An automatic feeding device and combustion-supporting and slag-removing system for a biomass combustion boiler

Abstract

The invention discloses an automatic feeding device and a combustion-supporting and slag-removing system for a biomass combustion boiler, comprising a boiler body and a combustion-supporting mechanism, and the invention belongs to the technical field of biomass combustion boilers; in the process of biomass fuel combustion in the invention, hot flue gas is discharged through a flue gas pipe, and the fan is started to allow external air to enter the interior of the heat exchange tube, and the air exchanges heat with the hot flue gas discharged from the flue gas pipe during transportation inside the heat exchange tube, and the heated air is discharged to the interior of a combustion chamber through an air outlet, and the fuel is combustion-supported once, and after a certain amount of fuel residue is accumulated inside the ash accumulation chamber, the fan brings external air into the ash accumulation chamber, and the air is preferentially heated by the waste heat of the fuel residue and then enters the combustion chamber through a corrugated plate, and the fuel is combustion-supported twice, so that the waste heat of the fuel is recycled and utilized, and the purpose of combustion-supporting the fuel and avoiding fuel heat loss and waste is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of biomass combustion boilers, and in particular relates to an automatic feeding device and a combustion-supporting and slag-removing system for a biomass combustion boiler. Background Art

[0002] Biomass combustion boilers use straw, rice bran, wood chips, bark, peanut shells, hemp stalks, etc. as raw materials, and process them into molded fuels with a certain shape and size, high stacking density, and are easy to transport and burn. They are used to replace coal, fuel oil and natural gas to achieve energy conservation and emission reduction and reduce costs. Biomass combustion boilers can be used in large-scale heating, small and medium-sized hotels, daily cooking, boiling water, bathing, heating and other fields, and have broad application prospects.

[0003] A patent with patent number CN114754373B discloses an environmentally friendly biomass combustion boiler, including a boiler box, a box door, a heating chamber formed inside the boiler box, an exhaust pipe, a water outlet pipe, a water injection pipe, a smoke exhaust pipe and a feed box installed on the boiler box, a grate installed inside the boiler box, a discharge rack and a storage box, both side walls of the feed box are formed with protrusions outwardly, a movable frame is provided at the bottom of the feed box, and a sliding sleeve mounted on the outside of the protrusion is fixed on the movable frame, a push plate is provided in the feed box, and the push plate and the protrusion are fixed by a connecting rod.

[0004] However, the environmentally friendly biomass combustion boiler in the above patent still has certain problems during use: 1. The waste heat after fuel combustion is not fully utilized and the fuel is not used to assist combustion during combustion; 2. The grate is not cleaned; 3. It is not convenient to evenly lay the fuel on the grate, which will cause heat waste from fuel combustion and affect the utilization of fuel thermal energy. Therefore, an automatic feeding device and a combustion-assisting and slag removal system for a biomass combustion boiler are proposed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an automatic feeding device for a biomass combustion boiler and a combustion-supporting and slag-removing system to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A biomass combustion boiler combustion support and slag removal system, including a boiler body, a coral plate is fixedly installed inside the boiler body, an ignition port, a furnace door and a smoke exhaust port are arranged on the boiler body, and also includes:

[0007] A combustion-supporting mechanism, the combustion-supporting mechanism includes a heat exchange tube, a fan, an air outlet and a secondary combustion-supporting assembly. A mounting box is fixedly connected to one side of the boiler body, the fan is fixedly installed inside the mounting box, one end of the heat exchange tube passes through the mounting box and is fixedly connected to one end of the fan exhaust duct. The air outlet is provided on one side of the boiler body and corresponds to the combustion chamber on the top of the coral plate. One end of the air outlet away from the boiler body is fixedly connected to one end of the fan air supply duct. The secondary combustion-supporting assembly includes an ash accumulation chamber and a fan.

[0008] On the basis of the above technical solution, the present invention also provides the following optional technical solution:

[0009] Further technical solution: the ash accumulation chamber is fixedly installed at the bottom of the boiler body and is fixedly connected to the inner bottom of the boiler body. A ash blocking door for protection is hinged on one side of the ash accumulation chamber. An ash guide block inclined toward the ash blocking door is fixedly connected to the inner bottom of the ash accumulation chamber. The height of one end of the ash guide block close to the fan is lower than the bottom height of the mounting frame. The fan is fixedly installed on the top of the side of the ash accumulation chamber away from the ash blocking door through the mounting frame.

[0010] Further technical solution: a smoke exhaust pipe is fixedly connected to the outside of the smoke exhaust port, the smoke exhaust pipe and the heat exchange pipe are both configured as semicircular pipes, the semicircular end faces of the heat exchange pipe and the smoke exhaust pipe are both configured as heat conduction plates, and are fixedly connected to each other, the smoke exhaust port of the smoke exhaust pipe and the air inlet of the heat exchange pipe are respectively arranged in a direction away from the boiler body and the installation box.

[0011] Further technical solution: A cleaning assembly is provided on the side of the coral plate close to the furnace door, and the cleaning assembly includes a cleaning brush, a connecting block, a reciprocating screw and a motor. Two cleaning brushes are provided and are symmetrically distributed along the middle of the coral plate. One end of the two cleaning brushes is slidingly connected to the inner wall of the slide groove opened on the inner wall of the boiler body, and the other ends of the two cleaning brushes are fixedly connected through the connecting block. The reciprocating screw passes through the connecting block and is threadedly connected to the connecting block. Both ends of the reciprocating screw pass through both sides of the boiler body and are rotatably connected to the boiler body. The motor is fixedly installed on the outside of the boiler body, and one end of the motor output shaft is fixedly connected to one end of the reciprocating screw.

[0012] A further technical solution is that the lengths of the two cleaning brushes are consistent with the width of the coral board, and one side of the bristles on the two cleaning brushes are respectively in contact with the upper surface and the lower surface of the coral board.

[0013] Further technical solution: a unloading mechanism, which includes a mounting frame, a unloading plate, an electric hydraulic cylinder and a vibration assembly. A feed port is provided on one side of the boiler body at the top of the air outlet, one end of the mounting frame passes through the feed port and is slidably connected to the boiler body, the unloading plate fits against the inner wall of the mounting frame and is tilted toward the feed port, one end of the unloading plate close to the feed port is rotatably connected to both sides of the mounting frame, the electric hydraulic cylinder is fixedly connected to the mounting box, one end of the electric hydraulic cylinder output shaft is fixedly connected to a side of the mounting frame away from the feed port, a plurality of diverter strips are fixedly connected to the surface of one end of the unloading plate close to the feed port, and the vibration assembly includes a spring A and a vibration motor A.

[0014] Further technical solution: the vibration motor A is fixedly installed at the bottom of one end of the unloading plate away from the diverter strip, two springs A are provided and symmetrically distributed along the middle of the vibration motor A, and the two ends of the two springs A are elastically connected to the bottom of one end of the mounting frame and the bottom of one end of the unloading plate respectively.

[0015] Further technical solution: a plurality of the diverter strips are symmetrically distributed along the middle of the discharge plate, a group of diverter strips corresponding to the two sides of the middle of the discharge plate are in an eight-shaped shape, and the diverter strips are configured as cylindrical strips.

[0016] Further technical solution: A unloading assembly is provided on the top of the unloading mechanism, and the unloading assembly includes a screw feeder and a storage hopper. The screw feeder is fixedly installed inside the installation box, and the storage hopper is fixedly installed on the top of the installation box. The unloading pipe at the bottom of the storage hopper passes through the installation box and is fixedly connected with the feed port of the screw feeder. The discharge port of the screw feeder corresponds to the top of the unloading plate, and the bottom of the storage hopper is configured to be a chamfered table type.

[0017] Further technical solution: A support plate is fixedly connected to one side of the top of the storage hopper, and the bottom of the support plate is elastically connected to a vibration motor B through a number of springs B. The bottom of the vibration motor B is fixedly connected to a connecting rod, and the bottom of the connecting rod is set as a conical head and extends to the discharge pipe at the bottom of the storage hopper.

[0018] Beneficial Effects

[0019] The present invention provides an automatic feeding device and a combustion-supporting and slag-removing system for a biomass combustion boiler. Compared with the prior art, it has the following beneficial effects:

[0020] 1. The biomass fuel is evenly delivered to the surface of the ash board through the action of the feeding assembly and the unloading mechanism. During the combustion of the fuel, the hot flue gas is discharged through the exhaust pipe. During the exhaust of the hot flue gas, the fan is started to allow external air to enter the heat exchange tube. The air exchanges heat with the hot flue gas discharged from the exhaust pipe during transportation inside the heat exchange tube. The heated air is discharged to the inside of the combustion chamber through the air outlet, which not only supports the combustion of the fuel once, but also reduces the heat loss of the fuel heating the combustion air. After a certain amount of fuel residue is accumulated in the ash accumulation chamber, the fan is started to bring external air into the ash accumulation chamber. After the air enters the ash accumulation chamber, it is first heated by the waste heat of the fuel residue and then enters the combustion chamber through the ash board, so as to support the secondary combustion of the fuel, so as to realize the recycling of the waste heat of the fuel and achieve the purpose of supporting the combustion of the fuel and avoiding the loss and waste of fuel heat.

[0021] 2. By starting the motor, the connecting block drives the two cleaning brushes to reciprocate along the direction of the reciprocating screw under the limit of the inner wall of the boiler body, so that the two cleaning brushes brush both sides of the coral plate where the fuel has been burned, so as to remove the fuel residues adhering to both sides of the coral plate, so as to avoid clogging of the gap on the coral plate and affect the subsequent use of the coral plate.

[0022] 3. The vibration motor B drives the bottom of the connecting rod to vibrate the fuel at the discharge pipe of the storage hopper, so that the fuel continuously falls into the screw feeder, and the screw feeder discharges the fuel to the surface of the discharge plate. The vibration motor A and the diverter strip drive the fuel that falls on the discharge plate to disperse. In the process of the electric hydraulic cylinder driving the mounting frame and the discharge plate to reciprocate, the fuel falls evenly to the surface of the plate through gravity, so as to achieve the purpose of facilitating the full combustion of the fuel and uniform heating of the bottom of the boiler. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the overall structure distribution of the present invention.

[0025] Figure 3 It is a partial cross-sectional view of the present invention.

[0026] Figure 4 It is a partial side sectional view of the present invention.

[0027] Figure 5 It is a schematic diagram of the structure of the cleaning component of the present invention.

[0028] Figure 6 It is a schematic diagram of the local three-dimensional structure of the present invention.

[0029] Figure 7 It is a front view of the present invention.

[0030] Figure 8 It is a rear view of the present invention.

[0031] Notes on the accompanying drawings: 1. Boiler body; 2. Coral plate; 3. Ignition port; 4. Furnace door; 5. Smoke exhaust port; 6. Combustion-supporting mechanism; 7. Heat exchange tube; 8. Fan; 9. Air outlet; 10. Installation box; 11. Ash storage chamber; 12. Fan; 13. Installation frame; 14. Smoke exhaust pipe; 15. Installation frame; 16. Unloading plate; 17. Electric hydraulic cylinder; 18. Spring A; 19. Vibration motor A; 20. Diverter strip; 21. Cleaning brush; 22. Connecting block; 23. Reciprocating screw; 24. Motor; 25. Screw feeder; 26. Storage hopper; 27. Support plate; 28. Spring B; 29. ​​Vibration motor B; 30. Connecting rod. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0033] Example 1

[0034] See also Figures 1 to 8 , provided in one embodiment of the present invention, is a combustion-supporting and slag-removing system for a biomass combustion boiler, comprising a boiler body 1, a coral plate 2 is fixedly installed inside the boiler body 1, an ignition port 3, a furnace door 4 and a smoke exhaust port 5 are arranged on the boiler body 1, and also includes:

[0035] The combustion-supporting mechanism 6 includes a heat exchange tube 7, a fan 8, an air outlet 9 and a secondary combustion-supporting component. A mounting box 10 is fixedly connected to one side of the boiler body 1. The fan 8 is fixedly installed inside the mounting box 10. One end of the heat exchange tube 7 passes through the mounting box 10 and is fixedly connected to one end of the exhaust duct of the fan 8. The air outlet 9 is provided on one side of the boiler body 1 and corresponds to the combustion chamber on the top of the coral plate 2. The end of the air outlet 9 away from the boiler body 1 is fixedly connected to one end of the air supply duct of the fan 8. The secondary combustion-supporting component includes an ash accumulation chamber 11 and a fan 12.

[0036] Preferably, the ash chamber 11 is fixedly installed at the bottom of the boiler body 1 and is fixedly connected to the bottom of the boiler body 1. A ash-blocking door for protection is hinged on one side of the ash chamber 11. An ash-guiding block inclined toward the ash-blocking door is fixedly connected to the bottom of the ash chamber 11. The height of the end of the ash-guiding block close to the fan 12 is lower than the height of the bottom of the mounting frame 13. The fan 12 is fixedly installed on the top of the side of the ash chamber 11 away from the ash-blocking door through the mounting frame 13. The purpose of this arrangement is to bring external air into the ash chamber 11 through the fan 12, so that the air is first heated by the residual heat of the fuel residue and then enters the combustion chamber through the slat 2, so as to achieve secondary combustion of the fuel, and through the setting of the ash-guiding block, the fuel ash is gathered at the ash-blocking door for easy discharge.

[0037] Preferably, a smoke exhaust pipe 14 is fixedly connected to the outside of the smoke exhaust port 5, and the smoke exhaust pipe 14 and the heat exchange pipe 7 are both configured as semicircular pipes, and the semicircular arc end surfaces of the heat exchange pipe 7 and the smoke exhaust pipe 14 are both configured as heat conducting plates, and are fixedly connected to each other, and the smoke exhaust port of the smoke exhaust pipe 14 and the air inlet of the heat exchange pipe 7 are respectively arranged in a direction away from the boiler body 1 and the installation box 10. The purpose of this arrangement is to heat the air entering the heat exchange pipe 7 through the smoke exhaust pipe 14, so as to achieve the purpose of utilizing the waste heat of the flue gas.

[0038] In the embodiment of the present invention, the biomass fuel is evenly delivered to the surface of the ash board 2 through the action of the feeding assembly and the unloading mechanism. During the combustion of the fuel, the hot flue gas is discharged through the exhaust pipe 14. During the exhaust of the hot flue gas, the fan 8 is started to allow external air to enter the heat exchange tube 7. During the transportation of the air inside the heat exchange tube 7, the hot flue gas discharged from the exhaust pipe 14 is exchanged with the heated air. The heated air is discharged to the inside of the combustion chamber through the air outlet 9, which not only assists the combustion of the fuel once, but also reduces the heat loss of the combustion air caused by the additional heating of the fuel. After a certain amount of fuel residue is accumulated in the ash chamber 11, the fan 12 is started to bring external air into the ash chamber 11. After the air enters the ash chamber 11, it is first heated by the waste heat of the fuel residue and then enters the combustion chamber through the ash board 2, so as to perform secondary combustion on the fuel, thereby realizing the recycling of the waste heat of the fuel and achieving the purpose of assisting the combustion of the fuel and avoiding the loss and waste of fuel heat.

[0039] Example 2

[0040] See also Figures 1 to 8As an embodiment of the present invention, a cleaning assembly is provided on one side of the coral plate 2 close to the furnace door 4, and the cleaning assembly includes a cleaning brush 21, a connecting block 22, a reciprocating screw 23 and a motor 24. Two cleaning brushes 21 are provided and are symmetrically distributed along the middle part of the coral plate 2. One end of the two cleaning brushes 21 is slidably connected to the inner wall of the slide groove opened on the inner wall of the boiler body 1, and the other ends of the two cleaning brushes 21 are fixedly connected through the connecting block 22. The reciprocating screw 23 passes through the connecting block 22 and is threadedly connected to the connecting block 22. Both ends of the reciprocating screw 23 pass through both sides of the boiler body 1 and are rotatably connected to the boiler body 1. The motor 24 is fixedly installed on the outside of the boiler body 1, and one end of the output shaft of the motor 24 is fixedly connected to one end of the reciprocating screw 23.

[0041] Preferably, the length of the two cleaning brushes 21 is consistent with the width of the coral board 2, and one side of the bristles on the two cleaning brushes 21 is respectively in contact with the upper surface and the lower surface of the coral board 2. The purpose of this arrangement is to achieve the purpose of thoroughly cleaning the upper surface and the lower surface of the coral board 2 by the cleaning brushes 21.

[0042] In the embodiment of the present invention, by starting the motor 24, the connecting block 22 drives the two cleaning brushes 21 to reciprocate along the direction of the reciprocating screw 23 under the limit of the inner wall of the boiler body 1, so that the two cleaning brushes 21 brush the two sides of the coral plate 2 where the fuel has been burned, so as to remove the fuel residues adhering to the two sides of the coral plate 2, thereby avoiding the gap on the coral plate 2 from being blocked and affecting the subsequent use of the coral plate 2.

[0043] Example 3

[0044] See also Figures 1 to 8 , provided as an embodiment of the present invention, is an automatic feeding device for a biomass combustion boiler, comprising: a discharge mechanism, the discharge mechanism comprising a mounting frame 15, a discharge plate 16, an electric hydraulic cylinder 17 and a vibration component, a feed port is provided on one side of the boiler body 1 at the top of the air outlet 9, one end of the mounting frame 15 passes through the feed port and is slidably connected to the boiler body 1, the discharge plate 16 is fitted with the inner wall of the mounting frame 15 and is inclined toward the feed port, one end of the discharge plate 16 close to the feed port is rotatably connected to both sides of the mounting frame 15, the electric hydraulic cylinder 17 is fixedly connected to the mounting box 10, one end of the output shaft of the electric hydraulic cylinder 17 is fixedly connected to the side of the mounting frame 15 away from the feed port, a plurality of diverter strips 20 are fixedly connected to the surface of one end of the discharge plate 16 close to the feed port, and the vibration component comprises a spring A18 and a vibration motor A19.

[0045] Preferably, the vibration motor A19 is fixedly mounted at the bottom of one end of the discharge plate 16 away from the diverter strip 20, two springs A18 are provided and symmetrically distributed along the middle of the vibration motor A19, and the two ends of the two springs A18 are elastically connected to the bottom of one end of the mounting frame 15 and the bottom of one end of the discharge plate 16. The purpose of this arrangement is to achieve the purpose of driving the discharge plate 16 to vibrate through the vibration motor A19, so as to facilitate the purpose of dispersing the fuel falling on the discharge plate 16.

[0046] Preferably, a plurality of diverter strips 20 are symmetrically distributed along the middle of the discharge plate 16, and a group of diverter strips 20 corresponding to the two sides of the middle of the discharge plate 16 are in an eight-shaped shape, and the diverter strips 20 are arranged as cylindrical strips. The purpose of this arrangement is to achieve the purpose of secondary dispersion of the fuel through the arrangement of the diverter strips 20.

[0047] Preferably, a material discharge assembly is provided on the top of the discharge mechanism, and the material discharge assembly includes a screw feeder 25 and a storage hopper 26. The screw feeder 25 is fixedly installed inside the installation box 10, and the storage hopper 26 is fixedly installed on the top of the installation box 10. The material discharge pipe at the bottom of the storage hopper 26 passes through the installation box 10 and is fixedly connected to the feed port of the screw feeder 25. The discharge port of the screw feeder 25 corresponds to the top of the discharge plate 16, and the bottom of the storage hopper 26 is set to be a chamfered table. The purpose of this setting is to achieve the purpose of delivering the fuel inside the storage hopper 26 to the discharge plate 16 through the screw feeder 25.

[0048] Preferably, a support plate 27 is fixedly connected to one side of the top of the storage hopper 26, a vibration motor B29 is elastically connected to the bottom of the support plate 27 through a plurality of springs B28, a connecting rod 30 is fixedly connected to the bottom of the vibration motor B29, and a conical head is provided at the bottom of the connecting rod 30, which extends to the discharge pipe at the bottom of the storage hopper 26. The purpose of this arrangement is to achieve vibration of the discharge pipe of the storage hopper 26 by driving the conical head at one end of the connecting rod 30 through the vibration motor B29, so as to avoid blockage of the discharge pipe of the storage hopper 26.

[0049] In the embodiment of the present invention, the vibration motor B29 drives the bottom of the connecting rod 30 to vibrate the fuel at the discharge pipe of the storage hopper 26, so that the fuel continuously falls into the screw feeder 25, and the screw feeder 25 discharges the fuel to the surface of the discharge plate 16, and then the vibration motor A19 and the diverter strip 20 drive the fuel that falls on the discharge plate 16 to be dispersed, so that the electric hydraulic cylinder 17 drives the mounting frame 15 and the discharge plate 16 to reciprocate, and the fuel falls evenly to the surface of the coral plate 2 by gravity during the reciprocating motion, so as to achieve the purpose of facilitating the full combustion of the fuel and uniform heating of the bottom of the boiler.

[0050] 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.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combustion-supporting and slag-removing system for a biomass combustion boiler, comprising a boiler body (1), a coral plate (2) fixedly installed inside the boiler body (1), an ignition port (3), a furnace door (4) and a smoke exhaust port (5) arranged on the boiler body (1), characterized in that: Also includes: A combustion-supporting mechanism (6), the combustion-supporting mechanism (6) comprising a heat exchange tube (7), a fan (8), an air outlet (9) and a secondary combustion-supporting assembly, one side of the boiler body (1) is fixedly connected to a mounting box (10), the fan (8) is fixedly mounted inside the mounting box (10), one end of the heat exchange tube (7) passes through the mounting box (10) and is fixedly connected to one end of an exhaust duct of the fan (8), the air outlet (9) is provided on one side of the boiler body (1) and corresponds to a combustion chamber at the top of the sill plate (2), one end of the air outlet (9) away from the boiler body (1) is fixedly connected to one end of an air supply duct of the fan (8), and the secondary combustion-supporting assembly comprises an ash accumulation chamber (11) and a fan (12); The ash accumulation chamber (11) is fixedly mounted on the bottom of the boiler body (1) and is fixedly connected to the bottom of the boiler body (1); a ash blocking door for protection is hingedly mounted on one side of the ash accumulation chamber (11); an ash guide block inclined toward the ash blocking door is fixedly connected to the bottom of the ash accumulation chamber (11); the height of one end of the ash guide block close to the fan (12) is lower than the height of the bottom of the mounting frame (13); and the fan (12) is fixedly mounted on the top of the ash accumulation chamber (11) on the side away from the ash blocking door via the mounting frame (13); The smoke exhaust port (5) is fixedly connected to a smoke exhaust pipe (14) on the outside, the smoke exhaust pipe (14) and the heat exchange pipe (7) are both configured as semicircular pipes, the semicircular end surfaces of the heat exchange pipe (7) and the smoke exhaust pipe (14) are both configured as heat conduction plates and are fixedly connected to each other, the smoke exhaust port of the smoke exhaust pipe (14) and the air inlet of the heat exchange pipe (7) are respectively arranged in a direction away from the boiler body (1) and the installation box (10); A cleaning assembly is provided on one side of the scallop plate (2) close to the furnace door (4), and the cleaning assembly comprises a cleaning brush (21), a connecting block (22), a reciprocating screw (23) and a motor (24). Two cleaning brushes (21) are provided and are symmetrically distributed along the middle of the scallop plate (2). One end of the two cleaning brushes (21) is slidably connected to the inner wall of a slide groove provided on the inner wall of the boiler body (1), and the other ends of the two cleaning brushes (21) are fixedly connected through the connecting block (22). The reciprocating screw (23) passes through the connecting block (22) and is threadedly connected to the connecting block (22). Two ends of the reciprocating screw (23) pass through two sides of the boiler body (1) and are rotatably connected to the boiler body (1). The motor (24) is fixedly installed on the outer side of the boiler body (1), and one end of the output shaft of the motor (24) is fixedly connected to one end of the reciprocating screw (23).

2. A biomass combustion boiler combustion-supporting and slag-removing system according to claim 1, characterized in that: The lengths of the two cleaning brushes (21) are consistent with the width of the coral board (2), and one side of the bristles on the two cleaning brushes (21) are respectively in contact with the upper surface and the lower surface of the coral board (2).

3. An automatic feeding device for a biomass combustion boiler according to claim 1, characterized in that: include: A discharge mechanism, the discharge mechanism comprising a mounting frame (15), a discharge plate (16), an electric hydraulic cylinder (17) and a vibration component, a feed port is provided on one side of the boiler body (1) at the top of the air outlet (9), one end of the mounting frame (15) passes through the feed port and is slidably connected to the boiler body (1), the discharge plate (16) is fitted with the inner wall of the mounting frame (15) and is inclined toward the feed port, one end of the discharge plate (16) close to the feed port is rotatably connected to both sides of the mounting frame (15), the electric hydraulic cylinder (17) is fixedly connected to the mounting box (10), one end of the output shaft of the electric hydraulic cylinder (17) is fixedly connected to the side of the mounting frame (15) away from the feed port, a plurality of diverter strips (20) are fixedly connected to the surface of one end of the discharge plate (16) close to the feed port, and the vibration component comprises a spring A (18) and a vibration motor A (19).

4. The automatic feeding device for a biomass combustion boiler according to claim 3 is characterized in that: The vibration motor A (19) is fixedly mounted on the bottom of one end of the discharge plate (16) away from the diverter strip (20), two springs A (18) are provided and symmetrically distributed along the middle of the vibration motor A (19), and the two ends of the two springs A (18) are elastically connected to the bottom of one end of the installation frame (15) and the bottom of one end of the discharge plate (16) respectively.

5. The automatic feeding device for a biomass combustion boiler according to claim 4 is characterized in that: A plurality of the diverter strips (20) are symmetrically distributed along the middle of the discharge plate (16); a group of diverter strips (20) corresponding to the two sides of the middle of the discharge plate (16) are in an eight-shaped shape; and the diverter strips (20) are configured as cylindrical strips.

6. The automatic feeding device for a biomass combustion boiler according to claim 3, characterized in that: A material discharge assembly is arranged at the top of the unloading mechanism, and the material discharge assembly comprises a screw feeder (25) and a storage hopper (26). The screw feeder (25) is fixedly installed inside the installation box (10), and the storage hopper (26) is fixedly installed on the top of the installation box (10). A material discharge pipe at the bottom of the storage hopper (26) passes through the installation box (10) and is fixedly connected to a feed port of the screw feeder (25). The discharge port of the screw feeder (25) corresponds to the top of the unloading plate (16), and the bottom of the storage hopper (26) is arranged to be a chamfered cone.

7. The automatic feeding device for a biomass combustion boiler according to claim 6, characterized in that: A support plate (27) is fixedly connected to one side of the top of the storage hopper (26); the bottom of the support plate (27) is elastically connected to a vibration motor B (29) via a plurality of springs B (28); the bottom of the vibration motor B (29) is fixedly connected to a connecting rod (30); the bottom of the connecting rod (30) is configured as a conical head and extends to the discharge pipe at the bottom of the storage hopper (26).

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