CN101880204A - Method for producing granular compound fertilizer - Google Patents
Method for producing granular compound fertilizer Download PDFInfo
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- CN101880204A CN101880204A CN 201010213709 CN201010213709A CN101880204A CN 101880204 A CN101880204 A CN 101880204A CN 201010213709 CN201010213709 CN 201010213709 CN 201010213709 A CN201010213709 A CN 201010213709A CN 101880204 A CN101880204 A CN 101880204A
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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
The present invention relates to a kind of granular compound fertilizer, especially a kind of production method that can be used for the granular compound fertilizer of fertigation.
Background technology
In agriculture production, be extensive use of various fertilizer, comprising compound manure and straight fertilizer.Because the general nutrient of straight fertilizer is single, fertilizer efficiency is not good, and what therefore use mostly is granular compound fertilizer.Existing compound manure generally is the raw material fertilizer with two or more, carry out post-processed such as fragmentation, stirring, granulation, drying, cooling, screening, thereby make granular composite fertilizer, raw materials for production generally adopt phosphate fertilizer, potash fertilizer and fillers such as nitrogenous fertilizer, general calcium or agricultural monoammonium phosphate or additive processing and manufacturing to form.As seen, its production formula raw material is extensive, produces simple.But because existing composite fertilizer needs the granulating that bonds in the processing granulation process, therefore generally all adopt an agricultural ammonium, general calcium in the production formula with the graininess of being bonded to energy, perhaps adding can the agglutinating filler, so that water insoluble matter content is very big, such composite fertilizer generally can only spread fertilizer over the fields, and is not suitable for the fertilising demand of some cash crop liquid manure one.
For addressing the above problem, the composite fertilizer that has adopts disintegrating agent in formula system, can meet the water disintegration when such composite fertilizer uses, and can water and execute, but because water-insoluble is also bigger, can not guarantee when the liquid manure one is used with evenly fertile.
In sum, existing granular compound fertilizer material or simple substance fertilizer generally can not be used for the drip irrigation equipment fertilising in use, are unfavorable for the popularization of mechanical fertilization.In addition, the production and sales of powdery multi-element fertilizer are arranged also on the market, but this series products hardens more easily, influence result of use.
In view of this, the necessary granular compound fertilizer that provides a kind of production method can address the above problem with production.
Summary of the invention
The objective of the invention is to: the production method that a kind of granular compound fertilizer of suitable fertigation is provided.
In order to solve the problems of the technologies described above, the invention provides a kind of production method of granular compound fertilizer, it may further comprise the steps: 1) raw material is mixed forming material system, described raw material comprises at least two kinds and binding agent in nitrogenous fertilizer, phosphate fertilizer, the potash fertilizer, in the composite material system mass content of water-insoluble less than 5%; 2) granular compound fertilizer is processed in the granulation of above-mentioned raw materials system.
Production method with respect to existing granular compound fertilizer, the present invention selects for use little raw material of water insoluble matter content and binding agent to come production composite fertilizer, resulting composite fertilizer water-insoluble ratio is little, can spread fertilizer over the fields, again can be water-soluble the back use as fertigation, can dash execute, water execute, be used for drip irrigation, infiltrating irrigation, as foliage fertilizer or the like, help the liquid manure one fertilising of leaf vegetables, booth, cash crop etc., help mechanical fertilization, improve utilization rate of fertilizer.Adding binding agent then can make this material system granulation easy.
A kind of improvement as the production method of granular compound fertilizer of the present invention, described phosphate fertilizer comprises 0～90% industrial monoammonium phosphate based on phosphorus nutrition, 0～90% diammonium phosphate, 0～90% ammonium polyphosphate, 0～90% potassium primary phosphate, and above-mentioned numerical range is meant that various raw materials account for the mass percent of material system.
A kind of improvement as the production method of granular compound fertilizer of the present invention, described phosphate fertilizer also comprises 0～5% coarse whiting, 0～5% general calcium, 0～5% fused(calcium magnesium)phosphate or 0～90% agricultural monoammonium phosphate, and above-mentioned numerical range is meant that various raw materials account for the mass percent of material system.The interpolation water-insoluble mainly is the interpolation of consideration fertilizer moderate-element and reduces cost greater than 1% raw material.
A kind of improvement as the production method of granular compound fertilizer of the present invention, described nitrogenous fertilizer comprises 0～90% urea, 0～90% ammonium sulfate, 0～90% ammonium chloride, 0～90% ammonium nitrate or based on 0～90% ammonium nitrate phosphorus of nitrogen nutrition or 0～90% nitric acid phosphorus, above-mentioned numerical range is meant that various raw materials account for the mass percent of material system.
As a kind of improvement of the production method of granular compound fertilizer of the present invention, described potash fertilizer comprises 0～90% Repone K, 0～90% vitriolate of tartar, 0～90% salt of wormwood or based on 0～90% saltpetre of potassium nutrition.
As a kind of improvement of the production method of granular compound fertilizer of the present invention, micronutrient element was fertile or/and other additive during described raw material also comprised.
A kind of improvement as the production method of granular compound fertilizer of the present invention, described binding agent is under 2% aqueous solution, 25 ℃ of situations, viscosity is greater than the binding agent or the thickening material of 100 centipoises, and its mass ratio that accounts for material system is 0.01%～5%, is preferably 0.2%～2%.Why limiting the binding agent consumption, is because too much binding agent can cause composite fertilizer water insoluble.Binding agent can be Xylo-Mucine, gelatin, Resins, epoxy, urea-formaldehyde resin etc.
As a kind of improvement of the production method of granular compound fertilizer of the present invention, the mass content of water-insoluble is less than 1%, preferably less than 0.2% in the described material system.This is to cause stifled fertilising service conduit because material system contains the too high meeting of water insoluble matter content, and can make unevenness of application.
In order to solve the problems of the technologies described above, the present invention also provides a kind of granular compound fertilizer, and comprising two or three nutrient substance in nitrogen, phosphorus, the potassium, and the mass content of water-insoluble is less than 5%.
Embodiment
Numerical value in following examples is meant mass percent.
Example 1:
15-15-15S production formula: urea 10.1%, ammonium sulfate 35.29%, industrial monoammonium phosphate 24.6%, vitriolate of tartar 30.0%, binding agent gelatin 0.01%.
Raw material becomes composite fertilizer through the granulation processing.
After tested, water-insoluble is less than 0.2% in this composite fertilizer, and the user is dissolved in the water it, can fertigation use, as is used for infiltrating irrigation, drip irrigation, foliage fertilizer use, can certainly directly spread fertilizer over the fields use.
Example 2:
16-16-16CL production formula: urea 13.6%, ammonium sulfate 31.6%, industrial monoammonium phosphate 22.1%, agricultural monoammonium phosphate 5%, Repone K 26.7%, binding agent Xylo-Mucine 1%.
Raw material becomes composite fertilizer through the granulation processing.
After tested, water-insoluble is less than 5% in this composite fertilizer, and the user is dissolved in the water it, can fertigation use, and also can spread fertilizer over the fields use.
Example 3:
15-5-20S production formula: ammonium nitrate 3.7%, ammonium sulfate 45.0%, potassium primary phosphate 19.6%, saltpetre 30.7%, epoxy resin of binder 1%.
Raw material becomes composite fertilizer through the granulation processing.
After tested, water-insoluble is less than 2% in this composite fertilizer, and the user is dissolved in the water it, can fertigation use, and also can spread fertilizer over the fields use.
Example 4:
20-8-15S production formula: urea 15.6%, ammonium sulfate 36.2%, potassium primary phosphate 19.6%, vitriolate of tartar 27.1%, binding agent urea-formaldehyde resin 1%, borax 0.5%.
Raw material becomes composite fertilizer through the granulation processing.
After tested, water-insoluble also has micronutrient boron less than 2% in this composite fertilizer, and the user is dissolved in the water it, can fertigation use, and also can spread fertilizer over the fields use.
Example 5:
20-0-15CL production formula: urea 21.2%, ammonium sulfate 48.8%, Repone K 25.0%, binding agent urea-formaldehyde resin 5%.
Raw material becomes composite fertilizer through the granulation processing.
After tested, water-insoluble is less than 5% in this composite fertilizer, and the user is dissolved in the water it, can fertigation use, and also can spread fertilizer over the fields use.
Example 6:
20-25-0CL production formula: urea 10.8%, ammonium sulfate 41.0%, industrial monoammonium phosphate 48.1%, binding agent urea-formaldehyde resin 0.1%.
Raw material becomes composite fertilizer through the granulation processing.
After tested, water-insoluble is less than 0.2% in this composite fertilizer, and the user is dissolved in the water it, can fertigation use, and also can spread fertilizer over the fields use.
Claims (10)
1. the production method of a granular compound fertilizer is characterized in that, may further comprise the steps:
1) raw material mix is formed material system, described raw material comprises at least two kinds and binding agent in nitrogenous fertilizer, phosphate fertilizer, the potash fertilizer, in the composite material system mass content of water-insoluble less than 5%;
2) granular compound fertilizer is processed in the granulation of above-mentioned raw materials system.
2. the production method of granular compound fertilizer according to claim 1, it is characterized in that: described phosphate fertilizer comprises 0～90% industrial monoammonium phosphate based on phosphorus nutrition, 0～90% diammonium phosphate, 0～90% ammonium polyphosphate, 0～90% potassium primary phosphate, and above-mentioned numerical range is meant that various raw materials account for the mass percent of material system.
3. the production method of granular compound fertilizer according to claim 2, it is characterized in that: described phosphate fertilizer also comprises 0～5% coarse whiting, 0～5% general calcium, 0～5% fused(calcium magnesium)phosphate or 0～90% agricultural monoammonium phosphate, and above-mentioned numerical range is meant that various raw materials account for the mass percent of material system.
4. the production method of granular compound fertilizer according to claim 1, it is characterized in that: described nitrogenous fertilizer comprises 0～90% urea, 0～90% ammonium sulfate, 0～90% ammonium chloride, 0～90% ammonium nitrate or based on 0～90% ammonium nitrate phosphorus of nitrogen nutrition or 0～90% nitric acid phosphorus, above-mentioned numerical range is meant that various raw materials account for the mass percent of material system.
5. the production method of granular compound fertilizer according to claim 1, it is characterized in that: described potash fertilizer comprises 0～90% Repone K, 0～90% vitriolate of tartar, 0～90% salt of wormwood or based on 0～90% saltpetre of potassium nutrition, above-mentioned numerical range is meant that various raw materials account for the mass percent of material system.
6. the production method of granular compound fertilizer according to claim 1 is characterized in that: micronutrient element was fertile or/and other additive during described raw material also comprised.
7. the production method of granular compound fertilizer according to claim 1, it is characterized in that: described binding agent is under 2% aqueous solution, 25 ℃ of situations, viscosity is greater than the binding agent or the thickening material of 100 centipoises, and its mass ratio that accounts for material system is 0.01%～5%, is preferably 0.2%～2%.
8. the production method of granular compound fertilizer according to claim 1, it is characterized in that: the mass content of water-insoluble is less than 1% in the described material system.
9. the production method of granular compound fertilizer according to claim 1, it is characterized in that: the mass content of water-insoluble is less than 0.2% in the described material system.
10. a granular compound fertilizer is characterized in that: comprise two or three nutrient substance in nitrogen, phosphorus, the potassium in the described composite fertilizer, and the mass content of water-insoluble is less than 5%.
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| CN 201010213709 CN101880204A (en) | 2010-06-29 | 2010-06-29 | Method for producing granular compound fertilizer |
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| CN 201010213709 CN101880204A (en) | 2010-06-29 | 2010-06-29 | Method for producing granular compound fertilizer |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515923A (en) * | 2011-12-28 | 2012-06-27 | 四川宏达股份有限公司 | Drip irrigation-grade ammonium phosphate sulfate composite fertilizer and preparation process thereof |
| CN102826889A (en) * | 2012-09-21 | 2012-12-19 | 史丹利化肥股份有限公司 | Polymorphic nitro-compound fertilizer and production method thereof |
| CN102826890A (en) * | 2012-09-21 | 2012-12-19 | 史丹利化肥股份有限公司 | Efficient polymorphous fertilizer special for vegetables and preparation method thereof |
| CN103539516A (en) * | 2013-09-22 | 2014-01-29 | 苏州市湘园特种精细化工有限公司 | Method for preparing slow-controlled release fertilizer |
| CN103664365A (en) * | 2013-12-03 | 2014-03-26 | 河南金地宝生态肥业有限公司 | Slow-release fertilizer and preparation method thereof |
| CN105753542A (en) * | 2016-04-27 | 2016-07-13 | 青海省专用肥料厂 | High and cold forage grass formula fertilizer and preparation method thereof |
| CN109942338A (en) * | 2019-04-29 | 2019-06-28 | 上海化工研究院有限公司 | One seed sand raw material pelleting paddy rice-dedicated fertilizer and its manufacturing method and application |
| EP3733817A1 (en) * | 2019-04-30 | 2020-11-04 | Schreiber GmbH | Boron-free treatment solution for a wick and boron-free wick |
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| CN1371891A (en) * | 2001-02-19 | 2002-10-02 | 邵建华 | Slow released compound fertilizer and productive method thereof |
| CN1597635A (en) * | 2004-08-04 | 2005-03-23 | 江北 | High concentration water solubled nitrogen phosphorus potassium multi element fertilizer |
| CN1962568A (en) * | 2005-11-10 | 2007-05-16 | 杨立刚 | Granulation additive of fertilizer and organic-inorganic mixed fertilizer adding same |
| CN101152989A (en) * | 2006-09-25 | 2008-04-02 | 包一兵 | Drought resisting accretion modifying agent for yellow humic acid plants |
| CN101475420A (en) * | 2009-01-23 | 2009-07-08 | 深圳市朗钛生物科技有限公司 | Fertilizer water-dispersion granule and preparation thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1371891A (en) * | 2001-02-19 | 2002-10-02 | 邵建华 | Slow released compound fertilizer and productive method thereof |
| CN1597635A (en) * | 2004-08-04 | 2005-03-23 | 江北 | High concentration water solubled nitrogen phosphorus potassium multi element fertilizer |
| CN1962568A (en) * | 2005-11-10 | 2007-05-16 | 杨立刚 | Granulation additive of fertilizer and organic-inorganic mixed fertilizer adding same |
| CN101152989A (en) * | 2006-09-25 | 2008-04-02 | 包一兵 | Drought resisting accretion modifying agent for yellow humic acid plants |
| CN101475420A (en) * | 2009-01-23 | 2009-07-08 | 深圳市朗钛生物科技有限公司 | Fertilizer water-dispersion granule and preparation thereof |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515923B (en) * | 2011-12-28 | 2013-09-25 | 四川宏达股份有限公司 | Drip irrigation-grade ammonium phosphate sulfate composite fertilizer and preparation process thereof |
| CN102515923A (en) * | 2011-12-28 | 2012-06-27 | 四川宏达股份有限公司 | Drip irrigation-grade ammonium phosphate sulfate composite fertilizer and preparation process thereof |
| CN102826889B (en) * | 2012-09-21 | 2014-04-09 | 史丹利化肥股份有限公司 | Polymorphic nitro-compound fertilizer and production method thereof |
| CN102826890A (en) * | 2012-09-21 | 2012-12-19 | 史丹利化肥股份有限公司 | Efficient polymorphous fertilizer special for vegetables and preparation method thereof |
| CN102826889A (en) * | 2012-09-21 | 2012-12-19 | 史丹利化肥股份有限公司 | Polymorphic nitro-compound fertilizer and production method thereof |
| CN102826890B (en) * | 2012-09-21 | 2014-07-02 | 史丹利化肥股份有限公司 | Efficient polymorphous fertilizer special for vegetables and preparation method thereof |
| CN103539516A (en) * | 2013-09-22 | 2014-01-29 | 苏州市湘园特种精细化工有限公司 | Method for preparing slow-controlled release fertilizer |
| CN103539516B (en) * | 2013-09-22 | 2015-05-20 | 苏州市湘园特种精细化工有限公司 | Method for preparing slow-controlled release fertilizer |
| CN103664365A (en) * | 2013-12-03 | 2014-03-26 | 河南金地宝生态肥业有限公司 | Slow-release fertilizer and preparation method thereof |
| CN105753542A (en) * | 2016-04-27 | 2016-07-13 | 青海省专用肥料厂 | High and cold forage grass formula fertilizer and preparation method thereof |
| CN109942338A (en) * | 2019-04-29 | 2019-06-28 | 上海化工研究院有限公司 | One seed sand raw material pelleting paddy rice-dedicated fertilizer and its manufacturing method and application |
| EP3733817A1 (en) * | 2019-04-30 | 2020-11-04 | Schreiber GmbH | Boron-free treatment solution for a wick and boron-free wick |
| WO2020221881A3 (en) * | 2019-04-30 | 2020-12-30 | Schreiber Gmbh | Boron-free impregnating solution for a wick and boron-free wick |
| CN113785037A (en) * | 2019-04-30 | 2021-12-10 | 施雷伯有限责任公司 | Boron-free dipping solution for candlewick and boron-free candlewick |
| US11912959B2 (en) | 2019-04-30 | 2024-02-27 | Schreiber Gmbh | Boron-free impregnating solution for a wick and boron-free wick |
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Application publication date: 20101110 |