Lub luag haujlwm ntawm Thickening yog dab tsi?

Cov txheej txheem tuab yuav cuam tshuam nrog kev sib cais ntawm cov kua-kua sib xyaw ua ke rau cov dej ntws ntom thiab muaj qhov meej me me hauv qhov raug. Cov yav tas los muaj cov khoom siv thiab cov tom kawg tsis suav cov impurities ntau li ntau tau. Txoj kev sib cais yog qhov tshwm sim ntawm lub ntiajteb txawj nqus. Txhua qhov sib txawv ntawm qhov sib txawv thiab qhov ntom ntom tsim cov txheej txheem sib txawv los ntawm lub tank.

Thickening txheej txheem tshwm sim nyob rau hauv lub sedimentation tank nyob rau hauv cov ntxhia ua rau kev sib cais ntawm concentrates thiab tailings.

Yuav tsum ntsuas cov ntsiab lus hauv Thickening

Online kua density metersyog xav tau los optimize kev khiav hauj lwm ntawm thickeners. Piv txwv li, cov ntsiab lus kev teeb tsa muaj xws li pub, underflow, overflow thiab sab hauv ntawm lub thickener tank. Hauv cov xwm txheej saum toj no, cov sensors tuaj yeem raug coj los ua tusslurry ceev meterlos yogsludge density meter. Lawv kuj tseem pab tau rau kev txhim kho kev tswj tsis siv neeg ntawm cov tsav tsheb, twj tso kua mis thiab kom muaj txiaj ntsig zoo ntawm flocculants.

Yog vim li cas rau kev ntsuas qhov ntom

Yog vim li cas rau qhov ntsuas qhov ntom yuav txawv ib qho los ntawm ib qho. Tsib yam xwm txheej hauv qab no qhia txog qhov tseem ceeb ntawm kev saib xyuas qhov ntom ntom rau kev ua kom zoo dua qub.

No. 1 Water Recovery

Dej yog suav tias yog ib qho ntawm cov cuab yeej tseem ceeb tshaj plaws hauv kev lag luam mining thiab ntxhia. Yog li ntawd, dej rov qab los yog dej rov siv dua txuag nqi ntawm thickening heev. Kev loj hlob me me ntawm 1-2% nyob rau hauv underflow ceev txhais tau hais tias ntau cov dej xav tau rau kev khiav hauj lwm installation. Qhov nce ntawm qhov ntom ntom ua haujlwm zoo hauv kev lav qhov ruaj khov hauv cov tailing dams, uas yuav vau yog tias muaj kua ntau dhau mus rau cov dams.

No. 2 Mineral Recovery

Hauv cov concentrate thickeners, cov khoom noj feem ntau yog los ntawm flotation circuit. Flotation cuam tshuam cov khoom sib cais ntawm lub ntiajteb txawj nqus. Hauv lwm lo lus, cov uas txuas nrog cov npuas npuas nce mus rau saum npoo thiab raug tshem tawm, thaum lwm tus nyob hauv cov kua theem. Thaum cov txheej txheem no tshwm sim hauv cov khoom thickener, ua npuas ncauj tuaj yeem nqa cov khib nyiab rau hauv cov dej ntws.

Cov khib nyiab no muaj txiaj ntsig thiab, yog tias tsis rov qab los, tuaj yeem txo qhov kev rov zoo tag nrho ntawm cov hlau concentrated. Tsis tas li ntawd, cov khib nyiab hauv cov dej ntws tuaj yeem ua rau cov nqi reagent ntau dua, kev puas tsuaj rau cov twj thiab cov li qub, thiab kev siv nyiaj ntau ntxiv, xws li kev ntxuav cov dej tso tsheb hlau luam thaum cov khoom sib xyaw ua ke.

Kwv yees li 90% ntawm cov khib nyiab poob hauv cov dej ntws thaum kawg tau rov qab los ntawm cov txheej txheem tom qab (piv txwv li, hauv cov tso tsheb hlau luam thiab cov dams). Txawm li cas los xij, qhov seem 10%, uas sawv cev rau tus nqi tseem ceeb ntawm kev lag luam, tau ploj mus tas li. Yog li ntawd, txo qhov poob ntawm cov khib nyiab rau hauv cov dej ntws yuav tsum yog qhov tseem ceeb. Kev nqis peev hauv cov txheej txheem tswj cov thev naus laus zis tuaj yeem txhim kho tus nqi rov qab thiab xa rov qab sai ntawm kev nqis peev.

Kev siv Lonnmeterdensity metersthiabflow metersnyob rau hauv lub underflow enables zoo saib xyuas ntawm thickener kev ua tau zoo. Kev tshawb pom tiag tiag ntawm cov khib nyiab hauv cov dej ntws tawm kuj tseem ua tau nrog qhov ntom ntom lossis cov khib nyiab ntsuas. Cov cuab yeej '4-20mA cov teeb liab tuaj yeem muab tso rau hauv kev tswj hwm kev ua haujlwm ncaj qha.

3 Siv tau zoo Flocculant

Flocculants ua hauj lwm hauv kev txhim kho sedimentation efficiency, uas yog cov tshuaj pab kom cov khoom nyob rau hauv cov kua rau clump ua ke. Kev noj cov tshuaj flocculants suav nrog kev tswj tus nqi ntawm cov reagent thiab kev ua haujlwm zoo. Lub ntsuas qhov ntom ntom tso cai rau kev tswj kom nruj thiab txhim khu kev qha rau cov khoom noj thickener. Lub hom phiaj yog kom ua tiav qhov feem pua ​​​​ntawm cov khib nyiab ntau tshaj plaws los ntawm qhov hnyav hauv cov khoom noj slurry thaum tseem pub dawb particle nyob. Yog tias cov pub mis slurry density tshaj lub hom phiaj, cov dej cawv ntxiv yuav tsum tau ntxiv, thiab yuav tsum tau ua kom muaj kev sib xyaw kom zoo.

Kev ntsuas qhov ceev ntawm lub sijhawm ntawm cov khoom siv slurry siv lub ntsuas ntsuas inline yog qhov tseem ceeb rau kev tswj cov txheej txheem. Qhov no ua kom zoo siv flocculant thiab optimizes cov txheej txheem sib tov, ua kom cov thickener khiav hauv nws lub hom phiaj ntau.

4 Kev tshawb pom tam sim ntawm Flocculation teeb meem

Cov neeg ua haujlwm siv zog ua kom muaj kev ruaj ntseg hauv cov thickeners, ua tiav qhov kev nthuav dav dav nrog cov khib nyiab tsawg thiab cov dej ntom ntom nrog cov kua tsawg. Txawm li cas los xij, cov txheej txheem txheej txheem tuaj yeem hloov pauv raws sijhawm, uas ua rau muaj kev daws teeb meem tsis zoo, txo qis qis qis, thiab cov khib nyiab ntau dua hauv cov dej ntws. Cov teeb meem no tuaj yeem tshwm sim los ntawm cov teeb meem flocculation, huab cua lossis ua npuas dej hauv lub tank, lossis cov khib nyiab ntau dhau ntawm cov khoom noj.

Instrumentation thiab automation tuaj yeem pab cov neeg ua haujlwm tswj xyuas los ntawm kev txheeb xyuas cov teeb meem no hauv lub sijhawm. Tshaj li kev ntsuas inline, tank-based instrumentation zoo li ultrasonic txaj theem sojntsuam tuaj yeem muab cov kev pom tseem ceeb. Cov "diver" probes txav mus rau hauv lub tank, profileing av nkos theem, nyob thaj tsam, thiab overflow clarity. Kev ntsuas qib txaj yog qhov tshwj xeeb tshaj yog rau cov tswv yim tswj flocculation, kom ntseeg tau tias kev ua haujlwm zoo ib yam.