NATIONAL ALUMINIUM COMPANY LIMITED - Rites

8.2 CODES & STANDARDS
The design, manufacture, inspection and testing of Side Arm Charger shall comply with all
the currently applicable statutes, regulations and safety codes in the locality where the
equipment is to be installed and all nor norms stipulated by RDSO- G 33 Rev.1. The Side Arm
Charger shall conform to the latest edition of the standards and codes. Other internationally
acceptable standards/codes, which ensure equal or higher performance than those
specified, shall also be accepted. Nothing in this specification shall be construed to relieve
the contractor of the required statutory responsibility. In case of any conflict in the standard
and this specification, the decision of the Engineer shall be final and binding.
8.3 DESIGN REQUIREMENT
8.3.1 A single module of side arm charger shall be used for inhaul and outhaul operations. Thus,
side arm charger shall be used for indexing forward the rake of 60 nos loaded wagons,
placing decoupled wagons on the tippler table and out hauli hauling ng the empty wagons.
8.3.2 The rake of 60 loaded wagons will be brought by locomotive and placed on the retipping
line such that the leading wagon will be within the reach of the side arm charger. Now the
side arm charger will be coupled to the leading wwagon,
agon, pull the rake of 60 nos. loaded
wagons towards tippler table. The first wagon will be decoupled manually from the rake and
signal will be given to the side arm charger operator that the wagon is de de-coupled. Now the
leading wagon will be placed centra centrally lly onto the tippler table by side arm charger,
(simultaneously ejecting the empty wagon from the tippler table). After the loaded wagon is
placed on the tippler table, the arm is de de-coupled coupled from the loaded wagon. Adequate
clearance between tippler table aand
nd empty wagon shall be ensured. The side arm charger
will stop at the end of its strokes, the arm will be swung vertically vertically-up up and the machine will
move towards in-haul haul direction and occupies the initial position. In the meantime, the
tippler will tip the loaded wagon placed on the tippler table and return to its original
position. Before tippling operation of wagon tippler is completed, the arm of the side arm
charger will be swung to horizontal position and will be coupled to the rake of remaining
loaded wagons at waiting position just before the tippler table and is now ready for the next
cycle to start. After the tippling operation of wagon tippler is completed the cycle will be
repeated.
8.4 TECHNICAL REQUIREMENTS
8.4.0 CONSTRUCTION REQUIREMENT
8.4.1 The Side Arm Charger shall be suitable to handle handle60 number of loaded wagons wagons. The pusher
arm shall be vertically rotatable arm mounted on a carriage running back and forth parallel
to the train track.
8.4.2 The arm shall be raised to clear the movement of wwagons
agons and locomotives during reversing
back of positioner carriage and shall be lowered for engaging the head of the arm with the
wagon coupler for index strokes.
Technical Specification:Sec-4,System System Parameters, Operation & Control Philosophy
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