Flame straw carbonizing, rotary burying and returning all-in-one machine

Abstract

The invention discloses a flame straw carbonization and rotary burying returning-to-field all-in-one machine which comprises a power mechanism and a rack, a straw carbonization mechanism for providing rapid incineration and carbonization flames is arranged on the front portion of a cavity of the rack, and a rotary burying returning-to-field mechanism capable of burying straw incineration and carbonization products into soil in a rotary mode is arranged on the rear portion of the cavity of the rack. A carbonization area cover plate of the straw carbonization mechanism and side protection plates on the two sides of the carbonization area cover plate are combined to form a relatively-closed straw carbonization area with an opening in the front side, and a rotary tillage cover plate of the rotary burying and returning mechanism and side protection plates on the two sides of the rotary tillage and returning mechanism are combined to form a relatively-closed rotary tillage and returning area. The smoke filtering mechanism can extract smoke entering the space between the straw carbonization area and the rotary tillage field returning area after straw incineration and carbonization and smoke generated when straw incineration and carbonization products on the rear side of the rotary tillage field returning area are mixed into soil, and the smoke and the smoke are discharged after being filtered. According to the all-in-one machine, straw can be rapidly carbonized and returned to the field after crops are harvested, the soil quality can be improved, the breeding risk of plant diseases and insect pests can be reduced, the sustainability of agricultural production can be effectively improved, and environment friendliness and high efficiency are achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of agricultural machinery and equipment, and specifically relates to a flame straw carbonization rotary tillage and returning machine. Background Art

[0002] China has a large amount of straw resources with a wide distribution area. According to statistics, the straw production in 2021 was 856 million tons, and the comprehensive utilization rate was 88.1%. Straw is a valuable renewable resource. However, for such a high-yielding straw, a large amount of manpower and material resources are required for treatment and utilization, resulting in low comprehensive development and utilization rate of straw. The phenomena of random discarding and on-site burning are serious, causing serious waste of resources and damage to the ecological environment. At present, direct straw returning to the field and straw leaving the field - biochar - returning to the field are two main ways of straw resource utilization.

[0003] Direct straw returning to the field is one of the main utilization methods. As an important part of conservation tillage, direct straw returning to the field can increase soil nutrients, improve soil structure, and continuously increase soil fertility. When implementing direct straw returning to the field, it is necessary to mix and bury the straw into the soil. According to local policies and planting habits, it can be divided into full straw returning to the field and partial straw returning to the field. Full straw returning to the field means that all the straw and root stubbles are returned to the field after harvest; partial straw returning to the field means that the straw is removed from the field after harvest, and only the root stubbles are returned to the field. In some areas, due to the low temperature, full straw returning to the field may cause problems such as difficult decomposition of straw, plant diseases and insect pests, and also lead to a decrease in soil moisture content, affecting the emergence rate of crops.

[0004] Straw leaving the field - biochar - returning to the field is to collect the harvested straw, transport it to a straw carbonization plant, make it into finished biochar, and then pulverize and return it to the field. Biochar can not only effectively improve soil structure, increase soil fertility, but also enhance the soil's water retention capacity and nutrient adsorption capacity, thereby reducing the loss of fertilizers, improving the drought resistance and disease resistance of crops. Biochar can exist stably in the soil for a long time, sequester carbon elements as a carbon sink, reduce greenhouse gas emissions, and is of great significance for coping with climate change. Compared with direct straw returning to the field, biochar returning to the field can avoid the emission of greenhouse gases such as methane and carbon dioxide generated during the decomposition of straw, reducing the impact on the environment. At the same time, the carbonization process can effectively kill potential plant diseases and insect pests and weed seeds in the straw, further improving the sanitation level of farmland. Due to the porous structure of biochar, it can also provide a suitable living environment for soil microorganisms, helping to enhance soil biodiversity, promote soil health and crop growth.

[0005] The straw flame carbonization and returning to field technology refers to directly converting straw into biochar in the field to improve soil structure and increase soil fertility. This technology can not only effectively avoid problems such as weed growth and pest breeding that may occur during the direct straw returning to field process, but also solve the challenges brought by problems such as difficult straw collection, storage and transportation, and high production cost of biochar in the "field leaving - carbonization - returning to field" mode. Through flame carbonization and returning to field, the straw is quickly carbonized in the field, and the formed biochar can quickly return to the soil, enhancing the water retention, air permeability and nutrient retention capacity of the soil, and can exist stably for a long time, reducing greenhouse gas emissions as a carbon sink. The flame carbonization and returning to field technology is simple and fast, and the operation process is green and environmentally friendly, suitable for rapid implementation during the busy farming season.

[0006] Existing straw flame carbonization and returning to field machinery and equipment utilize the biomass pyrolysis carbonization process technology. The straw collection device in front of the equipment crushes and compresses the straw into particles, transports them to the pyrolysis carbonization furnace of the equipment, continuously feeds the straw particles into the feeding port from above the equipment, and outputs the finished biochar from below the equipment. Although the current equipment avoids the defect of complicated straw treatment procedures in the process of field leaving - carbonization - returning to field again, its straw carbonization rate is low, and the biochar produced by it still needs to be pulverized and returned to the field by a rotary tiller. The functions of straw carbonization and returning to the soil are not integrated into the same piece of equipment. And the current equipment only processes the straw that can be collected on the ground surface, and does not carbonize the stubble on the ground surface, and cannot disinfect and kill pests, diseases and weed seeds existing in the surface soil and stubble. Summary of the Invention

[0007] The purpose of the present invention is to provide a flame straw carbonization and rotary burying and returning to field integrated machine aiming at the problems existing in the prior art. The flame straw carbonization and rotary burying and returning to field integrated machine is used for quickly carbonizing and returning straw to the field after crop harvesting in agricultural production, the working process is environmentally friendly and clean, and the machine equipment can operate stably for a long time.

[0008] The purpose of the present invention is solved by the following technical solutions: A kind of integrated machine for flame straw carbonization and rotary burying and returning to the field, characterized in that: the integrated machine includes a power mechanism, a frame, a straw carbonization mechanism, a smoke filtration mechanism, and a rotary burying and returning to the field mechanism. The front part of the cavity of the frame is provided with a straw carbonization mechanism, and the rear part is provided with a rotary burying and returning to the field mechanism. The straw carbonization mechanism can provide a rapid incineration and carbonization flame for the straw, and the rotary burying and returning to the field mechanism driven by the power mechanism can rotary bury the products of straw incineration and carbonization into the soil. The carbonization area cover plate of the straw carbonization mechanism and the side guard plates on both sides of it are combined to form a relatively closed straw carbonization area with an opening at the front side. The rotary tillage cover plate of the rotary burying and returning to the field mechanism and the side guard plates on both sides of it are combined to form a relatively closed rotary tillage and returning to the field area; the smoke filtration mechanism can simultaneously extract the smoke that enters between the straw carbonization area and the rotary tillage and returning to the field area after straw incineration and carbonization, as well as the smoke generated when the straw incineration and carbonization products behind the rotary tillage and returning to the field area are mixed into the soil, and discharge it after filtration.

[0009] The carbonization area cover plate is fixedly installed on the support cross beam at the front of the frame, and both ends of the carbonization area cover plate are respectively abutted against the side guard plates. A number of high-temperature flame nozzles equipped with electronic igniters are arranged on the mounting holes of the carbonization area cover plate. The high-temperature flame nozzles are connected to the valve of the gas tank fixed on the power mechanism through a gas delivery pipe; the high-temperature flame nozzles are arranged obliquely forward from top to bottom on the incineration area cover plate, and the distance between the high-temperature flame nozzles is 20 cm - 25 cm. The high-temperature flame nozzles with the jet ports 25 cm - 30 cm away from the ground can eject carbonization flames with a temperature of 1150 °C - 1280 °C.

[0010] A front smoke collecting cover plate for closing the top of the corresponding cavity of the frame is arranged between the carbonization area cover plate and the rotary tillage cover plate. A smoke exhaust hole communicating with the smoke filtration box is provided on the front smoke collecting cover plate. The front edge of the front smoke collecting cover plate is provided with a front smoke collecting partition board, and the rear edge is provided with a rear smoke collecting partition board. The front smoke collecting cover plate, the front smoke collecting partition board, the rear smoke collecting partition board and the side guard plates on both sides form a relatively closed front smoke collecting area to improve the smoke purification efficiency; the lower edge of the front smoke collecting partition board is 4 cm - 8 cm away from the ground and the lower edge of the front smoke collecting partition board is lower than the lower edge of the rear smoke collecting partition board to improve the sealing of the straw carbonization area and prevent soil accumulation on the front side of the rotary tillage knife roller.

[0011] A rear smoke collecting cover plate is arranged at the rear side of the rotary tillage cover plate. A smoke exhaust hole communicating with the smoke filtration box is provided on the rear smoke collecting cover plate, and a soil covering drag plate capable of adjusting the inclination angle is arranged on the rear smoke collecting cover plate. The rear smoke collecting cover plate, the soil covering drag plate and the side guard plates on both sides form a relatively closed rear smoke collecting area to improve the smoke purification efficiency; the rear smoke collecting cover plate is generally directly welded on the support cross beam at the rear of the frame.

[0012] The described smoke filtering mechanism includes multiple groups of smoke filtering boxes, axial flow fans, and corrugated hoses. A pair of axial flow fans are respectively arranged at the front and rear inlet ends of each smoke filtering box. The axial flow fan at the front inlet end is connected to the smoke exhaust hole on the front smoke collecting cover plate through the corresponding corrugated hose, and the axial flow fan at the rear inlet end is connected to the smoke exhaust hole on the rear smoke collecting cover plate through the corresponding corrugated hose. The inner cavity of any one smoke filtering box is divided into two flue gas channels that are respectively connected to the axial flow fans at the front and rear inlet ends. On the outlet side of the flue gas channel, a filter layer and a gas deflector are arranged in sequence.

[0013] Filter layer partitions arranged in parallel are respectively arranged on both sides of the filter layer. The filter layer is arranged in the cavity formed by the filter layer partitions and the partition partition. The filter layer is composed of an inner filter layer close to the flue gas channel, a filter layer core, and an outer filter layer close to the gas deflector. The filter layer partition is a hollow metal plate, and the gas deflector is an inclined downward metal grille.

[0014] The described smoke filtering boxes are distributed and installed on floating brackets. Springs are respectively arranged on the spring seats configured on the front and rear sides of the floating brackets. The springs can be sleeved on the floating bracket bases arranged obliquely on the outer wall of the side guard plate, so that the floating bracket can buffer relative to the frame. The floating bracket is fixedly connected to the ground wheel through a rigid connection. The ground wheel for profiling the ground surface can make the floating bracket and the smoke filtering box always on a relative plane. The floating bracket is located on the top of the rotary tillage and returning-to-field mechanism. This solves the problem of the high-frequency vibration impact on the smoke filtering mechanism during the rotary tillage process to ensure the stable operation of the smoke filtering mechanism.

[0015] The described frame is composed of at least three support crossbeams and two side guard plates combined. Between the front support crossbeam and the middle support crossbeam, a straw carbonization area and a front smoke collecting area are arranged front and rear. Between the middle support crossbeam and the rear support crossbeam, a rotary tillage and returning-to-field area is arranged. Behind the rear support crossbeam, a rear smoke collecting area is arranged. A frame connection fixing plate is installed on the front support crossbeam. A suspension bracket is movably installed on the frame connection fixing plate, and the frame connection fixing plate is connected to the lower lifting arm in the power transmission mechanism. The suspension bracket is movably connected to the frame lifting seat on the middle support crossbeam through a frame pull rod, and the suspension bracket is connected to the upper lifting arm in the power transmission mechanism. Reducer support seats are respectively arranged on the middle support crossbeam and the rear support crossbeam, and a reducer is installed on the reducer support seats. The reducer is connected to the rotary tillage knife roller to drive the rotary tillage knife roller, and the reducer is connected to the power output shaft in the power transmission mechanism through a universal joint and a transmission shaft. The side guard plate is configured with a knife roller installation card slot for installing the rotary tillage knife roller.

[0016] The rotary burying and returning mechanism described above includes a rotary tillage cutter roller and a rotary tillage cover plate located at the top of the rotary tillage cutter roller. The roller shaft bearing end covers at both ends of the rotary tillage cutter roller are installed on the cutter roller installation slots on the side guard plates, and a roller shaft limit baffle is arranged below each roller shaft bearing end cover. The rotary burying and returning mechanism also includes a soil covering drag plate. A drag plate adjusting rod capable of adjusting the angle of the soil covering drag plate is installed on the drag plate support seat, and the drag plate support seat is installed on the rear smoke collecting cover plate. Alternatively, both ends of the soil covering drag plate are hinged to the side guard plates respectively, or the upper part of the soil covering drag plate is hinged to the rear edge of the rear smoke collecting cover plate.

[0017] The integrated machine described above also includes a spray and smoke elimination mechanism arranged at the tail of the integrated machine. The spray and smoke elimination mechanism can further eliminate the smoke in the air, reduce the soil temperature after soil covering, and prevent the soil covering drag plate from raising dust. The spray and smoke elimination mechanism includes a water tank, a water pump, a water delivery pipe, a spray rod, a fan-shaped atomizing nozzle, and a spray support plate. The water tank and the water pump are arranged on the power mechanism. The spray rod with a fan-shaped atomizing nozzle is installed on the floating bracket of the smoke filtering mechanism through the spray support plate. The spray rod is communicated with the water tank through the water delivery pipe with a water pump.

[0018] The present invention has the following advantages compared with the prior art: The flame straw carbonization rotary burying and returning integrated machine provided by the present invention has remarkable effects, which are mainly reflected in aspects such as high-efficiency carbonization, soil improvement, pest and disease inhibition, reduction of operation costs, environmental protection and energy conservation, etc. The flame carbonization mechanism can directly convert straw into biochar in the field and evenly return it to the field through the rotary tillage and returning mechanism, effectively improving the soil structure and increasing soil fertility. At the same time, the high temperature during the carbonization process kills the germs and insect eggs in the straw, reducing the risk of pest and disease breeding and the demand for chemical fungicides.

[0019] The flame straw carbonization rotary burying and returning integrated machine provided by the present invention aims to solve the problems of environmental pollution and low operation efficiency existing in the process of straw returning to the field in the prior art. The equipment collects and processes the smoke generated by straw carbonization through the smoke filtering mechanism, effectively reducing the emission of harmful gases. The equipped smoke filtering mechanism and spray and smoke elimination mechanism can inhibit and remove dust during the operation process, improving the quality of the operation environment. The equipment optimizes the working process of straw returning to the field, which can not only improve the fertility level of the soil, reduce the possibility of pest and disease occurrence, but also promote the sustainable development of agricultural production, providing a technical solution integrating high efficiency and environmental protection for straw treatment.

[0020] Compared with the traditional straw field separation treatment, the flame straw carbonization rotary embedding and returning machine provided by the present invention reduces the transportation and storage costs, simplifies the operation process, greatly improves the efficiency of field operations. During the operation process, the generated smoke is filtered and discharged, and the generated soot is effectively suppressed. The equipment can ensure stable operation, meet the environmental protection requirements, promote the sustainable development of agriculture, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG. Figure 1 is a schematic diagram of the overall structure of the flame straw carbonization rotary embedding and returning machine provided by the present invention; FIG. Figure 2 is a schematic diagram of the structure of the crawler-type hybrid power platform provided by the present invention; FIG. Figure 3 is a schematic diagram of the frame structure of the flame straw carbonization rotary embedding and returning machine provided by the present invention; FIG. Figure 4 is a schematic diagram of the structure of the straw carbonization mechanism provided by the present invention; FIG. Figure 5 is a schematic diagram of the installation position of the straw carbonization mechanism on the frame provided by the present invention; FIG. Figure 6 is a schematic diagram of the structure of the smoke filtering mechanism provided by the present invention; FIG. Figure 7 is a schematic cross-sectional view of the internal structure of the smoke filtering box provided by the present invention; FIG. Figure 8 is a schematic diagram of the installation position of the smoke filtering mechanism on the frame provided by the present invention; FIG. Figure 9 is a schematic diagram of the installation position of the rotary embedding and returning mechanism on the frame provided by the present invention; FIG. Figure 10 is a schematic diagram of the installation position of the spray smoke elimination mechanism on the frame provided by the present invention.

[0022] Wherein: 1 - power mechanism; 10 - rubber crawler; 11 - platform frame; 2 - power transmission mechanism; 20 - power output shaft; 21 - transmission shaft; 22 - universal joint; 23 - reducer; 24 - upper lifting arm; 25 - lower lifting arm; 3 - frame; 30 - support cross beam; 31 - side guard plate; 32 - cutter roller installation slot; 33 - reducer support seat; 34 - frame lifting seat; 35 - floating bracket base; 36 - frame connection fixing plate; 37 - suspension bracket; 38 - frame tie rod; 4 - straw carbonization mechanism; 40 - gas tank; 41 - gas delivery pipe; 42 - high-temperature flame nozzle; 43 - carbonization area cover plate; 5 - smoke filtration mechanism; 50 - smoke filtration box; 501 - partition board; 502 - flue gas passage; 503 - filter layer; 504 - filter layer partition board; 505 - gas deflector; 51 - axial flow fan; 52 - corrugated pipe; 53 - smoke exhaust hole; 54 - front smoke collection cover plate; 55 - front smoke collection partition board; 56 - rear smoke collection partition board; 57 - rear smoke collection cover plate; 58 - floating bracket; 59 - spring seat; 510 - spring; 511 - ground wheel; 6 - rotary tillage and soil returning mechanism; 60 - rotary tillage cutter roller; 61 - roller shaft bearing end cover; 62 - roller shaft limit baffle; 63 - rotary tillage cover plate; 64 - drag plate support seat; 65 - drag plate adjusting rod; 66 - soil covering drag plate; 7 - spray and smoke elimination mechanism; 70 - water tank; 71 - water pump; 72 - water delivery pipe; 73 - spray rod; 74 - fan-shaped atomizing nozzle; 75 - spray support plate. Detailed implementation mode

[0023] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments.

[0024] As Figure 1-10 shown, a flame straw carbonization rotary tillage and soil returning integrated machine includes a power mechanism 1, a power transmission mechanism 2, a frame 3, a straw carbonization mechanism 4, a smoke filtration mechanism 5, a rotary tillage and soil returning mechanism 6, and a spray and smoke elimination mechanism 7. The straw carbonization mechanism 4 is arranged at the front part of the cavity of the frame 3, and the rotary tillage and soil returning mechanism 6 is arranged at the rear part. The straw carbonization mechanism 4 can provide a rapid incineration and carbonization flame for the straw, and the rotary tillage and soil returning mechanism 6 driven by the power mechanism 1 can rotary bury the products of straw incineration and carbonization into the soil. The carbonization area cover plate 43 of the straw carbonization mechanism 4 and the side guard plates 31 on both sides thereof form a relatively closed straw carbonization area with a front-side opening. The rotary tillage cover plate 63 of the rotary tillage and soil returning mechanism 6 and the side guard plates 31 on both sides thereof form a relatively closed rotary tillage and soil returning area; the smoke filtration mechanism 5 can simultaneously extract the smoke entering between the straw carbonization area and the rotary tillage and soil returning area after straw incineration and carbonization, as well as the smoke generated when the straw incineration and carbonization products at the rear side of the rotary tillage and soil returning area are mixed into the soil, and discharge it after filtration.

[0025] As Figure 1-2As shown in the figure, the power mechanism 1 adopts a crawler-type hybrid platform. The crawler-type hybrid platform provides direct power through a diesel engine and is connected with a small generator to convert a part of the kinetic energy into electricity and store it in the storage battery. The electricity of the storage battery is used to drive the equipment to move and supply power to the axial flow fan 51 and the water pump 71. The crawler-type hybrid platform adopts rubber crawlers 10, which have good cross-country performance and can adapt to various complex terrain conditions. A platform frame 11 is arranged on the top of the crawler-type hybrid platform. A water tank 70 and a water pump 71 for the spray smoke elimination mechanism 7, a gas tank 40 for the straw carbonization mechanism 4 and other heavy equipment are fixedly arranged on the platform frame 11. The water tank 70 is used to supply water to the spray smoke elimination mechanism 7 and can also balance the center of gravity of the equipment. The water pump 71 is used to pressurize the water of the spray smoke elimination mechanism 7 and has the characteristics of small volume, low energy consumption and high working efficiency. The gas tank 40 is used to provide liquefied petroleum gas for the straw carbonization mechanism 4 and is placed on the platform frame 11 to improve the safety of the equipment during operation. A power transmission mechanism 2 is configured at the tail of the crawler-type hybrid platform, including a power output shaft 20, a transmission shaft 21, a universal joint 22, a speed reducer 23, an upper lifting arm 24 and a lower lifting arm 25 for driving the frame 3 of the integrated machine. The power output shaft 20 is used to output power. The transmission shaft 21 is used to effectively transmit the power from the power output shaft 20 to other components. Since the distance between the power output shaft 21 and the speed reducer 23 is relatively long, using the transmission shaft 21 can improve the efficiency of power transmission and ensure stable transmission. The universal joint 22 is used to deflect the angle of the power output axis, so that when used in pairs, the smoothness of power output can be maintained and output fluctuations can be avoided. The speed reducer 23 transmits power to the rotary tillage cutter roller 60 through the connection with the transmission shaft 21 to ensure the efficient operation of the rotary tillage cutter roller 60. The power output shaft 20 is connected with the rotary tillage cutter roller 60 of the rotary tillage and soil burial returning mechanism 6 through the transmission shaft 21, the universal joint 22 and the speed reducer 23 to transmit the power provided by the engine to the rotary tillage and soil burial returning mechanism 6 for rotary tillage and soil crushing. The upper lifting arm 24 and the lower lifting arm 25 are used to control the attitude of the suspension bracket 37 to lift or lower the working implement.

[0026] As Figure 3As shown in the figure, the frame 3 includes a support cross beam 30, side guard plates 31, a cutter roller installation slot 32, a reducer support seat 33, a frame lifting seat 34, a floating bracket base 35, a frame connection fixing plate 36, a suspension bracket 37, and a frame tie rod 38. Three support cross beams 30 and two side guard plates 31 are configured with a support longitudinal beam to provide the main support of the integrated machine, ensuring the strength and stability of the frame 3 during operation; the side guard plates 31 are used to prevent the splashing of soil fragments during operation, and at the same time effectively isolate the flame from the straw in other areas to prevent accidental combustion, and cooperate with the carbonization area cover plate 43 and the front smoke collecting partition 55 to optimize the centralized utilization of the high-temperature flame heat and improve the carbonization efficiency; the cutter roller installation slot 32 is used to fixedly install the rotary tillage cutter roller 60 to ensure the coaxiality and stability of its operation; the reducer support seat 33 is used to stably install the reducer 23 to ensure the stability of power transmission; the frame lifting seat 34 is located on the middle support cross beam 30 and cooperates with the frame tie rod 38 to lift the frame 3 during suspension, facilitating the movement and transportation of the equipment in the field; the floating bracket base 35 is flexibly connected to the floating bracket 58 through a spring 510 to adapt to complex terrains and ensure the smoothness of the operation process; the frame connection fixing plate 36 is used to connect the frame 3 to the lower lifting arm 25 and is part of the three-point suspension mechanism to ensure the stability of the frame 3 during suspension; the suspension bracket 37 is used to connect external power equipment such as a crawler hybrid power platform or a tractor, facilitating the traction and operation of the integrated machine; the frame tie rod 38 is used to connect the suspension bracket 37 and the frame 3 to disperse the pulling force on the suspension bracket 37 and reduce the torque on the three-point suspension mechanism, improving the structural strength of the frame 3. Additionally, it should be added that the distribution order of the three support cross beams 30 and each cover plate from front to back is: the front support cross beam 30, the carbonization area cover plate 43, the front smoke collecting cover plate 54, the middle support cross beam 30, the rotary tillage cover plate 63, the rear support cross beam 30, the rear smoke collecting cover plate 57.

[0027] As Figure 4-5 shown in the figure, the straw carbonization mechanism 4, the straw carbonization mechanism 4 includes a gas tank 40, a gas delivery pipe 41, a high-temperature flame nozzle 42, and a carbonization area cover plate 43. The gas delivery pipe 41 connects the gas tank 40 and the high-temperature flame nozzle 42 to ensure the continuity and stability of the combustion process; the high-temperature flame nozzle 42 is arranged on the carbonization area cover plate 43 of the straw carbonization area to provide high-temperature flame to quickly carbonize the straw, and the electronic ignition mechanism is integrated with the high-temperature flame nozzle 42 to automatically ignite the flame through electronic ignition; the carbonization area cover plate 43 and the side guard plate 31 cooperate to isolate the high temperature generated by the straw combustion and effectively concentrate the generated heat, thereby improving the carbonization efficiency of the straw. The carbonization area cover plate 43 and the front smoke collecting cover plate 54 are integrally formed for easy installation.

[0028] As Figure 6-8As shown in the figure, the smoke filtering mechanism 5 includes a smoke filtering box 50, an axial flow fan 51, a corrugated pipe 52, a smoke exhaust hole 53, a front smoke collecting cover plate 54, a front smoke collecting partition plate 55, a rear smoke collecting partition plate 56, a rear smoke collecting cover plate 57, a floating bracket 58, a spring seat 59, a spring 510, and a ground wheel 511. The axial flow fan 51 can be used to guide the flue gas generated during the carbonization process from the carbonization area to the smoke filtering box 50 and create a negative pressure environment in the collection area, thereby realizing the centralized collection of flue gas. The corrugated pipe 52 is used to connect the axial flow fan 51 with the front smoke collecting area and the front smoke collecting area. The corrugated pipe 52 is designed with high temperature resistance to ensure the effective transmission of flue gas under high temperature conditions. The smoke exhaust holes 53 are provided on the front smoke collecting cover plate 54 and the rear smoke collecting cover plate 57. There are 8 smoke exhaust holes 53 respectively on the front smoke collecting cover plate 54 and the rear smoke collecting cover plate 57, which are used to efficiently guide the flue gas in the area to the smoke filtering box 50 for treatment. The front smoke collecting cover plate 54 is used to close the top of the front smoke collecting area, providing installation support for the smoke exhaust holes 53 and the corrugated pipe 52. The front smoke collecting cover plate 54 is designed with both sealing and stability. Together with the side guard plate 31, the front smoke collecting partition plate 55 and the rear smoke collecting partition plate 56, it constitutes the front smoke collecting area. The front smoke collecting area is separated from the straw carbonization area and the rotary burying and returning field area by partition plates, forming a closed flue gas collection space. The front smoke collecting partition plate 55 and the rear smoke collecting partition plate 56 can not only ensure the efficient centralized collection and guidance of flue gas, but also reduce the splashing of soil particles during rotary tillage, ensuring the temperature stability of the straw carbonization area, thereby optimizing the carbonization effect. The rear smoke collecting cover plate 57 covers the rear part of the rotary burying and returning field area, and together with other components, forms a sealed space to improve the flue gas collection efficiency. The floating bracket 58 is used to provide an installation position for the smoke filtering mechanism 5, isolating the vibration of the rotary tillage cover plate 63 from the smoke filtering mechanism 5. The spring 510 on the spring seat 59 is used to buffer the connection between the frame 3 and the floating bracket 58. The ground wheel 511 is used for profiling the ground surface, so that the floating bracket 58 and the smoke filtering mechanism 5 are always on a relative plane.

[0029] Based on the negative pressure air volume of the front smoke collecting area set to 960m 3 / h can meet the use requirements. Since the space is in a semi-closed state, the dynamic pressure in the front smoke collecting area is about 0.89Pa and the static pressure is about 101324.11Pa. The static pressure value is close to the standard atmospheric pressure, and the ability to overcome the pipeline resistance is strong, which can make the flue gas discharge smoothly through the pipeline. The small dynamic pressure value indicates that the air flow velocity is not high, and the ability to quickly extract a large amount of air is weak, which will not affect the straw carbonization effect.

[0030] Such as Figure 7As shown in the figure, an interlayer filtration structure is provided inside the smoke filtration box 50, which includes an interlayer that can be filled with activated carbon or other high-efficiency filtration materials, used to remove particulate matter and harmful gases generated during the carbonization process, ensure that the discharged gas meets environmental protection standards, reduce environmental pollution and improve the air quality of the operation area. The internal structure of the smoke filtration box 50 is designed with a partition baffle 501 so that two axial flow fans 51 for smoking filtration can share one box without interfering with each other and affecting the smoke filtration efficiency; the filtration layer baffle 504 is a hollow metal plate with many holes, which can increase the direct contact between the filtration layer 503 and the smoke; the gas guide plate 505 is an inclined downward metal grille, which can improve the structural strength of the smoke filtration box 50, protect the filtration layer baffle 504, and prevent rainwater from wetting the filtration layer 503; the smoke extracted by the axial flow fan 51 passes through the smoke channel 502 and is filtered by the filtration layer 503, and then is discharged from the smoke filtration box 50 along the gas guide plate 505.

[0031] The smoke filtration material is the core working component of the smoke filtration box 50. Its filtration layer 503 is composed of multiple materials. For example, activated carbon particles have a developed pore structure and a large specific surface area, which can adsorb harmful gases in the smoke generated during the carbonization of straw burning, such as sulfur dioxide, nitrogen oxides, dioxins, etc., and some volatile organic compounds, and can be used as the inner core of the filtration layer; the stainless steel wire mesh has good corrosion resistance and mechanical strength, and can be used as a primary filtration material in the inner layer of the filtration layer to filter larger particle impurities; the polyester fiber has a strong adsorption capacity for fine particulate matter and a high filtration efficiency, but its high-temperature resistance is limited, and it can be used as the outer layer of the filtration layer to enhance the adsorption capacity for fine soot.

[0032] As Figure 9 As shown in the figure, the rotary burying and returning mechanism 6 includes a rotary tillage knife roll 60, a roll shaft bearing end cover 61, a roll shaft limit baffle 62, a rotary tillage cover plate 63, a drag plate support seat 64, a drag plate adjusting rod 65, and a soil covering drag plate 66. The rotary tillage knife roll 60 is installed at the bottom of the machine, and the rotary tillage knife roll 60 is driven to rotate by a reducer 23, so as to realize the uniform mixing of carbonized straw and soil and further improve the soil structure; the roll shaft bearing end cover 61 is used to fix and cooperate with the installation of the rotary tillage knife roll 60 to ensure its stable operation; the roll shaft limit baffle 62 is used to provide limit fixation when installing the rotary tillage knife roll 60 to prevent position deviation during the assembly process; the rotary tillage cover plate 63 is located above the rotary tillage knife roll 60, and the crushed soil thrown out during rotary tillage collides and breaks with the rotary tillage cover plate 63 to make the soil more refined and uniform; the drag plate support seat 64 is used to fix the drag plate adjusting rod 65 and provide stable support; the drag plate adjusting rod 65 can adjust the length to adjust the angle of the soil covering drag plate 66 to ensure the flatness of the soil surface and enhance the combination effect of carbonized straw and soil; the soil covering drag plate 66 is located behind the rotary tillage knife roll 60, and the drag plate 66 is supported by the drag plate adjusting rod 65 to ensure the flatness of the soil surface after operation and effectively promote the mixing of carbonized straw and soil.

[0033] As Figure 10 shown, the spray smoke elimination mechanism 7 includes a water tank 70, a water pump 71, a water delivery pipe 72, a spray rod 73, a fan-shaped atomizing nozzle 74, and a spray support plate 75. The water delivery pipe 72 is used to connect the water pump 71 on the platform frame 11 to the spray rod 73 installed at the rear of the integrated machine, ensuring the stability of water flow transportation; the spray rod 73 is used to distribute the high-pressure water flow in the water delivery pipe 72 to the fan-shaped atomizing nozzles 74 on the spray rod 73; the fan-shaped atomizing nozzle 74 can atomize the transported water flow into fan-shaped water mist, which has the characteristics of uniform distribution and good coverage, can fully contact with the flue gas, quickly condense the fine particles in the flue gas, and form a wet surface on the ground; the spray support plate 75 is mainly used to fix the water delivery pipe 72, the spray rod 73, and the fan-shaped atomizing nozzle 74, ensuring their stability during operation, and can also flexibly adjust the inclination angle of the fan-shaped atomizing nozzle 74 according to the terrain and the characteristics of flue gas diffusion to improve the spraying coverage effect. Embodiment

[0034] As Figure 1 shown, the flame straw carbonization rotary embedding and returning machine provided by the present invention includes a power mechanism 1, a power transmission mechanism 2, a frame 3, a straw carbonization mechanism 4, a smoke filtration mechanism 5, a rotary embedding and returning mechanism 6, and a spray smoke elimination mechanism 7.

[0035] As Figure 2 、 Figure 3 、 Figure 9 shown, a crawler-type hybrid power platform serves as the power mechanism 1. The crawler-type hybrid power platform includes a rubber crawler 10 and a platform frame 11. A water tank 70, a water pump 71, and a gas tank 40 are arranged on the platform frame 11. An upper lifting arm 24, a lower lifting arm 25, a power output shaft 20, a transmission shaft 21, a universal joint 22, and a reducer 23 are configured at the tail of the crawler-type hybrid power platform. The traction horsepower of the crawler-type hybrid power platform is above 95HP, and the rotational speed of the power output shaft 20 is 720 r / min; the length of the platform frame 11 is 2m and the width is 1.6m; the water tank 70 has a standard volume of 1000 liters, with a length of 1.15m, a width of 0.95m, and a height of 0.98m; the water pump 71 is a DP-60 diaphragm pump with a rated voltage of 24V, a maximum flow rate of 5L / min, a maximum pressure of 0.42MPa, and an input power of 40W; the gas tank 40 is a standard 25 kg class.

[0036] As Figure 3As shown in the figure, the frame 3, which serves as the support structure of the all-in-one machine, includes a support crossbeam 30, side guard plates 31, cutter roller installation slots 32, reducer support seats 33, frame lifting seats 34, floating bracket bases 35, frame connection fixing plates 36, suspension brackets 37, and frame tie rods 38. The side guard plates 31 are 1.4 m long, 0.44 m wide, and 10 mm thick. The support crossbeam 30 is 2.28 m long, is an 8-cm rectangular square tube, and has a wall thickness of 4 mm. The frame tie rod 38 is bent from a steel plate that is 1 m long, 5 cm wide, and 8 mm thick. The frame lifting seat 34 welded to the middle support crossbeam 30 is used to connect the frame tie rod 38 to the frame 3. The horizontal height difference of the reducer support seat 33 is 9 cm. The rear smoke collection cover plate 57 is 2.28 m long and 0.14 m wide.

[0037] As Figure 4 - Figure 5 shown in the figure, the straw carbonization mechanism 4 for quickly incinerating and carbonizing straw includes a gas tank 40, a gas delivery pipe 41, a high-temperature flame nozzle 42, and a carbonization area cover plate 43. The straw carbonization area formed by the carbonization area cover plate 43 and the side guard plate 31 can effectively isolate the flame from the straw in other areas, prevent accidental combustion, optimize the concentrated utilization of the high-temperature flame heat, and improve the carbonization efficiency. There are five high-temperature flame nozzles 42 on each side of the carbonization area cover plate 43. The high-temperature flame nozzle 42 has a diameter of 108 mm and a nozzle length of 14 cm. The high-temperature flame nozzle 42 is 25 cm from the ground surface, and the interval between two nozzles is 22 cm, evenly distributed on one side. The interval between the two nozzles in the middle of the frame is about 29.5 cm. Moreover, the tail of the high-temperature flame nozzle 42 is inclined backward by 15°. The forward movement of the high-temperature flame increases the area of the straw carbonization area. The electronic ignition mechanism is integrated with the high-temperature flame nozzle 42, and its response time is less than 20 ms, and the ignition success rate reaches more than 80%. The gas delivery pipe 41 made of stainless steel has a diameter of 2 cm.

[0038] As Figure 6 - Figure 8 shown in the figure, it includes a smoke filtration mechanism 5 for collecting and filtering the smoke generated during the process of incinerating and returning to the field ( Figure 5 - Figure 7As shown in the figure, the smoke filtering mechanism 5 includes a smoke filtering box 50, an axial flow fan 51, a corrugated pipe 52, a smoke exhaust hole 53, a front smoke collecting cover plate 54, a front smoke collecting partition plate 55, a rear smoke collecting partition plate 56, a rear smoke collecting cover plate 57, a floating bracket 58, a spring seat 59, a spring 510, and a ground wheel 511. The smoke filtering box 50 includes a partition partition plate 501, a flue gas passage 502, a filtering layer 503, a filtering layer partition plate 504, and a gas guiding plate 505. The lengths of the front smoke collecting cover plate 54 and the rear smoke collecting cover plate 57 are 2.28 m and the widths are 20 cm. The smoke exhaust holes 53 are symmetric on both sides. The interval between two adjacent smoke exhaust holes 53 on the front smoke collecting cover plate 54 or the rear smoke collecting cover plate 57 is 56 cm and they are evenly distributed. The lower edge of the front smoke collecting partition plate 55 is 5 cm from the ground surface, and the lower edge of the rear smoke collecting partition plate 56 is 15 cm from the ground surface to prevent the rotary tillage cutter roller 60 from piling up soil in the front. The diameter of the corrugated pipe 52 is 120 mm and it is not easy to deform in a high-temperature environment for a long time. The axial flow fan 51 can be speed-adjusted between 24V - 72V. At a voltage of 48V, the air volume discharged by a single fan is 240 m 3 / h, which is sufficient to meet the operation requirements. The smoke filtering box 50 has a length of 33 cm, a width of 20 cm, and a height of 32 cm, and is internally provided with a 2-cm filtering interlayer that can be filled with filtering substances. The floating bracket 58 is welded by 6-cm square pipes with a wall thickness of 3 mm, and the bracket has a length of 2.7 m and a width of 0.56 m. The ground wheel 511 is selected with a diameter of 30 cm. The spring 510 has a length of 20 cm and a diameter of 4 cm.

[0039] As Figure 9 shown, the rotary tillage and soil burying mechanism 6 for burying carbonized products into the soil includes a rotary tillage cutter roller 60, a roller shaft bearing end cover 61, a roller shaft limit baffle 62, a rotary tillage cover plate 63, a drag plate support seat 64, a drag plate adjusting rod 65, and a soil covering drag plate 66. The working width of the rotary tillage and soil burying mechanism 6 is 2.3 m, the rotary tillage depth is 10 cm, the rotation speed of the rotary tillage cutter roller 60 is 246 r / min, the bevel gear ratio is 13:26, and the rotation speed of the matching power output shaft 20 is 720 r / min. The soil covering drag plate 66 has a length of 2.2 m and a width of 0.37 m, and there are reinforcing ribs in the middle.

[0040] As Figure 10 shown, the spray and smoke elimination mechanism 7 includes a water tank 70, a water pump 71, a water delivery pipe 72, a spray rod 73, a fan-shaped atomizing nozzle 74, and a spray support plate 75. The length of the spray rod support plate 75 is 26 cm, and it is welded to the rear part of the floating bracket 58. The diameter of the water delivery pipe 72 is 2 cm. There are 9 fan-shaped atomizing nozzles 74 installed on the spray rod 73. The fan-shaped atomizing nozzle 74 selects the model of 2 points - 6501, and the spraying angle is 65 degrees. At a pressure of 0.42 MPa, the flow rate of the fan-shaped atomizing nozzle 74 is 0.46 L / min. The fan-shaped atomizing nozzle 74 is about 50 cm from the ground surface, and the spraying width is about 60 cm at this height.

[0041] The working process of the flame straw carbonization rotary tillage and returning machine provided by the present invention includes: in the preparation stage before operation, the equipment is debugged before operation to ensure that all components operate normally. After the debugging is completed, the control system is started to start the operation of the machine. At this time, the gas valve is opened, and the gas is ignited through the electronic ignition mechanism to start the straw carbonization operation; the equipment travels along the predetermined path under the drive of the tracked hybrid power platform. The straw and stubble on the ground enter the straw carbonization area, and the high-temperature flame nozzle 42 releases high-concentration gas, and the outer flame temperature of the flame can reach 1150°C - 1280°C. The naturally air-dried straw with a moisture content of less than 12.4% can be carbonized within 2 seconds after entering the straw carbonization area; at the same time, the rotary tillage and returning mechanism 6 evenly buries the carbonized straw into the soil to improve the soil structure. The high-temperature flame during the straw carbonization process can not only completely carbonize the straw, but also effectively burn the germs and insect eggs in the straw, and at the same time inhibit the germination of weed seeds, thereby reducing the occurrence of pests and diseases. The smoke generated during the straw carbonization process and the rotary tillage and returning operation is timely extracted and filtered by the smoke filtering mechanism 5 through the smoke exhaust hole 53; the equipped spray smoke elimination mechanism 7 can spray fine mist-like water droplets along with the operation process to effectively remove the soot in the air; this flame straw carbonization rotary tillage and returning machine can also prevent the smoke generated by the carbonized straw from escaping from the soil, ensuring that the operation environment is pollution-free and meets the environmental protection standards. After the operation is completed, the main gas valve and the equipment power system are closed, and cleaning and necessary maintenance work are carried out to ensure that the equipment maintains a good working state during the next operation.

[0042] The flame straw carbonization rotary tillage and returning machine provided by the present invention has remarkable effects, which are mainly reflected in aspects such as efficient carbonization, soil improvement, pest and disease inhibition, reduction of operation costs, and environmental protection and energy conservation, providing an innovative solution for the development of agricultural modernization. By configuring the straw carbonization mechanism 4 with high-temperature flame, the equipment can directly and quickly convert straw into biochar in the field, and with the help of the rotary tillage and returning mechanism 6, the biochar is evenly buried into the soil. This process does not require intermediate transportation and complex treatment, greatly improving the efficiency of straw treatment in the field, providing a high-quality organic matter source for the soil, and effectively enhancing the soil fertility and water retention capacity. The equipment utilizes the high-temperature effect during the carbonization process to completely kill the germs, insect eggs and other harmful organisms in the straw, reducing the occurrence probability of pests and diseases from the source. Compared with traditional methods, this technology reduces the dependence on chemical fungicides, not only ensuring the health of crops, but also reducing the potential impact of chemical use on the environment. During the operation process, the equipment is equipped with an efficient smoke filtering and dust suppression device to effectively treat the flue gas and particulate matter generated during the carbonization process, ensuring that the emissions meet the standards. The present invention provides a comprehensive and environmentally friendly straw treatment and returning solution through efficient straw carbonization technology, soil improvement, pest and disease control and smoke treatment, with broad application prospects and practical value.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the technical solutions of the embodiments of the present invention. The technologies not involved in the present invention can all be realized through the prior art.

Claims

1. A flame straw carbonization rotary burial returning machine, characterized in that: The integrated machine comprises a power mechanism (1), a frame (3), a straw carbonization mechanism (4), a smoke filtering mechanism (5), and a rotary burying and returning mechanism (6); the front part of the cavity of the frame (3) is provided with the straw carbonization mechanism (4), and the rear part is provided with the rotary burying and returning mechanism (6); the straw carbonization mechanism (4) can provide a rapid burning and carbonization flame for the straw; the rotary burying and returning mechanism (6) driven by the power mechanism (1) can rotary bury the straw burning and carbonization products into the soil; the straw carbonization mechanism (4) The carbonization zone cover plate (43) and the side guard plates (31) on both sides thereof are combined to form a relatively closed straw carbonization zone with an opening at the front side, and the rotary tillage cover plate (63) of the rotary burial returning mechanism (6) and the side guard plates (31) on both sides thereof are combined to form a relatively closed rotary tillage returning zone; the smoke filtering mechanism (5) can simultaneously extract smoke that enters between the straw carbonization zone and the rotary tillage returning zone after straw burning and carbonization, as well as smoke generated when the straw burning and carbonization products at the rear side of the rotary tillage returning zone are mixed with the soil, and discharge them after filtering.

2. The flame straw carbonization rotary burial and field returning integrated machine according to claim 1 is characterized in that: The carbonization zone cover plate (43) is fixedly mounted on the supporting crossbeam (30) at the front of the frame (3), and the two ends of the carbonization zone cover plate (43) are respectively against the side guard plates (31). A plurality of high-temperature flame nozzles (42) equipped with electronic igniters are arranged on the mounting holes of the carbonization zone cover plate (43). The high-temperature flame nozzles (42) are connected to the valve of the gas tank (40) fixed on the power mechanism (1) through the gas delivery pipe (41). The high-temperature flame nozzles (42) are arranged on the incineration zone cover plate (43) in an inclined manner from top to bottom and forward, and the spacing between the high-temperature flame nozzles (42) is 20 cm-25 cm. The high-temperature flame nozzles (13) whose spray ports are 25 cm-30 cm from the ground surface can spray carbonization flames with a temperature of 1150° C.-1280° C.

3. The flame straw carbonization rotary burial and field returning integrated machine according to claim 1 is characterized in that: A front smoke collecting cover (54) is arranged between the carbonization zone cover (43) and the rotary tillage cover (63) at the top of the cavity of the closed frame (3); a smoke exhaust hole (53) connected to the smoke filter box (50) is arranged on the front smoke collecting cover (54); a front smoke collecting baffle (55) is arranged at the front edge of the front smoke collecting cover (54); and a rear smoke collecting baffle (56) is arranged at the rear edge; the front smoke collecting cover (54), the front smoke collecting baffle (55), the rear smoke collecting baffle (56) and the side guard plates (31) on both sides form a relatively closed front smoke collecting zone to improve smoke purification efficiency; the lower edge of the front smoke collecting baffle (55) is 4 cm to 8 cm away from the ground surface and the lower edge of the front smoke collecting baffle (55) is lower than the lower edge of the rear smoke collecting baffle (56) to improve the sealing performance of the straw carbonization zone and prevent the front side of the rotary tillage roller (60) from being covered with soil.

4. The flame straw carbonization rotary burial and field returning integrated machine according to claim 1 is characterized in that: A rear smoke collecting cover (57) is arranged at the rear side of the rotary tillage cover (63); a smoke exhaust hole (53) communicating with the smoke filter box (50) is arranged on the rear smoke collecting cover (57); and a soil covering drag plate (66) capable of adjusting the tilting angle is arranged on the rear smoke collecting cover (57); the rear smoke collecting cover (57), the soil covering drag plate (66) and the side guard plates (31) on both sides form a relatively closed rear smoke collecting area, so as to improve the smoke purification efficiency.

5. The flame straw carbonization rotary burial and field returning integrated machine according to claim 1 is characterized in that: The smoke filtering mechanism (5) comprises a plurality of groups of smoke filtering boxes (50), axial flow fans (51), and bellows (52). The front and rear inlet ends of each smoke filtering box (50) are respectively provided with a pair of axial flow fans (51). The axial flow fans (51) at the front inlet end are connected to the smoke exhaust holes (53) on the front smoke collecting cover plate (54) through the corresponding bellows (52), and the axial flow fans (51) at the rear inlet end are connected to the smoke exhaust holes (53) on the rear smoke collecting cover plate (57) through the corresponding bellows (52). The inner cavity of any smoke filtering box (50) is divided into two smoke channels (502) respectively connected to the axial flow fans (51) at the front and rear inlet ends by a partitioning partition (501), and a filter layer (503) and a gas guide plate (505) are arranged in sequence on the outlet side of the smoke channel (502).

6. The flame straw carbonization rotary burial and field returning integrated machine according to claim 5 is characterized in that: Parallel filter layer partitions (504) are arranged on both sides of the filter layer (503), and the filter layer (503) is arranged in a cavity formed by the filter layer partition (504) and the partition partition (501); the filter layer (503) is composed of an inner filter layer adjacent to the smoke channel (502), an inner core of the filter layer, and an outer filter layer adjacent to the gas guide plate (505); the filter layer partition (504) is a hollow metal plate, and the gas guide plate (505) is a metal grille inclined downward.

7. The flame straw carbonization rotary burial and field returning integrated machine according to claim 5 is characterized by: The smoke filter box (50) is distributed and installed on the floating bracket (58). Springs (510) are respectively arranged on the spring seats (59) arranged on the front and rear sides of the floating bracket (58). The springs (510) can be sleeved on the floating bracket base (35) arranged obliquely on the outer wall of the side guard plate (31), so that the floating bracket (58) can buffer relative to the frame (3); the floating bracket (58) is fixed to the ground wheel (511) through a rigid connection, and the ground wheel (511) used for contouring the ground surface can make the floating bracket (58) and the smoke filter box (50) always on a relative plane; the floating bracket (58) is located on the top of the rotary burying and returning mechanism (6).

8. The flame straw carbonization rotary burial and field returning integrated machine according to any one of claims 1 to 7, characterized in that: The frame (3) is composed of at least three supporting beams (30) and two side guard plates (31); the front supporting beam (30) and the middle supporting beam (30) are used to arrange the straw carbonization area and the front smoke collection area; the middle supporting beam (30) and the rear supporting beam (30) are used to arrange the rotary tillage returning area; and the rear side of the rear supporting beam (30) is used to arrange the rear smoke collection area; a frame connecting fixing plate (36) is installed on the front supporting beam (30); a suspension bracket (37) is movably installed on the frame connecting fixing plate (36); the frame connecting fixing plate (36) is connected to the lower lifting arm (25) in the power transmission mechanism (2); and the suspension bracket (37) is connected to the lower lifting arm (25) in the power transmission mechanism (2) through a frame pull rod (38). The frame lifting seat (34) on the middle supporting crossbeam (30) is movably connected and the suspension bracket (37) is connected to the upper lifting arm (24) in the power transmission mechanism (2); a reducer support seat (33) is respectively provided on the middle supporting crossbeam (30) and the rear supporting crossbeam (30); and a reducer (23) is installed on the reducer support seat (33); the reducer (23) is connected to the rotary tillage roller (60) to drive the rotary tillage roller (60); and the reducer (23) is connected to the power output shaft (20) in the power transmission mechanism (2) through a universal joint (22) and a transmission shaft (21); and a roller mounting slot (32) for mounting the rotary tillage roller (60) is provided on the side guard plate (31).

9. The flame straw carbonization rotary burial and field returning integrated machine according to any one of claims 1 to 7, characterized in that: The rotary burying and returning to the field mechanism (6) comprises a rotary tillage roller (60) and a rotary tillage cover (63) located on the top of the rotary tillage roller (60), the roller bearing end covers (61) at both ends of the rotary tillage roller (60) are mounted on the roller mounting slots (32) on the side guard plates (31), and a roller limit baffle (62) is arranged below each roller bearing end cover (61); the rotary burying and returning to the field mechanism (6) further comprises a soil covering drag plate (66), a drag plate adjustment rod (65) capable of adjusting the angle of the soil covering drag plate (66) is mounted on a drag plate support seat (64), and the drag plate support seat (64) is mounted on the rear smoke collecting cover plate (57), or the two ends of the soil covering drag plate (66) are respectively hinged to the side guard plates (31), or the upper part of the soil covering drag plate (66) is hinged to the rear edge of the rear smoke collecting cover plate (57).

10. The flame straw carbonization rotary burial and field returning integrated machine according to any one of claims 1 to 7, characterized in that: The integrated machine further comprises a spray smoke elimination mechanism (7) arranged at the rear of the integrated machine, the spray smoke elimination mechanism (7) being capable of further eliminating smoke in the air, lowering the soil temperature after covering with soil, and preventing dust from being raised by the covering drag plate (66); the spray smoke elimination mechanism (7) comprising a water tank (70), a water pump (71), a water pipe (72), a spray rod (73), a fan-shaped atomizing nozzle (74), and a spray support plate (75); the water tank (70) and the water pump (71) being arranged on the power mechanism (1); the spray rod (73) having the fan-shaped atomizing nozzle (74) being mounted on the floating bracket (58) of the smoke filtering mechanism (5) via the spray support plate (75); and the spray rod (73) being connected to the water tank (70) via the water pipe (72) having the water pump (71).

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