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aggregate crushing dust control

common types of dust control systems in quarries

common types of dust control systems in quarries

In applications such as mining and quarrying, dust is an unavoidable hazardous substance in aggregate processing. Dust control systems need to be installed to suppress dust and protect workers, the environment and processing equipment. The most common dust removal solutions include dust suppression and dust collection, both of which have different dust control systems. In this article, I will introduce the most common types of dust control systems in quarries.

The most effective way to suppress dust is wet dust suppression. The most used is the spray dust suppression system. Its dust removal principle is to combine fine dust particles and water droplets floating in the air into particle clusters and fall under the action of gravity.

The sprinkler system includes sprinklers and water pipes. The sprinkler system can be installed on the existing crushing and screening equipment. If the equipment uses sufficient water, the system can operate within a few hours.

The dry mist dust suppression system can produce a large number of water mist particles with a diameter of 1-10 microns, which can effectively adsorb the dust suspended in the air, especially the inhalable dust particles with a diameter of less than 10 microns. The water consumption is small and will not affect the subsequent process of the material.

Use advanced high-pressure pumps and ultra-fine atomizing nozzles to atomize the water into fine mist particles of 0~30um. Under the action of the fan, the fog is directed to the designated position, and the spray is covered at and above or around the dust. The dust particles are fully fused with the water mist, gradually condense into particle clusters, and quickly settle to the ground under the action of gravity.

When the dust-containing gas enters the filter medium, the dust is intercepted by the filter medium and collected and stored in a centralized manner. The most common filter dust collection equipment in quarries is a baghouse dust collector.

It has high dust removal efficiency, especially for filtering fine dust. Strong adaptability to the nature and temperature of smoke and dust. The processing air volume and equipment of the bag filter can be customized according to the scale of the quarry.

Disadvantages The processing temperature is limited by the material of the filter bag, which is not resistant to high temperatures; weak corrosion resistance, unable to handle acid and alkaline dust-containing gases, not applicable to gases containing strong adhesion or strong hygroscopic dust, structure when the processing gas volume is large Consumables take up a large area.

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