Kuyini a isitini esishisayo esishisayo esingasindi futhi yini ukusetshenziswa kwayo?

Siyini isitini esingasindi sokufakwa kwe-thermal? Njengoba igama liphakamisa, izitini ezilula ngokuqhathaniswa ezinomsebenzi wokushisa oshisayo zisetshenziselwa kakhulu ukugcinwa kokushisa nokushisa ukushisa, ukonga amandla nokunciphisa ukushisa kwamandla okushisa.

1. Izitini zobumba ezilula

Lo mkhiqizo ungumkhiqizo ongasindi we-refractory, onokuqukethwe kwe-AL2O3 okungu-30% -46%, okuyisitini esiphikisayo sokugcina ukushisa. Izinto zokusetshenziswa eziyinhloko yi-clay clinker noma i-clay clinker elula kanye nobumba lwepulasitiki olukhiqizwa indlela evuthayo. Izinto zokusetshenziswa zixutshwa namanzi ukwenza udaka lwepulasitiki noma udaka, olukhishwayo noma olujikijelwe bese lomiswa endaweni ene-oxidizing engu-1250°C-1350°C.

2. Izitini eziphezulu ze-alumina ezingasindi

Eyaziwa nangokuthi isitini se-alumina ephezulu yokufakwa okushisayo, iyinto ephikisayo elula enokuqukethwe kwe-alumina engaphezu kuka-48%, ikakhulukazi eyakhiwe nge-mullite nengilazi noma i-corundum. Ukuminyana ngobuningi kungu-0.4~1.359/cm3. I-porosity ingu-66% ~ 73%, futhi amandla okucindezela yi-1~8MPa. Ukumelana nokushaqeka okuhle kokushisa;

Izitini ezine-alumina ephezulu engasindi ngokuvamile zisebenzisa i-bauxite clinker ephezulu ye-alumina, engeza inani elincane lobumba, bese zisebenzisa indlela yomoya noma indlela yegwebu ukuphonsa ngendlela yodaka ngemva kokugaywa, bese zishisa ku-1300~1500℃. I-Alumina yezimboni ngezinye izikhathi ingasetshenziswa esikhundleni sengxenye ye-bauxite clinker.

Ifanele ulwelwesi lwangaphakathi kanye nongqimba lokufakwa kokushisa kuhhavini, kanye nezingxenye ezingagqwalile futhi zikhuculwe ngezinto ezincibilikisiwe eziqinile ezisezingeni eliphezulu. Lapho uthintana ngqo nelangabi, izinga lokushisa elingaphezulu akufanele lidlule ku-1350°C.

3. Izitini ze-Mullite, ezaziwa nangokuthi izitini ze-mullite ezingasindi noma i-mullite efaka ukushisa okushisayo, zenziwe nge-high-alumina bauxite clinker njengento eluhlaza eyinhloko, zisebenzisa igwebu noma izindlela zamakhemikhali ukwakha isakhiwo esinezimbobo, futhi izithako zixubene namanzi. yisitini esivikela ukushisa esenziwe ngobumba bepulasitiki noma udaka, esikhishwa futhi sishiswe ekushiseni okuphezulu.

Usayizi ojwayelekile wesitini esikhanyayo se-mullite poly ngu-230 * 114 * 65mm, ngokuvamile ukuminyana kwenqwaba ngu-0.6-1.2g/cm3, futhi izinga lokushisa lokusetshenziswa liyi-1300-1550 degrees. Umumo nosayizi kungenziwa ngokwezifiso ngokuya ngezidingo zekhasimende. Ngokwezinga lokushisa lokusebenza, i-JM-23, JM-26, JM-28 ingahlukaniswa ngezinhlobo ezintathu. Umkhiqizo ungathintana ngqo nelangabi, futhi unezici zokumelana nezinga lokushisa eliphezulu, isisindo esilula, ukuhanjiswa kwe-thermal okuphansi, kanye nomphumela obalulekile wokonga amandla.