40mm max aggregate size asphalt batching plant wearable mixing
blade&arm 100,000 batch lifetime
⑴. Summarization of operation principle of bag type dust collector
Dirty air moves into duster, cross it through bags. Because vacuum
is built by exhaust fan, so, clean air can enter bags, but dusts
Clean air goes upward, across bags, at the same time, dust falls
onto the screw conveyor and exit. The screw conveyor is a mechanic
structure, and opens to atmosphere.
2. Cleaning cycle
During the running of screw conveyor, clean air from atmosphere is
allowed to enter baghouse through its top, causing bend to bags,
and causing dust to fall to collecting hopper.
3. Startup procedure
① start discharging system, and rotary valve.
② check and run the screw conveyor of duster.
③ start exhaust fan, and set air door to shut-off.
④ start burner and keep low flame 10 minutes, and only when the
thermocouple indicate that the exhaust temperature reaches 120 ℃,
start aggregate feeding system.
4. Important clew
To prevent fibre from being damaged by high temperature, the
warm-up cycle is remarkable.
Avoid too high temperature with director, when it reaches 120 ℃,
the cold-wind valve will open automatically; when it reaches 160 ℃,
computer will provide overheating alarm.
Ensure that burner control system, along with flame, can keep
exhaust temperature under the highest value for fibre.
5. Stop procedure
brief stop(reach 5 minutes):
Keep all functional components running normally.
Metaphase stop (over 5 to 60 minutes)
① cut off flame, then keep exhaust fan and dryer running.
② only burner needs to be started, when start the facility anew.
Longer stop (over 60 minutes):
① after flame cut off, before the facility stop sending out
abundant dust, keep fan, counterblow, and discharging system
running for at least 20 minutes.
② restart facility according to primary start-up procedure.
|Dust filter Maintenance|
|Check||① open cover board, check counterblow system for running. The inlet
air cylinders should be in-phase to counter-blowing period.|
|② are the bags of duster dry? Are all parts clean?|
|③ check whether dusts has been discharged from duster with eyes.|
|④ check coping airtight pad of each cover board for installation.|
|⑤ check ventilation board on each bag jugular for air tightness.|
|⑥ check dust-collecting pipe for dust status.|
|Weekly check||① check dust-collecting pipe with eyes.|
|② check counterblow system.|
|③ check clutch.|
|④ check screw conveyors, gear case, chain, and middle bearing for
The life of bags lie on many factors. Such as operating cycle,
corruption, dust abrasion, high temperature and etc. We have
discovered, due to various factors, the life will change between
3000 to 8000 hours.
Except those near entry bags burning out for high temperature, the
usual cause in common is, fibre loses intensity gradually or be
abraded, and whole set bags have to be replaced.
② installing and replacing of bags.
Be sure to shut off facility, especially rotator valve, screw
conveyor, and counterblow system. Take apart one steel cage, clean
and check it for any damage, replace it if necessary.