L Vn Qun, Phm nh Mnh Phn xng Filament
L Vn Qun, Phm nh Mnh Phn xng Filament
MC LC
Bi ging v phn xng PSF21.Trnh t22.Ni dung23.Thi gian ging dy2Bi
ging3I.Qu trnh spinning31.Dng nhit32.Ra melt ca h thng ng ng dn
melt chnh33.Ra melt ca spin beam34.Chun b v vn hnh spin pack35.Vn
hnh spin pump46.Vn hnh spin beam47.Hot ng ca vng lm lnh58.Hot ng ca
thit b ra si69.Tnh ton cc thng s6II.Qu trnh ko81.ng thng82.Gin
dn83.Ko si94.Xp chng t ( tow stacker)105.To np (crimping)106.Lm
kh117.Ct si118.Ln du (spin finish)12III.Thng s sn xut13IV.Mc tiu sn
xut16V.Ch tiu cht lng17
Bi ging v phn xng PSF1. Trnh t Bc 1: HEC s ging dy cho cc k s di
s gim st ca cc qun l. Bc 2: K s PVTEX s ging dy cho cc cng nhn v nh
gi li qua bi thi2. Ni dungnh gi v qu trnh sn xut bao gm: Phng php
ci thin cht lng ? Phng php ci thin qu trnh sn xut ? Tnh ton cc thng
s ca qu tnh sn xut Nhim v ca cn b iu hnh ti v tr ca h X l s c ti im
quan st spinning3. Thi gian ging dyBc 1: 1 tunBc 2: 1 tun
Bi gingI. Qu trnh spinning1. Dng nhit1.1. H thng nhit s dng nhit
t HTM ca poly, HTM t boiler cho spinning1.2. HTM: c trng ca HTM1.3.
B phn cn gia nhit: h thng ng ng polymer chnh, cc nhnh, thit b lm
lnh melt, cc ng ng phn phi, spin beam1.4. Nhit gia nhit: tc gia
nhit, n nh nhit, nhit ca spinning.1.5. Cc vn v qu nhit: c tnh ca
polymer, MO, gim nh, cacbon ha dng melt2. Ra melt ca h thng ng ng
dn melt chnh2.1. Dng c ra: thng cha, dng c xoay bng tay2.2. ng van
chnh trc khi ra2.3. Dng c xoay bng tay ca booster pump2.4. M cc van
ra chnh: cht lng melt, p sut melt, tc bm2.5. Lin lc vi phng DCS v
phng iu khin spinning2.6. X l cc melt ra2.7. Kt thc qu trnh ra: da
vo nht ca melt3. Ra melt ca spin beam3.1. Dng c ra : thng cha melt,
xe y, bnh bm silicon, dng c no vt3.2. Thit b bo h: gang tay da, vng
tay, m bo h3.3. V tr nguy him: kh, phun melt, melt3.4. Mng chn bo
v: ch dng cho S-41, 4 v tr ( 11,12,35,36)3.5. Kim tra hot ng ca
spin pump: dng c quay bng tay3.6. Ravi mng chn v kt thc qu trnh ra
vi spin pump3.7. S spin pump hot ng: 6 bm cho 1 cm iu khin3.8. Phng
php ra: ci thin melt bn thnh melt sch4. Chun b v vn hnh spin
pack4.1. Lm sch bi kim loi: tch loi bng ct, cc vt liu khc lm
sch4.2. Lc : ra sch bi v kim, cc li4.3. Ph kin ca pack: sa cha cc
bin dng, cc phn b try xc, v m bo tnh trng sch s ca pack4.4. a
spinneret: kim tra k cng, sa cha cc li v l bn4.5. Lp rp: kim tra
bin dng ca cc l, m bo chnh xc v lng bi kim loi, th t v v tr chnh xc
ca thit b lc, trnh bi, c nh chc chn v tr cc sng.4.6. Sp xp v tin
gia nhit: quan tm n v tr y ca pack ( t phn tch ca spinneret )4.7.
Tho d: ch khi tho d cc tm l 1 ( trnh b bin dng)4.8. Cc vn v li xy
ra: Xc b mt lm hng dng c no vt lm khng sch L b bn hoc khuyt tt nh
hng n chy ng u ca lu lng dng melt chy nhanh hoc nh rt. Cc bi, bn
trong bt kim loi gy ra tc thit b lc qu trnh lc chm pha trn vo trong
si si d t.5. Vn hnh spin pump5.1. Thng s hot ng bn u: 9rpm 5.2. Hot
ng n nh: vn tc n nh5.3. Nng sut: khi lng melt 1 v tr trong 1 phtNng
sut = 161 * SG ca melt * rpm = pos. den * tc ca spinning/9000 (
g/min.pos )6. Vn hnh spin beam6.1. Nhit : MP ca melt + 25 oC Nhit
cao lm lnh chm gim OS gim bn Nhit thp lm lnh nhanh OS cao DR
thp.6.2. p sut pack p sut cao nht cao - tc lc S tng ln ca p sut
pack nu kh nng dn thp loi b Nu kh nng ko dn hp l sn phm t yu
cu46.3. Tui th pack : n khi p sut gp 2 ln p sut ban u Hoc 2 thng mc
d ko gp li g.7. Hot ng ca vng lm lnh7.1. Lc bt: L phn quan trng nht
trong spinning Trnh bi, bin dng, xc ( lm sch 3 tun/1ln ) chnh lch
gia trn v di r g khng kh phun, hoc nh git,FF, long plastic7.2. V tr
ca sng: Quyt nh chiu di ca np, 5mm chiu di np = 1% gi tr OS 7.3.
Vng du Lm sch vng, ngn nga r g7.4. Thn lc Thng, d dng ln xung Sp xp
thng hang, chnh xc7.5. Thng ht oligomer Lm sch oligomer bn trong nh
k Kim tra nim phong ca vng, phn ko c du nim phong b r g. Th tch
khng kh : M 25% van, lp rp theo bn v7.6. Lm lnh khng kh: Kim tra
AHU, v tr ht v lc kh Ch khng kh, khong chnh lch nhit , v m Th tch
khng kh ca mi v tr : 1700 +- 50 m3/h S chnh lch c lm lnh dev. ca
cht lng sp xu7.7. B phn hi t/cui : Kim tra b mt: gy b mt, bc b mt
melt Tch u nhng s c lm lnh7.8. Ngn chn hin tng phun hoc nh git: Lm
sch cc thnh phn bn trong, cc np v y Kim tra du vt ca hin tng
phun/nh git v lm sch spinneret L nguyn nhn bc: m sch tng v tr trc
khi u ko ( tow ) c th chuyn i ( tt ).8. Hot ng ca thit b ra si8.1.
Ch dn/Kim tra trc quay: v tr, b mt, tin trnh quay, finish scum, chc
nng8.2. Thit b ni: kim tra li chc nng v thit lp thit b8.3. Thanh
treo: kim tra v tr, chc nng v thit lp8.4. Nguyn nhn s qun Stick tow
: m qu cao t t: phun, nh git, FF, plastic Sc cng UDY khng hp l:
thit lp li tc ca cc trc quay Li khp ni8.5. Tc spinning: = nng
sut*9000/denier ca tng pos (m/min) = tc thc ca UDY 25m ca tc
spinning = 1% gi tr OS Tc t thc t ca spinning: 1260 1270m/min8.6.
Tc b sung: Tc spinning + tc trt ca UDY trn trc quay Tl trt: trc
nguyn liu ( feed roller ) 5% , Sunflower 3% Ci t : tc trc nguyn
liu: 1.05*tc spinning Tc a phun : 1.03* tc spinning8.7. S khu vc
hot ng ng thng bnh thng sau khi wrapping: 16-24 pos V vy tng tc ca
spinning sau khi nhng v tr ny hot ng bnh thng.9. Tnh ton cc thng s
9.1. nht ca melt ( trn DCS)(1) >= IV0.66 sn xut v cht lng sp tt,
nhng sp cng(2) > 0.66 sn xut v cht lng sp km , nhng sp mm9.2. Tc
spinning (1). 1260 1270m/min kh nng ko tt(2). >1260 hoc
