17(61)
working, and the materials automatically fall down by self-gravity. Motor will be
delayed when magnetic proximity switch (18) detects no materials left in the
hopper. And then, open the diaphragm valve (19), the high-pressure air in the
storage tank (20) will pass the washing device to clean the dust covered in the
filter 1 (21) and hopper (14), then the motor starts again. If the machine cannot
suck materials for three times, the red alarm light (9) on control box (11) will
blink.
When the blower (2) sucks materials, the air inside the air-inputting pipe will
past filter 2 (7) for filtering. Few dust sticks to the filter. After the blower finishes
the suction, the vacuum breaking diaphragm valve (3) installed between the
blower and filter will create a reverse impulsive airflow to shake down the dust
sticking to the filter to the dust collection bucket (5).