Technical data

CHAP-03 BRIEF SYSTEM DESCRIPTION Page 5 of 20
Each junction house shall be provided with Electric hoist. The Capacities
of EOT Cranes / Electric Hoists for maintenance shall be at least 1.2
times the heaviest load – or – the Capacity & approximate height of
some Junction houses are indicated as below:
Silo top - 3t cap - 37m lift - 1no.
Jn. House 11E - 2t cap - 24m lift - 1no.
Final crushing station - 10t cap - 10m lift - 2nos.
New JH No.11A - 2t cap - 30m lift - 1no.
New JH No.11B - 3t cap - 45m lift - 1no.
Top of coal tower no.7 - 3t cap - 50m lift - 1no.
03.03 DESCRIPTION OF PROPOSED COKE SORTING PLANT FOR
COB#11
03.03.01 Design Limits
Following design limits are to be considered for the proposed Coke
Sorting Plant (CSP-4)
a) From & including surge hopper in the junction house no.1. Junction
house no.1 is included in the scope of the contractor.
b) Upto & including junction house no. Z17 and upto & including discharge
chutes of conveyors K11-21 & K11-22.
c) Including upgradation of existing conveyor no. KD-1, modification of
gallery of KD-1 is included in the scope of the Contractor.
d) For coke breeze from the proposed conveyor KA-3 to the coke breeze
bunkers & C3A-C2 with two way Diverter gate at Junction house JH-
C3A. Nut coke from CSP coke breeze bunkers shall be disposed off by
wagons and conveyor C3A-C2, for any exigency 100% disposal facilities
by wagon will be provided.
e) The discharge chute with pneumatically operated sector gate for coke
car track from surge hopper in JH – 1 is in the scope of contractor.
f) 3 nos. bin vibrators shall be considered for each bunker; hence, total no.
of vibrators for coke sorting plant shall be 6.
03.03.02 Brief Description
A coke sorting plant of 300t/h capacity has been envisaged for the plant.
The coke sorting plant will sort out the coke into three fractions i.e. 30-60
mm, 60-80mm & (-) 30mm. The coke will pass through a series of
screens and coke cutters for this purpose. Flow diagram, layout,
sections etc. are shown in drgs. MEC/S/9101/11/17/55/01/064.01 to
064.08.
The (-) 30mm fraction will be sent and stored in the 150t capacity RCC
bunkers, after screening at 15mm. The other coke fractions will be sent
through conveyors to Blast furnace stock house. In addition to the
above, an open mechanized emergency coke storage yard of about
2500t capacity will be provided. Required conveyor streams, traveling