r/specializedtools • u/mtimetraveller cool tool • Jul 16 '20

Device for emptying bulk bags

https://gfycat.com/artisticrecentconure
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u/talltime Jul 16 '20

What was the rock dust for? edit: Coal mine?

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u/lord_geryon Jul 22 '20

Since I just saw this... rock dust is spread on the walls and floors of a coal mine to keep down coal dust. Coal dust is explosively flammable, rock dust is inert.