Machine Type

Luffing Coordinate Stacker

Facility

Goedgevonden Colliery (GGV) Republic of South Africa

Capacity

1 x 1,600tph and 1 x 2,200tph Stackers onto 250,000 tonne stock pile

Machine Name

GGV Primary and GGV Secondary

Material

Coal

Description

Luffing boom, long travelling with offset yard conveyors and tripper on shared rails

Commissioned

2009

Client

Xstrata Coal South Africa

PROJECT SUMMARY

The development of a new coal mine was undertaken by Xstrata Coal South Africa in Alliance with ARM Coal. A critical component in the daily operation of the coal preparation plant are two stackers for two grades of product, export coking coal and domestic thermal coal. Christof and Helmut were instrumental in the completion of a design, supply and construct contract. The machines’ design focused on an existing, well performing design at Xstrata’s Mt Owen Mine in the Hunter Valley of NSW, Australia, previously prepared by Christof and Helmut.

PROJECT INCLUDED

  • Full structural and mechanical detailing in the form of detailed assemblies, including equipment designations and material lists.
  • Mechanical analysis of stacker components for stress and serviceability to AS4324.1.
  • Structural Analysis of stacker structure for stress and buckling to AS4324.1.
  • Fatigue Analysis: Evaluation of structural stresses for nominal fatigue life capacity as indicated in AS4324.1 and AS4100.
  • Evaluating Machine structural stresses to AS4324.1 for strength and buckling capacity.
  • Complete EPCM supply, construct, commission, our operations in RSA were used to complete the turnkey supply contract using the best of local talent and international products.
  • Pre-commissioning Audit of the stacker (mechanical and structural components) to AS4324.1.