Isitshalo Se-Asphalt se-TTM - Umkhiqizi Wemishini Yokuxuba Nokuvuselela I-Asphalt Ochwepheshe Kusukela ngo-2004.
Wonke umakhi wokwakha imigwaqo uyazi intengo eyinhloko yemishini yokuxuba izitshalo ze-asphalt, kodwa abaqhubi abanolwazi kuphela abaqaphela ukuthi ukucushwa okungalungile kungachitha imali engakanani buthule. Kusukela ekushisweni kukaphethiloli ngokweqile kuya ezingxenyeni ezigugile ngaphambi kwesikhathi, izindleko ezifihliwe zingadlula i-invoyisi yokuqala. Ngakho-ke, ngaphambi kokuthi usayine leyo oda yokuthenga, ake sibheke ukuthi yini ehlukanisa izitshalo ezinenzuzo nezitshalo ezinkulu ezichitha imali eningi.
Isitimela semishini yokuxuba izitshalo ze-asphalt sinamandla kuphela uma sinokuxhumana okubuthakathaka kakhulu. I-dryer, izikrini, i-pugmill, kanye ne-baghouse kumele zisebenze njenge-jazz quartet—nganye icula yodwa ngesikhathi esifanele. Yehluleka ukushaya okukodwa, bese yonke i-rhythm iyawa.
Futhi nansi indlela esheshayo yokuhlola iqiniso: uma umshini wakho wokushisa uneminyaka engaphezu kwemihlanu ubudala, cishe ushiya ukonga kukaphethiloli okungu-3–5%. Imishini yokulungisa kabusha izikhokhela yona ezinyangeni ezingu-14, iyaphumelela.
Uma ubheka ku-Google “imishini yokuxuba izitshalo ze-asphalt” uzocwila ezingxoxweni zengxoxo ezithi “iqembu lingcono kakhulu” noma “imithetho yedrama.” Iqiniso liwukuthi, impendulo ifihlakele ngobukhulu bomsebenzi obujwayelekile besifundazwe sakho.
Izitshalo eziningi ziyakhanya uma ubhekana nokuxubana okusebenza isikhathi esifushane, okune-spec ephezulu—cabanga ngezifundo zokungqubuzana kwesikhumulo sezindiza noma i-SMA eguquliwe nge-polymer. I-pugmill engamathani ama-5 ikunikeza ukulawula kokuhlinzwa phezu kwegremu ngayinye. Abaxubi bezigubhu abaqhubekayo, ngakolunye uhlangothi, bathanda ukudonsa okude lapho ungavala khona ibanga bese uphonsa i-400 tph ngaphandle kokucwayiza.
Isexwayiso sokushintsha: Ngisho nangemva kokukhetha ifilosofi, icebo langempela ukucacisa ukusethwa kwesilo. Ukucushwa kwesitoreji esishisayo esingamathani angu-300 kungavimbela ishifti yokuhamba ngezinyawo yamahora angu-12, kususe imigqa yamaloli abizayo ecasula abahloli be-DOT.
Ake sixoxe nge-turkey—uphethiloli ungadla ama-60% ezindleko zokusebenza. Izimbangela? Ukulungiswa kabi kokushisa, imigudu evuzayo, kanye naleyo "compressor" yomoya encane engu-200 cfm okhohliwe ukuyihlukanisa ebusuku. Faka ama-VFD kufeni yakho edonswayo futhi uzonciphisa amanye ama-4% ebhilidini likagesi. Akuyona isayensi ye-rocket, kodwa ngokuqinisekile kuyakhokhela irenti.
Imishini yokuxuba izitshalo ze-asphalt yesimanje ithunyelwa ngamaphaneli e-PLC alungisa isilinganiso somoya-fuel sesishisi ngesikhathi sangempela. Faka isango lamafu bese isitshalo sikuthumelela umyalezo lapho ama-trunnion bearings efika ku-180 °F—amahora ngaphambi kokuba kube nokuma okukhulu. Omunye umakhi waseFlorida ungitshele ukuthi isikhathi sokungasebenzi sehle ngo-37% ngonyaka wokuqala ngemuva kokufaka ama-alamu akude. Hhayi kabi, akunjalo?
Khohlwa umqondo wokuthi “ukugijima ukuze wehluleke”. Kunalokho, hlela ukuskena kwe-infrared kwekota ngayinye kumabhande e-elevator; ukuskena kwe-$300 kungabikezela umlilo webhande le-9,000. Gcoba izivalo zakho zomnyango we-pugmill nsuku zonke—imizuzwana engama-30 isindisa u-$2,000 wokufaka esikhundleni somnyango. Futhi izipele ezibalulekile zesitoko: injini eyodwa ebanjwe engu-200-hp ingavimba sonke isitshalo izinsuku ezimbili, okukubiza u-$40 k ekukhiqizweni okulahlekile.
Izithasiselo ze-carbon efudumele ephansi azisekho ezingeni elifanele; zicatshangelwa ku-40% wamaphrojekthi amasha ase-US. Tshala imali kukhithi ye-bitumen ene-foam manje futhi uzobhida ama-RFP akusasa ngaphandle kokulungiswa okubizayo. Izishisi ezilungele i-hydrogen nazo ziseduze—abasebenzisa kusenesikhathi bangafaka amakhredithi e-carbon abiza u-$8 ngethani lengxube. Qaphela leso sikhala.
Imishini efanele yokuxuba isitshalo se-asphalt ayibizi kakhulu—iyinjini enenzuzo. Gxila ekhwalithini yezingxenye, fanisa isitayela sesitshalo nomsebenzi wakho ojwayelekile, bese usebenzisa okuzenzakalelayo ukuze ubambe izinkinga ngaphambi kokuba ziqhume. Yenza lokho, uzohleka uze ufike ebhange ngenkathi abancintisana nabo benakekela amasela abo kaphethiloli afihliwe.