Kev siv cov mortar ua cov khoom siv rwb thaiv tsev hauv kev tsim kho tuaj yeem txhim kho kev ua haujlwm ntawm cov phab ntsa sab nraud, txo cov cua sov hauv tsev, thiab tsis txhob muaj cua sov tsis sib xws ntawm cov neeg siv, yog li nws tau siv dav hauv kev tsim vaj tsev.Tsis tas li ntawd, tus nqi ntawm cov khoom siv no kuj tsis tshua muaj, uas txuag cov nqi ntawm qhov project, thiab muaj cov rwb thaiv tsev kub thiab noo noo.
A. Raw khoom xaiv thiab muaj nuj nqi
1. Vitrified microbead sib sau ua ke
Cov khoom tseem ceeb tshaj plaws nyob rau hauv mortar yog vitrified microbeads, uas feem ntau siv thermal rwb thaiv tsev cov ntaub ntawv nyob rau hauv niaj hnub tsim tsev thiab muaj zoo thermal rwb thaiv tsev zog.Nws yog tsim los ntawm cov khoom siv iav acidic los ntawm kev ua haujlwm siab.
Los ntawm qhov chaw ntawm lub mortar, particle tis ntawm cov khoom yog tsis tshua muaj tsis xwm yeem, zoo li kab noj hniav nrog ntau qhov.Txawm li cas los xij, thaum lub sij hawm tsim kho, qhov kev ntxhib los mos ntawm cov khoom no yog qhov tseeb heev, thiab nws muaj lub foob zoo rau ntawm phab ntsa.Cov khoom siv yog lub teeb heev, muaj cov rwb thaiv tsev zoo, thiab muaj cov yam ntxwv ntawm qhov kub thiab txias tsis kam thiab hnav tsis kam.
Feem ntau hais lus, thermal conductivity ntawm vitrified microbeads yog ib qho tseem ceeb, tshwj xeeb tshaj yog cov thermal conductivity ntawm qhov chaw yog qhov muaj zog tshaj plaws, thiab cov cua kub kuj yog siab heev.Yog li ntawd, thaum siv vitrified microbeads, cov neeg ua haujlwm tsim kho yuav tsum tswj qhov kev ncua deb thiab thaj tsam ntawm txhua qhov kom paub txog cov thermal rwb thaiv tsev thiab thermal rwb thaiv tsev ua haujlwm ntawm cov khoom siv thermal rwb thaiv tsev.
B. Tshuaj plaster
Tshuaj gypsum yog lwm qhov tseem ceeb ntawm cov tshuaj khib.Nws tuaj yeem raug hu ua kev lag luam rov qab gypsum.Nws yog tsuas yog tsim los ntawm calcium sulfate pov tseg, yog li nws cov khoom siv tau yooj yim heev, thiab nws tuaj yeem paub txog kev siv cov peev txheej zoo thiab txuag lub zog.
Nrog rau txoj kev loj hlob ntawm kev lag luam, ntau lub tuam txhab tso tawm qee qhov kev lag luam pov tseg thiab cov pa phem txhua hnub, xws li desulfurized gypsum xws li phosphogypsum.Thaum cov khib nyiab no nkag mus rau hauv qhov chaw, lawv yuav ua rau huab cua muaj kuab paug thiab cuam tshuam rau tib neeg kev noj qab haus huv.Yog li ntawd, tshuaj gypsum tuaj yeem hais tau tias yog lub zog tauj dua tshiab, thiab nws kuj paub txog kev siv pov tseg.
Raws li ntau yam kev ua qias tuaj, phosphogypsum yog ib yam khoom muaj kuab paug heev.Yog tias lub Hoobkas tsis tso tawm phosphogypsum ib zaug, nws yuav ua rau muaj kuab paug loj rau ib puag ncig ib puag ncig.Txawm li cas los xij, cov khoom no tuaj yeem dhau los ua qhov tseem ceeb ntawm cov tshuaj gypsum.Element.Los ntawm kev tshuaj ntsuam thiab lub cev qhuav dej ntawm phosphogypsum, cov kws tshawb fawb tau ua tiav cov txheej txheem ntawm kev hloov cov khoom pov tseg rau hauv cov khoom muaj nqis thiab tsim cov tshuaj gypsum.
Desulfurization gypsum tseem tuaj yeem hu ua flue gas desulfurization gypsum, uas yog cov khoom lag luam tsim los ntawm desulfurization thiab kev kho kom huv, thiab nws cov muaj pes tsawg leeg yog tib yam li ntawm ntuj gypsum.Cov dej dawb cov ntsiab lus ntawm desulfurized gypsum feem ntau kuj siab, uas yog ntau dua li ntawm ntuj gypsum, thiab nws cohesiveness kuj muaj zog.Ntau yam teeb meem kuj tshwm sim thaum lub sij hawm tag nrho cov txheej txheem ntau lawm.Yog li ntawd, cov txheej txheem tsim khoom ntawm lub tsev gypsum tsis tuaj yeem zoo ib yam li ntuj gypsum.Nws yog ib qho tsim nyog yuav tau txais cov txheej txheem ziab tshwj xeeb kom txo nws cov dej noo.Nws yog tsim los ntawm kev tshuaj xyuas nws thiab calcining ntawm ib qho kub.Tsuas yog nyob rau hauv txoj kev no nws tuaj yeem ua tau raws li cov qauv ntawv pov thawj hauv tebchaws thiab ua tau raws li qhov yuav tsum tau ua ntawm thermal rwb thaiv tsev tsim.
C. Kev sib xyaw
Kev npaj cov tshuaj gypsum rwb thaiv tsev mortar yuav tsum siv lub tsev tshuaj gypsum ua cov khoom tseem ceeb.Vitrified microbeads feem ntau yog ua los ntawm kev sib xyaw ua ke.Cov kws tshawb fawb tau hloov nws cov khoom los ntawm kev sib xyaw kom tau raws li cov kev xav tau ntawm kev tsim kho.
Thaum npaj cov thermal rwb thaiv tsev mortar, cov neeg ua haujlwm tsim kho yuav tsum tau ua tib zoo saib xyuas cov yam ntxwv ntawm kev tsim kho tshuaj gypsum, xws li viscosity thiab dej ntim loj, thiab xaiv cov khoom siv sib xyaw ua ke thiab kev xav.
1. Composite retarder
Raws li kev tsim kho ntawm cov khoom siv gypsum, lub sijhawm ua haujlwm yog qhov tseem ceeb ntawm nws qhov kev ua tau zoo, thiab qhov kev ntsuas tseem ceeb los ua kom lub sijhawm ua haujlwm ntev yog ntxiv retarder.Feem ntau siv gypsum retarders muaj xws li alkaline phosphate, citrate, tartrate, thiab lwm yam. Txawm hais tias cov retarders no muaj cov nyhuv zoo, lawv tseem yuav cuam tshuam rau tom qab lub zog ntawm cov khoom gypsum.Lub retarder siv nyob rau hauv cov tshuaj gypsum thermal rwb thaiv tsev mortar yog ib tug puas retarder, uas yuav ua tau zoo txo cov solubility ntawm hemihydrate gypsum, qeeb ceev ntawm crystallization germ tsim, thiab qeeb cov txheej txheem crystallization.Cov nyhuv retarding yog pom tseeb yam tsis poob lub zog.
2. Cov dej tuav cov tuab tuab
Txhawm rau txhim kho kev ua haujlwm ntawm mortar, txhim kho dej tuav, fluidity thiab sag kuj, nws yog ib qho tsim nyog yuav tau ntxiv cellulose ether.Kev siv methyl hydroxyethyl cellulose ether tuaj yeem ua tau zoo dua lub luag haujlwm ntawm cov dej tuav thiab thickening, tshwj xeeb tshaj yog nyob rau hauv lub caij ntuj sov tsim.
3. Redispersible latex hmoov
Txhawm rau txhim kho cov cohesion, yooj thiab adhesion ntawm mortar rau lub substrate, redispersible latex hmoov yuav tsum tau siv raws li ib tug admixture.Redispersible latex hmoov yog cov hmoov thermoplastic resin tau los ntawm kev ziab kom qhuav thiab ua haujlwm tom qab ntawm siab molecular polymer emulsion.Lub polymer nyob rau hauv lub mortar sib tov yog ib tug tas mus li theem, uas yuav zoo inhibit los yog ncua lub tiam thiab kev loj hlob ntawm cov kab nrib pleb.Feem ntau, kev sib txuas lub zog ntawm mortar yog ua tiav los ntawm lub hauv paus ntsiab lus ntawm kev siv tshuab occlusion, uas yog, nws yog maj mam solidified nyob rau hauv qhov khoob ntawm lub hauv paus khoom;Kev sib txuas ntawm cov polymers ntau dua nyob ntawm qhov adsorption thiab diffusion ntawm macromolecules ntawm qhov chaw sib txuas, thiab cov methyl Hydroxyethyl cellulose ether ua haujlwm ua ke kom nkag mus rau hauv cov txheej txheem ntawm lub hauv paus, ua rau cov khoom siv hauv paus thiab qhov chaw ntawm lub mortar. kaw hauv kev ua tau zoo, yog li txhim kho cov adsorption ntawm lawv thiab txhim kho kev sib raug zoo.
4. Lignin fiber ntau
Lignocellulosic fibers yog cov khoom siv ntuj tsim uas nqus dej tab sis tsis yaj hauv nws.Nws muaj nuj nqi nyob rau hauv nws tus kheej yooj yooj yim thiab peb-dimensional network qauv tsim tom qab sib tov nrog lwm yam ntaub ntawv, uas yuav ua tau zoo tsis muaj zog lub qhuav shrinkage ntawm lub mortar thaum lub sij hawm ziab txheej txheem ntawm mortar, yog li txhim kho qhov tawg tsis kam ntawm mortar.Tsis tas li ntawd, qhov chaw peb-dimensional qauv tuaj yeem kaw dej 2-6 npaug ntawm nws qhov hnyav hauv nruab nrab, uas muaj qee yam dej tuav;Nyob rau tib lub sijhawm, nws muaj cov thixotropy zoo, thiab cov qauv yuav hloov thaum lwm lub zog siv (xws li scraping thiab nplawm).Thiab npaj raws li kev taw qhia ntawm kev txav mus los, cov dej tso tawm, viscosity txo qis, kev ua haujlwm tau zoo dua qub, thiab kev tsim kho tuaj yeem txhim kho.Kev ntsuam xyuas tau pom tias luv thiab nruab nrab ntev ntawm lignin fibers yog haum.
5. Filler
Kev siv cov calcium carbonate hnyav (hnyav calcium) tuaj yeem hloov qhov kev ua haujlwm ntawm mortar thiab txo tus nqi.
6. Kev npaj piv txwv
Kev tsim kho tshuaj gypsum: 80% mus rau 86%;
Composite retarder: 0.2% mus rau 5%;
methyl hydroxyethyl cellulose ether: 0.2% txog 0.5%;
Redispersible latex hmoov: 2% mus rau 6%;
Lignin fiber ntau: 0.3% - 0.5%;
Calcium hnyav: 11% mus rau 13.6%;
Qhov sib tov ntawm mortar yog roj hmab: vitrified hlaws = 2: 1 ~ 1.1.
7. Kev tsim kho txheej txheem
1) Ntxuav lub hauv paus phab ntsa.
2) Moisten phab ntsa.
3) Dai lub ntsug, square, thiab elastic plaster thickness tswj kab.
4) Siv tus neeg saib xyuas interface.
5) Ua cov ncuav mog qab zib grey thiab tus qauv tendons.
6) Siv tshuaj gypsum vitrified hlaws rwb thaiv tsev mortar.
7) Kev lees txais cov txheej txheem sov.
8) Siv gypsum anti-cracking mortar, thiab nias rau hauv alkali-resistant iav fiber mesh daim ntaub tib lub sijhawm.
9) Tom qab txais, plaster txheej txheej nrog plaster.
10) Sib tsoo thiab calendering.
11) Txais.
8. Cov lus xaus
Piv txwv li, thermal rwb thaiv tsev mortar yog ib qho tseem ceeb ntawm thermal rwb thaiv tsev cov ntaub ntawv hauv kev tsim kho engineering.Nws muaj cov khoom siv hluav taws xob zoo thiab thermal rwb thaiv tsev, uas tuaj yeem txo cov nqi nkag ntawm kev tsim kho engineering thiab paub txog kev txuag hluav taws xob thiab kev tiv thaiv ib puag ncig hauv kev tsim kho engineering.
Nrog rau kev txhim kho txuas ntxiv ntawm zej zog, nyob rau yav tom ntej, cov kws tshawb fawb hauv peb lub teb chaws yuav txhim kho zoo dua thiab ntau dua ib puag ncig cov ntaub ntawv rwb thaiv tsev.
Post lub sij hawm: Mar-24-2023