Sintering flue gas denitration reaction tower with CO removal catalyst module capable of being rapidly disassembled and assembled
By designing a rapidly disassembled and assembled deCO catalyst module, the sliding combination of the slide rail beam and the support beam is used to solve the catalytic failure problem caused by contact of the deCO catalyst in high sulfur flue gas, and the rapid protection of the catalyst and economical operation of the equipment are achieved.
Patent Information
- Application Number
- CN202422036247.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-08-21
AI Technical Summary
In the prior art, long-term contact of deCO catalysts in high sulfur flue gas will lead to catalyst sulfur poisoning and catalytic failure, and it is difficult to quickly disassemble and assemble the protective catalyst in case of equipment failure.
A quick disassembly and assembled deCO catalyst module is designed. By setting a slide rail beam on the module and a support beam is set in the body of the reaction tower, the slide rail beam and the support beam are slidably cooperated to achieve rapid sliding out and sliding in the deCO catalyst module.
It realizes the rapid disassembly and assembly of the deCO catalyst module when the desulfurization device fails, protects the catalyst, reduces economic losses in the event of equipment failure, and avoids flue gas pollution.
Smart Images
Figure CN222998576U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of CO treatment of sintering machine flue gas in the iron and steel industry, and particularly relates to a sintering flue gas denitration reaction tower for quickly disassembling and assembling a CO removal catalyst module. Background Art
[0002] Sintering flue gas needs to undergo dust removal, desulfurization and denitration treatment to meet the emission standards before it can be discharged from the chimney. At present, some regions require the treatment of CO in sintering flue gas. In the current CO treatment technology, the end treatment process is the CO catalytic combustion process, which requires the use of a CO removal catalyst. This kind of catalyst is sensitive to SO2. However, the ultra-low emission system of flue gas has many devices and many fault points. When the desulfurization system fails for a long time, the flue gas in contact with the CO removal catalyst is high-sulfur flue gas. The long-term contact between the high-sulfur flue gas and the CO removal catalyst will damage the CO removal catalyst. Content of the Utility Model
[0003] The utility model provides a sintering flue gas denitration reaction tower for quickly disassembling and assembling a CO removal catalyst module to solve one or several of the technical problems existing in the prior art.
[0004] The technical solution of the utility model to solve the above technical problems is as follows: A sintering flue gas denitration reaction tower for quickly disassembling and assembling a CO removal catalyst module includes a reaction tower body and a CO removal catalyst module. A support beam is arranged in the reaction tower body. A slide rail beam is arranged on the CO removal catalyst module. The slide rail beam is slidably arranged on the support beam. An inspection port is arranged on the reaction tower body. An inspection door is installed at the inspection port. The inspection port is arranged corresponding to the CO removal catalyst module. The CO removal catalyst module can slide into or out of the reaction tower body from the inspection door.
[0005] The beneficial effect of the utility model is that: For the sintering flue gas denitration reaction tower for quickly disassembling and assembling a CO removal catalyst module of the utility model, by arranging a slide rail beam on the CO removal catalyst module and arranging a support beam in the reaction tower body, the slide rail beam and the support beam are slidably matched. When the desulfurization device fails, the CO removal catalyst module can be slid out of the reaction tower body, so that the CO removal catalyst module can be quickly disassembled and assembled, playing a role in protecting the CO removal catalyst module.
[0006] On the basis of the above technical solution, the utility model can also be improved as follows.
[0007] Further, one inspection port is arranged on each of the opposite side walls of the reaction tower body, and one inspection door is arranged on each inspection port.
[0008] Further, the CO removal catalyst module includes two sets of CO removal catalyst packing blocks arranged side by side. Each set of CO removal catalyst packing blocks is provided with a slide rail beam, and each set of CO removal catalyst packing blocks is arranged opposite to an inspection opening.
[0009] The beneficial effect of adopting the above further solution is: it is convenient to separately extract the two sets of CO removal catalyst packing blocks from the two inspection openings, which is more convenient and reliable.
[0010] Further, there are multiple support beams. The multiple support beams are arranged in parallel at intervals, and both ends of each support beam are fixedly connected to the inner side wall of the reaction tower body.
[0011] Further, one of the support beam and the slide rail beam is a chute structure, and the other is a slide bar structure. The slide bar structure is adapted to be snapped into the chute structure, and the slide bar structure and the chute structure can slide relative to each other.
[0012] Further, a circle of inspection platforms is also provided around the outer side wall of the reaction tower body. The inspection platforms are fixed on the outer side wall of the reaction tower body or arranged at intervals with the outer side wall of the reaction tower body.
[0013] The beneficial effect of adopting the above further solution is: the setting of the inspection platforms facilitates the disassembly and assembly of the CO removal catalyst packing blocks.
[0014] Further, the inspection door includes two door bodies that can slide relative to each other to open or close.
[0015] The beneficial effect of adopting the above further solution is: it is convenient to open the inspection opening.
[0016] Further, a first flue gas valve and a second flue gas valve are also provided in the reaction tower body. The first flue gas valve and the second flue gas valve are respectively installed on the upper and lower sides of the CO removal catalyst module and are used to cut off the up and down flow of flue gas in the reaction tower body.
[0017] Further, a group of first rake soot blowers using compressed air or inert gas as the purging medium are also provided between the CO removal catalyst module and the first flue gas valve.
[0018] The beneficial effect of adopting the above further solution is: the CO removal catalyst module can be purged by the first rake soot blower, and the CO removal catalyst module can be placed in a safe atmosphere environment.
[0019] Further, a denitration catalyst module and a second rake soot blower are also provided in the reaction tower body. The denitration catalyst module is installed above the first flue gas valve, and a group of second rake soot blowers using compressed air or inert gas as the purging medium are provided above each layer of the denitration catalyst module. Description of the Drawings
[0020] Figure 1 This is a schematic diagram of the internal structure of a sintered flue gas denitration reaction tower for a CO-removing catalyst module with quick disassembly and assembly of the present utility model;
[0021] Figure 2 is Figure 1 an enlarged schematic diagram of part A in
[0022] Figure 3 This is a top view structural schematic diagram of the CO-removing catalyst module of the present utility model.
[0023] In the attached drawings, the list of components represented by each reference numeral is as follows:
[0024] 1. Reaction tower body; 11. Support beam; 12. Inspection door; 13. First flue gas valve; 14. Second flue gas valve; 15. First rake-type soot blower; 16. Second rake-type soot blower; 17. Denitration catalyst module; 18. Desulfurization device; 19. Chimney;
[0025] 2. CO-removing catalyst module; 21. CO-removing catalyst packing block; 22. Slide rail beam;
[0026] 3. Inspection platform; 4. Purge medium source; 41. Valve. Specific embodiments
[0027] The principles and features of the present utility model will be described below with reference to the attached drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.
[0028] As Figures 1 to 3 shown, a sintered flue gas denitration reaction tower for a CO-removing catalyst module with quick disassembly and assembly in this embodiment includes a reaction tower body 1 and a CO-removing catalyst module 2. A support beam 11 is provided inside the reaction tower body 1. A slide rail beam 22 is provided on the CO-removing catalyst module 2. The slide rail beam 22 is slidably arranged on the support beam 11. An inspection opening is provided on the reaction tower body 1, and an inspection door 12 is installed at the inspection opening. The inspection opening is arranged corresponding to the CO-removing catalyst module 2. The CO-removing catalyst module 2 can slide into or out of the reaction tower body 1 from the inspection door 12.
[0029] As Figure 3 shown, one inspection opening is provided on each of the opposite side walls of the reaction tower body 1 in this embodiment, and an inspection door 12 is provided on each inspection opening.
[0030] As Figure 3As shown in the figure, the CO removal catalyst module 2 of this embodiment includes two groups of CO removal catalyst packing blocks 21 arranged side by side. Each group of CO removal catalyst packing blocks 21 is provided with a slide rail beam 22, and each group of CO removal catalyst packing blocks 21 is arranged opposite to an inspection port. It is convenient to draw out the two groups of CO removal catalyst packing blocks from the two inspection ports respectively, which is more convenient and reliable.
[0031] As Figure 1 shown in the figure, there are multiple support beams 11 in this embodiment. The multiple support beams 11 are arranged in parallel at intervals, and both ends of each support beam 11 are fixedly connected to the inner side wall of the reaction tower body 1.
[0032] Optionally, one of the support beam 11 and the slide rail beam 22 is a chute structure, and the other is a slide bar structure. The slide bar structure is adapted to be snapped into the chute structure, and the slide bar structure and the chute structure can slide relative to each other.
[0033] Specifically, the support beam 11 adopts a slidable support beam. The support beam 11 can be arranged perpendicular to the inspection port. The support beam 11 can be arranged on the side wall of the reaction tower body 1 below the inspection port.
[0034] As Figure 3 shown in the figure, a circle of inspection platforms 3 is also provided around the outer side wall of the reaction tower body 1 of this embodiment. The inspection platforms 3 are fixed on the outer side wall of the reaction tower body 1 or arranged at intervals with the outer side wall of the reaction tower body 1. The setting of the inspection platform facilitates the disassembly and assembly of the CO removal catalyst packing blocks.
[0035] Specifically, the inspection door 12 includes two door bodies that can slide relative to each other to open or close. The door bodies have good sealing performance with the reaction tower body 1 to prevent flue gas from flowing out. Using two door bodies that can slide relative to each other to open or close facilitates opening the inspection port.
[0036] As Figure 1 shown in the figure, a first flue gas valve 13 and a second flue gas valve 14 are further provided in the reaction tower body 1 of this embodiment. The first flue gas valve 13 and the second flue gas valve 14 are respectively installed on the upper and lower sides of the CO removal catalyst module 2 and are used to cut off the up and down flow of flue gas in the reaction tower body 1.
[0037] As Figure 1 shown in the figure, a group of first rake soot blowers 15 using compressed air or inert gas as the purging medium is also provided between the CO removal catalyst module 2 and the first flue gas valve 13. The CO removal catalyst module can be purged through the first rake soot blower to place the CO removal catalyst module in a safe atmosphere environment.
[0038] As Figure 1As shown in the figure, a denitration catalyst module 17 and a second rake-type soot blower 16 are further provided in the reaction tower body 1 of this embodiment. The denitration catalyst module 17 is installed above the first flue gas valve 13, and a group of second rake-type soot blowers 16 using compressed air or inert gas as the purging medium are provided above each layer of the denitration catalyst module 17. The bottom of the reaction tower body 1 is communicated with a chimney 19.
[0039] The first rake-type soot blower 15 is communicated with the main purging pipeline where the purging medium source 4 is located through a first branch, and the second rake-type soot blower 16 is communicated with the main purging pipeline where the purging medium source 4 is located through a second branch. A valve 41 is provided on the main purging pipeline. The top of the reaction tower body 1 is connected with a desulfurization device 18. The valves, desulfurization devices, rake-type soot blowers, etc. in this embodiment can adopt common structures in the art.
[0040] For the sintered flue gas denitration reaction tower with a quickly disassembled and assembled CO removal catalyst module in this embodiment, when the desulfurization device fails and cannot be repaired in a short time, the flue gas cannot be discharged from the system and needs to stay for a long time. The sintered flue gas staying in the denitration reaction tower body is high-sulfur flue gas. The long-term contact between the high-sulfur flue gas and the CO removal catalyst will cause sulfur poisoning of the CO removal catalyst and make its catalysis ineffective, and this kind of ineffectiveness cannot be restored. First, quickly close the first flue gas valve, and at the same time turn on the first rake-type soot blower to cut off the upstream flue gas and dilute the flue gas. Then, close the second flue gas valve and open the corresponding automatic maintenance door of the CO removal catalyst module at the same time. Next, use the slidable support beam to quickly move the CO removal catalyst module out of the denitration reaction tower body. After the desulfurization device returns to normal, the CO removal catalyst module can also be slid into the reaction tower body and restored for use. The denitration reaction tower of this embodiment can quickly disassemble and assemble the CO removal catalyst module when the desulfurization device fails for a long time and during the resumption of production, which plays a role in protecting the CO removal catalyst module and reducing the economic loss during equipment failure. Since the flue gas volume is small when the equipment is shut down and operating, it will not pollute the air when discharged into the air.
[0041] For the sintered flue gas denitration reaction tower with a quickly disassembled and assembled CO removal catalyst module in this embodiment, by arranging a slide rail beam on the CO removal catalyst module and a support beam in the reaction tower body, the slide rail beam and the support beam are slidably matched. When the desulfurization device fails, the CO removal catalyst module can be slid out of the reaction tower body, so that the CO removal catalyst module can be quickly disassembled and assembled, which plays a role in protecting the CO removal catalyst module.
[0042] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.
[0043] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.
[0044] In the present utility model, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0045] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.
[0046] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.
[0047] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.
Claims
1. A sintered flue gas denitration reaction tower with a quick disassembly and assembly of a CO removal catalyst module, characterized in that: The invention comprises a reaction tower body and a de-CO catalyst module, wherein a support beam is arranged in the reaction tower body, a slide rail beam is arranged on the de-CO catalyst module, the slide rail beam is slidably arranged on the support beam, an inspection port is arranged on the reaction tower body, an inspection door is installed at the inspection port, the inspection port is arranged corresponding to the de-CO catalyst module, and the de-CO catalyst module can slide into or out of the reaction tower body through the inspection door.
2. According to the sintered flue gas denitration reaction tower with a quick disassembly and assembly of a de-CO catalyst module according to claim 1, it is characterized in that: An inspection opening is respectively arranged on two opposite side walls of the reaction tower body, and each inspection opening is provided with an inspection door.
3. According to claim 2, a sintered flue gas denitration reaction tower with a quick disassembly and assembly of a CO removal catalyst module is characterized in that: The CO removal catalyst module comprises two groups of CO removal catalyst packing blocks arranged side by side, each group of CO removal catalyst packing blocks is provided with a slide rail beam, and each group of CO removal catalyst packing blocks is arranged opposite to an inspection port.
4. According to the sintering flue gas denitration reaction tower with a quick disassembly and assembly of a de-CO catalyst module as claimed in claim 1, it is characterized in that: There are multiple support beams, which are arranged in parallel and at intervals, and both ends of each support beam are fixedly connected to the inner wall of the reaction tower body.
5. According to the sintered flue gas denitration reaction tower with a quick disassembly and assembly of a CO removal catalyst module as claimed in claim 1, it is characterized in that: One of the support beam and the slide rail beam is a slide groove structure, and the other is a slide bar structure. The slide bar structure is adapted to be inserted into the slide groove structure, and the slide bar structure and the slide groove structure can slide relative to each other.
6. According to the sintered flue gas denitration reaction tower with a quick disassembly and assembly of a de-CO catalyst module as claimed in claim 1, it is characterized in that: A circle of maintenance platforms are also arranged around the outer side wall of the reaction tower body. The maintenance platforms are fixed on the outer side wall of the reaction tower body or arranged at intervals from the outer side wall of the reaction tower body.
7. According to claim 1, a sintered flue gas denitration reaction tower with a quick disassembly and assembly of a de-CO catalyst module is characterized in that: The inspection door comprises two door bodies which can slide relative to each other to open or close.
8. According to the sintering flue gas denitration reaction tower with a quick disassembly and assembly of a de-CO catalyst module as claimed in claim 1, it is characterized in that: The reaction tower body is also provided with a first flue gas valve and a second flue gas valve, which are respectively installed on the upper and lower sides of the de-CO catalyst module and are used to block the upward and downward flow of flue gas in the reaction tower body.
9. The sintered flue gas denitration reaction tower with a quick disassembly and assembly of a CO removal catalyst module according to claim 8, characterized in that: A group of first rake-type sootblowers using compressed air or inert gas as a purge medium is also provided between the CO removal catalyst module and the first flue gas valve.
10. The sintered flue gas denitration reaction tower with a quick disassembly and assembly of a CO removal catalyst module according to claim 8, characterized in that: The reaction tower body is also provided with a denitration catalyst module and a second rake soot blower. The denitration catalyst module is installed above the first flue gas valve. A group of second rake soot blowers using compressed air or inert gas as the purge medium is provided above each layer of the denitration catalyst module.