1. Raw Material Factors
Raw khoom yam cuam tshuam ncaj qha rau cov nyhuv pelleting. Cov ntaub ntawv uas muaj cov hmoov txhuv nplej siab tau yooj yim gelatinized los ntawm chav. Tom qab txias, cov khoom siv raw no muaj qee qhov viscosity, uas muaj txiaj ntsig zoo rau kev tsim cov pellet. Rau cov khoom siv raw nrog cov ntsiab lus siab ntawm cov roj hmab, ntxiv qee cov roj tuaj yeem txo qhov kev sib txhuam ntawm cov khoom thiab lub nplhaib tuag thaum lub sij hawm pelleting, uas yog qhov zoo rau cov khoom kom dhau los ntawm lub nplhaib tuag thiab cov pellets muaj qhov zoo dua tom qab tsim. Feem ntau, tus nqi ntxiv yog kwv yees li 1%. Ntxiv roj ntau dhau tuaj yeem ua rau cov pellets xoob. Yog tias xav tau cov roj ntau ntxiv, kev txau tom qab pelleting tuaj yeem txiav txim siab, uas yog tshwj xeeb tshaj yog tsim rau kev tsim cov khoom siv hluav taws xob siab -. Qhov loj me me ntawm cov khoom siv crushed txiav txim siab thaj tsam ntawm cov khoom noj muaj pes tsawg leeg. Qhov loj dua qhov me me, qhov loj dua ntawm qhov chaw, qhov ceev ntawm cov khoom absorbs ya raws ntawm chav, uas yog qhov zoo rau cov khoom txias thiab yooj yim pelleting. Los ntawm qhov kev xav ntawm pelleting, finer crushing ua rau ntau dua pelleting siv, tab sis yuav tsum tau ntau chav, thiab nws yog nquag mus clogging yog tsis ceev faj. Tsis tas li ntawd, kev nplua ntau dhau ntawm cov khoom siv raw ua rau kev siv hluav taws xob ntau dhau. Qhov hnyav hnyav hnyav hnyav ua rau lub nplhaib tuag thiab lub siab rau cov menyuam, ua rau pelleting nyuaj, tshwj xeeb tshaj yog nrog me me -inch ntiv nplhaib tuag. Qhov no kuj ua rau tsis zoo gelatinization, ua rau cov khoom siv siab, tsis tshua muaj txiaj ntsig, thiab cov hmoov hmoov siab hauv cov pellets. Yog li ntawd, rau cov tsiaj nyeg thiab nqaij qaib pub ntau lawm, 2.5-3.0 hli sieve yog pom zoo rau crushing pob kws. Qhov no zam qhov tsis zoo ntawm qhov loj me me me me thaum ua kom ntseeg tau qhov tsim nyog particle loj rau kev pub noj kom zoo, yog li txo cov hmoov cov ntsiab lus hauv cov pellets. Tsis tas li ntawd, kev saib xyuas yuav tsum tau them rau qhov sib xws ntawm kev sib xyaw ua ntej pelleting. Vim hais tias pub formulations yog complex thiab qhov tshwj xeeb gravities ntawm ntau yam raw cov ntaub ntawv sib txawv heev, txawv mixing sij hawm yuav tsum tau siv rau txawv formulations thiab ntau yam kom ua tau ib tug uniformity variation coefficient ntawm kwv yees li 5%.
2. Pub Flow Control
Txhawm rau ua kom lub pellet zeb ua haujlwm tsis tu ncua thiab sib npaug ntawm tag nrho cov khoom, cov khoom ntws nkag mus rau hauv lub zeb yuav tsum ua kom tau raws li qhov yuav tsum tau ua pelleting. Cov qauv pub mis yuav tsum tau zoo tshem tawm kev sib tshuam pub mis los ntawm agglomeration. Siv lub SZLH40 pellet zeb ua piv txwv, cov khoom ntws tus nqi yuav tsum tsis txhob tsawg dua 10T / H. Txhawm rau kom ruaj khov cov khoom ntws hauv cov khoom siv tiag tiag los ntawm kev kho cov khoom noj, ib txoj hauv kev tsim nyog yog txhawm rau txhim kho qhov tsis sib xws ncaj qha saum lub tshuab pellet. Yog tias tsis muaj qhov tsis zoo no, lossis nrog cov yeeb nkab txuas ntev (tshaj 0.5m) ntawm qhov tsis sib xws thiab cov khoom noj khoom haus, nws yog ib qho nyuaj los lav qhov kev noj zaub mov ruaj khov. Ntau lub mills pub, thaum muaj qhov txawv txav pellet zeb efficiency, tsom rau ntawm lub pellet zeb nws tus kheej, tsis saib xyuas cov khoom noj. Hauv kev muaj tiag, ntau zaus, kev ua haujlwm tsawg zuj zus yog tshwm sim los ntawm cov khoom noj tsis ruaj khov. Feem ntau, thaum lub tshuab pellet ua haujlwm tau zoo thiab ib txwm muaj, cov khoom siv hluav taws xob txaus txaus, lub rooj vag pub yog qhib tag nrho, thiab lub feeder ceev tau hloov kho rau tus nqi ntsuas thaum lub ntsiab lub cev muaj zog tsis tu ncua mus txog nws cov nqi khiav lag luam, nws tuaj yeem txiav txim siab tias cov khoom noj tsis txaus. Hauv qhov no, qhov laj thawj yuav tsum raug txheeb xyuas thiab hais txog.
3. Kev ua haujlwm ntau lawm
Tswj qhov sib txawv ntawm lub siab rau cov menyuam thiab cov tuag. Yog tias qhov sib txawv me dhau, qhov tuag thiab cov menyuam yuav hnav tau yooj yim thiab ua suab nrov ntau dhau; Yog tias qhov sib txawv loj dhau, nws yuav cuam tshuam rau cov khoom siv extrusion. Qhov sib txawv yog feem ntau tswj ntawm 0.05 thiab 0.30 hli. Lub ntsuas ntsuas ntsuas tuaj yeem siv rau kev ntsuas thaum hloov kho; Kev tshuaj xyuas qhov muag kuj tseem siv tau yog tias tsis muaj qhov ntsuas qhov ntsuas siab. Ua ib qho kev tuag tshiab thiab cov menyuam yaus ua piv txwv, cov tuag thiab cov menyuam yuav tsum tshwm sim yuav luag kov, tab sis thaum tsis muaj cov khoom siv, lub ntsiab tseem ceeb yuav tsum tig kom cov tuag tsis tuaj yeem txav mus rau cov menyuam. Nws yog ib qho tseem ceeb tshwj xeeb tshaj yog tias tus tuag tshiab yuav tsum tau ua ke nrog cov menyuam tshiab, thiab qhov sib txawv yuav tsum me me. Tsis tas li ntawd, cov menyuam yuav tsum muaj roj txaus (feem ntau yog siab -kub resistant lithium-raws li roj No. 7) los tiv thaiv cov bearings los ntawm kub kub heev. Kev pub noj scraper yuav tsum tau kho; txwv tsis pub, cov khoom yuav muaj teeb meem nkag mus rau ntawm cov menyuam thiab tuag, thiab qee cov khoom yuav nchuav tawm ntawm lub hau tuag, ua rau cov khoom pulverized. Qhov kev hloov kho yuav tsum xyuas kom meej tias qhov sib txawv ntawm lub ntug nkhaus ntawm lub scraper thiab lub hau tuag / tuag yog kwv yees li 2-3 hli, thiab lub hauv ntej kawg ntawm lub scraper yuav tsum tsis txhob ncua dhau ntawm qhov txiav hauv qhov tuag puab lub qhov. Tom qab txhua qhov chaw ntawm lub pellet zeb raug kho, lub pellet zeb tuaj yeem pib. Ua ntej, pib lub pellet zeb, txias, thiab feeder; Nyob rau lub sijhawm no, tus feeder yuav tsum nyob rau hauv lub xeev pub tsawg. Txhawm rau tiv thaiv cov khib nyiab los ntawm kev nkag mus rau hauv qhov tuag, lub qhov rooj tawm sab nraud ntawm lub qhov rooj tswj yuav tsum qhib kom ntws cov khoom sib xyaw nrog cov khib nyiab. Thaum cov khib nyiab raug tshem tawm, cov khoom tuaj yeem nkag mus rau hauv qhov tuag. Raws li kev ceev faj, tuav lub rooj vag tawm sab nraud thiab tso cai rau qee yam khoom nkag mus rau hauv qhov tuag ua ntej, tom qab ntawd saib seb puas muaj cov khoom tawm mus zoo, thaum tib lub sijhawm saib xyuas qhov kev hloov pauv tam sim no. Yog tias cov khoom tsim tawm ib txwm muaj, qhov tam sim no tseem ruaj khov nrog qhov hloov pauv me me thiab tsis ncav cuag qhov ntsuas tam sim no, tom qab ntawd cov khoom ntws tuaj yeem nce ntxiv, nrog rau cov zis tawm.
4. Nplhaib Tuag
Txawm hais tias cov khoom tuaj yeem raug nyem los ntawm kev tuag thaum lub sij hawm granulation yog nyob ntawm lub siab thiab kev sib txhuam generated nyob rau hauv qhov tuag orifice. Qhov no muaj feem xyuam rau cov coefficient ntawm kev sib txhuam ntawm cov khoom thiab cov phab ntsa tuag, cov ntsiab lus noo noo, raw khoom particle loj, qhov kub thiab txias, lub sij hawm tsis zoo ntawm cov yas deformation ntawm cov khoom, thiab compressibility ntawm cov khoom. Cov yam ntxwv no zoo sib xws rau qhov tob thiab txoj kab uas hla ntawm qhov tuag qhov chaw. Feem ntau hais lus, qhov sib piv ntawm qhov chaw tuag yuav tsum nyob nruab nrab ntawm 1: 8 thiab 1: 13 (piv txwv li, qhov sib piv ntawm qhov chaw tuag rau qhov zoo ntawm qhov tuag). Qhov sib piv me me ua rau lub sijhawm luv luv ntawm qhov chaw tuag, ua rau cov khoom tsis tshua muaj nyob rau hauv lub qhov ncauj thiab yooj yim extrusion los ntawm cov tuag. Qhov no ua rau cov zis ntau dua, tab sis cov pellets yog xoob, muaj cov hmoov nplej siab, thiab cov tsos ntxhib. Hloov pauv, qhov ntev ntev ntawm qhov compression orifice ua rau lub siab ntawm cov khoom nyob rau hauv lub qhov ncauj, uas ua rau denser, smoother, thiab siab dua - zoo pellets nrog txo cov ntsiab lus hmoov. Txawm li cas los xij, qhov no txo cov pellet zeb cov zis thiab ua kom lub zog noj ib tuj. Yog li ntawd, cov neeg tsim khoom noj khoom noj yuav xaiv qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv thaum tsim cov pellets ntawm cov khoom sib txawv thiab ntau yam.
