Tail gas spraying dust removal device for polyaluminum chloride production

Abstract

The utility model discloses a tail gas spraying dust removal device for polyaluminum chloride production, and relates to the field of dust removal devices. Through the arrangement of the guide groove, the clamping groove, the supporting block and the positioning rod, when the exhaust pipe needs to be mounted and dismounted, the exhaust pipe can be fixed and unfixed only by rotating the positioning rod, so that the exhaust pipe is very convenient to dismount and mount, the time consumption for replacing the sealing gasket is effectively reduced, and the working efficiency is improved. Meanwhile, under the action of a plug pin, a positioning hole and a sliding groove, the positioning rod can be fixed after the position is changed, so that the position fixity of the positioning rod after movement is ensured, the stability of the positioning rod when the positioning rod limits the exhaust pipe is ensured, and under the action of a sealing assembly, the sealing performance between the exhaust pipe and the air inlet pipe is ensured; and the inner wall of the exhaust pipe abuts against the outer wall of the end of the gas inlet pipe, the probability that the tail gas enters the position of the sealing gasket can be reduced, and therefore the influence of the tail gas on the sealing gasket is reduced.

Description

Technical Field

[0001] The utility model relates to the field of dust removal devices, in particular to a tail gas spray dust removal device for polyaluminium chloride production. Background Art

[0002] As the name implies, the dust removal device is a machine or tool used for dust removal. At the same time, in the production of polyaluminium chloride, an exhaust gas emission device is needed to treat the production tail gas. At present, most of the tail gas emission devices used in the production of polyaluminium chloride are equipped with dust removal devices to purify the tail gas and reduce the pollution of tail gas emissions to the environment.

[0003] At present, there are many kinds of dust removal devices for the production of polyaluminium chloride on the market, including spray-type dust removal devices, such as a waste gas emission device for the production of polyaluminium chloride with the publication number of CN219333651U. The waste gas emission device for the production of polyaluminium chloride can spray the waste gas by arranging a water pipe, a water distribution pipe and an atomizing nozzle, can filter the waste gas by arranging an activated carbon filter, can perform secondary filtration of the waste gas by arranging a rotating motor, a centrifugal cylinder and a rotating rod, and can further improve the performance of the fine particles of the waste gas by fully contacting the waste gas with the rotating rod during the rotation process, can irradiate and sterilize the waste gas by arranging an ultraviolet sterilization lamp, can sterilize and deodorize the waste gas by arranging a plasma generator, etc., effectively improving the treatment effect of the waste gas.

[0004] However, the current dust removal devices used in the production of polyaluminium chloride all require the use of tools such as flanges to connect the exhaust pipe and the dust removal device. At the same time, it is also necessary to bolt and install a gasket on the flange at the connection position of the exhaust pipe and the dust removal device to ensure the sealing of the exhaust gas during transmission and prevent exhaust gas leakage. However, the gasket will be worn out after long-term use and needs to be replaced regularly. However, since the connection position of the exhaust pipe and the dust removal device mostly uses a flange connection, multiple sets of bolts need to be tightened during installation and disassembly, making the entire disassembly process time-consuming and laborious. In order to more conveniently replace the gasket of the dust removal device used in the production of polyaluminium chloride, it is urgently needed to improve the existing dust removal device used in the production of polyaluminium chloride. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a tail gas spray dust removal device for polyaluminium chloride production to solve the technical problems mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an exhaust gas spray dust removal device for polyaluminium chloride production, comprising a device body, an exhaust pipe, an intake pipe and a sealing gasket, wherein the sealing gasket is detachably mounted on the outer wall of the end of the intake pipe, and the outer wall of the sealing gasket is designed to be inclined, and the diameter of the contact position between the exhaust pipe and the sealing gasket is smaller than the diameter of the sealing gasket, and the inner wall of the exhaust pipe conflicts with the outer wall of the end of the intake pipe;

[0007] A rotating ring is rotatably mounted on the outer wall of the intake pipe, and a positioning rod is mounted on the outer wall of the rotating ring, and a guide groove corresponding to the positioning rod is opened at the end of the exhaust pipe, and a clamping groove communicating with the guide groove is opened at the end of the exhaust pipe, and when the positioning rod enters the clamping groove, the clamping groove will conflict with the positioning rod;

[0008] A sealing component is also provided on the outside of the device body to increase the sealing effect of the exhaust pipe and the intake pipe;

[0009] A positioning assembly for limiting the positioning rod is also provided on the outside of the device body.

[0010] By adopting the above-mentioned technical scheme, the guide groove, the card slot, the support block and the positioning rod, when the exhaust pipe needs to be installed and removed, it is only necessary to rotate the positioning rod to fix and release the exhaust pipe, making the removal and installation of the exhaust pipe very convenient, and effectively reducing the time consumption when replacing the gasket. At the same time, under the action of the pin, the positioning hole and the slide groove, the positioning rod will be fixed after changing its position, thereby ensuring the fixed position of the positioning rod after movement, ensuring its stability when restricting the exhaust pipe, and under the action of the sealing assembly, further ensuring the sealing between the exhaust pipe and the intake pipe, further improving the safety of the main body of the device when in use, and at the same time, the inner wall of the exhaust pipe conflicts with the outer wall of the end of the intake pipe, which will also effectively reduce the probability of exhaust gas entering the gasket position, thereby reducing the impact of exhaust gas on the gasket.

[0011] The utility model is further configured that a plurality of positioning rods are installed at equal angles on the outer wall of the rotating ring, and after the positioning rods enter the slots, the ends of the positioning rods protrude from the slots.

[0012] By adopting the above technical solution, the fixity of the position of the exhaust pipe after installation is further ensured.

[0013] The utility model is further configured that the outer wall of the connecting position of the guide groove and the clamping groove is designed as a slope, and the edge corners of the outer wall of the positioning rod are designed as arc-shaped rounded corners.

[0014] By adopting the above technical solution, under the action of the guide groove and the positioning rod, it is ensured that the inner wall of the exhaust pipe will squeeze the sealing gasket.

[0015] The utility model is further configured such that the sealing assembly consists of a protective shell and a positioning ring, the protective shell is fixedly mounted on the outer wall of the device body, the inner wall of the protective shell is in contact with the outer wall of the exhaust pipe, and the end of the exhaust pipe is in contact with the outer wall of the device body.

[0016] By adopting the above technical solution, the probability of leakage in the exhaust pipe is further reduced, making the device safer when in use.

[0017] The utility model is further configured such that the positioning ring is installed on the outer wall of the intake pipe, and the positioning ring conflicts with the end of the sealing gasket, and after the exhaust pipe is installed, the inside of the exhaust pipe conflicts with the outer wall of the positioning ring.

[0018] By adopting the above technical solution, the risk of air leakage in the exhaust pipe is reduced and the time consumption for installing the sealing gasket is reduced.

[0019] The utility model is further configured such that the positioning assembly consists of a slide groove, a positioning hole, a latch and a support block, the latch is slidably installed on the outer wall of the positioning rod, and the outer wall of the protective shell is provided with a slide groove for the movement of the latch, and positioning holes corresponding to the latch are provided at both ends of the slide groove, and the depth of the positioning hole is greater than the depth of the slide groove.

[0020] By adopting the above technical solution, under the action of the latch and the positioning hole, the angle of the positioning rod after rotation cannot be changed, thereby ensuring the fixity of the positioning rod when it is stationary.

[0021] The utility model is further configured such that the cross-section of the end of the pin is designed in a "cross" shape, and the other end of the pin is designed as a circular ring, and an installation groove corresponding to the pin is opened in the positioning rod, and after the end of the pin slides out of the positioning hole and enters the sliding groove, the middle part of the pin will conflict with the inner wall of the installation groove.

[0022] By adopting the above technical solution, the pin can be effectively prevented from being completely pulled out of the installation slot due to the characteristics of the shapes of the two ends of the pin.

[0023] The utility model is further configured such that a plurality of support blocks are installed at equal angles on the outer wall of the device body, and the two ends of the support blocks are respectively connected to the outer wall of the air intake pipe and the inner wall of the protective shell, and after the exhaust pipe is installed, the support blocks will conflict with the inner wall of the guide groove.

[0024] By adopting the above technical solution, the angle of the exhaust pipe cannot be changed after installation.

[0025] In summary, the utility model mainly has the following beneficial effects:

[0026] The utility model is provided with a guide groove, a card slot, a support block and a positioning rod, so that when the exhaust pipe needs to be installed and disassembled, the exhaust pipe can be fixed and released by rotating the positioning rod, which makes the disassembly and installation of the exhaust pipe very convenient and effectively reduces the time consumed in replacing the gasket. At the same time, under the action of the latch, the positioning hole and the slide groove, the positioning rod will be fixed after changing its position, thereby ensuring the fixed position of the positioning rod after movement, ensuring its stability when restricting the exhaust pipe, and under the action of the sealing assembly, further ensuring the sealing between the exhaust pipe and the intake pipe, further improving the safety of the main body of the device when in use, and at the same time, the inner wall of the exhaust pipe conflicts with the outer wall of the end of the intake pipe, which will also effectively reduce the probability of exhaust gas entering the sealing gasket position, thereby reducing the influence of exhaust gas on the sealing gasket. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the utility model;

[0028] Figure 2 It is a schematic diagram of the three-dimensional structure of the device body of the utility model after partial cross-section and enlargement;

[0029] Figure 3 For the utility model Figure 2 Exploded view of parts;

[0030] Figure 4 For this utility model Figure 2 A schematic diagram of the three-dimensional structure of the exhaust pipe after partial cutaway in the state;

[0031] Figure 5 For this utility model Figure 2 Schematic diagram of the three-dimensional structure after cutting;

[0032] Figure 6 For this utility model Figure 2 Schematic diagram of the three-dimensional structure after the exhaust pipe is removed;

[0033] Figure 7 It is a schematic diagram of the three-dimensional structure of the protective shell in the utility model.

[0034] In the figure: 1. device body; 2. exhaust pipe; 3. intake pipe; 4. sealing gasket; 5. rotating ring; 6. positioning rod; 7. guide groove; 8. card slot; 9. protective shell; 10. slide groove; 11. positioning hole; 12. latch pin; 121. installation groove; 13. positioning ring; 14. support block. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0036] The following describes an embodiment of the utility model based on its overall structure.

[0037] A tail gas spray dust removal device for polyaluminium chloride production, such as Figure 1 - Figure 7 As shown, the device comprises a main body 1, an exhaust pipe 2, an intake pipe 3 and a sealing gasket 4, wherein the sealing gasket 4 is bolted to the outer wall of the end of the intake pipe 3, and the top of the bolt is located in the sealing gasket 4, ensuring that the inner wall of the exhaust pipe 2 will not contact the bolt when squeezing the sealing gasket 4 later, and the diameter of the inner wall of the exhaust pipe 2 at the contact position with the sealing gasket 4 is smaller than the diameter of the sealing gasket 4, so that in the process of sleeve-mounting the exhaust pipe 2 on the outer wall of the intake pipe 3, the exhaust pipe 2 will squeeze the outer wall of the sealing gasket 4, so that the sealing effect between the exhaust pipe 2 and the intake pipe 3 is improved, ensuring the sealing performance, and at the same time, because the outer wall of the sealing gasket 4 is designed as a slope, the exhaust pipe 2 can be sleeved on the outer wall of the intake pipe 3 more conveniently;

[0038] In this embodiment, a rotating ring 5 is further rotatably installed on the outer wall of the intake pipe 3, and a positioning rod 6 is installed on the outer wall of the rotating ring 5. By pushing the positioning rod 6, it is rotated under the restriction of the rotating ring 5, and a guide groove 7 corresponding to the positioning rod 6 is opened at the end of the exhaust pipe 2, so that when the exhaust pipe 2 is installed, the guide groove 7 at its end will correspond to the positioning rod 6. As the exhaust pipe 2 approaches the outer wall of the device body 1, the positioning rod 6 will gradually enter the guide groove 7. Because a clamping groove 8 communicating with the guide groove 7 is opened at the end of the exhaust pipe 2, when the exhaust pipe 2 is pushed to a suitable position, that is, The positioning rod 6 can be rotated so that the positioning rod 6 enters the slot 8, but the inner wall of the slot 8 conflicts with the outer wall of the positioning rod 6. At this time, the positioning rod 6 will cooperate with the slot 8 to limit the position of the exhaust pipe 2, thereby ensuring the fixity of its position after installation. When the exhaust pipe 2 needs to be disassembled, the positioning rod 6 can be rotated in the opposite direction to make the positioning rod 6 enter the guide groove 7, so that the restriction imposed by the positioning rod 6 on the exhaust pipe 2 is released, and the exhaust pipe 2 can be removed by pulling it outward to disassemble the sealing gasket 4, which makes the disassembly of the sealing gasket 4 more time-saving and labor-saving, and makes the main body 1 of the device more convenient to use.

[0039] See also Figure 2 - Figure 4A plurality of positioning rods 6 are installed at equal angles on the outer wall of the rotating ring 5, so that the exhaust pipe 2 will be restricted by the plurality of positioning rods 6, thereby further ensuring the fixed position of the exhaust pipe 2 after installation. Because the length of the positioning rod 6 is greater than the thickness of the end of the exhaust pipe 2, after the positioning rod 6 enters the slot 8, the end of the positioning rod 6 will protrude from the slot 8, thereby making it convenient for the user to rotate the positioning rod 6, and further making it convenient for the user to release the restriction imposed on the exhaust pipe 2 by the positioning rod 6.

[0040] See also Figure 3 and Figure 6 The outer wall of the connecting position of the guide groove 7 and the card slot 8 is designed with a slope, so that after the positioning rod 6 enters the guide groove 7 and starts to rotate, the positioning rod 6 at this time will squeeze the slope of the guide groove 7, forcing the exhaust pipe 2 to start sliding toward the device body 1 under the action of the guide groove 7 and the positioning rod 6, thereby ensuring that the inner wall of the exhaust pipe 2 will squeeze the sealing gasket 4, and the outer wall corners of the positioning rod 6 are designed with arc-shaped rounded corners, so that the positioning rod 6 can easily enter the card slot 8.

[0041] See also Figure 1 - Figure 7 A sealing component is also provided on the outside of the device body 1 for increasing the sealing effect of the exhaust pipe 2 and the intake pipe 3. The sealing component is composed of a protective shell 9 and a positioning ring 13. The protective shell 9 is fixedly installed on the outer wall of the device body 1. The protective shell 9 is designed as an annular plate, and the inner wall of the protective shell 9 is in contact with the outer wall of the exhaust pipe 2, so as to reduce the probability of the air inside the exhaust pipe 2 and the external air flowing, further improve the sealing of the exhaust pipe 2, and after the exhaust pipe 2 is installed and fixed, its end will conflict with the outer wall of the device body 1, further preventing the gas in the exhaust pipe 2 from flowing out, further reducing the exhaust The probability of leakage in the air pipe 2 is reduced. At the same time, the positioning ring 13 is fixedly installed on the outer wall of the intake pipe 3, and the positioning ring 13 conflicts with the end of the sealing gasket 4. When installing the sealing gasket 4, you only need to push it to the state of conflicting with the outer wall of the positioning ring 13. At this time, the sealing gasket 4 moves to its installation position, making it easier to determine the position of the sealing gasket 4 during installation, reducing the time spent in installing the sealing gasket 4, and when the exhaust pipe 2 is installed, the inside of the exhaust pipe 2 will conflict with the outer wall of the positioning ring 13, so that the connection between the exhaust pipe 2 and the intake pipe 3 is further sealed at this time, further reducing the risk of leakage.

[0042] See also Figure 3 - Figure 7, a positioning assembly for limiting the positioning rod 6 is also provided on the outside of the device body 1, and the positioning assembly consists of a slide groove 10, a positioning hole 11, a latch 12 and a support block 14, wherein the latch 12 is slidably installed on the outer wall of the positioning rod 6, and a slide groove 10 for the movement of the latch 12 is opened on the outer wall of the protective shell 9. When the positioning rod 6 rotates, it will drive the latch 12 to rotate, so that the latch 12 slides in the slide groove 10, and the slide groove 10 will limit the latch 12, so that its sliding angle is limited, and positioning holes 11 corresponding to the latch 12 are opened at both ends of the slide groove 10, and the depth of the positioning hole 11 is greater than the depth of the slide groove 10, so that after the rotation of the positioning rod 6 stops, the latch 12 can be inserted into the positioning hole 11, so that the latch 12 cannot slide in an arc, and then the angle of the positioning rod 6 cannot be changed, ensuring the fixity of its angle when the exhaust pipe 2 is fixed, and the fixity of the angle of the positioning rod 6 after the exhaust pipe 2 is removed.

[0043] See also Figure 3 - Figure 7 , and the end of the latch 12 is designed as a circular ring, so that when the user needs to change the position of the latch 12, the user can adjust the position of the latch 12 by pulling the circular ring at its end, thereby facilitating the removal of the restriction imposed on the positioning rod 6 by the latch 12, and because the positioning rod 6 is provided with a mounting groove 121 corresponding to the latch 12, and because the cross-section of the other end of the latch 12 is designed in a "cross" shape, after the end of the latch 12 slides out of the positioning hole 11 and enters the slide groove 10, the middle part of the latch 12 will conflict with the inner wall of the mounting groove 121, so that the latch 12 can no longer slide into the mounting groove 121, thereby preventing the latch 12 from being completely pulled out of the mounting groove 121, and at the same time, the end corners of the latch 12 are designed with bevel angles, which effectively reduces the difficulty of the latch 12 entering the positioning hole 11.

[0044] See also Figure 2 , Figure 3 , Figure 6 and Figure 7 There are multiple support blocks 14 installed at equal angles on the outer wall of the device body 1, and the two ends of the support blocks 14 are respectively connected to the outer wall of the intake pipe 3 and the inner wall of the protective shell 9, so that the support blocks 14 can support and limit the inner wall of the protective shell 9, reducing the probability of the end of the protective shell 9 opening outward. At the same time, the installation position of the support block 14 corresponds to the opening position of the guide groove 7, so that after the exhaust pipe 2 is installed, the support block 14 will enter the guide groove 7, so that the outer wall of the support block 14 conflicts with the inner wall of the guide groove 7, so that the angle of the exhaust pipe 2 after installation cannot be changed, thereby further ensuring the fixity of the exhaust pipe 2 after installation.

[0045] The working principle of the utility model is as follows: when using the device, the device body 1 is started, so that the exhaust gas begins to enter the device body 1 through the exhaust pipe 2 and the intake pipe 3, and the device body 1 at this time removes dust and purifies the exhaust gas;

[0046] When it is necessary to remove the exhaust pipe 2 to replace the gasket 4, first pull the latch 12 outward so that its end enters the slide groove 10. At this time, the restriction of the positioning rod 6 is released. Then, rotate the positioning rod 6 to separate it from the card slot 8. Then, insert the latch 12 into the positioning hole 11 so that the position of the positioning rod 6 is restricted. At this time, the restriction of the exhaust pipe 2 by the positioning rod 6 is released. The exhaust pipe 2 can be pulled outward to make the gasket 4 leak out. Then, the bolts can be removed to replace the gasket 4.

[0047] When it is necessary to install the sealing gasket 4, it is sleeved on the end of the intake pipe 3 until the end of the sealing gasket 4 conflicts with the outer wall of the positioning ring 13. At this time, the sealing gasket 4 can be fixed, and then the exhaust pipe 2 is pushed toward the intake pipe 3, so that the exhaust pipe 2 squeezes the sealing gasket 4. At the same time, the end of the exhaust pipe 2 will enter the protective shell 9, and in this process, the positioning rod 6 and the support block 14 will gradually enter the guide groove 7, and then the positioning rod 6 can be rotated. At this time, the support block 14 conflicts with the guide groove 7, so that the exhaust pipe 2 cannot change its angle, and then the positioning rod 6 will force the exhaust pipe 2 to slide toward the outer wall of the device body 1 when it is rotated. When the positioning rod 6 enters the card slot 8 and conflicts with the card slot 8, the safety of the exhaust pipe 2 is completed. At the same time, the outer end of the exhaust pipe 2 will conflict with the inner wall of the device body 1, and the inner wall of the exhaust pipe 2 will conflict with the end of the intake pipe 3 and the outer wall of the positioning ring 13 respectively, effectively increasing the sealing of the exhaust pipe 2 and ensuring the safety of the device body 1 when in use.

[0048] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A tail gas spray dust removal device for polyaluminium chloride production, comprising a device body (1), an exhaust pipe (2), an air intake pipe (3) and a sealing gasket (4), characterized in that: The sealing gasket (4) is detachably mounted on the outer wall of the end of the intake pipe (3), and the outer wall of the sealing gasket (4) is designed to be inclined, and the diameter of the contact position between the exhaust pipe (2) and the sealing gasket (4) is smaller than the diameter of the sealing gasket (4), and the inner wall of the exhaust pipe (2) and the outer wall of the end of the intake pipe (3) are in conflict; A rotating ring (5) is rotatably mounted on the outer wall of the intake pipe (3), and a positioning rod (6) is mounted on the outer wall of the rotating ring (5); a guide groove (7) corresponding to the positioning rod (6) is provided at the end of the exhaust pipe (2); a clamping groove (8) communicating with the guide groove (7) is provided at the end of the exhaust pipe (2); and when the positioning rod (6) enters the clamping groove (8), the clamping groove (8) will conflict with the positioning rod (6); A sealing component for increasing the sealing effect of the exhaust pipe (2) and the intake pipe (3) is also provided on the outside of the device body (1); A positioning assembly for limiting the positioning rod (6) is also provided on the outside of the device body (1).

2. The tail gas spray dust removal device for polyaluminium chloride production according to claim 1, characterized in that: A plurality of positioning rods (6) are installed at equal angles on the outer wall of the rotating ring (5), and after the positioning rods (6) enter the clamping grooves (8), the ends of the positioning rods (6) protrude out of the clamping grooves (8).

3. The tail gas spray dust removal device for polyaluminium chloride production according to claim 1, characterized in that: The outer wall of the connecting position between the guide groove (7) and the clamping groove (8) is designed as a slope, and the edge corners of the outer wall of the positioning rod (6) are designed as arc-shaped rounded corners.

4. The tail gas spray dust removal device for polyaluminium chloride production according to claim 1, characterized in that: The sealing assembly is composed of a protective shell (9) and a positioning ring (13); the protective shell (9) is fixedly mounted on the outer wall of the device body (1), the inner wall of the protective shell (9) is in contact with the outer wall of the exhaust pipe (2), and the end of the exhaust pipe (2) is in contact with the outer wall of the device body (1).

5. A tail gas spray dust removal device for polyaluminium chloride production according to claim 4, characterized in that: The positioning ring (13) is installed on the outer wall of the intake pipe (3), and the positioning ring (13) contacts the end of the sealing gasket (4); and after the exhaust pipe (2) is installed, the inside of the exhaust pipe (2) contacts the outer wall of the positioning ring (13).

6. A tail gas spray dust removal device for polyaluminium chloride production according to claim 5, characterized in that: The positioning assembly is composed of a slide groove (10), a positioning hole (11), a latch (12) and a support block (14); the latch (12) is slidably mounted on the outer wall of the positioning rod (6); the outer wall of the protective shell (9) is provided with a slide groove (10) for the latch (12) to move; and positioning holes (11) corresponding to the latch (12) are provided at both ends of the slide groove (10); the depth of the positioning hole (11) is greater than the depth of the slide groove (10).

7. A tail gas spray dust removal device for polyaluminium chloride production according to claim 6, characterized in that: The cross section of the end of the latch pin (12) is designed in a "cross" shape, and the other end of the latch pin (12) is designed in a circular ring. A mounting groove (121) corresponding to the latch pin (12) is provided in the positioning rod (6). After the end of the latch pin (12) slides out of the positioning hole (11) and enters the slide groove (10), the middle of the latch pin (12) will conflict with the inner wall of the mounting groove (121).

8. The tail gas spray dust removal device for polyaluminium chloride production according to claim 7, characterized in that: A plurality of support blocks (14) are installed at equal angles on the outer wall of the device body (1), and the two ends of the support blocks (14) are respectively connected to the outer wall of the air inlet pipe (3) and the inner wall of the protective shell (9), and after the exhaust pipe (2) is installed, the support blocks (14) will conflict with the inner wall of the guide groove (7).

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