Removable catalyst scr reactor

Abstract

This utility model relates to the technical field of SCR denitrification equipment, specifically a detachable catalyst SCR reactor, including a main component. The main component includes a shell, an air inlet and an air outlet located at both ends of the shell, and a cover hinged to the top side of the shell. A single-unit disassembly port is provided inside the cover, and a sealing disassembly assembly is installed inside the single-unit disassembly port. A catalyst assembly is installed inside the shell. This utility model, through its single-unit disassembly port and sliding catalyst layer, requires only 30-60 minutes for a single replacement, shortening the time by more than 80% compared to traditional overall disassembly. It also eliminates the need for a complete production line shutdown, requiring only a pause of the single catalyst unit. Furthermore, this utility model, through a double sealing ring and spring reset structure, ensures a reactor leakage rate of ≤0.5%, far superior to traditional equipment, guaranteeing denitrification efficiency. This utility model also eliminates the need for multiple operators for single-unit operation and avoids seal aging caused by repeated opening and closing of the cover.

Description

Technical Field

[0001] This utility model relates to the technical field of SCR denitrification equipment, specifically a detachable catalyst SCR reactor. Background Technology

[0002] SCR reactors are the core equipment for industrial waste gas denitrification, which reduces NOx in waste gas to nitrogen through a catalyst layer. Traditional SCR reactors often use fixed-installation catalysts, which has two major drawbacks: 1) Inconvenient catalyst replacement: The entire chamber cover must be opened to remove the catalyst, which is time-consuming (4-6 hours per replacement) and requires shutdown, affecting production continuity; 2) Poor sealing effect: Repeated opening and closing of the chamber cover can easily lead to aging of the chamber's sealing structure, increasing the waste gas leakage rate (usually >2%), which not only reduces denitrification efficiency but also causes environmental pollution; 3) High maintenance costs: Complete disassembly of the chamber requires multiple people to work together and can easily damage other components inside the chamber, increasing equipment operation and maintenance costs.

[0003] While some existing technologies employ segmented SCR reactors, they still require disassembling the sections to replace the catalyst, failing to achieve precise disassembly of a single unit and thus failing to fundamentally solve the aforementioned problems. Therefore, a detachable catalyst SCR reactor is proposed. Utility Model Content

[0004] In view of this, the present invention provides a detachable catalyst SCR reactor, which aims to solve one of the technical problems of long catalyst replacement time, easy seal failure and high maintenance cost in the prior art of SCR reactor.

[0005] The technical solution of this utility model embodiment is implemented as follows: a detachable catalyst SCR reactor includes a main body component, the main body component includes a shell, an air inlet and an air outlet located at both ends of the shell, a cover is hinged to the top side of the shell, a single set of disassembly ports is opened inside the cover, a sealing disassembly component is installed inside the single set of disassembly ports, and a catalyst component is installed inside the shell.

[0006] A further preferred embodiment has an inspection door hinged to one side of the housing.

[0007] A further preferred embodiment: a support frame is fixedly connected to the bottom of the housing.

[0008] A further preferred embodiment: the sealing disassembly assembly includes a handle, a sealing disc, a groove, a sealing plate, a connecting rod, a limiting plate, and a spring; the handle is positioned above the sealing plate; the upper surface of the sealing plate has a groove, the sealing disc can be compressed downwards and is positioned within the groove; a circular hole is provided within the groove; The limiting plate is located on the lower surface of the sealing plate. The connecting rod passes through the circular hole, and its two end faces are respectively connected to the lower surface of the sealing plate and the upper surface of the limiting plate. The spring is sleeved inside the connecting rod, and its two end faces abut against the lower surface of the sealing plate and the upper surface of the limiting plate, respectively.

[0009] A further preferred embodiment: the outer wall of the sealing disc is inlaid with a first sealing ring, the outer wall of the first sealing ring being tightly fitted with the inner wall of the groove; the outer wall of the sealing plate is inlaid with a second sealing ring, the outer wall of the second sealing ring being tightly fitted with the inner wall of the single disassembly port.

[0010] A further preferred embodiment: the catalytic assembly includes a placement tank, a catalyst layer, a placement rack, and a filter screen. The placement tank is equipped with a placement rack, the placement rack is slidably connected to the inside of the placement rack, and a filter screen is disposed below the catalyst layer.

[0011] Further preferred: the single disassembly port corresponds to at least three catalyst layers.

[0012] The present invention has the following advantages over the prior art: 1. This utility model, through a single disassembly port and a sliding catalyst layer, requires only 30-60 minutes for a single replacement, which is more than 80% shorter than the traditional whole compartment disassembly. Moreover, it does not require stopping the entire production line, but only requires pausing a single catalyst unit.

[0013] 2. This utility model, through a double sealing ring and spring reset structure, ensures that the reactor leakage rate is ≤0.5%, which is far superior to traditional equipment and guarantees denitrification efficiency.

[0014] 3. This utility model allows for single-unit operation without the need for multiple people to work together, and avoids sealing aging caused by repeated opening and closing of the hatch. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a structural diagram of the present invention; Figure 2 This is a diagram showing the internal structure of the catalytic component of this utility model; Figure 3 This is a structural diagram of the hatch of this utility model when it is open; Figure 4 This is a structural diagram of the hatch cover of this utility model; Figure 5This is a schematic diagram of the sealing and disassembly assembly of this utility model.

[0017] Figure label: 10. Main body components; 101. Shell; 102. Air inlet; 103. Air outlet; 104. Hatch cover; 1041. Single unit disassembly port; 105. Inspection door; 106. Support frame; 20. Sealing disassembly assembly; 201. Handle; 202. Sealing disc; 2021. First sealing ring; 203. Groove; 204. Sealing plate; 205. Second sealing ring; 206. Connecting rod; 207. Limiting plate; 208. Spring; 30. Catalytic assembly; 301. Placement tank; 302. Catalyst layer; 303. Placement rack; 304. Filter screen. Detailed Implementation

[0018] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive. Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0019] Example like Figures 1-5 As shown, this utility model embodiment provides a detachable catalyst SCR reactor, including a main body component 10. The main body component 10 includes a shell 101, an air inlet 102 and an air outlet 103 located at both ends of the shell 101. A cover 104 is hinged to one side of the top of the shell 101. A single disassembly port 1041 is provided inside the cover 104. A sealing disassembly component 20 is installed inside the single disassembly port 1041. A catalyst component 30 is installed inside the shell 101.

[0020] In this embodiment, specifically: an inspection door 105 is hinged to one side of the housing 101.

[0021] In this embodiment, specifically: a support frame 106 is fixedly connected to the bottom of the housing 101.

[0022] In this embodiment, specifically: the sealing disassembly assembly 20 includes a handle 201, a sealing disc 202, a groove 203, a sealing plate 204, a connecting rod 206, a limiting plate 207, and a spring 208. The handle 201 is disposed above the sealing plate 204; the upper surface of the sealing plate 204 is provided with a groove 203, the sealing disc 202 can be compressed downwards and is disposed within the groove 203; a circular hole is provided within the groove 203. The limiting plate 207 is located on the lower surface of the sealing plate 204. The connecting rod 206 passes through the circular hole, and its two end faces are respectively connected to the lower surface of the sealing plate 202 and the upper surface of the limiting plate 207. The spring 208 is sleeved in the connecting rod 206, and its two end faces abut against the lower surface of the sealing plate 202 and the upper surface of the limiting plate 207.

[0023] In this embodiment, specifically: the outer wall of the sealing disc 202 is inlaid with a first sealing ring 2021, the outer wall of the first sealing ring 2021 is tightly fitted with the inner wall of the groove 203, and the outer wall of the sealing plate 204 is inlaid with a second sealing ring 205, the outer wall of the second sealing ring 205 is tightly fitted with the inner wall of the single disassembly port 1041.

[0024] In this embodiment, specifically: the catalytic component 30 includes a placement tank 301, a catalyst layer 302, a placement rack 303, and a filter screen 304. The placement tank 301 is equipped with a placement rack 303, and the placement rack 303 is slidably connected to the inside of the placement rack 303. The filter screen 304 is disposed below the catalyst layer 302.

[0025] In this embodiment, specifically: the single disassembly port 1041 corresponds to at least three catalyst layers 302.

[0026] In this embodiment, specifically: Main component 10: Shell 101: Welded from Q235 steel plate, the shell has a rectangular structure (dimensions: length 4m × width 1.5m × height 2m) and serves as the core carrier of the reactor. The inner wall is coated with a high-temperature resistant and corrosion-resistant coating (thickness 0.5mm). Inlet 102 / Outlet 103: Welded to both ends of housing 101 respectively, with a diameter of φ500mm and built-in guide plate (tilt angle 20°) to guide the exhaust gas to flow evenly through the catalytic component; The hatch 104 is hinged to one side of the top of the housing 101. It is made of the same material as the housing and has 2-4 single-set disassembly ports 1041 inside (each disassembly port size: 800mm long × 300mm wide) to accommodate the arrangement of the catalytic converter. Inspection door 105: Hinged to the side of shell 101 (dimensions: 1.2m high × 0.8m wide), with built-in sealing strip, used for overall inspection of the reactor interior; Support frame 106: It is made of H-beams welded together, with a total of 4 sets, fixed to the bottom of the shell 101, with a support height of 0.5m to ensure the stability of the equipment.

[0027] The sealing and disassembly assembly 20 is adapted to be installed within a single disassembly port 1041 to achieve "quick disassembly and high sealing": Sealing plate 204: Made of 3mm thick stainless steel plate, its size matches the single disassembly port 1041, and a second sealing ring 205 (material: fluororubber, cross-sectional size φ10mm) is inlaid on the outside, which fits tightly against the inner wall of the disassembly port; Sealing disc 202: Set in the groove 203 of the sealing plate 204, made of wear-resistant engineering plastic, with a first sealing ring 2021 (same material as the second sealing ring) inlaid on the outside, and fits against the inner wall of the groove; Link 206 and spring 208: The link is a φ12mm stainless steel rod that passes through the round hole of the sealing plate and is connected at both ends to the sealing plate 202 and the limiting plate 207 respectively; the spring is a 60Si2Mn compression spring (wire diameter 2mm, free length 50mm) that is sleeved on the outside of the link to provide the reset force of the sealing plate. Handle 201: Welded above the sealing plate 204, it has a U-shaped structure (200mm in length) for easy manual operation.

[0028] The catalytic converter 30 is installed inside the housing 101 to enable exhaust gas denitrification and easy replacement. Placement slots 301: welded to the inner wall of housing 101, there are 2-4 sets in total, each corresponding to a single disassembly port 1041; Placement rack 303: Made of stainless steel square tube welded together, it slides and snaps into the placement slot 301, with 3-5 slides inside (spaced 200mm apart). Catalyst layer 302: is a honeycomb denitrification catalyst (dimensions: 800mm long × 200mm wide × 300mm high), which is slidably connected in the slide of the placement rack. Each set of disassembly ports 1041 corresponds to at least 3 catalyst layers, which can be directly pulled out and replaced through the disassembly ports. Filter screen 304: Made of stainless steel woven mesh (20 mesh), fixed to the bottom of the placement frame 303 to intercept particulate matter in the exhaust gas and prevent catalyst blockage.

[0029] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. Removable catalyst SCR reactor comprising a main body assembly (10) characterised in that: The main component (10) includes a housing (101), an air inlet (102) and an air outlet (103) located at both ends of the housing (101). A hatch (104) is hinged to one side of the top of the housing (101). A single disassembly port (1041) is provided inside the hatch (104). A sealing disassembly assembly (20) is installed inside the single disassembly port (1041). A catalyst assembly (30) is installed inside the housing (101).

2. The detachable catalyst SCR reactor according to claim 1, characterized in that: An inspection door (105) is hinged to one side of the housing (101).

3. The detachable catalyst SCR reactor according to claim 1, characterized in that: The bottom of the housing (101) is fixedly connected to a support frame (106).

4. The detachable catalyst SCR reactor of claim 1, wherein: The sealing disassembly assembly (20) includes a handle (201), a sealing disc (202), a groove (203), a sealing plate (204), a connecting rod (206), a limiting plate (207), and a spring (208). The handle (201) is positioned above the sealing plate (204). The upper surface of the sealing plate (204) is provided with a groove (203). The sealing disc (202) can be compressed downwards and is positioned within the groove (203). A circular hole is provided within the groove (203). The limiting plate (207) is located on the lower surface of the sealing plate (204), the connecting rod (206) passes through the round hole, and its two end faces are respectively connected to the lower surface of the sealing plate (202) and the upper surface of the limiting plate (207); the spring (208) is sleeved in the connecting rod (206), and its two end faces abut against the lower surface of the sealing plate (202) and the upper surface of the limiting plate (207).

5. The detachable catalyst SCR reactor of claim 4, wherein: The outer wall of the sealing disc (202) is inlaid with a first sealing ring (2021), and the outer wall of the first sealing ring (2021) is tightly fitted with the inner wall of the groove (203). The outer wall of the sealing plate (204) is inlaid with a second sealing ring (205), and the outer wall of the second sealing ring (205) is tightly fitted with the inner wall of the single disassembly port (1041).

6. The detachable catalyst SCR reactor according to claim 1, characterized in that: The catalyst assembly (30) includes a placement tank (301), a catalyst layer (302), a placement rack (303), and a filter screen (304). The placement tank (301) is equipped with a placement rack (303), and the placement rack (302) is slidably connected to the inside of the placement rack (303). The filter screen (304) is disposed below the catalyst layer (302).

7. The detachable catalyst SCR reactor of claim 6, wherein: The single disassembly port (1041) corresponds to at least three catalyst layers (302).

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