A biomass pellet combustion boiler system with oxygen supplementation function

Abstract

The present invention relates to the technical field of biomass combustion boilers, and discloses a biomass particle combustion boiler system with an oxygen supplementation function, including a supporting mechanism, wherein the supporting mechanism includes a combustion furnace, the outer wall of the combustion furnace is fixedly connected to a first motor, the output end of the first motor passes through the combustion furnace and is fixedly connected to a driving wheel, an exhaust mechanism is arranged on the top of the combustion furnace, the bottom outer wall of the combustion furnace is fixedly connected to a first fixing frame, the inner wall of the first fixing frame is fixedly connected to a sewage outlet, when the biomass particles are burned in the boiler, the air in the environment is blown into the interior of the combustion furnace through an intake fan, and during the combustion process, a certain amount of oxygen is injected into the interior of the combustion furnace through an intake pipe, so that the biomass particles can be fully burned, thereby reducing the waste of biomass particles, avoiding the increase of use cost, and no large amount of harmful gas will be generated during full combustion, reducing the threat to the environment and human health.

Description

Technical Field

[0001] The invention relates to the technical field of biomass combustion boilers, in particular to a biomass particle combustion boiler system with an oxygen supplementation function. Background Art

[0002] In today's energy utilization field, biomass pellets have attracted much attention as a renewable energy source. However, existing biomass pellet combustion boiler systems often have the problem of insufficient oxygen supply during operation. This not only affects the combustion efficiency and leads to energy waste, but also may produce incomplete combustion products and cause environmental pollution.

[0003] The patent application with application number CN201920878553.5 discloses a circulating fluidized bed boiler combustion-supporting equipment, which relates to the technical field of biomass combustion boilers. It includes a liquid storage tank and at least one spray gun. The spray gun and the liquid storage tank are connected by a pipeline provided with an infusion pump. The spray gun is arranged on the top of the combustion chamber of the circulating fluidized bed boiler and in the channel connecting the combustion chamber and the circulating recycle furnace.

[0004] In summary, in high-altitude areas, due to the relatively low oxygen content, it will be difficult for biomass pellets to burn fully, resulting in reduced energy utilization efficiency, waste of biomass pellets, increased use costs, and incomplete combustion will generate a large amount of harmful gases, posing a threat to the environment and human health.

[0005] To this end, we proposed a biomass pellet combustion boiler system with oxygen supplementation function. Summary of the invention

[0006] In view of the deficiencies of the prior art, the present invention provides a biomass pellet combustion boiler system with an oxygen supplementation function to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a biomass particle combustion boiler system with an oxygen supplementation function, comprising a supporting mechanism, the supporting mechanism comprising a combustion furnace, the outer wall of the combustion furnace is fixedly connected to a first motor, the output end of the first motor runs through the combustion furnace and is fixedly connected to a driving wheel, an exhaust mechanism is arranged on the top of the combustion furnace, a first fixing frame is fixedly connected to the bottom outer wall of the combustion furnace, a sewage outlet is fixedly connected to the inner wall of the first fixing frame, a supporting foot is fixedly connected to the outer wall of the first fixing frame away from the combustion furnace, a connecting rod is fixedly connected to the inner wall of the combustion furnace, and a first fixed shaft is fixedly connected to the outer wall of one end of the connecting rod away from the combustion furnace, and also includes:

[0008] The auxiliary mechanism includes a rotating frame that is slidably connected to the inner wall of the combustion furnace, a groove is provided on the top outer surface of the rotating frame, the inner wall of the groove is rotatably connected to the driving wheel, a first protrusion is fixedly connected to the bottom outer wall of the rotating frame, a combustion-supporting mechanism is provided at the bottom of the rotating frame, an air intake pipe is provided inside the rotating frame, a second connecting pipe is fixedly connected to the outer wall of one end of the air intake pipe close to the rotating frame, an end of the second connecting pipe away from the air intake pipe is fixedly connected to the rotating frame, and a third connecting pipe is fixedly connected to the inner wall of the rotating frame.

[0009] According to the above technical solution, a baffle is fixedly sleeved on the outer wall of the air inlet pipe, a first through hole is opened at the bottom of the baffle, an auxiliary roller is movably sleeved on the outer surface of the third connecting pipe, and a stirring blade is fixedly connected to the outer surface of the auxiliary roller. The baffle is used to prevent the second connecting pipe from being affected during the feeding of biomass particles. The air inlet pipe injects oxygen into the interior of the combustion furnace through the second connecting pipe, thereby achieving the effect of oxygen supplementation.

[0010] According to the above technical solution, the combustion-supporting mechanism includes a sliding frame slidably connected to a first fixed shaft, a first spring is slidably sleeved on the outer surface of the first fixed shaft, the first spring is fixedly connected to the sliding frame at one end close to the connecting rod, and a second inclined plate is fixedly connected to the bottom outer wall of the sliding frame, the second inclined plate is inclined toward one side of the first connecting pipe, and its length gradually becomes longer, which is conducive to injecting the air of the intake fan into the interior of the combustion furnace from the second through hole.

[0011] According to the above technical solution, a second through hole is opened on the inner wall of the bottom of the sliding frame, a flamethrower is fixedly connected to the inner wall of the sliding frame, a fixing ring is fixedly sleeved on the outer surface of the sliding frame, a second protrusion is fixedly connected to the end of the fixing ring away from the sliding frame, the second protrusion is slidably connected to the first protrusion, and causes the sliding frame to vibrate to a certain extent, thereby preventing the residue generated after the combustion of the biomass particles from clogging the second through hole.

[0012] According to the above technical solution, the outer wall of the combustion furnace is fixedly connected to a first connecting pipe, the inner wall of the first connecting pipe on a side away from the combustion furnace is fixedly connected to a second fixing frame, the inner wall of the first connecting pipe is fixedly connected to a filter screen, the outer wall of the second fixing frame is fixedly connected to a second motor, the output end of the second motor passes through the second fixing frame and is fixedly connected to an intake fan, the outer wall of the first connecting pipe is fixedly connected to a support rod, the end of the support rod away from the first connecting pipe is fixedly connected to the first fixing frame, and the end of the first connecting pipe away from the combustion furnace is set to a trumpet shape, which is conducive to the intake fan to better inject outside air into the interior of the combustion furnace.

[0013] According to the above technical solution, the exhaust mechanism includes a top plate slidably connected to the air inlet pipe, the top outer wall of the top plate is fixedly connected to the air outlet pipe, and the inner wall of the top plate is fixedly connected to the first inclined plate, which is annular and has a certain inclination angle, so that the gas inside the combustion furnace can be better discharged through the air outlet pipe.

[0014] According to the above technical solution, the outer wall of the top plate is fixedly connected to a connecting frame, a hydraulic rod is arranged at one end of the connecting frame away from the top plate, a first support block is fixedly sleeved on the outer surface of the hydraulic rod, one end of the first support block away from the hydraulic rod is fixedly connected to the combustion furnace, the output end of the hydraulic rod is fixedly connected to the connecting frame, the outer wall of the end of the hydraulic rod away from the connecting frame is fixedly connected to a second support block, one end of the second support block away from the hydraulic rod is fixedly connected to the combustion furnace, the number of the hydraulic rods is two, and the two hydraulic rods are symmetrically arranged with the central axis of the connecting frame as the center.

[0015] According to the above technical solution, the outer wall of one end of the first support block away from the hydraulic rod is fixedly connected with a second fixed shaft, the top of the first support block is fixedly connected with a second spring, the second spring is away from the first support block and is fixedly connected to the connecting frame, and the second fixed shaft can make the top plate more stable during movement.

[0016] Compared with the prior art, the present invention provides a biomass pellet combustion boiler system with oxygen supplementation function, which has the following beneficial effects:

[0017] 1. The present invention provides a biomass pellet combustion boiler system with an oxygen supplementation function. When the biomass pellets are burned in the boiler, the air in the environment is blown into the combustion furnace through the air intake fan, and during the combustion process, a certain amount of oxygen is injected into the combustion furnace through the air intake pipe, so that the biomass pellets can be fully burned, thereby reducing the waste of biomass pellets and avoiding increased use costs. In addition, a large amount of harmful gases will not be generated during full combustion, reducing the threat to the environment and human health.

[0018] 2. The present invention sets an exhaust mechanism and controls the closing between the top plate and the combustion furnace through a hydraulic rod. When the top plate is separated from the combustion furnace, it can be used for feeding. When the combustion furnace generates exhaust gas during the combustion process, the exhaust gas is blown upward by the air intake fan. The exhaust gas enters the exhaust pipe through the first inclined plate and is then discharged, thereby preventing the exhaust gas from being retained in the combustion furnace for a long time, which causes a decrease in the oxygen content in the combustion furnace.

[0019] 3. The present invention sets an auxiliary mechanism. The first motor drives the rotating frame to rotate in contact with the inner wall of the combustion furnace through the driving wheel. The air intake pipe injects oxygen into the combustion furnace through the second connecting pipe and the third connecting pipe. The biomass particles are stirred by the auxiliary rollers and stirring blades, thereby increasing the contact area between the biomass particles and oxygen and increasing the possibility of sufficient combustion of the biomass particles.

[0020] 4. The present invention provides a combustion-supporting mechanism to inject outside air from the first connecting pipe into the interior of the combustion furnace through the second inclined plate. When the rotating frame rotates, the first protrusion contacts the second protrusion and causes the sliding frame to vibrate, thereby preventing the residues produced after the combustion of the biomass particles from clogging the second through hole and avoiding a reduction in the air flow efficiency inside the combustion furnace, thereby increasing the possibility of sufficient combustion of the biomass particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall front structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall front cross-sectional structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the supporting mechanism structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the exhaust mechanism structure of the present invention;

[0025] Figure 5 It is a schematic diagram of the auxiliary mechanism and combustion-supporting mechanism of the present invention;

[0026] Figure 6 It is a schematic diagram of the auxiliary mechanism structure of the present invention;

[0027] Figure 7 It is a schematic diagram of the combustion supporting mechanism structure of the present invention;

[0028] Figure 8 For the present invention Figure 5 Schematic diagram of the enlarged structure of A.

[0029] In the figure: 1. Support mechanism; 101. Combustion furnace; 102. First motor; 103. Driving wheel; 104. First fixed frame; 105. Drain port; 106. Support foot; 107. First connecting pipe; 108. Second fixed frame; 109. Filter; 110. Second motor; 111. Inlet fan; 112. Support rod; 113. Connecting rod; 114. First fixed shaft; 115. First spring; 2. Exhaust mechanism; 201. Top plate; 202. Exhaust pipe; 203. First support block; 204. Second fixed shaft; 205. Second Spring; 206, second support block; 207, hydraulic rod; 208, first inclined plate; 209, connecting frame; 3, auxiliary mechanism; 301, rotating frame; 302, groove; 303, air inlet pipe; 304, second connecting pipe; 305, baffle; 306, first through hole; 307, third connecting pipe; 308, auxiliary roller; 309, stirring blade; 310, first protrusion; 4, combustion-supporting mechanism; 401, sliding frame; 402, fixing ring; 403, second protrusion; 404, second through hole; 405, flame nozzle; 406, second inclined plate. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Example 1: See Figure 1-Figure 4The present invention provides a technical solution: a biomass particle combustion boiler system with an oxygen supplementation function, comprising a support mechanism 1, the support mechanism 1 comprising a combustion furnace 101, the outer wall of the combustion furnace 101 is fixedly connected to a first motor 102, the output end of the first motor 102 runs through the combustion furnace 101, and is fixedly connected to a driving wheel 103, an exhaust mechanism 2 is arranged on the top of the combustion furnace 101, a first fixed frame 104 is fixedly connected to the outer wall of the bottom of the combustion furnace 101, a sewage outlet 105 is fixedly connected to the inner wall of the first fixed frame 104, and the sewage outlet 105 is used to discharge the residue generated during the combustion of biomass particles, the outer wall of the first fixed frame 104 on one side away from the combustion furnace 101 is fixedly connected to a support foot 106, the inner wall of the combustion furnace 101 is fixedly connected to a connecting rod 113, and the outer wall of the connecting rod 113 on one end away from the combustion furnace 101 is fixedly connected to a first fixed shaft 114, and also includes:

[0034] The auxiliary mechanism 3 includes a rotating frame 301 slidably connected to the inner wall of the combustion furnace 101, a groove 302 is provided on the top outer surface of the rotating frame 301, and the inner wall of the groove 302 is rotatably connected to the driving wheel 103. The bottom outer wall of the rotating frame 301 is fixedly connected with a first protrusion 310, and a combustion-supporting mechanism 4 is arranged at the bottom of the rotating frame 301. An air intake pipe 303 is arranged inside the rotating frame 301. When the biomass particles are burned in the boiler, the air in the environment is blown into the combustion furnace 101 by the air intake fan 111, and during the combustion, a certain amount of oxygen is injected into the combustion furnace 101 through the air intake pipe 303, so that the biomass particles can be fully burned, thereby reducing the waste of biomass particles and preventing the increase of use cost. Moreover, no large amount of harmful gases will be generated during full combustion, thereby reducing the threat to the environment and human health.

[0035] The exhaust mechanism 2 includes a top plate 201 slidably connected to the air inlet pipe 303, the top outer wall of the top plate 201 is fixedly connected to the air outlet pipe 202, and the inner wall of the top plate 201 is fixedly connected to the first inclined plate 208. The first inclined plate 208 is annular and has a certain inclination angle, which is beneficial to the gas inside the combustion furnace 101, so that it can be better discharged through the air outlet pipe 202.

[0036] The outer wall of the top plate 201 is fixedly connected to a connecting frame 209, and a hydraulic rod 207 is arranged at one end of the connecting frame 209 away from the top plate 201. The outer surface of the hydraulic rod 207 is fixedly sleeved with a first support block 203, and the end of the first support block 203 away from the hydraulic rod 207 is fixedly connected to the combustion furnace 101, and the output end of the hydraulic rod 207 is fixedly connected to the connecting frame 209, and the outer wall of the end of the hydraulic rod 207 away from the connecting frame 209 is fixedly connected to a second support block 206, and the second support block 206 is away from the hydraulic rod 2 One end of 07 is fixedly connected to the combustion furnace 101, and the closing state between the top plate 201 and the combustion furnace 101 is controlled by means of a hydraulic rod 207. When the top plate 201 is separated from the combustion furnace 101, it can be used for feeding. When the combustion furnace 101 generates exhaust gas during the combustion process, the exhaust gas is blown upward by the air intake fan 111. The exhaust gas enters the exhaust pipe 202 through the first inclined plate 208 and is then discharged, preventing the exhaust gas from staying inside the combustion furnace 101 for a long time, thereby avoiding a reduction in the oxygen content inside the combustion furnace 101.

[0037] The outer wall of one end of the first support block 203 away from the hydraulic rod 207 is fixedly connected to a second fixed shaft 204. The second fixed shaft 204 can make the top plate 201 more stable during movement. The top of the first support block 203 is fixedly connected to a second spring 205. The second spring 205 is away from the first support block 203 and is fixedly connected to the connecting frame 209.

[0038] A first connecting pipe 107 is fixedly connected to the outer wall of the combustion furnace 101, and the end of the first connecting pipe 107 away from the combustion furnace 101 is set in a trumpet shape, which is conducive to the intake fan 111 to better inject outside air into the combustion furnace 101. The inner wall of the first connecting pipe 107 on the side away from the combustion furnace 101 is fixedly connected to the second fixing frame 108, and the inner wall of the first connecting pipe 107 is fixedly connected to the filter screen 109, and the outer wall of the second fixing frame 108 is fixedly connected to the second motor 110, and the output end of the second motor 110 runs through the second fixing frame 108 and is fixedly connected to the intake fan 111. The outer wall of the first connecting pipe 107 is fixedly connected to the support rod 112, and the support rod 112 supports the end of the first connecting pipe 107 away from the combustion furnace 101, and the end of the support rod 112 away from the first connecting pipe 107 is fixedly connected to the first fixing frame 104.

[0039] The working principle of this embodiment is as follows: when the biomass particles are being burned, the hydraulic rod 207 is used to control the closing state between the top plate 201 and the combustion furnace 101. When the top plate 201 is separated from the combustion furnace 101, it can be used for feeding. When the combustion furnace 101 generates exhaust gas during the combustion process, the exhaust gas is pushed upward by the air intake fan 111. The exhaust gas enters the exhaust pipe 202 through the first inclined plate 208 and is then discharged, thereby preventing the exhaust gas from staying in the combustion furnace 101 for a long time, thereby preventing the oxygen content in the combustion furnace 101 from decreasing. The second motor 110 injects external air into the combustion furnace 101 through the air intake fan 111, thereby accelerating the air flow inside the combustion furnace 101, which is beneficial to the full combustion of the biomass particles.

[0040] Example 2: Please refer to Figure 5-Figure 6 On the basis of Embodiment 1 and Embodiment 2, the present invention provides a technical solution: a second connecting pipe 304 is fixedly connected to the outer wall of one end of the air inlet pipe 303 close to the rotating frame 301, an end of the second connecting pipe 304 away from the air inlet pipe 303 is fixedly connected to the rotating frame 301, and a third connecting pipe 307 is fixedly connected to the inner wall of the rotating frame 301.

[0041] The outer wall of the air inlet pipe 303 is fixedly sleeved with a baffle 305, and the baffle 305 is used to prevent the second connecting pipe 304 from being affected during the feeding process of the biomass particles. The air inlet pipe 303 injects oxygen into the interior of the combustion furnace 101 through the second connecting pipe 304, thereby achieving the effect of oxygen supplementation. A first through hole 306 is opened at the bottom of the baffle 305, and an auxiliary roller 308 is movably sleeved on the outer surface of the third connecting pipe 307. The outer surface of the auxiliary roller 308 is fixedly connected with a stirring blade 309. The first motor 102 rotates the rotating frame 301 along the inner wall of the combustion furnace 101 by means of the driving wheel 103. The air inlet pipe 303 injects oxygen into the combustion furnace 101 through the second connecting pipe 304 and the third connecting pipe 307, and uses the auxiliary roller 308 and the stirring blade 309 to stir the biomass particles, thereby increasing the contact area between the biomass particles and oxygen and improving the probability of sufficient combustion of the biomass particles.

[0042] The working principle of this embodiment is as follows: when the biomass particles inside the combustion furnace 101 are in the process of combustion, the first motor 102 relies on the driving wheel 103 to cause the rotating frame 301 to rotate along the inner wall of the combustion furnace 101, and the air intake pipe 303 injects oxygen into the combustion furnace 101 through the second connecting pipe 304 and the third connecting pipe 307, and stirs the biomass particles through the auxiliary roller 308 and the stirring blade 309, thereby increasing the contact area between the biomass particles and oxygen and improving the probability of sufficient combustion of the biomass particles.

[0043] Example 3: Please refer to Figure 7-Figure 8On the basis of the first embodiment, the present invention provides a technical solution: the combustion-supporting mechanism 4 includes a sliding frame 401 slidably connected to the first fixed shaft 114, the outer surface of the first fixed shaft 114 is slidably sleeved with a first spring 115, the first spring 115 is fixedly connected to the sliding frame 401 at one end close to the connecting rod 113, and the bottom outer wall of the sliding frame 401 is fixedly connected with a second inclined plate 406, the second inclined plate 406 is inclined toward one side of the first connecting pipe 107, and the length gradually becomes longer, which is conducive to injecting the air of the intake fan 111 from the second through hole 404 into the interior of the combustion furnace 101.

[0044] A second through hole 404 is provided on the inner wall at the bottom of the sliding frame 401, a flame nozzle 405 is fixedly connected to the inner wall of the sliding frame 401, a fixing ring 402 is fixedly sleeved on the outer surface of the sliding frame 401, and a second protrusion 403 is fixedly connected to the end of the fixing ring 402 away from the sliding frame 401, and the outside air is injected into the combustion furnace 101 from the first connecting pipe 107 through the second inclined plate 406. When the rotating frame 301 rotates, the first protrusion 310 will contact the second protrusion 403, thereby causing the sliding frame 401 to vibrate, thereby preventing the residue produced after the combustion of the biomass particles from clogging the second through hole 404, so as to prevent the air flow efficiency inside the combustion furnace 101 from being reduced, thereby increasing the possibility of sufficient combustion of the biomass particles.

[0045] The working principle of this embodiment is as follows: external air is injected into the combustion furnace 101 from the first connecting pipe 107 through the second inclined plate 406. When the rotating frame 301 rotates, the first protrusion 310 contacts the second protrusion 403, thereby causing the sliding frame 401 to vibrate, thereby preventing the residues produced after the combustion of biomass particles from clogging the second through hole 404, avoiding the decrease in the air flow efficiency inside the combustion furnace 101, and thereby increasing the possibility of sufficient combustion of the biomass particles. The residues produced when the biomass particles are burned fall through the second through hole 404 to the sewage outlet 105 and are then discharged.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A biomass pellet combustion boiler system with an oxygen supplementation function, comprising a support mechanism (1), the support mechanism (1) comprising a combustion furnace (101), the outer wall of the combustion furnace (101) being fixedly connected to a first motor (102), the output end of the first motor (102) passing through the combustion furnace (101) and being fixedly connected to a driving wheel (103), an exhaust mechanism (2) being arranged on the top of the combustion furnace (101), the bottom outer wall of the combustion furnace (101) being fixedly connected to a first fixing frame (104), the inner wall of the first fixing frame (104) being fixedly connected to a sewage outlet (105), the outer wall of the first fixing frame (104) on a side away from the combustion furnace (101) being fixedly connected to a supporting foot (106), the inner wall of the combustion furnace (101) being fixedly connected to a connecting rod (113), the outer wall of one end of the connecting rod (113) away from the combustion furnace (101) being fixedly connected to a first fixed shaft (114), characterized in that: Also included are: The auxiliary mechanism (3) comprises a rotating frame (301) slidably connected to the inner wall of the combustion furnace (101); a groove (302) is provided on the top outer surface of the rotating frame (301); the inner wall of the groove (302) is rotatably connected to the driving wheel (103); a first protrusion (310) is fixedly connected to the bottom outer wall of the rotating frame (301); a combustion-supporting mechanism (4) is provided at the bottom of the rotating frame (301); an air intake pipe (303) is provided inside the rotating frame (301); a second connecting pipe (304) is fixedly connected to the outer wall of one end of the air intake pipe (303) close to the rotating frame (301); an end of the second connecting pipe (304) away from the air intake pipe (303) is fixedly connected to the rotating frame (301); and a third connecting pipe (307) is fixedly connected to the inner wall of the rotating frame (301); The outer wall of the air inlet pipe (303) is fixedly sleeved with a baffle (305), the bottom of the baffle (305) is provided with a first through hole (306), the outer surface of the third connecting pipe (307) is movably sleeved with an auxiliary roller (308), and the outer surface of the auxiliary roller (308) is fixedly connected with a stirring blade (309); The combustion-supporting mechanism (4) comprises a sliding frame (401) slidably connected to a first fixed shaft (114); a first spring (115) is slidably sleeved on an outer surface of the first fixed shaft (114); an end of the first spring (115) close to the connecting rod (113) is fixedly connected to the sliding frame (401); and a second inclined plate (406) is fixedly connected to the bottom outer wall of the sliding frame (401); A second through hole (404) is provided on the inner wall of the bottom of the sliding frame (401); a flame-spraying port (405) is fixedly connected to the inner wall of the sliding frame (401); a fixing ring (402) is fixedly sleeved on the outer surface of the sliding frame (401); and a second protrusion (403) is fixedly connected to one end of the fixing ring (402) away from the sliding frame (401).

2. The biomass pellet combustion boiler system with oxygen supplementation function according to claim 1 is characterized in that: The outer wall of the combustion furnace (101) is fixedly connected to a first connecting pipe (107); the inner wall of the first connecting pipe (107) on a side away from the combustion furnace (101) is fixedly connected to a second fixing frame (108); the inner wall of the first connecting pipe (107) is fixedly connected to a filter screen (109); the outer wall of the second fixing frame (108) is fixedly connected to a second motor (110); the output end of the second motor (110) passes through the second fixing frame (108) and is fixedly connected to an intake fan (111); the outer wall of the first connecting pipe (107) is fixedly connected to a support rod (112); the end of the support rod (112) away from the first connecting pipe (107) is fixedly connected to the first fixing frame (104).

3. The biomass pellet combustion boiler system with oxygen supplementation function according to claim 1 is characterized in that: The exhaust mechanism (2) comprises a top plate (201) slidably connected to an air inlet pipe (303), an air outlet pipe (202) being fixedly connected to the top outer wall of the top plate (201), and a first inclined plate (208) being fixedly connected to the inner wall of the top plate (201).

4. The biomass pellet combustion boiler system with oxygen supplementation function according to claim 3 is characterized in that: The outer wall of the top plate (201) is fixedly connected to a connecting frame (209); a hydraulic rod (207) is arranged at one end of the connecting frame (209) away from the top plate (201); a first support block (203) is fixedly sleeved on the outer surface of the hydraulic rod (207); an end of the first support block (203) away from the hydraulic rod (207) is fixedly connected to the combustion furnace (101); an output end of the hydraulic rod (207) is fixedly connected to the connecting frame (209); an outer wall of one end of the hydraulic rod (207) away from the connecting frame (209) is fixedly connected to a second support block (206); and an end of the second support block (206) away from the hydraulic rod (207) is fixedly connected to the combustion furnace (101).

5. The biomass pellet combustion boiler system with oxygen supplementation function according to claim 4 is characterized in that: A second fixed shaft (204) is fixedly connected to an outer wall of one end of the first support block (203) away from the hydraulic rod (207), a second spring (205) is fixedly connected to the top of the first support block (203), and the second spring (205) is away from the first support block (203) and fixedly connected to the connecting frame (209).

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