Structure and Control Method of Deep Sea Lifting Mine Pump

Abstract

The invention relates to a deep sea ore lifting pump structure and a control method thereof, and belongs to the technical field of ore lifting pumps. The structure comprises an ore lifting pump shell;a high-speed shaft is arranged in the ore lifting pump shell; a flow separation driving mechanism is arranged between the high-speed shaft and the ore lifting pump shell; and a fine particle fluid channel is formed between the flow separation driving mechanism and the high-speed shaft, and is provided with multiple guide rotating impellers in limiting fixed sleeving with the high-speed shaft. Theflow separation driving mechanism comprises a low-speed rotating hub; a spiral blade disc is arranged on the outer wall of the low-speed rotating hub; and a speed reducer in limiting embedded fixation with the low-speed rotating hub is arranged in the low-speed rotating hub. The structure has the advantages of compact structure, good flow separation effect, good pulp passing performance, enough conveying power and long service life, can improve the conveying efficiency, can save axial space, realizes separate flowing of high-concentration large-particle pulp and fine-particle seawater to prevent the runner blockage phenomenon, and achieves the purposes of low wear of the pump by pulp in a runner and efficient flow passing.

Description

technical field [0001] The invention relates to the technical field of mining pumps, in particular to a structure of a deep-sea mining pump and a control method thereof. Background technique [0002] The deep-sea mining system has high requirements on the safety of slurry pump pipeline transportation, and the flow channel must not be blocked. The existing ore lifting pump is a multi-stage space guide vane pump. The ore particles and seawater have a certain concentration and pass through the flow channel uniformly. In order to achieve the set lift, the impeller of the pump has a relatively high speed (about 1450rpm). and flow velocity (the speed at the outer end of the impeller can reach 20-30m / s), so there is not only a hidden danger of clogging, but also a lot of wear and tear. [0003] Deep-sea mining is a part of my country's marine power strategy, and it is also an important energy channel for the future. The current deep-sea mining engineering test and the mining syste...

AI Technical Summary

Problems solved by technology

[0004] The invention mainly solves the problems of poor anti-wear performance, easy blockage of flow channels and short service life in the prior art, and provides a deep-sea mining pump structure and its control method. The advantages of good effect, good slurry passability, sufficient transmission power and long service life solve the problems of pump blockage and poor wear resistance of flow-passing parts

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