Thong tin khoa hoc cong nghe m o
^ 0 1 MOfI CONG NGHE N H A M NANG CAO HIEU QUA VA MUU DO AN TOAN TRONG KHAI THAC VJA DOC TAI CAC MO HAM LO VUNG QUANG NINH
In 2015, Hong Thai coal company had coordinated with Institute of Mining Science and Technology (IMSAT) in studying and applying the diagonal longwall mining technology with using the flexible shield ZRY 20/30L replacing to the traditional support matenals to Increase the safety level and labor productivity and to decrease the coal losses. In this paper the authors refer to the mining actual activities of over 4SP Inclined coal seams at Quang Ninh underground coal mines as well as to evaluate the results from the application of the diagonal longwall mining technology with using the flexible shield ZRY20/30L to the medium coal seams having the dip angle over 45° at Hong Thai coal company and the possibility of its application to other underground coal mines having similar mining conditions
TS. o A o H O N G Q U A N G ThS. TRAN T U A N N G A N Vi$n Khoa hoc Cdng ngh( Md - Vinacomin
ThS. T R A N V A N C O N G Cong ty than Duong huy- TKV Bi§n tip: TS. Truvmg Duv Dip
i . M o ' d i u
Hien nay, d l khai thac via die, cac mo ham 16 vung Quang Ninh dang ap dung mot so loai hinh cdng nghe, gom: (1) Co gidi hoa d6ng bp sy dyng to hop dan chong 2ANSH: (2) Cong nghe khai thac 16 dpc vfa phan tang; 16 doc via phan tang xien cheo; (3) Cdng nghe khai thac 16 chg' chia lop ngang nghieng; (4) CSng nghe khai thac cac 16 cho dang buong, opt hoac dao 16 lay than.
Viec ap dung cac loai hinh cong ngh$ neiy da giai quyet phan Ion nhyng kho khan trong khai thac via doc, gop phan khai thac toi da tai nguyen va giam ton that than. Tuy nhien, doi vol cong nghe khai thac sy dung to hp-p dan chong 2ANSH, do chi phi d^u ty day cliuyin thiet bi c6n kha Ion, doi hoi khu vyc ap dung c6 try lyong du Ion va t$p trung, nen hien t^i cong nghe moi chi dyoc ap dung a hai mo Mgo Khe va Hong Thai. Doi v6'i cac so d6 cong ngh$ khai thac sy dung khoan n6 min nhy 16 doc via phan tang (hoac 16 dpc via phan tang xien cheo), chia lo'p ngang nghieng, bu6ng cgt vi dao 16 iSy than cho san lygng va nSng suat lao dpng con thap.
Ngoai ra, cac loai hinh cong ngh$ nay con mpt so ton t?i, nhy tdn that than Ion, chi phi met 16 chuan bj cao, trong khi dieu kien lao dpng con nang nhoc va tiem an nguy co mit an toan. Do do, viec doi mo'i cong nghe nham nang cao hieu qua va an toSn de khai thac cac via doc la rat
c4n thiet.
Nam 2015, Cong ty than H6ng Thai - TKV da phoi hgp vol Vien Khoa hoc Cdng ngh$ Mo - Vinacomin nghien cyu va ap dung thanh cong cong ngh0 khai thac Id chg xi^n cheo, ch6ng giO' bang dan chong mem ZRY20/30L. Npi dung bai bao nay, cac tac gia tong hgp hien trang khai thac cac via doc tren 45° tai cac mo him 16 Quang Ninh; danh gia ket qua ^p dung c6ng nghe khai thac 16 chg xiSn cheo sy dung dan ch6ng m i m ZRY20/30L trong dieu kien via dSy trung binh, goc doc tren 45° tai Cdng ty than H6ng Thai va nghien cyu mo rpng ap dgng trong cac md ham 16 vung Quang Ninh.
2. Hien tr^ng khai thac cac via ddc tren 4S0 t^i cac mo h i m 16 Quang Ninh
Theo th6ng ke, hdng nam, san lygng tip cac cong ngh$ khai thac via d6c tren 45° khoang 4 tri?u tSn, chilm 19% trong tong san lygng khai thac ham 16 cua TKV, trong do, tham gia nhilu nhlt la cong nghe khai thac 16 dgc via phan ting va chia 16'p ngang nghiSng, chilm 12,4%, tilp d6, cong ngh? khai thac dang bu6ng c0t chiem 3,7%, dao 16 lay than chiem 2,1% va 16 ch? cc gidi hoa sy dung dan chong 2ANSH chilm 0,8%. Hi$n tr?ng cac cong ngh? khai thac, nhU' sau:
- Cong nghe khai thac 16 cht? ca giai hda dong bo sO d(ing to hap dan chong 2ANSH:
- Cong nghe khai thac dygc triln khai ap
dgng t d nam 2008 d Mao Khe va Hing Thai, 6h khai thac cac vfa than c6 chilu day t d 1,2 •?- 2,2m, goc doe tren 45°, biln dpng chilu day va gdc d i e du-di 35%, da vach, da trg via on djnh trung binh d i n I n djnh. K i t qua dat du-gc sau thdi gian ap dgng: san lu-gng binh quan dpt 65.000 tin/nam (cao nhit dgt 96.325 t i n nam 2013 tai Cong ty than Hing Thai), 200 + 400 tin/ngay- dem, cao g i p 2-^3 Ian so vdi c6ng nghp khai thac 16 dpc via phan ting; nang suit lap dpng trung binh 5,0 tan/eong, cao han so vdi cong nghp khai thac thu c6ng tnj-dc day t d 1,5 -i- 1,8 Ian; chi phi met 16 chuan bi t d 6,0 ^ 6,7m/1000 t i n ; ty Ip t i n that 8,0% ^ 14%. Uu diem cua cong nghp la nang cao mdc dp an toan, giam ton thIt tai nguyen, nang cao nang suit va san lu-gng khai thac, cai thipn dieu kipn lam viec cho ngu-di lao dpng trong khai thac via die. Nhu-gc diem cua cong nghe la chi phi d i u tu- cua day chuyen thiet bj Idn; 16 chg phai chuyin dipn nhilu, n l u cong tac khai thac va chuan bj khong hai h6a, cong suit 16 cha kh6ng cao; kho khan trong qua trinh dao va giO- hau 16 thu-gng. Ngoai ra, do dilu kien ap dung khit khe, chi phu hgp vdi via c6 chilu day 1,2 -^ 2,2m, khi vfa bien dpng c6 chieu day Idn han 2,2m, trong qua trinh khau, phai d l l^i phIn than nen ho'lie noc 16, d§ gay tut Id, tach lap hope tru-gt n i n , gay kh6 khan eho cong tac chong giu- va khai thac 16 chg.
- Cdng ngh$ khai thac Id dgc via phan tang va Id cha khai thac chia lap ngang nghieng:
Phu hgp ap dgng khai thac cac via than c6 chieu day den 6,0m, goc doc tren 45°, da vach, da tru via c6 tinh chit bit ky, via than tu-ang d l i I n dinh theo phu'ang via. Thyc te ap dung cho thiy, cong nghp eho san lu-gng 16 chg thIp, dat t d 25.000 -^ 35.000 tIn/nam; nang suit lao dpng 2,5 -;- 3,5 tin/eong; chi phi 16 chuIn bj 30 -^
35m/1000 t i n ; ton thIt than 30 ^ 40%. G i n day, mpt so mo nhu'- D6ng Vong, Nam M i u , Ha Rang da phoi hgp vdi Vipn Khoa hpc Cong nghp Mo nghien cdu ap dgng giai phap n l min trong cac 16 khoan dai sd dung kip vi sai phi dipn d l tang chilu cao phan tang nham tang cong suit, nang suit lao dpng, giam chi phi met 16 chuIn bi va giam t i n thitthan. K i t qua mpt so chi tieu chinh cua 16 chg tang dang k l : nang suit lao dpng t d 4-^5 tIn/cong; t i n thIt than c6n 21 % -^ 24%. Tuy
nhien, thilt bj cho cong tac khoan nap no min ehu'a dong b$, nguin cung d p kip vi sai phi dipn c6n han c h i , gia kip e6n Idn {gap 1,5 lln so vdi kip dipn) nen giai phap chua du'gc nhan rpng cho cac mo ham 16. De dan gian hoa quy trinh khai thac, giam bdt dau tu' trong dieu kipn via co nhieu bien dpng theo phu'ang va hu'dng d i e , mpt so mo da ap dgng cong nghp khai thac 16 dpc via phan tang xien cheo. V l ca ban, sa do cong nghp du'gc chuan bj taang t y nha khai thac 16 dpc via phSn ting. Tuy nhien, cac 16 dpc via phan t i n g du-gc dao xien cheo; gu-ang khIu than daac ching gid va khai thac tyang ty nha khai thac buong 16 thu'gng cheo. Cong suit khoang 30.000 ^ 40.000 tIn/nam; nang suat lao dgng 3-^5 tln/c6ng; t i n thIt than 30% ^ 35%.
Cong nghe 16 dpc vTa phan tang co U'u dilm la dan gian, linh hoat, thich dng t i t vdi dieu kipn dja chit phdc tap, chi phi d i u tu- nho. Tuy nhien, nhu-gc dilm la cac chT tieu kinh te ky thuat dpt du-ge e6n han che nhu- san lu-gng va nang suit khai thac thap, ty Ip t i n thIt va chi phi met 16 chuIn bi Idn. Ngoai ra, cac du-dng 16 dpc via phan tang anh hu-dng qua lai Ian nhau gay nen, lun, lam tang chi phi chong xen.
D l i vdi c6ng nghe khai thac chia Idp ngang nghieng: Cong nghp nay du-gc ap dgng h l u hit trong cac mo h i m 16 cho via co chieu day tren 6,0m, goc doc tren 45°, da v^ch, da trg co tinh chat bat ky. San lu-gng t d cac 16 chg dat 25.000 -;- 75.000 tan/nam; nang suit lao dpng 2,5 -^
5tln/c6ng; chi phi 16 chuan bj 15 ^ 35m/1 OOOtIn;
ton thIt than t d 25% ^ 35%. Uu diem cua cong nghp la dan gian, linh hopt, thich dng t i t vdi dilu kipn dia chit phdc tap, chi phi d i u ta nho.
Nhu-gc dilm: san lagng va nang suit khai thac thIp, ty Ip ton that va chi phi m6t 16 chuan bj Idn.
- Cdng nghe khai thac buong Id thuvng:
C6ng nghp ap dgng pho biln d cac mo ham 16 vung Quang Ninh cho via than co chieu day bat ky, g6c die tren 45°, da vach, da tm co tinh chit bit ky. U'u dilm cua cong nghp eho nang suit lao dpng cao t d 3,5 ^ 5 tIn/eong; eac chi phi san xult thap va co t h I ap dgng trong eac dieu kipn dia chat phdc tap. Tuy nhien, cong nghp CO t i n thIt than Idn t d 45% -^ 50%, kho quan ly ve mat an toan nen han che ap dgng.
- Cong nghe khai th^c buong - id thuvng
KHCNM s o 3/2016* CNKT HAM LO
Thong tin khoa hoc cong nghe m o
cheo:
So 3b cong ngh$ khai thac bu6ng -16 thyong cheo dygc xay dyng tren co sd' ket hgp cua hai so do cong nghe: so do cong ngh$ khai thfc 16 doc via phan ting xien cheo va so d6 cong nghe buong thygng. Hien nay, cong nghe dang dygc mgt so cong ty than ham 16 nhy Vang Danh, Nam Mlu, Uong Bi, Hong Thai, Quang Hanh, IVIong Duong ap dyng thay cho cong ngh$ dao 16 lay than va buing - thygng (theo h? th6ng chuan bi cu) d l khai thac cac via than c6 gdc doc tren 45° (ma cac cong ngh? khac khong phu hgp).
Thyc te ap dung, cong nghe nay cho cac chi tieu kinh te ky thuat tot, nhy san lyong trung binh tir 196 + 358 tan/ngay-dem, cong suit 58.800 + 107.400 tln/nam, nSng suit lao dgng tryo tiep 3,84 -^ 6,76 tan/c6ng, t6n thIt than theo cong nghe ty 30 ^ 40%, tuy nhi&n, myc dp an toan han ch§.
- Cdng ngh$ khai thac dao Id lay than:
Cong nghe dao 16 lay than dygc ap dyng hau hit tai cac mo h i m 16 d l tan thu cac via than mong d i n day trung binh, doc tren 35° co dilu kien dia chat phyc tap, khoang sang nho, phan cat, trij' lygng ph§n tan kh6ng thuan Igi cho viec dau ty ap dung cac loai hinh cong nghe neu tren.
Ban chit cua cong nghe nay la dao cac dyong 16 phan ting va cac thygng khai thac t y cac dyo-ng 16 chuIn bj cua ting de lay than. Do do, cong tcic khai thac thac thyc chat la cong tac dao 16. U'u diem cua cong nghe la sg do chuIn bj don gian, thu hoi v6n nhanh, khai thac than dygc 6' nhij-ng khu vyc kho tan thu. Thyc t l , san lygng tan thu tir c6ng tac dao 16 lly than cua TKV hang nam khoang 0,5 trieu tan da gop phln nang cao hieu qua san xult va han che ton thIt tai nguyen. Tuy nhien, nhygc diem la san lygng thIp, thy6ng chi dat 1.000 + 2.000 tan/th4ng, ton thIt tai nguyen Ion, co the len toi 60% + 70%.
Do mot so han c h i cua cac so do cong nghe khai thac dang buong, cot, thang 11 nam 2015, Tap doan TKV da to chyc ra soat kilm tra cong nghe khai thac buing - thygng tai cac mo him 16 viing Quang Ninh. Theo Cong van so 586/TKV-KCM ngay 18 thang 02 nam 2016 cua Tap doan TKV v l viec lya chgn cong ngh? khai thac cac via day trung binh, gdc doc tren 45°, doi
vo'i cac via (khu khai thac) nho le, dilu kien dia chit phCrc tap, cho ph6p, khi khong lya chgn dygc cong ngh$ khai thac tien tiln hon thi tiiy theo dilu ki$n dja chat cy the cua via than, lya chgn mgt trong cac loai hinh c6ng nghe khai thSc: (1) L6 dgc via phSn ting; (2) L6 dpc via phan tang xien cheo; (3) BuIng thygng; (4) BuIng - thygng cheo vao khai thSc. Tuy nhien, cac dan vj khai thac h i m 16 c i n chu dgng hoac k i t hgp vo'i don vi t y v l n l$p thilt k l thi cdng vi trinh duyet Tjip doan tm'O'c khi thyc hien.
3. Kit qua ap dung so' dd cong nghe khai thac 16 cho* sip dung dan chdng m i m io^i ZRY20/30L t?i Cong ty than H6ng Thai
Theo kinh nghiem cua Trung Quoc, cong nghe nay giup khai thac hieu qua cac via than c6 chieu day t y 1,6-^4,5m, goc doc tren 45°, cong suit 300^600 tln/ngay-dem, nang suit lao dong 6,0+10 tan/c6ng. Dan chlng mem ZRY ap dung theo so do cong ngh0 khai thac khIu theo phygng hoac khIu theo hygng doc via (hinh 1).
Doi vol so do khau theo hygng doc, cong tac chuan bj va khai thac dygc thyc hi$n tyong ty nhy d l i vdi cdng nghe sy dung dan chong 2ANSH. Boi VO'I sg do khIu theo phygng co dac diem la dan chong dygc lap dat tai thygng khoi dilm dao cheo gdc so vo'i phygng va hygng doc cua via, tao thanh tuyen gyong 16 chg xien cheo CO gdc doc so vol phygng nam ngang tCr 25 + 30°. Trong qua trinh khai thac, cong nhan lam viec phia dyo'i dan chIng thyc hien c4c thao tac khoan no min, tai than bang t y trygt tren mang kim loai xuong cac phdng thao than phia chan 16 chg. Cuoi mSi chu ky khai thac, dan chIng dupe dilu khien t y trypi theo hydng doc dydi ap li^c cua da pha hoa va t y trgng cua dan, vdi khoang each djch chuyen bang tiln dg khIu gyong. Sau mpt s6 chu ky khai thac se tiln hanh thu hoi bdt vi chIng 6' phia chan 16 chg va chuyen len lap dat b l sung phia 16 doc via thong gi6 (hinh 2).
Dan chong mIm loai ZRY cua Trung Quoc co 3 loai (ZRY16/25L, ZRY20/30L, ZRY36/45L) la to hgp gom nhilu gia chIng (vl chong), moi gia ChIng CO c l u tao gom: 3 doan (xS^n6c, xa che chin va xa duoi), dygc lien ket mIm vcri nhau bang cac mat xich hoac khdp ban le. 0 bp phjn xa duoi dygc b l tri h0 thing xilanh piston thuy lye CO tac dyng cho phep thay doi chilu rong chong giO' 16 chg trong m0t pham vi nhat 3mh:
a}B6 tri guung Id cha theo phuong khiu theo chliu ddc via y-t
b) B6 tri gu^ng Id chg' xien ch6o khiu theo phuung via Hinh 1. Cdng t6c chuin bj vS khai thSc Id chg'
a. Ld cha sd dung diin ZRY; b Mat cit ngang Id chg; c. Khoan n6 min khiu Id chg Hinh 2. Khong gian chdng giu' v^ cdng tiic khiu than cua Id chg sO dung d^n chdng mim loai ZRY (a,b,c) c6 tac dgng ho trg c6ng tac dilu khien dan
chong trong qua trinh khai thac chong gid 16 chg.
Th6ng s i ky thuat gian chIng mIm ZRY du-gc gidi thipu trong bang 1.
Nam 2014, C6ng ty than Hong Thai d§ phli hgp vdi Vien Khoa hpc Cong nghe Mo nghien cdu, triln khai ap dgng c6ng nghe khai thac cpt dai theo phu-ang, gu-gng 16 chg xien cheo sd dgng dan chIng mem ma hipu ZRY20/30L khai thao c^c khu vyc via d i e khu Trang Khe. Sa do cong nghp khai thac sd dung dan chIng mem ZRY tpi Cong ty than Hong Thai, du-gc t h i hien tr6n hinh 3.
Trong qua trinh triln khai thyc t l , Cong ty
than Hong Thai - TKV va Vien Khoa hpc C6ng nghe Mo da thing nhIt l i p dat dan chong va khai thac thd nghipm 16 chg theo hai giai dopn.
Giai dopn 1: Khai thac 16 chg phan tang mdc +75/+95, chilu dai 16 chg xien cheo L = 40m, goe doc bilu kiln 30°, chieu dai dy kiln khai thac theo phu-ang Lp = 40m vdi mgc dich d l thyc hanh lam quen vdi c6ng nghe mdi.
Giai doan 2: Sau khi khai thac 16 chg phan tang mdc +75/+95 theo phaang du-gc 40m, tiln hanh lap dat dan chong keo dai 16 chg xuong mdc +40 de hinh thanh 16 chg eo chieu dai xien cheoL= 105m.
Ting hgp k i t qua dat dagc sau 5 thang ap
KHCNM s o 3/2016* CNKT HAM LO
Thong tin khoa hoc cong nghe m o
Bing 1. Thong s6 kf thuSt dia m0t s6 loai din chSng ZRY cia Tning Qudc TT
1 2 3 4 6 6 7 8 9 10
Ten thong s6 Chieu dSi xi chinh (xi ndc) Chieu d^i xi che chan Chi^u dH xi du6i Chieu rdng gici thin gi^
Khoang tam 2 g[i Ii6n nhau Li^n ket giOa cac giS Chieu cao chong gj[> cue ddn Chi^u day via ip dyng phCi hgp Gdc ddc via
Trgng lu'gng mdi don nguyfin gia Donvi
mm mm mm mm mm m m d6 Kg
Khoiltfong ZRY16/2SL
1170 650 1200
320 350 Xlch 1,6+2,5 1,6+2,5
>450
-
ZRY20/30L 1250
860 1200 320 360 Xlch 2,0 + 3,0 2,0+3,0
>460 380 + 400
ZRY36/45L 1942 960 1200 320 370 Xlch 3,6+4,5 3,6 + 4,5
>450
-
Hinh 3. So dd cdng ngh0 khai thic 16 cho, si> dung din chdng mSm loai ZRY20/30L cQa Trung Qu6c t?l Hdng Thil
1. LO dQC via vin til: 2. Ld doc via thdng gl6:3. Ld cha ip dung din chdng mem I09I ZRY; 4. COp di I9I vin chuyin: 5. Clip thio than: 6. Ming truvt: 7. Ming do; 8. Din mSm ZRY: 9. Cot TLB chuyin dung: 10. W
n6l chin Id cha ZRY.
dung tai Hong Thai (ty thang 8 d i n thang Ve cic ch!tieu kinh tekytliu$t:C6!\gngh?ii 12/2015) theo hai giai do^n dygc t h i hi$n trong oho mpt s i chi ti#u KTKT t i t (bang 4). Cdng suit bans 2. ^ va nang suit lao dOng tygng doi cao. San lygng
* Banh gia ket qua ap dung dan chdng mem ngay dem co giai doan ti> 07 d i n 19/12/2015 dat loai ZRY tai Cong ty than Hong Thai tCf 300 + 400 tIn/ngay- dSm. T i n thIt than giam ding k l chi c6n khoang 12,6 + 16,3% (trong khi
Bing 2. M6t s6 chi tlSu KTKT co bin cQa Id cha tai via 9b khu Tring Khi TT
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Thdng s6 Chieu day, gdc doc via trung binh Thdi gian khai thac 16 chg Ting san lygng khai thac dygc San lygng khai thdc 1 ngay Qim San lygng khai thac 1 thang Cdng suit khai thSc 16 chg Nhan cdng PX ngay dSm Nhan cong KT 16 chg ngay d6m Nang suit lao d$ng chung Nang suit lao ddng true tilp Chi phi thulc n l 1000 tan than Chi phi kip no 1000 tan than Chi phi g5 1000 tin than Chi phi lydi nhya 1000 tin than Chi phi lydi thap 1000 tan than Chi phi nhO hda 1000 tan than Mat IdchuanbjIOOO tin than Ton that than
Ban vj
-
Tan Tan 10'Tln T/nSm C6ng Cdng T/c6ng T/c6ng kg cai m3 kg kg kg m
%
S6 lurmg Thiitke
Giai doan 1 | Giai doan 2 2,7m; 48 d6 01/8 + 16/10/2015 190
4,75 63
-
3,0
-
142 472
-
26,8 25,6 17.3 21,0
8.116 334 8,36 90.000
63
-
5,3
-
142 472
- -
26,8 25,6 17,3 21,0
r/iire te tf#( diFoc Giai doan 1 { Giai doan 2
2,7m; 48 dp 17/10+21/12/2016
146
-
2,5 D 4,0 33
-
25 3,9 5,2 126,2 429,1 5,3 6,0 76,9
-
17,6 12,6
14.641 293 7,325 87.900 72 39 4,7 5,5 112 444 6,3 6,0 40,5
-
16,7 16,3 do, t i n thIt cua cong nghe khai thac buong -16
thu-gng cheo khai thac trade do t d 30 ^ 35%).
Dac bipt, trong khai thac 16 chg giai doan 2, cong tac khiu gu'ang 16 chg dagc b l tri dgng bpe, td 2 -H 3 vj tri khiu, t d do, san lu-gng khai thae cOng du-gc tang len so vdi giai doan 1.
Ve cong tac an toan: Cong nghp co quy trinh khai thac dan gian, gian chong c6 c l u tpo dan gian va thiet bi cua 16 chg khdng nhieu. So vdi cong nghp khai th^c buong - 16 thu-gng cheo trade day ap dgng tpi via 9b, cong nghp n^y, cong tac khai thac v^ quan ly than khai thac td gu-ang chu dpng han. L6 chg du-gc thong gio theo mgng thong gi6 chung, nen dieu kipn lam viec cua cong nhSn trong 16 chg t i t hgn.
Ket qua lam viec cua dong bq thiet bi Id chq:
Day chuyen thilt bj g i m tram bam, he thong d p djch, gian chIng va cac thilt bj van tai. Nhln chung, cac thilt bj cua 16 chg lam viec tot, dam bao dp tin cay phgc vg qua trinh khai thac 16 chg.
* Mpf s6 hoan thi$n cdng ngh$ trong qua trinh triSn khai tai Hdng Thai
Qua thdi gian triln khai ap dgng trong thyc
t l , c^c can bo, cong nhan cua phan xu-dng da van hanh thuan thge cong nghe va diHc nit dagc nhieu kinh nghiem trong khai thac 16 chg, cu t h i : d l i vdi c6ng tac khai thac 16 chg, cong tac khau gaang 16 chg dugc dilu chinh td 1 vj tri khiu (theo thilt kl) sang b l tri dang bac, td 2 -^ 3 vj tri khiu, td d6, san lagng khai thac cung dage tang len. Ngoai ra, ho chieu khoan no min khai thac cung dagc dieu chinh chilu dai dopn khiu t d 3
•i- 5m len 7 -^ 8m, vda giup tang san lagng khai thac, vda giijp dan chIng ty ha t i t han. Doi vdi qua trinh lap dpt va thu hoi dan chIng, vdi viec bo sung giai phap chen ladi thep dam bao hipu qua va an toan han. Ngoai ra, cac can bp cong nhan tryc tilp khai thac 16 chg da xd ly eac hien tagng sy co xay ra, dam bao an to^n va duy tri khai thac 16 chg I n djnh.
4. Kha nang md* rong ap dung cong nghp khai thac 16 cho" su> dung dan chdng mIm ZRY trong d i l u kipn cac mo him 16 cua TKV
* Danh gia tong hgp trQ luvyng cd kha nang ap dung cdng nghe
Qua qua trinh theo doi, danh gia, due rut kinh KHCNM s o 3/2016* CNKT HAM LO
Thong tin khoa hoc cong nghe m o
Bing 3. Bliu Min ip dung cdng ngh$ khai thic sii dung din chdng ZRY TT
1 2 3 4 5 6 7 8
Mgt so yeu to C h i l u d^y via trung binh G6c doc via c l u tao via DO ci>ng cua than 0S vSch tryc tiep Oct try tryc t i l p cua via Mdc (36 phay phS B i l u ki§n dja c h i t thuy vSn
Thong s6 - Dieu ki$n
< 4,5 m^t
> 4 5 °
Dan gian, via (t, ho^c khSng c6 dS kpp Than c6 d6 cdng b i t ky
S6t k i t , bet k i t c6 dO I n djnh t d trung binh trd I6n T$p s6t ket v^ b6t k i t , b i n vdng tmng binh Phay phS nho ho^c khong c6 phay ph^
Khu v y c khai thcic khOng ho$c It bj 3nh hirdng cQa nu-dc m0t cQng nhu- nu'dc n g l m
BSng 4. Tdng hgp trulu^fng c6c khu vi/c via than cd chiiu d^y trung binh din d^y < 4.5m, gdc die tr§n 45P cOa mdt s6 md him Id Quing Ninh Dan vi :1(P tin
TT 1 2 3 4 6 6 7 8 9
r S n M d Vang Danh Uang Bl Hdng Thai Nam Mau Quang Hanh Duong Huy Ha Long
Mong Duong T i n g Cpng
TSn via Via 6,5 Via 8,7,6V,6T
Via 9b. V I 0 Via 9,8,7,6,5,4
Via 16,9,7,6 Via 15,13,8,7,5
Via 14,13 Via II (11), G9
Chieu day 3,6+4,5 1,8+2,5 2,0+3,0 2,0+4,5 2,0+3,0
< 4 , 5
< 4 , 6
< 4 , 6
Gdc ddc TrSn 46 dd TrSn 46 d6 Tran 45 dp Tran 46 dp TrSn 46 dS TrSn 45 dd TrSn 45 dd TrSn 45 do
Tru' Iwang huy d^ng 1.100 1 620 1.366 4.930 1 600 1.320
980 2.300 15.006
Ghi chii Khu 1 gilng Vang Danh
Khu Trang Kha Khu trang Kha Khu than ThDng Khu trung tam Khu Nam va Ddng Bac
Khu Ha Rang canh 06ng
nghiem thyc t l tai via 9b khu Trang Khe II - Cong ty than Hong Thai, dong th6i xem xet dac tinh cua cac loai dan chong ZRY cua Trung Quoc, da xay dyng dygc cac tieu chi cd t h i ap dung cong nghe khai thac sy dung dan chIng mem cho cac md ham 16 cua TKV, (bang 3).
Vdi cac tieu chi neu tren, danh gia tong hgp sg bp trCr lygng cac khu vyc via than cd chilu day < 4,5m, gdc doc tren 45° cd kha nang ap dung cong nghe khai thac sy dung dan chIng mIm ZRY la tren 15 trieu t i n , dygc t h i hien tren bang 4.
5. K i t Iuan
TrD' lygng cac via co chilu day trung binh den day (chieu day d i n 4,5m) la rat Ion. Ngay 9/3/2016, tai Van phong Cdng ty than Hing Thai - TKV,Tap doan Cong nghiep Than - Khoang san Viet Nam da t l chyc Hgi thao cong nghe khai thac 16 chg xien cheo sy dung dan ohing mIm loai ZRY cua Trung Quoc. K i t Iuan Hgi nghi, Thanh vien HDTV Pham Van IVIat va Phd TGB
Tgp doan TKV da: (1) Danh gia cao kit qua phoi hgp then khai ap dyng cong nghe mdi vao thyc t l giya Cong ty than Hing Thai va Vien Khoa hgc Cong nghe Mo; 2) Giao Vien Khoa hpc Cong nghe Mo phli hgp vo'i cac don vi khan tryong nghiSn cilru, danh gia kha nang ap dung cong ngh$ nay trong thyc te cac mo, trydc tien la cac don vi Vang Danh, Uong Bl, M6ng Dygng; 3) Giao cho Cong ty Co khi Mao Khe phoi hgp vdi Vi$n Khoa hgc Cong ngh0 Md trong vi$c triln khai thilt ke, che tao noi dia hda dan chIng mIm loai ZRY, dac biet kiem soat tot ve chit lygng va gia thanh; 4) Vien Khoa hgc Cong nghe Mo khln tryong hoan thi$n bao cao tong kit, danh gia kit qua ap dung 6' Cdng ty than Hing Thai, ding thoi xay dyng Hydng dan ip dung cdng ngh^./.
Tai lieu tham khao:
1. Bao cao hoi thao Cdng ngh$ khai thic Id cha xidn cheo chong bang gian chong mem lo^l ZRY cOa Trung QuSc cua T$p doan TKV, ngay 09/3/2016 tai Cong ty than H6ng Thai - TKV.
