Silicon Carbide FGD Nozzle ya desulfurization mumagetsi

Flue Gas Desulfurization (FGD) Absorber Nozzles
Kuchotsa ma sulfure oxides, omwe amadziwika kuti SOx, kuchokera ku mpweya wotulutsa mpweya pogwiritsa ntchito alkali reagent, monga matope a miyala yamchere.

Mafuta oyaka mafuta akagwiritsidwa ntchito poyatsira ma boilers, ng'anjo, kapena zida zina amatha kutulutsa SO2 kapena SO3 ngati gawo la gasi wotuluka. Ma sulfure oxides awa amachita mosavuta ndi zinthu zina kupanga pawiri woyipa monga sulfuric acid ndipo amatha kusokoneza thanzi la anthu komanso chilengedwe. Chifukwa cha zotsatira zomwe zingatheke, kulamulira kwapawiriyi mu mpweya wa flue ndi gawo lofunika kwambiri lamagetsi opangira malasha ndi ntchito zina zamakampani.

Chifukwa cha kukokoloka, plugging, ndi madandaulo omanga, imodzi mwamakina odalirika owongolera mpweyawu ndi njira yotseguka ya nsanja yonyowa ya gasi desulfurization (FGD) pogwiritsa ntchito mwala wa laimu, laimu wa hydrated, madzi a m'nyanja, kapena njira ina yamchere. Ma nozzles opopera amatha kugawa moyenera komanso modalirika ma slurries awa munsanja zoyamwitsa. Popanga ma yunifolomu madontho akulu akulu, ma nozzleswa amatha kupanga bwino malo ofunikira kuti amwe bwino ndikuchepetsa kulowetsedwa kwa njira yotsuka mu gasi wa flue.

Kusankha Nozzle ya FGD Absorber:
Mfundo zofunika kuziganizira:

Kupukuta media kachulukidwe ndi mamasukidwe akayendedwe
Zofunika dontho kukula
Kukula koyenera kwa madontho ndikofunikira kuti mutsimikizire mayamwidwe oyenera
Nozzle zinthu
Popeza mpweya wa flue nthawi zambiri umakhala wowononga komanso madzi otsekemera nthawi zambiri amakhala ndi zinthu zolimba komanso zowononga, kusankha koyenera kuwononga komanso kuvala zinthu zosagwirizana ndikofunikira.
Nozzle clogging resistance
Popeza madzi otsukira nthawi zambiri amakhala ndi zinthu zolimba kwambiri, kusankha mphuno pokhudzana ndi kutsekeka ndikofunikira.
Nozzle spray pattern ndi makhazikitsidwe
Kuonetsetsa kuti kuyamwa koyenera kwa mpweya wa gasi popanda kudutsa komanso nthawi yokwanira yokhalamo ndikofunikira.
Kukula kwa kulumikizana kwa nozzle ndi mtundu
Kuchuluka kwa madzi osamba kumafunika
Kutsika kwamphamvu komwe kumapezeka (∆P) kudutsa mphuno
∆P = perekani kukakamiza polowera m'mphuno - konzekerani kukakamiza kunja kwa nozzle
Mainjiniya athu odziwa zambiri atha kukuthandizani kudziwa kuti ndi nozzle iti yomwe ingagwire ntchito molingana ndi kapangidwe kanu
Common FGD Absorber Nozzle Ntchito ndi Mafakitale:
Makala ndi malo ena opangira magetsi
Mafuta oyeretsera mafuta
Zopsereza zinyalala za municipal
Zowotchera simenti
Zosungunula zitsulo

SiC Material Datasheet

Zoyipa ndi Lime / Limestone

Monga momwe chithunzi 1 chikusonyezera, machitidwe a FGD omwe amagwiritsa ntchito laimu / laimu wokakamiza oxidation (LSFO) ali ndi machitidwe akuluakulu atatu:

• Kukonzekera kwa reagent, kusamalira ndi kusunga
• Absorber chotengera
• Kusamalira zinyalala ndi zotulukapo

Kukonzekera kwa reagent kumaphatikizapo kutumiza mwala wa laimu wophwanyidwa (CaCO3) kuchokera m'nkhokwe yosungiramo kupita ku thanki yazakudya yovutitsidwa. Chifukwa cha matope a miyala ya laimu amapoperedwa ku chotengera choyatsira limodzi ndi mpweya wa boiler flue ndi mpweya wotulutsa okosijeni. Ma nozzles opopera amapereka madontho abwino a reagent omwe kenaka amayenda molumikizana ndi mpweya wotuluka. SO2 mu gasi wa flue imagwira ntchito ndi calcium-rich reagent kupanga calcium sulfite (CaSO3) ndi CO2. Mpweya womwe umalowetsedwa mu chotengera umalimbikitsa okosijeni wa CaSO3 kupita ku CaSO4 (mawonekedwe a dihydrate).

Zoyambira za LSFO ndi:

CaCO3 + SO2 → CaSO3 + CO2 · 2H2O

Dongosolo lopangidwa ndi okosijeni limasonkhanitsidwa pansi pa chowumitsira ndipo kenako amasinthidwanso ndi reagent yatsopano kubwereranso kumutu wanozzle. Gawo lina la mtsinje wobwezeretsanso limachotsedwa ku zinyalala / zopangira zinthu, zomwe nthawi zambiri zimakhala ndi ma hydrocyclones, zosefera za ng'oma kapena lamba, ndi thanki yosungiramo madzi akuwonongeka/mowa. Madzi otayira kuchokera mu thanki yosungiramo amawabwezeretsanso ku thanki yodyetsera miyala yamchere kapena ku hydrocyclone komwe kusefukira kumachotsedwa ngati utsi.

Lime/Limestone Yokakamiza Oxidatin Wet Scrubbing Process Schematic

Machitidwe onyowa a LSFO nthawi zambiri amatha kukwaniritsa zochotsa za SO2 za 95-97 peresenti. Kufikira milingo yopitilira 97.5 peresenti kuti ikwaniritse zofunikira zowongolera mpweya, komabe, ndizovuta, makamaka kwa mbewu zomwe zimagwiritsa ntchito malasha a sulfure wambiri. Magnesium catalysts akhoza kuwonjezeredwa kapena miyala ya laimu ikhoza kuwonjezeredwa ku laimu wochuluka wa reactivity laimu (CaO), koma kusintha koteroko kumaphatikizapo zipangizo zowonjezera za zomera ndi ndalama zogwirira ntchito ndi mphamvu. Mwachitsanzo, calcining kuti laimu kumafuna unsembe wa osiyana laimu ng'anjo. Komanso, laimu amawomberedwa mosavuta ndipo izi zimawonjezera kuthekera kwa mapangidwe a depositi mu scrubber.

Mtengo wa calcination ndi ng'anjo ya laimu ukhoza kuchepetsedwa pobaya mwachindunji miyala ya laimu mu ng'anjo yowotchera. Mwanjira iyi, laimu wopangidwa mu boiler amanyamulidwa ndi gasi wa flue mu scrubber. Mavuto omwe angakhalepo ndi monga kuwonongeka kwa boiler, kusokoneza kutentha, komanso kusagwira ntchito laimu chifukwa cha kutentha kwambiri mu boiler. Kuphatikiza apo, laimuyo amachepetsa kutentha kwa phulusa losungunuka m'ma boiler oyaka ndi malasha, zomwe zimapangitsa kuti zikhale zolimba zomwe sizikanatheka.

Zinyalala zamadzi zochokera munjira ya LSFO nthawi zambiri zimapita ku maiwe okhazikika komanso zinyalala zamadzimadzi zochokera kwina kopangira magetsi. Madzi amadzimadzi a FGD amadzimadzi amatha kudzaza ndi mankhwala a sulfite ndi sulphate ndipo malingaliro a chilengedwe amachepetsa kutulutsidwa kwake ku mitsinje, mitsinje kapena mitsinje ina. Komanso, kubwezeretsanso madzi otayira / chakumwa kubwerera ku scrubber kungayambitse kusungunuka kwa sodium, potaziyamu, calcium, magnesium kapena chloride salt. Mitundu iyi imatha kuyera pokhapokha ngati magazi okwanira aperekedwa kuti mcherewo ukhale wosakwanira. Vuto linanso ndilo kukhazikika kwapang'onopang'ono kwa zowonongeka zowonongeka, zomwe zimabweretsa kufunikira kwa maiwe akuluakulu, okhazikika okhazikika. Munthawi yake, wosanjikiza wokhazikika mu dziwe lokhazikika amatha kukhala ndi 50 peresenti kapena kupitilira kwamadzimadzi ngakhale pakatha miyezi ingapo yosungira.

Kashiamu sulphate yochokera ku phulusa losasunthika lomwe limatha kupangidwanso ndi calcium sulfite. Zowononga izi zimatha kuletsa calcium sulfate kuti isagulitsidwe ngati gypsum yopangira kuti igwiritsidwe ntchito pakhoma, pulasitala, ndi kupanga simenti. Mwala wa laimu wosasunthika ndiye zonyansa zambiri zomwe zimapezeka mu gypsum yopangidwa komanso ndizonyansa zodziwika bwino mu gypsum yachilengedwe (mined). Ngakhale kuti miyala ya miyala ya miyala yamtengo wapatali simasokoneza zinthu zamtundu wa wallboard, katundu wake wonyezimira amakhala ndi vuto la kuvala kwa zida zopangira. Calcium sulfite ndi zonyansa zosafunikira mu gypsum iliyonse chifukwa kukula kwake kwa tinthu kumabweretsa zovuta zokulitsa ndi zovuta zina pakukonza monga kutsuka keke ndi kuthirira madzi.

Ngati zolimba zomwe zimapangidwa munjira ya LSFO sizigulitsidwa ngati gypsum yopangira, izi zimabweretsa vuto lalikulu lakutaya zinyalala. Pa boiler ya 1000 MW yomwe imawotcha 1 peresenti ya malasha a sulfure, kuchuluka kwa gypsum ndi pafupifupi matani 550 (afupi) / tsiku. Pa chomera chomwechi kuwombera 2 peresenti ya malasha a sulfure, kupanga gypsum kumawonjezeka kufika pafupifupi matani 1100/tsiku. Kuonjezera matani 1,000 patsiku kuti apange phulusa la ntchentche, izi zimapangitsa kuti zinyalala zolimba zifike pafupifupi matani 1550/tsiku pa 1 peresenti ya malasha a sulfure ndi matani 2100/tsiku pa 2 peresenti ya sulufule.

Ubwino wa EADS

Ukadaulo wotsimikiziridwa wosiyana ndi LSFO scrubbing umalowa m'malo mwa miyala yamchere ndi ammonia monga chothandizira kuchotsa SO2. Makina olimba a reagent mphero, kusungirako, kasamalidwe ndi zida zonyamulira mu dongosolo la LSFO amasinthidwa ndi akasinja osavuta osungira ammonia amadzi kapena anhydrous. Chithunzi 2 chikuwonetsa dongosolo la EADS loperekedwa ndi JET Inc.

Ammonia, gasi wa flue, mpweya wotulutsa okosijeni ndi madzi opangira zinthu zimalowa mu chotengera chomwe chili ndi milingo ingapo ya mphuno zopopera. Ma nozzles amapanga madontho abwino a reagent okhala ndi ammonia kuti awonetsetse kulumikizana kwapamtima kwa reagent ndi mpweya wotuluka wa flue malinga ndi zotsatirazi:

(1) SO2 + 2NH3 + H2O → (NH4)2SO3

(2) (NH4)2SO3 + ½O2 → (NH4)2SO4

SO2 mumtsinje wa gasi wa flue imakhudzidwa ndi ammonia mu theka lapamwamba la chombo kuti apange ammonium sulfite. Pansi pa chotengera chotsitsa chimakhala ngati thanki ya okosijeni pomwe mpweya umatulutsa ammonium sulfite kukhala ammonium sulfate. Zotsatira zake za ammonium sulphate zimapopedwanso kumutu wa nozzle wopopera pamiyeso ingapo mu chotengera. Mpweya wosungunula usanatuluke pamwamba pa chotengeracho, umadutsa pa demister yomwe imagwirizanitsa madontho amadzimadzi aliwonse omwe ali mkati ndikugwira bwino.

The ammonia anachita ndi SO2 ndi sulfite makutidwe ndi okosijeni kuti sulphate amakwaniritsa mkulu reagent magwiritsidwe mlingo. Mapaundi anayi a ammonium sulphate amapangidwa pa kilogalamu iliyonse ya ammonia yomwe imagwiritsidwa ntchito.

Mofanana ndi ndondomeko ya LSFO, gawo lina la reagent / mankhwala obwezeretsanso mtsinje akhoza kuchotsedwa kuti apange malonda. Mu dongosolo la EADS, njira yothetsera mankhwala imaponyedwa kumalo osungira zinthu zolimba omwe ali ndi hydrocyclone ndi centrifuge kuti awonetsetse mankhwala a ammonium sulfate asanayambe kuyanika ndi kulongedza. Zamadzimadzi zonse (hydrocyclone kusefukira ndi centrifuge centrifuge) zimabwereranso ku thanki ya slurry ndikulowetsedwanso mumtsinje wa ammonium sulfate recycle recycle.

• Makina a EADS amapereka mphamvu zapamwamba zochotsa SO2 (> 99%), zomwe zimapangitsa kuti magetsi oyaka ndi malasha azitha kusinthasintha kuti asakanize malasha otsika mtengo komanso apamwamba a sulfure.
• Pomwe machitidwe a LSFO amapanga matani 0.7 a CO2 pa toni iliyonse ya SO2 yochotsedwa, njira ya EADS sipanga CO2.
• Chifukwa laimu ndi miyala ya laimu sizigwira ntchito kwambiri poyerekeza ndi ammonia pochotsa SO2, kugwiritsa ntchito madzi ochulukirapo komanso kupopera mphamvu kumafunikira kuti akwaniritse kuchuluka kwa ma circulation. Izi zimapangitsa kuti pakhale mtengo wokwera pamakina a LSFO.
• Ndalama zoyendetsera makina a EADS ndizofanana ndi zopangira dongosolo la LSFO. Monga tafotokozera pamwambapa, pamene dongosolo la EADS limafuna ammonium sulfate byproduct processing ndi zida zonyamula katundu, malo okonzekera reagent ogwirizana ndi LSFO safunikira mphero, kusamalira ndi kunyamula.

Ubwino wodziwika kwambiri wa EADS ndikuchotsa zinyalala zamadzimadzi komanso zolimba. Tekinoloje ya EADS ndi njira yochotsera zero-zamadzimadzi, zomwe zikutanthauza kuti palibe mankhwala amadzi onyansa omwe amafunikira. The solid ammonium sulfate byproduct imagulitsidwa mosavuta; ammonia sulphate ndi gawo logwiritsidwa ntchito kwambiri la feteleza ndi feteleza padziko lonse lapansi, ndipo kukula kwa msika wapadziko lonse kumayembekezeredwa kupyolera mu 2030. Kuphatikiza apo, pamene kupanga ammonium sulfate kumafuna centrifuge, dryer, conveyer ndi zipangizo zoyikapo, zinthuzi sizikhala zamalonda komanso zamalonda. kupezeka. Kutengera ndi momwe zinthu ziliri pazachuma komanso msika, feteleza wa ammonium sulphate atha kutsitsa mtengo wamafuta opangidwa kuchokera ku ammonia ndipo atha kupereka phindu lalikulu.

Njira Yabwino ya Ammonia Desulfurization Schematic

Shandong Zhongpeng Special Ceramics Co., Ltd ndi imodzi mwamayankho akulu kwambiri a silicon carbide ceramic ku China. SiC ukadaulo wa ceramic: Kulimba kwa Moh ndi 9 (Kulimba kwa Moh Chatsopano ndi 13), kukana kwambiri kukokoloka ndi dzimbiri, abrasion yabwino - kukana ndi anti-oxidation. Moyo wautumiki wa SiC ndi 4 mpaka 5 nthawi yayitali kuposa 92% alumina. MOR ya RBSiC ndi 5 mpaka 7 nthawi ya SNBSC, itha kugwiritsidwa ntchito pazinthu zovuta kwambiri. Ndondomeko yobwereketsa ndi yofulumira, yobweretsera ndi monga momwe inalonjezedwa ndipo khalidweli ndi lachiwiri kwa wina aliyense. Nthawi zonse timalimbikira kutsutsa zolinga zathu ndikubwezeranso mitima yathu kwa anthu.