{"id":125573,"date":"2023-02-03T10:14:25","date_gmt":"2023-02-03T02:14:25","guid":{"rendered":"https:\/\/www.alpapowder.com\/125573\/"},"modified":"2023-02-03T10:14:26","modified_gmt":"2023-02-03T02:14:26","slug":"lam-the-nao-de-chon-mot-thiet-bi-mai","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/125573\/","title":{"rendered":"L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ch\u1ecdn m\u1ed9t thi\u1ebft b\u1ecb m\u00e0i?"},"content":{"rendered":"

\"\"<\/p>\n

Trong l\u0129nh v\u1ef1c nghi\u1ec1n qu\u1eb7ng phi kim lo\u1ea1i, c\u00e1c lo\u1ea1i thi\u1ebft b\u1ecb nghi\u1ec1n xu\u1ea5t hi\u1ec7n v\u00f4 t\u1eadn. Nh\u01b0 ch\u00fang ta \u0111\u00e3 bi\u1ebft, \u0111\u1ec3 ch\u1ebf bi\u1ebfn qu\u1eb7ng phi kim lo\u1ea1i, m\u1ed9t l\u00e0 lo\u1ea1i b\u1ecf t\u1ea1p ch\u1ea5t v\u00e0 n\u00e2ng cao \u0111\u1ed9 tinh khi\u1ebft c\u1ee7a s\u1ea3n ph\u1ea9m; hai l\u00e0 gi\u1ea3m k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a s\u1ea3n ph\u1ea9m \u1edf c\u00e1c m\u1ee9c \u0111\u1ed9 kh\u00e1c nhau.<\/p>\n

Trong qu\u00e1 tr\u00ecnh gi\u1ea3m k\u00edch th\u01b0\u1edbc h\u1ea1t s\u1ea3n ph\u1ea9m, vi\u1ec7c l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb nghi\u1ec1n l\u00e0 r\u1ea5t quan tr\u1ecdng, \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn t\u1ef7 l\u1ec7 s\u1eed d\u1ee5ng t\u00e0i nguy\u00ean kho\u00e1ng s\u1ea3n, chi ph\u00ed s\u1ea3n xu\u1ea5t, ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m v\u00e0 l\u1ee3i \u00edch kinh t\u1ebf. Do \u0111\u00f3, khi c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t ch\u1ecdn thi\u1ebft b\u1ecb, h\u1ecd c\u1ea7n c\u00f3 \u0111\u1ee7 th\u00f4ng tin \u0111\u1ec3 x\u00e1c nh\u1eadn l\u1ef1a ch\u1ecdn c\u1ee7a m\u00ecnh sau khi ch\u1ee7 \u0111\u1ed9ng li\u00ean l\u1ea1c v\u1edbi nh\u00e0 s\u1ea3n xu\u1ea5t theo nhu c\u1ea7u th\u1ef1c t\u1ebf c\u1ee7a h\u1ecd.<\/p>\n

PH\u1ea6N 1: M\u00e1y nghi\u1ec1n t\u00e1c \u0111\u1ed9ng si\u00eau m\u1ecbn<\/p>\n

Nguy\u00ean t\u1eafc l\u00e0m vi\u1ec7c: V\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c thi\u1ebft b\u1ecb c\u1ea5p li\u1ec7u v\u1eadn chuy\u1ec3n \u0111\u1ebfn bu\u1ed3ng nghi\u1ec1n c\u1ee7a m\u00e1y ch\u00ednh, v\u00e0 v\u1eadt li\u1ec7u, thi\u1ebft b\u1ecb quay t\u1ed1c \u0111\u1ed9 cao v\u00e0 c\u00e1c h\u1ea1t va ch\u1ea1m, va ch\u1ea1m, c\u1ecd x\u00e1t, c\u1eaft v\u00e0 \u00e9p l\u1eabn nhau \u0111\u1ec3 th\u1ef1c hi\u1ec7n qu\u00e1 tr\u00ecnh nghi\u1ec1n. V\u1eadt li\u1ec7u nghi\u1ec1n \u0111\u01b0\u1ee3c t\u00e1ch th\u00e0nh b\u1ed9t th\u00f4 v\u00e0 b\u1ed9t m\u1ecbn b\u1eb1ng b\u00e1nh xe ph\u00e2n lo\u1ea1i, b\u1ed9t th\u00f4 ch\u1ea3y v\u00e0o bu\u1ed3ng nghi\u1ec1n \u0111\u1ec3 nghi\u1ec1n l\u1ea1i v\u00e0 kh\u00ed tinh khi\u1ebft \u0111\u01b0\u1ee3c th\u1ea3i ra ngo\u00e0i b\u1eb1ng qu\u1ea1t gi\u00f3 c\u1ea3m \u1ee9ng.<\/p>\n

PH\u1ea6N2: Jet Mill<\/a><\/p>\n

Nguy\u00ean l\u00fd l\u00e0m vi\u1ec7c: Sau khi kh\u00ed n\u00e9n \u0111\u01b0\u1ee3c l\u00e0m m\u00e1t, l\u1ecdc v\u00e0 s\u1ea5y kh\u00f4, n\u00f3 t\u1ea1o th\u00e0nh lu\u1ed3ng kh\u00f4ng kh\u00ed si\u00eau thanh \u0111i qua v\u00f2i v\u00e0 b\u01a1m v\u00e0o bu\u1ed3ng nghi\u1ec1n quay \u0111\u1ec3 l\u00e0m cho v\u1eadt li\u1ec7u h\u00f3a l\u1ecfng. S\u1ef1 h\u1ed9i t\u1ee5 t\u1ea1o ra va ch\u1ea1m d\u1eef d\u1ed9i, ma s\u00e1t v\u00e0 c\u1eaft \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng nghi\u1ec1n si\u00eau m\u1ecbn c\u1ee7a c\u00e1c h\u1ea1t.<\/p>\n

So v\u1edbi m\u00e1y nghi\u1ec1n si\u00eau m\u1ecbn t\u00e1c \u0111\u1ed9ng c\u01a1 h\u1ecdc th\u00f4ng th\u01b0\u1eddng, m\u00e1y nghi\u1ec1n ph\u1ea3n l\u1ef1c c\u00f3 th\u1ec3 nghi\u1ec1n s\u1ea3n ph\u1ea9m r\u1ea5t m\u1ecbn v\u00e0 ph\u1ea1m vi ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t h\u1eb9p h\u01a1n, ngh\u0129a l\u00e0 k\u00edch th\u01b0\u1edbc h\u1ea1t \u0111\u1ed3ng \u0111\u1ec1u h\u01a1n; v\u00e0 do kh\u00ed gi\u00e3n n\u1edf \u1edf v\u00f2i \u0111\u1ec3 h\u1ea1 nhi\u1ec7t, n\u00ean kh\u00f4ng c\u00f3 nhi\u1ec7t \u0111i k\u00e8m trong qu\u00e1 tr\u00ecnh nghi\u1ec1n th\u00e0nh b\u1ed9t, do \u0111\u00f3, m\u1ee9c t\u0103ng nhi\u1ec7t \u0111\u1ed9 c\u1ee7a qu\u00e1 tr\u00ecnh nghi\u1ec1n th\u00e0nh b\u1ed9t r\u1ea5t th\u1ea5p, \u0111i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi qu\u00e1 tr\u00ecnh nghi\u1ec1n si\u00eau m\u1ecbn c\u1ee7a c\u00e1c v\u1eadt li\u1ec7u c\u00f3 nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y th\u1ea5p v\u00e0 nh\u1ea1y c\u1ea3m v\u1edbi nhi\u1ec7t, nh\u01b0ng m\u00e1y nghi\u1ec1n ph\u1ea3n l\u1ef1c c\u0169ng c\u00f3 m\u1ed9t nh\u01b0\u1ee3c \u0111i\u1ec3m t\u01b0\u01a1ng \u0111\u1ed1i ph\u1ed5 bi\u1ebfn, \u0111\u00f3 l\u00e0 ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng cao.<\/p>\n

PH\u1ea6N3: M\u00e1y nghi\u1ec1n con l\u0103n<\/p>\n

Nguy\u00ean t\u1eafc l\u00e0m vi\u1ec7c: V\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o bu\u1ed3ng nghi\u1ec1n th\u00f4ng qua b\u1ed9 c\u1ea5p li\u1ec7u chuy\u1ec3n \u0111\u1ed5i t\u1ea7n s\u1ed1, v\u00e0 qu\u00e1 tr\u00ecnh nghi\u1ec1n si\u00eau m\u1ecbn c\u1ee7a v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n th\u00f4ng qua qu\u00e1 tr\u00ecnh \u0111\u00f9n, c\u1eaft v\u00e0 m\u00e0i c\u1ee7a con l\u0103n nghi\u1ec1n. V\u1eadt li\u1ec7u nghi\u1ec1n th\u00e0nh b\u1ed9t \u0111\u01b0\u1ee3c v\u1eadn chuy\u1ec3n \u0111\u1ebfn khu v\u1ef1c ph\u00e2n lo\u1ea1i nh\u1edd lu\u1ed3ng kh\u00f4ng kh\u00ed t\u0103ng l\u00ean, v\u00e0 d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a l\u1ef1c ly t\u00e2m c\u1ee7a b\u00e1nh xe ph\u00e2n lo\u1ea1i v\u00e0 l\u1ef1c h\u00fat c\u1ee7a qu\u1ea1t, vi\u1ec7c t\u00e1ch b\u1ed9t th\u00f4 v\u00e0 b\u1ed9t m\u1ecbn \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n. C\u00e1c s\u1ea3n ph\u1ea9m m\u1ecbn h\u01a1n \u0111\u01b0\u1ee3c thu th\u1eadp b\u1edfi b\u1ed9 thu gom v\u00e0 c\u00e1c h\u1ea1t th\u00f4 \u0111\u01b0\u1ee3c \u0111\u01b0a tr\u1edf l\u1ea1i bu\u1ed3ng nghi\u1ec1n \u0111\u1ec3 nghi\u1ec1n l\u1ea1i. Kh\u00f4ng kh\u00ed tinh khi\u1ebft \u0111\u01b0\u1ee3c th\u1ea3i ra b\u1edfi qu\u1ea1t gi\u00f3 c\u1ea3m \u1ee9ng.<\/p>\n

PH\u1ea6N4: D\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t ph\u00e2n lo\u1ea1i v\u00e0 nghi\u1ec1n bi<\/p>\n

Nguy\u00ean t\u1eafc l\u00e0m vi\u1ec7c: Sau khi nghi\u1ec1n th\u00f4, v\u1eadt li\u1ec7u \u0111i v\u00e0o m\u00e1y nghi\u1ec1n bi si\u00eau m\u1ecbn t\u1eeb thi\u1ebft b\u1ecb v\u1eadn chuy\u1ec3n n\u00e2ng. M\u00f4i tr\u01b0\u1eddng nghi\u1ec1n trong m\u00e1y nghi\u1ec1n t\u00e1c \u0111\u1ed9ng v\u00e0 nghi\u1ec1n v\u1eadt li\u1ec7u b\u1eb1ng n\u0103ng l\u01b0\u1ee3ng thu \u0111\u01b0\u1ee3c khi m\u00e1y nghi\u1ec1n quay. V\u1eadt li\u1ec7u nghi\u1ec1n \u0111i qua th\u00f9ng x\u1ea3. Nh\u1eadp b\u1ed9 ph\u00e2n lo\u1ea1i vi b\u1ed9t t\u1ef1 ph\u00e2n ph\u1ed1i \u0111\u1ec3 ph\u00e2n lo\u1ea1i \u0111\u1ec3 nh\u1eadn ra s\u1ef1 ph\u00e2n t\u00e1ch c\u1ee7a b\u1ed9t th\u00f4 v\u00e0 b\u1ed9t m\u1ecbn. B\u1ed9t m\u1ecbn \u0111\u1ee7 ti\u00eau chu\u1ea9n \u0111\u01b0\u1ee3c thu th\u1eadp b\u1edfi b\u1ed9 thu gom v\u00e0 c\u00e1c h\u1ea1t th\u00f4 \u0111i v\u00e0o m\u00e1y nghi\u1ec1n bi t\u1eeb \u0111\u1ea7u d\u01b0\u1edbi c\u1ee7a b\u1ed9 ph\u00e2n lo\u1ea1i \u0111\u1ec3 nghi\u1ec1n, v\u00e0 kh\u00ed tinh khi\u1ebft \u0111\u01b0\u1ee3c th\u1ea3i ra b\u1edfi qu\u1ea1t gi\u00f3 c\u1ea3m \u1ee9ng.<\/p>\n

Theo c\u00e1c v\u1eadt li\u1ec7u kh\u00e1c nhau, d\u00e2y chuy\u1ec1n m\u00e1y nghi\u1ec1n bi c\u00f3 th\u1ec3 ch\u1ecdn l\u1edbp l\u00f3t v\u00e0 m\u00f4i tr\u01b0\u1eddng nghi\u1ec1n t\u01b0\u01a1ng \u1ee9ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tinh khi\u1ebft v\u00e0 \u0111\u1ed9 tr\u1eafng c\u1ee7a s\u1ea3n ph\u1ea9m. Thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng h\u1ee3p l\u00fd gi\u00fap gi\u1ea3m 50% \u0111\u1ea7u t\u01b0 v\u00e0o c\u00f4ng tr\u00ecnh d\u00e2n d\u1ee5ng v\u00e0 thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3 so v\u1edbi c\u00e1c d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t nghi\u1ec1n bi v\u00e0 ph\u00e2n lo\u1ea1i kh\u00e1c. N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng \u0111\u1ec3 nghi\u1ec1n c\u00e1c v\u1eadt li\u1ec7u sau: \u2460 v\u1eadt li\u1ec7u m\u1ec1m, ch\u1eb3ng h\u1ea1n nh\u01b0 canxit, \u0111\u00e1 c\u1ea9m th\u1ea1ch, \u0111\u00e1 v\u00f4i, cao lanh, th\u1ea1ch cao, barit, tro bay, x\u1ec9, v.v.; \u2461 v\u1eadt li\u1ec7u c\u1ee9ng: cacbua silic, corundum n\u00e2u, mullite, xi m\u0103ng si\u00eau m\u1ecbn, c\u00e1t zircon, andalusite, v\u1eadt li\u1ec7u ch\u1ecbu l\u1eeda, v.v.; \u2462 v\u1eadt li\u1ec7u c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao: th\u1ea1ch anh, fenspat, \u03b1-nh\u00f4m, h\u1ea1t th\u1ee7y tinh, ph\u1ed1t pho, v.v. V\u1eadt li\u1ec7u kim lo\u1ea1i: b\u1ed9t k\u1ebdm, b\u1ed9t nh\u00f4m, b\u1ed9t s\u1eaft, b\u1ed9t molypden, v.v.<\/p>\n","protected":false},"excerpt":{"rendered":"

Trong qu\u00e1 tr\u00ecnh gi\u1ea3m k\u00edch th\u01b0\u1edbc h\u1ea1t s\u1ea3n ph\u1ea9m, vi\u1ec7c l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb nghi\u1ec1n l\u00e0 r\u1ea5t quan tr\u1ecdng, \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn t\u1ef7 l\u1ec7 s\u1eed d\u1ee5ng t\u00e0i nguy\u00ean kho\u00e1ng s\u1ea3n, chi ph\u00ed s\u1ea3n xu\u1ea5t, ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m v\u00e0 l\u1ee3i \u00edch kinh t\u1ebf.<\/p>\n","protected":false},"author":7,"featured_media":109951,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-125573","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cong-nghiep-tin-tuc-vi"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/125573","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/comments?post=125573"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/125573\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/109951"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=125573"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=125573"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=125573"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}