Reverse osmosis membrane and preparation method thereof

Abstract

The invention discloses a reverse osmosis membrane and a preparation method thereof.In the using process of the reverse osmosis membrane, the moving end of a vertical movable air cylinder drives a lifting block to descend, the lifting block drives a rotating shaft and a cylindrical pressing roller to gradually get close to the surface of a membrane body bottom sheet in the descending process, and therefore the reverse osmosis membrane is formed. When the cylindrical pressing roller moves along the surface of the film body, the cylindrical pressing roller can be driven by the rotating shaft to slowly rotate, so that uniform pressing and flattening are carried out along the surface of a film body bottom sheet, the surface flatness of the film body bottom sheet is improved, and the composite bonding effect of multiple layers of film bodies is further improved; glue liquid is sprayed along the edge area of the surface of the film body bottom piece through the glue storage bin and the glue injection pipe, in the glue liquid spraying process, the spraying angle of the glue injection pipe can be adjusted through micro rotation of the rotating end of the electric rotating column, the glue liquid sprayed out of the glue injection pipe is evenly spread on the edge area of the surface of the film body bottom piece, and the spraying effect of the glue liquid is improved.

Description

Technical Field

[0001] The invention relates to the technical field of reverse osmosis membrane preparation, in particular to a reverse osmosis membrane and a preparation method thereof. Background Art

[0002] Reverse osmosis membrane is an artificial semipermeable membrane with certain characteristics made by simulating biological semipermeable membrane. It is the core component of reverse osmosis technology. The principle of reverse osmosis technology is to separate these substances and water under the action of higher osmotic pressure than the solution, based on the fact that other substances cannot pass through the semipermeable membrane. The pore size of the reverse osmosis membrane is very small, so it can effectively remove dissolved salts, colloids, microorganisms, organic matter, etc. in water. The system has the advantages of good water quality, low energy consumption, no pollution, simple process and easy operation.

[0003] Reverse osmosis membrane is the core component for achieving reverse osmosis. It is an artificial semipermeable membrane with certain characteristics made by simulating biological semipermeable membrane. It is generally made of polymer materials. Such as cellulose acetate membrane, aromatic polyhydrazide membrane, and aromatic polyamide membrane. The diameter of the surface micropores is generally between 0.5 and 10 nm, and the size of the permeability is related to the chemical structure of the membrane itself. Some polymer materials have good salt rejection, but the water permeation rate is not good. The chemical structure of some polymer materials has more hydrophilic groups, so the water permeation rate is relatively fast. Therefore, a satisfactory reverse osmosis membrane should have an appropriate permeation rate or desalination rate.

[0004] The structure of reverse osmosis membranes can be divided into two categories: asymmetric membranes and homogeneous membranes. The membrane materials currently used are mainly cellulose acetate and aromatic polyamide. Its components include hollow fiber, roll, plate and frame, and tube. It can be used for chemical unit operations such as separation, concentration, and purification, and is mainly used in pure water preparation and water treatment industries.

[0005] In the prior art, a high-flux reverse osmosis membrane and a preparation method thereof are disclosed in publication number "CN117899668B", wherein the high-flux reverse osmosis membrane includes a separation layer and a base membrane, the separation layer is composed of the following raw materials in parts by mass: 20 parts of m-phenylenediamine, 8 to 13 parts of triethylamine, 20 to 30 parts of camphorsulfonic acid, 0.5 to 0.8 parts of sodium dodecylsulfonate, 7.5 to 22.5 parts of CNDs@ZIF-90 powder, 0.375 to 1.125 parts of trimesoyl chloride, and 200 parts of Isopar-G, the base membrane is a polysulfone base membrane or a polyethersulfone base membrane, and the preparation of the high-flux reverse osmosis membrane includes preparing carbon nanodots by microwave pyrolysis, preparing ZIF-90 encapsulated carbon nanodots, i.e., CNDs@ZIF-90, and preparing a reverse osmosis membrane introducing CNDs@ZIF-90 by interfacial polymerization. The reverse osmosis membrane prepared by the invention has both high flux and high interception rate, and has good anti-pollution performance and long service life.

[0006] However, the existing technology still has major deficiencies, such as: In the above-mentioned device and the prior art, the composite permeable membrane needs to be compounded with the base non-woven fabric, the polysulfone layer and the desalination layer during the preparation process. During the compounding process, the polysulfone layer and the desalination layer need to be bonded to the surface of the base non-woven fabric. If the composite base and the composite layer cannot be leveled during the bonding process, it will cause wrinkles on the surface of the composite permeable membrane and affect the preparation effect of the permeable membrane. The membrane body is compounded by the composite glue. If the spraying angle of the glue cannot be controlled, the bonding effect of the permeable membrane will be affected. Summary of the invention

[0007] The object of the present invention is to provide a reverse osmosis membrane and a method for preparing the same, so as to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions: a reverse osmosis membrane: comprising a support base, a bonding ramp, a sliding seat and a side bottom platform, the top of the support base is provided with a first column and a second column, the bonding ramp is provided on the top of the first column and the second column, and is used for composite assembly and bonding of osmotic membrane raw materials, and the side bottom platform is provided at one end of the support base; The film bonding surface spraying, smearing and pressing coating unit is arranged in the bonding ramp area, and is used to spray glue on the edge area of ​​the surface of the film material placed on the bonding ramp surface, and make the glue evenly spread on the surface of the film material, and at the same time, press the edge of the bonded upper film material to make the multi-layer film body fit tightly; A permeable membrane bonding assembly loading unit is provided in the side bottom platform area and is used for storing and assembling assembled membrane materials.

[0009] Preferably, the membrane body bonding surface spraying and pressing coating unit includes a pressing part, the pressing part includes a sliding guide rail, the sliding guide rail is arranged in two groups, the two groups of sliding guide rails are symmetrically arranged on the bonding ramp surface, the bonding ramp surface is also provided with a guide slope, the guide slope surface is provided with an adsorption groove, the sliding seat is installed on the moving end of the sliding guide rail, the sliding seat is installed with a support shell on the top of the sliding seat, a placement groove is provided on the surface of the sliding seat, a lifting block is slidably installed inside the support shell, a vertical movable cylinder is installed at the bottom of the placement groove, the movable end of the vertical movable cylinder is fixed to the bottom of the lifting block, a rotating shaft is installed in the inner cavity of the lifting block, and a cylindrical pressure roller is installed between adjacent rotating shafts.

[0010] Preferably, the film body bonding surface spraying and pressing coating unit includes a glue spraying part, and the glue spraying part includes an electric rotating arm, a fixing groove is provided on the rotating end of the electric rotating arm, an electric rotating column is rotatably installed in the fixing groove, a driven gear is installed on the top of the electric rotating column, an electric rotating shaft is embedded in the fixing groove, a driving gear is installed on the rotating end of the electric rotating shaft, the driving gear is meshed with the electric rotating shaft, a rotating disk is installed at the bottom of the electric rotating column, a glue storage bin is installed on the top of the rotating disk, a glue injection pipe is provided at the bottom of the rotating disk, and the glue injection pipe is connected to the glue storage bin.

[0011] Preferably, the permeable membrane bonding assembly loading unit includes a guiding part, which includes an electric roller, which is installed on the surface of the second column, a rotating arm is sleeved on the rotating end of the electric roller, a mounting groove is provided on the surface of the rotating arm, a movable guide rail is installed inside the mounting groove, a movable block is installed on the movable end of the movable guide rail, a top arc block is installed at one end of the movable block, and a top arc plate is installed between adjacent top arc blocks.

[0012] Preferably, the permeable membrane bonding assembly loading unit also includes a snap-fitting portion, which includes a movable arm, a transverse guide rail is installed on the top of the side base, and the movable arm is installed on the top of the movable end of the transverse guide rail. A casing chuck is provided on one side of the movable arm, and a casing body is clamped on the adjacent casing chuck. A clamping block is movably embedded on the casing body, and an embedded slot is provided on one side of the clamping block for inserting the assembled membrane body end.

[0013] Preferably, the top arc plate surface is provided with an arc surface.

[0014] Preferably, a supporting bent arm is installed on one side of the first column, and the bonding ramp is installed on the top of the supporting bent arm.

[0015] Preferably, a conveying roller is installed between adjacent first columns and second columns, and a film conveying belt is sleeved on the surface of the conveying roller.

[0016] Preferably, the adsorption groove area is provided with a membrane bonding and locking unit, and the membrane bonding and locking unit includes an adsorption shell, and the adsorption shell is sealingly installed on the surface of the adsorption groove, and an air suction bin is installed in the inner cavity of the adsorption groove, and the top of the air suction bin is connected to an adsorption air pipe, and the surface of the adsorption shell is provided with adsorption holes.

[0017] A preparation method, based on the above-mentioned reverse osmosis membrane, comprises the following steps: S1: The gas in the adsorption hole area is sucked through the provided air suction bin and the adsorption air pipe, so that the adsorption hole area is in a negative pressure state, thereby adsorbing and fixing the film bottom sheet on the surface of the adsorption shell, improving the stability of the film during the assembly process, and ensuring the smooth bonding of the multi-layer film; S2: When the cylindrical roller moves along the surface of the film, it will rotate slowly driven by the rotating shaft, so as to evenly press and flatten the surface of the film bottom sheet, thereby improving the flatness of the surface of the film bottom sheet, thereby further improving the composite bonding effect of the multi-layer film; S3: During the glue spraying process, the spraying angle of the glue injection tube can be adjusted by slightly rotating the rotating end of the electric rotating column, so that the glue sprayed from the glue injection tube is evenly spread on the edge area of ​​the film bottom surface, thereby improving the glue spraying effect; S4: The top arc block is driven by the moving guide rail to gradually extend outward. The top arc plate guides one end of the membrane body upward and lifts it up during the rotation. The operator can insert one end of the membrane body into the embedded slot on one side of the block, and then insert the block into the sleeve body, and then drive the sleeve chuck to rotate, thereby completing the rotational winding of the membrane body and improving the preparation efficiency of the membrane body.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1: When in use, the moving end of the vertical movable cylinder drives the lifting block to descend. During the descent of the lifting block, the rotating shaft and the cylindrical pressure roller gradually approach the surface of the film bottom film. When the cylindrical pressure roller moves along the surface of the film body, the cylindrical pressure roller will slowly rotate under the drive of the rotating shaft, thereby evenly pressing and flattening along the surface of the film bottom film, improving the surface flatness of the film bottom film, thereby further improving the composite bonding effect of the multi-layer film body; 2: When in use, glue is sprayed along the edge area of ​​the film surface through the glue storage bin and the glue injection tube. During the glue spraying process, the spraying angle of the glue injection tube can be adjusted by slightly rotating the rotating end of the electric rotating column, so that the glue sprayed from the glue injection tube is evenly spread on the edge area of ​​the film surface, thereby improving the glue spraying effect; 3: When in use, the operator can insert one end of the membrane into the embedded slot on one side of the card block, then insert the card block into the sleeve body, and then drive the sleeve chuck to rotate, thereby completing the rotation and winding of the membrane body and improving the preparation efficiency of the membrane body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall schematic diagram of the device of the present invention; Figure 2 For the present invention Figure 1 The enlarged schematic diagram at A in the middle; Figure 3 It is a partial schematic diagram of the electric rotating arm in the present invention; Figure 4It is a schematic diagram of the sliding seat part in the present invention; Figure 5 It is a schematic diagram of the bonding ramp part in the present invention; Figure 6 It is a partial schematic diagram of the adsorption tank in the present invention; Figure 7 It is a schematic diagram of the rotating arm part of the present invention; Figure 8 It is a schematic diagram of the side base portion of the present invention.

[0020] In the figure: 1, support base; 11, first column; 12, second column; 13, support arm; 14, conveying roller; 15, film conveyor belt; 2, bonding ramp; 21, sliding guide rail; 22, guide slope; 23, adsorption groove; 3, sliding seat; 31, support shell; 32, placement groove; 321, vertical movable cylinder; 33, lifting block; 34, rotating shaft; 35, cylindrical roller; 4, side bottom platform; 41, transverse guide rail; 42, moving arm; 43, casing chuck; 44, casing Body; 45, card block; 46, embedded slot; 6, electric rotating arm; 61, fixed slot; 62, rotating column; 63, driven gear; 64, electric rotating shaft; 65, driving gear; 66, rotating disk; 67, glue storage bin; 68, glue injection tube; 7, adsorption shell; 71, adsorption hole; 72, adsorption air pipe; 73, suction bin; 8, rotating arm; 81, mounting slot; 82, moving guide rail; 83, moving block; 84, top arc block; 85, top arc plate; 86, arc surface; 87, electric rotating roller. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-8 , the present invention provides a technical solution: Embodiment 1: A reverse osmosis membrane: comprising a support base 1, a bonding ramp 2, a sliding seat 3 and a side bottom platform 4, wherein a first column 11 and a second column 12 are arranged on the top of the support base 1, the bonding ramp 2 is arranged on the top of the first column 11 and the second column 12, and is used for composite assembly and bonding of osmotic membrane raw materials, and the side bottom platform 4 is arranged at one end of the support base 1; A supporting arm 13 is installed on one side of the first column 11 , and the bonding ramp 2 is installed on the top of the supporting arm 13 .

[0023] A conveying roller 14 is installed between adjacent first columns 11 and second columns 12 , and a film conveying belt 15 is sleeved on the surface of the conveying roller 14 .

[0024] The unit for spraying, smearing and pressing the adhesive surface of the membrane is arranged in the area of ​​the adhesive ramp 2, and is used to spray the adhesive on the edge area of ​​the surface of the membrane material placed on the surface of the adhesive ramp 2, and evenly spread the adhesive on the surface of the membrane material, and at the same time press the edge of the adhesive upper membrane material to make the multi-layer membrane fit tightly; The membrane bonding surface spraying and evenly pressing coating unit includes a pressing part, which includes a sliding guide rail 21. The sliding guide rail 21 is set to two groups. The two groups of sliding guide rails 21 are symmetrically arranged on the surface of the bonding ramp 2. The surface of the bonding ramp 2 is also provided with a guide slope 22. The surface of the guide slope 22 is provided with an adsorption groove 23. The sliding seat 3 is installed on the moving end of the sliding guide rail 21. A supporting shell 31 is installed on the top of the sliding seat 3. A placement groove 32 is provided on the surface of the sliding seat 3. A lifting block 33 is slidably installed inside the supporting shell 31. A vertical movable cylinder 321 is installed at the bottom of the placement groove 32. The movable end of the vertical movable cylinder 321 is fixed to the bottom of the lifting block 33. A rotating shaft 34 is installed in the inner cavity of the lifting block 33, and a cylindrical pressure roller 35 is installed between adjacent rotating shafts 34.

[0025] The film bonding surface spraying and pressing coating unit includes a glue spraying part, which includes an electric rotating arm 6, a fixed groove 61 is provided on the rotating end of the electric rotating arm 6, an electric rotating column 62 is rotatably installed in the fixed groove 61, a driven gear 63 is installed on the top of the electric rotating column 62, an electric rotating shaft 64 is embedded in the fixed groove 61, a driving gear 65 is installed on the rotating end of the electric rotating shaft 64, the driving gear 65 is meshed with the electric rotating shaft 64, a rotating disk 66 is installed at the bottom of the electric rotating column 62, a glue storage bin 67 is installed on the top of the rotating disk 66, a glue injection tube 68 is provided at the bottom of the rotating disk 66, and the glue injection tube 68 is connected to the glue storage bin 67.

[0026] In this embodiment, after the surface of the membrane bottom film is leveled, the electric rotating shaft 64 is driven to rotate reciprocatingly. The reciprocating rotation of the electric rotating shaft 64 will drive the driving gear 65 to engage and drive the driven gear 63 to rotate reciprocatingly. The rotation of the driven gear 63 drives the electric rotating column 62 and the rotating disk 66 to rotate reciprocatingly. During the reciprocating rotation of the rotating disk 66, glue is sprayed along the edge area of ​​the surface of the membrane bottom film through the glue storage bin 67 and the glue injection tube 68. During the glue spraying process, the spraying angle of the glue injection tube 68 can be adjusted by slightly rotating the rotating end of the electric rotating column 62, so that the glue sprayed from the glue injection tube 68 is evenly spread on the edge area of ​​the surface of the membrane bottom film, thereby improving the glue spraying effect.

[0027] A permeable membrane bonding assembly loading unit, which is arranged in the side bottom platform 4 area and is used to store and assemble the assembled membrane materials; The permeable membrane bonding assembly loading unit includes a guiding part, which includes an electric roller 87, which is installed on the surface of the second column 12, and a rotating arm 8 is sleeved on the rotating end of the electric roller 87. A mounting groove 81 is provided on the surface of the rotating arm 8, and a movable guide rail 82 is installed inside the mounting groove 81. A movable block 83 is installed on the movable end of the movable guide rail 82, and a top arc block 84 is installed at one end of the movable block 83, and a top arc plate 85 is installed between adjacent top arc blocks 84.

[0028] The top arc plate 85 is provided with an arc surface 86 on its surface.

[0029] The permeable membrane bonding assembly loading unit also includes a snap-fitting portion, which includes a movable arm 42. A transverse guide rail 41 is installed on the top of the side base 4. The movable arm 42 is installed on the top of the movable end of the transverse guide rail 41. A sleeve chuck 43 is arranged on one side of the movable arm 42. A sleeve body 44 is clamped on the adjacent sleeve chuck 43. A clamping block 45 is movably embedded on the sleeve body 44. An embedded slot 46 is arranged on one side of the clamping block 45 for inserting the assembled membrane body end.

[0030] In this embodiment, in order to facilitate the smooth insertion of the membrane body into the embedded slot 46 inside the block 45, the electric roller 87 can be driven to rotate, and the electric roller 87 drives the rotating arm 8 to rotate. During the rotation process, the rotating arm 8 will drive part of the top arc plate 85 to rotate. During the rotation of the top arc plate 85, the top arc block 84 is driven by the movable guide rail 82 to gradually extend outward. During the rotation process, the top arc plate 85 guides one end of the membrane body upward and lifts it up. The operator can insert one end of the membrane body into the embedded slot 46 on one side of the block 45, and then insert the block 45 into the sleeve body 44, and then drive the sleeve chuck 43 to rotate, thereby completing the rotational winding of the membrane body and improving the preparation efficiency of the membrane body.

[0031] Embodiment 2:

[0032] Based on the first embodiment, in this embodiment, it is considered that if the membrane bottom sheet cannot be locked when the membrane bottom sheet is bonded, it will cause wrinkles in the composite membrane, affecting the composite effect of the permeable membrane. Therefore, a membrane bonding and locking unit is provided in this embodiment to avoid the above problem. The adsorption tank 23 region is provided with a membrane bonding and locking unit, which includes an adsorption shell 7, which is sealed and installed on the surface of the adsorption tank 23, and an air suction bin 73 is installed in the inner cavity of the adsorption tank 23, and an adsorption air pipe 72 is connected to the top of the air suction bin 73, and adsorption holes 71 are provided on the surface of the adsorption shell 7; In this embodiment, the surface of the adsorption shell 7 in the adsorption groove 23 area is roughened, and the adsorption shell 7 will prevent the membrane bottom film from sliding. After the membrane bottom film is placed, in order to further improve the locking effect of the membrane bottom film, the gas in the adsorption hole 71 area can be sucked through the provided air suction bin 73 and the adsorption air pipe 72, so that the adsorption hole 71 area is in a negative pressure state, thereby adsorbing and fixing the membrane bottom film on the surface of the adsorption shell 7, thereby improving the stability of the membrane during the assembly process and ensuring the smooth bonding of the multi-layer membrane.

[0033] A preparation method, based on a reverse osmosis membrane, comprises the following steps: S1: The gas in the adsorption hole 71 area is sucked by the provided air suction bin 73 and the adsorption air pipe 72, so that the adsorption hole 71 area is in a negative pressure state, thereby adsorbing and fixing the film bottom sheet to the surface of the adsorption shell 7, improving the stability of the film during the assembly process, and ensuring the smooth bonding of the multi-layer film; S2: When the cylindrical pressing roller 35 moves along the surface of the film, the cylindrical pressing roller 35 will rotate slowly under the drive of the rotating shaft 34, so as to evenly press and flatten the surface of the film bottom sheet, thereby improving the flatness of the surface of the film bottom sheet, thereby further improving the composite bonding effect of the multi-layer film; S3: During the spraying process of the glue, the spraying angle of the glue injection tube 68 can be adjusted by slightly rotating the rotating end of the electric rotating column 62, so that the glue sprayed from the glue injection tube 68 is evenly spread on the edge area of ​​the film bottom surface, thereby improving the spraying effect of the glue; S4: The top arc block 84 is driven by the movable guide rail 82 to gradually extend outward, and the top arc plate 85 guides and lifts one end of the membrane body upward during the rotation process. The operator can insert one end of the membrane body into the embedded slot 46 on one side of the block 45, and then insert the block 45 into the sleeve body 44, and then drive the sleeve chuck 43 to rotate, thereby completing the rotational winding of the membrane body and improving the preparation efficiency of the membrane body.

[0034] Working principle: When the device is in use, the operator places the cut film on the guide slope 22 at the top of the bonding ramp 2. The surface of the adsorption shell 7 in the adsorption groove 23 area is rough, and the adsorption shell 7 will prevent the film from sliding. After the film is placed, in order to further improve the locking effect of the film, the air in the adsorption hole 71 area can be sucked through the provided air suction bin 73 and the adsorption air pipe 72, so that the adsorption hole 71 area is in a negative pressure state, thereby adsorbing and fixing the film to the surface of the adsorption shell 7; After the film bottom film is installed, in order to ensure the smoothness of the film surface, the sliding guide rails 21 on both sides of the top of the bonding ramp 2 can be driven to drive the sliding seat 3 to move back and forth along the guide slope 22. Before the sliding seat 3 moves, the vertical movable cylinder 321 installed in the placement groove 32 on the surface of the sliding seat 3 is driven to move, and the moving end of the vertical movable cylinder 321 drives the lifting block 33 to descend. During the descent of the lifting block 33, the rotating shaft 34 and the cylindrical pressing roller 35 are driven to gradually approach the surface of the film bottom film. When the cylindrical pressing roller 35 moves along the surface of the film, the cylindrical pressing roller 35 will slowly rotate driven by the rotating shaft 34, so as to evenly press and flatten the surface of the film bottom film. When the surface of the film body is flattened, the electric rotating shaft 64 is driven to rotate back and forth. The reciprocating rotation of the electric rotating shaft 64 drives the driving gear 65 to mesh and drive the driven gear 63 to rotate back and forth. The rotation of the driven gear 63 drives the electric rotating column 62 and the rotating disk 66 to rotate back and forth. During the reciprocating rotation of the rotating disk 66, the glue is sprayed along the edge area of ​​the surface of the film body through the glue storage bin 67 and the glue injection tube 68. During the glue spraying process, the spraying angle of the glue injection tube 68 can be adjusted by slightly rotating the rotating end of the electric rotating column 62, so that the glue sprayed from the glue injection tube 68 is evenly spread on the edge area of ​​the surface of the film body. After the glue is sprayed, the top sheet of the membrane to be composited is loaded on the surface of the bottom sheet of the membrane, and then the sliding guide rails 21 on both sides of the top of the bonding ramp 2 are driven again to drive the sliding seat 3 to reciprocate along the guide slope 22, so that the cylindrical pressing roller 35 moves along the surface of the top sheet of the membrane. The cylindrical pressing roller 35 will rotate slowly under the drive of the rotating shaft 34, thereby pressing the surface of the bottom sheet of the membrane, so that the top sheet of the membrane and the bottom sheet of the membrane are tightly fastened and fixed. When the membrane is bonded, the adsorption air pipe 72 is closed to make the membrane fall from the surface of the guide slope 22, and then the membrane is transported to the area close to the sleeve body 44 under the transportation of the conveying roller 14 and the membrane conveyor belt 15. At this time, In order to facilitate the smooth insertion of the membrane into the embedded slot 46 inside the block 45, the electric roller 87 can be driven to rotate, and the electric roller 87 drives the rotating arm 8 to rotate. During the rotation process, the rotating arm 8 will drive part of the top arc plate 85 to rotate. During the rotation of the top arc plate 85, the top arc block 84 is driven by the movable guide rail 82 to gradually extend outward. During the rotation process, the top arc plate 85 guides one end of the membrane upward and lifts it up. The operator can insert one end of the membrane into the embedded slot 46 on one side of the block 45, and then insert the block 45 into the sleeve body 44, and then drive the sleeve chuck 43 to rotate, thereby completing the rotational winding of the membrane and improving the preparation efficiency of the membrane.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reverse osmosis membrane, characterized in that: The invention comprises a support base (1), a bonding ramp (2), a sliding seat (3) and a side base (4); the top of the support base (1) is provided with a first column (11) and a second column (12); the bonding ramp (2) is arranged on the top of the first column (11) and the second column (12) and is used for composite assembly and bonding of osmotic membrane raw materials; and the side base (4) is arranged at one end of the support base (1); A unit for spraying, smearing and pressing the adhesive surface of the membrane, wherein the unit is arranged in the region of the adhesive ramp (2) and is used to spray adhesive on the edge region of the surface of the membrane material placed on the surface of the adhesive ramp (2), and to evenly spread the adhesive on the surface of the membrane material, and at the same time to press the edge of the adhesive upper layer of the membrane material, so that the multi-layer membrane is tightly fitted; A permeable membrane bonding assembly loading unit is provided in the side bottom platform (4) area and is used for storing and assembling assembled membrane materials.

2. A reverse osmosis membrane according to claim 1, characterized in that: The film body bonding surface spraying and pressing coating unit comprises a pressing part, the pressing part comprises a sliding guide rail (21), the sliding guide rail (21) is arranged in two groups, the two groups of sliding guide rails (21) are symmetrically arranged on the surface of the bonding ramp (2), the surface of the bonding ramp (2) is also provided with a guide slope (22), the surface of the guide slope (22) is provided with an adsorption groove (23), the sliding seat (3) is installed on the moving end of the sliding guide rail (21), the sliding seat ( 3) A support shell (31) is installed on the top, a placement groove (32) is provided on the surface of the sliding seat (3), a lifting block (33) is slidably installed inside the support shell (31), a vertical movable cylinder (321) is installed at the bottom of the placement groove (32), the movable end of the vertical movable cylinder (321) is fixed to the bottom of the lifting block (33), a rotating shaft (34) is installed in the inner cavity of the lifting block (33), and a cylindrical pressure roller (35) is installed between adjacent rotating shafts (34).

3. A reverse osmosis membrane according to claim 2, characterized in that: The film body bonding surface glue spraying and pressing coating unit comprises a glue spraying part, which comprises an electric rotating arm (6), a fixing groove (61) is provided on the rotating end of the electric rotating arm (6), an electric rotating column (62) is rotatably installed in the fixing groove (61), a driven gear (63) is installed on the top of the electric rotating column (62), an electric rotating shaft (64) is embedded in the fixing groove (61), a driving gear (65) is installed on the rotating end of the electric rotating shaft (64), and the driving gear (65) is meshed with the electric rotating shaft (64), a rotating disk (66) is installed at the bottom of the electric rotating column (62), a glue storage bin (67) is installed on the top of the rotating disk (66), a glue injection pipe (68) is provided at the bottom of the rotating disk (66), and the glue injection pipe (68) is connected to the glue storage bin (67).

4. A reverse osmosis membrane according to claim 3, characterized in that: The permeable membrane bonding assembly loading unit comprises a guide portion, the guide portion comprises an electric roller (87), the electric roller (87) is mounted on the surface of the second column (12), a rotating arm (8) is sleeved on the rotating end of the electric roller (87), a mounting groove (81) is provided on the surface of the rotating arm (8), a movable guide rail (82) is installed inside the mounting groove (81), a movable block (83) is installed on the movable end of the movable guide rail (82), a top arc block (84) is installed at one end of the movable block (83), and a top arc plate (85) is installed between adjacent top arc blocks (84).

5. A reverse osmosis membrane according to claim 4, characterized in that: The permeable membrane bonding assembly loading unit also includes a buckling portion, which includes a movable arm (42). A transverse guide rail (41) is installed on the top of the side base (4). The movable arm (42) is installed on the top of the movable end of the transverse guide rail (41). A sleeve clamping disc (43) is provided on one side of the movable arm (42). A sleeve body (44) is clamped on the adjacent sleeve clamping disc (43). A clamping block (45) is movably embedded in the sleeve body (44). An embedded slot (46) is provided on one side of the clamping block (45) for inserting the end of the assembled membrane body.

6. A reverse osmosis membrane according to claim 5, characterized in that: The top arc plate (85) is provided with an arc surface (86) on its surface.

7. A reverse osmosis membrane according to claim 1, characterized in that: A supporting curved arm (13) is installed on one side of the first column (11), and the bonding ramp (2) is installed on the top of the supporting curved arm (13).

8. A reverse osmosis membrane according to claim 6, characterized in that: A conveying roller (14) is installed between adjacent first columns (11) and second columns (12), and a film conveying belt (15) is sleeved on the surface of the conveying roller (14).

9. A reverse osmosis membrane according to claim 8, characterized in that: The adsorption groove (23) region is provided with a membrane bonding and locking unit, the membrane bonding and locking unit comprising an adsorption shell (7), the adsorption shell (7) is sealingly mounted on the surface of the adsorption groove (23), an air suction bin (73) is mounted in the inner cavity of the adsorption groove (23), the top of the air suction bin (73) is connected to an adsorption air pipe (72), and the surface of the adsorption shell (7) is provided with adsorption holes (71).

10. A preparation method, based on the reverse osmosis membrane according to claim 9, characterized in that: The steps include: S1: The gas in the adsorption hole (71) region is sucked by the provided air suction bin (73) and the adsorption air pipe (72), so that the adsorption hole (71) region is in a negative pressure state, thereby adsorbing and fixing the film body bottom sheet to the surface of the adsorption shell (7), improving the stability of the film body during the assembly process, and ensuring the smooth bonding of the multi-layer film body; S2: When the cylindrical pressing roller (35) moves along the surface of the film, the cylindrical pressing roller (35) will slowly rotate under the drive of the rotating shaft (34), thereby evenly pressing and flattening the surface of the film bottom sheet, thereby improving the flatness of the surface of the film bottom sheet, thereby further improving the composite bonding effect of the multi-layer film; S3: During the spraying process of the glue liquid, the spraying angle of the glue injection tube (68) can be adjusted by slightly rotating the rotating end of the electric rotating column (62), so that the glue liquid sprayed from the glue injection tube (68) is evenly spread on the edge area of ​​the surface of the film body bottom film, thereby improving the spraying effect of the glue liquid; S4: The top arc block (84) is driven by the movable guide rail (82) to gradually extend outward, and the top arc plate (85) guides one end of the membrane body upward and lifts it during the rotation process. The operator can insert one end of the membrane body into the embedded slot (46) on one side of the clamping block (45), and then insert the clamping block (45) into the sleeve body (44), and then drive the sleeve chuck (43) to rotate, thereby completing the rotational winding of the membrane body and improving the preparation efficiency of the membrane body.

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