JP2003322318A - Rotary incinerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive incinerator for giving incinerating treatment to natural pulverized materials such as saw dust and wood waste without generating hazardous gas. <P>SOLUTION: Burnt objects supplied from a screw conveyor 40 together with compressed air are burnt while securing the amount of combustion air required for burning the burnt objects, and in an incinerator body 10 the screw conveyor 40 supplies the burnt objects and the compressed air to the tangential direction of the outer periphery of the furnace body 10. The burnt objects are burnt in the incinerator body 10 while being turned around the outer periphery. Their long trajectory is maintained until they are burnt, permitting more complete combustion. Combustion gas passes through a water cooled container 50, and so a lower temperature is required for the combustion gas to be exhaust to the outside. <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 an incinerator for incinerating waste, and in particular, produces fine powders of natural substances such as sawdust, wood chips, wood chips, and paper, and emits harmful gases. The present invention relates to an incinerator that can be incinerated without any treatment.

[0002]

2. Description of the Related Art As a conventional technique, Japanese Patent Laid-Open No. 2000-193
Inventions such as Japanese Patent No. 229 can be mentioned.

According to the present invention, there is provided a furnace body which is formed in a hollow cylindrical shape and is rotatably supported around its axis, a member provided so as to close one opening of the furnace body, and this member. Is provided so as to penetrate along the axis of the furnace body,
And, a rotary combustion furnace comprising a cutting screw connected to a hopper for containing waste, a hollow tubular body, and a furnace body in which a gas flow path is formed in a direction along the axis thereof, A plurality of rows of barriers that are provided so as to cross the gas flow passage in the furnace body and block a part thereof, and air that is provided between these barriers and is orthogonal to the gas flow passage are provided. A secondary combustion furnace provided with a plurality of air supply nozzles for blowing out, a hollow short tubular shape, and the other opening of the rotary combustion furnace and the upstream side of the gas flow path of the secondary combustion furnace. Is connected to each furnace body in the axial direction without partition walls.

Therefore, a residue afterburning part is provided below the connecting part, and the bottom part of the residue afterburning part is formed by the upper step part and the lower step part having steps, and each step part is provided with a discharge pusher. A post combustion burner near the end of the lower part,
An ash melting vessel containing a solvent is provided, the residue from the rotary combustion furnace is burned in the upper stage section and / or the lower stage section, and the ash after burning is melted in the ash melting vessel.

[0005]

However, the above-mentioned conventional combustion furnace is a combination of a rotary combustion furnace and a secondary combustion furnace, and has a problem that the structure is complicated and the combustion furnace becomes expensive. It was However, most of the recent legal regulations for incinerators limit the materials to be burned, and it is becoming impossible to burn and dispose of them in inexpensive furnaces.

[0006] Therefore, an object of the present invention is to provide an incinerator that can incinerate fine powders of natural substances such as sawdust and wood chips without generating harmful gases and is inexpensive.

[0007]

According to a first aspect of the present invention, there is provided a rotary incinerator having a furnace body having a substantially cylindrical interior having a fireproof structure, an opening / closing door capable of opening and closing an opening with respect to the furnace body, and With respect to the tangential direction of the outer periphery of the furnace body, a screw conveyor that supplies the burned material together with compressed air, a burner that injects a flame into the furnace body, and a blower that supplies the combustion air into the furnace body, The water-cooled container is provided at the upper part of the furnace body and lowers the temperature of the combustion gas by passing the combustion gas burned in the furnace body through a plurality of tubes.

Therefore, the burned material supplied together with the compressed air on the screw conveyor burns because the burned material mixes with the air and the burned material secures the amount of combustion air required for burning. Good combustion becomes possible. Further, in the furnace body, the screw conveyor supplies the burned material and compressed air to the tangential direction of the outer circumference of the furnace body, so that the burned material swirls its outer circumference in the furnace body. While falling or stagnating in the up and down direction, when it burns up, the mass becomes lighter and rises. Therefore, it is possible to lengthen the flight trajectory until the combustion object burns, and more complete combustion becomes possible. Since the combustion gas passes through the cooler, the temperature of the combustion gas discharged to the outside can be lowered.

Further, the present invention is provided with a water-cooled container which is formed on the upper part of the furnace body and lowers the temperature of the combustion gas by passing the combustion gas burned in the furnace body through a plurality of pipes. Therefore, the combustion gas that has passed through the water-cooled container is to be discharged by passing through the inside of the plurality of pipes of the water-cooled container, except for the plurality of pipes, the upper surface of the furnace main body by the lower end of the water-cooled container. Blockage,
Since a limited amount of air is discharged as a surface, the material to be burned must be lightened and rise only when it burns down while turning around its outer periphery in the furnace body while falling or stagnating in the vertical direction. Thus, the flight trajectory until combustion can be lengthened, and more complete combustion is possible. Since the combustion gas burned in the furnace body is cooled by the cooler, the gas that is not completely burned has a low probability of being discharged from the furnace body even if it becomes temporarily lightweight.

Here, in the furnace body having a refractory structure inside a substantially cylindrical shape, in the case of carrying out the present invention, the inside may form a substantially cylindrical space.

The opening / closing door whose opening can be opened / closed with respect to the furnace body may be a single door or double or more doors. Further, the innermost opening / closing door may be provided with a window made of refractory glass capable of judging the combustion state in the furnace body.

In the screw conveyor for supplying the combusted material together with the compressed air in the tangential direction of the outer periphery of the furnace body, in the present invention, the combusted material supplied in the block state is crushed into the original powder form and subdivided. It is mixed with air and is in a form that easily burns, but in the case of carrying out the present invention, if the supplied burned material is difficult to be in a block state, the use of a conveyor such as a belt conveyor may be used. It is possible. Of course, you may convey by compressed air.

The burner for injecting flame into the furnace body is
Since the material to be burned is rotating in the circumferential direction of the furnace body, when the present invention is carried out, it is sufficient to direct the flame toward the center or to inject the flame so as to match the rotation direction.

Further, since the blower for supplying the combustion air into the furnace main body supplies the combusted material together with the compressed air in the tangential direction of the outer periphery of the furnace main body, it does not interfere with the air flow. Supply is desirable. For that purpose, it is preferable to supply from the outer circumference or from the lower part.

The rotary incinerator according to claim 2 further comprises a cyclone for removing fine powder from the combustion gas that has passed through the water-cooled container, so that the combustion gas whose temperature has dropped is sooted. Etc. can be removed with high efficiency.

Since this cyclone has the function of a filter, it can be replaced with another filter when the present invention is carried out.

In the rotary incinerator according to the third aspect of the present invention, the screw conveyor for supplying the burned material together with air in the tangential direction of the outer circumference of the furnace main body is provided with the burned material supplied while rotating in the circumferential direction from above. Since the mixer for mixing the combustion air is provided, the material to be burned and the combustion air are mixed well, and the combustion efficiency can be improved.

Here, the screw conveyor for supplying the burned material together with air has a function of breaking the burned material supplied in a block state, but the burned material and the combustion air are mixed in the conveying process before that. A mixer is provided, and in the case of carrying out the present invention, any means can be used as long as it can crush the material to be burned and has the ability to include air between the crushed materials.

A blower for supplying combustion air to the inside from an air passage formed on the outer periphery of the furnace body of the rotary incinerator according to claim 4 simultaneously supplies the combustion air to the discharge side of the cyclone, and according to Bernoulli's theorem, combustion gas is generated. It is something to suck. In this way, the supply of combustion air and the exhaust of combustion gas are
Since they occur at least at the same time, by using both of them at the same time, a highly reliable rotary incinerator can be provided without performing a confirmation action with a sensor or the like.

Since the cyclone has a function as a filter, it is possible to dispose a pump as the discharge pressure instead of the suction pressure of the cyclone.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION A rotary incinerator according to an embodiment of the present invention will be described below.

First Embodiment FIG. 1 shows a first embodiment of the present invention.
It is a front view which shows the outline of the whole rotary incinerator.
2 is a sectional view taken along the line AA of FIG. 1, taken along the line AA, FIG. 3 is a sectional view taken along the line BB of FIG. 1, taken along the line BB, and FIG. 4 is taken along the line C-C of FIG. 5 is a sectional view taken along the line D-D in FIG. Further, FIG. 6 is a front view including a partial cross-section showing the outline of the upper part of the rotary incinerator according to the first embodiment of the present invention. And FIG. 7 is a front view including a partial cross-section showing the outline of the vicinity of the screw conveyor of the rotary incinerator according to the second embodiment of the present invention.

In the figure, a furnace body 10 has a fireproof structure inside a substantially cylindrical shape, and more specifically, it is a cylindrical incinerator outer body 11 having a bent iron plate and a fireproof inside Brick is loaded and the incinerator inner body 12 is formed. Between the inside of the incinerator outer body 11 and the outside of the incinerator inner body 12,
Air supply path 15 for combustion air for supplying air required for combustion
Are formed. Further, in the incinerator inner body 12, there are a plurality of supply holes 13 for supplying the combustion air supplied to the air supply passage 15 into the incinerator inner body 12, and two upper and lower supply holes 13 are arranged at substantially equal intervals.
Rows are drilled. The supply hole 13 is formed toward the center of the incinerator inner body 12 and supplies the combustion air toward the center. However, the supply hole 13 when implementing the present invention
The number of rows and the number of rows are not specified, but two rows at positions of 1/3 and 2/3 from the bottom are desirable. At the lower end of the furnace body 10, a crosspiece 14 as a virtue is disposed, and incineration ash or the like is dropped downward to supply the supply hole 13 and the screw conveyor 4.
The wind blown from 0 prevents the incineration ash from rising.

That is, the furnace body 10 includes the crosspiece 14 as a virtue.
Incinerator outer body 11 and incinerator inner body 12 at the upper part of the incinerator 10
A is formed, and an incineration ash discharging unit 10B for removing and collecting the incineration ash is formed under the crosspiece 14 as Gokutoku.

An air supply passage 1 for combustion air formed between the inside of the incinerator outer body 11 and the outside of the incinerator inner body 12.
5 may be formed over the entire length of the incinerator inner body 12, or the portion where the supply hole 13 is located, for example, 1/3 and 2 /
It may be formed only in two rows at position 3.

The furnace body 10 has an opening / closing door that can open and close an opening 21 that connects the outside of the incinerator outer body 11 and the inside of the incinerator inner body 12 to the incinerator outer body 11 of the furnace body 10. 20
Are arranged by hinges. The opening / closing door 20 in the present embodiment includes the incineration unit 10A and the incineration ash discharge unit 10B.
The upper opening / closing door 20A and the lower opening / closing door 20B are separately arranged at two locations. The upper opening / closing door 20A and the lower opening / closing door 20B may be double opening / closing doors or single opening / closing doors. In the embodiment of the present invention, the case where the upper opening / closing door 20A and the lower opening / closing door 20B are separated has been described. 20B can be an integrated door.

A blower 25 is arranged on the outer body 11 of the incinerator. The output of the blower 25 is connected to an air supply passage 15 of combustion air for supplying air required for combustion formed between the inside of the incinerator outer body 11 and the outside of the incinerator inner body 12. The output of the blower 25 is also connected to the exhaust pipe 74 of the cyclone 70 via the supply pipe 26, and at the same time,
Air is also supplied to the cyclone 70 side. In any case, the blower 25 may be any one as long as it supplies combustion air into the furnace body 10 from the air supply passage 15 formed on the outer periphery of the furnace body 10.

The incinerator outer body 11 is provided with a burner 30 for injecting a flame into the inside of the incinerator inner body 12 of the furnace body 10. The burner 30 of the present embodiment uses a commercially available kerosene burner, but the burner 3 in the case of implementing the present invention
The fuel of 0 is not particularly specified.

The screw conveyor 40 for supplying the burned material 90 together with the compressed air is arranged in the incinerator outer body 11 so as to inject the burned material 90 and the compressed air in the tangential direction of the outer periphery of the furnace body 10. ing. Screw conveyor 4
Reference numeral 0 is composed of a screw 41, a tubular body 42 that wraps the screw 41 and determines a destination of conveyance, and a drive motor 43 that rotates the screw 41, and these configurations are known. A substantially intermediate position of the screw conveyor 40 is connected to a blower 45 that supplies the burned material 90 together with the compressed air. A flexible suction pipe line 46 is connected to the input side of the blower 45, and a fixed or flexible discharge pipe 47 is connected to the output side. Therefore, the blower 45
Sucks the burned material 90 together with air through the flexible suction conduit 46, accelerates it with the blower 45, and supplies the burned material 90 and compressed air to the screw conveyor 40.

The water-cooled container 50 for lowering the discharge temperature of the combustion gas is arranged on the upper part of the furnace body 10 and is formed by passing the combustion gas burned in the furnace body 10 through a plurality of tubes. Specifically, the upper end and the lower end of the tubular body 51 are sealed with an upper plate 52 and a lower plate 53, and the upper plate 52 and the lower plate 53 are sealed.
Has a plurality of small holes 54, 55, and the small holes 54, 55 are joined with a pipe material to form a heat exchange pipe line 56. Therefore, the small holes 54, 55 and the heat exchange line 56
Forms a discharge path for discharging the combustion gas of the incinerator inner body 12 upward, and the space inside the cylindrical body 51 other than the heat exchange conduit 56 constitutes a water-cooled container. Of course, due to the heat exchange between the heat exchange pipe line 56 and the lower plate 53, the cylindrical body 5 other than the heat exchange pipe line 56 can be obtained.
The water in 1 is heated to hot water.

The water in the cylindrical body 51 other than the heat exchange conduit 56 is supplied from the water supply pipe 61 and is supplied to the lower portion of the water-cooled container 50 via the water level adjuster 60. The water level adjuster 60 functions as a communication pipe together with a pipe connecting the position of the water level to the lower part by a pipe connected to the upper part of the water-cooled container 50, and always keeps the upper water level constant. Then, the heated water in the upper portion can be discharged from the faucet 62. In the water-cooled container 50 of the present embodiment, since the heat exchange pipe line 56 is arranged so that convection does not occur in the container, the hot water take-out portion is at the top, but it does not cause convection. If so, the take-out position may be from the lower part of the water-cooled container 50.

At the upper part of the water-cooled container 50, a steam vent 57 for releasing steam pressure is arranged.

The combustion gas that has passed through the heat exchange pipe 56 of the water-cooled container 50 is cooled by the heat exchange of the water-cooled container 50, and rises to the position of the upper plate 52 of the heat exchange pipe 56. The rising combustion gas is collected by the collecting unit 71 and is connected to the cyclone 70 via the pipe line 75. Cyclone 7
When the discharge speed of the combustion gas to be discharged is reduced to 0, fine powder such as carbon contained in the supplied combustion gas is dropped and separated, and the fine powder is accumulated in the dust container 72. It is a thing. Main body 41 of cyclone 70
A dust container 72 is provided at the bottom end of the cyclone 70 to discharge the fine powder contained therein by operating the opening / closing rod 73.

As described above, the rotary incinerator according to the present embodiment comprises the incinerator outer body 11 and the incinerator inner body 12, and the inside of the furnace body 10 has a substantially cylindrical refractory structure,
An opening / closing door 20 capable of opening and closing an opening 21 provided for the incinerator outer body 11 and the incinerator inner body 12 of the furnace body 10, and the furnace body 1
A flame is injected into the inside of the furnace main body 10 and the screw conveyor 40 that supplies the burned material 90 together with compressed air in a substantially tangential direction of the outer periphery of 0, specifically, in the substantially tangential direction of the outer periphery of the incinerator inner body 12. A burner 30 and an outer periphery of the furnace body 10, more specifically, a blower 25 for supplying combustion air into the furnace body 10 from an air supply path 15 formed between the incinerator outer body 11 and the incinerator inner body 12. Formed on the top of the furnace body 10,
A plurality of heat exchange conduits 5 are provided for the combustion gas burned in the furnace body 10.
A water-cooled container 50 that lowers the temperature of the combustion gas by passing through the inside of the container 6 is provided.

Therefore, the burned material 90 supplied from the screw conveyor 40 together with the compressed air secures the amount of combustion air required for the burned material 90 to burn due to the mixture of the supplied burned material 90 and the air. Then, since it burns, it becomes possible to burn with good combustion efficiency. Also, the furnace body 1
In 0, since the screw conveyor 40 supplies the burned material 90 and compressed air to the tangential direction of the outer circumference of the furnace body 10, the burned material 90 falls while swirling the outer circumference of the furnace body 10. Or while stagnating in the vertical direction,
Alternatively, when the fuel is burned down with a slight decrease, the mass becomes lighter and rises, so that the flight trajectory until burning can be lengthened, and more complete combustion is possible. Since the combustion gas passes through the water-cooled container 50, the temperature of the combustion gas discharged to the outside can be lowered.

Further, there is provided a water-cooled container 50 which is formed on the upper part of the furnace body 10 and which lowers the temperature of the combustion gas by passing the combustion gas burned in the furnace body 10 through a plurality of tubes. Since the combustion gas that has passed through the water-cooled container 50 is discharged through the plurality of heat exchange pipes 56 of the water-cooled container 50, the combustion gas other than the plurality of heat exchange pipes 56 of the container is discharged. Furnace body 10 by the lower end
Since the upper surface of the furnace is closed and the limited air is discharged as a surface, the burned material 90 does not affect the flight trajectory of the outer circumference of the furnace body 10 and thus more complete combustion is possible. The combustion gas burned in the furnace body 10 is cooled in the water-cooled container 50, and if the combustion gas is not completely burned, the probability that it will be discharged from the furnace body will be low even if the weight is temporarily reduced.

Here, when the present invention is carried out, the furnace body 10 having a substantially cylindrical interior having a refractory structure may form a substantially cylindrical space inside, and the outer body 11 of the incinerator or the inside of the incinerator may be formed. It is also possible to form only one of the bodies 12.

The opening / closing door 20 that can open and close the opening 21 with respect to the furnace body 10 can be a single door or a double door or more. Further, the innermost door has a furnace body 10
It is also possible to provide a window made of refractory glass that can judge the combustion state inside.

In the present invention, the screw conveyor 40 for supplying the combusted material 90 together with the compressed air in the tangential direction of the outer periphery of the furnace body 10 crushes the combusted material 90 supplied in the block state and divides it into air. Although it is a form that is easily mixed and burned, in the case of carrying out the present invention, a transport means such as a belt conveyor can be used as long as the supplied burned material 90 is hard to be in a block state. Is. Of course, you may convey by compressed air.

In the burner 30 for injecting a flame into the furnace body 10, since the burned material 90 is rotating in the circumferential direction of the furnace body 10, when the present invention is carried out, the burner 30 should be directed toward the center. Alternatively, the flame may be ejected so as to match the rotation direction.

Further, the blower 25 for supplying the combustion air into the furnace body 10 supplies the combusted material 90 together with the compressed air in the tangential direction of the outer periphery of the furnace body 10, and does not interfere with the air flow. Degree of supply is desirable. For that purpose, it is preferable to supply from the outer circumference or from the lower part.

Since the rotary incinerator according to the present embodiment further comprises the cyclone 70 for removing fine powder from the combustion gas that has passed through the water-cooled container 50, the combustion gas whose temperature has dropped is sooted. Etc. can be removed with high efficiency. Since the cyclone 70 has a function of a filter, it can be replaced with another filter when the present invention is carried out.

In the tangential direction of the outer periphery of the furnace body 10 of the rotary incinerator according to the present embodiment, the screw conveyor 40 for supplying the burned material 90 with air is supplied from the upper portion while rotating in the circumferential direction. In the case of using a mixer that mixes the combustion products 90 and the combustion air, the combustion products 90 and the combustion air are mixed well, and the combustion efficiency can be improved.

Here, the screw conveyor 40 for supplying the burned material 90 together with air has a function of crushing the burned material 90 supplied in a block state, but before that,
A mixer for mixing the burned material 90 and the combustion air can be provided.

FIG. 7 shows this, and a mixer 80 for mixing the burned material 90 and combustion air is attached to the driving motor 43 side of the screw conveyor 40. The input side of the mixer 80 is the discharge pipe 4 on the output side of the blower 45.
7 and is supplied with burned material 90 and compressed air. In the mixer 80, the burned material 90 mixes with air, and the burned material 90 settles downward. Mixer 80
The excess compressed air inside is discharged to the outside through the valve 82. If the mixer 80 of the present embodiment performs mechanical agitation, the burned material 90 will mix with the air more efficiently. The cap 83 is
It is used to prevent rainwater from entering.

As described above, by connecting the mixer 80 to the screw conveyor 40 and supplying the burned material 90, the burned material 90 can be crushed and air can be included between the crushed materials.

A blower 25 for supplying combustion air into the interior of the furnace body 10 of the rotary incinerator according to the present embodiment supplies the combustion air to the inside of the cyclone 70 at the same time to supply the combustion air to the Bernoulli. According to the theorem, the combustion gas is sucked. In this way, since the supply of combustion air and the exhaust of combustion gas are generated at least at the same time, by using both at the same time,
A highly reliable rotary incinerator can be provided without performing a confirmation action with a sensor or the like.

Here, since the cyclone 70 has a function as a filter, a pump can be provided as a discharge pressure instead of the suction pressure of the cyclone 70.

[0049]

As described above, in the rotary incinerator according to the first aspect of the present invention, there is provided a furnace body having a substantially cylindrical interior having a refractory structure, an opening / closing door capable of opening and closing the opening of the furnace body, and the furnace body. The tangential direction of the outer periphery of, the screw conveyor that supplies the burned material together with compressed air, the burner that injects the flame into the furnace body, and the air passage formed on the outer periphery of the furnace body from the inside of the furnace body. A blower that supplies combustion air to the furnace, and a water-cooled container that is formed in the upper portion of the furnace body and passes the combustion gas burned in the furnace body through a plurality of tubes to reduce the temperature of the combustion gas. It is equipped with.

Therefore, the burned material supplied together with the compressed air on the screw conveyor is burned by the mixture of the burned material and the air, so that the burned material secures the amount of combustion air required for burning and burns. Good combustion becomes possible. Further, in the furnace body, the screw conveyor supplies the burned material and compressed air to the tangential direction of the outer circumference of the furnace body, so that the burned material swirls its outer circumference in the furnace body. While burning, the flight trajectory until burning can be lengthened, and more complete burning becomes possible.

Further, a water-cooled container is provided in the upper portion of the furnace body, and the combustion gas burned in the furnace body is passed through a plurality of pipes to lower the temperature of the combustion gas. Therefore, the temperature of the combustion gas discharged to the outside can be lowered. Then, the combustion gas is discharged by passing through a plurality of pipes of the water-cooled container, and except for the plurality of pipes, the upper end of the furnace body is closed by the lower end of the container, and the limited air is covered. Therefore, complete combustion is possible without interfering with the flight trajectory of the burned material. And
Since the combustion gas burned in the furnace body is cooled in the water-cooled container, the gas that has not been completely burned has a low probability of being discharged from the furnace body even if it becomes temporarily lightweight.

According to a second aspect of the present invention, in the rotary incinerator according to the first aspect, a cyclone for removing fine powder from the combustion gas passing through the water-cooled container is further provided. In addition to the effect described in (1), soot and the like can be removed with high efficiency from the combustion gas whose temperature has dropped.

In the rotary incinerator according to the third aspect of the present invention, the screw conveyor for supplying the burned material together with the air in the tangential direction of the outer circumference of the furnace main body is provided with the burned material supplied while rotating in the circumferential direction from the upper side. A mixer for mixing the combustion air is provided, and in addition to the effect described in claim 1 or 2, mixing of the burned material and the combustion air is performed well, and combustion efficiency can be improved.

A blower for supplying combustion air to the inside from an air passage formed on the outer periphery of the furnace body of the rotary incinerator according to claim 4 simultaneously supplies the combustion air to the discharge side of the cyclone, and according to Bernoulli's theorem, combustion gas is generated. It is something to suck. Therefore, in addition to the effect according to any one of claims 1 to 3, since the supply of the combustion air and the exhaust of the combustion gas are generated at least at the same time, both are used at the same time. As a result, a highly reliable rotary incinerator can be provided without performing a confirmation action with a sensor or the like.

[Brief description of drawings]

FIG. 1 is a front view showing an overall outline of a rotary incinerator according to a first embodiment of the present invention.

2 is a cross-sectional view taken along the line AA of FIG. 1 taken along the line AA.

3 is a sectional view taken along the line BB of FIG. 1 taken along the line BB.

FIG. 4 is a cross-sectional view taken along the line CC of FIG. 1 taken along the line CC.

5 is a cross-sectional view taken along the line D-D of FIG. 1 taken along the line D-D.

[Fig. 6] Fig. 6 is a front view including a partial cross-sectional view schematically showing an upper portion of the rotary incinerator according to the first embodiment of the present invention.

[Fig. 7] Fig. 7 is a front view including a partial cross-sectional view schematically showing the vicinity of a screw conveyor of a rotary incinerator according to a second embodiment of the present invention.

[Explanation of symbols]

10 furnace body 11 Incinerator outer body 12 Inside of incinerator 15 Air supply path 20 open / close door 21 opening 25 blower 30 burners 40 screw conveyor 50 water-cooled container 56 heat exchange line 70 cyclone 80 mixer 90 Burned material

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) F23K 3/02 F23L 1/00 E F23L 1/00 F23J 15/00 K F term (reference) 3K023 EA03 EA10 3K061 LA03 LA06 LA08 LA11 LA14 3K062 EB05 EB08 EB12 EB15 EB19 EB27 EB33 EB43 3K065 AA16 AB01 AC01 AC17 EA06 EA16 EA23 EA31 EA33 EA46 EA57 HA02 HA03 3K070 DA07 DA09 DA29 DA47 DA49

Claims (4)

[Claims] 1. A furnace body having a refractory structure having a substantially cylindrical interior, an opening / closing door capable of opening and closing an opening for the furnace body, and a material to be burned is squeezed in a tangential direction of an outer periphery of the furnace body. A screw conveyor for supplying with air, a burner for injecting a flame into the inside of the furnace body, a blower for supplying combustion air into the inside of the furnace body, and an exhaust formed in the upper part of the furnace body and burned in the furnace body And a water-cooled vessel that lowers the temperature of the discharged combustion gas by passing the generated combustion gas through a plurality of pipes. 2. The rotary incinerator according to claim 1, further comprising a cyclone for removing fine powder from the combustion gas that has passed through the water-cooled container. 3. The screw conveyor for supplying the burned material together with air to the tangential direction of the outer periphery of the furnace body is a mixer for mixing the burned material and combustion air to be supplied while rotating in the circumferential direction from above. The rotary incinerator according to claim 1 or 2, wherein the rotary incinerator is provided. 4. A blower for supplying combustion air to the inside from an air supply passage formed on the outer periphery of the furnace main body simultaneously supplies the combustion air to the discharge side of the cyclone, and sucks the combustion gas according to Bernoulli's theorem. The rotary incinerator according to any one of claims 1 to 3.