• Mixing vessels can be laid out in a straight line, in pairs or staggered.• In evaporators using barometric leg type condensers, barometric legshould be at least 10 mm from the vessel base. This is usually situated onthe ground floor. For multiple effect evaporators, place the individual effectsas close as possible to minimize vapor lines. Vapor liquid separator isaccommodated without increasing the distance between effects. The layoutrequirements for crystallizers are similar to those for evaporators.• Furnaces should be located at least 15 m away from other equipment.Ample room need to be provided at the firing front for the operation of theburner and burner control panel
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