Kodi Chomera Chotentha Chosakanikirana ndi Asphalt Chingachepetsedi Ndalama Zanu Zogulira Pakhoma ndi Pakati?

Chifukwa Chake Opanga Makontrakitala Akusinthira ku Chomera Chotentha Chosakanikirana ndi Asphalt—Ndipo Inunso Mungathe

Masika aliwonse, madipatimenti amisewu ikuluikulu ndi ma pavers achinsinsi amakumana ndi vuto lomweli: ndalama zonyamulira katundu zikukwera kwambiri pomwe mawindo a ntchito akuchepa. Lowani mu fakitale ya asphalt yonyamula , yomwe ingathe kukokedwa, yodziyikira yokha yomwe imalonjeza kusakaniza kwatsopano mkati mwa mphindi 20 kuchokera pamene yafika. Zikumveka zolimba, sichoncho? Komabe deta ya boma ya DOT yochokera ku Texas ndi Georgia ikuwonetsa kuti makontrakitala akuchepetsa 18–24% kuchotsera pa zinthu zomwe agwiritsa ntchito pambuyo pa nyengo yoyamba. Chinsinsi si ufiti; ndikuchotsa ulendo wa makilomita 60 wopita ndi kubwerera kupita ku chowumitsira chapafupi. Magalimoto ochepa pamsewu, dizilo yotayika pang'ono, ndipo—nayi mfundo yaikulu—palibe kusakaniza "kofewa" usiku wonse komwe kuyenera kutenthedwanso m'mawa wotsatira.

Kodi Ukadaulo Umagwira Ntchito Bwanji Poyenda?

Taganizirani kalavani ya mamita 40 yokhala ndi zitini zitatu zopindika: virgin aggregate, RAP, ndi fumbi la baghouse. Chodyetsa cha ma frequency osinthasintha chimayesa madzi aliwonse kupita mu sikirini ya triple-deck, kenako chimaponya magawo olemera bwino mu ng'oma ya mamita 6 yotsutsana ndi madzi. Choyatsira chimakwera kufika pa 1,600 °F mkati mwa mphindi zitatu chifukwa cha atomizer yothamanga kwambiri. Pamene ng'oma ikuzungulira, PLC imatsata chinyezi chozungulira ndikukonza yokha jakisoni wa bitumen. Shebang yonse imayendetsedwa ndi genset ya 350-kW yomwe imafika pa Tier-4 Final—kotero mutha kuyitanitsabe ntchito ku California popanda kusokoneza mapepala. Mwachidule, mumapeza kulondola kwa chomera chokhazikika ndi chizindikiro cha ulendo wa carnival.

Dikirani, Nanga Bwanji Zokhudza Zilolezo za EPA?

Funso la madola miliyoni. Mitundu yambiri ya fakitale ya asphalt yosakanikirana ndi kutentha imatumizidwa ndi EPA "Chilolezo Chamtundu Wathunthu cha Magwero Ang'onoang'ono" chopakidwa kale. Kumasulira: ngati kupanga kwanu kupitirira matani 100,000 pachaka ndipo mumawotcha gasi wapaipi kapena dizilo ya sulfure yochepa kwambiri, kwenikweni muli panjira yofulumira. Maboma ena akufunabe chidziwitso cha anthu cha masiku 30, koma zimenezo zikuposa nkhani ya miyezi 18 yomwe ikufunika pa malo osungira magetsi a 400-tph. Malangizo abwino: sungani kopi ya chitsimikizo cha mpweya woipa wa wopanga m'bokosi la magolovesi; oyang'anira amakonda kuwona "≤0.04 lb PM-10 pa tani" yolembedwa molimba mtima Arial.

Kuchepetsa Manambala: ROI mu Nyengo Imodzi

Tiyeni tiwerenge mwachidule za pulojekiti yokonzanso misewu ya m'boma ya makilomita awiri:

• Kunyamula katundu wamba (fakitale yosasuntha): Makilomita 42 → $11.30 pa tani imodzi.
• Kuchuluka kofunikira: matani 18,000.
• Kutopa kwambiri chifukwa cha kuchedwa kwa sabata: 3%.

Ndalama zonse zowonjezera: ≈ $230,000. Chomera cha asphalt chosakanikirana ndi kutentha chapakatikati chimabwereka $35,000 pamwezi, kuphatikizapo kuwerengera. Ngakhale mutachisunga kwa miyezi itatu, mumalipirabe $125,000 mumdima—musanawerenge mabhonasi a usiku kapena zilango zotenthetsera. Ndipo ndanena kuti mutha kuchisamutsa kuchigawo china mkati mwa maola osachepera asanu ndi atatu? Inde, zimenezo zasintha kwambiri .

Kuchotsa Nthano: "Kunyamula Kumatanthauza Kutsika Mtengo"

Atsogoleri akale amalumbira kuti mukufunika nsanja yosasuntha ya 150-ft kuti mufike pa 96% ya kuchuluka kwa Marshall. Kuwona zenizeni: makina osakaniza ng'oma amakono amafika pa 98% mkati mwa ±0.3% ya bitumen deviation, yotsimikiziridwa ndi ma nuclear gauges omwe ali m'bwato. Chinsinsi chake ndi ma paddle osinthasintha omwe amawonjezera nthawi yokhalamo ndi masekondi 12—kutalika kokwanira kuti iphimbe bwino, yochepa mokwanira kuti ipewe utsi wabuluu. Ngati pali chilichonse, kusakaniza kumakhala kwatsopano chifukwa palibe silo hold ya mphindi 45. Chifukwa chake nthawi ina wina akadzakuuzani kuti "lukewarm tar" ndi "lukewarm tar," muitaneni ku tsiku lanu lotsatira la chitsanzo cha core. Chodabwitsa: ma cores adzalankhula mokweza kuposa mawu anu onyoza.

Zinthu 3 Zoti Simuyenera Kuzinyalanyaza

1. Njira Yotenthetsera: Ma burner amafuta awiri amasunga $1.10 pa tani mukasintha kupita ku LNG pakati pa ntchito.
2. Nyumba zosungiramo katundu (baghouse delta-P):

Malire a 5.5-in wc amasunga matumba amoyo kwa maola 3,000 ogwira ntchito, osati 1,800.

3. Kukhuthala kwa slat yokoka: Ma liners a chromium-carbide a mainchesi ⅜ amachepetsa nthawi yosinthira ndi 40%.

Kuchokera ku Misewu ya Mzinda mpaka ku Malo Osewerera Mphepo: Malo Ogwiritsira Ntchito Zinthu Zenizeni

Mu Julayi watha, kampani yamagetsi yaku Colorado idafunikira matani 11,000 a phula lamphamvu kwambiri kuti ligwiritsidwe ntchito polowera ku famu yamphepo yomwe idakwera ndi 11%. Chomera chimodzi chosakanikirana ndi kutentha chonyamula chinapanga phula pa 340 °F, makilomita 20 kuchokera pa chingwe chamagetsi chapafupi. Ogwira ntchito adapanga phula 2,300 ft pa shift iliyonse, adapambana nyengo yamvula, ndipo anali ndi nthawi yofufuza mafakitale opanga mowa am'deralo - chifukwa, hei, mgwirizano wa ntchito ndi moyo, anthu. Nkhani zofananazi zikubuka m'misewu yodula mitengo ku Ontario ndi m'mabwalo opaka mafuta ku Texas. Nkhani yofanana? Nthawi yocheperako, malo akutali, komanso kulekerera konse malo ozizira.

Kugula ndi Kubwereka: Ndi Njira Iti Yoyenera Kutsatira?

Ngati kuchuluka kwanu pachaka kupitirira matani 80,000 ndipo muli ndi zaka zosachepera zisanu zotsalira, kugula zinthu zotsika mtengo pa tani imodzi kumafika pansi pa $2.80. Mitengo yandalama ndi yabwino pakali pano—ganizirani 5.9% APR m'miyezi 72. Kumbali ina, kubwereka kumasunga ndalama zogwirira ntchito ndipo kumakupatsani mwayi woyesa ukadaulo watsopano nyengo iliyonse. Mapangano ophatikizana—kubwereka ndi kugula 30%—akuyambanso kutchuka. Njira iliyonse yomwe mungasankhe, limbikirani maphunziro oyambira fakitale; maphunziro a masiku awiri a cert angalepheretse kubweza ndalama zokwana $40,000 pamtengo wotsika kwambiri.

Mavuto Omwe Amafunika Kukonzedwa—Ndi Momwe Mungapewere

Inde, kabuku kotsatsa malonda kamanena kuti "opanda mafuta odzola," koma muyenerabe kudzola mafuta ozungulira ma drum thrust maola 250 aliwonse. Dumphani kamodzi, ndipo drum imakwawa ngati mwana wakhanda akumwa espresso. Kodi cholakwika china chatsopano? Kunyalanyaza fyuluta ya DEF ya genset; SCR yotsekedwa ikhoza kusokoneza chomera chonse, kukusiyani ndi 50 tph m'malo mwa 120 tph. Sungani fyuluta ya $28 mu tote ya ziwalo, isintheni tsiku lamvula, ndipo ndinu wagolide. Ndikhulupirireni, woyang'anira polojekiti yanu adzakuthokozani nthawi ikadzafika sabata yamawa.

Mfundo Yofunika Kuiganizira: Kuyenda Ndiko Kupindula

Kaya mukukonza mabowo pakati pa mzinda kapena kumanganso misewu yachiwiri m'mitengo, fakitale yonyamula phula yosakanikirana ndi kutentha imachepetsa ndalama zomwe zimagwiritsidwa ntchito pokonza zinthu, kuchepetsa nthawi yogwirira ntchito, komanso kusunga khalidwe logwirizana. Kugwedezeka kwa sticker koyamba kumatha mukazindikira kuti mwangopeza ndalama zolipirira maphunziro aku koleji mu nyengo imodzi. Ndiye, kodi makina amodzi angachepetse ndalama zomwe mumawononga pokonza ndi theka? Masamu—ndi makilomita—amati inde. Chotsala ndikusintha, kusintha switch, ndikuwona ndalama zomwe zasungidwa ndi golide wakuda wotentha.