Njerwa zopumira zopumira

Gulu: Slit Breathable Brick Core

Njerwa zozungulira zomwe zimatha kuwoloka Njerwa zoduliramo mpweya zomwe zimatha kulowerera zimagwiritsidwa ntchito kambirimbiri njerwa zomata. Malinga ndi momwe amagwiritsidwira ntchito pamalopo, kuphatikiza mtundu wachitsulo woyengedwa, njira yoyenga, ladle, kutentha, kuthamanga kwa hydrostatic, ndi zina zambiri. nthawi yogwiritsira ntchito yawonjezeka, ndipo chitetezo chimakhala chokhazikika. Poyerekeza ndi momwe njerwa zakunja zimawonongeka, kulowetsa mpweya ndi moyo wa njerwa ndizabwino kuposa zomwe zimapangidwa ndi akunja zakunja, zomwe zimakwaniritsa zofunikira za magwiridwe antchito oyenga makwerero.

ntchito;

1. Kukaniza kwa slag

Pofuna kukonza slag kukana ndi madzi kukalowa kwakumalako kukana, Cr2O3 kapena gawo la chromium corundum nthawi zambiri limawonjezeredwa ku corundum spinel njerwa zopumira pompopompo. Cr2O3 ndi-Al2O3 ali ndi mawonekedwe amtundu umodzi. Cr2O3 sikuti imangothandiza kuti slag asagwiritse ntchito zinthuzo, komanso imawonjezera mbali yonyowetsa pakati pazinthuzo ndi chitsulo chosungunuka, ndipo imathandizira kwambiri kutseka kwa pores za njerwa yopumira chifukwa cholowera pazitsulo zosungunuka.

Kugwiritsa ntchito ufa wabwino wa Cr2O3 ndi Al2O3 kutentha kwambiri kuti apange yankho lolimba la aluminium-chromium ndi gawo lomwe lili ndi chromium, gawo lamadzi lomwe limapangidwa likakumana ndi slag munjira yosungunuka yachitsulo imakhala ndi mamasukidwe akayendedwe, potero kuteteza slag mu chitsulo chosungunuka kuti isakhudzidwe ndi dzimbiri la njerwa lopumira; Nthawi yomweyo, imatha kuyamwa chitsulo chosakaniza ndi magnesium oxide mu slag, ndikupanga spinel wandiweyani pantchito yogwirira njerwa, yomwe imathandizira kukana kwa slag kwa njerwa zopumira.

Komabe, mutatha kuwonjezera Cr2O3 pazinthuzo, kuwotcha kapena kutentha kwambiri, Cr3 + imakhala ndi oxidized ku Cr6 +, yomwe ndi poizoni ndipo imadetsa chilengedwe. Chifukwa chake, pakusunga mphamvu ndi kuteteza zachilengedwe, kugwiritsa ntchito Cr2O3 kuyenera kupewedwa momwe zingathere, ndipo posintha zinthu zopangira, magwiridwe antchito osawonjezera Cr2O3 atha kufika pamlingo wowonjezera Cr2O3.

2. Matenthedwe kukana

Njira yayikulu yowonongera njerwa zowononga mpweya ndikuwonongeka kwamatenthedwe. Ndi kuwonjezeka kopitilira kwa kutentha kogogoda, pali kusiyana kwakukulu kwakutentha pakati pa ntchito yogwira ndi yopumira pamalo ogwirira ntchito njerwa zopumira, zomwe zimafunikira kuti zinthuzo zizikhala ndi kutentha kwakukulu. Gawo la spinel limayambitsidwa, ndipo matenthedwe oyimitsa njerwa zomwe zimatha kupumira mpweya zikhala bwino.

The okusayidi kapena sanali okusayidi anawonjezera mu njerwa mpweya amapanga njira olimba njira ndi akaphatikiza pa kutentha kwambiri, kumawonjezera mphamvu kutentha kwambiri njerwa, bwino permeability a njerwa, ndi kukana kukokoloka kwa njerwa mpweya ndi slag wosungunuka mu ladle. Pambuyo pa kutentha kwakukulu kwa kutentha kwa njerwa yomwe imatha kupumira, magwiridwe ake amasinthidwa kuti akwaniritse zofunikira zake

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