Tuam Tshoj cov khoom siv khib nyiab feem ntau yog tailings, ya tshauv, thee gangue, smelting slag, thee-fired slag thiab desulfurization gypsum.Kev npaj cov khoom siv hauv tsev los ntawm cov khoom pov tseg tau nyiam ntau thiab ntau dua.Cov kws tshawb fawb tau txhim kho qhov kev siv dav dav ntawm cov khoom pov tseg hauv kev lag luam khoom siv hauv tsev los ntawm kev txhim kho thiab kev tshawb fawb thiab kev tsim cov cuab yeej siv thiab thev naus laus zis.Nyob rau tib lub sijhawm, ntau lub teb chaws tau tshaj tawm cov kev cai lij choj thiab cov cai los txhawb cov tuam txhab kev txaus siab rau kev siv cov khoom pov tseg, yog li txhim kho qhov cuam tshuam ntawm cov khoom khib nyiab ntawm ib puag ncig rau qee yam.Raws li cov chaw tsim khoom ntawm hlau tailings sib tsoo zeb, pebhlau tailings ntsug cov menyuam zeb tau siv dav hauv cov hlau tailings xuab zeb sib tsoo lub tsev cov ntaub ntawv siv dav dav.HCMilling (Guilin Hongcheng) yuav qhia cov cuab yeej ntawm kev npaj cov khoom siv hauv tsev los ntawm cov hlau tailings.

1. Calcined cement clinker

Hlau tailing yog nplua nuj nyob rau hauv cov khoom hlau, uas tuaj yeem hloov cov hmoov hlau ua raw khoom rau cov cement clinker ntau lawm.Hlawv cov cement clinker nrog limestone, quartz xuab zeb thiab hlau tailings raws li cov ntaub ntawv raw tuaj yeem txo qhov kub thiab txias ntawm cov cement, tab sis qhov sib tov yog txwv, thiab sib tov ntau dhau yuav txo cov cement zog.Tam sim no, tus nqi ntawm cov hlau tailings siv rau calcining cement clinker tsuas yog kwv yees li 15%.Nws yog qhov tsim nyog los tsim cov cuab yeej tshiab thiab cov cuab yeej tshiab los txhim kho cov hlau tailings thiab xyuas kom cov khoom siv cement zoo.

2. Kev sib sau ua ke

Lub siab hardness ntawm hlau tailings tsuas yog los ntawm lub sab hauv quartz theem, nws particle loj nyob ze rau tej yam ntuj tso dej xuab zeb thiab manufactured xuab zeb, thiab yuav muab tov rau hauv pob zeb ua aggregate.Cov pob zeb uas muaj 28d lub zog ntawm li 40MPa tuaj yeem npaj tau los ntawm kev siv hlau tailings nrog particle loj tsawg dua 1 hli los hloov cov dej xuab zeb zoo li cov khoom sib xyaw zoo.Raws li kev ua kom zoo ntawm kev sib sau ua ke, kev sib xyaw siv cov hlau tailings thiab tshuab ua xuab zeb ua aggregate tsis tau tsuas yog ua tau raws li qhov yuav tsum tau ntawm pob zeb rau cov ntaub ntawv, tab sis kuj muaj kev ruaj ntseg zoo dua li cov hlau tailings thiab ntuj dej xuab zeb, uas yog ntau dua. conducive rau kev tswj cov pob zeb zoo.Raws li cov txheej txheem tau txais txiaj ntsig tam sim no muaj kev txhawj xeeb, txhawm rau txhawm rau txhim kho cov hlau rov qab, cov hlau tailings hais tau zoo dua thiab zoo dua, uas nyuaj ua kom tau raws li tus qauv ntawm cov ntxhib sib xyaw thiab siv rau cov pob zeb zoo tib yam.

3. Pob zeb ntxhia admixture

Mineral admixtures yog tsim los ntawm amorphous siliceous, calcareous thiab txhuas cov ntaub ntawv, uas ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov compactness, impermeability thiab durability ntawm pob zeb.Lawv tuaj yeem txo cov cement noj thiab txo cov cua sov ntawm hydration tib lub sijhawm.Yog li ntawd, nws yog ib qho tseem ceeb kom nrhiav tau cov ntxhia tshiab admixtures rau txoj kev loj hlob ntawm kev lag luam cement.Lub ntsiab ntxhia theem nyob rau hauv hlau tailings feem ntau yog quartz, uas muaj me ntsis pozzolanic kev ua nyob rau hauv lub ntuj lub xeev.Yuav ua li cas los txhim kho "pozzolanic kev ua si" ntawm hlau tailings tau dhau los ua lub ntsiab lus tseem ceeb ntawm cov kws tshawb fawb tam sim no.Raws li ib qho ntawm cov kev siv ntau tshaj plaws rau kev ua kom cov hlau tailings, kev sib tsoo tshuab tuaj yeem txo qhov ua kom lub zog ntawm cov hlau tailings thiab tsim ntau cov lattice deformation thiab yas deformation.Kev tshawb fawb qhia tau hais tias kev sib tsoo tshuab tuaj yeem txhawb nqa cov haujlwm pozzolanic ntawm cov txheej txheem ntxhia hauv cov hlau tailings.Raws li qhov loj me me ntawm cov khoom siv hauv av txo qis, quartz tuaj yeem hnov ​​​​mob nrog Ca (OH) 2 hauv cov cement slurry los tsim amorphous hydrated calcium silicate gel thiab ettringite siv lead ua thiab lwm yam khoom siv dej.Kev tshawb fawb qhia tau hais tias thaum lub tshuab sib tsoo ntau tshaj 40min, lub kaum ntse ntse ntawm cov hlau tailings yog pom tseeb txo qis, ntau cov khoom me me tau tshwm sim, thiab qhov sib xws tau maj mam txhim kho.Nyob rau hauv lub anhydrite hlau tailing calcium oxide system, siliceous hlau tailing ntawm txhua yam sib tsoo tuaj yeem tov nrog 30% los npaj 32.5 cement.Nyob rau hauv cov xwm txheej ntawm cov dej tsis tshua muaj qhov sib piv, cov hlau zoo tailings hmoov tuaj yeem txhawb nqa cov dej thaum ntxov ntawm cov cement paste, ua rau cov qauv pore ntawm mortar ntau dua, thiab txhim kho lub zog thaum ntxov.Qhov nce ntawm thaj chaw tshwj xeeb ntawm cov hlau tailings tsis muaj kev cuam tshuam rau kev txhim kho nws cov kev ua ub no;Qhov kev hloov ntawm curing kub tuaj yeem ua rau nce qhov kev ua haujlwm Performance index thaum ntxov (7d), tab sis tsis muaj kev cuam tshuam me ntsis ntawm qhov ntsuas kev ua haujlwm nyob rau theem kawg (28d).Rau cov hlau tailings slag composite system, kev ua haujlwm Performance index tuaj yeem txhim kho los ntawm kev txhim kho kev sib tsoo mechanism, yog li txhim kho cov kav ntev ntawm cov pob zeb.Qhov tsim nyog siv dej txo tus neeg sawv cev tuaj yeem nce cov ntsiab lus ntawm cov hlau tailings hauv cov pob zeb zoo tib yam los ntawm 30% mus rau 40%.Cov hlau tailings sib tsoo tuaj yeem txhim kho kev sib tsoo los ntawm nws tus kheej cov nyhuv, yog li txhawb kev ua haujlwm pozzolanic ntawm hlau tailings.Los ntawm optimizing tus piv ntawm hlau tailings, slag, clinker thiab gypsum composite cementitious cov ntaub ntawv, ultra-siab kev ua vaj tse nrog kev ua tau zoo raws li lub teb chaws tus qauv tuaj yeem npaj tau.

HLM hlau tailings ntsug roller mills for iron tailings produced by HCMilling(Guilin Hongcheng) is the equipment for grinding iron tailings, which provides good equipment support for the technology of preparing building materials from iron tailings. It can process 80-600 mesh iron tailings with an output of 5-200t/h. If you have related equipment requirements, please contact mkt@hcmilling.com or call at +86-773-3568321, HCM will tailor for you the most suitable grinding mill program based on your needs, more details please check www.hcmilling.com.