Finisher
Evaporators
Another problem that today's processors may face is the inability of their present
evaporator systems to concentrate their product to a high enough final concentration
level. In some systems this could be accomplished by reducing the amount of
feed to the evaporator. This allows the evaporator to do the same amount of
water evaporation and give a final concentrate of the desired concentration.
However, this solution reduces the maximum operating capacity of the evaporator
system.
A solution to this situation is to install a C. E. Rogers TVR Finisher system.
This will allow for the same amount of product to be processed (in some case
more) through the existing evaporator. This concentrate then is fed to the TVR
Finisher, which processes it to the desired final concentration. The result
is increased evaporation capacity which can allow the dryer to operate more
efficiently at its designed capacity.
A single effect TVR finisher can be installed as an addition to an existing
evaporator system or as an integral part of a new MVR or TVR evaporator system.
In either case, the system is designed to meet specific customer needs in the
most efficient and economical way possible.
EXAMPLE: A processor has 86,000 lb/hr of sweet whey to process.
The concentrate is then spray dried. Their existing evaporator system can only
concentrate the whey to 45% TS. The 45% concentrate is then dried but not as
efficiently as if were at 55% TS. For the present evaporator to concentrate
to 55% TS, the infeed to the evaporator would have to be decreased by 2,500
lb/hr. After a 20-hour daily run, this would decrease through put by 50,000
lbs of whey.
To solve this problem, a C. E. Rogers Company TVR finisher system was installed.
The customer was able to run the existing evaporator at full capacity - 86,000
lb/hr of whey from 6% TS to 45% TS, then feed the finisher with 11,500 lb/hr
at 45% TS and concentrate to a final concentration of 55% TS.
This C. E. Rogers finisher allowed this processor to process all of their daily
whey and feed the spray dryer with high enough solids to dry as efficiently
and economically as possible.
