Automatic feeding device for biomass combustion boiler

Abstract

The invention relates to the technical field of combustion boiler devices, in particular to an automatic feeding device for a biomass combustion boiler, which comprises a support frame, a crushing cylinder is fixedly mounted at the inner end of the support frame through bolts, a conveying device for conveying crushed biomass is arranged on the right side of the support frame, and a discharging pipe is arranged below the crushing cylinder. A conical shell is fixedly mounted at the inner end of the crushing cylinder; a material conveying cylinder is fixedly mounted at one end, close to the inner cylinder, of the conical shell; a driving rod is arranged at the inner end of the material conveying cylinder; a launching tube is fixedly mounted on the outer surface of the material conveying cylinder; biomass flowing out of the discharge port in the outer surface of the force storage cover collides with biomass in the transmitting pipe, so that the falling potential energy of the biomass can be reduced, the hang time is prolonged, the heating time of the biomass energy can be prolonged, and the heating efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of combustion boiler devices, in particular to an automatic feeding device for a biomass combustion boiler. Background Art

[0002] Biomass fuel: refers to the burning of biomass materials as fuel, generally mainly agricultural and forestry waste (such as straw, sawdust, bagasse, rice bran, etc.), mainly different from fossil fuels. Under the current national policies and environmental protection standards, direct combustion of biomass is a high-pollution fuel and is only used in large stoves in rural areas and is not allowed to be used in cities. The application of biomass fuel is actually mainly biomass molded fuel, which uses agricultural and forestry waste as raw materials, and is made into various shapes (such as blocks, granules, etc.) through processes such as crushing, mixing, extrusion, and drying. It is a new type of clean fuel that can be directly burned.

[0003] After searching, it was found that the prior art publication number is CN109253465A, which discloses a boiler feeding device for biomass power generation. The technical problem to be solved by this scheme is to provide a boiler feeding device for biomass power generation that can automatically feed, ensure the feeding speed, and can break up the fuel to improve the fuel combustion rate. A boiler feeding device for biomass power generation includes a support frame, a feed barrel, a feed hopper, a first bearing seat, a first rotating shaft, a rotating plate, a first bevel gear, a mounting plate, a motor, a second bearing seat, a second rotating shaft, a second bevel gear, a hollow rod, an elastic member, a connecting block, a collision block and a boiler body; the bottom of the feed barrel is fixedly connected to a support frame, and one end is fixedly connected to a feed hopper. This scheme ensures the feeding speed through automatic feeding, and can break up the fuel to improve the fuel combustion rate.

[0004] Therefore, based on the above search and combined with the existing technology, this scheme improves the combustion efficiency by breaking up the materials. The long-term accumulation of materials in the feed hopper will cause the water vapor to continue to increase. Long-term use will cause insufficient combustion temperature, which is easy to cause incomplete combustion and produce a large amount of smoke and particles. The smoke not only pollutes the air, but also harms human health. For this reason, we propose an automatic feeding device for biomass combustion boilers. Summary of the invention

[0005] The object of the present invention is to provide an automatic feeding device for a biomass combustion boiler to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic feeding device for a biomass combustion boiler, comprising a support frame, a crushing barrel is fixedly installed on the inner end of the support frame by bolts, a conveying device for transmitting the crushed biomass is arranged on the right side of the support frame, a discharge pipe is arranged below the crushing barrel, the discharge port of the discharge pipe is parallel to the conveying device, a stabilizing cover is rotatably installed on the inner end of the crushing barrel, a grinding disc for primary crushing of the biomass is fixedly installed on the upper end of the stabilizing cover, and a grinding disc for primary crushing of the biomass is fixedly installed on the lower end of the stabilizing cover An inner cylinder is fixedly installed, and a reamer is fixedly installed on the outer surface of the inner cylinder. When the inner cylinder rotates, the biomass is crushed more finely by the reamer on the outer surface. A cone shell is fixedly installed on the inner end of the crushing cylinder, and the cone shell is located below the inner cylinder. A feed cylinder is fixedly installed on one end of the cone shell close to the inner cylinder, and a driving rod is provided at the inner end of the feed cylinder, and the driving rod is rotatably connected to the cone shell. Launch tubes are fixedly installed on both sides of the outer surface of the feed cylinder, and an injection device for ejecting the biomass in the feed cylinder is provided inside the launch tube.

[0007] As a further solution of the present invention, a spiral rod for transporting the biomass between the crushing cylinder and the inner cylinder to the feed cylinder is fixedly installed on the upper end of the driving rod, and the spiral rod is located in the feed cylinder. A stabilizing rod is fixedly installed on the bottom end of the stabilizing cover, and a force storage cover is sleeved on the outer surface of the stabilizing rod, and a plurality of discharge ports are opened on the outer surface of the force storage cover, and an abutment spring is sleeved on the outer surface of the stabilizing rod, and the force storage cover is squeezed by the abutment spring to ensure that a downward force is always maintained on the force storage cover.

[0008] As a further solution of the present invention, passive teeth are fixedly installed on the bottom end of the power storage cover, and stable teeth are fixedly installed on the upper end of the feeding cylinder, and the passive teeth and the stable teeth are engaged with each other.

[0009] As a further solution of the present invention, the injection device includes an ejection block, which is slidably installed on the inner end of the launch tube, a sealing cover is rotatably installed on the upper end of the launch tube, a storage tube is fixedly installed on the inner end of the feed barrel, the storage tube and the launch tube are parallel to each other, and an abutment rod is slidably installed on the inner end of the storage tube.

[0010] As a further solution of the present invention, one end of the abutment rod close to the launching tube extends outside the feeding tube, and a rectangular opening is opened at the upper end of the launching tube, and a passive block is arranged in the rectangular opening.

[0011] As a further solution of the present invention, the passive block is slidably connected to the launching tube, the upper end of the passive block is slidably connected to the abutment rod, and a blocking plate is fixedly installed on the bottom end of the passive block, which disconnects the launching tube and the feeding barrel from each other to achieve non-interference in force transmission.

[0012] As a further solution of the present invention, a connecting head is fixedly installed at the front end of the above-mentioned ejection block, and a strip opening is opened at the front end of the launching tube, and the connecting head is located in the strip opening, and the connecting head on the right side of the feeding barrel and the abutting rod on the left side of the feeding barrel are fixedly connected by a traction line.

[0013] As a further solution of the present invention, a stabilizing plate is fixedly installed at the inner end of the launch tube, the stabilizing plate is located on the right side of the ejection block, and a through hole is opened at the center of the stabilizing plate, a movable block is arranged in the through hole, and a locking pin is arranged on the right side of the movable block, and the locking pin can lock the sealing cover to prevent the sealing cover from popping open prematurely due to excessive pressure.

[0014] As a further solution of the present invention, a trigger rod is fixedly installed on the outer surface of the power storage cover, and a triangular block is fixedly installed on one end of the trigger rod close to the locking pin, and the outer surface of the triangular block abuts against the inner end of the locking pin.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. When the present invention is in use, the biomass flowing out of the discharge port on the outer surface of the energy storage cover collides with the biomass between the launch tubes, so that the falling potential energy of the biomass can be reduced, the air retention time can be prolonged, and the crushed materials can be scattered in a spraying state. In this way, not only can the materials have more heating time, but also the materials can be scattered very dispersedly and have a larger contact area with the air, so as to achieve the purpose of drying, and then realize that the biomass can prolong the heating time, so that the heating efficiency is greatly improved;

[0017] 2. When the present invention is used, the inner cylinder is heated to evaporate the water vapor inside the crushed biomass, so that the fuel can reach a high temperature more easily, thereby improving the combustion efficiency;

[0018] 3. When the present invention is used, the biomass is crushed twice to make the biomass particles more uniform, thereby reducing the risk of incomplete combustion and reducing the emission of unburned matter and pollutants in the flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an automatic feeding device for a biomass combustion boiler;

[0020] Figure 2 It is a schematic diagram of the structure inside the grinding cylinder;

[0021] Figure 3 It is a schematic diagram of the structure inside the inner cylinder;

[0022] Figure 4 It is a schematic diagram of the structure inside the feeding tube;

[0023] Figure 5It is a structural schematic diagram of the position relationship between the feeding barrel and the power storage cover;

[0024] Figure 6 is a schematic diagram of the structure of the injection device;

[0025] Figure 7 This is a schematic diagram of the structure inside the launch tube;

[0026] Figure 8 This is a schematic diagram of the disassembled structure of the launch tube;

[0027] Fig. 9 It is a schematic diagram of the enlarged structure of the ejection block.

[0028] In the figure: 1. Support frame; 2. Drive motor; 3. Chain; 4. Drive shaft; 5. Crushing cylinder; 6. Transport motor; 7. Discharge pipe; 8. Conveying device;

[0029] 101, grinding disc; 102, stabilizing cover; 103, inner cylinder; 104, cone shell; 105, driving rod; 106, spiral rod;

[0030] 201, feeding cylinder; 202, power storage cover; 203, stabilizing rod; 204, abutting spring; 205, trigger rod; 206, sealing plate; 207, passive teeth; 208, stabilizing teeth; 209, protective ring; 210, storage tube;

[0031] 301, launching tube; 302, traction line; 303, sealing cover; 304, abutment rod; 305, connector; 306, passive block; 307, blocking plate; 308, ejection block; 309, return spring; 310, spiral head; 311, movable block; 312, locking pin; 313, stabilizing plate; 314, slide groove. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example 1: Please refer to Figures 1 to 3An automatic feeding device for a biomass combustion boiler includes a support frame 1, a crushing barrel 5 is fixedly installed on the inner end of the support frame 1 by bolts, a conveying device 8 for transmitting the crushed biomass is arranged on the right side of the support frame 1, and the conveying device 8 is an existing mature technology, which will not be described in detail here. A discharge pipe 7 is arranged below the crushing barrel 5, and the discharge port of the discharge pipe 7 is parallel to the conveying device 8. Specifically, the discharge port of the discharge pipe 7 is located above the conveyor belt in the conveyor 8, and the crushed biomass flowing out of the discharge pipe 7 can directly fall onto the conveyor belt. A stabilizing cover 1 is rotatably installed on the inner end of the crushing barrel 5. 02, a grinding disc 101 for primary crushing of biomass is fixedly installed on the upper end of the stable cover 102, a plurality of cutters are fixedly installed on the upper end of the grinding disc 101, and a plurality of holes of uniform size are also opened on the upper end of the grinding disc 101. The biomass can only pass through the grinding disc 101 to the lower part of the grinding disc 101 after being ground to the same size as the holes on the upper part of the grinding disc 101. A driving motor 2 is fixedly installed on the upper end of the support frame 1 by bolts, a driving shaft 4 is fixedly installed on the upper end of the stable cover 102, and driving wheels are fixedly installed on the upper ends of the driving motor 2 and the driving shaft 4, and a chain 3 is tensioned and sleeved between the two driving wheels;

[0034] An inner cylinder 103 is fixedly installed at the lower end of the stabilizing cover 102, and a reamer is fixedly installed on the outer surface of the inner cylinder 103. When the inner cylinder 103 rotates, the reamer on the outer surface crushes the biomass more finely. A cone shell 104 is fixedly installed at the inner end of the crushing cylinder 5. The cone shell 104 is located below the inner cylinder 103. A feed cylinder 201 is fixedly installed at one end of the cone shell 104 close to the inner cylinder 103. Specifically, a driving rod 105 is provided at the inner end of the feed cylinder 201. The driving rod 105 is rotatably connected to the cone shell 104. Launch tubes 301 are fixedly installed on both sides of the outer surface of the feed cylinder 201. An injection device for ejecting the biomass in the feed cylinder 201 is provided inside the launch tube 301.

[0035] Specifically, a transport motor 6 is fixedly installed at the bottom end of the support frame 1 by bolts, and the output end of the transport motor 6 is fixedly connected to the driving rod 105;

[0036] More specifically, a plurality of strong magnets (not shown in the figure) are fixedly installed at the inner end of the grinding cylinder 5, and the strong magnets are arranged in a ring array inside the grinding cylinder 5, and the directions of the strong magnets are staggered. The inner cylinder 103 is made of iron material, so when the inner cylinder 103 rotates, it is affected by the staggered strong magnets inside the grinding cylinder 5, and the magnetic field inside the inner cylinder 103 changes continuously, and eddy currents (i.e., circular currents) are induced inside the metal. Since the metal has electrical resistance, when these eddy currents flow in the metal, they will generate heat due to the presence of resistance, thereby heating the chamber of the inner cylinder 103.

[0037] Example 2: Please refer to Figure 4 , 56. An automatic feeding device for a biomass combustion boiler, based on Example 1, a screw rod 106 for transporting the biomass between the crushing cylinder 5 and the inner cylinder 103 to the feeding cylinder 201 is fixedly installed on the upper end of the driving rod 105, and the screw rod 106 is located in the feeding cylinder 201, and a material port is opened at one end of the feeding cylinder 201 close to the cone shell 104, so that the biomass can be transported into the feeding cylinder 201 by the screw rod 106, and a stabilizing ring is fixedly installed on the upper end of the screw rod 106, and the stabilizing ring is in contact with the inner wall of the feeding cylinder 201, so as to avoid shaking when the screw rod 106 rotates to transport the biomass. Specifically, a sealing plate 206 is fixedly installed on the outer surface of the feeding cylinder 201, and the sealing plate 206 is rotatably connected to the inner wall of the inner cylinder 103. More specifically, the discharge pipe 7 passes through the cone shell 104 and is fixedly connected to the sealing plate 206, so that the biomass inside the inner cylinder 103 can flow out through the discharge pipe 7;

[0038] A stabilizing rod 203 is fixedly installed at the bottom end of the stabilizing cover 102, and a force storage cover 202 is sleeved on the outer surface of the stabilizing rod 203, and a plurality of discharge ports are opened on the outer surface of the force storage cover 202, and abutting springs 204 are sleeved on the outer surface of the stabilizing rod 203, and the upper end of the abutting springs 204 abuts against the bottom end of the stabilizing cover 102, and the lower end abuts against the upper end of the force storage cover 202, and a passive tooth 207 is fixedly installed at the bottom end of the force storage cover 202, and a stabilizing tooth 208 is fixedly installed at the upper end of the feeding cylinder 201, and a protective ring 209 is fixedly installed at the inner end of the stabilizing tooth 208, and the passive tooth 207 is fixedly installed at the bottom end of the force storage cover 202. 07 and the stable teeth 208 are engaged with each other, and when the passive teeth 207 and the stable teeth 208 are fully engaged, the protective ring 209 blocks the discharge port on the outer surface of the energy storage cover 202. Specifically, when the biomass inside the feeding barrel 201 continues to accumulate and rise, it will squeeze the energy storage cover 202 to move upward, and the protective ring 209 will no longer block the discharge port on the outer surface of the energy storage cover 202. The abutment spring 204 is compressed. When the passive teeth 207 and the stable teeth 208 reach the apex, the compressed abutment spring 204 releases its elastic force to press the energy storage cover 202 downward.

[0039] See also Figure 4 , 6 7. The injection device includes an ejection block 308, which is slidably mounted on the inner end of the launch tube 301. A sealing cover 303 is rotatably mounted on the upper end of the launch tube 301. A storage tube 210 is fixedly mounted on the inner end of the feed tube 201. The storage tube 210 and the launch tube 301 are parallel to each other. An abutment rod 304 is slidably mounted on the inner end of the storage tube 210. Specifically, a rectangular bar is fixedly mounted on the outer surface of the abutment rod 304. A rectangular groove is provided at the inner end of the storage tube 210. The rectangular bar is located in the rectangular groove, which effectively prevents the abutment rod 304 from sliding left and right in the storage tube 210 to avoid self-rotation. One end of the abutment rod 304 close to the launch tube 301 extends to the outside of the feed tube 201.

[0040] A rectangular opening is provided at the upper end of the launch tube 301, and a passive block 306 is provided in the rectangular opening. The passive block 306 is slidably connected to the launch tube 301, and the upper end of the passive block 306 is slidably connected to the abutment rod 304. A blocking piece 307 is fixedly installed at the bottom end of the passive block 306, and the blocking piece 307 has the same diameter as the inner diameter of the launch tube 301. When the passive block 306 moves upward, it drives the blocking piece 307 to move upward. Specifically, the blocking piece 307 is gradually reduced from top to bottom, so that it can be smoothly inserted into the crushed biomass when moving downward, thereby isolating the chamber in the launch tube 301 from the chamber in the feed barrel 201.

[0041] like Figure 7 As shown, more specifically, the abutment rod 304 is gradually reduced from left to right, and the side facing the launch tube 301 is smooth, forming a certain slope. A pulley is rotatably installed on the upper end of the passive block 306, and the pulley contacts the slope surface of the abutment rod 304, so that the sliding process is smoother, and the slope surface of the abutment rod 304 is provided with a rectangular groove, and a clamping block is fixedly installed on one end of the passive block 306 close to the abutment rod 304, and the clamping block is slidably installed in the rectangular groove. When the abutment rod 304 moves to the right, the passive block 306 is squeezed by the slope and moves downward. When the abutment rod 304 moves to the left, the passive block 306 is pulled out under the action of the clamping block and the rectangular groove.

[0042] See also Figure 5 , 8 9. A connector 305 is fixedly installed at the front end of the ejection block 308, and a strip-shaped opening is opened at the front end of the launch tube 301. The connector 305 is located in the strip-shaped opening. The connector 305 on the right side of the feed cylinder 201 is fixedly connected to the abutment rod 304 on the left side of the feed cylinder 201 through a traction line 302, and the connector 305 on the left side of the feed cylinder 201 is also connected to the abutment rod 304 on the right side of the feed cylinder 201 through a traction line 302. The two traction lines 302 are intertwined with each other. When one of the connectors 305 moves to the left, the abutment rod 304 moves to the right, and vice versa.

[0043] A stabilizing plate 313 is fixedly installed at the inner end of the launch tube 301. The stabilizing plate 313 is located on the right side of the ejection block 308. A through hole is opened at the center of the stabilizing plate 313. A movable block 311 is arranged in the through hole. A locking pin 312 is arranged on the right side of the movable block 311. A torsion spring is clamped between the locking pin 312 and the launch tube 301. The locking pin 312 is clamped with the right end of the sealing cover 303.

[0044] The outer surface of the power storage cover 202 is fixedly installed with a trigger rod 205, and the end of the trigger rod 205 close to the locking pin 312 is fixedly installed with a triangular block, and the outer surface of the triangular block abuts against the inner end of the locking pin 312. When the trigger rod 205 moves downward, the locking pin 312 is pushed to rotate by the triangular block, so that the locking pin 312 is no longer engaged with the sealing cover 303. Specifically, an extension block is fixedly installed on the right end of the movable block 311, and the extension block is located at a point away from the center of the circle of the movable block 311. The bottom end of the triangular block contacts the upper end of the extension block (not shown in the figure). When the triangular block moves downward, it pushes the extension block to move downward. When the extension block moves downward, it drives the movable block 311 to rotate.

[0045] The ejection block 308 is connected to the launch tube 301 through a return spring 309, and a spiral head 310 is fixedly installed on the right end of the movable block 311. The spiral head 310 is threadedly connected to the ejection block 308, and the ejection block 308 gradually shrinks from right to left. A chute 314 is provided on the slope surface of the ejection block 308, so that when the ejection block 308 moves quickly toward the direction close to the feed barrel 201, the biomass can be squeezed out along the chute 314 and the slope under the action of the slope of the chute 314 and the chute 314.

[0046] The working principle of the present invention is:

[0047] When in use, the biomass is poured onto the top of the grinding disc 101, and as the driving motor 2 starts to work, the grinding disc 101 is driven to rotate through the chain 3, thereby realizing preliminary shredding of the biomass, and then the hole at the upper end of the grinding disc 101 falls into the chamber between the grinding cylinder 5 and the inner cylinder 103, and as the inner cylinder 103 rotates, the biomass is crushed more finely through the reamer, and then the crushed biomass falls to the upper end of the cone shell 104, and then the transport motor 6 drives the drive rod 105 to rotate, and the drive rod 105 drives the spiral rod 106 to rotate, thereby realizing the transport of the biomass on the cone shell 104 to the feed cylinder 201;

[0048] As the biomass inside the feeding barrel 201 is continuously accumulated, the force storage cover 202 is squeezed to move upward, and then the abutment spring 204 begins to compress. The biomass will first be discharged from the discharge port on the outer surface of the force storage cover 202, and as the force storage cover 202 moves upward, the biomass will follow and enter the storage tube 210, and at the same time, part of the biomass will enter the launch tube 301, squeezing the ejection block 308 to move in the direction away from the feeding barrel 201 and compressing the return spring 309. At this time, as the ejection block 308 moves, it is screwed on the outer surface of the spiral head 310. At this time, the biomass squeezes the abutment rod 304 to move in the direction away from the feeding barrel 201, and then squeezes the blocking plate 307 downward through the passive block 306, and separates the chamber in the launch tube 301 from the chamber in the feeding barrel 201. When the passive teeth 207 and the stable teeth 208 reach the top of each other, the compressed When the locking pin 312 is in the locked state, the locking pin 312 of the sealing cover 303 is locked. Then, as the locking pin 312 of the sealing cover 303 rotates, the spiral head 310 is no longer connected with the ejection block 308. Then, under the action of the return spring 309, the spiral head 310 quickly moves toward the direction close to the feeding barrel 201. Then, the biomass inside the launching tube 301 will be squeezed out along the chute 314 and collide with the biomass ejected from the discharge port of the power storage cover 202, thereby slowing down the falling potential energy and allowing the crushed material to be scattered in a spraying shape. In this way, not only can it have more heating time, but also the material can be scattered very dispersedly and have a larger contact area with the air, thereby achieving the purpose of drying.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed in the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic feeding device for a biomass combustion boiler, comprising a support frame (1), characterized in that: A crushing cylinder (5) is fixedly mounted on the inner end of the support frame (1) by bolts, a conveying device (8) for transmitting crushed biomass is arranged on the right side of the support frame (1), a discharge pipe (7) is arranged below the crushing cylinder (5), the discharge port of the discharge pipe (7) and the conveying device (8) are parallel to each other, a stabilizing cover (102) is rotatably mounted on the inner end of the crushing cylinder (5), a grinding disc (101) for primary crushing of biomass is fixedly mounted on the upper end of the stabilizing cover (102), an inner cylinder (103) is fixedly mounted on the lower end of the stabilizing cover (102), and a reamer is fixedly mounted on the outer surface of the inner cylinder (103), and the inner cylinder (103) is fixedly mounted with a reamer. 3) When rotating, the biomass is crushed more finely by the reamer on the outer surface. The inner end of the crushing cylinder (5) is fixedly installed with a cone shell (104), and the cone shell (104) is located below the inner cylinder (103). The end of the cone shell (104) close to the inner cylinder (103) is fixedly installed with a feeding cylinder (201). The inner end of the feeding cylinder (201) is provided with a driving rod (105), and the driving rod (105) is rotatably connected to the cone shell (104). The outer surface of the feeding cylinder (201) is fixedly installed with a launch tube (301) on both sides, and the inside of the launch tube (301) is provided with an injection device for ejecting the biomass in the feeding cylinder (201).

2. The automatic feeding device for a biomass combustion boiler according to claim 1, characterized in that: A screw rod (106) for transporting the biomass between the crushing cylinder (5) and the inner cylinder (103) to the feeding cylinder (201) is fixedly mounted on the upper end of the driving rod (105); the screw rod (106) is located in the feeding cylinder (201); a stabilizing rod (203) is fixedly mounted on the bottom end of the stabilizing cover (102); a power storage cover (202) is sleeved on the outer surface of the stabilizing rod (203); and a plurality of discharge ports are provided on the outer surface of the power storage cover (202); and a contact spring (204) is sleeved on the outer surface of the stabilizing rod (203).

3. The automatic feeding device for a biomass combustion boiler according to claim 2, characterized in that: The bottom end of the power storage cover (202) is fixedly mounted with passive teeth (207), the upper end of the feed barrel (201) is fixedly mounted with stable teeth (208), and the passive teeth (207) and the stable teeth (208) are engaged with each other.

4. The automatic feeding device for a biomass combustion boiler according to claim 1, characterized in that: The injection device comprises an ejection block (308), wherein the ejection block (308) is slidably mounted on the inner end of a launch tube (301), a sealing cover (303) is rotatably mounted on the upper end of the launch tube (301), a material storage tube (210) is fixedly mounted on the inner end of the feed cylinder (201), the material storage tube (210) and the launch tube (301) are parallel to each other, and an abutment rod (304) is slidably mounted on the inner end of the material storage tube (210).

5. The automatic feeding device for a biomass combustion boiler according to claim 4, characterized in that: One end of the abutment rod (304) close to the launching tube (301) extends outside the feeding cylinder (201), and a rectangular opening is provided at the upper end of the launching tube (301), and a passive block (306) is provided in the rectangular opening.

6. The automatic feeding device for a biomass combustion boiler according to claim 5, characterized in that: The passive block (306) is slidably connected to the launch tube (301), the upper end of the passive block (306) is slidably connected to the abutment rod (304), and the bottom end of the passive block (306) is fixedly mounted with a blocking plate (307).

7. The automatic feeding device for a biomass combustion boiler according to claim 6, characterized in that: A connector (305) is fixedly mounted at the front end of the ejection block (308), and a strip-shaped opening is opened at the front end of the launch tube (301), the connector (305) is located in the strip-shaped opening, and the connector (305) on the right side of the feed cylinder (201) and the abutment rod (304) on the left side of the feed cylinder (201) are fixedly connected via a traction line (302).

8. The automatic feeding device for a biomass combustion boiler according to claim 7, characterized in that: A stabilizing plate (313) is fixedly mounted on the inner end of the launch tube (301), the stabilizing plate (313) is located on the right side of the ejection block (308), a through hole is provided at the center of the stabilizing plate (313), a movable block (311) is provided in the through hole, and a locking pin (312) is provided on the right side of the movable block (311).

9. The automatic feeding device for a biomass combustion boiler according to claim 2, characterized in that: A trigger rod (205) is fixedly mounted on the outer surface of the power storage cover (202), and a triangular block is fixedly mounted on one end of the trigger rod (205) close to the locking pin (312), wherein the outer surface of the triangular block abuts against the inner end of the locking pin (312).

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