The ZC mechanical rotary back blowing dust collector has the characteristics of tangential air intake, high-pressure air dust cleaning, external filter dust removal, good dust cleaning effect, fully enclosed filtration area, easy maintenance and repair of the machine, and convenient operation. Mechanical rotary blowback dust collectors will become equipment for dust removal in mines.

Dust collector in quarryCharacteristics:
1. The flow pattern design of the shell cyclone dust collector can play a local cyclone role and reduce the load on the filter bag. The shape of the cylindrical dome is uniform in force.
2. The high-pressure fan that comes with the equipment is used to blow back and clean the dust, which is not limited by the air source conditions in the usage environment. It has fewer vulnerable parts, easy maintenance, and reliable operation, overcoming the drawbacks of compressed air pulse cleaning. The anti blowing effect distance is large, and long filter bags can be used to fully utilize space and occupy a small area.
3. The use of trapezoidal flat bags has a large amplitude, and only one vibration is needed to shake off the accumulated dust, which is beneficial for improving the service life of the filter bag.
4. The dust collector automatically controls the rotation back blowing to clean the dust, and adjusts the cleaning cycle according to the inlet concentration. Compared to the timed control method, it is reasonable and reliable.
5. The dust removal equipment adopts a dust removal filter bag made of easy to clean needle punched felt filter material flat bag.

Construction of dust collector in quarry:
1. Upper box: including dust collector cover, rotating cover removal device, cleaning room, bag changing inlet, observation hole, and air outlet.
2. Medium box body: including flower board, filter bag, filter bag frame, filter bag guide, filter chamber cylinder, air inlet, and inlet door.
3. Lower box: including positioning support frame, ash hopper, star shaped ash discharge valve, and support.
4. Anti blowing dust cleaning mechanism: including rotary arm, nozzle, loop anti blowing mechanism, circulating air duct, anti blowing pipe, anti blowing machine, and rotary arm deceleration mechanism.

Working principle of dust collector in quarry:
Filtering condition - The dusty airflow enters the upper space of the filtering chamber tangentially, due to the volute shaped inlet. Large particles and aggregated dust particles spin down the ash hopper along the cylinder wall under centrifugal force. Small particle dust disperses in the gaps between the filter bags in the filtration chamber and is retained by the filter bags. Adhering to the outer layer of the filter bag, purified air passes through the filter wall and collects through the filter bag guide on the flower plate in the clean room, and is sucked out by the ventilation fan and discharged into the atmosphere_ Working condition - As the filtering condition stops, the retained dust gradually thickens and the resistance of the filter bag gradually increases. When the upper limit of the anti blowing control resistance is reached, the anti blowing machine can be manually turned on as needed, or the differential pressure transmitter can send a signal to automatically start the anti blowing machine and the anti blowing rotary arm transmission mechanism to stop the anti blowing. We can also provide supporting automatic control devices. A counter blowing airflow with sufficient momentum is blown into the filter bag inlet through the rotary arm nozzle, blocking the filtered airflow and changing the pressure conditions inside the bag, causing substantial vibration of the filter bag and shaking off accumulated dust. Rotate the arm in turns and blow back one by one. When the resistance of the filter bag drops to the lower limit, the anti blowing mechanism is manually turned off or automatically stopped. In order to save the power of the anti blowing mechanism and reduce the anti blowing air volume, the three and four circle (i.e. 144ZC-II20ZC type) bag filter is equipped with a segmented anti blowing mechanism to blow only one filter bag at a time.

Maintenance instructions for dust collectors in quarries:
All maintenance related to dust filter bags can be carried out in the clean air chamber. The detachable top cover on top of the dust collector is used for inspection and replacement of filter bags. The following terms, as maintenance procedures, must be periodically checked to promote fault free operation
1. Conduct a routine inspection of every aspect of the equipment once a day.
2. Observe the entire cleaning cycle system on a weekly basis to confirm that the cleaning cycle, cleaning mechanism, and control system are operating normally. Check the sealing condition of the door.
3. Randomly select one to two filter bags from each filtration chamber every year, analyze and predict the service life of the filter bags and the necessary replacement situations.
4. Once there is an opportunity, or at least once a year, inspect the possible dust accumulation in the clean air section of the flower plate in each filter chamber of the dust collector, the condition of the filter bag, the dust accumulation in the ash hopper, and the air leakage situation.
5. Maintenance of each component.

The dust collector in the quarry adopts a circular structure with uniform force distribution, good blast resistance, compact structure, and high-pressure fan reverse blowing for dust cleaning. It is not limited by gas source conditions and uses resistance to automatically control reverse blowing for dust cleaning to save energy and extend the use of cloth bags. It can be installed indoors in cold regions and can be installed outdoors in other regions. It can be widely used in machinery, casting, mining, smelting, building materials, grain chemical industry, etc.