Uyilo kunye noLwakhiwo lweSithili seStrip esiQhubelekayo
Isishwankathelo:
Inkqubo ye-galvanizing ye-hot-dip yahlulahlulwe ngamacandelo amabini: i-galvanizing engaphakathi kunye ne-galvanizing yangaphandle yomgca ngokusekelwe kwiindlela ezahlukeneyo zonyango lwangaphambili. Iziko lokuntywila eliqhubekayo lokuntywila okushushu kwintsimbi yesicwecwe sisixhobo sokufudumeza esifudumeza iipleyiti zoqobo zediphu ezidiphu ngexesha lenkqubo yokugalela emgceni. Ngokweenkqubo ezahlukeneyo zemveliso, intsimbi yentsimbi eqhubekayo ishushu-dip galvanizing annealing furnaces inokohlulwa ibe ziindidi ezimbini: ezithe nkqo nezithe tyaba. Isithando somlilo esithe tyaba siyafana nesithando somlilo esithe tye ngokuqhubekayo, esinamacandelo amathathu asisiseko: isithando somlilo esishushu, isithando somlilo sokunciphisa, kunye necandelo lokupholisa. Isithando somlilo esithe nkqo sikwabizwa ngokuba yi-tower tower, ehlanganiswe necandelo lokufudumala, icandelo lokucwina, kunye necandelo lokupholisa.
Isakhiwo se-Lining yentsimbi yentsimbi eqhubekayo yokutshisa i-annealing
Tower-isakhiwo eziko
(1) Icandelo lokufudumeza (i-preheating furnace) lisebenzisa i-liquefied petroleum gas njengesibaso. Izitshisi zegesi zilungiselelwe kunye nokuphakama kodonga lwesithando somlilo. Intsimbi yomcu ifudunyezwa kwicala elichasene negesi yomlilo ebonisa umoya obuthathaka oxidizing. Icandelo lokufudumeza (i-furnace preheating) linesakhiwo esifana ne-horseshoe, kwaye phezulu kunye nendawo yokushisa ephezulu apho i-nozzles yokutshisa ihlelwe khona ibe namaqondo okushisa aphezulu kunye nesantya esiphezulu se-airflow scouring, ngoko udonga lwesithando somlilo luthatha izinto ezilula ezilula, ezifana ne-CCEFIRE izitena ezikhanyayo ze-aluminium ezikhanyayo, izitena ze-silicone ze-thermal insulation, izitena ze-silicate ze-thermal. Icandelo lokufudumeza (i-preheating furnace) indawo yobushushu obuphantsi (intsimbi yokungena kwindawo) inobushushu obuphantsi kunye nesantya esisezantsi sokutyhutyha umoya, ngoko ke iimodyuli ze-CCEWOOL ze-ceramic fiber zihlala zisetyenziswa njengezinto ezifakwa eludongeni.
Imilinganiselo yodonga lwendawo nganye imi ngolu hlobo lulandelayo:
A. Umphezulu wecandelo lokufudumala (i-oven preheating).
Izitena ze-CCEFIRE eziphezulu ze-aluminium lightweight refractory zikhethwa njenge-lining ye-furnace top.
B. Icandelo lokufudumeza (iziko lokufudumala) indawo yobushushu obuphezulu (indawo yokucofa umcu)
I-lining yendawo yobushushu obuphezulu ihlala iqulunqwe ngolu luhlu lulandelayo lwemathiriyeli:
Izitena ze-CCEFIRE eziPhezulu zeAluminiyam eKhaphukhaphu (umphezulu oshushu wodonga lwelayini)
CCEFIRE izitena zokugquma
CCEWOOL calcium silicate boards (umphezulu obandayo welinen eludongeni)
Ummandla weqondo lokushisa eliphantsi usebenzisa i-CCEWOOL iimodyuli ze-ceramic fiber (umthamo wevolumu ye-200Kg / m3) equkethe i-zirconium ye-lining.
(2) Kwicandelo lokucwina (isithando sokunciphisa), ityhubhu yegesi yegesi isetyenziswe njengomthombo wokushisa wesithando sokunciphisa umcu. Iityhubhu ezikhanyayo zegesi zilungelelaniswe kunye nokuphakama kwesithando somlilo. Umcu ubaleka kwaye ufudunyezwe phakathi kwemiqolo emibini yeetyhubhu ezikhanyayo zegesi. Isithando somlilo sibonisa ukunciphisa igesi yomlilo. Ngexesha elifanayo, ukusebenza kwengcinezelo efanelekileyo kuhlala kugcinwa. Ngenxa yokuba ukuxhathisa ubushushu kunye nokugqunyelelwa kwe-thermal ye-CCEWOOL ye-ceramic fiber kuncitshiswe kakhulu phantsi koxinzelelo oluhle kunye nokunciphisa iimeko ze-atmosphere, kuyimfuneko ukuqinisekisa ukuxhathisa okulungileyo komlilo kunye nemiphumo yokushisa ubushushu be-lining yesithando somlilo kunye nokunciphisa ubunzima beziko. Kwakhona, umbane wesithando somlilo kufuneka ulawulwe ngokungqongqo ukuze ugweme ukuhla kwe-slag ukuqinisekisa ukuba umphezulu wepleyiti yasekuqaleni ephekiweyo igudileyo kwaye icocekile. Ukuqwalasela ubushushu obuphezulu becandelo lokunciphisa alidluli i-950 ℃, icandelo lokufunxa (iziko lokunciphisa) iindonga zesithando somlilo zamkele i-high-temp insulation layer structure ye-CCEWOOL ye-ceramic fiber blankets okanye i-cotton sandwiched phakathi kwamaleko amabini ensimbi ekwazi ukumelana nobushushu, oku kuthetha ukuba i-CCEWOOL ye-ceramic fiber blanket okanye i-cotton plate ye-cotton egayiweyo. I-ceramic fiber interlayer yenziwe ngezi mveliso zilandelayo ze-ceramic fiber.
Umaleko wentsimbi enganyangekiyo kubushushu kumphezulu oshushu usebenzisa iingubo ze-CCEWOOL zirconium fiber.
Umaleko ophakathi usebenzisa iingubo ze-CCEWOOL ezicocekileyo ze-ceramic fiber.
Umaleko osecaleni kwepleyiti yentsimbi yomphezulu obandayo usebenzisa umqhaphu we-CCEWOOL we-ceramic fiber eqhelekileyo.
Umphezulu kunye neendonga zecandelo lokucwina (isithando sokunciphisa) yamkela isakhiwo esifanayo nangasentla. Isithando somlilo sigcina igesi yokunciphisa i-oven equkethe i-75% ye-H2 kunye ne-25% ye-N2 ukuze iqonde i-recrystallization annealing ye-strip iron kunye nokunciphisa i-oxide yentsimbi kumphezulu wentsimbi yomtya.
(3) Icandelo lokupholisa: Iityhubhu ezikhanyayo ezipholileyo zomoya zipholile umgca ukusuka kwiqondo lokushisa (700-800 ° C) yecandelo lokucwina (isithando sokunciphisa) kwi-zinc pot galvanizing temperature (460-520 ° C), kwaye icandelo lokupholisa ligcina igesi yokunciphisa isithando somlilo.
I-lining yecandelo lokupholisa ithatha i-tile ye-CCEWOOL yeengubo ze-ceramic fiber ezicocekileyo.
(4) Ukudibanisa amacandelo ecandelo lokufudumala (isithando sokufudumala), icandelo lokuhlamba (isithando sokunciphisa), kunye necandelo lokupholisa, njl.
Oku ngasentla kubonisa ukuba inkqubo yokuqhola intsimbi epholileyo eqengqelekayo phambi kokuba ishushu-dip igalele kufuneka ihambe ngeenkqubo, ezifana nokufudumeza-ukupholisa-ukupholisa, kwaye inkqubo nganye yenziwa kwisakhiwo esahlukileyo kunye namagumbi omlilo azimeleyo, abizwa ngokuba ziziko lokufudumeza, iziko lokunciphisa, kunye negumbi lokupholisa ngokulandelelana, kwaye babumba iyunithi eqhubekayo yokupholisa. iziko). Ngethuba lenkqubo yokucoca, i-strip steel strip ngokuqhubekayo idlula kumagumbi omlilo ozimeleyo akhankanywe ngasentla kwisantya esiphezulu se-240m / min. Ukuze kuthintelwe i-oxidation yentsimbi ye-strip, amacandelo adibanisayo aqaphela ukudibanisa phakathi kwamagumbi azimeleyo, angathinteli kuphela intsimbi ye-strip ukuba ifakwe kwi-oxidized kumalungu amagumbi omlilo ozimeleyo, kodwa iqinisekisa ukutywinwa kunye nokugcinwa kobushushu.
Amacandelo okudibanisa phakathi kwegumbi ngalinye elizimeleyo asebenzisa izinto ze-ceramic fiber njengezinto zokugqoka. Izinto ezithile kunye nezakhiwo zezi zilandelayo:
I-lining ithatha i-CCEWOOL yeemveliso ze-ceramic fiber kunye nesakhiwo esipheleleyo se-fiber yeemodyuli ze-ceramic fiber. Oko kukuthi, umgangatho oshushu we-lining yi-CCEWOOL i-zirconium equlethe iimodyuli zefiber ze-ceramic + ezifakwe iithayile ze-CCEWOOL eziqhelekileyo iingubo ze-ceramic fiber (umphezulu obandayo).
Isithando somlilo esithe tye
Ngokweemfuno ezahlukeneyo zeteknoloji zecandelo ngalinye lesithando somlilo esithe tye, isithando somlilo sinokuhlulwa sibe ngamacandelo amahlanu: icandelo lokufudumala (icandelo le-PH), icandelo lokufudumala elingenayo i-oxidizing (icandelo le-NOF), icandelo lokucwina (icandelo lokunciphisa i-tube ekhanyayo; icandelo le-RTF), icandelo lokupholisa ngokukhawuleza (icandelo le-JFC), kunye necandelo lokulawula (icandelo le-TDS). Ulwakhiwo oluthile lwelayini lulandelayo:
(1) Icandelo lokufudumeza kwangaphambili:
Umphezulu wesithando somlilo kunye neendonga zesithando somlilo zamkela i-furnace edibeneyo efakwe kwiimodyuli ze-CCEWOOL ze-ceramic fiber kunye neengubo ze-ceramic fiber. Umgangatho ophantsi wokushisa usebenzisa i-CCEWOOL 1260 iingubo zefiber ezixinzelelwe kwi-25mm, ngelixa indawo eshushu isebenzisa i-CCEWOOL i-zirconium ene-fiber folded blocks. I-lining kwi-high-temp parts ithatha i-layer ye-CCEWOOL 1260 ye-fiber blanket, kwaye indawo eshushu isebenzisa iimodyuli ze-ceramic fiber.
I-furnace bottom ithatha i-stacking composite lining yezitena zodongwe ezikhanyayo kunye neemodyuli ze-ceramic fiber; iindawo ezinobushushu obuphantsi zithatha isakhiwo esihlanganisiweyo sezitena zodongwe ezikhanyayo kunye ne-zirconium equkethe iimodyuli zefiber ze-ceramic, ngelixa iindawo eziphezulu zokushisa zithatha isakhiwo esidibeneyo sezitena zodongwe ezikhanyayo kunye neemodyuli zefiber ceramic.
(2) Akukho candelo lokufudumeza nge-oxidation:
Umphezulu wesithando somlilo uthatha i-composite ye-ceramic fiber modules kunye neengubo ze-ceramic fiber, kunye ne-back lining ithatha iingubo ze-1260 ze-ceramic fiber.
Iinxalenye eziqhelekileyo zeendonga zesithando somlilo: i-furnace edibeneyo yesakhiwo se-CCEFIRE izitena ezilula ze-alumina ezikhanyayo + i-CCEFIRE izitena zokufakelwa kwe-thermal ezilula (umthamo we-0.8kg / m3) + CCEWOOL 1260 iingubo ze-ceramic fiber + CCEWOOL iibhodi ze-calcium silicate.
Izitshisi zeendonga zesithando somlilo zithatha i-composite ye-furnace structure ye-CCEFIRE lightweight high alumina izitena + i-CCEFIRE izitena zokugquma i-thermal ezilula (ubuninzi be-0.8kg / m3) + 1260 CCEWOOL iingubo ze-ceramic fiber + CCEWOOL iibhodi ze-calcium silicate.
(3) Icandelo lokufunxa:
Umphezulu wesithando somlilo uthatha i-furnace edibeneyo yokwakhiwa kweengubo ze-CCEWOOL ze-ceramic fiberboard.
Ixesha lokuposa: May-10-2021
