PROBLEM TO BE SOLVED: To provide a green tea production line using a powdered green tea furnace where throughput per unit time is increased to achieve mass production, further, drying efficiency is improved, and production cost is reduced without damaging quality, and a hybrid line provided with a powdered green tea production line therein.SOLUTION: Provided is a green tea production line comprising: an oxidative enzyme deactivation step where the oxidative enzyme of tea leaves to be charged is deactivated a cooling step where the tea leaves are cooled while being continuously carried by a belt conveyer a pressure-striking step where the tea leaves are subjected to pressure-striking a drying step where the tea leaves are placed on a netlike belt conveyer and are dried a CTC step where, through a rotor van step and a woody stem selection step in which a stem part and a leaf part are selected, the tea leaves are made into desired grain size shape and a finish drying step. The drying step uses a powdered green tea furnace including: a drying chamber one step belt conveyer and a hot wind generation apparatus arranged between upper stage and lower stage belts and generating hot wind from the lower part of the upper stage belt, and the tea leaves are conveyed in a state of being laminated to a fixed thickness without gaps on the whole of the surface of the upper stage belt.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】単位時間当たりの処理量を増大させて大量生産を可能にすると共に、乾燥効率を向上させて、品質を損なわず生産コストを低減した碾茶炉を用いた緑茶製造ラインおよびこれに碾茶製造ラインを備えたハイブリッドラインを提供する。【解決手段】投入された茶葉の酸化酵素を失活させる酸化酵素失活工程と、茶葉をベルトコンベアで連続的に搬送する間に冷却する冷却工程と、茶葉を打圧処理する打圧工程と、茶葉を網状のベルトコンベア上に載せて乾燥を行う乾燥工程と、ローターバン工程、茎部と葉部とが選別される木茎選別工程を経て、茶葉を所望の粒度形状にするCTC工程と、仕上げ乾燥工程を備え、乾燥工程が、乾燥室と、一段のベルトコンベヤと、上段と下段のベルト間に配設され、上段のベルトの下方から熱風を発生させる熱風発生装置とを備え、茶葉が上段のベルトの表面全体にすきまなく一定の厚さに積層された状態で搬送される碾茶炉を用いる。【選択図】図1
