According to Kangyue's research on zinc powder recovery equipment in the galvanizing industry for many years, it has achieved good results in the zinc powder recovery of hot-dip galvanized bag dust collectors , which meets long-life environmental protection, energy saving and consumption reduction, high recovery efficiency, and zinc powder recovery Good, easy maintenance requirements, and responsible for the integrity, rationality and performance of the dust bag and supporting cages within the scope of delivery.
The following two are dust collectors for the research of zinc powder recovery in the hot-dip galvanizing industry.
1. Hot-dip galvanized inner bag dust collector
Working principle of dust collector
滤袋外表面。 The gas purification method of the PBMC pulse tube spray offline ash dust remover is an external filter type. The dust-containing gas enters the filter room of each unit from the air intake system. Due to the design, the vertical distance between the bottom of the bag and the upper opening of the air inlet has a reasonable reasonable headroom. The airflow is evenly distributed in the entire filtering room under the influence of the air deflector, windshield and distribution screen; the particulate dust in the dust-containing gas is directly separated into the ash hopper after being separated by natural sedimentation, and the remaining dust enters the airflow through the distribution screen The filter area of the box is adsorbed on the outer surface of the filter bag . The filtered clean gas passes through the filter bag and is discharged through the upper box and the exhaust pipe.
The filter bag uses compressed air to spray and clean the ash. The ash cleaning mechanism consists of an off-line valve, an air bag, a blow pipe and an electromagnetic pulse control valve. 脉冲阀并与压缩空气气包相通。 A spray pipe is arranged on the top of the outlet of each row of filter bags in the filter room. The lower side of the spray pipe is directly opposite the center of the filter bag. A spray valve is provided on each spray pipe and communicates with the compressed air bag. 电磁阀打开脉冲阀，压缩空气经喷口喷向滤袋，与其引射的周围气体一起射入滤袋内部，引发滤袋全面抖动并形成由里向外的反吹气流作用，_附着在滤袋外表面的粉尘，达到清灰的目的。 During ash cleaning, the solenoid valve opens the pulse valve, compressed air is sprayed to the filter bag through the nozzle, and the surrounding gas injected by it is injected into the inside of the filter bag, causing the filter bag to fully shake and form a back blowing air flow from the inside to the outside. The dust attached to the outer surface of the filter bag can achieve the purpose of dust removal.
The control of the dust collector (including dust removal control, etc.) is controlled by PLC. 除尘系统的控制可实行自动化无人值守控制，并向工厂大系统反馈信息、接受工厂大系统远程控制。 The control of the entire dust removal system can implement automatic unattended control, and feed back information to the plant's large system and accept remote control of the plant's large system.
2.Introduction of hot-dip galvanized zinc pot flue gas precipitator