Hauv kev tsim cov fiber viscose, kev tswj hwm qhov siab ntawm lub digester yog qhov tseem ceeb rau txhua theem ntawm cov txheej txheem, txij li cov txheej txheem ua noj cellulose mus txog rau kev kho alkaline cellulose. Kev ntsuas siab inline tiag tiag ua kom cov khoom zoo sib xws thiab txhim kho kev nyab xeeb ua haujlwm los ntawm kev cuam tshuam ncaj qha rau kev ua haujlwm ntawm cov digesters.
Thaum lub sijhawm cellulose alkalization thiab NaOH cov kua concentration rau viscose, cov khoom siv no muab cov ntaub ntawv tsis tu ncua. Kev siab dhau lossis tsis txaus tuaj yeem hloov pauv NaOH concentration, ua rau cov pob zeb crystalline uas thaiv cov kab digester thiab nres ntau lawm. Los ntawm kev xa cov ntawv nyeem siab tam sim ntawd, Lonnmeter inline pressure transmitters pab cov neeg ua haujlwm pom qhov sib txawv thaum ntxov, txo cov sijhawm tsis ua haujlwm kim thiab txhawb nqa kev tswj hwm lub zog digester uas tiv thaiv cov khoom siv ntev.
Cov Tshuaj Fiber Cog
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Kev Txheeb Xyuas Txog Kev Tsim Khoom Siv Viscose Fiber: Cov Txheej Txheem thiab Cov Ntsiab Lus Tswj
Cov txheej txheem tsim cov fiber viscose muaj ntau kauj ruam sib law liag, pib los ntawm cov txheej txheem ua noj cellulose. Thaum pib, cellulose pulp - feem ntau tau los ntawm ntoo lossis paj rwb linter - yog steeped hauv cov kua sodium hydroxide. Theem no, hu ua alkaline cellulose kev kho mob, yog qhov twg cellulose reacts nrog NaOH los tsim alkali cellulose. Lubqhov concentration ntawm NaOHKev daws teeb meem rau kev tsim cov viscose yog qhov tseem ceeb; cov koob tshuaj tsis raug ua rau muaj kev hloov pauv hauv kev ua haujlwm thiab cuam tshuam rau lub zog fiber sib xws. Yog tias qhov concentration ntawm sodium hydroxide txawv ntawm qhov xav tau, cellulose alkalization yuav tsis sib xws, ua rau cov fibers nrog cov khoom sib txawv.
Tom qab alkalization, cov txheej txheem txav mus rau kev ntxuav - tshem tawm cov alkali ntau dhau - thiab tom qab ntawd xanthation, qhov twg alkali cellulose reacts nrog carbon disulfide los ua cellulose xanthate. Cov khoom nruab nrab no yog yaj hauv dilute sodium hydroxide, tsim cov viscose dope, cov kua spinning uas yuav tsum ua tau raws li cov lus qhia zoo. Thaum lub sijhawm cov kauj ruam tsim cov fiber viscose no, kev tswj hwm lub siab digester yog qhov tseem ceeb. Kev siab tas li ua rau cov tshuaj tiv thaiv tshuaj ruaj khov thiab tswj kev nyab xeeb ntawm cov txheej txheem. Kev tswj hwm cov pa dej ua lub luag haujlwm tseem ceeb - kev xa cov pa dej tsis txaus ua rau cov tshuaj tiv thaiv qeeb thaum cov pa dej ntau dhau tuaj yeem rhuav tshem cov foob, ua rau cov fiber tsis sib xws, thiab ua rau cov nqi khiav lag luam nce siab.
Kev saib xyuas qhov sib xws ntawm cov tshuaj tsis yog tsuas yog tswj hwm NaOH concentration rau viscose xwb, tab sis kuj daws cov teeb meem crystallization thiab blockage uas feem ntau tshwm sim hauv kev tsim cov fiber. Crystallization tuaj yeem tshwm sim yog tias qhov kub, concentration, lossis cov nqi ntws tsis zoo, thaiv cov kav dej lossis digester sab hauv. Kev siv cov inline pressure transmitters zoo ua kom ntseeg tau tias lub digester pressure raug taug qab tas li. Inline density meters thiab viscosity meters, xws li cov uas tsim los ntawm Lonnmeter, xa cov ntaub ntawv tiag tiag ntawm cov kev daws teeb meem - pab ua kom zoo dua kev sib tov, kev yaj, thiab kev tig.
Cov khoom xa tawm theem thiab cov khoom xa tawm kub ua kom tiav cov cuab yeej siv no, ntes tau qhov sib txawv uas yuav qhia tau tias yuav muaj kev thaiv hauv kev ua cov viscose lossis kev hem thawj rau ib puag ncig. Kev ua haujlwm ntawm cov nroj tsuag kuj tsom mus rau kev tiv thaiv kev laus ntawm cov khoom sib khi thiab kev daws teeb meem xau ntawm cov khoom sib khi. Cov khoom sib khi uas raug rau cov tshuaj caustic yuav puas tsuaj, muaj kev pheej hmoo ntawm kev xau uas ua rau kev nyab xeeb ntawm cov neeg ua haujlwm thiab kev ua raws li ib puag ncig puas tsuaj. Cov sijhawm tshuaj xyuas tsis tu ncua, cov txheej txheem hloov pauv raws sijhawm, thiab cov khoom ntsuas xau tau siv los tiv thaiv kev ua haujlwm kom zoo.
Kev siv ua ke ntawm cov ntsiab lus tswj hwm no thiab cov cuab yeej inline thoob plaws kev siv sodium hydroxide hauv kev tsim cov fiber ntau ua kom ntseeg tau tias txhua theem - los ntawm kev ua noj pulp mus rau kev tig fiber - khiav tau zoo. Txoj hauv kev no tiv thaiv kev tawg kim, txhawb kev tiv thaiv crystallization, thiab txhawb nqa kev sib xws uas xav tau rau cov zis viscose fiber zoo.
Daim Duab Qhia Txog Cov Txheej Txheem Chloralkali
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Cov Teeb Meem Tseem Ceeb ntawm Cov Txheej Txheem Uas Tau Kho Los Ntawm Inline Pressure Measurement Solutions
Kev saib xyuas thiab tswj lub siab thoob plaws hauv cov txheej txheem tsim cov fiber viscose yog qhov tseem ceeb rau kev ua tiav cov khoom zoo thiab kev ua haujlwm zoo. Kev kho sodium hydroxide hauv kev ua viscose, tseem hu ua cellulose alkalization, nyob ntawm kev tswj lub siab kom meej kom tswj tau qhov zoo tshaj plaws ntawm NaOH cov tshuaj. Cov khoom xa tawm siab hauv kab muab cov lus teb rov qab tiag tiag, ua rau cov kws ua haujlwm ua haujlwm sai li sai tau thaum pom qhov sib txawv. Cov lus teb sai no yog qhov tseem ceeb rau kev zam kev ua yuam kev xws li kev tsis sib xws ntawm cov fiber, kev txo qis ntawm cov khoom, lossis lub zog fiber poob qis uas tuaj yeem tshwm sim los ntawm kev hloov pauv ntawm lub siab thaum lub sijhawm tseem ceeb ntawm cov kauj ruam tsim cov fiber viscose.
Cov tshuab xa xov xwm hauv Lonnmeter daws tau ntau yam teeb meem kev ua haujlwm. Lawv cov ntaub ntawv tiag tiag ua rau muaj kev tswj hwm sai thaum lub sijhawm ua noj cellulose, qhov twg NaOH nkag mus rau hauv cellulose pulp yog qhov tseem ceeb. Txhua qhov kev ncua sijhawm hauv kev ntes qhov hloov pauv siab tuaj yeem ua rau muaj kev hloov pauv hauv zos, ua rau kev kho alkaline cellulose tsis sib xws. Piv txwv li, yog tias qhov siab poob qis tsis tau xav txog thaum lub sijhawm zom zaub mov, kev siv sodium hydroxide tsis txaus hauv kev tsim cov fiber ntau yuav ua rau cov fiber tsis muaj zog thiab thaiv los ntawm cov tshuaj tsis tiav.
Kev tiv thaiv kev thaiv yog qhov tseem ceeb heev, vim tias crystallization tuaj yeem tsim nyob rau hauv cov kav dej txheej txheem thaum cov NaOH concentration hauv zos nce siab, lossis siab poob sab nraum cov kev teeb tsa. Lonnmeter transmitters txuas ntxiv mus taug qab qhov chaw ib puag ncig digester, tso cai rau cov neeg teb xov tooj cuam tshuam ua ntej crystallization ua rau muaj kev thaiv loj heev. Ib yam li ntawd, los ntawm kev ua kom muaj kev tswj hwm cov pa nkag mus rau hauv cov fiber ntau, lawv txhawb nqa kev siv hluav taws xob zoo thiab kev tswj hwm qhov kub thiab txias zoo tshaj plaws, cov yam ntxwv ze rau kev tswj hwm qhov siab digester thiab kev sib npaug ntawm lub zog fiber.
Cov foob pob qub thiab xau yog qhov txaus ntshai nyob rau hauv cov chaw kho alkaline cellulose, qhov twg cov tshuaj lom neeg ua rau cov khoom puas tsuaj sai dua. Cov ntaub ntawv siab los ntawm Lonnmeter cov khoom siv ceeb toom ua ntej ntawm cov qauv siab tsis zoo, qhia txog cov teeb meem foob pob tshiab. Kev sau cov ntaub ntawv txawm tias xau me me pab tiv thaiv kev cuam tshuam kev tsim khoom, kev poob khoom, thiab kev saib xyuas tsis tau teem sijhawm, txo cov nqi mus sij hawm ntev thiab tiv thaiv kev nyab xeeb ntawm tus neeg teb xov tooj.
Cov tshuab xa xov Lonnmeter tau tsim los rau kev sib koom ua ke nrog cov tshuab automation thiab kev tswj hwm uas twb muaj lawm. Qhov kev sib xws no ua rau cov ntaub ntawv ntws zoo rau kev txiav txim siab sib koom tes. Thaum siv ua ke nrog cov ntsuas concentration inline, cov ntsuas density, cov ntsuas viscosity, cov ntsuas qib, thiab cov ntsuas kub, lawv txhawb nqa kev saib xyuas cov txheej txheem. Cov thawj coj cog qoob loo tuaj yeem ua kom zoo dua qhov kev sib xyaw ntawm NaOH rau kev tswj hwm viscose thiab digester siab, xyuas kom meej tias cov khoom sib xws, thiab tswj kev siv hluav taws xob kom zoo - txhua yam tseem ceeb rau kev txo cov nqi kho thiab xyuas kom meej tias muaj kev tsim cov fiber viscose ruaj khov.
Cov Ntsiab Lus Txhim Kho Zoo Tshaj Plaws thiab Kev Ua Haujlwm Zoo
Kev tso cov transmitters siab hauv kab ntawm qhov nkag thiab qhov tawm ntawm NaOH digester muab ib daim duab dav dav, lub sijhawm tiag tiag ntawm lub zog siab thaum lub sijhawm ua noj cellulose tseem ceeb. Kev nyeem qhov siab raug ntawm cov chaw no ua rau muaj kev tswj hwm nruj ntawm NaOH cov kua rau viscose, cuam tshuam ncaj qha rau kev kho alkaline cellulose thiab cov txheej txheem alkalization cellulose. Kev tso cov transmitters ze ntawm cov valve tswj pab taug qab kev tswj hwm pa nkag, uas yog qhov tseem ceeb rau kev ua kom zoo dua qhov kub thiab txias thiab tswj kev sib xws thoob plaws cov kauj ruam tsim cov fiber viscose.
Kev teeb tsa ntawm cov kab nkag mus rau hauv cov pa thiab cov chaw uas paub tias muaj kev sib xyaw ua ke lossis kev thaiv muab kev ceeb toom ua ntej rau kev cuam tshuam. Kev saib xyuas cov cheeb tsam no txo qhov kev pheej hmoo ntawm kev xau ntawm lub foob thiab txhawb nqa cov tswv yim tiv thaiv kev laus ntawm lub foob. Txoj hauv kev ua ntej no tiv thaiv cov teeb meem tshwm sim xws li kev thaiv hauv kev ua cov viscose lossis kev faib NaOH tsis sib xws.
Cov lus teb rov qab tiag tiag los ntawm cov transmitters siab txhawb nqa kev tswj hwm lub zog digester ruaj khov. Kev ua haujlwm ruaj khov tiv thaiv kev nce lossis poob sai sai uas yuav ua rau tsis tau npaj tseg. Lawv kuj txhim kho kev sib npaug ntawm lub zog fiber los ntawm kev ua kom cov tshuaj sodium hydroxide hauv kev ua viscose tseem nyob hauv cov kev cai.
Cov ntaub ntawv siab tas mus li, txhim khu kev qha txo qhov tsis ua haujlwm zoo los ntawm kev xau ntawm lub foob, uas ua rau kev siv sodium hydroxide hloov pauv hauv kev tsim cov fiber thiab kev sib tw txij nkawm. Kev saib xyuas siab zoo txhawb nqa kev ruaj khov ntawm cov txheej txheem tsim cov fiber viscose los ntawm kev txiav cov tshuaj pov tseg thiab txwv lub sijhawm tsis ua haujlwm. Raws li, cov cuab yeej ntsuas inline siab heev no yog qhov tseem ceeb rau kev tsim cov fiber viscose uas tsim nyog, zoo, thiab ib puag ncig zoo. Qhov tseeb uas cov transmitters siab xa tawm txhais tau ncaj qha mus rau kev ua haujlwm zoo dua, txo cov nqi txij nkawm, thiab cov khoom zoo sib xws.
Cov Lus Nug Feem Ntau (FAQs)
Q1: Kev tswj lub zog ntawm lub digester tiag tiag ua li cas thiaj txhim kho cov txheej txheem tsim cov fiber viscose?
Kev tswj lub zog ntawm lub digester tiag tiag ua rau kev kho sodium hydroxide thiab kev ua noj cellulose nyob rau hauv cov kev cai tswj hwm nruj. Qhov kev ua kom raug no ua kom cov txheej txheem alkalization cellulose khiav tas li, txo qhov kev hloov pauv uas tuaj yeem ua rau cov fiber tsis sib xws. Thaum lub zog tseem ruaj khov, txhua pawg cellulose tau txais kev cuam tshuam rau NaOH sib npaug, ua rau muaj zog fiber ntau dua thiab muaj zog. Cov khoom kawg muab cov khoom zoo dua vim yog cov xwm txheej tswj hwm no.
Q2: Lub luag haujlwm ntawm NaOH cov kua tshuaj ua si li cas hauv cov kauj ruam tsim cov fiber viscose?
Qhov kev sib xyaw ua ke ntawm NaOH rau viscose yog qhov txiav txim siab rau kev ua tiav ntawm kev kho alkaline cellulose. Cov cellulose yuav tsum raug rau qhov kev sib xyaw ua ke ntawm NaOH kom dhau los ua qhov kev hloov pauv zoo; tsawg dhau ua rau muaj kev tsis sib haum xeeb tsis tiav, ua rau cov fibers tsis muaj zog thiab tsis sib luag. Kev sib xyaw ua ke ntau dhau tuaj yeem ua rau cellulose puas tsuaj, ua rau cov fiber brittleness. Kev tswj hwm qhov kev sib xyaw ua ke kom raug yog lub hauv paus rau kev tswj hwm qhov zoo hauv txhua kauj ruam ntawm kev tsim cov fiber viscose, txij li kev kho thawj zaug mus txog qhov kawg spinning.
Q3: Cov teeb meem dab tsi uas cov inline pressure transmitters tuaj yeem pab tiv thaiv hauv kev tsim cov viscose fiber?
Cov tshuab xa xov siab hauv kab yog qhov tseem ceeb rau kev tiv thaiv kev siv lead ua hauv kev tsim cov fiber. Kev ruaj khov ntawm lub siab txo qhov kev pheej hmoo ntawm NaOH crystallizing, uas tuaj yeem txhaws cov kav dej thiab ua rau muaj kev thaiv kim heev hauv kev ua cov viscose. Lawv kuj tseem ua rau kev tiv thaiv kev laus ntawm kev sib khi los ntawm kev cim qhia txog kev poob siab tsis zoo, uas yuav qhia txog kev xau ntawm lub foob. Kev kuaj pom thaum ntxov ntawm kev daws teeb meem xau ntawm lub foob yog ua tau los ntawm kev saib xyuas cov kev hloov pauv no, txo cov kev kaw tsis tau npaj tseg thiab zam kev ua qias tuaj ntawm cov khoom.
Q4: Vim li cas kev tswj hwm cov pa dej thiaj li tseem ceeb rau kev sib npaug ntawm lub zog ntawm cov fiber viscose?
Kev tswj cov pa dej hauv lub tshuab zom zaub mov tswj qhov kub thiab siab hauv lub tshuab zom zaub mov, ob qho tib si tseem ceeb rau cov txheej txheem ua noj cellulose. Yog tias cov pa dej xa mus tsis zoo, qhov kub thiab siab tuaj yeem hloov pauv, ua rau muaj kev tsis sib xws hauv kev o thiab kev tsim cov fiber. Cov cuab yeej saib xyuas lub sijhawm tiag tiag lav tias cov fiber ua tiav cov qauv thiab lub zog sib xws, txhawb nqa cov txiaj ntsig khoom zoo sib xws thiab txo cov khoom pov tseg vim yog cov lus qhia tsis ua haujlwm.
Q5: Puas muaj lwm cov cuab yeej siv hauv kab ua haujlwm uas ua rau lub tshuab xa siab ua haujlwm tau zoo hauv cov nroj tsuag viscose fiber?
Lwm cov cuab yeej siv hauv cov txheej txheem ua haujlwm ua lub luag haujlwm sib koom ua ke hauv kev saib xyuas thiab tswj kev siv sodium hydroxide hauv kev tsim cov fiber. Kev sib xyaw ua ke ntawm cov ntsuas qhov ceev hauv kab, cov ntsuas viscosity los ntawm Lonnmeter, cov ntsuas concentration, cov ntsuas qib, thiab cov ntsuas kub tsim cov duab tiav ntawm kev noj qab haus huv ntawm cov txheej txheem. Piv txwv li, cov ntsuas qhov ceev txheeb xyuas qhov concentration ntawm NaOH cov tshuaj thaum lub sijhawm cellulose alkalization, thaum cov ntsuas viscosity xyuas cov khoom ntws uas xav tau rau kev tig zoo. Cov cuab yeej no ua kom ntseeg tau tias txhua qhov parameter tau sib dhos, txhim kho qhov zoo ntawm cov fiber thiab cov txheej txheem ua haujlwm zoo.
Lub sijhawm tshaj tawm: Lub Ib Hlis-15-2026
