SCR (Selective Catalytic Reduction) catalytic reactor for treating flue gas of glass kiln
By introducing a push rod and a removable filter structure into the SCR catalytic reactor, the problem of catalyst clogging was solved, the reaction efficiency and lifespan were improved, maintenance costs were reduced, and efficient flue gas treatment was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2026-03-17
AI Technical Summary
In existing SCR catalytic reactors, the catalyst channels are easily blocked by particles and impurities in the flue gas, resulting in reduced permeability and decreased reaction efficiency, which affects denitrification performance and increases maintenance costs.
A structure including a push rod, a sliding plate, and a fastening frame was designed. The push rod clears the catalyst pores, and combined with a detachable filter and rectifier, it ensures smooth flue gas flow and catalyst stability, simplifying the maintenance process.
This improved the catalyst's lifespan and reaction efficiency, reduced maintenance costs, and ensured stable equipment operation and efficient flue gas treatment.
Smart Images
Figure CN223995799U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of environmental protection equipment technology, and in particular to an SCR catalytic reactor for treating flue gas from glass kilns. Background Technology
[0002] When treating flue gas from glass kilns, an SCR catalytic reactor is often used. It is a specially designed device that aims to reduce harmful gases such as nitrogen oxides emitted from glass kilns through catalytic reaction technology, so as to meet environmental protection standards, reduce environmental impact, and promote environmental protection.
[0003] A typical SCR catalytic reactor for treating flue gas from glass kilns consists of a reaction inlet, a reaction chamber, a porous solid catalyst, and a rectifier. During operation, the reaction inlet serves as the channel for flue gas to enter the reactor, ensuring effective flow into the reaction chamber where it mixes thoroughly with the reducing agent. The reaction chamber contains a porous solid catalyst, where nitrogen oxides in the flue gas undergo a selective catalytic reaction with the reducing agent under the catalyst's action. The rectifier optimizes the airflow distribution, reducing flow non-uniformity and ensuring uniform contact between the flue gas and the catalyst, thereby improving reaction efficiency.
[0004] However, in some existing devices, the pores inside the catalyst are easily clogged by particles and impurities in the flue gas during long-term use, leading to reduced catalyst permeability and decreased reaction efficiency. This not only affects the denitrification performance of the reactor but also causes premature catalyst failure, increasing maintenance and replacement costs. Therefore, an SCR catalytic reactor for glass kiln flue gas treatment is proposed to address these problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an SCR catalytic reactor for treating flue gas from glass kilns, aiming to improve the problem that some existing devices cannot clean and unclog the pores inside the catalyst.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An SCR catalytic reactor for treating flue gas from a glass furnace includes a reaction inlet. A conveying assembly for conveying flue gas is fixedly connected to the rear side of the reaction inlet. A reaction outlet is fixedly connected to the bottom of the conveying assembly. A placement frame is fixedly connected inside the conveying assembly. Connecting plates are fixedly connected to both sides of the bottom of the placement frame. Multiple connecting rods are fixedly connected to adjacent sides of the bottom of the placement frame. Two sliding plates are slidably connected to the outside of the multiple connecting rods. Alignment plates are fixedly connected to the bottom of the two sliding plates. Multiple pushing rods are fixedly connected inside the alignment plates.
[0008] As a further description of the above technical solution:
[0009] The conveying assembly includes a connecting pipe, the outside of which is fixedly connected to the rear side of the reaction inlet, a reaction chamber is fixedly connected to the rear side of the connecting pipe, the top of the reaction outlet is fixedly connected to the bottom of the reaction chamber, and the outside of the placement rack is fixedly connected to the inside of the reaction chamber.
[0010] As a further description of the above technical solution:
[0011] The reaction chamber is fixedly connected to a fastening frame, and a rotating block is rotatably connected to the bottom of the fastening frame;
[0012] As a further description of the above technical solution:
[0013] A connecting column is fixedly connected to the top of the rotating block, and a conical plug is fixedly connected to the top of the connecting column.
[0014] As a further description of the above technical solution:
[0015] A filter screen is slidably connected inside the fastening frame, and a rectifier is fixedly connected to the bottom of the filter screen. The rectifier is located on the top of the connecting plate.
[0016] As a further description of the above technical solution:
[0017] The inner bottom wall of the alignment plate, which houses the external portion of the multiple push rods, can be pushed to drive the push rods upward.
[0018] As a further description of the above technical solution:
[0019] The fastening frame consists of two identical support plates. The longer side of the rotating block can be engaged with the top of the fastening frame. After rotation, the rotating block can be placed inside the fastening frame. By pulling upward through the conical plug, the two support plates are brought closer to each other. Then, rotating the rotating block can fix the filter screen.
[0020] As a further description of the above technical solution:
[0021] The bottom of the placement rack is at the top of the reaction outlet, and the bottom of the connecting plate is at the top of the reaction outlet.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the alignment plate pushes the push plate to clear the holes in the solid catalyst. This design reduces the risk of catalyst blockage, improves the overall reaction efficiency, and makes the flue gas treatment process smoother. At the same time, keeping the holes open helps to extend the service life of the catalyst and reduce maintenance costs.
[0024] 2. In this utility model, the filter can be easily installed and removed by rotating the rotating block out of the filter screen, enabling quick replacement and fixation. This measure significantly improves maintenance efficiency, reduces equipment downtime, and ensures the stability and reliability of the filter screen during use. The simplified maintenance process also reduces operational difficulty. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of an SCR catalytic reactor for treating flue gas from a glass kiln, as proposed in this utility model.
[0026] Figure 2 This is a schematic diagram of the structure of a mounting rack for an SCR catalytic reactor used for treating flue gas from a glass kiln, as proposed in this utility model.
[0027] Figure 3 This is a schematic diagram of the sliding plate of an SCR catalytic reactor for treating flue gas from a glass kiln, as proposed in this utility model.
[0028] Figure 4 This is a schematic diagram of the conical plug of an SCR catalytic reactor for treating flue gas from a glass kiln, as proposed in this utility model.
[0029] Legend:
[0030] 1. Reaction inlet; 2. Connecting pipe; 3. Reaction chamber; 4. Reaction outlet; 5. Placement rack; 6. Connecting plate; 7. Connecting rod; 8. Sliding plate; 9. Alignment plate; 10. Push rod; 11. Fastening frame; 12. Rotating block; 13. Connecting column; 14. Conical plug; 15. Filter screen; 16. Rectifier. Detailed Implementation
[0031] 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.
[0032] Reference Figure 2 and Figure 3This utility model provides an embodiment of an SCR catalytic reactor for treating flue gas from a glass kiln. It includes a reaction inlet 1 for flue gas to enter the device. A flue gas conveying assembly is fixedly connected to the rear exterior of the reaction inlet 1. A reaction chamber 3 is fixedly connected to the rear exterior of a connecting pipe 2. The conveying assembly includes the connecting pipe 2, through which flue gas can be conveyed into the chamber 3. The outer exterior of the connecting pipe 2 is fixedly connected to the rear exterior of the reaction inlet 1. The top of the reaction outlet 4 is fixedly connected to the bottom of the reaction chamber 3. A placement rack 5 is fixedly connected to the interior of the reaction chamber 3. The bottom of the conveying assembly is fixedly connected to the reaction outlet 4, responsible for discharging the denitrified flue gas. The interior of the conveying assembly is fixedly connected to the placement rack 5 for fixing and supporting the solid catalyst, ensuring stable placement of the catalyst within the reaction chamber. Connecting plates 6 are fixedly connected to both sides of the bottom, designed for additional support. Multiple connecting rods 7 are fixedly connected to the adjacent side of the bottom of the placement rack 5, which allows the two connecting plates 6 to be connected together. Two sliding plates 8 are slidably connected to the outside of the multiple connecting rods 7, designed to slide smoothly outside the connecting rods 7. Alignment plates 9 are fixedly connected to the bottom of the two sliding plates 8, which are designed to provide good support. Multiple push rods 10 are fixedly connected inside the alignment plate 9, which can clear the pores inside the solid catalyst and prevent blockage. The inner bottom wall of the alignment plate 9, which is the outside of the multiple push rods 10, can be pushed to drive the push rods 10 upward. The bottom of the placement rack 5 is at the top of the reaction outlet 4, and the bottom of the connecting plate 6 is at the top of the reaction outlet 4.
[0033] Reference Figure 1 and Figure 4The reaction chamber 3 is internally fixedly connected to a fastening frame 11, and a filter screen 15 is slidably connected inside the fastening frame 11. The design of the fastening frame 11 can fix the filter screen 15, allowing the flue gas to undergo preliminary filtration through the filter screen 15. A rotating block 12 is rotatably connected to the bottom of the fastening frame 11, which is convenient for prying and fixing to the top of the fastening frame 11. A connecting post 13 is fixedly connected to the top of the rotating block 12, and a conical plug 14 is fixedly connected to the top of the connecting post 13. The conical design allows the filter screen 15 to be fixed inside the fastening frame 11 by penetrating all four sides. A rectifier 16 is fixedly connected to the bottom. Its design is usually composed of guide plates, which can change the flow pattern of the airflow, reduce the turbulence and non-uniformity of the flue gas flow, and ensure that the flue gas fully contacts and reacts in the catalyst bed. The outside of the rectifier 16 is on the top of the connecting plate 6. The fastening frame 11 is composed of two identical support plates. The longer side of the rotating block 12 can be locked onto the top of the fastening frame 11. After rotation, the rotating block 12 can be placed out of the inside of the fastening frame 11. The two support plates are brought closer together by pulling upward through the conical plug 14. Then, rotating the rotating block 12 can drive the filter screen 15 to be fixed.
[0034] Working Principle: First, flue gas enters the device through reaction inlet 1 and is transported to reaction chamber 3 via connecting pipe 2. Inside reaction chamber 3, the flue gas flows through placement rack 5, which fixes and supports the solid catalyst to promote the reaction and perform denitrification. After the reaction, the treated flue gas is discharged from reaction outlet 4 at the bottom of reaction chamber 3. To ensure the catalyst's stable position within the reaction chamber, placement rack 5 is designed with connecting plate 6 and multiple connecting rods 7, which together provide additional support. Simultaneously, to address catalyst clogging issues, push rod 10 is pushed by alignment plate 9, allowing connecting rods 7 and sliding plate 8 to slide smoothly, thus ensuring the catalyst remains in good working condition throughout the reaction process.
[0035] When the flue gas enters the interior of chamber 3, it passes through the internal fastening frame 11 and reaches the filter screen 15 for preliminary filtration. The filter screen 15 is slidably connected inside the fastening frame 11, and its design ensures that larger particles and impurities are removed as the flue gas passes through, protecting the normal operation of subsequent treatment equipment. A rectifier 16 is connected to the bottom of the filter screen 15. The rectifier 16 is typically composed of guide plates, designed to change the airflow pattern, reduce turbulence and non-uniformity in the flue gas flow, thereby ensuring sufficient contact between the flue gas and the reducing agent in the catalyst bed. The bottom of the fastening frame 11 is rotatably connected to the rotating block 12, facilitating maintenance and replacement of the filter screen 15 by the operator. When the operator engages the rotating block 12 with its longer side on the top of the fastening frame 11, and then pulls the conical plug 14 upwards using the rotating block 12, the two support plates of the fastening frame 11 are brought closer together, facilitating the fixation of the filter screen 15. After the new filter screen 15 is fixed, the rotating block 12 is fed in again and rotated to firmly fix the filter screen 15 inside the fastening frame 11.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An SCR catalytic reactor for the treatment of the fumes of a glass furnace, comprising a reaction inlet (1), characterized in that: The outside rear side of the reaction entrance (1) is fixedly connected with a conveying assembly for conveying flue gas, the bottom of the conveying assembly is fixedly connected with a reaction outlet (4), the inside of the conveying assembly is fixedly connected with a placing rack (5), both sides of the bottom of the placing rack (5) are fixedly connected with a connecting plate (6), one side adjacent to the bottom of the placing rack (5) is fixedly connected with a plurality of connecting rods (7), the outside of the plurality of connecting rods (7) is slidably connected with two sliding plates (8), the bottom of the two sliding plates (8) is fixedly connected with a positioning plate (9), the inside of the positioning plate (9) is fixedly connected with a plurality of push rods (10).
2. The SCR catalytic reactor for treating flue gas of a glass furnace according to claim 1, characterized in that: The conveying assembly comprises a connecting pipe (2), the outside of the connecting pipe (2) is fixedly connected to the outside rear side of the reaction entrance (1), the outside rear side of the connecting pipe (2) is fixedly connected with a reaction bin (3), the top of the reaction outlet (4) is fixedly connected to the bottom of the reaction bin (3), and the outside of the placing rack (5) is fixedly connected to the inside of the reaction bin (3).
3. The SCR catalytic reactor for treating flue gas of a glass furnace according to claim 2, characterized in that: The inside of the reaction bin (3) is fixedly connected with a buckling rack (11), and the bottom of the buckling rack (11) is rotatably connected with a rotating block (12).
4. The SCR catalytic reactor for treating flue gas of a glass furnace according to claim 3, characterized in that: The top of the rotating block (12) is fixedly connected with a connecting column (13), and the top of the connecting column (13) is fixedly connected with a conical plug (14).
5. An SCR catalytic reactor for treating flue gas of a glass furnace according to claim 4, characterized in that: The inside of the buckling rack (11) is slidably connected with a filter screen (15), the bottom of the filter screen (15) is fixedly connected with a rectifier (16), and the outside of the rectifier (16) is located at the top of the connecting plate (6).
6. The SCR catalytic reactor for treating flue gas of a glass furnace according to claim 1, characterized in that: The inner bottom wall of the positioning plate (9), i.e. the outside of the plurality of push rods (10) placed therein, can be pushed, so that the push rods (10) are driven to be pushed upward.
7. The SCR catalytic reactor for treating flue gas of a glass furnace according to claim 5, characterized in that: The buckling rack (11) is composed of two same supporting plates, the longer side of the rotating block (12) can be clamped at the top of the buckling rack (11), and after rotation, the rotating block (12) can be placed out of the inside of the buckling rack (11), the conical plug (14) is pulled upward, so that the two supporting plates are close to each other, and then the rotating block (12) is rotated to drive the filter screen (15) to be fixed.
8. The SCR catalytic reactor for treating flue gas of a glass furnace according to claim 1, characterized in that: The bottom of the placing rack (5) is located at the top of the reaction outlet (4), and the bottom of the connecting plate (6) is located at the top of the reaction outlet (4).