CN101973814B - Pure white compound fertilizer and preparation process thereof - Google Patents
Pure white compound fertilizer and preparation process thereof Download PDFInfo
- Publication number
- CN101973814B CN101973814B CN 201010507515 CN201010507515A CN101973814B CN 101973814 B CN101973814 B CN 101973814B CN 201010507515 CN201010507515 CN 201010507515 CN 201010507515 A CN201010507515 A CN 201010507515A CN 101973814 B CN101973814 B CN 101973814B
- Authority
- CN
- China
- Prior art keywords
- pure white
- compound fertilizer
- urea
- parts
- white compound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention discloses a pure white compound fertilizer and a preparation process thereof, relating to the technical field of agricultural fertilizer production. The pure white compound fertilizer is prepared from the following raw materials in parts by weight: 11-32 parts of potassium chloride, 20-32 parts of urea, 9-33 parts of diammonium phosphate and 17-54 parts of calcium carbonate. The preparation process sequentially comprises the following procedures of: preparing, stirring, crushing, pelleting, drying, primary cooling, primary screening, secondary cooling, secondary screening and finishing. The procedures of dissolving dilute sulphuric acid and spraying-in are added in the pelleting procedure. The pure white compound fertilizer has the characteristics of simple formula, full nutrition, pure white color, and the like. The pure white compound fertilizer can be used as a rice planting fertilizer, and can also be used as a fertilizer for vegetable, fruits, dry rice crops and fruiters. A user method and the consumption of the pure white compound fertilizer are same as that of the common compound fertilizer.
Description
Technical field
The present invention relates to the agricultural fertilizer production technical field, particularly a kind of pure white compound fertilizer preparation technology.
Background technology
In prior art, domestic composite fertilizer produces and mostly adopts urea, Repone K or vitriolate of tartar, calcium superphosphate, kaolin, dry powder to make the formula of raw material, kaolin mainly plays the binding agent effect, dry powder plays the amendment effect, be all disposable feeding intake during production, adopt the technological process of production of batching, stirring, fragmentation, granulation, drying, cooling, finished product; Because calcium superphosphate and kaolinic color are grey, the urea of white mixes with other raw materials in addition, therefore the general gray of produced composite fertilizer color.And the composite fertilizer of external import, its color is commonly white, and the difference of color causes domestic composite fertilizer often to be in a disadvantageous position in market competition at home and abroad, has had a strong impact on the development of domestic composite fertilizer industry.
Summary of the invention
For the existing above-mentioned deficiency of prior art, technical problem to be solved by this invention is to provide a kind of simple, comprehensive nutrition of filling a prescription, pure white composite fertilizer and the preparation technology thereof of color and luster.
The technical solution used in the present invention is a kind of pure white compound fertilizer of invention, is formulated by the following raw materials according weight share:
Repone K 11-32 urea 20-32 diammonium phosphate 9-33 dry powder 17-54.
The scheme one of its optimization is formulated by the following raw materials according weight share:
Repone K 11 urea 29 diammonium phosphate 9 dry powders 51.
The scheme two of its optimization is formulated by the following raw materials according weight share:
Repone K 11 urea 20 diammonium phosphate 15 dry powders 54.
The scheme three of its optimization is formulated by the following raw materials according weight share:
Repone K 12 urea 24 diammonium phosphate 11 dry powders 53.
The scheme four of its optimization is formulated by the following raw materials according weight share:
Repone K 26 urea 20 diammonium phosphate 33 dry powders 21.
The scheme five of its optimization is formulated by the following raw materials according weight share:
Repone K 19 urea 27 diammonium phosphate 15 dry powders 39.
The scheme six of its optimization is formulated by the following raw materials according weight share:
Repone K 25 urea 32 diammonium phosphate 17 dry powders 26.
The scheme seven of its optimization is formulated by the following raw materials according weight share:
Repone K 32 urea 31 diammonium phosphate 20 dry powders 17.
The scheme eight of its optimization is formulated by the following raw materials according weight share:
Repone K 16 urea 27 diammonium phosphate 13 dry powders 44.
The scheme nine of its optimization is formulated by the following raw materials according weight share:
Repone K 21 urea 30 diammonium phosphate 22 dry powders 27.
In above-mentioned each technical scheme, if adopt vitriolate of tartar or saltpetre to replace Repone K, be equivalent technical solutions of the present invention.
Simultaneously, provide the preparation technology of above-mentioned pure white compound fertilizer, its technical process comprises following operation successively: batching, stirring, fragmentation, granulation, drying, once cooling, once screening, secondary are cooling, regrading, finished product; Also be provided with the dilute sulphuric acid dissolving and spray into operation in granulating working procedure.
Also be provided with successively sulfuric acid collection and confinement of gases, cooling, recovery process after a drying process.
Also be provided with successively sulfuric acid collection and confinement of gases, neutralization, byproduct operation after a drying process.
Be respectively equipped with also once in once screening and regrading operation that operation is returned in screening and regrading returns to operation, described once the screening returned to operation and regrading and returned to operation and all be connected in granulating working procedure.
Pure white compound fertilizer of the present invention, its formula have been abandoned darker calcium superphosphate and the kaolin of color in the conventional formulation, make its formula relatively simple, and the raw material color is pure white consistent, and includes nitrogen phosphorus potassium, comprehensive nutrition in composition; Simultaneously, adopt the mode that feeds intake for twice, urea sulfate solution as binding agent, can be bonded to particle with various raw materials on the one hand, sulfuric acid also can brighten various raw materials on the other hand, thereby, can guarantee prepared composite fertilizer, its color is lily.
Description of drawings
Fig. 1 is process flow diagram of the present invention;
Fig. 2 is the process flow diagram of a special case of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated.
Embodiment one:
1, weight share takes respectively Repone K and (contains potassium 57%, below each example identical therewith) 11 parts, urea (nitrogenous 46.4%, below each example identical therewith) 9 parts of 29 parts, diammonium phosphate (nitrogenous 18%, phosphorous 46%, below each example identical therewith), 51 parts of dry powders be standby;
2, above-mentioned standby Repone K, diammonium phosphate and dry powder are mixed, stir, send into and be broken into 80-200 purpose particulate in shredder assembly, become compound, standby;
3, above-mentioned standby urea is joined 145 parts of (weight quota, below each example identical therewith) (concentration is 2% to dilute sulphuric acid, below each example identical therewith) in dissolve, make 20% urea sulfate solution (by the dilute sulphuric acid preparation of the urea of 1 part of weight, 5 parts of weight), standby;
4, with above-mentioned standby compound, be sent in the rotating cylinder of prilling granulator and carry out granulation, simultaneously, with above-mentioned standby urea sulfate solution, be injected to by spraying plant in the compound in the rotating cylinder of prilling granulator; The urea sulfate solution that sprays due to spraying plant is the water smoke shape, therefore can be with Repone K, diammonium phosphate and dry powder parcel bonding, form fine particle, and under the rotary action of rotating cylinder, fine particle increases like snowball gradually, become larger particles (diameter is the specification of 1-4.75mm or 3.35-5.6mm), complete granulation;
5, through the particle after granulating working procedure, be fed to and carry out drying (drying temperature remains on 400-700 ℃ usually) in drying plant, simultaneously, in drying plant, sulfuric acid collection and confinement of gases equipment is installed; Dilute sulphuric acid in particle is evaporated out in drying process, by sulfuric acid collection and confinement of gases equipment, it is collected, and so far, can adopt direct recovery and fully utilize two kinds of methods the sulfuric acid gas of collecting is processed:
1. directly reclaim: the sulfuric acid gas of collecting is sent in refrigerating unit, carries out coolingly, make the sulfuric acid gas of collection again become dilution heat of sulfuric acid again, reclaimed;
2. comprehensive utilization: the sulfuric acid gas of collecting is sent to carries out neutralization reaction in neutralising arrangement, usually adopt aqua calcis as neutralizer; In neutralising arrangement, sulfuric acid gas is blown in aqua calcis, the sulfuric acid in gas and the calcium hydroxide generation chemical reaction in solution, and [its chemical equation is: Ca (OH) to generate calcium sulfate and water
2+ H
2SO
4=CaSO
4+ 2H
2O], calcium sulfate wherein can be used as byproduct utilized.
6, through dried particle, be fed to and carry out coolingly for the first time in refrigerating unit, make the temperature of particle be down to 200-400 ℃;
7, will deliver in a screening plant through cooled particle once and sieve for the first time, the less fine particle of particle diameter in the sieve degranulation, and with the fine particle that sifts out via once sieving return mechanism, send back to granulation again in prilling granulator;
8, will deliver to through the particle after screening once and carry out coolingly for the second time in secondary cooling apparatus, and make particle temperature be down to normal temperature;
9, will deliver in the regrading device through the cooled particle of secondary cooling apparatus and sieve for the second time, the less fine particle of particle diameter in the sieve degranulation, and with the fine particle that sifts out via the regrading return mechanism, send back to granulation again in prilling granulator;
10, through the particle after regrading, namely become product, then through packing, namely become pure white compound fertilizer finished product of the present invention.
Pure white compound fertilizer of the present invention both can be used as Rice Cropping fertilizer, also can be used as vegetables, melon and fruit, non-irrigated grain and fruit tree fertilizer, and its using method is identical with Common compound fertilizer with consumption.
Embodiment two:
1, it is standby that weight share takes respectively 11 parts, Repone K, 20 parts, urea, 15 parts of diammonium phosphate, 54 parts of dry powders;
2, above-mentioned standby Repone K, diammonium phosphate and dry powder are mixed, stir, send into and be broken into 80-200 purpose particulate in shredder assembly, become compound, standby;
3, above-mentioned standby urea is joined in 100 parts of dilute sulphuric acids dissolve, make 20% urea sulfate solution, standby;
Other step is the same.
Embodiment three:
1, it is standby that weight share takes respectively 12 parts, Repone K, 24 parts, urea, 11 parts of diammonium phosphate, 53 parts of dry powders;
2, above-mentioned standby Repone K, diammonium phosphate and dry powder are mixed, stir, send into and be broken into 80-200 purpose particulate in shredder assembly, become compound, standby;
3, above-mentioned standby urea is joined in 120 parts of dilute sulphuric acids dissolve, make 20% urea sulfate solution, standby;
Other step is the same.
Embodiment four:
1, it is standby that weight share takes respectively 26 parts, Repone K, 20 parts, urea, 33 parts of diammonium phosphate, 21 parts of dry powders;
2, above-mentioned standby Repone K, diammonium phosphate and dry powder are mixed, stir, send into and be broken into 80-200 purpose particulate in shredder assembly, become compound, standby;
3, above-mentioned standby urea is joined in 100 parts of dilute sulphuric acids dissolve, make 20% urea sulfate solution, standby;
Other step is the same.
Embodiment five:
1, it is standby that weight share takes respectively 19 parts, Repone K, 27 parts, urea, 15 parts of diammonium phosphate, 39 parts of dry powders;
2, above-mentioned standby Repone K, diammonium phosphate and dry powder are mixed, stir, send into and be broken into 80-200 purpose particulate in shredder assembly, become compound, standby;
3, above-mentioned standby urea is joined in 135 parts of dilute sulphuric acids dissolve, make 20% urea sulfate solution, standby;
Other step is the same.
Embodiment six:
1, it is standby that weight share takes respectively 25 parts, Repone K, 32 parts, urea, 17 parts of diammonium phosphate, 26 parts of dry powders;
2, above-mentioned standby Repone K, diammonium phosphate and dry powder are mixed, stir, send into and be broken into 80-200 purpose particulate in shredder assembly, become compound, standby;
3, above-mentioned standby urea is joined in 160 parts of dilute sulphuric acids dissolve, make 20% urea sulfate solution, standby;
Other step is the same.
Embodiment seven:
1, it is standby that weight share takes respectively 32 parts, Repone K, 31 parts, urea, 20 parts of diammonium phosphate, 17 parts of dry powders;
2, above-mentioned standby Repone K, diammonium phosphate and dry powder are mixed, stir, send into and be broken into 80-200 purpose particulate in shredder assembly, become compound, standby;
3, above-mentioned standby urea is joined in 155 parts of dilute sulphuric acids dissolve, make 20% urea sulfate solution, standby;
Other step is the same.
Embodiment eight:
1, it is standby that weight share takes respectively 16 parts, Repone K, 27 parts, urea, 13 parts of diammonium phosphate, 44 parts of dry powders;
2, above-mentioned standby Repone K, diammonium phosphate and dry powder are mixed, stir, send into and be broken into 80-200 purpose particulate in shredder assembly, become compound, standby;
3, above-mentioned standby urea is joined in 135 parts of dilute sulphuric acids dissolve, make 20% urea sulfate solution, standby;
Other step is the same.
Embodiment nine:
1, it is standby that weight share takes respectively 21 parts, Repone K, 30 parts, urea, 22 parts of diammonium phosphate, 27 parts of dry powders;
2, above-mentioned standby Repone K, diammonium phosphate and dry powder are mixed, stir, send into and be broken into 80-200 purpose particulate in shredder assembly, become compound, standby;
3, above-mentioned standby urea is joined in 150 parts of dilute sulphuric acids dissolve, make 20% urea sulfate solution, standby;
Other step is the same.
Claims (9)
1. pure white compound fertilizer preparation technology it is characterized in that by the following raw materials according weight share formulated:
Repone K 11-32 urea 20-32 diammonium phosphate 9-33 dry powder 17-54;
Its preparation technology's flow process comprises following operation successively: batching, stirring, fragmentation, dilute sulphuric acid dissolved urea, spray into, granulation, drying, once cooling, once screening, secondary are cooling, regrading, finished product.
2. pure white compound fertilizer preparation technology according to claim 1 it is characterized in that by the following raw materials according weight share formulated:
Repone K 11 urea 29 diammonium phosphate 9 dry powders 51.
3. pure white compound fertilizer preparation technology according to claim 1 it is characterized in that by the following raw materials according weight share formulated:
Repone K 11 urea 20 diammonium phosphate 15 dry powders 54.
4. pure white compound fertilizer preparation technology according to claim 1 it is characterized in that by the following raw materials according weight share formulated:
Repone K 26 urea 20 diammonium phosphate 33 dry powders 21.
5. pure white compound fertilizer preparation technology according to claim 1 it is characterized in that by the following raw materials according weight share formulated:
Repone K 25 urea 32 diammonium phosphate 17 dry powders 26.
6. pure from composite fertilizer preparation technology according to claim 1, it is characterized in that by the following raw materials according weight share formulated:
Repone K 32 urea 31 diammonium phosphate 20 dry powders 17.
7. according to claim 1-6 described pure white compound fertilizer preparation technologies of any one, is characterized in that: also be provided with successively sulfuric acid collection and confinement of gases, cooling, recovery process after the drying process in its preparation technology's flow process.
8. according to claim 1-6 described pure white compound fertilizer preparation methods of any one, is characterized in that: also be provided with successively sulfuric acid collection and confinement of gases, neutralization, byproduct operation after the drying process in its preparation technology's flow process.
9. according to claim 1-6 described pure white compound fertilizer preparation technologies of any one, it is characterized in that: be respectively equipped with also in the once screening in its preparation technology's flow process and regrading operation once that operation is returned in screening and regrading returns to operation, described once screening is returned to operation and regrading and is returned to operation and all be connected in granulating working procedure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010507515 CN101973814B (en) | 2010-10-15 | 2010-10-15 | Pure white compound fertilizer and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010507515 CN101973814B (en) | 2010-10-15 | 2010-10-15 | Pure white compound fertilizer and preparation process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101973814A CN101973814A (en) | 2011-02-16 |
| CN101973814B true CN101973814B (en) | 2013-06-19 |
Family
ID=43573732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010507515 Expired - Fee Related CN101973814B (en) | 2010-10-15 | 2010-10-15 | Pure white compound fertilizer and preparation process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101973814B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241548A (en) * | 2011-05-20 | 2011-11-16 | 天津市昊昌实业有限公司兴马化肥厂 | Novel chemical fertilizer and preparation method thereof |
| CN102757290A (en) * | 2012-08-10 | 2012-10-31 | 九禾股份有限公司 | Polypeptide fertilizer and preparation method thereof for wheat |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1172095A (en) * | 1997-08-20 | 1998-02-04 | 王煜郊 | Producing method for inorganic compound fertilizer granulating |
| CN1651359A (en) * | 2004-02-06 | 2005-08-10 | 河北天人化工股份有限公司 | Production method of urocomposite fertilizer |
| CN1884222A (en) * | 2005-06-20 | 2006-12-27 | 上海化工研究院 | Method for producing complex fertilizer without drying process |
| CN101486610A (en) * | 2008-12-19 | 2009-07-22 | 深圳市芭田生态工程股份有限公司 | Compound fertilizer production method without drying process |
-
2010
- 2010-10-15 CN CN 201010507515 patent/CN101973814B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1172095A (en) * | 1997-08-20 | 1998-02-04 | 王煜郊 | Producing method for inorganic compound fertilizer granulating |
| CN1651359A (en) * | 2004-02-06 | 2005-08-10 | 河北天人化工股份有限公司 | Production method of urocomposite fertilizer |
| CN1884222A (en) * | 2005-06-20 | 2006-12-27 | 上海化工研究院 | Method for producing complex fertilizer without drying process |
| CN101486610A (en) * | 2008-12-19 | 2009-07-22 | 深圳市芭田生态工程股份有限公司 | Compound fertilizer production method without drying process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101973814A (en) | 2011-02-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101298396B (en) | Biological organic inorganic composite fertiliser and preparation thereof | |
| CN101570455B (en) | Method for preparing particle ammonium sulfate product by organic-inorganic binder | |
| CN102093113B (en) | Production method of readily available and controlled release composite fertilizer containing three nitrogen elements | |
| CN102718601B (en) | Large circular potassium chloride granule granulating auxiliary agent and preparation method | |
| CN101575222B (en) | Method for producing ammonium sulphate grain products by using inorganic caking agent | |
| CN102040427A (en) | Method for producing chlorine-based high phosphorus compound fertilizer by ammoniation method | |
| CN101508607B (en) | Process for producing long-acting sustained-release complex fertilizer of urea sulfuric acid | |
| CN103044145B (en) | Technology for directly producing organic chelating compound fertilizer through pelleting by ammonia-acid method | |
| CN102503622A (en) | Process for producing urea sulfate ammoniated compound fertilizer | |
| CN101638344A (en) | Fertilizer special for maintaining lawns and preparation method thereof | |
| CN103232293A (en) | High-concentration compound fertilizer and production method thereof | |
| CN106278609A (en) | A kind of low concentration Multi-functional circular granular potash fertilizer and preparation method | |
| CN101638342B (en) | Fertilizer special for celery cabbages and preparation method thereof | |
| CN103382140A (en) | Environment-friendly nitrogen potassium dressing fertilizer containing various nitrogen elements and preparation method thereof | |
| CN1187116C (en) | Process for preparing granular fertilizer | |
| CN101638347B (en) | Fertilizer special for peanuts and preparation method thereof | |
| CN101638346B (en) | Fertilizer special for soybeans and preparation method thereof | |
| CN105646106A (en) | Humic acid type functionality organic-inorganic compound fertilizer and preparing method thereof | |
| CN1834070A (en) | Spray pelleting process of compound fertilizer | |
| CN101973814B (en) | Pure white compound fertilizer and preparation process thereof | |
| CN102093114A (en) | Medical stone multielement silicon fertilizer and preparation method thereof | |
| CN103086804A (en) | Stable lumbrukinase granulated fertilizer and preparation method thereof | |
| CN108675862A (en) | A kind of preparation method of formula compound fertilizer and exempt from drying production process | |
| CN1208288C (en) | Drum peletizing process of molten ammonium nitrate-urea slurry to produce granulated composite fertilizer | |
| CN101638343A (en) | Special corn fertilizer and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20151015 |
|
| EXPY | Termination of patent right or utility model |