- 13
- Oct
Ungasarudze sei mapfekero-asingadzivirirwi enzvimbo dzinotambura dzakadai semazimbe ejekiseni emarasha pamuromo wesimendi kilns?
Ungasarudze sei mapfekero-asingadzivirirwi enzvimbo dzinotambura dzakadai semazimbe ejekiseni emarasha pamuromo wesimendi kilns?
Mune iyo nyowani yakaoma-sisitimu yezvidhinha, iyo yemoto muromo, marasha jekiseni kamwene uye zvimwe zvinzvimbo zvinotambura nemhedzisiro mhedzisiro yekukwirira tembiricha, kupisa kwemafuta, ngura uye kukuvara, uye zvemhando yepamusoro zvisina kugadziriswa zvinodzivirira zvekudzivirira zvinhu zvinofanirwa kushandiswa. Pasi pemamiriro ezvinhu akajairika, zvinodziya zvinopisa uye zvinokanganisa zvemasementi esimende zvine zvicherwa senge refractory, mullite, andalusite, uye silicon carbide.
AwRaw zvinhu zvehunhu. Refractory yakakamurwa kuita calcined inoratidzira uye yemagetsi fusion pombi fittings. Pakati pavo, iyo inoratidzira yemagetsi fusion pombi fittings inowanikwa nekunyungudutsa iron oxide kana bauxite mune inopisa moto uye ipapo kutonhora kwemvura. Iyo fused pombi fittings ine hombe refractory makristasi, yakakwira hama density, mashoma emhepo maburi uye yakakwira simba. Yakavezwa inoratidzira ine makristasi madiki, mazhinji maburi ekuburitsa uye simba rakaderera, asi ine iri nani yekupisa yekuvhunduka kuramba. Pane zvese, kuramba moto uye kudzvinyirira kwakanaka kwazvo, asi kupisa kwekuvhunduka kwakashomeka, kupisa kupisa kuri kukuru, uye kunamatira kweiyo alkali-resistant primer kwakanyanya.
Mullite zvakare yakakamurwa kuita maviri marudzi: calcined uye fused pombi fittings. Pakati pavo, hunhu hweiyo yakasanganiswa mullite pombi fittings yakasimba. Pane zvese, mullite ine hunhu hweakanaka epamusoro-tembiricha volumetric kuvimbika, kwakanyanya kupisa kwekumanikidza simba, kushushikana kwekushushikana kwekuzorora, yepakati-chikamu-chepamusoro-tembiricha yekuvhunduka kusagadzikana uye yakaderera kupisa kutamisa.
Andalusite imwe yemaminerari muboka rekyanite. Kyanite zvicherwa zvinoreva akawanda akati wandei emaminerari nemakemikari fomati Al2O3-SiO2: kyanite, andalusite uye sillimanite. Kukosha kwemhando idzi dzemakristaro kwakanyanya kudzvanywa, rakachena ruvara uye yakanaka kunamatira kuramba. Munguva yese yekuita calcination, vanochinja kuita mullite uye makemikari zvinhu zvine yakakwira sio2 yemvura zvemukati, uye zvinofambidzana nekuwedzera vhoriyamu (Kyanite iri 16% ~ 18%, andalusite iri 3% ~ 5%, sillimanite iri 7% ~ 8% ).
Kana 1300 ~ 1350 ℃, kyanite inoshanduka kuita mullite uye calcite, uye inoshanduka nevhoriyamu ye + 18%. Iko kudya kwekyanite kunorambidzwa nekuda kwekuwedzera kwakanyanya. Kuzvimba kunokonzerwa nekushandurwa kwekyanite kunogona kushandiswa kudzikisira kudzikira kwezvisingagadzirisike zvekudzivirira zvinhu, uye mullite inoguma inogona kushandiswa kugadzirisa kupisa kwekushomeka kwekushomeka kwekukanganisa kunokanganisa. Nekudaro, iyo calcite inokonzerwa nekyanite kutendeuka haina kunaka kune kupisa kwekushisa.
Pana 1400 ° C, andalusite inoshanduka kuita mullite uye yakakwira-silicon yakaomeswa girazi chikamu, uye inoshanduka nevhoriyamu ye + 4%. Nekuti iko kuzvimba kudiki, zvinobatsira kuwedzera kudyiwa kwe andalusite. Iko kuzvimba kunokonzerwa neshanduko ye andalusite kunogona kushandiswa kudzikisira kudzikira kwezvisingagumi zvinodzivirira zvinhu zvekuisa, uye mullite inoguma inogona kushandiswa kugadzirisa kupisa kwekushamisika kwekushomeka kwevanopokana vanokanganisa. Musiyano ndewekuti iyo yakakwira-silicon yakadzvanywa girazi chikamu chinokonzerwa ne andalusite kutendeuka ine yakaderera kwazvo mutsara yekuwedzera coefficient, iyo inobatsira zvikuru kugadzirisa iyo yekupisa yekuvhunduka kuramba kweyekutsoropodza castables.
1500 ℃, sillimanite inoshandura kuita mullite; uye shanduko ine vhoriyamu ye + 8%. Pfungwa, iko kuzvimba kunokonzerwa neshanduko yesillimanite inogona kushandiswa kudzikisira kudzikira kweasina kugadzirwa inodzivirira zvinhu zvekuisa, uye iyo inoguma mullite inobatsirawo kugadzirisa kupisa kwekushomeka kwekuramba kweanokanganisa castables.
Naizvozvo, kyanite inowanzo shandiswa seantiseptic mune yakaderera uye yepakati isina kugadziriswa inodzivirira zvinhu zvekuvhara; andalusite inowanzo shandiswa seantiseptic mune yepakati uye yepamusoro-giredhi isina kugadziriswa inodzivirira zvinhu zvekuvhara; Iko tembiricha yekuchinja kwesillimanite yakanyanya kukwirira, uye kazhinji hazvigadzikane kubatana pamwe nekushongedzwa kwekusagadzikana kwekusagadzikana. Kuwedzera mumiririri kunyorera kweshoko.