BUCHI Inert Loop B-295 - Manual (Page 44)

5 Putting into operation
44 B-290 Operation Manual, Version I
NOTE
See section 7.6 for information about the cleaning procedure of the Dehumidifier B-296.
5 .14 Installing the Spray Chilling Accessory
1
2
3
4
5
6
• Mount the complete bath b on the top of the
Mini Spray Dryer B-290.
• Use the knurled screws to fix the spray chilling
accessory on the Mini Spray Dryer B-290
cover panel. Plug in the heater c of the spray
chilling accessory instead of the standard
heater of the Mini Spray Dryer B-290.
• Connect the long temperature sensor d
instead of the standard outlet temperature
sensor to the electrical plug and put the
temperature sensor into the holder on top of
the heating bath.
a Product feed vessel
b Heating bath
c Heater d Temperature sensor
e Capillary inlet
f Capillary outlet
Fig. 5.25: Spray Chilling Accessory
NOTE
The nozzle tip 1.4 mm with nozzle cap 2.0 mm are recommended to increase the droplet size and if
clogging occurs with the standard 0.7 mm nozzle. The resulting particle size is typically in the order
of the droplet size.
Open suction mode installation with the Dehumidifier B-296 to pre-cool the inlet air is recommended.
A slight negative pressure in the spray chamber forces the melted sample feed to enter the nozzle
after opening the feed valve.
5
1
3
4
2
7
4
4
9
5
4 8
7
4
4
10
11