In order to meet the power and quality requirements of the equipment carried by the scientific research ship,a small hydraulic mining mechanism for polymetallic nodules was developed using a single pump to supply water for the capture nozzle and the conveying nozzle.CFD-DEM software was used to carry out the simulation analysis of the flow field characteristics and the collection rate of small hydraulic mining mechanism,and the pool test and the sea test were carried out.The pool test results show that when the collection width is 0.3 m,the collection power is 4.9 kW,and the water pressure of the main pipeline is 58 kPa,the collection rate of simulated nodules is 75％,which meets the design requirements.A total of 19 kg of polymetallic nodules are collected in the sea test,which verifies that the mining mechanism has good collection function and can reduce the power and quality of the equipment.The research results can provide reference for the design of similar mining mechanism.
关键词
小型水力式集矿机构/多金属结核/深海采矿/CFD-DEM
Key words
Small hydraulic mining mechanism/Polymetallic nodules/Deep sea mining/CFD-DEM
维普
万方数据