PROBLEM TO BE SOLVED: To provide a heating device for fluid material, capable of moderating or eliminating temperature variations caused by heating of the fluid material, suppressing burning dry of a solid material to a heating part, and significantly prolonging continuous operation time by suppressing the formation of scorch dirt.SOLUTION: The heating device of the fluid material in which it is heated at the heating part 2 installed at one part of a flow passage 1, while moving continuously in the flow passage 1, is equipped with a circulation flow passage 3, which is bifurcated on a downstream side of the heating part 2 and merged on an upstream side of the heating part 2, and a circulation pump 4, which takes in a part of the fluid material that has passed the heating part 2 into the circulation flow passage 3 and recirculates that part.COPYRIGHT: (C)2009,JPO&INPIT【課題】流動物の加熱で生じる温度ムラを緩和、解消するとともに、加熱部への固形物の付着を抑制し、焦げ付きの発生を抑えて連続運転時間を大幅に延長することができる流動物の加熱装置を提供すること。【解決手段】流動物を流路1内で連続的に移動させながら、流路1の一部に設けた加熱部2で加熱するようにした流動物の加熱装置において、加熱部2の下流側で分岐するとともに加熱部2の上流側に合流する循環流路3と、加熱部2を通過した流動物の一部を循環流路3に取り込んで再循環させる循環ポンプ4とを備えるようにする。【選択図】図1
