HEALTH & SAFETY
load is introduced onto the receiving belt, ensuring that transfer designs do not impede material flow. Factors such as skirtboard width and length, as well as dust containment concerns, must be carefully addressed. A thorough evaluation of the application is essential before any recommendations can be made. Belt elevation, properly established,
is key. According to CEMA standard 575, the recommendation is for the belt to be fully transitioned with transition idlers before entry into the impact bed so that the belt is fully troughed.
BETTER BELT SUPPORT Next, proper belt support must be in place. For Richwood, that includes impact saddles and cushion arc idlers in the load zone for impact protection and a proper foundation for successful sealing. The full arc design protects the belt from typical issues found in three roll idlers, like pinch points or gaps in support. Impact saddles and cushion arc idlers are designed to match the degree of trough.
For bulk material containment,
canoe liners are put in place. This provides wear resistance for abrasive materials in the first line of defense against spillage. A secondary layer is then added with a skirting system, using either skirtboards or skirt clamps and a premium skirting rubber. All components should be designed for ease of use that facilitates well- maintained work areas. Lastly, for complete dust control,
a fully covered dust stilling system is added with multiple dust stilling chambers and dust curtains that allow the dust to “settle” before it leaves the load zone. The passive dust containment system eliminates the need for vacuums, filters, misting or spray systems or other additional equipment. The simplicity of the system
eliminates the issues of traditional methods and provides a practical, low maintenance solution to a common issue wherever there is material in motion. Implementing engineered passive dust containment systems produces a
Application specific engineered dust containment example
ripple effect of positive outcomes. Less overall maintenance in the transfer area, reduced environmental footprint, decreased regulatory issues and positive health effects for employees along with minimised concerns associated with dust-related challenges. ●
CJ Ferguson is Senior Applications Engineer at Richwood.
www.richwood.com
www.engineerlive.com
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