Synergistic urea ammonium nitrogen fertilizer and preparation method of same

A technology of ammonium urea nitrogen fertilizer and synergist, which is applied in the direction of nitrogen fertilizer, fertilization equipment, fertilizer mixture, etc., can solve the problems of complex granulation process, high energy consumption, large investment, etc., and achieve cost reduction, low operating temperature, energy saving and reduction cost effect

Inactive Publication Date: 2016-01-13
云南天和地农业营养科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above granulation process is complex, large investment, drying temperature between 200-400 ℃, high energy consumption of water, electricity and coal, and the production cost per ton is more than 150 yuan, and it is not suitable for granulation of pure nitrogen fertilizer

Method used

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  • Synergistic urea ammonium nitrogen fertilizer and preparation method of same
  • Synergistic urea ammonium nitrogen fertilizer and preparation method of same
  • Synergistic urea ammonium nitrogen fertilizer and preparation method of same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] By weight components, take by weighing 18.2 parts of zinc sulfate, 27.3 parts of boric acid and 54.5 parts of polyaspartic acid, and mix to obtain a synergist;

[0033] According to the components by weight, weigh 10 parts of magnesium sulfate heptahydrate, 35 parts of urea, 50 parts of ammonium sulfate and 5 parts of synergist, mix for 3 minutes, the crystal water will gradually precipitate out, gradually integrate each component, and transport it through the conveyor belt Carry out crushing in the crushing equipment, pass through a 10-mesh sieve, granulate (the particle size is between 0.2-0.4mm), and dry at 80°C until the moisture content of the fertilizer is lower than 3% (mass ratio).

[0034] The test results are shown in Table 1.

[0035] The detection result of table 1 embodiment 1 gained product

[0036]

[0037]

Embodiment 2

[0039] By weight components, take by weighing 20 parts of zinc sulfate, 25 parts of boric acid and 55 parts of polyaspartic acid, and mix well to obtain a synergist;

[0040] According to the weight components, weigh 15 parts of magnesium sulfate heptahydrate, 30 parts of urea, 47 parts of ammonium sulfate and 8 parts of synergist, mix for 5 minutes, the crystal water will gradually separate out, and gradually integrate each component, and transport it through the conveyor belt Put it into a crushing equipment for crushing, pass through a 20-mesh sieve, granulate (the particle size is between 0.2-0.4mm), and dry at 40°C until the moisture content of the fertilizer is lower than 3% (mass ratio).

[0041] The test results are shown in Table 2.

[0042] The detection result of table 2 embodiment 2 gained products

[0043]

[0044]

Embodiment 3

[0046] By weight components, take 15 parts of zinc sulfate, 30 parts of boric acid and 55 parts of polyaspartic acid, and mix well to obtain a synergist;

[0047] According to the weight components, weigh 8 parts of magnesium sulfate heptahydrate, 40 parts of urea, 50 parts of ammonium sulfate and 2 parts of synergist, mix for 4 minutes, the crystal water will gradually precipitate out, and the components will be gradually integrated, and transported by the conveyor belt Put it into a crushing equipment for crushing, pass through a 20-mesh sieve, granulate (the particle size is between 0.2-0.4mm), and dry at 100°C until the moisture content of the fertilizer is lower than 3% (mass ratio).

[0048] The test results are shown in Table 3.

[0049] The detection result of table 3 embodiment 3 gained products

[0050]

[0051]

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Abstract

The invention discloses a synergistic urea ammonium nitrogen fertilizer and a preparation method of same and belongs to the technical field of fertilizer processing. The synergistic urea ammonium nitrogen fertilizer includes magnesium sulfate heptahydrate, urea, ammonium sulfate and a synergistic agent which is prepared from following components, by weight, 15-20 parts of zinc sulfate, 25-30 parts of boric acid and 50-60 parts of polyaspartic acid. The synergistic urea ammonium nitrogen fertilizer is high in utilization rate, is comprehensive in nutrients, is quick in effect and is low in preparation cost and investment.

Description

technical field [0001] The invention belongs to the technical field of fertilizer processing, and in particular relates to a synergistic ammonium urea nitrogen fertilizer and a preparation method thereof. Background technique [0002] At present, when producing nitrogen-containing fertilizers at home and abroad, solid urea or ammonium nitrate (ammonium nitrate, etc.) is generally heated and melted to form a molten liquid, or the molten liquid after evaporation and concentration is directly used, and then the corresponding Phosphate fertilizer, potash fertilizer, filler and additives are made into mixed slurry. The mixed slurry is sent to a high tower granulator for spraying and granulation, and the granular compound fertilizer is obtained after sieving and surface treatment. The granulated material sprayed into the granulation tower through the granulator interacts with the gas resistance rising from the bottom of the tower during the process of descending from the high tow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00C05C9/00C05D9/02
Inventor 陈兴庭
Owner 云南天和地农业营养科技有限责任公司
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