Uyilo kunye nokwakhiwa kwe-Continuous Hot-dip Galvanizing Annealing Furnace Lining ye-Strip Steel
Isishwankathelo:
Inkqubo ye-hot-dip galvanizing yahlulwe yangamacandelo amabini: i-in-line galvanizing kunye ne-out-of-line galvanizing ngokusekelwe kwiindlela ezahlukeneyo zangaphambi konyango. I-continuous hot-dip galvanizing annealing furnace ye-strip steel sisixhobo se-annealing esifudumeza iipleyiti zokuqala ze-hot-dip galvanizing ngexesha lenkqubo ye-in-line galvanizing. Ngokweenkqubo ezahlukeneyo zemveliso, ii-strip steel continuous hot-dip galvanizing annealing furnace zinokwahlulwa zibe ziintlobo ezimbini: ezithe nkqo nezithe tye. I-horizontal furnace ifana ne-straight-through continuous annealing furnace, equlathe iindawo ezintathu ezisisiseko: i-preheating furnace, i-reduction furnace, kunye ne-cooling section. I-vertical furnace ikwabizwa ngokuba yi-tower furnace, eyakhiwa licandelo lokufudumeza, icandelo lokuntywila, kunye necandelo lokuphola.
Ulwakhiwo lwe-lining lwee-strip steel continuous annealing furnaces
Izithando zesakhiwo senqaba
(1) Icandelo lokufudumeza (isithando somlilo esifudumezayo) lisebenzisa igesi yepetroliyam enyibilikisiweyo njengepetroli. Izitshisi zegesi zibekwe ecaleni kobude bodonga lwesithando somlilo. Intsimbi yestrip ifudunyezwa kwicala elichaseneyo negesi yesithando somlilo ebonisa umoya obuthathaka wokuxoxisa. Icandelo lokufudumeza (isithando somlilo esifudumezayo) linesakhiwo esifana nesihlangu sehashe, kwaye umphezulu walo kunye nendawo yobushushu obuphezulu apho imibhobho yesithando somlilo ibekwe khona inobushushu obuphezulu kunye nesantya esiphezulu sokucofa ukuhamba komoya, ngoko ke udonga lwesithando somlilo lusebenzisa izinto ezikhaphukhaphu ezirhabaxa, ezifana nezitena ze-CCEFIRE eziphezulu ze-aluminium, izitena ze-thermal insulation, kunye neebhodi ze-calcium silicate. Indawo yobushushu obuphantsi (isithando somlilo esifudumezayo) (indawo yokungena yentsimbi yestrip) inobushushu obuphantsi kunye nesantya sokucofa ukuhamba komoya esiphantsi, ngoko ke iimodyuli zefayibha ze-ceramic ze-CCEWOOL zihlala zisetyenziswa njengezixhobo zodonga.
Ubukhulu becala lodonga lwenxalenye nganye bulandelayo:
A. Phezulu kwecandelo lokufudumeza (isithando sokutshisa kwangaphambili).
Izitena ze-CCEFIRE ezine-aluminium ekhaphukhaphu ekhaphukhaphu zikhethwa njenge-lining ye-furnace ephezulu.
B. Indawo yobushushu obuphezulu kwicandelo lokufudumeza (isithando somlilo esishushu kwangaphambili) (indawo yokucofa imicu)
Uphahla lwendawo enobushushu obuphezulu luhlala luqulunqwe ngala maleko alandelayo ezinto:
Izitena ezikhaphukhaphu ze-CCEFIRE High Aluminium (umphezulu oshushu wodonga)
Izitena zokugquma zeCCEFIRE
Iibhodi ze-CCEWOOL ze-calcium silicate (umphezulu obandayo wodonga)
Indawo eshushu ephantsi isebenzisa iimodyuli zefayibha ze-ceramic ze-CCEWOOL (ubuninzi be-200Kg/m3) eziqulethe i-zirconium yokufakelwa.
(2) Kwicandelo lokuntywila (isithando sokunciphisa), ityhubhu yerhasi ekhazimlayo isetyenziswa njengomthombo wobushushu besithando sokunciphisa umtya. Iityhubhu zerhasi ekhazimlayo zibekwe ecaleni kokuphakama kwesithando. Umtya ubaleka kwaye ufudunyezwa phakathi kwemigca emibini yeetyhubhu zerhasi ekhazimlayo. Isithando sibonisa igesi yerhasi ekhazimlayo. Kwangaxeshanye, ukusebenza koxinzelelo oluhle kuhlala kugcinwa. Ngenxa yokuba ukumelana nobushushu kunye nobushushu be-CCEWOOL ceramic fiber kuncitshiswa kakhulu phantsi koxinzelelo oluhle kunye neemeko zomoya ophantsi, kuyimfuneko ukuqinisekisa ukumelana nomlilo okuhle kunye nemiphumo yobushushu be-furniture lining kunye nokunciphisa ubunzima besithando. Kwakhona, i-furniture lining kufuneka ilawulwe ngokungqongqo ukuze kuthintelwe ukuwa kwe-slag ukuqinisekisa ukuba umphezulu wepleyiti yokuqala ye-galvanized igudile kwaye icocekile. Ukuqwalasela ubushushu obuphezulu becandelo lokunciphisa awudluli kwi-950 ℃, iindonga zesithando sokunciphisa (isithando sokunciphisa) zecandelo lokunciphisa zithatha isakhiwo sobushushu obuphezulu beengubo ze-CCEWOOL ceramic fiber okanye umqhaphu obekwe phakathi kweengqimba ezimbini zentsimbi engatshisi ubushushu, oko kuthetha ukuba i-CCEWOOL ceramic fiber blanket okanye i-cotton layer ifakwe phakathi kweeplati ezimbini zentsimbi. I-interlayer yefayibha yeseramikhi yenziwe ngezi mveliso zilandelayo zefayibha yeseramikhi.
Umaleko weshiti yentsimbi engatshisi ubushushu kumphezulu oshushu usebenzisa iingubo zefayibha ze-CCEWOOL zirconium.
Umaleko ophakathi usebenzisa iingubo zefayibha zeseramikhi ezicocekileyo kakhulu ze-CCEWOOL.
Umaleko osecaleni kwepleyiti yentsimbi ebandayo usebenzisa ikotoni yefayibha yeseramikhi eqhelekileyo ye-CCEWOOL.
Umphezulu kunye neendonga zecandelo lokuntywila (i-reduction furnace) zakha isakhiwo esifanayo nesingasentla. I-furnace igcina igesi ye-furnace enciphisiweyo equlethe i-75% H2 kunye ne-25% N2 ukuze kufezekiswe ukuphinda kusetyenziswe i-recrystallization annealing ye-strip steel kunye nokunciphisa i-iron oxide kumphezulu we-strip steel.
(3) Icandelo lokuphola: Iityhubhu ezikhazimlayo ezipholisiweyo ngomoya zipholisa umcu ukusuka kubushushu besithando (700-800°C) secandelo lokuntywila (isithando sokunciphisa) ukuya kubushushu be-zinc pot galvanizing (460-520°C), kwaye icandelo lokuphola ligcina igesi yesithando sokunciphisa.
Umgca wecandelo lokupholisa usebenzisa ulwakhiwo olunethayile lweengubo zefayibha zeseramikhi ezicocekileyo kakhulu ze-CCEWOOL.
(4) Amacandelo adibanisayo ecandelo lokufudumeza (isithando sokutshisa kwangaphambili), icandelo lokuntywila (isithando sokunciphisa), kunye necandelo lokupholisa, njl.
Oku kungasentla kubonisa ukuba inkqubo yokuqhoboshela intsimbi eqhotsiweyo ebandayo ngaphambi kokuba i-hot-dip galvanizing kufuneka idlule kwiinkqubo, ezifana nokufunxa-ukupholisa, kwaye inkqubo nganye yenziwa kwisakhiwo esahlukileyo kunye namagumbi esitovu azimeleyo, abizwa ngokuba yi-preheating furnace, i-reduction furnace, kunye negumbi lokupholisa ngokwahlukeneyo, kwaye zenza iyunithi yokuqhoboshela i-strip eqhubekayo (okanye i-annealing furnace). Ngexesha lenkqubo yokuqhoboshela, intsimbi yesitovu idlula rhoqo kumagumbi esitovu azimeleyo akhankanyiweyo apha ngasentla ngesantya esiphezulu se-240m/min. Ukuze kuthintelwe ukuqhoboshela kwentsimbi yesitovu, amacandelo adibanisayo aqonda unxibelelwano phakathi kwamagumbi azimeleyo, olungathinteli kuphela intsimbi yesitovu ukuba iqhoboshelwe kwiindawo ezidibeneyo zegumbi lesitovu esizimeleyo, kodwa luqinisekisa nokutywinwa kunye nokugcinwa kobushushu.
Iindawo ezidibanisayo phakathi kwegumbi ngalinye elizimeleyo zisebenzisa izinto zefayibha yeseramikhi njengezinto zokwambathisa. Izinto kunye nezakhiwo ezithile zezi zilandelayo:
I-lining yamkela iimveliso zefayibha yeseramikhi ye-CCEWOOL kunye nesakhiwo sefayibha epheleleyo yeemodyuli zefayibha yeseramikhi ezifakwe iithayile. Oko kukuthi, umphezulu oshushu we-lining yi-CCEWOOL zirconium-containing ceramic fiber modules + iingubo zefayibha yeseramikhi eqhelekileyo ye-CCEWOOL ezifakwe iithayile (umphezulu obandayo).
Isithando somlilo esithe tye
Ngokweemfuno ezahlukeneyo zobuchwepheshe zenxalenye nganye yesithando esithe tye, isithando singahlulwa sibe ngamacandelo amahlanu: icandelo lokufudumeza kwangaphambili (icandelo le-PH), icandelo lokufudumeza elingangxengiyo (icandelo le-NOF), icandelo lokuntywila (icandelo lokunciphisa ubushushu betyhubhu ekhanyayo; icandelo le-RTF), icandelo lokuphola ngokukhawuleza (icandelo le-JFC), kunye necandelo lokulawula (icandelo le-TDS). Izakhiwo ezithile ze-lining zezi zilandelayo:
(1) Icandelo lokufudumeza kwangaphambili:
Ingaphezulu yesithando somlilo kunye neendonga zesithando somlilo zamkela ulwelo lwesithando somlilo oludityanisiweyo oluneemodyuli zefayibha ye-ceramic ye-CCEWOOL kunye neengubo zefayibha ye-ceramic. Ulwelo lwesithando somlilo oluphantsi lusebenzisa umaleko weengubo zefayibha ze-CCEWOOL 1260 ezicinezelwe ukuya kwi-25mm, ngelixa umphezulu oshushu usebenzisa iibhloko zefayibha ezigoqiweyo ezine-CCEWOOL zirconium. Ulwelo olukwiindawo ezishushu kakhulu lusebenzisa umaleko wengubo yefayibha ye-CCEWOOL 1260, kwaye umphezulu oshushu usebenzisa iimodyuli zefayibha ye-ceramic.
Isiseko sesithando somlilo samkela ulwelo oludibeneyo oluhlanganisiweyo lwezitena zodongwe olukhanyayo kunye neemodyuli zefayibha yeseramikhi; iindawo ezinobushushu obuphantsi zamkela ulwakhiwo oludibeneyo lwezitena zodongwe olukhanyayo kunye neemodyuli zefayibha yeseramikhi ezinezirconium, ngelixa iindawo ezinobushushu obuphezulu zamkela ulwakhiwo oludibeneyo lwezitena zodongwe olukhanyayo kunye neemodyuli zefayibha yeseramikhi.
(2) Akukho candelo lokufudumeza i-oxidation:
Umphezulu wesithando somlilo wamkela ulwakhiwo oludibeneyo lweemodyuli zefayibha yeseramikhi kunye neengubo zefayibha yeseramikhi, kwaye ulwelo olungasemva lwamkela iingubo zefayibha yeseramikhi eziyi-1260.
Iindawo eziqhelekileyo zeendonga zesithando somlilo: isakhiwo sodonga lwesithando somlilo esidityanisiweyo sezitena ze-CCEFIRE ezilula ze-alumina eziphezulu + izitena ze-CCEFIRE ezilula ze-thermal insulation (ubuninzi bomthamo yi-0.8kg/m3) + iingubo ze-CCEWOOL 1260 zefayibha yeseramikhi + iibhodi ze-CCEWOOL ze-calcium silicate.
Izitshisi zeendonga zesithando zenza ulwakhiwo lwe-lining yesithando oludityanisiweyo lwezitena ze-alumina ezikhaphukhaphu ze-CCEFIRE + izitena ze-insulation ezikhaphukhaphu ze-CCEFIRE (ubuninzi be-0.8kg/m3) + iingubo zefayibha ze-ceramic ze-CCEWOOL eziyi-1260 + iibhodi ze-calcium silicate ze-CCEWOOL.
(3) Icandelo lokuntywila:
Umphezulu wesithando usebenzisa ulwakhiwo lwe-inliner yesithando oludityanisiweyo lweengubo ze-fiberboard ze-ceramic ze-CCEWOOL.
Ixesha lokuthumela: Meyi-10-2021
