Njira yopangira recarburizer ndi zopangira

Recarburizer ndi chinthu cha carbonaceous.Ma Carburizer amawonjezeredwa panthawi yosungunula kuti awonjezere kaboni wotayika pakusungunuka kwachitsulo.Tikudziwa kuti pali mitundu yambiri ya ma recarburizers, monga mafuta a coke recarburizers, opangira ma graphite recarburizer, ndi zina zotere, kotero kuti zopangira zomwe zimafunikira kuti zibwezeretsenso ndizosiyana, ndiye ndi zinthu ziti zopangiranso?Njira ya recarburizers ndi chiyani?Xiaobian akuwuzani za zopangira ndi njira zomwe zimafunikira pa recarburizer.

Zipangizo zofunika kwa recarburizers
Pali mitundu yambiri ya zida zopangira ma recarburizers, kuphatikiza makala, kaboni wopangidwa ndi malasha, coke, graphite, coke yaiwisi ya petroleum, ndi zina zambiri, zomwe zili ndi magulu ang'onoang'ono ambiri komanso magulu osiyanasiyana.

Pakadali pano, ambiri mwaotulutsanso pamsika, kuphatikiza ma electrode a graphite, graphitized petroleum coke, etc., amagwiritsa ntchito coke yaiwisi yamafuta.Mafuta a petroleum coke amapezeka popaka mafuta otsalira ndi mafuta a petroleum omwe amapezedwa ndi distillation ya mafuta akuda pansi pa mphamvu ya mlengalenga kapena vacuum.Mafuta a petroleum coke yaiwisi ali ndi zonyansa zambiri ndipo sangathe kugwiritsidwa ntchito mwachindunji ngati chobwezeretsanso.Iyenera kukhala calcined kapena graphitized.Ma recarburizer apamwamba kwambiri nthawi zambiri amafunikira graphitization.Pansi pa kutentha kwambiri, makonzedwe a maatomu a carbon amakhala mu mawonekedwe a microscopic a graphite, motero amatchedwa graphitization.Graphitization imatha kuchepetsa zonyansa mu recarburizer, kuonjezera kaboni wa recarburizer, ndikuchepetsa sulfure.Recarburizers amagwiritsidwa ntchito poponya, zomwe zimatha kuonjezera kuchuluka kwa zitsulo zowonongeka, kuchepetsa kuchuluka kwa chitsulo cha nkhumba kapena kusunga chitsulo cha nkhumba.

Njira ya Carburizer
Chifukwa cha kuchuluka kwa zida zopangira ma recarburizer, njira zake ndi zosiyana, koma pali zitatu izi:

1. Kuwerengera
Zipangizo za carbonaceous calcined pa kutentha kwakukulu kwa 1200-1500 ° C popanda mpweya.Calcination imayambitsa kusintha kosiyanasiyana kwa kapangidwe kake ndi physicochemical katundu wamitundu yosiyanasiyana yopangira.Ndi njira yochizira kutentha kwa recarburizer.Anthracite ndi petroleum coke zili ndi zinthu zina zosakhazikika ndipo zimafunikira kuwerengetsa.Komabe, mafuta a coke ndi pitch coke akasakanizidwa ndi kugwiritsidwa ntchito asanamwedwe, ayenera kutumizidwa ku calciner kuti amwetsedwe pamodzi ndi petroleum coke.

2. Kuwotcha
Kuwotcha ndi njira yochizira kutentha komwe chakudya chosaphika choponderezedwa chimatenthedwa pamlingo wina wotenthetsera m'malo otetezera mung'anjo yamoto pansi pazikhalidwe zodzipatula.
Cholinga cha kuwotcha ndikuchotsa zovunda.Nthawi zambiri, pafupifupi mitundu 10 ya ma volatiles imatulutsidwa pambuyo pakuwotcha.Chifukwa chake, zokolola zakukazinga nthawi zambiri zimakhala 90;binder ndi coked, ndi mankhwala wokazinga malinga ndi zinthu zina ndondomeko, kotero kuti binder ndi coked, ndi coke maukonde aumbike pakati pa zopangira particles, amene mwamphamvu zikugwirizana zipangizo zonse zopangira ndi miyeso yosiyanasiyana tinthu pamodzi.Pangani zinthu # # kukhala ndi zinthu zina zakuthupi komanso zamankhwala.Pazifukwa zomwezo, kuchuluka kwa kuphika, kumakhala bwino;pa nkhani ya geometry yokhazikika, mankhwalawo adzafewetsa ndipo binder idzasuntha panthawi yophika.Pamene kutentha kumawonjezeka, makina ophika amapangidwa, omwe amaumitsa mankhwalawa.Choncho, mawonekedwe ake sasintha pamene kutentha kumawonjezeka.

3. Extrusion
Cholinga cha extrusion ndondomeko ndi kupanga zopangira kudutsa nkhungu ya mawonekedwe ena pansi pa kupsyinjika, ndi kukhala billet ndi mawonekedwe enaake ndi kukula pambuyo poumbika ndi pulasitiki opunduka.The extrusion akamaumba ndondomeko makamaka pulasitiki mapindikidwe ndondomeko phala.Njira ya extrusion imachitika mu chipinda chakuthupi ndi mphuno yopindika.Zinthu zotentha m'chipindamo zimakankhidwa ndi plunger yayikulu kumbuyo.Kukakamizidwa mosalekeza kuchotsedwa kwa gasi kuzinthu zopangira, kuphatikizika kosalekeza kwa zopangira, ndikuyenda munthawi yomweyo kwazinthu zopangira kupita patsogolo.Pamene zopangira zimayenda mu cylindrical mbali ya zinthu chipinda, zopangira akhoza kuonedwa ngati khola otaya, ndipo aliyense tinthu wosanjikiza kwenikweni chimayenda mu kufanana.Zopangira zikalowa mumphuno ya extrusion ndipo zimakhala ndi mawonekedwe a arc, zopangira zomwe zili pafupi ndi khoma la nozzle zimakumana ndi kukana kwakukulu zikamapita patsogolo, ndipo gawo lazinthu limayamba kupindika.The zopangira ali osiyana patsogolo liwiro, ndi mkati zopangira patsogolo.Choncho, kachulukidwe wa mankhwala pamodzi ndi njira yozungulira si yunifolomu, potero kutulutsa kupsyinjika kwamkati komwe kumayambitsidwa ndi mitundu yosiyanasiyana yothamanga ya zigawo zamkati ndi zakunja mu chipika chotuluka.Pambuyo phala kulowa molunjika mapindikidwe gawo, izo extruded ndi kupanga.
Njira yotulutsira imayenera kuwonjezera zomangira zochulukirapo kuti ziwumbidwe, ndipo zomwe zili mu kaboni nthawi zambiri sizimakwaniritsa zofunikira za zopangiranso zapamwamba kwambiri.Wothinikizidwa graphite ufa, chifukwa ndi chipika olimba, alibe dongosolo porous, kotero mayamwidwe liwiro ndi mayamwidwe mlingo si bwino monga calcined ndi calcined recarburizers.