Solid fertilizer bomb for high-altitude throwing

Abstract

The utility model relates to a fertilizer bomb for high-altitude throwing, which comprises a bomb head and an empennage, the bomb head is made of solid fertilizer, the tail end of the bomb head is connected with a guide empennage through a traction rope, the guide empennage generates upward tension and can enable the bomb head to fall vertically, and the fertilizer bomb is suitable for high-efficiency throwing of fertilizer in complex terrains or large-area mountainous regions. Therefore, the fertilizer can directly enter the soil layer, and the purpose of accurate and effective fertilization is achieved.

Description

Technical fields:

[0001] This utility model relates to the field of agricultural fertilization technology, and in particular to a solid fertilizer projectile for high-altitude delivery. Background technology:

[0002] Traditional fertilization methods mainly rely on ground-based mechanical or manual application, which suffers from low efficiency, high cost, and terrain limitations. With the development of aviation technology, aerial fertilization using aircraft is becoming a trend. However, existing aerial fertilization technologies primarily target liquid and granular solid fertilizers, and these technologies are susceptible to problems such as fertilizer being blocked by plant cover, low utilization rates, easy drift, and environmental pollution. Effective technical means for aerial fertilizer delivery are still lacking. Summary of the Invention:

[0003] The purpose of this invention is to provide a solid fertilizer projectile for high-altitude delivery, aiming to solve the problem that existing granular solid fertilizers are easily blocked by plant branches and leaves during delivery, thus affecting effective fertilization.

[0004] The high-altitude fertilizer delivery projectile of this invention is implemented as follows: it consists of a projectile and tail fins. The projectile is made of solid fertilizer, and the tail end is connected to the tail fins via a traction rope. During delivery, the tail fins generate an upward pulling force, keeping the projectile vertically descending. This allows it to penetrate the soil under its own weight, effectively applying fertilizer and preventing fertilizer loss and environmental pollution during delivery (especially since fertilizer that cannot penetrate the soil is easily lost on rainy days). Attached image description:

[0005] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0006] In the diagram: 1—warhead; 2—tail fin; 3—traction rope; 4—tail; 5—conical section.

[0007] Figure 2 This is a schematic diagram of the high-altitude deployment of this utility model. Detailed implementation method:

[0008] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings:

[0009] like Figure 1 As shown, the present invention provides a fertilizer bomb for high-altitude delivery, which mainly consists of a warhead 1, a tail fin 2, and a traction rope 3 connecting the warhead and the tail fin.

[0010] The warhead 1 is made of solid fertilizer and can decompose or dissolve on its own after being deployed and penetrating the soil, providing the crops with the necessary nutrients. To reduce air resistance and improve descent stability, the front end of the warhead 1 is designed as a conical section 5, which effectively enhances aerodynamic performance during deployment.

[0011] The tail end of the warhead 1 is connected to the tail fin 2 by a high-strength traction rope 3. The length of the traction rope 3 can be adjusted according to actual usage needs. The tail fin 2 is made of lightweight sheet material, which can be made of plastic or thin metal. The tail fin 2 is designed with a forked tail 4, with the tails forming a 30-degree angle. This design can generate upward air resistance during the deployment process, ensuring that the warhead 1 remains vertical, so that the fertilizer can fall into the predetermined area and avoid interference from external factors such as wind.

[0012] I. Composition and Preparation of the Warhead

[0013] 1. Bullet formula

[0014] The warhead is manufactured according to the following weight percentages:

[0015] - Calcium dihydrogen phosphate (Ca(H2PO4)2): 25%

[0016] - Sodium silicate (Na2SiO3·9H2O): 3%

[0017] -Urea (CO(NH2)2): 50%

[0018] - Potassium sulfate (K2SO4): 12%

[0019] - Clay: 10% (for increasing adhesion)

[0020] 2. Warhead Structure

[0021] The warhead consists of two parts:

[0022] - Part 1 (Top): Mix calcium dihydrogen phosphate and sodium silicate in a ratio of 9:1, add an appropriate amount of water (20% of the weight of the mixture), stir well, and make a mixture with good plasticity.

[0023] - Part Two (Later): Mix urea, potassium sulfate and clay in a ratio of 4:1:1, add water (50g of water for every 300g of mixture), and stir well.

[0024] 3. Preparation process

[0025] Includes the following steps:

[0026] a) Mix powdered phosphate fertilizer (calcium dihydrogen phosphate Ca(H2PO4)2, which contains 20% effective P2O5 component), silicon fertilizer (containing 50% effective SiO2 component) and water in a ratio of 9:1:2 to prepare the first part of the mixture;

[0027] b) Place the first part of the mixture at the top of the mold and extrude it by piston to form the top of the projectile;

[0028] c) Mix powdered urea (CO(NH2)2, containing 46% N), potassium fertilizer (potassium sulfate (K2SO4, containing 50% effective K2O component) and clay in a ratio of 4:1:1. Take 300g of the mixture, add 50g of water, and mix to prepare the second part of the mixture.

[0029] d) Fill the mold with the second part of the mixture and the connecting end of the traction rope 3, and use the piston to squeeze the second part of the mixture and the traction rope to combine with the first part of the mixture to form the projectile 1 as a whole;

[0030] e) Remove the entire projectile from the mold and dry it at 60-70°C to obtain a projectile 1 with a traction rope 3;

[0031] f) Connect the other end of the towing rope 3 to the tail fin 2 to make a solid warhead for high-altitude delivery.

[0032] The warhead has a diameter of 5-6 cm, a length of 10-12 cm, a density of 1.4-1.6 g / cm³, and a weight of 400 g. It contains 200 g of urea, 90 g of phosphate fertilizer, 50 g of potassium fertilizer, 10 g of silicon fertilizer, and 50 g of clay. It contains 92 g of N, 18 g of P₂O₅, 25 g of K₂O, and 5 g of SiO₂, with a N:P₂O₅:K₂O:SiO₂ ratio of approximately 18:4:5:1.

[0033] II. Working Principle

[0034] When dropped from high altitude, the solid warhead is launched by an aircraft (such as a drone or airplane). Due to the air resistance of the tail fins 2, an upward pull is generated, which keeps the warhead 1 vertically descending via the traction rope 3, preventing rotation and deviation during the descent. The conical part 5 at the front of the warhead reduces air resistance and enhances the stability of the descent.

[0035] When applied in complex terrain or large areas of forest, the fertilizer pellets of this invention have the ability to efficiently deliver fertilizer, greatly improving agricultural production efficiency while saving fertilizer usage, thus having significant economic benefits and social value.

Claims

1. A solid fertilizer projectile for high-altitude delivery, comprising a warhead and tail fins, characterized in that: The warhead is made of solid fertilizer, and the tail end of the warhead is connected to a tail fin that generates an upward pulling force and allows the warhead to fall vertically via a traction rope.

2. The solid fertilizer projectile for high-altitude delivery according to claim 1, characterized in that: The tail fin is made of sheet material and has intersecting tail sections at its upper end.

3. The solid fertilizer projectile for high-altitude delivery according to claim 2, characterized in that: The angle formed between the forked tails is 20-60°.

4. The solid fertilizer projectile for high-altitude delivery according to claim 1, characterized in that: Its warhead has a tapered tip.

Images