Drying device for SCR denitration catalyst processing

By designing a drying device with air ducts and transmission components, the problem of uneven catalyst drying was solved, achieving efficient catalyst drying and convenient operation.

CN223795681UActive Publication Date: 2026-01-13YIXING YIGANG ENVIRONMENTAL PROTECTION ENG & MATERIALS
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Patent Information

Application Number
CN202423275323.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2026-01-13
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

Existing SCR denitrification catalyst drying devices suffer from limited contact area between hot air and catalyst, resulting in low drying efficiency in some areas.

Method used

A drying device including an air outlet pipe, a connecting pipe, a hot air blower, and a transmission component was designed. By oscillating the air outlet pipe and rotating the catalyst, hot air can be simultaneously blown onto the top wall, bottom wall, and outer surface of the catalyst. The transmission component is used to transfer the catalyst and reduce its temperature.

Benefits of technology

This improves the drying efficiency of the catalyst, ensures that all parts are in direct contact with hot air, shortens the drying time, and facilitates subsequent handling and use.

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Abstract

The utility model discloses a drying device for SCR denitration catalyst processing, which comprises a base, the outer wall of the top of the base is rotatably connected with a mounting frame, the outer wall of the top of the mounting frame is fixedly connected with a plurality of mounting rings which are distributed at equal intervals, and drying components are mounted in the mounting rings. The drying assembly comprises a supporting frame fixedly connected with the inner wall of the top of the mounting ring, an air outlet pipe is rotationally connected into the supporting frame, air outlet holes are formed in the inner walls of the top and the bottom of the air outlet pipe and the inner wall of one side of the air outlet pipe, two through holes are formed in the outer wall of the top of the mounting ring, and a connecting pipe is fixedly inserted into the outer wall of the top of the air outlet pipe. By arranging the drying assembly and the air outlet pipe, the top wall, the bottom wall and the outer surface of a catalyst can be blown at the same time, and the air outlet pipe is driven to swing while the catalyst rotates, so that it is guaranteed that different positions of the catalyst can be directly blown by hot air, and the drying effect is improved.
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Description

Technical Field

[0001] This utility model relates to the field of catalyst processing technology, specifically a drying device for processing SCR denitrification catalysts. Background Technology

[0002] SCR denitrification catalyst is the core component of SCR denitrification technology, and its performance directly affects the denitrification effect. The production process of the catalyst mainly includes steps such as mixing, extrusion, drying, and calcination. Among these, drying is one of the most important steps in the catalyst production process. Its purpose is to remove moisture from the catalyst to achieve a certain degree of dryness for subsequent calcination and use.

[0003] A search revealed a utility model patent with Chinese patent publication number CN214223653U, which discloses a novel drying device for SCR denitrification catalysts, relating to the field of SCR denitrification catalyst production technology, and addressing the problem of poor drying efficiency for denitrification catalysts in existing drying devices. A rotating seat is installed at the bottom inside the drying chamber, and the rotating seat is rotatably connected to the drying chamber via bearings. A support plate is provided above the rotating seat, and fixing plates are fixedly installed on both sides of the upper end of the support plate.

[0004] The aforementioned device dries the catalyst by setting up three air outlets. However, the contact area between the hot air blown out and the catalyst is relatively limited. The part that does not receive direct contact with the hot air can only be dried by the dissipated residual heat. It will take longer to achieve the required degree of dryness in this part, and there is room for improvement. Utility Model Content

[0005] The purpose of this invention is to provide a drying device for processing SCR denitrification catalysts to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a drying device for processing SCR denitrification catalyst, comprising a base, a mounting frame rotatably connected to the top outer wall of the base, and multiple equally spaced mounting rings fixedly connected to the top outer wall of the mounting frame. Each mounting ring contains a drying assembly, which includes a support frame fixedly connected to the top inner wall of the mounting rings. An air outlet pipe is rotatably connected inside the support frame. Air outlet holes are provided on the top, bottom, and one side inner walls of the air outlet pipe. Two through holes are provided on the top outer wall of the mounting rings. A connecting pipe is fixedly inserted into the top outer wall of the air outlet pipe, with one end of the connecting pipe fixedly inserted into one of the through holes.

[0007] As a further preferred embodiment of this technical solution, a motor is fixedly installed on the bottom outer wall of the mounting frame, and a placement box is coaxially fixed to the output end of the motor. The placement box is located inside the air outlet pipe, and multiple top plates are provided on the outer circumference of the placement box. Each of the multiple top plates can push the air outlet pipe. Two springs are fixedly connected between the support frame and the air outlet pipe, and the two springs are respectively located on both sides of the rotating end of the air outlet pipe.

[0008] As a further preferred embodiment of this technical solution, two sealing plates are fixedly connected to one side of the top outer wall of the base, and the plurality of mounting rings can form a closed space with the two sealing plates.

[0009] As a further preferred embodiment of this technical solution, a hot air blower is fixedly installed on the bottom of the outer wall of one side of one of the sealing plates. A pipe is fixedly inserted into both the air outlet and air inlet of the hot air blower, and two through holes on the top of the plurality of mounting rings can be connected to two pipes respectively.

[0010] The air outlet duct can simultaneously blow hot air onto the top, bottom, and outer surfaces of the catalyst. The rotation of the catalyst also drives the air outlet duct to oscillate, ensuring that different parts of the catalyst receive direct hot air, which improves the drying effect. When the mounting ring enters between the two sealing plates, a sealed space is formed. Simultaneously, the two pipe ports are connected to the two through holes. Hot air generated by the hot air blower enters the air outlet duct through the pipes, through holes, and connecting pipes, and then sprays out from its opening, directly contacting the top, bottom, and outer surfaces of the catalyst. The motor then drives the placement box to rotate, allowing other parts of the catalyst to receive direct hot air. As the placement box rotates, when the top plate at its bottom contacts the air outlet duct, the spring tension is overcome, and the air outlet duct flips inside the support frame, changing the position of the hot air flow and ensuring that other parts of the catalyst receive direct hot air. When the top plate no longer contacts the air outlet duct, the spring drives the air outlet duct back to its original position, and this process repeats.

[0011] As a further preferred embodiment of this technical solution, a transmission assembly is installed at the bottom of the mounting frame. The transmission assembly includes a second motor coaxially fixed to the inner wall of the top of the mounting frame, a gear ring fixedly installed to the outer wall of the top of the base, and a gear coaxially fixed to the output end of the gear ring, the gear meshing with the second motor.

[0012] The gear ring at the top of the base is activated, and the output end of the gear ring drives the gear to start rotating. The gear, through the motor meshing with it, drives the mounting frame to rotate, and the catalyst will be conveyed into the space between the two sealing plates. It will then be dried. After drying, it will be conveyed to the other side of the sealing plate, at which point the catalyst will be exposed to the external environment. When it is moved in front of the staff, its surface temperature will also decrease, making it easier to handle.

[0013] As a further preferred embodiment of this technical solution, the two corners at the top of the plurality of mounting rings are all provided with bevels.

[0014] As a further preferred embodiment of this technical solution, the connecting pipe is made of a corrugated flexible hose.

[0015] This utility model provides a drying device for processing SCR denitration catalysts, which has the following beneficial effects:

[0016] (1) By setting up a drying component, the air outlet pipe can blow hot air onto the top wall, bottom wall and outer surface of the catalyst at the same time. When the catalyst rotates, the air outlet pipe is driven to swing, so that different parts of the catalyst can be directly blown with hot air, which is beneficial to improving the drying effect. When the mounting ring enters between the two sealing plates, the three will form a sealed space. At the same time, the two pipe ports will also be connected to the two through holes. The hot air generated by the hot air blower enters the air outlet pipe through the pipe, through hole and connecting pipe, and then sprays out from its opening, directly contacting the top wall, bottom wall and outer surface of the catalyst. Then, the motor drives the placement box to rotate, so that other parts of the catalyst can also be directly blown with hot air. When the placement box rotates, when the top plate at the bottom of the box contacts the air outlet pipe, the tension of the spring is overcome, and the air outlet pipe will flip inside the support frame, so that the position of the hot air flow will also change, and other parts of the catalyst can also be directly blown with hot air. When the top plate no longer contacts the air outlet pipe, the spring will drive the air outlet pipe to return to its original position, and so on.

[0017] (2) By setting up a transmission component, the toothed ring at the top of the base is activated. The output end of the toothed ring drives the gear to start rotating. The gear drives the mounting frame to rotate through the motor meshing with it. The catalyst will then be conveyed into the space between the two sealing plates and then dried. After drying, it will be conveyed to the other side of the sealing plate. At this time, the catalyst will be exposed to the external environment. When it is moved in front of the staff, its surface temperature will also decrease, making it easy to pick up. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;

[0020] Figure 3 This is an enlarged structural schematic diagram of the drying component of this utility model;

[0021] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0022] In the diagram: 1. Base; 2. Mounting bracket; 3. Mounting ring; 4. Sealing plate; 5. Hot air blower; 6. Pipe; 7. Drying assembly; 8. Transmission assembly; 701. Support frame; 702. Air outlet pipe; 703. Connecting pipe; 704. Through hole; 705. Motor 1; 706. Placement box; 707. Top plate; 708. Spring; 709. Angled angle; 801. Motor 2; 802. Gear ring; 803. Gear. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] This utility model provides a technical solution: such as Figure 2 and Figure 3 As shown in this embodiment, a drying device for processing SCR denitrification catalyst includes a base 1. A mounting frame 2 is rotatably connected to the top outer wall of the base 1. Multiple equally spaced mounting rings 3 are fixedly connected to the top outer wall of the mounting frame 2. A drying component 7 is installed inside each of the multiple mounting rings 3. The drying component 7 includes a support frame 701 fixedly connected to the top inner wall of the mounting rings 3. An air outlet pipe 702 is rotatably connected inside the support frame 701. Air outlet holes are opened on the top, bottom, and one side inner walls of the air outlet pipe 702. Two through holes 704 are opened on the top outer wall of the mounting rings 3. A connecting pipe 703 is fixedly inserted into the top outer wall of the air outlet pipe 702. One end of the connecting pipe 703 is fixedly inserted into one of the through holes 704.

[0025] A motor 705 is fixedly installed on the bottom outer wall of the mounting bracket 2. A placement box 706 is coaxially fixed to the output end of the motor 705. The placement box 706 is located inside the air outlet pipe 702. Multiple top plates 707 are provided on the outer circumference of the placement box 706. All the top plates 707 can push the air outlet pipe 702. Two springs 708 are fixedly connected between the support frame 701 and the air outlet pipe 702. The two springs 708 are located on both sides of the rotating end of the air outlet pipe 702.

[0026] Two sealing plates 4 are fixedly connected to one side of the top outer wall of the base 1, and multiple mounting rings 3 can form a closed space with the two sealing plates 4.

[0027] When the mounting ring 3 enters between the two sealing plates 4, the three will form a sealed space. At the same time, the ports of the two pipes 6 will also be connected to the two through holes 704, and then spray out from their openings, directly contacting the top wall, bottom wall and outer surface of the catalyst. Then, the motor 705 drives the placement box 706 to rotate, so that other parts of the catalyst will also be directly blown with hot air. When the placement box 706 rotates, when the top plate 707 at the bottom of its bottom contacts the air outlet pipe 702, the tension of the spring 708 is overcome, and the air outlet pipe 702 will flip inside the support frame 701, so that the position of the hot air flow will also change, and other parts of the catalyst will also be directly blown with hot air. When the top plate 707 no longer contacts the air outlet pipe 702, the spring 708 will drive the air outlet pipe 702 to return to its original position, and so on.

[0028] like Figure 1 As shown in Figure 2, a hot air blower 5 is fixedly installed on the bottom of the outer wall of one of the sealing plates 4. A pipe 6 is fixedly inserted into both the air outlet and air inlet of the hot air blower 5. Two through holes 704 on the top of the multiple mounting rings 3 can be connected to the two pipes 6 respectively. When the hot air blower 5 is started, the hot air it generates will enter the air outlet pipe 702 through the pipe 6, through hole 704 and connecting pipe 703.

[0029] like Figure 2 and Figure 4 As shown, a transmission assembly 8 is installed at the bottom of the mounting frame 2. The transmission assembly 8 includes a motor 801 coaxially fixed to the inner wall of the top of the mounting frame 2, a gear ring 802 fixedly installed to the outer wall of the top of the base 1, and a gear 803 coaxially fixed to the output end of the gear ring 802. The gear 803 meshes with the motor 801.

[0030] The gear ring 802 on the top of the base 1 is activated. The output end of the gear ring 802 drives the gear 803 to start rotating. The gear 803 drives the mounting frame 2 to rotate through the motor 801 meshing with it. The catalyst will then be conveyed into the space between the two sealing plates 4 and then dried. After drying, it will be conveyed to the other side of the sealing plate 4. At this time, the catalyst will be exposed to the external environment. When it is moved in front of the staff, its surface temperature will also decrease, making it easier to handle.

[0031] like Figure 1 As shown, the top two corners of the multiple mounting rings 3 are all provided with beveled angles 709, so that the pipe 6 will not be blocked by the mounting rings 3, thus ensuring that the docking process is smooth enough.

[0032] like Figure 3 As shown, the connecting pipe 703 is made of corrugated flexible hose, which allows the air outlet pipe 702 to rotate smoothly without obstruction.

[0033] This utility model provides a drying device for processing SCR denitration catalysts, the specific working principle of which is as follows:

[0034] When the device is in operation, the catalyst to be dried is placed in a placement box 706 near the sealing plate 4. Then, the gear ring 802 on the top of the base 1 is activated. The output end of the gear ring 802 drives the gear 803 to rotate. The gear 803, through the motor 801 meshing with it, drives the mounting frame 2 to rotate, thereby conveying the catalyst into the space between the two sealing plates 4. It will then be dried. After drying, it will be conveyed to the other side of the sealing plate 4, at which point the catalyst will be exposed to the external environment. When it is moved in front of the operator, its surface temperature will decrease, making it easier to handle. When the mounting ring 3 enters the space between the two sealing plates 4, the three will form a sealed space, and the two pipes 6 will be connected to the two through holes 704. Hot air generated by the hot air blower 5 enters the air outlet pipe 702 through the pipe 6, through hole 704 and connecting pipe 703, and then sprays out from its opening, directly contacting the top wall, bottom wall and outer surface of the catalyst. Then, the motor 705 drives the placement box 706 to rotate, so that other parts of the catalyst will also be directly blown with hot air. When the placement box 706 rotates, when the top plate 707 at the bottom of its bottom contacts the air outlet pipe 702, the tension of the spring 708 is overcome, and the air outlet pipe 702 will flip inside the support frame 701, so that the position of the hot air flow will also change, and other parts of the catalyst will also be directly blown with hot air. When the top plate 707 no longer contacts the air outlet pipe 702, the spring 708 will drive the air outlet pipe 702 to return to its original position, and so on.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drying device for SCR denitration catalyst processing, comprising a base (1), characterized in that: The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3).

2. The drying device for processing of an SCR De-NOx catalyst according to claim 1, characterized in that: The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3).

3. The drying device for processing of an SCR De-NOx catalyst according to claim 1, characterized in that: The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3).

4. The drying device for processing of an SCR De-NOx catalyst according to claim 3, characterized in that: One of the sealing plates (4) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3).

5. The drying device for processing of an SCR De-NOx catalyst according to claim 1, characterized in that: The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3).

6. The drying device for processing of an SCR De-NOx catalyst according to claim 1, characterized in that: The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3).

7. The drying device for processing of an SCR De-NOx catalyst according to claim 1, characterized in that: The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3). The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3). The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3). The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3). The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3). The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3). The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3). The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3). The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3). The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3). The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3). The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3). The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3). The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3). The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3). The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3). The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3). The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3). The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3). The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3). The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3). The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3). The mounting frame (2) is fixedly connected with the base (1), and the mounting frame (2) is fixedly connected with a plurality of mounting rings (3) which are distributed at equal intervals on the top outer wall of the mounting frame (2), and a drying assembly (7) is arranged in each mounting ring (3). The mounting frame (2) is fixedly connected with the base (1),

Citation Information

Patent Citations

  • Novel drying device for SCR denitration catalyst

    CN214223653U