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Yankin Poweraƙƙarfan Wuta na Coal yana Amfani da Ellicott® redanƙara don samar da Kayayyakin Kayayyakin amfani da Hudu

"Kayan aiki mafi tsada mafi tsadar kayan aiki da aka taɓa kawowa wannan kayan. "- Mark Shea, Mataimakin mai Kula da Sharar Gaggawa

A cikin wani sabon abu feat don dredge hydraulic, an Ellicott Brand Series 370 Dragon ”DARIJI® ” cutterhead datti haƙa da kayan daban-daban guda huɗu daga ikon shuka biyu da ke shimfiɗa tafkunan: tashi ash, ƙasa ash, lemun tsami, lemun tsami hade da ash ash. Dredge ya motsa fiye da yadudduka 100,000 a cikin watanni uku kawai.

Birnin Springfield, Illinois ya mallaki kuma yana aiki da Gidan Ruwa da Ruwa na Ruwa (CWLP) Dahlmann Generating Station. Kone-kone yana haifar da kayan sharar gida guda uku: toka, toka na ƙasa, da lemun tsami daga tsiron tsabtace ruwa. A da, ana adana waɗannan kayan sharar har abada a cikin kududdufai a cikin bushe ko yanayin ruwa. Kwanan nan, an sami amfani mai amfani don waɗannan
samfura. Ana amfani da ash na ƙasa don kera kafofin watsa labarai masu fashewa da shinge na rufi; an yi amfani da ash ash a matsayin kayan cikawa domin ginin babbar hanya; ana amfani da lemun tsami a filayen gona na Illinois don kawar da acid acid da kuma inganta amfanin gona.

Akwai babbar matsala guda ɗaya, duk da haka: duk waɗannan samfuran ana jibge su zuwa wuraren tafki na shiryawa da ruwa, don haka suka fi son yin zaman dirshan a kan manyan yankuna a cikin tafkin, wanda ke sanya su da wahalar dawowa. A baya garin ya tono waɗannan kayan ta amfani da hoes na baya wanda yake gefen gefunan tafkunan, amma wannan kayan aikin yana iyakantacce ne kawai don haka yawancin kayan - har zuwa
90% - ya kasance a cikin tafkunan da ke ƙarƙashin ruwa.

CWLP, bayan bincike game da fasahohin tono abubuwa da yawa, sun zabi haƙar kayan ta amfani da Ellicott Brand "DRAGON®" cutterhead dredge. Sun yanke shawarar nutsar da ruwa mafi girman tafkin su na farko (kimanin kafa 3000 mai tsawon kafa 1000) wanda ke dauke da toka guda biyu da toka. Birnin ya ba da haya ga Ellicott®, samfurin dredge kuma ya sarrafa shi tare da shi
mallakan ma'aikata waɗanda injiniyoyin sabis na filin Ellicott® suka horas da su "ta hanyar yanar gizo ba tare da ƙarin farashi ga Birnin ba.

Tare da dredge, CWLP zai iya ma'adinan da ke ƙarƙashin ruwan har zuwa ƙafafun 2000 nesa daga wurin adana inda aka cire kayan daga cikin tafkin don ajiyewa da bushewa. Saboda bututun mai na 12-inch yana zubar da daskararru zuwa 50% a cikin slurry zuwa wannan yanki har zuwa 4000 GPM, kuma City ba ta san idan kayan za su tashi a cikin matattarar ko za su sake komawa babban kandami ba. Yanke shawarar farawa a farko farko yana da wahala. Koyaya, bayan makonni biyu na lalacewa, City ta ƙudurta cewa ƙarshen ash da tashi ash suna daidaitawa sosai a yankin mai kulawa kuma ana iya lalata su ta baya, wanda yanzu zai iya aiki a yanki ɗaya kawai. Wannan babban nasara ne ga shirin sake sarrafawa tunda 100% na kayan cikin tafkunan za a iya haɓaka su tare da bushewa da bushe don amfanin mai amfani.

Ingantawar Rarrashi Tanadin Sama da $ 200,000
Saboda wani yanki na tokar toka ya yi ƙaura zuwa babban tafkin kwararar ruwa, an kuma yi amfani da dredge don tsabtace wannan yanki don ba da damar sasanta ƙwararan daskararru a cikin tafkin kuma don haka mai tsabtace ruwa. Mista Mark Shea, manajan aikin dredging na City, ba shi da komai sai yabo ga alamar Ellicott®. “Ba wai kawai muna hakar abu don sake sarrafawa ba ne, amma muna samun kwararar ruwa mai tsafta a farashin da ya yi kasa da na aikin hakar kasa ta hanyar amfani da kwalliya da dozers. A cikin wannan gajeren lokacin, City ta adana sama da $ 285,000 vs. na al'ada dabaru, a 50% tanadi. "

City ta kashe kawai $ 1.80 a kowane yanki mai siffar sukari na kayan kwatancen idan aka kwatanta da mafi ƙarancin kwangilar ƙetaren waje na $ 3.85 a kowane yadi.

Ruwa na biyu da ƙarami, wanda ke karɓar ruwa mai ƙwari daga babban kogin toka / ƙasan ash, kuma ya ƙunshi lemun tsami-daga cikin tsarin tsabtace ruwa na SO2. Birnin bai san yadda kyau Elredott® Brand 370 dredge zai yi ba a cikin ɗanɗano mai kauri, mai kauri wanda aka inganta shi a cikin kandami. Hakanan akwai takun ƙafa 2000 na bututun mai da hannu, don haka garin ya sanya mitar gudu (don auna gpm slurry) da ma'aunin yawaitar nukiliya don auna yawan adadin daskararru a cikin slurry. A wurin fitar da ƙafa 2000 daga nesa, magudanar ta kasance 4100 gpm, kuma daidaitaccen ruwan lemun tsami a cikin bututun ya kasance mai ƙarfi 50% da nauyi. Kodayake 370 na iya dredge zuwa zurfin kafa 20, an riƙe zurfin zurfin zuwa ƙafa 15. Birnin kuma ya gano cewa lemun tsami shine
gauraye da ash ash, kuma Jerin 370 na jifa da wannan kayan a matakan 50% daskararru.

Saboda iyawar dredge don motsawa da lemun tsami a cikin daskararren abun ciki, maiyuwa ne za'a iya jigilar lemun tsami a ruwa mai sanya shi kai tsaye a gonakin gona. Wannan shine al'ada gama gari a tsakiyar yamma, kuma tsari yana girma.

Mark Shea yayi sharhi, “Mun tabbatar da cewa Ellicott® Series 370 dredge na iya matsar da samfuranmu uku cikin tsada sosai, kuma muna da kasuwar waɗannan kayan. Babu kusan saukar lokaci duk da cewa muna aiki a cikin watanni masu sanyi. Wataƙila shi ne kayan aikin da ya fi dacewa da aka taɓa kawowa kan wannan kadarar. ”

Rage ash, daskararren ash, da lemun tsami, da zarar kusan ba zai yiwu a murmure ba, kuma yin komai tare da kayan masarufi ne kawai babban ci gaba ne ga City of Springfield, Illinois. Ba wai kawai an yi wannan ba tare da tsadar kuɗin 50% idan aka kwatanta da dabarun al'ada, har ma a cikin yanayi da yawa inda dabarun al'ada ba za su yi aiki kwata-kwata.

Fara Tsarin Tsarin Ruwa na Wanka Tare da Ellicott

Labaran Labarai da Nazari