一、Magadzirirwo Zvinhu
- Low Starch Content kana Insufficient Gelatinization: Starch gelatinizes (gelatinizes) panguva yepamusoro-tembiricha uye high-pressure conditioning, ichiita sechisikigo binder. Iyi ndiyo yekutanga tsime rekuoma kwepellet. Kana chikamu chezviyo zvakasvibirira zvakadai sechibage negorosi mukugadzirwa kwakaderera, kana kana mamiriro ekugadzirisa asina kunaka, starch inogona kusaita gelatinize zvakakwana.
- Yakanyanya High Protein Content: Yakanyanya kuwanda mapuroteni emukati (kunyanya mapuroteni ane chirimwa akadai sesoyabean meal) ane mhedzisiro inopesana kana yapiswa, inoderedza kusunga kwesimba uye kuita kuti pellet chimiro chisununguke.
- Yakanyanya Yakawandisa Yemafuta Yemukati: Mafuta (angave ari emuzvarirwo kana akaiswa gare gare) anoita semafuta ekuzora mumapellets, zvakanyanya kuderedza kuomarara kwepellet. Kana iyo yakazara mafuta emukati (kunyanya akawedzera mafuta) inodarika 5%, iyo yakaipa kukanganisa pakuoma kwakakosha.
- Fiber yemukati yakakwira zvakanyanya kana yakaderera: Huwandu hwakakodzera hwefiber hunoita se "skeleton" panguva yekupeta, inosimudzira kuomarara kuburikidza nekurukana. Zvisinei, fiber yakawandisa (yakadai sechikamu chepamusoro chebran kana rice bran) haina kunamatira, inoderedza kusimba kwepellet. Fiber isina kukwana, kune rumwe rutivi, inoshaya tsigiro yeskeletal iyi.
- Kushaikwa kwebhainda: Mune mamwe maumbirwo akakosha (akadai sekudya kwemvura kana kudya kwekutanga) kana pakushandisa zvakakosha mbishi, pasina kuwedzera yakatsaurirwa pellet binder (senge lignin sulfonates, bentonite, colloids, nezvimwewo), mapellets achanetsekana kuti awane kuoma kwaunoda.
二、Maitirwo Ekugadzira uye Mashandiro Ekuita
- Pakaipa conditioning effect:
- Unhu hweSteam: Shandisa mupfu wakaoma, usina mvura kana kupisa zvakanyanya. Kusagadzikana kwemutsindo wekumanikidza kana kuwandisa hunyoro hunyoro huchakanganisa mamiriro ekugadzirisa.
- Conditioning tembiricha yakadzikira: Tembiricha yakakosha kune starch gelatinization uye protein denaturation. Kusakwana tembiricha kunokonzera yakaderera gelatinization rates uye pachizvarirwo asina simba pellets.
- Kusakwana kwekugadzirisa nguva: Kusakwana nguva yekugara yezvinhu mu conditioner inotungamirira kusakwana kusanganiswa kwemhepo uye zvinhu, zvichikonzera kusakwana kukwana.
- Kusakwana kwekuwedzera kwehutsi: Kuwedzera kweSteam kunofanirwa kuverengera 3% -6% yekugadzirwa; yakadzikira zvakanyanya inotadza kupa kupisa kwakakwana uye mwando.
- Mhete dzinofa zvinhu:
- Low ring die compression ratio: The compression reshiyo (reshiyo yehurefu hunoshanda kusvika kudhayamita yemhete kufa orifice) ndiyo yakakosha parameter inotaridza particle density. Iyo yakadzikira iyo compression reshiyo, kushoma kudzvanya kwezvinhu zvinosangana mukati mekufa orifice, zvichikonzera zvakasununguka zvimedu.
- Kupfeka kwakasimba kwemhete yemhete: Iyo yekufa orifice yechembere inofa inotsvedzerera nekuda kwekupfeka, uye inogona kutogadzira "muromo wefunnel" painopinza, zvichitungamira mukusakwana kwekuwedzera kudzvanywa uye kuderera kwechidimbu kuomarara.
- Yakaderera mhete kufa kuvhura chiyero: Iyo yakaderera yekuvhura reshiyo inokanganisa kukurumidza kubuda uye dzimwe nguva dhigirii rechidimbu compaction.
- Hukuru husina kufanira:
- Saizi yakaomarara kwazvo: Kana iyo mbishi yakagadzikwa zvakanyanya, nzvimbo yekubatana pakati pezvimedu idiki, zvichikonzera kusasimba kwekubatana, zvichiita kuti zvidimbu zvinogadzirwa zvitsemuke nyore uye nekuoma kwakaderera.
- Yakanyanya kunaka particle size: Nepo hupfu hwakatsetseka hunobatsira pakunamira, kukuya zvakanyanya dzimwe nguva kunogona kukanganisa kugona kwechigayo uye mashandisiro esimba. Uyezve, kunaka hakusi nani nguva dzose; iyo yakakwana particle size inoda kutariswa zvichienderana nemhando uye kufa dhayamita.
(Iyo Mufeng nyundo chigayo inoshandisa yakakosha sando-screen gap kugadzirisa chimiro, iyo inogona kugadziridzwa pakati pe2-12mm kuti ienderane nekupwanya kweakasiyana masizi.)
- Kutonhodza uye kuomeswa zvisina kukwana: Pellet achangoburitswa akapfava uye anopisa, zvinoda chinotonhorera kuti atonhodze uye kuderedza unyoro. Nguva isina kukwana yekutonhodza, kusakwana kwemhepo, kana zvisizvo zvisina kunaka zvigadziriso zvinogona kutungamirira kune yakakwira mukati mehunyoro hwemukati mumapellets, zvichikonzera nzvimbo yakapfava uye isina kukwana kuomarara kwese.
(Mufeng inotonhorera, mhepo inotonhorera inofamba ichienda kune imwe nzira kune granular material, kuitira kuti zvinyorwa zvishoma nezvishoma zvitonhodzwe kubva pasi kusvika kumusoro, zvichiita kuti yunifomu itonhorere.)
三. Raw material factors
- Hutsva hwezvinhu zvakasvibirira: Zvigadzirwa zvechembere kana kuvhuvhu zvichachinja kuumbwa kwavo kwekudya uye zvimiro zvemuviri, zvichikanganisa kuita kwepellet.
- Raw material hunyoro hwemukati: Yakawandisa hunyoro hwemukati mune yakabikwa huchakanganisa kuwedzera uye kunyudzwa kweutsi panguva yekumisikidza, zvichikanganisa gelatinization.
- Kunamira kwechisikigo kwezvakagadzirwa: Iyo mbishi imwe chete kubva kwakasiyana (sechibage kana soya bhinzi kubva kwakasiyana kwakasiyana) inogona kuve neakasiyana mapellet maitiro nekuda kwekusiyana kwekuumbwa.
四、 Mhedziso
Muchidimbu, musimboti wekugadzirisa dambudziko rekuomarara kwegranule uri mu "optimized conditioning" uye "kuenzanisa mhete kufa." Kuvandudza dhigirii regelatinization ye starch uye kushandisa mhete yakakodzera yekufa kweiyo yakazara extrusion ndiyo kiyi yekuwana yakakwirira-yakaoma granules.
