KHOA HOC - CONG NGHE 3>
N G H I E N C U U LLfA C H O N C O N G N G H E KHAI T H A C T H A N LO C H O KHU T R U N G T A M G I E N G V A N G
DANH D e O A P LfNG SAN L U O N G 2,5 TRIEU T A N / N A M
Tom t5t: N h l m d S m b a o y e u c a u ve luong than khai thac ham 16, dong i nang cao mfle do an toan vS cai thien c kien cOa ngfldi lao dong khi khai thac n cang xuong sau, can thiet phai trien I ap dung co gidi hoa cac khau khau tf- ctiong g i f l 16 cho, van tSi va dao 16 [ hpp vdi dieu kien dia ctiat cac m6.Tr(
do viec trien khai ap dung cong nghe £ thac hop ly vao khu Trung tam gieng Vi Danh de dap ufng yeu cau tong t h ^ v^;
luong khai thac toan Cong t y trong nhi nam tdi la can thiet va quan trpng.Da;
yeu cau tien quyet 6,hxT\ bSo phat tri^n I:
vumg va on ^ n h ciJa Cdng ty cunffr nganh khai thac than ham 16 Vi^Nt
TS. VO MANH H 0 N G ; T H S . O O A N QUANG THE; T H S . N G U Y I N T.T Hl/dNG Trudng DH cong nghiep Quang Ninh
l . M d d a u
Khai uudng khu Id gieng Vdng danh vdi ufl Iupng cdng nghiep 43,3 trigu tin, cdng tac chuan bi nhu sau: Khai thdng bang cap gilng nghieng tfl mfle -I-122 den -175 dya tren cde dflt gay kiln tao chia khai uudng thanh 4 khu khai thac: Khu I;
Khu II; Khu III; Khu IV
Tfl nam 2008 Vien KHCN md da phdi hpp vfli Cdng ty than Vang Danh dp dung cdng nghe khai tfidc than bang mdy khau MB-12-2V2P/R450E kit hpp vdi dan chdng ty hdnh VINAALTA, khd nang chju tai Pmax= 228 tan tai Id chp: II- 8-2, thupc via 8 l ^ u II gieng Vdng Danh (Mfle cao khai thac + 6 0 - : - + 1 0 5 ; Chieu ddi Id chp: 122 m; Gdc ddc Id chp: W 0 -:-160;
Chilu ddy via: trung binh 7,0 m ) , tuy nhign trong qua trinh khai thdc thi cong nghe ndy cdn mdt sd tdn tai:
- Dan Iam viec chua dn djnh, cdn hi hdng hdc, niit vd, gly edc gdi do, tru ndi xd chfnh va edc tay bign phai sita chira, viec tdng sfla chira 30 ddn cu dupc tfln hdnh tft 3-:-11 thdng 10 nam 2008 din nay Id chp co bdn sdn xult on djnh.
- Mec can chinh, sfla chira he thdng thilt bj, dien, bang tai Id + 5 0 cdn xdy ra nhieu vu sfl cd Ifln, hdng hde tfiilt hi Idm dch tac sdn xult. Dp am h i m Id eao, cde can bang tdi lam viec khong dn djnh, dp ehfnh xdc thip gdp p h i n lam thap san Iupng do do d i m chdm. Cde thilt bj nhu ddng co may nghien, ddng eo di chuyen may khiu vin cdn su cd phai dflng san xult vdi thdi gian keo dai.
Vi vdy de ddp ifng san Iupng khu Trung tam gilng Vang Danh dat 2,5 trieu lan/ndm, ta Iln lupt huy dpng titng Id ehp hoac dong thdi nhieu Id chp tuy theo sdn lirong khai thdc cua ting tfl -1-0 -:- + 1 0 5 . Theo sd lieu khai thac ciia tang tfl -1-0 -:- + ] 05 dant! ' i ' W 1.750.000 -:-1.800 OW) tin, nhu vdy cin
phdi huy dpng sd lupng Id chp sao cho dat san lupng 6O0.(
-:- 700.000 t i n Id se dam bdo sdn Iflpi^ thilt k l . Tdc g i x u l t d u a l d c h p l - 8 - 1 v i a 8 k h u I ( a = 9 o - l l o , m v = 5 . 5 cua tang -1-0 -:- -175 vdo san xult v ^ cdng tdc ddo 16 chi hi the hien trong (hinh I ) . De khai thac d ^ dupc san lui tfl 600.000 -:- 700.000 tin, thi cln phdi lya chpn c d i ^ a khai thac va thiet bj van tai hpp ly n h i t mdi d ^ flngdieii|
san Iupng tren. I
Bnh 1. Phamg dn khai thong chuan bi Id cha 1-8-1 2. Lya c h p n cdng n ^ $ k h a i t h a c va t h i l t hi vdn tai i bao d a p dag s a n Ifltnig yeu cau
2.1. Hien trqng mot so cong nghe khdu chong Id chg A
dp dung , Mdt sd cong nghe khau chdng Id chp da va dang ap d ^ g
qua tai Cdng ty cd phan tfian Vang Danh gdm cde e&ig H chong gifl sau:
2.1.1- Ld chg cagidi boa dong bd, chong bdng ddn fl bdnh • khdu than bdng ComBai.
W\:\\^ i.Li. - lET N^M (so !:-!^125 thang 9+10/2015)
« KHOA HOC-CdNG NGHE
li He tfldng khai thae Id ehp eo g i ^ hod ddng bd (Cd tfiu hdi S tfian ndc), apdungtai eacvj Ui viacdgdc ddc a 3 5 0 - ' , chilu I' day via > 3m, d i t da vach vd try via tfl ben vimg Uung binh ) trd len.
^ Cdng tdc khau tfian dupc tfiyc hien bang to hpp thiet bi; May Dl khiu kit h ^ vdi gidn h ; hanh va mdng cao van tdi than. May
^1 Idilu than vdi tdc dp khau tfl 0-6,8 m/ph. Chieu cao khiu cua ijimay tfl l,6-3,5m va cd thu hdi than ndc vdi chilu rpng dai Sfkhlu 0,63m. Tien dp tiln guong moi chu ky phy thupc vdo
^chilu ddi Id ehp, va dflpc thyc hien trong 3 ea san xult. Yiec
"^'di chuyen gian chdng, mang cao dupe thuc hien bang co gidi '- hod phii hpp vdi tdc dp khiu than cua mdy khiu. Cdng nghe nay da dp dyng tai chp 11-8-2 via. 8 khu H gilng Vang Danh.
j ^ . 1.2- i d chg chdng gM thuy luc di dpng - khdu than bang khoan no min.
Cong tac k h i u than dupc thyc hien bang khoan nd min.
Khoan Id min dung may khoan dien cam tay Thudc nd dung loai thudc nd an toan nhu tuong Id than 2, kip nd dung kfp
%ign vd mdy nd min trong ham Id. Tiln dp moi chu ky Id 0,8 '^\n theo phuong vd dupc thue hien trong 3 ca. Chdng gifl trong '•H chp dilng gid tfiuy Iuc XDY-1T2/LY kit hpp cpt tfiuy lye don
;iliDZ-22 chdng diu vd chdn Id chp. Sau khi khiu het chieu ddi iKtd chp vd thu hdi than ha t r i n xong tiln hdnh ha nen vd lidthuyen mang cao sang ludng m ^ , tilp We sang gid vdi ludng
|il|fdilu mdi. Cong nghe nay dang dp dung tai ehp II-6-2a; II-6- S via 6 khu II gieng Vang Danh.
^ . 1.3- Ld chg chong gid TLDD dang khung - khdu than bdng
^boannomin.
f'Idng tae k h i u than dupc thuc hien bang khoan nd min.
fihoan Id min ddng mdy khoan dien d m . Thudc nd dung loai
^ u d e nd an toan nhu tflOng Id than 2, ldp nd dung kip dien Z^a. mdy nd min trong h i m Id. Tiln dp mdi ehu ky la 0,8 m . ^eo phuong va dupc tfiyc hien Uong 3 ea. Chdng ^ 0 trong Id g h p dung gid thuy lyc ZH1600/16/24Z kit hpp cdt thuy lye
^ jOn DZ-22 chdng dau vd chdn Id ehp. Sau khi k h i u h i t chilu
;' di Id chp, thu hdi than ha tran xong, tfen hanh ha nen va
^ u y e n mdng cdo sang ludng mft, sau dd chuyen gid, k h i u fS^idng mdi. Cdng nghg ndy dang ap dung tai chp II-7-2; II-7-4
^ i a 7 khu II; ehp II-8-3 via 8 khu II; chp III-8a-l via 8a khu
^'"ll tfiupc khu gilng Vdng Danh.
^^.2. Lua ebon cdng ngh$ chong giU Id chg 1-8-1 id td dia chdt kbuvUcchgI-8-1
i^H chp 1-8-1 via 8 khu I gilng Vang Danh gidi ban tfieo phuong t thupng tfldng gid van chuyin -1-0 -:- -175 den sdt phay F2 ,g^|6 chieu dai tfieo phuong L = 550m, gidi han tfieo hudng ddc j^, J Id dpc via van tdi mfle-25 Ign 16 dpc ™ tfldng gid mfle-10.
'p sau khai tfidc riit mat dia hinh xudng ^ n rudng md chuan J khai tfidc tinh trung binh h = 270m. Tfl mfle + 0 len dia inh via 8 da dflpc khai tfidc. Ma than cd d u tao dn djnh, gdc
ddc Uung binh cua via: a = 9o - l l o (Uung binh lOo), ehilu ddy m tfian trung binh: mV = 5,5m (gin phay F2 chilu ddy via mdng d i n cdn mV= 4m-5m. Dp cimg cua than: f = 2 - 3, ty Upng tfian: a = 1,7 T/m3. Ngoai ra Wiu vyc Id chp khdng cd cac dflt gay Idn nhd vd udn nep.
Da vdeh uyc tiep: La da set kit phan Idp mdng W 0,05 - 0,2m, ehieu ddy thay ddi tfl 0,5 - 0,8m. Dd vach co ban: la da bdt Iret va dd cdt kit la chu yeu, da cat kit phdn Idp til 0,2 - 0,4m, chieu ddy thay ddi tfl 15 - 25m.
Can cfl vdo cae dieu klen dja chat cu the cua via than ehp I - 8 - 1 gieng Vdng Danh ta thiy khi dp dung tihig cong nghe chdng gifl vdo cung dieu kign dia chat via tai Id chp I - 8 - 1 thi cdng nghe co gidi hda ddng bp. Id chp chdng g u bang dan chdng ty hanh, khiu than bang mdy combai, dilu khien da vach bdng phd hda todn p h i n Id cdng ngh$ khd tfii nhit. Vfli viec sfl sung mdy Wilu combai hai ting de phd vd than gUOng tdc dp khIu nhanh ddp flng dflpe nhu cau sdn Iupng khi cln huy ddng tang, dam bao k l hoaeh sdn lupng cua nhflng nam tilp theo khi cde dien san xult d tang Uen W +0 -:- -\-105 dang thu hep din. Do vdy, qua phan ti'ch va so sdnh cua tflng phuong an ugn, tac gia de xult lya chpn cdng nghe chdng gifl Id ehp 1-8-1 Id: "Cdng nghe chdng Id chp bang ddn tfiuy Iflc ty hdnh, khiu than bang com bai, dilu khien dd vdch bang phd hod todn phin". Khi ta dp dung cdng nghe u e n vdo Id ehp I- 8-1 ta sg ed cae bdng chi tieu kinh t l ky thudt n h u sau:
Bdng 1. Cde chi tieu kinh tS ky thu^t Id chg CGH
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16 17 18
Chieu d^y truuR binh cua via ChiSu d^y I6p khau The trpng than G6c doc trung binh cua via Chieu dai trung binh 16 ch?
Chieu rong Iu6ng khdu Tien do 16 chg 1 chu V^
San lu<?ng khai th^c than I ngily dem
San lu^ng than khdu cuong San lugng than thu hoi He so hoan thanh chu ky Thai gian hoan t h ^ chu Id S ^ lugng trung binh n ^ ci^ 16 chg
NhSn l\ic h o ^ ihMi 1 chu k^
Nang suat lao dgng c6ng nhiin Iivcti6p
So ma 16 chuSn bj cho 1000 tSn than
Chi phi dSu nfa u ho^ cho 1000 din than
Chi phi nudc s^ch cho 1000 tdn Chi phi rang khau cho 1000 tan Ton thSt than
m m T/m'
d?
m m m Tan TSn Tan ca Tk Nguii t/cong m/lOOOT Kg/IOOOT m'/lOOOT C4i/1000T
%
5,5 2,8 1,7
" 1 0 ' "
100 0,63 0,63 2334 1290 1044 0.9 0,5 700.000
96 19,3 4-:-6 10-:-20
38 1 16*18 N A N G LLfONG VlfiT N A M (s6' 124+125 t h a n e 9+10/201511 CTl
KHOA HOC - C 6 N G NGHE »
2.3. Lua ebon thiet bi chong giii vd khai thdc 2.3.1. Lua chgn ddn cbongtu bdnh cbong giii chg 1-8-1 Can cfl vdo dac diem dia chat ky tfiudt via than khu vuc cho 1-8-1 dy kien dp dyng Id chp co gidi hda ddng bp via cd chieu day trung binh Mv = 5,5m vd dac diem dp lyc md tac dung Ien Id chp, de chdng gifl gflflng Id chp c l n phai sfl dung dan chdng kieu dd - chan Id kieu cd tdc dung chdng dd dp lye ndc la chinh. Dya trgn kit qud ti'nh toan dp lue tac dung len vi chdng cung vdi edc dieu kien dja chit via, ta chpn ddn chdng gifl guong Id chp Id dan chdng ZFS4O00-15/32L cd khd ndng chiu tai 4000 KN tuong flng 400 tin ddp flng yeu cau chdng gifl.
Bdng 2. Ddc tinh Ity thuat cda ddn cbong ZFS4000-15/32L
1 2 J 4 5 6 7
a
9 iU 11\2 IJ
K h o ^ g chigu cao chong Khoang each gid Chieu rgng gia Kich thu6c ( D x R x C) L i ^ chong ban dau Tai trgng lam v i ^ So cgl chong thiiy lgc Cudng dg khdng nen ndc C u d n ^ d d khdng ndn nen Gdc doc chong thich h g p A p \^/c Hjun b o m Trgng lugng d i n
P h u a n g thuc thai nun mm m m mm KN KN Cgt MPa M P a .E>9.
M P a Tan :> tac: Eheu k]
1 5 0 0 - 3 2 0 0 1500 1430 5000x1430x1550
3694 4000 2 0,7 1.43
# 2 5 32,3 16 uen tai dan
Hinh 2 Ddn chong ZFS4000-15/32L
- Kiem tra khd ndng khdng lun: Khdng lun he vi chdng - nen Id dnh huflng tryc tflp tfli dieu khiln ip lyc Id cho. H i a i ^ lun nen Id dflpc bieu thj trong mdi tuor^ quan cua ip lyc len 1 don vj tfIt dien nen. De ddm bao hieu qud sfl dung cpt chdng nen Id phai gjfl dflpc ip lyc chiu tdi tdi da cua dan chdng Tai t;'"' \-uc iin ^'ing via 8 dd Uy cd cfldng dp khdng nen trung
binh Id Il6.2\IPa \ d i ddc tinh ky thuai c u j dan chdng ZFS^OO0-15 32L cd lai uong lac dung xudng nen Id 1.45 MPa dam bao klia ndng chdng giu Id chp md khdng bi lun.
2 3 2 Li/a clrni mdy kbdu combai id thiet bi vm tdi than Can cu \ao dac diem dia chat \^ thudt \ia 8 dp cflng cua than 2-- 3. gdc doc Id d i p dy kien j^i dung CO gidi hoa ddng bp tnii^
binh 100. Ket hpp \di dan chdng cd chieu cao chdng dd 1.5 a 3,2m. ta lya chpn ma\ khau MG200/475-W va TB\T than trong Id chp la mdng cdo SGZ ~(H 26^ (xem bdng 3. hinh 3).
Trong id cho: Khi Id cho cd dp ddc a 25o van tai than dm ihyc hien bdng cac mang trupi thep. khi dp ddc Id cho < 230 diing mang cao cd nang suai phu hop vdi tung he thdng khai thdc \ a ring Id chp cu tfie. Rieng cac Id chp dp dung cdng nghe kliai ihaccogidi hoa ddng bp. \dntai than irong Id chp duoc thuc hien bdng cac mang cdo ddng bo di cung may khau than, ddi \ di loai md\ com bai nhu neu tren. sfl dyng ddng bp mdng cao SGZ 764 2 ( H do Trung Qudc sdn xult.
Bdtig3. Dac linh ky ibtidl ciia MG200/475-'^
1 3 4 5 fl 7 8 9 10 11 12 13 14 15
^Rffni^^VTIfT?^
Nang juji Buoc khau Goc doc Dudng kinh tang Van 16c quay ciia lang Chieu dai tang Luc keo Van loc may Kich iliuac linh ki^n max Tron^ luong Hnh kipu m a x Cone suai may Dien ap Tong trgng lugng may
Phuong phap
•if,', ma
T;h m m nun D6 m m r/min m m KN m/min
m m T K W
V T hii bui: p h u
^ ^ • R I ^ ^ H
1000 1800 -:- 3600
6 3 0 , 8 0 0
<35»
$ 1 6 0 0 , 1 8 0 0 , 2 0 0 0 3 1 . 4 , 3 6 , 4 1
2030 4 5 0 0-:-6 3220x1030x830
< 6 , 5 200x2+75
1140 35 Qsugng
Wl't'H
Hmh } . Mm khau hai ting MC200i475-W
rHt
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NAM,^1
124+125 t h a n g 9+10/2><C KHOA HOC - C O N G NGHt |
Bdr^ 4. Ddc tinh f^ thudt mdng cdo SGZ 764/264
t 1 Nang suat van tai 1 T/h 2 Cdng suat dong eg 1 KW 3 Dien dp j V 4 1 Kieu xich giiia
600 2x132
1140
Hinh 4 Mdng cdo SGZ 764/264 Bieu dd td chflc sdn xuat 16 chp co gidi hda;
Dua trgn cac kit qud linh todn theo sdn Iupng yeu cau ciing nhu trtnh dp tay nghi cua cdng nhdn. Can cfl vao dieu kien cu die cua md, luan van tfnh todn vd tfianh lap dflpc bieu dd td ehfle san xuat Id ehp co gjdi hda khai thdc than vdi 3 ea/ngdy dgm vdi sd lupng cdng nhan va cdn bd Id 96 ngudi nhu sau:
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3. Ket l u ^
Wee diu tfl vd trien khai thanh cdng cong nghe co gidi hda
khai thdc bang td hpp vi chdng co khf hda ZFS40O0-15/32L kit hpp mdy khau MG200/475-W tai khu vyc via 8 Khu trung tdm Vdng Danh - Cdng ty than Vang Danh se mang lai nhflr^
hieu qud kinh te vd xd hpi n h u sau:
- Nang cao nang suit lao ddng, gidm dupc gid thdnh khai tfidc va giam tdn that so vdi cdng nghg khai tfidc khac, tang cdng suit Id chp. Ti-gn co sd do tao dieu kien eho Cdng ty nang eao sdn lucftig khai thae than theo yeu cau cua TKV; ndng cao hieu qud cdng tdc dao Id, khiu than Id chp, tao dieu kien cdi tfiien dieu kien Idm viee cua ngfldi lao ddng vd mang Iai I d nhudn eho doanh nghiep.
- Cdng nghg ndy khac phuc dupe edc tdn t ^ khi sfl dung cdng nghe khai thac than bang may khiu kit hpp vdi ddn chdng ur hdnh VINAALTA, tfl dd giup Cong ty tfian Vdng Danh dp dung rpng rai cSng n ^ e ndy d cac khu vyc cd dilu kien dja chat 1^
thudt md cho phep va Id co sd quan upng de nhdn rpng md hinh cdng nghe nay cho nhieu don vi thudc Tap doan Cdng nghiep Than - Khodng sdn Viet Nam.
- Nang cao trtnh dp chuygn mdn vd trinh dp nghign cflu khoa hpc cho edn bp ky thuat md trong Iinh vyc cong n ^ e vd thilt bj CO gidi hda khai thdc ndi ehung va trong dieu kien dac thu vl dja chit cua md noi rieng; Gop phin ddo tao nang cao trtnh dp ehuygn mdn, trtnh dp flng dung cdng nghe hien dai vdo sdn xuat cho can bp ky thudt cde cdng ty khai thdc than ham Id eua Tap dodn Cdng nghiep Than - Khoang sdn Yiet Nam;
Day manh phli kit hpp gifla nghign cflu vd flng dung thyc t l san xult va nang cao trinh dp n ^ i e n cflu, phan tich, xfl Iy cac giai phdp ky thudt sdn xult.
4. TAI Lifiu THAM KHAO
[1]. GS.TS Trdn Vdn Huynh, PGS.TS Trdn Vdn Thanh, PGS.TS Do Manh Phong, TS Thdi Hong Phuang: Gido trinh Md via vd khai thdc than hdm Id khodng sdng dang via - NXB Giao thong van tdi - 2002.
[2]. PGS TS Trdn Vdn Thanh, Vu Dinb Tien: Gido trinh Cong nghi kbai thdc than hdm Id - NXB Giao thdng van tdi - 2005.
[3]. GS. TS L§ Nhu Hung: Gido trinh Nguyen ly thiet ke md hdm Id - NXB Giao thdng van tdi - 2000.
[4]. Cdng ty CP TVDTMo vd Cdng nghiep: Tdi lieu TKCS khai thdc phdn Id gieng cdng ty than Vdng Danh - 2007.
[5]. TS Nguyin Anh Tudn, Th.S Ti-dn TudnNgqn, ThS Ddo Hong Qudng vd nnk, Dif dn ddu tu dp dung thd nghiem cong nghe ca gidi boa kbai thdc bang to hgp ddn tu hdnh KDT -1 ket hgp mdy ddo Id AM -50 tai khu vuc ddy doc via 7 Toy Vdng Danh - cdng ty than Vdng Danh, Vten KHCN Mo -2005
N A N G L U O N G VIET NAM (s^ 124+125 thane 9+10/2015) I HH
