KHOA HOC VA CANG NBHE MO J03^ NGHIEN cdu LITA CHON 8 0 0 0 CONG NGHE c a GlOfI HOA KHAI THAC PHU HOP DIEU KIEN D|A CHAT KHU NGR Hni, CONG TV THAN QUHNG HflNH ThS BUI DINH THANH Cong ty TNHH MTV Than Q[.]
KHOA HOC VA CANG NBHE MO J03^ NGHIEN cdu LITA CHON 0 CONG NGHE c a GlOfI HOA KHAI THAC PHU HOP DIEU KIEN D|A CHAT KHU NGR Hni, CONG TV THAN QUHNG HflNH ThS BUI DINH THANH Cong ty TNHH MTV Than Quang Hanh-Vinacomin TS TRU-aNG DUC QU, KS T R A N MINH TI^N Vi^n Khoa hpe Cdng ngh^ Md-Vinacomin hoang sang than Nga Hai C6ng ty Than Quang Hanh quan ly va khai thcic bao gdm 35 v?a than, 15 via than ed gia trj cdng nghiep dugc huy dpng vao khai th^c 1^ via 17, 16, 15, 14 13 12, 11, 10, 7, 6, 6A, 5, 4, 4B va via Trong nhung nam g^n day, Cdng ty da tiln hanh khai thac ph^n tru lup-ng than tu muc -50^LV dong thdi dao cac dudng Id khai thdng chu^n bi cho phSn tru lup-ng dudi mij'c -50, theo "Thilt k l ky thuat khai th^c xudng sau dudi mijc -50 md than Nga Hai, Cdng ty Than Quang Hanh" Cdng ty Cd phan Tu vln Ddxi tu Md va Cong nghiep lap nam 2009 Danh gia so bd cho th§y, tru luo'ng cac khu vue via mong (0.8-2,0 m) chilm khoang 43 % tdng sd 106,4 trieu tin tn> luo'ng dja chit huy dpng vao khai thae theo thidt kd Trong dd, phin tru luong cae khu vuc v?a mdng, ddc thoai ddn nghieng chidm ty le tuong doi Idn (khoang 68 %) tdng tru luo'ng cae khu vuc via mdng huy ddng vao khai thac Hien tai, dd khai thac c^c khu vue via mdng, ddc thoai ddn nghieng, Cong ty Than Quang Hanh dang ap dung so dd he thdng khai thac opt dai theo phuong, khiu than blng khoan nd min, ch6ng giU Id chp blng vi chdng opt thuy lye don, xa khdp San luo'ng than khai thac va nang suit lao ddng cua cac Id chd cdn thip, binh quSn d^t tu 60.000^80.000 tan/nam va tu 2,2^3,5 tin/cdng Ngoai ra, cdng nghe khai thac cdn mdt sd hgn chd khac nhu: qua trinh khai thac dup-c thi^c hi^n hoan toan blng thu cdng d hlu hit cac khau cong nghe; cin nhilu ngudi lam viec guong khai thae, khd khan vi^c nang cao cdng suit khai thac Id chd; dilu kidn lao dpng cong nhan cdn han chi, khdng gian lam vi§c ch?t hep, dgc bi^t K ehieu day vfa giam den 1.4-^1,5 m, viec thue hien eSc thao tac quy trinh cdng nghe se rit khd khan lam giam nang suat lao ddng v^ chat luong than khai thac Theo k l hoach phat triln cua Cong ty Than Quang Hanh san luo'ng than khai thac him Id se tang tu 0,9 trieu tin hidn ddn 1,5 tneu tin vao nam 2015 vdi muc tang binh quan khoang 140.000-150.000 tin/nam Dk dat san ludng than khai thac theo k l hoach, ngoai phan tru luo'ng cac khu vue via day trung binh din day, Cdng ty se phai huy dpng phin \ru lupng tai khu vu'c via mdng vao khai thac (chu yeu la cae khu vye via mdng, ddc thoai din nghieng) Vdi cdng nghe khai thac via mdng, ddc thoai din nghieng hien tai dang ap dung tai Cong ty, viec tSng san luong khai thac ehi cd thl thuc hi#n duoe bang each md them didn khai thae mdi va tang sd edng nhan lao dpng Day la vln d l hit sue khd khan thdi dilm hidn vdi eae md him Id thudc Vinacomin ndi ehung va Cdng ty Than Quang Hanh ndi rieng Tu nhu'ng khd khan tren, Cdng ty cd ehu truong ddi mdi cdng nghd khai th^c via mdng thoai din nghieng va d l nghi Vion Khoa hpe Cdng nghe Md cung phoi hop thuc hien Tren co sd nghien cuu, phan tich, danh gia dac dilm tru' luong, hidn trang cdng nghe khai thac dang ap dgng tai md, nhu cau tang san luong va nhung khd khan thye hidn k l hoaeh dd, Vien Khoa hoc Cdng nghe Md da d l xult ddi mdi edng nghd khai thac via mdng, ddc thoai din nghieng tai Cdng ty Than Quang Hanh theo hudng co gidi hda, hien d?i hda CONGNGHllPMds06-2012 ^J KHOA HOC VA CONG NGHE MO m=U-1.6m GiAhincUtuiUjvu H.3 Moi gidihoa i_ _, _„ 175: b - Miic-50^175 .,_ „ I nang co Mc-50*~ H.I Moi tuong quan tru'lu^ng c6 kha nang ca gidi hoa theo cdc mien chiSu day via: a - Mu-c 50-^175; b - MLK -50-^175 a) «• 20 -• P 10- GI61lung6cd((cvii b) 40 I H.2 M6i tuung quan tru luvng c6 nSng ca gidi hoi theo dc miin gdc doc via: a - MCK -50 ^175; b-M&c-50^175 CANGNGHIEPMOSlfo-ZOIZ H.4 Moi tuang quan trCr iuvng co /(ha nang ca gidi hoa va ago OiSm di tnj via: a - Muc -50*175:b-MiK-50*-17S OS c6 CO sff iM'a chpn m6 hinh ca giOx h6a khai thac cho c4c khu vyc via neu tren, Vi?n Khoa hoc C6ng ngh§ Ua M tien hanh danh gid t6ng hop trii lupng v i dac ailm dieu ki#n dja chit v i lya chon cac khu vyc co kha nSng co gidi hoi theo cac ySu to: kich thu'o'c theo phyong vi hudng doc ciJa khu khai thic; chieu day, g6c d6c via vi muc biSn dong chieu diy, goc d6c; ty 10 ii k?p; tinh chit ii vach vi ii try via KHOA HOC VA CONG NGHE MO Kit qua tdng hop, d^nh gid cho thiy, trii luo'ng cac khu VM'C via mong, die thoai din nghidng cd kha nang co gidi hoa tinh tu- muc -50 ^ day md tai khoang s^ng Nga Hai khoang 7,6 tri^u t i n va tgp trung chu y l u tgi cac via 6, 7, 8, 9, 11, 12, 13, 16, dd, tru' luong mi>c -50+175 khoang 2,5 tridu t i n , trCF luo'ng mi>c 175-^day md khoang 5,1 tri$u t i n Ph§n tich phin tru lup-ng via mdng die thoai den din nghieng c6 kha nSng ap dgng co gidi hda t^i khoang s^ng Nga Hai chi rSng, phin ldn tru lup-ng via cd chilu d^y tu 1.6+2.0 m, gdc ddc tu 18+35°, d^ v^ch va da trg chu y l u thudc loai bin vOng vd on dinh trung binh Bilu dd t h l hidn moi tuong quan tru' luong cd kha nang ca gidi ho^ theo c5c miin chilu d^y, gdc doc via va dgc dilm d^ vach, da trg via duoc t h l hien tren H.I Hidn nay, d l co gidi hda khai thac cdc via mdng thoai din nghieng, cdc md than ham Id tren t h l gidi thudng dp dgng so dd hd thing khai thac liln guong ho$c cdt dai theo phuong Phg thude vao mi>c dp trang bj ky thugt, cdng ngh? eo gidi hoa khai thdc than Id cho thudng duoc phan chia nhu sau: • Ld cho CO gidi hda tung phin: KhIu than blng cdc loai may khIu hoac mdy bao, ching giu Id cho blng cac lo?i vi chdng thuy lye • Ld cho CO gidi hod ddng bp: KhIu than blng cac loai may khIu hoac may bao, chdng giu Id cho blng dan chong ty hanh • Ld cho tu ddng hod: KhIu than blng cdc logi may khlu hoac mdy bdo, chdng giu Id cho blng dan chdng ty hanh Cdc cdng dogn qua trinh khai thac nhu khau guong, chong giO, vdn tai, v.v duoc thye hidn tuin ty theo cdc chuong trinh duoc I0p trdn may tinh d l dilu khiln cac thilt bj phye vg khai thac Id chp- Md hinh 16 cho bdn co gidi hda co uu dilm Id gid trj diu tu ban diu nhd, sdm thu hdi duoc von Nhuo'c dilm ciJa Id chp- ap dgng md hinh ndy la cdng tac di chuyin vd chdng giu vUhIng thuy lye cham hon tie dd mdy khlu, tinh on djnh kem nen se anh hudng tdi san luong khai thdc vd nang suit lao dpng Mo hinh Id chp' co gidi hda ddng bp cd uu dilm la cho phep co gidi hda toan phin cdc qud trinh khlu than, chdng giu' vd dilu khien da vdch, v^n tai than, di chuyin mang cao guong, khlc phgc duoc hgn c h i v l khdng gian (d$c bidt ve chilu cao) khai thdc via mdng, doc thoai din nghieng nen cho phep ndng cao duoc san luong khai thac Id cho vd ndng suit lao d0ng _^^ Nhuo'c diem dp dgng md hinh ndy Id gid trj diu tu ban diu Idn (gIp khoang din lin md hinh 16 cho' co gidi h6a tung phan) Mo hinh 16 chp" ty d0ng hda cd uu dilm la vi$c thye hi§n t i t ca cdc khdu cdng nghd 16 cho dupc thye hidn blng may mdc khdng cin sy can thi?p ciJa ngudi, san luong khai thdc vd ndng suit lao ddng cao Tuy nhien md hinh ndy, mdi dup-c dp dgng thu nghidm d mdt so nudc phdt triln, gid trj d i u tu ban diu rdt ldn, khu vyc dp dyng phai c6 tru luo'ng Idn vd dilu ki§n via I n djnh Ti> cdc phdn tich trdn, Vien Khoa hpe Cdng nghd Md da lya chpn md hinh co gidi hda d l dp dgng cho dilu ki^n via mdng thoai iSin nghieng tgi khodng sdng Ngd Hai Id so edng nghd khai thdc cpt ddi theo phuong, co gidi hda dong bO blng mdy khlu than kit hop ddn ching ty hdnh (so edng ngh§ khai thdc xem hinh H.5) Trong ddng bp thilt bj co gidi thilt bj su dyng tgi 16 eho, ddn chong Id mpt thilt bj thuy lye c6 kha nang ty di chuyin cd vai trd chdng giu vd che chin khdng gian Id cho, Id dilm tya d l djch chuyin mang cdo theo tiln dd khlu guong, kha ndng chju tai Idn va linh ho?t chong giii vdi muc dp an toan vupt trpi so vdi cdc log! vi chdng trudc day Tgi eac Id cho co gidi hda via mdng, doc thoai din nghieng d nudc ngoai chij ylu su dyng dan chong dang dd-chin dd cd nhilu lo^i khdc nhu: v l hinh thCrc c6 loai hai cot hogc bdn cpt chdng vdi mdt hodc nhilu nic piston; ve trpng Xu hudng luong cd logi thudng hoac nho ehung cua cdc mo him 16 tai cdc nudc cd nin edng nghi$p md phdt triln la su dgng ddn chong loai nh^ va kich thudc nhd gpn khai thdc via mdng, ddc thoai din nghidng d l khlc phye cdc hgn chd v l khdng gian va khd khan qua trinh van chuyin, lip ddt Dk cd CO sd tinh todn hidu qua kinh t l cua cdng ngh^ va d l phu hop vdi md hinh co gidi hda lya chpn, Vidn Khoa hoc Cdng nghd Mb da tgm lya chpn ddy chuyin thilt bj co gidi hda khai thdc Trung Quoc san xult gdm: may khau MG132/320-WD, ddn chdng ty hanh ZZ3600/14/22, Z23600/16/26 mdng cdo SGZ630/132 mdy chuyin tai SZZ730/75, mdy nghidn PLM500, bdng tai DSJ80/40/2x40 va trgm bom dung djch nhu hda logi BRW200/31,5 Ogc tinh cua cdc thilt bi chinh day chuyin duoc t h l hidn trdn cdc Bang 1, Ngodi dong bp thilt bi neu tren, qud trinh triln khai Idp dy dn Vidn Khoa hpe Cdng nghd Md se tilp tue xem xet, khao sdt d l lya chpn dup'c thilt bj cd cdc thdng sd kJ thu§t uu vidt hon CflNG NGHIEP MO Sd 6-2012 WM 1^^ KHOA HQC VA GANG HGH| MO Bing Die tinh t Apatit thdng qua cdc ylu to KHKT va hi^u qua kinh t l cua qud trinh, nhdm giam gia cho khdu san xult nguydn lieu (tuyIn qudng) ma vln dam bao chit luong cua san phlm Ridng dli vdi thulc t^p hoP tuyIn qudng Apatit lo^i II Ldo Cai, tO" axit bdo nguon glc dau md dpng thye vdt, tu cdc phdn dogn axit bdo dup-c tdch sau qud trinh oxy hda parafin, cd the nghidn ci>u dilu chi cdc l09i thudc tuyIn cd tinh tdp hop vd chpn Ipc ridng cao dgng axylaminoaxit AAK, Flotol-7.9, AER06493 Ddy Id nhu'ng lo^i thulc tdp hop dd duoc dilu che thu nghiem d mdt s6 nudc tren thl gidi d l tuyen Bang Mot so chi tidu kinh te ky thudt eua edng qudng Apatit-Cacbonat cho kit qua rIt kha quan Hy vong vdi tdm huylt cua cdc nhd khoa hoc, nghd (Tinh trudng hpp sd dung ddng bd thiet sy quan tam thich ddng cua cdc co quan quan ly' bj cua Trung Quoc) nhd nude, cua cdc doanh nghipp, vi tuong lai nin Dan vj S6 luo'ng ndng nghipp nudc nhd, vide san xult thuoc tdp Tdn chi tidu hop tuyIn qudng Apatit loai II Ldo Cai va nghien T/ndm 200.000 Cdng suit 16 chp' cuu tuyIn qudng Apatit II Ldo Cai se cd nhung kit 15.6 T/cdng Ndng suit lao ddng qua mdi tdt hon, giai quylt duo-c vln d l cdt Idi Id 18,8 Ton thIt than Iheo cong ngh§ chit luong qudng tinh Apatit, dam bao cho san xult phdn bdn chat lup-ng cao.n :Ty ding 117,7 T6ng mCrc dau tu 59,9 Ty dong Lpi nhu$n rdng (Pn) Ngudi bien tap: Tran Van Tr^ch 5,7 ndm Thdi gian hodn vln % Cdc kit qua phdn tich vd tinh todn tren cho, so vdi cdc cdng ngh$ hidn dang dp dyng tgi Cdng ty, cdng ngh$ co gidi hda khai thdc ddng bp blng mdy khlu vd dan chdng ty hdnh se cho phep nang cao san luo'ng khai tu thdc 2,0^2,5 l i n , nang suit lao ddng tdng 3-^5 lin Vide dp dgng cdng nghd co gidi hda khai thdc phu hp-p cho dilu ki^n via mdng thoai den nghieng tgi Cdng ty Than Quang Hanh Id vln d l c i n thilt Kit qua nghien cuu dd d l phuong hudng d i u tu vd phat triln cdng ngh^ nhIm ddp muc dp tdng truong cho md cdc ndm tdi.n Ngwdi bien t$p: Vd Trgng Hung The paper Introduces the study results of choosing the proper technology scheme for coal exploitation In real geological conditions in Nga Hal, Quang Hanh Coal Company The paper Introduces the main study results on processing for sort apatite ore in Lao Cai mine The author suggests the opinion of the general view for the exploration, exploitation and using for, apatite ore in Viet Nam C6 hoc roi m61 co tri thCrc; c6 tri thu'c roi mdi c6 phuang phdp Tdn Vin Mudn cau tien han ngudi, ddi phai biet ngudc mdt nhin trdi Vi nhin xudng ta thay hdn, nhung nhin len ta chi la so' khdng vtdai Francos Mauriac D61 lijc, cdi ma ngudi ta cd duac tU nhOng cdng viec cda minh khdng phai la tien bac, ma la nhijng bai hoc qu^ bau C S/oc/( V VTHswutam j C0NGNGHI|PM0StE-2012 ... 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