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Production technology of slurry type compound fertilizer

A production process and compound fertilizer technology, which is applied in the direction of urea compound fertilizer, nitrogen fertilizer, potash fertilizer, etc., can solve the problem of limiting the nitrogen content in compound fertilizer, and achieve the effects of easy storage, good broad-spectrum, and low price

Active Publication Date: 2015-04-29
ANALYSIS & TESTING CENT CHINESE ACADEMY OF TROPICAL AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Urea is the fertilizer with the highest nitrogen content, but considering the characteristics of urea's easy moisture absorption and crystallization, when preparing slurry-type compound fertilizers, fertilizers other than urea are often used as nitrogen sources, which will greatly limit the nitrogen content of compound fertilizers. content increase

Method used

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  • Production technology of slurry type compound fertilizer
  • Production technology of slurry type compound fertilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of production technology of mud type compound fertilizer, comprises the following steps:

[0023] (1) According to the nutrient ratio required by the plant, allocate the ratio of each raw material of nitrogen source, phosphorus source, potassium source and trace element, add 1% starch and 10% water in terms of the total mass of fertilizer, stir and mix, The mixture is obtained; the fertilizer to be added is selected from urea, potassium sulfate, potassium dihydrogen phosphate, magnesium sulfate and zinc sulfate, and its specific ratio is prepared according to different plant physiological characteristics, wherein the nitrogen source, phosphorus source, potassium source and trace elements The mass ratio is nitrogen source: phosphorus source: potassium source: trace element=10:10:20:5;

[0024] (2) adding the mixture obtained in step (1) to a refiner for refining; refining to a particle size of less than 0.15mm to obtain a slurry-type compound fertilizer liquid;

...

Embodiment 2

[0027] A kind of production technology of mud type compound fertilizer, comprises the following steps:

[0028] (1) according to the nutrient ratio required by the plant, allocate the ratio of each fertilizer of nitrogen source, phosphorus source, potassium source and trace element, add 2% gelatinized starch and 25% water in terms of the total mass of fertilizer, stir and mix Evenly, the mixture is obtained; the added fertilizer is ammonium nitrate, ammonium chloride, potassium dihydrogen phosphate, potassium sulfate and magnesium sulfate, and the specific ratio is adjusted according to the needs of plant growth, wherein the nitrogen source, phosphorus source, potassium source and trace elements The mass ratio is, nitrogen source: phosphorus source: potassium source: trace element=25:20:35:10;

[0029] (2) adding the mixture obtained in step (1) to a refiner for refining; refining until the particle size is less than 0.15mm to obtain a slurry-type compound fertilizer;

[0030...

Embodiment 3

[0032] A kind of production technology of mud type compound fertilizer, comprises the following steps:

[0033] (1) According to the nutrient ratio required by the plant, allocate the ratio of each raw material of nitrogen source, phosphorus source, potassium source and trace elements, add 3% gelatinized starch and 40% water in terms of the total mass of fertilizer, stir and mix Uniform; add fertilizer and choose urea, liquid ammonia, diammonium phosphate, potassium chloride and zinc sulfate; the specific ratio is adjusted according to the needs of plant growth, wherein the mass ratio of nitrogen source, phosphorus source, potassium source and trace elements is , nitrogen source: phosphorus source: potassium source: trace element=40:30:50:15;

[0034] (2) The mixture obtained in step (1) is added into a refiner for refining; refining for 8 minutes to obtain a slurry-type compound fertilizer liquid;

[0035] (3) Bottling the slurry-type compound fertilizer liquid processed in ...

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Abstract

The invention relates to the field of compound fertilizer production, and discloses a production technology of a slurry type compound fertilizer. In the preparation process, an anti-blocking agent in added to effectively solve the crystallization and hardening problems of the slurry type compound fertilizer; the preparation of the compound fertilizer is not limited by the types of the nitrogen fertilizers, but can be precisely matched according to the plant nutritional requirement; the prepared slurry type compound fertilizer can be preserved for at least four months above at normal temperature, is not required to be stirred regularly, and further cannot generate the crystallization or hardening phenomenon; when being applied as a leaf fertilizer, the anti-blocking agent can be dissolved in water, so that the slurry type compound fertilizer cannot block a sprayer; after application of the fertilizer, the anti-blocking agent can be quickly decomposed, so as not to generate environment pollution; in the slurry grinding process, the ingredients are simply added, so that the production technology is simple, convenient and feasible in processing process, capable of saving labor and effort, and low in cost.

Description

technical field [0001] The invention relates to the field of compound fertilizer production, in particular to a production process of mud type compound fertilizer. Background technique [0002] Liquid compound fertilizer, also known as fluid compound fertilizer, includes clear liquid type (solution type), suspension type (suspension liquid) and mud type (serum type), among which clear liquid type fertilizer is completely dissolved, does not contain solid particles, is clear and transparent, and compound fertilizer The nutrient concentration is low, and the total nutrient content (N+P 2 o 5 +K 2 O) Generally not higher than 35%; Suspended fertilizer is a fluid compound fertilizer with a suspending agent, and the suspending agent is a clay mineral that can make slurry under stirring, such as bentonite, white clay, attapulgite, kaolin, sepiolite, etc. As an adsorbent, activated clay is widely used in the United States, and the dosage is about 1-2%; mud-type fertilizers are m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
CPCC05B1/02C05B7/00C05G3/20C05C9/00C05D1/02C05D5/00C05D9/02C05C1/00C05C3/00C05C5/02
Inventor 谢德芳李胤均叶海辉张学强郑雪虹
Owner ANALYSIS & TESTING CENT CHINESE ACADEMY OF TROPICAL AGRI SCI
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