Air duct filter screen tool for catalyst production

Abstract

The utility model belongs to the technical field of catalyst production, and relates to an air duct filter screen tool for catalyst production, which comprises an annular support as a mounting carrier; the plurality of positioning blocks are uniformly distributed on the annular bracket; the metal net is formed by weaving metal wires in a rhombus mode, the crossed positions are fixed through metal sheets, the annular support is a metal ring, and the inner diameter of the metal ring ranges from 20 mm to 400 mm, the outer diameter of the metal ring ranges from 25 mm to 500 mm, the radial width of the metal ring ranges from 3 mm to 50 mm, and the thickness of the metal ring ranges from 3 mm to 50 mm. The filter screen tool can effectively solve the problems that in the coating and drying process, a carrier falls off or is sucked into a pipeline, the pipeline is blocked or a fan air path is damaged and sucked, and consequently equipment failures, abnormities and the like are caused. In addition, due to the fact that the carrier makes contact with the flexible metal woven mesh, certain buffering exists, damage and scrapping caused by the fact that the carrier sucks or falls to the air duct carrier can be effectively reduced, and cost is saved. The tool has the advantages of being simple in structure, easy to machine, low in cost, easy to install, suitable for various types and sizes of products and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of catalyst production and relates to a wind tube filter tool for catalyst production. Background Art

[0002] The main pollutants emitted by gasoline-powered vehicles include carbon monoxide (CO), hydrocarbons (HC), nitrogen oxides (NOx), particulate matter (PM), sulfur dioxide (SO2), and volatile organic compounds (VOCs). These pollutants not only damage the environment but also pose a serious threat to human health. Furthermore, exhaust emissions exacerbate global warming, as carbon dioxide (CO2) is one of the most prominent greenhouse gases. Furthermore, NOx and VOC emissions contribute to the formation of photochemical smog in cities, damage vegetation, and impact ecosystems.

[0003] Given the serious consequences of automobile exhaust emissions, governments around the world have introduced stricter emission standards. To meet these stringent requirements, automakers are continuously developing new technologies, such as three-way catalytic converters, particulate filters, and selective catalytic reduction systems (SCR), to reduce harmful exhaust emissions. The core of this technology lies in the use of catalytic converters, which are typically installed in the exhaust systems of gasoline-powered vehicles. Catalytic converters contain precious metal catalysts such as platinum (Pt), palladium (Pd), and rhodium (Rh). These catalysts accelerate the chemical reactions of harmful exhaust gases, oxidizing carbon monoxide to harmless carbon dioxide, hydrocarbons to carbon dioxide and water, and nitrogen oxides to nitrogen and oxygen, producing environmentally friendly products.

[0004] Catalyst production methods mainly include spraying, dipping, casting, quantitative methods, etc. Among them, quantitative coating has excellent characteristics such as precise process control, coating uniformity, customizable design, mature production technology, and less waste. In the quantitative coating process, there is a risk of carriers falling or being sucked into the duct at multiple workstations, which leads to long downtime, failure of fans and other supporting equipment, and other abnormalities. By installing and using suitable duct filter tooling, the abnormal falling protection of carriers can be achieved, while ensuring that the wind resistance of the duct pipeline is almost not increased during the production process, and the function of protecting fans and other supporting facilities can be achieved.

[0005] Chinese patent number CN201810164691.7 discloses a sewage well anti-fall net. The invention discloses a sewage well anti-fall net characterized by a circular or square net with 5-centimeter mesh holes woven from nylon rope, with a bearing capacity of approximately 150 Newtons. At least six or more expansion screws are fixed to the well wall 20 centimeters below the sewage well mouth, and the nylon rope anti-fall net is fixed to the expansion screws. This invention has a simple and reasonable structure, easy operation, high safety, and low cost. However, in the catalyst production process, some products weigh more than 15 kg, which still poses a risk of falling and damage. In addition, the airflow in the pipeline exceeds 200°C. Generally, nylon nets have a temperature resistance of 40-120°C. Some special nylon nets, such as aramid, are heat-resistant but costly. The patent uses a metal braided net, which has the characteristics of simple structure, high strength, strong plasticity, high temperature resistance, long service life, and low cost. In addition, compared with expansion screws, the patent uses bolts for more secure and reliable fixing. Summary of the Invention

[0006] To address the aforementioned issues, the present invention provides a filter fixture for a duct used in catalyst production. This filter fixture effectively addresses issues such as carriers falling or being drawn into the duct during the coating and drying process, causing blockage or damage and drawing them into the fan air path, leading to equipment failure and abnormalities. This fixture protects the equipment's effectiveness to a certain extent. Furthermore, the carriers' contact with the flexible metal mesh provides a buffer, effectively reducing damage and scrapping caused by carriers being drawn or dropped into the duct, thereby saving costs. This fixture features a simple structure, ease of processing, low cost, and ease of installation, and is compatible with a wide variety of product sizes.

[0007] According to the technical solution of the utility model: a wind tube filter tool for catalyst production, characterized in that it includes:

[0008] Ring bracket, serving as a mounting carrier;

[0009] Positioning blocks, several positioning blocks are evenly distributed on the annular bracket;

[0010] The metal mesh is formed by diamond-shaped weaving of metal wires, fixed by metal sheets at the intersections, and connected to the annular bracket.

[0011] As a further improvement of the present invention, the annular bracket is a metal ring with dimensions of an inner diameter of 20-400 mm, an outer diameter of 25-500 mm, a radial width of 3-50 mm, and a thickness of 3-50 mm.

[0012] As a further improvement of the present invention, 3 to 7 positioning blocks are evenly distributed and welded on the annular bracket. The fixable surface of the positioning block is perpendicular to the plane of the annular bracket, and a fixing hole with a diameter of 3 to 20 mm is provided on the fixing surface to facilitate fixing the annular bracket in the pipeline.

[0013] As a further improvement of the present invention, the metal mesh is a flexible metal mesh, and the diamond woven structure has a diamond vertex angle of 40 to 90 degrees and a side length of 3 to 50 mm.

[0014] As a further improvement of the present invention, the length of the metal sheet is 5-15 mm, the width is 2-10 mm, and the thickness is 1-5 mm.

[0015] As a further improvement of the present invention, the specification of the metal wire is 7*3, and the diameter of the metal wire is 0.01~2mm.

[0016] The utility model also provides a method for installing and using a duct filter tool, including the above-mentioned duct filter tool for catalyst production, characterized in that it includes the following steps:

[0017] Step S1: Tool selection: select the corresponding specifications of the duct filter tool according to the production pipeline size, with an inner diameter of 20-400mm and an outer diameter of 25-500mm. Confirm the outer dimensions; select the corresponding metal mesh with a diamond side length of 3-50mm and a top angle of 40-90° according to the production product specifications;

[0018] Step S2: Confirm the installation position of the filter tooling. According to the actual pipeline maintenance position, install the air duct filter at a distance of 5 to 500 mm from the pipeline end face. Confirm the number and position of the air duct side wall openings with reference to the position and number of the positioning blocks. Confirm the diameter of the air duct side wall openings with reference to the diameter of the fixing holes on the positioning block fixing surface, which is 3 to 20 mm.

[0019] Step S3: Install the air duct filter by fixing the fixing holes on the inner wall of the air duct using bolts of corresponding size, thereby installing the air duct filter to the upper and lower air ducts;

[0020] Step S4: During the production process, if an abnormal carrier falls or suction abnormality occurs in the upper or lower duct, the carrier contacts the flexible metal mesh upward and then falls to the flexible metal mesh of the lower duct, or directly falls to the flexible metal mesh of the lower duct, effectively protecting the carrier from being broken and sucked into the fan pipeline or getting stuck in the pipeline, causing further losses. After the carrier is missing from the production station, the equipment will alarm and shut down, and the fallen carrier will be removed. After the fault is checked and resolved, normal production will resume.

[0021] The technical effect of the utility model is that the utility model has a wider scope of application, and has strong impact resistance, high temperature resistance, rust resistance and corrosion resistance, and large breaking force. It is widely applicable to potential energy reduction directions such as falling and upper suction modes, and can effectively solve the problem of catalyst damage and scrapping due to abnormal suction or falling into the duct pipeline, as well as the failure and scrapping of fans and corresponding equipment caused by catalyst damage.

[0022] By using this product properly, it can effectively solve the problem of the carrier falling or being sucked into the pipe during the coating and drying process, blocking the pipe or being sucked into the fan air path due to damage, causing equipment failure and abnormality, and to a certain extent protect the effectiveness of the equipment. In addition, the carrier is in contact with the flexible metal woven mesh, which has a certain buffer, which can effectively reduce the damage and scrapping of the carrier when it is sucked or dropped into the wind tube, saving costs. This tool has the characteristics of simple structure, easy processing, low cost, easy installation, and a wide range of applicable product types and sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a top view of the air duct filter tooling used in the catalyst production process of the utility model.

[0024] Figure 2 The utility model is a cross-sectional view of a metal woven mesh of an air duct filter tooling used in a catalyst production process.

[0025] Figure 3 The utility model is a schematic diagram of the weaving of an air duct filter tooling used in the catalyst production process.

[0026] Figure 4 This is a front view of a positioning block for a blower filter tool used in a catalyst production process according to the utility model.

[0027] Explanation of the reference numerals: 1 - metal ring bracket; 2 - flexible metal wire mesh; 3 - fixed metal sheet; 4 - positioning block; 5 - thin metal wire; 6 - diamond-shaped top corner of the metal mesh; 7 - fixing hole. DETAILED DESCRIPTION

[0028] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0029] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts should fall within the scope of protection of the present invention.

[0030] Figure 1-4 It includes a ring bracket 1, a metal mesh 2, a metal sheet 3, a positioning block 4, a metal wire 5, etc.

[0031] like Figure 1-4 As shown, the utility model is a wind tube filter tool for catalyst production, including an annular bracket 1 as a mounting carrier, and a plurality of positioning blocks 4 are evenly distributed on the annular bracket 1.

[0032] The metal mesh 2 is connected to the annular bracket 1. The metal mesh 2 is formed by diamond-shaped weaving of metal wires 5 and is fixed by metal sheets 3 at the intersections. The metal wires 5 are made of 316 or 430 stainless steel.

[0033] The annular support 1 is a metal ring with an inner diameter of 20-400 mm, an outer diameter of 25-500 mm, a radial width of 3-50 mm, and a thickness of 3-50 mm. In specific production, the annular support 1 has an inner diameter of 400 mm, an outer diameter of 500 mm, a radial width of 5 mm, and a thickness of 3 mm.

[0034] Annular bracket 1 is welded with 3 to 7 evenly spaced positioning blocks 4. The fixing surfaces of the positioning blocks 4 are perpendicular to the plane of the annular bracket 1. The fixing surfaces are provided with fixing holes 7 with a diameter of 3 to 20 mm to facilitate the fixing of the annular bracket 1 in the pipeline. To ensure that the annular bracket 1 can be stably and securely fixed, three positioning blocks 4 are evenly spaced on the annular bracket 1. The fixing holes 7 have a diameter of 8 mm to facilitate the fixing of the annular bracket 1 in the pipeline.

[0035] The metal mesh 2 is a flexible metal mesh, and the diamond woven structure has a diamond vertex angle 6 of 40 to 90 degrees and a side length of 3 to 50 mm.

[0036] The metal sheet 3 has a length of 5-15 mm, a width of 2-10 mm, and a thickness of 1-5 mm.

[0037] The specification of the metal wire 5 is 7*3, and the diameter of the metal wire 5 is 0.01~2mm. The diameter of the metal wire is selected to be 0.03mm to meet the use requirements.

[0038] The present invention also provides a method for installing and using a duct filter tool, including the duct filter tool for catalyst production, comprising the following steps:

[0039] Step S1: Tool selection: select the corresponding specifications of the duct filter tool according to the production pipeline size, with an inner diameter of 20-400mm and an outer diameter of 25-500mm. Confirm the outer dimensions; select the corresponding metal mesh with a diamond side length of 3-50mm and a top angle of 40-90° according to the production product specifications;

[0040] Step S2: Confirm the installation position of the filter tooling. According to the actual pipeline maintenance position, install the air duct filter at a distance of 5 to 500 mm from the pipeline end face. Confirm the number and position of the air duct side wall openings with reference to the position and number of the positioning blocks. Confirm the diameter of the air duct side wall openings with reference to the diameter of the fixing holes on the positioning block fixing surface, which is 3 to 20 mm.

[0041] Step S3: Install the air duct filter by fixing the fixing holes on the inner wall of the air duct using bolts of corresponding size, thereby installing the air duct filter to the upper and lower air ducts;

[0042] Step S4: During the production process, if an abnormal carrier falls or suction abnormality occurs in the upper or lower duct, the carrier contacts the flexible metal mesh upward and then falls to the flexible metal mesh of the lower duct, or directly falls to the flexible metal mesh of the lower duct, effectively protecting the carrier from being broken and sucked into the fan pipeline or getting stuck in the pipeline, causing further losses. After the carrier is missing from the production station, the equipment will alarm and shut down, and the fallen carrier will be removed. After the fault is checked and resolved, normal production will resume.

[0043] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to examples, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A wind tube filter tool for catalyst production, characterized in that: include: An annular bracket (1) serving as a mounting carrier; Positioning blocks (4), wherein a plurality of positioning blocks (4) are evenly distributed on the annular bracket (1); The metal mesh (2) is formed by metal wires (5) woven in a diamond shape and fixed at the intersections by metal sheets (3). The metal mesh (2) is connected to the inside of the annular bracket (1).

2. The air duct filter tool for catalyst production according to claim 1, characterized in that: The annular bracket (1) is a metal ring having an inner diameter of 20-400 mm, an outer diameter of 25-500 mm, a radial width of 3-50 mm, and a thickness of 3-50 mm.

3. The air duct filter tool for catalyst production according to claim 1, characterized in that: The annular bracket (1) is welded with 3 to 7 positioning blocks (4) distributed evenly. The fixing surface of the positioning blocks (4) is perpendicular to the plane of the annular bracket (1). The fixing surface is provided with fixing holes (7) with a diameter of 3 to 20 mm, so as to facilitate fixing the annular bracket (1) in the pipeline.

4. The air duct filter tool for catalyst production according to claim 1, characterized in that: The metal mesh (2) is a flexible metal mesh, and the diamond woven structure has a diamond vertex angle (6) of 40 to 90 degrees and a side length of 3 to 50 mm.

5. The air duct filter tool for catalyst production according to claim 1, characterized in that: The metal sheet (3) has a length of 5 to 15 mm, a width of 2 to 10 mm, and a thickness of 1 to 5 mm.

6. The air duct filter tool for catalyst production according to claim 1, characterized in that: The specification of the metal wire (5) is 7*3, and the diameter of the metal wire (5) is 0.01~2mm.

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