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Thong tin khoa hoc cong nghe m o > DE XUAT LI/A CHON THIET Bl XUC BOC THI CONG LO DA PHU HOP Vdl Olfu KIEN MO HAM LO VUNG QUANG NINH For increasing the driving speed, the selection of the technological line suitable to the mine technical conditions IS very important Basing on the evaluation of the current driving technology applied to underground coal mines, together with the experience from the application of the driving technologies applied at the countries having developed mining industry, the paper proposes the driving technology applied to underground coal mines for increasing the driving speed with the existing driving equipment Hien trang thi c o n g 16 d a tpi cac m d h i m 16 v u n g Q u a n g Ninh Cong t i e xuc bIc v i v$n ehuyin d i t da sau n l I i cong vipc rit quan trpng, nang nhpc va m i t nhieu thdi gian thi cong dudng 16 khoi d i ran cung bing phuang phap khoan nd Thyc te cho thiy, dieu kien binh thudng, ehi phi nhan lyc va thdi gian cho xuc bic-van chuyin d i t d i chilm khoang 3040% thdi gian mOt chu ky eong t i e [IJ.Cac md him Id cua Vipt Nam mdi ehi ea gidi hda dugc mpt phan cdng tac xuc bIc Hien van edn rat nhieu guang 16 phai tiln hanh xuc bIc thu cong, d i y chinh la mpt nhijng nguyen nhin kim ham t i c dp d i o 16 da tai nude ta.Vi v^y, hi^n tpi eie nude tren t h i gidi ngudi ta da ca gidi hoa toin bo khau xuc bIc d i t da Hipn tpi, eac md than him 16 d i dua v i o su dyng nhilu loai miy xiic phyc vy cho cong tac xuc boc van chuyen, nhien phin Idn la cac •loai may xuc bIc nang suit thip va lac hau Do do, t i c dp xuc b l e v i n thap, anh hudng nhieu d i n nang suit dao 16 Vipc trao d l i godng c6 tai va khong tai d guang khdng co cac thilt bj chuyen dung ma chu yeu dung ga trinh tam thdi va ghi re vao cup, d i y goong bang thu cong hope bang tai, dau t i u Trong khoang cich giua c i c cup trinh kha Idn, hope eac ga trinh tpm thdi dung de trao d l i godng c6n dpt qua xa (200^300m) d i n tdi thdi gian trao ddi godng rit eao tu 20-^25 phut Vdi ca sd tang trang thilt bi nhu viy t i c dp v i nang suit dio 16 hipn tpi I i thip De nang cao dugc t i c dp d i o 16 c i n thilt phai ding bp, b l sung them nhieu lopi may xuc mdi phu hgp vdi dieu kipn eua md [2] KS H O A N G PHU'ONG T H A O TS TRINH OANG HUNG KS PHi VAN LONG TtiS, LUU C O N G N A M Vi$n Khoa hoc Cong ngh$ Md - Vinacomin Bien tap: TS Pham Minh DIFC Gidi thieu mot sd t h i l t bj xuc b l c thi cong Id da Qua trinh khao s i t danh gia eac y l u t l ca ban anh hudng den eong nghp va thiet bi CGH (ca gidi hoa) dao chlng 16 dieu kipn vung md ham 16 Quang Ninh, tu kinh nghiem i p dung cong nghe CGH dio chlng Id d Trung Quoc va eie nude tien tiln tren t h i gidi, lua chpn SDCN (sa cong nghe) va thilt bi CGH Qua dinh g i i phan tieh, eo the thay ring viec lya chon thilt bj phu hgp vdi dilu kien eua mo, can dua tren nhu-ng thilt bj hien cd v i nhung dieu kien eu t h i cua m l i mo Trong tpn dung nhung thilt bj mo da cd nhu xe khoan Tamroek v i hp thing van tai hipn hinh cua mo Trong 16 da, vdi cdng nghe hien thi cong t i c p h i vd d i t d i thong dung nhit v l n I i su dyng phuang phip khoan n l min, do, muc dp uu tien su dyng xe khoan ty hanh va may cao da c6 chuyen tai duoi v i n I i c i p eao nhit Tong hp'p so sanh wu, nhteoc diem vk sy ho^t ddng cua loai may xuc dang duxyc ap dung bien hien - May xuc lat hong (612C) * fi/ld ta ho^t ddng: May xuc v i o vj tri xuc boc dit d i tai guang 16 va tiln hanh xuc Sau xuc d i y g i u , miy xuc ning g i u len va lui lpi phia sau chit tai len godng, sau tilp tue tiln len d l xuc dit d i rli lui lai chit tai Qui trinh niy lap di Ipp lai eho den xuc hit d i t d i no gay • U'u, nhwpic diem va dae thu cua thiet bj: + Nang suit tuang doi Idn Dilu khiln d l dang, tien lgi, an toan, ding tin cay i J H NM SON 2(1':^ t NKT HA.M LO Thong tin khoa hoc cong nghe md Mdy xOcl$t hong (6120) + Do sy c i n thilt phai tiln lui guang, ddi hoi khong gian Idn han + Mil lin chit hope dd tai dIu phai quay ea than miy, hope phai tiln hope liji Khi phai xoay Ii6n tyc din din nhanh mon xich + Do miy phai tiln liJi rit nhieu l i n d l chat v i dd tai, n&n lam cho d i t da mo nen 16 d l bj liy lOi, may d l bj sa liy, l i m viee khd khan • Tlnh to^n so dp thdi gian lam vide theo ly thuyet di xuc bdc hit X m^ dit da no gay ra dguvng /d:Tinh toan c i c thong s i ta xic ^nh duge thdi gian xue ble dudi day: T = Tl + (pT2 + T3= 30 + 9,98X, (phut) T2 = tl +12 + ts +14: la thdi gian thye t l xue ble dit d i , ti= [.V.tc.ko.kr]/[(pq.q]: I i thdi gian xue ble dat d i ving xa khoi guang,ti=0,272X, phut t2 - thdi gian xuc blc khIi lugng dit d i ca ban tpi guang, t2=0,825X,phut ts - thdi gian ngdng nghi van chuyen, t3=4.58X phut t4 - thdi gian hit dpn d i t d i guang, t4=3X, phut ^ T2=8,68X; phut 'M^ycaov
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