科技英语交流演讲.pptx

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科技英语交流演讲.pptx

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Controlled-ReleaseGranularPotassiumSulfateFertilisers

Reporter:LiHaonaMajor:ChemicalEngineeringandTechnology

Outline1234IntroductionPotashfertilizerProcessdescriptionProspects

1IntroductionTermssometimesusedsynonymouslySlowreleasefertilizersDelayed-releasefertilizersControlled-releasefertilizers(CRFs)

ThispictureshowsefficiencyofCRF.

Resincoatedfertilizerontheconditionofhydrolysis,effectivenutrientsrelease,especiallysuitableforhigheconomicvalueofcropsorganicmatterastheenvelope

Fullycoatedgranulecracks,poses,jointingtheadhesiveandinorganicmaterials.

BenefitsofControlled-ReleaseFertilizershighefficiencylowcostLessenvironmentalpollution

2potashfertilizerpotashisagoodqualityfertilizercontainingnochlorineelement,hasaveryprofoundinfluenceonthedevelopmentofagriculture.

powderfertilizergranularfertilizerSlowreleaseEasilyspreadShiftwithoutdust

Coated,controlled-releaseGranularfertilizers

Potashgranulationasanindustrialproductionathomeandabroad,hasingsinmanyaspects,itisdifficulttogranulate,andthegranuleistoosmall,poorshape.3Processdescription

ProcessflowofmanufacturegranularpotashfertilizersadhesivemixtureGranu-lationproductdraughtfandustextractionextractSmallparticles?largerparticlescoolingDesicc-ation?Screen-ingpackingpotashIngredi-ents

PangranulationoperationAddtheingredientsSpraythespecificadhesive

Onthepantheprocessofgranulation,granulesneedbeconstantlystirred,scatteredalongwiththerotatingpan.

4ProspectsInthepast3months,Ihavetriedseveraladhesives,suchascalciumsilicate,sodiumcarbonateandsoon.Next,myexperimentobjectivesaretoexplorenewdirection.Potassiumsulfateisnoteasytogranulate,becauseitisnotsticky,justlikesands.theuseofgeneraladhesivesisoftenlowviscosity,andtheg