CN102992817B - Method for producing microelement granular monoammonium phosphate - Google Patents
Method for producing microelement granular monoammonium phosphate Download PDFInfo
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- CN102992817B CN102992817B CN201210481689.5A CN201210481689A CN102992817B CN 102992817 B CN102992817 B CN 102992817B CN 201210481689 A CN201210481689 A CN 201210481689A CN 102992817 B CN102992817 B CN 102992817B
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Abstract
A method for producing microelement granular monoammonium phosphate comprises the following specific production steps of: preparing a microelement mixture according to a microelement addition formula; pre-reacting washing liquid with the microelement mixture in a dissolving tank, thereby obtaining mixed slurry; evenly mixing the mixed slurry with preneutralization slurry in a certain ratio in a preneutralization reaction tank; adding the mixcroelement mixture to a return system proportionally according to the addition quantity of the mixed slurry; by using a delivery pump, feeding the mixed solution into a pelletizer for spraying granulation, and simultaneously replenishing ammonia for secondary ammoniation; and then crashing, screening and drying the product obtained through granulation, thereby obtaining the microelement granular monoammonium phosphate with qualified granule size. The microelement granular monoammonium phosphate with qualified granule size is coated with an oil coating in a package barrel so that qualified products are obtained.
Description
Technical field
The present invention relates to a kind of production technical field of MAP, be specifically related to a kind of method of micro-particle MAP.
Background technology
Trace element is the important component part of enzyme, vitamin, hormone, participates in organic metabolic process directly, once lack, gently affects crop growthing development, causes the underproduction in poor harvest, heavy No kernels or seeds are gathered, as in a year of scarcity.The deficiency of plant content, by causing the deficiency of animal and human's body trace element, finally causes the generation of human diseases, forms vicious circle.Can as can be seen here, give whether sufficient, balance of property nutrient in soil, be related to crops give stable high yields irrespective of drought or water logging, more be related to the health of humans and animals in this circulation, the deficiency of a certain element all can cause the destruction of physiological function.Adding trace element by fertilizer mixture is a kind of important means to crop microelement-supplementing under existing situation.
Root according to data, there is the problem of microelement deficiencies in China's arable land major part, although in recent years constantly to microelement-supplementing in soil, but because high crop yield has been taken away a large amount of trace elements, the situation that Trace Elements in Soil lacks still exists, one ammonium is as a kind of quick-acting fertilizer of high concentration, can provide nitrogen, two kinds of important nutritional labelings of phosphorus to crops, use wide, in an ammonium, have for interpolation trace element can improve output and can effectively strengthen the resistance of crop to disease and pest, low temperature, high temperature and arid simultaneously.
MAP is a kind of quick-acting fertilizer of high concentration, can provide nitrogen, two kinds of important nutritional labelings of phosphorus to crops, be applicable to various crops and soil, particle MAP can directly be applied to soil, in order to reduce fertilising cost, have simultaneously for microelement-supplementing, now work out a kind of production method of micro-particle MAP, the method can, according to surveying native data, reasonably be added various trace elements, supplements when macronutrient microelement-supplementing targetedly.
Summary of the invention
For the deficiencies in the prior art, object of the present invention is exactly that technique, equipment that a kind of employing will be provided are simple, the production method of the micro-particle MAP of convenient operation.
The object of the present invention is achieved like this: a kind of production method of micro-particle MAP, comprises the following steps:
Step 1): add formula according to trace element, configure micro-compound;
Step 2): in dissolving tank, carry out pre-reaction with cleaning solution and micro-compound, make mixed slurry;
Step 3): in preneutralization reactive tank, mixed slurry is evenly mixed according to a certain percentage with preneutralization slip; On in revert system, add according to a certain percentage micro-compound according to mixed slurry addition;
Step 4): mixed liquor is squeezed into comminutor with delivery pump and carry out slurry-spraying pelletizing, supplement ammonia simultaneously and carry out secondary ammoniation;
Step 5): after granulation after product through broken, screening, obtain the micro-particle MAP that particle diameter is qualified after dry;
Step 6): the micro-particle MAP that particle diameter is qualified wraps up oil coating in parcel cylinder, produces qualified product.
Described micro-kind is zinc, iron, copper, manganese, boron, cobalt, selenium.
Described trace element materials kind is one or more in zinc sulfate or zinc oxide, ferrous sulfate or ferrous oxide, copper sulphate or cupric oxide, manganese sulfate, boron oxide, cobalt oxide, selenium oxide.
In described micro-compound, each component ratio is determined according to material powder composition, soil function test result.
Described mixed slurry and preneutralization slip proportion are at volume ratio 1:20 between 1:5, and in return conveyer machine addition and mixed slurry, the ratio of micro-addition is between mass ratio 0.2 ~ 2:1.
Described revert system adds micro-interpolation point for the one in drying machine outlet conveyer, return conveyer conveyer.
In described production process, trace element is added to main line, wet line adds in proportion simultaneously.
In above-mentioned microelement product, micro-total amount is between 0.5% ~ 5%.
Described cleaning solution is the liquid producing after phosphorus ammonium washing dusty gas.
The present invention can make soil microelement-supplementing not apply fertilizer separately at needs, and the present invention can need to improve trace element amount in MAP according to actual soil, by adjusting main line adding proportion, not limited by slip feeding quantity.
Detailed description of the invention
Embodiment 1: a kind of production method of micro-particle MAP,
Step 1): add formula according to trace element, according to boron: zinc: iron=0.3:1:1 configures micro-compound;
Step 2): in dissolving tank, carry out pre-reaction with cleaning solution and micro-compound, make containing zinc 10% mixed slurry;
Step 3): in preneutralization reactive tank, mixed slurry is evenly mixed according to 1:20 ratio with preneutralization slip; On in revert system, add micro-compound according to wet line trace element addition according to 1:1;
Step 4): mixed liquor is squeezed into comminutor with delivery pump and carry out slurry-spraying pelletizing, supplement ammonia simultaneously and carry out secondary ammoniation;
Step 5): after granulation after product through broken, screening, obtain the micro-particle MAP that particle diameter is qualified after dry;
Step 6): the micro-particle MAP that particle diameter is qualified wraps up oil coating in parcel cylinder, produces containing micronutrient boron 0.3% zinc 1%, the particle MAP of iron 1%.
Embodiment 2: a kind of production method of micro-particle MAP,
Step 1): add formula according to trace element, according to boron: zinc: copper: iron=0.1:1:0.5:1 configures micro-compound;
Step 2): in dissolving tank, carry out pre-reaction with cleaning solution and micro-compound, make containing zinc 5% mixed slurry;
Step 3): in preneutralization reactive tank, mixed slurry is evenly mixed according to 1:10 ratio with preneutralization slip; On in revert system, add micro-compound according to wet line trace element addition according to 1:1;
Step 4): mixed liquor is squeezed into comminutor with delivery pump and carry out slurry-spraying pelletizing, supplement ammonia simultaneously and carry out secondary ammoniation;
Step 5): after granulation after product through broken, screening, obtain the micro-particle MAP that particle diameter is qualified after dry;
Step 6): the micro-particle MAP that particle diameter is qualified wraps up oil coating in parcel cylinder, produces containing micronutrient boron 0.1% zinc 1%, copper 0.5%, the particle MAP of iron 1%.
Embodiment 3: a kind of production method of micro-particle MAP,
Step 1): add formula according to trace element, according to boron: zinc: copper: iron: manganese=0.2:1:0.5:1:0.2 configures micro-compound;
Step 2): in dissolving tank, carry out pre-reaction with cleaning solution and micro-compound, make containing zinc 3% mixed slurry;
Step 3): in preneutralization reactive tank, mixed slurry is evenly mixed according to 1:5 ratio with preneutralization slip; On in revert system, add micro-compound according to wet line trace element addition according to 1:1.5;
Step 4): mixed liquor is squeezed into comminutor with delivery pump and carry out slurry-spraying pelletizing, supplement ammonia simultaneously and carry out secondary ammoniation;
Step 5): after granulation after product through broken, screening, obtain the micro-particle MAP that particle diameter is qualified after dry;
Step 6): the micro-particle MAP that particle diameter is qualified wraps up oil coating in parcel cylinder, produces containing micro-about boron 0.3% zinc 1.5%, copper 0.75%, iron 1.5%, the particle MAP of manganese 0.3%.
Cleaning solution in above-described embodiment is the liquid producing after phosphorus ammonium washing dusty gas.
Claims (3)
1. a production method for micro-particle MAP, is characterized in that: comprise the following steps:
Step 1): add formula according to trace element, configure micro-compound;
Step 2): in dissolving tank, carry out pre-reaction with cleaning solution and micro-compound, make mixed slurry; Described cleaning solution is the liquid producing after phosphorus ammonium washing dusty gas;
Step 3): in preneutralization reactive tank, mixed slurry is evenly mixed to the ratio of 1:5 according to volume ratio 1:20 with preneutralization slip; In revert system, add micro-compound according to mixed slurry addition according to mass ratio 0.2 ~ 2:1;
Step 4): mixed liquor is squeezed into comminutor with delivery pump and carry out slurry-spraying pelletizing, supplement ammonia simultaneously and carry out secondary ammoniation;
Step 5): after granulation after product through broken, screening, obtain containing micro-particle MAP after dry;
Step 6): what step 5) obtained contain, and micro-particle MAP wraps up oil coating in parcel cylinder, produces qualified product.
2. the production method of micro-particle MAP according to claim 1, is characterized in that: described micro-kind is zinc, iron, copper, manganese, boron, cobalt, selenium.
3. the production method of micro-particle MAP according to claim 1, is characterized in that: step 2) trace element materials reacts with cleaning solution generation predecomposition, the mixed slurry of system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210481689.5A CN102992817B (en) | 2012-11-24 | 2012-11-24 | Method for producing microelement granular monoammonium phosphate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210481689.5A CN102992817B (en) | 2012-11-24 | 2012-11-24 | Method for producing microelement granular monoammonium phosphate |
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| CN102992817A CN102992817A (en) | 2013-03-27 |
| CN102992817B true CN102992817B (en) | 2014-09-03 |
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| CN110723999B (en) * | 2019-11-20 | 2024-04-23 | 瓮福（集团）有限责任公司 | Equipment and method suitable for improving water solubility of trace elements in trace element ammonium phosphate product |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1442358A (en) * | 2002-03-06 | 2003-09-17 | 成都川大精细化工研究所 | Coproduction method of diammonium phosphate and monoammonium phosphate and equipment for neutralizing washing liquid |
| CN1651354A (en) * | 2004-02-06 | 2005-08-10 | 河北天人化工股份有限公司 | Preparation method of nitrogen phosphorus or nitrogen phosphorus potassium composite fertilizer |
| CN202427297U (en) * | 2011-12-22 | 2012-09-12 | 贵州开磷（集团）有限责任公司 | Dust collector device for monoammonium phosphate (MAP) production |
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- 2012-11-24 CN CN201210481689.5A patent/CN102992817B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1442358A (en) * | 2002-03-06 | 2003-09-17 | 成都川大精细化工研究所 | Coproduction method of diammonium phosphate and monoammonium phosphate and equipment for neutralizing washing liquid |
| CN1651354A (en) * | 2004-02-06 | 2005-08-10 | 河北天人化工股份有限公司 | Preparation method of nitrogen phosphorus or nitrogen phosphorus potassium composite fertilizer |
| CN202427297U (en) * | 2011-12-22 | 2012-09-12 | 贵州开磷（集团）有限责任公司 | Dust collector device for monoammonium phosphate (MAP) production |
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