Ma'adinan karkashin kasa yana buƙatar samun iska wanda ba zai taɓa lalacewa ba-inda gazawar fan ba abin damuwa ba ne; keta aminci ne. Shi ya sa ma'aikatan hakar ma'adinai a Shanxi, Mongoliya ta ciki, da kuma cikin kudu maso gabashin Asiya ke ci gaba da komawa cikin Fbd jerin ma'adinan minds fan: ba a matsayin mai busawa na gaba ɗaya ba, amma a matsayin filin da aka tabbatar, fashewa-hujjar matsa lamba-injection counter-juyawa axial fan na gida iska da aka gina don sifili-tashi muhallin.
Mun ga abin da ke faruwa lokacin da aka kwafi ƙayyadaddun bayanan iskar iska daga ƙasidu-ba a inganta su ta ƙasa ba. Abokin ciniki ɗaya a cikin kwal ɗin kwal tare da maida hankali na methane 8.2% ya shigar da fan axial mara izini wanda aka kimanta "don amfanin hakar ma'adinai." Ya ci gwajin masana'anta. Ya gaza a ranar 17 - girgiza ya karu, berayen sun yi zafi sosai, kuma gidajen motar sun fashe a karkashin hawan zafi. Tushen dalili? Babu daidaitawa mai ƙarfi a jujjuyawar cikakken kaya. Babu gwajin shigar kura da aka kwaikwayi. Babu tabbaci akan ka'idojin tabbatar da fashewar GB 3836.1-2021. Jerin FBD yana guje wa waɗancan ramukan ta ƙira-ba ta hanyar daidaitawa ba.
Me yasa Juyawa-juyawa ba Jargon Talla bane kawai
Yawancin magoya bayan axial suna jujjuya rotor ɗaya. Jerin FBD yana amfani da rotors guda biyu masu juyawa daban-daban suna jujjuyawa zuwa saɓanin kwatance. Wannan ba ƙwarewar ka'idar ba ce - fitarwa ce mai aunawa: har zuwa 15% mafi girman matsa lamba a daidai wannan ikon jan wuta, 8-12 dB (A) ƙananan ƙara a mita 3, da kuma kusa-sifili axial cusa kan bearings. Mun auna wannan a wurin yayin gwaji na kwanaki 90 a mashigin baƙin ƙarfe mai zurfin mita 1,200 a Anhui. Tare da matsa lamba mai ma'amala da ke canzawa tsakanin -120 Pa da -210 Pa saboda juriya na juriya, saitin rotor dual-rotor yana kiyaye kwararar iska a cikin ± 2.3% na saiti-yayin da ke fafatawa da raka'o'in rotor guda daya sun karkata ± 9.7%.
Wannan kwanciyar hankali ya fito daga aiki tare na inji-ba gyara software ba. Kowane na'ura mai juyi yana hawa a kan nasa babban madaidaicin madaidaicin taro, wanda ya yi daidai da ≤0.03 mm jimlar karatun nuni (TIR). Babu akwatunan gear. Babu zamewar bel. Haɗa kai tsaye kawai, injiniyoyi masu hana fashewa suna saduwa da takaddun shaida na Ex dⅠ Mb don kayan aikin Category M1.
Real-World Durability: What Survives Underground
Lalata yana kashe magoya baya da sauri fiye da ƙura. A cikin ma'adinan kwal mai arzikin sulfur, gidajen da ba a kula da su ba sun lalace cikin ƙasa da watanni 18. Jerin FBD yana amfani da firam ɗin galvanized mai zafi-tsoma tare da zaɓin epoxy-polyester foda shafi wanda aka kimanta zuwa ISO 12944 C4. Amma shafi kadai ba ya yanke shi-muna ƙarfafa yankunan damuwa mai mahimmanci: wuraren da aka yi amfani da su suna samun 3-mm-m kauri bakin karfe liners; mazugi masu shigowa suna fasalin faranti na sawa na AR400 wanda za'a iya maye gurbinsu; kuma duk fasteners ne A4-80 bakin tare da anti-seize fili riga-amfani.
Mun kuma gwada fiye da misali. Kowace naúra tana yin gwajin fesa gishiri na tsawon sa'o'i 4 a zazzabi na 35 ° C, sannan sa'o'i 72 a cikin 95% na zafi na RH a 40 ° C - sannan sake gwada aikin nan da nan. Idan iska ta ragu fiye da 1.5%, an ƙi shi. Babu ware. Wannan horon ya bayyana dalilin da yasa sassan FBD ke yin rajistar sa'o'i 42,000+ na aiki akai-akai kafin babban sabis na farko-kusan ninki biyu na matsakaicin masana'antu don kwatankwacin hawan aiki.
Shigarwa & Haɗin kai: Inda Yawancin Dillalai ke Tsaya Gajere
"Toshe-da-wasa" babu a karkashin kasa. Kuna buƙatar daidaitawar ducting, sassaucin wutar lantarki, da sa ido na gaske-ba alamar CE kawai ba. Jerin jiragen ruwa na FBD tare da fa'idodin haɗin kai guda uku:
- Zaɓuɓɓukan mu'amala da tashar jirgin ruwa: Madaidaicin 600 mm, 700 mm, da 800 mm flanges - da adaftar adaftar al'ada don tsarin gado na 24 ″ ko 30 ″
- Daidaitawar wutar lantarki: Dual-voltage windings (380V / 660V) tare da zaɓi na 1140V na zaɓi don shigarwar babban layi mai tsayi.
- Tsarin gine-gine mai wayo: Gina na'urori masu auna firikwensin PT100 akan duka iskar motsi + masu jujjuyawa (fitarwa 4-20 mA), an riga an haɗa su zuwa tubalan tasha - ba a buƙatar raba filin da ake buƙata.
Babu kayan aikin sake gyarawa. Babu jinkirin "tuntuɓar ƙungiyar injiniyarmu". Waɗannan ba ƙari ba ne - an haɗa su da masana'anta, an gwada su, kuma an rubuta su a cikin rahoton ƙaddamarwa da aka aika tare da kowace ƙungiya.
Yin Zaɓin Dama-Ba tare da Hasashen Ayyuka ba
Zaɓin wani Fbd jerin ma'adinan minds fan ba game da daidaita ƙarfin doki zuwa tsayin rami ba. Yana game da zayyana yanayin yanayin ku mafi muni: matakan methane kololuwa, ɗora ƙura da ake tsammanin (mg/m³), canjin yanayi na yanayi, da kuma lokacin da aka yarda da shi don kiyayewa. Shi ya sa ba ma yin nakalto daga kasida. Mun fara da shirin ku na ma'adinan, tsarin iskar gas, da karatun iskar gas na tarihi-da aikin ƙira ta amfani da ingantattun maƙallan fan na CFD, ba sigogin da suka dace ba.
Idan yawan zafin iskan da kuke sha yana kaiwa 45°C akai-akai, kuna buƙatar ɓataccen ɓacin rai (Class H, ba F). Idan fan ɗin ku yana gudanar da sa'o'i 22/rana tare da tasha/fara hawan keke na mintuna 3, kuna buƙatar ƙarfafan iskar stator da daidaitawar farawa mai laushi. Waɗannan ba "zaɓuɓɓuka ba ne" - ba za su iya yin shawarwari ba. Kuma ana toya su cikin kowane rukunin FBD kafin ya bar filin samar da masana'antar masana'antar Zibo Blower.
Ba a samun dogaro a ƙarƙashin ƙasa ta hanyar sakewa. An gina shi a cikin rotor, an ƙirƙira shi a cikin gidaje, an tabbatar da shi a cikin tantanin halitta, kuma an tabbatar da shi a inda ya fi dacewa - a cikin duhu, a ƙarƙashin matsin lamba, tare da rayuka dangane da iska. Wannan shine ma'aunin jerin FBD. Ba manufa ba. Ba alkawari ba. A tushe.
