A photocatalytic membrane coupled reactor

Abstract

The present invention discloses a photocatalytic membrane coupling reactor, comprising a base, a water storage tank is fixed on the left side of the upper surface of the base, a photocatalytic box is fixedly connected to the right side of the upper surface of the base, and a membrane separation unit is bolted to the left side of the upper surface of the base, and a drainage port is opened below the left side of the membrane separation unit. The photocatalytic membrane coupling reactor uses ultraviolet light emitted by multiple ultraviolet lamps to irradiate wastewater containing catalysts, and then the wastewater after photocatalysis returns to the water storage tank through a reflux pipe, and then the membrane separation unit can separate purified water and catalyst powder, so that the purified water is discharged from the drainage port, and at the same time, the connecting pipe returns the separated catalyst powder to the water storage tank again, so that the catalyst is always circulated in the water storage tank and the photocatalytic box, so that the non-uniform photocatalytic process can be continuously carried out, and the catalyst is easy to replenish and recover.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater purification and treatment, in particular to a photocatalytic membrane coupled reactor. Background Art

[0002] With the rapid development of my country's industry, agriculture, fishery and animal husbandry, these fields will release a large amount of wastewater, and the pollutants in the wastewater are relatively complex, mainly benzene and its derivatives, phenols and their derivatives, and organic pollutants such as antibiotics. At the same time, industrial wastewater has an inevitable severity to the ecosystem and human health. At this time, it is necessary to use catalytic membrane coupled reactors to purify the wastewater;

[0003] For example, a photocatalytic and biologically coupled water treatment reactor with publication number CN218810796U integrates the photocatalytic zone and the biofilm treatment zone in the same reactor, and has a compact structure; further, the treated water flows out of the photocatalytic zone through an overflow water flow channel and then enters the biofilm treatment zone, thereby avoiding the inhibition of microbial activity by hydroxyl radicals generated during the photocatalytic process, thereby improving the degradation efficiency; further, one end of the flexible fiber strip carrying the catalyst is fixed to the bottom of the photocatalytic zone, thereby improving the utilization rate of the catalytic space;

[0004] For example, a carbon-based manganese dioxide photocatalytic membrane reactor with a publication number of CN217025410, in which photocatalysts such as manganese dioxide or titanium dioxide are often easy to float in water and easily agglomerate during the catalytic reaction, so that the catalytic activity of the photocatalyst cannot be fully exerted, and during the operation of the equipment, the photocatalyst is easily lost with the outflow of wastewater; by setting an agitator and a membrane assembly inside the photocatalytic reactor, on the one hand, the stirring action of the agitator is conducive to the dispersion of the photocatalyst in the water body, making it difficult to float or agglomerate in the water body, which is conducive to promoting the dispersion of the photocatalyst in the water body, so that the catalytic activity of the photocatalyst can be fully exerted; on the other hand, the use of the membrane assembly not only has a certain adsorption and removal effect on the dye in the wastewater, but also can basically completely retain the photocatalyst in the equipment without losing it, so that the equipment can be stably operated, and at the same time, the operation efficiency is high, and the dye in the wastewater can be effectively removed, and the removal rate is high. For example, when acid red wastewater is treated, the removal rate of acid red can reach more than 70%, which perfectly solves the problem that the existing photocatalytic wastewater treatment device has a low removal rate of dyes in wastewater;

[0005] When the above technical solution is used, wastewater is added into the device, and a photocatalyst is added, and then the wastewater is stirred and mixed using an agitator, which is conducive to promoting the dispersion of the photocatalyst in the water body. The wastewater is then filtered using a membrane assembly. However, after the membrane assembly separates and purifies water and catalyst powder, it lacks the function of recovering the catalyst powder, resulting in the separated catalyst powder remaining on the membrane assembly, which in turn affects the subsequent filtration effect. At the same time, the wastewater cannot be continuously photocatalytically treated, resulting in poor purification effect of the wastewater.

[0006] Therefore, we proposed a photocatalytic membrane coupled reactor to solve the above problems. Summary of the invention

[0007] The purpose of the present invention is to provide a photocatalytic membrane coupled reactor to solve the problem that the membrane assembly proposed in the above background technology lacks the function of recovering the catalyst powder after separating and purifying water and catalyst powder, resulting in the separated catalyst powder remaining on the membrane assembly, thereby affecting the subsequent filtration effect, and at the same time, it is impossible to continuously perform photocatalytic treatment on the wastewater, resulting in poor purification effect of the wastewater.

[0008] To achieve the above object, the present invention provides the following technical solution: a photocatalytic membrane coupled reactor, comprising a base, a water storage tank is fixed on the left side of the upper surface of the base, a photocatalytic box is fixedly connected to the right side of the upper surface of the base, and a membrane separation unit is bolted to the left side of the upper surface of the base;

[0009] A drainage port is provided at the lower part of the left side of the membrane separation unit, a circulation pump is bolted to the left and right sides of the upper surface of the base, a water inlet is fixed at the upper part of the left side of the water storage tank, and an emptying port is provided at the bottom of the water storage tank;

[0010] It also includes: a storage hopper is arranged on the left side of the top of the water storage tank, a motor is bolted to the middle position of the top of the water storage tank, a discharge pipe is arranged inside the membrane separation unit, and the bottom of the discharge pipe passes through the inside of the membrane separation unit;

[0011] A stirring rod is connected through the top of the inner wall of the water storage tank, and the top of the stirring rod is fixedly connected to the output end of the motor, and a second delivery pipeline is fixedly connected to the upper right side of the membrane separation unit and the left side of the bottom of the water storage tank, and the opposite ends of the two second delivery pipelines are connected to the two ends of the left circulation pump;

[0012] A delivery pump is bolted to one side of the upper surface of the base close to the membrane separation unit, and a connecting pipe is fixedly connected to the bottom of the discharge pipe and the upper left side of the water storage tank;

[0013] The opposite ends of the connecting pipe are connected to the two ends of the delivery pump, the top of the inner wall of the photocatalytic box is penetrated by an ultraviolet lamp at an equal angle, a quartz glass tube is arranged on the outside of the ultraviolet lamp, and a return pipe is installed on the top bolt of the photocatalytic box;

[0014] One end of the return pipe is fixedly connected to the top of the water tank, and a first delivery pipe is installed on the right side of the bottom of the water tank and below the inside of the photocatalytic box. The opposite ends of the two first delivery pipes are connected to the two ends of the right circulation pump, and the inner wall of the photocatalytic box is coated with a reflective layer.

[0015] Preferably, a plurality of filter membranes are installed at equal intervals inside the membrane separation unit, and the membrane material of the filter membrane is an outer membrane ultrafiltration membrane.

[0016] Preferably, the quartz glass tubes are arranged in a spiral shape, and a separate ultraviolet lamp tube is installed at the center position of the four quartz glass tubes.

[0017] Preferably, the photocatalytic box is connected to the interior of the water tank through a reflux pipe, the bottom of the plurality of quartz glass tubes is sealedly connected to the outer side of the right end of the first delivery pipe through a flange, and the top of the plurality of quartz glass tubes is sealedly connected to the outer side of the right end of the reflux pipe through a flange, the plurality of quartz glass tubes are interconnected with the interiors of the first delivery pipe and the reflux pipe, and the discharge pipe is connected to the interior of the water tank through a connecting pipe.

[0018] Preferably, the stirring rod is connected to the water tank by a bearing, the internal bearing of the discharge pipe is connected to a transmission rod, and the top of the transmission rod passes through the discharge pipe and the interior of the membrane separation unit, and the stirring rod and the outer side of the upper end of the transmission rod are connected by a pulley assembly.

[0019] Preferably, a recovery port is opened at an equal angle on the outside of the discharge pipe, and a slide groove is opened at an equal angle inside the discharge pipe, the inner wall of the slide groove is slidably connected with a sealing plate, and tooth blocks are installed at equal intervals on the side of the sealing plate, the top equiangular bearings of the inner wall of the discharge pipe are connected to a driven gear, and the connection position between the shaft end of the driven gear and the discharge pipe is installed with a vortex spring, the middle position inside the discharge pipe is rotatably connected with a sleeve, and the sleeve is mounted on the outside of the transmission rod, the outer side of the sleeve is fixed with an incomplete gear, and a ratchet assembly is installed between the sleeve and the transmission rod.

[0020] Preferably, the side surfaces of the four blocking plates are all arranged in a sawtooth shape, and the four driven gears are all meshingly connected with the incomplete gear and the multiple gear blocks.

[0021] Preferably, a support plate is fixedly connected to the lower part of the storage hopper, and a feed port is opened on the right side of the support plate, a baffle is slidably connected to the left side of the support plate, and a return spring is installed between the left side of the baffle and the inner wall of the support plate, a half gear is fixedly sleeved on the outer side of the upper end of the stirring rod, a driving gear is connected to the left bearing of the half gear inside the water tank, and the driving gear and the baffle are connected by a traction rope.

[0022] Preferably, the driving gear and the half gear are meshingly connected, one end of the traction rope is wound around the shaft end of the driving gear, and the other end of the traction rope is fixed to the left side of the baffle.

[0023] Compared with the prior art, the beneficial effects of the present invention are: the photocatalytic membrane coupled reactor adopts a new structural design, the specific contents of which are as follows:

[0024] 1. The motor drives the stirring rod to rotate in the forward direction, which can stir and mix the wastewater and photocatalyst in the water tank, thereby promoting the dispersion of the photocatalyst in the water body;

[0025] Furthermore, the right circulation pump transports the wastewater in the water storage tank through the first delivery pipe to multiple quartz glass tubes, and at the same time uses the ultraviolet light emitted by multiple ultraviolet lamps to irradiate the wastewater, which can degrade or transform the organic pollutants in the wastewater, and then the wastewater after photocatalysis returns to the water storage tank through the reflux pipe. After repeating the above operation for many times, the wastewater after photocatalysis in the water storage tank is transported to the membrane separation unit through the second delivery pipe by the left circulation pump, which can be used to separate purified water and catalyst powder. At the same time, the purified water is discharged from the drain port, and then the separated catalyst powder is returned to the water storage tank again through the delivery pump and the connecting pipe, so that the catalyst is always circulated in the water storage tank and the photocatalytic tank, so that the non-uniform photocatalytic process can be continuously carried out, which is easy to replenish and recover the catalyst.

[0026] 2. When the motor drives the stirring rod to rotate in the opposite direction, the stirring rod uses the pulley assembly to drive the transmission rod to rotate synchronously, and the ratchet assembly drives the sleeve to rotate, so that the incomplete gear rotates and drives the meshing multiple driven gears to rotate synchronously. Then, the multiple driven gears drive the meshing blocking plates to move in the chute so that they no longer block the recovery port. At this time, the catalyst powder on the membrane separation unit enters the discharge pipe from the recovery port and is recovered;

[0027] Furthermore, when the motor continues to drive the stirring to rotate in the reverse direction, the incomplete gear is no longer meshed with the multiple driven gears, so that the multiple driven gears rotate in the reverse direction under the stored force of the vortex spring and drive the meshed blocking plate to reset, thereby blocking the recovery port and preventing wastewater from entering the discharge pipe;

[0028] 3. The motor drives the stirring rod to rotate forward, so that the stirring rod drives the half gear to intermittently drive the meshing driving gear to rotate. At the same time, the driving gear rotates and reels the traction rope, and then the traction rope is used to pull the baffle to move so that it no longer blocks the feed port. At this time, the catalyst in the storage hopper can automatically fall into the water storage tank, so there is no need to manually add catalyst, reduce the workload of staff, and improve work efficiency;

[0029] Furthermore, when the half gear is not engaged with the driving gear, the driving gear no longer reels in the traction rope. At this time, the baffle is reset under the elastic force of the reset spring and blocks the feed port, thereby enabling quantitative addition of catalyst to be achieved, avoiding excessive or insufficient addition each time, which would affect the purification effect of the wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the main cross-sectional structure of the present invention;

[0031] Figure 2 The figure is a schematic diagram of the top view of the quartz glass tube and the ultraviolet lamp tube of the present invention;

[0032] Figure 3 This is a schematic diagram of the main cross-sectional structure of the storage hopper of the present invention;

[0033] Figure 4 This is a schematic diagram of the main cross-sectional structure of the sleeve of the present invention;

[0034] Figure 5 This is a schematic diagram of the top-sectional structure of the discharge pipe of the present invention;

[0035] Figure 6 It is a schematic diagram of the three-dimensional structure of the blocking plate, the driven gear and the incomplete gear of the present invention;

[0036] Figure 7 It is a schematic diagram of the three-dimensional structure of the baffle, half gear and driving gear of the present invention;

[0037] Figure 8 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0038] Fig. 9 For the present invention Figure 1 Enlarged structural diagram at B in the middle.

[0039] In the figure: 1. base; 2. water storage tank; 3. membrane separation unit; 4. stirring rod; 5. photocatalytic box; 6. storage hopper; 7. discharge pipe; 8. quartz glass tube; 9. ultraviolet lamp; 10. reflective layer; 11. first conveying pipeline; 12. reflux pipeline; 13. second conveying pipeline; 14. transmission rod; 15. baffle; 16. sleeve; 17. incomplete gear; 18. blocking plate; 19. reset spring; 20. driven gear; 21. slide groove; 22. vortex spring; 23. ratchet assembly; 24. driving gear; 25. support plate; 26. half gear; 27. traction rope; 28. conveying pump; 29. ​​connecting pipeline. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1-Figure 9 , the present invention provides the following technical solutions: a photocatalytic film coupled reactor;

[0042] Embodiment 1: In order to solve the problem that the membrane assembly in the prior art lacks the function of recovering the catalyst powder after separating and purifying water and catalyst powder, resulting in the separated catalyst powder remaining on the membrane assembly, thereby affecting the subsequent filtration effect, and the wastewater cannot be continuously photocatalytically treated, resulting in poor purification effect of the wastewater, the following scheme is disclosed, and specific reference is made to Figure 1 and Figure 2 As shown, it includes a base 1, a water storage tank 2 is fixed on the left side of the upper surface of the base 1, and a photocatalytic box 5 is fixedly connected to the right side of the upper surface of the base 1, and a membrane separation unit 3 is bolted to the left side of the upper surface of the base 1; a drainage port is opened below the left side of the membrane separation unit 3, a circulation pump is bolted to the left and right sides of the upper surface of the base 1, a water inlet is opened and fixed above the left side of the water storage tank 2, and an emptying port is opened at the bottom of the water storage tank 2;

[0043] It also includes: a storage hopper 6 is arranged on the left side of the top of the water storage tank 2, a motor is bolted to the middle position of the top of the water storage tank 2, a discharge pipe 7 is arranged inside the membrane separation unit 3, and the bottom of the discharge pipe 7 passes through the inside of the membrane separation unit 3; the top of the inner wall of the water storage tank 2 passes through the stirring rod 4, and the top of the stirring rod 4 is fixedly connected to the output end of the motor, the upper right side of the membrane separation unit 3 and the left side of the bottom of the water storage tank 2 are fixedly connected to the second delivery pipeline 13, and the opposite ends of the two second delivery pipelines 13 are connected to the two ends of the left circulation pump, a delivery pump 28 is bolted to one side of the upper surface of the base 1 close to the membrane separation unit 3, the bottom of the discharge pipe 7 and the upper left side of the water storage tank 2 are fixedly connected to the connecting pipe 29, and the opposite ends of the connecting pipe 29 are connected to the two ends of the delivery pump 28, and the top of the inner wall of the photocatalytic box 5 is passed through and installed with an ultraviolet lamp 9 at equal angles; a quartz glass tube 8 is arranged on the outside of the ultraviolet lamp 9, and the quartz glass tube 8 is spirally arranged, and the middle of the four quartz glass tubes 8 A separate ultraviolet lamp 9 is installed at the center position, a return pipe 12 is installed on the top bolt of the photocatalytic box 5, and one end of the return pipe 12 is fixedly connected to the top of the water tank 2, and a first delivery pipe 11 is installed on the right side of the bottom of the water tank 2 and below the inside of the photocatalytic box 5; the opposite ends of the two first delivery pipes 11 are connected to the two ends of the right circulation pump, the photocatalytic box 5 is connected to the inside of the water tank 2 through the return pipe 12, the bottom of a plurality of quartz glass tubes 8 is sealed with the outer side of the right end of the first delivery pipe 11 through a flange, and the top of a plurality of quartz glass tubes 8 is sealed with the outer side of the right end of the return pipe 12 through a flange, and the plurality of quartz glass tubes 8 are connected with the inside of the first delivery pipe 11 and the return pipe 12. The discharge pipe 7 is connected to the inside of the water tank 2 through a connecting pipe 29, and the inner wall of the photocatalytic box 5 is coated with a reflective layer 10; a plurality of filter membranes are installed at equal intervals inside the membrane separation unit 3, and the membrane material in the filter membrane is an outer membrane ultrafiltration membrane;

[0044] When in use, wastewater is added to the water storage tank 2 from the water inlet, and the catalyst is placed in the storage hopper 6 at the same time. Then the motor is started, and the motor drives the stirring rod 4 to rotate, and stirs and mixes the wastewater and the catalyst in the water storage tank 2, which is beneficial to promote the dispersion of the catalyst in the water body, so that the catalytic activity of the catalyst can be fully exerted. Then the right-side circulation pump is started, and the right-side circulation pump conveys the wastewater in the water storage tank 2 to multiple quartz glass tubes 8 through the first conveying pipe 11. At the same time, multiple ultraviolet lamps 9 are started, so that the ultraviolet light emitted by the multiple ultraviolet lamps 9 irradiates the wastewater containing the catalyst, which can degrade or transform the organic pollutants in the wastewater, and then the wastewater after photocatalysis is returned to the water storage tank 2 through the reflux pipe 12. After repeating the above operation many times, the left-side circulation pump is started, and the left-side circulation pump conveys the wastewater in the water storage tank 2 after photocatalysis through the second The conveying pipe 13 is conveyed to the membrane separation unit 3, and can be used to separate purified water and catalyst powder. At the same time, the purified water is discharged from the drain port, and the catalyst powder separated in the discharge pipe 7 is returned to the water storage tank 2 again through the conveying pump 28 and the connecting pipe 29, so that the catalyst is always circulated in the water storage tank 2 and the photocatalytic box 5, so that the continuous non-uniform photocatalytic process can be realized, which is easy to replenish and recover the catalyst. Then, when the catalyst efficiency is reduced to a certain level, it will be reduced or no water will be taken in, and it will enter the concentration mode. After that, a part of the high-concentration catalytic aqueous solution is discharged from the drain port at the bottom of the water storage tank 2, and then a part of the catalyst is replenished from the storage hopper 6. Furthermore, the reflective layer 10 arranged inside the photocatalytic box 5 can reflect the ultraviolet rays emitted by the ultraviolet lamp 9, so that the ultraviolet rays can irradiate the quartz glass tube 8 in all directions.

[0045] Embodiment 2: Different from Embodiment 1, this embodiment utilizes the reverse rotation of the stirring rod 4 to move the blocking plate 18 and no longer block the recovery port, thereby facilitating the recovery of the catalyst powder. Figure 1 and Figure 4-Figure 6 and Fig. 9As shown, the stirring rod 4 is connected to the water tank 2 by a bearing, the internal bearing of the discharge pipe 7 is connected to the transmission rod 14, and the top of the transmission rod 14 passes through the discharge pipe 7 and the inside of the membrane separation unit 3, the stirring rod 4 and the outer side of the upper end of the transmission rod 14 are connected by a pulley assembly, the outer side of the discharge pipe 7 is provided with a recovery port at an equal angle, and the inside of the discharge pipe 7 is provided with a chute 21 at an equal angle, the inner wall of the chute 21 is slidably connected with a blocking plate 18, and the side of the blocking plate 18 is evenly spaced with tooth blocks, and the top of the inner wall of the discharge pipe 7 The driven gear 20 is connected to the equiangular bearing, and the connection position between the shaft end of the driven gear 20 and the discharge pipe 7 is installed with a vortex spring 22. The middle position inside the discharge pipe 7 is rotatably connected with a sleeve 16, and the sleeve 16 is sleeved on the outside of the transmission rod 14. The outer side of the sleeve 16 is sleeved and fixed with a broken gear 17, and a ratchet assembly 23 is installed between the sleeve 16 and the transmission rod 14. The side surfaces of the four blocking plates 18 are all set in a serrated shape, and the four driven gears 20 are meshed with the broken gear 17 and multiple tooth blocks.

[0046] When the motor drives the stirring rod 4 to rotate in the opposite direction, the stirring rod 4 uses the pulley assembly to drive the transmission rod 14 to rotate synchronously. At the same time, the transmission rod 14 uses the ratchet assembly 23 to drive the sleeve 16 to rotate, so that the incomplete gear 17 rotates, and drives the meshing multiple driven gears 20 to rotate synchronously. Then, the multiple driven gears 20 drive the meshing blocking plate 18 to move in the slide groove 21, so that it no longer blocks the recovery port. At this time, the catalyst powder on the membrane separation unit 3 enters the discharge pipe 7 from the recovery port and is recovered. Then, when the motor continues to drive the stirring rod 4 to rotate in the opposite direction, the incomplete gear 17 is no longer meshed with the multiple driven gears 20, so that the multiple driven gears 20 rotate in the opposite direction under the stored force of the vortex spring 22, and drive the meshing blocking plate 18 to reset, so that the recovery port can be blocked to prevent wastewater from entering the discharge pipe 7. Further, when the stirring rod 4 rotates forward, the sleeve 16 will not rotate.

[0047] Embodiment 3: Different from Embodiment 2, this embodiment utilizes the reciprocating movement of the baffle 15 to achieve quantitative addition of catalyst. Figure 1 , Figure 3 , Figure 7 and Figure 8As shown, a support plate 25 is fixedly connected to the lower part of the storage hopper 6, and a feed port is opened on the right side of the support plate 25, a baffle 15 is slidably connected to the left side of the support plate 25, and a return spring 19 is installed between the left side of the baffle 15 and the inner wall of the support plate 25, a half gear 26 is sleeved and fixed on the outer side of the upper end of the stirring rod 4, a driving gear 24 is connected to the left bearing of the half gear 26 inside the water storage tank 2, and the driving gear 24 and the baffle 15 are connected by a traction rope 27, and the driving gear 24 and the half gear 26 are meshedly connected, one end of the traction rope 27 is wound around the shaft end of the driving gear 24, and the other end of the traction rope 27 is fixed to the left side of the baffle 15;

[0048] The motor drives the stirring rod 4 to rotate forward, so that the stirring rod 4 drives the half gear 26 to intermittently drive the meshing driving gear 24 to rotate, and at the same time the driving gear 24 rotates and reels the traction rope 27, and then the traction rope 27 is used to pull the baffle 15 to move so that it no longer blocks the feed port. At this time, the catalyst in the storage hopper 6 can automatically fall into the water storage tank 2, so there is no need to manually add the catalyst, reduce the labor of the staff, and improve work efficiency. Then, when the half gear 26 is not meshed with the driving gear 24, the driving gear 24 no longer reels the traction rope 27. At this time, the baffle 15 is reset under the elastic force of the reset spring 19 and blocks the feed port, so that quantitative addition of catalyst can be achieved to avoid excessive or insufficient amount added each time, which affects the purification effect of the wastewater.

[0049] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A photocatalytic membrane coupled reactor, comprising a base (1), a water storage tank (2) being fixed on the left side of the upper surface of the base (1), a photocatalytic box (5) being fixedly connected on the right side of the upper surface of the base (1), and a membrane separation unit (3) being bolted on the left side of the upper surface of the base (1); A drainage port is provided at the lower portion of the left side of the membrane separation unit (3); a circulation pump is bolted to both left and right sides of the upper surface of the base (1); a water inlet is fixedly provided at the upper portion of the left side of the water storage tank (2); and a drain port is provided at the bottom of the water storage tank (2); It is characterized in that Also includes: A storage hopper (6) is provided on the left side of the top of the water storage tank (2), a motor is bolted to the middle of the top of the water storage tank (2), a discharge pipe (7) is provided inside the membrane separation unit (3), and the bottom of the discharge pipe (7) passes through the inside of the membrane separation unit (3); The top of the inner wall of the water storage tank (2) is penetrated by a stirring rod (4), and the top of the stirring rod (4) is fixedly connected to the output end of the motor; the upper right side of the membrane separation unit (3) and the left side of the bottom of the water storage tank (2) are both fixedly connected to a second delivery pipeline (13), and the opposite ends of the two second delivery pipelines (13) are connected to the two ends of the left circulation pump; A delivery pump (28) is bolted to one side of the upper surface of the base (1) close to the membrane separation unit (3), and a connecting pipe (29) is fixedly connected to the bottom of the discharge pipe (7) and the upper part of the left side of the water storage tank (2); The opposite ends of the connecting pipe (29) are connected to the two ends of the delivery pump (28); an ultraviolet lamp tube (9) is installed at an equal angle through the top of the inner wall of the photocatalytic box (5); a quartz glass tube (8) is arranged on the outside of the ultraviolet lamp tube (9); and a return pipe (12) is installed on the top bolt of the photocatalytic box (5); One end of the return pipe (12) is fixedly connected to the top of the water storage tank (2); a first delivery pipe (11) is installed on the right side of the bottom of the water storage tank (2) and below the inside of the photocatalytic box (5); the opposite ends of the two first delivery pipes (11) are connected to the two ends of the right circulation pump; and the inner wall of the photocatalytic box (5) is coated with a reflective layer (10); The outer side of the discharge pipe (7) is provided with a recovery port at an equal angle, and the inside of the discharge pipe (7) is provided with a slide groove (21) at an equal angle, the inner wall of the slide groove (21) is slidably connected to a blocking plate (18), and the side of the blocking plate (18) is provided with tooth blocks at equal intervals, the top of the inner wall of the discharge pipe (7) is connected to a driven gear (20) at an equal angle bearing, and the connection position between the shaft end of the driven gear (20) and the discharge pipe (7) is provided with a vortex spring (22), the middle position inside the discharge pipe (7) is rotatably connected to a sleeve (16), and the sleeve (16) is sleeved on the outer side of the transmission rod (14), the outer side of the sleeve (16) is sleeved and fixed with a broken gear (17), and a ratchet assembly (23) is installed between the sleeve (16) and the transmission rod (14); A support plate (25) is fixedly connected to the lower part of the storage hopper (6), and a feed port is provided on the right side of the support plate (25). A baffle (15) is slidably connected to the left side of the support plate (25), and a return spring (19) is installed between the left side of the baffle (15) and the inner wall of the support plate (25). A half gear (26) is sleeved and fixed on the outer side of the upper end of the stirring rod (4). A driving gear (24) is connected to the bearing on the left side of the half gear (26) inside the water storage tank (2), and the driving gear (24) and the baffle (15) are connected via a traction rope (27). The driving gear (24) and the half gear (26) are meshedly connected, one end of the traction rope (27) is wound around the shaft end of the driving gear (24), and the other end of the traction rope (27) is fixed to the left side of the baffle (15).

2. A photocatalytic film coupled reactor according to claim 1, characterized in that: A plurality of filter membranes are installed at equal intervals inside the membrane separation unit (3), and the membrane material of the filter membranes is an outer membrane ultrafiltration membrane.

3. A photocatalytic film coupled reactor according to claim 1, characterized in that: The quartz glass tubes (8) are arranged in a spiral shape, and a separate ultraviolet lamp tube (9) is installed at the center position of the four quartz glass tubes (8).

4. The photocatalytic film coupled reactor according to claim 1, characterized in that: The photocatalytic box (5) is connected to the interior of the water storage tank (2) via a return pipe (12); the bottoms of the plurality of quartz glass tubes (8) are sealedly connected to the outer side of the right end of the first delivery pipe (11) via a flange, and the tops of the plurality of quartz glass tubes (8) are sealedly connected to the outer side of the right end of the return pipe (12) via a flange; the plurality of quartz glass tubes (8) are connected to the interiors of the first delivery pipe (11) and the return pipe (12); and the discharge pipe (7) is connected to the interior of the water storage tank (2) via a connecting pipe (29).

5. The photocatalytic film coupled reactor according to claim 1, characterized in that: The stirring rod (4) is connected to the water tank (2) via a bearing, the internal bearing of the discharge pipe (7) is connected to a transmission rod (14), and the top of the transmission rod (14) penetrates the inside of the discharge pipe (7) and the membrane separation unit (3), and the stirring rod (4) and the outer side of the upper end of the transmission rod (14) are connected via a pulley assembly.

6. The photocatalytic film coupled reactor according to claim 1, characterized in that: The side surfaces of the four blocking plates (18) are all arranged in a sawtooth shape, and the four driven gears (20) are all meshingly connected with the incomplete gear (17) and the plurality of gear blocks.

Images