PROBLEM TO BE SOLVED: To provide a rubbing and drying machine which requires no minute settings and allows an operator skill not to seriously affect the quality of tea products, while conventional drying by heated air which imparts the similar thermal energy to the high-temperature part and the low-temperature part of tea leaves easily results in nonuniform drying, requiring careful attention to hot blast temperature, air flow, rubbing hand spring pressure, main shaft rotation speed, and the like.SOLUTION: The rubbing and drying machine for producing tea includes a rubbing and drying barrel having hot blast supply means and super heated steam supply means, so that both the hot blast and the super heated steam are supplied to dry tea leaves.COPYRIGHT: (C)2014,JPO&INPIT【課題】従来は、加熱空気による乾燥であるため、茶葉の高温部も低温部も同様な熱エネルギーを受け、乾燥具合が不均一となりやすく、熱風温度、風量、揉み手バネ圧、主軸回転数等、細心の注意が必要となる。そして、細かい設定が必要となるため、オペレータのスキルが茶製品の品質に大きな影響を与える。【解決手段】製茶揉乾機の揉乾胴に、熱風の供給手段と、過熱蒸気の供給手段とを設け、熱風と過熱蒸気の両方を供給して、茶葉を乾燥する製茶揉乾機。【選択図】図1
