Kaolin, tshwj xeeb tshaj yog ultra-fine calcined kaolin, ua ib qho tseem ceeb heev inorganic non-metallic khoom, yeej ib txwm ua lub luag haujlwm tseem ceeb hauv kev lag luam ntawv nrog nws cov khoom zoo heev. Calcined kaolin siv hauv kev lag luam ntawv yog ib qho porous thiab siab dawb cov qauv ua haujlwm cov khoom siv, uas feem ntau yog siv los hloov cov titanium dioxide kim thiab lwm yam pigments qib siab. Raws li lub chaw tsim khoom ntawm cov khoom sib tsoo, lubkaolin uas tau hlawvultra-fine ntsuglub menyuamlub zeb tsim los ntawm HCMilling (Guilin Hongcheng) tau siv dav thiab lees paub hauv kev tsim cov kaolin calcined. Cov hauv qab no yog kev qhia txog txoj kev tsim cov kaolin calcined:

Cov kev cai zoo ntawm kev lag luam ntawv rau calcined kaolin feem ntau qhia nyob rau hauv qhov yuav tsum tau rau qhov loj me ntawm cov khoom me me, qhov dawb, lub zog zais, kev nqus roj, viscosity concentration, pH tus nqi, hnav tus nqi thiab lwm yam qhia ntawm calcined kaolin. Nyob rau hauv qhov xwm txheej uas kev ua lag luam ntawm cov kaolin ntxuav ib txwm tau poob qis txhua xyoo vim muaj kev cuam tshuam ntawm cov calcium carbonate hnyav, kev muag khoom hauv khw tau nce siab, uas ua rau ntau tus neeg tsim khoom ua raws li. Txij li xyoo 1980, ntau cov thee series kaolin tau pom (nws tau hais tias cov khoom cia siab tshaj 10 billion tons). Vim nws zoo thiab ob peb yam tsis zoo, thee series kaolin tau dhau los ua cov khoom siv raw zoo tshaj plaws rau kev tsim cov ntawv txheej qib calcined kaolin. Kev ua lag luam ntawm calcined kaolin tsim los ntawm thee series kaolin yog dav.

Cov txheej txheem tsim cov calcined kaolin feem ntau suav nrog ob ntu: crushing superfine txheej txheem thiab calcining whitening txheej txheem.

1. Kev sib tsoo superfine txheej txheem ntawm calcined kaolin ntau lawm txoj kev: kev sib tsoo superfine txheej txheem yog ib qho tseem ceeb txuas los txiav txim siab qhov zoo ntawm kaolin. Kev sib tsoo ntawm cov thee series kaolin superfine yog kaolin tawv (los ntawm 5 ~ 20mm txog 40 ~ 80 μ m) Ultrafine (los ntawm 40 txog 80 μ M txog - 10 μ M lossis - 2 μ m).kaolin uas tau hlawvLub tshuab zeb Raymond thiab lub tshuab zeb calcined kaolin ntsug uas tsim los ntawm HCMilling (Guilin Hongcheng) yog cov khoom siv sib tsoo loj, uas tuaj yeem siv rau kev sib tsoo loj ua ntej ntawm txoj kev tsim cov kaolin calcined, thiab tuaj yeem ua tiav 80-600 mesh thee series kaolin;HLMX series calcined kaolin ultra-fine ntsuglub menyuamlub zeb, lub nplhaib sib tsoo thiab lwm yam khoom siv sib tsoo zoo heev yog qhov tsim nyog rau kev sib tsoo zoo heev hauv txoj kev tsim cov kaolin calcined, uas tuaj yeem ua tiav 3-45 μ M superfine kaolin hmoov yog qhov zoo tagnrho calcined kaolin superfine hmoov zeb.

2. Cov txheej txheem calcination thiab whitening ntawm calcined kaolin ntau lawm: Vim yog cov yam ntxwv diagenetic ntawm cov thee series kaolin, uas yog, nws muaj qee cov organic teeb meem, yog li nws cov raw ore whiteness tsuas yog 6 ~ 40%, uas tsis tau raws li qhov yuav tsum tau ua ntawm kev lag luam ntawv rau coated kaolin, yog li calcination decarburization thiab whitening txheej txheem yuav tsum tau txais. Raws li cov kev cai sib txawv rau qhov zoo ntawm kaolin, nws kuj tuaj yeem faib ua ob yam khoom: nruab nrab kub calcined kaolin thiab kub siab calcined kaolin.

Kev sib piv cov txheej txheem ntawm cov txheej txheem tsim cov kaolin calcined: raws li seb cov txheej txheem superfine yog cov txheej txheem ntub lossis cov txheej txheem qhuav thiab cov txheej txheem ntawm cov txheej txheem superfine thiab cov txheej txheem calcination, plaub cov txheej txheem ntau lawm tuaj yeem ua ke, uas yog

(1) cov txheej txheem ntub dej superfine ua raws li cov txheej txheem calcination (2) cov txheej txheem qhuav superfine ua raws li cov txheej txheem calcination (3) calcination ua raws li cov txheej txheem ntub dej superfine (4) calcination ua raws li cov txheej txheem qhuav superfine. Vim tias tib neeg muaj kev nkag siab sib txawv ntawm cov ntaub ntawv ultra-fine, cov txheej txheem siv hauv cov lag luam sib txawv yog txawv:

(1) Cov txheej txheem calcination ntub dej superfine ntev heev, tab sis nws muaj kev hloov pauv zoo rau cov khoom siv raw, thiab cov khoom zoo tuaj yeem ua tau raws li qhov xav tau ntawm kev lag luam ntawv;

(2) Cov txheej txheem calcination thiab rewetting superfine feem ntau xav tau cov khoom siv ziab tshwj xeeb thiab cov khoom siv dispersion. Cov txheej txheem no muaj kev hloov pauv tsis zoo rau cov khoom siv raw, tab sis tuaj yeem tsim cov khoom lag luam uas kev lag luam ntawv xav tau;

(3) Cov txheej txheem calcination superfine qhuav thiab thawj calcination thiab tom qab ntawd cov txheej txheem qhuav superfine tsis tuaj yeem tsim kaolin rau kev lag luam ntawv (vim yog qhov laj thawj ntawm cov khoom siv superfine), uas xav tau cov khoom siv raw zoo.

Zuag qhia tag nrho, cov txheej txheem ntawm cov khoom siv qhuav ua ntej calcination muaj kev siv tau zoo, thiab daim duab qhia txog cov txheej txheem yog: cov hlau nyoos → crushing → crushing → qhuav superfine → calcination → khoom. Qhov zoo ntawm cov txheej txheem no yog: (1) cov txheej txheem luv luv, thiab tag nrho cov txheej txheem tsuas yog xav tau peb mus rau plaub lub cuab yeej tseem ceeb. Yog tias HongchengHLMX calcined kaolin ultrafine hmoov zeb Yog xaiv, tsuas yog peb yam khoom siv xwb, uas yog, lub tshuab zom, lub tshuab zom hmoov calcined kaolin ultrafine, lub tshuab calciner, uas yooj yim rau kev tswj hwm tag nrho thiab kev teem sijhawm tsim nyog; (2) Kev siv zog yog qhov tsim nyog. Hauv cov txheej txheem no, cov txheej txheem superfine ntawm cov ntaub ntawv raug muab tso ua ntej cov txheej txheem calcination kom tsis txhob muaj teeb meem ntawm kev siv zog ntau dua vim yog kev zom thiab hlawv cov ntaub ntawv. Yog tias cov txheej txheem calcination hmoov raug saws, nws tuaj yeem suav tias yog cov txheej txheem tsim khoom qhuav tag nrho. Raws li kev siv tshuab, kev siv zog yog qhov tsim nyog dua.

Siv cov thee series kaolin los tsim cov txheej txheem calcined kaolin rau kev lag luam ntawv yog qhov tsis muaj qhov tsis ntseeg ib txoj hauv kev zoo los siv cov thee gangue. Nws yuav tsum tau sau tseg tias cov txheej txheem tsim nyog yuav tsum tau xaiv raws li cov peev txheej hauv zos thiab peev. Yog tias koj xav paub ntau ntxiv txog cov txheej txheem tsim khoom thiab kev xaiv cov khoom siv ntawm calcined kaolin, thov hu rau peb kom paub meej ntxiv.