At the end of 2007, ThyssenKrupp Fördertechnik Business Unit Materials Handling (TKF) received an order to design and deliver a new type of barge unloader for the Bontang Coal Terminal (upgrade stage 2). The CBU will put in operation in Spring of this year.
The continuous barge unloader (CBU) will handle coal and is designed to unload barges ranging from 7000 to 10,000 t. The nominal unloading rate of coal will be 4100 tph, operating for a continuous period of 18 hours/day, 330 days/year.
The 620 t machine consists of the portal structure with the travel gear and the travel trolley, where the movable boom with the integrated double strand bucket elevator is mounted. The lifting and lowering will be realised by a rope winch system on top of the travel trolley. Similar existing and successfully running TKF ship unloaders, this CBU is equipped with hydraulic and electric components. Repair and maintenance installations as well as lubrication and dust suppression system are integrated and of course safety and protecting equipment are installed.
Control of unloading is done from the operator’s cabin or from the pier by remote control. Digging depth, speed of the machine and traversing is controlled automatically to achieve the required capacity. Further, the continuous barge unloader has a semi-automatic mode to enable easy manual positioning and operating.
While reclaiming in the longitudinal direction of the barge, the bucket elevators can traverse from the one side of the barge’s hold to the other. The material reclaimed by the bucket elevator passes the portal belt conveyor and the roller table via chute system and reaches the pier belt conveyor for further transport.
To unload residual material, a slewing crane is mounted for the use of a front loader, which can be lowered into the barge’s hold to feed the bucket elevator by pushing together the material from the barge's bottom and the corners.
Read the article online at: https://www.worldcoal.com/coal/01022010/new_type_of_barge_unloader_to_start_operation/