Horizontal pyrolysis furnace

A horizontal pyrolysis furnace comprising:

• a kiln;
• and
• two barrels being respectively a processing barrel rotatably disposed in the kiln and a takeover barrel detachably connected with the processing barrel;
• wherein
• each one of the two barrels comprises a gate assembly and at least one spiral guiding plate;
• the gate assembly of the processing barrel is mounted on one of two ends of the processing barrel, and said end and the gate assembly of the processing barrel extends out from the kiln;
• the gate assembly of each one of the two barrels is detachably connected to each other, wherein the two barrels rotate synchronously when the two barrels are connected to each other via the gate assembly of each one of the two barrels;
• the at least one spiral guiding plate is fixed on an inner surface of one of the two barrels, and the spiral guiding plates of the two barrels have an identical helical direction;
• and
• the gate assembly of each one of the two barrels comprises
• a tube body communicating with an inner space of the respective barrel to which the gate assembly comprising the tube body belongs;
• and
• a gate transversely sliding in the tube body, wherein the gate prevents communication between two spaces beside the gate when the gate is at a closed position.