Rau cov ntawv coated, ntawv tuab thiab qib siab xim txheej xim, plastics thiab roj hmab, kaolin particle loj thiab nws cov khoom faib tawm yog qhov ntsuas tseem ceeb.
Qee qhov khoom zoo ntawm kaolin, tshwj xeeb tshaj yog nyuaj kaolin lossis Kaolin, tseem yuav xav tau pulverized.
Daim duab
Raws li qhov yuav tsum tau ua ntawm cov khoom kawg thiab txoj kev sib tsoo zoo, txoj kev sib tsoo ntawm kaolin tuaj yeem muab faib ua ob yam: hom qhuav thiab hom txheej txheem ntub.
1. Kaolin qhuav sib tsoo
Cov txheej txheem qhuav feem ntau yog siv rau kev sib tsoo nyuaj kaolinite lossis kaolinite, tshwj xeeb tshaj yog rau kev ua cov kaolinite ncaj qha rau hauv ultrafine hmoov kom tau raws li cov cai ntawm cov neeg siv.
Tam sim no, cov khoom lag luam zoo kawg nkaus uas tuaj yeem ua tiav los ntawm cov qauv qhuav hauv tsev feem ntau yog D90≤10 m, uas yog, cov khoom kawg yog kwv yees 1250 mesh.
Cov cuab yeej siv ua khoom siv feem ntau siv cov huab cua khiav pulverizer, cua daj cua dub tus kheej kev sib tsoo, kev kub ceev txhua yam kev cuam tshuam hom superfine pulverizer, lub vibration kev sib tsoo thiab lwm yam.
Txhawm rau tswj hwm cov khoom loj particle faib, tshwj xeeb tshaj yog cov ntsiab lus siab kawg, nws yog feem ntau tsim nyog los ua kom zoo cov khoom siv kev faib tawm. Tam sim no, turbine type air centrifugal classifier feem ntau tau teeb tsa, xws li LHB hom, ATP hom, MS hom thiab MSS hom qhuav centrifugal classifier.
2. Kaolin ntub dej sib tsoo
Kaolin ntub milling yog feem ntau siv rau ultra-zoo sib tsoo ntawm mos thiab arenaceous kaolin tom qab xuab zeb tshem tawm thiab impurity tshem tawm, tshwj xeeb tshaj yog rau D80≤2 m lossis D90≤2 m txheej kaolin khoom, uas tseem yog kev lag luam nyuaj kaolin lossis kaolin ua D80≤ 2 m lossis D90≤2 m txheej kaolin cov khoom lag luam yuav tsum tau siv cov txheej txheem sib tsoo.
Vim tias flaky siv lead ua hom ntawm kaolin yog cov cuab yeej zoo heev rau nws cov ntawv thov hauv qee cov teb, ntub dej ultra-nplua pulverization ntawm kaolin kuj tseem paub zoo li stripping, uas txhais tau tias cov thicker lamellar kaolin tau tawg ua rau cov nplaim nyias me me, thiaj li tswj nws cov thawj cov yam ntxwv.
Cov txheej txheem stripping suav nrog ntub kev sib tsoo, extrusion, tshuaj soaking thiab cov txheej txheem sib koom tes.
(1) Txoj kev sib tsoo
Nrog kev pab ntawm tus kwv tij txav ntawm kev sib tsoo nruab nrab, cov kaolin hais yog raug rau shearing, impingement thiab sib tsoo stripping, uas ua rau lawv tev mus ua nyias thiab flaky nplua hais raws interlayer.
Cov cuab yeej siv dav dav yog kev sib tsoo thiab tshuab tev, tov pob zeb, zeb xuab zeb, thiab lwm yam.
Kev sib tsoo xov xwm siv feem ntau iav hlaws dai, alumina hlaws, corundum hlaws, zirconia hlaws, ntuj quartz xuab zeb, qhov loj me 0.8m-3mm.
Qhov me me qhov loj me ntawm qhov sib tsoo nruab nrab yog, cov khoom ua tiav zoo dua yuav. Txawm li cas los xij, kev saib xyuas kuj yuav tsum tau them rau cov kev sib raug zoo ntawm txoj kab uas hla ntawm lub pob nruab nrab thiab cov taub ntawm cov khoom siv kom ua av. Qhov txoj kab uas hla ntawm kev sib tsoo nruab nrab yuav tsum muaj ntau tshaj 10 npaug ntawm qhov loj me hauv nruab nrab ntawm cov khoom pub.
(2) Extrusion
Lub hauv paus ntsiab lus ua haujlwm yog cov kaolin slurry nyob rau hauv homogenizer chim yog cov pa mus rau 20-60mpa los ntawm lub twj tso kua mis piston, thiab lub tshuab nqus siab siab yog extrudated thiab tshem tawm los ntawm lub nozzle ntawm homogenizer (nplaim zog los ntawm qhov sib txawv nqaim heev) ntawm ib qho tawm ntawm ntau dua 950m / s.
Vim lub nrawm thiab ntse poob qis hauv lub siab, kaolin Crystal lamination nyob rau hauv lub slurry ua" xoob" muaj zog cavitation nyhuv.
Cov kua roj yaj yaj xoob tau ua tiav dhau ntawm txheej txheej interlaminar los ntawm cavitation yaig.
(3) Cov tshuaj ntxuav tes kom huv
Kaolin tau tsau los ntawm cov tshuaj tov rau tus neeg saib xyuas cov tshuaj. Thaum tus neeg sawv cev tau raus hauv cov txheej txheem siv lead ua uas tau sib cog los ntawm hydrogen daim ntawv cog lus, qhov kev sib khi ntawm cov dav hlau siv zog ua kom tsis muaj zog, thiab cov txheej txheej siv lead ua tau xoob. Nyob rau lub sijhawm no, lub zog me me sab nraud tau thov rau tev tawm ntawm cov khaubncaws sab nraud povtseg.
Kev siv tshuaj rau hauv lub cev tshuaj siv hauv chaw ua tshuaj urea, benzidine, amine acetate, thiab lwm yam.
Qhov no yog qhov muaj kev pom zoo tshaj plaws thiab cov qauv zoo los npaj nanometer kaolin.
(4) Kev sib tsoo sib luag
Cov qauv ntawm kev sib tsoo sib tsoo thiab rho tawm tuaj yeem ua tiav cov txiaj ntsig tev tawm hauv lub sijhawm luv luv, thiab thev naus laus zis tuaj yeem siv rau ultra-nplua kaolin hauv kev lag luam.
Tsis tas li ntawd, kev tshawb nrhiav cov tsom iav hluav taws xob tsom tsom pom pom tias kev sib tsoo sib xyaw ua rau puas tsuaj me me rau cov qauv siv lead ua ntawm kaolinite, thiab ntau lub lamellar hais tseem tshwm sim ua tiav hexagonal flaky muaju tom qab sib tsoo.
Tuam Tshoj' s kaolin ore reserves yog nplua nuj, zoo, tab sis cov khoom lag luam zoo muaj tsawg heev, tseem yuav tsum tau import ntau cov zoo kaolin los ntawm txawv teb chaws txhua xyoo.
Nrog rau qhov kev thov nce zuj zus rau cov khoom zoo ntawm kaolin hauv Suav teb, nws yog ib qho tseem ceeb txhawm rau txhim kho qhov zoo ntawm cov khoom ua hauv tsev kaolin thiab ua kom nrawm nrawm txhim kho cov tshuab ua haujlwm zoo ntawm kaolin. Ultra-nplua pulverizing ntawm kaolin yuav dhau los ua ib qho ntawm cov lus qhia tseem ceeb ntawm kev tshawb fawb thiab siv rau yav tom ntej.
PUDA Kaolin packing tshuab:
Tom qab kev txheeb xyuas qhov tshwj xeeb ntawm qhov ceev, huab cua cov ntsiab lus, dej cov ntsiab lus, PUDA yuav pom zoo kom lub hau ntsaws noj hom tshuab rau kaolin, peb muaj lub hnab valve thiab qhib lub hnab ntim tshuab.
