{"id":16427,"date":"2026-01-05T06:03:56","date_gmt":"2026-01-05T06:03:56","guid":{"rendered":"https:\/\/www.epicmicron.com\/?p=16427"},"modified":"2026-01-05T06:03:58","modified_gmt":"2026-01-05T06:03:58","slug":"jet-milling-process-for-lithium-iron-phosphate-lfp-powder","status":"publish","type":"post","link":"https:\/\/www.epicmicron.com\/vi\/jet-milling-process-for-lithium-iron-phosphate-lfp-powder\/","title":{"rendered":"Quy tr\u00ecnh nghi\u1ec1n b\u1eb1ng tia kh\u00ed n\u00e9n cho b\u1ed9t Liti S\u1eaft Photphat (LFP)"},"content":{"rendered":"

At Epic Powder, we understand that the true performance of Lithium Iron Phosphate (LFP) batteries is engineered at the particle level. Our precisely controlled LFP jet milling process transforms sintered material into high-purity powder, achieving the exact particle size distribution and ultra-low moisture content required for superior energy density, safety, and cycle life. This process goes beyond grinding\u2014it integrates classification, drying, and inert gas protection in one efficient system. Whether optimizing for finer D50 or a tighter PSD, understanding LFP jet milling is key to elevating material quality and production consistency. For engineers focused on next-generation battery performance, this is where precision begins.<\/p>\n\n\n\n

\"Lithium
Lithium S\u1eaft Photphat (LFP)<\/figcaption><\/figure>\n\n\n\n

I. M\u1ee5c ti\u00eau quy tr\u00ecnh<\/h2>\n\n\n\n

V\u1eadn chuy\u1ec3n v\u1eadt li\u1ec7u \u0111\u00e3 nung k\u1ebft \u0111\u1ebfn silo ch\u1ee9a nguy\u00ean li\u1ec7u th\u00f4 \u0111\u1ec3 nghi\u1ec1n b\u1eb1ng tia kh\u00ed, \u0111\u1ed3ng th\u1eddi gia nhi\u1ec7t v\u00e0 s\u1ea5y kh\u00f4 v\u1eadt li\u1ec7u nh\u1eb1m \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 \u1ea9m v\u00e0 k\u00edch th\u01b0\u1edbc h\u1ea1t \u0111\u00e1p \u1ee9ng c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a s\u1ea3n ph\u1ea9m.<\/p>\n\n\n\n

II. Trang thi\u1ebft b\u1ecb ch\u00ednh<\/h2>\n\n\n\n
\"\"<\/figure>\n\n\n\n

H\u1ec7 th\u1ed1ng phay tia n\u01b0\u1edbc ch\u1ee7 y\u1ebfu bao g\u1ed3m:<\/p>\n\n\n\n

     M\u00e1y n\u00e9n kh\u00ed (h\u1ec7 th\u1ed1ng ngu\u1ed3n kh\u00ed)<\/p>\n\n\n\n

     H\u1ec7 th\u1ed1ng c\u1ea5p li\u1ec7u<\/p>\n\n\n\n

     M\u00e1y ch\u1ee7 xay x\u00e1t<\/p>\n\n\n\n

     B\u1ed9 ph\u00e2n lo\u1ea1i kh\u00ed turbo<\/p>\n\n\n\n

     H\u1ec7 th\u1ed1ng x\u1ea3<\/p>\n\n\n\n

\u00a0\u00a0\u00a0\u00a0 H\u1ec7 th\u1ed1ng l\u1ecdc<\/p>\n\n\n\n

     H\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n<\/p>\n\n\n\n

III. \u0110i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh v\u00e0 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng<\/h2>\n\n\n\n

Nguy\u00ean li\u1ec7u \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o m\u1ed9t bu\u1ed3ng v\u00e0 \u0111\u01b0\u1ee3c gia t\u1ed1c b\u1eb1ng lu\u1ed3ng kh\u00ed t\u1ed1c \u0111\u1ed9 cao. C\u00e1c va ch\u1ea1m m\u1ea1nh gi\u1eefa c\u00e1c h\u1ea1t v\u1edbi nhau v\u00e0 gi\u1eefa h\u1ea1t v\u1edbi th\u00e0nh bu\u1ed3ng, c\u00f9ng v\u1edbi l\u1ef1c ma s\u00e1t v\u00e0 l\u1ef1c c\u1eaft, l\u00e0m v\u1ee1 v\u00e0 nghi\u1ec1n nh\u1ecf nguy\u00ean li\u1ec7u. Sau \u0111\u00f3, m\u1ed9t b\u1ed9 ph\u00e2n lo\u1ea1i t\u00edch h\u1ee3p s\u1ebd ph\u00e2n lo\u1ea1i b\u1ed9t \u0111\u00e3 nghi\u1ec1n. B\u1ed9 thu b\u1ee5i s\u1ebd thu gom b\u1ed9t m\u1ecbn \u0111\u1ea1t ti\u00eau chu\u1ea9n k\u00edch th\u01b0\u1edbc \u0111\u1ec3 l\u00e0m s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng, \u0111\u1ed3ng th\u1eddi l\u00e0m s\u1ea1ch kh\u00f4ng kh\u00ed. H\u1ec7 th\u1ed1ng s\u1ebd \u0111\u01b0a b\u1ed9t th\u00f4 c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn h\u01a1n tr\u1edf l\u1ea1i bu\u1ed3ng nghi\u1ec1n \u0111\u1ec3 nghi\u1ec1n ti\u1ebfp. Trong su\u1ed1t c\u00e1c giai \u0111o\u1ea1n nghi\u1ec1n, ph\u00e2n lo\u1ea1i v\u00e0 v\u1eadn chuy\u1ec3n, qu\u00e1 tr\u00ecnh n\u00e0y l\u00e0m kh\u00f4 l\u01b0\u1ee3ng h\u01a1i \u1ea9m c\u00f2n l\u1ea1i trong nguy\u00ean li\u1ec7u.<\/p>\n\n\n\n

IV. Quy tr\u00ecnh<\/h2>\n\n\n\n
\"\"<\/figure>\n\n\n\n

C\u00e1c b\u01b0\u1edbc th\u1ef1c hi\u1ec7n:<\/strong>\u00a0\u00a0V\u1eadn chuy\u1ec3n nguy\u00ean li\u1ec7u th\u00f4 \u2192 Nghi\u1ec1n v\u00e0 ph\u00e2n lo\u1ea1i \u2192 V\u1eadn chuy\u1ec3n th\u00e0nh ph\u1ea9m \u2192 X\u1ea3 v\u00e0 \u0111\u00f3ng g\u00f3i<\/p>\n\n\n\n

Nguy\u00ean li\u1ec7u th\u00f4 \u0111\u01b0\u1ee3c v\u1eadn chuy\u1ec3n b\u1eb1ng kh\u00ed n\u00e9n t\u1eeb c\u00f4ng \u0111o\u1ea1n x\u1eed l\u00fd ph\u00eda th\u01b0\u1ee3ng ngu\u1ed3n \u0111\u1ebfn silo ch\u1ee9a nguy\u00ean li\u1ec7u th\u00f4 c\u1ee7a m\u00e1y nghi\u1ec1n kh\u00ed n\u00e9n. Sau \u0111\u00f3, nguy\u00ean li\u1ec7u \u0111i qua ph\u1ec5u chuy\u1ec3n ti\u1ebfp, ph\u1ec5u \u0111\u1ec7m v\u00e0 b\u1ed9 c\u1ea5p li\u1ec7u quay v\u00e0o bu\u1ed3ng nghi\u1ec1n, n\u01a1i n\u00f3 \u0111\u01b0\u1ee3c nghi\u1ec1n m\u1ecbn b\u1eb1ng kh\u00ed nit\u01a1 \u1edf nhi\u1ec7t \u0111\u1ed9 cao. Nguy\u00ean li\u1ec7u \u0111\u00e3 nghi\u1ec1n \u0111\u1ea1t ti\u00eau chu\u1ea9n \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i v\u00e0 chuy\u1ec3n \u0111\u1ebfn b\u1ed9 thu b\u1ee5i s\u1ea3n ph\u1ea9m. S\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng \u0111\u01b0\u1ee3c x\u1ea3 ra th\u00f4ng qua van b\u01b0\u1edbm \u0111\u1ebfn giai \u0111o\u1ea1n x\u1eed l\u00fd ti\u1ebfp theo.<\/p>\n\n\n\n

V. C\u00e1c \u0111i\u1ec3m ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 th\u00f4ng s\u1ed1 ch\u00ednh<\/h2>\n\n\n\n
\"V\u1eadt
V\u1eadt li\u1ec7u Liti S\u1eaft Photphat<\/figcaption><\/figure>\n\n\n\n

1. T\u1ea7n s\u1ed1 b\u00e1nh xe ph\u00e2n lo\u1ea1i: Gi\u00e1 tr\u1ecb ti\u00eau chu\u1ea9n \u00b15 Hz<\/p>\n\n\n\n

2. T\u1ea7n s\u1ed1 b\u1ed9 c\u1ea5p ngu\u1ed3n x\u1ea3: Gi\u00e1 tr\u1ecb ti\u00eau chu\u1ea9n \u00b15 Hz<\/p>\n\n\n\n

3. H\u00e0m l\u01b0\u1ee3ng oxy: \u226450 ppm<\/p>\n\n\n\n

4. \u00c1p su\u1ea5t kh\u00ed phay: Gi\u00e1 tr\u1ecb ti\u00eau chu\u1ea9n \u00b1100 kPa<\/p>\n\n\n\n

5. Nhi\u1ec7t \u0111\u1ed9 ngu\u1ed3n kh\u00f4ng kh\u00ed: 100-120\u00b0C<\/p>\n\n\n\n

6. \u0110i\u1ec3m s\u01b0\u01a1ng c\u1ee7a kh\u00f4ng kh\u00ed d\u00f9ng trong qu\u00e1 tr\u00ecnh xay x\u00e1t: \u2264 -20\u00b0C<\/p>\n\n\n\n

7. \u00c1p su\u1ea5t kh\u00ed l\u00e0m k\u00edn \/ \u00c1p su\u1ea5t kh\u00ed b\u1ea3o v\u1ec7: Gi\u00e1 tr\u1ecb ti\u00eau chu\u1ea9n \u00b10,05 MPa<\/p>\n\n\n\n

8. N\u1ed3ng \u0111\u1ed9 b\u1ed9t (%): 0,2 \u2013 2,4<\/p>\n\n\n\n

9. D\u00f2ng \u0111i\u1ec7n b\u00e1nh xe ph\u00e2n lo\u1ea1i: Gi\u00e1 tr\u1ecb ti\u00eau chu\u1ea9n \u00b15 A<\/p>\n\n\n\n

10. \u00c1p su\u1ea5t ch\u00eanh l\u1ec7ch c\u1ee7a b\u1ed9 l\u1ecdc (Pa): Gi\u00e1 tr\u1ecb ti\u00eau chu\u1ea9n \u00b1200<\/p>\n\n\n\n

11. T\u1ea7n s\u1ed1 (Hz) \/ D\u00f2ng \u0111i\u1ec7n (A) c\u1ee7a qu\u1ea1t truy\u1ec1n t\u1ea3i: Gi\u00e1 tr\u1ecb ti\u00eau chu\u1ea9n \u00b110 \/ Gi\u00e1 tr\u1ecb ti\u00eau chu\u1ea9n \u00b15<\/p>\n\n\n\n

12. Ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t:<\/p>\n\n\n\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0D10 \u2265 0,3 \u00b5m, D50: 1,1 \u00b1 0,5 \u00b5m, D90 \u2264 10 \u00b5m, D99 \u2264 25 \u00b5m<\/p>\n\n\n\n

VI. L\u01b0u \u00fd v\u1eadn h\u00e0nh v\u00e0 an to\u00e0n<\/h2>\n\n\n\n
\"nh\u00e0
Jet Mill c\u1ee7a Epic Powder<\/figcaption><\/figure>\n\n\n\n

1. Gi\u00e1m s\u00e1t oxy: Gi\u00e1m s\u00e1t ch\u1eb7t ch\u1ebd h\u00e0m l\u01b0\u1ee3ng oxy trong h\u1ec7 th\u1ed1ng trong qu\u00e1 tr\u00ecnh kh\u1edfi \u0111\u1ed9ng v\u00e0 v\u1eadn h\u00e0nh. N\u1ebfu n\u1ed3ng \u0111\u1ed9 v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n, h\u00e3y m\u1edf van x\u1ea3 kh\u00ed tr\u01a1 v\u00e0 van x\u1ea3 kh\u00ed b\u1eb1ng tay \u0111\u1ec3 lo\u1ea1i b\u1ecf oxy.<\/p>\n\n\n\n

2. Ki\u1ec3m so\u00e1t \u00e1p su\u1ea5t \u00e2m: Duy tr\u00ec \u00e1p su\u1ea5t \u00e2m c\u1ee7a h\u1ec7 th\u1ed1ng trong kho\u1ea3ng t\u1eeb -2 \u0111\u1ebfn -6 kPa. M\u1eb7c d\u00f9 th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh t\u1ef1 \u0111\u1ed9ng, nh\u01b0ng n\u1ebfu \u0111i\u1ec1u khi\u1ec3n t\u1ef1 \u0111\u1ed9ng kh\u00f4ng \u0111\u1ee7, c\u00f3 th\u1ec3 c\u1ea7n \u0111i\u1ec1u ch\u1ec9nh th\u1ee7 c\u00f4ng th\u00f4ng qua c\u00e1c van x\u1ea3\/th\u1ea3i kh\u00ed.<\/p>\n\n\n\n

3. Lu\u1ed3ng v\u1eadt li\u1ec7u: Theo d\u00f5i l\u01b0u l\u01b0\u1ee3ng x\u1ea3 th\u01b0\u1eddng xuy\u00ean. S\u1eed d\u1ee5ng b\u00faa kh\u00ed n\u00e9n \u0111\u1ec3 h\u1ed7 tr\u1ee3 n\u1ebfu x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng t\u1eafc ngh\u1ebdn ho\u1eb7c d\u00f2ng ch\u1ea3y k\u00e9m.<\/p>\n\n\n\n

4. V\u1eadn h\u00e0nh m\u00e1y ph\u00e2n lo\u1ea1i: V\u1eadn h\u00e0nh m\u00e1y ph\u00e2n lo\u1ea1i \u1edf t\u1ea7n s\u1ed1 5-50 Hz. KH\u00d4NG \u0111\u01b0\u1ee3c v\u01b0\u1ee3t qu\u00e1 t\u1ea7n s\u1ed1\/d\u00f2ng \u0111i\u1ec7n \u0111\u1ecbnh m\u1ee9c c\u1ee7a \u0111\u1ed9ng c\u01a1. Nghi\u00eam c\u1ea5m quay ng\u01b0\u1ee3c chi\u1ec1u.<\/p>\n\n\n\n

5. V\u1eadn h\u00e0nh b\u1ed9 c\u1ea5p li\u1ec7u: V\u1eadn h\u00e0nh b\u1ed9 c\u1ea5p li\u1ec7u b\u1eb1ng v\u00edt v\u1edbi t\u1ea7n s\u1ed1 trong kho\u1ea3ng 5-50 Hz. KH\u00d4NG \u0111\u01b0\u1ee3c v\u01b0\u1ee3t qu\u00e1 t\u1ea7n s\u1ed1\/d\u00f2ng \u0111i\u1ec7n \u0111\u1ecbnh m\u1ee9c c\u1ee7a \u0111\u1ed9ng c\u01a1.<\/p>\n\n\n\n

6. Quy tr\u00ecnh t\u1eaft m\u00e1y: Sau khi t\u1eaft m\u00e1y, h\u00e3y x\u1ea3 h\u1ebft kh\u00ed d\u01b0 ra kh\u1ecfi m\u00e1y n\u00e9n kh\u00ed v\u00e0 m\u00e1y s\u1ea5y kh\u00ed.<\/p>\n\n\n\n

7. M\u00f4i tr\u01b0\u1eddng thi\u1ebft b\u1ecb: Nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng xung quanh m\u00e1y n\u00e9n v\u00e0 m\u00e1y s\u1ea5y l\u1ea1nh kh\u00f4ng \u0111\u01b0\u1ee3c v\u01b0\u1ee3t qu\u00e1 40\u00b0C \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o tu\u1ed5i th\u1ecd ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n

8. Trong qu\u00e1 tr\u00ecnh ki\u1ec3m tra s\u1ea3n xu\u1ea5t, h\u00e3y ki\u1ec3m tra c\u00e1c \u0111\u00e8n b\u00e1o tr\u00ean t\u1ee7 \u0111i\u1ec1u khi\u1ec3n \u0111i\u1ec7n. \u0110\u00e8n xanh l\u00e1 c\u00e2y b\u00e1o hi\u1ec7u thi\u1ebft b\u1ecb ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng; \u0111\u00e8n v\u00e0ng b\u00e1o hi\u1ec7u thi\u1ebft b\u1ecb c\u00f3 l\u1ed7i, c\u1ea7n ki\u1ec3m tra v\u00e0 kh\u1eafc ph\u1ee5c l\u1ed7i ngay l\u1eadp t\u1ee9c; \u0111\u00e8n \u0111\u1ecf b\u00e1o hi\u1ec7u thi\u1ebft b\u1ecb b\u1ecb h\u1ecfng, c\u1ea7n d\u1eebng ho\u1ea1t \u0111\u1ed9ng ngay l\u1eadp t\u1ee9c \u0111\u1ec3 ki\u1ec3m tra \u2013 ch\u1ec9 \u0111\u01b0\u1ee3c ph\u00e9p ti\u1ebfp t\u1ee5c v\u1eadn h\u00e0nh sau khi l\u1ed7i \u0111\u01b0\u1ee3c kh\u1eafc ph\u1ee5c. Nghi\u00eam c\u1ea5m tuy\u1ec7t \u0111\u1ed1i vi\u1ec7c ti\u1ebfp t\u1ee5c v\u1eadn h\u00e0nh thi\u1ebft b\u1ecb khi \u0111\u00e8n b\u00e1o l\u1ed7i m\u00e0u v\u00e0ng \u0111ang s\u00e1ng.<\/p>\n\n\n\n

9. T\u1eaft m\u00e1y \u0111\u00fang c\u00e1ch: Tr\u01b0\u1edbc khi t\u1eaft m\u00e1y, h\u00e3y \u0111\u1ea3m b\u1ea3o bu\u1ed3ng nghi\u1ec1n ho\u00e0n to\u00e0n tr\u1ed1ng (th\u01b0\u1eddng l\u00e0 5-20 ph\u00fat sau khi ng\u1eebng c\u1ea5p li\u1ec7u). KH\u00d4NG \u0111\u01b0\u1ee3c d\u1eebng to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng ngay l\u1eadp t\u1ee9c sau khi ng\u1eebng c\u1ea5p li\u1ec7u ho\u1eb7c khi v\u1eabn c\u00f2n v\u1eadt li\u1ec7u trong bu\u1ed3ng nghi\u1ec1n. N\u1ebfu v\u1eabn c\u00f2n v\u1eadt li\u1ec7u trong bu\u1ed3ng nghi\u1ec1n sau khi d\u1eebng m\u00e1y b\u00ecnh th\u01b0\u1eddng, c\u1ea7n ph\u1ea3i l\u00e0m s\u1ea1ch ho\u00e0n to\u00e0n tr\u01b0\u1edbc khi kh\u1edfi \u0111\u1ed9ng l\u1ea1i. Tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng \u0111\u01b0\u1ee3c kh\u1edfi \u0111\u1ed9ng m\u00e1y nghi\u1ec1n khi v\u1eabn c\u00f2n v\u1eadt li\u1ec7u b\u00ean trong.<\/p>\n\n\n\n

C\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u qu\u1ea3 nghi\u1ec1n<\/h2>\n\n\n\n
\"M\u00e1y
Jet Mills c\u1ee7a Epic Powder<\/figcaption><\/figure>\n\n\n\n

1. T\u1ed1c \u0111\u1ed9 c\u1ea5p li\u1ec7u: V\u1edbi c\u00f9ng m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u, t\u1ed1c \u0111\u1ed9 c\u1ea5p li\u1ec7u kh\u00e1c nhau s\u1ebd cho ra \u0111\u1ed9 m\u1ecbn kh\u00e1c nhau. Khi c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u00e1c kh\u00f4ng \u0111\u1ed5i, t\u1ed1c \u0111\u1ed9 c\u1ea5p li\u1ec7u cao h\u01a1n th\u01b0\u1eddng cho ra s\u1ea3n ph\u1ea9m m\u1ecbn h\u01a1n v\u1edbi ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1eb9p h\u01a1n. Tuy nhi\u00ean, t\u1ed1c \u0111\u1ed9 qu\u00e1 th\u1ea5p s\u1ebd l\u00e0m gi\u1ea3m x\u00e1c su\u1ea5t va ch\u1ea1m gi\u1eefa c\u00e1c h\u1ea1t, \u1ea3nh h\u01b0\u1edfng x\u1ea5u \u0111\u1ebfn \u0111\u1ed9 m\u1ecbn. \u0110i\u1ec1u ch\u1ec9nh t\u1ed1c \u0111\u1ed9 c\u1ea5p li\u1ec7u nh\u1eb1m m\u1ee5c \u0111\u00edch \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u1ef7 l\u1ec7 kh\u00ed\/r\u1eafn t\u1ed1i \u01b0u. Kh\u1ea3 n\u0103ng nghi\u1ec1n k\u00e9m h\u01a1n ho\u1eb7c y\u00eau c\u1ea7u \u0111\u1ed9 m\u1ecbn cao h\u01a1n \u0111\u00f2i h\u1ecfi t\u1ef7 l\u1ec7 kh\u00ed\/r\u1eafn cao h\u01a1n.<\/p>\n\n\n\n

2. \u00c1p su\u1ea5t nghi\u1ec1n: Nguy\u00ean l\u00fd d\u1ef1a tr\u00ean vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng th\u00e0nh n\u0103ng l\u01b0\u1ee3ng \u0111\u1ed9ng, t\u1ea1o ra l\u1ef1c nghi\u1ec1n. \u00c1p su\u1ea5t kh\u00ed cao h\u01a1n l\u00e0m t\u0103ng v\u1eadn t\u1ed1c tia phun (m\u1eb7c d\u00f9 kh\u00f4ng tuy\u1ebfn t\u00ednh, v\u00ec h\u1ec7 s\u1ed1 c\u1ea3n t\u0103ng l\u00ean v\u01b0\u1ee3t qu\u00e1 m\u1ed9t \u0111i\u1ec3m nh\u1ea5t \u0111\u1ecbnh), do \u0111\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn n\u0103ng l\u01b0\u1ee3ng \u0111\u1ea7u v\u00e0o.<\/p>\n\n\n\n

3. K\u00edch th\u01b0\u1edbc v\u00f2i phun: \u0110\u01b0\u1eddng k\u00ednh v\u00f2i phun \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ed1 l\u01b0\u1ee3ng h\u1ea1t \u0111\u01b0\u1ee3c gia t\u1ed1c v\u00e0 v\u1eadn t\u1ed1c cu\u1ed1i c\u00f9ng c\u1ee7a ch\u00fang, t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn k\u00edch th\u01b0\u1edbc h\u1ea1t cu\u1ed1i c\u00f9ng v\u00e0 \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u. N\u00f3i chung, v\u00f2i phun nh\u1ecf h\u01a1n l\u00e0m t\u0103ng \u00e1p su\u1ea5t, t\u00e1c \u0111\u1ed9ng l\u00ean \u00edt h\u1ea1t h\u01a1n, t\u1ea1o ra t\u1ed1c \u0111\u1ed9 h\u1ea1t cao h\u01a1n, d\u1eabn \u0111\u1ebfn \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u k\u00e9m h\u01a1n sau va ch\u1ea1m, t\u1ea1o ra b\u1ed9t m\u1ecbn h\u01a1n nh\u01b0ng k\u00e9m \u0111\u1ed3ng nh\u1ea5t h\u01a1n, v\u00e0 ng\u01b0\u1ee3c l\u1ea1i. \u0110\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u v\u00e0 gi\u1ea3m k\u00edch th\u01b0\u1edbc h\u1ea1t l\u1edbn (D90, Dmax), vi\u1ec7c t\u0103ng \u0111\u01b0\u1eddng k\u00ednh v\u00f2i phun m\u1ed9t c\u00e1ch th\u00edch h\u1ee3p c\u00f3 th\u1ec3 l\u00e0 c\u1ea7n thi\u1ebft.<\/p>\n\n\n\n

4. Nhi\u1ec7t \u0111\u1ed9 gia c\u00f4ng: Nhi\u1ec7t \u0111\u1ed9 v\u1eadt li\u1ec7u th\u1ea5p s\u1ebd l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 hi\u1ec7u qu\u1ea3 gia c\u00f4ng v\u00e0 n\u0103ng l\u1ef1c s\u1ea3n xu\u1ea5t. N\u1ebfu c\u00f3 th\u1ec3, n\u00ean t\u0103ng nhi\u1ec7t \u0111\u1ed9 trong qu\u00e1 tr\u00ecnh gia c\u00f4ng \u0111\u1ec3 kh\u1eafc ph\u1ee5c hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y.<\/p>\n\n\n\n

5. \u1ea2nh h\u01b0\u1edfng c\u1ee7a \u00e1p su\u1ea5t ng\u01b0\u1ee3c: \u00c1p su\u1ea5t ng\u01b0\u1ee3c, t\u1ee9c l\u00e0 \u00e1p su\u1ea5t t\u0129nh t\u1ea1i c\u1eeda ra c\u1ee7a v\u00f2i phun b\u00ean trong bu\u1ed3ng nghi\u1ec1n, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn v\u1eadn t\u1ed1c d\u00f2ng kh\u00ed b\u00ean trong v\u00f2i phun. \u00c1p su\u1ea5t ng\u01b0\u1ee3c qu\u00e1 cao s\u1ebd c\u1ea3n tr\u1edf d\u00f2ng ch\u1ea3y c\u1ee7a v\u00f2i phun, l\u00e0m gi\u1ea3m tr\u1ef1c ti\u1ebfp \u0111\u1ed9ng n\u0103ng c\u1ea7n thi\u1ebft cho qu\u00e1 tr\u00ecnh nghi\u1ec1n. \u00c1p su\u1ea5t ng\u01b0\u1ee3c t\u0103ng cao l\u00e0 c\u00f3 h\u1ea1i. Trong s\u1ea3n xu\u1ea5t, s\u1ef1 gia t\u0103ng l\u1ef1c c\u1ea3n trong h\u1ec7 th\u1ed1ng thu gom c\u0169ng c\u00f3 th\u1ec3 l\u00e0m t\u0103ng \u00e1p su\u1ea5t ng\u01b0\u1ee3c. \u0110\u1ea3m b\u1ea3o \u00e1p su\u1ea5t ng\u01b0\u1ee3c c\u1ee7a h\u1ec7 th\u1ed1ng n\u1eb1m trong ph\u1ea1m vi \u0111\u00e3 thi\u1ebft l\u1eadp (+2 \u0111\u1ebfn +6 kPa) gi\u00fap duy tr\u00ec v\u1eadn t\u1ed1c va ch\u1ea1m c\u1ee7a h\u1ea1t cao h\u01a1n, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho qu\u00e1 tr\u00ecnh nghi\u1ec1n hi\u1ec7u qu\u1ea3.<\/p>\n\n\n\n

B\u1ed9t s\u1eed thi<\/h2>\n\n\n\n
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