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Tower-smelt organic-inorganic compound fertilizer and preparation method thereof

A compound fertilizer and inorganic technology, applied in the agricultural field, can solve the problems of poor solubility and high moisture content of fertilizers, and achieve the effect of low moisture content, high nutrient content, and soil improvement

Active Publication Date: 2013-06-05
山东欧化化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the fertilizer prepared by using these organic matter has high water content and poor solubility

Method used

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  • Tower-smelt organic-inorganic compound fertilizer and preparation method thereof

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Effect test

preparation example Construction

[0025] refer to figure 1 , is the flowchart of the preparation method of the organic-inorganic compound fertilizer of the present invention. The method includes:

[0026] Step 101, mixing urea solution or ammonium nitrate solution with potassium fertilizer to obtain a mixture;

[0027] Wherein, the potassium fertilizer is potassium chloride, and a filler is also included for mixing, and the filler can be one or more of ammonium sulfate, ammonium chloride, and dolomite powder.

[0028] Step 102, mixing and chelating potassium fulvic acid or ammonium humate, monoammonium phosphate and the mixture.

[0029] Mix potassium fertilizer and filler directly with urea solution heated to 130°C-170°C or ammonium nitrate solution heated to 130°C-170°C at 130°C-170°C. Then mix and chelate with monoammonium phosphate, potassium fulvic acid or ammonium humate.

[0030] The method of the invention uses potassium fulvic acid or ammonium humate as organic matter, which has high nutrient cont...

Embodiment 1

[0038] Compound fertilizer product specifications: according to mass percentage, N:P 2 O5:K 2 O=30:5:5, total nutrient ≥ 40%, organic matter ≥ 10%, moisture ≤ 2.0%. Nutrients refer to nitrogen, phosphorus, and potassium, and organic matter refers to potassium fulvate or ammonium humate.

[0039] Lift the urea, monoammonium phosphate, potassium chloride, potassium fulvic acid and filling agent into the silo at the top of the high tower with elevators respectively, and send the urea into the melting tank after metering, heat it to 130°C-170°C and pass through the overflow The flow is mixed and chelated with the metered monoammonium phosphate, potassium chloride, potassium fulvic acid and filler in the mixing tank, and then enters the granulator for spray granulation after being uniform, and after cooling and screening, the qualified The particles are surface treated, and then packaged for delivery.

[0040] Raw material and auxiliary material consumption table:

[0041] ...

Embodiment 2

[0043] Compound fertilizer product specifications: according to mass percentage, N:P 2 O5:K 2 O=20:4:16, total nutrient ≥ 40%, organic matter ≥ 16%, moisture ≤ 2.0%.

[0044] Lift the urea, monoammonium phosphate, potassium chloride, potassium fulvic acid and filling agent into the silo at the top of the high tower with elevators respectively, and send the urea into the melting tank after metering, heat it to 130°C-170°C and pass through the overflow The flow is mixed and chelated with the metered monoammonium phosphate, potassium chloride, potassium fulvic acid and filler in the mixing tank, and then enters the granulator for spray granulation after being uniform, and after cooling and screening, the qualified The particles are surface treated, and then packaged for delivery.

[0045] Raw material and auxiliary material consumption table:

[0046] Raw materials and auxiliary materials

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Abstract

The invention discloses a tower-smelt organic-inorganic compound fertilizer and a preparation method thereof. The invention relates to the agriculture technical field, and specifically relates to an organic-inorganic compound fertilizer and a preparation method thereof. The method comprises the following steps: A, mixing carbamide solution or ammonium nitrate solution with potash fertilizer to obtain the mixture; and B, mixing and chelating potassium fulvate or ammonium humate with the mixture. In the organic-inorganic compound fertilizer prepared by the method, the weight percentage of the total content of nitrogen, phosphorus and potassium is more than or equal to 20%, the weight percentage of the content of the potassium fulvate or the humate is more than or equal to 8%, and the weightpercentage of the content of moisture is less than or equal to 2.0%. The organic-inorganic compound fertilizer has quick action of the chemical fertilizer, and also has the long residual action, soilimprovement effect and multifunctional environmental protection of the organic fertilizer, achieving the multiple effects of developing agriculture, improving soil and the like.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to an organic-inorganic compound fertilizer and a preparation method thereof. Background technique [0002] In order to promote the rapid and high-quality growth of crops in agricultural production, fertilizers play an important role in agricultural development. [0003] The use of a large amount of chemical fertilizers has caused serious land compaction, widespread crop diseases and insect pests, a decline in the utilization rate of chemical fertilizers, and serious agricultural non-point source pollution. At present, the combination of chemical fertilizers and organic fertilizers to produce organic-inorganic compound fertilizers has become a hot spot in the production of chemical fertilizers. [0004] The existing method for preparing organic-inorganic compound fertilizers is to use steam humidification method to agglomerate or spray granulate, and to dope organic matter in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G1/00C05C9/00C05C1/00C05F11/02
Inventor 张博哲
Owner 山东欧化化工有限公司
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