Hauv kev lag luam thoob ntiaj teb, kev khawb av, thiab kev ua cov khoom sib sau ua ke, cov tshuab tsoo yog cov khoom siv tseem ceeb ntawm cov kab ntau lawm, thiab lawv cov khoom hnav - suav nrog cov phaj puab tsaig, cov kab cone, cov pas nrig cua, thiab cov taub hau rauj - yog cov khoom siv tseem ceeb tshaj plaws. Rau cov neeg ua haujlwm, kev hloov pauv ntau zaus ntawm cov khoom hnav tsis yog tsuas yog tsav cov nqi yuav khoom ncaj qha xwb tab sis kuj ua rau lub sijhawm tsis tau npaj tseg, uas tuaj yeem txo qhov kev ua haujlwm ntau lawm los ntawm 15-25% txhua xyoo, raws li cov ntaub ntawv kev lag luam. Ntau tus neeg ua haujlwm tsom mus rau tus nqi yuav khoom ua ntej ntawm cov khoom hnav, tab sis tsis quav ntsej txog cov hauv paus ntawm kev ua tsis tiav ua ntej, ua rau muaj kev hloov pauv ntau zaus thiab cov nqi nce siab. Tsab xov xwm no rhuav tshem cov hauv paus tseem ceeb ntawm kev ua tsis tiav ntawm cov khoom hnav crusher, thiab qhia cov tswv yim kev lag luam uas tau lees paub los txuas ntxiv lub neej kev pabcuam, pab cov neeg ua haujlwm txhim kho tag nrho cov nqi ntawm kev muaj (TCO) thiab ua kom muaj kev sib txuas ntxiv ntawm kev tsim khoom.
Cov Ua Rau Cov Khoom Siv Hnav Ua Ntej
Kev nkag siab txog cov txheej txheem ua tsis tiav yog thawj kauj ruam los txuas lub neej ntawm cov khoom siv hnav. Cov ntaub ntawv kev lag luam qhia tau tias ntau dua 90% ntawm kev puas tsuaj ntawm cov khoom siv hnav ua ntej lub sijhawm yog los ntawm plaub qhov ua rau tseem ceeb, feem ntau yog qhov kwv yees tau thiab tiv thaiv tau.
Qhov ua rau muaj ntau tshaj 80% ntawm kev puas tsuaj ntawm cov khoom siv yog kev hnav tsis zoo. Qhov no tshwm sim thaum cov khoom siv tawv thiab ntse hauv cov khoom siv pub khawb, txiav, thiab ua rau qhov chaw ntawm qhov khoom siv hnav tsis zoo thaum lub sijhawm zom. Qhov hnyav ntawm kev hnav tsis zoo yog khi ncaj qha rau qhov tawv ntawm cov khoom siv pub: piv txwv li, cov pob zeb muaj silica ntau xws li granite, basalt, thiab hlau ore ua rau hnav tsis zoo sai dua li cov khoom mos xws li limestone lossis thee. Txawm tias rau cov khoom siv uas tiv taus kev hnav tsis zoo, kev pub mis tsis sib xws thiab cov khoom me me ntau dhau tuaj yeem ua rau kev hnav tsis zoo sai dua, vim tias cov khib nyiab me me ua haujlwm zoo li ntawv xuab zeb ntawm cov khoom sib tsoo.
Qhov thib ob uas feem ntau ua tsis tiav yog qhov ua tsis tiav vim raug cuam tshuam. Qhov no feem ntau tshwm sim hauv cov tshuab tsoo lub puab tsaig, cov tshuab tsoo uas raug cuam tshuam, thiab cov tshuab tsoo rauj, qhov twg cov khoom hnav ntsib kev cuam tshuam ntau zaus los ntawm cov khoom siv pub. Raws sijhawm, cov khoom siv cuam tshuam ib puag ncig tsim cov kab nrib pleb me me ntawm qhov chaw ntawm qhov khoom; cov kab nrib pleb no nthuav dav nrog kev siv txuas ntxiv, thaum kawg ua rau chipping, fracturing, lossis txawm tias tag nrho tawg ntawm cov khoom. Kev ua tsis tiav vim raug cuam tshuam feem ntau ua rau cov khoom noj loj dhau, cov khoom txawv teb chaws uas tsis tuaj yeem tsoo (xws li cov hlau seem lossis cov laum) hauv cov khoom noj, thiab cov nqi pub tsis sib xws uas ua rau muaj kev thauj khoom ntau dhau tam sim ntawd.
Qhov thib peb, kev hnav corrosive yog ib qho uas feem ntau tsis quav ntsej tab sis cuam tshuam rau kev ua tsis tiav, tshwj xeeb tshaj yog hauv kev siv mining. Thaum ua cov ores uas muaj cov sulfur ntau, cov minerals acidic, lossis cov khoom siv dej noo, kev xeb tshuaj lom neeg ua rau cov qauv hlau ntawm qhov hnav tsis muaj zog. Kev xeb tsim cov qhov thiab cov chaw porous ntawm qhov chaw, uas tsis tsuas yog txo qhov tuab ntawm qhov khoom tab sis kuj ua rau cov khoom siv abrasive hnav thiab tawg. Hauv cov chaw ntub dej, kev sib xyaw ua ke ntawm kev xeb thiab kev puas tsuaj tuaj yeem txo qhov hnav lub neej txog li 40% piv rau cov xwm txheej ua haujlwm qhuav.
Thaum kawg, kev teeb tsa tsis raug thiab kev ua haujlwm tsis raws li tus qauv yog qhov ua rau muaj kev puas tsuaj sai sai. Txawm tias cov khoom siv zoo tshaj plaws yuav puas tsuaj sai sai yog tias teeb tsa tsis raug: piv txwv li, qhov sib txawv tsis raug, kev nruj ntawm cov khoom siv tsis txaus, lossis kev sib dhos tsis sib xws tuaj yeem ua rau muaj kev ntxhov siab tsis sib xws, kev hnav ntau dhau hauv zos, thiab txawm tias tawg sai sai. Tsis tas li ntawd, cov txheej txheem ua haujlwm tsis raug ntawm lub crusher - xws li qhov chaw kaw nruj dhau (CSS), qhov ceev ntawm rotor tsis sib xws, lossis kev ua haujlwm ntau dhau mus ntev - kuj tseem yuav ua rau kev hnav sai dua thiab ua rau lub neej ua haujlwm luv dua.
Cov Tswv Yim Uas Tau Pom Zoo Los Ntev Lub Neej Kev Pabcuam ntawm Cov Khoom Siv Hnav
Kev ua kom lub tshuab crusher siv tau ntev dua tsis yog tsuas yog xaiv cov khoom siv uas nyuaj tshaj plaws xwb, tab sis kuj yog kev sib xyaw ua ke ntawm kev sib phim cov khoom siv, kev ua kom zoo dua qub, thiab kev saib xyuas tus qauv. Hauv qab no yog cov tswv yim uas siv tau thiab tau sim hauv thaj teb uas muab cov txiaj ntsig ntsuas tau rau cov neeg ua haujlwm.
Ua ntej tshaj plaws, xaiv cov khoom siv kom raug rau cov xwm txheej ua haujlwm tshwj xeeb. Qhov yuam kev loj tshaj plaws uas cov neeg ua haujlwm ua yog xaiv ib qho khoom siv uas haum rau txhua tus, es tsis txhob phim cov khoom siv rau daim ntawv thov. Piv txwv li, austenitic manganese steel (xws li Mn13Cr2) yog qhov zoo tagnrho rau cov xwm txheej crushing uas muaj kev cuam tshuam siab, vim nws ua haujlwm-tawv hauv qab kev cuam tshuam los tsim ib qho chaw uas tsis yooj yim hnav thaum tseem khaws cov tawv sab hauv. Rau cov xwm txheej uas tsis tshua muaj kev cuam tshuam, kev sib txhuam siab, cov hlau cam khwb cia dawb high-chromium muaj kev tiv thaiv kev sib txhuam zoo dua. Rau cov xwm txheej ua haujlwm nyuaj nrog ob qho kev cuam tshuam siab thiab kev sib txhuam siab, cov ntaub ntawv bimetallic composite sib xyaw ua ke qhov tawv ntawm manganese steel nrog kev tiv thaiv kev hnav ntawm high-chromium alloy, xa 30-50% kev pabcuam ntev dua li cov ntaub ntawv ib leeg. Kev ua haujlwm nrog lub chaw tsim khoom tshaj lij uas tuaj yeem hloov kho cov qauv khoom siv raws li koj cov khoom pub tshwj xeeb thiab cov xwm txheej ua haujlwm yog qhov tseem ceeb rau kev ua kom lub neej ntawm ib feem ntev tshaj plaws.
Qhov thib ob, ua kom zoo dua kev tswj cov khoom noj kom txo tau qhov hnav tsis tsim nyog. Kev xyuas kom meej tias qhov loj ntawm cov khoom noj pub rau hauv qhov kev qhia tshwj xeeb ntawm lub crusher tshem tawm qhov kev cuam tshuam ntau dhau uas ua rau tawg tsis ua haujlwm. Kev teeb tsa cov khoom ntes hlau thiab cov khoom sib nqus sib cais hauv kab pub mov tshem tawm cov khoom txawv teb chaws uas tsis tuaj yeem tsoo, tiv thaiv kev puas tsuaj loj heev rau cov khoom hnav. Tsis tas li ntawd, kev tswj hwm qhov nrawm sib xws, sib npaug pub mov kom tsis txhob muaj kev thauj khoom tsis sib xws thiab kev hnav hauv zos, thaum kev tshuaj ntsuam ua ntej kom tshem tawm cov khoom me me ntau dhau txo qhov hnav ntawm cov khoom sib tsoo.
Qhov thib peb, siv cov txheej txheem kev teeb tsa thiab kev saib xyuas tsis tu ncua. Ua raws li cov lus qhia ntawm cov chaw tsim khoom kom ntseeg tau tias muaj kev sib haum xeeb thiab kev faib tawm kev ntxhov siab thoob plaws qhov hnav. Rau cov phaj crusher lub puab tsaig, kev tig tas li ntawm cov phaj puab tsaig ruaj khov thiab txav tau tuaj yeem sib npaug cov qauv hnav, vim tias qhov seem qis ntawm cov phaj puab tsaig feem ntau hnav sai dua li qhov seem sab saud. Kev tshuaj xyuas pom txhua hnub thiab kev kuaj xyuas lub zog ntawm cov khoom siv tsis tu ncua tuaj yeem ntes cov khoom xoob lossis cov cim qhia ntxov ntawm kev hnav ua ntej lawv ua rau muaj kev puas tsuaj loj heev, txo qis lub sijhawm tsis tau npaj tseg.
Thaum kawg, siv cov thev naus laus zis casting thiab kev kho cua sov los ntawm cov neeg muag khoom muaj npe nrov. Kev ua tau zoo ntawm cov khoom hnav tsis yog txiav txim siab los ntawm cov khoom siv sib xyaw xwb tab sis kuj los ntawm cov txheej txheem tsim khoom. Cov txheej txheem casting precision, xws li poob ua npuas ncauj casting, xyuas kom meej tias cov khoom siv sib xws thiab cov khoom tsis muaj qhov tsis zoo, thaum kho cua sov zoo tshaj plaws (xws li dej toughening rau manganese hlau thiab quenching-tempering rau high-chromium hlau) ua rau qhov nyuaj thiab tawv ntawm cov khoom siv siab tshaj plaws. Lub chaw tsim khoom tshaj lij nrog kev tswj hwm zoo nruj tuaj yeem xa cov khoom hnav nrog kev ua tau zoo tas li, zam kev hloov pauv ntawm ib pawg mus rau ib pawg uas ua rau lub neej tsis paub tseeb.
Xaus lus
Lub neej ua haujlwm ntawm cov khoom siv crusher yog qhov tshwm sim ntawm kev xaiv cov khoom siv, kev ua haujlwm, thiab kev txij nkawm. Los ntawm kev nkag siab txog cov hauv paus ntawm kev ua tsis tiav thiab kev siv cov tswv yim tau teev tseg saum toj no, cov neeg ua haujlwm tuaj yeem ua kom lub neej ntawm cov khoom siv hnav ntev dua, txo lub sijhawm tsis ua haujlwm, thiab txo cov nqi tsim khoom tag nrho.
Ua ib lub tuam txhab tsim khoom uas tshwj xeeb hauv kev tsim cov khoom siv crusher nrog ntau xyoo ntawm kev paub txog kev casting, peb cog lus tias yuav muab cov kev daws teeb meem kev hnav khaub ncaws ua tau zoo, tsim tshwj xeeb rau peb cov neeg siv khoom cov xwm txheej ua haujlwm tshwj xeeb. Peb pab neeg ntawm cov kws tshaj lij metallurgy thiab cov neeg ua haujlwm engineering ua haujlwm nrog cov neeg siv khoom kom zoo dua qub kev xaiv cov khoom siv thiab kev tsim cov khoom, pab cov neeg ua haujlwm mining thiab quarrying thoob ntiaj teb ua tiav kev ua haujlwm zoo dua thiab muaj txiaj ntsig zoo dua.
Lub sijhawm tshaj tawm: Lub Peb Hlis-18-2026