JP2003294223A - Disposal method for fly ash, incineration system, and ash grain generator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To preclude fly ash from being blown up in the atmosphere, to simplify equipment and treatment, and to reduce a required energy consumption, in waste disposal for the fly ash accumulated in a sealed fly ash collecting site. <P>SOLUTION: When the fly ash collected in the sealed collection site a2 is taken out, the fly ash is moved to an inner side of a container 17 communicated sealedly with the collection site a2, the ash is agitated thereafter by agitation members 27a, 27b while supplying water to the fly ash in the container 17 to be transformed into the large number of solid ash grains having a particle size of about several mm to several cm, and the solid ash grains are taken out outside the container 17. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for treating fly ash contained in smoke or the like discharged from a combustion furnace, an incinerator system for implementing this method, and an ash particle generator.

[0002]

2. Description of the Related Art There is an incineration system in which a flue is extended from an incinerator for refuse, sewage sludge, etc., and its end is a chimney, and a fly ash separation / collection device such as a bag filter is provided in the middle of the flue. is doing. The fly ash separation and collection device functions to separate and collect fly ash contained in smoke discharged from the incinerator, and the fly ash was accumulated in a closed collection place in a certain amount or more. At this time, workers take it out and store it in a nearby storage place, and when it reaches a properly gathered amount, it is loaded on a carrier, transported to a landfill disposal site, and buried. Here, fly ash refers to a fine powder contained in smoke, which is heavier than air and easily floats in the atmosphere, and will be used in the same concept below.

[0003]

The fly ash collected by the above-mentioned fly ash separation and collection apparatus may be taken out and landfilled without any treatment. Not only does fly ash fly up into the atmosphere, which deteriorates the working environment, but it also causes problems such as the diffusion of dioxin, which is a harmful substance in fly ash, to the surroundings. In order to solve this problem, fly ash with water added is pushed into the mold with a screw conveyor to form a specific shape, making the fly ash heavier than air and making it easier to handle. However, such processing has the disadvantage of increasing the cost in terms of energy consumption as well as the manufacturing and maintenance of the apparatus therefor. The present invention is intended to deal with such a situation, and if necessary, in the case of disposing of fly ash that tends to float, it is not necessary to process fly ash itself in an open atmosphere, and The purpose is to reduce energy consumption.

[0004]

In order to achieve the above object, in the method for treating fly ash according to the present invention, when the fly ash collected in a closed collecting place is taken out, first, the fly ash is made dense with the collecting place. The fly ash is moved inwardly of the communicated container and then stirred by a stirring member while supplying water to the fly ash in the container, and the fly ash has a large number of solid ash particles having a particle size of about several mm to several cm. The solid ash particles are changed into particles, and the solid ash particles are taken out of the container. According to this, fly ash efficiently becomes solid ash particles by a simple treatment, the specific gravity significantly increases and it does not rise in the atmosphere, and the whole volume is drastically reduced and the size of one lump increases and it is handled. Will be excellent. Further, such processing is carried out by a simple apparatus and requires less energy as compared with the conventional molding processing.

Next, in the incineration system according to the present invention, in the incineration system equipped with a fly ash separation / collection device for separating and collecting fly ash flowing in the flue extended from the incinerator, The fly ash collected by the separation and collection device is received, water is supplied, and the mixture is stirred to have a particle size of several mm to several cm.
In addition to producing a large number of solid ash particles, an ash particle generating device is provided which can take out the solid ash particles to the outside. According to this, the fly ash collected by the fly ash separation / collection device in the incineration system is processed in the same manner as in the above case, and the same effect as described above can be obtained.

The present invention is embodied as follows. That is,
As described in claim 1, a container for receiving the fly ash collected by the fly ash separating and collecting apparatus, a water supply means for supplying water into the container, and agitating the fly ash in the container. And a take-out means for taking out the contents in the container to the outside. The water supply means and the agitating means have a large number of fly ash particles in the container having a particle size of about several mm to several cm. Of the solid ash particles, the solid ash particles being removed from the extraction means. According to this, the related operations of the water supply means and the stirring means make the water supply and the stirring process labor-saving.

According to a second aspect of the present invention, the inner space of the container is hermetically sealed, and the container and the fly ash separation collection device are hermetically communicated with each other through a fly ash passage portion. The fly ash collected in the fly ash separation / collection device flows into the container by its own weight. According to this, when the fly ash collected by the fly ash separating and collecting apparatus is moved into the container, it does not leak out of the fly ash separating and collecting apparatus, the fly ash passage portion and the container.

At this time, as described in claim 3, the take-out means is an opening and closing port formed on the bottom surface of the container. According to this, the solid ash particles in the container are taken out by gravity through the opening / closing opening.

Next, in the ash particle production apparatus according to the present invention, as described in claim 4, a container for receiving fly ash contained in the combustion gas, and a water supply means for supplying water into the container. A stirring means for stirring the fly ash in the container,
And a take-out means for taking out the contents in the container to the outside, and the water supply means and the agitating means use fly ash in the container as a large number of solid ash particles having a particle size of about several mm to several cm. The solid ash particles are taken out from the take-out means. According to this, the same effect as the invention according to claim 1 can be obtained.

The present invention is embodied as follows. That is,
As described in claim 5, the container is formed in a vertically oriented tubular shape, and a vertically oriented rotation drive shaft is provided at a central portion of the tubular shape.
The lower end of the rotary drive shaft is brought close to the bottom surface of the container, and an elongated stirring member extending in the radial direction of the rotary drive shaft is provided at the lower end. According to this, the resistance due to the rotation of the stirring member becomes small, and a large number of solid ash particles can be reliably generated with a small amount of power.

At this time, as described in claim 6, the agitating member is composed of a plate member having a relatively narrow width, and the plate member is gradually moved up by the rotational movement around the rotary drive shaft toward the side where fly ash is gradually pushed up. It is recommended that the structure be inclined. According to this, during the rotation of the plate member, the upper surface of the plate member promotes the rotation of each solid ash particle in contact with the plate member and each solid ash particle in the vicinity thereof, and a large number of solid ash particles are generated. It will grow efficiently.

Further, as described in claim 7, the water supply means supplies water from a side wall of the container to a position not more than about 1/2 of a radius of the container at a position of a fly ash upper surface in the container. Eggplant According to this, water will be supplied to the position where fly ash moves relatively violently, and dispersion of water throughout the fly ash in the container will be more efficient than when water is supplied to other positions. .

[0013]

1 is a plan view showing an embodiment of an incineration system according to the present invention, FIG. 2 is a side view showing a fly ash separating and collecting device of the incineration system, and FIG. 3 is a fly ash separating device. FIG. 4 is a side view showing a part of a stirring means of the ash particle generating device, and FIG. 5 is a side view showing a part of the stirring means of the ash particle generating device. FIG. 6 is a plan view showing the operation of the stirring means.

In FIG. 1, reference numeral 1 denotes a combustion furnace, and a flue 2 extends from the combustion furnace 1. A comparison is made in the middle of the flue 2 with the smoke flowing in the flue 2. A cyclone 3 for separating and collecting solid pieces and powders having a large specific gravity, a cooling device 4 for cooling combustion gas flowing in the flue 2, and a powder having a relatively small specific gravity such as fly ash. A bag filter device 5 of ash separation and collection means for separating and collecting, and an exhaust device 6 for sucking the combustion gas in the combustion furnace 1 through the flue 2 and flowing it in a specific direction.
Is provided.

Explaining each of the above parts, the combustion furnace 1
Includes a primary combustion chamber 1a and a secondary combustion chamber 1b,
A supply opening / closing port n1 is provided at the front of the primary combustion chamber 1a for externally injecting an incineration material, and a smoke outlet n2 is provided at the rear of the secondary combustion chamber 6 for discharging combustion gas and the like. (For example, the incinerator of Japanese Patent Application No. 11-306456 is used).

At this time, the primary combustion chamber 1a and the secondary combustion chamber 1b
Are communicated with each other through a relatively narrow gas passage, and the secondary combustion chamber 1b is internally provided with a waste heat boiler 7 for generating steam by the heat present therein.

The cyclone 3 is for the combustion gas discharged from the secondary combustion chamber 1b to the flue portion 2a to flow in,
Combustion gas that has flowed in is swirled while being guided by the inner surface of the cylindrical main body 3a, and the centrifugal force generated by this swirling is used to separate powder with a relatively large specific gravity from the smoke.
The powder or the like separated in this way is dropped by its own weight and collected in a container (not shown) below the main body 3a, while the combustion gas after removal of the powder and the like is collected on the rear flue portion 2b. It is supposed to be released inside.

The cooling device 4 comprises an air heat exchanger 8 and an air supply means 9 for supplying cooling air to the air heat exchanger 8. At this time, the cooling air smokes in the air heat exchanger 8. The temperature is increased by cooling the air, and the air whose temperature has risen in this way is used as, for example, combustion air for the combustion furnace 1 or the like.

As shown in FIG. 2, the bag filter device 5 is provided with a box-shaped main body 5a whose inside is a hermetically sealed space, and a horizontal partition wall 10 at the upper part of the main body 5a.
To form a lower shielding space a and an upper shielding space b, and to form an appropriate number of through holes b1 in the partition wall 10 to form an elongated bag 11 forming a filter surface in each through hole b1. A smoke inlet a1 communicating with the flue portion 2c is provided in the lower shielded space a, and a smoke outlet b2 communicated with the rear flue portion 2d is provided in the lower shielded space a, and the lower side The lower part of the shielded space a is formed into a hopper shape to form a collection place a2 where fly ash contained in smoke is accumulated, and the lower shielded space a
In addition to forming a fly ash drop passage portion 12 at the lowermost portion, a shutter device 13 for changing the inside of this passage portion 12 to either a blocked state or an open state is provided.

At this time, the shutter device 13 is a shutter plate 13b which is movable in a direction traversing the fly ash drop passage portion 12 and a cylinder device 13a for horizontally driving the shutter plate 13b.
Further, a sensor 14 for detecting fly ash is provided in the middle of the height of a vertical wall portion a3 surrounding the front side of the lower shielded space a, and a vibrator is provided on the inclined wall portion 12a of the fly ash fall passage portion 12. I am wearing 15.

The exhaust device 6 sucks the combustion gas generated in the combustion furnace 1 from the side of the flue 2d and causes it to flow out from the chimney 2e forming the end of the flue 2a.
And a motor 6b for driving the same.

Reference numeral 16 is an ash particle producing device provided below the bag filter 5. As shown in FIG. 2, the ash particle generator 16 includes a vertically-oriented cylindrical container 17 for receiving fly ash collected by the bag filter 5, and a water supply means 18 for supplying water into the container 17. And a stirring means 19 for stirring the fly ash in the container 17.

Explaining each part of the ash particle generator 16, the container 17 has a main body 17a having a bottom surface c1 having a diameter of about 600 mm and a side surface c2 having a height of about 400 mm, and an upper portion of the main body 17a. A cover plate 17b that covers the opening and makes the inside airtight, and an opening / closing port 20 is formed on the bottom surface part c1 as a take-out means for taking out the contents in the container 17 to the outside. ing. As shown in FIG. 3, the opening / closing port 20 has a bottom surface portion c.
1 includes a through hole c10 and a shutter device 21 for opening and closing the through hole c10.
The shutter plate 21a is horizontally movable along the through hole c10, and a cylinder device 21b for horizontally driving the shutter plate 21a.

As shown in FIG. 2, the water supply means 18 is a water supply device 22 for supplying water at an arbitrary constant pressure,
A water supply pipe 23 extending from the water supply device 22 and connected to a water supply port d formed on the cover plate 17b, and a flow rate adjusting valve 24 and an electromagnetic opening / closing valve 25 mounted in the middle of the water supply pipe 23 are provided. It has been prepared.

At this time, the water supply port d has a shape suitable for dripping water, and is located at a position of approximately 1/2 or less of the container radius length e from the side surface c2 of the container 17 toward the center of the bottom surface c1 (most preferably). It is assumed that water is supplied to a position (about 1/3 of the container radius length e).

In the stirring means 19, a rotary drive shaft 26 is rotatably mounted on the vertical center line of the container 17 via a bearing member (not shown), and the lower end of the rotary drive shaft 26 is attached to the bottom surface portion c.
1, the upper end of the rotary drive shaft 26 projects above the cover plate 17b, and the lower end of the rotary drive shaft 26 has an elongated stirring member 27a extending in the radial direction of the rotary drive shaft 26. , 27b and the rotary drive shaft 26
The output part of a motor drive device 28 for rotating the rotary drive shaft 26 is interlockingly connected to the upper end of the motor drive device 28, and the motor drive device 28 and the electromagnetic opening / closing valve 25 are associated with each other by a control device (not shown). There is.

At this time, as shown in FIGS. 3, 4 and 5, one stirring member 27a has a length substantially matching the radial length of the bottom surface portion c1 and has a width f1 of about 20 mm to 40 m.
The length of the stirring member 27b is about 2/3 of that of the preceding stirring member 27a, and the width f2 is about 2/3. The two agitating members 27a and 2a are made into a short elongated plate member having a thickness of approximately 30 mm to 50 mm and a thickness of approximately 5 mm to 15 mm.
7b is positioned so as to substantially coincide with the specific diameter line of the bottom surface portion c1, and is inclined at a specific inclination angle α toward the side where the fly ash is gradually pushed up by the rotational movement around the rotary drive shaft 26. The inclination angle α is about 15 to 4 with respect to the horizontal plane.
It should be about 5 degrees, but preferably about 20 degrees.
It is set to about 25 degrees.

The width center line of one stirring member 27a is moved in parallel to the radial line of the rotary drive shaft 26 in the direction opposite to the rotation direction by a distance indicated by the reference sign g, and the stirring member 27b of the other stirring member 27b is moved. The width center line is exactly aligned with the radius line of the rotary drive shaft 26.

As shown in FIG. 3, a reinforcing plate 29 is fixed to a central portion of the lower surface of the bottom surface portion c1, and an upright supporting shaft member 30 is fixed via the reinforcing plate 29. The front side of the rotary drive shaft 26 is densely inserted into a vertical hole formed at the lower end surface of the rotary drive shaft 26 at the center of rotation thereof so as to allow the rotary shaft 26 to rotate.

In the cover plate 17b shown in FIG. 2, a through hole m is formed below the fly ash falling passage portion 12, and the lower end edge of the fly ash falling passage portion 12 is connected to the through hole m so as to communicate therewith. ing. At this time, the fly ash drop passage portion 12 is configured to communicate the lower shielded space a of the bag filter 5 and the inner space of the container 17 in a sealed manner.

Next, an example of use and operation of the incineration system described above will be described. Under the operating condition of the combustion furnace 1, the supply opening / closing port n1 is opened at any time, and an incineration object made of a combustible material such as dust or sewage sludge is introduced into the primary combustion chamber 1a.

The material to be incinerated is combusted in the primary combustion chamber 1a, and powders such as combustion gas and fly ash generated here are discharged from the exhaust device 6.
Is moved to the secondary combustion chamber 1b due to the action of the air flow, etc., and the unburned components contained in the combustion gas and the like are combusted inside this. Combustion gas in the secondary combustion chamber 1b flows out to the flue 2 through the smoke outlet n2. In the flow process in the secondary combustion chamber 1b, the heat of the combustion gas serves as a heat source for the waste heat boiler 7. Effectively used.

Combustion gas and the like that have reached the flue portion 2a flow into the cyclone 3, and the powder having a relatively large specific gravity is removed in the main body portion 3a. The powder removed here contains a large amount of soot pieces of a few mm size that flow out when soot blowing (in-furnace soot-dispelling processing by jetting steam or the like) in the combustion furnace 1 is performed. However, here, smoke containing fly ash and the like, which is a powder having a relatively small specific gravity that rises up by the air flow, is not separated from the combustion gas and flows out from the cyclone 3 into the next flue portion 2b.

The combustion gas reaching the flue portion 2b further flows into the lower shielded space a of the bag filter 5, then passes through the filter surface of the bag 11 and moves into the upper shielded space b, It flows out into the next flue part 2d.

The flow of the combustion gas or the like in the main body portion 5a is continued during the combustion in the combustion furnace 1, so that the lower shielded space a side of the bag 11 is provided. Fly ash in the smoke is filtered out on the surface of the and adheres in a thin layer. When the layer of the fly ash thus adhered becomes thick and the combustion gas permeation resistance of the bag 11 becomes larger than a predetermined value, the fly ash is automatically wiped off from the surface of the bug 11 by a known means. . The fly ash blown off in this way descends in an environment with a relatively small air velocity in the lower shielded space a, and is accumulated in the collection place a2. on the other hand,
The combustion gas that has reached the flue portion 2d is then provided with the blowing force of the fan 6a of the waste wind device 6, reaches the chimney 2e, and is discharged into the atmosphere.

The amount of fly ash accumulated in the collecting place a2 increases as the flow time of the combustion gas and the like as described above elapses. When the fly ash reaches the predetermined amount, the sensor 14
Detects this and activates, for example, an indicator lamp or an alarm. This allows the worker to recognize the situation, and after that, the fly ash is treated as follows.

That is, the cylinder device 13a is operated to move the shutter plate 13b to temporarily open the inside of the fly ash dropping passage 12. As a result, the fly ash in the collection place a2 falls into the container 17 by its own weight through the fly ash dropping passage 12. At this time, since the inside of the collection place a2, the fly ash dropping passage 12 and the container 17 is a closed space, the situation in which the fallen fly ash does not rise to the outside does not occur. In this embodiment, the amount of fly ash thus dropped is about 300 liters, and the container 17 is almost filled.

After that, the operator activates the ash particle generator 16. As a result, the water supply means 18 and the stirring means 19 automatically operate, the electromagnetic opening / closing valve 25 opens to supply water at a predetermined flow rate from the water supply port d, and the motor driving device 28 rotates to stir the stirring member 27a. , 27b
Is rotated in the arrow direction r (see FIG. 5) around the rotary drive shaft 26. Then, the water supply means 18 operates so as to supply about 30 to 60 liters of water over a time of about 20 to 30 minutes, and then automatically the electromagnetic opening / closing valve 25.
After that, the water supply is stopped and the water supply is stopped. At this time, it is optimal that the water is supplied continuously, but instead of this, water may be supplied intermittently or in the form of a fine-lined water flow. On the other hand, the agitating means 19 rotates the rotary drive shaft 26 to about 20.
The motor drive device 28 is automatically stopped after about several minutes (for example, 3 minutes) have elapsed since the water supply by the water supply means 18 was stopped by continuously rotating at a speed of about 60 rpm. It becomes inactive.

Such water supply means 18 and stirring means 1
During the operation of 9, the fly ash is combined with water droplets or a group of water falling on the free surface of the fly ash in the container 17, and the combined fly ash is gradually stirred by the stirring action of the stirring members 27a and 27b. It is settled downward and is rotated and displaced. In this process, the fly ash around it grows so that the diameter of the fly ash gradually increases and the diameter of the fly ash eventually increases as shown in Fig. 6. A large number of ash solid particles j of several mm to several cm are formed.

Further, the water supplied from the water supply port d is stored in the container 1.
At the top surface of the fly ash in 7, the container falls from the side surface c2 of the container 17 to a position that is approximately 1/2 or less of the container radius length e. At this position, the stirring members 27a and 27b are larger than the part near the rotary drive shaft 26. Since the fly ash moves most violently by moving at the peripheral speed, the water dropped there is effectively mixed with the fly ash and the ash solid particles j are efficiently generated.

During rotation of the rotary drive shaft 26, as shown in FIG. 5, the longer stirring member 27a throws fly ash in the arrow direction s1.
Since the short stirring member 27b acts in the direction of the arrow s2, the fly ash is efficiently stirred as a whole, and each member 2
Since 7a and 27b are inclined at a specific angle, as shown in FIG. 6, an effective rotation force is applied to the ash solid particles j in the growing process which are in contact with the upper surface of the solid particles so as to promote the growth. To work.

Furthermore, since the stirring members 27a and 27b rotate for several minutes after the water supply by the water supply means 18 is stopped, a large number of the solid ashy particles j that have already been produced are in a state of being kneaded. This results in a large number of solid ash particles j
The qualitative differences such as moisture between the two are alleviated, the shape of each ash solid particle j is adjusted, and further, when fly ash remains, it adheres to the ash solid particle j.

After the stirring means 19 is automatically stopped,
The operator suspends the bag k under the opening / closing port 20, and then operates the cylinder device 21b to operate the shutter plate 21a.
By horizontally moving the opening / closing port 20 and temporarily rotating the stirring means 19 manually. As a result, a large number of solid ash particles j in the container 17 fall by their own weight through the opening c10 and are accommodated in the bag k.
At this time, since the solid ash particles j are significantly heavier than air, they do not fly up into the atmosphere, and because the volume of the ash solid particles j has a constant bulk density as compared with the fly ash collected at the collection location a2, transportation etc. Is excellent in handling. The ash solid particles j thus taken out from the container 17 are transported to a landfill disposal site by a transport vehicle or the like and disposed of in a landfill.

The ash solid particles j taken out of the container 17 may be treated as a bulk load without using the bag k. In this case, a belt conveyor or the like can be used to remove the ashy solid particles j from the container 17 to its storage place or a carrier. Transfer to a loading platform.

[0045]

According to the present invention described above, the following effects can be obtained. That is, fly ash can be moved into the container without rising to the atmosphere, and solid ash particles having a relatively large specific gravity can be produced at a low cost by a simple device and treatment. As solid ash particles are taken out of the container into the atmosphere, the fly ash is prevented from flying up into the atmosphere during the process of taking it out and during transportation such as transportation and landfilling after taking it out, thus deteriorating the working environment. It is possible to prevent the diffusion of dioxin and dioxin, and the volume ratio of the solid ash particles taken out from the container is significantly reduced compared to the volume at the time of fly ash, so it is necessary to treat it until it is buried in the landfill disposal site. It can be done efficiently.

Thus, according to the present invention, the particle size is approximately a few meters.
A large number of solid ash particles of about m to several cm can be produced at low cost by a simple device and processing, and the treatment until the solid ash particles produced are buried in a landfill disposal site is in a good working environment. The dioxin can be efficiently carried out without diffusing dioxin below.

According to the invention described in claim 2, when the fly ash collected by the fly ash separating / collecting device is moved into the container, the fly ash does not fly up to the atmosphere.

According to the third aspect of the invention, the solid ash particles in the container can be taken out by the gravity action through the opening / closing port.

According to the fifth aspect of the invention, solid ash particles can be reliably produced with a small amount of power.

According to the invention described in claim 6, since the rotation of each solid ash particle in contact with the upper surface of the plate member forming the stirring member and each solid ash particle in the vicinity thereof is promoted, a large number of solid ash particles Grains can be efficiently grown.

According to the invention described in claim 7, water can be efficiently dispersed in the entire fly ash in the container.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of an incineration system according to the present invention.

FIG. 2 is a side view showing a fly ash separation and collection device and the like of the incineration system.

FIG. 3 is a cross-sectional view showing a part of an ash particle generation device provided below the fly ash separation and collection device.

FIG. 4 is a side view showing a part of a stirring means of the ash particle generator.

FIG. 5 is a plan view showing a part of the stirring means.

FIG. 6 is an explanatory view showing the operation of the stirring means.

[Explanation of symbols]

1 combustion furnace 2 flue 12 Fly ash drop passage (fly ash passage) 16 Fly ash separation collection device 17 containers 18 Water supply means 19 Stirring means 20 Opening / closing port (takeout means) 26 rotary drive shaft 27a Stirring member 27b Stirring member a2 Fly ash collection place c1 bottom part j Solid ash particles

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Claims (7)

[Claims] 1. An incineration system equipped with a fly ash separation / collection device for separating and collecting fly ash flowing in a flue extending from a combustion furnace, wherein the fly ash separation / collection device collects the fly ash. A container for receiving ash, a water supply means for supplying water into the container, a stirring means for stirring fly ash in the container, and a takeout for taking out the contents in the container to the outside. A means is provided, and the water supply means and the stirring means operate the fly ash in the container in association with each other so as to form a large number of solid ash particles having a particle size of about several mm to several cm. A method for treating fly ash, which is characterized by being taken out. 2. A fly ash accommodating portion of the container is hermetically sealed, and the container and the fly ash separating and collecting device are hermetically communicated with each other through a fly ash passage portion, and the fly ash separating and collecting device is inside. The incinerator system according to claim 1, wherein the fly ash collected in the container is configured to flow into the container by its own weight. 3. The incinerator system according to claim 1, wherein the take-out means is an opening / closing port formed on the bottom surface of the container. 4. A container for receiving fly ash contained in combustion gas, a water supply means for supplying water into the container, a stirring means for stirring fly ash in the container, and a container And a means for agitating the water supply means and agitating means so that the fly ash in the container is made into a large number of solid ash particles having a particle size of about several mm to several cm. An apparatus for producing an ash particle, wherein the ash particle is operated in association with the solid ash particle, and the solid ash particle is taken out from the taking-out means. 5. The container has a vertically-oriented cylindrical shape, and a vertically-oriented rotation drive shaft is provided at a central portion of the cylindrical shape, and a lower end of the rotation drive shaft is brought close to a bottom surface portion of the container and the lower end portion is provided. The incineration system according to claim 4, further comprising an elongated stirring member extending in the radial direction of the rotary drive shaft. 6. The agitating member is composed of a plate member having a relatively narrow width, and the plate member is inclined toward the side where the fly ash is gradually pushed up by the rotational movement around the rotary drive shaft. Item 5. The incineration system according to item 5. 7. The structure according to claim 4, wherein the water supply means supplies water from a side wall of the container at a position of a fly ash upper surface in the container to a position that is approximately ½ or less of a radius of the container. The ash particle generator described.