Mineral raw khoom rau kev uasilica cibyog cov pob zeb siliceous nrog SiO2 cov ntsiab lus ntau dua 96%. Tsis tas li ntawd, muaj cov additives xws li txiv qaub, mineralizers thiab organic binders.
1. Silica raw khoom
Silica pob zeb feem ntau hu ua silica hauv kev lag luam. Nws yog lub ntsiab lus dav dav rau kev lag luam blocky silicate ntxhia raw cov ntaub ntawv, tseem hu ua quartzite. Lub ntsiab ntxhia hauv silica yog quartz SiO2, thiab lwm yam khoom siv yog impurity minerals. silica raw khoom siv hauv kev lag luam suav nrog cemented silica (cemented quartzite) thiab crystalline silica (crystalline quartzite).
2. Khib silicone cib
Cov silica refractory cib uas raug rho tawm haujlwm hauv cov txheej txheem ntawm silicon cib tuaj yeem siv los ua cov khoom siv raw, uas tuaj yeem txo qhov kev nthuav dav ntawm cov cib blanks, yog li txo qhov hluav taws xob pov tseg (nce qhov porosity).
3. Txiv qaub
Nws ua raws li kev sib khi, sib txuas cov quartz hais nyob rau hauv lub cib blanks, ua kom lub zog ntawm cib blanks tom qab ziab, thiab ua raws li ib tug mineralizer thaum lub sij hawm firing txheej txheem los txhawb lub transformation ntawm quartz.
4. Mineralizer
Cov mineralizers siv nyob rau hauv ntau lawm xws li dov steel nplai (hlau nplai), qhib-hearth slag, sulfuric acid slag, pyrolusite, thiab lwm yam.
5. Organic binder
Txhawm rau txhim kho lub plasticity ntawm qhov khoob thiab lub zog ntawm lub cib tom qab ziab, ib qho nyiaj ntawm cov organic binder yuav tsum tau ntxiv rau qhov khoob. Feem ntau siv ib qho yog sulfite pulp khib nyiab kua.
Kev ua tau zoo ntawm cov silica tshwj xeeb cib
1. High-density thiab high-thermal conductivity silica hluav taws cib
Txhim kho cov thermal conductivity ntawm silica firebricks muaj qee yam kev lag luam ntawm kev ua kom lub sijhawm coking thiab txhim kho cov khoom tsim tau. Yog li ntawd, kev tsim cov high-density thiab high-thermal conductivity silica hluav taws cib tau nyiam cov neeg nyiam.
Cov theem muaj pes tsawg leeg ntawm silica refractory cib yog crystalline theem (tridymite, cristobalite thiab quartz), iav theem thiab pores. Ntawm lawv, iav theem thiab qhov pores yog lub ntsiab tseem ceeb uas txo cov thermal conductivity ntawm silicon cib. Cov pores muaj qhov cuam tshuam loj tshaj plaws, ua raws li iav theem.
Tam sim no, txoj hauv kev los txhim kho cov thermal conductivity ntawm silicon refractorybricks yog tsuas yog ua kom cov ntsiab lus ntawm tridymite thiab txo cov porosity.
Xaiv cov khoom siv tshwj xeeb silica thiab cov khoom siv ntxiv uas tuaj yeem hloov mus rau SiO2, nruj me ntsis kho cov txheej txheem tua hluav taws, thiab tua cov cib nyob rau hauv kev tswj hwm huab cua yog ua tau rau kev loj hlob ntawm high-density thiab high-thermal conductivity silicon hluav taws cib.
2. Lwm yam tshwj xeeb silica cib
Silicon chrome bricks muaj kev tiv thaiv siab rau cov teebmeem ntawm hlau oxide thiab slag; silicon zirconium cib thiab silicon cordierite cib muaj thermal shock stability, silicon carbide cib tsis tsuas yog muaj thermal shock stability tab sis kuj muaj siab hnav tsis kam thiab thermal conductivity, thiab lwm yam.
