INNOVATION INTELLIGENCE spring nest type braking system , the new Winder Controls project specification included a disc brake configuration on both drums with the brake torque being controlled by a four-channel ESCORT brake-control system . Each drum was fitted with one brake disc and required two brake stands , utilising SIEMAG ’ s own BE200 disc brake callipers . In total 16 BE200 callipers were required for the winder , generating a brake force of approximately 2.3 MN . In order to minimise modifications to the existing winder foundations Winder Controls engineered the brake stands such that , by means of custom designed supporting steelwork , the new braking system could be constructed on the brake anchor pivots of the original machine .
Logistics and implementation
Pre-planning of site work details and logistics for the accelerated shutdown period was essential to ensuring that all targets were met . This involved transporting the drum sections , drum shaft and other large components underground and storing them such that during the dismantling process the original large components could be removed from the winder chamber , moved past the new components and the new components moved in without causing congestion in the haulage ways and working areas .
A primary concern for the mine was the movement of large mechanical components
A 3D spatial scan of the haulage way
from surface to the underground winder chamber . This included the drum shaft with a length of 8.5 m and a mass of 36 t as well as the larger drum segments , each with dimensions of 6.2 m x 3.1 m x 1.3 m and a mass of 19 t ( each drum was designed and constructed with a vertical and a horizontal split resulting in four sections per drum for ease of transport underground ).
Underground logistical solutions
In addition to the winder supply scope Winder Controls was contracted to assist with the logistical process by carrying out a study which included a detailed 3-dimensional spatial scan of the full underground route in order to accurately locate all obstructions , corner details etc . Three dimensional computer
models of the components were then overlaid on the post-processed scan data to provide a moving simulation of the full transport process . Using this information Winder Controls was able to design and manufacture customised transport cars and slinging equipment for slinging the equipment down the mine shaft as well as for underground transport using the existing rails in the haulage ways . A journey of approximately 300 m was required to move the components from the underground shaft station to the winder chamber and the scan study and customised equipment allowed the drum sections and drum shaft to pass through the restricted space available without necessitating the removal of services such as ventilation piping , water piping and cable racking . IM
5
th Latin American Congress on Desalination and Water Reuse
October 5 ~ 7
Hotel Sheraton , Santiago , Chile
Special discounts for companies
Register on gecamin . com / desal
AREAS OF INTEREST
Design and construction of desalination plants • Operation and maintenance • Development of water projects in the public sector • Energy for desalination • Reuse of effluents and wastewater • Treatment of effluents • Environmental aspects of desalination • New desalination technologies • Marine works • Long distance and high altitude water transport systems
EXECUTIVE COMMITTEE
president of the organizing committee José Joaquín Muñoz Director , Seven Seas Water , Chile
technical coordinator Raymond Philippe Business Development Manager and Water Sector Lead , MWH Global , Chile
adjunct technical coordinator Andreína García Researcher , Advanced Mining Technology Center , Universidad de Chile
ORGANIZERS INSTITUTIONAL PARTNERS
MINNOVEX
P r o v e e d o r e s d e C l a s e M u n d i a l
SEPTEMBER 2016 | International Mining 155