Babban Bricks Alumina Anti-Spalling Don Rotary Kiln Siminti

Ayyukan samfur:Yana yana da ƙarfi high zafin jiki ƙarar kwanciyar hankali, m thermal girgiza juriya, sa juriya, sinadarai juriya da sauran halaye.

Babban amfani:An fi amfani da shi a yankunan miƙa mulki na siminti rotary kilns, bazuwar tanderu, manyan bututun iska, da sauran kayan aikin zafi waɗanda ke buƙatar juriya na zafin zafi.

Fasalolin samfur:A matsayin kayan aiki na asali na masana'antar refractory, manyan tubalin alumina suna da halayen haɓaka mai girma, ingantacciyar yanayin zafi mai ɗaukar nauyi (kusan 1500 ° C), da juriya mai kyau. Ana amfani da su sosai a cikin kiln masana'antu a masana'antu daban-daban. Duk da haka, , saboda babban corundum lokaci abun ciki na talakawa high alumina tubalin, da corundum lokaci lu'ulu'u a cikin sintered kayayyakin ne ya fi girma, da fatattaka da peeling ne yiwuwa ga faruwa a lokacin da ci karo da m sanyaya da dumama yanayi. Matsakaicin girgiza zafin zafi a ƙarƙashin 1100°C yanayin sanyaya ruwa yana iya kaiwa sau 2-4. A cikin tsarin samar da ciminti, saboda ƙarancin zafin jiki da kuma buƙatun aiki don kayan haɓakawa don manne wa fatar kiln, ana iya amfani da bulo mai tsayi na alumina kawai a cikin yankin jujjuyawar kiln, wutsiyar kiln da preheater na tanderun bazuwar. .

Babban tubali na alumina na anti-spalling babban tubalin aluminium tare da kaddarorin anti-flaking da aka samar akan babban clinker aluminium kuma an ƙara su da ZrO2 ko wasu kayan. Ana iya raba su zuwa nau'i biyu, ɗaya shine tubalin anti-flaking high-alumina masu ɗauke da ZrO2, ɗayan kuma shine Nau'in farko shine bulo mai ƙarfi na alumina wanda ba ya ƙunshi ZrO2.

Bulogin alumina masu ƙarfi na anti-spalling na iya tsayayya da nauyin zafi mai zafi, kada ku raguwa a cikin ƙara kuma suna da haɓaka iri ɗaya, kar ku faɗo ko rugujewa, suna da ƙarfin zafin jiki na al'ada sosai da ƙarfin zafin jiki mai ƙarfi, babban nauyi mai laushi, kuma suna da juriya mai kyau na zafi. Yana iya jure tasirin canje-canjen zafin jiki na kwatsam ko dumama mara daidaituwa, kuma ba zai fashe ko bawo ba. Bambanci tsakanin bulogin alumina masu ƙarfi da ke ɗauke da ZrO2 da bulogin alumina masu ƙarfi ba tare da ZrO2 ba ya ta'allaka ne a cikin hanyoyin rigakafin flaking daban-daban. ZrO2-mai ƙunshe da manyan bulogin alumina na anti-flaking suna amfani da kayan zircon don yin amfani da kyakkyawan juriya na lalata. ZrO2 yana tsayayya da yashwar sulfur-chlor-alkali. A lokaci guda kuma, a yanayin zafi mai zafi, SiO2 da ke cikin zircon zai sami canjin lokaci na crystal daga cristobalite zuwa wani lokaci na ma'adini, wanda ya haifar da wani tasirin fadada girma, don haka rage haɗarin rigakafin sulfur-chlor-alkali. A lokaci guda, yana hana spalling a lokacin zafi da sanyi matakai; Babban tubalin alumina masu hana flaking waɗanda ba su ƙunshi ZrO2 ana samarwa ta hanyar ƙara andalusite zuwa manyan bulogin alumina. Ana amfani da andalusite a cikin samfurin don haɓakawa na biyu a cikin kwandon siminti. Yana haifar da tasirin ƙaramar haɓakawa wanda ba za a iya jurewa ba ta yadda samfurin ba zai ragu ba lokacin da aka sanyaya shi, yana kawar da damuwa na raguwa da hana ɓarna tsarin.

Idan aka kwatanta da bulogin alumina masu ƙarfi waɗanda ba su ƙunshi ZrO2 ba, tubalin anti-spalling high-alumina wanda ke ɗauke da ZrO2 yana da mafi kyawun juriya ga shiga ciki da yashwar sulfur, chlorine da alkali, don haka suna da kyawawan kaddarorin anti-flaking. Duk da haka, saboda ZrO2 abu ne mai wuyar gaske, yana da tsada , don haka farashi da farashi sun fi girma.Babban bulogin alumina mai karewa da ke ɗauke da ZrO2 ana amfani da shi ne kawai a yankin miƙa mulki na siminti rotary kilns. Babban tubalin da ba shi da ZrO2 mai hana-flaking, galibi ana amfani da su a cikin tanderun bazuwar layin samar da siminti.