Cov ntsiab lus tseem ceeb rau kev tsim cov khoom siv hnav-resistant thiab hluav taws kub-resistant casting
Kev tsim cov khoom siv hluav taws xob tiv taus thiab hluav taws kub-resistant casting yog tsom rau cov pin vuam, asphalt txheej, dej sib tov, sib sau thiab kho, kev co, kev tiv thaiv demolding, kev ruaj ntseg loj, qhov ntsuas qhov tseeb, thiab lwm yam txuas. Kev tsim kho yog nruj me ntsis ua raws li qhov yuav tsum tau ua ntawm cov khoom tsim khoom thiab lub Hoobkas boiler.
1. Kev tswj kev faib dej
nruj me ntsis tswj cov dej cov ntsiab lus ntawm hnav-resistant thiab refractory castable cov ntaub ntawv, thiab siv ib tug ntau npaum li cas ntim rau nplooj siab faib dej. Ua cov qauv ntsuas ntawm 50PPm ntawm cov dej desalinated nrog pH =6-7.5 thiab cov ntsiab lus chloride ion tsawg dua lossis sib npaug ua ntej kev tsim kho. Tus nqi ntawm cov dej ntxiv rau cov khoom hnav-resistant thiab hluav taws kub-resistant casting yuav tsum tau tswj ntawm 5.5% thiab 6.5%. Ntxiv dej ntau dhau ua rau lub sijhawm solidification, ua rau muaj kev poob qis hauv cov neeg kho tshuab lub zog ntawm hnav-resistant castable. Ntxiv dej me me dhau los ua rau nws nyuaj rau kev co lub castable, thiab qhov kev tsim kho tsis tuaj yeem ua kom tiav, ua rau cov khoom tsis sib xws. Tus nqi ntawm cov dej ntxiv tuaj yeem tswj tau nyob rau hauv ib qho chaw raws li qhov ntsuas kub thiab qhov deb ntawm qhov chaw pouring.
2. Kev tshuaj xyuas ua ntej pwm
Nws yog ib qho tseem ceeb heev kom dhau qhov kev lees paub ua ntej pwm ua, thiab tom qab ntawd nqa cov khoom siv los tsim. Yog tias lub tshuab ua haujlwm tsis raug, nws yuav ua rau rov ua haujlwm ntawm cov khoom siv casting thiab ua haujlwm loj. Ua ntej ua cov pwm, ua tib zoo xyuas seb cov pins, hooks, thiab kev txhawb nqa ua tau raws li qhov yuav tsum tau ua ntawm daim duab kos,
3. Pwm ua tswj
Casting cov khoom tsim yog ib qho tseem ceeb ntawm cov txheej txheem, thiab qhov zoo ntawm cov qauv tsim ncaj qha cuam tshuam qhov zoo ntawm cov khoom siv casting. Lub hom phiaj ntawm kev tswj template yog los tshuaj xyuas nws qhov ruaj khov thiab qhov tseeb qhov tseeb. Lub template yog ruaj khov, uas yog lub ntsiab ntsuas los tiv thaiv pwm los ntawm kev khiav. Thaum pom tias cov khoom siv molding tau khiav, tam sim ntawd tso tseg cov pwm los ntxuav thiab kho qhov kev tsim kho. Kev ua haujlwm ntawm cov khoom siv molding yuav ua rau tsis sib xws ntawm qee cov khoom siv pouring thiab tsis sib xws hauv cov khoom sib sau ntom ntom,
4. Kev sib xyaw thiab kev co tswj
Nws tsis yog yooj yim los sib tov cov khoom ntau dhau txhua zaus. Tom qab lub tov khoom qhuav thiab sib tov sib xyaw, maj mam ntxiv dej. Tus nqi ntawm cov dej yuav tsum tsis txhob muab ntxiv rau ib qho chaw, thiab cov khoom siv pouring yuav tsum tau muab sib xyaw kom zoo. Yog hais tias steel fibers yuav tsum tau ntxiv rau cov khoom siv pouring, lawv yuav tsum tau ntxiv thaum lub sij hawm sib tov dej thiab yuav tsum tsis txhob muab sib tov nyob rau hauv pawg.
5. Reserved expansion sib koom ua ke
Vim qhov tsis sib xws ntawm kev nthuav dav coefficient ntawm castable thiab steel, nws yog ib nrab ntawm cov hlau (cov kab nthuav dav coefficient ntawm hnav-resistant castable yog 5.7 × 10-6mm / mm degree ).
6. Reserved ntsuas point qhov
CFB boilers muaj ntau yam kub thiab siab ntsuas cov ntsiab lus nyob rau hauv lub cub tawg, ncig Circuit Court, slag tshem tawm cov khoom, thiab lwm yam., uas yog sib npaug rau "qhov muag" ntawm boiler. Lub installation ntawm kev ntsuas cov ntsiab lus yog qhov tseeb, cov ntaub ntawv yog qhov tseeb, thiab nws muaj kev cuam tshuam tiag tiag rau kev ua haujlwm hauv lub cub tawg, muab lub hauv paus txhim khu kev qha rau kev hloov kho ntawm cov neeg ua haujlwm combustion.
7. Kev tsim kho ntawm ntau qhov tseem ceeb
Lub conical valve ntawm boiler yog cov khoom tseem ceeb rau slag paug. Tus yuam sij rau kev tsim cov khoom siv yog nyob rau hauv kev tsim cov qauv, ua kom cov ces kaum raug, du nto, thiab qhov ntev, thiab tsis txhob muaj teeb meem hauv boiler slag paug.
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