TWM517295U - Burning control system with improved boiler steam yield stability of incinerator - Google Patents

Description

Combustion control system with enhanced steam production stability of incinerator boiler

This creation is about a combustion control system with improved steam production stability of the incinerator boiler. The improved feeder and hearth actuation mode, combined with the newly developed fire line judger, combined steam output and steam production slope change, exhaust gas Parameters such as oxygen content and temperature of the secondary combustion chamber automatically adjust the operation and waiting time of the garbage feeder and the hearth, as well as the air volume and distribution of the combustion air, thereby slowing the instability of the garbage feed and improving the furnace. The thickness of the garbage layer in the position of the fire line on the bed is greatly increased, and the combustion effect and steam stability are greatly improved.

With the daily life of the general public and the operation of the manufacturing industry, all kinds of garbage or waste are produced all the time. If not properly handled, it will lead to serious public health and safety problems, such as air pollution, water pollution, and even pollution of crops and drinking. water. Therefore, how to effectively dispose of garbage or waste has always been an important issue in modern society, especially to prevent secondary pollution.

In general, sanitary burial is the most common method of waste disposal. It only needs to use a piece of land as a landfill and construct a proper containment structure to prevent pollution of groundwater, as well as waste water and biogas discharge facilities. Cover the garbage and achieve the effect of sanitary burial. However, in recent years, with the difficulty in obtaining land and the opposition and resistance of nearby residents, it is more economical, feasible and efficient to use high-temperature incinerators to burn garbage, because only small land is needed to build closed type. The incineration plant can be used, and it has the advantages of reducing waste, avoiding bacteria and emitting odor. Especially in metropolitan areas, incineration plants have been widely used to solve recurring garbage.

In addition, the garbage can generate additional heat during high-temperature combustion, which can be used to provide power generation, heating, or a heated swimming pool, thereby improving energy efficiency and reducing part of the operating costs of the incineration plant. Although most of the waste will be converted into charcoal during high temperature combustion. Ash, water vapor, carbon dioxide, and then directly discharged into the atmosphere through appropriate dust collection, but still produce harmful nitrogen oxides, sulfur oxides, carbon monoxide and other gases, as well as solid ash that cannot be burned and decomposed, need to use exhaust gas treatment Equipment to remove harmful gases and treat the solid ash in a solidified or final buried manner.

However, the disadvantage of the incinerator in the conventional technology is that the quality of the waste of the municipal waste and the commercial waste is not stable, and the conventional incinerator uses the steam flow control feeder and the start timing of the hearth to control the combustion state, and its operation Depending on whether the steam is higher than the set point to determine the feed or not, trying to obtain stable steam production, because the steam production is a backward indicator of the combustion reaction, the control method that only uses steam production as the main control factor cannot be used for the change of the nature of the garbage. Instantly and effectively suppress the unstable quality of the garbage. For example, when the steam volume is too high, the system will stop feeding, and when the steam production is insufficient, the feed will continue. However, after the feed is stopped for a period of time, when the waste on the hearth is exhausted, the steam will suddenly drop rapidly. Otherwise, the push for a period of time may cause the steam output to increase rapidly due to over-feeding, resulting in system instability. Sexuality may also cause problems such as the amount of garbage feed does not match, the thickness of the waste layer on the hearth, and the position of the fire line.

In addition, when a low-calorie waste is suddenly encountered, the steam production is low due to the need of a long drying time. At this time, the feed needs to be slowed down so that the garbage can be fully burned, but the conventional technology judges that Insufficient feed and accelerated feed, resulting in loss of control of automatic control. Another example is when a large amount of garbage starts to burn intensely, sometimes the fire line is too close to the feeding end, indicating that the amount of garbage is about to be insufficient. At this time, it should be fed, but the conventional technology will judge that the excessive combustion needs to reduce the feed, so that the combustion The situation and steam production are unstable. Since the conventional technology cannot judge the position of the fire line and the condition of the garbage (such as the specific gravity), the conventional technology can not automatically generate an alarm and immediately take necessary control measures, especially when the feeder is activated, in the event of sudden increase or sudden drop in steam production. When the abnormality makes the garbage unable to enter the hearth, it can not automatically generate alarms and perform control. After missing the control point of the first time, the steam output will fluctuate up and down, which will seriously affect the overall operation and control of the incinerator, and even lead to The risk of shutting down or jumping. Moreover, these unstable combustion conditions and steam production are very heavy workload and psychological pressure for equipment and operators, and it is easy to cause human inadvertent disasters.

Therefore, there is a great need for a new type of steam incinerator boiler with stable steam production stability. The combustion control system achieves a better combustion effect and steam stability, thereby solving the problems of the above-mentioned conventional technology.

The main purpose of this creation is to provide a combustion control system with improved steam production stability of the incinerator boiler, including fire line judger, feeder, hearth, ash roller, ashing mechanism, fan unit, bellows, screen ash Mechanism, secondary combustion chamber, water pipe wall, steam drum, superheated pipe row, exhaust gas exhaust section and central control unit for continuously controlling and burning waste, generating steam production (steam production), driving turbine steam engine The generator is used to generate electricity and generate electricity.

The hopper can accommodate waste, and the feeder is located below the hopper, can input and feed waste, and the hearth is connected to the feeder, and has an inclined surface, which can carry and stir, dry, incinerate and propel Waste from the feeder. The ash roller is connected to the tail end of the hearth to remove the ash from the incineration.

In order to increase the stability of the garbage feed, the operation of the feeder and the hearth is changed to continuous operation, and the upper and lower limits of steam production are used as the basis for starting the feeder and the hearth (batch feed). . In addition to the steam flow control, the adjustment of the operating speed takes into account the parameters such as the steam flow rate change rate, the position of the hot line, the temperature of the secondary combustion chamber, and the oxygen content measured by the oxygen detector to adjust the feeder and The hearth is operated at a speed. Due to the speed limitation of the operating characteristics of the hearth and the feeding machine, when the system planning speed is lower than the lower limit of the equipment limit, the creation will automatically be assisted by the time controller, when the feeder and the hearth are finished every turn. After that, the time controller will start, and the feeder and the hearth will be suspended for a period of time before continuing.

The fan unit comprises a primary fan and a secondary fan, wherein the primary fan can inject external normal temperature air into the air preheater, and after preheating, generates preheated air and injects into the bellows under the hearth, and passes through the bellows. The orifice is blended into the air volume injected into different parts of the hearth to make the waste dry and burn and cool the burnt ash, and the secondary fan can directly inject the external normal temperature air into the secondary combustion located on the hearth. The chamber generates a turbulent flow of the exhaust gas, strengthens the mixing of the exhaust gas and the combustion air, completely burns the exhaust gas, reduces the pollutant discharge amount, and adjusts the temperature of the secondary combustion chamber.

The ashing mechanism located below the ash roller collects and cools and removes ash from the hearth, and the secondary combustion chamber is configured with at least two thermometers to measure the temperature of the secondary combustion chamber. screen The ash mechanism is located below the hearth, and collects the particulate matter dropped by the gap of the hearth after the waste is burned, and the bottom tube row is located below the ashing mechanism, and is connected to the ashing mechanism at a downward inclination angle. The particulate matter is received and transferred to the ashing mechanism by gravity.

The water pipe wall contains liquid water, which is located in the secondary combustion chamber and can absorb the waste heat of the secondary combustion chamber, so that the liquid water in the water pipe wall generates saturated steam due to evaporation. The steam drum is connected to the water pipe wall and is located above the secondary combustion chamber to accommodate the saturated steam generated by the water pipe wall. The superheated tube row is connected to the steam drum, which can generate superheated steam after the saturated steam is heated by the hot section boiler. The turbo steam engine is connected to the superheated pipe row and receives the steam production amount to drive the generator, and generates electricity after power generation.

The exhaust gas exhaust section is connected to the boiler to discharge exhaust gas generated by the waste, and the exhaust gas exhaust section is provided with an oxygen detector for measuring the oxygen content of the exhaust gas in the exhaust gas exhaust section.

The firewire segmenter includes a hearth monitor, a layer thickness monitor, and a firewire analysis unit. The fire line analysis unit uses the principle of chromatic aberration to analyze the monitor picture, and burns the flame segment, which is brighter on the monitor screen, while the burned ash section is relatively dim. The boundary line in the picture is the position of the line of fire (burning the knot). However, the position of the 2D fire line taken by the monitor still needs to be combined with the measured value of the layer thickness monitor to convert to the 3D fire line position, so as to accurately determine the position where the garbage is burned inside the hearth (and the position of the fire line). The central control unit is provided to judge the nature of the garbage according to the position of the fire line to moderately adjust the feeder, the operating cycle of the hearth, and the air supply volume and ratio of the combustion air. In order to ensure the accuracy of the fire line judgment, the angle between the monitor and the hearth must be maintained greater than 20°.

The central control unit receives and determines the garbage combustion condition according to the fire line judging device and the steam change rate, combines the temperature of the secondary combustion chamber and the oxygen content measured by the oxygen detector, and cooperates with the steam production amount to control the primary fan and the second The individual air volume and relative proportion of the secondary fan, while controlling the length of the feeder and the operating cycle of the hearth to control the amount of waste feed, so that the steam output of the boiler and the power generation of the generator can be matched with the waste at any time. The calorific value is dynamically adjusted and remains stable.

This creation can use the program of the central control unit to control the overall waste combustion treatment in a continuous feeding mode, and discard the previous use of the upper and lower limits of steam production as the basis for starting the feeder and the hearth (batch feed). Including adjustment and control of the feeder, hearth actuation cycle and primary fan, secondary The individual air volume and relative proportion of the fan dynamically adjust and maintain the stability of the overall steam production and power generation, reduce the workload of the operator, avoid human negligence, improve the operational stability of the overall control system, and reduce the amount of waste feed. The instability is offset from the thickness of the waste bed on the hearth and the location of the line of fire.

1‧‧‧ hopper

2‧‧‧ feeder

3‧‧‧ hearth

4‧‧‧dry section

5‧‧‧burning section

6‧‧‧ after combustion section

7‧‧‧ ash roller

8‧‧‧ashing agency

9‧‧‧Fan unit

11‧‧‧One fan

12‧‧‧Air preheater

13‧‧‧ bellows

13A‧‧‧口口

15‧‧‧Screening agency

16‧‧‧ bottom tube row

17‧‧‧ secondary fan

18‧‧‧ secondary combustion chamber

18A‧‧‧口口

19‧‧‧Water pipe wall

22‧‧‧ 汽鼓

23‧‧‧Superheated tube row

24‧‧‧Exhaust exhaust section

25‧‧‧Central Control Unit

26‧‧‧FireWire Judgment

G‧‧‧Generator

GS‧‧‧Oxygen detector

MT‧‧‧ monitor

PV‧‧‧ steam production

PD‧‧‧ hearth pressure difference

T‧‧‧Steam Steam Engine

TH‧‧‧ thermometer

WD‧‧‧ furnace window

The first figure is a schematic diagram of a combustion control system with improved steam production stability of an incinerator boiler in accordance with the present embodiment.

The implementation of the present invention will be described in more detail below with reference to the drawings and component symbols, so that those skilled in the art can implement the present specification after studying the present specification.

Referring to the first figure, the present embodiment has a schematic diagram of a combustion control system for improving the steam production stability of an incinerator boiler. As shown in the first figure, the combustion control system with the steam production stability of the incinerator boiler of the present invention mainly includes a hopper 1, a feeder 2, a hearth 3, a ash roller 7, and an ash discharging mechanism. , the fan unit 9, the wind box 13, the ashing mechanism 15, the bottom tube row 16, the secondary combustion chamber 18, the water pipe wall 19, the steam drum 22, the superheating pipe row 23, the exhaust gas exhaust section 24, the central control unit 25, and The fire line determiner 26, wherein the central control unit 25 can continuously control and burn the waste W to generate steam production, hereinafter referred to as the steam production amount PV, and then use the steam generation amount PV to drive the turbine steam engine T, so that the generator G generates electricity. Power generation.

Specifically, the hopper 1 can accommodate the waste W, and the feeder 2 is connected to the hopper 1 and located below the hopper 1, and the waste W contained in the hopper 1 is fed and fed to the hearth 3 The feeder is operated continuously, and the adjustment of the actuation speed is controlled by the steam flow, taking into account the steam flow rate of change, the position of the line of fire, the temperature of the secondary combustion chamber, and the oxygen content measured by the oxygen detector. Such as the comprehensive consideration of parameters. Since the feed mechanical actuation characteristic itself has a speed limit, when the system planning speed is lower than the equipment limit limit, the creation will automatically be assisted by the time controller. When the feeder is finished every turn, the time controller will Start, pause the feeder for a period of time, and then continue to move.

The hearth 3 is connected to the feeder 2 and has an inclined surface for carrying and stirring, drying, incinerating, and advancing the waste W from the feeder 2. The hearth 3 comprises a drying section 4, a combustion section 5 and a post-combustion section 6 which are sequentially connected, wherein the drying section 4 is connected to the feeder 2, and the waste W is sequentially The drying section 4, the combustion section 5, and the post-combustion section 6 are slid, whereby drying, combustion, and post-combustion treatment are separately performed. The operation of the hearth allows the waste W on the hearth 3 to slide obliquely downward. The operation mode of the hearth adopts continuous operation, and the adjustment of the actuation speed is controlled by the steam flow. At the same time, the parameters such as the steam flow rate change rate, the position of the fire line, the temperature of the secondary combustion chamber and the oxygen content measured by the oxygen detector are taken into consideration. Comprehensive considerations. Since the mechanical actuation characteristics of the hearth itself have speed limitations, when the system planning speed is lower than the lower limit of the equipment limit, the creation will automatically be assisted by the time controller. When the feeder is finished every turn, the time controller will Start, pause the hearth for a period of time, and then continue to move.

The ash roller 7 is configured to connect the tail end of the hearth 3, that is, the post-combustion section 6, for removing ash from combustion.

The fan unit 9 includes a primary fan 11 and an secondary fan 17, wherein the primary fan 11 is a preheated air that injects external normal temperature air into the air preheater 12 and is heated by the preheating of the air preheater 12.

The wind box 13 is disposed below the hearth 3 and is connected to the primary fan 11. The drying section, the combustion section and the post-combustion section have at least one bellows under the hearth, and each bellows has at least one orifice 13A, which can make the primary fan The preheated air generated by the 11 can be injected into the hearth 3 through the orifice 13A of the bellows 13, and the waste W on the hearth 3 is dried and burned to generate ash, and the burned ash is cooled. The ashing mechanism 8 is located below the ash roller 7 for collecting and removing ash from the hearth 3. The secondary combustion chamber 18 is located above the hearth 3 and has at least one orifice 18A, and the orifice 18A of the secondary combustion chamber 18 is connected to the secondary fan 12, so that the secondary fan 17 passes outside the normal temperature air. The orifice 18A is injected into the secondary combustion chamber 18, and in particular, at least two thermometers TH are disposed in the secondary combustion chamber 18 for measuring the temperature of the secondary combustion chamber 18, which are two thermometers disposed at different positions. TH, the temperature distribution of the secondary combustion chamber 18 can be obtained, and an average temperature such as an arithmetic mean temperature can be obtained.

The water pipe wall 19 contains liquid water, for example, may be connected to the steam drum 22 via a line to input liquid water, and is disposed in the secondary combustion chamber 18 for absorbing waste heat generated by the waste W combustion in the secondary combustion chamber 18. The liquid water in the water pipe wall 19 is evaporated to generate saturated steam, which is then transferred to the steam drum 22 connected to the water pipe wall 19. The steam drum 22 is located above the secondary combustion chamber 18, and can accommodate the saturated steam from the water pipe wall 19, and the superheating pipe row 23 is connected to the steam drum 22, so that the steam drum 22 is connected The saturated steam received by the steam drum 22 can be heated by the superheater to generate a steam generation amount PV. Further, the turbo steam engine T is connected to the superheat section pipe row 23, and receives the steam generation amount PV to drive the generator G so that the generator G generates electricity to generate a power generation amount.

The ashing mechanism 15 is located below the hearth 3 for collecting the residue of the waste W after combustion, and the bottom tube row 16 is located below the ashing mechanism 15 and connected to the ashing mechanism 8 at a downward inclination angle. The particulate matter from the ashing mechanism 15 can be received and transferred to the ashing mechanism 8 by gravity.

In addition, the exhaust gas exhaust section 24 is connected to the secondary combustion chamber 18 for discharging the exhaust gas generated by the waste W, and an oxygen detector GS is disposed in the exhaust gas exhaust section 24 for measuring the exhaust gas exhaust section 24. The oxygen content of the exhaust gas.

The fire line determiner 26 receives the screen of the in-furnace monitor MT and the primary air pressure drop PD of each bellows at the bottom of the hearth to determine the position of the live line on the hearth to confirm the combustion condition in the furnace and transmit the information to the central control unit 25 .

In particular, the central control unit 25 receives the information of the live line returned by the line determiner 26 and the rate of change in the amount of steam produced to evaluate the combustion condition in the furnace, and based on the temperature of the secondary combustion chamber 18 and the oxygen content of the exhaust gas in the exhaust section 24 of the exhaust gas, and The steam production amount PV is used to control the individual air volume of the primary fan 11 and the secondary fan 17 and the relative proportion of the individual air volume, and further control the feed cycle time of the waste W of the feeder 2 and the drying section 4 and the combustion section 5 The operating cycle time of the 6-bed of the post-combustion section makes the PV generation capacity of the steam generation and the generator can be dynamically adjusted to maintain the stability of the overall operation with the heat value of the waste W, that is, the power generation amount is not due to The heat value of the waste W is excessively high or too low and fluctuates drastically, and can be achieved by adjusting the amount of the waste W to be fed or appropriately controlling the individual air volumes of the primary fan 11 and the secondary fan 17.

For example, the system calculates the operating speed of the feeder 2 and the hearths 4, 5, and 6 and the air volume of the primary fan 11 and the secondary fan 17 based on the set steam output. When the water content of the waste W is too high and the calorific value is too low, the temperature of the secondary combustion chamber 18 is lowered, and the oxygen content of the exhaust gas in the exhaust gas exhaust section 24 becomes high, and the combustion rate is lowered to cause steam generation. When the amount PV drops below the set value, the overall power generation amount is reduced. Therefore, by increasing the air volume of the fan 11, the amount of preheated air can be increased and the amount of oxygen can be increased to increase the combustion of the waste W, thereby maintaining the gas production. Stability of PV and power generation. At the same time, the air volume of the secondary fan 17 is reduced to maintain the secondary combustion chamber. Furnace temperature. The operating speed of the feeder 2 and the hearths 4, 5, 6 is increased to accelerate the feeding. At this time, when the flame determiner 26 detects that the live line position is retreating and the central control unit calculates that the steam generation rate slope changes abnormally, it indicates that the garbage is too wet, and a long warm-up time is required, and the feeder 2 and the hearth 4 are lowered at this time. The operating speed of 5, 6 is adjusted until the slope of the steam generation rate changes normally, and then the set speed of the feeder 2 and the hearth 4 is adjusted back.

The above-mentioned central control unit 25 can be implemented by a computer or a server, and thus the operation of the central control unit 25 can be achieved by a software program.

In addition, in order to facilitate the on-site operator or monitor to directly observe the combustion state or cumulative amount of the waste W on the hearth 3 at any time, the present invention further includes a furnace front window WD disposed adjacent to the hearth 3, preferably near After combustion section 6. Furthermore, the creation may also include a monitor MT disposed adjacent to the afterburning section 6 of the hearth 3 to provide waste near the remote monitoring or remote viewing hearth 3 and a line of fire determiner 26 to determine the location of the line of fire.

In summary, the feature of this creation is that the program of the central control unit can be used to control the overall combustion process, especially the central control unit can judge the garbage combustion condition and combine the secondary combustion chamber according to the fire line determiner and the steam change rate. Temperature and the oxygen content of the exhaust gas in the exhaust section of the exhaust gas, and in combination with the steam production and the power generation of the generator, the waste feed cycle time of the feeder, the cycle time of the hearth and the primary fan and the secondary fan are instantly controlled. The individual air volume and relative proportion of the fan enable the steam production and power generation to be dynamically adjusted to meet the heat value of the waste and maintain the stability of the overall operation, and reduce the workload of the operator and avoid human negligence.

In addition, the central control unit of the creation can control the points such as the waste value of the feeder, the waste heat of the hearth, the position of the fire line, the oxygen concentration of the boiler outlet, and the steam production, so as to perform the real-time calculation and control the location of the fire line. Point, for feeder and hearth control. It is also possible to refer to the amount of steam produced and the slope of the change to determine the timing of the furnace (increased steam production), automatically generate an alarm and automatically suppress the continuous occurrence of the furnace by program control. Alternatively, the steam production amount and the change slope can be further referred to, and the time when the waste does not enter the hearth is determined, an alarm is generated, and the automatic improvement of the waste does not enter the hearth by program control.

The above description is only for the purpose of explaining the preferred embodiment of the present invention, and is not intended to impose any form of limitation on the creation, so that any modification or alteration of the creation made in the same creative spirit is provided. , should still be included in the scope of protection of this creative intent.

1‧‧‧ hopper

2‧‧‧ feeder

3‧‧‧ hearth

4‧‧‧dry section

5‧‧‧burning section

6‧‧‧ after combustion section

7‧‧‧ ash roller

8‧‧‧ashing agency

11‧‧‧One fan

12‧‧‧Air preheater

13‧‧‧ bellows

13A‧‧‧口口

15‧‧‧Screening agency

16‧‧‧ bottom tube row

17‧‧‧ secondary fan

18‧‧‧ secondary combustion chamber

18A‧‧‧口口

19‧‧‧Water pipe wall

22‧‧‧ 汽鼓

23‧‧‧Superheated tube row

24‧‧‧Exhaust exhaust section

25‧‧‧Central Control Unit

26‧‧‧FireWire Judgment

G‧‧‧Generator

GS‧‧‧Oxygen detector

MT‧‧‧ monitor

PV‧‧‧ steam production

PD‧‧‧ hearth pressure drop

T‧‧‧Steam Steam Engine

TH‧‧‧ thermometer

WD‧‧‧ furnace window

Claims (5)

A combustion control system with improved steam production stability of an incinerator boiler, combined with information on the fire line determiner and steam flow rate, steam flow rate change rate, temperature of the secondary combustion chamber, and oxygen content measured by the oxygen detector Adjusting the operating speed and waiting time of the feeder and the hearth, and using the fire line judger and the change of the slope of the steam production to judge the special condition of the combustion in the hearth, thereby continuously controlling and treating the waste to achieve the steam stabilization effect. The combustion control system with enhanced steam production stability of the incinerator boiler includes: a hopper for accommodating the waste; a feeder connected to the hopper and located below the hopper for input The waste is continuously operated, and the operating speed is adjusted by the information of the position of the hot line, the steam flow rate, the rate of change of the steam flow rate, the temperature of the secondary combustion chamber, and the oxygen content measured by the oxygen detector, and because of the feeding mechanism. The actuation characteristic itself has a speed limit. When the system planning speed is lower than the equipment limit limit, it will automatically be assisted by the time controller. And when the feeder is finished every turn, the time controller will start, suspend the feeder for a period of time, and then continue to operate; a hearth is connected to the feeder and has an inclined surface for carrying and Burning waste from the feeder; cyclically actuating, the operating cycle is adjusted by information such as the location of the hot line, the steam flow rate, the rate of change of the steam flow, the temperature of the secondary combustion chamber, and the oxygen content measured by the oxygen detector. Since the mechanical behavior of the hearth itself has a speed limit, when the system planning speed is lower than the lower limit of the equipment limit, it will automatically be assisted by the time controller. When the hearth is finished every turn, the time controller will start and pause. After the hearth is operated for a period of time, the operation is continued; a ash roller is connected to the tail end of the hearth to move the waste; a fan unit includes a primary fan and a secondary fan, the primary fan External external temperature The air is injected into an air preheater to generate preheated air by preheating; a bellows is located below the bottom surface of the hearth, and is connected to the primary fan, and has at least one orifice, so that the primary fan is The generated preheated air is injected into the hearth through the orifice of the wind box, so that the waste is burned to generate ash; an ashing mechanism is located below the ash roller for collecting and moving In addition to the ash from the hearth; a secondary combustion chamber is located above the hearth and has at least one orifice, and at least two thermometers are arranged to measure the temperature of the secondary combustion chamber, and the second The orifice of the combustion chamber is connected to the secondary fan, so that the secondary fan injects external normal temperature air into the secondary combustion chamber through the orifice of the secondary combustion chamber; a water pipe wall containing liquid water and located The secondary combustion chamber is configured to absorb waste heat of the secondary combustion chamber to generate saturated steam in the liquid water in the water pipe wall; a steam drum connected to the water pipe wall and located above the secondary combustion chamber for receiving Set up the water pipe wall a superheated pipe row connected to the steam drum for generating a steam output by superheating the saturated steam through the waste heat of the secondary combustion chamber; a turbo steam engine connecting the superheated pipe row and receiving The steam production amount drives a generator to generate a power generation amount; a sieve ashing mechanism is located below the hearth to collect the particulate matter after the waste is burned; and a bottom pipe row is located at the sieve ashing mechanism Bottom, and connected to the ashing mechanism at a downward inclination angle for receiving the particulate matter and transferring the gravity to the ash discharging mechanism; an exhaust gas exhausting section connecting the secondary combustion chamber for discharging the waste Exhaust gas produced by the object, and The exhaust gas exhaust section is provided with an oxygen detector for measuring the oxygen content of the exhaust gas in the exhaust section of the exhaust gas; a fire line judging device receives and according to the combustion picture returned by the hearth camera, the color difference principle is used to analyze the monitor screen The burning flame segment is brighter on the monitoring screen, while the burned ash segment is relatively dim. The boundary line in the picture is the position of the fire line, indicating the burning of the junction, and then using the hearth to reduce the pressure and furnace. The bed size and other information calculations, the two-dimensional (2D) judgment of the location of the live line on the hearth is calculated as the three-dimensional (3D) actual line position, and combined with the change in the slope of the steam production to determine the special conditions of combustion in the hearth, such as garbage over-wet, In order to ensure the accuracy of the system judgment, the angle between the hearth camera and the hearth is maintained above 20°; and a central control unit, the central control unit adopts continuous control of the feed cycle mode control to ensure the accuracy of the system judgment. And burn the waste, and judge the combustion according to the steam output and the slope of the steam production, the position of the fire line, the oxygen content in the exhaust gas, and the temperature of the secondary combustion chamber. Case, an optimum adjustment of the feeder of the feed and actuation cycle time of the hearth, one individual fan unit and the secondary fan and relative proportions. A combustion control system for improving the steam production stability of an incinerator boiler according to the first aspect of the patent application, wherein the hearth comprises a drying section, a combustion section and a post-combustion section sequentially connected, the drying section joining the inlet a hopper, the post-combustion section joining the ash slag roller, and the waste slips through the drying section, the combustion section, and the post-firing section. A combustion control system for improving the steam production stability of an incinerator boiler according to the first aspect of the patent application, wherein the central control unit is realized by a computer or a server. A combustion control system for improving the steam production stability of an incinerator boiler according to item 2 of the patent application scope, further comprising a furnace front window disposed in a rear combustion section adjacent to the hearth for providing direct observation of the hearth Waste. A combustion control system for improving the steam production stability of an incinerator boiler according to the fourth aspect of the patent application, further comprising a monitor and a fire line judging device disposed in a rear combustion section adjacent to the hearth for monitoring the furnace Waste on the bed.