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Temperature profile measurement applications of moving webs and roll structures with intelligent roll embedded sensor technology, TAPPI Journal November 2021
ABSTRACT: An intelligent roll for sheet and roll cover temperature profiles is a mechatronic system consisting of a roll in a web handling machine that is also used as a transducer for sensing cross-machine direction (CD) profiles. The embedded temperature sensor strips are mounted under or inside the roll cover, covering the full width of the roll’s cross-dimensional length. The sensor system offers new opportunities for online temperature measurement through exceptional sensitivity and resolution, without adding external measurement devices. The measurement is contacting, making it free from various disturbances affecting non-contacting temperature measurements, and it can show the roll cover’s internal temperatures. This helps create applications that have been impossible with traditional technology, with opportunities for process control and condition monitoring. An application used for process analysis services without adding a roll cover is made with “iRoll Portable Temperature” by mounting the sensor on the shell in a helical arrangement with special taping. The iRoll Temperature sensors are used for various purposes, depending on the application. The two main targets are the online temperature profile measurement of the moving web and the monitoring of the roll covers’ internal temperatures. The online sheet temperature profile has its main utilization in optimizing moisture profiles and drying processes. This enables the removal of speed and runnability bottlenecks by detecting inadequate drying capacity across the sheet CD width, the monitoring condition of the drying equipment, the optimization of drying energy consumption, the prevention of unnecessary over-drying, the optimization of the float drying of coating colors, and the detection of reasons for moisture profile errors. This paper describes this novel technology and its use cases in the paper, board, and tissue industry, but the application can be extended to pulp drying and industries outside pulp and paper, such as the converting and manufacture of plastic films.
Journal articles
A pilot paper machine evaluation of the effects of pressing on newsprint quality, TAPPI JOURNAL, June 1998, Vol. 81(6)
A pilot paper machine evaluation of the effects of pressing on newsprint quality, TAPPI JOURNAL, June 1998, Vol. 81(6)
Journal articles
Energy marketing offered as new cost-control option, TAPPI JOURNAL, January 1998, Vol. 81(1)
Energy marketing offered as new cost-control option, TAPPI JOURNAL, January 1998, Vol. 81(1)
Journal articles
Tools of the hedging trade, TAPPI JOURNAL, January 1998, Vol
Tools of the hedging trade, TAPPI JOURNAL, January 1998, Vol. 81(1)
Journal articles
Case study: power company operates Alabama mill's 'energy island', TAPPI JOURNAL, January 1998, Vol. 81(1)
Case study: power company operates alabama mill's 'energy island', TAPPI JOURNAL, January 1998, Vol. 81(1)
Journal articles
On management: Does the pulp and paper industry have to lose the race?, TAPPI JOURNAL, January 1998, Vol. 81(1)
On management: does the pulp and paper industry have to lose the race?, TAPPI JOURNAL, January 1998, Vol. 81(1)
Journal articles
Yankee dryer development through stress analysis, TAPPI JOURNAL, July 1998, Vol. 81(7)
Yankee dryer development through stress analysis, TAPPI JOURNAL, July 1998, Vol. 81(7)
Journal articles
Opening the operating window of impulse drying part i: the effect of ambient pressure at the nip opening, TAPPI JOURNAL, July 1998, Vol. 81(7)
Opening the operating window of impulse drying part i: the effect of ambient pressure at the nip opening, TAPPI JOURNAL, July 1998, Vol. 81(7)
Journal articles
Critical pressure control of delamination in impulse drying, TAPPI JOURNAL, July 1998, Vol. 81(7)
Critical pressure control of delamination in impulse drying, TAPPI JOURNAL, July 1998, Vol. 81(7)
Journal articles
Effect of hydrolyzed asa on sizing in calcium carbonate filled paper, TAPPI JOURNAL, July 1998, Vol. 81(7)
Effect of hydrolyzed asa on sizing in calcium carbonate filled paper, TAPPI JOURNAL, July 1998, Vol. 81(7)