Indlela yokukhetha izixhobo eziphikisayo intsimbi eqengqelekayo zokufudumeza iziko

I-Steel rolling ukufudumeza i-furnace isoloko isetyenziselwa ukufudumeza iibhilidi okanye i-ingot encinci ye-ingot ye-thermal ye-thermal, ngokukodwa ihlanganiswe nophahla lwesithando somlilo, udonga lwesithando somlilo kunye nezantsi. Ubushushu bexesha elide lokusebenza bungaphantsi kwe-1400 ℃. Kwiziko zokufudumeza eziqhubekayo okanye ze-annular, ubushushu beziko lecandelo ngalinye linokwahlulwa lube ziindawo ezintathu zobushushu obuphantsi, obuphakathi kunye nobushushu obuphezulu, kwaye ubushushu yi-500-800 ℃ kunye ne-1150-1300 ℃ ngokulandelelana. , 1200-1300℃.

Isizathu esona sizathu somonakalo wesithando somlilo sibangelwa ukuguquka kweqondo lokushisa okubangelwa ukusebenza kwangethuba kunye nokuvalwa kwesithando somlilo, okubangelwa ukuguqulwa kunye nokuchithwa kwesithando somlilo; esona sizathu siphambili somonakalo ophantsi kwesithando somlilo kunye nengcambu yodonga lwesithando somlilo yimpendulo yeekhemikhali phakathi kwesinyithi esinyibilikisiweyo se-oxide slag kunye nezitena. .

Ngokweemeko zokusebenza kwesithando somlilo, kuyimfuneko ukukhetha izinto ezifanelekileyo eziphikisayo ngokwemiqathango yamacandelo ahlukeneyo ukufezekisa ukucwangciswa okufanelekileyo kwezinto eziphathekayo, ukwenzela ukuba i-furnace lining material ingaba nobomi obude kwaye igcine amandla. Emva koko, unokukhetha njani izixhobo eziphikisayo kwiziko lokufudumeza intsimbi:

Emva kweminyaka ephantse ibe yi-30 yophuhliso, izixhobo ezinqandayo zokufudumeza iziko ngoku zidityaniswa ngokubanzi kunye ne-refractory castables + izitena zokubambelela. Ulwakhiwo lulula, kulula ukusebenza, kwaye luphantsi kwiindleko zobunjineli. Yimathiriyeli engcono yokwakhiwa kwe-industrial kiln.

01 indawo yobushushu obuphantsi

Ummandla weqondo lokushisa eliphantsi ubizwa ngokuba yindawo yokufudumala yentsimbi yesithando somlilo. Ubushushu bayo bokusebenza ngokuqhelekileyo bungaphantsi kwe-1200 ℃. Ukusetyenziswa kwe-alumina ephezulu enokuchithwa kunye nomxholo we-Al2O3 malunga ne-50-55% inokuhlangabezana ngokupheleleyo neemfuno zokusetyenziswa, okanye ukuphosa ukukhanya kunokusetyenziswa Izinto ezisetyenziswayo njengombane wesithando somlilo unokunciphisa ubushushu bomhlaba wodonga lwesithando somlilo, ukuze ulondoloze. amandla kunye nokunciphisa ukusetyenziswa.

02Phakathi kunye nendawo yobushushu obuphezulu

Indawo yobushushu obuphezulu ikwabizwa ngokuba yindawo yokufudumeza kunye nendawo yokuntywila yesithando somlilo esiqengqelekayo. Ubushushu bokusebenza ngokuqhelekileyo bumalunga ne-1200-1350°C. I-samente ephantsi ekhutshweyo kunye nomxholo we-Al2O3 malunga ne-60% inokukhethwa. Izinto eziluhlaza ze-castable kufuneka zikhethwe kunye nomxholo wokungcola. Imathiriyeli ekrwada esezantsi inokuphucula ukusebenza kwe-castable malunga ne-1350 ℃.

I-castable ye-lining yokusebenza idinga ukukhetha indlela yokumisa idibaniswe nezitena ze-anchor. Izitena ze-anchor zingaba zitena eziphezulu ze-aluminium ze-anchor zomgangatho wesizwe we-LZ-55.