PROBLEM TO BE SOLVED: To provide a continuous type heat treatment device capable of maintaining a heat treatment atmosphere inside a heat treatment chamber even using a non-sealed type heat treatment chamber and accommodating a request of miniaturization and a reduction in cost.SOLUTION: The heating treatment chamber 1 is divided into a lower side space 27 and an upper side space 28 by a partition part while communicating both to each other through a suction port 30. The lower side space 27 is a space for transporting a processing object while heating the processing object by a heating medium and the upper side space 28 is a heating space for sucking the heating medium of the lower side space 27 to re-heat the heating medium and sending then the heating medium to the lower side space 27. A heating medium jetting nozzle 17 is disposed in at least an inlet 2 and an outlet 3 of the lower side space 27 so that jetting ports 17a, 17a thereof face each other, and the re-heated medium that is expanded in volume by being re-heated in the upper side space 28 is jetted inward of the heating treatment chamber 1 together with the heating medium that is jetted from the jetting port 17a of the heating medium jetting nozzle 17.COPYRIGHT: (C)2014,JPO&INPIT【課題】非密閉状の加熱処理室を使用しつつも、加熱処理室内の加熱処理雰囲気を維持することができ、かつコンパクト化及び低価格化の要請に対応し得る連続式加熱処理装置を提供する。【解決手段】加熱処理室1を仕切り部によって下側空間27と上側空間28に二分するとともに、吸い込み口30を介して連通しており、下側空間27は加熱媒体によって処理対象物を加熱処理しつつ搬送する空間で、上側空間28は下側空間27の加熱媒体を吸い上げて再加熱したのち、下側空間27へと送り出す加熱空間で、加熱媒体噴射ノズル17を、下側空間27の少なくとも入口2と出口3にてその噴射口17a,17aが対向するように配設し、上側空間28によって再加熱されて体積膨張した再加熱媒体が、加熱媒体噴射ノズル17の噴射口17aから噴射される加熱媒体とともに、加熱処理室1の内方へと噴射される。【選択図】図3
