Uniform fertilization equipment for ginger planting

Abstract

The invention discloses uniform fertilization equipment for ginger planting, and relates to the technical field of agricultural fertilization. Lime powder fluidization conveying, huddled powder separation and crushing and powder recycling can be completed, and the device can be used for follow-up uniform spreading of solid fertilizer. The device comprises an adjusting sleeve, a rotational flow blade, a lime powder feeding barrel, an air and material mixing channel, a grinding bin and a recycling and feeding structure, high-speed airflow is generated through an air blower to enable lime powder to form a rotating flow field, non-huddled powder is guided into a feeding pipe through an axial baffle, huddled powder falls into the grinding bin and is smashed through multiple sets of grinding shafts, and the powder is recycled. And under the action of negative pressure, the gas circulates back to the mixing channel, so that complete closed-loop treatment is realized. And the cyclone structure below the circular plate and the adjustable height design ensure that lime powder is uniformly spread. In the fertilization stage, the solid fertilizer is quantitatively thrown through an independent fertilizer control mechanism and a fertilization disc.

Description

Technical Field

[0001] This invention relates to the field of agricultural fertilization technology, specifically to a uniform fertilization device for ginger cultivation. Background Technology

[0002] In current ginger cultivation, farmers typically employ traditional fertilization and lime application methods, including manual application and simple centrifugal fertilizer spreaders. These traditional agricultural power machines have relatively simple structures and can only apply single materials, such as lime or solid fertilizer. Existing technologies are significantly inadequate in handling easily agglomerated lime powder. Agglomerated lime powder leads to uneven distribution in ordinary spreading equipment and cannot be recycled, resulting in resource waste. There is also a lack of effective mechanisms for ensuring uniform fertilizer distribution. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the present invention provides the following technical solution: a uniform fertilization device for ginger cultivation, comprising a circular plate with a mesh installed on its edge, wherein an adjusting sleeve is fixedly installed at the axial position of the circular plate, and a swirl vane is fixedly installed at the bottom of the inner wall of the adjusting sleeve, wherein the adjusting sleeve is slidably sleeved on the bottom end of a feeding pipe (a screw is threaded into the adjusting sleeve, and rotating the screw can fix the adjusting sleeve on the feeding pipe to prevent the adjusting sleeve from sliding on the feeding pipe, and is used to adjust the position of the adjusting sleeve on the feeding pipe, that is, to adjust the distance between the circular plate and the ground), and a fertilization motor is fixed on the outer surface of the feeding pipe. A fertilizer application shaft is fixed on the output shaft and passes through the feeding pipe. The fertilizer application shaft is rotatably mounted at the axis of the swirl blades. A fertilizer application disc is fixed to the end of the fertilizer application shaft away from the fertilizer motor in a way that is easy to disassemble. The fertilizer application disc is located below the circular plate, and multiple levers are provided on the upper surface of the fertilizer application disc. A feeding assembly is provided on the side of the feeding pipe away from the circular plate. The feeding assembly includes a fertilizer inlet and a lime powder inlet pipe. The lime powder inlet pipe is fixed at the end of the feeding pipe away from the circular plate. The fertilizer inlet is fixed between the lime powder inlet pipe and the circular plate, close to the lime powder inlet pipe. The fertilizer inlet is perpendicularly fixed and connected to the circular plate.

[0004] Preferably, the feeding assembly further includes a control chamber fixed to the fertilizer inlet, and a fertilizer funnel is fixed to the control chamber in a way that is easy to disassemble. The fertilizer funnel is used to store fertilizer. A first control dial is rotatably installed inside the control chamber. The first control dial is driven by a fertilizer control motor fixed to the outer shell of the control chamber. The first control dial is used to intermittently actuate the fertilizer in the fertilizer funnel to fall into the feeding pipe.

[0005] Preferably, the feeding assembly further includes a lime powder feeding cylinder that is fixedly and coaxially sleeved on the outside of the lime powder inlet pipe. A gas swirl channel is fixedly installed at the tangential position of the circumferential surface of the lime powder feeding cylinder. The gas swirl channel is connected to the tangential direction of the inner wall of the lime powder feeding cylinder. A crushing chamber is fixedly installed at the bottom of the lime powder feeding cylinder and is connected to the inside of the lime powder feeding cylinder.

[0006] Preferably, multiple crushing shafts are rotatably installed on the horizontal direction of the inner wall of the crushing chamber. Each crushing shaft has convex teeth on its circumferential surface. All the convex teeth on two adjacent crushing shafts are in contact and meshing with each other to crush clumps of lime powder. All the crushing shafts are driven by multiple gears located on the outside of the crushing chamber. A crushing motor is fixedly installed on the crushing chamber. The output shaft of the crushing motor is fixedly engaged with one of the crushing shafts, and all the crushing shafts are rotated through all the gears.

[0007] Preferably, a recovery funnel is fixedly connected to the lower side of the crushing chamber, and a recovery negative pressure pipe is fixedly connected to the bottom of the recovery funnel. One end of the recovery negative pressure pipe is equipped with a one-way gas flow valve, and the other end of the recovery negative pressure pipe is fixedly connected to a recovery feeding pipe.

[0008] Preferably, a gas-material mixing channel is fixedly connected to the gas swirl channel. The side of the gas-material mixing channel is fixedly connected to the end of the recovery feeding pipe away from the recovery negative pressure pipe, and the flow path of the recovery feeding pipe and the gas-material mixing channel are perpendicularly matched. A lime powder feeding port is vertically connected to the middle of the gas-material mixing channel. A lime powder funnel is fixedly connected to the lime powder feeding port. A second control wheel is rotatably installed at the bottom of the inner wall of the lime powder funnel. The second control wheel is driven by a lime powder control motor fixed on the outer wall of the lime powder funnel. The second control wheel is used to intermittently feed the lime powder in the lime powder funnel into the gas-material mixing channel. An eccentric vibrating plate is also fixed to the output shaft of the lime powder control motor in a way that is easy to disassemble. When the eccentric vibrating plate rotates, it drives the lime powder funnel to rotate together, which increases the flowability of the lime powder in the lime powder funnel.

[0009] Preferably, the feeding pipe, lime powder feeding cylinder, crushing bin, and recycling feeding pipe are all fixed on the chassis, and a blower is also fixed on the chassis. The exhaust port of the blower is connected to the end of the gas-material mixing channel away from the gas swirl channel. Four motor wheel sets are set on the chassis, and each motor wheel set can be driven independently.

[0010] Preferably, the lime powder feed pipe has multiple axial channels arranged in a circular array at equal intervals on the circumferential surface inside the lime powder feeding cylinder. Each axial channel has an axial baffle fixed to its side. The axial baffle is not perpendicular to the circumferential surface of the lime powder feed pipe (the perpendicular line to the tangent on the surface of the lime powder feed pipe, i.e., the normal line), but faces the direction of gas rotation inside the lime powder feeding cylinder. A conical baffle is provided between the lime powder feed pipe and the rolling shaft. The conical baffle is suspended and fixed below the lime powder feed pipe by multiple conical baffle hangers.

[0011] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention uses a blower, a gas-material mixing channel, and a gas swirl channel structure to make the lime powder form a high-speed gas-solid two-phase flow before entering the lime powder feeding cylinder, so that it has good fluidization characteristics. At the same time, the axial channel and the axial baffle arranged in the inclined direction in the lime powder feeding cylinder can allow the non-clumped lime powder to directly enter the lime powder feed pipe by airflow, while the clumped lime powder falls into the crushing chamber by the action of centrifugal force, gravity and friction, and is crushed by the crushing shaft. Not only does it avoid clogging, but it also ensures that all the lime powder that actually enters the bottom of the circular plate is in a loose powder state, thereby greatly improving the uniformity of lime application and realizing the stability of soil disinfection operation; (2) The present invention is equipped with a recovery funnel, a recovery negative pressure pipe and a recovery feeding pipe, and uses the Bernoulli effect to form a negative pressure, so that the crushed lime powder returns to the gas-material mixing channel, realizing the closed-loop use process of non-fluidized powder - crushing - recovery - re-entering the material flow. The circulating structure ensures that all lime powder can be effectively utilized in the end, reducing material loss during the operation, reducing user costs, and ensuring that lime powder processing is always in a high-flow state; (3) This invention realizes the application of various solid fertilizers through the fertilizer inlet, control chamber, and first control dial structure. By simply changing the fertilizer plate and lifting the net, the lime powder can be quickly switched to the fertilizer application mode after application, realizing multi-purpose use. The fertilizer control motor can accurately adjust the amount of fertilizer applied, and the fertilizer motor controls the speed of the fertilizer plate and adjusts the width of the application. It reduces the equipment investment of farmers, realizes the continuous operation process of lime disinfection and base fertilizer application, and is conducive to improving the overall efficiency of agricultural operations. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0013] Figure 2 This is a structural diagram of the feeding pipe of the present invention.

[0014] Figure 3 This diagram illustrates the connection between the feed pipe and the gas-material mixing channel of this invention.

[0015] Figure 4 This is a schematic diagram of the internal structure of the recovery funnel of the present invention.

[0016] Figure 5 This is a schematic diagram of the structure of the axial baffle of the present invention.

[0017] In the diagram: 1-Circular plate; 2-Network; 3-Fertilizer applicator; 4-Swirl vane; 5-Adjusting sleeve; 6-Fertilizer applicator shaft; 7-Fertilizer applicator motor; 8-Feeding pipe; 9-Fertilizer inlet; 10-Control chamber; 11-Fertilizer funnel; 12-First control wheel; 13-Fertilizer control motor; 14-Screw; 15-Motor wheel assembly; 16-Chassis; 17-Blower; 18-Lime powder feeding cylinder; 19-Crushing chamber; 20-Lime powder inlet pipe; 21-Gas 21-Starting channel; 22-Crushing motor; 23-Recovery funnel; 24-Recovery negative pressure pipe; 25-Recovery feeding pipe; 26-Air-material mixing channel; 27-Lime powder feeding port; 28-Lime powder funnel; 29-Lime powder control motor; 30-Second control dial; 31-Eccentric vibrating disc; 32-Gear; 33-Crushing shaft; 34-One-way gas flow valve; 35-Conical baffle; 36-Axial channel; 37-Axial baffle; 38-Conical baffle suspension rod. Detailed Implementation

[0018] The following is in conjunction with the appendix Figures 1-5 The technical solution of the present invention will be further illustrated through specific embodiments.

[0019] This invention provides a uniform fertilization device for ginger cultivation, comprising a circular plate 1 with a mesh 2 installed on its edge, wherein an adjusting sleeve 5 is fixedly installed at the axial position of the circular plate 1, and a swirl vane 4 is fixedly installed on the bottom of the inner wall of the adjusting sleeve 5. The adjusting sleeve 5 is slidably fitted onto the bottom end of a feeding pipe 8 (a screw 14 is threaded into the adjusting sleeve 5, and rotating the screw 14 can fix the adjusting sleeve 5 onto the feeding pipe 8 to prevent the adjusting sleeve 5 from sliding on the feeding pipe 8, and is used to adjust the position of the adjusting sleeve 5). The position on the feeding pipe 8 (that is, the distance between the adjusting circular plate 1 and the ground) is to be adjusted. A fertilizer motor 7 is fixed on the outer surface of the feeding pipe 8. A fertilizer rotating shaft 6 is fixed on the output shaft of the fertilizer motor 7. The fertilizer rotating shaft 6 is set through the feeding pipe 8. The fertilizer rotating shaft 6 is rotatably installed at the axis of the swirl blade 4. A fertilizer disc 3 is fixed at the end of the fertilizer rotating shaft 6 away from the fertilizer motor 7 in a way that is easy to disassemble. The fertilizer disc 3 is set below the circular plate 1, and multiple levers are set on the upper surface of the fertilizer disc 3. A feeding assembly is provided on the side of the feeding pipe 8 away from the circular plate 1. The feeding assembly includes a fertilizer inlet 9 and a lime powder inlet pipe 20. The lime powder inlet pipe 20 is fixed at the end of the feeding pipe 8 away from the circular plate 1. The fertilizer inlet 9 is fixed at a position between the lime powder inlet pipe 20 and the circular plate 1, close to the lime powder inlet pipe 20, and the fertilizer inlet 9 is vertically fixed and connected to the circular plate 1. The feeding assembly also includes a control chamber 10 fixed to the fertilizer inlet 9. A fertilizer funnel 11 is fixed to the control chamber 10 in a way that is easy to disassemble. The fertilizer funnel 11 is used to store fertilizer. A first control dial 12 is rotatably installed inside the control chamber 10. The first control dial 12 is driven by a fertilizer control motor 13 fixed to the outer shell of the control chamber 10. The first control dial 12 is used to intermittently actuate the fertilizer in the fertilizer funnel 11 to fall into the feeding pipe 8. The feeding assembly also includes a lime powder feeding cylinder 18, which is fixedly and coaxially sleeved on the outside of the lime powder feed pipe 20. A gas swirl channel 21 is fixedly installed at the tangential position of the circumferential surface of the lime powder feeding cylinder 18, and the gas swirl channel 21 communicates with the tangential direction of the inner wall of the lime powder feeding cylinder 18. A crushing chamber 19 is fixedly installed at the bottom of the lime powder feeding cylinder 18, and the crushing chamber 19 communicates with the inside of the lime powder feeding cylinder 18. Multiple crushing shafts 33 are rotatably installed in the horizontal direction on the inner wall of the crushing chamber 19. Each crushing shaft 33 has convex teeth on its circumferential surface. All the convex teeth on two adjacent crushing shafts 33 are in contact and meshing with each other to crush the clumps of lime powder. All the crushing shafts 33 are driven by multiple gears 32 located on the outside of the crushing chamber 19. A crushing motor 22 is fixedly installed on the crushing chamber 19. The output shaft of the crushing motor 22 is fixedly engaged with one of the crushing shafts 33, and all the crushing shafts 33 are rotated through all the gears 32. The lower side of the crushing chamber 19 is fixedly connected to a recovery funnel 23, the bottom of the recovery funnel 23 is fixedly connected to a recovery negative pressure pipe 24, one end of the recovery negative pressure pipe 24 is equipped with a one-way gas flow valve 34, and the other end of the recovery negative pressure pipe 24 is fixedly connected to a recovery feeding pipe 25.A gas-material mixing channel 26 is fixedly connected to the gas swirl channel 21. The side of the gas-material mixing channel 26 is fixedly connected to the end of the recovery feeding pipe 25 away from the recovery negative pressure pipe 24, and the flow path of the recovery feeding pipe 25 is perpendicular to that of the gas-material mixing channel 26. A lime powder feeding port 27 is vertically connected to the middle of the gas-material mixing channel 26. A lime powder funnel 28 is fixedly connected to the lime powder feeding port 27. A second control wheel 30 is rotatably installed at the bottom of the inner wall of the lime powder funnel 28. The second control wheel 30 is driven by a lime powder control motor 29 fixed on the outer wall of the lime powder funnel 28. The second control wheel 30 is used to intermittently feed the lime powder in the lime powder funnel 28 into the gas-material mixing channel 26. An eccentric vibrating plate 31 is also fixed to the output shaft of the lime powder control motor 29 in a way that is easy to disassemble. When the eccentric vibrating plate 31 rotates, it drives the lime powder funnel 28 to rotate together, which increases the flowability of the lime powder in the lime powder funnel 28. The feeding pipe 8, lime powder feeding cylinder 18, crushing bin 19, and recycling feeding pipe 25 are all fixed on the chassis 16. A blower 17 is also fixed on the chassis 16. The exhaust port of the blower 17 is connected to the end of the gas-material mixing channel 26 away from the gas swirl channel 21. Four motor wheel sets 15 are set on the chassis 16, and each motor wheel set 15 can be driven independently.

[0020] The lime powder feed pipe 20 has multiple axial channels 36 arranged in a circular array at equal intervals on the circumferential surface inside the lime powder feeding cylinder 18. Each axial channel 36 has an axial baffle 37 fixed on its side. The axial baffle 37 is not perpendicular to the circumferential surface of the lime powder feed pipe 20 (the perpendicular line to the tangent on the surface of the lime powder feed pipe 20, i.e., the normal line), but faces the direction of gas rotation inside the lime powder feeding cylinder 18. A conical baffle 35 is provided between the lime powder feed pipe 20 and the rolling shaft 33. The conical baffle 35 is suspended and fixed below the lime powder feed pipe 20 by multiple conical baffle hangers 38.

[0021] Before land preparation, 50 kg of lime per acre is needed for soil disinfection. Users can pour lime powder into the lime powder funnel 28, then start the lime powder control motor 29. The lime powder control motor 29 drives the second control dial 30 to rotate. At this time, the lime powder in the lime powder funnel 28 will intermittently (microscopically, the rotation speed of the lime powder control motor 29 can control the amount of lime powder entering the gas-material mixing channel 26 per unit time) is poured into the gas-material mixing channel 26. Previously, blower 17 needed to be started. Blower 17 blew air into the gas-material mixing channel 26, creating a high-speed airflow inside the channel. This airflow carried the lime powder along with the mixture, and then it entered the lime powder feeding cylinder 18 through the gas swirl channel 21. The lime powder rotated on the inner wall of the feeding cylinder 18. During this rotation, the normally non-clumped lime powder, being lighter, moved with the airflow. Furthermore, due to the obstruction of the axial baffle 37, this lime powder was the first to enter through the axial channel 36. In the lime powder feed pipe 20, some clumps of lime powder may enter the pipe under the obstruction of the axial baffle 37. However, due to their large weight, they cannot follow the airflow and will fall onto the conical baffle 35 under the action of gravity. Since the upper surface of the conical baffle 35 is conical, they will slide down into the crushing chamber 19. At the same time, the lime powder will enter the lime powder feeding cylinder 18 through the gas swirl channel 21. If there are clumps, due to their large mass, they will move along the lime powder feeder under the action of centrifugal force. The inner wall of cylinder 18 rotates, and the speed gradually decreases due to the friction between the inner wall of the lime powder feeding cylinder 18 and the lime powder is finally dropped into the crushing chamber 19 under the combined force of gravity. During this process, if the clumps of lime powder are broken into powder by impact, they will also enter the lime powder feed pipe 20 with the airflow. Specifically, since the end of the lime powder feed pipe 20 facing the conical baffle 35 is open, air will also enter the lime powder feed pipe 20 through this point. The flow of this airflow will carry the lime powder at a low speed into the lime powder feed pipe 20. The clumps of lime powder fall onto the crushing shaft 33. By starting the crushing motor 22, all the crushing shafts 33 rotate, crushing the lime powder. The crushed lime powder falls into the recycling funnel 23. Due to the connection between the gas-material mixing channel 26 and the recycling feed pipe 25, and the recycling feed pipe 25 being perpendicular to the gas-material mixing channel 26, the airflow inside the gas-material mixing channel 26 is in a low-pressure state due to the Bernoulli effect. Therefore, the external air enters the recycling negative pressure pipe 24 through the one-way gas flow valve 34, thereby carrying the lime powder that has fallen into the recycling funnel 23 into the recycling feed pipe 25, and then re-enters the gas-material mixing channel 26 through the recycling feed pipe 25, thus realizing the recycling of the clumps of lime powder.Finally, the lime powder enters the feeding pipe 8 through the lime powder inlet pipe 20, and then enters the regulating sleeve 5. After the lime powder is applied, the fertilizer tray 3 needs to be removed. The lime powder moving with the airflow will rotate under the action of the swirl blades 4, causing the lime powder to spread under the circular plate 1, thus evenly spreading the lime powder on the soil surface. In conjunction with the rotation of the four motor wheel sets 15 (the rotation speed of one motor wheel set 15 is greater than that of the other motor wheel set 15 to achieve turning, and all motor wheel sets 15 travel at the same speed, i.e., in a straight line), the circular plate 1 is driven to move on the soil surface.

[0022] After applying lime powder, the soil is tilled and left to stand for one to two weeks before applying two to three tons of high-quality, well-rotted farmyard manure, fifty kilograms of calcium magnesium phosphate fertilizer, and fifty kilograms of potassium sulfate-based compound fertilizer (N:P2O5:K2O=16:16:16) as base fertilizer. For plots deficient in zinc and boron, apply one to two kilograms of zinc sulfate and one kilogram of borax per acre. Place the fertilizers into fertilizer funnel 11, then start the fertilizer control motor 13 and blower 17. Blower 17 normally provides airflow into the feeding pipe 8 (no more lime powder is added to the lime powder funnel 28). The start of fertilizer control motor 13 will rotate the first control wheel 12, which will feed the fertilizer from fertilizer funnel 11 into the feeding pipe 8. This fertilizer, driven by the airflow, is then fed below the circular plate 1. During fertilization, the netting 2 needs to be lifted to the upper surface of the circular plate 1, as there is no more lime powder and no need for covering. Simultaneously, the fertilizer tray 3 is installed at the bottom of the fertilizer rotating shaft 6. The fertilizer is ultimately fed into the upper surface of the fertilizer tray 3 through the feeding pipe 8. At the same time, the fertilizer motor 7 is started, driving the fertilizer tray 3 to rotate via the fertilizer rotating shaft 6. The rotating fertilizer tray 3 spreads the fertilizer horizontally onto the ground, thus achieving large-area fertilization. The density of fertilizer application is controlled by the rotation speed of the fertilizer control motor 13. Because the fertilizer control motor 13 controls the rotation speed of the first control wheel 12, the faster the first control wheel 12 rotates, the more fertilizer enters the feeding pipe 8. Similarly, the faster the fertilizer motor 7 rotates, the faster the fertilizer tray 3 rotates. The faster the fertilizer tray 3 rotates, the greater the centrifugal force experienced by the rotating fertilizer. Therefore, the rotation speed of the fertilizer motor 7 controls the distance the fertilizer is spread, which is the width of a single fertilization pass.

Claims

1. A uniform fertilization device for ginger cultivation, characterized in that: The circular plate (1) with a mesh (2) installed on its edge is included. An adjusting sleeve (5) is fixedly installed at the axial position of the circular plate (1). A swirl vane (4) is fixedly installed at the bottom of the inner wall of the adjusting sleeve (5). The adjusting sleeve (5) is slidably sleeved on the bottom end of the feeding pipe (8). A fertilizer motor (7) is fixed on the outer surface of the feeding pipe (8). A fertilizer rotating shaft (6) is fixed on the output shaft of the fertilizer motor (7). The fertilizer rotating shaft (6) passes through the feeding pipe (8). The fertilizer rotating shaft (6) is rotatably installed at the axial position of the swirl vane (4). A fertilizer disc (3) is fixed at the end of the fertilizer rotating shaft (6) away from the fertilizer motor (7) in a way that is easy to disassemble. The fertilizer disc (3) is located below the circular plate (1). Multiple levers are provided on the upper surface of the fertilizer disc (3). A feeding assembly is provided on the side of the feeding pipe (8) away from the circular plate (1). The feeding assembly includes a fertilizer inlet (9) and a lime powder feed pipe (20). The lime powder feed pipe (20) is fixed at the end of the feeding pipe (8) away from the circular plate (1). The fertilizer inlet (9) is fixed at the position between the lime powder feed pipe (20) and the circular plate (1) close to the lime powder feed pipe (20). The fertilizer inlet (9) and the circular plate (1) are vertically fixed and connected.

2. The uniform fertilization device for ginger cultivation according to claim 1, characterized in that: The feeding assembly also includes a control chamber (10) fixed to the fertilizer inlet (9). A fertilizer funnel (11) is fixed to the control chamber (10) in a way that is easy to disassemble. The fertilizer funnel (11) is used to store fertilizer. A first control wheel (12) is rotatably installed inside the control chamber (10). The first control wheel (12) is driven by a fertilizer control motor (13) fixed to the outer shell of the control chamber (10). The first control wheel (12) is used to intermittently actuate the fertilizer in the fertilizer funnel (11) to fall into the feeding pipe (8).

3. The uniform fertilization device for ginger cultivation according to claim 2, characterized in that: The feeding assembly also includes a lime powder feeding cylinder (18) that is fixedly and coaxially sleeved on the outside of the lime powder feed pipe (20). A gas swirl channel (21) is fixedly installed at the tangential position of the circumferential surface of the lime powder feeding cylinder (18). The gas swirl channel (21) is connected to the tangential direction of the inner wall of the lime powder feeding cylinder (18). A crushing chamber (19) is fixedly installed at the bottom of the lime powder feeding cylinder (18). The crushing chamber (19) is connected to the inside of the lime powder feeding cylinder (18).

4. The uniform fertilization device for ginger cultivation according to claim 3, characterized in that: Multiple grinding shafts (33) are rotatably installed on the horizontal direction of the inner wall of the grinding chamber (19). Each grinding shaft (33) has convex teeth on its circumferential surface. All the convex teeth on two adjacent grinding shafts (33) are in contact and meshing with each other to crush the clumps of lime powder. All the grinding shafts (33) are driven by multiple gears (32) set on the outside of the grinding chamber (19). A grinding motor (22) is fixedly installed on the grinding chamber (19). The output shaft of the grinding motor (22) is fixedly matched with one of the grinding shafts (33), and all the grinding shafts (33) are rotated by all the gears (32).

5. The uniform fertilization device for ginger cultivation according to claim 4, characterized in that: The crushing chamber (19) is fixedly connected to the bottom of the recovery funnel (23), the bottom of the recovery funnel (23) is fixedly connected to the recovery negative pressure pipe (24), one end of the recovery negative pressure pipe (24) is equipped with a one-way gas flow valve (34), and the other end of the recovery negative pressure pipe (24) is fixedly connected to the recovery feeding pipe (25).

6. The uniform fertilization device for ginger cultivation according to claim 5, characterized in that: A gas mixing channel (26) is fixedly connected to the gas swirl channel (21). The side of the gas mixing channel (26) is fixedly connected to the end of the recovery feeding pipe (25) away from the recovery negative pressure pipe (24), and the flow path of the recovery feeding pipe (25) and the gas mixing channel (26) are perpendicularly matched. A lime powder feeding port (27) is vertically connected to the middle of the gas mixing channel (26). A lime powder funnel (28) is fixedly connected to the lime powder feeding port (27). A second control dial (30) is rotatably set at the bottom of the inner wall of the lime powder funnel (28). The second control dial (30) is driven by a lime powder control motor (29) fixed on the outer wall of the lime powder funnel (28). The second control dial (30) is used to intermittently feed the lime powder in the lime powder funnel (28) into the gas mixing channel (26). An eccentric vibrating plate (31) is also fixed on the output shaft of the lime powder control motor (29) in a way that is easy to disassemble.

7. The uniform fertilization device for ginger cultivation according to claim 6, characterized in that: The feeding pipe (8), lime powder feeding cylinder (18), crushing bin (19), and recycling feeding pipe (25) are all fixed on the chassis (16). A blower (17) is also fixed on the chassis (16). The exhaust port of the blower (17) is connected to the end of the gas-material mixing channel (26) away from the gas swirl channel (21). Four motor wheel sets (15) are set on the chassis (16), and each motor wheel set (15) can be driven independently.

8. The uniform fertilization device for ginger cultivation according to claim 3, characterized in that: The lime powder feed pipe (20) is located on the inner circumferential surface of the lime powder feeding cylinder (18) and has multiple axial channels (36) arranged in a circular array at equal intervals. Each axial channel (36) has an axial baffle (37) fixed on its side. A conical baffle (35) is provided between the lime powder feed pipe (20) and the rolling shaft (33). The conical baffle (35) is suspended and fixed below the lime powder feed pipe (20) by multiple conical baffle hangers (38).

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