Coolers and heat recovery
In mineral processing plant , the temperatures of discharged products from thermal processing are high. In order to lower that temperature, or to recover some heat, or both, coolers are used. Most of the coolers are inversely working dryers, however, with a higher capacity per installed unit. Coolers of rotating drum type Normally there are three basic designs: • Air Swept Coolers built similar as a counter flow direct heat rotary dryer, where hot gasses are replaced with ambient air • Water cooled shell coolers where the drum shell is cooled with water or is submerged in a pool of water. • Water tube coolers having the same design as a steam tube dryer, where the steam is replaced with cool water Coolers of fluid bed type The principles of fluid bed can be used also for cooling purposes. In this case the fluid bed is cooled by internal water pipes. Ash Cooling Circulating Fluidized Bed Boiler Coolers and heat recovery Thermal processing is a question o...