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û KHOA HOC VA CONG NGHE MO NGHIEN CUU TUYEN QUANG GRAPHIT KHU VUC YEN THAI, Xfl V€N THAI, HUV€N VAN V€N, liNH V€N Bfli TS PHAM HUTU GIANG, KS PHAM THj NHUNG, TS NHUT TH! KIM DUNG, ThS LE VIET HA Trwd[.]
^u_ KHOA HOC VA CONG NGHE MO NGHIEN CUU TUYEN QUANG GRAPHIT KHU VUC YEN THAI, Xfl V€N THAI, HUV€N VAN V€N, liNH V€N Bfli TS P H A M HUTU G I A N G , K S P H A M T H j N H U N G , TS NHUT T H ! K I M D U N G , T h S L E VIET H A Trwdng Dal hge Md-Dja chat i | heo Quy h o g c h phan vung t h a m d d , khai I thdc, ehd bidn va s i f dung n h d m khoang " c h i t cdng nghiep (serpentin, barit, grafit, fluont, bentonit, diatomit v a talc) d i n n a m 2015, CO xet d i n nam 2025 da d u g c Bd C d n g T h u a n g phe duyet, nhu c a u q u a n g graphit t h u a n g phdm den nam se la n g h i n t i n , n a m 2 la 30 nghin t i n va d e n n a m 2 la 35 n g h i n t i n Khu q u a n g Y e n Bai eo tru' l u g n g khoang 1,3 tneu t i n , bao g d m cac d i l m q u a n g , Bao Ha, M a u A va Y e n Thai D i l m q u a n g B a o Ha ed 21 than q u a n g , d i l m quang M a u A x a c dinh d u g c 16 d i l m q u g n g v a d i l m q u a n g Y e n T h a i c d than q u g n g D l c d t h d x a y d y n g d u g c x u d n g tuydn q u g n g graphit k h u v u c Y d n Thai c i n t i l n hanh nghien eifU edng n g h e t u y i n q u a n g M d u t h i n g h i e m Mdu nghien c u u cd k h l i luang mau 500 kg Mlu dua gia edng d l l l y mdu phan tich hoa toan phdn, m l u phan tich ray va mau thi nghidm K i t qua phdn tich ray v a phan tieh hda cae c i p hat cho d Bang va k i t qua phdn tieh hoa toan phdn mdu d i u eho d Bang Bang Thanh phin hat va ph in "Ida hoc cac dp hat Thu hoach % rCap hat "' mm LQy tich 86 phan 17.19 17.19 + 50 36.64 19.45 10-50 51.27 14.63 3-10 13,08 64,35 1-3 76,90 12,55 0.5-1 7.83 84.73 0.2-0.5 15,27 100.00 -0.2 100.00 Cong Cacbon % Ham u'ong Luy tich 11.88 11,88 12.5 13,05 12.08 12,38 13,36 12,58 13.25 16,68 13,8 19,2 13,45 11,49 13,45 Tro % LQy tich Ham lu'ang 83,45 83,46 82.42 81,51 82,63 83,14 82,38 81,4 81,4 76.37 73,09 80,63 81,3 85 81.3 Chit boc Lu'u hui'nh' % % 0.07 0.06 0.06 0.05 0,04 0.03 0.05 0,06 5,42 5,38 5.4 4.71 3,77 2.16 3.95 4,62 : : ; J • Bang Thanh phan hoa hoc mau dau Ter mau Ma udau Chit b i c % V: 4,86 Cacbon % 13.06 Nhan xdt: K i t qua phan tich ray va phan tich hda quang dau cho t h i y : • Quang d i u phan bd t u a n g ddi d i n g d i u d eac e l p hat, neng d p hat 0,2-^0,5 m m ed thu hoach thdp h i n ; • H a m l u g n g cacbon phan bd t u a n g doi ddng ddu d cac d p hat, rieng hai d p hat 0,2^0,5 mm va 0,5^1 mm hdm l u g n g cacbon cao h a n n h i l u so v d i trung binh; C N G NGHIEP MO SO - B9tro9681,® ,, LU'U t\mitS& '1 0,05 a •:• Ham l u g n g ehdt bde m l u kha eao va tiSin luang luu huynh cd m l u d mire trung binh T h i n g h i d m t u y d n n o i d i d u k i e n Trong nghien cifu da t i l n hanh thi nghidm tuyin m didu kidn, trdn nguyen t i c ehi thay ddi mgt didu kidn c6n cae didu kidn khac c l dmh Cac thong so nghidn cim chon c h l tuydn ndi tdi u u la: Nghien cuu anh huong eua dd nghiin; anh h u d n g cua nong dp pha rSn trang bun; anh hudng cua chi phi friuoc tap hgp v^ anh hudng cua ehi phi thudc tgo txpt Thudc d i l u chlnh pH KHDA HOC VA CfiNG NGHE MO diing Na2CQ3 tri d dp pH 7-^8 Nhan xet: Kit qua thi nghidm tuydn ndi didu kien da ehpn duge cac thdng so tuyin ndi tdi uu nhu sau: • Dd hat qudng dua di tuyin nli co ham lugng d p hat - 0,074 mm chidm trdn 77 %; • Nong dd pha rin bun tuyen ndi tdi uu 175 g/l; •:• Chi phi thude tap hgp (ddu hda) 1000-^1500 git •:• Chi phi thude tao bot (ddu thdng) 100-150 g/t 6" dilu kidn tuydn ndi tdi uu eho phdp lly qudng tinh graphit cd ham luang tro 45,95 %, thue thu phdn chay trdn 77 % Quang dudi cd ham lugng tro dudi 10 % Thi nghiem s c dd vong hd 3.1 Thi nghiem chgn s6 khau tuyen tinh Di nang cao chit lugng quang tinh graphit ed ham lugng cac bon > 82 % co thd cd cac phuang an edng nghe tuyin nhu sau: quang tinh tuyen ehinh dua di tuydn tinh lan, nghidn lai quang tmh tuyen chinh sau tuyin tmh lln, nghiin lai quang tmh tuyin tinh sau tuyin tmh tilp lan nira Kit qua thi nghidm eho d eae Bang 3, 4; Sdng Kit qua thi nghiem tuyin vdng vdi khau tuyin tinh San phim Thu hoach % Bo tro % Quanq tinh TG4 TG3 TG2 TG1 Dudi Quang diu 14,95 0,4 1,02 2,28 6,72 74,63 100,00 13,25 62,13 73,76 79,54 87,29 92,89 79,98 Nhgn xet: Tif s6 li^u cde Bang 3; 4; cho thdy: chi ein mdt khdu tuyin chinh vd b i n khau tuyin tmh, da cd t h i l l y duge quang tinh graphit ed hdm lugng phin chay >82 %; niu qudng tinh tuyin chinh (hoac qudng tinh tuydn tinh 1) Phin chay % Thu'C thu Ham lu'o'ng 86,75 64,79 37,87 0,76 1,34 26,24 2,33 20.46 4.27 12.71 26,51 7,11 20,02 100,00 I j dua nghidn sau dd tuyen tinh bdn lan (hoac tuydn ba ldn) se thu duoc quang tinh graphit cd ham lugng phin chay >90 %, Phuang an nghidn lai quang tinh tuyin chinh cho thyc thu phin chay cao han phuang an nghiin lai quang tinh tuydn tinh Sdng Kit qui tuyin tinh cd nghiin lai san pham quang tmh tuyen chinh Th&i gian nghien San pham Thu hoach % Do tro % Nghiin 20 phut Qu^nq tmh TGI TG2 TG3 TG4 Quanq du6i Quang diu 13,23 0,32 1,12 2,35 7,48 75,5 100,00 6.8 55.14 70,3 73,47 83,87 93,48 80.44 Phin chay % Thi,fcthu Ham luonq 93.2 63.04 44.86 0,73 29,7 1.7 26.53 3,19 16.13 6,17 6.52 25,17 19.56 100,00 I 1 Bing Kit qui thi nghigm nghien lai tinh quingtuyin tinh San phim Thu hoach % 06 tro % Quang tinh TG4 TG3 TG2 TGI Du6i Quang diu 11.63 0.26 0,67 1,94 6,4 79,2 100,00 9,24 42.18 56,9 73,26 83.13 91,11 80,4 Phin chay % Ham lu'ong Thuc thu 90,76 53.86 57,82 0.77 44,1 1,28 26,74 2.65 16.87 5,51 8.89 35,03 ••.•Sj-r' 19,6 ' 100,00 CfiNG NGHIEP MO SO - 2013 ^| ! i ^^_ KHOA HOC VA CONG NGHE MO 3.2.Thi nghiem chgn so khau tuyen vet D l nang cao thye thu cac bon qugng tinh can tiln hanh tuydn vet vdi cac phuang an sau: them den Ijhau tuyin vet; Nghiin lai qudng duoi tuydn ehinh d l tuyin vet Kdt qua thi nghiem chon sd khdu tuydn vet cho d cae Bang 6, Bang Kit qua thi nghiem cd mdt khiu tuyen vet San phim Thu hoach % Do tro % Q tinh TC Q tinh TV Q duoi Quang dau 27.92 3,06 69,02 100,00 42,72 78,27 93,62 78,94 nam luong phan chay % 57,28 21,73 6,38 21,06 Thuc thu phSn I chay % ; 75,94 3,16 j 20,90 100,00 Bang Kit qua Ihi nghiem c6 ha! khau luyen vet San ph am Quang tinh TC Quang tinh TV1 Quang tinh TV2 Quang duoi Quang dau Thu hoach % 06 tro 25.61 3,13 1,38 69,88 100.00 42,02 75,26 81,68 93,76 79,76 Phan chay % Ham luong Thyc thu 57,98 73,37 3,83 24.74 1,25 18.32 21,55 6,24 100,00 20,24 Bang Kel qua nghiin va luyin luyen vet quang duoi luyin chinh Thoi gian nghien 10 Ten san pham Q tinh TC Q tinh TV Q duoi Quang diu Thu hoach % 27,67 3,49 68,84 100,00 Do tro % 43,09 78,89 94,58 79.79 Nhan xet: Tir sd lieu eae Bang 6, 7, eho thay: Trong ba phuang dn tuyin vet, phuang an nghidn lai quang dudi tuyen ehinh sau dd dua tuyen vet cho ham lugng va thuc thu phdn chay san phdm dudi cd gia tri thip nhdt Tuy nhien vide nghidn lai san phim dudi tuyin chinh se lam tang vdn diu tu va tang ehi phi san xudt Thi nghiem vong kin Di thi nghidm vdng kin, nghien cifu da chon ba phuang an edng nghe tuydn sau: • Phuang an 1: Gdm mdt khau tuyin chinh vdi khdu tuyin tinh vd mot khau tuydn vet khdng nghiin qudng tinh va quang dudi San phim dudi eua cae khau tuydn tmh va san phdm tinh cua khdu Ham luong phan chay % 56.91 21.11 5,42 20,21 Thuc thu phan chay % 77,91 3,65 18,46 100,00 : tuyen vet dua tuydn rieng • Phuang an 2: Gom mgt khdu tuydn chinh v6i khau tuyin tmh va mot khau tuydn vet, khong nghiin quang tinh va quang dudi San phim duoi cua cac khau tuyin tinh va san phim tinh cua khSu tuydn vet dua vao tuyin chinh •:• Phuang an 3: Gdm mgt khau tuyin chinh voi khau tuyin tinh va mdt khau tuyin vet, cd nghiin lgi qugng tinh tuydn chinh San phim dudi ciia cac khau tuyen tinh va san phim tinh eua khau tuyen vet ggp Idm mdt sau dua v l khau tuyin ehinh tuyin lgi Kit qua thi nghiem cho thay so dd thi nghidm phuang an vd tdt hon ca Kit qua thi nghidm cua phuang an va cho d Bang vd 10 Sang Kit qui tuyin noi so vdng kin sa phu-ang an Ten san phim Thu hoach % 06 tro % Quang tinh Quang duoi Quang dau 14,71 85,29 100.00 14.22 91,09 79,78 CdNG NGHIEP MOSA 5-2013 = = ^ _ Ham luongCacbon % Thuc thu J 84,36 71,90 5,69 28,10 17,26 100,0P , J _^^ KHOA HOC VA CONG NGHE MO Bing 10 Kit qui tuyen nil sa dd vdng kin theo sa phifong in Tdn san phim Quang tinh Qudng dudi Qugng dau 13,78 86,22 100 Ham luang 90,11 5,67 17,31 8,9 91,73 80,32 Thue thu 71.74 28,26 100,00 1 MiudJbi (0)N^Q Tuyfei chlDti r •Riyfomih X Tu>^n>€t TUY&itinh2 QitSngduOt Tuyfatiiib3 :v Tuy&itinli4 ^ ^ ': '^ t t Qiiffnjjtinh H So cdng nghi tuyin lay quing tinh graphit cd him luang cacbon >82 % h MSu d&i NaXOj — D^u bAa — Dau tboDg - w'fe r Dau hoa Daa tbong X H.2 Sa dd cdng ngh$ tuyen iiy qu^ng tinh graphit c6 ham luvng cacbon >90% Nhin x6t: Dua vao s6 li$u cSc Bang va 10 c6 mOt s6 nh|ln xSt sau: *•* Quang tinh phuong an c6 d0 tro 14,2 %, tuong ij-ng vdi ham luvng cacbon tr§n 84 %; qujng tinh phuong an cho di tro 8,9 % vd\ CfiNG NGHIEP MO SA 5-2013 ^jl_ KHOA HOC VA CfiNG NGHE MO ham luang cacbon tren 90 %; •> Thye thu cacbon quang tmh cua phuang an va phuang an tuong tu nhau, dat > 70 %; • Ham lugng luu huynh va chat bdc qugng tmh eua cac phuang an diu thdp, • Ham lugng cacbon san phdm dudi cua hai phuong an ddu tren % • Vdi hai sa edng nghe tuyin da chgn ci phep lly dugc quang tinh graphit dgt tidu chudn G p theo Tieu ehuin Viet Nam, dung cho san xuit pin.n Ngwdi bien tap: Tran Van Traeh Yen Thai graphite deposit is one three largest ore deposits of Yen Bai province In order to obtain initial data for the study of large samples and design of the processing plant, the authors have studied technology for processing of ore samples with the following contents: matter composition of the samples; conditioning froth flotation; open circuit flotation and close circuit flotation Base on the results of the study, optimal flotation regime has been chosen Close circuit flotation had permitted to gain a graphite concentrate of 84-90 % purity and of more than 70 % yield Ket luan • Kit qua thi nghiem luydn ndi dilu kidn da ehpn duoc eae dilu kien tuyin ndi toi uu •:• Kit qua tuyin ndi sa do, cho phep ehgn dugc sa dd cdng nghe tuyin tdi uu nhu sau: + Phuang an tuyin lly quang tmh graphit ed ham luang cacbon tren 82 %, d n mdt khau tuyen ehinh, bin khau tuydn tmh va mgt khdu tuydn vet, sa dd cdng nghd nhu hinh H.l; + Phuang an tuyin lay quang tinh graphit cd ham tuang cac bon trdn 90 %, ein mgt khau tuydn chinh, bin khau tuyin tmh va mgt khau tuyin vet, cd nghiin lai quang tinh cua tuyin chinh so dd cdng nghd nhu H 2; MOT SO GIAI PHAP CONG NGHE (Tii'p theo trang 49) Bao cao "Nghien eCfu tinh kha tuydn quani sit mo sit Kip Tudc" Vien KHCN Mo- TKV 2009 Bao cao "Nghien euu tinh kha tuydn qu|ni sit mo sat Na Lung" Vien KHCN Mo-TKV 2008 ehi phi san xuat cac thilt bi va phu timg cua may Igc diu phai nhap tir nudc ngoai Ngwdi bien tip: Tran Van Trach Kdt luan Di nang cao nang suit, giam gia tuyin chl biln quang sit tai eac mo nho phia Ble Viet Nam cdn thidt tidn hanh lua chpn sa d l edng nghd thilt bj tuyin dong bd hgp ly, eong nghe co gidi hda tifng khau cho phu hgp vdi tirng mo Dae biet d n quan tam cdng tac ca gidi hoa khau dap quang thd, khau xu ly lam rao nudc tinh qugng nhlm nang eao nang suit lao dgng, giam thidu d nhidm mdi trudng Trong sa dd cdng nghd tuydn d n dua dp dung khau tuyin trgng lye (kit hgp vdi tuydn tir trudng dd tif trudng eao ndu dam bao hieu qua kinh tl) nhlm tan thu t l i da tai nguyen hg gia san xuit va giam thilu d nhilm mdi trudng D TAI LIEU THAM KHAO Od tai "Nghien euu cong nghe tuyin tan thu quang sit d p hat nhd va mm bim thai eua eac xudng tuyin quang sit d eae md Sin Quyin, Na Lung" Vidn KHCN Mo-TKV 2008 CtNG NGHIEP MO sA - The paper's authors introduce some proper technological mechanical solutions ore with small size J Phai Cham lo si; khoe manh cOa than the de 915 gin sir Idioe manh cGa tr( tue Vauvenargues Moi cong viec dat d ^ nhd sir Iden tri va long say me Ngan ngO Tay Ban Nha Nhiem vij quan nhSt cila ngudi la song va mang den cho minh cung; ngi/di than ciia minh nhOfng phijt giay binh dam cim Ngan ngCfChau Phi \ , VTH s(rt/ tAllJ~ ... nghi tuyin lay quing tinh graphit cd him luang cacbon >82 % h MSu d&i NaXOj — D^u bAa — Dau tboDg - w''fe r Dau hoa Daa tbong X H.2 Sa dd cdng ngh$ tuyen iiy qu^ng tinh graphit c6 ham luvng cacbon... tuyin da chgn ci phep lly dugc quang tinh graphit dgt tidu chudn G p theo Tieu ehuin Viet Nam, dung cho san xuit pin.n Ngwdi bien tap: Tran Van Traeh Yen Thai graphite deposit is one three largest... quang tmh graphit ed ham luang cacbon tren 82 %, d n mdt khau tuyen ehinh, bin khau tuydn tmh va mgt khdu tuydn vet, sa dd cdng nghd nhu hinh H.l; + Phuang an tuyin lay quang tinh graphit cd