Izitini zeCorundum/izitini zeCorundum Mullite
Ulwazi Lomkhiqizo
Isitini seCorundumAma-s ayimikhiqizo ephikisayo ene-corundum njengesigaba esiyinhloko sekristalu, kanye nokuqukethwe kwe-alumina okungaphezu kwama-90%.
Ukuhlukaniswa:Izitini ze-Corundum zihlukaniswa ngokuyinhloko ngezitini ze-corundum ezihlanganisiwe kanye nezitini ze-corundum ezihlanganisiwe. Eyokuqala yenziwe nge-alumina ehlanganisiwe, kanti eyesibili yenziwe nge-corundum ehlanganisiwe. Izitini ze-corundum ezingashiswanga zingenziwa kusetshenziswa i-phosphoric acid noma ezinye izihlanganisi.
Izici Zokusebenza:
Izakhiwo Ezinhle Zokuhogela:Izinga lokushisa eliphansi lomthwalo wezitini ze-corundum elithambile lidlula u-1700°C, kanti ezinye izitini ze-chrome corundum zingafinyelela amazinga okushisa angaphezu kuka-1790°C. Zihlala zizinzile ezindaweni ezinokushisa okuphezulu futhi azikwazi ukuguquka noma ukulimala.
Amandla Aphezulu:Amandla okucindezela ezitini ze-corundum ezihlanzekile kakhulu ekushiseni kwegumbi ngokuvamile angama-70MPa-100MPa, kuyilapho lawo ezitini ze-chrome corundum ezisebenza kahle kakhulu edlula i-150MPa futhi angafinyelela ku-340MPa.
Ukuzinza Okuhle Kwamakhemikhali:Izitini ze-Corundum zimelana kakhulu ne-asidi noma i-alkaline slags, izinsimbi, kanye nengilazi encibilikisiwe, futhi azithinteki ekuphenduleni kwamakhemikhali.
Ukumelana okunamandla nokuguguleka kwe-slag:Isibonelo, okuqukethwe yi-Cr₂O₃ ezitini ze-chrome corundum kuvimbela ngempumelelo i-slag encibilikisiwe ukuthi ingangeni emzimbeni wezitini nge-capillary pores, okuholela ekumelaneni okuphezulu kokuguguleka kwe-slag ezitini ze-corundum ezivamile.
Izithako Eziyinhloko Nezinto Zokusetshenziswa:
Ingxenye eyinhloko yezitini ze-corundum yi-alumina (Al₂O₃), evame ukwedlula u-90%, kanti ezinye ziqukethe kufika ku-99%. Izinto zokusetshenziswa zifaka i-alumina e-sintered kanye ne-corundum ehlanganisiwe. Ezinye izinto zamaminerali nazo zingangezwa ukuze kwakhiwe izinto ezihlanganisiwe, njenge-Cr₂O₃ yezitini ze-chrome corundum kanye ne-ZrO₂ yezitini ze-zirconium corundum.
Izitini ze-Corundum-mulliteyizitini ezihlanganisiwe eziphikisanayo ezakhiwe ngezigaba ezimbili ezizinzile zokushisa okuphezulu: i-corundum (Al₂O₃) kanye ne-mullite (3Al₂O₃・2SiO₂). Zihlanganisa amandla aphezulu e-corundum nokumelana okuhle kakhulu nokushaqeka kokushisa kwe-mullite, okwenza zibe yinto yokushisa ephezulu elinganisela ukusebenza kanye nokusebenza kahle kwezindleko.
Izingxenye Eziyinhloko Nezici Zesakhiwo
Ukwakheka Kwesigaba Esiyinhloko Sekristalu:I-Corundum ne-mullite yizigaba ezimbili zekristalu eziyinhloko, kanti okuqukethwe kwe-alumina kuvame ukusuka ku-70% kuya ku-90%, kanti okusele ngokuyinhloko yi-silicon dioxide (SiO₂). Umphumela wokubambisana wezigaba ezimbili ulinganisa ukusebenza.
Isakhiwo esincane:Izigaba ze-mullite zisatshalaliswa phakathi kwezinhlayiya ze-corundum ngesimo samakristalu amise okwenaliti noma amakholomu, zakha isakhiwo "se-corundum skeleton + mullite connection". Lokhu akugcini nje ngokuthuthukisa amandla ezitini kodwa futhi kuvimbela ukucindezeleka kokushisa ngezikhala ze-micro-crystal.
Izinzuzo Eziyinhloko Zokusebenza
Ukumelana nokushaqeka okumangalisayo 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.
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.
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.
Inkomba Yomkhiqizo
| 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 Bobuningi (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 Bobuningi (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 |
Isicelo
Ukusetshenziswa Kwezitini Ze-Corundum:
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.
Ukuncibilikisa Insimbi Okungenayo Insimbi:Zifakwe ezitsheni zokuncibilikisa nokucwenga izinsimbi ezingezona i-ferrous njenge-aluminium, ithusi, kanye ne-nickel.
Imboni Yengilazi:Ivame ukusetshenziswa ezitini zokuhlola emakamelweni okuvuselela kabusha kanye nasezimbobeni zokushaja zezitofu zokuncibilikisa ingilazi.
Imboni Yesimende:Ifakwe endaweni yokushisa ephezulu yama-oven ajikelezayo esimende.
Imboni Yamakhemikhali:Ifakwe ama-reactor ashisa kakhulu kanye nezitofu eziqhekekayo.
Imboni Yamandla:Ifakwe imishini yokwelapha igesi yokukhipha umoya eshisa kakhulu kanye nama-gasifier.
Izicelo Eziyinhloko Zezitini Ze-Corundum Mullite
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.
Imboni Yengilazi:Zisetshenziswa ezitini zokuhlola ukuvuselelwa kwesithando seglasi kanye nezindonga ze-oven, zimelana nokushintshashintsha kwezinga lokushisa njalo futhi azigugi kalula yingilazi encibilikisiwe.
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.
Iphrofayela Yenkampani
I-Shandong Robert New Material Co., Ltd.itholakala eDolobheni laseZibo, eSifundazweni saseShandong, eShayina, okuyisisekelo sokukhiqiza izinto ezingaphili. Siyibhizinisi lesimanje elihlanganisa ucwaningo nentuthuko, ukukhiqiza, ukuthengisa, ukuklama nokwakha ihhavini, ubuchwepheshe, kanye nezinto ezingaphili kwamanye amazwe. Sinemishini ephelele, ubuchwepheshe obuthuthukisiwe, amandla aqinile obuchwepheshe, ikhwalithi yomkhiqizo enhle kakhulu, kanye nedumela elihle. Ifektri yethu ihlanganisa amahektha angaphezu kwama-200 kanti umkhiqizo waminyaka yonke wezinto ezingaphili ezimile ungaba amathani angama-30000 kanti izinto ezingaphili ezimile zingamathani ayi-12000.
Imikhiqizo yethu eyinhloko yezinto eziphikisayo ifaka phakathi: izinto eziphikisayo ze-alkaline; izinto eziphikisayo ze-aluminium silicon; izinto eziphikisayo ezingabunjwanga; izinto eziphikisayo zokushisa ezivikelayo; izinto ezikhethekile eziphikisayo; izinto eziphikisayo ezisebenzayo zezinhlelo zokuphonsa eziqhubekayo.
imibuzo ejwayelekile ukubuzwa
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