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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-12564824-B2, on 3 March 2026. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000002351

Pre-hydrolysis pressure vessel system comprising a cleaning arrangement

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Classification
Material Handling › Conveying Systems
Inventors
FREDRIKSSON LARS, HÄGGLUND CHRISTER, PETTERSSON PATRIK
Assignee
VALMET OY
Original source
US-12564824-B2, the United States Patent and Trademark Office, 3 March 2026
Document SHA-256
4f3ce9ae323ab5addeeeec226b9ef6b6f83dcc1cead604ddc58740086e8711af

Abstract

A pre-hydrolysis pressure vessel system includes; a material inlet for receiving biomass material to be treated in the pre-hydrolysis pressure vessel system and a material outlet for expelling treated biomass material out from the pre-hydrolysis pressure vessel system; a transport screw arrangement including a transport screw provided inside an enclosing housing of the transport screw arrangement, said transport screw being configured for transporting biomass material through the enclosing housing towards the material outlet of the pre-hydrolysis pressure vessel system. The enclosing housing includes a cleaning arrangement that includes: at least one elongated fluid channel positioned in connection with an inner wall of the enclosing housing and wherein said at least one elongated fluid channel comprises a number of fluid outlets, and at least one cleaning fluid inlet which is provided through the enclosing housing in fluid connection with the at least one fluid channel.

Publication information

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Citation

OpenTechnical Publication OT-2026-000002351, “Pre-hydrolysis pressure vessel system comprising a cleaning arrangement,” published September 15, 2026 at 19:12:25 UTC, https://opentechnical.org/p/OT-2026-000002351.

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