Yadda a Yi Fitilin Radiator da Tsarin Mota na Kashe Aikin Kofin Kasa

Yaya Radiator na Fasalai Sun Gaskiya a Cikin Ayyukan Gwamnati

Masu sanyaya na yau da kullun da aka yi don manyan motocin hawa ko kayan aiki na masana'antu kawai ba su yanke shi a cikin yanayin hakar ma'adinai ba saboda suna fuskantar manyan matsaloli uku a lokaci guda: tarin datti daga ƙura, girgiza koyaushe, da canjin yanayin zafi. Ma'adinai suna fitar da tarin abubuwa masu lalata, wani lokaci sama da milligram 500 a kowane murabba'in mita na iska, wanda ya ninka sau goma abin da muke gani a masana'antun yau da kullum. Wannan abu yana makale da sauri a cikin waɗannan filayen radiator na yau da kullun. Ana hana iska gudu, kuma zafin jiki na ruwan sanyaya yana tashi daga digiri 15 zuwa 25 Celsius cikin 'yan makonni. Ƙasa mai wuya tana haifar da motsi mai ƙarfi wanda ke lalata wuraren solder a cikin ƙwayoyin tagulla na tagulla kuma yana iya tsage sutura a cikin samfuran aluminum. A kan manyan hanyoyi, injuna suna aiki sosai, amma injunan ma'adinai suna fuskantar canjin yanayin zafi sau da yawa yayin da suke canzawa daga zama a cikin aiki zuwa cikakken aiki. Wannan yana sa kayan su yi ƙarfi kuma yana sa ƙaramin tsagewa a cikin bututun da ke da ƙananan ganuwar da ke haifar da ƙananan ɓarkewa. Duk waɗannan batutuwan tare suna nufin lalacewar da ba zato ba tsammani wanda zai iya sa kamfanoni su kashe kusan dala dubu ɗari bakwai da arba'in a kowace awa bisa ga wasu nazarin daga 2023. Wannan shine dalilin da yasa kawai radiators na ma'adinai na musamman ke aiki daidai a cikin waɗannan mawuyacin yanayi. Wadannan suna buƙatar ingantaccen gini, kariya daga mawuyacin yanayi, da gwaji musamman don aikace-aikacen ma'adinai don magance duk waɗannan wuraren gazawar daban-daban.

Kula da Kananin Yadda Ake Bincika Gwamnati na Kula ga Radiator na Maimakon

Amsa Kwamitin Engine daga kW zuwa BTU/h

Koma a cikin amfanin kwamitin engine don samun yadda aka so kula. Wannan kilowatt (kW) na kwamitin engine ya zama ta hanyar 3,412 BTU/h na kula mai gaba. Don ayyukan maimakon—daga hydraulics, transmissions, da wasu sistemai na tsohon—ka sao factor na aminci na 1.2–1.3:

BTU/h da aka bukatar = Kwamitin Engine (kW) × 3,412 × Factor na Aminci (1.2–1.3)

Misali:

Amsa Faktorin Kula: Altitid, Kasa Mai Tsoro, da Kudin Kula Ta Kusanci

Shirin maimakon yana kara kula ga karamin radiator. Uku faktorin kula suka hada da muhimmi, kuma suka hada da karamin kula:

1. Fadamar Altitute : A cikin 1,500 metar, karamin hawa yana kara kula ~1% kafin 100 metar—yana kara kula na kula. A cikin 3,000 metar, ka sao kula na 15%.
2. Kasa Mai Tsoro kusurin clogging ya zama mai yawa a matsayin 15–25%. Radiators da kamar 8 FPI (fins per inch) ko ƙasa da sistema na cleaning na automated da aka kawo a cikin su sun gudan yadda ake taimaka wajen kuskuren wannan.
3. Aiki da kafin kafin aiki da kafin kafin ya bukata karfi na thermal mai yawa. Radiators na al'ada da suka raba don aiki da kafin kafin suna bukata karfi na 20% ta yau da kullum don aiki da kafin kafin.

Karfin da aka zabi a daga baya :
BTU/h da aka gyara = BTU/h na farko × (1 + % na altitude derate) × (1 + % na dust derate) × (1 + % na duty cycle)

Misalai: Engine na 500 kW da ke aiki a 2,000 m (10% na altitude derate) a wani lokaci da dust mai yawa (20% na derate) da kuma aiki da kafin kafin (20% na derate):
2,132,500 × 1.10 × 1.20 × 1.20 = 3,373,560 BTU/h

Zabin tsari na radiator na mining da abubuwan da suka zabi

Aluminum vs. Copper-Brass: Kula da kuzari na vibration, kula da kuzari na corrosion, da kuma kula da wani abu da ke cikin weight

Zaɓin kayan yana tasiri kai tsaye rayuwar sabis a aikace-aikacen ma'adinai. Duk da yake jan ƙarfe-gami yana ba da ~ 25% mafi girman haɓakar zafi fiye da aluminum, fa'idodin sa sun fi ƙarfin kayan aikin ma'adinai na motsi ta hanyar ƙarfin aluminum:

• Zamantakewa zuwa kan yanke : Corean ƙwallon ƙarfe suna jurewa sashi mai lankwasawa daga ƙasa mara kyau 40% fiye da tagulla-gami, bisa ga gwajin OEM a cikin masu jigilar kayan aiki da masu aikin lantarki.
• Haɗin kai ga lalata : Aluminum yana samar da wani nau'i na oxide wanda yake warkar da kansa, yana ba da ingantaccen juriya ga ruwan da ke cikin acidic da kuma sulfide-loaded yanayi wanda ke kusa da tafkunan tafki.
• Ƙarin nauyi : Tsarin Aluminium yana da nauyin ~ 30% ƙasa da rage yawan amfani da man fetur da haɓaka ingancin kaya a cikin rigs na motsi.

Copper-gami har yanzu ya dace da sanyaya murƙushewar murƙushewa inda juriya ga thermal shock shine mafi mahimmanci kuma haɗuwa da rawar jiki yana da iyaka. Zaɓin ya kamata ya ba da fifiko ga yanayin aikiba kawai haɓakawa ba.

Tsarin Core da kuma Finder Density Optimization don Yanayin Dutse Mai Girma

A cikin yanayin da ke da ƙananan ƙananan abubuwa, ƙirar ƙirar yana da mahimmanci kamar kayan. Fensarfin mota mai ƙarancin mota (810 FPI) yana toshewa cikin sauri; maimakon haka, ƙwayoyin layi ɗaya tare da mafi girman tazara (≥3 mm / 46 FPI) suna haɓaka riƙewar iska na dogon lokaci yayin ba da damar tsaftacewa mai tasiri. Bayanai na filin daga jiragen ruwa biyar na Tier 4 sun tabbatar da:

Ƙananan ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙ Ƙarƙashin kusurwa yana ƙara haɓaka ƙurar ƙura a lokacin aiki. Girman girman don ƙarin ƙarfin yana da illa yana ƙaruwa da kamawar ƙasa kuma yana rage saurin kwarara, yana saurin lalacewa.

Guje wa Ƙalubalen Da Ake Fuskanta da Masu Aikin Tushen Ma'adinai

Hadarin Ƙara Girma: Rage Saurin Gudun, Ƙarƙashin Slam, da Ƙarƙashin Ƙarfi

Idan aka yi radiators da yawa don aikace-aikacen su, suna haifar da matsaloli da yawa waɗanda yawancin ƙididdigar girman girman ba su da lissafi. Bari mu fara da abin da ke faruwa idan akwai sarari da yawa a cikin zuciyar radiator. Ruwan sanyaya yana tafiya a hankali a cikin wadannan manyan tsarin, yana sauka a kasa da mita 0.5 a kowane dakika. A irin wannan saurin, datti da ƙura a cikin ruwa suna kwance maimakon su tsaya a ƙasa, suna samar da kwararar laka a kan bututun. Bisa ga bincike daga ASHRAE, irin wannan tarawa zai iya rage yawan iskar zafi da kusan rabi a wasu lokatai. Wani batun kuma ya zo ne daga wuraren da ruwan sanyaya yake da rauni sosai. Wadannan wurare sun zama wuraren da ake yin kiwo don tarawar kasa wanda ke haifar da saurin toshe bututu da ƙirƙirar ƙananan aljihunan lalacewar lalata, musamman a bayyane a cikin radiators na aluminum. Ƙarin ƙarfin motsi yana sa iska ta yi zafi sosai, kuma hakan yana sa yanayin ya yi muni sa'ad da ruwan sanyi ya koma cikin sassan injin bayan an yi aiki a banza. Mun ga rahotanni na filin inda bambancin zafin jiki sama da digiri 120 Fahrenheit ya haifar da ƙananan fasa a cikin ƙwayoyin radiator, bisa ga binciken rashin nasarar kwanan nan daga masana'antun kayan aiki na asali a 2023. Samun radiator mai girman gaske yana da mahimmanci saboda yana kiyaye ruwan sanyaya yana tafiya da sauri (> 1.2 m / s) don kiyaye gurɓatattun abubuwa suna yawo maimakon zama, kuma yana taimakawa sarrafa waɗannan canje-canjen zafin jiki kwatsam waɗanda ke faruwa koyaushe a cikin aiki na duniya.

Kafa da Kafa na Gwamnati: Taimaka Wani Duk Yadda A Yanzu Ya Zama Kamar Yadda A Ta Fasaha

Ko kuma wani radiator da yawa a cikin fahimtar yadda ya kamata, zai iya gudan yana da shi ba tare da kafa mai kyau ba. Kafa ta hanyar mining ta jira biyu na al'adu na muhimmi:

• Zurfin juzuwa : Kafun da yawa suka yi amfani da 15–20 Hz na harmoniki da suka daga cikin kofin, kofin da kofin da kofin—kasa kafin da suka haifar da kafin da kofin, kamar yadda ake kafa da kofin da kofin da kofin.
• Gwamnatin gwamnati shrouding do ya zai bukata a gaba daya—takardun duniya yana nuna cewa 5 mm na gap wanda ba a shirya ba yana zama 30% loss na airflow. A cikin ala'adu da ke da dust mai yawa, za a yi amfani da 0.8–1.2 inch water column static pressure a tsakanin core don tabbatar da cewa airflow ya tashi a cikin layers na particulate. Radiators suka biyu daga zones na exhaust recirculation kuma suka da angled deflectors don sao clean air a cikin face na core. Babu duba, za a tabbatar da inlet/outlet ΔT a lokacin full-load operation: 25% na units da ke kara yawa sun fito daga airflow ko mounting flaws—ba daga design deficiencies ba.

Masu Sabon Gaba (FAQ)

Me ce ta hanyar da radiators na farko suka gaskiya a cikin ala'adu na mining?

Radiators na farko suka gaskiya saboda kasa da ke guda, vibrations da ke dauke da kari, kuma temperature fluctuations a cikin ala'adu na mining wanda suka haifar da stress da kari.

Yaya za mu hisabta cooling capacity wanda aka bukata don radiators na mining?

Mu canza engine power output daga kW zuwa BTU/h a cikin bayanin safety factors, derating factors kamar altitude, dust load, da continuous duty cycles.

Wane ne abubuwan da suka hada da kayan aikin gudun kofin gurara?

Aluminum yana da faida akan copper-brass a cibiyoyin gudun kofin gurara na gida saboda yana da kyau karin rarraba, karin daga tsoro na kariya, da karin wuche.

Yaya fin density ta fuskanta gudun kofin gurara?

Karin fuskanta fin density ta taimaka wajen karewa ga airflow da kuma karewa ga adadin sauyin aiki a cibiyoyin da ke da dust mai yawa.

Wane ne abubuwan da suka hada da kariya na gudun kofin gurara mai yawa?

Gudun kofin gurara mai yawa zai iya nufi kara kariya na flow velocity, kara kariya na sludge, da kariya na thermal shock, wanda zai iya fuskanta kara faida da kuma zai iya haifar da kariya.