Anti-pollution type epichlorohydrin wet oxidation catalyst membrane filtration separation equipment

Abstract

The invention provides anti-pollution type epichlorohydrin wet oxidation catalyst membrane filtration separation equipment, and relates to the technical field of membrane filtration separation. The anti-pollution type epichlorohydrin wet oxidation catalyst membrane filtration separation equipment comprises a movable frame, a first filter box, a second filter box, a second drainage pipe, a catalyst discharge pipe, a stirring barrel and three water inlet pipes, the first filter box and the second filter box are fixedly installed at the top of the movable frame, the stirring barrel is fixedly installed at the top of the first filter box, and the three water inlet pipes are fixedly installed at the top of the second filter box. A stirring device is arranged in the stirring barrel, and one end of a third drainage pipe is fixedly mounted on the outer wall of the stirring barrel. The anti-pollution type epichlorohydrin wet oxidation catalyst membrane filtration and separation equipment provided by the invention has the advantages that the equipment is convenient to use, impurities influencing the performance of the catalyst can be removed through preliminary filtration, so that the performance of the catalyst is ensured, the filter screen and the membrane can be regularly and automatically cleaned, impurities attached to the surface of the filter screen can be removed, and the impurities can be automatically discharged.

Description

Technical Field

[0001] The present invention relates to the technical field of membrane filtration separation, and particularly to an anti-pollution type membrane filtration separation device for an epoxy chloropropane wet oxidation catalyst. Background Art

[0002] The anti-pollution type epoxy chloropropane wet oxidation catalyst is an important type of catalyst used to treat pollutants such as wastewater generated during the production of epoxy chloropropane. Generally, through the active sites on the catalyst surface interacting with the organic pollutants in the epoxy chloropropane wastewater, the activation energy of the reaction is reduced, making it easier for oxygen to oxidize and decompose the organic matter. During the reaction process, the catalyst undergoes an oxidation-reduction cycle with oxygen, promoting the activation and transfer of oxygen, thereby accelerating the degradation of organic matter.

[0003] When the traditional oxidation catalyst membrane filtration separation device performs membrane filtration separation on the oxidation catalyst, due to the lack of preliminary filtration, the membrane filtration needs to handle various impurities of different sizes simultaneously, resulting in difficulty in achieving the ideal separation accuracy. Moreover, large particle impurities and suspended solids will quickly clog the membrane pores, leading to a sharp decline in membrane flux and requiring frequent membrane cleaning, thereby increasing the maintenance cost and downtime.

[0004] Therefore, it is necessary to provide an anti-pollution type membrane filtration separation device for an epoxy chloropropane wet oxidation catalyst 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 type membrane filtration separation device for an epoxy chloropropane wet oxidation catalyst that is easy to use, can remove impurities affecting the catalyst performance through preliminary filtration, thereby ensuring the catalyst performance, and can regularly and automatically clean the filter screen and the membrane, remove the impurities attached to the surface of the filter screen and automatically discharge them.

[0006] To solve the above technical problems, the anti-pollution type epichlorohydrin wet oxidation catalyst membrane filtration and separation equipment provided by the present invention includes a mobile rack, a first filtration tank, a second filtration tank, a second drain pipe, a catalyst discharge pipe, a stirring barrel and three water inlet pipes. The first filtration tank and the second filtration tank are both fixedly installed on the top of the mobile rack. The stirring barrel is fixedly installed on the top of the first filtration tank. One ends of the three water inlet pipes are all fixedly installed on the stirring barrel. The second drain pipe and the catalyst discharge pipe are both fixedly installed at the bottom of the second filtration tank. A stirring device is provided in the stirring barrel. One end of a third drain pipe is fixedly installed on the outer wall of the stirring barrel, and the other end of the third drain pipe extends into the first filtration tank. Two fixing frames with built-in filter meshes are provided in the first filtration tank. A pipe fixing rack is provided in the first filtration tank, and a spray pipe is fixedly installed on the pipe fixing rack. A water storage tank is fixedly installed on the mobile rack. A diversion pipe is provided at the top of the water storage tank, and one end of the diversion pipe extends into the first filtration tank and is fixedly connected to one end of the spray pipe. A water collecting cylinder is rotatably installed in the second filtration tank. A plurality of filter cylinders are fixedly installed on the outer wall of the water collecting cylinder, and filter membranes are fixedly installed on the filter cylinders. Two cleaning rubber rollers are rotatably installed in the filter cylinders. A second motor is fixedly installed on the top of the second filtration tank, 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 filtration tank, and the water outlet end of the second water pump is fixedly installed with a first drain pipe. The end of the first drain pipe away from the second water pump extends into the water collecting cylinder.

[0007] Preferably, an annular plate is fixedly installed in the second filtration tank. Two fixed connecting plates are fixedly installed at the bottom of the annular plate. Two annular support plates are fixedly installed on the inner walls of the two fixed connecting plates. Annular racks are fixedly installed on the two annular support plates. A second connecting shaft is rotatably installed in the filter cylinder. The end of the second connecting shaft away from the water collecting cylinder extends out of the filter cylinder and is fixedly installed with a gear. The gear meshes with the annular rack. One end of the second connecting shaft located inside the filter cylinder is fixedly installed with an I-shaped rotating plate, and the cleaning rubber roller is rotatably installed on the I-shaped rotating plate.

[0008] Preferably, an observation port is opened on one side of the second filtration tank, and an observation glass is fixedly installed in the observation port.

[0009] Preferably, the stirring device includes a first motor fixedly installed on the top of the stirring barrel. A first stirring rod is provided in the stirring barrel. The 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. A first water pump is fixedly installed on the top of the water storage tank. The other end of the diversion pipe is fixedly connected to the water outlet end of the first water pump. A second suction pipe is arranged in the water storage tank. The other end of the second suction pipe extends outside the water storage tank and is fixedly connected to the water inlet end of the first water pump.

[0011] Preferably, two sewage outlets are arranged on the side of the first filter box away from the second filter box. A water collecting chamber is arranged at the bottom of each of the two sewage outlets. The water collecting chamber is communicated with the sewage outlet. Flow holes are arranged on both sides of the water collecting chamber. The flow holes are communicated with the water collecting chamber. Two drain pipes and a water supply pipe are fixedly installed on the side of the first filter box away from the second filter box. The drain pipes and the water supply pipe are both communicated with the flow holes. The other end of the drain pipe extends into the water storage tank. A third water pump is fixedly installed on the top of the water storage tank. The other ends of the two water supply pipes are both fixedly installed on the water outlet end of the third water pump. A seat is arranged in the water collecting chamber. A sliding groove is fixedly installed on the side of the seat close to the filter screen. A sliding plate is slidably installed in the sliding groove. One end of the fixed frame close to the seat is hinged to the sliding plate. The other end of the fixed frame is hinged to the first filter box. The filter screen is slidably installed in the fixed frame. Four guide bolts are arranged at the bottom of the fixed frame. The top ends of the guide bolts penetrate through the fixed frame and are fixedly connected to the filter screen. A pressure sensor is fixedly installed on the fixed frame. Two guide grooves are fixedly installed on the inner walls of both sides of the first filter box. Driving wheels are arranged in the guide grooves. The driving wheels are rotatably installed on both sides of the pipe fixing bracket.

[0012] Preferably, a third suction pipe is arranged in the water storage tank. One end of the third suction pipe extends outside the water storage tank and is fixedly connected to the water inlet end of the third water pump. Electric valves are fixedly installed on the outer walls of both drain pipes. 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. The two ends of the second spring are respectively fixedly connected to the filter screen and the fixed frame.

[0014] Preferably, a sewage concentration tank is fixedly installed on the moving frame, a drainage pipe is fixedly installed at the bottom of the first filter tank, the bottom end of the drainage pipe is fixedly connected to the sewage concentration tank, a partition net is fixedly installed in the sewage concentration tank, a feeding pipe is fixedly installed at the top of the partition net, the top end of the feeding pipe extends outside the sewage concentration tank, a third motor is fixedly installed at the top of the sewage concentration tank, 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 concentration tank, penetrates through the partition net and is fixedly installed with a stirring shaft, a water collecting cylinder is fixedly installed at the top of the sewage concentration tank, a piston head is hermetically and slidably installed in the water collecting cylinder, a lifting rod is arranged at the top of the water collecting cylinder, the bottom end of the lifting rod extends into the water collecting cylinder and is fixedly connected to the piston head, a first connecting shaft is rotatably installed at the top of the sewage concentration tank, a convex plate is fixedly installed at one end of the first connecting shaft away from the third motor, a first bevel gear is fixedly installed at the other end of the first connecting shaft, a second bevel gear is fixedly installed on the outer wall of the connecting rod, the second bevel gear meshes with the first bevel gear, a second one-way pipe is fixedly installed at the bottom end of the water collecting cylinder, the bottom end of the second one-way pipe extends into the sewage concentration tank, a first one-way pipe is fixedly installed on the outer wall of the water collecting cylinder, and the end of the first one-way pipe away from the third motor extends into the water storage tank.

[0015] Preferably, a first spring is sleeved outside the lifting rod, two ends of the first spring are respectively fixedly connected to the lifting rod and the water collecting cylinder, and one-way valves are fixedly installed outside both the second one-way pipe and the first one-way pipe.

[0016] Compared with the related art, the anti-pollution type epoxy chloropropane wet oxidation catalyst membrane filtration and separation equipment provided by the present invention has the following beneficial effects:

[0017] The present invention provides an anti-pollution type epoxy chloropropane wet oxidation catalyst membrane filtration and separation device. Through the cooperation of 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 is fully contacted and mixed with the catalyst, accelerating the oxidation reaction process, enabling the anti-pollution type epoxy chloropropane wet oxidation catalyst to be evenly dispersed in the liquid, increasing the contact area between the catalyst and the reactants, giving full play to the activity of the catalyst, improving the catalytic efficiency, preventing the catalyst particles from aggregating with each other to form large particles, and avoiding the reduction of the active sites of the catalyst and sedimentation caused by agglomeration; Through the cooperation of a water storage tank, a second suction pipe, a first water pump, a diversion pipe, a pipe fixing bracket, a fixed connecting plate, a spray pipe, an annular support plate, an annular plate, a filter cylinder, a cleaning rubber roller, a filter membrane, an I-shaped rotating plate, a gear, a second connecting shaft and an annular rack, the spray pipe and the cleaning rubber roller can timely remove the pollutants on the filter screen and the membrane surface, prevent the membrane pores from being blocked, keep the flux stable during the filtration process, avoid the decrease of the filtration speed caused by blockage, avoid the chemical corrosion or physical wear of the membrane caused by the long-term attachment of pollutants, reduce the risk of damage such as membrane rupture and perforation, and prevent the filter screen from deforming and being damaged due to the accumulation of impurities, maintaining the mechanical strength and structural integrity of the filter screen, ensuring that it can continuously play the role of preliminary filtration and providing a good precondition for membrane filtration;

[0018] Through the cooperation of a third suction pipe, a third water pump, a drainage pipe, a water supply pipe, a driving wheel, a supporting seat, a filter screen, a pipe fixing bracket, a sliding plate, a pressure sensor, a fixed frame, a second spring and a guiding bolt, when too many impurities adhere and accumulate on the filter screen, the filter screen descends to contact the pressure sensor, which can realize the timely discharge of impurities, prevent a large number of pores of the filter screen from being blocked, enable the filter screen to continuously maintain good filtration performance, allow the fluid to pass smoothly, avoid the influence of impurity accumulation on the filtration accuracy, ensure the effective separation of the catalyst from other substances, prevent the filter screen from being damaged by extrusion and wear caused by excessive accumulation of impurities, and can eliminate the need for frequent manual cleaning of the impurities on the filter screen, reducing the manual maintenance workload and cost, and also reducing the mistakes and safety risks that may be brought by manual operation;

[0019] Through the cooperation of the drainage pipe, sewage collection tank, third motor, second bevel gear, connecting rod, isolation net, second one-way pipe, first one-way pipe, first spring, lifting rod, water collecting cylinder, piston head, convex plate, first connecting shaft and first bevel gear, the cleaned water is recycled, which can replace part of the fresh water for cleaning and other links of the device, reduce the dependence on fresh water resources, realize the reuse of water resources, form a water cycle in the device, improve the water utilization rate in the whole production process. When the third motor starts, it can provide continuous power for the water cycle, ensure that the water continuously flows in the circulation system, so that the treated water can be timely transported into the water storage tank, ensure the continuity of recycling, and the flow and stirring effect of the water during the extraction process can make the substances in the water mix more evenly, which helps the treatment agent to 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 FIG. is a schematic structural diagram of the first embodiment of the anti-pollution type epichlorohydrin wet oxidation catalyst membrane filtration and separation equipment provided by the present invention;

[0021] Figure 2 is Figure 1 a schematic diagram of another perspective of the structure shown;

[0022] Figure 3 is Figure 1 a schematic cross-sectional view of the stirring barrel shown;

[0023] Figure 4 is Figure 1 a schematic cross-sectional view of the water storage tank and the first filter tank shown;

[0024] Figure 5 is Figure 1 a schematic cross-sectional view of the structures such as the second filter tank, water collecting cylinder and filter cylinder shown;

[0025] Figure 6 is Figure 5 a schematic complete view of the structures such as the water collecting cylinder, filter cylinder and annular rack shown;

[0026] Figure 7 is Figure 6 a schematic diagram of the cooperation of the structures such as the annular plate, fixed connecting plate and annular rack shown;

[0027] Figure 8 is Figure 5 an enlarged schematic view of part A shown;

[0028] Figure 9 FIG. is a schematic diagram of the second embodiment of the anti-pollution type epichlorohydrin wet oxidation catalyst membrane filtration and separation equipment provided by the present invention;

[0029] Figure 10 is Figure 9 a schematic diagram of another perspective of the structure shown;

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

[0031] Figure 12 is Figure 11 a schematic diagram of the cooperation of the water collection chamber, the circulation hole, the drainage conduit and the water supply pipe shown;

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

[0033] Figure 14 is Figure 13 a schematic diagram of a partial structure shown;

[0034] Figure 15 is Figure 11 a schematic cross-sectional view of the abutment and the filter screen shown;

[0035] Figure 16 is Figure 11 an enlarged schematic diagram of part B shown;

[0036] Figure 17 is Figure 11 a schematic diagram of a partial structure shown;

[0037] Figure 18 is Figure 15 an enlarged schematic diagram of part D shown;

[0038] Figure 19 is Figure 15 an enlarged schematic diagram of part C shown;

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

[0040] Figure 21 is Figure 20 a schematic diagram of a partial structure shown;

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

[0042] Figure 23 is Figure 21 a schematic diagram of a partial structure shown;

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

[0044] Figure 25 For Figure 21 Schematic diagram of the cooperation of the second bevel gear, the first bevel gear and the convex plate shown in the figure.

[0045] Reference numerals in the figure: 1, moving frame; 2, I-shaped rotating plate; 3, water storage tank; 4, first water pump; 5, first filter tank; 6, drainage pipe; 7, stirring 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 tank; 15, cleaning rubber roller; 16, second water pump; 17, first suction pipe; 18, catalyst discharge pipe; 19, second drain pipe; 20, convex plate; 21, first stirring rod; 22, third drain pipe; 23, second suction pipe; 24, spray pipe; 25, pipe fixing bracket; 26, filter screen; 27, fixing frame; 28, water collecting cylinder; 29, filter membrane; 30, gear; 31, filter cylinder; 32, annular plate; 33, water collecting barrel; 34, annular rack; 35, second connecting shaft; 36, fixed connecting plate; 37, observation glass; 38, annular support plate; 39, isolation net; 40, drainage 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, abutting seat; 50, piston head; 51, first spring; 52, sliding plate; 53, pressure sensor; 54, second spring; 55, guiding bolt; 56, drainage pipe; 57, sewage concentration tank; 58, second bevel gear; 59, third motor. Specific embodiments

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

[0047] First embodiment:

[0048] Please refer to Figures 1 - 8, in the first embodiment of the present invention, the anti-pollution type epoxy chloropropane wet oxidation catalyst membrane filtration separation device includes: a mobile rack 1, a first filtration tank 5, a second filtration tank 14, a second drain pipe 19, a catalyst discharge pipe 18, a stirring tank 7 and three water inlet pipes 8. The first filtration tank 5 and the second filtration tank 14 are both fixedly installed on the top of the mobile rack 1. The stirring tank 7 is fixedly installed on the top of the first filtration tank 5. One ends of the three water inlet pipes 8 are all fixedly installed on the stirring tank 7. The second drain pipe 19 and the catalyst discharge pipe 18 are both fixedly installed at the bottom of the second filtration tank 14. A stirring device is provided in the stirring tank 7. One end of a third drain pipe 22 is fixedly installed on the outer wall of the stirring tank 7, and the other end of the third drain pipe 22 extends into the first filtration tank 5. A valve is installed on the third drain pipe 22. After the liquid in the stirring tank 7 is stirred and mixed, the valve is opened and the liquid is transported into the first filtration tank 5 through the third drain pipe 22. Two fixing frames 27 with built-in filter screens 26 are provided in the first filtration tank 5. In this embodiment, the filter screen 26 is inside the fixing frame 27. Since the filter screen 26 has a certain inclination angle, when the water source is sprayed out by the spray pipe 24, the impurities on the filter screen 26 can be washed to the place with a lower inclination degree of the filter screen 26, 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 be selected with a pore size larger than the particle size of the oxidation catalyst but smaller than the particle size of the impurities. For example, if the impurities are large-particle-size solid particles, and the oxidant and catalyst are in a small molecule or ionic state, a coarse filter screen with a larger pore size can be selected. In this way, the impurities can be filtered out without filtering out the oxidation catalyst. And the two filter screens 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 filtration tank 5, and a spray pipe 24 is fixedly installed on the pipe fixing frame 25. A water storage tank 3 is fixedly installed on the mobile rack 1. A drainage pipe 6 is provided at the top of the water storage tank 3. One end of the drainage pipe 6 extends into the first filtration tank 5 and is fixedly connected to one end of the spray pipe 24. A water collecting cylinder 28 is rotatably installed in the second filtration tank 14. A plurality of filter cylinders 31 are fixedly installed on the outer wall of the water collecting cylinder 28. Filter membranes 29 are fixedly installed on the filter cylinders 31. Two cleaning rubber rollers 15 are rotatably installed in the filter cylinders 31. A second motor 11 is fixedly installed on the top of the second filtration tank 14. The output shaft of the second motor 11 is fixedly connected to the water collecting cylinder 28. A second water pump 16 is fixedly installed on the top of the first filtration tank 5. The water outlet end of the second water pump 16 is fixedly installed with a first drain pipe 10. The end of the first drain pipe 10 away from the second water pump 16 extends into the water collecting cylinder 28.

[0049] A ring plate 32 is fixedly installed inside the second filter box 14. Two fixed connection plates 36 are fixedly installed at the bottom of the ring plate 32. Two annular support plates 38 are fixedly installed on the inner walls of the two fixed connection plates 36. Annular racks 34 are fixedly installed on the two annular support plates 38. A second connection shaft 35 is rotatably installed inside the filter cylinder 31. One end of the second connection shaft 35 far from the water collecting cylinder 28 extends outside the filter cylinder 31 and is fixedly installed with a gear 30. The gear 30 meshes with the annular rack 34. One end of the second connection shaft 35 located inside the filter cylinder 31 is fixedly installed with an I-shaped rotating plate 2. The cleaning rubber roller 15 is rotatably installed on the I-shaped 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 inside the observation port.

[0051] The stirring device includes a first motor 9 fixedly installed on the top of the stirring barrel 7. A first stirring rod 21 is arranged inside the stirring barrel 7. The 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. The other end of the first suction pipe 17 is fixedly connected to the water inlet end of the second water pump 16. A first water pump 4 is fixedly installed on the top of the water storage tank 3. 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 arranged inside the water storage tank 3. The other end of the second suction pipe 23 extends outside the water storage 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 epoxy chloropropane wet oxidation catalyst membrane filtration and separation equipment provided by the present invention is as follows:

[0054] First, the liquid such as the oxidation catalyst is conveyed into the stirring barrel 7 through the water inlet pipe 8. The first motor 9 is started. The output shaft of the first motor 9 drives the first stirring rod 21 to rotate, so as to uniformly disperse the anti-pollution epoxy chloropropane wet oxidation catalyst in the liquid. Then, the valve on the third drain pipe 22 is opened. Subsequently, the liquid in the stirring 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 filter screens 26, the pollutants and impurities in the liquid are intercepted by the two filter screens 26. Since the pore size of the filter screen 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 a small molecule or ionic state, the impurities can be filtered out, and the oxidation catalyst will not be filtered. The remaining liquid accumulates inside the first filter tank 5. Subsequently, the second water pump 16 is started. The second water pump 16 extracts the filtered liquid in the first filter tank 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 filter screens 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 collection cylinder 28. Subsequently, the second motor 11 is started. The output shaft of the second motor 11 drives the water collection cylinder 28 to rotate. At this time, the water collection cylinder 28 drives the second connecting shaft 35 to rotate, and drives the I-shaped rotating plate 2 to rotate through the cooperation of the gear 30 and the annular rack 34. The I-shaped 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. Subsequently, the valve at the bottom of the water collection cylinder 28 is opened, and the oxidation catalyst is discharged from the catalyst discharge pipe 18.

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

[0057] The present invention provides an anti-pollution type epichlorohydrin wet oxidation catalyst membrane filtration and separation equipment. Through the cooperation of the water inlet pipe 8, the first stirring rod 21, the first motor 9, the stirring barrel 7 and the third drain pipe 22, when the first stirring rod 21 rotates, the liquid to be separated is fully contacted and mixed with the catalyst, accelerating the oxidation reaction process, making the anti-pollution type epichlorohydrin wet oxidation catalyst evenly dispersed in the liquid, increasing the contact area between the catalyst and the reactants, giving full play to the activity of the catalyst, improving the catalytic efficiency, preventing the catalyst particles from aggregating with each other to form large particles, and avoiding the reduction of the active sites of the catalyst and sedimentation caused by agglomeration; through the cooperation of the water storage tank 3, the second suction pipe 23, the first water pump 4, the drainage pipe 6, the pipe fixing frame 25, the spray pipe 24, the annular plate 32, the filter cylinder 31, the cleaning rubber roller 15, the filter membrane 29, the I-shaped rotating plate 2, the gear 30, the second connecting shaft 35 and the annular rack 34, the spray pipe 24 and the cleaning rubber roller 15 can timely remove the 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 decrease of the filtration speed caused by blockage, avoid the chemical corrosion or physical wear of the membrane caused by the long-term attachment of pollutants, reduce the risk of damage such as membrane rupture and perforation, and prevent the filter screen from deforming and being damaged due to the accumulation of impurities, maintaining the mechanical strength and structural integrity of the filter screen, ensuring that it can continuously play the role of preliminary filtration, and providing a good precondition guarantee for membrane filtration.

[0058] Second Embodiment:

[0059] Based on the anti-pollution type epichlorohydrin wet oxidation catalyst membrane filtration separation equipment provided in the first embodiment of the present application, another anti-pollution type epichlorohydrin wet oxidation catalyst membrane filtration separation equipment is proposed in the second embodiment of the present application. The second embodiment is merely a preferred manner of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0060] The following further describes the second embodiment of the present invention in conjunction with the drawings and embodiments.

[0061] Please refer to Figures 9 - 19 , the anti-pollution type epichlorohydrin wet oxidation catalyst membrane filtration separation equipment further includes two sewage outlets, the sewage outlets are arranged on the side of the first filter box 5 away from the second filter box 14, water collection chambers are provided at the bottoms of the two sewage outlets, the water collection chambers are communicated with the sewage outlets, flow holes are provided on both sides of the water collection chambers, the flow holes are communicated with the water collection chambers, a dust collection box is further installed on the side of the first filter box 5 away from the second filter box 14, and a dust discharge pipe is further installed at the bottom of the dust collection box. When the impurities on the filter screen 26 are excessive and drive the filter screen 26 to descend, the filter screen 26 contacts the pressure sensor 53. At this time, the electronic valve on the drain pipe 40 is opened, the water in the water collection chamber is discharged into the water storage tank 3 through the drain pipe 40, the abutment 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 drain 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, the other ends of the drain pipes 40 extend into the water storage tank 3, a third water pump 43 is fixedly installed on the top of the water storage tank 3, and the other ends of the two water supply pipes 42 are fixedly installed on the water outlet end of the third water pump 43. An abutment 49 is arranged in the water collection chamber, a sliding groove is fixedly installed on the side of the abutment 49 close to the filter screen 26, a sliding plate 52 is slidably installed in the sliding groove, one end of the fixed frame 27 close to the abutment 49 is hinged to the sliding plate 52, and the other end of the fixed frame 27 is hinged to 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 ends of the guide bolts 55 penetrate through the fixed frame 27 and are fixedly connected with the filter screen 26, a pressure sensor 53 is fixedly installed on the fixed frame 27, and two guide grooves are fixedly installed on the inner walls of both sides of the first filter box 5, a driving wheel 47 is arranged in the guide grooves, and the driving wheel 47 is rotatably installed on both sides of the pipe fixing bracket 25.

[0062] The water storage tank 3 is provided with a third suction pipe 44. One end of the third suction pipe 44 extends outside the water storage tank 3 and is fixedly connected to the water inlet end of the third water pump 43. Electric valves are fixedly installed on the outer walls of the two drainage pipes 40. The electric valves will only open when the filter screen 26 contacts the pressure sensor 53, which facilitates the discharge of the water in the water collection chamber. Check valves are fixedly installed on the outer sides of the two water supply pipes 42. The check valves can prevent water from flowing back when filling water into the water collection chamber.

[0063] A second spring 54 is sleeved outside the guide bolt 55. The two ends of the second spring 54 are respectively fixedly connected to the filter screen 26 and the fixed frame 27.

[0064] First, before filtration, open the valve on the water supply pipe 42, and then turn on 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 continuously rises, it drives the abutment 49 to rise, and the top of the abutment 49 contacts the inner wall of the top of the sewage outlet. Subsequently, during filtration, impurities and the like accumulate on the filter screen 26. When there are too many impurities on the filter screen 26 and it drives the filter screen 26 to descend and contact the pressure sensor 53, the electric valve on the drainage pipe 40 opens. The water in the water collection chamber is discharged into the water storage tank 3 again through the drainage pipe 40. The abutment 49 descends and opens the sewage outlet. Then, the driving wheel 47 starts, driving the pipe fixing frame 25 to move towards the dust collection box. The first water pump 4 extracts the water in the water storage tank 3 through the second suction pipe 23 and transports it to the spray pipe 24 through the diversion pipe 6 to flush the impurities on the filter screen 26. The flushed impurities enter the dust collection box and are discharged from the dust discharge pipe at the bottom. Through the arrangement of the above components in the present invention, when too many impurities adhere and accumulate on the filter screen 26 and the filter screen 26 descends to contact the pressure sensor 53, it can achieve timely discharge of impurities, prevent a large number of filter pores from being blocked, enable the filter screen to continuously maintain good filtering performance, allow the fluid to pass smoothly, avoid affecting the filtering accuracy due to impurity accumulation, ensure the effective separation of the catalyst from other substances, prevent excessive accumulation of impurities from causing extrusion, wear and other damages to the filter screen, and can eliminate the need for manual frequent cleaning of the filter screen impurities, reducing the manual maintenance workload and cost, and also reducing the mistakes and safety risks that may be brought by manual operation.

[0065] Third Embodiment:

[0066] Based on the anti-pollution type epichlorohydrin wet oxidation catalyst membrane filtration and separation equipment provided in the second embodiment of the present application, the third embodiment of the present application proposes another anti-pollution type epichlorohydrin wet oxidation catalyst membrane filtration and separation equipment. The third embodiment is merely a preferred mode of the second embodiment, and the 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 in conjunction with the accompanying drawings and embodiments.

[0068] Please refer to Figures 20 - 25 , the anti-pollution type epichlorohydrin wet oxidation catalyst membrane filtration separation device further includes a sewage concentration tank 57, the sewage concentration tank 57 is fixedly installed on the mobile frame 1, a drainage pipe 56 is fixedly installed at the bottom of the first filtration tank 5, a valve is installed on the drainage pipe 56, and it is opened after the filtration is completed and the liquid in the first filtration tank 5 is extracted, so as to avoid part of the oxidation catalyst from entering the sewage concentration tank 57. The bottom end of the drainage pipe 56 is fixedly connected to the sewage concentration tank 57. A separation net 39 is fixedly installed in the sewage concentration tank 57. A feeding pipe is fixedly installed at the top of the separation net 39, and the top end of the feeding pipe extends outside the sewage concentration tank 57. A third motor 59 is fixedly installed at the top of the sewage concentration tank 57. One end of a connecting rod 41 is fixedly installed on the output shaft of the third motor 59. The bottom end of the connecting rod 41 extends into the sewage concentration tank 57, penetrates through the separation net 39 and is fixedly installed with a stirring shaft. The connecting rod 41 drives the stirring shaft at the bottom end to stir the water in the sewage concentration tank 57, so that the water is fully mixed and reacted with alum or activated carbon, and the impurities are quickly precipitated. A water collecting cylinder 33 is fixedly installed at the top of the sewage concentration tank 57. A piston head 50 is hermetically slidably installed in the water collecting cylinder 33. A lifting rod 48 is arranged at the top of the water collecting cylinder 33. The bottom end of the lifting rod 48 extends into the water collecting cylinder 33 and is fixedly connected to the piston head 50. A first connecting shaft 12 is rotatably installed at the top of the sewage concentration tank 57. A convex plate 20 is fixedly installed at one end of the first connecting shaft 12 away from the third motor 59. A first bevel gear 13 is fixedly installed at the other end of the first connecting shaft 12. A second bevel gear 58 is fixedly installed on the outer wall of the connecting rod 41. The second bevel gear 58 meshes with the first bevel gear 13. The bottom end of the water collecting cylinder 33 is fixedly installed with a second one-way pipe 46. The bottom end of the second one-way pipe 46 extends into the sewage concentration tank 57. A first one-way pipe 45 is fixedly installed on the outer wall of the water collecting cylinder 33. One end of the first one-way pipe 45 away from the third motor 59 extends into the water storage tank 3.

[0069] A first spring 51 is sleeved outside the lifting rod 48. The two ends of the first spring 51 are respectively fixedly connected to the lifting rod 48 and the water collecting cylinder 33.

[0070] One-way valves are fixedly installed on the outer sides of the second one-way pipe 46 and the first one-way pipe 45. The one-way valves can prevent backflow during water pumping and drainage.

[0071] After the filtration is completed and the filter screen 26 is rinsed, the valve on the drainage pipe 56 is opened, and the water in the first filtration tank 5 is discharged into the sewage collection tank 57 through the drainage pipe 56. Then, substances such as alum or activated carbon are put in from the feeding 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 is fully mixed and reacts with alum or activated carbon. Finally, the impurities precipitate. As the water level continuously rises, the filtered water continuously rises through the isolation net 39. When the connecting rod 41 rotates, through the meshing of the second bevel gear 58 and the first bevel gear 13, it drives the convex plate 20 to rotate. When the convex plate 20 rotates, it presses down on the lifting rod 48, and then the lifting rod 48 is lifted again by the first spring 51. When the piston head 50 rises, the water collecting cylinder 33 extracts the water in the sewage collection tank 57 into the water collecting cylinder 33 through the second one-way pipe 46 and the one-way valve. 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. In this way, the filtered water in the sewage collection tank 57 can be continuously transported to the water storage tank 3. Through the setting of the above components, the cleaned water is recycled, which can replace part of the fresh water for cleaning and other links of the device, reduce the dependence on fresh water resources, realize the reuse of water resources, make the water form a cycle in the device, improve the water utilization rate in the whole production process. When the third motor 59 is started, it can provide continuous power for the water cycle, ensure that the water continuously flows in the circulation system, so that the treated water can be timely transported to the water storage tank 3, and ensure the continuity of the recycling. Moreover, during the extraction process, the flow and stirring action of the water can make the substances in the water mix more evenly, which helps the treatment agent to fully contact and react with the water, improve the water treatment effect, and make the water quality more stable and uniform.

[0072] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly 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 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), wherein the first filter box (5) and the second filter box (14) are both 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 both fixedly mounted on the stirring barrel (7), the second drain pipe (19) and the catalyst discharge pipe (18) are both 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), 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), a filter membrane (29) is fixedly mounted on each of the filter cylinders (31), and the filter cylinders (31) Two cleaning rubber rollers (15) are rotatably installed inside, 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), a second water pump (16) is fixedly installed on the top of the first filter box (5), a first drain pipe (10) is fixedly installed on the water outlet end of the second water pump (16), and one end of the first drain pipe (10) away from the second water pump (16) extends into the water collecting cylinder (28).

2. The anti-pollution epichlorohydrin wet oxidation catalyst membrane filtration separation equipment according to claim 1, characterized in that: An annular plate (32) is fixedly installed in the second filter box (14), two fixed connecting plates (36) are fixedly installed at 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), 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 away from 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).

3. 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.

4. 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 arranged 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).

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

6. 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 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. The first filter box (5) is fixedly installed with two drainage ducts (40) and water supply pipes (42) on a side away from the second filter box (14), and the drainage ducts (40) and the water supply pipes (42) are both connected to the flow holes. The other end of the drainage duct (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 groove is fixedly installed on one side close to the filter screen (26), and a sliding plate (52) is slidably installed in the slide groove. One end of the fixed frame (27) close to the stop 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). 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 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).

7. The pollution-resistant epichlorohydrin wet oxidation catalyst membrane filtration separation equipment according to claim 6, characterized in that: A third suction pipe (44) is provided in the water storage tank (3), one end of the third suction 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).

8. The pollution-resistant epichlorohydrin wet oxidation catalyst membrane filtration separation equipment according to claim 6, 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.

9. 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); the bottom end of the drainage pipe (56) is fixedly connected to the sewage collection box (57); an isolation net (39) is fixedly mounted inside the sewage collection box (57); a delivery pipe is fixedly mounted on the top of the isolation net (39); 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); 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); a piston head (50) is sealingly and slidably mounted inside the water collection cylinder (33); a lifting and lowering mechanism is provided on the top of the water collection cylinder (33); The bottom end of the lifting rod (48) extends into the water collecting tube (33) and is fixedly connected to the piston head (50). The top of the sewage collecting tank (57) is rotatably mounted with a first connecting shaft (12). The end of the first connecting shaft (12) away from the third motor (59) is fixedly mounted with a convex plate (20). 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) is meshed with the first bevel gear (13); a second one-way tube (46) is fixedly mounted on the bottom end of the water collecting tube (33); the bottom end of the second one-way tube (46) extends into the sewage collecting tank (57); a first one-way tube (45) is fixedly mounted on the outer wall of the water collecting tube (33); an end of the first one-way tube (45) away from the third motor (59) extends into the water storage tank (3).

10. The pollution-resistant epichlorohydrin wet oxidation catalyst membrane filtration separation equipment according to claim 9, characterized in that: A first spring (51) is sleeved on the outer side of the lifting rod (48), and two ends of the first spring (51) are respectively fixedly connected to the lifting rod (48) and the water collecting tube (33), and 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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