阅读说明：本技术 一种减轻垃圾焚烧炉氯腐蚀的进料控制方法及装置 (Feeding control method and device for reducing chlorine corrosion of garbage incinerator ) 是由 张庚 赵宁波 陈嵩涛 王建阳 朱德力 卢承政 何金亮 于 2021-08-10 设计创作，主要内容包括：本发明涉及一种减轻垃圾焚烧炉氯腐蚀的进料控制方法及装置,方法包括：设置第一垃圾存储区、第二垃圾存储区；检测垃圾氯元素含量,并将其投入对应该氯元素含量区间的第一垃圾存储区、第二垃圾存储区；先将第二垃圾存储区内预设重量垃圾输送至焚烧炉内燃烧预设时间,再将第一垃圾存储区内预设重量的垃圾及预设重量污泥送至同一垃圾焚烧炉内燃烧预设时间；或先将第一垃圾存储区内预设重量垃圾及预设重量污泥送至焚烧炉内燃烧预设时间,再将第二垃圾存储区内预设重量垃圾送至焚烧炉内燃烧预设时间。本发明通过预先对垃圾按氯元素含量分类,将氯含量较高垃圾与污泥掺烧,氯含量较低垃圾直接焚烧,可减轻炉内氯腐蚀速率,延长焚烧炉安全稳定运行时间。(The invention relates to a feeding control method and a feeding control device for reducing chlorine corrosion of a garbage incinerator, wherein the method comprises the following steps: setting a first garbage storage area and a second garbage storage area; detecting the chlorine content of the garbage, and putting the chlorine content into a first garbage storage area and a second garbage storage area corresponding to the chlorine content interval; conveying garbage with preset weight in the second garbage storage area to an incinerator for burning for preset time, and conveying the garbage with preset weight in the first garbage storage area and sludge with preset weight to the same garbage incinerator for burning for preset time; or the garbage with the preset weight in the first garbage storage area and the sludge with the preset weight are firstly sent to the incinerator for burning for the preset time, and then the garbage with the preset weight in the second garbage storage area is sent to the incinerator for burning for the preset time. The invention classifies the garbage according to the chlorine element content in advance, co-burns the garbage with higher chlorine content with the sludge, directly burns the garbage with lower chlorine content, can reduce the chlorine corrosion rate in the incinerator, and prolongs the safe and stable operation time of the incinerator.)

1. A feeding control method for reducing chlorine corrosion of a garbage incinerator is characterized by comprising the following steps: the method comprises the following steps:

s1, setting a first garbage storage area and a second garbage storage area, wherein the first garbage storage area and the second garbage storage area are used for storing garbage with different preset chlorine content intervals, and the chlorine content in the garbage stored in the first garbage storage area is higher than that in the garbage stored in the second garbage storage area;

s2, detecting the chlorine content in the garbage, and putting the detected chlorine content into a first garbage storage area and a second garbage storage area which are used for correspondingly storing the garbage in the chlorine content interval;

s3, conveying the garbage with the preset weight in the second garbage storage area into a garbage incinerator for burning for a preset time, and conveying the garbage with the preset weight and the sludge with the preset weight in the first garbage storage area into the same garbage incinerator for burning for a preset time;

or conveying the garbage with the preset weight and the sludge with the preset weight in the first garbage storage area into the garbage incinerator for burning for the preset time, and conveying the garbage with the preset weight in the second garbage storage area into the same garbage incinerator for burning for the preset time.

2. The feed control method for mitigating chlorine corrosion in a waste incinerator according to claim 1, characterized by: in step S3, the sum of the burning time of the garbage with the preset weight in the second garbage storage area, the burning time of the garbage with the preset weight in the first garbage storage area, and the burning time of the sludge with the preset weight is 24 hours.

3. The feed control method for reducing chlorine corrosion of a garbage incinerator according to claim 2, characterized in that: in step S3, the garbage with the preset weight in the second garbage storage area is transported to the garbage incinerator to be burned for a first preset time T₁Then conveying the garbage with preset weight and the sludge with preset weight in the first garbage storage area to the same garbage incinerator for burning for a second preset time T₂，T₁Obtained by the following formula:

wherein M is₁Is the total weight of the garbage in the first garbage storage area, M₂Is the total weight of the garbage in the second garbage storage area, M₃The weight of sludge to be incinerated per day, q₁The charging amount of the garbage in the second garbage storage area per hour.

4. A feed control method for mitigating chlorine corrosion in a waste incinerator according to claim 3, characterized in that: the second garbage storage area is internally preset with weight m₁Garbage and preset weight m in first garbage storage area₂The garbage of (a) is obtained by the following formula:

q₃＝q₁-q₂

m₁＝q₁×T₁

m₂＝q₂×T₂

wherein q is₂For the amount of sludge charged per hour, q₃The charging amount of the garbage in the first garbage storage area per hour.

5. The feed control method for reducing chlorine corrosion of a garbage incinerator according to claim 2, characterized in that: in step S3, the garbage with the preset weight and the sludge with the preset weight in the first garbage storage area are delivered to the garbage incinerator for burning for a first preset time T₁Then conveying the garbage with preset weight in the second garbage storage area to the same garbage incinerator for burning for a second preset time T₂，T₁Obtained by the following formula:

wherein M is₁Is the total weight of the garbage in the first garbage storage area, M₂Is the total weight of the garbage in the second garbage storage area, M₃The weight of sludge to be incinerated per day, q₁The charging amount of the garbage in the second garbage storage area per hour.

6. The feed control method for reducing chlorine corrosion of a garbage incinerator according to claim 5, characterized in that: the weight m is preset in the first garbage storage area₂Garbage and preset weight m in second garbage storage area₁The garbage of (a) is obtained by the following formula:

q₃＝q₁-q₂

m₂＝q₂×T₁

m₁＝q₁×T₂

wherein q is₂For the amount of sludge charged per hour, q₃The charging amount of the garbage in the first garbage storage area per hour.

7. The feed control method for mitigating chlorine corrosion in a waste incinerator according to claim 1, characterized by: the content of chlorine element in the garbage stored in the first garbage storage area is more than 0.3%, and the content of chlorine element in the garbage stored in the second garbage storage area is less than or equal to 0.3%.

8. The feed control method for mitigating chlorine corrosion in a waste incinerator according to claim 1, characterized by: in the step S2, the laser-induced breakdown spectrometer is used to detect the content of chlorine 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 chlorine in the garbage belongs to the corresponding chlorine content section, and controls the grasping component to grasp the garbage to the corresponding first garbage storage area and the second garbage storage area.

9. An apparatus for implementing a method of controlling a feed for reducing chlorine corrosion in a waste incinerator according to any one of claims 1 to 8, characterized in that: the device includes:

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

the garbage storage system comprises a first garbage storage area and a second garbage storage area, wherein the first garbage storage area and the second garbage storage area are used for storing garbage in different preset chlorine content intervals;

laser-induced breakdown spectroscopy: the device is used for detecting the content of chlorine element in the garbage on the detection table 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 chlorine content interval to which chlorine in the garbage belongs according to the detection result, and sending a garbage classification instruction;

a first grasping member: the garbage classification device is used for executing a garbage classification command sent by the controller, capturing the garbage and putting the garbage into a first garbage storage area or a second garbage storage area which correspondingly conveys the garbage in the chlorine element content interval;

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

10. The apparatus of claim 9, wherein: the device also comprises a plurality of conveying belts, the first grabbing component is used for throwing the grabbed garbage to the conveying belts, and the conveying belts are used for throwing the garbage to the first garbage storage area or the second garbage storage area.

Technical Field

The invention belongs to the field of incineration treatment of garbage and sludge, and particularly relates to a feeding control method and a feeding control device for reducing chlorine corrosion of a garbage incinerator.

Background

The main treatment modes of the urban domestic garbage comprise 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 the garbage incineration are high, meanwhile, the heat generated in the incineration process is used for generating electricity to realize the energy of the garbage, and a garbage incineration power station is built in many domestic cities.

However, the content of chlorine in the garbage is high, so that chlorine corrosion is easily caused, namely, the corrosion and failure of the heated surface pipe of the incinerator are caused, and the corrosion and failure of the heated surface pipe can cause pipe explosion, so that the shutdown accident of the incinerator is frequent. Many waste incinerator operation about three months, the pipe explosion takes place promptly, needs the blowing out change, and this frequency is far higher than coal fired boiler, seriously influences waste incinerator system safety, economic operation.

At present, the chlorine-containing substances are considered to be the main cause of the corrosion of the heated surface of the garbage incinerator, and Cl₂And HCl can cause corrosion in an active oxidation mode, and HCl can also directly corrodeThe hot side metal is etched. Studies have shown that the higher the chlorine content of the fuel component, the greater the tendency to corrode, and the faster the corrosion rate.

In the case of chlorine corrosion, there have been some measures to reduce corrosion, including enhancing gas mixing, changing boiler superheater design structure, developing corrosion-resistant materials and coatings applied to the heating surface pipeline, but all are passive measures and cannot control chlorine corrosion in advance.

Disclosure of Invention

The invention aims to provide a feeding control method and a feeding control device for reducing chlorine corrosion of a garbage incinerator, so that the chlorine corrosion rate in the garbage incinerator can be reduced by reducing the content of chlorine in fuel entering the incinerator, the safe and stable operation time of the garbage incinerator is prolonged, pipe explosion and furnace shutdown caused by corrosion are avoided, and the economic loss is reduced.

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

a feeding control method for reducing chlorine corrosion of a garbage incinerator comprises the following steps:

s1, setting a first garbage storage area and a second garbage storage area, wherein the first garbage storage area and the second garbage storage area are used for storing garbage with different preset chlorine content intervals, and the chlorine content in the garbage stored in the first garbage storage area is higher than that in the garbage stored in the second garbage storage area;

s2, detecting the chlorine content in the garbage, and putting the detected chlorine content into a first garbage storage area and a second garbage storage area which are used for correspondingly storing the garbage in the chlorine content interval;

s3, conveying the garbage with the preset weight in the second garbage storage area into a garbage incinerator for burning for a preset time, and conveying the garbage with the preset weight and the sludge with the preset weight in the first garbage storage area into the same garbage incinerator for burning for a preset time; or conveying the garbage with the preset weight and the sludge with the preset weight in the first garbage storage area into the garbage incinerator for burning for the preset time, and conveying the garbage with the preset weight in the second garbage storage area into the same garbage incinerator for burning for the preset time.

Preferably, in step S3, the sum of the burning time of the garbage with the preset weight in the second garbage storage area, the burning time of the garbage with the preset weight in the first garbage storage area and the burning time of the sludge with the preset weight is 24 hours.

Preferably, in step S3, the garbage with the preset weight in the second garbage storage area is first transported to the garbage incinerator for burning for a first preset time T₁Then conveying the garbage with preset weight and the sludge with preset weight in the first garbage storage area to the same garbage incinerator for burning for a second preset time T₂，T₁Obtained by the following formula:

wherein M is₁Is the total weight of the garbage in the first garbage storage area, M₂Is the total weight of the garbage in the second garbage storage area, M₃The weight of sludge to be incinerated per day, q₁The charging amount of the garbage in the second garbage storage area per hour.

Preferably, the second garbage storage area is preset with a weight m₁Garbage and preset weight m in first garbage storage area₂The garbage of (a) is obtained by the following formula:

q₃＝q₁-q₂

m₁＝q₁×T₁

m₂＝q₂×T₂

wherein q is₂For the amount of sludge charged per hour, q₃The charging amount of the garbage in the first garbage storage area per hour.

Preferably, in step S3, the garbage with the preset weight and the sludge with the preset weight in the first garbage storage area are delivered to the garbage incinerator for burning for a first preset time T₁Then presetting the second garbage storage areaConveying the garbage to the same garbage incinerator for burning for a second preset time T₂，T₁Obtained by the following formula:

wherein M is₁Is the total weight of the garbage in the first garbage storage area, M₂Is the total weight of the garbage in the second garbage storage area, M₃The weight of sludge to be incinerated per day, q₁The charging amount of the garbage in the second garbage storage area per hour.

Preferably, the weight m is preset in the first garbage storage area₂Garbage and preset weight m in second garbage storage area₁The garbage of (a) is obtained by the following formula:

q₃＝q₁-q₂

m₂＝q₂×T₁

m₁＝q₁×T₂

wherein q is₂For the amount of sludge charged per hour, q₃The charging amount of the garbage in the first garbage storage area per hour.

Preferably, the content of chlorine element in the garbage stored in the first garbage storage area is more than 0.3%, and the content of chlorine element in the garbage stored in the second garbage storage area is less than or equal to 0.3%.

Preferably, in step S2, the laser-induced breakdown spectrometer is used to detect the content of chlorine 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 chlorine in the garbage belongs to the corresponding chlorine content interval, and controls the grasping component to grasp the garbage to the corresponding first garbage storage area and the second garbage storage area.

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

an apparatus for implementing the method for controlling the feeding to reduce chlorine corrosion of the garbage incinerator, the apparatus comprising:

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

the garbage storage system comprises a first garbage storage area and a second garbage storage area, wherein the first garbage storage area and the second garbage storage area are used for storing garbage in different preset chlorine content intervals;

laser-induced breakdown spectroscopy: the device is used for detecting the content of chlorine element in the garbage on the detection table 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 chlorine content interval to which chlorine in the garbage belongs according to the detection result, and sending a garbage classification instruction;

a first grasping member: the garbage classification device is used for executing a garbage classification command sent by the controller, capturing the garbage and putting the garbage into a first garbage storage area or a second garbage storage area which correspondingly conveys the garbage in the chlorine element content interval;

a second grasping member: the garbage incinerator is used for grabbing garbage with specified weight from the first garbage storage area and the second 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 into the conveying belts, and the conveying belts throw the garbage into the first garbage storage area or the second 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 invention, the garbage with higher chlorine content and the sludge are classified in advance according to the chlorine content, and are subjected to mixed combustion in the garbage incinerator for the preset time, and the garbage with lower chlorine content is subjected to incineration in the garbage incinerator for the preset time, so that the chlorine content in the fuel in the garbage incinerator can be reduced, the HCl concentration in the incinerator is reduced, the chlorine corrosion rate in the garbage incinerator is reduced, the safe and stable operation time of the garbage incinerator is prolonged, pipe explosion and furnace shutdown caused by corrosion are avoided, and the economic loss is reduced.

Drawings

FIG. 1 is a schematic flow diagram of a method for controlling the feeding of a waste incinerator to reduce chlorine corrosion according to the present invention.

Detailed Description

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

A feeding control method for reducing chlorine corrosion of a garbage incinerator comprises the following steps:

s1, setting a first garbage storage area and a second garbage storage area, wherein the first garbage storage area and the second garbage storage area are used for storing garbage with different preset chlorine content intervals, and the chlorine content in the garbage stored in the first garbage storage area is higher than that in the garbage stored in the second garbage storage area;

the content of chlorine in the garbage can be generally divided into two levels, the garbage with the content of chlorine greater than a preset threshold value is high-chlorine garbage, the garbage with the content of chlorine less than or equal to the preset threshold value is low-chlorine garbage, for example, the garbage with the content of chlorine within the range of 0% -0.3% is low-chlorine garbage, the garbage with the content of chlorine greater than 0.3% is high-chlorine garbage, and the content of chlorine in the sludge is generally about 0.04%. Preferably, the content of chlorine in the garbage stored in the first garbage storage area is set to be more than 0.3%, and the content of chlorine in the garbage stored in the second garbage storage area is set to be less than or equal to 0.3%. The content of chlorine element in the high-chlorine garbage and the low-chlorine garbage is not only 0.3% of the judgment standard, for example 0.4%, but also determined according to the actual situation.

S2, detecting the chlorine content in the garbage, and putting the detected chlorine content into a first garbage storage area and a second garbage storage area which are corresponding to garbage with the chlorine content interval, wherein if the chlorine content in the garbage is detected to be more than 0.3%, the detected chlorine content is put into the first garbage storage area, and if the chlorine content in the garbage is detected to be less than or equal to 0.3%, the detected chlorine content is put into the second garbage storage area.

Preferably, a Laser Induced Breakdown Spectrometer (LIBS) is adopted to detect the content of chlorine in the garbage, the LIBS sends detection data to a controller, the controller sends a classification instruction after judging that the chlorine in the garbage belongs to a corresponding chlorine content interval, and controls a grabbing component to grab the garbage to a corresponding first garbage storage area and a corresponding second garbage storage area.

The LIBS is widely applied to on-line detection of industrial fields, can be applied to multiple occasions such as analysis of heavy metals and coal quality in soil, detection of sewage and the like, is rapid in analysis, and can simultaneously analyze multiple elements and detect almost all solid samples. The LIBS irradiates the garbage through laser pulses, and the content (%) of chlorine elements in the garbage can be obtained in real time.

S3, conveying the garbage with the preset weight in the second garbage storage area into a garbage incinerator for burning for a preset time, and conveying the garbage with the preset weight and the sludge with the preset weight in the first garbage storage area into the same garbage incinerator for burning for a preset time; or conveying the garbage with the preset weight and the sludge with the preset weight in the first garbage storage area into the garbage incinerator for burning for the preset time, and conveying the garbage with the preset weight in the second garbage storage area into the same garbage incinerator for burning for the preset time. Specifically, the method comprises the following steps: the sludge needs to be quantitatively incinerated every day.

Because the chlorine content in the garbage is high and the chlorine content in the sludge is low, the garbage is classified by detecting the chlorine content in the garbage and according to the chlorine content, for example, the garbage is classified into high-chlorine garbage and low-chlorine garbage. When the garbage is burnt in the furnace, the high-chlorine garbage and the sludge are mixed to burn, and the low-chlorine garbage is directly burnt, so that the chlorine content of the fuel in the garbage burning furnace can be reduced, the HCl concentration in the burning furnace can be reduced, and the chlorine corrosion can be reduced.

Preferably, the sum of the combustion time of the garbage with the preset weight in the second garbage storage area, the combustion time of the garbage with the preset weight in the first garbage storage area and the combustion time of the sludge with the preset weight is 24 hours.

Because the garbage source of the garbage power station is relatively fixed, the amount of the garbage fed into the first garbage storage area and the second garbage storage area every day is relatively fixed, so that the independent incineration time of the garbage (low-chlorine garbage) in the second garbage storage area and the coupling incineration time of the garbage (high-chlorine garbage) and sludge in the first garbage storage area need to be controlled when the garbage is burnt in the furnace, the weight ratio of the residual garbage in the first garbage storage area and the residual garbage in the second garbage storage area is relatively stable after the garbage is burnt every day, and the continuous operation is kept.

Example one

Carry the rubbish of predetermineeing weight in the second waste storage area to the burning in the msw incineration furnace preset time earlier, carry the rubbish of predetermineeing weight in the first waste storage area and the mud of predetermineeing weight to the burning in same msw incineration furnace preset time again, concrete embodiment is as follows:

firstly, conveying the garbage with preset weight in the second garbage storage area to a garbage incinerator for burning for a first preset time T₁Then conveying the garbage with preset weight and the sludge with preset weight in the first garbage storage area to the same garbage incinerator for burning for a second preset time T₂，T₁Obtained by the following formula:

T₂＝24-T₁

wherein M is₁Is the total weight of the garbage in the first garbage storage area, M₂Is the total weight of the garbage in the second garbage storage area, M₃The weight of sludge to be incinerated per day, q₁The charging amount (t/h) of the garbage in the second garbage storage area per hour refers to the weight of the garbage in the second garbage storage area per hour entering the garbage incinerator, namely the designed charging amount of the garbage incinerator. Garbage is thrown into the first garbage storage area or the second garbage storage area through the grabbing component, the weight of the garbage grabbed at each time is measurable, and therefore the total weight of the garbage in the first garbage storage area and the total weight of the garbage in the second garbage storage area are obtained through measurement.

When the garbage (low-chlorine garbage) in the second garbage storage area is firstly and independently incinerated in the garbage incinerator, the weight of the garbage charged per hour is q₁Time is T₁(ii) a When the garbage (high-chlorine garbage) in the first garbage storage area is coupled with the sludge and then incinerated, the charging amount of the garbage (high-chlorine garbage) in the first garbage storage area is q₃The amount of sludge charged per hour is q₂Combustion time of T₂。

Preset weight m in the second garbage storage area₁Garbage and preset weight m in first garbage storage area₂The garbage of (a) is obtained by the following formula:

q₃＝q₁-q₂

m₁＝q₁×T₁

m₂＝q₂×T₂

suppose a garbage incinerator is designed to handle a certain amount of treatment q₁The total weight of the garbage in the first garbage storage area and the total weight of the garbage in the second garbage storage area are respectively M (30 t/h)₁＝1000t、M₂The weight of the sludge to be treated and incinerated every day is M which is 500t₃100 t. The calculation process is as follows:

T₂＝24-T₁＝17.1h

and (3) independently burning the garbage (low-chlorine garbage) in the second garbage storage area for 6.9 hours every day, wherein the amount of garbage fed into the furnace per hour is 30t, and the total amount is 207 t. The coupled incineration time of the garbage (high-chlorine garbage) and the sludge in the first garbage storage area every day is 17.1h, wherein the sludge charging amount q per hour₂The ratio of 100 t/17.1 h to 5.9t/h, the total amount of sludge is 100t, and the charging amount q of the garbage (high-chlorine garbage) in the first garbage storage area per hour₃The incineration amount of the garbage (high-chlorine garbage) in the first garbage storage area is 412t in total, wherein the incineration amount of the garbage (high-chlorine garbage) is 30t/h-5.9 t/h-24.1 t/h. After one day, the sludge is burnt out, new sludge is burnt after entering a factory, and the waste (high-chlorine waste) in the first waste storage area remains 588t, the waste (low-chlorine waste) in the second waste storage area remains 293t, the ratio is basically 2:1, the total weight ratio of the waste in the first waste storage area and the waste in the second waste storage area is consistent with the total weight ratio of the waste in the first waste storage area and the waste in the second waste storage area at the initial moment, and the continuous and stable operation can be realized.

When the combustion mode is adopted, when the garbage (low-chlorine garbage) in the second garbage storage area is independently burned in the garbage incinerator, the chlorine content in the fuel in the garbage incinerator is lower than 0.3%. When the garbage (high-chlorine garbage) and the sludge in the first garbage storage area are subjected to coupled incineration, the chlorine content Cl in the high-chlorine garbage is assumed₁With the chlorine content Cl in the sludge₂0.5%, 0.04%, respectively, the chlorine content in the fuel in the waste incinerator can be calculated by the following formula:

that is, in the coupled incineration, the chlorine content in the fuel in the waste incineration furnace is 0.4% which is significantly reduced from the initial 0.5%, and therefore, HCl and Cl in the waste incineration furnace₂The amount of chlorine generated is also significantly reduced, and the chlorine corrosion caused thereby is also significantly reduced.

Example two

Carry the rubbish of predetermineeing weight and the mud of predetermineeing weight in the first waste storage area to the burning in the msw incineration furnace for the preset time earlier, carry the rubbish of predetermineeing weight in the second waste storage area to the burning in same msw incineration furnace for the preset time again, concrete embodiment is as follows:

conveying garbage with preset weight and sludge with preset weight in a first garbage storage area into a garbage incinerator for burning for a first preset time T₁Then conveying the garbage with preset weight in the second garbage storage area to the same garbage incinerator for burning for a second preset time T₂，T₁Obtained by the following formula:

T₂＝24-T₁

wherein M is₁Is the total weight of the garbage in the first garbage storage area, M₂Is the total weight of the garbage in the second garbage storage area, M₃Needs to be incinerated every dayWeight of sludge of (b), q₁The charging amount (t/h) of the garbage in the second garbage storage area per hour refers to the weight of the garbage in the second garbage storage area per hour entering the garbage incinerator, namely the designed charging amount of the garbage incinerator. Garbage is thrown into the first garbage storage area or the second garbage storage area through the grabbing component, the weight of the garbage grabbed at each time is measurable, and therefore the total weight of the garbage in the first garbage storage area and the total weight of the garbage in the second garbage storage area are obtained through measurement.

When the garbage (high-chlorine garbage) in the first garbage storage area is coupled with the sludge and is burnt first, the charging amount of the garbage (high-chlorine garbage) in the first garbage storage area is q₃The amount of sludge charged per hour is q₂Combustion time of T₁. When the garbage (low-chlorine garbage) in the second garbage storage area is independently incinerated after the garbage incinerator, the weight of the garbage entering the incinerator per hour is q₁Time is T₂。

Presetting weight m in first garbage storage area₂Garbage and preset weight m in second garbage storage area₁The garbage of (a) is obtained by the following formula:

q₃＝q₁-q₂

m₂＝q₂×T₁

m₁＝q₁×T₂

wherein q is₂For the amount of sludge charged per hour, q₃The charging amount of the garbage in the first garbage storage area per hour.

Suppose a garbage incinerator is designed to handle a certain amount of treatment q₁The total weight of the garbage in the first garbage storage area and the total weight of the garbage in the second garbage storage area are respectively M (30 t/h)₁＝1000t、M₂The weight of the sludge to be treated and incinerated every day is M which is 500t₃100 t. The calculation process is as follows:

T₂＝24-T₁＝6.9h

the coupled incineration time of the garbage (high-chlorine garbage) and the sludge in the first garbage storage area every day is 17.1h, wherein the sludge charging amount q per hour₂The ratio of 100 t/17.1 h to 5.9t/h, the total amount of sludge is 100t, and the charging amount q of the garbage (high-chlorine garbage) in the first garbage storage area per hour₃The incineration amount of the garbage (high-chlorine garbage) in the first garbage storage area is 412t in total, wherein the incineration amount of the garbage (high-chlorine garbage) is 30t/h-5.9 t/h-24.1 t/h. And (3) independently burning the garbage (low-chlorine garbage) in the second garbage storage area for 6.9 hours every day, wherein the amount of garbage fed into the furnace per hour is 30t, and the total amount is 207 t. After one day, the sludge is burnt out, new sludge is burnt after entering a factory, and the waste (high-chlorine waste) in the first waste storage area remains 588t, the waste (low-chlorine waste) in the second waste storage area remains 293t, the ratio is basically 2:1, the total weight ratio of the waste in the first waste storage area and the waste in the second waste storage area is consistent with the total weight ratio of the waste in the first waste storage area and the waste in the second waste storage area at the initial moment, and the continuous and stable operation can be realized.

When the combustion mode is adopted, when the garbage (low-chlorine garbage) in the second garbage storage area is independently burned in the garbage incinerator, the chlorine content in the fuel in the garbage incinerator is lower than 0.3%. When the garbage (high-chlorine garbage) and the sludge in the first garbage storage area are subjected to coupled incineration, the chlorine content Cl in the high-chlorine garbage is assumed₁With the chlorine content Cl in the sludge₂0.5%, 0.04%, respectively, the chlorine content Cl in the fuel in the waste incinerator can be calculated by the following formula:

that is, in the coupled incineration, the chlorine content in the fuel in the waste incinerator is 0.4%, which is obviously reduced compared with the initial 0.5%, so that HCl and Cl in the incinerator are reduced₂The amount of chlorine generated is also significantly reduced, and the chlorine corrosion caused thereby is also significantly reduced.

According to the invention, through testing the content of chlorine element in the garbage in advance, the garbage is divided into high-chlorine garbage and low-chlorine garbage, the high-chlorine garbage is mixed with sludge for combustion, and the low-chlorine garbage is directly combusted, so that the chlorine content in the fuel in the incinerator can be reduced.

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 first garbage storage area, a second garbage storage area, a laser induced breakdown spectroscopy (LIBS for short), a controller, a first grabbing part and a second grabbing part.

The detection table is used for placing garbage to be detected, the first garbage storage area and the second garbage storage area are used for storing garbage with different preset chlorine content intervals, wherein the chlorine content in the garbage stored in the first garbage storage area is higher than that in the garbage stored in the second garbage storage area.

The laser induced breakdown spectrometer is used for detecting the content of chlorine 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 chlorine content interval to which chlorine in the garbage belongs according to the detection result, and sending a garbage classification instruction; the first grabbing part is used for executing a garbage classification instruction sent by the controller, and the first grabbing part grabs the garbage and puts the garbage into a first garbage storage area or a second garbage storage area which correspondingly conveys the garbage in the chlorine element content interval; the second grabbing component is used for grabbing the garbage with the specified weight from the first garbage storage area and the second garbage storage area to the garbage incinerator.

Preferably, the device further comprises a plurality of conveying belts, the first garbage storage area corresponds to one conveying belt, the second garbage storage area corresponds to one conveying belt, the first grabbing component puts the grabbed garbage into the conveying belt which correspondingly conveys the garbage with the chlorine content interval, and the conveying belt puts the garbage into the first garbage storage area or the second garbage storage area which correspondingly stores the garbage with the chlorine content interval, as in example 1, the high chlorine garbage is grabbed into the conveying belt (see the high CL belt in fig. 1) for conveying the high chlorine garbage, and the high chlorine garbage on the conveying belt is conveyed to the first storage area (see the high CL area in fig. 1); the low chlorine waste is caught to a conveyor belt (see the low CL belt in fig. 1) for conveying the low chlorine waste, and the low chlorine waste on the conveyor belt is conveyed to a second storage area (see the low CL area in fig. 1).

The test table is preferred including the discharge bin, the feeding belt, the LIBS is preferred to be installed in feeding belt side, the feeding belt is located the below of discharge bin, rubbish is delivered to the rubbish power plant by the garbage truck, unload the discharge bin in the hall of unloading with rubbish, the design capacity of discharge bin can receive a car rubbish, there is the batcher discharge bin bottom, carry rubbish to the feeding belt on, slowly control rubbish through the batcher and fall on the feeding belt, can make rubbish be the individual layer and distribute, 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 chlorine in real-time garbage, the server judges the chlorine content interval to which the chlorine belongs 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, the conveying belt is provided with a belt scale and has a weighing function, and the weight of the garbage conveyed by the conveying belt can be measured. Since the weight of waste on the feeding belt is known, the total weight of waste in the respective first and second waste storage areas is known.

The first garbage storage area and the second garbage storage area are preferably formed by arranging partition plates at intervals in the garbage storage pit.

The device also comprises a feeding device, the garbage in the first garbage storage area or the second garbage storage area is grabbed by the second grabbing part and placed on the feeding device, and the garbage enters the garbage incinerator through the feeding device.

Carry out chlorine element analysis through LIBS discernment to rubbish on the big hall of unloading feeding belt of rubbish, reacing the content of the chlorine element in the rubbish, according to the height of the chlorine element content in the rubbish, divide into high chlorine rubbish, low chlorine rubbish two kinds with rubbish, feed back the result to the manipulator again, snatch different types of rubbish by the manipulator and place different conveyor belts on, realize categorizing rubbish according to chlorine content height. When the garbage enters the furnace for combustion, when the garbage (low-chlorine garbage) in the second garbage storage area is grabbed to the garbage incinerator for combustion, the chlorine content of the garbage in the garbage incinerator is lower; when the garbage (high-chlorine garbage) in the first garbage storage area is grabbed, the sludge feeding device starts to operate, the sludge and the high-chlorine garbage are carried out in the incinerator together, and at the moment, the average chlorine content of the fuel in the garbage incinerator is lower.

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.