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Functional compound fertilizer coating material and application thereof

A technology of wrapping material and compound fertilizer, applied in application, inorganic fertilizer, layered/coated fertilizer, etc., can solve the problems of especially serious environmental pollution, high cost, and reduce the effectiveness of nutrient elements, and achieve good anti-caking effect, Good quality and easy operation

Inactive Publication Date: 2016-06-29
HUBEI NEWYANGFENG FERTILIZER STOCK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of anti-caking agent compounded by engine oil, wax substances and surfactants is absorbed by the fertilizer particles after the engine oil overflows. The engine oil has serious harm to the germination and root system of crops, and the long-term use of it will especially pollute the environment.
For example, Chinese Patent Publication No. CN101654387A discloses that a compound fertilizer liquid anti-caking agent is composed of 1-50wt% water-based polymer, 1-50wt% surfactant and water, preferably added in an amount of 0.01wt% of the compound fertilizer ~0.1wt%, its advantage is that the addition amount is small, the disadvantage is that the cost is high, it has no fertilizer effect on crops, and most polymers, such as sodium polyacrylate mentioned in the examples, can react with more than divalent metal ions, such as iron, calcium, Zinc and magnesium ions form insoluble salts, causing molecular cross-linking and gelation precipitation, reducing the availability of crop nutrients

Method used

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  • Functional compound fertilizer coating material and application thereof
  • Functional compound fertilizer coating material and application thereof
  • Functional compound fertilizer coating material and application thereof

Examples

Experimental program
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Effect test

Embodiment 2

[0021] The present invention is achieved through the following technical solutions:

[0022] The compound fertilizer wrapping material is carried out according to the following steps: (1) Conventional compound fertilizer is granulated and dried in a drying cylinder; (2) At the end of the drying barrel, 6.4kg of compound fertilizer is sprayed into the wrapping material per ton, and the wrapping material is made of a single The granular material is composed of zinc oxide, and then sprayed with dilute acid. The dilute acid is prepared by adding 6.4kg of 98% concentrated sulfuric acid per ton of compound fertilizer and 1 times of water to make dilute acid. The wrapping material forms a dense layer on the particle surface to prevent compaction and increase the compound fertilizer The role of micronutrient nutrient content.

[0023] Application effect: 1. Packed according to 50kg / bag, 5 packs per layer, 20 layers in total, inspected once a month, after 6 months of storage, no caking...

Embodiment 3

[0028] The present invention is achieved through the following technical solutions:

[0029] The compound fertilizer wrapping material is carried out according to the following steps: (1) Conventional compound fertilizer is granulated and dried in a drying cylinder; (2) 3*17 products are sprayed into the wrapping material 8kg per ton of compound fertilizer at the end of the drying barrel, and wrapped The material is composed of a single particle material, magnesium oxide, and then sprayed with dilute acid. The dilute acid is prepared by adding 4kg of 98% concentrated sulfuric acid per ton of compound fertilizer and 1 times of water to make dilute acid; the 15-5-25 nitro compound fertilizer product is at the end of the drying cylinder. Spray 4.8kg of wrapping material per ton of compound fertilizer. The wrapping material is composed of a single particle material, magnesium oxide, and then sprayed with dilute acid. The material forms a dense layer on the particle surface to prev...

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PUM

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Abstract

The invention discloses a granular compound fertilizer with a functional coating material. The granular compound fertilizer is composed of a granular compound fertilizer body and the functional coating material, and the coating material coats the outer surface of the granular compound fertilizer body. The granular compound fertilizer is characterized in that the coating material is a particulate zinc oxide material and / or a particulate magnesium oxide material. A processing method includes: before drying of compound fertilizer granules, uniformly spraying the coating material and then spraying diluted acid by taking the advantages of surface moisture and temperature of the compound fertilizer granules. The surface temperature of granules at the tail end of a compound fertilizer drying drum is about 45-80 DEG C, the particulate zinc oxide and magnesium oxide powder are sprayed to coat the compound fertilizer granules when the surfaces of the granules are moist, the diluted acid is sprayed to form a compact layer on the granule surface when the granules are moist, and simplicity in operation and excellent hardening proofing effects are achieved.

Description

technical field [0001] The invention belongs to the technical field of agricultural fertilizers, and in particular relates to a functional compound fertilizer wrapping material and its application. Background technique [0002] Currently commonly used anti-caking agents for compound fertilizers can be divided into: (1) Inert powders, such as kaolin, silicon dioxide, diatomaceous earth and talcum powder, etc. The advantages of this type of anti-caking agents are low price, and the disadvantages are generally large dosage and high Nutrient products have a greater impact; (2) Non-surfactant organic compounds, such as paraffin, engine oil, etc., this type of anti-caking agent has the advantages of low price, disadvantages of single function, and general use effect; (3) Surfactants, including anionic , cationic and non-ionic, the advantages of this type of anti-coagulation agent are that it can effectively reduce the surface tension of the particle surface solution, reduce the ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00C05D5/00C05D9/02
CPCC05D5/00C05D9/02C05G5/30C05G1/00
Inventor 邵海峰付捷尹涛
Owner HUBEI NEWYANGFENG FERTILIZER STOCK