JP2005127680A - Induction heating type pyrolizing furnace - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pyrolizing furnace with favorable combustion efficiency capable of carrying out pyrolysis while minimizing output of harmful gas such as dioxin. <P>SOLUTION: The induction heating type pyrolizing furnace of a rotary kiln system is provided by rotatably providing a sealable electromagnetic induction vessel. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a furnace provided with an electromagnetic coil and thermally decomposes waste by electromagnetic induction, and in particular, by rotating the furnace, the waste can be thermally decomposed while stirring, thereby increasing the processing efficiency. The present invention relates to an induction heating type pyrolysis furnace that can be efficiently burned to the end and can be processed without generating harmful gases such as dioxin as much as possible.

  In conventional incinerators, waste is put into a combustion container and then burned by injecting a gas flame, or gas is blown upward from below and discarded using that force. There was a fluidized bed type that stirs and burns things. There has also been an induction pyrolysis furnace in which waste is put into a container heated by electromagnetic induction from an electromagnetic coil and incinerated. According to induction heating, only a container such as graphite or metal is heated, so that there are advantages such as high energy efficiency, high heating and cooling speed, and no heat generation other than the container.

  In these incinerators, even when trying to heat the waste at once, uneven burning tends to occur, combustion efficiency is poor, incomplete combustion occurs, and harmful gases such as dioxin are generated. there were. Such a problem similarly occurred in an induction heating incinerator equipped with an induction coil. In addition, according to the treatment standards of the Waste Disposal Law, it was stipulated that incineration only prohibited the use of open burning and incineration using treatment facilities. It can be said that the emission concentration standards for dioxins are strict. In order to treat industrial waste while satisfying these standards, higher efficiency and more complete combustion capacity are required.

  In order to solve such problems and provide a pyrolysis furnace that has good combustion efficiency and can decompose harmful gas such as dioxin as much as possible, Japanese Patent Application Laid-Open No. 2003-2003 14216 is an induction heating cracking furnace. This consists of a waste intake and discharge port equipped with a shutter, an outer induction heating coil, and a sealable electromagnetic induction container equipped with a screw conveyor for conveying the inner waste. . The waste is taken from the intake port to the discharge port by a screw conveyor.

According to this induction pyrolysis furnace, the combustion energy itself is electricity and very clean. When an alternating current is passed through the electromagnetic induction coil, an induction current is generated in an alloy furnace placed in the coil by magnetic lines generated from the coil, and heat is rapidly generated. The waste is pyrolyzed while being conveyed through the high temperature electromagnetic induction container to the discharge port by a screw conveyor. The thermal decomposition efficiency at this time is extremely good, and it is possible to avoid generating harmful gases such as dioxin as much as possible.
JP 2003-014216 A

  Certainly, the induction heating cracking furnace disclosed in Japanese Patent Application Laid-Open No. 2003-014216 has a high efficiency of the thermal cracking process. If this is possible, it can be said that there are significant advantages for the industry. An object of the present invention is to solve such a problem.

Means and action for solving the problem

  The above problem is that the inside of the intake port, the discharge port, the outer induction heating coil, the inner waste feeding means, and the intake port and the discharge port can be sealed. And an induction heating type pyrolysis furnace characterized in that an electromagnetic induction vessel having a double shutter and an air vent for lowering the internal atmospheric pressure is rotatably provided. The Since the electromagnetic induction vessel is rotatably provided, it can be said that this is an unprecedented rotary kiln type induction heating pyrolysis furnace.

  The intake port is a port for introducing waste into the electromagnetic induction container, and the discharge port is a port for discharging combustion ash from the electromagnetic induction container. After introducing waste from the intake of the electromagnetic induction container that performs the thermal decomposition treatment, close the double shutter to seal the interior, and evacuate the air from the vent to the vacuum or near vacuum. Then, the coil for induction heating is energized to bring the inside of the electromagnetic induction container into a high temperature state. The waste in the electromagnetic induction container is conveyed through a high temperature state to a discharge port by an internal waste feeding means. When sending or discharging waste into an electromagnetic induction container that performs thermal decomposition, the double shutter is operated so that the other shutter is closed when one of the shutters constituting the shutter is opened. The electromagnetic induction container for performing the thermal decomposition treatment should not be directly connected to the outside. This is expressed as sealed.

  In this induction heating type pyrolysis furnace, the combustion energy itself is electricity and very clean. When an alternating current is passed through the electromagnetic induction coil, an induction current is generated in an alloy electromagnetic induction container (rotary kiln) placed in the coil by magnetic lines generated from the coil, and heat is rapidly generated. As a result, the waste can be decomposed almost completely, that is, with a very good thermal decomposition efficiency, and without generating harmful gases such as dioxin as much as possible. The amount of heat generated is determined by the material and mass of the electromagnetic induction container and the amount of electrical energy supplied to the electromagnetic induction coil. Therefore, since the electric power applied to the coil can be adjusted freely, flexible disassembly control can be performed.

  In particular, since this electromagnetic induction container is of a rotary kiln type, the electromagnetic induction container rotates, so that the waste inside is thermally decomposed while being uniformly stirred. Further, the stirring is facilitated by the waste feeding means. Since the waste feeding means is provided inside the rotary kiln type electromagnetic induction container, the waste can be conveyed to the discharge port while being subjected to thermal decomposition treatment. In addition, by providing the electromagnetic induction container so as to be inclined so that the discharge port side is lower than the intake port side, it is possible to assist the conveyance work by the waste feeding means.

  Next, in this induction heating type pyrolysis furnace, the waste feeding means can be a large number of wings erected on the inner wall of the electromagnetic induction container. Since many wings are integrated with a rotary kiln type electromagnetic induction container, the electromagnetic induction container rotates as the electromagnetic induction container rotates, and each wing advances the waste first and the whole works together to move the waste first. Transport to. In addition, since the wings rotate by hooking the waste, there is an action of lifting and dropping the waste, which is very useful for stirring the waste. In addition, since the wings are heated together with the electromagnetic induction container, the waste being conveyed can be efficiently heated. Further, the wing may be heated by electromagnetic induction.

  In addition, this wing | blade shall be attached in the reverse direction in the vicinity of the said discharge port. The waste in the electromagnetic induction container is carried to the discharge port by the entire wing in the electromagnetic induction container in a high temperature state. By attaching a plurality of these wings in the reverse direction near the discharge port, the carbon-like combustion ash is not sent further, but is pushed back from here, and is efficiently discharged from the discharge port. It is. This concept of providing the wings in the opposite direction is equally applicable to other waste feeding means.

  The waste feeding means may be corkscrew-like wings erected on the inner wall of the electromagnetic induction container. One continuous wing protruding from the inner wall of the electromagnetic induction container forms a spiral on the inner wall, and the waste can be conveyed to the discharge port by rotation.

  Further, the waste feeding means may be a corkscrew groove formed on the inner wall of the electromagnetic induction container. Waste can be caught and stirred by this groove. Further, the waste can be conveyed to the discharge port by the rotation of the corkscrew-like groove.

  The waste feeding means may be a screw conveyor provided in an electromagnetic induction container. The waste in the electromagnetic induction container is thermally decomposed while the high-temperature electromagnetic induction container rotates, while being agitated, and is simultaneously conveyed to the discharge port by the screw conveyor. The screw conveyor may be provided with the rotation center of the electromagnetic induction container and the rotation axis aligned. Alternatively, even a screw conveyor having a smaller diameter can be eccentric and installed at a position near the bottom of the electromagnetic induction container.

  The electromagnetic induction container may have a double wall surface. By using an electromagnetic induction container that is doubled from the inner cylinder and the outer cylinder, the heat insulation effect can be increased. It is also preferable that the air pressure between the double cylinders is kept low by configuring so that air can be extracted from the space between the inner cylinder and the outer cylinder for explosion protection.

  Further, the periphery of the electromagnetic induction container can be covered with a heat insulating material. This electromagnetic induction container generates heat by energizing an induction heating coil on the outside thereof. Therefore, by taking the arrangement of the electromagnetic induction vessel, heat insulating material, and coil in order toward the outside, the heat insulating material will block the heat from the electromagnetic induction vessel, and outside the induction heating type pyrolysis furnace. Even if an operator touches it, it is safe, and there is an effect that less heat is transmitted to the coil. In addition, it is also possible to use together with the double structure of the electromagnetic induction container mentioned above.

  The electromagnetic induction container may be provided with an explosion-proof safety valve. If a large amount of gas is generated unintentionally and unexpectedly from the waste being processed in the electromagnetic induction container that performs the thermal decomposition treatment, there is a possibility that the electromagnetic induction container may be dangerous. In preparation for such a case, gas is vented from the safety valve. This makes the electromagnetic induction container safer.

  Further, a control device that controls opening and closing of the double shutter can be provided. As described above, the double shutter is operated so that when one is opened, the other is closed so that the electromagnetic induction container does not directly communicate with the outside. For example, when the shutter inside the double shutter of the waste intake port is closed and at least one of the double shutters of the discharge port is closed, the electromagnetic induction container is almost sealed. At this time, since the outer shutter of the double shutter of the waste intake port is opened, the waste can be taken up to the front of the inner shutter. By closing the outer shutter and then opening the inner shutter, the waste can be taken into the electromagnetic induction container while the electromagnetic induction container is sealed. Similarly, when the shutter outside the double shutter of the discharge port is closed and at least one of the double shutters of the intake port is closed, the electromagnetic induction container is almost sealed. Under this condition, since the shutter outside the double shutter of the discharge port is closed, the combustion ash can be discharged to the front of the outer shutter. By closing the inner shutter and then opening the outer shutter, the combustion ash can be discharged out of the electromagnetic induction container while the electromagnetic induction container is sealed. As described above, since the control of the double shutter can be automatically performed as appropriate by the control device, it is easy to open and close the shutter, and it is possible to prevent the occurrence of errors. In addition, in the case where shutters other than the double shutter are provided, it is possible to configure such that these control units can be controlled by the control device.

  In addition, the electromagnetic induction container is rotatably inserted into sleeves corresponding to each of the waste intake port, the discharge port, and the exhaust port, and the waste intake port and the discharge port are respectively connected to the sleeve. The electromagnetic induction container may be in a hermetically sealed state so that the inside can be evacuated when it does not coincide with the sleeve side mouth corresponding to the mouth. That is, by rotating the electromagnetic induction container and making each of the mouths coincide with the mouths on the sleeve side, the air can be vented, and by making them inconsistent, the air can be blocked. In addition, the induction heating type pyrolysis furnace of the present invention can be housed in a casing that blocks electromagnetic waves. With this configuration, it is possible to prevent electromagnetic waves generated from the induction coil from leaking outside the electromagnetic induction container.

The invention's effect

  Since a rotary kiln type induction heating pyrolysis furnace is provided with a hermetic electromagnetic induction container that can be rotated, when the electromagnetic induction container rotates, the waste in it is pyrolyzed while being uniformly stirred. There is an effect to say. Furthermore, there is an effect that the stirring is promoted by the waste feeding means. As a result, the efficiency of the thermal decomposition treatment is further improved.

BEST MODE FOR CARRYING OUT THE INVENTION

(First embodiment)
1 to 4 show a first embodiment of the present invention, which is characterized in that an electromagnetic induction container 1 for performing a thermal decomposition treatment is rotatably provided, and waste is conveyed to the inner wall surface of the inner cylinder 10. The point is that wings 6 are provided (FIG. 1).

  The electromagnetic induction container 1 includes an outer cylinder 11 provided so as to leave a gap around the inner cylinder 10, a heat insulating material 12 is wound around the outer cylinder 11, and a coil 2 is disposed around the outer cylinder 11. The coil 2 is hollow, and the coil 2 is cooled by flowing water therethrough. The inner cylinder 10 and the outer cylinder 11 are connected to base cylinders 13 and 18 at both ends thereof, and the base cylinders 13 and 18 are rotatably provided on outer cylinder receivers 14 and 19 via bearings 30. It has been. The gear trains 3 and 3 provided on the base cylinders 13 and 18 are connected to a motor (not shown) as a drive source so that the electromagnetic induction container 1 is rotatable.

  The inner cylinder 10 has an inclined posture so that many wings 6 can be sent to the discharge port 41 toward the discharge port 41 when the electromagnetic induction container 1 is rotated. Is attached. That is, the inner cylinder 10 and its wing 6 play a role of sending waste introduced from the intake port 40 to the discharge port 41. Although the illustrated wing 6 is schematically shown, the shape and size can be appropriately designed. The inner cylinder 10 has an explosion-proof valve 103 for releasing the pressure and an exhaust port 104 for reducing the pressure inside the cylinder prior to the thermal decomposition of the waste when the pressure in the cylinder increases to a dangerous level. And are provided. In the electromagnetic induction container 1 configured as described above, the location indicated by the symbol A in the figure is a waste introduction portion, the location indicated by the symbol B is a thermal decomposition processing portion, and the location indicated by the symbol C is It is a discharge part of a combustion thing (FIG. 1).

  An intake port 40 provided in the opening 15 of the electromagnetic induction container 1 is connected to a hopper 4 which is a waste input port. A primary shutter 5a is provided in the upper part of the cylindrical intake port 40, and a secondary shutter 5b is provided in the lower part. Each of the shutters 5a and 5b is a rotary shutter as shown in FIG. 4 and is attached so as to be able to rotate 45 degrees by a rotation shaft 50. The shutter 5 is rotated 45 degrees. An opening 51 and a non-opening 52 are provided at the moving position. Accordingly, when the opening 51 of the shutter 5 is located at the position of the intake port 40, waste can pass through this portion, and when the non-opening portion 52 is located at the position of the intake port 40, this portion is closed. The power source of the shutter 5 is a shutter motor (not shown). Further, the two shutters 5a and 5b are set to be opened and closed alternately. In order to prevent outside air from flowing into the electromagnetic induction container 1, an operation is performed so that the other of the shutters 5 a and 5 b is closed before the other is opened. In addition, a space between a sleeve 16 and an electromagnetic induction container 1 described later can be kept airtight. When the waste is taken into the electromagnetic induction container 1, the opening 15 of the electromagnetic induction container 1 is opened at the lower end of the intake port 40 before the shutter 5 b is opened. At a position corresponding to 17 (FIG. 3), a motor for the electromagnetic induction container 1 (not shown) is controlled so as to stop the rotation of the electromagnetic induction container 1. When the opening 15 and the opening 17 coincide, the shutter 5b is opened. During this series of operations, the shutter 5a is closed. According to this procedure, the waste is temporarily retained in the cylinder of the intake port 40 or sent to the electromagnetic induction container 1.

  Now, regarding the thermal decomposition treatment of the waste in the electromagnetic induction container 1, after introducing the waste into the electromagnetic induction container 1 from the intake port 40, the shutter 5 is closed and the inside is sealed. Then, air is evacuated from the vent 104 to a vacuum or a state close to vacuum, and the coil 2 for induction heating is energized to bring the inside of the electromagnetic induction container 1 into a high temperature state. As apparent from FIG. 2, the wing 6 is also heated by heating the inner cylinder 10. Further, when the electromagnetic induction container 1 is rotated, the waste inside is thermally decomposed while being uniformly stirred by the wings 6. Furthermore, since the rotating wings 6 catch and lift up the waste, the efficiency of the thermal decomposition process is very high. The wing 6 carries the waste to the discharge port 41.

  Next, the two rotary shutters 5c and 5d are also attached to the discharge port 41 of the electromagnetic induction container 1, and are set to open and close alternately. In this way, the airtightness in the electromagnetic induction container 1 is maintained when the combustion ash is temporarily retained in the cylinder of the discharge port 41, sent to, for example, a conveyor, or sent to the next cooling container, for example. . As a result of this configuration, the electromagnetic induction container 1 can be hermetically sealed with the two shutters 5a and 5b and the two shutters 5c and 5d. When taking out the waste to the outside of the electromagnetic induction container 1, the opening 100 of the electromagnetic induction container 1 is opened at the lower end of the discharge port 41 before the shutter 5 c is opened. The motor for the electromagnetic induction container 1 (not shown) is controlled so as to stop the rotation of the electromagnetic induction container 1 at a position that coincides with. When the opening 100 and the opening 102 coincide, the shutter 5c is opened. During this time, the shutter 5d is set to be closed. According to this procedure, the waste is temporarily retained in the cylinder of the discharge port 41 or taken out of the electromagnetic induction container 1.

(Second Embodiment)
The spiral wing 60 of this embodiment is schematically shown in the partial side view of FIG. In the first embodiment described above, a large number of wings 6 provided with an inclined posture on the inner wall surface of the inner cylinder 10 rotate as the electromagnetic induction container 1 rotates, and waste is directed toward the discharge port. It was attached so that it could be sent. On the other hand, in this embodiment, the spiral blade 60 that can send the waste taken in from the intake port 40 toward the discharge port 41 in accordance with the rotation direction of the electromagnetic induction container 1 on the inner wall surface of the inner cylinder 10. It is characterized in that is provided. When the electromagnetic induction container 1 rotates, the spiral wing 60 also rotates to send waste. When the electromagnetic induction container 1 is heated, the spiral wing 60 is also heated. The electromagnetic induction container 1 rotates to stir the waste, but at the same time, the spiral blade 60 also plays a role in waste stirrer, and an efficient induction heating process is realized.

(Third embodiment)
A similar action can be realized by the spiral groove 61 schematically shown in FIG. That is, the spiral groove 61 is provided on the inner wall surface of the inner cylinder 10 so that the waste taken in from the intake port 40 can be sent in the direction of the discharge port 41 in accordance with the rotation direction of the electromagnetic induction container 1. The spiral groove 61 is configured so that the spirals adjacent to the spiral wing 60 are closer to each other than the above-described spiral wing 60, thereby securing the catching ability with respect to the waste, that is, the waste transport ability.

(Fourth embodiment)
Next, FIG. 7 shows an electromagnetic induction container 1 ′ according to the fourth embodiment of the present invention. This feature is that only the inner cylinder 10 and the outer cylinder 11 that are induction-heated by the coil 2 rotate, and the intake port 40. In addition, the connection portion with the discharge port 41 is fixed, and the screw 63 is provided inside the electromagnetic induction container 1 ′ as a waste feeding means. The screw 63 can also be induction-heated.

  The electromagnetic induction container 1 ′ includes an outer cylinder 11 provided so as to leave a gap around the inner cylinder 10, a heat insulating material 12 is wound around the outer cylinder 11, and a coil 2 is disposed around the outer cylinder 11. The coil 2 has a hollow structure, and the coil 2 is cooled by flowing water into the hollow portion. The electromagnetic induction container 1 ′ is rotatably provided on the base cylinders 105 and 108 at both ends via the bearings 30. The gear trains 3 and 3 provided at both ends of the electromagnetic induction container 1 ′ are connected to a motor (not shown) as a drive source so that the electromagnetic induction container 1 ′ is rotatable. The base tubes 105 and 108 are supported by tube receivers 106 and 109 at both ends thereof.

  Screws are attached to a rotating shaft 62 connected to a motor (not shown) so as to penetrate the inside of the electromagnetic induction container 1 ′ by using cylindrical receivers 106 and 109 on the fixed side as a bearing with respect to the electromagnetic induction container 1 ′ on the rotation side. A screw conveyor having 63 is disposed, and plays a role of conveying the waste thrown into the hopper 4 to the discharge port 41. Further, a reverse screw 64 is attached to a portion of the discharge port 41, and the shape of the combustion ash is pushed back by the action of the reverse screw 64 so as to be smoothly delivered to the discharge port 41. The illustrated screw 63 and reverse screw 64 are schematic, but the shape and size can be designed as appropriate. A design in which the reverse screw 64 is larger than the screw 63 is also possible.

  On the other hand, an opening 107 is provided at the connecting portion of the base tube 105 to the intake port 40 attached to the base tubes 105 and 108 on the fixed side. Therefore, when the shutter 5 a is closed and the shutter 5 b is opened, the waste that has been taken up to the intake port 40 is dropped into the base tube 105. Therefore, the shutter 5b is closed again. The waste is conveyed from here to the base tube 108 by the screw 63. On the base tube 108 side, when the shutter 5d is closed and the shutter 5c is opened, the combustion ash is dropped into the discharge port 41 from the opening 110 provided at the connection portion with the discharge port 41 of the base tube 108. . Next, when the shutter 5c is closed and the shutter 5d is opened, the combustion ash in the discharge port 41 can be discharged to the outside. Thereafter, the shutter 5d is closed again.

  In the electromagnetic induction container 1 ′ of this embodiment, the waste is agitated by the rotation of the electromagnetic induction container 1 ′, but the waste is also agitated by the screw conveyor. The waste is efficiently pyrolyzed while being agitated and conveyed by a screw conveyor as a feeding means, and is sent to the discharge port 41 as incinerated ash.

(Fifth embodiment)
Next, FIG. 8 shows an electromagnetic induction container 1 ″ according to a fifth embodiment of the present invention. The feature of this embodiment is that a protective cylinder 111 is provided on the outer side of the inner cylinder 10 and the outer cylinder 11. The configuration is such that air is extracted from the protective cylinder 111. These configurations are housed in a housing 7 whose inner wall is covered with an electromagnetic shield 70, and the whole is packaged. 9 is a block diagram of a control device 8 used for controlling the shutter 5 to be described later, and the inner wall surface of the inner cylinder 10 is provided with the wing 6 described in the first embodiment. Yes.

  The rotary shaft 31 that rotatably supports the electromagnetic induction container 1 ″ is connected to a motor (not shown) as a drive source using both ends of the protective cylinder 111 as bearings. The opening 112 of the electromagnetic induction container 1 ″ is also provided. A sleeve 113 is attached to the inside of the electromagnetic induction container 1 ″ and the intake port 40 when the opening 114 of the sleeve 113 and the opening 112 coincide with each other. A sleeve 116 is also attached to the opening 115 of the induction container 1 ″. When the opening 117 of the sleeve 116 and the opening 115 coincide with each other, the inside of the electromagnetic induction container 1 ″ and the discharge port 41 communicate with each other. It should be noted that the inside of the protective cylinder 111 is configured such that the inside of the electromagnetic induction container 1 ″ and the inside of the sleeves 113 and 116 can be evacuated.

  Next, the intake port 40 is connected to a hopper 4 which is a waste input port. A shutter 5a is provided in the upper part of the cylindrical intake port 40, and a shutter 5b is provided in the lower part. These two shutters 5a and 5b are set to be opened and closed alternately. In order to prevent the outside air from flowing into the electromagnetic induction container 1 ″, the shutter 5a, b is operated so as to be closed before the other is opened. A shutter 5c is provided above the discharge port 41. A shutter 5d is provided below the shutter 5d, and these two shutters 5c and 5d are set so as to be alternately opened and closed. In order not to flow in, the shutter 5c, d is operated before closing one of the shutters 5c, d, and these shutter groups are controlled by the control device 8.

  An illustration for determining the rotation angle of the rotating shaft 31 for matching the opening 114 and the opening 112 described above or the opening 117 and the opening 115, that is, the rotation angles of the sleeves 113 and 116. The control device 8 shown in FIG. 9 controls the operation of the pulse motor that does not. The four shutters 5 described so far use a motor (not shown) as a drive source, and this motor, the above-described pulse motor, and the control device 8 are connected by a wiring 80.

  The electromagnetic induction container 1 ″ and the like described above are housed in a casing 7 whose inner wall is covered with an electromagnetic shield 70. The whole is packaged. A sprinkler 71 is provided in the upper part of the casing 7. With this configuration, problems that occur in the housing 7 can be stopped in the housing 7 so as not to be exposed to the outside, for example, electromagnetic leakage and gas leakage can be prevented. In addition, the fire can be extinguished by the sprinkler 71. Further, the shutters 5a, b and 5c, d can prevent the spread of pathogenic bacteria derived from the waste, etc. Still further, the inner wall of the housing 7 can be insulated. It is also possible to use it by covering it with or slightly reducing the pressure inside the housing 7.

(Sixth embodiment)
The shutter 53 of this embodiment is a butterfly shutter, and includes two open / close plates 54 and 54 that open downward from a rotation shaft 55 at the center as shown in FIG. The two open / close plates 54 and 54 are operated by a motor (not shown) to open and close. However, as in the induction heating type pyrolysis furnace of the present invention, the waste can be dropped from the intake port 40 or the discharge port. It is suitable for the structure of dropping combustion ash from 41 and sending it to the next stage.

(Seventh embodiment)
FIG. 11 shows the shutter 56 of the seventh embodiment. This is because the entire shutter is opened by retreating each shutter piece 57 arranged in rotational symmetry toward the outer peripheral portion in the direction of the outer peripheral portion, and the entire shutter is closed by protruding toward the central portion. It is.

(Eighth embodiment)
FIG. 9 is an explanatory diagram of a cutter according to the seventh embodiment. This can be provided in the hopper 4, the intake port 40, the introduction part A of the electromagnetic induction container 1 ′, etc., mainly for pulverizing the waste to facilitate the thermal decomposition treatment. . Two circular cutters 9 and 90 each having a crushing blade 91 are provided near a motor (not shown) as a drive source. The cutter 9 is attached to the high speed shaft of the motor, and the cutter 90 is attached to the low speed shaft of the motor. ing. Accordingly, the waste is pulverized between the two cutters 9 and 90 having different rotation speeds.

  The present invention is not limited only to these embodiments. Various modifications can be provided within the spirit of the present invention. For example, the form of the electromagnetic induction container is arbitrary. Also, since the type of the double shutter is arbitrary, for example, it does not perform a rotational movement like the shutter 5 shown in FIG. 4, but a method of switching between the opening 51 and the non-opening 52 by performing a sliding movement. Can be. It is also possible to design the induction heating coil to be cooled from the outside.

  Regarding the waste feeding means, a screw conveyor is provided only for this part as a waste to be sent from the introduction part A to the thermal decomposition processing part B, and in the thermal decomposition processing part B, the waste is sent by the blade 6. It is possible to combine several types of feeding means such as. Further, the air-tightness of the thermal decomposition processing unit B is set such that the space between the introduction unit A and the thermal decomposition processing unit B and the thermal decomposition processing unit B and the discharge unit C are separated by, for example, the shutter 56 in FIG. You may comprise so that can be ensured.

  In addition, a sterilization section may be provided at the waste intake port. It becomes possible to sterilize the waste prior to putting it inside the electromagnetic induction container. An ozonizer can be used for this sterilization part. That is, ozone (O3) is generated and sterilized. Moreover, you may provide a drying part in the front | former stage of an electromagnetic induction container. This is because a product containing a large amount of water, such as diaper, has better decomposition efficiency if it is dried once before gasification by induction heating.

  In addition, it is possible to arrange the induction heating type pyrolysis furnace of the present invention in a plurality of stages at the top and bottom, and to arrange the upstream discharge port connected to the subsequent intake port. As a result, it is possible to share the processing, to perform the thermal decomposition process for a longer time, or to perform a large amount of the thermal decomposition process at one time.

It is a schematic diagram of the induction heating-type pyrolysis furnace of 1st Embodiment. It is a cross-sectional schematic diagram of the electromagnetic induction container 1 of the embodiment. It is a perspective view of the sleeve 16 of the embodiment. It is a top view of the shutter 5 of the bear of the implementation. It is a partial side view of the spiral feather 60 of 2nd Embodiment. It is a partial side view of the spiral groove 61 of 3rd Embodiment. It is a schematic diagram of the induction heating type pyrolysis furnace of 4th Embodiment. It is a schematic diagram of the induction heating-type pyrolysis furnace of 5th Embodiment. It is a block diagram of the control part of the embodiment. It is a side view of the shutter of 6th Embodiment. It is a top view of the shutter of 7th Embodiment. It is explanatory drawing of the cutter of 8th Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electromagnetic induction container 1 'Electromagnetic induction container 1 "Electromagnetic induction container 10 Inner cylinder 11 Outer cylinder 12 Heat insulating material 13 Base cylinder 14 Tube receiver 15 Opening part 16 Sleeve 17 Opening part 18 Base cylinder 19 Tube receiver 100 Opening part 101 Sleeve 102 opening Part 103 explosion-proof valve 104 exhaust port 105 base cylinder 106 cylinder receiver 107 opening 108 base cylinder 109 cylinder receiver 110 opening 111 protective cylinder 112 opening 113 sleeve 114 opening 115 opening 116 sleeve 117 opening 2 coil 3 gear train 30 Bearing 31 Rotating shaft 4 Hopper 40 Intake port 41 Discharge port 5 Shutter 50 Rotating shaft 51 Opening portion 52 Non-opening portion 53 Shutter 54 Opening and closing plate 55 Rotating shaft 56 Shutter 57 Shutter piece 6 Feather 60 Spiral blade 61 Spiral groove 62 Rotation Shaft 63 Screw 64 Reverse screw 7 Housing 70 Electromagnetic shield 71 Sprinkler 8 Control device 80 Wiring 9 Cutter 90 Cutter 91 Grinding blade A Introduction part B Pyrolysis process part C Discharge part

Claims (11)

  Waste shutter, discharge port, outer induction heating coil, inner waste feed means, and double shutter capable of sealing the interior of the intake and discharge port An induction heating pyrolysis furnace, characterized in that an electromagnetic induction vessel provided with a vent for reducing the internal atmospheric pressure is rotatably provided.   The induction heating pyrolysis furnace according to claim 1, wherein the waste feeding means is a large number of wings erected on the inner wall of the electromagnetic induction container.   The induction heating pyrolysis furnace according to claim 1, wherein the waste feeding means is a corkscrew-like wing erected on the inner wall of the electromagnetic induction container.   The induction heating pyrolysis furnace according to claim 1, wherein the waste feeding means is a corkscrew-shaped groove formed on an inner wall of the electromagnetic induction container.   The induction heating type pyrolysis furnace according to claim 1, wherein the waste feeding means is a screw conveyor provided in an electromagnetic induction container.   The induction heating pyrolysis furnace according to claim 1, wherein the electromagnetic induction container has a double wall surface.   The induction heating type pyrolysis furnace according to claim 6, wherein the pressure between the double walls is kept low.   The induction heating pyrolysis furnace according to claim 1, wherein the periphery of the electromagnetic induction container is covered with a heat insulating material.   The induction heating pyrolysis furnace according to claim 1, wherein an explosion-proof safety valve is provided in the electromagnetic induction container.   The induction heating pyrolysis furnace according to claim 1, further comprising a control device that controls opening and closing of the double shutter.   The induction heating type pyrolysis furnace according to claim 1, which is housed in a casing that blocks electromagnetic waves.

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