Microwave high-pressure synergistic mica paper binder mixing equipment

The mica paper binder mixing equipment, which combines microwave and high pressure, utilizes a wedge-shaped extrusion zone design with a microwave heater and an elastic scraper to solve the problems of material adhesion and accumulation, achieving efficient and uniform mixing and improving product quality.

CN121732014AActive Publication Date: 2026-03-27TONGCHENG ZHONGTIAN MICA PROD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-26
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

In existing mixing equipment, materials tend to stick to the inner wall of the tank during the heating process, and viscous materials accumulate on the scraper body, affecting the mixing effect and product consistency.

Method used

A microwave-high-pressure hybrid device is used, which combines a microwave heater with an elastic scraper. The design of the wedge-shaped extrusion zone achieves intermittent top pressure and shearing action. Combined with dynamic guide channels and guide blocks, it constructs composite convection and forms a three-dimensional strong shear flow field.

Benefits of technology

It effectively prevents material adhesion, improves heating uniformity and mixing efficiency, enhances scraping force, and ensures consistent product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of mixing equipment, in particular to microwave high-pressure synergistic mica paper binder mixing equipment. Comprising a support, a transversely-arranged mixing tank is installed on the support, a main motor is installed on the support, the output end of the main motor is connected with a stirring shaft extending into the mixing tank, a booster pump is installed on the support, the output end of the booster pump extends into the mixing tank, and a microwave heater is installed at the top of the mixing tank. The microwave output end of the microwave heater faces the interior of the mixing tank; the outer wall of the stirring shaft is connected with a stirring paddle; the stirring paddle is connected with an elastic scraping plate; by integrating the microwave bulk phase heating and pressurizing environment, wall surface bonding and bubble generation are prevented from the source, the elastic scraping plate has a periodic self-cleaning function, attachments on the scraping plate and the tank wall can be powerfully removed, secondary accumulation is reduced, a high-strength change flow field is formed by combining the dynamic flow guide design, and efficient dispersion of materials is achieved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mixing equipment, in particular to a microwave and high pressure coordinated mica paper adhesive mixing equipment. BACKGROUND

[0002] Mica paper adhesive is a special adhesive system for bonding and packaging mica flakes, which is usually composed of high-temperature resistant resin (such as organic silicon, epoxy), inorganic filler, curing agent and solvent. Its core feature is that it must have excellent electrical insulation, high heat resistance (up to H level or higher), good adhesive strength and stable chemical inertness, and is widely used in high-temperature insulation fields such as motors and electric heating elements.

[0003] In the production of the adhesive, mixing equipment is needed to disperse and fuse the components efficiently and uniformly. It is found in practice that moderate heating can effectively reduce the viscosity of the material and promote molecular diffusion, thereby significantly improving the mixing efficiency. However, heating also exacerbates the adhesion and skinning of the material on the inner wall of the mixing tank. Although the traditional scraper can remove most of the wall attachments, the viscous material scraped off often accumulates on the scraper body and its root, forming secondary retention, which not only reduces the wall scraping effect, but also may cause the pre-solidification of the raw material due to local overheating, affecting the consistency and performance of the final product. SUMMARY

[0004] The present application provides a microwave and high pressure coordinated mica paper adhesive mixing equipment, which solves the problems raised in the above background technology by using a microwave heater and an elastic scraper that can deform reciprocally, i.e. the material is easy to adhere to the inner wall of the tank, and the viscous material accumulates on the scraper body.

[0005] To achieve the above purpose, the microwave and high pressure coordinated mica paper adhesive mixing equipment comprises a support, a horizontally arranged mixing tank mounted on the support, a main motor mounted on the support, an output end of the main motor connected with a stirring shaft extending into the mixing tank, a booster pump mounted on the support, an output end of the booster pump extending into the mixing tank, a microwave heater mounted on the top of the mixing tank, a microwave output end of the microwave heater facing the inside of the mixing tank; an outer wall of the stirring shaft is connected with a stirring paddle, the stirring paddle is connected with an elastic scraper, the end of the elastic scraper is obliquely abutted against the inner wall of the mixing tank, forming a wedge-shaped extrusion zone between the scraper and the inner wall of the mixing tank; a top pressure driving part is provided on the stirring shaft for driving the elastic scraper to deform elastically and press against the inner wall of the mixing tank intermittently, when the top pressure driving part drives the scraper to press, the volume of the wedge-shaped extrusion zone gradually decreases, producing extrusion and shearing effect on the retained material, when the top pressure driving part drives the scraper to reset, the volume of the wedge-shaped extrusion zone gradually increases, producing local negative pressure to promote the backfilling of new material to the wedge-shaped extrusion zone.

[0006] In the above technical solution, the top pressure driving part includes a strip-shaped plate slidingly installed along the radial direction of the stirring paddle, the scraper is fixedly installed at the outer side end of the strip-shaped plate, the stirring shaft is internally provided with an axially extending cavity, the inner side end of the strip-shaped plate extends into the cavity, and a plurality of circumferentially distributed top blocks are arranged in the cavity; the inner side end of the strip-shaped plate is connected with a protrusion corresponding to the top blocks; when the stirring shaft rotates, the plurality of top blocks periodically press the protrusions; the outer wall of the mixing tank is connected with an inner rod extending into the cavity, and the plurality of top blocks are all connected to the outer wall of the inner rod for intermittently pressing the inner wall of the mixing tank by the elastic scraper.

[0007] Based on the above, the main body of the stirring paddle is in a flat plate structure, a plurality of first flow guide grooves penetrating the back are formed on the stress surface of the main body facing the material, when the stirring shaft drives the stirring paddle to rotate, the material entering the first flow guide grooves flows in the axial direction of the mixing tank under the guidance of the groove wall, a plurality of second flow guide grooves opposite to the first flow guide grooves are formed on the stirring paddle, when the stirring shaft drives the stirring paddle to rotate, the material entering the second flow guide grooves flows in the direction of the inner wall of the mixing tank under the guidance of the groove wall, so that the stirring paddle has better mixing capacity.

[0008] Secondly, a plurality of equally spaced grooves are formed on the strip-shaped plate along the length direction of the strip-shaped plate; when the strip-shaped plate slides, the grooves can be individually aligned with the output ends of the first flow guide grooves, individually aligned with the output ends of the second flow guide grooves, or simultaneously aligned with the output ends of both, so that the material flow field has continuous direction and intensity changes.

[0009] Further, a plurality of guide blocks are fixedly connected to the stress surface of the stirring paddle, each guide block has two symmetrically arranged guide inclined surfaces, and the two guide inclined surfaces together form a wedge-shaped flow guide structure; when the guide blocks rotate with the stirring paddle, the guide inclined surfaces can divert the incoming material to both sides of the stirring paddle, so as to guide the raw material into the area between the axially adjacent stirring paddles.

[0010] Therefore, by integrating microwave bulk heating and pressurized environment, wall sticking and bubble generation are prevented from the source, the elastic scraper has a periodic self-cleaning function, can strongly remove the attached materials on itself and the tank wall, reduces secondary accumulation, and combines with the dynamic flow guide design to form a high-intensity variable flow field and realize efficient dispersion of the material.

[0011] Compared with the prior art, the beneficial effects of the present application are:

[0012] 1. In this microwave-high pressure co-processed mica paper binder mixing equipment, the raw materials in the mixing tank are heated by a microwave heater, resulting in better heating uniformity. The inner wall of the mixing tank is less likely to experience localized overheating, which could lead to adhesion, thus ensuring the final quality of the mica binder. The booster pump increases the pressure inside the mixing tank, and the pressurized environment makes it less likely for the raw materials to generate air bubbles, improving the penetration efficiency between the raw materials. Combined with the microwave heating environment, this results in better mixing of the mica binder.

[0013] 2. In this microwave high-pressure synergistic mica paper binder mixing equipment, the elastic scraper is driven to intermittently press against the tank wall. During the pressing stage, the volume of the wedge-shaped extrusion zone decreases, generating strong shearing and extrusion effects on the material in the zone. On the one hand, it forcibly squeezes out the raw materials that may adhere to the outer wall of the scraper, preventing them from accumulating for a long time and affecting the scraping effect. On the other hand, it also instantly increases the contact pressure between the scraper and the tank wall, enhancing the scraping force.

[0014] 3. In this microwave high-pressure synergistic mica paper binder mixing device, the first guide channel, the second guide channel and the guide block work together to construct axial and radial composite convection, while the dynamic grooving of the strip plate periodically changes the flow channel, forming a constantly changing three-dimensional strong shear flow field, which fundamentally improves the dispersion efficiency and mixing uniformity. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the mixing tank of the present invention;

[0018] Figure 4 This is a partial top view of the structure of the present invention;

[0019] Figure 5 For the present invention Figure 4 Schematic diagram of the AA section structure;

[0020] Figure 6 This is a schematic diagram of the strip plate in its working state according to the present invention. Figure 1 ;

[0021] Figure 7 This is a schematic diagram of the strip plate in its working state according to the present invention. Figure 2 ;

[0022] Figure 8 This is a cross-sectional view of the stirring shaft structure of the present invention.

[0023] The meanings of the labels in the diagram are as follows:

[0024] 1, support; 2, mixing tank; 3, main motor; 4, microwave heater; 5, booster pump; 6, stirring shaft; 7, stirring paddle; 8, second flow guide groove; 9, first flow guide groove; 10, guide block; 11, guide slope; 12, feed channel; 13, strip plate; 14, slot; 15, cavity; 16, inner rod; 17, top block; 18, protrusion; 19, scraper; 20, wedge-shaped extrusion area; 21, auxiliary motor; 22, feed inlet; 23, discharge outlet. DETAILED DESCRIPTION

[0025] The technical solutions in the present application will be described clearly and completely below with reference to the drawings in 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 work fall within the scope of protection of the present application.

[0026] It is found in practice that moderate heating can effectively reduce the viscosity of the material and promote molecular diffusion, thereby significantly improving the mixing efficiency. However, heating also aggravates the adhesion and skinning of the material on the inner wall of the mixing tank. Although the traditional scraper can remove most of the wall attachments, the viscous material scraped off often reaccumulates at the body and root of the scraper, forming secondary retention, which not only reduces the wall scraping effect, but also may cause the pre-solidification of the raw material due to local overheating, thereby affecting the consistency and performance of the final product.

[0027] Therefore, in view of the above problems, the present application shows a microwave high-pressure collaborative mica paper adhesive mixing equipment, as shown in Figures 1-3 The present application shows a microwave high-pressure collaborative mica paper adhesive mixing equipment, as shown in

[0028] When the mixed binder raw materials are needed, the raw materials are added into the mixing tank 2 from the feeding port 22, and then the whole device is started. After starting, the main motor 3 drives the stirring shaft 6 to continuously rotate, and the stirring shaft 6 drives the stirring paddle 7 to stir the raw materials in the mixing tank 2. During this period, the microwave heater 4 heats the raw materials in the mixing tank 2 by microwaves, which has better heating uniformity. The inner wall of the mixing tank 2 is less likely to be locally overheated to cause sticking phenomenon, which ensures the final quality of the mica binder. The booster pump 5 increases the pressure in the mixing tank 2. The pressurized environment makes the raw materials less likely to produce bubbles, improves the penetration efficiency between the raw materials, and cooperates with the microwave heating environment to make the mica binder stirring effect better. In addition, the elastic scraper 19 moves synchronously with the stirring paddle 7. The scraper 19 continuously scrapes the inner wall of the mixing tank 2, so that the raw materials are less likely to accumulate and stick to the inner wall of the mixing tank 2.

[0029] Referring to Figures 5-7 As shown, the end of the elastic scraper 19 is obliquely abutted against the inner wall of the mixing tank 2, so that a wedge-shaped extrusion area 20 is formed between the scraper 19 and the inner wall of the mixing tank 2. The stirring shaft 6 is provided with a pressing driving part for driving the elastic scraper 19 to be elastically pressed and deformed towards the inner wall of the mixing tank 2 intermittently. When the pressing driving part drives the scraper 19 to be pressed, the volume of the wedge-shaped extrusion area 20 gradually decreases to produce extrusion and shearing effect on the stagnant material. When the pressing driving part drives the scraper 19 to reset, the volume of the wedge-shaped extrusion area 20 gradually increases to produce local negative pressure to promote the backfilling of new material to the wedge-shaped extrusion area 20.

[0030] During the microwave heating process, standing waves are formed in the cavity, which produces fixed energy "hot spots". The tank wall regions located at or periodically passing through these hot spots continuously bear higher energy density, which becomes the preferred position for sticking and solidification initiation. Even if the overall average temperature is not high, the local position of the tank wall will produce accumulation and sticking phenomenon.

[0031] To this end, during the continuous scraping of the scraper 19, the material peeled off from the inner wall of the mixing tank 2 by the end of the scraper 19 first enters the wedge-shaped extrusion area 20 and is then discharged from the area, while the top pressing driving part intermittently drives the elastic scraper 19 to press against the tank wall, and during the pressing stage, the volume of the wedge-shaped extrusion area 20 is reduced, which produces strong shearing and extrusion on the material in the area, on the one hand, the raw material that may be attached to the outer wall of the scraper 19 is forced out, preventing long-term accumulation and affecting the scraping effect, and on the other hand, the bubbles attached to the inner wall are pressed or extruded out, and on the other hand, the contact pressure between the scraper 19 and the tank wall is instantaneously increased, thereby enhancing the scraping force; during the reset stage, the volume of the wedge-shaped extrusion area 20 is increased, and the local pressure is reduced, which is beneficial to the inflow of newly peeled raw materials, and through such periodic "pressing-reset" movement, the scraper 19 realizes automatic cleaning of the material adhered to the outer wall of the scraper 19, and dynamically adjusts the acting pressure with the tank wall, thereby improving the adaptability and sustainability of the scraping effect as a whole.

[0032] Referring to Figures 5-7 As shown, the top pressing driving part includes a strip-shaped plate 13 slidingly installed along the radial direction of the stirring paddle 7, the strip-shaped plate 13 is tightly attached to the non-stressed surface of the stirring paddle 7, the scraper 19 is fixedly installed at the outer side end of the strip-shaped plate 13, the stirring shaft 6 is internally provided with an axially extending cavity 15, the inner side end of the strip-shaped plate 13 extends into the cavity 15, and a plurality of top blocks 17 are arranged in the cavity 15; the inner side end of the strip-shaped plate 13 is connected with a protrusion 18 corresponding to the top blocks 17, the protrusion 18 and the top blocks 17 are both semicircular in shape, when the stirring shaft 6 rotates, the plurality of top blocks 17 periodically press against the protrusion 18, and the outer wall of the mixing tank 2 is connected with an inner rod 16 extending into the cavity 15, and the plurality of top blocks 17 are all connected to the outer wall of the inner rod 16.

[0033] When the stirring shaft 6 drives the stirring paddle 7 to rotate, the strip-shaped plate 13 moves synchronously with the stirring paddle 7, so that the protrusion 18 on the strip-shaped plate 13 moves in a circular manner around the plurality of top blocks 17 arranged fixedly, when the protrusion 18 moves to be aligned with one of the top blocks 17, the top block 17 generates a radial thrust force on the protrusion 18, driving the strip-shaped plate 13 to slide transversely along the stirring paddle 7, and in turn pressing the elastic scraper 19 against the inner wall of the mixing tank 2, when the protrusion 18 moves away from the contact with the top block 17, the pressing force acting on the elastic scraper 19 disappears, the scraper 19 resets under the action of its own elasticity, and in turn pushes the strip-shaped plate 13 to slide back to the initial position, and the arrangement of the plurality of top blocks 17 enables the strip-shaped plate 13 to slide back and forth along the surface of the stirring paddle 7.

[0034] Referring to Figures 1-2In another example, the outer wall of the mixing tank 2 is fixedly installed with a sub-motor 21, which has a higher rotating speed than the main motor 3 or has a reverse rotating direction with the main motor 3. The output end of the sub-motor 21 is fixedly connected with the inner rod 16.

[0035] In use, the sub-motor 21 is started to drive the inner rod 16 to rotate, thereby driving the plurality of top blocks 17 fixedly connected thereto to rotate synchronously. By adjusting the rotating speed of the sub-motor 21, the meeting frequency of the top blocks 17 and the protrusions 18 can be changed, thereby controlling the reciprocating rate of the top pressure of the elastic scraper 19 to the inner wall of the mixing tank 2. This design realizes dynamic adjustment of the scraping frequency, so that the device can adaptively optimize the scraping strength and cleaning effect according to the adhesion characteristics of different materials.

[0036] Referring to Figure 6 As shown, the main body of the stirring paddle 7 is a flat plate structure, and a plurality of first flow guide grooves 9 penetrating the back are formed on the stress receiving surface facing the material. When the stirring shaft 6 drives the stirring paddle 7 to rotate, the material entering the first flow guide grooves 9 flows in the axial direction of the mixing tank 2 under the guidance of the groove wall. Figure 7 As shown, a plurality of second flow guide grooves 8 opposite to the first flow guide grooves 9 are formed on the stirring paddle 7. When the stirring shaft 6 drives the stirring paddle 7 to rotate, the material entering the second flow guide grooves 8 flows in the direction of the inner wall of the mixing tank 2 under the guidance of the groove wall. The included angle between the first flow guide grooves 9 and the second flow guide grooves 8 is greater than or equal to 90°.

[0037] When the stirring paddle 7 continuously stirs in the mixing tank 2, part of the raw material enters the first flow guide grooves 9 and flows in the axial direction of the mixing tank 2 along the inclined direction thereof. At the same time, another part of the raw material enters the second flow guide grooves 8 and flows in the opposite direction towards the inner wall region of the mixing tank 2. The material flows in opposite directions generated by the first flow guide grooves 9 and the second flow guide grooves 8 intersect and shear with each other in the mixing tank 2, forming a strong axial and radial compound convection, thereby significantly enhancing the mixing effect of the raw material.

[0038] Referring to Figures 5-7 As shown, the plurality of first flow guide grooves 9 and the second flow guide grooves 8 are arranged in a staggered manner on the plate surface of the stirring paddle 7. The first flow guide grooves 9 and the adjacent second flow guide grooves 8 together form a flow guide unit.

[0039] During stirring, the raw material flowing out of the first flow guide grooves 9 directly intersects with the raw material flowing out of the adjacent second flow guide grooves 8 in the vicinity of the stirring paddle 7. The continuous collision and shearing of the adjacent opposite flows form a high-intensity mixing zone, thereby effectively guaranteeing and improving the overall mixing effect.

[0040] Referring to Figures 5-7As shown, the strip-shaped plate 13 is provided with a plurality of equidistantly distributed grooves 14 along its length direction, and the opening area of the grooves 14 is greater than or equal to the sum of the opening areas of the first flow guide groove 9 and the second flow guide groove 8; when the strip-shaped plate 13 slides, the grooves 14 can be individually aligned with the output end of the first flow guide groove 9, individually aligned with the output end of the second flow guide groove 8, or simultaneously aligned with the output ends of both, so as to dynamically switch the flow guide and convergence paths of the materials.

[0041] During stirring, the reciprocating strip-shaped plate 13 dynamically changes the alignment state of the grooves 14 and the flow guide grooves: when the grooves 14 are individually communicated with the first flow guide groove 9 (as shown in Figure 6 , the raw materials are mainly guided to the axis direction of the mixing tank 2; when they are individually communicated with the second flow guide groove 8 (as shown in Figure 7 , the raw materials are mainly guided to the inner wall direction of the mixing tank 2; when the grooves 14 are simultaneously communicated with the first flow guide groove 9 and the second flow guide groove 8, the two opposite raw material flows directly converge and mix at the grooves 14. Through the continuous reciprocating movement of the strip-shaped plate 13, the flow guide direction and the convergence state of the grooves 14 are periodically switched, so that the direction and intensity of the material flow field are continuously changed, thereby breaking the mixing steady state and further improving the uniformity and efficiency of the mixing.

[0042] As shown in Figure 8 , a plurality of guide blocks 10 are fixedly connected to the force receiving surface of the stirring paddle 7, each of the guide blocks 10 is provided with two symmetrically arranged guide inclined surfaces 11, and the two guide inclined surfaces 11 together form a wedge-shaped flow guide structure, and the outer shape of the guide block 10 is similar to a triangle; when the guide block 10 rotates with the stirring paddle 7, the guide inclined surfaces 11 can divert the incoming materials to both sides of the stirring paddle 7.

[0043] During stirring, the guide blocks 10 fixed on the stirring paddle 7 divert the incoming raw materials to both sides of the axis of the stirring shaft 6 through the symmetrically arranged guide inclined surfaces 11, which guides the raw materials into the area between the axially adjacent stirring paddles 7, forming axial circulation. The axial flow and the radial flow generated by the first flow guide groove 9 and the second flow guide groove 8 are coupled with each other, and a complex three-dimensional convection field is formed in the mixing tank 2, thereby significantly improving the mixing strength and uniformity of the raw materials.

[0044] As shown in Figure 6 and Figure 7 , a feeding channel 12 is formed between the two adjacent guide blocks 10, and the inlet ends of the first flow guide groove 9 and the second flow guide groove 8 are located in the feeding channel 12. During the stirring process of the guide block 10 following the stirring paddle 7, the raw materials enter the first flow guide groove 9 and the second flow guide groove 8 through the feeding channel 12.

[0045] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A microwave high-pressure co-processed mica paper adhesive mixing device, comprising a support (1), a horizontally arranged mixing tank (2) mounted on the support (1), a main motor (3) mounted on the support (1), and a stirring shaft (6) extending into the mixing tank (2) connected to the output end of the main motor (3), characterized in that: A booster pump (5) is installed on the bracket (1), the output end of the booster pump (5) extends into the mixing tank (2), a microwave heater (4) is installed on the top of the mixing tank (2), and the microwave output end of the microwave heater (4) faces the inside of the mixing tank (2); The outer wall of the stirring shaft (6) is connected to the stirring paddle (7), and the stirring paddle (7) is connected to the elastic scraper (19). The end of the elastic scraper (19) is inclined to abut against the inner wall of the mixing tank (2), so that a wedge-shaped extrusion zone (20) is formed between the scraper (19) and the inner wall of the mixing tank (2). The stirring shaft (6) is provided with a top pressure drive unit, which is used to drive the elastic scraper (19) to intermittently undergo elastic top pressure deformation towards the inner wall of the mixing tank (2). When the top pressure drive unit drives the scraper (19) to press, the volume of the wedge-shaped extrusion zone (20) gradually decreases, generating extrusion and shearing action on the retained material. When the top pressure drive unit drives the scraper (19) to reset, the volume of the wedge-shaped extrusion zone (20) gradually increases, generating local negative pressure to promote the backfilling of new material into the wedge-shaped extrusion zone (20).

2. The microwave high-voltage synergistic mica paper binder mixing device according to claim 1, characterized in that: The top pressure drive unit includes a strip plate (13) that is radially slidably installed along the stirring paddle (7). The scraper (19) is fixedly installed on the outer end of the strip plate (13). The stirring shaft (6) has an axially extending cavity (15) inside. The inner end of the strip plate (13) extends into the cavity (15). A plurality of circumferentially distributed top blocks (17) are provided in the cavity (15). The inner end of the strip plate (13) is connected to a protrusion (18) corresponding to the top block (17). When the stirring shaft (6) rotates, the multiple top blocks (17) periodically press against the protrusion (18).

3. The microwave high-voltage synergistic mica paper binder mixing device according to claim 2, characterized in that: The outer wall of the mixing tank (2) is connected to an inner rod (16) extending into the cavity (15), and a plurality of top blocks (17) are connected to the outer wall of the inner rod (16).

4. The microwave high-voltage synergistic mica paper binder mixing device according to claim 3, characterized in that: An auxiliary motor (21) is fixedly installed on the outer wall of the mixing tank (2), and the output end of the auxiliary motor (21) is fixedly connected to the inner rod (16).

5. The microwave high-voltage synergistic mica paper binder mixing device according to claim 1, characterized in that, The main body of the stirring paddle (7) is a flat plate structure. Multiple first guide grooves (9) extending to the back are provided on the force-bearing surface facing the material. When the stirring shaft (6) drives the stirring paddle (7) to rotate, the material entering the first guide groove (9) flows towards the axis of the mixing tank (2) under the guidance of the groove wall.

6. The microwave high-voltage synergistic mica paper binder mixing device according to claim 5, characterized in that: The stirring paddle (7) has multiple second guide channels (8) that are opposite in direction to the first guide channel (9). When the stirring shaft (6) drives the stirring paddle (7) to rotate, the material entering the second guide channel (8) flows towards the inner wall of the mixing tank (2) under the guidance of the channel wall.

7. The microwave high-voltage synergistic mica paper binder mixing device according to claim 6, characterized in that: Multiple first guide channels (9) and second guide channels (8) are arranged alternately on the plate surface of the stirring paddle (7), and the first guide channels (9) and the adjacent second guide channels (8) together form a guide unit.

8. The microwave high-voltage synergistic mica paper binder mixing device according to claim 2, characterized in that: The strip plate (13) has multiple equally spaced slots (14) along its length direction; when the strip plate (13) slides, the slots (14) can be aligned with the output end of the first guide groove (9) individually, aligned with the output end of the second guide groove (8) individually, or aligned with the output ends of both simultaneously.

9. The microwave high-voltage synergistic mica paper binder mixing device according to claim 8, characterized in that: Multiple guide blocks (10) are fixedly connected to the force-bearing surface of the stirring paddle (7). Each guide block (10) has two symmetrically arranged guide slopes (11). The two guide slopes (11) together form a wedge-shaped flow guiding structure. When the guide block (10) rotates with the stirring paddle (7), the guide slopes (11) can divert the incoming material to both sides of the stirring paddle (7).

10. The microwave high-voltage synergistic mica paper binder mixing device according to claim 9, characterized in that: A feeding channel (12) is formed between two adjacent guide blocks (10), and the inlet ends of the first guide groove (9) and the second guide groove (8) are both located in the feeding channel (12).

Citation Information

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