Thong tin khoa hoc cong nghe mo (Ddnh gid qud trinh (dm viec cua dong So thiei 6i c a Gim HOA KHAI THAC THU NGHIEM LO CH0 HA TRAN THAN NOC Within the pilot application of synchronous mechanization technology with longwall top-coal caving method and the utilization of self-moving shield VINAALTA at Vangdanh Coal Company, mining equipment combination including mining machine MG 200-W1, haulage machine SGB-630/2x110, selfmoving shield VINAALTA-2.42/3.15, emulsion pump HA 80/320 P2 have been developed and utilized This paper provides some evaluation on the working process of these mining equipment ThS LE THANH PHUONG ThS N G U Y I N OiNH THONG Vien Khoa hoc Cdng nghe Mo - TKV Theo thong bao ket luan so' 132/TB-VP, 24/11/2006 cija Tap doan Cong nghiep Than-Khoang san Viet Nam (TKV), viec khai thac than bang cPng nghe cd gidi hoa dong bp v6i may kha'u va dan cho'ng tu hanh kieu ALTA dupc thuc hien bang giai doan: Giai doan dau Vien KHCN Mo thiJc hien c6 tfnh chat nghien cij'u thCf nghiem via khu gieng Vang Danh d IP chp c6 chieu dai theo phUdng 50m, chieu dai theo dp doc 45m.vdi he thP'ng thiet bi khau than MG200-W1 chuyen nhupng tCf Cong ty than Khe Cham giai doan se thiJc hien khai thac cd gidi hoa dong bp bang dan cho'ng VINAALTA vdi may khau than cua Cong Hoa Sec cho 16 chp dai 120m Nhu vay cac thiet bi chi'nh 16 chp thtlf nghiem (giai doan dau) bao gom may khau than MG 200 - W ; mang cao dong bp SGB 630/2x110; dan cho'ng tU hanh VINAALTA- 2.42/3.15; tram bom dung dich nhu hoa HA 80/320 P2; tram bom phun SUdng XPB - 250/55 va bp Ipc XPA; cung vdi cac thiet bi he thP'ng cung cap dien bao gom may cat kV; tram bien ap di dpng phPng no KBSG 400-6/0,69 (cung cap dien cap dien ap 660 V cho may kha'u, mang cao gUdng va tram bdm phun sUdng); tram bien ap di dpng phPng no' IT3SB-400-6/0,5 (cung cap dien cap dien ap 500V cho tram bdm dung dich nhu hoa) Tram bom dung dich HA 80/320 P2 Bdm dung dich nhu hoa chdng tu hanh VINAALTA Trong Id chp CO gidi hoa, dan tu hanh dupc si!f dung dong bp cung vdi mang cao va may khau, c6 tac dung cho'ng 66 va dieu khien pha hoa, che chan khong gian lam viec dam bao each ly vdi da't da pha hoa Dan tu hanh VIN/\ALTA vdi phan ket cau cd dupc che tao tai Cong ty Che tao may-TKV, cac linh kien thuy luc nhap cua Cpng Hoa Sec Dan cho'ng dUpc thiet ke che tao cd ket cau tran than ndc dang CLfa so cao (trong 16 chp sCf dung mpt mang cao phuc vu khau gUdng va thu hoi than tran) Cac bp phan chinh cua dan chdng nhusau (hinh 1): ^ Dan KHCNM • SO 9'2008* CNKTHL Hinh 1: Ket cau dan chdng tuhanh 1) Dedan; 2) Xa chinh; 3) Xa trUdt; 4) Xa pha hoa; 5) Tam chSn gUdng; 6) CCfa thu hoi than; ^ ^ VINAALTA 7), 8) Mang thu hoi than chinh, phu; 9) Thanh keo dan; 10) Cpt chfnh; 11) Tam day canh; 12) Bang Jieu khien dan Thong tin khoa hpc cong nghe m o bao gom may bOm, dpng cd dien, mijp noi, binh tfch nang, ket hpp voi thung dung dich nhu hda Mpt tram bdm hai may bom HA 80/320 P2 (mpt lam viec va mpt dU phdng) va mot thung dung dich Thung dung dich nhu hda c6 the cung cap dung dich nhu hda cho may bdm, c6 thiet bi dieu khien cung cap dung dich nhu hoa cao ap cho vi cho'ng thijy li/c lam viec, dong thdi Ipc va dy trCf dung dich quy hoi ve cua he thdng thijy lUc May khau MG200-W1 MG200-W1 la may kha'u hai tang (hinh 2) dupc ket hpp vdi mang cao SGB-630/2x110, tht/c hien kha'u than cd gidi hda dong bp hoac cd gi6i hoa tCfng phan IP chp, phuong thLfc di chuyen khong xi'ch kieu chdt, tay kha'u cong Cac bp phan chinh cua may kha'u, bao gom dpng cd dien (5), bp phan tao va truyen dpng ap luc dau (4) (gpi tat la bOm dau), bp phan truyen dpng tang kha'u ben trai (3) va ben phai (8), bp phan di chuyen ben trai (2) va ben phai (10), tang xoan (gpi tat la tang kha'u) ben trai (1) va (11), khung 66 may bi phun sUOng lam thiet bi cupn cap dien ben phai (6), thiet mat (9), (7) Bam phun suang 250/55 vabq loc XPA XPB- Bom phun sUdng ky hieu XPB-250/5,5, ket hpp v6i bp Ipc XPA lam tram bom, la thiet bj dong bp bom nU6c lam mat va cho'ng bui cho may kha'u than Tram bdm c6 hai may bdm, mpt lam viec, mpt dy phong; Bp Ipc XPA c6 tac dung chu yeu la Ipc nudc vao ap suat thap, cap va giu nu6c ap suat trung Mang cao SGB-630/2x110 Mang cao SGB-630/2x110 ket hpp v6i may kha'u MG200W1 de khai thac 16 chp cO gidi hda Cung voi nhiem vu van tai than gUdng va than tran, mang cao c6n la be 66 va dudng dan cho may kha'u di chuyen qua trinh kha'u than Cac bp phan chinh cua mang cao SGB-630/2x110 (hinh 3), bao gom: dau - duoi may; cau mang qua dp dau duoi; cau mang dac biet dau - duoi; cau mang giilfa; cau mang CO ciJ'a so; xi'ch mang cao + gat; chan than + tam kep; bp day dau - duoi may; dan hudng, v.v Trong dong bp thiet bi IP chp thu" nghiem, ngoai try dan chong VINAALTA cung v6i tram bom nhu hoa la thiet bi m6i, lai cac thiet bi khac deu da qua sCf dung (cua Cong ty than Khe Cham) Qua qua trinh ap dung thCf nghiem cho thay he thong thiet bi may khau MG200-W1 lam viec kem on dinh Theo thong ke, thdi gian ngyng va gian doan san xuat chiem gan 74% tong thdi gian san xuat thu" nghiem Trong nguyen nhan chi'nh la may kha'u, chiem 51,45%; tiep la gay kh6p noi va hong mang cao chiem 23,66%; dan chdng 13,8%; mat dien 2,69%; thieu nudc 1,59%; va cac nguyen nhan khac chiem 6,71% Dac biet, may bdm phun sUdng chi lam viec dupc 1/3 thdi gian thLf nghiem, la mpt nguyen nhan chi'nh gay cac sy CO khac cho may khau Hinh 2: Ket cau may khau MG200-W1 KHCN.M * s o 9/2008* CNKTHL Thong tin khoa hpc cong nghe mo 1300 1650 3420 Lmax = 150 m Hmh 3: Ket cau mang cao SGB-630/2x110 ,• 5) gat; 6) xich; 1) cau mang giCta; 2) mieng hdt: 3) chSn: 4) rang 7) ong cap dich:8) cap dien cua mang cao: 9) dudng ong cap nudc:10) cap dien cua may khau; hop giam toe; 15) dong ca dien 11) kep cap dien, ong nUdc; 12) khung dau may; 13) banh rang sao; 14) Ket qua phan tfch nhCmg nguyen nhan gay ach tac san xuat tren day dUpc the hien qua bieu hinh Tinh trang lam viec cua cac thiet bj chinh nhu sau: Dan chdng VINAALTA, qua trinh sCf dung d 16 chp thLf nghiem, ve cd ban cac ket cau cd khf lam viec tUdng doi on dinh, nhat gap sy co bi nut moi han giUa xa chinh vdi xa pha hoa cua dan so va dan so 21 Nguyen nhan dUpc xac djnh la chat lupng moi han khong dat yeu cau Bien phap xCr ly dupc ap dung la thyc hien bong moi han cu va tien hanh han lai, dong thdi gia cd them cac gan dd cho cac dan bj hong Khac phuc sy co da phai mat 14 ty 20/3 den 2/4/2008 bam, ma hieu HAdk8.8/2/5VAC/3LUF/9/LS la thiet bj hien dai, ket cau vi mach, dupc che tao de dieu khien thiet bj dong thdi Trong qua trinh SLf dung ve cd ban to hpp lam viec tP't, nhien cung c6 mpt so lan gap sy co, bi mat dPng tri nhijrig dau sCr dung 16 chp thLf nghiem' (30/11/2007) Nguyen nhan dupc xac djnh Tram bam dung dich nhu hoa HA 80/320 P2 lam viec on djnh, dam bao luu lUpng, ap suat theo yeu cau To hop dieu khien, khoi dong tram KHCNM * SO 9/2008* CNKTHL Nuik UiOn Dim fhrtnj: yn Khii (•).72' dien ap nguon mo Vang Danh khong on djnh, sai lech dien ap tdi ±10%, yeu cau cua thiet bi chi cho phep +3% May bien ap IT3SB-4006/0,5 hoat dpng on dinh; May cat kV cung tuong ty trudng hop cija to' hpp dieu khien, chat lupng nguon dien nen ty dau khong hoat dpng, phai sij' dung may cat hien c6 cua Cong ty than Vang Danh Mjy khau SL.W/, i.cn fes^ 1-1.81';^ Mang ^iio 2.1.6K'? Hinh 4: Phan tich nguyen nhan gay ach tac san xuat old cho thunghiem Thong tin khoa hpc cong nghe m o May khau MG200-W1 giai doan dau sij' dung 16 chp thLf nghiem doi luc khong di chuyen dUpc SU co nang la 26/12/2007 hong banh rang hop so va den 30/3/2008 may kha'u hoan toan khong di chuyen dupc Bp phan truyen dpng tang kha'u: qua trinh sCf dung d cuoi giai doan thilf nghiem hau nhu may khong chu dpng nang, dUpc tay kha'u, ma phai dung ngoai lye ho trp mdi nang dupc Cac chi tiet bj hong phai thay the gom: Van an toan thap ap va cao ap; piston nang tay khau trai, tCf tiep nhan da xac djnh bj han lai, qua trinh SLf dung da phai thay bang piston dy phdng; piston nang tay khau phai bi cong, phai cat ngan va tien phuc hoi lai Hop giam tP'c, qua trinh sCr dung da phai thay 02 v6ng bi cua bp phan dieu khien tang kha'u phai Doi vdi tang kha'u, phai thay the hoan toan bu long, dai 6'c djnh vj tang kha'u v6i tay khau, dong thdi bi bien dang 05 lap rang khau Bp phan cap nu6c phun sUdng cung nam tinh trang chung cua thiet bj, he thong cap nudc phun sUdng ben trong, gioang, ph6t da cu lam giam ap lye nudc lam mat Vi nhung hong h6c cua bp phan nay, khong lam mat dupc dau thuy lye cung gop phan I6n lam cho bp phan nang tay khau khong hoat dpng Thiet bj cupn cap dien hoan toan bi hong tCf tiep nhan cho nen thyc te phai cupn cap thCi cong Dpng cd dien hoat dpng binh thudng He thong thuy lye, boi trdn, hau het cac gioang, ph6t deu da bj lao hoa, lam giam ap lye dau thuy lye, r6 dau, anh hudng tryc tiep den bp phan truyen dpng tang kha'u va tang tieu hao dau thuy lye, dau boi tren Vdi tinh trang nhu tren cho nen ty 30/3/2008 phai thao 66 may khau dUa ngoai, mac du c6n 3m nufa mdi ket thuc khai thac dien thu" nghiem Mang cao SGB 630/2x110 tiep nhan ty Khe Cham c6 dpng cd dan dpng dau va duoi mang, nhien chieu dai 16 chp thilf nghie ngan (45m), nen chi SLf dung mpt dpng CO dan dpng dpng co lai qua kiem tra thay each dien kem, mat cpc tiep da't va da khong sij" dung Trong 16 chd thi!r nghiem dpng cd dien cua mang cao hoat dpng binh thudng Hop giam toe hoat dpng binh thudng Xi'ch va gat mang cao da mon, cu, dd da phai thay hoan toan bang xfch va gat mdi, lay ty nguon dy phdng Thanh chan m i n g cao hau het bj bong khdp ndi vdi keo cua dan chdng, hoac bj gay Nguyen nhan chi'nh la ket cau dau keo cua dan chdng VINAALTA theo thiet ke, che tao cua Sec khdng phu hpp vdi mang cao SGB630/110 cua Trung Qudc Chi'nh vi gay cac khdp nd'i nen viec di chuyen dan chdng rat khd khan, lam gian doan san KHCNM * s o 9/2008* CNKTHL xuat (quy ddi) 410 gid Cac chi tiet khac nhUcau mang, rang, luPi hdt, tinh trang lam viec binh thudng Tram bam phun suang XPB250/55 va bo loc XPA tit tiep nhan da xac djnh cac dudng dng, khdp nd'i bj han, bong va bien dang, nudc rd ri va khdng tao dupc ap lye TrUdc dUa vao Id da td chu'c bao duPng toan bp cac chi tiet, han dap sau dd mai p h i n g nhung vj tri cd dng bj rd, thay toan bd gioang, phdt, thay ddng hd ap lye dau Tuy nhien, may bom da cu nen cung chi tao dupc ap suat 3,0 MPa (dac tfnh ky thuat la 5,5 Mpa) Thyc te dUa vao SLf dung Id chp cung chi hoat ddng dUpc nCfa thdi gian dau va cung ludn gap hdng hdc, bj vP 02 tdng sd xi lanh, gay piston, piston cdn lai bj cong Tram bien ap KBSG-6306/0,69, sau van hanh thLf tren mat bang da bj doan mach, chay; ap td mat A0B630 hoat ddng binh thudng sudt giai doan thLf nghiem; Khai dong tCf QJZ300 va QJZ-200 qua trinh SLf dung bi hdng, phai thay tay dao, hdng bp dieu khien phai sLfa chCra lan Danh gia tieu hao vat tu Trong Id chp co gidi hoa ddng bp, vat tu chu yeu bao gdm dau thuy lye, dau boi tron, dau nhu hoa APP-2A, rang kha'u va mdt sd vat tU khac Chi tiet tieu hao vat tU chu yeu d Id chp thCf nghiem trinh bay bang Thong tin khoa hpc cong nghe mo ^ y Bang Tdng hop tieu hao vat tu chu yeu did TT chathungh iem Thd gian su dung Danh muc vat tu Thang 12/07 Thang 1/08 Thang Thang Thang 2.069,7 9.132,7 3.564,0 3.642,3 968,0 - - 200 160 - 180 40 40 San lupng, ngan T Rang kh§'u, cai Dau TL APR 140, kg 100 Dau BR 320, kg 209 209 418 418 - Dau PLC 100, kg 209 418 100 1054 100 Dau HP 46, lit - - 50 40 20 Dau APRCS 100, lit 25 32 22 - Dau HP 46, lit - - 50 - - Md M203, kg - - Md IK 15, kg - - - 10 Bu Idng cac loai, bp 44 502 - 240 306 11 Go chdng Id, m^ - - 3,216 18,466 - 12 Bich thep, cai 10 - - - 10 13 Gong dac biet, bp 32 27 - 40 - 14 Cap thep CD22, m 50 50 70 - - Thdng ke bang tren day cho thay nhilfng vat tu chCi yeu phuc vu ddng bp thiet bi may khau, mang cao va dau nhu hoa cd mCfc dp tieu hao Idn Dd'i vdi cac loai dau thuy lye cho may kha'u, dau bdi trdn, nguyen nhan chi'nh la cac thiet bi da cu Ddi vdi dau nhu hoa, cd the chat lupng dau APP-2A khd hoa tan, nhanh gay can va bien mau nen phai thay dau nhieu tan Rieng ddi vdi rang kha'u chi phf tang cao thyc te qua trinh khai thac thCf nghiem thudng xuyen gSp da kep trudc gUdng kha'u va Idp da cupi ket d nen Chi'nh vi vay mLfc dp tieu hao vat tu d day chua phan anh dung thyc chat, chi la bai hpc kinh nghiem trien khai ap dung cong nghe cd gidi hoa ddng bp sau dan chdng bj nijl mdi han chju lye, ddi hdi nha che tao phai rut kinh nghiem va hoan thien cdng doan Ket luan Trong day chuyen 16 chp thu" nghiem cd gidi hda ddng bp, he thdng thiet bj may kha'u than MG200-W1da cu, chuyen nhupng ty CPng ty than Khe Cham qua trinh SLT dung thudng xuyen bi hdng hdc, la nguyen nhan chfnh gay ach tac san xuat, anh hudng khdng tdt den ket qua thCf nghiem Ddi vdi dan chdng, la san pham lan dau tien dupc gia cong che tao phan cd khf nudc, giai doan thLf nghiem cung ddng thdi de kiem chLfng ve chat lupng, lam cd sd viec hoan thien them ve ky thuat, cdng nghe che tao dan chdng sau Thuc te qua giai doan thCr nghiem da bpc Ip mpt sd khiem khuyet khau che tao Odi vdi cong tac quan ly ky thuat thiet bj, quan trj chi phf vat tu phu tung thay the, chi phf nguyen, nhien lieu, dpng lye, v.v ben canh viec khdng ngUng nang cao y thyc cua cong nhan, tyng dieu kien ap dung cu the, can thiet phai hoan thien cac quy trinh van hanh, bao dUdng, SLfa chua (cac cap dp) thiet bi, hoan thien djnh mLfc tieu hao vat tu, nguyen, nhien vat lieu, lap cac hd so theo doi cho tyng thiet bj, ca ve ky thuat va quan tri chi phf, can dy phPng cac linh kien, phu tung hay hdng hdc nham chu dpng viec sCfa chi/a thiet bj qua trinh SLf dung./ KHCN.M * SO 9,2008* CNKTHL ... tieu hao vat tu chu yeu did TT chathungh iem Thd gian su dung Danh muc vat tu Thang 12/07 Thang 1/08 Thang Thang Thang 2.069,7 9.132,7 3.564,0 3.642,3 968,0 - - 200 160 - 180 40 40 San lupng,... on dinh; May cat kV cung tuong ty trudng hop cija to'' hpp dieu khien, chat lupng nguon dien nen ty dau khong hoat dpng, phai sij'' dung may cat hien c6 cua Cong ty than Vang Danh Mjy khau SL.W/,... may kha''u MG200W1 de khai thac 16 chp cO gidi hda Cung voi nhiem vu van tai than gUdng va than tran, mang cao c6n la be 66 va dudng dan cho may kha''u di chuyen qua trinh kha''u than Cac bp phan chinh