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

Abstract

The present application relates to the field of flue gas purification treatment, for solving the problem that incineration flue gas purification equipment cannot be self-adaptively adjusted according to flue gas condition and purification condition, resulting in insufficient purification effect of flue gas purification equipment and increased purification cost, specifically a flue gas purification treatment system for incineration of waste containing chlorine and fluorine, comprising an intake detection module, an absorption control module, an exhaust detection module, an intake control module and an integration analysis module; the present application realizes intelligent supervision of incineration flue gas purification equipment, so that the incineration flue gas purification equipment can adapt to flue gas intake condition to automatically adaptively adjust, so that the intake speed of the flue gas purification equipment and the entering speed of the absorption liquid in the purification equipment change, which can improve the absorption effect, reduce the absorption liquid consumption, ensure the absorption degree of chlorine and fluorine substances in the gas, and achieve the purpose of improving the purification effect of the flue gas purification equipment and reducing the purification cost.

Description

Technical Field

[0001] This invention relates to the field of flue gas purification and treatment, specifically to a flue gas purification and treatment system for incineration of chlorine- and fluorine-containing waste. Background Technology

[0002] Incineration systems can process waste, pollutants, and other hazardous substances, converting them into ash and flue gas. The main purpose of incineration systems is to completely decompose waste through high-temperature combustion, reducing its impact on the environment. Flue gas is one of the gaseous byproducts produced during the incineration process. In addition, trace amounts of heavy metals such as mercury (Hg), HCl, and HF, as well as volatile organic compounds (VOCs), are increasingly attracting attention. These substances may pose potential harm to the environment and human health, so they need to be purified before being emitted. Therefore, with the development of the economy and society and the increasing awareness of environmental protection, pollutants such as mercury, chlorine, fluorine, and volatile organic compounds must be gradually controlled.

[0003] Currently, existing incineration flue gas purification systems only record flue gas emissions and cannot automatically adjust based on monitoring results. This results in a limited functionality of the intelligent system, requiring manual analysis and evaluation when flue gas emissions are abnormal, as well as parameter adjustments to the flue gas purification equipment. This leads to insufficient timeliness in adjusting the purification effect, reducing the purification efficiency of chlorofluorocarbons in the flue gas and causing environmental pollution. Furthermore, when purification capacity is excessive, the lack of effective detection and adjustment methods results in insufficient coupling between the purification capacity and emission rate, leading to high redundant power in the purification equipment and increased purification costs.

[0004] To address the aforementioned technical problems, this application proposes a solution. Summary of the Invention

[0005] This invention provides intelligent monitoring of incineration flue gas purification equipment, enabling the equipment to automatically adjust to the flue gas intake conditions. This alters the intake velocity of the flue gas and the entry velocity of the absorbent liquid within the purification equipment, thereby improving the purification effect and reducing purification costs. It addresses the problem that incineration flue gas purification equipment cannot adaptively adjust to flue gas and purification conditions, leading to insufficient purification effect and increased purification costs. Therefore, this invention proposes a flue gas purification system for incineration of chlorine- and fluorine-containing waste.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A flue gas purification and treatment system for incineration of chlorine- and fluorine-containing waste includes an air intake detection module, which detects the air intake stage of the flue gas purification equipment and acquires air intake data.

[0008] An exhaust gas detection module is used to detect the exhaust gas stage of the flue gas purification equipment, acquire exhaust gas data, and generate an emission signal based on the exhaust gas data.

[0009] The absorption control module acquires the amount of absorbent liquid used in the flue gas purification equipment, compares the amount of absorbent liquid used with the amount of pollutants absorbed to obtain the absorption saturation, and generates an absorption ratio signal based on the comparison of the absorption saturation.

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

[0011] The integrated analysis module can acquire and analyze the absorption ratio signal and emission signal, generate an intake control signal and an absorbent liquid control signal based on the results of the combined analysis, and execute the intake control signal through the intake control module and the absorbent liquid control signal through the absorption control module.

[0012] In a preferred embodiment of the present invention, the intake detection module analyzes the composition of the flue gas at the inlet end to obtain the amount of chlorine-containing waste and fluorine-containing waste in the flue gas, and sums and records them as the intake pollution amount.

[0013] The intake detection module compares the intake pollution level with the set content standard, and generates a high pollution content signal or a low pollution content signal based on 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 and records the current intake speed through the intake detection module.

[0014] In a preferred embodiment of the present invention, the exhaust detection module acquires exhaust data through the exhaust end, and the exhaust data includes the chlorine content and fluorine content of the gas.

[0015] The exhaust detection module adds the chlorine and fluorine content in the exhaust data to obtain the exhaust pollution amount. It then compares the exhaust pollution amount with the set exhaust standard. If the exhaust pollution amount exceeds the set exhaust standard, an exhaust pollution exceeding the standard 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 then sends the exhaust pollution amount to the absorption control module.

[0016] In a preferred embodiment of the present invention, the absorption control module calculates the difference between the acquired exhaust pollution amount and intake pollution amount, and obtains the pollution absorption amount based on the result of the difference calculation.

[0017] The absorption control module obtains the amount of absorbent liquid used through the liquid flow meter at the absorption processing end. The absorption control module calculates the ratio between the amount of pollutant absorbed and the amount of absorbent liquid used, and records the result of the ratio calculation as the absorption saturation.

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

[0019] In a preferred embodiment of the present invention, after generating an absorption compliance signal, the absorption control module compares the absorption saturation with a set upper limit of saturation. If the difference between the absorption saturation and the set upper limit of saturation 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 upper limit of saturation is greater than the set value, a normal absorption signal is generated.

[0020] In a preferred embodiment of the present invention, if the integrated analysis module acquires an absorption saturation signal while acquiring a normal exhaust signal, it acquires the intake speed through the intake control module and compares the intake speed with the set maximum intake speed. At the same time, it acquires the absorbent liquid inlet speed through the absorption control module and compares the absorbent liquid inlet speed with the maximum inlet speed. If the inlet speed is less than the maximum inlet speed and the intake speed is less than the maximum intake speed, it generates an intake acceleration signal and an absorbent liquid acceleration signal and increases the intake speed and inlet speed by the same proportion.

[0021] If the integrated analysis module acquires a normal exhaust signal and simultaneously acquires a substandard absorption signal, it generates an absorbent deceleration signal and sends it to the absorption control module. The absorption control module then reduces the amount of absorbent entering the exhaust gas purification equipment through the infusion pipeline.

[0022] In a preferred embodiment of the present invention, if the integrated analysis module obtains an absorption saturation signal while obtaining an excessive exhaust gas emission signal, it generates an absorption liquid acceleration signal and sends the absorption liquid acceleration signal to the absorption control module, which increases the throughput of the absorption liquid.

[0023] If, in addition to detecting excessive exhaust emissions, a signal indicating substandard absorption or a signal indicating normal absorption is also detected, an intake deceleration signal is generated and sent to the intake control module, which reduces the intake speed at the intake port of the exhaust gas purification equipment.

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

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] 1. This invention enables intelligent monitoring of incineration flue gas purification equipment, allowing the equipment to automatically adapt to flue gas intake conditions and adjust accordingly. This changes the intake speed of the flue gas purification equipment to balance with the absorption speed, thereby improving the purification effect. Simultaneously, the invention analyzes the amount of absorbent liquid used in the flue gas purification equipment and adjusts the liquid intake speed to increase the amount of harmful substances absorbed per unit volume of absorbent liquid, maximizing the utilization of the absorbent liquid and reducing purification costs.

[0027] 2. In this invention, during the operation of the flue gas purification equipment, the intake and exhaust of the purification equipment and the consumption of the absorbent are collected and analyzed to analyze the absorption saturation of the absorbent. Based on the absorption saturation, the amount of absorbent and the intake speed are adjusted to ensure that the absorption degree of the absorbent meets the standard while not exceeding the upper limit of saturation. This can improve the absorption effect, reduce the amount of absorbent used, and ensure the degree of absorption of fluorine and chlorine-containing substances in the gas. Attached Figure Description

[0028] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

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

[0030] Figure 2 This is a system flowchart of the present invention. Detailed Implementation

[0031] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1:

[0033] Please see Figure 1 - Figure 2 As shown, the flue gas purification and treatment system for incineration of chlorine- and fluorine-containing waste 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. Based on the analysis results, the amount of chlorine-containing waste and fluorine-containing waste in the flue gas is obtained. The amounts of chlorine-containing waste and fluorine-containing waste are summed and recorded as the intake pollution amount.

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

[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 fluorine content of the gas.

[0037] The exhaust detection module adds the chlorine and fluorine content in the exhaust data to obtain the exhaust pollution amount. It then compares the exhaust pollution amount with the set exhaust standards. If the exhaust pollution amount exceeds the set exhaust standards, an exhaust pollution exceeding the standard signal is generated. If the exhaust pollution amount does not exceed the set exhaust standards, an exhaust normal signal is generated. The exhaust detection module then 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 intake pollution amount, and obtains the pollution absorption amount based on the result of the difference calculation.

[0039] The absorption treatment end uses a liquid flow meter in the exhaust gas purification equipment to count the amount of absorbent liquid entering the absorption tower and sends the amount of absorbent 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 ratio between the amount of pollutant absorbed and the amount of absorbent liquid used, and records the result of the ratio calculation as the absorption saturation.

[0040] The absorption control module compares the absorption saturation with the set lower limit of saturation. If the absorption saturation is greater than the set lower limit of saturation, an absorption compliance signal is generated. If the absorption saturation does not reach the set lower limit of saturation, an absorption failure signal is generated.

[0041] After generating the absorption compliance signal, the absorption control module compares the absorption saturation with the set upper limit of saturation. If the difference between the absorption saturation and the set upper limit of saturation 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 upper limit of saturation is greater than the set value, a normal absorption signal is generated.

[0042] Example 2:

[0043] Please see Figure 1 - Figure 2 As shown, the integrated analysis module, based on the acquisition of the normal exhaust signal, if it simultaneously acquires the absorption saturation signal, then obtains the intake speed through the intake control module and compares it with the set maximum intake speed. At the same time, it obtains the absorbent liquid inlet speed through the absorption control module and compares it with the maximum inlet speed. If the inlet speed is less than the maximum inlet speed and the intake speed is less than the maximum intake speed, then an intake acceleration signal and an absorbent liquid acceleration signal are generated, thereby increasing the intake speed and inlet speed by the same proportion, thus improving the purification operation speed of the flue gas purification equipment.

[0044] If the integrated analysis module acquires a normal exhaust signal and simultaneously acquires a substandard absorption signal, it generates an absorbent deceleration signal and sends it to the absorption control module. The absorption control module controls the valves in the delivery pipeline to reduce the amount of absorbent entering the exhaust gas purification equipment through the delivery pipeline, so that each unit volume of absorbent can absorb more pollutants, thereby reducing the consumption of absorbent in the exhaust gas purification equipment.

[0045] Example 3:

[0046] Please see Figure 1 - Figure 2 As shown, if the integrated analysis module obtains the exhaust gas exceeding the standard and simultaneously obtains the absorption saturation signal, it generates an absorption liquid acceleration signal and sends the absorption liquid acceleration signal to the absorption control module, which then increases the flow rate of the absorption liquid.

[0047] If, in addition to detecting excessive exhaust emissions, a signal indicating substandard absorption or normal absorption is also detected, an intake deceleration signal is generated and sent to the intake control module. The intake control module reduces the intake speed at the intake port of the exhaust gas purification equipment to slow down the passage speed of the flue gas in the exhaust gas purification equipment, thereby increasing the contact time between the absorbent liquid and the flue gas and improving the absorption effect of pollutants in the flue gas.

[0048] When generating the intake acceleration signal, intake deceleration signal, absorbent acceleration signal, and absorbent deceleration signal, the integrated analysis module adjusts the intake speed and absorbent speed according to the set acceleration and deceleration ratios to obtain the adjusted intake speed 'a' or absorbent inlet speed 'b', where a = a0 * (1 + x%) and b = b0 * (1 + y%), where a0 is the intake speed before adjustment, b0 is the absorbent inlet speed before adjustment, x is the adjustment ratio of the intake speed, and y is the adjustment ratio of the absorbent 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 merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A flue gas purification and treatment system for incineration of chlorine- and fluorine-containing waste, characterized in that, It includes an air intake detection module, which detects the air intake stage of the flue gas purification equipment and acquires air intake data; An exhaust gas detection module is used to detect the exhaust gas stage of the flue gas purification equipment, acquire exhaust gas data, and generate an emission signal based on the exhaust gas data. The absorption control module acquires the amount of absorbent liquid used in the flue gas purification equipment, compares the amount of absorbent liquid used with the amount of pollutants absorbed to obtain the absorption saturation, and generates an absorption ratio signal based on the comparison of the absorption saturation. An air intake control module is used to control the air intake speed of the flue gas purification equipment according to a signal. The integrated analysis module can acquire and analyze the absorption ratio signal and emission signal, generate an intake control signal and an absorbent liquid control signal based on the results of the combined analysis, and execute the intake control signal through the intake control module and the absorbent liquid control signal through the absorption control module.

2. The flue gas purification and treatment system for incineration of chlorine- and fluorine-containing waste according to claim 1, characterized in that, The intake detection module analyzes the composition of the flue gas at the inlet end, obtains the amount of chlorine-containing waste and fluorine-containing waste in the flue gas, sums and counts them, and records them as the intake pollution amount. The intake detection module compares the intake pollution level with the set content standard, and generates a high pollution content signal or a low pollution content signal based on 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 and records the current intake speed through the intake detection module.

3. The flue gas purification system for incineration of chlorine- and fluorine-containing waste according to claim 1, characterized in that, The exhaust detection module acquires exhaust data through the exhaust end, and the exhaust data includes the chlorine content and fluorine content of the gas. The exhaust detection module adds the chlorine and fluorine content in the exhaust data to obtain the exhaust pollution amount. It then compares the exhaust pollution amount with the set exhaust standard. If the exhaust pollution amount exceeds the set exhaust standard, an exhaust pollution exceeding the standard 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 then sends the exhaust pollution amount to the absorption control module.

4. The flue gas purification system for incineration of chlorine- and fluorine-containing waste according to claim 1, characterized in that, The absorption control module calculates the difference between the acquired exhaust pollution amount and intake pollution amount, and obtains the pollution absorption amount based on the result of the difference calculation. The absorption control module obtains the amount of absorbent liquid used through the liquid flow meter at the absorption processing end. The absorption control module calculates the ratio between the amount of pollutant absorbed and the amount of absorbent liquid used, and records the result of the ratio calculation as the absorption saturation. The absorption control module compares the absorption saturation with a set lower limit of saturation. If the absorption saturation is greater than the set lower limit of saturation, an absorption compliance signal is generated. If the absorption saturation does not reach the set lower limit of saturation, an absorption failure signal is generated.

5. The flue gas purification and treatment system for incineration of chlorine- and fluorine-containing waste according to claim 4, characterized in that, After generating the absorption compliance signal, the absorption control module compares the absorption saturation with the set upper limit of saturation. If the difference between the absorption saturation and the set upper limit of saturation 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 upper limit of saturation is greater than the set value, a normal absorption signal is generated.

6. The flue gas purification system for incineration of chlorine- and fluorine-containing waste according to claim 1, characterized in that, Based on the acquisition of the normal exhaust signal, if the integrated analysis module also acquires the absorption saturation signal, it acquires the intake speed through the intake control module and compares the intake speed with the set maximum intake speed. At the same time, it acquires the absorbent liquid inlet speed through the absorption control module and compares the absorbent liquid inlet speed with the maximum inlet speed. If the inlet speed is less than the maximum inlet speed and the intake speed is less than the maximum intake speed, it generates an intake acceleration signal and an absorbent liquid acceleration signal, and increases the intake speed and inlet speed by the same proportion. If the integrated analysis module acquires a normal exhaust signal and simultaneously acquires a substandard absorption signal, it generates an absorbent deceleration signal and sends it to the absorption control module. The absorption control module then reduces the amount of absorbent entering the exhaust gas purification equipment through the infusion pipeline.

7. The flue gas purification system for incineration of chlorine- and fluorine-containing waste according to claim 1, characterized in that, If the integrated analysis module obtains an absorption saturation signal while also obtaining an exhaust gas exceeding the standard, it generates an absorption liquid acceleration signal and sends the absorption liquid acceleration signal to the absorption control module, which increases the flow rate of the absorption liquid. If, in addition to detecting excessive exhaust emissions, a signal indicating substandard absorption or a signal indicating normal absorption is also detected, an intake deceleration signal is generated and sent to the intake control module, which reduces the intake speed at the intake port of the exhaust gas purification equipment.

8. The flue gas purification and treatment system for incineration of chlorine- and fluorine-containing waste according to claim 1, characterized in that, The integrated analysis module adjusts the air intake speed and absorbent liquid speed by setting acceleration and deceleration ratios to obtain the adjusted air intake speed a or absorbent liquid intake speed b, where a = a0*(1+x%) and b = b0*(1+y%), where a0 is the air intake speed before adjustment, b0 is the absorbent liquid air intake speed before adjustment, x is the adjustment ratio of the air intake speed, and y is the adjustment ratio of the absorbent liquid speed. During acceleration, x and y are positive values, and during deceleration, x and y are negative values.

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