Kev ntsuas cov kua qaub, xws li cov kua qaub, alkalis, thiab cov tshuaj lom neeg, ua rau muaj kev cov nyom loj hauv cov txheej txheem kev lag luam vim lawv qhov xwm txheej puas tsuaj rau cov khoom siv. Cov ntsuas hluav taws xob electromagnetic (EMFs), raws li Faraday txoj cai electromagnetic induction, tau tshwm sim ua qhov kev daws teeb meem txhim khu kev qha rau qhov xwm txheej no. Lawv cov qauv ntsuas tsis cuam tshuam, kev sib raug zoo nrog ntau yam corrosive media, thiab kev ntsuas qhov tseeb ua rau lawv tsis tseem ceeb hauv kev lag luam uas muaj cov chaw muaj tshuaj lom neeg hnyav. Tsab xov xwm no tshawb nrhiav cov txiaj ntsig tshwj xeeb ntawm EMFs hauv kev ntsuas kua qaub, lawv cov ntawv thov ib txwm muaj thoob plaws cov lag luam tseem ceeb, thiab kev txiav txim siab tseem ceeb rau kev ua tau zoo tshaj plaws.
Qhov zoo ntawm cov ntsuas hluav taws xob electromagnetic hauv kev ntsuas kua corrosive yog lawv cov qauv tsim thiab cov khoom siv hloov kho tau. Tsis zoo li cov ntsuas dej ib txwm muaj nrog cov khoom sib xyaw uas yooj yim rau xeb, EMFs muaj lub sensor nrog lub hauv paus uas cais cov khoom ntsuas los ntawm cov khoom siv corrosive. Cov ntaub ntawv hauv paus feem ntau suav nrog PTFE (polytetrafluoroethylene), PFA (perfluoroalkoxy alkane), thiab roj hmab, txhua yam uas ua rau muaj kev tiv thaiv zoo rau cov kua qaub, alkalis, thiab cov kuab tshuaj organic. Tsis tas li ntawd, cov electrodes ntawm EMFs tuaj yeem ua los ntawm cov hlau tsis xeb xws li Hastelloy, titanium, lossis tantalum, ua kom muaj kev ruaj khov ntev txawm tias nyob hauv cov kua dej uas muaj zog heev. Txoj kev ntsuas tsis sib cuag no kuj tshem tawm qhov poob siab thiab kev pheej hmoo ntawm kev txhaws, uas yog qhov tseem ceeb rau kev tswj hwm kev ua haujlwm hauv kev lag luam tas mus li.
Kev lag luam tshuaj lom neeg yog qhov chaw siv tseem ceeb rau EMFs hauv kev ntsuas cov kua corrosive. Hauv cov txheej txheem tsim tshuaj lom neeg, ntau yam corrosive media xws li sulfuric acid, hydrochloric acid, thiab sodium hydroxide xav tau kev tswj hwm qhov ntws kom meej kom ntseeg tau tias muaj txiaj ntsig zoo thiab cov khoom zoo. Piv txwv li, hauv kev tsim cov chiv, EMFs nrog PTFE linings thiab Hastelloy electrodes ntsuas qhov ntws ntawm cov concentrated sulfuric acid, ua rau muaj kev ntsuas nrog ammonia. Hauv kev tsim tshuaj tua kab, lawv saib xyuas qhov ntws ntawm cov kuab tshuaj corrosive organic, ua kom muaj kev nyab xeeb thiab ruaj khov ntawm cov txheej txheem tshuaj tiv thaiv. Lub peev xwm ntawm EMFs los ntsuas cov kua corrosive conductive nrog qhov tseeb siab (feem ntau ± 0.5% ntawm tus nqi ntsuas) ua rau lawv yog ib qho tseem ceeb hauv kev ua haujlwm tshuaj lom neeg.
Kev lag luam mining thiab metallurgy kuj vam khom EMFs rau kev ntsuas cov kua corrosive. Hauv cov txheej txheem leaching ntawm cov hlau tsis yog ferrous (xws li tooj liab, zinc, thiab kub), cov neeg sawv cev corrosive leaching (piv txwv li, sulfuric acid kua, cyanide kua) yog siv los rho tawm cov hlau los ntawm cov ores. EMFs yog siv los ntsuas qhov ntws ntawm cov neeg sawv cev leaching no, xyuas kom meej tias sib xyaw nrog cov ores thiab ua kom zoo dua leaching efficiency. Hauv kev ua hlau, lawv kuj saib xyuas qhov ntws ntawm cov kua txias corrosive thiab cov kua qaub pov tseg, pab txo kev siv hluav taws xob thiab ua tau raws li cov qauv kev tso tawm ib puag ncig. Cov qauv ruaj khov ntawm EMFs tso cai rau lawv kom tiv taus qhov kub thiab txias siab thiab siab siab uas feem ntau ntsib hauv kev ua haujlwm mining thiab metallurgy.
Cov chaw kho dej khib nyiab yog lwm qhov xwm txheej tseem ceeb rau kev siv. Cov dej khib nyiab hauv kev lag luam feem ntau muaj cov khoom corrosive xws li cov hlau hnyav ions, acids, thiab alkalis, uas xav tau kev ntsuas qhov ntws kom raug rau kev kho kom zoo. EMFs ntsuas qhov ntws ntawm cov dej khib nyiab corrosive hauv cov txheej txheem sau thiab kho, ua kom muaj kev tswj hwm cov tshuaj ntxiv (piv txwv li, neutralizers) thiab ua kom ua raws li cov cai tso tawm. Lawv txoj kev tiv thaiv rau fouling thiab corrosion ua kom muaj kev ua haujlwm ruaj khov txawm tias nyob hauv cov chaw muaj dej khib nyiab nyuaj, txo cov nqi kho thiab lub sijhawm tsis ua haujlwm.
Yuav kom ntseeg tau tias EMFs ua tau zoo tshaj plaws hauv kev ntsuas cov kua corrosive, yuav tsum muaj ob peb yam tseem ceeb uas yuav tsum xav txog. Ua ntej, xaiv cov ntaub ntawv hauv ob sab hauv thiab cov khoom siv electrode raws li hom thiab qhov concentration ntawm cov khoom siv corrosive. Qhov thib ob, xyuas kom meej tias cov kua ntsuas muaj conductivity txaus (feem ntau siab dua 5 μS / cm), vim EMFs tsis tuaj yeem ntsuas cov kua tsis conductive. Qhov thib peb, nruab lub 'meter' kom raug kom tsis txhob muaj kev cuam tshuam electromagnetic thiab xyuas kom meej tias muaj qhov chaw ntws ruaj khov. Kev saib xyuas tsis tu ncua, xws li kev kuaj xyuas qhov tseeb ntawm ob sab hauv thiab kev ntxuav cov electrodes, kuj tseem ceeb rau kev ntseeg siab mus sij hawm ntev.
Xaus lus, cov ntsuas hluav taws xob tau dhau los ua qhov kev xaiv zoo tshaj plaws rau kev ntsuas kua corrosive vim lawv cov khoom siv hloov pauv tau, qhov tseeb siab, thiab kev ua haujlwm ruaj khov. Lawv cov ntawv thov dav hauv kev lag luam tshuaj lom neeg, kev khawb av, thiab kev kho dej khib nyiab qhia txog lawv lub luag haujlwm tseem ceeb hauv kev ua kom cov txheej txheem ua haujlwm tau zoo, cov khoom zoo, thiab kev nyab xeeb ib puag ncig. Nrog kev nce qib tas mus li hauv cov khoom siv thev naus laus zis thiab kev tsim qauv sensor, EMFs xav tias yuav muab cov kev daws teeb meem txhim khu kev qha rau cov xwm txheej ntsuas corrosive hnyav dua yav tom ntej.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-09-2025