A ground surface disinfection device based on heat penetration

Abstract

The utility model belongs to agricultural equipment technical field especially relates to a kind of ground disinfection device based on heat penetration, including the frame of several combustor and the power source being arranged on frame, frame and traction equipment are detachably connected, the combustor is arranged in row interval along operation direction, and the frame below combustor is rotationally equipped with the ring belt for conveying soil;The frame is also equipped with shovel board at one end of its operation advancing direction, and the other end is equipped with moving wheel, the shovel board is obliquely arranged and bottom end is used to cut into ground to shovel soil operation, top end extends to the top band body of the docking ring belt;The input shaft of drive ring belt is connected with the output shaft of power source by chain wheel transmission or belt pulley transmission structure transmission connection.The utility model can move into stable heat treatment environment in the process of equipment movement, the ground soil of target depth is moved to carry out high penetration heating treatment, improves the killing cleaning effect of harmful substance in ground soil.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural equipment technology, and in particular relates to a surface disinfection device based on heat penetration. Background Technology

[0002] High-temperature soil sterilization technology differs from traditional pesticide disinfection methods. It utilizes a high-temperature environment to treat the soil, killing pests, insect eggs, viruses, and other microorganisms, as well as removing residual pesticides and other chemical agents. While there are many existing high-temperature soil sterilization devices, most rely on direct flame heating during operation, making it difficult to achieve ideal results. This is mainly due to the following limitations: 1) The power equipment actively loosens and throws the surface soil, while the high-temperature flame burns the thrown soil at high temperature. This method results in a short heating time for the soil, making it difficult to effectively kill pests and diseases in the soil. 2) When the equipment is moving, the high-temperature flame directly sprays into contact with the surface soil. This method has poor heat penetration because the surface soil protects the deeper soil. This not only makes it difficult to effectively treat pests and diseases deep in the soil, but also hinders the escape of heated pesticide residues to the outside. 3) High-temperature heat sources such as flames are directly exposed to the external environment, and the heat is unstable and not concentrated, which cannot provide a continuous soil heat treatment environment with low heat gradient changes. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a surface disinfection device based on heat penetration. This utility model can move the surface soil at the target depth into a stable heat treatment environment for high-penetration heating treatment during the movement of the equipment, thereby improving the effect of killing and cleaning harmful substances in the surface soil.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A surface disinfection device based on heat penetration includes a frame frame with several burners and a power source mounted on the frame. The frame is detachably connected to a traction device. The burners are arranged in rows at intervals along the working direction, and a ring belt for transporting soil is rotatably mounted on the frame below the burners. The frame is equipped with a shovel plate at one end in its working direction and a moving wheel at the other end. The shovel plate is inclined and its bottom end is used to cut into the ground surface for shoveling operations, while its top end extends to the top of the docking ring belt. The input shaft of the drive belt is connected to the output shaft of the power source via a sprocket drive or belt pulley drive structure.

[0005] Preferably, the ring belt is inclined with its lower point facing the shovel plate, and the top of the ring belt transports the soil from low to high.

[0006] Specifically, the ring belt is an annular mesh belt driven by two tension rollers, with the roller shaft of the tension roller furthest from the shovel plate serving as the input shaft.

[0007] Specifically, the belt includes a belt body and chains arranged on both sides of the belt body. Two drive shafts drive and support the chains through two pre-set sprockets on the shaft body, wherein the drive shaft away from the shovel plate is the input shaft.

[0008] Specifically, the belt body is an annular mesh belt; or the belt body is composed of equally spaced support rods or support plates, and the chain links are integrally provided with ear plates, and the two ends of the support rods or support plates are connected to the corresponding ear plates.

[0009] Preferably, the shovel plate has a trapezoidal structure with a longer bottom side, and the two horizontal ends of the longer side extend to the outside of the frame.

[0010] Preferably, the frame is also provided with a soil-pulling roller at the two inclined sides of the corresponding soil-pulling plate. The soil-pulling roller is vertically arranged and the outer wall of the roller is provided with soil-pulling strips at equal intervals around the circumference. The top of the roller shaft of the soil-pulling roller extends to the top of the frame and is coaxially provided with a driven bevel gear. A transmission shaft is also rotatably mounted on the frame, and a driving bevel gear that meshes with the driven bevel gear is provided at both ends of the transmission shaft; The output shaft of the power source drives the transmission shaft through a sprocket drive, a belt pulley drive structure, or a meshing gear drive structure set on the output shaft and the transmission shaft.

[0011] Preferably, the power source is a reducer, and the input shaft of the reducer is connected to the PTO shaft of the tractor, which is the traction device. The burner is a diesel flame burner, with its nozzle inclined in the same direction as the ring belt, and its oil inlet pipe is equipped with a pump unit and connected to the tractor's fuel tank.

[0012] Preferably, the frame is also equipped with a heat insulation cover to avoid the power source and the shovel blade, and the bottom of the heat insulation cover and both ends along the working direction are open. The top of the heat insulation cover is provided with an air inlet duct at one end facing the direction of operation. A fan is installed in one end of the air inlet duct that connects to the outside, and the other end is bent downwards and points towards the interior space of the heat insulation cover.

[0013] Preferably, a flue is provided above the corresponding burner inside the heat insulation cover, and an exhaust duct is provided at one end of the heat insulation cover facing away from the direction of operation. One end of the exhaust duct connects to several flues, and the other end is inclined towards the ground to form a return air duct. The working process of this utility model is as follows: The tractor is connected to the frame via rigid connecting parts such as the drawbar, and the PTO shaft of the tractor and the input shaft of the reducer are connected via a coupling, thus completing the connection between the frame and the tractor.

[0014] Then the tractor is driven, moving the frame across the field. Simultaneously, the PTO shaft outputs power through the reducer's output shaft, driving the input shaft and transmission shaft of the drive belt to rotate. 1) During the movement of the frame, the longer bottom edge of the shovel cuts into the ground surface (the cutting depth can be adjusted according to requirements, i.e., adjusting the specific position or size of the shovel on the frame). Therefore, the surface soil will continuously move up along the shovel under the action of compression and eventually enter the heat insulation cover and be conveyed by the belt. At the same time, in order to ensure that the shoveled soil can effectively enter the heat insulation cover, the transmission shaft drives the two soil rollers to rotate in opposite directions through the meshing of the driving bevel gear and the driven bevel gear. The soil rollers also use soil strips to apply force to the soil on the shovel to move into the heat insulation cover, preventing the soil on the shovel from falling back to the ground under the action of mechanical vibration.

[0015] 2) As the soil enters the heat insulation cover and falls onto the top belt of the ring belt, the ring belt will transport the soil upward. At the same time, the diesel burner sprays high-temperature flames and contacts the soil during the movement to perform high-temperature sterilization. When the soil moves to the end of the transmission direction of the top belt of the ring belt, the soil automatically falls to the ground, thus completing the soil loosening process in a disguised way.

[0016] During this process, the soil on the ring will be spread out under the action of mechanical vibration, increasing its full contact with the open flame; Furthermore, compared to the existing technology where the burner vertically scorches the ground, the diesel burner in this application features an inclined nozzle and an inclined ring, ensuring that the flame column can essentially contact the soil. This guarantees the contact time and area between the high-temperature outer flame layer and the soil, thereby ensuring that pesticide residues, pathogens, and pests in the soil are thoroughly removed. This facilitates soil traceability and allows for specialized management based on the agronomic characteristics of the planted crops.

[0017] To ensure complete combustion of fuel in the diesel burner, the fan draws outside air into the heat shield through the air intake duct, providing sufficient oxygen for fuel combustion. At the same time, it disturbs the high-temperature airflow inside the heat shield, causing the high-temperature airflow to move along the belt and re-contact the soil for heat conduction.

[0018] Furthermore, the flue gas is finally discharged to the ground through the exhaust duct composed of the flue and the exhaust duct. On the one hand, this prevents the hot gas from being discharged horizontally or upward and causing injury. On the other hand, the high-temperature flue gas comes into contact with the soil falling from the ring and the ground soil for further high-temperature disinfection. At the same time, the airflow can also form an air curtain to control the dust effect during the soil falling process.

[0019] Compared with the prior art, the present invention has the following advantages: 1) This utility model can move the surface soil at the target depth into a high-temperature environment during the movement process, so that the soil can not only fully and evenly contact the open flame, but also the whole process is accompanied by the heat conduction assisted by the high-temperature airflow, which significantly improves the high-temperature treatment effect and efficiency of the soil, while improving energy utilization efficiency. 2) This utility model uses diesel fuel from the tractor, which serves as the traction equipment, as the fuel for the flamethrower. Compared with the existing gas-fired fuel supply method, this simplifies the fuel layout, improves operational safety, and reduces operational difficulty, allowing one person to complete the entire operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the surface disinfection device described in a specific embodiment; Figure 2 for Figure 1 A schematic diagram of the internal structure of the heat shield of the device shown. Figure 3 This is a schematic diagram of the transmission structure of the surface disinfection device described in a specific embodiment; Figure 4 This is a schematic diagram of the air duct structure of the heat insulation cover described in a specific embodiment. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] like Figure 1-4 As shown, a surface disinfection device based on heat penetration includes a frame frame 1 with a moving wheel 13 at one end in the length direction and a shovel 6 at the other end. Traction rods 11 are provided on both sides in the width direction of the frame 1. The traction rods 11 are detachably connected to a tractor and the end of the frame with the shovel 6 is set facing the working direction. Several rows of burners 12 are evenly spaced along the length of the frame 1. The burners 12 are diesel flame burners, and their oil inlet pipes are equipped with pump sets and connected to the tractor's fuel tank. A ring belt for conveying soil is also rotatably mounted on the frame 1 below the burner 12. The ring belt consists of a belt body composed of two ring chains 21 and several support plates 22 arranged at equal intervals between the two ring chains 21. The links of the ring chains 21 are integrally provided with ear plates, and the two ends of the support plates 22 are connected to the corresponding ear plates. The ring belt also includes two drive shafts 23, which drive and support the ring chains 21 respectively through two drive sprockets 25 mounted on the shaft body.

[0023] The ring belt is inclined towards the soil-shoveling plate 6 at its lowest point, and the top belt body transports the soil from low to high. The nozzle of the burner 12 is inclined towards the lowest point of the top belt body of the ring belt. The shovel plate 6 is inclined and its bottom end is used to cut into the ground surface for shoveling. Its top end extends to the top of the connecting ring belt. The shovel plate 6 has a trapezoidal structure and its long side at the bottom extends to the outside of the frame 1. The frame 1 is also rotatably equipped with soil-pulling rollers 5 on both sides of the inclined side corresponding to the shovel plate 6. The soil-pulling rollers 5 are vertically arranged and have soil-pulling strips 51 evenly spaced around the outer wall of the roller. The top of the roller shaft of the soil-pulling roller 5 extends to the top of the frame and is coaxially equipped with a driven bevel gear 52. The top of the frame 1 is also rotatably mounted on the soil scraper 6 above the shovel plate 6, and a reducer 3 is fixedly mounted thereon. The input shaft 31 of the reducer 3 is connected to the PTO shaft of the tractor. The output shaft 32 of the reducer 3 is respectively provided with a drive sprocket 33 and a drive gear 34. The end of the drive shaft 23 away from the soil scraper 6 is exposed to the outside and is provided with a driven sprocket 24. The drive sprocket 33 and the driven sprocket 24, together with the chain 25, form a sprocket drive structure. The shaft of the transmission shaft 4 is provided with a driven gear 41 that meshes with the driving gear 34, and the two ends of the transmission shaft 4 are provided with driving bevel gears 42 that mesh with the driven bevel gears 52. The frame 1 is also provided with a heat insulation cover 7. The bottom of the heat insulation cover 7 and both ends along the working direction are open and avoid the transmission shaft 4 and the reducer 3. The top of the heat insulation cover 7 is provided with an air inlet duct 71 at the end facing the working direction. A fan 74 is provided in one end of the air inlet duct 71 that connects to the outside. The other end is bent downwards and points towards the interior space of the heat insulation cover 7. A flue 73 is also provided above the corresponding burner 12 inside the heat insulation cover 7. An exhaust duct 72 is provided at the end of the heat insulation cover 7 that is not facing the working direction. One end of the exhaust duct 72 connects to several flues 73. The other end is bent towards the ground and forms a return air duct.

[0024] The working process of this utility model is as follows: The tractor is connected to the frame 1 via the drawbar 11, and the tractor's PTO shaft and the input shaft 31 of the reducer 3 are connected via a coupling, thus completing the connection between the frame 1 and the tractor.

[0025] Then, the tractor is driven and the frame 1 is moved in the field. At the same time, the PTO shaft outputs power through the output shaft 32 of the reducer 3. During the rotation of the output shaft 32, the transmission shaft 4 is rotated through the meshing of the drive gear 34 and the driven gear 41. The transmission shaft 4 is driven by the meshing of the drive bevel gear 42 and the driven bevel gear 52, which causes the two soil rollers 5 to rotate in opposite directions. At the same time, the output shaft 32 also realizes the rotation of the transmission shaft 23 through the sprocket transmission structure composed of the drive sprocket 33, the chain 25 and the driven sprocket 24. The transmission shaft 23 drives the ring chain 21 through its own drive sprocket 25, which in turn causes the ring belt to rotate.

[0026] As frame 1 is moved by the tractor: Because the longer bottom edge of the shovel plate 6 cuts into the ground surface (the cutting depth can be adjusted according to needs, i.e., adjusting the specific position or size of the shovel plate on the frame), the surface soil continuously moves upward along the shovel plate 6 under the pushing action of subsequent soil. In order to ensure that the soil scooped up by the shovel plate can effectively enter the heat insulation cover 7, the two soil-pushing rollers 5 rotate in opposite directions, and the soil-pushing strips 52 apply a force to the soil on the shovel plate to move it into the heat insulation cover 7, preventing the soil on the shovel plate 6 from falling back to the ground under the action of mechanical vibration.

[0027] The soil eventually enters the ring belt inside the heat insulation cover 7. The ring belt's support plates 22 form a narrow-gap belt structure that supports and transports the soil from low to high, preventing it from falling during transport. Simultaneously, the burner 12 emits a high-temperature flame that contacts and sterilizes the soil during transport. Furthermore, the soil on the ring belt gradually spreads out under mechanical vibration, exposing any hidden insect eggs or other substances that can directly contact the open flame. Compared to the existing technology where the burner vertically scorches the ground, the burner's nozzle in this application, combined with the inclined ring belt, ensures that the entire flame column can contact the soil, guaranteeing sufficient contact time and area between the high-temperature outer flame layer and the soil. This ensures that pesticide residues, pathogens, and pests are thoroughly removed from the soil. This allows for soil traceability and facilitates subsequent specialized management operations based on the agronomic characteristics of the planted crops.

[0028] When the soil moves to the top of the belt and the end of the transmission direction, the soil automatically falls to the ground, thus completing the soil loosening process in a disguised way.

[0029] To ensure the complete combustion of the fuel injected by the burner 12, the fan 74 discharges outside air into the heat insulation cover 7 through the air inlet duct 71, providing sufficient oxygen for fuel combustion. At the same time, it disturbs the high-temperature airflow inside the heat insulation cover 7, causing the high-temperature airflow to move along the belt and re-contact the soil for secondary heating and conduction.

[0030] Furthermore, the flue gas is finally discharged to the ground through the exhaust duct consisting of flue 73 and exhaust duct 74. On the one hand, this prevents the hot gas from being discharged horizontally or upward and causing injury. On the other hand, the high-temperature flue gas comes into contact with the soil falling from the ring belt and the ground soil for three high-temperature disinfection. At the same time, the airflow can also form an air curtain to control the dust effect during the soil falling process.

Claims

1. A surface disinfection device based on heat penetration, comprising a frame frame with several burners and a power source mounted on the frame, wherein the frame is detachably connected to a traction device, characterized in that, The burners are arranged in rows at intervals along the working direction, and a ring belt for conveying soil is rotatably installed on the frame below the burners; The frame is equipped with a shovel plate at one end in its working direction and a moving wheel at the other end. The shovel plate is inclined and its bottom end is used to cut into the ground surface for shoveling operations, while its top end extends to the top of the docking ring belt. The input shaft of the drive belt is connected to the output shaft of the power source via a sprocket drive or belt pulley drive structure.

2. The surface disinfection device based on heat penetration as described in claim 1, characterized in that, The ring belt is inclined with its lowest point facing the shovel plate, and the top of the ring belt transports the soil from low to high.

3. The surface disinfection device based on heat penetration as described in claim 1, characterized in that, The belt is an annular mesh belt driven by two tensioning rollers, with the roller shaft of the tensioning roller furthest from the shovel plate serving as the input shaft.

4. The surface disinfection device based on heat penetration as described in claim 1, characterized in that, The belt includes a belt body and chains on both sides of the belt body. Two drive shafts drive and support the chains through two pre-set sprockets on the shaft body. The drive shaft away from the shovel plate is the input shaft.

5. The surface disinfection device based on heat penetration as described in claim 4, characterized in that, The belt is a ring-shaped mesh belt; or The belt body is composed of struts or plates arranged at equal intervals, and the chain links are integrally provided with ear plates. The two ends of the struts or plates are connected to the corresponding ear plates.

6. The surface disinfection device based on heat penetration as described in claim 1, characterized in that, The shovel plate has a trapezoidal structure with a longer bottom side, and the horizontal ends of the longer side extend to the outside of the frame.

7. The surface disinfection device based on heat penetration as described in claim 6, characterized in that, On the frame, a soil-pulling roller is rotatably mounted on both sides of the corresponding soil-pulling plate. The soil-pulling roller is vertically mounted and has soil-pulling strips evenly spaced on the outer wall of the roller. The top of the roller shaft of the soil-pulling roller extends to the top of the frame and is coaxially mounted with a driven bevel gear. A transmission shaft is also rotatably mounted on the frame, and a driving bevel gear that meshes with the driven bevel gear is provided at both ends of the transmission shaft; The output shaft of the power source drives the transmission shaft through a sprocket drive, a belt pulley drive structure, or a meshing gear drive structure set on the output shaft and the transmission shaft.

8. The surface disinfection device based on heat penetration as described in claim 1, characterized in that, The power source is a reducer, and the input shaft of the reducer is connected to the PTO shaft of the tractor, which is the traction device. The burner is a diesel flame burner, with its nozzle inclined in the same direction as the ring belt, and its oil inlet pipe is equipped with a pump unit and connected to the tractor's fuel tank.

9. The surface disinfection device based on heat penetration as described in claim 1, characterized in that, The frame is also equipped with a heat shield to protect the power source and the shovel blade. The bottom of the heat shield and both ends along the working direction are open. The top of the heat insulation cover is provided with an air inlet duct at one end facing the direction of operation. A fan is installed in one end of the air inlet duct that connects to the outside, and the other end is bent downwards and points towards the interior space of the heat insulation cover.

10. The surface disinfection device based on heat penetration as described in claim 9, characterized in that, The heat insulation cover also has a flue above the corresponding burner. The heat insulation cover has an exhaust duct at one end facing away from the working direction. One end of the exhaust duct connects to several flues, and the other end is inclined towards the ground to form a return air duct.

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