DDF large bag back-blowing bag dust collector

Working principle of DDF large back-blowing bag dust collector:

Under the action of negative pressure,dust-laden gas enters the lower ash hopper from the air inlet pipe.A baffle is provided on the front of the air inlet.Coarser dust falls into the ash hopper by impact and gravity.Fine dust particles are filtered by the filter bag and adsorbed on the inner wall of the filter bag.The purified gas passes through the bag filter chamber,through the switching valve at the top of the equipment,and is sucked into the fan through the exhaust pipe,and then discharged into the atmosphere through the exhaust pipe.

When the dust attached to the filter bag continues to increase and the resistance rises to the specified value,the dust cleaning begins.The dust cleaning method of the equipment relies on the single-chamber back-blowing method.When back-blowing,the reversing valve is used to close the exhaust pipe,open the back-blowing pipe,and cut off the exhaust of the single chamber.Because the air inlet pipes of each room of the equipment are connected and are all in a negative pressure state,the negative pressure suction effect of the adjacent room is caused.The airflow is sucked into the filter bag chamber through the back-blowing air pipe,and then passes through the filter bag.The airflow enters the inner side from the outside of the filter bag,and is sucked into the adjacent chamber through the ash hopper and the air inlet pipe of the chamber and discharged.At this time,the filter bag is deflated.The accumulated dust inside the filter bag is then shaken off to the dust resistance drop hopper,completing the cleaning of the single chamber.The other chambers are cleaned in the same order under the control of the cleaning actuator.When the value is reached,the cleaning stops.

Scope of application of DDF large back-blowing bag dust collector:

DDF large back-blowing bag dust collector is widely used in the purification and recovery of smoke generated by smelting,crushing,screening and combustion in steel mills,smelters,cement plants,carbon black plants,power stations and other enterprises.It is a device that protects the physical and mental health of operators and people,the growth of crops,the wear of mechanical equipment,the pollution of the social environment and the recycling of useful dust to reduce costs.

Structural features of DDF large back-blowing bag dust collector:

1.When the dust attached to the filter bag continues to increase and the resistance rises to a specified value,cleaning begins.

2.The cleaning method of DDF large-scale back-blowing bag dust collector relies on the back-blowing method of a single chamber.When back-blowing,the reversing valve is used to close the exhaust pipe,open the back-blowing pipe,and cut off the exhaust of the single chamber.

3.Because the air inlet pipes of each room of the equipment are connected and are in a negative pressure state,the air flow is sucked into the filter bag chamber through the back-blowing pipe due to the negative pressure suction of the adjacent room.The air flow enters the inner side from the outside of the filter bag,and is sucked into the adjacent room through the ash hopper and the air inlet pipe of the room and discharged.At this time,the filter bag is deflated.

4.The accumulated dust inside the filter bag is then shaken off and settled in the settling ash hopper,completing the cleaning of the single chamber.The remaining chambers are cleaned in the same order under the control of the cleaning actuator.When the value is reached,the cleaning stops.