Kev koom tes muaj tswv yim tshiab, nrhiav kev ua kom tau zoo

Qhia Koj Paub Txog Kev Ua Kom Huv Si ntawm Kaolin Hauv Zaj Lus No!

Kaolin yog cov av nplaum ib txwm ua hauv ntiaj teb ntuj. Nws yog cov khoom siv muaj txiaj ntsig rau cov xim dawb, yog li ntawd, whiteness yog qhov ntsuas tseem ceeb cuam tshuam rau tus nqi ntawm kaolin. Muaj cov hlau, organic teeb meem, cov khoom siv tsaus thiab lwm yam impurities hauv kaolin. Cov impurities no yuav ua rau kaolin pom cov xim sib txawv, muaj feem xyuam rau qhov pom zoo. Yog li kaolin yuav tsum tshem tawm cov impurities.

Cov kev ua kom huv si ntawm kaolin suav nrog lub ntiajteb txawj nqus sib cais, sib cais sib nqus, hloov ua kua, kev kho tshuaj, thiab lwm yam. Hauv qab no yog cov kev ua kom huv si ntawm kaolin:

1. Lub ntiajteb txawj nqus sib cais
Lub ntiajteb txawj nqus sib cais kev siv tshwj xeeb tshaj yog siv qhov sib txawv ntawm qhov sib txawv ntawm gangue ntxhia thiab kaolin kom tshem tawm qhov siab ntawm qhov tsis haum ntawm lub teeb organic, quartz, feldspar thiab cov ntsiab lus muaj hlau, titanium thiab manganese, thiaj li txo cov cawv ntawm impurities ntawm lub ntsej muag dawb. Centrifugal concentrator feem ntau yog siv los tshem tawm qhov kub siab tsis haum. Pawg hydrocyclone tseem tuaj yeem siv los ua kom tiav qhov kev ntxhua khaub ncaws thiab kuaj cov kaolin hauv cov txheej txheem ntawm kev cais, uas tsis tsuas tuaj yeem ua tiav lub hom phiaj ntawm kev ntxuav thiab muab qib, tab sis kuj tshem tawm qee qhov impurities, uas muaj daim ntawv thov zoo.
Txawm li cas los xij, nws tsis yooj yim kom tau txais cov khoom lag luam kaolin tsim nyog los ntawm kev xa rov qab, thiab cov khoom tsim nyog kawg yuav tsum tau txais los ntawm kev sib nqus sib cais, tig, calcination thiab lwm txoj kev.

2. Sib nqus sib nqus
Yuav luag txhua tus kaolin ores muaj ib qho me me ntawm cov hlau ore, feem ntau 0.5-3%, feem ntau yog magnetite, ilmenite, siderite, pyrite thiab lwm yam xim tsis txaus. Sib nqus sib cais tsuas yog siv cov sib nqus sib txawv ntawm cov sib nqus gangue thiab kaolin tshem tawm cov xim tsis huv.
Rau cov khoom siv magnetite, ilmenite thiab lwm yam muaj zog sib nqus lossis cov hlau ntxig sib xyaw hauv cov txheej txheem ua, siv cov khoom sib nqus sib cais kom sib txawv cov kaolin zoo dua. Rau cov khoom siv hlau tsis muaj zog, muaj ob txoj kev tseem ceeb: ib qho yog ci, ua kom nws dhau los ua cov hlau nplaum muaj zog hlau oxide, tom qab ntawd nqa ntawm sib nqus sib cais; Lwm txoj kev yog siv cov khoom loj ntawm kev sib nqus cov sib nqus sib nqus sib cais cov txheej txheem rau kev sib nqus sib nqus. Vim tias kev sib nqus sib nqus tsis tas siv cov tshuaj lom neeg, cov ib puag ncig yuav tsis ua kom muaj kuab paug, yog li nyob rau hauv cov txheej txheem ntawm cov khoom siv hlau tsis sib xyaw yog siv ntau dua. Cov txheej txheem sib nqus sib xyaw tau zoo daws cov teeb meem ntawm kev siv thiab kev siv ntawm cov qib qis kaolin uas tsis yog kev lag luam tsuas muaj nqi vim cov ntsiab lus siab ntawm cov hlau.

Txawm li cas los xij, nws yog qhov nyuaj kom tau txais cov qib siab ntawm kaolin khoom los ntawm kev sib nqus sib cais ib leeg, thiab kev kho tshuaj thiab lwm yam txheej txheem yog xav tau los txo cov ntsiab lus ntawm cov hlau hauv cov khoom siv kaolin.

3. Lub kiv muag
Cov txheej txheem flotation feem ntau yog siv lub cev thiab tshuaj sib txawv ntawm kev sib cais gangue thiab kaolin los kho cov kab mob kaolin ore nrog ntau impurities thiab qis dua qhov txhav, thiab tshem tawm cov impurities muaj hlau, titanium thiab carbon, yog li kom paub qhov kev siv dav ntawm qib qis kaolin cov chaw muab kev pab.
Kaolin yog cov pob zeb hauv av ua haujlwm. Impurities xws li hlau thiab titanium yog feem ntau nyob rau hauv cov kab kolin, yog li cov khoom siv nyoos yuav tsum yog hauv av kom muaj qee yam ntawm kev ua kom zoo. Kaolinite feem ntau siv txoj kev hloov mus rau ultra zoo particle flotation txujci, ob chav dej txheej flotation thiab hom flocculation flotation xaiv, thiab lwm yam.

Kev ua cov nplauv tuaj yeem ua rau cov nplai dawb ntawm kaolin, thaum qhov tsis zoo yog tias nws xav tau tshuaj lom neeg thiab raug nqi ntau, yooj yim ua rau muaj kuab paug.

4. Kev siv tshuaj lom neeg
Tshuaj roj tso tawm: qee qhov impurities hauv kaolin tuaj yeem xaiv cov yaj los ntawm sulfuric acid, hydrochloric acid, nitric acid thiab lwm cov tshuaj laim tawm kom tshem tawm impurities. Txoj kev no tuaj yeem siv los tshem cov hematite, limonite thiab siderite los ntawm qis pob kaolin.

Tshuaj dawb: lub impurities hauv kaolin tuaj yeem raug oxidized rau hauv cov tshuaj lom neeg los ntawm cov tshuaj dawb, uas tuaj yeem ntxuav thiab tshem tawm txhawm rau txhim kho qhov dawb ntawm cov tshuaj kaolin. Txawm li cas los xij, tshuaj txau cov tshuaj lom neeg yog feem ntau kim thiab feem ntau yog siv hauv cov tshuaj kaolin concentrate, uas xav tau kev ntxuav ntxiv tom qab tshem cov paug.

Ci ci ua kom huv: qhov sib txawv hauv cov tshuaj lom neeg thiab cov tshuaj ua kom tsis muaj zog ntawm impurities thiab kaolin tuaj yeem siv rau kev sib nqus hlau ci, ci nqaij lossis ci ua kom cov roj los txhaws rau tshem cov impurities xws li hlau, carbon thiab sulfide hauv kaolin. Hom no tuaj yeem txhim kho cov tshuaj reactivity ntawm cov khoom lag luam calcined, zoo heev txhim kho lub ntsej muag dawb ntawm kaolin, thiab tau txais cov khoom lag luam muaj kolin ua siab. Tab sis qhov tsis zoo ntawm qhov ua kom huv huv yog tias lub zog siv ntau, yooj yim ua rau muaj kuab paug rau ib puag ncig.

Los ntawm ib qho thev naus laus zis yog qhov nyuaj kom tau txais qib siab ntawm kaolin concentrates. Yog li ntawd, hauv kev tsim khoom tiag tiag, peb xav kom koj xaiv cov khoom lag luam tsim cov khoom siv ntxhia ua kom zoo. Nqa cov ntxhia ua kev sim thiab siv ntau cov txuj ci thev naus laus zis los ua kom zoo dua ntawm Kaolin.


Lub sij hawm tshaj tawm: Plaub Hlis-06-2020