CN109456121A - Stable fertilizer and preparation method thereof - Google Patents
Stable fertilizer and preparation method thereof Download PDFInfo
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- CN109456121A CN109456121A CN201910024695.XA CN201910024695A CN109456121A CN 109456121 A CN109456121 A CN 109456121A CN 201910024695 A CN201910024695 A CN 201910024695A CN 109456121 A CN109456121 A CN 109456121A
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- inner core
- core particle
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-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- 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
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
-
- 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
- C05G3/90—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting the nitrification of ammonium compounds or urea in the soil
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Fertilizers (AREA)
Abstract
The present invention provides a kind of stable fertilizer and preparation method thereof.Stable fertilizer of the invention includes fertilizer inner core particle and the outsourcing membrane material for being wrapped in fertilizer inner core particle outer surface；The material of the fertilizer inner core particle includes following raw material based on parts by weight: 35~50 parts of urea, 30~40 parts of potassium chloride, 10~25 parts of monoammonium phosphate, 1.0~2.0 parts of dicyanodiamine, 2.0~4.0 parts of humic acid powder, 2.5~8.0 parts of attapulgite；The outsourcing membrane material includes the kaolinite soil layer for being attached to fertilizer inner core particle outer surface, the paraffin layer for being attached to kaolinite soil layer outer surface and the talcum bisque for being attached to the paraffin layer outer surface.Stable fertilizer of the invention is realized that rice transplanting fertilising is synchronous suitable for the synchronous rice transplanting fertilizer applicator of rice and is carried out, and has plant recovery of nutrient high, and cost is relatively low, and fertiliser granulates surface is smooth, non-breakable, the moisture absorption is not easy, the advantages that agglomeration.
Description
Technical field
The present invention relates to field of agricultural production technologies more particularly to a kind of stable fertilizer and preparation method thereof.
Background technique
Used with the raising of Tendency of Agricultural Machinery in Chinaization level, during Rice Cropping the area of mechanized application also by
Year increases.The synchronization rice transplanting fertilizing equipment for configuring fertilizer apparatus on the basis of rice transplanter at present is more in southern rice workspace
Fertilizer utilization efficiency can be improved using the rice transplanting fertilizing equipment of side deep fertilizing method while realizing Tree Precise Fertilization in ground application, section
Less manpower investment.
For farmer in rice transplanting fertilizing equipment synchronous using rice, the fertilizer type of configuration is various, both includes various simple substance
Fertilizer also has common on the market mixing fertilizer specially for paddy rice or formula fertilizer, and also there are many sustained release or stable fertilizers etc., but deposit
In different degrees of application drawback.
Traditional nitrogen-phosphorus-potassium compound fertilizer or compound fertilizer plant recovery of nutrient is lower, especially can not be long-term after the application of nitrogen nutrient
It keeps, traditional compound fertilizer often needs to apply fertilizer to four times three times on rice, after first machine rice transplantation fertilising, subsequent must also increase
Peasant labor force cost, nutrient loss also easily form agricultural non-point source pollution.
Existing film-coated controlled release fertilizer or slow release fertilizer product, coated fertilizer generally include sulphur, synthetic resin or
Other high-molecular compounds, coating higher cost are not suitable for applying on low value-added cereal crops, and its nutrients release speed
Rate is difficult to adapt to paddy growth nutrient demand curve.
Existing blending slow-release BB fertilizer or stable fertilizer product are deposited when applying on the synchronous rice transplanting fertilizing equipment of rice
The problems such as the moisture absorption bonds, fertiliser granulates are uneven, fertilizer dust is more, easily stifled choke fertilizer pipeline, fertilizer is caused to have some setbacks,
The problems such as fertilizer is uneven between different defertilizing tubes, in actual production, peasant need to often clear up fertilizer pipeline, reduce work effect
Rate greatly constrains application by peasants.
Summary of the invention
The purpose of the present invention, which first consists in, provides a kind of stable fertilizer, and compositing formula is reasonable, is suitble to paddy growth to feeding
The demand divided, Nitrifying inhibition rate is high, can sufficiently realize the effect of nitrogen nutrient long-acting slow-release；Product particle surface is smooth, no
Easily broken, anti-moisture absorption, agglomeration resistance ability are strong, and fertilizer is smooth during the rice transplanting fertilising of the synchronous rice transplanting fertilizer applicator of rice, are not easy
Stifled choke；It can be improved utilization rate of fertilizer, reduce fertilizer amount, improve rice yield.
The object of the invention is also to provide a kind of preparation method of aforementioned stable fertilizer, simple production process is made
Stable fertilizer have the above multiple advantages.
In order to achieve the above object, present invention firstly provides a kind of stable fertilizer, including fertilizer inner core particle and package
Outsourcing membrane material in fertilizer inner core particle outer surface；
The material of the fertilizer inner core particle includes following raw material based on parts by weight: 35~50 parts of urea, potassium chloride
30~40 parts, 10~25 parts of monoammonium phosphate, 1.0~2.0 parts of dicyanodiamine, 2.0~4.0 parts of humic acid powder, attapulgite 2.5~
8.0 part；
The outsourcing membrane material includes the kaolinite soil layer for being attached to fertilizer inner core particle outer surface, is attached to the kaolinite
The paraffin layer of soil layer outer surface and the talcum bisque for being attached to the paraffin layer outer surface.
Optionally, the mass ratio of the outsourcing membrane material and the fertilizer inner core particle is 1-2:100.
Optionally, in the outsourcing membrane material, the mass ratio of kaolinite soil layer, paraffin layer and talcum bisque is 30~45:15
~25:40~55.
Optionally, the material of the kaolinite soil layer is nano kaoline；The material of the talcum bisque is modified talc powder,
The modified talc powder is to be added to the talcum powder after titanate esters are modified, titanate esters and talcum powder in the modified talc powder
Mass ratio be 1-5:95-99.
Optionally, the raw material of the fertilizer inner core particle includes following raw material based on parts by weight: 37~47 parts of urea,
32~38 parts of potassium chloride, 13~22 parts of monoammonium phosphate, 1.2~1.8 parts of dicyanodiamine, 2.4~3.6 parts of humic acid powder, concave convex rod
3.0~6.0 parts of soil；
The mass ratio of the outsourcing membrane material and the fertilizer inner core particle is 1.2-1.8:100；
In the outsourcing membrane material, the mass ratio of kaolinite soil layer, paraffin layer and talcum bisque is 33~42:17~23:43
~52.
Optionally, the raw material of the fertilizer inner core particle includes following raw material based on parts by weight: 40~45 parts of urea,
34~36 parts of potassium chloride, 15~20 parts of monoammonium phosphate, 1.4~1.6 parts of dicyanodiamine, 2.7~3.2 parts of humic acid powder, concave convex rod
3.5~5.0 parts of soil；
The mass ratio of the outsourcing membrane material and the fertilizer inner core particle is 1.4-1.6:100；
In the outsourcing membrane material, the mass ratio of kaolinite soil layer, paraffin layer and talcum bisque is 35~40:18~21:45
~50.
Optionally, the raw material of the fertilizer inner core particle includes following raw material based on parts by weight: 41 parts of urea, chlorination
35 parts of potassium, 17 parts of monoammonium phosphate, 1.5 parts of dicyanodiamine, 3.0 parts of humic acid powder, 4.5 parts of attapulgite；
The mass ratio of the outsourcing membrane material and the fertilizer inner core particle is 1.5:100；
In the outsourcing membrane material, the mass ratio of kaolinite soil layer, paraffin layer and talcum bisque is 35:20:45.
The present invention also provides a kind of preparation methods of stable fertilizer as described above, comprising:
Each raw material of the fertilizer inner core particle is granulated by step 1 after mixing, obtains fertilizer inner core particle；
Step 2 successively wraps attached kaolinite soil layer, paraffin layer and talcum bisque in the outer surface of the fertilizer inner core particle,
Form outsourcing membrane material.
Optionally, the step 1 includes:
The urea of precise is placed in fusion tank by step 11, is heated to 133 DEG C -140 DEG C, is obtained molten urea；
The monoammonium phosphate of precise, potassium chloride, dicyanodiamine, humic acid, attapulgite are placed in mixing channel by step 12
In, be heated to 50 DEG C -60 DEG C it is spare；
The sequence of the step 11 and the step 12 can be adjusted or be carried out simultaneously；
The molten urea is added in the material of the mixing channel step 13, is uniformly mixed, obtains eutectic；
Step 14 is granulated the eutectic using slurry-spraying pelletizing technique, obtains fertilizer inner core particle.
Optionally, the step 2 includes:
The nano kaoline of precise is placed in container, water is added and is stirred, is heated to 90 DEG C -100 DEG C, obtains
Kaolin coating liquid；
The paraffin of precise is placed in container, 90 DEG C -100 DEG C is heated to, obtains melt paraffin；
In the attached kaolin coating liquid of the appearance bread of the fertilizer inner core particle, kaolinite soil layer is formed after dry, described
The attached melt paraffin of appearance bread of kaolinite soil layer forms paraffin layer after cooling；
Upper talcum powder is flutterred in the outer surface of the paraffin layer, forms talcum bisque.
Beneficial effects of the present invention:
Stable fertilizer of the invention realizes the synchronous progress of rice transplanting fertilising suitable for the synchronous rice transplanting fertilizer applicator of rice,
Compared with the existing fertilizer synchronized in rice transplanting fertilizer applicator for rice, stable fertilizer of the invention has following actively effect
Fruit:
(1) compositing formula of the nutrient of stable fertilizer of the present invention and stability substance is reasonable, is suitble to paddy growth to feeding
The demand divided, Nitrifying inhibition rate is higher, can sufficiently realize the effect of nitrogen nutrient long-acting slow-release；
(2) product particle surface is smooth, non-breakable, and anti-moisture absorption, agglomeration resistance ability are strong, in the synchronous rice transplanting fertilizer applicator of rice
Rice transplanting fertilising during fertilizer it is smooth, be not easy stifled choke, be convenient for mechanization of agriculture production operation；
(3) raw material Environmental Safety used in stable fertilizer of the present invention, degradation quickly, act on rice crop nonhazardous,
Meet current green agriculture production needs；
(4) cost of material of stable fertilizer of the present invention is low, is suitble to the lower field crop application of economic value added；
(5) in Rice Cropping, for existing fertilizer, can be improved utilization rate of fertilizer 15.6%~
27.8%, fertilizer amount 7.2%~10.6% is reduced, while improving rice yield 5.5%~8.1%.
The simple production process of the preparation method of stable fertilizer of the invention, stable fertilizer obtained have above more
Item advantage.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of the scope of the invention.
Fig. 1 is the Nitrogen Accumulation releasing curve diagram for the stable fertilizer that the embodiment of the present invention 1 provides；
Fig. 2 is the dynamic change schematic diagram of the Content of Nitrate-Nitrogen in Soil of different fertilizer processing.
Specific embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.Condition is not specified in embodiment
, according to normal conditions or the condition of manufacturer's suggestion carries out.Reagents or instruments used without specified manufacturer can be
The conventional products obtained by commercially available purchase.
Term as used herein:
" by ... preparation " it is synonymous with "comprising".Term "comprising" used herein, " comprising ", " having ", " containing "
Or its any other deformation, it is intended that cover non-exclusionism includes.For example, composition, step, method comprising listed elements,
Product or device are not necessarily limited to those elements, but may include not expressly listed other elements or such composition, step
Suddenly, method, product or the intrinsic element of device.
Conjunction " by ... form " exclude any element that do not point out, step or component.If in claim,
This phrase will make claim closed, so that it is not included the material in addition to the material of those descriptions, but relative
Except customary impurities.When phrase " by ... form " be rather than immediately following theme in the clause that appears in claim main body after
When, only it is limited to element described in the clause；Other elements be not excluded the claim as a whole it
Outside.
Equivalent, concentration or other values or parameter are excellent with range, preferred scope or a series of upper limit preferred values and lower limit
When the Range Representation that choosing value limits, this should be understood as specifically disclosing by any range limit or preferred value and any range
Any pairing of lower limit or preferred value is formed by all ranges, regardless of whether the range separately discloses.For example, when open
When range " 1~5 ", described range should be interpreted as including range " 1~4 ", " 1~3 ", " 1~2 ", " 1~2 and 4~
5 ", " 1~3 and 5 " etc..When numberical range is described herein, unless otherwise stated, otherwise the range is intended to include its end
Value and all integers and score in the range.
In these embodiments, unless otherwise specified, described part and percentage is by mass.
" mass parts " refer to the basic measurement unit for indicating the mass ratio relationship of multiple components, and 1 part can indicate arbitrary list
Position quality, can such as be expressed as 1g, may also indicate that 2.689g etc..If we say that the mass parts of component A are a parts, the matter of B component
Measuring part is b parts, then it represents that the quality of component A and the mass ratio a:b of B component.Alternatively, indicating that the quality of component A is aK, B group
The quality divided is bK (K is arbitrary number, indicates multiplying factor).It can not misread, unlike mass fraction, all components
The sum of mass parts be not limited to 100 parts of limitation.
"and/or" is used to indicate that one of illustrated situation or both may to occur, for example, A and/or B includes (A
And B) and (A or B)；
In addition, indefinite article "an" before element of the present invention or component and "one" quantitative requirement to element or component
(i.e. frequency of occurrence) unrestriction.Therefore "one" or "an" should be read as including one or at least one, and odd number
The element or component of form also include plural form, unless the obvious purport of the quantity refers to singular.
Present invention firstly provides a kind of stable fertilizer, including fertilizer inner core particle and it is wrapped in the fertilizer inner core
The outsourcing membrane material of grain outer surface；
The material of the fertilizer inner core particle includes following raw material based on parts by weight: 35~50 parts of urea, potassium chloride
30~40 parts, 10~25 parts of monoammonium phosphate, 1.0~2.0 parts of dicyanodiamine, 2.0~4.0 parts of humic acid powder, attapulgite 2.5~
8.0 part；
The outsourcing membrane material includes the kaolinite soil layer for being attached to fertilizer inner core particle outer surface, is attached to the kaolinite
The paraffin layer of soil layer outer surface and the talcum bisque for being attached to the paraffin layer outer surface.
The present invention collectively forms outsourcing membrane material using kaolinite soil layer, paraffin layer and talcum bisque, can be attached in reduction packet
On the basis of material cost, improves fertiliser granulates character, improve its anti-moisture absorption and agglomeration resistance ability；Meanwhile stabilization of the invention
After property fertilizer enters paddy field, preliminary solubility is higher, can sufficiently meet the nutrient demand of paddy growth early period, Nitrifying inhibition rate compared with
Height can effectively reduce Nitrogen Leaching risk, improve nitrogen plant recovery of nutrient.
Specifically, the mass ratio of the outsourcing membrane material and the fertilizer inner core particle is 1-2:100.
Specifically, the mass ratio of kaolinite soil layer, paraffin layer and talcum bisque is 30~45:15 in the outsourcing membrane material
~25:40~55.
Specifically, the technical indicator of the urea are as follows: nitrogen (N) content is greater than 46%, and Biuret Content is less than 1.5%.
Specifically, the technical indicator of the monoammonium phosphate are as follows: powdery 40-60 mesh, nitrogen (N) content are greater than 10%, phosphorus (P2O5)
Content is greater than 44%, reaches national agricultural standards requirement.
Specifically, the technical indicator of the potassium chloride are as follows: powdery 40-60 mesh, potassium (K2O) content is greater than 50%, reaches state
Family's agricultural standards requirement.
Specifically, the technical indicator of the attapulgite are as follows: 100 mesh of powdery, silicon (SiO2) content be greater than 46%.
Specifically, the technical indicator of the dicyanodiamine are as follows: powdery 40-60 mesh, relative density 1.40,209.5 DEG C of fusing point,
Property is stablized when dry, is dissolved in high temperature facile hydrolysis after water.
Specifically, the humic acid powder is the powdery humic acid that natural peat is obtained through industry extracting, total humic acid content
Greater than 50%, fulvic acid content is greater than 6%.
Specifically, the paraffin is extracted from certain distillates of petroleum, shale oil or other pitch mineral oil
A kind of hydrocarbon mixture, fusing point be 47~64 DEG C, density is lower, is soluble in a variety of nonpolar solvents, not soluble in water or methanol
Isopolarity solvent.
Specifically, the material of the kaolinite soil layer is nano kaoline, the nano kaoline refers to that kaolin raw ore passes through
It delaminates after chemical graft and extra-fine grinding manufactured nano-kaoline, the partial size of the nano kaoline is 1~100nm.
Preferably, the material of the talcum bisque be modified talc powder, the modified talc powder be added to titanate esters into
The modified talcum powder of row, the mass ratio of titanate esters and talcum powder is 1-5:95-99 in the modified talc powder.Preferably, institute
Stating the mass ratio of titanate esters and talcum powder in modified talc powder described in modified talc powder is 3:97.By using titanate esters to cunning
Mountain flour is modified, and can improve the interface binding power between talcum powder and paraffin layer, makes talcum bisque is uniform and firm to cover
It is placed on the paraffin layer outer surface.
Specifically, the monoammonium phosphate is also known as ammonium dihydrogen phosphate, it is a kind of white crystal, chemical formula NH4H2PO4。
In the present invention more preferably in technical solution, the raw material of the fertilizer inner core particle include it is following based on parts by weight
Raw material: 37~47 parts of urea, 32~38 parts of potassium chloride, 13~22 parts of monoammonium phosphate, 1.2~1.8 parts of dicyanodiamine, humic acid
2.4~3.6 parts of powder, 3.0~6.0 parts of attapulgite；
The mass ratio of the outsourcing membrane material and the fertilizer inner core particle is 1.2-1.8:100；
In the outsourcing membrane material, the mass ratio of kaolinite soil layer, paraffin layer and talcum bisque is 33~42:17~23:43
~52.
In the further preferred technical solution of the present invention, the raw material of the fertilizer inner core particle includes as follows with parts by weight
The raw material of number meter: 40~45 parts of urea, 34~36 parts of potassium chloride, 15~20 parts of monoammonium phosphate, 1.4~1.6 parts of dicyanodiamine, rotten
2.7~3.2 parts of phytic acid powder, 3.5~5.0 parts of attapulgite；
The mass ratio of the outsourcing membrane material and the fertilizer inner core particle is 1.4-1.6:100；
In the outsourcing membrane material, the mass ratio of kaolinite soil layer, paraffin layer and talcum bisque is 35~40:18~21:45
~50.
In technical solution of the invention most preferred, the raw material of the fertilizer inner core particle include it is following based on parts by weight
Raw material: 41 parts of urea, 35 parts of potassium chloride, 17 parts of monoammonium phosphate, 1.5 parts of dicyanodiamine, 3.0 parts of humic acid powder, attapulgite
4.5 part；
The mass ratio of the outsourcing membrane material and the fertilizer inner core particle is 1.5:100；
In the outsourcing membrane material, the mass ratio of kaolinite soil layer, paraffin layer and talcum bisque is 35:20:45.
Stable fertilizer of the invention realizes the synchronous progress of rice transplanting fertilising suitable for the synchronous rice transplanting fertilizer applicator of rice,
Compared with the existing fertilizer synchronized in rice transplanting fertilizer applicator for rice, stable fertilizer of the invention has following actively effect
Fruit:
(1) compositing formula of the nutrient of stable fertilizer of the present invention and stability substance is reasonable, is suitble to paddy growth to feeding
The demand divided, Nitrifying inhibition rate is higher, can sufficiently realize the effect of nitrogen nutrient long-acting slow-release；
(2) product particle surface is smooth, non-breakable, and anti-moisture absorption, agglomeration resistance ability are strong, in the synchronous rice transplanting fertilizer applicator of rice
Rice transplanting fertilising during fertilizer it is smooth, be not easy stifled choke, be convenient for mechanization of agriculture production operation；
(3) raw material Environmental Safety used in stable fertilizer of the present invention, degradation quickly, act on rice crop nonhazardous,
Meet current green agriculture production needs；
(4) cost of material of stable fertilizer of the present invention is low, is suitble to the lower field crop application of economic value added；
(5) in Rice Cropping, for existing fertilizer, can be improved utilization rate of fertilizer 15.6%~
27.8%, fertilizer amount 7.2%~10.6% is reduced, while improving rice yield 5.5%~8.1%.
The present invention also provides a kind of preparation methods of aforementioned stable fertilizer, comprising:
Each raw material of the fertilizer inner core particle is granulated by step 1 after mixing, obtains fertilizer inner core particle；
Step 2 successively wraps attached kaolinite soil layer, paraffin layer and talcum bisque in the outer surface of the fertilizer inner core particle,
Form outsourcing membrane material.
Specifically, the step 1 includes:
The urea of precise is placed in fusion tank by step 11, is heated to 133 DEG C -140 DEG C, is obtained molten urea；
The monoammonium phosphate of precise, potassium chloride, dicyanodiamine, humic acid, attapulgite are placed in mixing channel by step 12
In, be heated to 50 DEG C -60 DEG C it is spare；
The sequence of the step 11 and the step 12 can be adjusted or be carried out simultaneously；
The molten urea is added in the material of the mixing channel step 13, is uniformly mixed, obtains eutectic；
Step 14 is granulated the eutectic using slurry-spraying pelletizing technique, obtains fertilizer inner core particle.
Specifically, being granulated using slurry-spraying pelletizing machine to the eutectic in the step 14.
Preferably, the step 1 further include: step 15 sieves the fertilizer inner core particle using sieve, meets
The fertilizer inner core particle of Particle size requirements does not meet the fertilizer inner core particle of Particle size requirements for wrapping attached outsourcing membrane material in step 2
Mixing channel is returned after broken is re-used as raw material use.
Specifically, the step 2 includes:
The nano kaoline of precise is placed in container by step 21, and water is added and is stirred, is heated to 90 DEG C -100
DEG C, obtain kaolin coating liquid.
Specifically, the mass ratio of the nano kaoline and water is 80-90:10-20 in the step 21.
Preferably, in the step 21, the container for containing nano kaoline, which is placed in water-bath, to be heated.
The paraffin of precise is placed in container by step 22, is heated to 90 DEG C -100 DEG C, is obtained melt paraffin；
The sequence of the step 21 and the step 22 can be adjusted or be carried out simultaneously.
Step 23, the attached kaolin coating liquid of appearance bread in the fertilizer inner core particle form kaolinite soil layer after dry,
In the attached melt paraffin of appearance bread of the kaolinite soil layer, paraffin layer is formed after cooling.
Optionally, the step 23 sequentially forms kaolinite soil layer in the outer surface of the fertilizer inner core particle using seed-coating machine
With paraffin layer.Optionally, the seed-coating machine is bottom spraying type seed-coating machine.
Optionally, it in the step 23, after the attached kaolin coating liquid of appearance bread of the fertilizer inner core particle, uses
The mode of blowing keeps the kaolin coating liquid dry, to remove moisture therein.
Step 24 uniformly flutters upper talcum powder in the outer surface of the paraffin layer, forms talcum bisque.
The simple production process of the preparation method of stable fertilizer of the invention, stable fertilizer compositing formula obtained close
Reason is suitble to demand of the paddy growth to nutrient, and Nitrifying inhibition rate is higher, can sufficiently realize the effect of nitrogen nutrient long-acting slow-release
Fruit；Product particle surface is smooth, non-breakable, and anti-moisture absorption, agglomeration resistance ability are strong, applies in the rice transplanting of the synchronous rice transplanting fertilizer applicator of rice
Fertilizer is smooth during fertilizer, is not easy stifled choke, is convenient for mechanization of agriculture production operation；Raw material Environmental Safety, degradation is quick, to rice
Crop nonhazardous effect meets current green agriculture production needs；Cost of material is low, and the lower crop field of economic value added is suitble to make
Object application；It can be improved utilization rate of fertilizer, reduce fertilizer amount, while improving rice yield.
Stable fertilizer and preparation method thereof of the invention is described in detail in a manner of specific embodiment below.
Embodiment 1
The embodiment 1 provides a kind of stable fertilizer, including fertilizer inner core particle and is wrapped in the fertilizer inner core
The outsourcing membrane material of grain outer surface；The raw material of the fertilizer inner core particle includes following raw material based on parts by weight: 41 parts of urea,
35 parts of potassium chloride, 17 parts of monoammonium phosphate, 1.5 parts of dicyanodiamine, 3.0 parts of humic acid powder, 4.5 parts of attapulgite；
The mass ratio of the outsourcing membrane material and the fertilizer inner core particle is 1.5:100；
In the outsourcing membrane material, the mass ratio of kaolinite soil layer, paraffin layer and talcum bisque is 35:20:45；
The material of the talcum bisque is modified talc powder, and the modified talc powder includes: 3 parts of titanate esters, talcum powder 97
Part.
The stable fertilizer that the embodiment 1 provides is the most preferred embodiment of stable fertilizer of the present invention.
Fig. 1 is the Nitrogen Accumulation releasing curve diagram for the stable fertilizer that the embodiment of the present invention 1 provides, it will be seen from figure 1 that
Stable fertilizer of the invention is able to achieve higher preliminary solubility under the conditions of 20 DEG C, 30 DEG C, 40 DEG C of three kinds of temperature, sufficiently
Meet the nutrient demand of paddy growth early period, and be able to achieve the effect of nitrogen long-acting slow-release, improves utilization rate of fertilizer.
Fig. 2 is the nitrified nitrogen in soil (NO of different fertilizer processing3 -- N) content dynamic change schematic diagram, in described Fig. 2,
" CK Common compound fertilizer " indicates existing Common compound fertilizer, and " machine applies dedicated stability fertilizer " refers to that the embodiment of the present invention 1 provides
Stable fertilizer, figure it is seen that compared with existing Common compound fertilizer, stability fertilizer that the embodiment of the present invention 1 provides
Expect that nitrification nitrogen content is lower in the soil of processing, in other words Nitrifying inhibition rate is higher.Since paddy growth is in the process to ammonium state
The demand of nitrogen is larger, therefore higher Nitrifying inhibition rate can significantly inhibit ammonium nitrogen and convert to nitrate nitrogen, to promote water
Absorption of the rice to nitrogen, and then promote paddy growth.
Embodiment 2
The embodiment 2 provides a kind of stable fertilizer, and compared with Example 1, difference place is, the outsourcing membrane material
In, the mass ratio of kaolinite soil layer, paraffin layer and talcum bisque is 52.5:30:67.5.
Embodiment 3
The embodiment 3 provides a kind of stable fertilizer, and compared with Example 1, difference place is, the fertilizer inner core
The raw material of grain includes following raw material based on parts by weight: 45 parts of urea, 30 parts of potassium chloride, and 16 parts of monoammonium phosphate, dicyanodiamine
1.8 parts, 3.6 parts of humic acid powder, 3.6 parts of attapulgite；
The mass ratio of the outsourcing membrane material and the fertilizer inner core particle is 1.775:100；
In the outsourcing membrane material, the mass ratio of kaolinite soil layer, paraffin layer and talcum bisque is 62.5:40:75.
Embodiment 4
The embodiment 4 provides a kind of stable fertilizer, and compared with Example 1, difference place is, the fertilizer inner core
The raw material of grain includes following raw material based on parts by weight: 48 parts of urea, 28 parts of potassium chloride, and 14 parts of monoammonium phosphate, dicyanodiamine
1.9 parts, 3.8 parts of humic acid powder, 4.3 parts of attapulgite；
The mass ratio of the outsourcing membrane material and the fertilizer inner core particle is 1.825:100；
In the outsourcing membrane material, the mass ratio of kaolinite soil layer, paraffin layer and talcum bisque is 67.5:45:70.
Embodiment 5
The embodiment 5 provides a kind of stable fertilizer, and compared with Example 1, difference place is, the fertilizer inner core
The raw material of grain includes following raw material based on parts by weight: 40 parts of urea, 32 parts of potassium chloride, and 20 parts of monoammonium phosphate, dicyanodiamine
1.4 parts, 2.8 parts of humic acid powder, 3.8 parts of attapulgite；
The mass ratio of the outsourcing membrane material and the fertilizer inner core particle is 1.475:100；
In the outsourcing membrane material, the mass ratio of kaolinite soil layer, paraffin layer and talcum bisque is 55:30:62.5.
Embodiment 6
The embodiment 6 provides a kind of stable fertilizer, and compared with Example 1, difference place is, the fertilizer inner core
The raw material of grain includes following raw material based on parts by weight: 35 parts of urea, 34.5 parts of potassium chloride, and 25 parts of monoammonium phosphate, dicyan two
1.0 parts of amine, 2.0 parts of humic acid powder, 2.5 parts of attapulgite；
The mass ratio of the outsourcing membrane material and the fertilizer inner core particle is 1.1:100；
In the outsourcing membrane material, the mass ratio of kaolinite soil layer, paraffin layer and talcum bisque is 35:20:55.
Embodiment 7
The embodiment 7 provides a kind of stable fertilizer, and compared with Example 1, difference place is, the fertilizer inner core
The raw material of grain includes following raw material based on parts by weight: 37 parts of urea, 40 parts of potassium chloride, and 12 parts of monoammonium phosphate, dicyanodiamine
1.0 parts, 2.0 parts of humic acid powder, 8.0 parts of attapulgite；
The mass ratio of the outsourcing membrane material and the fertilizer inner core particle is 1.375:100；
In the outsourcing membrane material, the mass ratio of kaolinite soil layer, paraffin layer and talcum bisque is 45:27.5:65.
Embodiment 8
The embodiment 8 provides a kind of stable fertilizer, and compared with Example 1, difference place is, the fertilizer inner core
The raw material of grain includes following raw material based on parts by weight: 50 parts of urea, 32 parts of potassium chloride, and 10 parts of monoammonium phosphate, dicyanodiamine
2.0 parts, 4.0 parts of humic acid powder, 4.0 parts of attapulgite；
The mass ratio of the outsourcing membrane material and the fertilizer inner core particle is 1.975:100；
In the outsourcing membrane material, the mass ratio of kaolinite soil layer, paraffin layer and talcum bisque is 75:40:82.5.
Embodiment 9
The embodiment 9 provides a kind of preparation method of stable fertilizer that embodiment 1 is recorded, comprising:
Step 1 prepares fertilizer inner core particle；
Step 2, the attached outsourcing membrane material of appearance bread in the fertilizer inner core particle.
Specifically, the step 1 includes:
The urea of precise is placed in fusion tank by step 11, is heated to 137 DEG C, is obtained molten urea；
The monoammonium phosphate of precise, potassium chloride, dicyanodiamine, humic acid, attapulgite are placed in mixing channel by step 12
In, be heated to 55 DEG C it is spare；
The molten urea is added in the material of the mixing channel step 13, is uniformly mixed, obtains eutectic；
Step 14 is granulated the eutectic using slurry-spraying pelletizing technique, obtains fertilizer inner core particle；
Step 15 sieves the fertilizer inner core particle using sieve, meets the fertilizer inner core particle of Particle size requirements
For wrapping attached outsourcing membrane material in step 2, do not meet Particle size requirements fertilizer inner core particle it is broken after return to mixing channel and make again
For raw material use.
In the step 14, the eutectic is granulated by the way of slurry-spraying pelletizing.
The step 2 includes:
The nano kaoline of precise is placed in container by step 21, and water is added and is stirred, is heated to 95 DEG C, obtains
To kaolin coating liquid.
In the step 21, the mass ratio of nano kaoline and water is 85:15, and the container for containing nano kaoline is placed in water
It is heated in bath.
The paraffin of precise is placed in container by step 22, is heated to 90 DEG C -100 DEG C, is obtained melt paraffin.
Step 23, the attached kaolin coating liquid of appearance bread in the fertilizer inner core particle form kaolinite soil layer after dry,
In the attached melt paraffin of appearance bread of the kaolinite soil layer, paraffin layer is formed after cooling.
The step 23 sequentially forms kaolinite soil layer in the outer surface of the fertilizer inner core particle using bottom spraying type seed-coating machine
With paraffin layer.
In the step 23, after the attached kaolin coating liquid of appearance bread of the fertilizer inner core particle, using blowing
Mode keeps the kaolin coating liquid dry, to remove moisture therein.
Step 24 uniformly flutters upper talcum powder in the outer surface of the paraffin layer, forms talcum bisque.
The numberical range of each technological parameter as involved in the present invention can not all embody in the above-described embodiments,
As long as but those skilled in the art's envisioned any numerical value fallen into the above-mentioned numberical range completely can be implemented this
Invention also includes any combination of occurrence in several numberical ranges certainly.Herein, due to space considerations, be omitted to
Out in certain one or more numberical range occurrence embodiment, this disclosure for being not to be construed as technical solution of the present invention do not fill
Point.
The Applicant declares that the present invention is explained by the above embodiments detailed process equipment and process flow of the invention,
But the present invention is not limited to the above detailed process equipment and process flow, that is, it is above-mentioned detailed not mean that the present invention must rely on
Process equipment and process flow could be implemented.It should be clear to those skilled in the art, any improvement in the present invention,
Addition, concrete mode selection of equivalence replacement and auxiliary element to each raw material of product of the present invention etc., fall in protection of the invention
In range.
Claims (10)
1. a kind of stable fertilizer, which is characterized in that including fertilizer inner core particle and be wrapped in outside the fertilizer inner core particle
The outsourcing membrane material on surface；
The material of the fertilizer inner core particle includes following raw material based on parts by weight: 35~50 parts of urea, potassium chloride 30~
40 parts, 10~25 parts of monoammonium phosphate, 1.0~2.0 parts of dicyanodiamine, 2.0~4.0 parts of humic acid powder, attapulgite 2.5~8.0
Part；
The outsourcing membrane material includes the kaolinite soil layer for being attached to fertilizer inner core particle outer surface, is attached to the kaolinite soil layer
The paraffin layer of outer surface and the talcum bisque for being attached to the paraffin layer outer surface.
2. stable fertilizer as described in claim 1, which is characterized in that the outsourcing membrane material and the fertilizer inner core particle
Mass ratio is 1-2:100.
3. stable fertilizer as described in claim 1, which is characterized in that in the outsourcing membrane material, kaolinite soil layer, paraffin layer with
And the mass ratio of talcum bisque is 30~45:15~25:40~55.
4. stable fertilizer as described in claim 1, which is characterized in that the material of the kaolinite soil layer is nano kaoline；
The material of the talcum bisque is modified talc powder, and the modified talc powder is to be added to the talcum after titanate esters are modified
Powder, the mass ratio of titanate esters and talcum powder is 1-5:95-99 in the modified talc powder.
5. stable fertilizer as described in claim 1, which is characterized in that the raw material of the fertilizer inner core particle include as follows with
The raw material of parts by weight meter: 37~47 parts of urea, 32~38 parts of potassium chloride, 13~22 parts of monoammonium phosphate, dicyanodiamine 1.2~
1.8 parts, 2.4~3.6 parts of humic acid powder, 3.0~6.0 parts of attapulgite；
The mass ratio of the outsourcing membrane material and the fertilizer inner core particle is 1.2-1.8:100；
In the outsourcing membrane material, the mass ratio of kaolinite soil layer, paraffin layer and talcum bisque is 33~42:17~23:43~52.
6. stable fertilizer as claimed in claim 5, which is characterized in that the raw material of the fertilizer inner core particle include as follows with
The raw material of parts by weight meter: 40~45 parts of urea, 34~36 parts of potassium chloride, 15~20 parts of monoammonium phosphate, dicyanodiamine 1.4~
1.6 parts, 2.7~3.2 parts of humic acid powder, 3.5~5.0 parts of attapulgite；
The mass ratio of the outsourcing membrane material and the fertilizer inner core particle is 1.4-1.6:100；
In the outsourcing membrane material, the mass ratio of kaolinite soil layer, paraffin layer and talcum bisque is 35~40:18~21:45~50.
7. stable fertilizer as claimed in claim 6, which is characterized in that the raw material of the fertilizer inner core particle include as follows with
The raw material of parts by weight meter: 41 parts of urea, 35 parts of potassium chloride, 17 parts of monoammonium phosphate, 1.5 parts of dicyanodiamine, humic acid powder 3.0
Part, 4.5 parts of attapulgite；
The mass ratio of the outsourcing membrane material and the fertilizer inner core particle is 1.5:100；
In the outsourcing membrane material, the mass ratio of kaolinite soil layer, paraffin layer and talcum bisque is 35:20:45.
8. a kind of preparation method of stable fertilizer as described in any one of claim 1 to 7 characterized by comprising
Each raw material of the fertilizer inner core particle is granulated by step 1 after mixing, obtains fertilizer inner core particle；
Step 2 successively wraps attached kaolinite soil layer, paraffin layer and talcum bisque in the outer surface of the fertilizer inner core particle, is formed
Outsourcing membrane material.
9. the preparation method of stable fertilizer as claimed in claim 8, which is characterized in that the step 1 includes:
The urea of precise is placed in fusion tank by step 11, is heated to 133 DEG C -140 DEG C, is obtained molten urea；
The monoammonium phosphate of precise, potassium chloride, dicyanodiamine, humic acid, attapulgite are placed in mixing channel by step 12,
Be heated to 50 DEG C -60 DEG C it is spare；
The sequence of the step 11 and the step 12 can be adjusted or be carried out simultaneously；
The molten urea is added in the material of the mixing channel step 13, is uniformly mixed, obtains eutectic；
Step 14 is granulated the eutectic using slurry-spraying pelletizing technique, obtains fertilizer inner core particle.
10. the preparation method of stable fertilizer as claimed in claim 8, which is characterized in that the step 2 includes:
The nano kaoline of precise is placed in container, water is added and is stirred, is heated to 90 DEG C -100 DEG C, obtains kaolinite
Native coating liquid；
The paraffin of precise is placed in container, 90 DEG C -100 DEG C is heated to, obtains melt paraffin；
In the attached kaolin coating liquid of the appearance bread of the fertilizer inner core particle, kaolinite soil layer is formed after dry, in the kaolinite
The attached melt paraffin of appearance bread of soil layer forms paraffin layer after cooling；
Upper talcum powder is flutterred in the outer surface of the paraffin layer, forms talcum bisque.
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| CN201910024695.XA CN109456121A (en) | 2019-01-10 | 2019-01-10 | Stable fertilizer and preparation method thereof |
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|---|---|---|---|
| CN201910024695.XA CN109456121A (en) | 2019-01-10 | 2019-01-10 | Stable fertilizer and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111205147A (en) * | 2020-01-20 | 2020-05-29 | 广东省农业科学院农业资源与环境研究所 | Stable fertilizer for planting sugarcane and preparation method thereof |
| CN116427044A (en) * | 2022-04-26 | 2023-07-14 | 扬州锦茂新材料科技有限公司 | Antibacterial fiber with high color stability and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408277A (en) * | 2011-09-02 | 2012-04-11 | 史丹利化肥股份有限公司 | Hightower pelletization slow-release long-acting high-phosphorus sulfenyl compound fertilizer and preparation method thereof |
| US9688586B1 (en) * | 2016-09-11 | 2017-06-27 | Aicardo Roa-Espinosa | Modified fertilizer and a method of manufacturing thereof |
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2019
- 2019-01-10 CN CN201910024695.XA patent/CN109456121A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408277A (en) * | 2011-09-02 | 2012-04-11 | 史丹利化肥股份有限公司 | Hightower pelletization slow-release long-acting high-phosphorus sulfenyl compound fertilizer and preparation method thereof |
| US9688586B1 (en) * | 2016-09-11 | 2017-06-27 | Aicardo Roa-Espinosa | Modified fertilizer and a method of manufacturing thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111205147A (en) * | 2020-01-20 | 2020-05-29 | 广东省农业科学院农业资源与环境研究所 | Stable fertilizer for planting sugarcane and preparation method thereof |
| CN116427044A (en) * | 2022-04-26 | 2023-07-14 | 扬州锦茂新材料科技有限公司 | Antibacterial fiber with high color stability and preparation method thereof |
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