Seabed sand filling rotary distributing device

Abstract

The invention relates to a seabed sand filling rotary distributing device. The seabed sand filling rotary distributing device comprises a corrugated rubber hose, a spiral descending channel slurry feeding barrel and a floating disc type rotary jet flow transmitter which are sequentially communicated from top to bottom. The corrugated rubber hose is in flexible connection with an external slurry delivery pipe at the upper portion and the spiral descending channel slurry feeding barrel at the lower portion through sleeve type connecting devices, and the spiral descending channel slurry feeding barrel is in sleeved connection with the floating disc type rotary jet flow transmitter. Compared with the prior art, the seabed sand filling rotary distributing device has the advantages that a 'spiral descending tail end reflection runner' is adopted to perform ore feeding in a seabed sand filling mode, and benthic ecological balance is not broken; seawater reaction couples produced by high-pressure jet flow ore discharge couples serve as rotating power to achieve rotary distribution, even filling of a benthic goaf is achieved; discharging port jet flows and the rotation effect of a spiral channel are combined to form a 'diffusion impeller', and the sand distribution coverage area is remarkably increased; rotating jet flows are not piled, accordingly ship moving times are decreased, and the production efficiency is improved.

Description

technical field [0001] The invention relates to a mining pit tailings backfilling equipment for seabed mining, in particular to a seabed sand filling rotary distributor. Background technique [0002] The main equipment for seabed mining is an operation ship integrating sand mining and mineral processing, on which one-stop operations such as offshore mining, mineral processing, output of concentrates, and discarded tailings can be carried out. The raw ore collected underwater is pumped to the mineral processing area for separation. , The ore pulp separated by the beneficiation operation needs to be sealed and sent to the original pit for pit filling. The requirements for the filling operation are (1) backfill the tailings to the goaf, and do not spread to the area to be mined, otherwise the grade of the raw ore in the area to be mined will be reduced; (2) it is not allowed to discharge randomly on the sea surface or in the sea, and to protect marine life, no Destroy the ecol...

AI Technical Summary

Problems solved by technology

[0003] The existing filling device is composed of a funnel and a deep water pipeline, which adopts the method of direct discharge at a certain depth under the sea surface. This direct discharge method will stir up the sunken ore on the seabed, cause the muddy surface to rise, and destroy the ecology of the seabed; at the same time, the formed material pile collapses. Turbulent flow (grit flow) pollution will be formed after the pile

[0004] Due to the limitations of production power consumption and large-scale discharge technology at a depth of more than 50 meters in the deep sea, the mining of non-metallic minerals on the seabed has not been able to form large-scale production

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