Reactor discharge screw

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12091817
SERIAL NO

17289001

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The invention relates to a discharge screw arrangement (12) for discharging lignocellulosic material (7) from a lignocellulosic treatment reactor (1) and comprises a discharge screw (10), a feeder pipe (11) and a blow pipe (5), the discharge screw being accommodated in and rotatably arranged inside the feeder pipe and being configured to mechanically transport the lignocellulosic material in a longitudinal direction along a rotational axis of the discharge screw through the feeder pipe towards a downstream end (14) of the feeder pipe, which discharge screw arrangement is configured to allow steam to flow through the feeder pipe to help transporting the lignocellulosic material in the longitudinal direction along through the feeder pipe and out of the feeder pipe through an outlet nozzle (24) arranged in a side wall of the feeder pipe (11) at the downstream end of the feeder pipe and into the blow pipe, wherein the discharge screw arrangement further comprises a material spreader (20), which is rotatably arranged at the downstream end of the feeder pipe and is configured to transport the lignocellulosic material in a radial direction, perpendicular to a rotational axis of the material spreader, towards the outlet nozzle, which is arranged peripherally of the material spreader, and out of the feeder pipe through the outlet nozzle and into the blow pipe.

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Patent Owner(s)

Patent OwnerAddress
VALMET AB851 94 SUNDSVALL

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ahlgren, Örjan Sundsvall, SE 8 4

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3.5 Year Payment $1600.00 $800.00 $400.00 Mar 17, 2028
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