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_^^ KHOA HQC VA CANG N G H | MO DANH GIA MUnC DO CHl)A VA THOAT KHJ ME TAN KHI KHni THnC MOT Sd' M O THAN HAM LO KHU VUC UONG Bi-QUANG NINH ThS N G U Y I N V A N THjNH, PGS.TS DANG VO CHJ, ThS N G U Y I N C A O K H A I - Trwdng £)?/ hgc Mo-Dia chit V Cing than Quang Ninh dang ed xu hudng chuyen din ^ trQng td khai thdc \g thien sang khai thde him Id Vung Udng Bi cd nin edng nghiep khai tfidc rat phdt tnIn vdi nhilu md Idn nhu: Cdng ty d phin than Vdnh Danh-TKV, Cdng ty TNHH MTV than Nam Mau, Cdng ty TNHH MTV than Ddng Vdng, Cdng ty TNHH MTV than Hdng Thdi Vin d l du(?c ddt Id khai thde xuIng sdu vide dam bdo an todn ve chdy n l metan Id vd cung quan trpng Do dd vi$c nghidn edu, ddnh gia dp chua va dp thodt metan khai thdc d cde mo than hdm Id vung Udng Bi Id vin d l elp thilt Td cd cdc ca sd de dua cdc bipn phdp dam bao an todn v l phdng chdng chdy nd metan, dam bao an toan san xuit dupc md vTa ehu ylu Id h^ thong md via bing 16 bdng xuyen via kit hp'p vdi id dpe via tung ting d Khu Ddng Vdng vd Khu Ddng Vdng Danh Ridng d Ktiu Odng Trdng Bach cdn cd kit hpp vdi ca cap gilng nghidng Hd thong khai thdc thudng dp dyng hd thong khai thdc cpt dai theo phuang chong giu bdng gid thuy lye di dpng va hp thing khai thdc dpe via phan tang chia Idp ngang nghidng chong giu 16 chg' bdng gid khung thuy lye di dpng Cdng nghe khdu than bdng khoan n l min, Cde khu dupc thdng gid dpe lap bdng phuang phdp thdng gid hut 1.3 Mo than Nam Mau Phin 16 bing md than Nam Mau da dup'c khai thdng bdng cac dudng Id xuydn via cde muc +125.11, +200.11, +250.11, +290.11 d khu 11 va 16 Mpt s l dac dilm cac mo hdm 16 vung Uong Bi xuyen via mdc +125.1 khu I Phin gilng nghidng dug'c md via tu muc +125 xuong mdc -200 d l khai 1.1 Mo than Hong Thai Mo than Hong Thdi chia lam phin khai thdc: md thac phdn sdu cua mo Khai tardng md dupc chudn via trdn mue thdng thuy Id Id bdng, dudi mdc thdng bj theo tang, trdn eo sd hp thing khai thdc cpt ddi thuy Id gieng nghidng kit hpp vdi 16 bing Md chudn theo phuang, khdu giattd bien gidi v l frung tdm cac bj khai thdc theo phucng phdp khiu gidt chia phdn Id xuyen via khu Todn mo dupc thdng gid bdng ting cd cdp thup-ng trung tdm, thupng d l van tai phuang phdp thdng gio hOt vdi tram quat ddt d than, thup-ng vdn ehuyen vat lipu vd thdng gid Md muc +297 vd mue +215 [3], [8] than Hong Thdi hidn cd khu khai thdc dgc lap \7], [8]: 1.4 Mo than Vang Danh Hidn edng ty than Vdng Danh dang tien •:• Khu Hong Thdi: G i m via {V43; V45; V46; V47) ed tru lup'ng edng nghidp dupc huy dgng vdo hanh khai thdc tdng 16 bdng d khu vyc : khu vyc khai thdc nam 2014 Id 520.676 tan Khu md dup'c Vdng Danh vd khu vyc Cdnh Ga Hp thong khai thdng gid nhd phuong phap thdng gid hQt, fram quat thde cdt ddi theo phuang, khiu than 16 chg" bdng khoan nd min, chong giu Id chp' bdng gid thuy lye ddt d mue +152, su dyng quat gio FBDCZ -No/20; • Khu Trdng Khd ll-lll: Gim via (V9b; VIO; V12; di dpng, gid khung thuy lye, gia khung xieh, ridng VI8; V24) cd trd lup'ng edng nghidp dupe huy d|ng cd Id ehp' via dup'c khiu than bdng mdy khau va vao khai thac nam 2014 la 718.411 ^ n Khu mo dupe chdng gid bdng gidn ty hdnh Vinaalta, dilu khien thdng gid nhd phucng phap thdng gid hut, tram quat da vach bdng phuang phap phd hoa todn phin ddt d cdc mdc +129 vd +200, hai tram quat deu su Phuang phdp thdng gid ehung eho cde khu la dyng quat gid BD-ll-4No12 thdng gid hut ddt tai cac mdc +260 su dung quat 2K60-N°18, mde +234 sd dyng quat FBDCZ-II1.2 Md than Dong Vdng[7].[8] Md than Ding Vdng hipn dang khai thac d khu N°15 khu Tdy Vdng Danh; mde +136 su dyng quat Jpc ldp- Khu Ding Vdng, khu D6ng Vdng Danh va 2K56-N°24 khu gilng Vdng Danh; mue +250 khu II ^hu Ddng Trdng Bach Hi0n mo than Ddng Vdng Canh ga su dyng quat 2K60-N°18; mdc +160 khu CONGNGHllPMOStf6-2014 KHOA HOC VA CANG NGHE MO giing Cdnh gi sir dMng quat 2K60-N°18 [6], [8] Bixih gid mijc dp chua va thoat metan chira mitan cua ede via than vCing Udng Bi trorij pham vi l)do cdo ndy chi xdc djnh dli vd'i ede kit qu d$ chira metan I6n nhit cua tirng khu v^c via ' 2.1.00/sil Mnh gii Sdng Xip loai md theo di thoit li/lita Vi^c ddnh gid xip hang mo ttieo d$ chi>a vd twang doi qui trinh khai thic [2] thodt mStan tudn theo Quy chuIn ky thudt Qu6e B$ thodt Mitan tuong d l i i Loai mo theo gia vk an todn khai thde than him 16: QCVN 01: khf Metan cQa mo (m^/T-ngdy-dim) 2011/BCT quy djnh nhu sau (B^ng 1, Bang 2) /TKC Gttfiidvbio BOCB'TKC GiibiDCK.iB»ma: H.4 Cic dd thj thi hi$n xu hutrng chira CH4 cic via thanl^i M6 than Vang DanhTa-BfiuS "xu hutmg chiea CH4 - Via V4; b - Biiu di xu hw&ng chira CH4 - Via 5; c - Biiu xu hw6ng chira CH4 • Via 7; d - Biiu di xu hu^ng chira CH4 - Via CONGNGHl£PMOStf6-20U _^^ KHOA HOC VA CANG NGHE MO Bang Mgt so diem thoat du^c phat hien [5] i T : Ham lypng Luulypng CH4(%) gid (m^/s) LS DV +115 V24 (gio thai chp) 0,0056 7,98 KT5) - md than Hdng Thai Ld DV +180 V47 (gio thai ehp 0.0049 3,36 KT10) - mo than Hing Thai Ld DV +250 V46 (gid thai ehp 0064 9,0 KT4) - mo than Hdng Thai 0.0112 Lo DV +220 V45 (gid thai chp 3,9 KT7)- md than Hing Thai Vi tri vd liy miu Lo DV 6A +71 CB (gid thai LC 6A4)- md than Ddng Vdng Ld thupng TG +71/+130 (gid thai Chung)- md than Ding Vdng 0.0385 0.0296 A LL Tin BQ thoat 0.02681 324 3,09837 0,00988 301 1,22673 0,02916 412 2,64988 0,02621 317 3,09536 5,76 0,13306 1283 3,88278 30,36 0,53919 5634 3,58314 Xep hang ' cac mo than ham 16 2011 Thiet ke khai thac phan 16 gieng mo than Nam Mdu, Cong ty CP TVDT mo va CN-TKV, Ha Mac du theo k^t qua quan trdc, phan tich va Npl 2006 danh gia d tren cac mo than hdm 16 vung Uong Bi Bao cdo k6t qua quan trdc CH4 cua Trung d4u xip hang I ve metan, nhien chiing ta tam An toan mo Vign KHCN mp 2013 cQng khong dug'c chu quan, mat canh gidc md van Bao cdo ket qua quan trdc nam 2013 Trung elin phai eo nhung bi^n phdp eg th^ d4 ph6ng nguy tdm cdp cdu mo, Quang Ninh, 2013 hilm xudt hi^n nhung khu vi^c chda cyc bO Bao cdo ting hg-p tdi lidu dja ehdt vd tinh lai c6 thi gdy nhdng nguy hiem b^t ngd cho cong trd lupng khoang sang than Vdng Danh C6ng ty tde khai thde mo Dja chdt mo TKV, Quang Ninh 2006 • Thudng xuyen ddnh gid, xdc djnh dO chda Bdo cdo ting hp'p tdi lipu dia chdt va tinh lai khi, thodt mdtan de phan loai mo theo dO nguy tru lup'ng khu mo Trdng Bgch, U6ng Bi, Quang hiem ve m§tan theo (fmh ky de c6 bien phdp Ninh Cong ty Phdt triln tin hpe, cong nghg va moi phCi hp'p; trudng, Hd Npi, 2010 • D6i vdi ede guong 16 ddo than, cdc Ke hogch thong gio ndm cac mo 2014 Phong guang 16 khai thdc can dug'c Canh bdo m6i Thong gib, Cdc cong V than: Uong Bi, Hing Thdi, Nam nguy hiem ve metan nhd giai phdp khoan IVIdu, Vang Danh tien guang, dac bi$t edn cai thi0n ehilu ddi l5 Ngwoi bien tap: Vo Trgng Hung khoan tien guong Idn 12-f16 m thay chilu ddi 16 De xuat cac bien phap an toan ve CH4 cho cac mo hdm 16 vung Uong Bi khoan tien guong hi?n tai dang dp dgng tai cdc mo Id 4+6 m; • Dli vdi cac dan vj lam vigc tryc tilp 16, m6i dan bi nhit thiet phai dup'c trang bj cac thiet bj dac metan c^m tay de c6 t h i kiem tra thudng xuyen tai khu vyc lam vi0e; • Ldp dat thilt bj canh bdo khf eho mOt khu vg-c Idm vide dOe ldp cd nguy hilm ve metan; • c i n bo sung ede dau metan hg thing :iuan trdc tap trung tg- dOng den tM ca eae guang 6, cdc khu vg'c thudng xuyen eo dp thodt Tietan Idn.a TAI L i i u THAM K H A O Trin Xudn Hd, nnk Giao trinh an toan vg sinh ao dOng khai thdc mo him 16 Hd NOi 2012 BO Cong Thuang Quy pham k? thudt an toan Currently, there are main pit coal mine in Uong Bi area: Vang Danti coal mine Nam Mlu coal mine, Bong Vong coal mine and Hing Thai coal rnine However, there aren't any studies about the evaluation of the level of gas in there Initiative to prevent accidents involving explosive methane gas, ensuring safe production, this article published research findings and assess containing methane drainage of mines in the region region On that basis, gives an overview of methane in the Uong Bi coal area and propose solutions to ensure safety CANG NGHIEP MO SA 0-2014 ... twang doi qui trinh khai thic [2] thodt mStan tudn theo Quy chuIn ky thudt Qu6e B$ thodt Mitan tuong d l i i Loai mo theo gia vk an todn khai thde than him 16: QCVN 01: khf Metan cQa mo (m^/T-ngdy-dim)... hit : khai thdc vd edc cdnh khai thde cua cdc via d i u khdng phdt hi$n thiy ning d$ metan, chi n, d l xdc djnh d | thodt cho cdc khu vyc khai c6 mOt s l dilm phdt hiin thiy ning d$ mitan e,... mijc dp chua va thoat metan chira mitan cua ede via than vCing Udng Bi trorij pham vi l)do cdo ndy chi xdc djnh dli vd''i ede kit qu d$ chira metan I6n nhit cua tirng khu v^c via '' 2.1.00/sil
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