Thaum lub sij hawm tsim cov txheej txheem ntawm refractory mortar, nws yog ib qho tseem ceeb kauj ruam. Nws yuav tsum tau ua raws li cov kauj ruam hauv qab no:
1. Kev ntxuav ntawm qhov chaw tsim kho thiab cov khoom siv.
Feem ntau, kev sib xyaw ntawm cov tshuaj khib nyiab feem ntau yog nqa tawm ntawm lub taub hau lub taub hau. Txhawm rau kom ntseeg tau qhov zoo ntawm cov tshuaj khib nyiab refractory, qhov chaw sib xyaw thiab cov khoom siv yuav tsum tau muab ntxuav ua ntej, kom ntseeg tau tias qhov chaw huv si thiab hmoov av -dawb. Thaum sib tov cov tshuaj khib nyiab, cov khoom siv tshwj xeeb yuav tsum tau siv rau kev sib xyaw kom muaj zog, thiab cov khoom sib tov yuav tsum tau ntxuav kom huv si.
2. Cov kauj ruam rau kev sib tov refractory mortar.
Ua ntej, ncuav lub refractory mortar rau hauv lub tov khoom kom qhuav sib tov. Lub sij hawm sib tov yuav tsum tsis pub tsawg tshaj 5 feeb. Tom qab sib tov sib npaug, ntxiv ib qho dej kom tsim nyog. Cov dej zoo yuav tsum yog pH=7.0 - 7.5 dej haus, thiab qhov kub thiab txias yuav tsum zoo dua ntawm 20 - 30 degrees. Yog tias kev tsim kho tau ua nyob rau lub caij ntuj no, cov dej yuav tsum tau ua kom sov kom ncav cuag 30 - 60 degrees. Qhov ntsuas kub ntawm qhov chaw tsim kho yuav tsum tsis txhob qis dua 5 degrees. Tag nrho cov dej ntxiv yuav tsum nruj me ntsis raws li cov chaw tsim khoom tshwj xeeb, thiab cov dej ntau dhau yuav tsum tsis txhob ntxiv rau kev sib xyaw, uas yuav ua rau kom cov porosity ntawm refractory mortar tiv thaiv txheej thiab txo nws qhov ntom, muaj feem cuam tshuam rau qhov zoo. Cov mortar sib xyaw yuav tsum siv li ntawm ib nrab teev. Thaum lub sij hawm sib tov, nws yuav tsum tau muab sau tseg tias: ob hom refractory mortars tsis tuaj yeem tov. Lub refractory mortar uas tau dhau qhov kev sib xyaw ua ke tsis raug tso cai kom muaj cov khoom qhuav qhuav los yog agglomeration. Cov khoom thaiv tom qab teeb tsa tsis tuaj yeem sib xyaw nrog dej siv dua. Thaum lub caij ntuj sov kev tsim kho, refractory mortar yuav tsum tsis txhob raug rau lub hnub nyob rau hauv qhib cua; nws yuav tsum tau muab tso rau hauv qhov chaw txias thiab qhuav.
3. Pouring thiab vibrating ntawm refractory mortar
Tam sim no muaj ob txoj kev rau pouring refractory mortar: ib qho yog kab rov tav pouring txoj kev, qhov twg cov tshuaj tsuag burner yeeb nkab yog horizontally muab tso rau ntawm lub qhov cub taub hau platform rau pouring. Txoj kev tsim kho no yooj yim thiab tsis muaj kev pheej hmoo, tab sis ob qho tib si thiab cov duab ntawm cov txheej txheem tiv thaiv refractory mortar yog qhov nyuaj rau lav; lwm yam yog txoj kev ntsug pouring, qhov twg cov tshuaj tsuag burner yeeb nkab yog lifted thiab dai nyob rau sab ntawm lub kiln lub taub hau platform los ntawm phau ntawv hoist los yog crane, nrog rau pem hauv ntej kawg ntawm cov yeeb nkab tig downward, thiab nws yog poured seem los ntawm seem upward. Ncuav cov khoom sib xyaw refractory mortar rau hauv pwm thiab sib npaug sib npaug rau kev co. Siv tus pas vibration rau txheej - los ntawm - txheej kev co. Lub vibration pas nrig sib nrug yuav tsum tau txiav txim raws li qhov ceev ntawm thauj tog rau nkoj pins, feem ntau txog 150 - 200 hli. Nws yuav tsum tsis txhob vibrated rau lub thauj tog rau nkoj pins; nws yuav tsum tau muab tso rau ntawm no thiab nyob rau ntawd, nchuav thaum vibrating, kom txog rau thaum lub nto yog re- txau. Feem ntau, nws yuav siv li ntawm 20 - 40 vib nas this rau ib qho kev vibration.