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Surface colored granular chemical fertilizer and producing method thereof

A surface coloring and granulation technology, applied in fertilizer forms, fertilization devices, fertilizer mixtures, etc., can solve the problems of inability to effectively overcome the problem of granular fertilizer agglomeration, inability to effectively promote crop growth, and crops without slow application of fertilizer effects. The effect of spreading and transporting properties, color stability, and low production costs

Inactive Publication Date: 2005-03-30
YUNNAN TIANAN CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it cannot effectively overcome the agglomeration problem of granular chemical fertilizers during transportation or use, which makes it difficult to spread the agglomerated fertilizer and easily causes uneven fertilization
In addition, the existing colored granular chemical fertilizers do not have the effect of slow application of fertilizer effect on crops, and cannot effectively promote the growth of crops, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1. Prepare ingredients according to the following proportions:

[0021] 5.4 kg of heavy oil, 0.6 kg of oil soluble black;

[0022] 2. Add the above-mentioned colorant into the dissolving tank, heat to 50°C, melt it, and stir it evenly to obtain a black-brown colorant;

[0023] 3. Spray the above-mentioned liquid colorant into the coating machine with a gear oil pump, so that the surface of the heavy calcium granular fertilizer passing through the coating machine is evenly colored, thereby making 1 ton of granular heavy calcium fertilizer with a dark brown surface.

Embodiment 2

[0025] 1. Prepare ingredients according to the following proportions:

[0026] 6.4 kg of heavy oil, 1.6 kg of oil-soluble black;

[0027] 2. Add the above-mentioned colorant into the dissolving tank, heat to 50°C, melt it, and stir it evenly to make a black colorant;

[0028] 3. Spray the above-mentioned liquid colorant into the wrapping machine with a gear oil pump, so that the surface of the granular fertilizer passing through the wrapping machine is uniformly colored, thereby making 1 ton of NPK granular compound fertilizer with a dark black surface.

Embodiment 3

[0030] 1. Prepare ingredients according to the following proportions:

[0031] 3.8 kg of heavy oil, 0.2 kg of oil-soluble black;

[0032] 2. Add the above-mentioned colorant into the dissolving tank, heat to 60°C, melt it, and stir it evenly to obtain a black-brown colorant;

[0033] 3. Spray the above-mentioned liquid colorant into the wrapping machine with a gear oil pump, so that the surface of the granular chemical fertilizer passing through the wrapping machine is evenly colored, so as to obtain 1 ton of granular calcium-rich fertilizer with a light brown surface.

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Abstract

A surface-colored granular chemical fertilizer is characterized by that the coloring layer on the surface of chemical fertilizer particle is prepared from basic oil type solvent, pigment, paraffin wax and asphalt and has different colors for distinguishing one from another and preventing it from being blocked. Its advantages are slow releasing, uniform and stable color, and high strength.

Description

technical field [0001] The invention relates to a granular chemical fertilizer and a production method thereof, in particular to a surface-colored granular chemical fertilizer and a production method thereof. Background technique [0002] Because granular chemical fertilizers have more outstanding spreading performance and use performance than other chemical fertilizers, granular chemical fertilizers are widely used in the growth of various crops. Chinese patent CN1062847 discloses a "Nitrogen, Phosphorus, Potassium Ternary Compound Fertilizer Colored on the Particle Surface and Its Production Method". It is coated with a dyeing layer formed by a dyeing agent on the surface of the granular fertilizer base body. The dyeing layer is made of a mixture of base oil solvents and pigments. Its purpose is to allow users to visually distinguish various types of granular fertilizers. However, it cannot effectively overcome the caking problem of granular chemical fertilizers during tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00C05G5/00
Inventor 张应虎王锡洲芮树斌张丽美杨国安孙云庆
Owner YUNNAN TIANAN CHEM CO LTD
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