Nthuav dav ntawm Chromite Beneficiation Method
Chromite muaj cov yam ntxwv ntawm kev kub siab thiab nruab nrab ntawm cov txheej txheem kev sib cais, thiab cov kev hnav khaub ncaws sib xyaw ua ke, kev sib cais sib sib zog nqus qauv, txoj kev sib cais thiab lwm txoj kev pab. Kev tsim qauv ntawm chromite beneficiation method yuav tsum tau tsim raws li qhov xwm ntawm chromite ore thiab ntau yam, nyob rau hauv ib txwm muaj xwm txheej, chromite beneficiation siv lub ntiajteb txawj nqus sib cais, thiab ib tug neeg thaj chaw kuj siv siab sib nqus sib nqus sib cais thiab flotation txoj kev ntxuav.
Txoj kev hnav khaub ncaws ntawm chromite tsuas yog nyob ntawm qib, purity, particle loj ntawm chromite, muaj pes tsawg leeg thiab ntau ntawm gangue ntxhia. Chromite muaj siab ceev thiab tsis muaj zog hlau nplaum. Cov ntxhia ua cov txheej txheem ntawm chromite tsis zoo ore hauv Suav teb tau siv jig, shaker, kauv ore concentrator, centrifugal ore concentrator thiab siv chute cais cov chromium tsis zoo ore (Cr 23 < 20%), thiab tseem siv hydraulic sib cais raj los cais cov ore. hauv shaker. Qhuav high siv sib nqus sib cais, ntub high siv sib nqus sib cais, flotation thiab ntau yam tshuaj sib cais txoj kev tau kawm nyob rau hauv lub laboratory. Tab sis nyob rau hauv qhov tseeb ntau lawm, lub ntiajteb txawj nqus sib cais feem ntau yog siv, thiab ib co mines siv siab sib nqus sib nqus sib cais.
Cov kev hnav khaub ncaws feem ntau siv ntawm chromite feem ntau suav nrog kev sib cais sib nqus, sib nqus sib nqus thiab flotation. Hauv qab no, cia peb nkag siab txog kev hnav khaub ncaws ntawm chromite ib qho los ntawm ib qho.
1, chromite beneficiation method - Lub ntiajteb txawj nqus sib cais txoj kev piav qhia ntxaws:
Chromite ores feem ntau yog nyob rau hauv lub xeev loj heev, sawb thiab porphyric coarse-grained disseminated, thiab qhov ceev yog loj, yog li lub ntiajteb txawj nqus sib cais yog ib txoj hauv kev zoo xaiv. Tam sim no, lub ntiajteb txawj nqus sib cais txoj kev xws li tuav lub rooj thiab jigging yog siv los rov qab chromite hauv kev xyaum ntau lawm.
Shaker sorting chromite: Shaker yog tsim rau nplua grained chromite ore sorting, ua particle loj ntau yam yog feem ntau 3-0.019mm, sorting yog lub txaj nto longitudinal thiab transverse txaus ua kom tiav, ntau dua sorting raug, yuav tau txais ib tug ntau dua enrichment. piv, tab sis nws lub peev xwm ua tau tsawg, nyob thaj tsam loj.
Jig sib cais chromite: Jig yog tsim rau kev ua ntxhib thiab nruab nrab me me chromite ore, kev ua cov khoom siv dav dav yog 35-0.1mm, tuaj yeem tau txais cov khoom kawg hauv ib qho kev sib cais.
2, chromite beneficiation method - chromite sib nqus sib cais txoj kev piav qhia ntxaws:
Lub hardness ntawm chromite yog 5.5, lub ntiajteb txawj nqus yog 4.2 ~ 4.8, nrog tsawg sib nqus sib cais, yog li sib nqus sib cais kuj yog ib tug zoo sib cais txoj kev, siv tau tsawg sib nqus sib cais, siab sib nqus sib cais thiab lwm yam kev xaiv chromite.
Tsawg siv sib nqus sib nqus chromite: qis sib nqus sib nqus sib cais tuaj yeem tshem tawm cov hlau nplaum zoo, txhim kho chrome-hlau piv ntawm kev mloog zoo, thiab ntxiv dag zog thiab xaiv cov khoom tsim nyog chromite concentrate. Hauv particular, nws yog ib qho tseem ceeb heev rau cov tsis tsim nyog concentrates uas muaj ib tug me me ntawm magnetite nyob rau hauv chromite concentrate cov khoom tom qab lub ntiajteb txawj nqus sib cais.
High sib nqus sib nqus sib cais ntawm chromite: siab siv sib nqus sib cais ntawm chromite yog tshem tawm cov hlau nplaum nrog lub nruab nrab sib nqus sib nqus, thiab tom qab ntawd rov qab chromite nrog lub siab sib nqus sib nqus cais thiab cais cov zaub mov gangue. Nws yog tsim nyog rau lub ntiajteb txawj nqus sib cais ntawm nplua minerals uas tsis tuaj yeem rov qab zoo.
3, chromite beneficiation method - chromite flotation method piav qhia ntxaws:
Flotation yog txoj hauv kev tseem ceeb rau kev sib cais ntawm nplua chromite. Nws yog suav tias yog siv thaum cov teebmeem ntawm lub ntiajteb txawj nqus sib cais thiab siab sib nqus sib nqus sib cais tsis zoo. Txoj kev flotation ntawm anionic collector thiab cationic collector feem ntau yog siv.
Anion collector flotation chromite: Nws yog ib qho tsim nyog yuav tsum tau ua kom tag nrho disperse lub pulp, xaiv flocculate cov ntxhia, thiab ua ntej flotation ntawm chromium minerals. Yog li ntawd, cov ntxhia yuav tsum tau sib cais tag nrho thaum lub sij hawm sib tsoo, thiab cov alkali yuav tsum tau ntxiv kom paub meej pH tus nqi ntawm cov tawv nqaij (pH {{0}}.0 ~ 11.5), thiab tom qab ntawd cov dispersant yuav tsum tau ntxiv rau. ua rau lub pulp tsim ib tug ruaj khov dispersion system, thiab ces cov xaiv flocculant yog ntxiv rau lub dispersed pulp kom cov nplua gangue flocculate. Txawm li cas los xij, yuav tsum tau saib xyuas kom tsis txhob tsim cov anionic collector films ntawm gangue minerals uas tau flocculated.
Cationic collector flotation chromite: kev ua haujlwm zoo sib tsoo yuav tsum ua kom tiav monomer dissociation ntawm cov zaub mov, tab sis ntau cov slime yuav raug tsim, yog li kev ua haujlwm ua ntej desliming yuav tsum tau ua ua ntej flotation, txwv tsis pub ntau cov chromite yuav ploj.
Ntxiv rau qhov tsis zoo thiab cationic collectors, muaj qee cov khoom tshiab, xws li n-oleate amine moline chlorol, saccharic acid diallyl methanol adduct, thiab lwm yam, tuaj yeem siv rau kev sib cais ntawm chromium ores uas muaj 26% Cr2O3.
Qee lub sij hawm lub ntiajteb txawj nqus yuav tsum tau reconcentrated los ntawm tsawg sib nqus los yog siab sib nqus sib nqus kom ntxiv txhim kho qib ntawm chromium concentrate thiab qhov piv ntawm chromium rau hlau. Thaum sib nqus sib nqus siv los cais cov chromite ore, ib txoj kev sib nqus sib nqus tsis tshua siv, thiab nws feem ntau yog siv ua ke nrog cov txheej txheem sib nqus sib cais.
Qhov tshwj xeeb lub ntiajteb txawj nqus ntawm chromite yog 4.1 ~ 4.7g / cm3, cov kab mob sib txuas thiab silicate hlau ntxhia tshwj xeeb lub ntiajteb txawj nqus yog feem ntau 2.7 ~ 3.2g / cm3, siv qhov sib txawv ntawm cov ntxhia ntom ntom, tuaj yeem siv kauv chute, jig, co rooj, kauv. Separator, centrifuge thiab lwm yam khoom siv sib nqus sib cais rau kev txheeb xyuas. Txoj kev siv nyiaj ntawm chromite yog tsim rau chromite nrog ntxhib siv lead ua loj, thiab nplua nplej yog ib qho yooj yim kom poob rau hauv tailings.
Qhov luaj li cas ntawm chromite feem ntau yog nruab nrab thiab zoo, yog li cov khoom siv feem ntau muaj xws li crusher, pas nrig zeb, thiab lwm yam. , kev siv cov pas nrig zeb tuaj yeem ua tiav feem ntau ntawm kev sib cais monomer tom qab sib tsoo, tom qab ntawd xaiv cov pas nrig zeb - cov txheej txheem jigging, xws li qhov loj me me, nws yog ib qho tsim nyog yuav tsum siv lub pob zeb sib tsoo, thiab cov khoom sib tsoo nkag. cov txheej txheem siab sib nqus sib nqus los yog cov txheej txheem flotation tom qab ncav cuag monomer dissociation.
Chromite ntxhia ua cov txheej txheem Crushing: Nyob rau hauv cov txheej txheem chromite ntxhia ua, cov txheej txheem crushing siv ob theem ntawm lub puab tsaig crushing, crushing cov raw ore mus rau 30 hli hauv qab no, thiab ces thauj mus rau tom ntej silo los ntawm conveyor.
Cov txheej txheem sib tsoo: cov txheej txheem sib tsoo siv lub pas nrig zeb sib tsoo, vim hais tias cov chromite faib particle loj me ntsis ntxhib, los ntawm ib qho yooj yim qws zeb sib tsoo tuaj yeem ua tiav monomer sib cais, thaum lub pas nrig zeb tso zis siab, cov khoom particle loj yog uniform thiab adjustable, yog qhov zoo tagnrho chromite sib tsoo khoom. Lub vibrating feeder yog teem nyob rau hauv lub silo kom tusyees pub cov khoom tawg mus rau lub pas nrig zeb rau kev sib tsoo.
Chromite beneficiation method gravity separation process: Lub hauv ntej tau raug txo mus rau, chromite faib particle loj yog feem ntau ntxhib, siv cov pas nrig zeb sib tsoo kom tiav monomer sib cais tom qab nkag mus rau hauv lub ntiajteb txawj nqus sib cais txheej txheem, thiab cov cuab yeej haum rau chromite gravity sib cais yog mas jig. thiab shaker, jig ua lub peev xwm loj, cov nyhuv ntxhib ntawm chromite yog qhov tseem ceeb, yog li cov txheej txheem nqus roughing siv lub peev xwm loj, siab rov qab ntawm trapezoid jig. Vim hais tias cov nyhuv rov qab ntawm cov jig ntawm cov hmoov zoo ore tsis pom tseeb, lub rooj sib tsoo tuaj yeem teeb tsa tom qab lub jig tail ore los cheb thiab rov qab cov ferrochrome ploj los txhim kho tus nqi rov qab ntawm tag nrho cov txheej txheem.
Jig yog cov cuab yeej sib nqus sib cais tseem ceeb hauv cov txheej txheem chromite concentration, thiab qhov kawg mloog zoo tuaj yeem sib cais ib zaug hauv kev ua haujlwm ib txwm muaj. Lub shaker feem ntau yog siv los ua cov khoom sib cais uas muaj peev xwm ua tau me me tab sis muaj kev txhawb nqa siab. Nyob rau hauv cov txheej txheem no, cov tailings ntawm lub jig yog swept thiab txheeb kom zoo-grained chromite. Cov txheej txheem no yog tsim nyog rau kev ntxuav thiab ntxuav ntawm ntxhib thiab nruab nrab qib chromite, thiab qib zoo los yog micro-fine qib chromite embedded yuav tsum tau sib tham sib cais. Tsis tas li ntawd, rau kev ua cov ntxhia hauv cov xuab zeb chromite, nws tseem yuav tsum tau txiav txim siab cov txheej txheem ua cov ntxhia thiab cov cuab yeej teeb tsa raws li qhov tseeb.
Qhov kev xaiv ntawm chromite beneficiation method yog ze ze rau lub cev thiab tshuaj lom neeg ntawm chromite. Vim tias qhov tshwj xeeb lub ntiajteb txawj nqus ntawm chromium ore yog 4.3-4.6 thiab Mohs hardness yog 5. tau mature heev. Ntxiv mus, vim hais tias cov txheej txheem sib cais lub ntiajteb txawj nqus tsis muaj kuab paug rau ib puag ncig, lub ntiajteb txawj nqus sib cais txheej txheem ntawm chromium ore tau nrov thiab siv nyob rau hauv loj mine concentrators. Cov txheej txheem tshwj xeeb ntawm lub ntiajteb txawj nqus ntxhia ua yog tias cov ore raw nkag mus rau hauv cov ntxhib crushing los ntawm raw ore bin los ntawm cov ore feeder, cov ntxhib crushing nkag mus rau cov nplua crushing, thiab cov nplua crushing nkag mus rau hauv cov hmoov ore hauv. Cov hmoov ore yog pub rau hauv lub pob zeb los ntawm txoj siv conveyor, thiab lub pob zeb yog nruab nrog lub ntsej muag sib tsoo lub taub hau, uas cov khoom ntawm lub vijtsam raug thauj rov qab mus rau lub pob zeb rau kev sib tsoo, thiab cov khoom hauv qab ntawm lub vijtsam nkag. spiral chute rau roughing. Ib feem ntawm cov concentrate yog tsim los ntawm ntxhib sorting nyob rau hauv lub kauv chute. Cov ore nruab nrab raug xa rov qab rau kev rov txheeb xyuas dua, thiab cov tailings nkag mus rau hauv lub kauv chute rau cheb thiab sorting. Cov concentrates swept los ntawm kauv chute nkag mus rau hauv shaker thiab raug xaiv, nruab nrab ore raug xa rov qab thiab cov tailings raug pov tseg. Lub coarse concentrate nyob rau hauv lub shaker yog lwm feem ntawm cov concentrate, cov ore nyob rau hauv lub shaker yog xa rov qab rau re-sorting, lub tailings ntawm shaker raug pov tseg, thiab tag nrho cov concentrate nkag mus rau hauv lub tank sedimentation rau lub cev qhuav dej. Cov tailings swept los ntawm cov kauv chute thiab cov tailings ntawm lub rooj co co yog ua ke mus rau hauv tag nrho cov tailings, uas nkag mus rau hauv lub tailings sedimentation tank rau precipitate ib feem ntawm cov tailings, thiab ces nkag mus rau hauv lub pas dej tailings, thiab cov dej ntshiab nyob rau hauv lub pas dej tailings. yog recycled rau reuse.
Cov txiaj ntsig ntawm chromite hauv Philippines: Cov ntsiab lus chromium ntawm chromite hauv Philippines yog tsawg, txog 4.8%, cov av nkos ntawm cov ore yog siab heev, feem ntau yog chromite ore xuab zeb, muaj cov pob zeb ntxhib ntxhib heev, vim yog Qhov loj viscosity ntawm cov av nkos nyob rau hauv cov ore, nws yog ib qhov tsim nyog yuav tsum tau mus los ntawm ib tug tsim nyog lub lag luam ua ntej beneficiation mus ua hauj lwm sorting tom ntej no, tom qab tus neeg muas zaub teb ntau lawm xyaum pom tias tom qab ib tug yooj yim ntxuav ore, qib ntawm chromite yuav ua tau. nce ntawm 4.8% mus rau 30-35%, nws tuaj yeem pom tau tias cov ntsiab lus ntawm cov av nkos hauv cov ore yog qhov tseeb siab, tab sis kev ua haujlwm tsis raug ntawm kev ua haujlwm ntxhua lossis siv cov khoom siv ntxhua khaub ncaws tsis tsim nyog yuav ua rau txo qis hauv kev rov qab los. ntawm beneficiation los yog tsis muaj peev xwm ua, yog li cov neeg siv khoom txhob txwm nrhiav Fery Machinery, Nws yog cia siab tias peb lub Hoobkas tuaj yeem muab lawv nrog cov txheej txheem tsim nyog thiab cov txiaj ntsig zoo tshaj plaws thiab cov lus qhia txog kev teeb tsa. Ua ntej tshaj plaws, kev ua haujlwm ntxhua khaub ncaws siv rab phom dej yooj yim yog txoj kev tsis tsim nyog, kev ntxuav phom dej rau chromite ore ntxuav cov nyhuv yog txwv heev, txawm hais tias nws tuaj yeem txhim kho qib ntawm cov ore raw rau qee qhov, tab sis qhov ua rau poob. chromite kuj tseem yog qhov ntsuas tsis tau, txhawm rau txhawm rau txhim kho qhov rov ua kom zoo dua ntawm kev ntxuav, nws yog ib qho tsim nyog yuav tsum tau hloov cov phom dej rau lub tshuab ntxhua khaub ncaws, hloov tag nrho txoj kev ntxuav ore. Txhawm rau txhim kho qhov ua tau zoo thiab cov txiaj ntsig ntawm ore ntxuav. Xws li zoo chromite ore ntxhua hauv Philippines, yuav tsum tau siv kauv tshuab ntxhua khaub ncaws rau ntxhua, kauv tshuab ntxhua khaub ncaws raws li cov neeg siv khoom yuav tsum tau ua rau hauv lub tshuab ntxhua khaub ncaws ob chav, lub tshuab ntxhua khaub ncaws loj thiab lwm yam tshwj xeeb, kom tau raws li cov khoom sib txawv. , thiab kauv tshuab ntxhua khaub ncaws kom zoo chromite ntxuav cov nyhuv kuj pom tseeb heev, tus nqi rov qab tuaj yeem ncav cuag qhov txaus siab. Tom qab lub tshuab ntxhua khaub ncaws ntxhua khaub ncaws, cov av nkos hauv cov chromite tau raug txwv heev, thiab cov viscosity tau raug ntxuav, thiab tsuas yog qee cov pob zeb pov tseg zoo cuam tshuam rau qib ntawm chromite hauv chromite ore. Yog li ntawd, ntxiv rau kev ua haujlwm ntxhua khaub ncaws, nws tseem yuav tsum tau ua kom muaj txiaj ntsig thiab ua kom huv huv.
Txoj kev siv ntau tshaj plaws ntawm chromite beneficiation txoj kev yog lub ntiajteb txawj nqus sib cais txoj kev, qhov tseeb ntau lawm kuj yog feem ntau siv lub ntiajteb txawj nqus sib cais txoj kev, raws li tej yam ntxwv ntawm minerals kuj yuav siv tau muaj zog sib nqus sib cais txoj kev. Cov khoom siv feem ntau siv rau kev sib cais chromite los ntawm kev sib cais ntawm lub ntiajteb txawj nqus yog Jig, uas muaj kev ua haujlwm siab thiab rov ua haujlwm siab, tuav txoj haujlwm tsis tuaj yeem hloov pauv hauv thaj tsam ntawm chromite beneficiation thiab purification, thiab tseem yog cov khoom siv siv ntau tshaj plaws ntawm chromite beneficiation. Feem ntau siv chromite ore hnav khaub ncaws jig yog feem ntau trapezoidal jig thiab down-tsiv jig. Tom qab kev ua haujlwm ntxuav, cov chromite tsis muaj av nkos, thiab cov viscosity raug txo kom tsawg, yog li yuav tsis muaj chromite qhwv hauv av thiab tsis zoo zoo, uas kuj zoo heev txhim kho tus nqi rov qab ntawm chromite hnav khaub ncaws.
Cov saum toj no yog cov feem ntau siv chromite beneficiation txoj kev. Tsis tas li ntawd, muaj qee txoj kev siv tshuaj lom neeg tuaj yeem xaiv cov chromite, xws li xaiv leaching, reoxidation, yaj cais, sulfuric acid thiab chromic acid leaching, txo thiab sulfuric acid leaching txoj kev, tuaj yeem txhim kho txoj kev siv lub cev ntawm cov zis ntawm concentrate chromite. hlau piv. Thaum kawg, raws li kev xaiv ntawm cov txheej txheem, nws yog ib qho tsim nyog yuav tsum tau ua qhov kev ntsuam xyuas cov txiaj ntsig ntawm chromite ua ntej, txheeb xyuas cov ntsiab lus thiab cov qauv ntawm cov ore raw, thiab kho cov txheej txheem kev pab cuam txhawm rau kom tau txais txiaj ntsig zoo. qhov ntsuas.