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Melted pelleting seaweed stable fertilizer and preparation method thereof

A technology of melt granulation and stability, applied in fertilizer mixture, fertilization device, agricultural gas emission reduction, etc., can solve the problems that restrict the popularization and application of seaweed fertilizer, uneven distribution of product nutrients, cumbersome production process, etc., and achieve the effect of increasing production Significantly, the effect of improving fertilizer utilization rate and reducing fertilizer loss

Inactive Publication Date: 2012-06-20
STANLEY AGRI GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Domestic existing small-scale production of seaweed fertilizer products such as biological seaweed fertilizer (CN101585723A), liquid seaweed fertilizer (CN101691546A), seaweed urea (CN101486619A) and seaweed functional fertilizer (CN101265139A), but these products are more loaded down with trivial details in the production process, High energy consumption, uneven nutrient distribution and high salinity of the product, etc., severely restrict the popularization and application of seaweed fertilizer due to the above shortcomings

Method used

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  • Melted pelleting seaweed stable fertilizer and preparation method thereof
  • Melted pelleting seaweed stable fertilizer and preparation method thereof

Examples

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example 1

[0052]520 kg of solid urea, together with 1 kg of combined urease inhibitor, 1 kg of combined nitrification inhibitor and 10 kg of concentrated seaweed extract, was heated to 136°C to form a molten liquid, and 114 kg of monoammonium phosphate, 300 kg of potassium sulfate, and 54 kg of talcum powder were added to the In the above molten liquid, stir and mix for 2-3 minutes, the slurry temperature is 110-115°C, and the slurry containing suspended solids passes through the granulator to become droplets and falls from the granulation tower with a height of 106 meters. Heat and mass transfer, cooling and solidification into small pellets of 1-4 mm to obtain granular melt granulated seaweed stabilized fertilizer.

[0053] Wherein, the combined urease inhibitor consists of N-n-butylthiophosphoric triamide (C 4 h 14 N 3 PS, nBPT), hydroquinone (C 6 h 6 o 2 , HQ) and phenyl phosphoric acid diamide (C 6 h 9 N 2 PO, PPD) are combined according to the weight ratio of 1:1:1; the co...

example 2

[0056] Take 520 kg of urea solution or melt at the outlet of the second-stage evaporator of the urea plant, the concentration is greater than 99%, and the temperature is about 140°C, add 1.0 kg of combined nitrification inhibitor, 1 kg of combined urease inhibitor, and 10 kg of concentrated seaweed extract, stir and mix, and then Add 345kg of powdered monoammonium phosphate, 100kg of potassium sulfate, 43kg of calcium powder, and 30kg of attapulgite clay, stir and mix for about 2 minutes, the slurry temperature is 110-120°C, and the slurry containing suspended solids passes through the granulator to become droplets It falls from the prilling tower with a height of 106 meters, conducts heat and mass transfer with the updraft, cools and solidifies into small pellets of 1-4 mm, which is granular melt granulated seaweed stable fertilizer.

[0057] Wherein, the combined urease inhibitor consists of N-n-butylthiophosphoric triamide (C 4 h 14 N 3 PS, nBPT), hydroquinone (C 6 h 6 ...

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Abstract

The invention discloses a melted pelleting seaweed stable fertilizer and a preparation method thereof and relates to the technical field of compound fertilizer production. The method comprises the following steps: preparing the specific components, namely, urea, monoammonium phosphate, potassium sulfate, compound urease inhibitor, compound nitrification inhibitor, seaweed concentrated extract and stuffing; heating; mixing; pelleting; and cooling. The melted pelleting seaweed stable fertilizer has the advantages of being natural, green and pollution-free, good yield-increasing effect, improved crop quality, increased plant stress tolerance, reduced energy consumption and capability of saving energy.

Description

technical field [0001] The invention relates to the technical field of compound fertilizer production, in particular to a melt granulated seaweed stabilized fertilizer and a manufacturing method thereof. Background technique [0002] For a long time, due to the excessive application of chemical fertilizers, the ecological environment of the farmland, the physical and chemical forms of the soil, and the soil microbiota have been damaged to varying degrees, which has a great impact on the quality of agricultural products. At present, fertilizers made of natural organic raw materials have been widely used, and are gradually replacing and reducing the application of chemical fertilizers. [0003] Seaweed is rich in sodium, potassium, iron, calcium and other inorganic elements and various amino acids, polysaccharides, fibers, fatty acids and natural plant growth regulators. Therefore, as a renewable resource, seaweed is characterized by its unique nutritional components and signi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/08C05G3/90
CPCY02P60/21
Inventor 高进华赵玉平周丽李元峰解学仕
Owner STANLEY AGRI GRP CO LTD
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