Abstract: A heat treatment system may include a heat treatment furnace; a supply device; a stack device configured to stack saggars in an up-down direction; a first conveyor configured to convey the saggars to the heat treatment furnace; an unstack device configured to unstack the stacked saggars; a recovery device; and a second conveyor configured to convey the saggars from the heat treatment furnace to the unstack device. At least one of the recovery device and the supply device may include at least a first conveyor mechanism and a second conveyor mechanism. The recovery device may further include a first recovery unit disposed on the first conveying path and a second recovery unit disposed on the second conveying path, or the supply device may further include a first supply unit disposed on the first conveying path and a second supply unit disposed on the second conveying path.

Abstract: A heat treatment system may include a heat treatment furnace configured to heat treat a material in a saggar; a conveyor configured to convey the saggar from an exit to an entrance of the heat treatment furnace; a recovery device configured to recover the material heat-treated; a supply device configured to supply a non-heat-treated material to the saggar; and a hood covering the conveying path. The conveying path may include 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. The hood may be disposed over the second conveying path and may not be disposed over the first conveying path.

Abstract: A heat treatment system may include a heat treatment furnace configured to heat treat a material in a saggar; a conveyor configured to convey the saggar from an exit to an entrance of the heat treatment furnace; a recovery apparatus configured to recover the material heat-treated from the saggar; and a supply device configured to supply a non-heat treated material to the saggar. The conveyor may include a conveyor mechanism and a drive unit configured to drive the conveyor mechanism. The recovery apparatus may comprise a recovery unit disposed at a position where the conveyor mechanism is not disposed and configured to recover the material in the saggar; a transport device configured to transport the saggar between a placement position on the conveyor mechanism and a recovery position above the recovery unit; and an inversion mechanism configured to invert the saggar at the recovery position.

Abstract: A heat treatment system may include a heat treatment furnace configured to heat treat a material in a saggar, the saggar including a saggar body and a lid; a lid removing device configured to remove the lid from the saggar; a body conveyor configured to convey the saggar body; a lid conveyor configured to convey the lid; a recovery device configured to recover the material from the saggar body; a supply device configured to supply a non-heat-treated material to the saggar body; and a lid attaching device configured to attach the lid to the saggar body. A conveying time for the lid to be conveyed from an entrance to an exit of a conveying path of the lid conveyor may be shorter than a conveying time for the saggar body to be conveyed from an entrance to an exit of a conveying path of the body conveyor.