{"id":6634,"date":"2026-01-22T17:47:21","date_gmt":"2026-01-22T09:47:21","guid":{"rendered":"https:\/\/www.chinanhd.com\/?p=6634"},"modified":"2026-01-26T11:41:28","modified_gmt":"2026-01-26T03:41:28","slug":"how-large-scale-rotary-table-vacuum-filter-boosts-phosphoric-acid-production","status":"publish","type":"post","link":"https:\/\/www.chinanhd.com\/vi\/how-large-scale-rotary-table-vacuum-filter-boosts-phosphoric-acid-production\/","title":{"rendered":"B\u1ed9 l\u1ecdc ch\u00e2n kh\u00f4ng b\u00e0n quay quy m\u00f4 l\u1edbn l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 t\u0103ng s\u1ea3n xu\u1ea5t axit phosphoric"},"content":{"rendered":"

\"S\u1ea3nKhi nhu c\u1ea7u ph\u00e2n b\u00f3n to\u00e0n c\u1ea7u ti\u1ebfp t\u1ee5c t\u0103ng, s\u1ea3n xu\u1ea5t axit phosphoric trong qu\u00e1 tr\u00ecnh \u01b0\u1edbt<\/b><\/strong>N \u0111\u00e3 tr\u1edf th\u00e0nh n\u1ec1n t\u1ea3ng c\u1ee7a n\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i, cung c\u1ea5p h\u01a1n 90% axit phosphoric \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u00ean to\u00e0n th\u1ebf gi\u1edbi. V\u1edbi d\u00e2n s\u1ed1 th\u1ebf gi\u1edbi v\u01b0\u1ee3t qu\u00e1 8 t\u1ef7 v\u00e0 gi\u00e1 ph\u00e2n b\u00f3n dao \u0111\u1ed9ng do s\u1ef1 gi\u00e1n \u0111o\u1ea1n chu\u1ed7i cung \u1ee9ng nh\u01b0 cu\u1ed9c kh\u1ee7ng ho\u1ea3ng Ukraine, l\u1ecdc axit phosphoric hi\u1ec7u qu\u1ea3 v\u00e0 t\u00e1ch r\u1eafn-l\u1ecfng<\/b><\/u><\/strong><\/a>\u00a0\u0111\u00e3 n\u1ed5i l\u00ean nh\u01b0 c\u00e1c y\u1ebfu t\u1ed1 quan tr\u1ecdng trong vi\u1ec7c \u0111\u1ea3m b\u1ea3o s\u1ea3n l\u01b0\u1ee3ng ph\u00e2n b\u00f3n \u1ed5n \u0111\u1ecbnh v\u00e0 an ninh l\u01b0\u01a1ng th\u1ef1c.<\/p>\n

Trong c\u00e1c nh\u00e0 m\u00e1y axit phosphoric \u01b0\u1edbt, hi\u1ec7u qu\u1ea3 t\u00e1ch tr\u1ef1c ti\u1ebfp x\u00e1c \u0111\u1ecbnh n\u0103ng su\u1ea5t s\u1ea3n xu\u1ea5t, chi ph\u00ed v\u1eadn h\u00e0nh v\u00e0 \u0111\u1ed9 tin c\u1eady t\u1ed5ng th\u1ec3 c\u1ee7a nh\u00e0 m\u00e1y. M\u1ea3nh n\u00e0y l\u1eb7n v\u00e0o nh\u1eefng tr\u1edf ng\u1ea1i c\u1ee7a s\u1ef1 t\u00e1ch r\u1eafn-l\u1ecfng trong s\u1ea3n xu\u1ea5t ph\u00e2n b\u00f3n ph\u1ed1t phat v\u00e0 l\u00e0m n\u1ed5i b\u1eadt c\u00e1ch quy m\u00f4 l\u1edbn c\u1ee7a Trung Qu\u1ed1c c\u00f4ng ngh\u1ec7 l\u1ecdc ch\u00e2n kh\u00f4ng b\u00e0n quay<\/b><\/strong>- m\u1edf r\u1ed9ng t\u1eeb 160m\u00b2 l\u00ean 380m\u00b2 - \u0111\u00e3 thay \u0111\u1ed5i tr\u00f2 ch\u01a1i. D\u1ef1a tr\u00ean c\u00e1c con s\u1ed1 c\u00f4ng nghi\u1ec7p th\u1ef1c s\u1ef1, ch\u00fang t\u00f4i’ s\u1ebd th\u1ea5y t\u00e1c \u0111\u1ed9ng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn c\u00e1c d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t v\u00e0 n\u00f4ng nghi\u1ec7p to\u00e0n c\u1ea7u.<\/p>\n

T\u1ea1i sao axit phosphoric \u01b0\u1edbt th\u1ed1ng tr\u1ecb s\u1ea3n xu\u1ea5t ph\u00e2n b\u00f3n phosphate<\/strong><\/h2>\n

Con \u0111\u01b0\u1eddng quy tr\u00ecnh \u01b0\u1edbt \u0111\u00e3 ti\u1ebfp qu\u1ea3n s\u1ea3n xu\u1ea5t ph\u00e2n b\u00f3n ph\u1ed1t phat v\u00ec l\u00fd do t\u1ed1t. N\u00f3 x\u1eed l\u00fd kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn v\u1edbi chi ph\u00ed th\u1ea5p h\u01a1n, ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee7a n\u00f4ng d\u00e2n tr\u00ean to\u00e0n th\u1ebf gi\u1edbi d\u1ef1a v\u00e0o \u0111\u1ea7u v\u00e0o gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng. Nh\u01b0ng s\u1ef1 th\u1ed1ng tr\u1ecb n\u00e0y kh\u00f4ng’ t x\u1ea3y ra do tai n\u1ea1n; Thay v\u00e0o \u0111\u00f3, n\u00f3 l\u00e0 k\u1ebft qu\u1ea3 c\u1ee7a nh\u1eefng l\u1ee3i th\u1ebf r\u00f5 r\u00e0ng trong kinh t\u1ebf s\u1ea3n xu\u1ea5t v\u00e0 s\u1ef1 ph\u00f9 h\u1ee3p c\u1ee7a th\u1ecb tr\u01b0\u1eddng, m\u1eb7c d\u00f9 nh\u1eefng th\u00e1ch th\u1ee9c k\u1ef9 thu\u1eadt v\u1ed1n c\u00f3 trong qu\u00e1 tr\u00ecnh.<\/p>\n

L\u1ee3i th\u1ebf chi ph\u00ed so v\u1edbi quy tr\u00ecnh nhi\u1ec7t<\/strong><\/h3>\n

Qu\u00e1 tr\u00ecnh \u01b0\u1edbt n\u1ed5i b\u1eadt v\u00ec n\u00f3 c\u1eaft gi\u1ea3m h\u00f3a \u0111\u01a1n n\u0103ng l\u01b0\u1ee3ng v\u00e0 nhu c\u1ea7u nguy\u00ean li\u1ec7u th\u00f4. Kh\u00f4ng gi\u1ed1ng nh\u01b0 ph\u01b0\u01a1ng ph\u00e1p nhi\u1ec7t, l\u00e0m n\u00f3ng \u0111\u00e1 ph\u1ed1t phat \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 h\u00fat \u0111i\u1ec7n, qu\u00e1 tr\u00ecnh \u01b0\u1edbt s\u1eed d\u1ee5ng axit sulfuric \u0111\u1ec3 h\u00f2a tan \u0111\u00e1 \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng. \u0110i\u1ec1u n\u00e0y gi\u1eef cho chi ph\u00ed v\u1eadn h\u00e0nh th\u1ea5p - th\u01b0\u1eddng \u00edt h\u01a1n 50% so v\u1edbi c\u00e1c thi\u1ebft l\u1eadp nhi\u1ec7t. V\u00ed d\u1ee5, s\u1ea3n xu\u1ea5t m\u1ed9t t\u1ea5n axit ph\u1ed1t pho th\u00f4ng qua qu\u00e1 tr\u00ecnh \u01b0\u1edbt c\u00f3 th\u1ec3 t\u1ed1n kho\u1ea3ng 200 \u0111\u1ebfn 300 \u0111\u00f4 la, trong khi nhi\u1ec7t c\u00f3 th\u1ec3 \u0111\u1ea1t 500 \u0111\u00f4 la ho\u1eb7c nhi\u1ec1u h\u01a1n. C\u00e1c nh\u00e0 m\u00e1y ti\u1ebft ki\u1ec7m nhi\u00ean li\u1ec7u l\u1edbn, t\u0103ng l\u00ean khi ch\u1ea1y 24\/7. Nh\u1eefng kho\u1ea3n ti\u1ebft ki\u1ec7m n\u00e0y \u0111\u01b0\u1ee3c chuy\u1ec3n sang n\u00f4ng d\u00e2n, l\u00e0m cho ph\u00e2n b\u00f3n r\u1ebb h\u01a1n v\u00e0 d\u1ec5 ti\u1ebfp c\u1eadn h\u01a1n. K\u1ebft qu\u1ea3 l\u00e0, kho\u1ea3ng 85% axit ph\u1ed1t pho cho ph\u00e2n b\u00f3n \u0111\u1ebfn theo c\u00e1ch n\u00e0y. C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t \u1edf c\u00e1c n\u1ec1n kinh t\u1ebf n\u00f4ng nghi\u1ec7p l\u1edbn nh\u01b0 Trung Qu\u1ed1c v\u00e0 Hoa K\u1ef3 \u0111\u00e3 \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1ec3 m\u1edf r\u1ed9ng s\u1ea3n l\u01b0\u1ee3ng m\u00e0 kh\u00f4ng ph\u00e1 v\u1ee1 ng\u00e2n h\u00e0ng.<\/p>\n

Nhu c\u1ea7u th\u1ecb tr\u01b0\u1eddng cho ph\u00e2n b\u00f3n s\u1ed1 l\u01b0\u1ee3ng l\u1edbn<\/strong><\/h3>\n

Nhu c\u1ea7u v\u1ec1 ph\u00e2n b\u00f3n s\u1ed1 l\u01b0\u1ee3ng l\u1edbn ti\u1ebfp t\u1ee5c th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh \u01b0\u1edbt. Kho\u1ea3ng 90% axit ph\u1ed1t pho k\u1ebft th\u00fac trong ph\u00e2n b\u00f3n ph\u1ed1t pho, m\u00e0 n\u00f4ng d\u00e2n lan r\u1ed9ng tr\u00ean c\u00e1c c\u00e1nh \u0111\u1ed3ng r\u1ed9ng l\u1edbn \u0111\u1ec3 tr\u1ed3ng ng\u00f4, l\u00faa m\u00ec v\u00e0 g\u1ea1o. Th\u1ecb tr\u01b0\u1eddng \u0111\u00f2i h\u1ecfi l\u01b0\u1ee3ng l\u1edbn - s\u1ea3n l\u01b0\u1ee3ng to\u00e0n c\u1ea7u \u0111\u1ea1t 50 tri\u1ec7u t\u1ea5n m\u1ed7i n\u0103m. Axit phosphoric quy tr\u00ecnh \u01b0\u1edbt \u0111\u00e1p \u1ee9ng \u0111i\u1ec1u n\u00e0y b\u1eb1ng c\u00e1ch d\u1ec5 d\u00e0ng m\u1edf r\u1ed9ng \u0111\u1ebfn c\u00e1c nh\u00e0 m\u00e1y l\u1edbn, t\u1ea1o ra axit cho ph\u00e2n b\u00f3n nh\u01b0 DAP v\u00e0 MAP. \u1ede nh\u1eefng n\u01a1i nh\u01b0 Brazil v\u00e0 \u1ea4n \u0110\u1ed9, n\u01a1i n\u00f4ng nghi\u1ec7p nu\u00f4i d\u01b0\u1ee1ng c\u00e1c n\u1ec1n kinh t\u1ebf, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y gi\u1eef ngu\u1ed3n cung \u1ed5n \u0111\u1ecbnh. Axit nhi\u1ec7t, tinh khi\u1ebft h\u01a1n nh\u01b0ng \u0111\u1eaft h\u01a1n, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng th\u00edch h\u1ee3p nh\u01b0 ph\u1ee5 gia th\u1ef1c ph\u1ea9m ho\u1eb7c \u0111i\u1ec7n t\u1eed. Nh\u01b0ng \u0111\u1ed1i v\u1edbi nhu c\u1ea7u s\u1ed1 l\u01b0\u1ee3ng l\u1edbn, qu\u00e1 tr\u00ecnh \u01b0\u1edbt gi\u00e0nh chi\u1ebfn th\u1eafng. N\u00f3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1ch trang tr\u1ea1i th\u1ebf gi\u1edbi ng\u00e0y nay, h\u1ed7 tr\u1ee3 n\u0103ng su\u1ea5t \u0111\u00e3 t\u0103ng g\u1ea5p \u0111\u00f4i k\u1ec3 t\u1eeb nh\u1eefng n\u0103m 1960 nh\u1edd ph\u00e2n b\u00f3n t\u1ed1t h\u01a1n.<\/p>\n

Th\u01b0\u01a1ng m\u1ea1i k\u1ef9 thu\u1eadt trong s\u1ea3n xu\u1ea5t quy tr\u00ecnh \u01b0\u1edbt<\/strong><\/h3>\n

M\u1ed7i l\u1ee3i nhu\u1eadn \u0111\u1ec1u c\u00f3 m\u1ed9t m\u1eb7t flip. Qu\u00e1 tr\u00ecnh \u01b0\u1edbt t\u1ea1o ra axit kh\u00f4ng tinh khi\u1ebft v\u1edbi r\u1ea5t nhi\u1ec1u ch\u1ea5t r\u1eafn, g\u00e2y \u00e1p l\u1ef1c n\u1eb7ng tr\u00ean thi\u1ebft b\u1ecb l\u1ecdc ch\u1ea5t r\u1eafn-l\u1ecfng. B\u00f9n t\u1eeb ph\u1ea3n \u1ee9ng d\u00e0y v\u00e0 d\u00ednh, \u0111\u1ea7y th\u1ea1ch th\u1ea1ch v\u00e0 c\u00e1c m\u1ea3nh kh\u00e1c l\u00e0m t\u1eafc ngh\u1ebdn h\u1ec7 th\u1ed1ng n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c x\u1eed l\u00fd \u0111\u00fang c\u00e1ch. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 c\u00e1c nh\u00e0 m\u00e1y c\u1ea7n l\u1ecdc axit ph\u1ed1t pho m\u1ea1nh m\u1ebd \u0111\u1ec3 k\u00e9o axit ra m\u00e0 kh\u00f4ng m\u1ea5t qu\u00e1 nhi\u1ec1u. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p ban \u0111\u1ea7u \u0111\u00e3 v\u1eadt l\u1ed9n, d\u1eabn \u0111\u1ebfn th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng v\u00e0 l\u00e3ng ph\u00ed. M\u1eb7c d\u00f9 nh\u1eefng th\u00e1ch th\u1ee9c n\u00e0y, qu\u00e1 tr\u00ecnh \u01b0\u1edbt \u0111\u00e3 duy tr\u00ec v\u1ecb tr\u00ed th\u1ed1ng tr\u1ecb trong s\u1ea3n xu\u1ea5t ph\u00e2n b\u00f3n ph\u1ed1t phat. Thay v\u00e0o \u0111\u00f3, h\u1ecd’ \u0111\u00e3 k\u00edch ho\u1ea1t s\u1ef1 \u0111\u1ed5i m\u1edbi trong l\u1ecdc ch\u00e2n kh\u00f4ng quay<\/b><\/u><\/strong><\/a>bi\u1ebfn nh\u1eefng \u0111i\u1ec3m y\u1ebfu ti\u1ec1m n\u0103ng th\u00e0nh \u0111i\u1ec3m m\u1ea1nh cho c\u00e1c nh\u00e0 m\u00e1y hi\u1ec7n \u0111\u1ea1i.<\/p>\n

Chuy\u1ec3n t\u1eeb l\u00fd do t\u1ea1i sao qu\u00e1 tr\u00ecnh \u01b0\u1edbt d\u1eabn \u0111\u1ebfn, let’ Nh\u00ecn v\u00e0o nh\u1eefng c\u01a1n \u0111au \u0111\u1ea7u th\u1ef1c s\u1ef1 m\u00e0 n\u00f3 g\u00e2y ra trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng h\u00e0ng ng\u00e0y. T\u00e1ch r\u1eafn-l\u1ecfng l\u00e0’ t ch\u1ec9 l\u00e0 m\u1ed9t b\u01b0\u1edbc\u2014it’ s c\u1ed5 bottleneck c\u00f3 th\u1ec3 l\u00e0m ho\u1eb7c ph\u00e1 v\u1ee1 m\u1ed9t nh\u00e0 m\u00e1y’ S hi\u1ec7u qu\u1ea3.<\/p>\n

C\u00e1c <\/strong>Th\u00e1ch th\u1ee9c c\u1ee7a s\u1ef1 t\u00e1ch r\u1eafn-l\u1ecfng trong s\u1ea3n xu\u1ea5t quy tr\u00ecnh \u01b0\u1edbt<\/strong><\/h2>\n

Trong qu\u00e1 tr\u00ecnh \u01b0\u1edbt axit phosphoric, t\u00e1ch ch\u1ea5t r\u1eafn t\u1eeb ch\u1ea5t l\u1ecfng ki\u1ec3m tra gi\u1edbi h\u1ea1n thi\u1ebft b\u1ecb. B\u00f9n’ \u0111\u1ed9 d\u00e0y \u0111\u00f2i h\u1ecfi c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u00e1ng tin c\u1eady \u0111\u1ec3 tr\u00e1nh ch\u1eadm l\u1ea1i. N\u1ebfu kh\u00f4ng c\u00f3 h\u1ec7 th\u1ed1ng l\u1ecdc ch\u1ea5t l\u1ecfng c\u00f4ng nghi\u1ec7p t\u1ed1t, c\u00e1c nh\u00e0 m\u00e1y ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi chi ph\u00ed cao h\u01a1n v\u00e0 n\u0103ng su\u1ea5t th\u1ea5p h\u01a1n.<\/p>\n

\"Ph\u00e2n\u0110\u1ed1i ph\u00f3 v\u1edbi b\u00f9n d\u00e0y<\/strong><\/h3>\n

B\u00f9n d\u00e0y l\u00e0 v\u1ea5n \u0111\u1ec1 c\u1ed1t l\u00f5i trong qu\u00e1 tr\u00ecnh axit ph\u1ed1t phoric \u01b0\u1edbt. Khi \u0111\u00e1 ph\u1ed1t phat g\u1eb7p axit l\u01b0u hu\u1ef3nh, n\u00f3 t\u1ea1o th\u00e0nh m\u1ed9t h\u1ed7n h\u1ee3p m\u00e0’ s 30-40% ch\u1ea5t r\u1eafn, nh\u01b0 tinh th\u1ec3 th\u1ea1ch th\u1ea1ch s\u1ebd \u0111\u1ecbnh c\u01b0 ch\u1eadm. B\u00f9n n\u00e0y b\u00e1m v\u00e0o b\u1ed9 l\u1ecdc, gi\u1ea3m t\u1ef7 l\u1ec7 d\u00f2ng ch\u1ea3y v\u00e0 y\u00eau c\u1ea7u l\u00e0m s\u1ea1ch li\u00ean t\u1ee5c. \u1ede c\u00e1c nh\u00e0 m\u00e1y l\u1edbn, vi\u1ec7c x\u1eed l\u00fd h\u00e0ng ng\u00e0n t\u1ea5n h\u00e0ng ng\u00e0y c\u00f3 ngh\u0129a l\u00e0 b\u1ea5t k\u1ef3 s\u1ef1 ch\u1eadm tr\u1ec5 n\u00e0o trong s\u1ea3n xu\u1ea5t. B\u1ed9 l\u1ecdc ch\u00e2n kh\u00f4ng b\u00e0n hi\u1ec7u qu\u1ea3 ph\u1ea3i k\u00e9o m\u1ed9t ch\u00e2n kh\u00f4ng \u0111\u1ee7 m\u1ea1nh \u0111\u1ec3 r\u00fat axit trong khi \u0111\u1ec3 l\u1ea1i c\u00e1c ch\u1ea5t r\u1eafn ph\u00eda sau. N\u1ebfu kh\u00f4ng, \u0111\u1ed9 tinh khi\u1ebft axit gi\u1ea3m, v\u00e0 c\u1ea7n ph\u1ea3i l\u00e0m l\u1ea1i nhi\u1ec1u h\u01a1n.<\/p>\n

C\u00e1c v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn c\u1ee7a thi\u1ebft b\u1ecb s\u1edbm<\/strong><\/h3>\n

Thi\u1ebft b\u1ecb l\u1ecdc ch\u1ea5t l\u1ecfng r\u1eafn s\u1edbm th\u01b0\u1eddng b\u1ecb thi\u1ebfu. Nhi\u1ec1u b\u1ed9 l\u1ecdc ch\u00e2n kh\u00f4ng c\u0169 h\u01a1n, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u1ed9 l\u1ecdc nghi\u00eang quy m\u00f4 k\u00e9m, v\u1edbi k\u00edch th\u01b0\u1edbc b\u1ecb m\u1eafc k\u1eb9t d\u01b0\u1edbi 100m\u00b2, d\u1eabn \u0111\u1ebfn c\u00e1c kh\u1ed1i th\u01b0\u1eddng xuy\u00ean t\u1eeb s\u1ef1 t\u00edch t\u1ee5 th\u1ea1ch th\u1ea1ch. C\u00e1c v\u00f2i phun s\u1ebd t\u1eafc ngh\u1ebdn, van s\u1ebd m\u1edf r\u1ed9ng, v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn b\u1ecb m\u00f2n nhanh trong \u0111i\u1ec1u ki\u1ec7n axit. C\u00e1c \u0111\u1ed9i b\u1ea3o tr\u00ec \u0111\u00e3 d\u00e0nh nhi\u1ec1u gi\u1edd \u0111\u1ec3 s\u1eeda ch\u1eefa c\u00e1c v\u1ea5n \u0111\u1ec1, c\u1eaft gi\u1ea3m th\u1eddi gian ch\u1ea1y \u0111\u1ebfn 70-80% kh\u1ea3 n\u0103ng s\u1eb5n c\u00f3. Trong nh\u1eefng n\u0103m 1990, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t qu\u1ed1c t\u1ebf th\u1ed1ng tr\u1ecb c\u00f4ng ngh\u1ec7 l\u1ecdc ch\u00e2n kh\u00f4ng b\u00e0n quay l\u1edbn, nh\u01b0ng thi\u1ebft b\u1ecb c\u1ee7a h\u1ecd \u0111i k\u00e8m v\u1edbi th\u1eddi gian ch\u1edd \u0111\u1ee3i d\u00e0i - l\u00ean \u0111\u1ebfn m\u1ed9t n\u0103m - v\u00e0 gi\u00e1 cao, h\u01a1n 1 tri\u1ec7u \u0111\u00f4 la m\u1ed7i \u0111\u01a1n v\u1ecb. Do c\u00e1c l\u1ef1a ch\u1ecdn trong n\u01b0\u1edbc h\u1ea1n ch\u1ebf, c\u00e1c nh\u00e0 m\u00e1y \u1edf nhi\u1ec1u khu v\u1ef1c \u0111\u00e3 ph\u1ea3i d\u1ef1a v\u00e0o nh\u1eadp kh\u1ea9u. Nh\u1eefng khi\u1ebfm khuy\u1ebft n\u00e0y kh\u00f4ng ch\u1ec9 l\u00e0m t\u0103ng chi ph\u00ed s\u1eeda ch\u1eefa m\u00e0 c\u00f2n h\u1ea1n ch\u1ebf l\u01b0\u1ee3ng axit phosphoric m\u00e0 m\u1ed9t \u0111\u1ecba \u0111i\u1ec3m c\u00f3 th\u1ec3 s\u1ea3n xu\u1ea5t h\u00e0ng n\u0103m.<\/p>\n

T\u00e1c \u0111\u1ed9ng \u0111\u1ebfn kinh t\u1ebf s\u1ea3n xu\u1ea5t<\/strong><\/h3>\n

S\u1ef1 t\u00e1ch r\u1eddi k\u00e9m \u0111\u00e1nh v\u00e0o v\u00ed kh\u00f3 kh\u0103n. Khi l\u1ecdc \u0111\u1ea7m xu\u1ed1ng, nh\u00e0 m\u00e1y m\u1ea5t s\u1ea3n l\u01b0\u1ee3ng - m\u1ed9t c\u01a1 s\u1edf 200kt \/ m\u1ed9t c\u00f3 th\u1ec3 gi\u1ea3m c\u00f4ng su\u1ea5t 10-15% t\u1eeb th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng, chuy\u1ec3n th\u00e0nh h\u00e0ng tri\u1ec7u doanh thu b\u1ecb m\u1ea5t. S\u1eed d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng t\u0103ng cao khi m\u00e1y b\u01a1m l\u00e0m vi\u1ec7c ch\u0103m ch\u1ec9 h\u01a1n, v\u00e0 ti\u00eau th\u1ee5 n\u01b0\u1edbc t\u0103ng l\u00ean \u0111\u1ec3 r\u1eeda th\u00eam. Trong s\u1ea3n xu\u1ea5t ph\u00e2n b\u00f3n ph\u1ed1t phat, n\u01a1i l\u1ee3i nhu\u1eadn m\u1ecfng, c\u00e1c chi ph\u00ed n\u00e0y t\u0103ng l\u00ean nhanh ch\u00f3ng. M\u1ed9t nghi\u00ean c\u1ee9u cho th\u1ea5y c\u00e1c h\u1ec7 th\u1ed1ng kh\u00f4ng hi\u1ec7u qu\u1ea3 c\u00f3 th\u1ec3 l\u00e0m t\u0103ng chi ph\u00ed m\u1ed7i t\u1ea5n 20%. Ngo\u00e0i ti\u1ec1n b\u1ea1c, n\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn chu\u1ed7i cung \u1ee9ng, tr\u00ec ho\u00e3n ph\u00e2n b\u00f3n \u0111\u1ebfn trang tr\u1ea1i trong m\u00f9a tr\u1ed3ng. Gi\u1ea3i quy\u1ebft nh\u1eefng \u0111i\u1ec1u n\u00e0y \u0111\u00e3 l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 l\u00e0m cho qu\u00e1 tr\u00ecnh \u01b0\u1edbt c\u00f3 kh\u1ea3 n\u0103ng \u1edf quy m\u00f4 l\u1edbn. V\u1edbi nh\u1eefng th\u00e1ch th\u1ee9c n\u00e0y trong t\u00e2m tr\u00ed, m\u1ed9t c\u00f4ng ty Trung Qu\u1ed1c \u0111\u00e3 gi\u1ea3i quy\u1ebft ch\u00fang tr\u1ef1c ti\u1ebfp.<\/p>\n

Nh\u1eefng \u0111\u1ed9t ph\u00e1 trong c\u00f4ng ngh\u1ec7 l\u1ecdc ch\u00e2n kh\u00f4ng b\u00e0n quay t\u1eeb NHD<\/strong><\/h2>\n

NHD \u0111\u00e3 \u0111\u1ea9y ranh gi\u1edbi trong l\u1ecdc ch\u00e2n kh\u00f4ng quay \u0111\u1ec3 l\u1ecdc axit phosphoric. B\u1eaft \u0111\u1ea7u t\u1eeb \u0111\u1ea7u nh\u1eefng n\u0103m 2000, thi\u1ebft k\u1ebf c\u1ee7a ch\u00fang t\u00f4i gi\u1ea3i quy\u1ebft c\u00e1c \u0111i\u1ec3m \u0111au nh\u01b0 m\u1edf r\u1ed9ng v\u00e0 b\u1ea3o tr\u00ec. Nh\u1eefng b\u01b0\u1edbc n\u00e0y kh\u00f4ng ch\u1ec9 t\u0103ng k\u00edch th\u01b0\u1edbc m\u00e0 c\u00f2n lan r\u1ed9ng s\u1eed d\u1ee5ng cho c\u00e1c l\u0129nh v\u1ef1c m\u1edbi. \u1ede \u0111\u00e2y’ S L\u00e0m th\u1ebf n\u00e0o ch\u00fang t\u00f4i \u0111\u00e3 l\u00e0m \u0111i\u1ec1u \u0111\u00f3.<\/p>\n

\"B\u1ed9M\u1edf r\u1ed9ng nhu c\u1ea7u c\u00f4ng nghi\u1ec7p<\/strong><\/h3>\n

NHD b\u1eaft \u0111\u1ea7u v\u1edbi b\u1ed9 l\u1ecdc ch\u00e2n kh\u00f4ng b\u00e0n quay 160m\u00b2 v\u00e0o n\u0103m 2002, Trung Qu\u1ed1c ’ M\u00f4 h\u00ecnh n\u1ed9i \u0111\u1ecba l\u1edbn \u0111\u1ea7u ti\u00ean cho axit phosphoric. \u0110i\u1ec1u n\u00e0y ph\u00e1 v\u1ee1 s\u1ef1 ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c nh\u00e0 cung c\u1ea5p n\u01b0\u1edbc ngo\u00e0i v\u00e0 c\u1eaft gi\u1ea3m chi ph\u00ed. V\u00e0 ch\u00fang t\u00f4i kh\u00f4ng’ t d\u1eebng l\u1ea1i \u0111\u00f3 - thi\u1ebft k\u1ebf t\u0103ng l\u00ean 320m\u00b2 cho c\u00e1c d\u1ef1 \u00e1n nh\u01b0 Guizhou Kailin ’ s 600kt \/ m\u1ed9t nh\u00e0 m\u00e1y, v\u00e0 b\u00e2y gi\u1edd \u0111\u1ea1t kh\u1ea3 n\u0103ng thi\u1ebft k\u1ebf 380m\u00b2. C\u00e1c khu v\u1ef1c l\u1edbn h\u01a1n c\u00f3 ngh\u0129a l\u00e0 x\u1eed l\u00fd b\u00f9n nhi\u1ec1u h\u01a1n, t\u0103ng s\u1ea3n l\u01b0\u1ee3ng 50-100% m\u1ed7i \u0111\u01a1n v\u1ecb. Trong qu\u00e1 tr\u00ecnh \u01b0\u1edbt axit phosphoric, \u0111i\u1ec1u n\u00e0y quy m\u00f4 c\u00e2y l\u00ean h\u00e0ng tri\u1ec7u t\u1ea5n m\u1ed7i n\u0103m. Hi\u1ec7n nay c\u00f3 h\u01a1n 300 l\u1eafp \u0111\u1eb7t tr\u00ean to\u00e0n th\u1ebf gi\u1edbi, ch\u1ee9ng minh \u0111\u1ed9 tin c\u1eady trong \u0111i\u1ec1u ki\u1ec7n kh\u00f3 kh\u0103n. S\u1ef1 t\u0103ng tr\u01b0\u1edfng n\u00e0y \u0111\u1ebfn t\u1eeb k\u1ef9 thu\u1eadt th\u00f4ng minh, nh\u01b0 c\u00e1c c\u1ea5u tr\u00fac h\u1ed7 tr\u1ee3 t\u1ed1t h\u01a1n \u0111\u1ec3 x\u1eed l\u00fd t\u1ea3i l\u1edbn h\u01a1n m\u00e0 kh\u00f4ng m\u1ea5t s\u1ef1 \u1ed5n \u0111\u1ecbnh.<\/p>\n

Nh\u1eefng \u0111\u1ed5i m\u1edbi ch\u00ednh trong thi\u1ebft k\u1ebf<\/strong><\/h3>\n