Chao mCfng 44 nam Ngiy thanti lap Vien Ktioa hoc Cong nghe Mo - Vinacomin
an.
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ii„
iiili, ' ^ 1 ! 1 * , i l l ;
Italiii S%li Usii IB
y N G H I E N c i r u IMQT S O G I A I P H A P M d R O N G P H A M V I A P D U N G
C 6 N G N G H E CO Gicd H O A B O N G B O L 6 C H O C O T DAI T H E O PHirONG
TAI CAC MO THAN HAM LO THUOC TKV
T S . U B u t Ngoyen, T h S . Biiih V a n Citimg, T S . Dao Ngoc H o a n g Vien Khga hgc Cdng nghe Mi - Vinacomin Bien tap: TS. Bio Hdng Quing
Tom t^t
Den nay. tai m^t sd nuoc tren thi giai nhir Tnmg Quic. Nga, ...dSip dung thanh cdng cong nghi cagiii hoa dl dai Iheophamg cho dieu Uen gic die loi 45', tham chi din SS'doi vii via than day tnmg binh. din JS" * 41' ddi vol via than day khai Ihac hg n-an. Cic kinh n^uem tir viec ^ dung noi tren cho thin viecapdung eoglmhiaddngbdldchgcdldUtheophuangchocackhuvvcviathandgylrungbinhdinday.gdcddclonlgicacnid
nnlolhugcTKVlahoariloankhdlhiTuynMHdiimhopvaikMnanglythudtmngnuac.giaidc^lru6cmilchi deinialmirgngphgmviipdunglheogdcdocdiii3S'diivdiviadanMn4S'diiv&iviadaylrvngbinh
i Nhin lai qui trinh phat tnSn san lu-yng than TKV se tang tarang, dat 39,4 tri^u tan vao nam rtS'Sllo hon 10 nam qua cua Tap doin Cong 2030 (tSng 1,9 l^n so voi hien nay, hinh 2b). Nlu nghiep Than - Khoang san Viet Nam (TKV) cho khong ti^p tgc c6 nhOng thay doi vh chat trong thiy n4u nhu' nam 2001, san luong chi la 4,1 c6ng nghe khai thac. Tap doan se phai tSng so trieu tin, thi dSn nam 2015, con s6 niy da dat lu'ong lo cho va nhan Ivc \njrc ti^p phuc vu khai 21 5 tn#u tan, tu'ong iJng mi>c ting gin 5 lan. thac. Giai quyet vln de theo hu'dng nSy la rit D6ng th&i, cic 16 cho ch6ng go da du'p'c thay kho kha thi, bdi thu'c t l hien nay, mac d£i TKV thl hiu nhu hoan toan bing cac Id cho su' dung khong ngCmg dua ra cac dSi ngo t6t, nhung vln vi ch6ng thuy luc, c6ng nghi co gi6i hoa (CGH) dang gap kho khan trong viec giu' 6n dinh va thu duoc trien khai thi dilm tai mot s6 don vi. Co thl hut lao dpng him 16. Ngoai ra, gii thanh d c Id khang djnh, viec d6i moi c6ng nghS khai thac da cho thuy luc hien dang cao, fjp tmng chO ylu 6 gIp phin quan trong diy nhanh t6c dO tang san chi phi nhan cdng va nguyen v i t lieu. Thdi gian luong than him 16 cua TKV (hinh 1). tOi, khi luong cdng nhSn va chi phi mua sam vSt
Tuy nhiSn, hi§n nay cac 16 cho siJ dyng vi tu diu vao tang len, gia thanh san xuit se tiem ching thuy luc dong gop chu ylu san luong cho can, th|m chi cao hon gia ban, ding nghta vdi TKV da dat gidi han v l san luong v l nang suit viec san phim than cua TKV se kh6 canh tranh (hinh 2a). Trong khi d6, d l dap ung nhu ciu tren thi trudng.
than cho nln kinh t l , san lucng than him 16 cua B l giai quyet cac kho khan tren nhim dam
' " " ' ^ " LfletoCGH ' O n jiinnMZRY ./^a*' OT!
a. Sin luting than him Id nim 2001 b. Sin luong than him td nSm 2015
e-
Hinh 1. So sdnh sdn lu^ng man him 16 ndm 2001 vd 2015 cOa TKV [3]
KHCNM S6 10/2016 * CNKT H A M L 6
Thong tin khoa hpc cong nghe m o
Congnghe
a Ch! tiSu ccr bin cOa cdc cdng ngh$
XUD l i l t llilc b. Ki ho^ch sSn lu^mg than him Id cOa TKV Hinh 2. Hi§n tr^ng cdc ch! ti§u ca bdn cda cdc cdng ngh$ khai thdc bdng khoan nd min vd ki ho^ch sdn lux?ng than him Id din 2030 cOa TKV[1]
Bdng 1. Ting hpp cdc cang ngh$ CGH khai thdc duqic dp diing trong TKV
TT 1
2
Ten cong ng/if
CGH khai thSc v!a day tnjng binh, thoai d i n nghigng (khiu h i t chilu day via)
CGH khai thac via day trung binh, ddc nghigng d i n ddc dCrng (khiu hit chilu day via)
CGH khai thac via day thoai d i n nghifeng (16 cho ha tiln)
CGH khai thdc via day ddc dilng (Id cho NN, DVPT)
Don vj ip dgng
Khe Cham
Di/ang Huy Quang Hanh Hdng Thai
Mao Kh6 vang Danh
Nam Mllu Ha U r n Khe Cham vang Danh
Ha Long
Md hinh thiet bi C(SH d i i v c si>diingf*J
G I L + MK DTH + MK DTH + KNM DTH * MK DTH + MK DTH t MB DTH + MB DTH + MK DTH + MK DTH + MK DTH + MK DTH + KNM DTH + KNM
Thai gian bat aiu ip dftng
(nim) 2002 2005 2012 2015 2015 2008 2008 2008 2010 2015 2016 2007 2012
Ph^mvi g6c doc lim vl^
hi^u qui (S^i
£20
5 20 35 2 45
S20
£20
£20 20 2 45
niSlL-giilhuyluc:DTH-ilintvhinh:MK-miykhiu.MB-naybid.KNM-khoann6mln ] bao muc tiSu p h i t t n i n b i n v&ng, vi#c ap dung than k h i o nhau. T i n h d i n t h d i ffilm hi#n nay,
c i c cdng ngh^ khai t h i c CGH cd san luong, n h i l u mo hinh cong n g h j CGH da d u o c tliSli nang s u i t lao ddng dao yeu c^u It nhSn luc la khai trong t h u c t l , bao g i m : (1) CGH khaittifc con dudng t i t y l u cua TKV. N h | n thuc v l n d l , via d i y tmng binh, d i e t h o l i d i n nghieng W ngay t u nSm 2002, TKV da chu tnrong nghien ap dgng tai Khe C h i m , D u o n g Huy, QuaiH cuu thay d l , cdng nghe kha. tfiSc ttieo hudng Hanh; (2) CGH khai thac via d i y tmng blnH, CGH da dang cho d c dieu ki«n dia c h i t via d i e nghiSng d i n d i e d i m g tai IVIao K h i Hjnj
^ M ICHCNM S6 10/2016 • CNKT HAM L 6
min^^H
i F
li^'
^
'osmo eCODGO
1
1 MOOED
1400.000
•i 300.000
2 0 0 000 " * ^ *
Pl^l
^ ) •=JCaHi(t%ti,nplM.dica(ng -O-TiflBiinliWflCGH
Thhg.nUwiUc'rlffll
•=>CGHiiinr«)*.mil
£^=^ CCH A % ftdlCfa ((Mig E£2CCH4tngb«v(icUv^ngblnD,hilifhnsMis
•CGN%Mc
, H/nft 3. Tdng /icp d/ln Win sin /uong f/ian CGH tmng TKV
II^K- '^l'^?M ''*'„ "L*':,"'^ ''*-^' "^^ "1°*' ''^" " ' =^'= "'^ *" ™ f'^"' 1° tfa duoc phd duyet ci3a - r f r M?'rru^.K'"^,;!'^'^ " 1 " ' " ! '-^'"' '^^^ ^ ' ^ ('<'^°*"9 630 trieu tin), tr(> luong tap tmng
" Si T i * i .'^^^ .'','1!"'^^'= "'= 1*^' =l^= "9hidng Idn trong pham vi gdc die tCr 20 * 35" dli vdi via _ - din die dung t?i Ving Danh, Ha Long. Mac dO day (152,4 trieu tin, 24,2%) va td 20 + 55" dli J sin luong khai th^c bSng CGH thdi gian qua vdi via day tmng binh (188,Dtrieu tin, 29,86% )
cdn chilm ^l^khlem tin trong ting san luong [1, 2]. Qua dd cd t h l thiy, d l gia tang duoc san - t h ? „ 4 ' " ^ s ." .*?' " " ' ' " ' " I '^"^"3 d l cdng ngh§ 16 cho cOt dai theo phuong phai '• an dunn c r S ^ S TKV^ ^" I'Zf f ^ " " f ' ' ''"""='"" '^"^ P*^"" "' *P " " " 9 '"eo gdc die.
-iigtiir^itTi^k'=:dkr<5:rtX'r 1^ ouic^'-g^' ^'ti^^^r'"'" ^T?
trong bang 1, hinh 3^ g^^ ^ j ^ ,^i ^5. , 1 , ^ ^ ^^ ^^^ 5^. ^^. ^.^ ^^^^
- ^ „Jn on"/, ° . , ,~^"u ^ " ^ " 5 ^ °*'° *^>'' "^^ *'^"S ''"'^'' ''^" 35 * 45" vdi via than day . kh=i * = . ^ T!? i ^'^J'^" ""= ""''="= "'^^S' '"*•= 1^' "^"- VI l u nhu c4c md Hing Qua '* TK t f K ? ! ' * °'"'i *=*' ''^' " ' ^ ° P''"'°"'9' P''^ ° « ><""g (Q"y Chiu), L« Tu 0 Lie Thuy - Jh?°„ J ! " " ' * ^ ' V ' ^ P "'^ '^ =*= "='"3 "3*'« S«"9 (Tu Xuyen) khai thic via day imng binh
» S n n T f - S h ^ w v f 1"J'"^"^ ' • ^" '*'^' '"^"^ ™ '^'^ "=' '* * " "^ 95-1 Sf"". sin luong da ' " . h . ^ . ^ f ? H l ^ Y J ^ * ' 3'^" ""• ^">' "''?"• * 2 ^ ° ° ° ° * 1.200.000 T/nam. Cic md Hoing
^ " ' L / f . h i l ' ? 1 " " ^ °*.'=? ° ' " ' ° . ° " * * ='''™' ''^"g Sa (HI Bic), Ci Son, Hoa Phong, U Lan ( N 1 i * , r L o „ h l ^ A ^ ' i * "H? '^o™*'" "'^= '''^" " " ^ " ° " 8 ) ' V^t'ng Gi= Son (Cam Tuc) khai thac v'^
*'*TrS^rT»l^>!'^lS^".^Z}'^^"' * ' • " ' ?*•= ='*>'• " ' ' ^ " ' ™ ''f'i^" •'SI 1° =ho iCl' 80 - 145m
* h A ^ h l J ? « ^ i - . " L " " ' 8*° 1*° " * " ^^°' ''*"9 cung da cho san luong td 260.000 * 1,200 000
« ' ? ! JKI ' u ' * l ' " " ^ " " " ' ' ' ' ^ P * ' ' = ' * ' ^ ^ * " 8 l y T/nam. Mdt s6 vi dg v l ip dung CGH cdt dai
«Inhtn lch?h° f^ ^-^f=i.»i='=)- T^ng khi dd, theo phuong trong dilu k'on gdc die Idn ta
^^'ntr^ r 1 ° 1 f ^" ' * "f^ ' " = " " " " ^ Trung Quic t h l hien trong bang 2 hUV dona vSn khai th^n ttnh/fAn KA» ..;(» o n . (T .^, , a "="a t -
Tu kinh nghilm trSn t h l gidi nlu trln, cd t h l KHCNM S6 10/2016 * CNKT HAM LO WB huy djng vio khai thSc tinh din hit nim 2015
®"
Thong tin khoa hpc cong nghe m oBing 2. Ting hop kinh nghiim ip dgng cdng ngh$ CGH khai thic dt dil theo phuong trong diiu «s, gdc die via than Idn tgi Tmng Quic [1]
TT 1 1 2 3 4 6 6 7
e
9
//
12 3 4
f e n m d Chieu diy
via (m) Gdc doc via (do)
San luring (tan/nSm) Diiu ki^n via day tnjng binh
Md Tuin Diic - Cue md Hac Cuong- H i c Lonq Glanq
L3o dc Ca - Quy Chau
Md Doanh Cdc Son - Huyen Ban - Quy Chau Md Hong Qua - HuyIn Ban - Quy Chau Md Pho Gia Xung - Quy Chau Mo Xuong Hung - Huy^n Ban - Quy Chau Md Oai Hung - Tao Trang
Md Ly Ti> 6 -Til Xuyfin Md LOc Thiy Ddng- Til Xuydn
2,5 - 3,0 1,5-5,5 2,0-2,8 2,0-2,8 1,2-5,8 1,6-3,0 2,0 - 2,8 1,3-3,6
-
3 4 - 3 7 3 2 - 4 5 3 0 - 4 5 3 0 - 5 0 3 0 - 4 5 3 0 - 4 5 2 2 - 3 0 4 5 - 5 2 4 5 - 5 0
351.000 337.212 600.000 1.200.000
600000 450.000 600000 290.676 576.000
HSLD(tSnl cdna)
10
50 ' 70 •,'' 30 50 40
16,8
Dieu ki^n via diy .:
Md U Lan- Ndi Mdng Md NghiSn Bic- Tinh Thiem TSy Md Vi/ong Gia Son- Tinh Cam Tiic Md HoSng Sa- Tinh Ha B i c
8,0 16,8 13,6-
?3,n 3.2 - 4,4
2 5 - 3 6 3 0 - 4 5 3 8 - 4 9 2 2 - 3 2
900.000 2.529.996
636.000 760.000
,«J
• *
nh#n a\nh, vi$c dp dgng ca gidi h6a dbng bg Id chp cgt dai theo phLKWig cho cdc khu vy^
via than day tmng binh dkn d^y, gbc d6c lan tgi cSc m6 him io thu$c TKV la hodn todn kha thi.
Tuy nhtin. phii h^p vdi kha ndng ky thugt trong nu^c, giai dogn tafoc mat chi d i xuiit mo rOng phgm vi dp dyng theo goc d6c d^n 35° vai vfa ddy. a^n 45° vdi vfa ddy trung binh. 06ng thdi, dk dim bao khai thdc hi$u qua trong dilu k[$n gbc d6c Idn, mpt s6 giai phdp d6ng bO di kem du^c dk xudt thyc hi^n nhu- sau:
1- Giii ph^p gia tang li&n kit gi&a cic din chong di t$o d0 on (Tinh vi chong troi thiit bj
Giai phap ndy thyc chdt nam d k^t ciu thiM bj. Bk img xi> vdi anh hu'dng cua gdc d6c, cac dan ch6ng, mdng cdo trong 16 cha du-ac bo sung cdc kit ciu lien kit tgo thanh mang tyang hS lln nhau, tang he di?n tich tiep xuc vdnh, tn,t cua cdc dan ch6ng, ttr db hgn chi du-ac hien typ-ng troi tnppt theo chilu die. Theo gidi phdp nay, gii>a cdc dan Chong du^yc lien kit vdi nhau bdng cdc kich ching troi (giO*a cac d l ddn d cd vj tri phia tordc va phia sau). kich chong d l {giOa cdc xa ddn ching), giOa dan ching vdi mdng cao duvc lip dgt kich (duoi kich li&n kit vdi d l ddn, ddu kich thong qua xich du-ac gan B H KHCNM S6 10/2016 • CNKT HAM L 6
lien kit vdi thanh ciu mang cao phia trong I6ng 16 chp) de chong troi mang cdo. Ba logi kich liln kit ndy tgo thdnh mpt t l , lien kltmptcgmti>4-' 5 dan ching va thdnh mdng (hinh 4). Giai piiip ndy thyc hipn kha phi biln tgi cac 16 chi? ctr gidi hda khai thdc via co goc die Idn tgi Trung Quic vd mang Igi hi$u qua. Tuy thupc vao diln biln goc die trong 16 chp- ma b l tri s l lu^ng, vj tri cac t l hp-p kich ching trdi, tuy nhidn, 03 dSn ching phia chdn cha bat bupc phai du'p'c liSn kit ching trai, chong d l vdi nhau.
Ngodi ra, tgi cdc khu vyc vfa co dilu H^n than, da try, da vach mem, dk dam bdo hISu qua khai thdc ddn chong lya chpn cin thilt ph^i dyp-c cai tiln v l kit ciu cho phCi h<?p theo c^c hu'dng sau: tdng di^n tich d l vd b l sung kidi ching lun d l dan; xd dan ching dy?c trang bj ca ciu tim chan gyang dgng hai cip, gif"
(1) xa tru-pl d l diy kjp thdi giCr ndc ngay sau khi tang trydc khiu qua (gidm di$n Ip trln) vS (2) tim Chan gyang dgng ban l l de tJ vao m|t gyang ching Id va I§t ra d l giO- ndc khi xdy ra tyt Id nho trydc gyang; dan ching dyp'c bO tri vd dilu khiln tim chin cgnh d ca hai bin d l gitt kin n6c vd thudn lai cho dilu chfnh ddn,...
2. Giai phip giim goc ddc biiu kien Id chtj
W
a.Mdhlnhvi liin kit ching ttdi. chdng dd dan ching bin ngoii mil bing
b. Oil ttit liin kit ching Mi. ching dd din ching. ming cio trong thgc ti Hinh 4. Ti hop liin kit ching trdi. ching ai din ching. ming cio tmng Id cho
a. Sadibi guong khiu chio so vdi phuong via
a - Gdc die via: fi - Gdc die Id cho (ho$c Id thuvng khii diim): y- Gdc kep xiin (ttin mit phing tnj via) giaa Id cho (hoic Id thuong khii diim) vii phuong via: X - Gdc kgp bing giira Id cho (hoic Id
thuc^ng khdi diim) vii phuong via.
y= arcsin(slnp/sina); A. = arcsin(tgp/tga) b. So di nguyin If giii phip chuin hi Id cho theo hudng bin xiin Hinh 5. So di minh hpa giii phip bi tri guong Id cho xiin chio
Trong « l u kl#n goc d i e Idn, n l u b l trf khd khan chn cdng tac khai t h a c D l giam gdc gu'O'ng Id c h v vudng ke vdi au^'ng phu'cng, khi d i e Id c h p n h i m han c h i trdi tnfsrt t h i l t bi theo c i c t h i l t bl CO gid'i hda (dac biet la dan c h i n g so v<H hu'dng d i e via mgt gdc dp n h i t dinh d l It t h ^ ^ L l " " " . ' - ^ ' " ' " " ^ J * " " " " ^ ' " ^ " ° ^"^ "^^ « = " ^ i ^ " " M hen so v ^ gdc d i e se thu'd'ng xuyen tro, t n ^ d v l phia Id c h i n gSy that cua via than. Trend dd chan in chvau^c
(^ 'jr_ ™CNM S6 10/2016 • 0,KT HAM LO • £ •
T h o n g tin khoa hpc c o n g n g h e m o
b l tri t i l n tnrdc de (1) tgo g i c d i e di len theo hydng k h i u { k h i u ngiia), d i n g thdi (2) phgm vi phd hoa cua cdc dan phia d y d i theo chieu d i e se vypft trydc so vdi dan phia tren, qua do se logi bo d u v c hi^n t y ^ n g n y d c chay tu- pha hoa vao khdng gian phia trong va tich tu n y d c tgi g y o n g 16 chg^. Minh hpa bo tri g y a n g 16 cha vd m l i t y a n g quan giOa goc d i e 16 cha, goc doc via, goc kep gi&a h y d n g k h i u 16 chp' vdi d y d n g phyang vfa,... d y a c t h l f i^n tren hinh 5.
3. Giii phip to chuc sa do khiu gu-ang vi trinh tt/ di chuyin din chong
Kinh nghipm dp dyng ca gidi hoa td chp' ddi k h i u theo phyang tgi eac via than ed goc d i e Idn tgi Tnjng Q u i c da chf ra, sa d l k h i u g y a n g trong d i l u k i | n nay kh6ng nfin t l c h y c dgng con thoi (tgo khdm vd k h i u ca hai c h i l u ) , md ch? nen k h i u mOt c h i l u theo h y d n g tCp trdn x u i n g (hinh 6). Cdnh thi>c ndy mang Igi hai hipu qud. (1) mdy k h i u k h i u tir trdn x u i n g tgo phan lyc d i y mdng cdo trdi v l phia 16 thong gio se hgn e h l hi$n typng tr5i mdng cdo vd (2) mdy k h i u trong d i l u ki^n gbc d i e Idn di c h u y i n k h i u g y a n g theo hydng tir & i n x u i n g se tdng d y a c lyc c l t vd t i l t k i | m nang lyp'ng. Ngoai ra, khi k i t thilc mpt l u l n g k h i u , d c h i l u n g y a c Igi khi mdy k h i u di ehuyin Idn d i u 16 chp d l hinh thanh l u l n g k h i u mdi cd t h l k i t hap vet than t i n trdn n l n 16 cha (trydng hap mdy k h i u khdng vet h i t than
n l n trong qua trinh di c h u y i n d t gyang), qua do cho phdp giam d y a c ehi phi nhdn !ye thi/c hi#n cdng tac xOc dpn. K i t qua t h i n g kd thyc 1^
tgi Khe Cham, Quang Hanh cho t h i y , thfirt gian may k h i u di c h u y i n khong tai k i t hap vet nfei trong mdt chu k^ chi t y a n g d y a n g thdi gian chi phi cho edng tac xde dpn phye vg sang mdng vd di chuyen dan chong.
D i n g thdi, de ngan n g y a hipn typing tr6i d ^ c h i n g theo h y d n g d i e , cdng tdc di chuyin ddn c h i n g se dyp-c phan dogn thdnh ti>ng t6 d l di c h u y i n theo t i l n dO sau khi mdy k h i u di chuyin qua. Theo do, dpc c h i l u doc 16 chg ci> 05 ddn se tgo thdnh mpt t l h p p d y p c xde d\nb thtj-tyt^
1 - 5 theo c h i l u tiy d y d i len trdn theo chilu d6c 16 cha. Cdc t l dyp-c di c h u y ^ diM d i l m l l n li/d theo thi> t y tir tren x u i n g . Trong m l i t l , trinh ty di chuyen d y a c t h y c hipn l l n Iyp1 theo hu-iSTig t y d y d i Idn, dan so 1 cd nhipm vy djnh vj khfing e h l cdc ddn phia trdn (hinh 7). Rieng t l hep ddn phia chan 16 chp-, cong tac di c h u y i n ddn du-gc thye hipn theo trinh t y 3 - 4 - 5 - 2 - 1 . Khi do, hai ddn s l 1, s l 2 co nhi^m vy c l djnh phgmvi chdn chp-. Vipc chia t l se lam tang thdi gian dii phi eho cdng tac di c h u y i n dan c h i n g , nhung do phgm vi di c h u y i n nhd nen vi§c qudn IJ kj thudt vd cdn chfnh, c l djnh vj tri, khoang cdch gi&a ede ddn t r y d c va sau khi di chuyin sfi c6 d$ tin cgy cao.
A Ld che diu chu k^:
B. Mdy khiu di xuing khiu t^o khdm diu;
C; Mdy khiu di l&n kit thOc khiu fgo khdm tSk D: Mdy khiu cSt guong theo hw&ng id W"
xuing:
" ^ E: Mdy khiu ch$y khdng tii di l&n, kit hgp i^' nin (niu cin), kit thOc chu ky dt guang
Hinh 6. Sa di khiu guang mdt chiiu
1- Bit diu di ChuySn ddn t6 (S&u m 2 - Kit thuc di chySn ddn t6 dia m:
3- Bit diu di chuyin ddn ti thif hai;
4 - Kit thiic di c^y$n ddn ti thirt«i
Hinh 7 Trinh ti/ di chuyin ddn ching tmng diiu ki^n 16 chi? c6 gdc die I6n i J i l »<HCNM S6 10/2016 ' CNKT H A M L 6
Ch^o mifng 44 nam Ng^y th^nh l|p Vien Khoa hoc Cong nghe Mo - Vinacomin
^^b
4. Giii phip thu hoi than h^ trin va giam gdc
W
doc ph^m vi chan Id chg
Bdc thu tgi cac 16 cha ca gidi hda hg trln Id tinh ti^ng 16 ehp- sau khi ket thiJc edng tdc thu hii mi>c dp I n 6\n\\ kem han nhilu so vdi thdi dilm kit thuc khiu gyang {chu-a tiln hdnh thu hii). Nguydn nhdn la do trong qua trinh thu hoi, trln than phia pha hoa khi sdp do thydng keo lln v l phia xd ndc cua dan, lam giam di^n tich tilp noc cua xa, fe-ong dilu kipn gdc doe Idn, dudi ddn d§ bj trdi theo chilu die. Giai phdp dyac d l xuit trong tm-dng hp-p nay la tdng tien dd thu hii
(thdng ttiu-dng khoang 02 tiln dO khiu mdi tiln hanh thu hdi). Bing cdch ndy, chilu ddi theo phycmg khii than thu hii phia phd hda tdng Idn, qua do hgn c h i dyp-c hi$n typ-ng Id- lln ndc vd duy tri sy on djnh cho ddn ching Id chp'. Tuy nhidn, bu-dc thu hoi tang cung cd nhyp'c dilm la tang ty Id t i n thit (nam d nen Id phia pha hda dli dipn dudi ddn, bdn dydi dydng gbc truvt Id ty nhien eua than bd rdi), ding thdi, d l rut ngan thdi gian thu hii, nang suit vgn tai cua mang cao sau se phai tang Idn, di cung vdi dd, edng suit dipn, kich thydc, khii lyp-ng vd ehi phi diu
Hinh 8. Sa dd chuin bi Id chg kiiu ngang. nghling Hinh 9. Ca du trii' luang cd khd nSng CGH theo dirimg hudng die via theo chiiu diy vd gdc die
Bdng 3. Mdt s6 lo^i ddn ching ip dung bong diiu ki$n gdc die Id che Idn
TT
1 1 2 3 4 5 6 7 II
1 2 3 4 5 6
/
BMS ht%u
Chiiu eao ching giir
(m)
Til trgng cho phip (KN)
Hinh trinh (mm)
Trgng lirgmg (tin)
'It s
O 2S Nu^sin xuat Din ching h? trin
_ ZF5800/18/2e ZF7200/22/35 ZF3800/16/26Q ZF4800/16/32Q ZF6600;17/2SQ ZF3800/16/26Q ZF4800;i6/36Q
1,8*2,8 2,2 • 3,5 1,6*2,6 1,6*3,2 1,7-2,8 1,6*2,6 1,6*3,2
6.800 7.200 3.800 4.800 5.600 3.800 4.800
630 800 600 600 600 700 600
20,0 23,0
- -
13
-
17 S40 S40
£45 S45
£45
£45
£45
Trung Quic Trung Quic Trung Quic Trung Quic Trung Quic Trung Quic Trung Quic Din chinq khdng ha tran
ZY3200/14/34 ZZ4000-17/35 ZQY30O0-14/32
ZZ4000-17/35 ZYJ3200-14/32 MPVS3000 OSTROJ 14/24-320 OSTROJ 14/24^0 K
1,4*3,4 1,7*3,5 1,4*3,2 1,7*3,5 1.4*3,2 2,0 * 3,5 1,4*2,4 1,4*2,4
3.200 4000 3000 4000 • 3200 2.980
- -
700 600 700 630 600 800 700 700 KHCWl
12,5 13,9 12 13,9 11,5 16 8 4 SO 10/2016
£35
£35
£55
£35
£55
<45 60 60
* CNKT HAM Tnjng Quic Trung Quic Tmng Quic Trung Quic Trung Quic
SEC Ba Lan Ba Lan
131
©^
W "
Thong tin khoa hpc cong ngh6 mo
hf mdng cdo cung cac thilt bj khdc trong day tmyln vgn tdi cung tang theo tyang iing.
Ngoai ra, trong dilu kidn via day, goc die Idn CO thl thyc hipn giai phdp chuin bj 'ngang, nghiing theo duong huvng die via". Theo do, 16 vdn tai cua 16 cha dy^^c dao bam vach, Id thong gio ddo bdm tiii. Lo thyang khdi dilm tu- Id van tai se ddo mot dogn bang (eua mlm) ty vdch ve phia tru via, sau dd di bdm tnj vd nli thdng len 16 thdng gio. Vdi cdch chuin bj ndy, doan 16 cha gidp phia chdn co goc doc gin nhy nam ngang, cdc dan ehing trong pham ndy se khong bi troi tnfot, hdn kit I n djnh t i t vdi nhau tgo thanh dilm tya khdng cho cdc dan ching, mang cao phia trdn trdi xuing phia Id dpc vgn tai. Trinh ty thu hii tgi phgm vi 16 chg- nim ngang phfa chdn dyac thyc hipn theo hydng tu- tren xuing d l dam bao sy I n djnh, cae phgm vi khac thu hoi theo hu-dng tu- dydi len de tang hipu qua. Chi tilt xem hinh 8.
Trdn ca sd kmh nghidm thyc tiln ap dung cdng nghi CGH ding bp Id cha cOt ddi theo phyang trong dilu kipn gbc die vfa Idn tren thl gidi vd cdc giai phap ung XLF dyac trinh bdy d trdn, nghien cdu [1 ] do Vipn Khoa hpc Cdng nghp Mo thyc hidn (xde (^nh dyac ting try lyyng c6 kha ndng dp dyng CGH khai thdc theo edc logi hinh dilu kipn via trong phgm vi ede dy an him 16 da dyac phe duydt cua TKV Id khoang 230 tripu tin, hinh 9), dd chf ra dyac thdm 63,0 tripu tin via day tmng binh din ddy, die ty trdn 20 * 45" c6 thl dp dyng CGH ding bd 16 cha cOt dai
theo phyang so vdi k l hoach cua cdc dv an (153,5 tripu tan). IVIpt s l logi dan ching dixult dp dyng cho diiu kien gdc die Idn xem bangs
£)e tang ty trpng san lyang than ham 16 khai thac bang ca gidi hda cua TKV, vipc diy mgnh dp dyng CGH ndi chung, md rpng phgm vigoc die cua cdc sa do edng nghp CGH cpt dai theo phyang cho dilu kien via day tmng binh den day, goc die den 45° ndi rieng Id cin thiet va t^i ylu. Trong dilu kipn ngdnh md \flpt Nam cm hgn chi v l kinh nghiem vd nhieu bd ngd trong CGH Id chp- dai tgi cdc khu vyc vfa than c6g6c doc Idn, cac d l xuit i>ng xy vd mpt s l loai ddn ching neu tren se la thdng tin bo idi cho cdc dan vj khai thac than him 16 trong qua trinh tilp cgn vd xay dyng chyang trinh triln khai dp dyng. Tuy thupc vdo ^ l u kipn thyc t l , qua frinh dp dyng e6 t h l lya chpn mpt hay kit hgp nhi^u giai phdp va phai dyp-c nghidn cO-u, tinh toan kJ lydng trydc khi then khai./.
Tii //du tham khao:
1. Bang Thanh Hdi (2016). Phat triin ipdijng cogidihoa diold va khai thic tgii cic mdhkm^
vCing than Quing Ninh giai do$n 2013 - 2015, li trinh den nam 2020, Vipn Khoa hpc Cing ngh^
Md- Vinacomin.
2 Dy an diu ty xdy dyng edc mo him 16 vung Quang Ninh, Cdng ty Co phin Ty vlnBlu ty Mo va Cdng nghipp.
3. Bdo eao khoi lyang mo cua TKV tCr nim 2000-2015
Study on some solutions for enlarging the application field of the folly mechanized longwall mining technology on strike at underground coal
mines belonging to Vinacomin
Dr. Le Due Nguyen, MSc. Dinh Van Cuong, Dr. Dao Ngoc Hoang Institute of Mining Science and Technology - Vinacomin
Sumary
So Jar a «,nie coMries on Ihe worid. such as Chino and Russia. Ihe fiilly mechanized longwall miniH I'chnolos: on strike has been siKcessfitlly 10 Ihe geological conditions ofthe medium coal seams wUhlhe^
TIZ •*" J^' r " ' ° f f "''"''"'"''"™' ""•"' * ''*' '^Sk ofJS- - 45' mined with the lop ad tZlTl^^ ^•^""^'J^'" " " « "'"ve mentioned opplicttlions has shown that, the application of ll>
CL7f,^"'f°T T''i'^''''"°'°^'"'''-'l'''"''^'"'''t^lo'hickco^
tcZtTZi', T " , ""«'"« " ^•"-"""'" ••^f^osibh. However, in accordance with fhe domtm dir^l ^n^-Z': '^u^- '!, " " ' " f ^ ' " '"''•^' '" '•PPli'^'-'tot field to the thick coal seams with * ayaigle of 35' and to Ihe medium coal seams with Ihe dip angle of 45'.
^ B W H " r a s 6 10/1016-CMCTHA.MLd
