What
is 3-in-1
-
Tray
circuit for initial drying of dhool
-
Grid
plate for fluidisation & final Drying
-
Vibrator
System for Vibrating the grid plate for effective
fluidisation.
FEATURES
To
Optimise production and at the same time maintain the quality
of liquor, this 3-in-1 COMBI DRYER has been developed.
In
conventional Tray Dryers it is not possible to get higher
outputs. On the other hand, a fluid bed drier does give higher
output but at the cost of case hardening of the Dhool as it is
subjected to high temperature immediately over the Grid Plate.
In
this 3-in-1 COMBI DRYER the Tea Dhool is fed to the tray type
Conveyer which delivers it on the Trays on the top circuit and
by leaf Back Process, the Dhool is carried inside the Top
Circuit. The Dhool subsequently drops on Fluid Bed Grid Plate
having Vibratory motion. By the time it falls onto the grid
plate the Dhool has undergone in a smooth way and then is
subjected to Hot Air. The Hot Air is coming from the bottom
through the Grid Plate and drying up the final tea and it it
loosing its temperature and it is going through 2nd tray
circuit and then through a top tray circuit. Hence the tea is
not getting Super Heated Air.
However
a by-pass arrangement has been done from the bottom to take
the Super Heated Air into the middle between the 2nd circuit
and the top circuit to mix with the moist leftover air to
bring desired level of Hot Air for initial drying of the Dhool.
It has been found that the maximum optimum Temperature is
230°F on the Bottom Ducting and the exhaust temperature
beyond the Top Circuit is 100° to 110°F. This is resulting
in Optimum utilisation for hot air for the Drying of the tea
leaves and this increases the Fuel Efficiency and Quality of
tea for Feed of the "Dhool" and Discharge of Made
Tea is on the Front Side.
|
FEED
CONVEYOR
|
DRYER
EXPOSING THE TRAY AND VIBRATOR
|
|
BACK SIDE OF DRYER WITH HOT AIR FAN
 |
DRIVE
ARRANGEMENT
|
Technical
Specifications
| |
MARK
I |
MARK
II |
| Size |
4ft
x
24ft
6ftx24ft |
| Capacity
Made Tea |
200kg./hr
300-350kg/hr |
| Installed
Power |
18kw
20kw |
| Fuel
Consumption |
0.18
to 0.20 ltr./kg |
| Type
of Fuel |
Suitable
for oil, Gas, Coal and Wood |
