Heat treatment system

A heat treatment system comprising:

• a heat treatment furnace including an entrance and an exit, and configured to heat treat a material in a saggar while the saggar is conveyed from the entrance to the exit;
• a conveyor configured to convey the saggar that exited from the exit of the heat treatment furnace to the entrance of the heat treatment furnace;
• a recovery device disposed on a conveying path of the conveyor and configured to recover the material heat-treated in the heat treatment furnace from the saggar;
• a supply device disposed on the conveying path of the conveyor between the recovery device and the entrance, and configured to supply a non-heat-treated material to the saggar in which the material is not accommodated;
• and
• a hood covering the conveying path,
• wherein the conveying path comprises:
• a first conveying path disposed on at least a part of the conveying path between the recovery device and the supply device;
• and
• a second conveying path disposed on other part of the conveying path than the part where the first conveying path is disposed, and
• the hood is disposed over the second conveying path and is not disposed over the first conveying path;
• and
• wherein the hood comprises:
• openings defined between the first conveying path and the second conveying path;
• and
• separators disposed at the openings respectively and configured to separate a space inside the hood from a space outside the hood.