CN1221495C - Method of producing high nitrogen multi colour composite fertilizer by fluid spray granulation - Google Patents
Method of producing high nitrogen multi colour composite fertilizer by fluid spray granulation Download PDFInfo
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- CN1221495C CN1221495C CN 200410023429 CN200410023429A CN1221495C CN 1221495 C CN1221495 C CN 1221495C CN 200410023429 CN200410023429 CN 200410023429 CN 200410023429 A CN200410023429 A CN 200410023429A CN 1221495 C CN1221495 C CN 1221495C
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- composite fertilizer
- painted
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- urea
- high nitrogen
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Abstract
The present invention discloses a method for producing a multicolor high-nitrogen compound fertilizer by slurry spraying granulation. After the drying working section of a compound fertilizer produced by a slurry spraying granulation technology, large-granule urea of 2 to 4 millimeters is added with a surface active agent of 12-sodium alkyl benzene sulfonate of 0.01 to 0.08 kilogram/ton and trace elements of 0.2 to 0.9 kilogram/ton for colouring, the urea and the compound fertilizer are uniformly mixed in the weight proportion of 0.1 to 1:1 to 10, and then a multicolor high-nitrogen compound fertilizer is obtained by wrapping processing. The method of the present invention can be used for producing a coloured high-nitrogen and colouring counterfeiting-prevention product, nutrients can be regulated within 40 to 46%, the nitrogen content of the product is increased by 5 to 10 percentage points than the existing compound fertilizer product, and the compound fertilizer has all the advantages of an original sulfur-based compound fertilizer and simultaneously has the characteristics of replacing the quick acting of additional fertilization, etc.
Description
Technical field
The present invention relates to the method for the manufacturing of composite fertilizer, is the method that a kind of spray granulating is produced the colorful composite fertilizer of high nitrogen.
Background technology
Adopt the output of spray granulating explained hereafter S-NPK composite fertilizer to account for 48% of domestic high-concentration compound fertilizer, because the deficiency that existing manufacturing technique exists makes the product nutrient density comparatively single and nutrients ratio is difficult regulates, can only produce the S-NPK ratio and be the broad spectrum type complex fertilizer product about 13-18-14.Because the type product nitrogen content is difficult for improving, only be applicable to that basically field crop and cash crop make base fertilizer and use, the use that is not suitable for topdressing has big gap with the market requirement.Simultaneously,,, make composite fertilizer not have false proof measure, bring big difficulty to the user so can not use because disclosed painted composite fertilizer coloring effect is not good enough.
Summary of the invention
The objective of the invention is, provide a kind of spray granulating to produce the method for the colorful composite fertilizer of high nitrogen, adopt method of the present invention can produce colored high nitrogen, painted anti-fake product, nutrient can be regulated at 40-46%, nitrogen content exceeds 5-10 percentage point than existing complex fertilizer product, it has all advantages of former S-based compound fertilizer, has alternative quick-acting characteristics of topdressing etc. simultaneously.
The present invention is in order to finish goal of the invention, following technical scheme is provided: spray granulating is produced the method for the colorful composite fertilizer of high nitrogen, after the dry workshop section of the composite fertilizer of spray granulating explained hereafter, the granular urea of 2-4 millimeter is added 0.01-0.08 kilogram/ton Sodium dodecylbenzene sulfonate class tensio-active agent and 0.2-0.9 kilogram/ton trace element, after painted, in urea and composite fertilizer 0.1-1: the ratio uniform mixing of 1-10 weight ratio, after parcel is handled the colorful composite fertilizer of high nitrogen.Described urea is painted be in the composite fertilizer that produces in and add acid pigment in the slip of workshop section, the slip ratio after the add-on of pigment and the neutralization is 0.0002-0.0004: 1 weight ratio.Described urea is painted to be painted with adding the dissolving of tensio-active agent and neutral dye in the diluted acid earlier, again painted dilute phosphoric acid is sprayed on the granular urea surface, be sprayed at the wetting granular urea surface of dilute phosphoric acid with the MgO pulvis that contains about 40% then, make by magnesium oxide and dilute phosphoric acid reaction generate contain that porous inorganic shell film wraps up chromaturia.The painted diluted acid of urea is sulfuric acid, phosphoric acid, nitrose.Neutral dye is neutral bright green, neutral yellow, toluylene red.The trace element pulvis is magnesium oxide, borax, ferrous sulfate, zinc sulfate.Composite fertilizer is painted be in technology and the slip of workshop section in add acid pigment, as acid light yellow, acid scarlet, acid pale red, acid blue, slip ratio after the add-on of pigment and the neutralization is 0.0002-0.0004: 1 weight ratio forms composite fertilizer in spray gun sprays into granulating and drying machine.The hybird environment temperature that urea is painted and composite fertilizer is painted is 65-85 ℃, with the moisture in the dry urea.
The present invention makes particle appearance beautiful again when reaching false proof, urea and composite fertilizer can different colours, composite fertilizer one or two or more kinds distinct colors, again with the urea uniform mixing of painted different colours.
The colorful composite fertilizer of the high ammonia total nutrient that adopts the present invention to produce can be regulated between 40-46%, its nitrogen content is than the general high 5-10 of S-NPATJT complex fertilizer product percentage point of common process production, it possesses all advantages of S-based compound fertilizer, also have the quick-acting characteristics of topdressing that substitute, can be applicable to field crop, more be applicable to the growth needs of various cash crop, be applicable to that crop is topdressed, range of product can be regulated arbitrarily, market adaptability is strong; Fast with urea effect melting speed, can do quick-acting fertilizer, the use of topdressing; The painted back of product anti-fake effect is obvious; Can transformation on the S-NPA of routine composite fertilizer production basis, reduced investment, remarkable in economical benefits.
The present invention gets the colorful composite fertilizer of high nitrogen and has all size after parcel is handled, for example: 26-10-10,24-12-10,20-12-12,20-14-11,22-13-10,18-15-12,24-12-19 etc.
Embodiment:
Embodiment 1:
1, composite fertilizer is painted
Add acid light yellow in by composite fertilizer's (the proportioning ratio is 15-15-15) of spray granulating explained hereafter and in No. 1 slip of workshop section, add acid scarlet in No. 2 slips, the slip ratio after the add-on of pigment and the neutralization is 0.0002-0.0004: 1 weight ratio.Slip is produced the composite fertilizer of two kinds of colors earlier in spray gun sprays into granulating and drying machine.
2, urea is painted
Dissolve painted with the neutral bright green dye of 0.4kg/t the Sodium dodecylbenzene sulfonate tensio-active agent that adds 0.05kg/t in the dilute phosphoric acid that concentration is 20%, consumption is 20kg/t.Painted dilute phosphoric acid is sprayed on the granular urea surface, is sprayed at the wetting granular urea surface of dilute phosphoric acid with the MgO pulvis that contains about 40% then, make by magnesium oxide and dilute phosphoric acid reaction generate contain that porous inorganic shell film wraps up chromaturia.
3, produce the colorful composite fertilizer of high nitrogen
Green urea after painted joins in composite fertilizer's mixing machine that two kinds of colors are arranged of having produced after the metering of belt weighing balance, makes green, red, yellow three looks high nitrogen colour composite fertilizer at uniform mixing under 80 ℃ the temperature after parcel is handled.The quantity of goods produced of urea and composite fertilizer and product are:
| Sequence number | Urea add-on (kilogram) | Composite fertilizer's add-on (kilogram) | The nutrient % of nitrogen, phosphorus, potassium in the colorful composite fertilizer of high nitrogen | Product moisture % | Yield rate % |
| 1 | 550 | 1000 | 26-10-10 | 1.0 | 100 |
| 2 | 190 | 1000 | 20-12-12 | 0.8 | 100 |
| 3 | 410 | 1000 | 24-11-12 | 1.1 | 100 |
| 4 | 100 | 1000 | 18-14-13 | 1.0 | 100 |
Embodiment 2
1, composite fertilizer is painted
Add acid blue in by composite fertilizer's (the proportioning ratio is 13: 18: 14) of spray granulating explained hereafter and in No. 1 slip of workshop section, add acid scarlet in No. 2 slips, the slip ratio after the add-on of pigment and the neutralization is 0.0002-0.0004: 1 weight ratio.Slip sprays into through spray gun and makes the composite fertilizer that produces two kinds of colors in the material dryer earlier.
2, urea is painted
Dissolve painted with 0.4Kg/t neutral yellow dyestuff the Sodium dodecylbenzene sulfonate tensio-active agent that adds 0.02Kg/t in the dilute sulphuric acid that concentration is 6%, consumption is 16Kg/t.Painted dilute sulphuric acid is sprayed on the granular urea surface, is sprayed at the wetting granular urea surface of dilute phosphoric acid with the MgO pulvis that contains about 40% then, make by magnesium oxide and dilute sulphuric acid reaction generate contain that porous inorganic shell film wraps up chromaturia.
3, produce the colorful composite fertilizer of high nitrogen
Green urea after painted joins in composite fertilizer's mixing machine that two kinds of colors are arranged of having produced after the metering of belt weighing balance, makes indigo plant, red, yellow three looks high nitrogen colour composite fertilizer at uniform mixing under 80 ℃ the temperature after parcel is handled.The quantity of goods produced of urea and composite fertilizer and product are:
| Sequence number | Urea add-on (kilogram) | Composite fertilizer's add-on (kilogram) | The nutrient % of nitrogen, phosphorus, potassium in the colorful composite fertilizer of high nitrogen | Product moisture % | Yield rate % |
| 1 | 178 | 1000 | 18-15-12 | 0.8 | 100 |
| 2 | 270 | 1000 | 20-14-11 | 1.0 | 100 |
| 3 | 375 | 1000 | 22-13-10 | 1.1 | 100 |
| 4 | 500 | 1000 | 24-12-9 | 1.1 | 100 |
Claims (4)
1, spray granulating is produced the method for the colorful composite fertilizer of high nitrogen, it is characterized in that: after the dry workshop section of the composite fertilizer of spray granulating explained hereafter, the granular urea of 2-4 millimeter is added 0.01-0.08 kilogram/ton Sodium dodecylbenzene sulfonate tensio-active agent and 0.2-0.9 kilogram/ton magnesium oxide pulvis, after painted, in urea and composite fertilizer 0.1-1: the ratio uniform mixing of 1-10 weight ratio, after parcel is handled the colorful composite fertilizer of high nitrogen.
2, spray granulating according to claim 1 is produced the method for the colorful composite fertilizer of high nitrogen, it is characterized in that: described urea is painted be in the composite fertilizer that produces in and add acid pigment in the slip of workshop section, the slip ratio after the add-on of pigment and the neutralization is 0.0002-0.0004: 1 weight ratio.
3, spray granulating according to claim 1 is produced the method for the colorful composite fertilizer of high nitrogen, it is characterized in that: described urea is painted to be painted with adding the dissolving of tensio-active agent and neutral dye in dilute phosphoric acid or the dilute sulphuric acid earlier, again painted dilute phosphoric acid is sprayed on the granular urea surface, be sprayed at the wetting granular urea surface of dilute phosphoric acid with the MgO pulvis that contains about 40% then, make by magnesium oxide and dilute phosphoric acid reaction generate contain that porous inorganic shell film wraps up chromaturia.
4, spray granulating according to claim 1 is produced the method for the colorful composite fertilizer of high nitrogen, it is characterized in that: composite fertilizer is painted be in technology and the slip of workshop section in add acid pigment, acid light yellow, acid scarlet, acid pale red or acid blue, slip ratio after the add-on of pigment and the neutralization is 0.0002-0.0004: 1 weight ratio forms composite fertilizer in spray gun sprays into granulating and drying machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410023429 CN1221495C (en) | 2004-01-12 | 2004-01-12 | Method of producing high nitrogen multi colour composite fertilizer by fluid spray granulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410023429 CN1221495C (en) | 2004-01-12 | 2004-01-12 | Method of producing high nitrogen multi colour composite fertilizer by fluid spray granulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1556077A CN1556077A (en) | 2004-12-22 |
| CN1221495C true CN1221495C (en) | 2005-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410023429 Expired - Fee Related CN1221495C (en) | 2004-01-12 | 2004-01-12 | Method of producing high nitrogen multi colour composite fertilizer by fluid spray granulation |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108358680A (en) * | 2018-01-19 | 2018-08-03 | 湖北富邦科技股份有限公司 | The micro- anti-dusting type phosphate fertilizer coating method of moisture-proof anti-caking in a kind of addition |
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- 2004-01-12 CN CN 200410023429 patent/CN1221495C/en not_active Expired - Fee Related
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| CN1556077A (en) | 2004-12-22 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051005 Termination date: 20140112 |