Heavy duty apron feederyog ib qho khoom siv tseem ceeb hauv kev mining, metallurgy, chaw nres nkoj thiab tshuaj lom neeg kev lag luam, tab sis tsis muaj qhov tseeb tsim txoj kev xav txog kev tiv thaiv los ntawm hopper hauv phau ntawv tshaj lij. Cov mis traction kuj yog muab los ntawm kev siv qhov tseeb bin siab txoj kev xav, thiab muab piv nrog cov mis hauv ntau phau ntawv, yog li taw qhia qhov tsis tsim nyog thiab ploj ntawm cov qauv qub.
Heavy luag hauj lwm apron feeder plays lub luag hauj lwm irreplaceable nyob rau hauv mining, metallurgy, tshuaj kev lag luam, chaw nres nkoj thiab lwm yam lag luam. Txij li thaum xyoo 1950, kev tsim thiab tsim qib ntawm cov khoom siv hnyav hnyav hauv tsev apron feeder tau ua tiav zoo, tab sis tseem muaj qee qhov sib txawv piv nrog txawv teb chaws (txog 12000t / h). Ib qho laj thawj tseem ceeb yog qhov kev xav tsim ntawm cov phaj hnyav tseem txwv rau qhov yooj yim tshaj plaws ntawm kev suav 1-magic. Tshwj xeeb, kev sib txhuam ntawm cov khoom siv thiab cov khoom siv, kev sib txhuam ntawm cov ntaub ntawv thiab cov phaj phaj thiab kev sib txhuam ntawm cov ntaub ntawv thiab cov phaj hauv qab thiab lwm yam, tsis muaj qhov tseeb tsim txoj kev xav tau ntau xyoo, thiab cov phaj loj thiab loj hnyav saum ob hom kev ntsuas kuj tseem ceeb heev. Txij li thaum pib ntawm lub xyoo pua no, qee cov kws tshawb fawb tau pib kawm theoretically, tab sis tseem muaj ntau yam teeb meem uas daws tsis tau. Cov qauv kev suav ntawm shear resistance thiab kev sib txhuam tsis sib haum ntawm cov khoom siv thiab daim tiab ntawm daim tiab ncaj phaj feeder raug txiav tawm thawj zaug. Nqe lus [9] systematically derived ntau yam kuj kuj xam cov qauv ntawm lub feeder rau lub inclined tiab phaj . 1 Resistance formula derivation kom ua tau zoo xws li kev ua hauj lwm ntawm vibration feeder thiab siv feeder, yog tsis muaj peev xwm tiv warehouse siab [txiav. Nyob rau hauv qhov tseeb txheej txheem layout ntawm mining thiab lwm yam industries, lub hnyav phaj yog ncaj qha nyob rau hauv lub silo, thiab tsis muaj inclined hnyav luag hauj lwm apron feeder "silo caj dab". Qee lub sij hawm, lub silo qhib nrog qhov ntev ntawm 20m yog txuas ncaj qha rau lub phaj hnyav.
Cia ox thiab oy yog cov khoom siv siab hauv cov lus qhia x thiab y, N / m; A yog tus ntoo khaub lig-sectional cheeb tsam ntawm lub silo, m2; L yog qhov ncig ntawm ntu ntu ntawm lub silo, m; 8 yog lub kaum sab xis ntawm cov khoom thiab cov phab ntsa silo, 8=tan1f. ; f. Yog qhov kev sib txhuam ntawm cov khoom siv thiab cov phab ntsa warehouse; p yog cov khoom siv hauv kev sib txhuam lub kaum sab xis, p=tan4,4 yog cov khoom siv hauv kev sib txhuam; p yog qhov ceev ntawm cov ntaub ntawv, kg / m3; g yog lub ntiajteb txawj nqus acceleration, g=9.81m/s2; y yog qhov siab ntawm cov khoom nyob rau hauv lub warehouse, m; Lub kaum sab xis ntawm plaub phab ntsa ntawm lub silo thiab lub dav hlau kab rov tav yog a thiab B.
Lub luag hauj lwm hnyav apron feeder thib ob yam khoom ntawm sab xis ntawm lub vaj huam sib luag kos npe yog sib npaug ntawm cov qauv, uas yog, ntxiv kev sib txhuam quab yuam ntawm cov phaj hauv qab los ntawm cov khoom hauv lub hopper. Txawm li cas los xij, tus nqi no tsis muaj kev sib raug zoo nrog lub hopper qaij lub kaum sab xis, qhov siab ntawm qhov siab thiab sab siab coefficient, yog li nws tsis yog qhov tseeb los siv cov qauv no hauv kev tsim cov phaj loj loj. Cov ntaub ntawv tsis xav txog lub zog shear ntawm cov ntaub ntawv nyob rau hauv lub hopper, qhov kev sib txhuam ntxiv ntawm cov ntaub ntawv nyob rau hauv lub hopper thiab daim tiab tiab los ntawm cov ntaub ntawv nyob rau hauv lub hopper, cia nyob ib leeg muaj kev sib txhuam ntawm cov ntaub ntawv thiab lub tiab tiab thaum lub sij hawm thauj mus los ntev. Qhov kev tawm tsam ntawm lub hopper hauv ib cov ntaub ntawv yog raws li nram no: Fm=hDqMg 10 pmu Formula (19) yog tib yam li cov ntawv nyeem, tshwj tsis yog tias pM muaj ob qhov sib txawv algorithms. PM=0.8 pgab? Ob lub algorithms ntawm PM=2.8pga2b2/(a+b)pM ua pov thawj qhov tsis paub tseeb ntawm cov qauv no nws tus kheej, thiab qhov tsis tsim nyog yog qhov kev sib raug zoo nrog lub hopper qaij lub kaum sab xis, qhov siab hopper thiab sab siab coefficient tsis muaj kev hloov pauv. Reference Friction resistance ntawm cov khoom thiab tiab
