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Showing posts from December, 2020

Hydraulic Rotary Union (Hydraulic Piping between Slewing and Non-Slewing Structure)

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I n any Bulk Material Handling Plant, when the raw material enters and leaves the Stock Yard from the same Junction Tower, ARTICULATED TYPE TRIPPER is provided in the Yard Machine. (Articulated type tripper arrangement is one of the 2 types of tripper arrangement used in any Bucket Wheel Stacker Reclaimer machine which is suitable for this layout requirement. The other type of Tripper arrangement suitable for this layout is SCISSORS TYPE TRIPPER. I will be writing an article on Types of Trippers & By-Pass arrangements separately ) In addition to Luffing Cylinders, Articulated Tripper needs one more set of Hydraulic Cylinders for its articulating operation. In a Bucket Wheel Stacker Reclaimer Machine, the luffing cylinders are mounted on the Slewing Structure (Slew Platform) whereas the cylinders for articulated tripper is mounted on the Non-Slewing Structure (Tripper). Hydraulic Piping to be done for both sets of cylinders. For the operation of these two sets of Hydraulic Cylin

Cable Routing methods from Non-Slewing to Slewing Structure

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In Slewing type Yard/Port machines, except Travel Drive all other drives viz., Bucket Wheel, Slew, Luff & Boom Conveyor are mounted on the Slewing structure of the machine, whereas the Electrical House is Mounted on the Non-Slewing structure of the machine. This article is about various Electrical Cable Routing methods from Non-Slewing structure to Slewing Structure of the machine. 1. SWIVEL TABLE Cable from Electrical House is taken to the Slewing Structure through Tripper.  From Tripper (Non-Slewing Structure) to Pylon/Boom (Slewing Structure) by the Swivel Table arrangement. 2. CIRCULAR FESTOON Cable from Electrical House is taken to the Slewing Structure through the Under carriage and then to the Slew structure by means of Circular Festoon arrangement. 3. ENERGY CHAIN Cable from Electrical House is taken to the Slewing Structure through the Tripper by Energy Chain arrangement. Energy Chain arrangement is mounted between the Tripper discharge and the Slew Structure.  4.