Thong tin khoa hpc cong nghe m o
/ Sir CAN THIET DAU TIT KHAI THAC CAC MO QUANG DONG t a i t i n h Lao Cai thupc T a p doan T K V q u a n l y
Vietnam National Coal - Ivlinerai Industries Holding Cor- poration Limited is a key unit in coal and other minerals min- ing and processing. The exploration and orientation for the copper ore mining and processing in Lao Cai province bas- ing on the evaluation of tfie mine geological and technical conditions, Its resource advantages, labor potentiality for de- veloping the local economy as well as the coal and mineral sector IS considered as an essential task. The paper intro- duces the development of the copper ore mining and pro- cessing industry In Lao Cai province by Vietnam National Coal - Mineral Industnes Holding Corporation Limited
TS. LU'U VAN THU'C ThS. VCl CHAU TUAN
KS. VO DlNH TRU'ONG Viin Khoa hoc Cdng ngh$ Md-Vlnacomin
ThS. t e T U A N N G O C Tdng Cdng ty Khoing sin - Vinacomin
Biin t$p: TS. Lwu VSn T/i(«;
Dong la nguyen lieu quan trpng trong viec xay dung va phat triln nIn kinh t l quoc dan. Khoa hoc ky thu|t cang phat tnln thi gia tri sir dung cua d6ng cang tang. Tren thi trudng, dong la loai kim ioai dugc tieu thu dirng thir 3 sau thep va nhom. Do tinh d i n dien, d i n nhiet tot, dp ben kha cao nen dong va hgp kim dong du'gc sir dung rong rai lam day d i n dipn trpng cac thiet bj dien cong nghiep va dan dung. Ngoai ra, ding va hgp kim dong con du'gc sir dung nhieu trong che tao may, xay dung, san xuit dien circ... CSc hgp chit dong nhu dong oxit, dong sunfat, dong oxyciorua . cung dugc sir dung rpng rai trong cac ITnh vu'c nhu nong nghiep, dong tau, bao quangl...
Nhu cau v l ding tren the gidi cung nhu a Viit Nam ngay cang tang. Tren toan the gidi, nhu c i u tieu thy dong tang tir 16,6 trieu t i n (nam 2005) len 18,2 trieu tan nam 2009. 6 Viet Nam, nhu cau tieu thg ding cung tang r i t nhanh tir 54.000 t i n nam 2005 len 102.000 t i n nam 2009;
dy bao nam 2015 nhu eau tieu thu ding kim loai la 120.000 tan va d i n nam 2025 se len tdi
« 200.000 t i n .
0 nudc ta eac mo va dilm quang dong chinh da duoc tim kiem va phat hien tai 3 khu vuc la dai tu khoang bd tay song Hong giOa bien gidi Viet Nam va Trung Quoc tren «a ban tinh Lao Cai; vung tu khoang song Da va tu khoang phia Tay dong bang B l c Bo. Tong trCr lugng va tSi nguyen dy bao khoang tren 2 tripu t i n dong kim loai, trong do da tham do va danh gia trii' lugng
dugc 1,24 tripu t i n . Hipn nay, t l hgp khai thcic - tuyen d i n g tai khu vue mo d i n g Sin Quyln, huypn Bat XSt, tinh L4o Cai m i i nSm s i n xuit khoang 40.000 t i n quang d i n g (hSm iugng 23%) cung elp tinh quang cho N h i rniy iuy^n dong Tang Loong d l san xuat ra khoang 10.000 t i n d i n g kim lopi.
Tap doan C6ng nghipp Than - KhpSng s5n Vipt Nam dugc Chinh phu giao dam nhlin vai trb n6ng cot trong vipc khai thSc, c h i biln than vi cac loai khoang san n l i chung. VipcthSm d l vi djnh hu'dng c6ng tac khai thac, c h i biln quang d i n g tai tmh Lao Cai tren eg sd dinh g\i dilu kien dia chit - ky thuat mo, Igi t h i v l t a nguyen, phat huy npi luc nham phuc vy nhu c i u cua nIn kinh t l , phyc vy phSt triln b i n vifng nginh Than - Khpang san ndi rieng va c i c nginh cing nghipp cua d i t nudc nei chung i i h i t sire cin thiet.
1. Sanh gia tinh hinh phan bd, trir lu'p'ng v i c h i t lu'p'ng qu^ng d&ng t^ii m$t s l mo trSn dja b i n tinh Lao Cai
a. Mo quang dong Sin Quyin
IVIo dong Sin Quyln n i m a hti'u ngan sing Hing, each TP. L i o Cai khoang 25km v l phia Tay Bac, co t h i t i l p can vting ty khoing niy bing c i dudng s i t v i dygng dtp tir H i N|i din L i o Cai, sau do di theo dydng tinh 10 B i t X i t - Trinh Tydng. V i o mOa mya, khi nydc sing ISn cao, CO the van chuyin quang tir m l theo dudng thuy tren song Hing. Bia hinh khu mo l i c i c day nOi cao, phia T i y Nam vung mo l i vting niii vdi
KllCMVI so 12/2014 • CNKT LO THIEN
Thong tin khoa hpc cong nghe mo
do cao tu- mu-c +800 -^ +3000 m Dien tich khu vyc phan bo cac than quang khoang 150 ha, tru"
lu'ong phan bo tap trung ti> miJc +100 ^ -120m thuan tien cho cong tac khai thac bang phu'ong phap lo thien. IV16 n^m xa khu dan cu', nen it anh hu'ong toi moi tru'ong sinh thai, d i t dai nong nghiep.
Khu mo Sin Quyen du'oc danh gia la vung quang h5n hop gom ba loai phin chinh la: bng, dat hi§m va vang, quang d6ng chu y§u la dang sunfua (chalcopyrit). Khu mo da du-oc phat hien tim kiem va tham do tu-nhij-ng nam 1961 -^ 1973 vol trCJ' lu'ong 52,7 trieu t i n quang dong cap B+C1+C2, ham lu'ong trung binh khoang 1,03%, tu'ong du'ong voi 551,2 ngan t i n Cu ya co cac khoang san cong sinh di kem nhu-: vang, bac, lu'u huynh, d i t hiem v,v...Trong khu vyc khu mo Sin Quyen phat hien du'oc 17 than quang, tuy nhi§n, chi co 5 than quang co gia tri cong nghiep va du'oc du'a vao thiet ke khai thac. Cac than quang co goc doc trung binh 82o.
Nam 2007, Tong Cong ty Khoang san da tien hanh tham do bo sung, ket qua tham do, chuyen doi tru' lu'ong du'oc Hoi dong trl> lu'ong Quoc gia phe duyet nam 2009. Tri> lu'ong con lai tinh den 31/12/2012 la 10,8 trieu tan quang dong cap 111+122, ham lu'ong trung binh 1,23% va 45 trieu t i n tai nguyen quang d6ng d p 222+333, ham lu'ong taing binh 0,82% [1] (bang 1).
b. Mo quang dong Vi Kem
Vung mo Vi Kem thuOc dia phan xa C6c My, huyen Bat Xat, tfnh Lao Cai, each thanh pho Lao Cai khoang 30km v^ phia Tay Bac, du'oc Tong Cong ty Khoang san - Vinacomin quan ly, bao ve tham do khai thac. Mo Vi Kem nam li§n ke vol mo Sin Quyen. Oja hinh khu mo g6m cac d6i nui cao voi do cao tuyet doi ti> 100 ^ 350m, co phu'ong keo dai Tay Bac - Dong Nam, syon doc nghieng ve phia Dong Blc. Cac su-on nui deu doc, dja hinh bj phan c i t manh. Dien tfch khu vyc phan bo cac than quang khoang 50ha, tru' lyong phan bo tap trung tCr mCrc +100 + -87m thuan tien cho cong tac khai thac bing phu'ong phap h i m 16, it anh hu'ong toi moi tru'dng, d i t dai nong nghiep.
Tu- nam 2006, T6ng Cong ty Khoang san - Vinacomin da tham do khu Vi Kem va da phat hien, khoanh noi dyoc 18 than quang, trong do
Khio sat thiit ki md ddng Vi Kim huyen Bit Xit. tinh Lio Cai CO 8 than quang co gia tri cong nghiep. Cac than quang phan bo g i n song song voi nhau voi goc d6ctu'6a°+80°.
Nam 2011, Bao cao tham do b6 sung da du'oc Hoi dong danh gia tru' lu'ong khoang san phe duyet voi tru' lu'ong 5,15 tneu t i n quang dong d p 121+122, ham loong trung binh dat 0,76%, tu-ang du'ong 39.104 t i n Cu kim loai, trong do, co cac khoang san cong sinh di kem nho: vang, bac, sat, lu'u huynh, v.v... Ngoai ra, khu mo con xac djnh du'oc 6,3 trieu t i n tai nguyen quang dong d p 222+333, ham lu'ong trung binh 0,59%» tu'ong du'ong voi 37.000 tan l<imloaiCu [2] (bang 1).
c. Mo quang dong Ta Phdi
Khu mo d6ng Ta Phoi thugc dia phan xa Ta Phoi, thanh ph6 Lao Cai, tmh Lao Cai, thuoc su'on phia Dong day nui Cam Thing. Hien nay, he thong du'ong giao thong da doyc xay dyng toi tan khu mo. He th6ng giao thong tiy mo den cac khu cong nghiep lan can nhu*: Nha may luyen dfing Lao Cai, khu vyc apatit, thanh ph6 Lao Cai v.v... tu'ong dai hoan chinh.
Dia hinh co do cao tuyet d6i tCr mire +210 -^
+720m va bj phan cat manh boi cac he thong song suoi cung hang loat cac he thong khe ranh nho.
Trong vung, con co nhieu tiem nang khoang san khac, tru' lu'ong mot s6 loai khoang san co tam CO quoc gia nhu' apatit, s i t v,v,. Trong khu vyc CO mot s6 mo dang khai thac nhu*: Mo apatit
KHCNM S 6 12/2014 * CNKT LQ THIEN
Thong tin khoa hpc cong nghe mo
Cam Du'ong each Ta Phoi 3 km vd phia Dong Bac, mo s i t Quy Xa, mo s i t Lang L^ch each 25 km vk phia Dong Nam.
Ket qua cong tac tham do khu mo da phat hien va danh gia du'oc 18 than quang, trong do, 4 than quang Ion co dang thau kinh chi^m 90%
tru' lu'ong o khu trung tam, nen rit thuan loi cho cong tac khai thac bang phu'ong phap Ig thien.
Nam 2012, mo dong Ta Phoi da du'oc Hoi dong d^nh gia tri> lu'ong khoang san Quoc gia phe duyet vdi 11.325 ngan t i n quang cap 122 tu'ong dng 99,19 ngan tan kim loai dong va 8.240 ngan tan quang d p 333 tu'cng dng 56,46 tan kim loai d6ng [3] (bang 1).
Nhu-vay, tinh d i n thdi diem hien tai trd luong va tai nguyen cua 3 mo da duoc tham do la 85,44 trieu t i n vdi ham luyng kim loai dong 0,59-1,23%. Day la nguon tai nguyen quy gia dap dng yeu d u cong nghiep hoa, hien dai hoa dat nudc trong nhdng nam tdi.
2. Chi§n lu'O'c khai thac quang ddng tai mot sd mo
De dap ung nhu d u thj trudng ve kim loai d6ng va phu hop vdi Quy hoach phan vung tham do, khai thac, c h i bien va su dung quang vang, dong, niken, molipden Viet Nam den nam 2015, c6 x6t den nam 2025 da duoc Bp Cong Thuong ph^ duy?t, trong thdi gian qua, Tong Cong ty Khoang san-VinacomIn va Cong ty C6 phan dong Ta Phdi-Vinacomin da phoi hop vdi Vien Khoa hpc Cong nghe M6-Vinacomin lap cac dy an dau tu md rong nang cong suit mo dong Sin Quyln, dau tu mdi mo dong Vi Kem va mo d6ng Ta Phdi.
a, Mo dong Sin Quyen
Mo dong Sin Quyen bat dau khai thac tu nam 2003, hien nay to hop mo - tuyin dang khai th^c vdi san luong t d 1,1 -5-1,2 trieu t i n quang nguygn khai/nam. Thyc t^ hoat dgng trong nhdng nam qua da minh chung viec dau t y T 6 hop d6ng Sin Quyen dem lai hieu qua kinh te xa hoi thilt thyc, dong gop dang ke cho ngan sach dja phuong va tao vigc lam 6n djnh l^u dai cho tren 1.000 lao dgng, gop phan dang k l v^o vigc giam nh^p khau dong kim loai td nudc ngoai.
Nhim nang cao cong suit khai thac, dam bao cung d p nguIn nguyen lieu cho Nha may luyen d6ng Bat Xat, phu hop vdi quy hoach phat then Nganh, dap dng nhu cau tieu thu trong nudc va xuit khau d i n g kim loai, viec d i u t u md rpng nang cong suat To hop khai thac - tuyen dong Sin Quyen len 2,0 + 2,5 trigu tIn/nam la d n thiet.
Can cd vao khoi luong qu|ing nguyen khai khai thac duoc trong bien gidi mo va cong suit thiet k l lya chgn, thdi gian t6n tgi cua mo d6ng Sin Quyen la 15 nam, day mo sau nhit mdc -152m [4] (bangl).
Bing 1. Tru-iuung vi tii nguyen cic md
' ' • ^ ^ , \ ; ^ , .
TT
1 2 3
Tin md
ViKem Sin Quyln Ta Phdi Ting
TrO' lugmg Kh6i lugng 10'tin 5 164,2 10.882 11.325 27 361
Him luong Cu%
0,76 1,23 0,88
Tainguyin
•|?' i
6.321 43.516
8 240 58.077
Him lugng Cu%
0,59 0,82 0,71
Hinh 1. Khai tniOng md ddng Sin Quyin (thing 12/2014)
KllCNM so 12/2014 * CNKT LQ THIEN
Thong tin khoa hpc cong nghe m o
Bing 2. Cic chi tiiu chinh cua md ddng Sin Quyin vi Ti Phdi
TT
1
2 3 4 6
6
7
8
9 10
Cic chi tieu
C6t cao day khai tru'dng:
Ktiu Dong.
Khu Tay Chieu dai tren mAt C h i l u rOng tren mat DiSn tich Khoi lucng quang (^a c h i t
Ham luong Cu quSng dia c h i t TB Kii6i lu'ang qu^ng nguy&n khai H^m lu'ong Cu quang nguyen khai trung binh Khoi lucng dat bCc Hp so boc tmng binh
Dan vj
m m m m ha 1 0 ' t i n
%
1 0 ' t i n
%
10»m=
m=/T
Gii trj MdTi
Phdi
+110
1220 850 103,77 11.003
0,85
11.376
0,794
58.067 6,10
MdSin Quyin
-162 +62 2.695
720 161 31.462
0,89
32.710
0,86 131.266
4,01 Bing 3. Cic thdng sd HTKT
TT
1
2 3 4 5 6 7 8 9 10
Cac thdng so
Chilu cao tang khai thac - Khi khai thac - K h i k l t t h C i c Chieu cao phan t i n g Chieu sSu hao c h u i n bi Chieu rpng m$t t i n g c6ng tic t l i thieu Bmin Chilu rOng mat t i n g nghi G6c doc s u d n t i n g GOc d i e b d cong t^c p Chieu rgng dai k h i u Chieu rOng dai v$n tai Chieu dSi khu v y c xue
Don vj
...
m m m m do 3d m m m
Mo Sin Quyen
12 24 5+7 6 40 15^20 60+65 22+26 20 20 260
MdTi Phai
10 20 4+6 6 36+40 15+20 60+66 22+26 16+18 15+20 200
Theo ket qua tham do b l sung mo ding Sin Quyen tai nguyen d p 222+333 la 43,5 tneu t i n [2]. Trong qua trinh thilt ke khai thac, chf co tai nguyen d p 222 duoc huy dgng vao khai thac, con hon 30 trieu t i n tai nguyen d p 333 chua huy dpng khai thac. Vi vay, d l tgn thu tai nguyen, tang tu6i thg mo, trong qua trinh khai thac mo d n tiln hanh tham do bo sung d l nang cap tai nguyen 333 thanh d p tru luong d l co t h i huy dgng vao thiet k§ khai thac.
Tren co sd dieu kien san trang, d u tao, dac dilm tinh chit cac than quang, hien trang khai thac va dg sau phan bo, cong tac md vfa, khai thac mo dong Sin Quyen duoc thyc hien bang cong nghe khai thac Ig thien, ap dung he thong khai thac (HTKT) xuong sau, c6 van tai va sd dung bai thai ngoai. D l giam thilu ty le ton that va lam ngheo quang trong qua trinh khai thac d n thiet phai di hao phia vach than quang va xue theo guong xue dgc ting.
Dong bo thiet bi (DBTB) lya chgn: May khoan CO dudng kinh d = 165 -5- 250mm, MXTLGN cd dung tich E = 3,4 -^ 5,6m^, may xue dien co dung tich gau E = 5m3; 6 to tai trong t u 36 + 60 t i n , may gat cong suit 220-^240 HP.
Cac thong so HTKT phCj hop vdi dong thiet bj lya chon eua mo duoc t h i hien d bang 2 va mgt s6 hgat dgng khai thac (hinh 1).
b. Mo dong Ta Phoi
Theo Dy an d i u t u da duoe phe duyet, t6 hop mo - tuyin ding Ta Phdi vdi cong suit 1,0 trieu t i n quang nguyen khai/nam, khai thac bang phuong phap lo thien. Mo ap dung HTKT xuong sau, CO van tai va sd dung bai thai ngoai. Thdi gian khai thac cua mo la 13 nam, khli luong d i t boc hang nam tu 5,5 + 5,8 trieu mVnam [6]. Cae thong s l HTKT phu hop vdi thiet bi lya chgn cua hai mo duoc t h i hien d bang 2.
Cac khau cong nghe chinh trong qua trinh khai thac: khoan n l , xue boc, van tai, thai d i t da.
DBTB khai thae lya chgn la: May khoan dudng kinh d = 150 + 200mm; thilt bj boc xue van chuyen d i t da: May xue dung tieh gau 4,3 + 5,0m^ k i t hop vdi oto co tai trgng 30 -^ 40 t i n ; thilt bj hoc xue van chuyin quang: May xue dung tich gau 2,7+3,0m^ k i t hop vdi oto co tai trgng 30 •^ 32 t i n . Quang nguyen khai duoc
KHCNM S 6 12/2014 * CNKT Lp THIEN
Thong tin khoa hpc cong nghe m o
i' X
S?:
•J 1 1 1 "1 1 ^ J I n..:L „...J.,,. "] 1
Hinh 2. Sa dd khai thdng cic thin quing mOc -50
Hinh 3 He thdng khai thae phi nd phin - md ddng Vi Kem
nghiin dap sau do van tai v l n h i may tuyin bang he thing bang tai ngoii d phia B i c khai tn/dng.
c. Mo dong Vi Kem
Vdi dinh hudng xay dyng mo ham id quang quy mo idn, i p dung toi da c i c giai phip ky thuat, cdng nghe tien tiln trong c i c khau cua day chuyen khai thic mo. Cong suit thiet k l md dypc x i e dinh l i 350.000 tin/nam, thdi gian t i n tai md khai thac hit phin try lupng da duoc phe duyet la 18 nam [5], sau do tham do b l sung
Hinh 4. Hi thdng khai thic buSng luu quing -mdddng ViKem
nang c i p t i i nguyen d l keo dai tuli thp mo.
Khu md dypc khai thong bang cap gilng nghieng (gieng van t i i quang, v|in chuyen vat lieu, thong gio), k i t hp'p vdi 16 xuyen via ting.
Mat bang cira lo gilng v i san cong nghiep mo dypc lya chpn tai mire +160 d phia ranh gidi Bong Nam khai trudng mo, vi tri n i m gitfa tuyin t h i m dd dia chat T.44-2+T41-1. Cap gilng nghieng se dygc d i p d i n mire v i n t i i -50m, mii'c thong gio dyoc lya chon a mite +150m (hinh 2).
KHCNM S6 12/2014 • CNKT Lp THIEN
Thong tin khoa hoc cong nghe mo
Cong tac chuin bi khai trudng va HTKT duoc thyc hien phu hop vdi so do khai thong. Khai trudng cua mo duoc chuin bi theo tang khai thac va ting duoc chia thanh cac phan tang. Tai cac thSn quang, cac 16 cho duoc chuin b| theo so do khiu dat va phu hop vdi sy chuin bi. cua cac HTKT
De phu hop vdi d u true dja chit cac than quang mo ap dung 2 HTKT bao g i m : HTKT pha n l phan tang khoan no min tach pha quang bang xe khoan ty hanh, ap dung tai eac khli khai thac CO chieu day >3,5m (hinh 3) va HTKT buing luu quang khoan n l min thu cong bang cac 16 khoan dudng kinh nho (hinh 4).
Van tai quang d cae buong khai thac bang hinh thuc t y chay qua eae eua thao quang; van tai quang d thuong cot khai thae bang mang truot qua cda thao; v^n tai quang d cac 16 dgc via trung gian bang xe goong d i y tay; van tai quang tai 16 dgc via, xuyen vfa van tai chinh bang t l u dign I c quy 5 t i n , xe go6ng 1m^
Quing khai thac trong 16 cho sau khi chat tai len xe goong 1 m^ tai 16 doc via van tai chinh -50, duoc dau tau dien I c quy 5 t i n keo den dd tai tai s§n ga chan gilng -50 vao bunke chan gieng nghieng, qua may dap ham dam bao co hat sau dap dam bao kich thudc Idn nhit < 200mm trude khi duoc chit tai vao bang tai gieng nghieng va duoc van tai len mat bang san cong nghiep +160. Toan bg quang nguyen khai cua mo Vi Kem se duoc van chuyen d i n eung d p eho Nha may tuyen Sin Quyln so 2 (cong suit 1,1 -^ 1,3trieu tIn/nam).
Cac cong trinh xay dyng trdn mat bang mo duoe d i u t u xay dyng mdi ding bg dap dng yeu d u san xuat, phu hop vdi day chuyen cong ngh§ va cong suit thiet ke 350.000 tIn/nam.
Mo ham 16 Vi Kem se duoc d i u tu ding bg, ap dung ccng nghg khai thac tien tiln, khi mo di vao hoat dong se tao tien de phat trien ben vung va xay dyng cac mo h i m 16 khai thac khoang san khac trong tuong lai cua T i n g Cong ty khoang san-Vinacomin.
3. K i t Iuan
Can ed vao dieu kien dja chit, dja hinh, try luong cua cac mo quang dong vung Lao Cai thugc Tap doan Cong nghigp Than - Khoang san Viet Nam quan ly cho thay viec dau t u nang cong
suit mo ding Sin Quyen, dau t u mdi mo dong Ta Phdi va mo Vi Kem co higu qua kinh te cao.
Trong nhung nam tdi eac mo se tao thanh cum cong nghiep khai thac quang ding c6 san luong Idn nhit nudc ta. Cac mo tren se cung elp nguyen lieu I n dinh cho Nha may luyen dong Tang Loong va mgt nha may luyen dorig khac duoc d i u tu xay dyng tai Bat Xat vdi cong suit 2 nha may la 30.000 tan ding kim loai/nam
Oe tan thu toi da tai nguyen, dap ung nhu d u nang eong suit va phat then ben vung, trong thdi gian tdi, cac Cong ty can d i u tu tham do b l sung nang d p trd luong cac khli tai nguyen d p 222+333 (58 trieu tan) d l dua vao quy hoach khai thac.
Vdi chiln luoc nhu tren khong nhung gop phin dang k l vao sy phat triln b i n vung eua Tap doan TKV noi chung va Ting Cong ty Khoang san-Vinacomin, Cong ty C l phin dong Ta Phdi noi rieng trong nhung nam tdi, ma con tao dgng Iyc manh me cho su phat triln cua nganh eong nghiep khai khoang tren dja ban tinh Lao Cai gop phin vao sy phat triln kinh te, an sinh xa hgi cua tmh.
Tai lieu tham khao:
1. Bao cao chuyin doi d p tru luong, d p tai nguyen mo dong Sin Q u y l n - Lao Cai, Cong ty c l phan tin hoe, moi trudng-Vinacomin (2009), Ha Ngi.
2. Bao cao tham do b l sung quang dong va khoang san di kem viing Vi Kem, xa C i c My, huyen Bat Xat, tinh Lao Cai, Cong ty TNHH MTV Dia chat Viet Bac-Vinacomin (2011), Ha Noi.
3. Bao eao tham d6 quang ding viJng Ta Phdi, thanh p h i Lao Cai, tinh Lao Cai, Cong ty TNHH MTVDia chit Viet Bac-Vinacomin (2013), Ha Noi.
4 Dy an dau t u xay dyng eong trinh d i l u chinh khai thac md rong va nang eong suit khu mo- tuyin d i n g Sin Quyen, Lao Cai, Vien Khoa hgc Cong nghe Mo - Vinacomin (2012), Ha Noi.
5. Dy an dau t u xay dyng cong trinh khai thac mo ding Vi Kem, Bat Xat, Lao Cai, Vien Khoa hoc Cong nghe M6-Vinacomin (2013), Ha Noi-
6. Dy an dau t u xay dung cong trinh khai thac mo dong Ta Phdi, Vien Khoa hpe Cong nghe M6-Vinacomin (2013), Ha Ngi.
KHCNM S 6 12/2014 * CNKT LO THIEN
