Koj puas paub qhov kev tswj ntawm lub refractory seam thiab expansion seam rau refractory castable nyob rau hauv lub viav vias kiln? (1)
Lub expansion seam hais txog qhov sib txawv sab laug raws li kev tsim kho kev cai thaum lub sij hawm tsim kho. Nws lub luag haujlwm yog txhawm rau ua kom lub refractory watering tau ywj siab ncab thaum ntsib qhov kub thiab txias. Yuav ua li cas khaws cia lub expansion seam ntawm hluav taws-resistant castable?
01 shrinkage thiab expansion ntawm castable rwb thaiv tsev cov ntaub ntawv
Thaum thawj cov txheej txheem cua sov ntawm hluav taws kub-resistant castable, ob lub ntim contraction tshwm sim thaum lub cev qhuav dej ntawm 50 degree ~ 200 degree thiab 900 degree ~ 1000 degree. Hauv lwm qhov kub thiab txias, cua sov yuav nthuav tawm lub ncuav. Tom qab thawj cua sov, cov dej feem ntau tsis shrinking.
Txhawm rau tiv thaiv kev ntxhov siab los ntawm kev hloov pauv ntim los ntawm kev puas tsuaj rau cov khoom siv castable, lub hauv ob sab phlu yuav tsum tau muab faib rau hauv ib lub zej zog uas muaj kab pheeb ces kaum tsis tshaj 1.5m. Lub partitioned pouring thiab tawm hauv qhov sib txawv ntawm expansion thiab contraction ntawm ciam teb kab ntawm txhua castable rwb thaiv tsev cheeb tsam.
02 Kev cuam tshuam ntawm kev nthuav dav seam
The size of the gap should ensure that the castable insulation in each community is free to swell, and the appropriate expansion seam can also become a controlling seam. In the high temperature section (>600 degree), qhov dav ntawm qhov nthuav dav yuav tsum tau tswj ntawm 3 ~ 4mm raws li qhov sib txawv ntawm qhov nthuav dav seam. Lub expansion seams thiab tswj cov pob qij txha yog teem rau ntawm lub dav hlau ntawm 200mm los ntawm lub convex ces kaum ntawm lub convex lub kaum sab xis, es tsis txhob ntawm lub tsev qiv ntawv teev nyob rau hauv lub convex ces kaum thiab taw cone. Txoj kev sib tsoo ntawm castable rwb thaiv tsev nyob rau hauv ob sab ntawm kev nthuav dav thiab tswj cov seams yog qhov loj, uas tuaj yeem tsim nyog nce.
03 Qhov dav tswj ntawm qhov nthuav dav seam
Qhov dav ntawm qhov nthuav dav seam muaj feem xyuam rau qhov ntev ntawm kev ua haujlwm kub thiab kev tswj kab. Qhov kub thiab txias yog qhov siab, qhov ntev ntawm kev tswj tau ntev, thiab kev nthuav dav seam tuaj yeem nthuav dav kom tsim nyog. Hauv thaj chaw uas muaj qhov kub thiab txias (<400℃), the equipment shell can be directly used to use watering, and no insulation warranty is required. Under such conditions, inserting 2mm thick cardboard or plastic film every 1.5m can meet the requirements of the expansion space.
