Conveyor Belt Services

As well as being able to provide the services outlined below, we can provide the following;

  • Assistance with design of Cable Hauled conveyor systems
  • Trouble-shooting, problem identification and solution management
  • Sourcing of all mechanical, electrical and miscellaneous components
  • Change-out, inspections and maintenance of drive cables

Engineering Audits

Objective

To check on current condition of the various components in a Cable Hauled conveyor System and to identify areas that require immediate and future attention. Where required, specific and detailed recommendations are provided for a performance upgrade and optimisation of the conveyor. The client is provided with a comprehensive audit report.

Generally, the following areas of the conveyor are covered

  • Drive Unit
  • Belting - top cover thickness and deflection under load measurements
  • Linestand Equipment - linestands, pulleys, rockers, cross-tubes, bridges
  • Belt and rope tension areas
  • Conveyor loading point
  • Head Discharge
  • Conveyor drive ropes and deflection sheaves
  • Conveyor modelling where required
  • Recommendations for conveyor upgrade - carrying capacity, speed increase etc
  • Recommendations for preventative maintenance programme

List of Sites where engineering audits have been conducted by JLV

  • Zambia Consolidated Copper Mines (now Roan Antelope Mining Corporation)
  • Line Creek, Canada
  • Philex Corporation, Philippines (in conjunction with PrinceAce)
  • CVG Bauxilum, Venezuela
  • Alpart, Jamaica
  • National Aluminium Company, India

Onsite Deflection Monitoring

Transverse stiffness is a very important property of cable hauled conveyor belts. The load carrying capacity is directly related to the degree of troughing, which is determined by the deflection of the belt under load, in combination with any pre-toughing that may have been built into the belt during manufacture.

Deviations in the belt stiffness value enable weak areas (ie. soft spots) to be easily identified. Analysis of changes in the resulting "footprint" over time provides a means of predicting the behaviour of the belts and planning a suitable replacement programme. A well-planned replacement programme enables the maximum service life to be obtained from the belts, while removing the belts or belt sections at the appropriate time to avoid operational problems.

Equipment in Operation

Onsite Deflection Monitoring

Onsite Deflection Monitoring

Computer Software used to record Deflection

Onsite Deflection Monitoring

Graphed results for Data Analysis

Onsite Deflection Monitoring

  • JLV Engineers are fully equipped to carry out belt deflection monitoring on-site with minimal operational interruptions.
  • A comprehensive report with detailed recommendations on suspect belt and replacement will be provided.
  • Alternatively, JLV can also supply, install and commission belt deflection measurement equipment designed for specific sites. Full training will be provided to client personnel.

Belt thickness measurements

Objectives

  • To determine top cover wear rates of cable hauled belts currently in use.
  • To formulate an effective belt replacement / refurbishment programme based on established wear rates.
  • It is essential that this exercise is complemented by visual inspection of belts for abnormal wear or damage due to dislodgements, high impacts, scraper and / or skirt wear.

Measuring top cover thickness using an Ultrasonic Tester

Belt thickness measurements

Graphed results for Data Analysis

Belt thickness measurements

Analysis of data Includes

  • Calculate wear rate per tonne.
  • Predict average life of belts subject to normal wear.
  • Planned removal of belt for replacement or refurbishment.