Cov ntsiab lus ntawm kev siv polyacrylamide rau hauv kev lag luam ntawv

Daim ntawv thov ntawm Polyelectrolyte hauv Kev pov tseg hauv nroog pov tseg

Polyacrylamide tam sim no siv dav hauv ntawv mills los tsim cov khoom siv lub zog qhuav, thiab lwm yam Tsis ntev los no, ntau tus phooj ywg tau tshaj tawm tias polyacrylamide muaj teeb meem ntau thaum nws tau yaj, thiab nws yooj yim rau agglomerate yog tias cov neeg ua haujlwm tsis paub txheej txheem sib xyaw lossis tsis muaj kev lav phib xaub.

1. Lub sijhawm nplawm thiab lub sijhawm ntawm polyacrylamide tsis yooj yim rau lub sijhawm ntev dhau. Txawm hais tias polyacrylamide tau yooj yim soluble hauv dej, thaum nws lub siab yaj tau nce mus txog ntau dua 10%, nws yuav tsim lub pob tshab dej rau hauv dej thiab poob nws qhov kev npliag. Yog tias ntau ntau ntawm cov tshuaj polyacrylamide ntxiv sai sai thaum lub sijhawm kev daws teeb meem, txheej txheem kev tshem tawm nrog qhov siab tshaj 10% yuav tsim nyob rau hauv qee qhov chaw ntawm dej, ua rau txoj kev tshem tawm nyuaj rau kev ua mus ntxiv. Yog li, nws yog qhov yuav tsum tau ntxiv qee qhov tseeb ntawm cov dej huv kom txog thaum lub ntsej muag txau kom ploj, tom qab ntawd pib lub zog hloov mus rau cov kua aqueous ua ntej ntxiv polyacrylamide. Nws yog qhov yuav tsum tau hais tias lub ntsej muag nplawm yuav tsum tsis txhob muaj cov ces kaum lossis txha hniav, txwv tsis pub nws yuav ua rau dai thiab txiav. Cov txiaj ntsig tsis haum ntawm acrylamide molecular saw ua rau cov kev kub ntxhov siab tsis muaj tseeb thiab tsis muaj zog nws cov nyhuv dispersion. Cov kev sib xyaw ua ke ntawm cov polyacrylamide tsis yooj yim rau qhov siab dhau, feem ntau ntawm 0.5-1 ib txhiab. Lub sijhawm nplawm thiab lub sijhawm ntawm polyacrylamide tsis yooj yim rau ntev dhau, thiab lub sijhawm nplawm dav dav yog li 1-1. 5 teev, txwv tsis pub nws cov dispersion nyhuv yuav raug rhuav tshem.

2. Polyacrylamide yuav tsum siv thiab yaj tam sim no, vim tias cov tshuaj aqueous ntawm polyacrylamide yuav cia li yaj sai li 20-48 teev, poob nws cov viscosity, thiab thaum kawg poob nws cov dispersion.

3. Thaum polyacrylamide yog yaj, nws tsis yooj yim sua kom yaj tag 100%. Yuav tsum muaj ib feem me me ntawm cov gel loj uas tsis tau yaj tag. Yog li, cov khoom siv lim yuav tsum tau ntxiv thaum thov kom tiv thaiv cov gel loj ntawm kev nkag mus ntawm lub tshuab ntawv, dai lub vas thiab nplaum xav lossis tsim cov ntawv tsis xws luag.

4. Thaum lub tshuab ntawv pib hlua cov dej, nws yog ib qho tsim nyog yuav tsum tau ntxiv polyacrylamide ua ntej, yog li muaj polyacrylamide nyob rau hauv lub kaw lus kom tiv thaiv cov undispersed ntev fiber ntau los ntawm agglomerating, kom cov ntau lawm tuaj yeem mus txog lub xeev ib txwm sai. Vim tias polyacrylamide tsis tuaj yeem muab ntau dhau rau hauv ib zaug, nws yuav tsum raug ntxiv kom zoo ib yam, zoo tib yam, thiab dispersedly. Thiab qhov ceev ntawm qhov sib ntxiv yuav tsum tsis txhob nrawm dhau, feem ntau ntawm 0.15 kg / min. Thaum cov polyacrylamide ntxiv rau hauv dej, dej huv nrog lub zog siab yuav tsum tau txhaj rau hauv nws qhov txuas ntxiv, kom nws yuav tsum tau yaj thiab yaj tam sim ntawd tom qab ntxiv rau hauv dej kom ua tiav txoj kev daws teeb meem zoo.

5. Thaum tus nqi ntawm polyacrylamide ntxiv pauv hloov, lub cev qhuav dej ntawm lub plhaw ntawm lub tshuab ntawv yuav hloov raws. Yog tias qhov ntau ntawm cov tshuaj polyacrylamide ntxiv tau hloov kho ntau dhau lawm, lub cev qhuav dej yuav tshwm sim sai lossis qeeb dhau, uas yuav cuam tshuam rau ib txwm thiab ruaj khov. Yog li no, thaum lub sij hawm tsim tawm ntawm cov ntawv siv tshuab, tsis txhob kho tus nqi ntawm polyacrylamide feem ntau. Cov nyiam ion hom ntawm polyacrylamide siv nyob rau hauv ntev fiber dispersant yog anionic lossis tsis-ionic.


Sijhawm Tshaj Tawm: Plaub Hlis-25-2021
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