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Calcium magnesium phosphor potassium fertilizer particle balling preparation technique

A calcium-magnesium-phosphorus-potassium fertilizer and granule technology, applied in the direction of fertilizer forms, fertilization devices, and fertilizer mixtures, can solve the problems of fertilizer loss, environmental pollution, and damage to human health, and achieve improved utilization, reasonable production technology, and advanced equipment. Effect

Inactive Publication Date: 2012-02-22
LANZHOU UNIVERSITY
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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 production technology of calcium magnesium phosphorus potassium fertilizer granules, which solves the problems that powder calcium magnesium phosphorus potassium fertilizer is easy to cause fertilizer loss, pollute the environment and damage human health during the application process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The steps of producing calcium magnesium phosphorus potassium fertilizer granules are as follows:

[0026] Step 1: Take 750kg of calcium magnesium phosphorus and potassium fertilizer, 100kg of superphosphate, 30kg of organic nitrogen, phosphorus and potassium multi-element compound fertilizer, and 20kg of heavy superphosphate, then dry and pulverize the mixture, and then sieve to obtain a mixture of 80 to 100 meshes Powder, store for later use.

[0027] Second step: pulverize weathered coal with humic acid content greater than 35% to a certain extent, add ammonium hydroxide for ammoniation treatment, the weight ratio of weathered coal to ammonium hydroxide is 5:1, then dry, pulverize, and Sieve to obtain 80-100 mesh mixture powder containing ammonium humate, and store it for later use.

[0028] The third step: put the mixture powder obtained in the first step and the mixture powder obtained in the second step containing 100kg of ammonium humate into the mixing tank, an...

Embodiment 2

[0032] Get the weathered coal whose weight is calcium magnesium phosphorus potassium fertilizer 750kg, superphosphate 65kg, organic nitrogen, phosphorus and potassium multi-element compound fertilizer 50kg, heavy superphosphate 30kg, humic acid content greater than 35%, production procedure is as embodiment 1.

Embodiment 3

[0034] Get the weathered coal whose weight is calcium magnesium phosphorus potassium fertilizer 770kg, superphosphate 50kg, organic nitrogen, phosphorus and potassium multi-element compound fertilizer 50kg, heavy superphosphate 30kg, and humic acid content greater than 35%, and production procedure is as embodiment 1.

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Abstract

The invention relates to a production technology of particle granulation of a calcium magnesium potassium phosphate fertilizer. The prior powdery calcium magnesium potassium phosphate fertilizer has the disadvantages in application such as fertilizer loss, environment pollution, damage to human health, etc. The technical proposal for solving the problems includes preparing the powdery calcium magnesium potassium phosphate fertilizer into calcium magnesium potassium phosphate fertilizer particles which are prepared from 10 weight parts of calcium magnesium potassium phosphate fertilizer, 0.6-1.4 weight parts of calcium superphosphate, 0.4-0.7 weight parts of organic nitrogen phosphorus potassium multi-element compound fertilizer, 1.2-1.4 weight parts of ammonium humate, and 0.1% polyvinyl alcohol aqueous solution 1-10% of total weight of the four raw materials. The production technology solves the problem of particle granulation, increases efficiency of the calcium magnesium potassium phosphate fertilizer, improves soil, and increases utilization ratio of the calcium magnesium potassium phosphate fertilizer; and has reasonable production process, and advanced production technology and equipment. The obtained calcium magnesium potassium phosphate fertilizer particles have stable quality, stable price, and good economic benefit.

Description

technical field [0001] The invention relates to the field of fertilizers, in particular to a production technology of granular compound fertilizers. Background technique [0002] Calcium Magnesium Phosphorus Potassium Fertilizer is a kind of aluminosilicate glass body containing phosphate radicals. It has no clear molecular formula, molecular weight and melting point. The nature of deterioration due to changes in natural conditions, especially its non-hygroscopic and non-caking properties, makes it impossible to make calcium, magnesium, phosphorus, and potassium fertilizers into granules by traditional methods. However, the fineness of powdered calcium magnesium phosphorus potassium fertilizer reaches 80-100 mesh, and the phenomenon of dust flying is very serious during the application process, which causes a large loss of fertilizer and pollutes the surrounding area. The environment, and more importantly, affects human health. Therefore, the research on the pelletizing tec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G5/00C05G1/00
Inventor 石辉文王福善
Owner LANZHOU UNIVERSITY
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