A high-salinity wastewater reverse osmosis treatment device that can autonomously clean up crystallized salt

Abstract

The utility model discloses a high-salt wastewater reverse osmosis treatment device that can autonomously clean crystallized salt, belonging to the technical field of wastewater treatment, including a treatment tank, a filter cartridge, and a screw; the filter cartridge includes a pressure cylinder, a reverse osmosis filter cartridge, and a concentrated wastewater pipe; a movable plate is provided in the pressure cylinder, a flushing port is provided on the movable plate, and a connecting rod is provided on the movable plate; a reverse osmosis filter cartridge is provided with a reverse osmosis membrane; a lifting plate is provided in the screw sleeve, the connecting rod is hollow inside, and a water supply mechanism is provided on the connecting rod; a water inlet pipe and a water outlet pipe are provided on the side wall of the treatment tank, and a driving mechanism is provided on the bottom surface of the treatment tank. The utility model drives the reverse osmosis filter cartridge and the screw to rotate through a driving mechanism, so that the movable plate descends into the reverse osmosis filter cartridge, and water is supplied to the flushing port through a water supply mechanism, so that the reverse osmosis filter cartridge is flushed with flushing water while rotating, so as to clean the crystallized salt and prevent the crystallized salt from clogging the reverse osmosis membrane.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, and in particular to a high-salt wastewater reverse osmosis treatment device capable of autonomously cleaning crystallized salt. Background Art

[0002] High-salinity wastewater refers to wastewater with a total salt content (in terms of sodium chloride) exceeding 3.5%. It contains a large amount of ions and some difficult-to-degrade organic matter. If it is discharged directly without treatment, it will cause soil or water pollution. Therefore, how to properly treat high-salinity wastewater has gradually become an inevitable problem in the industrial production process.

[0003] Existing high-salinity wastewater is mostly filtered and treated by reverse osmosis membrane, which is an artificial semipermeable membrane with certain characteristics made by simulating biological semipermeable membrane. When the existing high-salinity wastewater reverse osmosis membrane concentrated water treatment device is used, due to the high salt content in the wastewater, more crystallized salt will adhere to the reverse osmosis membrane after a period of treatment, resulting in blockage of the reverse osmosis membrane, slow filtration speed, and poor treatment effect on wastewater. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a high-salt wastewater reverse osmosis treatment device which can autonomously clean up crystallized salt.

[0005] The technical solution of the utility model is: a high-salinity wastewater reverse osmosis treatment device capable of autonomously cleaning crystallized salt, comprising a treatment tank, a filter cartridge vertically arranged on the top surface of the treatment tank, and a screw rod vertically arranged on one side of the filter cartridge and rotatably connected to the treatment tank;

[0006] The filter cartridge comprises a pressurizing cartridge, a reverse osmosis filter cartridge and a concentrated wastewater pipe which are arranged in sequence from top to bottom and are interconnected; a movable plate is provided in the pressurizing cartridge for sliding and sealing up and down, a plurality of flushing ports for flushing the reverse osmosis filter cartridge are provided on the side wall of the movable plate, and a connecting rod is fixed on the movable plate;

[0007] The pressurizing cylinder is fixedly connected to the top surface of the treatment tank, a reverse osmosis membrane is arranged on the side wall of the reverse osmosis filter cartridge, and the reverse osmosis filter cartridge is rotatably connected to the pressurizing cylinder, the concentrated waste water pipe is fixedly connected to the reverse osmosis filter cartridge, and the lower end of the concentrated waste water pipe passes through the treatment tank and is rotatably connected to the treatment tank;

[0008] The upper end of the screw rod passes through the treatment tank and is threadedly sleeved with a lifting plate, the upper end of the connecting rod passes through the top surface of the treatment tank and is clamped with the lifting plate, the interior of the connecting rod is hollow, and the upper end of the connecting rod is provided with a water supply mechanism for supplying water to the flushing port, and the plurality of flushing ports are all connected to the interior of the connecting rod;

[0009] A water inlet pipe and a water outlet pipe are arranged on the side wall of the treatment tank, and the water inlet pipe is communicated with the side wall of the pressure cylinder; a driving mechanism for driving the concentrated wastewater pipe and the screw to rotate is arranged on the bottom surface of the treatment tank.

[0010] Description: The above equipment drives the reverse osmosis filter cartridge and the screw to rotate in the forward and reverse directions through the driving mechanism. The rotation of the reverse osmosis filter cartridge can accelerate the flow of wastewater under the action of centrifugal force and improve the filtration speed. The rotation of the screw can drive the lifting plate to move up and down, so that the movable plate moves up and down in the pressurized cylinder, so that the filtration speed of the wastewater can be further improved under the action of pressure. When crystallized salt appears in the reverse osmosis filter cartridge, the lifting plate drives the movable plate to descend into the reverse osmosis filter cartridge, and water is supplied to the flushing port through the water supply mechanism, so that the reverse osmosis filter cartridge is flushed by flushing water while rotating to clean the crystallized salt and prevent the crystallized salt from clogging the reverse osmosis membrane.

[0011] Furthermore, the driving mechanism includes a first gear sleeved on the lower end of the concentrated wastewater pipe, a motor arranged on the bottom surface of the treatment tank, and a second gear sleeved on the output shaft of the motor and meshing with the first gear; the lower end of the screw rod passes through the treatment tank and is sleeved with a third gear for meshing with the first gear.

[0012] Description: The motor drives the second gear to rotate, and the second gear drives the first gear to rotate, so that the first gear drives the concentrated waste water pipe to rotate, and at the same time, the first gear drives the third gear to rotate, so that the screw rod rotates.

[0013] Furthermore, the inner diameter of the reverse osmosis filter cartridge is larger than the inner diameter of the pressurizing cartridge, and the water outlet pipe is arranged on the lower side wall of the treatment tank.

[0014] Note: Limiting the inner diameter of the reverse osmosis filter cartridge can ensure that the movable plate can enter the reverse osmosis filter cartridge, thereby preventing the reverse osmosis filter cartridge from being damaged when the movable plate moves up and down.

[0015] Furthermore, the water supply mechanism comprises a water storage cylinder vertically arranged in the processing tank and located on one side of the screw rod, and a piston slidingly and sealingly arranged in the water storage cylinder;

[0016] The lower end of the water storage cylinder is provided with a water pumping pipe, and a one-way valve is provided in the water pumping pipe. The upper end of the water storage cylinder is fixedly connected to the processing tank. A lifting rod is provided on the piston. The upper end of the lifting rod passes through the processing tank and is fixedly connected to the lifting plate. The lifting rod is hollow inside, and a water inlet hole connected to the inside of the lifting rod is provided on the piston. A one-way valve is provided in the water inlet hole.

[0017] The upper end of the lifting rod is provided with a water delivery pipeline for communicating with the inside of the connecting rod, and the middle side wall of the water storage cylinder is provided with a drainage hole for limiting the water storage height therein.

[0018] Note: When the lifting plate moves up and down, it will drive the piston to move up and down, and draw part of the filtered water into the water storage cylinder. When the crystallized salt needs to be cleaned, the piston continues to move downward, and the water in the water storage cylinder enters the connecting rod through the water pipe under pressure and is released through the flushing port. There is no need to set up an additional water pump, and the flushing water uses filtered wastewater, so there is no need for additional water supply, which saves water resources.

[0019] Furthermore, the connection between the connecting rod and the lifting plate is a rotation-limited connection, and a spiral blade is sleeved on the upper side wall of the connecting rod. A blocking rod is laterally provided on the top surface of the treatment tank for contacting and cooperating with the spiral blade to rotate the connecting rod, and the connecting rod is rotatably connected to the water supply pipeline.

[0020] Note: After the connecting rod descends until the spiral blade contacts the blocking rod, as the connecting rod continues to descend, the spiral blade will rotate under the resistance of the blocking rod, causing the connecting rod to rotate, allowing the movable plate to rotate in the opposite direction of the reverse osmosis filter cartridge, further expanding the flushing range and improving the flushing effect.

[0021] Furthermore, the blocking rod is fixedly connected to a connecting plate vertically arranged on the top surface of the processing tank, and a contact wheel for contacting the spiral blade is rotatably arranged on the blocking rod.

[0022] Note: The contact wheel contacts the spiral blade, which can reduce the wear of the spiral blade and the blocking rod and increase the service life of the equipment.

[0023] The beneficial effects of the utility model are:

[0024] (1) The utility model drives the reverse osmosis filter cartridge and the screw to rotate in the forward and reverse directions through a driving mechanism. The rotation of the reverse osmosis filter cartridge can accelerate the flow of wastewater under the action of centrifugal force and improve the filtration speed. The rotation of the screw can drive the lifting plate to move up and down, so that the movable plate moves up and down in the pressurized cylinder, so that the filtration speed of the wastewater is further improved under the action of pressure. When crystallized salt appears in the reverse osmosis filter cartridge, the lifting plate drives the movable plate to descend into the reverse osmosis filter cartridge, and water is supplied to the flushing port through the water supply mechanism, so that the reverse osmosis filter cartridge is flushed by flushing water while rotating, so as to clean the crystallized salt and prevent the crystallized salt from clogging the reverse osmosis membrane.

[0025] (2) When the lifting plate of the utility model is raised and lowered, the piston is driven to move up and down, and part of the filtered water is pumped into the water storage cylinder. When the crystallized salt needs to be cleaned, the piston continues to move downward, and the water in the water storage cylinder enters the connecting rod through the water pipe under pressure and is released through the flushing port. There is no need to set up an additional water pump, and the flushing water uses filtered wastewater, so there is no need for additional water supply, which saves water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0027] Figure 2 This is a transverse cross-sectional view of Embodiment 1 of the present utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the movable plate of Embodiment 1 of the utility model;

[0029] Figure 4 This is a schematic diagram of the overall structure of Embodiment 2 of the present utility model;

[0030] Figure 5 yes Figure 4 A magnified image of point A;

[0031] Among them, 1-treatment tank, 11-screw rod, 111-third gear, 12-water inlet pipe, 13-water outlet pipe, 14-lifting plate, 15-motor, 151-second gear, 16-blocking rod, 161-contact wheel, 17-water storage cylinder, 171-piston, 172-water pumping pipe, 18-lifting rod, 19-water pipeline, 2-filter cylinder, 21-pressurizing cylinder, 22-reverse osmosis filter cylinder, 23-concentrated wastewater pipe, 231-first gear, 24-movable plate, 241-flushing port, 25-connecting rod, 251-spiral blade. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below in conjunction with specific implementation methods to better reflect the advantages of the present invention.

[0033] Embodiment 1:

[0034] like Figure 1 As shown, a high-salinity wastewater reverse osmosis treatment device capable of autonomously cleaning crystallized salt comprises a treatment tank 1, a filter cartridge 2 vertically arranged on the top surface of the treatment tank 1, and a screw rod 11 vertically arranged on the right side of the filter cartridge 2 and rotatably sealed and connected to the treatment tank 1;

[0035] like Figure 2 As shown, the filter cartridge 2 includes a pressurizing cartridge 21, a reverse osmosis filter cartridge 22 and a concentrated wastewater pipe 23 which are arranged in sequence from top to bottom and are interconnected; a movable plate 24 is provided in the pressurizing cartridge 21 for sliding and sealing up and down, as shown in FIG. Figure 3 As shown, six flushing ports 241 for flushing the reverse osmosis filter cartridge 22 are provided on the side wall of the movable plate 24, and a connecting rod 25 is fixed on the movable plate 24;

[0036] The pressurizing cylinder 21 is fixedly connected to the inner top surface of the treatment tank 1, a reverse osmosis membrane is provided on the side wall of the reverse osmosis filter cartridge 22, the reverse osmosis membrane adopts the existing technology product, and the reverse osmosis filter cartridge 22 is rotatably connected to the annular groove provided on the pressurizing cylinder 21, the concentrated waste water pipe 23 is fixedly connected to the reverse osmosis filter cartridge 22, and the lower end of the concentrated waste water pipe 23 passes through the treatment tank 1 and is rotatably sealed and connected to the treatment tank 1;

[0037] The upper end of the screw rod 11 passes through the treatment tank 1 and is threadedly sleeved with a lifting plate 14. The upper end of the connecting rod 25 passes through the top surface of the treatment tank 1 and is clamped with the lifting plate 14 through a clamping groove provided on the connecting rod 25. The interior of the connecting rod 25 is hollow, and a water supply mechanism for supplying water to the flushing port 241 is provided at the upper end of the connecting rod 25. The six flushing ports 241 are all connected to the interior of the connecting rod 25.

[0038] The side wall of the treatment tank 1 is provided with a water inlet pipe 12 and a water outlet pipe 13, and the water inlet pipe 12 is connected to the side wall of the pressure cylinder 21; the bottom surface of the treatment tank 1 is provided with a driving mechanism for driving the concentrated wastewater pipe 23 and the screw 11 to rotate;

[0039] The driving mechanism includes a first gear 231 sleeved on the lower end of the concentrated wastewater pipe 23, a motor 15 arranged on the bottom surface of the treatment tank 1, and a second gear 151 sleeved on the output shaft of the motor 15 and meshing with the first gear 231. The motor 15 adopts a prior art product; the lower end of the screw rod 11 passes through the treatment tank 1 and is sleeved with a third gear 111 for meshing with the first gear 231;

[0040] The inner diameter of the reverse osmosis filter cartridge 22 is 2 cm larger than the inner diameter of the pressurizing cartridge 21 , and the water outlet pipe 13 is arranged on the lower side wall of the treatment tank 1 ;

[0041] The water supply mechanism includes a water storage cylinder 17 vertically arranged in the treatment tank 1 and located on the right side of the screw rod 11, and a piston 171 slidingly sealed and arranged in the water storage cylinder 17;

[0042] A water pumping pipe 172 is provided at the lower end of the water storage cylinder 17, and a one-way valve is provided in the water pumping pipe 172. The one-way valve adopts the existing technology product, and the one-way valve is connected from the outside to the water storage cylinder 17 in one direction. The upper end of the water storage cylinder 17 is fixedly connected to the processing tank 1, and a lifting rod 18 is provided on the piston 171. The upper end of the lifting rod 18 passes through the processing tank 1 and is fixedly connected to the lifting plate 14. The lifting rod 18 is hollow inside, and a water inlet hole connected to the inside of the lifting rod 18 is provided on the piston 171. A one-way valve is provided in the water inlet hole. The one-way valve adopts the existing technology product, and the one-way valve is connected from the water storage cylinder 17 to the lifting rod 18 in one direction.

[0043] A water delivery pipe 19 for communicating with the inside of the connecting rod 25 is provided at the upper end of the lifting rod 18, and a drainage hole for limiting the water storage height therein is provided on the middle side wall of the water storage cylinder 17.

[0044] The working principle of the above-mentioned equipment is as follows: when treating wastewater, wastewater enters the reverse osmosis filter cartridge 22 through the water inlet pipe 12, the motor 15 is started, the motor 15 drives the first gear 231 to rotate through the second gear 151, the first gear 231 drives the third gear 111 to rotate, so that the reverse osmosis filter cartridge 22 and the screw rod 11 reciprocate forward and reverse, so that the lifting plate 14 drives the movable plate 24 to reciprocate in the pressurizing cylinder 21. The reciprocating lifting of the movable plate 24 will squeeze the wastewater and increase the wastewater filtering speed;

[0045] The filtered wastewater flows from the filter cartridge 2 into the treatment tank 1 and is discharged from the water outlet pipe 13. When the screw rod 11 reciprocates forward and reversely, the lifting plate 14 drives the piston 171 to move up and down. When the piston 171 moves up and down below the drain hole, a part of the filtered wastewater is pumped into the water storage cylinder 17 as flushing water. After the wastewater treatment is completed, the valve on the concentrated wastewater pipe 23 is opened to discharge the concentrated wastewater that cannot be filtered.

[0046] When cleaning the crystallized salt, the screw 11 drives the movable plate 24 to move downward, so that the movable plate 24 enters the reverse osmosis filter cartridge 22. At the same time, the motor 15 drives the reverse osmosis filter cartridge 22 to rotate, and the piston 171 moves downward with the movable plate 24. The flushing water in the water storage cylinder 17 enters the lifting rod 18 under pressure, and enters the connecting rod 25 through the water pipe 19, so that the flushing water is released through the flushing port to flush the reverse osmosis filter cartridge 22.

[0047] Embodiment 2:

[0048] like Figure 4 As shown, the connecting rod 25 is engaged with the lifting plate 14 in rotation and limiting manner through the annular groove provided on its side wall, and a spiral blade 251 is sleeved on the upper side wall of the connecting rod 25, and a blocking rod 16 is transversely provided on the top surface of the treatment tank 1 for contacting and cooperating with the spiral blade 251 to rotate the connecting rod 25, and the connecting rod 25 is rotatably connected to the water delivery pipe 19;

[0049] like Figure 5 As shown, the blocking rod 16 is fixedly connected to a connecting plate vertically provided on the top surface of the processing tank 1 , and a contact wheel 161 for contacting the spiral blade 251 is rotatably provided on the blocking rod 16 .

[0050] The working principle of the above-mentioned connecting rod 25 is as follows: when the movable plate 24 enters the reverse osmosis filter cartridge 22, the connecting rod 25 descends until the spiral blade 251 contacts the contact wheel 161. Under the action of friction resistance, the spiral blade 251 will drive the connecting rod 25 to rotate, causing the movable plate 24 to rotate in the opposite direction to the reverse osmosis filter cartridge 22.

Claims

1. A high-salinity wastewater reverse osmosis treatment equipment that can autonomously clean up crystallized salt, characterized in that: It comprises a processing tank (1), a filter cartridge (2) vertically arranged on the top surface of the processing tank (1), and a screw rod (11) vertically arranged on one side of the filter cartridge (2) and rotatably connected to the processing tank (1); The filter cartridge (2) comprises a pressurizing cartridge (21), a reverse osmosis filter cartridge (22) and a concentrated wastewater pipe (23) which are arranged in sequence from top to bottom and are interconnected; a movable plate (24) is provided in the pressurizing cartridge (21) in a sliding and sealing manner up and down, a plurality of flushing ports (241) for flushing the reverse osmosis filter cartridge (22) are provided on the side wall of the movable plate (24), and a connecting rod (25) is fixedly provided on the movable plate (24); The pressurizing cylinder (21) is fixedly connected to the inner top surface of the treatment tank (1); a reverse osmosis membrane is provided on the side wall of the reverse osmosis filter cartridge (22); the reverse osmosis filter cartridge (22) is rotatably connected to the pressurizing cylinder (21); the concentrated waste water pipe (23) is fixedly connected to the reverse osmosis filter cartridge (22); and the lower end of the concentrated waste water pipe (23) passes through the treatment tank (1) and is rotatably connected to the treatment tank (1); The upper end of the screw rod (11) passes through the treatment tank (1) and is threadedly sleeved with a lifting plate (14); the upper end of the connecting rod (25) passes through the top surface of the treatment tank (1) and is clamped with the lifting plate (14); the interior of the connecting rod (25) is hollow, and the upper end of the connecting rod (25) is provided with a water supply mechanism for supplying water to the flushing port (241); and the plurality of flushing ports (241) are all in communication with the interior of the connecting rod (25); A water inlet pipe (12) and a water outlet pipe (13) are provided on the side wall of the treatment tank (1), and the water inlet pipe (12) is connected to the side wall of the pressurizing cylinder (21); a driving mechanism for driving the concentrated wastewater pipe (23) and the screw rod (11) to rotate is provided on the bottom surface of the treatment tank (1).

2. The high-salinity wastewater reverse osmosis treatment equipment capable of autonomously cleaning crystallized salt according to claim 1, characterized in that: The driving mechanism comprises a first gear (231) sleeved on the lower end of the concentrated wastewater pipe (23), a motor (15) arranged on the bottom surface of the treatment tank (1), and a second gear (151) sleeved on the output shaft of the motor (15) and meshing with the first gear (231); the lower end of the screw rod (11) passes through the treatment tank (1) and is sleeved with a third gear (111) for meshing with the first gear (231).

3. The high-salinity wastewater reverse osmosis treatment equipment capable of autonomously cleaning crystallized salt according to claim 1, characterized in that: The inner diameter of the reverse osmosis filter cartridge (22) is greater than the inner diameter of the pressurizing cartridge (21), and the water outlet pipe (13) is arranged on the lower side wall of the treatment tank (1).

4. The high-salinity wastewater reverse osmosis treatment equipment capable of autonomously cleaning crystallized salt according to claim 1, characterized in that: The water supply mechanism comprises a water storage cylinder (17) vertically arranged in the processing tank (1) and located on one side of the screw rod (11), and a piston (171) slidingly sealed and arranged in the water storage cylinder (17); The lower end of the water storage cylinder (17) is provided with a water pumping pipe (172), and a one-way valve is provided in the water pumping pipe (172); the upper end of the water storage cylinder (17) is fixedly connected to the processing tank (1); a lifting rod (18) is provided on the piston (171); the upper end of the lifting rod (18) passes through the processing tank (1) and is fixedly connected to the lifting plate (14); the lifting rod (18) is hollow inside, and the piston (171) is provided with a water inlet hole connected to the inside of the lifting rod (18); and the one-way valve is provided in the water inlet hole; The upper end of the lifting rod (18) is provided with a water delivery pipe (19) for communicating with the inside of the connecting rod (25), and the middle side wall of the water storage cylinder (17) is provided with a drainage hole for limiting the water storage height therein.

5. The high-salinity wastewater reverse osmosis treatment equipment capable of autonomously cleaning crystallized salt according to claim 4, characterized in that: The connection between the connecting rod (25) and the lifting plate (14) is a rotation-limited connection, and a spiral blade (251) is sleeved on the upper side wall of the connecting rod (25). A blocking rod (16) is transversely provided on the top surface of the treatment tank (1) for contacting and cooperating with the spiral blade (251) to rotate the connecting rod (25), and the connecting rod (25) is rotationally connected to the water delivery pipe (19).

6. The high-salinity wastewater reverse osmosis treatment equipment capable of autonomously cleaning crystallized salt according to claim 5, characterized in that: The blocking rod (16) is fixedly connected to a connecting plate vertically arranged on the top surface of the processing tank (1), and a contact wheel (161) for contacting the spiral blade (251) is rotatably arranged on the blocking rod (16).

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