After being mined, mills use small steel balls to grind ore smaller for further processing and to load and unload these steel balls, a kibble system is used. This provides a safe and easier way to charge mill chutes or inlets.
In consultation with our client, we design a kibble system to ensure it is suitable for the application and in accordance with Australian Standards. The kibble is analysed with finite element analysis to check the stresses and deflections so that the design can be strengthened for a long work life.
An example of a stress plot can be seen below:
Kibble model and stress analysis
Below are some photos of the fabricated kibble being used on site. First the kibble is being charged with mill balls. Its size and design make filling the kibble an easy task.
Kibble being charged
Then it is moved into position and the balls are discharged into the system:
Kibble discharge system in use
We take into account mine site structural constraints to find the best solution for moving the kibble in place and utilise existing equipment where possible. Contact us to discuss your specific mine site requirements.