Kodi Chomera cha Asphalt Chimagwira Ntchito Bwanji Ndipo Chimakhalabe Chopanda Chilengedwe?

Kodi Munayamba Mwadzifunsapo Kuti N’chiyani Chimachitika Kumbuyo kwa Stack?

Nthawi iliyonse mukayenda mumsewu watsopano, mumakhala mukuyendetsa galimoto kudutsa fakitale yaying'ono ya mankhwala yomwe kale inkatentha kwambiri pa 180 °C. Koma kodi fakitale ya phula imagwira ntchito bwanji, ndipo n'chifukwa chiyani makontrakitala, amalonda, kapena ngakhale anthu oyenda pansi omwe amasamala zachilengedwe ayenera kusamala? Pitirizani—pomaliza kuwerenga mwachidule uku mudzatha kuyenda pamalo aliwonse antchito ndikulankhula ngati kuti ndinu mwini wa malowo.

Kayendedwe ka Ntchito Koyambira: Kuchokera ku Aggregate mpaka Hot-Mix

Pamtima pake, chomera cha phula ndi mgwirizano wolondola wa kutentha, chemistry, ndi mechanical physics. Mndandanda wake nthawi zambiri umakhala wofanana:

1. Mabanki odyetsera chakudya chozizira amatulutsa zinthu zosakaniza (mwala, mchenga, RAP) pa chonyamulira cha lamba pamlingo wokonzedweratu.
2. Chophimba cha scalping chokhala ndi malo ambiri chimagunda miyala yayikulu kwambiri kuchokera pansi pa madzi—inde, “kunja” ndi momwe anthu obzala zomera amanenera—chisanagwere m'ng'oma.
3. Chowumitsira chozungulira chimakweza kutentha konse kufika pa ±160 °C pomwe choyatsira chimayatsa moto nthawi yayitali kuposa basi ya sukulu.
4. Chikepe chotentha chimanyamula zinthu zoumazo kupita nazo pamwamba pa nsanja kumene zimagwera m'madesiki otchingira ndi m'mabinki otentha.
5. Bitumeni imapopedwa kuchokera ku matanki otetezedwa ndi insulated ndipo imabayidwa kudzera mu spray bar; filler (laimu, simenti) imayesedwa kuti isinthe kukhuthala.
6. Chosakaniza cha Pugmill kapena twin-shaft chimasakaniza chilichonse kwa masekondi asanu ndi limodzi okha—nthawi yake ndi yofunika chifukwa phula limauma mwachangu.
7. Malo osungiramo katundu amasunga zinthu zotentha zomwe zamalizidwa mpaka magalimoto atafika, zomwe zimapangitsa kuti fakitale igwire ntchito bwino m'malo moyimitsa.

Kusintha kuchoka pa gulu kupita ku lopitirira? Palibe nkhawa. Zipangizo zosakaniza ng'oma zimapinda masitepe 3-6 kukhala ng'oma imodzi yayitali, kusintha njira yolondola yophikira kuti pakhale mphamvu yotulutsa tani pa ola limodzi yokwera ndi 20%.

Zigawo Zofunika Zomwe Palibe Amene Amalankhulapo

1. Kola ya RAP

Palavimenti ya asphalt yobwezeretsedwa (RAP) simangotayidwa mkati; imalowa kudzera mu kolala ya mid-drum komwe virgin aggregate yomwe yatenthedwa kale kufika pa 180 °C imayatsa chinyezi popanda kuyatsa bitumen yakale. Kutentha kwambiri ndipo mumapeza utsi wabuluu; kuzizira kwambiri ndipo mumapeza chisokonezo chomata komanso chosagwirizana.

2. Chikwama cha Zikwama & Kujambula Kwachiwiri

Mpweya wotulutsa utsi ukatuluka mu ng'oma, thumba la pulse-jet baghouse limasunga tinthu tating'onoting'ono mpaka 1 micron. Zomera zamakono zimalowetsa carbon kapena laimu slurry ku nail polycyclic aromatic hydrocarbons (PAHs). Zotsatira zake: kuonekera kwa stack pansi pa 10%, komwe kumaposa ma chimney ambiri opangidwa ndi khofi.

3. Chophimba Chotenthetsera cha Silo Chotulutsa

Kodi munayamba mwaonapo momwe ma silo ena amawala pang'ono usiku? Chophimba chimazungulira kutentha kwa mulu mozungulira silo cone, kuletsa "malo otentha" omwe amawonjezera phula ndikusintha kusakaniza kwanu kokwera mtengo kukhala popcorn wosalimba.

Kuchotsa Nthano Zachilengedwe

"Zomera za asphalt ndi zilombo zotulutsa utsi." Mzere umenewo ndi wa m'ma 1970. Kuyambira pamene mayeso a EPA Method 9 anayamba kugwiritsidwa ntchito, mpweya woipa pa tani imodzi ya zosakaniza watsika ndi 97%. Ma burners otsika a NOx, ma frequency drives osinthasintha pa mota iliyonse, ndi zowonjezera zotentha zomwe zimachepetsa kutentha kwa kupanga kufika pa 135 °C zonse zikuwonjezeka. Mfundo yofunika: tsopano mumatulutsa mphamvu zochepa zogwiritsa ntchito chomera cha matani 200 pa ola limodzi kuposa momwe amalume anu ankagwiritsira ntchito phula limodzi.

Kusintha kwa digito & Kusamalira Zinthu Mosayembekezereka

Masensa olumikizidwa ndi mitambo amatsatira kugwedezeka kwa lamba, kugwedezeka kwa mabearning, ndi kuyaka kwa lawi la burner. Magalimoto ophunzirira makina amawonetsa zolakwika milungu ingapo lamba wozizira asanadule nthawi ya 2 koloko m'mawa—ndikhulupirireni, palibe amene akufuna kupanga cholumikizira pogwiritsa ntchito tochi. Pazaka 25 za moyo wa fakitale, kusanthula kwamtsogolo kumatha kusunga ndalama zokwana US $1.2 miliyoni panthawi yosagwira ntchito.

Chitsanzo cha ROI cha Dziko Lenileni

Chigawo cha Midwestern chinasintha kuchoka pa 100% virgin kufika pa 40% RAP mix. Mtengo woyamba: US $180 k kuti mupeze kolala yatsopano ya RAP ndi sikirini. Kubweza: Miyezi 14 chifukwa cha ndalama zokwana US $110 k pachaka zomwe zinagwiritsidwa ntchito popanga zinthu za virgin aggregate ndi bitumen. Bonasi: njira yolimba ya msewu inakula ndi 8%, chifukwa bitumen yokalamba bwino imalimbitsa mastic. Sizoipa chifukwa cha "zinyalala" zomwe mapepala akale amakuuzani kuti muchotsere zinyalala.

Mavuto Ofala ndi Kukonza Mwachangu

• Chinyezi mu RAP: Chivundikiro cha chivindikirocho chili pamtunda wa mamita 3, phimbani ndi ma tarps, ndipo nyamulani patsogolo poyamba.
• Utsi wabuluu: Chepetsani kutentha kwa ng'oma ndi 10 °C ndipo onani chiŵerengero cha mpweya ndi mafuta mu burner; nthawi zambiri zimakhala zambiri.
• Kugawanitsa mu silo: Ikani choyikapo cha cone choyenda movutikira; chimawononga US $5 k, ndikusunga matani 50 a zosakaniza zomwe zimatayidwa pamwezi.

Zochitika Zamtsogolo Zoti Muzionere

Makampani opanga mafakitale akuyesera zoyatsira hydrogen ndi 60% RAP mixes pogwiritsa ntchito bio-rejuvenators zochokera ku pine resin. Ngati carbon credits ikadali pamwamba pa US $70 pa tani, yembekezerani kuti makampani oyamba adzapezanso ndalama zokonzanso mkati mwa zaka zosakwana zinayi. Pakadali pano, zida zotenthetsera thovu zomwe zimakonzedwanso pafakitale iliyonse yomwe ilipo zikutsika pansi pa US $30 k, zomwe zikutanthauza kuti ngakhale ma pavers ang'onoang'ono amatha kuyitanitsa mapangano a "green highway" akasungidwa kwa anyamata akuluakulu.