Mineral sizersyog ib hom yob crusher. Qhov chaw ua hauj lwm yog cam khwb cia nrog cov hniav tsis tu ncua. Thaum ob lub rollers tig rov qab ib leeg, cov khoom poob los ntawm qhov chaw nres nkoj pub yog snapped rau hauv lub crushing chamber, thiaj li yuav tawg. Mineral sizers ua lub luag haujlwm tseem ceeb hauv chopping, extrusion breaking, bending breaking, impact breaking, etc. Qhov project no yog raws li qhov kev thov rau cov crushed ntub nickel laterite ore. Cov ore raw yog sifted rau hauv cov ntxhia sizers nrog ib tug inlet loj ntawm -400mm thiab ib tug paug loj ntawm -100mm. Qhov xav tau ntau lawm yog 500tm. Mineral sizers nrog txoj kab uas hla ntawm 1200mm, yob ntev ntawm 1200mm thiab kev sib hloov ceev ntawm 65r / min tuaj yeem ua tau raws li qhov yuav tsum tau ua thiab particle loj.
Lub ntsiab tsis muaj xws li cov qauv kev tsis sib xws thiab cov kev ua haujlwm tseem ceeb. Ob qhov kev txwv yog sib cuam tshuam thiab txwv. Piv txwv li, cov duab thiab layout ntawm cov menyuam cov hniav muaj feem xyuam rau qhov luaj li cas ntawm cov pa tawm thiab cov zis, thiab raws li qhov yuav tsum tau tso zis los xaiv lub tsim nyog lub cev muaj zog lub zog thiab ceev, tag nrho cov ntawm cov menyuam nyob deb ntawm cov menyuam cov hniav thiab layout ntawm cov menyuam cov hniav muab rau pem hauv ntej yuav tsum tau.
1.1 cov duab thiab kev npaj ntawm cov hniav yob
Xav txog tias lub zog shear ntawm cov khoom yog me dua li lub zog extrusion, cov khoom tawg, tawg yooj yim dua li cov extrusion crushing, thiab txuag kev ua haujlwm, yog li cov duab ntawm cov menyuam cov hniav rau lub ntsej muag dav dawb hau (plaub prism), txhawm rau pab txhawb cov khoom siv crushing. Vim muaj cov ntsiab lus dej siab ntawm cov khoom siv, muaj qhov ua tau ntawm cov menyuam yaus, kev siv ob leeg cov hniav staggered kev npaj, thiab ntxiv cov hniav zuag ntawm ob sab ntawm lub thawv, tuaj yeem ntxuav cov khoom siv raws sijhawm. Cov ntaub rau cov menyuam nrog qhov chaw nruab nrab tuaj yeem kho qhov loj ntawm qhov tso tawm qhov loj me, thiab tseem tuaj yeem ua rau ob tus hniav chais zuag ib leeg thaum sib tsoo cov ntaub ntawv kom tsis txhob muaj cov khoom nplaum. Cov txheej txheem ntawm cov hniav yob thiab cov txheej txheem ntawm cov backlash yuav tsum ua kom tau raws li qhov yuav tsum tau muaj ntawm qhov loj me me, tab sis kuj xav txog qhov kev nthuav dav ntawm cov ore, yog li qhov kev tshem tawm ntawm cov hniav yob yuav tsum yog me ntsis loj dua qhov loj me me. Yob cov hniav npaj . 1.2 raws li qhov yuav tsum tau tso tawm, yog tias cov khoom yog 100% sau rau hauv txoj kev tawm (qhov chaw tig los ntawm qhov sib txawv ntawm ob lub hniav), qhov ntim ntawm qhov chaw no yog qhov ntim tawm.
Qhov twg, r yog lub vojvoog ntawm lub hauv paus lub voj voog ntawm cov hniav menyuam, 0.52m; e yog qhov dav ntawm qhov chaw nres nkoj, 0.1m; l yog yob ntev, 1.2m; v, yog qhov ntim ntawm cov hniav yob. Peb -qhov software yog siv los tsim cov khoom yob cov hniav, thiab qhov ntim ntawm ib qho yob cov hniav yog ntsuas los ntawm 0.2 × 103m3, thiab tag nrho cov hniav ntawm ob yob yog z=288, yog li v, =57.6 × 10-3m3,v=0.37m3. Yog li, qhov kev sib hloov ceev n= 20.48r / min ntawm 500t / h cov zis tuaj yeem suav los ntawm cov qauv (1).
Covmineral sziersKev suav cov txiaj ntsig tau pom tias qhov kev sib hloov ceev ntawm tsawg kawg yog 20.48rmin yuav tsum tau ua tiav cov txiaj ntsig ntawm 500th. Nws yog qhov ua tsis tau rau cov khoom siv los ua kom tiav txoj kev tawm los ntawm 00% ntawm qhov kev sib hloov ceev. Lub ntsiab lus ntawm 00% cov ntaub ntawv sau thiab tso tawm txoj hauv kev yog tias cov khoom ntim qhov sib txawv thiab cov hniav ntawm ob lub yob. Yog hais tias txoj kev tawm yog tag nrho ntawm cov khoom, cov hniav cov menyuam tsuas muaj extrusion nyhuv ntawm cov khoom, tsis muaj crushing nyhuv. Qhov tseeb, cov khoom ntog qeeb qeeb dua li cov kab nrawm ntawm cov hniav, uas ua rau cov hniav sab saum toj ntawm ob lub chais, muaj qhov sib txawv ntawm cov hniav, uas yog hais tias, cov khoom tsis yog 100% filling thiab tawm txoj kev. Tab sis qhov no yog qhov zoo rau kev sib tsoo ntawm cov khoom siv, kom cov khoom sib cais ntawm cov hniav. Lub pob zeb muaj cov cuab yeej ntawm kev sib tsoo, thiab kev sib tsoo yog ua tiav nyob rau hauv txoj kev tsis yog - cov ntaub ntawv, yog li cov khoom yuav tsum tsis txhob 100% puv hauv txoj kev tawm. Yog li ntawd, qhov tseeb ceev yuav tsum siab tshaj 20.48rmin, thiaj li ua tau raws li cov zis ntawm 500h. Formula (1) yog nkag mus rau hauv kev kho coefficient k, uas yog cuam tshuam los ntawm saturation ntawm cov khoom noj khoom haus, cov yam ntxwv ntawm cov khoom nws tus kheej, qhov ntev ntawm daim ntaub yob ntawm cov khoom, muaj pes tsawg leeg ntawm kev pub mis loj thiab crushing ratio. Raws li cov qauv qhia pom ntawm ob npaug - du yob crusher, k=0.40.6 feem ntau yog coj, thiab ntawm no =0.4 raug coj los ua kom cov zis muaj qee qhov npoo.
Qhov ceev tuaj yeem hloov kho rau n=51.19r / mino 2. Qhov sib kis ntawm lub tshuab tau thov hauv cov qauv qauv yog: Lub cev muaj zog → siv → reducer tsav cov menyuam → cov khoom sib txawv → tsav cov menyuam. Noj rau hauv tus account qhov tshwj xeeb ntawm cov khoom yog ntub thiab mos, yooj yim rau lo rau cov menyuam, txais yuav daim ntawv comb hniav. Vim yog qhov sib txawv, ob tug menyuam cov hniav staggered ua ke tuaj yeem tig dawb yam tsis muaj kev sib tsoo. Txhawm rau kom tsis txhob cuam tshuam cov khoom siv hauv qhov sib txawv thiab txhawm rau ua kom lub zog tawg ntawm cov hniav yob thiab cov khoom siv los pab txhawb kev tawg, ob lub hniav yob yog siv los tig asynchronously, uas yog hu ua kev sib hloov sib txawv. Cov txheej txheem sib txawv ua rau tus tswv thiab tsav yob txav mus rau qhov sib txawv thiab hloov cov pob zeb hauv av los ntawm cov yob nquag mus rau cov yob tsav. Cov zis tuaj yeem lav tau los ntawm kev xaiv cov neeg tsav tsheb ceev ntawm 60r / min thiab cov tsav tsheb ceev ntawm 52rmin. Xav txog tias hom kev thauj khoom ntawm lub crusher yog qhov cuam tshuam, kev sib koom ua ke nqaim v siv tsav yog saws nruab nrab ntawm lub cev muaj zog thiab lub reducer, uas muaj cov qauv me me thiab loj hloov hluav taws xob, thiab tuaj yeem paub qhov hloov pauv tau ntawm lub cev muaj zog thiab lub nra.