A high-quality pelleting process for agricultural seeds

Abstract

The present invention discloses a high-quality pelleting process for agricultural seeds. The pelleting process includes: adding seeds into a rotating rotary kettle, spraying water into the rotary kettle and adding pelleting powder to form a coating layer on the surface of the seeds; during the pelleting process, when multi-seed adhesion occurs to the pelleted seeds in the rotary kettle, adding glass balls into the rotary kettle to mix the glass balls with the pelleted seeds so that the glass balls participate in the pelleting operation until the size of the pelleted seeds reaches the preset requirement. The high-quality pelleting process for agricultural seeds of the present invention can effectively ensure the pelleting effect and quality. Especially for irregular seeds with complex shapes, by adding glass balls, the multi-seed adhesion phenomenon can be effectively prevented, so that the pelleted seeds are standard spheres, improving the sowing property of the seeds and facilitating the subsequent sowing operation of the pelleted seeds.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural seed pelleting treatment, and particularly to a high-quality pelleting process for agricultural seeds. Background Art

[0002] Pelleting technology is a seed treatment technology that mechanically coats pesticides, fungicides, fertilizers, plant growth regulators, and other auxiliary materials on the surface of seeds to form large particles with uniform size and smooth appearance. This process not only improves the seed morphology and volume but also promotes subsequent seed germination and plant growth and enhances the resistance to adverse environmental conditions such as drought and diseases. The pelleted seeds can slowly release water and nutrients, enabling the seedlings to better survive and develop under drought conditions. At the same time, by adjusting the proportion of formula components, such as increasing the water retention agent or adhesive, the ability of the seeds to resist physical damage can be further improved, and their survival time can be extended; adding specific agents helps control pests. In addition, this treatment method can ensure that the seeds obtain sufficient nutrition during germination, thereby enhancing the seedling quality and increasing the seedling emergence rate.

[0003] In the prior art, Patent CN 1072053A discloses a microparticle seed coating and pelleting process that forms a coating on the surface of seeds through an adhesive and coating materials. For microparticle seeds, in the actual implementation of this pelleting process, the seeds are prone to form multi-seed adhering seed clusters, and the seed clusters become larger and larger, affecting subsequent sowing. In addition, for seeds with irregular shapes, it is difficult for the seeds to form regular spherical shapes during the pelleting process, and the consistency of the pelleted seeds is poor. Summary of the Invention

[0004] Object of the Invention: In order to overcome the deficiencies in the prior art, the present invention provides a high-quality pelleting process for agricultural seeds that can effectively prevent multi-seed adhesion of seeds and ensure the consistency of the pelleted seeds.

[0005] Technical Solution: To achieve the above object, the high-quality pelleting process for agricultural seeds of the present invention includes:

[0006] Adding seeds to a rotating rotary kettle, spraying water into the rotary kettle and adding pelleting powder to form a coating layer on the surface of the seeds;

[0007] During the pelleting process, when multi-seed adhesion occurs to the pelleted seeds in the rotary kettle, add glass balls to the rotary kettle to mix the glass balls with the pelleted seeds so that the glass balls participate in the pelleting operation until the size of the pelleted seeds reaches the preset requirement. The above-mentioned pelleted seeds refer to the seeds with a coating layer of pelleting powder already formed on their surfaces.

[0008] With the above structure, by adding glass balls and mixing them with the pelleted seeds, on the one hand, the glass balls can impact the pelleted seeds that have already formed multi-seed adhesion in the rotary kettle, causing the pelleted seeds adhered together to separate from each other, effectively preventing the multi-seed clusters from growing larger and affecting subsequent sowing; on the other hand, during the process of the pelleted seeds continuing to pellet and grow larger, the glass balls act on the pelleted seeds, making the shape of the pelleted seeds regular, forming standard spheres faster, effectively improving the quality of the pelleting operation, and at the same time continuing to prevent the pelleted seeds from sticking to each other.

[0009] Furthermore, the diameter of the glass balls is close to the length of the pelleted seeds when the glass balls are added. In actual implementation, glass balls of various specifications can be prepared. When the time to add the glass balls arrives, according to the length of the pelleted seeds in the rotary kettle, select glass balls with a diameter close to the average length of the pelleted seeds and add them to the rotary kettle.

[0010] Furthermore, the ratio range of the number of glass balls to the number of pelleted seeds is 1 / 3 - 1 / 2. With this mixing ratio, the ratio of glass balls to pelleted seeds is reasonable, and the glass balls can effectively break up the adhered seed clusters without missing any seed clusters. And with the above number ratio, the glass balls can fully participate in the operation of plasticizing the pelleted seeds, ensuring the consistency of the shape of the seeds after pelleting.

[0011] Furthermore, before adding the seeds to be pelleted into the rotary kettle, the pelleting process further includes the following steps:

[0012] Step a), weigh all the seeds to be pelleted to obtain the first weight m1;

[0013] Step b), take a part of the seeds to be pelleted as a sample, weigh the sampled seeds to obtain the second weight m2, and count the number of the sampled seeds to obtain the number of seeds x;

[0014] Step c), based on the second weight m2 and the number of seeds x, obtain the average weight per single seed m = m2 / x;

[0015] Step d), based on the average weight per single seed m and the first weight m1, calculate the total number of seeds X1 = m1 / m;

[0016] Step e), based on the total number of seeds X1 and the number ratio, determine the number of glass balls to be put in X2.

[0017] With the above structure, it is possible to reasonably calculate the total number of seeds to be pelleted, and accordingly obtain the number of glass balls to be put in, ensuring a reasonable and accurate ratio of the number of glass balls to the pelleted seeds.

[0018] Further, after adding the glass balls into the rotary kettle, increase the rotation speed of the rotary kettle. Before adding the glass balls, the rotary kettle runs at a low speed, so that the pelleting powder can fully fill the grooves and other features on the seed surface under the wetting action of water, and the seeds attached with the pelleting powder can gradually become ellipsoidal. After adding the glass balls, increasing the rotation speed can make full use of the characteristics of the heavy weight of the glass balls to impact the pelleted seeds, and promote a large relative movement between the glass balls and the pelleted seeds, so as to improve the shaping effect of the glass balls on the pelleted seeds.

[0019] Further, the pelleting process further includes: after the diameter of the pelleted seeds reaches the pelleting requirement, drying the pelleted seeds with hot air, so that the hardness of the coating layer on the seed surface becomes higher and it is not easy to fall off and deform.

[0020] Beneficial effects: The high-quality pelleting process for agricultural seeds of the present invention has the following beneficial effects:

[0021] (1) It can effectively ensure the pelleting effect and quality. Especially for irregular seeds with complex shapes, by adding glass balls, the phenomenon of multi-seed adhesion can be effectively prevented, so that the pelleted seeds are standard spheres, improving the sowing performance of the seeds and facilitating subsequent sowing operations of the pelleted seeds.

[0022] (2) The glass balls have the characteristics of smooth surface and moderate weight. Not only will the surface of the glass balls not adhere to the pelleting powder, but the glass balls can well assist in seed pelleting. The coating layer on the surface of the pelleted seeds has the characteristics of being dense and having a higher hardness, and it is not easy to cause defects such as cracking and peeling of the coating layer due to factors such as stirring and bumping during the sowing process, which can prevent subsequent sowing failures.

[0023] (3) Select glass balls with a diameter basically consistent with the length of the pelleted seeds to participate in the pelleting operation. The glass balls and the pelleted seeds can be fully mixed and moved, ensuring the mixing uniformity of the two. The glass balls can deeply participate in the operations of preventing adhesion and shaping the coating layer, and the glass balls are not easy to damage the coating layer that has already formed on the seed surface. Description of the Drawings

[0024] Figure 1 is a schematic flow chart of the high-quality pelleting process for agricultural seeds;

[0025] Figure 2 is a schematic flow chart for calculating the number of glass balls to be put in. Detailed Embodiments

[0026] The present invention will be further described in detail below with reference to the drawings.

[0027] Figure 1 A high-quality pelleting process for agricultural seeds is provided, and the pelleting process includes the following steps S1 - S2:

[0028] Step S1: Add seeds into a rotating rotary kettle, spray water into the rotary kettle and add pelleting powder to form a coating layer on the surface of the seeds.

[0029] Step S2: After the diameter of the pelleted seeds reaches the pelleting requirement, hot air dry the pelleted seeds so that the hardness of the coating layer on the seed surface becomes higher and it is not easy to fall off and deform.

[0030] During the above pelleting process, when multi-seed adhesion occurs to the pelleted seeds in the rotary kettle, add glass balls into the rotary kettle to mix the glass balls with the pelleted seeds so that the glass balls participate in the pelleting operation until the size of the pelleted seeds reaches the preset requirement. The above-mentioned pelleted seeds refer to the seeds with a pelleting powder coating layer already formed on the seed surface.

[0031] With the above structure, by adding glass balls and mixing them with the pelleted seeds, on the one hand, the glass balls can impact the pelleted seeds that have already formed multi-seed adhesion in the rotary kettle, causing the adhered pelleted seeds to separate from each other, effectively preventing the multi-seed mass from getting larger and affecting subsequent sowing; on the other hand, during the process of the pelleted seeds continuing to pellet and grow larger, the glass balls act on the pelleted seeds to make the shape of the pelleted seeds regular, form a standard sphere faster, effectively improve the quality of the pelleting operation, and at the same time continue to prevent the pelleted seeds from sticking to each other.

[0032] The above pelleting process can effectively ensure the pelleting effect and quality. Especially for irregular seeds with complex shapes, by adding glass balls, the multi-seed adhesion phenomenon can be effectively prevented, so that the pelleted seeds are standard spheres, improving the sowing ability of the seeds and facilitating the subsequent sowing operation of the pelleted seeds. The glass balls have the characteristics of smooth surface and moderate weight, and can well assist in seed pelleting. The coating layer on the surface of the pelleted seeds after pelleting has the characteristics of being dense and having a relatively high hardness, and is not easy to cause defects such as cracking and falling off of the coating layer due to factors such as stirring and bumping during the sowing process, which can prevent subsequent sowing failures.

[0033] Specifically, the diameter of the glass balls is close to the length of the pelleted seeds when the glass balls are added. In actual implementation, glass balls of various specifications can be prepared. When the time to add glass balls arrives, according to the length of the pelleted seeds in the rotary kettle, select glass balls with a diameter close to the average length of the pelleted seeds and add them to the rotary kettle.

[0034] Preferably, the ratio of the number of glass balls to the number of pelleted seeds ranges from 1 / 3 to 1 / 2. With this mixing ratio, the ratio of glass balls to pelleted seeds is reasonable, and the glass balls can effectively disperse the adhered seed clusters without any seed clusters being left out. Moreover, with the above-mentioned ratio of the number of grains, the glass balls can fully participate in the operation of shaping the pelleted seeds to ensure the consistency of the shape of the seeds after pelleting.

[0035] Preferably, as Figure 2 shown, before adding the seeds to be pelleted into the rotary kettle, the pelleting process further includes the following steps:

[0036] Step a), weighing all the seeds to be pelleted to obtain the first weight m1;

[0037] Step b), taking a part of the seeds to be pelleted as a sample, weighing the sampled seeds to obtain the second weight m2, and counting the sampled seeds to obtain the number of seeds x;

[0038] Step c), obtaining the average weight m of a single seed based on the second weight m2 and the number of seeds x, where m = m2 / x;

[0039] Step d), calculating the total number of seeds X1 = m1 / m based on the average weight m of a single seed and the first weight m1;

[0040] Step e), determining the number of glass balls X2 to be put in based on the total number of seeds X1 and the ratio of the number of grains.

[0041] With the above structure, it is possible to reasonably calculate the total number of seeds to be pelleted, and accordingly obtain the number of glass balls to be put in, ensuring a reasonable and accurate ratio of the number of glass balls to the pelleted seeds.

[0042] Preferably, after adding the glass balls to the rotary kettle, increase the rotation speed of the rotary kettle. Before adding the glass balls, the rotary kettle runs at a low speed, so that the pelleting powder can fully fill the grooves and other features on the surface of the seeds under the wetting action of water, and the seeds attached with the pelleting powder can gradually become ellipsoidal. After adding the glass balls, increasing the rotation speed can make full use of the characteristic that the glass balls are heavier to impact the pelleted seeds, and promote a large relative movement between the glass balls and the pelleted seeds, improving the shaping effect of the glass balls on the pelleted seeds.

[0043] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A high-quality pelleting process for agricultural seeds, the pelleting process comprising: Adding seeds into a rotating rotary kettle, spraying water into the rotary kettle and adding pelleting powder to form a coating layer on the surface of the seeds; It is characterized in that: During the pelleting process, when multi-seed adhesion occurs to the pelleted seeds in the rotary kettle, glass balls are added into the rotary kettle to mix the glass balls with the pelleted seeds so that the glass balls participate in the pelleting operation until the size of the pelleted seeds reaches the preset requirement; the particle number ratio range of the glass balls to the pelleted seeds is 1 / 3 - 1 / 2; before adding the glass balls, the rotary kettle runs at a low speed, and after adding the glass balls into the rotary kettle, the rotation speed of the rotary kettle is increased.

2. The high-quality pelleting process for agricultural seeds according to claim 1, characterized in that, Before adding the seeds to be pelleted into the rotary kettle, the pelleting process further comprises the following steps: Step a), weighing all the seeds to be pelleted to obtain the first weight m1; Step b), taking a partial sample from all the seeds to be pelleted, weighing the sampled seeds to obtain the second weight m2, and counting the sampled seeds to obtain the seed number x; Step c), obtaining the average weight of a single seed m = m2 / x based on the second weight m2 and the seed number x; Step d), calculating the total number of seeds X1 = m1 / m based on the average weight of a single seed m and the first weight m1; Step e), determining the number of glass balls to be put in X2 based on the total number of seeds X1 and the particle number ratio.

3. The high-quality pelleting process for agricultural seeds according to claim 1, characterized in that, The pelleting process further comprises: after the diameter of the pelleted seeds reaches the pelleting requirement, hot air drying the pelleted seeds.

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