Cov kauj ruam koom nrog hauv cov kab ua qoob loo feem ntau tuaj yeem muab faib ua ntau theem loj: kev npaj cov khoom siv raw, tu, ua, thiab ntim khoom.
Thawj kauj ruam yog kev npaj cov khoom siv raw, uas suav nrog kev sau, kev tshuaj xyuas ua ntej, thiab khaws cia cov nplej nyoos. Cov theem no yuav tsum tau xyuas kom meej tias cov nplej yog huv si, qhuav, thiab khaws cia nyob rau hauv ib tug categorized yam kom tiv thaiv tau cov impurities los yog spoilage los ntawm noo noo thiab pwm. Nyob ntawm seb hom qoob loo tshwj xeeb, kev kho mob ntxiv - xws li hulling lossis dehulling - kuj tseem tuaj yeem ua kom yooj yim rau kev ua haujlwm zoo ntawm cov cuab yeej ua haujlwm tom ntej.
Cov kauj ruam thib ob suav nrog kev tu thiab muab qhab nia, feem ntau siv txoj hauv kev xws li sieving, huab cua aspiration, thiab sib nqus sib nqus kom tshem tawm pob zeb, impurities, plua plav, thiab cov khoom hlau txawv teb chaws. Tom qab ntawd cov nplej ntxuav tau raug xa tawm los ntawm kev thauj mus los mus rau theem crushing lossis pulverizing, qhov twg nws raug crushing, sib tsoo, los yog milling kev kho mob raws li cov khoom tshwj xeeb. Qhov no yog ua raws li los ntawm kev ziab los yog dej txias los kho cov qoob loo cov dej noo kom tau raws li cov txheej txheem tshwj xeeb, yog li ua kom cov khoom tiav zoo. Rau cov khoom uas xav tau kev sib xyaw, kev sib xyaw ua ke thiab kev sib xyaw ua ke kuj tau ua los xyuas kom meej qhov sib txawv ntawm txhua yam khoom xyaw. Qhov kawg theem muaj xws li ntim thiab warehousing, nyob rau hauv cov txheej txheem cej luam tau ntim, kaw, thiab sau npe raws li specifications ua ntej xa mus rau lub chaw cia khoom los yog lub network tsheb thauj mus los. Thoob plaws hauv tag nrho cov txheej txheem ua tiav, qhov tseem ceeb yog muab tso rau ntawm cov khoom siv kom zoo, kev nyiam huv thiab kev nyab xeeb, thiab kev ua haujlwm zoo ntawm cov khoom siv, tag nrho nrog lub hom phiaj kawg ntawm kev lees paub cov khoom zoo thiab kev nyab xeeb khoom noj.
