Biomass waste fuel heating furnace

Abstract

The invention relates to the technical field of biomass waste combustion, and specifically to a biomass waste fuel heating furnace, comprising a combustion chamber, a heat exchange chamber and a flue gas purification chamber, and also comprising a grille, an inclined plate, a feeding mechanism, a toggle mechanism, an oxygen supply mechanism and two side plates. The feeding mechanism comprises a lower hopper, a conveying pipe and a conveying assembly. The toggle mechanism comprises a first transmission assembly, a telescopic assembly, a plurality of avoidance grooves, a plurality of breaking rods, a plurality of swing assemblies and a plurality of through grooves. The oxygen supply mechanism comprises an air supply shell, a rotating rod, a fan blade, a conveying assembly, a driving assembly and a second transmission assembly. When the feeding assembly conveys the biomass waste, the toggle mechanism can be driven to work, and the biomass waste accumulated on the grille can be toggled and broken up by the toggle mechanism. At the same time, the oxygen supply mechanism can transport oxygen to the interior of the combustion chamber, so that the oxygen can be in uniform contact with the biomass waste that is toggled, which is conducive to the full combustion of the biomass waste.

Description

Technical Field

[0001] The invention relates to the technical field of biomass waste combustion, in particular to a biomass waste fuel heating furnace. Background Art

[0002] Biomass waste refers to all organic matter formed by photosynthesis of green plants, including microorganisms, plants and animals, as well as their excrement, garbage and organic wastewater and other organic matter derived from organisms. According to different sources, biomass waste can be divided into urban biomass waste, crop waste, and livestock manure. Biomass waste fuel refers to using biomass waste as fuel and burning biomass waste in a heating furnace. On the one hand, it can achieve harmless treatment, and on the other hand, it can recover the heat generated by the incineration of biomass waste, thereby achieving the purpose of waste resource utilization.

[0003] The biomass waste in the existing biomass waste fuel heating furnace will pile up when feeding, so during the combustion process, the biomass waste in the middle position has a smaller contact area with oxygen, which is not conducive to the full combustion of the biomass waste. To address this problem, a biomass waste fuel heating furnace is now provided. Summary of the invention

[0004] The object of the present invention is to provide a biomass waste fuel heating furnace to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A biomass waste fuel heating furnace comprises a combustion chamber, a heat exchange chamber and a flue gas purification chamber, wherein the heat exchange chamber is installed at the top of the combustion chamber, and the flue gas purification chamber is located above the heat exchange chamber. The furnace further comprises a grille, an inclined plate, a feeding mechanism, a toggle mechanism, an oxygen supply mechanism and two side plates, wherein one end of the grille is fixedly installed inside the combustion chamber, the inclined plate is fixed to the other end of the grille, and the other end of the inclined plate is fixed to the combustion chamber, and the two side plates are symmetrically installed on both sides of the inclined plate and the grille;

[0007] The feeding mechanism includes a lower hopper, a conveying pipe and a conveying assembly. The lower hopper is fixed at one end of the combustion chamber. The conveying pipe is installed below the lower hopper. Both ends of the conveying pipe are connected to the combustion chamber and the lower hopper respectively. The conveying assembly is installed on the conveying pipe.

[0008] The toggle mechanism includes a first transmission assembly, a telescopic assembly, a plurality of avoidance grooves, a plurality of breaking rods, a plurality of swing assemblies and a plurality of through grooves, wherein the plurality of avoidance grooves are respectively arranged on both sides of the grille, and two adjacent avoidance grooves are staggered with each other, each through groove is located on one side of an avoidance groove and is arranged on the side plate, each through groove is communicated with an avoidance groove, each breaking rod passes through a through groove and is located inside an avoidance groove, the breaking rod is hinged inside the through groove through a first rotating shaft, each swing assembly is located below one end of a breaking rod away from the avoidance groove, the telescopic assembly is installed between the combustion chamber and the plurality of swing assemblies, and the first transmission assembly is installed between the telescopic assembly and the conveying assembly;

[0009] The oxygen supply mechanism includes an air supply housing, a rotating rod, fan blades, a conveying assembly, a driving assembly and a second transmission assembly. The air supply housing is installed at one end of the combustion chamber away from the lower hopper. The rotating rod is rotatably set on the air supply housing. The fan blades are fixedly installed on the surface of the rotating rod. The conveying assembly is installed between the air supply housing and the combustion chamber. The driving assembly is installed on one side of the air supply housing to drive the rotating rod to rotate. The second transmission assembly is located between the driving assembly and the telescopic assembly.

[0010] As a further solution of the present invention: the conveying assembly includes a conveying shaft, a spiral blade, a motor and a first L-shaped frame;

[0011] The first L-shaped frame is located below the conveying pipe and fixed on the combustion chamber. The conveying shaft is rotatably arranged inside the conveying pipe. One end of the conveying shaft extends out of the conveying pipe and rotates on the first L-shaped frame. The other end of the conveying shaft extends to the inside of the combustion chamber. The spiral blade is fixedly installed on the conveying shaft. The motor is fixed on the first L-shaped frame. The output end of the motor is fixedly connected to the conveying shaft.

[0012] As a further solution of the present invention: the first transmission assembly includes a second rotating shaft, a first driving wheel, a first driven wheel, a first transmission belt, a first bevel gear, a second bevel gear and two second L-shaped frames;

[0013] A first mounting plate fixed to the combustion chamber is provided on one side of the delivery pipe, the second bevel gear is rotatably arranged on one side of the first mounting plate, the first bevel gear is fixedly mounted on the surface of the delivery shaft, the second bevel gear and the first bevel gear are meshed with each other, two second L-shaped frames are symmetrically fixed to the ends of the combustion chamber, the second rotating shaft is rotatably arranged on the two second L-shaped frames through bearings, the first driven wheel is fixed on the second rotating shaft, the first driving wheel is located on the side of the first mounting plate away from the second bevel gear and is coaxially arranged with the second bevel gear, and the first transmission belt is sleeved on the first driven wheel and the first driving wheel.

[0014] As a further solution of the present invention: the telescopic assembly includes a moving plate, two rotating disks, two hinged rods, two moving rods and a plurality of limit seats;

[0015] Two moving rods are symmetrically slidably arranged on both sides of the combustion chamber, the moving plate is fixed on one end of the two moving rods close to the lower hopper, the two turntables are symmetrically fixed at both ends of the second rotating shaft, one end of each hinged rod is hinged on the moving plate, and the other end of each hinged rod is hinged to one side edge of a turntable, and multiple limit seats are symmetrically installed on both sides of the inner cavity of the combustion chamber, and each moving rod is slidably arranged on multiple limit seats located on the same side.

[0016] As a further solution of the present invention: each swing assembly includes a strip groove, an insertion rod, a U-shaped seat, a first wedge block, a second wedge block, two limit frames and two vertical rods;

[0017] The strip groove is opened at the end of the breaking rod away from the avoidance groove, the insertion rod is inserted into the inside of the strip groove, the U-shaped seat is fixedly installed at both ends of the insertion rod and is located below the breaking rod, and the two limit frames are symmetrically fixed on the inner wall of the combustion chamber, each vertical rod is slidably set on a limit frame, the top end of each vertical rod is fixedly connected to the U-shaped seat, the bottom end of each vertical rod is fixedly connected to the first wedge block, the second wedge block is fixedly installed on one side of the moving rod, and the first wedge block is slidably set on the top end of the second wedge block.

[0018] As a further solution of the present invention: the second transmission assembly includes a rack, a gear, a second driving wheel, a second driven wheel, a second transmission belt, a third mounting plate and a second mounting plate;

[0019] One end of one of the moving rods away from the moving plate extends out of the combustion chamber and is fixedly connected to one end of the rack. A guide rail is fixed on one side of the combustion chamber and below the rack. The rack is slidably arranged inside the guide rail. The second mounting plate is fixedly mounted on the combustion chamber. The gear is located above the rack and is rotatably arranged on one side of the second mounting plate. The gear and the rack are meshed with each other. The third mounting plate is fixed on the combustion chamber. The second driven wheel is rotatably arranged on the third mounting plate. The second driving wheel is located on a side of the second mounting plate away from the gear and is coaxially arranged with the gear. The second transmission belt is sleeved on the second driving wheel and the second driven wheel.

[0020] As a further solution of the present invention: the driving assembly includes an inner ratchet, a disc, a mounting groove, a pawl, a spring, a third bevel gear and a fourth bevel gear;

[0021] The inner ratchet is located on a side of the third mounting plate away from the second driven wheel and is coaxially arranged with the second driven wheel. The disc is located in the middle of the inner ratchet, and the mounting groove is opened on one side of the disc. One end of the pawl is hinged to the inside of the mounting groove, and the other end of the pawl is clamped with the inner side of the inner ratchet. The spring is located inside the mounting groove, and the two ends of the spring are respectively connected with the pawl and the mounting groove. The third bevel gear is fixedly installed on the rotating rod, and a connecting shaft is rotatably arranged on one side of the air supply housing. The fourth bevel gear is fixed to one end of the connecting shaft and meshes with the third bevel gear, and the other end of the connecting shaft is fixedly connected to the disc.

[0022] As a further solution of the present invention: the conveying assembly includes two main pipes, four branch pipes and multiple air outlets, the two main pipes are symmetrically installed on both sides of one end of the air supply shell close to the combustion chamber, every two branch pipes are installed on the end of a main pipe away from the air supply shell through a three-way valve, every two branch pipes are installed on both sides of the combustion chamber, and multiple air outlets are respectively installed on the four branch pipes, and each air outlet extends into the interior of the combustion chamber.

[0023] As a further solution of the present invention: a smoke exhaust chamber is fixed on the top of the heat exchange chamber, a smoke purification chamber is installed on the top of the smoke exhaust chamber, the combustion chamber, the heat exchange chamber, the smoke exhaust chamber and the smoke purification chamber are connected in sequence, a heat exchange tube is installed inside the heat exchange chamber, both ends of the heat exchange tube extend out of the heat exchange chamber respectively, and an impeller is rotatably arranged inside the smoke exhaust chamber.

[0024] As a further solution of the present invention: a smoke exhaust pipe and an air inlet pipe are fixed to the top of the flue gas purification chamber, a heating chamber is opened in the middle of the side wall of the lower hopper, the other end of the air inlet pipe is connected to the interior of the heating chamber, and an air outlet pipe is installed on one side of the lower hopper, one end of the air outlet pipe is connected to the heating chamber.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. A biomass waste fuel heating furnace of the present invention is provided with a toggle mechanism and an oxygen supply mechanism. When the loading component transports the biomass waste, the toggle mechanism can be driven to work. The biomass waste accumulated on the grille can be toggled and dispersed by the toggle mechanism. At the same time, the oxygen supply mechanism can transport oxygen to the interior of the combustion chamber, so that the oxygen can be evenly contacted with the biomass waste that is toggled up. This solves the problem in the prior art that during the combustion of the biomass waste, the biomass waste in the middle position has a small contact area with oxygen, which is conducive to the full combustion of the biomass waste.

[0027] 2. A biomass waste fuel heating furnace of the present invention, by setting a first transmission component, can form a linkage effect between the feeding mechanism and the shifting mechanism, that is, while the biomass waste is being transported and fed, the biomass waste transported to the grid can be shifted and broken up, so that the biomass waste can be dispersed, avoiding the accumulation of biomass waste during transportation.

[0028] 3. A biomass waste fuel heating furnace of the present invention is provided with a second transmission assembly. While the toggle mechanism toggle the biomass waste on the grille, the oxygen supply mechanism can transport external air to the interior of the combustion chamber, so that the oxygen in the air can fully and evenly contact the biomass waste that is toggled, thereby playing a combustion-supporting effect and being beneficial to the full combustion of the biomass waste.

[0029] 4. A biomass waste fuel heating furnace of the present invention, through the first transmission assembly and the second transmission assembly, enables the feeding mechanism, the shifting mechanism and the oxygen supply mechanism to form a sequential linkage, that is, the synchronous operation of the three mechanisms can be achieved by using one motor, which is beneficial to reduce the number of driving sources used in the heating furnace, reduce power consumption, and thus help reduce costs.

[0030] 5. A biomass waste fuel heating furnace of the present invention is provided with a heat exchange chamber and a heat exchange tube installed inside the heat exchange chamber. The high-temperature flue gas generated by the combustion of biomass waste inside the combustion chamber can enter the interior of the heat exchange chamber. The high-temperature flue gas can be used to heat the water flowing in the heat exchange tube to play a role in heating. The heat generated by the incineration of biomass waste can be recovered, and the purpose of waste resource utilization can be achieved.

[0031] 6. The biomass waste fuel heating furnace of the present invention can purify the flue gas generated by incineration by setting up a flue gas purification chamber, thereby realizing harmless treatment of biomass waste. At the same time, the air inlet pipe is used to allow part of the purified gas to enter the interior of the heating chamber, which is beneficial for other waste heat to heat the biomass waste in the lower hopper, thereby achieving a drying effect and preventing the moisture of the biomass waste from affecting its full combustion.

[0032] 7. A biomass waste fuel heating furnace of the present invention has a rotatable impeller arranged inside the smoke exhaust chamber. When the smoke moves into the smoke exhaust chamber, it can drive the impeller to rotate. When the impeller rotates, the exhaust speed of the smoke can be accelerated. At the same time, the rotation speed of the impeller can be adjusted according to the amount of smoke to meet the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The structure of the present invention is schematically shown Figure 1 .

[0034] Figure 2 For the present invention Figure 1 Schematic diagram of the enlarged structure of part B.

[0035] Figure 3 The structure of the present invention is schematically shown Figure 2 .

[0036] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure of part A.

[0037] Figure 5 It is a schematic cross-sectional structural diagram of the combustion chamber in the present invention.

[0038] Figure 6 It is a structural schematic diagram of the grid in the present invention.

[0039] Figure 7For the present invention Figure 6 Schematic diagram of the enlarged structure of part C.

[0040] Figure 8 It is a structural schematic diagram of the air supply shell in the present invention.

[0041] Fig. 9 For the present invention Figure 8 Schematic diagram of the enlarged structure of part D.

[0042] Fig.10 It is a schematic diagram of the structure of the disc in the present invention.

[0043] Fig.11 It is a schematic diagram of the cross-sectional structure of the delivery pipe in the present invention.

[0044] Fig.12 It is a cross-sectional view of the present invention.

[0045] Among them: 11, combustion chamber; 12, heat exchange chamber; 13, flue gas purification chamber; 14, smoke exhaust chamber; 15, lower hopper; 16, conveying pipe; 17, first L-shaped frame; 18, motor; 19, conveying shaft; 20, spiral blade; 21, inclined plate; 22, grille; 23, avoidance groove; 24, breaking rod; 25, side plate; 26, through groove; 27, first rotating shaft; 28, strip groove; 29, plug rod; 30, U-shaped seat; 31, limit frame; 32, first wedge block; 33, slider; 34, second wedge block; 35, slide; 36, moving rod; 37, limit seat; 38, moving plate; 39, second L-shaped frame; 40, second rotating shaft; 41, turntable; 42, hinged rod; 43, first driving wheel; 44, first Driven wheel; 45, first transmission belt; 46, first bevel gear; 47, second bevel gear; 48, first mounting plate; 49, rack; 50, gear; 51, second mounting plate; 52, second driving wheel; 53, second driven wheel; 54, second transmission belt; 55, third mounting plate; 56, inner ratchet; 57, disc; 58, mounting groove; 59, pawl; 60, spring; 61, air supply housing; 62, rotating rod; 64, third bevel gear; 65, fourth bevel gear; 66, fan blade; 67, main pipe; 68, shunt pipe; 69, air outlet; 70, guide rail; 71, heating chamber; 72, air inlet pipe; 73, air outlet pipe; 74, smoke exhaust pipe; 75, heat exchange pipe; 76, impeller; 77, vertical rod; 78, connecting shaft. DETAILED DESCRIPTION

[0046] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0047] The present invention provides the following preferred embodiments:

[0048] Embodiment 1, as Figure 1-Figure 12 As shown, a biomass waste fuel heating furnace includes a combustion chamber 11, a heat exchange chamber 12 and a flue gas purification chamber 13, the heat exchange chamber 12 is installed at the top of the combustion chamber 11, the flue gas purification chamber 13 is located above the heat exchange chamber 12, and also includes a grille 22, an inclined plate 21, a feeding mechanism, a toggle mechanism, an oxygen supply mechanism and two side plates 25, one end of the grille 22 is fixedly installed inside the combustion chamber 11, the inclined plate 21 is fixed to the other end of the grille 22, the other end of the inclined plate 21 is fixed on the combustion chamber 11, and the two side plates 25 are symmetrically installed on the combustion chamber 11. The side plates 25 on both sides of the inclined plate 21 and the grille 22 play the role of limiting and shielding. When in use, the biomass waste is transported to the grille 22 for combustion, and the high-temperature flue gas generated during the combustion process can enter the heat exchange chamber 12 for heat exchange, which can achieve harmless treatment on the one hand, and recover the heat generated by the incineration of biomass waste on the other hand, so as to achieve the purpose of waste resource utilization. The flue gas after heat exchange can enter the flue gas purification chamber 13 for purification, and then the purified gas is discharged from the gas outlet of the flue gas purification chamber 13;

[0049] The feeding mechanism includes a lower hopper 15, a conveying pipe 16 and a conveying assembly. The lower hopper 15 is fixed at one end of the combustion chamber 11. The conveying pipe 16 is installed below the lower hopper 15. The two ends of the conveying pipe 16 are respectively connected to the combustion chamber 11 and the lower hopper 15, that is, the combustion chamber 11, the conveying pipe 16 and the lower hopper 15 can be connected in sequence, which is convenient for the transportation and feeding of biomass waste. The conveying assembly is installed on the conveying pipe 16. The conveying assembly can transport the biomass waste stored in the lower hopper 15 to the inside of the combustion chamber 11 through the conveying pipe 16, and then the inclined inclined plate 21 can be used to guide the biomass waste so that the biomass waste can fall on the grid 22 for combustion;

[0050] The toggle mechanism includes a first transmission assembly, a telescopic assembly, a plurality of avoidance grooves 23, a plurality of breaking rods 24, a plurality of swing assemblies and a plurality of through grooves 26. The plurality of avoidance grooves 23 are respectively arranged on both sides of the grille 22, and two adjacent avoidance grooves 23 are staggered with each other. Each through groove 26 is located on one side of an avoidance groove 23 and is arranged on the side plate 25. Each through groove 26 is communicated with an avoidance groove 23. Each breaking rod 24 passes through a through groove 26 and is located inside an avoidance groove 23. The breaking rod 24 is hinged inside the through groove 26 through a first rotating shaft 27. Each swing assembly is located below one end of a breaking rod 24 away from the avoidance groove 23. The telescopic assembly is installed between the combustion chamber 11 and the plurality of swing assemblies. The first transmission assembly is installed between the telescopic assembly and the conveying assembly.

[0051] When in use, in the initial state, the upper surface of the breaking rod 24 is flush with the upper surface of the grille 22. While the conveying assembly is conveying the biomass waste, the first transmission assembly can drive the telescopic assembly to work. The telescopic assembly can realize the synchronous work of multiple swing assemblies when working, and then drive the multiple breaking rods 24 to swing around the axis of the first rotating shaft 27, so that the multiple breaking rods 24 can move the biomass waste while conveying the biomass waste, so as to break up the biomass waste, so that the biomass waste can fall evenly on the grille 22 to avoid accumulation;

[0052] The oxygen supply mechanism includes an air supply housing 61, a rotating rod 62, a fan blade 66, a conveying assembly, a driving assembly and a second transmission assembly. The air supply housing 61 is installed at one end of the combustion chamber 11 away from the lower hopper 15, the rotating rod 62 is rotatably arranged on the air supply housing 61, and the fan blade 66 is fixedly installed on the surface of the rotating rod 62. It should be noted here that a dustproof net is provided on the side of the air supply housing 61 away from the combustion chamber 11, one end of the rotating rod 62 is rotatably arranged in the middle of the end of the air supply housing 61 away from the combustion chamber 11, the conveying assembly is installed between the air supply housing 61 and the combustion chamber 11, the driving assembly is installed on one side of the air supply housing 61 to drive the rotating rod 62 to rotate, and the second transmission assembly is located between the driving assembly and the telescopic assembly;

[0053] When the telescopic assembly is working, the second transmission assembly can drive the driving assembly to work, so that the rotating rod 62 can drive the fan blade 66 to rotate. At this time, the external air can be filtered by the dustproof net and transported to the inside of the conveying assembly. The conveying assembly can be used to transport the gas to the inside of the combustion chamber 11, which has the effect of adding oxygen. That is, when the biomass waste is moved, the conveying assembly can realize the delivery of oxygen, so that the oxygen in the air can fully and evenly contact the biomass waste that is moved, which has the effect of supporting combustion and is conducive to the full combustion of the biomass waste.

[0054] Through the first transmission assembly and the second transmission assembly, the feeding mechanism, the shifting mechanism and the oxygen supply mechanism can be linked in sequence, that is, one motor 18 can be used to achieve synchronous operation of the three mechanisms, which is beneficial to reduce the number of driving sources used in the heating furnace, reduce power consumption, and thus help reduce costs.

[0055] like Figure 1-Figure 12 As shown, the conveying assembly includes a conveying shaft 19, a spiral blade 20, a motor 18 and a first L-shaped frame 17;

[0056] The first L-shaped frame 17 is located below the delivery pipe 16 and fixed on the combustion chamber 11. The delivery shaft 19 is rotatably arranged inside the delivery pipe 16. One end of the delivery shaft 19 extends out of the delivery pipe 16 and rotates on the first L-shaped frame 17. The other end of the delivery shaft 19 extends into the combustion chamber 11. The spiral blade 20 is fixedly mounted on the delivery shaft 19. The motor 18 is fixed on the first L-shaped frame 17. The output end of the motor 18 is fixedly connected to the delivery shaft 19.

[0057] When in use, first put the biomass waste into the lower hopper 15, start the motor 18, the motor 18 can drive the conveying shaft 19 to rotate, and the conveying shaft 19 can drive the spiral blade 20 installed on the conveying shaft 19 to rotate when rotating. At this time, the biomass waste in the lower hopper 15 falls into the conveying pipe 16 under the action of gravity. With the rotation of the spiral blade 20, the biomass waste can be transported to the inclined plate 21. Since the inclined plate 21 is inclined, the biomass waste is transported to the grid 22 under the guidance of the inclined plate 21.

[0058] like Figure 1-Figure 12 As shown, the first transmission assembly includes a second rotating shaft 40, a first driving wheel 43, a first driven wheel 44, a first transmission belt 45, a first bevel gear 46, a second bevel gear 47 and two second L-shaped frames 39;

[0059] A first mounting plate 48 fixed to the combustion chamber 11 is provided on one side of the delivery pipe 16, a second bevel gear 47 is rotatably arranged on one side of the first mounting plate 48, a first bevel gear 46 is fixedly mounted on the surface of the delivery shaft 19, the second bevel gear 47 and the first bevel gear 46 are meshed with each other, two second L-shaped frames 39 are symmetrically fixed to the ends of the combustion chamber 11, a second rotating shaft 40 is rotatably arranged on the two second L-shaped frames 39 through bearings, a first driven wheel 44 is fixed on the second rotating shaft 40, a first driving wheel 43 is located on a side of the first mounting plate 48 away from the second bevel gear 47 and is coaxially arranged with the second bevel gear 47, that is, when the second bevel gear 47 rotates, it can drive the first driving wheel 43 to rotate synchronously, and a first transmission belt 45 is sleeved on the first driven wheel 44 and the first driving wheel 43;

[0060] When the conveying shaft 19 rotates, it can drive the first bevel gear 46 to rotate. When the first bevel gear 46 rotates, it can drive the second bevel gear 47 meshing with the first bevel gear 46 to rotate. When the second bevel gear 47 rotates, it can drive the first driving wheel 43 coaxially arranged therewith to rotate. Under the action of the first transmission belt 45, it can drive the first driven wheel 44 to rotate, so that the second rotating shaft 40 can rotate on the turntable 41.

[0061] like Figure 1-Figure 12 As shown, the telescopic assembly includes a moving plate 38, two rotating disks 41, two hinged rods 42, two moving rods 36 and a plurality of limit seats 37;

[0062] Two moving rods 36 are symmetrically slidably arranged on both sides of the combustion chamber 11, a moving plate 38 is fixed to one end of the two moving rods 36 close to the lower hopper 15, two turntables 41 are symmetrically fixed to both ends of the second rotating shaft 40, one end of each hinged rod 42 is hinged to the moving plate 38, and the other end of each hinged rod 42 is hinged to one side edge of a turntable 41, and a plurality of limit seats 37 are symmetrically installed on both sides of the inner cavity of the combustion chamber 11, and each moving rod 36 is slidably arranged on a plurality of limit seats 37 located on the same side, and the limit seats 37 are used to support and guide the moving rod 36 so that the moving rod 36 can slide smoothly;

[0063] When the second rotating shaft 40 rotates, it can drive the turntables 41 at both ends of the second rotating shaft 40 to rotate. When the turntable 41 rotates, it can drive the two moving rods 36 to perform telescopic reciprocating motion inside the combustion chamber 11 through the moving plate 38 under the action of the hinge rod 42.

[0064] like Figure 1-Figure 12 As shown, each swing assembly includes a strip groove 28, an insertion rod 29, a U-shaped seat 30, a first wedge block 32, a second wedge block 34, two limit frames 31 and two vertical rods 77;

[0065] The strip groove 28 is opened at one end of the scattering rod 24 away from the avoidance groove 23, and the insertion rod 29 is inserted into the inside of the strip groove 28. The insertion rod 29 can slide inside the U-shaped seat 30. The U-shaped seat 30 is fixedly installed at both ends of the insertion rod 29 and is located below the scattering rod 24. Two limit frames 31 are symmetrically fixed to the inner wall of the combustion chamber 11. Each vertical rod 77 is slidably set on a limit frame 31. The limit frame 31 can guide the vertical rod 77. The top of each vertical rod 77 is aligned with the U-shaped seat. 30 is fixedly connected, the bottom end of each vertical rod 77 is fixedly connected to the first wedge block 32, the second wedge block 34 is fixedly installed on one side of the moving rod 36, the first wedge block 32 is slidably arranged on the top of the second wedge block 34, specifically, a slider 33 is provided on the top of the second wedge block 34, a slide groove 35 is fixedly provided on the bottom end of the first wedge block 32, and the slide groove 35 is slidably arranged inside the slider 33. It should be noted that the slider 33 is a dovetail groove, and the shape of the slide groove 35 matches the slider 33;

[0066] When the moving rod 36 moves in the direction away from the lower hopper 15, the moving rod 36 can drive the second wedge block 34 to move. At this time, under the action of the slider 33 and the slide groove 35, the first wedge block 32 can be driven to move downward, and the vertical rod 77 slides downward inside the limit frame 31, thereby driving the insertion rod 29 to move downward through the U-shaped seat 30. When the insertion rod 29 moves downward, it can drive the breaking rod 24 to rotate around the axis of the first rotating shaft 27, that is, the end of the breaking rod 24 located inside the avoidance groove 23 can rotate upward, so as to realize the moving and breaking of the biomass waste on the grille 22. While the biomass waste is being transported and loaded, the biomass waste transported to the grille 22 can be moved and broken, so that the biomass waste can be dispersed, thereby avoiding the accumulation of biomass waste during transportation.

[0067] like Figure 1-Figure 12 As shown, the second transmission assembly includes a rack 49, a gear 50, a second driving wheel 52, a second driven wheel 53, a second transmission belt 54, a third mounting plate 55 and a second mounting plate 51;

[0068] One end of one of the moving rods 36 away from the moving plate 38 extends out of the combustion chamber 11 and is fixedly connected to one end of the rack 49. A guide rail 70 is fixed on one side of the combustion chamber 11 and below the rack 49. The rack 49 is slidably arranged inside the guide rail 70. The guide rail 70 is used to provide guidance and support for the rack 49. The second mounting plate 51 is fixedly mounted on the combustion chamber 11. The gear 50 is located above the rack 49 and is rotatably arranged on one side of the second mounting plate 51. The gear 50 and the rack 49 are meshed. The third mounting plate 55 is fixed on the combustion chamber 11. The second driven wheel 53 is rotatably arranged on the third mounting plate 55. The second driving wheel 52 is located on the side of the second mounting plate 51 away from the gear 50 and is coaxially arranged with the gear 50, that is, when the gear 50 rotates, it can drive the second driving wheel 52 to rotate synchronously. The second transmission belt 54 is sleeved on the second driving wheel 52 and the second driven wheel 53.

[0069] When the moving rod 36 moves toward the side away from the lower hopper 15, that is, the end of the scattering rod 24 located inside the avoidance groove 23 rotates upward, the moving rod 36 drives the rack 49 to move inside the guide rail 70 toward the side away from the lower hopper 15. The rack 49 drives the gear 50 to rotate when moving. When the gear 50 rotates, it can drive the second driving wheel 52 coaxially arranged therewith to rotate. Under the action of the second transmission belt 54, the second driven wheel 53 can rotate synchronously.

[0070] It should be noted here that the diameter of the second driving wheel 52 is greater than the diameter of the second driven wheel 53, which plays a role in increasing the speed.

[0071] like Figure 1-Figure 12As shown, the drive assembly includes an inner ratchet 56, a disc 57, a mounting slot 58, a pawl 59, a spring 60, a third bevel gear 64 and a fourth bevel gear 65;

[0072] The inner ratchet 56 is located at a side of the third mounting plate 55 away from the second driven wheel 53 and is coaxially arranged with the second driven wheel 53. When the second driven wheel 53 rotates, it can drive the inner ratchet 56 to rotate synchronously. The disc 57 is located in the middle of the inner ratchet 56. The mounting groove 58 is opened on one side of the disc 57. One end of the pawl 59 is hinged to the inside of the mounting groove 58, and the other end of the pawl 59 is engaged with the inner side of the inner ratchet 56. The spring 60 is located inside the mounting groove 58. The two ends of the spring 60 are respectively connected to the pawl 59 and the mounting groove 58. The third bevel gear 64 is fixedly installed on the rotating rod 62. A connecting shaft 78 is rotatably provided on one side of the air supply housing 61. The fourth bevel gear 65 is fixed to one end of the connecting shaft 78 and meshes with the third bevel gear 64. The other end of the connecting shaft 78 is fixedly connected to the disc 57.

[0073] In the initial state, the pawl 59 is clamped on the inner side of the inner ratchet 56. At this time, the spring 60 is in a natural state. When the moving rod 36 moves toward the side away from the lower hopper 15, the inner ratchet 56 is driven to rotate clockwise (refer to Figure 4 ), at this time, the pawl 59 and the inner ratchet 56 are engaged, and the inner ratchet 56 can drive the disc 57 to rotate when it rotates, and the disc 57 drives the fourth bevel gear 65 to rotate through the connecting shaft 78. Since the third bevel gear 64 and the fourth bevel gear 65 are meshed with each other, when the fourth bevel gear 65 rotates, it can drive the third bevel gear 64 to rotate, and the Shudie rotating rod 62 can be rotated and drive the fan blade 66 to rotate, so as to draw in the external gas and realize the delivery of oxygen through the delivery assembly;

[0074] When the second L-shaped frame 39 moves in the reverse direction to reset, it can drive the inner ratchet 56 to rotate counterclockwise (refer to Figure 4 ), when the pawl 59 rotates, the pawl 59 can be squeezed into the inside of the mounting groove 58, and the spring 60 is compressed, that is, the inner ratchet 56 will not drive the disc 57 to rotate when rotating, thereby preventing the fan blade 66 from rotating in the opposite direction;

[0075] That is, while the scattering rod 24 is moving the biomass waste on the grille 22, the rotation of the fan blades 66 can transport the outside air to the interior of the combustion chamber 11, so that the oxygen in the air can fully and evenly contact the biomass waste that has been moved, thereby playing a combustion-promoting effect and facilitating the full combustion of the biomass waste. When the scattering rod 24 has completed its movement and rotated in the reverse direction to reset, the fan blades 66 stop rotating.

[0076] like Figure 1-Figure 12As shown, the conveying assembly includes two main pipes 67, four branch pipes 68 and a plurality of air outlets 69. The two main pipes 67 are symmetrically installed on both sides of one end of the air supply housing 61 close to the combustion chamber 11. Every two branch pipes 68 are installed at one end of a main pipe 67 away from the air supply housing 61 through a three-way valve. Every two branch pipes 68 are installed on both sides of the combustion chamber 11. The plurality of air outlets 69 are respectively installed on the four branch pipes 68, and each air outlet 69 extends into the interior of the combustion chamber 11.

[0077] When the fan blades 66 rotate, the external gas can be transported to the two main pipes 67, and the gas is transported to the four branch pipes 68 through the two main pipes 67, and the gas is transported to the inside of the combustion chamber 11 through multiple air outlets 69, so that the biomass waste inside the combustion chamber 11 can be fully contacted with the oxygen in the gas, which is conducive to the full combustion of the biomass waste;

[0078] Specifically, the two shunt pipes 68 on each side are respectively located above and below the grid 22, so that part of the gas can contact the biomass fuel above the grid 22, and the other part of the gas can contact the ash falling below the grid 22 after combustion, ensuring complete combustion.

[0079] like Figure 1-Figure 12 As shown, a smoke exhaust chamber 14 is fixed at the top of the heat exchange chamber 12, and a smoke purification chamber 13 is installed at the top of the smoke exhaust chamber 14. The combustion chamber 11, the heat exchange chamber 12, the smoke exhaust chamber 14, and the smoke purification chamber 13 are sequentially connected, so that the smoke generated by the combustion can pass through the heat exchange chamber 12, the smoke exhaust chamber 14, and the smoke purification chamber 13 in sequence. A heat exchange tube 75 is installed inside the heat exchange chamber 12, and both ends of the heat exchange tube 75 extend out of the heat exchange chamber 12 respectively. Specifically, both ends of the heat exchange tube 75 are connected to external equipment respectively. By setting the heat exchange chamber 12 and the heat exchange tube 75 installed inside the heat exchange chamber 12, the biomass waste inside the combustion chamber 11 is The high-temperature flue gas generated by the combustion of biomass waste can enter the interior of the heat exchange chamber 12, and the high-temperature flue gas can be used to heat the water flowing in the heat exchange tube 75, which plays a role in heat supply, and can realize the recovery of the heat generated by the incineration of biomass waste, and can achieve the purpose of waste resource utilization. The exhaust chamber 14 is provided with an impeller 76 for rotation. By arranging a rotatable impeller 76 inside the exhaust chamber 14, the flue gas can drive the impeller 76 to rotate when it moves into the exhaust chamber 14. When the impeller 76 rotates, the exhaust speed of the flue gas can be accelerated. At the same time, the rotation speed of the impeller 76 can be adjusted according to the amount of flue gas to meet the use requirements;

[0080] The high-temperature flue gas generated by the incineration in the combustion chamber 11 first enters the interior of the heat exchange chamber 12 for heat exchange, and then quickly enters the interior of the flue gas purification chamber 13 under the action of the impeller 76. By setting up the flue gas purification chamber 13, the flue gas generated by the incineration can be purified to achieve harmless treatment of biomass waste. It should be noted here that the flue gas purification chamber 13 is a prior art and will not be elaborated here.

[0081] like Figure 1-Figure 12 As shown, a smoke exhaust pipe 74 and an air inlet pipe 72 are fixed to the top of the flue gas purification chamber 13, a heating chamber 71 is opened in the middle of the side wall of the lower hopper 15, the other end of the air inlet pipe 72 is connected to the inside of the heating chamber 71, and an air outlet pipe 73 is installed on one side of the lower hopper 15, and one end of the air outlet pipe 73 is connected to the heating chamber 71;

[0082] The air inlet pipe 72 allows part of the purified gas to enter the interior of the heating chamber 71, which is beneficial for other waste heat to heat the biomass waste inside the lower hopper 15, achieving a drying effect and preventing the moisture of the biomass waste from affecting its full combustion.

[0083] The specific working process of the present invention is as follows:

[0084] When in use, firstly, put the biomass waste into the lower hopper 15, start the motor 18, the motor 18 can drive the conveying shaft 19 to rotate, and the conveying shaft 19 can drive the spiral blade 20 installed on the conveying shaft 19 to rotate when rotating. At this time, the biomass waste in the lower hopper 15 falls into the conveying pipe 16 under the action of gravity, and the spiral blade 20 rotates to transport the biomass waste to the inclined plate 21. Since the inclined plate 21 is inclined, the biomass waste is transported to the grid 22 for incineration under the guidance of the inclined plate 21.

[0085] When the conveying shaft 19 rotates, it can drive the first bevel gear 46 to rotate. When the first bevel gear 46 rotates, it can drive the second bevel gear 47 meshing with the first bevel gear 46 to rotate. When the second bevel gear 47 rotates, it can drive the first driving wheel 43 coaxially arranged therewith to rotate. Under the action of the first transmission belt 45, it can drive the first driven wheel 44 to rotate, so that the second rotating shaft 40 can rotate on the turntable 41. When the second rotating shaft 40 rotates, it can drive the turntables 41 at both ends of the second rotating shaft 40 to rotate. When the turntable 41 rotates, it can drive the two moving rods 36 to perform telescopic reciprocating motion inside the combustion chamber 11 through the moving plate 38 under the action of the hinged rod 42. When the moving rod 36 moves in a direction away from the lower hopper 15, , the moving rod 36 can drive the second wedge block 34 to move, and at this time, the first wedge block 32 can be driven to move downward under the action of the slider 33 and the slide groove 35, and the vertical rod 77 slides downward inside the limit frame 31, thereby driving the insertion rod 29 to move downward through the U-shaped seat 30, and when the insertion rod 29 moves downward, it can drive the scattering rod 24 to rotate around the axis of the first rotation axis 27, that is, the end of the scattering rod 24 located inside the avoidance groove 23 can rotate upward, so as to realize the stirring and scattering of the biomass waste on the grille 22. While the biomass waste is being transported and loaded, the biomass waste transported to the grille 22 can be stirred and scattered, so that the biomass waste can be dispersed, thereby avoiding the accumulation of biomass waste during transportation;

[0086] When the moving rod 36 moves toward the side away from the lower hopper 15, that is, the end of the breaking rod 24 located in the avoidance groove 23 rotates upward, the moving rod 36 drives the rack 49 to move inside the guide rail 70 toward the side away from the lower hopper 15. The rack 49 drives the gear 50 to rotate when moving. When the gear 50 rotates, it can drive the second driving wheel 52 coaxially arranged therewith to rotate. Under the action of the second transmission belt 54, the second driven wheel 53 can rotate synchronously, and the second driven wheel 53 can drive the inner ratchet 56 to rotate synchronously. In the initial state, the pawl 59 is clamped on the inner side of the inner ratchet 56. At this time, the spring 60 is in a natural state. When the moving rod 36 moves toward the side away from the lower hopper 15, it drives the inner ratchet 56 to rotate clockwise (refer to Figure 4 ), at this time, the pawl 59 and the inner ratchet 56 are engaged, and the inner ratchet 56 can drive the disc 57 to rotate when it rotates, and the disc 57 drives the fourth bevel gear 65 to rotate through the connecting shaft 78. Since the third bevel gear 64 and the fourth bevel gear 65 are meshed with each other, when the fourth bevel gear 65 rotates, it can drive the third bevel gear 64 to rotate, and the Shudie rotating rod 62 can be rotated and drive the fan blade 66 to rotate, so as to draw in the external gas and realize the delivery of oxygen through the delivery assembly;

[0087] When the second L-shaped frame 39 moves in the reverse direction to reset, it can drive the inner ratchet 56 to rotate counterclockwise (refer to Figure 4), at this time, when the pawl 59 rotates, the pawl 59 can be squeezed into the inside of the installation groove 58, and the spring 60 is compressed, that is, the inner ratchet 56 will not drive the disc 57 to rotate when rotating, so as to prevent the fan blade 66 from rotating in the opposite direction, that is, when the scattering rod 24 moves the biomass waste on the grille 22, the rotation of the fan blade 66 can transport the outside air into the combustion chamber 11, so that the oxygen in the air can fully and evenly contact the biomass waste that is moved, play a combustion-supporting effect, and is conducive to the full combustion of the biomass waste. When the scattering rod 24 is moved and rotated back to reset, the fan blade 66 stops rotating;

[0088] When the fan blades 66 rotate, the external gas can be transported to the two main pipes 67, and the gas is transported to the four branch pipes 68 through the two main pipes 67, and the gas is transported to the inside of the combustion chamber 11 through multiple air outlets 69, so that the biomass waste inside the combustion chamber 11 can be fully contacted with the oxygen in the gas, which is conducive to the full combustion of the biomass waste;

[0089] The high-temperature flue gas generated by the incineration in the combustion chamber 11 first enters the interior of the heat exchange chamber 12, and the high-temperature flue gas can be used to heat the water flowing in the heat exchange tube 75, thereby providing heat, and realizing the recovery of the heat generated by the incineration of the biomass waste, thereby achieving the purpose of waste resource utilization. Subsequently, under the action of the impeller 76, the flue gas quickly enters the interior of the flue gas purification chamber 13. By setting up the flue gas purification chamber 13, the flue gas generated by the incineration can be purified, and the harmless treatment of the biomass waste can be achieved. The air inlet pipe 72 is used to allow part of the purified gas to enter the interior of the heating chamber 71, which is beneficial for other waste heat to heat the biomass waste in the lower hopper 15, thereby achieving the effect of drying, and preventing the moisture of the biomass waste from affecting the full combustion of the biomass waste.

[0090] The beneficial effects of the present invention are specifically embodied in that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A biomass waste fuel heating furnace, comprising a combustion chamber (11), a heat exchange chamber (12) and a flue gas purification chamber (13), wherein the heat exchange chamber (12) is installed at the top of the combustion chamber (11), and the flue gas purification chamber (13) is located above the heat exchange chamber (12), characterized in that: It also includes a grille (22), an inclined plate (21), a feeding mechanism, a toggle mechanism, an oxygen supply mechanism and two side plates (25), one end of the grille (22) is fixedly mounted inside the combustion chamber (11), the inclined plate (21) is fixed to the other end of the grille (22), the other end of the inclined plate (21) is fixed to the combustion chamber (11), and the two side plates (25) are symmetrically mounted on both sides of the inclined plate (21) and the grille (22); The feeding mechanism comprises a lower hopper (15), a conveying pipe (16) and a conveying assembly, wherein the lower hopper (15) is fixed to one end of the combustion chamber (11), the conveying pipe (16) is installed below the lower hopper (15), the two ends of the conveying pipe (16) are respectively connected to the combustion chamber (11) and the lower hopper (15), and the conveying assembly is installed on the conveying pipe (16); The toggle mechanism comprises a first transmission assembly, a telescopic assembly, a plurality of avoidance grooves (23), a plurality of breaking rods (24), a plurality of swing assemblies and a plurality of through grooves (26); the plurality of avoidance grooves (23) are respectively arranged on both sides of the grille (22); two adjacent avoidance grooves (23) are arranged staggered with each other; each through groove (26) is located on one side of an avoidance groove (23) and is arranged on the side plate (25); each through groove (26) is communicated with an avoidance groove (23); each breaking rod (24) passes through a through groove (26) and is located inside an avoidance groove (23); the breaking rod (24) is hinged inside the through groove (26) via a first rotating shaft (27); each swing assembly is located below one end of a breaking rod (24) away from the avoidance groove (23); the telescopic assembly is installed between the combustion chamber (11) and the plurality of swing assemblies; and the first transmission assembly is installed between the telescopic assembly and the conveying assembly; The oxygen supply mechanism comprises an air supply housing (61), a rotating rod (62), a fan blade (66), a conveying assembly, a driving assembly, and a second transmission assembly. The air supply housing (61) is mounted on an end of the combustion chamber (11) away from the lower hopper (15). The rotating rod (62) is rotatably mounted on the air supply housing (61). The fan blade (66) is fixedly mounted on the surface of the rotating rod (62). The conveying assembly is mounted between the air supply housing (61) and the combustion chamber (11). The driving assembly is mounted on one side of the air supply housing (61) and is used to drive the rotating rod (62) to rotate. The second transmission assembly is located between the driving assembly and the telescopic assembly. The conveying assembly comprises a conveying shaft (19), a spiral blade (20), a motor (18) and a first L-shaped frame (17); The first L-shaped frame (17) is located below the delivery pipe (16) and is fixed on the combustion chamber (11). The delivery shaft (19) is rotatably arranged inside the delivery pipe (16). One end of the delivery shaft (19) extends out of the delivery pipe (16) and is rotatably arranged on the first L-shaped frame (17). The other end of the delivery shaft (19) extends into the combustion chamber (11). The spiral blade (20) is fixedly mounted on the delivery shaft (19). The motor (18) is fixed on the first L-shaped frame (17). The output end of the motor (18) is fixedly connected to the delivery shaft (19). The first transmission assembly comprises a second rotating shaft (40), a first driving wheel (43), a first driven wheel (44), a first transmission belt (45), a first bevel gear (46), a second bevel gear (47) and two second L-shaped frames (39); A first mounting plate (48) fixed to the combustion chamber (11) is provided on one side of the delivery pipe (16); a second bevel gear (47) is rotatably mounted on one side of the first mounting plate (48); a first bevel gear (46) is fixedly mounted on the surface of the delivery shaft (19); the second bevel gear (47) and the first bevel gear (46) are meshed with each other; two second L-shaped frames (39) are symmetrically fixed to the ends of the combustion chamber (11); a second rotating shaft (40) is rotatably mounted on the two second L-shaped frames (39) via bearings; a first driven wheel (44) is fixed to the second rotating shaft (40); a first driving wheel (43) is located on a side of the first mounting plate (48) away from the second bevel gear (47) and is coaxially arranged with the second bevel gear (47); and a first transmission belt (45) is sleeved on the first driven wheel (44) and the first driving wheel (43); The telescopic assembly comprises a moving plate (38), two rotating disks (41), two hinged rods (42), two moving rods (36) and a plurality of limiting seats (37); Two moving rods (36) are symmetrically slidably arranged on both sides of the combustion chamber (11); a moving plate (38) is fixed to one end of the two moving rods (36) close to the lower hopper (15); two rotating disks (41) are symmetrically fixed to both ends of the second rotating shaft (40); one end of each hinged rod (42) is hinged to the moving plate (38); the other end of each hinged rod (42) is hinged to one side edge of a rotating disk (41); a plurality of limit seats (37) are symmetrically installed on both sides of the inner cavity of the combustion chamber (11); and each moving rod (36) is slidably arranged on a plurality of limit seats (37) located on the same side; Each swing assembly comprises a strip groove (28), an insertion rod (29), a U-shaped seat (30), a first wedge block (32), a second wedge block (34), two limit frames (31) and two vertical rods (77); The strip groove (28) is formed at one end of the scattering rod (24) away from the avoidance groove (23), the insertion rod (29) is inserted into the strip groove (28), the U-shaped seat (30) is fixedly installed at both ends of the insertion rod (29) and is located below the scattering rod (24), two limit frames (31) are symmetrically fixed to the inner wall of the combustion chamber (11), each vertical rod (77) is slidably set on a limit frame (31), the top end of each vertical rod (77) is fixedly connected to the U-shaped seat (30), the bottom end of each vertical rod (77) is fixedly connected to the first wedge block (32), the second wedge block (34) is fixedly installed on one side of the moving rod (36), and the first wedge block (32) is slidably set on the top end of the second wedge block (34); The second transmission assembly comprises a rack (49), a gear (50), a second driving wheel (52), a second driven wheel (53), a second transmission belt (54), a third mounting plate (55) and a second mounting plate (51); One end of one of the moving rods (36) away from the moving plate (38) extends out of the combustion chamber (11) and is fixedly connected to one end of the rack (49); a guide rail (70) is fixed on one side of the combustion chamber (11) and below the rack (49); the rack (49) is slidably arranged inside the guide rail (70); a second mounting plate (51) is fixedly mounted on the combustion chamber (11); a gear (50) is located above the rack (49) and is rotatably arranged on one side of the second mounting plate (51); the gear (50) and the rack (49) are meshed with each other; a third mounting plate (55) is fixed on the combustion chamber (11); a second driven wheel (53) is rotatably arranged on the third mounting plate (55); a second driving wheel (52) is located on a side of the second mounting plate (51) away from the gear (50) and is coaxially arranged with the gear (50); and a second transmission belt (54) is sleeved on the second driving wheel (52) and the second driven wheel (53); The driving assembly comprises an inner ratchet (56), a disc (57), a mounting groove (58), a pawl (59), a spring (60), a third bevel gear (64) and a fourth bevel gear (65); The inner ratchet (56) is located on a side of the third mounting plate (55) away from the second driven wheel (53) and is coaxially arranged with the second driven wheel (53). The disc (57) is located in the middle of the inner ratchet (56). The mounting groove (58) is opened on one side of the disc (57). One end of the pawl (59) is hinged to the inside of the mounting groove (58), and the other end of the pawl (59) is engaged with the inner side of the inner ratchet (56). The spring (60) is located inside the mounting groove (58), and the two ends of the spring (60) are respectively connected to the pawl (59) and the mounting groove (58). The third bevel gear (64) is fixedly mounted on the rotating rod (62). A connecting shaft (78) is rotatably arranged on one side of the air supply housing (61). The fourth bevel gear (65) is fixed to one end of the connecting shaft (78) and meshes with the third bevel gear (64). The other end of the connecting shaft (78) is fixedly connected to the disc (57).

2. A biomass waste fuel heating furnace according to claim 1, characterized in that: The conveying assembly comprises two main pipes (67), four branch pipes (68) and a plurality of air outlets (69); the two main pipes (67) are symmetrically mounted on both sides of an end of an air supply housing (61) close to a combustion chamber (11); each two branch pipes (68) are mounted on an end of a main pipe (67) away from the air supply housing (61) through a three-way valve; each two branch pipes (68) are mounted on both sides of the combustion chamber (11); the plurality of air outlets (69) are respectively mounted on the four branch pipes (68); and each air outlet (69) extends into the interior of the combustion chamber (11).

3. The biomass waste fuel heating furnace according to claim 2, characterized in that: A smoke exhaust chamber (14) is fixed at the top of the heat exchange chamber (12), and a smoke purification chamber (13) is installed at the top of the smoke exhaust chamber (14). The combustion chamber (11), the heat exchange chamber (12), the smoke exhaust chamber (14), and the smoke purification chamber (13) are sequentially connected. A heat exchange tube (75) is installed inside the heat exchange chamber (12), and both ends of the heat exchange tube (75) extend out of the heat exchange chamber (12). An impeller (76) is rotatably arranged inside the smoke exhaust chamber (14).

4. The biomass waste fuel heating furnace according to claim 3, characterized in that: A smoke exhaust pipe (74) and an air inlet pipe (72) are fixed to the top of the flue gas purification chamber (13), a heating chamber (71) is provided in the middle of the side wall of the lower hopper (15), the other end of the air inlet pipe (72) is communicated with the interior of the heating chamber (71), and an air outlet pipe (73) is installed on one side of the lower hopper (15), one end of the air outlet pipe (73) is communicated with the heating chamber (71).

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