Compression roller assembly of vertical type circular mould granulator and vertical type circular mould granulator

Abstract

The compression roller assembly of the vertical type circular mould granulator comprises an eccentric compression roller piece and an adjusting assembly, after a driving force is applied to an adjusting rod, a rotating shaft is driven to rotate through an adjusting plate, and the eccentric compression roller piece is driven to rotate through the adjusting assembly. A gap between the eccentric compression roller piece and a mold on the vertical ring mold granulator is adjusted; and a thinning groove is formed in the adjusting rod. Therefore, the thinning groove is formed in the adjusting rod, the structural strength of the adjusting rod on the part can be reduced through the thinning groove, and the adjusting rod is prone to breakage at the position of the thinning groove or near the position of the thinning groove after being subjected to external force exceeding the preset size; therefore, the eccentric compression roller piece or the mold can be prevented from being damaged due to continuous high-strength confrontation between the eccentric compression roller piece and the mold, so that the structural reliability of the eccentric compression roller piece and the mold can be improved, and the service life of the eccentric compression roller piece and the mold can be prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of vertical ring die pellet mills, and in particular to a pressure roller assembly for a vertical ring die pellet mill and a vertical ring die pellet mill. Background Technology

[0002] Vertical ring die pellet mill is a type of biomass energy equipment. Its main structure is that the die is stationary, and the main shaft drives the pressure roller to rotate. Biomass powder can be formed by extrusion between the pressure roller and the die. This structure is stable in operation and has a high output. However, after a period of use, due to wear on the pressure roller and the die, the gap between them will gradually increase, and the output will gradually decrease. The temperature of the pressure roller bearing will also gradually rise due to the reduced heat carried away by the material as the output decreases. Therefore, it is necessary to adjust the gap between the pressure roller and the die.

[0003] In the prior art, by setting the pressure roller as an eccentric pressure roller, the gap between the eccentric pressure roller and the mold can be adjusted by applying an external force to the adjusting plate to make the eccentric pressure roller rotate. However, since the gap between the two is relatively small, sometimes jamming occurs. After the eccentric pressure roller and the mold jam, the external force applied to the adjusting plate will often be increased. This can easily lead to continuous high-intensity confrontation between the eccentric pressure roller and the mold, resulting in damage to the eccentric pressure roller and / or the mold. Utility Model Content

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a pressure roller assembly for a vertical ring die pellet mill, which can effectively improve the structural reliability of the pressure rollers and the die of the vertical ring die pellet mill, and can extend the service life of the vertical ring die pellet mill.

[0005] This utility model further proposes a vertical ring die pellet mill.

[0006] The pressure roller assembly of the vertical ring die pellet mill according to an embodiment of the present invention includes: an eccentric pressure roller component, the eccentric pressure roller component being provided with a rotating shaft, the axis of the rotating shaft being offset from the center of the eccentric pressure roller component, the rotating shaft being adapted to be rotatably mounted on the vertical ring die pellet mill; an adjustment assembly, the adjustment assembly including an adjustment plate and an adjustment rod, one end of the adjustment plate being connected to the rotating shaft, and the other end of the adjustment plate being connected to the adjustment rod, wherein after applying a driving force to the adjustment rod, the rotating shaft is driven to rotate through the adjustment plate to adjust the gap between the eccentric pressure roller component and the die on the vertical ring die pellet mill; the adjustment rod being provided with a thinning groove.

[0007] Therefore, by setting a thinning groove on the adjusting rod, the structural strength of the adjusting rod in this part can be reduced. When an external force is applied to the adjusting rod, driving the adjusting plate to drive the eccentric pressure roller to rotate, thereby adjusting the gap between the eccentric pressure roller and the mold, a jamming phenomenon will occur between the eccentric pressure roller and the mold. In this way, when the adjusting rod is subjected to an external force exceeding the preset size, it is easy to break at or near the thinning groove. This can prevent the eccentric pressure roller and the mold from being damaged due to continuous high-intensity confrontation. Thus, the structural reliability of the eccentric pressure roller and the mold can be improved, and the service life of the eccentric pressure roller and the mold can be extended.

[0008] In some examples of this invention, the thinning groove is annular and is arranged circumferentially around the adjusting rod.

[0009] In some examples of this utility model, the thinning groove is disposed at one end of the adjusting rod adjacent to the adjusting plate in the length direction.

[0010] In some examples of this utility model, the radius of the adjusting rod is set to 'a', and the depth of the thinning groove is set to 'b', where a and b satisfy the relationship: 0.2a ≤ b ≤ 0.5a.

[0011] In some examples of this utility model, there are multiple thinning grooves, and the multiple thinning grooves are arranged circumferentially at intervals on the adjusting rod.

[0012] In some examples of this utility model, a limiting member is sleeved on the adjusting rod, and the limiting member is adapted to be detachably limited in position with the vertical ring die pellet mill.

[0013] In some examples of this utility model, the adjusting rod is provided with a locking member, which selectively locks the limiting member.

[0014] In some examples of this utility model, the locking member is a locking nut, the adjusting rod is a screw, the locking nut is sleeved on the screw and threaded with the screw, the locking nut is movable on the screw, and locking nuts are provided on both sides of the limiting member. The two locking nuts selectively approach the limiting member to selectively lock the limiting member.

[0015] In some examples of this utility model, the eccentric pressure roller also includes an alarm, and a temperature sensor is provided on the eccentric pressure roller. The temperature sensor is adapted to detect the temperature of the eccentric pressure roller and is electrically connected to the alarm.

[0016] The vertical ring die pellet mill according to an embodiment of the present invention includes: the pressure roller assembly of the above-mentioned vertical ring die pellet mill.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of a vertical ring die pellet mill according to an embodiment of the present utility model;

[0020] Figure 2 This is a partial schematic diagram of a vertical ring die pellet mill according to an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the adjustment component according to an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the adjusting rod according to an embodiment of the present utility model;

[0023] Figure 5 yes Figure 4 A schematic diagram of region A in the middle.

[0024] Figure label:

[0025] 1000, Vertical ring die pellet mill;

[0026] 100. Pressure roller assembly;

[0027] 10. Eccentric pressure roller; 11. Rotating shaft;

[0028] 20. Adjustment component; 21. Adjustment plate; 22. Adjustment rod; 221. Thinning groove; 222. Limiting component; 223. Locking component. Detailed Implementation

[0029] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0030] The following is for reference. Figures 1-5 The present invention describes a pressure roller assembly 100 of a vertical ring die pellet mill 1000 according to an embodiment of the present invention. The pressure roller assembly 100 of the vertical ring die pellet mill 1000 can be applied to the vertical ring die pellet mill 1000.

[0031] Combination Figures 1-5As shown, the pressure roller assembly 100 of the vertical ring die pellet mill 1000 according to this utility model can mainly include: an eccentric pressure roller component 10 and an adjustment component 20. The eccentric pressure roller component 10 is provided with a rotating shaft 11. The axis of the rotating shaft 11 is offset from the center of the eccentric pressure roller component 10. The rotating shaft 11 is adapted to be rotatably mounted on the vertical ring die pellet mill 1000. The adjustment component 20 includes an adjustment plate 21 and an adjustment rod 22. One end of the adjustment plate 21 is connected to the rotating shaft 11, and the other end of the adjustment plate 21 is connected to the adjustment rod 22. After applying a driving force to the adjustment rod 22, the rotating shaft 11 is driven to rotate through the adjustment plate 21 to adjust the gap between the eccentric pressure roller component 10 and the die on the vertical ring die pellet mill 1000. The adjustment rod 22 is provided with a thinning groove 221.

[0032] Specifically, by setting the rotating shaft 11 of the eccentric pressure roller 10 to be offset from the center of the eccentric pressure roller 10, when the eccentric pressure roller 10 is applied to the vertical ring die pellet mill 1000, and the biomass material between the eccentric pressure roller 10 and the die of the vertical ring die pellet mill 1000 is squeezed by the eccentric pressure roller 10 for a long time, the eccentric pressure roller 10 and / or the die of the vertical ring die pellet mill 1000 will wear, thereby increasing the gap between the eccentric pressure roller 10 and the die of the vertical ring die pellet mill 1000. The squeezing force of the eccentric pressure roller 10 on the biomass material will decrease or even disappear, resulting in a decrease in the output of biomass products. As the output of biomass products decreases, the heat carried away by the biomass products decreases, which will cause the bearing temperature of the eccentric pressure roller 10 to rise and the reliability to decrease.

[0033] Therefore, by connecting one end of the adjusting plate 21 to the rotating shaft 11 and the other end to the adjusting rod 22, the gap between the eccentric pressure roller 10 and the die of the vertical ring die pellet mill 1000 increases. When the output of biomass products decreases, an external force can be applied to the adjusting rod 22, which causes the adjusting plate 21 to drive the rotating shaft 11 of the eccentric pressure roller 10 to rotate. Since the axis of the rotating shaft 11 is offset from the center of the eccentric pressure roller 10, the gap between the eccentric pressure roller 10 and the die can be reduced, thereby restoring the extrusion force of the eccentric pressure roller 10 on the biomass material, and thus restoring the output of the vertical ring die pellet mill 1000.

[0034] It should be noted that when the eccentric pressure roller 10 is positioned opposite the mold at the part closest to the rotating shaft 11, and the gap between the eccentric pressure roller 10 and the mold is still too large, and the output of biomass materials is still low, it is necessary to replace the eccentric pressure roller 10 or the mold.

[0035] In some embodiments of this utility model, due to the small gap between the eccentric pressure roller 10 and the mold, jamming sometimes occurs, especially when there are hard foreign objects in the biomass material. The eccentric pressure roller 10 and the mold are jammed by the hard foreign objects. At this time, if the external force applied to the adjusting rod 22 is increased, the eccentric pressure roller 10 and the mold are easily damaged due to the high-intensity resistance and cannot be used.

[0036] Therefore, by providing a thinning groove 221 on the adjusting rod 22, the local thickness of the adjusting rod 22 can be reduced, thereby reducing the structural strength of the adjusting rod 22 at the corresponding thinning groove 221. When the external force applied to the adjusting rod 22 exceeds the preset size, the adjusting rod 22 will break at the part corresponding to the thinning groove 221, or the adjusting rod 22 will break at the part near the corresponding thinning groove 221. This can prevent damage caused by the high-strength confrontation between the eccentric pressure roller 10 and the mold, and can improve the structural reliability of the eccentric pressure roller 10 and the mold.

[0037] It should be noted that, compared to reducing the overall thickness of the adjusting rod 22 to decrease its overall strength, this design ensures stable adjustment of the eccentric pressure roller 10 by the adjusting rod 22. It prevents the adjusting rod 22 from breaking when the foreign object stuck between the eccentric pressure roller 10 and the mold has low hardness and low resistance strength, thus not affecting the structural reliability of the eccentric pressure roller 10 and the mold. This further improves the structural reliability of the pressure roller assembly 100 of the vertical ring die pellet mill 1000 of this invention.

[0038] In addition, after the eccentric pressure roller 10 is adjusted by the adjustment component 20, the gap between it and the mold should not be too small. Otherwise, it may cause the eccentric pressure roller 10 and the mold to get stuck when the biomass material is fed, resulting in high-intensity resistance between the eccentric pressure roller 10 and the mold, and damage to the eccentric pressure roller 10 and / or the mold. The gap between the eccentric pressure roller 10 and the mold should be adjusted appropriately to avoid this situation.

[0039] It should be noted that the adjusting rod 22 and the adjusting plate 21 are detachably connected and fixed. If the adjusting rod 22 breaks, the adjusting rod 22 and the adjusting plate 21 can be disassembled and a new adjusting rod 22 can be connected to the adjusting plate 21.

[0040] Therefore, by providing a thinning groove 221 on the adjusting rod 22, the thinning groove 221 can reduce the structural strength of the adjusting rod 22 in this part. When an external force is applied to the adjusting rod 22, driving the adjusting plate 21 to drive the eccentric pressure roller 10 to rotate, thereby adjusting the gap between the eccentric pressure roller 10 and the mold, a jamming phenomenon will occur between the eccentric pressure roller 10 and the mold. In this way, when the adjusting rod 22 is subjected to an external force exceeding the preset size, it is easy to break at or near the thinning groove 221. This can prevent the eccentric pressure roller 10 and the mold from being damaged due to continuous high-intensity confrontation. Thus, the structural reliability of the eccentric pressure roller 10 and the mold can be improved, and the service life of the eccentric pressure roller 10 and the mold can be extended.

[0041] In some embodiments of this utility model, combined with Figure 4 and Figure 5 As shown, the thinning groove 221 is annular and surrounds the adjusting rod 22 circumferentially. Specifically, by making the thinning groove 221 annular and surrounding the adjusting rod 22 circumferentially, the reduction of the strength of the adjusting rod 22 circumferentially by the thinning groove 221 is more uniform. This ensures that the adjusting rod 22 can break in time when subjected to external forces exceeding a preset magnitude in different directions, preventing uneven strength distribution of the adjusting rod 22 at the thinning groove 221, which could prevent the adjusting rod 22 from failing to break properly and causing damage to the eccentric pressure roller 10 and the mold.

[0042] Combination Figure 1 and Figure 3 As shown, the thinning groove 221 is located at one end of the adjusting rod 22 adjacent to the adjusting plate 21 along its length. Specifically, by placing the thinning groove 221 at one end of the adjusting rod 22 adjacent to the adjusting plate 21 along its length, it is convenient to apply external force to the adjusting rod 22. This prevents the thinning groove 221 from being too close to the end of the adjusting rod 22 that is far from the adjusting plate 21 along its length, which would prevent the application of external force to the adjusting rod 22 normally, or prevent the application of external force from being located between the thinning groove 221 and the end of the adjusting rod 22 adjacent to the adjusting plate 21 along its length. According to the lever principle, the portion of the adjusting rod 22 corresponding to the thinning groove 221 will not break.

[0043] Furthermore, based on the lever principle, by setting the thinning groove 221 at one end of the adjusting rod 22 adjacent to the adjusting plate 21 in the length direction, the difficulty of the adjusting rod 22 breaking at or near the thinning groove 221 can be reduced, and the eccentric pressure roller 10 and the mold can be further guaranteed not to be damaged.

[0044] In some embodiments of this utility model, combined with Figure 5As shown, the radius of the adjusting rod 22 is set to 'a', and the depth of the thinning groove 221 is set to 'b'. 'a' and 'b' satisfy the relationship: 0.2a ≤ b ≤ 0.5a. Specifically, by setting the depth of the thinning groove 221 within a reasonable range, it not only prevents the depth of the thinning groove 221 from being too large, which would result in insufficient strength of the adjusting rod 22 in the corresponding portion of the thinning groove 221, causing the adjusting rod 22 to fail to properly drive the adjusting plate 21 to rotate the eccentric pressure roller 10, but also prevents the depth of the thinning groove 221 from being too small, which would reduce the weakening effect of the thinning groove 221 on the strength of the adjusting rod 22 in the corresponding portion of the thinning groove 221. Therefore, the adjusting rod 22 is less prone to breakage when there is a strength conflict between the eccentric pressure roller 10 and the mold, thus further improving the structural strength of the adjusting rod 22.

[0045] In other embodiments of the present invention, there are multiple thinning grooves 221, which are circumferentially spaced on the adjusting rod 22. This allows the multiple thinning grooves 221 to uniformly weaken the strength of the adjusting rod 22 while ensuring the basic strength of the adjusting rod 22, thereby further improving the structural reliability of the adjusting rod 22.

[0046] It should be noted that when the depth of the thinning groove 221 is the same, the strength reduction effect of multiple thinning grooves 221 arranged circumferentially on the adjusting rod 22 and the thinning groove 221 arranged in a ring and circumferentially around the adjusting rod 22 is different. That is, the thinning groove 221 arranged in a ring and circumferentially around the adjusting rod 22 has a greater strength reduction effect on the adjusting rod 22. When there are multiple thinning grooves 221 arranged circumferentially on the adjusting rod 22, the strength reduction effect on the adjusting rod 22 can be increased by increasing the depth of the thinning groove 221.

[0047] Combination Figure 3 As shown, a limiting member 222 is sleeved on the adjusting rod 22, and the limiting member 222 is adapted to be detachably limited and engaged with the vertical ring die pellet mill 1000. Specifically, when the adjusting assembly 20 does not need to adjust the position of the eccentric pressure roller 10, that is, when the vertical ring die pellet mill 1000 is working normally, the limiting member 222 on the adjusting rod 22 can be engaged with the vertical ring die pellet mill 1000 to prevent the adjusting rod 22 from moving and affecting the normal operation of the vertical ring die pellet mill 1000. This can further improve the reliability of the pressure roller assembly 100 of the vertical ring die pellet mill 1000.

[0048] When the adjustment assembly 20 needs to adjust the position of the eccentric pressure roller 10, the limiting member 222 can be removed from the vertical ring die pellet mill 1000, so that the limiting member 222 and the vertical ring die pellet mill 1000 are disconnected, thereby applying an external force to the adjusting rod 22 to move it, thereby driving the adjusting plate 21 to drive the eccentric pressure roller 10 to rotate.

[0049] Combination Figure 3 As shown, a locking element 223 is provided on the adjusting rod 22, which selectively locks the limiting element 222. Specifically, by providing a locking element 223 on the adjusting rod 22 and making the locking element 223 selectively lock the limiting element 222, when the adjusting assembly 20 does not need to adjust the position of the eccentric pressure roller 10, the limiting element 222 can be detachably limited and engaged with the vertical ring die pellet mill 1000. The locking element 223 locks the limiting element 222, which can further prevent the limiting element 222 from moving and can further ensure the stability and reliability of the limited engagement between the limiting element 222 and the vertical ring die pellet mill 1000.

[0050] Combination Figure 3 As shown, the locking element 223 is a locking nut, and the adjusting rod 22 is a screw. The locking nut is sleeved on the screw and threaded with it, allowing it to move on the screw. Locking nuts are provided on both sides of the limiting element 222, selectively approaching the limiting element 222 to selectively lock it. Specifically, by setting the locking element 223 as a locking nut and the adjusting rod 22 as a screw, and by providing locking nuts on both sides of the limiting element 222, the two locking nuts can move on the screw through rotation by threading with it. The two locking nuts can also lock the limiting element 222 by approaching it and pressing it together. This not only improves the locking effect of the locking element 223 on the limiting element 222 but also simplifies the structure of the locking element 223 and reduces its installation cost.

[0051] In some embodiments of this utility model, the pressure roller assembly 100 of the vertical ring die pellet mill 1000 also includes an alarm. A temperature sensor is provided on the eccentric pressure roller 10, which is suitable for detecting the temperature of the eccentric pressure roller 10. The temperature sensor is electrically connected to the alarm. Specifically, by providing a temperature sensor on the eccentric pressure roller 10, the temperature sensor can detect the temperature of the eccentric pressure roller 10. When the temperature value detected by the temperature sensor exceeds a preset value, the gap between the eccentric pressure roller 10 and the die may increase, resulting in a decrease in the output of the biomass material. This leads to less heat being carried away by the biomass material, causing the temperature of the eccentric pressure roller 10 to exceed the preset value. The alarm is electrically connected to the temperature sensor, and when the temperature value detected by the temperature sensor exceeds the preset value, the alarm can sound an alarm to remind the operator that the gap between the eccentric pressure roller 10 and the die needs to be adjusted.

[0052] It should be noted that if the temperature value detected by the temperature sensor exceeds the preset value, it may also be due to other reasons. When the alarm sounds and the operator checks that the gap between the eccentric pressure roller 10 and the mold meets the requirements, it is necessary to check other structures of the vertical ring die pellet mill 1000 to more comprehensively eliminate the causes of the temperature rise of the eccentric pressure roller 10.

[0053] The vertical ring die pellet mill 1000 according to this utility model may mainly include: the pressure roller assembly 100 of the vertical ring die pellet mill 1000. Applying the pressure roller assembly 100 of the vertical ring die pellet mill 1000 to the vertical ring die pellet mill 1000 can improve the structural reliability of the vertical ring die pellet mill 1000.

[0054] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0056] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A compression roller assembly for a vertical ring die granulator, characterized by, The eccentric compression roller comprises a rotating shaft, the axis of the rotating shaft is offset from the center of the eccentric compression roller, and the rotating shaft is adapted to be rotatably arranged on the vertical ring die granulator. The adjusting assembly comprises an adjusting plate and an adjusting rod, one end of the adjusting plate is connected with the rotating shaft, the other end of the adjusting plate is connected with the adjusting rod, and the rotating shaft is driven to rotate by the adjusting plate to adjust the gap between the eccentric compression roller and the die on the vertical ring die granulator after a driving force is applied to the adjusting rod. The thinning groove is annular and circumferentially arranged on the adjusting rod. The thinning groove is arranged at one end of the adjusting rod adjacent to the adjusting plate in the length direction of the adjusting rod.

2. The compression roller assembly of a vertical ring die granulator according to claim 1, characterized in that, The radius of the adjusting rod is set as a, the recess depth of the thinning groove is set as b, and a and b satisfy the relationship: 0.2a≤b≤0.5a.

3. The compression roller assembly of a vertical ring die granulator according to claim 1, wherein, The thinning groove is annular and circumferentially arranged on the adjusting rod.

4. The compression roller assembly of a vertical ring die granulator according to claim 1, wherein, The adjusting rod is sleeved with a limiting piece, and the limiting piece is adapted to be detachably limited with the vertical ring die granulator.

5. The compression roller assembly of a vertical ring die granulator as claimed in claim 1, wherein, The adjusting rod is provided with a locking piece, and the locking piece selectively locks the limiting piece.

6. The compression roller assembly of a vertical ring die granulator as claimed in claim 1, wherein, The locking piece is a locking nut, the adjusting rod is a screw rod, the locking nut is sleeved on the screw rod and threadedly connected with the screw rod, the locking nut is movable on the screw rod, and the limiting piece is provided with locking nuts on both sides, and the two locking nuts selectively approach the limiting piece to selectively lock the limiting piece.

7. The compression roller assembly of a vertical ring die granulator according to claim 6, characterized in that, The alarm is further provided with a temperature sensor, the temperature sensor is adapted to detect the temperature of the eccentric compression roller, and the temperature sensor is electrically connected with the alarm.

8. The compression roller assembly of a vertical ring die granulator according to claim 7, characterized in that, The vertical ring die granulator comprises the compression roller assembly of any one of claims 1-9.

9. The compression roller assembly of a vertical ring die granulator as claimed in claim 1, wherein, The vertical ring die granulator comprises the compression roller assembly of any one of claims 1-9.

10. A vertical ring die granulator characterized by ​ ​

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