Hauv cov hmoov nplej, kev ntxuav pib ua ntej - ntxuav. Thaum cov nplej tuaj rau hauv, nws nkag mus hauv lub tshuab no kom tshem tawm cov impurities - teeb tsa kom cov txheej txheem ntxiv tuaj yeem khiav tsis muaj kev cuam tshuam.
I. Lub luag haujlwm tseem ceeb: Tshem tawm cov ntxhib thiab lub teeb tsis huv
Lub luag haujlwm tseem ceeb ntawm tus ua ntej- ntxuav yog ua qhov pib, loj- nplai tu ntawm cov khoom nyoos tuaj, tshem tawm cov impurities uas loj dhau los yog hnyav dhau, uas yooj yim los ntawm cov khoom siv tom ntej.
Cov khoom tseem ceeb ntawm kev tshem tawm muaj xws li:
Coarse impurities:
Pob zeb loj, cib, clods ntawm lub ntiaj teb, twine, yas sheeting, woven hnab fragments, pob kws cobs, straw, ntoo chips
Lub teeb Impurities (ntawm qee tus qauv):
husks, weed noob
Fine Impurities (ntawm qee tus qauv):
Pob zeb me me, xuab zeb hais
II. Txoj hauj lwm nyob rau hauv Cov Txheej Txheem Hmoov Txheej
Cov khoom ua ntej -cov tshuaj ntxuav yog feem ntau yog nyob rau ntawm qhov pib ntawm kev ntxuav, piv txwv li, ua cov khoom siv thawj zaug tom qab tau txais cov nplej nyoos.
Txheej Txheem Flow Position:
Raw Grain Reception → Pre-Cleaner → Sib Nqus Separator (optional) → Tempering / Unclean Nplej Silos (Temporary Storage) → Tom ntej: Cov Khoom Siv Tu Tom ntej (Vibrating Separator, Destoner, Scourer, thiab lwm yam) → Damping & Conditioning → Milling
Yog vim li cas rau muab tso rau pem hauv ntej yog:
Cov impurities nyuaj zoo li cov pob zeb loj thiab cov hlau yuav ua rau cov ntxaij vab tshaus ntawm vibrating separators, decks ntawm destoners, lub beater ntsiab ntawm scourers, thiab ncaj qha hem kev nyab xeeb ntawm cov menyuam mills yog tias lawv nkag mus rau hauv cov khoom siv downstream.
Saj zawg zog impurities zoo li twine thiab yas ntawv yooj yim qhwv ib ncig ntawm bearings thiab pulleys ntawm conveying khoom, ua rau blockages thiab txawm cov khoom puas.
Tshem tawm cov plua plav loj thiab lub teeb impurities txo cov plua plav concentration hauv cov nqes qis, txhim kho qhov chaw ua haujlwm.
III. Txoj Cai Ua Haujlwm thiab Hom Lub Luag Haujlwm
Ua ntej- cov tshuaj ntxuav feem ntau siv lub hauv paus ntsiab lus ntawm sieving, feem ntau ua ke nrog huab cua aspiration lossis sib nqus sib nqus kom ua tiav qhov kev tshem tawm impurity.
Muaj peb hom loj:
1. Vibrating Pre-Ntev
Lub eccentric lossis vibratory lub cev muaj zog tsav lub vijtsam saum npoo los ua ib qho kev sib txuas lus lossis ncig. Cov khoom txav mus tom ntej hauv leaps ntawm qhov screen. Cov txheej txheem sab saud (nrog apertures loj) khaws cov coarse impurities, thaum lub vijtsam qis (nrog me apertures) khaws cov nplej huv si; nplua impurities thiab hmoov av poob los ntawm qhov screen.
Yam ntxwv: Cov qauv yooj yim, muaj peev xwm ua haujlwm loj, kev tshuaj ntsuam xyuas siab. Qhov no yog qhov kev xaiv tseem ceeb tam sim no, haum rau ntau yam hmoov nplej, tshwj xeeb tshaj yog loj thiab nruab nrab - qhov loj me.
2. Rotary Drum Pre-Ntev
Features ib tug polygonal los yog ncig rotating nruas nrog perforations. Lub nruas tig maj mam. Cov khoom nkag mus rau lub nruas; Raws li nws tig, cov nplej poob los ntawm cov perforations, thaum coarse impurities yog tawm los ntawm qhov kawg ntawm lub nruas.
Cov yam ntxwv: Kev tsim kho muaj zog, ua haujlwm zoo ntawm kev tshem tawm coarse impurities, kev ua haujlwm ruaj khov. Txawm li cas los xij, nws muaj cov hneev taw loj dua thiab tsim nyog rau cov xwm txheej uas xav tau siab ntxhib impurity tshem tawm kev ua haujlwm zoo thiab kev ua haujlwm loj.
3. Ua Ntej Ua Ntej -Ntev
Raws li lub vibrating npo lossis lub nruas npo, nws ua ke nrog lub zog aspiration thiab sib nqus sib nqus. Lub aspiration system tshem tawm lub teeb impurities (plua plav, awns, shriveled nplej), thiab cov hlau nplaum cais tshem tawm cov hlau nplaum sib nqus.
Cov yam ntxwv: kev ua haujlwm sib xyaw ua ke, kev tu kom zoo, kev sib txuam ua ke. Haum rau niaj hnub hmoov mills nrog qib siab ntawm automation.
IV. Kev Ua Haujlwm
Siv lub vibrating ua ntej- ntxuav ua piv txwv, cov txheej txheem ua haujlwm yog raws li hauv qab no:
Infeed: Cov nplej nyoos nkag mus rau hauv cov khoom noj khoom noj ua ntej - ntxuav ntawm cov khoom siv thauj khoom thiab sib npaug sib npaug rau ntawm qhov screen.
Kev tshuaj ntsuam:
Sab saum toj Screen: Cov qhov qhib yog loj -feem ntau yog φ8–12 mm los yog cov duab plaub. Cov khoom ntxhib xws li pob zeb, twine, thiab straw tsis tuaj yeem hla; lawv tsuas yog xaub tawm ntawm qhov screen thiab tawm cov coarse impurity paug.
Hauv qab Screen: Qhov qhib me me, feem ntau yog φ2.5–4.0 mm. Cov nplej huv si nyob rau saum toj thiab txav mus rau lub qhov hluav taws xob huv si. Cov khoom zoo- plua plav, pob zeb me me, tawg kernels- ntog los ntawm thiab tau tawm raws li qhov qis dua.
Aspiration (yog tias muaj): Ib lub tshuab aspiration rub tawm lub teeb impurities-awns, shriveled nplej, plua plav-thaum pub mis los yog tshuaj ntsuam, thiab khaws cia rau hauv ib qho chaw.
Sib Nqus Sib Nqus (yog tias muaj): Cov hlau nplaum (nruab mus tas li lossis electromagnetic) zaum ntawm qhov nkag los yog qhov hluav taws xob kom ntes thiab tshem tawm cov khoom siv hlau nplaum.
Tshem tawm: Ntxuav cov nplej taub hau rau hauv lub silos rau ib ntus cia. Coarse impurities, nplua impurities, lub teeb impurities, thiab hlau paug txhua tus mus rau lawv tus kheej sau cov ntsiab lus.
V. Cov Txheej Txheem Txheej Txheem tseem ceeb thiab lawv qhov cuam tshuam
Qhov kev ua tau zoo ntawm cov khoom ua ntej- ntxuav ncaj qha cuam tshuam rau kev ua haujlwm thiab kev ruaj ntseg ntawm tag nrho cov seem tu:
Kev Ua Haujlwm Muaj Peev Xwm: Yuav tsum phim cov hmoov zeb qhov ntau lawm. Rau 100-tuj / hnub zeb, lub peev xwm ua ntej yuav tsum yog 120-150 tons / hnub (xav txog qhov siab tshaj plaws).
Screen Aperture Configuration: Qhov kev xaiv ntawm aperture loj thiab cov duab yog qhov tseem ceeb. Yog tias me me dhau, cov ntxaij vab tshaus tuaj yeem txhaws, thiab qee cov nplej huv si yuav raug tshuaj xyuas tsis raug nrog cov impurities. Yog tias loj heev, qee qhov ntxhib impurities yuav dhau mus rau cov khoom siv hauv qab.
Kev soj ntsuam Efficiency: Kev faib ua feem ntawm impurities zoo tshem tawm ntawm cov nplej huv. Ib qho ua tau zoo ua ntej- ntxuav yuav tsum tshem tawm ntau tshaj 95% ntawm cov impurities ntxhib thiab ib feem tseem ceeb ntawm lub teeb impurities.
Nplej Poob Hauv Kev Tsis Pom Zoo: Qhov feem ntawm cov nplej huv si sib xyaw rau hauv cov impurities tawm. Qhov no yog qhov qhia txog kev lag luam tseem ceeb ntawm ua ntej -kev ua haujlwm huv. Cov qoob loo poob siab qhia tau hais tias cov khoom siv raw khoom khib nyiab thiab yuav tsum tau ua haujlwm hloov kho.
Tus kheej- Kev Muaj Peev Xwm Huv: Txawm hais tias lub ntsej muag ntawm lub ntsej muag tuaj yeem ua rau txhaws thiab txawm tias ntxuav cov khoom siv (xws li, bouncing balls, tu txhuam) yog nruab ncaj qha cuam tshuam rau kev ruaj ntseg ntawm kev ua haujlwm tas mus li.
VI. Cov ntsiab lus
Txawm hais tias yooj yim heev hauv kev tsim kho, tus ua ntej- ntxuav tu tuav txoj haujlwm tsis tuaj yeem hloov pauv hauv cov hmoov nplej:
Cov cuab yeej tiv thaiv: Nws yog thawj thiab tseem ceeb tshaj plaws ntawm cov cuab yeej tiv thaiv kev tiv thaiv, tiv thaiv kev puas tsuaj rau cov khoom siv kim tom ntej (tshwj xeeb tshaj yog cov menyuam mills) tshwm sim los ntawm ntxhib impurities.
Kev Tshawb Fawb Txog Kev Tsim Nyog: Los ntawm kev tshem tawm yooj yim tangled impurities zoo li twine thiab yas ntawv, nws ua kom ruaj khov ntawm cov txheej txheem xa khoom thiab txo qis qis qis.
Lub hauv paus rau Kev Ua Haujlwm Zoo: Nws tsim cov kev ua haujlwm zoo rau cov khoom siv tu hauv qab kom zoo, tso cai rau lawv tsom mus rau kev tshem tawm cov impurities zoo ib yam li cov nplej ("zoo ib yam- loj impurities"), yog li txhim kho tag nrho cov kev ua haujlwm ntawm kev tu.
Piv txwv hais tias, tus ua ntej- ntxuav yog "tus neeg ncaws pob" ntawm cov hmoov nplej. Nyob rau hauv pem hauv ntej ntawm tag nrho cov txheej txheem tsim khoom, nws siv txoj hauv kev muaj zog thiab muaj txiaj ntsig los thaiv qhov pom tseeb tshaj plaws thiab txaus ntshai "invaders," tso lub hauv paus ruaj khov rau kev nyab xeeb thiab ua haujlwm tau zoo ntawm txhua yam khoom siv tom qab.
