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KHOA HOC KINH TE VA QUAN LY NGANH MO SAN XUAT QUANG CAU VIEN in A/ioT Gim PHnp sir D U N G Hifu o u n QUANG SAT NGHEO CAC TINH PHIA BAC TS NGHIEM GIA - Hgi KHKT DOc Luyen kim Viet Nam GS.TSKH B O I V A N li/IU'U - Dai hgc Bach Khoa Ha Ngi KS TRAN TRONG MANH - TCty Thep Viet Nam-CTCP (VNSteelJl Sir can thiet phai thirc hien dau tu* DIP an quang cau vien Theo bao eao "Danh gia cdng nghe san x u i t gang thep cua T h i gidi va Viet Nam" [4], [5] cho thiy xu t h i hien "SCP dung lieu chin la quang thieu k i t va quang c i u vien lam nguyen lieu cho san xuit gang Id cao r i t blln va cd hieu qua" vi cae ly sau day: • TLP thap ky 60 qua trinh khai thae va tuyin quang sat tren T h i gidi da tao nhilu san pham quang tinh sat hat mjn (0,047 mm) D l su- dung hieu qua ngudn quang tinh "Cdng nghe san x u i t quang d u vien" da du-pc nghien CCPU va sis dung, d i n dupc ap dung rpng rai d nhieu nudc Cac nha Luyen kim T h i gidi nhan djnh "The ky XXI la ky nguyen SLP dung nguyen lieu chin (quang d u vien va thieu k i t ) d l san x u i t gang 16 cao d nhilu nudc phat trien tren T h i gidi", s l lieu dupc neu Bang Bang Ty le sir dung quang ciu vien san xuat gang Id cao aAu-My (Ngudn VSA, VNSteel 2015) C^c nudc Au My Thuy D i l n My DCPC Ha Lan Phan Lan B? IBF (Anh) Ty le phoi lieu, % Quang Quang Quang thieu k i t d u vien cue song 97,2 2,3 0,5 85-80 15-20 60,3 28,5 11,2 50,7 46,9 2,4 75 25 85 13 62 31 • Quang d u vien cd mdt s l diem uu viet han so vdi quang thieu k i t : > SLP dung dupc hieu qua quang tinh sat c i p hat mjn (0,047 mrn) N l u dung quang tinh sat hat mjn de san x u i t quang thieu k i t se lam cho tfnh t h i u khf cua Idp lieu kem, giam c h i t lupng va giam nang s u i t san x u i t quang thieu k i t ; > v l tfnh nang luypn kim; Quang c i u vien tot han quang sat thieu k i t quang c i u vien cd c d hat d i u , ham lupng sat cao, tinh hoan nguyen tdt, Khi SLP dung quang e i u vien san xuit gang Id eao se giam cac tieu hao C i c , giam lupng phun than va dien nang, tang nang suit Id eao, CONG NGHllP MO S - 2017 He s l Id t/m3 Ch? tieu tieu hao Ham lupng Tieu hao lieu,kg/t Fe, % 457 66 2,11 466,2 60 2,9 439 62,5 2,32 470 59,5 Thuc t l Tap doan Thep Hda Phat da SLP dung 20+25 % lupng quang d u vien lam nguyen lieu san x u i t gang Id cao d Hai D u a n g Cdng ty Khoang san Viet Trung (VTM) eua Tong Cdng ty Thep Viet Nam-CTCP (VNSteel) cung da sudung 15+20 % lupng quang c i u vien d l nap vao Id eao d Lao Cai, k i t qua eho t h i y "nang suit chay Id tang cao han, tieu hao nang lu-png giam va gia san x u i t gang da giam r i t dang ke" Han t h i nu-a viec su- dung quang c i u vien se lam giam ap luc t r i m trpng t h i l u quang sat manhetit tai cac doanh nghiep (DN) s5n xuat gang Id cao d Viet Nam KHOA HOC KINH TE VA QUAN LY NGANH MO Tren ca s d phan tich so lieu ve cdng nghe san x u i t va su- dung quang cau vien tren The gidi va Viet Nam cho t h i y viec dau t u "Du an san x u i t quang cau vien" (Du- an) la het su-c c i n thiet nham chu ddng cung c i p du nhu d u quang sat manhetit cho luyen gang Id cao va luyen thep id dien cho cac DN cua nganh Thep Viet Nam giai doan tru-dc mat va lau dai Cac dieu kien thiPC hien dau tu- DIP an san xuat quang cau vien 2.1 Co du dieu kien ve nguon quang cung cip cho Dw an sat a Yeu cau chat lumig quang sat dau vao cho an De dam bao san p h i m quang c i u vien cd c h i t lu-png cao va kich thu-dc vien dong deu, yeu c i u quang tinh sat (nguyen lieu chinh de san x u i t quang cau vien) phai cd phai cd ham lu-png Fe>66 % va c d hat mjn 0,047mm c h i l m tren 70 %, chi t i l t neu Bang DIP Bang Yeu ciu chit lirang quang tinh sit de san xuat quang ciu vien Nguyen Phan Co hat I lieu dau loai (0,047mm) quang chiem, % vao Quang Loai I tinh sat nanhetit Loai II Thanh phan hoa hpc ca ban (%) Zn TFe Si02 AI2O3 a 80,0 >62 S5,5 s l , S0,80 < 0,10 < 0,080 >70,0 S60 Tren t?nh Yen Bai hien cd 06 doanh nghiep da dau tu Nha may nghiin tuyin vdi t i n g cdng suit lap dat tren 1.200.000 t i n quang tinh sat /nam va hien tai cac doanh nghiep da san xuit dupe 500.000 tin/nam; > Tren t?nh Phu Thp hien cd 04 DN da d i u tu Nha may nghiin tuyin vdi tong cdng suit lap dat Cr+Mn Cu+Pb Ti+V Na+K+ As+Sji S1.0 Dap u-ng nhu d u d p bach thilu quang manhetit cua cac DN nganh Thep Viet Nam hien (nhu VTM va TISCO la hai dan vj thupc VNSteel dang r i t c i n quang s i t manhetit); > San p h i m quang d u vien cliac c h i n da cd nai tieu thu on djnh va lau dai vdi s l lupng kha ldn (trudc m i t cap cho id eao cua VTM va TISCO, sau nam 2017 se d p cho Dy an thep eua FORMOSA vao hoat ddng); > Tai thdi d i l m hien cd Ipi t h i gia d i u vao cho Dy an t h i p (do cae gia quang tinh sat t h i p ya de thu mua) Han t h i nu-a, viec c i m xuit khiu quang s i t chic chin se dupe Nha nude quan ly chat ehe han d i n "Nha may qugng c i u vien" vao hoat dpng se thu hut dupc ngudn quang tinh tLP cac doanh nghiep quang sat tren tinh Yen Bai, Phu Thp va Ha Giang; > Tao cdng an viee lam cho tram lao ddng cua dja phuang va doanh nghiep Tuy nhien, de tranh rui ro quyit djnh d i u tu cac DN d n phai xem xet cac y l u t l b i t Ipi cua Dy an nhu (gia quang s i t va quang d u vien tren T h i gidi hien dang r i t thip; Mpt s l chi phf c i p quyln khai thac, chi phf bao ve mdi trudng phat sinh tang, ) va phai t l l n hanh cap nhat s l lieu, tfnh toan lya chpn cdng suit thilt bj, tfnh toan hieu qua kinh t l cua Dy an (IRR, NPV) mdt each d i y du va toan dien TLP cac thdng tin neu tren cho thiy, viec xay dyng Dy an san xuit quang e i u vien ed y nghTa r i t quan trpng d i i vdi hoat dpng khoang san cua Viet Nam vi Dy an da SLP dung hieu qua nguin quang sat ngheo (ham lupng Fe thip) d cac tinh miln nui phfa Bac Viet Nam ma lau chung ta ehua ehu y tdi.O TAI Lieu THAM K H A O "Quy hoach tham dd va khai thac quang sat Viet Nam den nam 2020, cd xet d i n nam 2030" theo Quyit djnh s l 2185/QD-TTg 05/12/2014 cua Thu tudng Chfnh phu Nghiem Gia va nhdm tac gia Bao cao "Chiin lupc quang s i t cua Tong Cdng ty Thep Viet Nam CTCP giai doan 2015-2030" Ha Ndi 2015 Nguyin Van Sua, Nghiem Gia va nhdm tac gia "Bao cao nghien CCPU thj trudng quang sat Viet Nam den nam 2020" Ha Npi nam 2003 Metal Bulletin "Far East Iron & Steel Conference" 2010-2015 Ban tin Hiep Hdi Thep Viet Nam - VSA (cac so nam 2013-2015) Bao eao nghien CCPU thi trudng va nang lye san xuit quang d u vien d Viet Nam eua Cty Tang Shan Jin shida Technology & Trade Co., Ltd Ha m CONG NGHIEP MO S - Ndi nam 2015 Ngu'O'i bien tap: Tran Van Trach TiJ- khoa: quang sit; manhetit; ham Iwang sit; quang ciu vien; Ngay nhan bai: 10-08-2016 Ngay duyet dang bai: 14-12-2016 SUMMARY Magnetite iron ore resources of Yen Bai, Phu Thp, Tuyen Quang, Ha Giang provinces, are pretty big Although the ore has low iron content but characteristics of one in mines above are suitable for producing the feedstock to furnaces This information will clarify the requirements for the best solution to effectively use the poor iron ore in mountainous provinces in Northern Vietnam Oe tra vT nhan, c i n phai lam viec 99 % William Faulkner (ch ky khong phai la t y yeu minh ma la ty dam me minh mot each vd trat ty Aristote C h i p nhan khdng cd nghTa la nhin nhan Rabindranath Tagore Ra di la phu-ang tien n h i t de tdi nai Ch? cd nhu-ng chuyen du lich nho mdi cd gia trj Morand Paul Mpi s y t i i n trien Idn khoa hpc d i u phat sinh tu- mot s y bao dan mdi cua tri tydng typ-ng Dewey Muon cho n g y d i khdng nghe chang gi bang dCpng ndi, mudn cho n g y d i khdng biet Chang gi bang du-ng lam Han Thw Noi budn tinh yeu khdng nhCt-ng vi tinh yeu khong the b i n lau ma cdn cd nhOng t h i t vpng nd tao da bj quen lang qua nhanh William Faulkner Mdt canh ddng que xa hoa rye ma hoa ngu sac va hoa lan khdng ndi len du-pc t i i n g ndi cua minh giO-a cupc hoa t i u dien cudng cua mui h y a n g Cocteau Jean VTH swu tam
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