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U isticmaal shuruudaha lebenka refractory ee foornada

Isticmaalka shuruudaha lebenka refractory ee foornada

Xaaladaha caadiga ah, ujeedada ugu weyn ee lebenka refractory ee dahaarka foornada waa in la wanaajiyo waxtarka dahaarka, halkii ay dib u dhigi lahaayeen wax soo saarka sababtoo ah waxyeellada lebenka refractory inta lagu jiro habaynta. Sidaa darteed, lebenka refractory ee foornada waa in lagu doortaa iyadoo loo eegayo nolosha iyo waxtarka foornada. Lebenka refractory waa walxo aan bir ahayn oo aan organic ahayn oo leh xadka iska caabbinta dabka ka weyn 1580°C. Heerkulka sare iyo xasiloonida aan culeyska lahayn ee lebenka refractory, taas oo ah, sifooyinka aan dhalaaleynin iyo jilicsanaanta heerkulka sare iyo heerarka aan culeyska lahayn, waxaa loo yaqaan ‘refractoriness’, taas oo muujinaysa sifooyinka aasaasiga ah ee lebenka refractory.

Lebenka refractory, oo ah walxaha muhiimka ah ee foornooyinka heerkulka sare iyo tas-hiilaadka kale ee kulaylka, waxay u adkeysan karaan saameyno kala duwan oo jireed iyo farsamo. Sidaa darteed, waa in la buuxiyaa heerarka aasaasiga ah ee soo socda:

(1) Si loo buuxiyo shuruudaha isticmaalka heerkulka sare, waa inay lahaataa sifooyinka aan jilicsanayn oo aan dhalaalilin heerkul sare oo ku filan.

(2) Waxay u adkeysan kartaa culeyska foornada iyo walbahaarka inta badan u dhaqma inta lagu jiro hawlgalka, ma laha awood qaabdhismeed, mana jilciso, ma jajabiso oo dumiso heerkulka sare. Guud ahaan waxaa lagu muujiyaa heerkulka jilciya.

(3) Heerkulka sare, mugga ayaa xasilan, iyo jidhka foornada ama jidhka ku shubaya ma dumi doono sababtoo ah balaadhinta xad-dhaafka ah ee alaabta, ama dildilaaca sababtoo ah hoos u dhac xad dhaaf ah, taas oo yaraynaysa nolosha adeegga. Guud ahaan ka fiirso isku-darka balaadhinta kulaylka iyo dib u kululaynta yaraynta (ama balaadhinta).

(4) Lebenka refractory waxaa si weyn u saameeya xaaladaha foornada. Sababtoo ah isbeddelka wanaagsan ee heerkulka iyo kuleylka aan sinnayn, jidhka foornada ayaa si fudud u dhaawacma. Sidaa darteed, waxaa loo baahan yahay in la yeesho heer go’an oo ah caabbinta shoogga kulaylka.

(5) Inta lagu jiro isticmaalka, lebenka refractory waxaa inta badan oksaydhed by xal dareere ah, gaas ama walxaha organic adag, taasoo keentay in alaabta la daxaloobay oo waxyeelo. Sidaa darteed, badeecada ayaa looga baahan yahay inay yeelato heer gaar ah oo iska caabbinta daxalka.

(6) Habka codsiga, lebenka refractory waxaa inta badan daxaleeyey by olol xawaaraha sare socda iyo boodhka, daxalka biraha dareere ah iyo dhalaalka dhalaalay, iyo dhaawac shil u dhexeeya biraha iyo alaabta ceeriin kale. Sidaa darteed, waxaa loo baahan yahay in la helo xoog ku filan iyo iska caabin daxalka.