Combustion machine for cattle dung biomass fuel

Abstract

The utility model provides a kind of combustion engine for cow dung biomass fuel, it is related to combustion engine technical field, and combustion engine includes furnace body, first air supply mechanism, second air supply mechanism and air direction adjusting mechanism;First air inlet is provided in the lower part of the side close to furnace body feeding, and this first air inlet is located below the fire grate in furnace body, and the air outlet end of first air supply mechanism is communicated with first air inlet;Air direction adjusting mechanism is set below fire grate, and its air inlet end is communicated with first air inlet, and the air outlet end is towards the fire grate of upper side, and the air outlet direction of air outlet end is adjustable;Second air inlet is provided in the upper part of the side close to furnace body flame exit, and the air outlet end of second air supply mechanism is communicated with second air inlet.The scheme can guarantee that biomass fuel is in the relatively optimal anoxic combustion state, while making the combustible gas at combustion engine outlet fully burn, so that the energy of biomass fuel is fully released, and the energy conversion efficiency of biomass fuel is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to combustion machine technical field, especially a kind of combustion machine for cow dung biomass fuel. BACKGROUND

[0002] With the continuous growth of global energy demand and the overconsumption of traditional fossil fuels, biomass energy, as a renewable and low-carbon alternative fuel, has become an important direction of energy transformation. Biomass fuel refers to solid fuel processed from agricultural and forestry waste (such as straw and sawdust), livestock manure (such as cow dung), and organic waste. Among them, cow dung fuel, due to its wide source (especially in areas with concentrated livestock industry), carbon-neutral characteristics and resource utilization value, has become an important part of biomass fuel, effectively solving the environmental pollution problem caused by accumulation of livestock manure, and replacing traditional fossil fuels to realize energy utilization of waste.

[0003] Although traditional fuels such as coal, oil or natural gas have high calorific value, their non-renewable nature, the production of sulfur oxides (SO x ), nitrogen oxides (NO x ) and greenhouse gases (CO2) during combustion process cause serious burden to the ecological environment. In contrast, biomass fuel has significant advantages: first, biomass growth or metabolism process absorbs CO2 through photosynthesis, and carbon emissions after combustion can be offset by natural circulation, with significantly lower carbon footprint than fossil fuels; second, biomass fuel has low sulfur and nitrogen content, with less emission of combustion pollutants; third, the source of raw materials is wide and the cost is low, especially waste fuels such as cow dung, which can reduce energy cost and meet the concept of circular economy.

[0004] Biomass combustion machine as the core equipment of biomass fuel energy conversion, through efficient combustion of biomass chemical energy into heat energy, and further through the boiler system to produce steam, widely used in industrial heating, regional heating, food processing, power generation and other fields. Such as patent application No. 201620006282.0 of China utility model patent announced a horizontal biomass combustion machine, four grate head butt joint placed on four butt joint column, the upper part of the grate in the furnace is hearth, the lower part of the grate is the bellows, the right end of the furnace is provided with a feed inlet, the feed inlet is communicated with the hearth, the left end of the furnace is provided with a flame outlet corresponding to the hearth, the leftmost end in the furnace is the ash chamber, the right side of the furnace is provided with a fan, the furnace cover is a hollow structure composed of inner wall and outer wall, a plurality of air distribution ports are formed in the inner wall of the furnace cover, the outlet ends of the air distribution ports are all directed to the direction of the flame outlet, the outlet of the fan is communicated with the bellows and the hollow structure of the furnace cover. In this scheme, the combustion machine as the intermediate combustion medium, the biomass fuel is put into the furnace for combustion, and then the flame outlet of the biomass combustion machine is directly connected with the hearth of the boiler or blast furnace, so as to provide energy for the boiler to realize the purpose of steam generation and other purposes, energy saving and environmental protection.

[0005] However, in the biomass combustion machine, it is necessary to convert solid fuel into combustible gas through gasification, that is, to generate combustible gas such as carbon monoxide, hydrogen and methane by partial oxidation and thermal decomposition of fuel in an oxygen-deficient environment, and then to fully burn the combustible gas at the outlet of the combustion machine. This process requires relatively accurate control of the air input amount at the outlet of the combustion machine and the air input amount during oxygen-deficient combustion. However, in the above-mentioned prior art, the fan supplies air to the bellows below the grate and the air distribution port above the grate, that is, the air amount supplied to the oxygen-deficient combustion and the combustion machine outlet (flame outlet) is relatively consistent and cannot be adjusted. When the fan supply is reduced to meet the oxygen-deficient combustion of the biomass fuel, the ventilation amount at the outlet of the combustion machine will also be reduced, which may cause the combustible gas to be difficult to burn fully. When the fan supply is increased to meet the full combustion of the combustible gas at the outlet of the combustion machine, the biomass fuel may not be in a relatively good oxygen-deficient combustion state. Therefore, the biomass combustion machine provided by the prior art cannot simultaneously ensure the oxygen-deficient combustion of the biomass fuel and the full combustion of the combustible gas at the outlet of the furnace, thereby reducing the combustion efficiency. Utility model content

[0006] Therefore, in view of the above problems, it is necessary to provide a combustion machine for cow dung biomass fuel, so as to ensure that the biomass fuel is in a relatively good oxygen-deficient combustion state, and at the same time, the combustible gas at the outlet of the combustion machine is fully combusted, so that the energy of the biomass fuel is fully released, and the energy conversion efficiency of the biomass fuel is improved.

[0007] This utility model provides a burner for cow dung biomass fuel. The burner includes a furnace body, a first air supply mechanism, a second air supply mechanism, and an air direction adjustment mechanism. A first air inlet is provided at the lower part of the side near the feeding side of the furnace body. The first air inlet is located below the grate inside the furnace body, and the air outlet end of the first air supply mechanism is connected to the first air inlet. The air direction adjustment mechanism is located below the grate, with its air inlet end connected to the first air inlet and its air outlet end facing the upper grate. The air outlet direction of the air outlet end is adjustable. A second air inlet is provided at the upper part of the side near the flame outlet of the furnace body, and the air outlet end of the second air supply mechanism is connected to the second air inlet.

[0008] Preferably, the furnace body includes: an outer shell, a fixing plate, a grate, a fixing frame, a drive motor, and a first base; the first base is fixedly installed on the bottom surface inside the outer shell, and the fixing frame is slidably disposed above the first base; fixing plates are fixedly installed on the front and rear surfaces inside the outer shell, the grate is disposed above the fixing frame, and is movably connected to the fixing frame and the fixing plates on both sides respectively; the drive motor is drivenly connected to the fixing frame to drive the fixing frame to reciprocate in the left-right direction.

[0009] Preferably, the grate includes M groups of first grates and N groups of second grates. Each group of first grates has a first rotating shaft fixedly installed below it. The two ends of the first rotating shaft are rotatably connected to bearings on fixed plates fixed on both sides. Each group of second grates is rotatably sleeved on a second rotating shaft fixed on a fixed frame below. The groups of first grates and second grates are alternately arranged in an overlapping manner, with the first grate serving as the first grate on the right side. Wherein, M and N are both positive integers not less than 1.

[0010] Preferably, the first base includes: an I-beam, a limiting groove, and a ball bearing; the I-beam is fixedly installed on the bottom surface inside the outer shell, and the limiting groove is fixed on the I-beam with its opening facing upward; the ball bearing is disposed in the limiting groove, and the ball bearing can protrude from the upper surface of the limiting groove, so that when the drive motor drives the fixed frame to reciprocate left and right, the ball bearing supporting the fixed frame can reciprocate left and right in the limiting groove.

[0011] Preferably, the bottom of the limiting groove is hollowed out.

[0012] Preferably, the airflow adjustment mechanism includes: a second base, an air guide cavity, a Z-shaped rotating shaft, and a crank handle; a second base is provided inside the housing on the front and rear surfaces of the first air inlet, and the two ends of the air guide cavity are movably connected to the second bases on both sides in a manner that allows rotation in the reciprocating motion direction. The side of the air guide cavity communicates with the first air inlet, and the upper opening faces the grate; the front end of the Z-shaped rotating shaft passes through both ends of the air guide cavity, and the rear end is threadedly connected to the fixing plate and extends out of the housing, and is fixedly connected to the crank handle outside the housing, so as to adjust the airflow direction of the upper opening of the air guide cavity by shaking the crank handle.

[0013] Preferably, a feeding port is provided on the upper part of the outer shell, and an opening and closing component is provided at the feeding port to control the opening and closing of the feeding port.

[0014] Preferably, the opening and closing assembly includes two opening and closing plates and two driving assemblies; the two opening and closing plates are disposed opposite each other in the feeding port and can close the feeding port when they are combined into a plate; one end of each of the two opening and closing plates is movably connected to the inner wall on both sides of the feeding port, and the other end is rotatably connected to the driving end of each of the driving assemblies, and the fixed end of each driving assembly is rotatably connected to the outer wall of the feeding port.

[0015] Preferably, the burner further includes a conveying mechanism for feeding materials, with the feed end of the conveying mechanism located on the ground side and the discharge end located above the feed inlet.

[0016] Preferably, a temperature sensor is installed on the furnace body to monitor the temperature inside the furnace.

[0017] As can be seen from the above technical solution, the burner for cow dung biomass fuel provided in this embodiment of the utility model includes a furnace body, a first air supply mechanism, a second air supply mechanism, and an air direction adjustment mechanism. A first air inlet is located at the lower part of the furnace body near the feeding side, below the grate inside the furnace body. The outlet of the first air supply mechanism is connected to the first air inlet. Thus, by adjusting the first air supply mechanism, a suitable ventilation volume can be provided for the oxygen-deficient combustion process, thereby ensuring that the biomass fuel has a good oxygen-deficient combustion state in the early stage, fully converting it into combustible gas. Simultaneously, a slight positive pressure is provided inside the furnace body, sending the generated combustible gas to the flame outlet of the furnace body. A second air inlet is located at the upper part of the furnace body near the flame outlet, and the outlet of the second air supply mechanism is connected to the second air inlet. Thus, by adjusting the second air supply mechanism, sufficient air can be provided for the combustion of combustible gas at the flame outlet of the furnace body, thereby ensuring that the combustible gas at the burner outlet can be fully combusted and ensuring combustion efficiency. Therefore, this scheme considers setting up air supply mechanisms on both the feeding side and the flame outlet side. Different supply mechanisms adjust the air volume at corresponding locations, ensuring the biomass fuel is in an optimal oxygen-deficient combustion state while allowing the combustible gas at the burner outlet to burn completely, thus fully releasing the energy of the biomass fuel and improving its energy conversion efficiency. Furthermore, this scheme also includes an air direction adjustment mechanism below the grate. The air inlet of this mechanism is connected to the first air inlet, and the air outlet faces the upper grate. The air outlet direction is adjustable, allowing the air outlet direction to be adjusted according to the position or combustion state of the biomass fuel on the grate, ensuring the biomass fuel is in a favorable oxygen-deficient combustion state initially and fully converted into combustible gas. Attached Figure Description

[0018] Figure 1A front view of a burner for cow dung biomass fuel provided in an embodiment of this utility model.

[0019] Figure 2 This is a rear view of a burner for cow dung biomass fuel provided in an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of a furnace body provided for an embodiment of the present utility model.

[0021] Figure 4 This is a schematic diagram of the internal structure of a furnace body provided for an embodiment of the present utility model.

[0022] Figure 5 This is a schematic diagram of a wind direction adjustment mechanism provided for an embodiment of the present utility model.

[0023] Figure 6 This is a schematic diagram of an opening and closing component provided in an embodiment of the present utility model.

[0024] In the diagram: Furnace body 10, first air inlet 11, second air inlet 12, flame outlet 13, outer shell 14, fixing plate 15, grate 16, first grate 161, second grate 162, first rotating shaft 163, bearing 164, second rotating shaft 165, fixing frame 17, drive motor 18, first base 19, I-beam 191, limiting groove 192, ball bearing 193, feeding port 110, ash collection chamber 111, first air supply mechanism 20, second air supply mechanism 30, air direction adjustment mechanism 40, second base 41, air guide chamber 42, Z-shaped rotating shaft 43, crank handle 44, opening and closing assembly 50, opening and closing plate 51, drive assembly 52, conveying mechanism 60, temperature sensor 70. Detailed Implementation

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] like Figures 1-6As shown, this utility model embodiment provides a burner for cow dung biomass fuel. The burner includes a furnace body 10, a first air supply mechanism 20, a second air supply mechanism 30, and an air direction adjustment mechanism 40. A first air inlet 11 is provided at the lower part near the feeding side of the furnace body 10. The first air inlet 11 is located below the grate 16 inside the furnace body 10. The air outlet end of the first air supply mechanism 20 is connected to the first air inlet 11. The air direction adjustment mechanism 40 is located below the grate 16. Its air inlet end is connected to the first air inlet 11, and its air outlet end faces the upper grate 16. The air outlet direction of the air outlet end is adjustable. A second air inlet 12 is provided at the upper part near the flame outlet 13 of the furnace body 10. The air outlet end of the second air supply mechanism 30 is connected to the second air inlet 12.

[0027] In this embodiment, air supply mechanisms are provided on the feeding side and the flame outlet 13 side, respectively. Different air supply mechanisms can be used to adjust the air volume at corresponding positions, ensuring that the biomass fuel is in a relatively optimal oxygen-deficient combustion state while allowing the combustible gas at the burner outlet to burn completely, thereby fully releasing the energy of the biomass fuel and improving its energy conversion efficiency. For example, if excessive airflow occurs during the conversion of biomass fuel into combustible gas, resulting in incomplete conversion, the airflow at the first air inlet 11 can be reduced by the first air supply mechanism 20 to decrease the oxygen supply for biomass fuel combustion, thus ensuring a relatively good oxygen-deficient combustion state and fully converting the biomass fuel into combustible gas. When the combustible gas at the flame outlet 13 of the furnace body 10 fails to burn completely, the airflow at the second air inlet 12 can be increased by the second air supply mechanism 30 to provide sufficient oxygen for the combustion of the combustible gas, ensuring complete combustion of the combustible gas at the flame outlet of the furnace body 10 and improving combustion efficiency.

[0028] This design also includes an airflow adjustment mechanism 40 below the grate 16. The air inlet of the airflow adjustment mechanism 40 is connected to the first air inlet 11, and the air outlet faces the upper grate 16. The air outlet direction is adjustable, allowing the airflow direction to be adjusted according to the position or combustion state of the biomass fuel on the grate 16. This ensures that the biomass fuel is in a good oxygen-deficient combustion state in the early stages, fully converting into combustible gas. For example, in the initial ignition stage, if the biomass fuel is not located at the air outlet, meaning that the air entering from the first air inlet 11 cannot be directly supplied to the biomass fuel and thus cannot burn, the airflow adjustment mechanism 40 can be used to adjust the airflow direction to ensure that the biomass fuel can be ignited. For example, if the biomass fuel on the front grate 16 is fully burned in a short period of time, but experience shows that the air supply is at a normal value, the direction of the air outlet can be adjusted so that the air outlet is as close as possible to the side of the flame outlet 13 of the furnace body 10, so as to reduce the ventilation of the biomass fuel in a short period of time. After the combustion slows down, the ventilation direction is restored, thus avoiding frequent adjustments to the first air supply mechanism 20.

[0029] The first air supply mechanism 20 and the second air supply mechanism 30 can be variable frequency fans, which can achieve stepless speed regulation of the fan by frequency conversion through a frequency converter, thereby adapting to the air supply volume of oxygen-deficient combustion and combustible gas combustion, especially suitable for the oxygen-deficient combustion state of biomass fuel converted into combustible gas.

[0030] The furnace body 10 and the flame outlet 13 can be connected to a boiler or other heat-requiring equipment to provide heat to the boiler and generate steam.

[0031] The furnace body 10 specifically includes: an outer shell 14, a fixing plate 15, a grate 16, a fixing frame 17, a drive motor 18, and a first base 19. The first base 19 is fixedly installed on the bottom surface inside the outer shell 14, and the fixing frame 17 is slidably disposed above the first base 19. Fixing plates 15 are fixedly installed on both the front and rear surfaces inside the outer shell 14. The grate 16 is disposed above the fixing frame 17 and is movably connected to the fixing frame 17 and the fixing plates 15 on both sides, respectively. The drive motor 18 is driven by the fixing frame 17 to drive the fixing frame 17 to reciprocate in the left-right direction. In this way, when biomass fuel is fed to the front end of the grate 16, it can be continuously transported to the other end of the grate 16 during combustion through the reciprocating motion of the grate 16. The ash after combustion also falls into the ash collection chamber 111 below, while ensuring the continuous feeding and combustion of biomass fuel.

[0032] The grate 16 can specifically include M groups of first grates 161 and N groups of second grates 162. Each group of first grates 161 has a first rotating shaft 163 fixedly installed below it. The two ends of the first rotating shaft 163 are respectively rotatably connected to bearings 164 fixed on the fixing plates 15 on both sides. Each group of second grates 162 is rotatably sleeved on a second rotating shaft 165 fixed on the fixing frame 17 below. The groups of first grates 161 and second grates 162 are alternately arranged in a head-to-tail overlapping manner, and the first grate 161 is the first grate 16 on the right side. M and N are both positive integers not less than 1.

[0033] In this embodiment, the first grate 161 and the second grate 162 are alternately arranged in an overlapping manner. For example, if both M and N are 2, then taking the front view as an example, from left to right, the order is: first grate 161, second grate 162, first grate 161, second grate 162. Both sets of first grates 161 are rotatably connected to the fixing plates 15 on both sides through bearings 164, while both sets of second grates 162 are rotatably connected to the fixing frame 17. Thus, when the drive motor 18 drives the fixing frame 17 to reciprocate in the left and right direction, when the drive motor 18 drives the fixing frame 17 to move forward to the left, the second grate 162 will push the biomass fuel on the first grate 161 on its left side forward. At the same time, when the drive motor 18 drives the fixing frame 17 to return to the right, the biomass fuel on the second grate 162 will be pushed to the left by the first grate 161 on its right side, that is, pushed towards the outlet of the furnace body 10. Thus, with the continuous reciprocating motion of the drive mechanism, biomass fuel can be continuously burned and forwarded, thereby achieving continuous combustion in the biomass burner.

[0034] Since the drive mechanism needs to drive the fixed frame 17 to reciprocate, and the fixed frame 17 is mounted on the first base 19, in order to ensure that the fixed frame 17 can smoothly reciprocate on the first base 19 with the drive mechanism, the first base 19 may further include: an H-beam 191, a limiting groove 192, and a ball bearing 193; the H-beam 191 is fixedly installed on the bottom surface inside the housing 14, and the limiting groove 192 is fixed on the H-beam 191, with the opening of the limiting groove 192 facing upward; the ball bearing 193 is disposed in the limiting groove 192, and the ball bearing 193 can protrude from the upper surface of the limiting groove 192, so that when the drive motor 18 drives the fixed frame 17 to reciprocate left and right, the ball bearing 193 supporting the fixed frame 17 will reciprocate left and right within the limiting groove 192. In this way, the ball bearing 193 will reciprocate within the limiting groove 192 with the drive of the fixed frame 17, reducing the resistance to the movement of the fixed frame 17. Of course, reinforcements or consumables can be provided on the surface where the ball bearing 193 contacts the fixed frame 17 to avoid wear and tear on the fixed frame 17 during long-term operation.

[0035] Furthermore, considering that the upper side of the limiting groove 192 is the grate 16, and that burning ash will fall from the grate 16, in order to prevent the ash from falling into the limiting groove 192 and affecting the movement of the ball bearing 193 within the limiting groove 192, it is considered to set the bottom of the limiting groove 192 as a hollow structure, such as by opening a long strip-shaped through hole, so that the falling ash can fall into the ash collection chamber 111 below through the through hole.

[0036] The airflow adjustment mechanism 40 may specifically include: a second base 41, an air guide cavity 42, a Z-shaped rotating shaft 43, and a crank handle 44; the housing 14 has a second base 41 located on the front and rear surfaces of the first air inlet 11, and the two ends of the air guide cavity 42 are movably connected to the second base 41 on both sides in a manner that allows it to rotate in the direction of reciprocating motion. The side of the air guide cavity 42 is connected to the first air inlet 11, and the upper opening faces the grate 16; the front end of the Z-shaped rotating shaft 43 passes through both ends of the air guide cavity 42, and the rear end is threadedly connected to the fixing plate 15 and extends out of the housing 14, and is fixedly connected to the crank handle 44 outside the housing 14, so as to adjust the airflow direction of the upper opening of the air guide cavity 42 by shaking the crank handle 44.

[0037] In addition, a feeding port 110 is provided above the outer shell 14 of the furnace body 10. An opening and closing assembly 50 is provided at the feeding port 110 to control the opening and closing of the feeding port 110. Specifically, the opening and closing assembly 50 may include two opening and closing plates 51 and two drive assemblies 52. The two opening and closing plates 51 are positioned opposite each other within the feeding port 110 and can close the feeding port 110 when they are combined into one plate. One end of each of the two opening and closing plates 51 is movably connected to the inner walls on both sides of the feeding port 110, and the other end is rotatably connected to the drive end of each drive assembly 52. ​​The fixed ends of the drive assemblies 52 are rotatably connected to the outer wall of the feeding port 110. Thus, when feeding is complete and the feeding port 110 needs to be closed, the two drive assemblies 52 drive the two opening and closing plates 51 to merge, sealing the feeding port 110. When feeding needs to be opened, the two drive assemblies 52 drive the two opening and closing plates 51 to separate, allowing biomass fuel to be fed into the furnace body 10. The drive component can be hydraulically driven or electrically driven.

[0038] There are two ways to open the hinge plate 51. The first way is to rotate the hinge plate 51 upward to open the feeding port 110 and rotate it downward to close and seal the feeding port 110. The second way is to rotate the hinge plate 51 downward to open the feeding port 110 and rotate it upward to close and seal the feeding port 110.

[0039] Furthermore, to facilitate the input of biomass fuel from the feeding port 110, in one embodiment, the burner provided by this solution also includes a conveying mechanism 60 for feeding. The feeding end of the conveying mechanism 60 is located on the ground side, and the discharging end is located above the feeding port 110. For example, the conveying mechanism 60 can be a conveyor belt to transport biomass fuel from the ground side to the feeding port 110 on the upper side of the furnace body 10 for input, avoiding manual fuel addition, reducing the workload of personnel, and improving work efficiency.

[0040] Furthermore, to facilitate accurate adjustment of the air supply volume of the first air supply mechanism 20, the air supply volume can be controlled by monitoring the temperature inside the furnace body 10. For example, under normal circumstances, when the temperature inside the furnace body 10 is maintained at around 550 degrees Celsius, the biomass fuel inside the furnace body 10 is in a relatively good oxygen-deficient combustion state, which can effectively convert the biomass fuel into combustible gas. Therefore, a temperature sensor 70 can also be installed on the furnace body 10 to monitor the temperature inside the furnace body 10 and adjust the air supply volume of the first air supply mechanism 20 based on the monitored temperature. For example, the first air supply mechanism 20 and the temperature sensor 70 are both communicatively or electrically connected to a control terminal, and the temperature sensor 70 uploads the monitored temperature data to the control terminal in real time. If the control terminal determines that the temperature is below 550 degrees Celsius and the difference is greater than a preset threshold, it controls the first air supply mechanism 20 to increase the air supply volume; conversely, if the temperature is above 550 degrees Celsius and the difference is greater than the preset threshold, it controls the first air supply mechanism 20 to decrease the air supply volume.

[0041] When using the cow dung biomass fuel burner provided by this utility model, biomass fuel is fed into the furnace body 10 through the feeding port 110 via the conveying mechanism 60. The opening and closing component 50 is then opened to feed the biomass fuel onto the grate 16 inside the furnace body 10. After feeding is complete, the conveying mechanism 60 and the opening and closing component 50 are closed. The operator performs the ignition operation, and after ignition, the drive mechanism is started. During combustion, the air volume of the first air supply mechanism 20 is adjusted in real time according to the temperature monitoring inside the furnace body 10 to ensure that the biomass fuel is fully converted into combustible gas and transported to the flame outlet 13 of the furnace body 10. Ignition is performed at the flame outlet 13 of the furnace body 10 to burn the combustible gas. The heat generated after combustion is then transferred to subsequent connected equipment requiring heat, such as boilers.

[0042] The modules or units in the device of this utility model embodiment can be merged, divided, and deleted according to actual needs. The above-disclosed embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of this utility model. Those skilled in the art can understand that implementing all or part of the processes of the above embodiments and making equivalent changes according to the claims of this utility model still fall within the scope of this utility model.

Claims

1. A burner for using cow dung biomass fuel, characterized in that, The burner includes a furnace body, a first air supply mechanism, a second air supply mechanism, and an air direction adjustment mechanism. A first air inlet is provided at the lower part near the feeding side of the furnace body. The first air inlet is located below the grate inside the furnace body, and the air outlet of the first air supply mechanism is connected to the first air inlet. The air direction adjustment mechanism is located below the grate, with its air inlet connected to the first air inlet and its air outlet facing the upper grate. The air outlet direction of the air outlet is adjustable. A second air inlet is provided at the upper part near the flame outlet side of the furnace body, and the air outlet of the second air supply mechanism is connected to the second air inlet.

2. The burner for cow dung biomass fuel according to claim 1, characterized in that, The furnace body includes: an outer shell, a fixing plate, a grate, a fixing frame, a drive motor, and a first base; the first base is fixedly installed on the bottom surface inside the outer shell, and the fixing frame is slidably disposed above the first base; fixing plates are fixedly installed on the front and rear surfaces inside the outer shell, the grate is disposed above the fixing frame, and is movably connected to the fixing frame and the fixing plates on both sides respectively; the drive motor is drivenly connected to the fixing frame to drive the fixing frame to reciprocate in the left-right direction.

3. The burner for cow dung biomass fuel according to claim 2, characterized in that, The grate includes M groups of first grates and N groups of second grates. Each group of first grates has a first rotating shaft fixedly installed below it. The two ends of the first rotating shaft are rotatably connected to bearings on fixed plates fixed on both sides. Each group of second grates is rotatably sleeved on a second rotating shaft fixed on a fixed frame below. The groups of first grates and second grates are alternately arranged in an overlapping manner, with the first grate serving as the first grate on the right side. M and N are both positive integers not less than 1.

4. The burner for cow dung biomass fuel according to claim 2, characterized in that, The first base includes: an I-beam, a limiting groove, and a ball bearing; the I-beam is fixedly installed on the bottom surface inside the outer shell, and the limiting groove is fixed on the I-beam with the opening facing upward; the ball bearing is disposed in the limiting groove, and the ball bearing can protrude from the upper surface of the limiting groove, so that when the drive motor drives the fixed frame to reciprocate left and right, the ball bearing supporting the fixed frame can reciprocate left and right in the limiting groove.

5. The burner for cow dung biomass fuel according to claim 4, characterized in that, The bottom of the limiting groove is hollowed out.

6. The burner for cow dung biomass fuel according to claim 2, characterized in that, The airflow adjustment mechanism includes: a second base, an air guide cavity, a Z-shaped rotating shaft, and a crank handle; a second base is provided on the front and rear surfaces of the first air inlet inside the housing; the two ends of the air guide cavity are movably connected to the second bases on both sides in a manner that allows it to rotate in the direction of reciprocating motion; the side of the air guide cavity is connected to the first air inlet, and the upper opening faces the grate; the front end of the Z-shaped rotating shaft passes through both ends of the air guide cavity, and the rear end is threadedly connected to the fixing plate and extends out of the housing, and is fixedly connected to the crank handle outside the housing, so as to adjust the airflow direction of the upper opening of the air guide cavity by shaking the crank handle.

7. The burner for cow dung biomass fuel according to claim 2, characterized in that, A feeding port is provided on the top of the outer shell, and an opening and closing component is provided at the feeding port to control the opening and closing of the feeding port.

8. The burner for cow dung biomass fuel according to claim 7, characterized in that, The opening and closing assembly includes two opening and closing plates and two driving assemblies; the two opening and closing plates are placed opposite each other inside the feeding port, and can close the feeding port when they are combined into one plate; one end of each of the two opening and closing plates is movably connected to the inner wall on both sides of the feeding port, and the other end is rotatably connected to the driving end of one of the driving assemblies, and the fixed end of each driving assembly is rotatably connected to the outer wall of the feeding port.

9. The burner for cow dung biomass fuel according to claim 7, characterized in that, The burner also includes a conveying mechanism for feeding materials, with the feed end of the conveying mechanism located on the ground side and the discharge end located above the feed port.

10. The burner for cow dung biomass fuel according to claim 1, characterized in that, The furnace body is equipped with a temperature sensor to monitor the temperature inside the furnace.

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