CN102249809A - Method for preparing adhesive for organic fertilizer granulation by using corn flour - Google Patents
Method for preparing adhesive for organic fertilizer granulation by using corn flour Download PDFInfo
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- CN102249809A CN102249809A CN2011101544292A CN201110154429A CN102249809A CN 102249809 A CN102249809 A CN 102249809A CN 2011101544292 A CN2011101544292 A CN 2011101544292A CN 201110154429 A CN201110154429 A CN 201110154429A CN 102249809 A CN102249809 A CN 102249809A
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- corn flour
- dextrin
- caustic soda
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- hydrogen peroxide
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Abstract
The invention discloses a method for preparing an adhesive for organic fertilizer granulation by using corn flour. In the method, the corn flour, caustic soda and hydrogen peroxide are taken as raw materials, and through main operating steps of preparing alkali liquor, adding alkali for gelatinization, adding oxygen for modification, keeping temperature for hydrolysis and the like, the corn flour is converted into the adhesive for organic fertilizer granulation. The method is simple; and when the prepared modified corn flour adhesive is used for organic fertilizer granulation, the adhesive has the advantages of small using amount, low cost, high granulation rate, high capacity of being stored and transported and the like.
Description
Technical field
The present invention relates to a kind of method of making the fertilizer granulation, relate in particular to a kind of corn flour that utilizes and make the method for fertilizer granulation with binding agent with binding agent.
Background technology
In agriculture production, the fertilizer consumption is very big, when obtaining than high production, has also occurred problems such as nutrient loss, soil compaction, secondary salinization, water pollution using chemical fertilizer in a large number.In recent years, grow up gradually based on the organic fertilizer that contains of fertilizer, compound organic and inorganic fertilizer, microbial-bacterial fertilizer, show aborning improve the soil, advantage such as culture fertility, raising agricultural product quality.
At present, more welcome fertilizer all is through granulation and epigranular, stay-in-grade product usually on the agricultural materials market.Fertilizer also can directly use without granulation, but because be loose condition (of surface), is difficult to mechanical fertilization, needs manual operation, thereby is difficult to promote.
The fertilizer granulation process mainly contains extruder grain, disk granulation and drum granulating.Because of fertilizer bad adhesion, easy reason such as decompositions, and make that returning charge is many in the granulation process, granulating rate is low, the energy consumption height, and also the organic fertilizer particles hardness of making is low, the size is inhomogeneous, not easy fragmentation in storage endurance, the transportation.
In the prior art, for solving fertilizer granulation problem, in fertilizer, add clay minerals such as Attapulgite, wilkinite usually, in order to increase the cohesiveness and the hardness of organic fertilizer particles, but this way has reduced the organic matter and the nutrient content of product, and cost also has bigger increase simultaneously.The producer that also has attempts adopting treated starch to make organic fertilizer particles, because the treated starch cost is higher, though can improve the organic fertilizer particles granulating rate, the cost increase is more, thus also be difficult to large-scale application.
Summary of the invention
The purpose of this invention is to provide a kind of corn flour that utilizes and make the method for fertilizer granulation with binding agent, this method is the fertilizer granulation binding agent that main raw material is made with the corn flour, and returning charge is few in the production process, granulating rate is high, epigranular, big, the anti-accumulating of product of hardness.
The objective of the invention is to be achieved through the following technical solutions:
The corn flour that utilizes of the present invention is made the method for fertilizer granulation with binding agent, comprises step:
A, preparation alkali lye: caustic soda is dissolved in 50 ℃ the hot water, makes mass concentration and be 1.7～2.0% caustic soda soln;
B, add the alkali gelatinization: above-mentioned caustic soda soln and granularity are puddled more than or equal to 100 purpose corn flours, and the mass concentration of corn flour is 18～20%, fully stirs and makes the corn flour gelatinization, makes the corn flour dextrin;
C, oxygenation modification: the adding mass concentration is 30% hydrogen peroxide solution in above-mentioned corn flour dextrin, and the volume ratio of the hydrogen peroxide solution of adding and corn flour dextrin is 1: 50～1: 60, stirs;
D, insulation hydrolysis: the corn flour dextrin that will add hydrogen peroxide places under 50 ℃ of temperature and is incubated 1～2 hour, makes the modified corn cereal binder.
As seen from the above technical solution provided by the invention, the corn flour that utilizes provided by the invention is made the method for fertilizer granulation with binding agent, with corn flour, caustic soda, hydrogen peroxide is raw material, by preparation alkali lye, add several main operational steps such as alkali gelatinization, oxygenation modification, insulation hydrolysis, corn flour is converted into fertilizer granulation binding agent.This method technology is simple, when the modified corn cereal binder of making is used for the fertilizer granulation, has advantages such as consumption is few, cost is low, granulating rate is high, pellet hardness is big, the anti-accumulating of product.
Description of drawings
Fig. 1 makes the method flow diagram of fertilizer granulation with binding agent for the corn flour that utilizes that the embodiment of the invention provides.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is described in further detail.
The corn flour that utilizes of the present invention is made the method for fertilizer granulation with binding agent, and its preferable embodiment comprises step as shown in Figure 1:
A, preparation alkali lye: caustic soda is dissolved in to make mass concentration in 50 ℃ the hot water be 1.7～2.0% caustic soda soln;
B, add the alkali gelatinization: above-mentioned caustic soda soln and granularity are not less than 100 purpose corn flours puddle, the mass concentration of corn flour is 18～20%, fully stirs and makes the corn flour gelatinization;
C, oxygenation modification: the adding mass concentration is 30% hydrogen peroxide solution in above-mentioned corn flour dextrin, and the volume ratio of the hydrogen peroxide solution of adding and corn flour dextrin is 1: 50～1: 60, stirs rapidly;
D, insulation hydrolysis: the corn flour dextrin that will add hydrogen peroxide places under 50 ℃ of temperature and is incubated 1～2 hour, treats to make when dextrin presents light yellow, translucent the modified corn cereal binder.
Described preparation alkali lye step specifically comprises:
Take by weighing an amount of caustic soda, caustic soda is added in 50 ℃ the hot water, fully stir and make the caustic soda dissolving, make mass concentration and be 1.7～2.0% caustic soda soln;
The described alkali gelatinization step that adds specifically comprises:
Selecting granularity＞100 purpose corn flours for use, is that 18～20% ratio adds above-mentioned caustic soda soln according to the mass concentration of corn flour, and the limit adds the alkali lye limit stirs, and until the corn flour gelatinization, forms the heavy-gravity yellow jelly, i.e. the corn flour dextrin;
Described oxygenation modification procedure specifically comprises:
The adding mass concentration is 30% hydrogen peroxide solution in above-mentioned corn flour dextrin, the hydrogen peroxide solution that adds and the volume ratio of corn flour dextrin are 1: 50～1: 60, stir rapidly, make the reactive oxygen species in polymer organic composition such as starch in the corn flour dextrin, protein and the hydrogen peroxide, form carboxylic-acid and contain the oxygen functional group;
Described insulation hydrolysing step specifically comprises:
The corn flour dextrin that will add hydrogen peroxide places under 50 ℃ of temperature and is incubated 1～2 hour, make materials such as starch in the corn flour dextrin, protein continue to take place the oxygenation reaction, incomplete hydrolysis takes place simultaneously, increase solvability and flowability, treat that dextrin stirs to make the modified corn cereal binder when resistance reduces, presents light yellow, translucent.
The present invention is a raw material with corn flour, caustic soda, hydrogen peroxide, by preparation alkali lye, add several main operational steps such as alkali gelatinization, oxygenation modification, insulation hydrolysis, corn flour is converted into fertilizer granulation binding agent, and technology is simple.When the modified corn cereal binder of making was used for the fertilizer granulation, returning charge was few in the production process, granulating rate is high, epigranular, big, the anti-accumulating of product of hardness, and consumption is few, cost is low.
Specific embodiment:
As shown in Figure 1, comprise step:
Step 1, preparation alkali lye: caustic soda is dissolved in to make mass concentration in 50 ℃ the hot water be 1.7% caustic soda soln;
Preparation alkali lye step in the above-mentioned steps 1 specifically comprises:
Take by weighing 850 gram caustic soda, in caustic soda, add 50 liters 50 ℃ hot water, fully stir and make the caustic soda dissolving, make the caustic soda soln of mass concentration about 1.7%;
Step 2, add the alkali gelatinization: with above-mentioned caustic soda soln and granularity is that 100 purpose corn flours are puddled, and the mass concentration of corn flour is 18～20%, fully stirs and makes the corn flour gelatinization;
The alkali gelatinization step that adds in the above-mentioned steps 2 specifically comprises:
Taking by weighing 10 kilograms of granularities is 100 purpose corn flours, and adding 50 is gone up and stated caustic soda soln, and the limit adds the alkali lye limit stirs, and until the corn flour gelatinization, forms heavy-gravity yellow jelly matter, i.e. the corn flour dextrin;
Step 3, oxygenation modification: the adding mass concentration is 30% hydrogen peroxide solution in above-mentioned corn flour dextrin, and the volume ratio of the hydrogen peroxide solution of adding and corn flour dextrin is 1: 50, stirs rapidly;
Oxygenation modification procedure in the above-mentioned steps 3 specifically comprises:
Adding 1 mass per liter concentration is 30% hydrogen peroxide solution in above-mentioned 50 liters of corn flour dextrins, stir rapidly, make the reactive oxygen species in polymer organic composition such as starch in the corn flour dextrin, protein and the hydrogen peroxide, form carboxylic-acid and contain the oxygen functional group;
Step 4, insulation hydrolysis: the corn flour dextrin that will add hydrogen peroxide places under 50 ℃ of temperature and is incubated 1～2 hour, treats to make when dextrin presents light yellow, translucent the modified corn cereal binder.
Insulation hydrolysing step in the above-mentioned steps 4 specifically comprises:
The corn flour dextrin that will add hydrogen peroxide places under 50 ℃ of temperature and is incubated 1～2 hour, make materials such as starch in the corn flour dextrin, protein continue to take place the oxygenation reaction, incomplete hydrolysis takes place simultaneously, increase solvability and flowability, treat that dextrin stirs to make the modified corn cereal binder when resistance reduces, presents light yellow, translucent.
Concrete application example:
Adopting rotary drum prilling process, is 0.4% modified corn cereal binder mist projection granulating with mass concentration, produces granular organic fertilizer, for being ground to the 60 purpose northeast peats composed of rotten mosses and weathered coal mixture, is contrast with the Attapulgite binding agent of 12% consumption for the examination material.The result shows, uses the modified corn cereal binder to make granular organic fertilizer, and the returning charge amount significantly reduces, and granulating rate improves 40%, and the particle average hardness is brought up to 12N by 8N, and organic content improves 8%, and the fertilizer outward appearance that forms is good, uniform particles.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (2)
1. one kind is utilized corn flour to make the method for fertilizer granulation with binding agent, it is characterized in that, comprises step:
A, preparation alkali lye: caustic soda is dissolved in 50 ℃ the hot water, makes mass concentration and be 1.7～2.0% caustic soda soln;
B, add the alkali gelatinization: above-mentioned caustic soda soln and granularity are puddled more than or equal to 100 purpose corn flours, and the mass concentration of corn flour is 18～20%, fully stirs and makes the corn flour gelatinization, makes the corn flour dextrin;
C, oxygenation modification: the adding mass concentration is 30% hydrogen peroxide solution in above-mentioned corn flour dextrin, and the volume ratio of the hydrogen peroxide solution of adding and corn flour dextrin is 1: 50～1: 60, stirs;
D, insulation hydrolysis: the corn flour dextrin that will add hydrogen peroxide places under 50 ℃ of temperature and is incubated 1～2 hour, makes the modified corn cereal binder.
2. the corn flour that utilizes according to claim 1 is made the method for fertilizer granulation with binding agent, it is characterized in that:
In the described preparation alkali lye step, caustic soda is joined in the hot water, fully stir and make the caustic soda dissolving, make described caustic soda soln;
Described adding in the alkali gelatinization step, add described caustic soda soln in corn flour, the limit adds the alkali lye limit stirs, and until the corn flour gelatinization, forms the heavy-gravity yellow jelly;
In the described oxygenation modification procedure, in described corn flour dextrin, add hydrogen peroxide solution after, stir rapidly, make polymer organic composition and the reactive oxygen species in the hydrogen peroxide in the corn flour dextrin, the formation carboxylic-acid contains the oxygen functional group;
In the described insulation hydrolysing step, starch in the corn flour dextrin, protein continue to take place the oxygenation reaction, incomplete hydrolysis takes place simultaneously, increase solvability and flowability, when treating that dextrin stirs resistance and reduces, presents light yellow, translucent, promptly make described modified corn cereal binder.
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| CN2011101544292A CN102249809A (en) | 2011-06-09 | 2011-06-09 | Method for preparing adhesive for organic fertilizer granulation by using corn flour |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826893A (en) * | 2011-11-25 | 2012-12-19 | 中国科学院烟台海岸带研究所 | Organic-inorganic compound fertilizer binder and its preparation method |
| CN103011958A (en) * | 2012-12-13 | 2013-04-03 | 广西农垦明阳生化集团股份有限公司 | Compound fertilizer containing efficient binder and production method of composite fertilizer |
| CN115490556A (en) * | 2022-10-27 | 2022-12-20 | 云南云叶化肥股份有限公司 | Auxiliary additive beneficial to fertilizer disc granulation and preparation method thereof |
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| CN86105145A (en) * | 1986-08-09 | 1988-02-17 | 新疆石河子农学院 | The making method of Starch Adhesive |
| CN101302409A (en) * | 2007-05-09 | 2008-11-12 | 李延禄 | Cornstarch high-strength adhesive |
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2011
- 2011-06-09 CN CN2011101544292A patent/CN102249809A/en active Pending
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| CN86105145A (en) * | 1986-08-09 | 1988-02-17 | 新疆石河子农学院 | The making method of Starch Adhesive |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826893A (en) * | 2011-11-25 | 2012-12-19 | 中国科学院烟台海岸带研究所 | Organic-inorganic compound fertilizer binder and its preparation method |
| CN103011958A (en) * | 2012-12-13 | 2013-04-03 | 广西农垦明阳生化集团股份有限公司 | Compound fertilizer containing efficient binder and production method of composite fertilizer |
| CN103011958B (en) * | 2012-12-13 | 2016-04-27 | 广西农垦明阳生化集团股份有限公司 | A kind of composite fertilizer and production method containing highly effective binder |
| CN115490556A (en) * | 2022-10-27 | 2022-12-20 | 云南云叶化肥股份有限公司 | Auxiliary additive beneficial to fertilizer disc granulation and preparation method thereof |
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Application publication date: 20111123 |