Ukugeleza kwenqubo ye isitini esiyinjwayelo abakhiqizi ukukhiqiza izitini ze-silica

Izinto zokusetshenziswa zezitini ze-silica yi-silica, izitini zemfucuza, i-lime, izinto zamaminerali kanye nama-organic binders. Ukwengezwa kwezitini ze-silica ezingcolile akugcini nje ukunciphisa ukwanda kokuvutha kwezitini, kodwa futhi kunciphisa ukumelana nomlilo namandla emikhiqizo. Ngakho-ke, abakhiqizi bezitini ze-Henan banqunywa ngokuvumelana nezimo ezahlukene. Isimiso siwukuthi uma sikhulu isisindo seyunithi yomkhiqizo, isimo esiyinkimbinkimbi futhi sengeziwe. Ngokuvamile kulawulwa ngaphakathi kwama-20%.

I-lime yengezwa ezintweni eziphansi ngendlela yobisi lwe-lime. Ubisi lwe-lime lusebenza njenge-binder, lukhulisa amandla emva kokoma, futhi lusebenza njenge-mineralizer ngesikhathi senqubo yokuvutha. Ikhwalithi idinga i-90% ye-Cao esebenzayo, ingabi ngaphezu kuka-5% we-carbonate, kanye nosayizi webhulokhi ongaba ngu-50mm. I-mineralizer esetshenziswa ekukhiqizeni ikakhulukazi isikali sensimbi esigoqiwe. Imfuneko yekhwalithi ukuthi okuqukethwe kwe-iron oxide kukhulu kuno-90%, okumele kugaywe ngomshini wokugaya ibhola, futhi ingxenye enosayizi wezinhlayiyana ezingaphansi kuka-0.088mm kufanele ibale ngaphezu kuka-80%.

I-organic binder evamile i-sulfite slurry waste liquid.

Kunezimiso ezine ezijwayelekile zokunquma ukwakheka kwezinhlayiya zezitini ze-silica;

I-1) Uma ukhetha usayizi wezinhlayiyana ezibucayi, ukuzinza kobukhulu obukhulu kanye nomthamo wokushisa okushisa okuphezulu kufanele kuqinisekiswe;

I-2) Kulindeleke ukuthi izinhlayiya ezibucayi ezintweni ezimbi zincane futhi izinhlayiya ezinhle ziningi;

3) Uma usebenzisa ingxube yezinhlobo ezahlukene ze-silica, engeza izinhlayiya eziqinile ekushiseni okuphezulu kanye nezinhlayiya ezinhle ekushiseni okuphansi;

I-4) Ngezinto zokusetshenziswa ze-silica ezinokwakheka okuminyene, izinhlayiya zingaba ngamaholo, kungenjalo zibe ngcono.

Umkhuba wokukhiqiza ubonisa ukuthi usayizi wezinhlayiyana ezibalulekile zesitini se-silica esijwayelekile ngu-2 ~ 3mm, futhi uma i-quartz ye-vein isetshenziswa njengempahla eluhlaza, ubukhulu bezinhlayiyana bungaba ngu-2mm.

Izici zokubumba zezitini ze-silica zibonakala ngokuyinhloko ezicini ezintathu: izici zokubumba ze-blank, ukwakheka okuyinkimbinkimbi kwesimo sezitini kanye nomehluko omkhulu wekhwalithi eyodwa.

I-silicon billet iyinto ephansi yepulasitiki, ngakho-ke ingcindezi yokubumba kufanele inyuswe ngendlela efanele. Izitini ze-silica ze-coke oven zinezimo eziyinkimbinkimbi, isisindo esisodwa, kanti ezinye zinobukhulu obungu-160mm, ngakho-ke kungcono ukusebenzisa ukubumba okukabili. Uma indlela yokulingisa i-vibration yamukelwa, izinzuzo zayo zisobala kakhulu. Izitini ze-silica zizokhula ngevolumu lapho zixoshwa, ngakho-ke ubukhulu besikhunta sezitini kufanele buncishiswe ngokufanele.

Izitini ze-silicon zizoshintsha isigaba ngesikhathi sokudubula, okuletha ubunzima ekudubuleni. Ngakho-ke, izinguquko zomzimba kanye namakhemikhali omzimba womlilo, ukwakheka nosayizi womzimba onesici, kanye nezici zomzimba womlilo kufanele kubhekwe ngokuphelele.

1) Lapho izinga lokushisa lingaphansi kuka-600 ℃, izinga lokushisa kufanele liphakanyiswe ngokushesha nangokulinganayo;

2) 700～1100℃ izinga lokushisa liyashesha kunangaphambili;

3) Ezingeni lokushisa lika-1100～1430℃, izinga lokushisa kufanele lehliswe kancane kancane;

I-4) Ukushiswa kwamalangabi okunciphisa okubuthakathaka kusetshenziswa esiteji sokushisa okuphezulu, futhi izinga lokushisa kuhhavini lisakazwa ngokulinganayo ukugwema ukulimala emzimbeni wezitini ngelangabi. Ngemva kokufinyelela izinga lokushisa eliphezulu le-sintering, kufanele kube nesikhathi esanele sokubamba, futhi isikhathi sokubamba sishintshashintsha phakathi kuka-20～48h;

5) Ingapholiswa ngokushesha ngaphezu kuka-600℃ 800℃, futhi kungcono ukupholisa kancane ekushiseni okuphansi.