CN108503431A - A kind of preparation method of the biomass charcoal slow-release fertilizer of flyash coating - Google Patents
A kind of preparation method of the biomass charcoal slow-release fertilizer of flyash coating Download PDFInfo
- Publication number
- CN108503431A CN108503431A CN201810464751.7A CN201810464751A CN108503431A CN 108503431 A CN108503431 A CN 108503431A CN 201810464751 A CN201810464751 A CN 201810464751A CN 108503431 A CN108503431 A CN 108503431A
- Authority
- CN
- China
- Prior art keywords
- fertilizer
- flyash
- biomass
- nitrification inhibitor
- rice straw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
-
- 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
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
-
- 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 preparation methods of the biomass charcoal slow-release fertilizer of flyash coating, it is characterized in that, by rice straw, drying to constant weight, it is put into continuous pyrolysis device after crushing, high temperature is pyrolyzed rice straw, pyrolysis gained rice straw powdered carbon is cooled to room temperature in charcoal case, through pulverizer grinding and sieving, obtains biomass carbon；Urea is pulverized and sieved with pulverizer, is mixed with biomass carbon, binder, distilled water is added to mix thoroughly, be placed in mold, tabletting is carried out with tablet press machine, column biomass carbon base urea fertilizer is made, drying to constant weight in electric drying oven with forced convection；It will be in gained fertilizers input to granulating disc; start turntable; it is composite modified to spray bentonite, humic acid; coated fertilizer flyash, nitrification inhibitor dicyandiamide are spread fertilizer over the fields, is rotated, then spray bentonite and humic acid; spread fertilizer over the fields coated fertilizer, nitrification inhibitor; it is rotated further, repeatedly, the coat fertilizer containing nitrification inhibitor is made.
Description
Technical field
The present invention relates to soil amendment fertilizer fields, and in particular to a kind of biomass charcoal slow-release fertilizer of flyash coating
Preparation method.
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 preparations of the biomass charcoal slow-release fertilizer of flyash coating
Method, the slow-release fertilizer mechanical property and sustained release performance prepared according to the technique is excellent, is imitated to improving soil nutrient content and enzymatic activity
Fruit is good.
A kind of preparation method of the biomass charcoal slow-release fertilizer of flyash coating, which is characterized in that carry out according to the following steps：
（1）The pyrolytic process of biomass carbon：
By rice straw, drying to constant weight at 40-43 DEG C, is put into continuous pyrolysis device after crushing, right at 500-600 DEG C
Rice straw is pyrolyzed, and pyrolysis gained rice straw powdered carbon is cooled to room temperature in charcoal case, and 40 mesh sieve is smashed it through through pulverizer,
Obtain biomass carbon；
（2）The extrusion forming of column biomass carbon base urea fertilizer：
50-60 parts of urea be crushed into 40 mesh sieve with pulverizer, mixed with 50-60 parts of biomass carbons, 7-8 parts of binders, add 5-
12 parts of distilled water are mixed thoroughly, are placed in mold, and tabletting is carried out with tablet press machine under the conditions of briquetting pressure is 6MPa, and column biology is made
Matter charcoal base urea fertilizer, drying to constant weight in 40-43 DEG C of electric drying oven with forced convection；
（3）The disc granulation of flyash film-coated and slow release fertilizer：
It will（2）In middle gained fertilizers input to granulating disc, turntable is started, spray bentonite, humic acid are composite modified, spread fertilizer over the fields
Coated fertilizer flyash, nitrification inhibitor dicyandiamide rotate 8-10min, then spray bentonite and humic acid, spread fertilizer over the fields coating material
Material, nitrification inhibitor are rotated further 8-10min, repeat 3-4 times, and the packet containing nitrification inhibitor that coating amount is 15-25% is made
Film fertilizer.
Wherein, step（2）Middle binder is sodium carboxymethylcellulose or oxidized starch.
Step（3）Middle bentonite, Rate of Humic Acid are respectively 5-10%, 5-15%, and the additive amount of nitrification inhibitor is 3-5%.
The reaction mechanism of the present invention is as follows：
Using rice straw as raw material, biomass carbon is prepared by continuous pyrolysis device, pore structure is flourishing, utilizes biomass
The absorption property of charcoal prepares biomass carbon base using sodium carboxymethylcellulose or oxidized starch as binder by extrusion forming
Material, mechanical property and sustained release performance are excellent；Select inorganic mineral material flyash, nitrification inhibitor dicyandiamide to biomass carbon base
Fertilizer carries out coating, is carried out with bentonite and humic acid composite modified, and the filming performance of flyash is good, addition nitrification inhibitor system
The novel film-coated and slow release fertilizer with dual-sustained-release effect is obtained, it is good to improving soil nutrient content and enzymatic activity effect.
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 biomass charcoal slow-release fertilizer of flyash coating, which is characterized in that carry out according to the following steps：
（1）The pyrolytic process of biomass carbon：
By rice straw, drying to constant weight at 40-43 DEG C, is put into continuous pyrolysis device after crushing, right at 550-600 DEG C
Rice straw is pyrolyzed, and pyrolysis gained rice straw powdered carbon is cooled to room temperature in charcoal case, and 40 mesh sieve is smashed it through through pulverizer,
Obtain biomass carbon；
（2）The extrusion forming of column biomass carbon base urea fertilizer：
50kg urea be crushed into 40 mesh sieve with pulverizer, mixed with 50kg biomass carbons, 7kg binders, 5kg distilled water is added to mix
It is even, it is placed in mold, carries out tabletting with tablet press machine under the conditions of briquetting pressure is 6MPa, column biomass carbon base urea fertilizer is made
Material, drying to constant weight in 40-43 DEG C of electric drying oven with forced convection；
（3）The disc granulation of flyash film-coated and slow release fertilizer：
It will（2）In middle gained fertilizers input to granulating disc, turntable is started, spray bentonite, humic acid are composite modified, spread fertilizer over the fields
Coated fertilizer flyash, nitrification inhibitor dicyandiamide rotate 10min, then spray bentonite and humic acid, spread fertilizer over the fields coated fertilizer,
Nitrification inhibitor is rotated further 10min, is repeated 3 times, and the coat fertilizer containing nitrification inhibitor that coating amount is 20% is made.
Wherein, step（2）Middle binder is sodium carboxymethylcellulose or oxidized starch.
Step（3）Middle bentonite, Rate of Humic Acid are respectively 10%, 15%, and the additive amount of nitrification inhibitor is 3%.
Claims (4)
1. a kind of preparation method of the biomass charcoal slow-release fertilizer of flyash coating, which is characterized in that rice straw to be dried to
Constant weight is put into after crushing in continuous pyrolysis device, and high temperature is pyrolyzed rice straw, by pyrolysis gained rice straw powdered carbon in charcoal case
It is inside cooled to room temperature, through pulverizer grinding and sieving, obtains biomass carbon；Urea is pulverized and sieved with pulverizer, with biomass
Charcoal, binder mixing, add distilled water to mix thoroughly, are placed in mold, tabletting is carried out with tablet press machine, column biomass carbon base urea is made
Fertilizer, drying to constant weight in electric drying oven with forced convection；By in gained fertilizers input to granulating disc, turntable is started, is sprayed
Bentonite, humic acid are composite modified, spread fertilizer over the fields coated fertilizer flyash, nitrification inhibitor dicyandiamide, rotation, then spray bentonite and
Humic acid spreads fertilizer over the fields coated fertilizer, nitrification inhibitor, is rotated further, and repeatedly, the coat fertilizer containing nitrification inhibitor is made.
2. a kind of preparation method of the biomass charcoal slow-release fertilizer of flyash coating according to claim 1, feature exist
In carrying out according to the following steps：
（1）The pyrolytic process of biomass carbon：
By rice straw, drying to constant weight at 40-43 DEG C, is put into continuous pyrolysis device after crushing, right at 500-600 DEG C
Rice straw is pyrolyzed, and pyrolysis gained rice straw powdered carbon is cooled to room temperature in charcoal case, and 40 mesh sieve is smashed it through through pulverizer,
Obtain biomass carbon；
（2）The extrusion forming of column biomass carbon base urea fertilizer：
50-60 parts of urea be crushed into 40 mesh sieve with pulverizer, mixed with 50-60 parts of biomass carbons, 7-8 parts of binders, add 5-
12 parts of distilled water are mixed thoroughly, are placed in mold, and tabletting is carried out with tablet press machine under the conditions of briquetting pressure is 6MPa, and column biology is made
Matter charcoal base urea fertilizer, drying to constant weight in 40-43 DEG C of electric drying oven with forced convection；
（3）The disc granulation of flyash film-coated and slow release fertilizer：
It will（2）In middle gained fertilizers input to granulating disc, turntable is started, spray bentonite, humic acid are composite modified, spread fertilizer over the fields
Coated fertilizer flyash, nitrification inhibitor dicyandiamide rotate 8-10min, then spray bentonite and humic acid, spread fertilizer over the fields coating material
Material, nitrification inhibitor are rotated further 8-10min, repeat 3-4 times, and the packet containing nitrification inhibitor that coating amount is 15-25% is made
Film fertilizer.
3. a kind of preparation method of the biomass charcoal slow-release fertilizer of flyash coating according to claim 2, feature exist
In step（2）Middle binder is sodium carboxymethylcellulose or oxidized starch.
4. a kind of preparation method of the biomass charcoal slow-release fertilizer of flyash coating according to claim 2, feature exist
In step（3）Middle bentonite, Rate of Humic Acid are respectively 5-10%, 5-15%, and the additive amount of nitrification inhibitor is 3-5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810464751.7A CN108503431A (en) | 2018-05-16 | 2018-05-16 | A kind of preparation method of the biomass charcoal slow-release fertilizer of flyash coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810464751.7A CN108503431A (en) | 2018-05-16 | 2018-05-16 | A kind of preparation method of the biomass charcoal slow-release fertilizer of flyash coating |
Publications (1)
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| CN108503431A true CN108503431A (en) | 2018-09-07 |
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| CN201810464751.7A Pending CN108503431A (en) | 2018-05-16 | 2018-05-16 | A kind of preparation method of the biomass charcoal slow-release fertilizer of flyash coating |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111116272A (en) * | 2019-12-19 | 2020-05-08 | 河海大学 | Soil conditioner for reducing nitrate nitrogen residue in soil of greenhouse vegetable field and preparation method thereof |
| CN113943196A (en) * | 2021-12-01 | 2022-01-18 | 辽宁省农业科学院 | Special fertilizer for corn and peanut intercropping and rotation tillage and cultivation method for maintaining soil organic carbon balance |
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| CN113943196A (en) * | 2021-12-01 | 2022-01-18 | 辽宁省农业科学院 | Special fertilizer for corn and peanut intercropping and rotation tillage and cultivation method for maintaining soil organic carbon balance |
| CN113943196B (en) * | 2021-12-01 | 2022-06-24 | 辽宁省农业科学院 | Special fertilizer for corn and peanut intercropping rotation tillage and cultivation method for maintaining soil organic carbon balance |
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Application publication date: 20180907 |