 can choose a filter with a pore size larger than the particle size of the oxidation catalyst but smaller than the particle size of the impurities. If the impurities are solid particles with larger particle size, and the oxidant and catalyst are small molecules or ions, a coarse filter with a larger pore size can be selected. In this way, the impurities are filtered without filtering the oxidation catalyst, and the two filters 26 can filter the impurities in the oxidation catalyst at the same time, without the need to filter the oxidation catalyst again later. A pipe fixing frame 25 is provided in the first filter box 5, and a spray pipe 24 is fixedly installed on the pipe fixing frame 25. A water tank 3 is fixedly installed on the mobile frame 1. A drainage pipe 6 is provided on the top of the water tank 3. One end of the drainage pipe 6 extends to the first filter Box 5 and fixedly connected to one end of the spray pipe 24, a water collecting cylinder 28 is rotatably installed in the second filter box 14, and a plurality of filter cylinders 31 are fixedly installed on the outer wall of the water collecting cylinder 28, and a filter membrane 29 is fixedly installed on the filter cylinder 31. Two cleaning rubber rollers 15 are rotatably installed in the filter cylinder 31, and a second motor 11 is fixedly installed on the top of the second filter box 14. The output shaft of the second motor 11 is fixedly connected to the water collecting cylinder 28, and a second water pump 16 is fixedly installed on the top of the first filter box 5. The water outlet end of the second water pump 16 is fixedly installed with a first drain pipe 10, and the first drain pipe 10 extends to the water collecting cylinder 28 at one end away from the second water pump 16.

[0049] An annular plate 32 is fixedly installed in the second filter box 14, and two fixed connecting plates 36 are fixedly installed on the bottom of the annular plate 32. Two annular support plates 38 are fixedly installed on the inner walls of the two fixed connecting plates 36. An annular rack 34 is fixedly installed on the two annular support plates 38. A second connecting shaft 35 is rotatably installed in the filter cartridge 31. The second connecting shaft 35 extends to the outside of the filter cartridge 31 at one end away from the water collecting cylinder 28 and is fixedly installed with a gear 30. The gear 30 is meshed with the annular rack 34. An I-type rotating plate 2 is fixedly installed on one end of the second connecting shaft 35 located in the filter cartridge 31, and the cleaning rubber roller 15 is rotatably installed on the I-type rotating plate 2.

[0050] An observation port is provided on one side of the second filter box 14 , and an observation glass 37 is fixedly installed in the observation port.

[0051] The stirring device includes a first motor 9 fixedly mounted on the top of the stirring barrel 7 , a first stirring rod 21 is provided in the stirring barrel 7 , and an output shaft of the first motor 9 extends into the stirring barrel 7 and is fixedly connected to one end of the first stirring rod 21 .

[0052] A first suction pipe 17 is fixedly installed on one side of the first filter box 5, and the other end of the first suction pipe 17 is fixedly connected to the water inlet end of the second water pump 16. The first water pump 4 is fixedly installed on the top of the water tank 3, and the other end of the drainage pipe 6 is fixedly connected to the water outlet end of the first water pump 4. A second suction pipe 23 is provided in the water tank 3, and the other end of the second suction pipe 23 extends outside the water tank 3 and is fixedly connected to the water inlet end of the first water pump 4.

[0053] The working principle of the anti-pollution epichlorohydrin wet oxidation catalyst membrane filtration separation equipment provided by the present invention is as follows:

[0054] First, the oxidation catalyst and other liquids are transported into the mixing barrel 7 through the water inlet pipe 8, and the first motor 9 is started. The output shaft of the first motor 9 drives the first stirring rod 21 to rotate, thereby uniformly dispersing the anti-pollution epichlorohydrin wet oxidation catalyst in the liquid. Then, the valve on the third drain pipe 22 is opened, and the liquid in the mixing barrel 7 is discharged into the first filter box 5 through the third drain pipe 22.

[0055] Then, when the liquid passes through the two filters 26, the pollutants and impurities in the liquid are blocked by the two filters 26. Since the pore size of the filter 26 is larger than the particle size of the oxidation catalyst and smaller than the particle size of the impurities, and the oxidant and catalyst are in the form of small molecules or ions, the impurities can be filtered out without filtering the oxidation catalyst, and the remaining liquid is collected inside the first filter box 5. Then the second water pump 16 is started, and the second water pump 16 extracts the filtered liquid in the first filter box 5 through the first suction pipe 17, and discharges it into the water collection cylinder 28 through the first drain pipe 10. When the oxidation catalyst enters the water collection cylinder 28, the two filters 26 have already filtered out the impurities. The liquid is discharged through the filter membrane 29, while the oxidation catalyst is blocked by the filter membrane 29 and concentrated in the water collecting cylinder 28. Then the second motor 11 is started, and the output shaft of the second motor 11 drives the water collecting cylinder 28 to rotate. At this time, the water collecting cylinder 28 drives the second connecting shaft 35 to rotate, and drives the I-type rotating plate 2 to rotate through the gear 30 and the annular rack 34. The I-type rotating plate 2 drives the cleaning rubber roller 15 to rotate, so that the cleaning rubber roller 15 cleans the filter membrane 29. After the filtration is completed, the valve on the second drain pipe 19 is opened, and the liquid is discharged from the second drain pipe 19. Then the valve at the bottom of the water collecting cylinder 28 is opened, and the oxidation catalyst is discharged from the catalyst discharge pipe 18.

[0056] Compared with related technologies, the anti-pollution epichlorohydrin wet oxidation catalyst membrane filtration separation equipment provided by the present invention has the following beneficial effects:

[0057] The present invention provides a pollution-resistant epichlorohydrin wet oxidation catalyst membrane filtration separation device, which cooperates with a water inlet pipe 8, a first stirring rod 21, a first motor 9, a stirring barrel 7 and a third drain pipe 22. When the first stirring rod 21 rotates, the liquid to be separated and the catalyst are fully contacted and mixed, thereby accelerating the oxidation reaction process, making the pollution-resistant epichlorohydrin wet oxidation catalyst uniformly dispersed in the liquid, increasing the contact area between the catalyst and the reactant, giving full play to the activity of the catalyst, improving the catalytic efficiency, preventing the catalyst particles from agglomerating to form large particles, and avoiding the reduction and sedimentation of the catalyst active sites due to agglomeration; through the water storage tank 3, the second extraction pipe 23, the first water pump 4, the drainage pipe 6, the pipeline The fixing frame 25, the spray pipe 24, the annular plate 32, the filter cartridge 31, the cleaning rubber roller 15, the filter membrane 29, the I-type rotating plate 2, the gear 30, the second connecting shaft 35 and the annular rack 34 cooperate with each other. The spray pipe 24 and the cleaning rubber roller 15 can promptly remove pollutants on the surface of the filter screen and the membrane, prevent the membrane pores from being blocked, keep the flux stable during the filtration process, avoid the filtration speed from decreasing due to blockage, avoid chemical corrosion or physical wear of the membrane caused by long-term adhesion of pollutants, reduce the risk of damage such as membrane rupture and perforation, and prevent the filter screen from being deformed or damaged due to the accumulation of impurities, maintain the mechanical strength and structural integrity of the filter screen, ensure that it can continue to play the role of preliminary filtration, and provide good pre-protection for membrane filtration.

[0058] Second embodiment:

[0059] Based on the pollution-resistant epichlorohydrin wet oxidation catalyst membrane filtration and separation device provided in the first embodiment of this application, the second embodiment of this application provides another pollution-resistant epichlorohydrin wet oxidation catalyst membrane filtration and separation device. The second embodiment is merely a preferred embodiment of the first embodiment, and implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0060] The second embodiment of the present invention will be further described below with reference to the accompanying drawings and implementation plans.

[0061] Please refer to Figures 9-19 The anti-pollution type epichlorohydrin wet oxidation catalyst membrane filtration separation equipment also includes two sewage outlets, the sewage outlet is arranged on the side of the first filter box 5 away from the second filter box 14, and the bottom of the two sewage outlets is provided with a water collection chamber, the water collection chamber is connected to the sewage outlet, and flow holes are provided on both sides of the water collection chamber, and the flow holes are connected to the water collection chamber. A dust collection box is also installed on the side of the first filter box 5 away from the second filter box 14, and a dust discharge pipe is also installed at the bottom of the dust collection box. When there are too many impurities on the filter screen 26 and the filter screen 26 is driven to descend, the filter screen 26 contacts the pressure sensor 53. At this time, the electronic valve on the drainage pipe 40 is opened, and the water in the water collection chamber is discharged into the water storage tank 3 through the drainage pipe 40. The seat 49 descends and opens the sewage outlet, and then the impurities are flushed into the dust collection box and discharged from the dust discharge pipe. Two drainage pipes 40 and a water supply pipe 42 are fixedly installed on the side of the first filter box 5 away from the second filter box 14. The other end of the conduit 40 extends into the water tank 3. A third water pump 43 is fixedly installed on the top of the water tank 3. The other ends of the two water supply pipes 42 are fixedly installed on the water outlet end of the third water pump 43. A retaining seat 49 is provided in the water collection chamber. A slide groove is fixedly installed on the side of the retaining seat 49 close to the filter screen 26. A sliding plate 52 is slidably installed in the slide groove. One end of the fixed frame 27 close to the retaining seat 49 is hinged on the sliding plate 52, and the other end of the fixed frame 27 is hinged on the first filter box 5. In this embodiment, the filter screen 26 is slidably installed in the fixed frame 27. Four guide bolts 55 are provided at the bottom of the fixed frame 27. The top of the guide bolt 55 passes through the fixed frame 27 and is fixedly connected to the filter screen 26. A pressure sensor 53 is fixedly installed on the fixed frame 27. Two guide grooves are fixedly installed on the inner walls on both sides of the first filter box 5. A driving wheel 47 is provided in the guide groove. The driving wheel 47 is rotatably installed on both sides of the pipe fixing frame 25.

[0062] A third suction pipe 44 is provided in the water tank 3, one end of the third suction pipe 44 extends to the outside of the water tank 3 and is fixedly connected to the water inlet end of the third water pump 43. Electronic valves are fixedly installed on the outer walls of the two drainage pipes 40. When the filter 26 contacts the pressure sensor 53, the electronic valve will open to facilitate the discharge of water in the water collection chamber. Check valves are fixedly installed on the outside of the two water supply pipes 42. The check valves can prevent water from flowing back when water is added to the water collection chamber.

[0063] A second spring 54 is sleeved on the outer side of the guide bolt 55 , and two ends of the second spring 54 are fixedly connected to the filter screen 26 and the fixing frame 27 respectively.

[0064] First, before filtering, open the valve on the water supply pipe 42, and then open the third water pump 43. The third water pump 43 extracts the water in the water storage tank 3 through the third suction pipe 44, and transports the water to the water collection chamber through the water supply pipe 42. When the water level in the water collection chamber continues to rise, it drives the seat 49 to rise, and the top of the seat 49 contacts the top inner wall of the sewage outlet. Then, during filtration, impurities are concentrated on the filter screen 26. When there are too many impurities on the filter screen 26 and the filter screen 26 is driven to drop, it contacts the pressure sensor 53. At this time, the electronic valve on the drainage pipe 40 is opened, and the water in the water collection chamber is discharged into the water storage tank 3 again through the drainage pipe 40. The seat 49 drops and opens the sewage outlet. Then the driving wheel 47 is started, driving the pipe fixing frame 25 to move toward the dust collection box. The first water pump 4 is driven by the second suction pipe 23 extracts water from the water storage tank 3 and transports it to the spray pipe 24 through the drainage pipe 6, flushes out the impurities on the filter 26, and the flushed impurities enter the dust collection box and are discharged from the dust exhaust pipe at the bottom. The present invention is arranged with the above-mentioned components. When impurities on the filter 26 adhere and accumulate too much, the filter 26 drops and contacts the pressure sensor 53, which can achieve timely discharge of impurities and prevent the filter pores from being blocked in large quantities, so that the filter can continue to maintain good filtering performance, allowing the fluid to pass smoothly, avoiding the impact of impurity accumulation on the filtering accuracy, ensuring the effective separation of the catalyst from other substances, and preventing excessive accumulation of impurities from causing damage to the filter such as extrusion and wear. There is no need for manual frequent cleaning of filter impurities, which reduces the workload and cost of manual maintenance, and also reduces the mistakes and safety risks that may be caused by manual operation.

[0065] Third embodiment:

[0066] Based on the pollution-resistant epichlorohydrin wet oxidation catalyst membrane filtration and separation device provided in the second embodiment of this application, the third embodiment of this application provides another pollution-resistant epichlorohydrin wet oxidation catalyst membrane filtration and separation device. The third embodiment is merely a preferred embodiment of the second embodiment, and implementation of the third embodiment will not affect the independent implementation of the second embodiment.

[0067] The third embodiment of the present invention will be further described below with reference to the accompanying drawings and implementation plans.

[0068] Please refer to Figure 20-25 , the pollution-resistant epichlorohydrin wet oxidation catalyst membrane filtration separation equipment also includes a sewage collection box 57, the sewage collection box 57 is fixedly mounted on the mobile frame 1, the bottom of the first filter box 5 is fixedly mounted with a drain pipe 56, the drain pipe 56 is installed with a valve, which is opened after the filtration is completed and the liquid in the first filter box 5 is extracted. This can prevent part of the oxidation catalyst from entering the sewage collection box 57, the bottom end of the drain pipe 56 is fixedly connected to the sewage collection box 57, an isolation net 39 is fixedly mounted in the sewage collection box 57, a delivery pipe is fixedly mounted on the top of the isolation net 39, the top of the delivery pipe extends to the outside of the sewage collection box 57, a third motor 59 is fixedly mounted on the top of the sewage collection box 57, one end of the connecting rod 41 is fixedly mounted on the output shaft of the third motor 59, the bottom end of the connecting rod 41 extends into the sewage collection box 57 and passes through the isolation net 39 and is fixedly mounted with a stirring shaft, the connecting rod 41 drives the stirring shaft at the bottom to stir the water in the sewage collection box 57, so that Water and alum or activated carbon are fully mixed and reacted to quickly precipitate impurities. A water collection cylinder 33 is fixedly installed on the top of the sewage collection tank 57. A piston head 50 is sealed and slidably installed in the water collection cylinder 33. A lifting rod 48 is provided on the top of the water collection cylinder 33. The bottom end of the lifting rod 48 extends into the water collection cylinder 33 and is fixedly connected to the piston head 50. A first connecting shaft 12 is rotatably installed on the top of the sewage collection tank 57. A convex plate 2 is fixedly installed on the end of the first connecting shaft 12 away from the third motor 59. 0, the other end of the first connecting shaft 12 is fixedly mounted with a first bevel gear 13, the outer wall of the connecting rod 41 is fixedly mounted with a second bevel gear 58, the second bevel gear 58 is meshed with the first bevel gear 13, the bottom end of the water collection cylinder 33 is fixedly mounted with a second one-way tube 46, the bottom end of the second one-way tube 46 extends into the sewage collection tank 57, the outer wall of the water collection cylinder 33 is fixedly mounted with a first one-way tube 45, and the end of the first one-way tube 45 away from the third motor 59 extends into the water storage tank 3.

[0069] A first spring 51 is sleeved on the outer side of the lifting rod 48 , and two ends of the first spring 51 are fixedly connected to the lifting rod 48 and the water collection tube 33 respectively.

[0070] One-way valves are fixedly installed on the outside of the second one-way pipe 46 and the first one-way pipe 45, and the one-way valves can prevent backflow during pumping and draining.

[0071] After the filtration is completed and the filter screen 26 is rinsed, the valve on the drain pipe 56 is opened, and the water in the first filter box 5 is discharged into the sewage collection tank 57 through the drain pipe 56, and then alum or activated carbon and other substances are added from the delivery pipe, and the third motor 59 is started. The output shaft of the third motor 59 drives the connecting rod 41 to rotate, and the connecting rod 41 drives the stirring shaft at the bottom to stir the water in the sewage collection tank 57, so that the water and alum or activated carbon are fully mixed and reacted, and finally impurities are precipitated. As the water level continues to rise, the filtered water continues to rise through the isolation net 39. When the connecting rod 41 rotates, the second bevel gear 58 and the first bevel gear 13 are engaged, which drives the convex plate 20 to rotate. The convex plate 20 presses down the lifting rod 48 when rotating, and the lifting rod 48 is lifted again by the first spring 51. When the piston head 50 rises, the water collection cylinder 33 transfers the water in the sewage collection tank 57 to the second one-way pipe 46 and the one-way valve. The water is extracted into the water collecting cylinder 33, and then when the piston head 50 descends, the water in the water collecting cylinder 33 is transported to the water storage tank 3 through the first one-way pipe 45, which can continuously transport the filtered water in the sewage collection tank 57 to the water storage tank 3. The present invention recycles the cleaned water through the arrangement of the above-mentioned components, and can replace part of the fresh water for cleaning of the device, etc., reducing dependence on fresh water resources, realizing the reuse of water resources, and making water circulate in the device, thereby improving the water utilization rate in the entire production process. When the third motor 59 is started, it can provide continuous power for the circulation of water, ensuring that the water continues to flow in the circulation system, so that the treated water can be transported to the water storage tank 3 in time, ensuring the continuity of recycling, and the flow and stirring of the water flow during the extraction process can make the substances in the water more evenly mixed, which helps to make the treatment agent fully contact and react with the water, improve the water treatment effect, and make the water quality more stable and uniform.

[0072] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pollution-resistant epichlorohydrin wet oxidation catalyst membrane filtration separation device, comprising: A movable frame (1), a first filter box (5), a second filter box (14), a second drain pipe (19), a catalyst discharge pipe (18), a stirring barrel (7) and three water inlet pipes (8), wherein the first filter box (5) and the second filter box (14) are fixedly mounted on the top of the movable frame (1), the stirring barrel (7) is fixedly mounted on the top of the first filter box (5), one end of the three water inlet pipes (8) are fixedly mounted on the stirring barrel (7), the second drain pipe (19) and the catalyst discharge pipe (18) are fixedly mounted on the bottom of the second filter box (14), characterized in that a stirring device is provided in the stirring barrel (7), one end of a third drain pipe (22) is fixedly mounted on the outer wall of the stirring barrel (7), the other end of the third drain pipe (22) extends into the first filter box (5), and the first filter box (5) is provided with a fixing frame (27) with two built-in filter screens (26) The first filter box (5) is provided with a pipe fixing frame (25), a spray pipe (24) is fixedly mounted on the pipe fixing frame (25), a water storage tank (3) is fixedly mounted on the mobile frame (1), a drainage pipe (6) is provided on the top of the water storage tank (3), one end of the drainage pipe (6) extends into the first filter box (5) and is fixedly connected to one end of the spray pipe (24), a water collecting cylinder (28) is rotatably mounted in the second filter box (14), a plurality of filter cylinders (31) are fixedly mounted on the outer wall of the water collecting cylinder (28), and the filter cylinders (31) A filter membrane (29) is fixedly mounted on each of the filter boxes (5); two cleaning rubber rollers (15) are rotatably mounted in the filter cartridge (31); a second motor (11) is fixedly mounted on the top of the second filter box (14); an output shaft of the second motor (11) is fixedly connected to the water collecting cartridge (28); a second water pump (16) is fixedly mounted on the top of the first filter box (5); a first drain pipe (10) is fixedly mounted on the water outlet end of the second water pump (16); an end of the first drain pipe (10) away from the second water pump (16) extends into the water collecting cartridge (28); An annular plate (32) is fixedly installed in the second filter box (14), and two fixed connecting plates (36) are fixedly installed on the bottom of the annular plate (32), and two annular support plates (38) are fixedly installed on the inner walls of the two fixed connecting plates (36), and an annular rack (34) is fixedly installed on the two annular support plates (38). A second connecting shaft (35) is rotatably installed in the filter cylinder (31), and the second connecting shaft (35) extends from one end of the water collecting cylinder (28) to the outside of the filter cylinder (31) and is fixedly installed with a gear (30), and the gear (30) is meshed with the annular rack (34). An I-type rotating plate (2) is fixedly installed on one end of the second connecting shaft (35) located in the filter cylinder (31), and the cleaning rubber roller (15) is rotatably installed on the I-type rotating plate (2).

2. The anti-pollution epichlorohydrin wet oxidation catalyst membrane filtration separation equipment according to claim 1, characterized in that: An observation port is provided on one side of the second filter box (14), and an observation glass (37) is fixedly installed in the observation port.

3. The anti-pollution epichlorohydrin wet oxidation catalyst membrane filtration separation equipment according to claim 1, characterized in that: The stirring device comprises a first motor (9) fixedly mounted on the top of the stirring barrel (7); a first stirring rod (21) is provided in the stirring barrel (7); an output shaft of the first motor (9) extends into the stirring barrel (7) and is fixedly connected to one end of the first stirring rod (21).

4. The anti-pollution epichlorohydrin wet oxidation catalyst membrane filtration separation equipment according to claim 1, characterized in that: A first extraction pipe (17) is fixedly mounted on one side of the first filter box (5), the other end of the first extraction pipe (17) is fixedly connected to the water inlet of the second water pump (16), a first water pump (4) is fixedly mounted on the top of the water storage tank (3), the other end of the drainage pipe (6) is fixedly connected to the water outlet of the first water pump (4), a second extraction pipe (23) is provided in the water storage tank (3), the other end of the second extraction pipe (23) extends outside the water storage tank (3) and is fixedly connected to the water inlet of the first water pump (4).

5. The anti-pollution epichlorohydrin wet oxidation catalyst membrane filtration separation equipment according to claim 1, characterized in that: The first filter box (5) is provided with two sewage outlets on a side away from the second filter box (14), and a water collecting chamber is provided at the bottom of each of the two sewage outlets, and the water collecting chamber is connected to the sewage outlet. Both sides of the water collecting chamber are provided with flow holes, and the flow holes are connected to the water collecting chamber. Two drainage pipes (40) and water supply pipes (42) are fixedly installed on the side of the first filter box (5) away from the second filter box (14), and the drainage pipes (40) and the water supply pipes (42) are both connected to the flow holes. The other end of the drainage pipe (40) extends into the water storage tank (3), and a third water pump (43) is fixedly installed on the top of the water storage tank (3). The other ends of the two water supply pipes (42) are fixedly installed on the water outlet end of the third water pump (43). A stopper (49) is provided in the water collecting chamber, and the stopper (49) 9) A slide is fixedly installed on one side close to the filter (26), and a sliding plate (52) is slidably installed in the slide. One end of the fixed frame (27) close to the stop (49) is hinged on the sliding plate (52), and the other end of the fixed frame (27) is hinged on the first filter box (5). The filter (26) is slidably installed in the fixed frame (27), and four guide bolts (55) are provided at the bottom of the fixed frame (27). The top of the guide bolt (55) passes through the fixed frame (27) and is fixedly connected to the filter (26). A pressure sensor (53) is fixedly installed on the fixed frame (27). Two guide grooves are fixedly installed on the inner walls of both sides of the first filter box (5). A driving wheel (47) is provided in the guide groove. The driving wheel (47) is rotatably installed on both sides of the pipe fixing frame (25).

6. The anti-pollution epichlorohydrin wet oxidation catalyst membrane filtration separation equipment according to claim 5, characterized in that: A third pumping pipe (44) is provided in the water storage tank (3), one end of the third pumping pipe (44) extends outside the water storage tank (3) and is fixedly connected to the water inlet end of the third water pump (43). Electronic valves are fixedly installed on the outer walls of the two drainage pipes (40), and check valves are fixedly installed on the outer sides of the two water supply pipes (42).

7. The anti-pollution epichlorohydrin wet oxidation catalyst membrane filtration separation equipment according to claim 5, characterized in that: A second spring (54) is sleeved on the outer side of the guide bolt (55), and two ends of the second spring (54) are fixedly connected to the filter screen (26) and the fixing frame (27) respectively.

8. The anti-pollution epichlorohydrin wet oxidation catalyst membrane filtration separation equipment according to claim 1, characterized in that: A sewage collection box (57) is fixedly mounted on the movable frame (1), a drainage pipe (56) is fixedly mounted on the bottom of the first filter box (5), and the bottom end of the drainage pipe (56) is fixedly connected to the sewage collection box (57). An isolation net (39) is fixedly mounted in the sewage collection box (57), a delivery pipe is fixedly mounted on the top of the isolation net (39), and the top end of the delivery pipe extends to the outside of the sewage collection box (57). A third motor (59) is fixedly mounted on the top of the sewage collection box (57), and one end of a connecting rod (41) is fixedly mounted on the output shaft of the third motor (59). The bottom end of the connecting rod (41) extends into the sewage collection box (57) and passes through the isolation net (39) and is fixedly mounted with a stirring shaft. A water collection cylinder (33) is fixedly mounted on the top of the sewage collection box (57), and a piston head (50) is sealingly and slidably mounted in the water collection cylinder (33). The top of the water collection cylinder (33) is provided with a lifting mechanism. A rod (48) is provided, the bottom end of the lifting rod (48) extends into the water collection barrel (33) and is fixedly connected to the piston head (50), a first connecting shaft (12) is rotatably mounted on the top of the sewage collection tank (57), a convex plate (20) is fixedly mounted on one end of the first connecting shaft (12) away from the third motor (59), a first bevel gear (13) is fixedly mounted on the other end of the first connecting shaft (12), a second bevel gear (58) is fixedly mounted on the outer wall of the connecting rod (41), the second bevel gear (58) is meshed with the first bevel gear (13), a second one-way pipe (46) is fixedly mounted on the bottom end of the water collection barrel (33), the bottom end of the second one-way pipe (46) extends into the sewage collection tank (57), a first one-way pipe (45) is fixedly mounted on the outer wall of the water collection barrel (33), and an end of the first one-way pipe (45) away from the third motor (59) extends into the water storage tank (3).

9. The anti-pollution epichlorohydrin wet oxidation catalyst membrane filtration separation equipment according to claim 8, characterized in that: A first spring (51) is sleeved on the outer side of the lifting rod (48), and both ends of the first spring (51) are fixedly connected to the lifting rod (48) and the water collecting tube (33), respectively. One-way valves are fixedly installed on the outer sides of the second one-way tube (46) and the first one-way tube (45).

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