TECHNICAL SPECIFICATIONS
1 & 3- Air network
- Linear filter
- Expansion valve
- Adjusting needle gate
- Two air flow rate measurement – small and large scale
- Air exhausting filter
- PVC expansion valve 0-3 bar (45 psi) with 1 upstream filter
2- Air drier and disoiler
- Drying by adsorption
- Cartridge of aluminum with activated aluminum
- cartridge - silicagel
4- Air heater
- Power 2000 W to 150 °C
- Minimal flow rate 120 kg/h
- Adjustable safety thermostat
- Stainless steel heating elements
5- Testing tank
- Borosilicate glass or 304 L stainless steel
- Ř 300 mm
- Capacity of the product: 5 L
- Air distribution chamber on bellowed part
- Air distributor
- Easy opening
6- Differential manometer
- Measurement of the pressure losses between the inlet and the outlet of
the fluidization tank
7- Damming filter for particles
8- Solid-gas separating cyclone
- Borosilicate glass |
9- Air compressor (option)
- Without oil
- Capacity 10 L
- 48 L/ min at 7 bar (100 psi)
- 270 W
Instruments
- Measurement of the pressure in the tank – adjustable in height
- Measurement of the temperatures and the air humidity at the inlet and
outlet of the tank
- Adjustment of the temperature at the outlet of the heating element as a
function of its power
- 4 measurements of relative humidity at the inlets and outlets of the
heating element and the tank
- PID regulator for the air heating
- 1 PT 100 probe at the outlet of the heater
RUNNING PRINCIPLE
- After an expansion of the compressed air 1, the air is dried across a
line cartridge 2 in order to improve future drying
- Then the air is directed into an air heater 4: the outlet temperature is
adjusted and the inlet and outlet humidity are controlled
- The air comes (hot and dried) into the belt 5, it fluidizes the humid
aluminum and dries it
- The head losses as well as the inlet and outlet humidity of the tank 5
are controlled
- The air leaves cooled and runs into a cyclone in order to return to the
atmosphere, without dust
- With all the transducers of the circuit, a heat and mass balance can be
done, the humid air diagram will be used, the efficiency of the drying
chamber will be computed… |
