Granulation device for biomass particle production

Abstract

The invention belongs to the technical field of biomass granulators, particularly relates to a granulation device for biomass particle production, and aims to solve the problems that iron slag is not easy to remove, the granulation efficiency is low and heat supply is not uniform in the prior art. A slag removal mechanism for removing iron slag and a granulation mechanism for completing biomass material granulation are respectively arranged on the outer walls of the crusher and the granulator. After biomass materials are put into the pulverizer to be pulverized, iron slag can be removed as much as possible under the action of the slag removal mechanism, the slag removal difficulty is reduced, the quality of biomass particles is prevented from being affected, and the granulation equipment is well protected; the purified biomass material can be subjected to double-sided granulation under the action of the granulation mechanism, the granulation range is expanded, the granulation efficiency is improved, heat supply is uniform, and the quality of biomass particles is improved.

Description

Technical Field

[0001] This invention relates to the field of biomass pelletizing technology, and more particularly to a pelletizing device for biomass pellet production. Background Technology

[0002] Biomass materials are high-performance, high-value-added new materials manufactured from woody plants, grasses, vines, and their processing residues and waste through advanced physical, chemical, and biological processes. Unlike traditional petroleum-based materials, biomass materials use renewable raw materials that can be continuously obtained from nature. The preparation of biomass materials involves a variety of technologies, including physical, chemical, and biological methods, which endow biomass materials with excellent performance and high added value. Furthermore, biomass materials have a wide range of applications, playing a vital role not only in the energy sector but also in other industrial fields.

[0003] As a renewable resource, biomass materials are often pulverized and pelletized. However, some waste wood contains iron slag. After the wood is pulverized, the iron slag will be hidden in the wood and is difficult to pick out. If pelletized directly, it will not only affect the quality of biomass pellets, but also easily damage the pelletizing equipment. In addition, existing pelleting equipment typically only allows biomass materials to be cut off from one side of the mesh bag, resulting in a small pelleting area that affects pelleting efficiency. Furthermore, biomass materials require heating and humidification during pelleting, but in reality, the heating can only cover the upper surface of the biomass material, leading to uneven heating. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention provides a pelletizing device for biomass pellet production, which overcomes the shortcomings of the prior art and effectively solves the problems of difficult removal of iron slag, low pelletizing efficiency and uneven heating.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A pelletizing device for biomass pellet production includes a crusher, a pelletizer for pelletizing is provided on one side of the crusher, and a slag removal mechanism for removing iron slag and a pelletizing mechanism for completing the pelletizing of biomass materials are respectively provided on the outer walls of the crusher and the pelletizer. The granulator includes a pulverizer and a magnetic separator, wherein the magnetic separator is located at the bottom of the pulverizer, and the slag removal mechanism is set on the outer wall of the magnetic separator. The slag removal mechanism is composed of a servo motor, a permanent magnet roller, a scraper, a slag collecting plate, a rotating component, a lifting component, and a swinging component. The servo motor is fixedly connected to one side of the outer wall of the magnetic separator by screws. The permanent magnet roller is fixedly connected to the output shaft of the servo motor by a coupling and is installed through one side of the inner wall of the magnetic separator. The scraper is fixedly connected to one side of the outer wall of the magnetic separator, and the top of one side of the outer wall of the scraper is in close contact with the outer wall of the permanent magnet roller. The slag collecting plate is welded to one side of the outer wall of the magnetic separator and is located at the bottom of the scraper. The rotating component is installed on one end of the outer wall of the permanent magnet roller. The lifting component is installed on the other side of the outer wall of the magnetic separator. The swinging component is rotatably connected to the inner wall of the magnetic separator. The granulator includes an outer frame located on the outer layer and an inner frame installed on the inner wall of the outer frame. The granulation mechanism is located on the outer wall of the inner frame. The granulation mechanism includes a servo motor II installed on the top outer wall of the inner frame, a riser rotatably connected to the center of the top inner wall of the inner frame, a pulley assembly installed between the servo motor II and the riser, a heating pipe rotatably connected to the top outer wall of the riser via bearings, T-shaped pipes evenly distributed and welded to the outer wall of the heating pipe, a roller pressing component fixedly connected to the bottom outer wall of the riser via flanges, a scraper component welded to the bottom outer wall of the roller pressing component, and a mesh cylinder welded to the bottom outer wall of the inner frame.

[0006] Preferably, the rotating component consists of a rotating disk and hooks. The rotating disk is fixedly connected to the outer wall of one end of the permanent magnet roller, and there are four hooks, all welded to the side of the rotating disk. The rotating disk rotates along with the permanent magnet roller, thereby controlling each hook to cyclically contact the lifting component.

[0007] Preferably, the lifting component includes a lifting rod rotatably connected to the outer wall of the other side of the magnetic separator and a torsion spring fixedly connected between the lifting rod and the magnetic separator. The lifting rod is responsible for intermittently lifting the oscillating component, controlling the continuous vibration of the oscillating component on the one hand, and intermittently widening the gap between the oscillating component and the permanent magnet roller on the other hand. Furthermore, the torsion spring continuously resets the oscillating component, ensuring that the hook can maintain long-term contact with the lifting rod.

[0008] Preferably, the oscillating component comprises a vibrating plate and an extension block. The vibrating plate is rotatably connected to the inner wall of the magnetic separator, with one side of its rotation axis pressed tightly against the inner wall to prevent powder from falling from the top of the vibrating plate. The extension block is welded to one side of the inclined surface of the vibrating plate and protrudes from the outside of the magnetic separator for contact with the lifting rod. When the lifting rod repeatedly contacts the extension block, it controls the extension block to lift repeatedly, thereby controlling the continuous vibration of the vibrating plate.

[0009] Preferably, the T-shaped pipe consists of a horizontal pipe, a vertical pipe, and nozzles. The vertical pipe is welded to the bottom outer wall of the horizontal pipe, and the nozzles, evenly spaced, are installed on the outer walls of both the horizontal and vertical pipes. The nozzles on the horizontal pipe are mainly responsible for spraying hot water downwards, while the nozzles on the vertical pipe are mainly responsible for spraying water into the interior of the biomass material, thus ensuring a uniform hot water supply.

[0010] Preferably, the roller pressing component includes four corner connecting seats fixedly connected to the outer wall of the bottom of the riser via flanges, bottom pressure rollers rotatably connected to the outer wall of the four corner connecting seats and evenly distributed, and an arc-shaped side pressure plate rotatably connected to the outer wall of one end of the bottom pressure rollers. The bottom pressure rollers and the arc-shaped side pressure plates are both tightly attached to the inner wall of the mesh cylinder. As the riser rotates, the four corner connecting seats drive the bottom pressure rollers and the arc-shaped side pressure plates to rotate together. During this process, the bottom pressure rollers and the arc-shaped side pressure plates can compact the biomass material inside the mesh cylinder, causing it to continuously pass through the mesh openings and protrude to the outside of the mesh cylinder, facilitating subsequent pelletizing.

[0011] Preferably, the scraper assembly comprises a bottom scraper, a side scraper, and a connecting member. The bottom scraper is fixedly connected to the bottom outer wall of the four-corner connecting seat, the side scraper is disposed on the side of the mesh cylinder and located at one end of the bottom scraper, and the connecting member is installed between the side scraper and the bottom scraper. As the four-corner connecting seat rotates, the bottom scraper and the side scraper rotate accordingly. Both the bottom scraper and the side scraper are used to cut the compressed biomass material exposed on the surface of the mesh cylinder. Specifically, the bottom scraper is responsible for cutting the biomass material at the bottom of the mesh cylinder, and the side scraper is responsible for cutting the biomass material on the sides of the mesh cylinder.

[0012] Preferably, the mesh cylinder includes a bottom mesh and side meshes, wherein the bottom mesh and side meshes are located at the bottom and side of the mesh cylinder, respectively. During the granulation process, biomass materials are mainly granulated through the bottom mesh and side meshes, and then cut by a scraper.

[0013] Preferably, a hopper is welded to the bottom outer wall of the magnetic separator, and a feed pipe is fixedly connected to the bottom outer wall of the hopper. A blower is installed on the outer wall of one end of the feed pipe, and a feeding pipe connected to the outer wall of one side of the inner frame is installed at the outlet of the blower. Under the action of the blower, the crushed and magnetically separated biomass material is blown into the inner frame along the feed pipe and the feeding pipe, and then the biomass material will be granulated in the granulator.

[0014] Preferably, a feeding platform is welded to the feed inlet of the pulverizer, and a screen plate is welded to the bottom outer wall of the outer frame. Unpulverized biomass material needs to be fed into the pulverizer along the feeding platform for pulverization. After granulation, the biomass particles will fall onto the screen plate to screen out the powder and residue, thus completing the feeding process.

[0015] The beneficial effects of this invention are as follows: The granulation device for biomass pellet production of the present invention allows for the removal of iron slag as much as possible after the biomass material is fed into the pulverizer and pulverized, under the action of the slag removal mechanism. This reduces the difficulty of slag removal, avoids affecting the quality of the biomass pellets, and effectively protects the granulation equipment. Furthermore, the purified biomass material can be granulated on both sides under the action of the granulation mechanism, expanding the granulation range, improving granulation efficiency, and providing uniform heating, thus improving the quality of the biomass pellets. In the pelletizing device for biomass pellet production of the present invention, after the crushed biomass material falls onto the oscillating component, the biomass material rolls onto the permanent magnet roller. After the permanent magnet roller adsorbs iron slag, the iron slag can be scraped off by the scraper when the permanent magnet roller is rotated by the servo motor. During this process, the rotating component continuously presses down on the lifting component, thereby controlling the lifting component to continuously vibrate the oscillating component, which promotes the dispersion of the material, helps to improve the adsorption effect of iron slag, and avoids the material being blocked by the gap between the oscillating component and the permanent magnet roller being too small. The pelletizing device for biomass pellet production of the present invention uses a servo motor to drive the riser to rotate, which controls the roller to simultaneously squeeze the biomass material on the bottom and sides of the inside of the mesh cylinder. At the same time, the scraper can rotate together with the roller to cyclically scrape off the biomass pellets exposed on the mesh cylinder. This not only expands the pelletizing area and improves work efficiency, but also increases the uniformity of heating and moisture absorption of the biomass material by supplying heat to the T-shaped tube through the heating pipe, thereby improving the quality of biomass pellets. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a pelletizing device for biomass pellet production proposed in this invention. Figure 2 This is a schematic diagram of the pulverizer structure of a pelletizing device for biomass pellet production proposed in this invention; Figure 3 This is a schematic diagram of the magnetic separator connection for a pelletizing device used in biomass pellet production according to the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the magnetic separator connection for a pelletizing device used in biomass pellet production according to the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the oscillating component structure of a pelletizing device for biomass pellet production proposed in this invention. Figure 6 This is a schematic diagram of the rotating and lifting components of a pelletizing device for biomass pellet production according to the present invention. Figure 7 This is a schematic diagram of the granulator structure of a granulation device for biomass pellet production proposed in this invention; Figure 8 This is a schematic diagram of the granulation mechanism of a granulation device for biomass pellet production proposed in this invention. Figure 1 ; Figure 9 This is a schematic diagram of the granulation mechanism of a granulation device for biomass pellet production proposed in this invention. Figure 2 ; Figure 10 This is a schematic diagram of the granulation mechanism of a granulation device for biomass pellet production proposed in this invention. Figure 3 .

[0017] In the diagram: 1. Crusher; 2. Granulator; 3. Crusher; 4. Magnetic separator; 5. Slag removal mechanism; 51. Servo motor one; 52. Permanent magnet roller; 53. Slag scraper; 54. Slag collection plate; 55. Rotating component; 551. Rotary disk; 552. Hook; 56. Lifting component; 561. Lifting rod; 562. Torsion spring; 57. Swinging component; 571. Vibrating plate; 572. Extension block; 6. Outer frame; 7. Inner frame; 8. Granulation mechanism; 81. Servo motor two; 82. Riser; 83. 84. Belt pulley assembly; 85. Heating pipe; 86. T-shaped pipe; 87. Horizontal pipe; 88. Vertical pipe; 89. Nozzle; 80. Roller pressing parts; 81. Four-corner connecting seat; 82. Bottom pressure roller; 83. Arc-shaped side pressure plate; 84. Scraper parts; 85. Bottom scraper; 86. Side scraper; 87. Connecting parts; 88. Mesh cylinder; 89. Bottom mesh; 80. Side mesh; 81. Discharge hopper; 10. Feed pipe; 11. Blower; 12. Feeding pipe; 13. Loading platform; 14. Screen plate. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] Example 1, refer to Figure 1 , Figure 2 and Figure 7 A pelletizing device for biomass pellet production includes a crusher 1, a pelletizer 2 for pelletizing is provided on one side of the crusher 1, and a slag removal mechanism 5 for removing iron slag and a pelletizing mechanism 8 for completing the pelletizing of biomass materials are respectively provided on the outer walls of the crusher 1 and the pelletizer 2.

[0020] In this embodiment, after the biomass material is crushed in the crusher 1, the iron slag can be removed as much as possible under the action of the slag removal mechanism 5, which reduces the difficulty of slag removal and avoids affecting the quality of biomass pellets, thus protecting the pelletizing equipment. On this basis, the purified biomass material can be granulated on both sides under the action of the pelletizing mechanism 8, which expands the granulation range, improves the granulation efficiency, and provides uniform heating, thereby improving the quality of biomass pellets.

[0021] Example 2, refer to Figure 3-4 A pelletizing device for biomass pellet production includes a pelletizer 2 comprising a pulverizer 3 and a magnetic separator 4. The magnetic separator 4 is located at the bottom of the pulverizer 3, and a slag removal mechanism 5 is disposed on the outer wall of the magnetic separator 4. The slag removal mechanism 5 consists of a servo motor 51, a permanent magnet roller 52, a scraper 53, a slag collecting plate 54, a rotating component 55, a lifting component 56, and a swinging component 57. The servo motor 51 is fixedly connected to one side of the outer wall of the magnetic separator 4 by screws, and the permanent magnet roller 52 is fixedly connected to the servo motor 51 by a coupling. On the output shaft of 51, and the permanent magnet roller 52 is installed through the inner wall of one side of the magnetic separator 4, the slag scraper 53 is fixedly connected to the outer wall of one side of the magnetic separator 4, and the top of the outer wall of the slag scraper 53 is tightly attached to the outer wall of the permanent magnet roller 52, the slag collection plate 54 is welded to the outer wall of one side of the magnetic separator 4, and the slag collection plate 54 is located at the bottom of the slag scraper 53, the rotating part 55 is installed on the outer wall of one end of the permanent magnet roller 52, the lifting part 56 is installed on the outer wall of the other side of the magnetic separator 4, and the swinging part 57 is rotatably connected to the inner wall of the magnetic separator 4.

[0022] In this embodiment, after the pulverized biomass material falls onto the oscillating member 57, it rolls onto the permanent magnet roller 52. The permanent magnet roller 52 adsorbs the iron slag, and when the permanent magnet roller 52 is rotated by the servo motor 51, the iron slag can be scraped off by the scraper plate 53. During this process, the rotating member 55 continuously presses down on the lifting member 56, thereby controlling the lifting member 56 to continuously vibrate the oscillating member 57, which promotes the dispersion of the material, helps to improve the adsorption effect of the iron slag, and avoids the material being blocked due to the small gap between the oscillating member 57 and the permanent magnet roller 52.

[0023] Example 3, refer to Figure 8-9A pelletizing device for biomass pellet production includes a pelletizer 2 comprising an outer frame 6 located on the outer layer and an inner frame 7 installed on the inner wall of the outer frame 6. A pelletizing mechanism 8 is disposed on the outer wall of the inner frame 7. The pelletizing mechanism 8 includes a servo motor 81 installed on the top outer wall of the inner frame 7, a riser 82 rotatably connected to the center of the top inner wall of the inner frame 7, a pulley assembly 83 installed between the servo motor 81 and the riser 82, a heating pipe 84 rotatably connected to the top outer wall of the riser 82 via bearings, T-shaped pipes 85 evenly distributed on the outer wall of the heating pipe 84, a roller pressing component 86 fixedly connected to the bottom outer wall of the riser 82 via flanges, a scraper component 87 welded to the bottom outer wall of the roller pressing component 86, and a mesh cylinder 88 welded to the bottom outer wall of the inner frame 7.

[0024] In this embodiment, the rotation of the riser 82 driven by the servo motor 81 controls the roller press 86 to simultaneously squeeze the biomass material on the bottom and sides of the mesh cylinder 88. At the same time, the scraper 87 rotates together with the roller press 86, thereby cyclically scraping away the biomass particles exposed on the mesh cylinder 88. This not only expands the granulation area and improves work efficiency, but also increases the uniformity of heating and moisture absorption of the biomass material by heating the T-tube 85 through the heating pipe 84, thereby improving the quality of biomass granulation.

[0025] Reference Figure 6 The rotating component 55 consists of a rotating disk 551 and hooks 552. The rotating disk 551 is fixedly connected to the outer wall of one end of the permanent magnet roller 52. There are four hooks 552, all welded to the side of the rotating disk 551. The rotating disk 551 rotates along with the permanent magnet roller 52, thereby controlling each hook 552 to cyclically contact the lifting component 56.

[0026] Reference Figure 5 The lifting component 56 includes a lifting rod 561 rotatably connected to the outer wall of the magnetic separator 4 on the other side, and a torsion spring 562 fixedly connected between the lifting rod 561 and the magnetic separator 4. The lifting rod 561 is responsible for intermittently lifting the swing component 57, controlling the continuous vibration of the swing component 57 on the one hand, and intermittently widening the gap between the swing component 57 and the permanent magnet roller 52 on the other hand, and continuously resetting the swing component 57 through the torsion spring 562 to ensure that the hook 552 can be in contact with the lifting rod 561 for a long time.

[0027] Reference Figure 4The oscillating component 57 consists of a vibrating plate 571 and an extension block 572. The vibrating plate 571 is rotatably connected to the inner wall of the magnetic separator 4, and one side of the rotation axis of the vibrating plate 571 is in close contact with the inner wall of the magnetic separator 4 to prevent powder from falling from the top of the vibrating plate 571. The extension block 572 is welded to one side of the inclined surface of the vibrating plate 571 and is exposed outside the magnetic separator 4 for contact with the lifting rod 561. When the lifting rod 561 repeatedly contacts the extension block 572, it can control the extension block 572 to be lifted repeatedly, thereby controlling the continuous vibration of the vibrating plate 571.

[0028] Reference Figure 10 The T-shaped pipe 85 consists of a horizontal pipe 851, a vertical pipe 852, and nozzles 853. The vertical pipe 852 is welded to the bottom outer wall of the horizontal pipe 851, and the nozzles 853, evenly distributed, are installed on the outer walls of both the horizontal pipe 851 and the vertical pipe 852. The nozzles 853 on the horizontal pipe 851 are mainly responsible for spraying hot water downwards, while the nozzles 853 on the vertical pipe 852 are mainly responsible for spraying water into the interior of the biomass material, thus ensuring the uniformity of hot water supply.

[0029] Reference Figure 10 The roller pressing component 86 includes a four-corner connecting seat 861 fixedly connected to the bottom outer wall of the riser 82 via a flange, a bottom pressure roller 862 rotatably connected to the outer wall of the four-corner connecting seat 861 and evenly distributed, and an arc-shaped side pressure plate 863 rotatably connected to the outer wall of one end of the bottom pressure roller 862. The bottom pressure roller 862 and the arc-shaped side pressure plate 863 are both tightly attached to the inner wall of the mesh cylinder 88. As the riser 82 rotates, the four-corner connecting seat 861 drives the bottom pressure roller 862 and the arc-shaped side pressure plate 863 to rotate together. During this process, the bottom pressure roller 862 and the arc-shaped side pressure plate 863 can compact the biomass material inside the mesh cylinder 88, causing it to continuously pass through the mesh and protrude to the outside of the mesh cylinder 88, facilitating subsequent pelletizing.

[0030] Reference Figure 10 The scraper component 87 consists of a bottom scraper 871, a side scraper 872, and a connector 873. The bottom scraper 871 is fixedly connected to the bottom outer wall of the four-corner connecting seat 861. The side scraper 872 is disposed on the side of the mesh cylinder 88, and the side scraper 872 is located at one end of the bottom scraper 871. The connector 873 is installed between the side scraper 872 and the bottom scraper 871. As the four-corner connecting seat 861 rotates, the bottom scraper 871 and the side scraper 872 will rotate accordingly. Both the bottom scraper 871 and the side scraper 872 are used to cut the compressed biomass material exposed on the surface of the mesh cylinder 88. The bottom scraper 871 is responsible for cutting the biomass material at the bottom of the mesh cylinder 88, and the side scraper 872 is responsible for cutting the biomass material on the side of the mesh cylinder 88.

[0031] Reference Figure 9The mesh cylinder 88 includes a bottom mesh 881 and a side mesh 882, wherein the bottom mesh 881 and the side mesh 882 are located at the bottom and side of the mesh cylinder 88, respectively. During the granulation process, biomass materials are mainly formed into granules through the bottom mesh 881 and the side mesh 882, and then cut by the scraper 87.

[0032] Reference Figure 1 A hopper 9 is welded to the bottom outer wall of the magnetic separator 4, and a feed pipe 10 is fixedly connected to the bottom outer wall of the hopper 9. A blower 11 is installed on the outer wall of one end of the feed pipe 10, and a feeding pipe 12 connected to the outer wall of one side of the inner frame 7 is installed at the air outlet of the blower 11. Under the action of the blower 11, the crushed and magnetically separated biomass material will be blown into the inner frame 7 along the feed pipe 10 and the feeding pipe 12. The biomass material will then be granulated in the pelletizer 2.

[0033] Reference Figure 2 and Figure 7 The feed inlet of the crusher 3 is welded with a feed platform 13, and the bottom outer wall of the outer frame 6 is welded with a screen plate 14. Uncrushed biomass materials need to be fed into the crusher 3 along the feed platform 13 for crushing. After granulation, the biomass particles will fall onto the screen plate 14 to screen out the powder and slag and complete the feeding.

[0034] Working principle: First, the biomass material to be crushed is put into the crusher 3 for crushing. After crushing, the biomass material will fall onto the permanent magnet roller 52 along the vibrating plate 571. At this time, the permanent magnet roller 52 is used to adsorb iron slag. When the permanent magnet roller 52 is driven to rotate by the servo motor 51, the iron slag can be carried away to the outside of the magnetic separator 4. The iron slag is scraped off by the scraper plate 53. Subsequently, under the action of blower 11, the crushed and magnetically separated biomass material is blown into the inner frame 7 through feed pipe 10 and feed pipe 12. The servo motor 81 drives the riser 82 to rotate. As the riser 82 rotates, the four corner connecting seats 861 drive the bottom pressure roller 862 and the arc side pressure plate 863 to rotate together to compact the biomass material inside the mesh cylinder 88, so that it continuously passes through the mesh and is exposed to the outside of the mesh cylinder 88. The heating pipe 84 supplies heat to the T-shaped pipe 85. The nozzle 853 on the horizontal pipe 851 is responsible for spraying hot water downwards, and the nozzle 853 on the vertical pipe 852 is responsible for spraying the inside of the biomass material to ensure the uniformity of heating of the biomass material. At the same time, the scraper 87 can rotate together with the roller pressing part 86, thereby cyclically scraping off the biomass particles exposed on the mesh cylinder 88. Finally, the granulated biomass particles will fall onto the screen plate 14, and the powder and slag will be screened off to complete the feeding.

[0035] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A pelletizing apparatus for biomass pellet production, comprising a pulverizer (1), characterized in that, The pulverizer (1) is provided with a granulator (2) for granulation on one side. The outer walls of the pulverizer (1) and the granulator (2) are respectively provided with a slag removal mechanism (5) for removing iron slag and a granulation mechanism (8) for completing the granulation of biomass materials. The granulator (2) includes a pulverizer (3) and a magnetic separator (4), wherein the magnetic separator (4) is located at the bottom of the pulverizer (3), and a slag removal mechanism (5) is set on the outer wall of the magnetic separator (4). The slag removal mechanism (5) is composed of a servo motor (51), a permanent magnet roller (52), a slag scraper (53), a slag collection plate (54), a rotating component (55), a lifting component (56), and a swinging component (57). The servo motor (51) is fixedly connected to one side of the outer wall of the magnetic separator (4) by screws, and the permanent magnet roller (52) is fixedly connected to the input of the servo motor (51) by a coupling. On the output shaft, the permanent magnet roller (52) is installed through one side of the inner wall of the magnetic separator (4), the slag scraper (53) is fixedly connected to one side of the outer wall of the magnetic separator (4), and the top of one side of the outer wall of the slag scraper (53) is tightly attached to the outer wall of the permanent magnet roller (52), the slag collection plate (54) is welded to one side of the outer wall of the magnetic separator (4), and the slag collection plate (54) is located at the bottom of the slag scraper (53), the rotating part (55) is installed on one end of the outer wall of the permanent magnet roller (52), the lifting part (56) is installed on the other side of the outer wall of the magnetic separator (4), and the swinging part (57) is rotatably connected to the inner wall of the magnetic separator (4); The granulator (2) includes an outer frame (6) located on the outer layer and an inner frame (7) installed on the inner wall of the outer frame (6). The granulation mechanism (8) is located on the outer wall of the inner frame (7). The granulation mechanism (8) includes a servo motor (81) installed on the top outer wall of the inner frame (7), a riser (82) rotatably connected to the center of the top inner wall of the inner frame (7), a pulley assembly (83) installed between the servo motor (81) and the riser (82), a heating pipe (84) rotatably connected to the top outer wall of the riser (82) via a bearing, T-shaped pipes (85) evenly distributed on the outer wall of the heating pipe (84), a roller (86) fixedly connected to the bottom outer wall of the riser (82) via a flange, a scraper (87) welded to the bottom outer wall of the roller (86), and a mesh cylinder (88) welded to the bottom outer wall of the inner frame (7).

2. The pelletizing device for biomass pellet production according to claim 1, characterized in that, The rotating component (55) is composed of a rotating disk (551) and hooks (552). The rotating disk (551) is fixedly connected to the outer wall of one end of the permanent magnet roller (52). There are four hooks (552), all of which are welded to the side of the rotating disk (551).

3. The pelletizing device for biomass pellet production according to claim 1, characterized in that, The lifting component (56) includes a lifting rod (561) rotatably connected to the outer wall of the other side of the magnetic separator (4) and a torsion spring (562) fixedly connected between the lifting rod (561) and the magnetic separator (4).

4. The pelletizing device for biomass pellet production according to claim 1, characterized in that, The swinging component (57) is composed of a vibrating plate (571) and an extension block (572). The vibrating plate (571) is rotatably connected to the inner wall of the magnetic separator (4), and one side of the rotation axis of the vibrating plate (571) is in close contact with the inner wall of the magnetic separator (4) to prevent the powder from falling from the top of the vibrating plate (571). The extension block (572) is welded to one side of the inclined surface of the vibrating plate (571) and exposed outside the magnetic separator (4) for contact with the lifting rod (561).

5. A pelletizing apparatus for biomass pellet production according to claim 1, characterized in that, The T-shaped tube (85) is composed of a horizontal tube (851), a vertical tube (852) and a nozzle (853). The vertical tube (852) is welded to the bottom outer wall of the horizontal tube (851), and the nozzles (853) are evenly distributed on the outer walls of the horizontal tube (851) and the vertical tube (852).

6. A pelletizing apparatus for biomass pellet production according to claim 1, characterized in that, The roller pressing component (86) includes a four-corner connecting seat (861) fixedly connected to the bottom outer wall of the riser (82) by a flange, a bottom pressure roller (862) rotatably connected to the outer wall of the four-corner connecting seat (861) and an arc-shaped side pressure plate (863) rotatably connected to the outer wall of one end of the bottom pressure roller (862), wherein the bottom pressure roller (862) and the arc-shaped side pressure plate (863) are both tightly attached to the inner wall of the mesh cylinder (88).

7. A pelletizing apparatus for biomass pellet production according to claim 1, characterized in that, The scraper component (87) is composed of a bottom scraper (871), a side scraper (872) and a connector (873). The bottom scraper (871) is fixedly connected to the bottom outer wall of the four corner connecting seat (861). The side scraper (872) is located on the side of the mesh cylinder (88) and is located at one end of the bottom scraper (871). The connector (873) is installed between the side scraper (872) and the bottom scraper (871).

8. A pelletizing apparatus for biomass pellet production according to claim 1, characterized in that, The net cylinder (88) includes a bottom net (881) and a side net (882), wherein the bottom net (881) and the side net (882) are located at the bottom and side of the net cylinder (88), respectively.

9. A pelletizing apparatus for biomass pellet production according to claim 1, characterized in that, The magnetic separator (4) has a feeding hopper (9) welded to the bottom outer wall, and a feeding pipe (10) is fixedly connected to the bottom outer wall of the feeding hopper (9). A blower (11) is installed on the outer wall of one end of the feeding pipe (10), and a feeding pipe (12) connected to the outer wall of one side of the inner frame (7) is installed at the air outlet of the blower (11).

10. A pelletizing apparatus for biomass pellet production according to claim 1, characterized in that, The feed inlet of the crusher (3) is welded with a feed platform (13), and the bottom outer wall of the outer frame (6) is welded with a screen plate (14).

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