An apparatus for coating a catalyst support with a catalyst.

Abstract

This utility model discloses a device for coating a catalyst carrier with catalyst, including a shell, a cylindrical tank fixedly installed on the left side of the top surface of the shell, a conduit fixedly connected to the side wall of the cylindrical tank, a receiving hopper connected through the end of the conduit away from the cylindrical tank, and a negative pressure suction pump fixedly connected to the conduit. The receiving hopper is fixedly connected to the inner cavity of the shell, and a vertical pipe fixedly connected to the bottom surface of the cylindrical tank. A drain valve is fixedly connected to the vertical pipe at the lower side of the cylindrical tank, and a receiving bucket is set below the drain valve. First, the corresponding flange mold is changed according to the shape and size of the carrier to be coated. After the carrier to be coated is placed on the flange mold, the catalyst pipeline injects the catalyst to cover the entire carrier. Then, a catalyst cap is placed on the flange carrier mold (when suctioning excess slurry on the carrier, the cap forms a sealed space). After the carrier is coated, the excess slurry flows down through the cylindrical tank and is collected in the receiving bucket through the drain valve.

Description

Technical Field

[0001] This utility model relates to the field of coating device technology, specifically a device for coating a catalyst carrier with a catalyst. Background Technology

[0002] With the acceleration of industrialization and increasingly stringent environmental regulations, enterprises are facing ever-higher requirements for controlling nitrogen oxide (NOx) emissions. As a core component of denitrification equipment, the coating quality of the catalyst directly affects the working efficiency and energy-saving effect of the denitrification unit.

[0003] Traditionally, catalyst coating operations are mostly carried out manually. In actual coating processes, manual coating is not only inefficient, but also results in uneven coating effects due to differences in operator skill levels, affecting the catalyst's activity and lifespan. Furthermore, manual coating inevitably leads to the waste of catalyst raw materials, thereby increasing production costs and impacting the environment, which is detrimental to its use.

[0004] Based on the above reasons, this utility model proposes a device for coating a catalyst carrier with a catalyst. By vacuuming out excess catalyst, the uniformity and efficiency of the coating are improved, and the impact on the environment and operators is reduced. Utility Model Content

[0005] In view of the above-mentioned shortcomings in the existing technology, the purpose of this utility model is to provide a device for coating a catalyst carrier with a catalyst, which has the advantages of uniform catalyst coating and high efficiency.

[0006] The technical solution adopted by this utility model to achieve the above-mentioned objective is as follows: a device for coating a catalyst carrier with a catalyst, comprising a shell, a cylindrical tank fixedly installed on the left side of the top surface of the shell, a conduit fixedly connected to the side wall of the cylindrical tank, a receiving hopper connected through the end of the conduit away from the cylindrical tank, and a negative pressure suction pump fixedly connected to the conduit, the receiving hopper being fixedly connected to the inner cavity of the shell, a vertical pipe fixedly connected to the bottom surface of the cylindrical tank, a drain valve fixedly connected to the vertical pipe at the lower side of the cylindrical tank, a receiving bucket being provided below the drain valve, and a round pipe fixedly connected to the rear side wall of the cylindrical tank, the round pipe penetrating the rear side wall of the shell.

[0007] In the above technical solution, the receiving bin includes a bin body, and a number of partitions are fixedly connected inside the bin body. Each partition has a through groove, and the through grooves on two adjacent partitions are staggered. A bin door is installed on the front side wall of the bin body.

[0008] In the above technical solution, a flange is fixedly connected to the top surface of the outer shell at the cylindrical tank, the flange is concentric with the cylindrical tank and fixedly connected, and a catalyst cap is provided on the top of the outer shell.

[0009] In the above technical solution, a wire mesh is fixedly installed inside the circular tube, and the wire mesh is filled with filter material.

[0010] In the above technical solution, two door panels are fixedly connected to the front side wall of the outer casing, and control buttons are installed on the top surface of the outer casing.

[0011] In the above technical solution, the drain valve is a pneumatic butterfly valve, which is fixedly installed to the vertical pipe by clamps.

[0012] The beneficial effects of this invention are as follows: During the coating operation, the upper part of the device is equipped with a catalyst spraying pipe for adding the catalyst into the device; the carrier is square or round with a honeycomb-like internal structure; the flange 10 position is the carrier mold, which can be replaced with square, round, and corresponding sizes depending on the shape of the carrier. When coating the carrier, it is necessary to coat the entire carrier, including both the inside and outside, as well as the honeycomb pores. This allows for the removal of excess catalyst through vacuum, improving the uniformity and efficiency of the coating, reducing the impact on the environment and operators, and enabling effective and thorough coating of the carrier, thus improving the coating efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0014] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the outer shell of this utility model;

[0015] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the cylindrical tank of this utility model;

[0016] Figure 4 This is a three-dimensional structural diagram of the coating chamber of this utility model;

[0017] Figure 5 This is a three-dimensional structural diagram of the catalyst cap of this utility model.

[0018] In the diagram: 1. Outer shell; 2. Tank; 3. Conduit; 4. Coating chamber; 5. Drain valve; 6. Vertical pipe; 7. Chamber body; 8. Partition; 9. Through groove; 10. Flange; 11. Door panel; 12. Control button; 13. Round pipe; 14. Wire mesh; 15. Negative pressure suction pump; 16. Receiving bucket; 17. Catalyst cap. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-5 A device for coating a catalyst carrier with a catalyst includes an outer shell 1. A cylindrical tank 2 is fixedly installed on the left side of the top surface of the outer shell 1. A conduit 3 is fixedly connected to the side wall of the cylindrical tank 2. A receiving bin 4 is connected through the end of the conduit 3 away from the cylindrical tank 2. A negative pressure suction pump 15 is fixedly connected to the conduit 3. The receiving bin 4 is fixedly connected to the inner cavity of the outer shell 1. A vertical pipe 6 is fixedly connected to the bottom surface of the cylindrical tank 2. A drain valve 5 is fixedly connected to the vertical pipe 6 at the lower side of the cylindrical tank 2. A receiving bucket 16 is set below the drain valve 5. A round pipe 13 is fixedly connected to the rear side wall of the cylindrical tank 2. The round pipe 13 penetrates the rear side wall of the outer shell 1. The receiving bin 4 includes a bin body 7. Several partitions 8 are fixedly connected inside the bin body 7. Each partition 8 has a through groove 9. The through grooves 9 on two adjacent partitions 8 are staggered. A bin door is installed on the front side wall of the bin body 7.

[0021] It can achieve complete impregnation and coating of catalyst support, and can make the catalyst uniformly coated on the surface of the support. The coating operation is highly efficient and has good uniformity.

[0022] Furthermore, a flange 10 is fixedly connected to the top surface of the outer shell 1 at the location of the cylindrical tank 2. The flange 10 is concentric with the cylindrical tank 2 and is fixedly connected. A catalyst cap 17 is provided on the top of the outer shell 1. A wire mesh 14 is fixedly installed inside the round tube 13, and the wire mesh 14 is filled with filter material.

[0023] This allows for the removal of excess catalyst through vacuum, improving the uniformity and efficiency of coating, reducing the impact on the environment and operators, and enabling effective and thorough coating of the carrier, thus improving its coating efficiency.

[0024] Two door panels 11 are fixedly connected to the front side wall of the outer casing 1. A control button 12 is installed on the top surface of the outer casing 1. The drain valve 5 is a pneumatic butterfly valve, which is fixedly installed to the vertical pipe 6 by clamps.

[0025] In this embodiment, the filter material is fixed by the wire mesh 14, which can achieve the filtration of the catalyst slurry and improve the coating effect. The wire mesh 14 is fixed and installed by the pipe clamp and the double-ended external wire tube, which can facilitate the use and replacement of the filter material.

[0026] Working principle: First, the corresponding flange 10 mold is replaced according to the shape and size of the carrier to be coated (the mold space is larger than the carrier, and after the carrier is placed, there is a 0.5cm gap between the carrier and the mold). After the carrier to be coated is placed on the flange 10 mold, the catalyst pipeline injects the catalyst to cover the entire carrier. Then, the catalyst cap 17 is placed on the flange 10 carrier mold (the cap forms a sealed space when suctioning excess slurry on the carrier). After the carrier is coated, the excess slurry flows down through the cylinder 2 and is collected into the collection bucket 16 through the drain valve 5. The collection bucket 16 is placed below the drain valve 5. Then, the negative pressure suction pump 15 is started to recover the excess slurry attached to the carrier into the collection bin 7 through the suction valve 15. Because the slurry is sprayed during the negative pressure suction process, the collection bin 7 is equipped with partitions 8 and 9 through grooves to buffer the sprayed slurry. At the same time, the slurry is relatively viscous and is distributed on the three layers of partitions 8, which facilitates manual recovery with a scraper. The switch in the diagram controls the opening and closing of the negative pressure suction pump.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An apparatus for coating a catalyst carrier with a catalyst, comprising a housing (1), characterized in that: A cylindrical tank (2) is fixedly installed on the left side of the top surface of the outer shell (1). A conduit (3) is fixedly connected to the side wall of the cylindrical tank (2). A receiving bin (4) is connected through the end of the conduit (3) away from the cylindrical tank (2). A negative pressure suction pump (15) is fixedly connected to the conduit (3). The receiving bin (4) is fixedly connected to the inner cavity of the outer shell (1). A vertical pipe (6) is fixedly connected to the bottom surface of the cylindrical tank (2). A drain valve (5) is fixedly connected to the vertical pipe (6) at the lower side of the cylindrical tank (2). A receiving bucket (16) is set below the drain valve (5). A round pipe (13) is fixedly connected to the rear side wall of the cylindrical tank (2). The round pipe (13) is set through the rear side wall of the outer shell (1).

2. An apparatus for coating a catalyst support with a catalyst according to claim 1, characterized in that: The receiving bin (4) includes a bin body (7), and several partitions (8) are fixedly connected inside the bin body (7). Each partition (8) has a through groove (9), and the through grooves (9) on two adjacent partitions (8) are staggered. A bin door is installed on the front side wall of the bin body (7).

3. An apparatus for coating a catalyst support with a catalyst according to claim 2, characterized in that: The top surface of the outer shell (1) is fixedly connected to the cylindrical tank (2) with a flange (10). The flange (10) is concentric with the cylindrical tank (2) and fixedly connected. A catalyst cap (17) is provided on the top of the outer shell (1).

4. The apparatus for coating a catalyst support with a catalyst according to claim 1, characterized in that: A wire mesh (14) is fixedly installed inside the round tube (13), and the wire mesh (14) is filled with filter material.

5. An apparatus for coating a catalyst support with a catalyst as defined in claim 1, characterized in that: Two door panels (11) are fixedly connected to the front side wall of the outer shell (1), and a control button (12) is installed on the top surface of the outer shell (1).

6. An apparatus for coating a catalyst support with a catalyst as defined in claim 1, characterized in that: The drain valve (5) is a pneumatic butterfly valve, which is fixedly installed to the vertical pipe (6) by means of a clamp.

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