Wannan takarda ta gabatar da sabon fasahar konewar tanderun masana'antu, kuma fasahar tana kawo gagarumin ci gaba ga kiyaye makamashi da rage fitar da iska.
An raba tanderun masana'antu zuwa simintin narkewa da tanderun jiyya iri biyu.Ana amfani da na farko don tacewa da narke simintin gyare-gyare, yayin da ake amfani da na biyun don dumama da zafin maganin billet kafin sarrafawa.Yawancin man da ake amfani da shi don dumama karfe gas ne ko iskar gas, wanda dole ne a shayar da shi cikin iska ta hanyar busa iska don tallafawa konewa.Kamar yadda muka sani, iskar tana kunshe da sinadarin nitrogen, wanda ya kai kashi 78%, da kuma iskar oxygen, wanda ya kai kashi 21% (kuma kusan kashi daya cikin dari na iskar gas mai daraja).Nitrogen, wanda ba shi da tasirin konewa, ya zama ja, wanda ba kawai jinkirta saurin dumama ba, har ma yana kawar da zafi a cikin iskar gas, yana kara matsalolin muhalli.Bayan shekaru na bincike da ci gaba, Ƙungiyar Linde ta Jamus ta ƙirƙira fasahar konewar iskar oxygen mai ƙarancin zafin jiki (LTOF), wanda ya dace da narkewa, narkewar simintin gyare-gyare da kuma kula da zafi na karafa marasa ƙarfe kamar ƙarfe, jan ƙarfe da aluminum.
- Gabatar da ƙananan zafin jiki mai tsabtaccen fasahar konewar oxygen (LTOF) a cikin tanderun masana'antu
Babban tasirin fasahar konewar iskar oxygen mai tsabta sune:
(1) babu nitrogen da ke shiga cikin tanderun;
(2) babu nitrogen da ke cire zafi a cikin iskar hayaƙi;
(3) haɓaka haɓakar canjin zafi na radiation;
(4) iskar gas ya daɗe a cikin tanderun, don inganta tasirin canjin zafi;
(5) tun da babu nitrogen a cikin konewa mai goyan bayan iskar gas, yana da ɗan tasiri akan kare muhalli lokacin fitarwa;
(6) tasirin goyan bayan konewa na iskar oxygen mai tsafta ya kai 77%, yayin da adadin goyan bayan konewar yanayi shine kawai 23%.
- Fa'idodin ƙananan zafin jiki tsarkakakken ƙwayar iskar oxygen (LTOF) a cikin tanderun masana'antu
Manufar ci gaban fasaha mai ƙarancin zafin jiki mai tsabta mai tsabta (LTOF) shine haɓaka ƙarfin narkewa da ingancin mai haskakawa.Mai ƙona LTOF na musamman yana ba da damar iskar hayaƙi daga tanderun da aka shigar don shigar da yankin haɗakar mai ƙonawa, yana diluting iskar oxygen a gaban mai ƙonewa kuma yana rage yawan ƙimar konewa, yana haifar da ƙarancin zafin wuta wanda ke kusa da harshen wuta. na konewar iskar man fetur.Wannan LTOF tsarkin iskar oxygen konewa halaye sa zafin jiki a cikin tanderu karin uniform, kawar da gida zafi spots, rage man fetur amfani, rage hayaki gas hayaki da inganta karfe dawo da kudi.Kwatanta tsakanin konewar iska da ƙarancin zafi mai tsaftataccen iskar oxygen, daga cikinsu, konewar iska, ƙarfin ƙonawa shine 311kW, sanyaya ruwa shine 231kW, matsakaicin matsakaicin da aka auna a cikin narkakkar aluminum shine 1131 ℃, kuma saurin zafi shine 79kW/m2.Low-zazzabi. konewar iskar oxygen mai tsabta, wutar lantarki 257kW, sanyaya ruwa 66kW, ci gaba da auna aluminum a cikin matsakaicin darajar 1152 ℃, saurin zafi 79kW / m2.
- Siffar harshen wuta na LTOF mai ƙarancin zafin jiki tsantsa mai ƙona iskar oxygen a cikitanderun masana'antu, Konewar wuta kyauta shine mafi inganci
(1) na iya rage fitar da NOx da kashi 90%;
(2) idan aka kwatanta da sabuntawar konewar iskar oxygen na yau da kullun, konewa mara wuta shine mafi ƙarancin kulawa ga zubar iska, kuma babu wani canji mai mahimmanci a samar da NOx.Matsakaicin amfani da makamashi da ma'aunin zafi na LTOF tsantsar fasahar konewar iskar oxygen a cikin 28t aluminum gami mai narkewa.
Lokacin aikawa: Oktoba-30-2018