An unloading type sinking rescue device of a subsea mining vehicle and a use method thereof are provided. The unloading type sinking rescue device includes an assembly support, an unloading system, an ejection system and a control system. The assembly support is box-shaped, fixed to a subsea mining vehicle, and provided with a plurality of enclosed cavities. The unloading system includes a counterweight, a counterweight cable, a counterweight fixing bracket and a counterweight recovery cavity. The ejection system includes an anchor, an ejection cavity, an anchor cable, an anchor recovery shaft, a pulley, a spring and a boosting device. The control system controls the operation of the unloading system and the ejection system. The use method includes: (1) unloading; (2) ejection; (3) recovery of a part of counterweights; (4) recovery of the anchor; and (5) recovery of remaining counterweights.

A marine positioning system can have a floating platform, an external vessel, a positioning module, and a control module. The external vessel can be configured to selectively tow and maintain the floating platforming in a preselected position. The external vessel can have a propulsion unit. The propulsion unit can be configured to propel the floating platform in a preselected direction between 0 and 360 degrees. The control module can be in communication with the propulsion unit and the positioning module. The control module can be configured to receive the location data from the positioning module. Also, the control module can be configured to determine if the floating platform is in the preselecting position. In addition, the control module can be configured to generate instructions including the preselected direction that the floating platform needs to travel to be positioned in the preselected position.

A novel emissions control watercraft (STAXcraft) solving a long-felt but unsolved need regarding disadvantages associated with prior-art emissions servicing watercraft, the disadvantages selected from the group, but not limited to, the use of tugboats, securing or mooring servicing watercraft to a serviced vessel, additional expenses and time-delays and inefficiencies of land-based approaches, increased toxic emissions, increased greenhouse gases (GHG) emissions, danger from falling cargo, tanker safety, alongside mooring in narrow channels preventing other OGV's to pass safely, and cargo tank emissions.

A mooring connection including: a linkage comprising a plurality of articulated parts, adjacent articulated parts of said linkage in pin joint engagement and arranged to pivot at the pin joint about a first axis; wherein at least one pin joint within the linkage arranged to pivot about a second axis, said second axis orthogonal to the first axis.

An underwater vehicle includes a plurality of releasable panel members that are initially in a storage state in which the releasable panel members form a closed housing and the underwater vehicle is neutrally buoyant, an actuatable effector that is retained in the closed housing. The effector has an anchor and a positively buoyant upper unit opposite the anchor. When the plurality of releasable panel members are released to open the closed housing, the effector is separable from the releasable panel members and maintained in a vertically downward direction by the anchor and the positively buoyant upper unit.

A deep-sea anchoring device for gravity and anchor composite with a decelerating wing includes an anchoring base, a decelerating wing and an anchor body. The anchoring base provides an anchoring force by its own gravity, heavy pressure and friction with a sea floor. The decelerating wing includes a main decelerating wing, and a secondary decelerating wing that increases the cross-sectional area for diversion, so that a resistance is produced by water flowing through the main and secondary decelerating wings to reduce the falling speed of the anchoring base to a safe range, and prevent the anchoring base from being damaged by its collision with the sea floor. The anchor body is pivoted to the bottom of the anchoring base and anchored by being shoveled into a sea floor mainly consisting of gravels or deposited soil or abutted against rough rocks of a sea floor mainly consisting of rocks.

An autonomous anchor device, involving a streamlined body configured to freefall through a water column and to drive itself into sediment of an aquatic environment and a plurality of blades operably coupled with the streamlined body and configured to deploy itself into the sediment as well as retract itself from the sediment.

An underwater vehicle includes a plurality of releasable panel members that are initially in a storage state in which the releasable panel members form a closed housing and the underwater vehicle is neutrally buoyant, an actuatable effector that is retained in the closed housing. The effector has an anchor and a positively buoyant upper unit opposite the anchor. When the plurality of releasable panel members are released to open the closed housing, the effector is separable from the releasable panel members and maintained in a vertically downward direction by the anchor and the positively buoyant upper unit.

The present invention relates to an apparatus and a method for solid fuel gasification with tar self-removed within the gasifier, and the apparatus consists essentially of a feeder, a gasifier, a slag extractor, a cyclone separator for gasification gas fly ash or fly ash filter separator, a condenser, a condensate evaporator, a preheating device for gasification medium and a gas holder. Feed the solid fuel into the gasifier through the double sealed feeding valves from the feeding inlet, the solid fuel within the gasifier generates gasification gas, ash and slag after reaction of drying, pyrolysis, gasification and combustion. The present invention provides an apparatus and a method for solid fuel gasification with tar self-removed within the gasifier, which can not only accomplish effective removal of tar and zero discharge of coking wastewater, but also optimize gas quality during the process, improve energy efficiency and reduce operating cost.

An autonomous anchor device, involving a streamlined body configured to freefall through a water column and to drive itself into sediment of an aquatic environment and a plurality of blades operably coupled with the streamlined body and configured to deploy itself into the sediment as well as retract itself from the sediment.