Thaum tshav kub kub exchangers yog siv rau blast furnace flue gas rov qab los muab cua sov rau cov nroj tsuag cheeb tsam.
Lub hauv paus tseem ceeb ntawm cov khoom siv hluav taws xob rov qab thiab cua sov los ntawm lub tshuab hluav taws xob hluav taws xob hluav taws xob yog txhawm rau ntes cov hluav taws kub zoo thiab latent hauv cov roj flue los ntawm kev tshawb fawb thiab thev naus laus zis. Tom qab kev ua kom huv si, kev sib pauv cua sov, thiab kev khaws cia, cov khoom siv hluav taws xob pov tseg tau hloov mus rau hauv qhov chaw cua sov ruaj khov, ua tiav lub zog voj voog ntawm "tig pov tseg rau hauv cov khoom muaj nqis". Tsis zoo li cov thee ib txwm siv- raug rho tawm haujlwm thiab roj- cov qauv hluav taws xob hluav taws xob, qhov kev qhia no tsom mus rau cov khoom siv hluav taws xob hluav taws xob raws li nws qhov tseem ceeb, tsis tas yuav tsum tau siv cov roj fossil ntxiv. Nws txo cov khoom pov tseg hluav taws xob thiab cov pa phem, ua kom tau raws li cov kev xav tau ntawm kev lag luam ntsuab nyob rau hauv lub hom phiaj "dual carbon".
Kev ua haujlwm tau zoo ntawm lub tshuab hluav taws xob hluav taws xob flue roj cua sov rov qab cua sov system cia siab rau kev ua tiav cov txheej txheem. Nws cov txheej txheem tseem ceeb tuaj yeem muab faib ua tsib qhov txuas loj: flue gas collection, purification treatment, khib nyiab pauv, kev tswj cov cua sov, thiab kev thauj mus los. Txhua qhov txuas ua haujlwm ua ke los xyuas kom meej qhov ua tau zoo, ruaj khov, thiab kev nyab xeeb ntawm cov khoom siv hluav taws xob rov qab. Nyob rau hauv cov txheej txheem sau cov roj flue, lub kaw lus qhia txog qhov kub siab - cov pa roj flue (feem ntau yog 150-300 degree) tawm ntawm lub tshuab hluav taws xob hluav taws xob tso rau hauv cov khoom siv hluav taws xob pov tseg los ntawm cov pa roj flue induced cua ntsawj ntshab. Lub collector feem ntau siv finned tube heat exchangers, uas ua rau kom qhov chaw sib pauv cua sov thiab txhim kho cov khoom siv hluav taws xob pov tseg nrog lawv cov qauv finned tuab. Nyob rau tib lub sijhawm, cov ntsuas kub ntsuas tau nruab los saib xyuas cov roj flue hauv lub sijhawm tiag tiag, muab cov ntaub ntawv txhawb nqa rau kev tswj hwm tom ntej.
Vim tias muaj cov hmoov av ntau (xws li Fe ₂ O3, SiO ₂, thiab lwm yam), cov pa phem (xws li SO ₂, NO ₓ), thiab noo noo nyob rau hauv qhov cub tawg flue gas, yog tias nws ncaj qha nkag mus rau hauv lub tshav kub pauv, nws yuav ua rau cov kav dej thaiv, corrosion, thiab txo cov khoom siv lub neej. Yog li ntawd, kev kho kom huv huv yog qhov tseem ceeb heev. Ib qho kev ua tiav ntawm cov khoom siv hluav taws xob pov tseg feem ntau suav nrog cov khoom siv hluav taws xob pom, cov pa roj carbon adsorption units, thiab hydrophobic membrane dehydration units txuas nrog hauv series. Ceramic filtration unit tuaj yeem tshem tawm cov plua plav tawm ntawm cov pa roj, cov pa roj carbon activated adsorption adsorbs cov pa phem, thiab chav dej hydrophobic membrane dehydration unit cais cov dej los ntawm cov pa roj. Tom qab peb zaug purification, cov roj flue tuaj yeem zam kev puas tsuaj rau cov khoom siv tom ntej, txuas lub neej ua haujlwm ntawm lub cev, thiab ua kom muaj kev nyab xeeb ntawm cov cua sov.
Kev sib pauv hluav taws xob khib nyiab yog qhov txuas tseem ceeb ntawm tag nrho cov kab ke, thiab nws cov ntsiab lus yog nyob ib puag ncig "kev ntes cov khib nyiab pov tseg thiab hloov cov cua sov kom zoo", ua raws li peb txoj cai hloov hluav taws xob tseem ceeb ntawm kev siv hluav taws xob, hluav taws xob convection, thiab hluav taws xob hluav taws xob. Txoj kev hloov pauv hluav taws xob tam sim no siv cov phab ntsa rau phab ntsa hluav taws xob hloov pauv, uas hloov cov cua sov hauv cov pa roj mus rau cov dej ntws los ntawm cov khoom siv hluav taws xob, ua tiav lub zog hloov pauv ntawm "cov pa roj cua txias thiab dej cua sov" - siab - kub flue gas ntws los ntawm lub plhaub sab ntawm lub tshav kub exchanger, thiab cov dej ntws ntws mus rau qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv. (qhov nruab nrab kub qhov sib txawv ntawm 40-80 degree), ua kom muaj txiaj ntsig zoo tshaj plaws. Piv txwv li, qhov qis- kub flue roj cua kub exchanger siv cov pa roj carbon tsawg tsawg raws li cov khoom siv thermal conductivity kav tsis tsuas yog muaj corrosion kuj thiab txo tsis kam, tab sis kuj muaj txiaj ntsig zoo rov qab qis kub flue gas khib nyiab kub nyob ib ncig ntawm 145℃, tag nrho tapping rau hauv lub peev xwm ntawm khib nyiab cua sov.
Xav txog tias qhov kub ntawm lub tshuab hluav taws xob hluav taws xob hluav taws xob cuam tshuam los ntawm cov khoom xws li smelting load thiab raw khoom muaj pes tsawg leeg, qhov hloov pauv amplitude yog qhov loj, uas tuaj yeem yooj yim ua rau tsis ruaj khov ntawm cov cua sov nruab nrab. Yog li ntawd, qhov kev sib txuas ntawm cov khoom siv hluav taws xob tau dhau los ua tus yuam sij rau kev ua kom cov cua sov ruaj khov. Daim ntawv thov ntawm nruab nrab kub theem hloov thermal cia khoom siv tau zoo daws qhov teeb meem no. Cov cuab yeej siv cov ntaub ntawv hloov pauv xws li aluminium silicon alloy ua cov tub ntxhais, ua rau sab hauv ntawm lub tank cia thermal, thiab embeds hlau fins los txhim kho cov cua sov. Los ntawm kev siv lub siab - ceev ceev thermal cia cov yam ntxwv ntawm theem hloov cov ntaub ntawv, nws ua tiav qhov ruaj khov cia thiab ntawm - thov tso tawm cov cua sov pov tseg. Thaum cov hluav taws kub seem ntawm cov roj flue txaus, cov khoom siv hloov pauv tau nqus cua sov thiab ua kom khov; Thaum tsis muaj hluav taws kub tsis txaus lossis qhov xav tau cua sov ntxiv, cov ntaub ntawv hloov pauv theem tso tawm cov cua sov kom ruaj khov hauv cov cua sov network. Tsis tas li ntawd, lub ntse tswj module saib xyuas cov tsis xws li flue gas kub, circulating dej txaus tus nqi, thiab theem hloov cov ntaub ntawv kub nyob rau hauv lub sij hawm ntawm lub PLC maub los, dynamically kho cov txheej xwm ua hauj lwm ntawm induced cua ntsawj ntshab kiv cua thiab circulating twj tso kua mis, ua tiav kev lag luam ntse thiab kev saib xyuas ntawm lub cev, thiab ntxiv dag zog rau kev siv efficiency.
Tam sim no, nrog rau kev sib sib zog nqus ntawm lub tswv yim ntawm kev lag luam ntsuab kev loj hlob, thev naus laus zis ntawm blast furnace flue roj cua sov rov qab cua sov kuj tseem niaj hnub innovating thiab kho dua tshiab. Daim ntawv thov ntawm cov ntaub ntawv tshiab (xws li graphene reinforced composite kav) ntxiv txhim kho cov cua sov kom zoo, kev sib koom ua ke ntawm cov cuab yeej digital ntxaib ua kom muaj txiaj ntsig tiag - lub sijhawm saib xyuas thiab kev ceeb toom tsis raug ntawm cov cuab yeej siv, thiab kev sib txuas ntawm cov twj siv hluav taws xob thiab cov khoom siv thermal khaws cia ntxiv tshawb xyuas lub peev xwm rau kev siv cov khoom siv hluav taws xob nruab nrab thiab qis qis. Nyob rau hauv lub neej yav tom ntej, nrog kev txhim kho txuas ntxiv ntawm thev naus laus zis, blast furnace flue gas cua sov rov qab cua sov yuav ua tau zoo dua, ntse, thiab ruaj khov. Nws tuaj yeem tsis tsuas yog siv rau cov chaw cog ntoo steel xwb, tab sis kuj nthuav dav rau cov neeg nyob ib puag ncig cov cua sov, paub txog kev sib koom tes ntawm kev siv lub zog ntawm thaj chaw cog thiab hauv nroog, thiab qhib qhov chaw dav dav rau kev siv cov khoom siv hluav taws xob hluav taws xob.
Kev lag luam khib nyiab cua sov yog qhov zais 'cov khoom muaj nqis ntsuab', thiab kev siv lub tshuab hluav taws xob hluav taws xob hluav taws xob hluav taws xob rov qab rau cov cua sov tsis yog tsuas yog kev siv hluav taws xob zoo xwb, tab sis kuj yog ib qho kev coj ua rau cov tuam txhab ua kom muaj kev lav phib xaub thiab txhawb kev loj hlob ntsuab thiab qis - carbon. Raws li kev taw qhia ntawm "dual carbon" lub hom phiaj, ntau thiab ntau cov tuam txhab hlau yuav ua rau lawv cov kev siv zog hauv kev siv hluav taws xob pov tseg thiab kev siv, daws cov teeb meem ntawm cov hluav taws xob pov tseg los ntawm kev siv tshuab thev naus laus zis, hloov blast furnace flue gas los ntawm "khoom siv hluav taws xob" mus rau "sov tam sim no", txhaj lub zog tshiab rau kev hloov pauv ntsuab ntsuab, thiab ua tiav cov txiaj ntsig ntawm kev lag luam thiab ib puag ncig.
