A methane abatement device for rice fields

Abstract

The utility model discloses a kind of methane emission reduction devices for rice field, it is related to rice methane emission management technical field, including installation shell and support frame, the side of installation shell is equipped with tank, the inside of installation shell is equipped with stirring mechanism, stirring mechanism includes rotating component and adjusting component, wherein rotating component includes the first bevel gear of being installed in installation shell inner wall, the top end side of first bevel gear is engaged with the second bevel gear, the middle part of second bevel gear is fixedly connected with connecting rod;In the utility model, the sustained stirring action that is generated by the forward and reverse rotation of stirring component after starting can prevent oxidant from precipitating and caking in water, can break the stratification and zoning phenomenon of material in container, realize from the edge of container center to all-around mixing, from upper layer to bottom layer, Ensure that all oxidants and water can be fully contacted, improve mixing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of rice methane emission management technology, specifically a methane emission reduction device for paddy fields. Background Technology

[0002] Oxidants have unique advantages and potential in the field of methane emission management. Oxidants can react with methane to convert it into relatively harmless substances such as carbon dioxide and water, thereby directly reducing methane emissions. In paddy field environments, the rational use of oxidants can effectively inhibit the activity of methanogenic bacteria, change the redox state of the soil, and reduce the rate of methane production.

[0003] In existing technologies, mixing methods mainly rely on simple stirring or natural diffusion. These methods have low mixing efficiency and make it difficult to achieve a thorough and uniform mixture of oxidant and water. Moreover, problems such as oxidant precipitation and clumping are prone to occur during the mixing process, further affecting the mixing effect and the utilization efficiency of the oxidant. In rice paddy methane emission reduction devices, if the oxidant and water are not mixed uniformly, methane in some areas may not be fully oxidized, thereby reducing the emission reduction effect. In view of the above, this application is hereby submitted. Utility Model Content

[0004] The purpose of this invention is to provide a methane emission reduction device for paddy fields to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides a methane emission reduction device for paddy fields, including an outer casing and a support frame. A tank is installed on one side of the outer casing, and a stirring mechanism is installed inside the outer casing. The stirring mechanism includes a rotating component and an adjusting component. The rotating component includes a first bevel gear installed on the inner wall of the outer casing. A second bevel gear is meshed with one side of the top of the first bevel gear. A connecting rod is fixedly connected to the middle of the second bevel gear. A fixing plate is fixedly connected to the bottom end of the connecting rod. Multiple internal stirring blades are fixedly connected to the bottom end of the fixing plate. A third bevel gear is meshed with one side of the bottom end of the first bevel gear. A sleeve is fixedly connected to the bottom end of the third bevel gear. The sleeve is fixedly connected to an external stirring frame, and the connecting rod is sleeved on the inner wall of the sleeve.

[0006] Furthermore, the adjustment assembly includes a first motor mounted on the inner wall of the mounting housing. The output end of the first motor is connected to a first spur gear. A second spur gear is meshed with one side of the outer wall of the first spur gear. Two telescopic rods are fixedly connected to one side of the outer wall of the second spur gear. A third spur gear is fixedly connected to the second spur gear via the two telescopic rods. An incomplete gear is fixedly connected to the side of the third spur gear away from the telescopic rods. A fourth spur gear is meshed with one side of the third spur gear. A sleeve rod is rotatably connected to the middle of the side of the third spur gear away from the incomplete gear. A sliding bracket is slidably connected to the outer wall of the sleeve rod. A threaded rod is threadedly connected to the inner wall of the sleeve rod. A second motor is connected to the end of the threaded rod away from the third spur gear.

[0007] Furthermore, a delivery pipe is connected to the bottom of the tank, and a water pump is installed on the side of the delivery pipe closest to the tank.

[0008] Furthermore, the mixing assembly is connected to the support frame via a delivery pipe. Multiple nozzles are installed at the top of the support frame. The top center of the tank is rotatably connected to the sleeve. The internal mixing blades and the external mixing frame are both made of corrosion-resistant materials.

[0009] Furthermore, the first bevel gear is fixedly connected to the middle of one side of the fourth spur gear via a rotating rod, and the rotating assembly and the adjusting assembly are connected via the rotating rod.

[0010] Furthermore, the outer wall of the first motor is fixedly connected to the inner wall of the mounting housing, and the outer wall of the second motor is fixedly connected to the inner wall of the mounting housing.

[0011] Furthermore, a rotating rod is installed on the middle of one side of the first bevel gear, and the first bevel gear is rotatably connected to the inner wall of the mounting housing through the rotating rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are: The continuous stirring action generated by the forward and reverse rotation of the stirring component after it is started can prevent the oxidant from settling and clumping in the water. It can also break up the stratification and partitioning of materials in the container, and achieve all-round mixing from the center to the edge of the container and from the top to the bottom. This ensures that all oxidant and water can come into full contact, thus improving mixing efficiency.

[0013] Alternating forward and reverse rotation applies forces in different directions to the oxidant and water, generating a shearing effect that refines the oxidant particles, breaks down agglomerates, and allows for uniform dispersion in water, increasing the contact area with water and improving solubility and dispersion uniformity.

[0014] The complex flow field generated by the internal and external rotation allows the material to circulate continuously within the container, bringing material from the edges and corners into the mixing center area, thereby eliminating mixing dead zones and ensuring the uniformity of the mixing effect throughout the container. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a methane emission reduction device for use in rice paddies. Figure 2 This is a schematic diagram of the stirring mechanism in a methane emission reduction device used in paddy fields; Figure 3 This is a schematic diagram of the internal structure of the stirring mechanism in a methane emission reduction device used in rice paddies. Figure 4 This is a schematic diagram showing the disassembled rotating component in a methane emission reduction device used in rice paddies. Figure 5 This is a schematic diagram of the regulating component in a methane emission reduction device used in rice paddies; Figure 6 This is a schematic diagram showing the disassembled regulating component in a methane emission reduction device used in rice paddies.

[0016] In the diagram: 1. Housing; 2. Support frame; 3. Tank; 4. First bevel gear; 5. Second bevel gear; 6. Connecting rod; 7. Fixing plate; 8. Internal stirring blade; 9. Third bevel gear; 10. External stirring frame; 11. First motor; 12. First spur gear; 13. Second spur gear; 14. Telescopic rod; 15. Third spur gear; 16. Incomplete gear; 17. Fourth spur gear; 18. Sleeve rod; 19. Sliding bracket; 20. Threaded rod; 21. Second motor; 22. Delivery pipe; 23. Water pump; 24. Nozzle. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-6This utility model provides a technical solution: a methane emission reduction device for paddy fields, including a mounting shell 1 and a support frame 2. A tank 3 is installed on one side of the mounting shell 1. A stirring mechanism is installed inside the mounting shell 1. The stirring mechanism includes a rotating component and an adjusting component. The rotating component includes a first bevel gear 4 installed on the inner wall of the mounting shell 1. A second bevel gear 5 is meshed with one side of the top of the first bevel gear 4. When the first bevel gear 4 rotates, the second bevel gear 5 receives the power transmitted by the first bevel gear 4 and rotates synchronously. A connecting rod 6 is fixedly connected to the middle of the second bevel gear 5. A fixing plate 7 is fixedly connected to the bottom end of the connecting rod 6. The connecting rod 6 rotates around its own axis as the second bevel gear 5 rotates, synchronously driving the fixing plate 7 to rotate. Multiple internal stirring blades 8 are fixedly connected to the bottom end of the fixing plate 7. The internal stirring blades 8 rotate with the rotation of the fixed plate 7, directly contacting the material inside the tank 3. The rotational motion stirs the material, ensuring thorough mixing and improving its uniformity. The multiple internal stirring blades 8 increase the stirring area, enabling more effective stirring and improving stirring efficiency and quality. A third bevel gear 9 is meshed with one side of the bottom end of the first bevel gear 4. The third bevel gear 9 rotates synchronously with the rotation of the first bevel gear 4. A sleeve is fixedly connected to the bottom end of the third bevel gear 9, and the sleeve is fixedly connected to the external stirring frame 10. When the third bevel gear 9 rotates, the sleeve rotates synchronously with the rotation of the third bevel gear 9, synchronously driving the external stirring frame 10 to rotate. The connecting rod 6 is sleeved on the inner wall of the sleeve, and the sleeve allows the connecting rod 6 to rotate freely within it, realizing independent operation of internal and external stirring.

[0019] See Figure 5 , Figure 6The adjustment assembly includes a first motor 11 mounted on the inner wall of the mounting housing 1. The output end of the first motor 11 is connected to a first spur gear 12. A second spur gear 13 is meshed with one side of the outer wall of the first spur gear 12. After the first motor 11 starts, its output end rotates, driving the first spur gear 12 to rotate. Because the second spur gear 13 meshes with the first spur gear 12, it receives the power transmitted by the first spur gear 12 and rotates. Two telescopic rods 14 are fixedly connected to one side of the outer wall of the second spur gear 13. The telescopic rods 14 rotate in a circular motion with the rotation of the second spur gear 13, ensuring the operational stability between the components. A third spur gear 15 is fixedly connected to the second spur gear 13 through the two telescopic rods 14. An incomplete gear 16 is fixedly connected to the side of the third spur gear 15 away from the telescopic rods 14. A fourth spur gear 17 is meshed with one side of the spur gear 15. The rotation of the fourth spur gear 17 is controlled by the separate meshing of the third spur gear 15 and the incomplete gear 16. When the fourth spur gear 17 meshes with the third spur gear 15, it rotates continuously. When it meshes with the incomplete gear 16, it rotates intermittently. A sleeve rod 18 is rotatably connected to the middle of the side of the third spur gear 15 away from the incomplete gear 16. A sliding bracket 19 is slidably connected to the outer wall of the sleeve rod 18. A threaded rod 20 is threadedly connected to the inner wall of the sleeve rod 18. A second motor 21 is connected to the end of the threaded rod 20 away from the third spur gear 15. When the second motor 21 is started, it drives the threaded rod 20 to rotate, and at the same time pushes the sleeve rod 18 to move linearly along the inner wall of the sliding bracket 19, thereby driving the third spur gear 15 and the incomplete gear 16 to mesh with the fourth spur gear 17 respectively.

[0020] See Figure 2 The bottom of the tank body 3 is connected to a conveying pipe 22. A water pump 23 is installed on the side of the conveying pipe 22 near the tank body 3. The conveying pipe 22 itself is fixed, and the material inside flows in a directional manner along the cavity of the conveying pipe 22 under the action of the water pump 23.

[0021] See Figure 1 The mixing component is connected to the support frame 2 via the conveying pipe 22. Multiple nozzles 24 are installed at the top of the support frame 2. The nozzles 24 spray the mixed material onto the surface of the paddy field, thereby changing the microenvironment of the paddy field soil and reducing the generation and emission of methane.

[0022] Working principle: The first bevel gear 4 rotates, which drives the meshing second bevel gear 5 and third bevel gear 9 to rotate. The second bevel gear 5 drives the fixed plate 7 and the internal stirring blade 8 to rotate and stir the material in the tank 3 through the connecting rod 6. The third bevel gear 9 drives the external stirring frame 10 to rotate through the sleeve, and the connecting rod 6 can rotate freely in the sleeve, so that the internal and external stirring can operate independently. The first motor 11 drives the first spur gear 12 to rotate, causing the meshing second spur gear 13 to rotate, which in turn drives the telescopic rod 14, the third spur gear 15, and the incomplete gear 16 to perform circular motion. The rotation mode is controlled by the meshing of the third spur gear 15 and the incomplete gear 16 with the fourth spur gear 17. The second motor 21 drives the threaded rod 20 to rotate, pushing the sleeve rod 18 to move linearly along the sliding bracket 19, thereby controlling the meshing mode of the third spur gear 15 and the incomplete gear 16 with the fourth spur gear 17. Under the action of the water pump 23, the conveying pipe 22 at the bottom of the tank 3 causes the internal material to flow in a directional manner. The material is connected to the support frame 2 through the conveying pipe 22. The nozzle 24 at the top of the support frame 2 sprays the mixed material onto the surface of the paddy field, changing the soil microenvironment and reducing methane production and emissions.

[0023] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Furthermore, since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0024] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A methane emission reduction device for paddy fields, comprising an installation housing (1) and a support frame (2), characterized in that: A tank (3) is installed on one side of the mounting shell (1). A stirring mechanism is installed inside the mounting shell (1). The stirring mechanism includes a rotating component and an adjusting component. The rotating component includes a first bevel gear (4) installed on the inner wall of the mounting shell (1). A second bevel gear (5) is meshed on one side of the top of the first bevel gear (4). A connecting rod (6) is fixedly connected to the middle of the second bevel gear (5). A fixing plate (7) is fixedly connected to the bottom of the connecting rod (6). A plurality of internal stirring blades (8) are fixedly connected to the bottom of the fixing plate (7). A third bevel gear (9) is meshed on one side of the bottom of the first bevel gear (4). A sleeve is fixedly connected to the bottom of the third bevel gear (9). The sleeve is fixedly connected to the external stirring frame (10). The connecting rod (6) is sleeved on the inner wall of the sleeve. The adjustment assembly includes a first motor (11) mounted on the inner wall of the mounting housing (1). The output end of the first motor (11) is connected to a first spur gear (12). A second spur gear (13) is meshed with one side of the outer wall of the first spur gear (12). Two telescopic rods (14) are fixedly connected to one side of the outer wall of the second spur gear (13). A third spur gear (15) is fixedly connected to the second spur gear (13) through the two telescopic rods (14). The third spur gear (15) is located away from the outer wall of the mounting housing (1). An incomplete gear (16) is fixedly connected to one side of the telescopic rod (14). A fourth spur gear (17) is meshed with one side of the third spur gear (15). A sleeve rod (18) is rotatably connected to the middle of the side of the third spur gear (15) away from the incomplete gear (16). A sliding bracket (19) is slidably connected to the outer wall of the sleeve rod (18). A threaded rod (20) is threadedly connected to the inner wall of the sleeve rod (18). A second motor (21) is connected to the end of the threaded rod (20) away from the third spur gear (15). The bottom end of the tank (3) is connected to a conveying pipe (22), and a water pump (23) is installed on the side of the conveying pipe (22) near the tank (3).

2. The methane emission reduction device for paddy fields as described in claim 1, characterized in that: The stirring assembly is connected to the support frame (2) via a delivery pipe (22), and the top of the support frame (2) is equipped with multiple nozzles (24).

3. The methane emission reduction device for paddy fields as described in claim 2, characterized in that: The top center of the tank (3) is rotatably connected to the sleeve, and the materials of the internal stirring blade (8) and the external stirring frame (10) are both corrosion-resistant materials.

4. A methane emission reduction device for paddy fields as described in claim 3, characterized in that: A rotating rod is installed on the middle of one side of the first bevel gear (4), and the first bevel gear (4) is rotatably connected to the inner wall of the mounting housing (1) through the rotating rod.

5. A methane emission reduction device for paddy fields as described in claim 4, characterized in that: The first bevel gear (4) is fixedly connected to the middle of one side of the fourth spur gear (17) via a rotating rod, and the rotating component and the adjusting component are connected via the rotating rod.

6. A methane emission reduction device for paddy fields as described in claim 5, characterized in that: The outer wall of the first motor (11) is fixedly connected to the inner wall of the mounting housing (1), and the outer wall of the second motor (21) is fixedly connected to the inner wall of the mounting housing (1).

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