Tom qab siv lub ladle hauv ob sab phlu ua haujlwm, yog tias tag nrho cov khoom seem ntawm lub ladle phab ntsa raug tshem tawm, nws yuav ua rau cov khoom pov tseg ntawm cov khoom siv refractory thiab nce tus nqi ntawm lub ladle. Yog li ntawd, los ntawm kev kho deg ntawm residual ladle phab ntsarefractory castables, cov ntaub ntawv qub ntawm lub ladle phab ntsa yog siv tau zoo los nrum cov txheej txheem ua haujlwm tshiab nyob rau theem tom ntej. Tus nqi ntawm cov khoom qub refractory khaws cia thaum lub sij hawm disassembly tuaj yeem txuag tau, uas ncaj qha txo kev siv cov ntaub ntawv refractory. noj, thiab thaum kawg ua tiav lub hom phiaj ntawm kev txo nqi.
1. Casting thev naus laus zis rau cov txheej txheem ua haujlwm hauv qab ntawm lub ladle
Ladle casting muaj cov kev xav tau siab ntawm kev sib xyaw zoo ntawm cov castables siv. Thaum lub sijhawm ua haujlwm sib tov, pib lub tov khoom ua ntej thiab tom qab ntawd tshem tawm cov castables. Thauj cov castables nruj me ntsis raws li qhov ntsuas lub zog ntawm lub tshuab knotting. Qhuav do rau 1 mus rau 2 feeb tom qab unloading, kom lub ladle castables Mix tusyees, ces ntxiv dej raws li qhov tseeb qhov teeb meem ntawm lub castable, xyuas kom meej tias cov dej ntxiv nyob rau hauv qhov ntau ntawm ± 7%, do rau 2 mus rau 3 feeb kom tag nrho muab cov dej thiab cov castable, thiab ua tiav qhov zoo tshaj plaws. Tus nqi ntawm cov dej ntxiv cuam tshuam rau kev ua haujlwm ntawm cov castable. Yog hais tias tus nqi ntawm cov dej ntxiv yog tsawg dhau lawm, qhov kub thiab txias tsis kam ntawm cov castable yog<20MPa; if the amount of water added is too much, the castable will segregate and reduce the anti-scouring performance of the castable.
Do cov refractory castables sib npaug raws li qhov ntau npaum li cas, thiab tom qab ntawd tshem cov khoom sib npaug mus rau hauv qab ntawm lub ladle. Tig lub vibrating pas nrig kom vibrate ntawm ntug txiav. Thaum lub sij hawm vibration txheej txheem, ob tug neeg yuav tsum rub lub vibrating qws nyob rau hauv rov qab kev taw qhia nyob rau tib lub sij hawm. Nres qhov kev vibration thaum tsis muaj npuas tshwm rau ntawm qhov chaw. Qhov no tuaj yeem ua kom lub zog sib txuas ntawm cov castables, cov castables sib xyaw yuav tsum tau nchuav thiab vibrated hauv 30 feeb. Lub thickness ntawm knotted hauv qab ntawm lub ladle yog txiav txim raws li tus txheej txheem txheej txheem txheej txheem ladle. Nws yog feem ntau yaug nrog cov breathable cib siv. Thaum lub sij hawm knotting txheej txheem ntawm lub ladle hauv qab, nws yuav tsum tau xyuas kom meej tias lub hauv qab ntawm lub ladle yog tiaj tus, vibrates tusyees, tsis muaj honeycombs, thiab tsis muaj khib nyiab nyob rau saum toj. Nws yuav tsum nyob ruaj ruaj rau 30 ~ Tos 40 feeb kom txog thaum lub qhov chaw pib. Tom qab thawj zaug teeb lub zog txaus, nruab lub overcast pwm.
2. Ladle phab ntsa ua hauj lwm txheej castable khoom nesting tshuab
Nqa cov log tsheb ua haujlwm rau hauv lub ladle thiab tso nws ncaj thiab ncaj. Txij li thaum steel ladle thiab log tsheb tau siv ua ke, lub log tsheb qhov sib txawv yog tswj nyob rau hauv qhov ntau ntawm 10mm. Tom qab lub log tsheb zaum, siv tus pas nrig txhawm rau txhim kho lub sijhawm ua kom lub log tsheb tsis muaj deflection tshwm sim thaum lub sij hawm nchuav vibrations. Thaum tsuas yog tso cib rau ntawm phab ntsa ladle, qhov sib txawv ntawm cov pwm thiab cov thawj ladle phab ntsa yuav tsum tau muab khi nrog asbestos xav kom tsis txhob muaj cov khoom xau thaum lub sij hawm vibration.
Lub refractory castables rau npog cov phab ntsa ntawm lub ladle yuav tsum muaj fluidity zoo. Tom qab cov castables yog stirred ib txwm, tsav lub tov khoom mus rau txoj hauj lwm ntawm lub ladle thiab tusyees pub cov khoom seem ntawm lub ladle thiab pwm. Nyob rau tib lub sijhawm, tig lub vibrator thiab vibrate thaum tso tawm cov khoom. Nyob rau hauv txoj kev no, tsis muaj voids yuav tshwm nyob rau hauv lub vibrated castable, kom ntseeg tau tias lub castable castable yog tag nrho ua ke nrog tus thawj castable. Nres unloading thaum cov phab ntsa castables yog knotted mus rau qhov siab teev. Nws yuav tsum tau hais tias qhov kev vibration ntawm cov castables tsis pub lub qhov, honeycombs, thiab pitted nto txhua. Qhov saum npoo ntawm cov castables yuav tsum tau vibrated tiaj tus, thiab yuav tsum tsis muaj dej tsub zuj zuj lossis qhov siab tsis sib haum.
