1.Dab tsi yog cov tshuaj lom neeg tseem ceeb hauv vuam fumes?
Zinc oxide hais
Qhov no yog ib tug culprit loj ua rau mob hnyav. Kev nqus cov pa ntau ntawm cov tshiab tsim, me me zinc oxide hais tuaj yeem ua rau muaj kab mob ua haujlwm hnyav hu ua "metal fume fever."
Lwm yam hlau pa taws thiab oxides
Dhau li zinc, vuam fumes kuj tseem muaj oxides ntawm hlau xws li hlau, manganese, chromium, thiab npib tsib xee los ntawm cov hlau substrate.
Manganese, tshwj xeeb tshaj yog, tuaj yeem ua rau muaj kev puas tsuaj rau lub paj hlwb nrog kev ua pa ntev -, ua rau cov tsos mob zoo ib yam li tus kab mob Parkinson (lub npe hu ua "manganese lom").
Gases generated thaum lub sij hawm vuam txheej txheem:
Ozone: Tsim los ntawm cov tshuaj tiv thaiv ntawm ultraviolet hluav taws xob los ntawm hluav taws xob arc nrog oxygen hauv huab cua; nws heev irritates lub pa ib ntsuj av.
Cov pa roj carbon monoxide: tshwj xeeb tshaj yog nyob rau hauv cov txheej txheem xws li MAG welding (magnetic arc vuam), nws yog tsim los ntawm decomposition los yog tsis tiav combustion ntawm shielding gases (xws li CO₂).
2.Dab tsi yog cov tsos mob ntawm tus mob lom?
Hlau fume fever yog feem ntau mob lom tshuaj lom tom qab vuam galvanized qhov chaw. Nws cov tsos mob feem ntau tshwm sim 4-12 teev tom qab kis tau (tshwj xeeb yog yav tav su lossis yav tsaus ntuj tom qab tawm haujlwm):
Lub saj qab zib yog xim hlau nyob rau hauv lub qhov ncauj: Qhov no yog thawj kos npe rau.
Qhuav caj pas, khaus, hnoos.
Kev qaug zog, mob leeg thiab mob pob qij txha: zoo li tam sim ntawd, mob hnyav heev.
Mob taub hau, ua daus no, ua npaws: lub cev kub tuaj yeem nce mus txog 38-39℃lossis siab dua.
xeev siab, ntuav.
3.Dab tsi yog qhov tshwm sim ntawm cov khoom siv vuam galvanized rau lub sijhawm txuas ntxiv yam tsis muaj kev tiv thaiv txaus?
Cov kab mob ua pa ntev: xws li bronchitis, mob ntsws, thiab lub ntsws ua haujlwm tsis zoo.
Kev puas tsuaj rau lub paj hlwb: feem ntau cuam tshuam nrog manganese tsub zuj zuj.
Muaj kev pheej hmoo mob qog noj ntshav: Raws li Lub Chaw Haujlwm Saib Xyuas Kev Tshawb Fawb Thoob Ntiaj Teb rau Cancer (IARC) kev faib tawm, cov pa hluav taws xob tau muab cais ua pawg 1 carcinogens, txhais tau tias lawv yog "carcinogenic rau tib neeg."
4.Dab tsi yog engineering thiab technical tswj yuav tsum tau ua?
Kev tso pa tawm hauv zos: Qhov no yog qhov kev ntsuas tseem ceeb tshaj plaws thiab muaj txiaj ntsig zoo. Siv lub vuam fume extractor (fume extractor caj npab), muab qhov chaw nqus nqus kom ze li sai tau rau qhov chaw vuam (feem ntau nyob rau hauv 15-30 cm) txhawm rau ntes thiab lim cov pa luam yeeb raws li nws tsim.
Kev tso cua dav dav: Ua kom muaj qhov cua zoo thoob plaws hauv lub rhiav kom dilute qhov concentration ntawm cov pa taws hauv huab cua.
5.Qhov khoom siv tiv thaiv tus kheej yog dab tsi?
Kev tiv thaiv ua pa: Hauv cov xwm txheej uas qhov cua tsis tuaj yeem tshem tawm cov pa tawm tag nrho (piv txwv li, ua haujlwm ntawm cov khoom loj), yuav tsum tau hnav lub tshuab ua pa tshwj xeeb.
Qhov xav tau: Cov cua muaj zog-purifying respirator (PEPR), uas muab cov huab cua huv dua thiab kev nplij siab zoo dua.
Kev xaiv thib ob: qib siab dua- lub npog ntsej muag plua plav (piv txwv li, ntsib NIOSH N95, R95, lossis P95 tus qauv, lossis tus qauv Suav KN95). Ordinary gauze qhov ncauj qhov ntswg tsis muaj txiaj ntsig.
Tiv thaiv khaub ncaws, hnab looj tes, thiab vuam ntsej muag shields: Tiv thaiv daim tawv nqaij tiv thaiv thiab arc hluav taws xob.