Technical data

CHAP-03 BRIEF SYSTEM DESCRIPTION Page 3 of 20
 Connecting conveyor for new silos & new crushers to the existing Coal
Handling Plant.
 4 nos. split gates for coal handling plant on conveyors Y7-36, Y11-130,
Y7-13 and Y11-134.
Flow diagram drawing no. MEC/S/9101/11/17/55/01/064.12/R0 (Sheet 1
of 2 & Sheet 2 of 2) and layout drawing no.
MEC/S/9101/11/17/55/01/064.13/R0 showing the tentative location of
proposed unit are enclosed for reference.
New conveyor Y11-125 will take feed from existing conveyor Y7-49 in
the existing junction house 2C and feed conveyor Y11-126 with a
traveling tripper to feed the individual silos (5 nos. new). Each silo will be
of 500 tonne effective storage capacity. The vertical portion at a height
of 1m and conical portion (slope 60°) shall be lined with 409M 8mm thick
SS liner plate.
Each silo will be provided with identical Belt Weigh Feeder with PLC
being provided in existing SILOS.
Silos shall be provided with pneumatic blow down facility. Bunker
discharge mouth level shall be +10.2m and shall have floor at +6.2m
level for laying conveyor Y11-127.
Belt weigh feeders will feed the coal to proposed conveyor Y11-127 and
through conveyor Y11-128, the coal will be fed to existing conveyor Y7-
35, which also carries coal from existing 2
nd
row of similar bunkers. The
rated capacity of conveyor Y7-35 shall be 600t/hr. Conveyor Y7-35 will
feed to modified conveyor Y7-36. The modification & strengthening of
these conveyors are in the scope of contractor. Apart from replacing
existing one way chute with split gate, conveyor Y7-36 shall be modified
for accommodating split gate and upgraded to 600 tph.
Modified conveyor Y7-36 will feed the coal to existing conveyor Y7-51 &
new conveyor Y11-129 through a bifurcated chute & split gate. Coal
from conveyor Y11-129 will be fed to the new hammer mill nos. 7 & 8
through conveyors Y11-130 & bifurcated chute with split gate.
The existing final crushing building shall be extended suitably to
accommodate new hammer mills (No. 7 & 8) and related items &
electrics. The building shall be of RCC upto top floor with structural
roofing. Each hammer mill shall have independent foundation.
In order to collect crushed product from the new hammer mills, the
existing conveyor Y7-12 will be extended at the tail end adequately & it’s
capacity shall be upgraded to 1000 t/h rated capacity. The existing
conveyor Y7-13 will also be upgraded to 1000 t/h rated capacity and will
be provided with a bifurcated chute with split gate to enable feeding of