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Preparation method of novel granular potassium chloride fertilizer

A manufacturing method and potassium chloride technology are applied in fertilizer mixtures, fertilization devices, applications, etc., and can solve the problems of low nutrient content, low particle strength, and high cost, and achieve high particle strength, low preparation cost, and high ball-forming rate. Effect

Active Publication Date: 2014-05-28
HUBEI FORBON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because potassium chloride belongs to sand material, it has no viscosity and plasticity, and it is difficult to granulate by conventional methods. It is very difficult to produce round granular potash fertilizers in the prior art, and there are disadvantages such as high cost, low nutrient content, and low particle strength (Chinese Patent No. CN1769248, CN1356298, CN102765994, CN1530349)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Add 2kg of powdered magnesium oxide to 100kg of potassium chloride with a nutrient content of 57, break it up and mix well. Send the mixture into a 1m disc granulator, spray a certain amount of water, granulate into balls, then dry and sieve, cool to normal temperature, and obtain 95kg of qualified granular potassium chloride, with a particle size greater than 2mm and less than 4mm. Granular strength 45N.

Embodiment 2

[0019] Add 5kg of powdered magnesium oxide to 100kg of potassium chloride with a nutrient content of 60, break it up, and mix well. Send the mixture into a 1m disc granulator, spray a certain amount of water, granulate into balls, then dry and sieve, cool to room temperature, and obtain 100kg of qualified granular potassium chloride, with a particle size greater than 2mm and less than 4mm, strength 50N.

Embodiment 3

[0021] Add 20kg of powdered magnesium oxide to 100kg of potassium chloride with a nutrient content of 62, break it up and mix it evenly. Send the mixture to the drum granulator, spray a certain amount of water, granulate into balls, then dry and sieve, cool to room temperature, and obtain qualified granular potassium chloride 110kg, particle size greater than 2mm and less than 4mm, strength 55N.

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Abstract

The invention discloses a preparation method of a novel granular potassium chloride fertilizer. The preparation method is characterized by comprising the following steps: adding a granular-making additive which accounts for 1%-20% of the total material amount into a raw material potassium chloride, uniformly mixing and putting the mixture into an agglomeration granulator, drying, cooling, and screening to obtain the novel epigranular pellet-shaped potassium chloride. The granular-making additive is powdery magnesium oxide. According to the invention, magnesium oxide is added into powdery potassium chloride. The powdery magnesium oxide plays a role in bonding and granulation and also plays a role in providing the nutrient element Mg required by crops. Diameter of the prepared novel granular potassium chloride fertilizer is 2-4 mm, and its granular strength is 40-60 N.

Description

technical field [0001] The invention relates to a manufacturing method of a novel granular potassium chloride fertilizer, and in particular discloses a method for making a novel granular potassium chloride fertilizer by using powdered magnesium oxide. Background technique [0002] Compared with powdered fertilizers, granular fertilizers have better physical properties, no dust during loading and unloading, no caking during long-term storage, good fluidity, easy to spread fertilizers, and can be mechanically fertilized. At the same time, they can also play a moderate slow-release effect. Improve the utilization rate of fertilizer. In addition, granular fertilizers of similar size can be directly blended to obtain low-cost blended fertilizers. [0003] Potassium chloride is a very important type of potassium fertilizer. The potassium chloride fertilizer on the market is mainly powdery and irregular potassium chloride obtained by extrusion granulation. In view of the developm...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 王仁宗涂辉聂响亮
Owner HUBEI FORBON TECH
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