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Coating type granular complex fertilizer product and production method thereof

A compound fertilizer and product technology, applied in chemical instruments and methods, potash fertilizers, silver compounds, etc., can solve problems such as fertilizer incompatibility

Active Publication Date: 2008-07-02
SHENZHEN BATIAN ECOTYPIC ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of brand-new product for the deficiencies in the prior art, be the coating type soluble compound fertilizer, because this compound fertilizer exists mother nucleus (kernel) and coating (coating) two-layer structure , so the problem of incompatibility of some fertilizers is solved, and potassium fertilizer is used as the coating material as a soluble fertilizer, providing a new type of compound fertilizer

Method used

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  • Coating type granular complex fertilizer product and production method thereof

Examples

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Effect test

Embodiment 1

[0018] Example 1: The inner core (2) in the picture is produced by the ordinary disc agglomeration granulation method, that is, using ordinary compound fertilizer raw materials, adding a variety of trace elements, amino acids, etc., the disc agglomeration granulation method is used to produce particles with a diameter of φ1.0mm The inner core (2) of the product with a diameter of φ3.9mm, after being dried and cooled, particles with a smooth surface and no dust are selected by sieving, and then the surface of the inner core (2) is coated with 80% potassium sulfate slurry through multiple spray coatings. A dense coating layer (1) with a thickness of 0.4mm~1.5mm is formed. After two-stage drying and cooling, the surface of the finished particles is polished, rounded and sprayed to prevent hardening. A coated granular compound fertilizer product is shaped .

Embodiment 2

[0019] Example 2: The inner core (2) in the figure is produced by the ordinary disc agglomeration granulation method, that is, using ordinary compound fertilizer raw materials, adding a variety of trace elements, amino acids, etc., the disc agglomeration granulation method is used to produce particles with a diameter of φ1.0mm The inner core (2) of the product with a diameter of φ3.9mm, after being dried and cooled, the particles with a smooth surface and no dust are selected by screening, and then 90% high-concentration potassium sulfate fertilizer slurry is sprayed and coated on the surface of the inner core (2) several times , Form a dense coating layer (1) with a thickness of 0.4mm~1.5mm, after two-stage drying and cooling, the surface of the finished particles is polished, rounded and sprayed to prevent hardening. A coated granular compound fertilizer product is forming.

Embodiment 3

[0020] Example 3: The inner core (2) in the picture is produced by the ordinary disc agglomerate granulation method, that is, the ordinary compound fertilizer raw materials are used to add various trace elements, amino acids, etc., and the disc agglomerate granulation method is used to produce particles with a diameter of φ1.0mm The inner core (2) of the product with a diameter of φ3.9mm, after drying and cooling, the particles with a smooth surface and no dust are selected by screening, and then the surface of the inner core (2) is coated with 97% potassium chloride slurry by multiple spray coating , Form a dense coating layer (1) with a thickness of 0.4mm~1.5mm, after two-stage drying and cooling, the surface of the finished particles is polished, rounded and sprayed to prevent hardening. A coated granular compound fertilizer product is forming.

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Abstract

The invention relates to coating particle compound fertilizer using potassium fertilizer as a coating material, which consists of an inner core and coating film, wherein, high concentration potassium fertilizer is adopted as the coating material. The slurry concentration of the coating film potassium fertilizer is 50 to 99 percent, and the product of the invention consists of a colored inner core with diameter of Phi 1.5mm to Phi 3.9mm and a shell with thickness of 0.4mm to 1.0mm, and the granular diameter of a finished product is between Phi 2.0mm to Phi 4.75mm. The invention adopts potassium fertilizer material as coating material for outer coating, which realizes the effect of the instant dissolving of the product and solves the problem of different concentration of the inner core and the outer core in the same particle; by adopting the invention, comprehensive nutrients can exist at the same time, thereby the compound fertilizer which is more suitable for soil and has more comprehensive nutrient ratio is provided; since the interior cores can adopt different colors and the different colored interior cores can be seen through the exterior coating with better transparence. Different products can adopt different colors, thus ensuring the product to get more elegance and selling points.

Description

Technical field [0001] The invention relates to a coated granular compound fertilizer product, in particular to a coated granular compound fertilizer product with an obvious color difference core and an instant-dissolvable outer film layer. Background technique [0002] At present, the coated granular compound fertilizer on the market uses PE+PU+ cosolvent to coat urea or compound fertilizer, which is a controlled release or slow release compound fertilizer. The second is a series of controlled-release compound fertilizers developed by Zhengzhou University of Technology with phosphoric acid as a binder. The other is to produce colored urea or slow-release urea by wrapping coated urea or compound fertilizer and a wrapping coating that only solves the problem of hardening of compound fertilizer. The above compound fertilizers are either insoluble or slow-dissolving to achieve controlled release or sustained release; either start from the change of urea appearance; or start from pro...

Claims

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Application Information

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IPC IPC(8): C01G1/00C01G5/00C05D1/00
Inventor 黄培钊黄德明王丰登
Owner SHENZHEN BATIAN ECOTYPIC ENG
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