CNM HOI NGH! KHOA HOC KY THUAT MO
T O A NQUOC LAN THiTXX
TINH HINH sif DUNG THIET B! KHAI THAC, CHE BIEN KHOANG SAN CUA TONG CONG TY K H O A N G SAN-TKV
TS. TA NGOC HAI - Tap doan CN Than-Khoang san Viet Nam ThS. TRAN DLfC THO - Vien Ca khi Nang lugng va Mo-TKV
KS. DAO MINH SON - Tong Cong ty Khoang san-TKV
T
dng Cdng ty Khoang san-TKV la mdt trong hai Tong Cdng ty cCia Tap doan Cdng nghiep Than-Khoang san Viet Nam cd chac nang chfnh la hoat ddng tham dd, khai thac c h i biin (tuyen khoang, luyen kim) va tieu thu (ke ca xua't khau) cae khoang san kim loai mau (ddng, kem, chi, ang ti moan, vonfram,...); kim loai den (erdmit, quang sat mang gan...); kim loai quy hiim (da quy, vang, bac, eac chat hiem...) phi kim va vat lieu xay dyng. Oe dap Cfng nhu elu san xuat, Td'ng Cdng ty cd mpt so lupng Idn thie't bj phue vu khai thae, ehe biin khoang san. NhiJmg nam gan day mdt sd thiet bj da dupc dau tu mdi nhu b Cdng ty dong Sin Quyin.Cdng nghe khai thac, c h i biin khoang san hien
dang thye hien b cae Cdng ty eCia Tong Cdng ty Khoang san rat da dang. Tuy thudc vao loai khoang san, tai nguyen... So do ehung day ehuyin cdng nghe khai thac, c h i biin khoang san trinh bay tren H.1. "
Tuy theo tyng diiu kien khai trudng, khoang san cu the cd the khdng eln mdt trong nhung khau trong sd do. Theo kit qua diiu tra, khao sat tai 10 cdng ty khai thac, e h i biin khoang san chi'nh va 02 Cd sd Cd khf cCia Td'ng Cdng ty Khoang san thi td'ng sd thiit bj khai thac, c h i bien, gia cdng cd khi, thi nghiem do ludng va thiet bj phu trp khae la 1274 chiec, trong dd thiit bj phue vu khai thac, ehe biin khoang san la: 1081 d i u thiit bj.
Khoan da't da
quang No min Xuc boc Van tai Oo thai
J
Sang Dap Nghien Tuyen
San pham
Thai bun H.1. Sa do chung day chuyen cdng nghe khai thac, che bie'n khoang san.
Theo myc dp diu tu trang thiet bj khai thae ehi biin khoang san cCia cac cdng ty cCia Tdng Cdng ty Khoang san-TKV cd the ehia thiit bj thanh cac nhdm sau:
1. Khai thac
••• Cac ddn vj vya dupe dau tu xay dyng hcac vya bo sung trang thiit bj khai thae mdi nhu Cdng ty ddng Sin Quyen, Xi nghiep sat Na Lung - Cdng ty CP Khoang san va Luyen kim Cao Bang. Qui rnd va myc dp d i u tu thiet bi Idn va hien dai.
• Cae ddn vj khai thae thee edng nghe da thiit k i vdi myc dp san xult on djnh nhu Xf nghiep kem chi Chp Diin, Xf nghiep kem chi Lang Hich.
• Cae ddn vj tai nguyen giam cd nhieu diem mo phai khai thae tan thu nhu Xf nghiep thiic Dai T y Sdn Dudng, Bae Lung; Vcnfram Thien Ke; Cdng ty Luyen Kim Mau Nghe TTnh.
2. Tuyen che bien
•:• Cae xf nghiep, day ehuyin tuyin dupe thiit k i lap dat mdi, xay dyng dong bp nhu Nlia may tuyen ddng Sin Quyin; day ehuyin chi kem Chd Oien, Lang Hich.
• Cae day ehuyin tuyen da xay dyng ty lau nhu Phan xudng tuyen tinh - Cdng ty Luyen kim mau Thai
CONG NGHIEP MO SO 5 - 2009
HOI NGHI KHOA HOC KY THUAT MO TOAN QUOC LAN THUf XX
CNM
Nguyen, Xf nghiep tuyen - Cdng ty Kim loai mau Nghe TTnh; Cae day chuyin tuyen dat tai hoac gan khai trudng. Cd sd do cdng nghe ddn gian, ft thiet bi.
3. Mot so' danh gia ve s u dung thiet bj cua Tong Cong ty Khoang san-TKV
3.1. Ve thdi gian dua thiet bj vao sif dung:
Phan tfch so lieu thd'ng ke cd the thay thdi gian da sCf dung trung binh cCia thiet bj khai thae, ehe biin khoang san la 5,68 nam. Thdi gian sCf dung thiit bj nhu vay la da qua giai doan hoat ddng ed hieu qua nhat, mdt sd thiet bj da phai den va qua thdi ky dai tu. Thdi gian sCf dung trung binh eua eae nhdm thiit bj nhu sau: Thiet bj do ludng, thi nghiem 14 nam; thiit bj khae: 5,19 nam; thiet bi tuyen: 5,47 nam; thiit bj khai thac: 5,19 nam.
Tuy nhien, neu tfnh den ye'u td cae thiet bj eua Cdng ty mo tuyen dong Sin Quyin mdi dUa vao hoat dpng, thdi gian dua vao sCf dung mdi 02 nam va sd lapng thiet bj eua Cdng ty chiim ty trpng Idn 234/1081 (21,2 %) thi ttidi gian dUa vao sCf dung tmng binh eua eae ddn vj cdn lai Idn hdn nhieu: dat 6,7 nam.
Oac biet, thdi gian sCf dung trung binh cCia thiit bj dc ludng thCf nghiem Idn, nghTa la thiit bj da lac hau, cd nhang thiet bi da daa vao sCf dung lau, d i n 26+32 nam. Thdi gian dua thiet bi vao sCf dung trung binh cCia cae cdng ty trinh bay trong Bang 1.
Bang 1. Thdi gian dua vao sur dung trung binh thie't bi cac cdng ty.
Cdng ty KLM Thai Nguyen KLM Nghe TTnh KLM Tuyen Quang MD Sin Quyin Cromi't Co Oinh KSLK Cao Bang Khoang san III Khoang san IV KS va Cd khf Khoan - KT Mo
Sd lupng 306 144 95 234
67 115
36 46 16 22
Thdi gian;nam
7,79 13,26
3,64 2,02 3,62 13,23
4,94 4 5,8 14,29 Phan tfch qua trinh diu tu thiet bj theo nam cho thay:
• Trong thdi gian khai thac khoang san dupe day manh, cac md dapc md rdng sd lapng thiet bi tang len ra't Idn nha b md thiec TTnh Tue, thiec Quy Hpp, Sdn DUdng, Cromit Co Dinh;
•:• Thdi ky sut giam san lupng do eae dieu kien khach quan nhu tai nguyen, khai trudng... nhan lye va thiet bi mot sd cdng ty, xf nghiep giam. Cae thiet bi Idn, he thdng tuyen ddng bp dupe thay bang cac thie't bj cdng, nang suit nhd hdn, day chuyen ddn
gian hdn de dam bao hieu qua san xuat nhu b md thiic TTnh Tue, Sdn DUdng...
••• Thdi ky dau tu mdi eho cac mo va day chuyen ehe biin khoang san trong 4 nam lai day.
*> Oau tu va dua mo va nha may tuyen dong Sin Quyen vao hoat dpng, day chuyen tuyen ehi kem Chp Oien, Lang Hich, tau cud'c - tuyen Cromft Cd Djnh, dau tu xe BelaZ-7540A eho md s i t Na Lung...
Cac thiet bj khai thac che bien khoang san hien dang sCf dung ed eae thiit bj cdn lai trong giai doan 2, tham chf ty giai doan 1, nhung chu y i u la trong giai doan 3. 6 td la phUdng tien van tai quan trpng trong khai thac khoang san. Thdi gian dUa vao sCf dung tai 10 cdng ty Idn eua Tong Cdng ty md ta tren Hinh 2. Nhan xet v i doan xe van tai md cCia Tong Cdng ty khoang san ed the thay, day la mdt doan xe "tre", 104/141 (74,4 %) mdi dupe dUa vao SLf dung trong thdi gian <3 nam. Sd lupng xe mdi tap trung tai Sin Quyen, Chp Dien va Na Lung. Tuy nhien dd'i chieu vdi nhung van ban cCia Nha nadc thi nhieu xe can phai thanh ly (H.2).
120 100 - H
(T) 80 — GO • - 40 • - 20 • -
104
1 0 -9-
- 1 1 - -ia_
i. 1^ n n .1
< 3 4 - e 7 - 1 0 1 1 - 1 2 1 3 - i s 1G-13 1 9 - 2 1 2 2 - 2 4 t i l m 5i>duiic|
H.2. So lugng xe theo nam dua vao sCrdung.
Trong nhdm thiet bj khai thac, tfnh dong bd may xuc-dtd r i t quan trpng va cd quyet djnh nang suit thiet bj, hieu qua, sCf dung may xuc va dtd. Oanh gia sy dong bp giua dtd va may xuc cd the dung bieu do "Miin phd'i hpp xue-tai hieu qua" (H.3).
Theo bieu do ty tai trpng dtd da cd the xac djnh dung tfch giu may can dung hoac tii dung tfch giu may xue hien ed the chpn tai trpng dtd can thiet.
Bieu dd H.3 chi tinh den tUdng quan giua dung tfch gau xuc va tai trpng dtd, tuy nhien thee [2] ey ly van tai eung anh hudng tdi viee lya chpn dong bp xue-tai.
Nang suit khau xue-tai dupe hieu qua khi t^ sd giua dung tfch thung xe Vo va dung tfch gau may xuc Idn hdn hoac bang 2, nghTa la (Vo/E)>2. De giam thdi gian chd nhan tai, tUdng yng vdi ey ly van chuyen, ty sd hpp (V^/E) ly dupc khuye'n eac theo nhu trong Bang 2.
CONG NGHIEP MO SO 5 - 2009
HOI NGH! KHOA HOC KY THUAT MO TOAN QUOC LAN THUf XX
Bang 2. Ty' le hgp ly glUa dung tich thiing xe va giu may xuc.
Cy ly van chuyen, km 1^,5
< 5 8+12
T^ so "Vo/E"
4+6 6+10 8+12
Vdi ty trpng da y=2,6 T/m^ dung tfch gau xuc dong bp vdi tai trpng dtd tai nhu trong Bang 3. Sd lieu v i tai trpng xe, dung tich gau xuc eCia may xuc hien ed, ey ly van chuyen va khuyin nghj dong bp d td-may xue trinh bay trong Bang 4.
Bang 3. Tuang quan hieu qua glUa dung tich giu xuc va tai trgng dtd.
Dung tfch gau
xucE;
m^
3,2 5 8 10 12 15
Cuh 1+2
Vo,
m^
17,6 26 37 47 51 65
qo,
T 32 47 68 84 92 115
/ van chuyen;
3+4
Vo,
m^
20,5 31 45 57 64 80
qo,
T 36 55 82 102 114 142
km 5+6
Vo,
m^
25,6 38 58 73 82 102
qo,
T 46 68 105 130 150 182
Dung gau
20
15
10
5
0 (
tich ivlien phoi hop xuc xuc, m
I
5
-•
,.
-•
-- ''
-'
20
, .,
^- '^
•- '- '
40
., ' -- '
i
i
,-
f
i
1
'•<
_
-tai CO hie
.- ..
60 80 Tai trpng oto ti/dc
- .
100 , tan
i
,|-
\ .-'
j
i
1
u qua
\ \
i\
i .
•' i
_,
r-
\ -
120
-•'
140
\
1 I
H.3. Mien phoi hap xue-tai hieu qua.
Bang 4. Danh gia dong bo xue-tai.
Dan vi khai thac khoang san Xf nghiep chi kem Chp Diin KL Mau Nghe TTnh Xf nghiep thiec TTnh Tuc Md sat Na Lung Md sat Kfp Tudc Md sat Ha Hoa Cao Lanh Hang Ddi Khu Ddng Sin Quyin Khu Tay Sin Quyen
Tinh trang hien nay P, T
5 12 12+13
30 13+15 13+15 13+15
30 30
V, m^
0,6+0,7 1+1,4 0,4+0,6
3 08+2,1 08+2,1 08+2,1
4 4
C, km 0,5 0,3 1 1,5
1 0,5
3 1,6 0,75
V,„ m^
0,5+0,70 (TB-0,6) 1,4+2 (TB-1,8) 1,4+2 (TB-1,6) 3+4,6 (TB - 3,2) 1,2+2 (TB-1,6) 1,2+2 (TB-1,6) 1,2 + 2(TB-2,6)
3+4,6/3,2 3+4,6/3,7
Khuyen nghj Da ddng bp Tang dung tfch gau xuc Tang dung tfch gau xuc
DK1 Da ddng bd Da ddng bd Da ddng bd Oa dong bd Da ddng bp
Ghi chu: P - Tai trgng dtd, T; V - Dung tich giu xuc, m^; C - Culy van chuyen, km; Vf,, - Dung tich hgp ly cua giu xiic, m^; DK1 - Neu tang tai trgng dtd phai tang dung tich giu xuc.
5. Ket luan
• Tdng Cdng ty Khoang san-TKV ed mdt sd lupng Idn thiit bj phuc vu khai thae, e h i biin khoang san. Tuy nhien, sd lupng thie't bj eung mpt loai khdng nhiiu, vi vay khi dau tu mdi eln lau y de thuan Ipi eho cdng tae bao dudng, sCfa chua.
• Mdt sd thiet bj dua vao sCf dung da lau, eln dau tu mdi de dam bao hieu qua sCf dung. Mpt sd thie't bj da dau tu mdi nhu tau cud'c can cd phUdng an dua vao sCr dung phue vu san xuat.
• Trong cdng tae sCfa chua thiit bj: Sd thie't bj hien dai mdi dua vao can diu tu nghien curu sCra chua, che tao phu tung thay the de din chu ky sCfa chira cd the nhanh chdng sCfa chya phue vu san xua't.
• Tai mdt sd ddn vj can dong bp khau xue tai de dam bao hieu qua sCf dung thie't bj.n
TAI LIEU THAM KHAO
1. Ta Ngpc Hai va nnk. Bao eao td'ng ke't d i tai
"Khao sat, danh gia trang thiit bj khai thae khoang san eua Tap doan Cdng nghiep Than- Khoang san Viet Nam". Vien Cd khf Nang lUdng va Mo- TKV.
Ha Ndi. 2008.
2. Bacunbee M.B. M flp. OKcnnyaTaunn KapbepHoro aBTOTpaHcnopra. HsflaienbCTBO Heflpa. MocKsa. 1979.
Ngudi bien tap: Dao Dae Tao
pmg and processing equipment in felial: Minerals Corporation and
\ prpvioi^jrajmSeyaluations and suggestions on i efficiency in tl^e^jroduction.;
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CONG NGHIEP MO SO 5 - 2009
