使用混合尘埃控制系统减少尘埃和可呼吸的晶体在输送机附近
David A Parks1, Grant W King2, B David Koski1
1National Institute for Occupational Safety and Health, Spokane Mining Research Division, Spokane, WA, USA.
Mining, metallurgy & exploration
|January 9, 2025
概括
一个新的混合系统有效地控制了采矿业务中的逃尘排放. 通过将被动沉积尘埃,活性过和喷雾表面活性剂相结合,可以显著减少93%的空气中可呼吸尘埃.
科学领域:
- 职业健康和安全问题 职业健康和安全问题
- 环境工程 环境工程
- 采矿工程 采矿工程 采矿工程
背景情况:
- 在采矿和建筑等行业中,职业接触可呼吸灰尘和晶体二氧化对健康构成重大风险.
- 在户外采矿操作中,控制逃尘排放对于工人安全和环境保护至关重要.
研究的目的:
- 开发和评估一个原型工程控制系统,以减少户外采矿场的逃尘排放.
- 评估混合防尘系统的有效性,该系统结合了被动,主动和喷雾表面活性剂的方法.
主要方法:
- 设计了一种混合防尘系统,集成了被动防尘,主动过和喷雾表面活性剂抑制.
- 该系统安装在一个聚合物生产设施中,用于控制来自形破碎机和带式输送机的灰尘.
- 在系统安装之前,安装期间和安装后,收集了该区域空气中可呼吸灰尘的测量结果.
主要成果:
- 仅通过被动对照,在短时间内,可呼吸的尘埃减少了37%.
- 完全混合动力系统实现了空气中可呼吸尘埃度显著减少93% (p < 0.0001).
- 有效的防尘被证明是使用最小的水量,适合远程采矿.
结论:
- 开发的混合系统在控制采矿环境中的逃尘排放方面非常有效.
- 将主动和被动防尘策略与喷雾表面活性剂相结合,提供了一个强大的解决方案.
- 这种概念验证突出了改善采矿空气质量和工人安全的可行方法.
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