Sample heating device

A sample heating device comprising:

• a heating furnace that includes a space for housing a sample boat holding a sample to be heated and heats the sample held in the sample boat inserted into the space;
• a rail-shaped disposal rail extending in one direction in a horizontal plane so that sample boats after heating in the heating furnace are arranged and placed in a straight line;
• a disposal tray that is provided on one end side of the disposal rail and houses the sample boat pushed-out from one end of the disposal rail;
• a sample boat conveying portion that holds the sample boat after the heating in the heating furnace and places the sample boat at a placing position set at a position on the disposal rail at a distance longer than or equal to a length of the sample boat from the one end;
• and
• a sample boat push-out portion that is positioned closer to the other end side of the disposal rail than the placing position when the sample boat is placed on the disposal rail by the sample boat conveying portion and that is displaced on the disposal rail toward the one end side of the disposal rail after the sample boat is placed at the placing position to thereby slide the sample boats on the disposal rail toward the one end side.