Kodi pali kusiyana kotani pakati njerwa zaumbali ndi njerwa zotsekereza?

Ntchito yaikulu ya njerwa zotenthetsera kutentha ndikuzitentha ndikuchepetsa kutaya kutentha. Njerwa zotsekereza zotentha nthawi zambiri sizikhudza lawi lamoto, pomwe njerwa zomangira zimakhudza motowo. Njerwa zomangira zimagwiritsidwa ntchito makamaka kupirira kuyaka kwa malawi. Nthawi zambiri amagawidwa m’magulu awiri, omwe ndi ma refractories osawoneka bwino komanso mawonekedwe owoneka bwino. Zopanda mawonekedwe zokanira: zomwe zimatchedwanso castable, ndi ufa wosakanikirana wopangidwa ndi mitundu yosiyanasiyana yamagulu kapena ophatikiza ndi imodzi kapena zingapo zomangira. Iyenera kusakanizidwa ndi chakumwa chimodzi kapena zingapo ndikusakaniza mofanana pakugwiritsa ntchito. Ali ndi mphamvu zamadzimadzi. Zipangizo zomangira zowoneka bwino: njerwa zowoneka bwino, zomwe mawonekedwe ake ali ndi malamulo okhazikika, komanso zitha kukonzedwa kwakanthawi malinga ndi zosowa pomanga ndi kudula.

Kusiyana kwakukulu pakati pa njerwa zotsekereza zotentha ndi njerwa zomangira ndi motere:

1. Ntchito yotchinga kutentha

Kutentha kwa njerwa zotenthetsera kumakhala 0.2-0.4 (avareji kutentha 350±25°C) w/mk, pamene matenthedwe njerwa refractory ndi pamwamba 1.0 (avareji kutentha 350±25°C) w/mk, ndi Njerwa yotentha yotentha imatha kupezeka. Ntchito yotchinjiriza kutentha kwa Njerwa ya Refractory ndiyabwino kwambiri kuposa njerwa zomangira.

2. Kukana

The refractoriness wa njerwa kutchinjiriza nthawi zambiri pansi madigiri 1400, pamene refractoriness wa njerwa refractoriness ndi pamwamba 1400 madigiri.

3. Kachulukidwe

Njerwa zotsekereza nthawi zambiri zimakhala zotchingira zopepuka zopepuka, zokhala ndi kachulukidwe ka 0.8-1.0g/cm3 ndipo kachulukidwe ka njerwa zomangira zimakhala pamwamba pa 2.0g/cm3.

Nthawi zambiri, njerwa zomangira zimakhala ndi mphamvu zamakina apamwamba, moyo wautali wautumiki, kukhazikika kwamankhwala abwino, osachita zinthu ndi zinthu komanso kukana kutentha kwambiri. Kutentha kwakukulu kwa kutentha kumatha kufika 1900 ℃. Ndikoyenera makamaka kwa ng’anjo zapamwamba komanso zotsika kutentha, okonzanso, ma hydroconverters, akasinja a desulfurization ndi methanizers mu zomera za feteleza za mankhwala kuti azimwaza mpweya ndi madzi, ndikuthandizira, kuphimba ndi kuteteza zoyambitsa. Itha kugwiritsidwanso ntchito mu masitovu otentha otentha ndi zida zosinthira zotenthetsera mumakampani achitsulo ndi zitsulo.

Njerwa zomangira zimakhala ndi ubwino wokhala ndi kachulukidwe kwambiri, mphamvu zambiri, kukana kuvala, kukana bwino kwa dzimbiri, kutsika kwamphamvu kwa kutentha kwapakati, kutentha kwakukulu, phokoso lochepa, moyo wautali wautumiki, ndi zipangizo zosaipitsa. Ndilo mphero yoyenera makina osiyanasiyana opera.

Njerwa zokanira ndizosiyana kwambiri ndi njerwa zotenthetsera kutentha, ndipo malo ogwiritsira ntchito, kukula ndi ntchito ndizosiyana. Zida zosiyanasiyana zidzagwiritsidwa ntchito m’malo osiyanasiyana. Posankha zipangizo, tiyenera kusankha zinthu refractory zoyenera kuti tigwiritse ntchito malinga ndi mmene zinthu zilili.