Manufacturing method of puffed particle compound fertilizer and product thereof

A technology of extruded granules and compound fertilizers, which is applied in fertilizer forms, fertilizer mixtures, fertilization devices, etc., can solve the problems of large investment in high-tower production devices, unstable product biuret, consumption of steam, etc. Absorption, good effect of operating environment

Active Publication Date: 2011-03-30
SHENZHEN BATIAN ECOTYPIC ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the high-tower granulation compound fertilizer technology has been further improved compared with the original traditional technology, and the energy consumption has decreased to a certain extent, the product biuret is still in an unstable state, and a certain amount of steam needs to be consumed at the same time. The most important thing is that the high-tower production equipment has a large investment, and the investment of a production equipment with an annual output of 200,000 tons is about 60 million yuan.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Take 20kg of urea, 20kg of monoammonium phosphate, 15kg of potassium chloride, and 40kg of clay, add them to the mixer and mix them evenly, then add them to the extruder. The granular material is dried by a drum dryer, cooled by a drum cooler, and then sieved by a vibrating screen. After packaging, it is a compound puffed particle containing 11.20% nitrogen, 10.00% phosphorus, 9.20% potassium, and 30.40% total nutrients. fertilizer.

Embodiment 2

[0044] Get 25kg of urea, 5kg of ammonium bicarbonate, 10kg of monoammonium phosphate, 15kg of potassium chloride, 2.0kg of magnesium sulfate, 0.05kg of ferrous sulfate, 0.02kg of zinc sulfate, 0.03kg of boric acid, 0.01kg of acid blue pigment, and 42.89kg of concave-convex powder, Add it to the mixer and mix it evenly, then add it to the extruder, and expand the mixture into 4-6mm spherical particles at an expansion temperature of 60°C. The expanded particle material is dried by a vibrating fluidized bed dryer, and then cooled by a fluidized bed machine. After screening by vibrating sieve, after packaging, it will be a blue expanded granular compound fertilizer containing 13.35% nitrogen, 5.00% phosphorus, 9.00% potassium, and 42.15% total nutrients.

Embodiment 3

[0046] Take 26kg of urea, 5kg of ammonium chloride, 10kg of ammonium sulfate, 12kg of monoammonium phosphate, 10kg of potassium chloride, 0.1kg of urease inhibitor, 0.1kg of nitrification inhibitor, 0.01kg of acid red, and 36.79kg of zeolite powder, and add them to the mixer for mixing After homogenization, add it to the extruder, under the condition of puffing temperature 70°C, puff the mixture into 4~6mm spherical granules, dry it with an infrared dryer, cool it with a vibrating fluidized bed machine, and then sieve it with a vibrating sieve After packaging, it is a red expanded granule compound fertilizer containing 16.51% nitrogen, 6.00% phosphorus, 6.00% potassium, and 28.51% total nutrients containing slow-release agents.

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Abstract

The invention discloses a manufacturing method of a puffed particle compound fertilizer, which comprises the following steps of: uniformly mixing nitrogenous fertilizer, phosphate fertilizer, potassic fertilizer, stuff and other raw materials used in production of the compound fertilizer into a mixer according to a certain proportion to prepare a compound fertilizer mixture; and manufacturing the puffed particle compound fertilizer through the procedures of puffed granulation, drying, cooling, screening and the like. The invention belongs to a novel manufacturing process of the novel compound fertilizer.

Description

technical field [0001] The invention relates to an agricultural compound fertilizer, in particular to a manufacturing method of a novel expanded granular compound fertilizer. Background technique [0002] Various fertilizers are widely used in agricultural production, mainly elemental chemical fertilizers and multi-component compound fertilizers containing nitrogen, phosphorus, potassium and other nutrients. Among them, the production methods of compound fertilizers mainly include aggregate method, slurry method, Counter-roll extrusion method, blending method, high tower granulation method, etc. They are compound fertilizers containing nitrogen, phosphorus, potassium and other nutrients by secondary processing of urea, ammonium nitrate, ammonium phosphate, heavy calcium, potassium chloride, and potassium sulfate. [0003] In the existing production technology, the production technology of agglomerate method and slurry method is mainly to agglomerate the materials in the equ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G5/00C05G1/00
Inventor 张运森
Owner SHENZHEN BATIAN ECOTYPIC ENG
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