KHOA HOC VA CfiNG NGHl MO J^JJJ
^DRNH Gin KHR NflNG LOC CUfl CAN BC CO DflC PHAN X O ^ G TUYEN 2 - CONG TY TUYEN THAN CUTA ONG
^ v i bieu thj s y khd de loc cDa vgt ligu ngudi ta
^ ^ i dung chi so Ige (K Ruth) va chi s i d n Ige (a
^ ^ Rutii). Trong dd chi d K Rutii duge xde dinh b i n g ttiyc nghigm khi xdc djnh m i i quan hg gi&a thdi gian Ipe va lugng nLPOC Ipc thu duge, d i s i K Ruth va chi s i a Rutti d u g c xac ffinh bang d n g tti&c:
K=(2/a), m^/s vd
a=[2.F^.go.p.(1-Rs)]/(K.^.ps),m/kg. (1) Trong dd: a - hg s6 gdc trong phuang trinh t h i hidn m i l quan he giua lugng n u d e Ige thu 6[i<?c (V, ml) va ty sd giua thdi gian Ipc vd lugng n u d c Ipc (t/V, s/ml), F- Didn tich Ige, m^, go - Gia t i c trpng trudng (go= 9,8 m/s^), p - Ap l y c Igc, kg/m^; R - Ty so L/R cDa d p lieu, s - Nong dp bDn, p - Khoi lugng rieng chat Idng, kg/m^, ^ - D g nhdt eua c h i t Idng, kg/ms.
Khi chl so K Ruth cdng Idn vd a Ruth cdng nhd thi vgt lieu cang dd Igc, N i u a Ruth den khodng Sang 1. Thanh phin dd hat cac miu nghien cuv
KS. N G U Y £ N T H | THANH, KS. TRAN THj VAN Tnrcmg Bfii hgc Cong nghigp Quang Ninh
10^^ thi vgt lieu Ige dd, t& 10^^ d i n 10^^ thi vat ligu cd m&c Ipe trung binh, trdn 10^^ thi vgt ligu khd Igc.
Thdng t h u d n g a d i n khoang 6 . 1 0 " m/kg thi c6 t h i x u ly bang may Ipc chdn khong. N i u Idn hon nua thi phai s u dyng may Ige gla ap Id cd lgi nhat.
1 . Npi d u n g n g h i e n ci>u
T i i n hanh danh gid kha nang Igc cDa can b i d dde Phdn xudng T u y i n than 2 - Cdng ty t u y i n than Cua Ong-Vinaeomin b i n g may Igc thf nghigm Phdng Thyc hdnh Tuyen khodng Tru'dng Dai hpe Cdng nghigp Quang Ninh. Cdng tae I l y m l u d n be d dgc d u g c thye hign vao ca 1 d c ngdy 9/11/2014 (Mau 1), ngdy 10/11/2014 (Mau 2) va ngdy 11/11/2014 ( M l u 3). Cae mdu sau khi i l y d u g e dem phdn tfch thdnh phan do hat vd n i n g dp pha ran, k i t qud phdn tfeh eho d Bang 1 va Bang 2,
Cap hat. mm +1 0,5-1 0,1-0,5
-0,074 Cfng
^ —
•- • - i&Tt^Hlli
Thu ho?ch,
%
0,63 2,33 22,13 67,23 100,00
Luy ti'ch t H ^
(-),%
100,00 99,37 97,04 67,23 ^
1 ^ ^ ^ Mf Thu hoach.
%
0,66 3,59 26,36 ._ 62.33 J
U2 " ^ Luy tich theo
(-),%
100,00 99,35 k,.95,76 . K 6 2 . 3 3
• i r Mau 3 " •
TTIU hogch,%
0,66 4,47
, . 6 P . 6 L _
Luy tfch • theo ( - ) , % "
100,00 99,34 94,87
^ 60,87 . 1
Bang 2. Ndng dg pha rSn cac m&u nghien cCeu
E
Mau 1 460,28
Mau 2 T M i u 3 438,03 I 436,64 Nhgn xet: Cdc m l u nghidn c&u cd hdm lugng d p hat - 0,5mm d trong d n be cd ddc ldn hgn 94
% va ndng do pha ran 436,64 g/1 d i n 460,28 g/1.
N h u vdy d c mdu hodn todn phu hgp Id logi vdt ligu d u g c Ige trdn may Ipc Phdng T h y c hanh Tuyen khodng Trudng Dgi hge Cdng nghidp Qudng Ninh,
T i i n hanh thf nghidm vdi cdc m i u da i l y trdn may Igc phdng thye hdnh T u y i n khoang Trudng Dgi hgc Cdng ngtiigp Quang Ninh. Qua trinh thi nghigm theo ddi mdi quan hd gi&a thdi gian Ipc vd lugng nude Igc thu d u g c , k i t thDc thi nghidm xdc djnh ehi s i Ipc va edn Ige. K i t qud thi nghidm d u g c t h i hidn d Bang 3.
T& Bdng 3 ve dd thj t h i hign mdi lidn quan giua n u d e Ige vd ty so gi&a thdi gian Igc vdi n u d c Igc ede mau thi nghiem d u o c t h i hidn trdn cae hinh H . l . H.2 va H.3.
CfiNG NGHllP MO, Sfi 1 - 2016
^]]J_
KHOA HOC VA CfiNG N G H £ MO BinggiO'a thdi 3. Moi gian loc
quan hg giira nwcfC Igc vdi nuuc loc cac mau thi
va ty so nghiem Uau% 1
V, ml 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180
t/V (s/ml)
0,6 , 1,05 1,35 1,74 2,01 2,23 2,43 2,61 2,87 3,11 3,33 3,53 3,88 4,19 4,56 4,89 5,3 6,01
Mau V, ml
• 9 ^ ^
* 2 0 30 40 50 60 70 80 90 100 110 120 130 140 160 160 170 180
s l 2
^ i
(s/mip . 0,4
0,57 1,14 1,55 1,81 2,18 2,3 2,45 2,73 2,91 3,12 3,43 3,79 4,08 4,48 4,78 5,22 5,91
Miu s l 3 ml 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180
tA/
(s/ml) 0,4 0,48 1,03 1,4 1,72 2,09 2,23 2,39 2,66 2,91 3,06 3,36 3,74 4,04 4,46 4,74 5,01 5,81
y - 0 aiBx 1-0,43 1—^
H1. Mdi lien quan g/ira thdi glan loc t(s) va ty sd giua thdi gian loc vdi dung dich Igc t/V (s/ml) mau s6 1 Dya vao hinh H.l, H.2 vd H.3 xdc ffinh dugc d i s i Igc K Rutti vdchi sd d n Ipc a Rutii d c mau ttii nghigm:
• Vdi mdu sd 1:
K=71,43ml^/s=71,43.10-''^m^/s;a=4,37.10"m/kg;
• Vdi m l u sd 2:
K=64,52 ml^/s=64,52.10-^^ m%; a=4,84.10^^ m/kg;
• Vdi m l u s i 3:
K=66,67 mfe=66,67.10-'^ m%; a=4,69.10^' m/kg.
Nhgn xet: chi so Ipc K Ruth cae m l u thi nghiem t& 64,52 m r / s d i n 71,43 ml^/s vd chl so can loc a Ruth t& 4 , 3 7 . 1 0 " m/kg d i n 4,84. 1 0 " m/kg. Ciii so d n Ipe cho ttily bun can be d dge ttiugc logi dg Ige.
Y-O, lauitl M 3 /
80 too 120 140 160 .
y=0.l 30)1-0
mJ
H. 2. Mdi lidn quan giOa thoi gian lgc t(s) vdtyso gluQ thdi glan loc vdi dung did) Igc t/V (s/n^) miu so 2 ^
0 20 40 60 80 100 120 140 160 180 200 _ H.3. Moi lien quan giira tiidi gian loc t(s) vitysd giua, g
thdi glan loc vai dung djch Igc t/V (s/ni) mau so 3 ,*#.
2. K i t lugn va kien n g h j
• Cae m l u nghien c&u d ham lugng d p hat - 0,5 mm d trong d n be d dgc Idn hon 94 % vd ning do pha ran 436,64 g/1 den 460,28 g/1 hoan toan dap
&ng duge ydu d u dau vdo cua qua trinh Ige.
• Cac m i u nghidn c&u ldy tai can be d dac Phdn x u d n g t u y i n than 2 - Cdng ty tuyen than Cua 6ng-Vinacomin ed chl so can loc a Ruth tii 4 , 3 7 . 1 0 " ip/kg den 4 , 8 4 . 1 0 " m/kg. Chi s i cdn Ipc ndy t h i y rang bun can be cd ddc thupe loai dd Ipc nen d the s& dyng may igc chan khdng hogc may Ipc dp d i k h u n u d c logi vdt lieu nay.
• Hidn nay Cdng ty Tuyen than C u a Ong dang s u dung n g u i n bDn t& 2 phan x u d n g : Phan x u d n g ^ T u y i n than 1 va Phdn x u d n g Tuyen than 2 e l p vdo Nha mdy Igc dp. Tren day tdc gia chi mdi danh gidW tinh kha Ipc eua d n be d dac phan x u d n g Tuyen than 2. Theo s i lidu tham khdo t u Cdng ty Tuyin | than C u a Ong-Vinacomin thi ndng dp can b i d ' ddc Phdn x u d n g T u y i n than 1 trong khoang | 300-350 g/1. Do do d n cd s y ddnh gid tinh kha Ipc cDa loai biin ndy.Cl
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