An evaporative system for separating solid salt from a saline solution is provided. The system comprises conveyor belts arranged to move the saline solution and evaporate water from it, using natural solar radiation, reflected solar radiation, mechanically induced evaporation and heat storing materials, which accumulate heat during the day and release the heat during the night to allow continuous production. The system may be adapted to different saline solution sources and terrain conditions as well as to varying meteorological conditions. The conveyor belts may be interspaced by separators that remove from the saline solution each type of salt as it solidifies on the corresponding conveyor belt. Conveyor belts may further be used to deliver the solid salt or wastes back to saline solution source.