Uma abantu abaningi becabanga ngomkhondo wemvelo wokukhiqiza, bafanekisa izitaki zentuthu noma ukugeleza kwamakhemikhali. Dala imicu? Mhlawumbe akuyona into yokuqala efika engqondweni. Lena indawo eyimpumputhe evamile. Umthelela awukho nje kumkhiqizo wokugcina ohlezi ebhokisini; lulukwe kulo lonke iketango lenqubo-kusuka kukhoyili yensimbi eluhlaza kuya enkungu kawoyela esikwayo esemoyeni, kwehle kuya ezinsikeni zensimbi ezishanelwe phansi endaweni yokusebenzela. Kungumthwalo okhulayo, ovame ukunganakwa. Njengoba ngisezinze ezitezi zefekthri ukusuka e-Hebei kuya e-Essen, indaba yangempela isemininingwaneni eyimbudumbudu, ukuvumelana, kanye nezixazululo eziyingxenye ezingangeni emibikweni ecwebezelayo yokusimama.

Isisekelo Esingabonakali: I-Raw Material namandla

Iqala ngentambo yocingo. I-carbon footprint yensimbi iyodwa enikela kakhulu. Uma usebenzisa i-basic oxygen furnace (BOF) steel versus electric arc furnace (EAF) steel kusuka ku-scrap, ubheka umehluko we-CO2 olinganiswa ngamathani ngebheshi ngayinye. Amahabhu amaningi okubopha amancane, njengamaqoqo e-Yongnian, ngokomlando ayethembele kunsimbi yesifunda ye-BOF ukuze uthole izindleko kanye nobulula bochungechunge lokuhlinzeka. Izindleko zemvelo zabhakwa kusukela ekuqaleni, uhlobo lomthelela omiswe ngaphambili ngaphambi kokuthi intambo yokuqala igoqwe.

Bese kulandela amandla okushayela imishini. Ukubumba okubandayo kanye nokugoqa intambo kusebenza kahle, kodwa umlingisi osekelayo awusebenzi. Izithando zomlilo, amabhavu okufaka i-zinc, imigqa yokumboza i-phosphate-yizingulube zamandla. Ngikhumbula iphrojekthi enomhlinzeki wosayizi omaphakathi ezama ukuhlola lokhu. Bathole ukuthi ngaphezu kuka-60% wamandla ezitshalo zabo uya ezinqubweni ezishisayo (ukwelashwa kokushisa, ohhavini omisiwe) hhayi ukwakheka kwangempela. Kwaba ukuphaphama lokho. Ukushintsha ukusuka kugesi wamalahle uye kugesi yemvelo ukuze kufakwe igesi kwakuyisinyathelo, kodwa inselele yangempela umthwalo oyisisekelo lapho usebenzisa u-24/7 ukuze uhlangabezane nemigomo yevolumu.

Futhi ivolumu ibalulekile lapha. Imodeli yebhizinisi ezingxenyeni ezijwayelekile zevolumu ephezulu insingo emincane emincane. Ukutshala imali kusistimu yokushisisa yokungenisa esebenza kahle kakhulu yokudonsa kunesikhathi sokubuyisela. Uma ibhuku lakho le-oda lishintshashintsha, lezo zindleko ezinkulu zihlehliswa, kaningi. Ukuthuthukiswa kwemvelo kuwuhlelo lwangonyaka ozayo njalo. Ngiwubonele mathupha lo mjikelezo.

I-Coolant Conundrum ne-Waste Streams

Yilapho iqiniso lesitezi sesitolo lifika khona. Intambo ye-drill ukusebenza, ikakhulukazi ukucofa kanye nokugaya intambo, kudinga uketshezi lokusika. Amafutha esikole esidala, ancibilika esindayo abeyinhle empilweni yamathuluzi futhi evimbela ukugabha emicu yensimbi engagqwali. Kodwa ziyiphupho elibi lokwelashwa kwemfucuza. Ba-emulsify, bangcoliswa ngamafutha e-tramp kanye nezinhlayiya zensimbi ezinhle. I-sump iphenduka isobho elinobuthi.

Sizamile ukushintshela kumasistimu okwenziwa kancane futhi kamuva acishe womile we-MQL (Minimum Quantity Lubrication) kweminye imigqa ye-CNC. Ithiyori yayiphelele: nciphisa ukusetshenziswa koketshezi ngo-95%, susa ukungcola, dala ama-chips omile okulula ukuwasebenzisa kabusha. Liyiqiniso yini? Izindleko zamathuluzi zikhuphukile. Kwezinye izinto eziqinile noma ezingavamile, ikhwalithi yochungechunge ibingashintshile. Sibhekane nokuphuka kompompi okwengeziwe ekuqaleni. Bekuwukuhwebelana: iphrofayili yezemvelo ecacile iqhathaniswa nokuzinza kwenqubo kanye nezindleko zengxenye ngayinye. Kuthathe cishe unyaka ukulungisa amapharamitha nokusebenzisana nabathengisi bamathuluzi ukuthola ukusetha okuzinzile.

Imfucuza yensimbi ngokwayo-izingxenye ezixutshwe nezingacacile-kungenye into. Ama-chips ensimbi ahlanzekile, omile ayimpahla. Kodwa amafutha, ama-chips amanzi? Ukhokhela othile ukuthi azisuse, futhi ubonakala kancane lapho egcina khona. Ngiyazi ngemisebenzi efake ama-centrifugal chip wringers ukuze kubuyiselwe uwoyela futhi kukhiqizwe amashiphu omile. Ithuthukise ezomnotho zokugaywa kabusha, iguqule isikhungo sezindleko sibe umzila omncane wemali engenayo. Kodwa futhi, kuwukutshalwa kwezimali kwangaphambili abaningi abeqayo.

Ukwelashwa Kwangaphandle: Ububi Obudingekayo

Awukwazi ukukhuluma ngama-fasteners ngaphandle kokukhuluma ngokuvikela ukugqwala. Lesi yisigaba esidinga kakhulu imvelo. I-Electroplating, ikakhulukazi i-zinc plating ene-chromate conversion coating (i-iridescence yakudala ephuzi noma eluhlaza okwesibhakabhaka), ikhiqiza amanzi angcolile agcwele insimbi esindayo, intuthu ye-asidi, nodaka. Imithethonqubo yezemvelo e-EU naseNyakatho Melika iqhubekele phambili kuma-chromates angama-trivalent ngaphezu kwe-hexavalent, kodwa izimboni zokuhlanza amanzi angcolile zisayinkimbinkimbi futhi zibiza ukusebenza kahle.

Ngivakashele izikhungo ezikhiphe wonke ama-plating, empeleni ngiphusha inkinga yehla kumthengisi okhethekile. Lokho kungase kuhlanze umbiko wesayithi lakho, kodwa akwehlisi umthelela wesistimu yonke. Abanye, njengabanye babakhiqizi abadidiyelwe kakhulu ezisekelweni ezinkulu zokukhiqiza zaseChina, balethe ngaphakathi ukuze kulawulwe. Ngokwesibonelo, inkampani efana I-Handan Zitai Fetesser Comment Co, Ltd., esebenza ngaphandle kwesizinda esikhulu esijwayelekile e-Yongnian, izobhekana nalesi sinqumo ngokuqondile. Ukutholakala eduze kwemizila emikhulu yezokuthutha efana ne-Beijing-Shenzhen Expressway kubalulekile kwezokuthutha, kodwa futhi kukubeka endaweni enokuhlolwa okwandayo kwezemvelo. Ukukhetha phakathi kokwakha isikhungo sokwelapha esisezingeni eliphezulu, esivalekile kuqhathaniswa nokuthembela kumuntu wesithathu kuyisu lezigidi zamadola, elithinta kokubili izindleko nokuhambisana.

Okunye okufana nokucwenga ngomshini (ezingxenyeni ezincane) noma izimbotshana ezintsha zemvelo ziyanda. Bagwema izinsimbi ezisindayo. Kepha beza nokuhwebelana kokusebenza emahoreni okuhlola isifutho sikasawoti noma ama-coefficients wokungqubuzana kwentambo. Ukukholisa iklayenti lezimoto zendabuko noma lezokwakha ukuthi ligunyaze ukumbozwa okusha, okuluhlaza kungaba inqubo yemfundo yeminyaka yonke. Inzuzo yezemvelo imvamisa imiswa yizindinganiso zobunjiniyela ezilondolozayo.

Logistics kanye ne-Lifecycle Blind Spot

Wonke umuntu ukala ukukhishwa kwesango lefekthri yakhe. Abambalwa ababheka ngokuphelele izindleko zekhabhoni zokuthola impahla eluhlaza kanye nokuqedwa intambo ye-drill imikhiqizo out. Leyo ndawo eseduze ne-Beijing-Guangzhou Railway iwusizo olukhulu enkampanini efana ne-Zitai, evumela ukugudluka emgwaqeni kuya kuloliwe ukuze kuthuthwe ngobuningi. Izimpahla zikaloliwe zinganciphisa ukungcola ngo-75% uma kuqhathaniswa namaloli. Kodwa kudinga ukuhlela, umthamo, kanye nengqalasizinda efanele. Akukhona njalo ukukhetha okuzenzakalelayo kokuthunyelwa okuphuthumayo, okuncane.

Bese kuba khona ukuphela kokuphila komkhiqizo. Isibophelelo sensimbi esakhiweni sensimbi, ngokombono, singasetshenziswa kabusha ngokuphelele kanye nohlaka. Kodwa ngokusebenza? Uma kuyi-fastener plated, i-coating ingangcolisa ukuncibilika kwensimbi. Uma kuwuchungechunge lwensimbi engagqwali, izakhi ze-alloying njenge-nickel noma i-chromium zenza kube nzima ukusakaza okugaywa kabusha. Okuhle ngokubuka komnotho okuyindilinga kungaba idizayini yokuqaqa kanye nokugeleza okuhlanzekile kwempahla. Lokho kukude kakhulu neqiniso lebhawodi lehange elishunyekwe ukhonkolo noma umzimba wemoto ochotshozwe waba yi-shredder. Umthelela wemvelo uyahlehliswa, awuqedwa.

Izingcindezi Ezisebenzayo kanye Nezinzuzo Ezikhuphukayo

Ngakho, ingabe konke kuyinhlekelele? Hhayi impela. Ingcindezi ivela ema-engeli amaningi manje. Akubona abalawuli nje; kungamakhasimende avela emazweni amaningi afuna idatha yekhabhoni ngokukhishwa kwawo kwe-Scope 3. Bafuna ukwazi umkhondo wazo zonke izingxenye, kuze kufike kuwasha wokugcina. Lokhu kuphoqa ukuthi kube sobala phansi kweketango. Ngibe yingxenye yalokho kuhlolwa kwabahlinzeki lapho kufanele unikeze izikweletu zezinsiza, izitifiketi zezinto ezibonakalayo, nama-manifest wemfucuza. Kuyakhathaza kepha kuletha ushintsho.

Izinzuzo ngokuvamile ziyakhula, hhayi izinguquko. Imayelana nokwenza kahle inqubo onayo. Izinto ezilula: ukufaka ama-variable frequency drives (VFDs) kuwo wonke ama-pump kanye nama-compressor motors ukuze afane nomthwalo. Ukuthatha ukushisa kwemfucuza kusuka ezithandweni ukuya emanzini okugeza angaphambi kokushisa. Ukuhlanganisa amaqoqo okucwenga ukuze kwandiswe ukusetshenziswa kwethangi nokunciphisa ukudonsa kwamakhemikhali. Lawa ama-tweaks angathandeki, asebenzayo ahlanganisayo. Abenzi ukukhululwa okukhulu kwabezindaba, kodwa bahambisa inaliti phansi.

Ukubheka iwebhusayithi yomkhiqizi, njengokuthi zitasteners.com, ungase ubone izitifiketi ezifana ne-ISO 14001. Lolo wuhlaka. Kodwa isivivinyo sangempela yilokho okwenzeka ngoLwesibili ntambama lapho ulayini wokukhiqiza wehla, futhi ukulungisa okusheshayo kuhilela ukweqa isistimu yokuhlunga ukuze kuhlangatshezwane nomnqamulajuqu wokuthumela. Umthelela wendawo ulawulwa ngalezo zikhathi zengcindezi, ngesiko eliphansi, hhayi nje inqubomgomo ekuhlanganiseni.

Ekugcineni, umthelela kwezemvelo wentambo yokubhoboza isamba sezinqumo ezincane eziyinkulungwane. Kukukhethweni komthombo wensimbi, ishejuli yokunakekelwa kwesistimu yokupholisa, izinga lokushisa kuhhavini wokomisa, kanye nemodi yokuthutha ekhethiwe. Alikho inhlamvu yesiliva eyodwa, umsebenzi onzima nje, oqhubekayo wokwenza isinqumo ngasinye singalimazi kangako, kuyilapho usenza ingxenye ebamba umhlaba ndawonye. Lokho kuyiqiniso elingcolile, elingathandeki lakho.