Yog, aTwin ntsia hlau ntses noj tshuabyog cov txheej txheem kev lag luam rau kev ua cov rog siab (txog 15-18%) thiab siab- cov qauv dej noo. Tsis zoo li ib zaug xwb - cov cav tov ntsia hlau uas tso siab rau kev sib txhuam thiab feem ntau "slip" thaum ntxiv roj (cov roj) ntxiv, cov ntsia hlau ntxaib extruders sivintermeshing zoo hloov chaw. Qhov no ua kom cov ntaub ntawv ruaj khov, cov hmoov txhuv nplej siab gelatinization, thiab sib npaug pellet expansion txawm nyob rau hauv complex, as-ham - cov zaub mov hauv dej ntom ntom.
1. Qhov Kev Sib Tw "Slippage": Yog vim li cas rog yog tus yeeb ncuab ntawm Ib Leeg -Screws
Hauv kev tsim cov aquafeed, nce lipids (rog) txhim kho lub zog ceev rau cov tsiaj xws li salmon thiab trout. Txawm li cas los xij:
- Qhov teeb meem:Hauv ib qho - lub taub hau taub hau, roj ua lub roj nplua nyeem. Thaum cov roj ntau tshaj 6-8%, cov khoom poob kev sib txhuam tawm tsam ntawm phab ntsa, ua rau cov ntsia hlau tig tsis txav lub khob noom cookie mus rau pem hauv ntej (Slippage).
- Twin ntsia hlau ntses pub extruder tshuab Kev daws teeb meem:Lub dual screws intermesh, mechanically yuam lub oily mov paj mus rau qhov tuag. Qhov kev ua "tswj" no yog ywj siab ntawm kev sib txhuam, tso cai rau siab -kev txhaj tshuaj rog yam tsis poob siab extrusion.
2. Ua kom muaj dej noo ntau ntxiv rau kev ua kom digestibility
Cov dej noo siab (20-30%) feem ntau yog qhia los ntawm chav txias kom txhim khoStarch gelatinization.
- Kev ntxhib los mos zoo dua:Twin- ntsia hlau extruders tuav cov ntaub ntawv ntub, nplaum tsis muaj rov qab.
- Tus kheej -Wiping:Cov ntsia hlau tsis tu ncua ntxuav ib leeg, tiv thaiv "qhov chaw tuag" qhov chaw ntub dej tuaj yeem ferment lossis clunk.
- Uniform Expansion:Cov dej noo ntau dua tso cai rau kev tswj hwm ntau "flash-tawm" ntawm qhov tuag, ua rau cov tawv nqaij smoother thiab buoyancy zoo dua.
3. Kev ua tau zoo: Twin-Screw vs. Single-Screw
| Feature | Twin-Screw Performance | Tib -Screw txwv |
| Max Fat Cov ntsiab lus | 12% - 18% (Hauv- chim) | 5% - 8% Max |
| Mixing Intensity | Siab (homogeneous) | Tsawg (Risk ntawm cov hnab ris roj) |
| Moisture Range | 15% - 35% | 15% - 22% |
| Expansion Control | Precise (Uniform ntom) | Tsis ruaj khov hauv siab - cov zaub mov muaj roj |
| Tus kheej -Kev ntxuav | Zoo heev | Poor (Yuav tsum tau phau ntawv teardown) |
4. Qhov zoo tshaj plaws rau cov neeg tsim khoom lag luam
- Zog ceev:Tsim cov khoom noj "High-Energy" uas txo qhov kev loj hlob ntawm cov ntses.
- Txo plua plav:Kev sib xyaw ua kom muaj roj ntau dua / cov dej noo ua rau cov pellets ruaj khov dua nrog kev nplua tsawg, txhim kho dej zoo.
- Daim ntawv qhia Versatility:Hloov los ntawm ntab tilapia pub (cov hmoov txhuv nplej siab) mus rau hauv lub dab dej cw noj (siab protein ntau / noo) ntawm tib lub tshuab.
5. FAQ:
Q: Dab tsi yog cov ntsiab lus roj siab tshaj plaws uas kuv tuaj yeem ntxiv ncaj qha rau hauv Twin ntsia hlau ntab ntses noj tshuab?
A:Feem ntau cov kev lag luam ntxaib - ntsia hlau extruders tuaj yeem ua tau12% - 15% yog 'ntxiv rau hauv lub thoob. Rau qib siab dua (txog 20% lossis ntau dua), lub tshuab nqus tsev feem ntau yog siv tom qab lub sijhawm ziab kom nqus cov roj rau hauv cov ntxiab pellets.
Q: Vim li cas kuv cov khoom noj ntab ntab dej thaum kuv nce cov rog?
A:Roj txo cov tshuab hluav taws xob (SME) hloov mus rau lub khob noom cookie, uas tuaj yeem cuam tshuam kev nthuav dav. Txhawm rau txhim kho qhov no, koj yuav tsum tau ua kom cov ntsia hlau nrawm los yog kho cov ntsia hlau teeb tsa kom muaj zog shearing ntau dua rau "ua noj" cov hmoov txhuv nplej siab txawm tias lub lubrication.
Q: Kuv puas tuaj yeem ua ib nrab-cov ntses ntub dej nrog lub tshuab no?
A:Yog lawm. Twin ntsia hlau floating ntses pub pellet ua tshuab yog zoo tagnrho rausemi-moist formulations. Txawm li cas los xij, koj yuav xav tau lub tshuab txias txias thiab ntim khoom tshwj xeeb los tiv thaiv pwm kev loj hlob vim muaj dej ntau dua hauv cov khoom kawg.
Q: Puas yog cov dej noo siab cuam tshuam rau lub neej ntawm extruder screws?
A:Qhov tseeb, cov qib dej kom tsim nyog tuaj yeem ua rau lub neej ntev ntawm cov ntsia hlau los ntawm kev txo cov hnav abrasive. Txawm li cas los xij, koj yuav tsum siv siab - zoostainless los yog alloy steel screwslos tiv thaiv corrosion los ntawm chav thiab acidic additives feem ntau pom nyob rau hauv cov qauv moist.
Q: Puas yuav siab - cov roj pellets nyob ruaj khov hauv dej?
A:Yog, yog muaj txaus starch gelatinization. Cov ntxaib-ntsuas lub peev xwm los sib tov rog rau hauv cov protein- starch matrix xyuas kom meej tias cov roj tsis "kua" tawm, tswjdej ruaj khov mus txog 12-24 teev.
Cov ntsiab lus: Vim li cas ntxaib-Screw tsis yog-Tshaj tawm rau Premium Pub
Yog tias koj lub hom phiaj tsim khoom koom nrogSiab-Zoo (High-Fat) lossis Siab-Digestibility (High-Moisture)txau, Twin ntsia hlau ntab ntses pub pellet extruder tshuab yog tib lub tshuab siv tau. Nws tshem tawm cov kev pheej hmoo ntawm kev ua haujlwm ntawm cov khoom slippage thiab kev nthuav dav tsis sib xws, muab lub platform ruaj khov rau kev noj haus tshiab.
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