Waste gas treater

Abstract

The utility model discloses a waste gas treatment device which comprises a treatment main machine (1) and an air inlet pipe (2), and is characterized in that a front filter box (3) is mounted at an air inlet of the air inlet pipe (2) and can filter particles with the particle size of more than 5 microns in waste gas; and a filter screen plate (4) is arranged in the front filter box (3) and adopts a stainless steel screen. According to the utility model, the front filter box is additionally arranged at the front part of the air inlet of the existing waste gas treater, and the filter screen plate made of at least one layer of stainless steel wire mesh is arranged in the front filter box, so that several layers can be selected according to actual conditions for preliminarily filtering water vapor and oil mist in waste gas, and the treatment load of a treatment host is reduced; the service time of the processing host is prolonged and the maintenance frequency is reduced.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to the treatment of waste gas containing oily wastewater vapor, specifically a waste gas processor. Background Technology

[0002] When existing exhaust gas processors handle scenarios with a lot of water vapor and oil mist, the oil mist accumulates in the main unit, resulting in a short service life for the main unit and requiring frequent maintenance and cleaning. Utility Model Content

[0003] The purpose of this invention is to address the problems existing in the prior art by providing an exhaust gas processor.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] An exhaust gas processor includes a processing host and an air inlet pipe, characterized in that: a pre-filter box is installed at the air inlet of the air inlet pipe, which is capable of filtering particles larger than 5μm in the exhaust gas.

[0006] The pre-filter box is equipped with a filter screen, which is made of stainless steel wire mesh.

[0007] The diameter of the stainless steel wire mesh is Φ0.2~0.3mm.

[0008] The inner cavity of the pre-filter box is provided with a groove for embedding a filter screen, and the opening side of the groove is closed with a cover plate.

[0009] The groove is a side-opening structure, and the filter screen is horizontally inserted into the groove from the side of the pre-filter box.

[0010] The pre-filter box has 2 to 4 slots arranged in its inner cavity, and each slot can be used to embed a filter screen.

[0011] The cover plate is fixed to the body of the pre-filter box and can press and fix the filter screen plate from the side.

[0012] The pre-filter box is sealed and fixedly connected to the air inlet of the air inlet pipe via a connecting flange.

[0013] This invention has the following advantages over the prior art:

[0014] This invention adds a pre-filter box to the front of the air inlet of an existing exhaust gas processor. The pre-filter box contains at least one layer of stainless steel wire mesh filter plate, and the number of layers can be selected according to the actual situation. It is used to pre-filter water vapor and oil mist in the exhaust gas, reduce the processing load of the main unit, extend the service life of the main unit, and reduce the number of maintenance. Attached Figure Description

[0015] Appendix Figure 1 A schematic diagram of the structure of the exhaust gas processor provided by this utility model;

[0016] Appendix Figure 2 This is a cross-sectional view of the pre-filter box provided by this utility model.

[0017] Wherein: 1—Processing unit; 2—Air inlet duct; 3—Pre-filter box; 4—Filter screen; 5—Connecting flange; 6—Inset groove; 7—Cover plate. Detailed Implementation

[0018] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0019] The terms “a,” “one,” “the,” and “the” are used to indicate the existence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended meaning of inclusion and that other elements / components / etc. may exist in addition to the listed elements / components / etc.

[0020] like Figure 1-2 As shown: A waste gas processor includes a main unit 1 and an air inlet pipe 2. A pre-filter box 3 is installed at the air inlet of the air inlet pipe 2. The pre-filter box 3 is sealed and fixedly connected to the air inlet of the air inlet pipe 2 via a connecting flange 5. The pre-filter box 3 can filter particles larger than 5μm in the waste gas. In the above components, the main unit 1 is the main body, the air inlet pipe 2 is used to connect the pre-filter box 3, and the pre-filter box 3 is used to install the filter screen 4 that performs the filtering function. The filtration principle of the pre-filter box 3 includes mechanical screening and surface filtration. Mechanical screening: when the waste gas passes through the wire mesh, particles larger than the mesh openings are intercepted on the surface, which conforms to Darcy's law (pressure difference drives fluid through porous media); surface filtration: particles accumulate on the mesh surface to form a "filter cake", which further assists in filtering small particles (regular cleaning is required to prevent clogging).

[0021] like Figure 2 As shown, a filter screen 4 is arranged in the pre-filter box 3 to filter out large particles of oil mist in the exhaust gas. The filter screen 4 is made of stainless steel wire mesh with a wire diameter of Φ0.2~0.3mm. The stainless steel wire mesh is woven using an improved method of traditional knitting.

[0022] To facilitate the installation of the filter screen 4, a groove 6 for embedding the filter screen 4 is arranged in the inner cavity of the pre-filter box 3, and the opening side of the groove 6 is closed by a cover plate 7. Since the filter screen 4 can be installed from the front, back, left, right, up, and down directions of the pre-filter box 3, but considering the convenience of installation and the interference between multiple filter screens 4, the groove 6 has a side-opening structure. The filter screen 4 is inserted horizontally into the groove 6 from the side of the pre-filter box 3, and the cover plate 7 is fixed to the box body of the pre-filter box 3 and can press and fix the filter screen 4 from the side.

[0023] To improve filtration efficiency, 2 to 4 slots 6 are arranged in the inner cavity of the pre-filter box 3. Each slot 6 can be fitted with a filter screen plate 4. When multiple filter screen plates 4 are installed, the spacing between adjacent filter screen plates 4 is 1 / 4 to 1 / 10 of the thickness of a single filter screen plate 4.

[0024] like Figure 1-2 As shown, when assembling the exhaust gas processor of this utility model, firstly, the two sets of pre-filter boxes 3 are respectively installed at the front end of the corresponding air inlet pipe 2 via connecting flanges 5. The integrated pre-filter box 3 and air inlet pipe 2 are connected and fixed to the air inlet of the treatment host 1 with screws. Open the cover plate 7, and select the number of filter screens 4 as needed, such as... Figure 2 The three-layer filter screen 4 shown is inserted into the groove 6 from the side. After the filter screen 4 is installed, it is pressed by the cover plate 7 on the side of the filter box to prevent loosening. The cover plate 7 is fixed to the filter box with screws.

[0025] During use, the exhaust gas first passes through the pre-filter box 3, where the filter screen 4 inside the pre-filter box 3 initially filters out some of the oil mist. Then, it enters the air inlet of the treatment host 1 through the air duct 2. The treatment host 1 further processes other impurities in the exhaust gas. The pre-filter box 3 filters out large particles of oil mist in the exhaust gas. Increasing the pre-filter box 3 can effectively extend the service life of the treatment host 1. The pre-filter box 3 with three layers of filter screen 4 can extend the service life by 18% to 30%.

[0026] In this embodiment of the invention, the term "multiple" refers to two or more, unless otherwise explicitly defined. The terms "install," "connect," and "fix" should be interpreted broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention based on the specific circumstances.

[0027] In the description of the embodiments of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific direction or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0028] In this specification, the terms "an embodiment," "a preferred embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The above embodiments are only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed by this utility model shall fall within the scope of protection of this utility model. Technologies not covered by this utility model can be implemented by existing technologies.

Claims

1. An exhaust gas processor, comprising a processing host (1) and an air inlet pipe (2), characterized in that: A pre-filter box (3) is installed at the air inlet of the air inlet pipe (2), which can filter particles larger than 5μm in the exhaust gas. The pre-filter box (3) is equipped with a filter screen plate (4), which is made of stainless steel wire mesh. The diameter of the stainless steel wire mesh is Φ0.2~0.3mm; The inner cavity of the pre-filter box (3) is provided with a groove (6) for embedding the filter screen plate (4), and the opening side of the groove (6) is closed by a cover plate (7). The groove (6) is a side-opening structure, and the filter screen (4) is inserted horizontally into the groove (6) from the side of the pre-filter box (3).

2. The exhaust gas processor according to claim 1, characterized in that: The inner cavity of the pre-filter box (3) is provided with 2 to 4 slots (6), and each slot (6) can be fitted with a filter screen (4).

3. The exhaust gas processor according to claim 1, characterized in that: The cover plate (7) is fixed on the body of the pre-filter box (3) and the cover plate (7) can press and fix the filter screen plate (4) from the side.

4. The exhaust gas processor according to claim 1, characterized in that: The pre-filter box (3) is sealed and fixedly connected to the air inlet of the air inlet pipe (2) through the connecting flange (5).

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