US 12,378,749 B2
Environmentally-friendly semi-closed loop deep-sea ore hydraulic lifting system
Lixin Xu, Shenzhen (CN); Xiuzhan Zhang, Shenzhen (CN); Hejing Liu, Shenzhen (CN); and Jiancheng Liu, Shenzhen (CN)
Assigned to China Merchants Marine Offshore Research Institute Co.; and China Merchants Deepsea Research Institute (Sanya) Co., Shenzhen (CN)
Appl. No. 17/613,505
Filed by CHINA MERCHANTS DEEPSEA RESEARCH INSTITUTE (SANYA) CO., LTD., Yazhou Sanya (CN); and CHINA MERCHANTS MARINE AND OFFSHORE RESEARCH INSTITUTE CO., LTD., Shenzhen (CN)
PCT Filed Dec. 25, 2020, PCT No. PCT/CN2020/139429
§ 371(c)(1), (2) Date Nov. 23, 2021,
PCT Pub. No. WO2021/143491, PCT Pub. Date Jul. 22, 2021.
Claims priority of application No. 202010051551.6 (CN), filed on Jan. 17, 2020.
Prior Publication US 2022/0259816 A1, Aug. 18, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. E02F 7/00 (2006.01); E02F 3/88 (2006.01); E02F 3/90 (2006.01); E02F 3/94 (2006.01); E02F 7/06 (2006.01); E02F 7/10 (2006.01)
CPC E02F 3/8858 (2013.01) [E02F 3/94 (2013.01); E02F 7/005 (2013.01); E02F 7/10 (2013.01)] 5 Claims
OG exemplary drawing
 
1. An environmentally-friendly semi-closed loop deep-sea ore hydraulic lifting system, comprising 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, wherein 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, and the water injection pump is connected to the dewatering device through the pipeline;
wherein the deep-sea multiple high-pressure silo feeding device comprises a storage silo, a high-pressure silo and a feeding silo connected in order from top to bottom, the number of the high-pressure silo is two or more, the outlet of the feeding silo is connected to a high-pressure pipeline, one end of the high-pressure pipeline is connected to the water injection riser, and the other end of the high-pressure pipeline is connected to the lifting riser;
wherein the high-pressure silo is connected to the high-pressure pipeline respectively through a pressurized pipeline, and the pressurized pipeline is respectively equipped with a booster valve;
wherein a pressure relief valve is provided on the high-pressure silo.