KHOA HOC VA CftNG NGHE MO
y AP DUNG Ld KHOAN DAI VOTl KIP NO MIN VI SAI PHI DIEN
DE TANG CHIEU CAO PHAN TANG TRONG KHAI THAC cnc vin onv DOC ini CONG TV THAN DONG VONG
PGS.TS. T R A N V A N THANH, TS. NGUYfiN PHI HUNG Tru<mg Dai hgc M6-Dia chat KS. NONG VIET HUNG - Vien Khoa hgc Cong nghe Mo
• ' l i r o n g nhu-ng ndm qua, Cdng ty Than Ddng I Vdng da triln khai dp dyng cdc sa d l cdng
^ nghf Id dpe via phdn ting, sa d l cong nghf khai thdc chia ldp ngang nghieng, khdu than bang khoan n l min, ching giif guang khai thac bing gia thuy Iyc di dfing hogc gid khung di dpng, Qud trinh dp dung cho thiy, v l ea ban cde sa d l cdng nghf khai thac nay nay da gial quylt dugc vin d l khai thac via ddc tgi C6ng ty,
Tuy nhien, vifc dp dung giai phdp n l min bang kip ^ f n vi sai trong Id khoan nhd hien nay c6n nhilu tin tgi anh huang din hifu qua khai thac nhu edng tdc diu nil mang nd phuc tgp, df bd sdt Id min; dp bin ddy ddn dien cua kip thap nen hay xay ra hifn tugng dut day, ddn din sy c l min cdm; thdi gian diu nli mang n l ldu vd tiln dp n l ngdn (<3 m) nfn ehua ndng eao duac chilu cao phdn tang khai thac, Iam tang chi phi met Id chuin bj din din ndng suit lao ddng va san lugng than khat thac thip.
Hifn nay, cae mo than him 16 tgi Viet Nam va tren thf gidi dang dp dung rpng rai cdng nghe n l min sO dyng kip vi sai phi difn trong vife dao cdc dudng 16 trong da (m6i trudng khong e6 khi vd byi no) vd eho kit qua t l t nhu ndng eao tie df ddo 16 vd an todn Iao dgng.
Tgi Ba Lan, Trung QuIe..,, da sLf dyng kip n l vi sai phi difn an todn cho dilu kifn khai thac via day, die va mang Igi hieu qua cao nhu ndng chilu cao phan ting khai thae tu 2,5^3,0 ldn, giam ehi phi met 16 chudn bj (tu 2^3 ldn), giam chi phi bao vf, ching xen 16 chuin bi, nang cao nang suit lao dfng.
Chinh vi vgy, vife ap dung giai phap n l min si>
dyng If khoan dai vdi kip nd min vi sai phi difn an toan him Id d l khai thde cde vfa than day die tgi Cdng ty than Ding Vdng ndi rif ng vd cdc md hdm Id VOng Quang Ninh nfi chung la rdt cin thiet.
CONG N G H I | P M O sd 5 • 2014
1. Nghien CLPU dp dung giai phap n l min su*
dung Id khoan dai (hoac trung binh) vd'i kip n l n &
vi sai phi dien d l nang cao phan tdng khai thac Viec tang chilu eao phan tdng khai thac Id yly td quylt djnh d i n v i n d l nang cao nang suit, c6r|
suit Id ehg, giam chi phi met Id chudn bj. « Xdc djnh thfing sd chilu cao phdn ting khai thdc gidi hgn d l khai thdc cd hifu qua bing sd (l|
c6ng nghf 16 dpc via phan ting la giai bdi t o d d f ^ quan d i n cdc thong s l dilu kifn tu nhifn v d "
thugt, Dilu kifn ky thuat t h i hifn d cae th6ng's6 eua he thing khai thae, khd nang ching giii guofl^
khai thac va kha nang Idy than hg trin tu vj tri s|p dd. Cac ylu t l ty nhien nhu dilu kifn dja chlt-ky thugt eua vfa than: chilu day, gdc ddc, tinh chdt dit dd xung quanh vfa, tinh chit via than, cdc dilu kien kiln tgo... da dugc xdc dmh va rdt khd thay dli.
Trong thdi gian qua, d l hg trdn than, C6ng ty da sii dung may khoan con d l khoan 16 khoan vdi chilu sdu tdi 5 m, n l min bing kip nd vi sai di§n an todn vdi thule n l AHI. Mac du phuang ph^p ndy mang lgi hifu qua nhit djnh nhung con nhilu ton tgi anh hudng d i n hifu qua khai thdc nhu cong tdc diu nli mgng n l phuc tap, d f bd sft Io min; dO bin ddy ddn dien cua kip thdp nen hay xay ra hi$n tugng dut day, ddn d i n sy c l min cam lam tran than khdng dugc phd vd; thdi gian diu nli mgng n l lau va tifn df nd ngdn nen chua ndng cao dug*
ehilu cao phdn tdng khai thde, lam tdng chi phi met 16 chudn bj, nang suit Iao dpng va san lugng than khai thdc chua cao.
D I khde phye t i n tai nay, d l xuit su dyng:
• Khoan Id min bdng may khoan lo khoan sau (VPS-01) chgy bing hf thuy lyc;
• Ngp nd min bdng kip nd min vi sai phi di^n an toan him 16 vd thule no AHI,
KHOA HOC VA C O N G N G H I M 6 Vdi thilt bj mdy khoan hifn nay cd kha ndng khoan vdi chilu dai Ian (mdy khoan logi VPS-01) vd vifc dp dyng kip n l min vi sai phi dien an toan hdm 16 thi chieu cao phan ting khai thdc dao dfng trong khoang 15,0-^20,0 m se cho cde chf tif u kinh t l ky thudt tdt va hf s l khai thac tuang ddi eao.
Theo kinh nghiem dp dyng tai vfa 13-2 Xi nghifp than Ha Rang, viec dp dyng kip nd vi sai phi difn an todn vdi uu dilm Id df bin day ddn Idn, da tang dugc kha nang ngp sau cua kip trong cdc Id khoan hg trin len tdi han 7,0m so vdi chl tu 3-^3,5 m khi su dyng kip difn trudc dd tgi md, logi bo 6uac hodn todn hifn tugng min edm do dirt day din, tdng hieu qua pha n l va kha nang sap d l eua trdn than, tu dd nang cao dugc hifu qua thu hdi va giam duge ehf tieu t i n thit than tu 33 % xuing ehl c6n khoang 24 %.
H. 1. May khoan kiiu dung VPS-01 chay bing rtf thuy li/c
H.2. CSu fgo kip vi sai phi dien an toan him to Dk dilu khiln (chia dp lyc) may khoan dung bdn dilu khiln NOVA 13 c6 cae cdn va thao tdc bdng tay theo cdch diy Ifn hodc keo v l , tuy theo
hudng <^nh dieu khien. D f cung cap nguon dgng Iyc thuy Iyc eho todn bd cym thilt bj khoan, phuang dn lua chpn sii dung tram bam thuy iuc AG-16/63Z.
• Kip vi sai phi ^ f n an todn him 16 Kip vi sai phi difn an toan him If c6 clu tgo gIm thudc chdy chgm, thule khdi n l duge djnh vj trong vd hinh try bing kim Ioai. Toan bfi phdn dng kim logi dd nhii thule dugc gdn vdi mpt ddy ddn tin hifu n l th6ng qua mft nut cao su vd dugc kep chat bing dung eu chuyen dung.
Bang 1. Dac tinh ky thuat li/a chgn cua kip vi sai phi di$n an toan
TT 1 1 2 3 4 5 6 11 1 2 3 4 5 6 7 3
Thong so l<y thuat D§y d§n tin hieu no Difd^ng l<inh nqoai Toe 66 din n6 DO b§n kSo ciJa d3y Chi^u diii day IVIciu s^c day '^' Mdu s3c nhan kip vd moc ChO' J '^' KIpnd
Vat lieu Idm vo kip " ' ChiSu ddi vo kip Du'P'ng kinh nqodi kip Cu'&ng ao n6 QO ben mdi qh6p miOnq Kha ndnq chju rvj6c S6 kip vi sai Th&i gian vi sai
Dan vi mm m/s KG m
- -
mm
-
mm KG
-
gift ms
-
TrjsO 3,0 21700
225 2*300
- -
52+62
-
max 7,1 sA8
2,0 8 10 25+400 Ghi chu: 1 - Mau i3d; 2 - l^au da cam; 3 - Dong Mo.
•> Phuang phdp nap va n l min trong cac Io khoan dai
De nap min trong cac 16 khoan dai, ngudi ta su dung thuic no dec va thilt bj nap ehuyen dung chay bing khi nen, Trong dilu kifn Vift Nam, do chua chl tao dugc thuoe nd deo dung trong him 16, nen cong tac ngp min trong eae 16 khoan ed ehilu dai ldn vin dugc thue hien thu eong bdng edc gfy nil, thuoc n l su dyng la cdc thoi thuic n l nhu tuang 16 than, c6 chilu dai moi thoi la 0,2 m,
Trong dilu kifn c6ng nghf khai thdc 16 dpc via phan tdng, df xuit nap thuic vd bua pha no phdn than noc trong cac lo khoan ddi theo phuang phdp thu cong bing eae ggy nil bdng Ing nhya, O l djnh vj thoi thule n l trong lo khoan trong qud trinh ngp, moi thdi thule trudc khi ngp se dugc thit chft bdng 1 sgi "day ruf nhua, phin thua eua ddy sau khi thit se tgo lifn kit giu'a thoi thuic vdl thdnh i l sau khi
CONG NGHliP MO S6 5 - 2 0 1 4
KHOA HOC VA CONG NGHE MP
phia mieng 16 khoan. Phuang phap nay da dugc su dung tai Xi nghifp than Hd Rang va cho kit qua tlt, khdng xay ra hien hjgng rai thoi thudc khdi Id khoan.
Chi tiet thyc hifn xem hinh H.3.
Tren ca sd nh&ng giai phdp de xudl, tiln hanh lap bieu d l to chiJc chu ky vd b l tri nhan lyc khai thac Id chg phiJ hgp vdi nhung giai phap d l xudt, dong thdi tinh toan sa bg cac chf tieu kinh t l ky thudt dat dugc cua cong nghe sau d l xudt so vdi cdng
nghe cu tai mpt dilu kifn cy the (Bang 2, Bang 3). H.3. Chi tidt thoi thudc nd dupc thit chat bang da^
dut triKfc khi nap: a - Diy ait duxyc thit chait vdo thoi thudc; b - Day rut sCe dijng trong cdng ngb0^
MATCATA-A
H.3. Hd chiiu khoan nd min Id khoan dai sCr dung kip vi sai phi dien trong sa dd cdng nghe khai thac Id doc via phan ting
PA
H.4. Ho ChiSu khoan nd min Id khoan dai su' dung kip vi sai phi diin trong sa dd cong nghe khai thac chia l&p ngang nghieng
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CDNB NGHllP MO sd 5 - 2 0 1 4
KHOA HOC VA CONG NGHE MO
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Bang 2. Biiu di> to chirc chu ky khai thac 16 doc via phan ting
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" "" ' " " H Bang 3. Bieu do td chirc chu ky khai thac 16 cha chia lop ngang nghieng (khai thac ddng thai hai phan ting)
Bang 4. BSng chi tieu kinh ti-ky thuat cua cong ngh^ khai thac lo DVPT sau de xuat so vai cong nghe
;u (2 phdn ting khai thac ddng thai) TT
1 2 3 4 5 6 7 8 9 10 11 12 J l . 14
TSn chl tiSu Chidu ddy via trunq binh G6c ddc via trunq binh
Chidu cao nqhienq phdn tdnq khai thdc Chieu cao nqhienq lo-p than hg trdn Trpng lu-ong the tich cua than He s6 kien c6 cua than Tidn do chu k^
SO ca hodn thdnh mot chu ky He s6 hodn thdnh chu ky So ca Idm vide nqdy dem Sdn luQ-nq khai thdc mOt chu k-i- Sdn lu-o^nq khai thdc mpt nqdy dem San lu-onq khai thac 1 thdnq COng suat khai thac fNhdn Ivc khai thdc 1 nqay dOm
tenq sudt lao aonq cong nhan 10 Cher
•Phi phi thudc no cho 1000 T K h i phi kip nd cho 1000 T
tell phi li«Sfi thOp cho 1000 T few Dhl mdt 10 chuan bi cho 1000 T 2 U Chi Dhl m « khoan cho 1000T
• W T O n th^t cOno nahS
Gh i chl); ) - CN m&i sau khi ap dyng giai phap de Ban vj
m ao m m T/m3
f m Ca Ca
-
Tdn T/ng- a T/thang T/ndm Ngu'o'i T/cOnq Kq Kip Kg m m xuit
%
'"•i;,;:;',;^-«S!-s«B^B » CNcu
• 3,0 63 11,0
8,5 1,63 1 + 2 1,6
3 0,98
3 121 99 2.458 29.000 - 30 •
3.0 • ! 118 - 296 301 45 364 38,5
CN m * i ' "
3,0
••-••<}^>s" 6 3 17,0 15,5 1,63 1 + 2 1,6 3 0,98
3 184 131 3.285 39.416 - --ao-' •
• - ^ 4 , 4 ' • 130 I - . 1 6 3
196 28,6 560 21,12
C0NGNGHI|PM6S65-2OU
KHOA HQC VA CONG NGH| M O
Sdng 5. BSng ch! tidu kinh ^kp thu$t cua c^ng nghd khai thac chia I6p ngang nghieng sau de xuit so v6i cdng ngh$ cu (2 phan tang khai thac ddng than. (Ghi chu: 1 -CN md'i sau khi ap dijng giai phap de xuat)
1- h-
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 / 18 19 20 21 22 23 24 2b 26
Ten chl tieu C h i l u day vfa trung binh G6c doe via trung binh Chieu cao phdn tdng khai thac C h i l u cao Idp than ha tran Goc d i e Id c h a ngang nghieng S l phan tdng khai thac ddng t h d i Trpng l u g n g t h i tich cua than He s l kien e l eua than Tien do ehu ky
So ca hodn thdnh mot chu ky He so hoan thanh chu ky So ca lam v i f c ngay d e m
San l u g n g khai thac mdt chu ky (1 phdn tdng) San l u g n g khai thde mdt ehu ky cua khu v u c San l u g n g khai thac m f t ngdy dem (1 phan tdng) San l u g n g khai thac mgt ngay dem cua khu v u c San l u g n g khai thac 1 thang
Cong sudt khai thac Nhdn Iyc khai thac 1 ngay d e m Nang sudt Iao d f n g cong nhan 16 c h a Chl phi t h u f c nd cho 1000 T Chi phi kip n f cho 1 0 0 0 T Chi phi l u d i thep cho 1000 T Chi phi met 16 chudn bj cho 1000 T Chi phi go cho 1000T
Tdn that eong nghe
D a n v|
m do m m D o T/m3
-
f m Ca Ca
-
T i n Tdn T/ng- d T/ng- d T/thdng
T/nam N q u d i T/c6nq Kg Kip Kg m m^
%
S 6 lu-ong C N c u
8,69 60 12,2 10,0 15
3 1,69 1 + 2
1,6 6 0,95
3 235 7 0 5 134 4 0 2 9.833 118.000
90 4,6 108 241 4 0 9 . 6
22,8 50 32,3
CN m o i I'l 8,69
60 17,0 14,8 15
2 1,63 1 + 2 1,6
3 0,95
3 326 653 232 465 11.625 139.496 ,
60 7,7 121,8 264,7 196 15,6 12,2 25,6 3, Kdt lu|in
Kdt qua tinh todn so bO cdc chl tieu kinh td-ky thugt cho aidu kien via cu thd cho thdy: viec dp dgng cdc cac giai phap ky thuat tien tidn (dac biet giat phap si> dung may khoan 16 khoan ddi va kip nd min vi sai phi aien an todn hdm 16) so voi cong nghe khai thac cu c6 the mang lai hieu qua hon han (ndng cao phdn tdng khai thdc len 15*20 m, cpng suat khai thac, nang sudt lao aong; chl tieu tdn thdt than Sunfc cai thien). TCr ktii dugc cdp phep si> dgng trong san xudt vd dp dung thii nghiem tai mo than Bdng Vong, Ha Rdng, Nam Mdu, Hdng Thai... cho den nay kip n6 min vi sai phi dien da va dang tridn khai ap dgng tai nhieu mo khac nhu-^tai: Cong ty than Nam Mlu, Hdng Thai...
Do d6, de tang san lu'ong khai thac, giam ton that than vd chi phi met 16 chuin bi khi dp dgng cong nghe khai thac cdc via than day, ddc thi viec dp dgng cac giai phap de xudt o' tren la rdt can thidt.D
TAI LI|U THAM K H A O
1. COng nghO khai thdc Id dpc via phdn tdng cua
COng ty than Hd Rang, Cong ty than Ddng Vong.
2. Trdn Van Thanh. Bdi giang COng ngh^ khai thac tien tidn, ddnh cho hoc vien sau dai hpc. H^
NOi. 2003.
3. 86 tay torn tdt cua can bO ky thudt mo. Nhi xudt ban Khoa hoc va Ky thuat. Ha NOi. 1974.
4. Trdn Van Thanh, Vu Oinh Tidn. COng ngh{
khai thac than hdm 16. Nha xudt ban Giao thong van tai. Ha NOi. 2005.
Ngu'di bien tap: Vo Trgng Hung
"non-electric detonators ii^
leep geams in Dong V6nn plays a considerable part ii:
tificatfon mining, reducing sasing longwall production St of meter standard mine.
CANG NGHlfP MO S6 5 - 2 0 1 4
