An exhaust gas purification and treatment device

Abstract

The present invention discloses an exhaust gas purification and treatment device, belonging to the field of exhaust gas treatment, including a lower cylinder body and an upper cylinder body, and an absorption liquid circulation unit disposed between the lower cylinder body and the upper cylinder body for circulating the absorption liquid; a duct, disposed at the upper end of the upper cylinder body and communicating with the upper cylinder body; a fan, one end of which is communicated with the duct for accelerating the flow of the discharged gas; a discharge pipe, disposed at the other end of the fan; an anti-wall-flow packing mechanism, the two ends of which are respectively fixedly connected to the lower cylinder body and the upper cylinder body, and the three together form a purification tower body, which is used to prevent the absorption liquid wall-flow phenomenon while realizing the function of the packing plate, and can also achieve uniform redistribution. By setting the anti-wall-flow packing mechanism, firstly, compared with the prior art, it can uniformly redistribute the wall-flow liquid, making the gas-liquid phase distribution more uniform in the packing layer, improving the mass transfer efficiency, and thus improving the purification efficiency.

Description

Technical Field

[0001] The present invention relates to the field of waste gas treatment, and more specifically, to a waste gas purification treatment device. Background Art

[0002] Waste gas purification mainly refers to the work of treating industrial waste gas generated in industrial sites, such as dust particles, flue gas soot, odor gas, and toxic and harmful gases. It can be mainly divided into activated carbon adsorption method, regenerative catalytic combustion method, liquid water scrubbing purification method, UV ultraviolet method, and low-temperature plasma method, etc.

[0003] Among them, the corresponding device for the liquid water scrubbing purification method is a waste gas purification tower, and the waste gas inlet is located at the bottom of the waste gas purification tower and penetrates the tower body from bottom to top. The waste gas is absorbed and purified through a single layer or multiple layers of packing, and the clean waste gas will be discharged from the top of the tower to the system.

[0004] During the working process of the waste gas purification tower, the gas is fed from the bottom of the tower, distributed by the gas distribution device, and continuously passes through the gaps of the packing layer in countercurrent with the liquid. On the surface of the packing, the gas and the liquid are in close contact for mass transfer. When the liquid flows downward along the packing layer, wall flow sometimes occurs, resulting in uneven distribution of the gas-liquid phase in the packing layer, thereby reducing the mass transfer efficiency.

[0005] In view of the above technical problems, the Chinese patent with the authorization announcement number CN104383872B discloses a regular packing tower embedded wall flow redistributor, which includes wall flow guide vanes, an outer liquid tank, an outer guide pipe, an intermediate liquid tank, an inner guide pipe, and an inner liquid tank. Through the action of this embedded wall flow redistributor, the wall flow liquid is redistributed onto the overall packing, and at the same time, due to the rotational flow form, the overall liquid mixing and redistribution are realized, which is beneficial to improving the separation efficiency.

[0006] However, during actual use, when the device redistributes the wall flow liquid to the lower packing layer, the liquid only flows out from each liquid tank and falls onto the surface of the lower packing layer in a circular manner. On this basis, if the number of liquid tanks is set too small, the packing surface between two circles cannot be distributed with liquid, so the liquid falling onto the surface of the lower packing layer is still unevenly distributed. If the number of liquid tanks is set too large, the flow channel for the purified gas to pass through will become narrow, which will affect the passage of the purified gas, reduce the purification efficiency of the purification tower, and is not conducive to maintaining the purification stability of the purification tower.

[0007] Therefore, a waste gas purification treatment device is proposed. Summary of the Invention

[0008] The purpose of the present invention is to provide a waste gas purification treatment device that can prevent the wall flow of the absorption liquid and can evenly redistribute the absorption liquid.

[0009] To solve the above problems, the present invention adopts the following technical solutions.

[0010] An exhaust gas purification and treatment device includes a lower cylinder body, an upper cylinder body, and an absorption liquid circulation unit disposed between the lower cylinder body and the upper cylinder body for circulating the absorption liquid; a duct is disposed at the upper end of the upper cylinder body and is communicated with the upper cylinder body; a fan is connected to one end of the duct for accelerating the flow of the discharged gas; a discharge pipe is disposed at the other end of the fan.

[0011] It further includes an anti-wall-flow packing mechanism, the two ends of which are respectively fixedly connected to the lower cylinder body and the upper cylinder body, and the three together form a purification tower body for preventing the absorption liquid wall flow phenomenon while realizing the function of the packing plate, and can also achieve uniform redistribution.

[0012] It includes a middle cylinder body, the upper and lower ends of which are respectively fixedly connected to the upper cylinder body and the lower cylinder body through fixedly connected connecting flanges; an upper packing layer and a lower packing layer are provided inside the middle cylinder body, and a flow collection and redistribution mechanism is provided at the position of the inner wall of the middle cylinder body close to the upper packing layer and the lower packing layer. A connecting pipe for communicating the two flow collection and redistribution mechanisms is provided on the inner wall of the middle cylinder body. Among them, a pump body is provided inside the flow collection and redistribution mechanism disposed at the lower end, one end of the pump body is fixedly connected to a main liquid pipe, the main liquid pipe penetrates and extends into the middle cylinder body, and spray pipes are provided on both sides of the main liquid pipe; two symmetrically distributed packing wind prevention mechanisms are also provided at the top of the middle cylinder body.

[0013] A torsion splitting mechanism is respectively fixedly connected to the outer surfaces of the lower cylinder body, the upper cylinder body and the anti-wall-flow packing mechanism for realizing the torsion splitting of the three-component combination.

[0014] Further, the flow collection and redistribution mechanism includes a liquid guiding skirt fixedly connected to the inner wall of the middle cylinder body, a through groove is provided on one side of the middle cylinder body close to the liquid guiding skirt, a filter housing is fixedly connected to the position of the outer circular surface of the middle cylinder body corresponding to the through groove, and a filter screen is provided at the middle position inside the filter housing. Among them, the vertical height of the filter screen is lower than that of the through groove.

[0015] Further, the liquid guiding skirt is arranged in a state of one end being high and the other end being low, and the through groove corresponds to the lower end of the liquid guiding skirt, so that the collected absorption liquid can smoothly pass through the through groove.

[0016] Further, the packing wind prevention mechanism includes a movable groove opened at the top edge of the middle cylinder body, a working groove is opened at the lower part of the middle cylinder body close to the movable groove, a limiting gear is rotatably connected inside the working groove, a positioning rod is fixedly connected to the lower end of the limiting gear, a rack is meshed and connected to one side of the limiting gear, the upper end of the rack penetrates the working groove and extends into the movable groove, a connecting rod is fixedly connected to the upper end of the rack, a pressing ring is fixedly connected to the upper end of the connecting rod, and a spring is further provided between the movable groove and the pressing ring, and the spring is sleeved outside the connecting rod.

[0017] Further, one end of the positioning rod is fixedly connected to the film top ball, and an elastic membrane is fixedly connected to the middle cylinder body corresponding to the working groove. The elastic membrane is a component made of cis-butadiene rubber.

[0018] Further, when the rack descends to the bottom of the working groove, the positioning rod rotates to the horizontal position; a limiting rod is also provided at the top of one side of the working groove, which can limit the positioning rod in the horizontal position to prevent the excessive wind force from damaging the meshing between the limiting gear and the rack.

[0019] Further, a sealing ring is embedded in the inner wall of the pressing ring, and chamfers are provided at the outer edges of the pressing ring and the sealing ring.

[0020] Further, the torsion splitting mechanism includes a cylinder connecting frame fixedly connected to the lower cylinder body and the upper cylinder body. A motor is fixedly connected to the middle position of the cylinder connecting frame. The output end of the motor is fixedly connected to a rotating gear. One side of the rotating gear is meshed and connected to an arc-shaped tooth plate. One end of the arc-shaped tooth plate is fixedly connected to a support rod and is fixedly connected to the middle cylinder body through the support rod. A fixing rod is fixedly connected above the motor on one side of the cylinder connecting frame, and the lower end of the fixing rod is rotatably connected to the support rod.

[0021] Further, a laser sensor is fixedly connected to the lower position on one side of the cylinder connecting frame, and a reflector is fixedly connected to one side of the lower surface of the support rod.

[0022] Further, a mask is provided at the upper end of the cylinder connecting frame for protecting the rotating gear and the arc-shaped tooth plate, and the mask does not affect the normal operation of the torsion splitting mechanism.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] (1) By setting the anti-wall-flow packing mechanism in this application, first of all, compared with the prior art, it can achieve uniform redistribution of the wall-flow liquid, making the gas-liquid phase more uniformly distributed in the packing layer, improving the mass transfer efficiency, and then improving the purification efficiency. Secondly, the anti-wall-flow packing mechanism is composed of two sets of flow-collecting and redistributing mechanisms, which are respectively arranged below the upper packing layer and the lower packing layer, and can collect and redistribute the wall-flow liquid flowing out twice, making the collection of the wall-flow liquid more complete. Moreover, the flow-collecting and redistributing mechanism arranged at the lower end can also prevent the wall-flow liquid flowing out of the lower packing layer from flowing down along the inner walls of the middle cylinder body and the lower cylinder body all the time, effectively slowing down the corrosion of the middle cylinder body and the lower cylinder body side walls by the absorption liquid, and then extending the service life of the middle cylinder body and the lower cylinder body. Finally, by setting a filter housing and a filter screen inside the flow-collecting and redistributing mechanism, it can prevent particulate impurities such as dust in the absorption liquid from blocking the spray pipe, ensuring the normal operation of the anti-wall-flow packing mechanism;

[0025] (2) The present application sets a packing windproof mechanism to limit the upper packing layer, thereby preventing the upper packing layer from tipping over due to excessive wind force, thereby ensuring the normal operation of the purification tower. At the same time, since the packing windproof mechanism of the present application works by utilizing the pressure of the upper cylinder, when the anti-wall flow packing mechanism is disassembled, the packing windproof mechanism can be automatically opened under the elastic potential energy of the spring, thereby facilitating the cleaning and replacement of the spray pipe and the upper and lower packing layers;

[0026] (3) The present application fixes an elastic membrane at the position corresponding to the working groove. The elastic membrane is a component made of butadiene rubber, which has high elasticity and corrosion resistance. When the positioning rod is working, the elastic membrane can be stretched to ensure the normal operation of the positioning rod. At the same time, the elastic membrane can prevent the absorption liquid from entering the working groove, and protect the limit gear and the rack. At the same time, a film top ball is provided at one end of the positioning rod to prevent the positioning rod from scratching the elastic membrane.

[0027] (4) The present application sets a twisting and splitting mechanism, which can conveniently separate the anti-wall flow packing mechanism from the upper cylinder and the lower cylinder, thereby facilitating the cleaning and replacement of the spray pipe and the upper packing layer and the lower packing layer. There is no need for staff to enter the tower from the inspection port to perform operations, which reduces the labor intensity of the staff and improves the cleaning and replacement efficiency. At the same time, through the cooperation of the laser sensor and the reflective plate, when the twisting and splitting mechanism works to return the anti-wall flow packing mechanism to its position, it can ensure that the anti-wall flow packing mechanism is aligned with the upper cylinder and the lower cylinder, thereby ensuring the sealing of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a front perspective structural schematic diagram of the present invention;

[0029] Figure 2 It is a schematic diagram of the appearance structure of the wall flow prevention packing mechanism of the present invention;

[0030] Figure 3 It is a schematic cross-sectional structure diagram of the wall flow prevention packing mechanism of the present invention;

[0031] Figure 4 It is a schematic diagram of the three-dimensional structure of the liquid-conducting skirt of the present invention;

[0032] Figure 5 For the present invention Figure 3 An enlarged structural diagram of the windproof mechanism of the middle filler;

[0033] Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure at A in the middle;

[0034] Figure 7 It is a rear-view stereoscopic structural schematic diagram of the present invention;

[0035] Figure 8 For the present invention Figure 7 is a schematic structural diagram of part B in the present invention.

[0036] Description of the reference numerals in the figure:

[0037] 1. Lower cylinder body; 2. Anti-wall-flow packing mechanism; 21. Middle cylinder body; 22. Connecting flange; 23. Packing wind-proof mechanism; 231. Movable groove; 232. Rack; 233. Working groove; 234. Connecting rod; 235. Pressure ring; 236. Spring; 237. Limit rod; 238. Limit gear; 239. Positioning rod; 2310. Elastic membrane; 2311. Thin film top ball; 2312. Sealing ring; 24. Upper packing layer; 25. Lower packing layer; 26. Liquid guiding skirt; 27. Through groove; 28. Filter screen; 29. Filter housing; 210. Connecting pipe; 211. Pump body; 212. Main liquid pipe; 213. Spray pipe; 3. Torsion splitting mechanism; 31. Mask; 32. Cylinder connecting frame; 33. Support rod; 34. Fixed rod; 35. Motor; 36. Rotating gear; 37. Arc-shaped tooth plate; 38. Laser sensor; 39. Reflector; 4. Absorbing liquid circulation unit; 5. Upper cylinder body; 6. Air duct; 7. Fan; 8. Discharge pipe. Specific embodiments

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] Please refer to Figures 1 to 8 , an exhaust gas purification and treatment device, the processing air volume of the device is 4000 m3 / h, the total pressure loss is 25 mmHg, the wind pressure parameter is 4096 - 6953 m3 / h, the power of the fan 7 is 2.2 kw, and the power of the circulation pump inside the absorbing liquid circulation unit 4 is 1.5 kw;

[0040] It includes a lower cylinder body 1 and an upper cylinder body 5, and an absorbing liquid circulation unit 4, which is arranged between the lower cylinder body 1 and the upper cylinder body 5 for circulating the absorbing liquid; an air duct 6, which is arranged at the upper end of the upper cylinder body 5 and communicates with the upper cylinder body 5; a fan 7, one end of which communicates with the air duct 6 for accelerating the flow of the discharged gas; a discharge pipe 8, which is arranged at the other end of the fan 7;

[0041] It further includes an anti-wall-flow packing mechanism 2, the two ends of which are respectively fixedly connected to the lower cylinder body 1 and the upper cylinder body 5, and the three together form a purification tower body, which is used to prevent the occurrence of absorbing liquid wall flow phenomenon while realizing the function of the packing plate, and can also achieve uniform redistribution;

[0042] It includes a middle cylinder body 21, the upper and lower ends of which are respectively fixedly connected to the upper cylinder body 5 and the lower cylinder body 1 through fixedly connected connecting flanges 22; an upper packing layer 24 and a lower packing layer 25 are arranged inside the middle cylinder body 21, and flow collection and redistribution mechanisms are arranged on the inner wall of the middle cylinder body 21 near the upper packing layer 24 and the lower packing layer 25. A connecting pipe 210 for connecting the two flow collection and redistribution mechanisms is arranged on the inner wall of the middle cylinder body 21. Among them, a pump body 211 is arranged inside the flow collection and redistribution mechanism arranged at the lower end. One end of the pump body 211 is fixedly connected to a main liquid pipe 212, and the main liquid pipe 212 penetrates and extends into the middle cylinder body 21, and spray pipes 213 are arranged on both sides of the main liquid pipe 212; two symmetrically distributed packing windproof mechanisms 23 are also arranged at the top of the middle cylinder body 21;

[0043] The torsion splitting mechanism 3 is fixedly connected to the outer surfaces of the lower cylinder body 1, the upper cylinder body 5 and the anti-wall-flow packing mechanism 2 respectively, and is used to realize the torsion splitting of the combination of the three.

[0044] As Figure 3 As shown in the figure, the flow collection and redistribution mechanism includes a liquid guide skirt 26 fixedly connected to the inner wall of the middle cylinder body 21. A through groove 27 is arranged on one side of the middle cylinder body 21 close to the liquid guide skirt 26. A filter shell 29 is fixedly connected to the position of the outer circular surface of the middle cylinder body 21 corresponding to the through groove 27. A filter screen 28 is arranged at the middle position inside the filter shell 29. Among them, the vertical height of the filter screen 28 is lower than that of the through groove 27.

[0045] As Figure 4 As shown in the figure, the liquid guide skirt 26 is arranged in a state where one end is high and the other end is low, and the through groove 27 is arranged corresponding to the lower end of the liquid guide skirt 26, so that the collected absorption liquid can smoothly pass through the through groove 27.

[0046] In view of the technical problem of uneven redistribution of wall-flow liquid existing in the prior art, the present application solves this problem by setting up a wall-flow prevention packing mechanism 2. During specific operation, the absorption liquid is first pumped into the tower through the absorption liquid circulation unit 4, and then sprayed from top to bottom. The absorption liquid passes through the upper packing layer 24 and comes into close contact with the waste gas for mass transfer, so that the absorption liquid absorbs toxic and harmful substances, dust and other impurities in the waste gas. Then the absorption liquid flows downward through the upper packing layer 24. Among them, most of the liquid falls onto the surface of the lower packing layer 25 through the upper packing layer 24 and continues to come into close contact with the waste gas for mass transfer. A small part of the absorption liquid will flow down along the side wall of the middle cylinder 21, which is called the wall-flow phenomenon. This will cause uneven distribution of gas-liquid phases in the packing layer, thereby reducing the mass transfer efficiency and affecting the purification efficiency. In the present application, flow collection and redistribution mechanisms are arranged below the side wall of the middle cylinder 21 near the upper packing layer 24 and the lower packing layer 25. The liquid guiding skirt 26 is used to collect the wall-flow liquid flowing out of the upper packing layer 24 and the lower packing layer 25, and then it is introduced into the filter housing 29 through the through groove 27, and the dust and other particulate impurities are removed through the filter screen 28. The two flow collection and redistribution mechanisms are connected through the connecting pipe 210, and finally converge into the inner bottom of the filter housing 29 at the lower end, and are pumped into the spray pipe 213 through the pump body 211 and the main liquid pipe 212, and the spray pipe 213 is used to achieve uniform redistribution of the wall-flow liquid.

[0047] By setting up the wall-flow prevention packing mechanism 2, first of all, compared with the prior art, it can achieve uniform redistribution of the wall-flow liquid, making the distribution of gas-liquid phases in the packing layer more uniform, improving the mass transfer efficiency, and thus improving the purification efficiency. Secondly, the wall-flow prevention packing mechanism 2 is composed of two sets of flow collection and redistribution mechanisms, which are respectively arranged below the upper packing layer 24 and the lower packing layer 25, and can collect and redistribute the wall-flow liquid flowing out twice, making the collection of the wall-flow liquid more complete. Moreover, the flow collection and redistribution mechanism arranged at the lower end can also prevent the wall-flow liquid flowing out of the lower packing layer 25 from flowing down along the inner walls of the middle cylinder 21 and the lower cylinder 1 all the time, which can effectively slow down the corrosion of the side walls of the middle cylinder 21 and the lower cylinder 1 by the absorption liquid, and thus extend the service life of the middle cylinder 21 and the lower cylinder 1. Finally, by arranging the filter housing 29 and the filter screen 28 inside the flow collection and redistribution mechanism, it can prevent particulate impurities such as dust in the absorption liquid from blocking the spray pipe 213, ensuring the normal operation of the wall-flow prevention packing mechanism 2.

[0048] Such as Figure 3 、 Figure 5As shown, the packing wind prevention mechanism 23 includes a movable groove 231 formed at the top edge of the middle cylinder body 21. A working groove 233 is formed in the lower part of the middle cylinder body 21 near the movable groove 231. A limiting gear 238 is rotatably connected inside the working groove 233. A positioning rod 239 is fixedly connected to the lower end of the limiting gear 238. A rack 232 is meshed and connected to one side of the limiting gear 238. The upper end of the rack 232 penetrates through the working groove 233 and extends into the movable groove 231. A connecting rod 234 is fixedly connected to the upper end of the rack 232. A pressing ring 235 is fixedly connected to the upper end of the connecting rod 234. A spring 236 is further arranged between the movable groove 231 and the pressing ring 235, and the spring 236 is sleeved outside the connecting rod 234.

[0049] As Figure 5 shown, one end of the positioning rod 239 is fixedly connected to a film top ball 2311. An elastic film 2310 is fixedly connected to the middle cylinder body 21 at the position corresponding to the working groove 233. The elastic film 2310 is a component made of cis-butadiene rubber.

[0050] As Figure 5 shown, when the rack 232 descends to the bottom of the working groove 233, the positioning rod 239 rotates to a horizontal position. A limiting rod 237 is further arranged at the top of one side of the working groove 233, which can limit the positioning rod 239 in the horizontal position to prevent the meshing between the limiting gear 238 and the rack 232 from being damaged by excessive wind force.

[0051] As Figure 6 shown, a sealing ring 2312 is embedded in the inner wall of the pressing ring 235, and chamfers are arranged on the outer edges of the pressing ring 235 and the sealing ring 2312 to facilitate the entry of the anti-wall flow packing mechanism 2 between the lower cylinder body 1 and the upper cylinder body 5. The sealing ring 2312 can ensure the sealing performance after the connection between the middle cylinder body 21 and the upper cylinder body 5 and prevent the absorption liquid from leaking.

[0052] In the present application, the upper packing layer 24 and the lower packing layer 25 are supported only by the liquid guide skirt 26. During the operation of the purification tower, the exhaust gas usually passes through the tower body at a higher flow rate. If the wind force is strong, the upper packing layer 24 is easily blown upward (the lower packing layer 25 will not have this problem due to the obstruction of the spray pipe 213), thereby causing the purification tower to fail to work normally. The present application solves this problem by setting a packing windproof mechanism 23. During specific operation, if the wall flow prevention packing mechanism 2 is in a disassembled state, when it is combined with the lower cylinder 1 and the upper cylinder 5, the pressure ring 235 inside the wall flow prevention packing mechanism 2 is squeezed by the bottom edge of the upper cylinder 5 and will move toward the movable groove 231. The internal contraction and the descent of the pressure ring 235 will drive the spring 236 to compress, and at the same time drive the connecting rod 234 and the rack 232 to descend. When the rack 232 descends inside the working groove 233, it will drive the limiting gear 238 meshing with it to rotate. After the pressure ring 235 is completely retracted into the movable groove 231, the rack 232 descends to the bottom of the working groove 233. At this time, the limiting gear 238 just drives the positioning rod 239 fixed to it to rotate to a horizontal position. The positioning rod 239 extending from the two packing windproof mechanisms 23 can limit the upper packing layer 24, thereby preventing the wind from being too strong and blowing the upper packing layer 24 to overturn, causing the purification tower to be unable to work;

[0053] The present application sets a packing windproof mechanism 23, which can limit the upper packing layer 24, prevent the rollover problem caused by excessive wind force, and ensure the normal operation of the purification tower. At the same time, since the packing windproof mechanism 23 of the present application works by using the pressure of the upper cylinder 5, when the anti-wall flow packing mechanism 2 is disassembled, the packing windproof mechanism 23 can be automatically opened under the elastic potential energy of the spring 236, so as to facilitate the cleaning and replacement of the spray pipe 213 and the upper packing layer 24 and the lower packing layer 25;

[0054] In addition, since the working groove 233 is connected to the interior of the middle cylinder 21, during the operation of the purification tower, the absorption liquid will enter the working groove 233 and cause corrosion to the limit gear 238 and the rack 232. The present application fixes the elastic membrane 2310 at the position corresponding to the working groove 233. The elastic membrane 2310 is a component made of butadiene rubber with high elasticity and corrosion resistance. When the positioning rod 239 is working, the elastic membrane 2310 can be stretched open to ensure the normal operation of the positioning rod 239. At the same time, the elastic membrane 2310 can prevent the absorption liquid from entering the working groove 233, thereby protecting the limit gear 238 and the rack 232. At the same time, a film top ball 2311 is provided at one end of the positioning rod 239 to prevent the positioning rod 239 from scratching the elastic membrane 2310.

[0055] like Figure 1 , Figure 7 and Figure 8As shown in the figure, the torsion splitting mechanism 3 includes a cylinder connecting frame 32 fixedly connected to the lower cylinder body 1 and the upper cylinder body 5. A motor 35 is fixedly connected to the middle position of the cylinder connecting frame 32. The output end of the motor 35 is fixedly connected to a rotating gear 36. One side of the rotating gear 36 is meshed and connected to an arc-shaped tooth plate 37. One end of the arc-shaped tooth plate 37 is fixedly connected to a support rod 33, and is fixedly connected to the middle cylinder body 21 through the support rod 33. A fixing rod 34 is fixedly connected to one side of the cylinder connecting frame 32 above the motor 35. The lower end of the fixing rod 34 is rotatably connected to the support rod 33.

[0056] As Figure 8 shown, a laser sensor 38 is fixedly connected to a position below the motor 35 on one side of the cylinder connecting frame 32. A reflecting plate 39 is fixedly connected to one side of the lower surface of the support rod 33.

[0057] As Figure 8 shown, a mask 31 is provided at the upper end of the cylinder connecting frame 32 for protecting the rotating gear 36 and the arc-shaped tooth plate 37, and the mask 31 does not affect the normal operation of the torsion splitting mechanism 3.

[0058] In the application, since the spray pipe 213 inside the anti-wall-flow packing mechanism 2 is arranged between the upper packing layer 24 and the lower packing layer 25, and the two groups of packing layers are relatively close to each other, when the spray pipe 213 is blocked, it is difficult to clean the spray pipe 213. At the same time, in the prior art, the cleaning and replacement of the upper packing layer 24 and the lower packing layer 25 are also relatively cumbersome. The staff needs to enter the tower from the inspection opening, which is time-consuming and laborious, and the efficiency is low. To solve the above problems, the present application solves this by setting the torsion splitting mechanism 3. Specifically, during operation, first, manually open the connecting flange 22 between the middle cylinder body 21, the lower cylinder body 1, and the upper cylinder body 5, and then the motor 35 can be controlled to work. The motor 35 will drive the rotating gear 36 to rotate. Since the arc-shaped tooth plate 37 is meshed and connected to the rotating gear 36, when the rotating gear 36 rotates, it will drive the arc-shaped tooth plate 37 to rotate to one side. Then, with the connection position between the fixing rod 34 and the support rod 33 as the fulcrum, the middle cylinder body 21 will move in the opposite direction of the movement of the arc-shaped tooth plate 37, so that the anti-wall-flow packing mechanism 2 is separated from the upper cylinder body 5 and the lower cylinder body 1, thus facilitating the cleaning and replacement of the spray pipe 213, the upper packing layer 24, and the lower packing layer 25.

[0059] By setting the torsion splitting mechanism 3 in the present application, the anti-wall-flow packing mechanism 2 can be conveniently separated from the upper cylinder body 5 and the lower cylinder body 1, thus facilitating the cleaning and replacement of the spray pipe 213, the upper packing layer 24, and the lower packing layer 25. It is not necessary for the staff to enter the tower from the inspection opening for operation, which reduces the labor intensity of the staff and improves the cleaning and replacement efficiency. At the same time, through the cooperation of the laser sensor 38 and the reflecting plate 39, when the torsion splitting mechanism 3 works to make the anti-wall-flow packing mechanism 2 return to its position, the alignment of the anti-wall-flow packing mechanism 2 with the upper cylinder body 5 and the lower cylinder body 1 can be ensured, and the sealing performance of the connection can be guaranteed.

[0060] Usage method: When the present invention is in use, first, the absorption liquid circulation unit 4 is used to add the absorption liquid into the purification tower. Then, the waste gas enters the tower from the air inlet opened on the lower cylinder body 1. The waste gas flows from bottom to top, and the absorption liquid flows from top to bottom in the tower. The waste gas is absorbed and purified through the anti-wall-flow packing mechanism 2. The clean waste gas will be discharged into the fan 7 through the air duct 6 at the top of the tower and can be discharged into the air by using the fan 7 to complete the purification operation of the waste gas. During the purification process of the waste gas, the anti-wall-flow packing mechanism 2 can prevent the wall flow of the absorption liquid, making the gas-liquid phase more evenly distributed in the packing layer, improving the mass transfer efficiency, and thus improving the purification efficiency. After the anti-wall-flow packing mechanism 2 is used for a long time, the spray pipe 213 is prone to blockage. At this time, through the torsion and disassembly mechanism 3, the anti-wall-flow packing mechanism 2 can be conveniently separated from the upper cylinder body 5 and the lower cylinder body 1, so as to facilitate the cleaning and replacement of the spray pipe 213, the upper packing layer 24, and the lower packing layer 25.

[0061] The above is only the preferred specific implementation mode of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An exhaust gas purification and treatment device, including a lower cylinder body (1) and an upper cylinder body (5), and, An absorption liquid circulation unit (4), arranged between the lower cylinder body (1) and the upper cylinder body (5), for circulating the absorption liquid; An air duct (6), arranged at the upper end of the upper cylinder body (5) and communicated with the upper cylinder body (5); A fan (7), one end of which is communicated with the air duct (6), for accelerating the flow of the discharged gas; A discharge pipe (8), arranged at the other end of the fan (7); It is characterized in that: It also includes, A wall flow prevention packing mechanism (2), the two ends of which are respectively fixedly connected with the lower cylinder body (1) and the upper cylinder body (5), and the three jointly form a purification tower body, which is used to prevent the occurrence of absorption liquid wall flow phenomenon while realizing the function of the packing plate, and can also realize uniform redistribution; It includes a middle cylinder body (21), the upper and lower ends of which are respectively fixedly connected with the upper cylinder body (5) and the lower cylinder body (1) through fixedly connected connecting flanges (22); An upper packing layer (24) and a lower packing layer (25) are arranged inside the middle cylinder body (21), and flow collection and redistribution mechanisms are arranged at positions on the inner wall of the middle cylinder body (21) close to the upper packing layer (24) and the lower packing layer (25). A connecting pipe (210) for communicating the two flow collection and redistribution mechanisms is arranged on the inner wall of the middle cylinder body (21). Among them, a pump body (211) is arranged inside the flow collection and redistribution mechanism arranged at the lower end. One end of the pump body (211) is fixedly connected with a main liquid pipe (212), and the main liquid pipe (212) penetrates and extends into the middle cylinder body (21), and spray pipes (213) are arranged on both sides of the main liquid pipe (212); Two symmetrically distributed packing wind prevention mechanisms (23) are also arranged at the top of the middle cylinder body (21); A torsion splitting mechanism (3), fixedly connected with the outer surfaces of the lower cylinder body (1), the upper cylinder body (5) and the wall flow prevention packing mechanism (2) respectively, for realizing the torsion splitting of the combined body of the three; The flow collection and redistribution mechanism includes a liquid guiding skirt (26) fixedly connected to the inner wall of the middle cylinder body (21). A through groove (27) is arranged on one side of the middle cylinder body (21) close to the liquid guiding skirt (26). A filter housing (29) is fixedly connected to the outer circular surface of the middle cylinder body (21) corresponding to the through groove (27). A filter screen (28) is arranged at the middle position inside the filter housing (29). Among them, the vertical height of the filter screen (28) is lower than that of the through groove (27). The liquid guiding skirt (26) is arranged in a state of one end being high and the other end being low, and the through groove (27) corresponds to the lower end of the liquid guiding skirt (26), so that the collected absorption liquid can smoothly pass through the through groove (27); The torsion splitting mechanism (3) includes a cylinder connecting frame (32) fixedly connected to the lower cylinder body (1) and the upper cylinder body (5). A motor (35) is fixedly connected to the middle position of the cylinder connecting frame (32). The output end of the motor (35) is fixedly connected with a rotating gear (36). One side of the rotating gear (36) is meshed and connected with an arc-shaped tooth plate (37). One end of the arc-shaped tooth plate (37) is fixedly connected with a support rod (33), and is fixedly connected to the middle cylinder body (21) through the support rod (33). A fixing rod (34) is fixedly connected to one side of the cylinder connecting frame (32) above the motor (35). The lower end of the fixing rod (34) is rotatably connected to the support rod (33). A laser sensor (38) is fixedly connected to one side of the cylinder connecting frame (32) below the motor (35). A reflecting plate (39) is fixedly connected to one side of the lower surface of the support rod (33). A mask (31) is provided at the upper end of the cylinder connecting frame (32) for protecting the rotating gear (36) and the arc-shaped tooth plate (37), and the mask (31) does not affect the normal operation of the torsion splitting mechanism (3). The packing windproof mechanism (23) includes a movable groove (231) opened at the top edge of the middle cylinder body (21). A working groove (233) is opened in the lower part of the middle cylinder body (21) near the movable groove (231). A limiting gear (238) is rotatably connected inside the working groove (233). A positioning rod (239) is fixedly connected to the lower end of the limiting gear (238). One side of the limiting gear (238) is meshed and connected with a rack (232). The upper end of the rack (232) penetrates through the working groove (233) and extends into the movable groove (231). A connecting rod (234) is fixedly connected to the upper end of the rack (232). A pressing ring (235) is fixedly connected to the upper end of the connecting rod (234). A spring (236) is further provided between the movable groove (231) and the pressing ring (235), and the spring (236) is sleeved outside the connecting rod (234). One end of the positioning rod (239) is fixedly connected with a film top ball (2311). An elastic film (2310) is fixedly connected to the middle cylinder body (21) corresponding to the working groove (233), and the elastic film (2310) is a component made of cis-butadiene rubber. When the rack (232) descends to the bottom of the working groove (233), the positioning rod (239) rotates to a horizontal position. A limiting rod (237) is further provided at the top of one side of the working groove (233), which can limit the positioning rod (239) in the horizontal position to prevent the meshing between the limiting gear (238) and the rack (232) from being damaged by excessive wind force.

2. An exhaust gas purification treatment device according to claim 1, characterized in that: A sealing ring (2312) is embedded in the inner wall of the pressing ring (235), and chamfers are provided on the outer edges of both the pressing ring (235) and the sealing ring (2312).

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