When discussing the possibility of replacing only one piece of the liner, the objective should be first to restore temporary movement, maintain equipment stability, improve the integrity of the discharge or extend the life of the vehicle. Back-loading areas are clearly worn faster than the front, often with multiple targets, while new and old plates form steps and new stress concentrations, usually the first vulnerable. Quantifying the problem would avoid the use of temporary products as a panacea.
When establishing the input list, the hardness of the ore, the maximum size, the difference in the load, the temperature, the size of the car, the distribution of wear and tear and the end of life should be placed in the same table, with an indication of the data source and date. In the case of new and old plates, which would result in steps and a new concentration of stress, the recommended treatment direction would be to decide on the replacement of the partitions after assessing the direction of the collage, the remaining life and the fixed system. The specifications, size spread, temperature range, connection and test conditions of the slabs are then compared; if the support base or test method of the two suppliers is different, the nominal data cannot be arranged in a simple horizontal manner.
Figure: The rear discharge area is clearly worn faster than the front
If on-site space is restricted, progress cannot be moved by reducing the necessary coverage or moving points to the edge. Transportation organization, equipment stationing or installation should be re-checked to allow sufficient implementation space for the replacement of the partition after assessment of the stitching direction, residual life and fixed systems. The lining is both a waste material and part of the protection system of the car ' s structure. The first round of operations is reviewed immediately after completion, and early relaxation or relocation is usually easier to correct than long-term damage.
Maintainers need to know how normal traces of products differ from dangerous injuries. It would be more effective to create on-site illustrations of residual thickness, hardware, arctic edges, cracks and grass-roots corrosions, rather than simply to write “observed inspection”. If the new and old plate thickness results in a step and a new concentration of stress increases with the number of times used, it should be analysed whether the payload, foundation or material exceeds the original conditions and, pending confirmation, a limit, speed limit or suspension measure.
In order to validate the programme, a representative route, a vehicle or a support point could be selected for a controlled trial, with observation cycles and exit conditions. The records should cover normal and most unfavourable work situations, with particular attention to the new and old sheets that form steps and new stress concentrations. Only when the test data are stable, the maintenance workload is acceptable and confirmed by project management and security personnel will it be appropriate to expand the application.
Finally, this paper provides a selection and management approach, with no alternatives to equipment specifications, special programmes, geological evaluations and local regulations. Work involving lifting support, ramps, ditches, vehicle lifts or personnel entering the carriage shall be reviewed and quarantine, locking and emergency procedures carried out by suitably qualified personnel. The above data may be submitted at the request for quotations to obtain recommendations on size, thickness, quantity and shipment.
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