Air inlet scraper and waste gas treatment equipment

Abstract

The utility model relates to the technical field of general semiconductor waste gas treatment equipment, and discloses an air inlet scraper and waste gas treatment equipment. The air inlet scraper comprises a scraper assembly, a scraper connecting assembly and a scraper driving assembly. The scraper assembly is used for being arranged in the pipeline and abuts against the inner wall of the pipeline. One end of the scraper connecting assembly is connected with the scraper assembly. The scraper driving assembly is connected with the other end of the scraper connecting assembly and drives the scraper assembly to move through the scraper connecting assembly. Through the arrangement of the scraper assembly capable of abutting against the inner wall of the pipeline, the scraper connecting assembly connected with the scraper assembly and the scraper driving assembly, the scraper connecting assembly can be driven by the scraper driving assembly, so that the scraper assembly is driven to move in the pipeline, the scraper assembly can scrape dust on the inner wall of the pipeline, and the dust on the inner wall of the pipeline is removed. And pipeline blockage is avoided. The problems that an air inlet pipeline of an air inlet cavity of waste gas treatment equipment in the prior art is blocked by dust and a traditional air cylinder scraper is difficult to install are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of semiconductor waste gas treatment equipment, especially to an air inlet scraper and waste gas treatment equipment. BACKGROUND

[0002] With the increasing prosperity of the semiconductor industry, the production capacity has increased rapidly, and various waste gases (such as NF3, PH3, B2H6, SiH4, etc.) are generated in the production process. Most of these gases are harmful to the human body and the environment. Most of the unorganized waste gas discharged is heavier than air. If it is discharged into the atmosphere, it will deposit on the ground after spreading and reach a very high concentration, causing serious environmental pollution and endangering human health. If a fire source is encountered, a fire will occur, and even an explosion will occur. Therefore, the market demand for waste gas treatment equipment is very large. However, due to the different internal facilities and environments of semiconductor manufacturers, there is a great demand for various practical special devices for waste gas treatment equipment. At present, the waste gas treatment equipment includes a pipeline and a negative pressure pipe. During the use, when the waste gas enters the treatment chamber, dust will block the air inlet, and dust will block the negative pressure monitoring port, which will cause the equipment to stop running. Because the client of the waste gas treatment equipment has limited floor area, it does not support the installation of general traditional air cylinder scrapers.

[0003] Therefore, how to solve the problems of dust blocking the air inlet pipe of the air inlet cavity of the waste gas treatment equipment and the difficulty of installing the traditional air cylinder scraper is an urgent problem in the industry. INVENTION CONTENTS

[0004] The utility model provides a kind of air inlet scraper and waste gas treatment equipment to solve the problems of dust blocking the air inlet pipe of the air inlet cavity of the waste gas treatment equipment in prior art and the difficulty of installing traditional air cylinder scraper.

[0005] The utility model provides a kind of air inlet scraper in the first aspect, comprising:

[0006] Scraper assembly, for being set in pipeline, the scraper assembly is abutted with the inner wall of the pipeline;

[0007] Scraper connecting assembly, one end of the scraper connecting assembly is connected with the scraper assembly;

[0008] First scraper driving assembly, the other end of the scraper connecting assembly is connected, and the first scraper driving assembly drives the scraper assembly to move through the scraper connecting assembly.

[0009] According to the air inlet scraper provided by the utility model, the scraper assembly comprises a scraper plate; the circumferential side of the scraper plate is used for abutting with the inner wall of the pipeline; one end of the scraper connecting assembly is connected with the first end surface of the scraper plate, and the scraper connecting assembly is used for slidingly matching with the pipeline along the axial direction of the pipeline; the first scraper driving assembly drives the scraper plate to reciprocate along the axial direction of the pipeline through the scraper connecting assembly.

[0010] According to the air inlet scraper provided by the utility model, the scraper connecting assembly comprises:

[0011] The first scraper connecting rod is connected with the first end surface of the scraper plate at one end and is used for slidingly matching with the pipeline;

[0012] The first flexible connecting piece is connected with the other end of the first scraper connecting rod at one end;

[0013] The second scraper connecting rod is connected with the other end of the first flexible connecting piece at one end, and the other end of the second scraper connecting rod is connected with the first scraper driving assembly.

[0014] According to the air inlet scraper provided by the utility model, the scraper connecting assembly comprises:

[0015] The shell has a containing cavity inside, the scraper connecting assembly is located in the containing cavity, and an air passage gap is formed between the scraper connecting assembly and the inner side wall of the shell; an air inlet hole is formed in the shell and is in communication with the air passage gap; the first scraper connecting rod is a pipe material, a plurality of air outlet holes are formed in the side surface of the first scraper connecting rod, the plurality of air outlet holes are arranged at intervals along the axial direction of the first scraper connecting rod, and the air outlet holes are in communication with the air passage gap.

[0016] According to the air inlet scraper provided by the utility model, the shell comprises:

[0017] The guide pipe is sleeved outside the first scraper connecting rod and the first flexible connecting piece, and one end of the guide pipe is used for being connected with the pipeline;

[0018] The fixed pipe is detachably connected with the other end of the guide pipe at one end, the fixed pipe is sleeved outside the second scraper connecting rod, and the other end of the fixed pipe is connected with the scraper driving assembly.

[0019] According to the air inlet scraper provided by the utility model, the guide pipe comprises:

[0020] The straight pipe section is sleeved outside the first scraper connecting rod, and one end of the straight pipe section is used for being connected with the pipeline;

[0021] A bent pipe section is formed at the other end of the straight pipe section; the bent pipe section is sleeved outside the first flexible connecting piece; and the end of the bent pipe section away from the straight pipe section is detachably connected with the fixed pipe.

[0022] According to the air inlet scraper provided by the utility model, the first flexible connecting piece is a tensile spring.

[0023] According to the air inlet scraper provided by the utility model, along the axial direction of the pipeline, the scraper plate is provided with a ventilation hole.

[0024] According to the air inlet scraper provided by the utility model, the scraper driving assembly is a linear cylinder.

[0025] The utility model provides a kind of waste gas treatment equipment, including the air inlet scraper of any one of the above.

[0026] The air inlet scraper provided by the utility model can be abutted with the scraper assembly of the inner wall of the pipeline, the scraper connecting assembly connected with the scraper assembly, and the scraper driving assembly for driving the scraper connecting assembly, the scraper connecting assembly can be driven by the scraper driving assembly, so as to drive the scraper assembly to move in the pipeline, so that the scraper assembly can scrape dust on the inner wall of the pipeline, to avoid pipeline blockage.The problems of dust blockage in the inlet pipe of the inlet cavity of the waste gas treatment equipment in the prior art and the difficulty of installing the traditional cylinder scraper are solved.

[0027] The waste gas treatment equipment provided by the utility model includes the above-mentioned air inlet scraper, and therefore has at least the above-mentioned advantages. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description, and it is obvious that the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0029] Figure 1 is one of the structure schematic views of the air inlet scraper provided by the utility model.

[0030] Figure 2 is the second structure schematic view of the air inlet scraper provided by the utility model.

[0031] Figure 3 is the third structure schematic view of the air inlet scraper provided by the utility model.

[0032] Figure 4 is Figure 2 the structure schematic view of A-A section in the above-mentioned embodiment.

[0033] Reference signs:

[0034] 100, air inlet blade

[0035] 110, blade assembly; 111, blade plate; 112, air hole; 113, circumferential side

[0036] 120, blade connecting assembly; 121, first blade connecting rod; 122, first flexible connecting piece; 123, second blade connecting rod; 124, air outlet hole

[0037] 130, blade driving assembly

[0038] 140, shell; 141, guide pipe; 142, fixed pipe; 143, straight-through type sleeve; 144, straight pipe section; 145, elbow pipe section

[0039] 150, sleeve air inlet pipe; 160, throttle valve DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme in the utility model will be described clearly and completely below in combination with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0041] In the description of the embodiments of the utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship shown in the drawings, and is only for the convenience of describing the embodiments of the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0042] In the description of the utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.

[0043] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature can be "above", "over" and "on" the second feature, which can be that the first feature is directly above or obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The first feature can be "under", "below" and "under" the second feature, which can be that the first feature is directly below or obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

[0044] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0045] The following will be described in detail Figures 1 to 4 The structure and working principle of the air inlet scraper and the waste gas treatment equipment of the present application will be described in detail.

[0046] As Figures 1 to 4 shown, the first aspect of the embodiments of the present application provides an air inlet scraper 100. The air inlet scraper 100 can be used to dredge the blocked pipeline. The air inlet scraper 100 comprises a scraper assembly 110, a scraper connecting assembly 120 and a first scraper driving assembly 130. The scraper assembly 110 is arranged in the pipeline, and the scraper assembly 110 abuts against the inner wall of the pipeline. One end of the scraper connecting assembly 120 is connected with the scraper assembly 110. The other end of the scraper connecting assembly 120 is connected with the first scraper driving assembly 130, and the first scraper driving assembly 130 drives the scraper assembly 110 to move through the scraper connecting assembly 120.

[0047] In the embodiment, by arranging the scraper assembly 110 capable of abutting against the inner wall of the pipeline, the scraper connecting assembly 120 connected with the scraper assembly 110, and the first scraper driving assembly 130 for driving the scraper connecting assembly 120, the scraper connecting assembly 120 can be driven by the first scraper driving assembly 130, so that the scraper assembly 110 is driven to move in the pipeline, and the dust on the inner wall of the pipeline can be scraped off by the scraper assembly 110, thereby avoiding the pipeline blockage. The problems of dust blockage in the pipeline of the air inlet of the air inlet cavity of the waste gas treatment equipment and difficult installation of the traditional cylinder scraper are solved.

[0048] It should be noted that the first scraper driving assembly 130 can drive the scraper assembly 110 to move along the axial direction of the pipeline or rotate relative to the pipeline through the scraper connecting assembly 120.

[0049] In some embodiments, the first scraper driving assembly 130 can be a rotary cylinder or a motor. Taking the rotary cylinder as an example, the rotary cylinder drives the pipeline connecting assembly to rotate, so that the scraper assembly 110 is driven to rotate in the pipeline.

[0050] In some other embodiments, the first scraper driving assembly 130 can be a linear cylinder, which can drive the scraper assembly 110 to move linearly along the axial direction of the pipeline in the pipeline through the scraper connecting assembly 120.

[0051] Further, both the linear cylinder and the rotary cylinder are double-drive cylinders, and both have two specifications of air inlet pipes, which can prevent air pipe installation errors during installation.

[0052] Next, taking the linear motion of the scraper assembly 110 along the axial direction of the pipeline in the pipeline as an example, the air inlet scraper 100 of the utility model is described in detail.

[0053] As shown in Figure 3 and Figure 4 In some embodiments, the scraper assembly 110 includes a scraper plate 111, and the circumferential side surface 113 of the scraper plate 111 is used for abutting against the inner wall of the pipeline. When the scraper plate 111 moves along the axial direction of the pipeline in the pipeline, the circumferential side surface 113 of the scraper plate 111 can scrape off the dust on the inner wall of the pipeline. One end of the scraper connecting assembly 120 is connected with the first end surface of the scraper plate 111, and the scraper connecting assembly 120 is used for sliding fit along the axial direction of the pipeline; the first scraper driving assembly 130 drives the scraper plate 111 to reciprocate along the axial direction of the pipeline through the scraper connecting assembly 120. By arranging the scraper plate 111 capable of abutting against the inner wall of the pipeline along the axial direction of the pipeline, and the scraper connecting assembly 120 capable of sliding fit along the axial direction of the pipeline, and cooperating with the first scraper driving assembly 130, the dust on the pipeline can be removed along the axial direction, and the structure is simple and the operation is convenient.

[0054] Specifically, the linear cylinder is connected to the other end of the scraper connecting assembly 120, and is used to drive the scraper plate 111 to reciprocate along the axial direction of the pipe through the scraper connecting assembly 120, so as to scrape off the dust adhering to the inner wall of the pipe.

[0055] like Figure 4 As shown, furthermore, along the axial direction of the pipe, the scraper blade 111 is provided with a vent hole 112. The vent hole 112 can ensure that the gas in the pipe flows smoothly when the scraper blade 111 is working, so as to achieve continuous operation and improve the working speed.

[0056] It should be noted that the shape of the vent 112 is not limited in this embodiment. Preferably, the vent 112 is a fan-shaped hole. The central angle of each fan-shaped hole points to the center of the scraper plate 111.

[0057] Specifically, the cross-section of the scraper blade 111 has the same shape as the cross-section of the pipe. For example, the cross-section of the scraper blade 111 is circular.

[0058] like Figure 3 and Figure 4 As shown, the scraper connection assembly 120 further includes a first scraper connecting rod 121, a first flexible connector 122, and a second scraper connecting rod 123. One end of the first scraper connecting rod 121 is connected to the first end face of the scraper plate 111 and is used for sliding engagement with the pipeline; one end of the first flexible connector 122 is connected to the other end of the first scraper connecting rod 121. One end of the second scraper connecting rod 123 is connected to the other end of the first flexible connector 122, and the other end of the second scraper connecting rod 123 is connected to the first scraper drive assembly 130. By setting the first scraper connecting rod 121, an installation base can be provided for the scraper plate 111, which guides the scraper plate 111 and ensures that the scraper plate 111 can move axially along the pipeline when subjected to force. By providing the first flexible connector 122, the shape of the scraper connecting assembly 120 can be adjusted according to actual conditions. For example, the first flexible connector 122 can be bent, which reduces the footprint of the scraper connecting assembly 120, facilitating the miniaturization of the air inlet scraper 100 and making it easier to use in areas with limited space. Additionally, the installation direction of the first scraper drive assembly 130 can be adjusted to reduce installation space. By providing the second scraper connecting rod 123, a mounting base can be provided for the first scraper drive assembly 130, facilitating force transmission.

[0059] Specifically, one end of the first scraper connecting rod 121 is welded to the first end face of the scraper plate 111, and one end of the first flexible connecting piece 122 is welded to the other end of the first scraper connecting rod 121; one end of the second scraper connecting rod 123 is welded to the other end of the first flexible connecting piece 122, and the other end of the second scraper connecting rod 123 is connected to the piston rod of the cylinder. The piston rod of the cylinder drives the scraper plate 111 to reciprocate along the axial direction of the pipeline through the second scraper connecting rod 123, the first flexible connecting piece 122 and the first scraper connecting rod 121.

[0060] Further, the first flexible connecting piece 122 can be a tension spring. The tension spring can be used to tightly fit each wave in a free state, so that the scraper plate 111 works under the action of a rigid force, improving the dust removal effect.

[0061] As shown in Figures 1 to 4 Further, the air inlet scraper 100 further comprises a shell 140; the shell 140 has a containing cavity inside, the scraper connecting assembly 120 is located in the containing cavity, and an air gap is formed between the shell 140 and the inner side wall; the shell 140 is provided with an air inlet hole communicating with the air gap; the first scraper connecting rod 121 is a pipe material, and a plurality of air outlet holes 124 are formed in the side surface of the first scraper connecting rod 121, the plurality of air outlet holes 124 are arranged at intervals along the axial direction of the first scraper connecting rod 121, and the air outlet holes 124 communicate with the air gap. When the scraper plate 111 reciprocates along the axial direction of the pipeline, the first scraper connecting rod 121 will also move relative to the pipeline, and the air inlet hole, the first scraper connecting rod 121 and the air gap form a blowing pipeline, and the air outlet holes 124 on the first scraper connecting rod 121 have a blowing effect. When the scraper plate 111 works, the airflow blown by the air outlet holes 124 can ensure that the first scraper connecting rod 121 is under positive pressure and the airflow continuously flows out, so that no dust enters the inside of the shell 140, and the inside of the scraper can be protected from being eroded by dust and waste gas.

[0062] Specifically, one end of the shell 140 is used to connect with the pipeline, the other end of the shell 140 is threadedly assembled with the cylinder, and a sealing gasket is arranged inside. The containing cavity of the shell 140 can ensure that the piston rod of the cylinder can move freely.

[0063] Specifically, a clamping sleeve air inlet pipe 150 is installed at the air inlet hole of the shell 140, a throttle valve 160 is installed on the clamping sleeve air inlet pipe 150, and the throttle valve 160 is used to adjust the airflow into the air gap, so as to ensure that the airflow discharged from the air outlet hole 124 can prevent dust and waste gas from entering the containing cavity of the shell 140, and the inside of the air inlet scraper 100 is not eroded by dust and waste gas.

[0064] As shown in Figures 1 to 4As shown, further, the shell 140 comprises a guide pipe 141 and a fixed pipe 142; the guide pipe 141 is sleeved outside the first scraper connecting rod 121 and the first flexible connecting piece 122, one end of the guide pipe 141 is used for connecting with the pipeline. One end of the fixed pipe 142 is detachably connected with the other end of the guide pipe 141, the fixed pipe 142 is sleeved outside the second scraper connecting rod 123, the other end of the fixed pipe 142 is connected with the first scraper driving assembly 130. By arranging the guide pipe 141, the first scraper connecting rod 121 and the first flexible connecting piece 122 can be protected, by arranging the fixed pipe 142, the second scraper connecting rod 123 can be protected. By detachably connecting the guide pipe 141 with the fixed pipe 142, the air inlet scraper 100 can be conveniently maintained and disassembled. For example, when the tension spring is damaged and needs to be replaced, the scraper plate 111 needs to be maintained, the linear cylinder needs to be maintained, etc., the guide pipe 141 and the fixed pipe 142 can be first disassembled.

[0065] Specifically, the guide pipe 141 and the fixed pipe 142 are connected by a straight-through type sleeve 143 to form the shell 140 with an accommodating cavity inside, the fixed pipe 142 is threadedly assembled with the linear cylinder, the piston rod of the linear cylinder is connected with the second scraper connecting rod 123, and the fixed pipe 142 is provided with an air inlet hole on the pipe wall. The length of the fixed pipe 142 changes with the stroke of the linear cylinder, and the fixed pipe 142 ensures that the piston rod moves within the maximum stroke without being interfered.

[0066] Understandably, the straight-through type sleeve 143 can be a straight-through type variable-diameter sleeve.

[0067] Further, the guide pipe 141 comprises a straight pipe section 144 and an elbow pipe section 145. The straight pipe section 144 is sleeved outside the first scraper connecting rod 121, and one end of the straight pipe section 144 is used for welding connection with the pipeline. The elbow pipe section 145 is formed at the other end of the straight pipe section 144; the elbow pipe section 145 is sleeved outside the first flexible connecting piece 122; one end of the elbow pipe section 145 away from the straight pipe section 144 is detachably connected with the fixed pipe 142. Specifically, one end of the straight pipe section 144 is used for welding connection with the pipeline, the other end of the straight pipe section 144 is integrally formed with the elbow pipe section 145, and the other end of the elbow pipe section 145 is detachably connected with the fixed pipe 142 through the straight-through type sleeve 143. The linear cylinder drives the second scraper connecting rod 123 to move relative to the fixed pipe 142, the second scraper connecting rod 123 pushes the first flexible connecting piece 122, that is, the tension spring deforms, at this time the tension spring moves relative to the elbow pipe section 145; the tension spring drives the first scraper connecting rod 121 to move in the straight pipe section 144, and simultaneously drives the scraper plate 111 to move along the pipeline in the axial direction of the pipeline, so as to scrape off the dust on the inner wall of the pipeline.

[0068] Specifically, the elbow section 145 is flexible, that is, the shape of the elbow section 145 can be changed, ensuring that the deformation of the first flexible connecting piece 122 will not be interfered by the elbow section 145.

[0069] Need to explain, the pipeline of the embodiment can be a tee.

[0070] The specific embodiment of the second aspect of the utility model provides a kind of waste gas treatment equipment.The waste gas treatment equipment includes the air inlet scraper 100 of any embodiment described above.

[0071] Because the embodiment includes the air inlet scraper 100 of any embodiment described above, at least has the advantage described above, here no longer repeats.

[0072] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, rather than limit them;Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of technical features;And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. An air intake wiper, characterized in that, Comprising: A scraper assembly (110) for being arranged in a pipeline, the scraper assembly (110) being arranged to abut against the inner wall of the pipeline; A scraper connecting assembly (120), one end of the scraper connecting assembly (120) being connected with the scraper assembly (110); A first scraper driving assembly (130) being connected with the other end of the scraper connecting assembly (120), the first scraper driving assembly (130) driving the scraper assembly (110) to move through the scraper connecting assembly (120).

2. The air intake blade of claim 1, wherein, The scraper assembly (110) comprises a scraper plate (111), the circumferential side (113) of the scraper plate (111) being arranged to abut against the inner wall of the pipeline, one end of the scraper connecting assembly (120) being connected with the first end face of the scraper plate (111), the scraper connecting assembly (120) being arranged to be slidingly fitted with the pipeline along the axial direction of the pipeline, the first scraper driving assembly (130) driving the scraper plate (111) to reciprocate along the axial direction of the pipeline through the scraper connecting assembly (120).

3. The gas inlet blade according to claim 2, characterized in that The scraper connecting assembly (120) comprises: A first scraper connecting rod (121), one end of the first scraper connecting rod (121) being connected with the first end face of the scraper plate (111) and being arranged to be slidingly fitted with the pipeline; A first flexible connecting piece (122), one end of the first flexible connecting piece (122) being connected with the other end of the first scraper connecting rod (121); A second scraper connecting rod (123), one end of the second scraper connecting rod (123) being connected with the other end of the first flexible connecting piece (122), the other end of the second scraper connecting rod (123) being connected with the first scraper driving assembly (130).

4. The gas inlet blade according to claim 3, characterized in that Further comprising: A housing (140), the housing (140) having a containing cavity inside, the scraper connecting assembly (120) being located in the containing cavity and forming a ventilation gap with the inner side wall of the housing (140), the housing (140) being provided with an air inlet hole which is in communication with the ventilation gap, the first scraper connecting rod (121) being a pipe, a plurality of air outlet holes (124) being provided on the side of the first scraper connecting rod (121), the plurality of air outlet holes (124) being arranged at intervals along the axial direction of the first scraper connecting rod (121), the air outlet holes (124) being in communication with the ventilation gap.

5. The gas inlet blade according to claim 4, characterized in that The housing (140) comprises: A guide pipe (141), the guide pipe (141) being sleeved on the outside of the first scraper connecting rod (121) and the first flexible connecting piece (122), one end of the guide pipe (141) being arranged to be connected with the pipeline; A fixing pipe (142), one end of the fixing pipe (142) being detachably connected with the other end of the guide pipe (141), the fixing pipe (142) being sleeved on the outside of the second scraper connecting rod (123), the other end of the fixing pipe (142) being connected with the first scraper driving assembly (130).

6. The gas inlet blade according to claim 5, characterized in that The guide pipe (141) comprises: A straight pipe section (144) is sleeved outside the first scraper connecting rod (121), one end of the straight pipe section (144) is used for connecting with the pipeline; A bent pipe section (145) is formed at the other end of the straight pipe section (144); the bent pipe section (145) is sleeved outside the first flexible connecting piece (122); one end of the bent pipe section (145) away from the straight pipe section (144) is detachably connected with the fixed pipe (142).

7. The gas inlet blade according to claim 3, wherein The first flexible connecting piece (122) is a tensile spring.

8. The gas inlet blade according to claim 2, wherein Ventilation holes (112) are formed in the scraper plate (111) along the axial direction of the pipeline.

9. The gas inlet blade according to any one of claims 1 to 8, characterized in that The first scraper driving assembly (130) is a linear air cylinder.

10. An exhaust gas treatment device, characterized by, The air inlet scraper (100) according to any one of claims 1 to 9.

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