JP2003311224A - Method and apparatus for cleaning heat storage body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for cleaning a heat storage body by which the work of cleaning the heat storage body, the work of taking out the heat storage body from a heat storage part and the work of supplying the heat storage body to the heat storage part can be done simply without exerting man power and the work efficiency is made high and to provide an apparatus for cleaning the heat storage body. <P>SOLUTION: This method and this apparatus 10 are used for cleaning the heat storage body by removing the dust stuck to the heat storage body having a substantially ball-like shape. A cleaning vessel main body 11 is kept under reduced pressure, into which a plurality of the heat storage bodies are then sucked and introduced successively. The heat storage bodies introduced into the body 11 are rolled, vibrated and made to collide with one another on perforated and vibrating inclined plates 24, 25 so that the dust stuck to the heat storage bodies can be shaken off and removed. When a specified amount of the dust-removed heat storage bodies are stored into the body 11, the cleaned heat storage bodies are discharged to the outside of the body 11. <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 and apparatus for cleaning a regenerator used in a regenerative burner capable of recovering waste heat.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG.
The heat storage type burner 72 including the heat storage unit 71 is usually 2
The bases are used as a pair, and combustion and heat storage are alternately performed. With this configuration, when fuel is supplied to the burner 70 of the heat storage type burner 72 on the one side (the left side in the drawing) and the heat storage type burner 72 is used for combustion,
The heat storage type burner 72 on the other side (right side) sucks in the exhaust gas (gas in the furnace) heated to a high temperature, and stores this exhaust gas in the heat storage unit 7.
After exhausting through 1, the waste heat is stored in the heat storage type burner heat storage body (hereinafter, also simply referred to as heat storage body) 73 in the heat storage unit 71. Next, when the combustion time of the heat storage type burner 72 on the one side used for combustion has passed a specific time, the combustion of the heat storage type burner 72 is stopped and the heat storage type burner 72 on the other side stores heat. After switching from combustion to combustion, the combustion air is passed through the heat storage section 71 where the exhaust gas has passed and the heat is stored, and the combustion air is heated to a high temperature to recover the waste heat. As described above, when the heat storage unit 71 of the heat storage type burner 72 is normally operated for about half a year as a heating furnace for storing heat, the heat storage unit 73 filled in the heat storage unit 71 has the heat storage unit 7
Dust such as scale in 1 adheres. If this dust is left as it is, the air permeability is deteriorated and the heat storage efficiency is deteriorated. Therefore, by cleaning the heat storage body 73,
The dust adhering to 3 is removed. For cleaning, the heat storage body take-out lid attached to the heat storage type burner 72 is opened, and the heat storage section 73 of the heat storage type burner 72 is used to manually store the heat storage body 73.
After removing the heat storage body 73 and cleaning the heat storage body 73, the heat storage body intake lid was opened, and the heat storage body after cleaning was manually returned to the heat storage unit 71. This work was heavy labor because the weight of the heat storage body 73 was heavy. Immediately after the heat storage section 71 of the heat storage type burner 72 is operated as a heating furnace, the heat storage body 73 becomes high in temperature to the extent that it becomes difficult for a person to touch it, and therefore a cooling period is required, and the work is required. It couldn't be done efficiently.

Therefore, as a means for solving this, Japanese Patent Laid-Open No.
A heat storage type combustion device 74 and a heat storage body exchange device have been proposed in 0-320831. As shown in FIG. 5, the heat storage type combustion device 74 is provided with a burner 75 and a heat storage part 76, and from the burner 75 to a part 77 of the heat storage part 76,
That is, the part from which the lid and the like have been removed can be separated. When exchanging the heat storage body in the heat storage unit 76 using the heat storage type combustion device 74, first, the wheels 79 of the carriage 78 fixed to the part 77 of the heat storage unit 76 are the rails 8.
The handle of the jack-up device 81 is rotated and lowered until it reaches 0. Next, the tip of the wire rope 83, one end of which is fixed to the hoist 82, is attached to the handle 86 fixed to a part 77 of the heat storage part 76 through the static pulley 85 fixed to the column 84, and the hoist 82 is operated. Then, the part 77 of the heat storage unit 76 is moved to the left. Then, after fixing the wire rope 83 so as not to move, a part of the heat storage body is discharged into a container (heat storage body recovery container). After that, the tip of the wire rope 87, one end of which is fixed to the hoist 82, is attached to the part 77 of the heat storage section 76, and the handle 88 is fixed.
The wire rope 87 is fixed so as not to move, and the contaminated or damaged heat storage body is discharged from the heat storage unit 76 after the hoist 82 is operated to tilt the part 77 of the heat storage unit 76. After the discharge of the heat storage body is completed, the hoist 82 is operated to loosen the wire rope 87, the part 77 of the heat storage portion 76 is returned to the horizontal state, the tip of the wire rope 87 is removed from the handle 88, and the inside of the heat storage portion 76 is removed. To the heat storage body.
Thereby, a part or all of the heat storage body in the heat storage unit 76 can be replaced.

[0004]

However, in the above-mentioned device, the heat storage part 76 can be easily removed from the burner 75 and the heat storage part 76 can be attached to the burner 75. Since the work of taking out the heat storage body from the heat storage unit 76 and the work of supplying the heat storage body to the heat storage unit 76 still need to be performed manually, the workability is not good. The present invention has been made in view of such circumstances, and the cleaning work of the heat storage body, the work of taking out the heat storage body from the heat storage unit, and the work of supplying the heat storage unit to the heat storage unit can be easily performed without manpower. It is an object of the present invention to provide a method for cleaning a heat storage body and a device therefor which are capable of achieving good workability.

[0005]

According to the present invention, there is provided a method for cleaning a regenerator, which removes dust adhering to the substantially ball-shaped regenerator. The inside of the cleaning container body is depressurized, and a plurality of heat storage bodies are sucked into the cleaning container body and sequentially introduced, and the heat storage body introduced into the cleaning container body is rolled on a porous and vibrating inclined plate. The heat storage body is caused to vibrate, and the heat storage bodies are caused to collide with each other to remove dust adhering to the heat storage bodies by sieving and removing them.
When a certain amount of the dust-removed heat storage body is stored in the cleaning container body, the heat storage body is discharged to the outside of the cleaning container body. In this way, by reducing the pressure inside the cleaning container body,
It can be introduced into the cleaning container body from the heat storage part of a heat storage type burner without using human power. In addition, since the heat storage body is rolled on a porous and vibrating inclined plate, vibrations are transmitted to the heat storage body, the number of collisions between the heat storage bodies increases, and dust adhering to the heat storage bodies is efficiently removed. Moreover, the dust removed from the heat storage body can be sieved off. Then, since the heat storage body from which dust has been removed is discharged outside the cleaning container main body at the time when it has been stored in a fixed amount, without using human power, for example, taking out the heat storage body from the cleaning container main body, to the heat storage section of the heat storage type burner It is possible to supply the heat storage body.

A cleaning device for a heat storage body according to the present invention which meets the above object is a cleaning device for a heat storage body which removes dust adhering to a substantially ball-shaped heat storage body. An inlet for the intended heat storage body is provided, and a dust outlet for discharging the dust generated by cleaning the heat storage body and a heat storage body outlet for discharging the cleaned heat storage body are provided from the middle part to the lower part. Of the cleaning container body, an inclined plate in the cleaning container body on which the heat storage body introduced from the introduction port rolls, which has a large number of holes, a vibration source which gives physical vibration to the inclined plate, and an inclined plate A dust storage chamber that is provided below and receives the dust that is separated from the heat storage body and that falls on the downstream side that communicates with the dust discharge port A heat storage body storage chamber that stores the cleaned heat storage body that communicates with the heat storage body discharge port, first and second shutoff valves that respectively close the dust discharge port and the heat storage body discharge port, and decompress the interior of the cleaning container body. And a pressure reducing means for As described above, since the first and second shutoff valves are provided at the dust outlet and the heat storage body outlet provided in the cleaning container body, the inside of the cleaning container body can be shut off from the outside air. Thus, by providing an inlet for the heat storage body in the cleaning container body and making the inside of the cleaning container body into a negative pressure state by the depressurizing means, the heat storage body is removed from the heat storage part of the heat storage type burner without using human power. Can be introduced inside. Further, since the inclined plate having a large number of holes is provided in the main body of the cleaning container,
Only the dust removed from the heat storage body rolling on the inclined plate can be sieved off from the large number of holes. Since the vibration source is provided, when the vibration source is in operation, it is possible to apply vibration to the heat storage body rolling on the inclined plate,
The number of collisions between the heat storage bodies can be improved, and the dust attached to the heat storage bodies can be removed more efficiently. Further, since the dust storage chamber and the heat storage body storage chamber are provided in the cleaning container body, respectively, it is possible to take out the dust and the heat storage body from the cleaning container body when a predetermined amount of each is stored.

Here, in the heat storage body cleaning apparatus according to the present invention, a conveying means for conveying the heat storage body using power is provided downstream of the second shutoff valve for discharging the heat storage body. Is preferred. This makes it possible to take out the heat storage body from the cleaning container main body and supply the heat storage body to the heat storage portion of the heat storage type burner without requiring human power. In the heat storage cleaning device according to the present invention, the depressurizing means is provided with an ejector using compressed air as a power source, and the conveying means is provided with air transporting means using compressed air as a power source. It is preferable that the compressed air of the pneumatic transportation means is connected to the same air source and is switched by the switching valve. In this way, the ejector and the air transportation means using the compressed air as the power source are used for the decompression means and the transportation means, and the supply of the compressed air is switched by the switching valve, so that it is necessary to separately provide the power source. Disappear. In the heat storage cleaning apparatus according to the present invention, an electric vacuum pump is used as the pressure reducing means, and an electric belt conveyor arranged downstream of the second shutoff valve is used as the conveying means. It is preferable. As described above, since the electric vacuum pump and the belt conveyor are used as the pressure reducing means and the conveying means, respectively, the power source becomes electric and the handling becomes easy.

In the heat accumulator cleaning apparatus according to the present invention, the cleaning container body is provided with a suction opening portion of the pressure reducing means, and the suction opening portion is provided with a filter for filtering dust generated in the cleaning container body. Is preferably provided. Since the filter is provided in the suction opening of the depressurizing means in this manner, it is possible to prevent dust from being sucked into the suction opening while the depressurizing means is in operation, and to reduce the pressure inside the cleaning container body. In the heat storage body cleaning apparatus according to the present invention, the lower floor surface of the heat storage body storage chamber is preferably inclined downward toward the heat storage body discharge port. As a result, the substantially ball-shaped heat storage body can be rolled toward the heat storage body discharge port by its own weight. In the heat storage cleaning device according to the present invention, the lower floor surface of the dust storage chamber is preferably inclined downward toward the dust discharge port. As a result, the dust is stored on the dust outlet side.

In the heat storage body cleaning apparatus according to the present invention, the inclined plates are arranged in a staggered manner in the height direction in the main body of the cleaning container, and the heat storage body rolling on the upper inclined plate has the inclination directly below. Further rolling on the plate is preferred. In this way, since the inclined plates are alternately arranged in a plurality of stages in the cleaning container main body, the heat storage body can continuously roll on the plural inclined plates to extend the rollable distance. In the heat accumulator cleaning apparatus according to the present invention, it is preferable that one or a plurality of vibrating means for applying a slight vibration to the entire cleaning container body is provided outside the cleaning container body. As a result, vibration can be applied to the cleaning container body, so that the heat accumulating bodies rolling on the inclined plate can be vibrated and the number of collisions between the heat accumulating bodies can be increased.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Next, referring to the attached drawings, an embodiment in which the present invention is embodied will be described to provide an understanding of the present invention. FIG. 1 is an explanatory view of a heat storage cleaning device according to an embodiment of the present invention, and FIG.
1A and 1B are cross-sectional views taken along the line aa in FIG.
-B arrow sectional view, FIG. 3 is a cc arrow sectional view of FIG.

As shown in FIGS. 1 to 3, a heat storage cleaning device (hereinafter, also simply referred to as a cleaning device) 10 according to an embodiment of the present invention is a heat storage type burner having a burner and a heat storage section. (Refer to FIG. 4) Dust (including dust) attached to the heat storage body that is made of alumina (a refractory material) and has a substantially ball shape (for example, a diameter of about 10 to 15 mm) filled in the heat storage portion (see FIG. 4). It is a device for removing. The details will be described below.

As shown in FIGS. 1 and 2A, the cleaning device 10 has a cleaning container body (that is, a cleaning container) 11 for cleaning the heat storage body introduced from the heat storage section. This cleaning container body 11
Has a cylindrical outer shape and is separable at the center in the height direction. The flanges are provided outside the lower end of the upper container 12 and outside the upper end of the lower container 13, respectively. The parts 14 and 15 are brought into contact with each other and fixed by bolts to be integrated. An inlet 16 is provided in the upper part of the cleaning container body 11, and an inlet pipe 17 for introducing a plurality of heat storage bodies to be cleaned is inserted into the inlet 16. Below the introduction port 16, a guide member 19 having an opening 18 having an inner diameter approximately equal to the outer diameter of the introduction pipe 17 is attached to the upper inner wall of the cleaning container body 11. As a result, the downstream end of the introduction pipe 17 is connected to the opening 18
By fixing the heat storage body to the inside of the introduction pipe 17, the movement of the downstream end of the introduction pipe 17 is suppressed and the heat storage body is dropped below the introduction port 16 by the guide member 19 even when the heat storage body moves in the introduction pipe 17. be able to.

A dust discharge port 20 for discharging dust generated by cleaning the heat storage body is provided on the lower side of the middle portion in the height direction on one side (right side in FIG. 1) of the cleaning container body 11. . On the other side of the cleaning container body 11 (the side facing the dust discharge port 20), below the dust discharge port 20, that is, at the bottom of the cleaning container body 11, a heat storage body for discharging the cleaned heat storage body. A discharge port 21 is provided. The dust discharge port 20 and the heat storage body discharge port 21 have the first and second
Shut-off valves 22 and 23 are provided to shut off the inside of the cleaning container body 11 from the outside air except when the dust and the heat storage body are discharged.

As shown in FIGS. 1, 2A and 2B,
Inside the cleaning container body 11, a net-like structure having a large number of holes is provided. Expanded metal (an example of a tilted plate) 24, 25 made of stainless steel, for example, on which the heat storage material introduced from the inlet 16 rolls is provided. There is. The expanded metals 24, 25 are alternately arranged in a plurality of stages (two stages in this embodiment) in the height direction inside the cleaning container body 11. This expanded metal 24, 2
The inclination angles θ1 and θ2 of 5 are set to such angles that the heat storage body can sufficiently roll on the expanded metals 24 and 25, for example, 10 to 30 degrees, respectively. It is attached to the inner wall. In addition, the expanded metal 24 located in the upper stage
An opening 26 is provided at the downstream end of the cleaning container body 11 with the inner wall of the cleaning container body 11. An opening 27 is also provided between the downstream end of the expanded metal 25 located in the lower stage and the inner wall of the cleaning container body 11.

As shown in FIGS. 1 and 3, below the expanded metal 25 in the lower stage, the downstream side is the dust discharge port 20.
And expanded from the heat storage body, and expanded metal 2
A dust storage chamber 28 is provided for receiving dust falling through a large number of holes 4 and 25. This dust storage chamber 2
The lower floor surface 29 of 8 is made of, for example, a substantially disc-shaped stainless steel, the upstream end portion is connected to the downstream end portion of the lower expanded metal 25, and the downstream end portion is the dust discharge port. 20 connected in series, and the dust outlet 2
Angle θ3 (eg 10-30
Angle). Further, downstream of the expanded metal 25 in the lower stage, that is, in the lower part of the cleaning container body 11, the downstream side communicates with the heat storage outlet 21, and the cleaned heat storage body dropped from the opening 27 of the expanded metal 25 in the lower stage is stored. A heat storage body storage chamber 30 is provided. The lower floor surface 31 of the heat storage body storage chamber 30 is made of, for example, a substantially disc-shaped stainless steel, the periphery of which is attached to the inner wall of the cleaning container body 11, and the downstream end portion is the heat storage body discharge port. It is continuously connected to the heat storage body 21, and is inclined downward at the angle θ4 (for example, 10 to 30 degrees) toward the heat storage body discharge port 21.

Upper and lower expanded metal 24, 25,
Lower floor surface 29 of dust storage chamber 28 and heat storage body storage chamber 3
The lower floor surface 31 of 0 is fixed to the vibration shaft 32 located substantially at the center of the cleaning container body 11. The contact portion 33 at the lower end portion of the vibration shaft 32 is arranged in an opening portion 34 provided at the center of the bottom portion of the cleaning container body 11. A relay knocker (an example of a vibration source) 35 that provides physical vibration is provided below the opening 34 of the cleaning container body 11 by welding, for example, so as to prevent outside air from entering the cleaning container body 11. Has been. The vibrating portion 36 of the relay knocker 35 moves up and down in a predetermined cycle (for example, once every 1 to 5 seconds), so that the upper end surface of the vibrating portion 36 contacts the lower end surface of the contact portion 33. This allows the expanded metal 2 to pass through the vibration shaft 32.
4, 25 and the lower floor surfaces 29, 31 can be vibrated respectively. Note that four leg portions 37 are equiangularly provided at the lower portion of the cleaning container body 11 so that the lower end of the relay knocker 35 does not come into contact with the ground.

As a result, the heat storage body introduced from the introduction port 16 drops onto the expanded metal 24 in the upper stage vibrating by the vibrating shaft 32, and the heat storage bodies collide with each other while vibrating on the expanded metal 24. Rolls toward the opening 26 side. Next, the heat storage bodies that have dropped from the opening 26 onto the expanded metal 25 in the immediately lower stage collide with each other while vibrating on the expanded metal 25, and the heat storage bodies further roll toward the opening 27 side. The heat storage body dropped from the opening 27 is stored in the heat storage body storage chamber 30. Further, the heat storage body vibrates, the heat storage bodies collide with each other, and the dust removed is dropped from a large number of holes formed in the expanded metals 24 and 25 and stored in the dust storage chamber 28. In addition, since the lower floor surface 29 of the dust storage chamber 28 and the lower floor surface 31 of the heat storage body storage chamber 30 are respectively vibrated by the vibration shaft 32, the heat storage body in the heat storage body storage chamber 30 is located on the heat storage body discharge port 21 side. And the dust in the dust storage chamber 28 moves to the dust discharge port 20 side. This facilitates the work of discharging the heat storage body and the dust from the inside of the cleaning container body 11.

At the upper part of the cleaning container body 11, a decompression means 3 for decompressing the inside of the cleaning container body 11 is provided.
8 are provided. The decompression unit 38 has an ejector 39 that uses compressed air as a power source, and a suction opening 40 that is provided in the cleaning container main body 11 and communicates with a suction portion of the ejector 39. A filter 41 made of cloth, for example, for filtering dust generated in the cleaning container main body 11 is attached to the suction opening 40. When the ejector 39 is operated, the pressure inside the cleaning container main body 11 is set to -2000 mmAq.
(MmH ₂ O) or less.

On the downstream side of the second shutoff valve 23 for discharging the heat storage body, there is provided an air transport means 42 provided in a transport means for transporting the heat storage body by using power. This transfer means is a pipe 43 provided on the downstream side of the second shutoff valve 23.
And a pipe 44 communicating with the pipe 43.
By supplying compressed air to No. 4 at 200 m ³ / h or more,
When the second shutoff valve 23 is opened, the air in the cleaning container body 11 can be exhausted to the downstream side of the pipe 43, and the heat storage body after cleaning can be continuously discharged from the cleaning container body 11. Since the ejector 39 and the air transportation means 42 both use compressed air as a power source, they are connected to the same air source 45 that produces compressed air, and the switching valve 46 switches the supply direction of the compressed air for use. In addition, in the case of discharging the heat storage body from the inside of the cleaning container main body 11 using the air transportation means 42,
As described above, by arranging the lower floor surface 29 of the dust storage chamber 28 and the lower floor surface 31 of the heat storage body storage chamber 30 alternately, the dust is discharged together with the heat storage body when the air transportation means 42 is used. Can be prevented.

One vibrator (an example of a vibrating means) 4 which gives a slight vibration to the entire cleaning container body 11 outside the cleaning container body 11 at the center in the height direction.
7 is provided. The vibrator 47 gives, for example, a few hundreds of microvibrations per second, and can give a finer vibration to the heat storage body rolling on the expanded metal 24, 25, and the dust attached to the heat storage body. Can be removed more efficiently. A plurality of vibrators 47 may be provided outside the cleaning container body 11. A vibrator 48 is attached to the heat storage body discharge port 21. By operating the vibrator 48, the heat storage body in the heat storage body storage chamber 30 can be moved to the heat storage body discharge port 21 side, and the heat storage body can be more easily discharged from the cleaning container body 11. Since two viewing windows 49 are provided on both sides of the cleaning container body 11 on the lower side wall of the upper container 12 of the cleaning container body 11,
The condition inside the cleaning container body 11 can be easily confirmed.

Next, a method for cleaning the heat storage body according to the embodiment of the present invention will be described with reference to the heat storage body cleaning apparatus 10 described above. First, the upstream end of the suction hose 50 is connected to the heat storage section of the regenerative burner, and the downstream end of the suction hose 50 is connected to the introduction pipe 17. At this time, the first and second shutoff valves 22 and 23 are closed. In addition, the relay knocker 35 is operated, and the expanded metal 24, 2 is passed through the vibration shaft 32.
5 and the lower floor surfaces 29 and 31 are vibrated, and the vibrator 47 is operated to vibrate the cleaning container body 11. Next, by supplying compressed air from the air source 45 to the ejector 39 by the switching valve 46, the air in the cleaning container body 11 is exhausted to the outside air side to be in a depressurized state (-2000 mmAq or less), and heat is stored. The heat storage bodies inside the unit are sucked, and a plurality of heat storage bodies are sequentially introduced into the cleaning container body 11.

The heat storage body introduced into the cleaning container main body 11 falls on the expanded metal 24 and is vibrated while rolling on the expanded metal 24.
Further, the heat storage bodies are caused to collide with each other, and dust adhering to the heat storage bodies is sieved and removed. Then, the heat storage body that has moved to the downstream side while rolling on the expanded metal 24 drops onto the expanded metal 25 from the opening 26 and is given vibration while rolling on the expanded metal 25, and further the heat storage body The particles are made to collide with each other, and dust adhering to the heat storage body is sieved and removed. At this time, the dust screened from the expanded metal 24, 25 drops to the dust storage chamber 28 and is stored therein, and is moved to the dust discharge port 20 side by the vibration of the lower floor surface 29. Further, the heat storage body from which the dust has been removed falls from the opening 27, is stored in the heat storage body storage chamber 30, and is stored in the lower floor surface 31.
Is moved to the heat storage body discharge port 21 side by the vibration.

Supply of the heat storage body to the heat storage section of the heat storage type burner
The dust-removed heat storage body is the cleaning container body 1
A certain amount of heat is stored in the heat storage body storage chamber 30 in the inside 1 (for example, the viewing window 4
It is carried out at the time when it is confirmed visually from 9). First, supply the heat storage
Downstream of the discharge hose in the heat storage part of the regenerative burner that supplies
Connect the ends and place the upstream end of the discharge hose under the pipe 43.
Connect to the end on the flow side. Next, switch the switching valve 46
Well, the compressed air that was being supplied to the ejector 39 (200
m ³ / H or more) is supplied to the pipe 44 of the air transportation means 42.
It As a result, the heat accumulating portion is removed from the cleaning container body 11
The supply of the heat storage body to the inside stops. And the second shutoff valve
By opening 23, you can
The number of heat storage bodies is from the cleaning container main body 11 to the piping 4
3 is discharged to the outside of the cleaning container body 11,
It is supplied to the heat storage unit via the discharge hose. In addition, with this
When the vibrator 48 is activated, the heat storage
The heat storage body stored in the detention chamber 30 is transferred to the heat storage body discharge port 21 side.
The cleaning container body 1 can be moved.
It is possible to prevent the heat storage body from remaining in the unit 1.

Regarding the dust, the dust storage chamber 2
When a certain amount of dust is stored in 8 (for example, visually confirmed through the viewing window 49), the first shutoff valve 22 is opened and, for example, a suction device is used to clean the cleaning container body 1
Dust can be discharged from inside 1. At this time, by operating the relay knocker 35, the dust storage chamber 2
Since the dust stored in the dust storage chamber 28 can be moved to the dust discharge port 20 side by vibrating the lower floor surface 29 of No. 8, it is possible to prevent the dust from remaining in the cleaning container body 11.

Although the present invention has been described with reference to one embodiment, the present invention is not limited to the structure described in the above embodiment and is described in the scope of claims. Other embodiments and modifications that are conceivable within the scope of the matters described above are also included. For example, the present invention is also applied to a case where the heat storage body cleaning method and the apparatus thereof according to the present invention are configured by combining some or all of the above-described respective embodiments and modifications. Further, in the above embodiment, the case where the ejector using the compressed air as the power source is used as the depressurizing means and the air transporting means using the compressed air as the power source is also used as the conveying means has been described.
However, it is also possible to use an electric pump as the pressure reducing means, or to use an electric belt conveyor arranged downstream of the second shutoff valve as the conveying means.

[0026]

In the method for cleaning a heat storage body according to the first aspect of the present invention, the inside of the cleaning container body is depressurized so that the heat storage body to be cleaned can be removed from the heat storage portion of the heat storage type burner without using human power. It can be introduced into the cleaning container body. As a result, even when the heat storage body is in a high temperature state, the heat storage body can be supplied into the cleaning container body without being cooled, so that the work can be performed efficiently and the workability is improved. In addition, since the heat storage body is rolled on a porous and vibrating inclined plate, vibrations are transmitted to the heat storage body, the number of collisions between the heat storage bodies increases, and dust adhering to the heat storage bodies is efficiently removed. Moreover, the dust removed from the heat storage body can be sieved off. As a result, the heat storage body can be cleaned without using human power, which improves workability. And, since the dust-removed heat storage body is discharged to the outside of the cleaning container main body at the time when it is stored in a fixed amount, for example, without using human power, the heat storage body is taken out from the cleaning container main body, to the heat storage part of the heat storage type burner. It is possible to supply the heat storage body. For this reason, since it is possible to perform work without requiring labor as in the conventional case, it is possible to improve work efficiency and
Workability also becomes good.

In the cleaning device for a heat storage body according to claims 2 to 10, since the first and second shutoff valves are provided at the dust discharge port and the heat storage body discharge port provided in the cleaning container body, respectively, Can be shut off from the outside air. Thus, by providing an inlet for the heat storage body in the cleaning container body and making the inside of the cleaning container body into a negative pressure state by the depressurizing means, the heat storage body is removed from the heat storage part of the heat storage type burner without using human power. Can be introduced inside. Therefore, the heat storage body can be introduced into the main body of the cleaning container without requiring labor, so that workability is improved. Further, since the inclined plate having a large number of holes is provided in the cleaning container body, only the dust removed from the heat storage body rolling on the inclined plate can be sieved out from the large number of holes. This makes it possible to easily separate the heat storage body and the dust, and eliminates the possibility that the dust removed from the heat storage body adheres to the heat storage body again. Since the vibration source is provided, when the vibration source is in operation, it is possible to give vibration to the heat storage bodies rolling on the inclined plate, improve the number of collisions between the heat storage bodies, and prevent dust from adhering to the heat storage bodies. Can be removed more efficiently. As a result, the heat accumulator to which the dust adheres can be cleaned to a good condition in a shorter time, which is economical. Further, the dust storage chamber and the heat storage body storage chamber are provided in the cleaning container body, respectively, and the dust and the heat storage body can be taken out from the cleaning container body when a fixed amount of each is stored, so that workability is improved. .

Particularly, in the heat storage cleaning device according to the third aspect, for example, the heat storage is taken out of the cleaning container body and supplied to the heat storage portion of the heat storage type burner without requiring human power. It can be carried out.
Therefore, work efficiency can be improved and workability is also improved. In the heat accumulator cleaning apparatus according to claim 4, since the ejector and the air transporting means using the compressed air as the power source are used for the depressurizing means and the conveying means, respectively, the supply of the compressed air is switched by the switching valve. It is not necessary to provide each power source separately. Therefore, the manufacturing cost of the device can be reduced, which is economical. In the heat storage cleaning device according to the fifth aspect of the present invention, since an electric vacuum pump and a belt conveyor are used as the decompression means and the conveyance means, respectively, the power source becomes electricity, the handling becomes easy, and the workability becomes good. .

In the heat accumulator cleaning device according to the sixth aspect, since the filter is provided at the suction opening of the decompression means, it is possible to prevent dust from being sucked into the suction opening during operation of the decompression means, and at the same time, the main body of the cleaning container. The inside can be depressurized. Therefore, it is possible to easily introduce the heat storage body into the cleaning container body and prevent environmental pollution. In the heat storage cleaning device of the seventh aspect, the substantially ball-shaped heat storage can be rolled toward the heat storage outlet by its own weight. Therefore, by opening the second shut-off valve, the heat storage body whose cleaning has been completed can be continuously discharged from the inside of the cleaning container body, so that the work of taking out the heat storage body from the inside of the cleaning container body can be easily performed. , Workability is improved. In the heat storage cleaning device according to the eighth aspect, since the dust is stored on the side of the dust discharge port, the dust can be easily discharged from the dust discharge port and the workability is improved.

According to the ninth aspect of the present invention, in the cleaning device for a heat storage body, since the inclined plates are alternately arranged in the cleaning container body, the heat storage body continuously rolls on the plurality of inclined plates. The movable distance can be extended. Therefore, the removal of dust attached to the heat storage body can be further enhanced. In the cleaning device for a heat storage body according to claim 10, since vibration can be applied to the cleaning container body, the heat storage body rolling on the inclined plate can be vibrated and the heat storage bodies collide with each other. You can increase the number of times. Therefore, the removal of dust attached to the heat storage body can be further enhanced.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a heat storage cleaning device according to an embodiment of the present invention.

2A and 2B are a sectional view taken along the line aa and a sectional view taken along the line bb of FIG. 1, respectively.

3 is a sectional view taken along the line cc of FIG.

FIG. 4 is an explanatory diagram of a heat storage type burner.

FIG. 5 is an explanatory diagram of a heat storage type combustion device and a heat storage body replacement device according to a conventional example.

[Explanation of symbols]

10: cleaning device, 11: cleaning container body, 12: upper container, 13: lower container, 14, 15: flange, 16: inlet, 17: inlet pipe, 18: opening,
19: guide member, 20: dust discharge port, 21: heat storage body discharge port, 22: first cutoff valve, 23: second cutoff valve, 2
4, 25: Expanded metal (slope), 26, 2
7: Opening part, 28: Dust storage chamber, 29: Lower floor surface, 3
0: heat storage body storage chamber, 31: lower floor surface, 32: vibration axis, 3
3: contact part, 34: opening part, 35: relay knocker (vibration source), 36: vibrating part, 37: leg part, 38: pressure reducing means,
39: Ejector, 40: Suction opening, 41: Filter, 42: Air transportation means, 43, 44: Piping, 45:
Air source, 46: switching valve, 47: vibrator (vibrating means), 48: vibrator, 49: viewing window, 5
0: Suction hose

Claims (10)

[Claims] 1. A method for cleaning a heat storage body for removing dust adhering to a substantially ball-shaped heat storage body, wherein the cleaning container body is depressurized, and a plurality of the cleaning container bodies are provided. The heat storage body is sucked and sequentially introduced, and the heat storage body introduced into the cleaning container body is rolled on a porous and vibrating inclined plate,
While vibrating the heat storage bodies, the heat storage bodies are made to collide with each other to remove the dust adhering to the heat storage bodies by sieving, and the heat storage bodies from which the dust has been removed are stored in the cleaning container body in a certain amount. The method for cleaning a heat storage body, characterized in that the heat storage body is discharged to the outside of the cleaning container body at the time when the heat storage body is discharged. 2. A cleaning device for a heat storage body for removing dust adhering to a substantially ball-shaped heat storage body, wherein an inlet for the heat storage body to be cleaned is provided at an upper portion of the cleaning device. A cleaning container main body provided with a dust discharge port for discharging dust generated by cleaning the heat storage body, and a heat storage body discharge port for discharging the heat storage body that has been cleaned, and the cleaning container In the main body, an inclined plate in which the heat storage body having a large number of holes and fed from the introduction port rolls, and a vibration source that gives physical vibration to the inclined plate,
The dust storage chamber is provided below the inclined plate, the downstream side communicates with the dust discharge port, and receives the dust separated and dropped from the heat storage body; and the downstream side provided with the dust storage chamber, the downstream side is A heat storage body storage chamber that communicates with the heat storage body discharge port and stores the cleaned heat storage body, and first and second blocks that respectively close the dust discharge port and the heat storage body discharge port
And a depressurizing means for depressurizing the inside of the cleaning container body. 3. The heat storage cleaning apparatus according to claim 2, further comprising a transfer unit downstream of the second cutoff valve that discharges the heat storage, for transferring the heat storage using power. The heat storage cleaning device is characterized in that. 4. The heat storage cleaning apparatus according to claim 3, wherein the depressurizing means is provided with an ejector using compressed air as a power source, and the conveying means is provided with an air transporting means using compressed air as a power source. A device for cleaning a heat storage body, wherein the compressed air of the ejector and the compressed air of the air transportation means are connected to the same air source and are switched and used by a switching valve. 5. The heat accumulator cleaning apparatus according to claim 3, wherein an electric vacuum pump is used as the pressure reducing means, and the conveying means is arranged downstream of the second shutoff valve. An apparatus for cleaning a heat storage body, which is characterized in that an electric belt conveyor is used. 6. The heat storage device cleaning apparatus according to claim 2, wherein a suction opening portion of the decompression means is provided in the cleaning container body, and the suction opening portion includes: A heat storage cleaning device, wherein a filter for filtering dust generated in the cleaning container body is provided. 7. The heat storage body cleaning apparatus according to claim 2, wherein a lower floor surface of the heat storage body storage chamber is inclined downward toward the heat storage body discharge port. A cleaning device for a heat storage body characterized by the above. 8. The heat storage cleaning device according to claim 2, wherein a lower floor surface of the dust storage chamber is inclined downward toward the dust discharge port. Characteristic heat storage cleaning device. 9. The heat storage cleaning device according to claim 2, wherein the inclined plates are arranged in a staggered manner in a height direction inside the cleaning container main body, and the inclined plates are arranged in an upper stage. The heat storage body cleaning device, wherein the heat storage body rolling on the inclined plate further rolls on the inclined plate at a lower stage. 10. The heat storage cleaning device according to claim 2, wherein one or a plurality of vibrating means are provided outside the cleaning container body to give a slight vibration to the entire cleaning container body. A cleaning device for a heat storage body, comprising: