Incineration flue gas purification treatment system for chlorine-containing and fluorine-containing waste

Abstract

The invention relates to the field of flue gas purification treatment, in particular to an incineration flue gas purification treatment system for chlorine-containing and fluorine-containing waste, and aims to solve the problems that incineration flue gas purification equipment cannot be adaptively adjusted according to flue gas conditions and purification conditions, so that the purification effect of the flue gas purification equipment is insufficient, and the purification cost is increased. Comprising an air inlet detection module, an absorption control module, an exhaust detection module, an air inlet control module and an integrated analysis module, the incineration flue gas purification equipment is intelligently supervised, so that the incineration flue gas purification equipment can adapt to the flue gas inlet condition so as to perform automatic adaptive adjustment, and the gas inlet speed of the flue gas purification equipment and the inlet speed of absorption liquid in the purification equipment are changed; the absorption effect can be improved, the use amount of the absorption liquid can be reduced, the absorption degree of fluorine-containing and chlorine-containing substances in the gas can be ensured, and the purposes of improving the purification effect of the flue gas purification equipment and reducing the purification cost are achieved.

Description

Technical Field

[0001] The invention relates to the field of flue gas purification and treatment, in particular to a flue gas purification and treatment system for incineration of chlorine-containing and fluorine-containing wastes. Background Art

[0002] The incineration system can process waste, pollutants and other harmful substances and convert them into ash and flue gas. The main purpose of the incineration system is to completely decompose the waste through high-temperature combustion to reduce the impact on the environment. Flue gas is one of the gas by-products produced during the incineration process. The flue gas produced by combustion has caused increasingly serious harm to the atmospheric environment. In addition, trace amounts of heavy metal mercury Hg, HCl, HF and volatile organic pollutants VOC and other hazards are also increasingly attracting people's attention. These substances may cause potential harm to the environment and human health, so they need to be purified before they can be discharged. Therefore, mercury, chlorine, fluorine, volatile organic pollutants, etc., with the development of the economy and society and the enhancement of people's environmental protection awareness, these pollutants must be gradually controlled;

[0003] At present, when the incineration flue gas purification system in the prior art is in operation, the intelligent system it is equipped with can only record the flue gas emission situation, but cannot automatically make adaptive adjustments based on the monitoring results, which makes the intelligent system single in function. When the flue gas emission results are abnormal, manual analysis and judgment are still required, and the parameters of the operation of the flue gas purification equipment are adjusted, resulting in insufficient timeliness in adjusting the incineration flue gas purification effect, reducing the purification effect of fluorine and chlorine substances in the flue gas, causing pollution to the environment, and at the same time, when the purification capacity is in excess, there is a lack of effective detection and adjustment means, resulting in insufficient coupling between the purification capacity and the emission speed of the purification equipment, resulting in a large redundant power of the purification equipment, and increasing the purification cost;

[0004] In view of the above technical problems, this application proposes a solution. Summary of the invention

[0005] The present invention performs intelligent supervision on the incineration flue gas purification equipment, so that the incineration flue gas purification equipment can adapt to the flue gas intake conditions and perform automatic adaptive adjustment, so that the intake speed of the flue gas purification equipment and the entry speed of the absorption liquid in the purification equipment are changed, so as to achieve the purpose of improving the purification effect of the flue gas purification equipment and reducing the purification cost, and solve the problem that the incineration flue gas purification equipment cannot be adaptively adjusted according to the flue gas conditions and the purification conditions, resulting in insufficient purification effect of the flue gas purification equipment and increased purification cost, and proposes an incineration flue gas purification treatment system for chlorine-containing and fluorine-containing wastes.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] The flue gas purification treatment system for the incineration of chlorine-containing and fluorine-containing wastes includes an air intake detection module, which detects the air intake stage of the flue gas purification equipment and obtains air intake data;

[0008] An exhaust detection module, which detects the exhaust stage of the flue gas purification equipment, obtains exhaust data, and generates an emission signal according to the exhaust data;

[0009] An absorption control module, wherein the absorption control module obtains the amount of absorption liquid used by the flue gas purification equipment, and compares the amount of absorption liquid used with the amount of pollution absorbed to obtain absorption saturation, and compares according to the absorption saturation to generate an absorption ratio signal;

[0010] An air intake control module, the air intake control module is used to control the air intake speed of the flue gas purification equipment according to the signal;

[0011] An integrated analysis module, which can obtain the absorption ratio signal and the emission signal for combined analysis, generate an intake control signal and an absorption liquid control signal according to the result of the combined analysis, and execute the intake control signal through the intake control module and execute the absorption liquid control signal through the absorption control module.

[0012] As a preferred embodiment of the present invention, the intake detection module analyzes the smoke components at the inlet end to obtain the amount of chlorine-containing waste and fluorine-containing waste in the smoke, and performs summation statistics to record as the intake pollution amount;

[0013] The intake detection module compares the intake pollution amount with the set content standard, and generates a high pollution content signal or a low pollution content signal according to the comparison result. At the same time, the intake detection unit sends the high pollutant content signal and the low pollutant content signal to the management device through the network. The intake control module obtains the current intake speed through the intake detection module and records it.

[0014] As a preferred embodiment of the present invention, the exhaust detection module obtains exhaust data through the exhaust end, and the exhaust data includes the chlorine content of the gas and the fluorine content of the gas;

[0015] The exhaust detection module adds the gas chlorine content and the gas fluorine content in the exhaust data to obtain the exhaust pollution amount, and compares the exhaust pollution amount with the set exhaust standard. If the exhaust pollution amount exceeds the set exhaust standard, an exhaust excess signal is generated. If the exhaust pollution amount does not exceed the set exhaust standard, an exhaust normal signal is generated. The exhaust detection module sends the exhaust pollution amount to the absorption control module.

[0016] As a preferred embodiment of the present invention, the absorption control module performs difference calculation on the acquired exhaust pollution amount and intake pollution amount, and obtains the pollution absorption amount according to the result of the difference calculation;

[0017] The absorption control module obtains the amount of absorption liquid through the liquid flow meter at the absorption processing end, and the absorption control module calculates the ratio of the pollution absorption amount to the absorption liquid amount, and records the result of the ratio calculation as the absorption saturation;

[0018] The absorption control module compares the absorption saturation with the set saturation lower limit. If the absorption saturation is greater than the set saturation lower limit, an absorption compliance signal is generated. If the absorption saturation does not reach the set saturation lower limit, an absorption non-compliance signal is generated.

[0019] As a preferred embodiment of the present invention, after the absorption control module generates the absorption standard signal, the absorption control module compares the absorption saturation with the set saturation upper limit. If the difference between the absorption saturation and the set saturation upper limit is less than or equal to the set value, an absorption saturation signal is generated; if the difference between the absorption saturation and the set saturation upper limit is greater than the set value, a normal absorption signal is generated.

[0020] As a preferred embodiment of the present invention, the integrated analysis module obtains the normal exhaust signal and the absorption saturation signal at the same time, then obtains the intake speed through the intake control module, and compares the intake speed with the set maximum intake speed, and at the same time obtains the absorption liquid inlet speed through the absorption control module, and compares the absorption liquid inlet speed with the maximum inlet speed. If the inlet speed is less than the maximum inlet speed and the air intake speed is less than the maximum inlet speed, then an intake acceleration signal and an absorption liquid acceleration signal are generated, and the air intake speed and the liquid inlet speed are increased at the same ratio;

[0021] The integrated analysis module generates an absorption liquid deceleration signal based on the normal exhaust signal and, if it simultaneously obtains the absorption substandard signal, sends the absorption liquid deceleration signal to the absorption control module, which reduces the amount of absorption liquid entering the exhaust gas purification device through the liquid infusion pipeline.

[0022] As a preferred embodiment of the present invention, the integrated analysis module generates an absorption liquid acceleration signal if it simultaneously obtains the absorption saturation signal based on the exhaust gas exceeding the standard, and sends the absorption liquid acceleration signal to the absorption control module, and the absorption control module increases the throughput of the absorption liquid;

[0023] If, on the basis of obtaining the exhaust gas exceeding the standard, the absorption substandard signal or the absorption normal signal is obtained at the same time, an intake deceleration signal is generated and sent to the intake control module, and the intake control module reduces the intake speed of the intake port in the exhaust gas purification device.

[0024] As a preferred embodiment of the present invention, the integrated analysis module adjusts the air intake speed and the absorption liquid speed by setting the acceleration and deceleration ratios to obtain the adjusted air intake speed a or the absorption liquid intake speed b, a=a0*(1+x%), b=b0*(1+y%), wherein a0 is the air intake speed before adjustment, b0 is the absorption liquid intake speed before adjustment, x is the adjustment ratio of the air intake speed, y is the adjustment ratio of the absorption liquid speed, when accelerating, x and y are positive values, and when decelerating, x and y are negative values.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The present invention performs intelligent supervision on the incineration flue gas purification equipment so that the incineration flue gas purification equipment can adapt to the flue gas intake conditions and perform automatic adaptive adjustment, so that the intake speed of the flue gas purification equipment changes and is balanced with the absorption speed, thereby improving the purification effect of the flue gas purification equipment. At the same time, the amount of absorption liquid in the flue gas purification equipment is analyzed, and the amount of harmful substances in the flue gas absorbed by each unit volume of the absorption liquid is increased by adjusting the intake speed of the absorption liquid, thereby maximizing the use of the absorption liquid and achieving the purpose of reducing the purification cost.

[0027] 2. In the present invention, during the operation of the incineration flue gas purification equipment, the intake and exhaust gas of the purification equipment and the consumption of the absorption liquid are collected and analyzed to realize the analysis of the absorption saturation of the absorption liquid, so as to adjust the amount of the absorption liquid and the air intake speed according to the saturation of the absorption liquid to ensure that the absorption degree of the absorption liquid meets the standard while not exceeding the saturation upper limit, which can not only improve the absorption effect and reduce the amount of absorption liquid, but also ensure the absorption degree of fluorine-containing and chlorine-containing substances in the gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0029] Figure 1 is a system block diagram of the present invention;

[0030] Figure 2 It is a system flow chart of the present invention. DETAILED DESCRIPTION

[0031] The technical scheme of the present invention will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1:

[0033] See also Figure 1 - Figure 2 As shown, the incineration flue gas purification treatment system for chlorine-containing and fluorine-containing wastes includes an intake detection module, an absorption control module, an exhaust detection module, an intake control module and an integrated analysis module;

[0034] The intake detection module uses a flue gas analyzer installed at the flue gas inlet to perform mass spectrometry analysis on the flue gas components at the inlet end, obtains the amount of chlorine-containing waste and fluorine-containing waste in the flue gas based on the analysis results, and sums and counts the amounts of chlorine-containing waste and fluorine-containing waste, which are recorded as the intake air pollution amount;

[0035] The intake detection module compares the intake air pollution amount with the set content standard. If the intake air pollution amount is greater than the set content standard, a high pollution content signal is generated. If the intake air pollution amount is not greater than the set content standard, a low pollution content signal is generated. At the same time, the intake detection unit sends the high pollutant content signal and the low pollutant content signal to the management device. The management device displays the pollutant content of the intake stage. The intake control module obtains the current intake speed through the intake detection module and records it.

[0036] The exhaust end obtains exhaust data through a flue gas analyzer installed at the exhaust port of the purification equipment, and sends the exhaust data to the exhaust detection module. The exhaust data includes the chlorine content and the fluorine content of the gas.

[0037] The exhaust detection module adds the gas chlorine content and the gas fluorine content in the exhaust data to obtain the exhaust pollution amount, and compares the exhaust pollution amount with the set exhaust standard. If the exhaust pollution amount exceeds the set exhaust standard, an exhaust excess signal is generated. If the exhaust pollution amount does not exceed the set exhaust standard, an exhaust normal signal is generated. The exhaust detection module sends the exhaust pollution amount to the absorption control module;

[0038] The absorption control module calculates the difference between the acquired exhaust pollution amount and the intake pollution amount, and obtains the pollution absorption amount according to the result of the difference calculation;

[0039] The absorption treatment end counts the amount of absorption liquid entering the absorption tower through the liquid flow meter in the exhaust gas purification equipment, and sends the amount of absorption liquid to the absorption control module. The liquid flow meter is located in the liquid delivery pipeline of the exhaust gas purification equipment. The absorption control module calculates the proportion of the pollution absorption amount and the absorption liquid amount, and records the result of the proportion calculation as the absorption saturation;

[0040] The absorption control module compares the absorption saturation with the set saturation lower limit. If the absorption saturation is greater than the set saturation lower limit, an absorption standard-reaching signal is generated. If the absorption saturation does not reach the set saturation lower limit, an absorption standard-unreaching signal is generated.

[0041] After generating the absorption standard signal, the absorption control module compares the absorption saturation with the set saturation upper limit. If the difference between the absorption saturation and the set saturation upper limit is less than or equal to the set value, an absorption saturation signal is generated; if the difference between the absorption saturation and the set saturation upper limit is greater than the set value, a normal absorption signal is generated.

[0042] Embodiment 2:

[0043] See also Figure 1 - Figure 2 As shown, the integrated analysis module obtains the normal exhaust signal and the absorption saturation signal at the same time, then obtains the intake speed through the intake control module, and compares the intake speed with the set maximum intake speed. At the same time, the absorption liquid inlet speed is obtained through the absorption control module, and the absorption liquid inlet speed is compared with the maximum inlet speed. If the inlet speed is less than the maximum inlet speed and the air intake speed is less than the maximum air intake speed, an air intake acceleration signal and an absorption liquid acceleration signal are generated, thereby increasing the air intake speed and the liquid intake speed in the same proportion, thereby improving the purification operation speed of the flue gas purification equipment.

[0044] The integrated analysis module generates an absorption liquid deceleration signal based on the normal exhaust signal and, if it also obtains a non-standard absorption signal, sends the absorption liquid deceleration signal to the absorption control module. The absorption control module controls the valve in the infusion pipeline to reduce the amount of absorption liquid entering the exhaust gas purification equipment through the infusion pipeline, so that each unit volume of absorption liquid can absorb more pollutants, thereby reducing the consumption of absorption liquid in the exhaust gas purification equipment.

[0045] Embodiment three:

[0046] See also Figure 1 - Figure 2 As shown, the integrated analysis module generates an absorption liquid acceleration signal based on the exhaust gas exceeding the standard, if the absorption saturation signal is obtained at the same time, and sends the absorption liquid acceleration signal to the absorption control module, and the absorption control module increases the throughput of the absorption liquid;

[0047] If, on the basis of obtaining the exhaust gas exceeding the standard, the absorption non-standard signal or the absorption normal signal is obtained at the same time, an intake deceleration signal is generated and sent to the intake control module, and the intake control module reduces the intake speed of the air inlet in the exhaust gas purification device to slow down the passing speed of the flue gas in the exhaust gas purification device, so as to make the contact time between the absorption liquid and the flue gas longer, thereby improving the absorption effect of the pollutants in the flue gas;

[0048] When generating the air intake acceleration signal, the air intake deceleration signal, the absorption liquid acceleration signal and the absorption liquid deceleration signal, the integrated analysis module adjusts the air intake speed and the absorption liquid speed by setting the acceleration and deceleration ratios to obtain the adjusted air intake speed a or the absorption liquid intake speed b, a=a0*(1+x%), b=b0*(1+y%), wherein a0 is the air intake speed before adjustment, b0 is the absorption liquid intake speed before adjustment, x is the adjustment ratio of the air intake speed, y is the adjustment ratio of the absorption liquid speed, during acceleration, x and y are positive values, and during deceleration, x and y are negative values.

[0049] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A flue gas purification system for incineration of chlorine-containing and fluorine-containing wastes, characterized in that: It includes an air intake detection module, which detects the air intake stage of the flue gas purification equipment and obtains air intake data; An exhaust detection module, which detects the exhaust stage of the flue gas purification equipment, obtains exhaust data, and generates an emission signal according to the exhaust data; An absorption control module, wherein the absorption control module obtains the amount of absorption liquid used by the flue gas purification equipment, and compares the amount of absorption liquid used with the amount of pollution absorbed to obtain absorption saturation, and compares according to the absorption saturation to generate an absorption ratio signal; An air intake control module, the air intake control module is used to control the air intake speed of the flue gas purification equipment according to the signal; An integrated analysis module, which can obtain the absorption ratio signal and the emission signal for combined analysis, generate an intake control signal and an absorption liquid control signal according to the result of the combined analysis, and execute the intake control signal through the intake control module and execute the absorption liquid control signal through the absorption control module.

2. The incineration flue gas purification treatment system for chlorine-containing and fluorine-containing wastes according to claim 1 is characterized in that: The intake detection module analyzes the smoke components at the inlet end, obtains the amount of chlorine-containing waste and fluorine-containing waste in the smoke, and performs summation and statistics, and records it as the intake pollution amount; The intake detection module compares the intake pollution amount with the set content standard, and generates a high pollution content signal or a low pollution content signal according to the comparison result. At the same time, the intake detection unit sends the high pollutant content signal and the low pollutant content signal to the management device through the network. The intake control module obtains the current intake speed through the intake detection module and records it.

3. The incineration flue gas purification treatment system for chlorine-containing and fluorine-containing wastes according to claim 1 is characterized in that: The exhaust detection module obtains exhaust data through the exhaust terminal, and the exhaust data includes chlorine content and fluorine content of the gas; The exhaust detection module adds the gas chlorine content and the gas fluorine content in the exhaust data to obtain the exhaust pollution amount, and compares the exhaust pollution amount with the set exhaust standard. If the exhaust pollution amount exceeds the set exhaust standard, an exhaust excess signal is generated. If the exhaust pollution amount does not exceed the set exhaust standard, an exhaust normal signal is generated. The exhaust detection module sends the exhaust pollution amount to the absorption control module.

4. The system for purifying flue gas from the incineration of chlorine-containing and fluorine-containing wastes according to claim 1, characterized in that: The absorption control module performs difference calculation on the acquired exhaust pollution amount and intake pollution amount, and obtains the pollution absorption amount according to the result of the difference calculation; The absorption control module obtains the amount of absorption liquid through the liquid flow meter at the absorption processing end, and the absorption control module calculates the ratio of the pollution absorption amount to the absorption liquid amount, and records the result of the ratio calculation as the absorption saturation; The absorption control module compares the absorption saturation with the set saturation lower limit. If the absorption saturation is greater than the set saturation lower limit, an absorption compliance signal is generated. If the absorption saturation does not reach the set saturation lower limit, an absorption non-compliance signal is generated.

5. The system for purifying flue gas from the incineration of chlorine-containing and fluorine-containing wastes according to claim 4, characterized in that: After the absorption control module generates the absorption standard signal, the absorption control module compares the absorption saturation with the set saturation upper limit. If the difference between the absorption saturation and the set saturation upper limit is less than or equal to the set value, an absorption saturation signal is generated; if the difference between the absorption saturation and the set saturation upper limit is greater than the set value, an absorption normal signal is generated.

6. The system for purifying flue gas from the incineration of chlorine-containing and fluorine-containing wastes according to claim 1, characterized in that: The integrated analysis module obtains the normal exhaust signal and the absorption saturation signal at the same time, then obtains the intake speed through the intake control module, and compares the intake speed with the set maximum intake speed. At the same time, the absorption liquid inlet speed is obtained through the absorption control module, and the absorption liquid inlet speed is compared with the maximum inlet speed. If the inlet speed is less than the maximum inlet speed and the air speed is less than the maximum inlet speed, an air intake acceleration signal and an absorption liquid acceleration signal are generated, and the air intake speed and the liquid inlet speed are increased at the same ratio. The integrated analysis module generates an absorption liquid deceleration signal if it simultaneously obtains an absorption substandard signal based on the normal exhaust signal, and sends the absorption liquid deceleration signal to the absorption control module, which reduces the amount of absorption liquid entering the exhaust gas purification device through the liquid infusion pipeline.

7. The system for purifying flue gas from the incineration of chlorine-containing and fluorine-containing wastes according to claim 1, characterized in that: The integrated analysis module generates an absorption liquid acceleration signal if it simultaneously obtains an absorption saturation signal based on the exhaust gas exceeding the standard, and sends the absorption liquid acceleration signal to the absorption control module, and the absorption control module increases the throughput of the absorption liquid; If, on the basis of obtaining the exhaust gas exceeding the standard, the absorption substandard signal or the absorption normal signal is obtained at the same time, an intake deceleration signal is generated and sent to the intake control module, and the intake control module reduces the intake speed of the intake port in the exhaust gas purification device.

8. The system for purifying flue gas from the incineration of chlorine-containing and fluorine-containing wastes according to claim 1, characterized in that: The integrated analysis module adjusts the air intake speed and the absorption liquid speed by setting the acceleration and deceleration ratios to obtain the adjusted air intake speed a or the absorption liquid intake speed b, a=a0*(1+x%), b=b0*(1+y%), wherein a0 is the air intake speed before adjustment, b0 is the absorption liquid intake speed before adjustment, x is the adjustment ratio of the air intake speed, y is the adjustment ratio of the absorption liquid speed, when accelerating, x and y are positive values, and when decelerating, x and y are negative values.

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