Straw carbonization and returning machine

Abstract

This invention discloses a straw carbonization and returning-to-field machine, relating to the field of agricultural machinery technology. Its main purpose is to carbonize and burn straw to remove harmful substances and return it to the field for reuse. The main technical solution of this invention is as follows: a straw carbonization and returning-to-field machine, comprising: a frame, a processing unit, and an exhaust unit; the front end of the frame is connected to a traction head, and the rear end is connected to a traveling wheel; the processing unit includes a combustion chamber, a rotary tillage chamber, and a press roller arranged sequentially along the frame; the combustion chamber contains a chopper, a feed thrower, a material collecting burner, and a carbonization spreader arranged sequentially; the rotary tillage chamber is equipped with a rotary tiller; the exhaust unit includes a blower and a suction fan; the outlet pipe of the blower is connected to the rear end of the combustion chamber, the inlet pipe of the suction fan is connected to the upper end of the combustion chamber, and the outlet pipe of the suction fan is connected to the rotary tillage chamber.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to a straw carbonization and returning machine. Background Technology

[0002] Fertile farmland and abundant organic matter are the foundation of crop growth and the very basis of a nation, impacting human survival and health. Currently, there are no effective methods for managing crop straw in fields, both domestically and internationally. The organic matter in straw is not being utilized effectively in the fields. Straw carbonization is indeed a significant technical challenge. Traditionally, straw is directly plowed into the soil, which slows decomposition and fails to maximize the utilization of organic matter. Furthermore, it introduces harmful substances such as insect eggs and plastic film into the soil. Direct ignition and natural burning result in excessive burning of straw, destroying all organic matter, polluting the environment, and increasing the risk of fire. It fails to effectively improve soil quality or promote crop growth. Summary of the Invention

[0003] In view of this, the present invention provides a straw carbonization and returning machine, the main purpose of which is to carbonize and burn straw to remove harmful substances and return it to the field for reuse.

[0004] To achieve the above objectives, the present invention mainly provides the following technical solutions:

[0005] This invention provides a straw carbonization and returning machine, which includes: a frame, a processing unit and an exhaust fan;

[0006] The front end of the frame is connected to the traction head, and the rear end is connected to the walking wheels;

[0007] The processing unit includes a combustion chamber, a rotary tillage chamber, and a press roller arranged sequentially along the frame. The combustion chamber is equipped with a chopper, a feeder, a material collector burner, and a carbonization spreader arranged sequentially. The rotary tillage chamber is equipped with a rotary tiller.

[0008] The air intake unit includes a blower and a suction fan. The outlet pipe of the blower is connected to the rear end of the combustion chamber, the inlet pipe of the suction fan is connected to the upper end of the combustion chamber, and the outlet pipe of the suction fan is connected to the rotary tillage chamber.

[0009] The objectives of this invention and the technical problems it addresses can be further achieved by the following technical measures.

[0010] Optionally, the carbonization feeder includes a square shaft, a circular tube shaft, and multiple comb teeth. The sidewall of the circular tube shaft has multiple comb teeth arranged axially. The two end faces of the circular tube shaft are respectively provided with rectangular openings. The square shaft passes through two of the rectangular openings in sequence. The two ends of the square shaft are respectively rotatably connected to the opposite sidewalls of the combustion chamber. The diagonal length of the radial section of the square shaft is greater than the width of the rectangular opening and less than the length of the rectangular opening. The opposite ends of the square shaft are respectively fixedly connected to the heat insulation disc.

[0011] Optionally, it also includes an adjustment plate, which is rotatably connected to the opposite side wall of the blower outlet pipe via a pivot, and the end of the pivot is provided with an angle adjustment component.

[0012] Optionally, the chopper includes a chopping shaft and a plurality of chopping blades, the plurality of chopping blades being arranged sequentially on the side of the chopping shaft, and the two ends of the chopping shaft being rotatably connected to the opposite sidewalls of the combustion chamber.

[0013] Optionally, the ejector includes an ejector shaft and multiple ejector blades, with the multiple ejector blades arranged sequentially on the side of the ejector shaft, and the two ends of the ejector shaft being rotatably connected to the opposite sidewalls of the combustion chamber.

[0014] Optionally, the rotary tiller includes a rotary shaft and multiple rotary blades, the multiple rotary blades being arranged sequentially on the side of the rotary shaft, and the two ends of the rotary shaft being rotatably connected to the opposite sidewalls of the rotary chamber.

[0015] Optionally, the assembly also includes a copying arm, a connecting plate, and a partition plate. One end of the copying arm is hinged to the side of the frame, and the other end is connected to the traveling wheel. The middle part of the copying arm is connected to the rear end of the frame via a hydraulic rod. One end of the connecting plate is hinged to the rear end of the frame, and the other end is connected to the press roller. The middle part of the connecting plate is connected to the rear end of the frame via a first elastic component. One end of the partition plate is hinged to the outside of the connecting plate, and the other end of the partition plate extends outward toward the outside of the press roller. The middle part of the partition plate is connected to the connecting plate via a second elastic component.

[0016] Optionally, it also includes a power distribution reducer, which is mounted at the front end of the frame. The front end of the power distribution reducer is connected to the power input shaft. The left output shaft of the power distribution reducer is connected to the first pulley. The shredder is coaxially connected to the second pulley. The thrower is coaxially connected to the third pulley and the first sprocket. The carbonization feeder is coaxially connected to the second sprocket. The impeller of the blower is coaxially connected to the fourth pulley. The first pulley is driven by the second pulley and the third pulley. The third pulley is driven by the fourth pulley. The first sprocket is connected to the second sprocket via a chain.

[0017] Optionally, the right output shaft of the power distribution reducer is connected to the fifth pulley, the impeller of the suction fan is coaxially connected to the sixth pulley, the rotary tiller is coaxially connected to the seventh pulley, and the fifth pulley is respectively driven by the sixth pulley and the seventh pulley.

[0018] Optionally, it may also include a plurality of baffles, which are arranged sequentially around the lower periphery of the frame.

[0019] By employing the above technical solution, the present invention has at least the following advantages:

[0020] This machine boasts a rational structure, not only achieving mechanization to replace manual labor, but also completing the crushing and spreading of various types of straw during its movement, aided by the shredder and thrower. Under the action of the aggregate burner and carbonization spreader, the straw in the combustion chamber is automatically ignited, undergoing reciprocating and uniform carbonization. The rotary tiller mixes the smoke, straw, and soil, which is then compacted by the press roller, reducing smoke pollution. The carbonized material effectively combines with the soil, fully utilizing organic matter. High-temperature combustion eliminates residual mulch and grass seeds, killing insect eggs and bacteria in the soil, thus protecting the land. Furthermore, this machine is easy to operate, has stable and reliable performance, and high work efficiency. Attached Figure Description

[0021] Figure 1 A side view of a straw carbonization and returning machine provided in an embodiment of the present invention;

[0022] Figure 2 This is a top view of a straw carbonization and returning machine provided in an embodiment of the present invention;

[0023] Figure 3 for Figure 1 Enlarged view of section A.

[0024] The reference numerals in the accompanying drawings include: 1. Frame; 2. Traveling wheel; 3. Combustion chamber; 4. Rotary tillage chamber; 5. Press roller; 6. Chopper; 7. Thrower; 8. Rotary tiller; 9. Blower; 10. Collecting combustion trough; 11. Electronic fuel ignition nozzle; 12. Square shaft; 13. Round tube shaft; 14. Comb teeth; 15. Heat insulation disc; 16. Adjusting plate; 17. Chopping shaft 601; Chopping blade 602; Throwing shaft 701; Throwing blade 702; Rotary tillage shaft 801; Rotary tillage blade 802; Follow-up arm. 18. Connecting plate; 19. Separator plate; 20. Hydraulic rod; 21. First elastic component; 22. Second elastic component; 23. Power distribution reducer; 24. First pulley; 25. Second pulley; 26. Third pulley; 27. First sprocket; 28. Second sprocket; 29. ​​Fourth pulley; 30. Fifth pulley; 31. Sixth pulley; 32. Seventh pulley; 33. Material stop plate; 34. Spring; 2201. Sleeve; 2202. Support rod; 2203. Baffle; 2204. Retaining ring; 2205. Detailed Implementation

[0025] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the specific embodiments, structures, features, and effects according to the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments. In the following description, different "embodiments" or "embodiments" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0027] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a straw carbonization and returning machine, which includes: a frame 1, a processing unit and an exhaust fan;

[0028] The front end of the frame 1 is connected to the traction head, and the rear end is connected to the walking wheel 2;

[0029] The processing unit includes a combustion chamber 3, a rotary tillage chamber 4 and a press roller 5 arranged sequentially along the frame 1. A chopper 6, a thrower 7, a material collecting burner and a carbonization spreader are arranged sequentially in the combustion chamber 3. A rotary tiller 8 is installed in the rotary tillage chamber 4.

[0030] The air intake unit includes a blower 9 and a suction fan 10. The outlet pipe of the blower 9 is connected to the rear end of the combustion chamber 3, the inlet pipe of the suction fan 10 is connected to the upper end of the combustion chamber 3, and the outlet pipe of the suction fan 10 is connected to the rotary tillage chamber 4.

[0031] The working process of a straw carbonization and returning machine is as follows:

[0032] The tractor's rear traction lever is connected to the machine's traction head, driving the machine to move in the field. The shredder 6 first cuts the straw on the ground, and then the thrower 7 throws the straw on the ground into the combustion chamber 3. With the assistance of the aggregate burner, the straw in the soil is agitated by the carbonization spreader, and the organic matter content of the straw in the soil reaches the desired value. The plastic film is burned and degraded, and grass seeds, insect eggs, and pathogens in the soil are killed at high temperatures. Finally, the carbonized straw falls to the ground, and under the action of the subsequent rotary tiller 8, the carbonized straw and soil are effectively mixed.

[0033] Furthermore, during the above process, the blower 9 supplies fresh air into the combustion chamber 3, and the suction fan 10 guides the smoke and dust generated by combustion to the rotary tillage chamber 4, so that the smoke and dust are also covered by the soil carried up by the rotary tiller 8. Finally, it is sealed by the press roller 5, which reduces the harm of smoke and dust to human health. The straw is carbonized evenly and the carbonization effect is good. The organic matter in the carbonized soil reaches the optimal state. Moreover, this straw carbonization and returning machine is easy to operate, has stable and reliable working performance, and high working efficiency.

[0034] Specifically, the aggregate burner includes an aggregate combustion trough 11 and a fuel electronic ignition nozzle 12. The aggregate combustion trough 11 is fixed in front of the carbonization distributor. The two semi-circular plates at both ends of the aggregate combustion trough 11 are fixed with shaft heads. The shaft heads are connected to the frame 1 through connecting seats. An angle adjuster is sleeved on the shaft head at one end of the aggregate combustion trough 11. The frame 1 at the other end of the aggregate combustion trough 11 is equipped with a fuel feeding door. A set of fuel electronic ignition nozzles 12 is fixed on the upper part of the aggregate combustion trough 11. The pipeline of the electronic ignition nozzle is connected to the central processing unit. The temperature sensor, flame sensor, and fuel tank are all connected to the central processing unit to control ignition.

[0035] Specifically, the carbonization fabricator is located in the rear space of the combustion chamber 3, and the outlet pipe of the blower 9 is connected to the rear end of the combustion chamber 3 to provide fresh air to the carbonization fabricator.

[0036] Specifically, the compaction roller 5 compacts the mixture discharged from the rotary tiller 8, and the dust is pressed into the soil and purified, reducing the pollution of the air by the dust.

[0037] like Figure 1 and Figure 2 As shown, in a specific embodiment, the carbonization feeder includes a square shaft 13, a circular tube shaft 14, and multiple comb teeth 15. Multiple comb teeth 15 are axially arranged on the sidewall of the circular tube shaft 14. Rectangular openings are provided on both ends of the circular tube shaft 14. The square shaft 13 passes through two of the rectangular openings in sequence. The two ends of the square shaft 13 are rotatably connected to the opposite sidewalls of the combustion chamber 3. The diagonal length of the radial section of the square shaft 13 is greater than the width of the rectangular opening and less than the length of the rectangular opening. The opposite ends of the square shaft 13 are fixedly connected to the heat insulation disc 16.

[0038] In this embodiment, specifically, the end of the square shaft 13 is connected to the drive device, which drives the square shaft 13 to rotate. Because the diagonal length of the radial section of the square shaft 13 is greater than the width of the rectangular opening but less than the length of the rectangular opening, the square shaft 13 can drive the round tube shaft 14 to rotate. At the same time, the square shaft 13 and the rectangular opening move relative to each other, so the round tube shaft 14 can also move up and down slightly relative to the square shaft 13, thereby driving multiple comb teeth 15 to shake up and down. The rotating comb teeth 15 sequentially receive the straw material thrown up by the feeder 7, making the straw material disperse. The straw on the rotating carbonization feeder burns and carbonizes evenly back and forth, making the straw carbonization and combustion more complete. At the same time, the up and down shaking of the comb teeth 15 causes the carbonized straw to fall to the ground, making it easier for the subsequent rotary tiller 8 to mix the carbonized straw with the soil.

[0039] The heat-insulating disc 16 stabilizes the axial relative position of the circular tube shaft 14 and the square shaft 13, while preventing the heat generated by the carbonization and combustion of straw from being transferred to the outside of the combustion chamber 3.

[0040] like Figure 1 As shown, in a specific embodiment, an adjustment plate 17 is also included. The adjustment plate 17 is rotatably connected to the opposite side wall of the outlet pipe of the blower 9 via a pivot. An angle adjustment component is provided at the end of the pivot.

[0041] In this embodiment, specifically, the tilt angle of the adjusting plate 17 is adjusted to change the area ratio of the pipe cross-section above and below the adjusting plate 17, thereby changing the airflow above and below the carbonization spreader, and thus changing the degree of carbonization and combustion of straw on the carbonization spreader.

[0042] like Figure 1 and Figure 2 As shown, in a specific embodiment, the shredder 6 includes a shredding shaft 601 and a plurality of shredding blades 602. The plurality of shredding blades 602 are arranged sequentially on the axial side of the shredding shaft 601, and the two ends of the shredding shaft 601 are respectively rotatably connected to the opposite sidewalls of the combustion chamber 3.

[0043] In this embodiment, the shredding blades 602 are Y-shaped, and each pair of adjacent shredding blades 602 are staggered to avoid collisions between adjacent shredding blades 602. As the shredding shaft 601 rotates, the blades of the multiple shredding blades 602 swing in a cycle to cut the straw on the ground.

[0044] like Figure 1 and Figure 2As shown, in a specific embodiment, the ejector 7 includes an ejector shaft 701 and a plurality of ejector blades 702. The plurality of ejector blades 702 are arranged sequentially on the axial side of the ejector shaft 701, and the two ends of the ejector shaft 701 are respectively rotatably connected to the opposite sidewalls of the combustion chamber 3.

[0045] In this embodiment, specifically, the free end of the throwing blade 702 has a certain curvature. When the throwing blade 702 rotates with the throwing shaft 701, the free end of the throwing blade 702 contacts the straw on the ground and throws it backward, making it easier for the carbonization spreader to receive the straw. At the same time, during the process of the straw being thrown backward, the collecting burner provides a fire source for the combustion of the straw.

[0046] like Figure 1 and Figure 2 As shown, in a specific embodiment, the rotary tiller 8 includes a rotary shaft 801 and a plurality of rotary blades 802. The plurality of rotary blades 802 are arranged sequentially on the axial side of the rotary shaft 801, and the two ends of the rotary shaft 801 are respectively rotatably connected to the opposite sidewalls of the rotary chamber 4.

[0047] In this embodiment, specifically, the rotary tiller 802 is L-shaped, with one end of the rotary tiller 802 fixedly connected to the rotary tiller shaft 801. The extension direction of the free end of the rotary tiller 802 is parallel to the axial direction of the rotary tiller shaft 801. During the rotation of the rotary tiller shaft 801, multiple rotary tillers 802 press the carbonized straw on the ground into the soil, so that the carbonized straw no longer stays on the ground, and the carbonized straw and soil are fully mixed.

[0048] like Figure 1 and Figure 2 As shown, in a specific embodiment, it also includes a copying arm 18, a connecting plate 19, and a partition plate 20. One end of the copying arm 18 is hinged to the side of the frame 1, and the other end is connected to the traveling wheel 2. The middle part of the copying arm 18 is connected to the rear end of the frame 1 through a hydraulic rod 21. One end of the connecting plate 19 is hinged to the rear end of the frame 1, and the other end is connected to the pressing roller 5. The middle part of the connecting plate 19 is connected to the rear end of the frame 1 through a first elastic component 22. One end of the partition plate 20 is hinged to the outside of the connecting plate 19, and the other end of the partition plate 20 extends outward from the pressing roller 5. The middle part of the partition plate 20 is connected to the connecting plate 19 through a second elastic component 23.

[0049] In this embodiment, specifically, when the tractor pulls the machine on a road surface, the hydraulic rod 21 extends, causing the contour arm to rotate downwards with one end as the center, thereby raising the height of the frame 1 and preventing the chopper 6, the feeder 7, and the rotary tiller 8 from contacting the ground; when the tractor pulls the machine in a field, the hydraulic rod 21 retracts, causing the contour arm to rotate upwards with one end as the center, thereby lowering the height of the frame 1, allowing the chopper 6, the feeder 7, and the rotary tiller 8 to approach the field surface and perform their respective functions.

[0050] Specifically, there are two connecting plates 19. When the pressing roller 5 is pressing soil containing carbonized straw, the pressing roller 5 can also swing up and down around one end of the connecting plate 19, so that the pressing roller 5 can adapt to the undulation of the ground.

[0051] Specifically, there are two separator plates 20. The other end of the separator plate 20 extends outward at an angle towards the outside of the press roller 5. As the frame 1 moves forward, the separator plate 20 pushes the soil on both sides of the frame 1 outward, thereby separating the area traversed by the frame 1 from the area outside the frame 1, thus separating the carbonized soil from the uncarbonized soil. At the same time, one end of the separator plate 20 is hinged to the outside of the connecting plate 19. The separator plate 20 can swing up and down around the hinge point, allowing it to adapt to the undulations of the ground. Meanwhile, the amount of contraction of the second elastic component 23 has a limit. When the second elastic component 23 is in its minimum length state, it can limit the other end of the separator plate 20 from excessively tilting up, thereby ensuring that the separator plate 20 continuously pushes the soil outward. The separator plate 20 scrapes the carbonized soil and the uncarbonized straw apart, preventing the carbonized straw from igniting the uncarbonized straw next to it.

[0052] The first elastic component 22 and the second elastic component 23 have the same structure. Taking the first elastic component 22 as an example, the following is an explanation:

[0053] like Figure 3 As shown, the first elastic component 22 includes a spring 2201, a sleeve 2202, and a support rod 2203. The spring 2201 is located inside the sleeve 2202. One end of the sleeve 2202 is hinged to the rear end of the frame 1. One end of the support rod 2203 passes through the sleeve 2202 and the spring 2201 and is fixedly connected to the baffle 2204. The other end of the sleeve 2202 is fixedly connected to the retaining ring 2205. The other end of the support rod 2203 is hinged to the middle of the connecting plate 19. When the machine travels on the road surface, the contour arm rotates downward under the action of the hydraulic rod 21. When the frame 1 is raised, although the pressing roller 5 can drive the connecting plate 19 to rotate downward, the spring of the first elastic component 22 is compressed. The maximum length of the first elastic component 22 limits the downward rotation angle of the connecting plate 19, preventing the pressing roller 5 from contacting the road surface. Similarly, the second elastic component 23 can also limit the downward rotation angle of the partition, preventing the partition from contacting the road surface.

[0054] In a specific embodiment, a power distribution reducer 24 is also included. The power distribution reducer 24 is installed at the front end of the frame 1. The front end of the power distribution reducer 24 is connected to the power input shaft. The left output shaft of the power distribution reducer 24 is connected to the first pulley 25. The shredder 6 is coaxially connected to the second pulley 26. The thrower 7 is coaxially connected to the third pulley 27 and the first sprocket 28. The carbonization cloth is coaxially connected to the second sprocket 29. The impeller of the blower 9 is coaxially connected to the fourth pulley 30. The first pulley 25 is driven by the second pulley 26 and the third pulley 27 respectively. The third pulley 27 is driven by the fourth pulley 30. The first sprocket 28 is connected to the second sprocket 29 via a chain.

[0055] In this embodiment, specifically, the power input shaft at its front end is connected to the tractor's engine, and the output shaft on the left side sequentially drives the first pulley 25, the second pulley 26, the third pulley 27, the fourth pulley 30, the first sprocket 28, and the second sprocket 29 to rotate. The direction of rotation is opposite to the direction of rotation of the traveling wheel 2, that is, the traveling wheel 2 rotates forward, while the chopping shaft 601, the throwing shaft 701, and the square shaft 13 rotate backward, while providing power to the impeller of the blower 9.

[0056] In a specific embodiment, the right output shaft of the power distribution reducer 24 is connected to the fifth pulley 31, the impeller of the suction fan 10 is coaxially connected to the sixth pulley 32, the rotary tiller 8 is coaxially connected to the seventh pulley 33, and the fifth pulley 31 is respectively driven to the sixth pulley 32 and the seventh pulley 33.

[0057] In this embodiment, specifically, the power distribution reducer 24 adopts a right-angle gearbox, which includes a first bevel gear, a second bevel gear, and a third bevel gear meshing in sequence. The first bevel gear is coaxially connected to the power input shaft, the second bevel gear is coaxially connected to the left output shaft, and the third bevel gear is coaxially connected to the right output shaft, so that the rotation direction of the right output shaft is opposite to that of the left output shaft. The right output shaft drives the fifth pulley 31 and the seventh pulley 33 in sequence, so that the rotation direction of the rotary tillage shaft 801 is the same as that of the traveling wheel 2, and at the same time provides power to the impeller of the suction fan 10.

[0058] In a specific embodiment, it also includes a plurality of baffles 34, which are arranged sequentially around the lower periphery of the frame 1.

[0059] In this embodiment, specifically, the baffle plate 34 is made of rubber, and multiple baffle plates 34 are riveted to the lower periphery of the frame 1 in sequence to prevent the smoke and dust from burning and carbonizing straw from flowing out of the machine body and polluting the environment.

[0060] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A straw carbonization and returning-to-field machine, characterized in that, include: A frame, the front end of which is connected to a traction head and the rear end of which is connected to a traveling wheel; The processing unit includes a combustion chamber, a rotary tillage chamber, and a press roller arranged sequentially along the frame. The combustion chamber is equipped with a chopper, a feeder, a material collector burner, and a carbonization spreader arranged sequentially. The rotary tillage chamber is equipped with a rotary tiller. The air intake section includes a blower and a suction fan. The outlet pipe of the blower is connected to the rear end of the combustion chamber, the inlet pipe of the suction fan is connected to the upper end of the combustion chamber, and the outlet pipe of the suction fan is connected to the rotary tillage chamber.

2. The straw carbonization and returning-to-field machine according to claim 1, characterized in that, The carbonization feeder includes a square shaft, a circular tube shaft, and multiple comb teeth. Multiple comb teeth are axially arranged on the sidewall of the circular tube shaft. Rectangular openings are provided on both ends of the circular tube shaft. The square shaft passes through two of the rectangular openings in sequence. The two ends of the square shaft are rotatably connected to the opposite sidewalls of the combustion chamber. The diagonal length of the radial section of the square shaft is greater than the width of the rectangular opening and less than the length of the rectangular opening. The opposite ends of the square shaft are fixedly connected to the heat insulation disc.

3. The straw carbonization and returning machine according to claim 1, characterized in that, It also includes an adjustment plate, which is rotatably connected to the opposite side wall of the blower outlet pipe via a pivot, and the end of the pivot is provided with an angle adjustment component.

4. The straw carbonization and returning-to-field machine according to claim 1, characterized in that, The shredder includes a shredding shaft and multiple shredding blades, which are arranged sequentially on the side of the shredding shaft. The two ends of the shredding shaft are rotatably connected to the opposite sidewalls of the combustion chamber.

5. The straw carbonization and returning-to-field machine according to claim 1, characterized in that, The ejector includes an ejector shaft and multiple ejector blades. The multiple ejector blades are arranged sequentially on the side of the ejector shaft, and the two ends of the ejector shaft are rotatably connected to the opposite sidewalls of the combustion chamber.

6. The straw carbonization and returning-to-field machine according to claim 1, characterized in that, The rotary tiller includes a rotary shaft and multiple rotary blades, with the multiple rotary blades arranged sequentially on the side of the rotary shaft. The two ends of the rotary shaft are rotatably connected to the opposite side walls of the rotary chamber.

7. The straw carbonization and returning-to-field machine according to claim 1, characterized in that, It also includes a copying arm, a connecting plate, and a partition plate. One end of the copying arm is hinged to the side of the frame, and the other end is connected to the traveling wheel. The middle part of the copying arm is connected to the rear end of the frame via a hydraulic rod. One end of the connecting plate is hinged to the rear end of the frame, and the other end is connected to the press roller. The middle part of the connecting plate is connected to the rear end of the frame via a first elastic component. One end of the partition plate is hinged to the outside of the connecting plate, and the other end of the partition plate extends outward toward the outside of the press roller. The middle part of the partition plate is connected to the connecting plate via a second elastic component.

8. The straw carbonization and returning-to-field machine according to claim 1, characterized in that, It also includes a power distribution reducer, which is mounted at the front end of the frame. The front end of the power distribution reducer is connected to the power input shaft. The left output shaft of the power distribution reducer is connected to the first pulley. The shredder is coaxially connected to the second pulley. The thrower is coaxially connected to the third pulley and the first sprocket. The carbonization cloth is coaxially connected to the second sprocket. The impeller of the blower is coaxially connected to the fourth pulley. The first pulley is driven by the second pulley and the third pulley. The third pulley is driven by the fourth pulley. The first sprocket is connected to the second sprocket via a chain.

9. The straw carbonization and returning-to-field machine according to claim 8, characterized in that, The right output shaft of the power distribution reducer is connected to the fifth pulley, the impeller of the suction fan is coaxially connected to the sixth pulley, the rotary tiller is coaxially connected to the seventh pulley, and the fifth pulley is connected to the sixth and seventh pulleys respectively.

10. The straw carbonization and returning-to-field machine according to claim 1, characterized in that, It also includes multiple baffles, which are arranged sequentially around the lower perimeter of the frame.

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