DocumentCode :
2485581
Title :
Wood chip fiber flow rate control and TMP refining energy saving
Author :
Ding, Feng ; Lejeune, Claude ; Poulin, Alain ; Laperrière, Luc
Author_Institution :
Centre de Rech. Ind. du Quebec (CRIQ), QC, Canada
fYear :
2012
fDate :
13-16 May 2012
Firstpage :
437
Lastpage :
442
Abstract :
TMP (Thermo Mechanical Pulping) is the most energy intensive process in the pulp and paper industry, about 75% of the total energy of a TMP plant is consumed by the refining process. In a typical mill under normal operating conditions, up to 30% of the disturbances in the pulping process can be explained by chip variations. In this paper, the statistical analysis of the refining processes of the mills data has demonstrated that the chip basic density stabilization could result in 3.4 - 6.4% of refining energy saving. The laboratory scale experiment and its mathematical model simulation has revealed refining energy saving is about 6.3% while the standard deviation of wood chip density reduced from 12 to 7 (kg/m3). Finally, the mill real time instrumentation and trial have shown that the stabilisation of wood characteristics, especially chip basic density can reduce the total refining energy by at least 2%.
Keywords :
energy conservation; flow control; paper industry; paper making; stability; thermomechanical treatment; wood processing; TMP refining energy saving; chip basic density stabilization; mills data; pulping process; refining processes; statistical analysis; thermo mechanical pulping; wood chip density; wood chip fiber flow rate control; Density measurement; Fasteners; Moisture; Process control; Refining; Semiconductor device measurement; Standards;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Instrumentation and Measurement Technology Conference (I2MTC), 2012 IEEE International
Conference_Location :
Graz
ISSN :
1091-5281
Print_ISBN :
978-1-4577-1773-4
Type :
conf
DOI :
10.1109/I2MTC.2012.6229678
Filename :
6229678
Link To Document :
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