Thong tin khoa hoc cong nghe nno w Tir VAN DAU Tir VA THIET KE KHAI THAC cac mo khoang san bang phuong phap ham Id Under the coordination among IMSAT and the Mineral Corporation, so far, many mineral[.]
Thong tin khoa hoc cong nghe nno w Tir VAN DAU Tir VA THIET KE KHAI THAC cac mo khoang san bang phuong phap ham Id Under the coordination among IMSAT and the Mineral Corporation, so far, many mineral mining projects have ThS vu CHAU TUAN been implemented and among them are Vi Kem copper ThS N G U V E N BCKC T H A N G ore and Sa Phin gold ore mining ones These two mines ThS NGUYEN VAN K|6N have been invested and mined with the underground VANNK mining method with modern technologies from miningVi^n to Khoa hpc Cong ngh^ Md-Wnacomin processing processes The paper refers to the investment consultation and design works for the mineral mines with underground mining method Theo Quy hoach phan vijng tham d6, khai thac, c h i bien va st> dung quang vang, dong, niken, molipden d i n nam 2015, CO xet d i n nam 2025 duac phe duyet (Quyit dinh s6 11/2008/QD-BCTngay 05/06/2008 cua Bp tnj'ang Bp Cong Thyang), muc tieu san lypng Quy hoach doi vo'i vang kim loai; nam 2015 dat tin/nam; giai doan 2015 - 2025 dat -10 tin/nam; doi vai ding kim loai: nam 2015 dat 20.000 tin/nam; giai doan 2015 - 2025 dat 30.000 - 40.000 tin/nam Khu mo quang vang gdc Sa Phin - Van Ban vi mo quang dong Vi Kem, Bat xat - Lao Cai la mot nhijng diem mo quang se dypc diy manh cong tac tham va dau tu khai thac Thyc hien quy hoach tr§n, dap yng nhu cau thj tnro'ng, myc tieu phat triin ben vu'ng, dinh huimg khai thac thu hoi t i l da tai nguySn, thong qua vi$c ap dyng cac cong nghe tien tiin, dam bao hieu qua kinh t i vi0c khai thac va bao ve moi tryang sinh thai Ting Cong ty Khoang san - Vinacomin va Vian Khca hpc Cpng nghe Mo - Vinacomin da ky ket Thoa Nam Xay, huyen Van Ban, tinh thuan ht?p tic chien lircfc ngayLao Cai, c6 dien tich tham d6 20/10/2010, nhim nang cao 1,22 km2, d6 khu Sa Phin han nya m i l quan he hpp tac 1,06 km2 va khu Tsuha 0,16 va phii hap chat che giu'a hai km2 Hinh t h i hien ting mat ben cong tac nghien ciju bang mo vang Sa Phin khoa hpc, ty v i n diu ty va yng Cong tac tim kiim tham dung cac tiin bp khoa hpc ky dia chat vung mo da dupe thyc thuat iinh vyc khai thac, hien ti> nh&ng nam 1995 c h i biin sau khoang san 1997 D i n nay, viec tham d6 ti TO' d i n nay, hai ben da mi theo de an "Tham d6 quang va dang phoi hap thyc hipn rit vang goc khu Sa Phin, Van nhiiu dy an, d6 co dy an Ban, Lao Cai" da hoan va d i u tu xay dyng cong trinh khai bao cao kit qua tham d6 da thac mo dong Vi Kem, huyen dypc Hpi dong Danh gia trO Bat xat va dy an diu tu XDCT lypng Khoang san phe duyet khai thac quang vang goc khu (Quyit dinh so 852/QeSa Phin, huyen Van Ban thupc HDTLKS 26 thang 04 nam tinh Lao Cai Cac dy an tren 2012) Theo d6, try lypng dupe dau ty theo dinh hyang quang vang goc khu Sa Phin xay dyng mo him 16 kiiu miu, dypc xac cSnh la 1.600 kg vang ap dung toi da cac giai phap ky kim loai thuat, c6ng ngh$ tien tiin tir Qua trinh tham khu mo khau khai thac mo din cong tac da phat hien 06 than quang c h i biin khoang san vang goc; fQ14, TQ15, TQ17, DIP an d i u t y XDCT khai TQ18, TQ18A, TQ19 Khu vyc thac quang vang gdc khu Sa da bi khai thac trai phep nhiiu nam tryac vai quy mo Phin - van Ban - Lao Cai TCf nam 2003 Ting Cong ty lan, cho nen hau h i t phin tren mat mot s i than quang d i bi Khoang san da chu tryang tham d6 va dya vao khai thac khai thac hit, theo chiiu sau ti> mo vang goc Sa Phin Khu mo vai m d i n 50m - 60m thupc ffla phan ban Sa Phin, xa Cac than quang c6 cau tao KHCNM S 6/2012* CNKT H/ilM L Hinh Tong mat bang md vang Sa Phin Bing Tong hop trie lu^gmg khu md TrOflu>qmg TT Than quang 1,21-2,23 0,71-1,2 Quing Kim loai Qu^ng Kim loai Him / i / v n g ving trung binh Kim loai (gTtan) T6ng c^ng Quing Tfli,'^ 8.301 36 254311 578 262,612 1.613 6,14 100 TQ15 8.300,8 36,7 40.266,0 225,7 48.565,8 261,4 5,38 18,49 TQ17 - - 87 411,5 306,4 87,411,5 306,4 3,60 33,29 80 390,2 736,5 80.390,2 736,5 9,16 30,61 TQ19 46.244,4 309,0 46 244,4 309,0 6,68 17,61 Toan mo TQ18 KHCNM SO 6/2012* CNKT HAM LO T h o n g tin k h o a h o c c o n g n g h e m o L6lhanoqi6*1351 ThuofigcM THAN QUANG 17 :y^Hujtl314 \Goong KT 17-2 lTbuooflv3,Sm Ham lu'O'ng Tyii (%) Quang Kim loai Qu$ng Kim loai Qu^ng Kim loai Toan md 2.550.607,9 17.192,7 2.603.602,4 21.910,9 5.154.210,3 39.103,6 0,76 100,0 TQ1.1 1.013 764,0 906,4 886.829,4 6.725,0 1.900.583,3 12.631,4 0,7 36,87 TQ1.2 284.879,6 2.966,4 1.103 679,8 11.093,8 1.388.559,4 14.050,2 1,0 26,94 TQ2.1 428,281,9 2.816,9 22 108,3 124,7 450.390,3 941,6 0,7 8,74 TQ2 121 404,0 640,8 403.001,3 2.316,3 624.406,3 2.957,1 0,6 10,17 TQ1A1 201.468,6 1.842,5 201.468,6 1.842,6 0,9 3,91 TQ1A.2 168.041,3 1.382,1 138.996,6 1.410,0 297 037,9 2.792,1 0,9 6,76 48.987,0 241,2 160 621,0 806,2 0,5 3,11 231 244,7 1.082,5 0,5 4,49 TQ6.1 111.534,0 565,0 TQ7 231.244,7 082,5 quang dong, nhung chi co 08 than quang dat cap trO lugng du ^eu kien thiet ke khai thac, bao gom: TQ1.1, TQ1.2, TQ2.1, TQ2.2, TQIa.1 TQ1a.2,TQ5.1 va TQ7.1 Trong gio'i han khai tru'O'ng thi§t k§, cac than quang co dac dilm phan b6 g^n song song vai nhau, phu-cng vj du-ang phu-cng chung la 140"- 320°, cac than quang thupc loai doc du-ng, cam v§ phia Bong B^c voi goc d6c 60° - 80° Hinh thai cac than quang la dang mach, thiu kinh di>t dogn phu-c tap, vo'i nhCrng dac diem cc ban sau: - Cac than quang chi phat trien tCr tren xu6ng d§n sau mCfc -50m, nai sau nh§t den mu-c -100m, ca biet co mot so than quang phat trien xuong miKC -150m nhu-ng lai phin bo khong d^u, c§u tao dang mach va vat mong vo'i chieu day ti> 0,27m-0,95m - Cac than quang co chieu day thay do! tCr 1,55m - 7,8m, trung binh 3,66m va du-cc x6p vao nhom than quang day trung binh den day Tong tri> lu'O'ng dja chat khu mo: 5.154.210 tan quang, t n i lu'O'ng cac than quang co chieu day 1,2 - 3,5m la 2.550.608 t i n , chiem 49,5%; trij- lu'O'ng cac than quang c6 chieu day > 3,5m la 2.603.602 tan, chi§m 51,5% - Tru" lu'O'ng khu mo tap trung chu yeu a 02 than quang chinh TQ1.1 vaTQ1.2, la 3,29 trieu tan, chilm 63,8% tong iris lugng toan mo Khai thong khu mo bang cap gieng nghieng (gi§ng van tai quang, vgn chuyen vat lieu, thong gio), ket hp'p vai 16 xuyen via t^ng Mat bang cua 16 gieng va san cong nghiep mo du'p'c lu'a chpn tai mCnc +160 6' phia ranh gio'i Dong Nam khai tru'O'ng mo, vi tri nam giiJa tuyen tham dja chat T.44-2 va T41-1 Cap gilng nghieng se du'Q'c dao den mCrc v^n tai 50, muc thong gio duo-c lira chpn 6'mu'C+150 - Gieng nghieng chinh van tai quang +160 /-58 du'p'c dao vffi goc doc 20°, chieu dai gieng L = 651m Gieng nghieng phu true tai vat lieu, van tai nguo'i +160 / -50 dup'c dao vo'i goc doc 23°, chieu dai gieng L = 571m - MLPC van tai: Sau xay dung he th6ng san ga chan gi§ng muc -50, ti§n hanh dao 16 van tai chinh -50 vao dSn than quang TQ1.1 - Muc thong gio: Tai vj tri mat bang muc +150 (tren tuySn dia chlitT.47-1) tiin hanh dao 16 thong gio chinh +150 denTQI.1, sau d6 dao 16 theo than quang TQ2.1 muc +150 Sc khai thong cac than qu$ng muc -50 cua mo dupe the hien tren hinh Khai tru6'ng mo du'p'c chuan bi theo tang va dup-c chia cac phan tang Tren cac than quang, cac guong khai thac dup'c chuan bj theo sc khau dat Trong mpt khu, cong tac chuin bj va khai thac theo trinh tu than quang tren khai thac truoc, than quang nam duo-i khai thac sau; moi tang, phan tang tren khai KHCNM S 6/2012* CNKT H A M L Thong tin khoa hpc cong nghe m o Gieng phu •160/-50 Ranh gio+160 Ga ch9n giing -50^ L6 van lai -50 TQ1 L6vantai-5DTQ1.1 -TQ1.2 \ \ ': \ / L6 vari tii chinh -50 XCiJng chinh+160i-5e l£i_vJ!iJiOlj IQI.I L6 van t.ii-?0 702.2 Ga-3DTQ11 •^L6 van tai -50 TQI'"t"-TQ1a.2 L6 van lai -50TQ1,1-TQ1,2 a van lai -50 TQ1 2| , Lov^n tai-50101.2 Hinh So* khai thong cac than qu$ng thac tryac phan tang dyo'i van tai chinh bing t i u dien i c he thong van tai ngoai (tuyin khai thac sau bang tai tO mat bang san cong quy t i n , xe go6ng 1m^ Tai thai diim mo dat cong Quang khai thac a gyang, nghiep mo +160 v i nha may suit thiet ke 400.000 t i n sau chit tai len xe goong tuyen), he thing SDK 6kV, quang/nam, cac dien khai thac 1m^ tai 16 doc via van tai chinh duo'ng i n g cung cip nyac va chuin bi dyac b i tri ding -50, dypc dau tau dipn i c quy sinh boat tip nha may tuyin thai tai ba than quang TQ2.1, tan keo d i n do' tai vao bunke d i n san cong nghiep mo IVI6 h i m 16 Vi Kem va mo TQ2 va TQ1.1, vai 04 gyang tai san ga chan giing -50, qua khai thac dong i\^ai cong suit may dap ham, co' hat sau dap vang g i c Sa Phin la nhung mo moi guang 100 000 tan/nam dam bao kich thyo'c Ian nhit ham 16 khai thac khoang san k i i u m i u d i u tien cua Tong He thong khai thac ap dung 200mm tryac chit tai vao Cong ty Khoang san noi neng cho mo dypc lya chon tren ca bang tai giing nghieng va va Tap doan Cong sa dieu kien d|a chit - ky thuat dypc van tai len mat bing san nghiep Than - Khoang san noi cac than quang Dy an de xuit c6ng nghiep+160 chung, duac xay dyng, ap 02 he thong khai thac: He cac cong trinh xay dyng dung cac giai phap ky thuat tier thing khai thac buing lyu tren mat bing mo dypc d i u ty tiin, ty khai thac mo din che quang va he thing khai thac xay dyng mai ding bo thep biin khoang san C6ng tac diu pha no phan ting; khoan n i ydu cau san xuit phu hpp vo'i ty xay dyng mo him 16 ia co thu cong bang cac 16 day chuyin cong nghe va cong hieu qua kinh t i , dap Cmg nhu khoan duang kinh nho (hinh suit thiit k i 400.000 tin/nam c i u tieu thu ding va vang kim va6) bao gom: nha hanh chinh sinh leal cua cac nganh cong Van tai quang a cac buing boat, nha t i m , giat s i y nha an nghiep nyac Cac mo khai thac bang hinh thyc ty 150 c h i , nha tram true giing h i m 16 khai thac ding Vi Kem chay qua cac cya thao quang, nghieng chinh, nha tram true va vang Sa Phin di van hoat van tai quang a thyang cpt giing nghieng phu, nha sya dong se tao tiin d i phat triin bing mang trypt; van tai chi^a ca khi, xyang cya, kho ben vu'ng va xay dyng cac mo quang 6' cac 16 trung gian bang g i (mat bing san cong h i m 16 khai thac khoang san xe goong day tay; van tai nghiep mo +160); nha tram x y khac tyang lai cua Tong quang tai 16 doc via, xuyen via ly nuo'c; kho vat lieu no tin ; Cong ty Khoang san-Vinacomin KHCNM s o 6/2012* CNKT HAM LO Thong tin khoa hpc cong nghe r Hinh He thong khai thac pha no phan tang - mo dong Vi Kem * A LJdc^^; Hinh He thong khai thac buong Iwu quang Han nya, dia diem xay dyng mo nam tren d|a ban co nhiiu dan tpc thiiu so, vi vay, di vao hoat dpng se tao cong an viec lam i n ffinh, nang cao aa\ sing van h6a tinh t h i n cua nhan dan dia phyang, gop phan tich eye dam bao cong tac an sinh xa hoi./ Tai lieu tham khao: Nghien ciru kha nang co giai hoa vi de xuat cac giai phap nang cao hi$u qua khai thac mo vang Minh Limng Van Ban - Lao Cai- Vien Khoa hoc Cong nghe Mo Vinacomin Ha Ngi 2011 Dtr an dau tw XDCT khai mo dong Vi Kem thac mo dong Vi Kem - Bat Xat - Lao Cai, Vi$n Khoa hgc cong nghe Mo-Vinacomin Ha Noi 2012 Dif an dau twXDCT khai thac quang vang goc khu Sa Phin - Van Ban - Lao Cai, Vien Khoa hoc Cong ngh$ Mo Vinacomin Ha Noi 2012 KHCNM S (i/2l)12« CNKT HAM LO ... tham do, d6 to chyc khai thac h i m 16 la phii hpp Theo d6 cac phyang an khai thdng dypc nghien ciru lya chpn la khai thong bIng 16 bang cho tyng than quang neng bi?t hoac khai thong Chung cho... chyc khai thac ding thai a hai than quang TQ17 va TQ18, VO''I 04 guang khai thac dong thai, cong suit m i l gyang 15.000 tin/nam Cong nghe khai thac dyac lya chpn ap dung chu y i u la c5ng nghe khai. .. Trong mpt khu, cong tac chuin bj va khai thac theo trinh tu than quang tren khai thac truoc, than quang nam duo-i khai thac sau; moi tang, phan tang tren khai KHCNM S 6/2012* CNKT H A M L Thong