how they work & how they are applied
In simple terms, dirty air is sucked in and clean air distributed on the worksite. There is a heavy need for dust collection solutions in the tunnelling,mining and civil construction.
dirty air in > clean air out
Air is drawn through the dirty air intake by the centrifugal fan, initiating the filtration process. Larger dust particles are separated from the airstream as they settle through the drop-out box. Dust and fumes are subsequently captured on the filters, forming a cake on the surface as air passes through the filter house. The reverse pulse filter cleaning system ensures the effective maintenance of the filters. Discharged dust particles are expelled from the system via the augers and rotary valves. An integrated velocity probe continuously monitors airspeed and collaborates with the variable speed drive (VSD) to adjust the centrifugal fan's operation, ensuring consistent air volume. The clean air is exhausted from the system with a filtration efficiency of 99.99% at 0.067 microns.
SILICA OR SILICON DIOXIDE EXPOSURE.
Silica, a common mineral in rocks and soils, poses serious health risks to construction workers. Prolonged or high exposure to respirable crystalline silica (RCS) can cause lung cancer, silicosis, COPD, and other respiratory illnesses, with acute silicosis possible under extreme exposure. New regulations are halving workplace exposure limits (WEL) for RCS from 0.1 mg/m³ to 0.05 mg/m³, aligning standards with asbestos. In high-risk environments like tunneling, effective controls such as dust collectors and ventilation systems are essential to protect workers and ensure compliance.