Thong tin khoa hpc cong nghe m o
MOT SO CONG NGHE SANG TUYEN THAN DUNG CHO LUYEN COC
TAI C O N G T Y T H A N J A S T R Z E B S K A S P O L K A (BA LAN)
Jastrzebka Spolka Coal Company was established on Istof April. 1993 and was one of the greatest coal companies in Poland owning five bituminous coal mines As estimated, the coal reserves from these mines is approximate 250 million tons With the coal output of 55 thousand tons per day. these mines have also cre- ated about 8 million tons of waste annually Most of the coal preparation plants have utilized different coal concentrating machines such as jig. dense media bath, and froth flotation. Part of the flotation tailings is used for underground backfilling purpose
C6ng ty than Jastrzebska Spplka (Ba Lan) dyge thanh l^p ngly 01/4/1993, nlm d phia Tay Nam cua Ba Lan, quan ly va khai thac 5 mo than: Borynia, Jas-Mos, Krupinski, Pniowek va Zofiowska. San lygng than cua Cong ty la 55 nghin t i n than sach/ngay tyong dyang khoang 16,5 trieu t i n than sach/nam, d l thai khoang 8 trieu tin/nam.
Tit ea cac mo than cua Cong ty than Jastrzebska Spolka d l u CO xydng sang tuyIn than. Cong nghe sang tuyIn tai cac mo than nay co 3 khau tuyIn tuyIn huyIn phu b l dli vdi cd hat Idn han 20mm, tuyIn may dai ling dli vdi cd hat I d 0,5 - 20mm, tuyIn nli doi vdi cd hat nho han 0,5mm. Rieng dli vdi mo than Kmpinski co 2 khau tuyIn: tuyen may dai ling dli vdi cd hat t d 0,5 - 70mm, tuyIn nli doi vdi cd hat nho han 0,5mm. Tai t i t ca d o xydng tuyIn, khau xd ly bun nyde va san pham thai eua tuyIn noi dygc thiet k l khep kin, C6 bin xydng tuyIn dygc trang bi may sly eho san pham than sach sau tuyIn noi,
Sa cong nghe tuyIn cua mo Borynia, Pniowek, Jas-Mos va Zofiowka dyac the hien tren h i n h l
1. Xu-dng tuyen mo than Borynia va Pniowek
Than nguyen khai dygc van chuyin qua cac gilng ddng bang thung cui (thung cui cua
mo Borynia co tai trpng 20 t i n va cua mo Pniowek 11 25 tin), sau d6 dygc dya din xudng ehuIn bj, tai day ngydi la sd dyng sang rung lo jydi 120mm (mo Bory- nia) va l6 lydi 150mm (mo Pniovi/ek). San phIm tren sang dyge loai bo tap chit tren bang nh^t tay Than trung gian dygc dap blng may dap con Brad- fordt. San pham dydi sang rung dyac nhap ehung vdi san phIm trung gian sau dap Bradfordt dya ve d p vao cac bunke d l van chuyin den xydng tuyIn than
Tai cae bunke, than dygc dya vao sang loai PZ phan thanh 2 san pham. C i p hat 20- 120 (150)mm dygc tuyIn bang huyIn phu c6n d p 0-20mm dyge tuyen blng may dai ling.
Tuyen huyen phu bi d p hat 20-120 (150)mm tuyen blng may tuyIn DISA ba
nyde bang sing khe sau d6 tilp tyc khd nydc trong may ly tam trydc khi dya vao bunke than sach San phIm trung gian dugc khd nydc sa bo blng giu nang khd nydc va dygc van chuyin d i n eac may ly tam. Sau khi khy nyde, san pham trung gian dygc dya vao cac bunke than cam chit lygng thap. C6n da thai dyac dya din bunke da thai.
Tuyen noi
Bun d p hat mjn -0,5mm tCr may ling dygc dya v l bk ling CO dac. Tai b l c6 dac, bun dyac b l sung keo tu d l tang tie dp ling dpng, phln can dyge bom ve may tuyIn nli ca gidi - khi nen loai IZ. Qua trinh tuyen cho ra hai san pham. San pham than sach sau tuyen noi dygc khd nydc hai lan, lan dlu dygc khd nydc bang may Ipc dia diln khong va tilp theo dygc sly kho san phIm, ty trpng phan chia bang may s l y tang trIng loai 1,45g/m3 va 1,8 g/m^ (moi ROW. Than sach tuyIn noi sau tacdng tuyIn la huyIn phu man-
hetit). Than sach dygc rung rda tren sang rung sau do dya vao bunke than sach. Than trung gian dygc rung rda tren sang njng va dygc dap blng dap tryc loai UP thanh than cam. Oa thai sau khd nydc dygc dya vao bunke da thai.
Tuyen bang may dai fang d p hat 0-20mm dygc tuyen trpng may ling khi nen 3 san pham. Than sach dygc khd
khi dygc say khp dyge nhap Chung vdi san phIm than sach sau tuyIn may ling.
San phIm bun thai sau tuyIn nli dygc dya ve b l co dac.
Phln Idn san pham bOn thai sau tuyen noi dygc dya din xudng khd nyde ca gidi cung vdi mpt phan quang duoi khd nydc cua gau nang. Tai xydng khd nude eg gidi, cac san pham biin thai dygc x d ly bdi may Ipc ep tim loai PF-ROW. San phIm sau khd
KHCNM s o 7/2012* CN TUY^N C H ^ B I £ N THAN ^ KHOANG SAN
Thong tin khoa hpc cong nghe m o
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Hinh 1. Sty do cdng nghe tuyen than cua mo Borynia, Pniowek, Jas-Mos va Zofiowka n y d c b l n g may Ipc ep l i m cung
vdi san pham thai cua may ling dygc sd dung trong nganh cong nghiep xay dyng
2. Xydng tuyIn mo than Jas - Mos
Than nguyen khai dyge dya len qua eac gieng ddng bang thung cui (loai thung cui 15 tin), sau d6 dygc bang tai van chuyin d i n xydng ehuIn bj.
Than nguyen khai dygc sang tren sang rung I6 lydi 150mm, San phIm trdn sang dygc dya den bang tai nhat tay loai bo tap chit, than eye dygc dap blng
may dap con loai Bradfordt. Sau d6, than dyge dya din sang phan loai ZDR d l tach thanh 2 d p hat: Cip hat 20-150mm dyge tuyIn trong moi trydng huyIn phu va d p hat 0-20mm dygc tuyIn bang may tuyen dai ling,
TuyIn than d y g c chia thanh 3 khau: tuyIn trong rnay tuyIn huyen phu, tuyln b l n g may lang va tuyen noi d p hat min. Phyang phap tuyln cung g i l n g nhy tuyen than tai mo than Borynia v^ Pniovvek.
Khd nydc san phIm than
sach sau tuyln noi chi dung mot d p trong may ly tam lang - phin Ipc loai BIRD, san phIm sau may ly tam ling cung vdi san phIm than sach sau may ling dygc nhap ehung vdi nhau. San phIm da thai sau tuyln nli dyge CO dac trong be ling, toan bp san phIm thai dygc sd dyng lam vat lieu chen 16 trong khai thac him 16
3. Xydng t u y l n mo than Zofiowka
Than nguyen khai dygc van chuyen td cae gilng ddng blng thung cui (loai thiing cui 20 tin)
KHCNM s6 man* CN TUYEN C H £ BI^N THAN - KHOANG SAN
Thong tin'khoa hoc cong nghg md
va dygc bang tai dya d i n xydng chuin bi, dygc sang tren sang rung 0200mm San phIm tren sang dyge dya den bang nhat tay loai bo tap chit, sau d6 dyac dap blng may dap ham loai Brieden, San phIm dydi sang cung vdi san phIm may dap dyac tiep tye phan loai trdn sang loai PZ thanh hai d p hat:
d p hat 20-200mm d y g c tuyln bang huyIn phu va c i p hat 0-20mm dygc tuyln blng may ling
Qui trinh tuyln than dyge chia thanh 3 khau: tuyln huyin phu, tuyln blng mly ling cam va tuyen nli d p hat min Phyang phip tuyln eiJng lyang ty nhy d eac mo Borynia, Pniowek
4. Xydng t u y l n mo than Krupinski
Than nguyen khai dygc van chuyin qua gilng ddng blng thung cui (thung cui loai 20 tin) va dygc bang tai dya v l xydng chuIn bj. Than nguyen khai dyac dya len sang rung loai WK 080mm, San pham tren sang dyac dya sang bang nhat de loai bo tap chit, sau do dyge nghien blng may nghien con loai Bradfordt va dygc do vao bunke d p eho xydng tuyln,
Td cac bunke, d p hat 0- 80mm dyae tuyln bang mly ling 3 san phlm Than sach sau khi khd nydc dygc dya sang sang njng phan loai 020mm.
San phlm tren sang dyae nghiln thanh than cam va dya di tieu thy San phlm dydi sang dyge khd nude blng sang OSO va may ly lam San phlm trung gian dyge van chyyen va khd nydc sa bo blng giu nang khd nydc va sau do dygc phan loai • tren sang tTnh khe 012mm. Da thai may lang dygc khd nydc
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Hinh 2. Sa do cong ngh^ tuyen than cua mo Krupinski blng gpu nang khd nydc, sau
do dygc bang tai van ehuyin d i n bunke da thai
d p hat dydi 0,5mm td may ling dygc tuyen blng may tuyen nli ca gidi dgng khi nen loai IZ Bun thai sau tuyln nil dyge dya ve b l ling sau do dyge dya din xydng khd nyde eg gidi dung may Ipc ep khung ban khi nen loai PF-ROW. Bun thai sau khd nude blng Ipc ep khung ban dygc lyu kho, phye vy cho eong tac khai thac cua mo San phlm than sach sau qua trinh tuyln noi dygc khd nydc blng may sly loai tang
trong. Sa d l eong nghe tuyln cua md Krupinski dygc Ihl hien tren hinh 2.
Cong nghe tuyln than cua cac mo gidi thieu trong bai bao nay chu yeu phye vy chp tuyln than luyen elc, D l ap dyng cho cong tac tuyen than d Viet Nam, eIn lygc bo mpt s i khau cong nghe d l phu hgp vdi tinh ehit than da va giam chi phi san xult./.
Nguyen Thj Thuy Linh Dich theo: Cdng ngh$ sing tuyin than Cdng tythan Jastrzeb- ska Spolka. NSm 2004.
KHCNM s d 7/2012* CN TU Y^N C H £ BI^'N THAN - KHOANG SAN