Hauv kev tsim khoom lag luam, cov kav dej zoo li "cov hlab ntsha" ntawm cov khoom siv, lub luag haujlwm rau kev thauj cov khoom "kub kub" xws li xuab zeb, xuab zeb, thiab cov pa roj kub siab. Dhau sijhawm, cov phab ntsa sab hauv ntawm cov kav dej ib txwm yooj yim hnav thiab tej zaum yuav xau, xav tau kev saib xyuas thiab hloov pauv ntau zaus, thiab kuj tseem yuav ncua kev nce qib ntawm kev tsim khoom. Qhov tseeb, ntxiv ib txheej ntawm "khaub ncaws tiv thaiv tshwj xeeb" rau cov kav dej tuaj yeem daws qhov teeb meem, uas yogsilicon carbide yeeb nkab txheejpeb yuav tham txog hnub no.
Tej zaum yuav muaj ib txhia neeg nug tias, cov khoom siv silicon carbide ceramics uas zoo li "hardcore" los qhov twg? Yog hais yooj yim xwb, nws yog cov khoom siv ceramic ua los ntawm cov khoom tawv xws li silicon carbide los ntawm cov txheej txheem tshwj xeeb, thiab nws qhov tshwj xeeb tshaj plaws yog "ruaj khov": nws qhov tawv yog qhov thib ob tsuas yog pob zeb diamond, thiab nws tuaj yeem tiv taus kev yaig ntawm cov xuab zeb thiab cov xuab zeb thiab cov khoom siv corrosive, tsis zoo li cov hlau liners uas yooj yim xeb thiab hnav, thiab nws kuj tiv taus kub thiab kev cuam tshuam ntau dua li cov yas liners.
Lub hauv paus ntawm kev txhim kho silicon carbide hauv cov kav dej yog ntxiv "kev thaiv ruaj khov" rau phab ntsa sab hauv. Thaum txhim kho, tsis tas yuav siv zog ntau. Feem ntau, cov khoom siv ceramic prefabricated silicon carbide raug sib txuas rau phab ntsa sab hauv ntawm cov kav dej nrog cov nplaum tshwj xeeb los tsim ib txheej tiv thaiv tiav. Txheej 'kev thaiv' no yuav tsis zoo li tuab, tab sis nws txoj haujlwm yog qhov tshwj xeeb tshaj yog:
Ua ntej, nws yog 'kev tiv thaiv kev hnav tag nrho'. Txawm hais tias nws yog kev thauj cov khoom me me nrog cov npoo ntse lossis cov dej ntws ceev ceev, qhov chaw ntawm silicon carbide lining yog qhov du tshwj xeeb. Thaum cov khoom hla dhau, qhov kev sib txhuam me me, uas tsis tsuas yog tsis ua rau lub lining puas tsuaj, tab sis kuj txo qhov kev tiv thaiv thaum thauj khoom, ua rau kev thauj mus los du dua. Cov kav dej ib txwm yuav xav tau kev saib xyuas tom qab ib nrab xyoo ntawm kev hnav thiab tsim kua muag, thaum cov kav dej nrog silicon carbide lining tuaj yeem ntev lawv lub neej kev pabcuam, txo qhov teeb meem thiab tus nqi ntawm kev hloov cov kav dej rov ua dua.
Tom qab ntawd muaj "kev tiv thaiv corrosion thiab kub siab tiv thaiv ob kab". Hauv ntau qhov xwm txheej kev lag luam, cov ntaub ntawv xa khoom nqa cov khoom corrosive xws li acid thiab alkali, thiab qhov kub tsis qis. Cov linings ib txwm yog corroded thiab tawg, lossis deformed los ntawm kev ci kub siab. Tab sis silicon carbide ceramics lawv tus kheej muaj cov khoom siv tshuaj lom neeg ruaj khov thiab tsis ntshai acid thiab alkali erosion. Txawm tias thaum raug rau qhov kub siab ntawm ntau pua degrees Celsius, lawv tuaj yeem tswj tau daim ntawv ruaj khov, ua rau lawv haum rau kev siv cov kav dej hauv "ib puag ncig hnyav" xws li tshuaj lom neeg, metallurgical, thiab mining.
Lwm qhov tseem ceeb yog "tsis muaj kev txhawj xeeb thiab tsis muaj zog". Cov kav dej uas muaj silicon carbide tsis tas yuav tsum kaw ntau zaus rau kev saib xyuas, thiab kuj yooj yim rau kev saib xyuas - qhov chaw tsis yooj yim rau kev tawg lossis cov khoom dai, thiab tsuas yog xav tau kev ntxuav me ntsis tsis tu ncua. Rau cov lag luam, qhov no txhais tau tias txo qhov kev pheej hmoo ntawm kev cuam tshuam kev tsim khoom thiab txuag ntau tus neeg ua haujlwm saib xyuas thiab cov nqi khoom siv, uas sib npaug rau "kev teeb tsa ib zaug, tsis muaj kev txhawj xeeb mus sij hawm ntev".
Tej zaum ib txhia neeg yuav xav tias lub ntaub sab hauv uas ruaj khov no kim heev? Qhov tseeb, kev xam "tus account ntev" yog qhov tseeb: txawm hais tias tus nqi pib ntawm cov ntaub sab hauv ib txwm qis, nws yuav tsum tau hloov txhua peb mus rau tsib lub hlis; Kev nqis peev thawj zaug rau cov ntaub sab hauv silicon carbide yog me ntsis siab dua, tab sis nws tuaj yeem siv tau ntau xyoo, thiab tus nqi nruab nrab ib hnub yog qhov qis dua. Ntxiv mus, nws tuaj yeem zam kev poob ntau lawm los ntawm kev puas tsuaj ntawm cov kav dej, thiab tus nqi-zoo yog qhov tseeb siab heev.
Niaj hnub nim no, cov kav dej silicon carbide tau maj mam dhau los ua "kev daws teeb meem zoo tshaj plaws" rau kev tiv thaiv cov kav dej hauv kev lag luam, los ntawm cov tailings xa cov kav dej hauv cov mines, mus rau cov kav dej corrosive hauv kev lag luam tshuaj lom neeg, mus rau cov kav dej roj kub siab hauv kev lag luam fais fab, nws qhov muaj nyob tuaj yeem pom. Hais yooj yim, nws zoo li "tus neeg saib xyuas tus kheej" ntawm cov kav dej, ntsiag to tiv thaiv kev ua haujlwm zoo ntawm kev tsim khoom lag luam nrog nws tus kheej qhov nyuaj thiab kev ua haujlwm ntev - qhov no kuj yog vim li cas ntau thiab ntau lub tuam txhab txaus siab los nruab cov kav dej nrog "khaub ncaws tiv thaiv tshwj xeeb" no.
Lub sijhawm tshaj tawm: Lub Kaum Hli-22-2025