CN102126896A - Method for producing water-soluble resin coating of slow release fertilizer and coating device - Google Patents
Method for producing water-soluble resin coating of slow release fertilizer and coating device Download PDFInfo
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- CN102126896A CN102126896A CN2011101013965A CN201110101396A CN102126896A CN 102126896 A CN102126896 A CN 102126896A CN 2011101013965 A CN2011101013965 A CN 2011101013965A CN 201110101396 A CN201110101396 A CN 201110101396A CN 102126896 A CN102126896 A CN 102126896A
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- caking agent
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Abstract
The invention relates to a method for producing a water-soluble resin coating of a slow release fertilizer and a coating device. The method comprises the following steps of: introducing the fertilizer into a preheating region of a coating drum at uniform speed by using a belt weigh meter, lifting the fertilizer by using a lifting plate, heating, keeping air inlet temperature between 80 DEG C and 120 DEG C and preheating the fertilizer to 40-60 DEG C; introducing the preheated fertilizer into a coating region and uniformly spraying on the discharge hole of the lifting plate by adopting a multi-point spraying method; introducing the coated fertilizer into a curing and film forming region, lifting the uniform fertilizer by using the lifting plate, and curing and forming a film under the action of hot air to finish a slow release coating process; and introducing the dried slow release coated fertilizer into an anticaking agent adding region and adding an anticaking agent to fulfill the anticaking aim. The invention has the advantages of simple and practicable process, common and easily-popularized device, good coating effect and cost saving. The slow release fertilizer is coated uniformly and has a remarkable slow release effect. Slow release fertilizers with different slow release time are produced at one time by controlling the dosage of a slow release coating material. By adopting the method, large-scale continuous stable production can be realized.
Description
Technical field
The invention belongs to the slow release fertilizer technical field, particularly a kind of slow release fertilizer water soluble resin dressing production method and coating device.
Background technology
The agricultural fertilizer of Shi Yonging is many based on mineral manure in the market, and this class fertilizer discharges soon after using interpolation, loss easily, and utilization ratio is low, causes the waste of resource and the pollution of environment, has also brought many economical load to the peasant.Therefore, produce and use the slow release fertilizer that slows down the fertilizer dissolving and discharge to become use cost that improves fertilizer utilization ratio, reduces fertilizer and an important channel of improving crop yield.Existing slow release fertilizer is many based on the physics coating, but the film technique between coated fertilizer and the fertilizer is a bottleneck, is very restricted on technology, the device.
Summary of the invention
Purpose of the present invention is exactly the deficiency that exists in the above-mentioned existing technology of customer service, and provide a kind of slow release fertilizer water soluble resin dressing production method and coating device, this production method can make the sustained release performance of thin-film material be fully played, very easily promote the use of, this method, appliance arrangement are simple, easy to use.
Technical scheme of the present invention is: a kind of slow release fertilizer water soluble resin dressing production method, it is characterized in that following these steps to carry out: the fertilizer that 1. will enter the preheating zone is kicked up by material delivering plate, the dry-heat air preheating is used in the preheating zone, the dry-heat air temperature is at 80～120 ℃, and the temperature after the fertilizer preheating is at 40～60 ℃; 2. the fertilizer after the preheating enters the coating district, carries out the even spraying coating by the multiple spot spraying method at the material delivering plate feed opening; 3. the fertilizer behind the coating enters the film-forming district, and fertilizer is thrown film-forming under the effect of hot blast by material delivering plate uniformly, finishes release-controlled coated process; 4. the release-controlled coated fertilizer after the oven dry enters and adds the anti-hard caking agent district, and the anti-hard caking agent that adds 0.5-2 kilogram/ton reaches the anti-caking purpose, gets final product packing and storing.
Above-mentioned fertilizer comprises conventional composite fertilizer or straight fertilizer.
The dry-heat air of aforementioned production method is hot blast, the hot blast that the oil bath heat transfer tube produces, the hot blast of Sweet natural gas hotblast stove generation or the hot blast that the coal hotblast stove produces that the electrically heated hotblast stove is produced.
Spraying coating in the aforementioned production method is gas phase pressurized gas and liquid phase sustained release dosage two-phase spraying coating or single liquid phase sustained release dosage spraying coating.
The anti-hard caking agent that add in the anti-interface of above-mentioned fertilizer is liquid anti-hard caking agent, oil-like anti-caking agent or powder anti-hard caking agent.
The coating device that a kind of slow release fertilizer water soluble resin dressing is produced, comprise material delivering plate, cylinder, shower nozzle, cylinder inside from left to right is divided into preheating zone, coating district, film forming district, adds the anti-hard caking agent district, it is characterized in that: cylinder inside is equipped with material delivering plate, and the angle of material delivering plate and inner wall of rotary drum formation is at the 45-75 degree; The a plurality of shower nozzles of installation in the coating district of cylinder inside, a plurality of shower nozzles are by pipeline and slow-release material pipe connection and be distributed in the whole coating district; Add anti-caking agent district and be provided with anti-caking agent interpolation point, dry-heat air import, fertilizer import and slowly-releasing material conduit inlet are located at the preheating zone of cylinder, and the slow release fertilizer outlet is located at the interpolation anti-hard caking agent district of cylinder.
Shower nozzle in the above-mentioned coating district is provided with gas phase pressurized gas and liquid phase sustained release dosage two-phase spraying nozzle or single liquid phase sustained release dosage spraying nozzle.
Above-mentioned anti-caking agent is added the anti-caking agent in district and added the different addition manner of some employing: 1. agent of liquid anti-caking and oily anti-skinning agent adopt spraying coating shower nozzle; 2. the agent of powder anti-caking adopts pipeline to march toward the addition manner of fertilizer the inside.
Advantage of the present invention is: technology is simple, easily row, device commonly are easy to promote, coating is effective, save cost.The coating of slow-release fertilizer is even, and slow release effect is obvious.And by the disposable slow release fertilizer of producing different slow-release time of the consumption of controlling slow release coated fertilizer.This technology can realize that large-scale continuous is stable living tight.
Description of drawings
Fig. 1 is the structural representation of coating device of the present invention.
Embodiment
Case one:
As shown in Figure 1: the coating device that a kind of slow release fertilizer water soluble resin dressing is produced, comprise material delivering plate, cylinder, shower nozzle, cylinder inside from left to right is divided into preheating zone, coating district, film forming district, adds the anti-hard caking agent district, cylinder inside is equipped with material delivering plate, and the angle of material delivering plate and inner wall of rotary drum formation is at 45 degree; The a plurality of shower nozzles of installation in the coating district of cylinder inside, a plurality of shower nozzles are by pipeline and slow-release material pipe connection and be distributed in the whole coating district; Add anti-caking agent district and be provided with anti-caking agent interpolation point, dry-heat air import, fertilizer import and slowly-releasing material conduit inlet are located at the preheating zone of cylinder, the slow release fertilizer outlet is located at the interpolation anti-hard caking agent district of cylinder, adds the powder anti-caking agent in anti-caking agent district and adopts pipeline to march toward the addition manner of fertilizer the inside.This device working process: composite fertilizer's fertilizer is at the uniform velocity entered the preheating zone of the cylinder of coating device by weighing belt, fertilizer is kicked up and heated, keep inlet temperature, fertilizer preheating temperature to 40～60 ℃ at 80～120 ℃ by material delivering plate; Fertilizer after the preheating enters the coating district, carries out even gas phase pressurized gas and liquid phase sustained release dosage two-phase spraying spraying coating by the multiple spot spraying method at the material delivering plate feed opening; Fertilizer behind the coating enters the film-forming district, and fertilizer is thrown film-forming under the effect of hot blast by material delivering plate uniformly, finishes release-controlled coated process; Release-controlled coated fertilizer after the oven dry enters anti-hard caking agent and adds the district, and according to the consumption interpolation powder anti-caking agent of 1kg anti-hard caking agent/T fertilizer, the mode that adopts pipeline to imbed the fertilizer the inside is added, and reaches the anti-caking purpose, and discharging gets final product storage package.
Case two:
As shown in Figure 1, the coating device that a kind of slow release fertilizer water soluble resin dressing is produced, comprise material delivering plate, cylinder, shower nozzle, cylinder inside from left to right is divided into preheating zone, coating district, film forming district, adds the anti-hard caking agent district, cylinder inside is equipped with material delivering plate, and the angle of material delivering plate and inner wall of rotary drum formation is at 75 degree; The a plurality of shower nozzles of installation in the coating district of cylinder inside, a plurality of shower nozzles are by pipeline and slow-release material pipe connection and be distributed in the whole coating district; Add anti-caking agent district and be provided with anti-caking agent interpolation point, dry-heat air import, fertilizer import and slowly-releasing material conduit inlet are located at the preheating zone of cylinder, and the slow release fertilizer outlet is located at the interpolation anti-hard caking agent district of cylinder; Adding the powder anti-caking agent in anti-caking agent district adopts pipeline to march toward the addition manner of fertilizer the inside.This device working process: composite fertilizer's fertilizer is at the uniform velocity entered the preheating zone of coating cylinder by weighing belt, fertilizer is kicked up and heated, keep inlet temperature, fertilizer preheating temperature to 40～60 ℃ at 80～120 ℃ by material delivering plate; Fertilizer after the preheating enters the coating district, carries out even single liquid phase sustained release dosage spraying spraying coating by the multiple spot spraying method at the material delivering plate feed opening; Fertilizer behind the coating enters the film-forming district, and fertilizer is thrown film-forming under the effect of hot blast by material delivering plate uniformly, finishes release-controlled coated process; Release-controlled coated fertilizer after the oven dry enters anti-hard caking agent and adds the district, and the consumption interpolation oily anti-skinning agent according to 0.5kg anti-hard caking agent/T fertilizer adopts the shower nozzle atomization to add in the mode on fertilizer surface, reaches the anti-caking purpose, and discharging gets final product storage package.
Claims (8)
1. slow release fertilizer water soluble resin dressing production method, it is characterized in that following these steps to carry out: the fertilizer that 1. will enter the preheating zone is kicked up by material delivering plate, the dry-heat air preheating is used in the preheating zone, and the dry-heat air temperature is at 80～120 ℃, and the temperature after the fertilizer preheating is at 40～60 ℃; 2. the fertilizer after the preheating enters the coating district, carries out the even spraying coating by the multiple spot spraying method at the material delivering plate feed opening; 3. the fertilizer behind the coating enters the film-forming district, and fertilizer is thrown film-forming under the effect of hot blast by material delivering plate uniformly, finishes release-controlled coated process; 4. the release-controlled coated fertilizer after the oven dry enters and adds the anti-hard caking agent district, and the anti-hard caking agent that adds 0.5-2 kilogram/ton reaches the anti-caking purpose, gets final product packing and storing.
2. according to the described slow release fertilizer water soluble resin of claim 1 dressing production method, it is characterized in that: described fertilizer is composite fertilizer or straight fertilizer.
3. according to the described slow release fertilizer water soluble resin of claim 1 dressing production method, it is characterized in that: described dry-heat air is hot blast, the hot blast that the oil bath heat transfer tube produces, the hot blast of Sweet natural gas hotblast stove generation or the hot blast that the coal hotblast stove produces that the electrically heated hotblast stove is produced.
4. according to the described slow release fertilizer water soluble resin of claim 1 dressing production method, it is characterized in that: described spraying coating is gas phase pressurized gas and liquid phase sustained release dosage two-phase spraying coating or single liquid phase sustained release dosage spraying coating.
5. according to the described slow release fertilizer water soluble resin of claim 1 dressing production method, it is characterized in that: the anti-hard caking agent that add in the anti-interface of described above-mentioned fertilizer is liquid anti-hard caking agent, oil-like anti-caking agent or powder anti-hard caking agent.
6. the coating device produced of a slow release fertilizer water soluble resin dressing, comprise material delivering plate, cylinder, shower nozzle, cylinder inside from left to right is divided into preheating zone, coating district, film forming district, adds the anti-hard caking agent district, it is characterized in that: cylinder inside is equipped with material delivering plate, and the angle of material delivering plate and inner wall of rotary drum formation is at the 45-75 degree; The a plurality of shower nozzles of installation in the coating district of cylinder inside, a plurality of shower nozzles are by pipeline and slow-release material pipe connection and be distributed in the whole coating district; Add anti-caking agent district and be provided with anti-caking agent interpolation point, dry-heat air import, fertilizer import and slowly-releasing material conduit inlet are located at the preheating zone of cylinder, and the slow release fertilizer outlet is located at the interpolation anti-hard caking agent district of cylinder.
7. according to the coating device of the described slow release fertilizer water soluble resin of claim 6 dressing production, it is characterized in that: the shower nozzle in the described coating district is provided with gas phase pressurized gas and liquid phase sustained release dosage two-phase spraying nozzle or single liquid phase sustained release dosage spraying nozzle.
8. according to the coating device of the described slow release fertilizer water soluble resin of claim 6 dressing production, it is characterized in that: the anti-caking agent interpolation point employing addition manner that the district is added in described anti-caking agent is: 1. agent of liquid anti-caking and oily anti-skinning agent adopt spraying coating shower nozzle; 2. the agent of powder anti-caking adopts pipeline to march toward the addition manner of fertilizer the inside.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101013965A CN102126896A (en) | 2011-04-22 | 2011-04-22 | Method for producing water-soluble resin coating of slow release fertilizer and coating device |
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| CN2011101013965A CN102126896A (en) | 2011-04-22 | 2011-04-22 | Method for producing water-soluble resin coating of slow release fertilizer and coating device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102399115A (en) * | 2011-10-24 | 2012-04-04 | 山东农大肥业科技有限公司 | Staged coating device for continuously producing coated controlled release fertilizer |
| CN102503670A (en) * | 2011-10-24 | 2012-06-20 | 山东农大肥业科技有限公司 | Continuous coating device for coated controlled-release fertilizer |
| CN103449913A (en) * | 2013-08-26 | 2013-12-18 | 湖北富邦科技股份有限公司 | Alternating photocuring coating roller for slow/controlled-release fertilizer |
| CN103449912A (en) * | 2013-08-26 | 2013-12-18 | 湖北富邦科技股份有限公司 | Synchronous photocuring coating roller for slow/controlled-release fertilizer |
| CN104692910A (en) * | 2014-11-25 | 2015-06-10 | 天津市施易得肥料有限公司 | Controlled-release fertilizer special particle speed changing device without secondary mixing |
| CN105439699A (en) * | 2015-11-26 | 2016-03-30 | 安徽六国化工股份有限公司 | Wrapping kiln for anti-blocking agents for compound fertilizer |
| WO2017206743A1 (en) * | 2016-05-31 | 2017-12-07 | 湖北富邦科技股份有限公司 | Method for rapid manufacturing of novel micronutrient-containing urea |
| CN109574760A (en) * | 2019-02-22 | 2019-04-05 | 五洲丰农业科技有限公司 | Fertilizer coating device and method |
| WO2020133697A1 (en) * | 2018-12-27 | 2020-07-02 | 湖北富邦科技股份有限公司 | Multi-functional continuous coating device for fertilizer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102399115A (en) * | 2011-10-24 | 2012-04-04 | 山东农大肥业科技有限公司 | Staged coating device for continuously producing coated controlled release fertilizer |
| CN102503670A (en) * | 2011-10-24 | 2012-06-20 | 山东农大肥业科技有限公司 | Continuous coating device for coated controlled-release fertilizer |
| CN103449913A (en) * | 2013-08-26 | 2013-12-18 | 湖北富邦科技股份有限公司 | Alternating photocuring coating roller for slow/controlled-release fertilizer |
| CN103449912A (en) * | 2013-08-26 | 2013-12-18 | 湖北富邦科技股份有限公司 | Synchronous photocuring coating roller for slow/controlled-release fertilizer |
| CN103449913B (en) * | 2013-08-26 | 2015-04-22 | 湖北富邦科技股份有限公司 | Alternating photocuring coating roller for slow/controlled-release fertilizer |
| CN103449912B (en) * | 2013-08-26 | 2015-08-12 | 湖北富邦科技股份有限公司 | A kind of slowly/controlled releasing fertilizer synchronous mode photocuring coating cylinder |
| CN104692910A (en) * | 2014-11-25 | 2015-06-10 | 天津市施易得肥料有限公司 | Controlled-release fertilizer special particle speed changing device without secondary mixing |
| CN104692910B (en) * | 2014-11-25 | 2017-05-17 | 天津市施易得肥料有限公司 | Special particle speed changing controlled-release fertilizer producing device without secondary mixing |
| CN105439699A (en) * | 2015-11-26 | 2016-03-30 | 安徽六国化工股份有限公司 | Wrapping kiln for anti-blocking agents for compound fertilizer |
| WO2017206743A1 (en) * | 2016-05-31 | 2017-12-07 | 湖北富邦科技股份有限公司 | Method for rapid manufacturing of novel micronutrient-containing urea |
| WO2020133697A1 (en) * | 2018-12-27 | 2020-07-02 | 湖北富邦科技股份有限公司 | Multi-functional continuous coating device for fertilizer |
| CN109574760A (en) * | 2019-02-22 | 2019-04-05 | 五洲丰农业科技有限公司 | Fertilizer coating device and method |
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Application publication date: 20110720 |