Granulation hais txog kev ua haujlwm ntawm cov ntaub ntawv hauv lub xeev cov hmoov, yaj, cov kua aqueous, thiab lwm yam rau hauv granules nrog qee yam duab thiab qhov loj. Nyob rau tam sim no, txheej txheem txheej txheem granulation siv los ntawm cov chaw lag luam suav suav nrog extrusion granulation thiab shear granulation.
Ntawm lawv, cov txheej txheem extrusion granulation yog hais txog tus qauv ntawm cov tshuaj sib xyaw cov tshuaj thiab cov khoom siv pabcuam hauv cov tshuaj sib npaug, ntxiv cov nplaum los ua cov khoom muag, thiab tom qab ntawd granulating cov khoom mos los ntawm ib sab cib nrog qee qhov loj los ntawm kev yuam extrusion Cov.
Kev lag luam tau hais tias nyob rau hauv cov txheej txheem ntawm extrusion granulation, ua cov ntaub ntawv mos (kneading) yog cov kauj ruam tseem ceeb. Chav dej ntub thiab qhuav ntawm cov khoom muag muag yuav tsum haum. Ntau cov khoom lag luam yog ua raws kev paub. Nws tuaj yeem zuaj ua ke yam tsis tuav ntawm tes, thiab tuaj yeem sib tsoo los ntawm lub teeb siab nrog cov ntiv tes. Tus nqi ntawm wetting tus neeg sawv cev lossis cov nplaum yog nyob ntawm qhov xwm ntawm cov khoom.
Tam sim no, cov extrusion granulators ntawm kev ua lag luam suav nrog ntsia hlau extrusion hom, teb hom extrusion, viav vias extrusion hom thiab lwm cov khoom siv granulation. Cov yam ntxwv yog txawv thiab qhov haujlwm yog txawv.
Muab kauv extrusion granulator
Ntawm lawv, tus yam ntxwv ntawm tus ntsia hlau extrusion granulator yog tias lub hau ntswj extrusion tuaj yeem txias lossis rhaub; lub thoob extruded chim adopts kev sib cais qauv, thiab ntsia liaj qhov rooj tuaj yeem tshem tawm kom yooj yim qhib lub thoob thiab yooj yim los ntxuav. Tsis tas li ntawd, cov ntsia hlau extruder granulator tuaj yeem nruab nrog rab riam txiav los kho qhov ceev uas tsim nyog kom tau txais cov granules luv ntawm qhov xav tau ntev. Tam sim no, ntsia hlau extrusion granulator yog qhov tsim nyog rau cov khoom lag luam uas yuav tsum tau muab cov kev lag luam hauv kev lag luam xws li cov roj hmab quav, cov khoom noj ntxiv, yas ntxiv, catalysts, tshuaj tua kab, dyes, pigments, tshuaj lag luam thiab tshuaj niaj hnub.
Qeeb mentshis extrusion granulator
Qeeb mentshis extruding granulator yog qhov sib tov ntawm cov ntaub ntawv mos mos tusyees, hauv qab nyem ntawm rab riam dov, cov khoom raug yuam kom dhau ntawm lub vijtsam, thiab raug txiav los ntawm tus scraper kom tau txais cov lus zoo cylindrical ntawm ntev ntev. Nws yog tsiag ntawv los ntawm kev tsis kub extrusion kub nce, me me extrusion aperture thiab loj extrusion tso zis, thiab yog qhov tshwj xeeb tshaj yog haum rau cov granulation ntawm cov khoom khov. Txawm li cas los xij, tseem muaj tus siv tshuaj tiv thaiv. Hauv cov granulation ntawm nplaum tsoos suav tshuaj cov ntaub ntawv muag khoom, lub tshuab ua kom loj zuj zus granulator ua kom muaj cua sov ntau thaum txheej txheem txheej txheem txheej txheem. Cov khoom mos mos dhau lawm. Tsis tas li ntawd, cov granulation centrifugal yog qhov yooj yim rau kev cog lus thiab yuav tsum tswj Tswj qhov nrawm, lub sijhawm thiab huab cua kom tsawg ntawm cov centrifugal granulation.
Viav vias extrusion granulator
Lub viav vias extrusion granulator yog tsim tshwj xeeb rau kev lag luam tshuaj, khoom noj khoom haus, kev kho mob thiab lwm yam lag luam. Lub tshuab granulates nyob rau ntawm chav tsev kub, thiab cov hmoov ntxiv ntxiv rau lub plhaw thaum ua haujlwm los ua cov granules ncaj qha, ua rau tib lub sijhawm, uas tsis tsuas yog txuag cov nqi tab sis kuj txhim kho cov khoom zoo. Cov granules uas tau tsim yog du thiab qaim, nrog kev sib txig sib xyaw, uas yog yooj yim rau kev tsim cov ntsiav tshuaj, ntim khoom thiab chaw cia khoom, thiab tshuaj ntsiav ntau lawm.
Qhia hauv kev lag luam, viav vias extrusion granulator muaj lub zog siv qis, suab nrov, ua haujlwm siab, ua haujlwm yooj yim thiab txij nkawm yooj yim; lub nruas yog yooj yim disassemble thiab yooj yim los ntxuav. Qhov screen yog yooj yim los hloov; cov cuab yeej xa khoom siv tau kaw rau hauv lub tshuab siv lub tshuab, thiab kev ua haujlwm tau zoo; qhov chaw nyob rau hauv kev sib cuag nrog cov khoom yog ua los ntawm steel hlau, uas muaj qhov zoo xws li cov kav ntev thiab yog siv dav hauv tam sim no. Txawm li cas los xij, viav vias extrusion granulator tsis haum rau cov khoom ua kua, ua kua, slurry lossis kev sib tsoo.