CN107141136A - Solid energy fertilizer of a kind of double-core and preparation method thereof - Google Patents
Solid energy fertilizer of a kind of double-core and preparation method thereof Download PDFInfo
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- CN107141136A CN107141136A CN201710532197.7A CN201710532197A CN107141136A CN 107141136 A CN107141136 A CN 107141136A CN 201710532197 A CN201710532197 A CN 201710532197A CN 107141136 A CN107141136 A CN 107141136A
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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
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
-
- 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
- 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
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Abstract
The invention discloses a kind of solid energy fertilizer of double-core, it is formulated by the raw material of following parts by weight：33 50 parts of urea, 13 44 parts of MAP, 20 44 parts of potassium sulfate, 10 12 parts of sodium sulphate, 12 parts of inhibitor, middle micro- 1 part, 12 parts of potassium fulvate, 12 parts of humic acid；The inhibitor includes nitrification inhibitor and urease inhibitor, and the ratio of nitrification inhibitor and urease inhibitor is 1：1.Its preparation method comprises the following steps：Prepare masterbatch；Nutriment processing；Material is mixed；Granulation and cooling；Coating and screening.The fertilizer of the present invention can slowly be converted to appropriate nitrate nitrogen in soil and ammonium nitrogen supply crop absorbs, excessive nitrate nitrogen and ammonium nitrogen is prevented to be leached in deep soil and underground water, the accumulation of nitrate in soil can be reduced, so as to reach the purpose of the utilization rate for improving nitrogenous fertilizer and reduction underground water pollution.
Description
Technical field
Present invention relates particularly to solid energy fertilizer of a kind of double-core and preparation method thereof.
Background technology
Compound fertilizer refers to the chemical fertilizer containing two or more nutrient, and composite fertilizer has nutrient content high, secondary
Composition is few and the advantages of good physical behavior, for balance fertilizing, improves utilization rate of fertilizer, promoting the stable high yield of crop has ten
Divide important effect.
Nitrate fertilizer, ammonium fertilizer and acyl ammoniacal nitrogen fertilizer belong to composite fertilizer, and wherein nitrate fertilizer and ammonium fertilizer is to plant
Thing absorbs two kinds of principal modes of nitrogen, and acyl ammoniacal nitrogen is that nitrate fertilizer or ammonium fertilizer can be inhaled by crop by microorganism conversion
Receive, the nitrogenous fertilizer during composite fertilizer is manured into soil in the market only has 30% -50% to be absorbed by plants, and remainder is because of a variety of originals
Thus lose, wherein topmost reason is ammonium fertilizer and acyl ammoniacal nitrogen fertilizer is too fast in the presence of nitrobacteria is converted into nitre
State nitrogen.
The northern dry farming salinization of soil is than more serious, and the nitrogenous fertilizer of application will be converted into nitre state in soil after 1-2 weeks
Nitrogen, because crop all can not possibly absorb in time, can be leached into deep soil and underground water if by rainwater or flood irrigation, enter
And underground water is polluted.Therefore, how research controls the nitrification speeds of soil ammonium-state fertilizer and acyl ammoniacal nitrogen fertilizer, to subtracting
Pollution caused by few excessive Nitrate Nitrogen Residue of soil is significant.
The content of the invention
It is an object of the invention to overcome the shortcoming of prior art there is provided a kind of double-core it is solid can fertilizer and preparation method thereof, with
Solve existing ammonium fertilizer and acyl ammoniacal nitrogen fertilizer too fast can be converted into nitrate nitrogen and ammonium nitrogen in soil, easily be leached depth
In layer soil and groundwater, cause the utilization rate of nitrogenous fertilizer relatively low and underground water pollution technical problem.
To achieve the above object, the technical solution used in the present invention is：
On the one hand there is provided a kind of solid energy fertilizer of double-core, it is formulated by the raw material of following parts by weight：
33-50 parts of urea, 13-44 parts of MAP, 20-44 parts of potassium sulfate, 10-12 parts of sodium sulphate, 1-2 parts of inhibitor,
Middle micro- 1-2 parts, 1-2 parts of potassium fulvate, 1-2 parts of humic acid；
The inhibitor includes nitrification inhibitor and urease inhibitor, and the ratio of nitrification inhibitor and urease inhibitor is 1：
1。
Preferably, being formulated by the raw material of following parts by weight：
50 parts of urea, 16 parts of MAP, 20 parts of potassium sulfate, 10 parts of sodium sulphate, 1 part of inhibitor, middle micro- 1 part,
2 parts of potassium fulvate, 2 parts of humic acid.
Preferably, the nitrification inhibitor is dicyandiamide.
Preferably, the urease inhibitor is METHYLPYRROLIDONE.
On the other hand there is provided a kind of solid preparation method that can be fertile of double-core, it is characterised in that comprises the following steps,
S1, prepares masterbatch：Nitrification inhibitor, urease inhibitor, middle trace element and humic acid are well mixed, mother is made
Material；
S2, nutriment processing：Urea, MAP and potassium sulfate are distinguished into premenstrual workshop section to crush, and cross 2mm sieves respectively and is carried out
Screening metering；Urea after screening is sent into urea melting device, potassium sulfate feeding first-stage tank, MAP feeding second-level groove, urine
Temperature in plain melting device is maintained at 120-125 DEG C；
S3, material mixing：Masterbatch is sent into first-stage tank in the lump with spiral metering in Ta Xiaqian workshop sections with potassium sulfate, while
Potassium fulvate is sent into first order reaction groove with spiral metering at tower upper level groove, obtained all materials feeding second-level groove is carried out
Mixed material is made with well mixed in strong stirring；
S4, granulation and cooling：Fertiliser granulates are made through comminutor granulation in mixed material, fertiliser granulates are carried out by high tower
Tower cooling treatment, fertiliser granulates fall to be scraped by scraper in bottom of towe to be sieved into cooling cylinder, is cooled down subsequently into powder flow cooler
Processing；
S5, coating and screening：Fertiliser granulates carry out coating and regrading, last metering packing after cooler comes out
.Preferably, the temperature in the S2 steps in urea melting device is maintained at 123 DEG C.
Beneficial effects of the present invention are：
1st, the hydrolysis of urea in being manured into soil is that ammonium nitrogen is made for thing absorption by urase of the present invention, and urease inhibitor can press down
The speed of urase processed hydrolysis urea to reduce volatilization and the nitrification of ammonium nitrogen, nitrification inhibitor can suppress soil ammonium-state to
Nitrogen conversion is nitrified, two kinds of inhibitor, which are used cooperatively, can delay the speed of hydrolysis of urea and nitrification.Potassium fulvate can be in soil
Colloid substance is formed, water-stable granule in soil can be increased, coordinates the water, fertilizer, air and heat situation of soil；Humic acid has fertilizer
Expect synergy, improved soil, stimulate plant growth, improve the functions such as agricultural product quality.
In summary, fertilizer of the invention can slowly be converted to appropriate nitrate nitrogen and ammonium nitrogen supply in soil
Crop absorbs, and prevents excessive nitrate nitrogen and ammonium nitrogen to be leached in deep soil and underground water, can reduce nitre in soil
The accumulation of hydrochlorate, so as to reach the purpose of the utilization rate for improving nitrogenous fertilizer and reduction underground water pollution.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention pair
Technical solution of the present invention is clearly and completely described.
Embodiment 1：On the one hand there is provided a kind of solid energy fertilizer of double-core, it is formulated by the raw material of following parts by weight：
50 parts of urea, 16 parts of MAP, 20 parts of potassium sulfate, 10 parts of sodium sulphate, 1 part of inhibitor, middle micro- 1 part,
2 parts of potassium fulvate, 2 parts of humic acid；The inhibitor includes nitrification inhibitor and urease inhibitor, nitrification inhibitor and urase suppression
The ratio of preparation is 1：1.
On the other hand there is provided a kind of solid preparation method that can be fertile of double-core, it is characterised in that comprises the following steps,
S1, prepares masterbatch：Nitrification inhibitor, urease inhibitor, middle trace element and humic acid are well mixed, mother is made
Material；
S2, nutriment processing：Urea, MAP and potassium sulfate are distinguished into premenstrual workshop section to crush, and cross 2mm sieves respectively and is carried out
Screening metering；Urea after screening is sent into urea melting device, potassium sulfate feeding first-stage tank, MAP feeding second-level groove, urine
Temperature in plain melting device is maintained at 120 DEG C；
S3, material mixing：Masterbatch is sent into first-stage tank in the lump with spiral metering in Ta Xiaqian workshop sections with potassium sulfate, while
Potassium fulvate is sent into first order reaction groove with spiral metering at tower upper level groove, obtained all materials feeding second-level groove is carried out
Mixed material is made with well mixed in strong stirring；
S4, granulation and cooling：Fertiliser granulates are made through comminutor granulation in mixed material, fertiliser granulates are carried out by high tower
Tower cooling treatment, fertiliser granulates fall to be scraped by scraper in bottom of towe to be sieved into cooling cylinder, is cooled down subsequently into powder flow cooler
Processing；
S5, coating and screening：Fertiliser granulates carry out coating and regrading, last metering packing after cooler comes out
.
Embodiment 2：On the one hand there is provided a kind of solid energy fertilizer of double-core, it is formulated by the raw material of following parts by weight：
33 parts of urea, 13 parts of MAP, 20 parts of potassium sulfate, 10 parts of sodium sulphate, 1 part of inhibitor, middle micro- 1 part,
1 part of potassium fulvate, 1 part of humic acid；The inhibitor includes nitrification inhibitor and urease inhibitor, nitrification inhibitor and urase suppression
The ratio of preparation is 1：1.
On the other hand there is provided a kind of solid preparation method that can be fertile of double-core, it is characterised in that comprises the following steps,
S1, prepares masterbatch：Nitrification inhibitor, urease inhibitor, middle trace element and humic acid are well mixed, mother is made
Material；
S2, nutriment processing：Urea, MAP and potassium sulfate are distinguished into premenstrual workshop section to crush, and cross 2mm sieves respectively and is carried out
Screening metering；Urea after screening is sent into urea melting device, potassium sulfate feeding first-stage tank, MAP feeding second-level groove, urine
Temperature in plain melting device is maintained at 120 DEG C；
S3, material mixing：Masterbatch is sent into first-stage tank in the lump with spiral metering in Ta Xiaqian workshop sections with potassium sulfate, while
Potassium fulvate is sent into first order reaction groove with spiral metering at tower upper level groove, obtained all materials feeding second-level groove is carried out
Mixed material is made with well mixed in strong stirring；
S4, granulation and cooling：Fertiliser granulates are made through comminutor granulation in mixed material, fertiliser granulates are carried out by high tower
Tower cooling treatment, fertiliser granulates fall to be scraped by scraper in bottom of towe to be sieved into cooling cylinder, is cooled down subsequently into powder flow cooler
Processing；
S5, coating and screening：Fertiliser granulates carry out coating and regrading, last metering packing after cooler comes out
.
Embodiment 3：On the one hand there is provided a kind of solid energy fertilizer of double-core, it is formulated by the raw material of following parts by weight：
50 parts of urea, 44 parts of MAP, 44 parts of potassium sulfate, 12 parts of sodium sulphate, 2 parts of inhibitor, middle micro- 1 part,
2 parts of potassium fulvate, 2 parts of humic acid；The inhibitor includes nitrification inhibitor and urease inhibitor, nitrification inhibitor and urase suppression
The ratio of preparation is 1：1.
On the other hand there is provided a kind of solid preparation method that can be fertile of double-core, it is characterised in that comprises the following steps,
S1, prepares masterbatch：Nitrification inhibitor, urease inhibitor, middle trace element and humic acid are well mixed, mother is made
Material；
S2, nutriment processing：Urea, MAP and potassium sulfate are distinguished into premenstrual workshop section to crush, and cross 2mm sieves respectively and is carried out
Screening metering；Urea after screening is sent into urea melting device, potassium sulfate feeding first-stage tank, MAP feeding second-level groove, urine
Temperature in plain melting device is maintained at 125 DEG C；
S3, material mixing：Masterbatch is sent into first-stage tank in the lump with spiral metering in Ta Xiaqian workshop sections with potassium sulfate, while
Potassium fulvate is sent into first order reaction groove with spiral metering at tower upper level groove, obtained all materials feeding second-level groove is carried out
Mixed material is made with well mixed in strong stirring；
S4, granulation and cooling：Fertiliser granulates are made through comminutor granulation in mixed material, fertiliser granulates are carried out by high tower
Tower cooling treatment, fertiliser granulates fall to be scraped by scraper in bottom of towe to be sieved into cooling cylinder, is cooled down subsequently into powder flow cooler
Processing；
S5, coating and screening：Fertiliser granulates carry out coating and regrading, last metering packing after cooler comes out
.
Embodiment 4：On the one hand there is provided a kind of solid energy fertilizer of double-core, it is formulated by the raw material of following parts by weight：
35 parts of urea, 25 parts of MAP, 35 parts of potassium sulfate, 11 parts of sodium sulphate, 1.5 parts of inhibitor, middle micro- 1.5
Part, 1.5 parts of potassium fulvate, 1.5 parts of humic acid；The inhibitor includes nitrification inhibitor and urease inhibitor, nitrification inhibitor
Ratio with urease inhibitor is 1：1.
On the other hand there is provided a kind of solid preparation method that can be fertile of double-core, it is characterised in that comprises the following steps,
S1, prepares masterbatch：Nitrification inhibitor, urease inhibitor, middle trace element and humic acid are well mixed, mother is made
Material；
S2, nutriment processing：Urea, MAP and potassium sulfate are distinguished into premenstrual workshop section to crush, and cross 2mm sieves respectively and is carried out
Screening metering；Urea after screening is sent into urea melting device, potassium sulfate feeding first-stage tank, MAP feeding second-level groove, urine
Temperature in plain melting device is maintained at 123 DEG C；
S3, material mixing：Masterbatch is sent into first-stage tank in the lump with spiral metering in Ta Xiaqian workshop sections with potassium sulfate, while
Potassium fulvate is sent into first order reaction groove with spiral metering at tower upper level groove, obtained all materials feeding second-level groove is carried out
Mixed material is made with well mixed in strong stirring；
S4, granulation and cooling：Fertiliser granulates are made through comminutor granulation in mixed material, fertiliser granulates are carried out by high tower
Tower cooling treatment, fertiliser granulates fall to be scraped by scraper in bottom of towe to be sieved into cooling cylinder, is cooled down subsequently into powder flow cooler
Processing；
S5, coating and screening：Fertiliser granulates carry out coating and regrading, last metering packing after cooler comes out
.
Embodiment 5：On the one hand there is provided a kind of solid energy fertilizer of double-core, it is formulated by the raw material of following parts by weight：
45 parts of urea, 40 parts of MAP, 38 parts of potassium sulfate, 11 parts of sodium sulphate, 1.5 parts of inhibitor, middle micro- 1.5
Part, 1.5 parts of potassium fulvate, 1.5 parts of humic acid；The inhibitor includes nitrification inhibitor and urease inhibitor, nitrification inhibitor
Ratio with urease inhibitor is 1：1.
On the other hand there is provided a kind of solid preparation method that can be fertile of double-core, it is characterised in that comprises the following steps,
S1, prepares masterbatch：Nitrification inhibitor, urease inhibitor, middle trace element and humic acid are well mixed, mother is made
Material；
S2, nutriment processing：Urea, MAP and potassium sulfate are distinguished into premenstrual workshop section to crush, and cross 2mm sieves respectively and is carried out
Screening metering；Urea after screening is sent into urea melting device, potassium sulfate feeding first-stage tank, MAP feeding second-level groove, urine
Temperature in plain melting device is maintained at 123 DEG C；
S3, material mixing：Masterbatch is sent into first-stage tank in the lump with spiral metering in Ta Xiaqian workshop sections with potassium sulfate, while
Potassium fulvate is sent into first order reaction groove with spiral metering at tower upper level groove, obtained all materials feeding second-level groove is carried out
Mixed material is made with well mixed in strong stirring；
S4, granulation and cooling：Fertiliser granulates are made through comminutor granulation in mixed material, fertiliser granulates are carried out by high tower
Tower cooling treatment, fertiliser granulates fall to be scraped by scraper in bottom of towe to be sieved into cooling cylinder, is cooled down subsequently into powder flow cooler
Processing；
S5, coating and screening：Fertiliser granulates carry out coating and regrading, last metering packing after cooler comes out
.
Embodiment 6：On the one hand there is provided a kind of solid energy fertilizer of double-core, it is formulated by the raw material of following parts by weight：
40 parts of urea, 40 parts of MAP, 40 parts of potassium sulfate, 11 parts of sodium sulphate, 2 parts of inhibitor, middle micro- 2 parts,
2 parts of potassium fulvate, 2 parts of humic acid；The inhibitor includes nitrification inhibitor and urease inhibitor, nitrification inhibitor and urase suppression
The ratio of preparation is 1：1.
On the other hand there is provided a kind of solid preparation method that can be fertile of double-core, it is characterised in that comprises the following steps,
S1, prepares masterbatch：Nitrification inhibitor, urease inhibitor, middle trace element and humic acid are well mixed, mother is made
Material；
S2, nutriment processing：Urea, MAP and potassium sulfate are distinguished into premenstrual workshop section to crush, and cross 2mm sieves respectively and is carried out
Screening metering；Urea after screening is sent into urea melting device, potassium sulfate feeding first-stage tank, MAP feeding second-level groove, urine
Temperature in plain melting device is maintained at 123 DEG C；
S3, material mixing：Masterbatch is sent into first-stage tank in the lump with spiral metering in Ta Xiaqian workshop sections with potassium sulfate, while
Potassium fulvate is sent into first order reaction groove with spiral metering at tower upper level groove, obtained all materials feeding second-level groove is carried out
Mixed material is made with well mixed in strong stirring；
S4, granulation and cooling：Fertiliser granulates are made through comminutor granulation in mixed material, fertiliser granulates are carried out by high tower
Tower cooling treatment, fertiliser granulates fall to be scraped by scraper in bottom of towe to be sieved into cooling cylinder, is cooled down subsequently into powder flow cooler
Processing；
S5, coating and screening：Fertiliser granulates carry out coating and regrading, last metering packing after cooler comes out
.
Above-mentioned embodiment is used for illustrating the present invention, rather than limits the invention, in the spirit of the present invention
In scope of the claims, any modifications and changes made to the present invention both fall within protection scope of the present invention.
Claims (6)
1. a kind of double-core is solid can be fertile, it is characterised in that is formulated by the raw material of following parts by weight：
33-50 parts of urea, 13-44 parts of MAP, 20-44 parts of potassium sulfate, 10-12 parts of sodium sulphate, 1-2 parts of inhibitor, in it is micro-
1-2 parts of secondary element, 1-2 parts of potassium fulvate, 1-2 parts of humic acid；
The inhibitor includes nitrification inhibitor and urease inhibitor, and the ratio of nitrification inhibitor and urease inhibitor is 1：1.
2. double-core according to claim 1 is solid can be fertile, it is characterised in that is formulated by the raw material of following parts by weight：
50 parts of urea, 16 parts of MAP, 20 parts of potassium sulfate, 10 parts of sodium sulphate, 1 part of inhibitor is middle micro- 1 part, yellow rotten
Sour 2 parts of potassium, 2 parts of humic acid.
3. double-core according to claim 1 is solid can be fertile, it is characterised in that the nitrification inhibitor is dicyandiamide.
4. double-core according to claim 1 is solid can be fertile, it is characterised in that the urease inhibitor is N- methyl -2- pyrroles
Alkanone.
5. the solid preparation method that can be fertile of a kind of double-core, it is characterised in that comprise the following steps,
S1, prepares masterbatch：Nitrification inhibitor, urease inhibitor, middle trace element and humic acid are well mixed, masterbatch is made；
S2, nutriment processing：Urea, MAP and potassium sulfate are distinguished into premenstrual workshop section to crush, and cross 2mm respectively and is sieved
Metering；Urea after screening is sent into urea melting device, potassium sulfate feeding first-stage tank, MAP feeding second-level groove, urea melts
The temperature melted in device is maintained at 120-125 DEG C；
S3, material mixing：Masterbatch is sent into first-stage tank in the lump with spiral metering in Ta Xiaqian workshop sections with potassium sulfate, while on tower
Potassium fulvate is sent into first order reaction groove with spiral metering at first-stage tank, obtained all materials feeding second-level groove is subjected to strength
Mixed material is made with well mixed in stirring；
S4, granulation and cooling：Fertiliser granulates are made through comminutor granulation in mixed material, fertiliser granulates carry out tower by high tower
Cooling treatment, fertiliser granulates fall to be scraped by scraper in bottom of towe to be sieved into cooling cylinder, subsequently into powder flow cooler cooling treatment；
S5, coating and screening：Fertiliser granulates carry out coating and regrading, last metering packing after cooler comes out.
6. a kind of solid preparation method that can be fertile of double-core according to claim 5, it is characterised in that urea in the S2 steps
Temperature in melting device is maintained at 123 DEG C.
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| CN201710532197.7A CN107141136A (en) | 2017-07-03 | 2017-07-03 | Solid energy fertilizer of a kind of double-core and preparation method thereof |
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|---|---|---|---|
| CN201710532197.7A CN107141136A (en) | 2017-07-03 | 2017-07-03 | Solid energy fertilizer of a kind of double-core and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112209784A (en) * | 2020-11-02 | 2021-01-12 | 中国科学院沈阳应用生态研究所 | Synergistic stable compound fertilizer and preparation method thereof |
| CN112979374A (en) * | 2021-04-07 | 2021-06-18 | 内蒙古辽中京农业科技有限责任公司 | Compound fertilizer special for saline-alkali soil beet and preparation method thereof |
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| CN104496706A (en) * | 2015-01-09 | 2015-04-08 | 山东史贝美肥料股份有限公司 | Ammonium-aldehyde dually-controlled compound fertilizer and preparation method thereof |
| CN106242826A (en) * | 2016-08-26 | 2016-12-21 | 山东三方化工集团有限公司 | A kind of drought resisting, all nutrition type Semen Maydis long-acting special fertilizer and preparation method thereof |
| CN106673828A (en) * | 2016-12-26 | 2017-05-17 | 中化化肥有限公司临沂农业研发中心 | High-tower dual-effect inhibitor type corn stability special fertilizer and production method thereof |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104276906A (en) * | 2014-09-17 | 2015-01-14 | 湖北祥云(集团)化工股份有限公司 | Humic acid synergistic slow-release compound fertilizer and preparation method thereof |
| CN104496706A (en) * | 2015-01-09 | 2015-04-08 | 山东史贝美肥料股份有限公司 | Ammonium-aldehyde dually-controlled compound fertilizer and preparation method thereof |
| CN106242826A (en) * | 2016-08-26 | 2016-12-21 | 山东三方化工集团有限公司 | A kind of drought resisting, all nutrition type Semen Maydis long-acting special fertilizer and preparation method thereof |
| CN106673828A (en) * | 2016-12-26 | 2017-05-17 | 中化化肥有限公司临沂农业研发中心 | High-tower dual-effect inhibitor type corn stability special fertilizer and production method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112209784A (en) * | 2020-11-02 | 2021-01-12 | 中国科学院沈阳应用生态研究所 | Synergistic stable compound fertilizer and preparation method thereof |
| CN112979374A (en) * | 2021-04-07 | 2021-06-18 | 内蒙古辽中京农业科技有限责任公司 | Compound fertilizer special for saline-alkali soil beet and preparation method thereof |
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