Fig. 16 Operation of a Waelz kiln for recycling zinc from EAF dust More

Fig. 17 Tetronics plasma treatment plant for recycling of zinc from EAF dust More

Fig. 18 The HRD flame reactor gas-fired process for zinc recycling from EAF dust. Source: Ref 56 More

Fig. 7 Elkem A/S process for recovering gallium from aluminum smelter flue dust More

Fig. 1 Example of dust generation during powder handling More

Fig. 2 Example of a dust explosion. Courtesy of U.S. Chemical Safety and Hazard Investigation Board More

Fig. 3 Dust explosion pentagon More

Fig. 1 The red dust shown from two views on the dark barrel exterior of this black powder replica rifle was the result of residue in the exhaust and implies that far worse corrosion is probably present on the interior surface. Courtesy of Daniel Sullivan More

Fig. 5 Respirable dust in the work area of a plant for manufacturing PM parts Source: Ref 1 More

Fig. 2 Dust concentration and mean opacity readings measured in a pilot aluminum atomizer More

Fig. 11 Four methods of dust and fume control in electric furnaces. (a) Prepollution control ventilation for dust and fume removal. (b) Direct furnace dust and fume collection (both front view and top view are shown). (c) Total furnace hood for fume and dust collection. (d) Canopy hood More

Fig. 1 Facsimile of a note on zinc-dust paint by Mallet. Source: Ref 1 More

Fig. 9 Proper versus improper mixing of zinc-dust pigment. Courtesy of KTA-Tator, Inc. More

Fig. 11 Relative porosity of zinc-rich binders. The blue spheres are zinc-dust pigment particles, and red is the inorganic or organic binder. More

Fig. 5 Dust-collection equipment is commonly used to provide dilution ventilation for dusts generated in field abrasive-blasting containments. Dilution ventilation mixes contaminants with mechanically provided fresh air in the work area to reduce the concentration of airborne contaminants. More

Fig. 6 Erosion of a rotary valve handling dust from a cyclone. The wear plates in the valve show some material loss, but the major damage is to the casing. Gaps between the casing and the valve allowed leakage of high-velocity air with entrained dust. More

Fig. 5 Effect of dust particle size on the wear of engine piston rings lubricated by oils of three different viscosities More

Fig. 3 Effect of dust particle size on the wear of engine piston rings lubricated by oils of three different viscosities More

Fig. 10 Entrainment and ejection of dust during powder free fall More

Fig. 15 Ingredients for flash fire and dust explosion More