Ultrafiltration and reverse osmosis membrane cleaning device

Abstract

The utility model relates to the technical field of ultrafiltration reverse osmosis membranes, and discloses an ultrafiltration and reverse osmosis membrane cleaning device which comprises a cleaning pool and two lifting plates, two sides of the cleaning pool are fixedly provided with two jacking air cylinders, the top ends of telescopic rods of the jacking air cylinders are mutually fixed with the lifting plates, and the lifting plates are fixedly connected with the cleaning pool. A cleaning mechanism is installed between the two lifting plates, a rotating mechanism is installed at the position, close to the bottom end, in the cleaning pool, and the cleaning mechanism comprises three protective covers, three fixing pipes and three transverse pipes. Through a fixing pipe and a fastening bolt, the reverse osmosis membrane is convenient to place, take and place, separation during cleaning is prevented, spraying is performed through a spray head and a spray hole, the interior and exterior of the reverse osmosis membrane can be synchronously cleaned, the cleaning efficiency is improved, and cleaning liquid is prevented from splashing outwards during cleaning; the outer surface of the reverse osmosis membrane can be uniformly cleaned through a rotating rod and a transmission belt, dirt is filtered through a filter screen, and cyclic utilization of cleaning liquid is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrafiltration and reverse osmosis membranes, and specifically relates to an ultrafiltration and reverse osmosis membrane cleaning device. Background Technique

[0002] The ultrafiltration reverse osmosis membrane is a composite membrane that combines ultrafiltration and reverse osmosis technologies. The pollutants in coking wastewater have a high concentration and are difficult to degrade. Moreover, due to the presence of nitrogen in coking wastewater, the nitrogen source required for biological purification is excessive. Common advanced treatment processes for coking wastewater mainly include physicochemical treatment, biological treatment, membrane separation, and advanced oxidation methods. Ultrafiltration and microfiltration membranes are often used to remove suspended solids, colloids, bacteria, and some macromolecular organic matter, etc. Their separation mechanisms are the same. Incorrect use of the membrane system will cause a significant reduction in the service life of the membrane, and the funds invested by the water treatment plant in replacing the membrane will increase significantly every year.

[0003] The publication number is CN220345488U, which provides a reverse osmosis membrane cleaning device, including a cleaning box. The outer wall of the axial direction of the cleaning box is embedded with a hydraulic rod, and the power output end of the hydraulic rod is connected with a cover plate. A water delivery pipe passes through the inside of the cover plate, and a hose is connected above the axial direction of the water delivery pipe. A upper sleeve is sleeved at the axial bottom end of the water delivery pipe.

[0004] The above cleaning device has the effect of facilitating the simultaneous placement of multiple groups of reverse osmosis membranes for cleaning to improve efficiency. However, it is easy to cause damage to the outside of the reverse osmosis membrane during cleaning, and it is not convenient to clean the inside and outside simultaneously. Moreover, during the cleaning process, some areas are not cleaned thoroughly, and it is not convenient to clean the outer surface evenly. Content of the Utility Model

[0005] The purpose of the utility model is to provide an ultrafiltration and reverse osmosis membrane cleaning device to solve the technical problems in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] An ultrafiltration and reverse osmosis membrane cleaning device, comprising a cleaning tank and two lifting plates. Two lifting cylinders are fixedly installed on both sides of the cleaning tank. The top end of the telescopic rod of the lifting cylinder is fixedly connected to the lifting plate. A cleaning mechanism is installed between the two lifting plates. A rotating mechanism is installed at the bottom inside the cleaning tank. The cleaning mechanism includes three protective covers, three fixed pipes and three horizontal pipes. The three protective covers are installed between the two lifting plates. The three horizontal pipes are respectively fixedly installed on the tops of the three protective covers. A number of spray nozzles are installed on the periphery of the horizontal pipe and penetrate inside the protective cover. The three fixed pipes are respectively fixedly installed at the bottoms of the three protective covers. A number of spray holes are formed on the periphery of the fixed pipe. Four bearings are installed on the outside of the fixed pipe. A turntable is movably sleeved on the outside of the fixed pipe near the rear end. A fastening bolt is connected and installed at the front end of the outside of the fixed pipe. A pressure plate is movably installed at the rear of the fastening bolt.

[0008] Preferably, the rear ends of the three horizontal pipes and the three fixed pipes are fixedly connected to the same pipe rack. A circulation pump is installed through the bottom near the rear of the cleaning tank. A hose is connected between the water outlet of the circulation pump and the bottom end of the pipe rack.

[0009] Preferably, the front view of the protective cover is in a semi-circular ring shape, and the rear end of the fixed pipe is fixedly connected to the lifting plate at the rear end.

[0010] Preferably, a thread is provided on the periphery of the fixed pipe near the front end. The fastening bolt is sleeved on the outside of the fixed pipe near the front end and is threadedly connected. The pressure plate is located at the rear of the fastening bolt and is rotatably installed through a clamping shaft.

[0011] Preferably, the horizontal pipe and the fixed pipe communicate with the inside of the pipe rack. The inner ring of the bearing is fixedly connected to the fixed pipe, and the outer ring of the bearing is rotatably installed.

[0012] Preferably, the rotating mechanism includes three rotating rods and a filter screen. The filter screen is fixedly installed at a position near the bottom inside the cleaning tank. The three rotating rods are movably installed inside the cleaning tank. Two rubber wheels are fixedly installed on the outside of the rotating rod. Transmission discs are fixedly installed at the rear ends of the two rotating rods on both sides. Two transmission discs are fixedly installed at the rear end of the rotating rod in the middle. Transmission belts are sleeved between the transmission discs on both sides and the two transmission discs on the outside of the middle respectively. A motor is installed at the rear of one of the transmission discs.

[0013] Preferably, the three rotating rods rotate synchronously, and the diameter of the rubber wheel is larger than the diameter of the rotating rod.

[0014] Preferably, the filter screen is located below the three rotating rods, and the output shaft of the motor is fixedly connected to the rotating rod through the transmission disc.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1) For this cleaning device, by setting up a cleaning mechanism, the reverse osmosis membrane is sleeved outside the fixed pipe and is threadedly connected to the front end of the fixed pipe through a fastening bolt, which facilitates the placement and removal of the reverse osmosis membrane and prevents it from detaching during cleaning. Through the rotation of the turntable and the pressure plate, the friction at both ends of the reverse osmosis membrane is reduced. The cleaning liquid is transported into the horizontal pipe and the fixed pipe and sprayed out through the nozzles and spray holes, enabling synchronous cleaning of the inner and outer surfaces of the reverse osmosis membrane, improving the cleaning efficiency. Through the lifting of the protective cover and the lifting plate, the reverse osmosis membrane can be immersed in the cleaning liquid, preventing the cleaning liquid from splashing out during cleaning.

[0017] 2) For this cleaning device, by setting up a rotating mechanism, the reverse osmosis membrane descends to contact the rubber wheel, and the reverse osmosis membrane is driven to rotate by the rotating rod. With the rotation of the bearing, the nozzles spray out the cleaning liquid, enabling uniform cleaning of the outer surface of the reverse osmosis membrane. The dirt is filtered through the filter screen, facilitating the recycling of the cleaning liquid and saving water resources. By driving the three rotating rods to rotate synchronously through the transmission belt, multiple reverse osmosis membranes can be synchronously and uniformly cleaned, reducing the use of motors. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of an ultrafiltration and reverse osmosis membrane cleaning device in an embodiment of the present utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the cleaning mechanism in an embodiment of the present utility model;

[0020] Figure 3 It is a schematic diagram of the internal structure of the fastening bolt in an embodiment of the present utility model;

[0021] Figure 4 It is a schematic diagram of the overall rear structure of the cleaning mechanism in an embodiment of the present utility model;

[0022] Figure 5 It is a schematic diagram of the rear structure inside the rotating mechanism in an embodiment of the present utility model;

[0023] Figure 6 It is a front view after descending in an embodiment of the present utility model.

[0024] In the figure: 1, cleaning pool; 2, lifting plate; 3, jacking cylinder; 4, cleaning mechanism; 5, rotating mechanism; 6, protective cover; 7, fixed pipe; 8, horizontal pipe; 9, nozzle; 10, spray hole; 11, bearing; 12, turntable; 13, fastening bolt; 14, pressure plate; 15, pipe rack; 16, circulation pump; 17, hose; 18, rotating rod; 19, filter screen; 20, rubber wheel; 21, drive disc; 22, transmission belt; 23, motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work shall fall within the protection scope of the present utility model.

[0026] Embodiment 1

[0027] Combined with Figures 1-6 , an ultrafiltration and reverse osmosis membrane cleaning device includes a cleaning tank 1 and two lifting plates 2. Two lifting cylinders 3 are fixedly installed on both sides of the cleaning tank 1. The top ends of the telescopic rods of the lifting cylinders 3 are fixedly connected to the lifting plates 2. A cleaning mechanism 4 is installed between the two lifting plates 2. A rotating mechanism 5 is installed at the bottom inside the cleaning tank 1.

[0028] Referring to Figure 2 、 Figure 3 and Figure 4 , it is further obtained that the cleaning mechanism 4 includes three protective covers 6, three fixed pipes 7 and three cross pipes 8. The three protective covers 6 are installed between the two lifting plates 2. The three cross pipes 8 are respectively fixedly installed on the tops of the three protective covers 6. A number of spray nozzles 9 are installed on the periphery of the cross pipes 8 and penetrate inside the protective covers 6. The three fixed pipes 7 are respectively fixedly installed at the bottoms of the three protective covers 6. A number of spray holes 10 are formed on the periphery of the fixed pipes 7. Four bearings 11 are installed outside the fixed pipes 7. A turntable 12 is movably sleeved on the outside of the fixed pipes 7 near the rear end. A fastening bolt 13 is connected and installed at the front end of the fixed pipe 7. A pressure plate 14 is movably installed at the rear of the fastening bolt 13.

[0029] The rear ends of the three cross pipes 8 and the three fixed pipes 7 are fixedly connected to the same pipe rack 15. A circulating pump 16 is installed through the bottom at the rear of the cleaning tank 1. A hose 17 is connected between the water outlet of the circulating pump 16 and the bottom end of the pipe rack 15. The circulating pump 16 transports the cleaning liquid in the cleaning tank 1 into the pipe rack 15 through the hose 17 and respectively transports it into the three fixed pipes 7 and the three cross pipes 8.

[0030] The front view of the protective cover 6 is in a semi-circular ring shape. The rear end of the fixed pipe 7 is fixedly connected to the lifting plate 2 at the rear end. The protective cover 6 is used to prevent the cleaning liquid from splashing outwards. The fixed pipe 7 and the protective cover 6 are lifted and lowered synchronously with the lifting plate 2.

[0031] The periphery of the fixed tube 7 is provided with threads near the front end. The fastening bolt 13 is sleeved outside the fixed tube 7 near the front end and is threadedly connected. The pressure plate 14 is located behind the fastening bolt 13 and is rotatably arranged through a clamping shaft. The outside of the fixed tube 7 is used to sleeve the reverse osmosis membrane. By rotating the pressure plate 14 and the turntable 12, the friction at both ends of the reverse osmosis membrane is reduced.

[0032] The horizontal tube 8 and the fixed tube 7 communicate with the inside of the pipe rack 15. The inner ring of the bearing 11 is fixed to the fixed tube 7, and the outer ring of the bearing 11 is rotatably arranged. The reverse osmosis membrane sleeved outside the fixed tube 7 is rotated through the bearing 11.

[0033] Specifically, the cleaning liquid is conveyed into the fixed tube 7 and the horizontal tube 8 through the circulation pump 16 and sprayed out through the spray head 9 and the spray holes 10, so as to synchronously clean the inside and outside of the reverse osmosis membrane sleeved outside the fixed tube 7, improve the cleaning efficiency. The reverse osmosis membrane is positioned outside the fixed tube 7 by connecting the fastening bolt 13 to the front end of the fixed tube 7 to prevent it from detaching during cleaning.

[0034] Embodiment 2

[0035] Refer to Figure 5 and Figure 6 On the basis of Embodiment 1, it is further obtained that the rotating mechanism 5 includes three rotating rods 18 and a filter screen 19. The filter screen 19 is fixedly installed at a position near the bottom inside the cleaning tank 1. The three rotating rods 18 are movably installed inside the cleaning tank 1. Two rubber wheels 20 are fixedly installed on the outside of the rotating rods 18. Transmission discs 21 are fixedly installed at the rear ends of the two rotating rods 18 on both sides. Two transmission discs 21 are fixedly installed at the rear end of the rotating rod 18 in the middle. Transmission belts 22 are sleeved between the transmission discs 21 on both sides and the outside of the two transmission discs 21 in the middle respectively. A motor 23 is installed at the rear of one of the transmission discs 21.

[0036] The three rotating rods 18 are arranged to rotate synchronously. The diameter of the rubber wheel 20 is larger than that of the rotating rod 18. The rubber wheel 20 contacts the outside of the reverse osmosis membrane and rotates, reducing the friction on the outer wall of the reverse osmosis membrane due to its small size.

[0037] The filter screen 19 is located below the three rotating rods 18. The output shaft of the motor 23 is fixedly connected to the rotating rod 18 through the transmission disc 21. The filter screen 19 filters the dirt during cleaning. Through the connection of the transmission belt 22, the three rotating rods 18 rotate synchronously.

[0038] Specifically, when the lifting plate 2 descends and the reverse osmosis membrane follows to descend for cleaning, the rubber wheel 20 contacts the outside of the reverse osmosis membrane. Through the rotation of the rotating rod 18, the reverse osmosis membrane rotates, enabling uniform cleaning of the inner and outer walls of the reverse osmosis membrane.

[0039] In the actual operation process, the ultrafiltration reverse osmosis membrane is sleeved outside the fixed pipe 7. The lifting cylinder 3 drives the two lifting plates 2 to descend, thereby driving the reverse osmosis membrane to descend into the cleaning tank 1, and the reverse osmosis membrane is cleaned by the cleaning liquid in the cleaning tank 1;

[0040] When taking, placing, fixing and cleaning, the reverse osmosis membrane is sleeved outside the fixed pipe 7. The fastening bolt 13 is threadedly connected to the outer front end position of the fixed pipe 7, positioning the reverse osmosis membrane outside the fixed pipe 7, facilitating the placement and removal of the reverse osmosis membrane. The bearing 11 enables the reverse osmosis membrane to rotate and provides support. The rotation of the turntable 12 and the pressing plate 14 is used to reduce the friction at both ends of the reverse osmosis membrane. The lifting plate 2 drives the reverse osmosis membrane to descend into the cleaning tank 1 and soak in the cleaning liquid at a certain height. The cleaning liquid in the cleaning tank 1 is transported into the pipe rack 15 through the hose 17 by the circulating pump 16, and is respectively transported into the three horizontal pipes 8 and the three fixed pipes 7. The cleaning liquid is sprayed out through the nozzles 9 to clean the outer surface of the reverse osmosis membrane, and is sprayed out through the spray holes 10, causing the cleaning liquid to expand and overflow outward to clean the inside of the reverse osmosis membrane. The protective cover 6 prevents the cleaning liquid from splashing outward;

[0041] When performing uniform cleaning by transmission rotation, the lifting plate 2 drives the reverse osmosis membrane to descend, making the reverse osmosis membrane contact the corresponding two rubber wheels 20. While cleaning, the motor 23 is started, causing the two transmission discs 21 and the rotating rod 18 in the middle to rotate. The two rotating rods 18 on both sides are driven to rotate synchronously through the transmission belt 22, and the reverse osmosis membrane is driven to rotate by the rubber wheels 20, enabling the nozzles 9 and the spray holes 10 to uniformly clean the inner and outer walls of the reverse osmosis membrane.

[0042] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultrafiltration and reverse osmosis membrane cleaning device, comprising a cleaning tank (1) and two lifting plates (2). Two jacking cylinders (3) are fixedly installed on both sides of the cleaning tank (1). The top end of the telescopic rod of the jacking cylinder (3) is fixedly connected to the lifting plate (2). It is characterized in that: A cleaning mechanism (4) is installed between the two lifting plates (2), and a rotating mechanism (5) is installed near the bottom inside the cleaning pool (1); The cleaning mechanism (4) includes three protective covers (6), three fixed pipes (7) and three horizontal pipes (8). The three protective covers (6) are installed between the two lifting plates (2). The three horizontal pipes (8) are respectively fixedly installed on the tops of the three protective covers (6). A number of spray nozzles (9) are installed on the periphery of the horizontal pipe (8) and penetrate inside the protective cover (6). The three fixed pipes (7) are respectively fixedly installed on the bottoms of the three protective covers (6). A number of spray holes (10) are formed on the periphery of the fixed pipe (7). Four bearings (11) are installed on the outside of the fixed pipe (7). A turntable (12) is movably sleeved on the outside of the fixed pipe (7) near the rear end. A fastening bolt (13) is connected and installed on the outside of the fixed pipe (7) near the front end. A pressure plate (14) is movably installed at the rear of the fastening bolt (13).

2. The ultrafiltration and reverse osmosis membrane cleaning device according to claim 1, characterized in that: The rear ends of the three horizontal pipes (8) and the three fixed pipes (7) are fixedly connected to the same pipe rack (15). A circulating pump (16) is installed through the bottom near the rear of the cleaning pool (1). A hose (17) is connected between the water outlet of the circulating pump (16) and the bottom end of the pipe rack (15).

3. The ultrafiltration and reverse osmosis membrane cleaning device according to claim 1, characterized in that: The front view of the protective cover (6) is in a semi-circular ring shape, and the rear end of the fixed pipe (7) is fixed to the lifting plate (2) at the rear.

4. An ultrafiltration and reverse osmosis membrane cleaning device according to claim 1, characterized in that: Threads are provided on the periphery of the fixed pipe (7) near the front end. The fastening bolt (13) is sleeved on the outside of the fixed pipe (7) near the front end and is threadedly connected. The pressure plate (14) is located at the rear of the fastening bolt (13) and is rotatably arranged through a clamping shaft.

5. An ultrafiltration and reverse osmosis membrane cleaning device according to claim 2, characterized in that: The horizontal pipe (8) and the fixed pipe (7) communicate with the inside of the pipe rack (15). The inner ring of the bearing (11) is fixed to the fixed pipe (7), and the outer ring of the bearing (11) is rotatably arranged.

6. The ultrafiltration and reverse osmosis membrane cleaning device according to claim 1, characterized in that: The rotating mechanism (5) includes three rotating rods (18) and a filter screen (19). The filter screen (19) is fixedly installed at a position near the bottom inside the cleaning pool (1). The three rotating rods (18) are movably installed inside the cleaning pool (1). Two rubber wheels (20) are fixedly installed on the outside of the rotating rod (18). Transmission discs (21) are fixedly installed at the rear ends of the two rotating rods (18) on both sides. Two transmission discs (21) are fixedly installed at the rear end of the rotating rod (18) in the middle. Transmission belts (22) are sleeved between the transmission discs (21) on both sides and the two transmission discs (21) on the outside of the middle respectively. A motor (23) is installed at the rear of one of the transmission discs (21).

7. An ultrafiltration and reverse osmosis membrane cleaning device according to claim 6, characterized in that: The three rotating rods (18) rotate synchronously, and the diameter of the rubber wheel (20) is larger than the diameter of the rotating rod (18).

8. An ultrafiltration and reverse osmosis membrane cleaning device according to claim 6, characterized in that: The filter screen (19) is located below the three rotating rods (18), and the output shaft of the motor (23) is fixedly connected to the rotating rod (18) through the transmission disc (21).

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