JP6004389B2 - Marine fluidized bed equipment - Google Patents

Description

The present invention relates to a marine flow SoSo location used for floating to be installed in a ship or offshore.

Conventionally, in order to dry and classify raw materials having a wide particle size distribution such as coal, fluid classifiers that classify using a fluidized bed have been used (for example, Patent Documents 1 to 3).
Further, a fluidized bed gasification combustion furnace in which a gasification fluid phase furnace and a combustion fluidized bed furnace are integrated is used (for example, Patent Document 4).

Patent Document 1 is configured such that the residence time is adjusted by a partition plate and a partition plate, and overflows from an outlet weir at the downstream end to discharge dry matter to the discharge port, and the lower chamber can be opened and closed downward together with the fluidized bed. Disclosed is a fluidized bed dryer configuration.
In Patent Document 2, a chamber having a fluidized bed is divided into a drying chamber and a classification chamber by a partition plate on the upper side of two wind boxes via a perforated plate type gas dispersion plate, and a communication passage 19 is formed below the partition plate. Disclosed is a multi-chamber flow classifier.
Patent Document 3 divides the freeboard section and the air chamber into two or more chambers in the direction of movement of the coal so that the fluid coke oven raw material coal can move, and provides each air chamber with a gas supply duct capable of controlling the flow rate. In addition, a fluidized bed drying classifier having a gas discharge duct capable of controlling the flow rate in each free board portion is disclosed.
In Patent Document 4, a combustion furnace is provided with a second partition wall, and the fluidized bed portion is divided into a main combustion chamber and a heat recovery chamber, and the second partition wall 5 is connected to the main combustion chamber and the heat recovery at the lower connection port. Disclosed is a fluidized bed gasification combustion furnace with chambers in communication with each other.

Japanese Utility Model Publication No. 7-41397 JP 2000-197854 A Japanese Patent Laid-Open No. 9-104871 Japanese Patent Laid-Open No. 10-2543

However, all of the devices described in these documents are used on land while continuously supplying a fluidized bed to the inside of the device. It is not intended for use on ships affected by
The present invention provides a fluidized bed device for a ship that can stably and efficiently perform a gas treatment of, for example, exhaust gas from a main engine, while suppressing the inevitable hull fluctuation effect in a ship. It is aimed.

The fluidized bed device for a ship according to the first aspect of the present invention is a fluidized bed device mounted on a ship for processing the gas sent by the air feeding means through the solid particles, and the solid particles are accommodated therein. A casing having an opening through which the gas sent from the air supply means provided at the lower portion of the casing passes, and the casing provided in the casing in accordance with the shaking of the ship Provided with an excessive flow suppressing means for suppressing the solid particles from excessively flowing due to swinging of the fluid, and the excessive flow suppressing means suppresses a change in the thickness of the fluidized bed due to tilting of the casing due to swinging. And the degree of suppression is changed for each of the plurality of directions, and the excessive flow suppression means disperses the direction with the largest oscillation among the plurality of directions. Do not have an opening between the plate A non-opening partition plate for partitioning the inside of the housing, and an open partition plate for partitioning the direction in which the oscillation is small leaving an opening portion between the dispersion plate, and a plurality of the housings, The partition plate also serves as a side wall of the housing, and the solid particles are not supplied from the outside during use of the fluidizing device, and the solid particles are caused to flow by swinging the housing.
With the above-described configuration, it is possible to prevent so-called blow-through from occurring in the fluidized bed due to excessive flow of the solid particles, and to treat the gas and the solid particles in contact with each other. Here, “the solid particles are caused to flow by the shaking of the casing” does not mean that the solid particles are caused to flow only by the shaking of the casing. Meaning to be affected by.
Moreover, the change of thickness can be suppressed and the function requested | required of a fluidized bed can be maintained.
Further, in a so-called batch type flow apparatus in which solid particles are not supplied during use, it is necessary to suppress the solid particles from flowing excessively, but this can be suppressed by the excessive flow suppressing means.
Further, excessive flow of solid particles in a plurality of directions can be suppressed.
Further, excessive flow can be suppressed according to the degree of shaking in a plurality of directions.
In addition, when the shaking is very large, the solid particles in the housing can be removed via the opening while suppressing the movement of the solid particles in the direction in which the excessive flow due to the shaking of the housing is large. Can be moved.
Moreover, the number of partition plates can be reduced.

A fluidized bed device for a ship according to a second aspect of the present invention is a fluidized bed device mounted on a ship for processing the gas sent by the air feeding means through the solid particles, and the solid particles are accommodated therein. A casing having an opening through which the gas sent from the air supply means provided at the lower portion of the casing passes, and the casing provided in the casing in accordance with the shaking of the ship Provided with an excessive flow suppressing means for suppressing the solid particles from excessively flowing due to swinging of the fluid, and the excessive flow suppressing means suppresses a change in the thickness of the fluidized bed due to tilting of the casing due to swinging. And the degree of suppression is changed for each of the plurality of directions, and the excessive flow suppression means disperses the direction with the largest oscillation among the plurality of directions. The housing leaving an opening between the plate An opening partition plate that partitions the portion, and a non-opening partition plate that partitions the direction in which the oscillation is small so as not to have an opening portion between the dispersion plate, and a plurality of the housings, The partition plate also serves as a side wall of the housing, and the solid particles are not supplied from the outside during use of the fluidizing device, and the solid particles are caused to flow by swinging the housing.
With the above-described configuration, it is possible to prevent so-called blow-through from occurring in the fluidized bed due to excessive flow of the solid particles, and to treat the gas and the solid particles in contact with each other.
Moreover, the change of thickness can be suppressed and the function requested | required of a fluidized bed can be maintained.
Further, in a so-called batch type flow apparatus in which solid particles are not supplied during use, it is necessary to suppress the solid particles from flowing excessively, but this can be suppressed by the excessive flow suppressing means.
Further, excessive flow of solid particles in a plurality of directions can be suppressed.
Further, excessive flow can be suppressed according to the degree of shaking in a plurality of directions.
In addition, when the degree of swaying is moderate or lower, the solid particles can be appropriately moved in the direction of large swaying through the openings while preventing excessive flow by appropriate openings.
Moreover, the number of partition plates can be reduced.

A fluidized bed apparatus for a ship according to a third aspect of the present invention is a fluidized bed apparatus mounted on a ship for processing by passing the gas sent by the air feeding means through the solid particles, and the solid particles are accommodated therein. A casing having an opening through which the gas sent from the air supply means provided at the lower portion of the casing passes, and the casing provided in the casing in accordance with the shaking of the ship An excessive flow restraining means for restraining the solid particles from excessively flowing due to swinging of the housing, and providing a solid particle take-out port on a side portion of the housing. The central part of the outlet is provided with an inclination so as to be easily moved, and the solid particles are caused to flow by swinging the casing.
With the above-described configuration, it is possible to prevent so-called blow-through from occurring in the fluidized bed due to excessive flow of the solid particles, and to treat the gas and the solid particles in contact with each other.
In addition, the inclined structure facilitates the movement of the solid particles to the center of the outlet.

A fluidized bed apparatus for a ship according to a fourth aspect of the present invention is a fluidized bed apparatus mounted on a ship for processing the gas sent by the air feeding means through the solid particles, and the solid particles are accommodated therein. A casing having an opening through which the gas sent from the air supply means provided at the lower portion of the casing passes, and the casing provided in the casing in accordance with the shaking of the ship An excessive flow suppressing means that suppresses excessive flow of the solid particles due to the swinging of the casing, the casing is configured to be tiltable, and further includes tilting means for tilting the casing, The solid particles are caused to flow by movement.
With the above-described configuration, it is possible to prevent so-called blow-through from occurring in the fluidized bed due to excessive flow of the solid particles, and to treat the gas and the solid particles in contact with each other.
Further, the casing can be tilted by the tilting means .

According to the ship fluidized bed apparatus of the present invention, it is possible to suppress the influence of ship swaying on the solid-gas mixed phase flow composed of gas and solid particles, and to efficiently process the gas as in the upright state. .
By suppressing the change in thickness and maintaining the function required for the fluidized bed, it is possible to efficiently process the gas.
Moreover, even if the solid particles are not continuously supplied during processing, as in a so-called batch type flow device, gas processing can be efficiently performed by suppressing excessive flow of solid particles. It becomes possible.
Moreover, it becomes possible to process gas efficiently by suppressing the excessive flow of solid particles in a plurality of directions. In this case, if it is configured to suppress excessive flow according to the degree of shaking, it is possible to perform gas processing more efficiently.
If the degree of suppression of the excessive flow suppression means is variable, it is possible to adjust the degree of suppression to an appropriate level according to the situation and perform gas treatment efficiently.
If the solid particles can move in the housing through the opening, the solid particles can be easily taken out from the housing and supplied to the housing, and the particles in the housing can be easily exchanged. It becomes possible. In this case, if an opening is provided in the lower part of the partition plate that controls the oscillation of the solid particles in the direction of small fluctuation, in the case where the fluctuation is very large, the effect of suppressing the excessive flow of the fluctuation is enhanced while the particle exchange is performed. Can be easily performed.
In addition, if an opening is provided at the lower part of the partition plate that controls the oscillation of the solid particles in the direction of large fluctuation, when the degree of fluctuation is moderate or lower, the casing due to the movement of the ship is moved appropriately. It is possible to cause the solid particles to flow appropriately using the swinging of the body.
If the side wall of the housing is used as a partition plate, the structure of the marine fluidized bed apparatus can be simplified.
If it is set as the structure which suppresses an excessive flow by a partition plate, it will become possible to process gas efficiently. In this case, if the height of the solid particles is set so as not to get over the partition plate when the ship is shaken, the function of the partition plate as the excessive flow suppressing means can be sufficiently exhibited.
Solid particles can be easily exchanged if the configuration is such that the solid particles easily move to the center of the outlet, the configuration includes a tilting means for tilting the housing, and the configuration allows the solid particles to be exchanged by exchanging the units. It becomes possible.
If solid particles are used as a desulfurizing agent and the excessive flow is suppressed, the exhaust gas can be efficiently desulfurized .

(A ) Front schematic diagram of the state of the ship of the marine flow device according to the first embodiment of the present invention, (b) Front schematic diagram of the state in which the ship is tilted The perspective schematic diagram which looked at the flow apparatus for ships concerning the 2nd Embodiment of this invention from the side surface direction (A) Front schematic diagram of the ship flow device (example 1) according to the second embodiment of the present invention in a horizontal state, (b) Front schematic diagram of a state where the solid particles are taken out by tilting the housing. The perspective schematic diagram which looked at the flow apparatus for ships of Fig.3 (a) from the side surface direction (A) Schematic diagram of a front view of a ship in a horizontal state (example 2) of a ship flow device according to a second embodiment of the present invention, (b) a dispersion plate viewed from the direction of arrow A in (a) Side view diagram The perspective schematic diagram which looked at the flow apparatus for ships of Fig.5 (a) from the side surface direction The perspective schematic diagram which looked at the flow apparatus (example 3) for ships which concerns on the 2nd Embodiment of this invention from the side surface direction The perspective schematic diagram which looked at the flow apparatus for ships (example 4) which concerns on the 2nd Embodiment of this invention from the side surface direction The perspective schematic diagram which looked at the flow apparatus (example 5) for ships concerning the 2nd Embodiment of this invention from the side surface direction (A) The perspective schematic diagram which looked at the unit of the ship fluidizer (example 3) which concerns on the 3rd Embodiment of this invention from the side surface direction, (b) Fluidized bed ship which arranges the unit of (a) in multiple numbers. Perspective schematic view of the device viewed from the side (A) Schematic diagram of a state where the ship is in a horizontal state, explaining a blow-out caused by the influence of hull shaking when the fluidized bed apparatus is used in the ship, (b) Schematic diagram of a state where the ship is tilted

(First embodiment)
An embodiment of a ship flow device of the present invention will be described below with reference to the drawings.
One of the methods for treating exhaust gas from a main engine (engine) mounted on a ship is a dry treatment using a fluidized bed apparatus. FIG. 11A is a schematic view of a state where the ship is in a horizontal state, explaining the blow-out caused by the influence of the hull motion when the fluidized bed apparatus is used in the ship, and FIG. .

  A marine fluidized bed apparatus 100 introduces exhaust gas 1 sent from an air feeding means (not shown) into a housing 4 through an opening 3 of a dispersion plate 2, and includes a fluidized bed containing solid particles 5 in the housing 4. The exhaust gas 1 is discharged after recovering harmful components such as sulfur components contained in the exhaust gas 1 by contacting them.

  As shown to Fig.11 (a), when the ship is used in the state where a ship is horizontal, the solid particle 5 and exhaust gas 1 which comprise a fluidized bed are made to contact, and harmful components are collect | recovered. be able to. However, when the marine fluidized bed apparatus 100 is used in a marine vessel, it is affected by rolling (rolling) and pitching (pitching). When the marine fluidized bed apparatus 100 is tilted, there is a possibility that a region where the solid particles 5 in the housing 4 are reduced due to the tilt of the marine vessel is generated as shown by an alternate long and short dashed ellipse in FIG. Once such a region occurs, a so-called blow-through occurs in which the exhaust gas 1 enters the housing 4 in a concentrated manner from this region. For this reason, as a result of exhaust gas 1 being discharged from the fluidized bed device 100 for ships without sufficiently contacting with the solid particles 5, the exhaust gas 1 and the solid particles 5 cannot be contacted to recover harmful components. The problem arises.

In order to solve the above problem, the fluidized bed apparatus of the present invention is provided with an excessive flow suppressing means for suppressing the solid particles from flowing excessively due to the swinging of the casing accompanying the swinging of the ship. Thereby, it is possible to suppress the occurrence of blow-by due to excessive flow of solid particles, and to efficiently recover harmful components from the exhaust gas.
In the following embodiments, the case where the marine fluidized bed apparatus 10 is used for desulfurization of desulfurization from the exhaust gas 1 will be described. However, the use of the marine fluidized bed apparatus 10 is not limited to this, and it can be used for the treatment of other gases or can be further provided with a heat exchange function.

FIG. 1A is a schematic front view of a marine flow device according to the first embodiment of the present invention in a horizontal state, and FIG. 1B is a schematic front view of a state in which the marine vessel is tilted. . FIG. 2 is a schematic perspective view of the marine fluidized bed apparatus shown in FIG. In order to describe the partition plate in the housing, solid particles are omitted in FIG.
As shown in FIGS. 1 (a) and 1 (b), a fluidized bed apparatus 10 for a ship according to the present embodiment uses an exhaust gas (gas) 1 sent from a main engine (not shown) as an air supply means as solid particles. 5, which is mounted on a ship to be processed by passing through 5, a housing 4 in which solid particles 5 are housed, and an opening provided at the lower part of housing 4 through which exhaust gas 1 sent from the main engine passes. 3 and a partition plate provided inside the casing 4 as an excessive flow suppressing means for suppressing the solid particles 5 from excessively flowing due to the swinging of the casing 4 accompanying the movement of the ship. 6 is provided.

When the air supply engine is the main engine of the ship, the ship fluidized bed apparatus 10 can release the exhaust gas 1 supplied from the main engine after desulfurization by using a desulfurizing agent as the solid particles 5.
As the dispersion plate 2, a perforated plate or the like capable of sending a gas such as the exhaust gas 1 into the housing 4 while preventing particles from falling down can be used. The opening 3 may have an appropriate size and shape for the dispersion plate 2 to perform the above function.
The marine fluidized bed apparatus 10 is used on a marine vessel, and the solid particles 5 are not supplied from the outside during its use.

The housing 4 includes solid particles 5 inside thereof, and the solid particles 5 function as a fluidized bed 7. The inside of the housing 4 is partitioned into a plurality of chambers 4-1 to 4-5 by a partition plate 6 disposed so as to leave a space in the upper portion at a constant interval in the width direction W of the ship.
With this configuration, it is possible to suppress the change in the thickness T of the solid particles 5 due to the influence of the ship's rocking when the solid particles 5 are flowing when the marine fluidized bed apparatus 10 is used. . The partition plate 6 may be any plate that can suppress excessive flow of the solid particles 5. For example, a plate having other functions such as a heat exchange function may be used.

As shown in FIG. 11 (b), when the width of the casing 4 is W and the inclination is θ, the difference ΔT (100) in the thickness T in the fluidized bed 7 of the marine fluidized bed apparatus 100 is ΔT (100). = W × tan θ.
On the other hand, in the marine fluidized bed apparatus 10 of the present embodiment, the casing 4 is equally divided into five at intervals P by four partition plates 6 (P = W / 5). For this reason, the width P of each chamber 4-1 to 4-5 inside the housing 4 is 1/5 of the width of the housing 4. Therefore, when the width of the casing 4 is W and the inclination is θ, the difference ΔT (10) in the thickness T in the fluidized bed 7 is ΔT (10) = P × tan θ = (W / 5) × tan θ = ΔT (100) / 5.
Thus, the partition plate 6 can suppress the solid particles 5 from excessively flowing due to the shaking of the ship. For this reason, it is possible to suppress the occurrence of blow-through in the fluidized bed 7 due to this excessive flow. As a result, since the contact between the solid particles 5 and the exhaust gas 1 can be maintained, the exhaust gas 1 can be efficiently desulfurized by the solid particles 5.
In addition, although the example which provides the partition plate 6 at equal intervals was shown here, it is not essential to set it as equal intervals, and if it is an interval which can suppress that a flow-through arises in the fluidized bed 7, it will be equal intervals. You don't have to.

  Here, the “thickness T” of the layer of the solid particles 5 is the upper end from the lower end 5L to the upper end of the solid particles 5 from the dispersion plate 2 when the marine fluidized bed apparatus 10 is operated in a static state (no shaking). The distance up to 5H. Further, the “upper end 5H” of the solid particles 5 refers to the distance to the solid particles 5 that are located farthest from the dispersion plate 2 during operation in a static state. Further, “excessive flow” means that the solid particles 5 flow as much as a portion having a small thickness T is generated due to the flow and the fluidized bed 7 is blown away.

In order to prevent the fluidized bed 7 from being blown through, the thickness T of the fluidized bed 7 is changed to the gas flow rate, the particle density, the particle diameter, and the particle layer thickness in the static state in the state where the casing 4 is inclined. It is necessary to maintain a predetermined value that depends on it. That is, ΔT = P × tan 10 ° in the inclined state shown in FIG. 1B needs to be equal to or less than a value corresponding to a predetermined value.
From this relationship, it can be seen that the interval P between the partition plates 6 may be determined.

  As described above, according to the marine fluidized bed apparatus 10 of the present embodiment, the occurrence of blow-through in the fluidized bed 7 due to the excessive flow of the solid particles 5 is suppressed, and the exhaust gas 1 is efficiently processed. It is possible to perform well.

(Second Embodiment)
In 1st Embodiment, it demonstrated that the influence by the shaking of a ship can be suppressed by providing a partition plate inside the housing | casing of the fluidized-bed apparatus for ships. In the present embodiment, a marine fluidized bed apparatus that facilitates the discharge and supply of solid particles will be described below with reference to the drawings. Components having the same functions as those of the members described in the above-described embodiments are denoted by the same reference numerals, and description thereof is omitted below.

  FIG. 3A is a schematic front view of a marine fluidity device (example 1) according to a second embodiment of the present invention in a state where the marine vessel is in a horizontal state. It is a front schematic diagram of the state taken out. FIG. 4 is a schematic perspective view of the marine flow device of FIG. In order to describe the partition plate in the housing, solid particles are omitted in FIG.

As shown in FIGS. 3 and 4, the marine fluidized bed apparatus 20 of the present embodiment is solid so that its upper end 5H has a height 6H or less at the upper end of the partition plate 6 and a height 6L or more at the lower end. Particles 5 are filled. Further, the height 6H of the upper end of the partition plate 6 is set to a height at which the solid particles 5 do not exceed the partition plate 6 even if the ship is shaken. Here, “even if the ship is shaken” means the normally assumed shake in the situation where the ship fluidized bed apparatus 20 is used. Specifically, it is about ± 10 ° with respect to the horizon. It means upset.
According to said structure, the partition plate 6 can suppress the excessive flow of the solid particle 5 by rocking | fluctuation of the housing | casing 4 accompanying ship rocking.

  The marine fluidized bed apparatus 20 according to the present embodiment is the marine fluidized bed according to the first embodiment in that the partition plate 6 partitions the inside of the housing 4 leaving an opening 8 between the partition plate 6 and the distribution plate 2. It differs from the layer device 10. By providing the opening 8, the solid particles 5 can be easily performed through the opening 8 when being supplied to and discharged from the housing 4.

That is, since the partition plate 6 is provided with its lower end separated from the dispersion plate 2, the chambers 4-1 to 4-5 inside the housing 4 are communicated with each other by the opening 8 at the lower portion thereof. ing.
For this reason, as shown in FIG. 3B, the solid particles 5 can be easily removed from the outlet 9 provided at the opposite end by lifting one end of the case 4 configured to be tiltable by the tilting means 11. Can be discharged. Therefore, the exchange of the solid particles 5 can be easily performed.

  Fig.5 (a) is a front schematic diagram of the state of the ship of the ship flow apparatus (example 2) which concerns on this embodiment in a horizontal state, FIG.5 (b) is from the direction of arrow A of figure (a). It is a side surface schematic diagram which shows the disperse | distributed plate seen. FIG. 6 is a schematic perspective view of the marine fluidizer of FIG. In order to explain the dispersion plate in the housing, solid particles are omitted in FIG.

As shown in FIG. 5A, the dispersion plate 12 is not different from the dispersion plate 2 when viewed from the front, but when viewed from the side as shown in FIG. 5B, a plurality of inclined surfaces ( The shape in which peaks (convex portions) and valleys (concave portions) are formed by the inclined portions is different from that of the dispersion plate 2. Further, at the side of the housing 4, an outlet 9 for the solid particles 5 is provided in each of the concave portions of the dispersion plate 12. With this configuration, the solid particles 5 gathered in the valleys (concave portions) down the inclined surface of the dispersion plate 12 by gravity can be easily taken out from the outlet 9.
As described above, the marine fluidized bed apparatus 30 shown in FIG. 5 and FIG. 6 promotes the movement of the solid particles 5 at the time of replacement by the dispersion plate 12 having a plurality of inclined surfaces, and discharges the particles. Making it easier.

FIG. 7 is a schematic perspective view of the marine fluidity device (example 3) according to this embodiment as seen from the side surface direction. In order to explain the partition plate in the housing, solid particles are omitted in the figure.
As shown in the figure, the marine fluidized bed apparatus 40 is provided with the partition plates 6 in a plurality of directions. As described above, by setting the direction in which the partition plates 6 are arranged in a plurality of directions, it is possible to suppress an excessive flow of the solid particles 5 due to the swinging of the casing 4 due to the swinging of the ship in a plurality of directions.

  Further, as shown in FIG. 7, the partition plate 6 of the marine fluidized bed apparatus 40 includes a plurality of partition plates 6X arranged in parallel in the X direction at intervals PX and a plurality of partitions arranged in the Y direction at intervals PY. Partition plate 6Y. The intervals PX and PY may be changed in accordance with the roll (X direction) and pitch (Y direction) of the ship indicated by double-sided arrows in the figure. In this way, by changing the distances PX and PY, the degree of inhibition against excessive flow of the solid particles 5 can be increased for each direction in which the partition plate 6X and the partition plate 6Y are arranged (X direction and Y direction in FIG. 7). Can be changed.

  For example, in FIG. 7, by changing PX, the degree of suppression of excessive flow of the solid particles 5 due to the rolling (rolling) of the ship is changed, and by changing PY, the solid due to the pitching (shipping) of the ship is changed. The degree of suppression of excessive flow of the particles 5 changes. In both PX and PY, the degree of inhibition decreases when the interval is increased, and the degree of inhibition increases when the interval is reduced. Usually, the roll is larger than the pitch, so that PX is smaller than PY.

Further, when adopting a configuration in which the partition plates 6 are arranged in a plurality of directions, in addition to or separately from changing the interval between the partition plates 6, by changing the height of the opening 8 of the partition plate 6. Also, the degree of suppression of excessive flow of the solid particles 5 in each direction can be changed. The degree of suppression may be either manually changed or automatically changed.
For example, the height of the opening 8 is manually adjusted according to the type and amount of the solid particles 5, and the height of the opening 8 is automatically adjusted using a motor or the like according to the sway of the ship or the amount of gas. A configuration in which manual and automatic are combined, such as a configuration to be adjusted, may be used.
Further, when the opening 8 is fully opened by being driven by a motor or the like at the time of taking out, the solid particles 5 can be taken out easily.

  FIG. 8 is a schematic perspective view of the marine fluidity device (example 4) according to this embodiment as seen from the side surface direction. In the figure, partition plates 6X are arranged in parallel in the X direction (rolling direction), and partition plates 6Y are provided in the Y direction (pitching direction). The upper end height 6XH of the partition plate 6X and the upper end height 6YH of the partition plate 6Y are the same. However, the lower end height 6XL of the partition plate 6X is different from the upper end height 6YL of the partition plate 6Y. Specifically, the lower end of the partition plate 6X is provided in contact with the dispersion plate 2 (6XL = 0), whereas the lower end of the partition plate 6Y is provided apart from the dispersion plate 2 (6YL). = Height of the opening 8).

Thus, in the marine fluidized bed apparatus 50, the partition plate 6X that partitions the direction X in which the oscillation inside the casing 4 is large does not have the opening 8 between the dispersion plate 2 and the interior of the casing 4 The partition plate 6 that partitions the direction Y in which the rocking is small is configured to partition with the dispersion plate 2 leaving the opening 8.
According to said structure, it can prevent that the solid particle 5 inside the housing | casing 4 flows excessively by rolling. The configuration shown in FIG. 8 is preferably used when the ship shakes very much.

  FIG. 9 is a schematic perspective view of the marine fluidity device (example 5) according to the present embodiment as seen from the side surface direction. In the marine fluidized bed apparatus 55 shown in the figure, the lower end of the partition plate 6Y is provided in contact with the dispersion plate 2 (6YL = 0), whereas the lower end of the partition plate 6X is separated from the dispersion plate 2. (6XL = the height of the opening 8). This is different from the marine fluidized bed apparatus 50 shown in FIG.

As described above, in the marine fluidized bed apparatus 55, the partition plate 6X arranged in the X direction (rolling direction) with large fluctuations is opened to partition the inside of the housing 4 while leaving the opening 8 between the dispersion plate 2. The partition plate 6Y arranged in the Y direction (pitching direction) with small fluctuation is configured as a non-opening that partitions the inside of the housing 4 so as not to have the opening 8 between the partition plate 2 and the partition plate 6Y.
In the rolling direction, since the ship is greatly shaken, the opening 8 can be provided in the lower part to actively use the shake. Further, since the partition plate 6 is provided on the opening 8, it is possible to prevent the solid particles 5 from flowing too much. Therefore, it is possible to realize an appropriate flow of the solid particles 5 using the fluctuation of the ship in the rolling direction.
On the other hand, since there is little fluctuation in the pitching direction, even if the lower part of the partition plate 6Y is opened, it cannot be expected to contribute to the flow of the solid particles 5, and therefore it is assumed that there is no opening. The configuration shown in FIG. 9 is preferably used in the case where the ship is moderately shaken and can be used for an appropriate flow of the solid particles 5.

As described above, the height of the opening 8 of the partition plate 6 is configured to be adjustable. For this reason, it is good also as changing the height of the opening part 8 according to a grade to the fluctuation of a ship, and setting it as the structure shown in FIG. 8 and FIG.
Further, as shown in FIGS. 8 and 9, by making one of the partition plate 6X and the partition plate 6Y in the X and Y directions open, it is easy to unitize the housing 4.

  Note that the plurality of directions in which the partition plates 6 are arranged are not limited to orthogonal directions as shown in FIGS. 7, 8, and 9. However, since the excessive flow of the solid particles 5 is mainly caused by the rolling and pitching of the ship, as shown in FIGS. 7, 8, and 9, when the partition plates 6 are arranged in a plurality of directions, they are orthogonal to each other. The direction is preferred.

(Third embodiment)
FIG. 10A is a schematic perspective view of the unit according to the present embodiment as viewed from the side, and FIG. 10B is a diagram of a marine fluidized bed apparatus including a plurality of units of FIG. It is a perspective schematic diagram. In order to describe the partition plate in the housing, solid particles are omitted in each drawing.

  As shown in FIG. 10 (a), the unit 60 of the present embodiment has a dispersion plate 2 at the lower part thereof, and the partition plate 6 leaves an opening 8 between the dispersion plate 2 and the interior thereof. Is divided into chambers 4-1 to 4-5, and the housing 8 in which the opening 8 and each chamber are filled with solid particles is unitized. As shown in FIG. 10B, the unit 60 is configured to be detachable from the marine fluidized bed apparatus 70.

As shown in FIG. 10B, when the marine fluidized bed apparatus 70 is configured by arranging a plurality of units 60, the side wall 61 on the side in contact with the adjacent unit 60 among the side walls of the unit 60 is open. This also serves as the partition plate (see the partition plate 6X in FIG. 8).
The direction in which the units 60 are arranged may be either the horizontal direction or the front-rear direction of the ship. As described in the second embodiment, if the units 60 are arranged in the front-rear direction of the ship, the solid particles can be appropriately flowed by using the shaking in the horizontal direction (rolling direction).

According to the marine fluidized bed apparatus 70 including a plurality of units 60, in the desulfurization of the exhaust gas of the marine vessel, the unit 60 is exchanged during the processing step of passing the gas through the solid particles and processing the solid gas. The particles 5 can be exchanged. For this reason, the exchange of the solid particles 50 can be performed quickly, and the performance maintenance management of the fluidized bed apparatus 70 for ships becomes easy.
Further, when there is a difference in the degree of wear of the solid particles 5 depending on the position of the unit 60 constituting the marine fluidized bed apparatus 70, it is possible to replace only the unit 60 with a high degree of wear. For this reason, in addition to the improvement of workability by unitization, the economy is also improved.

  The present invention can be implemented as a ship provided with each ship fluidized bed device according to the first to third embodiments described above.

The present invention relates to a fluidized bed for treating exhaust gas from an engine mounted on a ship, and brings about reduction of the influence of ship hulling and facilitation of solid particle exchange. The present invention is useful not only for exhaust gas treatment but also for mounting a fluidized bed on a ship for other purposes.
The present invention can also be used for, for example, an offshore floating body in which excessive flow of solid particles occurs due to the shaking.

1 Exhaust gas (gas)
2, 12 Dispersion plate 4 Housing 5 Solid particles 6, 6X, 6Y Partition plate (excess flow suppression means)
7 fluidized bed 8 opening 9 outlet 10, 20, 30, 40, 50, 55, 70 marine fluidized bed apparatus 11 tilting means 60 unit 61 side wall

Claims (4)

A fluidized bed apparatus mounted on a ship for passing gas processed by an air supply means through solid particles for processing,
A housing containing the solid particles therein;
A dispersion plate having an opening through which a gas sent from the air supply means provided in the lower part of the housing passes;
Provided in the inside of the housing, provided with excessive flow suppression means for suppressing the solid particles from excessively flowing due to the swing of the housing accompanying the motion of the ship,
The excessive flow suppression means suppresses a change in the thickness of the fluidized bed due to the casing tilting by swinging, and is provided in a plurality of directions, and the degree of suppression is changed for each of the plurality of directions. Configured
The excessive flow suppressing means includes a non-opening partition plate that partitions the inside of the housing so that the direction in which swinging is large among the plurality of directions does not have an opening portion between the dispersion plate and a swing plate. An opening partition plate that partitions the direction with small movement with the dispersion plate leaving an opening,
A plurality of the housings, the non-opening partition plate also serves as a side wall of the housing,
The solid particles are not supplied from the outside during use of the flow device,
A marine fluidized bed apparatus, wherein the solid particles are caused to flow by swinging the casing. A fluidized bed apparatus mounted on a ship for passing gas processed by an air supply means through solid particles for processing,
A housing containing the solid particles therein;
A dispersion plate having an opening through which a gas sent from the air supply means provided in the lower part of the housing passes;
Provided in the inside of the housing, provided with excessive flow suppression means for suppressing the solid particles from excessively flowing due to the swing of the housing accompanying the motion of the ship,
The excessive flow suppression means suppresses a change in the thickness of the fluidized bed due to the casing tilting by swinging, and is provided in a plurality of directions, and the degree of suppression is changed for each of the plurality of directions. Configured
The excessive flow suppression means includes an opening partition plate that partitions the interior of the housing leaving an opening between the dispersion plate and the direction in which the swing is large among the plurality of directions, and the swing is small. A non-opening partition plate that partitions the direction so as not to have an opening between the dispersion plate,
A plurality of the housings, the non-opening partition plate also serves as a side wall of the housing,
The solid particles are not supplied from the outside during use of the flow device,
A marine fluidized bed apparatus, wherein the solid particles are caused to flow by swinging the casing. A fluidized bed apparatus mounted on a ship for passing gas processed by an air supply means through solid particles for processing,
A housing containing the solid particles therein;
A dispersion plate having an opening through which a gas sent from the air supply means provided in the lower part of the housing passes;
Provided in the inside of the housing, provided with excessive flow suppression means for suppressing the solid particles from excessively flowing due to the swing of the housing accompanying the motion of the ship,
The solid particle outlet is provided at the side of the casing, and the shape of the dispersion plate is configured to be inclined so that the solid particle can easily move to the center of the outlet,
A marine fluidized bed apparatus, wherein the solid particles are caused to flow by swinging the casing. A fluidized bed apparatus mounted on a ship for passing gas processed by an air supply means through solid particles for processing,
A housing containing the solid particles therein;
A dispersion plate having an opening through which a gas sent from the air supply means provided in the lower part of the housing passes;
Provided in the inside of the housing, provided with excessive flow suppression means for suppressing the solid particles from excessively flowing due to the swing of the housing accompanying the motion of the ship,
The casing is configured to be tiltable, and further includes tilting means for tilting the casing,
A marine fluidized bed apparatus, wherein the solid particles are caused to flow by swinging the casing.