Page 38 - Annual Report_21-22

Figure 1.2: Active granular flow field from the hopper with the presence of the stagnant zones. The corresponding
velocity field deduced from the image analysis is also represented.

Figure 1.2 shows the active granular field of 1 mm particle size are utilized during the first pass and second pass for
glass beads from the flat bed hopper. The process of predicting the velocity vectors. The investigation window
velocity field deduction involves identification of the area pans over the entire filtered image to provide the velocity
of investigation under consideration. Masking operation field shown in Figure 1.2. Calibration of the velocity vectors
is performed to rule out the areas from the photographs is performed to get the velocity scaling. Simultaneously,
which are not necessary for the investigation. Image the validation of the technique would be performed by
filtering and de-noising operation is performed to extract seeding the colored glass beads and comparing the results
the relevant features from the photographs. These from the cross correlation. The quantification of the mass
operations are necessary to reduce the signal to noise flow rate from the hopper would also be monitored to
ratio in the analysis and reduce the spurious results. The quantify the effectiveness of providing the inserts/flow
investigation window of 16 x 16 pixel size and 8 x 8 pixel modifiers in the flow field.

Expert Eye-on-pellet System commissioned at JSW Steel Pvt. Ltd., Bellary, Karnataka through our
licensee M/S SVNT InfoTech Pvt. Ltd., Hyderabad

Expert Eye-on-pellet technology is an indigenous The Expert Eye-on-pellet technology, developed by the
technology, by which the iron ore pelletization discs can Process Engineering and Instrumentation Department of
be automatically controlled to maintain the desired size CSIR-IMMT was transferred to M/S SVNT Infotech Pvt. Ltd.
of pellet production. The system measures the pellet size in the year 2021. The technology was adopted by M/S JSW
distribution in real-time and controls the disc speed and Steel Pvt. Ltd, Ballary, Karnataka for its pellet plant 2. Based
feed rate in such a way that the pellets are produced in the on the specialised requirement of JSW, the system was
desired size range without any human intervention. customised and successfully installed and commissioned.

36 ANNUAL REPORT 2021-22