Ash removal device for SCR (Selective Catalytic Reduction) denitration reactor
By designing a cleaning device for SCR denitrification reactors, the cleaning agent is sprayed into the reactor using components such as water pumps and spray blocks, the ash blockage problem is solved, the catalyst activity and SCR denitrification effect are improved, and the system pressure drop and equipment operation cost are reduced.
Patent Information
- Application Number
- CN202420459660.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-11
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-03-11
AI Technical Summary
During the SCR denitrification reaction, dust and particulate matter in the flue gas will be deposited on the catalyst surface inside the reactor, forming ash blockage, resulting in a reduction in catalyst activity, affecting the SCR denitrification effect, increasing the pressure drop of the system, and reducing the operating efficiency of the equipment.
A cleaning device for SCR denitrification reactors is designed, including mounting base, auxiliary rack, potency tank and cleaning assembly. The ash cleaning assembly consists of a water pump, connector, extraction tube, connecting tube and spray block. Through these components, the ash cleaning agent is sprayed into the inside of the reactor to dissolve dust and particulate matter.
It effectively solves the problem of ash blockage, improves the activity of the catalyst, improves the SCR denitrification effect, reduces the system pressure drop, and improves the equipment operation efficiency.
Smart Images
Figure CN222534529U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of SCR denitration reactors, in particular to a dust cleaning device for SCR denitration reactors. Background Art
[0002] The SCR denitrification reactor is a device used to reduce the emission of nitrogen oxides (NOx) in combustion equipment such as coal-fired power plants and industrial boilers. It converts NOx into harmless nitrogen (N2) and water (H2O) by injecting reducing agents such as ammonia (NH3) or urea (NH2CONH2) into the flue gas and catalyzing it with a specific catalyst. The SCR denitrification technology has been widely used in large coal-fired power plants and industrial boilers to meet environmental protection requirements.
[0003] During the SCR denitration reaction, dust and particulate matter in the flue gas will be deposited on the catalyst surface inside the reactor, forming ash blockage, which will lead to reduced catalyst activity and affect the SCR denitration effect. At the same time, it will increase the pressure drop of the system and reduce the operating efficiency of the equipment. It is necessary to regularly clean the dust and particulate matter in the SCR denitration reactor. For this purpose, a cleaning device for the SCR denitration reactor is proposed. Utility Model Content
[0004] The utility model provides a dust cleaning device for an SCR denitration reactor, aiming to solve the problem that during the existing SCR denitration reaction process, dust and particulate matter in the flue gas will be deposited on the catalyst surface inside the reactor to form ash clogging, which will lead to reduced catalyst activity and affect the SCR denitration effect, while increasing the pressure drop of the system and reducing the operating efficiency of the equipment. It is necessary to regularly clean the dust and particulate matter in the SCR denitration reactor. For this purpose, a dust cleaning device for the SCR denitration reactor is proposed, thereby affecting the use effect of the SCR denitration reactor.
[0005] The utility model is implemented as follows: a dust cleaning device for an SCR denitration reactor comprises a mounting base, the top of the mounting base is movably connected to an auxiliary frame, the inner side of the auxiliary frame is movably connected to an SCR denitration reactor body, the left side of the auxiliary frame is fixedly connected to a mounting plate, the top of the mounting plate is movably connected to a reagent box, and the top of the reagent box is movably connected to a dust cleaning component;
[0006] The cleaning assembly includes a water pump, a connector, an extraction pipe, a connecting pipe and a spray block. The top of the reagent box is movably connected to the bottom of the water pump, the front side of the water pump is movably connected to the rear side of the connector, the bottom of the connector is movably connected to the top of the reagent box, the left side of the connector is bolted to the right side of the extraction pipe, the outer side of the extraction pipe is bolted to the inner side of the reagent box, the top of the connector is bolted to the bottom of the connecting pipe, the right side of the connecting pipe is bolted to the left side of the spray block, and the right side of the spray block is bolted to the left side of the SCR denitrification reactor body.
[0007] In order to achieve a stable placement of the connector, a preferred cleaning device for an SCR denitration reactor of the utility model is that the bottom of the SCR denitration reactor body is movably connected to the top of the mounting base, and a stabilizing block is fixedly connected to the bottom of the connector.
[0008] In order to achieve the effect of the water pump being connected to the reagent box, as a preferred cleaning device for an SCR denitrification reactor of the utility model, the bottom of the water pump is fixedly connected with a mounting piece, and the bottom of the mounting piece is bolted to the top of the reagent box.
[0009] In order to increase the strength of the mounting plate support, as a preferred cleaning device for an SCR denitration reactor of the utility model, a support block is fixedly connected to the left side of the auxiliary frame, and the top of the support block is fixedly connected to the bottom of the mounting plate.
[0010] In order to facilitate the addition of reagents into the reagent box, a preferred cleaning device for an SCR denitrification reactor of the utility model has a fixed ring fixedly connected to the rear side of the top of the reagent box, the fixed ring is connected to the reagent box, and a protective cover is movably connected to the outer side of the fixed ring.
[0011] In order to make the protective cover easy for the user to take, as a preferred cleaning device for an SCR denitration reactor of the utility model, the top of the protective cover is fixedly connected with a fixing handle, and the surface of the fixing handle is provided with anti-slip textures.
[0012] In order to make the auxiliary frame achieve the effect of matching the connection with the mounting base, as a preferred cleaning device for an SCR denitrification reactor of the utility model, the bottom of the auxiliary frame is fixedly connected with a connecting block, the number of the connecting blocks is four, and the bottom of the connecting block is bolted to the top of the mounting base.
[0013] In order to make the reagent box achieve the effect of matching the connection with the mounting plate, as a preferred cleaning device for an SCR denitrification reactor of the utility model, both sides of the reagent box are fixedly connected with matching parts, and the inner side of the matching parts is bolted to the outer side of the mounting plate.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] The cleaning device for the SCR denitration reactor is provided with a mounting base, an auxiliary frame, an SCR denitration reactor body, a mounting plate, a reagent box and a cleaning component. When the user needs to clean the SCR denitration reactor body, first, the user adds the existing cleaning agent from the top of the reagent box, the reagent box cooperates with the connection of the mounting plate and is stabilized on the left side of the SCR denitration reactor body, and then the water pump is started. The operation of the water pump extracts the cleaning agent from the reagent box through the extraction pipe connected to the connector and the connector cooperates with the connector, and the connector then transports the cleaning agent to the spray block through the connecting pipe connected to the top. Finally, the spray block sprays the cleaning agent into the interior of the SCR denitration reactor body to dissolve dust and particulate matter, which are subsequently discharged with the flue gas. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is the overall structural diagram of the ash cleaning device for the SCR denitration reactor of the utility model;
[0017] Figure 2 A diagram showing the connection between the dust cleaning component and the reagent box in the utility model;
[0018] Figure 3 A diagram showing the disassembled connection part of the medicine box in the utility model;
[0019] Figure 4 This is a diagram showing the disassembled connecting portion of the auxiliary frame in the present utility model;
[0020] Figure 5 For the utility model Figure 1 Enlarged view of point A in the middle.
[0021] In the figure, 1. mounting base; 2. auxiliary frame; 3. SCR denitrification reactor body; 4. mounting plate; 5. reagent box; 6. cleaning assembly; 601. water pump; 602. connector; 603. extraction pipe; 604. connecting pipe; 605. spray block; 7. stabilizing block; 8. mounting part; 9. supporting block; 10. fixing ring; 11. protective cover; 12. fixing handle; 13. connecting block; 14. matching part. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0023] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.
[0024] See also Figure 1-5 The utility model provides a technical solution: a dust cleaning device for an SCR denitration reactor, comprising a mounting base 1, an auxiliary frame 2 is movably connected to the top of the mounting base 1, an SCR denitration reactor body 3 is movably connected to the inner side of the auxiliary frame 2, a mounting plate 4 is fixedly connected to the left side of the auxiliary frame 2, a reagent box 5 is movably connected to the top of the mounting plate 4, and a dust cleaning component 6 is movably connected to the top of the reagent box 5;
[0025] The cleaning component 6 includes a water pump 601, a connector 602, an extraction pipe 603, a connecting pipe 604 and a spray block 605. The top of the reagent box 5 is movably connected to the bottom of the water pump 601, the front side of the water pump 601 is movably connected to the rear side of the connector 602, the bottom of the connector 602 is movably connected to the top of the reagent box 5, the left side of the connector 602 is bolted to the right side of the extraction pipe 603, the outer side of the extraction pipe 603 is bolted to the inner side of the reagent box 5, the top of the connector 602 is bolted to the bottom of the connecting pipe 604, the right side of the connecting pipe 604 is bolted to the left side of the spray block 605, and the right side of the spray block 605 is bolted to the left side of the SCR denitrification reactor body 3.
[0026] In this embodiment: by setting up the installation base 1, the auxiliary frame 2, the SCR denitrification reactor body 3, the installation plate 4, the agent box 5 and the cleaning component 6, when the user needs to clean the SCR denitrification reactor body 3, first, the user adds the existing cleaning agent from the top of the agent box 5, the agent box 5 cooperates with the connection of the installation plate 4 and is stabilized on the left side of the SCR denitrification reactor body 3, and then starts the water pump 601. The operation of the water pump 601 extracts the cleaning agent from the agent box 5 through the extraction pipe 603 connected to the connector 602 and the connector 602 cooperates, and the connector 602 then cooperates to transport the cleaning agent to the spray block 605 through the connecting pipe 604 connected at the top. Finally, the spray block 605 sprays the cleaning agent into the interior of the SCR denitrification reactor body 3 to dissolve dust and particulate matter, which are subsequently discharged with the flue gas.
[0027] As a technical optimization solution of the present invention, the bottom of the SCR denitration reactor body 3 is movably connected to the top of the mounting base 1 , and the bottom of the connector 602 is fixedly connected with a stabilizing block 7 .
[0028] In this embodiment: a stabilizing block 7 fixed to the connector 602 is provided to increase the stability of the connector 602 on the top of the medicine box 5.
[0029] As a technical optimization solution of the present invention, a mounting member 8 is fixedly connected to the bottom of the water pump 601 , and the bottom of the mounting member 8 is bolted to the top of the medicine box 5 .
[0030] In this embodiment, by setting a fixing member 8 for the water pump 601 , the user can install the water pump stand on the top of the medicine box 5 .
[0031] As a technical optimization solution of the present invention, a support block 9 is fixedly connected to the left side of the auxiliary frame 2 , and the top of the support block 9 is fixedly connected to the bottom of the mounting plate 4 .
[0032] In this embodiment, the auxiliary frame 2 and the mounting plate 4 are connected by providing a support block 9 so that the mounting plate 4 is auxiliary supported, thereby increasing the support strength of the mounting plate 4 .
[0033] As a technical optimization solution of the utility model, a fixing ring 10 is fixedly connected to the rear side of the top of the medicine box 5 , the fixing ring 10 is connected to the medicine box 5 , and a protective cover 11 is movably connected to the outer side of the fixing ring 10 .
[0034] In this embodiment: by providing a fixing ring 10 that is fixed to the medicine box 5 and connected to the medicine box 5, the user can add medicine into the medicine box 5, and by providing a protective cover 11 that cooperates with the fixing ring 10, foreign objects can be prevented from entering the medicine box 5.
[0035] As a technical optimization solution of the utility model, a fixing handle 12 is fixedly connected to the top of the protective cover 11, and the surface of the fixing handle 12 is provided with anti-slip patterns.
[0036] In this embodiment, a fixing handle 12 fixed to the top of the protective cover 11 is provided to facilitate the user to take the protective cover 11 .
[0037] As a technical optimization solution of the present invention, a connecting block 13 is fixedly connected to the bottom of the auxiliary frame 2 . There are four connecting blocks 13 , and the bottom of the connecting block 13 is bolted to the top of the mounting base 1 .
[0038] In this embodiment, four connection blocks 13 fixed to the auxiliary frame 2 are provided so that the auxiliary frame 2 can be bolted to the mounting base 1 through the connection blocks 13 .
[0039] As a technical optimization solution of the present invention, both sides of the medicine box 5 are fixedly connected with matching pieces 14 , and the inner side of the matching pieces 14 is bolted to the outer side of the mounting plate 4 .
[0040] In this embodiment, two matching pieces 14 fixed to the medicine box 5 are provided so that the medicine can be bolted to the mounting plate 4 through the matching pieces 14 , so that the medicine box 5 is stably supported by the mounting plate 4 .
[0041] Working principle: First, when the user needs to clean the SCR denitrification reactor body 3, the user adds the existing cleaning agent from the top of the agent box 5, and the agent box 5 cooperates with the connection of the mounting plate 4 and is stabilized on the left side of the SCR denitrification reactor body 3, and then starts the water pump 601. The operation of the water pump 601 extracts the cleaning agent from the agent box 5 through the extraction pipe 603 connected to the connector 602 and the connector 602 cooperates with the connecting pipe 604 connected at the top to transport the cleaning agent to the spray block 605. Finally, the spray block 605 sprays the cleaning agent into the interior of the SCR denitrification reactor body 3 to dissolve dust and particulate matter, which are then discharged with the flue gas.
[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A ash cleaning device for an SCR denitration reactor, comprising a mounting base (1), characterized in that: The top of the mounting base (1) is movably connected to an auxiliary frame (2), the inner side of the auxiliary frame (2) is movably connected to an SCR denitration reactor body (3), the left side of the auxiliary frame (2) is fixedly connected to a mounting plate (4), the top of the mounting plate (4) is movably connected to a reagent box (5), and the top of the reagent box (5) is movably connected to a dust cleaning component (6); The cleaning component (6) includes a water pump (601), a connector (602), an extraction pipe (603), a connecting pipe (604) and a spray block (605). The top of the reagent box (5) is movably connected to the bottom of the water pump (601), the front side of the water pump (601) is movably connected to the rear side of the connector (602), the bottom of the connector (602) is movably connected to the top of the reagent box (5), the left side of the connector (602) is bolted to the right side of the extraction pipe (603), the outer side of the extraction pipe (603) is bolted to the inner side of the reagent box (5), the top of the connector (602) is bolted to the bottom of the connecting pipe (604), the right side of the connecting pipe (604) is bolted to the left side of the spray block (605), and the right side of the spray block (605) is bolted to the left side of the SCR denitration reactor body (3).
2. A ash cleaning device for an SCR denitration reactor according to claim 1, characterized in that: The bottom of the SCR denitration reactor body (3) is movably connected to the top of the mounting base (1), and the bottom of the connector (602) is fixedly connected to a stabilizing block (7).
3. A ash cleaning device for an SCR denitration reactor according to claim 1, characterized in that: The bottom of the water pump (601) is fixedly connected to a mounting member (8), and the bottom of the mounting member (8) is bolted to the top of the medicine box (5).
4. A ash cleaning device for an SCR denitration reactor according to claim 1, characterized in that: A support block (9) is fixedly connected to the left side of the auxiliary frame (2), and the top of the support block (9) is fixedly connected to the bottom of the mounting plate (4).
5. The ash cleaning device for an SCR denitration reactor according to claim 1, characterized in that: A fixing ring (10) is fixedly connected to the rear side of the top of the medicine box (5), the fixing ring (10) is connected to the medicine box (5), and a protective cover (11) is movably connected to the outer side of the fixing ring (10).
6. A ash cleaning device for an SCR denitration reactor according to claim 5, characterized in that: A fixing handle (12) is fixedly connected to the top of the protective cover (11), and a surface of the fixing handle (12) is provided with anti-slip patterns.
7. The ash cleaning device for an SCR denitration reactor according to claim 1, characterized in that: The bottom of the auxiliary frame (2) is fixedly connected with a connecting block (13), the number of the connecting blocks (13) is four, and the bottom of the connecting block (13) is bolted to the top of the mounting base (1).
8. The ash cleaning device for an SCR denitration reactor according to claim 1, characterized in that: Both sides of the medicine box (5) are fixedly connected with matching pieces (14), and the inner side of the matching pieces (14) is bolted to the outer side of the mounting plate (4).