Pulley Details

LARSEN & TOUBRO LIMITED ECC Division – EDRC PROJECT :DHAMRA CHANDBOLI EXPANSION PROJECT TITLE : OPERATION & MAINTENANCE MANUAL

OF COAL CONVEYING SYSTEM

DOCUMENT NO

DATE

L&T

30.10.09

- O6115M-PT-CS-MS-0050

DESIGNED SDGP

CHECKED JD

SHEET

44 of 127

Pulley Mark x Qty. (Nos.)

ND11X1

-

-

-

Tripper Discharge Pulley Pulley Mark x Qty. (Nos.)

-

-

-

-

Tripper Bend Pulley Pulley Mark x Qty. (Nos.)

-

-

-

-

Deflector Roller Roller Mark x Qty. (Nos.)

DRx1

-

-

-

Hold Down Roller Pulley Mark x Qty. (Nos.)

-

-

-

-

Tripper Bend Pulley (Slack Side) Pulley Mark x Qty. (Nos.)

-

-

-

-

b) Pulley Dimension Pulley Mark No. D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 ND1 ND2 ND3 ND4 ND5 ND6

O/D (W/O Lagging) 630 1000 800 1000 1000 630 1000 1000 800 1000 630 1250 500 500 630 800 800 800 630

:

Given as below : Brg. CRS. 2150 2150 2150 2400 2400 2400 2400 3000 3000 3000 2800 2800 3000 2050 2050 2050 2250 2250 2250

Shaft dia at Brgs. 125 200 160 340 220 200 320 300 200 320 180 320 125 115 125 140 220 160 180

Shaft dia at centre 175 225 200 358 245 245 338 318 250 338 220 338 165 155 165 185 250 205 220

LARSEN & TOUBRO LIMITED ECC Division – EDRC PROJECT :DHAMRA CHANDBOLI EXPANSION PROJECT TITLE : OPERATION & MAINTENANCE MANUAL

OF COAL CONVEYING SYSTEM

DOCUMENT NO

DATE

L&T

30.10.09

- O6115M-PT-CS-MS-0050

DESIGNED SDGP

CHECKED JD

SHEET

45 of 127

ND7 500 2250 180 220 ND8 800 2850 200 245 ND9 630 2850 180 230 ND10 500 2850 140 185 ND11 500 2600 140 185 ND12 1000 2600 180 220 ND13 800 2600 180 220 ND14 1000 2400 320 345 ND15 800 3000 300 325 ND16 500 2400 115 145 DR1 273 2050 70 100 DR2 273 2250 125 160 DR3 273 2850 125 155 DR4 273 2600 90 130 For further detail refer L&T Drg. no. – O6115-M BM-CS-VR-501(2Sheets) & 502 4.0.

Shell Thickness

:

14mm for DR1. 16 mm for pulley mark D1, D13, ND1, ND2,ND3,ND5,ND10,ND11, ND16. 24 mm for pulley mark D2,D5,D6,ND6,DR2. 18 mm for pulley mark D3, D11, ND7,ND12,ND13,DR3,DR4. 20mm for D9,ND8,ND9. 22mm for ND4.26mm for D8,30mm for D10,ND15. 32mm for D12,ND14. 34mm for D7,38mm for D4

4.0

Pulley face width

:

1600 mm for 1400 mm 1800 mm for 1600 mm 2200 mm for 2000 mm 2400 mm for 2200 mm

5.0

Lagging thickness & material

:

The drive pulley with 12 mm thk diamond groove & the non-drive pulley with 10 mm thk plain. Hot lagged with vulcanized natural rubber as per IS : 4682-1994 part -1

6.0

Material of construction Shell Shaft Hub

: : : :

Diaphragm

:

belt width belt width belt width belt width

Fe4 10W B IS:2062-1999/SS 304 45C8(N) IS:1570,part-II,1979 Class 2(20 C8),IS:2004-1991/cast steel GR. 230450W IS:-1998(expect D4,D7,D8,D10,D12) Fe4 10W B IS:2062-1999/SS 304