What are the Dust Sources in Mining Enterprises?

Particulate matter in mining enterprises is basically production dust, mainly originating from crushing and grinding systems as well as secondary dust resuspension.

 (1) Dust from crushing and grinding systems: 

These systems are key dust sources in mining enterprises, producing high-intensity dust with fine particle sizes. 

The main causes of dust generation include: air flow induced by material movement leading to dust entrainment; air in ore gaps being violently extruded during crushing and grinding, 

generating shear and compression effects, and carrying dust out from the feed port at high speed to cause pollution. 

(2) Secondary dust resuspension: 

Such dust may be mine dust settled on the ground by wet spraying, which is lifted by ventilation or personnel movement after liquid evaporation, 

or it may be generated by rapping and cleaning of dust collectors.

Application of Baghouse Dust Collectors in Mining Enterprises

In baghouse dust collectors, dust-laden gas passes through the filter cloth in a single direction, with dust particles trapped on the air inlet side of the filter media and clean gas flowing out from the other side. 

They have strong adaptability to capturing dust of different properties, flexible air volume handling capacity, a simple structure and stable operation.

For crushing systems in mining enterprises, baghouse dust collectors can be equipped with semi-enclosed collection devices at dust sources, and a reasonably configured pneumatic conveying pipe network system

 can ensure that the emission concentration of dust-laden gas meets national standards. When the dust particles generated during crushing have recycling value, 

the dust cleaning port of the baghouse dust collector can be connected to the feeding hopper of the previous process via a belt, which reduces dust emissions while improving economic benefits.

Performance Characteristics of Baghouse Dust Collectors

They feature high purification efficiency of up to 99% for gas containing dust particles at the micron or submicron level, and can handle air volumes ranging from 

several hundred cubic meters per hour to hundreds of thousands of cubic meters per hour. They can be used as small units directly installed indoors or on-site, 

or fabricated into large dust removal chambers. Widely applied in mining, metallurgy, chemical engineering and machinery industries, they can also be used for dust collection of 

waste gas from civil boilers and other equipment.

The entire process of sand and gravel aggregate mining, crushing, screening and sand making in the mining industry is carried out in the open air, and the generated dust directly pollutes the atmosphere.

 It is imperative to control dust emissions from the source to prevent "small dust" from becoming a "big problem".