By PM TATA CONSULTING ENGINEERS Project:

Date Doc No.

Chd UB Client: TATAPOWER LTD Subject:

Date Job No. TCE. Office: Dep : Sht 3 of 5 Rev No. P0

STOCKPILE CAPACITY CALCULATION(USING S/R) SHEET - 2

DESCRIPTION UNIT VALUES REMARKS

1 INPUTS

1.1 MCR of coal/unit. TPH 425

1.2 Number of units NO. 3

1.3 Number of stockpiles. NO. 2

1.4 Number of days of coal stockpile required. DAYS 11

1.5 Bulk density of coal . T/CU.M 0.8

1.6 Angle of repose of coal. DEGS. 37

1.7 Width of stockpile (At base). M 50

1.8 Height of stockpile M 10

1.9 Boom length of stacker-reclaimer M 41

1.10 Distance between centreline of S/R to edge of stockpile. M 5

1.11 Plant load factor 0.85

1.12 No. of days of live storage required DAYS 10

2 CALCULATIONS

2.1 Total coal storage (1.1x 24 Hrs x 1.4 x 1.2 x 1.11) Tonnes 286110

2.2 Coal storage per stockpile (2.1/1.3) Tonnes 143055

2.3 Volume occupied per stockpile.(2.2/1.5) CU.M 178819

2.4 Area of cross section. (0.5 x (1.7-2(1.8/tan 1.6)+1.7) x 1.8 SQ.M 367

2.5 Volume of End pile((1.8/tan 1.6) x 1.8 x (1.7-2(1.8/tan 1.6)) CU.M 4957

+ 1/3 x pi x (1.8/tan1.6)^2 x1.8)

2.6 Effective volume for calculating length of stockpile.(2.3-2.5) CU.M 173861

2.7 Base width of dead stockpile (1.7 - (1.9 - 1.10)) M 14

2.8 Area of live stockpile.(2.4 - (1/2x2.7x(2.7/2xtan1.6))) SQ.M 330

2.9 Total live volume available in the stockpile (2.5/2+ (2.7 x 3.1 x 1.3 )) CU.M 315245

3 OUTPUT

3.1 Length of each stockpile(excluding end pile length) (2.6 / 2.4) M 473

3.2 Length of each stockpile(including end pile length) M 500

(2 x (1.8/tan 1.6)+3.1)

3.3 No. of days of live storage available. (2.9/ (1.11 x 1.1 x 1.2 x 24 Hrs.) DAYS 10

3.4 Travel length of S/R (3.2) M 500

3.5 Total rail length (3.4 + 150m) M 650

MAITHON PASE II DPR

TCE.XXXX-563-CALC-003

Stock Pile Capacity Selection

SL NO

Centreline of stacker reclaimer

5

Cross section of stockpile Live

stockpile

Dead stockpile

41 14

23.46

36

50

10