{"id":7685,"date":"2022-12-05T16:00:45","date_gmt":"2022-12-05T13:00:45","guid":{"rendered":"https:\/\/energosteel.com\/?p=7685"},"modified":"2022-12-05T16:21:36","modified_gmt":"2022-12-05T13:21:36","slug":"ogolne-pojecia-zwiazane-z-rozdrabnianiem","status":"publish","type":"post","link":"https:\/\/energosteel.com\/pl\/ogolne-pojecia-zwiazane-z-rozdrabnianiem\/","title":{"rendered":"OG\u00d3LNE POJ\u0118CIA ZWI\u0104ZANE Z ROZDRABNIANIEM"},"content":{"rendered":"

Przypomnijmy troch\u0119 teorii, a dok\u0142adniej czym jest rozdrabnianie i w jaki spos\u00f3b odbywa si\u0119 to w przedsi\u0119biorstwach przemys\u0142owych.<\/p>\n

Intensywno\u015b\u0107 wielu proces\u00f3w technologicznych zale\u017cy od rozmiaru ca\u0142kowitej powierzchni obrabianego materia\u0142u twardego; im warto\u015b\u0107 tego wska\u017anika jest wy\u017csza, tym skuteczniejsze jest rozdrabnianie. Wzrost tego wska\u017anika uzyskuje si\u0119 poprzez zmniejszenie wielko\u015bci kawa\u0142k\u00f3w materia\u0142u (rozdrabnianie), co z kolei zapewnia jako\u015b\u0107 produktu ko\u0144cowego.<\/p>\n

Proces zmniejszania rozmiar\u00f3w kawa\u0142k\u00f3w materia\u0142u twardego nazywa si\u0119 kruszeniem lub mieleniem.\u00a0 Przez kruszenie cz\u0119sto rozumie si\u0119 zmniejszenie tylko du\u017cych bry\u0142. Proces ten odbywa si\u0119 w kruszarkach.<\/p>\n

Proces rozdrabniania mniejszych kawa\u0142k\u00f3w nazywany jest mieleniem. Proces ten przeprowadzany jest najcz\u0119\u015bciej w m\u0142ynach kulowych, w kt\u00f3rych jako mielniki stosowane s\u0105 kule miel\u0105ce.<\/p>\n

Paliwo (w\u0119giel), surowce (ska\u0142y, rudy), p\u00f3\u0142produkty i produkty gotowe mog\u0105 by\u0107 rozdrabniane.<\/p>\n

Rozdrabnianie nazywa si\u0119 du\u017cym, je\u015bli obrabiane s\u0105 elementy o wymiarze przekroju poprzecznego od 1000 do 200 mm, \u015brednim i po\u015brednim od 250 do 50 mm, drobnym od 50 do 20 mm i cienkim od 25 do 3 mm lub mniej.<\/p>\n

Ca\u0142kowity stopie\u0144 rozdrabniania charakteryzuje \u0142\u0105czny wynik rozdrabniania przeprowadzonego w kilku etapach. Cementownie wykorzystuj\u0105 do tego celu dwukomorowe m\u0142yny kulowe. Do pierwszej komory \u0142adowane s\u0105 kule miel\u0105ce o \u015brednicy 100-50 mm. Zbi\u00f3r kul miel\u0105cych o \u015brednicy 25-40 mm \u0142adowany jest do drugiej komory. W zak\u0142adach g\u00f3rniczych i przetw\u00f3rczych stosowane s\u0105 jednokomorowe m\u0142yny kulowe, wykorzystuj\u0105c „etapowo\u015b\u0107” rozdrabniania. Oznacza to, \u017ce w pierwszym etapie rozdrabniania s\u0105 u\u017cywane stalowe kule o \u015brednicy 120-100 mm, w drugim etapie 60-40 mm, a w trzecim o najmniejszej \u015brednicy – 25-30 mm.<\/p>\n

Stopie\u0144 rozdrabniania kawa\u0142k\u00f3w w jednym etapie obr\u00f3bki wynosi:<\/p>\n

Rozdrabnianie odbywa si\u0119 poprzez mia\u017cd\u017cenie (1), uderzanie (II), \u015bcieranie (III) i rozszczepianie (IV).<\/p>\n

<\/p>\n

W wi\u0119kszo\u015bci przypadk\u00f3w wyst\u0119puje kombinacja typ\u00f3w rozdrabniania, np. mia\u017cd\u017cenie ze \u015bcieraniem, uderzenie ze mia\u017cd\u017ceniem i \u015bcieraniem; niekiedy do typ\u00f3w g\u0142\u00f3wnych do\u0142\u0105czaj\u0105 si\u0119 poboczne typy – zginaj\u0105ce i rozrywaj\u0105ce.<\/p>\n

Spos\u00f3b rozdrabniania dobiera si\u0119 na podstawie w\u0142a\u015bciwo\u015bci fizycznych rozdrabnianego materia\u0142u, najpierw jego twardo\u015bci i charakteru z\u0142amania.<\/p>\n

W przypadku bardzo twardych materia\u0142\u00f3w skuteczniejsze jest uderzanie i kruszenie; w przypadku materia\u0142\u00f3w plastycznych preferowane jest \u015bcieranie; w przypadku materia\u0142\u00f3w kruchych skuteczniejsze jest rozszczepianie.<\/p>\n

Jednym z najwa\u017cniejszych czynnik\u00f3w charakteryzuj\u0105cych proces rozdrabniania jest ilo\u015b\u0107 energii potrzebnej do rozdrabniania jednej tony materia\u0142u. Im wi\u0119ksza jest wytrzyma\u0142o\u015b\u0107 rozdrabnianego materia\u0142u, tym wi\u0119cej energii wymagano do rozdrabniania. Bardziej szczeg\u00f3\u0142owo na temat zu\u017cycia energii i sposobu stosowania w praktyce rozwa\u017cali\u015bmy ju\u017c w naszych publikacjach:<\/p>\n

https:\/\/energosteel.com\/metod-smc\/<\/a>
\nhttps:\/\/energosteel.com\/ispolzovanie-energeticheskih-indeksov-raschet-indeksa-bonda-dlya-sharovogo-izmelcheniya\/<\/a>
\nhttps:\/\/energosteel.com\/test-padajushhego-gruza-po-metodike-jkmrc\/<\/a>
\nhttps:\/\/energosteel.com\/ispolzovanie-energeticheskih-indeksov-raschet-indeksa-bonda-dlya-sterzhnevogo-izmelcheniya\/<\/a>
\nhttps:\/\/energosteel.com\/metody-vybora-sag-melnic-iii-raschet-indeksa-bonda-drobleniya\/<\/a>
\nhttps:\/\/energosteel.com\/metody-vybora-sag-melnic-ii-rabochij-indeks-f-bonda-v-izmelchenii\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Przypomnijmy troch\u0119 teorii, a dok\u0142adniej czym jest rozdrabnianie i w jaki spos\u00f3b odbywa si\u0119 to w przedsi\u0119biorstwach przemys\u0142owych. Intensywno\u015b\u0107 wielu proces\u00f3w technologicznych zale\u017cy od rozmiaru ca\u0142kowitej [\u2026]<\/span><\/p>\n","protected":false},"author":4,"featured_media":7674,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"link","meta":{"footnotes":""},"categories":[134],"tags":[],"class_list":["post-7685","post","type-post","status-publish","format-link","has-post-thumbnail","hentry","category-bez-kategorii","post_format-post-format-link"],"yoast_head":"\nOG\u00d3LNE POJ\u0118CIA ZWI\u0104ZANE Z ROZDRABNIANIEM<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/energosteel.com\/obshhie-ponyatiya-izmelcheniya\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"OG\u00d3LNE POJ\u0118CIA ZWI\u0104ZANE Z ROZDRABNIANIEM\" \/>\n<meta property=\"og:description\" content=\"Przypomnijmy troch\u0119 teorii, a dok\u0142adniej czym jest rozdrabnianie i w jaki spos\u00f3b odbywa si\u0119 to w przedsi\u0119biorstwach przemys\u0142owych. 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