CN108752087A - A kind of preparation method of the coated slow-release multielement soil conditioner of the lime-ash containing activated biomass - Google Patents
A kind of preparation method of the coated slow-release multielement soil conditioner of the lime-ash containing activated biomass Download PDFInfo
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- CN108752087A CN108752087A CN201810464722.0A CN201810464722A CN108752087A CN 108752087 A CN108752087 A CN 108752087A CN 201810464722 A CN201810464722 A CN 201810464722A CN 108752087 A CN108752087 A CN 108752087A
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- Prior art keywords
- soil conditioner
- lime
- ash
- multielement
- coated
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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
- 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
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
- C05G5/37—Layered or coated, e.g. dust-preventing coatings layered or coated with a polymer
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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 invention discloses a kind of preparation methods of the coated slow-release multielement soil conditioner of lime-ash containing activated biomass, which is characterized in that sieves biomass lime-ash ball mill grinding, it is added concentrated sulfuric acid leaching, heat-activated reaction, then with water extraction, cold filtration obtains activated biomass lime-ash；Urea, monoammonium phosphate and gained activated biomass lime-ash are added in reaction mixer, stirs evenly, obtains mixed material；Liquefied ammonia and dilute sulfuric acid are passed through into tubular reactor, reaction generates slurry, by slurry spray to mixed material, stirs evenly, is sent into idler wheel and template Squeezinggranulator extrusion forming, screening is dried with coated infrared drier, is sieved, is obtained multielement soil conditioner；Multielement soil conditioner is placed in temperature control rotary drum seed-coating machine, machine is opened and rotates and heat, even application coated fertilizer styrene-acrylic emulsion, particulate material surface is moistened, after moisture content volatilization, sprays into same amount of coated fertilizer again, repeatedly, coated slow-release soil conditioner is made.
Description
Technical field
The present invention relates to soil amendment fertilizer fields, and in particular to a kind of coated slow-release of the lime-ash containing activated biomass is polynary
The preparation method of plain soil conditioner.
Background technology
Biomass carbon be by biological materials such as agricultural crop straw, sawdusts under the environmental condition of limitation or starvation,
Through being pyrolyzed obtained solid product.The biomass carbon being prepared into using agricultural crop straw the like waste since content of ashes is higher,
It can be subject to certain restrictions in industrial circle application, and can extensive use on agriculture field.
The series harm brought for low utilization ratio present in current fertilizer application and its to environment, agricultural product etc. is asked
Topic, carrying out the research of slowly/controlled releasing fertilizer is just becoming one of the hot issue of plant nutrient and fertilizer disciplinary study.Slow/controlled release fertilizer
Fertilizer cladding is got up to be process by the one hand low-permeability may be used in material hydrophobic film；On the other hand, can also pass through
Inhibitor is added, inhibits metabolic enzyme activity, release and the conversion rate of nutrient is reduced or slow down, to improve this season of nutrient
Utilization rate and crop yield.
Invention content
The invention mainly solves the technical problem of providing a kind of coated slow-release multielement soil of lime-ash containing activated biomass
The preparation method of earth conditioner, the soil conditioner prepared according to the technique can effectively promote acid soil pH value, reduce and exchange
Property acid content.
A kind of preparation method of the coated slow-release multielement soil conditioner of the lime-ash containing activated biomass, which is characterized in that
It carries out according to the following steps：
（1）The activating process of biomass lime-ash：
50-55 parts by weight biomass lime-ash ball mill grindings are sieved, by liquid-solid ratio 2:1 is added concentrated sulfuric acid leaching, at 70-80 DEG C
Priming reaction 110-130min, then with water extraction 15-25min, cold filtration obtains activated biomass lime-ash；
（2）The preparation of multielement soil conditioner：
By 5-10 parts by weight of urea, 20-25 parts by weight of phosphoric acid monoammonium and（1）Reaction mixing is added in middle gained activated biomass lime-ash
It in device, stirs evenly, obtains mixed material；Liquefied ammonia and dilute sulfuric acid are passed through into tubular reactor, reaction generates slurry, slurry is sprayed
It pours in mixed material, stirs evenly, be sent into idler wheel and template Squeezinggranulator extrusion forming, coated infrared drier is used in screening
Drying, screening, obtains multielement soil conditioner；
（3）The preparation process of coated slow-release soil conditioner：
It will（2）Middle resulting material is placed in temperature control rotary drum seed-coating machine, is opened machine and is rotated and be heated to 60-65 DEG C,
Even application coated fertilizer styrene-acrylic emulsion, moistening particulate material surface spray into same amount of coating again after moisture content volatilization
Coated slow-release soil conditioner is made repeatedly in material.
Wherein, step（1）The middle concentrated sulfuric acid a concentration of 98%.
Step（2）Middle a concentration of 65-75% of dilute sulfuric acid.
Step（3）Middle seed-coating machine rotary drum inclination angle is 35-45o, rotating speed 60-100rpm, and single material quantity for spray is 1-
3mL。
The reaction mechanism of the present invention is as follows：
（1）Biomass lime-ash has strong basicity, is the high-quality of making acid soil improving agent containing abundant mineral nutrient element
Raw material；Biomass lime-ash is leached with the concentrated sulfuric acid, potassium, magnesium, the dissolution rate of iron are high in lime-ash, can be used for preparing after activated processing
Soil conditioner；Acid soil pH value can be effectively promoted using biomass lime-ash, reduces Exchange alkalinity content.
（2）Urea, monoammonium phosphate and activated biomass lime-ash are stirred evenly into obtain mixed material, liquefied ammonia and dilute sulfuric acid reaction generate
Slurry will stir evenly in slurry spray to mixed material, be sent into Squeezinggranulator extrusion forming, obtain multielement soil conditioner；
Element in soil conditioner in biomass lime-ash can directly be absorbed by plant, change soil fertility library, be risen to soil
To opsonic action；The reasonable utilization of biomass lime-ash, plays the role of energy-saving and emission-reduction, environmental protection in soil conditioner；Soil
Conditioner can improve crop yield, improve crop quality, improve the resistance of crop.
（3）Resulting material is placed in temperature control rotary drum seed-coating machine, machine is opened and rotates and heat, even application coated fertilizer
Styrene-acrylic emulsion, moistening particulate material surface spray into same amount of coated fertilizer again after moisture content volatilization, repeatedly, packet are made
Membrane sustained-release soil conditioner；With good sustained release performance is released with rush.
Specific implementation mode
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, tie below
Specific embodiment is closed, the present invention is further explained.
Embodiment
A kind of preparation method of the coated slow-release multielement soil conditioner of the lime-ash containing activated biomass, which is characterized in that
It carries out according to the following steps：
（1）The activating process of biomass lime-ash：
50kg biomass lime-ash ball mill grindings are sieved, by liquid-solid ratio 2:1 is added concentrated sulfuric acid leaching, is activated at 70-80 DEG C anti-
Answer 130min, then with water extraction 25min, cold filtration obtains activated biomass lime-ash；
（2）The preparation of multielement soil conditioner：
By 5kg urea, 20kg monoammonium phosphate and（1）Middle gained activated biomass lime-ash is added in reaction mixer, stirs evenly,
Obtain mixed material；Liquefied ammonia and dilute sulfuric acid are passed through into tubular reactor, reaction generates slurry, by slurry spray to mixed material
In, it stirs evenly, is sent into idler wheel and template Squeezinggranulator extrusion forming, screening is dried with coated infrared drier, is sieved, is obtained
To multielement soil conditioner；
（3）The preparation process of coated slow-release soil conditioner：
It will（2）Middle resulting material is placed in temperature control rotary drum seed-coating machine, is opened machine and is rotated and be heated to 60-65 DEG C,
Even application coated fertilizer styrene-acrylic emulsion, moistening particulate material surface spray into same amount of coating again after moisture content volatilization
Coated slow-release soil conditioner is made repeatedly in material.
Wherein, step（1）The middle concentrated sulfuric acid a concentration of 98%.
Step（2）Middle dilute sulfuric acid a concentration of 65%.
Step（3）Middle seed-coating machine rotary drum inclination angle is 35o, rotating speed 80rpm, and single material quantity for spray is 1mL.
Claims (5)
1. a kind of preparation method of the coated slow-release multielement soil conditioner of lime-ash containing activated biomass, special
Sign is, biomass lime-ash ball mill grinding is sieved, and is added concentrated sulfuric acid leaching, heat-activated reaction, then with water extraction, cold
But it filters, obtains activated biomass lime-ash；Reaction mixer is added in urea, monoammonium phosphate and gained activated biomass lime-ash
In, it stirs evenly, obtains mixed material；Liquefied ammonia and dilute sulfuric acid are passed through into tubular reactor, reaction generates slurry, slurry is sprayed
It into mixed material, stirs evenly, is sent into idler wheel and template Squeezinggranulator extrusion forming, screening is dried with coated infrared drier
Dry, screening obtains multielement soil conditioner；Gained multielement soil conditioner is placed in temperature control rotary drum seed-coating machine, is opened
Machine is rotated and is heated, even application coated fertilizer styrene-acrylic emulsion, and moistening particulate material surface sprays into again after moisture content volatilization
Coated slow-release soil conditioner is made repeatedly in same amount of coated fertilizer.
2. a kind of preparation of the coated slow-release multielement soil conditioner of lime-ash containing activated biomass according to claim 1
Method, which is characterized in that carry out according to the following steps：
（1）The activating process of biomass lime-ash：
50-55 parts by weight biomass lime-ash ball mill grindings are sieved, by liquid-solid ratio 2:1 is added concentrated sulfuric acid leaching, at 70-80 DEG C
Priming reaction 110-130min, then with water extraction 15-25min, cold filtration obtains activated biomass lime-ash；
（2）The preparation of multielement soil conditioner：
By 5-10 parts by weight of urea, 20-25 parts by weight of phosphoric acid monoammonium and（1）Reaction mixing is added in middle gained activated biomass lime-ash
It in device, stirs evenly, obtains mixed material；Liquefied ammonia and dilute sulfuric acid are passed through into tubular reactor, reaction generates slurry, slurry is sprayed
It pours in mixed material, stirs evenly, be sent into idler wheel and template Squeezinggranulator extrusion forming, coated infrared drier is used in screening
Drying, screening, obtains multielement soil conditioner；
（3）The preparation process of coated slow-release soil conditioner：
It will（2）Middle resulting material is placed in temperature control rotary drum seed-coating machine, is opened machine and is rotated and be heated to 60-65 DEG C,
Even application coated fertilizer styrene-acrylic emulsion, moistening particulate material surface spray into same amount of coating again after moisture content volatilization
Coated slow-release soil conditioner is made repeatedly in material.
3. a kind of preparation of the coated slow-release multielement soil conditioner of lime-ash containing activated biomass according to claim 2
Method, which is characterized in that step（1）The middle concentrated sulfuric acid a concentration of 98%.
4. a kind of preparation of the coated slow-release multielement soil conditioner of lime-ash containing activated biomass according to claim 2
Method, which is characterized in that step（2）Middle a concentration of 65-75% of dilute sulfuric acid.
5. a kind of preparation of the coated slow-release multielement soil conditioner of lime-ash containing activated biomass according to claim 2
Method, which is characterized in that step（3）Middle seed-coating machine rotary drum inclination angle is 35-45o, rotating speed 60-100rpm, single material spraying
Amount is 1-3mL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810464722.0A CN108752087A (en) | 2018-05-16 | 2018-05-16 | A kind of preparation method of the coated slow-release multielement soil conditioner of the lime-ash containing activated biomass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810464722.0A CN108752087A (en) | 2018-05-16 | 2018-05-16 | A kind of preparation method of the coated slow-release multielement soil conditioner of the lime-ash containing activated biomass |
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| CN108752087A true CN108752087A (en) | 2018-11-06 |
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| CN201810464722.0A Pending CN108752087A (en) | 2018-05-16 | 2018-05-16 | A kind of preparation method of the coated slow-release multielement soil conditioner of the lime-ash containing activated biomass |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102020510A (en) * | 2010-10-27 | 2011-04-20 | 合肥工业大学 | Styrene acrylic emulsion-paraffin-attapulgite composite envelope slow-release nitrogen fertilizer and preparation method thereof |
| CN103787774A (en) * | 2014-01-24 | 2014-05-14 | 安徽省化工设计院 | Soil conditioner and preparation method thereof |
| CN107673927A (en) * | 2017-11-03 | 2018-02-09 | 黑龙江省农业科学院土壤肥料与环境资源研究所 | A kind of rice slow-release fertilizer and preparation method thereof |
-
2018
- 2018-05-16 CN CN201810464722.0A patent/CN108752087A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102020510A (en) * | 2010-10-27 | 2011-04-20 | 合肥工业大学 | Styrene acrylic emulsion-paraffin-attapulgite composite envelope slow-release nitrogen fertilizer and preparation method thereof |
| CN103787774A (en) * | 2014-01-24 | 2014-05-14 | 安徽省化工设计院 | Soil conditioner and preparation method thereof |
| CN107673927A (en) * | 2017-11-03 | 2018-02-09 | 黑龙江省农业科学院土壤肥料与环境资源研究所 | A kind of rice slow-release fertilizer and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 廖奇: "新型缓释与促释肥料制备方法探讨", 《合肥工业大学硕士学位论文》 * |
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Application publication date: 20181106 |
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