Alkaline zinc-manganese battery separator and process for its preparation

Abstract

The application discloses a basic zinc-manganese battery diaphragm and a preparation process thereof, and belongs to the technical field of the preparation of a basic zinc-manganese battery diaphragm. The application relates to a polymerization kettle, a transmission device is arranged on the top of the polymerization kettle, and a mechanical seal is arranged between the transmission device and the polymerization kettle. In the application, the downward sliding of the pressure-increasing disc increases the pressure intensity of the polymerization kettle corresponding to the lower part of the pressure-increasing disc, and the upward sliding of the pressure-increasing disc gradually restores the pressure intensity of the polymerization kettle corresponding to the lower part of the pressure-increasing disc. According to the chemical kinetics principle, increasing the pressure can increase the collision frequency of reactant molecules, thereby accelerating the reaction rate. For the polymerization reaction of olefin monomers, appropriate pressure increase is helpful to shorten the reaction time, improve the production efficiency, and make the reactants more fully contact and react, thereby reducing the residue of unreacted monomers, improving the utilization rate of raw materials, and simultaneously changing the pressure intensity of the lower part of the pressure-increasing disc in a small range, which can play a role in defoaming to a certain extent.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of alkaline zinc-manganese battery separator preparation, and particularly relates to an alkaline zinc-manganese battery separator and a preparation process thereof. BACKGROUND

[0002] The preparation process of the alkaline zinc-manganese battery separator involves multiple steps, aiming to ensure that the separator has good isolation performance, ion conductivity and alkali resistance. The preparation process of the alkaline zinc-manganese battery separator includes substrate selection and treatment, preparation of an olefin monomer aqueous solution, adsorption of the olefin monomer solution on a non-woven substrate, electron beam irradiation, post-treatment, and performance testing and finishing. The preparation of the olefin monomer aqueous solution includes monomer selection and solution preparation. In the monomer selection, an olefin monomer containing an anion group is selected, such as methyl methacrylate, acrylic acid, maleic anhydride and sodium styrene sulfonate. These monomers can undergo graft copolymerization with fibers to form polymer chains with hydrophilicity. In the solution preparation, the olefin monomer, water, tackifier and wetting agent are mixed in a certain proportion to prepare the olefin monomer aqueous solution.

[0003] Some invention patents in the technical field of alkaline zinc-manganese battery separator preparation are disclosed in the prior art. The invention patent with the publication number CN116722304A discloses a high-permeability aramid-coated separator and a preparation process thereof, which includes the following steps: uniformly mixing aramid solution and polyvinyl alcohol solution, and performing mixed modification. The mass ratio of aramid and polyvinyl alcohol is 1:1-1. During the mixing process, the amide groups on the aramid nanofiber molecules and the hydroxyl groups on the polyvinyl alcohol molecules and the hydroxyl groups on the water molecules form strong hydrogen bonds with each other and establish an interconnected polymer network. The temperature for mixed modification is 11-31℃, and the time for mixed modification is 21-61min. The molecular weight of the polyvinyl alcohol is 146111-18611. After the mixed modification is completed, a defoaming agent and a binder are added, and the mixture is uniformly mixed to obtain a coating slurry. The coating slurry is coated on one side or both sides of the separator, dried, and then subjected to solvent exchange through a pure water tank. Finally, drying is performed to obtain the aramid-coated separator, which has better performance in terms of air permeability and thermal stability. However, this technical solution still has some deficiencies in use. The addition of a defoaming agent to eliminate the foam in the polymerization reactant will have some negative effects on increasing the production cost. If the amount of the defoaming agent added is too small, the defoaming effect will be poor, and if the amount is too large, impurities will be increased in the polymerization reactant. Moreover, the defoaming effect of the defoaming agent is also related to its dispersion effect, which will limit the polymerization speed and reduce the utilization rate of raw materials, further increasing the production cost.

[0004] Therefore, the alkaline zinc-manganese battery separator and the preparation process thereof are designed to solve the above problems. SUMMARY

[0005] The alkali zinc-manganese battery diaphragm and the preparation process thereof.

[0006] In order to achieve the above-mentioned purpose, the technical scheme is adopted as follows:

[0007] The preparation process of the alkali zinc-manganese battery diaphragm comprises the following steps:

[0008] The base material is selected and treated: alkali-resistant non-woven fabric is selected as the base material, the base material should be short fibers with a fineness of not more than 2.0 denier, and the base material is treated by

[0009] Prepared by the non-woven fabric process of wet papermaking;

[0010] Preparation of the aqueous solution of olefin monomers: the aqueous solution of olefin monomers comprises anionic group-containing olefin monomers, water, tackifier and wetting agent, the mass concentration of the olefin monomers is between 5% and 40%, the mass percentage of water is 70%-89%, the anionic group-containing olefin monomers are 10%-29%, and the addition amount of the tackifier and the wetting agent is adjusted according to specific requirements;

[0011] Adsorption of the olefin monomer solution on the non-woven fabric base material: the aqueous solution of olefin monomers is uniformly adsorbed on the non-woven fabric base material by coating process, the amount of the adsorbed aqueous solution of olefin monomers is 100%-400% of the mass of the non-woven fabric base material, and the base material is first subjected to heat pressing treatment to make it flat before the coating process is carried out;

[0012] Electron beam irradiation: the non-woven fabric base material with the adsorbed aqueous solution of olefin monomers is continuously irradiated by an electron beam irradiation device, in the irradiation process, the olefin monomers adsorbed on the surface of the fibers will undergo graft copolymerization reaction with the fibers, and at the same time, homopolymerization of the olefin monomers and crosslinking between the grafted polymer molecules, the homopolymer molecules and other polymer molecules in the grafting solution will also occur;

[0013] Post-treatment: the homopolymers and unreacted monomers are removed by water washing, and then the water is removed by drying;

[0014] The device for preparing the aqueous solution of olefin monomers comprises a polymerization kettle, a transmission device is installed at the top of the polymerization kettle, a mechanical seal is arranged between the transmission device and the polymerization kettle, a stirring device connected with the transmission device is rotatably connected inside the polymerization kettle, and a pressurizing assembly for increasing the pressure of the polymerization reaction environment is embedded in the polymerization kettle corresponding to the stirring device;

[0015] The bottom of the stirring device is provided with a vibration groove, and the bottom of the polymerizer is connected with a vibration assembly for providing exciting force to the polymerization environment.

[0016] As a further description of the above technical solution:

[0017] The polymerizer comprises an inner cylinder, the outer wall of the inner cylinder is sleeved with a jacket, the jacket and the inner cylinder are nested with spiral blades, one end of the jacket outer wall is communicated with a first input pipe corresponding to the spiral blades, and the other end of the jacket outer wall is communicated with a first output pipe corresponding to the spiral blades.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the stirring device is provided with an exhaust hole, the outer wall of the stirring device is rotatably connected with an exhaust sleeve through two sealing bearings corresponding to the exhaust hole, the outer wall of the exhaust sleeve is communicated with a second output pipe, and the other end of the second output pipe is communicated with the first input pipe.

[0020] As a further description of the above technical solution:

[0021] The booster assembly comprises a booster disc sleeved in the inner cylinder, the booster disc is slidably connected to the stirring device, the outer wall of the booster disc is provided with a sealing groove, and the sealing groove is sleeved with a sealing ring.

[0022] Both sides of the top of the booster disc are connected with booster pieces, the two booster pieces are engaged with the same driving bevel gear, and the driving bevel gear is sleeved on the stirring device.

[0023] As a further description of the above technical solution:

[0024] The booster piece comprises a mounting plate connected to the top of the inner cylinder, the other end of the mounting plate is rotatably connected with a special-shaped shaft, the end of the special-shaped shaft is sleeved with a driven bevel gear, the driven bevel gear is engaged with the driving bevel gear, the U-shaped node of the special-shaped shaft is rotatably sleeved with an adapter sleeve, the adapter sleeve is sleeved with a rocker, and the other end of the rocker is rotatably connected with an adapter seat connected with the booster disc.

[0025] As a further description of the above technical solution:

[0026] The inner cylinder and the jacket are clamped with an air suction pipe above the corresponding booster disc, one end of the air suction pipe is provided with a one-way flow blocking assembly, the one-way flow blocking assembly comprises a mounting disc connected with the other end of the air suction pipe, a filter disc is sleeved in one end of the mounting disc, a sleeve is clamped in the other end of the mounting disc, a bucket-shaped cover is clamped in the sleeve, a spherical valve is sleeved in the bucket-shaped cover, a movable shaft is connected with the other end of the spherical valve, a supporting disc is sleeved in the sleeve and connected with the other end of the movable shaft, a first spring is sleeved on the movable shaft, and the spherical valve is elastically supported and connected with the supporting disc through the first spring.

[0027] As a further description of the above technical solution:

[0028] The vibration assembly comprises a driving box connected to the bottom of the jacket, a driving shaft is rotatably connected to the top of the driving box, a driving wheel is sleeved on the end of the driving shaft, and two vibration bearings are sleeved on the other end of the driving shaft, and the driving shaft is sleeved in the vibration groove through the two vibration bearings.

[0029] The outer wall of the driving box is communicated with a second input pipe in the tangential direction, the other end of the second input pipe is communicated with a pressure relief pipe, and the other end of the pressure relief pipe is communicated with the inside of the inner cylinder.

[0030] As a further description of the above technical solution:

[0031] The driving shaft is sleeved with an elastic plugging piece, the elastic plugging piece comprises a fixing sleeve sleeved on the driving shaft, a plurality of sliding grooves in an annular array are formed in the outer wall of the fixing sleeve, a sliding block is slidably connected in the sliding groove, a second spring is connected to the end of the sliding block, and the sliding block is elastically supported and connected with the end face in the sliding groove through the second spring, a plugging disc is sleeved on the outer wall of the fixing sleeve, the inner wall of the plugging disc is connected with the sliding block, and the top of the plugging disc abuts against the bottom of the stirring device.

[0032] As described above, due to the adoption of the above technical solution, the beneficial effects of the present application are:

[0033] 1、In the present application, the downward sliding of the booster disc will increase the pressure intensity of the corresponding booster disc below the inner part of the polymerization kettle, and the upward sliding of the booster disc will gradually restore the pressure intensity of the corresponding booster disc below the inner part of the polymerization kettle, according to the principle of chemical kinetics, increasing the pressure can increase the collision frequency of reactant molecules, thereby accelerating the reaction rate, for the polymerization reaction of olefin monomers, appropriate pressurization can help shorten the reaction time and improve the production efficiency, pressurization can help the reactants to contact and react more fully, reduce the residue of unreacted monomers, improve the utilization rate of raw materials, and at the same time, small range change of the pressure intensity below the booster disc can play a role in defoaming to a certain extent.

[0034] 2. In this invention, the vibration force is directly applied to the inside of the polymerization reaction through the stirring device. The vibration causes the air bubbles in the polymer reactants to disperse, diffuse or float to the surface, thereby eliminating the air bubbles in the polymer reactants. There is no need to use defoamers, thus avoiding increased production costs.

[0035] 3. In this invention, the temperature inside the inner cylinder gradually increases from bottom to top below the pressure plate. As the air flows through the drive shaft and the stirring device, heat exchange occurs through the stirring device, thereby reducing the impact of the heating effect caused by the pressure boost. Since the heated air flows from top to bottom along the spiral blades, it can maintain a constant temperature and reduce external interference with the polymerization reaction inside the inner cylinder. On the other hand, it can achieve a uniform temperature effect on the polymerization reaction inside the inner cylinder, making the temperature of the upper and lower layers of the polymer reactant even. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of the alkaline zinc-manganese battery separator and its preparation process proposed in this invention.

[0037] Figure 2 This is a schematic diagram of the unidirectional current-blocking component in the alkaline zinc-manganese battery separator and its preparation process proposed in this invention.

[0038] Figure 3 This is a schematic diagram of the unidirectional current-blocking component disassembled in the alkaline zinc-manganese battery separator and its preparation process proposed in this invention.

[0039] Figure 4 This is a schematic diagram of the alkaline zinc-manganese battery separator and its preparation process proposed in this invention from another perspective.

[0040] Figure 5 This is a schematic diagram of the structure of the vibration component in the alkaline zinc-manganese battery separator and its preparation process proposed in this invention.

[0041] Figure 6 This is a schematic diagram of the structure of the vibration component disassembled during the preparation process of the alkaline zinc-manganese battery separator proposed in this invention.

[0042] Figure 7 The alkaline zinc-manganese battery separator and its preparation process proposed in this invention. Figure 6 Enlarged structural diagram at point B;

[0043] Figure 8 This is a structural diagram showing the alkaline zinc-manganese battery separator and its preparation process proposed in this invention, broken down into its components.

[0044] Figure 9 The alkaline zinc-manganese battery separator and its preparation process proposed in this invention. Figure 8 Enlarged structural diagram at point A;

[0045] Figure 10 The sectional structure schematic diagram of the alkaline zinc-manganese battery diaphragm and the preparation process thereof provided by the present application;

[0046] Figure 11 The structure schematic diagram of the alkaline zinc-manganese battery diaphragm and the preparation process thereof provided by the present application under the splitting of the polymerization kettle.

[0047] Legend:

[0048] 1, polymerization kettle; 101, inner cylinder; 102, jacket; 103, spiral blade; 104, first input pipe; 105, first output pipe; 2, mechanical seal; 3, transmission device; 4, stirring device; 5, booster assembly; 501, booster disc; 502, sealing ring; 503, booster; 5031, mounting plate; 5032, special-shaped shaft; 5033, driven bevel gear; 5034, adapter sleeve; 5035, rocker; 5036, adapter seat; 504, driving bevel gear; 6, one-way cut-off assembly; 601, mounting disc; 602, filter disc; 603, sleeve; 604, bucket cover; 605, spherical valve; 606, support disc; 607, movable shaft; 608, first spring; 7, vibration assembly; 701, drive box; 702, drive shaft; 703, drive wheel; 704, vibration bearing; 705, eccentric shaft; 706, elastic sealing element; 7061, fixed sleeve; 7062, sliding block; 7063, second spring; 7064, sealing disc; 7065, sliding groove; 8, second input pipe; 9, exhaust sleeve; 10, pressure relief pipe. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0050] Please refer to the drawings in the embodiments of the present application Figure 1 - the drawings in the embodiments of the present application Figure 11 The present application provides a technical solution: the preparation process of the alkaline zinc-manganese battery diaphragm, characterized in that it comprises the following steps:

[0051] Base material selection and treatment: alkali-resistant non-woven fabric fibers are selected as the base material, the base material should use short fibers with a fineness of not more than 2.0 denier, and is prepared by a wet-laid non-woven fabric process;

[0052] The preparation of the aqueous solution of the olefin monomer includes an anion group-containing olefin monomer, water, a tackifier and a wetting agent, the mass concentration of the olefin monomer is between 5% and 40%, the mass percentage of water is between 70% and 89%, the anion group-containing olefin monomer is between 10% and 29%, and the addition amount of the tackifier and the wetting agent is adjusted according to specific requirements;

[0053] The adsorption of the solution of the olefin monomer on the non-woven fabric substrate: the aqueous solution of the olefin monomer is uniformly adsorbed on the non-woven fabric substrate by a coating process, the amount of the adsorbed aqueous solution of the olefin monomer is 100% to 400% of the mass of the non-woven fabric substrate, and the substrate is subjected to heat pressing treatment to make it flat before the coating process is performed;

[0054] Electron beam irradiation: the non-woven fabric substrate adsorbed with the aqueous solution of the olefin monomer is continuously irradiated by an electron beam irradiation device, in the irradiation process, the olefin monomer adsorbed on the surface of the fiber will undergo graft copolymerization with the fiber, at the same time, homopolymerization of the olefin monomer and crosslinking between the grafted polymer molecules, the homopolymer molecules and other polymer molecules in the grafting solution will also occur;

[0055] Post-processing: the homopolymer and unreacted monomer are removed by water washing, and then the water is removed by drying;

[0056] The device for preparing the aqueous solution of the olefin monomer includes a polymerization kettle 1, a transmission device 3 is installed on the top of the polymerization kettle 1, a mechanical seal 2 is arranged between the transmission device 3 and the polymerization kettle 1, a stirring device 4 connected with the transmission device 3 is rotationally connected in the polymerization kettle 1, and a pressurizing assembly 5 for increasing the pressure of the polymerization reaction environment is embedded in the polymerization kettle 1 corresponding to the stirring device 4;

[0057] A vibration groove is formed in the bottom of the stirring device 4, and a vibration assembly 7 for providing exciting force to the polymerization reaction environment is connected to the bottom of the polymerization kettle 1 corresponding to the vibration groove.

[0058] Specifically, the polymerization kettle 1 includes an inner cylinder 101, a jacket 102 is sleeved on the outer wall of the inner cylinder 101, a spiral blade 103 is nested between the jacket 102 and the inner cylinder 101, a first input pipe 104 is communicated with one end of the jacket 102 corresponding to the spiral blade 103, a first output pipe 105 is communicated with the other end of the jacket 102 corresponding to the spiral blade 103, an exhaust hole is formed in the outer wall of the stirring device 4, an exhaust jacket 9 is rotationally connected to the outer wall of the stirring device 4 corresponding to the exhaust hole through two sealing bearings, a second output pipe is communicated with the outer wall of the exhaust jacket 9, and the other end of the second output pipe is communicated with the first input pipe 104.

[0059] The embodiment is specific: the air entering the driving box 701 passes through the pressure relief hole on the surface of the driving shaft 702 into the driving shaft 702, then flows into the stirring device 4 along the inner cavity of the driving shaft 702, and finally flows into the first input pipe 104 through the second output pipe, and then flows to the first output pipe 105 along the spiral blade 103. Since the temperature gradually increases from bottom to top inside the inner cylinder 101 corresponding to the lower part of the booster disc 501, the air flowing through the driving shaft 702 and the stirring device 4 will exchange heat through the stirring device 4, thereby reducing the influence of the temperature rise caused by the pressure increase. The air after heating flows downward along the spiral blade 103.

[0060] Specifically, the booster assembly 5 includes a booster disc 501 sleeved in the inner cylinder 101, the booster disc 501 is slidingly connected to the stirring device 4, and the outer wall of the booster disc 501 is provided with a sealing groove, and the sealing groove is sleeved with a sealing ring 502;

[0061] The two sides of the top of the booster disc 501 are connected with booster parts 503, and the two booster parts 503 engage with the same driving bevel gear 504, the driving bevel gear 504 is sleeved on the stirring device 4, the booster part 503 includes a mounting plate 5031 connected to the top of the inner cylinder 101, the other end of the mounting plate 5031 is rotatably connected with a special-shaped shaft 5032, the end of the special-shaped shaft 5032 is sleeved with a driven bevel gear 5033, the driven bevel gear 5033 and the driving bevel gear 504 are engaged with each other, the U-shaped node of the special-shaped shaft 5032 is rotatably sleeved with an adapter sleeve 5034, the adapter sleeve 5034 is sleeved with a rocker 5035, the other end of the rocker 5035 is rotatably connected with an adapter seat 5036 connected with the booster disc 501, the inner cylinder 101 and the jacket 102 are clamped with an air suction pipe above the booster disc 501, the other end of the air suction pipe is sleeved with a one-way flow blocking assembly 6, the one-way flow blocking assembly 6 includes a mounting disc 601 connected with the other end of the air suction pipe, the one end of the mounting disc 601 is sleeved with a filter disc 602, the other end of the mounting disc 601 is clamped with a sleeve 603, the sleeve 603 is clamped with a bucket-shaped cover 604, the bucket-shaped cover 604 is sleeved with a spherical valve 605, the other end of the spherical valve 605 is connected with a movable shaft 607, the other end of the movable shaft 607 is sleeved with a support disc 606 clamped in the sleeve 603, the movable shaft 607 is sleeved with a first spring 608, and the spherical valve 605 is elastically supported and connected with the support disc 606 through the first spring 608.

[0062] In the embodiment, when the stirring device 4 is in operation, the driving device 3 drives the stirring device 4 to work inside the inner cylinder 101, and the stirring device 4 drives the driving bevel gear 504 to rotate synchronously in the process of operation. The driving bevel gear 504 drives the driven bevel gear 5033, and the diameter of the driving bevel gear 504 is greater than that of the driven bevel gear 5033. Therefore, the driving bevel gear 504 drives the special-shaped shaft 5032 to move at an accelerated speed through the driven bevel gear 5033. The U-shaped node of the special-shaped shaft 5032 rotates from the lowest position to the highest position. The special-shaped shaft 5032 drives the rocker 5035 to generate upward pulling force through the adapter sleeve 5034. One end of the rocker 5035 drives the adapter sleeve 5034 to rotate at the U-shaped node of the special-shaped shaft 5032. The other end of the rocker 5035 rotates inside the adapter seat 5036 and drives the booster disc 501 to slide upward on the inner wall of the inner cylinder 101 through the adapter seat 5036. The U-shaped node of the special-shaped shaft 5032 rotates from the highest position to the lowest position. The special-shaped shaft 5032 drives the rocker 5035 to generate downward pushing force through the adapter sleeve 5034, thereby pushing the booster disc 501 to slide downward on the inner wall of the inner cylinder 101. The process is repeated in the above-mentioned manner. In the process, the sealing ring 502 in the sealing groove of the booster disc 501 can effectively increase the sealing performance of the connecting surface between the booster disc 501 and the inner wall of the inner cylinder 101. The downward sliding of the booster disc 501 increases the pressure intensity of the corresponding part below the booster disc 501 in the polymerization kettle 1. The upward sliding of the booster disc 501 gradually restores the pressure intensity of the corresponding part below the booster disc 501 in the polymerization kettle 1. According to the chemical kinetics principle, increasing the pressure can increase the collision frequency of reactant molecules, thereby accelerating the reaction rate.

[0063] Specifically, the vibration assembly 7 comprises a driving box 701 connected to the bottom of the jacket 102. The top of the driving box 701 is rotationally connected with a driving shaft 702. The end of the driving shaft 702 is sleeved with a driving wheel 703. The other end of the driving shaft 702 is sleeved with two vibration bearings 704. The driving shaft 702 is sleeved in the vibration groove through the two vibration bearings 704.

[0064] The outer wall of the driving box 701 is communicated with the second input pipe 8 in the tangential direction. The other end of the second input pipe 8 is communicated with the pressure relief pipe 10. The other end of the pressure relief pipe 10 is communicated with the inside of the inner cylinder 101. The driving shaft 702 is sleeved with an elastic plugging piece 706. The elastic plugging piece 706 comprises a fixed sleeve 7061 sleeved on the driving shaft 702. The outer wall of the fixed sleeve 7061 is provided with a plurality of slide grooves 7065 arranged in an annular array. The slide grooves 7065 are slidably connected with slide blocks 7062. The end of the slide block 7062 is connected with a second spring 7063. The slide block 7062 is elastically supported and connected with the inner end face of the slide groove 7065 through the second spring 7063. The outer wall of the fixed sleeve 7061 is sleeved with a plugging disc 7064. The inner wall of the plugging disc 7064 is connected with the slide block 7062. The top of the plugging disc 7064 abuts against the bottom of the stirring device 4.

[0065] The embodiment is specific: as the booster disc 501 continues to rise, the air pressure above it gradually rises, and then the one-way valve on the second input pipe 8 opens, high-pressure air flows into the drive box 701 along the second input pipe 8 and directly acts on the drive wheel 703. Since the air flows into the drive box 701 in the radial direction, it will be able to push the drive wheel 703 to rotate quickly to generate a rotating force. This rotating force is transmitted to the eccentric shaft 705 through the drive shaft 702, causing the eccentric shaft 705 to also rotate. Due to the design of the eccentric shaft 705, an eccentric force is generated. This centrifugal force causes the vibration bearing 704 and the stirring device 4 to produce reciprocating motion, thereby generating a vibration force. The vibration force directly acts on the inside of the polymerization reaction through the stirring device 4. Vibration causes air bubbles in the polymerization reactant to disperse, diffuse, or float to the surface.

[0066] Working principle, in use:

[0067] According to the performance requirements of the alkaline zinc-manganese battery separator, the types and proportions of olefin monomers, water, tackifiers and lubricants are determined. According to the formula proportion, accurately weigh the required olefin monomers, water, tackifiers and lubricants. First, inject water into the polymerization kettle 1, then slowly add the olefin monomers to the water, while stirring to promote dissolution, then add the tackifiers and lubricants in turn, continue to stir until completely dissolved, forming a uniform olefin monomer aqueous solution;

[0068] When stirring, the transmission 3 drives the stirring device 4 to work inside the inner cylinder 101. The stirring device 4 rotates synchronously with the driving bevel gear 504 during operation. The driving bevel gear 504 drives the driven bevel gear 5033 through the driving bevel gear 504. The diameter of the driving bevel gear 504 is larger than that of the driven bevel gear 5033. Therefore, the driving bevel gear 504 drives the special-shaped shaft 5032 to move at an accelerated speed through the driven bevel gear 5033. The U-shaped node of the special-shaped shaft 5032 rotates from the lowest point to the highest point. The special-shaped shaft 5032 generates upward pulling force on the rocker 5035 through the adapter sleeve 5034. One end of the rocker 5035 drives the adapter sleeve 5034 to rotate at the U-shaped node of the special-shaped shaft 5032. The other end of the rocker 5035 rotates inside the adapter seat 5036 and pulls the booster disc 501 to slide upward on the inner wall of the inner cylinder 101. The U-shaped node of the special-shaped shaft 5032 rotates from the highest point to the lowest point. The special-shaped shaft 5032 generates downward pushing force on the rocker 5035 through the adapter sleeve 5034, which in turn pushes the booster disc 501 to slide downward on the inner wall of the inner cylinder 101. The process is repeated in this way. During this process, the sealing ring 502 in the sealing groove of the booster disc 501 can effectively increase the sealing performance of the connecting surface between the booster disc 501 and the inner wall of the inner cylinder 101. The downward sliding of the booster disc 501 increases the pressure intensity of the corresponding part below the booster disc 501 inside the polymerization kettle 1. The upward sliding of the booster disc 501 gradually restores the pressure intensity of the corresponding part below the booster disc 501 inside the polymerization kettle 1. According to the principle of chemical dynamics, increasing the pressure can increase the collision frequency of reactant molecules, thereby accelerating the reaction rate.

[0069] As the booster plate 501 descends, the air pressure above it decreases. A one-way valve installed on the second input pipe 8 is closed at this time. Under the influence of low pressure, the ball valve 605 moves towards the inner cylinder 101. During this process, the ball valve 605 pushes the movable shaft 607 to slide inside the support plate 606 and compresses the first spring 608, causing it to elastically deform. After the ball valve 605 disengages from the funnel-shaped cover 604, air passes through the filter plate 602 and enters the inner cylinder 101. During the upward movement of the booster plate 501, the first spring 608 performs an elastic reset movement, pushing the ball valve 605 back into the funnel-shaped cover 604. As the booster plate 501 continues to rise, the air pressure above it gradually decreases. The pressure rises, and then the one-way valve on the second input pipe 8 opens, allowing high-pressure air to flow into the drive box 701 through the second input pipe 8 and act directly on the drive wheel 703. Since the air flows into the drive box 701 in the radial direction, it can drive the drive wheel 703 to rotate rapidly and generate rotational force. This rotational force is transmitted to the eccentric shaft 705 through the drive shaft 702, causing the eccentric shaft 705 to rotate as well. Due to the design of the eccentric shaft 705, an eccentric force is generated. This centrifugal force causes the vibration bearing 704 and the stirring device 4 to reciprocate, thereby generating vibration force. The vibration force acts directly on the inside of the polymerization reaction through the stirring device 4, and the vibration causes the air bubbles in the polymerization reaction to disperse, diffuse, or float to the surface.

[0070] Air entering the drive box 701 enters the drive shaft 702 through the pressure relief hole on the surface of the drive shaft 702, then flows into the stirring device 4 along the inner cavity of the drive shaft 702, and finally flows into the first input pipe 104 through the second output pipe, and then flows along the spiral blade 103 towards the first output pipe 105. Since the temperature inside the inner cylinder 101 gradually increases from bottom to top below the pressure plate 501, and the air undergoes heat exchange through the stirring device 4 during the flow of the drive shaft 702 and the stirring device 4, the effect of the temperature rise caused by the pressure boost can be reduced.

[0071] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A process for the preparation of separator for alkaline zinc-manganese batteries, characterized in that, It comprises the following steps: Selection and treatment of substrate; Preparation of aqueous solution of olefin monomer: the aqueous solution of olefin monomer contains anionic group-containing olefin monomer, water, tackifier and wetting agent, the mass concentration of olefin monomer is between 5%-40%, the mass percentage of water is 70%-89%, the anionic group-containing olefin monomer is 10%-29%, and the addition amount of tackifier and wetting agent is adjusted according to specific requirements; Adsorption of olefin monomer solution on non-woven substrate; Electron beam irradiation; Post-treatment, removing homopolymer and unreacted monomer by water washing, and then removing water by drying; The equipment for preparing aqueous solution of olefin monomer comprises a polymerization kettle (1), a transmission device (3) is installed at the top of the polymerization kettle (1), a mechanical seal (2) is arranged between the transmission device (3) and the polymerization kettle (1), a stirring device (4) connected with the transmission device (3) is rotatably connected in the polymerization kettle (1), and a pressurizing assembly (5) for increasing the pressure of the polymerization reaction environment is embedded in the polymerization kettle (1) corresponding to the stirring device (4); A vibration groove is formed in the bottom of the stirring device (4), and a vibration assembly (7) for providing exciting force to the polymerization reaction environment is connected to the bottom of the polymerization kettle (1) corresponding to the vibration groove; The polymerization kettle (1) comprises an inner cylinder (101), a jacket (102) is sleeved on the outer wall of the inner cylinder (101), a spiral blade (103) is nested between the jacket (102) and the inner cylinder (101), a first input pipe (104) is communicated with one end of the jacket (102) corresponding to the spiral blade (103), and a first output pipe (105) is communicated with the other end of the jacket (102) corresponding to the spiral blade (103); An exhaust hole is formed in the outer wall of the stirring device (4), an exhaust jacket (9) is rotatably connected to the outer wall of the stirring device (4) corresponding to the exhaust hole through two sealing bearings, a second output pipe is communicated with the outer wall of the exhaust jacket (9), and the other end of the second output pipe is communicated with the first input pipe (104); The pressurizing assembly (5) comprises a pressurizing disc (501) sleeved in the inner cylinder (101), and an air suction pipe is clamped on the upper part of the inner cylinder (101) and the jacket (102) corresponding to the pressurizing disc (501); The vibration assembly (7) comprises a drive box (701) connected to the bottom of the jacket (102), a drive shaft (702) is rotatably connected to the top of the drive box (701), a drive wheel (703) is sleeved on the end of the drive shaft (702), two vibration bearings (704) are sleeved on the other end of the drive shaft (702), and the drive shaft (702) is sleeved in the vibration groove through the two vibration bearings (704); A second input pipe (8) is communicated with the outer wall of the drive box (701) in the tangential direction, a pressure relief pipe (10) is communicated with the other end of the second input pipe (8), and the other end of the pressure relief pipe (10) is communicated with the inside of the inner cylinder (101).

2. The alkaline zinc-manganese battery separator preparation process according to claim 1, characterized in that, The booster disc (501) is slidingly connected to the stirring device (4), and a sealing groove is formed in the outer wall of the booster disc (501), and a sealing ring (502) is sleeved in the sealing groove; Both sides of the top of the booster disc (501) are connected with booster parts (503), and the two booster parts (503) engage with the same driving bevel gear (504), and the driving bevel gear (504) is sleeved on the stirring device (4).

3. The alkaline zinc-manganese battery separator preparation process according to claim 2, characterized in that, The booster part (503) comprises a mounting plate (5031) connected to the inner top of the inner cylinder (101), the other end of the mounting plate (5031) is rotatably connected with a special-shaped shaft (5032), the end of the special-shaped shaft (5032) is sleeved with a driven bevel gear (5033), the driven bevel gear (5033) and the driving bevel gear (504) are engaged with each other, the U-shaped node of the special-shaped shaft (5032) is rotatably sleeved with an adapter sleeve (5034), the adapter sleeve (5034) is sleeved with a rocker (5035), the other end of the rocker (5035) is rotatably connected with an adapter seat (5036) connected with the booster disc (501).

4. The alkaline zinc-manganese battery separator production process according to claim 3, characterized by, The other end of the air suction pipe is sleeved with a one-way cut-off assembly (6), the one-way cut-off assembly (6) comprises a mounting disc (601) connected to the other end of the air suction pipe, a filter disc (602) is sleeved in one end of the mounting disc (601), a sleeve (603) is clamped in the other end of the mounting disc (601), a bucket-shaped cover (604) is clamped in the sleeve (603), a spherical valve (605) is sleeved in the bucket-shaped cover (604), the other end of the spherical valve (605) is connected with a movable shaft (607), the other end of the movable shaft (607) is sleeved with a supporting disc (606) clamped in the sleeve (603), a first spring (608) is sleeved on the movable shaft (607), and the spherical valve (605) is elastically supported and connected with the supporting disc (606) through the first spring (608).

5. The alkaline zinc-manganese battery separator production process according to claim 4, characterized by, The driving shaft (702) is sleeved with an elastic blocking part (706), the elastic blocking part (706) comprises a fixed sleeve (7061) sleeved on the driving shaft (702), a plurality of sliding grooves (7065) in annular array are formed in the outer wall of the fixed sleeve (7061), a sliding block (7062) is slidingly connected in the sliding groove (7065), a second spring (7063) is connected to the end of the sliding block (7062), the sliding block (7062) is elastically supported and connected with the end face in the sliding groove (7065) through the second spring (7063), a blocking disc (7064) is sleeved on the outer wall of the fixed sleeve (7061), the inner wall of the blocking disc (7064) is connected with the sliding block (7062), and the top of the blocking disc (7064) abuts against the bottom of the stirring device (4).

Images