JP4231820B2 - Dry distillation gasification incineration equipment - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a dry distillation gasification incineration processing apparatus for processing waste by carbonization and completely combusting a combustible gas generated by the carbonization.

  Conventionally, as an apparatus for incinerating wastes such as waste tires, for example, while storing the waste and burning a part of the waste, the remaining heat of the waste is dry-distilled by the combustion heat and combustible There is known a dry distillation gasification incineration processing apparatus including a dry distillation furnace for generating a combustible gas and a combustion furnace for introducing the combustible gas from the dry distillation furnace and completely burning it (see, for example, Patent Document 1).

  In the dry distillation gasification incineration processing apparatus, first, the waste stored in the dry distillation furnace is ignited to start combustion of a part of the waste. As a result, the remainder of the waste is dry-distilled by the combustion heat of a part of the waste, and generation of the combustible gas starts.

  The combustible gas is introduced from the carbonization furnace into the combustion furnace and burned, but the generation of the combustible gas in the carbonization furnace is initially unstable, and the generation of the combustible gas is unstable. During this time, it is necessary to assist combustion with an auxiliary burner or the like. However, the combustible gas is quantitatively generated as the dry distillation is stabilized, and combustion can be continued naturally by the combustion heat of the combustible gas itself.

  Therefore, in the dry distillation gasification incineration processing apparatus, when the combustible gas comes to spontaneously combust, the combustion temperature of the combustible gas in the combustion furnace is detected, and the dry distillation furnace according to the combustion temperature. By adjusting the amount of oxygen supplied to the gas, the combustible gas can be burned such that the combustion temperature of the combustible gas is maintained substantially constant at a preset temperature. Specifically, the adjustment of the oxygen supply amount to the dry distillation furnace is performed by reducing the oxygen supply amount to the dry distillation furnace when the combustion temperature of the combustible gas in the combustion furnace becomes higher than the set temperature. Thus, the generation of the combustible gas is suppressed. If the combustion temperature of the combustible gas in the combustion furnace becomes lower than the set temperature, the amount of oxygen supplied to the dry distillation furnace is increased to promote the generation of the combustible gas.

  Further, in the dry distillation gasification incineration processing apparatus, when the portion of the waste housed in the dry distillation furnace is reduced in the dry distillation, the combustion is performed even if the oxygen supply amount to the dry distillation furnace is increased. The combustion temperature of the combustible gas in the furnace cannot be maintained at the set temperature. Therefore, if the combustion temperature of the combustible gas in the combustion furnace cannot be maintained at the set temperature, the combustion furnace again assists the combustion of the combustible gas by the auxiliary burner, while the dry distillation furnace Then, the incineration process is completed by burning the waste directly to ash.

  In the dry distillation gasification incineration processing apparatus, the waste can be incinerated efficiently by the above-described procedure.

However, in the stage where it is necessary to assist the combustion of the combustible gas with the combustion burner or the like at the initial stage and the end of the dry distillation, the carbon monoxide concentration of the combustion exhaust generated by the combustion of the combustible gas becomes high, If the combustion exhaust is discharged as it is, there is a concern that it may adversely affect the environment.
JP-A-2-135280

  In view of such circumstances, the present invention is a dry distillation gasification incineration process capable of reliably preventing carbon monoxide emission when waste is carbonized and combustible gas generated by the carbonization is burned. An object is to provide an apparatus.

In order to achieve such an object, the present invention provides a dry distillation furnace for storing waste and combusting a part of the waste while dry-burning the remainder of the waste by the combustion heat to generate a combustible gas. A combustion furnace for burning the combustible gas introduced from the carbonization furnace, oxygen supply means for supplying oxygen necessary for complete combustion of the combustible gas to the combustion furnace, and the combustible gas in the combustion furnace A combustion temperature detecting means for detecting the combustion temperature of the combustible gas, and a setting for presetting the combustion temperature of the combustible gas detected by the combustion temperature detecting means after the natural combustion of the combustible gas in the combustion furnace is started Dry distillation gasification comprising oxygen supply means for supplying oxygen necessary for combustion of a part of the waste to the dry distillation furnace while adjusting an oxygen supply amount to the dry distillation furnace so as to maintain the temperature substantially constant in incinerator, dry distillation of the waste A start-up stage from when the waste in the carbonization furnace is ignited until the combustion temperature of the combustible gas in the combustion furnace is maintained at the set temperature, and combustion of the combustible gas In the ashing stage in which the temperature gradually decreases from the set temperature, auxiliary combustion means for assisting combustion of the combustible gas, and opening of the combustion furnace outlet when the combustible gas is assisted in combustion by the auxiliary combustion means And an opening area adjusting means for limiting the area to a predetermined range according to the heating power of the auxiliary combustion means .

  In the dry distillation gasification incineration processing apparatus of the present invention, a part of the waste stored in the dry distillation furnace is burned, and the combustible gas generated by dry distillation of the remainder of the waste by the combustion heat is used as the waste gas. It is introduced into a combustion furnace and burned. Then, after the combustible gas spontaneously burns, by detecting the combustion temperature of the combustible gas in the combustion furnace and adjusting the oxygen supply amount to the dry distillation furnace according to the combustion temperature The combustion of the combustible gas is performed so that the combustion temperature of the combustible gas is maintained substantially constant at a preset temperature.

  Here, when the combustible gas is introduced into the combustion furnace and burned, in the dry distillation gasification incineration processing apparatus of the present invention, the combustion is performed according to the amount of the combustible gas generated by the opening area adjusting means. Adjust the opening area of the furnace outlet. Specifically, the adjustment of the opening area is performed when the combustion furnace is configured such that the combustibility of the combustible gas is less than the temperature at which natural combustion is possible after the waste carbonization is started. An auxiliary combustion means for assisting the combustion of gas, wherein the opening area adjusting means determines the opening area of the outlet of the combustion furnace in accordance with the heating power of the auxiliary combustion means when the combustible gas is assisted by the auxiliary combustion means. This is done by limiting to a predetermined range.

  In the dry distillation gasification incineration apparatus of the present invention, when the combustion temperature of the combustible gas is lower than the temperature at which natural combustion is possible during the dry distillation of the waste, specifically, the combustibility at the initial stage or the end of the dry distillation. When the generation of gas is not sufficient, combustion of the combustible gas is assisted by the auxiliary combustion means. However, in this case, since the combustion temperature of the combustible gas is low, the concentration of carbon monoxide in the combustion exhaust generated by the combustion of the combustible gas becomes high.

  Therefore, in the dry distillation gasification incineration processing apparatus of the present invention, when the combustible gas is assisted in combustion by the auxiliary combustion means, the opening area of the combustion furnace outlet is limited and narrowed by the opening area adjusting means. In this way, the combustion exhaust generated by the combustion of the combustible gas becomes difficult to be discharged to the outside and is mixed in the combustion furnace, so that the carbon monoxide is sufficiently burned during this period. It is possible to substantially prevent carbon oxide from being discharged to the outside.

  On the other hand, when the combustible gas is spontaneously burned, the amount of the combustible gas generated is sufficiently large, and the opening area adjusting means limits the opening area of the combustion furnace outlet as described above. If it does, the pressure in this combustion furnace will increase. Therefore, in the dry distillation gasification incineration processing apparatus of the present invention, the opening area adjusting means, after the natural combustion of the combustible gas is started, the combustion temperature increases as the combustion temperature of the combustible gas increases. By increasing the opening area of the furnace outlet, an increase in pressure in the combustion furnace can be prevented.

  Next, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. FIG. 1 is a system configuration diagram of the dry distillation gasification incineration processing apparatus of the present embodiment, FIG. 2 is a plan view showing the configuration of the opening area adjusting means shown in FIG. 1, and FIG. 3 is a combustibility in the combustion furnace shown in FIG. It is a graph which shows the time-dependent change of the combustion temperature of gas.

  As shown in FIG. 1, the dry distillation gasification incineration apparatus of the present embodiment stores waste A such as waste tires, and includes a dry distillation furnace 1 and a dry distillation furnace 1 that perform dry distillation / gasification and combustion / ashing. Combustion furnace 2 for combusting combustible gas generated by dry distillation of waste A, temperature sensor 3 for detecting the combustion temperature T of the combustible gas in the combustion furnace 2, oxygen supply means for supplying air to the carbonization furnace 1 as combustion oxygen 4. An oxygen supply means 5 for supplying air as combustion oxygen to the combustion furnace 2 is provided.

  An inlet 7 having an openable / closable inlet door 6 is formed on the upper surface of the dry distillation furnace 1 so that the waste A can be introduced into the dry distillation furnace 1 from the inlet 7. In the state where the charging door 6 is closed, the inside of the dry distillation furnace 1 is substantially cut off from the outside air. Further, the bottom of the dry distillation furnace 1 is an empty chamber, and an oxygen supply means 4 for supplying air as combustion oxygen is connected to the empty chamber. Air supplied from the oxygen supply means 4 to the vacant chamber is introduced into the dry distillation furnace 1 through an air supply nozzle 8 provided through the furnace wall at the bottom of the dry distillation furnace 1.

  An ignition device 9 composed of an ignition burner or the like is attached to the lower side portion of the dry distillation furnace 1. The ignition device 9 burns fuel such as auxiliary combustion oil supplied from a fuel supply device (not shown) to generate a combustion flame toward the inside of the dry distillation furnace 1, and the waste in the dry distillation furnace 1 is generated by this combustion flame. Ignite object A. Further, a water jacket 10 isolated from the inside of the dry distillation furnace 1 is formed as a cooling structure on the outer peripheral part and the bottom part of the dry distillation furnace 1. Water in the water jacket 10 is supplied from a water supply device (not shown) provided outside the dry distillation furnace 1.

The combustion furnace 2 communicates with a burner furnace 11 provided with the temperature sensor 3, a combustion furnace main body 12 that opens to the upper part of the burner furnace 11, and an upper opening 12 a of the combustion furnace main body 12. And a cooling tower 14 to which a duct 13 is connected. The burner furnace 11 is connected at its base to a gas passage 16 led out from a connection part 15 provided at the top of the dry distillation furnace 1, and a combustible gas generated by dry distillation of the waste A is introduced into the dry distillation furnace 1. It is like that. An ignition device 17 (corresponding to the auxiliary combustion means of the present invention) is attached to the rear end portion of the burner furnace 11 to ignite the combustible gas introduced from the gas passage 16. The ignition device 17 is configured by an ignition burner or the like, similar to the ignition device 9, and burns a fuel such as auxiliary combustion oil supplied from a fuel supply device (not shown) to cause a combustion flame toward the inside of the burner furnace 11. Give birth.

  An outer peripheral portion of the combustion furnace 2 is a vacant chamber, and an oxygen supply means 5 for supplying air as combustion oxygen is connected to the vacant chamber. The air supplied from the oxygen supply means 5 to the vacant chamber is supplied into the combustion furnace 2 through a plurality of nozzle holes 18 provided in the outer peripheral wall of the combustion furnace 2.

  The oxygen supply means 4 for supplying air to the dry distillation furnace 1 includes an oxygen supply source 19 such as an insufflation fan provided outside the dry distillation furnace 1, a main oxygen supply pipe 20 led out from the oxygen supply source 19, The auxiliary oxygen supply pipe 21 is branched from the main oxygen supply pipe 20 and connected to the empty space provided at the bottom of the dry distillation furnace 1. The sub oxygen supply pipe 21 is provided with an adjustment valve 22 whose opening degree is adjusted according to a detection signal input from the temperature sensor 3.

  The oxygen supply means 5 for supplying air to the combustion furnace 2 is branched from the oxygen supply source 19, a main oxygen supply pipe 20 led out from the oxygen supply source 19, and the main oxygen supply pipe 20. The auxiliary oxygen supply pipe 23 is connected to the vacant space provided on the outer periphery of the combustion furnace 2. The sub oxygen supply pipe 23 is provided with an adjusting valve 24 whose opening degree is adjusted in accordance with a detection signal input from the temperature sensor 3.

  And between the combustion furnace main body 12 and the cooling tower 14 of the combustion furnace 2, the opening area adjustment plates 25a, 25b, 25c, 25d provided so as to be able to advance and retreat along the upper opening 12a of the combustion furnace main body 12 are provided. Is provided. As shown in FIG. 2, the opening area adjustment plate 25a is provided opposite to the opening area adjustment plate 25b, and the opening area adjustment plate 25c is provided opposite to the opening area adjustment plate 25d. The opening area adjusting plates 25c and 25d are provided in directions orthogonal to each other. The opening area adjustment plate 25a is advanced and retracted by a drive device 26 such as a cylinder driven in accordance with a detection signal from the temperature sensor 3 or a signal from the ignition device 17, and the other opening area adjustment plates 25b, 25c, and 25d are cams. Such a mechanical mechanism can be moved back and forth in conjunction with the opening area adjusting plate 25a. In the dry distillation gasification incineration processing apparatus of this embodiment shown in FIG. 1, the opening area of the upper opening 12a of the combustion furnace main body 12 is increased by moving the opening area adjusting plates 25a, 25b, 25c, and 25d back and forth. It comes to adjust.

  Next, the operation of the dry distillation gasification incineration apparatus of this embodiment shown in FIG. 1 will be described.

  In the dry distillation gasification incineration apparatus of this embodiment, first, the charging door 6 of the dry distillation furnace 1 is opened, and the waste A is input into the dry distillation furnace 1 from the charging port 7. Next, after closing the charging door 6, the ignition device 9 is operated for a predetermined time, whereby the waste A in the dry distillation furnace 1 is ignited and partial combustion of the waste A is started.

  At the start of partial combustion of the waste A, the regulating valve 22 of the auxiliary oxygen supply pipe 21 connected to the dry distillation furnace 1 is opened with a slight opening, and the oxygen supply source 19 enters the dry distillation furnace 1. A relatively small amount of oxygen (air) is supplied. For this reason, the partial combustion of the waste A is started using oxygen existing in the dry distillation furnace 1 and a relatively small amount of oxygen supplied from the oxygen supply source 19.

  Thus, when partial combustion in the lower layer part of the waste A in the dry distillation furnace 1 is started, dry distillation of the upper layer part of the waste A is started by the combustion heat, and generation of combustible gas is started by the dry distillation. . The combustible gas generated in the dry distillation furnace 1 is introduced into the burner furnace 11 of the combustion furnace 2 through the gas passage 16 and is ignited by the ignition device 17 to start combustion.

  Combustion exhaust gas (exhaust gas) generated by the combustion of combustible gas in the burner furnace 11 is cooled by the cooling tower 14 through the combustion furnace main body 12, and then from a chimney (not shown) via a quenching tower (not shown), a bag filter, and the like. Released into the atmosphere.

  When the partial combustion of the waste A is performed, in the dry distillation furnace 1, the opening degree of the adjustment valve 22 of the auxiliary oxygen supply pipe 21 is set so that the oxygen supply amount to the dry distillation furnace 1 is continuously in the lower layer portion of the waste A. And gradually increase in steps while limiting to the extent necessary for partial combustion. In this way, the partial combustion of the waste A in the dry distillation furnace 1 is gradually stabilized while consuming a small amount of oxygen supplied from the oxygen supply source 19, while the combustion range is supplied from the oxygen supply source 19. It gradually expands in the lower layer portion of the waste A according to the amount of oxygen to be produced. And with the stabilization of combustion in the lower layer part of the waste A, the dry distillation of the upper layer part of the waste A due to the combustion heat gradually becomes active and proceeds stably, and the combustibility generated by the dry distillation. The amount of gas will also increase gradually.

  As a result, as shown in FIG. 3, the combustion temperature T of the combustible gas in the combustion furnace 2 detected by the temperature sensor 3 also increases. Note that the ignition device 9 of the dry distillation furnace 1 is stopped when it is confirmed that the combustion in the lower layer portion of the waste A is stabilized.

Next, the combustion temperature T of the combustible gas detected by the temperature sensor 3 further rises, and reaches a temperature T ₂ slightly lower than the preset temperature T ₁ set in advance as a temperature at which the combustible gas can spontaneously combust. Then, the regulating valve 22 is automatically feedback controlled so that the combustion temperature T is maintained substantially constant at the set temperature T ₁ .

Specifically, when the combustion temperature T of the combustible gas detected by the temperature sensor 3 becomes lower than the set temperature T ₁ , the opening of the regulating valve 22 is increased to increase the oxygen supply amount to the dry distillation furnace 1, Promotes the generation of flammable gases. On the contrary, when the combustion temperature T of the combustible gas detected by the temperature sensor 3 becomes higher than the set temperature T ₁ , the opening degree of the regulating valve 22 is reduced to reduce the oxygen supply amount to the dry distillation furnace 1 and the combustibility. Suppresses gas generation. Thus, by feedback controlling the opening of the adjustment valve 22, as shown in FIG. 3, the combustion temperature T of the combustible gas is maintained at a substantially constant set temperature T ₁ in the combustion furnace 2, the dry distillation furnace 1 Combustion of the lower layer portion of the waste A and dry distillation of the upper layer portion proceed stably.

The process from when the waste A in the carbonization furnace 1 is ignited until the combustion temperature T of the combustible gas in the combustion furnace 2 is maintained at a substantially constant set temperature T ₁ is shown in FIG. This is shown as “Raising stage”. In the start-up stage, the amount of combustible gas generated in the dry distillation furnace 1 is not sufficient, and the combustion temperature T of the combustible gas is low. Therefore, the concentration of carbon monoxide in the combustion exhaust gas is high, and the combustion exhaust gas remains as it is. If discharged into the atmosphere, there is a risk of polluting the environment.

  Therefore, in the dry distillation gasification incineration apparatus of the present embodiment, a signal is sent from the ignition device 17 to the drive device 26 while the ignition device 17 is operating at the start-up stage, and the drive device 26 responds to the signal. Thus, the opening area adjusting plates 25a, 25b, 25c and 25d are driven to narrow the opening area of the upper opening 12a of the combustion furnace main body 12. As a result, the combustion exhaust gas is mixed in the combustion furnace main body 12, and carbon monoxide is sufficiently combusted during the mixing, so that the emission of carbon monoxide can be substantially prevented.

  The opening area 12a of the upper opening of the combustion furnace main body 12 by the opening area adjusting plates 25a, 25b, 25c, and 25d is set in a range set in advance according to the heating power of the ignition device 17.

Next, when the combustion temperature T of the combustible gas in the combustion furnace 2 is maintained at a substantially constant set temperature T ₁ , the ignition device 17 of the burner furnace 11 is stopped, and the combustible gas is continuously natural. It will burn. When combusting the combustible gas in the combustion furnace 2, the adjustment valve 24 of the auxiliary oxygen supply pipe 23 connected to the combustion furnace 2 corresponds to the combustion temperature T of the combustible gas detected by the temperature sensor 3. The opening degree is automatically adjusted, and the amount of oxygen required for complete combustion of the combustible gas is supplied into the combustion furnace 2.

A process in which the combustible gas continuously spontaneously burns is shown as a “natural combustion stage” in FIG. In the natural combustion stage, the combustion temperature T of the combustible gas can be maintained at a substantially constant set temperature T ₁ . At this stage, since the amount of combustible gas generated in the dry distillation furnace 1 is large, the opening area of the upper opening 12a of the combustion furnace body 12 is narrowed by the opening area adjusting plates 25a, 25b, 25c, and 25d as described above. If so, the pressure in the combustion furnace main body 12 increases due to the combustion exhaust.

  Therefore, in the natural combustion stage, the driving device 26 drives the opening area adjusting plates 25a, 25b, 25c, and 25d in accordance with the detection signal of the temperature sensor 3, and the combustion is increased as the combustion temperature T of the combustible gas increases. The opening area of the upper opening 12a of the furnace body 12 is increased. As a result, it is possible to prevent the pressure in the combustion furnace main body 12 from increasing due to the combustion exhaust in the natural combustion stage.

Next, if natural combustion of the combustible gas is continued, the portion of the waste A in the dry distillation furnace 1 that can be subjected to dry distillation will eventually be reduced, and the adjustment valve 22 of the auxiliary oxygen supply pipe 21 connected to the dry distillation furnace 1 is opened. Even if the degree is increased, a sufficient amount of the combustible gas is not generated. In this case, the combustion temperature T of the combustible gas cannot be maintained at a substantially constant set temperature T ₁ depending on the natural combustion, so that the ignition device 17 of the burner furnace 11 is ignited again to combust the combustible gas. Assist the combustion of sex gases. At this time, the combustion temperature T of the combustible gas gradually decreases as the portion of the waste A that can be dry distilled decreases.

  On the other hand, in the dry distillation furnace 1, when there is no portion that can be carbonized in the waste A, the direct combustion of the waste A starts, and finally the waste A is completely incinerated. Further, the ignition device 17 of the burner furnace 11 is stopped when the ashing of the waste A is confirmed.

The process in which the combustion temperature T of the combustible gas gradually decreases from a substantially constant set temperature T ₁ is shown as “ashing stage” in FIG. In the ashing stage, similarly to the start-up stage, the amount of combustible gas generated in the dry distillation furnace 1 is not sufficient, and the combustion temperature T of the combustible gas is low, so the concentration of carbon monoxide in the combustion exhaust gas Is expensive.

  Therefore, in the dry distillation gasification incineration apparatus of the present embodiment, a signal is sent from the ignition device 17 to the drive device 26 while the ignition device 17 is operating in the ashing stage, and the drive device 26 responds to the signal. Thus, the opening area adjusting plates 25a, 25b, 25c and 25d are driven to narrow the opening area of the upper opening 12a of the combustion furnace main body 12. As a result, the combustion exhaust gas is mixed in the combustion furnace main body 12, and carbon monoxide is sufficiently combusted during the mixing, so that the emission of carbon monoxide can be substantially prevented.

  Note that the opening area of the upper opening 12a of the combustion furnace body 12 by the opening area adjusting plates 25a, 25b, 25c, and 25d is in a range set in advance according to the heating power of the ignition device 17, as in the start-up stage. It is supposed to be.

  As a result, according to the dry distillation gasification incineration apparatus of this embodiment, at the initial stage (start-up stage) or final stage (ashing stage) of the dry distillation of the waste A in the dry distillation furnace 1, the generation of the combustible gas Even when the amount is small and the combustion temperature T of the combustible gas is low, the emission of carbon monoxide can be prevented.

  In the present embodiment, the opening area adjusting plates 25a, 25b, 25c, and 25d are advanced and retracted along the upper opening 12a of the combustion furnace body 12 by the driving device 26, thereby adjusting the opening area of the upper opening 12a. ing. However, instead of this, a rotatable rotating plate and a driving device for rotating the rotating plate are provided in the upper opening 12a of the combustion furnace main body 12, and a detection signal from the temperature sensor 3 or a signal from the ignition device 17 is provided. Accordingly, the opening area of the upper opening 12a may be adjusted by rotationally driving the rotating plate by the driving device.

The system block diagram which shows one structural example of the dry distillation gasification incineration processing apparatus of this invention. The top view which shows the structure of the opening area adjustment means shown in FIG. The graph which shows the time-dependent change of the combustion temperature of the combustible gas in the combustion furnace shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Dry distillation furnace, 2 ... Combustion furnace, 3 ... Combustion temperature detection means, 4 ... Oxygen supply means, 5 ... Oxygen supply means, 12a ... Combustion furnace exit, 17 ... Ignition apparatus ( supporting combustion means ) , 25a, 25b, 25c, 25d, 26 ... Opening area adjusting means.

Claims (2)

A combustible gas for storing combustible gas, combusting part of the waste material, and carbonizing the remainder of the waste material to produce combustible gas, and combustible gas introduced from the combustible gas furnace A combustion furnace for burning the gas, oxygen supply means for supplying the combustion furnace with oxygen necessary for complete combustion of the combustible gas, combustion temperature detection means for detecting the combustion temperature of the combustible gas in the combustion furnace, The dry distillation furnace so as to maintain the combustion temperature of the combustible gas detected by the combustion temperature detecting means after the natural combustion of the combustible gas in the combustion furnace is maintained at a preset temperature. In a dry distillation gasification incineration processing apparatus comprising oxygen supply means for supplying oxygen necessary for combustion of a part of the waste to the dry distillation furnace while adjusting an oxygen supply amount to
After the start of the carbonization of the waste, a startup stage until the combustion temperature of the combustible gas in the combustion furnace is maintained at the set temperature after the waste in the carbonization furnace is ignited, And an auxiliary combustion means for assisting combustion of the combustible gas in the ashing stage in which the combustion temperature of the combustible gas gradually decreases from the set temperature,
An opening area adjusting means for limiting an opening area of the outlet of the combustion furnace to a predetermined range according to a heating power of the auxiliary combustion means when the combustible gas is assisted in combustion by the auxiliary combustion means. A dry distillation gasification incineration processing apparatus comprising: A combustible gas for storing combustible gas, combusting part of the waste material, and carbonizing the remainder of the waste material to produce combustible gas, and combustible gas introduced from the combustible gas furnace A combustion furnace for burning the gas, oxygen supply means for supplying the combustion furnace with oxygen necessary for complete combustion of the combustible gas, combustion temperature detection means for detecting the combustion temperature of the combustible gas in the combustion furnace, The dry distillation furnace so as to maintain the combustion temperature of the combustible gas detected by the combustion temperature detecting means after the natural combustion of the combustible gas in the combustion furnace is maintained at a preset temperature. In a dry distillation gasification incineration processing apparatus comprising oxygen supply means for supplying oxygen necessary for combustion of a part of the waste to the dry distillation furnace while adjusting an oxygen supply amount to
  Comprising an opening area adjusting means for adjusting the opening area of the combustion furnace outlet;
  Corresponding to the combustion temperature detected by the combustion temperature detecting means after the natural combustion of the combustible gas is started, the oxygen supply means supplies oxygen to the combustion furnace and supplies oxygen to the dry distillation furnace. A dry distillation gasification incineration treatment apparatus characterized in that the supply is controlled and the opening area adjusting means increases the opening area of the combustion furnace outlet as the combustion temperature increases.

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