Muva nje, ulayini wokukhiqiza i-steel slag powder onamandla amakhulu okukhiqiza e-China waqedwa futhi waqala ukusebenza eShagang Group.Isamba sokutshalwa kwezimali kwale phrojekthi singama-yuan ayizigidi eziyi-170, futhi kulinganiselwa ukuthi amathani angama-600000 we-steel slag powder azokhiqizwa minyaka yonke.Ngenxa yokuqina okuphezulu kwe-slag yensimbi, ububanzi bezinhlayiyana zogayo olujwayelekile lwebhola kanye ne-roller mill kusengaba ngu-6-8mm ngemva kokuchotshozwa, okudinga ukuthi amabhizinisi okukhiqiza usimende acubungule futhi.Iinsimbi slagmpo roller mill isetshenziswa emgqeni wokukhiqiza wensimbi ye-slag mill yaseShagang, "eshiya" ngokuqondile isixhumanisi esiphakathi.Ubukhulu be-diameter ye-slag yensimbi bungafinyelela cishe ku-0.003mm.Ngesisekelo sokunciphisa ukusetshenziswa kwamandla kwenqubo, inganciphisa izingozi zemvelo, ithuthukise inani elengeziwe lomkhiqizo, iqhubeke nokugqugquzela ukuguqulwa kwe-steel slag kusuka "kudoti oqinile" kuya "kumkhiqizo", futhi kufinyelele "ukuthuthukiswa okuphindwe kabili. ” zezinzuzo zokuvikelwa kwemvelo kanye nezinzuzo zezomnotho.Lokhu kubonisa ukuthi isigayo se-steel slag sinethuba elihle lemakethe.Njengochwepheshe bensimbi ye-slag yokugaya mpo, i-HCMilling(Guilin Hongcheng) izokwethula ukusetshenziswa kwemakethe kwesigayo sensimbi ye-slag mpo.
Kuyaqondakala ukuthi "ukugaya i-steel slag" kuwumsebenzi owaziwa yimboni wokuvikela imvelo, iphrojekthi yezomnotho engasetshenziswa kabusha, kanye "nokweqa kwesibili" kokwelashwa kwe-slag yensimbi e-Shagang.Ngo-2020, i-Shagang izokwakha iphrojekthi enkulu kunazo zonke yokwelapha i-slag yensimbi engamathani ayizigidi ezingu-3.3 e-China, futhi izuze ukusetshenziswa okuphelele kwe-100% kwe-slag yensimbi ngokuhlukana kazibuthe, ukuchotshozwa, ukugaya izinduku, ukuhlolwa nokunye ukucubungula okujulile.Ekupheleni kuka-Okthoba wonyaka ofanayo, cishe amathani angu-600 we-slag yensimbi evela eShagang afakwa ngempumelelo kuphrojekthi yokuguqulwa kwesipontshi semigwaqo kamasipala yaseZhangjiagang.Ngemva kweinsimbi slag ukugayaisigayoumugqa wokukhiqiza usetshenziswa, i-slag yensimbi ishintshile ngempela isuka "kudoti oqinile" yaba "umkhiqizo", futhi izinsiza zokuvuselela ziye "zomiswa futhi zakhanywa", zandisa uchungechunge lwezomnotho oluluhlaza."Ububanzi bezinto zokusetshenziswa bungu-6-8mm, bese siqhubeka sizigaya nge-steel slag vertical roller mill, futhi ukucoleka kufinyelela ku-0.003mm ububanzi."Ngokusho kukachwepheshe ovela endaweni yokusebenzela yokudiliza ye-Shagang New Materials Co., ulayini ojwayelekile wokukhiqiza i-steel slag ungamathani angama-300000 kuyo yonke imboni.Ulayini wethu omusha wokukhiqiza amathani angu-600000 uyireferensi yayo yonke imboni futhi usiza kakhulu ekwakhiweni kwezinkambiso ezisebenzayo zemboni.
Ucwaningo mayelana nokuthuthukiswa nokusetshenziswa kwe-steel slag micro powder yisihloko esishisayo esilandela ukusetshenziswa okukhulu kwe-slag micro powder eminyakeni yamuva.Ukukhiqizwa kwe-micro powder noma i-composite micro powder nge-steel slag kungaqeda umehluko ekugayeni ekukhiqizeni usimende we-steel slag.Lapho i-slag yensimbi igaywe ku-fineness ethileinsimbi slag mpo roller mill, lapho indawo ethize ingaphezulu kuka-400m2Kg, insimbi yensimbi ingasuswa ngezinga elikhulu kakhulu.Isakhiwo sekristalu sezinto ezibonakalayo sihlelwa kabusha ngokugaya okuhle kakhulu, futhi isimo sezinhlayiyana siyashintsha, Ingaphezulu lingathuthukisa futhi livuselele umsebenzi we-steel slag, linikeze ukudlala ezicini ze-hydraulic cementing materials.Lapho i-steel slag powder kanye ne-slag powder kuhlanganiswa, banenzuzo ye-superposition.I-calcium hydroxide eyakhiwe lapho i-C3S ne-C2S ku-steel slag ithola amanzi iyisicupha esiyisisekelo se-slag.Idatha yakamuva ibonisa ukuthi nakuba ukusetshenziswa kwe-slag powder njenge-concrete admixture kungathuthukisa amandla kakhonkolo futhi kuthuthukise ukusebenza nokuqina kwengxube kakhonkolo, i-alkalinity ephansi ye-blast furnace slag (% CaO+% MgO)/(% SiO2+% Al2O3) , mayelana ne-0.9 ~ 1.2, izonciphisa kakhulu i-alkalinity yesigaba se-liquid kukhonkolo, ilimaze ifilimu ye-passive yokuqinisa kukhonkolo (pH <12.4 kulula ukulimaza), futhi ibangele ukugqwala kokuqiniswa kukhonkolo.Ngaphezu kwalokho, i-blast furnace slag ingumzimba we-vitreous one-C3AS ne-C2MS2 njengezingxenye eziyinhloko.I-gellability ye-granulated blast furnace slag powder ivela ekuhlakazweni kwesakhiwo se-slag vitreous.Imikhiqizo ye-hydration ingakhiwa kuphela ngaphansi kwesenzo se-Ca (OH) 2. I-slag yensimbi ine-alkalinity ephezulu (% CaO +% MgO) / (% SiO2), cishe i-1.8 ~ 3.0.Amaminerali ikakhulukazi i-C3S, i-C2S, i-CF, i-C3RS2, i-RO, njll. I-fCaO namaminerali asebenzayo ku-steel slag akhiqiza i-Ca (OH) 2 lapho ehlangana namanzi, okuthuthukisa i-alkalinity yoketshezi yohlelo lukakhonkolo, Ingasetshenziswa njenge i-alkaline activator ye-slag powder.Ukhonkolo oxutshwe ne-steel slag powder unezici zamandla aphezulu esikhathini esizayo.Ngakho-ke, i-steel slag kanye ne-slag composite powder ingafunda komunye nomunye, futhi ukusebenza kuphelele kakhulu.
Inqubo yokukhiqiza ye insimbi slag mpo roller mill ihlanganiswe nokuchotshozwa, ukugaya, ukomisa kanye nokukhethwa kwempushana, ebonakala ngokusetshenziswa kwamandla aphansi, ukusebenza kahle kokuvala uphawu, indawo encane yaphansi, inqubo elula, njll. i-powder concentrator, izinga lokugeleza komoya lefeni yokugaya kanye nokucindezela kokugaya.Ngokushintshwa kwezindlela zokuklama kanye nemiqondo kanye nobuchwepheshe benqubo obukhula ngokukhula, ukutshalwa kwezimali kwesistimu yokugaya i-roller kwehla kakhulu, ngokuyisisekelo elingana noma ephakeme kancane kunaleyo yesistimu yokugaya ibhola lesekhethi evaliwe.Ngenxa yezinzuzo zayo ekusebenzeni nasekusetshenzisweni kwamandla, uhlelo luzosetshenziswa kabanzi.I-HCMilling(Guilin Hongcheng) iyisigayo somshini wensimbi oqondile we-slag.EyethuI-HLM yensimbi slagmpo roller mill iyimishini ekahle yokusiza isigayo se-roller mpo ukuze sandise imakethe ye-steel slag powder.Ingakwazi ukugaya i-steel slag powder ngendawo ephakeme ethize engaphezu kuka-700, igcine izinqubo ezimbili zokugaya kwangaphambili nokugaya okokugcina, futhi iqedele ukukhiqizwa kwe-steel slag powder ngesinyathelo esisodwa.
Uma unezidingo ezifanele, sicela usithinte ukuze uthole imininingwane yesisetshenziswa.
Isikhathi sokuthumela: Dec-04-2022
