Sealing system for a machine for thermal treatment of bulk material

A machine for thermal treatment of bulk material, comprising:

• a stationary furnace which presents a support structure, and
• a plurality of pallet cars traveling through the furnace along a traveling direction, wherein a series of pallet cars of said plurality of pallet cars together define, at lateral sides thereof, a common engagement surface which extends through the furnace along the traveling direction,
• wherein the support structure of the furnace and the common engagement surface of the series of pallet cars of the plurality of pallet cars define a gap therebetween, said gap having a gap length along the traveling direction, the machine further comprising:
• a first sealing system comprising:
• one or more drop bars distributed after each other along the traveling direction;
• wherein each drop bar of the one or more drop bars includes a brush arranged on the drop bar such that the brush is configured to be in engagement with the common engagement surface such that the one or more drop bars covers the gap over at least parts of the gap length,
• wherein the machine further comprises a second sealing system connected to the support structure of the furnace and arranged along the traveling direction, the second sealing system being arranged to be in engagement with the common engagement surface so as to cover the gap over at least parts of the gap length, and wherein the second sealing system is arranged at a spaced distance from the first sealing system such that an elongate cavity is formed therebetween.