A high viscosity material polymerization stirring device

Abstract

The present invention relates to the technical field of high-viscosity material stirring, and specifically to a high-viscosity material polymerization stirring device, comprising a sealed stirring tank, wherein the top and bottom of the sealed stirring tank are respectively provided with a closed top plate and a closed base, and further comprising: an external stirrer, which is provided inside the closed stirring tank, and the middle of the external stirrer is symmetrically provided with an external stirring blade, and the external stirring blade is an inclined arc structure. The present invention provides an internal stirrer and an external stirrer that are nested with each other, and the internal stirrer and the external stirrer have similar structures, both of which are centerless stirring shaft structures, thereby avoiding the problem of high-viscosity polymerization system holding the shaft. At the same time, the internal stirring blade and the external stirring blade are respectively an upward-turning rotating structure and a downward-pressing rotating structure, which facilitates the enhancement of flow, mixing and shearing when stirring the material, and is conducive to improving the efficiency and uniformity of stirring. The stirring device is suitable for the polymerization reaction process of high-viscosity materials.

Description

Technical Field

[0001] The invention relates to the technical field of material stirring, in particular to a high-viscosity material polymerization stirring device. Background Art

[0002] High-viscosity materials refer to fluid substances with a viscosity much greater than that of water. They have great flow resistance and require special equipment and methods for transportation and processing. Ordinary mixing equipment is difficult to mix and process them.

[0003] The patent application number CN201210429699.4 discloses a stirring device for high-viscosity materials, including a stirring tank and an agitator arranged in the stirring tank; the agitator includes a driving motor, a rotating shaft and two or more stirring paddles arranged on the rotating shaft; the stirring paddle includes a hub fixedly connected to the rotating shaft and a plurality of blades fixed on the circumference of the hub, each blade includes a steel pipe and a first paddle and a second paddle welded on both sides of the steel pipe, the steel pipe is provided with a plurality of air holes for introducing gas, and the air holes are connected to an air source arranged outside the stirring tank; an angle is set between the first paddle and the second paddle, and the opening direction of the angle is upward, that is, toward the driving motor, so that when the stirring paddle is driven to rotate, an upward axial force is generated to stir the material, thereby further improving the axial stirring effect.

[0004] However, the stirring paddle is driven by a rotating shaft to rotate and stir the materials, and most polymers are non-Newtonian fluids. When there is a central stirring shaft, the Weissenberg effect will occur, which will cause the high-viscosity polymerization system to stick to the shaft, resulting in hysteresis of the materials in the central rotating shaft, making it difficult to mix and stir evenly, and the stirring efficiency and uniformity are low. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to propose a high-viscosity material polymerization stirring device to solve the problem that the high-viscosity polymerization system will stick to the shaft when the stirring paddle is driven by the rotating shaft to stir the material, resulting in hysteresis of the material in the central rotating shaft part, making it difficult to mix and stir evenly, and the stirring efficiency and uniformity are low.

[0006] Based on the above purpose, the present invention provides a high-viscosity material polymerization stirring device, comprising a sealed stirring tank, wherein the top and bottom of the sealed stirring tank are respectively provided with a closed top cover and a closed base, and further comprising:

[0007] An external agitator is arranged inside the closed mixing tank, and external stirring blades are symmetrically arranged in the middle of the external agitator. The external stirring blades are inclined arc-shaped structures, and the inclination direction and angle of the two symmetrically arranged external stirring blades are the same and both are downward-pressing rotating structures;

[0008] An outer support rod is symmetrically connected to the left and right ends of the outer stirring blade, and a plurality of outer horizontal rods are evenly arranged on one side of the outer support rod close to the center of the closed stirring tank;

[0009] An external rotating connecting ring is connected to the top end of the outer supporting rod, and is rotatably connected to the closed top cover. The external rotating connecting ring drives all the outer stirring blades and the outer horizontal rod to rotate synchronously through the outer supporting rod;

[0010] An inner stirrer is arranged on the inner side of the outer stirrer, and inner stirring blades are symmetrically arranged in the middle of the inner stirrer. The inner stirring blades are inclined arc-shaped structures, and the inclination direction and angle of the two symmetrically arranged inner stirring blades are the same and both are upturned rotating structures;

[0011] The inner support rod is symmetrically connected to the left and right ends of the inner stirring blade, and a plurality of inner horizontal rods are evenly arranged on one side of the inner support rod close to the outer support rod, and the inner horizontal rods are staggered and parallel to each other;

[0012] An inner rotating connecting ring is connected to the bottom end of the inner supporting rod, and the inner rotating connecting ring is rotatably connected to the closed base. The inner rotating connecting ring drives all the inner stirring blades and the inner horizontal rod to rotate synchronously through the inner supporting rod.

[0013] Furthermore, an outer ring rotating groove is provided in the middle of the closed top cover, and the outer rotating ring is rotatably connected to the closed top cover through the outer ring rotating groove. The vertical center line of the outer ring rotating groove and the vertical center line of the closed stirring tank are located on the same straight line, and an outer stirring gear ring is provided around the middle of the outer rotating ring, and the outer stirring gear ring is meshed with an outer stirring gear, and the shaft end of the outer stirring gear is connected to an external stirring motor, and the external stirring motor is fixedly connected to the closed top cover.

[0014] Furthermore, an inner ring rotating groove is provided in the middle of the closed base, and the inner rotating ring is rotatably connected to the closed base through the inner ring rotating groove. The vertical center line of the inner ring rotating groove and the vertical center line of the closed stirring tank are located on the same straight line, and an inner stirring gear ring is provided around the middle of the inner rotating ring, and the inner stirring gear ring is meshed with an internal stirring gear, and the shaft end of the internal stirring gear is connected to an internal stirring motor, and the internal stirring motor is fixedly connected to the closed base.

[0015] Furthermore, a closed stirring tank is provided inside the sealed stirring tank, a filling opening is provided on the top of the closed stirring tank, the sizes of the filling opening and the closed top cover match each other, and the closed top cover and the filling opening are embedded and sealed with each other.

[0016] Furthermore, vertical guide frames are symmetrically arranged on the left and right sides of the top of the sealed mixing tank, a traction guide groove is arranged in the middle of the vertical guide frame, and guide sliders are symmetrically arranged on the left and right sides of the closed top cover, and the closed top cover is slidably connected through the guide sliders and the traction guide grooves arranged on the vertical guide frames.

[0017] Furthermore, a traction screw is rotatably provided in the middle of the traction guide groove, a traction motor is connected to the top end of the traction screw, the traction motor is fixedly connected to the vertical guide frame, a traction screw sleeve is provided in the middle of the guide slider, and the guide slider is connected to the traction screw sleeve through the traction screw sleeve.

[0018] Furthermore, a feed opening is provided at the bottom of the closed mixing tank, the dimensions of the feed opening and the closed base are matched with each other, the closed base and the feed opening are embedded and closed with each other, and an annular feed trough is provided around the outer side of the closed base.

[0019] Furthermore, a plurality of lifting guide rails are arranged around the outer wall of the sealed stirring tank, a fixed support seat is arranged on the outer side of the sealed stirring tank, a sliding guide groove is arranged in the middle of the fixed support seat, the sealed stirring tank is slidably connected to the sliding guide groove through the lifting guide rails, a lifting rack is arranged in the middle of the lifting guide rails, a lifting gear is meshed on the outer side of the lifting rack, a lifting motor is connected to the shaft end of the lifting gear, and the lifting motor is fixedly connected to the fixed support seat.

[0020] Furthermore, the outer support rod and the inner support rod are both provided with a conveying outer tube, and a central inner tube is nested inside the conveying outer tube. The bottom ends of the central inner tube and the conveying outer tube provided inside the outer support rod are connected to each other, and the top ends of the central inner tube and the conveying outer tube provided inside the inner support rod are connected to each other. The ends of the central inner tube and the conveying outer tube that are not connected to each other are independently connected with a rotating conveying joint, and the vertical center line of the rotating conveying joint is on the same straight line as the vertical center line of the closed stirring tank.

[0021] Furthermore, the interior of the outer horizontal rod and the inner horizontal rod are both provided with a heat exchange outer tube, the inner side of the heat exchange outer tube is nested with a return inner tube, the outer ends of the heat exchange outer tube and the return inner tube are connected to each other, and the inner ends of the heat exchange outer tube and the return inner tube are respectively connected to the transport outer tube and the central inner tube, and a plurality of guide heat exchange plates are evenly arranged in the middle of the heat exchange outer tube and the transport outer tube.

[0022] Beneficial effects of the present invention: As can be seen from the above description, the present invention provides a high-viscosity material polymerization stirring device, which performs polymerization stirring processing on high-viscosity materials through an inner stirrer and an outer stirrer that are nested with each other. The inner stirrer is mainly composed of two symmetrically arranged inclined arc-shaped inner stirring blades. The inner stirrer is driven to rotate by an inner support rod connected to the left and right ends of the inner stirring blade. The inner stirrer and the outer stirrer have similar structures and are both centerless stirring shaft structures, which avoids the problem of shaft holding in high-viscosity polymerization systems. At the same time, the inner stirring blades and the outer stirring blades are respectively an upward-turning rotating structure and a downward-pressing rotating structure, which facilitates the enhancement of flow, mixing and shearing when stirring the materials, and is beneficial to improving the efficiency and uniformity of stirring. The stirring device is suitable for the polymerization reaction process of high-viscosity materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic diagram of the internal structure of a sealed stirring tank according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the front structure of an embodiment of the present invention;

[0026] Figure 3 This is a structural schematic diagram of the unloading state of an embodiment of the present invention;

[0027] Figure 4 This is a structural schematic diagram of a sealed stirring tank according to an embodiment of the present invention;

[0028] Figure 5 This is a schematic structural diagram of a closed top cover according to an embodiment of the present invention;

[0029] Figure 6 Schematic diagram of the structure of an external agitator according to an embodiment of the present invention;

[0030] Figure 7 This is a schematic structural diagram of a closed base according to an embodiment of the present invention;

[0031] Figure 8 Schematic diagram of the structure of the internal agitator according to an embodiment of the present invention.

[0032] The following are marked in the figure:

[0033] 1. Fixed support base; 101. Sliding guide groove; 102. Lifting gear; 103. Lifting motor; 2. Sealed mixing tank; 201. Closed mixing tank; 202. Lifting guide rail; 203. Lifting rack; 204. Vertical guide frame; 205. Traction guide groove; 206. Traction screw; 207. Traction motor; 3. Closed top cover; 301. Filling opening; 302. Guide slider; 303. Traction screw sleeve; 304. Outer ring rotation groove; 305. Outer stirring gear; 306. Outer stirring motor; 4. Closed base; 401. Feeding opening; 402. Inner ring rotation groove; 403. Inner Stirring gear; 404, internal stirring motor; 405, scraper traction rod; 406, annular scraper plate; 5, external agitator; 501, external stirring blade; 502, external support rod; 503, external horizontal rod; 504, external rotating ring; 505, external stirring gear ring; 6, internal agitator; 601, internal stirring blade; 602, internal support rod; 603, internal horizontal rod; 604, internal rotating ring; 605, internal stirring gear ring; 7, conveying outer pipe; 701, central inner pipe; 702, heat exchange outer pipe; 703, reflux inner pipe; 704, guide heat exchange plate; 705, rotary conveying joint; 8, annular discharge chute. DETAILED DESCRIPTION

[0034] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to specific embodiments.

[0035] It should be noted that, unless otherwise defined, the technical or scientific terms used in the present invention should have the usual meanings understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0036] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8As shown, a high-viscosity material polymerization stirring device includes a sealed stirring tank 2, the top and bottom of the sealed stirring tank 2 are respectively provided with a closed top cover 3 and a closed base 4, and further includes:

[0037] The external agitator 5 is arranged inside the closed stirring tank 201, and the external stirring blades 501 are symmetrically arranged in the middle of the external agitator 5. The external stirring blades 501 are inclined arc-shaped structures, and the inclination direction and angle of the two symmetrically arranged external stirring blades 501 are the same;

[0038] The outer support rod 502 is symmetrically connected to the left and right ends of the outer stirring blade 501. A plurality of outer horizontal rods 503 are evenly arranged on one side of the outer support rod 502 close to the center of the closed stirring tank 201;

[0039] The external rotating ring 504 is connected to the top of the external support rod 502 and is rotatably connected to the closed top cover 3. The external rotating ring 504 drives all the external stirring blades 501 and the external horizontal rod 503 to rotate synchronously through the external support rod 502;

[0040] The inner stirrer 6 is arranged on the inner side of the outer stirrer 5. The inner stirring blade 601 is symmetrically arranged in the middle of the inner stirrer 6. The inner stirring blade 601 is an inclined arc structure. The two symmetrically arranged inner stirring blades 601 have the same inclination direction and angle and are both upward-turning rotating structures.

[0041] The inner support rod 602 is symmetrically connected to the left and right ends of the inner stirring blade 601. A plurality of inner horizontal rods 603 are evenly arranged on one side of the inner support rod 602 close to the outer support rod 502. The inner horizontal rods 603 and the outer horizontal rods 503 are staggered and arranged parallel to each other.

[0042] The inner rotating ring 604 is connected to the bottom end of the inner support rod 602, and is rotatably connected to the closed base 4. The inner rotating ring 604 drives all the inner stirring blades 601 and the inner horizontal rod 603 to rotate synchronously through the inner support rod 602.

[0043] In this embodiment, the device accommodates high-viscosity materials that need to be stirred through a sealed stirring tank 2, and polymerizes and stirs the high-viscosity materials through an internal agitator 6 and an external agitator 5 that are nested with each other. The external and internal agitators 6 are mainly composed of two symmetrically arranged inclined external stirring blades 501, and the left and right ends of the external stirring blades 501 are connected to external support rods 502. The internal agitators 6 and the external agitators 5 have similar structures. The internal agitator 6 is mainly composed of two symmetrically arranged inclined internal stirring blades 601, and the left and right ends of the internal stirring blades 601 are connected to internal support rods 602. Both the internal stirring blades 601 and the external stirring blades 501 are inclined arc structures with excellent axial flow and are easy to manufacture than propellers. The external rotating ring 504 drives all external stirring blades through the external support rod 502. The stirring blades 501 and the outer horizontal rod 503 rotate synchronously, and the inner rotating ring 604 drives all the inner stirring blades 601 and the inner horizontal rod 603 to rotate synchronously through the inner support rod 602 to stir the material. Both the inner agitator 6 and the outer agitator 5 have a centerless stirring shaft structure, which avoids the problem of shaft holding in high-viscosity polymerization systems. In addition, a plurality of outer horizontal rods 503 are evenly arranged on one side of the outer support rod 502 near the center of the closed stirring tank 201, and a plurality of inner horizontal rods 603 are evenly arranged on one side of the inner support rod 602 near the outer support rod 502. The inner horizontal rods 603 and the outer horizontal rods 503 are staggered and arranged in parallel with each other, and can scrape each other, interact with each other, enhance flow, mixing and shearing, reduce heat transfer and mass transfer resistance, facilitate the dispersion of catalysts, and help improve the efficiency and uniformity of stirring.

[0044] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, preferably, the inner agitator 6 and the outer agitator 5 of the device are driven to rotate by the inner rotating ring 604 and the outer rotating ring 504 respectively, and an outer ring rotating groove 304 is provided in the middle of the closed top cover 3, the outer rotating ring 504 is rotatably connected to the closed top cover 3 through the outer ring rotating groove 304, and an outer stirring gear ring 505 is provided around the middle of the outer rotating ring 504, and the outer stirring gear ring 505 is meshed with an outer stirring gear 305, and the shaft end of the outer stirring gear 305 is connected to an external stirring motor 306, so that the external stirring motor 306 can drive the outer rotating ring 504 to rotate through the outer stirring gear 305 and the outer stirring gear ring 505, thereby driving the external agitator 5 to rotate for stirring processing.

[0045] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, preferably, the inner agitator 6 and the outer agitator 5 of the device are driven to rotate by the inner rotating ring 604 and the outer rotating ring 504 respectively, and an inner ring rotating groove 402 is provided in the middle of the closed base 4, the inner rotating ring 604 is rotatably connected to the closed top cover 3 through the inner ring rotating groove 402, and an inner stirring gear ring 605 is provided around the middle of the inner rotating ring 604, the inner stirring gear ring 605 is meshed with the inner stirring gear 403, and the shaft end of the inner stirring gear 403 is connected to the inner stirring motor 404, so that the inner stirring motor 404 can drive the inner rotating ring 604 to rotate through the inner stirring gear 403 and the inner stirring gear ring 605, thereby driving the inner agitator 6 to rotate for stirring processing.

[0046] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, preferably, the sealed stirring tank 2 of the device is provided with a closed stirring tank 201 inside, and a filling opening 301 is provided on the top of the closed stirring tank 201. The sizes of the filling opening 301 and the closed top cover 3 match each other, and the closed top cover 3 and the filling opening 301 are mutually embedded and closed. In addition, vertical guide frames 204 are symmetrically provided on the left and right sides of the top of the sealed stirring tank 2, and a traction guide groove 205 is provided in the middle of the vertical guide frame 204. Guide sliders 302 are symmetrically provided on the left and right sides of the closed top cover 3. The closed top cover 3 is slidably connected to the traction guide groove 205 provided on the guide slider 302 and the vertical guide frame 204, so the closed top cover 3 can slide upward along the traction guide groove 205 through the guide slider 302. The filling opening 301 can be disengaged to facilitate the addition of raw materials, or the filling opening 301 can be slid down to close for closed mixing processing. A traction screw 206 is provided in the middle of the traction guide groove 205, and a traction motor 207 is connected to the top of the traction screw 206. The traction motor 207 is fixedly connected to the vertical guide frame 204. A traction screw sleeve 303 is provided in the middle of the guide slider 302, and the guide slider 302 is connected to the traction screw sleeve 303 through the traction screw sleeve 303. The traction motor 207 can drive the guide slider 302 to move up and down through the traction screw 206 and the traction screw sleeve 303, thereby driving the closed top cover 3 to move up and down to open or close the filling opening 301, which is more flexible and convenient to use.

[0047] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5、 Figure 6 、 Figure 7 and Figure 8 As shown, preferably, the bottom of the closed mixing tank 201 of the device is provided with a discharge opening 401, the sizes of the discharge opening 401 and the closed base 4 match each other, the closed base 4 and the discharge opening 401 are mutually embedded and closed, and a plurality of lifting guide rails 202 are arranged around the outer wall of the sealed mixing tank 2, a fixed support seat 1 is provided on the outer side of the sealed mixing tank 2, and a sliding guide groove 101 is provided in the middle of the fixed support seat 1. The sealed mixing tank 2 is slidably connected to the sliding guide groove 101 through the lifting guide rail 202, so that the sealed mixing tank 2 as a whole can slide upward along the sliding guide groove 101 to make the closed base 4 disengage from the open discharge opening 401, so that the internal material can flow out naturally and be guided and output through the annular discharge groove 8 arranged around the outer side of the closed base 4. At the same time, a plurality of scraper traction rods 405 are vertically connected around the edge of the closed base 4, and the top of the scraper traction rod 405 is connected with an annular scraper plate 406. In line with the size of the closed mixing tank 201, the outer ring wall of the annular scraper plate 406 fits with the inner wall of the closed mixing tank 201, so that when the sealed mixing tank 2 slides upward as a whole, the annular scraper plate 406 can scrape off the material adhering to the inner wall of the closed mixing tank 201 to improve the convenience of unloading. When the sealed mixing tank 2 slides downward along the sliding guide groove 101 as a whole, the closed base 4 can close the discharge opening 401 to facilitate closed mixing processing. A lifting rack 203 is provided in the middle of the lifting guide rail 202, and a lifting gear 102 is meshed on the outer side of the lifting rack 203. The shaft end of the lifting gear 102 is connected to a lifting motor 103, so the lifting motor 103 can drive the lifting guide rail 202 to slide up and down along the sliding guide groove 101 through the lifting gear 102 and the lifting rack 203, thereby driving the sealed mixing tank 2 to move up and down as a whole to open or close the discharge opening 401, which is more flexible and convenient to use.

[0048] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8As shown, preferably, the inner agitator 6 and the outer agitator 5 of the device are respectively provided with an inner support rod 602 and an outer support rod 502, and the outer support rod 502 and the inner support rod 602 are both provided with a conveying outer tube 7, and a central inner tube 701 is nested on the inner side of the conveying outer tube 7. The central inner tube 701 provided inside the outer support rod 502 and the bottom end of the conveying outer tube 7 are interconnected, and the central inner tube 701 provided inside the inner support rod 602 and the top end of the conveying outer tube 7 are interconnected, so that a heat exchange circulation channel is formed by the conveying outer tube 7 and the central inner tube 701, which is convenient for conveying a heat exchange circulation medium to heat or dissipate heat to the internal material, so as to maintain a constant processing temperature, and the ends of the central inner tube 701 and the conveying outer tube 7 that are not interconnected are independently connected. There is a rotating conveying joint 705, and the vertical center line of the rotating conveying joint 705 is on the same straight line as the vertical center line of the closed stirring tank 201, which is convenient for maintaining the circulation of the heat exchange medium through the rotating conveying joint 705 when rotating. At the same time, the interior of the outer horizontal rod 503 and the inner horizontal rod 603 are both provided with a heat exchange outer tube 702, and the inner side of the heat exchange outer tube 702 is nested with a return inner tube 703. The outer ends of the heat exchange outer tube 702 and the return inner tube 703 are interconnected, and the inner ends of the heat exchange outer tube 702 and the return inner tube 703 are respectively interconnected with the conveying outer tube 7 and the central inner tube 701. A plurality of guide heat exchange plates 704 are evenly arranged in the middle of the heat exchange outer tube 702 and the conveying outer tube 7, thereby facilitating the further increase of the heat exchange area and enhancing the heat exchange efficiency.

[0049] When in use, first connect the corresponding pipelines of the device, then the traction motor 207 drives the guide slider 302 to move through the traction screw 206 and the traction screw sleeve 303, thereby driving the closed top cover 3 to slide upward along the traction guide groove 205 to disengage from the open filling opening 301, and then the required processed material can be filled into the closed stirring tank 201 inside the sealed stirring tank 2 through the filling opening 301, and then the closed top cover 3 slides downward along the traction guide groove 205 to close the filling opening 301, and then the internal stirring motor 404 can drive the internal rotating ring 604 to rotate through the internal stirring gear 403 and the internal stirring gear ring 605, thereby driving the internal agitator 6 to rotate, and at the same time, the stirring motor can drive the external rotating ring 504 to rotate through the external stirring gear 305 and the external stirring gear ring 505, thereby driving the external agitator 5 to rotate, and the external rotating ring 504 drives all the external stirring blades 501 and the external horizontal rod 503 to rotate synchronously through the external support rod 502, and the internal rotating ring 6 04 The inner support rod 602 drives all the inner stirring blades 601 and the inner horizontal rod 603 to rotate synchronously to stir the material. At the same time, the heat exchange circulation medium can be transported to the outer conveying tube 7 through the rotating conveying joint 705. The heat exchange circulation medium is transported to the heat exchange outer tube 702 through the conveying outer tube 7, and is refluxed to the reflux inner tube 703 and the central inner tube 701, and is output by another rotating conveying joint 705 to form a heat exchange circulation channel to transport the heat exchange circulation medium, heat or dissipate heat to the internal material, and maintain a constant processing temperature. After the stirring process is completed, the lifting motor 103 drives the lifting guide rail 202 to slide upward along the sliding guide groove 101 through the lifting gear 102 and the lifting rack 203, thereby driving the sealed stirring tank 2 to move upward as a whole, so that the closed base 4 is separated from the open discharge opening 401, and the internal material flows out naturally, and is guided and output through the annular discharge chute 8 arranged around the outer side of the closed base 4, thus completing the stirring process and unloading.

[0050] The high-viscosity material polymerization stirring device provided by the present invention performs polymerization stirring processing on the high-viscosity material through an inner stirrer 6 and an outer stirrer 5 that are nested with each other. The inner stirrer 6 is mainly composed of two symmetrically arranged inclined arc-shaped inner stirring blades 601. The inner stirrer 6 is driven to rotate by an inner support rod 602 connected to the left and right ends of the inner stirring blade 601. The inner stirrer 6 and the outer stirrer 5 have similar structures and are both centerless stirring shaft structures, which avoids the problem of shaft holding in the high-viscosity polymerization system. At the same time, the inner stirring blade 601 and the outer stirring blade 501 are respectively an upward-turning rotating structure and a downward-pressing rotating structure, which facilitates the enhancement of flow, mixing and shearing when stirring the material, and is beneficial to improving the efficiency and uniformity of stirring. The stirring device is suitable for the polymerization reaction process of high-viscosity materials.

[0051] It should be understood by those skilled in the art that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0052] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A high-viscosity material polymerization stirring device, comprising a sealed stirring tank (2), wherein the top and bottom of the sealed stirring tank (2) are respectively provided with a closed top cover (3) and a closed base (4), characterized in that: Also includes: An external stirrer (5) is arranged inside the closed stirring tank (201), and external stirring blades (501) are symmetrically arranged in the middle of the external stirrer (5), and the external stirring blades (501) are inclined arc-shaped structures. The two symmetrically arranged external stirring blades (501) have the same inclination direction and angle, and both are downward-pressing rotating structures; An outer support rod (502) is symmetrically connected to the left and right ends of the outer stirring blade (501), and a plurality of outer horizontal rods (503) are evenly arranged on one side of the outer support rod (502) close to the center of the closed stirring tank (201); An external rotating connecting ring (504) is connected to the top end of the external support rod (502), and the external rotating connecting ring (504) is rotatably connected to the closed top cover (3). The external rotating connecting ring (504) drives all the external stirring blades (501) and the external horizontal rod (503) to rotate synchronously through the external support rod (502); An inner stirrer (6) is arranged on the inner side of the outer stirrer (5), and an inner stirring blade (601) is symmetrically arranged in the middle of the inner stirrer (6). The inner stirring blade (601) is an inclined arc structure, and the two symmetrically arranged inner stirring blades (601) have the same inclination direction and angle and are both an upward-turning rotating structure; An inner support rod (602) is symmetrically connected to the left and right ends of the inner stirring blade (601), and a plurality of inner horizontal rods (603) are evenly arranged on one side of the inner support rod (602) close to the outer support rod (502), and the inner horizontal rods (603) and the outer horizontal rods (503) are staggered and arranged in parallel with each other; An inner rotating connecting ring (604) is connected to the bottom end of the inner supporting rod (602), and the inner rotating connecting ring (604) is rotatably connected to the closed base (4). The inner rotating connecting ring (604) drives all the inner stirring blades (601) and the inner horizontal rod (603) to rotate synchronously through the inner supporting rod (602); The closed stirring tank (201) is arranged inside the sealed stirring tank (2).

2. The high-viscosity material polymerization stirring device according to claim 1, characterized in that: An outer ring rotation groove (304) is provided in the middle of the closed top cover (3), and the outer rotation ring (504) is rotatably connected to the closed top cover (3) through the outer ring rotation groove (304). The vertical center line of the outer ring rotation groove (304) and the vertical center line of the closed stirring tank (201) are located on the same straight line. An outer stirring gear ring (505) is provided around the middle of the outer rotation ring (504), and the outer stirring gear (305) is meshed with the outer stirring gear (305). The shaft end of the outer stirring gear (305) is connected to the outer stirring motor (306), and the outer stirring motor (306) is fixedly connected to the closed top cover (3).

3. The high viscosity material polymerization stirring device according to claim 1, characterized in that: An inner ring rotation groove (402) is provided in the middle of the closed base (4), and the inner rotation ring (604) is rotatably connected to the closed base (4) through the inner ring rotation groove (402). The vertical center line of the inner ring rotation groove (402) and the vertical center line of the closed stirring tank (201) are located on the same straight line. An inner stirring gear ring (605) is provided around the middle of the inner rotation ring (604), and the inner stirring gear ring (605) is meshed with an inner stirring gear (403). The shaft end of the inner stirring gear (403) is connected to an inner stirring motor (404), and the inner stirring motor (404) is fixedly connected to the closed base (4).

4. The high-viscosity material polymerization stirring device according to claim 1, characterized in that: A filling opening (301) is provided at the top of the closed stirring tank (201), and the sizes of the filling opening (301) and the closed top cover (3) match each other, and the closed top cover (3) and the filling opening (301) are interlocked and sealed with each other.

5. The high-viscosity material polymerization stirring device according to claim 4, characterized in that: Vertical guide frames (204) are symmetrically provided on the left and right sides of the top of the sealed stirring tank (2), a traction guide groove (205) is provided in the middle of the vertical guide frame (204), and guide sliders (302) are symmetrically provided on the left and right sides of the closed top cover (3), and the closed top cover (3) is slidably connected to the traction guide groove (205) provided on the vertical guide frame (204) through the guide sliders (302).

6. The high-viscosity material polymerization stirring device according to claim 5, characterized in that: A traction screw (206) is rotatably provided in the middle of the traction guide groove (205), a traction motor (207) is connected to the top of the traction screw (206), and the traction motor (207) is fixedly connected to the vertical guide frame (204). A traction screw sleeve (303) is provided in the middle of the guide slider (302), and the guide slider (302) is connected to the traction screw (206) through the traction screw sleeve (303).

7. The high-viscosity material polymerization stirring device according to claim 1, characterized in that: A discharge opening (401) is provided at the bottom of the closed stirring tank (201), and the sizes of the discharge opening (401) and the closed base (4) are matched with each other. The closed base (4) and the discharge opening (401) are mutually engaged and sealed, and an annular discharge trough (8) is provided around the outer side of the closed base (4).

8. The high-viscosity material polymerization stirring device according to claim 7, characterized in that: A plurality of lifting guide rails (202) are arranged around the outer wall of the sealed stirring tank (2); a fixed support seat (1) is arranged on the outer side of the sealed stirring tank (2); a sliding guide groove (101) is arranged in the middle of the fixed support seat (1); the sealed stirring tank (2) is slidably connected to the sliding guide groove (101) through the lifting guide rails (202); a lifting rack (203) is arranged in the middle of the lifting guide rails (202); a lifting gear (102) is meshed with the outer side of the lifting rack (203); a lifting motor (103) is connected to the shaft end of the lifting gear (102); and the lifting motor (103) is fixedly connected to the fixed support seat (1).

9. The high-viscosity material polymerization stirring device according to claim 1, characterized in that: The outer support rod (502) and the inner support rod (602) are both provided with a conveying outer tube (7), and a central inner tube (701) is nested inside the conveying outer tube (7). The central inner tube (701) provided inside the outer support rod (502) and the bottom end of the conveying outer tube (7) are interconnected, and the central inner tube (701) provided inside the inner support rod (602) and the top end of the conveying outer tube (7) are interconnected. The ends of the central inner tube (701) and the conveying outer tube (7) that are not interconnected are independently connected and provided with a rotating conveying joint (705), and the vertical center line of the rotating conveying joint (705) is located on the same straight line as the vertical center line of the closed stirring tank (201).

10. The high-viscosity material polymerization stirring device according to claim 9, characterized in that: The outer horizontal rod (503) and the inner horizontal rod (603) are both provided with a heat exchange outer tube (702), and the inner side of the heat exchange outer tube (702) is nested with a return inner tube (703). The outer ends of the heat exchange outer tube (702) and the return inner tube (703) are interconnected, and the inner ends of the heat exchange outer tube (702) and the return inner tube (703) are respectively interconnected with the transport outer tube (7) and the central inner tube (701). A plurality of guide heat exchange plates (704) are evenly arranged in the middle of the heat exchange outer tube (702) and the transport outer tube (7).

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