Epiroc Rock Drills Aktiebolag

Lennart Gürlet Häggström

Jan Olsson

Martin Ekefalk

Viktor Bergqvist

Johan Engblom

A method for ensuring the quality of a multi-component mixture in a system for rock reinforcement is described herein. The system comprises a first and a second channel for a respective first and second component intended for injection in a rock hole. The respective channel comprises a pump and a container intended for the respective component. The method comprises the steps of pumping of the respective component from the respective container through the respective channel and continuously comparing the flow of the first component in the first channel with the flow of the second component in the second channel. The method further comprises the step of controlling the pumps individually, based on the comparison of the flows, in such a way that a deviation from a pre-defined volume ratio between the first component and the second component in the mixture is below a pre-defined first threshold.

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Vintrosa, Sweden

Lennart Gürlet Häggström