Thong tin khoa hpc cdng nghp md w \Mmm ciiu AP DUNG CONG NGHE ca Gion HOA KHAI THAC VIA MONG DEN DAY TRUNG BJNH, DOC THOAI DEN NGHIENG 161 MO NG6 Hfi i CONG n r i H f i N QUfiNG HfiNM At present, the[.]
Trang 1w
\Mmm ciiu AP DUNG CONG NGHE ca Gion HOA KHAI THAC
VIA MONG DEN DAY TRUNG BJNH, DOC THOAI DEN NGHIENG
161 MO NG6 Hfii CONG n r i H f i N QUfiNG HfiNM
At present, the investment project for coal mining
mechanization at Nga Hai coal mine has been verified by
Quang Hanh Coal Company and submitted to Vinacomin
The application of the coal mining mechanization at Nga Hai
area has been carried out at the longwall within the pilot
scale with the coal seams having high dip angle and
variable thickness The results from this pilot application will
be the basis for widely applying the coal mining
mechanization to the complicated conditions
TS TRycNG Dire oy
TS B A O H O N G Q U A N G
ThS OINH V A N CyOfNG
Vien Khoa hoc Cdng nghe Md - Vinacomin
ThS BUI DiNH THANH ThS NGUYEN HAI TRUNG
KS NGUYEN NGQC QUYNH
Cong ty than Quang Hanh - TKV Bien tap: TS Trwong DCrc Dw
Khoang sang than Nga Hai do Cfing ty than
Quang Hanh quan ly duge x l p vdo nhfim mo
phirc tpp loai ill, gom 35 via than, trong dfi 30
via cfi gid trj cfing nghipp Phin trir lugng tir
mire -50 d i n 16 via ve ca ban da dugc khai thdc
g i n hit Hipn nay, Cong ty dang tiln hanh dao
lfi chuin bi vd khai thdc phin trCr lugng mirc
-50/-300 theo thilt k l ky thugt "Dy an khai thde
xuing sau dual mirc -50 mo than Nga Hai" do
Cfing ty Co p h i n Tu v i n O l u t u Mo vd Cfing
nghipp lap So lugng via than dugc huy dOng
vao dy an gom 10 via (via 16, 15, 14,13, 11,10,
7, 6,6a, 5), vo'i t i n g trir lugng khoang 47,9 tripu
t i n Trong dfi, trij- lugng t i n g -50 -^ -175 khodng
22,6 tripu t i n dd hodn thanh cfing tdc khai thfing
vd dang dugc khai thdc dam bao duy tri san
lugng mo d i n nam 2027 Phin tris lugng ting
-175 ^ -300 khoang 25,3 tnpu tan se dugc khai
thfing huy dOng vdo khai thdc giai dogn sau nam
2027, khi da k i t thuc cfing tdc khoan tham dfi bo
sung d l nang cao mirc dp tin cgy eiia tdi lieu dja
chit
Danh gia cho thiy, trong tong so 22,6 tripu
t i n tru lugng cua t i n g -50/-175 neu trdn, trir
lugng cdc via than mong den day tnjng binh,
thoai d i n nghieng khoang 15,8 tneu tan, ehiem
tttyi 70% ting tru lugng Hipn tgi, d l khai thae d i i
tugng via ndy, Cong ty than Quang Hanh chu
y l u dp dyng cong nghp khai thac cpt ddi theo
phuang, khiu than bang khoan n l min, ching
giu lfi chg bing cpt thuy lyc dan - xd kho'p, vd
m|t s i vj tri bing gid thuy lyc di dpng Thye t l
dp dyng cac logi hinh cfing nghd ndy tgi Cong ty cho k i t qua nhu sau: cfing suit va nang suit khai thae ehi dat khoang 70 ^ 90 ngdn tIn/nam, 2,2-^ 3,5 tin/eong d i i vo'i cdc lfi chg thiiy lye dan, ttr 80 ^ 100 ngdn tIn/nam, 3,0 -^ 4,0 tin/cfing d i i vfi-i cdc lfi chg gia thuy lye Theo
k l hoach cua Cfing ty than Quang Hanh da dugc Tgp dodn phe duypt, san lugng than khai thdc h i m 16 sd dgt 1,0 tripu tan nam 2014 va duy tri 0' mire 1,5 tripu t i n k l tir nam 2015 Vd'i hipn
trgng cfing nghp dang dp dung, 6^ dam bao k l
hogch gia tang vd duy tri san lugng, Cfing ty ehi cfi t h i thue hipn dugc bdng cdeh mo' thdm dipn khai thac md'i (tang tir 10 lfi chg nam 2013 len
12 ^ 13 lfi chg ndm 2014, thgm ehi, nhieu han
vdo ndm 2015), dilu ndy dong nghTa vfii vipe phai tang nhanh s i lugng cfing nhdn tuang irng theo ty le tang san lugng mo Trong khi dfi, v i n
de giD' vd tuyen dung mo'i lao dpng him lfi dang
la bai toan hit sue khfi khan d i i vfi'i Cong ty than Quang Hanh nfii rieng, Ngdnh than nfii ehung
Dh giai quylt nhirng khfi khan trdn vd thye
hipn chu truang eiia Tap dodn Cfing nghipp Than - Khoang san Vipt Nam v l phat then ben vCrng gan lien vfi'i bao vp mfii trufi-ng theo huang doi mfi-i cfing nghp, triln khai irng dyng cfing nghp tidn tiln trong cac cfing dogn san xuit nham tang nhanh san lugng khai thde him lfi, giam nhan lyc khai thac, tang nang suit lao dpng, giam ton that tai nguyen, dong thfi'i ndng eao mipc dp an toan vd cai thipn dieu kipn lao dpng, Cfing ty than Quang Hanh da d l nghj Vipn
Trang 2w
Khoa hpc Cong nghS Mo cung phai hop nghien
cilu aanh gia kha nang va lap dLK an dau tir ap
dung cong nghe cc gioi hoa khai thac vfa mong
den day trung binh phii hop vd'i dieu ki#n cac via
than tai khoSng sang Nga Hai do Cong ty quan
ly Ket qua danh gia chi tiSt dac dilm diSu kien
aia chat cac via than tang -50/-175 khu mo Nga
Hai cho thay, tru lu'p'ng cac khu vyc thoa man
yeu cau ap dung cc gioi hoa khai thac la 2.324,6
ngan tan (tap tnjng tai via 6, via 7, via 15 va via
16) Phan Ion tru lu'p'ng tap trung trong miSn
chi^u day 1,4 + 2,5m, chiem to'i 72,2% t6ng trii'
lupng CO gidi hoa (1.678,8 ngan t§in), phan con
lai thupc mien chieu day tir tren 2,5 + 3,5m,
chiem 27,8% (636,8 ngan tan) Theo goc d6c,
tru' lyong t|ip trung trong mien duoi 20°, chiem
67,2% (1561,1 ngan tan), trir lupng thupc mien
goc doc tir tren 20° + 35° la 32,8% (763,5 ngan
tan) Chi tiSt CO cau trir lupng cac khu vuc via
than CO kha nang co gioi hoa tai mo Nga Hai t h i
hien trong bang 1
Hien nay, de co gioi hoa khai thac cac via
than CO dilu kien nhu tren, c6 t h i ap dung mpt
so so dp ccng nghe nhu (1) So de ccng nghe
khai thac co giai hoa, chong giu' 16 cho bang dan
t u hanh, khiu than bSng may bao; (2) So do
cong nghe khai thac co gioi hoa dong bo khau
than bing may combai, chdng giu-16 chp bang
dan ching tu hanh; va (3) So do cong nghp khai
thac tu dgng hoa, khau than bang may khau k i t
hop dan tu hanh, cac cong viec trong qua trinh
khai thac dypc thuc hien t u i n t y theo c h l dp dat
san cho cac may tinh dieu khien
Trong cac so d l cong nghp khai thac co gioi
hoa neu tren, so do so 1 thyong chi ap dung phii
hop trong dieu kien chieu day via d i n 2,0m, yeu
cau mirc dp I n dinh v l chieu day via khat khe,
ty le va do kien co ciia da kep trong via phai nho,
cong suit khai thac thap hon so vo'i hai so do
cdn lai [1,3,6] Tuang t u nhy so do so 1, so do
so 3 cung doi hoi mii'c dp b i l n dpng via than rat khat khe, ngoai ra, no cdn yeu c i u cao v l trinh
dp to chirc va b l day kinh nghiem cua can bp, cong nhan tham gia van hanh 16 cha, chi phi dau
t u ban d i u 16'n, va thye t l cong ngh$ nSy cung chi mai dyac ap dung thir nghiem tai mpt so
nyac phat triln Sa 3b s8 2 co yeu cau v l trinh
dp tilp nh|n cong nghp cua ngyai thp 6' mii'c dp trung binh, chi phi d i u t y ban d i u khong qua 16'n, mirc dp biln dpng v l chilu day, g6c die via
than tir trung binh d i n I n dinh Can c(t vao d|c
dilm dilu kien cac khu vyc via than c6 kha nang
ca gioi hoa, trinh dp ky thuat ciing nhy kha nang
t i l p nhan cong nghp ciia nguoi tho trong thpi dilm hien tai, Vien Khoa hpc Cpng nghe Mo da lua chpn cong nghe khai thac co gidi hda ding
bo khiu than bang may combai, chong giu 16 cha bang dan ching t y hanh (sa do so 2) de ap dung chp cac khu vyc via than d y kiln ap dung
ca giai hca trong d i l u kien Cong ty than Quang Hanh Tuy nhien, cac thong s i chinh cua so do cdng nghe nhu chilu dai 16 cho thep huong die, chilu dai theo phypng khu vuc khai thac, dong
bp thilt b| ca gio'i hoa, phai dupc lua chpn that ky lud'ng de vira dap irng cac yeu cau v l ky thuit, vira dam bao hipu qua kinh t l cua cong tac dau t y trong thai dilm hipn nay Chilu dai 16 cho d y a c chpn phu thupc vao
dilu kien dia chit mo 0 dilu kien dia chat via
phirc tgp, vipc ap dung khai thac ca gioi hoa chi
nen ap dung cr dang gyang 16 cho ngan Tai cac
mo Nam M l u va Khe Cham, chilu dai 16 chp co giai hoa khoang 80 + 120m la phii hpp voi dilu kien d|a chat ky thuat cac mo va dam bao thuan lpi trong cong tac to chirc san xuit 16 chp Dieu kipn dia chit ciia khu mo Nga Hai - Cong ty than Quang Hanh phirc tgp (thupc nhom mo phirc tap ioai 111), dac bipt nhilu khu vyc ap dung co goc doc Ion tir tren 20 + 35°, nen chilu dai 16 chp co gio'i hda dupc chpn la 80m, chilu dai theo
Bdng 1 Tdng hap trCr luang c6 kha nang ca glai hda tai tdng -50/-175 md Ngd Hai
Gdc doc via
(dd)
£20
20,1-35
T i n g
Ty 10 (%)
Tru' tircmg huy dgng (ngdn tan) Chidu ddy via (mdt)
1,41 + 2 , 5
1 327,8(57,1%)
351,1 (16,1%)
1 678,8
72,2
2,61 + 2 , 8
0 115,9(5%) 116,9 6,0
2,81 + 3 , 2
0 123,9 (6,3%) 123,9 5,3
3,21 + 3 , 5 233,4(10,0%) 172,5(7,4%) 405,9 17,6
Tong
1 661,10 763,5 2.324,6
100
Ty l« (%) 67,2 32,8
100
Trang 3phuang khu vye khai thac dugc lua chpn theo
kinh nghipm, toi thilu bang 2,5 l i n chieu dai lfi
chg theo hufi'ng d i e
Theo kinh nghipm thilt k l cua cac dan vj ehl
tgc dan chong, de phu hgp vfi'i khu vuc via than
dp dgng, chieu cao nho nhit (min) cua ddn phai
thip han toi thilu 0,2m so vai chilu ddy via nho
nhit, chilu cao 16'n nhit (max) cua ddn phai Ifi'n
han t i i thilu 0,1m so vfi'i ehieu ddy via 16'n nhit
trong pham vi do Theo ea eiu trij lugng cdc khu
vue via cfi kha nang ea giai hfia trinh bay tai
bang 1, 6e khai thdc mfit l i n h i t chieu day via tir
1,4 ^ 3,5m, ddn chong phai cfi chieu eao min ^
max la 1,2 -5- 3,6m, theo dfi hdnh trinh Ifi'n nhit
cua piston cpt ching la 2,4m Qua tham khao
dac tinh ky thugt ciia mpt so loai ddn ching pho
biln vd trao doi vfi'i cac ehuyen gia ea khi cua
nufi'c ngodi, thfi'i diem hipn nay khfing kha thi ve
ky thuat vd kinh t l d l c h l tao dugc logi ddn
chong thoa man yeu eau tren Do dfi, chilu cao
nho nhit cua dan dugc c l djnh la 1,2m, chieu
cao lan nhit cua dan sd dugc lya chpn sao cho
kha nang Idm vipc cua no phii hgp toi da vfi'i dieu
kipn cdc khu vyc dp dyng ca gio'i hoa Cu t h i
nhu sau [5,6]:
- N l u phgm vi ehieu day via lya chpn dan
ching Id 1,4 -?- 2,5m (1.678,8 ngdn tan, chilm
72,2% tong tru- lugng ca gifi'i hfia), chilu cao
tuang irng cua ddn se la 1,2 -^ 2,6m, irng vfi'i
miln ching gitr max ^ min 1,4m Day la mien
chong gii> khd pho bien cua cac thilt bj ddn
chong dugc san xuit tgi Trung Quic vd mot s i
nufi'c khdc tren the gio'i
- Neu phgm vi chieu ddy via lya chpn dan
ching la 1,4 -^ 2,8m, khi dfi mire dp phii hgp cua
ddn ching se mo' rpng them 6w(;fc 5% ting tru
lugng ca giai hoa (115,9 ngdn tin), ndng ting
trO lugng phu hgp eua thilt bj Idn 1.794,7 ngan
t i n Trong trufi'ng hgp ndy, ehieu cao tuang irng
cua ddn se Id 1,2 - 2,9 (3,0)m, tuang irng vfi'i
miln ching giCr max H- min 1,8m Theo phan tich
eiia cac chuyen gia ca khi, vfi'i mien ching giO'
ndy, pitston cua cpt dan chong da den gifi'i han
hdnh trinh, nen se ddn d i n mpt s i han ehl: (1)
Du&ng cong chiu lyc cua cdc tay bien giam di
dang k l mirc dp hgp ly; (2) Vi pitston ciia cot
ddn ching da den giai hgn hanh trinh, goc
nghieng cua cpt ching cOng tang Idn, dan den
hipu suit ching giu se bj giam, nen lyc can lam vipe ciia dan phai tang, tir dfi lam tang trpng lugng dan (vi dy, dan ZY3000-12/26 co khii lugng 11 t i n , trong khi dan ZY3400-12.5/30 c6 khii lugng khoang 14 tan [5, 6]); (3) Vi hdnh trinh piston ciia cot ching tuang dfii lan, ndn xd eiia ddn chong va bat chan cpt ching phai mong, do vdy vat lieu gia cfing phai cfi sire ben cao, d i n d i n gia thanh san xuit phai tang len; (4) Lyc can lam vipc cua dan tang, dd d l phfing hipn tugng "truang xi lanh" trong qud trinh su dyng, xi lanh cua cpt phai diing vat lieu cfi sire
b i n cao han 6e gia cfing, d i n d i n tang gia
thdnh
- Neu pham vi chilu ddy via lua chpn ddn chong la 1,4 ^ trdn 2,8m, tuang irng vai mien chilu cao cua ddn tir 1,2 H- tren 3,0m Nhu da ndu 0' trdn, sd khfing khd thi v l ky thugt vd kinh
t l d l lya chpn duac loai dan chong phti hgp cho
d i i tugng via nay
Tir cac phan tich trdn, trong phgm vi cdc khu vye via cfi kha ndng ca gidi hfia tai mo than Nga Hai, Vipn Khoa hpc Cfing nghp Mo da ehpn mien chieu ddy via mang tinh dai dien tCr 1,4 -^ 2,5m (chiem 72,2% tfing tru lugng) d l lya ehpn dan ching phu hgp, cac mien chilu ddy via cfin Igi
se chip nhgn t i n thit mpt phin than fi' nfic hogc
n i n 16 chg trong qud trinh khiu
Kinh nghidm cho t h i y trong cung mdt dilu kipn sir dung, cac loai dan chong cfi xuit sir tCr cae nufi'c Dong Au noi rieng, cdc nufi'c chau Au nfii chung thuo'ng cfi chit lugng tot han, tuy nhien, trpng lugng vd gia thanh Igi cao han so vfi'i ddn ching do Trung Quic san xuit Trong dieu kien quy mo cong suat xay dyng cho eae 16 chg ca gifi'i hfia tai Cong ty than Quang Hanh khfing Ifin (du kiln khoang 180.000 tan/nam), chat lugng than nguydn khai o" mirc dp trung binh, d l ding th6'i thue hipn chu truang ca gi6'i h6a va dam bao hidu qua cua cong tdc d i u tu, cdc bdn thing nhit su dyng ddn ching tuang duang vfi'i loai dan ZY3000-12/26 do Trung Quoc san xuit
Khac vfi'i logi dan ching tu hanh da dp dung trufi-c day tai Cfing ty than Khe Cham, ddn chong ZY3000-12/26 dugc c h l tgo d§c bipt vd
b l sung mpt s i chi tilt k i t c i u d l cfi t h i Idm vipe
I n dinh trong dieu kipn gfic d i e 16 chg len 16*1
Trang 435°, gdc die len xuing thee hypng khau len td'i
±15°, eg the: (1) Cac dan chong trong 16 chp
dupc lien k i t vd'i nhau bang he thing xi lanh
ching troi (lien k i t d l cac dan ching), ching lat
(lien k i t xa cac dan ching), va he thing xich,
piston lien k i t dan chong va mang cao de ching
troi mang; (2) Be cua d l dan dypc bo sung kich
chinh be dan phia ben hdng va kich thang bang
phia pha hoa d l tang tinh on dinh cua dan trong
dilu kien goc doc Ion Ngoai ra, de dan cung
dyac trang bi kich nang d l xy ly ching lun trong
truang hap dan ching bi liin xuing n i n 16 cha;
(3) T i m da guang dypc cai tien thanh dang thd
thut thay cho hinh thirc t i m lat kilu ban l l de
tang tinh chu dpng trong viec do vach 16 chp
trong qua trinh khiu guang, d i n g thai tang dien
tich sir dung khong gian phia trpng Idng dan Chi
tilt xem tai hinh 1, bang 2
Ciing vd'i dan ching, may khau va mang cao
la nhirng thilt bi chinh trong dong bp thilt bi le
chp ca giai hda Trong do, may khiu dyac lya
chpn phai dam bap phii hap vd'i dan ching, quy
mo cong suat va dac d i l m d i l u kien dja c h i t
-ky thugt mo khu vyc ap dung, nhy chilu cao khai thac, dp kien c l ciia than va da kep trong via (neu co), do d i e 16 cha theo phyong va theo hyang doc Theo hinh thii'c keo dat, may khiu duac chia thanh hai loai la keo d i t bang dien va keo dat bang thuy lyc Xet v l mat ky thuat don thuin, may khau keo dat bang dien co nhilu iru dilm hon so vol keo dat bang thiiy lyc nhu;,(1) Nang suit cao han; (2) Co the dilu khiln tir xa, tren may trang bi man hinh hiln thi mot s i th6ng
s i ky thuit ciia may trong qua trinh lam vipc; (3)
Co tram d i l u khiln tia hong ngoai de dieu khien
va lap trinh mpt s i thong s i ky thuat don glan cho may Tuy nhien, no cung ton tgi mpt s6 nhyoc d i l m so vai may khau keo dat bang thiiy lyc la: (1) P h i n d i l u khiln dien phii'c tap, yeu
c i u tha sira chira phai co trinh dp ky thuat cao; (2) Khi lam viec trong 16 chp c6 dO die ldn hon 15° c i n phai co bp khing c h l bien tan d l phanh
H6 thdng chdng Idt ddn ZY014-70 Hd thdng chdng trdi mdng cdo Ddn chdng ZY3000-12/26 vd chdng trdi dan ZY014-71 ZY014-72 Hlnh 1 Ddn chdng ZY3000-12/2e vd cdc kit ciu lidn kit chdng trdi, dd ddn vd mdng cdo Bang 2 Bde tinh ky thudt ciia dan chdng ZY3000/12f26
TT
1
2
3
4
6
6
7
8
9
10
11
12
Thong so ky thuat
Hinh thirc d^n chong
Chieu cao dan chdng
Chieu rdng dan chdng
Khoang each tam hai dan chdng
Bird'c di chuyen dan
0 0 doc 16 chp cho phep
Gdc doc cho phep theo hu'dng khau
Ap lyc chong 6a Ifi'n nhat
Luc chdng ban d i u
Cu'dng dd chong giu'
Ap lu'c len de d^n chong
Trpng lu'png ddn chong
0O77 vj
Dang che c h i n
mm
mm
mm
mm
do
dd
kN
kN MPa MPa tan
Khoi Iwgmg
1200 + 2600
1430 + 1600
1500
600 S36°
±16°
3000
2616 0,6 + 0,53 1,16 -11
Ghi chO
P = 36,1 mPa
P = 31,5 mPa
Trang 5ham, d l ph6ng troi may (may khiu kep dat bing
thuy lyc thi dya vao m l men lyc cua m6 to nSn
t y ban than co t h i phanh ham); (3) Trong cimg
mpt dilu kien cong suit, gia thanh dat gap 2 l i n
so vdri mdy khiu keo dat bing thuy lyc; (4) Xet
v l dilu kipn dac thil thye t l moi tryd'ng ham 16
Vipt Nam noi chung, Cong ty than Quang Hanh
ndi rigng, do dp I m khong khi cao, nen khi sy
dgng may khiu keo dat b i n g di$n, cac block
mgch cua phin dilu khiln d i bj sy co (do dd, ke
ca trong cac ca khong san xuit v i n phai ddng
di$n de cho thilt bi t y s l y va sir dung them hpt
ching am) Tren ca so dd, Vien Khoa hpc Cong
ngh0 Mo da lya chon loai may khiu keo dat
bang thuy lyc tyang dyang loai MG132/320-W
do Trung Quic san xuit Dong bp vai Ipai dan
chong va may khiu lya chpn, d l xuit sir dung
mang cao tyang dyang loai SGZ630/220 Chi
tilt hinh anh va d i e tinh ky thuat ciia may khau,
mang c i o xem hinh 2, 3 va cac bang 3,4 Sa d l
cong nghp khai thac 16 cha vol cac thong s i va
thilt bi d l xuit t h i hien trong hinh 3
M i : i 3 z / 3 2 a - W D | I R i R a «
Bdng 3 Mdt sd thdng sd kjr thudt ChO yeu ciJa mdy khiu than MG132/320-W
Hinh 2 Mdy khiu MG132/320 - W
Hinh 3 Mdng cdo SGZ630/220
Tren ca so' c i c khu vyc via co kha ning co
gi6i hda v l k l hogch san xuat cua Cong ty than
Quang Hanh, Dy I n d i u t y cong nghe, thilt bi
ca gio'i h6a do Vign Khoa hpc C6ng nghp Mo
thye hipn d l lya chpn In chp TT-6-1 mirc -90/
-120 via 6 khu Trung Tam I I vj tri I p dgng d i u
tien Khu vyc 16 cha c6 chilu d i y via tmng binh
2,5 m, gdc d i e trung binh 20°, dp kidn c l cua
than f = 1 + 2, chilu d i i in chp trung binh theo
hy*ng die 80m, chilu dai theo phyang khu khai
thic 530m, d l vIch tryc tilp thupc lopi I n dinh
TT
1
2
3
4
6
7
8
9
10
11
12
Thong so ky thudt
Chidu cao k h i u
Op kien c l ciia than ChiSu rdng dai k h i u Gdc d i e lam viec Du'O'ng kinh tang khau Lyc di chuyen Toe dp di chuyen
Dort vj
m
f
m
dd
mm
KN m/phiit
K/|6/ lifong
1,4 + 2,7
£4 0,6
<35»
1400
300
0 + 5,5 Phu'ong thd'c di chuyen: ThOy lire, di chuydn
b i n g bdnh rang khdng xich Cdng suat mdy Nang s u i t t h i l t k l Trong lu'png may
kW T/h
T i n
319
500
21
Biing 4 Mdt s6 thdng s6 ky thu$t chu yeu cQa mSng c^o SGZ630/220
77
1
2
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6
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Thong so ky thuat
Chieu dai Kich thu'dc cau mdng
N3ng s u i t vdn tai
Too dd xich
D o n vi
m
T/h m/s
K/JO/ Iwgmg
82 1600x690x252
460 0,9 Quy cdeh b l Irl xich: 02 xich giCra
Cdng s u i t vdn tai
Cdng s u i t ddng CO
T/h
kW
450
220
BSng 5 Mgt s6 chf tiSu kinh ti kp thu$t chO yiu
vS hi$u quS cua cong ngh^
n
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Ten chi tieu
Cdng suat khai thde trung binh 16 chp
So cdng nhan/ ngdy- ddm NSng s u i t lao ddng Ton that than edng ngh$
Tong mire dau tu"
Gid tn hipn tpi thye (NPV
- hd so c h i i t k h i u r=12%)
T y t e l 5 i n 6 i t a i ( I R R ) Lpi nhuan rdng (Pn) Thdi gian hoan von (T)
Dem vi
t i n ngydi tin/cdng
%
t r d
t r d
%
t r d nSm
Soluvmg
180.000
69 12,5 16,5 157.329,5
17.655
15,92
122 136 4,8
trung binh, da tn^ thupc logi ben vu'ng trung binh, ting tru* lugng huy dpng 16 chg Id 167,5 ngdn
t i n K i t qua tinh toan cac ehi tieu kinh t l - ky thugt chu y l u vd hipu qua kinh t l cug dp- dn cho thiy, vipc d i u tu dp dyng cong nghp cc gifi'i hoa tgi C6ng ty than Quang Hanh se mang Igi hipu qua t i t cho den vj, eong suit khai thac trung
Trang 6L6 dgc via thong gio* ^ C|tTl£_f^xS khdp
MATCATA-A L6ao=.aihAngji6
Cot TLD t xa khiirp - J | £ ? ^ 3
cofrrfi-H/n/j 3 Sadd cdng nghe
binh dat 180.000 tan/nim, tang tir 1,8 + 2,6 lan,
nang suit lao dpng dat 12,5 tIn/cong, t i n g tu'
3,1 + 5,7 so vai cdng nghe hien dang I p dung
tai md C i c chi tieu hieu qua kinh t l cung rit kha
quan, g i l tri hien tai thye dat 17.655 trieu ddng,
ty le 111 noi tai 15,92%, lai nhuan rdng 122.135
trieu dong, thai glan hoin vdn khoing 4,8 nam
Chi tilt the hien trong bang 5
Hien tai, d y an d i u ty ca giai hca khai t h i c
tai md N g i Hai da duac Cong ty than Quang
Hanh thim dmh va trinh Tap doan phe duyet
Ap dung cdng nghp ca gidi hoa khai thic tai
khu vyc N g i Hai I I thir nghiem trong dilu kipn
id cho cd gdc doc cao v l khoang thay doi chilu
day via ldn Kit qua I p dung ccng nghe cdn a
phia truac, nhyng chae chan cdng trinh I I sy t h i
hien nd lyc trong vipc day manh cp gio'i hda khai
thac than v l II ca sa kmh nghiem de ma rdng
I p dgng cdng nghe ca gldi hda khai thac a dilu
kien phirc tap./
khai thdc id cha ca gidi hda
Tai lieu tham khao:
1 TS Tryong DLFC Dy "Nghidn CCPU lua chon
cdng nghe ca gidi hda khai thdc cdc via than mdng (<2.0m) ddc thoai din nghidng vCing than Qudng Ninh" Vidn Khoa hpc Cdng ngh0 Md - Vinacomin,
Nam 2010
2 TS Tran Xuan Hda "Nghidn ci>u ndng cao mOc
do ca gial hda vd hien dai hda khai thdc than him Id
vd dinh huang (rng dung cho cdc md than him Id vdng Qudng Ninh" Vidn Khoa hpc Cdng nghd Md •
Vinacomin Nam 2011
3 Lidn hiep cac Hdi khoa hpe vd ky thuSt Vi6t
Nam Cim nang cdng nghd vd thiit bi md, Quyin II
-Nam 2008
4 Bdo cdo khdi luong md cdc ndm tir 2010*2013
vd ki hoach giai doan 2014 * 2020 Cdng ty than
Quang Hanh
5 Hd sa dir dn diu tu thiit bi ca gldi hda khai thic
tai md Nga Hai Cdng ty than Quang Han/i Vl$n Khoa
hpc Cdng nghe Md - Vinacomin Ndm 2014
6 Tdi llSu hypng din vd catalog mdt s i I091 ttil^t
bi CO gidi hda khai thdc cua nydc ngoii