Multi-stage flue gas whitening device

Abstract

The present invention relates to the technical field of flue gas purification equipment, and in particular to a multi-stage flue gas elimination device, comprising: an assembly shell, a water tank and an air guide module; the assembly shell is fixedly arranged on an external chimney, the smoke exhaust port of the chimney is located at the bottom of the inner cavity of the assembly shell, and the top of the assembly shell adopts an open design; the water tank is arranged in the inner cavity of the assembly shell, the water tank is located at the top of the chimney, the top of the water tank adopts an open design, and a water solution is pre-stored in the inner cavity of the water tank; the air guide module is arranged on the water tank, the air guide module is connected to the inner wall of the assembly shell, the air guide module connects the smoke exhaust port and the inner cavity of the water tank, and is used to introduce the smoke discharged through the smoke exhaust port into the inner cavity of the water tank. The present invention solves the defect that the existing technology cannot effectively eliminate the particulate impurities floating in the smoke, and has the characteristics of good smoke purification effect.

Description

Technical Field

[0001] The present invention relates to the technical field of flue gas purification equipment, and in particular to a multi-stage flue gas whitening device. Background Art

[0002] A large amount of flue gas is often generated during the process of hazardous waste treatment and garbage incineration. After it is discharged into the environment, due to the high temperature of the flue gas and the large amount of water vapor it contains, the water vapor in the flue gas will condense to form a wet plume. Since the water vapor in the flue gas contains more soluble salts, various sulfides, gel dust, fine dust and other impurities, direct discharge will cause pollution to the surrounding environment. Therefore, the flue gas needs to be dewhitened before it is discharged.

[0003] In the prior art, a Chinese invention patent with application publication number CN118512869A discloses a flue gas decolorization device and a flue gas decolorization method with multi-stage condensation phase change, wherein the device comprises: a main body; a multi-stage condensation phase change system comprising a pretreatment module and a condensation heat exchange module; the external cold air entering the pretreatment module performs a first-stage cooling on the hot gas, and the cold air entering the pretreatment module does not contact the hot gas; the secondary cold air entering the condensation heat exchange module and the external cold air perform a second-stage cooling on the hot gas, and neither of them contacts the hot gas; the secondary cold air and the discharged cold air discharged from the condensation heat exchange module are mixed with the discharged hot gas above the condensation heat exchange module, and the hot gas is cooled in the third stage, and the water cut system intercepts the moisture contained in the mixed gas; the exhaust module draws the mixed gas to the gas output port for discharge.

[0004] The device uses three-stage heat exchange to treat the flue gas, gradually reducing the flue gas temperature and removing water vapor in the flue gas. It has the advantages of good whitening effect, economy and environmental protection. However, although the device can effectively remove water vapor in the flue gas, it cannot effectively eliminate the particulate matter floating in the flue gas, and has the defect of poor purification effect. Summary of the Invention

[0005] In order to solve the technical problem of poor purification effect in the prior art, the embodiment of the present invention provides a multi-stage flue gas whitening device, comprising: an assembly shell, a water tank and an air guide module;

[0006] The assembly shell is fixedly mounted on an external chimney, the smoke exhaust port of the chimney is located at the bottom of the inner cavity of the assembly shell, and the top of the assembly shell adopts an open design;

[0007] The water tank is arranged in the inner cavity of the assembly shell. The water tank is located at the top of the chimney. The top of the water tank adopts an open design. The inner cavity of the water tank is pre-stored with aqueous solution.

[0008] The air guide module is arranged on the water tank, connected to the inner wall of the assembly shell, and connected to the smoke exhaust port and the inner cavity of the water tank, and is used to introduce the smoke exhausted through the smoke exhaust port into the inner cavity of the water tank.

[0009] Furthermore, the air guide module includes: a partition, an assembly hole, a plurality of air guide holes and a plurality of air guide channels;

[0010] The partition is arranged in the inner cavity of the assembly shell along the radial direction of the assembly shell, the circumferential edge of the partition is fixedly connected to the circumferential inner wall of the assembly shell, the partition is located between the chimney and the top port of the assembly shell, and the partition divides the inner cavity of the assembly shell into an air guide cavity and an exhaust cavity, and the air guide cavity is connected to the smoke exhaust port;

[0011] The assembly hole is formed on the partition, and the partition is fixedly sleeved on the circumferential side wall of the water tank through the assembly hole, and the top port of the water tank is communicated with the exhaust cavity;

[0012] A plurality of air guide holes are provided on the bottom wall of the inner cavity of the water tank, and the output end of any air guide hole is communicated with the bottom of the inner cavity of the water tank;

[0013] A plurality of air guide channels are embedded in the inner wall of the water tank, the input end of the air guide channel is communicated with the inner cavity top of the air guide cavity, and the output end of the air guide channel is communicated with the input end of the air guide hole.

[0014] Furthermore, the air guide module further comprises: a floating plate, a plurality of air distribution holes and a plurality of dredging components;

[0015] The floating plate is movably arranged in the inner cavity of the water tank, and the floating plate matches the radial cross-sectional shape of the water tank;

[0016] A plurality of air distribution holes are provided on the floating plate;

[0017] A plurality of dredging components are arranged on the floating plate, and the plurality of dredging components are respectively connected with a plurality of air guide holes.

[0018] Furthermore, the dredging assembly includes: an insertion rod, a limiting protrusion and a plurality of scrapers;

[0019] The plug rod is fixedly arranged at the bottom of the floating plate, and the plug rod is movably connected with the air guide hole;

[0020] The limiting protrusion is fixedly arranged at the bottom end of the insertion rod and is used to limit the insertion rod;

[0021] A plurality of scrapers are fixedly arranged on the circumferential side wall of the insertion rod and are used for scraping off impurities attached to the circumferential inner wall of the air guide hole.

[0022] Furthermore, it also includes: a flow guide member, which is fixedly arranged on the circumferential inner wall of the assembly shell, the flow guide member is funnel-shaped, the top port of the flow guide member matches the radial cross-sectional shape of the inner cavity of the assembly shell, and the bottom port of the flow guide member matches the position of the top port of the water tank.

[0023] Further, it also includes: a pair of water vapor capture modules and induced draft fans;

[0024] The water vapor capture module is arranged on the assembly housing and is used to capture water vapor in the flue gas;

[0025] The induced draft fan is arranged in the top port of the assembly shell.

[0026] Furthermore, the water vapor capture module comprises: a pair of assembly windows, a plurality of water vapor capture ropes, a pair of reeling assemblies and a pair of guide assemblies;

[0027] A pair of assembly windows are provided on the side wall of the assembly shell, and any one of the assembly windows passes through the outer wall of the assembly shell and communicates with the inner cavity of the assembly shell, and the pair of assembly windows are arranged opposite to each other;

[0028] A pair of winding assemblies are respectively arranged on the side walls on both sides of the assembly shell;

[0029] The middle sections of several water vapor capture ropes are inserted into the inner cavity of the assembly shell through a pair of assembly windows. The water vapor capture ropes of a pair of water vapor capture modules are interlaced with each other, and the two ends of any water vapor capture rope are respectively connected to a pair of winding components.

[0030] A pair of guide assemblies are respectively arranged in a pair of assembly windows, and the pair of guide assemblies are connected with a plurality of water vapor capture ropes for guiding the water vapor capture ropes.

[0031] Furthermore, the guide assembly includes: a plurality of limit members and a plurality of rotating shafts;

[0032] A plurality of limiting members are arranged in one of the assembly windows, and the two ends of any limiting member are fixedly connected to the top wall of the inner cavity of the assembly window and the bottom wall of the inner cavity of the assembly window respectively. The plurality of limiting members are arranged in parallel along the length direction of the assembly window, and the plurality of water vapor capture ropes pass through the gaps between the plurality of limiting members;

[0033] Several rotating shafts are arranged in one of the assembly windows, and the two ends of any rotating shaft are respectively rotatably connected to the side walls on both sides of the assembly window. The several rotating shafts are arranged in parallel along the width direction of the assembly window, and several water vapor capture ropes pass through the gaps between the several rotating shafts.

[0034] Furthermore, the winding assembly comprises: a carrying shell, a reel, a drive motor and a refrigeration device;

[0035] The bearing shell is fixedly arranged on a side wall of one side of the assembly shell;

[0036] The reel is arranged in the inner cavity of the carrying shell, and both ends of the reel are rotatably connected to the inner wall of the carrying shell respectively, and one end of any water vapor capture rope is wound around the reel;

[0037] The driving motor is fixedly mounted on the bearing housing, and the driving end of the driving motor is connected to the reel for driving the reel to rotate;

[0038] The refrigeration device is fixedly arranged on the carrying shell, and the position of the refrigeration device matches that of the reel.

[0039] Furthermore, the water vapor capturing rope is formed by interweaving a plurality of metal wires and a plurality of water absorbing bundles.

[0040] The multi-stage flue gas elimination device according to the embodiment of the present invention has the following beneficial effects:

[0041] 1. This device sets a water tank pre-stored with aqueous solution and an air guide module in the inner cavity of the assembly shell, guides the flue gas discharged from the chimney into the aqueous solution stored in the water tank, and uses the aqueous solution to capture particulate impurities floating in the flue gas, thereby improving the flue gas purification effect of the device and solving the problem of poor flue gas purification effect in the prior art.

[0042] 2. This device movably sets a floating plate with multiple rods at the bottom inside the water tank, and sets multiple scrapers on the circumferential side wall of each rod. When the smoke rises from the bottom of the inner cavity of the water tank to the surface, the floating plate utilizes the kinetic energy generated in this process to drive the rods to move up and down in the air guide holes, thereby driving the scrapers to scrape the inner wall of the air guide holes. The rods and scrapers are used to dredge the air guide holes to prevent the air guide holes from being blocked by particles floating in the smoke.

[0043] 3. The water vapor capture rope of the device is woven by metal wire and water absorption bundle, which not only ensures the tensile strength of the water vapor capture rope but also takes advantage of the good water absorption of the water absorption bundle to absorb the water droplets condensed on the water vapor capture rope in time, so as to bring the water-saturated water absorption bundle into the bearing shell and cool it by using the refrigeration device, thereby improving the water vapor capture effect of the water vapor capture rope and further improving the flue gas purification effect of the device.

[0044] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the technology as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is an assembly diagram according to an embodiment of the present invention;

[0046] Figure 2 for Figure 1 A partial enlarged schematic diagram of area A in the middle;

[0047] Figure 3 for Figure 1 A partial enlarged schematic diagram of area B in the middle;

[0048] Figure 4 is an overall cross-sectional view according to an embodiment of the present invention;

[0049] Figure 5 for Figure 4 A partial enlarged schematic diagram of the middle C area;

[0050] Figure 6 for Figure 4 A partial enlarged schematic diagram of the middle D area;

[0051] Figure 7 is a schematic diagram of the internal structure of an assembly housing according to an embodiment of the present invention;

[0052] Figure 8 This is a schematic diagram of the assembly of a dredging component according to an embodiment of the present invention;

[0053] Figure 9 Schematic diagram of the partial structure of a water vapor capture rope according to an embodiment of the present invention.

[0054] Description of the accompanying drawings:

[0055] 1-chimney, 11-smoke exhaust port, 2-assembly shell, 21-air guide cavity, 22-exhaust cavity, 3-water tank, 31-water pipe, 32-electrically controlled valve, 41-partition, 42-assembly hole, 43-air guide hole, 44-air guide channel, 45-floating plate, 46-air distribution hole, 47-dredging component, 471-insertion rod, 472-limiting protrusion, 473-scraper, 5-flow guide, 61-assembly window, 62-water vapor capture rope, 621-metal wire, 622-water absorption harness, 63-winding component, 631-load-bearing shell, 632-reel, 633-drive motor, 634-refrigeration device, 64-guide component, 641-limiting part, 642-rotating shaft, 7-induced draft fan. DETAILED DESCRIPTION

[0056] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to further illustrate the present invention.

[0057] The foregoing and other technical aspects, features, and benefits of the present invention will be more clearly understood in the following detailed description of the embodiments, which is accompanied by reference to the accompanying drawings. Directional terms such as up, down, left, right, front, and back, used in the following embodiments, are merely references to the accompanying drawings. Therefore, the directional terms used are for illustrative purposes only and are not intended to limit the present invention. Furthermore, identical reference numerals throughout the embodiments denote identical elements.

[0058] First, combine Figures 1 to 9 A multi-stage flue gas whitening device according to an embodiment of the present invention is described, which is used for flue gas whitening and has a wide range of application scenarios.

[0059] like Figure 1 、 4 As shown, the multi-stage flue gas elimination device according to an embodiment of the present invention includes: an assembly shell 2, a water tank 3 and an air guide module.

[0060] Specifically, if Figure 1 、 4 As shown, the assembly shell 2 is fixedly arranged on the external chimney 1, the smoke exhaust port 11 of the chimney 1 is located at the bottom of the inner cavity of the assembly shell 2, and the top of the assembly shell 2 adopts an open design; the water tank 3 is arranged in the inner cavity of the assembly shell 2, the water tank 3 is located at the top of the chimney 1, and the top of the water tank 3 adopts an open design. The inner cavity of the water tank 3 is pre-stored with an aqueous solution. Preferably, in this embodiment, a water pipe 31 and an electric control valve 32 are provided on the water tank 3, and the output end of the water pipe 31 is connected to the inner cavity of the water tank 3, and the output end of the water pipe 31 is connected to an external water supply device for injecting water into the water tank 3; the electric control valve 32 is arranged on the water pipe 31 for controlling the on and off of the water pipe 31; the air guide module is arranged on the water tank 3, and the air guide module is connected to the inner wall of the assembly shell 2, and the air guide module connects the smoke exhaust port 11 and the inner cavity of the water tank 3, for introducing the smoke discharged through the smoke exhaust port 11 into the inner cavity of the water tank 3.

[0061] Further, if Figure 1 、 4, 7, the air guide module includes: a partition 41, an assembly hole 42, a plurality of air guide holes 43 and a plurality of air guide channels 44; the partition 41 is arranged in the inner cavity of the assembly shell 2 along the radial direction of the assembly shell 2, the circumferential edge of the partition 41 is fixedly connected to the circumferential inner wall of the assembly shell 2, the partition 41 is located between the chimney 1 and the top port of the assembly shell 2, the partition 41 divides the inner cavity of the assembly shell 2 into an air guide cavity 21 and an exhaust cavity 22, and the air guide cavity 21 is connected to the smoke exhaust port 11; the assembly hole 42 It is opened on the partition 41, and the partition 41 is fixedly mounted on the circumferential side wall of the water tank 3 through the assembly hole 42, and the top port of the water tank 3 is connected to the exhaust cavity 22; a number of air guide holes 43 are arranged on the bottom wall of the inner cavity of the water tank 3, and the output end of any air guide hole 43 is connected to the bottom of the inner cavity of the water tank 3; a number of air guide channels 44 are embedded in the inner wall of the water tank 3, and the input end of the air guide channel 44 is connected to the top of the inner cavity of the air guide cavity 21, and the output end of the air guide channel 44 is connected to the input end of the air guide hole 43.

[0062] Further, if Figure 1 、 4 5, the air guide module also includes: a floating plate 45, a plurality of air distribution holes 46 and a plurality of dredging components 47; the floating plate 45 is movably arranged in the inner cavity of the water tank 3, and the floating plate 45 matches the radial cross-sectional shape of the water tank 3; a plurality of air distribution holes 46 are opened on the floating plate 45; a plurality of dredging components 47 are arranged on the floating plate 45, and the plurality of dredging components 47 are respectively connected to the plurality of air guide holes 43.

[0063] Further, if Figure 1 、 4 As shown in Figures 5 and 8, the dredging component 47 includes: an insert rod 471, a limiting protrusion 472 and a plurality of scrapers 473; the insert rod 471 is fixedly arranged at the bottom of the floating plate 45, and the insert rod 471 is movably connected to the air guide hole 43. Preferably, in this embodiment, the top outer diameter of the insert rod 471 is larger than the bottom outer diameter of the insert rod 471; the limiting protrusion 472 is fixedly arranged at the bottom end of the insert rod 471 for limiting the insert rod 471; a plurality of scrapers 473 are fixedly arranged on the circumferential side wall of the insert rod 471 for scraping off impurities attached to the circumferential inner wall of the air guide hole 43. Preferably, in this embodiment, the multiple layers of scrapers 473 arranged on the circumferential side wall of the insert rod 471 are staggered with each other. When the smoke flows through the air guide hole 43, the smoke passes through the gap between adjacent scrapers 473.

[0064] Further, if Figure 1 、 4 , 7, further comprising: a flow guide member 5, the flow guide member 5 is fixedly arranged on the circumferential inner wall of the assembly shell 2, the flow guide member 5 is funnel-shaped, the top port of the flow guide member 5 matches the radial cross-sectional shape of the inner cavity of the assembly shell 2, and the bottom port of the flow guide member 5 matches the position of the top port of the water tank 3.

[0065] Further, if Figure 1 、 4 As shown, it also includes: a pair of water vapor capture modules and an induced draft fan 7; the water vapor capture module is arranged on the assembly shell 2 to capture water vapor in the flue gas; the induced draft fan 7 is arranged in the top port of the assembly shell 2.

[0066] Further, if Figure 1 、 2 As shown in Figures 4, 6 and 7, the water vapor capture module includes: a pair of assembly windows 61, a number of water vapor capture ropes 62, a pair of winding components 63 and a pair of guide components 64; a pair of assembly windows 61 are opened on the side wall of the assembly shell 2, any assembly window 61 passes through the outer wall of the assembly shell 2 and is connected to the inner cavity of the assembly shell 2, and the pair of assembly windows 61 are arranged opposite to each other; a pair of winding components 63 are respectively arranged on the side walls of the assembly shell 2 on both sides; the middle sections of the number of water vapor capture ropes 62 pass through the pair of assembly windows 61 and are movably inserted into the inner cavity of the assembly shell 2, and a pair of water vapor capture ropes 62 are movably inserted into the inner cavity of the assembly shell 2. The water vapor capture ropes 62 of the steam capture module are arranged in an interlaced manner, and the two ends of any water vapor capture rope 62 are respectively connected to a pair of winding components 63; a pair of guide components 64 are respectively arranged in a pair of assembly windows 61, and a pair of guide components 64 are connected to several water vapor capture ropes 62, which are used to guide the water vapor capture ropes 62. During the operation of the induced draft fan 7, the flue gas flows from the bottom of the inner cavity of the assembly shell 2 toward the top port of the assembly shell 2. During this process, the outside air is sucked into the inner cavity of the assembly shell 2 through the assembly window 61 and mixed into the flue gas, thereby cooling the flue gas.

[0067] Further, if Figure 1 、 2 As shown in Figures 4 and 6, the guide assembly 64 includes: a plurality of limit members 641 and a plurality of rotating shafts 642; a plurality of limit members 641 are arranged in one of the assembly windows 61, and the two ends of any limit member 641 are respectively fixedly connected to the top wall of the inner cavity of the assembly window 61 and the bottom wall of the inner cavity of the assembly window 61, and the plurality of limit members 641 are arranged in parallel along the length direction of the assembly window 61, and the plurality of water vapor capture ropes 62 pass through the gaps between the plurality of limit members 641; a plurality of rotating shafts 642 are arranged in one of the assembly windows 61, and the two ends of any rotating shaft 642 are respectively rotatably connected to the side walls on both sides of the assembly window 61, and the plurality of rotating shafts 642 are arranged in parallel along the width direction of the assembly window 61, and the plurality of water vapor capture ropes 62 pass through the gaps between the plurality of rotating shafts 642.

[0068] Further, if Figure 1 、 3As shown in Figure 4, the winding assembly 63 includes: a carrying shell 631, a reel 632, a driving motor 633 and a refrigeration device 634; the carrying shell 631 is fixedly arranged on the side wall of one side of the assembly shell 2; the reel 632 is arranged in the inner cavity of the carrying shell 631, and the two ends of the reel 632 are respectively rotatably connected to the inner wall of the carrying shell 631, and one end of any water vapor capture rope 62 is wound around the reel 632; the driving motor 633 is fixedly arranged on the carrying shell 631, and the driving end of the driving motor 633 is connected to the reel 632 for driving the reel 632 to rotate; the refrigeration device 634 is fixedly arranged on the carrying shell 631, and the position of the refrigeration device 634 matches that of the reel 632.

[0069] Further, if Figure 1 、 4 As shown in FIG9 , the water vapor capture rope 62 is formed by interlacing and weaving a plurality of metal wires 621 and a plurality of water-absorbing bundles 622. In this embodiment, the metal wires 621 are made of a metal material with good thermal conductivity, and the water-absorbing bundles 622 are cotton bundles with good water absorption.

[0070] During the operation of the equipment, the induced draft fan 7 is started to extract the air and flue gas in the inner cavity of the assembly shell 2 and discharge it into the air guide cavity 21 through the exhaust port 11 at the top of the chimney 1, and then flow into the water tank 3 through a plurality of air guide channels 44 and a plurality of air guide holes 43 in sequence, and emerge from the bottom of the aqueous solution stored in the inner cavity of the water tank 3 to the water surface, and then enter the exhaust cavity 22 through the top port of the water tank 3. In the process of the flue gas entering the inner cavity of the water tank 3 and emerging from the bottom of the aqueous solution stored in the water tank 3 to the water surface, the aqueous solution is used to preliminarily cool the flue gas and capture particulate impurities in the flue gas. At the same time, in this process, the flue gas will also flow through a plurality of air distribution holes 46 opened on the floating plate 45, and the air distribution holes 46 will be used to disperse the flue gas into multiple small airflows to improve the efficiency of the aqueous solution in capturing particulate impurities mixed in the flue gas; when the flue gas emerges from the bottom of the aqueous solution stored in the water tank 3 In the process of emerging upward to the water surface, the buoyancy of the floating plate 45 changes within a certain range, causing it to float up and down in a small range in the aqueous solution. During this process, the floating plate 45 drives the insertion rod 471 to move synchronously, and uses multiple scrapers 473 set on the insertion rod 471 to continuously scratch the circumferential inner wall of the air guide hole 43 to prevent the air guide hole 43 from being blocked; after the flue gas enters the exhaust cavity 22, the flue gas rises from the bottom of the inner cavity of the exhaust cavity 22 to the top of the inner cavity of the exhaust cavity 22, and finally flows out through the top port of the assembly shell 2. During this process, the flue gas flows through the gaps between several water vapor capture ropes 62 of a pair of water vapor capture modules, and the water vapor capture ropes 62 with lower temperature are used to cool the flue gas for a second time. At the same time, the water vapor in the flue gas condenses into small water droplets on the outer surface of the water vapor capture ropes 62 with lower temperature, and finally achieves the purpose of capturing water vapor in the flue gas by using the water vapor capture module.

[0071] The working principle of the water vapor capture module is as follows: in the process of smoke passing through the gaps between several water vapor capture ropes 62 of a pair of water vapor capture modules, water vapor in the smoke condenses on the outer surface of the water vapor capture rope 62 to form water droplets. After gathering into water droplets, they are absorbed by the water absorption bundle 622 of the water vapor capture rope 62. After the temperature of the water vapor capture rope 62 located inside the exhaust cavity 22 rises, the driving motors 633 of a pair of winding assemblies 63 control a pair of reels 632 to rotate in the same direction at a certain angle, and reel the water vapor capture rope 62 located in the exhaust cavity 22 onto one of the reels 632. The refrigeration device 634 is used to cool down this section of water vapor capture rope 62, and at the same time, the water vapor capture rope 62 wound on the other reel 632 is released into the exhaust cavity 22 to capture water vapor in the smoke.

[0072] Above, refer to Figures 1 to 9 The multi-stage flue gas elimination device according to an embodiment of the present invention is described, which has the following beneficial effects:

[0073] 1. This device sets a water tank 3 pre-stored with an aqueous solution and an air guide module in the inner cavity of the assembly shell 2, guides the flue gas discharged from the chimney 1 into the aqueous solution stored in the water tank 3, and uses the aqueous solution to capture particulate impurities floating in the flue gas, thereby improving the flue gas purification effect of the device and solving the problem of poor flue gas purification effect in the prior art.

[0074] 2. This device movably sets a floating plate 45 with multiple insertion rods 471 at the bottom inside the water tank 3, and sets multiple scrapers 473 on the circumferential side wall of each insertion rod 471. When the smoke rises from the bottom of the inner cavity of the water tank 3 to the surface of the water, the floating plate 45 utilizes the kinetic energy generated in this process to drive the insertion rods 471 to move up and down in the air guide hole 43, thereby driving the scrapers 473 to scrape the inner wall of the air guide hole 43. The insertion rods 471 and the scrapers 473 are used to dredge the air guide hole 43 to prevent the air guide hole 43 from being blocked by particles floating in the smoke.

[0075] 3. The water vapor capture rope 62 of the present device is woven from a metal wire 621 and a water absorption harness 622, which not only ensures the tensile strength of the water vapor capture rope 62 but also takes advantage of the good water absorption property of the water absorption harness 622 to promptly absorb water droplets condensed on the water vapor capture rope 62, so as to facilitate bringing the water-saturated water absorption harness 622 into the supporting shell 631 and cooling it using the refrigeration device 634, thereby improving the water vapor capture effect of the water vapor capture product and further improving the flue gas purification effect of the present device.

[0076] It should be noted that, in this specification, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the elements.

[0077] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description is not intended to limit the present invention. After reading the above description, various modifications and substitutions of the present invention will become apparent to those skilled in the art. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A multi-stage flue gas elimination device, characterized in that: Includes: assembling shell, water tank and air guide module; The assembly shell is fixedly arranged on an external chimney, a smoke exhaust port of the chimney is located at the bottom of the inner cavity of the assembly shell, and the top of the assembly shell adopts an open design; The water tank is arranged in the inner cavity of the assembly shell, the water tank is located at the top of the chimney, the top of the water tank adopts an open design, and the inner cavity of the water tank is pre-stored with a water solution; The air guide module is arranged on the water tank, the air guide module is connected to the inner wall of the assembly shell, the air guide module is connected to the smoke exhaust port and the inner cavity of the water tank, and is used to introduce the smoke exhausted through the smoke exhaust port into the inner cavity of the water tank; The air guide module comprises: a partition, an assembly hole, a plurality of air guide holes and a plurality of air guide channels; The partition is arranged in the inner cavity of the assembly shell along the radial direction of the assembly shell, the circumferential edge of the partition is fixedly connected to the circumferential inner wall of the assembly shell, the partition is located between the chimney and the top port of the assembly shell, the partition divides the inner cavity of the assembly shell into an air guide cavity and an exhaust cavity, and the air guide cavity is connected to the smoke exhaust port; The assembly hole is opened on the partition, and the partition is fixedly sleeved on the circumferential side wall of the water tank through the assembly hole, and the top port of the water tank is connected with the exhaust cavity; The plurality of air guide holes are arranged on the bottom wall of the inner cavity of the water tank, and the output end of any of the air guide holes is connected to the bottom of the inner cavity of the water tank; The plurality of air guide channels are embedded in the inner wall of the water tank, the input end of the air guide channel is communicated with the inner cavity top of the air guide cavity, and the output end of the air guide channel is communicated with the input end of the air guide hole; The air guide module further comprises: a floating plate, a plurality of air distribution holes and a plurality of dredging components; The floating plate is movably arranged in the inner cavity of the water tank, and the floating plate matches the radial cross-sectional shape of the water tank; The plurality of air distribution holes are arranged on the floating plate; The plurality of dredging components are arranged on the floating plate, and the plurality of dredging components are respectively connected to the plurality of air guide holes.

2. The multi-stage flue gas elimination device according to claim 1, characterized in that: The dredging component comprises: an insertion rod, a limiting protrusion and a plurality of scrapers; The insertion rod is fixedly arranged at the bottom of the floating plate, and the insertion rod is movably plugged into the air guide hole; The limiting protrusion is fixedly arranged at the bottom end of the insertion rod and is used to limit the insertion rod; The plurality of scrapers are fixedly arranged on the circumferential side wall of the insertion rod and are used to scrape off impurities attached to the circumferential inner wall of the air guide hole.

3. The multi-stage flue gas bleaching device according to claim 1, characterized in that: It also includes: a flow guide member, which is fixedly arranged on the circumferential inner wall of the assembly shell, the flow guide member is funnel-shaped, the top port of the flow guide member matches the radial cross-sectional shape of the inner cavity of the assembly shell, and the bottom port of the flow guide member matches the position of the top port of the water tank.

4. The multi-stage flue gas elimination device according to claim 1, characterized in that: Also included: a pair of water vapor capture modules and induced draft fans; The water vapor capture module is arranged on the assembly housing and is used to capture water vapor in the flue gas; The induced draft fan is arranged in a top port of the assembly shell.

5. The multi-stage flue gas elimination device according to claim 4, characterized in that: The water vapor capture module comprises: a pair of assembly windows, a plurality of water vapor capture ropes, a pair of winding components and a pair of guide components; The pair of assembly windows are provided on the side wall of the assembly shell, any one of the assembly windows penetrates the outer wall of the assembly shell and communicates with the inner cavity of the assembly shell, and the pair of assembly windows are arranged opposite to each other; The pair of winding components are respectively arranged on the side walls on both sides of the assembly housing; The middle sections of the plurality of water vapor capture ropes are movably inserted into the inner cavity of the assembly shell through the pair of assembly windows, the water vapor capture ropes of the pair of water vapor capture modules are staggered with each other, and the two ends of any one of the water vapor capture ropes are respectively connected to the pair of winding components; The pair of guide components are respectively arranged in the pair of assembly windows, and the pair of guide components are connected to the plurality of water vapor capture ropes for guiding the water vapor capture ropes.

6. The multi-stage flue gas elimination device according to claim 5, characterized in that: The guide assembly includes: a plurality of limit members and a plurality of rotating shafts; The plurality of limiters are arranged in one of the assembly windows, and the two ends of any one of the limiters are respectively fixedly connected to the inner cavity top wall of the assembly window and the inner cavity bottom wall of the assembly window, the plurality of limiters are arranged in parallel along the length direction of the assembly window, and the plurality of water vapor capture ropes pass through the gaps between the plurality of limiters; The plurality of rotating shafts are arranged in one of the assembly windows, and both ends of any one of the rotating shafts are rotatably connected to the side walls on both sides of the assembly window respectively. The plurality of rotating shafts are arranged in parallel along the width direction of the assembly window, and the plurality of water vapor capture ropes pass through the gaps between the plurality of rotating shafts.

7. The multi-stage flue gas bleaching device according to claim 5, characterized in that: The winding assembly comprises: a bearing shell, a winding shaft, a driving motor and a refrigeration device; The bearing housing is fixedly arranged on a side wall of one side of the assembly housing; The reel is arranged in the inner cavity of the bearing shell, and the two ends of the reel are respectively rotatably connected to the inner wall of the bearing shell, and one end of any one of the water vapor capture ropes is rolled up and wound around the reel; The driving motor is fixedly arranged on the bearing housing, and the driving end of the driving motor is connected to the reel to drive the reel to rotate; The refrigeration device is fixedly arranged on the bearing shell, and the position of the refrigeration device matches that of the reel.

8. The multi-stage flue gas elimination device according to claim 5, characterized in that: The water vapor capture rope is formed by interlacing and weaving a plurality of metal wires and a plurality of water absorbing wire bundles.

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