Buried by urea while unclogging a belt conveyer hopper
[Circumstances of the Incident]
This accident occurred during packaging
operations to fill bags with urea.
At around 8:05 on the day of the accident,
the victim and another worker entered
where bulk urea was stored. They found
urea piled on the floor as the
been transported to the warehouse
through the previous night by
a chute installed under the ceiling,
a pile of granular urea with a
of some 10 meters and a slope of about
Granular urea covered the hopper of
belt conveyer used to transport urea
to packaging machines.
The victim climbed the slope to a height
of two meters and shook a pipe that
has been used to measure the amount when
urea was dumped into the hopper. At
the same time, another worker started to
operate a tractor shovel to collect urea
from the bottom of the heap of the
pile. After scooping up some six or seven
loads, a large amount of urea
suddenly began to slide the slope
down to the direction of the victim and buried
With the help of other workers, the
worker rescued the victim from the
urea only to find him already dead.
The following can be considered as the causes
of this accident.
1 The belt conveyer hopper was filled
granular urea because urea had been
into the warehouse the previous night
while the underground belt conveyer
operating. Trying to unclog the filled
by hand was clearly an improper procedure,
as such work must be carrying out with tractor
shovels or similar machines.
2. The second worker in the warehouse
should have instructed the victim
get off the urea pile when he noticed
the victim was on the slope and the
belt conveyer had started to work.
the second worker failed to do so.
[Type of business] Non-organic/organic chemical product manufacturing [Type of accident] Collapse [Number of victims] One fatality