CN109369239A - Containing there are many Special compound fertilizer for corn of phosphorus element and preparation method thereof - Google Patents
Containing there are many Special compound fertilizer for corn of phosphorus element and preparation method thereof Download PDFInfo
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- CN109369239A CN109369239A CN201811586074.2A CN201811586074A CN109369239A CN 109369239 A CN109369239 A CN 109369239A CN 201811586074 A CN201811586074 A CN 201811586074A CN 109369239 A CN109369239 A CN 109369239A
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- corn
- double superhosphate
- drying
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- normal superphosphate
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
- C05B1/02—Superphosphates
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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
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
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Abstract
The invention discloses a kind of containing there are many Special compound fertilizer for corn of phosphorus element and preparation method thereof, by mass percentage: urea ratio 48%-56%, potassium chloride ratio 15% -25%, normal superphosphate ratio 6% -10%, double superhosphate ratio 6% -10%, monoammonium phosphate ratio 10% -18%, ammonium hydrogen carbonate ratio 1.2% -2%, zinc sulfate ratio 1% -2%.The ammoniated treatment of normal superphosphate and double superhosphate is realized by ammonium hydrogen carbonate, to solve the process difficulties that urea and its cannot be directly mixed, using its distinctive viscosity, realization is granulated without filler material, utilizes phosphorus decomposing microbial inoculum raising P elements utilization rate.The diversification of final products P elements source, is conducive to crop and is absorbed and utilized, and containing microelement in sulphur, zinc needed for corn growth, calcium, has and promote fertilizer synergistic, improve soil, improve the effect of corn yield and quality.
Description
Technical field
The invention belongs to chemical fertilizer technical fields, and in particular to a kind of containing there are many Special compound fertilizer for corn of phosphorus element
And preparation method thereof.P elements source is normal superphosphate, double superhosphate and monoammonium phosphate in final products.
Background technique
Currently, the development of domestic and international compound fertilizer is occupied an leading position in chemical fertilizer industry with the development of modern agriculture,
Chemical fertilizer industry developed country, compound fertilizer dosage have accounted for the 70%~80% of fertilizer amount.Compound fertilizer mainly by it is nitrogenous,
After the base fertilizer of phosphorus, potassium, such as the mixing of urea, ammonium chloride, phosphorus ammonium, potassium chloride material, in pelletizer, in certain temperature
Under amount of liquid phase, by being added sticky filler material, such as stick soil, clay, reunion granulating, then through drying, cooling, be sieved into it is multiple
Hefei product.Above-mentioned compound fertilizer production technology is the widely used production method in China, and this method production process is simple, operation
It is easy to grasp, but product, there is P elements source is single, P elements cannot preferably be absorbed by crops utilization, need in ingredient
A large amount of sticky filler material is added as adhesive, the high problem of cost of material.
In view of the above-mentioned problems, development and application in Different Crop containing there are many P elements, and can according to Different Crop
Needing to provide the middle infinitesimal secondary element needed for it is to realize that fertilizer efficiently utilizes, and reduces investment, protects environment, that improves soil has
Effect approach.It is granulated by realizing without filler material, to reduce products material cost.
Summary of the invention
The object of the present invention is to provide a kind of production containing there are many Special compound fertilizer for corn of phosphorus element, and product P elements come
Source is respectively normal superphosphate, double superhosphate and monoammonium phosphate, due to their manufacture crafts difference, also containing in sulphur, calcium
Microelement, crop can preferably be absorbed and utilized, and plant recovery of nutrient is high；
It is another object of the present invention to pass through that ammonium hydrogen carbonate is added, by completing common peroxophosphoric acid in drying course and stacking process
The ammonification of calcium and double superhosphate to solve the process difficulties that urea and its cannot be directly mixed, and utilizes its distinctive viscosity,
It realizes and is granulated without filler material；
Further mesh of the invention is the utilization rate that P elements are improved using phosphorus decomposing microbial inoculum, water-soluble caused by ammonifying process to overcome
Property phosphorus declines this problem.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is that: it is a kind of special containing the corn there are many phosphorus element
With compound fertilizer, mass percent 48%-56%, the potassium chloride that urea accounts for total investment material quantity account for the quality of total investment material quantity
Mass percent 6%-10%, the double superhosphate that percentage 15%-25%, normal superphosphate account for total investment material quantity account for always
Put into the mass percent 6%-10% of material quantity, monoammonium phosphate accounts for total mass percent 10%-18%, carbon for putting into material quantity
Mass percent 1.2%-2%, the zinc sulfate that sour hydrogen ammonium accounts for total investment material quantity account for the mass percent of total investment material quantity
1%-2%；
The preparation method of the Special compound fertilizer for corn of the phosphorus element containing there are many, comprising the following steps:
(1) pretreatment of normal superphosphate and double superhosphate
The mixing of 1.1 materials: mixing and blending machine is added in normal superphosphate, double superhosphate and ammonium hydrogen carbonate through measuring,
Even 5~7min of mixing time.We did a large amount of test, if urea and normal superphosphate and mistake again in granulation process
Calcium phosphate is directly mixed, can react and generate ureasulfuric acid and urea phosphate, generate a large amount of liquid phase, make material at pureed or big
Grain, production cannot proceed normally, it is therefore desirable to ammoniated treatment be carried out to normal superphosphate and double superhosphate, to solve urea
It cannot direct mixed process difficulties with it；
1.2 drying ammonifications: mixed material enters drying ammonification machine, completes normal superphosphate and weight peroxophosphoric acid using drying temperature
The ammoniated treatment of calcium, at 70-80 DEG C, drying time 20-25min, material moisture controls the control of drying ammonification machine inlet temperature
3% hereinafter, this during temperature and time it is especially important, if temperature is excessively high and overlong time will cause ammonium hydrogen carbonate
It decomposes too fast, ammonification effect is not achieved, if temperature is low and the time too short aminating reaction that will cause is insufficient, product moisture content
Height influences subsequent use；
1.3 stacking ammonifications and raising P elements utilization rate: the normal superphosphate and double superhosphate that will be handled by step 1.2
Mixture with account for its mass percent 2%-2.5% phosphorus decomposing microbial inoculum blending uniformly, and pile wide 6m, high 5m, length 18m-
The wedge-shaped heap body of 20m, every turning in seven days is primary, and the compost time is 40-45 days, the ammonification of normal superphosphate and double superhosphate
It is a slow process, by drying ammonification and stacks ammonification guarantee ammonification effect and time, passes through phosphorus decomposing microbial inoculum and improve phosphorus member
The utilization rate of element is to solve the problems, such as that ammonifying process causes water-soluble phosphorus to decline；
(2) granulating method compound fertilizer producing equipment is utilized, by the preparation of urea, potassium chloride, monoammonium phosphate, zinc sulfate and step (1)
The mixture of normal superphosphate and double superhosphate enters rotary drum granulator after computer metering, utilizes in granulation process common
The viscosity of calcium superphosphate and double superhosphate uses steam as amount of liquid phase and completes material granulation process, rotary drum as adhesive
Temperature of charge control is at 60-65 DEG C in pelletizer, 5~7min of granulation time；
(3) after being granulated, material enters drying machine, and the control of drying machine inlet temperature is at 100-110 DEG C, 25~35min of drying time；
(4) screening of bulky grain heat, sieve diameter 4.5mm are carried out after drying, the bulky grain after screening returns to rotary drum after crushing and makes
Grain machine；
(5) other materials after sieving enter cooler, cooling time 20~30min；It is sieved after cooling through dusting cover, sieve diameter
Between 2.0-2.5mm, the granular material after dusting cover returns to rotary drum granulator, and qualified product enters packing machine, handles by anti-caking
After pack.
Normal superphosphate/double superhosphate mass ratio is 1: 1, normal superphosphate and double superhosphate point
Not Wei sulfuric acid and phosphoric acid react and be made with rock phosphate in powder, by multiple field trial, the two is mixed by 1: 1 ratio, and using effect is most
It is good.
The ammonium hydrogen carbonate/(normal superphosphate+double superhosphate) mass ratio is 1: 10, in ammonifying process,
The ratio of ammonium hydrogen carbonate is especially important, if ratio is low, ammonification is not thorough, and influences to produce, if ratio is high, causes water-soluble phosphorus
It degenerates serious, influences fertilizer efficiency.
Product total nutrient content >=48%, and contain microelement in sulphur, zinc needed for corn growth, calcium.
P elements source is normal superphosphate, double superhosphate and monoammonium phosphate in the product, since they make
Make technique difference, the utilization rate of P elements is also different, and normal superphosphate and double superhosphate also contain sulphur, micro in calcium
Element, crop can preferably be absorbed and utilized, it is a large amount of experiments have shown that, crop to the P elements utilization rate of normal superphosphate most
Height, followed by double superhosphate are finally monoammonium phosphate.
Beneficial effects of the present invention:
1, P elements source is normal superphosphate, double superhosphate and monoammonium phosphate in product, due to three's production technology and
P elements can be preferably absorbed and utilized in raw materials used difference, crop, reduce the damage of nutrient caused by cannot absorbing as crop
It becomes estranged environmental pollution, plant recovery of nutrient is higher；
2, it by completing the ammonification of normal superphosphate and double superhosphate using ammonium hydrogen carbonate, solves urea with common and crosses phosphorus
Sour calcium and double superhosphate cannot mixture process difficulties, while the ureasulfuric acid and urea phosphate that prevent cause product to agglomerate,
Influence application；
3, product of the invention: in addition to containing nitrogen, phosphorus, potassium element, also containing micro in sulphur, zinc required for corn growth, calcium
Element；
4, normal superphosphate and the distinctive viscosity of double superhosphate are utilized in granulation process, realizes and is granulated without filler material, are reduced
Cost of material.
Detailed description of the invention
Figure of description 1 is the present invention containing there are many preparation method flow charts of the Special compound fertilizer for corn of phosphorus element.
Specific embodiment
Invention is further described in detail in the following with reference to the drawings and specific embodiments:
The present invention contains the Special compound fertilizer for corn there are many phosphorus element, and urea accounts for the mass percent 48%- of total investment material quantity
56%, mass percent 15%-25%, the normal superphosphate that potassium chloride accounts for total investment material quantity account for the matter of total investment material quantity
Amount percentage 6%-10%, double superhosphate account for the mass percent 6%-10% of total investment material quantity, monoammonium phosphate accounts for total throwing
Mass percent 10%-18%, the ammonium hydrogen carbonate for entering material quantity account for mass percent 1.2%-2%, the sulphur of total investment material quantity
Sour zinc accounts for the mass percent 1%-2% of total investment material quantity；
The preparation method of the Special compound fertilizer for corn of the phosphorus element containing there are many, comprising the following steps:
(1) pretreatment of normal superphosphate and double superhosphate
The mixing of 1.1 materials: mixing and blending machine is added in normal superphosphate, double superhosphate and ammonium hydrogen carbonate through measuring,
Even 5~7min of mixing time；
1.2 drying ammonifications: mixed material enters drying ammonification machine, completes normal superphosphate and weight peroxophosphoric acid using drying temperature
The ammoniated treatment of calcium, at 70-80 DEG C, drying time 20-25min, material moisture controls the control of drying ammonification machine inlet temperature
Below 3%；
1.3 stacking ammonifications and raising P elements utilization rate: the normal superphosphate and double superhosphate that will be handled by step 1.2
Mixture with account for its mass percent 2%-2.5% phosphorus decomposing microbial inoculum blending uniformly, and pile wide 6m, high 5m, length 18m-
The wedge-shaped heap body of 20m, every turning in seven days is primary, and the compost time is 40-45 days；
(2) granulating method compound fertilizer producing equipment is utilized, by the preparation of urea, potassium chloride, monoammonium phosphate, zinc sulfate and step (1)
The mixture of normal superphosphate and double superhosphate enters rotary drum granulator after computer metering, utilizes in granulation process common
The viscosity of calcium superphosphate and double superhosphate uses steam as amount of liquid phase and completes material granulation process, rotary drum as adhesive
Temperature of charge control is at 60-65 DEG C in pelletizer, 5~7min of granulation time；
(3) after being granulated, material enters drying machine, and the control of drying machine inlet temperature is at 100-110 DEG C, 25~35min of drying time；
(4) screening of bulky grain heat, sieve diameter 4.5mm are carried out after drying, the bulky grain after screening returns to rotary drum after crushing and makes
Grain machine；
(5) other materials after sieving enter cooler, cooling time 20~30min；It is sieved after cooling through dusting cover, sieve diameter
Between 2.0-2.5mm, the granular material after dusting cover returns to rotary drum granulator, and qualified product enters packing machine, handles by anti-caking
After pack.
Normal superphosphate/double superhosphate mass ratio is 1: 1.
The ammonium hydrogen carbonate/(normal superphosphate+double superhosphate) mass ratio is 1: 10.
Product total nutrient content >=48%, and contain microelement in sulphur, zinc needed for corn growth, calcium.
P elements source is normal superphosphate, double superhosphate and monoammonium phosphate in the product.
The principle of the present invention is: using normal superphosphate, double superhosphate and monoammonium phosphate to obtain in production process
The source of a variety of P elements is added ammonium hydrogen carbonate and completes normal superphosphate and weight peroxophosphoric acid in drying course and stacking process
The ammonification of calcium, to prevent the free phosphoric acid and urine in the free sulfuric acid and double superhosphate in normal superphosphate during major structure grain
Element reaction generates ureasulfuric acid and urea phosphate, cannot proceed normally production, while the utilization of P elements is improved using phosphorus decomposing microbial inoculum
Rate is to solve the problems, such as that ammonifying process causes water-soluble phosphorus to decline.
Below by example, the invention will be further elaborated:
Embodiment 1:25-13-10 corn special-purpose fertilizer, by taking 1 ton of products material norm quota of consumption as an example:
By 75 kilograms of the normal superphosphate (containing P20517.5%, contain S and Ca, mass percent, similarly hereinafter) through measuring, phosphorus is crossed again
Sour 75 kilograms of calcium (containing P205 43%, contain Ca), mixing and blending machine, uniform stirring is added in 15 kilograms of ammonium hydrogen carbonate (containing N 17%)
Time 6min, the mixed material after uniform stirring enter drying ammonification machine, and drying ammonification machine inlet temperature control is at 75 DEG C, drying
Time 20min, material moisture are controlled 2.5%, and 3.3 kilograms of phosphorus decomposing microbial inoculum and blending are added in mixture after the drying
Uniformly, and wide 6m is piled, the wedge-shaped heap body of high 5m, length 20m, every turning in seven days is primary, and the compost time is 42 days.By above-mentioned system
At mixed material by 500 kilograms of computer metering and urea (containing N 46.2%), 162 kilograms of potassium chloride (containing K20 62%),
Rotary drum granulator is added in 157 kilograms of monoammonium phosphate (containing N 11%, P20554%), 16 kilograms of zinc sulfate (containing S and Zn), and rotary drum is made
Temperature of charge control is at 60 DEG C in grain machine, and after 6min is granulated, into drying machine, drying machine inlet temperature is 105 DEG C, dry
30min carries out bulky grain screening after dry, and sieve diameter 4.5mm, 4.5mm or more bulky grain returns to drum granulating after crushing
Machine, other materials enter cooler, cooling time 25min, it is cooling after material sieved through sieve diameter 2.5mm dusting cover, after dusting cover
Granular material return to pelletizer, qualified product enters packing machine, carries out anti-caking processing, coating, packaging, obtaining granularity is 2-
The Special compound fertilizer for corn of a variety of phosphorus elements of 4.5mm.Product is 25.09%-13.02%-10.04% containing N-P2O5-K2O,
And containing microelement in S, Ca, Zn, aqueous 1.7%, intensity 16N, particle is smooth, rounding.
Embodiment 2:26-10-12 corn special-purpose fertilizer, by taking 1 ton of products material norm quota of consumption as an example:
By 70 kilograms of the normal superphosphate (containing P2O5 17.5%, contain S and Ca, mass percent, similarly hereinafter) through measuring, mistake again
70 kilograms of calcium phosphate (containing P205 43%, contain Ca), mixing and blending machine is added in 14 kilograms of ammonium hydrogen carbonate (containing N 17%), uniformly stirs
Time 6min is mixed, the mixed material after uniform stirring enters drying ammonification machine, and drying ammonification machine inlet temperature control is dried at 70 DEG C
Dry time 25min, material moisture are controlled 3%, and 3.08 kilograms of phosphorus decomposing microbial inoculum is added in mixture after the drying and mixes
It is mixed even, and piles wide 6m, the wedge-shaped heap body of high 5m, length 20m, every turning in seven days is primary, and the compost time is 45 days.It will be above-mentioned
For manufactured mixed material by 532 kilograms of computer metering and urea (containing N 46.2%), potassium chloride is public (containing K20 62%) 195
Jin, 108 kilograms of monoammonium phosphate (containing N 11%, P205 54%), 11 kilograms of zinc sulfate (containing S and Zn) are added rotary drum granulator, turn
Temperature of charge control is at 65 DEG C in drum pelletizer, and after 6min is granulated, into drying machine, drying machine inlet temperature is 110 DEG C,
Dry 25min carries out bulky grain screening after dry, and sieve diameter 4.5mm, 4.5mm or more bulky grain returns to rotary drum after crushing
Pelletizer, other materials enter cooler, cooling time 25min, it is cooling after material sieved through sieve diameter 2.2mm dusting cover, carefully
Granular material after sieve returns to pelletizer, and qualified product enters packing machine, carries out anti-caking processing, coating, packaging, obtaining granularity is
The Special compound fertilizer for corn of a variety of phosphorus elements of 2-4.5mm.Product is 26.01%-10.07%- containing N-P205-K20
12.09%, and containing microelement in S, Ca, Zn, aqueous 1.5%, intensity 18N, particle is smooth, rounding.
The present invention solves that China current compound fertilizer P elements source is single, and crop cannot preferably be absorbed and utilized and cause
Nutrient loss and the problems such as environmental pollution.P elements contained by product of the invention derive from normal superphosphate, again mistake
Calcium phosphate and monoammonium phosphate, due to three's production technology and raw materials used difference, P elements can be preferably absorbed and utilized in crop,
Effectively raise the utilization rate of P elements.By the way that ammonium hydrogen carbonate is added, common peroxophosphoric acid is completed in drying and stacking process
The ammonification of calcium and double superhosphate, solve urea and its cannot direct mixture process difficulties, it is distinctive using its when granulation
Viscosity may be implemented no filler material and be granulated, reduces cost of material.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (5)
1. a kind of containing there are many Special compound fertilizer for corn of phosphorus element, which is characterized in that urea accounts for the quality of total investment material quantity
Percentage 48%-56%, potassium chloride account for the mass percent 15% -25% of total investment material quantity, normal superphosphate accounts for total investment
The mass percent 6% -10% of material quantity, double superhosphate account for the mass percent 6% -10% of total investment material quantity, phosphoric acid one
Ammonium accounts for the mass percent 10% -18% of total investment material quantity, ammonium hydrogen carbonate accounts for total mass percent 1.2%-for putting into material quantity
2%, zinc sulfate accounts for the mass percent 1% -2% of total investment material quantity；
The preparation method of the Special compound fertilizer for corn of the phosphorus element containing there are many, comprising the following steps:
(1) pretreatment of normal superphosphate and double superhosphate
The mixing of 1.1 materials: mixing and blending machine is added in normal superphosphate, double superhosphate and ammonium hydrogen carbonate through measuring,
Even 5~7min of mixing time；
1.2 drying ammonifications: mixed material enters drying ammonification machine, completes normal superphosphate and weight peroxophosphoric acid using drying temperature
The ammoniated treatment of calcium, drying ammonification machine inlet temperature control is at 70-80 DEG C, 20-25 min of drying time, material moisture control
System is below 3%；
1.3 stacking ammonifications and raising P elements utilization rate: the normal superphosphate and double superhosphate that will be handled by step 1.2
Mixture with account for its mass percent 2% -2.5% phosphorus decomposing microbial inoculum blending uniformly, and pile wide 6m, high 5m, length 18m -
The wedge-shaped heap body of 20m, every turning in seven days is primary, and the compost time is 40-45 days；
(2) granulating method compound fertilizer producing equipment is utilized, by the preparation of urea, potassium chloride, monoammonium phosphate, zinc sulfate and step (1)
The mixture of normal superphosphate and double superhosphate enters rotary drum granulator after computer metering, utilizes in granulation process common
The viscosity of calcium superphosphate and double superhosphate uses steam as amount of liquid phase and completes material granulation process, rotary drum as adhesive
Temperature of charge control is at 60-65 DEG C in pelletizer, 5~7min of granulation time；
(3) after being granulated, material enters drying machine, and the control of drying machine inlet temperature is at 100-110 DEG C, drying time 25~35
min；
(4) screening of bulky grain heat, sieve diameter 4.5mm are carried out after drying, the bulky grain after screening returns to rotary drum after crushing and makes
Grain machine；
(5) other materials after sieving enter cooler, cooling time 20~30 min；It is sieved after cooling through dusting cover, sieve pore is straight
Between 2.0-2.5mm of diameter, the granular material after dusting cover returns to rotary drum granulator, and qualified product enters packing machine, at anti-caking
It is packed after reason.
2. according to claim 1 containing there are many Special compound fertilizer for corn of phosphorus element, which is characterized in that common peroxophosphoric acid
Calcium/double superhosphate mass ratio is 1:1.
3. according to claim 1 containing there are many Special compound fertilizer for corn of phosphorus element, which is characterized in that ammonium hydrogen carbonate/
The mass ratio of (normal superphosphate+double superhosphate) is 1:10.
4. according to claim 1 containing there are many Special compound fertilizer for corn of phosphorus element, which is characterized in that product total nutrient
Han Liang≤48%, and contain microelement in sulphur, zinc needed for corn growth, calcium.
5. according to claim 1 containing there are many Special compound fertilizer for corn of phosphorus element, which is characterized in that phosphorus member in product
Usually source is normal superphosphate, double superhosphate and monoammonium phosphate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811586074.2A CN109369239A (en) | 2018-12-25 | 2018-12-25 | Containing there are many Special compound fertilizer for corn of phosphorus element and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811586074.2A CN109369239A (en) | 2018-12-25 | 2018-12-25 | Containing there are many Special compound fertilizer for corn of phosphorus element and preparation method thereof |
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Family
ID=65371482
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111517858A (en) * | 2020-04-26 | 2020-08-11 | 刘会英 | High-tower multi-phosphorus nitrogen and phosphorus fertilizer and preparation method thereof |
| CN112146352A (en) * | 2020-09-29 | 2020-12-29 | 嘉施利（宁陵）化肥有限公司 | Cooling machine for compound fertilizer production |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101134692A (en) * | 2006-08-29 | 2008-03-05 | 李彬 | Organic composite fertilizer and preparation method thereof |
| CN103708964A (en) * | 2013-12-30 | 2014-04-09 | 成都新柯力化工科技有限公司 | Instant chelated solid water-soluble fertilizer |
| CN106278603A (en) * | 2016-08-15 | 2017-01-04 | 曹正祥 | A kind of preparation technology of compound fertilizer |
| CN108794123A (en) * | 2017-04-28 | 2018-11-13 | 纪和春 | A kind of environmental protection magnetic fertilizer and its preparation process |
| CN108976086A (en) * | 2018-08-22 | 2018-12-11 | 利辛县鑫圣农业科技有限责任公司 | A kind of preparation method of organic-inorganic compound fertilizer |
-
2018
- 2018-12-25 CN CN201811586074.2A patent/CN109369239A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101134692A (en) * | 2006-08-29 | 2008-03-05 | 李彬 | Organic composite fertilizer and preparation method thereof |
| CN103708964A (en) * | 2013-12-30 | 2014-04-09 | 成都新柯力化工科技有限公司 | Instant chelated solid water-soluble fertilizer |
| CN106278603A (en) * | 2016-08-15 | 2017-01-04 | 曹正祥 | A kind of preparation technology of compound fertilizer |
| CN108794123A (en) * | 2017-04-28 | 2018-11-13 | 纪和春 | A kind of environmental protection magnetic fertilizer and its preparation process |
| CN108976086A (en) * | 2018-08-22 | 2018-12-11 | 利辛县鑫圣农业科技有限责任公司 | A kind of preparation method of organic-inorganic compound fertilizer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111517858A (en) * | 2020-04-26 | 2020-08-11 | 刘会英 | High-tower multi-phosphorus nitrogen and phosphorus fertilizer and preparation method thereof |
| CN112146352A (en) * | 2020-09-29 | 2020-12-29 | 嘉施利（宁陵）化肥有限公司 | Cooling machine for compound fertilizer production |
| CN112146352B (en) * | 2020-09-29 | 2021-05-18 | 嘉施利（宁陵）化肥有限公司 | Cooling machine for compound fertilizer production |
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