398
A. V. Ivaniia et al.
Fig. 1 The scheme of the laboratory vortex granulator unit: 1—gas blower; 2—heater; 3—vortex
granulator; 4—container for granules; 5—waste gas cleaning stage; 6—container for preparation of
humidifier; 7—container of finished granules; 8—automation device for measuring the air flow; 9—
automation device for measuring the temperature of air; 10—automation device for measuring the
temperature of layer; 11—automation device for measuring the humidifier flow; 12—automation
device for measuring the temperature of humidifier
of the carbon film on the granule surface—Carbon evaporation head CA7625 and
SC7620 high resolution, manual Sputter Coater).
2 The Effect of the Humidification Intensity
on the Nanoporous Structure of PAN Granules
It is important to determine the first and second critical velocities (the rate of fluidization beginning and the rate of the granules ablation) for the fluidized bed [13, 14].
The first critical velocity is calculated by the formula [15]:
ω 1 =
Re · μ f a
ρ f a · d
,
(1)
where Re—the Reynolds criterion, μ fa —the viscosity of the fluidizing agent, ρ fa —
the density of the fluidizing agent, and d—the diameter of the fluidized bed particles
(PAN granules).
A. V. Ivaniia et al.
Fig. 1 The scheme of the laboratory vortex granulator unit: 1—gas blower; 2—heater; 3—vortex
granulator; 4—container for granules; 5—waste gas cleaning stage; 6—container for preparation of
humidifier; 7—container of finished granules; 8—automation device for measuring the air flow; 9—
automation device for measuring the temperature of air; 10—automation device for measuring the
temperature of layer; 11—automation device for measuring the humidifier flow; 12—automation
device for measuring the temperature of humidifier
of the carbon film on the granule surface—Carbon evaporation head CA7625 and
SC7620 high resolution, manual Sputter Coater).
2 The Effect of the Humidification Intensity
on the Nanoporous Structure of PAN Granules
It is important to determine the first and second critical velocities (the rate of fluidization beginning and the rate of the granules ablation) for the fluidized bed [13, 14].
The first critical velocity is calculated by the formula [15]:
ω 1 =
Re · μ f a
ρ f a · d
,
(1)
where Re—the Reynolds criterion, μ fa —the viscosity of the fluidizing agent, ρ fa —
the density of the fluidizing agent, and d—the diameter of the fluidized bed particles
(PAN granules).