A vertical granulator

Abstract

The application discloses a vertical granulator, which comprises a machine body and a feeding device, a granulating roller is rotationally connected in the machine body, the granulating roller comprises an upper roller and a lower roller, a feeding port is arranged at the joint of the upper roller and the lower roller on one side of the machine body, the feeding device is arranged at the feeding port, the upper roller is located obliquely above the lower roller away from the feeding port, the bottom of the machine body is provided with a discharging port, a shaper is arranged at the discharging port, a driving source is arranged on the machine body to drive the granulating roller to synchronously and reversely rotate, a conveying device such as a screw conveyor is used to horizontally convey the material from the feeding port into the machine body between the granulating rollers to realize extrusion granulation, so that the material entering speed can be well controlled, the feeding speed can be adjusted according to different material characteristics to achieve better feeding efficiency, the production efficiency of the granulation is effectively improved, and the granulation of more different kinds of raw materials can be met, and the applicability and universality are better.

Description

Technical Field

[0001] This invention relates to the field of granulators, and more particularly to a vertical granulator. Background Technology

[0002] The twin-roll extrusion granulator is a dry extrusion granulation equipment. It relies on a pair of synchronously rotating granulation rollers with dents on their surfaces to apply high pressure to dry powder materials. It achieves room temperature physical extrusion molding by relying on the intermolecular forces of the materials. It does not require the addition of water or binders, nor does it require drying. The granules are then shaped and screened to obtain the final product.

[0003] The two granulating rollers on existing twin-roll extrusion granulators are basically set horizontally and parallel. The raw material falls from the top discharge port into the space between the two granulating rollers. That is, the raw material mainly relies on its own gravity for feeding. The feeding speed is basically constant. This method is only suitable for some types of raw materials, has poor applicability, and can affect the final production efficiency. It needs further improvement and perfection. Summary of the Invention

[0004] To further improve applicability and production efficiency, this application provides a vertical granulator.

[0005] This application provides a vertical granulator, which adopts the following technical solution: A vertical granulator includes a machine body and a feeding device. A granulating roller is rotatably connected inside the machine body. The granulating roller includes an upper roller and a lower roller. A feed inlet is provided on one side of the machine body at the connection between the upper roller and the lower roller. The feeding device is located at the feed inlet. The upper roller is located obliquely above the lower roller facing away from the feed inlet. A discharge port is provided at the bottom of the machine body, and a shaper is provided at the discharge port. A drive source is provided on the machine body to drive the granulating roller to rotate synchronously in opposite directions.

[0006] Optionally, the feeding device includes a screw conveyor, one end of which is provided with a feed hopper and the other end with a discharge port and a guide plate at the discharge port, the guide plate being used to guide the material between the upper roller and the lower roller.

[0007] Optionally, the machine body includes a top seat and a base. One side of the top seat is hinged to the base. The upper roller is rotatably connected to the top seat, and the lower roller is rotatably connected to the base. An upper seat is hinged to the side of the top seat facing away from the hinge, and a lower seat is hinged to the side of the base facing away from the hinge. An adjusting column connecting the upper and lower seats is provided between them. The bottom end of the adjusting column is rotatably connected to the lower seat, and the top end of the adjusting column is threaded to the upper seat.

[0008] Optionally, the adjusting column has an operating part integrally disposed therewith, and the operating part has a polygonal structure.

[0009] Optionally, the adjusting column has a locking nut that is threadedly connected to it, the locking nut being used to abut against the end face of the upper seat.

[0010] Optionally, the bottom outer wall of the adjusting column is provided with graduated grooves distributed around the circumference, and the lower seat is provided with marking grooves corresponding to the graduated grooves.

[0011] Optionally, the top seat includes a seat body and a slide block, the slide block being vertically slidably connected to the seat body, the upper roller being rotatably connected to the slide block, and a first pressure sensor being provided on the seat body, the detection end of the first pressure sensor being connected to the slide block.

[0012] Optionally, the screw conveyor includes a housing and a conveying screw, the conveying screw being rotatably connected inside the housing, the outer wall of the conveying screw having helical blades, the helical blades being arranged in a gradually changing pattern, the helical blades gradually becoming denser from one end near the feed hopper to the other end.

[0013] Optionally, the screw conveyor further includes a base, on which a power source is provided to drive the conveying screws to rotate. There are two conveying screws arranged side by side in the housing. A pressure plate is rotatably connected in the feed hopper. The pressure plate has a central shaft. A transmission gear is provided between the central shaft and the conveying screws to drive the two.

[0014] Optionally, a second pressure sensor is provided at the conveying end of the screw conveyor.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. By using a conveying device such as a screw conveyor, the material is horizontally fed from the feed inlet into the granulation rollers inside the machine body to achieve extrusion granulation. This allows for good adjustment and control of the material input speed, and further adjusts the feeding speed according to the characteristics of different materials to achieve better feeding efficiency. Ultimately, this effectively improves the production efficiency of granulation and can meet the granulation needs of more different types of raw materials, thus having better applicability and versatility. 2. The granulating rollers are respectively set on the top seat and the base that are hinged to each other. During adjustment, only the adjusting column needs to be rotated to flip the upper seat and adjust the distance between the granulating rollers. The overall structure is simple and has few parts. The adjustment operation is simple, convenient and stable. 3. By rotating the adjusting column and matching the scale groove with the marking groove, the accuracy of the granulating roller adjustment can be achieved. After the adjustment is completed, the locking nut can be rotated to lock the current position against the upper seat, preventing the granulating roller from changing its position later, and effectively improving the stability of the granulating roller after adjustment. 4. The spiral blades on the conveying screw are gradually designed to convey materials while pre-compressing them in advance. This ensures that the materials have sufficient pressure and density before granulation, thereby improving the granulation effect. The pressure plate inside the feed hopper can push the materials inside between the two conveying screws, which not only plays a role in pushing the materials but also prevents the materials from sticking to the inner wall of the feed hopper and causing bridging. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of Example 1.

[0017] Figure 2 This is a structural diagram of the body and conveying device from a first-view perspective in Embodiment 1.

[0018] Figure 3 This is a structural diagram of the body and conveying device from a second perspective in Embodiment 1.

[0019] Figure 4 This is a top view of the machine body and conveying device in Embodiment 1.

[0020] Figure 5 This is a cross-sectional view of the machine body and conveying device in Example 1.

[0021] Figure 6 This is a structural diagram of the organism from a first-person perspective in Example 1.

[0022] Figure 7 This is a structural diagram of the organism from a second perspective in Example 1.

[0023] Figure 8 This is a cross-sectional view of the body in Example 1.

[0024] Figure 9 This is Example 1, a structural diagram used to illustrate the internal structure of the machine.

[0025] Figure 10 This is a perspective view of the shaper in Example 1.

[0026] Figure 11 This is a structural diagram of the adjusting column and the lower seat in Example 2.

[0027] Figure 12 This is a cross-sectional view of the feed hopper in Example 2.

[0028] Explanation of reference numerals in the attached figures: 1. Frame; 2. Machine body; 3. Screw conveyor; 4. Feed inlet; 5. Feed hopper; 6. Top seat; 7. Base; 8. Connecting part; 9. Upper roller; 10. Lower roller; 11. Drive source; 12. Discharge port; 13. Upper seat; 14. Lower seat; 15. Adjusting column; 16. Threaded hole; 17. Operating part; 18. Locking nut; 19. Scale groove; 20. Marking groove; 21. Seat body; 22. Slide; 23. Guide rail; 24. Guide groove; 25. First pressure sensor; 2 6. Guide plate; 27. First motor; 28. First reducer; 29. ​​Pulley; 30. Coupling; 31. Connecting gear; 32. Housing; 33. Conveying screw; 34. Second motor; 35. Second reducer; 36. Pressure plate; 37. Central shaft; 38. First gear; 39. Second gear; 40. Third gear; 41. Spiral blade; 42. Shaper; 43. Housing; 44. Shaping roller; 45. Shaping column; 46. Third motor; 47. Limiting strip. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-12 This application will be described in further detail.

[0030] Example 1: A vertical granulator, such as Figures 1-3 As shown, the device includes a frame 1, a body 2, and a feeding device. The body 2 is mounted on the frame 1. The feeding device includes a screw conveyor 3. In this embodiment, the screw conveyor 3 is a twin-screw conveyor. A feed inlet 4 is formed horizontally through one side of the body 2. A feed hopper 5 is provided at one end of the screw conveyor 3 away from the body 2, and the other end extends into the feed inlet 4 of the body 2. In actual use, the material enters the screw conveyor 3 from the feed inlet 4 and is then continuously conveyed to the feed inlet 4 of the body 2 to achieve feeding.

[0031] like Figures 4-6 As shown, the machine body 2 includes a top seat 6 and a base 7. Both the top seat 6 and the base 7 have a connecting part 8 extending from the side near the feed hopper 5 and are hinged at the connecting part 8. A granulation roller is rotatably connected inside the machine body 2. The surface of the granulation roller is evenly distributed with forming concave holes for forming granulation. The granulation roller includes an upper roller 9 and a lower roller 10. The upper roller 9 is rotatably connected to the top seat 6, and the lower roller 10 is rotatably connected to the base 7. The machine body 2 is provided with a drive source 11 that drives the two granulation rollers to rotate synchronously in opposite directions. A discharge port 12 is formed through the bottom of the machine body 2. In actual use, the material enters from the feed hopper 5 and is conveyed to the feed port 4 of the machine body 2. The material is conveyed between the upper roller 9 and the lower roller 10, and then extrusion granulation is achieved between the upper roller 9 and the lower roller 10. Finally, it is discharged from the discharge port 12.

[0032] like Figures 6-8As shown, an upper seat 13 is hinged to the side of the top seat 6 away from the connecting part 8, and a lower seat 14 is hinged to the side of the base 7 away from the connecting part 8. An adjusting column 15 is provided between the upper seat 13 and the lower seat 14 to connect the two. The bottom end of the adjusting column 15 is rotatably connected to the lower seat 14 and the adjusting column 15 cannot move up or down. The top end of the adjusting column 15 is threaded to the upper seat 13. The upper seat 13 is provided with a threaded hole 16 that is threaded to the adjusting column 15. An operating part 17 is provided in the middle of the adjusting column 15 and is integrally formed with it. The operating part 17 has a polygonal structure. In this embodiment, the operating part 17 is a regular hexagon.

[0033] By setting the granulating rollers on the top seat 6 and the base 7 that are hinged to each other, the gap between the granulating rollers can be adjusted by simply rotating the adjusting column 15 to partially flip the upper seat 13. The structure is simple and has few parts, and the adjustment operation is simple, convenient and stable. The operating part 17 is set so that the adjusting column 15 can be driven to rotate by hand or with the help of a hex wrench.

[0034] like Figures 6-8 As shown, a locking nut 18 is threaded onto the adjusting column 15 to abut against the lower end face of the upper seat 13. After the adjustment column 15 is rotated, the locking nut 18 is rotated to abut against the bottom wall of the upper seat 13, thereby locking the current position and preventing the granulating roller from changing its position later, thus effectively improving the stability of the granulating roller after adjustment.

[0035] like Figures 6-8 As shown, a scale groove 19 with circumferential intervals is provided on the outer wall of the bottom end of the adjusting column 15, and a marking groove 20 corresponding to the scale groove 19 is provided on the lower seat 14. In this way, the accuracy of the granulation roller adjustment can be achieved by using the correspondence between the scale groove 19 and the marking groove 20 when the adjusting column 15 is rotated. In actual adjustment, the distance between the granulation rollers is adjusted by 0.1mm when the adjusting column 15 rotates by the circumferential angle of the adjacent scale groove 19. In other embodiments, multiple small grids can be further set between the adjacent scale grooves 19 to further accurately adjust the distance between the granulation rollers.

[0036] like Figure 9 As shown, the top seat 6 includes a seat body 21 and a slide seat 22. The slide seat 22 is vertically slidably connected inside the seat body 21. A guide rail 23 is vertically arranged inside the seat body 21. The slide seat 22 has a guide groove 24 adapted to the guide rail 23. The upper roller 9 is rotatably connected to the slide seat 22. A first pressure sensor 25 is arranged on the seat body 21. The detection end of the first pressure sensor 25 is connected to the slide seat 22.

[0037] In actual use, the pressure at the point where the granulating roller extrudes and forms the material can be monitored by the first pressure sensor 25, so that the granulating roller can be adjusted in time when the pressure is too high or too low.

[0038] like Figure 5 As shown, the upper roller 9 is located diagonally above the lower roller 10 on the side away from the screw conveyor 3. At the same time, a guide plate 26 is provided at the discharge port of the screw conveyor 3. The guide plate 26 is used to guide the material between the upper roller 9 and the lower roller 10. After the material enters from the horizontal feed port 4, it can be well squeezed between the upper roller 9 and the lower roller 10 to achieve granulation. During this process, the lower roller 10 can play a certain role in receiving the material. Moreover, with the help of a conveying device such as the screw conveyor 3, the material is horizontally fed from the feed port 4 into the granulation rollers in the machine body 2 to achieve extrusion granulation. The material entry speed can be well adjusted and controlled. In addition, the feeding speed can be adjusted according to the characteristics of different materials to achieve better feeding efficiency. Ultimately, the granulation production efficiency is effectively improved, and it can meet the granulation of more different kinds of raw materials, with better applicability and versatility.

[0039] like Figure 1 and Figure 9 As shown, the drive source 11 includes a first motor 27 and a first reducer 28. The output end of the first motor 27 and the input end of the first reducer 28 are connected and driven by a pulley 29 and a belt. The output end of the first reducer 28 is connected to the lower roller 10 through a coupling 30. Connecting gears 31 that mesh with each other are provided at the ends of the lower roller 10 and the upper roller 9. The meshing of the connecting gears 31 enables the upper roller 9 and the lower roller 10 to rotate synchronously in opposite directions, effectively saving the number of drive sources 11 and thus reducing costs.

[0040] like Figures 3-5As shown, the screw conveyor 3 includes a housing 32, a conveying screw 33, a base, and a power source. The power source is mounted on the base and drives the conveying screw 33 to rotate. The conveying screw 33 is rotatably connected inside the housing 32. The power source includes a second motor 34 and a second reducer 35. The output end of the second motor 34 is connected to the input end of the second reducer 35, and the output end of the second reducer 35 is connected to the conveying screw 33. In this embodiment, two conveying screws 33 are arranged in parallel inside the housing 32. A pressure plate 36 is rotatably connected inside the feed hopper 5. The pressure plate has a central shaft 37 in the middle, and a transmission gear is provided between the central shaft 37 and the conveying screw 33 to drive both. The transmission gear includes... The system comprises a first gear 38, a second gear 39, and a third gear 40. The first gear 38 is located at the end of the conveying screw 33 and meshes with each other. The second gear 39 is located on the central shaft 37. The third gear 40 is rotatably connected to the housing 32. One side of the third gear 40 meshes with the first gear 38, and the other side meshes with the second gear 39. The third gear 40 enables synchronous transmission between the central shaft 37 and the conveying screw 33. The output end of the second reducer 35 is connected to one of the conveying screws 33. In this way, only one power source is needed to drive the synchronous rotation of the two conveying screws 33 and the pressure plate 36. The structure is more compact and effectively saves the number of power sources, thereby reducing costs.

[0041] The pressure plate 36 inside the feed hopper 5 can push the material inside between the two conveying screws 33, which can not only push the material but also prevent the material from sticking to the inner wall of the feed hopper 5 and causing bridging.

[0042] like Figure 4 and Figure 5 As shown, the outer wall of the conveying screw 33 has a spiral blade 41, which is arranged in a gradually changing manner. The spiral blade 41 gradually becomes denser from one end near the feed hopper 5 to the other end. In this way, the spiral blade 41 can convey materials while pre-pressing them in advance during rotation, ensuring that the materials have sufficient pressure and density before granulation, and ultimately improving the granulation effect.

[0043] like Figure 1 and Figure 10 As shown, a shaper 42 is provided below the material inlet 12 of the machine body 2. The shaper 42 includes a housing 43 and an internal shaping roller 44. Two shaping rollers 44 are arranged side by side. Multiple evenly distributed shaping columns 45 are radially protruding from the outer wall of the shaping roller 44. A third motor 46 is provided on the housing 43 to drive the two shaping rollers 44 to rotate synchronously in opposite directions. A filter screen is provided through the bottom of the housing 32. After the raw material is granulated, it falls into the shaper 42 for shaping and dispersing. Finally, the raw material particles that meet the particle size requirements are discharged through the filter screen.

[0044] like Figure 5 As shown, in this embodiment, a second pressure sensor is also provided at the conveying end of the screw conveyor 3. With the help of the second pressure sensor, the conveying pressure of the material at the conveying end can be well monitored. Combined with the monitoring of the first pressure sensor 25, it is suitable for the early equipment test use, and can also monitor the material feeding pressure and extrusion molding pressure in real time, so as to ensure that the material is in a good granulation effect and granulation efficiency.

[0045] Example 2, a vertical granulator, such as Figure 11 As shown, the main difference between this embodiment and Embodiment 1 lies in the structure of the adjusting column 15. In this embodiment, a limiting strip 47 is vertically slidably connected within the scale groove 19. The limiting strip 47 is used to engage with the marking groove 20 on the lower seat 14. Thus, when the adjusting column 15 is actually rotated for adjustment, when the position of the scale groove 19 corresponds to the position of the marking groove 20, the limiting strip 47 can slide down into the marking groove 20 under its own gravity to achieve automatic engagement, thereby ensuring that the adjusting column 15 is stably in the current state, and also effectively preventing flatness. In case of accidental touch, the adjusting column 15 may rotate unexpectedly. This achieves automatic limiting after the adjusting column 15 rotates one division of the scale groove 19 circumferential angle each time. In other embodiments, corresponding magnets can be embedded in the top sidewalls of the scale groove 19 and the limiting strip 47. When the limiting strip 47 is not needed for limiting, it can be moved up until the magnet is in the corresponding state. At this time, the limiting strip 47 cannot automatically slide down under the action of gravity due to magnetic attraction, which can meet the needs of more other adjustment occasions and improve the corresponding operation convenience.

[0046] like Figure 12 As shown, in this embodiment, the central shaft 37 on the pressure plate 36 is located in the middle of the feed hopper 5, and the outer walls on both sides of the pressure plate 36 are rounded. When the pressure plate 36 is in a horizontal state, the two sides of the pressure plate 36 extend to the inner wall of the feed hopper 5. In this way, the pressure plate 36 can be used normally to press the material and break up the bridging phenomenon. When the screw conveyor 3 is not in use, it can drive the pressure plate 36 to be in a horizontal state. At this time, the pressure plate 36 can also cover the opening of the feed hopper 5, effectively preventing external debris from accidentally falling into the feed hopper 5, thus realizing the multi-purpose function of the pressure plate 36.

[0047] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A vertical granulator, characterized in that: The machine includes a body (2) and a feeding device. A granulating roller is rotatably connected inside the body (2). The granulating roller includes an upper roller (9) and a lower roller (10). A feed inlet (4) is provided on one side of the body (2) at the connection between the upper roller (9) and the lower roller (10). The feeding device is provided at the feed inlet (4). The upper roller (9) is located obliquely above the lower roller (10) facing away from the feed inlet (4). The bottom of the body (2) has a discharge port (12) and a shaper (42) is provided at the discharge port (12). A drive source (11) is provided on the body (2) to drive the granulating roller to rotate synchronously in the opposite direction.

2. A vertical granulator according to claim 1, characterized in that: The feeding device includes a screw conveyor (3), one end of which is provided with a feed hopper (5) and the other end is provided with a discharge port and a guide plate (26) is provided at the discharge port. The guide plate (26) is used to guide the material between the upper roller (9) and the lower roller (10).

3. A vertical granulator according to claim 1 or 2, characterized in that: The machine body (2) includes a top seat (6) and a base (7). One side of the top seat (6) is hinged to the base (7). The upper roller (9) is rotatably connected to the top seat (6). The lower roller (10) is rotatably connected to the base (7). An upper seat (13) is hinged to the side of the top seat (6) facing away from the hinge. A lower seat (14) is hinged to the side of the base (7) facing away from the hinge. An adjusting column (15) is provided between the upper seat (13) and the lower seat (14) to connect the two. The bottom end of the adjusting column (15) is rotatably connected to the lower seat (14), and the top end of the adjusting column (15) is threaded to the upper seat (13).

4. A vertical granulator according to claim 3, characterized in that: The adjusting column (15) has an operating part (17) integrally disposed therewith, and the operating part (17) has a polygonal structure.

5. A vertical granulator according to claim 3, characterized in that: The adjusting column (15) has a locking nut (18) threadedly connected to it, and the locking nut (18) is used to abut against the end face of the upper seat (13).

6. A vertical granulator according to claim 3, characterized in that: The bottom outer wall of the adjusting column (15) is provided with scale grooves (19) distributed around the circumference, and the lower seat (14) is provided with marking grooves (20) corresponding to the scale grooves (19).

7. A vertical granulator according to claim 3, characterized in that: The top seat (6) includes a seat body (21) and a slide (22). The slide (22) is vertically slidably connected inside the seat body (21). The upper roller (9) is rotatably connected to the slide (22). A first pressure sensor (25) is provided on the seat body (21), and the detection end of the first pressure sensor (25) is connected to the slide (22).

8. A vertical granulator according to claim 2, characterized in that: The screw conveyor (3) includes a housing (32) and a conveying screw (33). The conveying screw (33) is rotatably connected inside the housing (32). The outer wall of the conveying screw (33) has helical blades (41). The helical blades (41) are arranged in a gradually changing pattern, and the helical blades (41) gradually become denser from one end near the feed hopper (5) to the other end.

9. A vertical granulator according to claim 8, characterized in that: The screw conveyor (3) also includes a base, on which a power source is provided to drive the conveying screw (33) to rotate. There are two conveying screws (33) arranged side by side in the housing (32). A pressure plate (36) is rotatably connected in the feed hopper (5). The pressure plate (36) has a central shaft (37). A transmission gear is provided between the central shaft (37) and the conveying screw (33) to drive the two.

10. A vertical granulator according to claim 2, characterized in that: The screw conveyor (3) is equipped with a second pressure sensor at its conveying end.

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