Acid-resistant castable yog cov khoom siv amorphous refractory tsim los siv rau hauv cov kab mob acidic los tiv thaiv corrosion nyob rau hauv acidic ib puag ncig.
Nws yog tsim los ntawm kev sib xyaw cov kua qaub- cov kab mob sib kis, cov hmoov zoo, cov khoom sib txuas, thiab cov khoom ntxiv hauv cov khoom sib luag.
Thaum lub sij hawm thov, dej, phosphoric acid, los yog dej - iav binder ntxiv; cov sib tov yog ces nplawm, vibrated, thiab cam khwb cia rau hauv cov duab xav tau. Tom qab kho thiab tua, cov khoom tsim muaj cov txheej txheem zoo hauv ob sab phlu.
Acid-cov castables resistant yog tsis haum rau siv nyob rau hauv alkaline rauv hauv ob sab phlu. Hloov chaw, lawv tau tsim tshwj xeeb rau cov cheeb tsam uas muaj acidic gas corrosion nyob rau hauv qhov kub ntawm 600℃txog 1200 degree.
Piv nrog rau siab -alumina castables, lawv pom qis dua siab -kub tsis kam tab sis muaj kev tiv thaiv zoo tshaj rau acid corrosion.
Cov castables no siv ntau yam sib sau ua ke thiab cov ntawv khi kom zoo - kho lawv cov kua qaub tshwj xeeb - cov khoom tiv taus.
Acid-cov castables resistant feem ntau yog siv quartz xuab zeb, pob zeb dag, andesite, los yog pyrophyllite ua aggregate. Lawv thawj cov tshuaj muaj pes tsawg leeg yog nplua nuj nyob rau hauv silica, ua kom ruaj khov kev ua tau zoo nyob rau hauv acidic ib puag ncig.
Txawm li cas los xij, cov chav kawm ntawm cov castables no muaj kev cuam tshuam rau corrosion los ntawm alkalis, kub phosphoric acid, hydrofluoric acid, thiab cov khoom uas muaj roj ntau.
High-qib acid-resistant castables kuj tseem tuaj yeem siv cov binders resin; Txawm li cas los xij, cov ntaub ntawv no tsim cov pa taws thaum lub sij hawm tua hluav taws thiab siab - kub ua haujlwm, thiab lawv nqa tus nqi siab dua.
Acid-cov castables resistantyog dav siv nyob rau hauv:
Cov tshuaj tiv thaiv pej thuam, pickling tank, thiab chimneys hauv kev lag luam tshuaj;
Desulfurization yees thiab qhov kawg txias yees hauv kev lag luam metallurgical;
Cov kab hluav taws xob thiab cov kab hluav taws xob hauv cov khoom siv hluav taws xob tsim hluav taws xob;
Acidic gas corrosion zones nyob rau hauv cov khib nyiab incinerators hauv kev lag luam tiv thaiv ib puag ncig.
Ntxiv rau cov cuab yeej siv los tuav cov kua qaub thiab cov khoom siv hauv kev lag luam uas tsis yog -ferrous hlau.
Tsis hais txog ntawm daim ntawv thov kev lag luam tshwj xeeb, kev teeb tsa thiab kev kho kom zoo yog qhov tseem ceeb.
Txhua theem-los ntawm qhov chaw npaj thiab ntxuav kom ntseeg tau tias qhov sib xyaw ntawm cov castable, compacting nws kom txo qhov porosity, thiab txawm kho nws hauv huab cua qhuav- yuav tsum tau ua kom zoo.
Kev kho yog ib kauj ruam tseem ceeb; nws yuav tsum tau ua kom maj mam thiab ua tib zoo txhawm rau txhawm rau txhawm rau txhawm rau tshem tawm tag nrho cov dej ntawm lub cev thiab tshuaj lom neeg, yog li ua kom cov kua qaub- tiv taus castable kom paub txog nws lub peev xwm ua haujlwm tau zoo.