Conveying Modes
- Q2 s6 V9 h) S M | Operating Pressure
2 u6 D, U P) H5 y9 o# t8 |7 t8 z | Pick-up Velocity
+ a! T: Q( e" w; u/ k4 C) d | Terminal Velocity & a$ C9 a) F/ g7 B! @7 l/ Q
| Material to Air Ratio & J7 d* S: P) @9 F& d* @0 r
|
Dilute Phase# t$ X* u" W7 c- G( q7 v
| Up to 18 psig . V8 a$ l' R* X( y5 X
(Up to 1.22 bar)
" l( N- H% l$ i5 e# D) y | 3000-5000 ft./min. " W# F5 M4 _ g
(15-25 M/S)
$ [5 ^/ v8 T/ y" K | More than 6000 ft/min
! ? T* D! z- f! `(More than 25 M/S) 2 S# t0 {6 F+ {- r/ M3 M
| Up to 22:1 + ?. Z/ ]8 T+ k
|
Medium Phase
, [( A5 |/ m0 P) v | 15-35 psig 3 }! ^ O S0 L1 [, n8 z& Y) h3 P
(1.02 – 2.38 bar)
2 I# |" ]8 F4 x- W, [ | 1800 – 3500 ft./min. , n3 c9 d! P/ `; N: ^7 @
(9 – 18 M/S)
2 M* C& n+ x, S; X- I) F | 3000-5000 ft./min. 1 }6 ], c$ k. g7 S6 ?
(15 – 25 M/S) ( X/ p; m! ]% N& A# m4 `
| 15:1 – 30:1 ( u0 K; G, R; s
|
Dense Phase- }8 P' h' _, [) X
| 30-65 psig
2 v9 \) n7 i5 B' P V(2.04 – 4.42 bar)
" o- V1 J, ?. g6 w2 H# L | 400-1800 ft./min.
$ x7 v+ U1 U' v# @6 I# v* A(2.5 – 9 M/S)
4 `; e+ s2 e c$ o | Less than 4000 ft./min.
# r3 g& A9 O' ], P+ ]& ~(Less than 20 M/S)
2 _7 h% L+ A! C, l' J% w( y | 25:1 – 200:1 ; d) j4 U9 ]5 ]. G( Q
|
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发表于 2009-10-15 07:04:04
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