A high viscosity melt anti-settling stirred tank

Abstract

The utility model relates to the technical field of stirring tank discloses a kind of high viscosity melt anti-precipitation stirring tank, including bucket wall, the outer wall top of bucket wall is fixedly connected with bucket cover, the outer wall of bucket cover is rotatably connected with stirring shaft, the outer wall bottom of bucket wall is communicated with discharge port, the outer wall of stirring shaft is provided with turbulence mechanism, the outer wall top of discharge port is fixedly connected with conical head, the outer wall of conical head is provided with anti-sediment mechanism, the turbulence mechanism includes multiple screws, the outer wall of multiple screw is all threadedly connected on the inner wall of bucket wall. In the utility model, chute makes fluid produce vortex, enhances mixing effect, rubber pad absorbs vibration, avoids energy consumption, spiral plate carries material to rise, through-hole forms vortex, increases the shear force and mixing degree of fluid, and fixed stirring piece enhances edge to the shear and stirring of fluid, let material mix fully, prevent material mixing unevenly, cause material to precipitate accumulation.

Description

Technical Field

[0001] This utility model relates to the field of mixing tank technology, and in particular to a mixing tank for preventing sedimentation of high-viscosity melts. Background Technology

[0002] High-viscosity melts suffer from poor flowability, strong intermolecular forces, and temperature sensitivity. Differences in component density lead to separation and precipitation. The anti-precipitation mixing tank for high-viscosity melts features a cylindrical body with a flow-guiding structure, equipped with anchor-type, ribbon-type, and frame-type agitators with scraping walls. This allows the tank to reach close to the bottom and walls, eliminating dead zones. Multi-layer heating and heat tracing devices ensure uniform temperature and prevent sudden increases in local viscosity. Furthermore, variable frequency speed control can be used to match melts of different viscosities, ensuring stable suspension of the dispersed phase and preventing precipitation.

[0003] Traditional high-viscosity melt anti-sedimentation mixing tanks use anchor-type and frame-type stirring blades. The blades are driven to rotate by a motor. The shearing force and thrust of the blades on the melt drive the local flow of the melt, reducing sedimentation. Heating relies on a single layer of heating pipes on the tank wall to maintain the basic temperature of the melt and reduce viscosity. However, the problem of sedimentation and accumulation at the bottom discharge port still exists.

[0004] Current high-viscosity melt anti-settling mixing tanks use ribbon and multi-layer combined impellers, along with internal baffles, to form a full-bucket circulating flow field with no dead-angle agitation. Through multi-zone heating of the tank wall and bottom, precise temperature control prevents local viscosity fluctuations. They can also be frequency-controlled to match the melt viscosity, and some have wall scraping structures to remove melt from the wall surface in real time. These three aspects work together to prevent sedimentation, resulting in higher efficiency. However, there is still a shear stress gradient between the material near and far from the impeller blades, and the melt adhering to the tank wall cannot be effectively disturbed, leading to material sedimentation and accumulation. To address this issue, a new high-viscosity melt anti-settling mixing tank is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a stirring tank for preventing sedimentation of high-viscosity melts, aiming to improve the problem that there is a shear stress gradient between the material near and away from the impeller in the prior art, and the melt adhering to the tank wall cannot be effectively disturbed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a stirring tank for preventing sedimentation of high-viscosity melt, comprising a tank wall, a tank cover fixedly connected to the top of the outer wall of the tank wall, a stirring shaft rotatably connected to the outer wall of the tank cover, a discharge port connected to the bottom of the outer wall of the tank wall, a turbulence-inducing mechanism provided on the outer wall of the stirring shaft, a conical head fixedly connected to the top of the outer wall of the discharge port, and an anti-settling mechanism provided on the outer wall of the conical head;

[0007] The turbulence-disrupting mechanism includes multiple screws, the outer walls of which are threaded to the inner wall of the barrel. The inner wall of the barrel has multiple grooves, and the inner walls of the grooves have multiple threaded grooves. The outer wall of the stirring shaft has a pin hole, and a cylindrical pin is fixedly connected to the inner wall of the pin hole. A rubber pad is fixedly connected to the outer wall of the stirring shaft, and a retaining ring is fixedly connected to the outer wall of the rubber pad. The inner walls of the grooves are provided with flow-guiding components, and the outer wall of the retaining ring is provided with stirring components.

[0008] As a further description of the above technical solution:

[0009] The anti-sinking mechanism includes multiple fixing plates, the outer walls of which are fixedly connected to the outer wall of the conical head, the outer walls of which are fixedly connected to support rods, and the outer walls of which are fixedly connected to hollow columns.

[0010] As a further description of the above technical solution:

[0011] The anti-sinking mechanism also includes a rotating shaft, the outer wall of which is rotatably connected to the inner wall of the hollow column, and multiple transmission blades and rotating plates are fixedly connected to the outer wall of the rotating shaft.

[0012] As a further description of the above technical solution:

[0013] The flow guiding component includes multiple curved strips, the outer walls of which are fixedly connected to the inner wall of the groove, and the outer walls of which are provided with multiple inclined grooves, and the outer walls of which are fixedly connected with anti-stick plates.

[0014] As a further description of the above technical solution:

[0015] The stirring assembly includes a spiral plate, the outer wall of which is fixedly connected to the outer wall of a fixed ring. The outer wall of the spiral plate has multiple through holes, and multiple stirring blades are fixedly connected to the outer wall of the spiral plate.

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

[0017] Two rotary blades are fixedly connected to the outer wall of the stirring shaft, and a transmission housing is fixedly connected to the outer wall of the bucket cover.

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

[0019] A motor is fixedly connected to the top of the outer wall of the transmission housing, and a support column is fixedly connected to the bottom of the outer wall of the transmission housing.

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

[0021] A base plate is fixedly connected to the bottom of the outer wall of the support column, and the outer wall of the barrel is fixedly connected to the outer wall of the support column.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the inclined groove on the curved strip generates more eddies in the fluid, enhancing the mixing effect. The fixed rubber pad between the stirring shaft and the fixed ring absorbs the vibration of the shaft, avoiding energy consumption. The spiral plate drives the material to rise, and the eddies formed by the through holes increase the shear force and mixing degree of the fluid, breaking the laminar flow. The fixed stirring blade enhances the shearing and stirring effect of the blade edge on the fluid, allowing the material around the blade to be mixed more fully, preventing uneven mixing of materials in different places, which would lead to material sedimentation and accumulation.

[0024] 2. In this utility model, a transmission paddle is fixed at the upper end of the rotating shaft and a rotating plate is fixed at the lower end. The transmission paddle rotates under the drive of the material, thereby driving the rotating plate to rotate and roll up the material. The local diameter of the rotating shaft inside the hollow column is relatively large, which allows it to be fixed inside the hollow column. With the fixing plate and support rod, the hollow column can be fixed so as to achieve the goal of completing the stirring without hindering the subsequent discharge of the material, and avoid sedimentation and accumulation at the discharge port at the bottom of the bucket. Attached Figure Description

[0025] Figure 1 This is a perspective view of a stirring tank for preventing sedimentation of high-viscosity melts according to the present invention.

[0026] Figure 2 This is a front view of a stirring tank for preventing sedimentation of high-viscosity melts according to the present invention.

[0027] Figure 3 This is a cross-sectional view of the lid of a stirring tank for preventing sedimentation of high-viscosity melts according to the present invention.

[0028] Figure 4 This is a cross-sectional view of the tank wall of a stirring tank for preventing sedimentation of high-viscosity melts according to the present invention.

[0029] Figure 5 This is a cross-sectional view of the stirring shaft of a stirring tank for preventing sedimentation of high-viscosity melts according to the present invention.

[0030] Figure 6 This is a schematic diagram of the discharge port of a mixing tank for preventing sedimentation of high-viscosity melts, as proposed in this utility model.

[0031] Legend:

[0032] 1. Barrel wall; 2. Stirring shaft; 3. Rotary blade; 4. Turbulence mechanism; 401. Groove; 402. Threaded groove; 403. Screw; 404. Flow guide assembly; 4041. Bending strip; 4042. Inclined groove; 4043. Anti-stick plate; 405. Pin hole; 406. Cylindrical pin; 407. Rubber pad; 408. Fixing ring; 409. Stirring assembly; 4091. Spiral plate; 4092. Through hole; 4093. Stirring blade; 5. Discharge port; 6. Conical head; 7. Anti-sinking mechanism; 701. Fixing plate; 702. Support rod; 703. Hollow column; 704. Rotating shaft; 705. Transmission blade; 706. Rotating plate; 8. Barrel lid; 9. Transmission housing; 10. Motor; 11. Support column; 12. Base plate. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figures 1-3 An embodiment of this utility model is provided: a stirring tank for preventing sedimentation of high viscosity melt, including a barrel wall 1, a barrel cover 8 fixedly connected to the top of the outer wall of the barrel wall 1, a stirring shaft 2 rotatably connected to the outer wall of the barrel cover 8, a discharge port 5 connected to the bottom of the outer wall of the barrel wall 1, a turbulence mechanism 4 provided on the outer wall of the stirring shaft 2, a conical head 6 fixedly connected to the top of the outer wall of the discharge port 5, and an anti-settling mechanism 7 provided on the outer wall of the conical head 6;

[0035] The turbulence-inducing mechanism 4 includes multiple screws 403, whose main function is to fix the curved strip 4041. The outer walls of the multiple screws 403 are threaded to the inner wall of the barrel wall 1. The inner wall of the barrel wall 1 has multiple grooves 401, whose main function is to place the curved strip 4041 without creating excessive unevenness, so as to avoid material retention. The inner walls of the multiple grooves 401 are all provided with multiple threaded grooves 402. The outer wall of the stirring shaft 2 has a pin hole 405, and a cylindrical pin 4 is fixedly connected to the inner wall of the pin hole 405. 06, its main function is to fix the rubber pad 407 and the fixing ring 408. The rubber pad 407 is fixedly connected to the outer wall of the stirring shaft 2. Its main function is to absorb the vibration of the shaft and avoid energy consumption. The fixing ring 408 is fixedly connected to the outer wall of the rubber pad 407. Its main function is to fix the curved strip 4041. The inner wall of the multiple grooves 401 is provided with a flow guiding component 404. The flow guiding component 404 includes multiple curved strips 4041. The outer wall of the multiple curved strips 4041 is fixedly connected to the grooves. The inner wall of the trough 401 and the outer wall of the multiple curved strips 4041 are provided with multiple inclined grooves 4042. Their main function is to generate more turbulence and eddies in the fluid, enhance the mixing effect, and reduce sedimentation. The outer walls of the multiple inclined grooves 4042 are fixedly connected with anti-stick plates 4043. Their main function is to prevent materials from sticking to the outer walls of the inclined grooves 4042. The outer wall of the fixing ring 408 is provided with a stirring assembly 409, which includes a spiral plate 4091. Its main function is to drive the material upward and prevent the material from accumulating at the bottom. The outer wall of the spiral plate 4091 is fixedly connected to the outer wall of the fixing ring 408. The outer wall of the spiral plate 4091 is provided with multiple through holes 4092. Their main function is to form eddies, increase the shear force and mixing degree of the fluid, break the laminar flow that will be formed, and prevent the material from settling. The outer wall of the spiral plate 4091 is fixedly connected with multiple stirring blades 4093. Their main function is to enhance the shearing and stirring effect of the blade edges on the fluid, so that the material around the blades is mixed more thoroughly.

[0036] Specifically, the barrel wall 1 is the space for material mixing, the bottom of the barrel cover 8 is rotatably connected to the mixing shaft 2 for mixing, and the bottom of the barrel wall 1 has a conical head 6 and a discharge port 5 to ensure the normal discharge of material.

[0037] Multiple grooves 401 are formed on the inner wall of the barrel 1. Their main function is to accommodate the curved strip 4041 without creating excessive unevenness, thus preventing material stagnation. Multiple threaded grooves 402 are formed on the inner wall of the multiple grooves 401 to cooperate with screws 403 to fix the curved strip 4041. Multiple inclined grooves 4042 are formed on the curved strip 4041, which can generate more turbulence and eddies in the fluid, enhance the mixing effect, and reduce sedimentation. At the same time, to prevent high-viscosity melts from sticking together in the inclined grooves 4042, anti-sticking plates 4043 are fixed on the outer wall of the inclined grooves 4042. In addition, to drive the bottom material to rise and participate in stirring, and prevent sedimentation, a groove is formed near the bottom below the two rotating blades 3 on the stirring shaft 2. The pin hole 405 and the cylindrical pin 406 cooperate to fix the rubber pad 407 and the fixing ring 408 on the stirring shaft 2. The rubber pad 407 is used to absorb the vibration of the shaft and avoid energy consumption. The fixing ring 408 fixes the spiral plate 4091. The spiral plate 4091 drives the material to rise and prevents the material from accumulating at the bottom. At the same time, the spiral plate 4091 has multiple through holes 4092, which can form vortices, increase the shear force and mixing degree of the fluid, break the laminar flow, and prevent the material from settling. Multiple stirring blades 4093 are fixed on the outer edge of the spiral plate 4091 to enhance the shearing and stirring effect of the blade edge on the fluid, so that the material around the blade is mixed more thoroughly.

[0038] Reference Figures 4-6 The anti-sinking mechanism 7 includes multiple fixed plates 701, the outer walls of which are fixedly connected to the outer wall of the conical head 6. Support rods 702 are fixedly connected to the outer walls of the multiple fixed plates 701, and their main function is to fix the hollow column 703. The outer walls of the multiple support rods 702 are fixedly connected to the hollow column 703. The anti-sinking mechanism 7 also includes a rotating shaft 704, the outer wall of which is rotatably connected to the inner wall of the hollow column 703. Multiple transmission blades 705 are fixedly connected to the outer wall of the rotating shaft 704, and their main function is to follow the rotation of the material and drive the rotating plate 706 to rotate. Multiple rotating plates 706 are fixedly connected to the outer wall of the rotating shaft 704, and their main function is to scrape up the material near the discharge port 5.

[0039] Specifically, in order to drive the material near the discharge port 5 to rise and participate in the mixing, the hollow column 703 is supported by multiple fixed plates 701 and support rods 702 on the outer wall of the conical head 6, which does not hinder the later discharge of the material. The hollow column 703 is rotatably connected to a rotating shaft 704. The rotating shaft 704 has a larger local diameter inside the hollow column 703. Multiple transmission blades 705 above the rotating shaft 704 rotate with the material, thereby driving the rotating plate 706 to rotate and scraping up the material near the discharge port 5.

[0040] Reference Figures 1-3Two rotating blades 3 are fixedly connected to the outer wall of the stirring shaft 2. Their main function is to stir the materials. A transmission shell 9 is fixedly connected to the outer wall of the bucket cover 8. A motor 10 is fixedly connected to the top of the outer wall of the transmission shell 9. Its main function is to provide power. A support column 11 is fixedly connected to the bottom of the outer wall of the transmission shell 9. Its main function is to fix the various components. A base plate 12 is fixedly connected to the bottom of the outer wall of the support column 11. The outer wall of the bucket wall 1 is fixedly connected to the outer wall of the support column 11.

[0041] Specifically, two rotating blades 3 are fixed on the stirring shaft 2 for stirring materials, the motor 10 provides power for stirring through the transmission housing 9, and the support column 11 is fixed on the top of the base plate 12 for fixing the various components.

[0042] Working principle: First, multiple grooves 401 are made on the inner wall of the barrel 1. The curved strip 4041 is fixed in the groove 401 by the threaded connection of the screw 403 and the threaded groove 402. The groove 401 can prevent excessive unevenness while placing the curved strip 4041 to avoid material retention. The inclined groove 4042 made on the curved strip 4041 generates more turbulence and eddies in the fluid, enhances the mixing effect, and reduces sedimentation. To prevent material from sticking to the outer wall of the inclined groove 4042, an anti-stick plate 4043 is fixed on the outer wall of the inclined groove 4042. At the same time, a pin hole 405 is made on the stirring shaft 2, which allows the cylindrical pin 406 to pass through. Rubber pad 407 and fixing ring 408 are fixed on stirring shaft 2. Rubber pad 407 is used to absorb the vibration of the shaft and avoid energy consumption. Spiral plate 4091 is fixed on fixing ring 408 to drive the material to rise and prevent the material from accumulating at the bottom. Through hole 4092 is opened on spiral plate 4091 to form vortex, which increases the shear force and mixing degree of the fluid, breaks the laminar flow that will be formed, and prevents the material from settling. Stirring blade 4093 is fixed on the outer edge of spiral plate 4091 to enhance the shearing and stirring effect of the blade edge on the fluid, so that the material around the blade is mixed more fully and prevents uneven mixing of materials in various places, which would lead to material settling and accumulation.

[0043] Furthermore, during stirring, the material is carried up and rotated. The transmission blade 705, driven by the material, drives the rotating plate 706 to rotate through the transmission of the rotating shaft 704, scraping up the material near the discharge port 5. The rotating shaft 704 is rotatably connected inside the hollow column 703. The local diameter of the rotating shaft 704 inside the hollow column 703 is relatively large, allowing it to be fixed inside the hollow column 703. The hollow column 703 is fixed to the conical head 6 by the fixing plate 701 and the support rod 702, which does not hinder the subsequent discharge of material and avoids sedimentation and accumulation at the discharge port 5 at the bottom of the barrel.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stirring tank for preventing sedimentation of high-viscosity melts, comprising a tank wall (1), characterized in that: A bucket lid (8) is fixedly connected to the top of the outer wall of the bucket wall (1). A stirring shaft (2) is rotatably connected to the outer wall of the bucket lid (8). A discharge port (5) is connected to the bottom of the outer wall of the bucket wall (1). A turbulence mechanism (4) is provided on the outer wall of the stirring shaft (2). A conical head (6) is fixedly connected to the top of the outer wall of the discharge port (5). An anti-sinking mechanism (7) is provided on the outer wall of the conical head (6). The turbulence mechanism (4) includes multiple screws (403), the outer walls of which are threaded to the inner wall of the barrel wall (1). The inner wall of the barrel wall (1) has multiple grooves (401), and the inner walls of the multiple grooves (401) have multiple threaded grooves (402). The outer wall of the stirring shaft (2) has a pin hole (405), and the inner wall of the pin hole (405) is fixedly connected to a cylindrical pin (406). The outer wall of the stirring shaft (2) is fixedly connected to a rubber pad (407), and the outer wall of the rubber pad (407) is fixedly connected to a retaining ring (408). The inner walls of the multiple grooves (401) are provided with flow guiding components (404), and the outer wall of the retaining ring (408) is provided with stirring components (409).

2. The stirred tank for preventing sedimentation of high-viscosity melts according to claim 1, characterized in that: The anti-sinking mechanism (7) includes multiple fixing plates (701), the outer walls of the multiple fixing plates (701) are fixedly connected to the outer wall of the conical head (6), the outer walls of the multiple fixing plates (701) are fixedly connected to support rods (702), and the outer walls of the multiple support rods (702) are fixedly connected to hollow columns (703).

3. The stirred tank for preventing sedimentation of high-viscosity melts according to claim 1, characterized in that: The anti-sinking mechanism (7) also includes a rotating shaft (704), the outer wall of which is rotatably connected to the inner wall of the hollow column (703), and a plurality of transmission blades (705) are fixedly connected to the outer wall of the rotating shaft (704), and a plurality of rotating plates (706) are fixedly connected to the outer wall of the rotating shaft (704).

4. The stirred tank for preventing sedimentation of high-viscosity melts according to claim 1, characterized in that: The flow guiding component (404) includes a plurality of curved strips (4041), the outer walls of the plurality of curved strips (4041) are fixedly connected to the inner wall of the groove (401), the outer walls of the plurality of curved strips (4041) are provided with a plurality of inclined grooves (4042), and the outer walls of the plurality of inclined grooves (4042) are fixedly connected with anti-stick plates (4043).

5. The stirred tank for preventing sedimentation of high-viscosity melts according to claim 1, characterized in that: The stirring assembly (409) includes a spiral plate (4091), the outer wall of which is fixedly connected to the outer wall of the fixing ring (408), the outer wall of which has multiple through holes (4092), and multiple stirring blades (4093) fixedly connected to the outer wall of which.

6. The stirred tank for preventing sedimentation of high-viscosity melts according to claim 1, characterized in that: Two rotating blades (3) are fixedly connected to the outer wall of the stirring shaft (2), and a transmission shell (9) is fixedly connected to the outer wall of the bucket cover (8).

7. The stirred tank for preventing sedimentation of high-viscosity melts according to claim 6, characterized in that: A motor (10) is fixedly connected to the top of the outer wall of the transmission housing (9), and a support column (11) is fixedly connected to the bottom of the outer wall of the transmission housing (9).

8. The stirred tank for preventing sedimentation of high-viscosity melts according to claim 7, characterized in that: The bottom of the outer wall of the support column (11) is fixedly connected to the bottom plate (12), and the outer wall of the barrel wall (1) is fixedly connected to the outer wall of the support column (11).

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