Taƙaice: Wannan jagorar ya ƙunshi zaɓin gami, hanyoyin saka hannun jari, lahani, injinan CNC da buƙatun dubawa don nozzles na simintin simintin gyare-gyare na al'ada da aka yi amfani da su a cikin tsarin SCR da SNCR na bututun hayaƙi.
Denitrification nozzles sune mahimman abubuwan lalacewa a cikin tsarin SCR da SNCR na iskar gas, wanda aka fallasa ga yanayin zafi mai zafi, lalata ammonia/urea da yashewar toka.
Wannan jagorar yana mai da hankali kan nozzles denitrification na simintin gyare-gyare, wanda ke rufe yanayin aiki na yau da kullun, kwatankwacin matakin alloy, aikin simintin saka hannun jari, rigakafin lahani da bayanin kammala CNC don simintin bututun ƙarfe na al'ada.
Menene Simintin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙirƙirar Cast Dentrification Nozzle & Sharuɗɗan Sabis ɗin Sa
Bututun cirewa simintin simintin gyare-gyaren simintin gyare-gyaren simintin gyare-gyare ne wanda aka ƙera don allurar urea ko ammoniya daidai gwargwado a cikin magudanan ruwan hayaƙin hayaƙin hayaƙi don maganin ƙirjin.
Ba kamar nozzles ɗin da aka ƙera kai tsaye daga ingantattun sandunan sanduna ba, nozzles na jefa denitrification nozzles suna tallafawa hadaddun tashoshi masu kwarara na ciki, tashoshin feshi da yawa da kuma tsarin hawan haɗe waɗanda ke da wahala ko tsadar samarwa ta hanyar ingantattun mashin ɗin.
Yanayin aiki don bututun iskar gas mai hayaƙi yana haifar da haɗaɗɗun hanyoyin lalata waɗanda ke rage rayuwar sabis:
- Ci gaba ko jujjuya yanayin zafi mai zafi a cikin tukunyar jirgi da ductwork;
- Lalacewar sinadarai daga ammonia, ammonium bisulfate da abubuwan da ke haifar da hayaki mai guba;
- Ƙaƙƙarfan yashewar barbashi da tokar kuda ke ɗauka a cikin iskar hayaƙi;
- Maimaita hawan keke mai zafi wanda ke gabatar da damuwa na gajiyar zafin jiki a sassa masu sirara da kuma kewayen bututun ƙarfe.
Wannan labarin ba zai zurfafa zurfi cikin ka'idar amsa sinadarai ta SCR ko SNCR ba.
Duk jagora anan ya dogara ne akan kayan simintin, ingantattun masana'anta da kuma duba simintin bututun mai da kanta.
Zaɓin Kayan Abun Gaɗi don Simintin Gyaran Nozzles
Zaɓin kayan abu shine yanke shawara mafi tasiri don rayuwar sabis ɗin nozzles.
Don sabis ɗin hanawa, juriya na zaizayarwa yawanci ana ba da fifiko, tare da kwanciyar hankali mai zafi, juriyar lalata da kasafin aiki.
Yankin feshi mai kyau shine wurin da aka fi samun gazawa don nozzles.
Ka'idodin zaɓi don ƙyalli na bututun ƙarfe
A lokacin da ake kimanta gwanjon simintin gyare-gyare don nozzles, daidaita ma'aunin alloy zuwa yanayin rashin nasara mafi rinjaye a cikin mahallin hayaƙin ku:
- Loda tokar gardama mai nauyi: ba da fifiko ga cobalt mai jure lalacewa ko gami da taurin fuska;
- Babban ammonium bisulfate da haɗarin condensate acidic: ba da fifiko ga abubuwan da ke jure lalata nickel-molybdenum;
- Tsayayyen zafin jiki, matsakaicin matsakaici tare da iskar gas mai tsabta: yi amfani da bakin karfe mai jure zafi don sarrafa farashi.
Common simintin alloy maki & aikace-aikace iyakoki
Kowane ma'aunin alloy yana ɗaukar ingantattun ƙarfi da iyakoki don aikace-aikacen hana bututun gas:
- 310S bakin karfe simintin gyaran kafa: dace da matsakaicin zafin jiki, in mun gwada da tsabta hayaki gas da low gardama ash taro; iyakataccen juriya na zaizayar ƙasa ƙarƙashin tasirin toka mai nauyi.
- Duplex 2205/2507: Yana ba da kyakkyawar juriya ga chloride da lalata acidic, amma yana da ƙaramin kewayon zafin sabis na ci gaba idan aka kwatanta da abubuwan da ke da zafi na tushen nickel.
- Hastelloy C276: wanda aka fi so lokacin da lalatawar ammonium bisulfate da gas mai guba na acidic shine babban haɗari na farko; yana aiki da kyau a cikin munanan wurare masu lalata.
- Stelite 6 (cobalt alloy): m juriya ga barbashi yashwa; babban zaɓi don rukunin yanar gizon da ke da babban abun ciki na gardama, kodayake ya zo a cikin kayan ƙima da farashin machining.
- Inconel 625: ya dace da yanayin shukar wutar lantarki mai nauyi mai nauyi inda yawan zafin jiki, lalata da zaizayar toka ke aiki tare.
Teburin kwatanta kayan abu don nozzles denitrification na simintin gyaran kafa
Lura: Zazzabi da aka nuna suna nuni zuwa zafin sabis na dogon lokaci mai ci gaba kawai. Matsakaicin yanayin zafi na wucin gadi na iya wuce waɗannan ƙimar. Don magana gabaɗaya kawai. Yakamata a tabbatar da ingantaccen kayan abu na ƙarshe tare da bayanan haɗakar gas mai hayaƙi daga rukunin yanar gizonku da takaddun bayanan niƙa na gami.
| Alloy Grade | Matsakaicin Yanayin Sabis na Ci gaba | Juriya na Lalata | Juriya na Yazawa | Halin Haɓakawa Na Musamman | Farashin Dangi |
| 310S Bakin Karfe | 1050 °C | Matsakaici | Ƙananan | Tsaftace iskar hayaki, ƙaramar tokar tashi | Ƙananan |
| Farashin 2507 | 315 °C | Babban | Matsakaici | Gas ɗin hayaƙi mai matsakaicin zafin jiki | Matsakaici |
| Hastelloy C276 | 1040 ° C | Mai Girma | Matsakaici-Maɗaukaki | Ammonium bisulfate hadarin lalata | Babban |
| Stellat 6 | 815 ° C | Matsakaici | Mai Girma | Tokar gardama mai nauyi | Mai Girma |
| Farashin 625 | 980 °C | Mai Girma | Babban | Haɗewar zafi mai ƙarfi, lalata & yazawa | Mai Girma |
Tsarin Simintin gyare-gyare don Kayan Aikin Nozzles
Hanyar simintin da aka fi so: Simintin saka jari (bataccen simintin kakin zuma)
Simintin saka hannun jari, wanda kuma aka sani da simintin kakin simintin gyare-gyaren da aka rasa, shine mafi girman hanyar masana'anta don babban aikin simintin bututun ƙarfe.
Wannan tsari ya dace da waɗannan sassa don dalilai da yawa:
- Yana reproduces m ciki kwarara wurare, bakin ciki ganuwar da kananan daidai fesa orifice fasali tare da babban girma daidaito;
- Yana samar da shimfidar wuri mai santsi kamar simintin gyare-gyare, yana rage adadin cire hannun jari da ake buƙata a cikin injinan CNC na gaba.
Ba a ba da shawarar yin simintin yashi gabaɗaya don madaidaicin nozzles tare da rikitattun wurare na ciki ko haƙurin feshi mai mahimmanci.
Ana iya la'akari da shi kawai don sauƙi, nozzles masu ƙarancin aiki tare da buƙatun aiki mara kyau.
Ƙarƙashin ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun magudanar ruwa ya sa aikin simintin gyare-gyaren yashi ya zama ƙasa da abin dogaro ga mafi yawan aikace-aikacen ɓarna.
wuraren kula da ingancin tushe
Gudanar da tsarin tushen kafa kai tsaye yana ƙayyade ko simintin bututun zai tsira daga aikin filin:
- Yanayin narkewar garkuwa don guje wa oxidation da asarar kashi a cikin narke mai-gami;
- Daidaitaccen narkewar ƙarfe tacewa zuwa tarko barbashi slag kafin cika da mold rami;
- Gating na al'ada da shimfidar shimfidar hawan da aka ƙera musamman don juzu'i na lissafi, don ƙaddamar da lahani na raguwa daga ɓangarorin fesa;
- Zaɓin kayan harsashi mai jujjuyawa mai jituwa tare da mai amsawa nickel da narke gami da cobalt.
Mahimman lahani na simintin gyare-gyare & kasadar kasada don nozzles na denitrification
Wasu lahani na simintin gyare-gyare suna haifar da matsalolin dogaro mai tsanani don nozzles na denitrification, ko da ɓangaren ya wuce binciken gani na asali:
- Ƙunƙasa porosity kusa da fesa orifice: na iya haifar da rashin daidaituwa atomization, yayyowar ciki da haɓakar yashwar gida;
- Haɗin Slag: yana haifar da wuraren farawa don yaɗawar fashewa a ƙarƙashin hawan keke;
- Hot tearing: sau da yawa faruwa a sashe miƙa mulki da bakin ciki bututun ƙarfe ganuwar karkashin high gami solidification danniya;
- Matsakaicin motsi: yana canza matsayi na bango, kusurwar feshi da rarraba kwararar bututun ƙarfe.
Matakan rigakafin sun haɗa da simintin gyare-gyare, ƙimar sanyaya mai sarrafawa da ƙirar goyan baya yayin taron ƙirar kakin zuma.
CNC Machining, dubawa & Bayanan karɓa
Simintin gyare-gyare yana isar da siffa ta kusa-net, amma mahimman fa'idodin aikin bututun ƙarfe sun dogara da daidaitaccen aiki bayan aiwatarwa.
Machining mayar da hankali ga bututun ƙarfe orifice da sealing saman
The fesa orifice bore, sealing fuskoki, threaded haši da hawa musaya na bukatar m haƙuri CNC machining.
Geometry na ƙarshe kai tsaye yana sarrafa kusurwar feshi, girman ɗigon ruwa da ƙimar kwarara.
Abubuwan da ake amfani da su na nickel da cobalt suna da wahalar inji.
Shagunan da ke samar da simintin bututun ƙarfe suna buƙatar zaɓar kayan aikin da suka dace, yanke sigogi da dabarun sanyaya don guje wa taurin aiki, tsagewar ƙasa da ƙwanƙwasa ƙira.
Jarrabawar NDT & karɓa na wajibi
Daidaitaccen gwajin karɓuwa don simintin gyare-gyare mai mahimmanci na denitrification yawanci ya haɗa da:
- Gwajin shigar da PT don gano fashewar saman, hawaye masu zafi da fallasa porosity;
- UT ultrasonic dubawa don subsurface shrinkage ko inclusions a lokacin farin ciki sashe;
- Gwajin yatsan ruwa na ruwa don tabbatar da cewa tashoshi masu kwarara na ciki ba su da zubewa;
- Binciken girman CMM don tabbatar da girman bangon bango, kusurwar fesa da ma'aunin hawan madaidaicin zane.
Zaɓuɓɓukan bayan magani
Passivation yawanci amfani da bakin karfe da kuma nickel gami nozzles don inganta surface lalata juriya.
Za'a iya ƙayyade maganin zafi mai daidaitawa don rage ragowar simintin gyaran kafa kafin shigarwa.
Ana iya yin la'akari da hardfacing don ƙarin kariya ta lalacewa a cikin matsanancin yanayin zaizayar toka.
Yanayin Aikace-aikacen gama gari na Cast Denitrification Nozzles
Ana watsa nozzles na simintin gyare-gyare a ko'ina cikin wuraren kula da iskar gas:
- Ƙwararren wutar lantarki mai amfani da wutar lantarki SCR da tsarin SNCR;
- Rukunin murhun hayaƙin siminti;
- Sharar gida-zuwa-makamashi da masu ƙonewa na biomass;
- Tanderun masana'antu da ayyukan kula da hayaƙin hayaƙi.
Kuna iya samun nozzles na simintin gyaran kafa na al'ada akan shafin samfurin mu na musamman.
Don ƙarin bayani kan masana'anta iri ɗaya, zaku iya bitar jagorarmu don simintin gyare-gyaren gami da zafin jiki.
FAQ
Zan iya amfani da daidaitattun simintin gyare-gyare na 316L don rage nauyi mai nauyi?
Gabaɗaya a'a. 316L yana da ƙayyadaddun ƙarfin zafin jiki da ƙarancin juriya ga ammonium bisulfate da yashwar ash.
Bai dace da kusan duk mahalli mai nauyi mai nauyi ba. Yana iya zama karɓuwa kawai a cikin ƙananan zafin jiki, tsabtataccen bututun hayaƙi mara mahimmin madaukai.
Shin ana buƙatar simintin saka hannun jari koyaushe don nozzles na denitrification?
Don nozzles na al'ada tare da hadaddun hanyoyin shiga ciki ko ƙirar feshin tashar jiragen ruwa da yawa, an fi son simintin saka hannun jari sosai.
Sauƙaƙan nozzles-ofice guda ɗaya na iya zama wani lokaci ana ƙera su daga hannun mashaya, amma hakan ya faɗi a waje da iyakokin wannan jagorar simintin.
Menene yanayin gazawa akai-akai na simintin bututun ƙarfe?
Lalacewar yanki na gefen gefen fesa, tare da fashewar lalata-gajiya wanda ya fara daga ɓoyayyiyar ɓoyayyen simintin gyare-gyare ko lahani.
Shin za a iya gyara nozzles na alloy na stelite bayan yazawa?
Ana iya gyara ƙananan lalacewar yazara wani lokaci ta hanyar gyaran fuska mai wuya, amma yuwuwar gyara ya dogara da ragowar kaurin bango da wurin lalacewa.
Rushewar da yawa ko fashe simintin bututun ƙarfe yawanci yana buƙatar sauyawa.
