The invention discloses a multi-bar linkage mechanism based conveyor, comprising a gantry system, a multi-bar linkage mechanism based conveyor boom, a boom support, a two-drum winch, a roller unit and an automatic control system. The gantry system, the two-drum winch and the boom support are mounted on a deck of a hull. The conveyor boom is formed of multi-bar linkage mechanisms, the movement of which can be changed. Rollers are mounted on the conveyor boom. The rear segment of the conveyor boom is articulated with the boom support. The two-drum winch is connected to the multi-bar linkage mechanism based conveyor boom via a steel wire rope and by a set of gantry pulleys. A hydraulic device and a control device are arranged between adjacent multi-bar linkage mechanisms. A tension sensor is arranged at an end of the steel wire rope. The whole conveyor is controlled by the automatic control system.

The present invention discloses a method for operating a multi-bar linkage mechanism based conveyor. Stretching the mechanism based conveyor comprises: an automatic control system is started to control a first two-drum winch, a second two-drum winch, and hydraulic cylinders in a multi-bar linkage mechanism based conveyor boom to operate together until the mechanism enters an operating state, and the first two-drum winch, the second two-drum winch, and the hydraulic cylinders in the multi-bar linkage mechanism based conveyor boom stop operating. Then, the angle of the multi-bar linkage mechanism based conveyor boom can be adjusted by controlling the operation of the second two-drum winch. Retracting the mechanism based conveyor comprises: the automatic control system is started to control the first two-drum winch, the second two-drum winch, and the hydraulic cylinders in the multi-bar linkage mechanism based conveyor boom to operate together until the mechanism enters a non-operating state.

A loading arm device, serving in particular for loading fluids, including a main arm supported by a base station. An external arm is pivotally connected with the main arm. Further, the rear part of the main arm is connected with a counter-weight arm. A coupling element guarantees that at different swivel positions, the counter-weight arm is arranged parallel to the external arm. Further, switching elements are provided to trigger a switching operation at a maximum scissors angle between the main arm and the external arm. One of the switching elements is fixedly connected with the counter-weight arm or the external arm, and the other switching element is rotatably connected with the main arm.

A telescopic conveyor includes a conveyor boom having two or more conveyor sections adapted to be extended and retracted with respect to one another in telescopic fashion to adjust the length of the boom, wherein the two or more conveyor sections are each curved about a common axis of curvature.

A control system for a quay crane a mounting platform position acquisition device, a land-side position acquisition device, a transportation vehicle position acquisition device, and a control device. The control system 30 is configured such that, when the control device predicts that a standby time will occur for a land-side cargo handling device based on a vehicle stop position, a current position of a relay mounting platform, a current position of the land-side cargo handling device, and a current position of an in-terminal transportation vehicle, the control device performs control that moves the relay mounting platform to a relay position which equalizes an actual land-side cycle time for the land-side cargo handling device including the standby time and a sea-side cycle time for a sea-side cargo handling device with each other.

Fluid transfer systems and processes for using same. In some embodiments, the system can include a mooring structure, a fluid swivel disposed on the mooring structure, and first and second subsea conduits configured to provide fluid communication between first and second pipelines and first and second flow paths defined by the swivel, respectively. The system can also include first and second surface conduits that can provide fluid communication between a vessel storage tank and the first and second flow paths defined by the swivel, respectively. The system can also include a crossover conduit configured to provide fluid communication between (i) the first and second surface conduits, (ii) the first and second subsea conduits, or (iii) the first subsea conduit and an optional third pipeline. The system can transfer a fluid having a boiling point that is less than an ambient temperature at atmospheric pressure to or from the storage tank.

The invention discloses a multi-bar linkage mechanism based conveyor, comprising a gantry system, a multi-bar linkage mechanism based conveyor boom, a boom support, a two-drum winch, a roller unit and an automatic control system. The gantry system, the two-drum winch and the boom support are mounted on a deck of a hull. The conveyor boom is formed of multi-bar linkage mechanisms, the movement of which can be changed. Rollers are mounted on the conveyor boom. The rear segment of the conveyor boom is articulated with the boom support. The two-drum winch is connected to the multi-bar linkage mechanism based conveyor boom via a steel wire rope and by a set of gantry pulleys. A hydraulic device and a control device are arranged between adjacent multi-bar linkage mechanisms. A tension sensor is arranged at an end of the steel wire rope. The whole conveyor is controlled by the automatic control system.

The present invention discloses a method for operating a multi-bar linkage mechanism based conveyor. Stretching the mechanism based conveyor comprises: an automatic control system is started to control a first two-drum winch, a second two-drum winch, and hydraulic cylinders in a multi-bar linkage mechanism based conveyor boom to operate together until the mechanism enters an operating state, and the first two-drum winch, the second two-drum winch, and the hydraulic cylinders in the multi-bar linkage mechanism based conveyor boom stop operating. Then, the angle of the multi-bar linkage mechanism based conveyor boom can be adjusted by controlling the operation of the second two-drum winch. Retracting the mechanism based conveyor comprises: the automatic control system is started to control the first two-drum winch, the second two-drum winch, and the hydraulic cylinders in the multi-bar linkage mechanism based conveyor boom to operate together until the mechanism enters a non-operating state.

A method and apparatus for disposing of drill cuttings 500 from an oil and/or gas well drilling platform 510, comprising (a) transporting the drill cuttings 520 to a cuttings collection area 530 on the platform 510; (b) providing a barge 10, the barge 10 having at least one storage area 30, a cover 100 operably connected to the at least one storage area 30, and covering the at least one storage area 30; (c) placing the cover 100 in a first open state so that cuttings 500 can be placed in the at least one storage area 30; (d) transporting the drill cuttings 500 from the cuttings collection area 530 to the at least one storage area of the barge 10; (e) placing the cover 100 in a closed state so that the cuttings 520 in the storage area 30 of the barge 10 are contained; (f) transporting the barge 10 from the drilling platform 510 to a collection site 540; (g) placing the cover 100 in a second open state so that the cuttings 520 in the storage area 30 can be removed; and (h) removing the cuttings 520 from the storage area 30.

A tracked, portable radial stacker for stockpiling bulk material including a linear conveyor having a rear portion and a front portion and being designed to carry bulk material from a low position adjacent the rear portion to a higher position adjacent the front portion. A foot may be disposed adjacent the rear portion of the conveyor and designed to selectively contact the ground to facilitate pivoting of the conveyor. A continuous track system may include a frame to which the conveyor is mounted, the track system including a pair of driven, parallel tracks designed to contact the ground to convey the stacker from one position to another, and to be lifted off the ground when desired. A pair of mid-wheels may be mounted to the frame to be moveable between a raised position in which they do not contact the ground and a lowered position in which they contact the ground and lift the tracks off the ground. A rear wheel may be mounted adjacent the rear portion of the conveyor to be moveable between a raised position in which it does not contact the ground and a lowered position in which it contacts the ground and lifts the tracks off the ground to permit movement of the conveyor on the rear wheel.