Biomass pellet fuel granulator

Abstract

The utility model discloses a biomass pellet fuel granulator which comprises a granulating bin, a main shaft is arranged at the position of a central shaft of the granulating bin, a press roll shaft is installed on the main shaft, a press roll is rotatably installed on the press roll shaft, a flat die disc is arranged below the press roll and comprises an upper die disc and a lower die disc, the upper die disc is fixedly installed inside the granulating bin, an upper die hole is formed in the upper die disc, and a lower die hole is formed in the lower die disc. A lower mold disc is coaxially and rotatably mounted at the bottom of the upper mold disc, a lower mold hole is formed in the lower mold disc, an adjusting block is arranged on the side wall of the lower mold disc, a through hole is formed in the side wall of the granulation bin, one end of the adjusting block penetrates through the through hole and extends to the outside of the granulation bin, fixing blocks are mounted at the two ends of the through hole, and the adjusting block can be pushed to move between the two fixing blocks by rotating an adjusting bolt; therefore, the lower mold disc can be driven to rotate at the bottom of the upper mold disc so as to adjust the relative position of the upper mold hole and the lower mold hole, particles of different specifications can be pressed, flat mold discs of different specifications do not need to be replaced, and the problems that operation is troublesome, and consumed time is long are solved.

Description

Technical Field

[0001] This utility model relates to the field of pellet mill technology, and in particular to a biomass pellet fuel pellet mill. Background Technology

[0002] A pellet mill is a device that forms granular products from various materials through extrusion, friction, shearing, and other processes. Pellet mills are divided into flat die pellet mills and ring die pellet mills. Existing flat die pellet mills require adjustment of the particle size during use. However, in current technology, adjusting the particle size requires replacing the flat die disc, which is not only cumbersome but also time-consuming. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a biomass pellet fuel pellet machine. This invention solves the technical problem that in the existing flat die pellet machine, when adjusting the pellet size, it is necessary to replace the flat die plate to achieve the adjustment of the pellet size. The above adjustment method is not only relatively troublesome to operate, but also time-consuming.

[0004] To achieve the above technical objectives, the present invention provides a biomass pellet fuel pellet mill, including a pelleting bin. A main shaft is located at the central axis of the pelleting bin, and a pressure roller shaft is mounted on the main shaft. A pressure roller is rotatably mounted on the pressure roller shaft. A flat die plate is located below the pressure roller, and the flat die plate includes an upper die plate and a lower die plate. The upper die plate is fixedly installed inside the pelleting bin and has an upper die hole. A lower die plate is rotatably mounted coaxially at the bottom of the upper die plate and has a lower die hole. An adjusting block is provided on the side wall of the lower die plate, and a through hole is provided on the side wall of the pelleting bin. One end of the adjusting block passes through the through hole and extends to the outside of the pelleting bin. Fixed blocks are installed at both ends of the through hole, and adjusting bolts are threaded onto both fixed blocks. By rotating the adjusting bolts, the adjusting block can be moved between the two fixed blocks, thereby driving the lower die plate to rotate at the bottom of the upper die plate to adjust the relative position of the upper die hole and the lower die hole.

[0005] Furthermore, the fixing block has a first threaded hole inside, and the adjusting bolt is threaded into the first threaded hole. The first threaded hole also has a ball bearing inside.

[0006] Furthermore, the fixing block is also provided with a second threaded hole that communicates with the first threaded hole, and a tightening bolt is threadedly connected inside the second threaded hole.

[0007] Furthermore, the bottom of the upper mold plate is provided with an annular rotating groove, and the bottom of the lower mold plate is provided with an annular rotating block that is rotatably disposed inside the annular rotating groove.

[0008] Furthermore, the spindle is connected to a drive unit for driving the spindle to rotate.

[0009] Furthermore, a feed hopper is installed at the top of the pelleting silo.

[0010] Furthermore, a cutting blade is installed on the main spindle located below the flat die plate.

[0011] Furthermore, a receiving plate is installed below the cutting blade, the receiving plate has a feeding hole, a guide plate is installed below the feeding hole, and a discharge hole is provided on the side wall of the granulation chamber. One end of the guide plate extends out from the inside of the granulation chamber through the discharge hole.

[0012] The beneficial effects of this utility model include: This utility model provides a biomass pellet fuel pellet machine, which can drive the adjusting block to rotate between two fixed blocks by rotating the adjusting bolt, thereby driving the lower die plate to rotate at the bottom of the upper die plate to adjust the relative position of the upper die hole and the lower die hole, so as to press out pellets of different sizes without the need to replace flat die plates of different sizes, thus avoiding the problems of complicated operation and long time consumption. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a biomass pellet fuel pellet machine according to an embodiment of the present invention;

[0014] Figure 2 This is a partial structural schematic diagram of a biomass pellet fuel pellet machine according to an embodiment of the present invention;

[0015] Figure 3 This is a schematic diagram of the flat mold plate structure according to an embodiment of the present utility model;

[0016] Figure 4 yes Figure 1 Enlarged view of point A;

[0017] Figure 5 yes Figure 1 Sectional view at point A;

[0018] In the diagram: 1. Granulation bin; 11. Through hole; 12. Fixing block; 121. First threaded hole; 122. Second threaded hole; 13. Adjusting bolt; 14. Ball bearing; 15. Tightening bolt; 16. Discharge hole; 2. Main shaft; 3. Pressure roller shaft; 4. Pressure roller; 5. Flat die plate; 51. Upper die plate; 511. Upper die hole; 512. Annular rotating groove; 52. Lower die plate; 521. Lower die hole; 522. Adjusting block; 523. Annular rotating block; 6. Drive device; 7. Feed hopper; 8. Cutting blade; 9. Receiving plate; 91. Discharge hole; 92. Guide plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] This utility model embodiment provides a biomass pellet fuel pellet machine, such as Figure 1-2 As shown, the granulation chamber includes a pelleting bin 1, a main shaft 2 located at the central axis of the pelleting bin 1, a pressure roller shaft 3 mounted on the main shaft 2, a pressure roller 4 rotatably mounted on the pressure roller shaft 3, a flat die plate 5 located below the pressure roller 4, and the main shaft 2 connected to a drive device 6 for driving the rotation of the main shaft 2. The drive device 6 is one of an electric motor, a hydraulic motor, or a pneumatic motor. A feed hopper 7 is located at the top of the pelleting bin 1. A cutting blade 8 is mounted on the main shaft 2 below the flat die plate 5. The cutting blade 8 has a cutting edge on its upper side, and a receiving plate 9 is mounted below the cutting blade 8. The receiving plate 9 has a discharge hole 91, and a guide plate 92 is mounted below the discharge hole 91. A discharge hole is located on the side wall of the pelleting bin 1. 16. One end of the guide plate 92 extends out from the inside of the pelleting chamber 1 through the discharge hole 16. The raw material can be poured into the pelleting chamber 1 through the feed hopper 7. The drive device 6 can drive the main shaft 2 to rotate. The main shaft 2 can drive the pressure roller shaft 3 to rotate, thereby driving the pressure roller 4 to rotate on the top of the flat die plate 5 to press the raw material into strip-shaped material. At the same time, the main shaft 2 can drive the cutting blade 8 to rotate, cutting the strip-shaped material into granules and falling onto the receiving plate 9. When the cutting blade 8 rotates, it can push the granules on the receiving plate 9 to the discharge hole 91 and fall onto the discharge plate 92 through the discharge hole 91. The granules on the discharge plate 92 can roll out from the inside of the pelleting chamber 1 along the discharge plate 92.

[0021] In this embodiment, as Figure 3-5As shown, the flat die plate 5 includes an upper die plate 51 and a lower die plate 52. The upper die plate 51 is fixedly installed inside the pelletizing chamber 1. The upper die plate 51 is provided with upper die holes 511, which include multiple rows of holes evenly arranged in a ring around the central axis of the upper die plate 51. Each row of upper die holes 511 includes multiple holes evenly spaced along the diameter direction of the upper die plate 51. The lower die plate 52 is coaxially rotatably mounted on the bottom of the upper die plate 51. The lower die plate 52 is provided with lower die holes 521, which include multiple rows of holes evenly arranged in a ring around the central axis of the lower die plate 52. Each row of lower die holes 521 includes multiple holes evenly spaced along the diameter direction of the lower die plate 52. Multiple adjustment blocks 522 are provided on the side wall of the lower mold plate 52, and through holes 11 are provided on the side wall of the pelleting chamber 1. One end of the adjustment block 522 passes through the through hole 11 and extends to the outside of the pelleting chamber 1. Fixing blocks 12 are installed at both ends of the through hole 11. Adjusting bolts 13 are threadedly connected to the two fixing blocks 12. By rotating the adjusting bolts 13, the adjustment block 522 can be pushed to rotate between the two fixing blocks 12, thereby driving the lower mold plate 52 to rotate at the bottom of the upper mold plate 51 to adjust the relative position of the upper mold hole 511 and the lower mold hole 521. Particles of different sizes can be pressed out without replacing flat mold plates 5 of different sizes, avoiding the problems of complicated operation and long time consumption.

[0022] It should be noted that the bottom of the upper mold plate 51 is provided with an annular rotating groove 512, and the bottom of the lower mold plate 52 is provided with an annular rotating block 523 rotatably disposed inside the annular rotating groove 512. The cross-section of both the annular rotating groove 512 and the annular rotating block 523 is a T-shaped structure, so as to realize the rotatable installation of the lower mold plate 52 on the bottom of the upper mold plate 51.

[0023] In this embodiment, the fixed block 12 is provided with a first threaded hole 121 inside, and the adjusting bolt 13 is threadedly connected to the first threaded hole 121. The first threaded hole 131 is also provided with a ball bearing 14. When the adjusting bolt 13 is rotated, the ball bearing 14 can be pressed against the adjusting block 522 so that the adjusting bolt 13 can effectively push the adjusting block 522 to rotate between the two fixed blocks 12. At the same time, the fixed block 12 is also provided with a second threaded hole 122 that communicates with the first threaded hole 121. The second threaded hole 122 is threadedly connected with a tightening bolt 15. The tightening bolt 15 can tighten and fix the adjusting bolt 13 inside the first threaded hole 121 after the adjusting bolt 13 is adjusted, which can prevent the adjusting bolt 13 from loosening during the pelletizing process.

[0024] Specific principle: Before granulation, loosen the tightening bolt 15 and rotate the adjusting bolt 13. The adjusting bolt 13 can push the adjusting block 522 to rotate between the two fixed blocks 12, thereby driving the lower die plate 52 to rotate at the bottom of the upper die plate 51 to adjust the relative position of the upper die hole 511 and the lower die hole 521. After adjustment, the adjusting bolt 13 is fixed inside the first threaded hole 121 by the tightening bolt 15 to fix the relative position of the upper die hole 511 and the lower die hole 521. During granulation, the raw material is poured into the feed hopper 7. Inside the pelleting chamber 1, the drive device 6 can drive the main shaft 2 to rotate, which in turn drives the pressure roller shaft 3 to rotate, thereby driving the pressure roller 4 to rotate on the top of the flat die plate 5, pressing the raw material into strip-shaped material. At the same time, the main shaft 2 can drive the cutting blade 8 to rotate, cutting the strip-shaped material into granules and dropping them onto the receiving plate 9. When the cutting blade 8 rotates, it can push the granules on the receiving plate 9 to the discharge hole 91, and then drop them onto the discharge plate 92. The granules on the discharge plate 92 can roll out from inside the pelleting chamber 1 along the discharge plate 92.

[0025] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A biomass pellet fuel pellet mill, comprising a pelleting bin (1), wherein a main shaft (2) is provided at the central axis of the pelleting bin (1), a pressure roller shaft (3) is mounted on the main shaft (2), a pressure roller (4) is rotatably mounted on the pressure roller shaft (3), and a flat die plate (5) is provided below the pressure roller (4), characterized in that: The flat die plate (5) includes an upper die plate (51) and a lower die plate (52). The upper die plate (51) is fixedly installed inside the pelleting chamber (1). The upper die plate (51) has an upper die hole (511). The lower die plate (52) is coaxially rotatably mounted on the bottom of the upper die plate (51). The lower die plate (52) has a lower die hole (521). The side wall of the lower die plate (52) is provided with an adjusting block (522). The side wall of the pelleting chamber (1) is provided with a through hole (11). The adjusting block (522) One end passes through the through hole (11) and extends to the outside of the pelleting chamber (1). Both ends of the through hole (11) are equipped with fixing blocks (12). Adjusting bolts (13) are threaded onto both fixing blocks (12). By rotating the adjusting bolts (13), the adjusting block (522) can be pushed to move between the two fixing blocks (12), thereby driving the lower mold plate (52) to rotate at the bottom of the upper mold plate (51) to adjust the relative position of the upper mold hole (511) and the lower mold hole (521).

2. The biomass pellet fuel pelletizer according to claim 1, wherein, The fixing block (12) has a first threaded hole (121) inside, and the adjusting bolt (13) is threaded into the first threaded hole (121). The first threaded hole (121) also has a ball (14) inside.

3. The biomass pellet fuel pelletizer according to claim 2, wherein, The fixing block (12) is also provided with a second threaded hole (122) that communicates with the first threaded hole (121), and a tightening bolt (15) is threadedly connected inside the second threaded hole (122).

4. The biomass pellet fuel pelletizer according to claim 1, wherein, The bottom of the upper mold plate (51) is provided with an annular rotating groove (512), and the bottom of the lower mold plate (52) is provided with an annular rotating block (523) that is rotatably disposed inside the annular rotating groove (512).

5. The biomass pellet fuel pelletizer according to claim 1, wherein, The spindle (2) is connected to a drive device (6) for driving the spindle (2) to rotate.

6. The biomass pellet fuel pelletizer according to claim 1, wherein, The pelleting bin (1) is equipped with a feed hopper (7) at the top.

7. The biomass pellet fuel pelletizer according to claim 1, wherein, The main shaft (2) is equipped with a cutting blade (8) located below the flat mold plate (5).

8. The biomass pellet fuel pelletizer according to claim 7, wherein, A receiving plate (9) is installed below the cutting blade (8). The receiving plate (9) has a discharge hole (91). A guide plate (92) is installed below the discharge hole (91). The side wall of the granulation chamber (1) has a discharge hole (16). One end of the guide plate (92) extends out from the inside of the granulation chamber (1) through the discharge hole (16).

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