Abstract: Furnace for melting inorganic salts, comprising a container, at least one inlet area for solid inorganic salts, at least one outlet area for molten inorganic salts and at least one heat exchanger tube or coil. Each heat exchanger tube includes an inlet section connected to the outer side wall of the container, a spiral section substantially along the inner side walls of the container defining an internal space, with this spiral section arranged in a substantially horizontal plane, and an outlet section which is substantially vertical and goes downwards towards the bottom area or upwards towards the top area of the container. This furnace provides better safety and performance than previously known furnaces.

Abstract: Furnace for melting inorganic salts, comprising a container (1), at least one inlet area (2) for solid inorganic salts, at least one outlet area (3) for molten inorganic salts and at least one heat exchanger tube (5) or coil. Each heat exchanger tube (5) includes an inlet section (5a) connected to the outer side wall of the container (1), a spiral section (5b) substantially along the inner side walls of the container (1) defining an internal space (6), with this spiral section (5b) arranged in a substantially horizontal plane, and an outlet section (5c) which is substantially vertical and goes downwards towards the bottom area or upwards towards the top area of the container (1). This furnace provides better safety and performance than previously known furnaces.