Macroelement water-soluble fertilizer containing polymorphic nitrogen and preparing method of macroelement water-soluble fertilizer

A technology of a large number of elements and polymorphic nitrogen, which is applied in fertilizer mixtures, fertilization devices, applications, etc., can solve the problem that urea and nitrate nitrogen materials cannot be directly mixed, and achieve good effect of inhibiting fertilizer dissolution, capillary adsorption, and water solubility. , the effect of preventing soil compaction

Active Publication Date: 2015-12-09
唐山滦胜农业科技有限公司
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AI Technical Summary

Problems solved by technology

[0005] Another object of the present invention is to complete the ammonification of potassium nitrate, ammonium dihydrogen phosphate and potassium dihydrogen phosphate in the drying process by adding ammonia water, so as to solve the technical problem that urea and nitrate nitrogen materials cannot be directly mixed, and Prevent the production of urea phosphate from causing caking problems during product storage;

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  • Macroelement water-soluble fertilizer containing polymorphic nitrogen and preparing method of macroelement water-soluble fertilizer

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preparation example Construction

[0028] The preparation method of the described macroelement water-soluble fertilizer containing polymorphic nitrogen comprises the following steps:

[0029] (1) Urea pulverization: pulverize urea to 100-120 mesh;

[0030] (2) Material mixing: add the measured potassium nitrate, ammonium dihydrogen phosphate, potassium dihydrogen phosphate, magnesium nitrate, water-soluble polymer and urea from step (1) into the mixing mixer through the computer batching system, and at the same time After the ammonia water is gasified, it is passed into the material layer of the mixing mixer in proportion, and the uniform mixing time is 3 to 5 minutes;

[0031] (3) Drying ammonification: the mixed material enters the dryer, and the ammoniation treatment of potassium nitrate, ammonium dihydrogen phosphate, and potassium dihydrogen phosphate is completed at the drying temperature, and the outlet gas temperature of the dryer is controlled at 50°C-60°C , the drying time is 15-20min, and the moistu...

Embodiment 1

[0035] Embodiment 1: 14-20-25 high-potassium water-soluble fertilizer, taking 1 ton of product raw material consumption quota as example:

[0036] Raw material name: input amount (kg) nitrate nitrogen % ammonium nitrogen % amide nitrogen % P2O5 % K2O %

[0037] Urea 1296.0

[0038] Ammonia: 892.2

[0039] Potassium nitrate: 3504.916.1

[0040] Ammonium dihydrogen phosphate: 1101.36.7

[0041] Potassium dihydrogen phosphate: 26513.39.0

[0042] Magnesium nitrate: 17

[0043] Polyacrylamide: 20

[0044] Polyacrylate: 20

[0045] Total: 10004.93.56.020.025.1

[0046] According to computer measurement, 129 kg of urea (containing N46.2%, mass percentage, the same below) will be pulverized to 100-120 mesh, 350 kg of potassium nitrate (containing N14%, K2O46%), ammonium dihydrogen phosphate (containing N12%, P2O561%) 110 kg, potassium dihydrogen phosphate (containing P2O550%, K2O34%) 265 kg, magnesium nitrate 17 kg, polyacrylamide 20 kg, polyacrylic acid salt 20 kg into the m...

Embodiment 2

[0047] Embodiment 2: 20-30-10 high-phosphorus water-soluble fertilizer, taking 1 ton of product raw material consumption quota as example:

[0048] Raw material name: input amount (kg) nitrate nitrogen % ammonium nitrogen % amide nitrogen % P2O5 % K2O %

[0049] Urea 28513.2

[0050] Ammonia: 461.2

[0051] Potassium nitrate: 1031.44.7

[0052] Ammonium dihydrogen phosphate: 3654.422.3

[0053] Potassium dihydrogen phosphate: 1557.85.3

[0054] Magnesium nitrate: 10

[0055] Polyacrylamide: 20

[0056] Polyacrylate: 16

[0057] Total: 10001.45.613.230.110.0

[0058] After microcomputer measurement, crush 285 kg of urea (containing N46.2%, mass percentage, the same below) to 100 mesh-120 mesh, 103 kg of potassium nitrate (containing N14%, K2O46%), ammonium dihydrogen phosphate (containing N12%, P2O561%) 365 kg, potassium dihydrogen phosphate (containing P2O550%, K2O34%) 155 kg, magnesium nitrate 10 kg, polyacrylamide 20 kg, polyacrylic acid salt 16 kg were added to the ...

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Abstract

The invention discloses macroelement water-soluble fertilizer containing polymorphic nitrogen and a preparing method of the macroelement water-soluble fertilizer. The macroelement water-soluble fertilizer containing polymorphic nitrogen comprises, by mass, 12%-30% of urea, 4%-10% of ammonia water, 10%-35% of potassium nitrate, 10%-38% of ammonium dihydrogen phosphate, 15%-28% of monopotassium phosphate, 1%-2% of magnesium nitrate and 3%-5% of water-soluble polymerized substance. Due to the fact that the ammonia water is added, ammoniation of potassium nitrate, ammonium dihydrogen phosphate and monopotassium phosphate in the drying process is completed, the technological problem that the urea and a nitrate nitrogen material cannot be directly mixed is solved, and a product cannot be agglomerated by generated urea phosphate during storage. The final product contains nitrate nitrogen, ammonium nitrogen and amide nitrogen, the granular structure of soil is increased through the water-soluble polymerized substance, and the effects of preventing the soil from hardening and improving the soil are achieved.

Description

technical field [0001] The invention belongs to the technical field of chemical fertilizers, and in particular relates to a water-soluble fertilizer of a large number of elements containing polymorphic nitrogen and a preparation method thereof. The final product contains nitrate nitrogen, ammonium nitrogen and amide nitrogen. Background technique [0002] The nutrient release of traditional chemical fertilizers is too fast, and the effective utilization rate of fertilizers is low. Long-term large-scale application of chemical fertilizers not only increases crop production, but also brings great negative impacts on soil, crops and the environment. Studies have shown that conventional chemical fertilizers concentrate a large amount of nutrients and release them quickly in the early stage of application. Loss, or even reduce crop production due to burning seedlings; compared with traditional compound fertilizers, compound fertilizers, slow-release fertilizers and other fertili...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G3/80
Inventor 李云利郭超坤李聪
Owner 唐山滦胜农业科技有限公司
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