JP2004115576A - Method for producing dry distillation gas and system for producing dry distillation gas - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide miniaturization of a dry distillation gas producer, to facilitate the use for users who are not experts and to stably and continuously produce the dry distillation gas of the same quality. <P>SOLUTION: A solid fuel is continuously or intermittently charged into a dry distillation gas producer 1 and high-temperature air for dry distillation is continuously fed thereinto to carbonize the solid fuel by dry distillation. The weight of the solid fuel in the dry distillation gas producer is measured with a weight sensor 4 while producing the dry distillation gas by pyrolysis. Thereby, automatic control over the amount of the charged solid fuel into the dry distillation gas producer and the amount of the delivered combustion residues from a fire grate 12 in the dry distillation gas producer is performed on the basis of the measured weight. The temperature of each zone of a combustion zone 13, the dry distillation zone 14, a predrying zone 15 and a dry distillation gas zone 16 in the producer is measured with a temperature sensor. The automatic control over the amount of the charged solid fuel and the amount of the delivered combustion residues from the fire grate in the dry distillation gas producer is also performed on the basis of the measured temperature. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a carbonized gas generation method and a carbonized gas generation system for carbonizing solid fuels such as garbage and sludge, and also wastes including waste plastics, papers, wood, and the like to generate useful carbonized gas.
[0002]
[Prior art]
Patent Document 1 (Japanese Patent Application Laid-Open No. 2002-38165) discloses a wet fuel gasification system and a gasification method mainly for wet waste as a solid fuel. This wet fuel gasification system includes a drying device for heating and drying wet fuel (waste), a steam heating device for heating low-temperature steam to high-temperature steam of 600 ° C. or higher, and a dry fuel dried by the drying device. It consists of a gasification furnace or pyrolysis furnace that thermally decomposes, and a reformer that reforms the pyrolysis gas generated here into high-temperature crude gas with high-temperature steam for reforming from a steam heater. The wet fuel is heated and dried using the heat of the high-temperature crude gas reformed by the reformer, and the steam heater heats the odorous steam derived from the dryer to generate high-temperature steam for reforming It has become.
[0003]
Patent Document 2 (Japanese Patent Application Laid-Open No. 2000-158885) discloses a carbonization furnace intended only for carbonizing waste. In this carbonization furnace, a heater is installed between the carbonization chamber and the heating chamber to carbonize the waste in the carbonization chamber in a batch manner. The carbonization degree of the waste in the carbonization chamber is determined based on the measured values before and after the time, and based on the fluctuation amount of the measured values before and after the time.
[0004]
[Patent Document 1]
JP-A-2002-38165 (page 6, FIG. 1)
[Patent Document 2]
JP-A-2000-158885 (page 3, FIG. 1)
[0005]
[Problems to be solved by the invention]
However, the wet fuel gasification system described in Patent Literature 1 requires a separate drying device capable of separating odorous steam as a pretreatment device in addition to the gasification furnace or the pyrolysis furnace, which complicates the processing. Therefore, the automatic control is difficult, the system scale is large and the system is expensive, and the heat loss is unavoidable as a whole.
[0006]
The carbonization furnace described in Patent Literature 2 is intended only for carbonization of waste, and only exhausts steam generated in the carbonization chamber from an exhaust pipe. Although the weight of the carbonization furnace is measured by the load cell, the purpose is to determine the degree of carbonization of the waste in the carbonization chamber.
[0007]
By the way, it is not intended for large-scale treatment facilities and final treatment facilities that treat large amounts of waste, but for small-scale facilities that treat relatively small amounts of waste. In the case of a continuous generation type carbonization gas generating system for generating, there are important issues such as miniaturization of the carbonization gas generation furnace, ease of use for non-expert users, and stable continuous generation of carbonization gas of the same quality.
An object of the present invention is to provide a carbonized gas generation method and a carbonized gas generation system that can achieve such a problem.
[0008]
[Means for Solving the Problems]
The carbonization gas generating method of the present invention is characterized in that a solid fuel is continuously or intermittently charged into a carbonization gas generating furnace, and a high-temperature gas for carbonization is continuously fed to carbonize by carbonization and carbonization by pyrolysis. While generating gas, the weight of the solid fuel in the carbonization gas generating furnace was measured with a weight sensor, and the amount of solid fuel injected into the carbonization gas generating furnace and the residual combustion from the grate in the carbonization gas generating furnace were measured. Automatically controls the amount of material discharged based on the measured weight.
[0009]
That is, in the present invention, in order to reduce the size of the carbonization gas generating furnace and to continuously generate carbonization gas, the solid fuel is continuously or intermittently charged, and the high-temperature gas for carbonization is continuously supplied to perform the carbonization. Dry distillation with hot gas for use. Since the conditions inside the furnace change as the carbonization (combustion) progresses, the change is detected by measuring the weight of the solid fuel in the furnace with a weight sensor, and the amount of the solid fuel injected into the carbonization gas generating furnace is determined. By automatically controlling the amount of combustion residue (carbide, ash, etc.) from the grate in the carbonization gas generating furnace based on the measured weight, the furnace can be maintained under constant combustion and carbonization conditions, Achieve stable and continuous generation of carbonized gas.
[0010]
If the amount of the high-temperature gas for carbonization to be introduced into the carbonization gas generating furnace is also automatically controlled based on the measured weight, the combustion and carbonization conditions in the furnace can be more reliably maintained.
[0011]
The weight of the solid fuel in the furnace can be measured by a weight sensor outside the furnace together with all or a part of the carbonization gas generating furnace.
[0012]
In the furnace, a combustion zone, a carbonization zone, a preliminary drying zone, and a carbonization gas zone are generated from below, so the temperature of each zone is measured with a temperature sensor, and the amount of solid fuel charged and the combustion residue from the grate are measured. The automatic control of the amount of water discharged from the furnace according to the measured temperature enables precise control of the combustion and carbonization conditions in the furnace.
[0013]
The amount of the high-temperature gas for carbonization into the carbonization gas generating furnace can also be automatically controlled based on the measured temperature.
[0014]
By starting hot distillation by feeding hot air into the dry distillation gas generating furnace, the operation of the dry distillation gas generating furnace can be efficiently started in a short time.
[0015]
A dry distillation gas generating system according to the present invention includes a dry distillation gas generating furnace that carbonizes a solid fuel by dry distillation to generate a dry distillation gas by pyrolysis, and a high temperature gas for dry distillation that feeds a high temperature gas for dry distillation into the dry distillation gas generating furnace. Supply means; solid fuel supply means for continuously or intermittently charging solid fuel into the carbonization gas generating furnace; combustion residue sending means for transmitting combustion residues from a grate in the carbonization gas generating furnace; It comprises a weight sensor for measuring the weight of the solid fuel in the gas generating furnace, and a control device for automatically controlling the solid fuel supply means and the combustion residue delivery means based on the measured weight.
[0016]
Preferably, the following form is used.
The control device also automatically controls the hot gas supply means for carbonization based on the measured weight.
[0017]
The weight sensor measures the weight of the solid fuel together with all or a part of the carbonization gas generating furnace outside the furnace.
[0018]
The carbonization gas generating furnace has an inner cylinder for receiving the weight of the solid fuel in an outer cylinder made of a heat insulating material, and the weight sensor measures the weight of the solid fuel together with the inner cylinder for the fuel. In this case, the grate is arranged in the inner cylinder for fuel reception.
[0019]
A temperature sensor for measuring the temperature of each of the combustion zone, the carbonization zone, the preliminary drying zone, and the carbonization gas zone in the carbonization gas generating furnace is provided, and the control device controls the solid fuel supply means and the combustion residue delivery means according to the measured temperature. Also automatically control.
[0020]
The control device automatically controls the high-temperature gas supply means for carbonization also according to the measured temperature.
[0021]
The apparatus is provided with a starting hot air generating means for feeding hot air into the carbonization gas generating furnace to start carbonization.
[0022]
A combustion residue discharging means for discharging the combustion residue discharged from the grate by the combustion residue discharging means to the outside of the furnace is provided.
[0023]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a dry distillation gas generation system A according to an embodiment of the present invention and an example of a gas reforming / refining system B for reforming and purifying the dry distillation gas from now on.
[0024]
The carbonization gas generation system A includes a vertical carbonization gas generation furnace 1, a crusher 2 for crushing solid fuel such as waste, and the crushed solid fuel is continuously or intermittently introduced into the carbonization gas generation furnace 1. The conveyor 2a, which is a solid fuel supply means, the hot air generator 3, which is a starting hot air generator for blowing hot air into the carbonized gas generating furnace 1 to start operation, and the weight of the carbonized gas generating furnace 1. The load cell 4 is a weight sensor for measuring the weight of the solid fuel therein together with the dry distillation gas generating furnace 1, and a control device (not shown) for performing various controls based on the measured weight.
[0025]
The gas reforming / refining system B introduces a pyrolysis gas (dry distillation gas) containing water vapor generated by pyrolysis in the dry distillation gas generating furnace 1 and removes tar and soot under high temperature (for example, 800 to 1000). C.), a reforming furnace 5 which is a gas reforming means for reforming by reacting with steam, a filter 6 for filtering a high-temperature (for example, about 800 ° C.) reformed gas from the reforming furnace 5, and a blower 7 From the low-temperature air (clean air) from the heat exchanger 8 to obtain a high-temperature air of, for example, about 600 ° C. by exchanging heat with the reformed gas after filtration, and cooling and washing the purified gas after heat exchange for purification. A cooling / refining device 9 as a gas, a part of the purified gas, and a portion of high-temperature air branched and supplied from the heat exchanger 8 to, for example, about 450 ° C., are mixed in the mixing unit 10a, and catalytic combustion is performed. High-temperature reforming air of about 1300 ° C. Consisting reforming hot air generating device 10 for blowing the reforming furnace 5 by.
[0026]
Most of the high-temperature air at about 600 ° C. from the heat exchanger 8 is sent from the lower side as high-temperature air for dry distillation into the dry distillation gas generating furnace 1 and is subjected to dry distillation of solid fuel. Is fed to the reforming high-temperature air generator 10 and supplied to the reforming furnace 5 as reforming high-temperature air that supplies heat and oxygen for reforming.
[0027]
A part of the purified gas purified by the cooling / refining device 9 is provided to the fuel in the reforming high-temperature air generator 11 as described above, but most of the purified gas is, for example, a fuel gas for the power generator 11. It is effectively used as such.
[0028]
The carbonization gas generating furnace 1 carbonizes the introduced fixed fuel at a relatively low temperature (about 300 to 600 ° C.) and in an amount of air that is insufficient for complete combustion, and carbonizes the pyrolysis gas. appear. The operation is started by blowing hot air from the hot air generator 3 into the carbonization gas generating furnace 1. After the start, the hot air generator 3 is turned off. The air is continuously fed into the dry distillation gas generating furnace 1 from the same supply port.
[0029]
At the lower part of the carbonization gas generating furnace 1, a porous or mesh-like grate 12 is horizontally installed. Above this grate 12, a combustion zone 13, a carbonization zone 14, a preliminary drying zone 15, a carbonization A gas zone 16 is formed. A temperature sensor 17 for measuring the temperature of each zone is installed on the peripheral wall of the carbonization gas generating furnace 1.
[0030]
An air supply chamber 18 is provided below the grate 12, that is, between the grate 12 and the bottom 1a of the carbonization gas generating furnace 1, and the hot air from the hot air generator 3 and the high-temperature air from the heat exchanger 8 are: It rises from the air supply chamber 18 through the grate 12. The temperature of the air supply chamber 18 is also measured by the temperature sensor 17.
[0031]
On the grate 12, a stirring rotor 19 rotated by a motor (not shown) is provided. The stirring rotor 19 also serves as a stirring means for stirring the solid fuel and a combustion residue sending means for sending (falling) combustion residues (carbides and ash) below the grate 12. Note that a vibrator may be used instead of the stirring rotor 19.
[0032]
A discharge rotor 20 rotated by the same motor as the stirring rotor 19 is provided on the bottom 1 a of the carbonization gas generating furnace 1, and the combustion residue dropped from the grate 12 is converted into a furnace by the rotation of the discharge rotor 20. It is discharged outside.
[0033]
The weight of the solid fuel in the carbonization gas generating furnace 1 is measured together with the carbonization gas generating furnace 1 by a load cell 4 outside the furnace, which is a weight sensor, and the measured weight signal is a measured temperature signal of each zone by the temperature sensor 17. Is input to the control device. The control device controls the amount of the solid fuel charged by the carry-in conveyor 2a based on the measured weight and the measured temperature and the amount of the solid fuel from the grate 12 by the stirring rotor 19 based on the measured weight and the measured temperature in order to set the inside of the carbonized gas generating furnace 1 to a constant combustion and carbonization condition. Controls the delivery of combustion residues. Specifically, the motor of the carry-in conveyor 2a and the motor of the stirring rotor 19 are automatically controlled according to a program. Furthermore, the control device also controls the amount of hot air from the heat exchanger 8. The control can be performed, for example, by controlling a high-temperature gas supply control valve 21 installed in a pipe from the heat exchanger 8.
[0034]
The carbonization gas generated by the thermal decomposition in the carbonization gas generating furnace 1 is sent from the upper part of the carbonization gas generating furnace 1 to the reforming furnace 5 through a pipe. When the solid fuel is wet waste, the dry distillation gas becomes a pyrolysis gas containing water vapor. However, although it contains water vapor, heat and oxygen are insufficient to reform tar and soot in the reforming furnace 5, so that the high-temperature air preheated by the heat exchanger 8 is cooled and refined. A part of the purified gas from the apparatus 9 is mixed as a fuel in a mixing section (mixer) 10a of a high-temperature air generating apparatus 10 for reforming, and is burned by a combustion catalyst in a catalytic combustion section 10b for reforming at about 1300 ° C. It is blown into the reforming furnace 5 as high-temperature air. The amount of air and the amount of purified gas are adjusted so that a sufficient amount of oxygen for reforming is provided in the reforming furnace 5 even when the fuel is burned.
[0035]
As shown in the schematic diagram of FIG. 2, the catalytic combustion unit 10b of the reforming high-temperature air generation device 10 uses a combustion catalyst having a noble metal such as platinum or palladium or a particle formed of an oxide thereof, having a honeycomb structure in cross section. Channels carrying the combustion catalyst and channels not carrying the catalyst are arranged alternately, and a pipe structure is formed in which the temperature is averaged by exchanging heat with the gas passing through the channel not carrying the combustion reaction heat generated in the carrying channel. I have. Since the reforming high-temperature air generator 10 has a small pipe shape as a whole including the mixing section 10a, it can be provided inside the reforming furnace 5, but may be provided outside thereof.
[0036]
In the middle of the reforming furnace 5, a heat-resistant material laminate 5 a is formed by laminating a heat-resistant material such as spherical ceramics so as to allow ventilation, and a pyrolysis gas flowing into the reforming furnace 5 and a temperature higher than that. The high-temperature air for reforming is dispersed and passed through the myriad of fine channels of the heat-resistant material laminate 5a, and effectively mixes the heat and oxygen of the high-temperature reforming air with water vapor. For this reason, the steam reforming reaction between the hydrocarbon in the pyrolysis gas and the steam proceeds effectively when passing through the fine flow path, and the reaction in a short time is efficiently performed. At the same time, in addition to having a heat storage function, the heat-resistant material laminate 5a has a purifying function of trapping tar and soot in the pyrolysis gas to promote reforming and purifying the gas.
[0037]
The reformed gas thus reformed in the reforming furnace 5 is filtered (to remove dust and the like) by the filter 6, and then cooled and washed by the cooling / refining device 9, so that sulfur, chlorine and dust are removed. And purified gas from which harmful substances such as heavy metals and the like have been removed.
[0038]
In the reforming high-temperature air generator 10, a part of the purified gas and the clean air preheated in the heat exchanger 8 are mixed and burned by the combustion catalyst. It is clean and does not cause accumulation of harmful substances and the like in the reforming high-temperature air generator 10. It goes without saying that combustion may be performed without preheating in the heat exchanger 8. As for the high-temperature air for dry distillation supplied to the dry distillation gas generating furnace 1, high-temperature air may be introduced from another system in addition to the high-temperature air preheated by the heat exchanger 8.
[0039]
FIG. 3 shows a modification of the gas reforming / refining system B. In this example, only the purified gas is burned in the catalytic combustion section 10b of the reforming high-temperature air generator 10 and heat exchange between the combustion reaction heat and the heating air from the heat exchanger 8 is performed. The purified air thus obtained is further heated by using the heat of combustion reaction of the purified gas to obtain high-temperature reforming air.
[0040]
In both cases of the gas reforming / refining system shown in FIG. 1 and the gas reforming / refining system shown in FIG. 3, when the wet waste is carbonized in the carbonization gas generating furnace 1, the pyrolysis gas generated at that time. The steam itself contains a sufficient amount of steam to be used in the next reforming step, and there is no need to separate the steam from the steam, and the heat and oxygen required to react with the steam are generated by the combustion reaction heat of the purified gas. From the viewpoint that it is only necessary to replenish from clean high-temperature air heated in the above, a simplified high-temperature steam generator for generating high-temperature steam for reforming and a drying device for separating odorous steam are unnecessary. System.
[0041]
4 and 5 show specific examples of the system shown in FIG. Although each part is not specifically described, it can be understood from these figures that the whole system is a small-scale system including the carbonization gas generation system A according to the present invention.
[0042]
6 and 7 show specific examples of the dry distillation gas generating furnace 1. FIG. In this dry distillation gas generating furnace 1, a vertically long cylindrical furnace body 1b is made of a metal material and a heat insulating material, and the inner surface thereof is coated with an ultra-high temperature heat-resistant paint having a heat-resistant temperature of about 1500 ° C., for example. The furnace body 1b is installed on a frame 22, and the frame 22 is also supported on a base 24 by supporting legs 23. The weight of the entire carbonization gas generating furnace 1 is reduced by the load cells 4 via the supporting legs 23. It is supposed to take.
[0043]
The grate 12 is installed horizontally in the furnace main body 1b. The stirring rotor 19 on the grate 12 and the discharge rotor 20 on the furnace bottom 1 a are, for example, plate-like blades fixed to the same rotor shaft 25, and are simultaneously rotated by a motor 26 fixed to the frame 22. Is done. FIGS. 8, 9 and 10 show planes of an example of the grate 12, the stirring rotor 19 and the discharge rotor 20, respectively. The rotor shaft 25 is insulated and connected to a transmission shaft 28 that transmits the rotation of the motor 26 by a coupling 27 outside the furnace with a heat insulating material interposed therebetween. The rotor shaft 25 is supported by a bearing using heat-resistant packing.
[0044]
FIG. 11 shows another specific example of the carbonization gas generating furnace 1. In this dry distillation gas generating furnace 1, a bottomed fuel receiving inner cylinder 29 is disposed separately from a furnace body 1b serving as an outer cylinder, and a grate 12 is installed in the inner cylinder 29 to form a solid fuel. Is received by the inner cylinder 29. The stirring rotor 19 is provided on the grate 12 in the inner cylinder 29, and the discharge rotor 20 is provided on the bottom 29 a in the inner cylinder 29.
[0045]
The weight of the inner cylinder 29 is measured by the load cell 4 outside the furnace via the support legs 30 that support the bottom 29a. The support leg 30 penetrates the bottom 1a of the furnace main body 1b so as to be vertically slidable. The inner cylinder 29 is shorter than the furnace body 1b, which is an outer cylinder, and a funnel portion 29b for introducing solid fuel is provided at an upper end of the inner cylinder 29.
[0046]
In the case of the dry distillation gas generating furnace 1 shown in FIG. 11, the heavier furnace body 1b is not included in the weight measured by the load cell 4, and the weight of the lighter inner cylinder 29 is measured together with the solid fuel in the furnace. Get higher. It is sufficient that the load cell 4 itself has a low withstand pressure specification.
[0047]
In the figure, the combustion residue (carbide or ash) in the inner cylinder 29 is discharged by the discharge rotor 20 from the discharge port 31 of the bottom 1a of the furnace body 1b to the outside of the furnace through the opening of the bottom 29a of the inner cylinder 29. Then, it is sent into the collecting device 33 by the unloading conveyor 32 and collected. In the figure, 34 is a solid fuel inlet, 35 is a supply port of high-temperature air for drying and hot air for starting, and 36 is a carbonization gas discharge port, and piping is connected to each. It is preferable that the carry-in device for introducing the solid fuel into the dry distillation gas generating furnace 1 from the solid fuel inlet 34 has a highly airtight structure so that the conditions in the dry distillation gas generating furnace 1 do not fluctuate due to the injection. For example, when carrying in using a screw conveyor, airtightness can be ensured by making the screw conveyor tapered and interlockingly feeding the solid fuel while compressing it.
[0048]
FIG. 12 shows another specific example of the carbonization gas generating furnace 1. This carbonization gas generating furnace 1 is slightly different from the case of FIG. 11, and the inner cylinder 29 is shorter than that of FIG. 11, and the bottom of the inner cylinder 29 is the grate 12.
[0049]
【The invention's effect】
As described above, according to the present invention, the solid fuel is continuously or intermittently charged into the carbonization gas generating furnace, and the high-temperature gas for carbonization is continuously supplied to the high-temperature gas for carbonization, so that the high-temperature gas for carbonization is used. The gas generating furnace can be downsized. Changes in combustion and carbonization conditions in the furnace due to the progress of carbonization (combustion) are detected by measuring the weight of solid fuel with a weight sensor, and the amount of solid fuel injected into the carbonization gas generation furnace and carbonization gas generation Automatically controls the amount of combustion residue (carbide, ash, etc.) from the grate in the furnace based on the measured weight, so that the same quality of carbonized gas can be generated continuously and stably, and the carbonization of waste At the same time, it is suitable for a small-scale cogeneration facility that effectively uses the gas generated at that time.
[0050]
If the amount of the high-temperature gas for carbonization to be introduced into the carbonization gas generating furnace is also automatically controlled based on the measured weight, the combustion and carbonization conditions in the furnace are more reliably maintained.
[0051]
The temperature of each of the combustion zone, carbonization zone, preliminary drying zone, and carbonization gas zone in the carbonization gas generating furnace is measured with a temperature sensor, and the input amount of solid fuel and the amount of combustion residue from the grate are measured. In this case, the automatic control can precisely control the combustion and carbonization conditions in the furnace.
[0052]
If the carbonization gas generating furnace is started to operate with hot air, the operation can be started efficiently with a small heat source in a short time.
[Brief description of the drawings]
FIG. 1 is a system configuration diagram showing a dry distillation gas generation system according to one embodiment of the present invention and an example of a gas reforming / refining system for reforming and purifying a dry distillation gas from now on.
FIG. 2 is a schematic diagram of combustion by a combustion catalyst in a reforming high-temperature air generator in FIG. 1;
FIG. 3 is a system configuration diagram showing a dry distillation gas generation system according to an embodiment of the present invention and a modification of the gas reforming / refining system.
FIG. 4 is a side view showing a specific example of the system of FIG. 1;
FIG. 5 is a plan view of the same.
FIG. 6 is a side view showing a specific example of a carbonization gas generating furnace.
FIG. 7 is a rear view of the same.
FIG. 8 is a plan view showing an example of a grate of a carbonization gas generating furnace.
FIG. 9 is a plan view showing an example of a stirring rotor.
FIG. 10 is a plan view showing an example of a discharge rotor.
FIG. 11 is a sectional view showing another specific example of the dry distillation gas generating furnace.
FIG. 12 is a sectional view showing another specific example of the dry distillation gas generating furnace.
[Explanation of symbols]
A dry distillation gas generation system B gas reforming / refining system 1 dry distillation gas generation furnace 1a bottom 1b furnace body 2 crusher 2a carry-in conveyor 3 hot air generator 4 load cell 4
Reference Signs List 5 Reforming furnace 5a Laminated heat-resistant material 6 Filter 7 Blower 8 Heat exchanger 9 Cooling / purifying device 10 High-temperature air generator for reforming 10a Mixing unit 10b Catalytic combustion unit 11 Power generation device 12 Grate 13 Combustion zone 14 Dry distillation zone 15 Reserve Drying zone 16 Dry distillation gas zone 17 Temperature sensor 18 Air supply chamber 19 Stirring rotor 20 Discharge rotor 21 High-temperature gas supply control valve 22 Underframe 23 Support leg 24 Base 25 Rotor shaft 26 Motor 27 Coupling 28 Transmission shaft 29 Inner cylinder 29a Bottom part 29b Funnel part 30 Support leg 31 Discharge port 32 Conveying conveyor 33 Recovery unit 34 Solid fuel input port 35 Supply port for high-temperature air for drying and hot air for starting 36 Drying gas discharge port

Claims (16)

While the solid fuel is continuously or intermittently charged into the carbonization gas generation furnace, the high-temperature gas for carbonization is continuously fed in and carbonized by carbonization, and carbonization gas is generated by pyrolysis while generating carbonization gas. The weight of the solid fuel in the furnace is measured with a weight sensor, and the amount of solid fuel injected into the carbonization gas generation furnace and the amount of combustion residue from the grate in the carbonization gas generation furnace are measured based on the measured weight. A carbonization gas generation method characterized by automatic control. 2. The method according to claim 1, wherein the amount of the high-temperature gas for carbonization introduced into the carbonization gas generating furnace is automatically controlled based on the measured weight. 3. The method for generating a carbonized gas according to claim 1, wherein the weight of the solid fuel is measured together with all or a part of the carbonized gas generating furnace by a weight sensor outside the carbonized gas generating furnace. The temperature of each of the combustion zone, carbonization zone, preliminary drying zone and carbonization gas zone in the carbonization gas generating furnace is measured with a temperature sensor, and the amount of solid fuel charged and the combustion residue from the grate in the carbonization gas generating furnace are measured. 4. A method for generating a carbonized gas according to claim 1, wherein the amount of the gas is automatically controlled also according to the measured temperature. 5. The method according to claim 4, wherein the amount of the high-temperature gas for carbonization into the carbonization gas generating furnace is automatically controlled based on the measured temperature. The method for generating a carbonized gas according to claim 1, 2, 3, or 4, wherein hot air is fed into the carbonized gas generating furnace to start the carbonization. The method according to claim 1, 2, 3, 4, 5, or 6, wherein the solid fuel is waste. A dry distillation gas generating furnace for carbonizing a solid fuel by dry distillation to generate a dry distillation gas by pyrolysis, a dry distillation high temperature gas supply means for feeding a dry distillation high temperature gas into the dry distillation gas generating furnace, and a dry distillation gas generating furnace Solid fuel supply means for continuously or intermittently feeding solid fuel into the furnace, combustion residue delivery means for delivering combustion residues from a grate in the carbonization gas generating furnace, and weight of the solid fuel in the carbonization gas generating furnace And a controller for automatically controlling the solid fuel supply means and the combustion residue delivery means based on the measured weight. 9. The carbonization gas generation system according to claim 8, wherein the control device automatically controls the high-temperature gas supply means for carbonization based on the measured weight. 10. The carbonization gas generation system according to claim 8, wherein the weight sensor measures the weight of the solid fuel together with all or a part of the carbonization gas generation furnace outside the carbonization gas generation furnace. The carbonization gas generating furnace has a fuel receiving inner cylinder that receives the weight of the solid fuel in an outer cylinder made of heat insulating material, and the weight sensor measures the weight of the solid fuel together with the fuel receiving inner cylinder. The carbonization gas generation system according to claim 8 or 9, wherein The carbonization gas generation system according to claim 11, wherein the grate is disposed in the fuel receiving inner cylinder. A temperature sensor for measuring the temperature of each of the combustion zone, the carbonization zone, the preliminary drying zone, and the carbonization gas zone in the carbonization gas generating furnace is provided, and the control device controls the solid fuel supply unit and the combustion residue delivery unit to measure the temperature. The carbonization gas generation system according to claim 8, 9 or 10, wherein the system is also automatically controlled. 14. The carbonization gas generation system according to claim 13, wherein the control device automatically controls the carbonization high-temperature gas supply means based on the measured temperature. 15. The dry distillation gas generating system according to claim 8, further comprising a starting hot air generating means for feeding hot air into the dry distillation gas generating furnace to start dry distillation. . 15. A combustion residue discharging means for discharging the combustion residue discharged from the grate by the combustion residue discharging means to the outside of the furnace, comprising a combustion residue discharging means. Or the carbonization gas generation system according to 15.

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