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Novel chemical fertilizer and preparation method thereof

A chemical fertilizer and a new type of technology, applied in the field of new chemical fertilizers and their preparation, can solve the problems of large addition amount, poor business conditions, and soil compaction, and achieve the effects of improving shelf life, increasing permeability, and reducing bulk density.

Inactive Publication Date: 2011-11-16
TIANJIN HAOCHANG INDAL XINGMA FERTILIZER PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, it is generally necessary to add additives to chemical fertilizers to adjust the concentration of chemical fertilizers and alleviate the problem of easy moisture absorption and caking. However, the current additives are chemically synthesized additives, and the anti-caking agents commonly used in the fertilizer industry are mostly phosphate and calcium salts. and other inorganic substances, they are added in a large amount (0.2-0.5%), but the effect is very insignificant. After three months, their looseness does not meet the national standard requirements. The land has become hardened and business conditions have deteriorated, which is not conducive to circular farming

Method used

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  • Novel chemical fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of novel chemical fertilizer, composition and parts by weight ratio are as follows:

[0031] meerschaum 80

[0032] (NH 4 ) 2 SO 4 20

[0033] The preparation method of above-mentioned chemical fertilizer, preparation route is as follows:

[0034] Raw material weighing - stirring - granulation - drying - hot sieving - cooling - sieving - packaging into finished products.

[0035] Specifically: sepiolite and (NH 4 ) 2 SO 4 Mix according to the proportion, then stir evenly, add water and use double sets of double disks to carry out rotary granulation, dry after granulation, carry out hot screening, cooling, and then carry out secondary screening, and then package to become a finished product. In the above hot sieving process, the large particles of fertilizer that have not been screened out can be directly recycled into the mixing tank for stirring and crushing, and then hot sieving and subsequent procedures are carried out. The large particles scree...

Embodiment 2

[0037] A kind of novel chemical fertilizer, composition and parts by weight ratio are as follows:

[0038] meerschaum 80

[0039] (NH 4 ) 2SO 4 15,

[0040] Chemical fertilizer and preparation method thereof, concrete steps are with embodiment 1.

Embodiment 3

[0042] A kind of novel chemical fertilizer, composition and parts by weight ratio are as follows:

[0043] meerschaum 80

[0044] NH 4 CL 20,

[0045] Chemical fertilizer and preparation method thereof, concrete steps are with embodiment 1.

[0046] The present invention can also be coated with color on the outside of the additive according to customer requirements, the pigment is a food-grade raw material, and the conventional immersion method can be used for the coating method.

[0047] The index of the sepiolite that this application uses is as follows:

[0048] Particle size: 2.00-4.00mm≥85%, 2.00-4.75mm≥90%;

[0049] Free acid: (as H 2 SO 4 Count) ≤ 0.8%;

[0050] Strength: (2.00-4.75mm)≥8;

[0051] Moisture: ≤2.0%;

[0052] Color: light white (light off-white).

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Abstract

The invention relates to a novel chemical fertilizer and a preparation method thereof. The novel chemical fertilizer comprises sea foam, (NH4)2SO4 or NH4Cl and can comprise a pigment. The chemical fertilizer provided by the invention can make active ingredients be released slowly and gradually, has a good embedding effect on volatile and freely soluble chemical nitrogen fertilizers, can be gradually released in the growing process of crops, and has the function of acting for a long time. The utilization ratio of the chemical fertilizer is increased.

Description

technical field [0001] The invention belongs to the field of chemical fertilizers, in particular to a novel chemical fertilizer and a preparation method thereof. Background technique [0002] It is an indisputable fact that chemical fertilizers, such as ammonium nitrate (hereinafter referred to as state), ammonium bicarbonate, and urea, are easy to absorb moisture and agglomerate. This is determined by the unique properties of the chemical fertilizer itself. Great trouble and inconvenience. [0003] The hygroscopic agglomeration of chemical fertilizers can be explained by the "salt bridge" theory. When the chemical fertilizer absorbs moisture, a layer of saturated solution film is formed on the surface. Under the action of surface tension, the saturated solution builds a "liquid bridge" between adjacent particles. . When the air temperature decreases or the humidity decreases, the dissolved fertilizer in the "liquid bridge" is partially or completely crystallized to form h...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G3/80
Inventor 何鹏浩
Owner TIANJIN HAOCHANG INDAL XINGMA FERTILIZER PLANT
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