Sintering flue gas carbon monoxide catalytic reaction device

By designing a detachable door and a precision transmission system for the bag filter lifting mechanism, combined with an automatic dust removal structure, the problem of carbon buildup and blockage in the catalytic reaction unit was solved. This enabled convenient disassembly and efficient dust removal, reduced maintenance costs, and extended equipment life.

CN224585672UActive Publication Date: 2026-08-04FUJIAN PROVINCE SINOGASHOLDER EQUIP INSTALLATION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN PROVINCE SINOGASHOLDER EQUIP INSTALLATION CO LTD
Filing Date
2025-06-20
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing catalytic reaction devices are prone to carbon buildup and pore blockage after prolonged operation, leading to delayed maintenance, reduced efficiency, and safety hazards, and are also inconvenient to disassemble and maintain.

Method used

A device comprising a base, pipes, housing, bag filter, and power unit was designed. The bag filter is raised and lowered through a detachable door and a precision transmission system, facilitating disassembly. It is equipped with scrapers and cleaning brushes for automatic dust removal. A dual-guide structure ensures stable movement of the dust collector. The scrapers are driven by a motor to clean the inner wall of the pipes.

Benefits of technology

It enables convenient disassembly and cleaning of the catalytic reaction unit, improves the system cleaning efficiency, reduces maintenance costs and extends equipment life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to sintering flue gas processing technical field, concretely is a kind of sintering flue gas carbon monoxide catalytic reaction device, including base;The base top is fixed with first pipeline;A pair of connecting pipes is fixed on the outer circular wall of first pipeline;The box is fixed with the top of first pipeline;The box one side is equipped with detachable box door;The box both sides are fixed with wind box;The box top is fixed with second pipeline;The exhaust pipe is fixed with the top of second pipeline, to make up the deficiency of prior art, to solve when sintering flue gas is handled, catalytic equipment in catalytic reaction device inside in long time working process, organic matter or incomplete combustion hydrocarbon in flue gas form carbon deposit on the surface of catalyst, block pore, reduce effective reaction area, in addition, existing catalytic reaction device is not convenient to disassemble, so that catalytic reaction device can cause maintenance lag, efficiency drop, security risk and cost increase problem.
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Description

Technical Field

[0001] This utility model belongs to the field of sintering flue gas treatment technology, specifically a carbon monoxide catalytic reaction device for sintering flue gas. Background Technology

[0002] This device is a flue gas purification equipment specifically designed for steel sintering processes. It converts carbon monoxide (CO) in flue gas into carbon dioxide (CO2) through catalytic oxidation technology, thereby reducing CO emissions and meeting environmental emission standards. It achieves efficient CO removal through low-temperature catalytic oxidation and has advantages such as energy saving, modularity, and synergistic control of multiple pollutants, which is in line with the current development trend of ultra-low emissions from industrial flue gas.

[0003] In the existing technology, when treating sintering flue gas, during long-term operation, organic matter or unburned hydrocarbons in the flue gas form carbon deposits on the catalyst surface, clogging the pores and reducing the effective reaction area. In addition, the existing catalytic reaction device is not easy to disassemble, which leads to delayed maintenance, decreased efficiency, safety hazards and increased costs.

[0004] Therefore, this utility model provides a carbon monoxide catalytic reaction device for sintering flue gas. Utility Model Content

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A catalytic reaction device for carbon monoxide in sintering flue gas, comprising a base; a first pipe fixedly connected to the top of the base; a pair of connecting pipes fixedly connected to the outer circular wall of the first pipe; a box fixedly connected to the top of the first pipe; a detachable door provided on one side of the box; air boxes fixedly connected to both sides of the box; a second pipe fixedly connected to the top of the box; an exhaust pipe fixedly connected to the top of the second pipe; a first through groove opened inside the box; a bag filter slidably connected within the first through groove; a power component fixedly connected to the top of the box; the power component is used to drive the bag filter to move.

[0006] Preferably, the power component includes a first motor; the first motor is fixedly connected to the top of the housing; the output end of the first motor is provided with a first lead screw; one end of the first lead screw passes through the inside of the housing and is rotatably connected to the bottom of the housing; a detachable first connecting block is provided on one side of the bag filter; the detachable first connecting block is connected to the first lead screw through a lead screw and nut pair.

[0007] Preferably, a pair of first limiting plates are fixedly connected inside the housing; second connecting blocks are fixedly connected to both sides of the bag filter; a second through groove is opened at one top of each pair of second connecting blocks; the pair of second connecting blocks are slidably connected to the first limiting plates through the second through grooves.

[0008] Preferably, a hollow tube is fixedly connected inside the base; a turntable is rotatably connected to the top of the hollow tube; a set of first connecting rods is fixedly connected to the outer circular wall of the turntable; the first pipe communicates with the base; a first rotating ring is rotatably connected inside the first pipe; a pair of scrapers are fixedly connected to the top of the first rotating ring; a second rotating ring is fixedly connected to the top of the pair of scrapers; a transmission component is provided inside the first pipe; the transmission component is used to drive the turntable to rotate.

[0009] Preferably, the transmission component includes a second motor; the second motor is fixedly connected inside the hollow tube; the output end of the second motor is provided with a rotating shaft; one end of the rotating shaft is fixedly connected to the bottom end of the turntable.

[0010] Preferably, the base has a set of dust discharge ports at its bottom end; a set of cleaning brushes is rotatably connected inside the base; each of the cleaning brushes has a connecting post fixedly connected to its top end; and each of the connecting posts is fixedly connected to a pair of first connecting rods.

[0011] Preferably, a handle is fixed to one side of the detachable door.

[0012] Preferably, the bottom of the base is provided with a rubber pad.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The carbon monoxide catalytic reaction device for sintering flue gas described in this utility model is provided by setting a base, fixing the top of the base to a first pipe, and fixing a pair of first connecting pipes to the outer circular wall of the first pipe. The pair of first connecting pipes can allow flue gas to enter the interior of the first pipe, and then filter the flue gas by the bag filter inside the first channel. After the operator removes the detachable box door, the bag filter can be lifted and lowered as a whole through the first channel in cooperation with the power component, so as to facilitate the removal of the bag filter box and complete the disassembly of the bag filter.

[0015] 2. The sintering flue gas carbon monoxide catalytic reaction device of this utility model, by fixing a pair of first limiting plates inside the box and fixing second connecting blocks on both sides of the bag filter, when the power component drives the bag filter to move downward in the first channel, the first limiting plates will gradually move above the first limiting plates and slide on the first limiting plates through the second channel. This can restrict the bag filter during operation. The first limiting plates and the second connecting blocks form a double guiding structure to ensure that the bag filter does not deviate or shake during the up and down movement. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2This is the front view of this utility model;

[0018] Figure 3 yes Figure 2 Enlarged view of A in the middle;

[0019] Figure 4 This is a partial structural schematic diagram of the present invention;

[0020] Figure 5 yes Figure 4 A magnified view of B in the middle.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Base; 2. First pipe; 3. Connecting pipe; 4. Box body; 5. Removable box door; 6. Air box; 7. Second pipe; 8. Exhaust pipe; 9. First through slot; 10. Bag dust collector; 11. First motor; 12. First lead screw; 13. First connecting block; 14. First limiting plate; 15. Second connecting block; 16. Second through slot; 17. Hollow tube; 18. Turntable; 19. First connecting rod; 20. First rotating ring; 21. Scraper; 22. Second rotating ring; 23. Second motor; 24. Rotating shaft; 25. Ash discharge port; 26. Cleaning brush; 27. Connecting column; 28. Handle. Detailed Implementation

[0023] To explain in detail the technical content, structural features, objectives, and effects of the technical solution, the following description is provided in conjunction with specific embodiments and accompanying drawings.

[0024] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0025] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0026] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0027] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0028] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0029] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0030] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0031] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0032] like Figures 1 to 5 As shown in the embodiment of this utility model, a carbon monoxide catalytic reaction device for sintering flue gas includes a base 1; a first pipe 2 is fixedly connected to the top of the base 1; a pair of connecting pipes 3 are fixedly connected to the outer circular wall of the first pipe 2; a box 4 is fixedly connected to the top of the first pipe 2; a detachable box door 5 is provided on one side of the box 4; air boxes 6 are fixedly connected to both sides of the box 4; a second pipe 7 is fixedly connected to the top of the box 4; an exhaust pipe 8 is fixedly connected to the top of the second pipe 7; a first through groove 9 is opened inside the box 4; a bag filter 10 is slidably connected in the first through groove 9; and a... Power component; The power component is used to drive the bag filter 10 to move. During operation, a base 1 is set up, and the top of the base 1 is fixed to the first pipe 2. A pair of first connecting pipes 3 are fixed to the outer circular wall of the first pipe 2. The pair of first connecting pipes 3 can allow flue gas to enter the interior of the first pipe 2. Then, the bag filter 10 inside the first channel 9 filters the flue gas. After the operator removes the detachable box door 5, the bag filter 10 can be lifted and lowered as a whole through the first channel 9 in cooperation with the power component, so as to facilitate the removal of the bag filter 10 from the box 4 and complete the disassembly of the bag filter 10.

[0033] The power component includes a first motor 11; the first motor 11 is fixed to the top of the housing 4; the output end of the first motor 11 is provided with a first lead screw 12; one end of the first lead screw 12 passes through the interior of the housing 4 and is rotatably connected to the bottom of the interior of the housing 4; a detachable first connecting block 13 is provided on one side of the bag filter 10; the detachable first connecting block 13 is connected to the first lead screw 12 through a lead screw and nut pair. During operation, by fixing the first motor 11 to the top of the housing 4 and providing the first lead screw 12 at the output end of the first motor 11, the first motor 11 and the first lead screw 12 constitute a precision transmission system. The rotational motion is converted into linear motion through the lead screw and nut pair, realizing the lifting and lowering of the bag filter 10. The detachable first connecting block 13 allows the bag filter 10 to be quickly separated from the lead screw system, facilitating individual maintenance or replacement. After removing the first connecting block 13, the bag module can be lifted out as a whole, shortening the replacement time.

[0034] A pair of first limiting plates 14 are fixedly connected inside the housing 4; a pair of second connecting blocks 15 are fixedly connected to both sides of the bag filter 10; a pair of second connecting blocks 15 each has a second through groove 16 at one top; the pair of second connecting blocks 15 are slidably connected to the first limiting plates 14 through the second through groove 16. During operation, by fixing a pair of first limiting plates 14 inside the housing 4 and fixing the second connecting blocks 15 to both sides of the bag filter 10, when the power component drives the bag filter 10 to move downward in the first through groove 9, the first limiting plates 14 will gradually move above the first limiting plates 14 and slide on the first limiting plates 14 through the second through groove 16. This can restrict the bag filter 10 during operation. The first limiting plates 14 and the second connecting blocks 15 form a double guiding structure to ensure that the bag filter 10 does not deviate or shake during the up and down movement.

[0035] A hollow tube 17 is fixedly connected inside the base 1; a turntable 18 is rotatably connected to the top of the hollow tube 17; a set of first connecting rods 19 are fixedly connected to the outer circular wall of the turntable 18; the first pipe 2 is connected to the base 1; a first rotating ring 20 is rotatably connected inside the first pipe 2; a pair of scrapers 21 are fixedly connected to the top of the first rotating ring 20; a second rotating ring 22 is fixedly connected to the top of the pair of scrapers 21; a transmission component is provided inside the first pipe 2; the transmission component is used to drive the turntable 18 to rotate. During operation, by setting the first rotating ring 20 and the second rotating ring 22 inside the first pipe 2, and setting a pair of scrapers 21 between the first rotating ring 20 and the second rotating ring 22, when the transmission component drives the turntable 18 to rotate, a set of first connecting rods 19 drives a rotating ring to rotate, causing the pair of scrapers 21 to rotate inside the first pipe 2, and scraping the inner circular wall of the first pipe 2 to remove ash. This enables the equipment to achieve an automatic ash removal structure, which can significantly improve the system's ash removal efficiency, reduce maintenance costs, and extend the equipment's lifespan.

[0036] The transmission component includes a second motor 23; the second motor 23 is fixed inside the hollow tube 17; the output end of the second motor 23 is provided with a rotating shaft 24; one end of the rotating shaft 24 is fixed to the bottom end of the turntable 18. During operation, by estimating the second motor 23 inside the hollow tube 17, the second motor 23 drives the turntable 18 to rotate, which in turn drives a pair of scrapers 21 to rotate inside the first pipe 2, thereby scraping the ash from the inner wall of the first pipe 2. This allows for continuous scraping of the ash accumulated on the inner wall of the pipe during equipment operation, reducing equipment downtime.

[0037] The base 1 has a set of dust discharge ports 25 at its bottom end; a set of cleaning brushes 26 are rotatably connected inside the base 1; each of the cleaning brushes 26 has a connecting post 27 fixedly connected to its top end; the connecting posts 27 are respectively fixedly connected to a pair of first connecting rods 19. During operation, by opening a pair of dust discharge ports 25 at the bottom end of the base 1 and setting a set of cleaning brushes 26 inside the base 1, the dust scattered inside the base 1 can be cleaned and discharged from the dust discharge ports 25, thus preventing the dust from corroding the base 1.

[0038] A handle 28 is fixedly attached to one side of the detachable door 5. During operation, by fixing the handle 28 to one side of the detachable door 5, the detachable door 5 can be supported by the staff when disassembling it.

[0039] The bottom of the base 1 is provided with a rubber pad. During operation, the rubber pad is provided at the bottom of the base 1 because the rubber pad has good elastic deformation ability, which can effectively absorb and disperse vibration energy and reduce the vibration transmitted to the foundation or supporting structure.

[0040] Working principle: A base 1 is set up, and a first pipe 2 is fixed to the top of the base 1. A pair of first connecting pipes 3 are fixed to the outer circular wall of the first pipe 2. The pair of first connecting pipes 3 allows the flue gas to enter the interior of the first pipe 2. Then, the bag filter 10 inside the first channel 9 filters the flue gas. After the operator removes the detachable box door 5, the bag filter 10 can be lifted and lowered as a whole through the first channel 9 in cooperation with the power component, making it easy to remove the bag filter 10 from the box 4 and complete the disassembly of the bag filter 10. A first motor 11 is fixed to the top of the box 4, and a first lead screw 12 is set at the output end of the first motor 11. The first motor 11 and the first lead screw 12 form a precision transmission system, which is connected by the lead screw nut. The auxiliary component converts rotary motion into linear motion, enabling the lifting and lowering of the bag filter 10. The detachable first connecting block 13 allows for quick separation of the bag filter 10 from the screw system, facilitating individual maintenance or replacement. After removing the first connecting block 13, the bag module can be lifted out as a whole, shortening replacement time. By fixing a pair of first limiting plates 14 inside the housing 4 and second connecting blocks 15 on both sides of the bag filter 10, when the power component drives the bag filter 10 downwards within the first through slot 9, the first limiting plates 14 gradually move above the first limiting plate 14 and slide on the first limiting plate 14 through the second through slot 16. This allows for restriction of the bag filter 10 during operation. The first limiting plate 14 and the second connecting block 15... The two connecting blocks 15 form a double guiding structure to ensure that the bag filter 10 does not shift or shake during its up-and-down movement. A first rotating ring 20 and a second rotating ring 22 are set inside the first pipe 2, and a pair of scrapers 21 are set between the first rotating ring 20 and the second rotating ring 22. When the transmission component drives the turntable 18 to rotate, a set of first connecting rods 19 drives one rotating ring to rotate, causing the pair of scrapers 21 to rotate inside the first pipe 2, scraping the inner wall of the first pipe 2. This enables the equipment to achieve an automatic dust removal structure, significantly improving the system's dust removal efficiency, reducing maintenance costs, and extending equipment life. A second motor 23 is installed inside the hollow tube 17, which drives the turntable 18 to rotate, driving the pair of scrapers... Plate 21 rotates inside the first pipe 2 to scrape the inner wall of the first pipe 2. It can continuously scrape the dust accumulated on the inner wall of the pipe during equipment operation, reducing equipment downtime. By opening a pair of dust discharge ports 25 at the bottom of the base 1 and setting a set of cleaning brushes 26 inside the base 1, the dust scattered inside the base 1 can be cleaned and discharged from the dust discharge ports 25 to avoid dust corrosion of the base 1. By fixing a handle 28 to one side of the detachable box door 5, the detachable box door 5 can be supported when the operator disassembles it. The rubber pad is set at the bottom of the base 1 because the rubber pad has good elastic deformation ability and can effectively absorb and disperse vibration energy, reducing the vibration transmitted to the foundation or supporting structure.

[0041] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0042] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

[0044] 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 the 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 carbon monoxide catalytic reaction device for sintering flue gas, characterized in that: The device includes a base (1); a first pipe (2) is fixedly connected to the top of the base (1); a pair of connecting pipes (3) are fixedly connected to the outer circular wall of the first pipe (2); a box (4) is fixedly connected to the top of the first pipe (2); a detachable box door (5) is provided on one side of the box (4); air boxes (6) are fixedly connected to both sides of the box (4); a second pipe (7) is fixedly connected to the top of the box (4); an exhaust pipe (8) is fixedly connected to the top of the second pipe (7); a first through groove (9) is opened inside the box (4); a bag filter (10) is slidably connected in the first through groove (9); a power component is fixedly connected to the top of the box (4); the power component is used to drive the bag filter (10) to move.

2. The catalytic reaction device for carbon monoxide in sintering flue gas according to claim 1, characterized in that: The power component includes a first motor (11); the first motor (11) is fixed to the top of the housing (4); the output end of the first motor (11) is provided with a first lead screw (12); one end of the first lead screw (12) passes through the inside of the housing (4) and is rotatably connected to the bottom of the inside of the housing (4); a detachable first connecting block (13) is provided on one side of the bag filter (10); the detachable first connecting block (13) is connected to the first lead screw (12) through a lead screw nut pair.

3. The catalytic reaction device for carbon monoxide in sintering flue gas according to claim 2, characterized in that: The housing (4) has a pair of first limiting plates (14) fixed inside; the bag filter (10) has second connecting blocks (15) fixed on both sides; each of the pair of second connecting blocks (15) has a second through groove (16) at one top; the pair of second connecting blocks (15) are slidably connected to the first limiting plates (14) through the second through groove (16).

4. The catalytic reaction device for carbon monoxide in sintering flue gas according to claim 3, characterized in that: A hollow tube (17) is fixedly connected inside the base (1); a turntable (18) is rotatably connected to the top of the hollow tube (17); a set of first connecting rods (19) is fixedly connected to the outer circular wall of the turntable (18); the first pipe (2) is connected to the base (1); a first rotating ring (20) is rotatably connected inside the first pipe (2); a pair of scrapers (21) are fixedly connected to the top of the first rotating ring (20); a second rotating ring (22) is fixedly connected to the top of the pair of scrapers (21); a transmission component is provided inside the first pipe (2); the transmission component is used to drive the turntable (18) to rotate.

5. The catalytic reaction device for carbon monoxide in sintering flue gas according to claim 4, characterized in that: The transmission component includes a second motor (23); the second motor (23) is fixed inside the hollow tube (17); the output end of the second motor (23) is provided with a rotating shaft (24); one end of the rotating shaft (24) is fixed to the bottom end of the turntable (18).

6. The catalytic reaction device for carbon monoxide in sintering flue gas according to claim 5, characterized in that: The base (1) has a set of ash discharge ports (25) at the bottom; a set of cleaning brushes (26) are rotatably connected inside the base (1); a set of cleaning brushes (26) are fixedly connected to the top of each set of cleaning brushes (26); a set of connecting posts (27) are fixedly connected to a pair of first connecting rods (19).

7. The catalytic reaction device for carbon monoxide in sintering flue gas according to claim 6, characterized in that: A handle (28) is fixed to one side of the detachable door (5).

8. The catalytic reaction device for carbon monoxide in sintering flue gas according to claim 7, characterized in that: The base (1) has a rubber pad at its bottom.