Raws li cov qauv kev lag luam pov tseg cov pa hluav taws xob txuas ntxiv mus ntxiv, kev siv cov tshuab ntub dej ntub dej los tswj cov pa roj carbon monoxide (xws li HCl, SO₂, HF) thiab cov organic soluble tau nce sai.GRP cov tshuaj txhuam hniav(fiberglass reinforced yas scrubbing towers), nrog rau lawv cov integrally molded corrosion- resistant shells thiab saj zawg zog sab hauv configurations, yog maj mam hloov roj hmab-lined carbon steel los yog stainless hlau yees nyob rau hauv lub tshav pob ntawm me me mus rau nruab nrab ntim tso pa roj purification.
Material Properties thiab Tower Structure
Tus yuam sij rau qhov tsim nyog ntawm GRP (iav fiber ntau reinforced yas) rau txhuam cov yees nyob rau hauv qhov tseeb tias nws cov resin matrix tuaj yeem hloov kho raws li cov roj theem muaj pes tsawg leeg. Piv txwv li, thaum kho cov pa pa uas muaj hydrogen fluoride, phenolic vinyl ester resin yuav tsum raug xaiv; Thaum rau alkaline scrubbing tej yam kev mob, isophthalic unsaturated polyester muab txaus alkali tsis kam. Tsis zoo li cov tuam tsev hlau, GRP lub tog raj kheej yog tsim los siv cov txheej txheem winding, qhov uas txuas ntxiv iav fibers thiab resin yog hla -pw ntawm xam helix thiab circumferential kaum- cov txheej txheem no tsim ib qho axial rau circumferential lub zog piv uas meej phim qhov tsis zoo los yog zoo siab load nyob rau hauv lub pej thuam.
Cov qauv sab hauv ntawm tus pej thuam feem ntau muab faib ua peb ntu: thaj chaw qis cua nkag hauv qhov chaw, qhov nruab nrab ntawm qhov ntim loj hloov chaw, thiab thaj chaw sab saud thiab emission. Ntawm cov no, kev xaiv cov khoom siv rau cov ntawv ntim khoom thiab cov yeeb nkab txhuam yog yooj yim tshaj plaws saib xyuas: yog 304 stainless hlau bolts siv los kho PP daim phiaj, "galvanically nrawm corrosion" yuav tshwm sim ntawm qhov khoob thaum Cl⁻ concentration siab dua 200ppm thiab pH hloov pauv. Ib txoj hauv kev zoo tshaj yog siv tib qib ntawm GRP pultruded profiles lossis CPVC cov khoom siv rau tag nrho cov khoom siv sab hauv (xws li cov phiaj xwm siab thiab cov khoom siv ua kua).
Tej kev siv
Acid effluent systems nyob rau hauv lub semiconductor kev lag luam yog ib tug nquag thov scenario rau GRP scrubbers. Cov pa roj sib xyaw ua ke (HF + HNO₃ + acetic acid) tawm los ntawm etching thiab ntxuav cov txheej txheem yuav luag tsis muaj txiaj ntsig rau cov hlau-txawm Hastelloy alloys tawm tsam kom tiv thaiv kev sib koom ua ke ntawm 65% nitric acid thiab hydrofluoric acid. Txawm li cas los xij, GRP ntauwd lub cev ua los ntawm bisphenol A epoxy vinyl ester resin, ua ke nrog ob -theem txheej txheem ua ntej- ntxuav + ntim ntim, tuaj yeem tswj tau tag nrho cov fluoride emissions hauv qab 5mg / m³.
Lwm daim ntawv thov yog nyob rau hauv cov dej khib nyiab kho deodorization tshuab: malodorous tshuaj xws li H₂S thiab methanethiol yog absorbed los ntawm alkaline ntxuav tom qab los ntawm sodium hypochlorite oxidation. GRP yees tuaj yeem kav ntev li 12-15 xyoo nyob rau hauv qhov chaw siab -cov av noo thiab ntsev-nplua nuj, deb tshaj li 5-8 xyoo ntawm coated carbon steel yees.
Maintenance Cycle thiab Performance Maintenance
Thaum lub sijhawm ua haujlwm ntev -, peb qhov ntsuas yuav tsum tau saib xyuas: ntauwd siab poob, tshuaj tsuag nozzle ntws tus nqi, thiab cov kua dej pH sib txawv. Kev poob siab nce los ntawm qhov pib 600 Pa mus rau 1200 Pa feem ntau qhia txog kev ntim khoom thaiv - rau cov pa roj av plua plav (xws li cov pa roj av incinerator), lub tshuab ziab khaub ncaws ua ntej - lim lossis cua daj cua dub ntauwd tuaj yeem muab ntxiv rau ntawm GRP scrubber. Nozzle blockage feem ntau yog tshwm sim los ntawm crystallization ntsev los nag: qhov kev daws teeb meem yog ntxiv cov nplai inhibitor (concentration 50-100 ppm) rau cov kua circulating los yog ib ntus backflushing nrog tsawg-siab chav.
Hais txog kev lag luam, txawm hais tias thawj tus nqi yuav khoom ntawm GRP scrubber yog kwv yees li 20% mus rau 30% siab dua li ntawm PP scrubber (vim pwm amortization thiab resin nqi), txiav txim siab tias PP softens saum 60℃thiab rhiab heev rau ultraviolet lub teeb, thaum GRP tuaj yeem tiv taus 80℃(txog 120 degree} tsis xav tau ib qho tshwj xeeb resins) txheej, nws tag nrho lub neej voj voog tus nqi feem ntau yog qhov zoo dua. Rau cov ntawv thov uas yuav tsum tau tuav cov halogenated los yog muaj zog oxidizing gases (xws li ozone thiab chlorine), GRP yog yuav luag ib qho kev xaiv tsim nyog.