Fully Automatic Black Tea Production Line
Description
Custom-developed to adapt to local climatic conditions and customers’ energy consumption requirements, this fully automatic black tea production line delivers stable fermentation quality, precise drying control and high energy utilization efficiency.
I. Technical Features of the Production Line
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Washing & Air-Drying ModuleEquipped with bubble generators to tumble tea leaves thoroughly and remove surface impurities. Normal-temperature air is adopted to effectively retain the original color and intrinsic quality of tea leaves.
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Withering ModuleAccelerates moisture evaporation and activates leaf enzymes via ventilated heating & dehumidification. Controlled by PLC system, it realizes real-time monitoring, feedback and adjustment for fans, heating elements, transmission motors and detection sensors.
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Rolling ModuleSupports automatic feeding, weighing, pressurization, staged rolling and discharging. Operators may freely set rolling duration, pressure, rotation speed and other process parameters.
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Deblocking & SievingSeparates tea into oversize leaf and fine leaf. Fine leaf is conveyed directly to the fermentation chamber for oxidation; oversize leaf is accumulated, metered and sent for secondary rolling.
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Fermentation UnitConsists of fermentation chamber, electric steam generator, ultrasonic atomizer, tea elevator, internal conveying system and integrated control unit.The unit automatically adjusts equipment runtime, conveying speed, leaf thickness and other operating parameters based on fermentation duration, leaf bed thickness, temperature, humidity and oxygen concentration, building an ideal oxidation environment for black tea.
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Drying SectionIntegrated intelligent tea dryer composed of cabinet body, intelligent constant temperature control system and automatic material distributor.Insulation partitions and multi-layer chain plates are installed inside the cabinet, with high-temperature temperature & humidity probes fitted on each layer. Closed-loop quality control is realized based on hot air temperature and humidity feedback.
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Cooling & ReconditioningMulti-layer cooling & reconditioning machine fully equalizes tea moisture content after drying.
II. Applicable Capacity & Energy Supply
Suitable for single bud and one-bud-one-leaf orthodox black tea:
Fresh leaf throughput: approx. 650 kg/h; daily processing capacity: approx. 5 tons (75% initial moisture content).
- Heat supply: oil-fired hot air furnace
- Transmission power: electric drive
III. Black Tea Processing Flow
Washing & Air-Drying → Fresh Leaf Withering → Rolling → Deblocking & Sieving → Fermentation → Primary Drying → Reconditioning → Final Firing
IV. Reference Customer Case
Fully Automatic Black Tea Production Line for Xiaoguan Tea, Fengqing Dianhong Industrial Town, Yunnan Province