Klasifikace od St1 do St3 :<\/strong> Tato klasifikace je zalo\u017eena na z\u00e1va\u017enosti v\u00fdbuchu prachu. T\u0159\u00eddy St1 a\u017e St3 p\u0159edstavuj\u00ed rostouc\u00ed stupn\u011b z\u00e1va\u017enosti, p\u0159i\u010dem\u017e St1 je nejm\u00e9n\u011b z\u00e1va\u017en\u00e1 a St3 nejz\u00e1va\u017en\u011bj\u0161\u00ed. <\/p>\n\n<\/p>\n\n
Index KST m\u011b\u0159\u00ed rychlost n\u00e1r\u016fstu v\u00fdbuchov\u00e9ho tlaku<\/strong>. M\u011b\u0159\u00ed se v bar.m\/s. \u010c\u00edm vy\u0161\u0161\u00ed je hodnota Kst, t\u00edm nebezpe\u010dn\u011bj\u0161\u00ed je v\u00fdbuch zp\u016fsoben\u00fd prachem.\n
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Klasifikace ATEX<\/strong>: Klasifikace ATEX vych\u00e1z\u00ed z evropsk\u00fdch sm\u011brnic o v\u00fdbu\u0161n\u00fdch prost\u0159ed\u00edch. Prachy jsou klasifikov\u00e1ny do skupin a z\u00f3n podle sv\u00e9 ho\u0159lavosti a v\u00fdbu\u0161nosti. Mezi skupiny pat\u0159\u00ed neho\u0159lav\u00e9<\/strong> (skupina IIIA), ho\u0159lav\u00e9 (skupina IIIB) a vodiv\u00e9 ho\u0159lav\u00e9 (skupina IIIC). <\/p>\n<\/div>\n\n\n\n\n
Klasifikace NFPA<\/strong>: N\u00e1rodn\u00ed asociace po\u017e\u00e1rn\u00ed ochrany (NFPA) pou\u017e\u00edv\u00e1 k posouzen\u00ed nebezpe\u010d\u00ed v\u00fdbuchu prach\u016f klasifikaci NFPA 499. Prachy se d\u011bl\u00ed na ho\u0159lav\u00e9 (t\u0159\u00eddy II a III) a neho\u0159lav\u00e9 (t\u0159\u00edda IV). Ka\u017ed\u00e1 t\u0159\u00edda se d\u00e1le d\u011bl\u00ed na podt\u0159\u00eddy podle ho\u0159lavosti<\/strong>, z\u00e1paln\u00e9 energie a elektrick\u00e9 vodivosti prachu. <\/p>\n<\/div>\n\n\n\n\n
Hodnocen\u00ed Kst<\/strong>: Hodnocen\u00ed Kst (deflagra\u010dn\u00ed konstanta) se pou\u017e\u00edv\u00e1 k posouzen\u00ed rychlosti \u0161\u00ed\u0159en\u00ed v\u00fdbuch\u016f v prachu. Je zalo\u017eena na maxim\u00e1ln\u00edm tlaku, kter\u00fd vznikne b\u011bhem v\u00fdbuchu. Prachy se klasifikuj\u00ed podle Kst od Kst 0 do Kst 300, co\u017e p\u0159edstavuje rostouc\u00ed stupnici rizika v\u00fdbuchu<\/strong>. <\/p>\n<\/div>\n<\/div>\n\nJe d\u016fle\u017eit\u00e9 zn\u00e1t a pochopit klasifikaci prach\u016f ATEX, aby bylo mo\u017en\u00e9 p\u0159ijmout vhodn\u00e1 bezpe\u010dnostn\u00ed opat\u0159en\u00ed v prost\u0159ed\u00ed, kde se vyskytuj\u00ed. To umo\u017e\u0148uje zav\u00e9st postupy \u0159\u00edzen\u00ed rizik<\/strong> a vybrat vhodn\u00e9 vybaven\u00ed, aby se zabr\u00e1nilo v\u00fdbuch\u016fm a zajistila bezpe\u010dnost pracovn\u00edk\u016f. <\/p>\n\nCharakteristiky ho\u0159lav\u00fdch prach\u016f<\/h2>\n\n Jedn\u00e1 se o ho\u0159lav\u00e9 pevn\u00e9 \u010d\u00e1stice, kter\u00e9 mohou p\u0159i rozpt\u00fdlen\u00ed ve vzduchu vytvo\u0159it potenci\u00e1ln\u011b nebezpe\u010dnou v\u00fdbu\u0161nou sm\u011bs<\/strong>. Tyto prachy \u010dasto vznikaj\u00ed p\u0159i pr\u016fmyslov\u00fdch procesech, jako je manipulace, mlet\u00ed, m\u00edch\u00e1n\u00ed, su\u0161en\u00ed nebo spalov\u00e1n\u00ed pevn\u00fdch materi\u00e1l\u016f. <\/p>\n\nHo\u0159lavost:<\/strong> Prach m\u00e1 schopnost ho\u0159et nebo se vzn\u00edtit, pokud je vystaven zdroji ho\u0159en\u00ed, jako je jiskra, otev\u0159en\u00fd plamen, vysok\u00e1 teplota nebo elektrostatick\u00fd v\u00fdboj<\/strong>.<\/p>\n\nVelikost \u010d\u00e1stic<\/strong>: Prach se m\u016f\u017ee li\u0161it velikost\u00ed \u010d\u00e1stic. Jemn\u011bj\u0161\u00ed \u010d\u00e1stice b\u00fdvaj\u00ed ho\u0159lav\u011bj\u0161\u00ed a mohou p\u0159edstavovat v\u011bt\u0161\u00ed nebezpe\u010d\u00ed v\u00fdbuchu, proto\u017ee maj\u00ed v\u011bt\u0161\u00ed specifick\u00fd povrch, co\u017e podporuje rychlej\u0161\u00ed ho\u0159en\u00ed<\/strong>. <\/p>\n\nKritick\u00e1 koncentrace<\/strong>: Existuje kritick\u00e1 koncentrace ho\u0159lav\u00e9ho prachu ve vzduchu, zn\u00e1m\u00e1 jako doln\u00ed mez v\u00fdbu\u0161nosti (LEL) nebo minim\u00e1ln\u00ed koncentrace v\u00fdbu\u0161nosti (MEC). Pod touto koncentrac\u00ed nen\u00ed sm\u011bs vzduchu a prachu dostate\u010dn\u011b ho\u0159lav\u00e1 na to,<\/strong> aby zp\u016fsobila v\u00fdbuch. P\u0159i p\u0159ekro\u010den\u00ed t\u00e9to koncentrace m\u016f\u017ee v p\u0159\u00edpad\u011b ho\u0159en\u00ed doj\u00edt ke vzniku v\u00fdbu\u0161n\u00e9 sm\u011bsi. <\/p>\n\nCitlivost na aktiva\u010dn\u00ed energii:<\/strong> Ho\u0159lav\u00e9 prachy mohou reagovat na r\u016fzn\u00e9 zdroje aktiva\u010dn\u00ed energie, jako je teplo, elektrick\u00e9 jiskry, elektrostatick\u00e9 v\u00fdboje a hork\u00e9 povrchy. Je d\u016fle\u017eit\u00e9 tyto energie<\/strong> v prostor\u00e1ch, kde se prachy vyskytuj\u00ed, minimalizovat nebo eliminovat<\/strong>, aby se zabr\u00e1nilo riziku v\u00fdbuchu. <\/p>\n\nRychl\u00e9 spalov\u00e1n\u00ed:<\/strong> P\u0159i kontaktu ho\u0159lav\u00e9ho prachu se zdrojem ho\u0159en\u00ed m\u016f\u017ee doj\u00edt k jeho velmi rychl\u00e9mu vzn\u00edcen\u00ed, kter\u00e9 vyvol\u00e1 r\u00e1zovou vlnu a rychl\u00fd n\u00e1r\u016fst tlaku. To m\u016f\u017ee v\u00e9st k prudk\u00e9mu v\u00fdbuchu a zna\u010dn\u00e9mu po\u0161kozen\u00ed<\/strong> za\u0159\u00edzen\u00ed a vybaven\u00ed. <\/p>\n\n\u0160\u00ed\u0159en\u00ed v\u00fdbuchu<\/strong>: Po\u010d\u00e1te\u010dn\u00ed v\u00fdbuch v prostoru s ho\u0159lav\u00fdmi prachy m\u016f\u017ee zp\u016fsobit roz\u0161\u00ed\u0159en\u00ed v\u00fdbuchu do dal\u0161\u00edch prostor, kde jsou p\u0159\u00edtomny sm\u011bsi. To m\u016f\u017ee v\u00e9st k sekund\u00e1rn\u00edm v\u00fdbuch\u016fm, \u010d\u00edm\u017e<\/strong> se zv\u00fd\u0161\u00ed \u0161kody a nebezpe\u010d\u00ed pro pracovn\u00edky. <\/p>\n\nCharakteristiky ho\u0159lav\u00e9ho prachu<\/h2>\n\n Jedn\u00e1 se o pevn\u00e9 \u010d\u00e1stice, kter\u00e9 se<\/strong> po rozpt\u00fdlen\u00ed ve vzduchu mohou vzn\u00edtit a po zap\u00e1len\u00ed ho\u0159et<\/strong>. Tyto prachy mohou poch\u00e1zet z r\u016fzn\u00fdch zdroj\u016f, jako jsou suroviny, hotov\u00e9 v\u00fdrobky, v\u00fdrobn\u00ed procesy nebo \u010dinnosti zahrnuj\u00edc\u00ed manipulaci s pevn\u00fdmi materi\u00e1ly. Zde jsou uvedeny n\u011bkter\u00e9 kl\u00ed\u010dov\u00e9 vlastnosti ho\u0159lav\u00fdch prach\u016f: <\/p>\n\nHo\u0159lavost:<\/strong> Maj\u00ed schopnost ho\u0159et, pokud jsou vystaveny zdroji zap\u00e1len\u00ed, jako je jiskra, otev\u0159en\u00fd plamen, vysok\u00e1 teplota nebo elektrostatick\u00fd v\u00fdboj. Jsou schopnyudr\u017eet ho\u0159lavou reakci <\/strong>, jakmile je p\u0159\u00edtomen dostate\u010dn\u00fd zdroj energie. <\/p>\n\nVelikost \u010d\u00e1stic<\/strong>: \u010c\u00e1stice mohou m\u00edt r\u016fznou velikost. Drobn\u011bj\u0161\u00ed \u010d\u00e1stice maj\u00ed v\u011bt\u0161\u00ed specifick\u00fd povrch, tak\u017ee jsou reaktivn\u011bj\u0161\u00ed a rychleji se vzn\u00edt\u00ed. Velmi jemn\u00fd prach m\u016f\u017ee p\u0159i rozpt\u00fdlen\u00ed ve vzduchu vytv\u00e1\u0159et v\u00fdbu\u0161n\u00e1 oblaka prachu<\/strong>. <\/p>\n\nKoncentrace v\u00fdbu\u0161nosti<\/strong>: Existuje rozmez\u00ed koncentrac\u00ed ho\u0159lav\u00e9ho prachu ve vzduchu, zn\u00e1m\u00e9 jako mez v\u00fdbu\u0161nosti, kdy je sm\u011bs vzduchu a prachu dostate\u010dn\u011b ho\u0159lav\u00e1, aby zp\u016fsobila v\u00fdbuch. Toto rozmez\u00ed zahrnuje doln\u00ed mez v\u00fdbu\u0161nosti <\/strong>(LEL), kter\u00e1 p\u0159edstavuje minim\u00e1ln\u00ed koncentraci prachu pot\u0159ebnou pro vzn\u00edcen\u00ed, a horn\u00ed mez v\u00fdbu\u0161nosti (UEL), kter\u00e1 p\u0159edstavuje maxim\u00e1ln\u00ed koncentraci prachu, ne\u017e se sm\u011bs stane p\u0159\u00edli\u0161 bohatou na ho\u0159en\u00ed. <\/p>\n\nRychl\u00e9 spalov\u00e1n\u00ed :<\/strong> Pokud je ho\u0159lav\u00fd prach vystaven zdroji ho\u0159en\u00ed, m\u016f\u017ee rychle ho\u0159et a uvol\u0148ovat zna\u010dnou energii. To m\u016f\u017ee zp\u016fsobit explozivn\u00ed ho\u0159en\u00ed, jeho\u017e d\u016fsledkem je r\u00e1zov\u00e1 vlna, vysok\u00fd tlak a zna\u010dn\u00e9 \u0161kody na \u017eivotn\u00edm prost\u0159ed\u00ed<\/strong>, infrastruktu\u0159e a lidech v okol\u00ed. <\/p>\n\nCitlivost na zdroje vzn\u00edcen\u00ed<\/strong>: Ho\u0159lav\u00e9 prachy mohou b\u00fdt citliv\u00e9 na r\u016fzn\u00e9 zdroje vzn\u00edcen\u00ed, jako je teplo, elektrick\u00e9 jiskry, hork\u00e9 povrchy, elektrostatick\u00e9 v\u00fdboje a elektrick\u00e9 oblouky. Minimalizace nebo eliminace t\u011bchto potenci\u00e1ln\u00edch mo\u017enost\u00ed vzn\u00edcen\u00ed<\/strong> v prostor\u00e1ch, kde se prachy vyskytuj\u00ed, je nezbytn\u00e1 pro zabr\u00e1n\u011bn\u00ed riziku v\u00fdbuchu. <\/p>\n\n\u0160\u00ed\u0159en\u00ed v\u00fdbuchu<\/strong>: Po\u010d\u00e1te\u010dn\u00ed v\u00fdbuch v prostoru obsahuj\u00edc\u00edm ho\u0159lav\u00e9 prachy m\u016f\u017ee zp\u016fsobit roz\u0161\u00ed\u0159en\u00ed v\u00fdbuchu do dal\u0161\u00edch prostor, kde jsou p\u0159\u00edtomny v\u00fdbu\u0161n\u00e9 sm\u011bsi. To m\u016f\u017ee zp\u016fsobit nebezpe\u010dn\u00e9 situace se <\/strong>sekund\u00e1rn\u00edmi v\u00fdbuchy a rozs\u00e1hl\u00fdmi \u0161kodami. <\/p>\n\nAktu\u00e1ln\u00ed informace o pyroforick\u00e9m prachu :<\/h2>\n\n Jedn\u00e1 se o pevn\u00e9 l\u00e1tky, kter\u00e9 se mohou samovoln\u011b vzn\u00edtit p\u0159i kontaktu s okoln\u00edm vzduchem, ani\u017e by bylo nutn\u00e9 pou\u017e\u00edt vn\u011bj\u0161\u00ed zdroj ho\u0159en\u00ed, jako je jiskra nebo otev\u0159en\u00fd plamen. Tyto l\u00e1tky jsou \u010dasto vysoce reaktivn\u00ed materi\u00e1ly,<\/strong> kter\u00e9 prudce reaguj\u00ed s kysl\u00edkem ve vzduchu a vytv\u00e1\u0159ej\u00ed rizika, jako je : <\/p>\n\nSamovoln\u00e1 ho\u0159lavost <\/strong>: Pyroforick\u00e9 prachy se mohou p\u0159i kontaktu se vzduchem okam\u017eit\u011b vzn\u00edtit. To m\u016f\u017ee v\u00e9st k rychl\u00fdm a prudk\u00fdm po\u017e\u00e1r\u016fm, kter\u00e9 je obt\u00ed\u017en\u00e9 kontrolovat. Vznikl\u00e9 plameny se mohou rychle \u0161\u00ed\u0159it a zp\u016fsobit zna\u010dn\u00e9 materi\u00e1ln\u00ed \u0161kody<\/strong>. <\/p>\n\nNebezpe\u010d\u00ed v\u00fdbuchu<\/strong>: V ur\u010dit\u00fdch situac\u00edch mohou pyroforick\u00e9 prachy tvo\u0159it se vzduchem v\u00fdbu\u0161n\u00e9 sm\u011bsi. Pokud je dosa\u017eeno v\u00fdbu\u0161n\u00e9 koncentrace a je p\u0159\u00edtomen zdroj ho\u0159en\u00ed, m\u016f\u017ee doj\u00edt k v\u00fdbuchu, kter\u00fd zp\u016fsob\u00ed rozs\u00e1hl\u00e9 \u0161kody, v\u00e1\u017en\u00e1 zran\u011bn\u00ed a dokonce i ztr\u00e1ty na \u017eivotech.<\/strong> <\/p>\n\nToxicita a zdravotn\u00ed rizika:<\/strong> N\u011bkter\u00e9 pyroforick\u00e9 materi\u00e1ly mohou p\u0159i ho\u0159en\u00ed produkovat toxick\u00e9 plyny. Tyto plyny mohou b\u00fdt \u0161kodliv\u00e9 pro lidsk\u00e9 zdrav\u00ed a zp\u016fsobovat podr\u00e1\u017ed\u011bn\u00ed d\u00fdchac\u00edch cest<\/strong>, chemick\u00e9 pop\u00e1leniny a dal\u0161\u00ed nep\u0159\u00edzniv\u00e9 \u00fa\u010dinky. <\/p>\n\nChemick\u00e1 reaktivita<\/strong>: Pyroforick\u00e9 prachy mohou prudce reagovat s jin\u00fdmi chemick\u00fdmi l\u00e1tkami, co\u017e vede k \u0159et\u011bzov\u00fdm reakc\u00edm a nekontrolovan\u00fdm exotermick\u00fdm reakc\u00edm. To m\u016f\u017ee v\u00e9st k intenzivn\u00edm emis\u00edm tepla,<\/strong> uvol\u0148ov\u00e1n\u00ed plyn\u016f a v\u00fdbuch\u016fm. <\/p>\n\nSc\u00e9n\u00e1\u0159e po\u017e\u00e1ru a v\u00fdbuchu spojen\u00e9 s v\u00fdbu\u0161n\u00fdmi prachy<\/h2>\n\n Za ur\u010dit\u00fdch podm\u00ednek p\u0159edstavuj\u00ed zna\u010dn\u00e9 nebezpe\u010d\u00ed po\u017e\u00e1ru a v\u00fdbuchu. Zde jsou n\u011bkter\u00e9 b\u011b\u017en\u00e9 sc\u00e9n\u00e1\u0159e: <\/p>\n\n
\nHo\u0159en\u00ed v oblaku:<\/strong> Kdy\u017e se prach rozpt\u00fdl\u00ed ve vzduchu jako oblak a p\u0159ijde do styku s ho\u0159en\u00edm, nap\u0159\u00edklad s jiskrou, otev\u0159en\u00fdm plamenem nebo hork\u00fdm povrchem, m\u016f\u017ee doj\u00edt k rychl\u00e9mu a prudk\u00e9mu ho\u0159en\u00ed. To m\u016f\u017ee v\u00e9st k v\u00fdbuchu s n\u00e1hl\u00fdm uvoln\u011bn\u00edm r\u00e1zov\u00e9 vlny<\/strong> a rychl\u00e9mu roz\u0161\u00ed\u0159en\u00ed po\u017e\u00e1ru. <\/li>\n\n\n\nHromad\u011bn\u00ed prachu<\/strong>: Prach se m\u016f\u017ee hromadit v pracovn\u00edch oblastech, zejm\u00e9na na vodorovn\u00fdch ploch\u00e1ch a v t\u011b\u017eko p\u0159\u00edstupn\u00fdch roz\u00edch. Pokud se nahromad\u00ed dostate\u010dn\u00e9 mno\u017estv\u00ed prachu, m\u016f\u017ee se vytvo\u0159it ho\u0159lav\u00e1 vrstva. P\u0159i ho\u0159en\u00ed, nap\u0159\u00edklad p\u0159i elektrostatick\u00e9 jisk\u0159e nebo p\u0159eh\u0159\u00e1t\u00ed, se m\u016f\u017ee nahromad\u011bn\u00fd prach vzn\u00edtit a zp\u016fsobit po\u017e\u00e1r nebo v\u00fdbuch<\/strong>. <\/li>\n\n\n\nDeflagrace v kan\u00e1lech nebo dopravn\u00edch syst\u00e9mech <\/strong>: Prach se m\u016f\u017ee \u0161\u00ed\u0159it v kan\u00e1lech, potrub\u00edch nebo dopravn\u00edch syst\u00e9mech, jako jsou dopravn\u00edky. Pokud je v\u00fdbu\u0161n\u00fd prach uzav\u0159en v mal\u00e9m prostoru a p\u0159ijde do styku se spalov\u00e1n\u00edm, m\u016f\u017ee vyvolat deflagraci<\/strong>. Deflagrace se m\u016f\u017ee rychle \u0161\u00ed\u0159it po potrub\u00ed a zp\u016fsobit zna\u010dn\u00e9 \u0161kody. <\/li>\n\n\n\nExotermick\u00e9 chemick\u00e9 reakce<\/strong>: N\u011bkter\u00e9 v\u00fdbu\u0161n\u00e9 prachy mohou chemicky reagovat exotermicky, tj. uvol\u0148ovat teplo. Pokud je reakce dostate\u010dn\u011b rychl\u00e1 a intenzivn\u00ed, m\u016f\u017ee zp\u016fsobit rychl\u00fd n\u00e1r\u016fst teploty a ho\u0159en\u00ed okoln\u00edho prachu. To m\u016f\u017ee v\u00e9st k po\u017e\u00e1ru nebo v\u00fdbuchu.<\/strong> <\/li>\n\n\n\nVzn\u00edcen\u00ed od zdroj\u016f energie:<\/strong> Prach se m\u016f\u017ee vzn\u00edtit od r\u016fzn\u00fdch zdroj\u016f energie, jako jsou elektrick\u00e9 jiskry, hork\u00e9 povrchy, otev\u0159en\u00fd ohe\u0148, mechanick\u00e9 jiskry nebo elektrostatick\u00e9 v\u00fdboje. I zd\u00e1nliv\u011b ne\u0161kodn\u00e9 jiskry mohou p\u0159i spln\u011bn\u00ed spr\u00e1vn\u00fdch podm\u00ednek sta\u010dit k zap\u00e1len\u00ed prachu<\/strong>. <\/li>\n<\/ul>\n\nMezi odv\u011btv\u00ed, kter\u00e1 mohou p\u0159edstavovat vysok\u00e9 riziko pra\u0161nosti podle sm\u011brnice ATEX (v\u00fdbu\u0161n\u00e9 prost\u0159ed\u00ed), pat\u0159\u00ed :<\/p>\n\n
\nChemick\u00fd pr\u016fmysl:<\/strong> V chemick\u00fdch v\u00fdrobn\u00edch z\u00e1vodech, z\u00e1vodech na v\u00fdrobu chemick\u00fdch produkt\u016f a ve skladech chemick\u00fdch l\u00e1tek m\u016f\u017ee p\u0159i manipulaci, m\u00edch\u00e1n\u00ed, mlet\u00ed nebo pros\u00e9v\u00e1n\u00ed vznikat prach<\/strong>.<\/li>\n\n\n\nFarmaceutick\u00fd pr\u016fmysl:<\/strong> Farmaceutick\u00fd pr\u016fmysl zab\u00fdvaj\u00edc\u00ed se v\u00fdrobou l\u00e9k\u016f, pevn\u00fdch farmaceutick\u00fdch v\u00fdrobk\u016f, pr\u00e1\u0161k\u016f nebo tablet m\u016f\u017ee <\/strong>p\u0159i v\u00fdrob\u011b a manipulaci s v\u00fdrobky vytv\u00e1\u0159et potenci\u00e1ln\u00ed prach <\/strong>.<\/li>\n\n\n\nPotravin\u00e1\u0159sk\u00fd pr\u016fmysl:<\/strong> Za\u0159\u00edzen\u00ed na zpracov\u00e1n\u00ed potravin, ml\u00fdny na mouku, obiln\u00e1 sila, su\u0161\u00e1rny potravin nebo pra\u017e\u00edrny mohou produkovat prach. Mouka, cukr, ko\u0159en\u00ed, obiloviny a ml\u00e9\u010dn\u00e9 v\u00fdrobky mohou vytv\u00e1\u0159et v\u00fdbu\u0161nou atmosf\u00e9ru<\/strong>. <\/li>\n\n\n\nD\u0159evozpracuj\u00edc\u00ed pr\u016fmysl:<\/strong> Pily, d\u0159evozpracuj\u00edc\u00ed z\u00e1vody a za\u0159\u00edzen\u00ed na v\u00fdrobu d\u0159evot\u0159\u00edskov\u00fdch desek, p\u0159ekli\u017eek a d\u0159evn\u00edch vl\u00e1ken mohou produkovat prach, zejm\u00e9na z d\u0159ev\u011bn\u00fdch t\u0159\u00edsek a pilin.<\/li>\n\n\n\nMetalurgie<\/strong>: Sl\u00e9v\u00e1rny, ocel\u00e1rny, sva\u0159ovny a za\u0159\u00edzen\u00ed na zpracov\u00e1n\u00ed kov\u016f mohou produkovat kovov\u00fd prach, nap\u0159\u00edklad hlin\u00edkov\u00fd, ho\u0159\u010d\u00edkov\u00fd nebo titanov\u00fd, kter\u00fd m\u016f\u017ee p\u0159edstavovat riziko v\u00fdbuchu<\/strong>.<\/li>\n\n\n\nBarvy a n\u00e1t\u011bry:<\/strong> V za\u0159\u00edzen\u00edch na v\u00fdrobu barev, lak\u016f, n\u00e1t\u011br\u016f nebo rozpou\u0161t\u011bdel m\u016f\u017ee vznikat v\u00fdbu\u0161n\u00e1 atmosf\u00e9ra kv\u016fli t\u011bkav\u00fdm rozpou\u0161t\u011bdl\u016fm a prachu z pigment\u016f<\/strong>.<\/li>\n\n\n\nV\u00fdbu\u0161niny a munice:<\/strong> Za\u0159\u00edzen\u00ed vyr\u00e1b\u011bj\u00edc\u00ed v\u00fdbu\u0161niny, st\u0159eln\u00fd prach, munici a z\u00e1bavn\u00ed pyrotechniku p\u0159edstavuj\u00ed vlastn\u00ed nebezpe\u010d\u00ed v\u00fdbuchu vzhledem k povaze zpracov\u00e1van\u00fdch materi\u00e1l\u016f<\/strong>.<\/li>\n\n\n\nK\u00e1men a nerosty<\/strong>: Hrozba v\u00fdbuchu v odv\u011btv\u00ed t\u011b\u017eby kamene je umocn\u011bna velikost\u00ed prachov\u00fdch \u010d\u00e1stic a jejich suspendac\u00ed ve vzduchu. Kdy\u017e tyto \u010d\u00e1stice dos\u00e1hnou ur\u010dit\u00e9 koncentrace v atmosf\u00e9\u0159e a p\u0159ijdou do styku se spalov\u00e1n\u00edm, nap\u0159\u00edklad s elektrickou jiskrou, otev\u0159en\u00fdm plamenem nebo hork\u00fdm povrchem, m\u016f\u017ee doj\u00edt k v\u00fdbuchu<\/strong>. <\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"Jedn\u00e1 se o proces \u010di\u0161t\u011bn\u00ed a odstra\u0148ov\u00e1n\u00ed ho\u0159lav\u00e9ho nebo v\u00fdbu\u0161n\u00e9ho prachu p\u0159\u00edtomn\u00e9ho v r\u016fzn\u00fdch pr\u016fmyslov\u00fdch prost\u0159ed\u00edch. V\u00fdbu\u0161n\u00fd prach jsou jemn\u00e9 molekuly, kter\u00e9 se mohou hromadit ve vzduchu nebo na povrchu a p\u0159edstavuj\u00ed v\u00e1\u017enou hrozbu v\u00fdbuchu nebo po\u017e\u00e1ru, pokud se dostanou do kontaktu se zdrojem vzn\u00edcen\u00ed, jako je jiskra nebo otev\u0159en\u00fd plamen. <\/p>\n","protected":false},"author":4,"featured_media":84956,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"Co je to ods\u00e1v\u00e1n\u00ed a odstra\u0148ov\u00e1n\u00ed v\u00fdbu\u0161n\u00e9ho prachu?","_seopress_titles_desc":"Ods\u00e1v\u00e1n\u00ed a odstra\u0148ov\u00e1n\u00ed v\u00fdbu\u0161n\u00e9ho prachu je proces \u010di\u0161t\u011bn\u00ed a odstra\u0148ov\u00e1n\u00ed ho\u0159lav\u00e9ho nebo v\u00fdbu\u0161n\u00e9ho prachu p\u0159\u00edtomn\u00e9ho v r\u016fzn\u00fdch pr\u016fmyslov\u00fdch prost\u0159ed\u00edch.","_seopress_robots_index":"","footnotes":""},"categories":[310],"tags":[113],"class_list":["post-41746","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nase-rady","tag-entete-male","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50","no-featured-image-padding","resize-featured-image"],"acf":[],"_links":{"self":[{"href":"https:\/\/obera.fr\/cs\/wp-json\/wp\/v2\/posts\/41746","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/obera.fr\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/obera.fr\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/obera.fr\/cs\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/obera.fr\/cs\/wp-json\/wp\/v2\/comments?post=41746"}],"version-history":[{"count":3,"href":"https:\/\/obera.fr\/cs\/wp-json\/wp\/v2\/posts\/41746\/revisions"}],"predecessor-version":[{"id":85221,"href":"https:\/\/obera.fr\/cs\/wp-json\/wp\/v2\/posts\/41746\/revisions\/85221"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/obera.fr\/cs\/wp-json\/wp\/v2\/media\/84956"}],"wp:attachment":[{"href":"https:\/\/obera.fr\/cs\/wp-json\/wp\/v2\/media?parent=41746"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/obera.fr\/cs\/wp-json\/wp\/v2\/categories?post=41746"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/obera.fr\/cs\/wp-json\/wp\/v2\/tags?post=41746"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"zachycení](\"https:\/\/obera.fr\/wp-content\/uploads\/2023\/12\/capture-decran-2023-12-06-160301.png\")
<\/figure>\n<\/div>\n\n\n\n![\"nebezpečí](\"https:\/\/obera.fr\/wp-content\/uploads\/2023\/12\/risque-incendie.jpg\")
<\/figure>\n<\/div>\n\n\n\n![\"zdravotní](\"https:\/\/obera.fr\/wp-content\/uploads\/2023\/12\/risque-sante.png\")
<\/figure>\n<\/div>\n<\/div>\n\n![\"atex](\"https:\/\/obera.fr\/wp-content\/uploads\/2023\/12\/atex-100x100-2.png\")
<\/figure>\n\n![\"klasifikace](\"https:\/\/obera.fr\/wp-content\/uploads\/2023\/12\/classification-st1-st3-1.png\")
<\/figure>\n\n![\"zachycení](\"https:\/\/obera.fr\/wp-content\/uploads\/2023\/12\/capture-decran-2023-12-06-155242-1.png\")
<\/figure>\n\n![\"klasifikace](\"https:\/\/obera.fr\/wp-content\/uploads\/2023\/12\/classement-atex.png\")
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