Thong tin khoa hoc cong nghe mo i^NGHIEN Clhl GIAI PHAP KY THUAT CONG NGHE NHAM NANG CAO HIEU QUA SANG TACH CAM MfN tai Nha may tuyen than Nam Cau Trang At present the properties as well as the output[.]
Thong tin khoa hoc cong nghe m o i^NGHIEN Clhl GIAI PHAP KY THUAT CONG NGHE NHAM NANG CAO HIEU QUA SANG TACH CAM MfN tai Nha may tuyen than Nam Cau Trang At present the properties as well as the output of raw coal supplied to Nam Cau Trang coal preparation plant, have much varied compared with its initial design, therefore the existing screens system for removing the fine coal works with very low efTiciency For increasing the efficiency in business and production operations and environmental protection, the research on the technological solution for increasing the efficiency in fine coal removal screening system at Nam Cau Trang coat preparation plant is considered as a very important task ThS MAI VAN THINH ThS N G U Y E N HO-U N H A N Vidn Khoa hoc Cdng ngh0 M6 - Vinacomin KS.VOTUANLINH Cdng ty Tuyin than Hdn Gai - Vinacomin Bien tap: ThS Hoang Minh HOng Md' d i u tro than nguyen khai hien eao hon 11% so Nhd may tuyen than Nam C l u Trang thupc thiit k i , than nguydn khai ehua nhieu bun set Cong ty tuyin than H6n Gai duge hang BMCH hon; hon n&a chieu ddi cdc ludi sdng tdch cam cua Uc thiit kd vdi cdng suit 2,0 trigu tin/nam khd hien tgi rit ngin, vi vay than d p ligu vdo tuong duong 450 tan/gid, dugc dua vdo su sang ehua kip phan ting da trugt hit khdi bd dung tu nam 1996 Theo thiit k i ban diu, cong mat ludi sdng, xuing bang tdi d p vao mdy nghd sang tuyen gom cdc cdng doan chinh: lang , eac y i u t i trdn day la mpt nhung sang kho than nguydn khai tdch d p hgt idn nguydn nhan chinh dan den hg thong sang tach +50mm va taeh mpt phdn cam (0-6)mm, tuyin cam khd hidn Idm viec kem higu qua, khong d p hgt (0-50)mm bang may lang, tuyin nang dap ung dugc ydu c l u san xuit Hieu suit lam eao chit lugng than sach may ilng bang xody vigc cua h$ thong sdng tach cam khd hign l i e huyen phCi va mang xoan Xu ly bun nude rit thip, chi dgt dudi 75%, dac bidt, than d p (0-1 )mm bang xody l i e phdn d p , sdng khu ligu ed dp I m cao hidu suit sang cang giam thip, phai tang co ludi sang Idn din (20); 22mm nude, may ly tam, b i cd dac cao trdn de tach cam, gay m i t mdt than cue va than D^ ddp Leng ydu cau thuc te san xuit, tu cdm tuyin chat lugng cao vdo than cdm khd di vao hogt dpng cho d i n nay, nhd mdy da dugc Hidu suit sang thip eung lam tang ty Id than d p d i u tu cai tgo bo sung thiit bj nhiiu lln d i hodn hgt mjn co than dua vdo tuyen, ddn din thien cdng nghd, ndng cao nang suit higu qua tang ty Id bilin sinh qud trinh tuyen rua, sdng tuyen, xu ly bun nude, nhu lap ddt thdm lam tang chi phi xu ly bun nude, lam gidm higu he thing xoay lie phdn d p , sang khu nude, qua tuyen eCia mdy lang ding thdi lam cho khdu may ly tdm, he thong tuyin noi cpt, b i co dgc, bun nude bi qua tai gay anh hudng x l u din san mdy Ipc dp xuit vd mdi trudng Nam 2007, Nha may cung da lip dat b i sung Dk nang eao higu qua san xuit kinh doanh thdm sang tach cam d p hat mjn (sang ludi) d i ndng cao ndng luc sdng tach cdm khd Do va bdo vg moi trudng Nha mdy, vide nghien euu giai phdp k? thuat cdng nghe nang eao hieu qua san lugng than nguydn khai d p vdo Nha may mpt tang cao (hign da ion g i p 1,5 din he thong sang tdch edm mjn tgi Nha mdy tuyen 1,6 l l n so vdi thiet ki) vd tinh chat than nguyen than Nam Clu Trang la rit eIn thiet, d p bach khai thuc t i ed nhiiu thay d i i so thiit k i nhu: ty Hien trang san lugng, tinh c h i t than Ig than d p hgt mjn -0,10mm than nguyen nguyen khai d p lieu va day chuydn t h i i t bj khai hien Idn hon l l n so vdi thiit ke, dp cong nghg sang tach cam cua Nha may KHCNM SO 12/2015* CN TUYEN, CHE BIEN THAN - KH04NG SAN Thong tin khoa hoc cong nghe m o 2.1 Hien tr^ng tinh chit than Bing Tdng hap kit qui so sinh phin di hat trung binh than nguydn khai cip vio nhi miy tuyin than Nam Ciu Tring theo nguyen khai cap vao sang tuyen thuc tivi theo thiit ki Nhan xet: - Ty le elp hat mm (0-0,1)mm Than nguydn khai cap Than nguyen khai cip Tyle Tyle than nguydn khai hign vio nhi miy theo thuc vao nha miy theo thiit TH TH tang cao gap l l n so thiet k i ban thuc ke ti nam 2014 thuc d i u , ty Ig d p hat (O-I)mm tang ti/ TT ti/ gap 1,5 l l n so thiit k i ban dau, ty thiit thiit Id d p hat (0-6) mm tang hon 10% ke Cip hat THY Optra Cip hat THY Bitro (mm) (%) Ak(%) (mm) (%) Ak(%) (lin) ki(%) so thiit ke ban diu - Hg thong sang tach khd cin dugc cdi tao nang eao nang luc tuong ung vdi su gia tang ty Ig 21,76 6-13 elp hat mjn than nguydn 6-15 13,57 43,94 khai d p vao sdng 1-6 30,78 3-6 11,96 35,69 2.2 /-//gn trang san lirong than 15,88 30,22 1-3 nguy§n khai cap vao sang tuyen 6,14 0,5-1 0,5-1 8,38 29,25 Nhan xet: 0,063-0,5 12.01 0,1-0,5 13,61 - San lugng than nguyen khai 0-0,1 18,33 0-0,063 8,90 cap vdo Nha mdy cac nam Cong 100,00 38,29 Cdng 100,0 26,84 gan ddy tang eao g i p 1,5 -1,6 lan 9,43 so thiit k i ban diu 10 0-0,1 18,33 0-0.063 8,90 2,06 - Hidn nay, dieu kien dja 31,94 0-0,5 20,91 1,53 11,03 11 0-0,5 chit va dieu kien khai thac thay 12 0-1 40,32 29,25 0-1 27,05 1,49 13,27 doi ndn chit lugng than nguyen 13 0-6 68,16 30,59 0-6 57,83 1,18 10,33 khai d p vdo Nhd may cang 14 0-15 81,73 32,81 2,14 x l u di, tro trung binh than 0-13 79,59 1,03 nguydn khai hien khoang Bang Tdng hgp sin li/ang, chit lirgng than nguydn khai cip vao 38%, cao hon 11 % (cao gip 1,4 Nhi miy sing tuyin than Nam Ciu Tring giai doan 2009 ^ 2014 lan) so vdi thiet ke ban dau Thucti Thiit ki So sinh - C i n phai dau tu eai tao nang eao nang luc hd thing sdng tach San Optra cdm khd tuong ung vdi sg gia T BO tro luang Bdtro Nam Sin luang Sanluang Thucti T tdng san lugng than vao sang va TNKAk TNK Thuc (tin/nam) (%) (tin/nam) Ak(%) ti/Thiil /Thiit sg thay d i i dac tinh than d p ligu ki ki vdo sang 2.3 Hien trang thiet bi cong 2009 3.205.601 37,81 1,60 1,41 nghe va hi$u qua lam viic cua h$ 2010 106.138 37,39 1,55 1,39 thong sang khOcam cua Nha may 176 177 38,58 2011 1,59 1,44 So cdng nghd he thong 2012 020 587 38,4 1,43 sang khCp cam hign eua 2.000.000 26,84 1,51 Nhd may tuydn than Nam Clu 3.259 016 38,27 2013 1,63 1,43 Tring dugc trinh bay d hinh 2014 2.864,739 37,64 Md ta luu trinh cong nghd he 1,43 1,40 thing sdng khu cam mjn hidn eo Tmng 3.105 376 38,02 1,56 1,42 nhu sau: Than nguyen khai d p binh +35 15-35 6,52 66,71 11.75 60,67 +25 8,77 13-25 11.64 - - m KHCNM SO 12/2015* CN TUVEN, CHfe BitN THAN - KHOANG SAN Thong tin khoa hoc cong nghe m o w Than ngnven lihai 0-50 mm tit RC2 Hop cbia lieu o a "1 Bimke30m^ Bimkeforo^ Cap lien glfa Cap lieu 824i ,.{ BimkelSm^ }, Bmikel5m^ Cap lieu 816b Cap lieu 824b -^r 81: &-H" Sang 812b ^f~ p I " Sang 820b Bun ke cam kho 300 tan Hinh Sa dd cdng nghd he thing sdng khi> cdm hidn cd hgt (0-50)mm tu cym sang so bp dugc bang tai RC2 chuyen d i n cym sang tdch cdm khd, d p vao hdp chia lieu, di vdo bun ke dung tich 30m^/ chiic (he A) va bun ke dung tich 15 m^/ chiic (hg B) TO cdc bun ke, than nguydn khai dugc cdc mdy d p ligu 816a, 824a, 816b, 824b cap vdo eac sang 812a, 820a, 812b, 820b d i tach cam khd -6(8)mm San phim than cam 6(8)mm dudi sang dugc bang tdi RC3 van chuyen den bang RC10 d i vdo bun ke than cdm khd 300 t i n San phim than 6(8)-50mm trdn sang dugc bang tai RC4 chuyin den bang RC5 vao bun ke 150 t i n sau dd dugc bdng RC6 d p vdo mdy ilng d i tuyin ndng cao chit lugng + Hien higu suit lam vigc eua hg thong sdng tdch edm khd rat thap, ehi dgt dudi 75%, kh6ng tdch triet d l dugc d p hgt than nguydn khai vdo tuyin lam tdng cao ty Ig bun sinh qua trinh tuyin gay qud tai khau bun nude, lam giam higu qua Idm vide cua mdy lang Mae du Nha may da bo tri cong nhdn van hanh thudng xuydn vg sinh Idm sgch mat ludi nhung h# thing sang v l n hoat dpng kdm higu qua Mpt cac nguydn nhan ddn din higu suit sang tdch cam hidn c6 rit thip Id chiiu ddi ludi cua sang tdch cam rit ngin, didn tich ludi sang cung rit nhd (kich thudc mdi ludi DxR =1,35 X 0,99 m, nghidng dp) vi vgy, vdt ligu d p vdo mat ludi sdng chua kjp phan ting da trugt hit ngoai mgt ludi, chi lugng nhd vgt lieu Idp dudi, sdt m|it ludi dugc tdch phin cam cdn lugng Idn vgt lieu d Idp tren khdng dugc tdch cdm md chay vdo bang RC4 elp vao may tuyen lang + Khi dp I m than nguyen khai d p ligu cao (dp I m > 9%), nhlt la vao mua mua, hidu suit hg thong sdng tdch cdm mjn cdng giam mgnh hign nay, dp tro cua than nguyen khai cao hon so vdi thiit k i va chua nhieu thdnh phan bun set hon nen muc dp bam dinh tang cao dd am tang De khde phyc tinh trgng nay, Nhd mdy da dp dung eae giai phdp: - Giam nang suit d p ligu vao sang tuyin de tranh qud tai khau bCin nude Giai phdp ndy khdng d i p ung dugc san lugng than d n sang tuyen vd Idm tang cao chi phi va gid san xuit than - Nha may da thay ludi sang tdch cam vdi kich thudc lo ludi tang Idn den 20; 22mm de tdch cdm Giai phdp tinh the lam m i t mat than cue va than cam tuyen chit lugng cao vao than cdm khd ldm giam higu qua san xuit kinh doanh nhd mdy tuyin Can cu vdo: (1) hidu qua Idm vide eua he KHCNM SO 12/2015* CN TUYEN, CHE BIEN THAN - KHOANG SAN Thong tin khoa hoc cona nghd md thing sang taeh cam hign cd, (2) yeu eiu gia tang san lugng than nguyen khai vao sang tuyln, (3) d$c diim tinh chit than nguyen khai elp lieu vdo Nhd may eho thiy, vigc nghidn cO-u giai phdp k? thugt cong nghg ndng cao higu qua khau taeh cdm mjn tgi Nhd mdy tuyin than Nam C l u Trang Id rit c i n thiit va elp bach Dd x u i t giai phdp k9 thugt cdng nghe ndng cao hieu qua khau tach cdm mjn Nha may tuyin than Nam Clu Trdng 3.1 Ca sa li^a chon giai phap ky thu^t cong ngh$: Nghidn euu lua ehpn phuong dn ky thugt edng nghg nang cao higu qua khdu tach cdm mjn tai Nhd mdy tuyin than Nam Clu Tring dua sang thdng thudng khdc - Thiet bj sdng qua chuii dung cho tdch cdm cd nhieu uu diim hon han so vdi ede logi sdng thong thudng khdc: nang suit Idn, higu suit cao, ed the sdng higu qua ea cdc vgt ligu |