Humic acid-containing compound fertilizer and preparation method thereof

A humic acid and compound fertilizer technology, which is applied in urea compound fertilizer, ammonium orthophosphate fertilizer, alkaline orthophosphate fertilizer and other directions, can solve the problems of inability to increase the content of humic acid, reducing the difficulty of the process, and troughing, etc. Achieve the effect of solving the difficulty of granulation, reducing the difficulty of the process and improving the stability

Inactive Publication Date: 2021-12-31
徐州市芭田生态有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a preparation method of compound fertilizer containing humic acid, through the collocation of raw materials and batch dosing, effectively solve the problem of the generation of bubbles and grooves after the mixing of humic acid and nitrogen and potassium melt Reduce the water content of the product to less than 3%, solve the problem that the content of humic acid in the product cannot be increased when the high-tower process is used to produce compound fertilizers, and reduce the difficulty of the process

Method used

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  • Humic acid-containing compound fertilizer and preparation method thereof

Examples

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Effect test

Embodiment 1

[0055] A compound fertilizer containing humic acid, prepared from the following raw materials in parts by weight: 50 parts of urea, 1 part of ammonium phosphate, 10 parts of potassium chloride, 55 parts of humic acid, 5 parts of organic matter, 5 parts of phosphorus and potassium fertilizer, Effect agent 1 part; Among them, the organic matter is the mixture of potassium humate, cellulose and decomposed animal and plant residues.

[0056] The preparation method of the above-mentioned compound fertilizer containing humic acid, such as figure 1 As shown, it specifically includes the following steps:

[0057] (1) 50 parts of urea and 5 parts of potassium chloride are dropped into a melting tank with a temperature of 120° C. through a belt conveyor, weighing scale and bucket elevator to obtain nitrogen and potassium molten liquid;

[0058] (2) When the nitrogen and potassium molten liquid overflowed from the melting tank to the first-level tank, the temperature of ammonium phospha...

Embodiment 2

[0063] A compound fertilizer containing humic acid, prepared from the following raw materials in parts by weight: 30 parts of urea, 20 parts of ammonium phosphate, 5 parts of potassium sulfate, 10 parts of humic acid, 0 part of organic matter, 15 parts of phosphorus and potassium fertilizer, synergistic Agent 0 parts; Among them, the organic matter is the mixture of potassium humate, cellulose and decomposed animal and plant residues.

[0064] The preparation method of the above-mentioned compound fertilizer containing humic acid, such as figure 1 As shown, it specifically includes the following steps:

[0065] (1) 30 parts of urea and 3 parts of potassium sulfate are dropped into a melting tank with a temperature of 125°C through a belt conveyor, a metering scale and a bucket elevator to obtain nitrogen and potassium molten liquid;

[0066] (2) When the nitrogen and potassium molten liquid overflows from the melting tank to the first-level tank, the temperature of ammonium p...

Embodiment 3

[0071] A compound fertilizer containing humic acid, prepared from the following raw materials in parts by weight: 45 parts of urea, 10 parts of ammonium phosphate, 20 parts of potassium chloride, 40 parts of humic acid, 10 parts of organic matter, 10 parts of phosphorus and potassium fertilizer, Effect agent 1 part; Among them, the organic matter is the mixture of potassium humate, cellulose and decomposed animal and plant residues.

[0072] The preparation method of the above-mentioned compound fertilizer containing humic acid, such as figure 1 As shown, it specifically includes the following steps:

[0073] (1) 45 parts of urea and 3 parts of potassium chloride are dropped into the melting tank that temperature is 122 ℃ through belt conveyor, metering scale and bucket elevator, to obtain nitrogen and potassium molten liquid;

[0074] (2) When the nitrogen and potassium molten liquid overflows from the melting tank to the first-level tank, the temperature of ammonium phospha...

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Abstract

The invention provides a humic acid-containing compound fertilizer and a preparation method thereof. The preparation method comprises the following steps: (1) mixing urea and a potash fertilizer, and heating to melt to obtain a nitrogen-potassium melt; (2) mixing a phosphate fertilizer, humic acid and the nitrogen-potassium melt, and heating to obtain a primary mixed solution; (3) mixing an organic matter, a synergist, a potassium fertilizer, a phosphorus-potassium fertilizer and humic acid with the first-stage mixed solution, and heating to obtain a second-stage mixed solution; and (4) granulating the secondary mixed solution to obtain the compound fertilizer containing humic acid. According to the invention, the raw materials are matched for use and added in batches, so that the problems of bubbles and overflow after the humic acid is mixed with the nitrogen-potassium melt are effectively solved, the water content of the product is reduced to less than 3%, the problem that the content of the humic acid in the product cannot be increased when the compound fertilizer is produced by a high-tower process is solved, and the process difficulty is reduced.

Description

technical field [0001] The invention relates to the field of fertilizer production, in particular to a compound fertilizer containing humic acid and a preparation method thereof. Background technique [0002] The high-tower process is one of the production methods of humic acid-containing compound fertilizers. The high-tower process generally uses high temperature to mix and melt the raw materials of the compound fertilizer, and then sprays the mixed and melted droplets, and sprays them through the air. The droplets are cooled and solidified to form particles. Compared with the conventional process of producing humic acid-containing compound fertilizer, the high-tower process has the advantages of stable production, less impact from the external environment, high production capacity, low manufacturing energy consumption, cleaner production environment, and environmental protection, while the high-tower process Compared with products produced by conventional processes, the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/80C05G5/12
CPCC05G3/80C05G5/12C05B7/00C05C9/00C05D1/02C05D3/00C05D5/00C05D9/02C05F1/00C05F11/00C05F11/02
Inventor 张彬臧继国廖威
Owner 徐州市芭田生态有限公司
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