Công-nghệ-sản-xuất-NaCl-từ-nước-biển 2

Cng ngh sn xut NaCl t
nc bin
Nhm sinh vin thc hin : Nhm 6 : Bi Ngc nh
Phm Hng t
Ha S Hip
Nguyn Th Nhung
o Trng V
Ni dung chnh
Gii thiu chung v NaCl
Sn xut NaCl
Cng ngh sn xut mui theo phng php
phi nc
Gii php k thut nng cao hiu qu nng
sut v cht lng mui
ng dng
Phn 1:Gii thiu chung v NaCl

Cng thc phn t : NaCl
Tn khc : mui n, halua
Phn t gam : 58,4g/mol
L cht rn kt tinh mu trng hay
khng mu.
im nng chy : 801C
Cu trc tinh th clorua natri.

Mi nguyn t c 6 nguyn t
cn k to ra cu trc bt din.
S phn b ny c gi lkhi
lp phng kn
Lc sm =Na+
Lam nht =Cl-
Phn 2 : Sn xut NaCl

Mui m
M mui Detroit, M
Tinh th mui m
Sn xut mui t nc bin

Yu cu :
- Cn mt lng ln sn xut
- Nng mui phi cao
- Sch, t bn ct.
Tinh th mui sn xut t nc

bin
c im ca nc bin
- Thnh phn ca nc bin
- Thnh phn mui c

trong nc bin
Cc yu t nh hng n nng nc bin
Ma bin
Nc ngt t lc a chy ra
bin
Bng tan
Thy triu
nh ngha:l hin tng

ncbin, ncsng... ln
xung trong mt chu k thi
gian ph thuc bin
chuynthin vn.
Nguyn nhn
+ Nguyn nhn chinh l do s tc

ng ca bn ngoi.
+ Ngoi ra thy triu cn chu nh

hng ca kh tng v a hnh.
Thy triu mt s vung bin Vit Nam
Vng ven bin Bc B v Thanh Ha
Vng ven bin Qung Tr, Tha Thiu Hu , Bc Qung Nam
Vng ven bin gia Qung Nam ti Bc Nam B
Phn 4 : Cng ngh sn xut mui theo phng php phi nc
M hnh chung ca ng mui phi nc :

Nc
bin
Nc t
Cng nghnh,
trm bm
H cha
Khu bay hi
Khu kt tinh mui

cng on 2
Khu kt tinh mui

cng on 1
Khu kt tinh thch

cao
Sn phm
NaCL loi II
Sn phm
NaCL loi I
Sn phm
CaSO4.2H2O
ly nc bin vo cc
ng mui, ta thng tn
dng chiu cao thy triu
ly nc t lu qua cng
nghnh (cng n nc
thy triu), trng hp nc
t lu thiu s c b
sung bng ngun nc
ng lc (s dng bm).
Sau khi qua cng nghnh,
nc c lu ti cc h
cha chun b cho qu
trnh sn xut mui, nc
ngt cng bay hi mt phn
tang nng mui.
Cng ly nc bin
Rung mui c lm thnh hai cp sn, thp dn khong 15cm.

Mi sn u san phng, p b chia vung vn; mi thng l
4mx 10 m.
Ngoi ra th sau khi qua rung chu cn c cc trung cp kt

tinh nt phn thch cao cn li trong nc cht. Sau khi ra khi cc
trung cp, nc cht c mui khong 25Be.
Sn phm NaCl ca cng on 2 l sn phm c cht lng thp hn

sn phm NaCl ca cng on 1 ( hay hm lng NaCl nh hn)
Khi dch lng (nc t) cng on cui cng t nng quy nh th

c chuyn sang khu vc tp trung nc t.
Sn xut mui bin bng phng php phi nc c kh nng cho sn

lng ln v cht lng sn phm mui bin cao (tha mn yu cu v
cht
lng mui ca sn xut cng nghip).
Bng 1.1: Xc nh phm cp ca sn phm

Nng
ban u
Be
Nng
cui
Be
NaCl tch
ra
(gam)
Tp cht
tch ra
(gam)
Sn phm
t
%
25
26,25
3,26
0,06
98,2
25
28,5
20,81
0,47
97,8
25
35
27,10
1,29
95,5
26,25
27
9,65
0,2
98
26,25
30,2
20,17
0,5
97,6
26,25
35
23,84
1,23
95,1
27
32,4
12,79
0,4
97
27
35
14,19
1,03
93,2
28,5
35
6,29
0,82
88,5
30,2
35
3,67
0,73
83,4
32,4
35
1,4
0,63
69,0
(Sn phm in mu l nhng sn phm khng cht lng phc v cc

nghnh cng nghip)
Phn 5 : Gii php k thut nng cao hiu qu

nng sut v cht lng mui
Thay vic phi nc cht trn nn t hoc xi mng nh trc (phng

php ny cho mui c tinh khit khng cao) bng vic phi trn bt.
Bt c s dng l bt HDPE dy 0,75mm-1,00mm c bn cao, chu

c thi tit nng nng, kh nng hp th nhit lng mt tri tt gip
cho qu trnh bay hi nc nhanh, khng UV cao... ng thi, bt cng
m bo dy v do t b rch khi thu hoch.
K thut tri bt : Bt HDPE c tri trn nn ct m cht hoc

Xi mng c san phng v m k. Sau dng inh tre, g di
10cm ghim xung quanh b, c 30 - 40cm th ghim 01 inh, xung quanh
p g ngn cc vi nhau, mi kt tinh dng ng nha PVC c
x rnh trn thn ng khong 15-20 cm dn kh ra ngoi. Dng keo
dn mp bt (trc khi dn mp phi lm phng mt bt, p cho khng
kh ra ht ngoi th khi tri bt v khi phi bt khng b phng.
Li ch :
Nng sut mui theo phng php mi t khong 120 tn/ha, cao hn
t 20 n 40 tn/ha so vi phng php truyn thng.
Cht lng mui ht to, trng hn rt nhiu so vi sn xut thng

thng vbn c gi cao hn.
Chi ph chi ph cho mt mt vung bt phi mui tng ng vi chi ph

lm ra cng mt din tch Xi mng tuy nhin tui th ca bt vo
khong 10 n 20 nm ty thuc vo dy ca bt HDPE, gp 4-6 ln
tui th ca Xi mng.
Qu trnh thu hoch mui phi trn bt

cng nhanh hn v co n u, c bn
sch mui n nn gim c thi gian
v sc lao ng trong qu trnh sn xut,
v c th kt hp vi vic thu gom mui
bng h thng thy lc.
Vn chuyn bng thy lc
Phn 6 : ng dng
Thnh phn mui Nacl c trong khong 14000 sn phm trn th trng
th gii. Th trng mui th gii chia ra cc ngnh : dng cho cng
nghip ha cht 60%; dng cho ch bin thc phm 30%; v cc mc
ch khc chim 10%.

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Công-nghệ-sản-xuất-NaCl-từ-nước-biển 2

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Cng ngh sn xut NaCl t

Phn 1:Gii thiu chung v NaCl

Cu trc tinh th clorua natri.

Phn 2 : Sn xut NaCl

Sn xut mui t nc bin

Tinh th mui sn xut t nc

- Thnh phn mui c

Cc yu t nh hng n nng nc bin

nh ngha:l hin tng

+ Nguyn nhn chinh l do s tc

+ Ngoi ra thy triu cn chu nh

Thy triu mt s vung bin Vit Nam

Vng ven bin Bc B v Thanh Ha

Vng ven bin Qung Tr, Tha Thiu Hu , Bc Qung Nam

Vng ven bin gia Qung Nam ti Bc Nam B

Phn 4 : Cng ngh sn xut mui theo phng php phi nc

M hnh chung ca ng mui phi nc :

Khu kt tinh mui

Khu kt tinh mui

Khu kt tinh thch

Rung mui c lm thnh hai cp sn, thp dn khong 15cm.

Ngoi ra th sau khi qua rung chu cn c cc trung cp kt

Sn phm NaCl ca cng on 2 l sn phm c cht lng thp hn

Khi dch lng (nc t) cng on cui cng t nng quy nh th

Sn xut mui bin bng phng php phi nc c kh nng cho sn

Bng 1.1: Xc nh phm cp ca sn phm

(Sn phm in mu l nhng sn phm khng cht lng phc v cc

Phn 5 : Gii php k thut nng cao hiu qu

Thay vic phi nc cht trn nn t hoc xi mng nh trc (phng

Bt c s dng l bt HDPE dy 0,75mm-1,00mm c bn cao, chu

K thut tri bt : Bt HDPE c tri trn nn ct m cht hoc

Cht lng mui ht to, trng hn rt nhiu so vi sn xut thng

Chi ph chi ph cho mt mt vung bt phi mui tng ng vi chi ph

Qu trnh thu hoch mui phi trn bt

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