Ngaba iSityalo seAsphalt esiNcinci esiXhotyiswayo sesona siTyalo-mali siLungileyo kwiiprojekthi zeNdlela ezincinci?
Kutheni Abakhi Bezakhiwo Bethetha Ngezityalo Ze-Asphalt Ezincinci Ezishushu?
Ngena kuyo nayiphi na indawo encinci yokulungisa iindlela ukusuka eTexas ukuya eThailand kwaye uya kuva ingxolo efanayo: “Besingayigqiba le ndawo ngesiqingatha sexesha ukuba besinesityalo se-asphalt esixutywe ngobushushu esincinci kwindawo leyo.” Ingxolo ivakala ngesizathu. Izityalo zedrama zemveli zakhiwe ngemisebenzi engaphezu kwama-200 eetoni ngosuku, kodwa uninzi lwezithili kunye nabaphuhlisi bezindlu bafuna kuphela iitoni ezingama-20-50 ukuze kugcinwe imingxuma. Isityalo se-asphalt esixutywe ngobushushu esincinci sizalisa eso sithuba ngaphandle kweentlawulo zokuthutha ezi-6 okanye i-circus yemvume yenyanga yonke. Ngamafutshane, yindlela efanelekileyo yobukhulu ekugqibeleni efikelele kwi-asphalt.
Yintoni Efanelekileyo Njengesityalo "esincinci"?
Abantu abangaphakathi kushishino badla ngokuthi nayiphi na iyunithi yokuhamba ngesantya esiphantsi okanye ukuhamba ngesantya esilinganayo phantsi kwe-80 tph "incinci," kodwa indawo entle kakhulu kubasebenzi bendlela yi-10-40 tph. Ezi matshini zingena kwilori enye enesicaba, zisela ipetroli kwi-6-7 L ngetoni, kwaye zinokuqhutywa ziingcali ezimbini ezaziyo ngokwenene ukusebenzisa i-app yefowuni. Iimodeli ezincinci ezinezikhongozeli zingena ngaphakathi kwisikhongozeli se-HQ esingama-40-ft, ukuze ukwazi ukusithumela kwiprojekthi elandelayo yesiqithi ngaphandle kokuhlawula amaxabiso emithwalo ekhululekileyo. Kwaye, ewe, basafikelela kwiqondo lobushushu elixutyiweyo le-150 °C elichazwa yi-DOTs—akukho ndlela zimfutshane kumgangatho.
Ixabisa malini iMini Hot Mix Asphalt Plant—Ngenene?
Amaxabiso ezitikha atshintsha ukusuka kwi-US$110 k kwiyunithi esisiseko ye-10 tph ukuya kwi-US$350 k kwimodeli ye-40 tph ene-RAP feed kunye netanki yebitumen. Kuvakala ngathi kukhulu de ube uqhuba izibalo: ukuqesha isityalo sorhwebo esikumgama weemayile ezingama-40 kubiza i-US$18–22 ngetoni nganye kwiindleko zokuthutha zodwa. Kumsebenzi wokwahlulahlula iitoni ezingama-5 000, loo nto yi-US$90 k–110 k awusoze ubuye. Unesityalo se-asphalt esixutywe ne-hot mix kwaye uyaphumelela kwiiprojekthi ezine ukuya kwezintlanu ezifanayo, kwaye ufumana inkululeko yokucwangcisa eya kuhlawula iprimiyamu yi-GCs. Owu, kwaye ukwehla kwexabiso? Amaxabiso okuthengisa kwakhona ajikeleza malunga ne-70% emva kweminyaka emithathu kuba imfuno iyaqhubeka idlula unikezelo.
Ngaba Ingahlangabezana Nemigangatho Yendalo Ngaphandle Kokuchitha Isikhwama Sakho?
Impendulo emfutshane: ewe. Uninzi lwezityalo ezincinci ngoku ziza ne-40 000 Nm³/h eyakhelwe ngaphakathi egcina i-PM ingaphantsi kwe-20 mg/m³—ingaphantsi kakhulu kwimida ye-US EPA MACT. Yongeza i-venturi wet-scrubber kwaye uya kunciphisa ii-VOC ukuya kwi-<50 mg/m³, nto leyo egcina abathengi baseYurophu bonwabile. Icebo liyi-variable-frequency feeder: iyanyuka xa umisa i-pug-mill, ukuze ungatshisi iilitha ezi-5 ngeyure ngexesha lekhefu lekofu. Icebiso lobungcali: cela umthengisi ukuba akunike ikiti ye-LPG "yokufaka i-plug-and-play" ; ukuguqula ukusuka kwidizili kwehlisa i-CO₂ nge-18% kwaye kudla ngokufaneleka ukufumana iikhredithi zekhabhoni zengingqi. Cha-ching.
Ungawususa Kangakanani Umsebenzi KaYobhi Uwuse KuYobhi?
Amanani okwenyani: amadoda amathathu, i-forklift enye ye-12-k, kwaye isityalo silungele ukufakwa kwi-skid kwiiyure ezi-4-5. Thelekisa oko nesityalo esingashukumiyo seetoni ezingama-200 esifuna i-crane yeetoni ezingama-40, iziseko ezizinikeleyo, kunye neeveki ezimbini zokulinganisa. Omnye umakhi waseFlorida esimxoxile naye utshintsha iyunithi yakhe ye-25 tph kabini ngenyanga; uhlahlo-lwabiwo mali lwe-US$1 200 ngokufuduka ngakunye kuquka idizili, iiburgers zexesha elongezelelweyo, kunye nexesha elingenakuphepheka elithi "uphi-u-Allen-key". Oko kuhambahamba kumvumela ukuba abhide kwiindlela ezikude zepaki karhulumente ezingakhathalelwa ngabadlali abakhulu, egcina incwadi yakhe yee-odolo unyaka wonke.
Ngaba Ubungakanani Buchaphazela Umgangatho Womxube Okanye Ukwahluka?
Okumangalisayo kukuba, hayi. I-pug-mill elawulwa rhoqo inika ixesha lokugcina imizuzwana eli-12—elifana nezityalo ezinkulu—ngoko ke uzinzo lwakho lweMarshall luhlala lungaphezulu kwe-9 kN. Ngaba ufuna i-bitumen eguqulwe yi-polymer? Faka nje itanki ethe tyaba eyi-2 m³ ene-high-shear mill; yonke into eyongeziweyo inobunzima be-1.8 t kwaye ihoka kwi-PLC yesityalo ngeProfibus. Ngaba ufuna umxube we-bicycle-lane onemibala? Tshintsha i-filler silo ngothuli lwe-granite olubomvu kwaye ufake i-pigments kwi-1.8%. Umatshini awukhathali; mncinci nje, yiyo loo nto kuphela.
Ngubani Osele Eyityumza Ngezi Zityalo?
- I-NGO yaseKenya ejongene neendlela zasemaphandleni inciphise i-38% yeendleko zeprojekthi emva kokutshintsha ekuthengeni umxube wezityalo obiza kakhulu eNairobi.
- Idolophu yaseColorado enendawo yokutyibiliza iski isebenzisa iyunithi ye-20 tph ukupeyinta iipatches kwindawo yokuphakama eyi-2 800 m; i-PLC iyazilungisa ngokuzenzekelayo xa ijongana notshintsho loxinano lomoya oluphezulu.
- Inkampani yemigodi yase-Australia iqhuba isityalo esisebenza ngamandla elanga angama-30 tph, igcina iilitha ezili-14 000 zedizili ngonyaka—ezaneleyo ukufumana izaphulelo zikarhulumente kunye ne-green PR.
Zeziphi Iingxaki Ezifihlakeleyo Okufuneka Uziphephe?
Okokuqala, musa ukuyithatha lula i-humidity kwi-aggregate yakho eyi-virgin. Umahluko we-3% unokunciphisa i-throughput nge-12% kwaye wonyuse ukusetyenziswa kwepetroli nge-9%. Thenga i-inline moisture meter nge-US$3 k; i-ROI iyavela kwiiveki ezintathu. Okwesibini, thethana nge-spare-parts stock nomthengisi ongaphambili—ii-belts, ii-screens, ii-solenoids—kuba ukulinda iiveki ezintandathu kwi-sensor ye-30 yeedola ngelixa umhloli wesithili ecofa i-clipboard yakhe kuyabuhlungu. (Ewe, sishiye loo typo ngabom; ibuhlungu ngakumbi ngaloo ndlela.) Okwesithathu, qeqesha abaqhubi ababini basekuhlaleni ngaphambi kokuba itekhnoloji yomthengisi ibuyele ekhaya; kungenjalo uza kubanjwa kwiFaceTime ngo-2 kusasa uzama ukuguqulela "i-pneumatic actuator" kwisiSwahili.
Ungayixhasa njani imali ngaphandle kokutya iRamen unyaka wonke?
Ababolekisi bezixhobo ezikhethekileyo bayayithanda le mpahla kuba ixabiso lokuthengisa kwakhona liqinile. Lindela i-APR eyi-6.5–7.5% kwiinyanga ezingama-60 kunye ne-20% yehle; abanye abathengisi banikezela ngesipho seenyanga ezili-12 "sexesha" apho ungahlawuli khona iintlawulo zikaJanuwari noFebruwari. Ukuqeshisa kuyasebenza nako—i-US$2 800/ngenyanga kwisityalo se-US$180 k, ukuthengwa nge-15% eseleyo. Okokugqibela, jonga ukuba ummandla wakho unika imali mboleko yokonga amandla yamashishini amancinci; ingxowa-mali ye-COSME ye-EU igubungela ukuya kuthi ga kwi-50% ye-invoyisi ukuba isityalo sakho sifumana ukonga kobushushu kwe-15% ngaphezu kobuchwepheshe obudala.
Ingongoma ephambili: Ngaba ufanele utsale i-trigger?
Ukuba inkcitho yakho yonyaka ye-asphalt ingaphezulu kwe-US$250,000, uyayixabisa indlela olawula ngayo ishedyuli, kwaye uzimisele ukugcina umswakama kunye nezinye izinto ezingasetyenziswayo, isityalo se-asphalt esixutywe kakuhle silula kakhulu. Asiyi kuthatha indawo ye-200 tph enkulu kwi-interstate, kodwa siya kukuvumela ukuba uchithe iikhilomitha ezininzi zemisebenzi emincinci egcina iirejista zemali zicula—kunye namagama angundoqo e-Google acofayo.
