Page 37 - Glass Machinery Plants & Accessories no. 2-2020
P. 37
Figure 2 – Cameras in
Advanced ESIII™
Process Control
container furnaces, work bet-
ter when using two cameras to
adequately monitor the inside of
the furnace as shown in Figure
3. Once employed on either side
of the backwall of a float furnace,
each camera takes an image and
the two are combined into one
composite view via the Batch
Monitoring Software. The soft-
ware further converts this image
to a Bird’s Eye View.
Importantly, this Bird’s Eye
View of the furnace is converted
the harsh environment within the as thermocouples, flow meters, to the Batch Monitoring cover-
furnace. flow control valves, cameras, age area. This image is pro-
level detectors etc. The sensors cessed and the measured data
are connected to a Process Logic are statistically analyzed for the
ESIIITM CONTROL SYSTEM
For the batch monitoring and Controller and then to a human batch position with respect to the
temperature control of the fur- interface monitor or controller. melter fuel profile, and electric
nace to be most effective, the From the human interface con- boosting. Bubbling (if utilized)
cameras must be integrated into troller, the ESIII™ can be added, for the various control aspects
the ESIII™ control system. Figure which provides a supervisory of the energy versus batch move-
2 shows this integration into the level of Multiple Input – Multiple ments would be included.
control scheme. The operator Output control. In Figure 3, we demonstrate
can also check the visual infor- how two cameras installed in
mation, but the main difference NOT ONLY CONTAINER the doghouse wall of a float fur-
is that all digital info will be auto- GLASS nace show us the batch in a
matically processed by ESIII™. Container glass furnaces may perspective angled view. This
Figure 2 also shows the vari- be successfully monitored using image is than processed by our
ous levels of instrumentation for only one camera. However, large Batch Monitoring Software to
control, including sensors such float furnaces, or some larger create a bird view eliminating the
Figure 3 – A Composite
Visual Image of the Furnace
Converted into a Digital
Bird’s Eye View
glass machinery plants & accessories 2/2020 35
