Biomass fuel particle crusher

Abstract

The utility model discloses a biomass fuel particle crusher which comprises a box body, a crushing roller assembly is arranged in the box body, a drainage assembly is arranged below the crushing roller assembly, a metal impurity removing mechanism is arranged below the drainage assembly, and particles crushed by the crushing roller assembly can fall on a first drainage plate. The particles flow into the first drainage plate and flow into the high-position end of the second drainage plate along the first drainage plate, the particles flowing into the high-position end of the second drainage plate can flow onto the roller along the second drainage plate and fall off from one side of the roller, meanwhile, metal impurities in the particles can be attracted to the outer wall of the roller under the attraction effect of the magnet block, and the roller can be driven by the driving device to rotate. Metal impurities adsorbed on the outer wall of the roller are conveyed to the other side of the roller, when the metal impurities are conveyed to the other side of the roller, the attraction force of the magnet blocks to the metal impurities is reduced, the metal impurities can fall off from the other side of the roller under the action of the gravity of the metal impurities, and then the metal impurities in particles can be separated out so as to prevent the metal impurities from affecting subsequent granulation treatment.

Description

Technical Field

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

[0002] Biomass, as a fuel, has high combustion efficiency. Currently, in the production of biomass fuel, it is necessary to crush the biomass before pelleting. Existing biomass crushers will contain a lot of metal impurities after crushing the raw materials. If these metal impurities are not removed, they will affect the subsequent pelleting process. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a biomass fuel pellet crusher to solve the technical problem that in the prior art, biomass crushers will contain a lot of metal impurities after crushing the raw materials, and these metal impurities will affect the subsequent pelleting process if they are not removed.

[0004] To achieve the above-mentioned technical objectives, the present invention provides a biomass fuel pellet crusher, including a housing, a crushing roller assembly inside the housing, a flow guiding assembly below the crushing roller assembly, and a metal impurity removal mechanism below the flow guiding assembly. The flow guiding assembly includes a first flow guiding plate inclinedly disposed inside the housing, a second flow guiding plate inclinedly disposed below the first flow guiding plate, and the lower end of the first flow guiding plate being disposed above the higher end of the second flow guiding plate. The metal impurity removal mechanism includes a drum disposed below the lower end of the second flow guiding plate, a magnet block disposed inside the drum, and the drum being connected to a drive device for driving the drum to rotate.

[0005] Furthermore, the magnet block is offset from the central axis of the roller.

[0006] Furthermore, the roller has an arc-shaped structure.

[0007] Furthermore, a baffle plate is provided above the lower end of the second diversion plate, and a material passage gap is provided between the baffle plate and the second diversion plate.

[0008] Furthermore, a vibration device is installed at the bottom of the second drainage plate.

[0009] Furthermore, the crushing roller assembly includes two crushing rollers disposed opposite each other inside the housing, and the two crushing rollers are connected to the drum via a linkage assembly.

[0010] Furthermore, the linkage assembly includes three pulleys, which are respectively connected to the drum and two crushing rollers, and the three pulleys are connected to each other by belt drive.

[0011] Furthermore, a feed hopper is installed on the top of the box.

[0012] Furthermore, the bottom of the box is provided with ramps on both sides, and discharge ports are provided on both sides of the box at the lower ends of the two ramps.

[0013] The beneficial effects of this utility model include: This utility model provides a biomass fuel pellet crusher. The pellets crushed by the crushing roller assembly can fall onto the first guide plate and flow along the first guide plate to the high end of the second guide plate. The pellets flowing into the high end of the second guide plate can flow along the second guide plate to the drum and fall off from one side of the drum. At the same time, under the attraction of the magnetic block, the metal impurities in the pellets can be adsorbed on the outer wall of the drum. The drum can be driven to rotate by the driving device, and the metal impurities adsorbed on the outer wall of the drum can be transported to the other side of the drum. When the metal impurities are transported to the other side of the drum, the attraction of the magnetic block on the metal impurities decreases, and the metal impurities can fall off from the other side of the drum under their own gravity, thus separating the metal impurities in the pellets and avoiding the metal impurities from affecting the subsequent pelleting process. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the biomass fuel pellet crusher according to an embodiment of the present invention;

[0015] Figure 2 This is a cross-sectional view of the biomass fuel pellet crusher according to an embodiment of the present invention;

[0016] In the diagram: 1. Box body; 11. Feed hopper; 12. Inclined slope; 13. Discharge port; 2. Crushing roller assembly; 21. Crushing roller; 22. Linkage assembly; 221. Pulley; 222. Belt; 3. Diversion assembly; 31. First diversion plate; 32. Second diversion plate; 33. Baffle plate; 34. Vibration device; 4. Metal impurity removal mechanism; 41. Drum; 42. Magnet block; 43. Drive device; 44. Scraper. Detailed Implementation

[0017] 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.

[0018] This utility model embodiment provides a biomass fuel pellet crusher, such as Figure 1-2 As shown, the device includes a housing 1, a crushing roller assembly 2 inside the housing 1, a flow guiding assembly 3 below the crushing roller assembly 2, and a metal impurity removal mechanism 4 below the flow guiding assembly 3. The crushing roller assembly 2 is used to crush the raw material, and the crushed particles can be conveyed to the metal impurity removal mechanism 4 through the flow guiding assembly 3. The metal impurity removal mechanism 4 is used to remove metal impurities from the particles.

[0019] In this embodiment, the diversion assembly 3 includes a first diversion plate 31 inclinedly disposed inside the housing 1. The high end of the first diversion plate 31 is connected to one side of the housing 1. A second diversion plate 32 is inclinedly disposed below the first diversion plate 31. The high end of the second diversion plate 32 is connected to the other side of the housing 1, while the low end of the first diversion plate 31 is disposed above the high end of the second diversion plate 32. The metal impurity removal mechanism 4 includes a roller 41 disposed below the low end of the second diversion plate 32. A magnet 42 is disposed inside the roller 41. The magnet 42 has an arc-shaped structure and is offset from the central axis of the roller 41. The roller 41 is connected to a drive device 43 for driving the roller 41 to rotate. The drive device 43 is one of an electric motor, a hydraulic motor, or a pneumatic motor. The particles crushed by the crushing roller assembly 2 can fall onto the first diversion plate 31 and flow along... The particles flow from the first guide plate 31 to the high end of the second guide plate 32. The particles flowing into the high end of the second guide plate 32 can flow along the second guide plate 32 to the drum 41 and fall off from one side of the drum 41. At the same time, under the attraction of the magnet block 42, the metal impurities in the particles can be adsorbed onto the outer wall of the drum 41. The drum 41 can be driven to rotate by the drive device 43, and the metal impurities adsorbed on the outer wall of the drum 41 can be transported to the other side of the drum 41. When the metal impurities are transported to the other side of the drum 41, the attraction of the magnet block 42 to the metal impurities decreases, and the metal impurities can fall off the other side of the drum 41 under their own gravity, thus separating the metal impurities from the particles to avoid the metal impurities affecting the subsequent granulation process. At the same time, a scraper 44 is installed on the other side of the drum 41 to scrape off the metal impurities attached to the outer wall of the drum 41.

[0020] In this embodiment, a baffle plate 33 is provided above the lower end of the second guide plate 32. A material passage gap is provided between the baffle plate 33 and the second guide plate 32. The material passage gap can control the amount of particles flowing from the second guide plate 32 into the roller 41. At the same time, it can also spread the particles evenly on the second guide plate 32 to avoid too many particles flowing into the roller 41 at one time or accumulating, which would affect the separation of metal impurities in the particles. Meanwhile, a vibration device 34 is installed at the bottom of the second guide plate 32. The vibration device 34 can drive the second guide plate 32 to prevent the particles from getting blocked when passing through the material passage gap.

[0021] In this embodiment, the crushing roller assembly 2 includes crushing rollers 21 disposed opposite to each other inside the housing 1. The crushing rollers 21 are connected to the drum 41 via a linkage assembly 22. More specifically, the linkage assembly 22 includes three pulleys 221, which are respectively connected to the drum 41 and two crushing rollers 21. The three pulleys 221 are connected to each other via belts 222. The drum 41 can be driven to rotate by the drive device 43. The drum 41 can drive the crushing rollers 21 to rotate via the linkage assembly 22 to crush the raw materials. At the same time, only a single drive device 43 is needed to drive the drum 41 and the crushing rollers 21 to rotate, which can reduce the machine manufacturing cost.

[0022] In this embodiment, a feeding hopper 11 is installed on the top of the box 1. The feeding hopper 11 is located between two crushing rollers 21. Raw materials can be poured into the box 1 through the feeding hopper 11. Both sides of the bottom of the box 1 are provided with ramps 12. At the same time, the box 1 is provided with discharge ports 13 at the lower ends of the two ramps 12. The separated particles and metal impurities can fall from both sides of the roller 41 onto the ramps 12 on both sides of the bottom of the box 1, and be discharged from the inside of the box 1 through the discharge ports 13.

[0023] Specific principle: In use, the raw material is poured into the box 1. The raw material is crushed by the crushing roller assembly 2. The crushed particles fall onto the first guide plate 31 and flow along the first guide plate 31 to the high end of the second guide plate 32. The particles flowing into the high end of the second guide plate 32 can flow along the second guide plate 32 to the drum 41 and fall off from one side of the drum 41. At the same time, under the attraction of the magnet block 42, the metal impurities in the particles can be adsorbed onto the outer wall of the drum 41. The drive device 43 can drive the drum 41 to rotate, and transport the metal impurities adsorbed on the outer wall of the drum 41 to the other side of the drum 41. When the metal impurities are transported to the other side of the drum 41, the attraction of the magnet block 42 to the metal impurities decreases, and the metal impurities can fall off from the other side of the drum 41 under their own gravity. The separated particles and metal impurities can fall from both sides of the drum 41 onto the slopes 12 on both sides of the bottom of the box 1 and be discharged from the inside of the box 1 through the discharge port 13.

[0024] 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 fuel pellet grinder characterized by, The device includes a housing (1), inside which is a crushing roller assembly (2), below which is a flow guide assembly (3), below which is a metal impurity removal mechanism (4), the flow guide assembly (3) includes a first flow guide plate (31) inclinedly disposed inside the housing (1), a second flow guide plate (32) inclinedly disposed below the first flow guide plate (31), the lower end of the first flow guide plate (31) being disposed above the higher end of the second flow guide plate (32), the metal impurity removal mechanism (4) including a roller (41) disposed below the lower end of the second flow guide plate (32), the roller (41) having a magnet block (42) inside, and the roller (41) being connected to a drive device (43) for driving the roller (41) to rotate.

2. The biomass fuel pellet grinder according to claim 1, wherein, The magnet block (42) is offset from the central axis of the roller (41).

3. The biomass fuel pellet grinder according to claim 1, wherein, The roller (41) has an arc-shaped structure.

4. The biomass fuel pellet grinder according to claim 1, wherein, A baffle plate (33) is provided above the lower end of the second diversion plate (32), and a material passage gap is provided between the baffle plate (33) and the second diversion plate (32).

5. The biomass fuel pellet grinder of claim 1, wherein, A vibration device (34) is installed at the bottom of the second drainage plate (32).

6. The biomass fuel pellet grinder of claim 1, wherein, The crushing roller assembly (2) includes two crushing rollers (21) arranged opposite to each other inside the housing (1), and the two crushing rollers (21) are connected to the drum (41) via a linkage assembly (22).

7. The biomass fuel pellet grinder of claim 6, wherein, The linkage component (22) includes three pulleys (221) that are respectively connected to the drum (41) and two crushing rollers (21). The three pulleys (221) are connected to each other by belt (222).

8. The biomass fuel pellet grinder of claim 1, wherein, The top of the box (1) is equipped with a feed hopper (11).

9. The biomass fuel pellet grinder of claim 1, wherein, The box (1) has ramps (12) on both sides of the bottom, and discharge ports (13) are provided on both sides of the box (1) at the lower ends of the two ramps (12).

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