MANUFACTURING APPARATUS OF MICROPARTICLE BY SPRAY PYROLYSIS PROCESS

PROBLEM TO BE SOLVED: To provide an apparatus capable of stably manufacturing microparticles by a spray pyrolysis process, the apparatus preventing a furnace core tube from cracking and splitting caused by thermal shock or thermal distortion to improve durability of the furnace core tube.SOLUTION: In a manufacturing apparatus of microparticles, a raw material solution is sprayed into a spray pyrolysis apparatus having a drying zone and a heating zone and subjected to drying and pyrolysis. A furnace core tube of a furnace is made of ceramics and linearly divided into two or more parts in the longitudinal direction. The parting planes are tightly adhered to each other and have an angle of 45 degrees or more and 70 degrees or less to an arc tangent of the upper edge face of the furnace core tube.SELECTED DRAWING: Figure 1 【課題】炉芯管のサーマルショックや熱歪みによる亀裂、割れを防止し、炉芯管の耐久性を改善し、安定して噴霧熱分解法により微粒子を製造可能とする装置の提供。【解決手段】原料溶液を乾燥ゾーン及び加熱ゾーンを有する噴霧熱分解装置に噴霧し、乾燥及び熱分解させる微小粒子の製造装置であって、加熱炉の炉芯管が、長手方向に２以上に直線状に分割され、該分割面は圧着され、該分割面が炉芯管の上端面の弧上接線に対して４５度以上７０度以下の角度であるセラミック製炉芯管であることを特徴とする熱分解による微小粒子の製造装置。【選択図】図１