Kev tswj hwm cov txheej txheem acid pickling rau cov hlau kub dov yog qhov tseem ceeb kom ntseeg tau tias cov khoom zoo thiab cov txheej txheem ua haujlwm tau zoo hauv kev tsim hlau. Ob qho kev pheej hmoo tseem ceeb - pickling ntau dhau thiab pickling tsis txaus - yuav tsum tau tswj hwm kom tiv thaiv kev puas tsuaj rau cov khoom siv thiab tswj cov xwm txheej zoo tshaj plaws.
Txheej txheem cej luam ntawm Acid Pickling Txheej Txheem
Cov txheej txheem acid pickling rau cov hlau kub dov yog ib theem tseem ceeb hauv kev tsim hlau, tsim tshwj xeeb los tshem tawm cov nplai oxide uas tsim thaum lub sijhawm kub dov. Cov txheej txheem hydrochloric acid pickling hauv kev tsim hlau yaj cov oxides zoo li Fe2O3, Fe3O4, thiab FeO, kom ntseeg tau tias cov nplaim hlau huv si rau cov kauj ruam ua ntxiv xws li galvanizing, txheej, lossis kev sib txuas. Kev tshem tawm cov nplai no yog qhov tseem ceeb, vim tias cov pickling tsis sib xws tuaj yeem ua rau tsis lo lossis qhov tsis zoo hauv cov khoom hlau.
Tseebkev tswj cov kua qaubHauv cov chaw da dej pickling ncaj qha cuam tshuam rau qhov zoo ntawm qhov chaw, kev tsim khoom ntau lawm, thiab kev ua haujlwm zoo. Yog tias cov kua qaub ntau dhau, qhov tshwm sim tuaj yeem ua rau cov kua qaub ntau dhau, uas ua rau cov hlau substrate xeb, ua rau cov hlau poob ntau ntxiv, thiab ua rau cov khoom siv kho tshuab puas tsuaj xws li lub zog tensile thiab kev khoov tau. Ntawm qhov tod tes, kev ua kom tsis muaj kua qaub ntau dhau vim tias cov kua qaub tsawg lossis cov kua qaub tsis txaus ua rau cov oxide seem, ua rau cov khoom tsis zoo thiab cov khoom tsis zoo. Ob qho tib si ua rau cov khoom siv tiv thaiv strip substrate puas tsuaj thiab qhov zoo ntawm cov khoom tiav. Qhov no ua rau kev tswj cov kua qaub hauv cov kua qaub tseem ceeb rau kev sib xws ntawm cov txheej txheem, txo cov khoom seem, thiab ua tiav cov txheej txheem ruaj khov.
Kev Ua Hlau Pickle Line
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Kev nce qib hauv cov txheej txheem ntsuas cov kua qaub tau hloov pauv kev tswj cov kab pickling hauv xyoo tas los no. Cov cuab yeej siv tshuab xws li Lonnmeter tsis siv neegntsuas qhov concentration ntawm cov kua qaub, daim ntawv thov ntsuas concentration ntawm rab diav rawg hauv kev ua kua qaub pickling, thiab lub ntsuas dej ntws coriolis rau kev ntsuas concentration tam sim no muab kev saib xyuas acid concentration tiag tiag rau kev tswj pickling. Cov thev naus laus zis no ua rau muaj kev tswj hwm cov txheej txheem kaw-voj hauv kev ua kua qaub pickling los ntawm kev soj ntsuam HCl concentration tiag tiag thiab xa cov ntaub ntawv mus rau cov txheej txheem ua kua qaub tsis siv neeg rau cov kab pickling. Qhov no ua rau muaj kev ntsuas acid ruaj khov dua, txo qis kev siv kua qaub, thiab txo qis kev tsim cov khib nyiab. Piv txwv li, kev tswj hwm concentration ntawm lub ntsuas dej ntws hauv cov txheej txheem pickling tsis yog tsuas yog tiv thaiv kev ua kua qaub ntau dhau lossis tsis ua kua qaub ntau dhau xwb tab sis kuj ua kom zoo dua kev ua haujlwm pickling los ntawm kev tswj concentration thiab txhawb nqa cov tswv yim txo qis kev siv kua qaub hauv kev ua hlau pickling.
Kev daws teeb meem automationmus dhau qhov yooj yim nrhiav tau. Kev ruaj khov ntawm cov txheej txheem sib xyaw ua ke siv cov ntaub ntawv tiag tiag los ntawm cov ntsuas concentration online siab heev los kho qhov kev ntsuas dosing, kev sib xyaw, thiab kev rov ua dua tshiab ntawm chav dej. Qhov no ua rau lub zog acid nyob hauv cov hom phiaj tau teev tseg, ua kom ntseeg tau tias qhov zoo ntawm qhov chaw thiab ntev lub neej ntawm chav dej. Cov txheej txheem tsis siv neeg, xws li cov uas siv Lonnmeter meters, tau dhau los ua qhov tseem ceeb rau kev ua kom zoo dua qhov concentration acid hauv cov txheej txheem pickling, ua rau cov chaw tsim khoom tuaj yeem sib phim qhov zoo ntawm kev tsim khoom nrog kev txuag nyiaj ua haujlwm thiab kev saib xyuas ib puag ncig.
Cov Ntsiab Lus ntawm Hydrochloric Acid Pickling hauv Kev Kho Mob Kub Rolled Strip
Cov Txheej Txheem Tshuaj Lom Zem thiab Kev Xav Txog Cov Khoom Siv
Cov txheej txheem pickling acid rau cov hlau kub dov yog nyob ntawm kev tshem tawm cov nplai oxide - feem ntau yog cov hlau oxides (FeO, Fe3O4, Fe2O3) - uas tsim thaum lub sijhawm kub dov. Hydrochloric acid (HCl) reacts nrog cov oxides no, tsim cov hlau chlorides thiab dej uas yaj tau. Piv txwv li:
- Fe2O3 + 6 HCl → 2 FeCl3 + 3 H2O
- Fe3O4 + 8 HCl → FeCl2 + 2 FeCl3 + 4 H2O
Qhov nrawm ntawm kev txav mus los thiab kev ua tiav ntawm cov nplai yaj nyob ntawm cov nplai sib xyaw thiab tuab. Cov txheej hlau oxide yooj yim yaj sai. Txawm li cas los xij, cov nplai nrog cov qauv nyuaj - xws li cov uas muaj fayalite (Fe2SiO4) los ntawm Si-nplua nuj hlau - yog cov tawv ncauj thiab qeeb rau kev tshem tawm. Cov txheej txheem no xav tau qhov kub siab dua, kev siv tshuaj lom neeg da dej ntau dua, lossis cov tshuaj ntxiv rau kev kho mob kom zoo.
Cov chloride ions, ob qho tib si los ntawm HCl thiab kev ntxiv NaCl, ua rau kom cov pickling rate nce ntxiv. Lawv qhov muaj nyob ua rau cov nplai yaj los ntawm kev sib xyaw thiab kev nqus ntawm qhov sib txuas oxide, thaum tseem txo qis kev tawm tsam ncaj qha rau ntawm cov hlau substrate. Piv txwv li, kev ntxiv 10% HCl cov tshuaj nrog 10% NaCl tau pom tias ua kom cov pickling sai dua thiab txo qhov xeb tsis xav tau ntawm cov hlau raug. Thaum cuam tshuam nrog cov hom oxide nyuaj, xws li fayalite, cov khoom ntxiv xws li FeCl3 txhawb cov nqi tshem tawm thiab ua kom lub sijhawm pickling zoo dua nrog cov khoom pov tseg tsawg dua. Txawm li cas los xij, txhua qhov kev qhia ntxiv yuav tsum tau xav txog kev tswj hwm da dej tag nrho thiab cov teebmeem ib puag ncig.
Vim tias cov oxide tuab thiab cov qauv tuaj yeem tsis sib xws thoob plaws qhov dav ntawm lub kauj, cov tshuaj teb sib txawv ntawm thaj chaw mus rau thaj chaw. Qhov kev hloov pauv no xav tau kev tswj hwm cov txheej txheem nruj, qhia los ntawm cov txheej txheem ntsuas cov kua qaub tas mus li, kom ntseeg tau tias cov nplai raug tshem tawm tag nrho yam tsis ua rau cov hlau hauv qab puas tsuaj.
Cov Txheej Txheem Tseem Ceeb hauv Acid Pickling
Cov txheej txheem tseem ceeb - qhov kub ntawm lub dab dej, qhov concentration ntawm cov kua qaub, cov khoom sib xyaw ntawm lub dab dej, thiab qib hlau - ua ke tswj hwm qhov ua tau zoo thiab kev nyab xeeb ntawm hydrochloric acid pickling hauv kev tsim hlau. Cov txiaj ntsig zoo tas li xav tau:
- Feem ntau qhov kub ntawm da dej yuav tsum nyob ntawm 80–90°C. Qhov kub siab dua yuav ua rau cov hlau yaj sai dua, ua rau lub sijhawm pickling tsawg dua thiab tshem tawm cov nplai kom huv si. Txawm li cas los xij, qhov kub siab dhau, thiab kev pheej hmoo ntawm kev xeb ntawm cov hlau yuav nce siab heev.
- Qhov concentration ntawm cov kua qaub (acid) nyob hauv 3–11% (w/v) HCl. Qhov no ua kom muaj kev tshem tawm cov av nplaum zoo thaum txwv tsis pub siv cov kua qaub ntau dhau thiab kev tawm tsam cov khoom siv tsis tsim nyog. Kev saib xyuas cov kua qaub hauv lub sijhawm tiag tiag, feem ntau nrog cov ntsuas concentration tsis siv neeg lossis cov cuab yeej zoo li Lonnmeter automatic acid concentration meter, ua kom cov concentration ruaj khov hauv qhov txwv zoo tshaj plaws.
- Cov khoom siv da dej uas tsim los rau qib hlau thiab hom nplai. Rau cov hlau nplua nuj Si, cov tshuaj inhibitors ntxiv lossis cov neeg sawv cev hloov kho yog qhov tsim nyog. Cov tshuaj inhibitors corrosion xws li hydroxyethyl cellulose (HEC) txo qhov poob ntawm cov substrate thiab tiv thaiv cov qib rhiab heev, txawm tias nyob rau hauv kev raug kua qaub hnyav.
- Kev tiv thaiv cov khoom siv strip substrate kuj tau ua kom ntseeg tau los ntawm kev sib npaug ntawm chloride ion activity thiab acid strength. Cov da dej uas ua haujlwm hnyav dhau yuav ua rau cov hlau pov tseg ("over-pickling"), thaum cov da dej tsis muaj zog yuav ua rau "under-pickling" thiab tshem tawm cov oxide tsis tiav, uas yuav tsum tau ua haujlwm kim heev.
Rau kev ruaj khov ntawm cov txheej txheem, cov txheej txheem tswj hwm cov txheej txheem kaw-loop feem ntau raug siv, kev sib xyaw ua ke ntawm cov tswv yim los ntawm cov khoom siv tswj kev ntsuas concentration lossis cov ntawv thov ntsuas concentration. Cov txheej txheem no tswj cov tshuaj lom neeg hauv chav dej kom sib haum nrog qhov ceev ntawm kab thiab thaj chaw ntawm cov hlau, txhawb nqa ncaj qha rau cov tswv yim txo qis kev siv kua qaub thiab txo qis kev ua haujlwm sib txawv.
Qhov ua tiav ntawm qhov chaw thiab qhov ruaj khov ntawm cov khoom siv yog txiav txim siab los ntawm kev sib cuam tshuam ntawm cov hloov pauv no. Qhov kub ntau dhau lossis cov kua qaub ntau dhau tuaj yeem ua rau cov hlau ntxhib lossis khawb, tshwj xeeb tshaj yog ntawm cov npoo ntawm lub kauj lossis hauv cov cheeb tsam uas muaj cov oxide nyias dua. Ntawm qhov tod tes, cov xwm txheej tsis muaj zog ua rau cov nplaim tsis zoo, tsis haum rau kev txheej txheem lossis kev tsim cov haujlwm.
Hauv kev xaus lus, cov txheej txheem hydrochloric acid pickling hauv kev tsim hlau yog tswj hwm los ntawm kev sib koom tes ntawm cov tshuaj lom neeg, cov yam ntxwv ntawm cov substrate, thiab kev tswj hwm qhov tseeb ntawm cov kev ua haujlwm. Kev ntsuas cov kua qaub concentration thiab kev ua kom zoo dua ntawm cov txheej txheem ua rau muaj kev txhim kho kev ua haujlwm pickling thiab kev tiv thaiv cov ntawv hlau zoo dua, ua tau raws li qhov xav tau ntawm cov kab ua hlau niaj hnub.
Cov teeb meem hauv kev tswj cov txheej txheem acid pickling
Cov Teeb Meem Tseem Ceeb ntawm Kev Zoo thiab Kev Tsim Khoom
Kev kub hnyiab ntau dhau tshwm sim thaum lub pas dej hydrochloric acid tshem tawm tsis yog tsuas yog cov oxides xwb tab sis kuj tawm tsam cov hlau substrate. Qhov no ua rau yaj ntau dhau, nyias nyias ntawm daim hlau, thiab tuaj yeem ua rau lub kauj tawg thaum lub sijhawm ua haujlwm downstream. Kev kub hnyiab ntau dhau ua rau cov khoom siv daim hlau puas tsuaj, ua rau lub zog txo qis thiab nce tus nqi pov tseg. Nws feem ntau yog los ntawm kev tswj hwm cov kua qaub tsis zoo, kub siab, lossis lub sijhawm immersion ntau dhau.
Qhov sib txawv, kev ua kom tsis txhob kub hnyiab, ua rau cov oxide scales tsis zoo rau ntawm qhov chaw hlau. Qhov no cuam tshuam tsis zoo rau kev txo qhov txias, kev vuam, kev pleev xim, thiab lwm yam txheej txheem ua tiav. Qhov zoo ntawm qhov chaw poob qis, ua rau muaj kev cuam tshuam rau qhov tsis zoo thiab xeb. Cov laj thawj feem ntau suav nrog lub zog acid tsis txaus, qhov kub qis hauv chav dej, lossis qhov ceev ntawm kab teeb tsa sai dhau rau kev tshem tawm cov scales zoo.
Yuav kom tswj tau qhov kev ntseeg siab ntawm cov txheej txheem thiab txo qhov tsis zoo, cov chaw tsim hlau vam khom kev saib xyuas zoo ntawm cov yam ntxwv tseem ceeb xws li cov kua qaub concentration, lub sijhawm immersion, thiab qhov kub. Cov txheej txheem ntsuas cov kua qaub concentration tiag tiag, suav nrog cov ntsuas concentration tsis siv neeg (piv txwv li, Lonnmeter automatic acid concentration meter), fork concentration meters, thiab flow meter concentration control systems, tso cai rau kev tawm tswv yim tam sim ntawd kom tsis txhob muaj pickling heev. Cov kab ke no ua rau muaj kev tswj hwm cov txheej txheem kaw-loop thiab ruaj khov cov khoom sib xyaw, txo qhov kev pheej hmoo ntawm ob qho tib si over- thiab under-pickling, tshwj xeeb tshaj yog thaum hloov cov khoom lossis da dej laus.
Kev siv cov kua qaub yog qhov tseem ceeb uas ua rau tus nqi khiav lag luam thiab ib puag ncig kim dua. Kev siv cov kua qaub hydrochloric muaj feem cuam tshuam ncaj qha rau qhov ua tau zoo, qib hlau, thiab qhov tuab ntawm cov oxide saum npoo. Kev siv ntau dhau ua rau cov nqi khoom siv raw nce siab, ua rau cov khib nyiab phom sij nce ntxiv, thiab ua rau muaj kev nyuaj siab rau ib puag ncig. Cov tswv yim txo kev siv cov kua qaub hauv kev ua cov hlau pickling—xws li cov txheej txheem ua cov kua qaub tsis siv neeg, kev saib xyuas da dej tas mus li, thiab kev siv tshuaj zoo—txhawb nqa kev tsim khoom thaum txiav cov nqi thiab txo qhov cuam tshuam rau ib puag ncig.
Kev tswj hwm qhov concentration tas li hauvkev siv kua qaub, feem ntau ua tiav los ntawm kev saib xyuas cov kua qaub hauv lub sijhawm tiag tiag, txhim kho kev kwv yees thiab tiv thaiv cov khoom siv strip thoob plaws hauv kev tsim khoom. Kev tswj hwm qhov sib npaug zoo ntawm kev tshem tawm oxide thiab kev khaws cia cov khoom tsis yog tsuas yog txhim kho kev ua haujlwm pickling xwb tab sis kuj txhim kho kev ua haujlwm ntawm cov khoom lag luam thiab kev txaus siab ntawm cov neeg siv khoom.
Kev Xav Txog Ib puag ncig thiab Kev Nyab Xeeb
Cov pa roj hydrochloric acid yog ib qho teeb meem loj rau kev noj qab haus huv hauv qhov chaw pickling. Kev raug - txawm tias muaj qhov tsawg tsawg - tuaj yeem ua rau mob ntsws, mob ntsws ntev, thiab ua haujlwm tsis zoo hauv lub ntsws mus ntev. Cov ntaub ntawv kab mob sib kis qhia tias muaj kev pheej hmoo siab ntawm mob qog nqaij hlav ntsws thiab laryngeal ntawm cov neeg ua haujlwm pickling hlau uas raug cov pa roj HCl ntev. Kev saib xyuas huab cua tas li, kev ua pa zoo, cov tshuab tso pa tawm hauv zos, thiab cov tshuaj ntxuav pa roj acid yog cov kev tiv thaiv tsim nyog. Cov khoom siv tiv thaiv tus kheej xws li cov tshuab ua pa thiab cov khaub ncaws tiv thaiv tshuaj tseem yog ib qho kev ntsuas tiv thaiv tus qauv.
Cov thev naus laus zis tswj kev tso pa tawm yog lub hauv paus ntawm txoj kev nyab xeeb ib puag ncig. Cov txheej txheem rov ua dua tshiab ntawm cov kua qaub hydrochloric uas siv lawm, txo qis kev siv cov kua qaub tshiab thiab kev tso tawm cov pa phem. Cov txheej txheem rov ua dua tshiab suav nrog pyrohydrolysis reactors, diffusion dialysis, thiab acid sorption, txhua qhov tau ua kom zoo rau cov kev xav tau tshwj xeeb thiab cov khoom sib xyaw ua ke ntawm cov kua qaub. Cov txheej txheem no tso cai rau cov nqi rov qab tau txog li 99.5% rau HCl, yog li txhawb nqa kev ruaj khov ntawm cov txheej txheem.
Yuav tsum tau ua kom cov txheej txheem ruaj khov kom ua raws li cov qauv tso pa tawm, xws li cov uas tau teev tseg los ntawm EPA Cov Qauv Tso Pa Tawm Hauv Tebchaws rau Cov Pa Phem Huab Cua. Kev tswj cov kua qaub tsis siv neeg—los ntawm cov ntsuas dej ntws coriolis thiab cov cuab yeej siv siab heev—tso cai rau kev tswj hwm cov tshuaj lom neeg hauv chav dej kom nruj dua, txhawb nqa kev txo qis kev tso pa tawm thiab kev ua haujlwm zoo tshaj plaws.
Kev txo cov pa phem tawm, los ntawm kev tswj hwm cov txheej txheem pickling acid kom zoo, tsis yog tsuas yog ua raws li txoj cai xwb tab sis kuj tiv thaiv kev noj qab haus huv ntawm cov neeg ua haujlwm thiab ib puag ncig. Kev saib xyuas tiag tiag thiab kev tswj hwm cov txheej txheem ua lub luag haujlwm tseem ceeb hauv kev tswj hwm kev ua haujlwm pickling hlau kom muaj kev nyab xeeb, ua haujlwm tau zoo, thiab ruaj khov.
Hauv kabCkev tsom mus rauKev Ntsuas Cov Txuj Ci thiab Lawv Lub Luag Haujlwm hauv Kev Txhim Kho Cov Txheej Txheem Pickling
Cov Ntsiab Cai ntawm Inline AcidCkev tsom mus rauKev Ntsuas
Kev saib xyuas lub sijhawm tiag tiag ntawm cov kua qaub ntau ntau yog qhov tseem ceeb rau kev ua kom raug hauv cov txheej txheem pickling hydrochloric acid rau cov ntawv kub dov. Kev ntsuas cov kua qaub ntau ntau hauv kab ua rau muaj kev tawm tswv yim tam sim ntawd ntawm cov dej da dej, uas ua rau muaj kev hloov kho sai sai kom tswj tau cov xwm txheej pickling zoo tshaj plaws.
Qhov concentration ntawm hydrochloric acid ncaj qha txiav txim siab qhov nrawm thiab qhov ua tau zoo ntawm kev tshem tawm oxide. Kev tswj cov txheej txheem ruaj khov—tshwj xeeb tshaj yog qhov concentration ntawm acid—tiv thaiv kev hloov pauv uas tuaj yeem ua rau muaj kev sib xyaw ntau dhau, uas ua rau cov substrate puas tsuaj, lossis tsis sib xyaw ntau dhau, uas ua rau muaj qhov seem seem. Los ntawm kev ntsuas qhov concentration ntawm acid hauv kab, cov neeg ua haujlwm ua tiav kev tswj hwm qhov concentration nruj, txo kev siv thiab pov tseg, thaum ua kom zoo tshaj plaws. Qhov kev ntsuas tas mus li no yog qhov tseem ceeb rau cov kab ke tswj hwm kaw, qhov twg cov ntaub ntawv concentration tsav cov kua qaub tsis siv neeg thiab kev ntsuas, ua kom ntseeg tau tias cov tshuaj lom neeg da dej sib xws thiab txo kev cia siab rau kev kuaj tes.
Kev Txheeb Xyuas Txog Tus yuam sijCkev tsom mus rauMeter Technologies
Diav rawgCkev tsom mus rauLub ntsuas
Cov ntsuas concentration ntawm rab diav rawg siv lub hauv paus ntsiab lus ntawm rab diav rawg uas co. Cov hniav ntawm lub sensor co ntawm lub zaus resonant uas hloov los ntawm qhov concentration ntawm cov kua dej. Txoj kev no muab kev ntsuas sai thiab ruaj khov rau kev saib xyuas cov kua qaub hauv online, tshwj xeeb tshaj yog hauv cov kab hlau txuas ntxiv mus. Cov ntsuas concentration ntawm rab diav rawg muaj zog, ua siab ntev rau cov xwm txheej hnyav, thiab tsis tas yuav saib xyuas ntau, ua rau lawv zoo rau kev saib xyuas cov dej hydrochloric acid pickling hauv kev tsim hlau. Lawv qhov kev sib txuas ncaj qha nrog cov tshuab automation ua kom cov ntaub ntawv tshaj tawm yooj yim rau kev tswj cov concentration hauv cov kua qaub pickling.
Lonnmeter Tsis Siv Neeg Ckev tsom mus rauLub ntsuas
Lonnmeter lub tshuab ntsuas qhov concentration tsis siv neeg siv cov thev naus laus zis ultrasonic, muab kev saib xyuas tas mus li ntawm cov kua qaub hauv chav dej. Nrog kev tsim los ntawm cov hlau nplaum thiab cov polymers uas tiv taus kua qaub, lub kaw lus Lonnmeter tiv taus cov xwm txheej pickling hydrochloric acid. Nws cov peev xwm automation suav nrog cov zis tawm ntawm cov ntaub ntawv concentration (ntawm 4-20mA lossis RS485) rau cov kab ke tswj hwm rau kev tsim kua qaub thiab kev ntsuas. Qhov no txo qis kev cuam tshuam ntawm tib neeg, txhawb kev tswj hwm chav dej, thiab txo cov txheej txheem sib txawv. Thaum koom ua ke rau hauv kev tswj hwm cov txheej txheem kaw, Lonnmeter txhim kho kev ua haujlwm pickling, txo cov nqi tsis lees txais, thiab pab txhawb cov tswv yim txo qis kua qaub zoo tshaj plaws.
Lwm yam Flow Meter Ckev tsom mus rauCov thev naus laus zis
Cov txheej txheem ntsuas kev ntsuas ntxiv suav nrog cov khoom siv hlau vibrating thiab cov uas siv cov khoom siv sib xyaw ua ke ntawm sonic velocity thiab conductivity sensors. Txhua lub thev naus laus zis muaj lub zog tshwj xeeb uas tsim rau cov xwm txheej tshwj xeeb ntawm kev ntxuav dej. Piv txwv li, cov khoom siv hlau vibrating muaj kev ntsuas siab tab sis yuav raug cuam tshuam ntau dua los ntawm kev ua qias tuaj ntawm dej. Kev sib xyaw ua ke ntawm sonic velocity/conductivity tuaj yeem sib txawv cov kua qaub thiab cov ntsev uas yaj, tseem ceeb rau kev ntxuav hydrochloric acid uas ob qho tib si xav tau kev saib xyuas rau kev tiv thaiv cov khoom siv strip substrate. Kev xaiv nyob ntawm qhov chaw ua haujlwm, qhov tseeb ntawm kev ntsuas, kev yooj yim ntawm kev koom ua ke, thiab kev xav tau kev saib xyuas.
Kev sib koom ua ke ntawm Inline Ckev tsom mus rauCov 'meter' hauv Hydrochloric Acid Pickling
Rau cov kab pickling tas mus li, cov ntsuas concentration inline raug teeb tsa ncaj qha rau hauv lub voj voog rov ua dua ntawm cov kua qaub, siv cov flanges thiab qhov sib nrug kom txo qis kev raug rau kev ntxhov siab ntawm cov khoom siv lossis tshuaj lom neeg. Kev ua haujlwm ua ke siv cov khoom siv probe ntawm cov chaw tseem ceeb hauv lub dab dej rau kev saib xyuas qhov chaw lossis lub voj voog.
Yuav kom ua kom cov kua qaub ntau ntxiv hauv cov txheej txheem pickling, cov sensors no tau txuas rau hauv cov tshuab ua kua qaub tsis siv neeg, kom ntseeg tau tias muaj kev tawm tswv yim tiag tiag rau kev ntsuas kom raug. Kev tau txais cov ntaub ntawv feem ntau yog ua los ntawm cov txheej txheem tswj kev lag luam, nrog rau cov cim xa mus rau cov platform saib xyuas hauv nruab nrab kom teb sai.
Kev siv tshuab txuas ntxiv mus rau cov voj voog tswj kev tawm tswv yim uas kho cov kua qaub kom tswj tau cov concentration. Kev kho kom zoo ntawm cov kab ke no tiv thaiv kev sib xyaw ntau dhau - zam kev puas tsuaj rau cov khoom siv - thiab kev sib xyaw tsawg dhau - tshem tawm cov nplai tsis tiav. Qhov tshwm sim yog qhov zoo ntawm cov ntawv nplaum, txo qis kev siv kua qaub, thiab txhim kho cov txheej txheem kev ruaj khov. Cov tswv yim teeb tsa xav tau kev tiv thaiv ib puag ncig rau cov sensors, cov cabling kaw, thiab kev ntxuav raws sijhawm kom tswj tau qhov kev ntsuas. Cov neeg ua haujlwm yuav tsum tau kawm txog kev tswj hwm sensor, hais txog kev nyab xeeb, kev saib xyuas cov cuab yeej, thiab kev teb rau kev ua haujlwm tsis sib xws.
Kev Tswj Xyuas Txheej Txheem Kaw-Loop rau Kev Ua Kom Zoo Dua ntawm Pickling Bath
Qhov Tseem Ceeb ntawm Cov Ntaub Ntawv Tam Sim No thiab Cov Txheej Txheem Tawm Tswv Yim
Kev ntsuas qhov concentration ntawm cov kua qaub kom raug yog qhov tseem ceeb rau kev tswj cov txheej txheem kaw-voj hauv cov txheej txheem pickling acid rau cov ntawv kub dov. Cov ntsuas concentration tsis siv neeg rau cov concentration acid, suav nrog Lonnmeter automatic acid concentration meter lossis fork concentration meters, tau teeb tsa ncaj qha rau hauv lub voj voog pickling da dej. Cov khoom siv no muab cov lus teb tsis tu ncua, lub sijhawm tiag tiag ntawm hydrochloric acid concentration thiab da dej concentration. Cov ntaub ntawv raug xa mus rau tus tswj txheej txheem, feem ntau yog tus tswj programmable logic (PLC), uas txhais cov ntaub ntawv thiab xa cov lus txib mus rau cov kab ke dosing lossis cov twj tso kua qaub ua kom zoo.
Cov ntsuas dej ntws Coriolis rau kev ntsuas qhov concentration, nrog rau cov tshuab ntsuas dej ntws concentration, muab cov tswv yim siab rau kev tswj hwm cov kua qaub concentration. Kev saib xyuas cov kua qaub concentration tiag tiag tsis yog tsuas yog ua kom zoo dua kev siv tshuaj xwb tab sis kuj tseem ua rau muaj kev hloov kho dosing tsis siv neeg - kua qaub tsuas yog ntxiv thaum xav tau los tswj qhov chaw teeb tsa, txo qis kev noj ntau dhau.
Cov txheej txheem kho kom haum tsis siv neeg txo qhov yuam kev thiab kev ncua sij hawm ntawm tib neeg. Thaum cov kua qaub qis dua qhov zoo tshaj plaws rau kev tshem tawm cov nplai, lub kaw lus pib ntxiv cov kua qaub siv cov ntsiab lus txhaj tshuaj ncaj qha. Ntawm qhov tod tes, yog tias cov concentration nce mus rau qib uas yuav muaj kev pheej hmoo ntawm kev tawm tsam substrate, kev ncua dosing lossis cov neeg sawv cev neutralization yuav raug qhia. Txoj hauv kev no tiv thaiv kev pickling ntau dhau thiab kev pickling tsis txaus, tiv thaiv kev ruaj khov ntawm cov ntawv substrate thiab ua kom ntseeg tau tias cov txheej txheem parameter stabilization thoob plaws hauv hydrochloric acid pickling hauv kev tsim hlau.
Kev faib cov kua qaub sib npaug yog ua tiav los ntawm kev tswj hwm kev sib xyaw thiab kev saib xyuas lub sijhawm tiag tiag, txo qhov kev pheej hmoo ntawm thaj chaw pickling ntau dhau lossis tsis tau kho. Cov txheej txheem tsis siv neeg teb sai sai rau kev hloov pauv ntawm kev hloov pauv ntawm qhov ceev ntawm strip, load, lossis cov xwm txheej upstream steel, tswj cov concentration ruaj khov tseem ceeb rau kev tiv thaiv strip substrate. Cov txheej txheem kaw-loop no ua haujlwm ua ke nrog cov sensors inline rau pH, kub, thiab cov ntsiab lus hlau. Cov ntaub ntawv pub dawb tiag tiag no ua rau muaj kev tswj hwm cov txheej txheem zoo, tiv thaiv kev tsis sib xws ntawm cov pawg, thiab txhawb nqa kev rov ua dua siab hauv cov txiaj ntsig pickling.
Cov Txiaj Ntsig thiab Kev Tsim Tus Nqi
Kev tswj hwm qhov concentration hauv acid pickling coj cov txiaj ntsig zoo rau kev ua haujlwm, kev lag luam, thiab ib puag ncig.
Kev tswj hwm meej siv kev tswj hwm cov txheej txheem kaw-voj thiab kev ntsuas cov kua qaub hauv kab txo cov kev siv kua qaub los ntawm kev txwv cov kua qaub ntau dhau thiab them rau qhov poob qis raws li qhov xav tau. Coriolis ntws meters, cov txheej txheem ua kom tsis siv neeg, thiab cov cuab yeej zoo li Lonnmeter ua kom cov kua qaub rov qab zoo tshaj plaws, txo qhov zaus ntawm kev rov ua dua tshiab thiab txuas ntxiv lub neej siv ntawm lub pas dej pickling. Qhov no ua rau muaj kev siv kua qaub hydrochloric tsawg dua thiab txo qis cov kua qaub pov tseg, uas txhais tau tias txo cov nqi ua haujlwm thiab txo qis qhov hnyav ntawm ib puag ncig, suav nrog cov khib nyiab txaus ntshai tsawg dua uas xav tau kev kho lossis pov tseg.
Kev tswj cov kua qaub kom ruaj khov muaj feem cuam tshuam ncaj qha rau qhov zoo ntawm qhov chaw thiab cov txiaj ntsig. Cov txheej txheem tawm tswv yim tsis siv neeg tswj cov kua qaub kom nyob rau hauv lub qhov rais zoo tshaj plaws rau kev tshem tawm oxide yam tsis muaj kev cuam tshuam ntau dhau. Qhov no txhais tau tias txo qhov tshwm sim ntawm qhov tsis zoo, kev tawg ntawm lub kauj, lossis qhov tiav ntawm qhov chaw tsis sib xws - cov yam uas cuam tshuam rau ob qho tib si zoo tam sim ntawd thiab kev tiv thaiv xeb mus sij hawm ntev. Cov txheej txheem sib xws ua tiav los ntawm kev tswj hwm lub voj voog kaw ua rau muaj kev ua haujlwm ntau dua thiab txo cov nqi tsis lees txais ntawm cov khoom tiav.
Kev siv cov kua qaub zoo tshaj plaws kuj coj tau txiaj ntsig zoo dua - txo cov xwm txheej rov ua dua tshiab (lossis rov ua dua tshiab) txo cov sijhawm tsis ua haujlwm ntawm cov nroj tsuag, kev siv hluav taws xob, thiab kev tso pa phem. Kev ua raws li ib puag ncig tau zoo dua los ntawm kev txo cov kua qaub tawm thiab txo cov txheej txheem volatilization poob. Cov txiaj ntsig sib xyaw ua ke qhov twg cov txheej txheem rov ua dua tshiab lossis rov qab tau koom ua ke, vim tias kev ua haujlwm ruaj khov txo qhov ntim thiab qhov sib txawv ntawm cov kwj dej uas xav tau kev rov ua dua tshiab, ua rau cov kev pib ua kom ruaj khov no ua haujlwm tau zoo dua.
Kev saib xyuas tiag tiag thiab kev kho qhov kaw-voj yog qhov zoo tshaj plaws hauv chav kawm rau kev tswj cov ntsuas ntws hauv cov txheej txheem pickling. Kev siv tuaj yeem ua rau muaj kev rov qab sai sai los ntawm kev txo qis kev siv kua qaub, txo cov khib nyiab, txhim kho cov txiaj ntsig, thiab ua raws li kev cai lij choj ruaj khov. Cov txiaj ntsig no tau lees paub hauv kev siv hauv kev lag luam, nrog rau kev txo qis kev siv kua qaub thiab kev ruaj khov zoo dua ntawm kev ua haujlwm thiab qhov zoo ntawm cov khoom kawg.
Cov Kev Xyaum Zoo Tshaj Plaws rau Kev Ua Haujlwm ntawm Kab Acid Pickling
Kev Saib Xyuas Tsis Tu Ncua thiab Kev Tswj Xyuas Kev Ntsuas
Kev tswj hwm zoo ntawm cov txheej txheem pickling hydrochloric acid rau cov ntawv kub dov pib nrog kev ntsuas qhov concentration acid kom raug, lub sijhawm tiag tiag. Cov ntsuas concentration inline—xws li Coriolis flow meters, fork concentration meters, thiab Lonnmeter automatic acid concentration meters—yuav tsum tau teeb tsa ncaj qha rau hauv txhua lub tank pickling thiab ntawm cov ntsiab lus tseem ceeb. Kev tso chaw sensor zoo ua kom ntseeg tau tias muaj kev kuaj cov kua qaub hauv thaj chaw muaj kev kub ntxhov siab lossis ntws tas li, txo cov cheeb tsam tuag thiab qhov yuam kev vim muaj kev hloov pauv hauv zos.
Kev ntsuas cov sensors tsis tu ncua yog qhov yuav tsum tau ua. Cov voj voog ntsuas nyob ntawm seb cov kua qaub ntau npaum li cas thiab cov lus qhia ntawm cov chaw tsim khoom tab sis yuav tsum tshwm sim tsawg kawg yog peb lub hlis lossis tom qab kev saib xyuas tas sijhawm. Nws yog ib qho tseem ceeb uas yuav tsum siv cov qauv ntsuas uas tau teev tseg ua ntej uas phim cov tshuaj lom neeg ntawm cov txheej txheem da dej tiag tiag kom raug. Cov kws tshaj lij yuav tsum sau cov ntaub ntawv ntsuas thiab txheeb xyuas qhov tsis sib xws ntawm sensor kom ntseeg tau tias muaj kev ntseeg siab mus sij hawm ntev.
Ib txoj kev npaj kho kom zoo suav nrog kev tshuaj xyuas raws sijhawm, kev ntxuav kom tshem tawm cov hlau oxide scaling, thiab kev lees paub rau kev ntsuas hauv chaw kuaj. Hloov cov khoom siv sensor uas hnav lawm sai sai kom tiv thaiv kev txav mus los lossis kev ua tsis tiav, tshwj xeeb tshaj yog nyob rau hauv cov chaw muaj xeb ntau uas feem ntau yog cov kab kua qaub hauv kev lag luam.
Kev kuaj xyuas cov kua qaub hauv cov dej da dej tas mus li vam khom kev nyeem ntawv tam sim ntawd los ntawm cov ntsuas concentration tsis siv neeg. Cov software tswj cov txheej txheem siv cov ntaub ntawv no los tswj cov nqi tsim kua qaub. Piv txwv li, kev koom ua ke ntawm Lonnmeter cov ntsuas concentration tsis siv neeg ua rau muaj kev saib xyuas HCl concentration tiag tiag, tshem tawm kev kwv yees thiab txo qhov qeeb uas cuam tshuam nrog kev titration tes. Kev tswj cov txheej txheem kaw-loop hauv kev pickling kua qaub txuas cov kev ntsuas no nrog cov twj dosing, ua kom zoo dua cov kua qaub thiab txo qis kev siv.
Kev tswj kom muaj qhov concentration ruaj khov ncaj qha tiv thaiv kev sib xyaw ntau dhau - uas ua rau cov hlau poob ntau dhau thiab siv cov kua qaub ntau dhau - thiab kev sib xyaw tsawg dhau, uas tso cov seem thiab ua rau qhov zoo ntawm qhov chaw puas tsuaj. Cov chaw teeb tsa rau cov kua qaub concentration yuav tsum tau hloov kho raws li cov substrate, kub, thiab qhov ceev ntawm kab. Cov txheej txheem zoo li kev ua kua qaub tsis siv neeg vam khom cov tswv yim no rau kev ntsuas sai thiab raug.
Teeb tsa lub tswb ceeb toom thiab cov kab ke sib txuas hauv cov txheej txheem DCS lossis PLC kom ua haujlwm tam sim ntawd thaum muaj kev hloov pauv ntawm qhov muaj kua qaub ntau. Cov kev coj ua tseem ceeb suav nrog:
- Teem cov kev ceeb toom qis dua sab nraum cov txheej txheem zoo tshaj plaws rau HCl concentration.
- Txuas txhua lub tswb ceeb toom nrog cov kev ua haujlwm sib txuas xws li kaw qhov kev ntsuas tshuaj tsis siv neeg, txo qhov ceev ntawm kab, lossis kev ntxuav da dej.
- Siv cov qauv kwv yees rau cov lus ceeb toom ua ntej - cov txheej txheem siab heev ua rau muaj kev ceeb toom tsis yog rau cov ntawv nyeem tam sim no xwb tab sis kuj rau cov kev kwv yees uas tau nce raws li cov ntaub ntawv sib txawv.
Kev kuaj xyuas thiab sim lub tswb ceeb toom ntau zaus, nrog rau kev cob qhia tus neeg teb xov tooj kom zoo, ua kom ntseeg tau tias cov txheej txheem tsis sib xws raug kuaj pom thiab kho ua ntej cuam tshuam rau qhov zoo ntawm cov khoom lossis kev nyab xeeb ntawm cov khoom siv.
Kev Nyab Xeeb thiab Kev Pov Hwm Ib puag ncig
Kev nyab xeeb ntawm ib puag ncig thiab cov neeg ua haujlwm xav tau kev sib koom ua ke ntawm cov kab pickling acid nrog rau kev txo qis kev tso pa tawm thiab cov txheej txheem rov ua dua acid. Kev saib xyuas cov kua qaub hauv kab ua lub luag haujlwm tseem ceeb hauv kev ruaj khov ntawm cov txheej txheem, cuam tshuam ncaj qha rau kev tsim cov pa thiab cov khib nyiab.
Cov kab pickling yuav tsum txuas cov ntaub ntawv concentration tiag tiag los ntawm cov tshuab tswj kev ntsuas concentration nrog cov kev tswj hwm kev txo qis pa phem, xws li lub hau rho tawm, lub hau npog, thiab cov tshuaj ntxiv rau kev tswj cov pa phem. Thaum cov ntsuas acid concentration pom kev txav mus rau qhov chaw teeb tsa siab, kev siv tshuab yuav tsum ua haujlwm rau cov tshuab tswj cov pa phem lossis kho qhov cua kom haum rau qhov ntawd kom txo qis kev tso pa hydrochloric acid.
Txuas cov kab pickling nrog cov chav ua kua qaub rov ua dua tshiab, xws li pyrohydrolysis lossis cov tshuaj reactors txaj dej. Cov ntaub ntawv concentration inline yuav tsum ua rau muaj kev rho tawm kua qaub thiab kev kho cov kua qaub rov ua dua tshiab hauv lub voj voog kaw, tswj cov khoom sib xyaw thaum ua kom muaj kev pov tseg tsawg kawg nkaus thiab kev siv zog. Qhov no tsis yog tsuas yog txhawb nqa cov hom phiaj ib puag ncig xwb tab sis kuj muab cov cib fim rau kev txo qis kev siv kua qaub ncaj qha hauv kev pickling hlau los ntawm kev ua kom muaj kev ua tiav raws li qhov xav tau.
Cov tshuaj lom neeg seem raug tswj tau zoo tshaj plaws los ntawm kev saib xyuas da dej hauv online thiab kev tso dej tawm tsis tu ncua. Tswj kom muaj kev soj ntsuam pH thiab cov kua qaub ntawm txhua qhov chaw tso pov tseg kom ntseeg tau tias ua raws li txoj cai.
Cov kev tiv thaiv suav nrog:
- Kev tshuaj xyuas thiab kev saib xyuas tsis tu ncua ntawm cov khoom siv tua thiab txo cov pa phem.
- Kev kuaj xyuas kev ruaj khov ntawm lub kaw lus raws sijhawm los nrhiav qhov xau - qhov concentration inline lossis pH nce siab feem ntau qhia txog kev poob kua qaub uas tsis xav tau.
- Cov txheej txheem kaw thiab sib txuas tsis siv neeg thaum muaj xwm txheej ceeb toom tshwm sim, txo qis kev tso tawm ib puag ncig thiab kev raug mob hauv chaw ua haujlwm.
- Kev cob qhia cov neeg ua haujlwm txog cov txheej txheem thaum muaj xwm txheej ceev, txhawb nqa los ntawm kev cob qhia tsis tu ncua txog kev lees paub lub kaw lus.
Kev ruaj khov ntawm cov txheej txheem ua haujlwm kom raug thiab sib xyaw ua ke—siv cov cuab yeej zoo li Lonnmeter thiab kev saib xyuas lub sijhawm tiag tiag— coj kev txhim kho uas ntsuas tau rau kev tswj hwm qhov concentration hauv kev pickling kua qaub, tiv thaiv ob qho tib si zoo ntawm cov khoom thiab ib puag ncig.
Cov Txheej Txheem Ua Hlau Kub Dov
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Cov txheej txheem ntsuas kev ntsuas concentration inline siab heev, xws li cov ntsuas concentration tsis siv neeg—suav nrog Lonnmeter systems—tau hloov pauv qhovkua qaub hydrochloricCov txheej txheem pickling rau cov hlau kub dov thiab lwm cov hlau substrates. Los ntawm kev muab kev saib xyuas tas mus li ntawm cov kua qaub concentration thiab cov ntsev hlau, cov cuab yeej no tshem tawm kev kuaj tes thiab kev ncua sijhawm hauv chaw kuaj mob, ncaj qha txhim kho kev nyab xeeb thiab kev ntseeg siab ntawm cov txheej txheem. Lawv cov qauv tsim ruaj khov, tsis muaj kev saib xyuas siv cov khoom siv tiv taus corrosion haum rau cov chaw ua haujlwm hnyav, txo cov neeg ua haujlwm raug rau cov tshuaj lom neeg thiab txo qis kev pheej hmoo thaum lub sijhawm ua haujlwm niaj hnub. Cov kab ke inline concentration muab cov lus teb tam sim ntawd los ntawm cov zis digital, ua rau kev txheeb xyuas sai ntawm kev hloov pauv thiab txhawb nqa ergonomic, kev ua haujlwm txo qis kev pheej hmoo.
Kev siv tshuab kaw-loop siv cov txheej txheem ntsuas no, txuas lawv rau cov maub los digital thiab cov txheej txheem ua kua qaub tsis siv neeg rau cov kab pickling. Cov qauv no hloov kho qhov concentration ntawm kua qaub raws li cov ntaub ntawv sensor tiag tiag, ua kom ntseeg tau tias cov txheej txheem parameter ruaj khov thiab cov khoom zoo sib xws. Kev siv tshuab ncaj qha txo qhov kev sib xyaw ntau dhau, uas ua rau cov hlau poob ntau dhau, thiab tiv thaiv kev sib xyaw tsawg dhau, uas yuav ua rau muaj qhov tsis zoo ntawm qhov chaw. Los ntawm kev tswj hwm kev tswj hwm concentration ntawm cov ntsuas ntws thiab kev tswj hwm concentration thaum lub sijhawm pickling kua qaub, cov chaw tsim khoom tiv thaiv cov khoom siv strip thiab ua kom zoo dua txhua theem ntawm kev ntxuav tshuaj. Cov txheej txheem no kuj txhawb nqa cov tswv yim txo qis kev siv kua qaub los ntawm kev siv cov kua qaub ntau tshaj plaws, txo cov kua qaub nyoos, thiab txo cov nqi ua haujlwm cuam tshuam nrog kev cuam tshuam lossis rov ua haujlwm.
Kev koom ua ke ntawm cov ntawv thov ntsuas qhov ntsuas concentration thiab Coriolis cov txiaj ntsig ntawm lub ntsuas ntws ua kom ntseeg tau tias qhov kev ua kom zoo tshaj plaws ntawm cov kua qaub nyob thoob plaws hauv cov txheej txheem pickling. Txoj hauv kev tsav tsheb los ntawm cov ntaub ntawv no txhim kho kev ua haujlwm pickling, txhim kho qhov zoo ntawm cov hlau kawg, thiab txhawb nqa kev tsim khoom ruaj khov, muaj peev xwm siab nrog qhov chaw tsawg kawg nkaus. Kev cuam tshuam rau ib puag ncig raug txo qis ntxiv los ntawm cov thev naus laus zis kho cov kua qaub kaw, uas rov ua dua cov kua qaub hydrochloric siv thiab rov qab tau dej, txo qis kev tsim cov khib nyiab phom sij thiab txhawb nqa kev ua raws li txoj cai. Lub sijhawm tiag tiag, kev saib xyuas thiab kev tswj hwm tsis siv neeg ua rau cov neeg tsim khoom hlau ua tau raws li cov qauv nruj rau ob qho tib si kev ruaj khov thiab cov hlau xa tawm.
Hauv kev xaus lus, kev siv cov cuab yeej ntsuas acid concentration siab heev, xws li Lonnmeter—uas koom ua ke rau hauv cov txheej txheem tswj cov txheej txheem kaw-loop—ua rau muaj kev ntseeg siab, kev sib xws ntawm cov khoom lag luam, thiab kev nce qib ntawm kev nyab xeeb thiab kev siv nyiaj tsawg rau cov txheej txheem pickling hydrochloric acid hauv kev tsim hlau. Cov kev tsim kho tshiab no ua rau muaj kev ruaj khov thiab tswj tau zoo ntawm cov hlau thaum txo qis kev cuam tshuam rau ib puag ncig thiab kev pov tseg cov peev txheej.
Cov Lus Nug Feem Ntau
Lub luag haujlwm ntawm cov kua qaub kev tsom mus rau'meter' ua si hauv cov txheej txheem pickling hydrochloric acid?
Muaj ib lub ntsuas acid concentration uas tau teeb tsa rau hauv lub dab dej pickling kom ntsuas tau cov hydrochloric acid concentration tiag tiag thiab tas mus li. Qhov kev saib xyuas tam sim no ua rau cov neeg ua haujlwm tswj tau cov acid concentration zoo tshaj plaws thoob plaws hauv cov txheej txheem pickling acid rau cov hlau kub dov. Cov ntaub ntawv tas mus li txo qhov kev cia siab rau kev kuaj tes, uas feem ntau raug kev ncua sijhawm thiab kev ua yuam kev ntawm tib neeg. Los ntawm kev tso cai rau kev hloov kho tam sim ntawd rau kev ntsuas acid, lub ntsuas pab tiv thaiv ob qho tib si over-pickling-uas tuaj yeem ua rau hlau poob thiab puas tsuaj rau saum npoo-thiab under-pickling, uas ua rau tshem tawm cov oxide scale tsis tiav thiab cov qhov tsis zoo ntawm saum npoo. Txoj hauv kev no txhawb nqa cov txheej txheem ruaj khov, ua kom lub neej da dej ntev dua, thiab txo qis kev siv acid, ua rau muaj kev pov tseg tsawg dua thiab kev tiv thaiv cov khoom siv strip substrate zoo dua.
Lub Coriolis flow meter ua li cas thiaj txhim kho kev tswj hwm hydrochloric acid pickling?
Lub Coriolis flow meter rau kev ntsuas concentration muab qhov tseeb, tib lub sijhawm nyeem ob qho tib si tus nqi ntws thiab acid concentration hauv kab pickling. Cov meters no tshem tawm cov kev ua yuam kev kuaj ib txwm los ntawm kev ntsuas acid concentration tas li thiab ncaj qha thaum cov kua dej ntws los ntawm lub kaw lus. Lawv qhov tseeb siab txhawb nqa kev hloov kho tsis siv neeg rau acid dosing hauv cov txheej txheem tswj hwm kaw-loop. Thaum concentration hloov pauv - vim yog hlau yaj lossis acid depletion - lub Coriolis meter tam sim ntawd ceeb toom rau lub kaw lus tswj hwm, uas tuaj yeem nce lossis txo cov acid ua raws li. Qhov no ua rau cov txheej txheem pickling nyob rau hauv qhov ntau zoo tagnrho, txhim kho pickling efficiency, txo cov acid pov tseg, thiab xyuas kom meej tias zoo sib xws thaum lub sijhawm hydrochloric acid pickling hauv kev tsim hlau.
Vim li cas kev tswj hwm qhov concentration thiaj li tseem ceeb hauv kev ua kua qaub ntawm cov ntawv kub dov?
Kev tswj qhov concentration kom raug hauv cov txheej txheem pickling hydrochloric acid yog qhov tseem ceeb heev rau kev ua tiav kev tshem tawm cov oxide scale yam tsis ua rau cov hlau substrate puas tsuaj. Thaum cov acid concentration qis dhau, kev tshem tawm cov scale qeeb qeeb, ua rau cov txheej txheem pickling tsis zoo thiab cov oxide seem. Thaum cov acid muaj zog dhau, nws muaj kev pheej hmoo ntawm kev txiav lossis ua rau cov hlau nto ntxhib, ua rau cov nqi nce ntxiv thiab ua rau muaj qhov tsis zoo ntawm kev ua tiav. Cov txheej txheem ntsuas concentration tsis siv neeg, xws li kev siv Lonnmeter automatic acid concentration meters, khaws cov acid concentration hauv cov kev ntsuas zoo tshaj plaws. Qhov no tsis yog tsuas yog ua kom muaj kev tiv thaiv substrate ntau tshaj plaws tab sis kuj txo cov kev siv acid ntau dhau thiab cov nqi ua haujlwm. Kev tswj hwm kom zoo kuj txhawb nqa kev ua raws li cov qauv ib puag ncig los ntawm kev tswj cov pa phem acid thiab txo cov khib nyiab txaus ntshai.
Cov txiaj ntsig ntawm kev ua kom cov kua qaub tsis siv neeg hauv cov kab pickling yog dab tsi?
Cov txheej txheem ua kua qaub tsis siv neeg rau cov kab pickling sib xyaw nrog cov ntsuas concentration hauv kab kom kho qhov kev ntsuas kua qaub raws li qhov xav tau tiag tiag. Qhov kev ua haujlwm tsis siv neeg no txo lossis tshem tawm kev cuam tshuam tes, ua kom cov txheej txheem ruaj khov xws li lub zog kua qaub, qhov kub ntawm da dej, thiab cov ntsiab lus hlau ion. Cov txiaj ntsig suav nrog:
- Txo kev siv cov kua qaub, vim tias qhov kev ntsuas sib xws nrog cov txheej txheem xav tau tiag tiag thiab rov ua dua cov kua qaub uas tau rov qab los.
- Txo cov khib nyiab thiab ua raws li kev cai ib puag ncig zoo dua vim txo qis kev siv tshuaj ntau dhau.
- Kev ruaj khov ntawm cov txheej txheem, uas ua rau cov khoom zoo dua thiab txo qhov zaus ntawm kev pov tseg hauv da dej.
- Kev nyab xeeb zoo dua rau cov neeg teb xov tooj uas muaj kev phom sij tsawg dua rau cov chaw muaj kua qaub.
Cov txheej txheem ua kua qaub tsis siv neeg kuj tseem ua rau muaj kev hloov pauv sai dua rau cov nqi tsim khoom sib txawv, ua kom cov txheej txheem pickling kua qaub tseem zoo tshaj plaws rau cov ntawv kub dov txhua lub sijhawm.
Tau inline fork kev tsom mus raucov meters pab tiv thaiv kom tsis txhob muaj pickling ntau dhau?
Cov ntsuas inline fork concentration muab kev saib xyuas tas mus li ntawm lub zog acid, txhawb kev ntes tam sim ntawd yog tias qhov concentration hydrochloric acid poob qis dua qhov teev tseg. Qhov kev ntes tam sim ntawd ua rau nws muaj peev xwm rau lub kaw lus kom ua rau cov kua qaub ua kom tiav lossis dilution ua haujlwm tau. Yog li ntawd, cov ntawv thov ntsuas concentration fork hauv acid pickling ncaj qha txo qhov kev pheej hmoo ntawm kev ntau dhau-ib qho mob uas poob hlau thiab kev siv acid ntau dhau tshwm sim vim yog lub sijhawm ntev lossis kev ua haujlwm hnyav dhau. Los ntawm kev ua kom muaj kev tswj hwm kaw-lub voj voog, cov ntsuas no txo qhov kev pheej hmoo ntawm kev ua yuam kev ntawm tus neeg teb xov tooj thiab tswj cov txheej txheem acid pickling rau cov ntawv kub dov hauv qhov zoo thiab ua haujlwm tau zoo. Qhov no ua rau kev siv tshuaj zoo tshaj plaws, kev txuag ntawm kev ncaj ncees ntawm cov khoom siv, thiab kev ua haujlwm ruaj khov dua.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-01-2025
