Waste gas pretreatment device convenient for replacing filter screen

Abstract

The utility model discloses a waste gas pretreatment device convenient for replacing a filter screen, and relates to the technical field of waste gas pretreatment. The device comprises a cylinder body, a box body is arranged on one side of the cylinder body, a box cover is hinged to one side of the box body in a matched mode, a U-shaped rod is elastically and slidably matched with one side of the box body, and the box cover is matched with the U-shaped rod in a clamped mode; and a plurality of U-shaped plates, wherein iron wire meshes are arranged in the U-shaped plates. Through the arrangement of the guide plate, the guide plate pops up from the interior of the U-shaped groove under the elastic action of the second spring, so that the guide plate drives the iron gauze to slide out of the box body through the U-shaped plate and maintains the iron gauze, and the problem that the iron gauze is not easy to slide out of the box body due to impurity accumulation is solved; on one hand, the service life of the iron gauze is prolonged, and on the other hand, the filtering efficiency of air in the box is improved.

Description

Technical Field

[0001] The utility model belongs to the field of waste gas pretreatment, and in particular relates to a waste gas pretreatment device which is convenient for replacing a filter screen. Background Art

[0002] The chemical industry is closely related to people's lives. Food, clothing, housing and transportation are inseparable from chemical products. The chemical industry can be roughly divided into the following categories: petrochemicals, basic chemicals and chemical fibers. In general, the chemical industry has many categories, complex processes and diverse products. Therefore, the chemical industry produces a large number of organic waste gases of various types, large quantities and high toxicity. Some of them are accompanied by irritating odors or even malodorous gases, and the difficulty of treatment is relatively high.

[0003] The patent application with publication number CN219922431U discloses an exhaust gas pretreatment device that is convenient for replacing the filter screen, including: an air inlet and a filter device, one end of the air inlet is connected to the filter device, the filter device includes an air inlet valve, one end of the air inlet is provided with an air inlet valve, the other end of the air inlet valve is connected to one side of the outside of the box, the other side of the outside of the box is provided with an air outlet valve, a card slot is provided in the middle position of the inside of the box, a filter frame is provided in the middle position of the inside of the box, a wire mesh is provided in the middle of the filter frame, a lock cap is provided at the front end of the box, a cover plate is provided at the top of the box, and a lock buckle is provided at the front end of the cover plate. The utility model rotates the lock buckle on the cover plate to separate the lock buckle and the lock cap, open the cover plate, and take out the filter frame set in the card slot, so as to facilitate the replacement and cleaning of the filter material in the wire mesh, optimize the steps of replacing the filter screen, and increase the construction efficiency of the workers.

[0004] However, the above technology has the following disadvantages when used:

[0005] According to the description in paragraph 0028 of the above document, "after long-term treatment of exhaust gas, the air inlet valve 201 and the air outlet valve 202 are closed to prevent gas backflow, and then the lock buckle 208 on the cover plate 204 is rotated to separate the lock cap 209, thereby opening the cover plate 204. After opening the cover plate 204, the filter frame 206 embedded in the card slot 205 is taken out, and the wire mesh 207, as well as the activated carbon, solid adsorbent and other filter materials in the wire mesh 207 are cleaned and replaced, thereby optimizing the process of cleaning the filter and increasing the service life of the filter 207". It can be seen that the impurities in the air inside the filter device 2 need to be filtered through the wire mesh 207, and the filter 207 needs to be maintained regularly, which improves the efficiency of air filtration inside the filter device 2 on the one hand, and increases the service life of the filter 207 on the other hand. With the accumulation of impurities on one side of the filter 207, the filter 207 will be difficult to be taken out from one side of the filter frame 206.

[0006] Therefore, an exhaust gas pretreatment device which is convenient for replacing the filter screen is proposed to solve the above-mentioned drawbacks. Utility Model Content

[0007] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an exhaust gas pretreatment device which is convenient for replacing a filter screen.

[0008] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0009] An exhaust gas pretreatment device for easy replacement of a filter screen comprises a cylinder, a box body is mounted on one side of the cylinder, a box cover is hingedly matched on one side of the box body, a U-shaped rod is elastically and slidably matched on one side of the box body, and the box cover is snap-fitted with the U-shaped rod;

[0010] A plurality of U-shaped plates are provided with wire mesh inside the U-shaped plates. The U-shaped plates are elastically and slidably fitted inside the box body, and the upper ends of the U-shaped plates are fitted with one side of the box cover.

[0011] The U-shaped lever is preferably provided with a plurality of locking members, each of which is provided with a plurality of locking members, each of which is provided with a plurality of locking members, each of which is provided with a plurality of locking members.

[0012] Optionally, the inner wall of the box is evenly distributed with a plurality of U-shaped grooves, and the U-shaped plates are slidably fitted inside the U-shaped grooves, which facilitates the U-shaped plates to slide inside the box through the U-shaped grooves and improves the stability of the U-shaped plates when sliding; guide plates are installed on both sides of the U-shaped plate, which facilitates the installation of the guide plates on the U-shaped plates; the guide plates slidably fit inside the U-shaped grooves, which facilitates the sliding of the guide plates inside the box through the guide plates and improves the stability of the guide plates when sliding; two second springs are installed inside the U-shaped groove, which facilitates the installation of the second springs inside the U-shaped groove; one end of the second spring is attached to one side of the guide plate, which facilitates the guide plate to pop out from the inside of the U-shaped groove under the elasticity of the second spring.

[0013] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0014] The guide plate is arranged so that the guide plate can be ejected from the inside of the U-shaped groove under the action of the elasticity of the second spring, so that the guide plate drives the wire mesh to slide out of the box body through the U-shaped plate and maintain it, thereby reducing the problem that the wire mesh is difficult to slide out of the box body due to the accumulation of impurities. On the one hand, the service life of the wire mesh is improved, and on the other hand, the efficiency of air filtration inside the box is improved.

[0015] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0017] In the figure:

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the structure at A in the middle;

[0020] Figure 3 This is a schematic cross-sectional structure diagram of an embodiment of the utility model;

[0021] Figure 4 for Figure 3 Schematic diagram of the structure at point B in the middle.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] Cylinder body 1, box body 101, box cover 102, positioning hole 103, fixing block 104, guide hole 105, U-shaped rod 106, first spring 107, U-shaped groove 108, U-shaped plate 109, wire mesh 110, guide plate 111, second spring 112.

[0024] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0025] The utility model will now be described in further detail with reference to the accompanying drawings.

[0026] See also Figure 1-4 As shown, in this embodiment, an exhaust gas pretreatment device for facilitating the replacement of a filter screen is provided, comprising a cylinder 1, a box 101 is mounted on one side of the cylinder 1, a box cover 102 is hingedly matched on one side of the box 101, a U-shaped rod 106 is elastically and slidably matched on one side of the box 101, and the box cover 102 is snap-fitted with the U-shaped rod 106;

[0027] There are multiple U-shaped plates 109 , and wire mesh 110 is installed inside the U-shaped plates 109 . The U-shaped plates 109 are elastically and slidably fitted inside the box body 101 , and the upper end of the U-shaped plates 109 is matched with one side of the box cover 102 .

[0028] First, slide the U-shaped rod 106 downward, and the U-shaped rod 106 slides inside the fixed block 104 through the guide hole 105 and stretches the first spring 107. The U-shaped rod 106 slides out from the inside of the positioning hole 103 and releases the positioning of the box cover 102. Then, rotate the box cover 102, and the guide plate 111 slides out from the inside of the U-shaped groove 108 under the elastic action of the second spring 112. The guide plate 111 drives the wire mesh 110 to slide out from the inside of the box body 101 through the U-shaped plate 109, and then it can be maintained.

[0029] The guide plate 111 is set so that the guide plate 111 can pop out from the inside of the U-shaped groove 108 under the elastic action of the second spring 112, so that the guide plate 111 drives the wire mesh 110 to slide out of the box body 101 through the U-shaped plate 109 and maintain it, thereby reducing the problem that the wire mesh 110 is difficult to slide out of the box body 101 due to impurities accumulation. On the one hand, the service life of the wire mesh 110 is improved, and on the other hand, the efficiency of air filtration inside the box body 101 is improved.

[0030] In this embodiment, two fixing blocks 104 are installed on one side of the box body 101, which facilitates the fixing block 104 to be installed on one side of the box body 101. A guide hole 105 is opened on one side of the fixing block 104, and the U-shaped rod 106 is slidably matched inside the guide hole 105, which facilitates the U-shaped rod 106 to slide inside the fixing block 104 through the guide hole 105, thereby improving the stability of the U-shaped rod 106 when sliding. A first spring 107 is installed between the U-shaped rod 106 and the fixing block 104, which facilitates the first spring 107 to be installed between the U-shaped rod 106 and the fixing block 104. The first spring 107 is sleeved on the peripheral side of the U-shaped rod 106, which makes it convenient to sleeve the first spring 107 on the peripheral side of the U-shaped rod 106. Two hinges are installed between the box cover 102 and one side of the box body 101, which makes it convenient to install the hinges between the box cover 102 and one side of the box body 101. Two positioning holes 103 are provided on one side of the box cover 102. One end of the U-shaped rod 106 is located inside the positioning hole 103, which makes it convenient for the U-shaped rod 106 to position the box cover 102 through the positioning hole 103.

[0031] The inner wall of the box body 101 of this embodiment is evenly provided with a plurality of U-shaped grooves 108, and the U-shaped plate 109 is slidably fitted in the interior of the U-shaped groove 108, which facilitates the U-shaped plate 109 to slide inside the box body 101 through the U-shaped groove 108, and improves the stability of the U-shaped plate 109 when sliding. Guide plates 111 are installed on both sides of the U-shaped plate 109, which facilitates the guide plate 111 to be installed on the U-shaped plate 109. The guide plate 111 is slidably fitted in the interior of the U-shaped groove 108, which facilitates the guide plate 111 to slide inside the box body 101 through the guide plate 111, and improves the stability of the guide plate 111 when sliding. Two second springs 112 are installed in the interior of the U-shaped groove 108, which facilitates the second spring 112 to be installed in the interior of the U-shaped groove 108. One end of the second spring 112 is attached to one side of the guide plate 111, which facilitates the guide plate 111 to pop out from the interior of the U-shaped groove 108 under the elastic action of the second spring 112.

[0032] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. An exhaust gas pretreatment device that is easy to replace the filter screen, characterized in that: include: A cylinder (1), a box body (101) is mounted on one side of the cylinder (1), a box cover (102) is hingedly mounted on one side of the box body (101), a U-shaped rod (106) is elastically and slidably mounted on one side of the box body (101), and the box cover (102) is snap-fitted with the U-shaped rod (106); A plurality of U-shaped plates (109) are provided with wire meshes (110) inside the U-shaped plates (109). The U-shaped plates (109) are elastically and slidably fitted inside the box body (101), and the upper ends of the U-shaped plates (109) are fitted with one side of the box cover (102).

2. The exhaust gas pretreatment device for easy filter replacement according to claim 1, characterized in that: Two fixing blocks (104) are installed on one side of the box body (101), a guide hole (105) is opened on one side of the fixing block (104), and the U-shaped rod (106) is slidably fitted inside the guide hole (105).

3. The exhaust gas pretreatment device for easy filter replacement according to claim 2 is characterized in that: A first spring (107) is installed between the U-shaped rod (106) and the fixing block (104), and the first spring (107) is sleeved on the circumference of the U-shaped rod (106).

4. The exhaust gas pre-treatment device for easy filter replacement according to claim 1, characterized in that: Two hinges are installed between the box cover (102) and one side of the box body (101), and two positioning holes (103) are opened on one side of the box cover (102), and one end of the U-shaped rod (106) is located inside the positioning hole (103).

5. The exhaust gas pre-treatment device for easy filter replacement according to claim 1, characterized in that: The inner side wall of the box body (101) is evenly provided with a plurality of U-shaped grooves (108), and the U-shaped plates (109) are slidably fitted inside the U-shaped grooves (108).

6. The exhaust gas pre-treatment device for easy filter replacement according to claim 5, characterized in that: Guide plates (111) are installed on both sides of the U-shaped plate (109), and the guide plates (111) are slidably fitted inside the U-shaped groove (108). Two second springs (112) are installed inside the U-shaped groove (108), and one end of the second spring (112) is attached to one side of the guide plate (111).

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