Iindaba

Izitena eziphezulu ze-alumina ze-furnaces eziqhumayo zenziwe nge-bauxite yezinga eliphezulu njengeyona nto iphambili, ehlanganiswe, icinezelwe, yomiswe kwaye ifakwe kwiqondo lokushisa eliphezulu.Ziimveliso ezilahlayo ezisetyenziselwa ukufakwa kwi-lining furnaces.

1. Iimpawu ezibonakalayo kunye neekhemikhali zezitena eziphezulu ze-alumina

INDEX	SK-35	SK-36	SK-37	SK-38	SK-39	SK-40
Refractoriness(℃) ≥	1770	1790	1820	1850	1880	1920
Ubuninzi Bobuninzi (g/cm3) ≥	2.25	2.30	2.35	2.40	2.45	2.55
I-Porosity ebonakalayo(%) ≤	23	23	22	22	21	20
Amandla Okutyumza okubandayo(MPa) ≥	40	45	50	55	60	70
Utshintsho olusisigxina lomgca@1400°×2h(%)	±0.3	±0.3	±0.3	±0.3	±0.2	±0.2
I-Refractoriness Under Load @ 0.2MPa(℃) ≥	1420	1450	1480	1520	1550	1600
I-Al2O3(%) ≥	48	55	62	70	75	80
I-Fe2O3(%) ≤	2.0	2.0	2.0	2.0	2.0	1.8

2. Ziphi izitena eziphezulu ze-alumina ezisetyenziswa kwiziko eliqhumayo?

Izitena eziphezulu ze-aluminium zakhiwe kwi-shaft yesithando somlilo we-blast furnace.I-furnace shaft ifumaneka kwindawo ephezulu yesithando somlilo.Ububanzi bayo buyanda ngokuthe ngcembe ukusuka phezulu ukuya ezantsi ukulungelelanisa nokwandiswa kwe-thermal yentlawulo kunye nokunciphisa ukungqubuzana kodonga lwesithando somlilo kwintlawulo.Umzimba wesithando somlilo uhlala kwiziko lomlilo.I-50% -60% yokuphakama okusebenzayo.Kule meko, i-furnace lining idinga ukuhlangabezana neemfuneko ezinjalo, kwaye iimpawu zezitena eziphezulu ze-alumina zi-refractoriness ephezulu, ubushushu obuphezulu bokuthambisa phantsi komthwalo, ukuxhathisa kwe-asidi, ukuxhathisa kwe-alkali, ukuchasana okunamandla kukhukuliseko lwe-slag, kunye nokumelana nokunxiba kakuhle.Inokwaneliseka, ngoko ifanelekile kakhulu ukuba umzimba wesithando somlilo ufakwe kwizitena eziphezulu ze-alumina.

Oku ngasentla sisingeniso kwizitena eziphezulu ze-alumina ukwenzela ii-furnaces eziqhumayo.Ubume be-lining of the furnace buyinkimbinkimbi kwaye kukho iintlobo ezininzi zezinto eziphikisayo ezisetyenzisiweyo.Izitena eziphezulu ze-alumina yenye yazo.Kukho iinkcukacha ezi-3-5 zezitena eziphezulu ze-alumina ezisetyenzisiweyo.Izitena eziphezulu ze-alumina zikaRobert zinokusetyenziswa kwiindidi ezahlukeneyo.Ukuba kuyimfuneko, nceda uqhagamshelane nathi.