CN101279866A - Preparation for sulfur coated intelligent film of large grained urea or particulate composite fertilizer - Google Patents
Preparation for sulfur coated intelligent film of large grained urea or particulate composite fertilizer Download PDFInfo
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- CN101279866A CN101279866A CNA2007101956648A CN200710195664A CN101279866A CN 101279866 A CN101279866 A CN 101279866A CN A2007101956648 A CNA2007101956648 A CN A2007101956648A CN 200710195664 A CN200710195664 A CN 200710195664A CN 101279866 A CN101279866 A CN 101279866A
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- fertilizer
- sulphur
- afterbirth
- kcl
- nacl
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Abstract
The invention relates to a sulfur secundine intelligent membrane with a large granule urea or a particle compound fertilizer and a method for the production thereof, which comprises the size reduction and sieving of NaCl or KCl, the particle size is 60-mesh, then the NaCl or KCl is added to a secundine membrane evenly by adopting a high pressure airflow spraying method to spray every five seconds according to the flow rate of a membrane fertilizer in the sulfur secundine process to form the sulfur secundine intelligent membrane. Using the method to prepare the large granule urea or particle compound fertilizer intelligent membrane can release nutrients of the large granule urea or particle compound fertilizer according to the preset time, and can also release medium microelements required by the crop growth while forming release perforations, so as to realize multiple purposes, and the method for the production has advantages of low equipment investment, huge benefit and effective controlling the resource loss and pollution of the prepared product, and belongs to a novel method for effectively utilizing resources.
Description
Technical field
The present invention relates to granular urea or granular compound fertilizer sulphur afterbirth intelligence membrane preparation method.
Background technology
At present, in crop planting, applied nitrogen or multi-elements composite fertilizer, nutrient time of releasing after fertilizer uses in soil and speed and plant are misfitted the demand Best Times of nutrient nutrition, in earlier stage discharge too fast as urea nitrogenous fertilizer, when treating that the plant growth later stage needs, nitrogen content in the soil can not satisfy the crop needs, cause fertilizer nutrient to run off, as nitrogen, elements such as phosphorus can enter the river after running off, (urea nitrogenous fertilizer crop absorption rate has only 30-40% in the lake,), not only cause financial loss, also can cause environmental pollution, discharge too fast problem in order to solve above-mentioned nutrition, traditional method is at fertilizer surface born of the same parents' sulphur film both sulphur afterbirth, as application number be: the multilayer sulphur afterbirth film of releasing in 200610037884.3 " composite sulfur enveloped slow release fertilizers " can make the fertilizer release period normal and reliable, but fertilizer by afterbirth after nutrient postpone time of releasing, can not satisfy demand in crop early stage to nutrition, the sulphur afterbirth intelligence film that now needs a kind of may command fertilizer nutrient release rate is to satisfy crop in the demand of different growth phases to nutrition.
At application number be: the integument raw material that 02126743.X " the slowly-releasing external parcel layer that is used for coated slow releasing fertilizer " releases is most of to be talcum powder and phosphogypsum, be not made in the thing process of growth required in micro-sulphur, chlorine, play the effect that the required nutrient of plant growth is provided comprehensively.Granular urea or granular compound fertilizer sulphur afterbirth intelligence membrane preparation method are to be added with particulate additive high temperature resistant and soluble in water in the film when the fertilizer after birth, the microparticle additive melts after sulphur after birth fertilizer enters soil, trace element in the release, form the fertilizer nutrient release aperture on sulphur afterbirth surface, many fertilizer nutrients of release aperture release rate is fast, otherwise it is slow, fertilizer nutrient is discharged according to people's requirement, satisfy the demand of the different growth phases of crop to nutrition, thereby reduce the loss of fertilizer nutrient, reduce the pollution of fertilising, reduce the fertilizer usage quantity environment, reduce fertilizer economy input, make the peasant obtain higher income.
Summary of the invention
The purpose of this invention is to provide granular urea or granular compound fertilizer sulphur afterbirth intelligence membrane preparation method.
For the purpose that realizes inventing, granular urea or granular compound fertilizer sulphur afterbirth intelligence membrane preparation method is provided, comprise the steps: successively
A, raw material are prepared: granular urea or granular compound fertilizer, sulphur, additive NaCL or KCL;
B, pulverizing: NaCL or KCL are crushed and screened, and granularity is 60 orders;
C, interpolation: granular urea and granular compound fertilizer are in born of the same parents' sulphur membrane process, in the middle of the afterbirth film that the mode that additive NaCL or KCL are sprayed with high pressure draft is added to, when sulphur afterbirth film runs into slowly drained soil in the film additive dissolve and form the fertilizer nutrient release aperture, fertilizer nutrient is discharged according to people's requirement, thereby make the intellectuality of intelligence sulphur afterbirth film.
Intelligent film provided by the present invention, not only can satisfy the nutrient requirement of crop different growing stages, reduce fertilizer economy input, also can make rational use of resources, avoid making nutrient loss such as nitrogen, phosphorus, enter river, lake because of fertilizer nutrient runs off, cause environmental pollution, have more controllability than traditional sulphur afterbirth film.
Embodiment:
A, raw material are prepared: employed raw material in this invention: granular urea or granular compound fertilizer, sulphur, additive NaCL or KCL, all there is sale in market at home, can simply buy.
B, pulverizing: additive NaCL or KCL are crushed to 60 orders, and screening is chosen.
C, interpolation: granular urea or granular compound fertilizer are added in the cylinder tablets press; start the tablets press rotation; granular urea or granular compound fertilizer are rolled in tablets press; spray into sulphur then; and add additive NaCL or KCL with the high pressure draft injection method simultaneously; itself and sulphur afterbirth are mixed,, form integument-intelligent film attached to granular urea or granular compound fertilizer surface.
Claims (1)
1, granular urea or granular compound fertilizer sulphur afterbirth intelligence membrane preparation method is characterized in that comprising
A, pulverizing: NaCL or KCL are crushed and screened, and granularity is 60 orders;
B, interpolation: with NaCL or KCL, adopt the high pressure draft injection method, be added in the sulphur afterbirth integument, form sulphur afterbirth intelligence film.
Preparation method according to claim intelligence film, it is characterized in that adopting the method for high pressure draft injection, when adding the sulphur afterbirth, spray NaCL or KCL once according to per 5 seconds of after birth fertilizer flow, NaCL or KCL are evenly distributed in the sulphur afterbirth film, when sulphur afterbirth film runs into slowly drained soil in the film additive dissolve and form the fertilizer nutrient release aperture, granular urea or composite fertilizer's nutrient discharge from the slowly-releasing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101956648A CN101279866B (en) | 2007-12-05 | 2007-12-05 | Preparation for sulfur coated intelligent film of large grained urea or particulate composite fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101956648A CN101279866B (en) | 2007-12-05 | 2007-12-05 | Preparation for sulfur coated intelligent film of large grained urea or particulate composite fertilizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101279866A true CN101279866A (en) | 2008-10-08 |
| CN101279866B CN101279866B (en) | 2011-01-05 |
Family
ID=40012565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101956648A Expired - Fee Related CN101279866B (en) | 2007-12-05 | 2007-12-05 | Preparation for sulfur coated intelligent film of large grained urea or particulate composite fertilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101279866B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8524658B2 (en) | 2009-05-12 | 2013-09-03 | Nestec S.A. | Lactoferrin and brain health and development in infants |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1065850C (en) * | 1997-07-31 | 2001-05-16 | 吴成祥 | Coated multi-element high-efficiency urea-S-P-K compound fertilizer and its preparing process |
| CN1644568A (en) * | 2004-12-20 | 2005-07-27 | 周端午 | Nutrient released modle of compound controlled releasing and production thereof |
| CN1321948C (en) * | 2005-12-13 | 2007-06-20 | 天津芦阳化肥股份有限公司 | Shell body nitrogen fixing slow release composite fertilizer |
-
2007
- 2007-12-05 CN CN2007101956648A patent/CN101279866B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8524658B2 (en) | 2009-05-12 | 2013-09-03 | Nestec S.A. | Lactoferrin and brain health and development in infants |
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| Publication number | Publication date |
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| CN101279866B (en) | 2011-01-05 |
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