Elscint recently manufactured three vibratory feeding systems for feeding of uranium
pallets to a centerless grinding machine. In fact, Elscint had already supplied
4 similar systems earlier to the same customer.
The pellets were
having diameter 14 mm to 16 mm and length too varied between 15 mm to 18 mm.
Handling of uranium pellets is hazardous for the operator and hence the
customer wanted to automate his process. The first 4 systems supplied by
Elscint had been working for four years without any problem and hence the
customer was confident about ordering three more repeat systems. The customer
had seen that the output of his grinding machines had increased tremendously due
to automatic feeding and productivity too had increased. The equipment consisted
of a vibratory bowl feeder and conveyor ahead of the same. Thereafter a linear
vibrator with a V type chute was provided to take the parts upto the grinding
machine work-rest. Additionally, a loading tray with a linear vibrator was
provided on the top of the vibratory bowl feeder for loading the pellets
through their boat. The complete vibratory bowl feeder was covered with a noise
enclosure with a top polycarbonate cover to ensure that no fumes came out of
the equipment. The fumes being radioactive, it was imperative that a separate
suction be provided to ensure that the same are removed. Provision was made for
this too. A cubical Stand with (+-/-) 100 mm ht. adjustment and X – Y movement
was provided for ease of adjustment.
The customer was
worried about the extent of chipping of the pallets and removal of the chips
and dust. For this, proper dust holes were provided with a pipe to take out the
dust and chips from the equipment. They were accumulated in a separate bin. The
bowl was lined with Brushlon coating to ensure that chipping was negligible and
also the feed rate was improved. A total feed rate of 250 pellets per minute was
Elscint not only completed this equipment but installed and commissioned
the same at the customers plant. You can have a look at the video of the same.