Thong tin khoa hoc cong nghe m o
^KET QUA BUtrC DAU AP DUNG CONG NGHE KHAI THAC LO CHO XIEN CHEO sit dung dan chong mem loai ZRY20/30L tai Cong ty tlian Hong Tlial
For increasing the mining efficency for the inclined medium thicii coal seams at Hong Thai Coal Company, Institute of Mining Science and Technology (IMSAT) has coordinated with Hong Thai Coal Comapny in the research and application of the diagonal long wall min- ing technology with using the flexible shield support ZRY20/30L to the long wall of the coal seam 9b at Trang Khe II region. The paper introduces some initial results from the application of the above mentioned technology as well as some experiences for treating the failures in the coat mining process
ThS. T R A N T U A N N G A N ThS.OAMHUYTAl ThS. P H O N G v i f r BAC Viin khoa hoc Cdng ngh$ md - Vinacomin
KS. Le H G N G S O N Cdng ty than Hdng Thii - TKV
Bien 0p: Bio Hong Quang
D^n ch6ng m ^ m loai Z R Y c u a T m n g Q u 6 c la t6 hg^p g 6 m n h i l u gia c h 6 n g (vi c h 6 n g ) , m o i gia cli6ng g 6 m 3 d o a n (xa noc, xa c h e c h a n va xa dudi), lien I t l t v a i n h a u b a n g x i c h hogc khap ban le. 0 bg phgn xi duoi d u ^ c bo tri h# t h o n g xilanh piston thuy IM-C CO t a c d g n g c h o p h § p t h a y doi c h i l u cao c h 6 n g g i i r 16 chg* t r o n g m p t k h o a n g nhat djnh va ho t r o c o n g t a c d i l u k h i l n d a n ch6ng trong q u d t r i n h khai thac. V d i d a n c h o n g m I m logi Z R Y ( h i n h 1,bang 1), c h o p h e p khai thac higu q u a doi vai d i l u k i $ n vfa t h a n d o c nghieng d e n d o c dCrng co c h i l u d a y vfa tCr 1,6 -^
4,5m. Trong 2 n a m g a n day, a T n j n g Q u 6 c d a co khoang 10 gu'eng 16 cho' t h u $ c c a c tmh H a B i c , T h a n h Hai, T a n Cu'O'ng su- d g n g logi g i a n ch6ng niy de khai thac vfa doc, m 6 i gu-ang 16 c h o co c h i l u dii tu- 60 ^ 8 0 m ) c h o s a n lug-ng ti> 8 0 -^
120 n g . t ^ n / n 3 m , n a n g s u a t lao d g n g trg-c tiep ti>
6,0-^ 1 0 , 0 t a n / c 6 n g .
N a m 2 0 1 4 , C o n g ty t h a n H i n g T h a i da phoi hg-p v o i V i # n K H C N M o lap Dg- a n d a u tu- ap d g n g thi> n g h i d m c o n g n g h ? k h a i t h a c 16 c h g ' xien cheo, c h i n g giO b i n g d a n c h 6 n g m e m loai Z R Y cho cac k h u vg-c via d 6 c k h u T r a n g K h e , s a u do l | p Thiet k l ban v e thi c d n g c o n g n g h g , thiet k l du-p-c G i a m d i e C o n g ty t h a n H 6 n g T h a i phg duypt t h e o Q u y l t d j n h s 6 : 2 5 7 0 / Q D - T H T , t h a n g 6 n a m 2 0 1 5 . Dk t r i l n khai c 6 n g n g h g v a o thg-c t l , C o n g ty t h a n H 6 n g T h d i cDng v d i Vien K H C N M o , cac c h u y e n gia T m n g Q u o c h u ^ n g d i n ly t h u y i t va du-a d i n g b g t h i l t bj v a o lap d | t , khai thac 16 chg'. C u l i t h a n g 7/2015, t o a n bp day c h u y i n da l i p d | t x o n g , d i n nay 16 chp- da khai
t h a c du-pc h a n 2 t h a n g . D e k h i n g dinh tinh uu viet c u n g nhu" k h a c p h g c mOt s 6 t i n tai cua cong n g h p t r o n g t h y c t e s a n x u i t , bai b a o t i n g hop cac k i t q u a dgt du'p'c c u a q u d t r i n h t r i l n khai ap d u n g va d u e n j t m p t s o k i n h n g h i p m d l phgc vy c o n g t a c khai 16 chp- t r o n g giai d o g n t o i .
1 . Q u a t r i n h t r i l n k h a i v a h i r v n g d i n ap d u n g c o n g n g h p k h a i t h a c I d chp^ x i e n cheo su* d g n g d a n c h d n g m I m Z R Y t g i c d n g ty t h a n H i n g T h a i .
S a u khi t h i l t k l ky t h u $ t thi cdng d u p c phe duypt, C d n g t y t h a n H i n g T h a i - TKV, Vipn Khoa h p c C d n g n g h e M o - V i n a c o m i n , Cdng ty Co p h i n D u Ijch va T h u - a n g m g i v a cac chuyen gia T m n g Q u o c d a p h i i hQ'p t r i l n khai cdng ngh$
v a o thg-c t l tgi 16 c h a d i u t i e n (16 c h p phan ting mu-c + 6 5 / + 9 5 via 9 b k h u T r d n g K h § II). Qua trinh t r i l n khai b a o g o m cac^ npj _.dung _cdng viecii I Hu-dng d i n d a o I i i i | j B | m i l | f i f l i ^ l i i i i l i | i i i i |
^llilil ^Ji\ III'* ''ii'L h^Dingbi^
KHCNM S6 10/2015* CN KT HAM LO
1) Xi d§n hunfng: 2) Xa ndc (xi chinh); 3) Xi che ch^n: 4. Xi dudi, 5) Piston diiu khiin xd dudi
a Ciu t^o din chdng ^ ^ ^ ^ ^ ^ ^ ' b . Din ching loai ZRY~
Hinh 1. Dan ching mim loei ZRY Bing 1. Die tinh k^ thu^t cua m0t s6 loai din ching ZRY cua Tmng Quic
TT 1 2 3 4 5 6 7 8 9 10
Tin thdng so Chieu ddi xi chinh (xd n6c) Chieu ddi xd che c h i n Chieu ddi xd dudi C h i l u rOng gid thdn gid Khoang tdm 2 gid l i l n nhau Hinh thO-c liSn k^t cdc gid Chieu cao ch6ng giO cua ddn Chieu ddy v?a dp dung G6c doc via dp dgng Trgng [[ic?ng m5i gid
D o n vi mm mm mm mm mm
m m
a*
Kg
Khoi luvng ZRYie/25L
1170 550 1200 320 3S0 Xich 1,6 + 2,5 1,6 + 2,5
> 4 6 0
ZRY20/30L 1260
850 1200 320 350 Xich 2,0 + 3,0 2,0 + 3,0
> 4 5 0 380 + 400
ZRY3e/4SL 1942
950 1200 320 370 Xich 3,6+ 4,5 3,6+ 4,5
> 4 5 0
-
md hinh thg-c nghipm ngodi mgt bdng; Chuin bi di$n vd hu'ang ddn ldp ddt ding bp thilt bj vdo 16 chp"; Hu'ang ddn vgn hdnh khai thdc 16 chp*.
• Cdng tic dio tQO, huung din ly thuyit ngoii m$t bang.
Cdng tdc ddo tgo ly thuyit va thg-c hanh ngoai m§t bdng dupc t l chu-c vdo ngdy 07/6/2015 du'6'i sy hu'd'ng dan cua cdc chuyin gig Tmng Quic vd cdn bp cua Vi^n Khog hpc Cdng ngh0 Mo - \flngcomin. T i n g s l lu'p'ng cdn bp, cdng nhdn cua Cdng ty than Hing Thai du-pc ddo tgo, kilm tra vd du-p-c d p chijng chl Id 157 ngu'd'i.
Npi dung ddo tgo g I m cdc v i n d l ca bdn: (1) Hyd^ng d§n sir dgng, vdn hdnh, sCra chO'a vd bdo du'd-ng hp thing d i n g bO thilt bj cua ddy chuyin cdng ngh$; (-2) Sa d l cdng ngh^ khai thdc Id chp"; (3) H I chilu, quy trinh cdng ngh$
khai thdc 16 chp'; (4) Hp chilu lap dgt, thao thu h i i cdc thilt bj 16 chp*; (5) Bi§n phdp xi> ly mpt s l sy c l xay ra trong qud trinh khai thdc 16 chp;
(6) Bien phdp ky thugt an todn trong qud trinh khai thdc vgn hdnh c6ng nghe; (7) Trdch nhipm ca nhan trong qua trinh khai thdc Id chp; (8) Hu'dng d i n thyc hdnh - Vgn hdnh chay thO thilt bj tr^n m$t bang. Mpt so hinh anh v l md hinh Ilp dgt dan ching phgc vg cdng tdc hu'ang d i n thyc hdnh.
* Cdng tic chuan bj dien va lap dit din ch^g vao 16 chQ.
Theo thiet k l ky thugt thi cdng, cdng tdc khai thdc Id chp thy nghipm a vig 9b dypc chig lam hai giai dogn: Giai dogn 1, khai thdc 16 ch? phan t i n g mijc +75/+95, chilu ddi Id chy xien cheo L
= 40m, gdc d i e bieu kiln 300, chilu ddi dy kiln KHCNM S6 10/2015* CNKT HAM LO
Thong tin khoa hoc cong nghe m o
Hinh 3 Md hinh lip dit din chdng ngoii m^t bing phuc vu cdng tic hudng din thuc hinh khai thdc theo phu-ong Lp = 40m vdi mye dich d l thu-c hdnh Idm quen vai cdng ngh$ mdi. Giai dogn 2, khai thdc ldp ddt ddn ch6ng kdo ddi 16 chp- xuong miJc +40 d l hinh thdnh 16 cho" c6 chilu dai xien cheo L = 105m. Cong tdc chuan bi di$n vd ldp ddt dan chong vdo 16 chQ' giai doan 1, bao gIm cdc cong vi^c chinh; 1) ddo cdc du-ffng 16 chuin bi cua khu vyc khai thdc 16 chij;
2) lap ddt cdc thilt bj trong h$ thing ding bp cac thilt bi phyc vy cong tdc khai thdc 16 chp"; Cong tdc ddo cdc dud-ng 16 chuan bi cho 16 chp- hpdn thdnh 03/7/2015; tit ngdy 04 + 27/7/2015, ldp d?it ddn Cheng vdo 16 chp', thu h i i cdc vi ching cua 16 ldp ddt, bcm chit tai vd can chmh cho cac dan ching. l i n g s l lyging dan ching Ilp ddt vdo 16 chp 148 ddn (tupng duong khoang 52m), trong d6; dogn Ilp 6 16 n i l chdn chp Id; 4,0 m, doan Ilp 6" 16 thypng xien cheo {thup-ng kho-i diem 16 chp) Id 40m, doan lap a 16 thong gio Id 8,0m. Toe dp lap ddt ddn ching 7 + 22 ddn/ng.dSm, trung binh 14 ddn/ng.dem ( m i i ca ldp d^t vd hodn thipn 4 + 5 ddn).
* Cdng tic khai thic Id cha.
Sau khi hodn thipn ccng tdc Ilp ddt ddn ching, dupc Cyc Ky thugt An todn vd M i l tru^'ng Cong nghidp - Bp Cong Thypng va Tap dodn Cong nghi$p Than - Khodng san Vi#t Nam cho phdp, ngdy 28/7/2015 C6ng ty than Hing Thdi tiln hdnh cdc cong tdc khai thdc 16 chp giai dogn 1. Cing tdc khai thdc dypc t i l n hdnh duoi sy hyo'ng d i n chi dgo cua lanh dgo Cing ty than Hing Thdi - TKV cdo chuyen gia Trung Quio vd cdc cdn k>| cua Vi^n Khoa hpc C&ng ngh$ IVIo - Vinacomin, bap gIm cdc cdng dogn chinh; Cung
c l 16 chp^; khoan no min khiu gyang; tai than lap dat mang tnfpl trong 16 che; ffieu khiln h?
ddn cdn chinh dan ching 16 chp; thdc thu h6i ddn ching doan cull 16 chg^ vd lap dgt b l sung thSm ddn ching a d^u 16 chp (tren 16 dpc via thing gio); va xy ly mpt s l sy co trong qud trinh khai thdc 16 chp.
- Cdng tic cung c6 Id cha- Trpng mil ca san xuit, b l tri mpt cgp cing nhan thyc hipn c6ng tdc cung c l 16 chp. Cdc cong vipc bao gIm; bam b l sung chit tai cho cdc dan chong, cdc cpt thuy don ching tang cyl'ng trong 16 chp; chdn kich n6c hogc cuac hdng phia vdch (trypng hpp bi I P vdch hogc tyt noc); thay the cpt ching hodr cdc chi tiet cua dan ching bj hong; can chinh cdc ddn chong 16 chp khi c i n thiet.
- Cdng tic khoan nd min khau guang 16 chc}r.
Tni'o'c khi khoan n l min khau gypng 16 chp, thao thu hoi mang truvt 6" dogn !6 chp khiu vd xip gon vao mpt vi tri, tiln hanh khoan va ngp no min theo hp chieu thiet ke. Mpt s6 hinh anh 16 chp khai thac sy dyng ddn ching mem logi ZRY (hinh 2).
- Cdng tic lap d$t ming truat, til than, dieu khien dan chdng:
Sau khi n l min khiu gypng dogn 16 chp, ddn chong t y hg xuong theo t i l n dp. Thyc hi^n cong tdc tai, thdp than cua dogn gypng khiu. Hypng tdi than Xir dtrd'i len (theo chieu die 16 chp), tai than d i n ddu lap tra Igi mdng trypt ngay tai (36.
Sau khi tai xong dogn gypng khiu, tiin hdnh si>a gypng 16 ehp cdn chinh dogn ddn ching ngay ngan theo hp chilu, ching cdc cpt thuy li/c dpn tdng cyl'ng cho dan a doan vifa khiu. Sau khi thyc hien xong cde thao tdc can chinh dan ehing hodn thdnh c i n g tdc khau ehing gypng cua dogn 16 e h e chuyin sang khai thdc cho dogn khiu t i l p theo (tryl-ng hpp dogn kh^u ngin, cdc cong tdc d i i u chinh ddn ehing khi khdn, e6 t h i thyc hi#n c6ng vi$c cung vdi di^u chinh hg ddn cua dogn khiu t i l p theo).
- C5ng fac thu hdi din chdng cudt 16 chQ (6 do^n Id noi):
Trong qua trinh khai thde 16 ehp, ddn ching dypc djch chuyin d i n xuIng Id n i l chdn ch?.
Dogn ddn chdng d 16 n i l chdn chp c6 chilu dii t i i thilu dam bao du che chdn dypc 02 cCip chdn chp (Clip thdo than vd ciip di Igi) khoang 10m o l dam bao chdn chp ludn c6 mdt cOp thdo than
KEIC^M S6 10/2015' I \ K r HAM LO
Bing 2 TT
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
Tin cic chi tieu Chifeu ddy via trung blnti G6c doc via trung binh Tnpng lypng thd tich cua than G6e ddc biSu kien cua Id chp Chieu ddi dogn 16 chp xiSn chdo Tien dd khai thdc 1 chu ky 86 ca khai thdc 1 ngdy ddm S6 ca khai thdc 1 chu ky Sdn lypng khai thdc 1 ngdy dim Sdn lypng khai thdc 1 thdng Cdng suat khai thdc Id chp Nhdn cdng phdn xydng 1 ngdy ddm Nhdn cdng KT Id chp 1 ngdy ddm Ndng suat lao ddng chung Ndng suat lao ddng tryc tidp Chi phi thudc n l cho 10001 than Chi phi kIp nd cho 1000 Tthan Chi phf gd cho 1000 Tthan Chi phi nhO hda cho 1000 T than Chi phi mdt Id chudn bi cho 1000 T than Tdn thdt than
Ban vi Mdt Bd T/m'
Dd Mdt m/C.ky
Ca Ca Tan lOtan T/ndm Cdng Cdng T/cdng T/cdng Kg Cdi m' Kg Mdt
%
Sd/trong Thiit ki
2,7 48 1,72
30 40 1,27
3 2 190 4,75 51,3 63
-
3,0
-
142 472 25,6
-
17,3 21
Thucli 2,7
48 1,72 30 40 1,27 3 2 + 3 2,5 + 4,0
46,0 26 18 3,7 5,3 135,1 464,6 5,3 91,3 21,1 16,5 vd cCip di Igi, khi vipc thao than Id chy du'ac tai
theo cup mai, thyc hipn cdng tac thu hii cdc dan ching dogn sau cup thdo than cu (khi dd cCip thdo than cu tra thdnh cup di Igi mai). Cdng tac thu h l l cdc ddn ching du'yc t i l n hanh tir phia dudi 16 chp vd du'yc thyc hipn theo theo tOng cgp (theo hu'dng tir duoi 16 chy). N l u quy <^nh 4 dan ching chuin bj thu h i i co s l thu" ty tir trong ra ngodi Id ddn s l 1, 2, 3 va s l 4 thi thu- ty thu h i i cdc ddn nhu- sau: thu hoi ddn s l 2 -> ddn s l 1 -> ddn s l 4 ^ ddn s l 3.
- Cdng tic lap thim din chong diu Id chQ (d do$n Id thdng gio):
Trong qud trinh khai thdc, dogn dan lap tren 16 thdng gid ngan d i n d l ghim giu' ddn chong Id chy, dogn ddn I l p trfen 16 thdng gid trong dieu ki$n Id chy Id 10m. Nhy vgy theo tiln dp phai lap b l sung thdm dan ching d-16 thdng gid. Cong tdc ldp dit b l sung cdc ddn ching dypc thyc hi$n tu'ang t y tru'ang hyp Ilp dgt ddn ching ban d i u tr6n dydng 16 dpc vfa thdng gid. S l lyyng cdc ddn ching lap dgt b l sung d- Id thdng gi6 bing s l lyyng ddn thdo thu h i i if Id n i i chdn 16 chp.
2. T i n g hyp k i t qua khai thac dp dgng thip nghiem Id chy.
Hipn nay. Id chy dd khai thac theo phu-ang khoang trSn 30m, ting hyp kit qua dgt du'ac sau hon 2 thdng khai ttiac 16 chy thyc t l , xem bang 2.
3. Ddnh gid so* bd v l k i t qua cdng tdc khai thdc Id chy.
* Ve mgt so chi tieu kinh te ky thu$t cua Id c/iy.
- Ve dieu ki§n dja chit thyc t l cua 16 chy dp dgng: Dilu kipn dja chit 16 cha trong thai gian khai thdc vOa qua khdng thay d l i nhilu so vd"!
dilu kien ban dau, phu hyp vdi (Seu kipn vd kha nang lam vipc cua dan ching, nen cdng tdc khai thdc Id chy cd nhieu thudn lyi. Tuy nhien do lap vdch nam ngay sat vfa than la set kit, doi chd mdng vd mIm nen de bj tgt la gay khd khdn cho cdng tdc khai thac vd dilu khien ddn.
- Ve sin lur?ng khai thic vi nang suat iao dgng: San luyng khai thdc cua 16 chy dgt tip 100 -i- 210 tIn/ngdy la tu'ang d l i t i t . Theo thilt k l ban dau, cdng tdc khiu gyyng 16 chy du*yc tiln
Kl'CNMSO 10/20I5*CNKTII\M l.O
Thong tin khoa hoc cong nghe m o
Bing 3. M0t si giii phip xi> /y s y d khai thic Id chQ
Ten sy co Nguy§n nhin Giai phip
Ddn chong a l u 16 cho bi kpt khd difa ddn vdo vi tri l^m vl§c
Ddn c h i n g CT Id thdng gid, khi khai thdc di c h u y i n x u I n g 16 chy bj kpt vdo vdch hodc trg khd d i l u k h i l n
- T n i d n g h y p kpt phia vdch: Co pitdng d i l u khien x^
au6i du-a xd ddn rdi khdi vSch, sau dd c h i t tdi cOt TLD c h i n g d i u xd chinh.
- Tru-dng h y p kpt phia trg: c h i t tdi cdt TLO ching dau xd chinh, sau dd co pitdng d i l u k h i l n xd dudi chdn tnj ra khdi vj tri bj cdm.
Xd ddn c h i n g bj ehuc xuIng (hodc nghich ISn) ben hdng vdch
Do hd c h i l u khoan n l mln khdng dam bao. phan than guang phra vdch du'cc phd, phia tnj khong du-yc phd.
- Khi dau xd chinh bj chuc x u I n g , si> dung cOl thuy li^c don c h i n g phfa dau dan d l d i y d i u xd \&n. Tn/^ng hyp khi chong cdt T L B d i u xd khdng day Ifin duvc, t i l n hdnh tay bdt phan than phia trg vi tri chdn xd dudi d l d i l u chinh hg ddn ddng thdi bom chdt tai cdt TLQ c h i n g dau xd xoay ddn v l vj tri.
- Khi d i u xd chinh bj n g h i c h \&n, djnh vj chic ch^n chdn xd duoi su- dgng c i n ggt co pitdng d i l u khiln xd dudi, d i n g thdi d d tai cdt TLO c h i n g d i u xd chinh, xd chlnh xoay ve vj trf.
- Co pitdng d i l u k h i l n xa dudi, d i n g thdi c h i t tai cOt TLO c h i n g d i u xd chfnh, du-a ddn d i n v l vj trf.
- Trydng h y p khdng d u a ddn v l vj Irl ngay du'p'c, c6 t h i t h y c hidn d* l u l n g khau t i l p theo cCing vdi glal phdp d i l u chlnh hd c h i l u khoan n l mln cho ph^ hi7p.
Ddn c h i n g cdm vdo vdch via (ddn bj cdm vdch)
Do vdch vfa Id vdi c h i l u ddi Idn, khi dan c h i n g t y hg se bj cdm vdo vdch via
Ddn c h i n g cdm vdo trg via (ddn b|
cdm vdch)
Do trg via m I m y l u vd bj Id vdi c h i l u ddi Idn, khi tai than ddn c h i n g t y hg se bj d m vdo tn,! via
- C h i t tai cdt TLO c h i n g ddu xd chfnh, sau 66 co pitdng dieu k h i l n xd dudi chdn tn,j ra khdi vj trf b| c$m, - Trydng h y p khdng d u a ddn v l vj trf ngay du'pc, c6 t h i t h y c hi$n a luong k h i u t i l p theo cOng vdi giii phdp dieu chinh hd chieu khoan n l mln cho phii hop.
Ddn c h i n g bj vdn
- Do hd c h i l u n l mln khdu guffng khdng phCi hpp.
- Do bien ddng vdch vd trg via - Do c h i l u ddi lidn k i t xich cua ddn chong khdng d i u .
- S u dgng cdc gidi phdp d i l u chlnh xd chfnh d l dira ddn v l vj tri theo ddc d i l m cua lOng dogn ddn.
- K i l m tra d i l u chinh Igi cdc lidn k i t xfch ciia ddn c h i n g cho deu.
Thu h i i ddn chong d Id n i i c u l i Id chy, trudng hop khdng cdn Idp ngdn cdch
Trong qud trinh khai thdc, do Idp ngdn cdch khdng d u y c i^nh vj chde chdn, Khi Uiu h i i ddn, k i t cau ngdn cdch khdng cdn, dd trdn ndc ddn tgt d l gdy khd khdn cho cdng tdc thi cdng
- Thu h i i I l n l u y t cdc ddn c h i n g Id chy, tuo'ng tg nhif thu h i i vl c h i n g d Id chuan bj phia sau Id chy.
- Odnh hai cdt TLO tdng c u d n g d d xd chfnh cOa ddn c h i n g djnh thu h i i .
- Thdo thu hoi pit tdng vd d u d n g I n g d p djch cho xd dudi, sau dd thdo thu h i i xd dudi.
- Thdo thu h i i cdc xfch lidn k i t giOa xd djnh thu hfii vdl xd k l t i l p .
- D d tdi, thu h l l cdt thuy l y c dan phfa d i u xd.
- D d tai cdt thuy don cdn tgi, thu h i i xd chfnh vd cOt thuy lyc don dd
hdnh n i l t i l p d i r t d i e m ti>ng d o g n t h e o h u d n g tie d u d i Idn theo c h i l u d i e 16 c h y v d t r o n g ciing m | t ddi k h i u . T h y c t l khai t h a c 16 c h y c h o t h i y , vi$c t l c h u c nay c d n h u y c d i l m s a n l u y r i g v d n d n g s u i t trong ca t h i p , tip d 6 ban chi d g o d d thay d l i c d n g tdc t l chiJc k h i u g u a n g : t h e o c d c h nay,
t o d n g u ' a n g 16 c h y t h e o p h u a n g b l tri hai dai k h i u g u a n g d i n g thdri, dai k h i u n i i a chdn 16 chp v u y t tnrcrc dai k h i u nu-a d i u 16 c h y m | t t i l n dO 0 , 8 m ( k h a u g y y n g 16 c h y d g n g bgc). Trong mSi ca b l t r i hai vj t r i k h i u , m i i vj tri k h i u dogn 16 c h y t u 7 -^ 8 m g I m 2 d i n 3 c d n g nhdn, t u d d sdn
KHCNM S6 10/2015'CN KT HAM LO
iugrng khai thac hdng ca cai thidn vd nang suat lao adng cung iju'o'c nang cao.
- Vd mdt so chi tieu chl phi: Cdc chi phi vat tu' cho Id cha tuar\g au'ong hole nhi^u hen so vcri thilt ke, vi cac ly do: hd chilu khoan n6 min guong Id cho' thd'i gian flau chu'a phu hop vd'i gu'eng khSu, Id chO' sau no min bi id' hdng nhilu.
Sau dd, cdng ty da d i l u chFnh hg chieu nd min cho phu hop vd'i tCrng doan gu'eng khau (hidn tai theo didn tich khau guong bd tri tir 2 den 4 hdng Id min), nen chi phi thudc va kip nd cung giam di, d i l u kien khai thac id cha cung tdt hon va cdng tdc dieu khiln dan cung thudn loi hon. Hien nay, cdng tdc khai thdc Id chp' dang duoc theo ddi vd lap cdc giai phdp de diin hodn thien cac thdng sd cua tOng cdng do^n khai thdc vd cdng tdc t l chLPc san xuat, chac chan thdi gian tdi cdc chi phi v§t tu' cho khai thdc Id cho se hop iy hon.
* Ve diy chuyen thiet bi cua id cha: Ddy chuyin thilt bj g6m tram bom, he thdng c i p djch vd ddn chdng Idm viec tdt, dam bao dd tin ody phgc vg qud trinh khai thdc Id cho.
* vi cdng tic an toin cua cdng nghd: Cdng nghe cd quy trinh khai thdc don gian, dan chdng cd c i u tao don gian vd thilt bi cua Id cho khdng nhilu, nen cdng tdc an todn v l thiet bi cung nhu cdng nhan lam vide trong Id cho duac dam bao.
So vdi cdng nghd l<hai thdc tru'dc ddy dp dgng tai vFa 9b (cdng nghe khai thac budng Id thuong chdo), cdng nghe khai thdc, guong Id xien cheo su dgng ddn chdng mIm ZRY cdng tdc khai thdc vd cdng tdc quan ly than khai thdc t u guong du'oc chu ddng hon. D i l u kien Idm viec trong id cho tdt hon, do Id cho duoc thdng gid theo m?ng thdng gid chung khdng phai thdng gid cgc bd. Tinh d i n nay, sau hon hai thdng ap dgng, odng nhdn dd tuong ddi thuin thuc cdng nghe vd quan ly tdt cdng tac an todn lao dpng.
4. Otic k i t mpt s d giai phap x v ly trong cong tac khai thdc Id ch?.
Ngoai cdc giai phap xu ly cdc su cd da du'oc a l c j p trong thilt k l , trong khai thdc Id cho su' dgng ddn chdng m I m tai v!a 9b khu Trdng Khe II da cd nhilu hidn tu'ang xay ra trong qua trinh thi cdng I l p dat ddn chdng: khai thac Id ch? va thu hdi vi chdng v.v.. B l khic phgc cdc hipn tu'ong ndy, trong qua trinh khai thdc Id cho Cdng ty than Hdng Thdi - TKV dd k i t hop vdi
Vien Khoa hpc Cdng nghd Mo - Vinacomin vd cdc chuyen gia Trung Qudc da l|p giai phdp xu ly cdc SU' cd Id cho. Cac giai phap xO ly da du'oc dp dgng trong thg'C t l va dem lai hieu qua trong qua trinh khai thac Id cho vd dam bao an todn.
Cac giai phap xCf ly sg* cd Id cho, xem bang 3.
Trong thdi gian tdi, Cdng ty than Hdng Thdi tiep tgc phdi hpp vdi cdc cdn bd cua Vipn KHCN Md thg'C hien cdng tdc ldp dat bd sung 6k keo ddi Id cho thanh 105m phgc vg cdng tdc khai thdc dp dgng thu nghipm Id cho giai doan 2.
5. K i t luan.
De ndng cao hieu qua khai thdc trong dieu kien v?a day trung binh, ddc nghieng tgi Cdng ty than Hdng Thdi - TKV, Vipn Khoa hpc Cdng nghp Md - Vinacomin da phdi hpp vdi Cdng ty than Hdng Thai - TKV nghien CLPU, d l xuit vd triln khai dp dgng thu nghipm so do cdng nghe khai thdc guong Id cho xien cheo, su dgng ddn chdng m I m logi ZRY20/30L tai Id cho via 9b khu Trang Khe II. Sau hon hai thdng dp dgng thu nghipm. Id chp da khai thac duoc g i n 6.000 t i n than. CdcchTtieu kinh t l ky thudt co ban thuc t l cua Id cho tuong ddi tdt. Trong qud trinh dp dgng thg'C t l cho thiy: cdng nghp cd nhieg uu diem so vdi cdng nghe hipn tai dang dp dung tai v?a gb vd so vdl cdc loai ddn chdng trudc day da dp dgng nhu dan mem d Vang Danh, dan 2ANSH d Mao Khe vd Hdng Thai: do k i t c i u ddn chdng don gian, trpng luong nhp, de thdo lap hope thay t h i , thich Crng cao trong d i l u kipn vTa cd biln ddng ve chilu ddy vd gdc ddc.
Vdi cdc k i t qua dgt duoc trong thdi gian dau dp dgng va mdt sd kinh nghidm xCr ly cdc su cd trong qud trinh khai thac Id cho, se la co sd tdt d l khai thac Id cho giai dogn 2, tiln tdi nghidn CLPU hoan thipn cdc thdng sd vd hudng ddn dp dgng cdng nghp.
rdf Uiu tham khao:
1. Dl/ an d i u t u dp dgng thu nghiem cdng nghe khai thdc Id cho xidn cheo, chdng giu' bdng ddn m I m ZRY tgi Cdng ty Than Hdng Thdi - TKV, Vipn Khoa hpc Cdng nghd Md, thdng 7/2014.
2. Tdng hop sd lipu thdng ke trong qud trinh khai thdc Id cho xien cheo, sir dgng ddn chdng m I m logi ZRY20/30L tai via 9b Cdng ty than Hdng Thdi, thdng 8, 9 nam 2015.
KHCNM S6 10/2015* CNKT HAM LO
