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Whole water-soluble nitrogen fertilizer with relatively high pelletizing rate

A technology with a ball formation rate and water solubility, applied in nitrogen fertilizer, magnesium fertilizer, inorganic fertilizer, etc., can solve the problems of difficult granulation of fertilizers, low ball formation rate, etc., to improve particle roundness, improve ball formation rate, ensure Yield and quality effects

Active Publication Date: 2015-01-07
GAOTAI WANGDA LVHE FERTILIZER IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a fully water-soluble nitrogen fertilizer with a high pelleting rate, which solves the technical problems of difficult fertilizer granulation and low pelleting rate, and effectively ensures the yield and quality of fertilizers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0015] Taking the preparation of 10 tons of fully water-soluble nitrogen fertilizer as an example, the preparation method is as follows: take an appropriate amount of magnesium sulfate heptahydrate, urea, ammonium sulfate, DA-6 and other raw material components, mix and stir evenly, enter the raw material crushing, and then pass through After steam granulation by roller steam granulation, drying, cooling, secondary screening, and finally into the silo for automatic bag packaging, that is, the finished product of full water-based nitrogen fertilizer. Except for anhydrous sodium sulfate, other material components are the same, keep the steam pressure of the granulator at 0.4MPa, and the oven temperature before drying is 450 o About C, after drying, the furnace temperature is 70 o About C, under the conditions of this production process, the test data of anhydrous sodium sulfate to improve the ball forming rate are as follows:

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Abstract

The invention provides a whole water-soluble nitrogen fertilizer with a relatively high pelletizing rate. The whole water-soluble nitrogen fertilizer respectively comprises the following raw materials in percentage by weight: 20%-41% of magnesium sulfate heptahydrate, 19%-30% of carbamide, 20%-30% of ammonium sulfate, 11%-20% of anhydrous sodium sulfate and 0.1%-0.3% of added DA-6, wherein the anhydrous sodium sulfate is served as a raw material component of the fertilizer; on the one hand, the content of sulfur elements contained in the fertilizer is increased due to the addition of the anhydrous sodium sulfate, so that the sulfur elements of about 20% by weight are provided for crops; on the other hand, the anhydrous sodium sulfate as a pelletizing adhesion agent realizes different effects of water absorption and water loss in the pelletizing process, the drying process, the cooling process and the like of production, so that a proper liquid phase quantity needed by the production is ensured, the dispersion and adhesion of granules are effectively equilibrated, the effect of enhancing the roundness, uniformity and surface smoothness of the granules is achieved, the pelletizing rate of the fertilizer is obviously enhanced, and double indexes of output and quality in the production of the whole water-soluble nitrogen fertilizer are ensured.

Description

technical field [0001] The invention belongs to the technical field of agricultural fertilizers, and specifically refers to a fully water-soluble nitrogen fertilizer with a relatively high pelleting rate. Background technique [0002] my country is a large agricultural country. In order to meet population growth and economic development, it is necessary to increase crop production in agriculture. The main way to increase crop production on a limited arable land area is to increase the production per unit land area. One of the main measures to maintain high production is One is the rational and effective use of chemical fertilizers. Among them, nitrogen plays an important role in the growth of crops as one of the major elements required by crops, and water-soluble nitrogen fertilizer can supplement crop nutrition, improve crop stress resistance, improve and improve crop quality due to its instant solubility in water. Drip irrigation is applicable and other excellent propert...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
CPCC05C3/00C05G3/00C05C9/00C05D5/00C05D9/00
Inventor 孙兵夏翠琴
Owner GAOTAI WANGDA LVHE FERTILIZER IND CO LTD
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