阅读说明：本技术 一种垃圾焚烧炉酸性气体稳定生成的控制方法及装置 (Control method and device for stable generation of acid gas of garbage incinerator ) 是由 张庚 方朝君 孙宝仁 梁俊杰 赵宁波 陈嵩涛 于 2021-08-10 设计创作，主要内容包括：本发明涉及一种垃圾焚烧炉酸性气体稳定生成的控制方法及装置,控制方法包括以下步骤：S1、设置多个垃圾存储区,每个垃圾存储区用于存放预设硫元素含量区间的垃圾；S2、检测垃圾中的硫元素含量,并将其投入对应存放该硫元素含量区间垃圾的垃圾存储区；S3、将每一个垃圾存储区内预设重量Q-(i)的垃圾输送至垃圾焚烧炉内。本发明提供的垃圾焚烧炉酸性气体稳定生成的控制方法,通过设置多个垃圾存储区对垃圾按照硫含量分类存储,再按比例抓取各个垃圾存储区内垃圾至垃圾焚烧炉燃烧,可控制进入垃圾焚烧炉的垃圾中硫元素含量稳定,以控制酸性气体生成量,进而稳定脱酸剂耗量,可以确保脱酸塔稳定运行,避免频繁调整和控制滞后。(The invention relates to a control method and a device for stably generating acid gas of a garbage incinerator, wherein the control method comprises the following steps: s1, setting a plurality of garbage storage areas, wherein each garbage storage area is used for storing garbage in a preset sulfur element content interval; s2, detecting the sulfur content in the garbage, and putting the garbage into a garbage storage area corresponding to the garbage with the sulfur content interval; s3, presetting weight Q in each garbage storage area i Is transported to the garbageA refuse incinerator. According to the control method for stable generation of the acid gas of the garbage incinerator, the garbage is classified and stored according to the sulfur content by arranging the plurality of garbage storage areas, and then the garbage in each garbage storage area is captured in proportion to be combusted in the garbage incinerator, so that the content of sulfur elements in the garbage entering the garbage incinerator can be controlled to be stable, the generation amount of the acid gas is controlled, the consumption amount of a deacidification agent is further stabilized, the stable operation of the deacidification tower can be ensured, and frequent adjustment and control lag are avoided.)

1. A control method for stable generation of acid gas of a garbage incinerator is characterized by comprising the following steps: the method comprises the following steps:

s1, setting a plurality of garbage storage areas, wherein each garbage storage area is used for storing garbage in a preset sulfur element content interval;

s2, detecting the sulfur content in the garbage, and putting the garbage into a garbage storage area corresponding to the garbage with the sulfur content interval;

s3, presetting weight Q in each garbage storage area_iThe garbage is conveyed into a garbage incinerator with preset weight Q_iThe garbage of (a) is obtained by the following formula:

wherein M is_iFor the weight of refuse in each refuse storage area, M_sQ is the total weight of the garbage in all the garbage storage areas, and the furnace inlet weight flow is designed for the garbage incinerator.

2. The method for controlling stable generation of acid gas in a garbage incinerator according to claim 1, wherein: in the step S2, the laser induced breakdown spectrometer is used to detect the content of sulfur in the garbage, the laser induced breakdown spectrometer sends the detection data to the controller, and the controller sends a classification instruction after determining that the sulfur in the garbage belongs to the corresponding sulfur content range, and controls the grasping component to grasp the garbage to the corresponding garbage storage area.

3. The method for controlling stable generation of acid gas in a garbage incinerator according to claim 1, wherein: the method further comprises the following steps:

s4, detecting SO in flue gas discharge port of garbage incinerator in real time₂Gas concentration according to SO₂The gas concentration value regulates the input amount of the deacidification agent.

4. The method for controlling stable generation of acid gas in a garbage incinerator according to claim 1, wherein: the number of the garbage storage areas is 2-5.

5. The method for controlling stable generation of acid gas in a garbage incinerator according to claim 1, wherein: each garbage storage area is used for storing garbage with different sulfur element content intervals.

6. The method for controlling stable generation of acid gas in a garbage incinerator according to claim 1 or 5, wherein: the sulfur element content interval is divided into the sulfur element content of more than 0.6 percent and the sulfur element content of less than or equal to 0.6 percent.

7. The method for controlling stable generation of acid gas in a garbage incinerator according to claim 6, wherein: the garbage storage area comprises a first storage area and a second storage area, and weight Q is preset in the first storage area₄Garbage and preset weight Q in the second storage area₅The garbage is obtained by the following formula:

wherein M is₄Is the weight of the garbage in the first storage area, M₅Q is the weight of the garbage in the second storage area, and q is the designed charging weight flow of the garbage incinerator.

8. The method for controlling stable generation of acid gas in a garbage incinerator according to claim 6, wherein: the interval division of the sulfur element content comprises the sulfur element content of more than 1.2 percent, the sulfur element content of 0.6-1.2 percent and the sulfur element content of less than 0.6 percent.

9. The method for controlling stable generation of acid gas in a garbage incinerator according to claim 8, wherein: the garbage storage area comprises a first storage area, a second storage area and a third storage area, wherein the first storage area is internally preset with a weight Q₁The second storage area is internally provided with a preset weight Q₂Garbage, preset weight Q in the third storage area₃The garbage is obtained by the following formula:

wherein M is₁Is the weight of the garbage in the first storage area, M₂Is the weight of the garbage in the second storage area, M₃Q is the weight of the garbage in the third storage area, and the furnace inlet weight flow is designed for the garbage incinerator.

10. An apparatus for implementing a method for controlling stable generation of acid gas of a garbage incinerator according to any one of claims 1 to 9, characterized in that: the device includes:

a detection table: which is used for placing the garbage to be detected;

a garbage storage area: the garbage storage device is used for storing garbage with a preset sulfur element content interval;

laser-induced breakdown spectroscopy: the detection platform is used for detecting the content of sulfur elements in the garbage on the detection platform and sending a detection result;

a controller: the system is used for receiving a detection result sent by the laser-induced breakdown spectrometer, judging a sulfur content interval to which sulfur elements in the garbage belong according to the detection result, and sending a garbage classification instruction;

a first grasping member: the garbage classification controller is used for executing a garbage classification instruction sent by the controller, capturing the garbage and putting the garbage into a garbage storage area correspondingly conveying the garbage with the sulfur element content interval;

a second grasping member: which is used for grabbing garbage with specified weight from each garbage storage area to the garbage incinerator.

Technical Field

The invention belongs to the field of waste incinerator flue gas treatment, and particularly relates to a method and a device for controlling stable generation of acidic gas of a waste incinerator.

Background

The main treatment modes based on the current urban domestic garbage include three modes of incineration, landfill, composting and the like, because the urban scale and the population number are continuously increased and enlarged, the land resources are scarce, the number of available garbage landfill sites is continuously reduced, the volume reduction, the decrement and the harmlessness degree of garbage incineration are high, meanwhile, the heat generated in the incineration process is used for generating electricity to realize the energy regeneration of the garbage, and a plurality of domestic cities are built with garbage incineration power stations in disputes.

However, in the actual operation process of the waste incineration power station, the type of the waste entering the furnace changes, and the SO after incineration₂The amount of generated acid gas fluctuates greatly, and the deacidification control device is difficult to respond in time. The currently common adjustment mode is feedback adjustment, i.e. measuring SO at the outlet of the deacidification apparatus using an on-line CEMS analyzer₂If the measured value is higher than the set value, it indicates that the deacidification dosage is insufficient and the deacidification agent dosage needs to be added, if the measured value is lower than the set value, it indicates that the deacidification agent dosage is excessive and needs to be reduced, and then the comparison result is fed back to the deacidification deviceAnd (5) standing and adjusting the dosage of the deacidification agent. However, there are two problems in the middle, one is that the outlet section of the deacidification device is large, the measurement is inaccurate, and the time required for the process (measurement-feedback-adjustment-deacidification dosage change) is long, so that the smoke components are changed at the moment when the deacidification dosage changes, and the regulation lag occurs. At this time, if the deacidification dosage is too large, the deacidification agent is over-sprayed, and the material is wasted, and if the deacidification dosage is too small, SO discharged from a chimney is generated₂The standard is easy to exceed.

Chinese patent document CN203469751A discloses a feedforward compensation device for regulating the injection amount of a deacidification agent in the flue gas treatment of a waste incineration plant, which is characterized in that the feedforward compensation device consists of a signal measurement transmission acquisition device and a feedforward controller based on the signal measurement transmission acquisition device, two sampling ends of the signal measurement transmission acquisition device are respectively connected with a flue gas inlet and a flue gas outlet at the front end and the rear end of a flue gas distributor of a deacidification tower, a signal output end of the signal measurement transmission acquisition device is connected with the feedforward controller, and the feedforward controller is connected with a deacidification main controller for controlling the injection amount of the deacidification agent. The method measures the flow of the flue gas through the front sampling end and the rear sampling end of the deacidification tower, does not play a compensation role in normal working conditions, and performs compensation output on the change of the flow of the flue gas when the change of the flow of the flue gas entering the deacidification tower is greatly deviated from a normal value. The method aims at increasing the amount of the deacidification agent when the deacidification agent dose is not enough and the chimney is environment-friendly and exceeds the standard. Since it can only respond to the increase of the flue gas flow, if the flue gas flow is not changed and the concentration of the acid gas in the flue gas is increased, the method is ineffective, and the system can not respond when the deacidification agent is excessive.

Chinese patent document CN110292848A discloses a deacidification apparatus and method for a garbage incinerator based on CFD, the invention relates to a deacidification apparatus for a garbage incinerator based on CFD, comprising an incinerator, a heat exchange device, a deacidification apparatus, a CFD simulation unit and a PLC control unit; the flue gas generated in the incinerator enters the heat exchange device for cooling treatment, and the cooled flue gas enters the deacidification device; and the CFD simulation unit simulates and calculates the concentration of the acid gas in the flue gas of the incinerator according to the components of the garbage entering the incinerator and the garbage load, inputs the concentration of the acid gas into the PLC control unit, and controls the deacidification device to spray a deacidification agent to deacidify the flue gas through the PLC control unit. However, the waste sources of the waste incineration power stations are complex, and the component and load fluctuation is large, so that how to obtain the components of the waste entering the furnace is not given in the invention, and the invention cannot be implemented.

Chinese patent document CN110652845A discloses a feedforward control method for flue gas deacidification reaction tower of a garbage incinerator, which is characterized in that a combustion air volume detector, an incinerator temperature monitor, a deacidification reaction tower flue gas outlet acidity micromolecule detector and an in-tower lime slurry flow controller are mounted in advance, combustion air volume and incinerator temperature data are collected and transmitted to the flow controller, the controller pre-adjusts the lime slurry flow according to the air volume and the incinerator temperature data, fine adjustment is carried out on the flow lime slurry according to the acidity micromolecule detection data, and the adjustment state is maintained until the fluctuation is finished. The method presets the deacidification agent flow according to the actually measured air volume, and fine adjustment is carried out according to the actually measured acid gas concentration at the outlet of the deacidification tower.

The three patents are all passive control methods, and the garbage before entering the garbage incinerator is not subjected to pre-treatment.

Disclosure of Invention

The invention aims to provide a method and a device for controlling the stable generation of acid gas of a garbage incinerator, which can actively control the generation amount of the acid gas and further stabilize the consumption amount of a deacidification agent.

In order to achieve the purpose, the invention adopts a technical scheme that:

a control method for stable generation of acid gas of a garbage incinerator comprises the following steps:

s1, setting a plurality of garbage storage areas, wherein each garbage storage area is used for storing garbage in a preset sulfur element content interval;

s2, detecting the sulfur content in the garbage, and putting the garbage into a garbage storage area corresponding to the garbage with the sulfur content interval;

s3, mixingPresetting weight Q in each garbage storage area_iThe garbage is conveyed into a garbage incinerator with preset weight Q_iThe garbage of (a) is obtained by the following formula:

wherein M is_iFor the weight of refuse in each refuse storage area, M_sQ is the total weight of the garbage in all the garbage storage areas, and the furnace inlet weight flow is designed for the garbage incinerator.

Preferably, in step S2, the laser-induced breakdown spectrometer is used to detect the content of sulfur in the garbage, the laser-induced breakdown spectrometer sends the detection data to the controller, and the controller sends a classification instruction after determining that the sulfur in the garbage belongs to the corresponding sulfur content range, and controls the grasping component to grasp the garbage to the corresponding garbage storage area.

Preferably, the method further comprises:

s4, detecting SO in flue gas discharge port of garbage incinerator in real time₂Gas concentration according to SO₂The gas concentration value regulates the input amount of the deacidification agent.

Preferably, the garbage storage areas are provided with 2-5.

Preferably, each garbage storage area is used for storing garbage with different sulfur element content intervals.

Preferably, the sulfur element content interval is divided into a sulfur element content of more than 0.6% and a sulfur element content of less than or equal to 0.6%.

Preferably, the garbage storage area comprises a first storage area and a second storage area, and the weight Q is preset in the first storage area₄Garbage and preset weight Q in the second storage area₅The garbage is obtained by the following formula:

wherein M is₄Is the weight of the garbage in the first storage area, M₅Q is the weight of the garbage in the second storage area, and q is the designed charging weight flow of the garbage incinerator.

Preferably, the interval division of the sulfur element content comprises the sulfur element content of more than 1.2 percent, the sulfur element content of 0.6-1.2 percent and the sulfur element content of less than 0.6 percent.

Preferably, the garbage storage area comprises a first storage area, a second storage area and a third storage area, and the weight Q is preset in the first storage area₁The second storage area is internally provided with a preset weight Q₂Garbage, preset weight Q in the third storage area₃The garbage is obtained by the following formula:

wherein M is₁Is the weight of the garbage in the first storage area, M₂Is the weight of the garbage in the second storage area, M₃Q is the weight of the garbage in the third storage area, and the furnace inlet weight flow is designed for the garbage incinerator.

The other technical scheme adopted by the invention is as follows:

a device for realizing the control method of the stable generation of the acid gas of the garbage incinerator comprises

A detection table: which is used for placing the garbage to be detected;

a garbage storage area: the garbage storage device is used for storing garbage with a preset sulfur element content interval;

laser-induced breakdown spectroscopy: the detection platform is used for detecting the content of sulfur elements in the garbage on the detection platform and sending a detection result;

a controller: the garbage classification device is used for receiving a detection result sent by the laser-induced breakdown spectrometer, judging a sulfur content interval to which sulfur elements in garbage belong according to the detection result, and sending a garbage classification instruction;

a first grasping member: the garbage classification controller is used for executing a garbage classification instruction sent by the controller, capturing the garbage and putting the garbage into a garbage storage area correspondingly conveying the garbage with the sulfur element content interval;

a second grasping member: which is used for grabbing garbage with specified weight from each garbage storage area to the garbage incinerator.

Preferably, the device further comprises a plurality of conveying belts, the first grabbing part throws the grabbed garbage to the conveying belts, and the conveying belts throw the garbage to the garbage storage area.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: according to the control method for stable generation of the acid gas of the garbage incinerator, the garbage is classified and stored according to the sulfur content by arranging the plurality of garbage storage areas, and then the garbage in each garbage storage area is captured in proportion to be combusted in the garbage incinerator, so that the sulfur element content in the garbage entering the garbage incinerator can be controlled to be stable, the generation amount of the acid gas is controlled, the consumption amount of a deacidification agent is further stabilized, the stable operation of a deacidification tower can be ensured, and frequent adjustment and control lag are avoided; the invention leads the stable acid gas production to correspond to the stable deacidification agent consumption by actively controlling the acid gas production.

Drawings

FIG. 1 is a flow chart of a method for controlling the stable generation of acidic gas in a garbage incinerator according to the present invention.

Detailed Description

The invention will be further described with reference to the examples shown below.

A control method for stable generation of acid gas of a garbage incinerator comprises the following steps:

and S1, setting a plurality of garbage storage areas, wherein each garbage storage area is used for storing garbage with a preset sulfur element content interval, and each garbage storage area is preferably used for storing garbage with different sulfur element content intervals. The purpose of providing a plurality of waste storage areas is to classify the waste before it enters the waste incinerator according to the sulfur element content.

The quantity of the preset sulfur element content intervals is preferably the same as that of the garbage storage areas, the sulfur element content interval division of the real-time garbage comprises that the sulfur element content is larger than a first numerical value, the sulfur element content is smaller than or equal to the first numerical value, and the first numerical value is preferably 0.6%, namely the sulfur element content interval division comprises that the sulfur element content is larger than 0.6%, and the sulfur element content is smaller than or equal to 0.6%.

Further, the real-time garbage sulfur content interval division includes that the sulfur content is larger than a first value, the sulfur content is between the first value and a second value, the sulfur content is smaller than the second value, the first value is larger than the second value, the first value and the second value are set according to the actual garbage sulfur content, for example, the first value is 1.2%, the second value is 0.6%, namely, the sulfur content interval division includes that the sulfur content is larger than 1.2%, the sulfur content is 0.6-1.2%, and the sulfur content is smaller than 0.6%.

Preferably, the plurality of garbage storage areas are formed by arranging partition plates in the garbage storage pit at intervals, and if three garbage storage areas are arranged, three garbage storage areas are formed by arranging two partition plates in the garbage storage pit at intervals.

S2, detecting the sulfur element content in the garbage, and putting the garbage into a garbage storage area correspondingly storing the garbage in the sulfur element content interval, wherein the purpose is to convey the garbage classified according to the sulfur element to the garbage storage area correspondingly storing the garbage in the sulfur element content interval, so that the garbage can be conveniently and subsequently classified and conveyed into a garbage incinerator.

Preferably, a Laser Induced Breakdown Spectrometer (LIBS) is adopted to detect the content of sulfur in the garbage, the laser induced breakdown spectrometer sends detection data to a controller, the controller sends a classification instruction after judging that the sulfur in the garbage belongs to a corresponding sulfur content interval, and controls a grabbing component to grab the garbage to a corresponding garbage storage area, so that the garbage is classified according to the sulfur content. The weight of the garbage grabbed by the grabbing component is known, for example, the weight of the garbage grabbed by the grabbing component is certain, or the weight of the garbage grabbed to the corresponding garbage storage area each time is measured, so that the weight of the garbage in each garbage storage area is known.

LIBS is used as a new material identification and quantitative analysis technology and is widely applied to on-line detection of industrial fields. The method can be applied to multiple occasions such as heavy metal and coal quality analysis and sewage detection in soil, and the method is quick in analysis and can be used for simultaneously analyzing multiple elements and detecting almost all solid samples. The LIBS irradiates the garbage through laser pulses, and the content (%) of the S element of the real-time garbage can be obtained.

S3, presetting weight Q in each garbage storage area_iThe garbage is conveyed into a garbage incinerator with preset weight Q_iThe garbage of (a) is obtained by the following formula:

wherein M is_iFor the weight of refuse in each refuse storage area, M_sQ is the total weight of the garbage in all garbage storage areas, Q is the designed charging weight flow of the garbage incinerator, Q_iThe unit is t/h. The garbage needs to be fermented for several days in the garbage storage area, and the weight M of the garbage in the garbage storage area is measured due to the fact that the weight of the garbage grabbed by the grabbing component is measured_iIs known, then the total weight M of the garbage in all garbage storage areas_sAre known.

After the garbage is classified and stored to the corresponding garbage storage areas according to the sulfur element content interval in the step S2, the proportion of the garbage types in each involved garbage storage area is basically unchanged because the garbage source of the garbage power station is fixed, the garbage types and the occupation ratios of various types of garbage are also stable after the garbage classification, and the proportion of the garbage in each garbage storage area in the week and the proportion of the garbage in each garbage storage area in the next week are basically unchanged.

The weight flow q of the garbage entering the garbage incinerator (i.e. the weight of the garbage incinerated in one hour) is a design value and is stable. All the values participating in calculation are stable values, after the garbage is classified, the garbage types become stable, the proportion of the garbage captured to the garbage incinerator in each garbage storage area is also stable, the relation between the sulfur content of the garbage and the garbage types is large, namely the proportion of the garbage entering from each garbage storage area in the garbage incinerator to the total amount of the garbage is stable, and the consumption of the corresponding needed deacidification agent is stable.

The garbage is classified according to the sulfur content, and then the garbage in each garbage storage area is grabbed according to the weight proportion to be burnt in the garbage incinerator, SO that the sulfur element content in the garbage entering the garbage incinerator can be actively controlled to be stable, and the acid gas (SO) can be controlled₂) The amount of the produced sulfur element (the amount of sulfur element for short) and SO in the garbage entering the garbage incinerator can stabilize the consumption of the deacidification agent₂The generated amount of (A) is in direct proportion, the charging amount of sulfur is stable, and then SO₂Is stable and therefore reacts with SO₂The deacidification agent consumption of the reaction is also stable, i.e. a stable acid gas production corresponds to a stable deacidification agent consumption. When the sulfur element is removed through the deacidification agent at the flue gas discharge port of the garbage incinerator, the input amount of the deacidification agent does not need to be adjusted greatly, the stable operation of the deacidification tower can be ensured, the frequent adjustment and control lag is avoided, the deacidification agent is not wasted, and the situation that the deacidification agent is not supplemented in time to cause incomplete deacidification is avoided.

Preferably, the method further comprises:

s4, detecting SO in flue gas discharge port of garbage incinerator in real time₂Gas concentration according to SO₂The gas concentration value regulates the input amount of the deacidification agent.

Chimney discharge port pair SO₂The concentration is measured in real time, and when the measured SO is obtained₂When the concentration fluctuation is large, the concentration is fed back to the deacidification agent flow controller to finely adjust the deacidification agent.

Although the garbage is classified and then proportionally enters the garbage incinerator through the above steps S1, S2 and S3, the garbage enters the garbage incineratorThe sulfur content in the garbage of the incinerator is stable, the deacidification agent consumption is also stable and basically kept unchanged, and when the fluctuation is caused by accidental factors, namely SO₂When the concentration has large fluctuation, in order to further stabilize the consumption of the deacidification agent, SO is discharged from a chimney discharge port of the garbage incinerator₂The concentration is measured in real time and fed back to the deacidification agent flow controller, the dosage of the deacidification agent is finely adjusted, and the micro fluctuation is eliminated: such as when SO₂When the concentration exceeds the environmental protection discharge standard, the deacidification agent flow controller controls and increases the input amount of the deacidification agent; when SO₂When the concentration is basically 0, the deacidification agent flow controller controls and reduces the deacidification agent input amount, the adjustment belongs to fine adjustment, and the adjustment is only supplement after the deacidification agent consumption is stabilized by a series of previous measures.

The following embodiments 1 and 2 specifically show the cases where the number of the garbage stores is set to 2 or 3.

Example 1

Referring to the flow diagram of the control method for stable generation of acid gas in the garbage incinerator in fig. 1.

S1, setting three garbage storage areas, wherein each garbage storage area is used for storing garbage with a preset sulfur element content interval, each garbage storage area comprises a first storage area, a second storage area and a third storage area, the first storage area, the second storage area and the third storage area are used for storing garbage with different sulfur element content intervals, preferably, the division of the sulfur element content intervals comprises that the sulfur element content is more than 1.2%, the sulfur element content is 0.6-1.2%, the sulfur element content is less than 0.6%, the garbage with the sulfur element content more than 1.2% is high-sulfur garbage, the garbage with the sulfur element content of 0.6% -1.2% is medium-sulfur garbage, and the garbage with the sulfur element content less than 0.6% is low-S garbage;

s2, detecting the sulfur element content in the garbage, and putting the garbage into a garbage storage area corresponding to the garbage with the sulfur element content interval;

s3, conveying the garbage with preset weight in each garbage storage area into a garbage incinerator, and presetting weight Q in a first storage area₁Garbage and preset weight Q in the second storage area₂Garbage and preset weight in the third storage areaQuantity Q₃The garbage is obtained by the following formula:

wherein M is₁Is the weight of the garbage in the first storage area, M₂Is the weight of the garbage in the second storage area, M₃For the weight of the refuse in the third storage area, Q the designed inlet weight flow of the refuse incinerator, Q₁、Q₂、Q₃The unit is t/h.

Suppose the weight M of garbage in the first storage area₁Assume that the garbage weight M in the second storage area is 10t₂Assume that the garbage weight M in the third storage area is 30t₃When the weight flow q of the garbage incinerator is 5t/h, the garbage amount in each storage area is grabbed as follows:

if the sulfur content range of the garbage in the first storage area is more than 1.2 percent, the sulfur content range of the garbage in the second storage area is 0.6 to 1.2 percent, and the sulfur content range of the garbage in the third storage area is 0 to 0.6 percent. Assuming that the sulfur content of the garbage in the first storage area is averagely 1.8%, the sulfur content of the garbage in the second storage area is averagely 0.9%, and the sulfur content of the garbage in the third storage area is averagely 0.3%, then the sulfur element content in the garbage entering the garbage incinerator is as follows:

Q_S＝Q₁×1.8％+Q₂×0.9％+Q₃×0.3％

＝1t/h×1.8％+3t/h×0.9％+1t/h×0.3％

＝0.048t/h

that is to say, the content of sulfur in the garbage entering the garbage incinerator is 0.048t/h (the charging amount of sulfur for short), the value is not used for participating in adjustment, and the calculation process shows that the content of sulfur in the garbage entering the garbage incinerator is stable, and the related parameters are basically unchanged. The following is explained:

the garbage M in the first storage area, the second storage area and the third storage area involved in the method₁、M₂、M₃The proportion of the garbage is basically unchanged because the garbage source of the garbage power station is relatively fixed, after garbage classification, the garbage types and the occupation ratios of various types of garbage are stable, the proportion of high S garbage, medium S garbage and low S garbage is relatively stable, and the garbage proportion M in the first storage area, the second storage area and the third storage area in the week₁：M₂：M₃1:3:1, then the next week is essentially that ratio. Then Q₁：Q₂：Q₃：＝M₁：M₂：M₃The sulfur element in the garbage entering the garbage incinerator is also stable as 1:3: 1.

For the same reason, the average value of the sulfur element content in the garbage is relatively stable in each garbage storage area, 1.8%, 0.9% and 0.3% in example 1 are estimated values, and the garbage source of each garbage power station is relatively fixed, and the average value is relatively fixed, and may deviate from the value exemplified by the invention without large fluctuation.

The mass flow q of the garbage entering the garbage incinerator is a design value and is also stable.

Therefore, all values involved in the calculation are stable values, and then the waste is treated according to the sulfur contentClassifying, and controlling the weight of the garbage entering the garbage incinerator to realize the charging quantity Q of sulfur in the garbage entering the garbage incinerator_SStabilization, feed of elemental sulfur and SO₂The generated amount of (A) is in direct proportion, the charging amount of sulfur element is stable, SO₂Is stable and therefore reacts with SO₂The consumption of deacidification agent in the reaction is also stable.

In order to further stabilize the consumption of deacidification agent, SO is discharged from the chimney of the garbage incinerator₂The concentration is measured in real time and fed back to the deacidification agent flow controller, and the dosage of the deacidification agent is finely adjusted.

Example 2

S1, two garbage storage areas are set, each garbage storage area is used for storing garbage with a preset sulfur element content interval, each garbage storage area comprises a first storage area and a second storage area, the first storage area and the second storage area are used for storing garbage with different sulfur element content intervals, and preferably, the sulfur element content interval is divided into the sulfur element content intervals with the sulfur element content being more than 0.6% and the sulfur element content being less than or equal to 0.6%.

S2, detecting the sulfur element content in the garbage, and putting the garbage into a garbage storage area corresponding to the garbage with the sulfur element content interval;

s3, conveying the garbage with preset weight in each garbage storage area into a garbage incinerator, and presetting weight Q in a first storage area₄Garbage and preset weight Q in the second storage area₅The garbage is obtained by the following formula:

wherein M is₄Is the weight of the garbage in the first storage area, M₅Q is the weight of the garbage in the second storage area, and q is the designed charging weight flow of the garbage incinerator.

Suppose thatWeight M of garbage in first storage area₄Assume that the garbage weight M in the second storage area is 20t₅10t, and the weight flow q of the garbage incinerator is 5t/h, then the amount of garbage in each storage area captured by the two grab buckets is:

if the sulfur content range of the garbage in the first storage area is more than 0.6 percent, the sulfur content range of the garbage in the second storage area is less than or equal to 0.6 percent. Assuming that the sulfur content of the garbage in the first storage area is 0.8% on average, and the sulfur content of the garbage in the second storage area is 0.3% on average, the sulfur content entering the garbage incinerator at the moment is as follows:

Q_S＝q₁×0.8％+q₂×0.3％

＝2t/h×0.8％+3t/h×0.3％

＝0.025t/h

that is to say, the content of sulfur element in the garbage entering the garbage incinerator is 0.025t/h (the charging amount of sulfur element for short), the value is not used for participating in the adjustment, the calculation process shows that the content of sulfur element in the garbage entering the garbage incinerator is stable, and the related parameters are basically unchanged. The following is explained:

the garbage M in the first storage area and the second storage area involved in the method₄、M₅The proportion of the garbage is basically unchanged because the garbage source of the garbage power station is relatively fixed, the garbage types and the occupation ratios of various types of garbage are stable after garbage classification, and the garbage proportion M in the first storage area and the second storage area in the week₄：M₅2:3, then the next week is essentially that ratio. Then Q₄：Q5：＝M₄：M₅The sulfur element in the garbage entering the garbage incinerator is stable as 2: 3.

For the same reason, the average S content in the garbage is relatively stable in each garbage storage area, 0.8% and 0.3% in example 2 are estimated values, and the garbage source of each garbage power station is relatively fixed, and the average value is relatively fixed, and may deviate from the value exemplified by the present invention, but does not fluctuate greatly.

The mass flow q of the garbage entering the garbage incinerator is a design value and is also stable.

Therefore, all the values involved in the calculation are stable values, the garbage is firstly classified according to the sulfur content, and then the weight of the garbage entering the garbage incinerator is controlled to realize the charging quantity Q of the sulfur element_SAnd (4) stabilizing. Charging amount of sulfur element and SO₂The generated amount of (A) is in direct proportion, the charging amount of sulfur element is stable, SO₂Is stable and therefore reacts with SO₂The consumption of deacidification agent in the reaction is also stable.

In order to further stabilize the consumption of deacidification agent, SO is discharged from the chimney of the garbage incinerator₂The concentration is measured in real time and fed back to the deacidification agent flow controller, and the dosage of the deacidification agent is finely adjusted.

According to the control method for stable generation of the acid gas of the garbage incinerator, the garbage is classified and stored according to the sulfur content through the plurality of garbage storage areas, and then the garbage in each garbage storage area is captured in proportion to be burnt in the garbage incinerator, so that the sulfur element content in the garbage entering the garbage incinerator can be controlled to be stable, the generation amount of the acid gas is controlled, the consumption amount of a deacidification agent is further stabilized, the stable operation of a deacidification tower can be ensured, frequent adjustment and control lag are avoided, and the acid gas can be better prevented from overflowing.

The device for realizing the control method for stably generating the acid gas of the garbage incinerator shown in the figure 1 comprises a detection table, a garbage storage area, a laser induced breakdown spectrometer (LIBS for short), a controller, a first grabbing component and a second grabbing component.

The detection table is used for placing garbage to be detected, the garbage storage area is used for storing garbage with a preset sulfur element content range, and the number of the garbage storage areas is multiple; the laser induced breakdown spectrometer is used for detecting the content of sulfur elements in the garbage on the detection table and sending a detection result; the controller is used for receiving a detection result sent by the laser-induced breakdown spectrometer, judging a sulfur content interval to which sulfur elements in the garbage belong according to the detection result, and sending a garbage classification instruction; the first grabbing component is used for executing a garbage classification instruction sent by the controller, and the first grabbing component grabs the garbage and puts the garbage into a garbage storage area correspondingly storing the garbage with the sulfur element content interval; the second grabbing component is used for grabbing the garbage with the specified weight from each garbage storage area to the garbage incinerator.

Preferably, the device further comprises a plurality of conveying belts, the conveying belts correspond to the garbage storage areas one by one, the first grabbing component puts the grabbed garbage into the conveying belt correspondingly conveying the garbage in the sulfur element content interval, and the conveying belts put the garbage into the garbage storage areas correspondingly storing the garbage in the sulfur element content interval, as in embodiment 1, the high-S garbage is grabbed into the conveying belt (see the high-S belt in fig. 1) for conveying the high-S garbage, and the high-S garbage on the conveying belt is conveyed to the first storage area (see the high-S storage bin in fig. 1); the middle S waste is caught to a conveyor belt (see the middle S belt in fig. 1) for conveying the middle S waste, and the middle S waste on the conveyor belt is conveyed to a second storage area (see the middle S bin in fig. 1); the low S waste is caught to a conveyor belt (see low S belt in fig. 1) for conveying the low S waste, and the low S waste on the conveyor belt is conveyed into a third storage area (see low S bin in fig. 1).

The test table is preferred to include discharge bin, feed belt, and the feed belt is located the below of discharge bin, and rubbish is delivered to the rubbish power plant by the garbage truck, and in the hall of unloading unloads rubbish to discharge bin, the design capacity of discharge bin can receive a car rubbish, and there is the batcher discharge bin bottom, carries rubbish to the feed belt on, falls on the feed belt through batcher slow control rubbish, can make rubbish be the individual layer and distribute, and the LIBS of being convenient for detects rubbish above that.

The first gripping member is preferably a robot and the second gripping member is preferably a grab.

The controller comprises a server and a classification controller, the LIBS is connected with the server, the LIBS transmits a detection result to the server after detecting the content of sulfur elements in the real-time garbage, the server judges the sulfur element content interval to which the sulfur elements belong in the garbage according to the detection result and issues a classification instruction to the classification controller, the classification controller controls the manipulator to grab and place the garbage on a corresponding conveying belt, and the conveying belt is provided with a belt scale and has a weighing function, namely the weight of the garbage conveyed by the conveying belt can be measured. Since the weight of the waste on the feeding belt is known, the total weight of the waste in the corresponding waste storage area is known.

The garbage incinerator also comprises a feeding device, and garbage in each garbage storage area is grabbed by the second grabbing parts according to the weight proportion, placed on the feeding device and enters the garbage incinerator through the feeding device.

The apparatus further comprises SO₂Gas concentration detection device and SO₂Deacidifying agent flow controller connected with gas concentration detection device, SO₂Gas concentration detection device is used for real-time detection waste incinerator's flue gas discharge port SO₂The gas concentration and the detection result are sent to a deacidification agent flow controller, the deacidification agent flow controller controls the feeding amount of the deacidification agent according to the detection result, and if the SO is obtained₂When the concentration exceeds the environmental protection discharge standard, the deacidification agent flow controller controls and increases the input amount of the deacidification agent; when SO₂When the concentration is substantially 0, the deacidification agent flow controller controls and reduces the input amount of the deacidification agent so as to further stabilize the deacidification agent consumption.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.