Lapho izitshalo ze-asphalt zisebenzisa ubuchwepheshe be-SMA (Stone Mastic Asphalt), ukuphakela i-lignocellulose fibre akuyona into ecatshangelwayo—kuyibhodlela elibalulekile lenqubo. Sibone inqwaba yamaphrojekthi emiswa ngenxa yokuthi isiphakeli asikwazanga ukugcina umthamo we-3–5 g/kg ongashintshi phakathi kokugeleza kwebitumen okungu-200+ °C. Yingakho opharetha ngokuya becacisa i-lignocellulose feeder SMA yesitshalo se-asphalt amayunithi akhelwe ukuqina komhlaba wangempela oshisayo, ukumelana nothuli, nokuphindaphindeka kwemitha—hhayi imininingwane yeshidi lebhu.

Akusekho Ukuphakelwa Kwe-Fiber “Okwanele”

Imicu ye-Lignocellulose—imvamisa esekwe ngokhuni, ubude obungu-3–6 mm, enomswakama ongaphansi kuka-8%—kufanele ingene ku-mixer ngezilinganiso ezinembile zokugeleza kwesisindo. Kuncane kakhulu: ukumbozwa kahle kwefilimu ye-binder, ubungozi bokugxusha. Okuningi kakhulu: ukugoba, ukuphelelwa umoya, ukukhathala ngaphambi kwesikhathi. Ama-feeders amaningi ahluleka kumaphuzu amathathu: i-hopper bridging esimweni sezulu esiswakeme, ukushelela kwe-auger ngaphansi komthwalo, noma ukudlidliza kwedosi okubangelwa ukudlidliza ngesikhathi sokuqala kwesitshalo. Iziphakeli ze-Zibo Jixiang Machinery's SMA-specific lignocellulose zixazulula lokhu ngokuklama—hhayi ukubuyisela.

Uchungechunge lwabo lwe-SjLF-120 lusebenzisa isistimu yokuphakelayo enezigaba ezimbili: i-hopper yokudlidliza esiza amandla adonsela phansi enesilawuli se-amplitude esilungisekayo, elandelwa isihambisa isikulufu sensimbi engagqwali esivaliwe esinempendulo ezwa itorque. Ngokungafani nokuphakelayo kwempahla eyinqwaba, igcina ukunemba kwesisindo esingu-±1.2% kuwo wonke okukhiphayo okungu-0.8–12 kg/h—okuqinisekisiwe esivivinyweni sasendle kulo lonke ukushisa ogwadule lwase-Saudi Arabia kanye nomswakama wemonsoon waseVietnam. Izinga lokuphakelayo lilungiswa ngesikhathi sangempela kusetshenziswa amasiginali okugeleza kwebitumen axhunywe ku-PLC, asuse ukukhipha okwenziwa ngesandla.

Okubaluleke kakhulu, ihlanganisa ngokuqondile nezinhlelo ezivamile zokulawula i-asphalt batching-akukho hardware yesango edingekayo. Sithumele amayunithi eceleni kwe-Benninghoven, i-Ammann, nezixube ezakhelwe ngokwezifiso zezigubhu. Ukufakwa ngakunye kuhlanganisa ukulinganisa okusendaweni kusetshenziswa izilinganiso ze-fiber mass eqinisekisiwe, hhayi nje amashadi okususwa kwevolumu.

Kungani Okuphakelayo Okujwayelekile Kufushane Kuzicelo Ze-SMA

Abanye osonkontileka bazama ukulungisa usimende noma iziphakeli zomlotha we-lignocellulose. Akuvamile ukusebenza. Iziphakeli zikasimende zithembele ekufakweni kwamanzi; i-lignocellulose ixosha umoya. Ama-fly ash feeder aphatha izimpushana ezinhle; I-lignocellulose ine-fibrous futhi i-static-prone. Iklayenti elilodwa eKenya lasebenzisa amaqoqo amathathu elandelana ngokuzinza kukaMarshall okungahambisani—kwaze kwathola ukuthi okuphakelayo “komhlaba wonke” kwakuqongelele u-47 g wensalela yefayibha ngemuva kwesango lokuphuma ngemuva kwamahora angu-8. Lokho akukhona ukunakekela—ukwehluleka komklamo.

Abaphakeli beZibo Jixiang basebenzisa amalayini e-polymer angagxili, i-auger geometry yokuzihlanza, kanye nomjikelezo wokuhlanza oqalwa njalo emizuzwini engu-90—noma uma kudingeka. I-spout yokukhipha igibela ngqo emgudwini webitumen, inciphisa ukulahlekelwa emoyeni. Alukho usizo lomoya lwangaphandle. Asikho isiphephetha-moya sesibili. Ukulethwa okusanda kulawulwa, okuphakelwa amandla adonsela phansi lapho ifayibha ihlangana ne-binder.

Izimo Zangempela Zokuthunyelwa—Hhayi Izimangalo Zencwajana

Ukufakwa akukona ukuhlanganisa nokudlala—kodwa kuyabikezelwa. Udinga imvume engu-300 mm ngaphansi kwe-hopper, ifreyimu eqinile eqinile (engashiselwe esakhiweni sesitshalo esinyakazayo), kanye neluphu yesiginali engu-4–20 mA evela ku-PLC yakho enkulu. Awukho umoya ocindezelwe odingekayo. Ayikho imisebenzi yomphakathi engaphezu kwamabhawodi okuhange amabili we-M12. Ukukhipha kuthatha ngaphansi kwamaminithi angu-90: ukulinganisa kwephuzu eliyiziro, ukuqaliswa kokuhlolwa komthwalo ogcwele, nokuqinisekiswa ngokumelene nedatha yethikithi lenqwaba.

Sithumele amayunithi angaphezu kuka-87 kusukela ngo-2021—e-Nigeria, Uzbekistan, Colombia, nase-Poland. Kuzo zonke izimo, amathani angama-200 okuqala e-SMA akhiqiziwe ahlangana ne-EN 13108-5 i-fiber dispersion specs ngaphandle kokulungisa kabusha opharetha. Uhlu lwezingxenye ezisele? Ikhithi eyodwa ihlanganisa u-95% wokulungiswa kwenkundla: i-auger seal, i-drive coupling, isethi ye-hopper liner. Isikhathi sokuhola sezingxenye ezishintshwayo: izinsuku eziyi-12–18 ukuya endlini ngendlu, zilandelelwa.

Kodwa nakhu okubaluleke kakhulu: lapho umthamo wefayibha uhlala ungabekezelelani, i-voids-in-mineral-aggregate (VMA) ye-SMA yakho ibambelela ngokuqinile ku-17.2±0.3%. Lokho kuvumelana kusho amasampula abalulekile ambalwa anqatshiwe, ukusebenza kabusha okuncane, nokwamukelwa kwendlela egandaywe ngokushesha. Leyo yi-ROI oyilinganisa ngezinsuku—hhayi amakota.

Ukukhetha I-Lignocellulose Feeder Elungile ye-SMA ye-Asphalt Plant

Buza imibuzo emithathu ngaphambi kokucacisa:

I-Zibo Jixiang ishicilela imibhalo egcwele yobuchwepheshe ku-inthanethi—okuhlanganisa imidwebo enobukhulu, imidwebo yezintambo, nezinhlu zokuhlola zokugunyazwa. Awekho ama-NDA adingekayo. Awekho amasango "okuthengiswa kokuxhumana". Ukubonisa ngale kwebanga lobunjiniyela.

Ezitshalweni ze-asphalt ezisebenzisa i-SMA ngamathani angu-200+/ihora, ukwethembeka akukho mayelana namaphesenti okusebenza. Kumayelana nokwazi ukuthi umthamo wefayibha ngeke ushintshe uma umswakamo we-ambient ufinyelela ku-92% noma imijikelezo yephampu yebitumen ngo-3 am. Lokho kuqiniseka kuqala ngokuthi i-lignocellulose feeder SMA yesitshalo se-asphalt-futhi iphetha nge-pavement ehlala njalo.