Film gel forming equipment based on gel tank phase separation technology

Abstract

The utility model discloses thin film gel forming equipment based on a gel tank phase separation technology, belongs to the technical field of nanofiltration membrane elements, and aims to solve the problem that the thin film gel forming equipment is difficult to detect whether a solution in the thin film gel forming equipment reaches the standard or not in a layering manner. By installing the sampling box, layered sampling can be performed on a mixed solution of polysulfone and dimethylformamide, whether the concentrations of solutions in different layers are similar or not can be conveniently detected, meanwhile, a hand wheel is rotated to drive a rotating rod to rotate, and under the action of meshing connection, a threaded rod can be driven to start to rotate; meanwhile, under the action of connection of a second belt pulley and threaded connection, a sealing gasket is further driven to move in a storage tank, so that a blocking effect is effectively achieved, the phenomenon that solutions at different layers are mixed in the process of drawing out the sampling box is prevented, and through a stirring assembly, stirring of the stirring assembly can be more efficient; and the solution is mixed more uniformly.

Description

Technical Field

[0001] The utility model relates to the technical field of nanofiltration membrane elements, and particularly relates to a thin film gel forming device based on gel tank phase separation technology. Background Art

[0002] Nanofiltration technology has been separated from reverse osmosis technology and has become an independent separation technology between ultrafiltration and reverse osmosis technologies. It has been widely used in many fields such as seawater desalination, ultrapure water production, food industry, environmental protection, etc., and has become an important branch of membrane separation technology.

[0003] At present, the application fields of nanofiltration membranes in China mainly focus on industrial separation, sewage and wastewater treatment, reclaimed water treatment, seawater desalination and other fields. As an advanced and competitive industrial separation and water treatment technology at present, nanofiltration membrane technology is very compatible with the concept of building an energy-saving and emission-reduction society, promoting clean production, developing circular economy and realizing sustainable development in China, and has a very broad application space and development prospect. During the preparation and production of nanofiltration membranes, a thin film forming device is needed to attach a layer of polysulfone resin on its surface, which is beneficial to the smooth progress of subsequent processing and production work.

[0004] However, for the existing thin film forming device for producing nanofiltration membranes, a certain amount of polysulfone and dimethylformamide (DMF) are mixed in a gel tank, and non-woven fabrics are soaked in it. Then, the phase separation of the membrane is completed by using water and DMF, and the polysulfone resin remains on the surface of the non-woven fabric to form a thin film. However, it is difficult to detect whether the DMF is evenly mixed and whether the concentration of each layer of mixing is equal. If the mixing is uneven, it will affect the quality of the subsequent film forming work. At the same time, during the process of technical phase separation, water needs to be fully fused and contacted with DMF to complete the function of highly separated film forming. Therefore, we need to design a thin film gel forming device based on gel tank phase separation technology to solve the above-mentioned problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a thin film gel forming device based on gel tank phase separation technology to solve the problem that it is difficult to detect whether the solution in the thin film gel forming device meets the standard layer by layer as mentioned in the above background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thin film gel forming device based on gel tank phase separation technology, comprising a base, the top of the base is connected to a gel forming pool, and the top of the gel forming pool is connected to a gel forming box cover, the top of the gel forming box cover is connected to an electric push rod, and the bottom end of the electric push rod is connected to a mounting plate, the inside of the mounting plate is connected to a second motor, the bottom end of the mounting plate is rotatably connected to a rotating shaft, and the bottom ends of the mounting plates on both sides of the rotating shaft are rotatably connected to a first stirring rod, the outer side of the first stirring rod is connected to a stirring blade, the first stirring rod is connected to the rotating shaft through a first pulley, and the two ends of the gel forming pool are connected to each other. The sides are provided with cloth outlet grooves, the top ends of the bases on both sides of the gel molding pool are connected to support frames, and the inner sides of the support frames are rotatably connected to winding rollers, the outer sides of the winding rollers are wound with non-woven fabrics, and the non-woven fabrics penetrate the interior of the gel molding pool and pass out from the cloth outlet grooves, the bottom end of the gel molding box cover on one side of the mounting plate is connected with a swing seat, and a swing mechanism is arranged inside the swing seat, the interior of the gel molding pool is connected with a conveying frame, and the inner side of the conveying frame is connected with a conveying roller, the non-woven fabric is wound around the outer sides of the conveying rollers, built-in grooves are arranged on both sides of the interior of the gel molding pool, and the interiors of the built-in grooves are connected with heating plates, and one end of the support frame is connected with a first motor.

[0007] As a further description of the above technical solution, the swing mechanism includes a third motor, a swing frame, a connecting shaft, a worm gear, a worm, a through pipe and a nozzle;

[0008] The third motor is arranged on one side of the swing seat, the output end of the swing seat is connected to a worm, the internal rotation of the swing seat is connected to a connecting shaft, and the outer side of the connecting shaft is connected to a worm wheel, and the worm wheel is meshingly connected to the worm, the outer sides of the connecting shaft at the front and rear ends of the worm wheel are connected to swing frames, and the bottom end of the swing frame is connected to a through pipe, and the bottom end of the through pipe is connected to a nozzle, and six groups of them are arranged.

[0009] As a further description of the above technical solution, a sampling box is movably connected to one side of the interior of the gel forming pool, and a handwheel is connected to the top of the sampling box, a storage groove is provided inside the sampling box, a sampling mechanism is provided inside the sampling box, and the sampling mechanism includes a receiving groove, which is provided inside the sampling box, the interior of the receiving groove is rotatably connected with a threaded sleeve, and the outer side of the threaded sleeve is sleeved with a threaded sleeve, the top of the threaded sleeve is connected to a sealing gasket, which moves inside the storage groove, the threaded rods are connected to each other by a second pulley, the outer side of the rotating rod is connected to a second bevel gear, the outer side of the threaded rod is connected to a first bevel gear, and the first bevel gear is meshingly connected to the second bevel gear.

[0010] As a further description of the above technical solution, the gasket moves inside the storage tank, and its size matches that of the storage tank.

[0011] As a further description of the above technical solution, the nozzles are all shaped like trumpets and are arranged at equal intervals at the bottom of the through pipe.

[0012] As a further description of the above technical solution, two sets of stirring blades are provided and are cross-distributed between the two sets.

[0013] Adopting the technical solution provided by the present utility model, compared with the prior art, it has the following beneficial effects:

[0014] By installing the sampling box, the mixed polysulfone and dimethylformamide mixed solution can be sampled in layers, which is convenient for detecting whether the solution concentrations at different layers are similar. At the same time, by rotating the handwheel to drive the rotating rod to rotate and under the action of meshing connection, the threaded rod can be driven to start rotating. Meanwhile, under the connection of the second pulley and the threaded connection, the gasket is further driven to move inside the storage tank, thereby effectively playing a blocking role and preventing the phenomenon of confusion of solutions at different layers during the process of withdrawing the sampling box. Through the stirring assembly, starting the second motor to drive the rotating shaft to rotate and under the mutual cooperation of the first pulley, the two first stirring rods can be driven to rotate towards each other. At the same time, by arranging the stirring blades in a cross-distribution, the stirring assembly can stir more efficiently and make the solution mix more evenly;

[0015] By starting the third motor, driving the worm to rotate and under the action of meshing connection, while the worm wheel rotates, the inner connecting shaft is further driven to rotate. At the same time, the outer swing frame and the bottom through pipe are also driven to swing, so that the water resource diffuses from the nozzle and evenly falls on the non-woven fabric adhered with DMF. Then, by using water and DMF to complete the phase separation of the membrane, the polysulfone resin remains on the surface of the non-woven fabric to form a film, thus completing the effect of phase separation and film formation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic front view structure diagram of the whole of the present utility model;

[0018] Figure 2 It is a three-dimensional structure diagram of the bottom of the gel forming box cover of the present utility model;

[0019] Figure 3 This is the three-dimensional structure schematic diagram of the swing mechanism combination of the present utility model;

[0020] Figure 4 This is the front sectional structure schematic diagram of the present utility model;

[0021] Figure 5 This is the three-dimensional structure schematic diagram of the sampling box combination of the present utility model.

[0022] Explanation of the reference numerals in the figure: 1. Sampling box; 2. Handwheel; 3. Gel forming box cover; 4. Gel forming pool; 5. Non-woven fabric; 6. Support frame; 7. Base; 8. First motor; 9. Gel forming groove; 10. Rewinding roller; 11. Electric push rod; 12. Mounting plate; 13. Second motor; 14. First stirring rod; 15. Stirring blade; 16. First pulley; 17. Rotating shaft; 18. Sprayer; 19. Connecting pipe; 20. Swing seat; 21. Third motor; 22. Swing frame; 23. Connecting shaft; 24. Worm gear; 25. Worm; 26. Conveyor frame; 27. Conveyor roller; 28. Heating sheet; 29. Built-in groove; 30. Storage tank; 31. Cloth outlet groove; 32. Sampling mechanism; 3201. Accommodating groove; 3202. Second pulley; 3203. Threaded sleeve; 3204. Sealing gasket; 3205. First bevel gear; 3206. Second bevel gear; 3207. Rotating rod; 3208. Threaded rod. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described 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 efforts shall fall within the protection scope of the present utility model.

[0024] The present utility model will be further described below in conjunction with the embodiments.

[0025] Embodiment 1:

[0026] Combined with Figure 1 , Figure 2 , Figure 4 and Figure 5, including a base 7, a gel forming pool 4 is connected to the top end of the base 7, a gel forming box cover 3 is connected to the top end of the gel forming pool 4, an electric push rod 11 is connected to the top end of the gel forming box cover 3, the bottom end of the electric push rod 11 is connected to a mounting plate 12, a second motor 13 is connected inside the mounting plate 12, the bottom end of the mounting plate 12 is rotatably connected to a rotating shaft 17, and the bottom ends of the mounting plate 12 on both sides of the rotating shaft 17 are rotatably connected to first stirring rods 14, stirring blades 15 are connected to the outer sides of the first stirring rods 14, the first stirring rods 14 and the rotating shaft 17 are connected by a first belt pulley 16, cloth outlet grooves 31 are arranged on both sides of the gel forming pool 4, support frames 6 are connected to the top ends of the base 7 on both sides of the gel forming pool 4, winding rollers 10 are rotatably connected to the inner sides of the support frames 6, non-woven fabrics 5 are wound around the outer sides of the winding rollers 10, the non-woven fabrics 5 pass through the inside of the gel forming pool 4 and pass out from the cloth outlet grooves 31, a swing seat 20 is connected to the bottom end of the gel forming box cover 3 on one side of the mounting plate 12, and a swing mechanism is arranged inside the swing seat 20, conveying frames 26 are connected to the inside of the gel forming pool 4, conveying rollers 27 are connected to the inner sides of the conveying frames 26, the non-woven fabrics 5 are wound around the outer sides of the conveying rollers 27, built-in grooves 29 are arranged on both sides inside the gel forming pool 4, heating sheets 28 are connected to the inside of the built-in grooves 29, a first motor 8 is connected to one end of the support frame 6, there are two groups of stirring blades 15, and they are cross-distributed between the two groups.

[0027] In this embodiment, the mixed solution enters the inside of the storage tank 30. At this time, turning the handwheel 2 drives the rotating rod 3207 and the outer second bevel gear 3206 to rotate. Under the action of meshing connection, the first bevel gear 3205 further drives the inner threaded rod 3208 to rotate. Under the connection of the second belt pulley 3202, the three threaded rods 3208 can be synchronously driven to rotate. At this time, under the action of threaded connection, the threaded sleeve 3203 further drives the outer sealing gasket 3204 to move inside the storage tank 30 to block the notch of the storage tank 30, thus forming a blocked phenomenon, so as to prevent the sampling box 1 from being confused when it is taken out for detection.

[0028] Embodiment Two:

[0029] Combined with Figure 1 、 Figure 2 and Figure 3, the swing mechanism includes a third motor 21, a swing frame 22, a connecting shaft 23, a worm gear 24, a worm 25, a through pipe 19 and a nozzle 18; the third motor 21 is arranged on one side of the swing seat 20, the output end of the swing seat 20 is connected with the worm 25, the inside of the swing seat 20 is rotatably connected with the connecting shaft 23, and the outside of the connecting shaft 23 is connected with the worm gear 24, and the worm gear 24 is meshed with the worm 25. Swing frames 22 are connected to the outside of the connecting shaft 23 at both the front and rear ends of the worm gear 24, and a through pipe 19 is connected to the bottom end of the swing frame 22. Six groups of nozzles 18 are arranged at the bottom end of the through pipe 19. On one side inside the gel forming tank 4, a sampling box 1 is movably connected, and a hand wheel 2 is connected to the top end of the sampling box 1. Storage grooves 30 are arranged inside the sampling box 1, and a sampling mechanism 32 is arranged inside the sampling box 1. The sampling mechanism 32 includes an accommodating groove 3201 arranged inside the sampling box 1. Threaded sleeves 3203 are rotatably connected to the inside of the accommodating groove 3201, and threaded sleeves 3203 are sleeved on the outside of the threaded sleeves 3203. Sealing gaskets 3204 are connected to the top ends of the threaded sleeves 3203 and are movable inside the storage groove 30. The threaded rods 3208 are connected to each other through second pulley wheels 3202. A second bevel gear 3206 is connected to the outside of the rotating rod 3207, and a first bevel gear 3205 is connected to the outside of the threaded rod 3208, and the first bevel gear 3205 is meshed with the second bevel gear 3206. The sealing gaskets 3204 move inside the storage groove 30, and their sizes match the storage groove 30. The shapes of the nozzles 18 are all arranged in a horn shape and are arranged at equal intervals at the bottom end of the through pipe 19.

[0030] In this embodiment, when the third motor 21 is started, it drives the worm 25 to rotate. Under the action of meshing connection, while the worm gear 24 rotates, it further drives the inner connecting shaft 23 to rotate. At the same time, it also drives the outer swing frame 22 and the bottom through pipe 19 to swing, so that water resources diffuse from the nozzle 18 and evenly fall on the non-woven fabric 5 adhered with DMF.

[0031] Working principle: First, a certain amount of polysulfone and dimethylformamide mixed solution is mixed and poured into the gel forming tank 9. The electric push rod 11 is started to drive the stirring assembly to descend into the gel forming tank 9 to stir the mixed solution inside the gel forming tank 9. At this time, the mixed solution at different levels enters the storage groove 30 inside. The hand wheel 2 is rotated to drive the rotating rod 3207 to rotate. Under the action of meshing connection, the threaded rod 3208 can be driven to start rotating. At the same time, under the connection of the second pulley wheel 3202 and the action of threaded connection, the sealing gasket 3204 is further driven to move inside the storage groove 30, thus effectively playing a blocking role to prevent the phenomenon that the solutions at different levels are confused when the sampling box 1 is drawn out.

[0032] After detecting that the mixed solution inside the gel forming tank 9 meets the standards, at this time, start the support frame 6 to drive the non-woven fabric 5 to start transmitting under the rolling of the winding roller 10, so that the non-woven fabric 5 enters the inside of the gel forming tank 9 for soaking, making its surface adhere to DMF. At this time, start the third motor 21 to drive the worm 25 to rotate. Under the action of meshing connection, while the worm wheel 24 rotates, it further drives the inner connecting shaft 23 to rotate. At the same time, it also drives the outer swing frame 22 and the bottom through pipe 19 to be in a swinging state, so that the water resource diffuses from the nozzle 18 and evenly falls on the non-woven fabric 5 adhering to DMF. Then, use water and DMF to complete the phase separation of the membrane, and the polysulfone resin remains on the surface of the non-woven fabric 5 to form a film.

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0034] 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 these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thin film gel forming device based on gel tank phase separation technology, comprising a base (7), characterized in that: The top of the base (7) is connected to a gel forming pool (4), and the top of the gel forming pool (4) is connected to a gel forming box cover (3), the top of the gel forming box cover (3) is connected to an electric push rod (11), and the bottom of the electric push rod (11) is connected to a mounting plate (12), the inside of the mounting plate (12) is connected to a second motor (13), the bottom of the mounting plate (12) is rotatably connected to a rotating shaft (17), and the bottom ends of the mounting plates (12) on both sides of the rotating shaft (17) are rotatably connected to first stirring rods (14), the outer sides of the first stirring rods (14) are connected to stirring blades (15), and the first stirring rods (14) and the rotating shaft (17) are connected via a first pulley (16), cloth outlet grooves (31) are provided on both sides of the gel forming pool (4), and the tops of the base (7) on both sides of the gel forming pool (4) are connected to the bottom ends of the mounting plates (12) on both sides of the rotating shaft (17). The ends are connected to support frames (6), and the inner sides of the support frames (6) are rotatably connected to winding rollers (10), the outer sides of the winding rollers (10) are wound with non-woven fabrics (5), and the non-woven fabrics (5) pass through the interior of the gel forming pool (4) and pass out from the cloth outlet groove (31), the bottom end of the gel forming box cover (3) on one side of the mounting plate (12) is connected to a swing seat (20), and a swing mechanism is arranged inside the swing seat (20), the interior of the gel forming pool (4) is connected to a conveying frame (26), and the inner side of the conveying frame (26) is connected to a conveying roller (27), the non-woven fabrics (5) are wound around the outer sides of the conveying rollers (27), both sides of the interior of the gel forming pool (4) are provided with built-in grooves (29), and the interiors of the built-in grooves (29) are connected to heating plates (28), and one end of the support frame (6) is connected to a first motor (8).

2. The thin film gel forming device based on gel tank phase separation technology according to claim 1, characterized in that: The swing mechanism comprises a third motor (21), a swing frame (22), a connecting shaft (23), a worm gear (24), a worm (25), a through pipe (19) and a nozzle (18); A third motor (21) is arranged on one side of the swing seat (20); the output end of the swing seat (20) is connected to a worm (25); the inside of the swing seat (20) is rotatably connected to a connecting shaft (23); the outer side of the connecting shaft (23) is connected to a worm wheel (24); the worm wheel (24) is meshingly connected to the worm (25); the outer sides of the connecting shaft (23) at the front and rear ends of the worm wheel (24) are both connected to a swing frame (22); the bottom end of the swing frame (22) is connected to a through pipe (19); the bottom end of the through pipe (19) is connected to a nozzle (18); six groups of the third motor (21) are arranged.

3. The thin film gel forming device based on gel tank phase separation technology according to claim 2, characterized in that: A sampling box (1) is movably connected to one side of the interior of the gel forming pool (4), and a hand wheel (2) is connected to the top of the sampling box (1). A storage tank (30) is provided inside the sampling box (1). A sampling mechanism (32) is provided inside the sampling box (1), and the sampling mechanism (32) includes a receiving tank (3201) which is provided inside the sampling box (1). A threaded sleeve (3203) is rotatably connected to the interior of the receiving tank (3201), and the outer side of the threaded sleeve (3203) is provided with a screw thread. A threaded sleeve (3203) is provided on each of the threaded sleeves (3203), and a sealing gasket (3204) is connected to the top of each of the threaded sleeves (3203), which moves inside the storage tank (30). The threaded rods (3208) are connected to each other through a second pulley (3202), and the outer side of the rotating rod (3207) is connected to a second bevel gear (3206). The outer side of the threaded rod (3208) is connected to a first bevel gear (3205), and the first bevel gear (3205) is meshedly connected with the second bevel gear (3206).

4. The thin film gel forming device based on gel tank phase separation technology according to claim 3 is characterized in that: The sealing gasket (3204) moves inside the storage tank (30) and its size matches the storage tank (30).

5. The thin film gel forming device based on gel tank phase separation technology according to claim 2, characterized in that: The nozzles (18) are all trumpet-shaped and are arranged at equal intervals at the bottom end of the through pipe (19).

6. The thin film gel forming device based on gel tank phase separation technology according to claim 1, characterized in that: The stirring blades (15) are provided in two groups, and the two groups are cross-distributed.

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