JP2000018547A - Gasification incinerating device and control method of operation of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the generation of black smoke by controlling the optimum amount of air. SOLUTION: The inside temperature of a secondary combustion chamber 6 is detected by a secondary temperature detector 9 while the changing rate per time of the inside temperature of the secondary combustion chamber 6, which is detected by the secondary temperature detector 9, is calculated by changing rate of secondary temperature per time operating means 24. In this case, when the changing rate of inside temperature of secondary combustion chamber 6 per time, which is calculated by the changing rate of secondary temperature per time operating means 24, is higher than a predetermined value, the supplying amount of secondary air, supplied by a secondary air supplying device 8, is increased forcibly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gasification and incineration apparatus and a method for controlling the operation of the gasification and incineration apparatus.

[0002]

2. Description of the Related Art FIG. 4 shows a configuration of a conventional gasification combustion furnace. The conventional gasification combustion furnace includes a primary combustion chamber (gasification furnace, dry distillation furnace) 1 into which incineration material is charged, and a primary ignition device (primary burner) for igniting the incineration material in the primary combustion chamber 1.
2, a primary air supply device 3 for supplying air required for the thermal decomposition of incineration to the primary combustion chamber 1, and a primary temperature detector (thermocouple) 4 for detecting the indoor temperature of the primary combustion chamber 1 A pressure detector 5 for detecting the indoor pressure of the primary combustion chamber 1; and a secondary combustion chamber (gas combustion furnace) for completely combusting the combustible gas generated by the thermal decomposition of the incineration in the primary combustion chamber 1. ) 6 and secondary combustion chamber 6
Secondary temperature maintaining device (secondary burner) 7 for maintaining the temperature required for the combustible gas introduced into the combustion chamber to burn, and supplying air necessary for combustion of the combustible gas to the secondary combustion chamber 6 2 A secondary air supply device 8 for detecting the indoor temperature of the secondary combustion chamber 6
Secondary temperature detector (thermocouple) 9, exhaust gas temperature detector (thermocouple) 10 for detecting the temperature of exhaust gas, chimney 11, on / off control of primary ignition device 2 and secondary temperature maintaining device 7, and 1 A controller 12 for controlling the amount of primary air supplied by the secondary air supply device 3 and the amount of secondary air supplied by the secondary air supply device 8.

The control means 12 detects the temperature detected by the primary temperature detector 4, the pressure detected by the pressure detector 5, the temperature detected by the secondary temperature detector 9, and the temperature detected by the exhaust gas temperature detector 10. Based on the temperature, the primary air supply amount by the primary air supply device 3 and the secondary air supply amount by the secondary air supply device 8 are calculated and determined.

Next, the operation of the conventional gasification and combustion furnace having the above-described configuration will be described. The incineration material charged into the primary combustion chamber 1 is ignited by a primary burner 2 and air required for thermal decomposition is supplied to the primary combustion chamber 1 by a primary air supply device 3. Thereafter, the room temperature of the primary combustion chamber 1 (hereinafter, referred to as the primary temperature) is maintained at a predetermined value, for example, 400 to 500 ° C. by controlling the thermal power of the primary burner 2 and the amount of supplied air. A portion of the ignited combustion material burns, and the heat of combustion causes a portion to start pyrolysis. By this thermal decomposition, combustible gas is generated in the primary combustion chamber 1, and this combustible gas is sent to the secondary combustion chamber 6.

In the secondary combustion chamber 6, in order to burn combustible gas, the indoor temperature (hereinafter referred to as secondary temperature) of the secondary combustion chamber 6 is set to, for example, 800 to 900.degree.
The secondary combustion chamber 6 is supplied with an amount of air required for combustion by a secondary air supply device 8. Usually, the secondary temperature is
For example, in order to keep the temperature at 800 ° C. or higher, a secondary combustion chamber preheating period is provided for operating the secondary burner 7 and raising the secondary temperature before igniting the incinerated material. The burnable combustible gas is discharged into the atmosphere from the chimney 11 as exhaust gas.

[0006] In such a gasification incinerator, the combustion process includes a preheating period for the secondary combustion chamber for raising the secondary temperature to a predetermined temperature such as 800 ° C. or more, and the incineration of the primary combustion chamber 1 Combustion gas is generated by ignition and pyrolysis to generate a combustible gas, and the combustible gas is burned in the secondary combustion chamber 6, and the incinerated material that has been gasified and carbonized is burned in the primary combustion chamber 1 There are cases where the carbonization combustion period for incineration is divided into a cooling period in which carbonization combustion is attenuated and ashing proceeds and cools down.

Next, a control method of each unit will be described. The primary burner 2 is on / off controlled such that the primary burner 2 is turned off at, for example, 500 ° C. depending on the primary temperature, and turned on again when the temperature drops at 400 ° C. Usually, the primary burner 2 ignites the incinerated material, and once it reaches, for example, 500 ° C., the primary burner 2 hardly turns on again thereafter. Secondary burner 7
Similarly, depending on the secondary temperature, for example, off at 900 ° C., 8
If the temperature drops to 00 ° C., on / off control is performed so as to turn on again. By maintaining the temperature of the secondary combustion chamber at 800 ° C. or higher, the combustible gas self-combustes without using ignition means.
Therefore, the secondary burner 7 is normally turned off when the gasification combustion period starts.

Here, the amount of primary air supplied by the primary air supply device 3 needs to be controlled so that gasification is performed stably, and the amount of secondary air supplied by the secondary air supply device 8 is flammable. It needs to be controlled to supply an appropriate amount of air to completely burn the reactive gas.

Conventionally, such air amount control is based on empirical rules such as past operating data or operator's intuition, a method of roughly estimating a combustion state from a primary temperature or a secondary temperature, or a method of controlling flammable gas. Alternatively, a method is provided in which a gas sensor capable of analyzing the components of exhaust gas is provided, and the required amount of air is determined based on the result.

[0010] Part or all of the control described above is
Usually, the process ends when the gasification of the incinerated material ends.

[0011]

In the conventional gasification combustion furnace, immediately after the incineration is ignited by the primary burner,
Since the secondary air supply amount in the secondary combustion chamber is insufficient, black smoke may be generated. Further, in the gasification combustion process, the temperature of the secondary combustion chamber rises too much, and the temperature of the secondary combustion chamber may exceed the allowable temperature of the refractory bricks and the like of the secondary combustion chamber. descend.

Further, when the generation of combustible gas increases due to a rise in the temperature of the primary combustion chamber and the combustible liquid material burns simultaneously with the evaporation, the combustible gas is rapidly generated, and Since the temperature of the next combustion chamber may become abnormally high, the durability of the furnace is reduced.

[0013] Some of them have a function of automatically changing an air supply amount in accordance with a combustion process (a gasification combustion process, a carbonization combustion process), but are restarted after the operation is stopped due to a temporary power failure or the like. Sometimes it was very difficult to return to the fixed pattern.

[0014] In addition, when each device fails, especially when the secondary burner fails, the secondary combustion chamber cannot be maintained at 800 ° C or higher, so it is necessary to make an emergency stop in the gasification combustion process. Does not take this measure and does not perform an automatic emergency stop when a failure occurs.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is possible to prevent the generation of black smoke and abnormally high temperatures in a combustion chamber by optimal air amount control, and to automatically control the occurrence of a failure. The purpose of the present invention is to provide a gasification incinerator and an operation control method for the gasification and incineration device which can perform an emergency stop appropriately and can quickly return to a normal combustion process when restarting after an operation stop due to a temporary power failure or the like. And

[0016]

In order to achieve the above-mentioned object, an incinerator according to the present invention comprises: a primary combustion chamber into which incineration material is charged; and an ignition device for igniting the incineration material in the primary combustion chamber. A secondary ignition device, a primary air supply device for supplying air required for the thermal decomposition of the incinerated material put into the primary combustion chamber to the primary combustion chamber, and a thermal decomposition of the incinerated material in the primary combustion chamber Secondary combustion chamber for combusting the combustible gas generated by the combustion, a secondary temperature maintaining device for maintaining a temperature required for burning the combustible gas introduced into the secondary combustion chamber, and secondary combustion The air necessary for the combustible gas introduced into the chamber to burn is
In a gasification and incineration device having a secondary air supply device for supplying to a secondary combustion chamber, a secondary temperature detector for detecting an indoor temperature of the secondary combustion chamber, and the secondary temperature detector detected by the secondary temperature detector A secondary temperature temporal change rate calculating means for calculating a temporal change rate of the room temperature of the secondary combustion chamber, and a temporal change rate of the room temperature of the secondary combustion chamber calculated by the secondary temperature temporal change rate calculating means; Control means for forcibly increasing the amount of secondary air supplied by the secondary air supply device if is less than or equal to a predetermined value.

According to the next invention, the gasification and incineration apparatus
A primary combustion chamber into which the incineration material is charged, a primary ignition device for igniting the incineration material in the primary combustion chamber, and air required for thermal decomposition of the incineration material charged into the primary combustion chamber, A primary air supply device for supplying to the secondary combustion chamber, and a combustible gas generated by pyrolysis of incinerated material in the primary combustion chamber;
A secondary combustion chamber, a secondary temperature maintaining device for maintaining a temperature required for burning the combustible gas introduced into the secondary combustion chamber, and combustible gas introduced into the secondary combustion chamber A gasification and incineration system having a secondary air supply device for supplying air required for the secondary combustion chamber to the secondary combustion chamber, a primary temperature detector for detecting an indoor temperature of the primary combustion chamber, and the primary temperature A primary temperature temporal change rate calculating means for calculating a temporal change rate of the room temperature of the primary combustion chamber detected by a detector, wherein the primary combustion calculated by the primary temperature temporal change rate calculating means; A control means for forcibly reducing a primary air supply amount by the primary air supply device when a temporal change rate of the room temperature of the room is equal to or more than a predetermined value.

According to the next invention, the gasification and incineration apparatus comprises:
A primary combustion chamber into which the incineration material is charged, a primary ignition device for igniting the incineration material in the primary combustion chamber, and air required for thermal decomposition of the incineration material charged into the primary combustion chamber, A primary air supply device for supplying to the secondary combustion chamber, and a combustible gas generated by pyrolysis of incinerated material in the primary combustion chamber;
A secondary combustion chamber, a secondary temperature maintaining device for maintaining a temperature required for burning the combustible gas introduced into the secondary combustion chamber, and combustible gas introduced into the secondary combustion chamber In a gasification and incineration device having a secondary air supply device for supplying air required for the secondary combustion chamber to the secondary combustion chamber, a pressure detector for detecting an indoor pressure of the primary combustion chamber and a pressure detector for detecting the indoor pressure of the primary combustion chamber A pressure time change rate calculating means for calculating the time change rate of the room pressure of the primary combustion chamber, and a time change rate of the indoor pressure of the primary combustion chamber calculated by the pressure time change rate calculating means. Control means for forcibly reducing the amount of primary air supplied by the primary air supply device if is greater than or equal to a predetermined value.

According to the next invention, the gasification and incineration apparatus comprises:
A primary combustion chamber into which the incineration material is charged, a primary ignition device for igniting the incineration material in the primary combustion chamber, and air required for thermal decomposition of the incineration material charged into the primary combustion chamber, A primary air supply device for supplying to the secondary combustion chamber, and a combustible gas generated by pyrolysis of incinerated material in the primary combustion chamber;
A secondary combustion chamber, a secondary temperature maintaining device for maintaining a temperature required for burning the combustible gas introduced into the secondary combustion chamber, and combustible gas introduced into the secondary combustion chamber A secondary air supply device for supplying air required for the second combustion chamber to the secondary combustion chamber, a secondary temperature detector for detecting a room temperature of the secondary combustion chamber, and the secondary temperature detector. Control means for forcibly increasing the amount of secondary air supplied by the secondary air supply device if the room temperature of the secondary combustion chamber detected by the detector is equal to or higher than a predetermined value. is there.

According to the next invention, the gasification and incineration apparatus comprises:
A primary combustion chamber into which the incineration material is charged, a primary ignition device for igniting the incineration material in the primary combustion chamber, and air required for thermal decomposition of the incineration material charged into the primary combustion chamber, A primary air supply device for supplying to the secondary combustion chamber, and a combustible gas generated by pyrolysis of incinerated material in the primary combustion chamber;
A secondary combustion chamber, a secondary temperature maintaining device for maintaining a temperature required for burning the combustible gas introduced into the secondary combustion chamber, and combustible gas introduced into the secondary combustion chamber A gasification and incineration device having a secondary air supply device for supplying air required for the secondary combustion chamber to the secondary combustion chamber, wherein a failure detection means for detecting a failure of the secondary temperature maintaining device; If a failure of the secondary temperature maintenance device is detected in the secondary combustion chamber preheating process before the primary ignition device is ignited, an abnormal alarm is output, and if the gasification combustion is not completed, the primary air amount is forcibly reduced. Control means for stopping combustion of the incinerated material and continuing normal air amount control after the end of gasification combustion and before the end of carbonization combustion.

According to the next invention, the gasification and incineration apparatus
A primary combustion chamber into which the incineration material is charged, a primary ignition device for igniting the incineration material in the primary combustion chamber, and air required for thermal decomposition of the incineration material charged into the primary combustion chamber, A primary air supply device for supplying to the secondary combustion chamber, and a combustible gas generated by pyrolysis of incinerated material in the primary combustion chamber;
A secondary combustion chamber, a secondary temperature maintaining device for maintaining a temperature required for burning the combustible gas introduced into the secondary combustion chamber, and combustible gas introduced into the secondary combustion chamber In the gasification and incineration system having a secondary air supply device for supplying air necessary for the above to the secondary combustion chamber, the combustion state of the primary combustion chamber 1 at the start of operation is determined, and It has a control means for selectively setting a start-up process of a series of sequence operations such as a pre-heating process of the next combustion chamber, a gasification combustion process, and a carbonization combustion process.

According to another aspect of the present invention, there is provided an incinerator according to the present invention, wherein the incineration material is charged into the operation control method of the gasification incinerator. A primary igniter for igniting the incineration in the primary combustion chamber, and supplying air necessary for thermal decomposition of the incineration into the primary combustion chamber to the primary combustion chamber 1
A secondary air supply device, a secondary combustion chamber for combusting combustible gas generated by thermal decomposition of the incineration in the primary combustion chamber, and a combustible gas introduced into the secondary combustion chamber for combustion. A secondary temperature maintaining device for maintaining a required temperature, and a secondary air supply device for supplying air necessary for burning the combustible gas introduced into the secondary combustion chamber to the secondary combustion chamber. In the operation control method for a gasification and incineration apparatus, a room temperature of the secondary combustion chamber is detected by a secondary temperature detector, and a time change of the room temperature of the secondary combustion chamber detected by the secondary temperature detector Rate, and if the calculated time rate of change of the room temperature of the secondary combustion chamber is equal to or less than a predetermined value,
This is to forcibly increase the amount of secondary air supplied by the secondary air supply device.

The incinerator according to the next invention comprises a primary combustion chamber into which the incinerated material is charged, a primary ignition device for igniting the incinerated material in the primary combustion chamber, and an incineration charged into the primary combustion chamber. Supply air necessary for the thermal decomposition of material to the primary combustion chamber 1
A secondary air supply device, a secondary combustion chamber for combusting combustible gas generated by thermal decomposition of the incineration in the primary combustion chamber, and a combustible gas introduced into the secondary combustion chamber for combustion. A secondary temperature maintaining device for maintaining a required temperature, and a secondary air supply device for supplying air necessary for burning the combustible gas introduced into the secondary combustion chamber to the secondary combustion chamber. In the operation control method for a gasification and incineration apparatus, a primary temperature detector detects a room temperature of the primary combustion chamber, and a temporal change in the room temperature of the primary combustion chamber detected by the primary temperature detector. The rate is calculated, and if the calculated time change rate of the room temperature of the primary combustion chamber is equal to or more than a predetermined value, the amount of primary air supplied by the primary air supply device is forcibly reduced.

The incinerator according to the next invention comprises a primary combustion chamber into which the incinerated material is charged, a primary ignition device for igniting the incinerated material in the primary combustion chamber, and an incineration charged into the primary combustion chamber. Supply air necessary for the thermal decomposition of material to the primary combustion chamber 1
A secondary air supply device, a secondary combustion chamber for combusting combustible gas generated by thermal decomposition of the incineration in the primary combustion chamber, and a combustible gas introduced into the secondary combustion chamber for combustion. A secondary temperature maintaining device for maintaining a required temperature, and a secondary air supply device for supplying air necessary for burning the combustible gas introduced into the secondary combustion chamber to the secondary combustion chamber. In the operation control method for a gasification and incineration apparatus, a pressure detector detects the indoor pressure of the primary combustion chamber, and calculates a temporal change rate of the indoor pressure of the primary combustion chamber detected by the pressure detector. If the calculated time change rate of the indoor pressure of the primary combustion chamber is equal to or greater than a predetermined value, the primary air supply amount by the primary air supply device is forcibly reduced.

The incinerator according to the next invention comprises a primary combustion chamber into which the incinerated material is charged, a primary ignition device for igniting the incinerated material in the primary combustion chamber, and an incineration charged into the primary combustion chamber. Supply air necessary for the thermal decomposition of material to the primary combustion chamber 1
A secondary air supply device, a secondary combustion chamber for combusting combustible gas generated by thermal decomposition of the incineration in the primary combustion chamber, and a combustible gas introduced into the secondary combustion chamber for combustion. A secondary temperature maintaining device for maintaining a required temperature, and a secondary air supply device for supplying air necessary for burning the combustible gas introduced into the secondary combustion chamber to the secondary combustion chamber. In the operation control method for a gasification and incineration apparatus, a room temperature of the secondary combustion chamber is detected by a secondary temperature detector, and the room temperature of the secondary combustion chamber detected by the secondary temperature detector is a predetermined value. Above, the secondary air supply amount by the secondary air supply device is forcibly increased.

The incinerator according to the next invention comprises a primary combustion chamber into which the incinerated material is charged, a primary ignition device for igniting the incinerated material in the primary combustion chamber, and an incineration charged into the primary combustion chamber. Supply air necessary for the thermal decomposition of material to the primary combustion chamber 1
A secondary air supply device, a secondary combustion chamber for combusting combustible gas generated by thermal decomposition of the incineration in the primary combustion chamber, and a combustible gas introduced into the secondary combustion chamber for combustion. A secondary temperature maintaining device for maintaining a required temperature, and a secondary air supply device for supplying air necessary for burning the combustible gas introduced into the secondary combustion chamber to the secondary combustion chamber. In the operation control method for a gasification and incineration apparatus, a failure of the secondary temperature maintenance device is detected by failure detection means, and the failure of the secondary temperature maintenance device is detected by the failure detection means. If it is detected in the pre-heating process of the secondary combustion chamber, an abnormal alarm is output. If it is before the end of gasification combustion, the amount of primary air is forcibly reduced to stop burning incinerated materials, and carbonization is performed after the end of gasification combustion. If the combustion is not completed, normal air volume control is continued.

The incinerator according to the next invention comprises a primary combustion chamber into which the incinerated material is charged, a primary ignition device for igniting the incinerated material in the primary combustion chamber, and an incineration charged into the primary combustion chamber. Supply air necessary for the thermal decomposition of material to the primary combustion chamber 1
A secondary air supply device, a secondary combustion chamber for combusting combustible gas generated by thermal decomposition of the incineration in the primary combustion chamber, and a combustible gas introduced into the secondary combustion chamber for combustion. A secondary temperature maintaining device for maintaining a required temperature, and a secondary air supply device for supplying air necessary for burning the combustible gas introduced into the secondary combustion chamber to the secondary combustion chamber. In the operation control method of the gasification and incineration apparatus, the combustion state of the primary combustion chamber 1 at the start of operation is determined, and a series of a preheating process, a gasification combustion process, and a carbonization combustion process are performed according to the combustion state. Of the sequence operation is selectively set.

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of an incinerator and an operation control method of the incinerator according to the present invention will be described below in detail with reference to the accompanying drawings. In the embodiments of the present invention described below, portions having the same configurations as those of the above-described conventional example will be described with the same reference numerals as those of the above-described conventional example.

FIG. 1 shows an embodiment of the incinerator according to the present invention. The gasification combustion furnace includes a primary combustion chamber 1 into which incineration material is charged, a primary burner 2 for igniting the incineration material in the primary combustion chamber 1, and a primary combustion of air required for thermal decomposition of the incineration material. A primary air supply device 3 for supplying to the chamber 1;
A primary temperature detector 4 for detecting the indoor temperature of the secondary combustion chamber 1,
A pressure detector 5 for detecting the indoor pressure of the primary combustion chamber 1, a secondary combustion chamber 6 for completely combusting the combustible gas generated by the thermal decomposition of the incineration material in the primary combustion chamber 1, and a secondary combustion A secondary burner 7 for maintaining a temperature required for the combustible gas introduced into the chamber 6 to burn;
A secondary air supply device 8 for supplying the secondary combustion chamber 6, a secondary temperature detector 9 for detecting the indoor temperature of the secondary combustion chamber 6, an exhaust gas temperature detector 10 for detecting the temperature of the exhaust gas, and a chimney 11;
A secondary burner failure detector 20 based on a flame eye or the like for detecting a failure (non-ignition) of the secondary burner 7, an on / off control of the primary burner 2 and the secondary temperature maintaining device 7, and a primary air supply device 3 And a control unit 21 for controlling the primary air supply amount and the secondary air supply amount by the secondary air supply device 8.

The control means 21 comprises a primary temperature temporal change rate calculator 22 for calculating a temporal change rate of the primary temperature based on the room temperature of the primary combustion chamber 1 detected by the primary temperature detector 4; Pressure time change rate calculator 23 for calculating the time change rate of the indoor pressure of the primary combustion chamber 1 from the indoor pressure of the primary combustion chamber 1 detected by the heater 5, and 2 detected by the secondary temperature detector 9. A secondary temperature temporal change rate calculator 24 for calculating a temporal change rate of the secondary temperature from the room temperature of the secondary combustion chamber 6.

The control means 21 performs the following control. (1) It is determined whether or not the temporal change rate (increase rate) of the room temperature of the secondary combustion chamber 6 calculated by the secondary temperature temporal change rate calculator 24 is equal to or less than a predetermined value, and the secondary combustion chamber is determined. If the time change rate of the room temperature in Step 6 is equal to or less than a predetermined value, control is performed to forcibly increase the amount of secondary air supplied by the secondary air supply device 8.

Thus, at the time when the incineration material in the primary combustion chamber 1 is ignited by the primary burner 2 after the completion of the preheating process of the secondary combustion chamber, the rise in the indoor temperature of the secondary combustion chamber 6 is slow. When the time rate of change of the room temperature of the secondary combustion chamber 6 is equal to or less than a predetermined value, the amount of secondary air supplied by the secondary air supply device 8 is forcibly increased. This increase in the amount of secondary air supply prevents black smoke from being discharged from the chimney 11.

(2) It is determined whether or not the time change rate (increase rate) of the room temperature of the primary combustion chamber 1 calculated by the primary temperature time change rate calculator 22 is equal to or more than a predetermined value. If the time change rate of the room temperature of the next combustion chamber 1 is equal to or more than a predetermined value,
Control for forcibly reducing the primary air supply amount by the primary air supply device 3 is performed.

Thus, in the process in which the generation of flammable gas increases due to the rise in the temperature of the primary combustion chamber 1, the combustible liquid material burns at the same time as the evaporation, and the temperature of the room of the primary combustion chamber 1 decreases. When the time rate of change exceeds a predetermined value, the primary air supply amount by the primary air supply device 3 is forcibly reduced. Due to the decrease in the primary air supply amount, rapid generation of combustible gas is prevented, and abnormal combustion due to rapid increase of combustible gas is prevented.

(3) Temporal change rate (increase rate) of the indoor pressure of the primary combustion chamber 1 calculated by the pressure time change rate calculator 23
Is determined to be equal to or greater than a predetermined value, and the primary combustion chamber 1
If the time change rate of the indoor pressure is equal to or more than the predetermined value, control is performed to forcibly reduce the amount of primary air supplied by the primary air supply device 3.

Thus, in the process in which the generation of combustible gas increases due to the rise in temperature of the primary combustion chamber 1, the liquid combustible material is burned at the same time as the vaporization of the liquid. When the rate of change exceeds a predetermined value, the primary air supply amount by the primary air supply device 3 is forcibly reduced. This one
Due to the decrease in the supply amount of the secondary air, rapid generation of combustible gas is prevented, and abnormal combustion due to rapid increase of combustible gas is prevented.

(4) It is determined whether or not the room temperature of the secondary combustion chamber 6 detected by the secondary temperature detector 9 is higher than a predetermined value, and the room temperature of the secondary combustion chamber 6 is higher than a predetermined value. If so, the control for forcibly increasing the secondary air supply amount by the secondary air supply device 8 is performed.

Accordingly, during the gasification combustion, if the temperature of the secondary combustion chamber 6 rises and may exceed the allowable temperature of refractory bricks or the like, the indoor temperature of the secondary combustion chamber 6 is increased to a predetermined value. At this point, the secondary air supply amount by the secondary air supply device 8 is forcibly increased. Due to the increase in the amount of the secondary air supplied, a rise in the temperature of the secondary combustion chamber 6 is suppressed, and the temperature of the secondary combustion chamber 6 is prevented from exceeding the allowable temperature of refractory bricks or the like.

(5) The secondary burner failure detector 20
If a failure (non-ignition) of the secondary burner 7 is detected, an abnormal alarm is output if the primary burner 2 is not ignited (secondary combustion chamber preheating process), and if the primary burner is not yet finished, the primary air amount is output. , The combustion of the incinerated material is stopped, and if the gasification combustion is completed but before the carbonization combustion is completed, the normal air amount control is continued.

Next, the secondary burner failure detection processing will be described with reference to the flowchart shown in FIG. When the operation is started, the control means 21 takes in the output of the failure detector 20 by time interruption and monitors the state of the secondary burner 7 (step S10).

When the failure of the secondary burner 7 is detected (Yes at Step S10), it is determined whether or not the current time is after the ignition of the primary burner 2 (Step S20). If the primary burner 2 is not ignited (No at Step S20), the incinerated material is not ignited, so that an abnormal alarm indicating that the secondary burner 7 is out of order is output (Step S30). The state is recorded (step S80), and the sequence operation ends.

If the ignition has been completed (Yes at Step S20), it is confirmed whether or not the gasification combustion has ended (Step S40). Before the end of gasification combustion (step S
40 No) The amount of primary air is forcibly reduced to stop the burning of the incineration.

On the other hand, when the gasification combustion has been completed (Yes at Step S40), it is checked whether the carbonization combustion has been completed (Step S60). If the carbonization combustion has not been completed (No at Step S60), the normal air amount control is continued (Step S70), and the carbonization combustion is terminated. If the carbonization combustion has ended (Yes at Step S60), the failure state is recorded (Step S80), and the sequence operation ends.

(6) The sequence operation (secondary combustion chamber preheating process → gasification combustion process → carbonization combustion) depends on the combustion state of the primary combustion chamber 1 at the start of operation (before the completion of gasification combustion and after the completion of gasification combustion). Select and set the starting process of step).

At the start of normal operation, the gasification combustion process and the carbonization combustion process are sequentially performed starting from the secondary combustion chamber preheating process, but the temperature of the primary combustion chamber 1 and the secondary combustion It is determined whether the combustion state is before gasification combustion or after gasification combustion based on the temperature of the chamber 6 and the temporal temperature change rate. If it is before gasification combustion, a sequence operation is started from the gasification combustion process, After the gasification combustion, the sequence operation is started from the carbonization combustion process.

Next, the operation start control will be described with reference to the flowchart shown in FIG. When the operation is started, the ignition state of the primary combustion chamber 1 is confirmed by sequence selection (step S100), and if it is not ignited (step S100: No), the secondary combustion which is a normal startup process is performed. Start from the room preheating process. In this case,
Secondary combustion chamber preheating (step S110), ignition of primary combustion chamber 1, secondary air supply forced increase (step S120),
Primary and secondary air amount adjustment suitable for the gasification combustion process (Step S130), completion confirmation of gasification combustion (Step S1)
40), the adjustment of the primary and secondary air amounts suitable for the carbonization combustion process (step S150), and the completion confirmation of the carbonization combustion (step S160) are sequentially executed as usual.

On the other hand, if the primary combustion chamber 1 is ignited (Yes at step S100), the combustion state is determined from the temperature of the primary combustion chamber, the temperature of the secondary combustion chamber, and the temporal temperature change rate. It is determined whether before gasification combustion or after gasification combustion (step S170). If it is before gasification combustion, step S1 is performed.
The process jumps to step 30 to execute the gasification combustion process. If it is after the gasification combustion, the process jumps to step S150 to execute the carbonization combustion process.

As a result, after an interruption due to a power failure or the like,
When restarting, it can quickly return to the normal combustion state.

[0049]

As described above, according to the gasification and incineration apparatus of the present invention, the time change rate of the room temperature of the secondary combustion chamber calculated by the time change rate calculation means of the secondary temperature is not more than a predetermined value. For example, since the secondary air supply amount by the secondary air supply device is forcibly increased, after the secondary combustion chamber preheating process is completed,
When the incineration material in the primary combustion chamber 1 is ignited by the primary ignition device (primary burner), the temperature rise in the secondary combustion chamber is slow due to the slow rise in the indoor temperature in the secondary combustion chamber. Is less than or equal to a predetermined value, the amount of secondary air supplied by the secondary air supply device is forcibly increased, and the increase in the amount of secondary air supplied prevents black smoke from being discharged due to a shortage of air immediately after ignition. You.

According to the gasification and incineration apparatus of the next invention, if the time change rate of the room temperature of the primary combustion chamber calculated by the primary temperature time change rate calculating means is equal to or more than a predetermined value,
Since the amount of primary air supplied by the primary air supply device is forcibly reduced, in the process of increasing the generation of flammable gas due to an increase in the temperature of the primary combustion chamber, liquid combustibles burned simultaneously with evaporation. Thus, when the time change rate of the room temperature of the primary combustion chamber becomes equal to or more than a predetermined value, the amount of primary air supplied by the primary air supply device is forcibly reduced. The generation of flammable gas is prevented, abnormal combustion due to a rapid increase in flammable gas is prevented, and the durability of the furnace is improved.

According to the gasification and incineration apparatus of the next invention, if the time change rate of the indoor pressure of the primary combustion chamber calculated by the pressure time change rate calculating means is equal to or more than a predetermined value, the primary air supply apparatus is used. Since the primary air supply amount is forcibly reduced, the primary combustible material burns at the same time as the liquid combustible evaporates in the process of increasing the generation of combustible gas due to the temperature rise of the primary combustion chamber. When the temporal change rate of the room temperature of the room becomes equal to or more than a predetermined value, the primary air supply amount by the primary air supply device is forcibly reduced, and the decrease in the primary air supply amount causes rapid generation of combustible gas. Is prevented, abnormal combustion due to a rapid increase in combustible gas is prevented, and the durability of the furnace is improved.

According to the gasification and incineration device of the next invention, if the room temperature of the secondary combustion chamber detected by the secondary temperature detector is equal to or higher than a predetermined value, the secondary air supplied by the secondary air supply device is used. Since the supply amount is forcibly increased, during the gasification combustion, if the temperature of the secondary combustion chamber rises and may exceed the allowable temperature of refractory bricks or the like, the indoor temperature of the secondary combustion chamber may be increased. When the temperature reaches a predetermined value or more, the amount of secondary air supplied by the secondary air supply device is forcibly increased, and the increase in the amount of secondary air supplied suppresses a rise in the temperature of the secondary combustion chamber 6, thereby reducing the temperature of the secondary combustion chamber. The temperature of No. 6 is prevented from exceeding the allowable temperature of the refractory brick or the like, and the durability of the furnace is improved.

According to the gasification and incineration system of the next invention, if a failure of the secondary temperature maintaining device is detected in the secondary combustion chamber preheating process before the ignition of the primary ignition device by the failure detection means, an abnormality alarm is output. If the gasification combustion is not yet completed, the primary air amount is forcibly reduced to stop burning the incinerated material, and if the gasification combustion is completed and the carbonization combustion is not completed, the normal air amount control is continued. Therefore, the automatic emergency stop in the event of a failure is appropriately performed without waste.

According to the gasification and incineration apparatus according to the next invention, the combustion state of the primary combustion chamber 1 at the start of operation is determined, and the secondary combustion chamber preheating step, gasification combustion step, carbonization combustion is performed according to the combustion state. Since the starting process of a series of sequence operations called the process is selected and set, it is possible to quickly return to the normal combustion process when restarting after an operation stop due to a temporary power failure or the like.

According to the operation control method of the gasification incinerator according to the next invention, the time change rate of the room temperature of the secondary combustion chamber detected by the secondary temperature detector is calculated, and the calculated secondary temperature is calculated. If the time change rate of the room temperature of the combustion chamber is equal to or less than a predetermined value, the amount of secondary air supplied by the secondary air supply device is forcibly increased.
At the time when the incineration material in the primary combustion chamber 1 is ignited by the secondary ignition device (primary burner), the temporal change rate of the indoor temperature of the secondary combustion chamber is reduced due to the slow rise in the indoor temperature of the secondary combustion chamber. If it is less than the predetermined value, the secondary air supply amount by the secondary air supply device is forcibly increased, and the increase in the secondary air supply amount prevents black smoke from being discharged due to insufficient air amount immediately after ignition. .

According to the operation control method of the gasification incinerator according to the next invention, the time change rate of the room temperature of the primary combustion chamber detected by the primary temperature detector is calculated, and the calculated 1 is calculated.
If the temporal change rate of the room temperature of the secondary combustion chamber is equal to or more than a predetermined value, the primary air supply amount by the primary air supply device is forcibly reduced. During the process of increasing the generation, when the time change rate of the room temperature of the primary combustion chamber becomes equal to or more than a predetermined value due to the combustion of the liquid combustible simultaneously with the evaporation, the primary air supply device supplies the primary air. The primary air supply is reduced to prevent the rapid generation of combustible gas,
Abnormal combustion due to a rapid increase in combustible gas is prevented, and the durability of the furnace is improved.

According to the operation control method of the gasification and incineration apparatus according to the next invention, the temporal change rate of the indoor pressure of the primary combustion chamber detected by the pressure detector is calculated, and the calculated room of the primary combustion chamber is calculated. If the time rate of change of the pressure is equal to or more than the predetermined value, the primary air supply amount by the primary air supply device is forcibly reduced, so that the generation of combustible gas increases due to a rise in the temperature of the primary combustion chamber. In the process, when the time change rate of the room temperature of the primary combustion chamber becomes equal to or more than a predetermined value due to the combustion of the liquid combustible simultaneously with the evaporation, the primary air supply amount by the primary air supply device is forcibly reduced. Then, due to the decrease in the primary air supply amount, rapid generation of combustible gas is prevented, abnormal combustion due to rapid increase of combustible gas is prevented, and durability of the furnace is improved.

According to the operation control method of the gasification and incineration apparatus according to the next invention, if the room temperature of the secondary combustion chamber detected by the secondary temperature detector is equal to or higher than a predetermined value, the secondary air supply system is used. Since the secondary air supply is forcibly increased, if the temperature of the secondary combustion chamber rises during gasification combustion and may exceed the allowable temperature of refractory bricks, etc.
When the room temperature of the secondary combustion chamber reaches a predetermined value or more, the amount of secondary air supplied by the secondary air supply device is forcibly increased.
The increase in the amount of the secondary air supply suppresses a rise in the temperature of the secondary combustion chamber 6, prevents the temperature of the secondary combustion chamber 6 from exceeding the allowable temperature of refractory bricks or the like, and improves the durability of the furnace.

According to the operation control method of the gasification incinerator according to the next invention, if the failure detecting means detects a failure of the secondary temperature maintaining device in the secondary combustion chamber preheating process before the ignition of the primary ignition device. Outputs an abnormal alarm and forcibly reduces the amount of primary air to stop the burning of incinerated material before the end of gasification combustion, and normal air amount after the end of gasification combustion and before the end of carbonization combustion. Since the control is continued, the automatic emergency stop when a failure occurs is appropriately performed without waste.

According to the operation control method of the gasification incinerator according to the next invention, the combustion state of the primary combustion chamber 1 at the start of operation is determined, and the secondary combustion chamber preheating process, gasification combustion Since the start-up process of a series of sequence operations called the process and the carbonization combustion process is selected and set, it is possible to quickly return to the normal combustion process when restarting after an operation stop due to a temporary power failure or the like.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing one embodiment of a gasification and incineration apparatus according to the present invention.

FIG. 2 is a flowchart (failure detection) showing an operation control method of the gasification incinerator according to the present invention.

FIG. 3 is a flowchart (sequence selection) showing an operation control method of the gasification and incineration apparatus according to the present invention.

FIG. 4 is an overall configuration diagram showing a configuration of a conventional gasification incinerator.

[Explanation of symbols]

1 Primary combustion chamber, 2 Primary ignition device (primary burner), 3
Primary air supply device, 4 Primary temperature detector, 5 Pressure detector, 6 Secondary combustion chamber, 7 Secondary temperature maintenance device (Secondary burner), 8 Secondary air supply device, 9 Secondary temperature detector,
Reference Signs List 10 exhaust gas temperature detector, 11 chimney, 21 failure detector, 21 control device, 22 primary temperature temporal change rate calculator, 23 pressure temporal change rate calculator, 24 secondary temperature temporal change rate calculator.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) F23G 5/16 ZAB F23G 5/16 ZABE ZABB F term (Reference) 3K061 AA24 AB02 AC01 AC19 BA02 BA06 FA21 FA25 3K062 AA24 AB02 AC01 AC19 BA02 CA01 CB03 DA01 DA11 DB06 DB08 3K078 AA02 AA06 BA03 CA02 CA12

Claims (12)

[Claims] 1. A primary combustion chamber into which incineration material is charged, a primary ignition device for igniting the incineration material in the primary combustion chamber,
A primary air supply device for supplying the primary combustion chamber with air necessary for thermal decomposition of the incinerated material charged into the secondary combustion chamber, and a flammable gas generated by thermal decomposition of the incinerated material in the primary combustion chamber A secondary combustion chamber for burning the gas, and a second combustion chamber for maintaining a temperature required for burning the combustible gas introduced into the secondary combustion chamber.
A gasification and incineration device having a secondary temperature maintaining device and a secondary air supply device for supplying air necessary for combustible gas introduced into the secondary combustion chamber to the secondary combustion chamber; A secondary temperature detector for detecting the indoor temperature of the secondary combustion chamber; and a secondary temperature temporal change rate calculating means for calculating a temporal change rate of the indoor temperature of the secondary combustion chamber detected by the secondary temperature detector. If the time change rate of the room temperature of the secondary combustion chamber calculated by the secondary temperature time change rate calculation means is equal to or less than a predetermined value, the secondary air supply amount by the secondary air supply device is forcibly applied. A gasification and incineration apparatus comprising: a control means for increasing the number of times; 2. A primary combustion chamber into which the incineration material is charged, a primary ignition device for igniting the incineration material in the primary combustion chamber,
A primary air supply device for supplying the primary combustion chamber with air necessary for thermal decomposition of the incinerated material charged into the secondary combustion chamber, and a flammable gas generated by thermal decomposition of the incinerated material in the primary combustion chamber A secondary combustion chamber for burning the gas, and a second combustion chamber for maintaining a temperature required for burning the combustible gas introduced into the secondary combustion chamber.
A gasification and incineration device having a secondary temperature maintaining device and a secondary air supply device for supplying air required for burning the combustible gas introduced into the secondary combustion chamber to the secondary combustion chamber; A primary temperature detector for detecting a room temperature of a secondary combustion chamber, and a primary temperature temporal change rate calculating means for calculating a temporal change rate of a room temperature of the primary combustion chamber detected by the primary temperature detector. If the time change rate of the room temperature of the primary combustion chamber calculated by the primary temperature time change rate calculating means is equal to or more than a predetermined value, the primary air supply amount by the primary air supply device is forcibly applied. A gasification incinerator characterized by comprising: control means for reducing the total amount of gasification. 3. A primary combustion chamber into which the incineration material is charged, a primary ignition device for igniting the incineration material in the primary combustion chamber,
A primary air supply device for supplying the primary combustion chamber with air necessary for thermal decomposition of the incinerated material charged into the secondary combustion chamber, and a flammable gas generated by thermal decomposition of the incinerated material in the primary combustion chamber A secondary combustion chamber for burning the gas, and a second combustion chamber for maintaining a temperature required for burning the combustible gas introduced into the secondary combustion chamber.
A gasification and incineration device having a secondary temperature maintaining device and a secondary air supply device for supplying air required for burning the combustible gas introduced into the secondary combustion chamber to the secondary combustion chamber; A pressure detector for detecting the indoor pressure of the next combustion chamber; and a pressure time change rate calculating means for calculating a time change rate of the indoor pressure of the primary combustion chamber detected by the pressure detector. Control means for forcibly reducing the primary air supply amount by the primary air supply device, if the time change rate of the indoor pressure of the primary combustion chamber calculated by the change rate calculation means is equal to or more than a predetermined value; A gasification incinerator characterized by having: 4. A primary combustion chamber into which the incineration material is charged, a primary ignition device for igniting the incineration material in the primary combustion chamber,
A primary air supply device for supplying the primary combustion chamber with air necessary for thermal decomposition of the incinerated material charged into the secondary combustion chamber, and a flammable gas generated by thermal decomposition of the incinerated material in the primary combustion chamber A secondary combustion chamber for burning the gas, and a second combustion chamber for maintaining a temperature required for burning the combustible gas introduced into the secondary combustion chamber.
A gasification and incineration device having a secondary temperature maintaining device and a secondary air supply device for supplying air necessary for combustible gas introduced into the secondary combustion chamber to the secondary combustion chamber; A secondary temperature detector for detecting an indoor temperature of the secondary combustion chamber; and if the indoor temperature of the secondary combustion chamber detected by the secondary temperature detector is equal to or higher than a predetermined value, Control means for forcibly increasing the amount of secondary air supplied, and a gasification incinerator characterized by having. 5. A primary combustion chamber into which incineration material is charged, a primary ignition device for igniting the incineration material in said primary combustion chamber,
A primary air supply device for supplying the primary combustion chamber with air necessary for thermal decomposition of the incinerated material charged into the secondary combustion chamber, and a flammable gas generated by thermal decomposition of the incinerated material in the primary combustion chamber A secondary combustion chamber for burning the gas, and a second combustion chamber for maintaining a temperature required for burning the combustible gas introduced into the secondary combustion chamber.
A gasification and incineration device having a secondary temperature maintaining device and a secondary air supply device for supplying air necessary for combustible gas introduced into the secondary combustion chamber to the secondary combustion chamber; Failure detection means for detecting a failure of the secondary temperature maintenance device; and an abnormality alarm if the failure detection means detects a failure of the secondary temperature maintenance device in a secondary combustion chamber preheating process before ignition of the primary ignition device. If the output is before the end of gasification combustion, the primary air amount is forcibly reduced and the combustion of the incinerated material is stopped, and after the end of gasification combustion and before the end of carbonization combustion, normal air amount control is continued. A gasification and incineration apparatus, comprising: 6. A primary combustion chamber into which incineration material is charged, a primary ignition device for igniting the incineration material in the primary combustion chamber,
A primary air supply device for supplying the primary combustion chamber with air necessary for thermal decomposition of the incinerated material charged into the secondary combustion chamber, and a flammable gas generated by thermal decomposition of the incinerated material in the primary combustion chamber A secondary combustion chamber for burning the gas, and a second combustion chamber for maintaining a temperature required for burning the combustible gas introduced into the secondary combustion chamber.
A gasification and incineration device having a secondary temperature maintaining device and a secondary air supply device for supplying air necessary for burning the combustible gas introduced into the secondary combustion chamber to the secondary combustion chamber, The combustion state of the primary combustion chamber 1 at the time is determined,
Control means for selectively setting a start-up process of a series of sequence operations such as a secondary combustion chamber preheating process, a gasification combustion process, and a carbonization combustion process in accordance with a combustion state. . 7. A primary combustion chamber into which incineration material is charged, a primary ignition device for igniting the incineration material in said primary combustion chamber,
A primary air supply device for supplying the primary combustion chamber with air necessary for thermal decomposition of the incinerated material charged into the secondary combustion chamber, and a flammable gas generated by thermal decomposition of the incinerated material in the primary combustion chamber A secondary combustion chamber for burning the gas, and a second combustion chamber for maintaining a temperature required for burning the combustible gas introduced into the secondary combustion chamber.
Operation control method of a gasification and incineration device having a secondary temperature maintaining device and a secondary air supply device for supplying air required for combustible gas introduced into the secondary combustion chamber to the secondary combustion chamber In the above, a room temperature of the secondary combustion chamber is detected by a secondary temperature detector, and a time change rate of the room temperature of the secondary combustion chamber detected by the secondary temperature detector is calculated. 2
An operation control method for a gasification and incineration device, characterized by forcibly increasing the amount of secondary air supplied by the secondary air supply device when the time change rate of the room temperature of the next combustion chamber is equal to or less than a predetermined value. 8. A primary combustion chamber into which the incineration material is charged, a primary ignition device for igniting the incineration material in the primary combustion chamber,
A primary air supply device for supplying the primary combustion chamber with air necessary for thermal decomposition of the incinerated material charged into the secondary combustion chamber, and a flammable gas generated by thermal decomposition of the incinerated material in the primary combustion chamber A secondary combustion chamber for burning the gas, and a second combustion chamber for maintaining a temperature required for burning the combustible gas introduced into the secondary combustion chamber.
Operation control method of a gasification and incineration device having a secondary temperature maintaining device and a secondary air supply device for supplying air required for combustible gas introduced into the secondary combustion chamber to the secondary combustion chamber In the above, the primary temperature detector detects the room temperature of the primary combustion chamber, and calculates the time change rate of the room temperature of the primary combustion chamber detected by the primary temperature detector. An operation control method for a gasification and incineration device, characterized by forcibly reducing the amount of primary air supplied by the primary air supply device when the time change rate of the room temperature of the secondary combustion chamber is equal to or more than a predetermined value. 9. A primary combustion chamber into which incineration material is charged, a primary ignition device for igniting the incineration material in the primary combustion chamber,
A primary air supply device for supplying the primary combustion chamber with air necessary for thermal decomposition of the incinerated material charged into the secondary combustion chamber, and a flammable gas generated by thermal decomposition of the incinerated material in the primary combustion chamber A secondary combustion chamber for burning the gas, and a second combustion chamber for maintaining a temperature required for burning the combustible gas introduced into the secondary combustion chamber.
Operation control method of a gasification and incineration device having a secondary temperature maintaining device and a secondary air supply device for supplying air required for combustible gas introduced into the secondary combustion chamber to the secondary combustion chamber In the above, the pressure detector detects the indoor pressure of the primary combustion chamber, calculates the time change rate of the indoor pressure of the primary combustion chamber detected by the pressure detector, and calculates the calculated primary combustion chamber. An operation control method for the gasification and incineration device, wherein the primary air supply amount by the primary air supply device is forcibly reduced when the time change rate of the indoor pressure is equal to or more than a predetermined value. 10. A primary combustion chamber into which incineration material is charged, a primary ignition device for igniting the incineration material in the primary combustion chamber,
A primary air supply device for supplying air required for the thermal decomposition of the incineration material injected into the primary combustion chamber to the primary combustion chamber;
A secondary combustion chamber for burning combustible gas generated by thermal decomposition of the incinerated material in the secondary combustion chamber, and for maintaining a temperature required for burning the combustible gas introduced into the secondary combustion chamber. Operation control of a gasification and incineration device having a secondary temperature maintaining device and a secondary air supply device for supplying air required for burning the combustible gas introduced into the secondary combustion chamber to the secondary combustion chamber. In the method, a room temperature of the secondary combustion chamber is detected by a secondary temperature detector, and if the room temperature of the secondary combustion chamber detected by the secondary temperature detector is equal to or higher than a predetermined value, the secondary temperature is detected. A method for controlling operation of a gasification and incineration device, comprising forcibly increasing the amount of secondary air supplied by an air supply device. 11. A primary combustion chamber into which incineration material is charged, a primary ignition device for igniting the incineration material in the primary combustion chamber,
A primary air supply device for supplying air required for the thermal decomposition of the incineration material injected into the primary combustion chamber to the primary combustion chamber;
A secondary combustion chamber for burning combustible gas generated by thermal decomposition of the incinerated material in the secondary combustion chamber, and for maintaining a temperature required for burning the combustible gas introduced into the secondary combustion chamber. Operation control of a gasification and incineration device having a secondary temperature maintaining device and a secondary air supply device for supplying air required for burning the combustible gas introduced into the secondary combustion chamber to the secondary combustion chamber. In the method, a failure of the secondary temperature maintenance device is detected by failure detection means, and a failure of the secondary temperature maintenance device is detected by the failure detection means in a secondary combustion chamber preheating process before ignition of the primary ignition device. If this is the case, an abnormal alarm is output.
An operation control method for a gasification and incineration apparatus, characterized in that normal air amount control is continued after the end of gasification combustion and before the end of carbonization combustion. 12. A primary combustion chamber into which the incineration material is charged, a primary ignition device for igniting the incineration material in the primary combustion chamber,
A primary air supply device for supplying air required for the thermal decomposition of the incineration material injected into the primary combustion chamber to the primary combustion chamber;
A secondary combustion chamber for burning combustible gas generated by thermal decomposition of the incinerated material in the secondary combustion chamber, and for maintaining a temperature required for burning the combustible gas introduced into the secondary combustion chamber. Operation control of a gasification and incineration device having a secondary temperature maintaining device and a secondary air supply device for supplying air required for burning the combustible gas introduced into the secondary combustion chamber to the secondary combustion chamber. In the method, the combustion state of the primary combustion chamber 1 at the start of operation is determined,
An operation control method for a gasification and incineration apparatus, wherein a start-up process of a series of sequence operations such as a secondary combustion chamber preheating process, a gasification combustion process, and a carbonization combustion process is selectively set according to a combustion state.