Chapter 4 – RCS dust control for specific activities
Workstation: Mixing
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Close it off
Mixer lids and other access points (covers, access doors, etc.) should be sealed and securely closed before starting the mixer to prevent the escape of dust.
Extraction
Extraction systems should be designed so as not to draw excessive amounts of raw materials from the mixer. When producing a dry mix, consider arrangements for a dust-free discharge of the mixed product.
Local exhaust points
The mixer charging point should be enclosed and provided with a local exhaust ventilation. Or, local exhaust ventilation can be supplied at points inside lid or rear of the mixer casing, in order to ensure a net influx of air through the mixer.
