High-pressure cyclone type large-particle fertilizer deep application device for paddy fields

Abstract

A paddy field high-pressure cyclone type super-large granular fertilizer deep application device belongs to the field of agricultural machinery technology. It includes a frame, a fertilizer box, a fertilizer discharger, a high-pressure airflow device, a cyclone accelerator and a water distributor. The fertilizer box and the high-pressure airflow device are both arranged on the frame. The fertilizer discharger is arranged at the fertilizer outlet of the fertilizer box. The cyclone accelerator is arranged between the fertilizer outlet of the fertilizer discharger and the water distributor. The high-pressure air transmission pipe of the high-pressure airflow device is connected to the air inlet of the cyclone accelerator. The structure of the present invention can realize deep application of fertilizer, improve fertilizer utilization rate, and reduce non-point source pollution and water source pollution caused by fertilizer loss; the super-large granular fertilizer used can increase the duration of fertilizer effect.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a paddy field high-pressure cyclone type super-large particle fertilizer deep application device. Background Art

[0002] Fertilization of paddy rice is used to supplement the insufficient soil nutrients, thereby increasing yield and improving quality. At present, only a small number of areas use machine spreading, and most areas need manual spreading due to the lack of necessary machinery. The workload is large, the working environment is poor, the labor intensity is high, and the fertilizer is unevenly spread. The fertilizer is distributed throughout the field rather than near the root system, which reduces fertilizer utilization and fertilizer loss, causing environmental pollution, and it is difficult to achieve precise operation. In some areas, one-time fertilization is adopted. The nutrients required for the growth period of rice are applied once before land preparation and transplanting or at the same time as rice transplanting. Because it saves labor, time and trouble, it can alleviate the shortage of labor. The fertilization area is expanding year by year, but the disadvantage of this technology is that due to the small fertilizer particles and the short duration of fertilizer effect, it is easy to cause sufficient nutrients in the early stage and insufficient nutrients in the later stage, resulting in a waste of fertilizer nutrients. In summary, the existing fertilization method is not suitable for modern precision agricultural production, lacks necessary mechanical equipment, and has a low level of mechanization. Summary of the invention

[0003] In view of the above-mentioned technical problems, the present invention provides a paddy field high-pressure cyclone type super-large granular fertilizer deep application device, which can improve fertilizer utilization rate and reduce non-point source pollution and water source pollution caused by fertilizer loss; the super-large granular fertilizer used can increase the duration of fertilizer effect.

[0004] The objective of the present invention is achieved through the following technical solutions:

[0005] The invention discloses a paddy field high-pressure cyclone type super-large particle fertilizer deep application device, comprising a frame, a fertilizer box, a fertilizer discharger, a high-pressure airflow device, a cyclone accelerator and a water distributor, wherein the fertilizer box and the high-pressure airflow device are both arranged on the frame, the fertilizer discharger is arranged at the fertilizer outlet of the fertilizer box, the cyclone accelerator is arranged between the fertilizer outlet of the fertilizer discharger and the water distributor, and the high-pressure air transmission pipe of the high-pressure airflow device is connected to the air inlet of the cyclone accelerator.

[0006] Furthermore, the cyclone accelerator includes a fertilizer drop pipe, an outer cylinder, a spiral air inlet I, a spiral air inlet II, an accelerating tube, a grid-type gradually expanding port and a connecting plate. One end of the fertilizer drop pipe is connected to the fertilizer discharger outer shell at the fertilizer discharge port, and the other end extends into the outer cylinder. The spiral air inlet I and the spiral air inlet II are symmetrically arranged on the outer periphery of the fertilizer drop pipe. One end is respectively connected to the high-pressure air supply pipe I and the high-pressure air supply pipe II of the high-pressure air flow device, and the other end is placed in the outer cylinder. The accelerating tube is connected to the bottom of the outer cylinder, and the bottom of the accelerating tube is connected to the grid-type gradually expanding port, which is connected to the water distributor through a connecting plate.

[0007] Furthermore, the lower part of the outer cylinder of the accelerator is an inverted cone structure, and its cone angle β is 45° to 65°.

[0008] Furthermore, the angle α between the two spiral air inlets and the upper end plane of the outer cylinder is 60° to 80°.

[0009] Furthermore, the inner diameter c of the fertilizer drop pipe = the diameter of the fertilizer particles + (4-6 cm).

[0010] Furthermore, the inner diameter of the accelerating tube is the diameter of the fertilizer particles + (2-4 cm).

[0011] Furthermore, the grid-type gradually expanding port is a structure in which a plurality of grid bars are evenly arranged along the circumference of the accelerating tube to form a frustum, and the windward surface ports of the grid bars are inclined to facilitate the outlet of the airflow.

[0012] Furthermore, the fertilizer discharger includes a fertilizer discharge wheel, a fertilizer discharger shell and a fertilizer cleaning wheel. The fertilizer discharge wheel has multiple fertilizer filling holes evenly opened along its outer circumference. The fertilizer discharger shell is connected to the fertilizer outlet of the fertilizer box. The fertilizer discharge wheel is placed in the fertilizer discharger shell at the fertilizer outlet, forming a semi-closed structure with the fertilizer discharger shell. The bottom of the fertilizer discharger shell is connected to a fertilizer guide cover, which is connected to a fertilizer drop pipe of the accelerator through the fertilizer guide cover.

[0013] Furthermore, a fertilizer cleaning wheel is arranged at the bottom of the fertilizer box where the fertilizer discharge wheel is rotated from the fertilizer box into the outer shell side of the fertilizer discharger, and the rotation direction is the same as that of the fertilizer discharge wheel.

[0014] The beneficial effects of the present invention are:

[0015] 1. The structure of the present invention is adopted, and a cyclone accelerator is arranged between the fertilizer discharge port of the fertilizer discharger and the water distributor, and the high-pressure air supply pipe of the high-pressure airflow device is connected to the air inlet of the cyclone accelerator. The fertilizer discharge wheel of the fertilizer discharger and the outer shell of the fertilizer discharger form a semi-enclosed structure, and the upward channel of the high-pressure gas is disconnected to ensure the downward movement of the gas while ensuring smooth fertilizer discharge. The high-pressure gas has a great pushing effect on the fertilizer particles, and the fertilizer particles are accelerated to obtain high speed and shot into the soil to achieve deep application, which can improve the utilization rate of fertilizers and reduce non-point source pollution and water source pollution caused by fertilizer loss; the super-large granular fertilizer used can increase the duration of fertilizer effect.

[0016] 2. The present invention adopts a fertilizer cyclone accelerator to provide high-pressure cyclone acceleration of fertilizer, reduce the friction and collision between the fertilizer and the wall of the acceleration tube 202, and is more conducive to ensuring fertilizer acceleration while reducing fertilizer particle damage. Two spiral air inlets are symmetrically arranged to ensure stable airflow inside the accelerator 2 to ensure smooth fertilizer acceleration.

[0017] 3. The present invention adopts a grid-type gradually expanding structure, so that after the cyclone leaves the accelerating tube, it rotates and diffuses under the action of centrifugal force, and does not blow directly into the soil, which is conducive to the fertilizer entering the soil. The cross section of the gradually expanding grid bar is inclined on the windward side, which is convenient for the airflow to be guided out. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 for Figure 1 Schematic diagram of the structure of the medium cyclone accelerator.

[0020] Figure 3 It is a cross-sectional view of a grid-type gradually expanding mouth.

[0021] In the figure: 1. water distributor 2. cyclone accelerator 201. grid frame type gradually expanding port 202. acceleration tube 203. outer cylinder 204. spiral air inlet I 205. fertilizer drop pipe 206. spiral air inlet II 207. connecting plate 208. grid bar 3. high pressure gas pipeline I 4. high pressure gas pipeline II 5. fertilizer guide cover 6. fertilizer discharger shell 7. fertilizer discharge wheel 8. fertilizer cleaning wheel 9. fertilizer filling hole 10. fertilizer box 11. air compressor 12. air compressor air tank 13. valve 14. gas pipeline 15. horizontal pressure stabilizing gas pipeline 16. rack. DETAILED DESCRIPTION

[0022] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0023] Example: Figure 1 As shown, a paddy field high-pressure cyclone type super-large particle fertilizer deep application device of the present invention comprises a frame 16, a fertilizer box 10, a high-pressure airflow device, a cyclone accelerator 2 and a water distributor 1, wherein the fertilizer box 10 and the high-pressure airflow device are both arranged on the frame 16, a fertilizer discharger is arranged at the fertilizer outlet of the fertilizer box 10, a cyclone accelerator 2 is arranged between the fertilizer outlet of the fertilizer discharger and the water distributor 1, and a high-pressure air transmission pipe of the high-pressure airflow device is connected to the air inlet of the cyclone accelerator 2.

[0024] like Figure 2 As shown, the cyclone accelerator 2 includes a fertilizer drop pipe 205, an outer cylinder 203, a spiral air inlet I204, a spiral air inlet III206, an accelerating tube 202, a grid-type gradually expanding port 201 and a connecting plate 207. One end of the fertilizer drop pipe 205 is connected to the fertilizer discharger housing 6 at the fertilizer discharge port, and the other end extends into the outer cylinder 203. The spiral air inlet I204 and the spiral air inlet II206 are symmetrically arranged on the outer periphery of the fertilizer drop pipe 205, one end of which is respectively connected to the high-pressure air supply pipe I3 ​​and the high-pressure air supply pipe II4 of the high-pressure air flow device, and the other end is placed in the outer cylinder 203. The accelerating tube 202 is connected below the outer cylinder 203, and the bottom of the accelerating tube 202 is connected to the grid-type gradually expanding port 201. The water divider 1 is connected to the lower end of the gradually expanding port 201 through the connecting plate 207. The water divider 1 separates the surface water layer of the paddy field to facilitate the entry of fertilizer into the mud.

[0025] like Figure 3As shown, the lower portion of the outer cylinder 203 of the cyclone accelerator 2 is an inverted cone structure, and its cone angle β is 45° to 65°.

[0026] The angle α between the spiral air inlet I204, the spiral air inlet II206 and the upper plane of the outer cylinder 203 is 60° to 80°. The spiral air inlet can generate a rotating airflow, and a larger angle makes the rotating airflow have a larger downward component velocity.

[0027] The diameter c of the fertilizer drop pipe 205 = the diameter of the fertilizer particles + (4-6 cm).

[0028] The diameter of the accelerating tube 202 is the diameter of the fertilizer particles + (2-4 cm).

[0029] The grid-type gradually expanding opening 201 is a structure in which a plurality of grid bars 208 are evenly arranged along the circumference of the accelerating tube 202 to form a frustum structure. The windward side ports of the grid bars 208 are inclined to facilitate the outlet of airflow.

[0030] 5. Fertilizer guide cover 6. Fertilizer discharger housing 7. Fertilizer discharge wheel 8. Fertilizer cleaning wheel 9. Fertilizer filling hole 10. Fertilizer box

[0031] The fertilizer distributing device comprises a fertilizer distributing wheel 7, a fertilizer distributing device shell 6 and a fertilizer distributing wheel 8. The fertilizer distributing wheel 8 is evenly provided with a plurality of fertilizer filling holes 9 along its outer circumference. The fertilizer distributing device shell 6 is connected to a fertilizer outlet of a fertilizer box 10. The fertilizer distributing wheel 8 is placed in the fertilizer distributing device shell 6 at the fertilizer outlet, and forms a semi-enclosed structure with the fertilizer distributing device shell 6. The bottom of the fertilizer distributing device shell 6 is connected to a fertilizer guide cover 5, and is connected to a fertilizer drop pipe 205 of an accelerator 2 through the fertilizer guide cover 5. A fertilizer cleaning wheel is arranged at the bottom of the fertilizer box where the fertilizer distributing wheel is transferred from the fertilizer box to the side of the fertilizer distributing device shell. The rotation direction is the same as that of the fertilizer distributing wheel, and the excess fertilizer particles at the fertilizer filling hole outlet are cleaned to ensure that the fertilizer particles are discharged in single pieces.

[0032] When the present invention is working, the air compressor generates high-pressure gas, which enters the cyclone accelerator 2 through the valve 13, the air pipe 14, the transverse pressure-stabilizing air pipe 15, the high-pressure air pipe I3 / the high-pressure air pipe II4, the spiral air inlet I204 / the spiral air inlet II206, and the fertilizer particles fall from the fertilizer drop pipe 205 and fall into the acceleration tube 202. The gap between the fertilizer particles and the acceleration tube 202 is small, and the high-pressure gas has a great pushing effect on the fertilizer particles. The fertilizer particles are accelerated to obtain high speed and are shot into the soil to achieve deep application.

[0033] It can be understood that the above specific description of the present invention is only used to illustrate the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those skilled in the art should understand that the present invention can still be modified or replaced by equivalents to achieve the same technical effects; as long as the use requirements are met, they are within the protection scope of the present invention.

Claims

1. A paddy field high-pressure cyclone type super-large particle fertilizer deep application device, characterized in that: It includes a frame, a fertilizer box, a fertilizer dispenser, a high-pressure airflow device, a cyclone accelerator and a water distributor. The fertilizer box and the high-pressure airflow device are both arranged on the frame. The fertilizer dispenser is arranged at the fertilizer outlet of the fertilizer box. The cyclone accelerator is arranged between the fertilizer outlet of the fertilizer dispenser and the water distributor. The high-pressure air supply pipe of the high-pressure airflow device is connected to the air inlet of the cyclone accelerator. The cyclone accelerator comprises a fertilizer drop pipe, an outer cylinder, a spiral air inlet I, a spiral air inlet II, an accelerating tube, a grid-type gradually expanding port and a connecting plate. One end of the fertilizer drop pipe is connected to the outer shell of the fertilizer discharger at the fertilizer discharge port, and the other end extends into the outer cylinder. The spiral air inlet I and the spiral air inlet II are symmetrically arranged on the outer periphery of the fertilizer drop pipe. One end of the spiral air inlet I and the spiral air inlet II are respectively connected to the high-pressure air supply pipe I and the high-pressure air supply pipe II of the high-pressure air flow device, and the other end is placed in the outer cylinder. The accelerating tube is connected to the bottom of the outer cylinder. The bottom of the accelerating tube is connected to the grid-type gradually expanding port, and the grid-type gradually expanding port is connected to the water distributor through the connecting plate; the inner diameter of the accelerating tube is the diameter of the fertilizer particles plus 2 ～ 4cm; the angle α between the spiral air inlet I, the spiral air inlet II and the upper end plane of the outer cylinder is 60°~80°, and the spiral air inlet generates a rotating airflow; the grid frame type gradually expanding port is a plurality of grid bars evenly arranged along the circumference of the accelerating tube to form a frustum structure, and the windward port of the grid bars is inclined to facilitate the airflow to be led out; the fertilizer dispensing device includes a fertilizer dispensing wheel, a fertilizer dispensing device shell and a fertilizer cleaning wheel, the fertilizer dispensing wheel is evenly provided with a plurality of fertilizer filling holes along its outer circumference, the fertilizer dispensing device shell is connected to the fertilizer outlet of the fertilizer box, the fertilizer dispensing wheel is placed in the fertilizer dispensing device shell at the fertilizer outlet, and forms a semi-closed structure with the fertilizer dispensing device shell, the bottom of the fertilizer dispensing device shell is connected to a fertilizer guide cover, and the fertilizer drop pipe of the accelerator is connected through the fertilizer guide cover; a fertilizer cleaning wheel is arranged at the bottom of the fertilizer box where the fertilizer dispensing wheel is transferred from the fertilizer box to the fertilizer dispensing device shell side, and the rotation direction is the same as the rotation direction of the fertilizer dispensing wheel.

2. The paddy field high-pressure cyclone type super-large particle fertilizer deep application device according to claim 1, characterized in that: The lower part of the outer cylinder of the accelerator is an inverted cone structure, and its cone angle β is 45° to 65°.

3. The paddy field high-pressure cyclone type super-large particle fertilizer deep application device according to claim 1 is characterized in that: The inner diameter c of the fertilizer drop pipe is equal to the diameter of the fertilizer particles plus 4 to 6 cm.

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