I-Silicon Carbide FGD nozzle yokusungula ukusungula isitshalo samandla

I-Flue gesi Deselfurization (FGD) Chorber nozzles
Ukususwa kweSulfur oxides, okuvame ukubizwa ngokuthi yi-sox, kusuka kumagesi aqeda amandla usebenzisa i-alkali reagent, efana ne-limestone elimanzi.

Lapho kusetshenziswa ama-fossil fuels ngezinqubo zokuvula ukuze aqalise ama-boilers, izinsimbi, noma eminye imishini anawo amandla okukhulula i-SO2 noma i-SO3 njengengxenye yegesi yokuphelelwa yisikhathi. Lawa ma-sulphuro oxides asabela kalula nezinye izinto zokwakha i-compander eyingozi efana ne-sulfuric acid futhi anamandla okuthinta kabi impilo yabantu kanye nemvelo. Ngenxa yale miphumela engaba khona, ukulawula kwalesi sihlanganisi kumagesi we-flue kuyingxenye ebalulekile yamalahle amalahle afiswe ama-coal izitshalo zamandla kanye nezinye izinhlelo zezimboni.

Ngenxa yokuguguleka, ukuxhumeka, kanye nokukhathazeka kwakhiwa, enye yezinhlelo ezithembekile zokulawula lokhu kukhishwa i-evulekile ye-Plue WET Suse Superfurization (FGD) usebenzisa i-limestone, i-hydrate lime, amanzi olwandle, noma enye isisombululo se-alkali. Ama-nozzles wokufafaza ayakwazi ukusabalalisa ngempumelelo nalokhu okuthembekile kokuhlambukela emibhoshongweni yokumunca. Ngokwakha amaphethini afanayo amaconsi asayizi alinganiselwe, lezi ze-nozzles ziyakwazi ukudala ngempumelelo indawo engaphezulu edingekayo ukuze kuthathwe imali efanele ngenkathi kunciphisa ukufakwa kwesisombululo sokukhuhla igesi.

Ukukhetha i-FGD Assorber Nozzle:
Izici ezibalulekile okufanele zicatshangelwe:

Ukuklwebheka izinsolo zemidiya nokubonakala
Usayizi we-Droplet odingekayo
Usayizi we-Droplet ofanele ubalulekile ekuqinisekiseni amanani afanele amunny
Impahla ye-nozzle
Njengoba igesi ye-flue ivame ukulimala futhi uketshezi olukhohlisayo luvame ukuba lukhuni olunama-solids aphezulu kanye nezinto ezinolaka, ukhetha ukugqwala okufanele kanye nokugqoka okungaqondakali kubalulekile
Ukumelana ne-Nozzle Clogi
Njengoba uketshezi olukhohlisayo luvame ukuba yi-slurry enokuqukethwe okuphezulu okuphezulu, ukukhethwa kwe-nozzle maqondana nokumelana nokuqina kubalulekile
Iphethini yokufafaza i-nozzle nokubekwa
Ukuze uqinisekise ukuhlanganiswa okuphelele okuphelele kokusakazwa kwegesi ngaphandle kwe-bypass kanye nesikhathi esanele sokuhlala kubalulekile
Usayizi wokuxhuma kwe-nozzle nohlobo
Kudingeka ukugcwala kwamanani okugeleza koketshezi
I-Pressure Drop Drop (ΔP) ngaphesheya kwe-nozzle
Δp = ukucindezela kokuhlinzekwa kwe-nozzle inlet - Ingcindezi yenqubo ngaphandle kwe-nozzle
Onjiniyela bethu abanolwazi bangasiza ekuboneni ukuthi yiliphi i-nozzle elizokwenza njengoba kudingeka ngemininingwane yakho yokuklama
I-FGD Conf Abzzle I-Nozzle evamile isebenzisa kanye nezimboni:
Amalahle nezinye izitshalo zamandla kaphethiloli
Ukuhlanza uPetroleum
Ama-moninerators kamasipala
Amakhilomitha kasimende
Ama-Metal Smelters

I-datasheet ebonakalayo ye-SIC

Izingqinamba nge-lime / limestone

Njengoba kukhonjisiwe kuMdwebo 1, amasistimu we-FGD asebenzisa i-lime / i-limestone ephoqelelwe i-oxidation (LSFO) ifaka amasistimu amathathu amancane:

• Ukulungiswa kweReagent, ukuphatha nokugcina
• Umkhumbi omuhle
• Imfucuza kanye nokuphanga okusebenzayo

Ukulungiswa kweReagent kuqukethe ukudlulisela i-limestone echotshoziwe (i-CACO3) kusuka ku-silo yesitoreji kuya ethangini lokuphakelayo elihlaselwe. I-slurry ye-limestone ephumayo bese idonswa emkhunjini ongeyena kanye ne-boiler flue gesi kanye nomoya oxidizizing air. I-Spray nozzles iletha amaconsi amahle we-reagent olapho-ke ugeleza okumele abe negesi engenayo. I-SO2 kugesi ye-flue iphendula nge-reagent ye-calcium ecebile ukwakha i-calcium sulfite (Case3) ne-CO2. Umoya owethulwe ku-Absorber ukhuthaza i-oxidation of Case3 kuCase4 (Dihydrate Form).

Ukusabela okuyisisekelo kwe-LSFO yile:

I-CACO3 + SO2 → I-CASO3 + CO2 ·H2O

I-slurry ehlanganisiwe iqoqa ezansi kwe-absorber futhi ngemuva kwalokho iphinde isebenze kabusha kanye ne-reagent entsha ebuyela emuva kwizihloko ze-nozzle. Ingxenye yokusakaza kabusha ihoxiswa ohlelweni lokuphamba imfucuza / lwe-Byproduct, oluqukethe ama-hydrocyclones, izigubhu noma izihlungi zebhande, kanye nethangi elihlaselwe ngu-wastewater. Amanzi angcolile avela ethangi lokubamba abuyele emuva ethangini le-limestone reagent feed tank noma ku-hydrocyclone lapho okuchichimayo kususwa khona njenge-whefluent.

I-Lime / Limestone evamile ye-Oxidatin Wet Scrubbing Process Schematic

Izinhlelo ezimanzi ze-LSFO ngokuvamile zingafinyelela ukusebenza kahle kwamaphesenti angama-95-97. Ukufinyelela amazinga ngenhla kwamaphesenti angama-97,5 ukuze kuhlangatshezwane nezidingo zokulawula ukuphuma kwemiphumela, kunzima, ikakhulukazi izitshalo ezisebenzisa amalahle aphezulu we-sulfur. I-Magnesium Catalysts ingangezwa noma i-limestone ingabalwa ku-lime ephakeme yokuvuselela i-lime (CAO), kepha ukuguqulwa okunjalo kubandakanya imishini yezitshalo eyengeziwe kanye nezindleko ezihambisana namandla. Isibonelo, ukuklanywa ku-lime kudinga ukufakwa kwe-lime cling ehlukile. Futhi, i-lime inembele kalula futhi lokhu kwandisa amandla ekwehlukanisweni kwediphozithi yediphozi esikalini ku-scrubber.

Izindleko zokuba ne-cargenage nge-lime kiln zingancishiswa ngokujova ngokuqondile i-limestone esithandweni se-boiler. Ngale ndlela, kukhiqizwa ku-boiler ku-boiler kuthathwe ngegesi ethambile ku-scrubber. Izinkinga ezingaba khona zifaka i-boiling ethambile, ukuphazamiseka ngokudluliswa kokushisa, kanye nokungasebenzi kwe-lime ngenxa yokubeka ngokweqile ku-boiler. Ngaphezu kwalokho, i-lime inciphisa izinga lokushisa lomlotha oncibilikisiwe kuma-boilers amalahle oboshwe, okuholela kumadiphozithi aqinile angenzeki.

Ukungcola okuwuketshezi kwinqubo ye-LSFO kuqondiswe kumachibi okuqina kanye nokungcola okuwuketshezi kusuka kwenye indawo esitshalweni samandla. I-WET FGD uketshezi effantle angagcwaliswa nge-sulfite ne-sulfate compleves kanye nokucatshangelwa kwemvelo ngokuvamile kukhawulela ukukhululwa kwayo emifuleni, emifuleni noma komunye amanzi. Futhi, ukuvumelanisa kabusha kwamanzi angcolile / utshwala emuva ku-scrubber kungaholela ekusungulweni kwe-sodium ecibilikisiwe, i-potassium, calcium, i-magnesium noma usawoti we-chloride. Lezi zinhlobo zingagcina zishabalale ngaphandle kokuthi kunikezwe ukopha ngokwanele ukuze kugcinwe ukugxila kosawoti okuncibilikisiwe ngezansi kwe-saturnation. Inkinga eyengeziwe yisilinganiso sokuxazulula kancane semfucuza ye-solids, ephumela esidlweni samachibi amakhulu, aphezulu wokuqina wevolumu. Ezimweni ezijwayelekile, ungqimba oluxazululiwe echibini lokuzinza lungaqukatha amaphesenti angama-50 noma ngaphezulu kwesigaba se-liquid ngisho nangemva kwezinyanga ezimbalwa zokugcina.

I-calcium sulfate yatholakele ekuvuseleleni kabusha kwe-absorbercle slurry ingaba phezulu ku-limestone ne-calcium sulfite ash. Lezi zingcoliso zingavimba i-calcium sulfate ukuthi ithengiswe njenge-gypsum yokwenziwa ukuze isetshenziswe ebhodini elallboard, udaka kanye nokukhiqizwa kosenti. I-limestone engafanele ukungcola okuvelele okutholakala ku-gypsum yokwenziwa futhi kungukungcola okuvamile ku-gypsum yemvelo (izimayini). Ngenkathi i-limestone ngokwayo ayiphazamisi izakhiwo zemikhiqizo yokugcina ye-wallboard, izakhiwo zayo ezivelelayo ziveza izindaba zokugqoka zokufaka imishini. I-calcium sulfite ingukungcola okungafuneki kunoma yiliphi i-gypsum njengosayizi wayo omuhle wezinhlayiyana libeka izinkinga zokulinganisa nezinye izinkinga zokucubungula njengokugeza ikhekhe futhi azokhipha ikhekhe.

Uma ama-solids akhiqizwa kwinqubo ye-LSFO ayithengiswa ngokuhweba njenge-gypsum yokwenziwa, lokhu kungenza inkinga enkulu yokulahla imfucuza. Ukuze uthole i-1000 mw boiler edubula ama-sulfur amalahle we-sulfur, inani le-gypsum licishe libe ngamathani angama-550 (amafushane) / ngosuku. Ukuze uthole isitshalo esifanayo esidubula ama-sulfur amalahle ama-sulfur, ukukhiqizwa kwe-gypsum kukhuphuka cishe kumathani / ngosuku / ngosuku. Ukungeza amathani angu-1000 / usuku lokundiza umlotha we-fly Ash, lokhu kuletha i-tonthage eqinile yemfucumfucu emathani acishe abe ngu-1550 amathani ama-sulfure amalahle kanye namathani ama-sulfure angu-21%.

Izinzuzo ze-EADS

I-Profen Technology Enye indlela yokuhlanza i-LSFO ithatha indawo ye-limestone ne-ammonia njenge-realent yokususwa kuka-SO2. Ukugaya okuqinile kwe-realent, ukugcinwa, ukuphatha kanye nezinto zokuhamba ohlelweni lwe-LSFO kuthathelwa indawo amathangi okugcina alula we-ammonia anamanzi amaningi noma anhydrous ammonia. Umdwebo 2 ukhombisa i-flow schematic yohlelo lwe-EADS olunikezwe yiJet Inc.

I-Amonia, i-flue gesi, umoya oxidizing nomoya kanye nenqubo yokufaka amanzi afaka i-absorber equkethe amazinga amaningi ama-nozzles wokufafaza. Ama-nozzles akhiqiza amaconsi amahle e-ammonia equkethe i-realent yokuqinisekisa ukuthintana okusondelene ne-reagent ngegesi engenayo ngokuya ngokuphendula okulandelayo:

(1) So2 + 2nh3 + H2O → (NH4) 2SO3

(2) (NH4) 2SHA3 + ½O → (NH4) 2SO4

I-SO2 ku-Flue Stream isabela nge-ammonia engxenyeni engenhla yesikejana ukukhiqiza i-ammonium sulfite. Phansi komkhumbi we-Absorber ukhonza njengethangi le-oxidation lapho umoya oxidium sulfite ku-ammonium sulfate. Isixazululo se-ammonium sulfate ephumela siphindwa emuva ku-Spray Nozzle Heaters emazingeni amaningi e-Absorber. Ngaphambi kwegesi ekhuhlekile ephuma phezulu kwe-absorber, idlula emcemekeni ohlanganisa noma yiziphi amaconsi afakiwe afakiwe futhi athumbise ama-conlines amahle.

Ukusabela kwe-ammonia nge-so2 kanye ne-axidation ye-sulfite ku-sulfate kufinyelela isilinganiso esiphakeme sokusetshenziswa kwe-reagent. Kukhiqizwa amakhilogremu amane we-ammonium sulfate kuwo wonke amakhilogremu we-ammonia adliwe.

Njengasezinhlelweni ze-LSFO, ingxenye yokusakazwa kabusha komkhiqizo / umkhiqizo Ohlelweni lwe-EADS, isixazululo somkhiqizo we-akeff sigcwele ohlelweni lokubuyiselwa kwama-solids oluqukethe i-hydrocyclone ne-centrifuge ukugxilisa umkhiqizo we-ammonium sulfate ngaphambi kokomiswa nokupakisha. Zonke iziphuzo (i-hydrocyclone ukugcwala kanye ne-centrifuge centrate) ziqondiswe emuva ethangini elinotshani bese liphinde langeniswa kwi-ablorber ammonium sulfate recycle Stream.

• Amasistimu we-EADS ahlinzeka nge-Eatricoensies ephakeme kakhulu ye-SO2 (> 99%), enikeza izitshalo zamandla okuxoshwa kwamalahle ukuguquguquka okuguquguqukayo ukuxubana kwamalahle ashibhile, aphezulu ama-sulfure.
• Ngenkathi izinhlelo ze-LSFO zakha amathani angama-0,7 e-CO2 kuyo yonke ithoni ye-SO2 esusiwe, inqubo ye-EADS ayikhiqizi i-CO2.
• Ngoba i-lime ne-limestone ayisebenzi kangako uma kuqhathaniswa ne-ammonia ngokususwa kwe-SO2, ukusetshenziswa kwamanzi okuphezulu kanye nokupompa amandla kudingeka ukufeza amanani aphezulu okujikeleza. Lokhu kuphumela ezindlekweni ezisebenzayo ze-LSFO Systems.
• Izindleko ezinkulu zezinhlelo ze-EADS ziyafana nalezo zokwakha uhlelo lwe-LSFO. Njengoba kuphawuliwe ngenhla, ngenkathi uhlelo lwe-EADS ludinga ukucubungula kwe-ammonium sulfate byproduct kanye nemishini yokupakisha, izindawo zokulungiselela iReagent ezihambisana ne-LSFO azidingeki ukuze zigaye, ukuphatha nokuhamba.

Inzuzo ehlukile kakhulu ye-EADS ukuqedwa kokungcola okuwuketshezi nokuqinile. Ubuchwepheshe be-EADS buyinqubo yokukhipha uketshezi we-zero, okusho ukuthi akukho ukwelashwa kwamanzi amdaka. I-ammonium sulfate byproduct iyathengiswa kalula; I-Ammonia Sulfate ingumanyolo osetshenziswa kakhulu kanye nengxenye yomanyolo emhlabeni, ngokukhula kwamamakethe emhlabeni wonke kulindeleke ngo-2030. Ngaphezu kwalokho, ngenkathi ukukhiqizwa kwe-ammonium sulfate kudinga i-amonmonium sulfate kudinga i-centriphuge Ngokuya ngezimo zezomnotho nemakethe, umanyolo we-ammonium sulfate ungasusa izindleko ze-ammonia-based flue dese deselfurfization futhi kungenzeka unikeze inzuzo enkulu.

Inqubo esebenza kahle ye-ammonia depsulfurization process schematic

I-Shandong Zhongpeng ekhethekile ye-ceramics Co, Ltd ingenye yezixazululo ezinkulu kakhulu ze-silicon Carbide Ceramic Ceramic Ceramic Centamic eChina. I-SIC technical Team: Ubulukhuni bukaMoh bungu-9 (Ubulukhuni bakwaMoh abasezingeni eliphakeme bungu-13), ngokumelana okuhle nokuguguleka nokugqwala, ukumelana kahle nokulwa no-oxidation kanye nokulwa no-oxidation. Impilo ye-Sic Product's Service i-4 kuye ku-5 izikhathi ezingaphezu kwezingu-92% izinto ze-alumina. I-MOR ye-ROR ye-RBSIC izikhathi ezi-5 kuye kwezingu-7 ezokwenziwa, zingasetshenziselwa ukwakheka okuxakile. Inqubo yokucaphuna iyashesha, ukulethwa kuthenjisiwe futhi ikhwalithi ingeyesibili. Siqhubeka njalo ekuphonseni izinhloso zethu futhi sibuyise izinhliziyo zethu emphakathini.