Ingabe iSitshalomali Esincane Esixubile Se-Asphalt Siyindlela Ehlakaniphile Yokutshalwa Kwezimali Kwemisebenzi Yemigwaqo Emincane?

Kungani Abakhi Bezinkontileka Bekhuluma Ngokungazelelwe Ngezitshalo Ze-Asphalt Ezincane Ezishisayo?

Hamba uye kunoma iyiphi indawo encane yokulungisa imigwaqo ukusuka eTexas ukuya eThailand futhi uzozwa umsindo ofanayo: “Besingaqeda le ndawo ngesigamu sesikhathi ukube besinesitshalo esincane se-asphalt esixubene nokushisa esizeni.” Ingxoxo inomsindo ngesizathu. Izitshalo zendabuko zemigqomo zakhiwe ngemisebenzi engaphezu kwamathani angu-200 ngosuku, kodwa izifunda eziningi kanye nabathuthukisi bezindlu badinga amathani angu-20-50 kuphela ukuze kugcinwe imigodi. Isitshalo esincane se-asphalt esixubene nokushisa sigcwalisa leso sikhala ngaphandle kwemali yokuthutha enezinombolo eziyisithupha noma isekisi yemvume yenyanga yonke. Ngamafuphi, ukuthambekela kobukhulu obufanele ekugcineni kufinyelele ku-asphalt.

Yini Efaneleka Kahle Njengesitshalo “Esincane”?

Abantu abangaphakathi embonini bavame ukubiza noma iyiphi iyunithi yokugeleza okuphambene noma okuhambayo okulinganayo ngaphansi kuka-80 tph ngokuthi “incane,” kodwa indawo enhle kakhulu yabasebenzi bomgwaqo yi-10-40 tph. Le mishini ingena elolini elilodwa elinombhede ophansi, iphuza uphethiloli ngamalitha angu-6-7 ngethani, futhi ingaqhutshwa ochwepheshe ababili abaziyo ngempela ukusebenzisa uhlelo lokusebenza lwe-smartphone. Amamodeli amancane kakhulu aneziqukathi angena ngisho nasesitsheni se-HQ esingamamitha angu-40, ngakho-ke ungayithumela ephrojekthi elandelayo yesiqhingi ngaphandle kokukhokha amanani emithwalo ekhululekile. Futhi, yebo, basafinyelela izinga lokushisa elixubile elingu-150 °C elisho ukuthi ama-DOT ayalidinga—akukho zinqamuleli zekhwalithi.

Ingakanani Intengo Yesitshalo Se-Asphalt Esixutshwe Kancane Esishisayo—Ngempela?

Amanani ezitikha ashintsha kusuka ku-US$110 k ngeyunithi eyisisekelo engu-10 tph kuya ku-US$350 k ngemodeli engu-40 tph ene-RAP feed kanye nethangi le-bitumen. Kuzwakala kukhulu kuze kube yilapho usuqedile izibalo: ukuqasha isitshalo sezentengiselwano esiqhele ngamamayela angu-40 kubiza u-US$18–22 ngethani ngalinye ngezindleko zokuthutha zodwa. Emsebenzini wokuhlukanisa amathani angu-5 000, lokho kungu-US$90 k–110 k awusoze wakuthola. Unesitshalo esincane se-asphalt esixutshwe kahle futhi uphumelela ngisho kumaphrojekthi afanayo amane kuya kwamahlanu, futhi uthola inkululeko yokuhlela ezokhokhwa yi-GCs. O, futhi ukwehla kwenani? Amanani okuthengisa kabusha ahlala cishe ku-70% ngemva kweminyaka emithathu ngoba isidingo siqhubeka sidlula ukunikezwa.

Ingabe Ingahlangabezana Nezindinganiso Zemvelo Ngaphandle Kokuthulula Isikhwama Sakho Semali?

Impendulo emfushane: yebo. Izitshalo ezincane eziningi manje ziza nesikhwama esakhelwe ngaphakathi esingu-40 000 Nm³/h esigcina i-PM ingaphansi kuka-20 mg/m³—ngaphansi kakhulu kwemingcele ye-US EPA MACT. Faka i-venturi wet-scrubber bese uzonciphisa ama-VOC abe ngaphansi kuka-50 mg/m³, okugcina amakhasimende aseYurophu ejabule. Icebo yi-variable-frequency feeder: iyakhuphuka uma umisa i-pug-mill, ukuze ungashisi amalitha ama-5 ngehora ngesikhathi sekhefu lekhofi. Icebiso lochwepheshe: cela umhlinzeki ukuthi akunike ikhithi ye-LPG "yokuxhuma nokudlala" ; ukuguqula kusuka kudizili kwehlisa i-CO₂ ngo-18% futhi ngokuvamile kufanelekela ukuthola amakhredithi e-carbon esifundeni. I-Cha-ching.

Ungakusheshisa Kangakanani Ukusuka KuJobe Kuya KuJobe?

Izinombolo zangempela: amadoda amathathu, i-forklift eyodwa engu-12-k, kanti isitshalo sikulungele ukufakwa nge-skid emahoreni angu-4-5. Qhathanisa lokho nesitshalo esingamathani angu-200 esidinga i-crane engu-40-ton, izisekelo ezizinikele, kanye namasonto amabili okulinganisa. Omunye umakhi waseFlorida esixoxe naye uthutha iyunithi yakhe engu-25 tph kabili ngenyanga; uhlela u-US$1 200 ngokufuduka okuhlanganisa udizili, ama-burger esikhathi esengeziwe, kanye nesikhathi esingenakugwenywa sokuthi "u-Allen-key-ukuphi". Lokho kuhamba kumvumela ukuthi abhide emigwaqweni yepaki yesifundazwe ekude abadlali abakhulu abayishaya indiva, egcina incwadi yakhe yama-oda unyaka wonke.

Ingabe Usayizi Uthinta Ikhwalithi Yokuxuba Noma Ukuhlukahluka?

Ngokumangalisayo, cha. I-pug-mill elawulwa yi-frequency-shaft inika isikhathi sokugcina imizuzwana eyi-12—efana nezitshalo ezinkulu—ngakho-ke ukuzinza kwakho kwe-Marshall kuhlala ngaphezu kwama-kN ayi-9. Udinga i-bitumen eguquliwe nge-polymer? Vele uhlanganise ithangi elivundlile elingama-2 m³ nge-high-shear mill; yonke into engeziwe inesisindo esingama-t angu-1.8 futhi ixhunywa kwi-PLC yesitshalo nge-Profibus. Ufuna ingxube yebhayisikili enemibala? Shintsha i-filler silo ngothuli lwe-granite olubomvu bese ufaka imibala ku-1.8%. Umshini awunandaba; mncane nje, yilokho kuphela.

Ubani Osevele Eyichoboza Ngalezi Zitshalo?

• Inhlangano engenzi nzuzo yaseKenya esebenzisa imigwaqo yasemakhaya yehlise u-38% wezindleko zephrojekthi ngemuva kokushintsha ekuthengeni ingxube yezitshalo ebiza kakhulu eNairobi.
• Idolobha laseColorado elisebenzisa indawo yokushushuluza eqhweni lisebenzisa iyunithi engu-20 tph ukuphehla ama-patches endaweni ephakeme ngamamitha angu-2 800; i-PLC ilungisa ngokuzenzakalelayo ukushintsha komoya endaweni ephakeme.
• Inkampani yezimayini yase-Australia iqhuba isitshalo sikagesi esingama-tph angu-30 esisebenza ngamandla elanga, isindisa amalitha angu-14 000 kadizili minyaka yonke—okwanele ukuthola izaphulelo zikahulumeni kanye ne-green PR.

Yiziphi Izingibe Ezifihliwe Okufanele Uzigweme?

Okokuqala, ungawuthathi kancane umswakama ku-aggregate yakho engabonakali. Umehluko ongu-3% unganciphisa umthamo wokusebenza ngo-12% futhi unyuse ukusetshenziswa kukaphethiloli ngo-9%. Thenga imitha yomswakama eqondile ngo-US$3 k; i-ROI izovela emavikini amathathu. Okwesibili, xoxisana ngempahla yezingxenye ezisele nomthengisi ongaphambili—amabhande, izikrini, ama-solenoid—ngoba ukulinda amasonto ayisithupha ukuthola inzwa yamadola angu-30 ngenkathi umhloli wesifunda ethinta ibhodi lakhe lokunamathisela kubuhlungu kakhulu. (Yebo, sishiye leyo nkinga ngamabomu; kulimaza kakhulu ngaleyo ndlela.) Okwesithathu, qeqesha opharetha ababili bendawo ngaphambi kokuba ubuchwepheshe bomthengisi bubuyele ekhaya; ngaphandle kwalokho uzobhajwa ku-FaceTime ngo-2 ekuseni uzama ukuhumusha “i-pneumatic actuator” ngesiSwahili.

Ungayikhokhela Kanjani Imali Ngaphandle Kokudla I-Ramen Unyaka Wonke?

Ababolekisi bemishini abakhethekile bayayithanda le mpahla ngoba inani lokuthengisa kabusha liqinile kakhulu. Lindela i-APR engu-6.5–7.5% ezinyangeni ezingu-60 ngo-20% wehlisiwe; abanye abathengisi banikeza umusa wezinyanga ezingu-12 "wesizini" lapho weqa khona izinkokhelo zikaJanuwari noFebhuwari. Ukuqasha kuyasebenza futhi—US$2 800/ngenyanga ngesitshalo esingu-US$180 k, ukuthengwa ku-15% esele. Okokugcina, hlola ukuthi isifunda sakho sinikeza yini imali mboleko yokonga amandla yamabhizinisi amancane; isikhwama se-COSME se-EU simboza kufika ku-50% we-invoyisi uma isitshalo sakho sifinyelela ukonga kokushisa okungu-15% kunobuchwepheshe besikhathi esidlule.

Iphuzu Elibalulekile: Ingabe Kufanele Ukhiphe I-Trigger?

Uma imali yakho yonyaka esetshenziswa yi-asphalt idlula ama-US$250 k, uyakwazisa ukulawula ishejuli, futhi uzimisele ukunakekela umswakama kanye nezingxenye ezisele, isitshalo se-asphalt esincane esishisayo siyinto elula kakhulu. Ngeke sithathe indawo ye-behemoth engu-200 tph enkulu endaweni ephakathi kwezifundazwe, kodwa sizokuvumela ukuthi uqedele imisebenzi emincane egcina amarejista emali ecula—kanye nama-trackers amagama angukhiye e-Google acindezelayo.