JP2019052234A - Gasification furnace and method for gasifying organic material - Google Patents

Abstract

To provide the gasification furnace and the method for gasifying the organic material, that have a simple and economical structure, and can prevent generation of clinkers, bridges and rat holes to enhance treatment efficiency of a processed product, are safe for work, and can realize low running costs.SOLUTION: The gasification furnace according to the present invention comprises a processed product charging chamber, and a gasification unit and an ashing unit having a combustion space for burning the processed product, wherein the combustion space is provided with a press member for pressing the processed product charged into the combustion space from a processed product charging chamber with an arbitrary pressure, the press member includes a press plate for pressing the processed product and a press plate support part for supporting the press plate, and the press plate is provided with a plurality of through open holes in a direction in which the processed product is pressed.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a gasification furnace used for gasification or volume reduction of organic matter, and a method for gasification of organic matter.

  In recent years, gasification of organic substances has attracted attention with the technology of waste heat treatment system and the application of biogas. In the gasification furnace in operation, regardless of the shape of the object to be processed, there is a phenomenon in which the objects to be processed form an arch structure in the gasification part and the ashing part as the gasification (volume reduction) proceeds. Easy to get up. Such a phenomenon is called a bridge, and a phenomenon in which thermal decomposition proceeds in one direction and a tunnel-like space like a mole nest is formed is called a rathole. The larger the hole diameter of the bridge phenomenon or the rat hole phenomenon, the larger the space volume, so that flammable combustion is likely to occur in this part. The combustion further expands the holes, making it easier for air to flow in, resulting in a vicious circle in which flammable combustion is further expanded. Flammable combustion in the gasification section inhibits gasification, and the bridge in the ashing section cannot produce clinker or discharge ash due to high-temperature combustion. This is a fatal phenomenon in the furnace. There is a need to minimize these phenomena.

Various inventions for destroying bridges and ratholes have been proposed. Patent Documents 1 and 2 disclose an apparatus that breaks a bridge or the like by stirring powder particles in a hopper with a rotating claw or a screw blade. Patent Document 3 describes a method in which a plurality of long collapsing members attached to a support frame are inserted into an agglomerated granular material by an air cylinder or the like to collide the bridge. Patent Document 4 proposes a method of breaking the bridge by making the corn portion of the hopper into a cloth and pressing the cloth cone portion from the outside. In Patent Document 5, the same corn-shaped flexible container is provided inside the corn-shaped rigid container of the hopper, and the compressed fluid is supplied to the airtight gap formed between the rigid container and the flexible container to place the flexible container inside. Devices have been proposed that inflate to break the bridge. Furthermore, Patent Documents 6 and 7 propose a device that breaks a bridge or a rathole by vibrating a hopper with a vibrator.
However, any of the apparatuses and systems described in Patent Documents 1 to 7 has a complicated structure of the hopper itself, and if the hopper is replaced, a large investment is required.

JP 2002-2873 A JP 2000-53188 A JP-A-6-321291 Japanese Utility Model Publication No. 7-19193 JP 2001-39489 A JP 7-76392 A Japanese Utility Model Publication No. 9-301486 JP 2007-72275 A

The inventor of the present application has proposed an invention according to Patent Document 8 regarding a pyrolysis furnace.
That is, the invention according to Patent Document 8 is a pyrolysis furnace provided with a fuel input unit, a combustion unit, an ash discharge unit, and a drop lid, and the fuel input unit receives organic waste input from a fuel inlet. The fuel storage space to be stored, the fuel input port for supplying the organic waste stored in the fuel storage space to the fuel unit, and the organic waste input to the fuel unit by opening and closing the fuel input port The combustion section has a combustion space for storing organic waste introduced from a fuel inlet, an air supply pipe to which air is supplied from a blower, and an atmospheric temperature of the combustion space. Combustion means comprising a heater for heating the air supplied to the air supply pipe until the operating temperature is reached, an air supply pipe for supplying the air heated by the heater to the combustion space, and organically decomposed organic matter in the combustion space Equipped with a stirrer for stirring waste Furthermore, the drop lid reduces the volume of organic waste in the combustion space by pressing the organic waste put into the combustion space with its own weight, and the ash discharge part is organic in the combustion space. There is an ash discharge port for discharging the ash generated by pyrolysis of waste to the outside of the furnace, and a rotor with a plurality of blades fixed radially to the shaft. The rotary valve is provided between adjacent blades and sent to the ash discharge port. In the present invention, a low-cost pyrolysis furnace is realized.

  However, as a result of operation verification, it was found that a greater pressure than expected was required to suppress (break) the bridge and rathole. That is, if it becomes the “self-weight” of the drop lid, it will literally continue to be pressed by the pressure due to the weight of the drop lid itself. As a result, as shown in FIG. 6 (a), the internal pressure on the object to be treated (gasification object) Is too large, there is no appropriate internal space, the passage of the air supplied from the air supply ports 611 to 616 of the air supply pipe 61 is not secured, and on the contrary, it is found that the progress of thermal decomposition (partial combustion) is hindered. .

Further, it has been found that when the pressing portion adopts a flat surface, the thermal decomposition does not easily proceed in the vicinity of the contact surface with the object to be processed. As shown in FIG. 6B, this means that if the pressing surface is flat, the air supplied from the air supply ports 611 to 616 of the air supply pipe 61 even if there is an appropriate space inside the workpiece. It is considered that the path is blocked by the pressing surface and an extreme lack of oxygen occurs due to the close contact state. In the first place, the thermal decomposition treatment is continuation of partial combustion due to a low oxygen concentration, and an appropriate internal space is required for the object to be treated. For this reason, the contact surface of the object to be processed of the pressing portion is not a flat surface, and a plurality of through holes are necessary on the surface. It was also found that thermal decomposition proceeds.
Furthermore, after applying pressure enough to suppress ratholes and bridges, the pressure was reduced to such an extent that a moderate internal space can be maintained, and it was also found that this was significant in the progress of thermal decomposition of the workpiece.

  Furthermore, when the workpiece is recharged during operation, it is necessary to scavenge the workpiece storage space with outside air or the like before opening the charging lid of the workpiece storage space as a safety measure. In other words, after the workpiece is charged, the charging lid is closed and the shutter is opened so that the workpiece in the charging box is charged into the gasification chamber. When the shutter is opened, there is no partition between the combustion space and the charging box. Thus, the treated product storage space becomes a part of the gasification chamber, and the combustible gas in the combustion space flows in. Even if the shutter is closed, there is a possibility that combustible gas may remain in the processing object storage space. If the charging lid is opened in this state, there is a problem in safety of workers. Next, when the workpiece is put into the workpiece storage space and the closing lid is closed, the workpiece storage space is filled with fresh air (a large amount of oxygen), so low oxygen concentration gas (exhaust gas, etc.) There is a danger of explosion if the shutter is not opened after the replacement.

  Therefore, the present invention is a gasification furnace that has a simple and economical structure, prevents the occurrence of bridges and ratholes, has no danger of explosion in work, and is safe and has high gasification efficiency (volume reduction efficiency). The purpose is to provide.

  A gasification furnace according to the present invention includes an input chamber for an object to be processed and a gasification section and an ashing section having a combustion space for burning the object to be processed, and the combustion space includes a combustion space from the object input chamber. A pressing member that presses the workpiece to be processed with an arbitrary pressure, and the pressing member includes a pressing plate that presses the workpiece and a pressing plate support that supports the pressing plate. A plurality of through holes are provided in the direction in which the workpiece is pressed. Note that if the plurality of through holes are arranged in a lattice shape or a honeycomb shape, air can be supplied to the entire workpiece to be processed, and thermal decomposition proceeds.

  In addition, the combustion space of the gasification furnace and the workpiece input chamber according to the present invention are adjacent to each other, and an openable / closable shutter is provided on the adjacent surface to chamber each chamber in a predetermined state. Is equipped with an exhaust pipe for exhausting indoor air and an air supply pipe for supplying outside air and a low oxygen concentration gas (exhaust gas, etc.) for scavenging the room, An extrusion member to be extruded is provided.

The gasification furnace has a plurality of air supply ports, and the plurality of air intake ports are arranged in a surrounding shape along the furnace wall in a plan view of the gasification furnace, and are adjusted to a plurality of regions of the combustion space. More preferably, when air is distributed and supplied to a plurality of regions of the gasification furnace, gasification can be further promoted and gasification (volume reduction) efficiency can be improved.
As for the ashing section, if a plurality of branch pipes are provided with a tubular rotor that is radially fixed to the shaft, and an appropriate amount of air is supplied to the plurality of branch pipes, the burned carbides are spread over a wide range of the ashing section. Surface combustion (extra-combustion) is activated, and surface combustion affects the gasification part, leading to further thermal decomposition of the workpiece.

Furthermore, the method of gasifying organic matter according to the present invention includes a combustion space and a subject in a gasification furnace comprising a workpiece input chamber, and a combustion space having a gasification part and an ashing part for burning the object to be treated. The processing object input chamber is adjacent to each other, and an openable / closable shutter is provided on the adjacent surface to chamber each chamber in a predetermined state. With the shutter closed, the air in the processing object input chamber is replaced. When the shutter is opened, the thrown object to be processed is pushed out into the combustion space by the pushing member to burn the object to be processed.
Further, in the organic gasification method according to the present invention, the combustion space having the gasification section and the ashing section has a plurality of air supply ports, and the plurality of air intake ports are the furnace walls in a plan view of the gasification furnace. It is possible to supply a regulated amount of air to multiple areas of the combustion space, and promote gasification and reduce volume by distributing and supplying air to multiple areas of the gasification furnace. It is characterized by increasing efficiency.
Further, the organic material gasification method according to the present invention activates surface combustion in the ashing section by supplying an appropriate amount of air to the plurality of branch pipes fixed to the tubular rotor and rotating the rotor. Further, the present invention is characterized in that ash refinement is realized by promoting ashing of carbides in the ashing part and promoting decarbonization of ash.

  In a gasification furnace comprising a workpiece input chamber, a combustion space gasification section, and an ashing section, the combustion space and the workpiece input chamber are adjacent to each other, and each chamber is chambered in a predetermined state on an adjacent surface. An openable / closable shutter is provided, and the air in the processing object input chamber is replaced with the shutter closed, and when the shutter is opened, the input processed object is pushed out by the extrusion member. Thus, the object to be processed can be burned by being pushed out into the combustion space, so that the danger of explosion can be avoided and safety for the operator and the environment is ensured.

The ashing unit includes a tubular rotor in which a plurality of branch pipes are radially fixed to a shaft, and an appropriate amount of air is supplied to a plurality of air supply ports formed in the plurality of branch pipes and the tubular rotor. By rotating, it is possible to promote decarbonization and refinement of ash having a high carbon content. Furthermore, ash refinement is a volume reduction of ash, which reduces the volume of residue and is reflected in reducing the burden on the final disposal site.
Furthermore, the contact surface of the object to be processed on the pressing plate is not a flat surface. If a plurality of through holes are provided in the surface, thermal decomposition also proceeds near the contact surface of the object to be processed, and further, rat holes and bridges are suppressed. After applying sufficient pressure, reducing the pressure to such an extent that an appropriate internal space can be maintained has an effect on the progress of thermal decomposition of the workpiece.

It is a conceptual diagram which shows the basic composition of the gasification furnace which concerns on this invention. The figure which shows arrangement | positioning and structure of the to-be-processed object input chamber 3 and the gasification part 1 of a combustion space which adjoin each other, and shows a mode that the to-be-processed object I is injected into the to-be-processed object input chamber 3, and is extruded to the combustion space 10. It is. It is a figure which shows typically the mode of the purge of a to-be-processed object input chamber. It is a figure which shows typically the structure of a press member, and the press state to a to-be-processed object. It is a figure which shows typically the aspect of the stirring apparatus which served as the diffuser tube, and an aeration and stirring. It is a figure which shows typically the problem on the structure of the conventional press member.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In each figure, the same number is attached | subjected to the same part, and the overlapping description is abbreviate | omitted. It should also be noted that the drawings may be exaggerated to understand the present invention and are not necessarily shown to scale. In addition, this invention is not limited to the Example shown below.

  This will be described in detail with reference to the drawings of the first embodiment. FIG. 1 is a conceptual diagram showing a basic configuration of a gasification furnace 100 of the present invention.

  First, the basic configuration of the gasification furnace 100 of the present invention will be described. Referring to FIG. 1, a gasification furnace 100 generally includes a gasification unit 1 and an ashing unit 2 having a combustion space 10 for gasifying and ashing a workpiece, and a workpiece input chamber 3. In Example 1, the gasification part 1 is located in the center part of the combustion space of a cylindrical body, and the ashing part 2 is located in the lower part. The gasification furnace is adjacent to the combustion space (gasification section / ashing section) 10 on a predetermined side surface of the workpiece input chamber 3, and the open / close shutter 40 that chambers each chamber in a predetermined state on the adjacent surface. Is provided.

  The combustion space 10 includes a pressing member 13 including a pressing plate support 131 and a pressing plate 130 that moves up and down by the pressing plate support 131 with respect to the gasification unit 1. The pressing member 13 is actuated by an air cylinder so as to press the object to be processed, which is input from the object input chamber 3 into the combustion space 10 with an arbitrary pressure. As will be described later, the pressing plate 130 is provided with a plurality of through holes in the direction in which the workpiece is pressed.

The combustion space 10 is supplied with a gasification unit 1 that thermally decomposes the workpiece I to generate gas, an ashing unit 2 that converts carbide into ash, and an air supply pipe 11 that supplies air from the blower F. It is generated in the process of thermally decomposing the workpiece I and a supply mechanism comprising a heater H for heating the heated air and an air supply pipe 11 (described later in FIG. 4) for supplying the heated air into the combustion space 10. And a gas pipe 14 for sending gas to a combustor (not shown). The air supply pipe 11 is preferably formed in an enclosure shape along the furnace wall in a plan view of the gasification furnace 100, and hot air is ejected from the air supply holes 111 to 116 of the air supply pipe 11 toward the inside. However, the hot air is for ignition and may be at room temperature during operation.
Note that control of the supply of air to the combustion space 10 is important. Although the supply amount varies slightly depending on the application, the criteria for determining the supply amount are the oxygen concentration of the combustible gas discharged from the combustion space 10 and the temperature of the gas, and the temperature of the gasification section (thermal reaction layer) in the furnace. Can be. That is, it is good to program from experience values based on the data obtained from the increase / decrease in the amount of supplied air.

  In the gasification part 1 of the combustion space 10, partial combustion of the generated gas obtained by heating is performed. By partial combustion, tars composed of aromatics such as toluene and naphthalene, higher paraffins, higher olefins, higher naphthenes, and the like are decomposed to obtain a combustible gas containing hydrogen, carbon monoxide, methane, and the like. The composition of the combustible gas varies depending on the composition of the object to be treated, but is generally a mixed gas with a hydrocarbon system mainly composed of carbon monoxide.

  Although not shown in the figure, the combustor to which the gas generated in the gasification furnace 100 is supplied has another heat source inside, receives the gas from the gas pipe 14 of the gasification furnace 100, and self-combusts them. .

  The ashing unit 2 includes a stirring tube main body 51 for decarbonizing and refining the ash generated by ashing the workpiece I, and an ash outlet (not shown). An ash discharge screw conveyor 60 is provided at the ash discharge port.

  The workpiece input chamber 3 accommodates a workpiece input port 31 for loading the workpiece I at the top, a workpiece input lid 32 for opening and closing the workpiece input port 31, and the workpiece I. A workpiece storage space 30 and a push member 35 that pushes the workpiece I into the combustion space 10 are provided. In addition, the workpiece input chamber 3 includes an exhaust pipe 33 for exhausting the indoor air and an air supply pipe 34 for supplying outside air and air with a low oxygen concentration in order to replace the indoor air.

Please refer to FIG. FIG. 2 shows the arrangement and structure of the workpiece input chamber 3 and the combustion space (gasification section / ashing section) 10 adjacent to each other, and the workpiece I is input into the workpiece input chamber 3 and combusted. FIG. 3 is a diagram showing a state where the space 10 is pushed out. As described above, the workpiece input chamber 3 includes the workpiece input port 31 for loading the workpiece I at the top, the workpiece input lid 32 for opening and closing the workpiece input port 31, and the workpiece. A processing object storage space 30 for storing I and an extrusion member 35 for extruding the processing object I to the combustion space (gasification unit / ashing unit) 10 are provided. The combustion space 10 and the workpiece input chamber 3 are adjacent to each other on a predetermined side surface of the combustion space, and an openable / closable shutter 40 is provided on the adjacent surface to chamber each chamber in a predetermined state.
FIG. 2A shows a state in which the shutter 40 is closed and the workpiece storage space 30 is empty. FIG. 2B shows a state where the workpiece input lid 32 is opened, the workpiece input port 31 is opened, and the workpiece I is charged into the workpiece storage space 30. FIG. 2C shows a state in which, after the desired workpiece I is charged, the workpiece input lid 32 is closed and the workpiece input port 31 is closed. In this state, the shutter 40 is operated upward by the air cylinder, and the partition between the combustion space 10 and the workpiece input chamber 3 is eliminated (FIG. 2D). In this state, the pushing member 35 operates to push the workpiece I into the combustion space 10 of the gasification chamber 1 (FIG. 2 (e)), and the workpiece I is accommodated in the combustion space 10. Thereafter, the pushing member 35 returns to the original position (FIG. 2 (f)).

As shown in FIGS. 2A to 2F, after the workpiece I is charged, the workpiece charging lid 32 is closed and the shutter 40 is opened to move the workpiece I in the workpiece charging section 3 to the combustion space. When the shutter 40 is opened, there is no partition between the combustion space 10 and the workpiece input portion 3, and the space of the workpiece input portion 3 becomes a part of the combustion space 10. You will understand that. The workpiece input unit 3 is structurally filled with fresh air (a large amount of oxygen) because outside air flows in when the workpiece is input. If the shutter 40 is opened in this state, there is a risk of explosion.
Therefore, it is necessary to replace (purge) the air inside the workpiece input unit 3, and FIG. 3 schematically shows the purge mechanism. As described above, the workpiece input chamber 3 includes the exhaust pipe 33 for exhausting the indoor air and the air supply pipe 34 for supplying outside air and low oxygen concentration air in order to exchange the indoor air.

FIG. 3A is the same as the state shown in FIG. FIG. 3 (a) shows that if the shutter 40 is opened during operation, air containing a combustible gas such as carbon monoxide generated in the combustion space (gasification section / ashing section) 10 is input to the object to be processed. It flows into the part 3.
When the shutter 40 is closed, the workpiece input unit 3 is filled with a combustible gas such as carbon monoxide ((FIG. 3B). Before opening the material input lid, air containing a combustible gas such as carbon monoxide is discharged into the combustion space 10 through the exhaust pipe 33, while outside air is discharged into the workpiece input unit 3 through the air supply pipe 34. In other words, the workpiece input lid 32 is opened in a state where the inside of the workpiece input unit 3 is filled with the outside air (FIG. 3C), and the workpiece I (FIG. 3D) Even if the workpiece input lid 32 is opened in this state, the combustible gas such as carbon monoxide does not flow out to the atmosphere, and is safe for the operator.
Next, the workpiece input port 31 is closed and the outside air is discharged into the gasification chamber 1 through the exhaust pipe 33, while the low oxygen concentration air (exhaust gas) is supplied into the workpiece input unit 3 through the air supply pipe 34. (Fig. 3 (e)). At this time, it should be noted that the outside air is sent to the combustion space 1 of the gasification furnace over time while paying attention to the explosion.
Finally, the pushing member 35 operates to push the workpiece I into the combustion space 10 (FIG. 3 (f)), and the workpiece I is accommodated in the combustion space 10 and thermally decomposed.
In this way, the purge is repeated in the workpiece input unit 3 when the workpiece I is charged again.

  Please refer to FIG. FIG. 4 is a diagram schematically showing the structure of the pressing member 13 and the pressed state of the workpiece I. The pressing member 13 generally includes a pressing plate 130 that presses the workpiece I and a pressing plate support portion 131 that supports the pressing plate 130. The pressing plate 130 may be a structure including a plurality of through holes in the plate body, or may be a lattice-shaped frame body. Note that if the plurality of through holes are arranged in a lattice shape or a honeycomb shape, air can be supplied to the entire workpiece to be processed, and thermal decomposition proceeds.

The pressing plate 130 moves up and down from the ceiling of the cylindrical body of the gasification furnace 100 via the pressing plate support 131 by an air cylinder. In FIG. 4 (a), the pressure plate 130 is applied to the workpiece I so as to suppress the rat hole and the bridge. Thereafter, the pressure is reduced to such an extent that an appropriate internal space can be maintained. Then, when the pressing plate 130 is a structure having a plurality of through holes in the plate body, air supplied from the air supply holes 111 to 116 of the air supply pipe 11 is supplied to the entire internal space of the workpiece I. (FIG. 4B), which is significant in the progress of thermal decomposition of the untreated product.
In addition, it is necessary to know the re-input timing according to the volume reduction of the workpiece I in the gasification unit 1, but when the pressing plate 130 is lowered to a certain position, a sensor such as a switch works and the workpiece is processed. It is good to make it the re-input mode of the thing I.

  The air supply mechanism to the combustion space also serves as the air supply pipe 11 for supplying air from the blower F and the air from the burner blower (not shown) of the ignition gas burner H and the diffuser pipe in the ashing section. It consists of a stirring tube body 51 and a branch tube 52. Note that the ignition gas burner only supplies air at normal temperature only at the time of ignition. In the first embodiment, the supply pipe 11 may be disposed in a surrounding manner along the furnace wall in a plan view of the gasification furnace 100. Air supply holes 111, 112, 113, 114, 115, 116 formed by drilling small-diameter holes at the tip and side surfaces thereof are provided. The number of air supply holes is not limited, and a desired number of holes can be formed. The position of the hole should be obliquely below the pipe.

  Please refer to FIG. FIG. 5 is a diagram schematically showing a stirring device that also serves as an air diffuser and the state of air diffusion and stirring. As shown in FIG. 4, thermal decomposition proceeds in the gasification part 1 of the combustion space 10, the workpiece I is carbonized, and an uncarbonized layer and a thermal decomposition layer (layer thermally decomposed in the gasification part) are formed. Is formed. That is, the workpiece I in the uncarbonized layer is carbonized, and the carbide is collapsed and reduced in volume by the pressing of the pressing plate 130.

As described above, the workpiece I is carbonized by thermal decomposition and further proceeds to ashing, but the stirring member 50 is operated in order to promote ashing and to refine the ash by decarbonization. The stirring member 50 includes a stirring tube body 51 and a branch tube 52. The stirring tube main body 51 includes air supply holes 511, 512, 513, and 514 formed by drilling small-diameter holes on the side of the tube. The number of air supply holes is not limited, and a desired number of holes can be formed. Further, the tip of the branch pipe 52 is also opened, so that air can be supplied.
By rotating the stirring tube main body 50, the ashing part 2 can be stirred to promote low carbon ashing and volume reduction, and the generation of rat holes and bridges can be prevented.
In addition, if an appropriate amount of air is supplied from the air supply holes 511, 512, 513, and 514 of the stirrer main pipe 51 and the tip of the branch pipe 52 while rotating the stirrer main body 51, the burned carbide (covered object) In the treated product), surface combustion (external combustion) is activated in a wide range of the ashing part, and the surface combustion heat affects the thermal decomposition layer, which leads to further promotion of thermal decomposition of waste. It is advisable to periodically perform air pulses to prevent clogging of the air supply holes of the air supply pipe and the stirring pipe main body and to prevent bridging.

The ash is discharged through the ash discharge port when the ash discharge screw conveyor 60 rotates.
As described above, the object to be processed I is carbonized by pyrolysis in the gasification unit 1 in the combustion space 10 and becomes ash in the lower ashing (or alternate combustion) layer, but the ash content increases periodically as the operation progresses. Ashes must be discharged. The discharge timing is set by a sensor such as a switch that operates when the pressing plate 130 of the pressing member 13 does not descend to a predetermined position even if a certain operating time has elapsed, and enters a ash discharging mode to discharge a certain amount of ash. (Timer operation) is recommended.

  By repeating the above operation and maintaining the volume of the uncarbonized layer, stable operation (volume reduction) can be continuously performed.

  Although the preferred embodiments of the gasification furnace according to the present invention have been described above, it will be understood that various modifications can be made without departing from the technical scope of the present invention.

  The gasification furnace of the present invention can be used as a burner for an existing boiler if it is used as a part of a fuel gas generator as a waste heat treatment system. For example, baths, hotels, guest houses, welfare facilities, nursing homes Hot water supply and heating in nursing facilities, hot water supply and heating in agricultural and forestry facilities such as greenhouses and greenhouses, hot water supply and heating in livestock facilities such as pig farms and poultry houses, hot water supply and heating in general factories, and in winter snow and snowfall areas It can also be used for snow melting facilities. Further, in combination with a heat exchanger, it can be used in a wide range of industrial fields such as power generation and drying. Depending on the purpose of use, the word “processed object” adopted in this specification will be “processed object” in the waste heat treatment system and “fuel” in power generation and heat utilization.

100 Gasifier
1 Gasification Department
10 Combustion space (gasification part and ashing part)
11 Air supply pipes 111 to 116 Air supply holes
13 Pressing member 130 Pressing plate 131 Pressing plate support
14 Gas pipe
2 Ashing part
3 Workpiece input part
30 Untreated volume storage space
31 To-be-processed reduced material inlet
32 To-be-processed reduced material input lid (input lid)
33 Exhaust pipe
34 Air supply pipe
35 Extruded member
40 Shutter
50 Stirring member
51 Stirring tube body
52 Branch pipes 511 to 514
60 Screw conveyor for ash discharge
F Blower
H Gas burner for ignition
I Workpiece
G LP gas cylinder
S Air cylinder

Claims (8)

A gasification furnace comprising a workpiece input chamber, and a combustion space having a gasification section and an ashing section for burning the workpiece,
The combustion space includes a pressing member that presses the waste that has been input into the combustion space from the workpiece input chamber with an arbitrary pressure,
The pressing member includes a pressing plate that presses the workpiece and a pressing plate support that supports the pressing plate, and the pressing plate is provided with a plurality of through holes in a direction of pressing the workpiece. A gasification furnace characterized by that.   The gasifier according to claim 1, wherein the plurality of through holes are arranged in a lattice shape or a honeycomb shape. The combustion space is adjacent to the workpiece input chamber on an arbitrary side surface, and an openable / closable shutter is provided on the adjacent surface to chamber each chamber in a predetermined state.
The workpiece input chamber includes an exhaust pipe for exhausting the air in the non-processed material input chamber and an air supply pipe for supplying outside air or a low oxygen concentration gas in order to replace the air in the non-processed material input chamber. The gasification furnace according to claim 1, further comprising an extruding member that extrudes the processed object into the combustion space.   The combustion space having the gasification section and the ashing section has a plurality of air supply ports, and the plurality of intake ports are disposed in a surrounding shape along a furnace wall in a plan view of the gasification furnace, and the combustion The gasification furnace according to any one of claims 1 to 3, wherein an adjusted amount of air can be supplied to a plurality of regions of the space.   6. The ashing section includes a tubular rotor in which a plurality of branch pipes are radially fixed to a shaft, and an appropriate amount of air is supplied to the plurality of branch pipes. The gasifier described in the paragraph.   In a gasification furnace comprising a workpiece input chamber, and a combustion space having a gasification section for burning the workpiece and an ashing section, the combustion space and the workpiece input chamber are adjacent to each other on an adjacent surface. Is provided with an openable / closable shutter that chambers each chamber in a predetermined state. When the shutter is closed, the air in the chamber of the workpiece input chamber is replaced and the shutter is opened. A method of gasifying an organic substance, wherein the charged object to be processed is extruded into the combustion space by the pushing member and the object to be processed is combusted. The combustion space having the gasification part and the ashing part has a plurality of air inlets, and the plurality of air inlets are disposed in an enclosed shape along a furnace wall in a plan view of the gasification furnace, Adjusted air volume can be supplied to multiple areas of the combustion space,
The method of gasifying an organic substance according to claim 6, wherein the air is dispersed and supplied to the plurality of regions of the gasification furnace to promote gasification and increase the volume reduction efficiency.   The ashing unit includes a tubular rotor in which a plurality of branch pipes are radially fixed to a shaft, and an appropriate amount of air is supplied to the plurality of branch pipes so that the rotor rotates, so that 8. The gasification of organic matter according to claim 6 or 7, wherein the surface combustion of the ash is activated, and the ashing of the carbide in the ashing part is promoted and the ash is refined by promoting the decarbonization of the ash. the method of.

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