A biomass pellet fuel production granulating device

Abstract

The application belongs to the technical field of biomass pellet fuel processing, and particularly relates to a biomass pellet fuel production granulating device, which comprises a supporting frame, symmetrical fixing frames are fixed to the upper side of the supporting frame, and a granulating unit is fixed between the two fixing frames; the granulating device is provided with a pellet conveying unit, a separation box, a blowing fan, a suction fan, a fuel pellet collecting groove, a connecting hose, a sealing cover and a filter box, fuel pellets prepared are discharged into the separation box, the lighter biomass fuel in the fuel pellets is taken away by airflow, the fuel pellets fall into the fuel pellet collecting groove, the biomass fuel enters the filter box, and the biomass fuel is left in the filter box by filtration, so that the fuel pellets and the biomass fuel can be quickly separated, the processing quality of the fuel pellets is ensured, the biomass fuel can be recycled, and waste is avoided.

Description

Technical Field

[0001] This invention relates to the field of biomass pellet fuel processing technology, specifically to a biomass pellet fuel production pelletizing device. Background Technology

[0002] Biomass pellet fuel is essentially the direct combustion of biomass energy, which is the processing and utilization of biomass. Direct combustion methods can be divided into four types: stove combustion, boiler combustion, garbage combustion, and solid fuel combustion. Among them, solid fuel combustion is a newly promoted technology. It solidifies biomass into a shape and then uses traditional coal-fired equipment for combustion. Existing biomass pellet fuel uses pelleting devices in the production process. However, existing pelletizing equipment still has the following technical problems in use: After existing pelleting equipment processes biomass fuel into pellets through extrusion, the fuel pellets inevitably contain some biomass fuel powder and debris. However, current pelleting equipment cannot quickly separate these powder and debris from the fuel pellets after pelleting, which not only affects the production quality of the fuel pellets, but also prevents these powder and debris from being recycled, resulting in the waste of biomass fuel.

[0003] Therefore, a biomass pellet fuel production pelletizing device is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] The purpose of this invention is to provide a biomass pellet fuel production pelletizing apparatus to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a biomass pellet fuel production pelletizing device, comprising a support frame, wherein symmetrical fixing frames are fixed on the upper side of the support frame, and a pelletizing unit is installed and fixed between the two fixing frames. A cutting unit is fixed to the upper front end of the granulation unit; A particle conveying unit is fixed to the front end of the upper side of the support frame, a separation box is fixed to the right end of the particle conveying unit, a blower fan is fixed to the left side of the separation box, and a suction fan is fixed to the right side of the separation box. The upper end of the support frame is located directly below the separator box and a fuel particle collection tank is placed there. A connecting hose is fixed to the right end of the suction fan. A sealing cap is fixed to the other end of the connecting hose. A filter box is engaged at the lower end of the sealing cap. The left and right sides of the filter box are threaded with first bolts. The sealing cap is fixed to the upper end of the filter box by the first bolts.

[0006] Preferably, the pelletizing unit includes a pelletizing tube, the left and right sides of which are connected and fixed to two fixing brackets by second bolts. A first motor is fixed to the rear side of the pelletizing tube, and a rotating rod is fixed to the output end of the first motor. The rotating rod is rotatably connected to the rear side of the pelletizing tube. A spiral conveying blade is fixed to the wall of the rotating rod. A pelletizing plate is provided at the front end inside the pelletizing tube, and a biomass fuel holding tank is fixed to the upper right end of the pelletizing tube.

[0007] Preferably, the front end of the granulation tube sidewall is threaded with a uniformly arranged third bolt, and one end of the third bolt extending into the granulation tube is threadedly connected to the granulation plate.

[0008] Preferably, the cutting unit includes a support plate, which is fixedly connected to the upper front end of the granulation tube. A second motor is fixed to the rear side of the support plate, and an output rod is fixed to the front end of the second motor. The output rod is rotatably connected to the support plate, and a particle cutting blade is fixed to the front end of the outer wall of the output rod.

[0009] Preferably, the particle conveying unit includes a conveying chamber, which is fixedly connected to the upper front end of the support frame. Conveying rollers are rotatably connected to the left and right ends inside the conveying chamber. A third motor is fixedly mounted on the rear side of the conveying chamber at the rear ends of the two conveying rollers. The rear ends of the conveying rollers are fixedly connected to the output ends of the third motors. A conveyor belt is provided on the outside of the two conveying rollers. A particle collection port is opened on the upper side of the conveying chamber at the lower end of the granulation plate.

[0010] Preferably, the front and rear sides of the conveyor belt are in contact with the inner wall of the conveyor compartment, and the right end of the conveyor compartment extends into the interior of the separation box.

[0011] Preferably, the lower side of the support frame is fixed with evenly arranged silicone buffer bases.

[0012] Compared with the prior art, the beneficial effects of the present invention are: This application incorporates a pellet conveying unit, a separation box, a blower fan, a suction fan, a fuel pellet collection tank, a connecting hose, a sealing cover, and a filter box. The prepared fuel pellets are discharged into the separation box, where airflow carries away the lighter biomass fuel within the pellets. The fuel pellets fall into the fuel pellet collection tank, while the biomass fuel enters the filter box and is retained there. This not only quickly separates the fuel pellets from the biomass fuel, ensuring the processing quality of the fuel pellets, but also allows for the recycling of the biomass fuel, avoiding waste. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2This is a cross-sectional view of the transfer compartment; Figure 3 for Figure 1 Enlarged view of section A; Figure 4 This is a cross-sectional view of the granulation tube; Figure 5 This is a schematic diagram of the conveyor roller and the third motor.

[0014] In the diagram: 1. Support frame, 2. Fixing frame, 3. Separation box, 4. Blowing fan, 5. Suction fan, 6. Fuel pellet collection tank, 7. Connecting hose, 8. Sealing cover, 9. Filter box, 10. Pelletizing tube, 11. First motor, 12. Rotating rod, 13. Spiral conveyor blade, 14. Pelletizing plate, 15. Biomass fuel container, 16. Support plate, 17. Second motor, 18. Output rod, 19. Conveyor bin, 20. Conveyor roller, 21. Third motor, 22. Conveyor belt, 23. Pellet cutter. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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.

[0017] Example: Please see Figure 1-5 The present invention provides a technical solution: A biomass pellet fuel production pelletizing device includes a support frame 1, with symmetrical fixing frames 2 fixed on the upper side of the support frame 1, and a pelletizing unit installed and fixed between the two fixing frames 2; the biomass fuel raw materials are extruded into long strips of fuel by the pelletizing unit, and the long strips of biomass fuel are cut into pellets by a cutting unit. The size of the pellets can be controlled by controlling the extrusion speed of the pelletizing unit or the cutting speed of the cutting unit. A cutting unit is fixed at the upper front end of the pelletizing unit. The rotation speed of the cutting unit should not be too fast, as it is easy to cause biomass fuel particles to splash when cutting biomass fuel, which will affect collection. Collection protection plates can be installed at both ends of the cutting unit to avoid biomass fuel splashing. A pellet conveying unit is fixed to the front end of the upper side of the support frame 1. A separation box 3 is fixed to the right end of the pellet conveying unit. A blower fan 4 is fixed to the left side of the separation box 3. A suction fan 5 is fixed to the right side of the separation box 3. The prepared biomass fuel pellets fall to the upper end of the pellet conveying unit and are conveyed to the inside of the separation box 3 through the pellet conveying unit. Through the cooperation of the blower fan 4 and the suction fan 5, the biomass fuel pellets are separated from the biomass fuel raw materials. Because the biomass fuel pellets are relatively large, they will fall directly into the fuel pellet collection tank 6 without being affected by the wind. The biomass fuel raw materials are relatively light because they are not compressed into pellets, so they will directly enter the inside of the filter box 9 with the airflow. The upper end of the support frame 1 is located directly below the separation box 3 and a fuel particle collection tank 6 is placed there. A connecting hose 7 is fixed to the right end of the suction fan 5. A sealing cover 8 is fixed to the other end of the connecting hose 7. A filter box 9 is engaged at the lower end of the sealing cover 8. The left and right sides of the filter box 9 are threaded with first bolts. The sealing cover 8 is fixed to the upper end of the filter box 9 by the first bolts. Filter screens are set on the front and rear sides of the filter box 9. The biomass fuel raw materials are filtered and retained inside the filter box 9 through the filtration effect. When a large amount of biomass fuel raw materials have been filtered inside the filter box 9, the sealing cover 8 can be removed and the biomass fuel raw materials inside the filter box 9 can be recycled.

[0018] The pelletizing unit includes a pelletizing tube 10. The left and right sides of the pelletizing tube 10 are connected and fixed to two fixing frames 2 by second bolts. A first motor 11 is fixed to the rear side of the pelletizing tube 10. A rotating rod 12 is fixed to the output end of the first motor 11. The rotating rod 12 is rotatably connected to the rear side of the pelletizing tube 10. A spiral conveying blade 13 is fixed to the rod wall of the rotating rod 12. A pelletizing plate 14 is provided at the front end inside the pelletizing tube 10. A biomass fuel holding tank 15 is fixed to the upper right end of the pelletizing tube 10. The first motor 11 drives the rotating rod 12 at the output end to rotate. The rotating rod 12 drives the spiral conveying blade 13 to rotate. The spiral conveying blade 13 pushes the biomass fuel raw material to contact the pelletizing plate 14 and extrudes it into pellets.

[0019] The front end of the side wall of the pelletizing tube 10 is threaded with a third bolt that is evenly arranged. One end of the third bolt extends into the inside of the pelletizing tube 10 and is threaded to the pelletizing plate 14. The model of the pelletizing plate 14 can be changed according to the model of the biomass fuel pellets to be processed. The size of the pelletizing holes opened on the side wall of different pelletizing plates 14 is different.

[0020] The cutting unit includes a support plate 16, which is fixedly connected to the upper front end of the pelletizing tube 10. A second motor 17 is fixed to the rear side of the support plate 16, and an output rod 18 is fixed to the front end of the second motor 17. The output rod 18 is rotatably connected to the support plate 16. A pellet cutting blade 23 is fixed to the front end of the outer wall of the output rod 18. The output rod 18 at the output end is rotated by the second motor 17, and the output rod 18 drives the pellet cutting blade 23 to rotate. The rear side of the pellet cutting blade 23 contacts the front side of the pelletizing plate 14, thereby processing the biomass fuel strips into pellets.

[0021] The pellet conveying unit includes a conveying chamber 19, which is fixedly connected to the upper front end of the support frame 1. Conveying rollers 20 are rotatably connected to the left and right ends inside the conveying chamber 19. A third motor 21 is fixedly installed at the rear end of the two conveying rollers 20 on the rear side of the conveying chamber 19. The rear end of the conveying rollers 20 is fixedly connected to the output end of the third motor 21. A conveyor belt 22 is provided on the outside of the two conveying rollers 20. A pellet collection port is opened at the lower end of the pelletizing plate 14 on the upper side of the conveying chamber 19. The two third motors 21 drive the conveying rollers 20 at the output end to rotate, and the two conveying rollers 20 drive the conveyor belt 22 to move, thereby conveying the biomass fuel pellets collected at the upper end.

[0022] The front and rear sides of the conveyor belt 22 are in contact with the inner wall of the conveyor chamber 19. The right end of the conveyor chamber 19 extends into the interior of the separation box 3, ensuring that there is no large gap between the conveyor belt 22 and the inner wall of the conveyor chamber 19, so that no particles will fall to the bottom of the conveyor chamber 19 through the gap during the conveying of biomass fuel particles.

[0023] The lower side of the support frame 1 is fixed with evenly arranged silicone buffer bases to ensure the stability of the entire device.

[0024] Working principle: During processing, raw materials such as wood chips, straw, rice husks, and bamboo chips are crushed to ≤20mm by a coarse crusher, and then finely crushed to 3-5mm by a hammer mill to ensure uniform particle size. The moisture content of the raw materials is controlled at 12%-18% by a drum dryer, and the drying temperature is ≤120℃ to avoid pyrolysis failure of the raw materials. Iron filings and impurities are removed by a magnetic separator, and dust and light impurities are removed by air separation to prevent damage to the mold and pressure roller.

[0025] After preliminary processing, the biomass fuel is poured into the biomass fuel container 15 and slowly leaks into the pelletizing tube 10. The first motor 11 at the rear end is started, which drives the rotating rod 12 and the spiral conveyor blade 13 at the output end to rotate, extruding the biomass fuel. Together with the pelletizing plate 14, the biomass fuel is extruded into long strips. The second motor 17 is started, which drives the output rod 18 and the pellet cutting blade 23 at the output end to rotate at a constant speed, cutting the long strips of biomass fuel into pellets, which fall into the conveying chamber 19. The two third motors 21 are started, which drive the conveying roller 20 and the conveyor belt 22 at the output end to rotate, thereby conveying the biomass fuel pellets to the separation box 3. The blower fan 4 and the suction fan 5 are started. Due to the large mass of the biomass fuel pellets, they will fall directly into the fuel pellet collection tank 6. The biomass fuel raw materials will enter the filter box 9 through the connecting hose 7 and be filtered and retained inside the filter box 9. When a large amount of fuel particles are collected inside the fuel particle collection tank 6, they are dumped out and the biomass fuel raw materials inside the filter box 9 are recycled and processed into particles again.

[0026] It should be noted that the electrical components mentioned in this invention have had their wiring harnesses combed according to actual conditions during manufacturing, so that the wiring harnesses will not be tangled or affect the operation. All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The control method of this invention is through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. It should be noted that the electrical components mentioned in this invention have been sorted according to the actual situation during manufacturing, so as not to cause the wire harness to become tangled or affect the operation. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0027] In the description of this invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description, and is 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 invention.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or basic characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of the invention is defined by the appended claims rather than the foregoing description. Therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A biomass pellet fuel production pelletizing device, comprising a support frame (1), characterized in that, The upper side of the support frame (1) is fixed with symmetrical fixing frames (2), and the granulation unit is installed and fixed between the two fixing frames (2); A cutting unit is fixed to the upper front end of the granulation unit; A particle conveying unit is fixed to the front end of the upper side of the support frame (1), a separation box (3) is fixed to the right end of the particle conveying unit, a blower fan (4) is fixed to the left side of the separation box (3), and a suction fan (5) is fixed to the right side of the separation box (3). The upper end of the support frame (1) is located directly below the separator (3) and a fuel particle collection tank (6) is placed there. A connecting hose (7) is fixed to the right end of the suction fan (5). A sealing cap (8) is fixed to the other end of the connecting hose (7). A filter box (9) is engaged at the lower end of the sealing cap (8). The left and right sides of the filter box (9) are threaded with first bolts. The sealing cap (8) is fixed to the upper end of the filter box (9) by the first bolts.

2. The biomass pellet fuel production pelletizing device according to claim 1, characterized in that: The pelletizing unit includes a pelletizing tube (10). The left and right sides of the pelletizing tube (10) are connected and fixed to two fixing brackets (2) by second bolts. A first motor (11) is fixed to the rear side of the pelletizing tube (10). A rotating rod (12) is fixed to the output end of the first motor (11). The rotating rod (12) is rotatably connected to the rear side of the pelletizing tube (10). A spiral conveying blade (13) is fixed to the rod wall of the rotating rod (12). A pelletizing plate (14) is provided at the front end inside the pelletizing tube (10). A biomass fuel storage tank (15) is fixed to the right end of the upper side of the pelletizing tube (10).

3. The biomass pellet fuel production pelletizing device according to claim 2, characterized in that: The front end of the side wall of the granulation tube (10) is threaded with a third bolt arranged in a uniform manner. The end of the third bolt extending into the interior of the granulation tube (10) is threadedly connected to the granulation plate (14).

4. The biomass pellet fuel production pelletizing device according to claim 2, characterized in that: The cutting unit includes a support plate (16), which is fixedly connected to the upper front end of the granulation tube (10). A second motor (17) is fixed to the rear side of the support plate (16), and an output rod (18) is fixed to the front end of the second motor (17). The output rod (18) is rotatably connected to the support plate (16), and a particle cutting blade (23) is fixed to the front end of the outer wall of the output rod (18).

5. A biomass pellet fuel production pelletizing device according to claim 2, characterized in that: The particle conveying unit includes a conveying chamber (19), which is fixedly connected to the upper front end of the support frame (1). The left and right ends of the conveying chamber (19) are rotatably connected to conveying rollers (20). The rear side of the conveying chamber (19) is fixedly connected to the rear ends of the two conveying rollers (20). The rear end of the conveying rollers (20) is fixedly connected to the output end of the third motor (21). The two conveying rollers (20) are jointly provided with a conveyor belt (22) on their exterior. The upper side of the conveying chamber (19) is provided with a particle collection port at the lower end of the granulation plate (14).

6. The biomass pellet fuel production pelletizing device according to claim 5, characterized in that: The front and rear sides of the conveyor belt (22) are in contact with the inner wall of the conveyor chamber (19), and the right end of the conveyor chamber (19) extends into the interior of the separation box (3).

7. The biomass pellet fuel production pelletizing device according to claim 1, characterized in that: The lower side of the support frame (1) is fixed with evenly arranged silicone buffer bases.

Images