CN118274338A - Automatic feeding device of biomass combustion boiler and combustion-supporting slag removal system - Google Patents

Abstract

The invention discloses an automatic feeding device and a combustion-supporting slag removal system of a biomass combustion boiler, which comprise a boiler body and a combustion-supporting mechanism, and belong to the technical field of biomass combustion boilers; in the biomass fuel combustion process, hot flue gas is discharged through the smoke exhaust pipe, external air enters the heat exchange pipe through the starting fan, the air exchanges heat with the hot flue gas discharged by the smoke exhaust pipe in the heat exchange pipe conveying process, the heated air is discharged into the combustion chamber through the air outlet, the fuel is subjected to primary combustion supporting, a certain amount of fuel residues are accumulated in the ash accumulation chamber, the external air is brought into the ash accumulation chamber by the fan, the air is heated by the waste heat of the fuel residues and then enters the combustion chamber through the grating plate, the fuel is subjected to secondary combustion supporting, and the purposes of supporting the fuel, avoiding fuel heat loss and waste are achieved while recycling the fuel waste heat.

Description

Automatic feeding device of biomass combustion boiler and combustion-supporting slag removal system

Technical Field

The invention belongs to the technical field of biomass combustion boilers, and particularly relates to an automatic feeding device and a combustion-supporting slag removal system of a biomass combustion boiler.

Background

The biomass combustion boiler uses straw, rice chaff, wood dust, bark, peanut shell, hemp stalk and the like as raw materials, is processed into a formed fuel which has a certain shape and size, high stacking density and is favorable for transportation and combustion, is used for replacing coal, fuel oil and natural gas, realizes energy conservation and emission reduction, reduces cost, can be suitable for the fields of large heating, middle and small hotels, daily cooking, water heating, bathing, heating and the like, and has wide application prospect.

The patent number CN114754373B discloses an environment-friendly biomass combustion boiler, including boiler case, chamber door, shaping at the inside heating chamber of boiler case, install blast pipe, outlet pipe, water injection pipe, exhaust pipe and feeding case on the boiler case, the inside grate of installation boiler case, row work or material rest and containing box, the both sides wall of feeding case all outwards shaping has the lug, the bottom of feeding case is equipped with removes the frame, and is fixed with the cover on removing the frame and establish the sliding sleeve outside the lug, be equipped with the push pedal in the feeding case, and fix mutually through the connecting rod between push pedal and the protruding one.

However, the environment-friendly biomass combustion boiler in the patent still has certain problems in the use process, 1, the waste heat after the fuel is combusted is not fully utilized, and the combustion supporting in the combustion process is carried out on the fuel, 2, the fire grate is not cleaned, 3, the fuel is not conveniently and uniformly paved on the fire grate, the waste of the heat of the fuel combustion can be caused, the heat energy utilization of the fuel is influenced, and therefore, the automatic feeding device and the combustion supporting slag removing system of the biomass combustion boiler are provided.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an automatic feeding device of a biomass combustion boiler and a combustion-supporting slag removal system, which solve the problems.

In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a combustion-supporting slag removal system of biomass combustion boiler, includes the boiler body, the inside fixed mounting of boiler body has the grating, be provided with ignition port, furnace gate and exhaust port on the boiler body, still include:

The combustion-supporting mechanism comprises a heat exchange tube, a fan, an air outlet and a secondary combustion-supporting component, wherein one side of the boiler body is fixedly connected with an installation box, the fan is fixedly installed inside the installation box, one end of the heat exchange tube penetrates through the installation box to be fixedly connected with one end of an air suction pipeline of the fan, the air outlet is formed in one side of the boiler body and corresponds to a combustion chamber at the top of a grid plate, one end of the air outlet, away from the boiler body, is fixedly communicated with one end of an air supply pipeline of the fan, and the secondary combustion-supporting component comprises an ash deposition chamber and a fan.

Based on the technical scheme, the invention also provides the following optional technical schemes:

The technical scheme is as follows: the utility model discloses a boiler, including the dust deposit room, the dust deposit room is fixed mounting in boiler body bottom, and with the fixed intercommunication in the boiler body bottom, dust deposit room one side articulates there is the ash blocking door that is used for the protection, dust deposit room indoor bottom fixedly connected with is to ash blocking door department slope's ash guiding block, and the one end that ash guiding block is close to the fan highly is less than the mounting bracket bottom height, the fan is kept away from one side top of ash blocking door at the dust deposit room through mounting bracket fixed mounting.

The technical scheme is as follows: the flue gas pipe is arranged in fixed communication on the outer side of the flue gas outlet, the flue gas outlet and the heat exchange tube are all arranged into semicircle tubes, the heat exchange tube and the semicircle end face of the flue gas outlet are all arranged into heat conducting plates and are fixedly connected with each other, and the flue gas outlet of the flue gas outlet and the air inlet of the heat exchange tube are respectively arranged in a direction away from the boiler body and the mounting box.

The technical scheme is as follows: the utility model discloses a boiler is characterized in that a cleaning assembly is arranged on one side of a grating plate, which is close to a boiler door, and comprises two cleaning brushes, a connecting block, a reciprocating screw and a motor, wherein the two cleaning brushes are symmetrically distributed along the middle part of the grating plate, one end of each cleaning brush is in sliding connection with the inner wall of a chute formed in the inner wall of the boiler body, the two ends of each cleaning brush are fixedly connected through the connecting block, the reciprocating screw passes through the connecting block and is in threaded connection with the connecting block, two ends of the reciprocating screw pass through two sides of the boiler body and are rotationally connected with the boiler body, the motor is fixedly arranged on the outer side of the boiler body, and one end of an output shaft of the motor is fixedly connected with one end of the reciprocating screw.

The technical scheme is as follows: the length of the two cleaning brushes is consistent with the width of the grating plate, and one sides of the bristles on the two cleaning brushes are respectively in abutting connection with the upper surface and the lower surface of the grating plate.

The technical scheme is as follows: the discharging mechanism comprises a mounting frame, a discharging plate, an electric hydraulic cylinder and a vibration assembly, wherein a feeding hole is formed in one side of a boiler body at the top of an air outlet, one end of the mounting frame penetrates through the feeding hole and is in sliding connection with the boiler body, the discharging plate is attached to the inner wall of the mounting frame and is obliquely arranged towards one side of the feeding hole, one end, close to the feeding hole, of the discharging plate is rotationally connected with two sides of the mounting frame, the electric hydraulic cylinder is fixedly connected with the mounting box, one end of an output shaft of the electric hydraulic cylinder is fixedly connected with one side, far away from the feeding hole, of the mounting frame, a plurality of shunt strips are fixedly connected with one end surface, close to the feeding hole, of the discharging plate, and the vibration assembly comprises a spring A and a vibration motor A.

The technical scheme is as follows: vibrating motor A fixed mounting keeps away from the one end bottom of reposition of redundant personnel strip at the stripper, spring A is provided with two, and follows vibrating motor A middle part symmetric distribution, two vibrating motor A's both ends respectively with installing frame one end bottom and stripper one end bottom elastic connection.

The technical scheme is as follows: the plurality of the shunt strips are symmetrically distributed along the middle part of the stripper plate, a group of corresponding shunt strips on two sides of the middle part of the stripper plate are splayed, and the shunt strips are cylindrical strips.

The technical scheme is as follows: the discharging mechanism is characterized in that the discharging mechanism top is provided with a discharging assembly, the discharging assembly comprises a spiral feeder and a storage hopper, the spiral feeder is fixedly installed inside an installation box, the storage hopper is fixedly installed at the top of the installation box, a discharging pipe at the bottom of the storage hopper penetrates through the installation box to be fixedly communicated with a feeding hole of the spiral feeder, a discharging hole of the spiral feeder corresponds to the top of a discharging plate, and the bottom of the storage hopper is arranged to be an inverted prismatic table.

The technical scheme is as follows: the utility model discloses a storage hopper, including storage hopper, vibrating motor B, connecting rod, storage hopper top one side fixedly connected with backup pad, the backup pad bottom is through a plurality of spring B elastic connection has vibrating motor B, vibrating motor B bottom fixedly connected with connecting rod, the connecting rod bottom sets up to the conical head, and stretches to storage hopper bottom unloading pipe department.

Advantageous effects

The invention provides an automatic feeding device of a biomass combustion boiler and a combustion-supporting slag removal system. Compared with the prior art, the method has the following beneficial effects:

1. The biomass fuel is uniformly fed to the surface of the grid plate through the action of the blanking component and the discharging mechanism, hot flue gas is discharged through the smoke exhaust pipe in the fuel combustion process, in the hot flue gas discharge process, external air enters the heat exchange pipe through the starting fan, air exchanges heat with hot flue gas discharged by the smoke exhaust pipe in the conveying process of the heat exchange pipe, heated air is discharged to the inside of the combustion chamber through the air outlet, the heat loss of the fuel for heating combustion air is reduced when the fuel is subjected to primary combustion supporting, a certain amount of fuel residues are accumulated in the ash accumulation chamber, the fan is started, the fan brings the external air into the ash accumulation chamber, and after the air enters the ash accumulation chamber, the air is preferentially heated through waste heat of the fuel residues and then enters the combustion chamber through the grid plate, so that secondary combustion supporting is performed on the fuel, and the purposes of supporting the fuel and avoiding fuel heat loss and waste are achieved.

2. Through the starter motor, make the connecting block drive two cleaning brush and do reciprocating motion along reciprocating screw direction under the spacing of boiler body inner wall, make two cleaning brush the grating both sides of burn-up fuel, realize getting rid of the fuel residue of adhesion on the grating both sides, reach the clearance jam of avoiding on the grating, influence the purpose of the follow-up use of grating.

3. The vibrating motor B drives the bottom of the connecting rod to vibrate the fuel at the blanking pipe of the storage hopper, so that the fuel continuously falls into the spiral feeder, the fuel is discharged to the surface of the stripper plate under the action of the spiral feeder, and the fuel falling onto the stripper plate is dispersed under the action of the vibrating motor A and the shunt strip, so that the fuel uniformly falls onto the surface of the grid plate under the action of gravity in the process of driving the mounting frame and the stripper plate to reciprocate by the electric hydraulic cylinder, and the purposes of facilitating full combustion of the fuel and uniform heating of the bottom of the boiler are realized.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

FIG. 2 is a schematic diagram showing the overall structure distribution of the present invention.

Fig. 3 is a partial cross-sectional view of the present invention.

Fig. 4 is a partial side cross-sectional view of the present invention.

FIG. 5 is a schematic view of a cleaning assembly according to the present invention.

Fig. 6 is a schematic view of a partial perspective structure of the present invention.

Fig. 7 is a front view of the present invention.

Fig. 8 is a rear view of the present invention.

Reference numerals annotate: 1. a boiler body; 2. a grid plate; 3. an ignition port; 4. a furnace door; 5. a smoke outlet; 6. a combustion supporting mechanism; 7. a heat exchange tube; 8. a blower; 9. an air outlet; 10. a mounting box; 11. an ash deposition chamber; 12. a fan; 13. a mounting frame; 14. a smoke exhaust pipe; 15. a mounting frame; 16. a stripper plate; 17. an electro-hydraulic cylinder; 18. a spring A; 19. a vibration motor A; 20. a shunt strip; 21. cleaning brushes; 22. a connecting block; 23. a reciprocating screw; 24. a motor; 25. a screw feeder; 26. a storage hopper; 27. a support plate; 28. a spring B; 29. a vibration motor B; 30. and (5) connecting a rod.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

Example 1

Referring to fig. 1 to 8, for providing a combustion-supporting slag removal system for a biomass combustion boiler according to an embodiment of the present invention, the combustion-supporting slag removal system includes a boiler body 1, a grid 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 provided on the boiler body 1, and the combustion-supporting slag removal system further includes:

The combustion-supporting mechanism 6, combustion-supporting mechanism 6 includes heat exchange tube 7, fan 8, air outlet 9 and secondary combustion-supporting subassembly, boiler body 1 one side fixedly connected with install bin 10, fan 8 fixed mounting is inside install bin 10, install bin 10 and fan 8 exhaust pipe one end fixed connection are passed to heat exchange tube 7 one end, air outlet 9 is seted up in boiler body 1 one side, and correspond with the combustion chamber at grid board 2 top, the one end that boiler body 1 was kept away from to air outlet 9 and fan 8 air supply pipe one end fixed communication, secondary combustion-supporting subassembly includes deposition room 11 and fan 12.

Preferably, the dust collecting chamber 11 is fixedly arranged at the bottom of the boiler body 1 and fixedly communicated with the bottom in the boiler body 1, one side of the dust collecting chamber 11 is hinged with a dust blocking door for protection, the bottom in the dust collecting chamber 11 is fixedly connected with a dust guiding block inclined towards the dust blocking door, one end of the dust guiding block, which is close to the fan 12, is lower than the bottom of the mounting frame 13, and the fan 12 is fixedly arranged at the top of one side, which is far away from the dust blocking door, of the dust collecting chamber 11 through the mounting frame 13. The purpose of this kind of setting is that the realization is brought into the deposition room 11 through fan 12 with outside air, makes the air get into the combustion chamber through the grating 2 after the waste heat heating of fuel residue first, reaches the secondary combustion-supporting to the fuel to through the setting of leading the ash piece, make the gathering of fuel ashes to ash blocking door department, be convenient for the exhaust purpose.

Preferably, the outside of the smoke outlet 5 is fixedly communicated with a smoke outlet 14, the smoke outlet 14 and the heat exchange tube 7 are all arranged as semicircle tubes, the heat exchange tube 7 and the semicircle end face of the smoke outlet 14 are all arranged as heat conducting plates and are fixedly connected with each other, and the smoke outlet of the smoke outlet 14 and the air inlet of the heat exchange tube 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 tube 7 through the smoke exhaust tube 14, thereby achieving the purpose of utilizing the waste heat of the smoke.

In the embodiment of the invention, biomass fuel is uniformly fed to the surface of the grid plate 2 through the action of the blanking component and the discharging mechanism, hot flue gas is discharged through the smoke exhaust pipe 14 in the fuel combustion process, external air enters the heat exchange pipe 7 through the starting fan 8 in the hot flue gas discharging process, air exchanges heat with the hot flue gas discharged by the smoke exhaust pipe 14 in the conveying process in the heat exchange pipe 7, the heated air is discharged into the combustion chamber through the air outlet 9, the fuel is subjected to primary combustion supporting, the heat loss of the fuel for additionally heating the combustion air is reduced, after a certain amount of fuel residues are accumulated in the ash accumulation chamber 11, the fan 12 is started, the fan 12 brings the external air into the ash accumulation chamber 11, and after the air enters the ash accumulation chamber 11, the air is preferentially heated through the waste heat of the fuel residues and then enters the combustion chamber through the grid plate 2, so that the secondary combustion supporting is realized, and the purposes of supporting the fuel and avoiding the heat loss and the waste of the fuel are achieved.

Example 2

Referring to fig. 1 to 8, as an embodiment of the present invention, a cleaning assembly is disposed on one side of the grating plate 2 near the furnace door 4, the cleaning assembly includes two cleaning brushes 21, a connection block 22, a reciprocating screw 23 and a motor 24, the cleaning brushes 21 are symmetrically distributed along the middle of the grating plate 2, one ends of the two cleaning brushes 21 are slidably connected with the inner wall of a chute formed on the inner wall of the boiler body 1, the other ends of the two cleaning brushes 21 are fixedly connected through the connection block 22, the reciprocating screw 23 passes through the connection block 22 and is in threaded connection with the connection block 22, two ends of the reciprocating screw 23 pass through two sides of the boiler body 1 and are rotatably connected with the boiler body 1, the motor 24 is fixedly mounted on the outer side of the boiler body 1, and one end of an output shaft of the motor 24 is fixedly connected with one end of the reciprocating screw 23.

Preferably, the lengths of the two cleaning brushes 21 are consistent with the width of the grid plate 2, and one sides of the bristles on the two cleaning brushes 21 are respectively in abutting connection with the upper surface and the lower surface of the grid plate 2. The purpose of this arrangement is to achieve the purpose of thoroughly cleaning the upper and lower surfaces of the grating plate 2 by the cleaning brush 21.

In the embodiment of the invention, the motor 24 is started to drive the two cleaning brushes 21 to reciprocate along the direction of the reciprocating screw rod 23 under the limit of the inner wall of the boiler body 1 by the connecting block 22, so that the two cleaning brushes 21 brush the two sides of the fuel-burnt grating plate 2, thereby removing the fuel residues adhered on the two sides of the grating plate 2, and achieving the purpose of avoiding the clearance blockage on the grating plate 2 and influencing the subsequent use of the grating plate 2.

Example 3

Referring to fig. 1 to 8, an automatic feeding device for a biomass combustion boiler according to an embodiment of the present invention includes: the unloading mechanism comprises a mounting frame 15, an unloading plate 16, an electric hydraulic cylinder 17 and a vibration component, wherein a feed inlet is formed in one side of a boiler body 1 at the top of an air outlet 9, one end of the mounting frame 15 penetrates through the feed inlet and is in sliding connection with the boiler body 1, the unloading plate 16 is attached to the inner wall of the mounting frame 15 and is obliquely arranged towards one side of the feed inlet, one end, close to the feed inlet, of the unloading plate 16 is rotationally connected with two sides of the mounting frame 15, the electric hydraulic cylinder 17 is fixedly connected with the mounting box 10, one end of an output shaft of the electric hydraulic cylinder 17 is fixedly connected with one side, far away from the feed inlet, of the mounting frame 15, a plurality of shunt strips 20 are fixedly connected with one end surface, close to the feed inlet, of the unloading plate 16, and the vibration component comprises a spring A18 and a vibration motor A19.

Preferably, the vibrating motor A19 is fixedly installed at the bottom of one end of the stripper plate 16 far away from the shunt strip 20, two springs A18 are arranged and symmetrically distributed along the middle of the vibrating motor A19, and two ends of the two springs A18 are respectively and elastically connected with the bottom of one end of the mounting frame 15 and the bottom of one end of the stripper plate 16. The purpose of this kind of setting is that the realization is through vibrating motor A19 drive stripper 16 vibration, reaches the purpose of being convenient for to falling to the fuel on the stripper 16 and disperses.

Preferably, a plurality of flow dividing strips 20 are symmetrically distributed along the middle part of the stripper plate 16, a group of flow dividing strips 20 corresponding to two sides of the middle part of the stripper plate 16 are splayed, and the flow dividing strips 20 are cylindrical strips. The purpose of this arrangement is to achieve a secondary dispersion of fuel by the arrangement of the flow dividing strips 20.

Preferably, the unloading mechanism top is provided with the unloading subassembly, and the unloading subassembly includes screw feeder 25 and storage hopper 26, and screw feeder 25 fixed mounting is inside install bin 10, and storage hopper 26 fixed mounting is at install bin 10 top, and storage hopper 26 bottom unloading pipe passes install bin 10 and screw feeder 25 feed inlet fixed communication, and screw feeder 25 discharge gate corresponds with stripper 16 top, and the storage hopper 26 bottom sets up to the chamfer platform. The purpose of this arrangement is to achieve the purpose of feeding fuel inside the storage hopper 26 to the stripper plate 16 by means of the screw feeder 25.

Preferably, one side of the top of the storage hopper 26 is fixedly connected with a supporting plate 27, the bottom of the supporting plate 27 is elastically connected with a vibrating motor B29 through a plurality of springs B28, the bottom of the vibrating motor B29 is fixedly connected with a connecting rod 30, and the bottom of the connecting rod 30 is provided with a conical head and extends to the blanking pipe at the bottom of the storage hopper 26. The purpose of this kind of setting is that the conical head that realizes driving connecting rod 30 one end through vibrating motor B29 vibrates storage hopper 26 unloading pipe department, reaches the purpose that avoids storage hopper 26 unloading pipe department to block up.

In the embodiment of the invention, the bottom of the connecting rod 30 is driven by the vibrating motor B29 to vibrate the fuel at the discharging pipe of the storage hopper 26, so that the fuel continuously falls into the screw feeder 25, the fuel is discharged to the surface of the stripper plate 16 under the action of the screw feeder 25, and then the fuel falling onto the stripper plate 16 is driven by the vibrating motor A19 and the action of the flow dividing strip 20 to be dispersed, so that the fuel uniformly falls onto the surface of the grid plate 2 under the action of gravity in the process of driving the mounting frame 15 and the stripper plate 16 to reciprocate by the electro-hydraulic cylinder 17, and the purposes of facilitating full combustion of the fuel and uniform heating of the bottom of the boiler are realized.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims (10)

1. The utility model provides a combustion-supporting slag removal system of biomass combustion boiler, includes boiler body (1), inside fixed mounting of boiler body (1) has a board (2), be provided with on boiler body (1) ignition mouth (3), furnace gate (4) and exhaust port (5), its characterized in that still includes:

combustion-supporting mechanism (6), combustion-supporting mechanism (6) include heat exchange tube (7), fan (8), air outlet (9) and secondary combustion-supporting subassembly, boiler body (1) one side fixedly connected with install bin (10), fan (8) fixed mounting is inside install bin (10), heat exchange tube (7) one end is passed install bin (10) and fan (8) exhaust line one end fixed connection, air outlet (9) are seted up in boiler body (1) one side, and correspond with the combustion chamber at grid board (2) top, the one end and fan (8) air supply pipeline one end fixed communication of boiler body (1) are kept away from to air outlet (9), secondary combustion-supporting subassembly includes deposition room (11) and fan (12).

2. The biomass combustion boiler combustion-supporting slag removal system according to claim 1, wherein the ash accumulation chamber (11) is fixedly arranged at the bottom of the boiler body (1) and fixedly communicated with the bottom in the boiler body (1), an ash blocking door for protection is hinged to one side of the ash accumulation chamber (11), an ash guide block inclined to the ash blocking door is fixedly connected to the bottom in the ash accumulation chamber (11), one end of the ash guide block, which is close to the fan (12), is lower than the bottom of the mounting frame (13), and the fan (12) is fixedly arranged at the top of one side, which is far away from the ash blocking door, of the ash accumulation chamber (11) through the mounting frame (13).

3. The biomass combustion boiler combustion-supporting slag removal system according to claim 1, wherein a smoke exhaust pipe (14) is fixedly communicated with the outer side of the smoke exhaust port (5), the smoke exhaust pipe (14) and the heat exchange pipe (7) are both arranged as semicircle pipes, the heat exchange pipe (7) and the semicircle end faces of the smoke exhaust pipe (14) are both arranged as heat conducting plates and are fixedly connected with 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 directions away from the boiler body (1) and the installation box (10).

4. The biomass combustion boiler combustion-supporting slag removal system according to claim 1, wherein one side of a grating plate (2) close to a furnace door (4) is provided with a cleaning assembly, the cleaning assembly comprises two cleaning brushes (21), two connecting blocks (22), a reciprocating screw (23) and a motor (24), the two cleaning brushes (21) are symmetrically distributed along the middle part of the grating plate (2), one end of each cleaning brush (21) is in sliding connection with the inner wall of a chute formed in the inner wall of a boiler body (1), the other ends of the two cleaning brushes (21) are fixedly connected through the connecting blocks (22), the reciprocating screw (23) penetrates through the connecting blocks (22) and is in threaded connection with the connecting blocks (22), two ends of each reciprocating screw (23) penetrate through two sides of the boiler body (1) and are in rotary connection with the boiler body (1), the motor (24) is fixedly installed on the outer side of the boiler body (1), and one end of an output shaft of the motor (24) is fixedly connected with one end of each reciprocating screw (23).

5. The combustion-supporting slag removal system of a biomass combustion boiler according to claim 4, wherein the lengths of the two cleaning brushes (21) are consistent with the width of the grid plate (2), and one sides of bristles on the two cleaning brushes (21) are respectively in abutting connection with the upper surface and the lower surface of the grid plate (2).

6. An automatic feeding device for a biomass burning boiler, comprising: the discharging mechanism comprises a mounting frame (15), a discharging plate (16), an electric hydraulic cylinder (17) and a vibration assembly, wherein a feed inlet is formed in one side of a boiler body (1) at the top of an air outlet (9), one end of the mounting frame (15) penetrates through the feed inlet and is in sliding connection with the boiler body (1), the discharging plate (16) is attached to the inner wall of the mounting frame (15) and is obliquely arranged towards one side of the feed inlet, one end, close to the feed inlet, of the discharging plate (16) is rotationally connected with two sides of the mounting frame (15), the electric hydraulic cylinder (17) is fixedly connected with a mounting box (10), one end of an output shaft of the electric hydraulic cylinder (17) is fixedly connected with one side, far away from the feed inlet, of the discharging plate (16) is fixedly connected with a plurality of shunt bars (20) close to one end surface of the feed inlet, and the vibration assembly comprises a spring A (18) and a vibration motor A (19).

7. The automatic feeding device for the biomass combustion boiler according to claim 6, wherein the vibrating motor A (19) is fixedly installed at the bottom of one end of the stripper plate (16) far away from the flow dividing strip (20), two springs A (18) are arranged and symmetrically distributed along the middle of the vibrating motor A (19), and two ends of the two springs A (18) are respectively elastically connected with the bottom of one end of the installation frame (15) and the bottom of one end of the stripper plate (16).

8. The automatic feeding device of a biomass combustion boiler according to claim 7, wherein a plurality of the flow dividing strips (20) are symmetrically distributed along the middle of the stripper plate (16), a group of flow dividing strips (20) corresponding to two sides of the middle of the stripper plate (16) are splayed, and the flow dividing strips (20) are arranged to be cylindrical strips.

9. The automatic feeding device of a biomass combustion boiler according to claim 6, wherein a discharging assembly is arranged at the top of the discharging mechanism and comprises a spiral feeder (25) and a storage hopper (26), the spiral feeder (25) is fixedly arranged inside a mounting box (10), the storage hopper (26) is fixedly arranged at the top of the mounting box (10), a discharging pipe at the bottom of the storage hopper (26) penetrates through the mounting box (10) to be fixedly communicated with a feeding hole of the spiral feeder (25), a discharging hole of the spiral feeder (25) corresponds to the top of a discharging plate (16), and the bottom of the storage hopper (26) is arranged into an inverted prismatic table shape.

10. The automatic feeding device of a biomass combustion boiler according to claim 9, wherein a supporting plate (27) is fixedly connected to one side of the top of the storage hopper (26), a vibrating motor B (29) is elastically connected to the bottom of the supporting plate (27) through a plurality of springs B (28), a connecting rod (30) is fixedly connected to the bottom of the vibrating motor B (29), and the bottom of the connecting rod (30) is provided with a conical head and extends to a blanking pipe at the bottom of the storage hopper (26).