Hauv kev lag luam ntim granule, ntim khoom ncaj qha txiav txim siab cov khoom txee lub neej, kev nyab xeeb kev thauj mus los, thiab kev sib tw ua lag luam. Lub tshuab nqus tsev kawm ntawv, qhov kub thiab txias sealing, thiab lub sij hawm shaping yog raws nraim peb qhov tseem ceeb uas tswj kev ntim khoom zoo. Ntau lub lag luam feem ntau ntsib teeb meem xws li sealing to, cov khoom oxidation thiab deterioration, thiab ntim deformation los yog puas vim kev xaiv tsis raug. Mastering qhov kev xaiv logic ntawm peb qhov tsis muaj no yog tus yuam sij rau kev txhim kho ntim khoom zoo.
Lub tshuab nqus tsev kawm ntawv yog lub hauv paus ntawm "freshness preservation" rau granule ntim, uas yuav tsum tau hloov kho raws li tus yam ntxwv ntawm granules. Rau cov nplej, cereals, thiab cov khoom qhuav, cov khoom siv nqus tsev vacuum ntawm -0.09 MPa tuaj yeem siv los cais cov pa oxygen kom zoo thiab tiv thaiv kab mob mildew. Rau cov granules tsis yooj yim xws li cov zaub mov puffed, yuav tsum "tso qis qis qis" txoj kev kom tsis txhob muaj qhov tawg los ntawm lub siab. Rau cov granules uas muaj cov kab dej noo, cov twj tso kua mis yuav tsum tau tswj kom tsis txhob ya raws ntawm cov khoom ua kom zoo. Lub tshuab nqus tsev ntau dhau yuav ua rau lub hnab ntim ntim kom nruj rau cov granules thiab ua rau kev puas tsuaj, thaum lub tshuab nqus tsev tsis txaus tsis ua tiav cov txiaj ntsig zoo khaws cia.
Sealing kub yog ncaj qha ntsig txog qhov ruaj khov ntawm lub foob, thiab cov tub ntxhais yog kom phim cov yam ntxwv ntawm cov khoom ntim. PE cov khoom ntim hnab yog tsim rau qhov kub thiab txias ntawm 120-180 degree; PP cov khoom yuav tsum tau kub ntawm 140-200 degree; Composite films xav tau 160-220 degree. Rau cov hnab tuab, qhov ntsuas kub yuav tsum tau nce raws li lub sijhawm sib khi txuas ntxiv, thaum lub hnab nyias nyias, qhov ntsuas kub yuav tsum tau txo kom tsis txhob yaj. Shaping lub sij hawm xav tau kom sib npaug zoo li thiab efficiency: lub sij hawm ntev shaping yuav ua rau particle caking, thaum lub sij hawm luv luv ua rau cov khoom ntim tsis zoo uas cuam tshuam rau warehouses thiab stacking. Generally, it should be controlled within 2–5 seconds, and adjusted according to particle density and packaging specifications.
Kev xaiv ntawm peb qhov tsis sib xws yuav tsum ua raws li lub hauv paus ntsiab lus ntawm "kev sib koom ua ke" thiab tsis tuaj yeem hloov kho hauv kev sib cais. Nws raug pom zoo tias cov tuam txhab ua cov khoom me me - batch kev sim raws li hom particle thiab ntim cov ntaub ntawv, thiab sau qhov zoo tshaj plaws parameter ua ke. Kev tswj hwm peb qhov tseem ceeb no tuaj yeem tsis tsuas yog zam kev ntim khoom poob, tab sis kuj ua kom cov khoom ruaj khov zoo, tso lub hauv paus ruaj khov rau cov lag luam los txhim kho lawv cov kev sib tw tseem ceeb.
