Fertilizer granulation txheej txheem

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Cov txheej txheem chiv granulation yog ib kauj ruam tseem ceeb hauv kev tsim cov chiv zoo.Nws suav nrog kev hloov cov ntaub ntawv raw rau hauv granules uas yooj yim rau kev tuav, khaws cia, thiab siv.Granulated chiv muaj ntau yam txiaj ntsig, nrog rau kev txhim kho cov khoom noj khoom haus, txo cov zaub mov tsis zoo, thiab txhim kho qoob loo.

Theem 1: Kev npaj raw khoom
Thawj theem ntawm cov txheej txheem chiv granulation suav nrog kev npaj cov ntaub ntawv raw.Qhov no suav nrog kev nrhiav thiab xaiv cov khoom tsim nyog raws li qhov xav tau ntawm cov khoom noj muaj pes tsawg leeg thiab lub cev lub cev.Cov khoom siv raw rau cov chiv muaj xws li cov khoom siv nitrogen (xws li urea lossis ammonium nitrate), phosphorus qhov chaw (xws li phosphate pob zeb lossis phosphoric acid), thiab cov khoom siv poov tshuaj (xws li potassium chloride lossis potassium sulfate).Lwm cov micronutrients thiab additives kuj tseem tuaj yeem suav nrog hauv cov qauv.

Kauj Ruam 2: Sib tov thiab sib tov
Thaum cov khoom siv raw raug xaiv, lawv dhau los ua kev sib xyaw thiab sib xyaw.Qhov no ua kom lub homogenous faib ntawm cov as-ham thoob plaws hauv cov chiv sib tov.Kev sib tov tuaj yeem ua tiav siv ntau yam khoom siv xws li lub tshuab nruas sib tov, paddle mixers, lossis kab rov tav mixers.Lub hom phiaj yog kom ua tiav ib qho kev sib xyaw ua ke uas muab cov khoom noj muaj txiaj ntsig zoo rau cov zaub mov zoo cog.

Kauj Ruam 3: Granulation
Lub granulation theem yog qhov uas cov khoom siv chiv sib xyaw tau hloov mus rau hauv granules.Muaj cov txheej txheem granulation sib txawv, suav nrog:

Nruas Granulation: Nyob rau hauv txoj kev no, cov chiv sib tov yog pub rau hauv lub nruas rotating granulator.Raws li lub nruas rotates, cov khoom adheres rau saum npoo thiab cov ntaub ntawv granules los ntawm ib tug ua ke ntawm dov, agglomeration, thiab loj loj.Tom qab ntawd cov granules tau qhuav kom tshem tawm cov dej noo ntau dhau thiab txhim kho kev ruaj ntseg.

Extrusion Granulation: Extrusion granulation yuav tsum yuam cov chiv sib tov los ntawm ib qho extruder, uas muaj cov tuag nrog qhov ntau thiab tsawg thiab cov duab.Lub siab thiab shear rog ua rau cov khoom tsim cylindrical los yog kheej kheej granules raws li nws yog extruded los ntawm cov tuag.Cov granules yog tom qab ziab kom ua tiav cov ntsiab lus noo noo xav tau.

Txau Granulation: Hauv cov tshuaj tsuag granulation, cov kua tshuaj ntawm cov chiv sib tov, xws li cov tshuaj urea lossis phosphoric acid, yog atomized rau hauv cov dej zoo.Cov tee no yog tom qab ntawd txau rau hauv chav ziab khaub ncaws uas lawv solidify rau hauv granules los ntawm evaporation ntawm cov kua.Cov txiaj ntsig granules tau qhuav ntxiv kom ncav cuag qhov xav tau noo noo.

Theem 4: Qhuav thiab txias
Tom qab cov txheej txheem granulation, cov granules tsim tshiab feem ntau yog qhuav thiab txias los txhim kho lawv cov stability thiab tiv thaiv caking.Qhov no yog ua los ntawm cov khoom siv tshwj xeeb ziab thiab cua txias xws li cov tshuab ziab khaub ncaws los yog cov tshuab ntxhua khaub ncaws fluidized.Cov txheej txheem ziab kom tshem tawm cov dej noo ntau dhau, thaum cov txheej txheem txias yuav txo qhov kub ntawm cov granules ua ntej ntim lossis ua ntxiv.

Qhov zoo ntawm Granulated Fertilizers:

Tswj Kev Tso Tawm Ntawm Cov Khoom Noj: Granulated chiv tuaj yeem tsim los tso cov khoom noj maj mam, muab cov khoom noj muaj txiaj ntsig zoo rau cov nroj tsuag nyob rau lub sijhawm ntev.Qhov no txhawb nqa cov khoom noj muaj txiaj ntsig zoo thiab txo qhov kev pheej hmoo ntawm cov as-ham leaching lossis dej ntws.

Uniform Nutrient Distribution: Cov txheej txheem granulation kom ntseeg tau tias cov as-ham raug faib sib npaug hauv txhua granule.Qhov no tso cai rau kom muaj cov khoom noj muaj txiaj ntsig zoo ib yam thiab txhawb nqa los ntawm cov nroj tsuag, ua rau cov qoob loo zoo sib xws thiab txhim kho cov qoob loo.

Txhim khu kev tuav thiab kev siv: Granulated chiv tau txhim kho lub cev, xws li nce ceev thiab txo plua plav.Cov yam ntxwv no ua rau lawv yooj yim dua los tuav, thauj, thiab siv cov khoom siv sib kis, ua rau cov ntaub ntawv muaj txiaj ntsig ntau dua thiab siv tau zoo.

Txo cov zaub mov poob: Granulated chiv muaj qis solubility piv rau cov hmoov los yog crystalline chiv.Qhov no txo ​​qhov kev pheej hmoo ntawm cov as-ham poob los ntawm leaching lossis volatilization, kom ntseeg tau tias muaj ntau dua ntawm cov khoom siv rau cov nroj tsuag.

Cov txheej txheem chiv granulation ua lub luag haujlwm tseem ceeb hauv kev hloov cov ntaub ntawv raw rau hauv cov khoom siv zoo granulated.Los ntawm cov theem xws li kev npaj cov khoom siv raw, sib tov thiab sib xyaw, granulation, thiab ziab thiab txias, cov txheej txheem tsim cov khoom sib xws, tswj-tso granules nrog txhim kho cov khoom noj khoom haus thiab txhim kho cov khoom tuav.Granulated chiv muaj cov txiaj ntsig xws li kev tswj hwm kev tso tawm, cov khoom noj tsis sib xws, kev yooj yim ntawm kev tuav, thiab txo cov khoom noj tsis zoo.


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