Paper Technology International 2020 - Journal - Page 20

PAPERTECHNOLOGYINTERNATIONAL
How to protect your Tissue converting process against fires
Solutions for fire prevention in the tissue paper conversion process, with the latest
technology of highest technical standards.
Anders Bergström, GM of Industrial Applications, Firefly
INTRODUCTION:
The converting process normally generates a lot of dust and other cellulose debris, which can rapidly ignite due to friction, for
example in and around bearings and shafts. Tissue strips are especially critical in case they wind up around the shafts. If the converting
line or part of the line is enclosed, even more dust accumulates inside the enclosure and the risk of fire increases. Traditional extinguishing
systems, such as sprinklers, will not be able to reach these high-risk areas. Firefly, with Tissue Solutions®, offers a range of complete fire
prevention and protection solutions, specially designed for both the tissue machine and the complete converting process.
Firefly has launched and obtained the world’s first thirdparty certified Quick Suppression System. It is a complete system
designed for extremely quick detection and suppression of flames
or fires in and around critical machinery and high-risk areas. The
system aims to identify and extinguish the fire in seconds and the
purpose is to act quickly enough to avoid or significantly reduce
damages and production downtime.
Currently, Firefly has protected more than 200 tissue and
converting machines, on five different continents.
Figure 1: Firefly’s fire prevention and protection solutions
are specially designed for both the tissue machine and the
complete converting process.
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Unwinding
The Unwinder area is considered high-risk because:
•
It generates a lot of dry dust that can accumulate on
bearings, shafts, frames and heated unwind brakes
•
A jumbo roll could contain a dangerous ignition source
or a dangerous particulate that when unwinding could
have access to oxygen and start a fire in the process.
•
Strips of tissue paper often end up around the axles
and can cause frictional heat that can ignite and cause
a fire.
Firefly’s Unwinding fire protection solution is designed for
quick and efficient detection and suppression of flames. The system
consists of FD-UVIR flame detectors on each side of the machine
and water mist nozzles that cover the risk area. The atomized water
drops will instantly evaporate by the heat of the fire.

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