A method and apparatus for generating a slurry from the surface of the subsea floor, separating that slurry into multiple slurries, and pumping the desired slurry to the surface.

A method and apparatus for generating a slurry from the surface of the subsea floor, separating that slurry into multiple slurries, and pumping the desired slurry to the surface.

The present invention is directed to a drilling fluid reclaimer. The reclaimer has at least one adjustable screen assembly for providing a leveling filter for reclaimed drill fluid. Used drill fluid is placed at the screen assembly at the front the of the screen assembly. The at least one screen is vibrated to separate large particulate matter from liquid drilling fluid. A second screen is provided for additional filtering. Large particulate matter is expelled by a chute at the back of the screen assembly. Drilling fluid passing through the screen is “reclaimed” for use with a drilling system.

Hydro excavation vacuum apparatus that process spoil material onboard the apparatus by separating water from the cut earthen material are disclosed.

Hydro excavation vacuum apparatus that process spoil material onboard the apparatus by separating water from the cut earthen material are disclosed.

An environmentally-friendly semi-closed loop deep-sea ore hydraulic lifting system, comprises a water injection pump, a water injection riser, a deep-sea multiple high-pressure silo feeding device, a lifting riser, a dewatering device and a pipeline. The water injection pump and the dewatering device are fixed on a mining ship. The water injection pump is connected to the deep-sea multiple high-pressure silo feeding device through the water injection riser. The deep-sea multiple high-pressure silo feeding device is connected to the dewatering device through the lifting riser. The water injection pump is connected to the dewatering device through the pipeline. Seawater is pumped into the water injection riser by the water injection pump, then ore is fed into a high-pressure hydraulic pipeline by the deep-sea multiple high-pressure silo feeding device to be mixed with the seawater, and an obtained ore and seawater mixture is lifted to the mining ship on the sea surface.

An environmentally-friendly semi-closed loop deep-sea ore hydraulic lifting system, comprises a water injection pump, a water injection riser, a deep-sea multiple high-pressure silo feeding device, a lifting riser, a dewatering device and a pipeline. The water injection pump and the dewatering device are fixed on a mining ship. The water injection pump is connected to the deep-sea multiple high-pressure silo feeding device through the water injection riser. The deep-sea multiple high-pressure silo feeding device is connected to the dewatering device through the lifting riser. The water injection pump is connected to the dewatering device through the pipeline. Seawater is pumped into the water injection riser by the water injection pump, then ore is fed into a high-pressure hydraulic pipeline by the deep-sea multiple high-pressure silo feeding device to be mixed with the seawater, and an obtained ore and seawater mixture is lifted to the mining ship on the sea surface.

A dewatering system for separating water from solids in dredged slurries in real-time, parallel to the dredging of harbors, stream, and lakes. Water removed from the solids can be returned to the body of water from which it came. After the system removes debris and sand from the slurry, the system removes capillary water the remaining fines and filters out most toxic particles.

A dewatering system for separating water from solids in dredged slurries in real-time, parallel to the dredging of harbors, stream, and lakes. Water removed from the solids can be returned to the body of water from which it came. After the system removes debris and sand from the slurry, the system removes capillary water the remaining fines and filters out most toxic particles.

Hydro excavation vacuum apparatus that process spoil material onboard the apparatus by separating water from the cut earthen material are disclosed.