Yiziphi izici zokugqwala kwamakhemikhali we-refractory ramming esithandweni somlilo esiphakathi

I-refractory ramming material yesithando somlilo esimaphakathi into eyomile edlidlizayo engabizi kakhulu, eyenziwe nge-super bauxite clinker, i-corundum, i-spinel, i-magnesia, i-sintering agent, njll. Ifanele ukuncibilika kwe-carbon steel, i-alloy steel, insimbi engagqwali kanye nensimbi ephezulu ye-manganese, enesikhathi eside sokuphila futhi ukusebenza kwezindleko eziphezulu. Ukugqwala kwamakhemikhali kwezinto ezinqamulelayo ze-refractory zesithando somlilo esiphakathi nendawo ikakhulukazi kunalezi zingxenye ezilandelayo.

(1) Ukugqwala kwensimbi encibilikisiwe. Ulayini lwesithando somlilo lugqwala ikakhulukazi yikhabhoni esensimbini encibilikisiwe. Ukugqwala kwe-SiO2+2C—Si+2CO kwenzeka lapho kuncibilika insimbi empunga ne-ductile iron, futhi kuba kubi kakhulu lapho kuncibilikiswa i-iron ductile.

(2) Ukuhlasela kwe-slag. I-CaO, i-SiO2, i-MnO, njll. ku-scrap steel cishe yenze i-slag yephoyinti elincibilikayo eliphansi, ikakhulukazi i-CaO iyingozi kakhulu. Ngakho-ke, kufanele kuqashelwe ukuhlanzeka kwezinto ezisetshenziswayo. Imfucuza enezindonga ezincane ene-oxidation ebucayi izodala i-slag eyengeziwe futhi kufanele isetshenziswe kancane ngangokunokwenzeka noma isetshenziswe kumaqoqo, ngesithando somlilo esincane.

(3) I-slag ephikisayo. I-slag ephezulu yokuncibilika yenziwe nge-aluminium yekhwalithi, ehlangana ne-SiO2 olayini lwesithando somlilo ukuze ikhiqize i-mullite (3A12O3-2SiO2) enephuzu lokuncibilika lika-1850°C. Ngakho-ke, kuyadingeka ukususa i-aluminium eqagelwe ikhwalithi ukuze ugweme ukwenza i-slag ephezulu yokuncibilika.

(4) Izithasiselo. Uma i-slag coagulant noma i-slag flux isetshenziswa ekusebenzeni kokuncibilikisa, izokwandisa ukugqwala komugqa wesithando somlilo, ngakho-ke kufanele kugwenywe ngangokunokwenzeka.

(5) Ukunqwabelana kwekhabhoni. Indawo lapho ikhabhoni inqwabelana khona iphezu kobuso beqhwa kulwelwesi lwesithando somlilo, futhi ibuye inqwabelane ongqimbeni lokufakelwa. Isizathu sokunqwabelana kwekhabhoni ukuthi udoti okhishwe uwoyela, njengama-chips okusika, wasetshenziswa ekuqaleni kokusetshenziswa kabusha kwesithando somlilo. Ngenxa yokuthi ulayini lwesithando somlilo lwalungashiswanga ngokwanele, i-CO yangena ngemuva kolayini lwesithando somlilo, yabangela impendulo engu-2CO—2C+O2. Ikhabhoni ekhiqiziwe iqoqana ebusweni beqhwa noma ezimbotsheni zezinto ezifakwa ngaphakathi. Lapho ukunqwabelana kwekhabhoni kwenzeka, kuzodala ukuvuza komhlabathi kwesithando somlilo, ngisho nezinhlansi ezivela kukhoyili.