Chao mung 79 nam Ngay Truyen thong cong nhan vung mo VMOT SO GIAI PHAP CONG NGHE NHAM NANG CAO HIEU QUA VA AN TOAN TRONG KHAI THAC VIA DOC TAI MO HAM LO VUNG QUANG NINH So far, for mining inclined coa[.]
Chao mung 79 nam Ngay Truyen thong cong nhan vung mo VMOT SO GIAI PHAP CONG NGHE NHAM NANG CAO HIEU QUA VA AN TOAN TRONG KHAI THAC VIA DOC TAI MO HAM LO VUNG QUANG NINH So far, for mining inclined coal seams, many types of mining ThS TRANTUAN NGAN technologies and supports have been studied and applied to the Vi$n Khoa hoc COng ngh$ Md - Vinacomi actual production However, the geological conditions of the - _ - _ „ * _ , inclined coal mines are very varied; therefore, the efficiency ^'®" '^P' ' * ' ^^° "°"^ fJt^ang of their application is limited Thus, the selection of the technological solutions for increasing the capacity output, safety level and the production efficiency in inclined coal seam mining activity at underground coal mines in Quang Ninh area is essential Trong khai thdc than h i m Id, so vdi cdc via d i e thoai d i n nghieng, via d i e Id d l i tugng khai thde khd khdn, phuc tap han rit nhilu, ding thdi mO'C dp an todn cQng bj han c h l Vdi d l i tugng via nay, cdc mo h i m Id cua ngdnh Than da dua vdo dp dyng nhilu logi hinh edng nghd, thiet bi, k i t cau ching dac thu Qua thuc t l dp dyng, mdt s l logi hinh cong nghp dang dugc tri dp dyng, nhu ca gidi hda ding bp si> dgng t l hgp ddn chong 2ANSH (Id ehg 2ANSH), khai thdc Id dpc via phdn ting, chia Idp ngang nghieng Id chg dgng buIng cpt ho|e ddo Id Ily than Nhung cdng nghp nay, hang ndm ddng gdp san lugng khoang tripu tan, chilm 19% ting san lugng khai thdc ham Id eua TKV [1] Trong do, Idn nhit Id cdng nghp khai thdc Id dpc via phdn tang vd chia idp ngang nghieng, chilm 12,4%, tilp de Id cdng nghp khai thdc dgng buong cpt chilm 3,7%, dao Id lay than chilm 2,1% va 16 chg 2ANSH chilm 0,8% Tuy nhien, dilu kipn khai thde cdc via d i e vung Quang Ninh rat da dgng, moi logi hinh cdng nghp cung chi dp dyng an toan vd hipu qua mdt phgm vi nhat dmh Cho nen, vide lya chpn gidi phap hogc doi mdi vd da dgng hdg cde logi hinh cdng nghp d l khai thac cdc via d i e nham nang cao hidu qua kinh te Id r i t d n thilt Hipn trgng khai thdc via ddc cac mo hdm 16 vung Quang Ninh vd mgt s6 vdn d l cdn t i n tgi - Doi vol cdng ngh^ khai thdc Id chq 2ANSH [2] Cdng nghp ndy hipn dang dp dyng tgi md Mgo Khe, Hing Thdi, khai thdc dilu kipn chilu ddy via tu mong d i n trung binh, gdc d i e via tren 45°, via I n dmh trung binh den on ^nh v l chilu day vd gdc die, vdch, try via thu$e logi on djnh, bin vung tnjng binh trd Idn Kit qua dp dyng tgi md Mgo Khe va Hong Thai dugc the hien bang 1, Ddnh gid qud trinh dp dyng cdng nghd tgi Mgo Khe vd Hing Thai cho thay, uu * l m eg ban Id nang cao mu'c dp an toan, giam t i n thit tdi nguydn, ndng cao ndng suit vd san lugng khai thdc, cai thipn dilu kipn Idm vipc cho cdng nhdn Nhuge dilm Id, ehi phi d i u t u ban d i u Idn, khd khan qua trinh dao va giu' hgu Id th-^ugng Trudng hgp chilu day via bien dpng, Idn han vdi chieu cao ddn chong, dd xdy hien tugng Id rdng ndc hode trugt n i n lam hgn c h l t i c dp khiu guang eung nhu edng tac an todn cho Id ehg G i n day, Cdng ty than Hing Thai phoi hgp vdi Vipn Khoa hpc Cdng nghp Md nghien cu'u va trien khai dp dyng cdng nghd khai thdc su dyng ddn ching mdm logi ZRY, 16 chg thu nghipm thupc vig 9b, khu Trdng Khe II Vdi dan ching m i m logi ZRY, cdng nghp cho phep khai thdc hipu qua doi vdi dilu kipn via than doc nghieng d i n d i e dCrng, chieu ddy via ti> 1,6 d i n 4,5m.'Tu kit qua ban dau c6 t h i ndi, cdng nghp da khac phyc dugc nhilu hgn c h l cua cdng nghp 2ANSH, Id chg chia bac ehdn khay, xidn cheo da dp dung trudc dd - Doi vai cdng ngh$ khai thac Id doc via phin tang va chia lop ngang nghidng [2J Cong nghp ndy hipn dang dp dung tgi nhieu md, nhu Mgo Khe, Vdng Danh, Udng Bi, Hd Lim, Hg Long, Hdn Gai, Duang Huy Cac cdng nghp dp KHCNM S 11/2015 * CNKT HAM L Thong tin khoa hpc cong nghe m o Bing Tdng hgp mdt s6 chi tieu KTKTca bin cua cdng ngh$ thic ca gidi hda sir dung td hap din ching 2ANSH Don vj Ten chi tieu TT S6 twang Mao Khe Hong Thii 2,2 Chilu ddy trung binh via than m 2,2 Gdc d i e trung binh cua via dp 58 50 Trong li^cng the tich cua than T/m' 1,52 1,56 Chieu ddi theo hudng ddc mpt cdt m 130 205 Chieu cao khau Id chQ* m 2,2 2,2 Chieu rdng ludng khdu m 0,63 0,63 San lu'O'ng Id cho' mpt ngdy dem T 200*400 200+400 Cdng s u i t Id c h e T/ndm 59.000 65.000 Ndng suat lao ddng T/c6ng 5,0 4,3 10 Chl phi g5 cho 1000 tan than m' 37,3 33,2 11 Chl phi m6t 16 chudn bi cho 1000 t i n m 9,0 6,7 12 Chi phf ddu nho hc5 cho 1000 tdn than kg cdi 53.1 25,8 3 % 14,4 8,9 13 Chl phi rdng khdu cho 1000 tdn than 14 T i n thdt than theo cdng nghe Bdng Tdng hgp mgt s6 chi tidu KTKT cOa cdng ngh$ khai thdc id dgc vfa phdn tdng, Id cha khai thdc chia i6>p ngang nghidng Solirang TT Ten chl tieu Ban vl Ld DVPT Ldcha chia Idp ngang nghiing Vdt lidu ch6ng giu' Gii TLDD Gid TLDB, gid khung TLI3B Chi^u ddy via trung binh m 2,5+6,0 6,0+10,0 Gdc doc via trung binh dd 46+70 45+70 Chi^u ddi theo phu'ong cpt khai thac m 70+80 70+100 Chidu cao phSn tang khai thdc m 3+12 8+12 30+45 40+100 CCng suat khai thdc (hai phdn tdng d6ng thdi) 10'T/nam Nang sudt lao dpng T/c6ng 2,5-3,6 2,5+5,0 Chi phi thu6c no cho 1000 tdn than Chl phf kfp n6 cho 1000 tan than kg cdi 80-120 80+160 180+350 200+ 350 10 Mit Id chudn bi cho 1000 tan than m 30+45 25+35 11 Tdn thdt than % 30+40 30+35 dgng khai thdc d\ku ki0n chi^u ddy via ti> trung binh den day, goc d6c vfa ti> 45° tro' len, khong phg thuoc nhieu vdo mu'c dp Sn djnh, ben vOng cua vach, trg via Ket qua dp dgng cac c6ng nghd du'p'c t h i hipn bang Qua thg'C t l dp dgng cho thiy, u'u dilm cua cdc cong nghp la co the khai thdc cac v?a die, chilu day trung binh d i n ddy, dieu kipn khai thdc phi>c tap So voi cong ngh$ khai thdc dang buong c$t, cdc cdng nghd ndy giam du'pc khii lu'O'ng ddo cdc du'ong Id thucng die, an todn vd KHCNM S6 i l / l * C > K T H A M L cai thipn dieu kipn Idm vipc cua cdng nhdn Nhu'p'o d i l m cua cong nghp Id cong suit 16 ch? vd nang suat lao dOng chu'a cao, khoi lu'ong 16 chuin bj Ion vd t i n t h i t than - €6i voi cong ngh$ khai thic bu6ng C0t (buong - Id thuvng chio) [2] CSng nghd hidn dang dp dgng tai cac mo Vdng Danh, Nam Miu, Uong Bi, Hing Thai Scr d n g nghd duec xdy dg'ng tren co sa k i t hp'p cdng nghd khai thdc 16 dpc vfa phan t i n g xien chao vd cdng nghd buIng thu'p'ng chdo Chao mCrng 79 nam Ngay Truyen thong c6ng nhan viing mo Bing TT 10 11 - Id thuang chio Tdng hap mdt sd chl tiiu kinh ti kf thuit cua cdng nghi khai thic budng Ban W Soltfong Ten chi tieu m 2,5+6,0 Chieu ddy via tmng binh 45+70 dd Gdc die via tnmg binh m 80+100 Chidu dai theo phuxyng c$t khai thac m 8+12 Chidu cao phan tdng khai thac 10^/nam 30+60 Cdng suat khai thdc (2 phan tang ddng thdri) T/cdng 2,6+4,5 Ndng sudt lao dOng m' 15+25 Chi phf g6 cho 1000 tdn than 150+200 Chi phi thudc nd cho 1000 tan than kh kg cdi 300+450 Chl phf kfp nd cho 1000 tan than m 20+30 Met Id chuan bj cho 1000 tin than 30+40 Tdn thdt than Oilu kidn dp dgng hidu qua cua cong nghd tu'ang ILP nhu- so d l cong nghp khai thdc 16 dpc via phan ting Kit qua dp dgng cong nghd thg'C t l du'p'c the hipn bang U'u dilm cua cong nghd, dp dung du'p'c d l khai thdc cac vFa co chilu ddy trung binh d i n ddy d i e va co dilu kipn khai thao phCrc tap, so d l cong nghp va cong tdc khai thac don gian, v i n d i u tu' ban d i u khong \an Nhu'pc dilm cua cong nghp la cong suit 16 chg vd ndng suit lao ddng thip, khii lu'ong dao cdc du'O'ng 16 thu'p'ng d i e nhilu, tir Idm tang cdc chi phi (dac bipt chi phi 16 chgin bj), ton thit than Ion - Boi v6l cong nghe khai thic dao Id lay than [2] Hipn dp dgng d h i u h i t cdc mo ham 16 de tdn thu than a nhu'ng khu vgc nho Id cd dieu kipn dja chit phiic tap, nhOng khu vg'c khdng thudn \a\ cho vide d i g tu' dp dgng cdo loai hinh cdng nghp khdc Hdng nam, san lu'O'ng tan thu tir cdng tdc ddo Id i l y than cua TKV khoang 0,5 tridu t i n Mpt sd giai phap nhdm nang cao hieu qud khai thdc via ddc cac mo hdm Id vung Quang Ninh Theo ddnh gid t i n g hp'p trij lu'ong pham vi da du'pc quy hoach cua mot s l md him 16 viing Quang Ninh, trtf lu'O'ng dja chat cua cac khu vgc via cd goc d i e Idn hon 45° khoang 125 tridu tan, chilm 25,6% t i n g trS lu'png khodng sdng, dd: trii' lu'O'ng via cd chilu day mdng d i n trung binh (£3,5m) khoang 52,3 tripu t i n , chiim 41,54%; trCf lu'O'ng via cd chieu day 3,5-»6,0m khoang 33,4 tridu t i n , chilm 26,52%; trir lu'png via cd chilu ddy 6,01+10,0m khoang % 22,2 trtan, chilm 17,65%; tru' lu'png via cd chilu day Idn hon 10,0m khoang 18,0 tr.tin, chilm 14,30% Vdi k i t qua ap dgng vd mpt so u-u nhu-pc diem cua mdt s l iopi hinh cdng nghp ndu trdn, d l ndng cao cdng suit, nang suit, an todn vd hipu qua khai thdc cac via die c i n tiep tgc nghidn ciru hodn thidn cdc giai phdp cdng nghp khai thac hipn dang dp dgng, eg the: - Doi v&i cong ngh^ khai thac Id doc via phan tang, id cha chia lap ngang nghieng: Tiep tge nghien ciig dp dung eao giai phap ndng eao chilu cao phdn ting khai thac; su' dgng eae Iopi vl ching mdi linh hoat; giai phap khoan n l min, thu h l l than trin; giai phap van tai than Id chp; giai phdp ehing giir 16 doc via phdn ting vd eac giai phdp to chirc san xuat hpp ly , phii hp'p vol tirng dilu kipn 3\a chat via than; giai phdp dp dgng cdng nghp khai thac phd n l phdn ting kieu PlilO (hinhl) - Boi vdi cdng ngh$ khai thac sCr dvng dan chong lo^i 2ANSH: Nghidn ciru lap hu'dng d i n dp dgng cdng nghd, qgy hoach va md rdng pham vi dp dgng dieg kipn via ed chilu ddy mdng va tmng binh, gdc doc Idn hon 35° vung Quang Ninh Vdi cdng nghp khai thac sir dgng ddn mem loai ZRY, c i n danh gid kit qua, diic nit kinh nghipm, nghien cirg hodn thien va hu'dng dan dp dgng dilu kipn md Hdng Thai, tilp theo nghidn ciru md rdng dp dgng dilu kipn dja chit md tu'ong ty cho mpt s l md h i m Id viing Quang Ninh - Boi v&i cdng ngh$ khai thac d^ng buong cpf Cdng nghp hipn dang dp dgng tpi cdc md cung KHCNM S6 11/2015 * CNKT HAM L Thdng tin khoa hpc cong nghe m o 4L I 1i ilffl T.» 1.J1 t m f*T f*'f ^ —"" ' a^.a„i ' ««-.- ' """""*" ' " * " ' " " ' " " " ' * • > Bfc.W„,™^bki — ^ « „ p ^ m ' ã"ã ã^ 1.ằ 4r.aôin,blnh,-iô- '*"'*"^"'""' H/n/i t Sad6 cdng nghi khai thic phi nd phin ting kiSu WO Hinh Sa dd cdng nghi khai thic cdt dii theo phuong khiu guang Id cha bing miy bio than hoic miy khiu, ching giu li cha bing din ching Iwhinh TM KHCNM S6 11/2015 "CNKT HAM LO Hinh Sa cdng nghi khai thic cit dii theo phuang, khiu guang Id cha dang xiin chio bing miy bio than, ching giir bing din ching tw hinh Chao mung 79 nam Ngay Truyin thong cong nhan vCing mo Hinh So d6 cdng nghd khai thdc cdt ddi theo phuong, khdu guang Id chg d^ng b$c chdn khay xidn ch6 rat da dgng Thd'i gian tdi, Tgp dodn TKV tgo cdc d6i tuang vfa d6c rit phuc tgp Mac du cdn dieu ki0n de tien hdnh tong hpp, danh gia ket mpt s6 hgn che, ve ndng suat, cdng suit, muc qud dp dgng, tren ca sa dd, Igp huang dan dp dp an todn, cung nhu mine dd dp dung ca gidi dyng cdng ngh§ de cdc mo tgn thu than bing hoa khai thdc cho ede via edn han che, logi hinh cdng nghp ndy dam bao an todn vd cd nhidn, cdc sa d6 cdng nghe da va dang dp dgng, da ttPng buac khac phyc duae dieu kipn khai hipu qua CDng vd'i vi$c hodn thipn cdc cdng nghp khai thdc phCpc tgp ndi tren D I ndng cao hipu qua, an todn khai thac thac hipn dang dp dyng, eIn thiet trien khai nghien cuu dp dyng mdt s6 sa cdng nghp vfa doc, mot mat, c i n hodn thidn cae edng nghp khai thac ca giai hda dong bO, khau than bang khai thde hien dang dp dung, d6ng thd'i can mdy khiu hogc may bdo than, ch6ng giu Id chp nghien ct>u, dp dyng eac sa d6 edng nghe mo'i, bdng ddn ch6ng tu hanh (hinh 2, 3) hogc thuc theo hudng nang eao muc dp ca gio'i hda khai hipn ca gidi hda tung phan vd'i khiu than bing thdc./ mdy khiu ch6ng giu Id chg bdng vi chong to hpp Tai lifu tham khao: hodc VI ch6ng dan, hogc thuc hipn hoan todn Bdo eao thuc hipn khoi lup'ng mo cac ndm bang thu cdng khoan no k^t hp'p vai chong ti> 2010-^2014 cua Tgp doan CN Than - Khodng giu guang khai thac bang vi eh6ng thuy luc san Vipt Nam (hinh 4) To hpp thiet bj khai thdc chong giu Id Bao cao de tdi (2015) "Nghidn cuv va di chp' ed bo sung hp thong ch6ng trdi truot theo xuat cac giai phap nhim tang nang suit lao hud'ng d6c ddng, giam gia than T$p doan TKV", Trong sa cdng nghp ndy, guang khiu Phan chuyen de: Hipn trgng khai thdc cdc md dupe bo tri ch6o so vai hudng d6c via mOt gdc ham Id, Vipn Khoa hpc Cdng nghp Md I P 5°*15° va vi^c khiu than dup'c tien hanh tu Nghien CLPU de xuat ap dung so cdng dux^i len tren So vd'i guang khiu thing, sa ngh$ khai thac c^c via than diy trung binh doc cdng nghp ndy cd tdc dgng tdng luc cat cua thiet nghieng den doc dung vung Quang Ninh, Thong bj khiu than vdo guang 16 chp' tin Khoa hpc Cdng nghe Mo, s6 1/2014, Vipn Kdt luan Khoa hpc Cdng nghp Md, Hd Npi Qua t h u c t i dp dyng, cho t h i y vipc khai thdc KHCNM S 11/2015 * CNKT HAM L6 ... khdc Hdng nam, san lu''O''ng tan thu tir cdng tdc ddo Id i l y than cua TKV khoang 0,5 tridu t i n Mpt sd giai phap nhdm nang cao hieu qud khai thdc via ddc cac mo hdm Id vung Quang Ninh Theo ddnh... ch6ng dan, hogc thuc hipn hoan todn Bdo eao thuc hipn khoi lup''ng mo cac ndm bang thu cdng khoan no k^t hp''p vai chong ti> 2010-^2014 cua Tgp doan CN Than - Khodng giu guang khai thac bang vi... nd cho 1000 tan than m 20+30 Met Id chuan bj cho 1000 tin than 30+40 Tdn thdt than Oilu kidn dp dgng hidu qua cua cong nghd tu''ang ILP nhu- so d l cong nghp khai thdc 16 dpc via phan ting Kit