(1) Cov cuab yeej siv tshem tawm plua plav xws li lub ntiajteb txawj nqus plua plav collectors, inertial plua plav collectors, centrifugal plua plav collectors, thiab cov khoom siv zoo sib xws.
(2) Cov khoom ntub dej- txhuam cov plua plav tshem tawm suav nrog dej- cov khoom siv da dej, ua npuas dej- cov khoom siv plua plav, Venturi scrubbers, dej- cov khoom siv plua plav, thiab cov khoom siv zoo sib xws.
(3) Kev lim dej- cov khoom siv tshem tawm plua plav muaj xws li cov hnab ntim cov ntaub lim dej thiab granular- cov ntxaij lim dej txaj, thiab lwm yam.
(4) Electrostatic precipitators.
(5) Cov khoom siv sib nqus plua plav tshem tawm.
Mechanical Force
Inertial plua plav collectors yog cov khoom siv cais thiab ntes plua plav los ntawm kev siv lub zog inertial; qhov no yog ua tiav los ntawm kev coj cov plua plav-laden roj kom sib tsoo nrog cov baffles lossis los ntawm kev ua rau cov cua ntws mus rau qhov hloov pauv sai. Inertial plua plav collectors tseem hu ua inert plua plav collectors.
Inertial plua plav collectors tau muab faib ua ob hom: kev sib tsoo -hom thiab rotary- hom. Cov qub koom nrog kev txhim kho ib lossis ntau qhov baffles raws li cov kev taw qhia ntawm airflow; raws li cov plua plav- cov pa roj sib tsoo nrog cov baffles no, cov plua plav yog cais tawm ntawm cov kwj dej. Pom tau tias, qhov siab dua cov pa tawm ua ntej tawm tsam cov baffle- thiab qis dua nws dhau los tom qab kev sib tsoo - cov plua plav tsawg dua cov roj khaws cia, ua rau cov plua plav tshem tawm ntau dua. Hom tom kawg ua haujlwm los ntawm kev ua rau cov hmoov av-laden gas hloov kev taw qhia ntau zaus, yog li cais cov plua plav thaum lub sijhawm tig. Qhov me me ntawm lub vojvoog ntawm curvature ntawm cov roj tig, thiab qhov siab dua qhov nrawm thaum lub sijhawm tig, qhov ntau dua qhov kev tshem tawm cov plua plav.
Kev ua tau zoo ntawm inertial plua plav collectors txawv nyob ntawm seb lawv cov qauv tsim tshwj xeeb. Thaum cov roj tshaj tawm hauv cov khoom siv qis dua 10 m / s, qhov poob siab feem ntau yog nyob nruab nrab ntawm 200 thiab 1000 Pa, thiab kev tshem tawm plua plav tawm ntawm 50% thiab 70%. Hauv kev siv cov tswv yim, inertial plua plav collectors feem ntau yog nyob rau hauv thawj theem nyob rau hauv ib tug multi-theem plua plav tshem tawm system, uas lawv yog siv los cais coarser plua plav hais. Lawv yog cov tshwj xeeb tshaj yog zoo - haum rau kev ntes cov plua plav qhuav nrog qhov loj me tshaj 10 μm, tab sis tsis haum rau tshem cov nplaum los yog cov plua plav fiber ntau. Inertial plua plav collectors kuj tseem siv tau los cais cov kua dej; Hauv cov xwm txheej zoo li no, kev pom zoo tshaj tawm roj av ntawm 1 txog 2 m / s hauv cov cuab yeej raug pom zoo.
Bio-Nanofilm Technology
Bio-nanofilm cov khoom siv tshuaj tiv thaiv plua plav yog ib lub tshuab uas nyuam qhuav tau txais txiaj ntsig thoob ntiaj teb. Nws siv cov bio advanced tshaj plaws -nanofilm technology muaj hnub no; los ntawm kev txau BME nanofilm rau saum npoo ntawm cov ntaub ntawv, nws feem ntau inhibits plua plav tiam thaum lub sij hawm tsim khoom thiab ua tiav. Hom kev tswj plua plav no poob rau hauv qeb ntawm "pre-emission" kev tshem tawm plua plav tawm - ua * ua ntej * plua plav tawm - uas muaj txiaj ntsig zoo tshaj li "post-}" cov txheej txheem tshem tawm plua plav, ua kom cov plua plav tswj tau zoo thoob plaws tag nrho cov txheej txheem tsim khoom. Txhua plua plav tsim thaum lub sijhawm ua haujlwm crushing yog agglomerated rau hauv cov khoom zoo, uas thaum kawg los ua ib feem ntawm cov khoom tiav, yog li nce yield los ntawm 0.5% mus rau 3%. Tsis tas li ntawd, cov thev naus laus zis no txo cov pa phem PM2.5 thiab PM10, ua raws li kev tiv thaiv ib puag ncig hauv tebchaws thiab lub zog-txuag txoj cai. Muab piv rau cov ntaub ntub dej thiab cov tshuab lim dej hauv lub hnab, bio-nanofilm plua plav tiv thaiv tsis muaj dej paug; cov tshuaj siv tshuaj siv tsis muaj kev cuam tshuam ib puag ncig thiab tsis cuam tshuam qhov zoo ntawm cov khoom tiav. Nws tseem suav nrog cov nqi pib nqis peev tsawg dua. Cov cuab yeej no tsim nyog rau kev tswj cov plua plav hauv ntau qhov chaw, suav nrog cov mines, qhov chaw tsim kho, quarries, cov khoom khaws cia, cov chaw nres nkoj, thermal fais fab nroj tsuag, steel mills, thiab cov chaw kho cov khib nyiab. Txawm hais tias bio-nanofilm plua plav tiv thaiv twb tau pom ntau daim ntawv thov txawv teb chaws, tam sim no kuj tau maj mam txais yuav thoob plaws ntau lub xeev thiab nroog hauv Suav teb.
Npuag Scrubbing (Tshuaj-Hom)
Txau- hom khoom tshem tawm plua plav ua haujlwm los ntawm atomizing dej rau hauv cov huab cua zoo ntawm cov nozzles nyob rau hauv cov khoom siv plua plav. Raws li cov plua plav- cov pa roj paug dhau los ntawm qhov chaw tsis zoo no, cov khoom siv plua plav sib tsoo nrog, raug cuam tshuam los ntawm, thiab agglomerate nrog cov tee dej, ua rau cov khoom tawm ntawm cov kwj dej nrog rau cov tee dej.
Cov khoom siv tshem tawm plua plav hom no muaj cov qauv yooj yim, tsis tshua muaj cua tsis kam, thiab ua haujlwm yooj yim. Ib qho txiaj ntsig zoo tshaj plaws yog tias, tsis zoo li qee lwm lub tshuab, nws tsis muaj qhov nqaim lossis cov orifices zoo; yog li ntawd, nws tuaj yeem kho tau cov pa roj flue zoo nrog cov plua plav siab siab yam tsis muaj qhov txhaws.
Tsis tas li ntawd, vim hais tias cov tshuaj tsuag tsuag yog cov ntxhib ntxhib, tsis tas yuav tsum muaj kev nplua tshwj xeeb -mist nozzles, ua rau muaj kev txhim khu kev qha ntau dua. Txau- hom plua plav collector tuaj yeem siv cov dej rov ua dua tshiab - rov siv cov kua kom txog thaum cov ntsiab lus ntawm cov khoom raug tshem tawm mus txog qib siab heev - yog li ua kom yooj yim rau cov kev cai rau cov chaw kho dej. Rau cov laj thawj no, hom khoom siv tshem tawm plua plav no tseem yog qhov kev xaiv nrov rau ntau lub tuam txhab kev lag luam. Nws qhov kev tsis zoo tseem ceeb suav nrog cov hneev taw loj ntawm lub cev thiab kev ua haujlwm tsawg hauv kev ntes cov plua plav zoo heev; nws kuj yuav tsum tau ib tug loj npaum li cas ntawm cov dej. Yog li ntawd, nws yog feem ntau siv los kho cov pa roj flue uas muaj cov plua plav loj loj thiab cov hmoov av siab. Feem ntau siv tshuaj tsuag- hom khoom siv tshem tawm plua plav yog cais ua peb pawg raws li cov qauv ntws ntawm cov roj thiab cov kua hauv lub cuab yeej:
(1) Co- hom tshuaj tsuag tam sim no: Cov roj thiab cov kua dej ntws mus rau tib txoj kev.
(2) Counter-Tam sim no tshuaj tsuag hom: Cov kua yog txau nyob rau hauv ib qho kev taw qhia opposite rau cov roj ntws.
(3) Hla - hom tshuaj tsuag: Cov kua yog txau rau hauv ib qho kev taw qhia ntawm cov roj ntws.
Atomized Plua plav tshem tawm
Kev tshem tawm cov plua plav atomized hais txog qhov tsis txaus uas feem ntau cuam tshuam nrog cov tshuaj tsuag ib txwm siv - hom khoom siv tshem tawm plua plav tawm - xws li, lawv lub cev loj, tsis muaj plua plav tshem tawm, thiab kev siv dej ntau heev - yog li txhim kho cov txiaj ntsig ntawm kev tshem tawm plua plav.
System Technical Principles
Lub kaw lus ua haujlwm los ntawm kev siv kev sib xyaw ua ke ntawm gravitational settling thiab dej -pua paug plua plav. Cov kua thiab roj yog xa mus rau hauv lub siab mus rau lub nozzle los ua ke; nyob rau hauv lub taub hau lub taub hau, cov kua thiab roj sib tov kom tsim tau cov atomized zoo uas tau raug tshem tawm ntawm lub nozzle orifice. Cov txheej txheem no tsim cov dej pos huab zoo heev - nyob rau hauv txoj kab uas hla ntawm 1 μm mus rau 10 μm- uas zoo adsorb cov plua plav tawm hauv huab cua. Cov plua plav no-laden cov tee dej nrawm nrawm rau hauv cov khoom loj dua uas, nyob rau hauv lub zog ntawm lub ntiajteb txawj nqus, tawm hauv cov kwj dej, yog li ua tiav cov hom phiaj ntawm kev tiv thaiv plua plav thiab kev txhim kho ib puag ncig.
Lub kaw lus nta zoo heev atomization tswj peev xwm; los ntawm kev kho qhov siab ntawm cov pa roj thiab cov kwj deg, lub atomization chav tsev tuaj yeem ua tau zoo -tuned kom ua tiav cov pa zoo tshaj plaws - mus rau - cov kua dej sib piv, yog li ua kom muaj cov tshuaj tsuag uas muaj cov tee dej tshwj xeeb.
Electrostatic Precipitators (ESP)
Electrostatic precipitators (ESPs) yog cov cuab yeej pabcuam tseem ceeb rau thermal fais fab nroj tsuag. Lawv lub luag haujlwm tseem ceeb yog tshem tawm cov khoom me me (fly tshauv) los ntawm cov pa hluav taws xob tawm los ntawm cov thee - raug rho tawm haujlwm lossis roj - raug rho tawm haujlwm boilers, yog li txo qhov ntim ntawm cov pa paug tawm mus rau hauv qhov chaw. Yog li ntawd, lawv yog ib qho tseem ceeb ntawm cov cuab yeej tiv thaiv ib puag ncig rau kev txo cov pa phem thiab txhim kho huab cua zoo. Lub hauv paus ntsiab lus ntawm kev khiav hauj lwm yog raws li nram no: raws li cov roj flue dhau los ntawm cov ductwork ua rau lub cev tseem ceeb ntawm ESP, cov teeb meem hauv cov dej ntws tau txais cov hluav taws xob zoo. Cov pa roj flue ces nkag mus rau hauv ESP chamber, uas yog haum nrog ntau txheej ntawm cov pa phem cathode.
Vim lub electrostatic attraction ntawm qhov zoo them cov hmoov av thiab cov pa phem cathode daim hlau, cov khoom me me nyob rau hauv cov roj flue adheres rau cathodes. Periodically, cov phaj cathode yog mechanically rapped los yog vibrated; qhov kev txiav txim no- tau tsav los ntawm kev sib xyaw ua ke ntawm lub ntiajteb txawj nqus thiab kev vibration- ua rau cov plua plav sib xyaw ua ke (thaum nws nce mus txog ib qho tuab) kom tshem tawm thiab poob rau hauv cov hmoov tshauv nyob hauv qab ESP qauv, yog li ua tiav tshem tawm cov teeb meem ntawm cov pa roj flue. Muab hais tias thermal fais fab nroj tsuag feem ntau siv loj - muaj peev xwm tsim units- xws li 600 MW units, uas siv kwv yees li 180 tons ntawm cov roj ib teev twg - qhov tshwm sim ntawm cov roj flue thiab hmoov av yog, nkag siab, loj heev. Yog li ntawd, qhov sib thooj electrostatic precipitators (ESPs) ua hauj lwm los kho cov emissions yog loj heev. Lub cev lub cev tseem ceeb ntawm lub tshuab hluav taws xob thermal ESP muaj tus ntoo khaub lig-sectional hneev taw ntawm kwv yees li 25-40 meters los ntawm 10-15 meters. Thaum qhov ntsuas ntawm 6-meter qhov siab ntawm cov tshauv hoppers, nrog rau qhov chaw ntsug xav tau rau cov pa roj ntws, qhov siab tag nrho ntawm ESP chav tsev feem ntau tshaj 35 meters. Rau xws li cov qauv hlau colossal, kev tsim qauv kev tshuaj xyuas yuav tsum tsis tsuas yog kev ntsuas zoo li qub thiab muaj zog nyob rau hauv tus kheej qhov hnyav, plua plav loads, cua loads, thiab seismic loads, tab sis kuj tseem muaj kev ntsuam xyuas nruj ntawm cov qauv kev ruaj ntseg tag nrho.
Lub cev tseem ceeb ntawm ESP yog cov qauv hlau, tsim los ntawm welded structural steel profiles. Nws sab nrauv yog clad nrog "daim tawv nqaij" (thin steel sheeting) thiab thermal rwb thaiv tsev cov ntaub ntawv los pab kom yooj yim ntawm kev tsim, fabrication, thiab installation. Cov qauv tsim siv cov txheej txheem txheej txheej: txhua qhov ntsug "slice" muaj ib lub moj khaum uas muaj ntau lub ntsiab kab, nrog cov kab uas nyob ib sab interconnected los ntawm loj longitudinal girders. Kom haum rau lub installation ntawm cladding thiab rwb thaiv tsev txheej, theem nrab kab teeb yog welded ntawm lub ntsiab beams. Muab qhov loj me ntawm cov qauv no, sim ua qauv txhua qhov kev sib txuas ntawm lub cev hauv qhov tsim software yuav ua rau muaj kev ua haujlwm tsis tuaj yeem thiab muaj ntau lub ntsiab lus suav.
Raws li kev tsim qauv tsim qauv tiag tiag thiab cov qauv tsim tshwj xeeb ntawm ESP lub cev tseem ceeb, cov haujlwm tseem ceeb ntawm kev tshawb nrhiav suav nrog lub zog ntawm cov qauv, tag nrho cov qauv kev ruaj ntseg, thiab qhov siab tshaj plaws kev hloov pauv ntawm cov kab teeb tseem ceeb yog lub luag haujlwm rau kev ncua cov cathode daim hlau. Rau cov cheeb tsam tshwj xeeb hauv cheeb tsam, kev tshuaj xyuas tsom mus rau kev soj ntsuam kev qaug zog ntawm kev sib txuas ntawm cov phaj cathode thiab cov kab teeb tseem ceeb - ua los ntawm kev cuam tshuam ntev mus rau lub sij hawm siv tshuab rapping - nrog rau kev txiav txim siab qhov zoo tshaj plaws rau dislodging cov plua plav los ntawm cov phaj cathode. Tsis tas li ntawd, kev tsom xam hais txog qhov kev xaiv tsim qauv zoo tshaj plaws txog kev sib txuas ntawm cov txheej txheem cladding (thin plates) thiab cov kab hluav taws xob loj / theem nrab nyob rau hauv cov cua thauj khoom, nrog rau qhov tsim nyog qhov sib npaug ntawm cov khoom no.
