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OBJECTIVES OF DRAWING DRAGLINE BALANCING
 DIAGRAM IS TO DESIGN THE DRAGLINE
 OPERATING PARAMETERS FOR : -



   OPTIMIMUM DRAGLINE UTILISATION
   MINIMIMUM REHANDLING
    OPTIMUM UTILISATION OF AVAILABLE VOID
FOR SAFE ACCOMODATION OF OB.
   DESIRED COAL EXPOSURE
TOP BENCH

          OB   BOTTOM BENCH




R
I
B
    R
    I
    B
        coal
BOTTOM BENCH


R
I
B
    R
    I
    B
        coal
SIMPLE SIDE CASTING
METHOD –STEP 1 – KEY CUT




                       OB
     R
     I
     B
            R
            I
            B
                     coal
SIMPLE SIDE CASTING
METHOD –STEP 2 – BOX CUT




                      OB
     R
     I
     B
           R
           I
           B
                    coal
SL.   DRAGLIN                             AREA (M2)          UTILISATIO     ANNUAL
                 EXCAVATION   CUT                     DUMP
NO.   E                                    (SOLID)               N        PRODUCTIVITY
                 FIRST DIG    ABCGDA        1910
 1    24M3/88R                                               OPQRSUGO         100%
                 REHANDLING   DEFGD+10%      485
 2                                          1990

      COAL EXPOSER = 3.11
      1990 x 15x60x1.47x 0.9 =1.94 M.T.es
SL. DRAGLIN    EXCAVATION       CUT          AREA      DUMP         UTILISATIO   ANNUAL
NO. E                                        (M2)                   N            PRODUCTIVITY
                                             (SOLID)

1   15M3/83R P I-TOP DIG        ABCDA        1120      MHIJKM       100%         2.08 M. Cum
             P II-KEYCUT        EFGE         325       NMEQN

2   24M3/88R        FIRST DIG HGFIH          1915      WXYPQRSTUV   100%         2.76 M. Cum
               P I-           OHILPO+10      655       W                         1.04 M. Cum
                              %
               REHANDLING

3                    2.76
    COAL EXPOSER = ---------- x80x16.5x1.52x0.90 = 2.60 M. Te
                     1915
Sl.   DRAGLINE   EXCAVATION         CUT            AREA (M2)   DUMP         UTILISATION   ANNUAL
No.                                                (SOLID)                                PRODUCTIVITY


1     20M3/83R   P I-TOP            ABCDA          815         ALMNA        100 %         3.37 M. Cum.
                 CHOPPING           DEFGD          975         NMSQTOPN
                 P II KEY CUT
2     24M3/88R   FIRST DIG          GFJJ’AG        1355        WVUTQRXYZW   100%          2.54 M. Cum.
                 P I-REHANDLING     AJ’OPA+10      615                                    1.27 M. Cum.
                                    %
3                 = 2.54 x 80x16x1.48x0.90 = 3.20 Mt                        THROW BLAST = 0.17 M Cum
                    975

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Dlbal

  • 1.
  • 2.
  • 3. OBJECTIVES OF DRAWING DRAGLINE BALANCING DIAGRAM IS TO DESIGN THE DRAGLINE OPERATING PARAMETERS FOR : -  OPTIMIMUM DRAGLINE UTILISATION  MINIMIMUM REHANDLING  OPTIMUM UTILISATION OF AVAILABLE VOID FOR SAFE ACCOMODATION OF OB.  DESIRED COAL EXPOSURE
  • 4. TOP BENCH OB BOTTOM BENCH R I B R I B coal
  • 5.
  • 6.
  • 7. BOTTOM BENCH R I B R I B coal
  • 8. SIMPLE SIDE CASTING METHOD –STEP 1 – KEY CUT OB R I B R I B coal
  • 9. SIMPLE SIDE CASTING METHOD –STEP 2 – BOX CUT OB R I B R I B coal
  • 10.
  • 11. SL. DRAGLIN AREA (M2) UTILISATIO ANNUAL EXCAVATION CUT DUMP NO. E (SOLID) N PRODUCTIVITY FIRST DIG ABCGDA 1910 1 24M3/88R OPQRSUGO 100% REHANDLING DEFGD+10% 485 2 1990 COAL EXPOSER = 3.11 1990 x 15x60x1.47x 0.9 =1.94 M.T.es
  • 12. SL. DRAGLIN EXCAVATION CUT AREA DUMP UTILISATIO ANNUAL NO. E (M2) N PRODUCTIVITY (SOLID) 1 15M3/83R P I-TOP DIG ABCDA 1120 MHIJKM 100% 2.08 M. Cum P II-KEYCUT EFGE 325 NMEQN 2 24M3/88R FIRST DIG HGFIH 1915 WXYPQRSTUV 100% 2.76 M. Cum P I- OHILPO+10 655 W 1.04 M. Cum % REHANDLING 3 2.76 COAL EXPOSER = ---------- x80x16.5x1.52x0.90 = 2.60 M. Te 1915
  • 13. Sl. DRAGLINE EXCAVATION CUT AREA (M2) DUMP UTILISATION ANNUAL No. (SOLID) PRODUCTIVITY 1 20M3/83R P I-TOP ABCDA 815 ALMNA 100 % 3.37 M. Cum. CHOPPING DEFGD 975 NMSQTOPN P II KEY CUT 2 24M3/88R FIRST DIG GFJJ’AG 1355 WVUTQRXYZW 100% 2.54 M. Cum. P I-REHANDLING AJ’OPA+10 615 1.27 M. Cum. % 3 = 2.54 x 80x16x1.48x0.90 = 3.20 Mt THROW BLAST = 0.17 M Cum 975