A biomass fuel-based combustion boiler apparatus

Abstract

The present application relates to the technical field of biomass combustion furnace, in particular to a kind of combustion boiler equipment based on biomass fuel.The present application relates to the technical field of biomass combustion furnace, in particular to a kind of combustion boiler equipment based on biomass fuel.The present application relates to the technical field of biomass combustion furnace, in particular to a kind of combustion boiler equipment based on biomass fuel.The present application relates to the technical field of biomass combustion furnace, in particular to a kind of combustion boiler equipment based on biomass fuel.The present application relates to the technical field of biomass combustion furnace, in particular to a kind of combustion boiler equipment based on biomass fuel.The present application relates to the technical field of biomass combustion furnace, in particular to a kind of combustion boiler equipment based on biomass fuel.The present application relates to the technical field of biomass combustion furnace, in particular to a kind of combustion boiler equipment based on biomass fuel.The present application relates to the technical field of biomass combustion furnace, in particular to a kind of combustion boiler equipment based on biomass fuel.The present application relates to the technical field of biomass combustion furnace, in particular to a kind of combustion boiler equipment based on biomass fuel.The present application relates to the technical field of biomass combustion furnace, in particular to a kind of combustion boiler equipment based on biomass fuel.The present application relates to the technical field of biomass combustion furnace, in particular to a kind of combustion boiler equipment based on biomass fuel.The present application relates to the technical field of biomass combustion furnace, in particular to a kind of combustion boiler equipment based on biomass fuel.The present application relates to the technical field of biomass combustion furnace, in particular to a kind of combustion boiler equipment based on biomass fuel.The present application relates to the technical field of biomass combustion furnace, in particular to a kind of combustion boiler equipment based on biomass fuel.The present application relates to the technical field of biomass combustion furnace, in particular to a kind of combustion boiler equipment based on biomass fuel.The present application relates to the technical field of biomass combustion furnace, in particular to a kind of combustion boiler equipment based on biomass fuel.The present application relates to the technical field of biomass combustion furnace, in particular to a kind of combustion boiler equipment based on biomass fuel.The present application relates to the technical field of biomass combustion furnace, in particular to a kind of combustion boiler equipment based on biomass fuel.The present application relates to the technical field of biomass combustion furnace, in particular to

Description

Technical Field

[0001] This invention relates to the field of biomass combustion furnace technology, specifically to a combustion boiler device based on biomass fuel. Background Technology

[0002] In recent years, with the increasing awareness of environmental protection and the promotion and application of renewable energy, biomass combustion technology has attracted much attention. In the future, my country's biomass energy utilization is expected to follow a path of large-scale and industrialized development. The government will establish and improve a biomass storage system, conduct pilot demonstrations of biomass, and improve incentive policies to promote the industrialization of biomass utilization.

[0003] As a representative of renewable energy, biomass combustion engines have broad application prospects in the energy sector. Biomass combustion equipment is a new type of thermal energy device that uses biomass materials as its main fuel to generate heat energy through combustion for purposes such as heating and power generation. The working principle of biomass combustion equipment is to put biomass fuel into the combustion chamber, where it is heated and burned to produce high-temperature heat energy. Generally, the combustion chamber of biomass combustion equipment is equipped with ventilation equipment to ensure complete combustion of biomass while reducing the emission of harmful gases.

[0004] Existing biomass combustion equipment also has some shortcomings and deficiencies that require further improvement. For example, the combustion efficiency of biomass combustion equipment is affected by factors such as biomass type, moisture content, and combustion temperature. This is particularly evident because different types of biomass materials have different stacking states in the combustion chamber. When replenishing lumps or rods of biomass fuel of a certain size, it is difficult to ensure that they are evenly distributed throughout the bottom of the combustion chamber at all times. This results in some densely packed areas experiencing slow combustion and failure to generate fuel due to poor ventilation and high fuel density. It can also cause uneven ventilation, with ventilation decreasing when there is more fuel. Achieving uniform fuel distribution and consistently stable ventilation in the combustion chamber will be the key to improving the combustion efficiency of existing biomass combustion equipment. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that existing biomass combustion boiler equipment has the problem that uneven stacking of biomass fuel in the combustion chamber can easily lead to incomplete combustion and unstable ventilation.

[0006] To solve the above problems, the technical solution adopted by the present invention is as follows: a biomass fuel-based combustion boiler device, comprising a furnace body, a feed inlet on one side of the upper part of the furnace body, a feeding mechanism for pre-treating and distributing biomass fuel downwards at the feed inlet in the furnace body; a grate assembly on the lower part of the furnace body, a blower mechanism for ventilating the grate assembly; a combustion chamber between the feeding mechanism and the grate assembly, and a fire outlet on one side of the furnace body facing outwards from the combustion chamber; the grate assembly includes a grate base plate at its top, which is inverted conical in shape, and a plurality of air cap mounting holes are evenly distributed on the grate base plate, each air cap mounting hole having a hollow, vertically movable movable part. The grate includes a wind cap; the movable wind cap has ventilation holes on its side and is closed at both ends, with a limiting end cap for preventing the movable wind cap from detaching; a cylinder is connected to the lower outer side of the grate base, and a closed base is provided at the bottom, with a ventilation chamber between the grate base, cylinder, and base; when the movable wind cap moves upward to the top in the wind cap mounting hole, the ventilation hole communicates with the combustion chamber; when the movable wind cap falls downward to the bottom in the wind cap mounting hole, the ventilation hole communicates with the ventilation chamber; an air inlet is provided on the side wall of the cylinder, communicating with the blower mechanism; a slag discharge mechanism is provided at the center of the grate component, the slag discharge mechanism including a slag discharge port connected to the inverted conical bottom of the grate base, the slag discharge port communicating with the slag discharge channel at the bottom through a downwardly positioned slag discharge cylinder.

[0007] The beneficial effects of this invention are as follows: It is equipped with a movable air cap that can move up and down. In places where the material is tightly packed, the air cap can be pushed out by the wind to loosen and redistribute the material. At the same time, in places where the packing is not serious and there are enough gaps, the movable air cap can extend significantly to ensure sufficient ventilation, ensure complete combustion, and adapt to fuels with different distributions and states.

[0008] As a further improvement of the present invention, the technical problem to be solved is: due to the high moisture content of biomass fuel, the combustion efficiency is poor.

[0009] To solve the above-mentioned technical problems, the present invention further improves the technical solution as follows: the material distribution mechanism includes a material distribution shaft vertically arranged in the upper part of the furnace body, a spiral material passage channel from top to bottom is provided between the material distribution shaft and the inner wall of the furnace body, and the upper part of the spiral material passage channel is connected to the feed port; the upper part of the material distribution shaft is provided with a ventilation self-feedback component for sealing the furnace body, and the top of the material distribution shaft is connected to a material distribution rotary motor arranged outside the furnace body through a transmission component.

[0010] The beneficial effects of the above improvements are as follows: by utilizing the high temperature inside the combustion chamber, the feeding stage is located inside the furnace; on the one hand, the biomass fuel can be preheated and dried, and on the other hand, the rotating feeding mechanism can evenly distribute the biomass fuel throughout the combustion chamber, while the spiral feeding channel can also prevent backfire in the combustion chamber; thus greatly improving the combustion efficiency.

[0011] As a further improvement of the present invention, the technical problem to be solved is that the biomass fuel that has just been fed into the combustion chamber is clumped or entangled, which is not conducive to the realization of a complete combustion process after falling into the combustion chamber.

[0012] To solve the above-mentioned technical problems, the present invention further improves the technical solution as follows: the bottom of the spiral material passage is a material discharge port located directly above the combustion chamber; a material feeding component is provided at the material discharge port, the material feeding component including a material feeding rotating rod arranged horizontally at the material discharge port; material feeding rods extending outward are evenly distributed on the material feeding rotating rod, and the inner end of the material feeding rotating rod is connected and driven by a connecting rod arranged vertically and movably in the material feeding rotating shaft through a material feeding transmission component; the top of the connecting rod is located on a fixed seat outside the furnace body.

[0013] The beneficial effects of the above improvements are as follows: a material feeding component that can rotate and move upward is set at the material feeding port before it falls into the combustion chamber; when the material feeding shaft rotates, it drives the outer end of the material feeding rotating rod to make a circular motion. At this time, the bevel gear transmission mechanism that cooperates with the inner end of the material feeding rotating rod has a fixed connecting rod at the other end; the connecting rod is stationary, and the outer end of the material feeding rotating rod swings, thereby driving the inner end of the material feeding rotating rod to make a rotational motion under the cooperation of the bevel gear transmission mechanism, and finally realizes that the material feeding rod rotates around the axis of the material feeding rotating rod, thus completing the material feeding process.

[0014] As a further improvement of the present invention, the technical problem to be solved is: how the blower mechanism specifically achieves inward ventilation.

[0015] To solve the above-mentioned technical problems, the present invention further improves the technical solution as follows: the blower mechanism includes an annular blower cavity covering the outside of the air inlet, the inner wall of the annular blower cavity is provided with a blower surface for connecting the air inlet, and the annular blower cavity is connected to a blower located outside the furnace body.

[0016] The beneficial effects of the above improvements are as follows: the setting of the blower surface ensures that the airflow generated by the blower can always reach the outside of the movable hood through the air inlet, thereby providing air pressure to the movable hood and driving it to move upward.

[0017] As a further improvement of the present invention, the technical problem to be solved is: how to provide adaptive adjustment of the air volume supply for different amounts of fuel due to the situation that the fuel supply is not completely uniform.

[0018] To solve the above-mentioned technical problems, the present invention further improves upon the following technical solution: a ventilation self-feedback component is provided on the grate component; the ventilation self-feedback component includes a sliding rod located below the base, and a sliding cylinder that can move up and down is sleeved on the outside of the sliding rod, the bottom of the sliding cylinder being fixedly connected to the furnace body; a compression spring for reset buffering is sleeved on the outside of the sliding rod and the sliding cylinder between the bottom of the sliding cylinder and the base; a sealing ring edge for sealing the air blowing surface is provided at the lower part of the cylinder; the slag discharge cylinder includes an inner cylinder and an outer cylinder, the inner cylinder being connected to the base, and the outer cylinder being connected to the bottom of the furnace body.

[0019] The beneficial effects of the above improvements are as follows: the amount of biomass fuel in the combustion chamber will be directly reflected in the weight falling on the grate; the ventilation self-feedback component will use this weight to compress the spring and drive the entire grate to move downward, thereby increasing the area of ​​the air inlet and the blower surface on the cylinder, thus increasing the air intake and accommodating more fuel weight. Conversely, under the rebound of the spring, the ventilation volume at the air inlet will be reduced.

[0020] As a further improvement of the present invention, the technical problem to be solved is: how to further adjust and control the movable hood.

[0021] To solve the above-mentioned technical problems, the present invention further improves upon the following technical solution: An air cap adjusting component is provided below the movable air cap of the grate assembly; the air cap adjusting component includes an annular stepped limiting plate disposed below the grate base and at the same distance from the bottom of all movable air caps; a vertically movable support cylinder is provided at the bottom of the annular stepped limiting plate on the outside of the slag discharge cylinder; a thread is provided on the outer wall of the slag discharge cylinder below the support cylinder; and an adjusting screw sleeve that engages with the thread is provided directly below the support cylinder.

[0022] The beneficial effects of the above improvements are as follows: the lower limit of the air intake of the movable hood can be adjusted by the hood adjustment component; the lowest position of the movable hood is limited by the annular stepped limiting plate that can support the bottom of the movable hood, ensuring that at least a part of the movable hood can be forcibly pushed out even in the absence of wind; and the height of the annular stepped limiting plate can be adjusted by the adjusting screw sleeve that can move up and down spirally to push the support cylinder.

[0023] As a further improvement of the present invention, the technical problem to be solved is that biomass fuel falls directly into the ash collection cylinder without being burned, which easily causes unnecessary waste of fuel.

[0024] To solve the above-mentioned technical problems, the present invention further improves the technical solution by providing a hemispherical baffle cover above the slag discharge port of the slag discharge mechanism; and providing a slag passage on the side of the baffle cover for connecting the combustion chamber and the slag discharge cylinder.

[0025] The beneficial effects of the above improvements are: the setting of the baffle cover and the slag discharge port can prevent biomass fuel from falling directly into the slag discharge cylinder without combustion, thus avoiding unnecessary waste of fuel.

[0026] As a further improvement of the present invention, the technical problem to be solved is: how to understand the fuel combustion situation in the furnace in real time.

[0027] To solve the above-mentioned technical problems, the present invention further improves the technical solution by providing an observation window on the side wall of the furnace body and connecting the feed port on the furnace body to the auger feeding component.

[0028] The beneficial effects of the above improvements are: the installation of an observation window to observe the internal conditions helps staff to understand the internal combustion status in real time.

[0029] As a further improvement of the present invention, the technical problem to be solved is: how to further optimize the furnace body.

[0030] To solve the above-mentioned technical problems, the present invention further improves the technical solution by providing an insulation layer on the outer wall of the furnace body and a molybdenum-silicon carbide layer on the inner wall of the fire outlet of the feed inlet.

[0031] The beneficial effects of the above improvements are: the furnace body is equipped with an insulation layer to prevent rapid heat loss; and the fire outlet is also equipped with a high-temperature resistant and high-strength molybdenum-silicon carbide material layer. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0033] Figure 2 This is a top view of the structure of the present invention.

[0034] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure of AA.

[0035] Figure 4 for Figure 3 A magnified structural diagram of part C in the middle.

[0036] Figure 5 for Figure 3 A schematic diagram of the cross-sectional structure of BB.

[0037] Figure 6 This is a half-section three-dimensional structural diagram of the grate component 3 in this invention.

[0038] Figure 7 This is a three-dimensional structural diagram of the fabric-making mechanism 2 in this invention.

[0039] Figure 8 This is a three-dimensional structural diagram of the blower mechanism 5 in this invention.

[0040] The text labels in the diagram represent: 1. Furnace body; 2. Charging mechanism; 3. Grate component; 4. Slag discharge mechanism; 5. Blower mechanism; 6. Ventilation self-feedback component; 7. Air cap adjustment component; 8. Screw conveyor component; 11. Feed inlet; 12. Fire outlet; 13. Combustion chamber; 14. Insulation layer; 15. Observation window; 21. Spiral material passage; 22. Charging shaft; 23. Transmission component; 24. Charging rotary motor; 25. Material feeding component; 211. Material discharge port; 251. Material feeding rod; 252. Material feeding rotating rod; 253. Material feeding transmission component; 254. Connecting rod; 255. Fixed base; 31 1. Grate base; 311. Air cap mounting hole; 32. Movable air cap; 321. Ventilation hole; 322. Limiting end cover; 33. Cylinder body; 34. Base; 35. Ventilation chamber; 331. Air inlet; 41. Slag discharge port; 42. Material baffle cover; 421. Slag passage port; 43. Slag discharge cylinder; 431. Inner cylinder; 432. Outer cylinder; 44. Slag discharge channel; 51. Annular blast chamber; 52. Blower surface; 53. Blower; 61. Slide rod; 62. Slide cylinder; 63. Compression spring; 64. Sealing ring edge; 71. Annular stepped limiting plate; 72. Support cylinder; 73. Adjusting screw sleeve; 74. Thread. Detailed Implementation

[0041] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0042] Example 1:

[0043] A biomass fuel-based combustion boiler includes a furnace body 1, with a feed inlet 11 on one side of the upper part of the furnace body 1. A feeding mechanism 2 for pre-treating and distributing biomass fuel downwards is installed at the feed inlet 11 inside the furnace body 1. A grate 3 is mounted on the lower part of the furnace body 1, and a blower mechanism 5 for ventilating the grate 3 is fitted externally to the grate 3. A combustion chamber 13 is located between the feeding mechanism 2 and the grate 3, and a fire outlet 12 is opened outwards on one side of the combustion chamber 13. The grate 3 includes a grate base 31 at its top, which is inverted conical in shape. Multiple air cap mounting holes 311 are evenly distributed on the grate base 31. Movable air caps 32, which are vertically movable and hollow, are installed within the air cap mounting holes 311. Ventilation holes 321 are opened on the sides of the movable air caps 32. The grate is closed at both ends and equipped with a limiting end cap 322 for limiting the release of the movable air cap 32; a cylindrical body 33 is connected to the lower outer side of the grate base 31, and a closed base 34 is provided at the bottom. A ventilation chamber 35 is located between the grate base 31, the cylindrical body 33 and the base 34; when the movable air cap 32 moves to the top in the air cap mounting hole 311, the ventilation hole 321 communicates with the combustion chamber 13; when the movable air cap 32 falls to the bottom in the air cap mounting hole 311, the ventilation hole 321 communicates with the ventilation chamber 35; an air inlet 331 is provided on the side wall of the cylindrical body 33 and communicates with the blower mechanism 5; a slag discharge mechanism 4 is provided at the center of the grate component 3, the slag discharge mechanism 4 includes a slag discharge port 41 that connects to the bottom of the inverted conical shape on the grate base 31, and the slag discharge port 41 is connected to the bottom slag discharge channel 44 through a downwardly arranged slag discharge cylinder 43.

[0044] Example 2:

[0045] As a further optimization of the above embodiments: a biomass fuel-based combustion boiler device includes a furnace body 1, with a feed inlet 11 on one side of the upper part of the furnace body 1. A feeding mechanism 2 for pre-treating and distributing biomass fuel downwards is provided at the feed inlet 11 inside the furnace body 1. The lower part of the furnace body 1 is mounted on a grate 3, and a blower mechanism 5 for ventilating the grate 3 is fitted externally to the grate 3. A combustion chamber 13 is located between the feeding mechanism 2 and the grate 3, and a fire outlet 12 is provided on one side of the combustion chamber 13. The grate 3 includes a grate base 31 at its top, which is inverted conical in shape. Multiple air cap mounting holes 311 are evenly distributed on the grate base 31. Movable air caps 32, which are movable vertically and hollow, are installed within the air cap mounting holes 311. Ventilation is provided on the side of the movable air caps 32. The grate base 31 has a hole 321, which is closed at both the top and bottom and is provided with a limiting end cap 322 for limiting the release of the movable air cap 32; a cylinder 33 is connected to the lower outer side of the grate base 31, and a closed base 34 is provided at the bottom. A ventilation chamber 35 is located between the grate base 31, the cylinder 33 and the base 34; when the movable air cap 32 moves up to the top in the air cap mounting hole 311, the ventilation hole 321 communicates with the combustion chamber 13; when the movable air cap 32 falls down to the bottom in the air cap mounting hole 311, the ventilation hole 321 communicates with the ventilation chamber 35; an air inlet 331 is provided on the side wall of the cylinder 33 and communicates with the blower mechanism 5; a slag discharge mechanism 4 is provided at the center of the grate component 3, and the slag discharge mechanism 4 includes a slag discharge port 41 that connects to the bottom of the inverted conical shape on the grate base 31. The slag discharge port 41 is connected to the slag discharge channel 44 at the bottom through a downwardly arranged slag discharge cylinder 43. The feeding mechanism 2 includes a feeding shaft 22 vertically arranged in the upper part of the furnace body 1. A spiral material passage 21 from top to bottom is provided between the feeding shaft 22 and the inner wall of the furnace body 1. The upper part of the spiral material passage 21 communicates with the feed inlet 11. A ventilation self-feedback component 6 for sealing the furnace body 1 is provided on the upper part of the feeding shaft 22. The top of the feeding shaft 22 is connected to the feeding rotary motor 24 arranged outside the furnace body 1 through a transmission component 23.

[0046] Example 3:

[0047] As a further optimization of the above embodiments: a biomass fuel-based combustion boiler device includes a furnace body 1, with a feed inlet 11 on one side of the upper part of the furnace body 1. A feeding mechanism 2 for pre-treating and distributing biomass fuel downwards is provided at the feed inlet 11 inside the furnace body 1. The lower part of the furnace body 1 is mounted on a grate 3, and a blower mechanism 5 for ventilating the grate 3 is fitted externally to the grate 3. A combustion chamber 13 is located between the feeding mechanism 2 and the grate 3, and a fire outlet 12 is provided on one side of the combustion chamber 13. The grate 3 includes a grate base 31 at its top, which is inverted conical in shape. Multiple air cap mounting holes 311 are evenly distributed on the grate base 31. Movable air caps 32, which are movable vertically and hollow, are installed within the air cap mounting holes 311. Ventilation is provided on the side of the movable air caps 32. The grate base 31 has a hole 321, which is closed at both the top and bottom and is provided with a limiting end cap 322 for limiting the release of the movable air cap 32; a cylinder 33 is connected to the lower outer side of the grate base 31, and a closed base 34 is provided at the bottom. A ventilation chamber 35 is located between the grate base 31, the cylinder 33 and the base 34; when the movable air cap 32 moves up to the top in the air cap mounting hole 311, the ventilation hole 321 communicates with the combustion chamber 13; when the movable air cap 32 falls down to the bottom in the air cap mounting hole 311, the ventilation hole 321 communicates with the ventilation chamber 35; an air inlet 331 is provided on the side wall of the cylinder 33 and communicates with the blower mechanism 5; a slag discharge mechanism 4 is provided at the center of the grate component 3, and the slag discharge mechanism 4 includes a slag discharge port 41 that connects to the bottom of the inverted conical shape on the grate base 31. The slag discharge port 41 is connected to the slag discharge channel 44 at the bottom through a downwardly arranged slag discharge cylinder 43. The feeding mechanism 2 includes a feeding shaft 22 vertically arranged in the upper part of the furnace body 1. A spiral material passage 21 from top to bottom is provided between the feeding shaft 22 and the inner wall of the furnace body 1. The upper part of the spiral material passage 21 communicates with the feed inlet 11. A ventilation self-feedback component 6 for sealing the furnace body 1 is provided on the upper part of the feeding shaft 22. The top of the feeding shaft 22 is connected to the feeding rotary motor 24 arranged outside the furnace body 1 through a transmission component 23. The bottom of the spiral material passage 21 is a material drop port 211 located directly above the combustion chamber 13; a material feeding component 25 is provided at the material drop port 211, the material feeding component 25 includes a material feeding rotating rod 252 arranged horizontally at the material drop port 211; material feeding rods 251 extending outward are evenly distributed on the material feeding rotating rod 252, and the inner end of the material feeding rotating rod 252 is connected and driven by a connecting rod 254 vertically and movably arranged in the material feeding rotating shaft 22 through a material feeding transmission component 253; the top of the connecting rod 254 is set on a fixed seat 255 outside the furnace body 1.

[0048] Example 4:

[0049] As a further optimization of the above embodiments: a biomass fuel-based combustion boiler device includes a furnace body 1, with a feed inlet 11 on one side of the upper part of the furnace body 1. A feeding mechanism 2 for pre-treating and distributing biomass fuel downwards is provided at the feed inlet 11 inside the furnace body 1. The lower part of the furnace body 1 is mounted on a grate 3, and a blower mechanism 5 for ventilating the grate 3 is fitted externally to the grate 3. A combustion chamber 13 is located between the feeding mechanism 2 and the grate 3, and a fire outlet 12 is provided on one side of the combustion chamber 13. The grate 3 includes a grate base 31 at its top, which is inverted conical in shape. Multiple air cap mounting holes 311 are evenly distributed on the grate base 31. Movable air caps 32, which are movable vertically and hollow, are installed within the air cap mounting holes 311. Ventilation is provided on the side of the movable air caps 32. The grate base 31 has a hole 321, which is closed at both the top and bottom and is provided with a limiting end cap 322 for limiting the release of the movable air cap 32; a cylinder 33 is connected to the lower outer side of the grate base 31, and a closed base 34 is provided at the bottom. A ventilation chamber 35 is located between the grate base 31, the cylinder 33 and the base 34; when the movable air cap 32 moves up to the top in the air cap mounting hole 311, the ventilation hole 321 communicates with the combustion chamber 13; when the movable air cap 32 falls down to the bottom in the air cap mounting hole 311, the ventilation hole 321 communicates with the ventilation chamber 35; an air inlet 331 is provided on the side wall of the cylinder 33 and communicates with the blower mechanism 5; a slag discharge mechanism 4 is provided at the center of the grate component 3, and the slag discharge mechanism 4 includes a slag discharge port 41 that connects to the bottom of the inverted conical shape on the grate base 31. The slag discharge port 41 is connected to the slag discharge channel 44 at the bottom through a downwardly arranged slag discharge cylinder 43. The blower mechanism 5 includes an annular blower cavity 51 covering the outside of the air inlet 331. The inner wall of the annular blower cavity 51 is provided with a blower surface 52 for communicating with the air inlet 331. The annular blower cavity 51 is connected to a blower 53 located outside the furnace body 1.

[0050] Example 5:

[0051] As a further optimization of the above embodiments: a biomass fuel-based combustion boiler device includes a furnace body 1, with a feed inlet 11 on one side of the upper part of the furnace body 1. A feeding mechanism 2 for pre-treating and distributing biomass fuel downwards is provided at the feed inlet 11 inside the furnace body 1. The lower part of the furnace body 1 is mounted on a grate 3, and a blower mechanism 5 for ventilating the grate 3 is fitted externally to the grate 3. A combustion chamber 13 is located between the feeding mechanism 2 and the grate 3, and a fire outlet 12 is provided on one side of the combustion chamber 13. The grate 3 includes a grate base 31 at its top, which is inverted conical in shape. Multiple air cap mounting holes 311 are evenly distributed on the grate base 31. Movable air caps 32, which are movable vertically and hollow, are installed within the air cap mounting holes 311. Ventilation is provided on the side of the movable air caps 32. The grate base 31 has a hole 321, which is closed at both the top and bottom and is provided with a limiting end cap 322 for limiting the release of the movable air cap 32; a cylinder 33 is connected to the lower outer side of the grate base 31, and a closed base 34 is provided at the bottom. A ventilation chamber 35 is located between the grate base 31, the cylinder 33 and the base 34; when the movable air cap 32 moves up to the top in the air cap mounting hole 311, the ventilation hole 321 communicates with the combustion chamber 13; when the movable air cap 32 falls down to the bottom in the air cap mounting hole 311, the ventilation hole 321 communicates with the ventilation chamber 35; an air inlet 331 is provided on the side wall of the cylinder 33 and communicates with the blower mechanism 5; a slag discharge mechanism 4 is provided at the center of the grate component 3, and the slag discharge mechanism 4 includes a slag discharge port 41 that connects to the bottom of the inverted conical shape on the grate base 31. The slag discharge port 41 is connected to the slag discharge channel 44 at the bottom through a downwardly arranged slag discharge cylinder 43. The blower mechanism 5 includes an annular blower cavity 51 covering the outside of the air inlet 331. The inner wall of the annular blower cavity 51 is provided with a blower surface 52 for communicating with the air inlet 331. The annular blower cavity 51 is connected to a blower 53 located outside the furnace body 1. The grate component 3 is provided with a ventilation self-feedback component 6. The ventilation self-feedback component 6 includes a slide rod 61 located below the base 34. A slide cylinder 62 that can move up and down is sleeved on the outside of the slide rod 61. The bottom of the slide cylinder 62 is fixedly connected to the furnace body 1. A compression spring 63 for reset buffering is sleeved on the outside of the slide rod 61 and the slide cylinder 62 between the bottom of the slide cylinder 62 and the base 34. A closing ring edge 64 for sealing the blower surface 52 is provided at the lower part of the cylinder 33. The slag discharge cylinder 43 includes an inner cylinder 431 and an outer cylinder 432. The inner cylinder 431 is connected to the base 34, and the outer cylinder 432 is connected to the bottom of the furnace body 1.

[0052] Example 6:

[0053] As a further optimization of the above embodiments: a biomass fuel-based combustion boiler device includes a furnace body 1, with a feed inlet 11 on one side of the upper part of the furnace body 1. A feeding mechanism 2 for pre-treating and distributing biomass fuel downwards is provided at the feed inlet 11 inside the furnace body 1. The lower part of the furnace body 1 is mounted on a grate 3, and a blower mechanism 5 for ventilating the grate 3 is fitted externally to the grate 3. A combustion chamber 13 is located between the feeding mechanism 2 and the grate 3, and a fire outlet 12 is provided on one side of the combustion chamber 13. The grate 3 includes a grate base 31 at its top, which is inverted conical in shape. Multiple air cap mounting holes 311 are evenly distributed on the grate base 31. Movable air caps 32, which are movable vertically and hollow, are installed within the air cap mounting holes 311. Ventilation is provided on the side of the movable air caps 32. The grate base 31 has a hole 321, which is closed at both the top and bottom and is provided with a limiting end cap 322 for limiting the release of the movable air cap 32; a cylinder 33 is connected to the lower outer side of the grate base 31, and a closed base 34 is provided at the bottom. A ventilation chamber 35 is located between the grate base 31, the cylinder 33 and the base 34; when the movable air cap 32 moves up to the top in the air cap mounting hole 311, the ventilation hole 321 communicates with the combustion chamber 13; when the movable air cap 32 falls down to the bottom in the air cap mounting hole 311, the ventilation hole 321 communicates with the ventilation chamber 35; an air inlet 331 is provided on the side wall of the cylinder 33 and communicates with the blower mechanism 5; a slag discharge mechanism 4 is provided at the center of the grate component 3, and the slag discharge mechanism 4 includes a slag discharge port 41 that connects to the bottom of the inverted conical shape on the grate base 31. The slag discharge port 41 is connected to the slag discharge channel 44 at the bottom through a downwardly arranged slag discharge cylinder 43. The grate component 3 has an air cap adjusting component 7 below the movable air cap 32; the air cap adjusting component 7 includes an annular stepped limiting plate 71 located below the grate base 31 and at the same distance from the bottom of all movable air caps 32; the bottom of the annular stepped limiting plate 71 is provided with a vertically movable support cylinder 72 outside the slag discharge cylinder 43, the outer wall of the slag discharge cylinder 43 is provided with a thread 74 below the support cylinder 72, and an adjusting screw sleeve 73 that mates with the thread 74 is provided directly below the support cylinder 72.

[0054] Example 7:

[0055] As a further optimization of the above embodiments: a biomass fuel-based combustion boiler device includes a furnace body 1, with a feed inlet 11 on one side of the upper part of the furnace body 1. A feeding mechanism 2 for pre-treating and distributing biomass fuel downwards is provided at the feed inlet 11 inside the furnace body 1. The lower part of the furnace body 1 is mounted on a grate 3, and a blower mechanism 5 for ventilating the grate 3 is fitted externally to the grate 3. A combustion chamber 13 is located between the feeding mechanism 2 and the grate 3, and a fire outlet 12 is provided on one side of the combustion chamber 13. The grate 3 includes a grate base 31 at its top, which is inverted conical in shape. Multiple air cap mounting holes 311 are evenly distributed on the grate base 31. Movable air caps 32, which are movable vertically and hollow, are installed within the air cap mounting holes 311. Ventilation is provided on the side of the movable air caps 32. The grate base 31 has a hole 321, which is closed at both the top and bottom and is provided with a limiting end cap 322 for limiting the release of the movable air cap 32; a cylinder 33 is connected to the lower outer side of the grate base 31, and a closed base 34 is provided at the bottom. A ventilation chamber 35 is located between the grate base 31, the cylinder 33 and the base 34; when the movable air cap 32 moves up to the top in the air cap mounting hole 311, the ventilation hole 321 communicates with the combustion chamber 13; when the movable air cap 32 falls down to the bottom in the air cap mounting hole 311, the ventilation hole 321 communicates with the ventilation chamber 35; an air inlet 331 is provided on the side wall of the cylinder 33 and communicates with the blower mechanism 5; a slag discharge mechanism 4 is provided at the center of the grate component 3, and the slag discharge mechanism 4 includes a slag discharge port 41 that connects to the bottom of the inverted conical shape on the grate base 31. The slag discharge port 41 is connected to the slag discharge channel 44 at the bottom through a downwardly arranged slag discharge cylinder 43. The slag discharge mechanism 4 is provided with a hemispherical baffle cover 42 above the slag discharge port 41; the baffle cover 42 has a slag passage 421 on its side for connecting the combustion chamber 13 and the slag discharge cylinder 43.

[0056] Example 8:

[0057] As a further optimization of the above embodiments: a biomass fuel-based combustion boiler device includes a furnace body 1, with a feed inlet 11 on one side of the upper part of the furnace body 1. A feeding mechanism 2 for pre-treating and distributing biomass fuel downwards is provided at the feed inlet 11 inside the furnace body 1. The lower part of the furnace body 1 is mounted on a grate 3, and a blower mechanism 5 for ventilating the grate 3 is fitted externally to the grate 3. A combustion chamber 13 is located between the feeding mechanism 2 and the grate 3, and a fire outlet 12 is provided on one side of the combustion chamber 13. The grate 3 includes a grate base 31 at its top, which is inverted conical in shape. Multiple air cap mounting holes 311 are evenly distributed on the grate base 31. Movable air caps 32, which are movable vertically and hollow, are installed within the air cap mounting holes 311. Ventilation is provided on the side of the movable air caps 32. The grate base 31 has a hole 321, which is closed at both the top and bottom and is provided with a limiting end cap 322 for limiting the release of the movable air cap 32; a cylinder 33 is connected to the lower outer side of the grate base 31, and a closed base 34 is provided at the bottom. A ventilation chamber 35 is located between the grate base 31, the cylinder 33 and the base 34; when the movable air cap 32 moves up to the top in the air cap mounting hole 311, the ventilation hole 321 communicates with the combustion chamber 13; when the movable air cap 32 falls down to the bottom in the air cap mounting hole 311, the ventilation hole 321 communicates with the ventilation chamber 35; an air inlet 331 is provided on the side wall of the cylinder 33 and communicates with the blower mechanism 5; a slag discharge mechanism 4 is provided at the center of the grate component 3, and the slag discharge mechanism 4 includes a slag discharge port 41 that connects to the bottom of the inverted conical shape on the grate base 31. The slag discharge port 41 is connected to the slag discharge channel 44 at the bottom through a downwardly arranged slag discharge cylinder 43. An observation window 15 is provided on the side wall of the furnace body 1; the feed inlet 11 on the furnace body 1 is connected to the auger feeding component 8.

[0058] Example 9:

[0059] As a further optimization of the above embodiments: a biomass fuel-based combustion boiler device includes a furnace body 1, with a feed inlet 11 on one side of the upper part of the furnace body 1. A feeding mechanism 2 for pre-treating and distributing biomass fuel downwards is provided at the feed inlet 11 inside the furnace body 1. The lower part of the furnace body 1 is mounted on a grate 3, and a blower mechanism 5 for ventilating the grate 3 is fitted externally to the grate 3. A combustion chamber 13 is located between the feeding mechanism 2 and the grate 3, and a fire outlet 12 is provided on one side of the combustion chamber 13. The grate 3 includes a grate base 31 at its top, which is inverted conical in shape. Multiple air cap mounting holes 311 are evenly distributed on the grate base 31. Movable air caps 32, which are movable vertically and hollow, are installed within the air cap mounting holes 311. Ventilation is provided on the side of the movable air caps 32. The grate base 31 has a hole 321, which is closed at both the top and bottom and is provided with a limiting end cap 322 for limiting the release of the movable air cap 32; a cylinder 33 is connected to the lower outer side of the grate base 31, and a closed base 34 is provided at the bottom. A ventilation chamber 35 is located between the grate base 31, the cylinder 33 and the base 34; when the movable air cap 32 moves up to the top in the air cap mounting hole 311, the ventilation hole 321 communicates with the combustion chamber 13; when the movable air cap 32 falls down to the bottom in the air cap mounting hole 311, the ventilation hole 321 communicates with the ventilation chamber 35; an air inlet 331 is provided on the side wall of the cylinder 33 and communicates with the blower mechanism 5; a slag discharge mechanism 4 is provided at the center of the grate component 3, and the slag discharge mechanism 4 includes a slag discharge port 41 that connects to the bottom of the inverted conical shape on the grate base 31. The slag discharge port 41 is connected to the slag discharge channel 44 at the bottom through a downwardly arranged slag discharge cylinder 43. The outer wall of the furnace body 1 is covered with a heat insulation layer 14; the inner wall of the outlet 12 of the feed port 11 is covered with a molybdenum-silicon carbide layer.

[0060] When the device is working, material is fed into the spiral conveying channel through the feed inlet. Before the material slides down to the discharge port, it can be preheated and dried. A rotating, upward-pushing material-pushing component is installed at the discharge port before it falls into the combustion chamber. When the feeding shaft rotates, it drives the outer end of the material-pushing rotating rod to make a circular motion. At this time, the bevel gear transmission mechanism, which is engaged with the inner end of the material-pushing rotating rod, has a fixed connecting rod at its other end. The connecting rod is stationary, and the outer end of the material-pushing rotating rod swings, thereby driving the inner end of the material-pushing rotating rod to rotate under the cooperation of the bevel gear transmission mechanism, ultimately realizing the material-pushing... The feed rod rotates around the axis of the feed rotating rod to complete the feed process; the amount of biomass fuel in the combustion chamber is directly reflected in the weight falling on the grate; the ventilation self-feedback component uses this weight to compress the compression spring and drive the entire grate to move downward, thereby increasing the area of ​​the air inlet and the blower surface on the cylinder, thus increasing the air intake and accommodating more fuel weight. Conversely, under the rebound of the compression spring, the ventilation at the air inlet will be reduced; the slag after combustion will converge towards the bottom of the inverted conical grate base and finally fall into the slag discharge channel through the slag discharge cylinder.

[0061] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0062] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of the present invention, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A biomass fuel-based combustion boiler device, characterized in that: The furnace includes a furnace body (1), with a feed inlet (11) on one side of the upper part of the furnace body (1). Inside the furnace body (1), at the feed inlet (11), there is a feeding mechanism (2) for pre-treating biomass fuel and feeding it downwards. The lower part of the furnace body (1) is mounted on a grate (3), and the grate (3) is fitted with a blower mechanism (5) for ventilating the grate (3). Between the feeding mechanism (2) and the grate (3) is a combustion chamber (13), and the furnace body (1) has an outlet (12) on one side of the combustion chamber (13). The grate (3) includes a grate base plate (31) on its top, which is inverted conical in shape. The grate base plate (31) is evenly distributed with... There are multiple air cap mounting holes (311), and movable air caps (32) that can move up and down and are hollow inside are installed in the air cap mounting holes (311); the movable air caps (32) have ventilation holes (321) on their sides and are closed at both ends and are provided with limiting end caps (322) for limiting the movable air caps (32) from falling out; a cylinder (33) is connected to the lower part of the outer side of the grate base (31), and a closed base (34) is provided at the bottom of the cylinder (33); a ventilation chamber (35) is formed between the grate base (31), the cylinder (33) and the base (34); when the movable air caps (32) move up to the top in the air cap mounting holes (311), the ventilation holes (321) and the combustion chamber (13) are connected. When the movable vent cap (32) falls to the bottom in the vent cap mounting hole (311), the ventilation hole (321) communicates with the ventilation chamber (35); the side wall of the cylinder (33) is provided with an air inlet (331) that communicates with the blower mechanism (5); the center of the grate component (3) is provided with a slag discharge mechanism (4), which includes a slag discharge port (41) that communicates with the bottom of the inverted cone shape on the grate base (31), and the slag discharge port (41) communicates with the bottom slag discharge channel (44) through the downwardly arranged slag discharge cylinder (43); the blower mechanism (5) includes an annular blower cavity (51) that covers the outside of the air inlet (331), and the inner wall of the annular blower cavity (51) is provided with a channel for communicating with the air inlet. The air vent (331) has an air blowing surface (52), and the annular air blowing chamber (51) is connected to a blower (53) located outside the furnace body (1); the grate component (3) is provided with a ventilation self-feedback component (6); the ventilation self-feedback component (6) includes a slide rod (61) located below the base (34), and a slide cylinder (62) that can move up and down is sleeved on the outside of the slide rod (61), and the bottom of the slide cylinder (62) is fixedly connected to the furnace body (1); a compression spring (63) for reset buffer is sleeved between the bottom of the slide cylinder (62) and the base (34) on the outside of the slide rod (61) and the slide cylinder (62); the lower part of the cylinder body (33) is provided with a closing ring edge (64) for closing the air blowing surface (52);The slag discharge cylinder (43) includes an inner cylinder (431) and an outer cylinder (432). The inner cylinder (431) is connected to the base (34), and the outer cylinder (432) is connected to the bottom of the furnace body (1).

2. The biomass fuel-based combustion boiler equipment according to claim 1, characterized in that: The feeding mechanism (2) includes a feeding shaft (22) vertically arranged in the upper part of the furnace body (1). A spiral material passage (21) from top to bottom is provided between the feeding shaft (22) and the inner wall of the furnace body (1). The upper part of the spiral material passage (21) is connected to the feed inlet (11). The top of the feeding shaft (22) is connected to the feeding rotary motor (24) arranged outside the furnace body (1) through a transmission component (23).

3. The biomass fuel-based combustion boiler equipment according to claim 2, characterized in that: The bottom of the spiral material passage (21) is a material drop port (211) located directly above the combustion chamber (13); a material feeding component (25) is provided at the material drop port (211), the material feeding component (25) includes a material feeding rotating rod (252) arranged horizontally at the material drop port (211); material feeding rods (251) extending outward are evenly distributed on the material feeding rotating rod (252), the inner end of the material feeding rotating rod (252) is connected and driven by a connecting rod (254) arranged vertically and movably in the material feeding shaft (22) through a material feeding transmission component (253); the top of the connecting rod (254) is set on a fixed seat (255) outside the furnace body (1).

4. The biomass fuel-based combustion boiler equipment according to claim 1, characterized in that: The grate component (3) is provided with a wind cap adjusting component (7) below the movable wind cap (32); the wind cap adjusting component (7) includes an annular stepped limiting plate (71) located below the grate base (31) and at the same distance from the bottom of all movable wind caps (32); the bottom of the annular stepped limiting plate (71) is provided with a support cylinder (72) that can move up and down on the outside of the slag discharge cylinder (43); the outer wall of the slag discharge cylinder (43) is provided with a thread (74) below the support cylinder (72); and an adjusting screw sleeve (73) that mates with the thread (74) is provided directly below the support cylinder (72).

5. The biomass fuel-based combustion boiler equipment according to claim 1, characterized in that: The slag discharge mechanism (4) has a hemispherical baffle cover (42) above the slag discharge port (41); the baffle cover (42) has a slag passage (421) on its side for connecting the combustion chamber (13) and the slag discharge cylinder (43).

6. The biomass fuel-based combustion boiler equipment according to claim 1, characterized in that: The furnace body (1) has an observation window (15) on its side wall; the feed port (11) on the furnace body (1) is connected to the auger feeding component (8) outward.

7. The biomass fuel-based combustion boiler equipment according to claim 1, characterized in that: The outer wall of the furnace body (1) is covered with a heat insulation layer (14); the inner walls of the feed inlet (11) and the fire outlet (12) are both covered with a molybdenum-silicon carbide layer.

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