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Kev lag luam xov xwm

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Txo cov pa phem ntawm kev lag luam stainless hlau

Sijhawm: 2021-01-12 Ntaus: 66

Lus Nug: Nyob rau hauv xyoo tas los no, Pawg Neeg Saib Xyuas Kev Ncaj Ncees thiab Xeev Pawg Neeg Saib Xyuas tau muab qhov tseem ceeb rau kev hloov pauv ntawm cov hlau thiab hlau tsis tshua muaj qis. Hauv ntau lub rooj sib tham tseem ceeb thiab tsoomfwv cov lus tshaj tawm ua haujlwm, nws tau raug thov los txhawb kev hloov pauv hloov pauv ntawm cov hlau thiab hlau. "Cov kev xav ntawm Kev Txhim Kho Kev Ua Haujlwm ntawm Ultra-Low Emissions hauv Hlau thiab Hlau Kev Lag Luam" (Tom qab kev tshaj tawm ntawm Huan Taiqi [2019] No. 35), txhua cheeb tsam yuav tsum tau ua kom muaj kev hloov pauv qis qis ntawm kev lag luam steel hauv theem thiab cheeb tsam. Cov kev txwv emissions hauv "Kev xav" tseem hu ua "cov qauv nruj tshaj plaws hauv keeb kwm" los ntawm cov kws tshaj lij kev lag luam. Raws li qhov xwm txheej dav dav no, los ntawm kev sib txuas los ntawm qhov ntsuas qhov yuav tsum tau ua rau cov pa phem hauv cov ntaub ntawv thiab cov xwm txheej tam sim no ntawm kuv lub teb chaws cov plua plav tshem tawm tshuab, sib piv qhov zoo thiab qhov tsis zoo ntawm lub ntsiab plua plav tshem tawm tshuab nrog kev lees paub siab hauv kev lag luam, thiab sib tham txog kev xaiv ntawm kev tshem tawm cov plua plav thev naus laus zis raws li cov kev xav tau tshiab. Thiab hloov kho cov tswv yim rau kev siv los ntawm cov tuam txhab hlau cuam tshuam thiab pab kom yeej kev sib ntaus sib tua tiv thaiv lub ntuj xiav.
Txhawm rau ua raws li kev txiav txim siab thiab kev xa tawm ntawm Pawg Thawj Coj ntawm Pawg Thawj Coj thiab Pawg Thawj Coj hauv Xeev, thaum lub Plaub Hlis 2019, Ministry of Ecology thiab Ib puag ncig, nrog rau Pawg Saib Xyuas Kev Txhim Kho thiab Kev Hloov Kho thiab Ministry of Industry thiab Information Technology, tau koom ua ke tshaj tawm "Cov Kev Pom Zoo ntawm Kev Txhim Kho Kev Ua Haujlwm ntawm Ultra-Low Emissions hauv Kev Lag Luam Hlau" (tom qab no hu ua "Kev xav"). Cov "Kev xav" tau rov nruj dua cov qauv emission qub rau cov khoom siv hauv ntau cov txheej txheem steel, thiab tau hais tias cov emissions ultra-low hais txog ultra-low thoob plaws hauv cov txheej txheem. Nws tseem tso siab rau cov kev xav tau ua ntej rau kev hloov pauv tsis tshua muaj nyob hauv ntau thaj tsam, uas ntxiv txhawb kev tshem tawm plua plav thiab kev kho tshuab ntawm kev lag luam steel. Hloov. Txawm li cas los xij, tam sim no, feem ntau cov tuam txhab hlau thiab hlau hauv tsev tau ntev lub tshuab hluav taws xob-hloov cov txheej txheem, nrog ntau thiab cov txheej txheem nyuaj. Nws tsis yog ib txoj haujlwm yooj yim kom ua tau raws li cov qauv ntawm cov teeb meem emission ntawm tag nrho cov txheej txheem tsim khoom. Ntxiv mus, txoj kev loj hlob ntawm domestic hlau thiab steel tuam txhab uas muag yog unevenly, thiab lub peev xwm ntau lawm uas tsis tau raws li ib puag ncig tiv thaiv qauv yog tseem tsis tshua muaj. Yog li ntawd, kev txhim kho thiab kho dua tshiab ntawm cov chaw tshem tawm plua plav yog qhov tseem ceeb. Yog li ntawd, raws li txoj cai tswjfwm kev tiv thaiv ib puag ncig tam sim no, nrhiav kom ua tiav qhov kev txwv qis qis ntawm cov plua plav hauv lub sijhawm luv luv yog qhov tsis txaus ntseeg qhov teeb meem tseem ceeb tshaj plaws los ntawm cov tuam txhab steel.
Daim iav-Gold1
1. Cov kev cai tswj hwm cov teeb meem hauv ultra-low emission transformation
Thaum lub Plaub Hlis 2019, "Cov Kev Pom Zoo" tau tshaj tawm, tawm tsam cua daj cua dub ntawm kev tiv thaiv ib puag ncig steel, tshaj tawm tias kuv lub teb chaws txoj kev lag luam hlau tag nrho tau nkag mus rau qhov xwm txheej ntawm kev hloov pauv qis qis qis. Hais txog qhov ntsuas qhov teeb meem, "Kev xav" xav tau cov pa tso pa tawm hauv daim ntawv ntawm kev teeb tsa, sintering tshuab taub hau thiab pellet roasting flue roj (xws li lub qhov cub tawg, grate-rotary kiln, txoj siv roaster), coking txheej txheem coke cub chimney tso pa roj, Lwm yam Cov pa phem loj (xws li tus Tsov tus tw ntawm lub tshuab sintering, thee them, coke qhuav quenching, kub moj tej tawg qhov cub, blast furnace pits thiab tapping tsev, kub hlau pretreatment, converter theem nrab flue gas, thiab lwm yam.) Qhov nruab nrab emission concentration ntawm cov teeb meem ib teev twg. tsis siab Ntawm 10 mg / m3, qhov nruab nrab emission concentration ntawm tsawg kawg yog 95% ntawm lub sij hawm ib hlis ua tau raws li tus qauv; Cov pa roj pov tseg yog nyob rau hauv ib daim ntawv uas tsis muaj kev sib koom ua ke, cov khoom siv thauj khoom thiab cov ntsiab lus blanking, sintering, pelletizing, ironmaking, coking thiab lwm yam txheej txheem ntawm cov khoom crushing, kev tshuaj ntsuam xyuas, cov chaw tshem tawm plua plav yuav tsum tau muab rau cov khoom sib tov thiab cov khoom seem. Tsis tas li ntawd, "Kev xav" kuj tau taw qhia tias cov tuam txhab lag luam yuav tsum xaiv cov khoom lag luam paub tab thiab siv tau los tiv thaiv ib puag ncig kev hloov pauv cov thev naus laus zis raws li lub Hoobkas, thiab txhawb kom siv cov khoom siv tshem tawm cov plua plav siab heev xws li cov yeeb yaj kiab-coated lim hnab plua plav collectors thiab lim cartridge plua plav collectors. , uas taw qhia cov kev taw qhia rau kev xaiv cov plua plav tshem tawm kev kho tshuab. .
2. Cov xwm txheej tam sim no ntawm kev siv tshuab tshem tawm plua plav
Tom qab tshawb xyuas ntau tshaj 20 lub tuam txhab hlau thiab hlau, nws pom tau tias yuav luag txhua lub tuam txhab hlau thiab hlau siv cov khoom siv ua haujlwm zoo hauv lub hnab lim lossis lim cartridge los kho cov pa roj uas muaj plua plav, thiab qee cov txheej txheem uas tsim cov pa ntub dej siv cov dej ntub dej electrostatic precipitators. Lub tuam txhab ntseeg hais tias cov txheej txheem mature no muaj qhov zoo tshaj plaws cov plua plav thiab cov roj pov tseg kev kho mob, uas yog tib yam li cov tshuab tshem tawm plua plav tau hais hauv "Kev xav". Tsis tas li ntawd, raws li cov thev naus laus zis ua tau zoo rau kev kho cov teeb meem hauv cov pa hauv cov pa uas tau teev tseg hauv "Technical Specifications for Pollution Permit Application and Issuance", tshwj tsis yog rau cov pa hluav taws xob uas tsim los ntawm kub dov zeb tiav dov, lwm cov pa pa tawm. pollution nodes tuaj yeem kho nrog lub hnab plua plav (npog). Membrane lim khoom) thiab lim cartridge plua plav tshem tawm txheej txheem. Yog li, tsab xov xwm no tsuas yog txheeb xyuas qhov zoo thiab qhov tsis zoo thiab daim ntawv thov ntawm lub hnab thiab lim cartridge plua plav tshem tawm thev naus laus zis.
Lub hnab lim tau tshwm sim ua ntej thiab tau siv thaum ntxov thaum xaus ntawm Westernization Movement. Nws yog tsuas yog siv los lim qhuav, plua plav roj nrog me me particle loj. Lub hnab lim yog tsim los ntawm ntau yam lim fibers (tshuaj fiber ntau lossis iav fiber ntau) los ntawm kev xaws lossis rab koob punching, thiab siv cov lim dej ntawm cov ntaub fiber ntau los lim cov plua plav uas muaj roj. Lub cartridge hom plua plav collector tshwm sim lig. Hauv xyoo 1970, qee cov neeg siv tau tshwm sim hauv Western lub tebchaws. Lawv ntseeg hais tias hom plua plav collector no kuj me me, txhim khu kev ua tau zoo, thiab yooj yim los tswj. Txawm li cas los xij, yog tias nws tsim nyog los kho cov pa roj av nrog cov huab cua loj dua, cov txiaj ntsig kev kho mob yuav tsis zoo vim lub peev xwm me me ntawm cov nag lossis daus, uas nyuaj rau kev thov hauv cov tuam txhab loj, yog li nws tsis tau nthuav dav rau ntau yam. xyoo. Txij li thaum lub xyoo pua 21st, lub ntiaj teb cov khoom siv technology tau tsim sai heev. Qee lub tuam txhab txawv teb chaws tau ua tus thawj coj hauv kev txhim kho cov qauv thiab cov khoom siv lim dej ntawm cov khoom siv plua plav, ua kom lub peev xwm tag nrho los ntawm ob peb zaug thiab dhau los ua cov plua plav loj loj nrog thaj tsam lim ntau dua 2,000 m2.
3. Kev sib piv ntawm kev siv tshuab tshem tawm plua plav
1. Hnab plua plav collector
(1) Lub hauv paus ntsiab lus ua haujlwm ntawm lub hnab lim
Cov roj av uas muaj plua plav nkag mus rau hauv lub qhov cua tawm ntawm lub hood tshem tawm plua plav, thiab thaum nws mus txog qhov hluav taws xob, nws yog induced los ntawm induced cua ntxuam, thiab tom qab ntawd cov plua plav tshem tawm cov plua plav lim hnab yog siv los ntes cov pa taws thiab plua plav nrog kev pab. ntawm lub ntiajteb txawj nqus thiab inertia.
(2) Lub ntsiab tseem ceeb cuam tshuam rau kev ua haujlwm ntawm lub hnab lim
Kev ua haujlwm ntawm lub hnab lim feem ntau suav nrog kev tshem tawm plua plav, kev poob siab thiab kev pabcuam lub neej. Lub ntsiab tseem ceeb uas txiav txim siab qhov kev tshem tawm plua plav thiab kev pab cuam lub neej ntawm lub hnab lim muaj xws li qhov sib piv ntawm huab cua-rau-daim ntaub, hom khoom siv lim, thiab xaiv txoj kev tshem tawm plua plav.
Cov khoom siv lim dej ntawm lub hnab lim tau hloov zuj zus los ntawm cov pa fiber ntau mus rau superfine fibers, tom qab ntawd mus rau tshwj xeeb zoo li tus ntoo khaub lig-section fibers, thiab tom qab ntawd mus rau ePTFE membrane qauv. Cov pa fibers tsis tuaj yeem tswj cov plua plav zoo, yog li nws yog qhov tsim nyog los hloov cov qauv fiber ntau lossis siv lub zog sab nraud kom ua tiav cov plua plav qis qis qis; ultra-fine fiber ntau zoo li tus ntoo khaub lig-section fibers muaj qhov loj dua qhov chaw tshwj xeeb, ua rau thaj chaw pom loj dua, yog li txo cov huab cua-rau-dawb piv; ePTFE daim nyias nyias tuaj yeem cuam tshuam cov plua plav tawm ntawm daim nyias nyias. Tam sim no, kev xaiv ntawm cov khoom siv lim membrane rau cov khoom siv lim lim yog qhov kev xaiv nrog cov plua plav tshem tawm ntau dua.
2. Cartridge plua plav collector
Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm lub lim cartridge plua plav collector: Cov roj av uas muaj plua plav nkag mus rau hauv qhov cua nkag los ntawm cov plua plav collector, thiab nkag mus rau hauv lub thawv los ntawm cov cua ntsawj ntshab sab nraud. Vim hais tias lub thawv muaj lub vojvoog loj dua li cov yeeb nkab, cov cua ntws tawm, thiab cov khoom hnyav hnyav ntawm cov plua plav tawm los ntawm lub ntiajteb txawj nqus, cov khoom sib zog me me ntawm cov plua plav nkag mus rau hauv lub lim cartridge nrog cov cua ntws, thiab raug thaiv los ntawm cov khoom lim los ntawm ib series ntawm cov teebmeem zoo thiab tom qab ntawd sib cais los ntawm huab cua.
3. Kev sib piv ntawm qhov zoo thiab qhov tsis zoo ntawm lub hnab lim thiab lim cartridge
Hnab hom plua plav collector thiab lim cartridge plua plav collector muaj lawv tus kheej qhov zoo thiab qhov tsis zoo hauv cov txheej txheem siv. Thaum xaiv cov txheej txheem tshem tawm plua plav, kev txiav txim siab dav dav yuav tsum tau muab rau lub tuam txhab qhov xwm txheej. Qhov zoo thiab qhov tsis zoo yog qhia hauv Table 1.
Plaub, kev ua lag luam siv cov ntaub ntawv txheeb xyuas
Siv cov txheej txheem tshem tawm cov plua plav hloov pauv ntawm lub qhov cub tawg qhov txheej txheem ntawm pawg hlau hauv Hebei Xeev ua piv txwv. Lub tuam txhab Ameslikas siv lub hnab lim kom tshem tawm cov plua plav tawm ntawm cov pa tso pa tawm hauv qhov chaw tawg rau qhov cub. Txawm li cas los xij, nws tau pom thaum siv tias nws yuav ua rau muaj kev tsis sib haum xeeb vim kev ua haujlwm. Lub hnab teeb meem. Nyob rau tib lub sijhawm, vim tias cov plua plav tshem tawm tsis zoo ntawm lub hnab lim, cov pa pa tawm ntawm ntu no tsis tuaj yeem ua tau raws li cov kev cai ntawm ultra-low emission qauv. Xav txog cov xwm txheej ntawm kev ncav cuag tus qauv thiab peev peev los hloov lub hnab lim, lub tuam txhab txiav txim siab los hloov cov txheej txheem tshem tawm plua plav thiab hloov lub hnab lim nrog lub lim cartridge lim. Cov kev tsis sib xws thiab cov txiaj ntsig sib piv ua ntej thiab tom qab kev hloov pauv tau qhia hauv Table 2.
Raws li cov ntaub ntawv soj ntsuam online ua ntej thiab tom qab kev hloov pauv, cov pa paug tawm ntawm cov pa pa tawm hauv ntu no tau txo qis heev, thiab nws tuaj yeem ncav cuag li ntawm 10 mg / m3, ua tau raws li cov cai ntawm ultra-low emission qauv. Piv nrog rau ua ntej kev hloov pauv, tom qab siv lub lim lim cartridge plua plav collector, qhov teeb meem ntawm kev hnav yooj yim thiab kev xau ntawm lub hnab lim raug zam, feem ntau nws tuaj yeem siv tau ntev yam tsis muaj kev saib xyuas, txawm tias lub lim cartridge tshem tawm thiab hloov, Nws yog qhov yooj yim heev, thiab nws tau nthuav dav hauv qhov chaw txwv. Qhov chaw lim dej tau txo qis, qhov sib txawv ntawm qhov sib txawv me me, thiab cov nyhuv tshem tawm cov plua plav yog qhov ruaj khov. Tab sis tom qab hloov lub lim cartridge plua plav collector, kuj muaj qee qhov tsis txaus.
Los ntawm kev sib txuas lus nrog cov neeg ua haujlwm sab hauv ntawm lub tuam txhab, tus sau tau kawm tias cov cuab yeej siv tom qab kev hloov pauv yog qhov nyuaj dua li ua ntej, thiab lub tuam txhab yuav tsum muaj cov khoom siv siab, kev teeb tsa thiab kev tswj xyuas. Tsis tas li ntawd, qhov kev xaiv ntawm lub lim cartridge plua plav collector rau cov plua plav qhuav tsis zoo li qhov xav tau, thiab nws tsis muaj cov plua plav tshem tawm siab rau txhua hom plua plav. Yog tias koj xav siv nws rau txhua qhov txheej txheem, nws tseem yuav tsum muaj kev tshawb fawb tob thiab txhim kho. Feem ntau, nyob rau hauv qhov kev tiv thaiv ib puag ncig hnyav zuj zus, raws li kev xav txog kev ua raws li ib puag ncig, cov txiaj ntsig ntawm kev hloov pauv tseem ceeb heev.
Tsib, cov lus qhia luv luv
1. Cov lus qhia rau kev xaiv cov txheej txheem
Tam sim no, tsis xav txog kev tshem tawm cov plua plav ntub dej, kev xaiv zoo tshaj plaws ntawm kev tshem cov plua plav tawm hauv qhov xwm txheej ultra-low emission yuav tsum yog cartridge plua plav collector thiab lub hnab lim. Ob hom plua plav collectors muaj lawv tus kheej qhov zoo thiab qhov tsis zoo. Rau qhov ultra-low particulate emission transformation ntawm steel lag luam, nws yog pom zoo kom cov lag luam tuaj yeem xaiv cov tshuab tshem tawm plua plav raws li cov xwm txheej tiag tiag thiab lawv tus kheej xav tau. Yog tias cov txheej txheem tshem tawm cov hnab ntim thawj zaug tseem tsis tuaj yeem ua tiav cov qauv emission ruaj khov, thawj kauj ruam yuav xav txog kev hloov PTFE microporous membrane thiab ultra-fine fiber nto txheej gradient lim khoom. Thib ob, xav txog kev hloov cov txheej txheem lim cartridge plua plav tshem tawm kom ua tiav qhov kev hloov pauv qis qis qis thiab ua tiav cov qauv emission.
2. Cov tswv yim tsim qauv engineering
Txhawm rau pab cov tuam txhab ua tau raws li qhov yuav tsum tau ua ntawm "Cov Kev Pom Zoo" thiab muab cov ntaub ntawv siv rau kev tsim thiab tsim engineering, thaum Lub Ib Hlis 2020, Tuam Tshoj Environmental Protection Industry Association tau tshaj tawm "Cov Lus Qhia rau Ultra-low Emission Reconstruction of Iron and Steel Enterprises", nyob rau hauv uas cov txheej txheem kev tshem tawm cov plua plav siab thiab lim Lub nruas plua plav tshem tawm cov txheej txheem nthuav tawm cov txheej txheem ntawm cov txheej txheem parameter siv qhov tseem ceeb, thiab nws raug pom zoo tias cov tuam txhab tuaj yeem xa mus rau lawv hauv cov txheej txheem ntawm ultra-low emission transformation raws li lawv cov xwm txheej. . Siv lub hnab lim ua piv txwv, nws raug pom zoo tias thaum lub tuam txhab ua daim ntawv cog lus, lub lim cua ceev yuav tsum tau tsim kom tsawg dua 0.8 m / min. Lub lim cua ceev ntawm no yuav tsum yog tag nrho cov lim cua ceev. Tag nrho cov pom cua ceev yog qhov theoretically xam pom cua ceev. Thaum lub off-line plua plav collector ntxuav cov plua plav, ib qho ntawm cov bins yuav raug kaw thiab qhov tseeb pom cua ceev yuav nce. Qhov no kuj yog lub sij hawm thaum emissions feem ntau yuav tshaj tus qauv, yog li qhov yuav tsum tau yog tag nrho pom cua ceev; Nws raug nquahu tias cov khoom siv plua plav yog tsim los nrog lub deflector los tswj cov cua ntws tawm. Yog tias tsis xaiv lub deflector, lub hnab lim lossis lim cartridge yuav raug ntxuav los ntawm cov cua ntws thiab txo cov kev pab cuam lub neej.
"Blue Sky Defense" tau nkag mus rau theem kawg ntawm kev daws teeb meem nyuaj. Raws li qhov kev sib ntaus sib tua tseem ceeb rau kev tiv thaiv huab cua thiab kev tswj hwm, kev lag luam steel yog qhov tseem ceeb rau kev hloov pauv qis qis qis. Hlau thiab steel tuam txhab uas muag yuav tsum nquag teb, qhia meej ib puag ncig muaj kuab paug tswj cov tswv yim, thiab txhawb kev txhim kho ib puag ncig zoo thiab kev hloov kho kev lag luam.

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