Page 157 - Dust Explosions in the Process Industries

730 Dust Explosions in the Process Industries

Table 1.15 Appropriate means for preventing and mitigating dust explosions in a chemical process
plant: powder and dust conveyors and dust removal equipment

c
0 ul
.- E e
a
U 5:
ln C
8 .-
.-
L
2 C
m
Q .-
-I- r
C
C
.- .-
c c
3 C .-
m E .-
D iij
0
X
Screw conveyors (X) (X) -
0
X
Chain conveyors (X) -
Bucket elevators (X) (x) X X
Conveyor belts X -
X
Shaker loaders -
X
Rotary locks (X) -
Pneumatic transport equipment (X) (X) X
X
Dust filters and cyclones (X) -
Industrial vacuum X X
cleaning instaltations
Source: Noha, 1989.

Figure 1 .I 41 Open slow-speed screw shredder
for size reduction of combustible waste materials:
(top) complete installation in operation, (bottom)
the shredding screw section in the lower part of
the installation (Courtesy of T. Pinkwasser, Buhler,
Switzerland).