Thong tin khoa hpc cong nghe m o
HE T H 6 I \ G QIJAJ\ TRAC KHI TlT DOIVG tai Cong ty than Quang Hanh
KS TRAN TU BA Trung tam An toan Md
Together with the increasing production ratio of underground mining due to the drain of coal seams for open pit mining, the underground working areas have to come more and more deeply with higher level of hazard on mine firedamp gas. In recent years, many underground mine firedamp gas automatic monitoring systems have been installed at underground coal mines in VINACOMIN. This paper introduces the functional performances of the mine firedamp gas automatic monitonng system installed in October, 2007 at Quanghanh Coal Company by Coal mine safety management Center.
Theo ke hoach trong Tdng so 66 phat then nganh than, dy kien san lupng than ham Id se nang len va chiem ty trpng ty 40% len 60% vao nhung nam 2015-2020. Vdi ke hoach tang san lupng dd, khai thac ham Id ngay cang xudng sau, vdi quy md khai thac rpng Idn hon, mCfc 66 nguy hiem ve khi metan cang tang len. Cu the gan day nhat vao nam 2006 da xay ra vu chay nd khf metan d khu Yen Ngya, Cdng ty than Thdng Nhat lam chet 06 ngudi.
TrUdc tinh hinh dd. Tap doan Cdng nghiep Than - Khoang san Viet Nam da len chUOng trinh lap dat cac he thdng do dac khf t y ddng lan lupt cho tat ca cac don vj khai thac than ham Id trong TKV.
ChUOng trinh dUpc chi dao thdng qua cac van ban sd 174/CV-MT ngay 8/5/2006 cua Tong Giam 66c Tap doan ve viec 'Trang bj he thdng canh bao khi metan tap trung ty ddng", thdng bao so 81/TB-
AT ngay 9/8/2006 ve ket luan cua Tong Giam ddc Tap doan TKV tai Hdi nghi danh gia dpt tdng kiem tra an toan lao ddng thang 6/2006 va mpt sd van ban khac. Cdng tac tu van thiet ke dUpc giao cho Vien Khoa hpc Cdng nghe Md, cac don vj khai thac than ham Id la chu dau tu cd trach nhiem phdi hpp vdi Vien Khoa hpc C6ng nghe Md thyc hien cac budc dau tUxay dyng.
Oe kip thdi khdng che kiem soat khi md, Vien KHCN Md da chi dao Trung tam An toan Md thyc hien cdng tac khao sat hien trudng, lap dy an dau tu he thdng quan trac khi ty dpng cho Cdng ty than Quang Hanh. Trung tam An toan Md da thiet ke ky thuat thi cdng - tdng dy toan va da phdi hpp vdi Cdng ty than Quang Hanh khdi cdng lap dat he thdng vao thangi0/2007. Trong thdi gian hon 2 thang, cac can bd cua 2 don vj da miet mai khan truong keo cap, ddng tiep dja, lap dat cac thiet bj trong Id va
tren mat bang. Den thang 12 nam 2007 he thdng da dupc lap dat hoan chinh bao gdm cac hang muc thiet bj cO ban nhusau:
1. He thdng thiet bj chfnh do CARBOAUTOMATICA Balan che tao gdm:
- 02 tu KSP-2C : Tu sd 1:
gdm 40 kenh do; Tu sd 2: gdm 20 kenh do
- Dau do khi metan CPC- 2 : tdng sd 36 dau do + 10 dau dy phdng
- Dau do do tdc 66 gid SAT-1: 05 dau do
2 - Bd phdi hdp lien ddng cat dien : gdm 22 bp do Vien KHCN Mo che tao.
3 - He thdng cap trong dudng Id: tren 17 nghin met cap thdng tin do Cdng ty Co phan Cap bUu dien che tao bao gdm:
- Cap thdng tin loai 30 ddi day tdng chieu dai 1282m.
- Cap thong tin loai 10 ddi day tdng chieu dai 475m
- Cap thong tin loai 7 doi day tdng chieu dai 1.044m.
- Cap thdng tin loai 3 ddi day tdng chieu dai 14.550m.
He thdng thiet bj dUpc lap dat da kiem soat khi cho cac khu vyc khai thac dao 16 cua Cdng ty bao gdm 9 Id chp va 06 Id chuan bi.
Nguyen tac hoat dpng cua he thdng dupc md ta nhu trong so dd hinh 1:
KHCNM* SO 9/2008* AN TOAN MO
Thong tin khoa hpc cdng nghe m o
Hop chdng set 80 kenh
/\
V
Hop chdng set 80 kenh
M,
Dau do CH4
Dau do CH4
©
D3u do CO
(K) ^^^^°
CH4
Attdmat Attomat
Hinh 1: Sadd he thdng quan trdc tai Cong ty than Quang Hanh
Tu trung tam dUpc dieu (gpi la may chu). Khi do phat cao, vupt ngUOng cho phep, khien thdng qua may vi tfnh hien thay ham lUpng khi len dau do khf ty bao dpng bang
KHCN.M* SO 9/2008* AN TOAN MO
Thong tin khoa hpc cong nghe mo
Hinh 2: Cac thiet bi trong phdng quan trac trung tam
Hmh 3: Ket ndi he thdng thiet bj trong phdng quan trac trung tam
tfn hieu am thanh, ddng thdi tren tu cd tin hieu bao dpng, gul tin hieu cat dien sang may can bd van hanh he thdng ngat de ngat dien cac thiet thdng bao dung sao xuat, so dien lien quan dam bao an tan cdng nhan ra vj tri an toan, toan. Tren phdng quan trac xCf ly bang cac bien phap tren mat dat ludn c6 dpi van thdng gid de dua ham lupng hanh he thdng tryc 24/24 gid. khf xudng mdc cho phep. Sau Khi cd hien tupng khf tang cao, khi xCf ly xong nd'i thdng tin
ddng dien cho phep trd lai san xuat binh thudng.
Cac thdng tin tren may chCi (dat d phdng quan trac trung tam) dupc truyen qua mang ADSL vao cac may mang dat tai cac vi tri khac nhu phdng dieu hanh san xuat trong md, mpt vai phdng giao ca dat d vj tri CLfa Id.v.v. Tai cac vj tri nay tren may tfnh mang cd the quan sat dupc dien bien cua ham lupng khf trong cac khu vyc khai thac cua Md de kip thdi chi dao khdng che cac nguy co chay nd khi.
Ngoai ra, may tinh chu cua he thdng da dupc cai dat phan mem tCf dd chuyen sd lieu do dac len mang Internet. Tai bat ky vj tri nao khac, nha ngoai van phdng mo, tren van phdng cua Tap doan deu cd the thdng qua mang Internet de quan sat dien bien ham lupng khi va cac thdng sd khac cua he thdng dudi ham Id.
Sau khi dua vao hoat ddng, he thdng da phat hien ngay cac khu vyc cd ham lupng khi cao, cac can bd van hanh he thdng da dUa ra cac bien phap tang cudng thdng gid de hda loang khi metan, kjp thdi khac phuc tinh trang nguy hiem va dUa khu vyc trd lai san xuat binh thudng./.
KHCNM* SO 9/2008* AN TOAN MO
