Working principle of dust collector for asphalt mixing plant:

The dusty gas enters the bag filter through the air inlet and is filtered on the outer surface of the filter bag. The purified gas flows from the inside of the filter bag to the upper chambers and is discharged from the air outlet through a long Venturi tube. When the dust adsorbed on the outer surface of the filter bag reaches a certain value, it is controlled by the program to perform pulse blowing at regular intervals, that is, high-pressure air is sprayed towards the long Wen tube while the purified gas is blown back into the filter bag, forming a large pressure difference to clean the dust and achieve the purpose of dust removal. The resistance of the entire equipment and system is kept stable, and the back blown dust falls to the bottom of the lower box and is discharged and recovered by the screw conveyor.

The dust collector used in asphalt mixing plants is a new type of high-efficiency pulse bag filter that has been introduced with new equipment and technology from abroad and improved through digestion. It has the advantages of large air volume processing, high purification efficiency, small footprint, low filter bag wear, long service life, easy replacement of filter bags, and convenient maintenance. The dust cleaning adopts a pulse type counter current back blowing method, and its electrical control adopts a sequence controller, which has reliable performance and can be widely used in the purification and recycling of dust containing gases at room temperature and high temperature in industrial and mining enterprises such as metallurgy, chemical industry, machinery, non-ferrous casting, mining, asphalt concrete industry, cement, electricity, carbon black, grain processing, etc. In recent years, this equipment has been widely promoted and applied in various provinces and cities in China, and has replaced imports, which is well received by users.

Characteristics of dust collectors for asphalt mixing plants:

1. The dust collector used in the asphalt mixing plant adopts the pulse back blowing method, which is currently one of the most effective methods for dust cleaning in China. The equipment is divided into eighteen small chambers that are not connected to each other and are connected to a long Venturi tube. The purpose of dust cleaning is achieved by using program-controlled pulses. The structure eliminates the small Venturi tube at the top of the spray pipe and filter bag, making it simple, easy to operate and maintain.

2. Compared with other dust collectors in China, this equipment has the characteristics of large processing air volume and low system resistance, and has a wide range of applications. Purification and recovery treatment of mixed gases with dust concentration<60g/m3 at room temperature and high temperature.

3. The edge of the flower board separating the upper middle box is pressed into a certain conical hole to form a smooth contact with the filter bag, with good sealing and reducing wear between the hole edge and the filter bag.

4. The structure is simple and reasonable, with a small footprint, and can be installed indoors or outdoors. Users can choose their own model or parallel combination according to their production process and processing air volume, and can provide carbon steel or stainless steel dust collectors as needed.