Amfani da yanayin tubali mai banƙyama don kiln

A karkashin yanayi na al’ada, babban dalilin tubalin da aka yi amfani da shi don rufin kiln shine don inganta ingantaccen rufin, maimakon jinkirta samarwa saboda lalacewar tubalin da aka yi amfani da su yayin aiki. Sabili da haka, ya kamata a zaɓi tubalin tubalin don tanderun bisa ga rayuwa da inganci na tanderun. Bulo mai jujjuyawa wani abu ne na inorganic wanda ba na ƙarfe ba tare da iyakacin juriya na wuta sama da 1580°C. Babban zafin jiki da kwanciyar hankali ba tare da ɗaukar nauyi ba na tubalin da aka lalata, wato, halayen rashin narkewa da laushi a ƙarƙashin babban zafin jiki da kuma matakan da ba a ɗauka ba, ana kiransa refractoriness, wanda ke bayyana ainihin halaye na tubalin tubali.

Bulogin da ke jujjuyawa, azaman maɓalli don manyan murhun wuta da sauran wuraren zafi, na iya tsayayya da tasirin jiki da na inji daban-daban. Don haka, dole ne a cika waɗannan ƙa’idodi na asali:

(1) Domin saduwa da buƙatun amfani da zafin jiki mai girma, ya kamata ya kasance yana da halaye na rashin laushi da rashin narkewa a isasshen zafin jiki.

(2) Yana iya jure wa nauyin wutar lantarki da damuwa wanda sau da yawa yakan yi a lokacin aiki, baya rasa ƙarfin tsari, kuma baya yin laushi, lalacewa da rushewa a yanayin zafi. Gabaɗaya ana bayyana ta yanayin zafi mai laushi.

(3) A babban zafin jiki, ƙarar yana da ƙarfi, kuma jikin kiln ko gangar jikin ba zai rushe ba saboda yawan faɗaɗa samfurin, ko fashe saboda raguwar wuce gona da iri, don haka rage rayuwar sabis. Gabaɗaya la’akari da ƙimar haɓakar haɓakar thermal da reheating shrinkage (ko faɗaɗa).

(4) Bulogin da ke jujjuyawa suna da tasiri sosai ta yanayin tanderu. Saboda ingantaccen canjin zafin jiki da dumama mara daidaituwa, jikin tanderun yana da sauƙin lalacewa. Sabili da haka, ana buƙatar samun takamaiman matakin juriya na zafin zafi.

(5) A yayin da ake amfani da shi, tubalin da ke jujjuyawar galibi ana yin oxidized ta hanyar maganin ruwa, gaseous ko ƙaƙƙarfan kwayoyin halitta, yana sa samfurin ya lalace kuma ya lalace. Sabili da haka, ana buƙatar samfurin don samun ƙimar juriya na lalata.

(6) A cikin aikace-aikacen aikace-aikacen, tubalin da ba a so ba sau da yawa ana lalata su ta hanyar wuta mai sauri da ƙura, lalatawar ƙarfe na ruwa da narkakkar tukwane, da lahani tsakanin ƙarfe da sauran albarkatun ƙasa. Don haka, ana buƙatar samun isasshen ƙarfi da juriya na lalata.