Integrated system and method for centralized exhaust gas purification, treatment and monitoring

Abstract

The present invention provides an integrated system and method for monitoring centralized purification treatment of waste gas, including: gas collection equipment, exhaust pipe, particulate dust filter, waste gas monitoring equipment, water tank, water atomizing nozzle, waste gas infiltration filter wall, wastewater collection box, induced draft fan, monitoring equipment and central control device. The waste gas passes through the gas collection equipment, exhaust pipe, particulate dust filter, waste gas monitoring equipment and waste gas infiltration filter wall, wastewater collection box, induced draft fan in sequence, the monitoring equipment detects the component concentration data of the waste gas and forwards it to the central control device, and the central control device sends a water spraying instruction to the water tank and the water atomizing nozzle based on the component concentration data, so that the water tank and the water atomizing nozzle spray water to the waste gas infiltration filter wall. The present invention is used to collect disorderly discharged toxic and harmful waste gas by setting up gas collection equipment, change the original emission mode, change the unorganized to organized and then enter the waste gas treatment system, monitor the waste gas concentration in real time, spray water in time, and reduce environmental pollution.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental protection dust removal, and in particular to an integrated system and method for centralized purification, treatment and monitoring of waste gas. Background Art

[0002] Traditional air pollutants are mainly particulate matter, nitrogen dioxide, sulfur dioxide, etc., which are mostly generated by combustion processes or heating equipment. The waste gas emitted by chemical companies contains many types of pollutants, including both particulate pollutants and gaseous pollutants. The main particulate pollutants are fly ash, black smoke, dust, soot, water mist, etc., and the main gaseous pollutants are carbon oxides, sulfur oxides, nitrogen oxides, etc. Among them, sulfur oxides are mainly SO 2 , mainly from fuel (coal, coke, natural gas, diesel, etc.), and also from the roasting and smelting process of sulfide ores; nitrogen oxides are mainly NO, NO 2 , mainly from the production process of industrial furnaces; carbon oxides are mainly CO and CO 2 , mainly from the fuel combustion process. The source of unorganized emission of waste gas is scattered, with many pollution-producing links and points, making it difficult to implement effective collection, let alone treatment. At the same time, the waste gas emissions from each point source are small, and the enterprises neither pay attention to nor are willing to treat them. While controlling the emission of unorganized particulate matter, the control of waste gas in the emissions is often ignored.

[0003] In addition, with the rapid development of my country's metallurgical industry, the accumulated stockpiles and newly added solid wastes generated by metallurgy are also increasing. The solid wastes generated by the iron and steel metallurgical industry mainly include blast furnace slag, steel slag, converter slag, etc. The amount of steel slag dumped in China is about 300 million tons, covering an area of ​​30,000 mu. In 2002, the total steel output in China was about 83.89 million tons, but there was a lack of full-scale and high-value-added utilization technology, especially the comprehensive utilization of slag and slag, with an average utilization rate of about 60%. As an industrial sector with a large amount of solid waste discharge, the quality of the metallurgical industry directly affects the level of environmental governance.

[0004] Therefore, it is hoped that the problem of how to treat exhaust gas can be solved. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide an integrated system and method for centralized purification, treatment and monitoring of waste gas, so as to solve the problem of how to treat waste gas in the prior art.

[0006] To achieve the above-mentioned purpose and other related purposes, the present invention provides an integrated system for centralized purification, treatment and monitoring of exhaust gas, the system comprising: an air collecting device, an exhaust pipe, a particulate dust filter, an exhaust gas monitoring device, a water tank, a water atomizing nozzle, an exhaust gas infiltration filter wall, a wastewater collection box, an induced draft fan, a monitoring device and a central control device; the air collecting device is used to collect exhaust gas; the exhaust pipe is connected to the air collecting device, and is used to transport the exhaust gas to the particulate dust filter; the exhaust gas monitoring device is arranged between the particulate dust filter and the exhaust gas infiltration filter wall, and is used to identify the first component concentration data of the exhaust gas and upload it to the central control device; the water tank and the water The atomizing nozzle is connected to spray water to the exhaust gas infiltration filter wall based on the water spraying instruction of the central control device; the wastewater collecting box is arranged below the exhaust gas infiltration filter wall to receive water flowing down from the exhaust gas infiltration filter wall; the induced draft fan is used to collect the exhaust gas passing through the exhaust gas infiltration filter wall and transmit the exhaust gas to the monitoring device; the monitoring device is used to detect the second component concentration data of the exhaust gas and send the second component concentration data to the central control device, and the central control device is used to send a water spraying instruction to the water tank and the water atomizing nozzle based on the second component concentration data, so that the water tank and the water atomizing nozzle spray water to the exhaust gas infiltration filter wall.

[0007] To achieve the above-mentioned purpose, the present invention also provides an integrated method for centralized purification, treatment and monitoring of exhaust gas, comprising the following steps: collecting exhaust gas through an air collection device; connecting the exhaust gas collection device through an exhaust pipe, the exhaust pipe being used to transport the exhaust gas to a particulate dust filter; arranging an exhaust gas monitoring device between the particulate dust filter and the exhaust gas infiltration filter wall, the exhaust gas monitoring device being configured to identify the first component concentration data of the exhaust gas and upload it to a central control device; connecting a water tank and a water atomizing nozzle for spraying water to the exhaust gas infiltration filter wall based on a water spray instruction of the central control device. Spraying water; setting a wastewater collection box below the exhaust gas infiltration filter wall, the wastewater collection box is used to receive water flowing down from the exhaust gas infiltration filter wall; collecting the exhaust gas passing through the exhaust gas infiltration filter wall by an induced draft fan, and transmitting the exhaust gas to the monitoring device; detecting the second component concentration data of the exhaust gas by the monitoring device, sending the second component concentration data to the central control device, the central control device is used to send a water spraying instruction to the water tank and the water atomizing nozzle based on the second component concentration data, so that the water tank and the water atomizing nozzle spray water to the exhaust gas infiltration filter wall.

[0008] As described above, the integrated system and method for centralized purification, treatment and monitoring of waste gas of the present invention has the following beneficial effects: it is used to collect disorderly emitted toxic and harmful waste gases by setting up gas collection equipment, change the original emission mode, transform the unorganized into organized and then enter the waste gas treatment system, monitor the waste gas concentration in real time, spray water at the right time, and reduce environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 Shown is a schematic structural diagram of an integrated system for centralized purification, treatment and monitoring of waste gas according to an embodiment of the present invention;

[0010] Figure 2 Shown is a schematic flow chart of an integrated method for centralized purification, treatment and monitoring of waste gas according to an embodiment of the present invention.

[0011] Component number description

[0012] 1 Gas gathering equipment

[0013] 2 Exhaust duct

[0014] 3 Particle dust filter

[0015] 4. Exhaust gas monitoring equipment

[0016] 5 Water tank

[0017] 6 Water atomizing nozzles

[0018] 7 Exhaust gas penetration filter wall

[0019] 8 Wastewater collection tank

[0020] 9 Draft fan

[0021] 10 Monitoring Equipment DETAILED DESCRIPTION

[0022] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0023] It should be noted that the illustrations provided in the following embodiments are only used to illustrate the basic concept of the present invention in a schematic manner. Therefore, the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0024] The integrated system and method for centralized purification, treatment and monitoring of waste gas of the present invention are used to collect disorderly discharged toxic and harmful waste gas, change the original emission mode, transform the disorderly discharge into organized discharge, and then enter the waste gas treatment system, monitor the waste gas concentration in real time, spray water at the right time, and reduce environmental pollution.

[0025] like Figure 1 As shown, in one embodiment, the integrated system for centralized purification, treatment and monitoring of waste gas of the present invention includes: gas collecting equipment 1, exhaust pipe 2, particulate dust filter 3, waste gas monitoring equipment 104, water tank 5, water atomizing nozzle 6, waste gas penetration filter wall 7, wastewater collection box 8, induced draft fan 9, monitoring equipment 10 and central control device.

[0026] Specifically, the gas collection device 1 is used to collect waste gas. Specifically, the waste gas includes: waste gas discharged by chemical enterprises, and the waste gas components include: particulate pollutants and gaseous pollutants. The particulate pollutants mainly include fly ash, black smoke, dust, smoke, water mist, etc., and the gaseous pollutants mainly include carbon oxides, sulfur oxides, nitrogen oxides, etc. Among them, sulfur oxides are mainly SO 2 , mainly from fuel (coal, coke, natural gas, diesel, etc.), and also from the roasting and smelting process of sulfide ores; nitrogen oxides are mainly NO, NO 2 , mainly from the production process of industrial furnaces; carbon oxides are mainly CO and CO 2 , mainly from the fuel combustion process. The source of the waste gas is scattered, with many pollution-producing links and points. Therefore, the gas collection device 1 is used to collect the waste gas emitted unorganizedly from each emission point.

[0027] Specifically, the exhaust duct 2 is connected to the gas collecting device 1 and is used to transport the exhaust gas to the particle dust filter 3. The particle dust filter 3 is made of 0.5-5μm thick fibers that are spaced 5-50μm apart and intertwined. For example, the particle dust filter 3 is a HEPA filter. HEPA (High efficiency particulate air Filter) means high efficiency air filter in Chinese. The filter that meets the HEPA standard has an efficiency of 99.7% for 0.1 micron and 0.3 micron. The characteristic of the HEPA filter is that air can pass through, but fine particles cannot pass through. The HEPA filter can remove particles with a diameter of less than 0.3 microns (1 / 200 of the diameter of a hair) with an efficiency of more than 99.97%, and is the most effective filtering medium for pollutants such as smoke, dust and bacteria. HEPA is divided into five materials: PP filter paper, glass fiber, composite PP PET filter paper, melt-blown polyester non-woven fabric and melt-blown glass fiber. Features: large wind resistance, large dust holding capacity, high filtration accuracy, can be processed into various sizes and shapes according to customer needs, suitable for different models. HEPA filter relies on the adsorption effect of fibers to "stick" PM2.5 dust. The space between fibers allows airflow to pass smoothly, but due to the layered arrangement, fine particles inevitably hit a certain fiber that is randomly interwoven, and are thus adsorbed, and the intermolecular van der Waals force between the fiber and the dust is sufficient to overcome the influence of airflow.

[0028] Specifically, the exhaust gas monitoring device 104 is arranged between the particulate dust filter 3 and the exhaust gas infiltration filter wall 7, and is used to identify the first component concentration data of the exhaust gas and upload it to the central control device. The exhaust gas monitoring device 104 is connected to the central control device for communication. The first component concentration data includes: components and the concentrations corresponding to each component.

[0029] Specifically, the water tank 5 is connected to the water atomizing nozzle 6, and is used to spray water to the exhaust gas infiltration filter wall 7 based on the water spraying instruction of the central control device. Specifically, the water tank 5 and the water atomizing nozzle 6 are connected to the central control device in communication, and the water atomizing nozzle 6 is adjusted to rotate at 180-360 degrees based on the rotation instruction of the central control device, and the water atomizing nozzle 6 adjusts the water spraying rate based on the adjustment instruction of the central control device. In this way, the spraying range of the water atomizing nozzle 6 can fully cover the exhaust gas infiltration filter wall 7, so that the exhaust gas infiltration filter wall 7 is wetted more evenly. The water atomizing nozzle 6 adjusts the water spraying rate based on the adjustment instruction of the central control device. Specifically, the water spraying rate can be adjusted by the water pump pressure device, so that the central control device can judge whether it is necessary to speed up or slow down the water spraying rate based on the concentration of the first component and the concentration of the second component. For example, when it is detected that the concentration of the first component is high, the water spraying rate can be accelerated, and when it is detected that the concentration of the second component is high, the water spraying rate can also be accelerated.

[0030] Specifically, the water tank 5 is a corrosion-resistant structure, and the amount of water stored can satisfy the simultaneous operation of all the water spraying devices of the system for 1-5 hours.

[0031] Specifically, after the exhaust gas is filtered through the particulate dust filter 3, SO 2 ,NO,NO 2 ,CO,CO 2 When the acidic waste gas enters the waste gas penetration filter wall 7, the water atomization nozzle 6 above the waste gas penetration filter wall 7 sprays water mist.

[0032] Specifically, the particle dust filter 3, the exhaust gas monitoring device 104 and the exhaust gas infiltration filter wall 7 are sequentially arranged in the treatment box, and the treatment box is provided with a first through hole on the side close to the particle dust filter 3, and the first through hole is used to connect the exhaust pipe 2, and the treatment box is provided with a second through hole on the side close to the exhaust gas infiltration filter wall 7, and the second through hole is used to connect the induced draft fan 9. In this way, in the closed environment of the treatment box, the solid particles and acidic gases in the exhaust gas can be better absorbed.

[0033] Specifically, the exhaust gas penetration filter wall 7 is formed by mixing waste tailings and alkaline solution. The waste tailings are metallurgical slag after step-by-step utilization, and the components of the waste tailings include: metal oxides such as calcium oxide, iron oxide, magnesium oxide, and manganese oxide. The preparation method of the exhaust gas penetration filter wall 7 is as follows: pre-treat the waste tailings, and classify them into slag particles of different particle sizes through a vibrating screen, coarse materials >5mm, fine materials 0.1-5mm, and gelling materials <0.1mm. Secondly, the gelling material is evenly mixed with the alkaline solution, and then the fine material is added and mixed evenly again to form a gelled slurry. Finally, an appropriate amount of coarse material is added and mixed evenly again, and then poured into a wall-shaped mold and allowed to stand to form a permeable solid baffle wall of appropriate strength. Specifically, the mixing ratio is: 0.3-0.5 parts of alkaline solution are mixed with 1 part of gelling material. 100kg / m 3 Fine material and 200kg / m 3 Up to 300kg / m 3 Gel and 100kg / m 3 Alkaline solution mixed. 500kg / m 3 The fine material, gelling material, alkaline solution formed by the gelling slurry and 1500-2000kg / m 3 of coarse materials. The exhaust gas penetration filter wall 7 is permeable, and the permeability is positively correlated with the particle size of the coarse materials. Usually, if the coarse material particle size is 5-10mm, the porosity can reach 20% and the permeability is 10mm / s; if the coarse material particle size is 10-15mm, the porosity can reach 30% and the permeability is 25mm / s. With the increase of effective porosity, the number of connected pores increases, the actual contact area of ​​the internal fluid increases, and thus the growth rate of the permeability coefficient continues to increase. However, the larger the coarse material particle size, the greater the porosity, which affects the mechanical strength of the wall. Therefore, for different environments, different exhaust gases, and tailings from different sources, different mixing ratios need to be considered to produce effective permeable exhaust gas treatment walls.

[0034] Specifically, the wastewater collection box 8 is arranged below the waste gas infiltration filter wall 7, and is used to receive water flowing down from the waste gas infiltration filter wall 7. The water tank 5 and the water atomizing nozzle 6 can moisten the entire interior of the waste gas infiltration filter wall 7, so that the waste gas infiltration filter wall 7 forms a moist alkaline space, and the acid gas is quickly treated by acid-base chemical reaction, and the wastewater after the reaction is collected in the wastewater collection box 8 at the bottom of the wall and connected to the wastewater treatment system. After being treated, the waste gas passes through the induced draft fan 9, and the induced draft fan 9 is used to collect the waste gas passing through the waste gas infiltration filter wall 7, and transmit the waste gas to the monitoring device 10, and the induced draft fan 9 empties the purified gas in the waste gas infiltration filter wall 7. Finally, the monitoring device 10 installed at the end exhaust port of the induced draft fan 9 is used to check the treatment effect in real time.

[0035] Specifically, the monitoring device 10 is used to detect the second component concentration data of the exhaust gas, and send the second component concentration data to the central control device. The central control device is used to send a water spraying instruction to the water tank 5 and the water atomizing nozzle 6 based on the second component concentration data, so that the water tank 5 and the water atomizing nozzle 6 spray water toward the exhaust gas infiltration filter wall 7.

[0036] Specifically, the central control device is also used to compare the first component concentration data and the second component concentration data to obtain the filtering effect of the integrated system for centralized exhaust gas purification, treatment and monitoring.

[0037] Specifically, the monitoring device 10 is a CEMS monitoring device 10, which monitors and identifies acid gases and monitors SO 2 ,NO,NO 2 ,CO,CO 2 The acidic waste gas concentration is the second component concentration data; the monitoring device 10 is connected to the water tank 5, the water atomizing nozzle 6, and the central control device through the wireless network expansion control module. The central control device has a basic logic unit module that can realize the sequential logic function, and its logic function can be realized by loading programming data into the internal static storage unit. The value stored in the memory unit determines the logic function of the logic unit and the connection mode between each module or between the module and the I / O device, and finally determines the combination logic function that can be realized by programming. The central control device can be used to set the programming program, and the exhaust gas pollution monitoring parameters can be stored in the memory of the control module. When the collected parameter value exceeds the preset programming program, the signal is fed back to the single-chip microcomputer, and the control module controls the execution module to control the water atomizing nozzle 6 to spray water according to the preset coding program; the control module allows countless programming; the central control device has a wireless network (4G / 5G) function, which can realize the upload of polluted gas identification monitoring information, and transmit the water spraying instruction to the water atomizing nozzle 6 to make it spray water. By using technologies such as gas monitoring and identification, the operating efficiency of the integrated system for centralized purification, treatment and monitoring of waste gas is improved, and the system has the advantages of simple installation, sufficient sources of purification and treatment materials, and centralized treatment of unorganized waste gas. Therefore, the present invention effectively solves the purification problem of the integrated system for centralized purification, treatment and monitoring of waste gas, and overcomes the problem of recycling slag generated in the smelting process of steel enterprises, and has high industrial utilization value.

[0038] like Figure 2 As shown, in one embodiment, the integrated method for centralized purification, treatment and monitoring of waste gas of the present invention comprises the following steps:

[0039] Step S21, collecting exhaust gas through a gas collecting device.

[0040] Step S22, connecting with the gas collecting device through an exhaust pipe, wherein the exhaust pipe is used to transport the exhaust gas to the particulate dust filter;

[0041] Step S23, installing an exhaust gas monitoring device between the particulate dust filter and the exhaust gas infiltration filter wall, wherein the exhaust gas monitoring device is configured to identify the first component concentration data of the exhaust gas and upload it to the central control device;

[0042] Step S24, connecting a water tank and a water atomizing nozzle to spray water to the exhaust gas infiltration filter wall based on a water spraying instruction of the central control device;

[0043] Step S25, setting a wastewater collection box below the exhaust gas infiltration filter wall, the wastewater collection box is used to receive water flowing down from the exhaust gas infiltration filter wall;

[0044] Step S26, collecting the exhaust gas that passes through the exhaust gas infiltration filter wall by means of an induced draft fan, and transmitting the exhaust gas to the monitoring device;

[0045] Step S27, detecting the second component concentration data of the exhaust gas through a monitoring device, and sending the second component concentration data to a central control device, wherein the central control device is used to send a water spraying instruction to the water tank and the water atomizing nozzle based on the second component concentration data, so that the water tank and the water atomizing nozzle spray water toward the exhaust gas penetration filter wall.

[0046] Specifically, the water tank and the water atomizing nozzle are communicatively connected with the central control device, the water atomizing nozzle is rotated and adjusted within 180-360 degrees based on the rotation instruction of the central control device, and the water atomizing nozzle adjusts the water spraying rate based on the adjustment instruction of the central control device.

[0047] Specifically, the particle dust filter is formed by fibers with a thickness of 0.5-5 μm and interlaced with each other at a spacing of 5-50 μm.

[0048] Specifically, the waste gas infiltration filter wall is formed by mixing waste tailings and alkaline solution.

[0049] Specifically, the particulate dust filter, the exhaust gas monitoring equipment and the exhaust gas infiltration filter wall are sequentially arranged in the treatment box, and a first through hole is provided on the side of the treatment box close to the particulate dust filter, and the first through hole is used to connect the exhaust duct, and a second through hole is provided on the side of the treatment box close to the exhaust gas infiltration filter wall, and the second through hole is used to connect the induced draft fan.

[0050] It should be noted that the principle of the above method corresponds one-to-one to the structure of the above-mentioned integrated system for centralized purification, treatment and monitoring of exhaust gas, so it will not be repeated here.

[0051] In summary, the integrated system and method for centralized purification, treatment and monitoring of waste gas of the present invention is used to collect disorderly discharged toxic and harmful waste gas by setting up gas collection equipment, change the original emission mode, change the disorderly to organized, and then enter the waste gas treatment system, monitor the waste gas concentration in real time, spray water at the right time, and reduce environmental pollution. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has a high industrial utilization value.

[0052] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An integrated system for centralized exhaust gas purification, treatment and monitoring. It is characterized in that The system includes: gas collection equipment, exhaust pipes, particulate dust filters, exhaust gas monitoring equipment, water tanks, water atomizing nozzles, exhaust gas penetration filter walls, wastewater collection boxes, induced draft fans, monitoring equipment and central control devices; The gas collecting device is used to collect waste gas; The exhaust duct is connected to the gas collecting device and is used to transport the exhaust gas to the particle dust filter; The exhaust gas monitoring device is arranged between the particulate dust filter and the exhaust gas infiltration filter wall, and is used to identify the first component concentration data of the exhaust gas and upload it to the central control device; The water tank is connected to the water atomizing nozzle and is used to spray water to the exhaust gas infiltration filter wall based on the water spraying instruction of the central control device; The wastewater collection box is arranged below the waste gas infiltration filter wall, and is used to receive water flowing down from the waste gas infiltration filter wall; wherein, the inside of the waste gas infiltration filter wall is moistened by the water tank and the water atomizing nozzle, and the waste gas infiltration filter wall forms a moist alkaline space, and the acid gas is treated by acid-base chemical reaction, and the wastewater after the reaction is collected by the wastewater collection box and connected to the wastewater treatment system; The induced draft fan is used to collect the exhaust gas that passes through the exhaust gas infiltration filter wall and transmit the exhaust gas to the monitoring device; The monitoring device is used to detect the concentration data of the second component of the exhaust gas, and send the concentration data of the second component to the central control device. The central control device is used to send a water spraying instruction to the water tank and the water atomizing nozzle based on the concentration data of the second component, so that the water tank and the water atomizing nozzle spray water to the exhaust gas infiltration filter wall; the central control device is also used to compare the concentration data of the first component and the concentration data of the second component to obtain the filtering effect of the integrated system for centralized purification, treatment and detection of exhaust gas; the central control device is also used to determine whether it is necessary to speed up or slow down the water spraying rate based on the above-mentioned concentration data of the first component and the concentration data of the second component; The porosity of the waste gas permeation filter wall is 20-30%, and the permeability is 10-25 mm / s; the waste gas permeation filter wall is formed by mixing waste tailings and alkaline solution, and the waste tailings are metallurgical slag.

2. According to claim 1, the integrated system for centralized purification, treatment and monitoring of waste gas, Features: The water tank and the water atomizing nozzle are communicatively connected with the central control device. The water atomizing nozzle is rotated and adjusted within a range of 180-360 degrees based on a rotation instruction of the central control device. The water atomizing nozzle adjusts a water spraying rate based on an adjustment instruction of the central control device.

3. According to claim 1, the integrated system for centralized purification, treatment and monitoring of waste gas, Features: The particle dust filter is formed by fibers with a thickness of 0.5-5 μm and interlaced with each other at a spacing of 5-50 μm.

4. According to claim 1, the integrated system for centralized purification, treatment and monitoring of waste gas, Features: The particulate dust filter, the exhaust gas monitoring equipment and the exhaust gas penetration filter wall are sequentially arranged in the treatment box, and a first through hole is provided on the side of the treatment box close to the particulate dust filter, and the first through hole is used to connect the exhaust duct, and a second through hole is provided on the side of the treatment box close to the exhaust gas penetration filter wall, and the second through hole is used to connect the induced draft fan.

5. An integrated method for centralized purification, treatment and monitoring of waste gas, It is characterized in that The following steps are involved: Collecting exhaust gas through gas collection equipment; connected to the gas collecting device via an exhaust pipe, the exhaust pipe being used to transport exhaust gas to a particle dust filter; An exhaust gas monitoring device is arranged between the particulate dust filter and the exhaust gas infiltration filter wall, wherein the exhaust gas monitoring device is arranged to identify the concentration data of the first component of the exhaust gas and upload it to the central control device; Connecting a water tank and a water atomizing nozzle to spray water to the exhaust gas infiltration filter wall based on a water spray instruction of the central control device; A wastewater collection box is arranged below the waste gas infiltration filter wall, and the wastewater collection box is used to receive water flowing down from the waste gas infiltration filter wall; wherein the inside of the waste gas infiltration filter wall is moistened by the water tank and the water atomizing nozzle, and the waste gas infiltration filter wall forms a moist alkaline space, and the acid gas is treated by acid-base chemical reaction, and the wastewater after the reaction is collected by the wastewater collection box and connected to the wastewater treatment system; collecting the exhaust gas passing through the exhaust gas infiltration filter wall by means of an induced draft fan, and transmitting the exhaust gas to the monitoring device; Detecting the concentration data of the second component of the exhaust gas through the monitoring equipment, sending the concentration data of the second component to the central control device, the central control device is used to send a water spraying instruction to the water tank and the water atomizing nozzle based on the concentration data of the second component, so that the water tank and the water atomizing nozzle spray water to the exhaust gas infiltration filter wall; comparing the concentration data of the first component and the concentration data of the second component to obtain the filtering effect of the integrated system for centralized purification, treatment and detection of exhaust gas; judging whether it is necessary to speed up or slow down the water spraying rate based on the above-mentioned concentration data of the first component and the concentration data of the second component; The porosity of the waste gas permeation filter wall is 20-30%, and the permeability is 10-25 mm / s; the waste gas permeation filter wall is formed by mixing waste tailings and alkaline solution, and the waste tailings are metallurgical slag.

6. The integrated method for centralized purification, treatment and monitoring of waste gas according to claim 5, It is characterized in that The water tank and the water atomizing nozzle are communicatively connected with the central control device. The water atomizing nozzle is rotated and adjusted within a range of 180-360 degrees based on a rotation instruction of the central control device. The water atomizing nozzle adjusts a water spraying rate based on an adjustment instruction of the central control device.

7. The integrated method for centralized purification, treatment and monitoring of waste gas according to claim 5, It is characterized in that The particle dust filter is formed by fibers with a thickness of 0.5-5 μm and interlaced with each other at a spacing of 5-50 μm.

8. The integrated method for centralized purification, treatment and monitoring of waste gas according to claim 5, It is characterized in that The particulate dust filter, the exhaust gas monitoring equipment and the exhaust gas penetration filter wall are sequentially arranged in the treatment box, and a first through hole is provided on the side of the treatment box close to the particulate dust filter, and the first through hole is used to connect the exhaust duct, and a second through hole is provided on the side of the treatment box close to the exhaust gas penetration filter wall, and the second through hole is used to connect the induced draft fan.

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