Silicon Carbide FGD Nozzle yekubvisa sulfurization mumagetsi

Maburi eFlue Gas Desulfurization (FGD) Absorber Nozzles
Kubviswa kwesulfur oxides, inowanzonzi SOx, kubva mumagasi eutsi uchishandisa alkali reagent, senge slurry yakanyorova ye limestone.

Kana mafuta efossil akashandiswa mukuita kwekupisa kuti ashandise mabhoyila, maovheni, kana zvimwe zvishandiso, ane mukana wekuburitsa SO2 kana SO3 sechikamu chegasi rinobuda mumhepo. Aya masulfur oxides anosangana nyore nyore nezvimwe zvinhu kuti agadzire chinhu chinokuvadza senge sulfuric acid uye ane mukana wekukanganisa hutano hwevanhu nenharaunda. Nekuda kwemigumisiro iyi, kudzora chinhu ichi mumagasi emvura chikamu chakakosha chemagetsi anopfurwa nemarasha uye mamwe mashandisirwo emaindasitiri.

Nekuda kwekukukurwa kwevhu, kudzikira kwemvura, uye kuungana kwemvura, imwe yenzira dzakavimbika dzekudzora kuburitswa kwemhepo uku inzira yekubvisa sulfurization yemhepo yakavhurika (FGD) uchishandisa limestone, lime yakanyungudutswa, mvura yegungwa, kana imwe mhinduro yealkaline. Manotsi ekupfapfaidza anokwanisa kuparadzira slurry idzi zvinobudirira uye zvakavimbika muzvigadziko zvekunyudza mvura. Nekugadzira mapatani akafanana emadonhwe akakura zvakanaka, manotsi aya anokwanisa kugadzira nzvimbo inodiwa kuti inyudzwe zvakanaka uku achideredza kupinza kwemvura yekukwesha mugasi remvura.

Kusarudza FGD Absorber Nozzle:
Zvinhu zvakakosha zvekufunga nezvazvo:

Kukwesha huwandu hwemedia uye viscosity
Saizi yedonhwe inodiwa
Saizi chaiyo yemadonhwe emvura yakakosha pakuona kuti mvura inonaya zvakanaka
Zvinhu zvemumuromo
Sezvo gasi rinobuda mumhepo richiwanzo paradza uye mvura inokwesha inowanzova matope ane zvinhu zvakasimba zvakawanda uye hunhu hwekukwesha, kusarudza zvinhu zvakakodzera zvinodzivirira ngura uye zvinodzivirira kupfekwa kwakakosha.
Kudzivirira kuvharika kwemumuromo
Sezvo mvura yekukwesha ichiwanzova matope ane zvinhu zvakasimba zvakawanda, kusarudza muromo wemuromo maererano nekusavharika kwawo kwakakosha.
Maitiro ekupfapfaidza nemuromo uye nzvimbo yacho
Kuti tive nechokwadi chekuti gasi rinopinda zvakanaka, zvakakosha kuti rifukidzwe zvakakwana pasina kuyambuka uye nguva yakakwana yekugara.
Saizi yekubatanidza bundu uye rudzi
Kuyerera kwemvura kunodiwa pakukwesha
Kudonhedzwa kwedzvinyiriro (∆P) kuripo pamuromo wemuromo
∆P = kumanikidzwa kwemuchina pakupinda kwemuchina - kumanikidzwa kwemuchina kunze kwemuchina
Mainjiniya edu ane ruzivo anogona kukubatsira kuona kuti ndeipi nozzle ichaita basa rako sezvinodiwa neruzivo rwekugadzira kwako
Mashandisirwo uye Mashandisirwo eFGD Absorber Nozzle:
Mafekitori emagetsi emarasha nezvimwe zvinhu zvefossil
Nzvimbo dzekuchenesa mafuta
Mapombi ekupisa marara emuguta
Zvitofu zvesimende
Zvishandiso zvesimbi

Datasheet yeSiC Material

Dambudziko neLime/Limestone

Sezvakaratidzwa muMufananidzo 1, masisitimu eFGD anoshandisa lime/limestone forced oxidation (LSFO) anosanganisira masisitimu matatu makuru:

• Kugadzirira, kubata uye kuchengeta reagent
• Mudziyo unonyudza
• Kubata marara nezvimwe zvinhu

Kugadzirira reagent kunosanganisira kutakura limestone yakapwanywa (CaCO3) kubva panzvimbo yekuchengetera kuenda kutangi rekudyisa rakavhundutswa. Slurry ye limestone inobuda inobva yapombwa kuenda kumudziyo unonyungudutsa pamwe chete negasi reboiler flue nemhepo inonyungudutsa. Manozzle ekupfapfaidza anoburitsa madonhwe madiki e reagent ayo anobva ayerera achipesana negasi reflue rinouya. SO2 iri mugasi reflue inosangana ne reagent ine calcium yakawanda kugadzira calcium sulfite (CaSO3) neCO2. Mhepo inounzwa mu absorber inokurudzira oxidation yeCaSO3 kuenda kuCaSO4 (dihydrate form).

Maitiro ekutanga eLSFO ndeaya:

CaCO3 + SO2 → CaSO3 + CO2 · 2H2O

Doro rinosanganiswa nemvura rinoungana pasi pemushonga unonyungudutsa mvura uye rinozodzokororwa pamwe chete nechinhu chitsva chinodzokororwa kuenda kuma "spray nozzle headers". Chikamu chemvura inodzokororwa inodzokororwa kuenda kune system yekubata marara/zvinobva muzvinhu, iyo inowanzo kuve nema "hydrocyclones", ma "drum" kana ma "belt filters", uye tangi rinobata mvura yakasviba/doro rakavhundutswa. Mvura yakasviba inobva mutangi rinobata inodzokororwa kudzokera kutangi re "limestone reagent feed" kana ku "hydrocyclone" uko mvura inobuda inobviswa semvura.

Maitiro Ekukwesha Akajairika eLime/Lime Forced Oxidatin Wet Scrubbing

Masisitimu eLSFO akanyorova anowanzo kwanisa kubvisa SO2 zvakanaka ne95-97 muzana. Zvisinei, kusvika padanho riri pamusoro pe97.5 muzana kuti usvike pazvinodiwa zvekudzora utsi, zvakaoma, kunyanya kumiti inoshandisa marasha ane sarufa yakawanda. Magnesium catalysts inogona kuwedzerwa kana limestone inogona kusanganiswa kuita lime yakakura (CaO2), asi shanduko dzakadai dzinosanganisira mimwe michina yemiti uye mari yekushanda nesimba. Semuenzaniso, kusanganisa calcium ne lime kunoda kuiswa kwekiln kiln yakasiyana. Zvakare, lime inogadziriswa nyore nyore uye izvi zvinowedzera mukana wekuumbwa kwe scale deposit mu scrubber.

Mutengo we calcination uchishandisa lime kiln unogona kuderedzwa nekupinza limestone zvakananga muboiler furnace. Munzira iyi, lime inogadzirwa muboiler inotakurwa ne flue gas mu scrubber. Matambudziko angangoitika anosanganisira kusvibiswa kweboiler, kukanganiswa nekupisa, uye kusashanda kwe lime nekuda kwekutsva zvakanyanya muboiler. Uyezve, lime inoderedza tembiricha yemvura yakanyungudutswa mumaboiler ane marasha, zvichikonzera kuunganidzwa kwakasimba kwaisazoitika dai zvisina kudaro.

Marara emvura anobva muLSFO anowanzo endeswa kumadhamu ekudzikamisa mvura pamwe chete nemarara emvura anobva kune dzimwe nzvimbo mugwenya remagetsi. Mvura inoyerera yeFGD inogona kuzadzwa nesulfite nesulfate compounds uye zvinhu zvinokanganisa nharaunda zvinowanzo deredza kuburitswa kwayo munzizi, hova kana dzimwe nzira dzemvura. Uyewo, kudzoreredza mvura yakasviba/doro kudzokera kuscrubber kunogona kutungamira mukuunganidzwa kwemunyu wesodium, potassium, calcium, magnesium kana chloride. Mhando idzi dzinogona kuzopedzisira dzaita crystallize kunze kwekunge ropa rakawanda rapihwa kuti munyu wakanyungudutswa urambe wakaderera. Dambudziko rekuwedzera nderekuti marara akaoma anononoka kugadzikana, izvo zvinoita kuti pave nekudiwa kwemadziva makuru, ane huwandu hwakawanda hwekudzikamisa mvura. Mumamiriro ezvinhu akajairika, layer yakagadzikana mudziva rekudzikamisa mvura inogona kuva ne50 muzana kana kupfuura chikamu chemvura kunyangwe mushure memwedzi yakati wandei yekuchengetwa.

Calcium sulfate inotorwa kubva mu absorber recycle slurry inogona kunge yakawanda mu limestone ne calcium sulfite ash zvisina kugadziriswa. Izvi zvinogona kudzivirira calcium sulfate kuti isatengeswe se synthetic gypsum yekushandisa mukugadzira wallboard, plaster, uye simende. Limestone isina kugadziriswa ndiyo tsvina inowanikwa mu synthetic gypsum uye zvakare tsvina inowanikwa mu natural (yakagadzirwa) gypsum. Kunyange zvazvo limestone pachayo isingakanganisi hunhu hwezvigadzirwa zve wallboard end, hunhu hwayo hwekukwesha hunokonzera matambudziko ekupfeka pamichina yekugadzirisa. Calcium sulfite kusvibiswa kusingadiwe mune chero gypsum sezvo saizi yayo diki inokonzera matambudziko ekukwesha uye mamwe matambudziko ekugadzirisa akadai sekusuka makeke nekudonhedza mvura.

Kana zvinhu zvakasimba zvakagadzirwa muLSFO zvisingatengeswi mukutengeserana segypsum yakagadzirwa, izvi zvinokonzera dambudziko guru rekurasa marara. Kune boiler ye1000 MW inoshandisa marasha esulfur e1 muzana, huwandu hwegypsum hunosvika matani 550 (pfupi) pazuva. Kune imwe fekitori inoshandisa marasha esulfur e2 muzana, kugadzirwa kwegypsum kunowedzera kusvika matani angangoita 1100 pazuva. Kuwedzera matani angangoita 1000 pazuva ekugadzira ash, izvi zvinoita kuti marara akasimba ave matani angangoita 1550 pazuva e1 muzana yesarufa uye matani 2100 pazuva e2 muzana yesarufa.

Zvakanakira EADS

Imwe nzira yehunyanzvi yakasimbiswa panzvimbo peLSFO scrubbing inotsiva limestone neammonia senzira yekubvisa SO2. Zvinhu zvakasimba zvinogayiwa, kuchengetwa, kubata uye kutakura muLSFO system zvinotsiviwa nematangi akareruka ekuchengetera ammonia yemvura kana isina mvura. Mufananidzo 2 unoratidza flow schematic yeEADS system yakapihwa neJET Inc.

Ammonia, gasi remvura inoyerera, mweya unooxidating uye mvura inoyerera zvinopinda mumuchina une maburi akawanda ekupfapfaidza. Maburi aya anogadzira madonhwe madiki e reagent ine ammonia kuti ave nechokwadi chekuti reagent iri kusangana negasi remvura rinopinda zvichienderana nemaitiro anotevera:

(1) SO2 + 2NH3 + H2O → (NH4)2SO3

(2) (NH4)2SO3 + ½O2 → (NH4)2SO4

SO2 iri mu flue gas stream inodyidzana neammonia iri muchikamu chepamusoro chemudziyo kuti igadzire ammonium sulfite. Pasi pemudziyo unobvoora inoshanda setangi re oxidation uko mhepo inooxidation ammonium sulfite kuita ammonium sulfate. Ammonium sulfate solution inobuda inopombwa kudzokera kuma spray nozzle headers pamatanho akasiyana-siyana mu absorber. Gasi re flue risati rasvuurwa rinobuda pamusoro pe absorber, rinopfuura nemu demister inounganidza madonhwe emvura akaputirwa uye rinobata zvidimbu zvidiki.

Kusangana kweammonia neSO2 uye sulfite oxidation ku sulfate zvinoita kuti pave nekushandiswa kwakanyanya kwe reagent. Makirogiramu mana e ammonium sulfate anogadzirwa pakirogiramu yega yega ye ammonia inodyiwa.

Sezvineiwo nemaitiro eLSFO, chikamu chemvura inodzokororwa/inodzokororwa inogona kubviswa kuti igadzire chinhu chinotengeswa. Muhurongwa hweEADS, mhinduro yechigadzirwa chinotorwa inopombwa kuenda kuhurongwa hwekudzokororwa kwemvura ine hydrocyclone ne centrifuge kuti isanganise ammonium sulfate chigadzirwa chisati chaomeswa uye kupakishwa. Zvese zvinwiwa (hydrocyclone overflow ne centrifuge centrate) zvinodzoserwa kutangi reslurry uye zvozoiswazve mumvura inodzokororwa yeammonium sulfate.

• Masisitimu eEADS anopa simba rekubvisa SO2 zvakanyanya (>99%), izvo zvinoita kuti zviteshi zvemagetsi zvinoshandisa marasha zvive nyore kusanganisa marasha esulfure akachipa uye akawandisa.
• Kunyange zvazvo masisitimu eLSFO achigadzira matani 0.7 eCO2 patani yega yega yeSO2 inobviswa, maitiro eEADS haabudisi CO2.
• Nekuti lime ne limestone hazvishande zvakanyanya kana tichienzanisa neammonia yekubvisa SO2, kushandiswa kwemvura yakawanda uye simba rekupomba zvinodiwa kuti kufambiswe kwemvura kwakakwira. Izvi zvinoguma nemitengo yakakwira yekushanda kwemasisitimu eLSFO.
• Mari inoshandiswa pakugadzira masisitimu eEADS yakafanana neyayo yekuvaka sisitimu yeLSFO. Sezvambotaurwa pamusoro apa, kunyangwe sisitimu yeEADS ichida michina yekugadzira nekuisa ammonium sulfate kubva pazvigadzirwa, nzvimbo dzekugadzirira reagent dzakabatana neLSFO hadzidiwi pakugaya, kubata nekutakura.

Chinhu chinonyanya kushamisa cheEADS kubvisa marara emvura neakaoma. Tekinoroji yeEADS inzira yekuburitsa mvura isina tsvina, zvinoreva kuti hapana mushonga wemvura yakasviba unodiwa. Chigadzirwa cheammonium sulfate chakasimba chinotengeswa zviri nyore; ammonia sulfate ndiyo fetiraiza nefetiraiza zvinonyanya kushandiswa pasi rose, nekukura kwemusika pasi rose kunotarisirwa kusvika muna 2030. Pamusoro pezvo, nepo kugadzirwa kweammonium sulfate kuchida michina ye centrifuge, dryer, conveyor uye packing, zvinhu izvi hazvisi zvepamutemo uye zvinowanikwa mumusika. Zvichienderana nemamiriro ehupfumi nemamiriro emusika, fetiraiza yeammonium sulfate inogona kubhadhara mari yekubvisa flue gas kubva kuammonia uye inogona kupa purofiti yakakura.

Maitiro Ekubvisa Sulphurization Anoshanda Anoshanda

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