A hydrogen chloride tail gas purification device

Abstract

This invention relates to the field of exhaust gas purification equipment technology, and discloses a hydrogen chloride exhaust gas purification device comprising two main bodies. In this invention, the porous disk slides down to the large-diameter portion of the fixed sleeve, and the inner wall of the porous disk no longer contacts the inner wall of the fixed sleeve. At this time, the porous disk causes the adsorbent to sway under the flow of gas. Through the backwash and swaying of the adsorbent, the static friction between the adsorbent particles can be disrupted, thereby restoring the bed porosity. This reduces the reduction in gaps and density of the adsorbent particles caused by prolonged downward gas flow, resulting in a compacted layer. While ensuring the flow velocity of the gas through the adsorbent, it also increases the contact area between the gas and the adsorbent, improving the exhaust gas purification efficiency, further enhancing the stability of the exhaust gas flow, and increasing the utilization rate of the adsorbent during purification.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of tail gas purification equipment, in particular to a hydrogen chloride tail gas purification device. BACKGROUND

[0002] Hydrogen chloride is a colorless non-combustible gas with a very irritating odor, a specific gravity greater than air, white fog generated when meeting humid air, extremely soluble in water to generate hydrochloric acid, strong corrosive, can react with many metals to generate hydrogen, can form an explosive mixture with air, and can produce toxic hydrogen cyanide when meeting cyanide;

[0003] When tail gas is purified by an adsorption tower, an adsorbent is generally placed in the adsorption tower to purify the tail gas by contact between the adsorbent and the tail gas. When the tail gas flows downward in the adsorption tower and passes through the adsorbent, the flowing tail gas can generate a downward pressure on the adsorbent bed, which can easily cause the gap between the adsorbent particles to be reduced, the bed density to be increased, and a compacted layer to be formed under the long-time flow of the tail gas, which can easily affect the flow speed of the gas passing through the adsorbent and can also easily cause the contact area between the gas and the adsorbent to be reduced, thereby affecting the tail gas purification efficiency and stability. SUMMARY

[0004] The application aims to provide a hydrogen chloride tail gas purification device to solve the problems in the background.

[0005] To solve the above technical problems, the application is implemented by the following technical scheme:

[0006] The application is a hydrogen chloride tail gas purification device, which comprises two main bodies and further comprises:

[0007] The shaking mechanism is installed in the interior of the main body and is used for preventing the adsorbent from being compacted when the adsorbent is placed in the purification tail gas.

[0008] The auxiliary mechanism is installed in the interior of the shaking mechanism and is used for preventing the adsorbent from being spilled when the shaking mechanism works.

[0009] Further, the two main bodies are fixedly connected with an electromagnetic switch, the top of the first main body is fixedly connected with a connecting pipe, the end of the connecting pipe away from the main body is fixedly connected with a condenser, and the end of the main body away from the connecting pipe is fixedly connected with a conveying fan.

[0010] The top of the conveying fan is fixedly connected with a vertical pipe, the end of the vertical pipe away from the conveying fan is fixedly connected with a cyclone separator, and the front of the cyclone separator is fixedly connected with an air inlet pipe.

[0011] Further, the main body comprises an air outlet pipe fixedly connected to the right side of the main body, and a chlorine organic matter detection sensor is fixedly connected to the inner wall of the air outlet pipe.

[0012] The fixed assembly is arranged inside the main body;

[0013] The sliding assembly is arranged inside the fixed assembly.

[0014] Further, the shaking mechanism includes a plurality of short plates arranged inside the fixed assembly, and the shaking mechanism further includes:

[0015] The swinging assembly is arranged on the side wall of the short plate.

[0016] Further, the auxiliary mechanism includes:

[0017] The movable assembly is arranged inside the fixed assembly.

[0018] Further, the fixed assembly includes two fixed sleeves fixedly connected inside the main body, the bottom of the fixed sleeve is arranged in an arc shape, the top of the fixed sleeve is bolted with a breathable net, and the inner wall of the top of the fixed sleeve is fixedly connected with a plurality of reset springs.

[0019] The bottom of the plurality of reset springs is fixedly connected with a perforated disc.

[0020] Further, the sliding assembly includes a plurality of L plates one arranged inside the fixed sleeve, the bottom of the L plate one is fixedly connected with a sliding ring, the bottom of the sliding ring is fixedly connected with a plurality of linear springs, and the bottom of the linear spring is fixedly connected with the inner wall of the fixed sleeve.

[0021] The bottom of the sliding ring is fixedly connected with a flexible layer one, and the end of the flexible layer one away from the L plate one is fixedly connected with the bottom inner wall of the fixed sleeve.

[0022] Further, the top of the plurality of short plates is fixedly connected with the bottom of the breathable net.

[0023] The swinging assembly includes an L plate two rotatably connected to the side wall of the short plate, and the side wall of the L plate two is fixedly connected with a horizontal plate.

[0024] Further, the inside of the horizontal plate is slidably connected with an arc-shaped plate, the arc-shaped plate is rotatably connected with an intermediate plate away from the side of the horizontal plate, and the side of the intermediate plate away from the arc-shaped plate is rotatably connected with the side wall of the short plate.

[0025] Further, the movable assembly includes a plurality of movable plates one rotatably connected to the inner wall of the fixed sleeve, and the inside of the movable plate one is slidably connected with a movable plate two.

[0026] The side wall of the movable plate two is rotatably connected to the inner wall of the fixed sleeve, the flexible layer two is fixedly connected between the two movable plates two, the side wall of the movable plate two is fixedly connected with a bending spring, and the end of the bending spring away from the movable plate two is fixedly connected with the inner wall of the fixed sleeve.

[0027] The present application has the following advantages:

[0028] 1、The porous disc slides to the large aperture of the fixing sleeve, the inner wall of the porous disc is no longer in contact with the inner wall of the fixing sleeve, at this time the porous disc drives the adsorbent to shake under the flow of gas, through the backflushing and shaking of the adsorbent, the static friction between the adsorbent particles can be broken, thereby restoring the bed void, reducing the gap between the adsorbent particles caused by the long-time downward flow of gas, increasing the density and forming a compacted layer, ensuring the flow speed of the gas through the adsorbent, increasing the contact area of the gas and the adsorbent, improving the tail gas purification efficiency, and further improving the stability of the tail gas flow and the utilization rate of the adsorbent during purification.

[0029] 2、The L plate two shakes back and forth and guides the downward flowing gas, at this time the gas can be uniformly distributed on the surface of the adsorbent inside the porous disc under the guidance of the L plate two swing, at the same time, the swing of the plurality of L plate two can guide the gas to flow downward and uniformly distribute, and can also blow the top of the adsorbent through the gas, ensuring the uniform downward flow of the gas and improving the uniformity of the gas passing through the adsorbent, improving the sufficiency of the adsorbent to the gas purification.

[0030] 3、When the gas flows upward through the arc-shaped plate, the gas flowing to the top inner wall of the L plate two will be guided to flow back by the top inner wall of the L plate two, at this time part of the gas will circulate between the L plate two and the adsorbent, when the gas circulates at the top of the adsorbent, the circulating gas will roll up the adsorbent at the top, through the rolling up of the adsorbent, the loose of the adsorbent can be further ensured, and the impurities in the gas adhering to the top of the adsorbent during the adsorbent purifying the gas can be reduced, further enhancing the purification efficiency of the adsorbent to the gas, and improving the purification strength of the adsorbent to the gas purification.

[0031] 4、When the adsorbent inside the porous disc is loose, the porous disc will reset under the contraction potential of the reset spring, at the same time, the movable plate two will reset under the action of the bending spring, at this time, during the resetting of the movable plate two and the movable plate one, the movable plate one will push the residual adsorbent on the movable plate two into the porous disc, and after the reset of the porous disc, the side walls of the movable plate one and the movable plate two will be attached to the outer surface of the porous disc, ensuring the integrity of the adsorbent during purifying the tail gas, further improving the purification strength of the exhaust gas, and improving the purification efficiency.

[0032] Of course, any product implementing the present application does not necessarily need to achieve all the advantages described above at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the description of the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort based on these drawings.

[0034] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0035] Figure 2 It is a schematic diagram of the overall partial cross-sectional structure of the present application.

[0036] Figure 3 It is a schematic diagram of the partial cross-section of the fixed assembly of the present application.

[0037] Figure 4 It is a schematic diagram of the cross-sectional plane of the fixed assembly of the present application.

[0038] Figure 5 It is a schematic diagram of the bottom view of the sliding assembly of the present application.

[0039] Figure 6 It is a schematic diagram of the partial structure of the swing assembly of the present application.

[0040] Figure 7 It is a schematic diagram of the sliding assembly of the present application.

[0041] Figure 8 It is a schematic diagram of the Figure 3 enlarged view of A in the present application.

[0042] Figure 9 It is a schematic diagram of the movable assembly of the present application.

[0043] In the drawings, the components represented by each reference numeral are listed as follows:

[0044] In the drawings, 1 is the main body, 101 is the condenser, 102 is the conveying fan, 103 is the cyclone separator, 104 is the air inlet pipe, 11 is the fixed assembly, 111 is the fixed sleeve, 112 is the air-permeable mesh, 113 is the return spring, 114 is the perforated disc, 12 is the sliding assembly, 121 is the L-shaped plate one, 122 is the sliding ring, 123 is the flexible layer one, 2 is the rocking mechanism, 201 is the short plate, 21 is the swing assembly, 211 is the L-shaped plate two, 212 is the cross plate, 213 is the arc-shaped plate, 214 is the intermediate plate, 3 is the auxiliary mechanism, 31 is the movable assembly, 311 is the movable plate one, 312 is the movable plate two, and 313 is the flexible layer two. DETAILED DESCRIPTION

[0045] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those of ordinary skill in the art without creative efforts are within the scope of the present application.

[0046] Please refer to Figure 1 - Figure 9 As shown in the drawings, the present application is a hydrogen chloride tail gas purification device, comprising two main bodies 1, further comprising;

[0047] The shaking mechanism 2 is installed and arranged in the interior of the main body 1, and is used for preventing the adsorbent from being compacted when the tail gas is placed in the adsorbent.

[0048] The auxiliary mechanism 3 is installed and arranged in the interior of the shaking mechanism 2, and is used for preventing the adsorbent from being spilled when the shaking mechanism 2 works.

[0049] The two main bodies 1 are fixedly connected with an electromagnetic switch, the top of the first main body 1 is fixedly connected with a connecting pipe, the end of the connecting pipe away from the main body 1 is fixedly connected with a condenser 101, and the end of the main body 1 away from the connecting pipe is fixedly connected with a conveying fan 102.

[0050] The top of the conveying fan 102 is fixedly connected with a vertical pipe, the end of the vertical pipe away from the conveying fan 102 is fixedly connected with a cyclone separator 103, and the front of the cyclone separator 103 is fixedly connected with an air inlet pipe 104.

[0051] The main body 1 comprises an air outlet pipe 105 fixedly connected to the right side of the main body 1, and a chlorine organic matter detection sensor is fixedly connected to the inner wall of the air outlet pipe 105, and the main body 1 further comprises:

[0052] The fixing assembly 11 is installed and arranged in the interior of the main body 1.

[0053] The sliding assembly 12 is installed and arranged in the interior of the fixing assembly 11.

[0054] The shaking mechanism 2 comprises a plurality of short plates 201 arranged in the fixing assembly 11, and the shaking mechanism 2 further comprises:

[0055] The swinging assembly 21 is installed and arranged on the side wall of the short plate 201.

[0056] The auxiliary mechanism 3 comprises:

[0057] The movable assembly 31 is installed and arranged in the interior of the fixing assembly 11.

[0058] The fixed assembly 11 comprises two fixed sleeves 111 fixedly connected in the main body 1, the bottom of the fixed sleeve 111 is arc-shaped, the top of the fixed sleeve 111 is bolted with a breathable net 112, and the inner wall of the top of the fixed sleeve 111 is fixedly connected with a plurality of reset springs 113;

[0059] The bottom of the plurality of reset springs 113 is fixedly connected with a porous disc 114, first, the source of the tail gas is connected with the air inlet pipe 104, and the porous disc 114 in the main body 1 is added with adsorbent particles, then the conveying fan 102 is started, and when the gas enters the inside of the cyclone separator 103.

[0060] The sliding assembly 12 comprises a plurality of L plates 121 arranged in the fixed sleeve 111, the bottom of the L plate 121 is fixedly connected with a sliding ring 122, the bottom of the sliding ring 122 is fixedly connected with a plurality of linear springs, and the bottom of the plurality of linear springs is fixedly connected with the inner wall of the fixed sleeve 111;

[0061] The bottom of the sliding ring 122 is fixedly connected with a flexible layer 123, one end of the flexible layer 123 away from the L plate 121 is fixedly connected with the bottom inner wall of the fixed sleeve 111, when the porous disc 114 slides downward under the pushing of the gas, the downward sliding of the porous disc 114 will push the sliding ring 122 to slide downward through the L plate 121, and the flexible layer 123 will be in a relaxed state when the sliding ring 122 slides.

[0062] The top of the plurality of short plates 201 is fixedly connected with the bottom of the breathable net 112;

[0063] The swinging assembly 21 comprises an L plate 211 rotatably connected to the side wall of the short plate 201, the side wall of the L plate 211 is fixedly connected with a horizontal plate 212, when the gas flows downward through the breathable net 112, the gas flow will flow downward through the side wall of the plurality of L plates 211, at this time, the L plate 211 will swing back and forth in the process of gas flow.

[0064] The inside of the horizontal plate 212 is slidably connected with an arc-shaped plate 213, the side of the arc-shaped plate 213 away from the horizontal plate 212 is rotatably connected with an intermediate plate 214, the side of the intermediate plate 214 away from the arc-shaped plate 213 is rotatably connected with the side wall of the short plate 201, since the top of the intermediate plate 214 is rotatably connected with the short plate 201, when the L plate 211 rotates to the right, the bottom of the arc-shaped plate 213 will slide in the horizontal plate 212 under the pushing of the intermediate plate 214.

[0065] The movable assembly 31 comprises a plurality of movable plates 311 rotatably connected to the inner wall of the fixed sleeve 111, and the inside of the movable plate 311 is slidably connected with a movable plate 312;

[0066] The side wall of the second movable plate 312 is rotatably connected to the inner wall of the fixed sleeve 111. A flexible layer 313 is fixedly connected between the two movable plates 312. A bending spring is fixedly connected to the side wall of the second movable plate 312. The end of the bending spring away from the second movable plate 312 is fixedly connected to the inner wall of the fixed sleeve 111. The second movable plate 312 will be reset under the action of the bending spring. During the reset process of the second movable plate 312 and the first movable plate 311, the first movable plate 311 will push the adsorbent remaining on the second movable plate 312 into the porous disk 114.

[0067] In use, the exhaust gas source is first connected to the intake pipe 104, and adsorbent particles are added to the porous disc 114 inside the main body 1. Then, the conveying fan 102 is started. When the gas enters the cyclone separator 103, the cyclone separator 103 separates the liquid organic matter in the gas. Then, an external pipe is connected to the bottom of the cyclone separator 103 and the separated liquid is discharged through the pipe. The separated gas is then conveyed by the conveying fan 102 into the condenser 101, where the gas condenses into liquid. The gas then enters one of the main bodies 1. After the gas enters the main body 1, the adsorbent adsorbs the harmful substances in the gas, and the purified gas is discharged out through the exhaust pipe 105. Since the exhaust pipe 105 is equipped with a chlorine and organic matter detection sensor, when the chlorine and organic matter content in the gas increases, the exhaust pipe 105 will control the electromagnetic switch to switch between the two main bodies 1, thereby achieving gas purification.

[0068] When the gas flows downward through the permeable mesh 112 and is purified by the adsorbent, the adsorbent is prone to compaction due to the prolonged downward flow of the gas. When the adsorbent becomes compacted under prolonged gas flow, the gaps between the adsorbent molecules decrease, creating resistance as the gas passes through. With subsequent continuous gas intake, the compacted adsorbent pushes the porous disk 114 downwards. As the porous disk 114 slides downwards, it reaches the large aperture of the fixed sleeve 111 and stretches the return spring 113. At this point, some gas flows downwards through the adsorbent, while some flows downwards between the fixed sleeve 111 and the porous disk 114. Simultaneously, as the porous disk 114 slides downwards under the pressure of the gas, its downward movement pushes the sliding ring 122 downwards via the L-plate 121. The flexible layer 123 remains relaxed during the sliding of the sliding ring 122. At this time, the flexible layer 123 is in a relaxed state during the airflow direction. During downward flow, the gas adheres to the arc surface at the bottom of the fixed sleeve 111. Then, as the gas flows downward between the porous disk 114 and the inner wall of the fixed sleeve 111, the gas is guided by the arc surface at the bottom of the fixed sleeve 111 towards the bottom of the porous disk 114, generating an upward recoil force on the bottom of the porous disk 114 and the adsorbent inside. Simultaneously, as the porous disk 114 slides down to the large aperture of the fixed sleeve 111, the inner wall of the porous disk 114 no longer contacts the inner wall of the fixed sleeve 111. At this point, the porous disk 114 causes the adsorbent to sway under the flow of gas. Through the recoil and swaying of the adsorbent, the static friction between the adsorbent particles can be broken, thereby restoring the bed porosity. This reduces the reduction in gaps and density of the adsorbent particles caused by prolonged downward gas flow, resulting in a compacted layer. This ensures the flow velocity of the gas through the adsorbent while increasing the contact area between the gas and the adsorbent, improving the purification efficiency of the exhaust gas, further enhancing the stability of the exhaust gas flow and the utilization rate of the adsorbent during purification.

[0069] When the porous disk 114 slides the adsorbent downwards, the adsorbent separates from the bottom of L-plate 211. At this time, L-plate 211 can sway on the side wall of the short plate 201. Simultaneously, when the gas flows downwards through the permeable mesh 112, the gas flow passes through the side walls of multiple L-plates 211. During this gas flow, L-plates 211 sway back and forth, guiding the downward-flowing gas. Under the guidance of the swaying L-plates 211, the gas can flow downwards and be evenly distributed on the surface of the adsorbent inside the porous disk 114. At the same time, the swaying of multiple L-plates 211 can not only guide the gas to flow downwards evenly and distribute it, but also purge the top of the adsorbent with the gas, ensuring that the gas flows downwards evenly and improving the uniformity of the gas passing through the adsorbent, thus improving the adequacy of the adsorbent in purifying the gas.

[0070] When L-plate 211 rotates to the right during gas flow, its rotation causes the horizontal plate 212 to rotate synchronously. Since the top of the intermediate plate 214 is rotatably connected to the short plate 201, when L-plate 211 rotates to the right, the bottom of the arc-shaped plate 213 slides within the horizontal plate 212 under the push of the intermediate plate 214. At this time, the arc-shaped plate 213 forms an arc surface on the side wall of L-plate 211. As the gas flows downwards along the inclined side wall of L-plate 211, the downward-flowing gas is influenced by the arc surface of the arc-shaped plate 213 and flows upwards. When the airflow passes the arc-shaped plate... When the gas flows upward, it is guided by the inner wall of the top of L-plate 211 and flows back. At this time, some of the gas will circulate between L-plate 211 and the adsorbent. When the airflow circulates on the top of the adsorbent, the circulating airflow will roll up the adsorbent at the top. Rolling up the adsorbent can further ensure the looseness of the adsorbent and reduce the situation where impurities in the gas adhere to the top of the adsorbent when the adsorbent purifies the gas. This further enhances the purification efficiency of the adsorbent and increases the purification intensity of the adsorbent when purifying the gas.

[0071] When the porous disk 114 slides down to the large-diameter area of ​​the fixed sleeve 111, the edge of the porous disk 114 will be between multiple flexible layers 313. Subsequently, when the porous disk 114 shakes under the flow of air, the shaking of the porous disk 114 will push the movable plate 311 and the movable plate 312. At this time, the movable plate 312 will rotate downward under the shaking of the porous disk 114. When the movable plate 312 rotates downward, it will squeeze the inclined surface at the bottom of the movable plate 311. At this time, the movable plate 311 will rotate upward during the downward rotation of the movable plate 312. Subsequently, when the adsorbent inside the porous disk 114 leaks outward under the drive of the circulating airflow, the leaked adsorbent will be in the movable plate 311. At the top of plate 2, the sidewall of movable plate 2 312 can intercept the spilled adsorbent. Then, when the adsorbent inside the porous disk 114 loosens, the porous disk 114 will reset under the contraction potential energy of the reset spring 113. At the same time, movable plate 2 312 will reset under the action of the bending spring. During the reset process of movable plate 2 312 and movable plate 1 311, movable plate 1 311 will push the adsorbent remaining on movable plate 2 312 into the porous disk 114. After the porous disk 114 is reset, the sidewalls of movable plate 1 311 and movable plate 2 312 will adhere to the outer surface of the porous disk 114, ensuring the integrity of the adsorbent when purifying the exhaust gas and further improving the purification intensity and efficiency of the exhaust gas.

[0072] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A hydrogen chloride tail gas purification device, comprising two main bodies (1), characterized in that, Also includes; A shaking mechanism (2) is installed inside the main body (1) to prevent the adsorbent from compacting during the purification of exhaust gas; Auxiliary mechanism (3) is installed inside the main body (1) to prevent the adsorbent from leaking when the shaking mechanism (2) is working; An electromagnetic switch is fixedly connected between the two main bodies (1). A connecting pipe is fixedly connected to the top of the first main body (1). A condenser (101) is fixedly connected to the end of the connecting pipe away from the main body (1). A conveying fan (102) is fixedly connected to the end of the main body (1) away from the connecting pipe. A vertical pipe is fixedly connected to the top of the conveying fan (102), and a cyclone separator (103) is fixedly connected to the end of the vertical pipe away from the conveying fan (102). An air inlet pipe (104) is fixedly connected to the front of the cyclone separator (103). The main body (1) includes an outlet pipe (105) fixedly connected to the right side of the main body (1), and a chlorine organic matter detection sensor is fixedly connected to the inner wall of the outlet pipe (105). The main body (1) also includes: A fixing component (11) is installed inside the main body (1); A sliding component (12) is installed inside the fixed component (11); The swaying mechanism (2) includes several short plates (201) disposed inside the fixed component (11), and the swaying mechanism (2) further includes: A swing assembly (21) is mounted on the side wall of the short plate (201); The auxiliary mechanism (3) includes: The active component (31) is installed inside the fixed component (11); The fixing component (11) includes two fixing sleeves (111) fixedly connected inside the main body (1). The bottom of the fixing sleeve (111) is arc-shaped, and the top of the fixing sleeve (111) is bolted with a breathable mesh (112). Several return springs (113) are fixedly connected to the top inner wall of the fixing sleeve (111). A perforated disk (114) is fixedly connected to the bottom of several of the aforementioned return springs (113). The sliding assembly (12) includes a plurality of L-plates (121) disposed inside the fixed sleeve (111), and a sliding ring (122) is fixedly connected to the bottom of the plurality of L-plates (121). A plurality of linear springs are fixedly connected to the bottom of the sliding rings (122), and the bottom of the plurality of linear springs is fixedly connected to the inner wall of the fixed sleeve (111). The bottom of the sliding ring (122) is fixedly connected to a flexible layer (123), and the end of the flexible layer (123) away from the L plate (121) is fixedly connected to the bottom inner wall of the fixed sleeve (111). The tops of several of the aforementioned short plates (201) are fixedly connected to the bottom of the breathable mesh (112); The swing assembly (21) includes an L-plate two (211) rotatably connected to the side wall of the short plate (201), and a horizontal plate (212) is fixedly connected to the side wall of the L-plate two (211). The movable component (31) includes a plurality of movable plates (311) rotatably connected to the inner wall of the fixed sleeve (111), and movable plates (312) are slidably connected inside the movable plates (311). The side wall of the movable plate 2 (312) is rotatably connected to the inner wall of the fixed sleeve (111). A flexible layer 2 (313) is fixedly connected between the two movable plates 2 (312). A bending spring is fixedly connected to the side wall of the movable plate 2 (312). The end of the bending spring away from the movable plate 2 (312) is fixedly connected to the inner wall of the fixed sleeve (111).

2. The hydrogen chloride tail gas purification device according to claim 1, characterized in that: An arc-shaped plate (213) is slidably connected inside the horizontal plate (212). An intermediate plate (214) is rotatably connected to the side of the arc-shaped plate (213) away from the horizontal plate (212). The side of the intermediate plate (214) away from the arc-shaped plate (213) is rotatably connected to the side wall of the short plate (201).

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