CN110218116A - A kind of granular compound fertilizer adhesive for granulating and preparation method thereof - Google Patents
A kind of granular compound fertilizer adhesive for granulating and preparation method thereof Download PDFInfo
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- CN110218116A CN110218116A CN201910527596.3A CN201910527596A CN110218116A CN 110218116 A CN110218116 A CN 110218116A CN 201910527596 A CN201910527596 A CN 201910527596A CN 110218116 A CN110218116 A CN 110218116A
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- Prior art keywords
- granulating
- compound fertilizer
- tackifier
- adhesive
- thickener
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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
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- 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
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
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- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
The present invention relates to a kind of granular compound fertilizer adhesive for granulating and preparation method thereof.By mass percentage, the adhesive for granulating is made of following raw material: thickener 0.1-5%, tackifier 0.01-10%, stabilizer 1-5%, remaining is water.The adhesive for granulating in agitator tank the preparation method is as follows: inject a certain amount of water, the thickener and stabilizer of certain mass score is first added, stirring 30min or so is completely dissolved to it, then the tackifier of certain mass score are added, continue to stir 30-45min, until be completely dissolved can tinning for tackifier.When use, adhesive for granulating provided by the invention can substitute steam, whitewashing, clay of the addition in traditional granulation process etc., uniformly be sprayed at surface of material in the front end of pelletizing drum, easy to use, granulating rate is high, and the energy consumption during composite heat transfer and environmental pressure can be effectively reduced.
Description
Technical field
The invention belongs to compound fertilizer granulating technical field, in particular to a kind of granular compound fertilizer adhesive for granulating and its preparation
Method.
Background technique
Disclosing the information of the background technology part, it is only intended to increase understanding of the overall background of the invention, without certainty
It is considered as recognizing or implying in any form that information composition has become existing skill well known to persons skilled in the art
Art.
Compound fertilizer's roller granulation traditional at present uses clay, whitewashing and steam to assist being granulated.The addition of clay,
The effective content for reducing compound fertilizer limits the diversification of compound fertilizer formula, improves production cost；Slurry needs to heat,
And it is inconvenient to use, it is easy blocking pipeline；And steam then needs boiler to generate, there is some potential safety problems, energy consumption is high
And very big environmental protection pressure is brought to fertilizer production enterprise.
Currently, many enterprises are also beginning to use granulation aid to carry out assisted recombination fertilizer granulating, but still steaming is not all got rid of
The use of vapour.Patent CN106748322A discloses a kind of compound fertilizer of high concentration adhesive for granulating and preparation method thereof, uses
Inorganic component is combined with organic component, is added in pelletizer together with material in granulation process, under the action of steam may be used
Significantly to improve the granulating rate of compound fertilizer, but it still needs steam to assist being granulated, and the additive amount of binder is larger
(7.5-17.5%) is not suitable for the large-scale promotion in fertilizer industry.
Patent CN02115612.3 sugar series compound fertilizer adhesion agent discloses one kind and is suitble to various inorganic composite fertilizers, organic compound
The binder of fertilizer, it is made of sucrose or polysaccharose substance, carboxymethyl cellulose, calcium oxide, and adhesive property is good, and incorporation is only
Between 1-5%, cost is relatively low, can stablize fertilizer efficiency and be allowed to not volatile, and meeting water can decompose rapidly again, promotes plant growth.
A kind of method for preparing long-acting humic acid slow-release fertilizer of CN201811215931.8.Its step includes (1) by shaddock fruit
Skin and granular urea are dried；(2) a certain amount of bentonite and diatomite are weighed；(3) certain polyvinyl alcohol is matched again to make
It is granulated in pelletizer for binder；(4) it is dried in drying box；(5) adsorbents zeolite powder is added and matches one
Quantitative humic acid；(6) it is put into progress ball granulation in roller pelletizer；(7) secondary drying is carried out, it is cooling.Gained of the invention is slow
Nitrogenous fertilizer is released, because being mixed into pericarp in matrix reaches well ammonia effect admittedly, polyvinyl alcohol and humic acid membrane wrapping make slow release effect
Obviously, while to protect nitrogen fertilizer conservation effect good, and fertilizer efficiency is high, pollution-free to ecology.
Traditional prilling process needs a large amount of steam, not only increases the consumption of the energy, while protecting to our environment
Protecting band carrys out very big pressure.Increasing with environmental protection pressure, compound fertilizer's use of boiler in granulation process obtains more next
More limitation, so exploring new prilling process is particularly important.
Summary of the invention
For the material for replacing the auxiliary such as steam and clay in granulation process to be granulated, completely new the present invention provides one kind
Compound fertilizer granulating binder and preparation method thereof, different from adhesive for granulating before, granulation bonding provided by the invention
It is liquid under agent room temperature, use is directly sprayed in granulation process, steam, clay and whitewashing in granulation process can be replaced
High Deng, granulating rate, additive amount is few, and additive amount is 3% or so (5% or so of finished product compound fertilizer) of material, and will not be right
The drying system of composite fertilizer production line affects.
To realize the above-mentioned technical purpose, The technical solution adopted by the invention is as follows:
A kind of granular compound fertilizer adhesive for granulating, is made of the raw material of following parts by weight: thickener 0.1-5%, tackifier
0.01-10%, stabilizer 1-5%, remaining is water；
The application research discovery: the auxiliary agent of three types is combined, and can be obtained under lower additive amount preferably
Granulating effect, not only physical bond intensity is high, the property of liquid solution that is formed is stablized, and avoids keeping away in granulation process
Exempt to introduce excessive moisture.If only adding the auxiliary agent of one of type, then other conditions (such as steam, whitewashing, clay are needed
Deng) assist just it to be made to play a role.
Available thickener various types currently on the market, mainly there is inorganic thickening agent, cellulose family, polyacrylate
With four class of association type polyurethane thickener, but in the application, in order to obtain preferable granulating effect, it is preferred to use cellulose ether,
Natural polymer and synthesis high score subclass thickener, it is furthermore preferred that the thickener includes: polyvinylpyrrolidone, methyl fibre
Tie up element, hydroxypropyl methyl cellulose, sodium carboxymethylcellulose, hydroxyethyl cellulose, polyurethane, gelatin, xanthan gum, alginic acid
One of sodium, agar etc. are a variety of；
The main function of tackifier is the initial bonding strength and holding power for improving product；But the application research is found: for compound
For fertilizer is granulated, single tackifier are difficult to meet the forming requirements of fertilizer, and therefore, tackifier are intended only as auxiliary agent in the application
One kind, it is preferred that the tackifier include: polyvinyl alcohol, polyethylene glycol, polyacrylamide, rosin resin, white glue with vinyl, poly-
One of acrylate, guar gum etc. are a variety of；
The application research discovery: to obtain preferable granulating effect, in addition to viscosity with higher, it is also necessary to guarantee
Performance of the binder under aqueous solution, hot conditions is stablized, for this purpose, being additionally added a certain amount of stabilizer in the application.Meanwhile being
It cooperates with above-mentioned thickener and tackifier, the preferred stabilizer of the application includes: carboxymethyl cellulose, polyamide-acid ammonium
One of preparation, water-soluble biological polysaccharide, sodium alginate, Sodium Polyacrylate etc. are a variety of.
The application research discovery: if thickener additive amount is too small, the toughness of adhesive is insufficient, poor fluidity, if thickening
After agent additive amount reaches a certain critical value, tackifier dosage is continued growing, shear viscosity, the mobility of adhesive are promoted not
Greatly, therefore, in some embodiments, it is made of the raw material of following parts by weight: thickener 0.1-5%, tackifier 0.01-10%,
Stabilizer 1-5%, remaining is water.
In some embodiments, it is made of the raw material of following parts by weight: thickener 0.1-2.5%, tackifier 0.01-5%,
Stabilizer 1-2.5%, remaining is water.
In some embodiments, it is made of the raw material of following parts by weight: thickener 0.1-5%, tackifier 0.01-10%,
Stabilizer 1-5%, remaining is water.
The present invention also provides a kind of preparation methods of granular compound fertilizer adhesive for granulating, comprising:
Thickener and stabilizer are dissolved in water, tackifier are then added, is uniformly mixed, until tackifier are completely dissolved,
To obtain the final product.
Special restriction is not done to the mixed method of each auxiliary agent in the application, as long as can guarantee that solution is uniformly mixed i.e.
Can, but in view of the convenience and operability in actual production, in some embodiments, the mixed method is stirred for machinery
It mixes.
The application research discovery: if mixing speed is excessively high, thickening property can be destroyed, if but mixing speed it is too small, can not be complete
The full thickening effect for playing thickener, it is also difficult to guarantee the uniformity that thickener is mixed with water and other auxiliary agents, therefore, some
In embodiment, the stirring rate is 300-500r/min.
The present invention also provides a kind of compound fertilizers, comprising: compound fertilizer's material, any above-mentioned binder.
In some embodiments, the binder accounts for the 1-5wt% of compound fertilizer granulating material total amount.It can add lower
Preferable granulating effect is obtained under dosage, not only physical bond intensity is high, the property of the liquid solution of formation is stablized, and avoided
It to avoid introducing excessive moisture in granulation process.
The present invention also provides a kind of granular compound fertilizer prilling process, any above-mentioned binder are equably supported on multiple
Hefei surface of material, roller be granulated to get.
In some embodiments, the carrying method is that sprinkling or feeding port feed intake.
The beneficial effects of the present invention are:
(1) optimum amount of adhesive for granulating will not introduce excessive moisture to subsequent baking for the 1-5% for being granulated material
It is dry to bring pressure.
(2) the product comparison conventionally produced with enterprise by the appearance to products obtained therefrom, uses adhesive for granulating raw
The product of production in appearance and indistinction, can't change the appearance of product using adhesive for granulating.
(3) under the process conditions for not changing the other equipment in addition to Granulation Equipments, the water content and tradition of products obtained therefrom
Method water content remains basically stable, and complex fertilizer product water content will not be made to increase using adhesive for granulating.
(4) under the process conditions for not changing the other equipment in addition to Granulation Equipments, the granule strength of products obtained therefrom >=
15N is able to satisfy the normal production needs of enterprise completely.
(5) yield being granulated using adhesive for granulating is produced compared with enterprise's Traditional Method is granulated yield using adhesive for granulating
Amount is higher than Traditional Method granulation, this is because improving granulating rate.
(6) production steam, whitewashing bring energy consumption can be saved for enterprise by being granulated using adhesive for granulating, can be saved
The investment for removing boiler, spouting plant, is truly realized energy-saving and emission-reduction.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used in this application have logical with the application person of an ordinary skill in the technical field
The identical meanings understood.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
In the examples where no specific technique or condition is specified, according to the literature in the art described technology or conditions or
Person carries out according to product description.Reagents or instruments used without specified manufacturer, being can be by the normal of commercially available acquisition
Advise product.
As background technique is introduced, high, the seriously polluted problem for traditional prilling process energy consumption.Therefore, originally
First purpose of invention, is to provide a kind of compound fertilizer granulating binder of liquid.
The second object of the present invention is to provide the preparation method of above-mentioned adhesive for granulating.
The third object of the present invention is to provide the application method and application of above-mentioned adhesive for granulating.
For achieving the above object, the invention discloses following technical proposals:
Firstly, compound fertilizer granulating binder disclosed by the invention, by mass percentage, the bonding agent include following original
Material: thickener 0.1-5%, tackifier 0.01-10%, stabilizer 1-5%, remaining is water.
Further, the thickener includes: polyvinylpyrrolidone, methylcellulose, hydroxypropyl methyl cellulose, carboxylic
One of sodium carboxymethylcellulose pyce, hydroxyethyl cellulose, polyurethane, gelatin, xanthan gum, sodium alginate, agar etc. are a variety of.
Further, the tackifier include: polyvinyl alcohol, polyethylene glycol, polyacrylamide, rosin resin, white glue with vinyl,
One of polyacrylate, guar gum etc. are a variety of.
Further, the stabilizer includes: carboxymethyl cellulose, polyamide-acid ammonium preparation, water-soluble biological polysaccharide, sea
One of mosanom, Sodium Polyacrylate etc. are a variety of.
Secondly, the present invention discloses a kind of preparation method of the adhesive for granulating, it is specific as follows:
A certain amount of water is injected in agitator tank, the thickener and stabilizer of certain mass score is first added, and stirs 30min
Left and right is completely dissolved to it, and the tackifier of certain mass score are then added, and continues to stir 30-45min, until tackifier are completely molten
Solution can tinning.In entire whipping process, mixing speed is unsuitable too fast, is suitable for generally mixing speed in 300-500r/min
Too fast to generate excessive foam and be difficult to dissipate, it is uneven that mixing speed then will lead to the dissolution dispersion of part tackifier slowly excessively
It is even, difficulty is brought to using.
Finally, the present invention, which discloses the adhesive for granulating, is suitable for general roller granulated compound fertilizer, can substitute
Steam, clay, whitewashing etc. in roller granulation, not only reduce the production energy consumption of compound fertilizer, simultaneously because steam is no longer needed,
Very big environmental burden is alleviated to composite heat transfer enterprise.
It is described below by way of scheme of the specific embodiment to the application.
Wherein, white glue with vinyl is white glue with vinyl 930A, is purchased from Dongguan City trimerization adhesive Science and Technology Ltd., carboxymethyl cellulose
Sodium, xanthan gum, polyvinyl alcohol, sodium alginate, carboxymethyl cellulose are all commercial product.
Embodiment 1:
This industrial experimentation is carried out in Shandong Linyi middle peasant Shun day Eco-fertilizer industry Co., Ltd, and production equipment is rotary drum group
Grain method production technology, traditional comminution granulation are granulated using ureaformaldehyde (liquid), monoammonium phosphate slurry and steam, equipment and technique
Index parameter is as follows:
Pelletizer length: 7.4m pelletizer diameter: 2.2m
Drying kiln length: 28m drying kiln diameter: 2.4m
Cooling cylinder length: 28m cooling cylinder diameter: 2.2m
One, blender, one ton of each amount of agitation, intermittent feeding
Drying kiln temperature of kiln head: 180 DEG C of drying kiln kiln end temperatures: 55 DEG C
Package temperature after cooling: 40 DEG C
Pelletizer outlet mass temperatures: 55-60 DEG C
Factory formula are as follows: 28-6-6 (potassium sulfate type)
It is granulated steam additive amount: 40kg/T, ureaformaldehyde additive amount: 50kg/T, monoammonium slurry additive amount: 75kg/T, drying
Kiln inlet feed water content: 3.0%, finished product water content :≤1.5%.
Adhesive for granulating formula used are as follows:
Thickener: sodium carboxymethylcellulose 1%, xanthan gum 0.5%
Tackifier: polyvinyl alcohol 2%, white glue with vinyl 5%
Stabilizer: sodium alginate 1%, carboxymethyl cellulose 0.5%
Solvent: water 90%
The novel granular compound fertilizer adhesive for granulating industrial experimentation of the application: the examination of adhesive for granulating productivity is being carried out
When testing, ureaformaldehyde (liquid), monoammonium whitewashing and steam stop, N and P therein2O5Content is changed in feeding port by urea and phosphorus
Sour monoammonium feeds intake, and consumption of binder is 5% or so (the 3% of inventory) of production.
This production experiment test within one shift 8 hours, and wherein stable operation 5 hours, produce finished particle
10~11 tons/h, yield and enterprise's slurry-spraying pelletizing technique are fair or slightly higher (shotcreting process yield is in 70 tons/class or so), stablize fortune
Consumption of binder 5% (finished product radix) left and right after row, or run the 3% of inventory.Specific experiment the result is as follows:
Table 1, granulating agent are granulated the parameter that products obtained therefrom is granulated with Traditional Method
It summarizes
It can be seen from above-described embodiment that substituted with adhesive for granulating of the invention steam in traditional granulation process,
Whitewashing, clay etc. be it is feasible, under the process conditions for not changing the other equipment in addition to Granulation Equipments, use granulating agent
It is granulated the product for being entirely capable of producing and meeting enterprise's production standard, and yield is higher, energy consumption is less, more to environmentally friendly bring pressure
It is small, using more convenient.Adhesive for granulating of the invention is able to satisfy most of compound fertilizer's roller completely and is granulated needs, is more applicable in
In use of large-scale production.
Finally it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not limited to this hair
It is bright, although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still
It can modify to technical solution documented by previous embodiment, or part is equivalently replaced.It is all in this hair
Within bright spirit and principle, any modification, equivalent replacement, improvement and so on should be included in protection scope of the present invention
Within.Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not to the scope of the present invention
Limitation, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not required to
Make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (10)
1. a kind of granular compound fertilizer adhesive for granulating, which is characterized in that be made of the raw material of following parts by weight: thickener 0.1-
5%, tackifier 0.01-10%, stabilizer 1-5%, remaining is water；
The thickener include: polyvinylpyrrolidone, methylcellulose, hydroxypropyl methyl cellulose, sodium carboxymethylcellulose,
One of hydroxyethyl cellulose, polyurethane, gelatin, xanthan gum, sodium alginate, agar are a variety of；
The tackifier include: polyvinyl alcohol, polyethylene glycol, polyacrylamide, rosin resin, white glue with vinyl, polyacrylate, melon
One of your glue is a variety of；
The stabilizer includes: carboxymethyl cellulose, polyamide-acid ammonium preparation, water-soluble biological polysaccharide, sodium alginate, polyacrylic acid
One of sodium is a variety of.
2. binder as described in claim 1, which is characterized in that be made of the raw material of following parts by weight: thickener 0.1-
2.5%, tackifier 0.01-5%, stabilizer 1-2.5%, remaining is water.
3. binder as described in claim 1, which is characterized in that be made of the raw material of following parts by weight: thickener 2.5-
5%, tackifier 5-10%, stabilizer 2.5-5%, remaining is water.
4. a kind of preparation method of granular compound fertilizer adhesive for granulating characterized by comprising
Thickener and stabilizer are dissolved in water, tackifier are then added, be uniformly mixed, until tackifier be completely dissolved to get.
5. method as claimed in claim 4, which is characterized in that the mixed method is mechanical stirring.
6. method as claimed in claim 5, which is characterized in that the stirring rate is 300-500r/min.
7. a kind of compound fertilizer characterized by comprising compound fertilizer, the described in any item binders of claim 1-3.
8. compound fertilizer as claimed in claim 7, which is characterized in that the binder accounts for the 1- of compound fertilizer granulating material total amount
5wt%.
9. a kind of granular compound fertilizer prilling process, which is characterized in that equably by the described in any item binders of claim 1-3
Be supported on compound fertilizer's surface of material, roller be granulated to get.
10. method as claimed in claim 9, which is characterized in that the carrying method is that sprinkling or feeding port feed intake.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112403391A (en) * | 2020-10-16 | 2021-02-26 | 湖北三宁化工股份有限公司 | Binder for producing large-particle ammonium sulfate and preparation method thereof |
| CN113214022A (en) * | 2021-04-23 | 2021-08-06 | 湖北富邦科技股份有限公司 | Instant round-particle potash fertilizer granulation auxiliary agent and use method thereof |
| CN115043686A (en) * | 2022-06-06 | 2022-09-13 | 青海国润农业科技有限公司 | Regular round granular potash fertilizer granulation auxiliary agent and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112403391A (en) * | 2020-10-16 | 2021-02-26 | 湖北三宁化工股份有限公司 | Binder for producing large-particle ammonium sulfate and preparation method thereof |
| CN113214022A (en) * | 2021-04-23 | 2021-08-06 | 湖北富邦科技股份有限公司 | Instant round-particle potash fertilizer granulation auxiliary agent and use method thereof |
| CN115043686A (en) * | 2022-06-06 | 2022-09-13 | 青海国润农业科技有限公司 | Regular round granular potash fertilizer granulation auxiliary agent and preparation method thereof |
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