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US
20130193088A1
( 1 9 )
United
S t a t e s
( 1 2 )
Patent
Application
Publication
( 1 0 ) P u b .
N 0 . :
US 2 0 1 3 / 0 1 9 3 0 8 8 A 1
E c h e v e r r i
( 4 3 ) P u b .
D a t e :
Aug. , 2013
( 5 4 ) THICKENER/CLARIFIER
FEEDWELL
( 5 2 ) US. l .
HAVINGVOLUTE
PERIPHERIES CPC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.
B01D 1/2411 (2013.01)
USPC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. .
210/788;
210/512.1
( 7 5 ) I n v e n t o r :
L u i s
E c h e v er r i , T u c s o n ,
A Z
U
)
( 7 3 )
A s s i g n e e : FLSMIDTH / S , V a l b y ( D K )
( 5 7 ) ABSTRACT
(21) Appl. N0.: 13/878,699
A
e e d W e l l
f o r a
t h i c k e n e r / c l a r i ? e r
i n c l u d e s a
f e e d W e l l
body
( 2 2 )
PCT
i l e d ; Oct 1 4 , 2 0 1 1
( 4 0 ) , a f e e d W e l l i n l e t ( 4 1 ) , a s i d e w a l l ( 4 2 ) , and a d i s c h a r g e
o p e n i n g ( 4 8 ) . At
e a s t
o n e i n f e e d
c o n d u i t
( 2 1 ) i s
c o n n e c t e d
a t
( 8 6 ) PCT
o . 1
PCT/US11/56369 a n u p s t r e a m e n d o f t h e
f e e d W e l l
i n l e t
( 4 1 ) . The
s i d e Wa l l ( 4 2 )
h a s
a n o n - c y l i n d r i c a l
c u r v e d
p e r i p h e r al s u r f a c e d e ? n i n g a
3 7 1
( 0 ) 0 ) r a d i a l l y - o u t e r m o s t ? u i d
b o u n d a r y s u r f a c e
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( 2 ) ( 4 )
D a t e :
A p r 1 0
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R e l a t e d US, p p l i c a t i o n
Data
may n c l u d e p o r t i o n s o f a v o l u t e s u r f a c e , c o i l s u r f a ce , h e l i c a l
surface,
com ound
curve surface, s line curve surface, or
( 6 0 ) P r o v l s l o n a l a p p h c a n o n
N O 6 1 / 3 9 3 0 4 0
? l e d o n O c t
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P u b l i c a t i o n C l a s si ? c a ti o n
t h e f ee d W e l l , c o n t r o l v e l o c i t y g r a d i e n t s
a n d
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r a t e s ,
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t e c t ? o c c u l a t e d a g g r e g a t e s , n o r m a l i z e s e d i m en t a ti o n c o n d i
( 5 1 ) I n t . C l . t i o n s i n t h e s e t t l i n g t a n k ,
a n d
p r e v e n t l a r g e l o c a l a c c e l e r a t i o n s
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