D e s c r i p t i o n
T i t l e of I n v e n t i o n : COAL DEACTIVATION TREATMENT DEVICE
Technical F i e l d
[00011
The present invention relates to a coal
deactivation processing apparatus configured to
deactivate coal with processing gas containing oxygen.
B a c k g r o u n d A r t
[0002]
Dry-distilled coal has an activated surface,
which tends to bond with oxygen. Accordingly, when the
coal is stored as it is, heat generatedby reaction with
oxygen in air may cause the coal to spontaneously
combust. In view of this, oxygen is first bonded to the
surface of the dry-distilled coal by exposing the coal
to a processing gas atmosphere containing oxygen and
the coal is thereby deactivated. The spontaneous
combustion in storage is thus prevented.
C i t a t i o n L i s t
P a t e n t L i t e r a t u r e s
[0003]
Patent Literature 1: Japanese Patent Application
Publication No. 2007-237011
Patent Literature 2: Pamphlet of International Patent
Application Publication No. 95/13868
Summary of Invention
Technical P r o b l e m
[0004]
When the coal is deactivated as described above,
in an initial stage of the deactivation, the coal tends
to rapidly react. The coal may thus increase in
temperature and spontaneously combust.
[0005]
Inview ofthis, anobject ofthe present invention
is to provide a coal deactivation processing apparatus
capable of suppressing a temperature increase of coal
being processed.
Solution to Problem
[0006]
A coal deactivation processing apparatus of a
first aspect of the invention to solve the problem
described above is a coal deactivation processing
apparatus configured to deactivate coal with
processing gas containing oxygen, characterized in
that the coal deactivation processing apparatus
comprises: an apparatus main body in which the coal
flows from one side to another side; processing gas
feeding means for feeding the processing gas into the
apparatus main body; processing gas humidifying
heating means for heating and humidifying the
processing gas to be fed into the apparatus main body
in such a way that a relative humidity ofthe processing
gas is maintainable to be 35% or more even when a
temperature of the processing gas is 9 5 " ~ ; and
apparatus main body internal-environment adjusting
means for adjusting a temperature inside the apparatus
mainbody in suchawaythatthe relativehumidityinside
the apparatus mainbody is 35% or more and atemperature
inside the apparatus main body is 95°C or less.
[0007]
A coal deactivation processing apparatus of a
second aspect ofthe invention is the coal deactivation
processing apparatus of the first aspect of the
invention characterizedinthat the apparatus mainbody
internal-environment adjusting means includes:
apparatus main body internal-temperature measuring
means for measuring the temperature inside the
apparatus main body; processing gas oxygen
concentration adjusting means for adjusting an oxygen
concentration of the processing gas to be fed into the
apparatus main body; and control means for controlling
the processing gas oxygen concentration adjusting
means on the basis of information from the apparatus
main body internal-temperature measuring means.
[0008]
A coal deactivation processing apparatus of a
third aspect of the invention is the coal deactivation
processing apparatus of the second aspect of the
invention characterized in that the processing gas
feeding means includes : one-side feeding means for
feeding the processing gas into the one side of the
apparatus main body; and other-side feeding means for
feeding the processing gas into the other side of the
apparatus main body, the processing gas humidifying
heating means includes: one-side humidifying heating
means for heating and humidifying the processing gas
to be fed into the one side of the apparatus main body
in such a way that the relative humidity of the
processing gas is maintainable to be 35% or more even
when the temperature ofthe processing gas is 9 5 " ~ ;a nd
other-side humidifying heating means for heating and
humidifying the processing gas to be fed into the other
side of the apparatus main body in such a way that the
relative humidity ofthe processing gas is maintainable
to be 35% or more even when the temperature of the
processing gas is 9 5 " ~th~e apparatus main body
internal-temperature measuring means includes
one-side temperature measuring means for measuring a
temperature inside the apparatus main body on the one
side, the processing gas oxygen concentration
adjustingmeans includes one-side oxygen concentration
adjusting means for adjusting the oxygen concentration
of the processing gas to be fed into the one side of
the apparatus main body, and the control means controls
the one-side oxygen concentration adjusting means on
the basis of information fromthe one-side temperature
measuring means.
[0009]
A coal deactivation processing apparatus of a
fourth aspect ofthe invention is the coal deactivation
processing apparatus of the first aspect of the
invention characterizedinthat the apparatus main body
internal-environment adjusting means includes:
apparatus main body internal-temperature measuring
means for measuring the temperature inside the
apparatus main body; processing gas flow-rate
adjusting means for adjusting a flow rate of the
processing gas to be fed into the apparatus main body;
and control means for controlling the processing gas
flow-rate adjusting means on the basis of information
from the apparatus main body internal-temperature
measuring means.
[OOlO]
A coal deactivation processing apparatus of a
fifth aspect of the invention is the coal deactivation
processing apparatus of the fourth aspect of the
invention characterized in that the processing gas
feeding means includes: one-side feeding means for
feeding the processing gas into the one side of the
apparatus main body; and other-side feeding means for
feeding the processing gas into the other side of the
apparatus main body, the processing gas humidifying
heating means includes: one-side humidifying heating
means for heating and humidifying the processing gas
to be fed into the one side of the apparatus main body
in such a way that the relative humidity of the
processing gas is maintainable to be 35% or more even
when the temperature of the processing gas is 95°C; and
other-side humidifying heating means for heating and
humidifying the processing gas to be fed into the other
side of the apparatus main body in such a way that the
relative humidity ofthe processing gas is maintainable
to be 35% or more even when the temperature of the
processing gas is 9 5 " ~ , the apparatus main body
internal-temperature measuring means includes
one-side temperature measuring means for measuring a
temperature inside the apparatus main body on the one
side, the processing gas flow-rate adjusting means
includes one-side gas flow-rate adjusting means for
adjusting the flow-rate of the processing gas to be fed
into the one side of the apparatus main body, and the
control means controls the one-side gas flow-rate
adjusting means on the basis of information from the
one-side temperature measuring means.
[OOll]
A coal deactivation processing apparatus of a
sixth aspect of the invention is the coal deactivation
processing apparatus of the first aspect of the
invention characterized in that the apparatus main body
internal-environment adjusting means includes :
apparatus main body internal-temperature measuring
means for measuring the temperature inside the
apparatus main body; cooling water flow means for
causing cooling water to flow inside the apparatus main
body; and control means for controlling the cooling
water flow means on the basis of information from the
apparatus main body internal-temperature measuring
means.
[0012]
A coal deactivation processing apparatus of a
seventh aspect of the invention is the coal
deactivation processing apparatus of the sixth aspect
of the invention characterized in that the processing
gas feeding means includes: one-side feeding means for
feeding the processing gas into the one side of the
apparatus main body; and other-side feeding means for
feeding the processing gas into the other side of the
apparatus main body, the processing gas humidifying
heating means includes: one-side humidifying heating
means for heating and humidifying the processing gas
to be fed into the one side of the apparatus main body
in such a way that the relative humidity of the
processing gas is maintainable to be 35% or more even
when the temperature ofthe processing gas is 9 5 " ~ ;an d
other-side humidifying heating means for heating and
humidifying the processing gas to be fed into the other
side of the apparatus main body in such a way that the
relative humidityoftheprocessing gas ismaintainable
to be 35% or more even when the temperature of the
processing gas is 9 5 " ~th~e apparatus main body
internal-temperature measuring means includes
one-side temperature measuring means for measuring a
temperature inside the apparatus main body on the one
side, the cooling water flow means includes one-side
flow means for causingthe cooling water to flow inside
the apparatus main body on the one side, and the control
means controls the one-side flow means on the basis of
information from the one-side temperature measuring
means.
Advantageous Effects of Invention
In the coal deactivation processing apparatus of
the present invention, the processing gas humidifying
heating means heats and humidifies the processing gas
to be fed into the apparatus main body in such a way
that the relative humidity of the processing gas is
maintainable tobe 35% ormore even when the temperature
of the processing gas is 9 5 " a~nd~ t he apparatus main
body internal-environment adjusting means adjusts the
temperature inside the apparatus main body in such a
way that the relative humidity inside the apparatus
main body is 35% or more and the temperature inside the
apparatus main body is 9 5 " o~r less. Accordingly, it
is possible to always maintain the inside of the
processing tower at a temperature of 9 5 " o~r less and
at a relative humidity of 35% or more and suppress a
temperature increase of coal being processed.
Brief Description of Drawings
[0014]
[Fig. 11 Fig. 1 is a schematic configuration diagram
of a first embodiment of a coal deactivation processing
apparatus of the present invention.
[Fig. 21 Fig. 2 is a schematic configuration diagram
of a second embodiment of a coal deactivation
processing apparatus of the present invention.
[Fig. 31 Fig. 3 is a schematic configuration diagram
of athird embodiment of a coal deactivation processing
apparatus of the present invention.
Description of Embodiments
[0015]
Embodiments of a coal deactivation processing
apparatus of the present invention are described below
based on the drawings. However, the present invention
is not limited tothe embodiments describedbelowbased
on the drawings.
[0016]

A first embodiment of the coal deactivation
processing apparatus of the present invention is
described based on Fig. 1.
[0017]
As shown in Fig. 1, on a processing tower 111 in
which dry-distilled coal 1 flows from an upper side
being one side to alower side being another side, there
is provided a supply chamber 112 configured to supply
the coal 1 into the processing tower 111. Below the
processing tower 111, there is provided a cooling
chamber 113 which receives a processed coal 2 having
flowed inside the processing tower 111 and which
discharges the processed coal 2 after cooling it.
[0018]
A set of front end sides of multiple introduction
pipes 121anda set of base end sides of multiple exhaust
pipes 122 are each connected to a portion of the
processing tower 111 above (on one side of) the middle
thereof in a manner arranged in an up-down direction,
the introduction pipes 121 configured to introduce
processing gas 5 containing oxygen into the portion of
the processing tower 111 above the middle thereof, the
exhaust pipes 122 configuredto exhaust the processing
gas 5 having flowedinsidethe portion ofthe processing
tower 111 above the middle thereof to the outside.
[0019]
A front end side of a feed pipe 123 configured to
feed the processing gas 5 is connected to base end sides
of the introduction pipes 121. A front end side of an
air supply pipe 124 configured to supply air 3 and a
front end side of a nitrogen supply pipe 125 configured
to supply nitrogen gas 4 are connected to a base end
side ofthe feedpipe123. Abase end side ofthe nitrogen
s u p p l y p i p e 1 2 5 i s c o n n e c t e d t o a n i t r o g e n s u p p l y s o u r c e
126 s u c h a s a n i t r o g e n g a s t a n k . A b a s e end s i d e of t h e
a i r s u p p l y p i p e 124 i s opened t o t h e a t m o s p h e r e .
[0020]
A f l o w - r a t e a d j u s t m e n t v a l v e 127 i s p r o v i d e d i n
t h e m i d d l e of t h e a i r s u p p l y p i p e 124 w h i l e a f l o w - r a t e
a d j u s t m e n t v a l v e 128 i s p r o v i d e d i n t h e m i d d l e of t h e
n i t r o g e n s u p p l y p i p e 1 2 5 . A b l o w e r 129 i s p r o v i d e d i n
t h e m i d d l e of t h e f e e d p i p e 1 2 3 . A h u m i d i f y i n g h e a t i n g
d e v i c e 1 3 0 w h i c h i s o n e - s i d e h u m i d i f y i n g h e a t i n g means
f o r h e a t i n g and h u m i d i f y i n g t h e p r o c e s s i n g g a s 5 i s
p r o v i d e d between t h e f r o n t end s i d e of t h e f e e d p i p e
123 and t h e blower 129.
[0021]
F r o n t end s i d e s of t h e e x h a u s t p i p e s 122 a r e
c o n n e c t e d t o a b a s e end s i d e of a c i r c u l a t i o n p i p e 131.
A f r o n t e n d s i d e o f t h e c i r c u l a t i o n p i p e 1 3 1 i s c o n n e c t e d
t o a p o r t i o n between t h e b a s e end s i d e of t h e f e e d p i p e
123 and t h e b l o w e r 1 2 9 . A d u s t removing d e v i c e 132 s u c h
as a c y c l o n e w h i c h r e m o v e s d u s t i n g a s i s p r o v i d e d i n
t h e m i d d l e o f t h e c i r c u l a t i o n p i p e 1 3 1 . A b a s e end s i d e
o f a n e m i s s i o n p i p e 1 3 3 i s connectedtoaportionbetween
t h e f r o n t end s i d e of t h e c i r c u l a t i o n p i p e 131 and t h e
d u s t removing d e v i c e 1 3 2 . A f r o n t end s i d e of t h e
e m i s s i o n p i p e 133 communicates w i t h t h e o u t s i d e v i a a
n o t - i l l u s t r a t e d s c r u b b e r o r t h e l i k e .
COO221
Moreover, a s e t of f r o n t end s i d e s of m u l t i p l e
i n t r o d u c t i o n p i p e s 1 4 1 and a s e t of b a s e end s i d e s of
m u l t i p l e e x h a u s t p i p e s 142 a r e e a c h c o n n e c t e d t o a
4 AUG 7011
portion of the processing tower 111 below (on another
side of) the middle thereof in a manner arranged in the
up-down direction, the introduction pipes 141
configuredto feed the processing gas 5intotheportion
of the processing tower 111 below the middle thereof,
the exhaust pipes 142 configured to exhaust the
processing gas 5 having flowed inside the portion of
the processing tower 111 below the middle thereof to
the outside.
[0023]
A front end side of a feed pipe 143 configured to
feed the processing gas 5 is connected to base end sides
of the introduction pipes 141. A front end side of an
air supply pipe 144 configured to supply the air 3 and
a front endside ofanitrogen supplypipe145 configured
to supply the nitrogen gas 4 are connected to a base
end side of the feed pipe 143. A base end side of the
nitrogen supply pipe 145 is connected to a nitrogen
supply source 146 such as a nitrogen gas tank. A base
end side of the air supply pipe 144 is opened to the
atmosphere.
[0024]
A flow-rate adjustment valve 147 is provided in
the middle of the air supply pipe 144 while a flow-rate
adjustment valve 148 is provided in the middle of the
nitrogen supply pipe 145. A blower 149 is provided in
the middle of the feed pipe 143. A humidifying heating
device 150 which is other-side humidifying heating
means for heating and humidifying the processing gas
5 is provided between the front end side of the feed
pipe 143 and the blower 149.
[0025]
Front end sides of the exhaust pipes 142 are
connected to a base end side of a circulation pipe 151.
Afrontend sideofthe circulationpipe151is connected
to a portion between the base end side of the feed pipe
143 and the blower 149. A dust removing device 152 such
as a cyclone which removes dust in gas is provided in
the middle of the circulation pipe 151. A base end side
ofanemissionpipe153is connectedto aportionbetween
the front end side of the circulation pipe 151 and the
dust removing device 152. A front end side of the
emission pipe 153 communicates with the outside via a
not-illustrated scrubber or the like.
[0026]
Oxygen sensors 161, 162 configured to measure
oxygen concentrations in gases flowing in the feed
pipes 123, 143 and flow meters 163, 164 configured to
measure flow rates ofthe gases flowing in the feedpipes
123, 143 are provided respectively in the feed pipes
123, 143 between the blower 129 and the humidifying
heating device 130 and between the blower 149 and the
humidifying heating device 150. A temperature sensor
165 being one-side temperature measuring means and a
temperature sensor 166 being other-side temperature
measuring means which measure the temperature of used
processing gas 6 exhausted from the processing tower
111, i.e. the temperatures inside the processing tower
1 4 AUG 7011
111 are provided respectively on the base end sides of
the circulation pipes 131, 151.
[0027]
The sensors 161, 162, 165, 166 and the flow meters
163, 164 are electrically connected to an input unit
ofacontroldevice160 which is controlmeans. Anoutput
unit of the control device 160 is electrically
connected to the flow-rate adjustment valves 127, 128,
147, 148, the blowers 129, 149, and the humidifying
heaters 130, 150. The control device 160 can control
operations ofthe flow-rate adjustment valves 127, 128,
147, 148, the blowers 129, 149, and the humidifying
heaters 130, 150 on the basis of information from the
sensors 161, 162, 15, 166, the flow meters 163, 164,
and the like (details will be described later).
[0028]
Note that, in the embodiment, an apparatus main
body is formed of the processing tower 111, the supply
chamber 112, the cooling quality 113, and the like;
one-side feeding means is formed of the introduction
pipes 121, the exhaust pipes 122, the feed pipe 123,
the air supply pipe 124, the nitrogen supply pipe 125,
the nitrogen supply source 126, the flow-rate valves
127, 128, the blower 129, the circulation pipe 131, the
emission pipe 133, and the like; other-side feeding
means is formed of the introduction pipes 141, the
exhaust pipes 142, the feed pipe 143, the air supply
pipe 144, the nitrogen supply pipe 145, the nitrogen
supply source 146, the flow-rate valves 147, 148, the
blower 149, the circulation pipe 151, the emission pipe
153, and the like; processing gas feeding means is
formed of the one-side feeding means, the other-side
feeding means, and the like; the processing gas
humidifying heatingmeans is formed of the humidifying
heaters 130, 150 and the like; apparatus main body
internal-temperature measuring means is formed of the
temperature sensors 165, 166 and the like; one-side
oxygen concentration adjusting means is formed of the
flow-rate adjustment valves 127, 128 and the like;
one-side gas flow-rate adjustingmeans is formed ofthe
flow-rate adjustment valves 127, 128, the blower 129,
and the like; other-side oxygen concentration
adjusting means is formed of the flow-rate adjustment
valves 147, 148 and the like; the other-side gas
flow-rate adjusting means is formed of the flow-rate
adjustment valves 147, 148, the blower 149, and the
like; processing gas oxygen concentration adjusting
means is formed of the one-side oxygen concentration
adjusting means, the other-side oxygen concentration
adjustingmeans, and the like; processing gas flow-rate
adjustingmeans is formed ofthe one-side gas flow-rate
adjusting means, the other-side gas flow-rate
adjusting means, and the like; and apparatus main body
internal-environment adjusting means is formed of the
apparatus main body internal-temperature measuring
means, the processing gas oxygen concentration
adjusting means, the control device 160, and the like.
[0029]
Next, operations of a coal deactivation
processing apparatus 100 of such an embodiment are
described.
[0030]
When the dry-distilled coal 1 is supplied fromthe
supply chamber 112 into the processing tower 111 and
the control device 160 is made to operate, in order to
achieve a predetermined oxygen concentration (for
example, 5 to 10 vol. % ) and a predetermined flow rate,
the control device 160 first controls opening degrees
of the flow-rate adjustment valves 127, 128, 147, 148
and operations of the blowers 129, 149 on the basis of
information from the oxygen sensors 161, 162 and the
flow meters 163, 164, and the air 3 and the nitrogen
4 are thereby fed from the supply pipes 124, 125, 144,
145 to the feed pipes 123, 143 and mixed with each other
to obtain the processing gas 5. The control device 160
also controls operations of the humidifying heating
devices 130, 150 to heat and humidify (for example,
saturated state at 50°C) the processing gas 5 in such
a way that a relative humidity of the processing gas
5 is maintainable to be 35% or more even when the
temperature of the processing gas 5 is 9 5 " ~ .
[0031]
The processing gas 5 humidified and heated as
described above is introduced from the introduction
pipes 121, 141 respectively into the upper and lower
portions of the processing tower 111, deactivates a
surface of the coal 1 inside the processing tower 111,
and is then exhausted from the exhaust pipes 122, 142
tothe circulation pipes 131, 151asthe usedprocessing
gas 6.
[0032]
The dust removing devices 132, 152 remove dust
from the used processing gas 6 (nitrogen gas in which
oxygen gas is almost consumed) exhausted to the
circulation pipes 131, 151. Part ofthe usedprocessing
gas 6 is emitted from the emission pipes 133, 153 to
the outside via the scrubber while a remaining portion
thereof is returned to the feed pipes 123, 143, mixed
with the new air 3 and the new nitrogen gas 4 from the
supply pipes 124, 125, 144, 145, and used again as the
new processing gas 5.
[0033]
Meanwhile, the coal2 whose surface is deactivated
inside the processingtowerlllis cooled in the cooling
quality 113 and is then discharged to the outside.
[0034]
When an amount of reaction between the coal 1 and
oxygen in the processing gas 5 per unit time is large
and the temperature inside the processing tower 111
exceeds 9 5 " ~ in the aforementioned deactivation
processing of the surface of the coal 1, the control
device 160 controls the opening degrees of the
flow-rate adjustment valves 127, 128, 147, 148 on the
basis of information from the sensors 161, 162, 165,
166 and the flow meters 163, 164 in such a way that the
temperature inside the processing tower 111 becomes
9 5 " ~or less with the processing gas 5 fed at a fixed
flow rate. The control device 160 thereby causes the
oxygen concentration in the processing gas 5 to
decrease and suppresses the amount of reaction between
the coal 1 and the oxygen in the processing gas 5 per
unit time.
[0035]
The inside of the processing tower 111 is thus
always maintained at a temperature of 9 5 " o~r less and
at a relative humidity of 35% or more.
[0036]
Accordingly, the coal deactivation processing
apparatus 100 of the embodiment can suppress a
temperature increase of the coal 1 being processed.
roo371
Moreover, the temperatures inside the upper and
lower portions of the processing tower 111 can be
independently adjusted. Hence, even when there is a
difference in temperature increase between the upper
and lower portions of the processing tower 111, it is
possible to adjust the temperature inside the
processing layer 111 depending on the difference and
eliminate wasteful energy consumption.
[0038]
Incidentally, the amount of reaction between the
coal 1 and the oxygen in the processing gas 5 per unit
time becomes large mostly when the coal 1 is first
supplied into the processing tower 111. Moreover, the
case where the amount of reaction is large is likely
to occur in an upper 30% to 70% (50f20%) portion of the
processingtower111, anddoes notoccurofteninalower
30% to 70% (50?20%) portion ofthe processingtower 111.
[0039]
1n view of this, in the coal deactivation
processing apparatus100 ofthe embodiment, the initial
cost and the running cost canbe reducedby, for example,
omitting the nitrogen supply pipe 145, the nitrogen
supply source 146, the flow-rate adjustment valve 148,
the oxygen sensor 162, and the like and supplying only
the air 3 as the processing gas 5 into the portion of
the processing tower 111 below the middle thereof.
[0040]

A second embodiment of a coal deactivation
processing apparatus of the present invention is
described based on Fig. 2. Note that the same parts as
those of the aforementioned embodiment are denoted by
the same reference numerals as those used in the
description of the aforementioned embodiment and
description overlapping the description of the
aforementioned embodiment is omitted.
[0041]
As shown in Fig. 2, the sensors 161, 162, 165, 166
and the flow meters 163, 164 are electrically connected
to an input unit of a control device 260 which is control
means. An output unit of the control device 260 is
electrically connected to the flow-rate adjustment
valves 127, 128, 147, 148, the blowers 129, 149, and
the humidifying heaters 130, 150. The control device
260 can control operations of the flow-rate adjustment
valves 127, 128, 147, 148, the blowers 129, 149, and
the humidifying heaters 130, 150 on the basis of
information fromthe sensors 161, 162, 15, 166, the flow
meters 163, 164, and the like (details will described
later).
[0042]
Note that, in the embodiment, the apparatus main
body internal-environment adjustingmeans is formed of
the apparatusmainbody internal-temperaturemeasuring
means, the processing gas flow-rate adjusting means,
the control device 260, and the like.
[0043]
In a coal deactivation processing apparatus 200
of such an embodiment, when the control device 260 is
made to operate, the control device 260 operates in a
similar way to the control device 160 in the coal
deactivation processing apparatus 100 of the
aforementioned embodiment and performs deactivation
processing ofthe surface ofthe coal linthe processing
tower 111.
[0044]
Then, when the amount of reaction between the coal
1 and the oxygen in the processing gas 5 per unit time
is large and the temperature inside the processing
tower 111 exceeds 9 5 "t~he~ c ontrol device 260 controls
the opening degrees of the flow-rate adjustment valves
127, 128, 147, 148 and blowing powers of the blowers
129, 149 on the basis of information from the sensors
161, 162, 165, 166 and the flow meters 163, 164 in such
a way that the temperature inside the processing tower
111 becomes 9 5 "o~r less with the processing gas 5 fed
ata fixed oxygen concentration. The controlde.vice 260
thereby causes the flow rate of the processing gas 5
to increase and coolsthe inside oftheprocessingtower
111 by using a wind.
[0045]
In other words, although, in the aforementioned
first embodiment, the temperature increase in the
processing tower 111 is suppressed by reducing the
oxygen concentration in the processing gas 5 to
suppress the amount of reaction between the coal 1 and
the oxygen, in the embodiment, the temperature increase
in the processingtower 111 is suppressedbyincreasing
the flow rate of the processing gas 5 to cool the inside
of the processing tower 111 with a wind.
The inside of the processing tower 111 is thus
always maintained at a temperature of 9 5 " o~r less and
at a relative humidity of 35% or more.
[0047]
Accordingly, in the coal deactivation processing
apparatus 200 of the embodiment, effects similar to
those in the aforementioned embodiments can be
obtained.
[0048]
Note that, also in the coal deactivation
processing apparatus 200 of the embodiment, as
described in the aforementioned embodiment, the
initial cost and the running cost can be reduced by,
for example, omitting the nitrogen supply pipe 145, the
nitrogen supply source 146, the flow-rate adjustment
valve 148, the oxygen sensor 162, and the like and
supplying only the air 3 as the processing gas 5 into
the portion o f t h e p r o c e s s i n g t o w e r 1 1 1 b e l o w t h e m i d d l e
thereof at a fixed flow-rate.
[0049]

A third embodiment of a coal deactivation
processing apparatus of the present invention is
described based on Fig. 3 . Note that the same parts as
those of the aforementioned embodiment are denoted by
the same reference numerals as those used in the
description of the aforementioned embodiments and
description overlapping the description of the
aforementioned embodiments is omitted.
[0050]
As shown in Fig. 3, multiple cooling pipes 371
through which cooling water 7 flows are providedin the
portion of the processing tower 111 above (on the one
side of) the middle thereof while being arranged in the
up-down direction at predetermined intervals. Base end
sides of the cooling pipes 371 are connected to a front
end side of a feed pipe 372 configured to feed the
cooling water 7. A base end side of the feed pipe 372
is connected to a bottomportion of a cooling water tank
374 configured to store the cooling water 7.
[0051]
A temperature controller 375 configured to
control the temperature of the cooling water 7 in the
cooling water tank 374 is providedinthe cooling water
tank 374. A flow-rate adjustment valve 376 and a feed
pump 377 are provided in the middle of the feed pipe
I 4 AUG 'ID11
372. Front end sides of the cooling pipes 371 are
connected to a base end side of a circulation pipe 373.
A front end side of the circulation pipe 373
communicates with an upper portion of the cooling water
tank 374. A flow meter 367 configured to measure the
flow rate of the cooling water 7 is provided between
the front end side of the feed pipe 372 and the feed
pump 3 7 7 .
[0052]
Moreover, multiple cooling pipes 381 through
which the cooling water 7 flows are provided in the
portion of the processingtower 111below (on the other
side of) the middle thereof while being arranged in the
up-down direction at predeterminedintervals. Base end
sides of the cooling pipes 381 are connected to a front
end side of a feed pipe 382 configured to feed the
cooling water 7. A base end side of the feed pipe 382
is connected to a bottomportion of a cooling water tank
384 configured to store the cooling water 7.
[0053]
A temperature controller 385 configured to
control the temperature of the cooling water 7 in the
cooling water tank 384 is provided in the cooling water
tank 384. A flow-rate adjustment valve 386 and a feed
pump 387 are provided in the middle of the feed pipe
382. Front end sides of the cooling pipes 381 are
connected to a base end side of a circulation pipe 383.
A front end side of the circulation pipe 383
communicates with an upper portion ofthe cooling water
tank 384. A flow meter 368 configured to measure the
flow rate of the cooling water 7 is provided between
the front end side of the feed pipe 382 and the feed
pump 387.
[0054]
Note that, also in the embodiment, like the coal
deactivation processing apparatuses 100, 200 of the
aforementioned embodiments, the coal deactivation
processing apparatus includes the members 121 to 133,
141 to 153, 161 to 166 which allow feeding of the
processing gas 5. However, illustration of these
members is omitted in Fig. 3 to avoid complication of
the drawing.
[ 0 0 5 5 ]
Moreover, the sensors 161, 162, 165, 166 and the
flow meters 163, 164, 367, 368 are electrically
connected to an input unit of a control device 360 which
is control means. An output unit of the control device
360 is electrically connected to the flow-rate
adjustment valves 127, 128, 147, 148, 376, 386, the
blowers 129, 149, the humidifying heaters 130, 150, the
temperature controllers 375, 385, and the feed pumps
377, 387. The control device 260 can control operations
of the flow-rate adjustment valves 127, 128, 147, 148,
376, 386, the blowers 129, 149, the humidifying heaters
130, 150, the temperature controllers 375, 385, and the
feed pumps 377, 387 on the basis of information from
the sensors 161, 162, 15, 166, the flow meters 163, 164,
367, 368, and the like (details will be described
later).
[0056]
Note that, in the embodiment, one-side flow means
is formed of the cooling pipes 371, the feed pipe 372,
the circulation pipe 373, the cooling water tank 374,
the temperature controller 375, the flow-rate
adjustment valve 376, the feed pump 377, and the like;
other-side flow means is formed of the cooling pipes
381, the feed pipe 382, the circulation pipe 383, the
cooling water tank 384, the temperature controller 385,
the flow-rate adjustment valve 386, the feed pump 387,
and the like; cooling water flow means is formed of the
one-side flow means, the other-side flow means, and the
like; and the apparatus main body internal-environment
adjusting means is formed of the apparatus main body
internal-temperature measuring means, the cooling
water flow means, the control device 360, and the like.
[0057]
In a coal deactivation processing apparatus 300
of such an embodiment, when the control device 360 is
made to operate, the control device 360 operates in a
similar way to the control devices 160, 260 in the coal
deactivation processing apparatuses 100, 200 of the
aforementioned embodiments and performs deactivation
processingofthe surface ofthe coal linthe processing
tower 111.
[0058]
Moreover, the control device 360 performs control
of the temperature controller 375 along with the
aforementioned deactivation processing in such a way
that the cooling water 7 in the cooling water tank 347
is set to a predetermined temperature.
[0059]
Then, when the amount of reaction between the coal
1 and the oxygen in the processing gas 5 per unit time
is large and the temperature inside the processing
tower 111 exceeds 95"C, the control device 360 controls
the opening degrees of the flow-rate adjustment valves
376, 386 and the delivery forces of the feed pumps 377,
387 on the basis of information from the temperature
sensors 165, 166 and the flow meters 367, 368, in such
a way that the temperature inside the processing tower
lllbecomes 9 5 "o~r less. The control device 36Othereby
causes the cooling water 7 to flow through the cooling
pipes 371 while adjusting the flow rate of the cooling
water 7 flowing from the cooling water tank 374 to the
feedpipe 372 and thus coolsthe inside ofthe processing
tower 111 with water.
[0060]
In other words, although, in the aforementioned
second embodiment, the temperature increase is
suppressed by increasing the flow rate of the
processing gas 5 flowing inside the processing tower
111 to cool the inside of the processing tower 111 with
a wind, in the embodiment, the temperature increase is
suppressedbycausingthe cooling water 7 to flow inside
the processing tower 111 to cool the inside of the
processing tower 111 with water.
[0061]
Accordingly, in the coal deactivation processing
apparatus 300 of the embodiment, effects similar to
those in the aforementioned embodiments can be
obtained.
[0062]
Note that, as described in the aforementioned
embodiment, the amount of reaction between the coal 1
and the oxygen in the processing gas 5 per unit time
becomes large mostly when the coal 1 is first supplied
into the processingtowerlll. Moreover, the case where
the amount of reaction is large is likely to occur in
the upper 30% to 70% (50+20%) portion of the processing
tower 111, and does not occur often in the lower 30%
to 70% (50+20%) portion of the processing tower 111.
[0063]
Accordingly, in the coal deactivation processing
apparatus 300 of the embodiment, the initial cost and
the running cost can be reduced by, for example,
omitting the members 368, 381 to 387 together with the
nitrogen supply pipe 125, the nitrogen supply source
126, the flow-rate adjustment valve 128, the oxygen
sensor 161, and the like and supplying only the air 3
as the processing gas 5 at a fixed flow rate, without
cooling the portion of the processing tower 111 below
the middle thereof with the cooling water 7.
[0064]

Note that, in the embodiments describedabove, the
temperature i n s i d e t h e p r o c e s s i n g t o w e r 1 1 1 i s m e a s u r e d
by providing the temperature sensors 165, 166 on the
base end sides of the circulation pipes 131, 151 and
thereby measuring the temperature of the used
processing gas 6 exhausted from the processing tower
111. However, as another embodiment, for example, the
temperature inside the processing tower 111 can be
measured by providing a temperature sensor on a wall
surface or in the inside of the processing tower 111.
[0065]
Moreover, the embodiments described above can be
carried out by being combined as appropriate.
Industrial Applicability
[0066]
Since the coal deactivation processing apparatus
of the present invention can suppress the temperature
increase of coalbeingprocessed, the coal deactivation
processing apparatus can be very useful in industries.
Reference Signs List
[0067]
1, 2 COAL
3 AIR
4 NITROGEN GAS
5, 6 PROCESSING GAS
7 COOLING WATER
100 COAL DEACTIVATION PROCESSING APPARATUS
111 PROCESSING TOWER
112 SUPPLY CHAMBER
113 COOLING CHAMBER
121, 141 INTRODUCTION PIPE
122, 142 EXHAUST PIPE
123, 143 FEED-OUT PIPE
124, 144 AIR SUPPLY PIPE
125, 145 NITROGEN SUPPLY PIPE
146 NITROGEN SUPPLY SOURCE
128, 147, 148 FLOW-RATE ADJUSTMENT VALVE
149 BLOWER
150 HUMIDIFYING HEATING DEVICE
151 CIRCULATION PIPE
152 DUST REMOVING DEVICE
153 EMISSION PIPE
CONTROL DEVICE
162 OXYGEN SENSOR
164 FLOW METER
166 TEMPERATURE SENSOR
COAL DEACTIVATION PROCESSING APPARATUS
CONTROL DEVICE
COAL DEACTIVATION PROCESSING APPARATUS
378 FLOW METER
381 COOLING PIPE
382 FEEDPIPE
383 CIRCULATION PIPE
384 COOLING WATER TANK
385 TEMPERATURE CONTROLLER
386 FLOW-RATE ADJUSTMENT VALVE
387 FEED PUMP

Claims
[Claim 1]
A coal deactivation processing apparatus
configured to deactivate coal with processing gas
containing oxygen, characterized in that the coal
deactivation processing apparatus comprises:
anapparatusmainbody inwhich the coal flows from
one side to another side;
processing gas feeding means for feeding the
processing gas into the apparatus main body;
processing gas humidifying heating means for
heating and humidifying the processing gas to be fed
into the apparatus main body in such a way that a
relative humidity ofthe processing gas is maintainable
to be 35% or more even when a temperature of the
processing gas is 95°C; and
apparatus main body internal-environment
adjusting means for adjusting a temperature inside the
apparatus main body in such a way that the relative
humidity inside the apparatus main body is 35% or more
and the temperature inside the apparatus main body is
9 5 " ~or less.
[Claim 2]
The coal deactivation processing apparatus
according to claim 1, characterized in that the
apparatus main body internal-environment adjusting
means includes:
apparatus main body internal-temperature
measuring means for measuring the temperature inside
the apparatus main body;
processing gas oxygen concentration adjusting
means for adjusting an oxygen concentration of the
processing gas to be fed into the apparatus main body;
and
control means for controlling the processing gas
oxygen concentration adjusting means on the basis of
information from the apparatus main body
internal-temperature measuring means.
[Claim 3]
The coal deactivation processing apparatus
according to claim 2, characterized in that
the processing gas feeding means includes:
one-side feeding means for feeding the processing gas
into the one side of the apparatus main body; and
other-side feedingmeans for feeding the processing gas
into the other side of the apparatus main body,
the processing gas humidifying heating means
includes: one-side humidifying heating means for
heating and humidifying the processing gas to be fed
into the one side of the apparatus main body in such
a way that the relative humidity of the processing gas
is maintainable to be 35% or more even when the
temperature of the processing gas is 9 5 " ~ ; and
other-side humidifying heating means for heating and
humidifying the processing gas to be fed into the other
side of the apparatus main body in such a way that the
relative humidityoftheprocessing gas ismaintainable
to be 35% or more even when the temperature of the
processing gas is 9 5 " ~ ~
the apparatus main body internal-temperature
measuring means includes one-side temperature
measuringmeans for measuring a temperature inside the
apparatus main body on the one side,
theprocessinggas oxygen concentrationadjusting
meansincludes one-side oxygen concentration adjusting
means for adjusting the oxygen concentration of the
processing gas to be fed into the one side of the
apparatus main body, and
the control means controls the one-side oxygen
concentration adjusting means on the basis of
information from the one-side temperature measuring
means.
[Claim 4]
The coal deactivation processing apparatus
according to claim 1, characterized in that the
apparatus main body internal-environment adjusting
means includes:
apparatus main body internal-temperature
measuring means for measuring the temperature inside
the apparatus main body;
processing gas flow-rate adjusting means for
adjusting a flow rate of the processing gas to be fed
into the apparatus main body; and
control means for controlling the processing gas
flow-rate adjusting means on the basis of information
from the apparatus main body internal-temperature
measuring means.
[Claim 5]
The coal deactivation processing apparatus
according to claim 4, characterized in that
the processing gas feeding means includes:
one-side feeding means for feeding the processing gas
into the one side of the apparatus main body; and
other-side feedingmeans for feeding the processing gas
into the other side of the apparatus main body,
the processing gas humidifying heating means
includes: one-side humidifying heating means for
heating and humidifying the processing gas to be fed
into the one side of the apparatus main body in such
a way that the relative humidity of the processing gas
is maintainable to be 35% or more even when the
temperature of the processing gas is 95°C; and
other-side humidifying heating means for heating and
humidifying the processing gas to be fed into the other
side of the apparatus main body in such a way that the
relative humidityoftheprocessing gas ismaintainable
to be 35% or more even when the temperature of the
processing gas is 9 5 " ~ ,
the apparatus main body internal-temperature
measuring means includes one-side temperature
measuring means for measuring a temperature inside the
apparatus main body on the one side,
the processing gas flow-rate adjusting means
includes one-side gas flow-rate adjusting means for
adjusting the flow-rate of the processing gas to be fed
into the one side of the apparatus main body, and
the control means controls the one-side gas
flow-rate adjusting means on the basis of information
from the one-side temperature measuring means.
[Claim 6]
The coal deactivation processing apparatus
according to claim 1, characterized in that the
apparatus main body internal-environment adjusting
means includes:
apparatus main body internal-temperature
measuring means for measuring the temperature inside
the apparatus main body;
coolingwater flowmeans for causingcoolingwater
to flow inside the apparatus main body; and
control means for controlling the cooling water
flow means on the basis of information from the
apparatus main body internal-temperature measuring
means.
[Claim 7]
The coal deactivation processing apparatus
according to claim 6, characterized in that
the processing gas feeding means includes:
one-side feeding means for feeding the processing gas
into the one side of the apparatus main body; and
other-side feedingmeans for feeding the processing gas
into the other side of the apparatus main body,
the processing gas humidifying heating means
includes: one-side humidifying heating means for
heating and humidifying the processing gas to be fed
into the one side of the apparatus main body in such
a way that the relative humidity of the processing gas
is maintainable to be 35% or more even when the
temperature of the processing gas is 9 5 " ~ ; and
other-side humidifying heating means for heating and
humidifying the processing gas to be fed into the other
side of the apparatus main body in such a way that the
relative humidity ofthe processing gas is maintainable
to be 35% or more even when the temperature of the
processing gas is 95"C,
the apparatus main body internal-temperature
measuring means includes one-side temperature
measuringmeans for measuring atemperature inside the
apparatus main body on the one side,
the cooling water flow means includes one-side
flow means for causing the cooling water to flow inside
the apparatus main body on the one side, and
the controlmeans controlsthe one-side flowmeans
on the basis of information from the one-side
temperature measuring means.