CN1085201A - Controlled-release laminate granular compound fertilizer and production method - Google Patents
Controlled-release laminate granular compound fertilizer and production method Download PDFInfo
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- CN1085201A CN1085201A CN92112184A CN92112184A CN1085201A CN 1085201 A CN1085201 A CN 1085201A CN 92112184 A CN92112184 A CN 92112184A CN 92112184 A CN92112184 A CN 92112184A CN 1085201 A CN1085201 A CN 1085201A
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- fertilizer
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- liniment
- compound fertilizer
- granular compound
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
- C05G5/38—Layered or coated, e.g. dust-preventing coatings layered or coated with wax or resins
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- Pest Control & Pesticides (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
The present invention relates to the stratiform controlled availability fertilizer.Controlled-release laminate granular compound fertilizer of the present invention is made of each thick composite fertilizer's bed of material of N, P, K compound manure core and the 1～3mm of a 1.5～4mm, multiple fertile core is that the core layer tackiness agent is bonding, the outer tackiness agent of the multiple fertile employing of each layer is bonding, between layer and the layer internal layer Liniment is arranged, the outermost layer of fertilizer is outer Liniment parcel.Production method of the present invention is simple, adopts big stream, the partial circulating route, and the shared property of equipment is strong, less investment, energy consumption is low, and output is big, the economic benefit height.
Description
The present invention relates to the stratiform controlled availability fertilizer.
Method for making according to domestic report granulated fertilizer is generally flat disk granulating and compacting granulating, and the granulated fertilizer intensity of making like this is lower, and powder is many, fertilizer efficiency is easily lost.Mostly be adding tackiness agent, weighting agent, synergistic agent, inhibitor, conditioning agent etc. according to the granulated fertilizer of reporting in the foreign patent application, purpose is to strengthen fertilizer performance and intensity, but above-mentioned fertilizer method for making all belongs to granulation process one time.
Purpose of the present invention aims to provide a kind of long lasting laminate granular compound fertilizer and this multiple fertile repeatedly complete processing.
Controlled-release laminate granular compound fertilizer of the present invention is made of each thick composite fertilizer's bed of material of N, P, K compound manure core and the 1～3mm of a 1.5～4mm, multiple fertile core is that the core layer tackiness agent is bonding, the outer tackiness agent of the multiple fertile employing of each layer is bonding, between layer and the layer internal layer Liniment is arranged, the outermost layer of fertilizer is outer Liniment parcel.
The production method of laminate granular compound fertilizer of the present invention is made up of following steps:
(1) with N, P, more than K single fertilizer powder to 100 order, moisture content＜5%, mix metering back;
(2) mixed material enters in the circular arc tablets press, sprays into 30～70 ℃ of core layer tackiness agents under moving condition, makes core;
(3) enter drying in the moisture eliminator behind the granulating, make moisture＜2%, the screening diameter is the core of 1.5～4mm;
(4) pellet after screening enters sprayer, and is with 60～80 ℃ internal layer Liniment spraying, air-cooled;
(5) pellet after spraying; enter again in the circular arc tablets press; add 100 orders above single N, P, K fertilizer; under moving condition, spray into 30～70 ℃ of outer tackiness agents; make the particle of 3～7mm; with this granulation that circulates, extremely last outermost layer sprays outer Liniment, gets finished product behind metering packing.
Each layer is the identical or different compound manure of composition in the laminate granular compound fertilizer of the present invention, to adapt to the needs of crop different growing stage, the multiple employed core layer tackiness agent of fertile granular core is the saturated hot solution of N, P, K salt, its ratio of mixture can be consistent with N, P, the K ratio in the multiple fertilizer of core, also desirable other numerical value, its consumption is 1～3%(weight percent of bonding fertilizer).After causing core, wrap up with the internal layer Liniment, the internal layer Liniment is a paraffin wax, SULPHUR POWDER, diatomite, the thermosol mixture of agricultural rare-earth, the mixed weight ratio is 1: 0.3～0.7: 0.1～0.5: 0.1～0.3, after the drying, promptly finish the core granulation, the laminate structure of back is based on this core, the granulation that circulates forms, different is that employed outer tackiness agent is a urea formaldehyde polymer solution after the second layer, in 2% alkyd resin solution, 4～6% Nitrocellulose glue any, outer Liniment can be 2～4% enols, 4～6% Nitrocellulose glue, ratio of mixture is 0.1～0.6: 1, also can be independent paraffin wax, 2～4% enols, 4～6% Nitrocellulose glue add an amount of weighting agent, weighting agent such as diatomite, wilkinite, agricultural rare-earth and pigment etc.
Tackiness agent, Liniment are to be carrier with pressurized gas in the production method of laminate granular compound fertilizer of the present invention, air pressure 1～2Kg/cm
2, the spray of Liniment is apart from being 40～60mm, spraying swath 40～70mm, sprayed material get curtain formula freely falling body to spray, also can make the equipment interior orientation spraying of material cyclic motion, and coating thickness 0.05～0.15mm, 92 ℃ of drying temperatures, the choosing grain is chosen with probability screen.
The present invention compared with prior art has following advantage:
(1) production method is simple, adopts big stream, the partial circulating route, and the shared property of equipment is strong, less investment, energy consumption is low, and output is big, the economic benefit height.
(2) production process does not produce public hazards.
Through Yuxi, Yunnan tobacco company, cigarette section station, Yunnan river and mountain tobacco company in Yuxi river and mountain sub-district demonstration test with through Yuxi, counties such as river and mountain, Chengjiang, maritime, E Shan are with field contrast and the contrast of import fertilizer: per mu yield increases by 2.4～9.96%, per mu yield cigarette 165.3～226.5Kg, first-class cigarette increases by 8.3～23.2%, accounts for 56.6～64.9%; Last medium grade cigarette increases by 5～7.7%, accounts for 82.9～91.2%, and the per mu yield value increases by 2.8～26.42%, 674.13～830.8 yuan of mu values, conclusion (of pressure testing) show that compound fertilizer efficiency of the present invention is stable, long fertilizers period, do not take off fertilizer, disease and insect resistance, anti-evil, drought-resistant ability are strong, and effect of increasing production is obvious.In the vegetative period of crop, can slowly discharge for a long time, can accomplish a bulk application, do not execute or Shaoshi topdresses.
But the big granulated fertilizer of also production three-decker of method of the present invention diameter 8～12mm and 12～16mm.Layer structure fertilizer is the release by stages with fertilizer, satisfies the demand of crop growth period to fertilizer, prevents fertilizer loss.
Of the present invention multiple fertile through dissolving, water is rare to can be used as fertilizer for spraying on leaf surface to 200～1000 times.
Embodiment: tobacco is used granular compound fertilizer
It is an amount of to get phosphorus ammonium, vitriolate of tartar, saltpetre, ammonium nitrate, urea, and make the N of its total amount: the ratio of P2O5: K2O was controlled at 1: 2: 3.
Feedstock production: with above-mentioned participation raw material powder to 100～150 orders, moisture content＜5%, metering mixes respectively: mixing time 4～8 minutes, 0.4～1 ton of each combined amount is mixed all degree＞95%.
Granulation: material enters in diameter 1.8～2M circular arc tablets press, sprays into 40～50 ℃ of core layer tackiness agents under moving condition, makes core.
Dry: behind the granulating, drying device drying makes moisture content step-down＜2% first, through probability screen screening diameter 2～4mm particle.
Spraying: the pellet after screening enters sprayer, and is with 60～80 ℃ of internal layer Liniment sprayings, air-cooled.
Secondary granulation: pellet after the spraying and aforementioned single powder enter the circular arc tablets press again in 1: 2: 3 ratio, under moving condition, spray into 40～60 ℃ of outer tackiness agents, make the particle of particle diameter 4～6mm.
Dry: the material behind the secondary granulation enters moisture eliminator, make moisture content reduce to＜2%, through the particle of probability screen screening diameter 4～6mm.
Surface applied: the pellet of screening enters sprayer, carries out the surface spraying with outer Liniment, after air-cooled, and the input bucket.For the surface has the glossy spheroid.
Packing: metering from the finished product bucket, packing.
Returning charge is handled: first and second granulation is allocated in the new powder and is used after powder that probability screen filters out and defective pellet are transported to raw material powder fine workmanship preface through belt.
Claims (10)
1, a kind of controlled-release laminate granular compound fertilizer, it is characterized in that constituting by each thick composite fertilizer's bed of material of N, P, K compound manure core and the 1～3mm of a 1.5～4mm, multiple fertile core is that the core layer tackiness agent is bonding, the outer tackiness agent of the multiple fertile employing of each layer is bonding, between layer and the layer internal layer Liniment is arranged, the outermost layer of fertilizer is outer Liniment parcel.
2, a kind of production method of controlled-release laminate granular compound fertilizer is characterized in that being made up of following steps:
(1) with N, P, more than K single fertilizer powder to 100 order, moisture content＜5%, mix metering back;
(2) mixed material enters in the circular arc tablets press, sprays into 30～70 ℃ of core layer tackiness agents under moving condition, makes core;
(3) enter drying in the moisture eliminator behind the granulating, make moisture＜2%, the screening diameter is the core of 1.5～4mm;
(4) pellet after screening enters sprayer, and is with 60～80 ℃ internal layer Liniment spraying, air-cooled;
(5) pellet after spraying; enter again in the circular arc tablets press; add 100 orders above single N, P, K fertilizer; under moving condition, spray into 30～70 ℃ of outer tackiness agents; make the particle of 3～7mm; with this granulation that circulates, extremely last outermost layer sprays outer Liniment, gets finished product after metering, packing.
3,, it is characterized in that described core layer tackiness agent is the saturated hot solution of N, P, K salt according to the described laminate granular compound fertilizer of claim 1.
4,, it is characterized in that described outer tackiness agent is any in urea formaldehyde polymer solution, 2% alkyd resin solution, 4～6% Nitrocellulose glue according to the described laminate granular compound fertilizer of claim 1.
5, according to the described laminate granular compound fertilizer of claim 1, it is characterized in that the thermosol mixture that described internal layer Liniment is paraffin wax, SULPHUR POWDER, diatomite, agricultural rare-earth, the mixed weight ratio is 1: 0.3～0.7: 0.1～0.5: 0.1～0.3.
6, according to the described laminate granular compound fertilizer of claim 1, it is characterized in that described outer Liniment is 2～4% enols, 4～6% Nitrocellulose glue, ratio of mixture is 0.1～0.6: 1.
7,, it is characterized in that described outer Liniment is that independent paraffin wax, 2～4% enols, 4～6% Nitrocellulose glue add an amount of weighting agent according to the described laminate granular compound fertilizer of claim 1.
8,, it is characterized in that described weighting agent is diatomite, wilkinite, agricultural rare-earth and pigment according to the described laminate granular compound fertilizer of claim 7.
9,, it is characterized in that described tackiness agent, Liniment are is that carrier sprays into pressurized gas according to the production method of the described laminate granular compound fertilizer of claim 2.
10,, it is characterized in that sprayed material gets curtain formula freely falling body to spray, or make material at the spraying of the equipment interior orientation of cyclic motion, coating thickness 0.05～0.15mm according to the production method of the described laminate granular compound fertilizer of claim 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92112184A CN1085201A (en) | 1992-09-30 | 1992-09-30 | Controlled-release laminate granular compound fertilizer and production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92112184A CN1085201A (en) | 1992-09-30 | 1992-09-30 | Controlled-release laminate granular compound fertilizer and production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1085201A true CN1085201A (en) | 1994-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92112184A Pending CN1085201A (en) | 1992-09-30 | 1992-09-30 | Controlled-release laminate granular compound fertilizer and production method |
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| CN (1) | CN1085201A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086684C (en) * | 1998-11-06 | 2002-06-26 | 金维续 | Process for preparing slowly released chemical nitrogen fertilizer |
| CN1314627C (en) * | 2005-11-29 | 2007-05-09 | 贵阳中化开磷化肥有限公司 | Process for packing products of diaminium phosphate and cooling process |
| CN100484907C (en) * | 2003-06-25 | 2009-05-06 | 中国科学院大连化学物理研究所 | Biological inorganic complex fertilizer |
| CN100522894C (en) * | 2006-04-30 | 2009-08-05 | 中国科学院过程工程研究所 | Degradable natural organic matter bundled slow-releasing fertilizer and preparation method and usage thereof |
| CN101423444B (en) * | 2008-11-25 | 2012-09-05 | 贵州大学 | High efficiency gradient dissolution and release fertilizer and production method |
| CN106365827A (en) * | 2016-08-30 | 2017-02-01 | 史丹利化肥丰城有限公司 | Special fertilizer for synchronously nourishing super rice and preparation method of special fertilizer |
| CN106892757A (en) * | 2017-04-12 | 2017-06-27 | 山东爱福地生物科技有限公司 | A kind of preparation method of silicon magnesium calcium fertilizer material |
| CN108516899A (en) * | 2018-06-25 | 2018-09-11 | 山东农业大学 | A kind of functional form slow-release or control-release fertilizer core and preparation method thereof based on biological based binder |
-
1992
- 1992-09-30 CN CN92112184A patent/CN1085201A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086684C (en) * | 1998-11-06 | 2002-06-26 | 金维续 | Process for preparing slowly released chemical nitrogen fertilizer |
| CN100484907C (en) * | 2003-06-25 | 2009-05-06 | 中国科学院大连化学物理研究所 | Biological inorganic complex fertilizer |
| CN1314627C (en) * | 2005-11-29 | 2007-05-09 | 贵阳中化开磷化肥有限公司 | Process for packing products of diaminium phosphate and cooling process |
| CN100522894C (en) * | 2006-04-30 | 2009-08-05 | 中国科学院过程工程研究所 | Degradable natural organic matter bundled slow-releasing fertilizer and preparation method and usage thereof |
| CN101423444B (en) * | 2008-11-25 | 2012-09-05 | 贵州大学 | High efficiency gradient dissolution and release fertilizer and production method |
| CN106365827A (en) * | 2016-08-30 | 2017-02-01 | 史丹利化肥丰城有限公司 | Special fertilizer for synchronously nourishing super rice and preparation method of special fertilizer |
| CN106892757A (en) * | 2017-04-12 | 2017-06-27 | 山东爱福地生物科技有限公司 | A kind of preparation method of silicon magnesium calcium fertilizer material |
| CN108516899A (en) * | 2018-06-25 | 2018-09-11 | 山东农业大学 | A kind of functional form slow-release or control-release fertilizer core and preparation method thereof based on biological based binder |
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