WET FLUE GESI KUSVIRWA NELIME/LIMESTONE SLURRY

Features

• Desulphurisation inoshanda pamusoro pe99% inogona kuwanikwa
• Kuwanikwa kweinopfuura 98% kunogona kuwanikwa
• Injiniya haina kutsamira pane chero nzvimbo chaiyo
• Marketable product
• Unlimited part load operation
• Nzira ine nhamba huru yemareferensi munyika

Maitiro Matanho

Matanho akakosha eiyi wet desulphurisation nzira ndeaya:

• Absorbent kugadzirira uye dosing
• Kubviswa kweSOx (HCl, HF)
• Dewatering uye kugadzirisa kwechigadzirwa

Munzira iyi, limestone (CaCO3) kana kuti quicklime (CaO) inogona kushandiswa seinomwisa. Kusarudzwa kwekuwedzera iyo inogona kuwedzerwa yakaoma kana se slurry inoitwa pamusana peprojekti-yakananga muganhu mamiriro. Kubvisa sulfur oxides (SOx) uye zvimwe zvinoumba acidic (HCl, HF), iyo flue gasi inounzwa mukubata kwakasimba ne slurry ine mukuwedzera munzvimbo yekunyura. Neiyi nzira, iyo yakakura kwazvo inogoneka nzvimbo yepasi inoitwa kuti iwanikwe kune kuwanda kutamiswa. Munzvimbo yekunyura, iyo SO2 kubva muflue gasi inopindirana neinomwisa kuita calcium sulphite (CaSO3).

Iyo limestone slurry ine calcium sulphite inounganidzwa mumudziyo wemvura. Irimestone inoshandiswa kuchenesa magasi eflue inoramba ichiwedzerwa kune inopinza sump kuti ive nechokwadi chekuti kuchenesa simba rekutora kunoramba kuripo. Iyo slurry inozopombwa munzvimbo yekunyura zvakare.

Nekuputira mhepo mukati memushonga we sump, gypsum inoumbwa kubva ku calcium sulphite uye inobviswa kubva pakuita sechikamu che slurry. Zvichienderana nezvinodiwa zvemhando yechigadzirwa chekupedzisira, kumwe kurapwa kunoitwa kugadzira gypsum inotengeswa.

Plant Engineering

Mune wet flue gas desulphurisation, yakavhurika yekupfapfaidza shongwe yekunyudza yakakunda iyo yakakamurwa kuita maviri makuru nzvimbo. Iyi ndiyo nzvimbo yekunyura yakazarurwa kune flue gasi uye inonyudza sump, umo limestone slurry inobatwa uye inounganidzwa. Kuti udzivise dhipoziti mumudziyo unopinza, slurry inomiswa nenzira yekusanganisa nzira.

Iyo flue gasi inoyerera ichipinda muabsorber pamusoro peyero yemvura uye ipapo kuburikidza neabsorption zone, iyo inosanganisira kupindirana kwemazinga ekupfapfaidza uye mhute inobvisa.

Limestone slurry yakasvetwa kubva paabsorbeer sump inopfapfaidzwa zvakanaka-ikozvino uye inopesana-ikozvino kune flue gasi kuburikidza nemazinga ekupfapfaidza. Kurongeka kwemanozzles mushongwe yekupfapfaidza kwakakosha kukosha pakubvisa kugona kweanonyudza. Flow optimization saka inonyanya kukosha. Mune mhute inobvisa, madonhwe anotakurwa kubva kunzvimbo yekunyura neflue gasi anodzoserwa kuita. Pakubuda kwemucherechedzo, gasi rakachena rakazara uye rinogona kubviswa zvakananga kuburikidza neshongwe inotonhorera kana nyoro. Optionally gasi rakachena rinogona kupisa uye kuendeswa kune yakaoma stack.

Iyo slurry yakabviswa kubva paabsorber sump inotanga kucheneswa nemvura nenzira yemahydrocyclone. Kazhinji iyi pre-concentrated slurry inowedzerwa mvura kuburikidza nekusefa. Mvura, inowanikwa kubva pakuita uku, inogona kudzorerwa zvakanyanya kune inopinza. Chikamu chiduku chinobviswa mukutenderera kwemhepo nenzira yemvura yakasvibiswa inoyerera.

Flue gasi desulphurisation muzvirimwa zvemaindasitiri, zvidyarwa zvemagetsi kana zvidyarwa zvekupisa marara zvinoenderana nemanozzles anovimbisa kunyatsoshanda kwenguva yakareba uye anoshingirira zvakanyanya hutsinye mamiriro ekunze. Iine masisitimu ayo emhuno, Lechler inopa mhinduro dzehunyanzvi uye dzakanangana nekushandisa dzespray scrubbers kana sprayer absorbers pamwe nemamwe maitiro muflue gas desulphurisation (FGD).

Wet desulphurization