Environmentally-friendly semi-closed loop deep-sea ore hydraulic lifting system
US12378749B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 25, 2020 |
| Grant date | Aug 5, 2025 |
| Priority date | — |
| Expiry date | Sep 30, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C50/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.