{"id":6612,"date":"2026-01-15T15:16:14","date_gmt":"2026-01-15T07:16:14","guid":{"rendered":"https:\/\/www.chinanhd.com\/?p=6612"},"modified":"2026-01-16T19:25:53","modified_gmt":"2026-01-16T11:25:53","slug":"fgd-absorber-corrosion-problems-why-special-alloy-outperform-traditional-linings","status":"publish","type":"post","link":"https:\/\/www.chinanhd.com\/vi\/fgd-absorber-corrosion-problems-why-special-alloy-outperform-traditional-linings\/","title":{"rendered":"V\u1ea5n \u0111\u1ec1 \u0103n m\u00f2n ch\u1ea5t h\u1ea5p th\u1ee5 FGD: T\u1ea1i sao h\u1ee3p kim \u0111\u1eb7c bi\u1ec7t v\u01b0\u1ee3t qua l\u00f3t truy\u1ec1n th\u1ed1ng?"},"content":{"rendered":"

\"Nh\u00e0<\/h1>\n

Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, c\u00e1c nh\u00e0 m\u00e1y \u0111i\u1ec7n ch\u1ea1y b\u1eb1ng than tr\u00ean to\u00e0n c\u1ea7u \u0111\u00e3 ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi nhu c\u1ea7u ng\u00e0y c\u00e0ng t\u0103ng \u0111\u1ec3 gi\u1ea3m kh\u00ed th\u1ea3i l\u01b0u hu\u1ef3nh dioxide. V\u00ed d\u1ee5, b\u1ea3n c\u1eadp nh\u1eadt quy \u0111\u1ecbnh FGD n\u0103m 2025 c\u1ee7a \u1ea4n \u0110\u1ed9 ti\u1ebft l\u1ed9 r\u1eb1ng kho\u1ea3ng 78% c\u00e1c \u0111\u01a1n v\u1ecb than \u0111ang v\u1eadt l\u1ed9n \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n tu\u00e2n th\u1ee7 v\u1edbi c\u00e1c thi\u1ebft l\u1eadp hi\u1ec7n c\u00f3. S\u1ef1 thay \u0111\u1ed5i n\u00e0y ch\u1ec9 ra nh\u1eefng m\u1ed1i quan t\u00e2m l\u00e2u d\u00e0i v\u1ec1 hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh c\u1ee7a thi\u1ebft b\u1ecb kh\u1eed l\u01b0u hu\u1ef3nh trong \u0111i\u1ec1u ki\u1ec7n kh\u00f3 kh\u0103n.<\/p>\n

C\u00e1c ph\u01b0\u01a1ng ph\u00e1p FGD \u01b0\u1edbt, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c quy tr\u00ecnh \u0111\u00e1 v\u00f4i-th\u1ea1ch th\u1ea1ch, d\u1eabn \u0111\u1ea7u b\u1edfi v\u00ec ch\u00fang l\u00e0m s\u1ea1ch c\u00e1c ch\u1ea5t \u00f4 nhi\u1ec5m t\u1ed1t. Nh\u01b0ng trong c\u00e1c h\u1ec7 th\u1ed1ng n\u00e0y, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong th\u00e1p h\u1ea5p th\u1ee5 kh\u1eed l\u01b0u hu\u1ef3nh, c\u00e1c thi\u1ebft l\u1eadp l\u00e0 nghi\u00eam tr\u1ecdng - h\u1ed7n h\u1ee3p axit, l\u01b0\u1ee3ng clorua t\u0103ng v\u00e0 s\u1ef1 thay \u0111\u1ed5i trong nhi\u1ec7t m\u00f2n xu\u1ed1ng v\u1eadt li\u1ec7u. L\u1edbp l\u00f3t truy\u1ec1n th\u1ed1ng c\u00f3 xu h\u01b0\u1edbng ph\u00e1 v\u1ee1 nhanh ch\u00f3ng, d\u1eabn \u0111\u1ebfn th\u1eddi gian kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng v\u00e0 chi ph\u00ed s\u1eeda ch\u1eefa d\u1ed1c. \u0110\u00f3 l\u00e0 n\u01a1i v\u1eadt li\u1ec7u l\u00f3t h\u1ee3p kim \u0111\u1eb7c bi\u1ec7t n\u1ed5i b\u1eadt. Ch\u00fang cung c\u1ea5p ph\u00f2ng th\u1ee7 m\u1ea1nh m\u1ebd h\u01a1n ch\u1ed1ng \u0103n m\u00f2n, k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a b\u1ed9 h\u1ea5p th\u1ee5 FGD v\u00e0 gi\u1ea3m chi ph\u00ed trong d\u00e0i h\u1ea1n.<\/p>\n

L\u1ed7 h\u1ed5ng \u1ea9n c\u1ee7a h\u1ec7 th\u1ed1ng l\u00f3t truy\u1ec1n th\u1ed1ng<\/strong><\/h2>\n

C\u00f4ng nh\u00e2n nh\u00e0 m\u00e1y \u0111i\u1ec7n hi\u1ec3u r\u1eb1ng vi\u1ec7c duy tr\u00ec thi\u1ebft b\u1ecb kh\u1eed l\u01b0u hu\u1ef3nh trong h\u00ecnh d\u1ea1ng t\u1ed1t l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 tu\u00e2n th\u1ee7 lu\u1eadt ph\u00e1t th\u1ea3i m\u00e0 kh\u00f4ng chi ti\u00eau qu\u00e1 nhi\u1ec1u. Tuy nhi\u00ean, r\u1ea5t nhi\u1ec1u d\u1ef1a v\u00e0o c\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u01a1 b\u1ea3n c\u00f3 v\u1ebb ph\u1ea3i ch\u0103ng ngay t\u1eeb \u0111\u1ea7u nh\u01b0ng mang theo nh\u1eefng m\u1ed1i nguy hi\u1ec3m l\u1edbn. Trong c\u00e1c s\u1eafp x\u1ebfp kh\u1eed l\u01b0u hu\u1ef3nh kh\u00ed kh\u00f3i \u01b0\u1edbt (FGD), th\u00e1p h\u1ea5p th\u1ee5 kh\u1eed l\u01b0u hu\u1ef3nh x\u1eed l\u00fd c\u00e1c kh\u00ed \u1ea5m \u00e1p, axit pha tr\u1ed9n v\u1edbi h\u1ed7n h\u1ee3p \u0111\u00e1 v\u00f4i. L\u1edbp l\u00f3t cao su truy\u1ec1n th\u1ed1ng th\u01b0\u1eddng th\u1ea5t b\u1ea1i d\u01b0\u1edbi c\u0103ng th\u1eb3ng ho\u1ea1t \u0111\u1ed9ng, d\u1eabn \u0111\u1ebfn n\u1ee9t, r\u00f2 r\u1ec9 v\u00e0 \u0111\u00f3ng c\u1eeda kh\u00f4ng theo l\u1ecbch tr\u00ecnh t\u1ed1n k\u00e9m. S\u1ef1 kh\u00f4ng \u0111\u00e1ng tin c\u1eady n\u00e0y \u0111ang th\u00fac \u0111\u1ea9y ng\u00e0nh c\u00f4ng nghi\u1ec7p h\u01b0\u1edbng t\u1edbi c\u00e1c gi\u1ea3i ph\u00e1p b\u1ec1n v\u1eefng h\u01a1n.<\/p>\n

S\u1ed1c nhi\u1ec7t & Ph\u00e2n l\u1edbp<\/strong><\/h3>\n

Th\u00e1p’ t\u01b0\u1eddng b\u1eaft \u0111\u1ea7u v\u1edbi th\u00e9p carbon, d\u1ec5 d\u00e0ng r\u1ec9 trong \u0111i\u1ec1u ki\u1ec7n axit. \u0110\u1ec3 ch\u1ed1ng l\u1ea1i \u0111i\u1ec1u n\u00e0y, c\u00f4ng nh\u00e2n th\u00eam m\u1ed9t l\u00f3t cao su \u0111\u1ec3 ch\u1ed1ng \u0103n m\u00f2n. L\u00fac \u0111\u1ea7u n\u00f3 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t. Nh\u01b0ng cao su ph\u00e1 h\u1ee7y nhanh ch\u00f3ng - th\u01b0\u1eddng ch\u1ec9 trong hai n\u0103m ho\u1eb7c \u00edt h\u01a1n, \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u1edbi c\u00e1c ion clorua v\u00e0 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9. Chu k\u1ef3 nhi\u1ec7t nhanh ch\u00f3ng (50 \u00b0 C \u0111\u1ebfn > 100 \u00b0 C) g\u00e2y ra s\u1ef1 m\u1edf r\u1ed9ng kh\u00e1c bi\u1ec7t gi\u1eefa cao su v\u00e0 th\u00e9p, d\u1eabn \u0111\u1ebfn s\u1ef1 ph\u00e2n t\u00e1n kh\u00f4ng th\u1ec3 tr\u00e1nh kh\u1ecfi.<\/p>\n

M\u1ed9t khi b\u1ecb t\u00e1ch, \u0103n m\u00f2n t\u1ea5n c\u00f4ng c\u01a1 s\u1edf th\u00e9p c\u1ee9ng. Nh\u00e0 m\u00e1y ph\u1ea3i \u0111\u00f3ng c\u1eeda \u0111\u1ec3 s\u1eeda ch\u1eefa: c\u1ea1o cao su x\u1ea5u, l\u00e0m s\u1ea1ch b\u1ec1 m\u1eb7t v\u00e0 \u00e1p d\u1ee5ng c\u00e1c l\u1edbp m\u1edbi. C\u00f4ng vi\u1ec7c n\u00e0y m\u1ea5t m\u1ed9t \u0111\u1ebfn hai th\u00e1ng, d\u1eebng s\u1ea3n l\u01b0\u1ee3ng \u0111i\u1ec7n. Trong m\u1ed9t nghi\u00ean c\u1ee9u, l\u1edbp l\u00f3t cao su trong c\u00e1c nh\u00e0 m\u00e1y ch\u1ea1y b\u1eb1ng ng\u00e2n th\u1ea1ch k\u00e9o d\u00e0i d\u01b0\u1edbi 10 n\u0103m, ng\u1eafn h\u01a1n nhi\u1ec1u so v\u1edbi 20-30 n\u0103m c\u1ea7n thi\u1ebft cho d\u1ecbch v\u1ee5 \u0111\u00e1ng tin c\u1eady. Th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng t\u0103ng l\u00ean - t\u01b0\u1edfng t\u01b0\u1ee3ng m\u1ea5t 1.000 gi\u1edd m\u1ed9t n\u0103m cho m\u1ed7i \u0111\u01a1n v\u1ecb, c\u1ed9ng v\u1edbi chi ph\u00ed lao \u0111\u1ed9ng kho\u1ea3ng 200.000 \u0111\u00f4 la cho m\u1ed7i s\u1ef1 ki\u1ec7n s\u1eeda ch\u1eefa. Nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y kh\u00f4ng ch\u1ec9 l\u00e0m t\u0103ng h\u00f3a \u0111\u01a1n m\u00e0 c\u00f2n c\u00f3 nguy c\u01a1 ph\u1ea1t m\u00f4i tr\u01b0\u1eddng n\u1ebfu kh\u00ed th\u1ea3i t\u0103ng cao trong th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng. \u0110\u1ed1i v\u1edbi th\u00e1p t\u00e1i t\u1ea1o kh\u1eed l\u01b0u hu\u1ef3nh, c\u00e1c v\u1ea5n \u0111\u1ec1 t\u01b0\u01a1ng t\u1ef1 ph\u00e1t sinh, l\u00e0m cho l\u1edbp l\u00f3t truy\u1ec1n th\u1ed1ng tr\u1edf th\u00e0nh m\u1ed9t c\u1edd b\u1ea1c trong c\u00e1c thi\u1ebft l\u1eadp clorua cao.<\/p>\n

Ch\u1ed1ng \u0103n m\u00f2n v\u00f4 c\u00f9ng c\u1ee7a h\u1ee3p kim \u0111\u1eb7c bi\u1ec7t<\/strong><\/h2>\n

Chuy\u1ec3n t\u1eeb l\u00f3t truy\u1ec1n th\u1ed1ng m\u1edf c\u1eeda cho c\u00e1c v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng cho \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t. C\u00e1c v\u1eadt li\u1ec7u l\u00f3t h\u1ee3p kim \u0111\u1eb7c bi\u1ec7t n\u1ed5i b\u1eadt trong m\u00f4i tr\u01b0\u1eddng FGD \u01b0\u1edbt, n\u01a1i axit, clorua v\u00e0 ch\u1ea5t m\u00e0i m\u00f2n h\u1ee3p t\u00e1c v\u1edbi thi\u1ebft b\u1ecb. Kh\u00f4ng gi\u1ed1ng nh\u01b0 cao su ho\u1eb7c l\u1edbp ph\u1ee7 c\u01a1 b\u1ea3n, c\u00e1c h\u1ee3p kim n\u00e0y li\u00ean k\u1ebft ch\u1eb7t ch\u1ebd v\u00e0 ch\u1ed1ng l\u1ea1i s\u1ef1 ph\u00e1 v\u1ee1 trong nhi\u1ec1u th\u1eadp k\u1ef7. Ch\u00fang ph\u00f9 h\u1ee3p ho\u00e0n h\u1ea3o trong th\u00e1p h\u1ea5p th\u1ee5 kh\u1eed l\u01b0u hu\u1ef3nh v\u00e0 th\u00e1p t\u00e1i t\u1ea1o, x\u1eed l\u00fd b\u00f9n ’ pH dao \u0111\u1ed9ng t\u1eeb 4 \u0111\u1ebfn 6 m\u00e0 kh\u00f4ng c\u00f3 l\u1ed7 ho\u1eb7c n\u1ee9t. C\u00e1c nh\u00e0 m\u00e1y chuy\u1ec3n \u0111\u1ed5i th\u01b0\u1eddng th\u1ea5y \u00edt s\u1eeda ch\u1eefa h\u01a1n v\u00e0 ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh h\u01a1n. S\u1ef1 kh\u00e1ng n\u00e0y \u0111\u1ebfn t\u1eeb trang \u0111i\u1ec3m c\u1ee7a ch\u00fang - m\u1ee9c \u0111\u1ed9 niken, molibden v\u00e0 cr\u00f4m cao t\u1ea1o th\u00e0nh c\u00e1c l\u1edbp b\u1ea3o v\u1ec7.<\/p>\n

Tr\u01b0\u1eddng h\u1ee3p \u1edf \u0111i\u1ec3m: Hastelloy C276 vs. Chloride Ion Corrosion<\/strong><\/h3>\n

C\u00e1c ion clorua l\u00e0 m\u1ed9t k\u1ebb th\u00f9 ch\u00ednh trong c\u00e1c ch\u1ea5t h\u1ea5p th\u1ee5 FGD, t\u1ea5n c\u00f4ng kim lo\u1ea1i v\u00e0 g\u00e2y ra c\u00e1c h\u1ed1 ph\u00e1t tri\u1ec3n th\u00e0nh l\u1ed7. Th\u00e9p carbon truy\u1ec1n th\u1ed1ng ho\u1eb7c th\u1eadm ch\u00ed m\u1ed9t s\u1ed1 th\u00e9p kh\u00f4ng g\u1ec9 kh\u00f3a d\u01b0\u1edbi n\u1ed3ng \u0111\u1ed9 tr\u00ean 10.000 ppm. Nh\u1eadp Hastelloy C276, m\u1ed9t h\u1ee3p kim niken-molybdenum-chromium v\u1edbi vonfram \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng s\u1ee9c m\u1ea1nh. N\u00f3 ph\u00e1t tri\u1ec3n m\u1ea1nh \u1edf c\u00e1c \u0111i\u1ec3m gi\u00e0u clorua, nh\u01b0 b\u1ed9 h\u1ea5p th\u1ee5’ c\u00e1c ph\u1ea7n th\u1ea5p h\u01a1n n\u01a1i b\u00f9n thu th\u1eadp.<\/p>\n

Trong c\u00e1c th\u1eed nghi\u1ec7m, Hastelloy C276 cho th\u1ea5y t\u1ef7 l\u1ec7 \u0103n m\u00f2n d\u01b0\u1edbi 0,1 mm m\u1ed7i n\u0103m trong \u0111i\u1ec1u ki\u1ec7n FGD m\u00f4 ph\u1ecfng, so v\u1edbi h\u01a1n 1 mm cho th\u00e9p ti\u00eau chu\u1ea9n. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 c\u00e1c b\u1ee9c t\u01b0\u1eddng v\u1eabn nguy\u00ean v\u1eb9n l\u00e2u h\u01a1n, gi\u1ea3m nguy c\u01a1 r\u00f2 r\u1ec9. C\u00e1c l\u1ed1i v\u00e0o th\u00e1p h\u1ea5p th\u1ee5 \u1edf c\u00e1c nh\u00e0 m\u00e1y M\u1ef9 v\u00e0 ch\u00e2u \u00c1 s\u1eed d\u1ee5ng n\u00f3 r\u1ed9ng r\u00e3i cho ch\u1ec9 s\u1ed1 ch\u1ed1ng l\u1ed7 tr\u00ean 50 - cao h\u01a1n 30-40 c\u1ee7a c\u00e1c h\u1ee3p kim ph\u1ed5 bi\u1ebfn. C\u00e1c nh\u00e0 m\u00e1y b\u00e1o c\u00e1o 15-20 n\u0103m d\u1ecbch v\u1ee5 m\u00e0 kh\u00f4ng c\u00f3 v\u1ea5n \u0111\u1ec1 l\u1edbn, so v\u1edbi ki\u1ec3m tra h\u00e0ng n\u0103m cho cao su. \u0110\u1ed1i v\u1edbi thi\u1ebft b\u1ecb kh\u1eed l\u01b0u hu\u1ef3nh, h\u1ee3p kim n\u00e0y c\u0169ng c\u1eaft gi\u1ea3m s\u1ef1 x\u00f3i m\u00f2n t\u1eeb c\u00e1c h\u1ea1t th\u1ea1ch th\u1ea1ch, gi\u1eef cho d\u00f2ng ch\u1ea3y tr\u01a1n tru.<\/p>\n

\"L\u1edbp<\/p>\n

S\u1ee9c m\u1ea1nh c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 si\u00eau Austenitic<\/strong><\/h3>\n

Th\u00e9p kh\u00f4ng g\u1ec9 si\u00eau austenitic \u0111\u1ea9y v\u01b0\u1ee3t qu\u00e1 austenitic th\u00f4ng th\u01b0\u1eddng v\u1edbi molybdenum nhi\u1ec1u h\u01a1n (kho\u1ea3ng 6%) \u0111\u1ec3 ph\u00f2ng th\u1ee7 clorua. Trong kh\u1eed l\u01b0u hu\u1ef3nh kh\u00ed kh\u00f3i, ch\u00fang b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i \u0103n m\u00f2n chung v\u00e0 n\u1ee9t c\u0103ng th\u1eb3ng trong m\u00e1y t\u1ea9y \u01b0\u1edbt.<\/p>\n

Nh\u1eefng th\u00e9p n\u00e0y xu\u1ea5t s\u1eafc trong b\u00f9n pH 5-6, n\u01a1i kh\u00f4ng g\u1ec9 316L truy\u1ec1n th\u1ed1ng th\u1ea5t b\u1ea1i trong v\u00f2ng v\u00e0i th\u00e1ng. D\u1eef li\u1ec7u ph\u00f2ng th\u00ed nghi\u1ec7m cho th\u1ea5y t\u1ef7 l\u1ec7 \u0103n m\u00f2n d\u01b0\u1edbi 0,05 mm \/ n\u0103m trong c\u00e1c th\u1eed nghi\u1ec7m clorua cao, nh\u1edd m\u00e0ng th\u1ee5 \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh c\u1ee7a ch\u00fang. H\u1ecd’ re hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed cho c\u00e1c th\u00e1p l\u1edbn, cung c\u1ea5p b\u1ea3o v\u1ec7 t\u01b0\u01a1ng t\u1ef1 cho h\u1ee3p kim niken \u0111\u1eaft h\u01a1n nh\u01b0ng v\u1edbi gi\u00e1 \u0111\u1ea7u ti\u00ean th\u1ea5p h\u01a1n. Trong h\u1ec7 th\u1ed1ng FGD, ch\u00fang d\u00f2ng \u1ed1ng v\u00e0 t\u00e0u, k\u00e9o d\u00e0i 25 n\u0103m.<\/p>\n

Ph\u00e2n t\u00edch ROI: Ti\u1ebft ki\u1ec7m chi ph\u00ed trong v\u00f2ng \u0111\u1eddi trong vi\u1ec7c c\u1ea3i t\u1ea1o FGD<\/strong><\/h2>\n

Ngo\u00e0i hi\u1ec7u su\u1ea5t th\u00f4, chi\u1ebfn th\u1eafng th\u1ef1c s\u1ef1 v\u1edbi h\u1ee3p kim \u0111\u1eb7c bi\u1ec7t n\u1eb1m trong c\u00e1c con s\u1ed1. Trong khi c\u00e1c h\u1ee3p kim \u0111\u1eb7c bi\u1ec7t c\u00f3 \u0111\u1ea7u t\u01b0 ban \u0111\u1ea7u cao g\u1ea5p 2-3 l\u1ea7n so v\u1edbi cao su, l\u1ee3i th\u1ebf chi ph\u00ed v\u00f2ng \u0111\u1eddi c\u1ee7a ch\u00fang th\u01b0\u1eddng mang l\u1ea1i ROI \u0111\u1ea7y \u0111\u1ee7 trong v\u00f2ng 5-7 n\u0103m. \u0110\u1ed1i v\u1edbi th\u00e1p h\u1ea5p th\u1ee5 kh\u1eed l\u01b0u hu\u1ef3nh, \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 c\u00e2n n\u1eb7ng chi ph\u00ed ban \u0111\u1ea7u ch\u1ed1ng l\u1ea1i th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng v\u00e0 s\u1eeda ch\u1eefa. Nhi\u1ec1u nh\u00e0 khai th\u00e1c b\u1ecf qua c\u00e1c chi ph\u00ed \u1ea9n n\u00e0y cho \u0111\u1ebfn khi ch\u00fang \u0111\u1ea1t \u0111\u1ebfn d\u00f2ng \u0111\u00e1y. B\u1eb1ng c\u00e1ch crunching d\u1eef li\u1ec7u, it’ s r\u00f5 r\u00e0ng c\u00e1ch h\u1ee3p kim chuy\u1ec3n s\u1ef1 c\u00e2n b\u1eb1ng h\u01b0\u1edbng t\u1edbi hi\u1ec7u qu\u1ea3.<\/p>\n

X\u00f3a b\u1ecf c\u00e1c chi ph\u00ed \u1ea9n c\u1ee7a th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng l\u1eadp k\u1ebf ho\u1ea1ch<\/strong><\/h3>\n

V\u1edbi l\u00f3t cao su, s\u1ef1 th\u1ea5t b\u1ea1i bu\u1ed9c ph\u1ea3i \u0111\u00f3ng c\u1eeda 4-6 tu\u1ea7n m\u1ed7i hai n\u0103m \u0111\u1ec3 l\u1eafp l\u1ea1i. T\u1ea1i m\u1ed9t \u0111\u01a1n v\u1ecb 700MW, \u0111\u00f3 c\u00f3 th\u1ec3 l\u00e0 1 tri\u1ec7u \u0111\u00f4 la thu nh\u1eadp m\u1ea5t v\u00e0 300.000 \u0111\u00f4 la lao \u0111\u1ed9ng v\u00e0 v\u1eadt li\u1ec7u. H\u1ee3p kim c\u1eaft gi\u1ea3m \u0111i\u1ec1u n\u00e0y - mong \u0111\u1ee3i m\u1ed9t ki\u1ec3m tra l\u1edbn m\u1ed7i 10 n\u0103m.<\/p>\n

Trong FGD \u01b0\u1edbt, th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng do \u0103n m\u00f2n trung b\u00ecnh 500 gi\u1edd m\u1ed7i n\u0103m cho c\u00e1c h\u1ec7 th\u1ed1ng truy\u1ec1n th\u1ed1ng. H\u1ee3p kim gi\u1ea3m n\u00f3 xu\u1ed1ng d\u01b0\u1edbi 100 gi\u1edd, ti\u1ebft ki\u1ec7m 500.000 \u0111\u00f4 la m\u1ed7i n\u0103m trong chi ph\u00ed c\u01a1 h\u1ed9i ri\u00eang. Th\u00eam tu\u00e2n th\u1ee7 m\u00f4i tr\u01b0\u1eddng: \u00edt r\u00f2 r\u1ec9 c\u00f3 ngh\u0129a l\u00e0 ki\u1ec3m so\u00e1t kh\u00ed th\u1ea3i \u1ed5n \u0111\u1ecbnh, tr\u00e1nh ph\u1ea1t l\u00ean \u0111\u1ebfn 100.000 \u0111\u00f4 la m\u1ed7i s\u1ef1 c\u1ed1. \u0110\u1ed1i v\u1edbi th\u00e1p t\u00e1i t\u1ea1o kh\u1eed l\u01b0u hu\u1ef3nh, l\u1edbp l\u00f3t \u1ed5n \u0111\u1ecbnh gi\u1eef cho chu k\u1ef3 t\u00e1i t\u1ea1o kh\u00f4ng b\u1ecb gi\u00e1n \u0111o\u1ea1n, t\u0103ng s\u1ea3n l\u01b0\u1ee3ng nh\u00e0 m\u00e1y t\u1ed5ng th\u1ec3 2-3%.<\/p>\n

Logic \u0111\u1ea7u t\u01b0 \u0111\u1eb1ng sau vi\u1ec7c c\u1ea3i t\u1ea1o \u0111\u01a1n v\u1ecb 6 \u00d7 700MW<\/strong><\/h3>\n

H\u00e3y xem x\u00e9t m\u1ed9t tr\u01b0\u1eddng h\u1ee3p th\u1ef1c t\u1ebf: m\u1ed9t nh\u00e0 m\u00e1y \u0111i\u1ec7n t\u1ec9nh S\u01a1n \u0110\u00f4ng (Trung Qu\u1ed1c) v\u1edbi s\u00e1u \u0111\u01a1n v\u1ecb 700MW. \u0110\u1ed1i m\u1eb7t v\u1edbi \u0103n m\u00f2n trong th\u00e1p h\u1ea5p th\u1ee5 kh\u1eed l\u01b0u hu\u1ef3nh c\u1ee7a n\u00f3, n\u00f3 \u0111\u00e3 ch\u1ecdn l\u1edbp l\u00f3t h\u1ee3p kim \u0111\u1eb7c bi\u1ec7t t\u1eeb NHD<\/b><\/u><\/strong><\/a>. NHD s\u1eed d\u1ee5ng Hastelloy C276 cho c\u00e1c khu v\u1ef1c clorua cao v\u00e0 si\u00eau austenit 1.4529 \u1edf n\u01a1i kh\u00e1c, cung c\u1ea5p t\u1ea5m h\u1ee3p kim 1.4529, m\u1eb7t b\u00edch v\u00e0 \u1ed1ng.<\/p>\n

Vi\u1ec7c c\u1ea3i t\u1ea1o c\u1eaft gi\u1ea3m b\u1ea3o tr\u00ec t\u1eeb hai n\u0103m xu\u1ed1ng c\u00f2n m\u1ed7i 8-10 n\u0103m, ti\u1ebft ki\u1ec7m 1.200 gi\u1edd ng\u1eebng ho\u1ea1t \u0111\u1ed9ng m\u1ed7i \u0111\u01a1n v\u1ecb m\u1ed7i n\u0103m. Chi ph\u00ed gi\u1ea3m 40% trong 20 n\u0103m so v\u1edbi cao su - t\u1ed5ng ti\u1ebft ki\u1ec7m kho\u1ea3ng 10 tri\u1ec7u USD tr\u00ean to\u00e0n nh\u00e0 m\u00e1y. Ngo\u00e0i ra, NHD h\u1ee3p t\u00e1c v\u1edbi Haas Automation \u0111\u1ec3 h\u00e0n ch\u00ednh x\u00e1c, tr\u00e1nh \u00f4 nhi\u1ec5m s\u1eaft g\u00e2y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn l\u1edbp ph\u1ee7 n\u1ed5. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1ea3m b\u1ea3o c\u00e1c tr\u00e1i phi\u1ebfu ch\u1eb7t ch\u1ebd m\u00e0 kh\u00f4ng l\u00e0m suy y\u1ebfu kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n. \u0110\u1ed1i v\u1edbi vi\u1ec7c c\u1ea3i t\u1ea1o th\u00e1p h\u1ea5p th\u1ee5 t\u01b0\u01a1ng t\u1ef1, s\u1ef1 tr\u1ea3 l\u1ea1i \u0111\u1ea1t \u0111\u01b0\u1ee3c trong v\u00f2ng d\u01b0\u1edbi n\u0103m n\u0103m th\u00f4ng qua ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh.<\/p>\n

\"D\u1ef1<\/p>\n

\u0110\u1ed9 tin c\u1eady k\u1ef9 thu\u1eadt NHD t\u1eeb v\u1eadt li\u1ec7u \u0111\u1ebfn l\u1eafp \u0111\u1eb7t<\/strong><\/h2>\n

Ch\u1ecdn \u0111\u00fang \u0111\u1ed1i t\u00e1c quan tr\u1ecdng nh\u01b0 v\u1eadt li\u1ec7u. NHD n\u1ed5i b\u1eadt trong vi\u1ec7c cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p \u0111\u1ea7y \u0111\u1ee7 cho c\u00e1c th\u00e1ch th\u1ee9c kh\u1eed l\u01b0u hu\u1ef3nh kh\u00ed kh\u00f3i (FGD). T\u1eeb nh\u1eb7t h\u1ee3p kim \u0111\u1ebfn c\u00f4ng vi\u1ec7c t\u1ea1i ch\u1ed7, c\u00e1ch ti\u1ebfp c\u1eadn c\u1ee7a ch\u00fang t\u00f4i \u0111\u1ea3m b\u1ea3o thi\u1ebft b\u1ecb kh\u1eed l\u01b0u hu\u1ef3nh k\u00e9o d\u00e0i. Ch\u00fang t\u00f4i t\u1eadp trung v\u00e0o \u01b0\u1edbt FGD’ c\u00e1c \u0111i\u1ec3m kh\u00f3 kh\u0103n, nh\u01b0 th\u00e1p h\u1ea5p th\u1ee5 kh\u1eed l\u01b0u hu\u1ef3nh v\u00e0 th\u00e1p t\u00e1i t\u1ea1o. V\u1edbi nhi\u1ec1u n\u0103m trong l\u0129nh v\u1ef1c n\u00e0y, NHD k\u1ebft h\u1ee3p c\u00f4ng ngh\u1ec7 to\u00e0n c\u1ea7u v\u1edbi ki\u1ebfn th\u1ee9c \u0111\u1ecba ph\u01b0\u01a1ng. D\u1ecbch v\u1ee5 end-to-end n\u00e0y x\u00e2y d\u1ef1ng ni\u1ec1m tin, \u0111\u1eb7c bi\u1ec7t l\u00e0 cho c\u00e1c c\u1ea3i ti\u1ebfn l\u1edbn n\u01a1i chi ti\u1ebft quy\u1ebft \u0111\u1ecbnh th\u00e0nh c\u00f4ng.<\/p>\n

Ch\u1ecdn v\u00e0 l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u ch\u00ednh x\u00e1c b\u1edfi NHD<\/strong><\/h3>\n

NHD b\u1eaft \u0111\u1ea7u v\u1edbi vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u c\u1ea9n th\u1eadn ph\u00f9 h\u1ee3p v\u1edbi m\u1ed7i nh\u00e0 m\u00e1y ’ S \u0111i\u1ec1u ki\u1ec7n. \u0110\u1ed1i v\u1edbi ch\u1ea5t h\u1ea5p th\u1ee5 FGD c\u00f3 clorua cao, ch\u00fang t\u00f4i c\u00f3 ngu\u1ed3n Hastelloy C276 t\u1eeb c\u00e1c nh\u00e0 m\u00e1y \u0111\u00e1ng tin c\u1eady, \u0111\u1ea3m b\u1ea3o t\u1ea1p ch\u1ea5t th\u1ea5p \u0111\u1ec3 ch\u1ed1ng t\u1ed1i \u0111a. Th\u00e9p si\u00eau austenit \u0111\u01b0\u1ee3c ki\u1ec3m tra cho ch\u1ec9 s\u1ed1 l\u1ed7 tr\u00ean 40. V\u00e0 ch\u00fang t\u00f4i ph\u00e2n t\u00edch h\u00f3a h\u1ecdc b\u00f9n - pH, clorua, fluoru - \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi h\u1ee3p kim. Trong d\u1ef1 \u00e1n S\u01a1n \u0110\u00f4ng, \u0111i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn l\u1edbp l\u00f3t h\u1ed7n h\u1ee3p x\u1eed l\u00fd 20.000 ppm clorua m\u00e0 kh\u00f4ng b\u1ecb th\u1ea5t b\u1ea1i.<\/p>\n

NHD’ s Qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t v\u00e0 h\u00e0n \u0111\u1ed9c quy\u1ec1n<\/strong><\/h3>\n

S\u1ea3n xu\u1ea5t t\u1ea1i NHD s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ti\u00ean ti\u1ebfn nh\u01b0 m\u00e1y ti\u1ec7n CNC v\u00e0 m\u00e1y c\u1eaft phun n\u01b0\u1edbc \u0111\u1ec3 ph\u00f9 h\u1ee3p ch\u00ednh x\u00e1c. H\u00e0n c\u1ee7a ch\u00fang t\u00f4i d\u1ef1a tr\u00ean s\u1ef1 h\u1ee3p t\u00e1c c\u1ee7a Haas, s\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p t\u1ef1 \u0111\u1ed9ng \u0111\u1ec3 k\u1ebft h\u1ee3p h\u1ee3p kim m\u00e0 kh\u00f4ng b\u1ecb h\u01b0 h\u1ea1i b\u1edfi nhi\u1ec7t.<\/p>\n

\u0110i\u1ec1u n\u00e0y tr\u00e1nh c\u00e1c b\u1eaby ph\u1ed5 bi\u1ebfn nh\u01b0 \u0103n m\u00f2n h\u00e0n, \u0111\u01b0\u1ee3c nh\u00ecn th\u1ea5y trong c\u00e1c c\u00f4ng vi\u1ec7c th\u1ee7 c\u00f4ng. Trong c\u00e1c th\u00e1p t\u00e1i t\u1ea1o kh\u1eed l\u01b0u hu\u1ef3nh, c\u00e1c khe ch\u00ednh x\u00e1c ng\u0103n ch\u1eb7n r\u00f2 r\u1ec9, k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd l\u00ean 25 n\u0103m. Qu\u00e1 tr\u00ecnh bao g\u1ed3m c\u00e1c th\u1eed nghi\u1ec7m kh\u00f4ng ph\u00e1 h\u1ee7y, \u0111\u1ea3m b\u1ea3o kh\u00f4ng c\u00f3 l\u1ed7i tr\u01b0\u1edbc khi v\u1eadn chuy\u1ec3n.<\/p>\n

Th\u1ef1c hi\u1ec7n t\u1ea1i ch\u1ed7 v\u00e0 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t<\/strong><\/h3>\n

C\u00e1c nh\u00f3m NHD x\u1eed l\u00fd l\u1eafp \u0111\u1eb7t v\u1edbi s\u1ef1 gi\u00e1n \u0111o\u1ea1n t\u1ed1i thi\u1ec3u - th\u01b0\u1eddng trong th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng theo k\u1ebf ho\u1ea1ch. H\u1ecd s\u1eed d\u1ee5ng h\u00e0n c\u1eafm cho l\u00f3t l\u00f3t, th\u00eam s\u1ee9c m\u1ea1nh \u1edf c\u00e1c khu v\u1ef1c kh\u1edbp. Sau khi l\u1eafp \u0111\u1eb7t, NHD cung c\u1ea5p b\u1ea3o h\u00e0nh hi\u1ec7u su\u1ea5t m\u1edf r\u1ed9ng cho b\u1ed9 h\u1ea5p th\u1ee5 FGD. Trong d\u1ef1 \u00e1n S\u01a1n \u0110\u00f4ng, vi\u1ec7c th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c ho\u00e0n th\u00e0nh hi\u1ec7u qu\u1ea3 trong khung th\u1eddi gian d\u1ef1 ki\u1ebfn, \u0111\u1ea1t \u0111\u01b0\u1ee3c ho\u1ea1t \u0111\u1ed9ng b\u1ec1n v\u1eefng, kh\u00f4ng r\u1eafc r\u1ed1i trong d\u00e0i h\u1ea1n. \u0110\u1ed9 tin c\u1eady n\u00e0y cho ph\u00e9p c\u00e1c nh\u00e0 m\u00e1y t\u1eadp trung v\u00e0o s\u1ea3n xu\u1ea5t \u0111i\u1ec7n thay v\u00ec s\u1eeda ch\u1eefa li\u00ean t\u1ee5c.<\/p>\n

K\u1ebft lu\u1eadn<\/strong><\/h2>\n

Trong m\u00f4i tr\u01b0\u1eddng kh\u1eed l\u01b0u hu\u1ef3nh kh\u00ed kh\u00f3i \u01b0\u1edbt kh\u1eafc nghi\u1ec7t, l\u00f3t h\u1ee3p kim \u0111\u1eb7c bi\u1ec7t nh\u01b0 Hastelloy C276 v\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 si\u00eau austenitic v\u01b0\u1ee3t qua c\u00e1c v\u1eadt li\u1ec7u truy\u1ec1n th\u1ed1ng v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 tu\u1ed5i th\u1ecd d\u00e0i. Ch\u00fang k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a b\u1ed9 h\u1ea5p th\u1ee5 FGD v\u00e0 th\u00e1p h\u1ea5p th\u1ee5 kh\u1eed l\u01b0u hu\u1ef3nh<\/b><\/u><\/strong><\/a>20-30 n\u0103m, gi\u1ea3m thi\u1ec3u th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng, chi ph\u00ed b\u1ea3o tr\u00ec v\u00e0 r\u1ee7i ro m\u00f4i tr\u01b0\u1eddng. Nh\u01b0 \u0111\u01b0\u1ee3c ch\u1ee9ng minh trong c\u00e1c d\u1ef1 \u00e1n quy m\u00f4 l\u1edbn, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u1ea3i t\u1ea1o nh\u00e0 m\u00e1y \u0111i\u1ec7n S\u01a1n \u0110\u00f4ng c\u1ee7a NHD, c\u00e1c gi\u1ea3i ph\u00e1p n\u00e0y cung c\u1ea5p ti\u1ebft ki\u1ec7m v\u00f2ng \u0111\u1eddi \u0111\u00e1ng k\u1ec3 - l\u00ean \u0111\u1ebfn 40% trong hai th\u1eadp k\u1ef7 - trong khi \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady ho\u1ea1t \u0111\u1ed9ng. NHD<\/b><\/u><\/strong><\/a>, m\u1ed9t nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb kh\u1eed l\u01b0u hu\u1ef3nh h\u00e0ng \u0111\u1ea7u v\u1edbi h\u01a1n 140 b\u1eb1ng s\u00e1ng ch\u1ebf v\u00e0 quan h\u1ec7 \u0111\u1ed1i t\u00e1c to\u00e0n c\u1ea7u nh\u01b0 Beg Cousland v\u00e0 SANDVIK, cung c\u1ea5p chuy\u00ean m\u00f4n \u0111\u01b0\u1ee3c ch\u1ee9ng minh t\u1eeb l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u \u0111\u1ebfn l\u1eafp \u0111\u1eb7t. L\u1ef1a ch\u1ecdn l\u1edbp l\u00f3t ti\u00ean ti\u1ebfn nh\u01b0 v\u1eady l\u00e0 m\u1ed9t kho\u1ea3n \u0111\u1ea7u t\u01b0 chi\u1ebfn l\u01b0\u1ee3c cho s\u1ea3n xu\u1ea5t \u0111i\u1ec7n b\u1ec1n v\u1eefng. N\u1ebfu b\u1ea1n c\u1ea7n c\u00e1c gi\u1ea3i ph\u00e1p thi\u1ebft b\u1ecb kh\u1eed l\u01b0u hu\u1ef3nh t\u00f9y ch\u1ec9nh, li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i t\u1ea1i\u00a0sales@chinanhd.com<\/b><\/u><\/strong><\/a>.<\/p>","protected":false},"excerpt":{"rendered":"

Kh\u00e1m ph\u00e1 l\u00fd do t\u1ea1i sao c\u00e1c h\u1ee3p kim \u0111\u1eb7c bi\u1ec7t v\u01b0\u1ee3t qua l\u1edbp l\u00f3t truy\u1ec1n th\u1ed1ng trong b\u1ed9 h\u1ea5p th\u1ee5 FGD, c\u1eaft gi\u1ea3m \u0103n m\u00f2n, th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng v\u00e0 chi ph\u00ed cho c\u00e1c nh\u00e0 m\u00e1y \u0111i\u1ec7n.<\/p>","protected":false},"author":1,"featured_media":6614,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37],"tags":[],"class_list":["post-6612","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":{"photo_gallery":{"\u6848\u4f8b\u753b\u5eca":[[]]}},"_links":{"self":[{"href":"https:\/\/www.chinanhd.com\/vi\/wp-json\/wp\/v2\/posts\/6612","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.chinanhd.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.chinanhd.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.chinanhd.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.chinanhd.com\/vi\/wp-json\/wp\/v2\/comments?post=6612"}],"version-history":[{"count":3,"href":"https:\/\/www.chinanhd.com\/vi\/wp-json\/wp\/v2\/posts\/6612\/revisions"}],"predecessor-version":[{"id":6633,"href":"https:\/\/www.chinanhd.com\/vi\/wp-json\/wp\/v2\/posts\/6612\/revisions\/6633"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.chinanhd.com\/vi\/wp-json\/wp\/v2\/media\/6614"}],"wp:attachment":[{"href":"https:\/\/www.chinanhd.com\/vi\/wp-json\/wp\/v2\/media?parent=6612"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.chinanhd.com\/vi\/wp-json\/wp\/v2\/categories?post=6612"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.chinanhd.com\/vi\/wp-json\/wp\/v2\/tags?post=6612"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}