EN
Rana ce mun san cewa gurasa mai ƙarfi ba ne "ƙarfi" kawai
A cikin wata shekara ta gabata, mu ci crusher na impact don aiki na quarry na basalt saboda yadda ya dace da karami. Kamar yawa ba shi da kyau. A cikin 80 saati, mu tashi daga blow bars daya kuma abin da aka saba da karamin bayani ya tsaya wanda muka saba a karamin bayani. Wannan shine lokacin da muka ci gaba da kula da specs na machine sai muka bi da kula da yadda kwayoyin suka yi a machine. Idan kana crushing granite, basalt ko quartzite, kuna da compressive strength da ke fi 150 MPa—kamar yawa ya fi 250 MPa. Wannan yana nufin silica, yana nufin abrasion, kuma yana nufin ka buƙata compression, ba impact ba. Jaw crushers suna aiki a wannan lokaci saboda su ke kuskus kwayoyin a cikin cracks na su ba tare da su ke smash su a high speed ba. U.S. Bureau of Mines ta publish data cikin wadanda shekaru da suka gabata wanda ya zama daidai: impact crushing a kwayoyin da yawa na silica ya raba blow bar life da 70% kafin limestone. Mu gani wannan number a fadada, kuma ba shi da kari.
Wadanda 50,000 Tons na Norwegian Granite su kawo mu
Muna da ƙungiya a kan hanyar hanyar hanyar jirgin sama a waje da Oslo 'yan shekarun da suka wuce. An fashe kayan da aka yi da graniteangular, kaifi, Mohs 6 zuwa 7. Matsakaicin girman abinci ya kai millimita 600, kuma muna aiki da murƙushewar muƙamuƙi mai ɗauke da madauri tare da faranti na ƙarfe mai yawa. Wannan na'urar ta cinye tan 50,000 ba tare da wata babbar matsala ba. Mun samu tan 250 a awa daya a kai a kai, kuma fitarwa ta kasance 150 mm a ƙasa, wanda ya wuce ƙayyadaddun hanyoyin kula da hanyoyin ƙasar Norway don kayan tushe. Nasara ta gaske? Mun sauya farantin muƙamuƙi sau ɗaya ne kawai cikin awa 1,800 Wannan ba sa'a bane, wannan ya dace da murkushewar dutse. Idan mun gwada hakan da wani mai bugun jini, za mu canza sandunan busawa kowane mako kuma mu kawo sassan maye ta jirgin sama mai saukar ungulu.
Lokacin da Masu Rarraba Tasirin Gaskiya ke Haskakawa (Kuma Ba Hard Rock bane)
Yanzu za a canza shirin. Limestone, brick, da cold asphalt ba su kuma yin gudunmawa—su ke tafiyarwa. Limestone yana da Mohs 3 zuwa 3.5, brick yana da 5 zuwa 6, kuma cold asphalt yana da 4 zuwa 5. Babu wadanda suka nufi silica wanda ke sanya abubuwan da suka daga gudunmawa. Mu yi gudunmawa na abubuwan da suka daga gudunmawa a cikin wannan abubuwa, kuma mu ga kyakkyawan lokacin da blow bar ya zama 700 zuwa 1,100 hours—wanda ke 40 zuwa 60% yanzu da lokacin da za mu samu a granite. Dalilin wannan shine babu kari: wannan abubuwa suna da kari, wato suna tafiyarwa a lokacin da suka daga gudunmawa ba a lokacin da suka gudunmawa a cikin rotor. Ka sami aggregate mai tsaki, wanda ke cikin shirin da asphalt da concrete suke so, kuma ka sami shi da yawa mafi kyawun gudunmawa. Mu hada abubuwan da suka nufi 35,000 tons na brick da reclaimed asphalt a downtown Stockholm a site mai kari da urban—ba mu gani gudunmawa na abrasive a impact plates, 95% uptime a cikin 12 weeks, kuma mu gafara a lokacin da aka shirya a 2 weeks. Swedish Transport Administration ta rubutu wannan project a cikin 2023 Circular Construction Report, kuma abin da aka fahimta shine ba ne lokacin da aka gafara—amma 1,200 truck trips da aka cire a lokacin da gudunmawa a site.
Wani Abu Da Yana Kuma Muta A Kowanne Lokaci Ne A Cikin Gwamnati Na Musamman Na Kullum Da Daga Cikin Gwamnati
Gwamnati na musamman na kulla da daga cikin gwamnati yana ƙarƙashin abu da za a yi shi. Yana da rebar, kayu, plastic, clay fines—abubuwan da suka kawo gaba daya ga chamber kuma su kawo mazanin conveyor idan ba ku jiya ba. Mu ga wannan abu ta hanyar yanzu a wani aiki na brownfield inda mu fara ba a yi pre-screening domin fada lokaci. A cikin uku sa’at, mu samu kawo gaba daya wanda ya dauki rabi na sa’at domin kawo. Yanzu ba mu yi gwiwa ta musamman ba tare da grizzly bar ko vibrating scalping deck a baya na crusher ba. Wannan pre-screen ya kawo abubuwan da suka ƙara kasa da abubuwan da suka zama kusa a baya da chamber. European Federation of Recycling Industries (EuRIC) ya saba kamar 30% na karamin lokacin da ake amfani da machine a wani lokaci da ke da kusurawa, kuma wannan yana daidai da abin da mu ajiye a cikin mu aiki. Ba shi da kyau ba, amma yana kawo machine a yi aiki kuma yana kawo ku daga ajiye sa’atin ku da pry bar.
Me Ya Sa Mu Yi Zama A Cikin Sistemin Modular A Kowanne Aiki Na Urbansa
Idan aka so kuma iya amfani da wani madaidaici ne, wanda ke tsaya da wani irin abu. Amma a yanzu, dukkanin sauyinmu suna da ƙaranci—concrete, asphalt, brick, da natural rock duk suka cikin wani guda. Don haka, mun yi amfani da modular tracked systems wanda suka hada primary jaw, screen deck, da secondary impactor a cikin wani chassis. Jaw ya taimaka wajen yin karamin abubuwa mai kyau, screen ya fara farko daga ƙaramin abubuwa (under 10 mm) don fill, kuma impactor ya shape mid-size fraction (10 to 40 mm) don samun clean aggregate. Abubuwa mai gyara yana zama recirculated. Idan aka compare da separate machines, muna cuts fuel use by about 25%—wannan shine daga UK Environment Agency 2022 benchmarking, kuma muna validate it a cikin fuel logs na mu—and muna shrink site footprint by 40%. A tight city blocks, wannan space saving alone shine farko tsakanin winning the bid da sitting out the job. Sensor-driven controls suka adjust feed rates automatically, don haka bata koma a cikin constant babysitting na settings. Wani pass, certified RCA ko RAP, kuma muna done.
Ina Fassara Mu Na Gani Ga Yadda Za A Samu Tsohon Kusurin Da Muke Buƙata
Idan kana kusurin granit, basalt, ko kwartzit, za ku samu kusurin jaw. Babu wani ba. Idan kana kusurin limestone, brick, ko cold asphalt, kusurin impact zai gane muku kudin da kuskuren da ake yi. Idan kusurin ku shi ne mai tsaya ta hanyar dukkanin abin da ke cikin, za ku yi amfani da kusurin modular wanda yana da pre-screening a cikin. Mu yi dukkanin kuskure wadanda za ku iya yi a cikin wannan ayyuka—mu samu kusurin mara yawa, mu fi kusurin scalper, mu sanya kusurin da yawa—kuma kowane lokaci, mashin ya nuna mu baya da foreman ya nuna mu. Ku bi kusurin, ba tare da bayanin wasu masu bayani ba.
Kamarun Cewa Daga Abokan Mu
T: Za na iya kusurin granit a cikin kusurin impact idan na canza blow bars sosai? Za ka iya, amma ba za ka so kudin da za ka sanya ba. Mu ga cewa blow bar life ya kara 70% a cikin kusurin da yawa na silica—wannan ya kara dukkanin kudin abubuwa da kuskuren da ake yi. Don haka, za a amfani da kusurin jaw. T: Wani ne babban kudin da aka fuska a cikin kusurin portable? Abu kasa na gaba daya. Amma alama mai zuwa ta hanyar tsayi wani abu ne yadda aka tsaya da makinin da ba a amfani da su don abun da ke cikin shi, kuma kushe abubuwan da suka taka kafin ka samu kudin da aka bayar su don amfani da su. T: Yaya zan san lokacin da za a canza jaw plates? Mun ganin su kowane 200 saati a wani abu mai dadi. Idan profile ya kawo kafin ya faru kuma kuka gani waɗanda suka fi kamar da suka taka, sannan lokacin da za a canza su. Kada ka ci gaba har abubuwan su suka kawo kafin su. T: Yaya ne pre-screening yake da muhimmiya a concrete mai kyau? A concrete mai kyau, ba yake da muhimmiya ba. Amma idan kuna da wani dirts, rebar, ko kayu da suka taka, sannan ya kashe maki da yawa—yana kuma kawo kafin wani kankara mai yawa kowane rabi, kuma wannan yana kawo kudin screen deck a rabi daya.