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Method for producing granular compound fertilizer

A production method and compound fertilizer technology, applied in the form of fertilizer, fertilization device, fertilizer mixture, etc., can solve the problems of large water-insoluble matter, easy hardening, and inability to use drip irrigation equipment to fertilize, and achieve the effect of improving fertilizer utilization.

Inactive Publication Date: 2010-11-10
SHENZHEN BATIAN ECOTYPIC ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above problems, some compound fertilizers use disintegrating agents in the formulation system. Such compound fertilizers can disintegrate in water when applied, and can be poured. Uniform fat
[0004] In summary, the existing granular compound fertilizers or elemental fertilizer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0019] 15-15-15S production formula: urea 10.1%, ammonium sulfate 35.29%, industrial monoammonium phosphate 24.6%, potassium sulfate 30.0%, binder gelatin 0.01%.

[0020] The raw materials are granulated and processed into compound fertilizer.

[0021] After testing, the water-insoluble matter in this compound fertilizer is less than 0.2%. The user dissolves it in water and can be used for irrigation and fertilization, such as infiltration irrigation, drip irrigation, foliar fertilizer, and of course, it can also be used directly.

example 2

[0023] 16-16-16CL production formula: urea 13.6%, ammonium sulfate 31.6%, industrial monoammonium phosphate 22.1%, agricultural monoammonium phosphate 5%, potassium chloride 26.7%, binder sodium carboxymethyl cellulose 1%.

[0024] The raw materials are granulated and processed into compound fertilizer.

[0025] After testing, the water-insoluble matter in this compound fertilizer is less than 5%, and the user can dissolve it in water, and it can be used for irrigation and fertilization, or it can be used for spraying.

example 3

[0027] 15-5-20S production formula: ammonium nitrate 3.7%, ammonium sulfate 45.0%, potassium dihydrogen phosphate 19.6%, potassium nitrate 30.7%, binder epoxy resin 1%.

[0028] The raw materials are granulated and processed into compound fertilizer.

[0029] After testing, the water-insoluble matter in this compound fertilizer is less than 2%, and the user can dissolve it in water, and it can be used for irrigation and fertilization, or it can be used for broadcasting.

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PUM

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Abstract

The invention provides a method for producing granular compound fertilizer. The method comprises the following steps: 1) mixing raw materials to form a raw material system, wherein the raw materials comprise two or three out of nitrogen fertilizer, phosphate fertilizer and potassium fertilizer and binder, and the mass content of water-insoluble substances is lower than 5% in the mixed raw material system; and 2) granulating the raw material system into the granular compound fertilizer. Compared with the existing method for producing granular compound fertilizer, the invention can guarantee the granulating effect and ensure that the composite fertilizer is applicable in irrigation and fertilization by using the raw materials with low content of the water-insoluble substances and the binder. Therefore, the granular compound fertilizer is favorable for the integral water-fertilizer fertilization of leaf vegetables, greenhouse crops and cash crops and mechanical fertilization and improves the utilization rate of the fertilizer.

Description

Technical field [0001] The invention relates to a granular compound fertilizer, in particular to a method for producing a granular compound fertilizer that can be used for irrigation and fertilization. Background technique [0002] Various fertilizers are widely used in agricultural production, including compound fertilizers and elemental fertilizers. Because elemental fertilizers generally have single nutrients and poor fertilizer efficiency, granular compound fertilizers are mostly used. Existing compound fertilizers generally use two or more raw material fertilizers to be crushed, stirred, granulated, dried, cooled, sieved and other post-processes to make granular compound fertilizers. The raw materials are generally nitrogen fertilizers. , Ordinary calcium or agricultural monoammonium phosphate and other phosphate fertilizers, potash fertilizers and fillers or additives. It can be seen that the production formula has a wide range of raw materials and the production is simpl...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G5/00
Inventor 黄培钊王丰登黄德明
Owner SHENZHEN BATIAN ECOTYPIC ENG
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