Manhole cover for vacuuming inside a slurry tank

JP1725661SActive Publication Date: 2025-10-01SUMITOMO METAL MINING CO LTD
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Patent Information

Application Number
JP2022002720D
Authority / Receiving Office
JP · JP
Patent Type
Designs
Current Assignee / Owner
Filing Date
2022-02-14
Publication Date
2025-10-01
Estimated Expiration
2047-02-14

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Abstract

This item is a vacuum manhole cover for removing residues such as ore slurry that have accumulated inside a tank. Its shape is characterized by a large-diameter circular plate that is attached and detached to the manhole at the bottom of the tank's side, with a nozzle and valve connected to the cover. After all the slurry inside the tank has been discharged, the valve is operated to suck out and remove the residue inside the tank.
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