Filtering mechanism of granulator

Abstract

The utility model discloses a filter mechanism of a granulator, which comprises a filter cartridge, the filter cartridge is a hollow cylindrical barrel with two open ends, filter holes are arranged on the side wall of the filter cartridge, a spiral feeding strip is arranged on the inner wall of the filter cartridge, the filter mechanism further comprises a driving seat, and the driving seat is used for driving the filter cartridge to rotate. By means of the spiral feeding strip arranged on the inner wall of the filter cylinder, particle materials in the filter cylinder can be conveyed when the filter cylinder rotates, meanwhile, the particle materials in the filter cylinder can be filtered when the filter cylinder rotates, and by means of the spiral feeding strip arranged on the inner wall of the filter cylinder, the particle materials in the filter cylinder can be conveyed. By means of the arrangement, particle materials in the filter cartridge can be conveyed when the filter cartridge rotates, meanwhile, the particle materials in the filter cartridge can be filtered when the filter cartridge rotates, the retention time of the particle materials in the filter cartridge can be prolonged in cooperation with a spiral feeding strip, and the filtering effect is good.

Description

Technical Field

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

[0002] Currently, pelletizing biomass such as straw or wood into pellets is a widely accepted biomass utilization technology. By processing these biomass into high-density, high-calorific-value, and low-cost pellets, clean combustion of biomass is achieved, protecting the environment while creating economic value.

[0003] The pellets discharged from the pellet mill need to be filtered to ensure that the pellets meet the required size range and specifications. Existing pellet mills have a filter screen at the discharge port. The pellets discharged through the discharge port can fall onto the filter screen and roll down from it to filter the pellets. However, in this way, the pellets roll down the filter screen for a short time, so the filtration effect is poor. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a filtration mechanism for a pellet mill. This addresses the technical problem that in the prior art, a filter screen is installed at the discharge port of the pellet mill, and the granular raw material discharged through the discharge port can fall onto the filter screen and roll down from it to filter the granular raw material. However, in this method, the rolling time of the granular raw material on the filter screen is short, resulting in poor filtration effect.

[0005] To achieve the above technical objectives, the present invention provides a filtration mechanism for a pellet mill, including a filter cylinder. The filter cylinder is a cylindrical body that is hollow inside and open at both ends. The side wall of the filter cylinder is provided with filter holes, and the inner wall of the filter cylinder is provided with a spiral feeding strip. The filtration mechanism also includes a drive seat, which is used to drive the filter cylinder to rotate. Through the spiral feeding strip provided on the inner wall of the filter cylinder, the filter cylinder can transport the granular material inside the filter cylinder when it rotates. At the same time, the filter cylinder can also filter the granular material inside the filter cylinder when it rotates.

[0006] Furthermore, the filtration mechanism also includes a blower assembly, which includes a blower pipe arranged along the central axis of the filter cylinder. The blower pipe is hollow inside and has a closed end and an open end. The open end of the blower pipe is connected to the air source through a pipe. Several first air outlets are provided at equal intervals along the central axis of the side wall of the blower pipe, and the air outlets of the first air outlets are vertically downward.

[0007] Furthermore, the diameter of the first air outlet gradually increases along the direction from the inner wall of the air blower to the outer wall of the air blower.

[0008] Furthermore, the side wall of the blower tube is also provided with several second air outlets at equal intervals, and the air outlets of the second air outlets are vertically upward.

[0009] Furthermore, the diameter of the second air outlet gradually decreases along the direction from the inner wall of the air duct to the outer wall of the air duct.

[0010] Furthermore, the air blower is positioned above the central axis of the filter cartridge.

[0011] Furthermore, the filter holes include several rows of holes arranged in a ring around the central axis of the filter cylinder, and each row of filter holes includes several holes arranged at equal intervals along the central axis of the filter cylinder.

[0012] Furthermore, the drive base includes a base, with a set of rollers at both ends of the top of the base. Each set of rollers includes two rollers arranged opposite each other. The outer walls of both ends of the filter cylinder are provided with annular slide rails. The two annular slide rails are slidably connected to the two sets of rollers respectively. The drive base also includes a gear, which is connected to a drive device for driving the gear to rotate.

[0013] The beneficial effects of this utility model include:

[0014] 1. By setting a spiral feeding strip on the inner wall of the filter cylinder, the particulate material inside the filter cylinder can be conveyed when the filter cylinder rotates. At the same time, the particulate material inside the filter cylinder can also be filtered when the filter cylinder rotates. In addition, the spiral feeding strip can also extend the retention time of particulate material inside the filter cylinder, resulting in a good filtration effect.

[0015] 2. The air blown out from the first air outlet can blow onto the granular material inside the filter cartridge, quickly reducing the temperature of the granular material, preventing the granular material from sticking and deforming, ensuring the shape and hardness of the granular material, and also making the surface of the granular material smoother and reducing defects.

[0016] 3. The air blown out from the second air outlet can blow onto the inner wall of the filter cartridge, blowing out the particulate material remaining inside the filter holes and preventing the filter holes from being blocked. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the filtration mechanism of the pellet mill according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the blower tube structure according to an embodiment of the present utility model;

[0019] Figure 3 yes Figure 2 Enlarged view of point A;

[0020] In the diagram: 1. Filter cylinder; 11. Filter hole; 12. Spiral feed bar; 13. Circular slide rail; 14. Gear ring; 2. Drive seat; 21. Base; 22. Roller; 23. Gear; 24. Drive device; 3. Blowing assembly; 31. Blowing pipe; 311. First air outlet; 312. Second air outlet. Detailed Implementation

[0021] 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.

[0022] Example 1

[0023] This embodiment provides a filtration mechanism for a pellet mill, such as... Figure 1 As shown, the filter includes a filter cylinder 1, which is a hollow cylindrical body with openings at both ends. The side wall of the filter cylinder 1 is provided with filter holes 11, which are arranged in a ring around the central axis of the filter cylinder 1 in several rows. Each row of filter holes 11 includes several holes arranged at equal intervals along the central axis of the filter cylinder 1. The inner wall of the filter cylinder 1 is provided with a spiral feeding strip 12. The filter mechanism also includes a drive seat 2, which is used to drive the filter cylinder 1 to rotate. By providing the spiral feeding strip 12 on the inner wall of the filter cylinder 1, the filter cylinder 1 can convey the particulate material inside the filter cylinder 1 when rotating. At the same time, the filter cylinder 1 can also filter the particulate material inside the filter cylinder 1 when rotating. In addition, the spiral feeding strip 12 can also extend the retention time of the particulate material inside the filter cylinder 1, resulting in a good filtration effect.

[0024] It should be noted that the filter cylinder 1 is tilted, and the particulate material enters the filter cylinder 1 through the opening at the upper end of the filter cylinder 1, which can prevent the particulate material from spilling out of the filter cylinder 1 when it enters the filter cylinder 1.

[0025] In this embodiment, the drive base 2 includes a base 21, and a set of rollers 22 are provided at both ends of the top of the base 21. Each set of rollers 22 includes two rollers 22 arranged opposite to each other. The outer walls of both ends of the filter cylinder 1 are provided with annular slide rails 13. The two annular slide rails 13 are slidably connected to the two sets of rollers 22 respectively. The drive base 2 also includes a gear 23. The gear 23 is connected to a drive device 24 for driving the gear 23 to rotate. The drive device 23 is one of an electric motor, a hydraulic motor or a pneumatic motor. A toothed ring 14 is provided on the outer wall of the middle part of the filter cylinder 1. The toothed ring 14 meshes with the gear 23. The drive device 24 can drive the gear 23 to rotate. The gear 23 can drive the filter cylinder 1 to rotate through the toothed ring 14.

[0026] It should be noted that the side wall of the roller 22 is provided with an annular limiting groove, and the roller 22 is locked onto the annular slide rail 13 through the annular limiting groove.

[0027] Example 2

[0028] This embodiment provides a filtration mechanism for a pellet mill, based on embodiment 1, such as... Figure 2-3 As shown, the filtration mechanism also includes a blowing assembly 3, which includes a blowing pipe 31 arranged along the central axis of the filter cylinder 1. The blowing pipe 31 is hollow inside, with one end closed and the other end open. The blowing pipe 31 is connected to the air source through a pipe. Several first air outlets 311 are arranged at equal intervals along the central axis of the side wall of the blowing pipe 31. The air outlets 311 blow vertically downward. The air blown out of the first air outlets 311 can blow onto the particulate material inside the filter cylinder 1, quickly reducing the temperature of the particulate material, preventing the particulate material from sticking and deforming, ensuring the shape and hardness of the particulate material, and making the surface of the particulate material smoother, reducing defects, and improving appearance and performance. At the same time, the diameter of the first air outlets 311 gradually increases from the inner wall of the blowing pipe 31 to the outer wall of the blowing pipe 31, thereby increasing the range of the air blown out of the first air outlets 311, so that the air blown out of the first air outlets 311 can blow onto the particulate material at every position inside the filter cylinder 1.

[0029] In this embodiment, the side wall of the blowing pipe 31 is also provided with a plurality of second air outlets 312 at equal intervals. The air outlets 312 are vertically upward. The air blown out by the second air outlets 312 can blow onto the inner wall of the filter cylinder 1, blowing out the particulate material remaining inside the filter holes 11 and preventing the filter holes 11 from being blocked. At the same time, the diameter of the second air outlets 312 gradually decreases from the inner wall of the blowing pipe 31 to the outer wall of the blowing pipe 31, which can increase the air force of the air blown out from the second air outlets 312, thereby making it easier to blow out the particulate material remaining inside the filter holes 11. In addition, the blowing pipe 31 is located above the central axis of the filter cylinder 1, which allows the second air outlets 312 to be closer to the inner wall of the filter cylinder 1, thereby making it even easier to blow out the particulate material remaining inside the filter holes 11.

[0030] Specific principle: The granular material discharged from the pellet mill flows into the filter cylinder 1 through the opening at one end of the filter cylinder 1. The drive device 24 drives the gear 23 to rotate, and the gear 23 drives the filter cylinder 1 to rotate through the gear ring 14. The spiral feeding strip 12 set on the inner wall of the filter cylinder 1 can transport the granular material inside the filter cylinder 1 when the filter cylinder 1 rotates. At the same time, the filter cylinder 1 can also filter the granular material inside the filter cylinder 1 when it rotates. In addition, the spiral feeding strip 12 can also extend the retention time of the granular material inside the filter cylinder 1, resulting in a good filtration effect. Meanwhile, the air blown out of the first air outlet 311 can blow onto the granular material inside the filter cylinder 1, which can quickly reduce the temperature of the granular material, prevent the granular material from sticking and deforming, ensure the shape and hardness of the granular material, and also make the surface of the granular material smoother, reduce defects, and improve appearance and performance. The air blown out of the second air outlet 312 can blow onto the inner wall of the filter cylinder 1, blowing out the granular material remaining inside the filter hole 11.

[0031] 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 filtering mechanism of a granulator, characterized by, The filter includes a filter cylinder (1), which is a cylindrical body with a hollow interior and open ends. The filter cylinder (1) has filter holes (11) on its side wall and a spiral feeding strip (12) on its inner wall. The filter mechanism also includes a drive seat (2), which is used to drive the filter cylinder (1) to rotate. The spiral feeding strip (12) on the inner wall of the filter cylinder (1) can transport the particulate material inside the filter cylinder (1) when it rotates. At the same time, the filter cylinder (1) can also filter the particulate material inside the filter cylinder (1) when it rotates.

2. The filtering mechanism of a granulator according to claim 1, characterized in that, The filtration mechanism further includes a blower assembly (3), which includes a blower pipe (31) arranged along the central axis of the filter cylinder (1). The blower pipe (31) is hollow inside, with one end closed and the other end open. The open end of the blower pipe (31) is connected to the air source through a pipe. The side wall of the blower pipe (31) is provided with a plurality of first air outlets (311) at equal intervals along its central axis. The air outlets (311) are vertically downward.

3. The filtering mechanism of a granulator according to claim 2, characterized in that, The diameter of the first air outlet (311) gradually increases along the direction from the inner wall of the air duct (31) to the outer wall of the air duct (31).

4. The filtering mechanism of a granulator according to claim 2, wherein The side wall of the blower pipe (31) is also provided with several second air outlets (312) at equal intervals, and the air outlets (312) are vertically upward.

5. The filtering mechanism of a granulator according to claim 4, characterized in that, The diameter of the second air outlet (312) gradually decreases along the direction from the inner wall of the air duct (31) to the outer wall of the air duct (31).

6. The filtering mechanism of a granulator according to claim 2, wherein The blower pipe (31) is located above the central axis of the filter cylinder (1).

7. The filtering mechanism of a granulator according to claim 1, characterized in that, The filter holes (11) include several rows of holes arranged in a ring around the central axis of the filter cylinder (1). Each row of filter holes (11) includes several holes arranged at equal distances along the central axis of the filter cylinder (1).

8. The filtering mechanism of a granulator according to claim 1, characterized in that, The drive base (2) includes a base (21), and a set of rollers (22) is provided at both ends of the top of the base (21). Each set of rollers (22) includes two rollers (22) arranged opposite to each other. The outer walls of both ends of the filter cylinder (1) are provided with annular slide rails (13). The two annular slide rails (13) are slidably connected to the two sets of rollers (22) respectively. The drive base (2) also includes a gear (23), and the gear (23) is connected to a drive device (24) for driving the gear (23) to rotate.

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