Cov txheej txheem ua tiav ntawm cov khoom noj pellet zeb tuaj yeem muab faib ua peb theem: ua ntej-kev npaj pelleting, pelleting, thiab tom qab- ua. Cov kauj ruam ua tiav yog raws li hauv qab no:
Raw khoom pretreatment: Raws li kev pub mis formulation xav tau ntawm cov tsiaj nyeg, thawj zaug grind raw cov ntaub ntawv xws li pob kws, straw, thiab soybean pluas noj, tswj lub fineness ntawm grind: feem ntau, qhov sib tsoo ntev yuav tsum tsawg tshaj li 10 hli thiab fineness tsawg tshaj li 2 hli. Nyob rau tib lub sijhawm, cov dej noo ntawm cov khoom siv raw yuav tsum tswj tsis pub dhau 12% -20%, vim tias cov dej noo ntau dhau los yog qis yuav cuam tshuam rau kev tsim cov nyhuv.
Kev sib xyaw thiab kev sib xyaw: Sib tov cov khoom siv hauv av nrog cov additives thiab premixes sib npaug. Cov ntaub ntawv raw cov ntaub ntawv tsawg dua 1% yuav tsum tau dilution stepwise thiab premixing kom ntseeg tau tias sib tov sib xyaw thiab tsis txhob faib cov khoom noj tsis sib xws. Tom qab sib tov, tswj cov dej noo ntawm cov khoom nyob rau hauv qhov kev txwv, feem ntau tsis tshaj 12%.
Kev pub mis thiab Extrusion: Ua ntej- cov khoom siv kho mob tau muab tso rau hauv lub tshuab pellet lub hopper thiab tom qab ntawd mus rau hauv qhov chaw extrusion ntawm lub siab chais thiab tuag (flat die) / tuag kab noj hniav (ntiv nplhaib tuag) ntawm cov khoom noj. Lub siab rollers tig nyob rau hauv lub hwj chim, tsis tu ncua extruding cov ntaub ntawv raw rau hauv qhov sib thooj tuag qhov, compacting cov hmoov xoob rau hauv elongated strips.
Txiav thiab Shaping: Cov strips extruded yog txiav los ntawm ib tug rotating cutter rau hauv qhov yuav tsum tau ntev (feem ntau 2-5 zaug lub pellet txoj kab uas hla), ua kom tiav cov thawj pelleting txheej txheem. Kev sib txhuam thaum lub sij hawm extrusion generates kub, ua rau cov hmoov txhuv nplej siab nyob rau hauv cov ntaub ntawv raw kom paub tab thiab cov protein kom coagulate, yog li txhim kho cov khoom noj muaj txiaj ntsig ntawm cov khoom noj.
Koj puas xav tau kuv los pab koj txhim kho cov txheej txheem tsim khoom ntawm lub tsev me me pellet zeb? Ua kom zoo dua rau kev ua haujlwm ntawm kev ua liaj ua teb hauv tsev.