Underwater cutting assembly for granulating high-viscosity and high-elasticity asphalt modifier

Abstract

The underwater material cutting assembly comprises an extrusion disc which is in butt joint with a discharge port of a screw extruder, the extrusion disc comprises a first plate body, a second plate body and a third plate body, the central axes of the first plate body, the second plate body and the third plate body are arranged in a stacked mode, and a water flushing cover which covers the third plate body is arranged on the outer side of the second plate body. A grain cutting assembly extending out of the water flushing cover is arranged on the side, away from the first plate body, of the third plate body and comprises a cutter shaft, one end of the cutter shaft is movably connected with the third plate body, grain cutting cutters are arranged on the surface of the cutter shaft, a plurality of threshing grooves are evenly formed in the third plate body around the cutter shaft, and the grain cutting cutters are arranged in the threshing grooves. The threshing grooves extend outwards to the outer side wall of the third plate body from the side close to the cutter shaft, and a plurality of extrusion holes are formed in a protruding strip formed between every two adjacent threshing grooves. The adhesion and blockage conditions of the high-viscosity and high-elasticity asphalt modifier in the cutting process are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of asphalt modifier particle preparation, in particular to an underwater cutting component for granulating high-viscosity and high-elasticity asphalt modifier. Background Art

[0002] Granulation is a crucial step in the manufacturing process of asphalt modifiers. Traditional granulation methods typically use hot or dry cutting, but these methods often encounter problems such as excessive dust and adhesion. To address these issues, existing technologies have begun to use underwater granulation methods.

[0003] Underwater pelletizing technology uses water flow during the cutting process to reduce the adhesion and clogging of asphalt modifiers by utilizing the cooling and cleaning effects of water. However, existing underwater pelletizing equipment still has some shortcomings in design and application.

[0004] The structure of the extrusion disk of the existing underwater granulation equipment is a planar structure. After the extruded material is cut, the blade will push the cut material to rub on the extrusion disk for a distance until it is washed away by water. However, when producing high-viscosity and high-elasticity asphalt modifier particles, due to the high viscosity and high elasticity of the material itself, it is easy for the material to stick to the extrusion disk or the cutting knife during the period of time when it is pushed by the blade to rub on the extrusion disk after being cut, causing the material to still stick and clog. Summary of the Invention

[0005] The purpose of the utility model is to address the problems existing in the prior art and provide an underwater cutting component for granulating high-viscosity and high-elastic asphalt modifiers, so as to reduce the adhesion and clogging of high-viscosity and high-elastic asphalt modifiers during the cutting process, thereby improving granulation efficiency and product quality.

[0006] According to the description, the utility model provides an underwater cutting assembly for granulating high-viscosity and high-elastic asphalt modifiers, including an extrusion disk docked with the discharge port of a screw extruder, the extrusion disk including a first plate body, a second plate body and a third plate body superimposedly arranged at a central axis, a water flushing cover covering the third plate body is provided on the outer side of the second plate body, a water flushing cover is provided on the side of the water flushing cover away from the third plate body, a water inlet pipe is provided on the side wall of the water flushing cover, and a pelletizing assembly extending out of the water flushing cover is provided on the side of the third plate body away from the first plate body, the pelletizing assembly includes a knife shaft movably connected to the third plate body at one end, a pelletizing knife is provided on the surface of the knife shaft, a plurality of threshing grooves are evenly opened on the third plate body around the knife shaft, the threshing grooves extend outward from the side close to the knife shaft to the outer wall of the third plate body, a plurality of extrusion holes are opened on the convex strip formed between two adjacent threshing grooves, and the extrusion holes pass through the first plate body, the second plate body and the third plate body.

[0007] By adopting the above technical solution, the first plate body, the second plate body and the third plate body structure are superimposed on the central axis, and the coordinated water flushing cover and pelletizing assembly are used to achieve effective cutting and pelletizing of the high-viscosity and high-elasticity asphalt modifier underwater; by setting up a threshing trough, the high-viscosity and high-elasticity asphalt modifier is quickly flushed into the threshing trough after being extruded and pelletized, reducing the time that the high-viscosity and high-elasticity asphalt modifier is in contact with the third plate body after being extruded and pelletized, thereby reducing the adhesion and blockage of the high-viscosity and high-elasticity asphalt modifier during the cutting process, and improving the pelletizing efficiency and product quality of the high-viscosity and high-elasticity asphalt modifier.

[0008] As a further technical solution, a mounting groove for docking with the discharge port of the screw extruder is provided on a side of the first plate body away from the second plate body.

[0009] As a further technical solution, the diameters of the first plate, the second plate, and the third plate decrease one by one. By adopting this technical solution, after the second plate is connected to the water-filled cover, sufficient space can flow inside the water-filled cover for the particles to move, thereby facilitating the discharge of the particles.

[0010] As a further technical solution, the multiple extrusion holes on the same ridge are evenly spaced in an arc from the side closest to the blade shaft toward the outer wall of the third plate, and are located in the center of the ridge. This technical solution allows the raw material to be more evenly distributed around the blade shaft during extrusion, helping to improve the uniformity and efficiency of pelletizing.

[0011] As a further technical solution, the threshing trough is an arc-shaped trough, the width of which gradually widens from the side closest to the blade axis outward, and the depth of which gradually increases from the side closest to the blade axis outward. By adopting this technical solution, the increasing width and depth of the threshing trough and the arc-shaped design allow particles to slide more smoothly, reducing the risk of particles clogging or sticking to the bottom wall of the threshing trough.

[0012] As a further technical solution, a socket is provided at the other end of the cutter shaft, and this end passes through the water flushing cover. By adopting this technical solution, the design of the socket facilitates the connection between the cutter shaft and the motor shaft driving the cutter shaft, and also provides convenience for subsequent maintenance and replacement.

[0013] As a further technical solution, the pelletizer includes a sleeve mounted on the surface of the cutter shaft. Multiple blades are evenly distributed on the sidewalls of the sleeve. These blades contact the side of the third plate facing away from the second plate. This technical solution makes cutting more uniform and efficient. Furthermore, the contact between the blades and the third plate helps reduce vibration and noise during the cutting process.

[0014] As a further technical solution, three water inlet pipes are provided, and the three water inlet pipes are evenly arranged around the outside of the cutter shaft. By adopting this technical solution, the water in the water flushing hood can flow evenly, effectively cooling and cleaning the cutting area, and improving the stability and service life of the equipment.

[0015] As a further technical solution, the third plate is provided with a docking groove adapted to the cutter shaft. By adopting this technical solution, the docking groove provided on the third plate and adapted to the cutter shaft ensures that the cutter shaft can be accurately and stably mounted on the third plate, thereby improving the overall stability and cutting accuracy of the device.

[0016] As a further technical solution, the blade is arc-shaped, and the curvature of the blade is consistent with the arc trajectory formed by the multiple extrusion holes on each convex strip, so as to ensure that each blade 322 can simultaneously cut the material extruded from the same column of extrusion holes 5.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Through the first plate body, the second plate body and the third plate body structure superimposed on the central axis, and the matched water flushing cover and pelletizing assembly, the high-viscosity and high-elasticity asphalt modifier is effectively cut and pelletized underwater; 2. By setting the threshing trough, the high-viscosity and high-elasticity asphalt modifier is quickly flushed into the threshing trough after being extruded and pelletized, which reduces the time that the high-viscosity and high-elasticity asphalt modifier is in contact with the third plate body after being extruded and pelletized, thereby reducing the adhesion and clogging of the high-viscosity and high-elasticity asphalt modifier during the cutting process, and improving the efficiency of the high-viscosity and high-elasticity asphalt modifier. The granulation efficiency and product quality of the agent are improved; 3. The design of the third plate body having a smaller diameter than the second plate body allows for sufficient space inside the water-filled hood for the movement of the particles after the second plate body is docked with the water-filled hood, thereby facilitating the discharge of the particles; 4. The increasing depth and arc-shaped design of the threshing trough allow the particles to slide more smoothly, reducing the risk of particle blockage and adhesion to the bottom wall of the threshing trough; 4. The design of three water inlet pipes evenly surrounding the outside of the knife shaft ensures that the water in the water flushing hood can flow evenly, effectively cooling and cleaning the cutting area, thereby improving the stability and service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of an underwater cutting assembly for granulating a high-viscosity and high-elastic asphalt modifier provided in Example 1 of the present utility model;

[0019] Figure 2 This is a schematic diagram of the connection between the extrusion disc and the pelletizer of the utility model;

[0020] Figure 3 This is a front view schematic diagram of the extrusion disc of the utility model;

[0021] Figure 4This is a three-dimensional schematic diagram of the extrusion disk of the utility model from a top view;

[0022] Figure 5 This is a schematic diagram of the three-dimensional structure of the extrusion disk of the utility model from a bottom-up perspective;

[0023] Figure 6 This is a schematic diagram of the three-dimensional structure of the pelletizer in Example 2 of the present utility model.

[0024] In the figure: 1. extrusion disc; 11. first plate; 12. second plate; 13. third plate; 131. docking groove; 2. water flushing cover; 21. water inlet pipe; 22. discharge pipe; 3. pelletizing assembly; 31. knife shaft; 32. pelletizing knife; 321. sleeve; 322. knife body; 4. mounting groove; 5. extrusion hole; 6. threshing groove. DETAILED DESCRIPTION

[0025] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. Example 1:

[0027] like Figure 1—4, the specific scheme of the embodiment is as follows: an underwater cutting component for granulating high-viscosity and high-elastic asphalt modifier, comprising an extrusion disc 1 docked with the discharge port of the screw extruder, the extrusion disc 1 comprising a first plate 11, a second plate 12 and a third plate 13 superimposed on the central axis, a water flushing cover 2 covering the third plate 13 is provided on the outer side of the second plate 12, a water inlet pipe 21 is provided on the side of the water flushing cover 2 away from the third plate 13, a discharge pipe 22 is provided on the side wall of the water flushing cover 2, and the third plate 13 is away from the first plate 11. A pelletizing assembly 3 extending out of the water flushing cover 2 is provided on one side, and the pelletizing assembly 3 includes a knife shaft 31 movably connected to the third plate body 13 at one end, and a pelletizing knife 32 is provided on the surface of the knife shaft 31. A plurality of threshing grooves 6 are evenly opened around the knife shaft 31 on the third plate body 13, and the threshing grooves 6 extend outward from the side close to the knife shaft 31 to the outer wall of the third plate body 13. A plurality of extrusion holes 5 are opened on the convex strip formed between two adjacent threshing grooves 6, and the extrusion holes 5 pass through the first plate body 11, the second plate body 12 and the third plate body 13.

[0028] In this embodiment, the above-mentioned technical scheme is adopted, and the first plate body 11, the second plate body 12 and the third plate body 13 structure arranged superimposed on the central axis, as well as the coordinated water flushing cover 2 and the pelletizing assembly 3, are used to achieve effective cutting and pelletizing of the high-viscosity and high-elasticity asphalt modifier underwater; by setting the threshing trough 6, the high-viscosity and high-elasticity asphalt modifier is quickly flushed into the threshing trough 6 after being extruded and pelletized, thereby reducing the contact time of the high-viscosity and high-elasticity asphalt modifier with the third plate body 13 after being extruded and pelletized, thereby reducing the adhesion and blockage of the high-viscosity and high-elasticity asphalt modifier during the cutting process, and improving the pelletizing efficiency and product quality of the high-viscosity and high-elasticity asphalt modifier.

[0029] It should be noted that the first plate 11 , the second plate 12 and the third plate 13 can be manufactured in an integrally formed manner.

[0030] In this embodiment, the diameters of the first plate 11, the second plate 12, and the third plate 13 decrease one by one. Based on this design, after the second plate 12 is connected to the water-filled cover, there is enough space inside the water-filled cover for the particles to move, thereby facilitating the discharge of the particles.

[0031] In addition, it should be noted that after the material and water are discharged through the discharge pipe 22 on one side of the water-filled hood, the subsequent components separate the water and the material and dehydrate and dry the material. The equipment used in these subsequent steps are all completed using the corresponding equipment in the existing underwater granulation equipment.

[0032] Preferably, the multiple extrusion holes 5 on the same convex strip are evenly distributed in an arc from the side close to the knife shaft 31 toward the outer wall of the third plate body 13, and are located in the middle of the convex strip. This allows the raw materials to be more evenly distributed around the knife shaft 31 during extrusion, which helps to improve the uniformity and efficiency of pelletizing.

[0033] like Figure 2-4 As shown, the threshing groove 6 is an arc-shaped groove, the width of the threshing groove 6 gradually widens from the side close to the knife shaft 31 outward, and the depth of the threshing groove 6 gradually increases from the side close to the knife shaft 31 outward. The increasing width, increasing depth and arc-shaped design of the threshing groove 6 enable the particles to slide more smoothly, reducing the risk of particles being blocked and adhering to the bottom wall of the threshing groove 6.

[0034] like Figure 1 As shown, a socket is provided at the other end of the cutter shaft 31, and this end passes through the water flush cover 2. This design of the socket facilitates the connection between the cutter shaft 31 and the motor shaft that drives the cutter shaft 31, and also provides convenience for subsequent maintenance and replacement.

[0035] like Figure 2 As shown, the pelletizer 32 includes a sleeve 321 disposed on the surface of the blade shaft 31. Multiple blades 322 are evenly distributed on the sidewalls of the sleeve 321. The blades 322 contact the side of the third plate 13 away from the second plate 12. This technical solution makes cutting more uniform and efficient. Furthermore, the contact between the blades 322 and the third plate 13 helps reduce vibration and noise during the cutting process.

[0036] Preferably, during design, according to the direction of rotation of the pelletizer 32, the blade body 322 is designed to be an arc surface in the corresponding direction, which is conducive to allowing the particles to be pried away along the arc surface after cutting.

[0037] like Figure 1 As shown, three water inlet pipes 21 are provided, and the three water inlet pipes 21 are evenly surrounded on the outside of the cutter shaft 31. By adopting this technical solution, it is ensured that the water in the water flushing cover 2 can flow evenly, effectively cooling and cleaning the cutting area, and improving the stability and service life of the equipment.

[0038] At the same time, if Figure 1 As shown, the water inlet pipe 21 is arranged perpendicular to the extrusion disc 1, so that the material can be flushed into the threshing trough 6 on one side of the extrusion hole 5 after being cut.

[0039] like Figure 4 As shown, the third plate 13 is provided with a docking groove 131 adapted to the blade shaft 31. By adopting this technical solution, the docking groove 131 adapted to the blade shaft 31 provided on the third plate 13 ensures that the blade shaft 31 can be accurately and stably installed on the third plate 13, thereby improving the overall stability and cutting accuracy of the equipment.

[0040] like Figure 5As shown, a mounting groove 4 is provided on the side of the first plate 11 away from the second plate 12 to connect with the discharge port of the screw extruder, so that one end of the blade shaft 31 can be stably connected with the first plate 11 to ensure the stability of the blade shaft 31 during rotation. Example 2:

[0041] like Figure 6 As shown, based on the design of the blade 322 in the above embodiment, the blade 322 as a whole can be designed to be arc-shaped, and the curvature of the blade is consistent with the arc trajectory formed by the multiple extrusion holes 5 on each convex strip, so as to ensure that each blade 322 can simultaneously cut the material extruded from the same column of extrusion holes 5.

[0042] The working principle of the above embodiment is as follows: the extrusion disc 1 and the screw extruder are docked and installed through the mounting groove 4. The screw extruder extrude the material through the extrusion disc 1. The raw material is extruded through the extrusion channel and the extrusion hole 5 under the pressure of the screw extruder. When the raw material is extruded from the extrusion hole 5, the pelletizer 32 on the cutter shaft 31 starts to rotate under the drive of the motor to cut the extruded raw material. At the same time, water is poured into the water filling cover through the water inlet pipe 21. The cut pellets are washed into the threshing tank 6 by the water flow. Then they are discharged through the discharge pipe 22 along with the water flow.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An underwater cutting assembly for granulating high-viscosity and high-elastic asphalt modifier, characterized by: The cam is connected to the outer wall of the cam and is provided with a plurality of channels, the channels being connected to the outer wall of the cam and the channels being connected to the outer wall of the cam.

2. The underwater cutting assembly for granulating high-viscosity and high-elastic asphalt modifier according to claim 1 is characterized by: A mounting groove for docking with a discharge port of a screw extruder is provided on a side of the first plate body away from the second plate body.

3. The underwater cutting assembly for granulating high-viscosity and high-elastic asphalt modifier according to claim 1 is characterized by: The diameters of the first plate body, the second plate body and the third plate body decrease one by one.

4. The underwater cutting assembly for granulating high-viscosity and high-elastic asphalt modifier according to claim 1 is characterized by: The multiple extrusion holes on the same convex strip are evenly distributed in an arc from the side close to the knife axis toward the outer side wall of the third plate body, and are located in the middle of the convex strip.

5. The underwater cutting assembly for granulating high-viscosity and high-elastic asphalt modifier according to claim 1 is characterized by: The threshing groove is an arc-shaped groove, the width of the threshing groove gradually widens from the side close to the knife shaft to the outside, and the depth of the threshing groove gradually increases from the side close to the knife shaft to the outside.

6. The underwater cutting assembly for granulating high-viscosity and high-elastic asphalt modifier according to claim 1 is characterized by: The other end of the knife shaft is provided with an inserting hole, and this end passes through the water flushing cover.

7. The underwater cutting assembly for granulating high-viscosity and high-elastic asphalt modifier according to claim 1 is characterized by: The pelletizer includes a sleeve arranged on the surface of the cutter shaft, and a plurality of cutter bodies are evenly arranged on the side wall of the sleeve. The cutter bodies are in contact with a side of the third plate body away from the second plate body.

8. The underwater cutting assembly for granulating high-viscosity and high-elastic asphalt modifier according to claim 1 is characterized by: There are three water inlet pipes, and the three water inlet pipes are evenly surrounded on the outside of the knife shaft.

9. The underwater cutting assembly for granulating high-viscosity and high-elastic asphalt modifier according to claim 1 is characterized by: The third plate body is provided with a docking groove adapted to the knife shaft.

10. The underwater cutting assembly for granulating high-viscosity and high-elastic asphalt modifier according to claim 7, characterized in that: The blade body is arc-shaped, and the curvature of the blade is consistent with the arc trajectory formed by the multiple extrusion holes on each convex strip.

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