Impregnation loading device
By impregnating the honeycomb catalyst carrier with an impregnation loading device, the problem of waste of loading liquid in the traditional spraying process is solved, and the uniform distribution of active components and recycling of impregnation liquid are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN HUAMING ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-06-19
AI Technical Summary
Traditional spray loading processes cannot fully cover the pores of honeycomb catalyst carriers, resulting in significant waste of loading liquid.
An impregnation loading device is used to impregnate the catalyst carrier through a combination of mounting components, a housing, pipelines, and a pump. The first pump pumps the impregnation liquid into the pores of the catalyst carrier, and the excess liquid is returned to the housing through a second pipeline, reducing waste.
This method achieves uniform distribution of active components within the pores of the catalyst support and effective recovery of the impregnation solution, reducing waste of the loading solution and improving resource utilization.
Smart Images
Figure CN224371489U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of catalyst equipment technology, and in particular to an impregnation loading device. Background Technology
[0002] Nitrogen oxides (NOx) are among the major air pollutants. The long-term accumulation of large amounts of NOx in the air causes environmental problems such as photochemical pollution, haze, acid rain, and the greenhouse effect, posing significant threats to human health and environmental safety. With increasingly stringent emission standards for air pollutants, the requirement for "ultra-low emissions" presents new challenges to NOx reduction efforts. Selective catalytic reduction (SCR) technology is currently the most effective denitrification technology, and its core component is the catalyst.
[0003] For honeycomb catalyst supports, the traditional loading process, as described in CN115703096A, involves spraying the pores of the honeycomb catalyst support. However, since spraying cannot fully cover the inside of the pores, it requires a long spraying time. The fluidity of the liquid is used to make the loading liquid flow to all parts of the pores. During the spraying process, a large amount of loading liquid is consumed to make the loading liquid flow to all parts of the pores, thus resulting in a large waste of loading liquid. Utility Model Content
[0004] The main purpose of this invention is to provide an impregnation and loading device, which aims to reduce the waste of the loading liquid during the process of distributing the active components in the loading liquid onto the catalyst support.
[0005] To achieve the above objectives, the present invention proposes an impregnation loading device for impregnating a catalyst carrier. The catalyst carrier has multiple through holes extending in a first direction. The impregnation loading device includes: a mounting component, a housing, a first pipeline, a second pipeline, and a first pump body. The mounting component has a cavity and an inlet and an outlet communicating with the cavity. The cavity is used for at least partially installing the catalyst carrier therein. The housing is used to contain the impregnation liquid. The first pipeline connects the inlet and the housing. The second pipeline connects the outlet and the housing. The first pump body is disposed on one of the first pipeline and the second pipeline.
[0006] In one embodiment, the impregnation load device further includes a second pump body, wherein the first pump body is disposed in the first pipeline and the second pump body is disposed in the second pipeline.
[0007] In one embodiment, the impregnation load device further includes a first opening and closing component and a second opening and closing component. The first opening and closing component is disposed in the first pipeline and located between the housing and the first pump body. The first opening and closing component is disposed in the first pipeline and located between the liquid outlet and the second pump body.
[0008] In one embodiment, the mounting member has a bottom in a first direction, the liquid inlet and the liquid outlet are disposed on the bottom, and the impregnation loading device further includes a spacer disposed in the cavity, the side of the spacer opposite to the bottom being used to abut against the catalyst carrier, such that the catalyst carrier is spaced apart from the bottom and a gap is formed between the catalyst carrier and the bottom.
[0009] In one embodiment, the spacer includes a stop block extending in a second direction, one end of which is fixedly disposed on the inner sidewall of the housing in the second direction, and the stop block is spaced apart from the bottom in a first direction.
[0010] In one embodiment, the mounting member has an opening on the side opposite to the bottom, forming a mounting port, which communicates with the cavity and is used for inserting one end of the catalyst carrier.
[0011] In one embodiment, two mounting members are provided, and the two mounting members are respectively inserted and installed at both ends of the catalyst carrier in the first direction.
[0012] In one embodiment, the impregnation load device further includes a seal disposed at the mounting port.
[0013] In one embodiment, the seal includes a sealing ring.
[0014] In one embodiment, the mounting component further includes a main body with an opening at one end. The bottom is detachably mounted at the opening of the main body and together with the main body to form the cavity, which is used to place the catalyst carrier therein.
[0015] The technical solution of this utility model uses a first pump to pump the impregnation liquid inside the tank into the cavity to impregnate the catalyst load. Excess impregnation liquid can be returned to the tank through a second pipeline, thereby avoiding waste of impregnation liquid. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0017] Figure 1 A schematic diagram of the structure of an embodiment of the impregnation load device provided by this utility model;
[0018] Figure 2 A schematic diagram of another embodiment of the impregnation load device provided by this utility model;
[0019] Figure 3 This is a schematic diagram of another embodiment of the impregnation load device provided by this utility model.
[0020] Explanation of icon numbers:
[0021] 100. Impregnation load device; 1. Mounting component; 11. Cavity; 12. Main body; 121. Mounting port; 13. Bottom; 131. Liquid inlet; 132. Liquid outlet; 2. Housing; 3. First pipeline; 4. Second pipeline; 5. First pump body; 6. Second pump body; 7. First opening and closing component; 8. Second opening and closing component; 9. Spacer; 10. Sealing component;
[0022] 200. Catalyst support.
[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0024] 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 scope of protection of the present utility model.
[0025] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0026] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0027] For honeycomb catalyst supports, the traditional loading process, as described in CN115703096A, involves spraying the pores of the honeycomb catalyst support. Since spraying is difficult to fully cover the inside of the pores, it can only be done for a long time. The fluidity of the liquid is used to make the loading liquid flow to all parts of the pores. A large amount of loading liquid is consumed during the spraying process to make the loading liquid flow to all parts of the pores, thus resulting in a large waste of loading liquid.
[0028] This utility model proposes an impregnation load device.
[0029] Please see Figure 1 In one embodiment of this utility model, the impregnation loading device 100 is used to impregnate a catalyst carrier 200. The catalyst carrier 200 has a plurality of through holes in a first direction. The impregnation loading device 100 includes: a mounting component 1, a housing 2, a first pipeline 3, a second pipeline 4, and a first pump body 5. The mounting component 1 has a cavity 11 and an inlet 131 and an outlet 132 communicating with the cavity 11. The cavity 11 is used for at least partially installing the catalyst carrier 200 therein. The housing 2 is used to contain the impregnation liquid. The first pipeline 3 connects the inlet 131 and the housing 2. The second pipeline 4 connects the outlet 132 and the housing 2. The first pump body 5 is disposed on one of the first pipeline 3 and the second pipeline 4.
[0030] The technical solution of this utility model is used for impregnating a honeycomb-shaped catalyst carrier 200, wherein the pores on the catalyst carrier 200 are all interconnected along a first direction. The mounting component 1 has a cavity 11, and at least part of the catalyst carrier 200 is installed within the cavity 11, so that the pores on the catalyst carrier 200 communicate with the cavity 11. A housing 2 is used to contain the impregnation liquid. The impregnation liquid in the housing 2 is filled into the cavity 11 through a first pipeline 3 and a pump, thereby filling the internal pores of the catalyst carrier 200. The porous catalyst carrier 200 is brought into contact with the impregnation liquid containing active components, allowing the active components to penetrate into the pores of the catalyst carrier 200 and be adsorbed on the surface or within the pores. Subsequently, through steps such as drying, calcination, and activation, the active components are stably fixed on the catalyst carrier 200. Compared to spray impregnation, this method can uniformly distribute the active components on the surface of the catalyst carrier 200. After the impregnation process is completed, there will be active components in the impregnation solution that have not adhered to the catalyst carrier 200. In order to recover and make full use of them, the second pipeline 4 is connected to the outlet 132 and the tank 2, so that the excess impregnation solution flows back into the tank 2 for use in the next impregnation process.
[0031] To separate the control of the addition of impregnation liquid into cavity 11 and the return flow to housing 2 by different pumps, the impregnation load device 100 further includes a second pump 6. The first pump 5 is disposed in the first pipeline 3, and the second pump 6 is disposed in the second pipeline 4. The first pump 5 controls the addition of impregnation liquid into cavity 11, and the second pump 6 controls the return flow.
[0032] Since the pump body is located on the pipeline, the flow of the pipeline cannot be controlled. To prevent the impregnation liquid from flowing back to the housing 2 through the second pipeline 4 from the outlet 132 when the first pump body 5 injects impregnation liquid into the cavity 11, and to prevent the impregnation liquid from automatically flowing to the cavity 11 from the first pipeline 3 when collecting the impregnation liquid, it is necessary to install opening and closing components on each pipeline to control the flow of each pipeline. The impregnation load device 100 also includes a first opening and closing component 7 and a second opening and closing component 8. The first opening and closing component 7 is located on the first pipeline 3 and between the housing 2 and the first pump body 5. The first opening and closing component 7 is located on the first pipeline 3 and between the outlet 132 and the second pump body 6.
[0033] In one embodiment, the mounting member 1 has a bottom 13 in a first direction, and the liquid inlet 131 and the liquid outlet 132 are disposed on the bottom 13. If one end of the honeycomb catalyst carrier 200 in the first direction abuts against the bottom 13, the liquid inlet 131 can only communicate with one or a few holes, making it impossible to impregnate the interior of each hole. Moreover, the one or a few holes communicating with the liquid inlet 131 cannot communicate with the liquid outlet 132, resulting in excess impregnation liquid being unrecoverable. Therefore, the impregnation loading device 100 also includes a spacer 9, which is disposed in the cavity 11. The side of the spacer 9 facing away from the bottom 13 is used to abut against the catalyst carrier 200, so that the catalyst carrier 200 is spaced apart from the bottom 13, and a gap is formed between the catalyst carrier 200 and the bottom 13. The gap is connected to the internal pores of each catalyst carrier 200, so that the impregnation liquid flows through the gap through the first pipe 3 and fills the internal pores of the catalyst carrier 200. Finally, the impregnation liquid in the internal pores of the catalyst carrier 200 first flows back to the gap, and then flows back to the box 2 through the second pipe 4.
[0034] Regarding the specific arrangement of the spacer 9, the spacer 9 can be configured as a stop block. The stop block extends along the second direction, and one end of the stop block is fixedly disposed on the inner sidewall of the housing 2 in the second direction. The stop block and the bottom 13 are spaced apart in the first direction. In order to prevent the stop block from blocking the ports of a few holes, multiple through holes in the first direction can be provided on the stop block to avoid the arrangement of the stop block affecting the flow of the impregnating liquid to each hole.
[0035] Regarding the specific structure of mounting component 1, in one type of embodiment (in which the first direction needs to correspond to the vertical direction during use), such as... Figure 1 As shown, for ease of installation, the mounting component 1 has an opening on the side opposite to the bottom 13, forming a mounting port 121. The mounting port 121 communicates with the cavity 11 and is used for inserting one end of the catalyst carrier 200. Impregnation liquid is injected into the cavity 11 until the end face of the impregnation liquid is flush with the upper surface of the catalyst carrier 200 in the first direction, ensuring that all pores of the catalyst carrier 200 are immersed in the impregnation liquid. In this embodiment, the number of mounting components 1 is small, making installation and disassembly convenient.
[0036] In the above embodiments, since it is necessary to impregnate all areas inside the pores, it is essential to ensure that the impregnation liquid end face is flush with the upper end face of the catalyst carrier 200 in the first direction. Therefore, during the injection of the impregnation liquid, some liquid inevitably overflows from the pore opening, or waste occurs due to untimely closure. To prevent this waste, in another type of embodiment, such as... Figure 2As shown, two mounting components 1 are provided, each for insertion into one end of the catalyst carrier 200 in the first direction. The cavities 11 of the two mounting components 1 are connected through the holes in the catalyst carrier 200, forming a sealed cavity. This prevents the impregnation liquid from overflowing and being wasted. Moreover, in this embodiment, the mounting components 1 can be placed arbitrarily after installation with the catalyst carrier 200. There are two liquid inlets 131 and two liquid outlets 132 on the two mounting components 1. To ensure liquid circulation, only one liquid inlet 131 and one liquid outlet 132 are needed; the other liquid inlet 131 and the other liquid outlet 132 can be sealed with plugs.
[0037] In the two embodiments described above, the catalyst carrier 200 is inserted into the cavity 11 of the mounting component 1 at only one end. To ensure the impregnation liquid fills the pores of the catalyst carrier 200, a sealed connection is required between the catalyst carrier 200 and the mounting component 1 during installation to prevent the impregnation liquid from flowing out of the mounting port 121. Therefore, the impregnation loading device 100 further includes a sealing element 10, which is disposed at the mounting port 121. The sealing element 10 can be a sealing rubber ring.
[0038] In order to impregnate the exterior of the catalyst as well, in another type of embodiment, such as Figure 3 As shown, the mounting component 1 also includes a main body 12, with an opening at one end. The bottom 13 is detachably mounted at the opening of the main body 12, forming a cavity 11 with the main body 12. The cavity 11 is used to place the catalyst carrier 200 therein.
[0039] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. An impregnation loading apparatus for impregnation treatment of a catalyst carrier having a plurality of through-holes in a first direction, characterized by, include: The mounting component has a cavity and an inlet and an outlet communicating with the cavity, the cavity being used for at least partially mounting the catalyst carrier therein; The container is used to hold the impregnation solution; The first pipeline connects the liquid inlet and the housing; The second pipeline connects the liquid outlet and the housing; The first pump body is installed on one of the first pipeline and the second pipeline.
2. The impregnation loading apparatus according to claim 1, wherein The impregnation load device further includes a second pump body, wherein the first pump body is disposed in the first pipeline and the second pump body is disposed in the second pipeline.
3. The impregnation loading apparatus according to claim 2, wherein The impregnation load device further includes a first opening and closing component and a second opening and closing component. The first opening and closing component is disposed in the first pipeline and is located between the housing and the first pump body. The first opening and closing component is disposed in the first pipeline and is located between the liquid outlet and the second pump body.
4. The impregnation loading apparatus according to any one of claims 1 to 3, wherein The mounting component has a bottom in a first direction, the liquid inlet and the liquid outlet are disposed on the bottom, the impregnation loading device further includes a spacer, the spacer is disposed in the cavity, and the side of the spacer opposite to the bottom is used to abut against the catalyst carrier, so that the catalyst carrier is spaced apart from the bottom and a gap is formed between the catalyst carrier and the bottom.
5. The impregnation loading apparatus according to claim 4, wherein The spacer includes a stop block that extends along a second direction. One end of the stop block is fixedly disposed on the inner sidewall of the housing in the second direction, and the stop block is spaced apart from the bottom in a first direction.
6. The impregnation loading apparatus according to claim 5, wherein The mounting component has an opening on the side opposite to the bottom, forming a mounting port. The mounting port communicates with the cavity and is used for inserting one end of the catalyst carrier.
7. The impregnation loading apparatus according to claim 6, wherein Two mounting components are provided, and the two mounting components are respectively inserted and installed at both ends of the catalyst carrier in the first direction.
8. The impregnation loading apparatus according to claim 6, wherein The impregnation load device also includes a seal disposed at the mounting port.
9. The impregnation loading apparatus according to claim 8, wherein The sealing element includes a sealing ring.
10. The impregnation loading apparatus of claim 5, wherein The mounting component also includes a main body with an opening at one end. The bottom is detachably mounted at the opening of the main body and together with the main body to form the cavity, which is used to place the catalyst carrier therein.