Waste gas treatment and fiber impurity separation device of non-woven fabric drying oven

Abstract

The invention belongs to the technical field of non-woven fabric drying oven waste gas treatment, and discloses a non-woven fabric drying oven waste gas treatment and fiber impurity separation device which comprises a non-woven fabric drying oven body and further comprises a separation assembly connected to the side portion of the non-woven fabric drying oven body. Water is injected into the top of the gathering plate through the transmission assembly and the water injection assembly and gathers towards the middle to enter the waste gas flowing channel to move downwards, so that the waste gas flowing channel is in a wet state, and fiber impurities make contact with the inner wall of the wet waste gas flowing channel in the flowing process of waste gas in the waste gas flowing channel; the fiber impurities are adsorbed on the inner wall of the waste gas flowing channel under the action of water, then water is injected into the top of the gathering plate through the spraying holes, the water enters the transmission assembly along the waste gas flowing channel and carries the attached fiber impurities to be collected, in the process, it is avoided that normal production is affected by manual filter bag replacement, and the quality of workshop air is guaranteed; meanwhile, the service life of equipment is prolonged.

Description

Technical Field

[0001] The present invention belongs to the technical field of waste gas treatment for non-woven fabric ovens, and specifically relates to a waste gas treatment and fiber impurity separation device for non-woven fabric ovens. Background Art

[0002] A non-woven fabric oven is a device specifically used in the production process of non-woven fabrics, mainly for drying, curing, and shaping non-woven fabrics to ensure that they meet the required physical properties and appearance quality. It achieves uniform treatment through heating and air flow (such as hot air circulation, infrared, or microwave technology) and is widely used in fields such as medical and health, the automotive industry, the construction industry, and household products. The waste gas from non-woven fabric ovens contains fibers. Currently, the fibers in the waste gas from non-woven fabric ovens are usually filtered by means of physical interception, mainly using a multi-stage filtration system including a primary filter, a HEPA high-efficiency filter, and a bag filter. However, after the filter bag of the bag filter accumulates dust, the resistance increases, the energy consumption of the fan increases, and it is necessary to regularly stop the machine to disassemble the filter bag, which is manually cleaned or replaced (the frequency depends on the fiber load), affecting continuous production. At the same time, the high-temperature waste gas environment (such as the exhaust of the oven) may accelerate the aging of the filter bag, increasing the replacement cost (the service life of a PP filter bag is usually only 6 - 12 months). The fibers shed during the cleaning process may cause dust pollution in the workshop, posing certain safety hazards. Therefore, a waste gas treatment and fiber impurity separation device for non-woven fabric ovens is now proposed. Summary of the Invention

[0003] To solve the problems raised in the above background art, the present invention provides a waste gas treatment and fiber impurity separation device for non-woven fabric ovens, which solves the problems that after the filter bag of the existing bag filter accumulates dust, the resistance increases, the energy consumption of the fan increases, and it is necessary to regularly stop the machine to disassemble the filter bag, which is manually cleaned or replaced (the frequency depends on the fiber load), affecting continuous production.

[0004] To achieve the above object, the present invention provides the following technical solution: A waste gas treatment and fiber impurity separation device for non-woven fabric ovens, including a non-woven fabric oven main body, and further including: A separation component, the separation component is connected to the side of the non-woven fabric oven main body; A transmission component, the transmission component is fixedly installed at the bottom of the separation component; A cleaning component, the cleaning component is arranged inside the transmission component; A water injection pipe, the water injection pipe is installed on the transmission component; A water injection component, the water injection component is connected to the transmission component and the separation component, injecting the water in the transmission component into the top of the separation component to make the inside of the separation component in a wet state; Among them, the separation component includes a separation chamber, the separation chamber is communicated with the non-woven fabric oven main body, two spiral vanes are fixedly installed inside the separation chamber, and an exhaust gas flow channel is formed between the two spiral vanes and the separation chamber; The top of the spiral vane is fixedly installed with a converging plate with a concave middle; The water injection component includes an annular pipe fixedly installed at the upper end inside the separation chamber. Spray holes are arranged on the inner circumference of the annular pipe. A connecting pipe is connected to the outside of the annular pipe, and the connecting pipe is communicated with the transmission component.

[0005] Preferably, the transmission component includes a storage tank fixedly installed outside the separation chamber through a connecting frame. A cover plate is installed on the top of the storage tank, and a water storage tank is fixedly installed inside the storage tank; The water storage tank is filled with water. In the initial state, the water level in the water storage tank is flush with the top of the water storage tank; A push ring is movably sleeved inside the water storage tank. A connecting rod is fixedly installed at the bottom of the push ring. A stabilizing frame is fixedly installed at the bottom of the connecting rod. A cylinder is fixedly installed outside the storage tank, and the output end is connected to the stabilizing frame.

[0006] Preferably, the lower end of the separation chamber is funnel-shaped, and the lower end of the separation chamber is located in the water in the water storage tank.

[0007] Preferably, a collection filter screen is fixedly installed between the water storage tank and the storage tank; When the push ring moves upward, the water in the water storage tank is pushed upward to overflow the water storage tank, and the floating fiber impurities enter the storage tank and are intercepted by the collection filter screen.

[0008] Preferably, the transmission component further includes a water through hole opened outside the water storage tank. The water through hole is located at the bottom of the push ring. A valve plate for blocking the water through hole is connected to the side of the water through hole through a rubber connecting piece, and a communication hole is opened outside the rubber connecting piece; The outer diameter of the valve plate is larger than the inner diameter of the water through hole.

[0009] Preferably, when the push ring moves upward, the water in the storage tank enters the lower end inside the water storage tank through the water through hole and the communication hole; When the push ring moves downward, the water at the lower end is extruded and the valve plate blocks the water through hole. The water is injected into the top of the converging plate through the connecting pipe, the annular pipe and the spray holes, and the water moves downward along the exhaust gas flow channel formed by the two spiral vanes, so that the inner wall of the exhaust gas flow channel is in a wet state.

[0010] Preferably, the cleaning component includes a movable rod movably arranged inside the water storage tank. A second docking part is fixedly installed on the push ring. The second docking part is sleeved outside the movable rod. A spiral groove is opened at the lower end of the movable rod; The inner wall of the second docking member is provided with bumps and is movable inside the spiral groove.

[0011] Preferably, a reciprocating spiral groove is formed at the upper end of the movable rod, a funnel ring is movably sleeved at the lower end of the separation chamber, and a first docking member sleeved on the upper end of the movable rod is fixedly installed on the outer part of the funnel ring; The inner wall of the first docking member is provided with bumps and is movable inside the reciprocating spiral groove.

[0012] Preferably, a first guiding plate is fixedly installed on the outer part of the water storage tank, a second guiding plate is fixedly installed on the inner wall of the storage tank, and a sewage discharge pipe is arranged on the outer part of the storage tank; When the water overflows the water storage tank, the fiber impurities are collected on the collection filter screen. The water moves along the collection filter screen under the guidance of the first guiding plate and carries the fiber impurities to be discharged through the sewage discharge pipe, and part of the water falls into the storage tank through the gap between the first guiding plate and the second guiding plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, water is injected into the top of the converging plate through the transmission assembly and the water injection assembly, and converges to the middle and moves downward into the waste gas flow channel, so that the waste gas flow channel is in a wet state. The waste gas generated by the non-woven fabric oven main body passes through the top of the separation chamber and enters the waste gas flow channel to rotate and move downward. Since the waste gas flow channel is in a wet state, during the flow of the waste gas in the waste gas flow channel, the fiber impurities contact the inner wall of the wet waste gas flow channel and adhere to the inner wall of the waste gas flow channel under the action of water. Then, water is injected into the top of the converging plate through the spray holes, and the water moves along the waste gas flow channel and carries the adhered fiber impurities into the interior of the transmission assembly for collection. In this process, manual replacement of the filter bag is avoided from affecting normal production, the air quality of the workshop is ensured, and at the same time, the service life of the equipment is improved; When the push ring is pushed upward by the air cylinder in the present invention, the water in the storage tank enters the lower end of the water storage tank through the water passing holes and the communication holes. When the push ring moves downward, the water at the lower end of the water storage tank is pushed through the connecting pipe, the annular pipe and the spray holes into the top of the separation chamber. The water moves downward along the spiral fins and carries the fiber impurities with lower density such as polypropylene and wool attached in the waste gas flow channel into the interior of the water storage tank and floats on the water surface. By pushing the push ring upward, the water and the fiber impurities overflow the water storage tank and are discharged into the interior of the storage tank, achieving the purpose of automatic collection of fiber impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic connection structure diagram of the non-woven fabric oven main body and the separation assembly of the present invention; Figure 2 is a schematic internal structure diagram of the present invention; Figure 3Schematic diagram of the cooperation structure between the separation component and the transmission component of the present invention; Figure 4 Schematic diagram of the disassembled structure of the separation component of the present invention; Figure 5 Schematic diagram of the sectional structure of the separation component of the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure at position A in; Figure 7 For the present invention Figure 5 Schematic diagram of the enlarged structure at position C in; Figure 8 Schematic diagram of the disassembled structure of the cleaning component of the present invention.

[0015] In the figure: 1, main body of non-woven fabric oven; 2, cleaning component; 21, funnel ring; 22, first docking part; 23, second docking part; 24, movable rod; 25, spiral groove; 26, reciprocating spiral groove; 3, transmission component; 31, storage box; 32, collection filter screen; 33, connecting frame; 34, cover plate; 35, water storage tank; 36, pushing ring; 37, connecting rod; 38, stabilizing frame; 311, rubber connecting part; 312, communication hole; 313, valve plate; 321, first guiding plate; 322, second guiding plate; 323, sewage discharge pipe; 4, separation component; 41, separation bin; 42, spiral blade; 43, gathering plate; 5, water injection component; 51, connecting pipe; 52, annular pipe; 53, spray hole; 6, water injection pipe. Detailed implementation manners

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0017] As Figures 1 to 8 shown, the present invention provides an exhaust gas treatment and fiber impurity separation device for a non-woven fabric oven, including the main body 1 of the non-woven fabric oven, and further including: A separation component 4, the separation component 4 is connected to the side of the main body 1 of the non-woven fabric oven; A transmission component 3, the transmission component 3 is fixedly installed at the bottom of the separation component 4; A cleaning component 2, the cleaning component 2 is arranged inside the transmission component 3; A water injection pipe 6, the water injection pipe 6 is installed on the transmission component 3; The water injection assembly 5 is connected to the transmission assembly 3 and the separation assembly 4, and injects the water in the transmission assembly 3 into the top of the separation assembly 4, making the inside of the separation assembly 4 in a wet state; Among them, the separation assembly 4 includes a separation chamber 41. The separation chamber 41 is communicated with the non-woven fabric oven main body 1. Two spiral fins 42 are fixedly installed inside the separation chamber 41. An exhaust gas flow channel is formed between the two spiral fins 42 and the separation chamber 41; A gathering plate 43 with a concave middle part is fixedly installed at the top of the spiral fin 42; The water injection assembly 5 includes an annular pipe 52 fixedly installed at the upper end inside the separation chamber 41. Spray holes 53 are formed in the inner circumference of the annular pipe 52. A connecting pipe 51 is connected to the outside of the annular pipe 52, and the connecting pipe 51 is communicated with the transmission assembly 3.

[0018] Water is injected into the top of the gathering plate 43 through the transmission assembly 3 and the water injection assembly 5, and gathers towards the middle and moves down into the exhaust gas flow channel, making the exhaust gas flow channel in a wet state. The exhaust gas generated by the non-woven fabric oven main body 1 enters the exhaust gas flow channel through the top of the separation chamber 41 and rotates and moves down. Since the exhaust gas flow channel is in a wet state, the fiber impurities come into contact with the inner wall of the wet exhaust gas flow channel during the flow of the exhaust gas, and adhere to the inner wall of the exhaust gas flow channel under the action of water. Then, water is injected into the top of the gathering plate 43 through the spray holes 53. The water moves along the exhaust gas flow channel and carries the attached fiber impurities into the inside of the transmission assembly 3 for collection. In this process, it avoids the influence of manual filter bag replacement on normal production, ensures the air quality in the workshop, and improves the service life of the equipment at the same time. And the exhaust gas enters the transmission assembly 3 along the exhaust gas flow channel and is discharged for further treatment.

[0019] Such as Figure 3 And Figure 5 As shown in the figure, the transmission assembly 3 includes a storage tank 31 fixedly installed outside the separation chamber 41 through a connecting frame 33. A cover plate 34 is installed on the top of the storage tank 31. A water storage tank 35 is fixedly installed inside the storage tank 31; The inside of the water storage tank 35 is filled with water. In the initial state, the water level in the water storage tank 35 is flush with the top of the water storage tank 35; A push ring 36 is movably sleeved inside the water storage tank 35. A connecting rod 37 is fixedly installed at the bottom of the push ring 36. A stabilizing frame 38 is fixedly installed at the bottom of the connecting rod 37. An air cylinder is fixedly installed outside the storage tank 31, and the output end is connected to the stabilizing frame 38; The lower end of the separation chamber 41 is funnel-shaped, and the lower end of the separation chamber 41 is located in the water in the water storage tank 35; A collection filter screen 32 is fixedly installed between the water storage tank 35 and the storage tank 31; The upward movement of the push ring 36 pushes the water in the water storage tank 35 upward to overflow the water storage tank 35, and the floating fiber impurities enter the storage box 31 and are intercepted by the collection filter screen 32.

[0020] Inject the waste gas generated in the non-woven fabric oven main body 1 into the separation chamber 41 to separate the fiber impurities in the waste gas. The waste gas enters the water in the water storage tank 35 along the separation chamber 41. Since the water level inside the water storage tank 35 in the initial state is flush with the top of the water storage tank 35, after the waste gas enters the water in the water storage tank 35 through the bottom of the separation chamber 41, bubbles are formed, which carry the fiber impurities at the lower end of the separation chamber 41 out of the inside of the separation chamber 41, making the fiber impurities float on the water surface of the water storage tank 35, and the gas is discharged through the pipeline connected to the cover plate 34 for further treatment; At the same time, the air cylinder drives the stable frame 38, the connecting rod 37 and the push ring 36 to move upward to push the water in the water storage tank 35 upward. During the upward movement, the fiber impurities floating on the water surface overflow the water storage tank 35 and are intercepted by the collection filter screen 32, and the overflowed water is stored inside the storage box 31.

[0021] As Figure 3 、 Figure 5 and Figure 8 shown, the transmission assembly 3 further includes a water passing hole opened outside the water storage tank 35. The water passing hole is located at the bottom of the push ring 36. A valve plate 313 for blocking the water passing hole is connected to the side of the water passing hole through a rubber connector 311, and a communication hole 312 is opened outside the rubber connector 311; The outer diameter of the valve plate 313 is larger than the inner diameter of the water passing hole; When the push ring 36 moves upward, the water in the storage box 31 enters the lower end inside the water storage tank 35 through the water passing hole and the communication hole 312; When the push ring 36 moves downward, it squeezes the water valve plate 313 at the lower end to block the water passing hole, and the water is injected into the top of the converging plate 43 through the connecting pipe 51, the annular pipe 52 and the spray holes 53. The water moves downward along the waste gas flow channel formed by the two spiral fins 42, making the inner wall of the waste gas flow channel in a wet state.

[0022] During the upward movement of the push ring 36 by the air cylinder, the water in the storage box 31 enters the lower end of the water storage tank 35 through the water passing hole and the communication hole 312. When the push ring 36 moves downward, it pushes the water at the lower end of the water storage tank 35 to enter the top of the separation chamber 41 through the connecting pipe 51, the annular pipe 52 and the spray holes 53. The water moves downward along the spiral fins 42 and carries the fiber impurities with lower density such as polypropylene and wool attached in the waste gas flow channel into the inside of the water storage tank 35 and floats on the water surface. By moving the push ring 36 upward, the water and the fiber impurities overflow the water storage tank 35 and are discharged into the storage box 31, achieving the purpose of automatic collection of fiber impurities. At the same time, the cover plate 34 can be lifted regularly to clean the fiber impurities collected on the collection filter screen 32.

[0023] As shown Figure 2 in Figure 8 Figure, the cleaning component 2 includes a movable rod 24 movably arranged inside the water storage tank 35. A second docking member 23 is fixedly installed on the pushing ring 36. The second docking member 23 is sleeved outside the movable rod 24. A spiral groove 25 is opened at the lower end of the movable rod 24; A convex block is arranged on the inner wall of the second docking member 23 and is movable inside the spiral groove 25; A reciprocating spiral groove 26 is opened at the upper end of the movable rod 24. A funnel ring 21 is movably sleeved at the lower end of the separation chamber 41. A first docking member 22 sleeved on the upper end of the movable rod 24 is fixedly installed outside the funnel ring 21; A convex block is arranged on the inner wall of the first docking member 22 and is movable inside the reciprocating spiral groove 26.

[0024] By moving the pushing ring 36 upward, the convex block on the inner wall of the second docking member 23 cooperates with the spiral groove 25 to drive the movable rod 24 to rotate. During the rotation process, through the cooperation of the reciprocating spiral groove 26 and the convex block on the inner wall of the first docking member 22, the first docking member 22 and the funnel ring 21 are driven to move up and down reciprocally along the reciprocating spiral groove 26, so that the water surface of the spiral groove 25 forms an outward-expanding wave in the middle. Under the action of the wave, the fiber impurities floating on the water surface are pushed.

[0025] As shown Figure 2 in Figure, a first guide plate 321 is fixedly installed outside the water storage tank 35. A second guide plate 322 is fixedly installed on the inner wall of the storage tank 31. A sewage discharge pipe 323 is arranged outside the storage tank 31;

[0026] The working principle and usage process of the present invention: Water is injected into the top of the converging plate 43 through the transmission component 3 and the water injection component 5, and converges toward the middle and moves downward into the exhaust gas flow channel, so that the exhaust gas flow channel is in a wet state. The exhaust gas generated by the non-woven fabric oven main body 1 passes through the top of the separation chamber 41 and enters the exhaust gas flow channel and rotates downward. Since the exhaust gas flow channel is in a wet state, during the flow of the exhaust gas in the exhaust gas flow channel, the fiber impurities contact the inner wall of the wet exhaust gas flow channel and adhere to the inner wall of the exhaust gas flow channel under the action of water. Then, water is injected into the top of the converging plate 43 through the spray hole 53. The water moves along the exhaust gas flow channel and carries the attached fiber impurities into the interior of the transmission component 3 for collection. During this process, it is avoided that manual replacement of the filter bag affects normal production; Since the water level inside the water storage tank 35 is initially flush with the top of the water storage tank 35, after the exhaust gas enters the water in the water storage tank 35 through the bottom of the separation chamber 41, bubbles are formed, which carry the fiber impurities at the lower end of the separation chamber 41 out of the interior of the separation chamber 41, causing the fiber impurities to float on the water surface of the water storage tank 35. The gas is then discharged through the pipeline connected to the cover plate 34 for further treatment; At the same time, the air cylinder drives the stabilizer 38, the connecting rod 37 and the pushing ring 36 to move upward, pushing the water in the water storage tank 35 upward. During the upward movement, the fiber impurities floating on the water surface overflow the water storage tank 35 and are intercepted by the collection filter screen 32. The overflowed water is stored inside the storage tank 31; During the process of pushing the pushing ring 36 upward by the air cylinder, the water in the storage tank 31 enters the lower end of the water storage tank 35 through the water passing hole and the communication hole 312. When the pushing ring 36 moves downward, it pushes the water at the lower end of the water storage tank 35 through the connecting pipe 51, the annular pipe 52 and the spray holes 53 into the top of the separation chamber 41. The water moves downward along the spiral sheet 42, carrying the fiber impurities with lower density such as polypropylene and wool attached to the exhaust gas flow channel into the interior of the water storage tank 35 and floating on the water surface. By pushing the pushing ring 36 upward, the water and the fiber impurities overflow the water storage tank 35 and are discharged into the interior of the storage tank 31, achieving the purpose of automatic collection of fiber impurities; When the pushing ring 36 moves upward, the convex block on the inner wall of the second docking member 23 cooperates with the spiral groove 25 to drive the movable rod 24 to rotate. During the rotation process, through the cooperation of the reciprocating spiral groove 26 and the convex block on the inner wall of the first docking member 22, the first docking member 22 and the funnel ring 21 are driven to move up and down reciprocally along the reciprocating spiral groove 26, causing the water surface of the spiral groove 25 to form an outward-expanding wave from the middle. Under the action of the wave, the fiber impurities floating on the water surface are pushed.

[0027] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Waste gas treatment and fiber impurity separation device for non-woven fabric oven, including the main body (1) of the non-woven fabric oven, characterized in that, It further includes: A separation component (4), which is connected to the side of the non-woven fabric oven main body (1); A transmission component (3), which is fixedly installed at the bottom of the separation component (4); A cleaning component (2), which is arranged inside the transmission component (3); A water injection pipe (6), which is installed on the transmission component (3); A water injection component (5), which is connected to the transmission component (3) and the separation component (4), and injects the water in the transmission component (3) into the top of the separation component (4) to make the inside of the separation component (4) in a wet state; Among them, the separation component (4) includes a separation chamber (41), the separation chamber (41) is communicated with the non-woven fabric oven main body (1), and two spiral fins (42) are fixedly installed inside the separation chamber (41), and an exhaust gas flow channel is formed between the two spiral fins (42) and the separation chamber (41); The top of the spiral fin (42) is fixedly installed with a converging plate (43) with a concave middle part; The water injection component (5) includes an annular pipe (52) fixedly installed at the upper end inside the separation chamber (41), spray holes (53) are opened on the inner circumference of the annular pipe (52), a connecting pipe (51) is connected to the outside of the annular pipe (52), and the connecting pipe (51) is communicated with the transmission component (3).

2. The waste gas treatment and fiber impurity separation device of the non-woven fabric oven according to claim 1, wherein: The transmission component (3) includes a storage box (31) fixedly installed outside the separation chamber (41) through a connecting frame (33), a cover plate (34) is installed on the top of the storage box (31), and a water storage tank (35) is fixedly installed inside the storage box (31); The inside of the water storage tank (35) is filled with water, and in the initial state, the water level in the water storage tank (35) is flush with the top of the water storage tank (35); A push ring (36) is movably sleeved inside the water storage tank (35), a connecting rod (37) is fixedly installed at the bottom of the push ring (36), a stabilizing frame (38) is fixedly installed at the bottom of the connecting rod (37), and an air cylinder is fixedly installed outside the storage box (31), and the output end is connected to the stabilizing frame (38).

3. The waste gas treatment and fiber impurity separation device of the non-woven fabric oven according to claim 2, characterized in that: The lower end of the separation chamber (41) is funnel-shaped, and the lower end of the separation chamber (41) is located in the water in the water storage tank (35).

4. The waste gas treatment and fiber impurity separation device of the non-woven fabric oven according to claim 3, characterized in that: A collection filter screen (32) is fixedly installed between the water storage tank (35) and the storage box (31); When the push ring (36) moves upward, it pushes the water in the water storage tank (35) upward to overflow the water storage tank (35), and the floating fiber impurities enter the storage box (31) and are intercepted by the collection filter screen (32).

5. The waste gas treatment and fiber impurity separation device of the non-woven fabric oven according to claim 2, characterized in that: The transmission component (3) further includes a water passing hole opened outside the water storage tank (35), the water passing hole is located at the bottom of the push ring (36), a valve plate (313) for blocking the water passing hole is connected to the side of the water passing hole through a rubber connecting piece (311), and a communication hole (312) is opened on the outside of the rubber connecting piece (311); The outer diameter of the valve plate (313) is larger than the inner diameter of the water passing hole.

6. The waste gas treatment and fiber impurity separation device of the non-woven fabric oven according to claim 5, characterized in that: When the pushing ring (36) moves upward, the water in the storage tank (31) enters the lower end inside the water storage tank (35) through the water passing holes and the communication holes (312). When the pushing ring (36) moves downward, it presses the water valve plate (313) at the lower end to block the water passing holes, and the water is injected into the top of the converging plate (43) through the connecting pipe (51), the annular pipe (52) and the spray holes (53). The water moves downward along the exhaust gas flow channel formed by the two spiral fins (42), making the inner wall of the exhaust gas flow channel wet.

7. The waste gas treatment and fiber impurity separation device of the non-woven fabric oven according to claim 2, wherein: The cleaning assembly (2) includes a movable rod (24) movably arranged inside the water storage tank (35). A second docking member (23) is fixedly installed on the pushing ring (36). The second docking member (23) is sleeved outside the movable rod (24), and a spiral groove (25) is formed at the lower end of the movable rod (24). The inner wall of the second docking member (23) is provided with a convex block, which moves inside the spiral groove (25).

8. The waste gas treatment and fiber impurity separation device of the non-woven fabric oven according to claim 7, characterized in that: A reciprocating spiral groove (26) is formed at the upper end of the movable rod (24). A funnel ring (21) is movably sleeved at the lower end of the separation chamber (41). A first docking member (22) sleeved on the upper end of the movable rod (24) is fixedly installed outside the funnel ring (21). The inner wall of the first docking member (22) is provided with a convex block, which moves inside the reciprocating spiral groove (26).

9. The waste gas treatment and fiber impurity separation device of the non-woven fabric oven according to claim 4, characterized in that: A first guiding plate (321) is fixedly installed outside the water storage tank (35). A second guiding plate (322) is fixedly installed on the inner wall of the storage tank (31). A sewage discharge pipe (323) is arranged outside the storage tank (31). When the water overflows the water storage tank (35), the fiber impurities are collected on the collection filter screen (32). The water moves along the collection filter screen (32) under the guidance of the first guiding plate (321) and carries the fiber impurities out through the sewage discharge pipe (323). Part of the water falls into the storage tank (31) through the gap between the first guiding plate (321) and the second guiding plate (322).

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