US 12,129,598 B2
Arrangement for installation of monitoring sensors of a treatment vessel for lignocellulosic material
Aki Muhli, Kotka (FI); and Tomi Suikki, Kotka (FI)
Assigned to ANDRITZ OY, Helsinki (FI)
Appl. No. 17/295,596
Filed by ANDRITZ OY, Helsinki (FI)
PCT Filed Nov. 21, 2019, PCT No. PCT/FI2019/050834
§ 371(c)(1), (2) Date May 20, 2021,
PCT Pub. No. WO2020/104730, PCT Pub. Date May 28, 2020.
Claims priority of application No. 20185988 (FI), filed on Nov. 22, 2018.
Prior Publication US 2022/0018067 A1, Jan. 20, 2022
Int. Cl. D21C 7/12 (2006.01)
CPC D21C 7/12 (2013.01) 18 Claims
OG exemplary drawing
 
1. An arrangement for installations of monitoring sensors of a vessel configured to treat lignocellulosic material, wherein the vessel includes a central pipe extending generally vertically through a center of the vessel and comprising at least one concentric pipe mounted coaxially within the vessel, wherein the central pipe extends downward into a lower half of the vessel, the arrangement comprising:
at least one sensor channel arranged along an outermost wall of the at least one concentric pipe of the central pipe, and
a cable conduit connected to the at least one sensor channel and connected to an exterior of the vessel,
wherein the at least one sensor channel is at least one meter long and includes at least one of:
a plurality of sensor holders mounted to the sensor channel and configured to hold sensors, or
a plurality of thermal sensors and cables for the thermal sensors within the at least one sensor channel.