CNM KHOA HOC VA CONG NGHE MO ^ DANH GIA HIEN TRANG VA DE XUAT MO HINH CONG NGHE KHAI THAC TUYEN THO QUANG TITAN SA KHOANG VIET NAM KS DAO CONG VU Vien KH&CN Md Luyen kim r dng nghiep khai thac ehl bie[.]
CNM KHOA HOC VA CONG NGHE MO ^ DANH GIA HIEN TRANG VA DE XUAT MO HINH CONG NGHE KHAI THAC-TUYEN THO QUANG TITAN SA KHOANG VIET NAM KS DAO CONG VU Vien KH&CN Md-Luyen kim r dng nghiep khai thac-ehl bien (KT-CB) titan d Viet Nam dugc hinh tCr nhu-ng nam ^ ^ ^ 90 eua t h i ky trudc, d i n nganh KT-CB titan da ed bude phat triln manh me ca v l mat ky thuat va quy md Cac nghien CCPU va cac t l hgp thilt bj khai thac-tuyin thd hien dang san xult thudng tap trung vao viec thu hdi khoang vat nang (KVN) phu hgp vdi quang giau, md tap trung, chua tan thu hit tai nguyen Trong dd, phin Idn eae khoang sang sa khoang titan ven biln nam phan tan, loang l l (kilu da bao) va quy md moi than quang khdng Idn nen md hinh khai thac-tuyIn thd d n phai ed sy thay ddi cho phu hgp Khai quat v l tru" iLpgng va tinh hinh san xult quang titan sa khoang Nudc ta la mpt s l cae nude cd nguln tai nguyen titan kha phong phu, quang titan phan b l rpng rai tren nhilu vung lanh thd, nhung tap trung nhilu nhit vin la vung ven biln Trudc nam 2005, ting tru- lugng quang titan da dugc tham dd va tim kilm, danh gia la 14 trieu t i n TCr 2005 din 2008 da tilp tuc dilu tra danh gia tilm nang quang titan tren eac dien tich chua dugc dilu tra trudc dd va da phat hien mdi eae md ed tai nguyen titan quy md Idn, glm khoang 20 trieu t i n phan b l tai 29 vung md tren ca nudc Trong nam 2007, da phat hien khu vue cd tilm nang rit Idn v l quang titan va du bao ting eat dd vung Binh Thuan va Ninh Thuan cd tai nguyen quang titan kha Idn, tren dien tieh 1500 km^ ed kha nang dat dugc 200 trieu t i n tinh quang titan, zircon (ham lugng khoang vat ed ich tu- 0,3 din %) Trong s l dd da cd du ca sd d l d i u tu tham dd tren dien tich 30 km^ va ed t h i xae djnh tru- lugng quang dat 30 trieu tIn.Vdi dilu kien khai thac thuan Igi, cdng nghe va thilt bj dan gian, v l n diu tu khdng Idn, cd thj trudng rpng, nen cong nghiep KT-CB quang titan cang phat triln va cd hieu qua kinh t l dang k l TCP nam 2006 din nay, trung binh hang nam cac dan vi khai thac titan ea nude khai thac va xult khiu khoang 600 CONG NGHIEP MO SO - ngan t i n quang tinh ilmenit Ca nude hien ed hang chuc edng ty khai thac va ehl biln quang titan vdi nhilu md hinh, quy md, cdng nghe, thilt bi khae Da ed mpt s l dan vj d i u tu vao khau ehl biln sau, vdi quy md cdng suit cang Idn Tuy tai nguyen dy bao v l quang titan eua Viet Nam kha Idn, nhung chu ylu la quang ngheo Trudc day thudng cae ca sd thudng khai thac quang nguyen khai vdi ham lugng KVN 3-^4 % trd len, thi mpt s l nai da phai khai thac din ~1 % hoac khai thac lai eac bai thai (edn phin Idn tai nguyen titan ting eat dd ehua dugc danh gia dly du) Trong ddi tugng quang giau dang mpt can kiet ma eac quy md, cdng nghe khai thac-tuyIn thd nhilu nai ehua dugc thay ddi cho phu hgp Cac mo hinh cong nghe khai thac-tuyIn tho p h i biln hien 2.1 Md hinh khai thac bing may xue+may gat, van chuyin quang nguyen khai v l khu vyc tuyln thd bing d td ty d l , he thing tuyln thd glm cae vit xoln (xem H.1) Khai thac va xCie b i c quang bing may xuc, chuyin quang v l khu tuyln thd bing d td d l vao bunke c l p lieu, tach rac, sdi, san Sau dd vua quang dugc bam d p lieu c l p len cac vit tuyln ehinh Quang tinh tuyln ehinh duge tuyln tinh lai va lly quang tinh dat tieu chuIn yeu d u Quang nguyen I Vit xoln tuyln chfnh May xuc - O to \ Thiet bi tach rac Rac, soi san Vit xoan tuyen tinh QuSng tinh Cat thai H.1 Md hinh cdng nghe khai thac-tuyin thd tai md De Gi -Binh Dinh CNM KHOA HOC VA CONG NGHE MO Md hinh duge ap dung kha nhilu vao giai doan 1995-2002 tai eae dilm md tap trung, trOlugng Idn d vung Ha TTnh, Binh Djnh d i n ehl edn rit it md ap dung Mo hinh cd nang suit eao, nhung ehi phi diu tu Idn va khdng phu hgp vdi dja hinh cua nhu'ng md hep Khi khai thac xa vj tri dat cum vit thi ehi phi van tai ldn, bj Khdng khai thac dugc phin quang nlm dudi muc nudc nglm, tin thit khai thac Idn 2.2 Mo hinh khai thac bing may xue+may gat, van ehuyin quang nguyen khai v l khu vuc tuyln tho bing he thing bam cat He thing tuyln thd glm phan ly edn kit hgp vdi vit xoln, dat tuang ddi c l djnh (xem H.2) Gat gom hoac may xuc xuc d l v l thung chCra quang diu tai khu tuyln thd TLP thung chu-a vua quang duge bam len d p lieu cho cae phan ly edn Quang tinh eua phan ly edn duge tinh tren cac vit xoln va lly quang tinh dat yeu d u Quang nguyen \ May xuc Phan ty :^ ã r- Vit xoĐn tuyĐn • Thiet bi tach rac ' *—•• Vlt xo^n tuydn • Bdm i '' Rac, sdi san ' Cat thai ' C3uang tinh • • H.2 Md hinh cdng nghe khai thac-tuyin thd tai Cdng ty khoang san BIMAL ? Quang nguyen Bdm hut * — Tach sdi, san '' Vit xoln tuyln chinh f r Soi san ' Vit xoln tuyln trung gian -^ '' Quang tinh Cat thai H.3 Md hinh cdng nghe khai thac-tuyin thd tai Cdng ty Ban Mai-Binh Thuan Md hinh duge ap dung vao giai doan diu tai mpt s l dilm md tru- lugng Idn d vung Ha TTnh, Binh Djnh din chi cdn mpt cum thilt bi tai Cdng ty CP KS Binh Djnh-Viet Nam-Malaysia SLP dung Mo hinh cd kha cao, chua khai thac dugc phin quang nlm dudi myc nudc nglm Phan ly ddi hdi dp In djnh d p lieu cao nen khd van hanh, he s l lam giau thip, ddi hoi phai tang cudng khau tuyln tinh 2.3 Md hinh khai thac bing bam hut cat dat tren be, cum thilt bj tuyln tho cung dugc dat tren be nli, ca dpng theo khu vuc khai thac (xem H.3) Quang tCr h i khai thac dugc bam hut chuyin d p lieu true tilp len cae vit tuyen chinh d l tach san phim (dudi thai, quang trung gian, quang tinh) Quang trung gian tuyln chinh dugc bam len cac vit tuyen trung gian d l tuyln lai lly tilp quang tinh Quang tinh eua eac vit tuyln ehinh va tuyln trung gian la quang tinh dat yeu d u Mo hinhnay ed tinh ca dpng rit eao, thich hgp vdi nhCrng md cd than quang nlm toan bp dudi mCre nudc nglm, nudc biln Hien dang dugc nhilu md d khu vue Quang Nam, Binh Thuan ap dung Tuy nhien trudc khai thac phai tao h i Idn d l cd du dien tich lam viec cho cum thilt bj khai thac va tuyln tho Ding thdi cdng nhan van hanh bam hut quang phai thao tac dung quy trinh thi qua trinh khai thac mdi I n djnh Khi chilu sau khai thac Idn thi viec van hanh Ing hut cat khd khan nen cd t h i din din tin thit khai thac 2.4 Mo hinh khai thac bing bam hut cat dat tren be, chuyen quang nguyen v l khu vue tuyln tho bing bam cat, cum thilt bj tuyln thd dat tren bd moong gin khu khai thac (xem H.4) Tren be hut eat b l tri dat may bam hut eat, hut trye tilp vao via quang Cat quang h i khai thac dugc bam cat bam len va chuyin v l cum vit tuyln tho dat tren bd moong khai thac Quang dugc bam true tiep len cac vit tuyln chinh d l tach san phim Quang trung gian tuyln ehinh duge bam len cac vit tuyln trung gian d l tuyln lai Quang tinh cae khau dugc tuyln lai tren eac vit tuyln tinh d l thu duge san pham dat yeu elu Md hinh ed tinh ca dpng tuang doi cao, hoan thd d l dang, thich hgp vdi nhQ-ng mo ed toan bp hay mpt phin than quang nlm dudi mCpc nudc nglm, nudc biln; nguln nudc khdng qua khd khan Tuy vay, san xult edng nhan lam nhiem vu choc ting de d p lieu cho bam khai thac va be dat bam hut ludn d sat chan tang quang, de gay mit an toan lao dpng Mo hinh dang dugc ap dung tai mpt s l md khu vue Quang Binh, Quang Tri, ThCpa Thien-Hul 2.5 Md hinh khai thac bing may gat gom quang, bom d p lieu v l cum vit tuyln thd, cum vit tuyln thd quy mo nhd dat gan khu khai thac, di chuyin theo khu vyc khai thac (xem H.5) Tai nhu-ng khu vuc mo cd toan bp than quang tren muc nudc nglm, than quang nong (1-3 m), ham lugng giau, khai thac bing may gat cat cac than quang va CONG NGHIEP MO SO - CNM KHOA HOC VA CONG NGHE MO gom tap tiung vao bunke chu-a Quang tCr bun ke dugc tach rac, bun quang dugc bam d p lieu tare tilp cho cum vft tuyln thd Cum vft tuyln thd tCr din vft, cd till chi cd hoac nguyen cdng tuyln chfnh va tuyln tmng gian lly dugc quang tinh dat yeu d u £».>• ~ Quang nguyen May xuc (gat) i Tach sdi, san Bom I Bdm hut Vft x o l n tuyln chinh Tach sdi, san Soi san n Vft xoln tuyln chinh Vft xoln tuyln trung gian —• ' i Vft xoan tuyln trung gfan -* '' Cat thai '• Quang tinh i '' Vft xoln tuyln tinh * Quang tinh Soi san • i Quang nguyen ;, — H.5 Md hinh cdng nghe khai thac-tuyin thd Cdng ty Thanh Tam va Doan Dja chit 406 Quang nguyen '' Cat thai May xuc (gat) H.4 Md hinh cdng nghe khai thac-tuyin thd tai Cdng ty KS Thira Thien-Hui Md hinh cd tinh co ddng eao, hoan t h i d l dang, khai thac dugc hit Idp quang, thich hgp vdi nhu-ng md cd than quang nam tren mu-c nudc nglm, nudc biln Tuy nhien nang suit cua cum thilt bj thip, ehl phu hgp vdi khai thac quy md nhd tai cac dilm quang giau Dugc su- dung d mdt vai dilm md nhd va giau vung quang Hui, Quang Binh 2.6 Md hinh khai thac bing xuc, bam clp lieu v l cum vft tuyln thd, cum vit tuyln thd cd nhilu nguyen cdng tuyln, dat gin khu khai thac (xem H.6) (3uang dugc may gat, may xuc gom tap trung nguyen lieu va dua vao bunke Quang tCr bun ke dugc tach rac, bun quang dugc bom d p lieu trye tilp cho cum vit tuyln thd Quang dugc bam len cae vit tuyln chfnh d l tach san phim Quang trung gfan dwgc tuyln lai d l thu hii tilp quang tinh Quang dudi eac khau dugc tuyln vet d l tan thu quang Quang tinh cac khau dugc tuyln lai tren eac vit tuyln d l san phim dat yeu elu Vdi quy md cum vft ft thi md hinhed tfnh ca dpng tuong dii cao, nhung niu nhilu vft thi khdng ea dpng Ding thdi chi phf san xult cao thilt bj khai thac va cd nhilu thilt bj bom Chi phu hgp vdi khai thac tai cae dilm quang tuang dii giau, cd nhilu loai khoang vat trung gian khd tuyln, cd than quang nlm tren myc nudc nglm Md hinh dugc su- dung mdt thdi gian d Ha TTnh, ThCra Thien-Hul, Binh Djnh nhung hieu qua kinh t l khdng cao CONG NGHIEP MO SO - I I Bam I Vft xoln tuyln chfnh I trung gian Vit xoan tuyen Tach sdi, san Vit xoln tuyln tinh *" X Quang tinh Sdi san Vft xoan tuyln vet Cat thai H.6 Md hinh cdng nghe khai thac-tuyin thd Cdng ty Sao Mai-Binh Thuan Danh gia chung Tren t h i gidi: Thudng khai thac d cae md cd quy md nang suit Idn (hang trieu tin quang nguyen khai/nam), nen dugc co gidi hda d mCre dp cao Ham lugng quang dua vao tuyln thudng tCp 3-^7 % KVN va tru- lugng moi md tCr hang trieu din nhilu chuc trieu t i n KVN Nhilu ca sd khai thac bing tau culc hoac sung nudc dat tren tau hut bun va van tai quang v l xudng tuyln thd t)lng SLPC nudc Cac thilt bj khai thac va tuyln thd diu dat each mdt khoang each phu hgp d l dudi thai cua tuyln thd ft anh hudng d i n CNM KHOA HOC VA CONG NGHE MO nudc d p cho khai thac ding thdi cac cum thilt bj tuyln thd di chuyin theo khai trudng d l giam chi phf van tat quang diu va dudf thai Cac day chuyin tuyln thd thudng dugc thilt lap lip ghep tCr cac modun (cum) thilt bj da dugc thilt k l chi tao hang loat cho tCrng muc dfch cu thi: tuyln quang cd ham lugng thip 25 % KVN hay cum vft chuyen cho tuyln clp hat mjn Cac md quang tren t h i gidi cd xu hudng xay dung cac xudng tuyln thd cd quy md khdng qua Idn, cd tinh ca dpng, cd till djnh ky di chuyin theo khai tardng d l giam chi phf van tai d Viet Nam: Tuy theo ham lugng KVN md, dae dilm dja chit mdi than quang, quy md tCrng md, quan dilm diu tu cua tCpng dan vj san xult ma cong nghe khai thac-tuyin thd d tCrng md da cd nhu-ng su thay dii, dilu ehlnh nhit djnh '> Cong nghe khai thac: Do dac dilm cac than quang nlm Id thien hoac bj phu dudi Idp cat mdng, nen cdng nghe khai thac d tat d cac khu md la Id thien, khdng n l min, bai thai trong, khai thac theo Idp bing, kilu cuIn chilu Chia khai trudng nhilu khoanh khai thac, tiln hanh khai thac dCrt dilm tCr khoanh d l tao dien d l thai Phuang phap khai thac-van chuyin chu ylu la: Khai thac bing may xuc, may gat, van chuyin quang v l xudng tuyln thd bing d td hoac khai thac bing may xuc, may gat, van chuyin quang v l xudng tuyln thd bing thuy lye hoac khai thac bang sung ban nudc va bom hut eat, van chuyin quang v l xudng tuyln thd bing thuy luc • Cong nghe tuyln tho: Dac dilm cua cac khoang vat cd ich d n thu hii quang diu la KVN d dang ty do, khac nhilu v l ty trpng so vdi cac khoang vat phi quang nen tuyln thd su- dung phuang phap tuyln trpng lye mdi trydng nudc Thilt bj tuyln chu ylu la vft xoln hoac phii hgp giu-a phan ly cdn va vft xoln Cac kit d u md hinh cdng nghe cd thi: ehl cd nguyen cdng tuyln hoac cd hai nguyen cdng hoac cd nhilu nguyen cdng Kit clu cOm thilt bj tuyln thd cd t h i dat tren be hay tren bd moong khai thac, cd tinh ca dpng tuong dii theo tiln trinh khai thac md Quy md va s l lugng thilt bj cua tCrng nguyen cdng tuyln thay dii tCr din 24 vit, kit clu ca cum tuyln thd cd t h i tCr din 48 vft thupc vao tCpng quy md va dac dilm md cu t h i theo tu-ng thdi ki san xult Phin Idn cat dugc thai tai khai trudng da khai thac ding thdi d l hoan thi Cac phuang phap khai thac-tuyin thd da va dang ap dyng cd nhilu cai tiln, song vin cdn cd nhuge dilm nhu: chua dat hieu qua kinh t l cao dilu kien tai nguyen khoang san cang can kiet, vung quang giau dugc khai thac hit din ehl cdn lai quang ngheo, ham lugng khoang vat cd ich thip, dilu kien khai thac cang khd khan phCrc tap, dp sau khai thac cang Idn, tru- lugng phan tan Mit mat KVN dudi thai van cdn cao, ham lugng cat thai tCr 0,5 din % Khd khan viec khai thac cac than quang cd chieu sau thay ddi phCrc tap theo dja hinh hay nhu-ng khu vuc cd khd khan v l nguln nude D I xult mo hinh cong nghe khai thac-tuyin tho Qua thye t l hoat ddng cua cac don vj thiy ring: Md hinh khai tiiac tuyln tiid cd hieu qua han ca la eac md hinh cd tfnh ca ddng cao, quy md khdng qua Idn, tiiuan tien ti-ong tiiao lip, tiiay t h i thilt bj Md hinh khai tiiactuyln tiid su- dung d td d l chuyin quang v l khau tuyln thd din khdng co sd nao ap dung Nhu-ng md hinh khai ttiac bing may xuc, may gat, quy md ttiilt bj tuyln thd ca Idn sau mpt thdi gian d i tiln, thu- nghiem khdng dem lai hieu qua kinh t l eao, nen khdng dugc cac ca sd diu tu tilp (chi tri hoat ddng tai mpt s l vai md da diu tu tiu-dc day) Su- dung phan ly edn tuyln thd ca nudc hien ehl cdn 01 cum thilt bj dang hoat ddng tai md D l Gi (Binh Djnh) Quang nguyen i ?^ Bam sue nudc ^ Bam hut tren be hoac tren h i thu Tach sdi, san •H — • Soi san i ^^P' Vft xoln tuyln chfnh '' L m m m Vft xoln tuyln tinh i 'M " Quang tinh Cat thai H Md hinh cdng nghe de xuit Vdi dac diem quy md md quang cua Viet Nam (quy md nhd va trung binh, phan tan dpc theo ven biln, dan xen giu-a cac khu vyc dan cu hay dit da sudung vdi muc dfch khac, ham lugng cang ngheo), nen md hinh khai thac-tuyin thd khdng nen xay dyng g quy md qua Idn d l cd tinh co dpng cao, nhyng phai dam bao yeu d u kinh t l san xult (khdng qua nhd), ding thdi phu hgp vdi quy md thiet bj san ed, thuan Igi cho ca diu ty va thay t h i van hanh Thye t l san xult cho thiy viec d p quang nguyen khai bing bam hut cat trye tilp tCr khai thac len khau tuyln rit khd I n djnh (ca v l ham lugng, ty le rin/ldng ), anh hudng khdng tit din kit qua tuyln D l han ehl bdt hien tugng d n ed them thung CONG NGHIEP MO SO - KHOA HOC VA CONG NGHE MO CNM chCra lam nhiem vu dilu hda giu-a khau khai thac va clp lieu len vit tuyln, ding thdi san phim trung gian cua khau tuyln nao quay lai chfnh khau tuyln dd Do vay mo hinh d l x u l t la: khai thac bing sung bin nude hoac vdi sue nudc danh tai, sau dd dung bam hut cat (dat tren be hoac tren h i thu sat chan ting khai thac) d l hut quang va chuyin v l khu tuyln thd Su- dung cae vit xoln d l tuyln thd, dat gin khu khai thac (cd till tren be hoac tren bd moong khai thac), ca dpng, dinh ky di chuyin theo khai tardng Kit d u md hinh cum vft tuyln thd vdi nguyen cdng tuyln (tuyln chfnh va tuyln tinh), s l lugng vft moi cum tCr 12 din 16 chile, ham lugng KVN tinh quang khau tuyln tiid nen tCr ^ % Sa d l cdng nghe xem H.7 eao nhit, tan thu dugc tai nguyen, bao ve dugc mdi truang sau khai thac; d n ed them eac nghien cuu ehl tao cac loai vit tuyln phu hgp vdi dac dilm cua tCrng loai quang ed phin vat chit khac d l phu hgp vdi tCpng nguyen cdng t u y l n • TAI LIEU THAM KHAO Bd Tai nguyen va Mdi trudng Van ban s l 2009/BTNMT-DCKS V/v dilu tra, tham dd, quan ly hoat ddng khai thac quang titan 04/6/2008 Quy hoaeh tham dd, khai thac, ehl biln va sudung quang titan giai doan 2007-2015, djnh hudng din nam 2025 da dugc Thu tudng Chfnh phu phe duyet tai Quylt djnh s l 104/2007/QD-TTg, 13 thang nam 2007 Dii vdi khu vyc cd than quang nlm cao tren myc Cdng ty CP phat triln khoang san D l an nude nglm: khai thac bang bam hut eat datti-enh i thu ddng cu-a md Bau Ddi, Binh Thuan 2006 sat chan ting khai thac d l hut quang; cum vit tuyln thd Hiep Hdi titan Viet Nam Thdng tin tCr mpt s l dat tren bd moong gin khu khai thac Cdn vdi khu vyc bao cao, tham luan v l hoat dpng san xult eua eae ed toan bp hay mpt phin than quang nlm dudi myc nudc nglm: Khai thac bing bam hut cat dat tren be nli vien 2005, 2006, 2007, 2008 va 2009 TT nghien cu-u Cpng dung khoa hpc v l khoang ti-ong h i khai thac d l hut quang; cum vit tuyln thd dat san D l an ddng cu-a md ilmenit Cat Khanh, Binh ti-en bd moong gin khu khai thac hoac tren he thing Djnh 2008 be phao h i khai thac Vien KH&CN Md-Luyen kim Bao eao xay dung K i t luan va kiln nghj md hinh ngan ngCpa, giam thieu d nhiem va hoan thi phuc hii mdi trudng khai thac-ehl biln sa Cac md hinh cdng nghe khai thac-tuyin thd da va khoang biln 2009 dang ap dung ed nhilu thay dii va cai tiln, song vin Dao Cdng Vu (Vien KH&CN Md-Luyen kim) cdn cd nhuge dilm: chua phu hgp dilu kien tai Bao cao Ting kit d l tai "Nghien CCPU xay dyng md nguyen khoang san cang can kiet, vung quang hinh khai thac-tuyin thd di dpng titan sa khoang ven giau dugc khai thac hit din ehl cdn lai quang ngheo; biln" 2009 mit mat KVN dudi thai vin edn eao; khd khan Dang Tmng Thuan, Bui Xuan Nam Nghien cCru eac khai thac cae than quang cd chilu sau thay dii ttidng s l cdng nghe va trinh ty khai thac hgp ly quang phu-e tap theo dja hinh (chua tan thu hit tai nguyen va ilmenit eln cat ven biln huyen Phu My-Binh Djnh Tuyln chua mang lai hieu qua kinh t l tdi uu) tap HpittiaoKHKT Md Toan qule ilnttiCrXIX 2008 Md hinh cdng nghe khai thac-tuyin thd ehl nen d Le Van Thanh Cue Cdng nghiep dia phuang quy md tmng binh, tang tinh ca ddng, giam ehi phi diu Bao cao hien trang tai nguyen va khai thac ehl biln tu Trong tuyln thd phai cd giai phap dam bao In djnh quang titan 2005 ti-ong d p lieu, loai san phim thai dam bao yeu 10 Pham Manh Cudng He thing mang be di d u tCr khau tuyln diu, sau dd tang cudng cae khau dpng khai thac-tuyin thd sa khoang titan Tuyln tap tuyln tinh d l thu duge san phim tinh quang dat yeu Hdi thao KHKT Md Toan qule iln thu- XVI 2004 d u Linh hoat b l tri thilt bj khai thac va tuyln thd 11 Phan Thj Thai Dae dilm dja cac md titan sa d l phu hgp vdi dilu kien dja chit md khoang ven biln Viet Nam va vln d l lya chpn edng Dii vdi nhung md cd cdng suit thilt k l Idn cd thi nghe khai thac hien Tuyln tap Hpi thao KHKT lip dat nhilu cum thilt bj theo md hinh tren cung song Md Toan qule Iln thCr XVI 2004 song hoat dpng D l eho viec d p quang diu len cac vit Ngudi bien tap: Tran Van Trach tuyln In djnh han, nen ghep hai cum vit vdi tiianh mpt modun, ed kit d u ehung bp tach rac+thung bam quang diu va he thing dien dilu khiln \^:;:\:::,,;••;;/:/:•••;'SUMMARY •'':-y\.•••-•-'\:',\ Do dilu kien dja chit, dac thu phin vat chit : The paper shows the results of assessing tCrng vung miln, tCrng md eua Viet Nam va quy md the state and suggesting the model B cac thilt bj da diu tu eua cac ca sd rit khae nhau, technology for coarse exploitation and nen dii mdi md hinh khai thac-tuyin thd: phai cd benefieiation for titanium ore in Vietnam cac nghien CLPU, danh gia dly du d l thilt k l quy md, kit clu md hinh phu hgp nhlm dat hieu qua kinh t l CONG NGHIEP MO SO - ... quang titan 2005 ti-ong d p lieu, loai san phim thai dam bao yeu 10 Pham Manh Cudng He thing mang be di d u tCr khau tuyln diu, sau dd tang cudng cae khau dpng khai thac-tuyin thd sa khoang titan. .. quy trinh thi qua trinh khai thac mdi I n djnh Khi chilu sau khai thac Idn thi viec van hanh Ing hut cat khd khan nen cd t h i din din tin thit khai thac 2.4 Mo hinh khai thac bing bam hut cat... sdi, san Vit xoln tuyln tinh *" X Quang tinh Sdi san Vft xoan tuyln vet Cat thai H.6 Md hinh cdng nghe khai thac-tuyin thd Cdng ty Sao Mai-Binh Thuan Danh gia chung Tren t h i gidi: Thudng khai