Cov khoom siv hnav ntawm lub tshuab tsoo—xws li cov phaj puab tsaig, cov ntaub thaiv lub khob hliav qab, thiab cov pas nrig ntaus—yog cov khoom siv hloov pauv ntau tshaj plaws hauv kev ua haujlwm tsuas thiab kev sib sau ua ke, suav txog li 30% ntawm cov nqi kho txhua xyoo ntawm lub tshuab tsoo. Kev hnav ua ntej lub sijhawm tsis ua haujlwm tsuas yog ua rau lub sijhawm tsis ua haujlwm thiab cov nqi hloov pauv ntau ntxiv xwb tab sis kuj cuam tshuam rau cov sijhawm tsim khoom, ua rau kev tswj hwm cov khoom siv hnav yog qhov tseem ceeb hauv kev ua haujlwm zoo. Tsab xov xwm no tshawb nrhiav cov txheej txheem hnav tseem ceeb uas cuam tshuam rau cov khoom siv tsoo thiab muab cov tswv yim raws li pov thawj los txuas lawv lub neej ntev, siv cov ntaub ntawv txij nkawm kev lag luam thiab cov ntsiab cai ntawm kev tshawb fawb.
Kev hnav khaub ncaws hauv cov khoom siv crusher tsis yog ib qho txheej txheem random; nws yog tsav los ntawm peb lub tshuab tseem ceeb, txhua tus khi rau cov xwm txheej ua haujlwm tshwj xeeb thiab cov khoom siv. Qhov feem ntau yogkev hnav khaub ncaws abrasive, uas tshwm sim thaum cov khoom tawv, lub kaum sab xis (xws li granite lossis basalt) khawb rau ntawm qhov chaw ntawm cov khoom hnav, maj mam tshem tawm cov khoom. Lub tshuab no yog lub luag haujlwm rau ntau dua 60% ntawm kev hnav ua ntej lub sijhawm hauv cov phaj puab tsaig thiab cov kab cone, tshwj xeeb tshaj yog hauv cov nroj tsuag ua cov hlau muaj silica ntau. Qhov thib ob yogkev hnav khaub ncaws, tshwm sim los ntawm kev sib tsoo ceev ceev ntawm cov khoom siv pub thiab cov khoom xws li cov khoom siv crusher blow bars. Hom kev hnav no yog ib txwm muaj nyob rau hauv cov ntawv thov rov ua dua tshiab, qhov twg cov khib nyiab pob zeb thiab cov khib nyiab tsim kho xa cov khoom hnyav rov qab. Thaum kawg,kev qaug zog hnavtshwm sim los ntawm kev ntxhov siab cyclic: thaum cov khoom crusher khoov thaum lub sijhawm thauj khoom tas mus li, cov kab nrib pleb me me tsim rau ntawm qhov chaw, thaum kawg ua rau cov khoom tawg. Cov cone crushers, uas ua haujlwm nyob rau hauv lub zog compression siab, tshwj xeeb tshaj yog yooj yim rau kev qaug zog hnav ntawm mantle thiab concave liners.
Kev nkag siab txog cov txheej txheem no yog thawj kauj ruam los txuas lub neej ntawm cov khoom siv, tab sis kev ua haujlwm tiag tiag yuav tsum tau ua ke ntawm kev xaiv cov khoom siv, kev teeb tsa kom raug, thiab kev saib xyuas ua ntej.
Kev xaiv cov khoom sivyog lub hauv paus ntawm kev tiv thaiv kev hnav. Piv txwv li, Mn13Cr2 yog qhov kev xaiv pheej yig rau cov ntawv thov abrasive qis-rau-nruab nrab, xws li limestone crushing, vim nws cov khoom ua haujlwm-tawv uas muaj zog thaum muaj kev cuam tshuam. Qhov sib piv, Mn18Cr2—nrog cov ntsiab lus chromium siab dua—muaj kev tiv thaiv abrasive zoo dua rau cov ntaub ntawv high-silica xws li granite, ua rau nws zoo tagnrho rau kev siv mus sij hawm ntev hauv cov chaw khawb av uas xav tau kev kub ntxhov. Kev sib phim cov khoom siv rau cov khoom noj khoom haus qhov nyuaj thiab abrasiveness tuaj yeem txo cov nqi hnav los ntawm 20-30%, raws li cov ntaub ntawv los ntawm International Mining and Resources Conference (IMARC).
Kev teeb tsa kom zoo thiab kev saib xyuas tas likuj tseem ceeb ib yam nkaus. Txawm tias cov khoom siv ruaj khov tshaj plaws yuav ua tsis tiav ua ntej lub sijhawm yog tias teeb tsa tsis raug. Rau cov tshuab tsoo lub puab tsaig, kev ua kom cov phaj puab tsaig sib phim nrog qhov sib txawv sib txawv tiv thaiv kev hnav tsis sib xws thiab txo qhov kev ntxhov siab ntawm lub rooj sib dhos phaj toggle. Rau cov tshuab tsoo lub khob hliav qab, kev kuaj xyuas tsis tu ncua ntawm qhov sib txawv ntawm mantle-rau-concave thiab torque ntawm cov bolts khaws cia tuaj yeem tshem tawm qhov tsis sib xws uas ua rau qaug zog hnav. Tsis tas li ntawd, kev lubrication ntawm cov ntsiab lus pivot thiab kev tshuaj xyuas tsis tu ncua ntawm qhov tuab ntawm qhov hnav (siv kev sim ultrasonic lossis calipers) tso cai rau cov pab pawg teem sijhawm hloov pauv ua ntej qhov kev ua tsis tiav loj heev tshwm sim, txo qis lub sijhawm tsis tau npaj tseg.
Kev ua haujlwm zoo tshaj plawsua rau qhov hnav ntev dua. Kev tswj qhov loj thiab kev faib tawm ntawm cov khoom noj txo cov zog cuam tshuam: piv txwv li, siv lub vibrating feeder los faib cov khoom sib npaug rau hauv lub crusher chamber tiv thaiv kev hnav ntawm ib sab ntawm lub puab tsaig phaj. Kev tshuaj xyuas ua ntej pub cov khoom noj kom tshem tawm cov khoom me me (cov khoom me dua 10 hli) kuj txo cov khoom siv abrasive, vim tias cov khoom me me ua haujlwm ua qhov nruab nrab sib tsoo ntawm qhov hnav thiab cov pob zeb loj dua. Thaum kawg, kev kho qhov chaw crusher - xws li qhov chaw kaw sab (CSS) hauv cone crushers - kom phim qhov loj me ntawm cov khoom xav tau zam kev sib tsoo ntau dhau, uas ua rau muaj kev ntxhov siab tsis tsim nyog rau cov liners.
Xaus lus, kev ncua lub neej ntawm cov khoom siv crusher tsis yog ib qho teeb meem ntawm kev xaiv cov khoom siv "nyuaj tshaj plaws", tab sis yog kev siv txoj hauv kev holistic uas daws cov txheej txheem hnav ntawm txhua theem ntawm kev ua haujlwm. Los ntawm kev xaiv cov ntaub ntawv uas haum rau cov yam ntxwv pub, siv cov txheej txheem kev teeb tsa thiab kev saib xyuas nruj, thiab kev ua kom zoo dua cov kev ua haujlwm, cov thawj coj cog qoob loo tuaj yeem txo cov nqi kho thiab txhim kho kev ntseeg siab ntawm kev tsim khoom. Rau cov lag luam hauv kev lag luam crusher, kev nqis peev rau kev siv lub neej ntev ntawm cov khoom siv tsis yog tsuas yog kev txuag nyiaj xwb - nws yog ib kauj ruam tseem ceeb rau kev ua haujlwm ruaj khov thiab ua haujlwm tau zoo.
Lub sijhawm tshaj tawm: Lub Ob Hlis-04-2026