Suction tool for catalyst production

Abstract

The utility model belongs to the technical field of catalyst preparation, and particularly relates to a suction tool for catalyst production. The suction tool is of a cutting integrated structure and comprises a sleeve and an annular support, the annular support is arranged at the top of the sleeve, the inner diameter of the annular support is the same as that of the sleeve, a first groove and a second groove are sequentially formed in the upper end face of the annular support from outside to inside, and the inner diameter of the second groove is the same as that of the sleeve. The outer diameter of the second groove is smaller than the inner diameter of the first groove, the outer diameter of the first groove is smaller than the outer diameter of the annular support, and the circle centers of the sleeve, the annular support, the first groove and the second groove are located on the same straight line. The suction tool disclosed by the utility model has the characteristics of simple structure, high strength and capability of effectively reducing the loss of the corrugated pipe and protecting the completeness of a carrier, and can be widely applied to the fields of catalyst production and other industrial production.

Description

Technical Field

[0001] The utility model belongs to the technical field of catalyst preparation, and in particular relates to a suction tool for catalyst production. Background Art

[0002] With the rapid increase in the number of cars in the world, automobile exhaust emissions have become one of the important sources of urban air pollution, especially harmful substances such as carbon monoxide (CO), hydrocarbons (HC) and nitrogen oxides (NOx). They not only pose a threat to human health, but also cause environmental problems such as acid rain and photochemical smog.

[0003] To solve this problem, exhaust catalytic conversion technology came into being. The core of this technology lies in the use of exhaust catalytic converters, which are usually installed in the exhaust system of automobiles. The catalytic converter contains precious metal catalysts such as platinum (Pt), palladium (Pd) and rhodium (Rh). These catalysts can accelerate the chemical reactions of harmful gases in the exhaust without being consumed. Specifically, they promote the oxidation of carbon monoxide into harmless carbon dioxide, hydrocarbons into carbon dioxide and water, and nitrogen oxides into nitrogen and oxygen. The impact of these final products on the environment is greatly reduced.

[0004] The catalyst production methods mainly include impregnation, spraying, casting, quantitative method, etc., among which the impregnation method is to immerse the carrier in the prepared slurry to ensure that the surface of the carrier is evenly covered with the catalyst slurry, and then remove the excess slurry by draining or rotating; the spraying method uses a spraying device to evenly spray the slurry on the surface of the carrier, and the thickness and uniformity of the coating are controlled by adjusting the pressure and moving speed of the spray gun; the casting method is suitable for sheet or strip carriers, and the slurry is continuously coated on the carrier to form a uniform coating; the quantitative method, the quantitative coating method refers to the technology of achieving efficient and uniform coating on the carrier material by precisely controlling the amount and distribution of the catalyst active components during the catalyst preparation process. This method is particularly suitable for the preparation of catalysts that require precise control of the density and distribution of catalytic active sites. It has excellent characteristics such as precise control, uniform distribution, and customizable design. The most important coating suction link is that the carrier is prone to displacement and damage during the suction process.

[0005] A Chinese patent with patent number CN117146089B describes a bellows expansion joint and its bellows, including an expansion joint group and an expansion joint body. When the expansion joint is subjected to increased pressure and increased temperature, the changes in pressure and temperature will cause the angle inside the expansion joint body to increase, that is, the expansion joint assembly begins to expand. Although the joint has a simple structure, low cost, and can realize the up and down movement and deformation of the suction part, the lateral deformation is too large, resulting in the displacement of the catalyst damage position. In addition, a Chinese patent with patent number CN116293112B describes a high-strength metal bellows, including a bellows body, a flange, an internal reinforcement component and an external reinforcement component, which enhances the pressure resistance of the bellows body and can also reinforce and support multiple welds from both the inside and outside sides at the same time, thereby improving the compressive strength of the welds and preventing fluid from leaking from the welds under a high-pressure working environment to a certain extent. However, the tooling processing cost is high, the overall structure cannot be moved up and down, and internal damage is difficult to detect. The utility model can realize the up and down movement of the suction structure without changing the original suction bellows structure, and has the characteristics of simple structure, low cost, and high lateral compressive strength. Summary of the invention

[0006] The purpose of the utility model is to overcome the deficiencies existing in the prior art and to provide a suction tool for catalyst production and a method for suctioning catalyst carrier slurry. The suction tool for catalyst production of the utility model is used in a suction station, installed above the bellows of the suction station, fixed with a clamp, the upper end is in contact with the clamping carrier mold, and the gap is sealed with a rubber ring. During the suction operation, the bellows shrinks inward due to negative pressure and contacts with the metal sleeve of the tool, which greatly reduces the deformation of the bellows and avoids displacement and damage of the carrier. The tool has the characteristics of simple structure, high strength, and can effectively reduce the loss of the bellows and protect the integrity of the carrier. It can be widely used in catalyst production and other industrial production fields.

[0007] In order to solve the deficiencies of the prior art, the utility model adopts the following technical solutions:

[0008] A suction tool for catalyst production, the suction tool is a cutting integrated structure, including a sleeve and an annular bracket, the annular bracket is arranged on the top of the sleeve, the inner diameter of the annular bracket is the same as the inner diameter of the sleeve, the upper end surface of the annular bracket is sequentially provided with a first groove and a second groove from the outside to the inside, the inner diameter of the second groove is the same as the inner diameter of the sleeve, the outer diameter of the second groove is smaller than the inner diameter of the first groove, the outer diameter of the first groove is smaller than the outer diameter of the annular bracket, and the centers of the sleeve, the annular bracket, the first groove and the second groove are located on the same straight line.

[0009] Furthermore, the suction tooling is made of 316 stainless steel or aluminum alloy.

[0010] Furthermore, the sleeve is a cylindrical body with upper and lower openings, a bellows is provided on the outer periphery of the sleeve, and the upper end of the bellows is fixedly connected to the top of the sleeve via a clamp.

[0011] Furthermore, the dimensions of the sleeve are: inner diameter 30~400mm, outer diameter 50~500mm, thickness 3~50mm, height 50~500mm.

[0012] Furthermore, the dimensions of the annular bracket are: inner diameter 40~500mm, outer diameter 60~600mm, thickness 3~100mm, height 5~100mm.

[0013] Furthermore, the dimensions of the first groove are: inner diameter 50-200 mm, outer diameter 50-300 mm, depth 3-50 mm, and a semicircular, sector-shaped or rectangular cross-section.

[0014] Furthermore, the dimensions of the second groove are: inner diameter 40-500 mm, outer diameter 60-600 mm, depth 5-50 mm, and a cross-section of a rectangle, trapezoid or triangle.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The suction tool provided by the utility model can effectively solve the problems of carrier deviation and damage in the quantitative coating suction process. The suction tool of the utility model has the characteristics of simple structure, easy processing, low cost, easy installation, and rich product types and sizes.

[0017] The utility model can realize the up and down movement of the suction structure without changing the original suction bellows structure, and has the characteristics of simple structure, low cost, high lateral compressive strength, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of a suction tool used in the catalyst production process of the utility model.

[0019] Figure 2 It is a top view of the suction tool used in the catalyst production process of the utility model.

[0020] Figure 3 A schematic diagram of the installation and use of a suction tool used in a catalyst production process according to the utility model.

[0021] Explanation of the reference numerals: 1 - first groove; 2 - second groove; 3 - sleeve; 4 - air seal; 5 - clamping bracket; 6 - rubber ring; 7 - bellows; 8 - protrusion; 9 - annular bracket; 10 - clamping hoop; 11 - coated carrier. DETAILED DESCRIPTION

[0022] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "inside, outside", "up, down", "left, right", etc. are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] Example 1

[0025] like Figure 1 and 2 As shown, a suction tool for catalyst production, the suction tool is a cutting integrated structure, including a sleeve 3 and an annular bracket 9, the annular bracket 9 is arranged on the top of the sleeve 3, the inner diameter of the annular bracket 9 is the same as the inner diameter of the sleeve 3, the upper end surface of the annular bracket 9 is sequentially provided with a first groove 1 and a second groove 2 from the outside to the inside, the inner diameter of the second groove 2 is the same as the inner diameter of the sleeve 3, the outer diameter of the second groove 2 is smaller than the inner diameter of the first groove 1, the outer diameter of the first groove 1 is smaller than the outer diameter of the annular bracket 9, and the centers of the sleeve 3, the annular bracket 9, the first groove 1 and the second groove 2 are located on the same straight line.

[0026] The suction tool is made of 316 stainless steel.

[0027] The sleeve 3 is a cylindrical body with openings at the top and the bottom. A bellows 7 is arranged on the outer periphery of the sleeve 3 . The upper end of the bellows 7 is fixedly connected to the top of the sleeve 3 via a clamp 10 .

[0028] The dimensions of the sleeve 3 are: inner diameter 200 mm, outer diameter 250 mm, thickness 3 mm, height 300 mm.

[0029] The dimensions of the annular support 9 are: inner diameter 200 mm, outer diameter 280 mm, thickness 50 mm, height 60 mm.

[0030] The dimensions of the first groove 1 are: inner diameter 210 mm, outer diameter 215 mm, depth 5 mm, and semicircular cross section.

[0031] The dimensions of the second groove 2 are: inner diameter 200 mm, outer diameter 205 mm, depth 5 mm, and rectangular cross section.

[0032] Example 2

[0033] like Figure 1 and 2 As shown, a suction tool for catalyst production, the suction tool is a cutting integrated structure, including a sleeve 3 and an annular bracket 9, the annular bracket 9 is arranged on the top of the sleeve 3, the inner diameter of the annular bracket 9 is the same as the inner diameter of the sleeve 3, the upper end surface of the annular bracket 9 is sequentially provided with a first groove 1 and a second groove 2 from the outside to the inside, the inner diameter of the second groove 2 is the same as the inner diameter of the sleeve 3, the outer diameter of the second groove 2 is smaller than the inner diameter of the first groove 1, the outer diameter of the first groove 1 is smaller than the outer diameter of the annular bracket 9, and the centers of the sleeve 3, the annular bracket 9, the first groove 1 and the second groove 2 are located on the same straight line.

[0034] The suction tool is made of 316 stainless steel.

[0035] The sleeve 3 is a cylindrical body with openings at the top and the bottom. A bellows 7 is arranged on the outer periphery of the sleeve 3 . The upper end of the bellows 7 is fixedly connected to the top of the sleeve 3 via a clamp 10 .

[0036] The dimensions of the sleeve 3 are: inner diameter 180 mm, outer diameter 300 mm, thickness 5 mm, height 400 mm.

[0037] The dimensions of the annular support 9 are: inner diameter 180 mm, outer diameter 360 mm, thickness 60 mm, height 50 mm.

[0038] The dimensions of the first groove 1 are: inner diameter 230 mm, outer diameter 240 mm, depth 7 mm, and semicircular cross section.

[0039] The dimensions of the second groove 2 are: inner diameter 180 mm, outer diameter 225 mm, depth 20 mm, and rectangular cross section.

[0040] Example 3

[0041] like Figure 1 and 2 As shown, a suction tool for catalyst production, the suction tool is a cutting integrated structure, including a sleeve 3 and an annular bracket 9, the annular bracket 9 is arranged on the top of the sleeve 3, the inner diameter of the annular bracket 9 is the same as the inner diameter of the sleeve 3, the upper end surface of the annular bracket 9 is sequentially provided with a first groove 1 and a second groove 2 from the outside to the inside, the inner diameter of the second groove 2 is the same as the inner diameter of the sleeve 3, the outer diameter of the second groove 2 is smaller than the inner diameter of the first groove 1, the outer diameter of the first groove 1 is smaller than the outer diameter of the annular bracket 9, and the centers of the sleeve 3, the annular bracket 9, the first groove 1 and the second groove 2 are located on the same straight line.

[0042] The suction tool is made of 316 stainless steel.

[0043] The sleeve 3 is a cylindrical body with openings at the top and the bottom. A bellows 7 is arranged on the outer periphery of the sleeve 3 . The upper end of the bellows 7 is fixedly connected to the top of the sleeve 3 via a clamp 10 .

[0044] The dimensions of the sleeve 3 are: inner diameter 150 mm, outer diameter 300 mm, thickness 5 mm, height 400 mm.

[0045] The dimensions of the annular support 9 are: inner diameter 150 mm, outer diameter 400 mm, thickness 100 mm, height 50 mm.

[0046] The dimensions of the first groove 1 are: inner diameter 370 mm, outer diameter 380 mm, depth 10 mm, and rectangular cross section.

[0047] The dimensions of the second groove 2 are: inner diameter 150 mm, outer diameter 250 mm, depth 15 mm, and rectangular cross section.

[0048] The catalyst carrier slurry is sucked by the above-mentioned suction tool, comprising the following steps:

[0049] Step S1, before the suction station starts working, Figure 3 As shown, the sleeve 3 is placed in the suction bellows 7, the suction bellows 7 and the top of the sleeve 3 are connected and fixed by a clamp 10, and a rubber ring 6 is installed in the first groove 1;

[0050] Step S2, vertically placing the coated carrier 11 into the uninflated air seal 4, the lower end surface of the coated carrier 11 partially overlaps with the bellows 7 in the vertical direction, the air seal 4 is inflated to clamp the coated carrier 11, and the bellows 7 rises together with the sleeve 3 under the action of external force until the lower end surface of the clamping bracket 5 is tightly fitted with the rubber ring 6, and the protrusion 8 located on the lower end surface of the clamping bracket 5 is tightly fitted with the second groove 2;

[0051] Step S3, the equipment performs negative pressure suction at a pressure of -5~-80 kPa, and the airflow passes from the upper end surface of the coated carrier 11, through the coated carrier 11, to the lower end surface of the coated carrier 11, and most of the airflow flows downward along the sleeve 3. The vacuum effect causes the suction bellows 7 to deform inward and contact with the sleeve 3. The deformation ends with a small amplitude and cannot directly contact the coated carrier 11;

[0052] Step S4, the suction action of the equipment ends, the bellows 7 recovers its deformation and moves downward, and the coated carrier 11 is transferred to the next station.

[0053] Further, the coated carrier 3 has a diameter of 90 to 350 mm and a height of 50 to 300 mm;

[0054] In step S1, the width of the clamp 10 is 2-20 mm, and the inner diameter of the rubber ring 6 is 3-20 mm.

[0055] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to examples, ordinary technicians in the 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 suction tool for catalyst production, characterized in that: The suction tool is a cutting integrated structure, comprising a sleeve (3) and an annular bracket (9), wherein the annular bracket (9) is arranged at the top of the sleeve (3), the inner diameter of the annular bracket (9) is the same as the inner diameter of the sleeve (3), and the upper end surface of the annular bracket (9) is provided with a first groove (1) and a second groove (2) in sequence from the outside to the inside, the inner diameter of the second groove (2) is the same as the inner diameter of the sleeve (3), the outer diameter of the second groove (2) is smaller than the inner diameter of the first groove (1), the outer diameter of the first groove (1) is smaller than the outer diameter of the annular bracket (9), and the centers of the sleeve (3), the annular bracket (9), the first groove (1) and the second groove (2) are located on the same straight line.

2. The suction tool for catalyst production according to claim 1, characterized in that: The suction tool is made of 316 stainless steel or aluminum alloy.

3. The suction tool for catalyst production according to claim 1, characterized in that: The sleeve (3) is a cylindrical body with openings at the top and the bottom. A bellows (7) is provided on the outer periphery of the sleeve (3). The upper end of the bellows (7) is fixedly connected to the top of the sleeve (3) via a clamp (10).

4. The suction tool for catalyst production according to claim 1, characterized in that: The dimensions of the sleeve (3) are: inner diameter 30-400 mm, outer diameter 50-500 mm, thickness 3-50 mm, and height 50-500 mm.

5. The suction tool for catalyst production according to claim 1, characterized in that: The dimensions of the annular bracket (9) are: inner diameter 40-500 mm, outer diameter 60-600 mm, thickness 3-100 mm, and height 5-100 mm.

6. The suction tool for catalyst production according to claim 1, characterized in that: The dimensions of the first groove (1) are: inner diameter 50-200 mm, outer diameter 50-300 mm, depth 3-50 mm, and a semicircular, sector-shaped or rectangular cross-section.

7. The suction tool for catalyst production according to claim 1, characterized in that: The dimensions of the second groove (2) are: inner diameter 40-500 mm, outer diameter 60-600 mm, depth 5-50 mm, and a cross-section that is rectangular, trapezoidal, or triangular.

Images