Thong tin khoa hgc cong ngh# m o (/ NGHIEN Cl}U AP DUNG THUT NGHIEM GIAI PHAP SUT DUNG HOA CHAT TRONG DAO LO VA KHAI THAC THAN VUNG QUANG NINH Basing on ttje overseas experience and demands from TS LE eCrc NGUYEN domestic actual production, recently Institute of Mining Science ThS PHAN VAN Vl^T and Technology (IMSAT) has carried out some research works KS NGUYEN OO'C TRUNG on the utilization of chemicals in underground coal mining Vi0n Khoa hQC Cong ngf}$ Mo - Vinacomin activities, as well as coordinated with overseas experts and Bien t$p: TS Trirong Duv Dir domestic underground mining enterprises in developing the pilot application of the research results to the actual production This paper introduces ihe research results and evaluates the efficiency in using chemicals drift driving and coal mining activities at Quang Ninh area I.Datvdndl Theo cdc tdi lipu tham d6 dja chat va thuc t l san xuit cho thiy, cdc mo than ham 16 vCjng Quang Ninh c6 dieu kipn dia chat thupc loai phue tap, dia ting chi>a than thuang c6 nhieu phay phd, kiln tgo hoac ddi chua nuac nglm khiln qud trinh ddo 16 vd khai thdc gap nhieu kho khan, thdm chi c6 t h i xay nhu-ng nguy co mit an todn nhu tgt noc, \cf guong, bgc nuo-c mo, v.v Dac biet o- m6t s i vfa than khai thdc, da phdt hign dupc nhu'ng dau hieu eho thiy than CO tinh chat ehdy npi sinh, tiem an nguy ea xay ehdy mo, c6 the dan d i n thiet hai ve nguo'i vd cae phuang tien san xuat Nhung kho khan ndy da dat yeu elu cap thiet c i n nghien cuu ung dgng tien bg khoa hpc ky thuat mo'i nham I n djnh vd nang cao higu qua san xuit, tOng buac cai thi$n moi tru6'ng Idm vigc ham 16, ndng cao mi>c 36 an todn va bao vg sue khoe eho ngu^i lao dgng Cf cac nude tien tiln tren t h i gidi, dilu kien tuang tu nhu tren, ngudi ta xu ly bang giai phdp bam ep h6a chat gia cudng qua trinh thi cong dudng 16 hoac khai thdc 16 ehp Giai phdp ndy da cho phep nang cao higu qua san xuit, eai thign dieu kign Idm viec vd ndng cao muc dg an toan lao dpng Tren ca sd kinh nghiem cua cdc nude tren t h i gidi vd xuit phdt tu nhu c i u thuc t l san xuit nudc, nhu'ng nam gan day, Vi$n Khoa hpc Cong ngh0 Mo da thyc hien mpt s i eong trinh nghien CCHU v l v i n de su dung hoa chat khai thdc than him 16 va phii hpp vdi cdc chuyen gia nudc ngodi, cae don vj him 16 nudc trien khai dp dgng thu nghiem kit qua nghien ci>u vdo thue t l san xuit Bdi viet ting hp'p nhung kit qua nghien cuu vd ddnh gid hieu qua mang lai cua cdc giai phdp dp dgng thu nghiem hoa chat, qua d6, de xuit hudng nghien cuu hodn thien va trien khai nhdn rang dp dgng cho cdc don vj mo h i m 16 khac vung Quang Ninh Tdng hp'p kinh nghiem su* dung hoa chdt khai thdc vd ddo Id t^i mot sd nu'dc tren t h i gio'i Tai nhi>ng nude c6 nen c6ng nghiep khai thdc mo tien tien tren t h i gidi nhu Nga, Due, Ba Lan, Slovakia, Australia, My, v.v v i n de su dgng hoa chit c6ng nghiep khai thdc mo vd xdy dyng eong trinh nglm da dupc nghien cuu dp dung thdnh cong tu nhij-ng nam 90 cua t h i ky trudc Oin nay, rat nhilu nudc dang tilp tgc nghien cuu san xuit vd su dgng cdc loai hoa chat ngdnh cong nghiep mo, diln hinh nhu mpt so hang Minova, Weber vd Schaum Chemie Bauer GmbH & Co.KG w Essen, v.v Cdc loai hoa chdt dug-c san xuat cung rat da dang vd phong phu thuOc vao muc dich su dgng Trong d6, nhung loai hoa chit su dgng p h i biln nganh md hien bao gim: Wisofoam E, Pianocem B, Durafoam, Isoschaum (Ure Formaldehyd), Porocem C, Erkadol, Erkadur, Igloneye PL, Mari Kley, v.v Phan Idn cdc loai hoa chit su dgng cong nghigp mo dugc san xuat d dgng bpt hoac dung djch long nen rat thuan Ipi cho khau van chuyen Khi su dgng KHCNM S 6/2015* CNKT HAM L Thong tin khoa hpc cong nghe mo se pha trpn mpt s i thdnh phin hoa chat vdi ho^c pha dung moi Id nudc bang to hap bam chuygn dgng d l tao thdnh san phim dang keo hole dang bpt co t h i bom, phun d l ddng vdo vj tri can thi cdng Hdn hgp keo (bpt) hoa chat cd nhilu tinh nang uu vi|t han han so vdi nhu'ng vdt li^u ty nhien nhu: khong d$c hai d i i vdi ngudi; ching ehdy no tit; cd tinh truang nd manh, d i ddng xdm nhap vd lap day cdc ke nut Id hing d i t dd; co kha nang ddng cCrng nhanh vd bam dinh tot tao lien kit ma sdt giua cdc Idp da hoac than; keo (bpt) h6a chit d trang thdi ddng cung c6 dp bin vu-ng cao (dp ben nen cd t h i dat tdi 20 MPa hoac Idn han), cd tinh cdch nhjgt, chong nudc vd tham thiu qua r l t tit Vdi nhijng tinh nang ndy cho phdp si> dgng cdc loai hoa chit de thyc hign nhieu mgc dich khde qud trinh khai thdc vd dao 16 nhu: xdy dyng cdc tudng chdn gi6 hodn toan hoge tudng chan cd cua so dilu chfnh gid tren cac dudng 16 (hinh 1a); phun phu tao Idp mdng cdch ly nhan tao trdn bien dudng 16 (hinh b); bam phun vdo lulng phd hoa Id ehp lap kin cdc khe hd d i t dd phd hoa d l cdch ly vung phd hoa (hinh lc); bam ep gia cudng khu vyc nga ba giua cdc dudng 16 (hinh 1d); bam ep gia cudng vj tri v6 nhdu nut ne hoac vj tri ring noc la guang 16 cha (hinh le, f); gia cudng khii da trudc guang qud trinh ddo Id ehuan bj (hinh Ig); lam tnj bao ve nhan tao dudng Id dge via thay t h i tni than (hinh 1h) Kinh nghiem si> dung nhO-ng san phim h6a chit ddo Id vd khai thdc than d mgt s6 nudc cho thiy, cdc loai hda chit cd t h i su dgng da dang, linh hoat ng dugc nhilu mgc dich khde nhag qgd trinh sdn xglt liu dilm n l i bat cga cdc giai phdp ndy Id: thi cdng dgn gian, nhanh ehdng; kha nang eg gidi hoa cao ndn tilt ki^m thdi gian vd nhdn lyc thi cong; tilt kiem ehi phi vat tu; v$t li$u nhdn tao hinh thdnh tu dung djch keo (bpt) hda chit cd kha ndng gia cudng khoi dd, cdch ly khdng va nudc, cdch nhi^t, ching chay tot han nhieu so vdi nhu'ng loai vat lieu truyin thing (go, dit set, cdt, gach, vua, v.v ) dang su dgng tai cdc mo than him Id nudc K i t qua trien khai ap dgng thir nghiem mpt s6 giai phdp su- dgng hoa chdt dao 16 va khai thdc o* cdc mo than h i m Id nirdc Nam 2011, Vien Khoa hgc Cdng nghe Mo da phii hgp vdi cdc chuyen gia Ba Lan, Ukraina vd mgt s i dan vj h i m Id trien khai dp dgng cdc kit qua nghien cuu vdo thyc t l san xuit Co thi dilm lai nhung k i t qua triln khai thu nghiem thdi gian qua nhu sau: 3.1 Giii phdp sO ditng hda chit lim tu^ng chan each ly nhin t^o phong chong chiy md, a TuOng cich ly b^ng ^' ^^"" ^'"^ ''^P ^^^^ '^ ^- ^^"" ^'^^ ^^^^ "^ P^'^ ^- ^ ° ' ' " ^P ^'^^ '^^^^ ^'^ h6a chSit tr&n 6ii6ng 16 "^^" *^° ^^"^ ^^^ ^^^' ''^'^"3 P^^ ^^^ ^^^^'/ ''^ cifOng vit cdch ly khu vyc tr&n thdnh 16 ch