Nguy\u1ec5n M\u1ea1nh Ho\u1ea1t<\/b><\/p>\n
G\u0110 Trung t\u00e2m C\u00f4ng nghi\u1ec7p r\u1eebng<\/p>\n
I – \u0110\u1eb7t v\u1ea5n \u0111\u1ec1<\/b>: M\u00e1y b\u0103m d\u0103m c\u1ee1 nh\u1ecf MB-930.B do Trung t\u00e2m C\u00f4ng nghi\u1ec7p r\u1eebng thu\u1ed9c Vi\u1ec7n KHLN Vi\u1ec7t Nam nghi\u00ean c\u1ee9u thi\u1ebft k\u1ebf v\u00e0 k\u1ebft h\u1ee3p v\u1edbi C\u00f4ng ty B\u00e1ch khoa – Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc B\u00e1ch khoa H\u00e0 N\u1ed9i ch\u1ebf t\u1ea1o \u0111\u00e3 \u0111\u01b0a v\u00e0o s\u1ea3n xu\u1ea5t \u1edf v\u00f9ng nguy\u00ean li\u1ec7u gi\u1ea5y ph\u00eda B\u1eafc. Hi\u1ec7n nay c\u00f3 2 m\u00e1y \u0111ang ho\u1ea1t \u0111\u1ed9ng t\u1ea1i t\u1ec9nh Ph\u00fa Th\u1ecd s\u1ea3n xu\u1ea5t d\u0103m cung c\u1ea5p cho nh\u00e0 m\u00e1y gi\u1ea5y B\u00e3i B\u1eb1ng, gi\u1ea3i quy\u1ebft vi\u1ec7c l\u00e0m cho c\u00f4ng nh\u00e2n. Tuy nhi\u00ean v\u1edbi 2 m\u00e1y \u0111ang ho\u1ea1t \u0111\u1ed9ng c\u00f3 t\u00ednh n\u0103ng k\u1ef9 thu\u1eadt nh\u01b0 nhau, nh\u01b0ng n\u0103ng su\u1ea5t s\u1ea3n xu\u1ea5t l\u1ea1i r\u1ea5t kh\u00e1c nhau : M\u00e1y s\u1ed1 1 \u0111\u1ea1t n\u0103ng su\u1ea5t b\u00ecnh qu\u00e2n 3,5 t\u1ea5n\/gi\u1edd, m\u00e1y s\u1ed1 2 n\u0103ng su\u1ea5t b\u00ecnh qu\u00e2n 6 t\u1ea5n\/gi\u1edd. Trong khi c\u00e1c y\u1ebfu t\u1ed1 v\u1ec1 lo\u1ea1i nguy\u00ean li\u1ec7u v\u00e0 c\u00f4ng nh\u00e2n s\u1ea3n xu\u1ea5t g\u1ea7n nh\u01b0 nhau. V\u1eady n\u00ean ch\u00fang t\u00f4i ph\u1ea3i \u0111\u1eb7t v\u1ea5n \u0111\u1ec1 nghi\u00ean c\u1ee9u c\u00e1c y\u1ebfu t\u1ed1 v\u1ec1 thi\u1ebft b\u1ecb hay t\u1ed5 ch\u1ee9c SX \u0111\u00e3 l\u00e0m cho n\u0103ng su\u1ea5t m\u00e1y t\u0103ng l\u00ean g\u1ea7n g\u1ea5p \u0111\u00f4i nh\u01b0 th\u1ef1c t\u1ebf \u0111\u00e3 di\u1ec5n ra nh\u1eb1m gi\u00fap cho c\u01a1 s\u1edf ch\u1ec9 \u0111\u1ea1o s\u1ea3n xu\u1ea5t ho\u1ea1t \u0111\u1ed9ng c\u00f3 hi\u1ec7u qu\u1ea3.<\/p>\n
II – T\u00ednh to\u00e1n l\u1ef1a ch\u1ecdn c\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn n\u0103ng su\u1ea5t c\u1ea7n theo d\u00f5i \u0111\u1ec3 c\u1ea3i t\u1ea1o ho\u00e0n thi\u1ec7n trong s\u1ea3n xu\u1ea5t.<\/b><\/p>\n
Theo l\u00fd thuy\u1ebft c\u00f4ng th\u1ee9c t\u00ednh n\u0103ng su\u1ea5t m\u00e1y nh\u01b0 sau :<\/p>\n
pd2<\/sup><\/p>\n Q = 0,95m . ——— ldn x z x 60 (m3\/gi\u1edd)<\/p>\n 4<\/p>\n Trong \u0111\u00f3 : + m – S\u1ed1 kh\u00fac g\u1ed7 b\u0103m c\u00f9ng 1 l\u00fac<\/p>\n + d – \u0110\u01b0\u1eddng k\u00ednh trung b\u00ecnh kh\u00fac g\u1ed7 (m)<\/p>\n + ld – Chi\u1ec1u d\u00e0i d\u0103m (m)<\/p>\n + n – S\u1ed1 v\u00f2ng quay \u0111\u0129a b\u0103m trong 1 ph\u00fat<\/p>\n + z – S\u1ed1 l\u01b0\u1ee1i dao b\u0103m l\u1eafp tr\u00ean \u0111\u0129a.<\/p>\n Trong s\u1ea3n xu\u1ea5t th\u1ef1c t\u1ebf ph\u1ea3i c\u00f3 th\u00eam h\u1ec7 s\u1ed1 n\u1ea1p li\u1ec7u li\u00ean t\u1ee5c – a<\/p>\n ( a < 1) g\u1ecdi l\u00e0 h\u1ec7 s\u1ed1 s\u1eed d\u1ee5ng t\u1ea3i<\/p>\n Qtt = a.Qlt.<\/p>\n V\u1eady ta c\u00f3 :<\/p>\n Qtt = 44,745 a.l.m.n.z.d2<\/sup><\/p>\n – Nh\u1eefng th\u00f4ng s\u1ed1 \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh khi thi\u1ebft k\u1ebf m\u00e1y l\u00e0 :<\/p>\n + n – S\u1ed1 v\u00f2ng quay \u0111\u0129a b\u0103m<\/p>\n + z – S\u1ed1 l\u01b0\u1ee1i dao l\u1eafp tr\u00ean \u0111\u0129a<\/p>\n – Th\u00f4ng s\u1ed1 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh khi s\u1ea3n xu\u1ea5t l\u00e0 :<\/p>\n + l – Chi\u1ec1u d\u00e0i d\u0103m<\/p>\n V\u1edbi m\u00e1y b\u0103m d\u0103m do ch\u00fang t\u00f4i thi\u1ebft k\u1ebf ch\u1ebf t\u1ea1o – MB 930.B<\/p>\n n = 600 v\/ph\u00fat v\u00e0 : s\u1ed1 l\u01b0\u1ee1i dao l\u1eafp tr\u00ean \u0111\u0129a z = 3<\/p>\n D\u0103m cho nguy\u00ean li\u1ec7u gi\u1ea5y n\u1ebfn : l = 0,03m<\/p>\n Do \u0111\u00f3 ta c\u00f3 :<\/p>\n Qtt = 44,745.a.m.d2<\/sup>.6.3.3<\/p>\n N\u1ebfu t\u00ednh \u0111\u01b0\u1eddng k\u00ednh g\u1ed7 theo cm th\u00ec ta c\u00f3 (d \u00de t\u00ednh = cm)<\/p>\n Qtt= 2416,23.10 – 4<\/sup> . a . m . d2<\/sup><\/p>\n = 0,2416 . a . m . d2<\/sup>(d \u00de t\u00ednh b\u1eb1ng m)<\/p>\n Nh\u01b0 v\u1eady c\u00f4ng su\u1ea5t b\u0103m d\u0103m c\u1ee7a m\u00e1y b\u0103m MB 930.B ph\u1ee5 thu\u1ed9c v\u00e0o 3 tham s\u1ed1 sau :<\/p>\n 1 – H\u1ec7 s\u1ed1 s\u1eed d\u1ee5ng t\u1ea3i a (a < 1) ph\u1ee5 thu\u1ed9c ph\u01b0\u01a1ng th\u1ee9c n\u1ea1p li\u1ec7u, tr\u00ecnh \u0111\u1ed9 v\u00e0 s\u1ee9c kho\u1ebb c\u1ee7a c\u00f4ng nh\u00e2n n\u1ea1p li\u1ec7u. Mu\u1ed1n x\u00e2y d\u1ef1ng \u0111\u01b0\u1ee3c b\u1ea3ng h\u1ec7 s\u1ed1 a ph\u1ea3i theo d\u00f5i trong s\u1ea3n xu\u1ea5t v\u1edbi s\u1ed1 l\u01b0\u1ee3ng th\u1eddi gian \u00edt nh\u1ea5t l\u00e0 : 30 ca m\u00e1y<\/p>\n ( kho\u1ea3ng 2 th\u00e1ng).<\/p>\n 2 – S\u1ed1 kh\u00fac g\u1ed7 b\u0103m c\u00f9ng m\u1ed9t l\u00fac – m<\/p>\n Do b\u0103m g\u1ed7 t\u1eadn d\u1ee5ng, c\u00e0nh ng\u1ecdn c\u00f3 \u0111\u01b0\u1eddng k\u00ednh nh\u1ecf n\u00ean khi kh\u00fac g\u1ed7 c\u00f3 \u0111\u01b0\u1eddng k\u00ednh nh\u1ecf d < 7 cm th\u00ec c\u00f9ng m\u1ed9t l\u00fac n\u1ea1p li\u1ec7u 2 c\u1eeda ho\u1eb7c n\u1ea1p 2 – 3 kh\u00fac c\u00f9ng l\u00fac \u0111\u1ec3 t\u1eadn d\u1ee5ng c\u00f4ng su\u1ea5t m\u00e1y.<\/p>\n Trong th\u1ef1c t\u1ebf x\u1ea9y ra c\u00f3 d \u00b34cm \u0111\u1ebfn d \u00a37 cm ta c\u00f3 th\u1ec3 t\u00ednh trung b\u00ecnh ti\u1ebft di\u1ec7n g\u1ed7 c\u1eaft :<\/p>\n V\u1edbi m = 2 th\u00ec : F = 0,8 (d1<\/sub>2<\/sup>+ d2<\/sub>2<\/sup> )<\/p>\n T\u00ednh b\u00ecnh qu\u00e2n trung b\u00ecnh : d1<\/sub> = 4cm ; d2<\/sub> = 7cm<\/p>\n Th\u00ec : F = 0,8 (42<\/sup> + 72<\/sup>) = 0,8 (8,06)2<\/sup><\/p>\n dtb = 8,06 cm<\/p>\n Th\u01b0\u1eddng t\u00ednh to\u00e1n d > 8cm cho n\u00ean h\u1ec7 s\u1ed1 m ta c\u00f3 th\u1ec3 b\u1ecf qua<\/p>\n m coi nh\u01b0 = 1 trong c\u00f4ng th\u1ee9c t\u00ednh Q<\/p>\n Q = 0,2416 a . d2<\/sup><\/p>\n Theo c\u00f4ng th\u1ee9c tr\u00ean v\u1edbi m\u1ed7i lo\u1ea1i m\u00e1y b\u0103m , n\u0103ng su\u1ea5t b\u0103m d\u0103m ph\u1ee5 thu\u1ed9c v\u00e0o 2 th\u00f4ng s\u1ed1 ch\u1ee7 y\u1ebfu l\u00e0 :<\/p>\n 1 – H\u1ec7 s\u1ed1 n\u1ea1p li\u1ec7u a , ph\u1ee5 thu\u1ed9c v\u00e0o ph\u01b0\u01a1ng ph\u00e1p n\u1ea1p :<\/p>\n + N\u1ea1p b\u1eb1ng b\u0103ng t\u1ea3i th\u00ec a = 0,6 – 0,8<\/p>\n + N\u1ea1p th\u1ee7 c\u00f4ng th\u00ec a \u00a3 0,4<\/p>\n Hi\u1ec7n nay ch\u1ee7 y\u1ebfu l\u00e0 n\u1ea1p th\u1ee7 c\u00f4ng tr\u1eeb c\u00e1c c\u01a1 s\u1edf s\u1ea3n xu\u1ea5t l\u1edbn nh\u01b0 c\u00e1c nh\u00e0 m\u00e1y gi\u1ea5y ho\u1eb7c nh\u00e0 m\u00e1y b\u0103m d\u0103m xu\u1ea5t kh\u1ea9u nh\u01b0 VIJACHIP , HATECO,… v\u1edbi m\u00e1y MB.900.A ho\u1eb7c MB.930.B , h\u1ec7 s\u1ed1 a dao \u0111\u1ed9ng trong kho\u1ea3ng : a = 0,2- 0,4<\/p>\n H\u1ec7 s\u1ed1 a ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c \u0111i\u1ec1u ki\u1ec7n sau :<\/p>\n – T\u1ed5 ch\u1ee9c d\u00e2y chuy\u1ec1n SX h\u1ee3pl\u00fd : x\u1ebfp g\u1ed7 thu\u1eadn ti\u1ec7n cho c\u00f4ng nh\u00e2n<\/p>\n thao t\u00e1c, v\u1ecb tr\u00ed thao t\u00e1c h\u1ee3p l\u00fd,… = a1<\/sub><\/p>\n – Tr\u00ecnh \u0111\u1ed9 tay ngh\u1ec1 c\u1ee7a c\u00f4ng nh\u00e2n = a2<\/sub><\/p>\n – Gi\u00e3n c\u00e1ch th\u1eddi gian c\u00f4ng nh\u00e2n l\u00e0m vi\u1ec7c trong 1 ca = a3<\/sub><\/p>\n N\u1ebfu c\u1ee9 sau 1 gi\u1edd ho\u1eb7c 1,5 gi\u1edd thao t\u00e1c l\u1ea1i cho ngh\u1ec9 gi\u1ea3i lao 15 ph\u00fat th\u00ec a3<\/sub> l\u1edbn, n\u1ebfu l\u00e0m li\u00ean t\u1ee5c 3 – 4 gi\u1edd a3<\/sub> nh\u1ecf , do c\u00f4ng nh\u00e2n b\u1ecb m\u1ec7t m\u1ecfi thao t\u00e1c ch\u1eadm.<\/p>\n a = a1<\/sub> . a2<\/sub> . a3<\/sub> (C\u00e1c h\u1ec7 s\u1ed1 a1<\/sub> , a2<\/sub> , a3<\/sub> \u0111\u1ec1u < 1)<\/p>\n V\u00ec v\u1eady \u0111\u1ed1i v\u1edbi m\u1ed9t \u0111\u01a1n v\u1ecb d\u1ef1 \u0111\u1ecbnh t\u1ed5 ch\u1ee9c s\u1ea3n xu\u1ea5t d\u0103m ph\u1ea3i ch\u00fa tr\u1ecdng \u0111\u1ebfn c\u00e1c y\u1ebfu t\u1ed1 l\u00e0m \u1ea3nh h\u01b0\u1edfng t\u1edbi n\u0103ng su\u1ea5t v\u00e0 hi\u1ec7u qu\u1ea3 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00e1y. Ch\u00fang t\u00f4i \u0111\u00e3 theo d\u00f5i qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t d\u0103m v\u1edbi m\u00e1y MB.900.A, m\u00e1y MB.930.B v\u00e0 x\u00e2y d\u1ef1ng c\u00e1c m\u1ed1i t\u01b0\u01a1ng quan gi\u1eefa c\u00e1c th\u00f4ng s\u1ed1 \u1ea3nh h\u01b0\u1edfng v\u1edbi n\u0103ng su\u1ea5t b\u0103m d\u0103m c\u1ee7a m\u00e1y.<\/p>\n Nh\u01b0 tr\u00ean \u0111\u00e3 tr\u00ecnh b\u00e0y : a = a1<\/sub> .a2<\/sub> . a3<\/sub>, trong \u0111i\u1ec1u ki\u1ec7n n\u1ea1p li\u1ec7u b\u1eb1ng th\u1ee7 c\u00f4ng, ch\u00fang t\u00f4i \u0111\u00e3 x\u00e1c \u0111\u1ecbnh qua th\u1ef1c t\u1ebf gi\u00e1 tr\u1ecb c\u00e1c h\u1ec7 s\u1ed1 nh\u01b0 sau :<\/p>\n + a1<\/sub> = 0,6 – 0,7 – h\u1ec7 s\u1ed1 kh\u1ea3 n\u0103ng \u0111\u01b0a g\u1ed7 li\u00ean t\u1ee5c v\u00e0o m\u00e1y<\/p>\n + a2<\/sub> = 0,5 – 0,7 – h\u1ec7 s\u1ed1 kh\u1ea3 n\u0103ng n\u1ea1p \u0111\u1ea7y t\u1ea3i<\/p>\n + a3<\/sub> = 0,5 – 0,7 – h\u1ec7 s\u1ed1 c\u01b0\u1eddng \u0111\u1ed9 lao \u0111\u1ed9ng c\u1ee7a c\u00f4ng nh\u00e2n .<\/p>\n T\u00ednh b\u00ecnh qu\u00e2n : a = 0,2 – 0,3<\/p>\n Ta l\u1eadp s\u1ef1 t\u01b0\u01a1ng quan gi\u1eefa a v\u00e0 Q (n\u0103ng su\u1ea5t gi\u1edd c\u1ee7a m\u00e1y)<\/p>\n T\u01b0\u01a1ng quan gi\u1eefa a v\u00e0 d v\u1edbi Q nh\u01b0 b\u1ea3ng sau :<\/p>\n d – t\u00ednh b\u1eb1ng cm (\u0111\u01b0\u1eddng k\u00ednh g\u1ed7 b\u00ecnh qu\u00e2n trung b\u00ecnh n\u00ean ch\u1ec9 t\u00ednh<\/p>\n \u0111\u1ebfn d = 12, m\u1eb7c d\u00f9 dmax = 15cm).<\/p>\n Q – t\u00ednh b\u1eb1ng M3<\/sup>\/gi\u1edd.<\/p>\n K\u1ebft lu\u1eadn<\/u><\/b> : T\u1eeb b\u1ea3ng tr\u00ean ta th\u1ea5y c\u00f9ng m\u1ed9t lo\u1ea1i m\u00e1y, c\u00f9ng m\u1ed9t k\u00edch th\u01b0\u1edbc s\u1ea3n ph\u1ea9m d\u0103m nh\u01b0 nhau, n\u0103ng su\u1ea5t m\u00e1y b\u0103m d\u0103m c\u00f3 th\u1ec3 dao \u0111\u1ed9ng t\u1eeb : 2M3<\/sup><\/b>\/gi\u1edd \u0111\u1ebfn 10,44 M3<\/sup>\/gi\u1edd v\u00e0 n\u1ebfu nguy\u00ean li\u1ec7u \u0111\u1ea7u v\u00e0o nh\u01b0 nhau n\u0103ng su\u1ea5t v\u1eabn c\u00f3 th\u1ec3 kh\u00e1c nhau = 1,5 l\u1ea7n. \u0110\u00e2y l\u00e0 m\u1ed9t \u0111i\u1ec1u r\u1ea5t c\u00f3 \u00fd ngh\u0129a, b\u1edfi l\u1ebd n\u00e2ng cao n\u0103ng su\u1ea5t s\u1ebd gi\u1ea3m \u0111\u01b0\u1ee3c gi\u00e1 th\u00e0nh s\u1ea3n xu\u1ea5t v\u00e0 t\u0103ng thu nh\u1eadp cho ng\u01b0\u01a1\u00ec lao \u0111\u1ed9ng v\u00e0 t\u0103ng l\u1ee3i nhu\u1eadn cho c\u01a1 s\u1edf. N\u0103m 1998 t\u1ea1i x\u01b0\u1edfng d\u0103m Ph\u00f9 Ninh l\u01b0\u01a1ng c\u00f4ng nh\u00e2n s\u1ea3n xu\u1ea5t d\u0103m c\u00f3 th\u00e1ng \u0111\u1ea1t tr\u00ean 1000.000,00\u0111 ho\u1eb7c l\u01b0\u01a1ng ng\u00e0y > 40.000\u0111\/c\u00f4ng l\u00e0 do t\u1ed5 ch\u1ee9c s\u1ea3n xu\u1ea5t h\u1ee3p l\u00fd c\u1ee7a c\u01a1 s\u1edf.<\/p>\n Tr\u00ean \u0111\u00e2y m\u1edbi l\u00e0 m\u1ed9t s\u1ed1 nghi\u00ean c\u1ee9u ban \u0111\u1ea7u v\u1ec1 c\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn n\u0103ng su\u1ea5t b\u0103m d\u0103m m\u00e0 t\u1eadp trung l\u00e0 kh\u00e2u t\u1ed5 ch\u1ee9c SX v\u00e0 \u0111\u01b0\u1eddng k\u00ednh g\u1ed7. \u0110\u1ec3 nghi\u00ean c\u1ee9u \u0111\u1ea7y \u0111\u1ee7 h\u01a1n c\u00f2n ph\u1ea3i nghi\u00ean c\u1ee9u \u0111\u1ebfn c\u00e1c y\u1ebfu t\u1ed1 v\u1ec1 k\u1ef9 thu\u1eadt nh\u01b0 :<\/p>\n Lo\u1ea1i g\u1ed7 (b\u1ea1ch \u0111\u00e0n, b\u1ed3 \u0111\u1ec1, keo) – \u0110\u1ed9 \u1ea9m c\u1ee7a g\u1ed7 v\u00e0 m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 v\u1ec1 thi\u1ebft b\u1ecb nh\u01b0 \u0111\u1ed9 s\u1eafc c\u1ee7a dao b\u0103m (g\u00f3c c\u1eaft c\u1ee7a dao ),… v\u1ea5n \u0111\u1ec1 n\u00e0y ch\u00fang t\u00f4i \u0111ang ti\u1ebfp t\u1ee5c nghi\u00ean c\u1ee9u trong th\u1eddi gian t\u1edbi.<\/p>\n Research on factors affecting the capacity of woodchip-producing <\/b><\/p>\n machine MB 930.B<\/b><\/p>\n Summary<\/b><\/p>\n Small-sized woodchip-producing machine MB 930.B designedby the Forest industry centre (FIC) of the Forest Science Institute of Vietnam. The machine is manufactured by the collaboration between FIC and the Poly-technics Company – Hanoi Polytechnics University. At present two machines are in use, supplying raw material for Bai Bang Paper Mill. But the capacity greatly differs between the two machines: One attains 3.5 tones\/hour and the other 6 tones\/hour. Main reason on the difference in the organization of the production and the different diameters. Research must be further carried out on kinds of wood, wood moisture, the sharpness of the knife.<\/p>\n *****************************************<\/p>\n k\u1ebft qu\u1ea3 chuy\u1ec3n giao d\u00e2y chuy\u1ec1n thi\u1ebft b\u1ecb v\u00e0 c\u00f4ng ngh\u1ec7 ch\u1ebf bi\u1ebfn g\u1ed7 & l\u00e2m s\u1ea3n qui m\u00f4 nh\u1ecf<\/b><\/p>\n TS.Tr\u1ea7n Tu\u1ea5n Ngh\u0129a<\/b><\/p>\n Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, Trung t\u00e2m Th\u1ef1c nghi\u1ec7m & Chuy\u1ec3n giao KT C\u00f4ng nghi\u1ec7p r\u1eebng (g\u1ecdi t\u1eaft l\u00e0 Trung t\u00e2m CNR), thu\u1ed9c Vi\u1ec7n KHLNVi\u1ec7t Nam \u0111\u00e3 ti\u1ebfn h\u00e0nh th\u00e0nh c\u00f4ng nhi\u1ec1u h\u1ee3p \u0111\u1ed3ng chuy\u1ec3n giao d\u00e2y chuy\u1ec1n thi\u1ebft b\u1ecb v\u00e0 qui tr\u00ecnh c\u00f4ng ngh\u1ec7 ch\u1ebf bi\u1ebfn g\u1ed7 & l\u00e2m s\u1ea3n qui m\u00f4 nh\u1ecf cho c\u00e1c c\u01a1 s\u1edf SX trong v\u00e0 ngo\u00e0i qu\u1ed1c doanh, g\u00f3p ph\u1ea7n \u0111\u00e1ng k\u1ec3 v\u00e0o vi\u1ec7c n\u00e2ng cao hi\u1ec7u qu\u1ea3 v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng s\u1eed d\u1ee5ng h\u1ee3p l\u00fd t\u00e0i nguy\u00ean r\u1eebng, t\u1ea1o th\u00eam vi\u1ec7c l\u00e0m, ngu\u1ed3n thu nh\u1eadp cho ng\u01b0\u1eddi lao \u0111\u1ed9ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 g\u00f3p ph\u1ea7n t\u1ea1o \u0111i\u1ec1u ki\u1ec7n \u0111\u1ec3 ng\u01b0\u1eddi d\u00e2n v\u00f9ng r\u1eebng n\u00fai c\u00f3 th\u1ec3 s\u1ed1ng \u0111\u01b0\u1ee3c b\u1eb1ng ngh\u1ec1 r\u1eebng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 2 trong s\u1ed1 c\u00e1c d\u1ea1ng thi\u1ebft b\u1ecb v\u00e0 c\u00f4ng ngh\u1ec7 m\u00e0 Trung t\u00e2m CNR \u0111\u00e3 th\u1ef1c hi\u1ec7n.<\/p>\n 1. Chuy\u1ec3n giao l\u00f2 s\u1ea5y v\u00e0 quy tr\u00ecnh s\u1ea5y g\u1ed7 sx \u0111\u1ed3 m\u1ed9c<\/b><\/p>\n G\u1ed7 d\u00f9ng trong t\u1ea5t c\u1ea3 c\u00e1c l\u0129nh v\u1ef1c, nh\u1ea5t l\u00e0 trong SX \u0111\u1ed3 m\u1ed9c c\u1ea7n \u0111\u01b0\u1ee3c s\u1ea5y \u0111\u1ec3 n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m : \u0110\u1ea3m b\u1ea3o s\u1ef1 \u1ed5n \u0111\u1ecbnh v\u1ec1 h\u00ecnh d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c chi ti\u1ebft, t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i s\u1ef1 pha hu\u1ef7 c\u1ee7a m\u00f4i sinh, m\u00f4i tr\u01b0\u1eddng.<\/p>\n \u0110\u1ed1i v\u1edbi c\u00e1c n\u01b0\u1edbc c\u00f3 n\u1ec1n c\u00f4ng nghi\u1ec7p ch\u1ebf bi\u1ebfn g\u1ed7 ph\u00e1t tri\u1ec3n, c\u00e1c thi\u1ebft b\u1ecb s\u1ea5y g\u1ed7 \u0111\u00e3 \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u thi\u1ebft k\u1ebf, ch\u1ebf t\u1ea1o r\u1ea5t \u0111a d\u1ea1ng v\u00e0 ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c ho\u00e0n thi\u1ec7n. C\u00e1c ch\u1ebf \u0111\u1ed9 s\u1ea5y cho t\u1eebng loa\u1ecb g\u1ed7 c\u0169ng \u0111\u00e3 \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u x\u00e2y d\u1ef1ng h\u1ee3p l\u00fd v\u00e0 \u1ed5n \u0111\u1ecbnh. H\u1ea7u h\u1ebft c\u00e1c lo\u1ea1i h\u00ecnh thi\u1ebft b\u1ecb s\u1ea5y g\u1ed7 : h\u01a1i n\u01b0\u1edbc, h\u01a1i \u0111\u1ed1t, \u0111i\u1ec7n, ch\u00e2n kh\u00f4ng, n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi… hi\u1ec7n c\u00f3 tr\u00ean th\u1ebf gi\u1edbi \u0111\u00e3 v\u00e0 \u0111ang \u0111\u01b0\u1ee3c nh\u1eadp v\u00e0o VN.<\/p>\n Tuy nhi\u00ean, do ch\u00fang \u0111a d\u1ea1ng v\u1ec1 n\u0103ng l\u01b0\u1ee3ng s\u1ea5y, v\u1ed1n \u0111\u1ea7u t\u01b0 l\u1edbn v\u00e0 h\u1ea7u h\u1ebft n\u1eb1m trong m\u1ed9t d\u00e2y chuy\u1ec1n ch\u1ebf bi\u1ebfn \u0111\u1ed3ng b\u1ed9, n\u00ean ch\u1ec9 c\u00f3 m\u1ed9t s\u1ed1 c\u01a1 s\u1edf ch\u1ebf bi\u1ebfn l\u1edbn \u1edf n\u01b0\u1edbc ta m\u1edbi c\u00f3 kh\u1ea3 n\u0103ng nh\u1eadp thi\u1ebft b\u1ecb to\u00e0n b\u1ed9 v\u00e0 duy tr\u00ec ho\u1ea1t \u0111\u1ed9ng s\u1ea5y g\u1ed7. Trong khi \u0111\u00f3, n\u1ec1n c\u00f4ng nghi\u1ec7p ch\u1ebf bi\u1ebfn g\u1ed7 v\u00e0 LS \u1edf VN l\u1ea1i c\u00f2n qu\u00e1 nh\u1ecf b\u00e9, ngh\u00e8o n\u00e0n v\u1ec1 c\u01a1 s\u1edf v\u1eadt ch\u1ea5t, l\u1ea1c h\u1eadu v\u1ec1 thi\u1ebft b\u1ecb k\u1ef9 thu\u1eadt, c\u01a1 c\u1ea5u t\u1ed5 ch\u1ee9c SX l\u1ea1i qu\u00e1 ph\u00e2n t\u00e1n, thi\u1ebfu \u0111\u1ed3ng b\u1ed9… V\u00ec v\u1eady vi\u1ec7c nghi\u00ean c\u1ee9u t\u1ea1o ra m\u1ed9t d\u1ea1ng l\u00f2 s\u1ea5y g\u1ed7 ph\u00f9 h\u1ee3p v\u1edbi t\u00ecnh h\u00ecnh th\u1ef1c t\u1ebf : qui m\u00f4 nh\u1ecf,d\u1ec5 x\u00e2y d\u1ef1ng, v\u00e0 v\u1eadn h\u00e0nh, nh\u01b0ng v\u1eabn \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng g\u1ed7 s\u1ea5y SX \u0111\u1ed3 m\u1ed9c \u0111\u00e3 v\u00e0 \u0111ang l\u00e0 \u0111\u00f2i h\u1ecfi c\u1ea5p b\u00e1ch.<\/p>\n T\u1eeb \u0111\u1ea7u nh\u1eefng n\u0103m 80, tr\u00ean c\u01a1 s\u1edf \u0111\u1ec1 t\u00e0i c\u1ea5p Nh\u00e0 n\u01b0\u1edbc, KS Tr\u1ea7n Thu\u1ef5 K\u1ef3 c\u00f9ng c\u00e1c c\u1ed9ng s\u1ef1 (Vi\u1ec7n CNR) \u0111\u00e3 ti\u1ebfn h\u00e0nh nghi\u00ean c\u1ee9u thi\u1ebft k\u1ebf ch\u1ebf t\u1ea1o v\u00e0 \u0111\u01b0a v\u00e0o \u1ee9ng d\u1ee5ng t\u1ea1i nhi\u1ec1u c\u01a1 s\u1edf CB g\u1ed7 m\u1ed9t d\u1ea1ng l\u00f2 s\u1ea5y h\u01a1i \u0111\u1ed1t, c\u00f3 k\u1ebft c\u1ea5u \u0111\u01a1n gi\u1ea3n, v\u1ed1n \u0111\u1ea7u t\u01b0 nh\u1ecf, \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c y\u00eau c\u1ea7u c\u01a1 b\u1ea3n v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng g\u1ed7 s\u1ea5y SX \u0111\u1ed3 m\u1ed9c. Cu\u1ed1i nh\u1eefng n\u0103m 80, PTS H\u1ed3 Xu\u00e2n C\u00e1c (\u0110\u1ea1i h\u1ecdc N\u00f4ng l\u00e2m- Th\u1ee7 \u0110\u1ee9c), PTS Tr\u1ea7n V\u0103n M\u00e3o (\u0110\u1ecba h\u1ecdc LN Xu\u00e2n Mai) c\u0169ng \u0111\u00e3 \u0111\u01b0a ra c\u00e1c d\u1ea1ng l\u00f2 s\u1ea5y, c\u00f3 nh\u1eefng c\u1ea3i ti\u1ebfn m\u1edbi, ph\u1ee5c v\u1ee5 k\u1ecbp th\u1eddi cho nhu c\u1ea7u s\u1ea5y g\u1ed7 SX \u0111\u1ed3 m\u1ed9c xu\u1ea5t kh\u1ea9u. \u0110\u1ea7u nh\u1eefng n\u0103m 90, tr\u00ean c\u01a1 s\u1edf k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u c\u1ee7a \u0111\u1ec1 t\u00e0i c\u1ea5p Ng\u00e0nh : “N\/C thi\u1ebft k\u1ebf c\u1ea3i ti\u1ebfn l\u00f2 s\u1ea5y g\u1ed7 \u0111\u01a1n gi\u1ea3n \u0111ang s\u1eed d\u1ee5ng v\u1edbi qui m\u00f4 nh\u1ecf”, PTS Tr\u1ea7n Tu\u1ea5n Ngh\u0129a (Vi\u1ec7n KHLNVN) \u0111\u00e3 ti\u1ebfn h\u00e0nh N\/C “X\u00e2y d\u1ef1ng ch\u1ebf \u0111\u1ed9 s\u1ea5y cho m\u1ed9t s\u1ed1 lo\u1ea1i g\u1ed7 r\u1eebng tr\u1ed3ng l\u00e0m nguy\u00ean li\u1ec7u SX v\u00e1n gh\u00e9p thanh v\u00e0 m\u1ed9c x\u00e2y d\u1ef1ng” (thu\u1ed9c ch\u01b0\u01a1ng tr\u00ecnh N\/C c\u1ea5p Nh\u00e0 n\u01b0\u1edbc KN03) \u0111\u1ea1t k\u1ebft qu\u1ea3. Ti\u1ebfp theo, v\u00e0o n\u0103m g\u1ea7n \u0111\u00e2y KS Tr\u1ea7n V\u0103n Quang (Trung t\u00e2m CNR), tr\u00ean c\u01a1 s\u1edf k\u1ebf th\u1eeba v\u00e0 c\u1ea3i ti\u1ebfn \u0111\u00e3 nghi\u00ean c\u1ee9u thi\u1ebft k\u1ebf v\u00e0 ch\u1ebf t\u1ea1o \u0111\u1ecbnh h\u00ecnh \u0111\u01b0\u1ee3c m\u1ed9t d\u1ea1ng l\u00f2 s\u1ea5y kh\u00e1 ho\u00e0n thi\u1ec7n, \u0111\u00e3 v\u00e0 \u0111ang \u0111\u01b0\u1ee3c nhi\u1ec1u c\u01a1 s\u1edf CB g\u1ed7 ti\u1ebfp nh\u1eadn chuy\u1ec3n giao. \u0110\u1eb7c bi\u1ec7t, t\u1eeb khi Trung t\u00e2m CNR c\u00f3 ch\u1ee7 tr\u01b0\u01a1ng k\u1ebft h\u1ee3p gi\u1eefa thi\u1ebft b\u1ecb v\u00e0 qui tr\u00ecnh s\u1ea5y g\u1ed7, th\u00ec hi\u1ec7u qu\u1ea3 kinh t\u1ebf, k\u1ef9 thu\u1eadt c\u1ee7a d\u1ea1ng l\u00f2 s\u1ea5y n\u00e0y c\u00e0ng th\u1ec3 hi\u1ec7n r\u00f5 r\u00e0ng h\u01a1n.<\/p>\n C\u1ea5u tr\u00fac c\u1ee7a d\u1ea1ng l\u00f2 s\u1ea5y n\u00e0y r\u1ea5t \u0111\u01a1n gi\u1ea3n v\u00e0 g\u1ed3m c\u00e1c b\u1ed9 ph\u1eadn : v\u1ecf l\u00f2 s\u1ea5y x\u00e2y d\u1ef1ng c\u1ed1 \u0111\u1ecbnh b\u1eb1ng c\u00e1c v\u1eadt li\u1ec7u XD th\u00f4ng d\u1ee5ng ; H\u1ec7 th\u1ed1ng nhi\u1ec7t g\u1ed3m bu\u1ed3ng c\u1ea5p nhi\u1ec7t (d\u00f9ng c\u1ee7i, m\u00f9n c\u01b0a, phoi b\u00e0o) v\u00e0 c\u00e1c \u1ed1ng to\u1ea3 nhi\u1ec7t (\u0111\u01b0\u1ee3c \u0111\u1eb7t trong bu\u1ed3ng s\u1ea5y v\u00e0 song song v\u1edbi xe g\u1ed7 s\u1ea5y) ; H\u1ec7 th\u1ed1ng l\u01b0u th\u00f4ng kh\u00ed g\u1ed3m c\u00e1c qu\u1ea1t tr\u1ee5c (\u0111\u1ea3o chi\u1ec1u quay) v\u00e0 c\u00e1c t\u1ea5m \u0111\u1ecbnh h\u01b0\u1edbng gi\u00f3 ; C\u00e1c thi\u1ebft b\u1ecb \u0111o nhi\u1ec7t \u0111\u1ed9, \u0111\u1ed9 \u1ea9m v\u00e0 gi\u00e0n phun \u1ea9m, c\u00e1c van x\u1ea3 \u1ea9m…<\/p>\n Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a d\u1ea1ng l\u00f2 s\u1ea5y n\u00e0y c\u0169ng r\u1ea5t \u0111\u01a1n gi\u1ea3n, nh\u01b0ng kh\u00e1 hi\u1ec7u qu\u1ea3 : Kh\u00ed n\u00f3ng t\u1eeb bu\u1ed3ng \u0111\u1ed1t, theo nguy\u00ean l\u00fd \u0111\u1ed1i l\u01b0u \u0111\u01b0\u1ee3c d\u1eabn v\u00e0o c\u00e1c \u1ed1ng to\u1ea3 nhi\u1ec7t, truy\u1ec1n cho kh\u00f4ng kh\u00ed (bao quanh \u1ed1ng d\u1eabn nhi\u1ec7t) v\u00e0 cu\u1ed1i c\u00f9ng theo \u1ed1ng kh\u00f3i, x\u1ea3 v\u00e0o kh\u00f4ng kh\u00ed ; Gi\u00e0n qu\u1ea1t tr\u1ee5c \u0111\u1eb7t trong bu\u1ed3ng s\u1ea5y, vu\u00f4ng g\u00f3c v\u1edbi xe g\u1ed7 s\u1ea5y, khi ho\u1ea1t \u0111\u1ed9ng s\u1ebd th\u1ed5i kh\u00f4ng kh\u00ed \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u1ed1t n\u00f3ng qua \u0111\u1ed1ng g\u1ed3 theo m\u1ed9t chu tr\u00ecnh kh\u00e9p k\u00edn v\u00e0 l\u00e0m kh\u00f4 g\u1ed7.<\/p>\n \u01afu th\u1ebf n\u1ed5i b\u1eadt c\u1ee7a d\u1ea1ng l\u00f2 s\u1ea5y l\u00e0 dung t\u00edch bu\u1ed3ng \u0111\u1ed1t \u0111\u00e3 gi\u1ea3m t\u1edbi m\u1ee9c t\u1ed1i \u0111a, tr\u00ean c\u01a1 s\u1edf v\u00f2m l\u00f2 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf c\u00f3 k\u1ebft c\u1ea5u kh\u00ed \u0111\u1ed9ng h\u1ecdc ph\u00f9 h\u1ee3p \u0111\u1ec3 c\u00f3 th\u1ec3 gi\u1ea3m \u0111\u01b0\u1ee3c t\u1ed1i \u0111a l\u01b0\u1ee3ng c\u1ee7i \u0111\u1ed1t, nh\u01b0ng c\u00f3 hi\u1ec7u su\u1ea5t cung c\u1ea5p nhi\u1ec7t t\u1ed1i \u0111a cho h\u1ec7 th\u1ed1ng to\u1ea3 nhi\u1ec7t. H\u1ec7 th\u1ed1ng l\u01b0u th\u00f4ng kh\u00ed c\u0169ng \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf c\u1ea3i ti\u1ebfn, l\u00e0m thay \u0111\u1ed5i c\u01a1 b\u1ea3n chu tr\u00ecnh th\u1ed5i gi\u00f3 qua \u0111\u1ed1ng g\u1ed7, gi\u1ea3m t\u1ed1i \u0111a h\u1ec7 s\u1ed1 m\u1ea5t m\u00e1t \u00e1p su\u1ea5t c\u1ee7a lu\u1ed3ng kh\u00ed l\u01b0u th\u00f4ng trong bu\u1ed3ng s\u1ea5y, t\u1eeb \u0111\u00f3 s\u1ef1 ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9 \u1edf c\u00e1c v\u1ecb tr\u00ed trong bu\u1ed3ng s\u1ea5y c\u0169ng kh\u00f4ng \u0111\u00e1ng k\u1ec3. Ngo\u00e0i ra, v\u1edbi vi\u1ec7c c\u1ea3i ti\u1ebfn m\u1ed9t ch\u00fat h\u1ec7 th\u1ed1ng phun, x\u1ea3 \u1ea9m, h\u1ec7 th\u1ed1ng c\u1eeda bu\u1ed3ng s\u1ea5y… c\u0169ng \u0111\u00e3 g\u00f3p ph\u1ea7n n\u00e2ng cao hi\u1ec7u su\u1ea5t s\u1eed d\u1ee5ng nhi\u1ec7t, v\u00e0 \u0111i\u1ec1u khi\u1ec3n \u0111\u01b0\u1ee3c m\u00f4i tr\u01b0\u1eddng s\u1ea5y trong bu\u1ed3ng s\u1ea5y.<\/p>\n L\u00f2 s\u1ea5y c\u1ea3i ti\u1ebfn \u0111\u00e3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt : Nhi\u1ec7t \u0111\u1ed9 s\u1ea5y \u0111\u1ea1t t\u1edbi 90oC<\/sup> ; t\u1ed1c \u0111\u1ed9 gi\u00f3 qua \u0111\u1ed1ng g\u1ed7 \u0111\u1ea1t kho\u1ea3ng 2 m\/s ; \u0111\u1ed9 \u1ea9m c\u1ee7a m\u00f4i tr\u01b0\u1eddng s\u1ea5y c\u00f3 th\u1ec3 \u0111i\u1ec1u khi\u1ec3n t\u1eeb \u00b390 % t\u1edbi 30% ; \u0110\u1ed9 \u1ea9m c\u1ee7a g\u1ed7 s\u1ea5y c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c 5 – 8%, ch\u1ea5t l\u01b0\u1ee3ng g\u1ed7 s\u1ea5y \u0111\u1ea1t ti\u00eau chu\u1ea9n SX \u0111\u1ed3 m\u1ed9c gia d\u1ee5ng v\u00e0 \u0111\u1ed3 m\u1ed9c xu\u1ea5t kh\u1ea9u ; Chi ph\u00ed s\u1ea5y (g\u1ed3m ch\u1ea5t \u0111\u1ed1t, \u0111i\u1ec7n n\u0103ng, nh\u00e2n c\u00f4ng) th\u1ea5p : 150.000\u0111\/m3 g\u1ed7 s\u1ea5y.<\/p>\n \u0110\u00e3 thi\u1ebft k\u1ebf, ch\u1ebf t\u1ea1o \u0111\u1ecbnh h\u00ecnh c\u00e1c d\u1ea1ng l\u00f2 s\u1ea5y dung t\u00edch 3 ; 5 v\u00e0 10 m3 g\u1ed7 s\u1ea5y\/m\u1ebb v\u1edbi chi ph\u00ed (g\u1ed3m c\u1ea3 chi ph\u00ed chuy\u1ec3n giao qui tr\u00ecnh s\u1ea5y) t\u01b0\u01a1ng \u1ee9ng l\u00e0 27,32 v\u00e0 40 tri\u1ec7u \u0111\u1ed3ng (t\u00ednh theo th\u1eddi gi\u00e1).<\/p>\n \u0110\u00e3 x\u00e2y d\u1ef1ng \u0111\u01b0\u1ee3c ch\u1ebf \u0111\u1ed9 s\u1ea5y cho h\u1ea7u h\u1ebft c\u00e1c lo\u1ea1i g\u1ed7 th\u00f4ng d\u1ee5ng \u0111\u1ec3 SX \u0111\u1ed3 m\u1ed9c gia d\u1ee5ng v\u00e0 m\u1ed9c x\u00e2y d\u1ef1ng v\u00e0 ph\u00e2n chia theo nh\u00f3m g\u1ed7 s\u1ea5y. Th\u1eddi gian s\u1ea5y ph\u1ee5 thu\u1ed9c v\u00e0o l\u1ecdai g\u1ed7, chi\u1ec1u d\u1ea7y g\u1ed7 s\u1ea5y v\u00e0 \u0111\u1ed9 \u1ea9m ban \u0111\u1ea7u c\u1ee7a g\u1ed7, t\u1eeb 3 ng\u00e0y \u0111\u1ebfn 3 tu\u1ea7n.<\/p>\n \u0110\u00e3 th\u1ef1c hi\u1ec7n h\u1ee3p \u0111\u1ed3ng chuy\u1ec3n giao thi\u1ebft b\u1ecb v\u00e0 qui tr\u00ecnh s\u1ea5y cho nhi\u1ec1u c\u01a1 s\u1edf CB g\u1ed7, v\u00ed d\u1ee5 nh\u01b0 trong th\u1eddi gian g\u1ea7n \u0111\u00e2y l\u00e0 : X\u00ed nghi\u1ec7p bao b\u00ec xu\u1ea5t kh\u1ea9u, X\u01b0\u1edfng CB g\u1ed7 l\u00e2m tr\u01b0\u1eddng U\u00f4ng B\u00ed (Qu\u1ea3ng Ninh), X\u00ed nghi\u1ec7p CB g\u1ed7, C\u00f4ng ty l\u00e2m nghi\u1ec7p v\u00e0 CB xu\u1ea5t nh\u1eadp kh\u1ea9u l\u00e2m s\u1ea3n 2 Y\u00ean B\u00e1i… v\u00e0 m\u1ed9t s\u1ed1 c\u01a1 s\u1edf SX \u0111\u1ed3 m\u1ed9c t\u01b0 nh\u00e2n.<\/p>\n L\u00f2 s\u1ea5y g\u1ed7 c\u1ea3i ti\u1ebfn c\u1ee7a Trung t\u00e2m CNR \u0111\u00e3 c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m n\u1ed5i b\u1eadt : K\u1ebft c\u1ea5u \u0111\u01a1n gi\u1ea3n, v\u1ed1n \u0111\u1ea7u t\u01b0 nh\u1ecf, d\u1ec5 v\u1eadn h\u00e0nh, \u0111\u1ecbnh m\u1ee9c n\u0103ng l\u01b0\u1ee3ng s\u1ea5y th\u1ea5p (kh\u00f4ng qu\u00e1 0,4 Ste g\u1ed7 c\u1ee7i\/m3 g\u1ed7 s\u1ea5y); d\u1ec5 d\u00e0ng v\u00e0 ch\u1ee7 \u0111\u1ed9ng \u0111i\u1ec1u khi\u1ec3n \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 s\u1ea5y, \u0111\u1ed9 \u1ea9m m\u00f4i tr\u01b0\u1eddng s\u1ea5y, n\u00ean c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c ch\u1ebf \u0111\u1ed9 s\u1ea5y m\u1ed9t c\u00e1ch kh\u00e1 ch\u00ednh x\u00e1c.<\/p>\n Tr\u00ean c\u01a1 s\u1edf k\u1ebft qu\u1ea3 c\u00e1c h\u1ee3p \u0111\u1ed3ng chuy\u1ec3n giao thi\u1ebft b\u1ecb v\u00e0 qui tr\u00ecnh s\u1ea5y m\u00e0 Trung t\u00e2m CNR \u0111\u00e3 th\u1ef1c hi\u1ec7n, ch\u00fang t\u00f4i cho r\u1eb1ng \u0111\u00e2y l\u00e0 d\u1ea1ng l\u00f2 s\u1ea5y g\u1ed7 r\u1ea5t ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c c\u01a1 s\u1edf ch\u1ebf bi\u1ebfn g\u1ed7 v\u00e0 l\u00e2m s\u1ea3n qui m\u00f4 nh\u1ecf hi\u1ec7n nay \u1edf VN.<\/p>\n Ch\u00fang t\u00f4i mong mu\u1ed1n \u0111\u01b0\u1ee3c h\u1ee3p t\u00e1c c\u00f9ng c\u00e1c c\u01a1 s\u1edf \u0111\u01b0a k\u1ef9 thu\u1eadt ti\u1ebfn b\u1ed9 n\u00e0y v\u00e0o SX \u0111\u1ec3 g\u00f3p ph\u1ea7n n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng c\u00e1c s\u1ea3n ph\u1ea9m g\u1ed7 v\u00e0 l\u00e2m s\u1ea3n, g\u00f3p ph\u1ea7n v\u00e0o c\u00f4ng cu\u1ed9c c\u00f4ng nghi\u1ec7p ho\u00e1 v\u00e0 hi\u1ec7n \u0111\u1ea1i ho\u00e1 c\u1ee7a n\u01b0\u1edbc nh\u00e0.<\/p>\n 2. H\u1ee3p t\u00e1c \u1ee9ng d\u1ee5ng k\u1ef9 thu\u1eadt ti\u1ebfn b\u1ed9 s\u1ea3n xu\u1ea5t v\u00e1n d\u00e1n qui m\u00f4 nh\u1ecf<\/b><\/p>\n Tr\u00ean c\u01a1 s\u1edf k\u1ebft qu\u1ea3 c\u1ee7a \u0111\u1ec1 t\u00e0i c\u1ea5p Ng\u00e0nh “Nghi\u00ean c\u1ee9u ch\u1ebf t\u1ea1o thi\u1ebft b\u1ecb v\u00e0 x\u00e2y d\u1ef1ng c\u00f4ng ngh\u1ec7 s\u1ea3n xu\u1ea5t v\u00e1n d\u00e1n kh\u1ed5 nh\u1ecf” c\u1ee7a Vi\u1ec7n C\u00f4ng nghi\u1ec7p r\u1eebng n\u0103m (1983), Trung t\u00e2m CNR \u0111\u00e3 ti\u1ebfn h\u00e0nh nghi\u00ean c\u1ee9u thi\u1ebft k\u1ebf ch\u1ebf t\u1ea1o \u0111\u1ecbnh h\u00ecnh d\u00e2y chuy\u1ec1n thi\u1ebft b\u1ecb v\u00e0 ho\u00e0n thi\u1ec7n c\u00f4ng ngh\u1ec7 s\u1ea3n xu\u1ea5t v\u00e1n qui m\u00f4 nh\u1ecf, chuy\u1ec3n giao th\u00e0nh c\u00f4ng cho nhi\u1ec1u c\u01a1 s\u1edf ch\u1ebf bi\u1ebfn g\u1ed7 qu\u1ed1c doanh v\u00e0o cu\u1ed1i nh\u1eefng n\u0103m 80 v\u00e0 \u0111\u1ea7u nh\u1eefng n\u0103m 90. \u0110\u1eb7c bi\u1ec7t trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, m\u00f4 h\u00ecnh d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t v\u00e1n d\u00e1n qui m\u00f4 nh\u1ecf c\u1ee7a Trung t\u00e2m CNR \u0111\u00e3 ph\u00e1t tri\u1ec3n r\u1ed9ng kh\u1eafp v\u00e0 ph\u00e1t huy hi\u1ec7u qu\u1ea3 kinh t\u1ebf t\u1ea1i nhi\u1ec1u t\u1ed5 h\u1ee3p s\u1ea3n xu\u1ea5t t\u01b0 nh\u00e2n \u1edf H\u00e0 N\u1ed9i v\u00e0 c\u00e1c t\u1ec9nh mi\u1ec1n n\u00fai ph\u00eda B\u1eafc.<\/p>\n T\u1eeb n\u0103m 1998, Trung t\u00e2m CNR \u0111\u00e3 \u0111\u01b0a ra ph\u01b0\u01a1ng th\u1ee9c m\u1edbi: H\u1ee3p t\u00e1c v\u1edbi c\u00e1c \u0111\u1ecba ph\u01b0\u01a1ng \u0111\u1ec3 \u0111\u01b0a k\u1ef9 thu\u1eadt ti\u1ebfn b\u1ed9 v\u00e0o c\u00e1c c\u01a1 s\u1edf s\u1ea3n xu\u1ea5t. C\u00f4ng ty LS B\u1eafc C\u1ea1n \u0111\u00e3 h\u1ee3p t\u00e1c v\u1edbi Trung t\u00e2m t\u1ed5 ch\u1ee9c s\u1ea3n xu\u1ea5t v\u00e1n d\u00e1n qui m\u00f4 nh\u1ecf t\u1ea1i th\u1ecb x\u00e3 B\u1eafc C\u1ea1n.<\/p>\n Trung t\u00e2m CNR \u0111\u1ea7u t\u01b0 d\u00e2y chuy\u1ec1n thi\u1ebft b\u1ecb, \u0111\u00e0o t\u1ea1o c\u00f4ng nh\u00e2n v\u1eadn h\u00e0nh thi\u1ebft b\u1ecb v\u00e0 chuy\u1ec3n giao c\u00f4ng ngh\u1ec7 s\u1ea3n xu\u1ea5t; C\u00f4ng ty LS B\u1eafc C\u1ea1n \u0111\u1ea7u t\u01b0 nh\u00e0 x\u01b0\u1edfng , v\u1ed1n l\u01b0u \u0111\u1ed9ng v\u00e0 t\u1ed5 ch\u1ee9c s\u1ea3n xu\u1ea5t. Hai b\u00ean c\u00f9ng tham gia t\u00ecm th\u1ecb tr\u01b0\u1eddng ti\u00eau th\u1ee5 s\u1ea3n ph\u1ea9m. L\u1ee3i nhu\u1eadn th\u00f4ng qua s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c chia theo t\u1ef7 l\u1ec7 g\u00f3p v\u1ed1n c\u1ee7a m\u1ed7i b\u00ean. Trong th\u1eddi gian th\u1ef1c hi\u1ec7n h\u1ee3p \u0111\u1ed3ng, n\u1ebfu c\u01a1 s\u1edf s\u1ea3n xu\u1ea5t th\u1ea5y \u0111\u00e3 c\u00f3 \u0111\u1ee7 \u0111i\u1ec1u ki\u1ec7n, Trung t\u00e2m CNR s\u1ebd chuy\u1ec3n giao ngay d\u00e2y chuy\u1ec1n thi\u1ebft b\u1ecb, nh\u01b0ng v\u1eabn ti\u1ebfp t\u1ee5c h\u1ed7 tr\u1ee3 v\u1ec1 k\u1ef9 thu\u1eadt v\u00e0 c\u00f4ng ngh\u1ec7 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o cho d\u00e2y chuy\u1ec1n ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh v\u00e0 li\u00ean t\u1ee5c.<\/p>\n T\u1ed5ng v\u1ed1n \u0111\u1ea7u t\u01b0 cho d\u00e2y chuy\u1ec1n thi\u1ebft b\u1ecb (theo th\u1eddi gi\u00e1) l\u00e0 120 tri\u1ec7u VN \u0111\u1ed3ng, g\u1ed3m c\u00e1c thi\u1ebft b\u1ecb: m\u00e1y b\u00f3c g\u1ed7, c\u01b0a x\u0103ng c\u1eaft kh\u00fac g\u1ed7 tr\u00f2n, thi\u1ebft b\u1ecb x\u00e9n v\u00e1n b\u00f3c, m\u00e1y tr\u00e1ng keo, m\u00e1y \u00e9p v\u00e1n d\u00e1n, m\u00e1y x\u00e9n c\u1ea1nh v\u00e1n d\u00e1n. Trong th\u1eddi gian \u0111\u1ea7u s\u1ea3n xu\u1ea5t, nhi\u1ec1u c\u01a1 s\u1edf ch\u01b0a \u0111\u1ea7u t\u01b0 thi\u1ebft b\u1ecb s\u1ea5y v\u00e1n b\u00f3c m\u00e0 th\u01b0\u1eddng t\u1eadn d\u1ee5ng tr\u01a1\u00ec n\u1eafng \u0111\u1ec3 ph\u01a1i v\u00e1n b\u00f3c,\u0111\u1ebfn khi s\u1ea3n xu\u1ea5t \u1ed5n \u0111\u1ecbnh ho\u1eb7c do nhu c\u1ea7u ph\u1ea3i t\u0103ng kh\u1ed1i l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m (c\u1ea7n s\u1ea3n xu\u1ea5t 2,3 ca)th\u00ec s\u1ebd \u0111\u1ea7u t\u01b0 ti\u1ebfp thi\u1ebft b\u1ecb s\u1ea5y. Nh\u1eefng n\u0103m tr\u01b0\u1edbc \u0111\u00e2y trong d\u00e2y chuy\u1ec1n thi\u1ebft b\u1ecb c\u00f2n c\u00f3 thi\u1ebft b\u1ecb t\u1ed5ng h\u1ee3p keo d\u00e1n. Nh\u01b0ng hi\u1ec7n nay ch\u00fang t\u00f4i cho r\u1eb1ng vi\u1ec7c s\u1eed d\u1ee5ng tr\u1ef1c ti\u1ebfp c\u00e1c s\u1ea3n ph\u1ea9m keo d\u00e1n c\u1ee7a n\u01b0\u1edbc ngo\u00e0i \u0111ang c\u00f3 tr\u00ean th\u1ecb tr\u01b0\u1eddng VN l\u00e0 h\u1ee3p l\u00fdv\u00e0 c\u00f3 hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n To\u00e0n b\u1ed9 c\u00e1c thi\u1ebft b\u1ecb trong d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t v\u00e1n d\u00e1n qui m\u00f4 nh\u1ecf \u0111\u1ec1u do Trung t\u00e2m CNR thi\u1ebft k\u1ebf v\u00e0 ch\u1ebf t\u1ea1o. Qua th\u1ef1c t\u1ebf s\u1ea3n xu\u1ea5t, t\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb trong d\u00e2y chuy\u1ec1n n\u00e0y ho\u1ea1t \u0111\u1ed9ng kh\u00e1 \u1ed5n \u0111\u1ecbnh, ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m \u0111\u1ea1t ti\u00eau chu\u1ea9n s\u1ea3n xu\u1ea5t \u0111\u1ed3 m\u1ed9c.<\/p>\n Qua 1 n\u0103m h\u1ee3p t\u00e1c s\u1ea3n xu\u1ea5t v\u00e1n d\u00e1n ch\u00fang t\u00f4i th\u1ea5y r\u1eb1ng \u0111\u00e2y l\u00e0 ph\u01b0\u01a1ng th\u1ee9c ph\u00f9 h\u1ee3p \u0111\u1ec3 \u0111\u01b0a k\u1ef9 thu\u1eadt ti\u1ebfn b\u1ed9 v\u00e0o s\u1ea3n xu\u1ea5t. B\u1edfi v\u00ec ch\u1ec9 khi tr\u1ef1c ti\u1ebfp th\u00f4ng qua k\u1ebft qu\u1ea3 ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb trong d\u00e2y chuy\u1ec1n v\u00e0 hi\u1ec7u qu\u1ea3 kinh t\u1ebf, x\u00e3 h\u1ed9i m\u00e0 n\u00f3 mang l\u1ea1i m\u1edbi c\u00f3 s\u1ee9c thuy\u1ebft ph\u1ee5c l\u1edbn nh\u1ea5t \u0111\u1ec3 c\u00e1c c\u01a1 s\u1edf v\u00f9ng xa m\u1ea1nh d\u1ea1n \u0111\u1ea7u t\u01b0 thi\u1ebft b\u1ecb v\u00e0 ti\u1ebfp thu c\u00f4ng ngh\u1ec7 m\u1edbi.<\/p>\n D\u00e2y chuy\u1ec1n thi\u1ebft b\u1ecb SXv\u00e1n d\u00e1n c\u00f4ng su\u1ea5t 250 m3(1 ca), 450 m3(2 ca), 600 m3(3 ca)\/n\u0103m, t\u01b0\u01a1ng \u1ee9ng s\u1eed d\u1ee5ng 18, 35, 50 nh\u00e2n c\u00f4ng, thu nh\u1eadp b\u00ecnh qu\u00e2n 400.000 VN\u0111\u1ed3ng\/th\u00e1ng. C\u00f3 th\u1ec3 s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c c\u00e1c lo\u1ea1i v\u00e1n d\u00e1n k\u00edch th\u01b0\u1edbc: 1x1m, 1×1,2m, 1,2×1,2m v\u1edbi c\u00e1c chi\u1ec1u d\u1ea7y:4, 6, 7,5, 9, 12, 15, v\u00e0 18mm.<\/p>\n D\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t v\u00e1n d\u00e1n qui m\u00f4 nh\u1ecf \u0111\u00e3 \u0111\u1ea1t \u0111\u01b0\u1ee3c nh\u1eefng \u01b0u \u0111i\u1ec3m n\u1ed5i b\u1eadt v\u1ec1 k\u1ef9 th\u1eadt, kinh t\u1ebf v\u00e0 x\u00e3 h\u1ed9i:<\/b><\/p>\n – V\u1ed1n \u0111\u1ea7u t\u01b0 kh\u00f4ng l\u1edbn, th\u1eddi gian thu h\u1ed3i v\u1ed1n nhanh (N\u1ebfu t\u1ed5 ch\u1ee9c s\u1ea3n xu\u1ea5t 1ca- 2n\u0103m, 2ca-1n\u0103m, 3ca- 9 th\u00e1ng).<\/p>\n – K\u1ef9 thu\u1eadt v\u1eadn h\u00e0nh thi\u1ebft b\u1ecb v\u00e0 c\u00f4ng ngh\u1ec7 s\u1ea3n xu\u1ea5t \u0111\u01a1n gi\u1ea3n d\u1ec5 ph\u1ed5 c\u1eadp.<\/p>\n – N\u00e2ng cao hi\u1ec7u qu\u1ea3 s\u1eed d\u1ee5ng g\u1ed7 t\u1ea1p, g\u1ed7 r\u1eebng tr\u1ed3ng, t\u1ea1o ra s\u1ea3n ph\u1ea9m m\u1edbi ph\u1ee5c v\u1ee5 cho nhu c\u1ea7u ti\u00eau d\u00f9ng ng\u00e0y c\u00e0ng t\u0103ng c\u1ee7a x\u00e3 h\u1ed9i.<\/p>\n – G\u00f3p ph\u1ea7n v\u00e0o m\u1ee5c ti\u00eau x\u00e2y d\u1ef1ng c\u00e1c c\u1ee5m c\u00f4ng nghi\u1ec7p nh\u1ecf, t\u1ea1o th\u00eam vi\u1ec7c l\u00e0m v\u00e0 n\u00e2ng cao \u0111\u1eddi s\u1ed1ng cho c\u00e1c d\u00e2n t\u1ed9c mi\u1ec1n n\u00fai.<\/p>\n Result of the transfer of equipment and technology for small-scale<\/b><\/p>\n wood and forest product processing<\/b><\/p>\n Summary<\/b><\/p>\n Based on the result of research on wood and forest product processing equipment and technology, the Centre of Forest Industry in recent years has further improved and perfected the equipment and technology, successfully implemented many technology transfer contracts with production units: transfer of equipment and technology for kiln-drying of timber, small-scale plywood production. Timber kiln-drying equipment has been improved, perfected and manufactured at the experimental workshop of the Centre with 3,5,10 m3<\/sup> of timber\/batch and the equipment was transferred in package contracts to production units. Contracts were signed with production units for small- width board production equipment and technology transfer with both sides co-operating in investment.<\/p>\n ***********************************************<\/p>\n","protected":false},"excerpt":{"rendered":" M\u00e1y b\u0103m d\u0103m c\u1ee1 nh\u1ecf MB-930.B do Trung t\u00e2m C\u00f4ng nghi\u1ec7p r\u1eebng thu\u1ed9c Vi\u1ec7n KHLN Vi\u1ec7t Nam nghi\u00ean c\u1ee9u thi\u1ebft k\u1ebf v\u00e0 k\u1ebft h\u1ee3p v\u1edbi C\u00f4ng ty B\u00e1ch khoa – Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc B\u00e1ch khoa H\u00e0 N\u1ed9i ch\u1ebf t\u1ea1o \u0111\u00e3 \u0111\u01b0a v\u00e0o s\u1ea3n xu\u1ea5t \u1edf v\u00f9ng nguy\u00ean li\u1ec7u gi\u1ea5y ph\u00eda B\u1eafc. Hi\u1ec7n nay c\u00f3 2 m\u00e1y \u0111ang ho\u1ea1t \u0111\u1ed9ng t\u1ea1i t\u1ec9nh Ph\u00fa Th\u1ecd s\u1ea3n xu\u1ea5t d\u0103m cung c\u1ea5p cho nh\u00e0 m\u00e1y gi\u1ea5y B\u00e3i B\u1eb1ng, gi\u1ea3i quy\u1ebft vi\u1ec7c l\u00e0m cho c\u00f4ng nh\u00e2n. Tuy nhi\u00ean v\u1edbi 2 m\u00e1y \u0111ang ho\u1ea1t \u0111\u1ed9ng c\u00f3 t\u00ednh n\u0103ng k\u1ef9 thu\u1eadt nh\u01b0 nhau, nh\u01b0ng n\u0103ng su\u1ea5t s\u1ea3n xu\u1ea5t l\u1ea1i r\u1ea5t kh\u00e1c nhau : M\u00e1y s\u1ed1 1 \u0111\u1ea1t n\u0103ng su\u1ea5t b\u00ecnh qu\u00e2n 3,5 t\u1ea5n\/gi\u1edd, m\u00e1y s\u1ed1 2 n\u0103ng su\u1ea5t b\u00ecnh qu\u00e2n 6 t\u1ea5n\/gi\u1edd. Trong khi c\u00e1c y\u1ebfu t\u1ed1 v\u1ec1 lo\u1ea1i nguy\u00ean li\u1ec7u v\u00e0 c\u00f4ng nh\u00e2n s\u1ea3n xu\u1ea5t g\u1ea7n nh\u01b0 nhau. V\u1eady n\u00ean ch\u00fang t\u00f4i ph\u1ea3i \u0111\u1eb7t v\u1ea5n \u0111\u1ec1 nghi\u00ean c\u1ee9u c\u00e1c y\u1ebfu t\u1ed1 v\u1ec1 thi\u1ebft b\u1ecb hay t\u1ed5 ch\u1ee9c SX \u0111\u00e3 l\u00e0m cho n\u0103ng su\u1ea5t m\u00e1y t\u0103ng l\u00ean g\u1ea7n g\u1ea5p \u0111\u00f4i nh\u01b0 th\u1ef1c t\u1ebf \u0111\u00e3 di\u1ec5n ra nh\u1eb1m gi\u00fap cho c\u01a1 s\u1edf ch\u1ec9 \u0111\u1ea1o s\u1ea3n xu\u1ea5t ho\u1ea1t \u0111\u1ed9ng c\u00f3 hi\u1ec7u qu\u1ea3.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[18],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/279"}],"collection":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/comments?post=279"}],"version-history":[{"count":3,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/279\/revisions"}],"predecessor-version":[{"id":19385,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/279\/revisions\/19385"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=279"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=279"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=279"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n\n
\n a<\/td>\n 0,20<\/td>\n 0,25<\/td>\n 0,30<\/td>\n<\/tr>\n \n Q<\/td>\n 0,0483 d2<\/sup><\/td>\n 0,0604 d2<\/sup><\/td>\n 0,0725 d2<\/sup><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \n\n
\n d<\/td>\n 6<\/td>\n 7<\/td>\n 8<\/td>\n 9<\/td>\n 10<\/td>\n 11<\/td>\n 12<\/td>\n<\/tr>\n \n Q1<\/sub><\/td>\n 1,74<\/td>\n 2,37<\/td>\n 3,09<\/td>\n 3,91<\/td>\n 4,83<\/td>\n 5,84<\/td>\n 6,95<\/td>\n<\/tr>\n \n Q2<\/sub><\/td>\n 2,17<\/td>\n 2,96<\/td>\n 3,86<\/td>\n 4,89<\/td>\n 6,04<\/td>\n 7,30<\/td>\n 8,70<\/td>\n<\/tr>\n \n Q3<\/sub><\/td>\n 2,61<\/td>\n 3,55<\/td>\n 4,64<\/td>\n 5,87<\/td>\n 7,25<\/td>\n 8,77<\/td>\n 10,44<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n