MARINE AIRLIFT OPERATION METHOD AND SYSTEM Russian patent published in 2008 - IPC E21C50/00 E21C45/00 F04F1/20 

FIELD: mechanical engineering, particularly underwater mineral deposit mining.

SUBSTANCE: method involves using system including lift tubing, supply chamber with connection pipe, supply pipe, pump with injection pipeline, air separator installed in lift tubing, lift tubing mixer communicated with injection pipeline and pump with corresponding heating pipeline. The system also has water separator installed in intermediate cross-section of injection pipeline. The water separator is made as independent accumulator. The system includes connection pipe attached to independent accumulator, additional mixer communicated with injection pipeline and liquid flow meters. Additional accumulator is arranged in intermediate transversal cross-section of lift tubing. Sucking pump pipeline and sucking compressor pipeline are connected with additional accumulator and air separator correspondingly. Independent accumulator comprises liquid level indicators. Sucking pump pipeline is communicated with additional connection pipe provided with controllable gate. Sucking compressor pipeline comprises filter. Consistometer is connected with supply pipe.

EFFECT: increased efficiency of continuous underwater mineral deposit element lifting due to increased marine hydraulic rams.

2 cl, 5 dwg