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Dust Suppression Hopper: reduces dust liberation during bulk loading: Two case studies.
J F Colinet1, A B Cecala1, J R Patts1
1National Institute for Occupational Safety and Health, Pittsburgh, PA, USA.
Mining Engineering
|November 6, 2018
Summary
The Dust Suppression Hopper (DSH) significantly reduces airborne respirable dust during industrial sand loading. This technology can decrease dust exposure for workers by up to 88%.
Area of Science:
- Occupational Health and Safety
- Industrial Hygiene
- Environmental Engineering
Background:
- Industrial sand processing involves loading finished products into various containers.
- Dust liberation during loading can expose workers to respirable crystalline silica.
- Control technologies are crucial for mitigating dust exposure in industrial settings.
Purpose of the Study:
- To evaluate the effectiveness of the Dust Suppression Hopper (DSH) in reducing dust during bulk loading of industrial sand.
- To assess the DSH technology's performance in real-world industrial sand processing plants.
Main Methods:
- The U.S. National Institute for Occupational Safety and Health (NIOSH) conducted case studies at two industrial sand processing facilities.
- The Dust Suppression Hopper (DSH) technology was implemented and monitored during bulk loading operations into trucks and trains.
Main Results:
- The DSH technology demonstrated a significant reduction in airborne respirable dust levels.
- Dust reduction percentages ranged from 39% to 88%, varying with the size of the product being loaded.
Conclusions:
- The Dust Suppression Hopper (DSH) is an effective control technology for reducing dust exposure during industrial sand loading.
- Implementing the DSH can lead to substantial improvements in worker safety and environmental conditions at sand processing plants.
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