Boiler grate rollers ndi grate idlers/mawilo ndi zina mwa zigawo zikuluzikulu za boiler.
Amagwiritsidwa ntchito makamaka pama boilers a unyolo, omwe ali ndi ntchito zothandizira kulemera kwa kabati, kutsogolera njira yoyendetsera kabati, ndi kuchepetsa kukangana panthawi ya kabati. Nthawi zambiri amapezeka m'makina opangira malasha-oyaka ndi ma boiler a biomass. Zigawo zotere nthawi zambiri zimaponyedwa kuchokera ku chitsulo choponyedwa kapena chitsulo chosungunuka ndipo zimafunika kukhala ndi mphamvu yolimbana ndi kutentha komanso kukana kuvala.
Kufotokozera Zamalonda
Ma roller a grate idler ndiye gawo lalikulu la boiler ya chain grate, yomwe imagwiritsidwa ntchito kuthandizira ndikuyendetsa mbale kuti zitsimikizire kuyaka kofanana kwamafuta. Kugwiritsa ntchito kwawo komanso kusinthasintha kumasiyanasiyana malinga ndi mtundu wa boiler komanso mawonekedwe amafuta.
M'maboiler a malasha-, zodzigudubuza zimayenera kupirira kutentha kwambiri komanso kutha chifukwa cha phulusa la malasha. Zomwe zimagwiritsidwa ntchito nthawi zambiri ndi kutentha-chitsulo chosamva kutentha (monga HT250, HT300) kapena kutentha-chitsulo chosamva kutentha (monga ZG40Cr25Ni20Si2).
Mu boiler yamafuta amafuta, zodzigudubuza zimayenera kupirira-mipweya yowononga kutentha kwambiri yopangidwa ndi kuyaka kwa ma pellets a biomass. Kutentha-zodzigudubuza zachitsulo zosagwira ntchito (monga zopangidwa ndi zinthu za 2535Nb) ndizoyenera kwambiri chifukwa chosachita dzimbiri komanso kutentha kwambiri.
Potengera kusinthasintha kwa magwiridwe antchito, osasamala amayenera kupangidwa ndi zinthu zomwe zili zoyenera kutentha kwamoto, phulusa lamafuta, komanso kuwononga.
Ma grate idlers amapangidwa makamaka ndi zinthu ziwiri: kutentha-chitsulo chosagwira ntchito komanso kutentha-chitsulo chosamva kutentha.
Kutentha-chitsulo chosamva kutentha kwachitsulo monga HT250 ndi HT300 chili ndi mtengo wotsikirapo, wosamva kuvala bwino, koma ndi chosalimba ndipo ndi choyenera kugwiritsa ntchito kutentha kwapakati ndi kochepa.
Zitsulo zosagwira kutentha-zosamva kutentha monga ZG40Cr25Ni20Si2 (2520), 2535Nb, ndi 3Cr24Ni7SiN zili ndi mphamvu zolimbana ndi kutentha komanso kusachita dzimbiri, ndipo ndizoyenera{10}}kutentha kwambiri ndi malo ovuta.
Zowonetsera Zamalonda
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