I-ejenti ye-Carburizing, isetshenziswa embonini yensimbi neyokuphonsa, ukugcwalisa i-carburizing, i-desulfurization nezinye izinto ezisizayo. Okusetshenziswa kakhulu embonini yokuncibilikisa insimbi nensimbi ukwenza ikhabhoni eshiswe ngesikhathi sokuncibilika kwensimbi nensimbi kanye nokwengezwa kwezinto eziqukethe ikhabhoni.
Enqubweni yokuncibilikisa imikhiqizo yensimbi neyensimbi, ngokuvamile ngenxa yesikhathi sokuncibilika, isikhathi sokubamba, isikhathi sokushisa ngokweqile nezinye izici, ukulahlekelwa ukuncibilika kwezakhi ze-carbon ku-iron ewuketshezi kuyanda, okuholela ekwehleni kokuqukethwe kwekhabhoni yensimbi enguketshezi, okuholela okuqukethwe kwekhabhoni yensimbi ewuketshezi akukwazi ukufinyelela inani lethiyori elilindelekile lokucwengisiswa. Ngakho-ke, kuyadingeka ukwengeza imikhiqizo ye-carburizing ukulungisa okuqukethwe kwekhabhoni yensimbi, okuyisithasiselo esibalulekile esiwusizo sokukhiqizwa kwensimbi ephezulu.
I-agent ye-Carburizing ngokusho kokukhiqizwa kwezinto zokusetshenziswa ingahlukaniswa: i-wood carbon, i-carbon yamalahle, i-coke carbon, i-graphite.
1. Ikhabhoni yezinkuni
2. Ikhabhoni yohlobo lwamalahle
* I-general calcining coal carburizer: Iwumkhiqizo womlotha ophansi nesibabule esiphansi sokuwasha i-anthracite esithandweni sokubala ngemva kokubalwa kwezinga lokushisa eliphakeme elingu-1250℃, elikhiqizwa ikakhulukazi e-Ningxia, Inner Mongolia. I-carbon content jikelele ingama-90-93%. Isetshenziswa kakhulu emabhizinisini okwenza insimbi, kanti amanye amabhizinisi okulingisa asetshenziswa ngensimbi empunga. Ngenxa yesakhiwo esihlangene sama-molecule e-carbon, inqubo yokumunca ukushisa ihamba kancane futhi isikhathi side.
* I-Asphalt coking carburizer: umkhiqizo okhiqizwa yi-coal tar hydrogenation ukukhiqiza uwoyela. Kuyikhabhoni ephezulu, isulfure ephansi kanye ne-nitrogen carburizer ephansi ekhishwe kwitiyela. Okuqukethwe kwekhabhoni kuphakathi kuka-96-99.5%, okuqukethwe okuguquguqukayo kuphansi, isakhiwo siminyene, amandla omshini nokumelana nokugqoka kwezinhlayiya kuphakeme kakhulu, i-graphitization elula.
* I-ejenti ye-Metallurgical coke carburizing: ukudubula kwamalahle, ngokuvamile kuvame ukuba ne-coke enkulu, ngaphezu kokuncibilikisa, kodwa futhi kusetshenziselwa ukushaja i-carburizing yensimbi.
3. I-coke (i-petroleum coke) ikhabhoni
* I-coke carburizer ene-calcined: Ingumkhiqizo owenziwe nge-low-sulfur petroleum coke njengempahla eluhlaza, ecutshungulwa esithandweni sokubala ngamadigri angu-1300-1500 ngemva kokukhipha umswakama, ukuguquguquka nokungcola. Ikhabhoni engaguquki ivamise ukuzinza cishe ku-98.5%, kanti isibabule sayo singaphansi kuka-0.5% noma 1%. Ukuminyana kwayo kuhlangene, akulula ukubola, futhi isikhathi sokusebenzisa kwayo siphakathi. Ukukhiqizwa kugxile kakhulu eShandong, Liaoning, Tianjin. Ngenxa yentengo yayo kanye nokuhlinzeka ngezigaba eziningi ze-ejenti ye-carburizing kunenzuzo, imakethe isetshenziswa kabanzi.
* I-Graphitic petroleum coke carburizing agent: i-petroleum coke esithandweni sokuncibilikisa se-graphitic ngemva kwama-degree angu-3000 okukhiqizwa kwezinga lokushisa eliphezulu kwemikhiqizo ye-graphic, ngokumuncwa okusheshayo, i-carbon ephezulu kanye nezinzuzo eziphansi zesibabule. Okuqukethwe kwayo kwekhabhoni kungu-98-99%, inkomba yokuqukethwe kwesibabule ingaphansi kuka-0.05% noma i-0.03%, izindawo ezikhiqizayo zigxile e-Inner Mongolia, iJiangsu, iSichuan njalonjalo. Enye indlela ivela kudoti yokusika i-graphite electrode, ngoba i-electrode yegraphite ngokwayo ngemuva kokwelashwa kwe-graphitization, imfucuza ingasetshenziswa futhi njenge-agent carburizing yezigayo zensimbi.
* I-semi-graphitic petroleum coke carburizer: izinga lokushisa lesithombe alikho phezulu njenge-graphitic carburizer, okuqukethwe kwekhabhoni kuvamise ukuba kukhulu kuno-99.5, okuqukethwe kwesibabule kuphakeme kune-graphitic carburizer, ngaphansi kuka-0.3%.
4. Uhlobo lwe-graphite
* I-ejenti ye-graphite carburizing enjengomhlaba: ukusetshenziswa kwe-graphite efana nomhlaba kunsimbi nokuncibilika kwensimbi noma ukuphonsa i-carburizing, indawo yayo eyinhloko ekhiqizayo e-Hunan, ukusetshenziswa okuqondile kwe-graphite powder efana nomhlaba, ngokuvamile okuqukethwe kwekhabhoni ngo-75-80 %, ingahlanzwa ukuze kwandiswe okuqukethwe kwekhabhoni yomkhiqizo.
* I-ejenti yemvelo ye-graphite carburizing: ikakhulukazi i-flake graphite, okuqukethwe kwekhabhoni ku-65-99%, ukuzinza okuphansi, okuvame ukusetshenziswa ezigayweni zensimbi.
* I-ejenti ehlanganisiwe ye-carburizing: i-graphite powder, i-coke powder, i-petroleum coke nezinye izinto zonyawo, ukwengeza ama-binder ahlukene ngomshini kungacindezelwa ukuze kube nokuma, kwenduku ye-granular. Okuqukethwe kwekhabhoni kuvamise ukuba phakathi kuka-93 no-97%, kanti okuqukethwe kwesibabule akuzinzile ngokwedlulele, ngokuvamile phakathi kuka-0.09 no-0.7.
Isikhathi sokuthumela: Nov-17-2022