Catalyst over-dipping reminder device and reminder method

Abstract

The present application relates to the technical field of catalyst impregnation, and discloses a catalyst excessive impregnation reminding device and a reminding method. The reminding device comprises a circulating pipeline, a detection piece and a reminding piece. The circulating pipeline is used for being connected to a catalyst impregnation equipment, so that an impregnation liquid flows in the circulating pipeline. The detection piece is used for detecting the turbidity degree of the impregnation liquid flowing in the circulating pipeline. When the detection piece detects that the turbidity degree of the impregnation liquid flowing in the circulating pipeline reaches a preset turbidity degree, the reminding piece sends an alarm signal. The reminding device provided by the present application sends an alarm signal when the detection piece detects that the turbidity degree of the impregnation liquid is greater than the preset turbidity degree, so as to remind the staff to perform corresponding operations, avoid the phenomenon of carrier excessive impregnation, and ensure that the performance of the catalyst meets the requirements.

Description

Technical Field

[0001] This invention relates to the field of catalyst impregnation technology, and more specifically to a catalyst over-impregnation reminder device and reminder method. Background Technology

[0002] Over-impregnation refers to the process of immersing the catalyst support in an impregnation solution with a water absorption rate far exceeding that of the support. This process presents the following problems: In continuous industrial production, the wear and tear of catalyst supports varies from batch to batch. However, industrial production typically uses the same impregnation time for all supports, leading to significant powder shedding from some of the more worn supports. This powder shedding reduces the catalyst yield, and the powder's ability to adsorb active components from the impregnation solution is stronger than that of the support, resulting in a low loading rate of active components on the catalyst, further affecting catalyst performance. Therefore, current impregnation processes for supports suffer from over-impregnation, leading to severe powder shedding and impacting catalyst performance. Summary of the Invention

[0003] To address the technical problem of excessive impregnation of the carrier during the current impregnation process, which leads to severe carrier powder shedding and affects catalyst performance, this invention provides a catalyst over-impregnation reminder device and method.

[0004] This invention provides a catalyst over-impregnation reminder device, comprising a circulation pipe, a detection element, and a reminder element. The circulation pipe is connected to a catalyst impregnation device to allow impregnation liquid to flow within it. The detection element is used to detect the turbidity of the impregnation liquid flowing within the circulation pipe and is configured as follows:

[0005] When the detection device detects that the turbidity of the impregnating liquid flowing in the circulation pipe reaches a preset turbidity level, the alarm device issues an alarm signal.

[0006] Optionally, the detection element includes:

[0007] A photosensitive coating is disposed on one side of the circulation pipe, and the portion of the circulation pipe at least where the photosensitive coating is disposed is made of a transparent material;

[0008] A light source is disposed on the side of the circulation pipe opposite to the photosensitive coating, and configured as follows:

[0009] When the light intensity received by the photosensitive coating is lower than the preset light intensity, the alarm device issues an alarm.

[0010] Optionally, the catalyst over-impregnation warning device further includes a mixing component disposed on the circulation pipe, the mixing component being located on the side of the detection element closer to the catalyst impregnation device.

[0011] Optionally, the mixing assembly includes a mixing tank disposed on the circulation pipe, wherein a stirring cylinder is rotatably disposed inside the mixing tank, and a plurality of stirring protrusions are evenly distributed on the outer periphery of the stirring cylinder.

[0012] Optionally, the mixing assembly further includes a drive unit disposed on the top of the mixing chamber, the drive unit being used to drive the stirring drum to rotate.

[0013] Optionally, the bottom cross-section of the mixing tank is inverted conical, and the bottom cross-section of the stirring drum is also inverted conical.

[0014] Optionally, the inlet end of the circulation pipe is connected to multiple branch pipes, and the inlet ends of the multiple branch pipes are respectively used to communicate with multiple outlets on the catalyst impregnation equipment that are arranged at intervals along the vertical direction.

[0015] Optionally, the catalyst over-impregnation warning device further includes a circulation pump disposed between the inlet end of the circulation pipe and the mixing component.

[0016] Optionally, the alert device can emit an audible alarm signal, and / or a light alarm signal, and / or a remote electrical signal.

[0017] The present invention also provides a method for alerting over-impregnation of a catalyst, comprising the following steps:

[0018] A circulation pipe is connected to the impregnation equipment body of the catalyst impregnation equipment so that the impregnation liquid can flow in the circulation pipe;

[0019] The turbidity of the impregnating liquid flowing in the circulation pipe is detected by a testing device.

[0020] When the detection device detects that the turbidity of the impregnating liquid flowing in the circulation pipe reaches a preset turbidity level, the alarm device issues an alarm signal.

[0021] The technical solution provided by the embodiments of the present invention has the following advantages compared with the prior art:

[0022] The reminder device provided by this invention can draw out the impregnation liquid in the catalyst impregnation equipment and detect the turbidity of the impregnation liquid through a detection element. When the carrier is impregnated normally, the carrier begins to shed powder, and the turbidity of the impregnation liquid increases slowly within a certain range. When the carrier shows a tendency to over-impregnate, the shed powder will cause the turbidity of the impregnation liquid to exceed the preset turbidity level. When the detection element detects that the turbidity of the impregnation liquid exceeds the preset turbidity level, the reminder element issues an alarm signal to remind the staff to perform corresponding operations to avoid over-impregnation of the carrier and ensure that the performance of the catalyst meets the requirements. Attached Figure Description

[0023] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the catalyst over-impregnation reminder device under operating conditions according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of the hybrid component according to an embodiment of the present invention;

[0027] Figure 3 This is a top view of the stirring tank according to an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached figures

[0029] 1. Circulation pipe; 11. Branch pipe; 2. Detection component; 21. Photosensitive coating; 22. Light source; 3. Reminder component; 4. Mixing assembly; 41. Mixing tank; 42. Stirring drum; 421. Stirring protrusion; 5. Circulation pump; 6. Impregnation equipment body; 7. Logic circuit. Detailed Implementation

[0030] To better understand the above-mentioned objectives, features, and advantages of the present invention, the solutions of the present invention will be further described below. It should be noted that, unless otherwise specified, the embodiments and features of the present invention can be combined with each other.

[0031] The following description sets forth many specific details in order to provide a full understanding of the invention, but the invention may also be practiced in other ways different from those described herein; obviously, the embodiments described in the specification are only some, not all, of the embodiments of the invention.

[0032] like Figure 1As shown, the catalyst over-impregnation reminder device provided in this embodiment of the invention includes a circulation pipe 1, a detection element 2, and a reminder element 3. The circulation pipe 1 is connected to the catalyst impregnation equipment to allow the impregnation liquid to flow within it. Specifically, the circulation pipe 1 has an inlet end and an outlet end. The catalyst impregnation equipment is provided with an outlet and an inlet, wherein the inlet is located at the top of the catalyst impregnation equipment. The inlet end of the circulation pipe 1 is connected to the outlet of the catalyst impregnation equipment, and the outlet end of the circulation pipe 1 is connected to the inlet of the catalyst impregnation equipment, thereby allowing the impregnation liquid in the catalyst impregnation equipment to flow into the circulation pipe 1 through the outlet and then flow back into the catalyst impregnation equipment through the inlet.

[0033] The detection element 2 is used to detect the turbidity of the impregnation liquid flowing in the circulation pipe 1. The impregnation liquid carries a carrier, and as the carrier gradually begins to shed powder during the impregnation process, the turbidity of the impregnation liquid will increase. In this application, the detection element 2 and the alarm element 3 are configured such that when the detection element 2 detects that the turbidity of the impregnation liquid flowing in the circulation pipe 1 reaches a preset turbidity level, the alarm element 3 issues an alarm signal.

[0034] The reminder device provided by this invention can draw out the impregnation liquid in the catalyst impregnation equipment and detect the turbidity of the impregnation liquid through the detection element 2. When the carrier is impregnated normally, the carrier begins to shed powder, and the turbidity of the impregnation liquid increases slowly within a certain range. When the carrier tends to over-impregnate, the shed powder will cause the turbidity of the impregnation liquid to be greater than the preset turbidity. When the detection element 2 detects that the turbidity of the impregnation liquid is greater than the preset turbidity, the reminder element 3 issues an alarm signal to remind the staff to perform corresponding operations to avoid over-impregnation of the carrier and ensure that the performance of the catalyst meets the requirements.

[0035] The catalysts for which the reminder device provided by the present invention is applicable can be hydrogenation catalysts, etc. It is understood that the reminder device can also be applied to other catalysts that can be detected.

[0036] In some implementations, such as Figure 1 As shown, the detection component 2 includes a photosensitive coating 21 and a light source 22. The photosensitive material refers to a sensitive material whose characteristic parameters change significantly with changes in external light radiation. When the light intensity changes, the photosensitive properties of the photosensitive material are excited, which is a conventional technology in the field. The light source 22 is a device that can generate light, which is also a conventional technology in the field.

[0037] A photosensitive coating 21 is disposed on one side of the circulation pipe 1, and the portion of the circulation pipe 1 where the photosensitive coating 21 is disposed is made of a transparent material. A light source 22 is disposed on the side of the circulation pipe 1 opposite to the photosensitive coating 21, such that the light source 22 and the photosensitive coating 21 are positioned opposite each other, and the line connecting them passes through the transparent portion of the circulation pipe 1, allowing the light source 22 to shine through the circulation pipe 1 and the impregnating liquid within it onto the photosensitive coating 21. The system is configured such that when the light intensity received by the photosensitive coating 21 is lower than a preset light intensity, the alerting element 3 issues an alarm.

[0038] Specifically, during the normal impregnation process of the carrier in the impregnation solution, powder begins to fall off the carrier, and the light transmittance of the impregnation solution gradually decreases. The light intensity received by the photosensitive coating 21 is within a certain range, and the alarm cannot be triggered when the photosensitive coating 21 receives light intensity within this range. During the impregnation process, the light intensity transmitted through the impregnation solution gradually decreases until the impregnation is completed. The light intensity transmitted through the impregnation solution decreases to a certain specific value (preset light intensity). At this time, the light intensity received by the photosensitive coating 21 is lower than the preset light intensity, and the photosensitive coating 21 triggers the alarm. The alarm sounds to remind the staff that the impregnation is complete and to avoid over-impregnation.

[0039] Whether the photosensitive coating 21 triggers the alarm is based on logic circuit 7. Its basic principle is based on the change in the transmittance of the impregnating liquid. When the impregnating liquid is irradiated with light of a certain intensity, if the transmittance changes, the light intensity passing through it also changes. This light is then projected onto the photosensitive material, which converts the change in brightness into an electrical signal, which is input into the connected logic circuit. The logic circuit then transmits the electrical signal to relevant electronic components to cause them to emit light, sound, or further transmit the signal. Under certain conditions, the method of triggering the alarm based on logic circuit 7 is a mature technology in this field and will not be described in detail here.

[0040] The detection element 2 under this design has a simple structure and can accurately reflect the impregnation status of the carrier based on the light intensity received by the photosensitive coating 21. The measurement results are accurate, and the alarm can be triggered in time after the impregnation is completed, avoiding problems such as excessive impregnation of the carrier leading to serious carrier powder shedding and serious loss of active components.

[0041] In some embodiments, the circulation pipe 1 is made entirely of transparent material, which makes the manufacture of the circulation pipe 1 more convenient and allows staff to easily observe the flow of the impregnating liquid inside the circulation pipe 1.

[0042] In some implementations, such as Figure 1 As shown, the catalyst over-impregnation warning device also includes a mixing component 4, which is disposed on the circulation pipe 1 and located on the side of the detection element 2 near the catalyst impregnation device.

[0043] Specifically, the circulation pipe 1 has an inlet end and an outlet end. The inlet end of the circulation pipe 1 is connected to the outlet of the catalyst impregnation equipment, and the outlet end of the circulation pipe 1 is connected to the inlet of the catalyst impregnation equipment. The mixing component 4 is connected to the circulation pipe 1 so that the impregnation liquid flowing out of the catalyst impregnation equipment enters the circulation pipe 1 and flows into the mixing component 4. After mixing in the mixing component 4, it flows back into the circulation pipe 1. After the turbidity of the impregnation liquid is detected by the detection element 2, it flows back to the catalyst impregnation equipment through the outlet of the circulation pipe 1.

[0044] In this design, the mixing component 4 can mix the impregnation liquid flowing to the detection component 2, increasing the mixing effect of the impregnation liquid and ensuring that the solid and liquid components in the impregnation liquid before the detection of the detection component 2 are evenly distributed, thereby ensuring the accuracy of the detection result of the detection component 2 and enabling the reminder device to have a correction function.

[0045] In some implementations, combined Figure 2 and Figure 3 As shown, the mixing component 4 includes a mixing chamber 41 disposed on the circulation pipe 1. A stirring cylinder 42 is rotatably disposed inside the mixing chamber 41, and a plurality of stirring protrusions 421 are evenly distributed on the outer periphery of the stirring cylinder 42.

[0046] Specifically, the mixing tank 41 has a liquid inlet near its top and a liquid outlet near its bottom. The liquid inlet of the mixing tank 41 is connected to a portion of the circulation pipe 1, and the liquid outlet of the mixing tank 41 is connected to another portion of the circulation pipe 1, thus connecting the mixing tank 41 to the circulation pipe 1. Inside the mixing tank 41 is a stirring drum 42, which is coaxially arranged with the mixing tank 41. The stirring drum 42 can rotate actively or passively relative to the mixing tank 41 to stir the impregnation liquid through the stirring protrusions 421 on its outer periphery, ensuring a uniform distribution of solid and liquid components in the impregnation liquid.

[0047] The mixing component 4 in this design has a simple structure and can uniformly stir the impregnation liquid, meeting the mixing requirements of the impregnation liquid before testing and ensuring the accuracy of the test results of the test piece 2.

[0048] In some embodiments, the mixing assembly 4 further includes a drive unit disposed on the top of the mixing chamber 41, which drives the stirring drum 42 to rotate. The drive unit may be a drive motor or a combination of a drive motor and a reducer, and can be selected according to actual needs.

[0049] In this design, the driving component can drive the stirring drum 42 to rotate actively, so that the impregnation liquid entering the stirring drum 42 can be stirred through the stirring drum 42 and the stirring protrusion 421. The driving component can also control the stirring frequency of the impregnation liquid to ensure the stirring effect of the impregnation liquid.

[0050] In some implementations, such as Figure 2 As shown, the bottom cross-section of the mixing chamber 41 is inverted conical, and the bottom cross-section of the stirring cylinder 42 is also inverted conical. The non-inverted conical part of the mixing chamber is cylindrical, that is, the inner cross-section of the non-inverted conical part of the mixing chamber is rectangular, which increases the cavity range of the mixing chamber 41.

[0051] In this design, the inner cavity of the mixing tank 41 matches the structure of the stirring cylinder 42, and the conical bottom design can generate swirling flow to ensure the stirring effect of the impregnation liquid.

[0052] In some embodiments, the outlet of the mixing tank 41 is located at the intersection of the cylindrical part and the inverted conical part of the mixing tank 41.

[0053] In this design, the outlet of the mixing tank 41 is located at the bottom of the mixing tank 41 to prevent the impregnation liquid that is not mixed evenly from flowing out of the bottom of the mixing tank 41. This ensures that the impregnation liquid in the mixed state flows out from the outlet of the mixing tank 41, thus ensuring the uniformity of the flowing impregnation liquid.

[0054] In some implementations, such as Figure 1 As shown, the inlet end of the circulation pipe 1 is connected to multiple branch pipes 11, and the inlet ends of the multiple branch pipes 11 are respectively used to connect with multiple outlets on the catalyst impregnation equipment that are arranged at intervals along the vertical direction.

[0055] This design facilitates sampling of the impregnation liquid at different locations within the catalyst impregnation equipment, allowing the impregnation liquids from each location to mix and flow into the detection location, thereby further increasing the accuracy of the detection results.

[0056] In some implementations, reference continues. Figure 1 The catalyst impregnation equipment is equipped with three liquid outlets, which are respectively located at the top, middle and bottom of the catalyst impregnation equipment.

[0057] In some embodiments, the catalyst over-impregnation warning device also includes a circulation pump 5, which is disposed between the inlet end of the circulation pipe 1 and the mixing component 4.

[0058] This design allows the circulation pump 5 to power the circulation of the impregnation liquid, ensuring its flow. Furthermore, the operation convenience is increased by controlling the opening time and mode (continuous or intermittent) of the circulation pipe 1 through the circulation pump 5.

[0059] In some embodiments, the alerting device 3 can emit an audible alarm signal, and / or a visual alarm signal, and / or a remote electrical signal. The remote electrical signal can be displayed on a remote terminal, ensuring that staff at the corresponding location receive the alert.

[0060] This design approach allows for the use of sound, light, and remote electrical signals to guide workers in completing the immersion process. One or more of these methods can be selected based on actual needs, ensuring that workers receive the necessary reminders.

[0061] like Figure 1 As shown, the present invention also provides a catalyst impregnation device, including an impregnation device body 6 and the aforementioned catalyst over-impregnation reminder device disposed on the impregnation device body 6, i.e., the aforementioned catalyst over-impregnation reminder device is connected to the impregnation device body 6. The inlet end of the circulation pipe 1 of the catalyst over-impregnation reminder device is connected to the outlet end of the impregnation device body 6, and the outlet end of the circulation pipe 1 is connected to the inlet end of the impregnation device body 6, so as to realize the impregnation liquid in the impregnation device body 6 circulates within the circulation pipe 1. The catalyst over-impregnation reminder device here includes all the technical features of the aforementioned catalyst over-impregnation reminder device.

[0062] The present invention also provides a method for alerting over-impregnation of a catalyst, comprising the following steps:

[0063] Step S1: Connect a circulation pipe 1 to the impregnation equipment body 6 of the catalyst impregnation equipment to allow the impregnation liquid to flow within the circulation pipe 1. The manner in which the circulation pipe 1 is connected to the impregnation equipment body 6 has been described above and will not be repeated here.

[0064] Step S2 involves detecting the turbidity of the impregnating liquid flowing in the circulation pipe 1 using the detection element 2. The specific setup and detection method of the detection element 2 have been described above and will not be repeated here.

[0065] Step S3: When the detection element 2 detects that the turbidity of the impregnating liquid flowing in the circulation pipe 1 reaches a preset turbidity level, the reminder element 3 issues an alarm signal. The design and alarm method of the reminder element 3 have been described above and will not be repeated here.

[0066] In some embodiments, the catalyst over-impregnation warning method is implemented by the catalyst over-impregnation warning device described above.

[0067] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0068] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features of the invention described herein.

Claims

1. A catalyst over-impregnation warning device, characterized in that, The device includes a circulation pipe (1), a detection element (2), and a reminder element (3). The circulation pipe (1) is connected to the catalyst impregnation equipment to allow the impregnation liquid to flow within the circulation pipe (1). The detection element (2) is used to detect the turbidity of the impregnation liquid flowing within the circulation pipe (1) and is configured as follows: When the detection element (2) detects that the turbidity of the impregnating liquid flowing in the circulation pipe (1) reaches a preset turbidity level, the reminder element (3) issues an alarm signal.

2. The catalyst over-impregnation reminder device according to claim 1, characterized in that, The detection element (2) includes: A photosensitive coating (21) is provided on one side of the circulation pipe (1), and the circulation pipe (1) at least the location where the photosensitive coating (21) is provided is made of transparent material; A light source (22) is disposed on the side of the circulation pipe (1) facing away from the photosensitive coating (21) and configured as follows: When the light intensity received by the photosensitive coating (21) is lower than the preset light intensity, the reminder (3) issues an alarm.

3. The catalyst over-impregnation reminder device according to claim 1, characterized in that, The catalyst over-impregnation warning device also includes a mixing component (4), which is disposed on the circulation pipe (1) and located on the side of the detection element (2) near the catalyst impregnation device.

4. The catalyst over-impregnation reminder device according to claim 3, characterized in that, The mixing assembly (4) includes a mixing tank (41) disposed on the circulation pipe (1), and a stirring cylinder (42) is rotatably disposed inside the mixing tank (41), and a plurality of stirring protrusions (421) are evenly distributed on the outer periphery of the stirring cylinder (42).

5. The catalyst over-impregnation reminder device according to claim 4, characterized in that, The mixing assembly (4) also includes a drive unit disposed on the top of the mixing chamber (41), the drive unit being used to drive the stirring drum (42) to rotate.

6. The catalyst over-impregnation reminder device according to claim 4, characterized in that, The bottom cross-section of the mixing tank (41) is inverted cone, and the bottom cross-section of the stirring cylinder (42) is also inverted cone.

7. The catalyst over-impregnation reminder device according to claim 3, characterized in that, The inlet end of the circulation pipe (1) is connected to multiple branch pipes (11), and the inlet ends of the multiple branch pipes (11) are respectively used to communicate with multiple outlets arranged vertically at intervals on the catalyst impregnation equipment.

8. The catalyst over-impregnation reminder device according to claim 7, characterized in that, The catalyst over-impregnation warning device also includes a circulation pump (5), which is located between the liquid inlet end of the circulation pipe (1) and the mixing component (4).

9. The catalyst over-impregnation reminder device according to claim 1, characterized in that, The reminder (3) can emit an audible alarm signal, and / or a light alarm signal, and / or a remote electrical signal.

10. A method for alerting users to excessive catalyst impregnation, characterized in that, Includes the following steps: A circulation pipe (1) is connected to the impregnation equipment body (6) of the catalyst impregnation equipment so that the impregnation liquid can flow in the circulation pipe (1); The turbidity of the impregnating liquid flowing in the circulation pipe (1) is detected by the test piece (2); When the detection element (2) detects that the turbidity of the impregnating liquid flowing in the circulation pipe (1) reaches the preset turbidity level, the reminder element (3) issues an alarm signal.

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