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Thong tin khoa hoc cong nghe mo NGHIEN CClra KH^ NflNG flp DUNG CfiC GIfll PWP CO Qi(fi woe wm NANG CAO NANG LCTC VQN TAI tai cae mo kem chl €hd Diem v a Lang Hieh Cho Dien and Lang Hich zinc mines be[.]
Thong tin khoa hoc cong nghe m o NGHIEN CClra KH^ NflNG flp DUNG CfiC GIfll PWP CO Qi(fi woe wm NANG CAO NANG LCTC VQN TAI tai c a e m o k e m chl € h d Diem v a Lang Hieh Cho Dien and Lang Hich zinc mines belonging to Vietnam Mineral Corporation have been exploited with both underground and open pit mining methods Due to the large distribution of the ore bodies and the manual transportation, the mining output and labor productivity is not high as scheduled The paper represents the capability for the application of the mechanization solutions to increase transport capacity at Cho Dien and Lang Hich zinc mines /^ dng ty Kim lopi mlu Thii ^^-^ Nguyen I I mpt dan vj san xult tryc thupc Ting Cdng ty Khoang san- Vinacomin dang quan ly v l khai thIc hai md kem chi thupc lopi Idn nhIt cua e l nu-de I I md kem ehi Ling Hich v l md kem chi Chg Diln CIc md nly dang du-gc tiln hinh khai thIe blng ca phu-ang phIp Ip thien v l phu-ang phap him Id, dd, san lu-gng chij ylu II khai thIc him Id, khai thIc Ip thien khdng Idn v l du-gc thyc hipn tpi mpt s l khu vyc Ip via eung nhu- mpt s l khu vyc t|n thu lai sau khai thac him Id Do dilu kipn ele thin qu|ng nam phin t i n nen cdng t i c khai thIe phai tiln hinh ding thdi tpi nhilu khu vyc, cac khu vyc du-gc md via dpc l|p, cdng nghp khai thac, v|n tai chu ylu bang thu cdng nen san lu-gng khai thIe v l nIng suit Iao dpng thIp, dilu kipn Iao dpng edn nhilu khd khIn D l giai quylt nhu-ng ton tai tren, thyc hipn chu tru-ang tu-ng bu-de ca gidi hda nham nIng cao cdng suit khai thac, cai thipn dilu kipn llm vipc v l TS TRyaNG DU-C Dy KS VO V A N HQI Vifn Khoa hgc Cdng nghe Md- Vinacomin giam ton thIt t l i nguyen, Cdng ty Kim loai mlu ThIi Nguyen d l phli hap vdi Vipn Khoa hpc Cdng nghp Md Vinacomin triln khai I p dyng mpt s l giai phIp ky thu|t cdng nghp tai hai md nly Hien tr^ng khai thac tai cac md kem chi Cho* D i l n va L i n g Hich l\/Id kem chl Ling Hfch thupc dja ph|n x l T i n Long, huypn Ding Hy, tinh ThIi Nguyen elch thinh phi Thai Nguyen khoang 30 km v l phia Tly Ble, Md cd dipn tich I I 1,27km^ vdi khu gIm: khu Ddng Metis, Tly Metis, Md Ba 1A, Md Ba IB v l khu Sa lung Hipn nay, md kem chi Ling Hich dang tiln hinh khai thIc tpi Khu gIm: Ddng Metis, Tly Metis, Md Ba 1A v l khu Md Ba IB vdi san lu-gng quang nguyen khai tpi moi khu tu- 5500 ^ 6500 tin/nim, san lu-gng toln md dat 17000 -^ 23.000 tIn/nam Do d|c thij ele than qupng thupc lopi mong d i n trung binh, die dii-ng (70 -^ 80°) v l nIm phin t i n tren dipn tich KHCNM sO 10/2011* CNKT HAM L tu-ang d l i rpng nen cIc khu vyc du-gc md vfa dpc l|p cho tu-ng khu theo phyang phap md via hdn hgp Id bang kit hgp vdi gilng dCpng (gilng mCi) Cdng tie chuan bj theo hp thing khai thac lu-u qu|ng vdi chilu cao cac buing tu- 25 -^ 35 m bang Id dpc via v|n tai v l Id dpc via thdng gid, chilu d l i theo phu-ang cua buIng tu40 ^ 60m bang ele du-dng 16 thu-ang cpt dIu hole culi khii khai thIc v l ele 16 nli md tryc tilp tu- ele" gilng mCi ^ Quang du-gc khai thIe theo ele Idp ngang tu- du-di len tren, vdi tiln dp m/ehu ky, chilu rpng mdi dai khIu tu- -H 8m Cdng t i c khIu qu|ng bang thu cdng khoan no ele Id khoan eon sudyng thulc n l nhu tu-ang 13 kit hgp vdi kip n l dipn Thilt bj khoan du-gc su- dyng II may khoan nen elm tay ca nhd YT-24 hole YO-20 cua Trung QuIc Qu|ng sau pha no dygc lyu ipi ^h ehIng tam khoang khdng gian d l khai thIc va lam san cdng t i e cho cdng nhIn llm vipc D l dam bao khdng gian ty to gu-ang khai thac din b l Thong tin khoa hoc cong nghe mo mpt qu|ng lu-u du d l cho cdng nhIn llm vipc, sau mdi dgt phi n l thio sa bp 25% -^ 30% khIi lu-gng qu|ng d l du-gc phi n l Sau phi n l toln bp qu|ng khIi, se tiln hinh thIo toln bp khIi lu-gng qu|ng edn Ipi Cdng tie v|n tai: Qu|ng khai thIc cIc buong du-gc lu-u v l thIo qua ele eu-a thao xuIng thung cd dung tich nhd 0,25 m^ tai Id bang v|n tai cua tang CIc thung v|n tai nly du-gc dpt tren tich, du-dng ray 600mm hole 1000 mm v l du-gc dly thu cdng chin gilng mu, sau dd du-gc v|n tai trung gian qua din c|p gilng mu bang tdi keo len mu-c Id bang, xuIng godng v|n tai dat tai cu-a gilng, tilp theo du-gc dly bp theo Id dpc via theo Id cai chinh cua Id, tpi cua Id dd tai thu cdng d l xuIng bli chu-a qu|ng Trong dIo Id ehuIn bj, qu|ng phi n l du-gc xuc thu cdng len thung dung tich 0,25m^ va du-gc v|n chuyin tu-ang ty nhu- tren len m|t bang Md Chg Diln nam phpm vi x l Ban Thi v l x l Tin L|p, huypn Chg Don, tinh Ble Cpn vdi dipn tich toln khu md la 1,49 km^ Hipn tpi md cd 14 khu khai thIc bao gIm ca Ip thien v l him Id, dd cdng tic khai thac him Id du-gc thyc hipn tpi khu khai thIe gIm ele khu: Lung Hoai, Binh Chai, Bd Ludng, Bd Pen v l Deo An vdi sin lu-gng khai thIc tpi ele khu tu- 3000 H15.000 tin/nlm Moi khu vyc gIm nhilu thin, khIi qu|ng nIm phin tin, tri> lygng quing elp 122 cua md dygc danh g i l dIo id v l khai thIc khoang 310.000 t i n v l tilm nIng tru- lu-gng du-di cac mtpc khai thIe I I rlt Idn Vdi d|e dilm ele ele khoi qupng dIu nam d phin ndng v l hlu hit tCp mCpc +300 trd len, v|y, ele khu vyc khai thac chu ylu du-ac md via blng Id bang ho|e gilng nghieng Mpt s l khu vyc du-gc md via hdn hgp Id bang kit hgp vdi gilng nghieng hole gilng mij Cdng tic khai thdng ehuIn bj da dap u-ng mpt s l yeu d u ky thu|t ca ban nhu-: khIi lu-ang du-dng Id md via it, kha nang tilp can ele thin qu|ng nhanh, thdi gian xly dyng md ngin v l vln dIu tu- ban dIu nhd Khu vyc chu ylu I p dyng he thing khai thIe buIng tru BuIng khai thIc du-gc hinh thInh blng khoan n l pha n l qu|ng tu- ele du-dng Id ngleh bang ele Id khoan nhd Mdi chu ky khai thIe thyc hipn pha n l tren dipn tich gu-ang buIng khai thIe to 6-^8m^, tiln dp khIu 1-^1,5m/chu ky Tru-dng hap ele thin quang cd chilu dly nhd han 3m se thyc hipn phi no qu|ng mpt lln tren toln bp chilu dly via, thin qu|ng cd chilu dly >3m thyc hipn phi n l tu-ng dgt theo ele Idp tu- tren xuIng du-di CIc khu khai thIc hipn tpi cua md dIu su- dyng phu-ang phIp xuc ble v l v|n tai thu cdng Tpi ele buong khai thac, qu|ng sau phi n l du-gc xuc thu cdng len thung dung tich 0,1 m' dpt tren xe cai tiln hope xuc tryc tilp len godng 0,5 m^, sau dd du-gc day bp theo ele dydng Id buong qua nhilu elp v|n tai trung gian tdi ele du-dng Id chinh hope ele Id thu-gng KHCNM S6 10/2011* CNKT HAM L chu-a qu|ng d l thao xuIng mu-c v|n tai phia du-di v l v|n tai ngoli mat bang Tai ele gu-ang dIo Id ehuIn bj eung I p dyng phu-ang phap xiic thu cdng len godng v l dly tay tdi ele bunke chit tai Id hole dly tryc tilp ngoli m|t blng Qua danh gia hipn trpng tai ele xi nghipp cho thIy, he thing khai thIc du-ac I p dung II phu hgp vdi d|e dilm dieu kien ele thin quang Nhu-ng cdng nghp khai thac su- dyng chu ylu la thu cdng tu- cac cdng dopn chinh din ele cdng doan phy trg, die bipt tpi khIu xuc ble v|n tai Dly II khIu quan trpng va thu-dng ehilm tdi 40 H- 60% thdi gian chu ky khai thac Tuy nhien, hipn tpi khIu cdng nghp nly edn nhilu han chl nhu-: cdng tic xuc ble v l v|n tai thu cdng, sa d l v|n tai phii-e tpp, nhilu d p vpn-tai trung gian, ap dyng nhilu hinh thu-e v|n tai khIc hp thing v|n tai, thilt bj v|n tai cd dung tich nhd, mu-c dp t i p trung hda thIp NhOng ylu t l tren din din nang suit v l hipu qua cdng tie v|n tai ehu-a cao, t i n nhilu nhIn lye, tpi ele khu vyc khai thac du-di slu chu-a cd hp thong v|n tai ngu-di din din cdng nhan mIt nhilu thdi gian di chuyin tumpt bang din vj tri llm vipc Vdi dilu kipn t l i nguyen v l hipn trpng ky thu|t md, cong tie van t l i nhu- tren II chu-a phu hgp D|c bipt, thdi gian tdi hlu hit ele khu vyc deu phai tiln hinh khai thIe xuIng slu, dilu kipn eing khd khIn, cong tie v|n tai ngly cing phu-c tpp, vdi xuc boc v l v|n tai hipn tpi thi vipc tri v l tang cao Thong tin khoa hoc cong nghe m o cdng suit khai thac theo k l hoach cua Cdng ty I I mpt v l n d l khd khan va viec nghien CLPU ele giai phIp ky thult cdng nghp nham nang cao nang lye van tai, nIng suit Iao dpng v l cai thien dieu kien lam vipc cua ngu-di Iao dpng theo hu-dng ca gidi hda I I v l n d l elp thilt v l I I ylu t l elt Idi d l nIng cao hipu qua cdng tie v|n tai ndi rieng v l cdng tie khai thIe ndi chung tai ele xi nghipp kem chl thupc Cdng ty Kim loai mlu ThIi Nguyen hien Nghien cOu kha nang ap dung cIc giai phap n h l m nang cao nang ILPC van tai D l khIc phyc nhu-ng t i n tai tren, Vien Khoa hpc Cdng nghp Md d l phli hgp vdi Cdng ty kim lopi mlu ThIi Nguyen nghien cu-u holn thien ele sa d l khai thdng chuan bj nham dan gian hda sa v|n tai, I p dyng mpt s l giai phap xuc ble van tai theo hu-dng ca gidi hda ele cdng doan sa v|n tai nhu-: ca gidi xuc ble v|n tai ele buIng khai thIe he thing khai thIe buong try, ca gidi va tpp trung hda cdng tie v|n tai tai ele du-dng Id vpn tai chinh, gilng nghieng, gilng du-ng, Cy thi: a Ap dung ca giai hoa xuc boc, van tai cac buong khai thac Vdi dilu kien ele buong khai thac ele thin quang dly gde die thoai, tru- lu-gng Idn v l thdi gian khai thIc tu- -^ nIm nhu- ele buong khai thIe khu Nam Lung Hoai cd t h i ap dung xuc boc v|n tai ca gidi bang ele thilt bj xuc ty hinh ca nhd sin cd nhu- mIy xuc PT-4, mIy xuc FAML -0,75 hole mIy xuc ZLD-17 (do Trung QuIc v l Nga c h l tpo) Trong dd, thich hgp nhIt I I mIy xuc ZLD-17 cua Trung QuIc cd nhilu u-u dilm nli b|t nhu- kich thu-dc nhd gpn thu|n Igi cho cdng tie v|n chuyin, lip dat, bd ph|n di chuyin blng binh xich v l sudyng nIng lu-gng dien nen cd tinh ca dpng cao Cd t h i sudyng loai mIy xuc nly kit hgp vdi ele loai godng 0,5 m^ (xi nghipp hipn cd) ho|e godng dung tich Idn han d l ca gidi hoa khIu xuc ble quang buong khai thIc Su- dung mIy xuc ZLD-17 ele buIng khai thIc cho phep ting nIng suit gIp nhilu lln so vdi xuc ble thu cdng, giam ehi phi su-e Iao dpng, d i thipn Bang Dac tinh ky thuat miyxQc lit sau ZLD -17 TT Ten thdng so Dung tich g i u xuc Nang suit Chilu rpng guing xuc Chilu cao da tai Chilu rpng du-dng 10 Chilu dai Chilu rOng Chilu cao Kilu dpng ca Cdng suit dpng ca di chuyin Cdng suit dpng ca cdng tic Trpng lu-gng 11 Hinh May xuc lat sau ZLD-17 t l i da dilu kien Iao dpng cua cdng nhln D|e tinh ky thu|t cua mIy xuc ZLD -17 dygc gidi thipu tren bang D l i vdi ele thin qu|ng cd chilu dly mdng din trung binh, die thoai khdng gian khai thac chpt hep v l viec ap dyng ele thilt bj xuc ble van tai ty hinh khd khIn, cd the thyc hipn ca gidi hda xuc boc blng mIy elo tdi Phu-ang phap nly cd rlt nhilu u-u dilm nhu-: kit clu may dan gian, di chuyin v l lip d|t mIy de ding, vj tri cua tdi d o nam elch xa vj tri phi n l nen mu-c dp an toln cao va phu hgp vdi nhilu dilu kien khai thac, die bipt, tpi ele buIng khai thIe eo cdng suit nhd v l trung binh khdng thi I p dyng cac thilt bj ca gidi hoi xuc ble v|n tai cd Idn Phu-ang an v|n tai nly cd t h i I p dyng cho ele khIi khai thIe hp thing buong tai tai.ele khu vyc nhu- Ble Lung Hoai, Deo An, Binh Chai, Bo Ludng (md Cha Diln) Die tinh ky thupt, hinh anh mpt so loai mIy d o tdi dyac gidi thipu tpi bang va hinh 12 KHCNM SO 10/2011* CNKT HAM L Dan vi m m% mm mm mm mm mm mm KW Gia tri 0,17' 20-30 1700 1250 >2000 2120 1011 1200 dipn 7,5x2 KW 10,5 Kg 3900 Thong tin khoa hoc cong nghe m o Bang Dac tinh ky thuat mgt so lo^i tai cao TT Ten dac tinh Cdng suit dOng ca Lye keo trung binh tren tang Dan vj KW Ma hieu 30nC-3CMA 3JP-15 30 15 N 2800 1400 T i c dp di chuyin g i u cao cd tai m/s 1,3 1,1 T i c dp di chuyin g i u (khdng tai) m/s 1,77 1,5 Du-dng kinh cap Idn nhIt mm 15 14,5 Chilu dai cap cuin cho phep m 90 80 Kich thu-dc (daixrpngxcao) mm 2400x860x770 1900x660x620 Trpng lu-gng tdi kg 1860 860 a Tdi 30/7C-3CMA (Nga) b Tdi 3JP-15 (Trung Quoc) Hinh Mpt so lo§i tai cao Nga va Trung Quoc san xuat b-Ap dung cac giai phap v$n tai t^i dwimg id bang Du-dng Id v|n chuyin chinh mOc +130 (LC4) khu Ddng Metis thupc md Lang Hieh cd chilu dli theo phu-ang khoing 170m, du-dng Id tu-ang dli thing Tpi du-dng Id nly cd t h i Ip dyng phu-ang I n v|n tli bang tdi keo godng Phu-ang In v|n tai nly cd ehi phi dIu tuban dIu nhd, cho phep vpn tai du-ac du-dng Id cd dp d i e Idn, phu hgp vdi eung dp v|n tli nhd Tuy nhien, hinh thu-c v|n tai nly cd nIng suit khdng cao, cIn b l tri ngu-di dilu khiln tdi keo tpi dilm dIu v l culi sa d l v|n tai Vipc I p dyng hinh thu-c blng tdi thay the hinh thu-c v|n tai blng dly bp thu cdng n|ng nhpc v l cho phIp giam thilu so lln v|n chuyin tren du-dng Id Tpi khu Nam Lung Hoai md Chg Dien, du-dng Id v|n tai chinh cd chieu dli Idn cd t h i I p dyng giai phIp vpn tai bang t l u dipn l e quy trpng lu-gng nhd keo godng Hipn tpi d l du-gc Xi nghipp nghien cOu du-a vIo triln khai Phu-ang I n v|n tai bang tlu dipn kit hgp godng cd u-u dilm tinh ca dpng cao, nang suit v|n tai Idn, sa v|n tai tu-ang dli dan gian, ehi phi dIu tu- khdng qui Idn Phu-ang I n v|n tai nly rat phu hgp de Ip dyng tpi d e khu khai thIe cd eung dp v|n tai tli thilu ty 300 - 500m met trd len Tpi d e khu vyc khai thIe khIc, d e du-dng Id bang v|n tai cd eung dp khdng Idn, cd KHCNM S6 10/2011* CNKT HAM L thi su- dyng tdi keo godng thay cho hinh thu-c day bp thu cdng c- Ap dyng cac giai phap v$n tai t^i cac gieng mu, gieng nghieng Tpi md Lang Hieh, cac khu vyc khai thIc du-ac l