From:
Quosai,
Peter
(
NORBORD)
[
mailto:
QUOSAIP@
norbord.
com]

Sent:
Wednesday,
July
23,
2003
11:
33
AM
To:
'
Hanks,
Katie
P.'

Cc:
Lalonde,
Denis
(
NORBORD);
Lewis,
Al
(
NORBORD)

Subject:
RE:
Conveyor
dryers,
etc.

I
have
been
out
of
the
office
and
apologize
for
my
slow
response.

Two
(
2)
of
the
twelve
dryers
are
in
our
La
Sarre,
Quebec
Canada
OSB
mill.
The
one
in
the
US
that
you
have
not
accounted
for
is
at
the
Northwood
Panelboard
operation
in
Solway
MN.
The
Northwood
mill
is
a
joint
venture
between
Norbord
and
MeadWestvaco
and
is
operated
by
Norbord.

The
Joanna
SC,
Huguley
AL
and
Guntown
MS
facilities
each
have
three
conveyor
dryers;
although
the
Guntown
dryers
are
a
smaller
earlier
model.
The
Joanna
and
Alabama
dryers
are
basically
identical
(
although
there
are
some
small
operational
differences);
and
the
exhaust
from
zones
one
and
two
are
sent
to
the
Callidus
Closed
Loop
Gasification
energy
system
where
VOCs
are
incinerated
in
the
secondary
combustion
chamber.
Exhaust
gases
from
the
energy
system
are
sent
to
an
ESP
for
particulate
control.
Zone
three
is
exhausted
to
atmosphere
through
cyclones
for
particulate
control.

I
n
Guntown,
zone
one
exhaust
air
is
sent
to
the
Wellons
heat
energy
system
for
incineration
and
subsequently
to
an
ESP.
Zones
two
and
three
are
sent
directly
to
the
ESP
without
VOC
controls.

Drying
does
occur
in
zone
three.
At
the
Joanna
and
Alabama
mills
zone
three
temperatures
are
in
the
250
degree
F
range.
At
Guntown,
the
smaller
dryers
necessitate
slightly
higher
temperatures
in
zone
three
averaging
between
250
and
350
degrees
F.

I
have
spoken
to
Mary
Tom
Kissell
and
we
are
optimistic
that
we
can
work
out
a
schedule
for
a
visit
to
the
Alabama
mill.
Obviously
you
will
be
able
to
get
a
lot
better
idea
of
the
dryer's
operation
during
the
visit.

Thank
you.

Peter
Quosai
Manager,
Environment
Health
&
Safety
Norbord
Industries
Inc.
quosaip@
norbord.
com
­­­­­
Original
Message­­­­­

From:
Hanks,
Katie
P.
[
mailto:
kphanks@
rti.
org]

Sent:
Wednesday,
July
16,
2003
9:
25
AM
To:
'
quosaip@
norbord.
com'

Cc:
'
lalondeD@
norbord.
com';
Mary
Kissell
(
E­
mail);
Nicholson,
Rebecca
Subject:
Conveyor
dryers,
etc.

Mary
Tom
Kissell
with
EPA
is
going
to
contact
you
regarding
the
potential
EPA
site
visit
to
the
Hugely,
AL
plant.

I
have
some
unrelated
questions
about
conveyor
dryers.
The
public
comment
you
submitted
on
the
proposed
plywood
and
composite
wood
products
(
PCWP)
MACT
indicates
that
Norbord
operates
12
conveyor
dryers.
Are
3
of
these
dryers
in
Canada?
Our
records
indicate
that
that
there
are
3
conveyor
dryers
at
each
of
the
3
plants
in
Joanna
SC,
Guntown
MS,
and
Hugely
AL.

Also,
your
comment
indicates
that
"
When
drying
hardwoods
no
VOC
control
is
required;
however,
when
drying
pine
the
process
requires
VOC
control
for
zones
one
and
two;
zone
three
(
used
as
a
final
conditioning
zone)
is
exhausted
to
the
atmosphere
without
the
need
for
VOC
control."
Which
of
the
U.
S.
plants
does
this
statement
apply
for?
Our
1998
MACT
survey
data
for
the
MS
plant
indicate
that
only
zone
1
of
the
conveyor
dryers
is
controlled;
is
this
still
true
for
the
MS
plant?
We
do
not
have
survey
information
on
the
SC
and
AL
plants
since
these
are
newer.
Also,
does
drying
occur
in
zone
3
(
i.
e.,
is
heat
applied
to
the
wood
strands
in
zone
3)?

I
am
trying
to
make
sure
we
have
a
good
understanding
of
the
conveyor
dryer
and
control
configurations
that
exist
in
the
U.
S.
today.

Katie
Hanks
RTI
International
3040
Cornwallis
Road
Research
Triangle
Park,
NC
27709
(
919)
316­
3732
(
919)
541­
7155
(
fax)
kphanks@
rti.
org
