CN101531554A - Novel granulation method for producing fertilizers - Google Patents
Novel granulation method for producing fertilizers Download PDFInfo
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- CN101531554A CN101531554A CN200910020480A CN200910020480A CN101531554A CN 101531554 A CN101531554 A CN 101531554A CN 200910020480 A CN200910020480 A CN 200910020480A CN 200910020480 A CN200910020480 A CN 200910020480A CN 101531554 A CN101531554 A CN 101531554A
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- granulation
- granulation method
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Abstract
The invention relates to a novel granulation method for producing fertilizers, which comprises the following steps: adding proper amount of water to mixed raw materials according to the moisture content of the raw materials and the extrusion forming requirement, and stirring uniformly; and sending the raw materials into a fertilizer extrusion forming machine for extrusion, and cutting granules to complete the granulation. The granulation method has simple process, less equipment investment, small occupied area, and uniform granularity of the fertilizers without the working procedures such as material returning and the like; the water added to the mixture and the water exceeding the packaging standard can absorb volatilized heat energy which is generated by extrusion and friction in the extruding granulation process, and do not need drying again so that the mixture directly enters the packaging procedure; and in the granulation process, harmful gases are not exhausted, and tail gases need not be treated again, so that the method belongs to a novel clean and environment-friendly granulation process.
Description
Technical field:
The invention belongs to the fertilizer production technology scope, relate to a kind of novel granulation method of fertiliser production.
Background technology:
Granulation is an important procedure of fertiliser production.In the prior art, the granulation of fertiliser production mainly contains three kinds of granulating method, slurry process and melting method.The fertiliser granulates produced of granulating method and slurry process wherein all needs to carry out the processes such as processing of drying, cooling, screening, fragmentation, returning charge and tail gas, just enters the packet assembler of product then.Its technical process is long, and investment, floor space is big, the energy consumption height, and can cause certain pollution to environment.The melting method granulation need be adopted tower production to the raw material heating and melting, and needs cooling.Equally also exist big, the high problem of occupation of land multipotency consumption of investing.
Summary of the invention:
The novel granulation method that the purpose of this invention is to provide a kind of fertiliser production is in order to overcome the above-mentioned drawback of existing in prior technology effectively.The objective of the invention is to realize with following technical scheme: with the raw material that configures, according to its water content and extrusion molding requirement, it is an amount of to add water, stirs, and sends into the fertilizer single-lead-screw extruding briquetting machine and extrudes, and cut granulating simultaneously, then finishes granulation of the present invention.
The particle of fertilizer, its cross section can be circular, also can be other shapes, for example square, ellipse etc.; Wherein be best with the circle, its size, diameter can be the 1-5 millimeter, preferred 2-4 millimeter, length-to-diameter ratio is 1-3.
Prilling process technology of the present invention is simple, facility investment is few, floor space is little, the fertilizer epigranular, need not to carry out operations such as drying, cooling, screening, fragmentation, returning charge, add moisture in the batching and exceed the moisture of packaging standard, can in the extruding pelletization process, absorb the heat energy that extrusion friction emits and volatilize, need not to carry out again drying, thereby directly enter packaging process; In the granulation process of the present invention, no obnoxious flavour is discharged, and also need not tail gas is handled, and belongs to a kind of cleaning, environmental protection granulation novel process simultaneously.
Embodiment:
The present invention is described in detail below by embodiment:
Embodiment 1: take by weighing 72 kilograms in urea, 341 kilograms of powdery monoammonium phosphates, 250 kilograms in Repone K, 337 kilograms of ammonium chlorides; 50 kilograms in water, mixing and stirring is sent into screw extruding granulator, extrudes to justify strip; through cutting, producing diameter is 1 millimeter, and length is 3 millimeters cylindrical fertiliser granulates.The fertiliser granulates that manufactures satisfies packing instructions, directly delivers to packaging process and packs.This fertilizer is bulk blended fertilizer, and its nutrient content is N:P
2O
5: K
2O=15:15:15.
Embodiment 2: take by weighing 158 kilograms in brown coal, 227 kilograms of powdery monoammonium phosphates, 83 kilograms in Repone K, 532 kilograms of ammonium chlorides; 20 kilograms in water, mixing and stirring is sent into screw extruding granulator, extrudes to justify strip; through cutting, the fertiliser granulates that produces, diameter are 5 millimeters, and length is 5 millimeters.This fertilizer is bulk blended fertilizer, and its nitrogen, phosphorus, potassium content are 30%, and organic content is 15%.
Embodiment 3: take by weighing 310 kilograms in urea, 341 kilograms of powdery monoammonium phosphates, 182 kilograms in Repone K, 155 kilograms of ammonium chlorides; 60 kilograms in water, mixing and stirring is sent into screw extruding granulator, extrudes to justify strip; through cutting, producing diameter is 2 millimeters, and length is 4 millimeters cylindrical fertiliser granulates.The fertiliser granulates that manufactures satisfies packing instructions, directly delivers to packaging process and packs.This fertilizer is bulk blended fertilizer, and its nutrient content is N:P
2O
5: K
2O=20:8:20.
Embodiment 4: take by weighing 320 kilograms in brown coal, 160 kilograms of powdery monoammonium phosphates, 117 kilograms in Repone K; 310 kilograms in urea; 100 kilograms in water, mixing and stirring is sent into screw extruding granulator; extrude to justify strip; the cutting granulating, made fertiliser granulates, diameter are 2 millimeters; length is 10 millimeters, directly sends into the packaging process packing.This fertilizer is the miserable fertilizer that mixes, and its nitrogen, phosphorus, potassium content are 30%, and organic content is 20%.
Claims (3)
1, a kind of novel granulation method of fertiliser production is characterized in that it is the raw material that will configure, and according to its water content and extrusion molding requirement, it is an amount of to add water, stirs, send into the fertilizer single-lead-screw extruding briquetting machine and extrude, and the cutting granulating.
2, novel granulation method according to claim 1 is characterized in that the particle of the fertilizer of making, cross section are circular, its size, and diameter is the 1-5 millimeter, length-to-diameter ratio is 1-3.
3, novel granulation method according to claim 2, the diameter that it is characterized in that the fertiliser granulates of making is the 2-4 millimeter, length-to-diameter ratio is 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910020480A CN101531554A (en) | 2009-04-10 | 2009-04-10 | Novel granulation method for producing fertilizers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910020480A CN101531554A (en) | 2009-04-10 | 2009-04-10 | Novel granulation method for producing fertilizers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101531554A true CN101531554A (en) | 2009-09-16 |
Family
ID=41102437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910020480A Pending CN101531554A (en) | 2009-04-10 | 2009-04-10 | Novel granulation method for producing fertilizers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101531554A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108752080A (en) * | 2018-08-02 | 2018-11-06 | 张居政 | A method of using the legal preparation composite fertilizer of extruded carbon |
| CN112939706A (en) * | 2021-04-01 | 2021-06-11 | 义乌市创继农业科技有限公司 | Preparation method of high-concentration binary compound fertilizer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2063846U (en) * | 1989-07-07 | 1990-10-17 | 化学工业部化工机械研究院 | Single screw arbor extrusion prilling machine with device of cutting and kneading |
| CN1562904A (en) * | 2004-03-21 | 2005-01-12 | 陈茂铨 | Method for changing sludge to organic fertilizer |
| CN1850653A (en) * | 2006-05-31 | 2006-10-25 | 清华大学 | Water treatment biological carrier and making method therefor |
-
2009
- 2009-04-10 CN CN200910020480A patent/CN101531554A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2063846U (en) * | 1989-07-07 | 1990-10-17 | 化学工业部化工机械研究院 | Single screw arbor extrusion prilling machine with device of cutting and kneading |
| CN1562904A (en) * | 2004-03-21 | 2005-01-12 | 陈茂铨 | Method for changing sludge to organic fertilizer |
| CN1850653A (en) * | 2006-05-31 | 2006-10-25 | 清华大学 | Water treatment biological carrier and making method therefor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108752080A (en) * | 2018-08-02 | 2018-11-06 | 张居政 | A method of using the legal preparation composite fertilizer of extruded carbon |
| CN112939706A (en) * | 2021-04-01 | 2021-06-11 | 义乌市创继农业科技有限公司 | Preparation method of high-concentration binary compound fertilizer |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20090916 |