CN106116983A - A kind of biodegradable coat fertilizer and production method thereof - Google Patents
A kind of biodegradable coat fertilizer and production method thereof Download PDFInfo
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- CN106116983A CN106116983A CN201610463849.1A CN201610463849A CN106116983A CN 106116983 A CN106116983 A CN 106116983A CN 201610463849 A CN201610463849 A CN 201610463849A CN 106116983 A CN106116983 A CN 106116983A
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- fertilizer
- vegetable oil
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- starch
- biodegradable
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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
- 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
- C05G3/90—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
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Fertilizers (AREA)
Abstract
The present invention relates to a kind of biodegradable coat fertilizer and production method thereof, it is characterized in that coated fertilizer is 3～10:1000 with the weight ratio of fertilizer, described coated fertilizer is mainly made up of starch, vegetable oil, breast acid, and the percentage by weight of each component is: starch 3%～10%, vegetable oil 15%～50%, breast acid 40%～60%.The degraded enveloped material that the present invention chooses mainly is made up of materials such as vegetable oil, starch, polylactic acid, chitins, is affected by the external environment little, is easily attached to fertiliser granulates surface；Do not react with fertilizer nutrient or affect nutrient performance；Can solidify rapidly during less than its melt temperature；Can be by coating layer THICKNESS CONTROL nutrients release, to meet plant growth demand；Can degrade voluntarily in soil, degradation cycle is short, not contaminated soil；With low cost, it is suitable for large-scale production and spread.
Description
Technical field
The present invention relates to technical field of agricultural fertilizers, specifically a kind of biodegradable coat fertilizer and production method thereof.
Background technology
Show according to FAO (Food and Agriculture Organization of the United Nation) (FAO) data, the contribution rate that world food is increased production by chemical fertilizer to about 55%,
It is huge for being referred to as the chemical fertilizer of " grain of mankind's grain " effect in Grain Production in China with grain security.
At present, the fertilizer consumption in Chinese agriculture increases with the speed of annual 5%, accounts for agricultural full scale production and props up
50% gone out.According to statistics, nitrogen throughout this season utilization rate is only 30%, and phosphate fertilizer is only 20%, and potash fertilizer, also below 40%, loses every year
Chemical fertilizer reach 11,000,000 tons, and the loss that chemical fertilizer brings in terms of environment is by the rate of exchange being up to 100,000,000,000 yuan.At present, China accounts for generation
The arable land less than 10%, the boundary, fertilizer consumption but accounts for the 30% of world's total amount, and unit are amount of application reaches the 3 of world average level
The most.
By analysis above it can be seen that the development of chemical fertilizer industry is same bring that increases in grain production contribute to agricultural production
Time, also bring many " harm ".Along with the raising of people's environmental consciousness, to reducing chemical fertilizer loss, improve utilization rate of fertilizer, subtract
Light or release fertilizer pollution is increasingly paid attention to.Research shows, the emphasis of following Fertilizer development and plant nutrient research not only to close
Note nutrient content, nutrient form to be paid attention to and science collocation thereof, Different Nutrients form to be studied mutually convert and
Crop alimentary is absorbed, converts and the effect of utilization rate of fertilizer lifting by the application of auxiliary agent.
Release and release control fertilizer has enjoyed pass in the industries such as China's agricultural, Production of manure industry and association area since the nineties in 20th century
Note.The Ministry of Science and Technology, in succession in " 15 " with the Eleventh Five-Year Plan period set up Slow or controlled release fertilizer project, carries out slow-release controlled-release fertile
The Key Common Technologies of material and study on the industrialization thereof, make the new-type fertilizer initiatives such as China's release and release control fertilizer along healthy track development
And obtain intended economic and social benefit.It is for solving " the fertilizer of Chinese agriculture sustainable development that China carries out release and release control fertilizer development
Material problem ", try hard to improve the utilization rate of chemical fertilizer by transformation fertilizer.Controlled Release Fertilizer is as a kind of novel product, and application benefit is very
Many, but research finds, and its coated fertilizer is difficult to degraded degraded in other words in soil and needs the time of decades, brings to soil
Secondary pollution.There is presently no and a kind of be mainly composed of biodegradable, the biology of biocompatible environmental friendliness new material can
Degraded enveloped fertilizer.
Summary of the invention
The present invention is just for above technical problem, it is provided that one is mainly composed of biodegradable, biocompatible ring
The biodegradable coat fertilizer of border close friend's new material and production method thereof.
The present invention is mainly achieved through the following technical solutions.
A kind of biodegradable coat fertilizer, it is characterised in that coated fertilizer is 3～10:1000 with the weight ratio of fertilizer.
The coated fertilizer of a kind of biodegradable coat fertilizer, is mainly made up of starch, vegetable oil, breast acid, and it is special
Levy and be that the percentage by weight of each component is: starch 3%～10%, vegetable oil 15%～50%, breast acid 40%～60%.Starch
It is 1:5 with vegetable oil ratio.The breast preferred polylactide of acid.
The present invention also provides for the production method of a kind of biodegradable coat fertilizer, it is characterised in that:
One, dry materials, preheats the fertilizer treating peplos in belt conveyer scale is sent to cylinder, removes moisture；
Two, internal layer peplos spraying, heats vegetable oil, is then put into by a certain percentage in vegetable oil by starch, be sufficiently mixed
Pulp material, then delivers into by compression pump in the cylinder of step one preheating through material pipe, equal from material pipe afterbody shower nozzle
On the even material sprayed in cylinder described in step one, after being sufficiently stirred for and spray uniformly, proceed to cooling cylinder through travelling belt cold
But, cylinder preheating is proceeded to the most again, in triplicate；
Three, outer layer peplos spraying, after breast acid heating and melting, by compression pump through expecting that pipe delivers in cylinder warp
Step 2 carried out the material of three internal layer peplos sprayings and carried out outer layer peplos spraying, after being sufficiently stirred for and spray uniformly, through fortune
Defeated belt proceeds to cooling cylinder and cools down, and proceeds to cylinder the most again and carries out the spraying of next layer of outer layer peplos, repeatedly circulates
After i.e. obtain the semi-finished product of biodegradable coat fertilizer；
Four, the semi-finished product of the biodegradable coat fertilizer carrying out repeatedly circulating through step 3 are sieved, throw by screening polishing
Light, after pack after weighing balance weight, warehouse-in.
Fertilizer preheating temperature in step one is 80 DEG C～90 DEG C.
Vegetable oil heating-up temperature in step 2 is 40 DEG C～50 DEG C.
Step 2, a diameter of 15mm of material pipe in three.
The degraded enveloped material that the present invention chooses mainly is made up of materials such as vegetable oil, starch, polylactic acid, chitins, is subject to
External environment impact is little, is easily attached to fertiliser granulates surface；Do not react with fertilizer nutrient or affect nutrient performance；Less than it
Can solidify rapidly during melt temperature；Can be by coating layer THICKNESS CONTROL nutrients release, to meet plant growth demand；In soil
Can degrade voluntarily, degradation cycle is short, not contaminated soil；With low cost, it is suitable for large-scale production and spread.
Meanwhile, the present invention, by the preparation process of polymeric film material, introduces biodegradable chemical group, gives
Polymeric membrane material biological degradation function, makes membrane material both have excellent biodegradability, has again good controlled capability
Energy.Using trace spraying coating process in coating process, this technique substantially increases the utilization rate of coated fertilizer, and achieves bag
Being sufficiently mixed of membrane material, improves the controlled release properties of fertilizer.By consumption and the component of regulation coalescents, improve material
Controlled release properties, reduces the consumption of material, thus reduces production cost.Additionally, production method of the present invention can the company of realization
Continuousization, the production of automatization, drastically increase the system of the production efficiency of coated fertilizer, coated fertilizer and film-coated controlled release fertilizer thereof
Standby process economics is feasible, realizes pilot scale horizontal continuity, automated production first, and stable degree is high.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
As a example by carbamide, 6000Kg carbamide is preheated in belt conveyer scale is sent to cylinder 90 DEG C, removes moisture, by 15Kg plant
Oil is heated to 50 DEG C, is then put into by 3Kg starch in the vegetable oil of heating, is sufficiently mixed pulp material, then by pressure
Power pump is delivered in cylinder through material pipe, and logical charge tube afterbody shower nozzle even application is on preheated carbamide, waits carbamide abundant
After stirring and spray uniformly, proceed to cooling cylinder cooling through travelling belt, then proceed to cylinder preheating, when being preheated to 90 DEG C, repeat
Spraying, after circulating three times, then by after polylactide 18Kg heating and melting, and is passed through by compression pump in material pipe is delivered to cylinder
The shower nozzle of material pipe afterbody carries out outer layer peplos spraying, after being sufficiently stirred for and spray uniformly, proceeds to cooling cylinder through travelling belt and carries out
Cooling, proceeds to cylinder after sufficiently cool again and carries out the spraying of next layer of outer layer peplos, carries out three layers of outer layer peplos spraying altogether,
Then the material of cooling being sieved, polished, finally metering is weighed, and then packs warehouse-in.
Embodiment 2
As a example by carbamide, 6000Kg carbamide is preheated in belt conveyer scale is sent to cylinder 80 DEG C, removes moisture, by 20Kg plant
Oil is heated to 40 DEG C, is then put into by 4Kg starch in the vegetable oil of heating, is sufficiently mixed pulp material, then by pressure
Power pump is delivered in cylinder through material pipe, and logical charge tube afterbody shower nozzle even application is on preheated carbamide, waits carbamide abundant
After stirring and spray uniformly, proceed to cooling cylinder cooling through travelling belt, then proceed to cylinder preheating, when being preheated to 80 DEG C, repeat
Spraying, after circulating three times, then by after polylactide 25Kg heating and melting, and is passed through by compression pump in material pipe is delivered to cylinder
The shower nozzle of material pipe afterbody carries out outer layer peplos spraying, after being sufficiently stirred for and spray uniformly, proceeds to cooling cylinder through travelling belt and carries out
Cooling, proceeds to cylinder after sufficiently cool again and carries out the spraying of next layer of outer layer peplos, carries out four layers of outer layer peplos spraying altogether,
Then the material of cooling being sieved, polished, finally metering is weighed, and then packs warehouse-in.
Project Product passes through at the beginning of GB standard method (GB/T 23348-2009), prepared Novel series release and release control fertilizer
Phase dissolution rate is below 15%, meets international and national standard.
By national standard method, the release phase of obtained Novel series release and release control fertilizer is more than 28 days, meets international and national mark
Accurate requirement, the operability of technique is verified.
Novel film-coated controlled release fertilizer compares tradition film-coated controlled release fertilizer, and it is near that the identical controlled release phase (60 days) can reduce film material thickness
3 times, save a large amount of coated fertilizer, reduce the production cost of coated fertilizer.
By the standard IS014852 " mensuration of plastic material biodegradability under aerobic condition in water system culture fluid
By the method for the carbon dioxide that analysis discharges " the method novel film-coated controlled release fertilizer film material biodegradability of inspection, find new
Shaped material has good biodegradability.
Above-described embodiment is only for illustrating technology design and the feature of the present invention, and the purpose of the present invention essentially consists in allow is familiar with this
The personage of item technology will appreciate that present disclosure and implements according to this, can not limit the scope of the invention with this.All
The equivalence change made according to spirit of the invention or modification, all should contain within protection scope of the present invention.
Claims (8)
1. a biodegradable coat fertilizer, it is characterised in that coated fertilizer is 3～10:1000 with the weight ratio of fertilizer.
A kind of biodegradable coat fertilizer, it is characterised in that described coated fertilizer mainly by starch,
Vegetable oil, breast acid composition, the percentage by weight of each component is: starch 3%～10%, vegetable oil 15%～50%, lactic acid class
Material 40%～60%.
A kind of biodegradable coat fertilizer, it is characterised in that described starch with vegetable oil ratio is
1:5.
A kind of biodegradable coat fertilizer, it is characterised in that described breast acid the most poly-third
Lactide.
5. the production method of a biodegradable coat fertilizer, it is characterised in that:
One, dry materials, preheats the fertilizer treating peplos in belt conveyer scale is sent to cylinder, removes moisture；
Two, internal layer peplos spraying, heats vegetable oil, is then put into by a certain percentage in vegetable oil by starch, be sufficiently mixed
Pulp material, then delivers into by compression pump in the cylinder of step one preheating through material pipe, equal from material pipe afterbody shower nozzle
On the even material sprayed in cylinder described in step one, after being sufficiently stirred for and spray uniformly, proceed to cooling cylinder through travelling belt cold
But, cylinder preheating is proceeded to the most again, in triplicate；
Three, outer layer peplos spraying, after breast acid heating and melting, by compression pump through expecting that pipe delivers in cylinder warp
Step 2 carried out the material of three internal layer peplos sprayings and carried out outer layer peplos spraying, after being sufficiently stirred for and spray uniformly, through fortune
Defeated belt proceeds to cooling cylinder and cools down, and proceeds to cylinder the most again and carries out the spraying of next layer of outer layer peplos, repeatedly circulates
After i.e. obtain the semi-finished product of biodegradable coat fertilizer；
Four, the semi-finished product of the biodegradable coat fertilizer carrying out repeatedly circulating through step 3 are sieved, throw by screening polishing
Light, after pack after weighing balance weight, warehouse-in.
The production method of a kind of biodegradable coat fertilizer, it is characterised in that in described step one
Fertilizer preheating temperature be 80 DEG C～90 DEG C.
The production method of a kind of biodegradable coat fertilizer, it is characterised in that in described step 2
Vegetable oil heating-up temperature be 40 DEG C～50 DEG C.
The production method of a kind of biodegradable coat fertilizer, it is characterised in that described step 2, three
In a diameter of 15mm of material pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610463849.1A CN106116983A (en) | 2016-06-24 | 2016-06-24 | A kind of biodegradable coat fertilizer and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610463849.1A CN106116983A (en) | 2016-06-24 | 2016-06-24 | A kind of biodegradable coat fertilizer and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106116983A true CN106116983A (en) | 2016-11-16 |
Family
ID=57268448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610463849.1A Pending CN106116983A (en) | 2016-06-24 | 2016-06-24 | A kind of biodegradable coat fertilizer and production method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109336674A (en) * | 2018-10-30 | 2019-02-15 | 合肥宸翊商贸有限公司 | A kind of preparation method of polydactyl acid slow-release fertilizer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102604349A (en) * | 2012-03-09 | 2012-07-25 | 中国科学院宁波材料技术与工程研究所 | Polylactic acid/ starch full bio-based degradable composite material and preparing method thereof |
| CN103910586A (en) * | 2014-04-28 | 2014-07-09 | 成都新柯力化工科技有限公司 | Slow release fertilizer applicable to water-fertilizer integration and preparation method thereof |
| CN104194012A (en) * | 2014-08-27 | 2014-12-10 | 黑龙江省科学院高技术研究院 | Preparation method of biodegradable coating material |
| CN105037057A (en) * | 2015-06-25 | 2015-11-11 | 合肥工业大学 | Biodegradable double-coated slow-release fertilizer and preparation method thereof |
-
2016
- 2016-06-24 CN CN201610463849.1A patent/CN106116983A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102604349A (en) * | 2012-03-09 | 2012-07-25 | 中国科学院宁波材料技术与工程研究所 | Polylactic acid/ starch full bio-based degradable composite material and preparing method thereof |
| CN103910586A (en) * | 2014-04-28 | 2014-07-09 | 成都新柯力化工科技有限公司 | Slow release fertilizer applicable to water-fertilizer integration and preparation method thereof |
| CN104194012A (en) * | 2014-08-27 | 2014-12-10 | 黑龙江省科学院高技术研究院 | Preparation method of biodegradable coating material |
| CN105037057A (en) * | 2015-06-25 | 2015-11-11 | 合肥工业大学 | Biodegradable double-coated slow-release fertilizer and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109336674A (en) * | 2018-10-30 | 2019-02-15 | 合肥宸翊商贸有限公司 | A kind of preparation method of polydactyl acid slow-release fertilizer |
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Application publication date: 20161116 |