Thong tin khoa hpc cong nghe m o V MQT SO \ KIFN \ E CONG NGHE XL LY BL N CHO CAC MO TH \ \ LO THIEN SAr VIET NAM TS Doin Vfin Thanh Hen Khoa hgc Cdng nghi' •^'" - Vinacomin Bien tgp: TS Luu I an Tliftt Tom tat: De ddo sdu khai thdc than, mo phai ddnh nhieu thai gian cho cong ldc ngo vel khdi bun, thai gian xuly bim chiim phan lan thai gian ddo sdu khai thdc than De ddp ung yeu cdu ve sdn lirgng thi cdng tdc ngo wt bim phii hgp la mgt khau cdng nghe quan trgng Bai hdo trinh bdy mgi so cong nghe xic ly hiin dang du^rc ap dung tgi ctic md ihan Ig thien ldu Vi^t Sam Mo'dau Dgc diem cdc mo than Ip thien khai thac xu6ng s^u d Vi§t Nam nhu sau: Khai thac than dub"! muc thoat nudc ti/ chay va theo mua (tCf th^ng 11 nam Xnsdc den thang nam sau) Cang xu6ng sau, cong tac khai thac bj anh huong nhi^u boi cac yeu to bat loi nhu: Nuoc mua, nudc ng^m, bun, dieu ki^n on djnh bd mo cang x^u di v.v MQt nhiing khd khan cho cdng tac xu6ng sdu Id anh huong cua luong bun dat chipa d ddy moong Oe cd the tien hdnh ddo sdu ddy md, c^n phai xi> ly khoi luong biin dSt tr§n ki$n khoi bun: phin, cd hgt, chilu ddy, mang hg ting Trong nhu'ng nam qua d Vipt Nam da cd m^t so nha khoa hpc, c6 tdc gia da quan tdm nghien ciju vd giai quylt duoc m0t s6 v^n de khd khan tr§n cua cac md than Ip thien D$c bi§t cdc v i n d l ddo sau, xu ly bun d ddy moong sau mdi miia mua phii hp-p vdi dilu V\^n cua tipng md Vi v|y, de ddm bdo hodn thdnh k^ hoach san lu'png theo Quy hogch, can thilt phii nghien cuu, lya chpn cdng ngh§ xir ly bun v^ ddo sdu hpp ly cho cac md than Ip thidn sdu Vipt Nam Ben cgnh do, cdc md than 10 thi§n ndm vung c6 luong mua Idn Cdc tr§n mua vdi vu luong mm da hinh thdnh cac ddng chdy mgt trdn bd md Chung chdy qua cdc sudn vd mgt tdng dang khai thdc, cu6n theo dat dd va than xu6ng ddy md Idng dpng bun NhO'ng trgn mua Idn, d|c bi$t Id trdn mua Ijch su cuoi thdng d^u thdng ndm 2015 da gdy hi^n tuong xoi Id, sgt tnjpl bd md ldm tran xuong ddy md khong chl cdc hgt md cd dat dd cd kich thudc Idn tu cdc tang dudi muc thoat nudc ty chay, tham chi cd cdc tslng tren Bun tgi ddy mo c6 cd hgt chu y^u tu 0+15 mm, ph^n gom set, cdt, than trdi Chieu ddy bun phu thupc luong mua vd cudng dp mua, kich thudc cdc ting dudi ddy mo Ode diem hinh hpc cua cdc mo than Ip thien cd dgng tren sudn nut, dudi moong sdu De khai thdc than cin xuc hit Idp biin phu tren day md sau m6i mua mua Vdi kich thudc cdc tang dudi sdu hgn che thdi gian XLF ly bun quylt djnh phan Idn thdi gian ddo sdu khai thac than Mat khac, mdi cdng ngh^ xu ly biin phu hop vdi ti^ng dieu Hi$n trgng cong tac xCr ly biin tgi diy mo if cac md than Ip thien Vl^t Nam Hipn nay, cdc md than Ip thien Vi§t Nam thudng dp dyng cdc cdng nghO xu ly biin t^i day mo nhu sau: Cdng ngh^ xir ly biin bing MXTLGN kit hgp vdi rii dat di lin be m$t bun Cdng nghp ndy duoc dp dyng d m0t s6 md than Ip thien Idn Vipt Nam Bk ip dyng c6ng nghp nay, cdc md thudng si> dyng cdng ngh$ ddo sdu vdi ddy md hai cap Thyc tien hogt dOng sdn xuat tren cdc md than 1$ thidn viing QuSng Ninh thdi gian qua da minh chtpng hi$u qud cOa HTKT cd ddy md hai cap dp dyng cho cdc md khai thdc dudi miPC thodt nudc ty chdy V l miia mua, cdng tdc khai thdc khodng s ^ vd bdc d i t dd chu yeu chi diln d ddy cao (mirc 1) vd cdc ting phia trdn Ody thip (mirc 2) trd ho gom nudc va la noi b l tri phd bcrffl d l tiln hdnh bom thodt nudc cuong birc Sang miia kho, sau bom cgn nudc d ddy md thi sir dyng MXTLGN dung d trdn xiic vdn muartg KHCWI s o 2017 ( o s ( , ^ , , , ^ ^ H ^ , J^^ ^j j^p |_^jg^ Thong tin khoa hoc cong ngh^ mo va ho thu nirdc de treo kho khoi biin Sau thdi gian tir 10+20 ngdy khoi bun da duqrc phoi khd, tien hdnh rai dat dd no ten biin ndm d day cao (mirc 1) vd sir dung may xiic xiic tare tilp luong bun len td chd di Cong tac xiic duoc tien hdnh theo trinh ty xuc ven tir xung quanh vdo giCra cho d i n het khoi biin day md dp dyng cdng nghp ndy chilu day Idp bun xiic duoc tir 2-:-4 m doi vdi biin hat mjn, tir 4+« m d l i vdi biin hat thd Sau xuc h i t lupfng biin tren, tiln hanh ddo sau day md d mirc cao Kit thiic qua trinh ddo sdu ddy md nam, ddy cao duoc ddo sdu hon vd chuyen day thip Mua khd nam sau igi tien hdnh dao sau vd vet bun d mirc Dat da rat tren b l mdt duoc lya chpn md, Id loai khd vd cd kha nang hut nudc tir biin (dd t>pt kit set kit hat mjn) O l t da duoc rai bdng cdch cho d td dd vdo be mat khoi bim vd diirg may ggt san ggt, sau dd diing MXTLGN xiic trpn cd bun vd d i t da bai thai, hit 11dp biin Igi tien hdnh rdi dd den So d l cdng nghp xuc biin d ddy md du'oc the hipn hinh Cdng nghe bcm bun bing tau hut bun len ho ling (md than CQC Siu) Trong thdi gtan tir nam 1991 den 1996 cdc tdu hut bun logi HB-16 cdng suit 300 CV da dupc dua vao ldm vipc cd ket qua d ddy md Bim dupc bom hiit tir Dong ty Nam sang Opng ty Bdc sau dd Igi bom chuyin nguqtc trd lai vd bom len be Idng de thu hoi sir dyng Khoi lupng bim xu-ly len tdi tren 1.2 tripu m^[3],[4] Vdicdng Qj.dnr:! -i-rrn^-[ [ nghp nay, biin diroc bom tir ddy moong len h i tdng ducrc bd tri d cdc mat tang phia tren Trong khoang hon nam bing cac thilt bj chu lyc Id tdu hut bun phoi hop vdi cac thiet bi khai thdc hien cd cua md than Coc Sdu, da vet duoc gan 1.0 trieu m^ bun Tdu hiit biin da chCrng minh la thiet bi phii hgp nhit de vet khoi biin Idn vd day Tuy nhien, ddy la thilt bj diing nganh Thuy Ipfj, dp dyng vao mo than Coc Sdu da phdt sinh nhirng khd khdn nhir: biin lan dat dd cirng c6 kich thuijc Idn, nguon cap nudc khdng on dmh bd md cao Oac tinh ky thuat cua tdu hiit bun HM-16 the hien bang So cdng nghp bom bim Idn ho lang d cdc tang tren t h i hien hinh Trinh ty bom dugc thyc hien nhu- sau: dau tien chpn khu vyc bun hat Idn bom vao xung quanh cira xa de tgo tang Ipc rpng, sau dd chuyin dudng ong bam vdo dau be, d i y den ddu noi ddi Ing d i n d i y tien dan v l cuoi be Vj tri be ling dugc xdy dyng gan khu vyc bom hilt va sat mdt nirdc ddy md d l gidm chilu ddi, chieu cao bam, tilt ktpm chi phi bom Chieu rpng mgt tang toi thieu cd the xay b l Id 35 + 40 m, dung tich be toi thilu Id 10 + 15 ngdn m^ be qua nhd se ling biin kem, luyng bun trdi qua cira xd idn, hipu qua t>am thap Be cdng Idn kha ndng ling dong bim cang cao Hien tgi, mo than Coc Sau dp dyng cdng nghp xu ly biin bdng mdy bam biin HM-400, hut phan bun loang (bun hoa) vd bam len ho Idng Hinh anh thyc t l cdng nghp xir ly bun tai md *' \id • ^ - I- p.i„ V^ Hinh Scr dd cdng ngh$ xirly bun bdng MXILGN kit hgp vdi rii dit dd 1- « p dd; 2- ô p tKin: 3- Oian âC Hinh Sadd cong nghg bcrm bun len be ting 1- d6 tiao W Idng, 2- tau hut bun 3- ptiao ong bom; 4- dng din bun, 5- cira xa nuCrc: 6- khung go co lOp /pc f^ia ngodi KH< N\IS() I ; o r * t O N f N(;HKKH.AITHACLOTHnN Thong tin khoa hoc cong nghe mo Bar g Bic linh ky thuit cua THB HB-16 Dtmvi Trisi Luu lifong bam Q' - hut sau £ 4m - hilt sau > 4m m'lh m'/h 167,7 157.3 Luang tieu hao niwic: - hut sau £ 4m - hilt s^u > 4m m7h m7h 1054,8 1071,2 Cic thong s6 TT Chi^u sau hut toi da m Chi^u sau hilt toi thieu m M6m n u ^ cua tdu m 0,42 1320 Ndng suSt dung d|ch bam m7h Ap l^rc cOt nutS-c men 28 Chieu cao hiit chan khong - theo tinh toan - theo thu'c te men men 6,78 5,87 Duang kmh ong hiit mm 350 10 DOng ca di^n mdy bam - cdng suat -tocdO kw v/ph i 400 1480 Hinh Cdng nghi xuly bun bing miy bam bun bam lin bi ling tai md than CQC Sau (10/2016) than Coc SSu diroc thi hi§n tren hinh Cdng nghi xir iy bun bing MXTLGN vi chd len bii C6ng nghe ndy dirtfC ip dgng t^i md than Deo Nai, d0c diem c6ng ngh^ nho sauSau bom c?n nirOc ir day m6 thi su' dgng MXTLGN dirng tren xiic vin moong vi hi thu nifOc di treo kh6 kh6i biin Sau khoi biin da dooc thao khO, dirng tren nen cong vi tien hdnh xiic biin theo nln cu Qud trinh xiic phai thoing xuyen diing glu xuc thdm d o i n g , trdnh tinh trgng mdy xiic dirng xuc tai khu vu'c nln dit y|g C6ng tdc xuc dooc tiln hanh theo trinh tv xuc vdn tir xung quanh vdo giOa cho den hit khoi bun ddy md Khi dp dgng cong - J , , ir ' / _ - ^ _ IT m Hinh Sa cdng nghi xir ly bun bing MXTLGN kil hap vdi rii dit di 1- miy xuc: 2- td: 3- idp bun: 4- than ,'•„ o p uyiikj ^'UMIJ ngh$ ndy chilu ddy l i p biin xuc doge tir 2-3 m d l i vOi bun hgt min, tir 3+5 m d l i voi biin hgt kHCNM s o I ;[|17'