Đánh giá hiệu quả ứng dụng thiết bị điện tử công suất cho tời trục giếng tại công ty than khe chàm

Thong tin khoa hoc cong nghe m o

' DANH GIA HIEU QUA llNG DUNG THIET Bl BIEN Tl/CONG SUAT

CHO Tdi TRgC GIENG T^l CONG T( THfiN KHE CHfiM- TKV

In the case of deeper and deeper mining activities, the

transportation operation by shaft hoisting winch will become

more and more important. Therefore, the evaluation of the

efficiency in the power consumption as well as the development

of the advanced technical solutions for the hoisting winch have

been considered as an important task and needed to be

significantly paid attention to. The research and application

of the control frequency converter for the shaft hoisting winch

at Khe Cham coal joint stock company have gained many

actual effects which have been considered as a basis for

further its application to other underground coal mining

units belonging to Vinacomin for the energy efficiency

and consen/ation and the increase of the equipment operation

skill

ThS. VO THe NAM

ThS.VOTUANANH

ThS. PHAM THANH L|£M

Vien Khoa hpc Cdng nghi Md - Vinacomin

Bien tip: TS. Lwu Van ThiPC

Tgi eae mo him Id eua nude ta, vgn tai than,

dat da thai qua gilng ehu yeu su dung tdi

truc.Tdi true gieng mo d nude ta vin dang su

dung he thong truyen dpng dien, vdi eong suit

tieu thu dipn Idn, vgn hanh lien tge, tdi true la mpt

trong nh&ng thilt bj tieu thu dipn Idn trong cdc

mo him 16.

Kinh nghi$m cua cde nude tien tiln tren thi

gidi da eho thiy tinh uu vipt eua vipe ap dgng

cho may mo cdc hp thong truyin dpng dipn tien

tien han vdi cdc bO biln doi dipn khong eo cac

phin tu ehuyin dpng. Su dung cac bp biln doi

di#n bdng ban dan cho phep tang he so eong

suit coscp vd toe dp dap ung, giam eong suit

phdn khdng. Biln tin Id mot trong nhung thilt

bj dipn tu edng suit phue vu dieu khien dpng ea

duge phdt triln mgnh me. Dge biet, ngodi kha

nang dieu khiln toe do, tilt kipm dien nang dli

vdi bien tan thong thudng, nhi>ng biln tan toi uu

cdn CO kha ndng ham tai sinh tra nguge nang

lugng v l ludi. Tuy nhien, trong thue t l vipc dp

dgng biln tin vao dieu khien con dang gap

nhilu kho khan do chi phi dau tu eao cung nhu

linh kien dien tu phO-c tgp.

Oe khde phgc nhij-ng tin tgi tren, Vien Khoa

hpe Cdng nghp Mo da de xuit giai phap ung

dgng bien tan co ehi>e nang ham tdi sinh tra

nang lugng v l ludi cho tdi trgc gilng mo him

Id. Giai phdp dd dugc dp dung eho tdi tn,ie JK

2.5 gieng phg +32 Cong ty than Khe Chdm - TKV

vd da mang Igi nhung hipu qua tich cgc.

1. Hi^n trang van hdnh tdi true gieng

Tdi true gilng phu +32 JK 2.5, tai Cong ty

than Khe Cham, trong 1 ea thudng duae SLP

dgng vao hai mgc dieh ehinh; Diu ea va euli ea

dung de keo song loan c_hd ngudi, so lugng

ngudi ti i da la 24 ngudi x 02 song loan. Ngodi

thdi gian chd ngudi, tdi dugc su dung de vgn

chuyin thilt bj, vgt lipu vao 16 vd vgn chuyin dit

da thai ra ngodi, thi tich ti i da chuyen chd Id 2

go6ng, dung tich 3m^. Ljch vgn hanh tdi JK 2.5

tgi gilng phg +32, mo Khe Chdm dugc the hien

trong bang 1.

Tdi JK2,5 su dgng dpng ca co cong suit Idn,

Pdm = 570kW (hinh 1), Id dpng ca khong dong

bp roto day quin, dugc khdi dpng va dilu chinh

toe dp bang cdch thay doi dipn trd ro to (vdi 8

cap dien trd). Dung tdi hogc ham tdi bdng ham

dpng nang cua dpng ca (ham dpng nang vdn

tieu thg dien tu ludi), kit hgp phanh ca khi.

Kit qua do kilm eg thi eong suit tieu thu

dpng ca tdi khi van hanh, tu phuang phap khdi

dpng vd dilu khien toe do nhilu dp , bdng

phuang phap dong cat dien trd phg khi keo tdi

Sang 1. Lich vin hanh tdi JK2 5 trong ca

TT

1

2

3

Vin tai

Cha nguifi

vat lisu

Cha ngu'&l

So chuyen

Nang tai

6

17

6

Ha tai

6

15.

6

Th&i gian 1

chuyen, phut

Nang ta

4,88

3,68

4,88

Ha tai

3,42

3,19

3,42

KHCN.M S6 5/2015* CO DI$N - TiroONG HOA