Processing tank

The treatment tank addresses water and scum accumulation issues by employing a stirring device to generate specific flows and a wave-breaking member, ensuring accurate particle size measurements in water purification systems.

JP2026099146APending Publication Date: 2026-06-18KUBOTA CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
KUBOTA CORP
Filing Date
2024-12-06
Publication Date
2026-06-18

AI Technical Summary

Technical Problem

Conventional water purification systems face challenges in accurately measuring particle sizes due to treated water accumulation and scum accumulation inside the light shielding hood, which affects measurement accuracy and introduces errors.

Method used

A treatment tank design with a stirring device generating surface and swirling flows to prevent treated water and scum accumulation, featuring an observation device with intake and outlet ports positioned to align with flow directions and a wave-breaking member to minimize interference and scum entry.

Benefits of technology

The design effectively prevents treated water and scum accumulation, enhancing measurement accuracy by aligning intake and outlet ports with flow directions and using a wave-breaking member to reduce wave interference, thus improving observation precision.

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Abstract

The present invention provides a processing tank that can prevent scum from accumulating inside the observation device body. [Solution] The treatment tank 2 is equipped with a stirring device 10 for stirring the water to be treated 7 inside the tank body 9 and an observation device 11. The tank body 9 has one opposing wall surface 14 and the other wall surface 15. The stirring device 10 has a stirring blade 25 that rotates freely around a rotation axis 23, generating a surface flow 30 near the water surface 22 that flows in the same direction as a first direction 27 from one wall surface 14 to the other wall surface 15. An arrangement area 33 is set between the end 31b on the wall surface 14 side of the rotation region 31 of the stirring blade 25 and the rotation axis 23. The observation device body 34 of the observation device 11 has an intake port 53 for taking in the water to be treated 7 near the water surface 22 and an outlet port 54 for discharging it to the outside. The arrangement area 33 is set up so that the intake port 53 is included in the arrangement area 33, the intake port 53 opens facing the upstream side of the surface flow 30, and the outlet port 54 opens facing the downstream side of the surface flow 30.
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