Kruse Controls, Inc. can meet all your dredging automation needs. We have supplied PLC-based automation systems on both bucket dredges and cutter-suction dredges. These systems typically have a graphical operator interface to allow an operator to monitor the dredging operation and intercede when necessary. Radio frequency telemetry systems have been used to allow data communication to shore computers, providing production and process information to management personnel.

Kruse Controls, Inc. has provided fully automated controls on single and dual bucket dredges. Trolley and hoist positioning were automated using various feedback sensors such as positioning encoders and torque transducers. Deck processing equipment was also controlled to provide a steady flow of dry material. These systems were provided to achieve maximum production with little operator intervention.

Kruse Controls, Inc. has provided automation systems on cutter-suction dredges as well. Nuclear densitometers provide flow and density feedback to allow ladder swing and pump speed to be automated for maximum production. Pressure transducers allow us to control pump suction. Position transducers on the ladder allow digging depth to be automated.

Dredge positioning has been automated using both winch systems and spud systems. Torque sensing on winches allow dredge movement to be controlled while maintaining proper cable tension. Position sensing on spuds allows the dredge to "walked" in a coordinated fashion.

Kruse Controls, Inc. has setup on-board global positioning systems (GPS) to track dredge position. Integrating the GPS system with the automation system allows us to automatically position the dredge and dig at proper depths without relying on operator memory. This has allowed us to consistently maximize production capacity without exceeding permit restrictions. By automatically updating the survey information, a current bottom profile is maintained.

Whether you need to provide process control assistance to a manned dredge or are looking for complete production automation, talk to Kruse Controls, Inc. for all of your dredging automation solutions.

Project Examples

Automation of a Dual, 18 cubic yard bucket dredge

SUMMARY:
Four on-board programmable logic controllers (PLCs) were used to automate starboard and port dredging operations. A human machine interface (HMI) was used to provide dredge status and to allow manual operation. A global position system (GPS) was interfaced to the HMI to provide dredge position and to prohibit operation outside of permitted areas.

Automation of a Sand and Gravel Cutter/Suction Dredge

SUMMARY:
Automate many of the features found on a cutter/suction dredge. The customer’s goals for a new 100 foot sand and gravel dredge were to improve production efficiency, reduce downtime and automatically create daily reports detailing production, depths and locations dredged.