A compound material production tail gas treatment device

Abstract

The present invention discloses a compound material production tail gas treatment device, comprising a tower body, wherein an inner shaft is coaxially arranged in the tower body, a first spiral sheet and a second spiral sheet are arranged outside the inner shaft, the first spiral sheet and the second spiral sheet are arranged up and down and connected together, the interior of the second spiral sheet is hollow, and air outlet holes are evenly distributed on the upper surface, an air outlet groove is arranged near the lower position of the outer wall of the inner shaft, and the air outlet groove corresponds to the internal space of the second spiral sheet, a lower baffle is arranged at the bottom of the inner shaft, and an air inlet groove is arranged on the outer wall of the inner shaft below the lower baffle; the device can allow activated carbon particles to adsorb particulate matter more evenly, thereby extending the maintenance cycle.

Description

Technical Field

[0001] The invention relates to a compound material production tail gas treatment device. Background Art

[0002] Exhaust gas is generated during the production of compound materials. The exhaust gas contains a large amount of harmful substances, including particulate matter and gas. The particulate matter is mainly adsorbed by activated carbon particles, while the exhaust gas is chemically decomposed by equipment such as spray towers.

[0003] In practical applications, an adsorption tower is mainly used to adsorb particulate matter. The adsorption tower in the prior art has multiple layers, and activated carbon particles are piled on the surface of each layer. The exhaust gas enters from the bottom of the adsorption tower, and then penetrates the activated carbon particles layer by layer upward, and is then discharged from the top of the adsorption tower and transported to the spray tower.

[0004] In this process, we found that the activated carbon particles were stacked in a fixed position, so the activated carbon particles in the lower layer were first saturated with adsorption, and the lower surface was saturated, which ultimately led to insufficient passage rate of the activated carbon particles in the bottom layer, requiring frequent manual cleaning.

[0005] Based on the above problems, we designed a compound material production exhaust gas treatment device that can make activated carbon particles adsorb particulate matter more evenly and extend the maintenance cycle. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a compound material production tail gas treatment device which can allow activated carbon particles to adsorb particulate matter more evenly and extend the maintenance cycle.

[0007] To solve the above problems, the present invention adopts the following technical solutions:

[0008] A compound material production tail gas treatment device comprises a tower body, wherein an inner shaft is coaxially arranged in the tower body, a first spiral sheet and a second spiral sheet are arranged outside the inner shaft, the first spiral sheet and the second spiral sheet are arranged up and down and connected together, the interior of the second spiral sheet is hollow, and air outlet holes are evenly distributed on the upper surface, an air outlet groove is arranged near the lower position of the outer wall of the inner shaft, and the air outlet groove corresponds to the inner space of the second spiral sheet, a lower baffle is arranged at the bottom of the inner shaft, an air inlet groove is arranged on the outer wall of the inner shaft below the lower baffle, a connecting shaft is arranged at the bottom axis of the inner shaft, and a connecting shaft is arranged at the bottom axis of the tower body. Externally, an air intake pipe is arranged below the lower baffle, an air intake valve is installed on the air intake pipe, a bracket is arranged below the tower body, a reducer is installed through the bracket, the output end of the reducer is connected to the connecting shaft, a driving motor is installed at the input end of the reducer, a discharge pipe is arranged near the top of the outer wall of the tower body, a pipe cover is detachably arranged at the mouth of the discharge pipe, a mesh cover is arranged near the upper part of the outer wall of the inner shaft, the mesh cover is located above the discharge pipe, an outlet pipe is arranged at the top of the tower body, and the exhaust gas passing through the mesh cover is discharged via the outlet pipe; activated carbon particles are filled between the inner shaft and the tower body.

[0009] Preferably, a water inlet pipe is provided at a position near the top of the outer wall of the tower body, and a water inlet valve is installed on the water inlet pipe, the water inlet pipe is located above the mesh cover, and a mesh plate is provided on the outer wall of the inner shaft and below the second spiral sheet, and the mesh plate is located above the lower baffle plate, and a main drain pipe is provided on the outside of the tower body, the main drain pipe is connected with a first drain pipe and a second drain pipe, the first drain pipe is connected to the tower body and is located between the lower baffle plate and the mesh plate, water that permeates the activated carbon particles passes through the mesh plate and is discharged from the first drain pipe, the second drain pipe is connected to the bottom of the tower body, water that penetrates into the second spiral sheet from the air outlet flows out through the air inlet groove, and is discharged into the main drain pipe from the second drain pipe, one end of the main drain pipe is closed, and a drain valve is installed at the other end.

[0010] Preferably, a convex ring is provided at the axis center of the inner bottom of the tower body, and the connecting shaft passes through the axis center of the convex ring.

[0011] Preferably, a one-way valve is installed on the second drainage pipe, and the one-way valve drains water in one direction downward.

[0012] Preferably, an annular water trough is provided at the inner bottom of the tower body, and the second drain pipe is connected to the bottom of the water trough.

[0013] Preferably, a cleaning pipe is provided on the outer wall of the tower body, below the second spiral sheet and above the mesh plate, obliquely downwardly, and a first pipe cover is detachably provided at the pipe opening of the cleaning pipe.

[0014] Preferably, the mesh cover is conical, and the diameter of the mesh cover gradually decreases downward.

[0015] Preferably, the length ratio of the first spiral sheet to the second spiral sheet is 1:N, where N is greater than 2.

[0016] Preferably, a shaft cover is provided at the upper end of the inner shaft, a cooling hood is provided at the bottom of the shaft cover, the diameter of the cooling hood gradually decreases downward, a conduit is provided at the upper end of the shaft cover, the conduit passes through the tower body upward, the conduit is rotatably connected to the tower body, the conduit is communicated with the cooling hood, an upper water tank is provided above the tower body, the upper water tank and the conduit are rotatably connected, a circulating water outlet pipe is provided at the outer wall of the upper water tank, a circulating water inlet pipe is inserted downwardly through the axis of the upper water tank, a first water inlet valve is provided at the upper end of the circulating water inlet pipe, the lower end of the circulating water inlet pipe passes downward through the conduit and is inserted into the cooling hood; a first bracket is provided between the upper water tank and the tower body.

[0017] The beneficial effects of the present invention are:

[0018] Advantage 1: When the device adsorbs exhaust gas, the inner shaft is kept rotating slowly, which can change the position where the activated carbon particles contact the exhaust gas, so that the activated carbon particles can adsorb particulate matter in the exhaust gas more evenly, thereby extending the maintenance cycle of the equipment.

[0019] The second advantage is that when the activated carbon particles reach the end of their service life, the activated carbon particles can be discharged through the rapid rotation of the inner shaft, making replacement convenient. When replacing the activated carbon particles, they can be poured in from the discharge pipe.

[0020] Advantage three: the device can wash the activated carbon particles with water to remove the particles adsorbed by the activated carbon particles, thereby extending the overall service life of the activated carbon particles by more than 30%.

[0021] Advantage four: This device allows the exhaust gas to evenly enter the spiral channel constructed by the second spiral blade through the air outlet holes arranged on the surface of the second spiral blade, so that the exhaust gas is evenly distributed, the activated carbon particles can be absorbed more evenly, and the dirty speed of the activated carbon particles can be as synchronized as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the interior of the present invention after removing the activated carbon particles;

[0025] Figure 3 It is the lower schematic diagram of the present invention;

[0026] Figure 4 for Figure 3 A magnified view at point A;

[0027] Figure 5 It is the upper schematic diagram of the present invention;

[0028] Figure 6 It is the structural diagram of the inner axis;

[0029] Figure 7 It is a partial cross-sectional view of the inner shaft;

[0030] Figure 8 is a top view of the lower baffle;

[0031] Fig. 9 It is the structural diagram of the stencil;

[0032] Fig.10 This is a structural diagram of the cooling hood. DETAILED DESCRIPTION

[0033] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0034] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0035] In the description of the present invention, it is necessary to understand that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] In addition, in the description of the present invention, “plurality” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "disposed", "socketed", "connected", "through", "plugged" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] See also Figures 1 to 8As shown, it includes a tower body 1, an inner shaft 2 is coaxially arranged in the tower body 1, a first spiral sheet 21 and a second spiral sheet 22 are arranged outside the inner shaft 2, the first spiral sheet 21 and the second spiral sheet 22 are arranged up and down, and are connected together, the interior of the second spiral sheet 22 is hollow, and the upper surface is evenly distributed with air outlet holes 23, the outer wall of the inner shaft 2 is provided with an air outlet groove 24 near the lower position, the air outlet groove 24 corresponds to the inner space of the second spiral sheet 22, a lower baffle 25 is provided at the bottom of the inner shaft 2, the outer wall of the inner shaft 2 is provided with an air inlet groove 26 below the lower baffle 25, a connecting shaft 27 is provided at the bottom axis of the inner shaft 2, a bearing and a shaft seal are matched between the connecting shaft 27 and the tower body 1, and the shaft seal is sealed above the bearing to improve the sealing To prevent air leakage, an air inlet pipe 3 is arranged outside the tower body 1, corresponding to the lower part of the lower baffle 25, and an air inlet valve 31 is installed on the air inlet pipe 3. A bracket 4 is arranged below the tower body 1, and a reducer 5 is installed through the bracket 4. The output end of the reducer 5 is connected to the connecting shaft 27, and the input end of the reducer 5 is installed with a driving motor 51. A discharge pipe 6 is arranged near the top of the outer wall of the tower body 1, and a pipe cover 61 is detachably arranged at the pipe mouth of the discharge pipe 6. A mesh cover 28 is arranged near the upper part of the outer wall of the inner shaft 2, and the mesh cover 28 is located above the discharge pipe 6. An outlet pipe 7 is arranged at the top of the tower body 1, and the exhaust gas passing through the mesh cover 28 is discharged through the outlet pipe 7; activated carbon particles 8 are filled between the inner shaft 2 and the tower body 1.

[0039] The activated carbon particles 8 are spherical particles to avoid micropores and have good rolling performance. When the first spiral blade 21 and the second spiral blade 22 are in sufficient rotation, the activated carbon particles 8 roll downward, completing the position adjustment of the activated carbon particles 8 while avoiding being lifted upward.

[0040] When the activated carbon particles 8 need to be replaced, the rotation speed of the first spiral sheet 21 and the second spiral sheet 22 can be increased to complete the replacement.

[0041] The treatment method for tail gas through the above technical solution is as follows:

[0042] The exhaust gas enters the tower body 1 through the air inlet pipe 3, and the entry position is located below the lower baffle 25. After the exhaust gas enters, it enters the inner shaft 2 from the air inlet groove 26 at the lower part of the inner shaft 2, and is input to the second spiral blade 22 from the air outlet groove 24, and is discharged from the air outlet 23 on the surface of the second spiral blade 22. The exhausted exhaust gas contacts the activated carbon particles 8, and moves upward along the spiral channel constructed by the first spiral blade 21 and the second spiral blade 22, and finally penetrates the mesh cover 28 upward and is discharged from the air outlet pipe 7.

[0043] In the above process, the torque is output by the driving motor 51, and the transmission ratio is reduced by the reducer 5 to drive the connecting shaft 27 to rotate. The connecting shaft 27 is fixed to the inner shaft 2 and is coaxial. In the above purification process, the rotation speed of the inner shaft 2 is controlled at 2 to 4 rpm. When the inner shaft 2 is at this speed, the rotation of the first spiral blade 21 and the second spiral blade 22 is not enough to lift the activated carbon particles 8. Under the rotation of the first spiral blade 21 and the second spiral blade 22, the position of the activated carbon particles 8 changes, and the contact surface with the exhaust gas changes.

[0044] When the adsorption capacity of the activated carbon particles 8 is insufficient, open the tube cover 61 and increase the rotation speed of the inner shaft 2 to more than 20 rpm. At this rotation speed, the first spiral blade 21 and the second spiral blade 22 lift the activated carbon particles 8 in the tower body 1 and discharge the activated carbon particles 8 from the discharge pipe 6. As the cleaning progresses, the rotation speed of the inner shaft 2 is gradually increased, so that the activated carbon particles 8 in the tower body 1 are effectively taken out.

[0045] See also Figure 3 , Figure 4 , Figure 5 , Figure 7 and Fig. 9 As shown, a water inlet pipe 9 is provided at a position near the top of the outer wall of the tower body 1, and a water inlet valve 91 is installed on the water inlet pipe 9. The water inlet pipe 9 is located above the mesh cover 28. A mesh plate 29 is provided on the outer wall of the inner shaft 2 and below the second spiral sheet 22. The mesh plate 29 is located above the lower baffle plate 25. A main drain pipe 10 is provided outside the tower body 1. The main drain pipe 10 is connected to a first drain pipe 11 and a second drain pipe 12. The first drain pipe 11 is connected to the tower body 1 and is located between the lower baffle plate 25 and the mesh plate 29. Water that permeates the activated carbon particles 8 passes through the mesh plate 29 and is discharged from the first drain pipe 11. The second drain pipe 12 is connected to the bottom of the tower body 1. Water that penetrates into the second spiral sheet 22 from the air outlet 23 flows out through the air inlet groove 26 and is discharged into the main drain pipe 10 from the second drain pipe 12. One end of the main drain pipe 10 is closed, and a drain valve 13 is installed at the other end.

[0046] The above technical solution provides the following technical effects:

[0047] When water is introduced through the water inlet pipe 9, it is necessary to keep the air inlet valve 31 closed and keep the drain valve 13 open. The water is dispersed through the mesh cover 28 and then penetrates downward, and gradually penetrates along the spiral channel constructed by the first spiral sheet 21 and the second spiral sheet 22 to complete the cleaning of the activated carbon particles 8. The surface of the activated carbon particles 8 is cleaned to remove the adhered particles. The drain valve 13 can also be closed at this time, so that the water for cleaning the activated carbon particles accumulates in the tower body 1, and the activated carbon particles 8 are immersed and cleaned. During the cleaning process, the inner shaft 2 is kept rotating, and the speed is controlled at 2 to 4 rpm, so that the activated carbon particles 8 rub against each other, and the cleaned water is discharged from the drain valve 13.

[0048] After the above cleaning is completed, the hot air is connected to the equipment providing hot air through the air inlet pipe 3, and the hot air enters the tower body 1 through the air inlet pipe 3 to dry the activated carbon particles 8. The activated carbon particles 8 can continue to be used after drying.

[0049] Therefore, a three-way valve can be installed at the pipe mouth of the intake pipe 3, one passage of the three-way valve is used to connect the exhaust gas, and the other passage is used to connect the hot gas, so as to flexibly perform selective switching.

[0050] See also Figure 4 As shown, a convex ring 121 is provided at the axis center of the inner bottom of the tower body 1 , and the connecting shaft 27 passes through the axis center of the convex ring 121 .

[0051] The convex ring 121 is provided to reduce water ingress at the matching position between the connecting shaft 27 and the tower body 1 .

[0052] See also Figure 3 As shown, a one-way valve 141 is installed on the second drainage pipe 12, and the one-way valve 141 drains water in one direction downward.

[0053] The one-way valve 141 is used to prevent water from flowing back into the tower body 1 from the second drainage pipe 12 when the first drainage pipe 11 is draining water at a high speed.

[0054] See also Figure 4 As shown, an annular water tank 131 is provided at the inner bottom of the tower body 1 , and the second drain pipe 12 is connected to the bottom of the water tank 131 .

[0055] The water tank 131 plays a role in collecting water. When water flows out from the air inlet tank, it is collected in the water tank 131 and then discharged downward through the second drainage pipe 12 to avoid water accumulation inside the tower body 1.

[0056] See also Figure 3As shown, a cleaning pipe 14 is provided on the outer wall of the tower body 1 below the second spiral sheet 22 and above the mesh plate 29 slanting downward, and a first pipe cover 1555 is detachably provided at the pipe opening of the cleaning pipe 14 .

[0057] The cleaning tube 14 is used to clean the residual activated carbon particles 8 .

[0058] See also Figure 5 As shown, the mesh cover 28 is conical, and the diameter of the mesh cover 28 gradually decreases downward.

[0059] The mesh cover 28 is designed to be conical. When the first spiral blade 21 lifts the activated carbon particles upward, the activated carbon particles 8 can be discharged from the discharge pipe 6 more smoothly after being blocked by the mesh cover 28.

[0060] The length ratio of the first spiral sheet 21 to the second spiral sheet 22 is 1:N, where N is greater than 2.

[0061] See also Figure 5 , Figure 6 and Fig.10 As shown, a shaft cover 15 is provided at the upper end of the inner shaft 2, a cooling hood 16 is provided at the bottom of the shaft cover 15, the diameter of the cooling hood 16 gradually decreases downward, a conduit 17 is provided at the upper end of the shaft cover 15, the conduit 17 passes through the tower body 1 upward, the conduit 17 is rotatably connected to the tower body 1, a bearing and a shaft seal are matched between the conduit 17 and the tower body 1, the shaft seal is sealed below the bearing, this technical solution can avoid air leakage, the conduit 17 is communicated with the cooling hood 16, an upper water tank 18 is provided above the tower body 1, and the upper water tank 18 is connected to the tower body 1. The conduits 17 are rotatably connected, and bearings and shaft seals are provided between the conduits 17 and the upper water tank 18. The shaft seal is sealed above the bearing. This technical means is mainly to avoid water leakage. A circulating water outlet pipe 19 is provided at the outer wall of the upper water tank 18, and a circulating water inlet pipe 20 is inserted downwardly through the axis of the upper water tank 18. A first water inlet valve 2221 is provided at the upper end of the circulating water inlet pipe 20, and the lower end of the circulating water inlet pipe 20 passes downward through the conduit 17 and is inserted into the cooling cover 16; a first bracket 2222 is provided between the upper water tank 18 and the tower body 1.

[0062] Part of the tail gas generated during the chemical production process is in a high-temperature state. Therefore, after the high-temperature tail gas enters the inner shaft 2 through the cooling cover 16 , the tail gas is cooled by contacting the cooling cover 16 .

[0063] By inserting the circulating water inlet pipe 20, the circulating water can directly reach the interior of the cooling cover 16, take away the circulating water that has completed the heat exchange, ensure that the cooling cover 16 is in a low temperature state, and achieve effective heat exchange and cooling of the exhaust gas.

[0064] The upper end of the circulating water inlet pipe 20 needs to be connected to a water pump, and high-speed water flow is used for flushing to increase the circulation speed of the water.

[0065] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A compound material production tail gas treatment device, characterized in that: The invention comprises a tower body (1), an inner shaft (2) is coaxially arranged in the tower body (1), a first spiral sheet (21) and a second spiral sheet (22) are arranged outside the inner shaft (2), the first spiral sheet (21) and the second spiral sheet (22) are arranged in an upper and lower position and connected together, the interior of the second spiral sheet (22) is hollow, and air outlet holes (23) are evenly distributed on the upper surface, an air outlet groove (24) is arranged near the lower position of the outer wall of the inner shaft (2), and the air outlet groove (24) corresponds to the internal space of the second spiral sheet (22), a lower baffle plate (25) is arranged at the bottom of the inner shaft (2), and an air inlet groove (26) is arranged on the outer wall of the inner shaft (2) below the lower baffle plate (25). ), a connecting shaft (27) is arranged at the bottom axis of the inner shaft (2), an air intake pipe (3) is arranged outside the tower body (1) and corresponds to the lower part of the lower baffle (25), an air intake valve (31) is installed on the air intake pipe (3), a bracket (4) is arranged below the tower body (1), a reducer (5) is installed through the bracket (4), the output end of the reducer (5) is connected to the connecting shaft (27), the input end of the reducer (5) is installed with a driving motor (51), a discharge pipe (6) is arranged near the top of the outer wall of the tower body (1), a pipe cover (61) is detachably arranged at the pipe mouth of the discharge pipe (6), and a mesh cover (28) is arranged near the upper part of the outer wall of the inner shaft (2), The mesh cover (28) is located above the discharge pipe (6); an air outlet pipe (7) is provided at the top of the tower body (1); and the exhaust gas passing through the mesh cover (28) is discharged through the air outlet pipe (7); activated carbon particles (8) are filled between the inner shaft (2) and the tower body (1); wherein a water inlet pipe (9) is provided at a position close to the top of the outer wall of the tower body (1); a water inlet valve (91) is installed on the water inlet pipe (9); the water inlet pipe (9) is located above the mesh cover (28); a mesh plate (29) is provided on the outer wall of the inner shaft (2) and below the second spiral sheet (22); the mesh plate (29) is located above the lower baffle (25); and a water inlet valve (91) is provided on the outside of the tower body (1). A main drainage pipe (10) is provided, wherein the main drainage pipe (10) is connected to a first drainage pipe (11) and a second drainage pipe (12), wherein the first drainage pipe (11) is connected to the tower body (1) and is located between the lower baffle plate (25) and the mesh plate (29), wherein water that has infiltrated the activated carbon particles (8) passes through the mesh plate (29) and is discharged from the first drainage pipe (11), wherein the second drainage pipe (12) is connected to the bottom of the tower body (1), wherein water that has infiltrated the second spiral sheet (22) from the air outlet (23) flows out through the air inlet groove (26) and is discharged from the second drainage pipe (12) into the main drainage pipe (10), wherein one end of the main drainage pipe (10) is closed and a drainage valve (13) is installed at the other end;The upper end of the inner shaft (2) is provided with a shaft cover (15), the bottom of the shaft cover (15) is provided with a cooling cover (16), the diameter of the cooling cover (16) gradually decreases downwards, the upper end of the shaft cover (15) is provided with a conduit (17), the conduit (17) passes through the tower body (1) upwards, the conduit (17) is rotatably connected to the tower body (1), the conduit (17) is in communication with the cooling cover (16), an upper water tank (18) is provided above the tower body (1), and the upper water tank (18) 18) is rotatably connected to the conduit (17); a circulating water outlet pipe (19) is arranged at the outer wall of the upper water tank (18); a circulating water inlet pipe (20) is inserted downwardly through the axis of the upper water tank (18); a first water inlet valve (2221) is arranged at the upper end of the circulating water inlet pipe (20); the lower end of the circulating water inlet pipe (20) passes downward through the conduit (17) and is inserted into the cooling cover (16); a first bracket (2222) is arranged between the upper water tank (18) and the tower body (1). ; 2. The compound material production tail gas treatment device according to claim 1, characterized in that: A convex ring (121) is provided at the axis center of the inner bottom of the tower body (1), and the connecting shaft (27) passes through the axis center of the convex ring (121).

3. The compound material production tail gas treatment device according to claim 2, characterized in that: A one-way valve (141) is installed on the second drainage pipe (12), and the one-way valve (141) drains water in one direction downward.

4. The compound material production tail gas treatment device according to claim 1, characterized in that: An annular water tank (131) is provided at the inner bottom of the tower body (1), and the second drainage pipe (12) is connected to the bottom of the water tank (131).

5. The compound material production tail gas treatment device according to claim 1, characterized in that: A cleaning pipe (14) is arranged on the outer wall of the tower body (1), below the second spiral sheet (22) and above the mesh plate (29) and tilted downward, and a first pipe cover (1555) is detachably arranged at the pipe mouth of the cleaning pipe (14).

6. The compound material production tail gas treatment device according to claim 1, characterized in that: The mesh cover (28) is conical, and the diameter of the mesh cover (28) gradually decreases downwards.

7. The compound material production tail gas treatment device according to claim 1, characterized in that: The length ratio of the first spiral sheet (21) to the second spiral sheet (22) is 1:N, where N is greater than 2.

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