The Raise Robot is a remotely controlled robotic assembly used for the spraying of shotcrete in vertical shafts. This machine is designed for the use in raises (1.5 m – 6 m in diameter) and allows for undulations along the interior surface of the raise. An A-frame structure holds the unit above the shaft and is equipped with four cameras and video recording capabilities, allowing the operation technicians to monitor the progress of the Raise Robot and modifying the spraying parameters if necessary.
Operating Principle
The Multicrete Raise Robot® is lowered by means of a heavy-duty incremental winching system. This system allows for variable speeds from 5 cm/minute up to 6 m / minute.
During its descent, the Multicrete Raise Robot® washes (hydro-blasts) the interior surfaces, as well as videotapes the entire raise.
On its return, the unit commences spraying shotcrete in a uniform single pass. The electric motor on the spray head allows for 360° non-stop rotation.
Application of Shotcrete
The Multicrete Raise Robot® is used in conjunction with the Aliva electric powered shotcrete machine mounted on a Multicrete Integral Predampener.
Predampened material is conveyed through 50-65 mm. diameter heavy duty hose for the remote application of shotcrete via the Multicrete Raise Robot®.
At surface level, technicians monitor the progress of the Multicrete Raise Robot® via video display. This allows for the rate of application to be modified without personnel entering the raise.
