Imithelela yobuningi yokusatshalaliswa kosayizi wezinhlayiya ze-coke yezinto zokusetshenziswa ekungeneni kwengqimba yezinto kanye nokufana kwe-calcination kuhhavini ojikelezayo ingahlaziywa ngokuhlobana phakathi kwamapharamitha wosayizi wezinhlayiya kanye nezinkomba zenqubo kanje:
I. Umthelela Olinganiselwe Wokusatshalaliswa Kosayizi Wezinhlayiyana Ekungeneni Kwengqimba Yezinto
Ukufana Kosayizi Wezinhlayiyana (Inani le-PDI)
- Incazelo: Inkomba yokusabalala kokusabalalisa kosayizi wezinhlayiyana (PDI = D90/D10, lapho i-D90 ingusayizi wesihlungo lapho kudlula khona ama-90% ezinhlayiyana, kanti i-D10 ingusayizi wesihlungo lapho kudlula khona ama-10% ezinhlayiyana).
- Iphethini Yomthelela:
Inani elincane le-PDI (elibonisa usayizi wezinhlayiya ezifanayo) liholela ekujuleni okuphezulu kwengqimba yezinto ezibonakalayo, kanye nenkomba yokuvuleka (inani le-K) ekhuphuka cishe ngo-15% kuya ku-20%. - Idatha Yokuhlola:
Uma i-PDI yehla kusuka ku-2.0 kuya ku-1.3, ukwehla kwengcindezi ngaphakathi kwesithando kwehla ngo-22%, kanti izinga lokugeleza kwegesi likhuphuka ngo-18%, okubonisa ukuthuthuka okukhulu ekungeneni kwamanzi. - Indlela yokusebenza:
Ubukhulu bezinhlayiya ezifanayo kunciphisa isimo sezinhlayiya ezincane ezigcwalisa izikhala phakathi kwezinhlayiya ezinkulu, kugwenywe umphumela "wokuhlanganisa izinhlayiya" ngaleyo ndlela kwehliswe ukumelana nokuhamba komoya.
Okuqukethwe Kwezinhlayiyana Ezincane (<0.5 mm)
- Umkhawulo Obalulekile:
Uma ingxenye yezinhlayiya ezincane idlula u-10%, ukuvuleka kwayo kuyawohloka kakhulu. - Ubudlelwano Bokulinganisa:
Ngokwanda ngakunye okungu-5% kwezinhlayiya ezincane, ukwehla kwengcindezi ngaphakathi kwesitofu kukhuphuka cishe ngo-30%, kanti izinga lokugeleza kwegesi lehla ngo-25%. - Ucwaningo lwesigameko:
Kuhhavini we-coke calcination we-petroleum coke, lapho okuqukethwe kwezinhlayiya ezincane kukhuphuka kusuka ku-8% kuya ku-15%, ingcindezi engemihle ekhanda lehhavini ikhuphuka kusuka ku--200 Pa kuya ku--350 Pa, okudinga ukwanda kwamandla e-draft fan abangelwayo ukuze kuqhubeke ukusebenza, okuholela ekwandeni kokusetshenziswa kwamandla ngo-12%.
Usayizi Wezinhlayiyana Omaphakathi (D50)
- Ububanzi Obufanele:
Ukungena kahle kakhulu kutholakala uma i-D50 iphakathi kuka-8 no-15 mm. - Umthelela Wokuphambuka:
Uma i-D50 ingaphansi kuka-5 mm, i-porosity yesendlalelo sezinto ezibonakalayo iyancipha ibe ngaphansi kuka-35%, kanti inkomba yokuvuleka kwe-permeability yehla ngo-40%;
Uma i-D50 idlula ama-20 mm, yize i-porosity iphezulu, indawo yokuxhumana phakathi kwezinhlayiya iyancipha, kunciphisa ukusebenza kahle kokudlulisa ukushisa ngo-15% futhi kuthinta ngokungaqondile ukufana kwe-calcination.
II. Umthelela Olinganiselwe Wokusatshalaliswa Kobukhulu Bezinhlayiyana Ekufaneni Kokubalwa Kwezinhlayiya
Ukuphambuka Okujwayelekile Kokusabalalisa Izinga Lokushisa (σT)
- Incazelo:
Isibonakaliso sezibalo sokuguquguquka kwe-amplitude yezinga lokushisa le-axial ngaphakathi kwesithando somlilo, kanye ne-σT encane ekhombisa i-calcination efanayo kakhulu. - Umthelela Wosayizi Wezinhlayiyana:
Uma usayizi wezinhlayiya ufana (PDI < 1.5), i-σT ingalawulwa ngaphakathi kwe-±15℃;
Uma usayizi wezinhlayiya ungalingani (PDI > 2.5), i-σT iyanda ibe yi-±40℃, okuholela ekushiseni ngokweqile noma ekushiseni okungaphansi kwendawo. - Ucwaningo lwesigameko:
Kuhhavini ojikelezayo wekhabhoni ye-aluminium, ngokwenza ngcono ukusatshalaliswa kosayizi wezinhlayiya ukuze kuncishiswe i-PDI kusuka ku-2.8 kuya ku-1.4, ukuphambuka okujwayelekile kokuqukethwe okuguquguqukayo kumkhiqizo kwehla kusuka ku-0.8% kuya ku-0.3%, okuthuthukisa kakhulu ukufana kwe-calcination.
Isivinini Sokunyakaza Kwangaphambili Sokusabela (Vr)
- Incazelo:
Ijubane lokuqhutshwa kwesixhumi esibonakalayo sokusabela kwe-calcination kusendlalelo sezinto ezibonakalayo, okubonisa ukusebenza kahle kwe-calcination. - Ubudlelwano nosayizi wezinhlayiya:
Ngokwanda ngakunye okungu-10% kwesilinganiso sezinhlayiya ezincane (<3 mm), i-Vr iyanda cishe ngo-25%, kodwa ivame ukubangela ukusabela okusheshayo kakhulu kanye nokushisa ngokweqile kwendawo;
Ngokwanda ngakunye okungu-10% kwesilinganiso sezinhlayiya eziqinile (>20 mm), i-Vr incipha ngo-15% ngenxa yokumelana nokushisa okwandisiwe. - Iphuzu Lokulingana:
Uma ukusatshalaliswa kosayizi wezinhlayiya ku-bimodal (isb., ingxube yezinhlayiya ezingu-3-8 mm kanye no-15-20 mm), i-Vr ingagcinwa ngaphakathi kobubanzi obufanele (0.5-1.0 mm/min) ngenkathi kuqinisekiswa ukufana.
Izinga Lokufaneleka Komkhiqizo (Q)
- Ubudlelwano Bokulinganisa:
Kuwo wonke amayunithi angu-0.5 okukhuphuka kobukhulu bezinhlayiya (okungukuthi, ukwehla kwenani le-PDI), izinga lokufaneleka komkhiqizo likhuphuka cishe ngo-8%;
Ngokuncipha ngakunye okungu-5% kokuqukethwe kwezinhlayiya ezincane, izinga lokungcola ngenxa yokusha ngaphansi noma ukusha ngokweqile liyancipha ngo-12%. - Idatha Yezimboni:
Kuhhavini ojikelezayo we-titanium dioxide, ngokulawula usayizi wezinhlayiya ze-coke yezinto zokusetshenziswa (D50 = 12 mm, PDI = 1.6), ukuphambuka okujwayelekile kobumhlophe bomkhiqizo kwehla kusuka ku-1.2 kuya ku-0.5, kanti izinga lomkhiqizo webanga lokuqala liyakhuphuka kusuka ku-75% kuya ku-92%.
III. Izincomo Zokwenza Kusebenze Kahle Okuphelele
Izinhloso Zokulawula Usayizi Wezinhlayiyana:
- D50: 8-15 mm (ingalungiseka ngokwezici zezinto ezibonakalayo);
- I-PDI: <1.5;
- Okuqukethwe kwezinhlayiya ezincane (<0.5 mm): <8%.
Amasu Okulungisa Inqubo:
- Sebenzisa izinqubo zokuchoboza nokuhlola ezigabeni eziningi ukuqinisekisa ukusatshalaliswa kosayizi wezinhlayiya ezigxilile;
- Yenza ukwelashwa kwangaphambi kokwakheka (isb., ukubopha ama-briquet) ezinhlayiyeni ezincane ukuze unciphise ukulahlekelwa okundizayo;
- Lungiselela ukwakheka kobukhulu bezinhlayiya ngokuya ngohlobo lwe-oven (isilinganiso sobude kuya kobubanzi, isivinini sokujikeleza), isibonelo, usebenzisa izinhlayiya eziqinile njengesakhi esiyinhloko sama-oven amade bese unezela ngezinhlayiya ezincane zama-oven amafushane.
Ukuqapha kanye Nempendulo:
- Faka abahlaziyi bosayizi bezinhlayiya ku-inthanethi ukuze baqaphe ukusatshalaliswa kosayizi wezinhlayiya zezinto ezingena esithandweni ngesikhathi sangempela;
- Hlanganisa nemodeli ye-computational fluid dynamics (CFD) yensimu yokushisa ngaphakathi kwesithando ukuze ulungise ngokuguquguqukayo amapharamitha wosayizi wezinhlayiya kanye nohlelo lwe-calcination.
Isikhathi sokuthunyelwe: Ephreli-16-2026