A combustion device for burning biomass particles

Abstract

The present invention relates to the field of biomass combustion, and specifically to a combustion device for burning biomass particles. It includes a feeding mechanism and a smoke extractor, a combustion chamber, which is connected to the output end of the feeding mechanism and the input end of the smoke extractor respectively, and the combustion chamber ignites the biomass particles introduced into it through the feeding mechanism; a crushing mechanism, which is connected to the combustion chamber, includes a feeding plate and a crushing roller, the feeding plate is slidably connected to the combustion chamber, and the crushing roller is rotatably arranged above the feeding plate, and the crushing roller crushes the biomass particles on the feeding plate when the feeding plate moves; a dust reduction mechanism, which is connected to the combustion chamber, includes a dust reduction plate and two limiting side plates, the dust reduction plate is slidably connected to the upper end of the combustion chamber and intercepts small-diameter biomass particles, and the two limiting side plates are respectively fixed to the two side walls inside the combustion chamber. This device can crush the biomass particles to make them fully burn, and prevent the small particle debris generated during the crushing process of the biomass particles from being sucked away by the smoke extractor.

Description

Technical Field

[0001] The invention relates to the field of biomass combustion, and in particular to a combustion device for burning biomass particles. Background Art

[0002] During the combustion of biomass pellets, traditional biomass pellet combustion equipment needs to break them up when the firepower is weakened, so as to ensure that the air and biomass pellets are fully in contact, promote the combustion reaction, and improve the combustion efficiency. However, this process often requires manual operation by operators, which is not only cumbersome but also requires high-temperature operation, which greatly affects the personal safety of operators.

[0003] At the same time, small particles of debris may generate dust during the crushing process. If these dusts are not handled, they may affect the environment and the health of operators. At the same time, since the existing combustion equipment needs to be equipped with a smoke extractor to extract the smoke, the small particles of debris generated during the crushing process will also be sucked into the smoke extractor along with the smoke. Therefore, in the existing crushing process, the operator needs to temporarily shut down the combustion equipment, and then restart the combustion equipment again after the dust dissipates. In this process, frequent starting and stopping of the combustion equipment will increase the wear and failure risk of the combustion equipment.

[0004] To this end, we need to improve the existing combustion equipment based on its shortcomings and improve the combustion efficiency of biomass particles. Summary of the invention

[0005] Based on this, it is necessary to provide a combustion device for burning biomass particles in response to the existing technical problems.

[0006] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0007] A combustion device for burning biomass particles, comprising a feeding mechanism and a smoke extractor, and further comprising;

[0008] The combustion chamber is connected to the output end of the feeding mechanism and the input end of the smoke extractor, respectively, and the combustion chamber ignites the biomass particles introduced into the combustion chamber through the feeding mechanism;

[0009] The crushing mechanism is connected to the combustion chamber and includes a feeding tray and a crushing roller. The feeding tray is slidably connected to the combustion chamber. The crushing roller is rotatably arranged above the feeding tray. The crushing roller crushes the biomass particles on the feeding tray when the feeding tray moves.

[0010] The dust reduction mechanism is connected to the combustion chamber and comprises a dust reduction plate and two limiting side plates. The dust reduction plate is slidably connected to the upper end of the combustion chamber and intercepts small biomass particles. The two limiting side plates are respectively fixed to the two side walls inside the combustion chamber.

[0011] Furthermore, a plurality of material leakage holes are formed in an array at equal intervals on the feeding tray, and a plurality of dust reduction holes are formed in an array at equal intervals on the dust reduction plate.

[0012] Furthermore, the crushing mechanism also includes a feeding motor, two feeding racks, two feeding gears and four feeding racks. The feeding motor is fixedly arranged on one side of the combustion chamber. The two feeding gears are arranged in a symmetrical state and are rotatably connected to the two limiting side plates. The two feeding gears are coaxially fixed to the output end of the feeding motor. The two feeding racks are respectively slidably connected to the two limiting side plates. The two feeding racks are respectively meshed with the two feeding gears, and each feeding rack and the feeding plate are respectively connected through two feeding racks.

[0013] Furthermore, the crushing mechanism also includes a connecting plate, a positioning plate, a plurality of connecting rollers and a plurality of clamping springs. The positioning plate is arranged above the crushing roller and is fixedly connected to the top of the combustion chamber. The connecting plate is arranged at the upper end of the crushing roller and is slidably connected to the positioning plate. A plurality of connecting rollers are respectively rotatably connected to the lower end of the connecting plate and slide against the crushing roller. A plurality of clamping springs are arranged in an equiangular array along the upper end of the connecting plate. The upper end of the clamping spring is fixedly connected to the combustion chamber, and the lower end is fixedly connected to the connecting plate.

[0014] Furthermore, the crushing mechanism also includes a dual-axis motor, two first gears, two second gears, two first pulleys, two tensioners, two second pulleys and two first steel belts. The dual-axis motor is fixedly arranged at the upper end of the combustion chamber. The two first gears are respectively coaxially fixedly connected to the two output ends of the dual-axis motor. The two first gears and the two second gears are respectively rotatably connected to the side walls of the combustion chamber. The first gear is meshed with the second gear. The two first pulleys are respectively coaxially fixedly connected to the two second gears. The two second pulleys are respectively coaxially fixedly connected to the two ends of the crushing roller. The two tensioners are respectively fixedly connected to the two limiting side plates. The two first pulleys and the two second pulleys are respectively connected through the two first steel belts. The first steel belt is kept taut by the tensioner.

[0015] Furthermore, the crushing mechanism also includes two fire baffles, which are respectively arranged at the two ends of the crushing roller and fixedly connected to the side walls of the limiting side plates, and the two ends of the crushing roller are respectively slidably connected to the fire baffles through the corrugated cover.

[0016] Furthermore, the dust reduction mechanism also includes a pushing motor, two pushing gears, two third pulleys, two fourth pulleys, two second steel belts, two pressure gears, two pressure racks and two traction plates. The pushing motor is arranged on the side of the combustion chamber and is fixedly connected to the side walls of the combustion chamber. The two pushing gears are arranged symmetrically and are rotatably connected to the two sides of the combustion chamber. The third pulley close to the pushing motor is coaxially fixedly connected to the output end of the pushing motor, the two fourth pulleys are respectively coaxially fixedly connected to the two pushing gears, the two fourth pulleys are respectively rotatably connected to the two sides of the combustion chamber, the two third pulleys and the two fourth pulleys are connected through two second steel belt transmissions, and interlayers are respectively formed on both sides of the combustion chamber, the two pressure gears are rotatably arranged in the two interlayers, the two pressure gears and the two third pulleys are coaxially fixedly connected, the two pressure racks are respectively slidably connected to the two sides of the combustion chamber, the two traction plates are respectively slidably connected to the two sides of the combustion chamber and are fixedly connected to the pressure racks, and the two traction plates are rotatably connected to the two ends of the crushing roller through guide rollers.

[0017] Furthermore, the dust reduction mechanism also includes two reversing gears, two speed gears and two push racks. The two reversing gears are respectively rotatably connected to the two sides of the combustion chamber and mesh with the two push gears. The two speed gears are respectively rotatably arranged in the interlayer and are coaxially fixed with the two reversing gears. The two push racks are respectively slidably arranged in the interlayer and mesh with the two speed gears. The two push racks are respectively fixed to the two ends of the dust reduction plate.

[0018] Furthermore, the dust reduction mechanism also includes two cleaning steel brushes and four cleaning gears. The two cleaning steel brushes are rotatably arranged on both sides of the dust reduction plate and are against the dust reduction plate. Each cleaning steel brush is fixedly connected to a cleaning gear at both ends. The two adjacent cleaning gears are meshed with each other, and the cleaning gear located at the bottom is meshed with the reversing gear.

[0019] Furthermore, the dust reduction mechanism also includes two protective plates, two cleaning scrapers, a number of cleaning springs, a number of cleaning pins and two abutting supports. The two abutting supports are respectively arranged on the sides of the two cleaning steel brushes and are fixedly connected to the combustion chamber. The two cleaning scrapers are respectively arranged on the side of the two abutting supports close to the two cleaning steel brushes. The two cleaning scrapers are respectively abutted against the two cleaning steel brushes. A number of cleaning springs are respectively arranged in an array at equal intervals along the two protective plates. One end of the cleaning spring is fixedly connected to the protective plate, and the other end is fixedly connected to the cleaning scraper. A number of cleaning pins are respectively coaxially sleeved with the number of cleaning springs. One end of the number of cleaning pins is fixedly connected to the cleaning scraper, and the other end is slidably connected to the protective plate. The two protective plates are respectively arranged on both sides of the two cleaning steel brushes and abut against the cleaning steel brushes.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] First: This device uses a crushing roller to automatically crush the biomass particles on the feeding tray, without the need for manual operation by the operator. This improves the crushing efficiency while ensuring the personal safety of the operator, thereby increasing the safety factor of the equipment;

[0022] Second, the device intercepts small particles of debris generated during the crushing process through the dust suppression plate, ensuring that the smoke can be drawn out of the combustion chamber along with the smoke extractor, while the crushed biomass particles will remain in the combustion chamber, preventing small particles of debris from being sucked into the smoke extractor and causing damage to the smoke extractor;

[0023] Third: This device uses a clean steel brush to fully scrub the upper and lower sides of the dust suppression plate to prevent the dust suppression holes on the dust suppression plate from being blocked by particulate matter and affecting the filtering effect. At the same time, this device also uses a cleaning scraper to scrape off the sediment attached to the clean steel brush to improve the filtering efficiency of the flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment;

[0025] Figure 2 is a three-dimensional structural schematic diagram of the embodiment from another angle;

[0026] Figure 3 yes Figure 2 A magnified view of the structure at center;

[0027] Figure 4 is a schematic diagram of a three-dimensional structure decomposition of an embodiment;

[0028] Figure 5 yes Figure 4 A magnified view of the structure at B in the middle;

[0029] Figure 6 yes Figure 4 A magnified view of the structure at C in the middle;

[0030] Figure 7 1 is a schematic diagram of the exploded three-dimensional structure of the fire baffle in the embodiment;

[0031] Figure 8 is a plan cross-sectional view of a combustion chamber in an embodiment;

[0032] Fig. 9 yes Figure 8 A magnified view of the structure at D in the middle;

[0033] Fig.10 yes Figure 8 Enlarged view of the structure at E in the middle;

[0034] Fig.11 is a three-dimensional structural cross-sectional view of a combustion chamber in an embodiment;

[0035] Fig.12 yes Fig.11 Enlarged view of the structure at F in the middle.

[0036] The numbers in the figure are:

[0037] 1. Feeding mechanism; 2. Smoke extractor; 3. Combustion chamber; 4. Limiting side plate; 5. Interlayer; 6. Crushing mechanism; 7. Double-axis motor; 8. First gear; 9. Second gear; 10. First pulley; 11. Tensioner; 12. Second pulley; 13. First steel belt; 14. Fire baffle; 15. Feeding tray; 16. Leakage hole; 17. Feeding motor; 18. Feeding rack; 19. Feeding gear; 20. Feeding rack; 21. Crushing roller; 22. Connecting plate; 23. Connecting roller; 24. Tightening spring ; 25. Positioning plate; 26. Dust reduction mechanism; 27. Dust reduction plate; 28. Dust reduction hole; 29. ​​Pushing motor; 30. Pushing gear; 31. Third pulley; 32. Fourth pulley; 33. Second steel belt; 34. Pressing gear; 35. Pressing rack; 36. Traction plate; 37. Reversing gear; 38. Speed ​​gear; 39. Pushing rack; 40. Cleaning steel brush; 41. Cleaning gear; 42. Protective plate; 43. Cleaning scraper; 44. Cleaning spring; 45. Cleaning pin; 46. Tightening support. DETAILED DESCRIPTION

[0038] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] refer to Figures 1 to 12 , a combustion device for burning biomass particles, comprising a feeding mechanism 1 and a smoke extractor 2, and further comprising;

[0040] The combustion chamber 3 is connected to the output end of the feeding mechanism 1 and the input end of the smoke extractor 2 respectively, and the combustion chamber 3 ignites the biomass particles introduced into the combustion chamber through the feeding mechanism 1;

[0041] The crushing mechanism 6 is connected to the combustion chamber 3 and includes a feeding tray 15 and a crushing roller 21. The feeding tray 15 is slidably connected to the combustion chamber 3 (such as Fig.11 As shown in the figure, the crushing roller 21 is rotatably arranged above the feeding tray 15, and the crushing roller 21 crushes the biomass particles on the feeding tray 15 when the feeding tray 15 moves;

[0042] The dust suppression mechanism 26 is connected to the combustion chamber 3 and includes a dust suppression plate 27 and two limiting side plates 4. The dust suppression plate 27 is slidably connected to the upper end of the combustion chamber 3 and intercepts small biomass particles (such as Fig.12 As shown), the two limiting side plates 4 are respectively fixedly connected to the two side walls inside the combustion chamber 3.

[0043] When the device is in operation, biomass particles are fed into the combustion chamber 3 through the feeding mechanism 1. After the biomass particles fall onto the feeding tray 15, the combustion chamber 3 will ignite the biomass particles. During this process, the feeding tray 15 will reciprocate in the horizontal direction to ensure that the biomass particles can be evenly distributed on the feeding tray 15, thereby increasing the contact area between the biomass particles and the air and improving its combustion efficiency.

[0044] In order to improve the combustion efficiency of biomass particles, when the crushing roller 21 rotates and approaches the feeding tray 15, the crushing roller 21 will crush the biomass particles on the feeding tray 15 to further improve its combustion efficiency and facilitate subsequent processing. However, in this process, small particle debris will move toward the input end of the smoke extractor 2 under the action of hot air, and when the crushing roller 21 approaches the feeding tray 15, the dust suppression plate 27 will also block the combustion chamber 3 and the input end of the smoke extractor 2 to ensure that small particle debris will be intercepted by the dust suppression plate 27 and will not be sucked into the smoke extractor 2.

[0045] In order to supplement the specific structure of the dust suppression plate 27 and the feeding tray 15, the following features are also specifically provided:

[0046] refer to Fig.12 The feeding tray 15 is provided with a plurality of material leakage holes 16 in an array at equal intervals, and the dust suppression plate 27 is provided with a plurality of dust suppression holes 28 in an array at equal intervals. Fig. 9 and Fig.12 When the crushing roller 21 crushes the biomass particles on the feeding plate 15, the crushed biomass particles will fall downward through a plurality of leakage holes 16 for subsequent cleaning, and the small particle debris generated during the crushing process will be intercepted by the dust suppression plate 27. A plurality of dust suppression holes 28 are used to circulate the flue gas during the combustion process.

[0047] In order to drive the feeding tray 15 to reciprocate, the following features are also specifically provided:

[0048] The crushing mechanism 6 also includes a feeding motor 17, two feeding racks 18, two feeding gears 19 and four feeding racks 20. The feeding motor 17 is fixedly arranged on one side of the combustion chamber 3 (refer to Figure 2 ), the two feeding gears 19 are arranged in a symmetrical state and are rotatably connected to the two limiting side plates 4 (reference Figure 8), two feeding gears 19 are coaxially fixedly connected to the output end of the feeding motor 17, two feeding racks 18 are respectively slidably connected to the two limiting side plates 4, and the two feeding racks 18 are respectively meshed with the two feeding gears 19, and each feeding rack 18 and the feeding tray 15 are respectively connected through two feeding racks 20. When the feeding motor 17 is started, the feeding motor 17 will drive the two feeding racks 18 to move through the two feeding gears 19, and the two feeding racks 18 will drive the feeding tray 15 to reciprocate when moving, thereby achieving uniform distribution of biomass particles on the upper end of the feeding tray 15.

[0049] In order to prevent the flame from passing over the crushing roller 21 when the crushing roller 21 moves, the following features are also specifically provided:

[0050] The crushing mechanism 6 also includes a connecting plate 22, a positioning plate 25, a plurality of connecting rollers 23 and a plurality of pressing springs 24. The positioning plate 25 is arranged above the crushing roller 21 and is fixedly connected to the top of the combustion chamber 3. The connecting plate 22 is arranged at the upper end of the crushing roller 21 and is slidably connected to the positioning plate 25 (refer to Fig. 9 ), a plurality of connecting rollers 23 are rotatably connected to the lower end of the connecting plate 22 and slide against the crushing roller 21, a plurality of abutting springs 24 are arranged in an array at equal angles along the upper end of the connecting plate 22, the upper end of the abutting spring 24 is fixedly connected to the combustion chamber 3, and the lower end is fixedly connected to the connecting plate 22. When the crushing roller 21 rotates, the upper end of the crushing roller 21 will slide against the plurality of connecting rollers 23, and when the crushing roller 21 moves downward and approaches the feeding tray 15, the connecting plate 22 will move while maintaining abutment with the crushing roller 21 under the action of the plurality of abutting springs 24.

[0051] In order to drive the crushing roller 21 to rotate, the following features are also specifically provided:

[0052] The crushing mechanism 6 also includes a double-shaft motor 7, two first gears 8, two second gears 9, two first pulleys 10, two tensioners 11, two second pulleys 12 and two first steel belts 13. The double-shaft motor 7 is fixedly arranged at the upper end of the combustion chamber 3, and the two first gears 8 are respectively coaxially fixedly connected to the two output ends of the double-shaft motor 7 (refer to Figure 3 ), the two first gears 8 and the two second gears 9 are respectively rotatably connected to the side walls of the combustion chamber 3, the first gear 8 is meshed with the second gear 9, and the two first pulleys 10 are respectively coaxially fixedly connected to the two second gears 9 (reference Figure 3 and Figure 7), the two second pulleys 12 are respectively coaxially fixedly connected to the two ends of the crushing roller 21, the two tensioners 11 are respectively fixedly connected to the two limiting side plates 4, the two first pulleys 10 and the two second pulleys 12 are respectively connected through the two first steel belts 13, and the first steel belt 13 is kept in a taut state by the tensioner 11. After the dual-axis motor 7 is started, the dual-axis motor 7 will drive the two second gears 9 through the two first gears 8, and the two second gears 9 will drive the two first pulleys 10 to rotate, and the two first pulleys 10 will drive the two second pulleys 12 to rotate through the two first steel belts 13, and the two second pulleys 12 will drive the crushing roller 21 fixed thereto to rotate, and the tensioner 11 ensures that the first steel belt 13 remains in a taut state during the transmission process.

[0053] In order to protect the first pulley 10, the second pulley 12 and the tensioner 11 and other structures, the following features are also specifically provided:

[0054] The crushing mechanism 6 further includes two fire baffles 14, which are respectively arranged at both ends of the crushing roller 21 and fixedly connected to the side wall of the limiting side plate 4 (refer to Figure 7 ), both ends of the crushing roller 21 are slidably connected to the fire baffle 14 through the corrugated cover. When the crushing roller 21 moves, the crushing roller 21 moves along the fire baffle 14, and the fire baffle 14 can prevent the flame and smoke generated during the combustion process from damaging the first pulley 10, the second pulley 12 and the tensioner 11.

[0055] In order to realize the movement of the crushing roller 21, the following features are also specifically provided:

[0056] The dust suppression mechanism 26 also includes a push motor 29, two push gears 30, two third pulleys 31, two fourth pulleys 32, two second steel belts 33, two pressing gears 34, two pressing racks 35 and two traction plates 36. The push motor 29 is arranged on the side of the combustion chamber 3 and is fixedly connected to the side wall of the combustion chamber 3 (refer to Figure 4 ), the two push gears 30 are symmetrically arranged and rotatably connected to the two sides of the combustion chamber 3, the third pulley 31 close to the push motor 29 is coaxially fixedly connected to the output end of the push motor 29, and the two fourth pulleys 32 are coaxially fixedly connected to the two push gears 30 respectively (refer to Figure 5 ), the two fourth pulleys 32 are respectively connected to the two sides of the combustion chamber 3 for rotation, the two third pulleys 31 and the two fourth pulleys 32 are connected through two second steel belts 33 for transmission, and the two sides of the combustion chamber 3 are respectively formed with interlayers 5 (reference Figure 6), two pressing gears 34 are rotatably arranged in the two interlayers 5, the two pressing gears 34 and the two third pulleys 31 are coaxially fixedly connected, the two pressing racks 35 are respectively slidably connected to the two sides of the combustion chamber 3, the two traction plates 36 are respectively slidably connected to the two sides of the combustion chamber 3 and are fixedly connected to the pressing racks 35, and the two traction plates 36 are respectively rotatably connected to the two ends of the crushing roller 21 through guide rollers (refer to Figure 6 and Figure 7 ). After the push motor 29 is started, the push motor 29 drives the pressing gear 34 to rotate through the third pulley 31, and the pressing gear 34 drives the traction plate 36 to move through the pressing rack 35. When the traction plate 36 moves, it drives the crushing roller 21 to move. When the third pulley 31 rotates, the third pulley 31 drives the fourth pulley 32 to rotate through the second steel belt 33.

[0057] In order to drive the dust suppression plate 27 to move, the following features are also specifically provided:

[0058] The dust suppression mechanism 26 further includes two reversing gears 37, two speed change gears 38 and two push racks 39. The two reversing gears 37 are respectively connected to the two sides of the combustion chamber 3 for rotation and mesh with the two push gears 30 (refer to Figure 5 ), the two speed change gears 38 are respectively rotatably arranged in the interlayer 5 and are coaxially fixedly connected with the two reversing gears 37 (reference Figure 5 and Figure 6 ), two push racks 39 are respectively slidably arranged in the interlayer 5 and meshed with two speed gears 38, and the two push racks 39 are respectively fixedly connected to the two ends of the dust suppression plate 27. When the two push gears 30 rotate, the two push gears 30 will drive the two speed gears 38 to rotate through the two reversing gears 37, and the two speed gears 38 will drive the dust suppression plate 27 to move through the two push racks 39, ensuring that when the crushing roller 21 moves downward and approaches the feeding tray 15, the dust suppression plate 27 will block the channel between the combustion chamber 3 and the input end of the smoke extractor 2.

[0059] In order to achieve the cleaning of the dust suppression plate 27, the following features are also specifically provided:

[0060] The dust suppression mechanism 26 further includes two cleaning steel brushes 40 and four cleaning gears 41. The two cleaning steel brushes 40 are rotatably disposed on both sides of the dust suppression plate 27 and abut against the dust suppression plate 27 (refer to Fig.10 ), each cleaning steel brush 40 is respectively connected at both ends with a cleaning gear 41 (reference Figure 3), the two adjacent cleaning gears 41 are meshed, and the cleaning gear 41 located below is meshed with the reversing gear 37. When the reversing gear 37 rotates, the reversing gear 37 drives the cleaning steel brush 40 to rotate through the cleaning gear 41. When the two cleaning steel brushes 40 rotate, they brush the dust suppression plate 27 to prevent the dust suppression plate 27 from affecting the ventilation effect due to the absorption of too much debris.

[0061] In order to scrape away impurities on the cleaning steel brush 40, the following features are also specifically provided:

[0062] The dust suppression mechanism 26 further includes two protective plates 42, two cleaning scrapers 43, a plurality of cleaning springs 44, a plurality of cleaning pins 45 and two abutting supports 46. The two abutting supports 46 are respectively arranged on the sides of the two cleaning steel brushes 40 and are fixedly connected to the combustion chamber 3. The two cleaning scrapers 43 are respectively arranged on one side of the two abutting supports 46 close to the two cleaning steel brushes 40 (refer to Fig.10 ), two cleaning scrapers 43 are respectively against two cleaning steel brushes 40, a number of cleaning springs 44 are respectively arranged in an array with equal intervals along two protective plates 42, one end of the cleaning spring 44 is fixedly connected to the protective plate 42, and the other end is fixedly connected to the cleaning scraper 43, a number of cleaning pins 45 are respectively sleeved coaxially with a number of cleaning springs 44, one end of a number of cleaning pins 45 is fixedly connected to the cleaning scraper 43, and the other end is slidably connected to the protective plate 42, and the two protective plates 42 are respectively arranged on both sides of the two cleaning steel brushes 40 and against the cleaning steel brushes 40. When it is necessary to scrape off the debris on the cleaning steel brushes 40, the two cleaning scrapers 43 are pressed against the outside of the two cleaning steel brushes 40 under the action of the cleaning springs 44, ensuring that the cleaning steel brushes 40 can be cleaned by the cleaning scrapers 43 during the rotation process.

[0063] The working principle of the device is that when the device is in operation, the biomass particles are fed into the combustion chamber 3 through the feeding mechanism 1. After the biomass particles fall onto the feeding tray 15, the combustion chamber 3 will ignite the biomass particles. During this process, the feeding motor 17 is started to drive the feeding tray 15 to reciprocate in the horizontal direction, ensuring that the biomass particles can be evenly distributed on the feeding tray 15, thereby increasing the contact area between the biomass particles and the air and improving its combustion efficiency.

[0064] In order to improve the combustion efficiency of biomass particles, the push motor 29 is started to drive the crushing roller 21 close to the feeding tray 15, and the dual-axis motor 7 is started to drive the crushing roller 21 to rotate. At this time, the crushing roller 21 will crush the biomass particles on the feeding tray 15, further improving its combustion efficiency and facilitating subsequent processing.

[0065] The hot air flow generated by the combustion process will push the small particle debris generated by the crushing process to move toward the input end of the smoke extractor 2. Therefore, when the crushing roller 21 approaches the feed tray 15, under the action of the push rack 39, the dust suppression plate 27 will also block the combustion chamber 3 and the input end of the smoke extractor 2 to ensure that the small particle debris will be intercepted by the dust suppression plate 27 and will not be sucked into the smoke extractor 2.

[0066] Each time the dust suppression plate 27 is extended and retracted, the two cleaning steel brushes 40 will scrub the dust suppression plate 27 to prevent the dust suppression holes 28 on the dust suppression plate 27 from being blocked and affecting the extraction of smoke by the smoke extractor 2. Part of the impurities attached to the cleaning steel brushes 40 will be scraped off by the corresponding cleaning scraper to avoid affecting the subsequent cleaning ability of the cleaning steel brushes 40.

[0067] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A combustion device for burning biomass particles, comprising a feeding mechanism and a smoke extractor, characterized in that: Also includes: The combustion chamber is connected to the output end of the feeding mechanism and the input end of the smoke extractor, respectively, and the combustion chamber ignites the biomass particles introduced into the combustion chamber through the feeding mechanism; The crushing mechanism is connected to the combustion chamber and includes a feeding tray and a crushing roller. The feeding tray is slidably connected to the combustion chamber. The crushing roller is rotatably arranged above the feeding tray. The crushing roller crushes the biomass particles on the feeding tray when the feeding tray moves. The dust reduction mechanism is connected to the combustion chamber and includes a dust reduction plate and two limiting side plates. The dust reduction plate is slidably connected to the upper end of the combustion chamber and intercepts small biomass particles. The two limiting side plates are respectively fixed to two side walls inside the combustion chamber. The two traction plates are slidably connected to the two ends of the crushing roller and the two traction plates, and the two traction plates are rotatably connected to the two ends of the crushing roller through the guide rollers. The dust reduction mechanism also includes two reversing gears, two speed gears and two push racks. The two reversing gears are respectively rotatably connected to the two sides of the combustion chamber and are respectively meshed with the two push gears. The two speed gears are respectively rotatably arranged in the interlayer. The speed gears are coaxially fixed with the reversing gears. The two push racks are respectively slidably arranged in the interlayer and are meshed with the two speed gears. The two push racks are respectively fixed to the two ends of the dust reduction plate.

2. A combustion device for burning biomass particles according to claim 1, characterized in that: A plurality of material leakage holes are formed in an array with equal intervals on the feeding tray, and a plurality of dust reduction holes are formed in an array with equal intervals on the dust reduction plate.

3. A combustion device for burning biomass particles according to claim 1, characterized in that: The crushing mechanism also includes a feeding motor, two feeding racks, two feeding gears and four feeding racks. The feeding motor is fixedly arranged on one side of the combustion chamber. The two feeding gears are arranged in a symmetrical state and are rotatably connected to the two limiting side plates respectively. The two feeding gears are coaxially fixed to the output end of the feeding motor. The two feeding racks are slidingly connected to the two limiting side plates respectively. The two feeding racks are respectively meshed with the two feeding gears, and each feeding rack and the feeding plate are respectively connected through two feeding racks.

4. A combustion device for burning biomass particles according to claim 1, characterized in that: The crushing mechanism also includes a connecting plate, a positioning plate, a plurality of connecting rollers and a plurality of retaining springs. The positioning plate is arranged above the crushing roller and is fixedly connected to the top of the combustion chamber. The connecting plate is arranged at the upper end of the crushing roller and is slidably connected to the positioning plate. A plurality of connecting rollers are respectively rotatably connected to the lower end of the connecting plate and slide against the crushing roller. A plurality of retaining springs are arranged in an equiangular array along the upper end of the connecting plate. The upper end of the retaining spring is fixedly connected to the combustion chamber, and the lower end is fixedly connected to the connecting plate.

5. A combustion device for burning biomass particles according to claim 1, characterized in that: The crushing mechanism also includes a double-shaft motor, two first gears, two second gears, two first pulleys, two tensioners, two second pulleys and two first steel belts. The double-shaft motor is fixedly arranged at the upper end of the combustion chamber. The two first gears are respectively coaxially fixedly connected to the two output ends of the double-shaft motor. The two first gears and the two second gears are respectively rotatably connected to the side walls of the combustion chamber. The first gear is meshed with the second gear. The two first pulleys are respectively coaxially fixedly connected to the two second gears. The two second pulleys are respectively coaxially fixedly connected to the two ends of the crushing roller. The two tensioners are respectively fixedly connected to the two limiting side plates. The first pulley and the second pulley are connected through a first steel belt transmission, and the first steel belt is kept taut by the tensioner.

6. A combustion device for burning biomass particles according to claim 1, characterized in that: The crushing mechanism also includes two fire baffles, which are respectively arranged at the two ends of the crushing roller, the fire baffles are fixedly connected to the side walls of the limiting side plates, and the two ends of the crushing roller are respectively slidably connected to the fire baffles through corrugated covers.

7. A combustion device for burning biomass particles according to claim 1, characterized in that: The dust reduction mechanism also includes two cleaning steel brushes and four cleaning gears. The two cleaning steel brushes are rotatably arranged on both sides of the dust reduction plate and are against the dust reduction plate. Both ends of each cleaning steel brush are respectively fixed with a cleaning gear. The two adjacent cleaning gears are meshed with each other, and the cleaning gear located at the bottom is meshed with the reversing gear.

8. A combustion device for burning biomass particles according to claim 7, characterized in that: The dust reduction mechanism also includes two cleaning scrapers and two abutment supports. The two abutment supports are respectively arranged on the sides of the two cleaning steel brushes and are fixedly connected to the combustion chamber. The two cleaning scrapers are respectively arranged on one side of the two abutment supports close to the two cleaning steel brushes, and the two cleaning scrapers are respectively abutted against the two cleaning steel brushes.

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