I-China Asphalt Hot Recycling Mixing Plant Slash ixabisa njani kwaye ixabisa njani i-Carbon ngo-2024?
Kutheni iShishini leHlabathi loKwakha iiNdlela lijonge iTekhnoloji yokuRisayikilisha eshushu yaseTshayina
Ukuba ukhe wajonga nakweyiphi na iforam yeziseko zophuhliso kutshanje, mhlawumbi ukhe wabona ingxolo ejikeleze isityalo sokuxuba izinto ezishushu ze-asphalt saseTshayina . Ezi nkqubo zithembisa ukutshintsha ukuya kuthi ga kwi-50% yee-virgin aggregates kunye ne-bitumen nge-recycled asphalt pavement (RAP), zinciphisa iindleko zezinto ezibonakalayo kakhulu. Kodwa ngaba le ngxolo ifanelekile, okanye liqhinga nje lokuthengisa "eliluhlaza"? Masingene kwidatha yokwenyani yeprojekthi endaweni yeencwadana ezikhazimlayo.
Kwenzeka Ntoni Kanye Kanye Ngaphakathi Kwe-Hot Recycling Mixer?
Izityalo zemveli zifudumeza ii-virgin aggregates ukuya kwi-170-180 °C, emva koko zigqunywe nge-bitumen entsha. Umxube oshushu wokuphinda usebenzise owenziwe eTshayina wongeza "i-RAP drying drum" eyongezelelweyo efudumeza i-asphalt egayiweyo ukuya kwi-130 °C kwigumbi elincitshiswe yioksijini. Oku kuthintela ukuguga kwe-binder ngelixa kuphuma umswakama. I-RAP eshushu kakhulu emva koko ixutywa nezinto ezishushu kakhulu, ngoko ke ubushushu bomxube wokugqibela buhlala malunga ne-155 °C—15 °C ngaphantsi kunemixube eqhelekileyo. Ubushushu obuphantsi bulingana namafutha amancinci, umsi omncinci, kunye nabamelwane abonwabileyo abahlala kufutshane nesityalo. Kulula nje, andithi?
Izinto Eziphambili Ezenza Umahluko
- Iibhini zokulinganisa ze-RAP ezifakwe isikrini esiphindwe kabini - susa iziqwenga ezinkulu ezidala amabala abandayo kumxube.
- Ukomisa okuhamba ngendlela efanayo ngee-sensors ze-infra-red - ukulungiswa kokufuma ngexesha langempela ngaphakathi kwe-±0.2%.
- Ukuqokelelwa kothuli olunezigaba ezintathu – isivunguvungu sokuqala, ingxowa-ndlu, kunye ne-wet scrubber kugcina ukukhutshwa kwe-PM kungaphantsi kwe-20 mg/m³, okufikelela kwiinkcukacha zaseCalifornia.
- Imigca yebhitumen enejacket yeoyile eshushu – gcina i-165 °C ngokuchaneka kwe-±2 °C, ukuthintela ukwahlukana ngexesha lokuhamba ixesha elide.
Ngaba i-50% ye-RAP ingamelana neTrafikhi enzima?
Abantu abathandabuzayo bakhathazekile kukuba imixube ye-RAP ephezulu iyaqhekeka phantsi kwemithwalo enzima yee-axle. Uphando lwango-2023 olwenziwe yiYunivesithi yaseChang'an lulandele indlela enkulu eya kwiphondo laseShandong eyakhiwe nge-48% ye-RAP kwindlela yokunxiba. Emva kwe-14.2 yezigidi zee-ESAL (imithwalo ye-axle enye elinganayo), i-International Roughness Index inyuke nge-0.8 mm/km kuphela, ngaphantsi kakhulu kwe-2.0 mm/km yokulungisa. Uhlalutyo lwe-Microscopic lubonise ukuba i-recycled binder yayine-complex modulus (G*) efana ne-virgin PG 76-22, ngenxa ye-polymer-modified rejuvenators eyongezwe kwi-0.6% ngobunzima bomxube. Inguqulelo: indlela yayiziphatha njengentsha, kodwa ibiza ngaphantsi nge-28%.
Izityalo zaseTshayina Zigcina Njani Inkcitho-mali Iphantsi Kangaka?
Abavelisi baseNtshona badla ngokubiza i-USD 5–6 yezigidi kwisityalo sokurisayikilisha esishushu esingama-240 tph. Isityalo sokurisayikilisha esishushu esifana ne-asphalt yaseTshayina sifikelela kwi-USD 2.8 yezigidi, nokuba sele sithunyelwe kwaye sihlawulwe ngerhafu yokungenisa impahla. Zintathu izinto ezibangela umsantsa:
- Ukudibanisa ngokuthe nkqo – iifektri zaseTshayina zenza izixhobo zazo zokutshisa, iibhokisi zegiya, kunye neekheji zokugcina iingxowa, zinciphisa iimpawu zomntu wesithathu.
- Isikali** – imfuno yasekhaya yeendlela ezinkulu idlula i-4 000 km ngonyaka, ngoko ke ababoneleli baqhuba imigca yemveliso iiyure ezingama-24 ngosuku, iintsuku ezisixhenxe ngeveki, benciphisa iindleko zeeyunithi.
- Inkxaso-mali karhulumente yezixhobo "eziluhlaza" - abathumeli ngaphandle bafumana isaphulelo se-VAT se-13%, inzuzo edluliselwa ngokuthe cwaka kubathengi bamanye amazwe.
I-ROI yeHlabathi lokwenyani: Uphononongo lweTyala laseNigeria
I-Lagos State Public Works ifumene isivumelwano somzi-mveliso waseTshayina ongama-200 tph kwikota yokuqala ka-2022, ijolise kwi-120 000 t yomxube weendlela ezidibanisa izikhululo zeenqwelo-moya. Ixabiso ledizili: i-USD 0.92 ngelitha; I-RAP ifumaneka simahla kwii-millings zasekuhlaleni. Ikhontraktha ifumene i-47% yomxholo we-RAP, isindisa i-31% kwi-bitumen kunye ne-22% kwi-aggregates. Imbuyekezo ifike kwiinyanga ezili-14—hayi iminyaka eli-10 yethiyori oyivayo kwiintetho zenkomfa. Ukongeza, ukukhutshwa kwe-CO₂ kwehle ngama-38%, kwanceda urhulumente welizwe ukuba ahlangabezane nezivumelwano zemali mboleko ze-AfDB. Ayimbi, akunjalo?
Kuthekani Ngenkxaso Emva Kokuthengisa—Iinxalenye Ezincinci Ziyingozi Okanye Ziyaguquguquka?
Abathengi babesoyika ukuba izixhobo zaseTshayina “ezingabizi” zithetha ukuba ixesha lokungasebenzi lihlala iiveki zilinde i-sensor ye-2 kg. Amaxesha atshintshile. Ii-OEM eziphezulu ngoku zisebenzisa iindawo zeendawo eNigeria, ePeru, nasePoland, zigcina i-90% yeeyunithi ezinokutshintshwa kwimigca kwisitokhwe sasekuhlaleni. Imodyuli ye-IoT enikwe amandla yiVPN kwisityalo ngasinye ithumela i-telemetry kwiChengdu HQ; ii-algorithms zokuqikelela zibonisa ikhonkco le-elevator eligugileyo iiyure ezili-150 zokusebenza ngaphambi kokuba lingasebenzi. Abathengi bafumana i-invoyisi ye-pro-forma ezenzekelayo kwaye banokukhetha i-DHL Express okanye i-local pickup. Ixesha lokungasebenzi liphakathi kweeyure ezili-1.8 ngeeyure ezili-1000 zokusebenza, ngokuhambelana neempawu zaseYurophu.
Isicwangciso-nkqubo Esilawulayo: Ngaba Ilizwe Lakho Liza Kuvumela I-50% RAP?
Ngaphambi kokuba ungene kwi-bandwagon, jonga iinkcukacha zasekuhlaleni. EFransi, i-NF P 98-150 standard ibeka i-RAP kwi-30% kwiindawo eziphezulu, kodwa iJamani ivumela i-50% ukuba umxube ophinda usetyenziswe uphumelele uvavanyo lwe-Alkali-Silica Reactivity. Okwangoku, amazwe aliqela ase-US asadlala ngemida ye-20%. Iindaba ezimnandi: isityalo sokuxuba esishushu se-asphalt saseTshayina sinokutshintsha phakathi kwe-15% kunye ne-60% ye-RAP ngokulungelelanisa nje isantya se-elevator kunye neprofayili ye-burner, ukuze uhlale uthobela ngelixa ucela ukuba kubekho imiqathango ephezulu.
Iphepha lokukhohlisa leenkcukacha ezikhawulezayo kubathengi bezityalo
| Ipharamitha | Isityalo esiqhelekileyo saseTshayina esingu-240 tph |
|---|---|
| Uluhlu lweRAP | 10–60 % |
| Ukusetyenziswa kwepetroli | I-5.2 kg yedizili ngomxube wetoni nganye @ 45% RAP |
| Isiqinisekiso sokufuma | ≤0.3 % kumxube wokugqibela |
| I-EI yesityalo (i-Energy Index) | 142 MJ/t (ISO 15695) |
| Thumela ikhowudi ye-HS | 8474.32 |
Ingongoma engundoqo: Ngaba utyalo-mali lufanelekile ngo-2024?
Njengoko ibhitumen irhweba nge-USD 520 ngetoni kwaye i-aggregates inyuka nge-9% unyaka nonyaka, ipesenti nganye ye-RAP igcina malunga ne-USD 7.40 ngetoni yomxube. Isityalo se-200 tph esisebenza iiyure ezingama-2 000 ngonyaka sivelisa i-400 000 tn; kwi-45 % RAP, oko kuthetha i-USD 1.33 yezigidi ezigciniweyo minyaka le. Cinga ngeekhredithi zekhabhoni kunye neentlawulo zokulahla inkunkuma, kwaye isityalo sokuxuba i-asphalt eshushu yaseTshayina siba yi-ROI ekhawulezayo kwiinqanawa zakho—ngaphandle kokuba amaxabiso eoyile ehla ngaphantsi kwe-USD 40, imeko enokuba yisaphulelo esikhulu sabahlalutyi abangalunganga. Ngaba ukulungele ukuthetha namanani nomthengisi, okanye usalinde ubuchwepheshe “obugqibeleleyo” obungenakuze bufike?
