| CPC B02C 21/026 (2013.01) [B02C 23/02 (2013.01); B02C 23/12 (2013.01)] | 12 Claims |

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1. A mobile bulk material processing apparatus comprising:
a mainframe having endless tracks or wheels arranged to move the apparatus;
a hanging assembly having at least one material processing unit and a carrier frame, the carrier frame being suspended from the mainframe via at least one support structure and including a plurality of support legs, the material processing unit including at least one screen and the hanging assembly further includes a discharge conveyor mounted below the screen;
a plurality of first couplings provided at the support structure and a plurality of complementary second couplings provided at the hanging assembly to releasably engage the first couplings to suspend the hanging assembly at the mainframe;
a plurality of power operated actuators acting on the first and/or second couplings and powered by a motor to move at least one of the first and second couplings relative to one another to provide powered engagement and disengagement between the first and second couplings and arranged to connect and disconnect the hanging assembly from the mainframe, the first and second couplings are configured to automatically couple and decouple from one another by movement controlled by the power operated actuators;
a slewing arm mounted at the support structure, the slewing arm mounting one of the
plurality of first couplings and the hanging assembly includes a recirculation conveyor mounting one of the plurality of second couplings to releasably engage the one first coupling at the slewing arm, the slewing arm moving the recirculation conveyor laterally outward relative to the mainframe and bringing the recirculation conveyor into substantially parallel alignment with the carrier frame to allow the recirculation conveyor to be releasably and mechanically attached to one side of the carrier frame; and
at least one telescopic arm on the hanging assembly mounted to extend from the carrier frame, the at least one telescopic arm including one of the second couplings, wherein the at least one telescopic arm is coupled to a respective power operated actuator to move the second coupling to provide powered engagement and disengagement of the hanging assembly with the mainframe to move the hanging assembly between a first position where the hanging assembly is connected to the mainframe and a second position wherein the hanging assembly is disengaged from the mainframe such that the hanging assembly is a free standing unit supported on the ground by the support legs.
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