II. Peb Qhov Chaw Ua Haujlwm ntawm Desulfurization Absorber

Lub absorber tuaj yeem muab faib ua peb qhov chaw ua haujlwm los ntawm sab saum toj mus rau hauv qab: oxidation crystallization, nqus thiab demisting cheeb tsam.

(1) Oxidation crystallization cheeb tsam yog hais txog lub pas dej slurry ntawm lub absorber, thiab nws lub luag haujlwm tseem ceeb yog kom yaj limestone thiab oxidize calcium sulfite.

(2) Qhov chaw nqus dej muaj xws li lub qhov nqus nqus dej, lub tais thiab ob peb txheej ntawm cov tshuaj tsuag. Muaj ntau qhov hollow cone nozzles ntawm txhua txheej ntawm cov cuab yeej tshuaj tsuag; Lub luag haujlwm tseem ceeb ntawm lub absorber rests ntawm acidic pollutant thiab ya tshauv nqus nyob rau hauv lub flue gas.

(3) Demisting cheeb tsam nta ob-theem demisters saum txheej txheej. Nws lub luag haujlwm tseem ceeb yog cais cov tee dej hauv cov pa roj, txo qhov cuam tshuam ntawm cov khoom siv hauv qab thiab qhov ntau npaum li cas ntawm absorbent.

Qhov chaw nqus ntawm lub absorber yog hais txog thaj tsam nruab nrab ntawm txoj kab nruab nrab ntawm qhov nkag ntawm lub absorber thiab qhov siab tshaj plaws txau txheej. Cov tshuaj tsuag slurry ntxuav cov sulfur-muaj flue gas hauv cheeb tsam no. Qhov siab txaus ntawm qhov chaw nqus tau ua kom muaj qhov siab dua desulfurization. Qhov siab dua qhov siab, qhov qis dua qhov yuav tsum tau ua twj tso kua mis ntws raws li qhov yuav tsum tau ua ntawm desulfurization tus nqi.

Lub cheeb tsam ntawm lub absorber yog txhais raws li:

(1) Txau ntauwd: 1.5m hauv qab nozzle qis tshaj plaws mus rau qhov chaw qhov hluav taws xob ntawm lub siab tshaj plaws nozzle.

(2) Cov kua kab ntauwd: los ntawm qhov hluav taws xob ntawm qhov qis tshaj plaws mus rau 0.5m saum toj ntawm cov kua dej siab tshaj plaws thaum tag nrho cov slurry ncig twj tso kua mis khiav.

Lub absorber yog cov cuab yeej tseem ceeb ntawm flue gas desulfurization system. Nws yuav tsum muaj qhov chaw loj ntawm cov roj-kua sib cuag, cov tshuaj tiv thaiv roj zoo, kev poob siab me me. Nws yog haum rau loj-muaj peev xwm flue gas kev kho mob. Cov kauj ruam tseem ceeb hauv qab no tau ua tiav hauv cov cuab yeej no:

① Kev nqus cov pa phem hauv kev ntxuav slurry;

② Kev sib cais ntawm cov roj flue thiab ntxuav slurry;

③ Neutralization ntawm slurry;

④ Oxidation ntawm cov khoom nruab nrab nruab nrab rau hauv gypsum;

⑤ Gypsum crystallization.

III. Absorber Composition

Lub absorber feem ntau muab faib ua lub tog raj kheej, lub qhov hluav taws xob flue thiab lub qhov hluav taws xob flue hauv cov qauv. Lub qhov hluav taws xob hluav taws xob thiab qhov hluav taws xob yog pw hauv nruab nrab ntawm lub absorber thiab nyob rau sab saum toj ntawm lub absorber sib raug zoo nyob rau hauv raug. Lub tog raj kheej absorber tuaj yeem muab faib ua lub pas dej slurry, ib txheej tshuaj tsuag thiab thaj chaw demisting hauv kev ua haujlwm. Lub pas dej slurry yog nyob rau hauv qis qis ntawm lub absorber inlet feem ntau, thiab cov tshuaj tsuag txheej thiab lub demister yog nyob nruab nrab ntawm lub flue gas inlet thiab qhov hluav taws xob. Lub qhov hluav taws xob flue ntawm lub absorber tuaj yeem yog lub qhov hluav taws xob sab saum toj lossis lub qhov hluav taws xob kab rov tav.

Cov pa tshuaj tsuag thaj chaw nta cov txheej txheej thiab cov nozzles thiab lwm yam khoom siv. Nyob ntawm cov txheej txheem desulfurization, thaj chaw tshuaj tsuag ntawm qee qhov nqus nqus yuav kuj yuav nruab nrog cov tais, Venturi rods thiab lwm yam khoom siv.

IV. Kev tsim qauv tsim rau Absorber

(1) Calcium-sulfur ratio yuav tsum tsis txhob ntau tshaj 1.05.

(2) Thaum siv lub hauv-ntauwd demister, lub flue roj tshaj tawm ntawm lub absorber nyob rau hauv tsim tej yam kev mob yuav tsum tsis txhob ntau tshaj 3.8m / s, uas yuav tsum tau soj ntsuam los ntawm ib tug Coriua olisfqisntsiber.

(3) Ib qho kev sib xyaw ua ke ntawm lub pas dej slurry thiab ntauwd lub cev yog nyiam.

(4) Lub sijhawm nyob ntawm slurry ncig yuav tsum tsis pub tsawg tshaj 4 min, thiab cov kua kem ntauwd yuav tsum tsis pub tsawg tshaj 2.5 min.

(5) Lub nplhaib tuav dej thiab lub hau los nag yuav tsum tau muab tso rau ntawm qhov sib tshuam ntawm qhov nqus dej nqus dej thiab cov phab ntsa ntsug ntawm lub nqus dej.

(6) Lub inlet flue ntawm cov tshuaj tsuag npliag pej thuam yuav tsum tau teem nyob rau hauv ib tug oblique downward nkag. Thaum txoj kev npaj nkag mus rau kab rov tav, nws yuav tsum tau ua kom ntseeg tau tias qhov qis tshaj ntawm qhov flue ntawm thawj lub luj tshib nyob ib sab ntawm lub absorber inlet yog 1.5 mus rau 2m siab dua li cov dej ua haujlwm li qub ntawm lub pas dej da dej absorber slurry. Lub inlet flue ntawm cov kua kem ntauwd tuaj yeem npaj rau hauv kab rov tav lossis ntsug nkag.

(7) Qhov kev ncua deb ntawm cov khaubncaws sab nraud povtseg ntawm cov tshuaj tsuag khoob yuav tsum tsis pub tsawg tshaj 1.8m.

(8) Cov tshuaj tsuag saum toj kawg nkaus ntawm lub qhov khoob khoob yuav tsum tsuas yog txau mus rau hauv qab, thiab qhov nrug ntawm qhov qis tshaj ntawm cov demister yuav tsum tsis pub tsawg dua 2m.

(9) Rau cov tshuaj tsuag yees uas nruab nrog cov tais ntxeem tau thiab cov tabulators, cov tais ntxeem tau thiab cov nplais tabulator yuav tsum tau ua los ntawm cov khoom siv hlau los tiv thaiv corrosion.

(10) Thaum cov pa roj cua kub thiab cov khoom siv hluav taws xob sib pauv tsis tau teeb tsa, kev xaiv ntawm cov qauv tsim xws li qhov khoob ntauwd ntws tus nqi, kua-gas piv, thiab slurry cov ntsiab lus ntawm lub absorber yuav tsum coj mus rau hauv tus account qhov yuav tsum tau ntawm desulfurization efficiency thiab cov yam ntxwv xws li txo tus nqi ntawm net flue gas droplets nqa.

(11) Tus tsim ntawm lub absorber yuav tsum tau yoog raws li tus qauv tsim ntawm boiler load thiab coal sulfur ntsiab lus. Ib tug ntsetsis-nuclearslurry ceev meterlos ntawmLonnmeterpom zoo kom saib xyuas qhov ntom ntawm limestone thiab gypsum ntawm qhov hluav taws xob kom lav qhov txaus desulfurization tus nqi.