Izitini zeCorundum
Isitini seCorundumiwumkhiqizo osebenza kahle kakhulu one-corundum njengesigaba esiyinhloko sekristalu, esetshenziswa kabanzi emikhakheni yezimboni eshisa kakhulu. Ithandwa yizimboni ezahlukahlukene ngenxa yokumelana kwayo okuhle kakhulu nokushisa okuphezulu, amandla omshini kanye nokuqina kwamakhemikhali. Ngezansi kunesingeniso esiningiliziwe sezitini zethu ze-corundum, okuhlanganisa ukuhlukaniswa komkhiqizo, izici zokusebenza, ukwakheka kwamakhemikhali, amasimu okusetshenziswa kanye nezinzuzo zomkhiqizo.
Ukuhlukaniswa Komkhiqizo
Ngokusho kokwakheka kwamakhemikhali (izingxenye ezengeziwe) noma imithombo yezinto zokusetshenziswa, izitini ze-corundum zihlukaniswe kakhulu ngezigaba ezine, ngasinye sinezici ezihlukile kanye nezimo zokusetshenziswa eziqondiwe ukuhlangabezana nezidingo ezahlukene zezimboni.
1. Isitini seCorundum Esimhlophe
Amagama Ayisihluthulelo:Ubumsulwa Obuphezulu, Ukungcola Okuphansi, Izinga Lokushisa Eliphezulu
Izici Zamandla:Yenziwe nge-alumina yezimboni, inokuqukethwe okungcolile okuphansi kakhulu (ikakhulukazi okuqukethwe okuphansi kwe-iron oxide), ngakho-ke iveza okumhlophe. Ine-refractoribility ephezulu kakhulu kanye namandla omshini okushisa okuphezulu, kanye nokuqina kwamakhemikhali okuhle kakhulu phakathi kwezitini ze-corundum.
Okuqukethwe kwe-Al₂O₃:≥ 99%
2. Isitini se-Corundum esinsundu
Amagama Ayisihluthulelo:Izindleko Ezisebenzayo, Inhloso Ejwayelekile, Elwa Nokuqhekeka
Izici:Incibilikiswe yi-bauxite esithandweni sikagesi se-arc, equkethe inani elincane le-iron oxide (ebonisa insundu). Ibonakala ngesakhiwo esiminyene, ukumelana okuhle kakhulu nokuqhekeka, kanye nentengo enenzuzo kakhulu uma kuqhathaniswa nesitini se-corundum esimhlophe.
Okuqukethwe kwe-Al₂O₃:≥ 95%
3. Isitini se-Chrome Corundum
Amagama Ayisihluthulelo:Ukumelana Nokugqwala, I-Glass Kiln, I-Cement Kiln
Izici:I-Chromite noma i-chromium oxide yengezwa ku-corundum. Isici sayo esikhulu ukumelana okunamandla kakhulu nokuguguleka kwengilazi nokuncibilika kwe-slag, kanye nokumelana okuhle nokushaqeka kokushisa ngasikhathi sinye.
Okuqukethwe kwe-Al₂O₃:90-95%
4. Izitini ze-Zirconia Corundum
Amagama Ayisihluthulelo:Ukumelana Nokugqokwa, Ukuqina Kokushaqeka Kokushisa, Udonga Lwesithando Sengilazi
Izici:Kufakwa i-zircon. Ukwengezwa kwengxenye ye-zircon kuthuthukisa kakhulu ukumelana kokuguguleka kwento kanye nokuqina kokushaqeka kokushisa (ukumelana nokupholisa nokushisa okusheshayo).
Okuqukethwe kwe-Al₂O₃:60-80% (+ ZrO₂)
Izici Zokusebenza:
Njengezinto ezisebenza kahle kakhulu, izitini ze-corundum zinezakhiwo ezinhle kakhulu, futhi izinhlobo ezahlukene zezitini ze-corundum zithuthukisa ukusebenza okuqondiwe ngokusekelwe ezicini ezingenhla:
1. Ukuqina Kokugqama Okuphezulu:Ukuqina kokumelana kungafinyelela ngaphezu kuka-1750℃, kanti eminye imikhiqizo ehlanzekile kakhulu (njengezitini ezimhlophe ze-corundum) ingamelana namazinga okushisa aphezulu isikhathi eside ngaphezu kuka-1800℃, igcine ukuqina ezindaweni ezishisa kakhulu ngaphandle kokuguquka noma ukulimala.
2. Amandla Aphezulu:Inamandla okucindezela okushisa okuphezulu kwegumbi, afinyelela ku-340MPa, futhi ingathwala imithwalo yemishini emazingeni okushisa aphezulu. Phakathi kwazo, isitini se-corundum esimhlophe sinamandla amakhulu emishini emazingeni okushisa aphezulu.
3. Ukuzinza Okuhle Kwamakhemikhali:Imelana kakhulu ne-asidi noma i-alkaline slag, izinsimbi, ukuncibilika kwengilazi, njll., futhi akulula ukubhekana nokusabela kwamakhemikhali. Isitini se-corundum esimhlophe sinokuqina kwamakhemikhali okuhle kakhulu ngenxa yobumsulwa baso obuphezulu.
4. Ukumelana Okuhle Kakhulu Kwe-Slag kanye Nokumelana Nokuguguleka Kwenhlabathi:Ikakhulukazi inokumelana okunamandla kakhulu ne-asidi, i-neutral kanye ne-alkaline slags encibilikisiwe. Isitini se-Chrome corundum sivelele kakhulu kulokhu kusebenza, okungandisa impilo yesevisi ngempumelelo.
5. Ukuzinza Okuhle Kokushisa:Nakuba ingekho kahle njengezinto eziqukethe i-silicon noma i-magnesia, ingathuthukiswa kakhulu ngokungeza i-zircon (njengezitini ze-zirconia corundum) noma ukulungisa ukwakheka kwezinhlayiya. Izitini ze-zirconia corundum zinokuqina okuphezulu kokushaqeka kokushisa.
Isitini se-Corundum-mulliteiwumkhiqizo oqinile onama-refractory one-corundum kanye ne-mullite njengezigaba eziyinhloko zekristalu. Ngenxa yomphumela wokubambisana kwezigaba ezimbili eziyinhloko, ihlanganisa ukumelana nokushisa okuphezulu kanye nokumelana nokugqwala kwe-corundum kanye nokuqina okuhle kakhulu kokushaqeka kokushisa kwe-mullite. Lo mkhiqizo waziwa kabanzi emikhakheni yezimboni eshisa kakhulu emhlabeni jikelele njenge-metallurgy, ingilazi, amakhemikhali kaphethroli, kanye nokukhiqizwa kwe-carbon black, okunikeza izixazululo ze-lining ezithembekile zezingxenye ezibalulekile ze-kiln futhi kuthuthukisa kakhulu ukusebenza kahle kwemishini kanye nokuphila kwenkonzo.
Izinzuzo Eziyinhloko Zokusebenza:
1. Ukumelana okumangalisayo kokushaqeka kokushisa:Lena inzuzo yayo eyinhloko. I-Mullite ine-coefficient ephansi yokwanda kokushisa, futhi isakhiwo sayo sekristalu esimise okwenaliti simunca ukucindezeleka okubangelwa ukushintshashintsha kwezinga lokushisa, kunciphisa kakhulu ukuqhekeka okubangelwa ukupholisa okusheshayo nokushisa emazingeni okushisa aphezulu. Ukusebenza kwayo kudlula okwezitini ze-corundum ezihlanzekile.
2. Amandla alinganiselayo kanye nokumelana nokugqwala:Ukuba khona kwesigaba se-corundum kuqinisekisa amandla aphezulu kokubili emazingeni okushisa aphansi kanye nasekamelweni, kuyilapho futhi kunikeza ukumelana okuhle ne-slag ene-acidic, ingilazi encibilikisiwe, kanye nezinye izinto ezisetshenziswayo. Nakuba ukumelana kwayo ne-alkali kuphansi kancane kunokwezitini ze-chrome corundum, inikeza ububanzi obubanzi bezicelo.
3. Ukushisa okuphakathi nendawo:Uma kuqhathaniswa nezitini ze-corundum ezinobukhulu obuphezulu, inikeza ukuhanjiswa kokushisa okuphansi ngenkathi igcina izinga elithile lokufakwa kokushisa, inciphisa ukulahlekelwa ukushisa emishinini eshisa kakhulu futhi iyenze ifaneleke ukusetshenziswa okudinga ukufakwa kokushisa.
| Izitini zeCorundum | ||||
| I-INDEX | I-GYZ-99A | I-GYZ-99B | I-GYZ-98 | I-GYZ-95 |
| I-Al2O3 (%)≥ | 99 | 99 | 98 | 95 |
| I-SiO2 (%)≤ | 0.15 | 0.2 | 0.5 | --- |
| I-Fe2O3 (%)≤ | 0.10 | 0.15 | 0.2 | 0.3 |
| Ukuvuleka Okubonakalayo (%)≤ | 19 | 19 | 19 | 20 |
| Ubuningi (g/cm3) ≥ | 3.20 | 3.15 | 3.15 | 3.1 |
| Amandla Okuchoboza Okubandayo (MPa) ≥ | 80 | 80 | 80 | 100 |
| Ushintsho Oluqondile Oluhlala Njalo (1600°×3h) /% | -0.2~+0.2 | -0.2~+0.2 | -0.2~+0.2 | -0.3~+0.3 |
| Ukungaguquguquki Ngaphansi Komthwalo (0.2MPa, 0.6%)/℃ ≤ | 1700 | 1700 | 1700 | 1700 |
| Izitini ze-Corundum-mullite | ||||
| I-INDEX | I-GMZ-88 | I-GMZ-85 | I-GMZ-80 | I-GYZ-75 |
| I-Al2O3 (%)≥ | 88 | 85 | 80 | 75 |
| I-Fe2O3 (%)≤ | 0.8 | 1.0 | 1.0 | 1.2 |
| Ukuvuleka Okubonakalayo (%)≤ | 15(17) | 16(18) | 18(20) | 18(20) |
| Ubuningi (g/cm3) ≥ | 3.00 | 2.85 | 2.75 | 2.60 |
| Amandla Okuchoboza Okubandayo (i-MPa) | 100-120 | 80-100 | 80-100 | 60-80 |
| Ushintsho Oluqondile Oluhlala Njalo (1600°×3h) /% | -0.1~+0.1 | -0.1~+0.1 | -0.2~+0.2 | -0.2~+0.2 |
| Ukungaguquguquki Ngaphansi Komthwalo (0.2MPa, 0.6%)/℃ ≤ | 1700 | 1680 | 1650 | 1650 |
Ukusetshenziswa Kwezitini Ze-Corundum:
1. Imboni Yensimbi:Isetshenziselwa ukwakheka kwemishini yokuncibilikisa eshisa kakhulu njengeziguquli, izitofu zikagesi, kanye nezitofu zokucwenga, kanye nezingxenye ezifana namaslayidi, izitophu, kanye nezinhlelo zokuthulula ukuze kuqhutshwe njalo.
2. Ukuncibilikisa Insimbi Okungeyona Insimbi:Zifakwe ezitsheni zokuncibilikisa nokucwenga izinsimbi ezingezona i-ferrous njenge-aluminium, ithusi, kanye ne-nickel.
3. Imboni Yengilazi:Ivame ukusetshenziswa ezitini zokuhlola emakamelweni okuvuselela kabusha kanye nasezimbobeni zokushaja zezitofu zokuncibilikisa ingilazi.
4. Imboni Yesimende:Ifakwe endaweni yokushisa ephezulu yama-oven ajikelezayo esimende.
5. Imboni Yamakhemikhali:Ifakwe ama-reactor ashisa kakhulu kanye nezitofu eziqhekekayo.
6. Imboni Yamandla:Ifakwe imishini yokwelapha igesi yokukhipha umoya eshisa kakhulu kanye nama-gasifier.
Ukusetshenziswa kwezitini zeCorundum Mullite:
1. Imboni Yesimende:Zifakwe endaweni yokuguquka kanye ne-precalciner yama-kiln ajikelezayo esimende. Zingamelana nokushintshashintsha okukhulu kwezinga lokushisa ngaphakathi kwesithando esijikelezayo ngenkathi zimelana namagesi agqwalisayo akhiqizwa ukubola kwezinto zokusetshenziswa zesimende.
2. Imboni Yengilazi:Zisetshenziswa ezitini zokuhlola ukuvuselelwa kwesithando seglasi kanye nezindonga ze-oven, zimelana nokushintshashintsha kwezinga lokushisa njalo futhi azigugi kalula yingilazi encibilikisiwe.
3. Imboni Yezinsimbi Nezamakhemikhali:Ifanele ukusetshenziswa ezindaweni ezishisayo eziphakathi neziphansi zama-furnace okuncibilikisa insimbi angenawo u-ferrous, ama-linings esitofu sokuthosa esinokushisa okuphezulu, kanye nemishini yokosa ethwala i-catalyst embonini yamakhemikhali, ukulinganisela amandla kanye nezidingo zokumelana nokushaqeka kokushisa.
imibuzo ejwayelekile ukubuzwa
Udinga usizo? Qiniseka ukuthi uvakashela izinkundla zethu zokusekela ukuze uthole izimpendulo zemibuzo yakho!
Singumkhiqizi wangempela, imboni yethu igxile ekukhiqizeni izinto eziphikisayo iminyaka engaphezu kwengu-30. Sithembisa ukukunikeza intengo engcono kakhulu, insizakalo engcono kakhulu yangaphambi kokuthengisa kanye neyangemva kokuthengisa.
Kuyo yonke inqubo yokukhiqiza, i-RBT inohlelo oluphelele lwe-QC lokwakheka kwamakhemikhali kanye nezakhiwo zomzimba. Futhi sizohlola izimpahla, futhi isitifiketi sekhwalithi sizothunyelwa nezimpahla. Uma unezidingo ezikhethekile, sizozama konke okusemandleni ethu ukuze sizilungiselele.
Kuye ngobuningi, isikhathi sethu sokulethwa sihlukile. Kodwa sithembisa ukuthumela ngokushesha ngangokunokwenzeka ngekhwalithi eqinisekisiwe.
Vele, sinikeza amasampula amahhala.
Yebo, vele, wamukelekile ukuvakashela inkampani ye-RBT kanye nemikhiqizo yethu.
Akukho mkhawulo, singakunikeza isiphakamiso nesixazululo esingcono kakhulu ngokuya ngesimo sakho.
Sesineminyaka engaphezu kwengu-30 senza izinto eziphikisayo, sinokusekelwa okuqinile kwezobuchwepheshe kanye nokuhlangenwe nakho okucebile, singasiza amakhasimende ukuklama ama-kiln ahlukene futhi anikeze isevisi eyodwa.
