{"id":118047,"date":"2022-07-30T10:10:25","date_gmt":"2022-07-30T02:10:25","guid":{"rendered":"https:\/\/www.alpapowder.com\/118047\/"},"modified":"2022-07-27T15:20:02","modified_gmt":"2022-07-27T07:20:02","slug":"nguoi-thu-huong-va-cong-nghe-tinh-che-barit-va-tien-bo-nghien-cuu","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/118047\/","title":{"rendered":"Ng\u01b0\u1eddi th\u1ee5 h\u01b0\u1edfng v\u00e0 c\u00f4ng ngh\u1ec7 tinh ch\u1ebf barit v\u00e0 ti\u1ebfn b\u1ed9 nghi\u00ean c\u1ee9u"},"content":{"rendered":"

\"\"<\/p>\n

Barit th\u01b0\u1eddng \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u1edbi c\u00e1c kho\u00e1ng ch\u1ea5t nh\u01b0 th\u1ea1ch anh, canxit, dolomit, fluorit, siderit, rhodochrosit, pyrit, galena v\u00e0 sphalerit. Trong c\u00e1c m\u1ecf nh\u01b0 b\u1ea1c v\u00e0 \u0111\u1ea5t hi\u1ebfm, barit th\u01b0\u1eddng l\u00e0 m\u1ed9t lo\u1ea1i kho\u00e1ng v\u1eadt ph\u1ed5 bi\u1ebfn. Do \u0111\u00f3, qu\u00e1 tr\u00ecnh ph\u00e2n lo\u1ea1i barit b\u1ecb h\u1ea1n ch\u1ebf b\u1edfi c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 lo\u1ea1i tr\u1ea7m t\u00edch, th\u00e0nh ph\u1ea7n kho\u00e1ng ch\u1ea5t, v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a c\u00e1c pha barit v\u00e0 gangue.<\/p>\n

Hi\u1ec7n t\u1ea1i, c\u00e1c c\u00f4ng ngh\u1ec7 l\u00e0m s\u1ea1ch v\u00e0 th\u1ee5 h\u01b0\u1edfng barit ch\u1ee7 y\u1ebfu bao g\u1ed3m t\u00e1ch tay, t\u00e1ch tr\u1ecdng l\u1ef1c, t\u00e1ch t\u1eeb t\u00ednh, tuy\u1ec3n n\u1ed5i v\u00e0 c\u00e1c quy tr\u00ecnh k\u1ebft h\u1ee3p.<\/p>\n

1. L\u1ef1a ch\u1ecdn tay<\/p>\n

Qu\u00e1 tr\u00ecnh l\u1ef1a ch\u1ecdn th\u1ee7 c\u00f4ng l\u00e0 ch\u1ecdn th\u1ee7 c\u00f4ng qu\u1eb7ng c\u1ee5c cao c\u1ea5p d\u1ef1a tr\u00ean c\u00e1c ch\u1ec9 s\u1ed1 v\u1eadt l\u00fd tr\u1ef1c quan nh\u01b0 m\u00e0u s\u1eafc v\u00e0 h\u00ecnh d\u1ea1ng c\u1ee7a qu\u1eb7ng. N\u00f3 th\u00edch h\u1ee3p \u0111\u1ec3 ch\u1ecdn qu\u1eb7ng c\u00f3 ph\u1ea9m c\u1ea5p cao, th\u00e0nh ph\u1ea7n \u0111\u01a1n gi\u1ea3n v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng \u1ed5n \u0111\u1ecbnh. Nhi\u1ec1u m\u1ecf t\u01b0 nh\u00e2n nh\u1ecf \u1edf n\u01b0\u1edbc t\u00f4i th\u01b0\u1eddng s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1ec3 ph\u00e2n lo\u1ea1i. V\u00ed d\u1ee5, m\u1ecf Pancun, T\u01b0\u01a1ng Ch\u00e2u, Qu\u1ea3ng T\u00e2y, ch\u1ecdn qu\u1eb7ng barit c\u1ea5p cao b\u1eb1ng quy tr\u00ecnh tuy\u1ec3n ch\u1ecdn th\u1ee7 c\u00f4ng. K\u00edch th\u01b0\u1edbc h\u1ea1t c\u00f4 \u0111\u1eb7c l\u00e0 30-150mm, v\u00e0 c\u1ea5p barit c\u00f3 th\u1ec3 cao t\u1edbi 95%. Quy tr\u00ecnh \u0111\u01a1n gi\u1ea3n, d\u1ec5 th\u1ef1c hi\u1ec7n, y\u00eau c\u1ea7u c\u01a1 gi\u1edbi h\u00f3a thi\u1ebft b\u1ecb th\u1ea5p nh\u01b0ng c\u01b0\u1eddng \u0111\u1ed9 lao \u0111\u1ed9ng cao, hi\u1ec7u qu\u1ea3 s\u1ea3n xu\u1ea5t th\u1ea5p, l\u00e3ng ph\u00ed t\u00e0i nguy\u00ean nghi\u00eam tr\u1ecdng.<\/p>\n

2. B\u1ea7u c\u1eed l\u1ea1i<\/p>\n

C\u00e1c kho\u00e1ng ch\u1ea5t kh\u00e1c nhau v\u1edbi s\u1ef1 kh\u00e1c bi\u1ec7t l\u1edbn v\u1ec1 t\u1ef7 tr\u1ecdng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n t\u00e1ch b\u1eb1ng c\u00e1ch t\u00e1ch tr\u1ecdng l\u1ef1c. Kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang c\u1ee7a barit l\u00e0 4,5g \/ cm3, cao h\u01a1n nhi\u1ec1u so v\u1edbi c\u00e1c kho\u00e1ng v\u1eadt h\u1ea1t th\u00f4ng th\u01b0\u1eddng kh\u00e1c (nh\u01b0 th\u1ea1ch anh 2,65g \/ cm3, canxit 2,6g \/ cm3). Do \u0111\u00f3, qu\u00e1 tr\u00ecnh t\u00e1ch tr\u1ecdng l\u1ef1c c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u00e1ch c\u00e1c kho\u00e1ng ch\u1ea5t barit v\u00e0 gangue. L\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb t\u00e1ch tr\u1ecdng l\u1ef1c kh\u00e1c nhau t\u00f9y theo k\u00edch th\u01b0\u1edbc c\u1ee7a c\u1ea5p qu\u1eb7ng. Qu\u1eb7ng th\u00f4 (-5 + 0,45mm) c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p g\u00e1, v\u00e0 qu\u1eb7ng lo\u1ea1i m\u1ecbn (-0,45mm) c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng b\u00e0n l\u1eafc ho\u1eb7c ph\u01b0\u01a1ng ph\u00e1p m\u00e1ng xo\u1eafn.<\/p>\n

Quy tr\u00ecnh n\u00e0y c\u00f3 \u01b0u \u0111i\u1ec3m l\u00e0 thi\u1ebft b\u1ecb \u0111\u01a1n gi\u1ea3n, \u1ed5n \u0111\u1ecbnh t\u1ed1t, kh\u00f4ng c\u00f3 t\u00e1c nh\u00e2n th\u1ee5 h\u01b0\u1edfng, chi ph\u00ed th\u1ea5p, \u00edt \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng. Do \u0111\u00f3, r\u1ea5t kh\u00f3 \u0111\u1ec3 thu h\u1ed3i hi\u1ec7u qu\u1ea3 t\u00e0i nguy\u00ean barit b\u1eb1ng m\u1ed9t qu\u00e1 tr\u00ecnh t\u00e1ch tr\u1ecdng l\u1ef1c \u0111\u01a1n l\u1ebb, v\u00e0 c\u1ea7n ph\u1ea3i thu h\u1ed3i th\u00eam barit b\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p c\u00e1c qu\u00e1 tr\u00ecnh t\u00e1ch t\u1eeb ho\u1eb7c tuy\u1ec3n n\u1ed5i.<\/p>\n

3. T\u00e1ch t\u1eeb t\u00ednh<\/p>\n

Khi c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3 v\u1ec1 t\u00ednh ch\u1ea5t t\u1eeb \u200b\u200bc\u1ee7a c\u00e1c kho\u00e1ng ch\u1ea5t, qu\u00e1 tr\u00ecnh t\u00e1ch t\u1eeb t\u00ednh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u00e1ch. Barit l\u00e0 m\u1ed9t kho\u00e1ng ch\u1ea5t kh\u00f4ng t\u1eeb t\u00ednh. Khi c\u00e1c kho\u00e1ng ch\u1ea5t t\u1eeb \u200b\u200bt\u00ednh (ch\u1eb3ng h\u1ea1n nh\u01b0 oxit s\u1eaft) l\u00e0 c\u00e1c kho\u00e1ng ch\u1ea5t gangue ch\u00ednh, m\u1ed9t qu\u00e1 tr\u00ecnh ph\u00e2n t\u00e1ch t\u1eeb t\u00ednh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u00e1ch c\u00e1c kho\u00e1ng ch\u1ea5t barit v\u00e0 gangue. C\u00f4 \u0111\u1eb7c thu \u0111\u01b0\u1ee3c c\u00f3 h\u00e0m l\u01b0\u1ee3ng BaSO4 cao, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng theo y\u00eau c\u1ea7u. Barit nguy\u00ean li\u1ec7u cho d\u01b0\u1ee3c ph\u1ea9m d\u1ef1a tr\u00ean bari v\u1edbi h\u00e0m l\u01b0\u1ee3ng s\u1eaft r\u1ea5t th\u1ea5p. Ph\u00e2n t\u00e1ch t\u1eeb t\u00ednh th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ecdn pyrotin, magnetit, limonit v\u00e0 hematit.<\/p>\n

4. Tuy\u1ec3n n\u1ed5i<\/p>\n

Tuy\u1ec3n n\u1ed5i l\u00e0 m\u1ed9t c\u00e1ch quan tr\u1ecdng \u0111\u1ec3 x\u1eed l\u00fd c\u00e1c t\u00e0i nguy\u00ean barit ch\u1ecbu l\u1eeda nh\u01b0 qu\u1eb7ng c\u1ea5p th\u1ea5p, qu\u1eb7ng li\u00ean quan v\u00e0 ch\u1ea5t th\u1ea3i, v\u00e0 qu\u00e1 tr\u00ecnh n\u00e0y c\u00f3 kh\u1ea3 n\u0103ng th\u00edch \u1ee9ng t\u1ed1t v\u1edbi c\u00e1c lo\u1ea1i qu\u1eb7ng barit c\u00f3 l\u1edbp ph\u1ee7 ph\u1ee9c t\u1ea1p v\u00e0 c\u0169ng c\u00f3 kh\u1ea3 n\u0103ng thu h\u1ed3i tr\u1ecdng l\u01b0\u1ee3ng h\u1ea1t m\u1ecbn. C\u00e1ch spar hi\u1ec7u qu\u1ea3. Qu\u00e1 tr\u00ecnh tuy\u1ec3n n\u1ed5i th\u01b0\u1eddng bao g\u1ed3m tuy\u1ec3n n\u1ed5i thu\u1eadn v\u00e0 tuy\u1ec3n n\u1ed5i ng\u01b0\u1ee3c.<\/p>\n

5. Quy tr\u00ecnh k\u1ebft h\u1ee3p<\/p>\n

\u0110\u1ed1i v\u1edbi qu\u1eb7ng li\u00ean k\u1ebft, qu\u1eb7ng tuy\u1ec3n n\u1ed5i v\u00e0 qu\u1eb7ng ch\u1ecbu l\u1eeda c\u00f3 l\u1edbp ph\u1ee7 kho\u00e1ng ch\u1ea5t h\u1ea1t m\u1ecbn, vi\u1ec7c thu h\u1ed3i barit b\u1eb1ng m\u1ed9t quy tr\u00ecnh tr\u1ecdng l\u1ef1c ho\u1eb7c t\u00e1ch t\u1eeb t\u00ednh l\u00e0 kh\u00f4ng \u0111\u1ea1t y\u00eau c\u1ea7u v\u00e0 c\u1ea7n c\u00f3 m\u1ed9t quy tr\u00ecnh k\u1ebft h\u1ee3p \u0111\u1ec3 thu h\u1ed3i barit m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. C\u00e1c qu\u00e1 tr\u00ecnh k\u1ebft h\u1ee3p ph\u1ed5 bi\u1ebfn l\u00e0: tuy\u1ec3n n\u1ed5i-tuy\u1ec3n ch\u1ecdn l\u1ea1i, tuy\u1ec3n n\u1ed5i-tr\u1ecdng l\u1ef1c, tuy\u1ec3n n\u1ed5i t\u1eeb t\u00ednh v\u00e0 tuy\u1ec3n n\u1ed5i t\u1eeb t\u00ednh-tuy\u1ec3n ch\u1ecdn l\u1ea1i-tuy\u1ec3n n\u1ed5i.<\/p>\n","protected":false},"excerpt":{"rendered":"

Barit th\u01b0\u1eddng \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u1edbi c\u00e1c kho\u00e1ng ch\u1ea5t nh\u01b0 th\u1ea1ch anh, canxit, dolomit, fluorit, siderit, rhodochrosit, pyrit, galena v\u00e0 sphalerit. Trong c\u00e1c m\u1ecf nh\u01b0 b\u1ea1c v\u00e0 \u0111\u1ea5t hi\u1ebfm, barit th\u01b0\u1eddng l\u00e0 m\u1ed9t lo\u1ea1i kho\u00e1ng v\u1eadt ph\u1ed5 bi\u1ebfn. Do \u0111\u00f3, qu\u00e1 tr\u00ecnh ph\u00e2n lo\u1ea1i barit b\u1ecb h\u1ea1n ch\u1ebf b\u1edfi c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 lo\u1ea1i tr\u1ea7m t\u00edch, th\u00e0nh ph\u1ea7n kho\u00e1ng ch\u1ea5t, v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a c\u00e1c pha barit v\u00e0 gangue.<\/p>\n

Hi\u1ec7n t\u1ea1i, c\u00e1c c\u00f4ng ngh\u1ec7 l\u00e0m s\u1ea1ch v\u00e0 th\u1ee5 h\u01b0\u1edfng barit ch\u1ee7 y\u1ebfu bao g\u1ed3m t\u00e1ch tay, t\u00e1ch tr\u1ecdng l\u1ef1c, t\u00e1ch t\u1eeb t\u00ednh, tuy\u1ec3n n\u1ed5i v\u00e0 c\u00e1c quy tr\u00ecnh k\u1ebft h\u1ee3p.<\/p>\n","protected":false},"author":7,"featured_media":118023,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-118047","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\/118047","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=118047"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/118047\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/118023"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=118047"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=118047"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=118047"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}