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| Regulated Feeding Unit (Micro Controller Based Gravimetric Weigh Feeder) |
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Quality of the made tea is dependent on various factors like correct withering, precise preconditioning of leaf in Supervane (Rotorvane), desired level of sizing, maceration & shaping in CTC, correct chemical reactions during fermentation and uniformity of the transfer during drying. All these can only be achieved to the required level, if the processing of withered leaves in the Supervane can be ensured to take place at a uniform rate maintaining correct pressure, which would automatically balance the productivity of all the machines from the Supervane downstream up to the Sorting section.
Feeding of withered leaves to the Supervane is normally done manually. In this method, it is never possible to maintain uniform pressure to get uniform cutting & crushing, as feed rate has been observed to vary typically between –50% to even more than +200% of the desired rate during manual feeding. Steelsworth RFU is designed to deliver a uniform discharge rate of withered leaf within +/- 5% of set rate at the Supervane input irrespective of feed irregularity by the operator at the feed end. The system consists of a controller and a conveyor belt passing over a weighing zone. Withered leaf is fed at the feeding zone and travels to the discharge zone at the other end over the conveyor belt. The controller senses the weight of the leaves as the conveyor belt passes over the weighing zone and adjusts the speed of the belt accordingly, so that the discharge rate is maintained to its pre-set value, irrespective of the feed rate at the other end. |
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| Salient Features |
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- Maintains a continuous uniform discharge rate within +/- 5% variation in spite of irregular feed varying
between –50% to even more than +200% of the desired feed rate.
- Apart from feed control, it also totalizes the mass delivered on real time basis with accuracy within +/- 5%.
- Online display of total mass delivered (kgs.), total time of operation, present and cumulative feed rate.
- High performance micro-controller based design for better accuracy.
- Rugged design to withstand harsh factory conditions.
- Elaborate self-diagnostics for ease of troubleshooting of the system.
- Well-defined calibration procedure for consistent operation.
- Specially designed power supply to withstand power fluctuations from 150V AC to 280V AC (220V AC normal).
- Built-in restoration of data in case of power failure.
- Capacity of the equipment may vary from 500 kgs. to 2000 kgs. withered leaf per hour depending on the requirement.
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