Flue gas filtering main body device and desulfurization and denitrification equipment adopting ion exchange method

Abstract

The utility model discloses a flue gas filtering main body device and ion exchange method desulfurization and denitrification equipment, and relates to the technical field of flue gas treatment.The end, deviating from a gas outlet, of a first resin filtering layer is connected with the upper top wall of a box body structure, and the end, deviating from the gas outlet, of a second resin filtering layer is connected with the lower bottom wall of the box body structure; the other end of the first resin filter layer is connected with the other end of the second resin filter layer, the first resin filter layer and the second resin filter layer are arranged in parallel, and a first flue gas channel is formed between the first resin filter layer and the second resin filter layer; smoke entering the box body structure from the air inlet passes through the first resin filtering layer and the second resin filtering layer from the first smoke channel and then goes out from the air outlet. By means of the design, the filtering area is increased on the basis that the size of the smoke filtering body device does not need to be increased.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of flue gas treatment, in particular to a flue gas filtering main device and ion exchange method desulfurization and denitrification equipment. BACKGROUND

[0002] The ion exchange method flue gas desulfurization and denitrification is based on the basic principle of ion exchange, changes the form of exchange groups on the ion exchange material, and makes the ion exchange material have strong oxidizing agent effect as an oxidizing agent and have ion exchange function at the same time. When flue gas passes through the ion resin filtering layer, SO2 and NO in the flue gas are first oxidized into SO3 and NO2 which are easily soluble in water, and then react with water to generate H2SO4 and HNO3, and then SO4 2- and NO3 1- are adsorbed by the resin filtering layer, so that the purpose of desulfurization and denitrification is achieved.

[0003] The ion exchange desulfurization and denitrification equipment is mainly used for flue gas treatment of large industrial and mining enterprises such as coal-fired power generation, iron blast furnace and cement plant. The flue gas emission is large, so it is urgent to design a flue gas filtering main device with large filtering area and small occupied volume. CONTENT OF THE INVENTION

[0004] The application aims to provide a flue gas filtering main device and ion exchange method desulfurization and denitrification equipment, which increases the filtering area without increasing the volume of the flue gas filtering main device.

[0005] The application discloses a flue gas filtering main device, which is used for filtering flue gas and comprises a box body structure, a liquid inlet, a liquid outlet, an air inlet, an air outlet and a resin filtering layer, wherein the resin filtering layer comprises a first resin filtering layer and a second resin filtering layer; the air inlet and the air outlet are arranged on the left and right sides of the box body structure respectively, and the liquid inlet and the liquid outlet are arranged on the left and right sides of the box body structure respectively, wherein the liquid inlet is located in the upper half of the box body structure and the liquid outlet is located in the lower half of the box body structure.

[0006] One end of the first resin filtering layer, which is away from the air outlet, is connected with the upper top wall of the box body structure, one end of the second resin filtering layer, which is away from the air outlet, is connected with the lower bottom wall of the box body structure, the other end of the first resin filtering layer is connected with the other end of the second resin filtering layer, and the first resin filtering layer and the second resin filtering layer are arranged in parallel to form a first flue gas channel between the first resin filtering layer and the second resin filtering layer; flue gas entering the box body structure from the air inlet can pass through the first resin filtering layer and the second resin filtering layer from the first flue gas channel and then go out from the air outlet.

[0007] Optionally, the resin filter layer further comprises a third resin filter layer and a fourth resin filter layer, the third resin filter layer is located between the fourth resin filter layer and the second resin filter layer, and the first resin filter layer, the second resin filter layer, the third resin filter layer and the fourth resin filter layer are parallel and spaced apart; one end of the second resin filter layer away from the air outlet is connected with the lower bottom wall of the box structure through the third resin filter layer and the fourth resin filter layer;

[0008] The other end of the third resin filter layer is connected with the other end of the fourth resin filter layer.

[0009] The third resin filter layer and the fourth resin filter layer form a second flue gas passage; the flue gas entering the box structure from the air inlet also passes through the third resin filter layer and the fourth resin filter layer from the second flue gas passage and then goes out from the air outlet.

[0010] Optionally, the flue gas filter main device further comprises a first barrier wall, a second barrier wall, a third barrier wall, a fourth barrier wall and a fifth barrier wall; the two ends of the first barrier wall are respectively connected with the upper top wall of the box structure and one end of the first resin filter layer close to the air inlet; the two ends of the second barrier wall are respectively connected with one end of the first resin filter layer close to the air outlet and one end of the second resin filter layer close to the air outlet; the two ends of the third barrier wall are respectively connected with one end of the second resin filter layer close to the air inlet and one end of the third resin filter layer close to the air inlet; the two ends of the fourth barrier wall are respectively connected with one end of the third resin filter layer close to the air outlet and one end of the fourth resin filter layer close to the air outlet; the two ends of the fifth barrier wall are respectively connected with one end of the fourth resin filter layer close to the air inlet and the upper top wall of the box structure.

[0011] Optionally, the width of the first resin filter layer, the second resin filter layer, the third resin filter layer and the fourth resin filter layer is 500 cm, and the distance between the left and right ends of the first resin filter layer, the second resin filter layer, the third resin filter layer and the fourth resin filter layer and the air inlet and the air outlet is 80 cm, and the thickness of the first resin filter layer, the second resin filter layer, the third resin filter layer and the fourth resin filter layer is 28-30 cm.

[0012] Optionally, the flue gas filtering main body device further comprises a plurality of spraying units, respectively defined as a first spraying unit, a second spraying unit, a third spraying unit and a fourth spraying unit, the first spraying unit is arranged on the first resin filter layer, the second spraying unit is arranged on the second resin filter layer, the third spraying unit is arranged on the third resin filter layer, and the fourth spraying unit is arranged on the fourth resin filter layer.

[0013] Each of the spraying units comprises a main pipe and a plurality of sub-pipes, the plurality of sub-pipes are connected with the main pipe, and a plurality of nozzles are arranged below each of the sub-pipes, the main pipe is communicated with the liquid inlet.

[0014] Optionally, the number of sub-pipes includes 9, and each of the sub-pipes is arranged in parallel and equidistantly, and the interval between adjacent two sub-pipes is 30 cm.

[0015] Optionally, the interval between adjacent two nozzles on the same sub-pipe is 15 cm, the nozzles include a first sub-nozzle and a second sub-nozzle, the first sub-nozzle and the second sub-nozzle are arranged on the sub-pipe, the first sub-nozzle and the second sub-nozzle are distributed at right angles on the surface of the sub-pipe, and the aperture of the first sub-nozzle and the aperture of the second sub-nozzle are both 0.5 cm-0.2 cm.

[0016] Optionally, the length direction of the sub-pipe is the same as the direction of the line connecting the gas inlet and the gas outlet, the direction in which the gas inlet extends to the gas outlet is defined as a first direction, and along the first direction, the aperture of the nozzles on the sub-pipe gradually decreases.

[0017] Optionally, the first resin filter layer, the second resin filter layer, the third resin filter layer and the fourth resin filter layer all comprise a first glass steel mesh plate, a first nylon mesh cloth, a black foam plate, a first polyethylene mesh cloth, a resin material layer, a second polyethylene mesh cloth, a second nylon mesh cloth, a PP porous plate and a second glass steel mesh plate arranged in sequence.

[0018] The first glass steel mesh plate of the first resin filter layer is located on the side of the second glass steel mesh plate close to the first flue gas channel, the first glass steel mesh plate of the second resin filter layer is located on the side of the second glass steel mesh plate close to the first flue gas channel, the first glass steel mesh plate of the third resin filter layer is located on the side of the second glass steel mesh plate close to the second flue gas channel, and the first glass steel mesh plate of the fourth resin filter layer is located on the side of the second glass steel mesh plate close to the second flue gas channel.

[0019] The application further discloses an ion exchange method desulfurization and denitrification equipment.

[0020] Compared with the scheme that the resin filter layers are arranged longitudinally and the flue gas passes through the resin filter layers from the gas inlet to the gas outlet, the resin filter layers are arranged transversely in the application, the flue gas entering from the gas inlet enters the first flue gas channel, and then passes through the first resin filter layer and the second resin filter layer and is discharged from the gas outlet, so that the filtering area is increased, and the volume of the flue gas filtering main body device does not need to be increased. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings included are intended to provide a further understanding of the embodiments of the application, and constitute a part of the specification, and are used to illustrate the embodiments of the application together with the text description, and to explain the principles of the application. Obviously, the accompanying drawings in the following description only show some embodiments of the application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings. In the drawings:

[0022] Figure 1 Fig. 1 is a schematic diagram of an ion exchange method desulfurization and denitrification equipment according to an embodiment of the application;

[0023] Figure 2 Fig. 2 is a schematic diagram of a first flue gas filtering main body device according to an embodiment of the application;

[0024] Figure 3 Fig. 3 is a schematic diagram of a second flue gas filtering main body device according to an embodiment of the application;

[0025] Figure 4 Fig. 4 is a schematic diagram of a spraying unit according to an embodiment of the application;

[0026] Figure 5 Fig. 5 is a top view schematic diagram of the spraying unit according to an embodiment of the application;

[0027] Figure 6 Fig. 6 is a sectional schematic diagram of a sub-pipe according to an embodiment of the application;

[0028] Figure 7 Fig. 7 is a schematic diagram of a resin filter layer according to an embodiment of the application.

[0029] 10, ion exchange method desulfurization and denitrification equipment; 20, control device; 30, regeneration device; 40, flue gas filtering main device; 110, box structure; 120, liquid inlet; 130, liquid outlet; 131, first liquid outlet; 132, second liquid outlet; 133, transparent pipeline; 134, valve; 140, gas inlet; 150, gas outlet; 210, first resin filter layer; 220, second resin filter layer; 230, third resin filter layer; 240, fourth resin filter layer; 251, first flue gas channel; 252, second flue gas channel; 261, first barrier wall; 262, second barrier wall; 263, third barrier wall; 264, fourth barrier wall; 265, fifth barrier wall; 300, spraying unit; 310, first spraying unit; 320, second spraying unit; 330, third spraying unit; 340, fourth spraying unit; 351, main pipeline; 352, auxiliary pipeline; 360, nozzle; 361, first sub-nozzle; 362, second sub-nozzle; 410, first glass steel grid plate; 420, first nylon mesh cloth; 430, black foam plate; 440, first polyethylene mesh cloth; 450, resin material layer; 460, second polyethylene mesh cloth; 470, second nylon mesh cloth; 480, PP porous plate; 490, second glass steel grid plate. DETAILED DESCRIPTION

[0030] It is to be understood that the terminology used herein is for the purpose of describing specific embodiments only and is not intended to be limiting, but is intended to be representative of many alternatives. Numerous specific details are set forth herein in order to provide a thorough understanding of the embodiments. However, various embodiments can be practiced without these specific details.

[0031] In the description of the present application, the terms "first", "second", "third", etc. are used only for the purpose of description, and should not be understood as indicating relative importance or implying the number of the technical features indicated. Therefore, unless otherwise specified, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features; the meaning of "multiple" is two or more. The term "comprise" and any variation thereof means non-exclusive inclusion, and one or more other features, integers, steps, operations, units, components and / or combinations thereof can exist or be added.

[0032] In addition, the terms indicating the orientation or positional relationship of "center", "transverse", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are described based on the orientation or relative position relationship shown in the drawings, and are only for the convenience of the simplified description of the present application, and should not be understood as indicating that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present application.

[0033] In addition, unless specifically stated and limited otherwise, the terms "mounting", "connected", "connecting" should be interpreted broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0034] The application will be described in detail below with reference to the accompanying drawings and optional embodiments.

[0035] Figure 1 is a schematic diagram of an ion exchange desulfurization and denitrification equipment according to an embodiment of the present application, as Figure 1 shown, the present application discloses an ion exchange desulfurization and denitrification equipment 10, the ion exchange desulfurization and denitrification equipment 10 comprises a flue gas filtering main device 40.

[0036] The ion exchange desulfurization and denitrification equipment 10 further comprises a control device 20 and a regeneration device 30, the control device 20, the regeneration device 30 and the flue gas filtering main device 40 are connected, the control device 20 is used for controlling the regeneration device 30 and the flue gas filtering main device 40 to work, and the regeneration device 30 is used for controlling the regeneration of the resin filter layer in the flue gas filtering main device 40.

[0037] The present application mainly improves the flue gas filtering main device 40 in the ion exchange desulfurization and denitrification equipment 10, and the improved flue gas filtering main device 40 is used in the ion exchange desulfurization and denitrification equipment 10, and the specific improvement of the flue gas filtering main device 40 is as follows:

[0038] Figure 2 is a schematic diagram of a first flue gas filtering main device according to an embodiment of the present application, as Figure 2 shown, the direction indicated by the arrow in the figure represents the flow direction of part of the flue gas, and the present application further discloses a flue gas filtering main device 40, which is used for filtering flue gas, and comprises a box structure 110, a liquid inlet 120, a liquid outlet 130, an air inlet 140, an air outlet 150 and a resin filter layer, the resin filter layer comprising a first resin filter layer 210 and a second resin filter layer 220; the air inlet 140 and the air outlet 150 are respectively arranged on the left and right sides of the box structure 110, the liquid inlet 120 and the liquid outlet 130 are respectively arranged on the left and right sides of the box structure 110, and the liquid inlet 120 is located in the upper half of the box structure 110, and the liquid outlet 130 is located in the lower half of the box structure 110.

[0039] The first resin filter layer 210 is connected to the upper top wall of the housing structure 110 at one end away from the air outlet 150, and the second resin filter layer 220 is connected to the lower bottom wall of the housing structure 110 at one end away from the air outlet 150. The other end of the first resin filter layer 210 is connected to the other end of the second resin filter layer 220, and the first resin filter layer 210 and the second resin filter layer 220 are arranged in parallel, forming a first flue gas channel 251 between the first resin filter layer 210 and the second resin filter layer 220. The flue gas entering the housing structure 110 from the air inlet 140 will pass through the first flue gas channel 251, the first resin filter layer 210 and the second resin filter layer 220, and then exit from the air outlet 150.

[0040] For example, when filtering flue gas, the induced draft fan is first turned on. The flue gas, cooled by the flue gas heat exchanger, enters the main flue gas filtration device 40 through the inlet 140. After being processed by the first resin filter layer 210 and the second resin filter layer 220, it is discharged from the outlet 150. When the emission concentration of the flue gas does not meet the standard, the regeneration device 30 can transmit the leaching liquid to the spray unit 300 inside the main flue gas filtration device 40 through the liquid inlet 120 without shutting down the main flue gas filtration device 40. The leaching liquid is sprayed onto the resin filter layer and then discharged from the liquid outlet 130.

[0041] In simple terms, the first resin filter layer 210 and the second resin filter layer 220 are arranged horizontally, and a first flue gas channel 251 is formed between the first resin filter layer 210 and the second resin filter layer 220. The opening of the first flue gas channel 251 faces the air inlet 140. In this way, the flue gas entering from the air inlet 140 will enter the first flue gas channel 251, and then be filtered by the first resin filter layer 210 and the second resin filter layer 220 on the upper and lower sides of the first flue gas channel 251, and then discharged from the air outlet 150.

[0042] Compared to the current scheme where the resin filter layers are arranged vertically and the flue gas passes through multiple resin filter layers from the inlet 140 to the outlet 150, this application arranges the first resin filter layer 210 and the second resin filter layer 220 horizontally. The flue gas entering from the inlet 140 enters the first flue gas channel 251, then passes through the first resin filter layer 210 and the second resin filter layer 220, and is discharged from the outlet 150. This increases the filtration area without increasing the volume of the main flue gas filtration device 40.

[0043] Furthermore, since the flue gas only needs to pass through the first resin filter layer 210 and the second resin filter layer 220 from the inlet 140 to the outlet 150, the flow rate of the flue gas will not be reduced, the resistance encountered by the flue gas is smaller, and the filtration speed will not be reduced.

[0044] Figure 3 This is a schematic diagram of a second type of flue gas filtration main device according to an embodiment of this application, as shown below. Figure 3 As shown, to further increase the filtration area, this application also adds a third resin filter layer 230 and a fourth resin filter layer 240. That is, the resin filter layer further includes a third resin filter layer 230 and a fourth resin filter layer 240. The third resin filter layer 230 is located between the fourth resin filter layer 240 and the second resin filter layer 220, and the first resin filter layer 210, the second resin filter layer 220, the third resin filter layer 230 and the fourth resin filter layer 240 are all arranged in parallel and at intervals. The end of the second resin filter layer 220 facing away from the air outlet 150 is connected to the bottom wall of the box structure 110 through the third resin filter layer 230 and the fourth resin filter layer 240.

[0045] The end of the third resin filter layer 230 facing away from the air outlet 150 is connected to the end of the second resin filter layer 220 facing away from the air outlet 150. The end of the fourth resin filter layer 240 facing away from the air outlet 150 is connected to the bottom wall of the box structure 110. The other end of the third resin filter layer 230 is connected to the other end of the fourth resin filter layer 240.

[0046] A second flue gas passage 252 is formed between the third resin filter layer 230 and the fourth resin filter layer 240; the flue gas entering the housing structure 110 from the air inlet 140 will also pass through the second flue gas passage 252 through the third resin filter layer 230 and the fourth resin filter layer 240, and then exit from the air outlet 150.

[0047] This adds a second flue gas passage 252, allowing the flue gas entering from the inlet 140 to simultaneously pass through the first resin filter layer 210 and the second resin filter layer 220 from the first flue gas passage 251, and through the third resin filter layer 230 and the fourth resin filter layer 240 from the second flue gas passage 252, thereby further increasing the filtration area and improving the filtration efficiency of the main flue gas filtration device 40.

[0048] The smoke filtering main body device 40 further comprises a first barrier wall 261, a second barrier wall 262, a third barrier wall 263, a fourth barrier wall 264 and a fifth barrier wall 265; two ends of the first barrier wall 261 are connected with the upper top wall of the box structure 110 and one end of the first resin filter layer 210 close to the air inlet 140 respectively; two ends of the second barrier wall 262 are connected with one end of the first resin filter layer 210 close to the air outlet 150 and one end of the second resin filter layer 220 close to the air outlet 150 respectively; two ends of the third barrier wall 263 are connected with one end of the second resin filter layer 220 close to the air inlet 140 and one end of the third resin filter layer 230 close to the air inlet 140 respectively; two ends of the fourth barrier wall 264 are connected with one end of the third resin filter layer 230 close to the air outlet 150 and one end of the fourth resin filter layer 240 close to the air outlet 150 respectively; two ends of the fifth barrier wall 265 are connected with one end of the fourth resin filter layer 240 close to the air inlet 140 and the upper top wall of the box structure 110 respectively.

[0049] Wherein, the first barrier wall 261, the second barrier wall 262, the third barrier wall 263, the fourth barrier wall 264 and the fifth barrier wall 265 are all arranged in parallel, and the first barrier wall 261, the second barrier wall 262, the third barrier wall 263, the fourth barrier wall 264 and the fifth barrier wall 265 are all arranged vertically with the first resin filter layer 210, the second resin filter layer 220, the third resin filter layer 230 and the fourth resin filter layer 240, and the air inlet 140 is opposite to the third barrier wall 263.

[0050] Thus, it is ensured that the smoke is more uniform in the smoke filtering main body device 40, avoiding the problem of imbalance that there is more smoke in the first smoke passage 251 and less smoke in the second smoke passage 252, or there is more smoke in the second smoke passage 252 and less smoke in the first smoke passage 251, avoiding the imbalance of the service life of the first resin filter layer 210, the second resin filter layer 220, the third resin filter layer 230 and the fourth resin filter layer 240, and improving the filtering effect of the smoke.

[0051] The width of the first resin filter layer 210, the second resin filter layer 220, the third resin filter layer 230 and the fourth resin filter layer 240 is 500 cm, and the distance between the left and right ends of the first resin filter layer 210, the second resin filter layer 220, the third resin filter layer 230 and the fourth resin filter layer 240 and the air inlet 140 and the air outlet 150 is 80 cm. The thickness of the first resin filter layer 210, the second resin filter layer 220, the third resin filter layer 230 and the fourth resin filter layer 240 is 28-30 cm.

[0052] In this way, the first resin filter layer 210, the second resin filter layer 220, the third resin filter layer 230 and the fourth resin filter layer 240 have a large enough area, and there is a certain space volume between the first resin filter layer 210, the second resin filter layer 220, the third resin filter layer 230 and the fourth resin filter layer 240 and the air inlet 140, and there is a certain space volume between the first resin filter layer 210, the second resin filter layer 220, the third resin filter layer 230 and the fourth resin filter layer 240 and the air outlet 150, so that the flow of incoming flue gas is not chaotic, and the flue gas flow rate in the flue gas filtering main device is controlled at 10-12 m / s.

[0053] The liquid outlet 130 further comprises a first liquid outlet 131, a second liquid outlet 132, a transparent pipeline 133 and a valve 134. The first liquid outlet 131 is located above the second liquid outlet 132, and the first liquid outlet 131 and the second liquid outlet 132 are connected through the transparent pipeline 133. The side of the second liquid outlet 132 away from the transparent pipeline 133 is provided with a valve 134. In this way, the liquid level in the flue gas filtering main device 40 can be observed through the transparent pipeline 133 to obtain the liquid amount, and then the valve 134 is controlled to discharge the liquid.

[0054] Figure 4 is a schematic view of a spraying unit according to an embodiment of the present application, Figure 5 is a top view of a spraying unit according to an embodiment of the present application, Figure 6 is a sectional view of a sub-pipeline according to an embodiment of the present application, such as Figures 4-6As shown, the flue gas filtering main body device 40 further comprises a plurality of spraying units 300, respectively defined as a first spraying unit 310, a second spraying unit 320, a third spraying unit 330 and a fourth spraying unit 340, the first spraying unit 310 is arranged on the first resin filter layer 210, the second spraying unit 320 is arranged on the second resin filter layer 220, the third spraying unit 330 is arranged on the third resin filter layer 230, and the fourth spraying unit 340 is arranged on the fourth resin filter layer 240.

[0055] Each of the spraying units 300 comprises a main pipe 351 and a plurality of sub-pipes 352, the plurality of sub-pipes 352 are connected with the main pipe 351, and a plurality of nozzles 360 are arranged below each of the sub-pipes 352, and the main pipe 351 is communicated with the liquid inlet 120.

[0056] The spraying unit 300 is used to communicate with the regeneration device 30, and the spraying unit 300 sprays the liquid in the regeneration device 30 on the surfaces of the first resin filter layer 210, the second resin filter layer 220, the third resin filter layer 230 and the fourth resin filter layer 240, so as to regenerate the first resin filter layer 210, the second resin filter layer 220, the third resin filter layer 230 and the fourth resin filter layer 240. By additionally arranging the spraying unit 300 in the flue gas filtering main body device 40, the resin filter layer can be regenerated without stopping the machine.

[0057] The plurality of nozzles 360 on the sub-pipe 352 are arranged towards the resin filter layer below, and the plurality of nozzles 360 on the plurality of sub-pipes 352 are arranged to uniformly spray the liquid on the resin filter layer, so as to achieve more uniform spraying.

[0058] Since the area of the resin filter layer is large, the number of the sub-pipes 352 is 9, and each of the sub-pipes 352 is arranged in parallel and equidistantly, and the interval between the adjacent two sub-pipes 352 is 30 cm.

[0059] The interval between the adjacent two nozzles 360 on the same sub-pipe 352 is 15 cm, the nozzle 360 comprises a first sub-nozzle 361 and a second sub-nozzle 362, the first sub-nozzle 361 and the second sub-nozzle 362 are arranged on the sub-pipe 352, the first sub-nozzle 361 and the second sub-nozzle 362 are arranged at right angles on the surface of the sub-pipe 352, and the aperture of the first sub-nozzle 361 and the aperture of the second sub-nozzle 362 are both 0.5 cm-0.2 cm.

[0060] Preferably, the aperture of the first sub-nozzle 361 and the aperture of the second sub-nozzle 362 are 0.35 cm, that is, it is possible that the aperture of the first sub-nozzle 361 and the aperture of the second sub-nozzle 362 are equal at each place on the sub-pipe 352. Thus, it is ensured that the resin filter layer at each place can be sprayed by the spray from the first sub-nozzle 361 and the second sub-nozzle 362.

[0061] The length direction of the sub-pipe 352 is the same as the direction of the line connecting the air inlet 140 and the air outlet 150, and the direction in which the air inlet 140 extends to the air outlet 150 is defined as the first direction. Taking the first resin filter layer 210 as an example, since the left side is closer to the air inlet 140 and the right side is closer to the air outlet 150, it will cause the remaining filterable capacity to gradually increase along the first resin filter layer 210 in the first direction as the use time elapses. In simple terms, the consumption of the left side of the first resin filter layer 210 is greater than that of the right side, which causes the problem of uneven filtering capacity of the first resin filter layer 210 to occur. Therefore, the aperture of the nozzle 360 on the sub-pipe 352 gradually decreases along the first direction.

[0062] In this way, it can be ensured that more spray can be sprayed to the left side during the regeneration of the resin filter layer, which can reduce the waste of the spray and ensure that the filtering capacity of the resin filter layer on the left and right sides after regeneration is more uniform.

[0063] Figure 7 is a schematic view of a resin filter layer of an embodiment of the present application, as Figure 7 shown, the first resin filter layer 210, the second resin filter layer 220, the third resin filter layer 230, and the fourth resin filter layer 240 each include a first glass steel mesh plate 410, a first nylon mesh cloth 420, a black foam plate 430, a first polyethylene mesh cloth 440, a resin material layer 450, a second polyethylene mesh cloth 460, a second nylon mesh cloth 470, a PP porous plate 480, and a second glass steel mesh plate 490 arranged in sequence; the PP porous plate 480 is a polypropylene porous plate.

[0064] The first glass steel mesh plate 410 of the first resin filter layer 210 is located on the side of the second glass steel mesh plate 490 close to the first flue gas passage 251, the first glass steel mesh plate 410 of the second resin filter layer 220 is located on the side of the second glass steel mesh plate 490 close to the first flue gas passage 251; the first glass steel mesh plate 410 of the third resin filter layer 230 is located on the side of the second glass steel mesh plate 490 close to the second flue gas passage 252, and the first glass steel mesh plate 410 of the fourth resin filter layer 240 is located on the side of the second glass steel mesh plate 490 close to the second flue gas passage 252.

[0065] The first polyethylene mesh 440 and the second polyethylene mesh 460 are 40 mesh, and the first nylon mesh 420 and the second nylon mesh 470 are 40 mesh, which ensures that the flue gas can pass through the first resin filter layer 210, the second resin filter layer 220, the third resin filter layer 230 and the fourth resin filter layer 240 smoothly, avoids the loss of the resin material layer 450 in the resin filter layer, and avoids the deformation of the resin filter layer, thereby improving the reliability of the resin filter layer

[0066] It should be noted that the inventive concept of the present application can form a very large number of embodiments, but the length of the application file is limited and cannot list them one by one, so the above-described embodiments or technical features can be combined to form new embodiments without conflict. The combination of each embodiment or technical feature will enhance the original technical effect.

[0067] The above is a further detailed description of the present application in combination with specific optional embodiments, and the specific implementation of the present application cannot be limited to these descriptions. For ordinary skilled persons in the art to which the present application belongs, without departing from the concept of the present application, a number of simple deductions or substitutions can be made, which should be considered as falling within the scope of protection of the present application.

Claims

1. A smoke filtering body device, characterized by, The smoke filtering main device is used for filtering smoke, and comprises a box structure, a liquid inlet, a liquid outlet, a gas inlet, a gas outlet and a resin filter layer, wherein the resin filter layer comprises a first resin filter layer and a second resin filter layer; the gas inlet and the gas outlet are respectively arranged on the left and right sides of the box structure, and the liquid inlet and the liquid outlet are respectively arranged on the left and right sides of the box structure, and the liquid inlet is located on the upper half of the box structure, and the liquid outlet is located on the lower half of the box structure; One end of the first resin filter layer, which is away from the gas outlet, is connected with the upper top wall of the box structure, one end of the second resin filter layer, which is away from the gas outlet, is connected with the lower bottom wall of the box structure, the other end of the first resin filter layer is connected with the other end of the second resin filter layer, and the first resin filter layer and the second resin filter layer are arranged in parallel to form a first smoke passage between the first resin filter layer and the second resin filter layer; The smoke entering the box structure from the gas inlet can pass through the first resin filter layer and the second resin filter layer from the first smoke passage and then go out from the gas outlet.

2. The smoke filtration body device according to claim 1, characterized in that, The resin filter layer further comprises a third resin filter layer and a fourth resin filter layer, the third resin filter layer is located between the fourth resin filter layer and the second resin filter layer, and the first resin filter layer, the second resin filter layer, the third resin filter layer and the fourth resin filter layer are arranged in parallel and at intervals; one end of the second resin filter layer, which is away from the gas outlet, is connected with the lower bottom wall of the box structure through the third resin filter layer and the fourth resin filter layer; One end of the third resin filter layer, which is away from the gas outlet, is connected with one end of the second resin filter layer, which is away from the gas outlet, one end of the fourth resin filter layer, which is away from the gas outlet, is connected with the lower bottom wall of the box structure, and the other end of the third resin filter layer is connected with the other end of the fourth resin filter layer; The third resin filter layer and the fourth resin filter layer form a second smoke passage; The smoke entering the box structure from the gas inlet can also pass through the third resin filter layer and the fourth resin filter layer from the second smoke passage and then go out from the gas outlet.

3. The smoke filtration body device according to claim 2, characterized in that, The smoke filtering main body device further comprises a first barrier wall, a second barrier wall, a third barrier wall, a fourth barrier wall and a fifth barrier wall; two ends of the first barrier wall are connected with the upper top wall of the box structure and one end of the first resin filter layer close to the air inlet respectively; two ends of the second barrier wall are connected with one end of the first resin filter layer close to the air outlet and one end of the second resin filter layer close to the air outlet respectively; two ends of the third barrier wall are connected with one end of the second resin filter layer close to the air inlet and one end of the third resin filter layer close to the air inlet respectively; two ends of the fourth barrier wall are connected with one end of the third resin filter layer close to the air outlet and one end of the fourth resin filter layer close to the air outlet respectively; two ends of the fifth barrier wall are connected with one end of the fourth resin filter layer close to the air inlet and the upper top wall of the box structure respectively.

4. The smoke filtration body device of claim 2, wherein, The width of the first resin filter layer, the second resin filter layer, the third resin filter layer and the fourth resin filter layer is 500 cm, and the distance between the left and right ends of the first resin filter layer, the second resin filter layer, the third resin filter layer and the fourth resin filter layer and the air inlet and the air outlet is 80 cm, and the thickness of the first resin filter layer, the second resin filter layer, the third resin filter layer and the fourth resin filter layer is 28-30 cm.

5. The smoke filtration body device of claim 2, wherein, The smoke filtering main body device further comprises a plurality of spraying units, which are defined as a first spraying unit, a second spraying unit, a third spraying unit and a fourth spraying unit respectively, the first spraying unit is arranged on the first resin filter layer, the second spraying unit is arranged on the second resin filter layer, the third spraying unit is arranged on the third resin filter layer, and the fourth spraying unit is arranged on the fourth resin filter layer. Each spraying unit comprises a main pipeline and a plurality of auxiliary pipelines, the plurality of auxiliary pipelines are connected with the main pipeline, and a plurality of nozzles are arranged below each auxiliary pipeline, and the main pipeline is communicated with the liquid inlet.

6. The smoke filtration body device of claim 5, wherein, The number of auxiliary pipelines is 9, and each auxiliary pipeline is arranged in parallel and equidistantly, and the interval between adjacent two auxiliary pipelines is 30 cm.

7. The smoke filtration body device according to claim 6, characterized in that, The interval between two adjacent nozzles on the same auxiliary pipeline is 15 cm, the nozzles comprise a first sub-nozzle and a second sub-nozzle, the first sub-nozzle and the second sub-nozzle are arranged on the auxiliary pipeline, the first sub-nozzle and the second sub-nozzle are distributed at right angles on the surface of the auxiliary pipeline, and the aperture of the first sub-nozzle and the aperture of the second sub-nozzle are both 0.5 cm-0.2 cm.

8. The smoke filtration body device of claim 5, wherein, The length direction of the auxiliary pipeline is the same as the direction of the connection line of the air inlet and the air outlet, the direction of the air inlet extending to the air outlet is defined as a first direction, and the aperture of the nozzle on the auxiliary pipeline gradually decreases along the first direction.

9. The smoke filtration body device of claim 5, wherein, The first resin filter layer, the second resin filter layer, the third resin filter layer and the fourth resin filter layer each comprise a first glass steel grid plate, a first nylon mesh cloth, a black foam plate, a first polyethylene mesh cloth, a resin material layer, a second polyethylene mesh cloth, a second nylon mesh cloth, a PP porous plate and a second glass steel grid plate arranged in sequence; The first glass steel grid plate of the first resin filter layer is located on the side of the second glass steel grid plate close to the first flue gas passage, the first glass steel grid plate of the second resin filter layer is located on the side of the second glass steel grid plate close to the first flue gas passage; the first glass steel grid plate of the third resin filter layer is located on the side of the second glass steel grid plate close to the second flue gas passage, and the first glass steel grid plate of the fourth resin filter layer is located on the side of the second glass steel grid plate close to the second flue gas passage.

10. An ion exchange method desulfurization and denitrification apparatus, characterized by, The ion exchange method desulfurization and denitrification equipment comprises the flue gas filter main body device according to any one of claims 1-9.

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