Ammonia-air mixing pipe of desulfurization and denitrification device
By installing cyclone components and fan blades in the coke oven flue gas treatment pipeline, the problem of uneven ammonia mixing was solved, and the desulfurization and denitrification effects were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN DAXING ENERGY CO LTD
- Filing Date
- 2024-12-31
- Publication Date
- 2026-05-19
AI Technical Summary
The existing coke oven flue gas treatment pipelines lack mixing functions, resulting in uneven ammonia mixing and affecting the subsequent desulfurization and denitrification effects.
A cyclone assembly is installed inside the pipeline body. The cyclone assembly includes a fixed part and multiple fan blades. The fan blades are set at an angle to mix ammonia. Flanges and threaded holes are provided at both ends of the pipeline. The material is metal and the thickness of the corrosion-resistant layer is 4-8mm.
This achieved uniform mixing of ammonia gas, improving the efficiency of subsequent desulfurization and denitrification treatments.
Smart Images

Figure CN224252558U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of mixing pipes, and more specifically, to an ammonia-air mixing pipe for a desulfurization and denitrification device. Background Technology
[0002] Coke ovens are a major source of flue gas pollutant emissions in the coking industry. The combustion of pulverized coal and the calcination of clinker during coke oven heating generate large amounts of flue gas, accompanied by emissions of particulate matter, SO2, NOx, and fluorides. The flue gas generated during coke oven heating and combustion requires thorough mixing and heating of ammonia, the reaction medium needed for desulfurization and denitrification. Currently, the pipelines only have a transport function and lack a mixing function; therefore, improvements to the existing pipelines are necessary. Summary of the Invention
[0003] The purpose of this application is to provide an ammonia-air mixing pipe for a desulfurization and denitrification device, which can solve the above-mentioned technical problems.
[0004] This application provides an ammonia-air mixing pipe for a desulfurization and denitrification device, including a pipe body. A cyclone assembly is provided inside the pipe body. The cyclone assembly includes a fixing member and multiple fan blades. The fixing member is installed in the middle of the pipe body. One end of each fan blade is connected to the fixing member, and the other end of each fan blade abuts against the inner wall of the pipe body. The fan blades are inclined. Flanges are provided at both ends of the pipe body, and threaded holes are provided on the flanges.
[0005] Preferably, the fan blades are provided with at least four.
[0006] Preferably, multiple cyclone components can be provided.
[0007] Preferably, the pipe body is provided with a corrosion-resistant layer, the thickness of which is 4-8 mm.
[0008] Preferably, the middle part of the fastener is hollow.
[0009] Preferably, the thickness of the pipe body is 4-8cm, and a hollow layer is provided inside the pipe body.
[0010] Preferably, the pipe body, the fastener, and the fan blades are all made of metal.
[0011] The beneficial effects of this utility model are:
[0012] This utility model provides an ammonia-air mixing pipe for a desulfurization and denitrification device, comprising a pipe body, inside which a cyclone assembly is provided. The cyclone assembly includes a fixing member and multiple fan blades. The fixing member is installed in the middle of the pipe body. One end of each fan blade is connected to the fixing member, and the other end of each fan blade abuts against the inner wall of the pipe body. The fan blades are inclined. Flanges are provided at both ends of the pipe body, and threaded holes are provided on the flanges. In use, the pipe body is installed on the ammonia gas conveying pipeline of the desulfurization and denitrification device. When ammonia gas passes through the pipe body, it can be mixed by the fan blades, so that the ammonia gas concentration is uniform, which facilitates subsequent desulfurization and denitrification treatment. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the structure of this utility model.
[0015] The reference numerals in the attached figures are as follows:
[0016] 1. Pipe body; 2. Cyclone assembly; 3. Fixture; 4. Fan blade; 5. Flange; 6. Threaded hole. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0018] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0020] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. These terms are used only for the convenience of describing this application and for 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 limitations on this application. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0021] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0022] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0023] like Figure 1 As shown, an ammonia-air mixing pipe for a desulfurization and denitrification device includes a pipe body 1. A cyclone assembly 2 is installed inside the pipe body 1. The cyclone assembly 2 includes a fixing member 3 and multiple fan blades 4. The fixing member 3 is installed in the middle of the pipe body 1. One end of each fan blade 4 is connected to the fixing member 3, and the other end of each fan blade 4 abuts against the inner wall of the pipe body 1. The fan blades 4 are inclined. Flanges 5 are provided at both ends of the pipe body 1, and threaded holes 6 are provided on the flanges 5. In use, the pipe body 1 is installed on the ammonia gas conveying pipeline of the desulfurization and denitrification device. When ammonia gas passes through the pipe body 1, it can be mixed by the fan blades 4, resulting in a uniform ammonia concentration, which facilitates subsequent desulfurization and denitrification treatment.
[0024] In this embodiment, to ensure more thorough mixing of ammonia, at least four fan blades 4 are provided.
[0025] In this embodiment, multiple cyclone components 2 can be provided. Specifically, an appropriate number of cyclone components 2 can be selected according to the requirements.
[0026] In this embodiment, to prevent the pipe body 1 from being corroded, a corrosion-resistant layer is provided on the pipe body 1, and the thickness of the corrosion-resistant layer is 4-8mm.
[0027] In this embodiment, the middle part of the fixing member 3 is hollow.
[0028] In this embodiment, the thickness of the pipe body 1 is 4-8cm, and a hollow layer is provided inside the pipe body 1.
[0029] In this embodiment, in order to extend the service life of the present invention, the pipe body 1, the fixing member 3, and the fan blade 4 are all made of metal material, specifically stainless steel.
[0030] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. An ammonia-air mixing pipe for a desulfurization and denitrification device, characterized in that: The device includes a pipe body, inside which a cyclone assembly is installed. The cyclone assembly includes a fixing member and multiple fan blades. The fixing member is installed in the middle of the pipe body. One end of each fan blade is connected to the fixing member, and the other end of each fan blade abuts against the inner wall of the pipe body. The fan blades are inclined. Flanges are provided at both ends of the pipe body, and threaded holes are provided on the flanges. A corrosion-resistant layer with a thickness of 4-8 mm is provided on the pipe body. The fixing member is hollow in the middle. The pipe body has a thickness of 4-8 cm and has a hollow layer inside.
2. The ammonia-air mixing pipe of a desulfurization and denitrification device according to claim 1, characterized in that: The fan blades are provided with at least four.
3. The ammonia-air mixing pipe of the desulfurization and denitrification device according to claim 1, characterized in that: Multiple cyclone components may be provided.
4. The ammonia-air mixing pipe of a desulfurization and denitrification device according to claim 1, characterized in that: The pipe body, the fastener, and the fan blades are all made of metal.