Quick mounted mixer for inlet flue of SCR denitration reactor

Abstract

The utility model relates to the technical field of atmospheric environmental protection treatment, especially to be used for the quick -mounting type mixer of SCR denitration reactor entrance flue, technical scheme: the quick -mounting type mixer of SCR denitration reactor entrance flue, including have the mixer main part, quick -mounting assembly, sealing assembly, annular distribution pipe, containing groove, nozzle, air intake, mounting support, rotating platform, guide vane and rotating motor, one end of the mixer main part is provided with quick -mounting assembly, and one side of quick -mounting assembly is provided with sealing assembly, and the outside of the mixer main part is provided with annular distribution pipe, and the inside of the mixer main part is provided with containing groove, and the inside of containing groove is provided with nozzle, the utility model discloses through setting up the flow guide component and generating the cyclone, and the ammonia gas can be fully mixed with the flue gas at the port of flue, and the reducing agent is mixed with the flue gas efficiently, and can effectively simplify the installation process through setting up the quick -mounting flange structure, reaches the effect of quick installation.

Description

Technical Field

[0001] This utility model relates to the field of atmospheric environmental protection and control technology, and in particular to a quick-install mixer for the inlet flue of an SCR denitrification reactor. Background Technology

[0002] To achieve sustainable ecological development, local governments have paid particular attention to the concentration of nitrogen oxides in air pollutants and have gradually raised the limits on flue gas denitrification. To meet the high standards for nitrogen oxide limits, all on-site denitrification processes have adopted the SCR denitrification technology.

[0003] Existing mixers used in the inlet flue gas duct of SCR denitrification reactors are mostly fixed structures, which are inconvenient to install and maintain, and the mixing effect is not ideal. They are not easy to efficiently mix the reducing agent and flue gas, which can easily lead to problems such as high ammonia slip rate and unstable denitrification efficiency, thus affecting the denitrification effect and increasing the denitrification operating cost.

[0004] Existing mixers used in the inlet flue gas ducts of SCR denitrification reactors are mostly fixed structures, which are inconvenient to install and maintain, and have unsatisfactory mixing effects. They are not conducive to efficiently mixing the reducing agent and flue gas, which can easily lead to problems such as high ammonia slip rate and unstable denitrification efficiency, thus affecting the denitrification effect and increasing the denitrification operating cost. This solution generates swirling flow by setting a flow guiding component, which can fully mix ammonia and flue gas at the flue gas port, efficiently mixing the reducing agent and flue gas. At the same time, the quick-installation flange structure can effectively simplify the installation process and achieve rapid installation. Utility Model Content

[0005] To overcome the problems of existing mixers used in the inlet flue gas duct of SCR denitrification reactors, which are mostly fixed structures, inconvenient to install and maintain, and have unsatisfactory mixing effects, making it difficult to efficiently mix the reducing agent and flue gas, easily leading to high ammonia slip rate and unstable denitrification efficiency, thus affecting the denitrification effect and increasing the denitrification operating cost.

[0006] The technical solution of this utility model is as follows: a quick-installation mixer for the inlet flue of an SCR denitrification reactor, comprising a mixer body, a quick-installation assembly, a sealing assembly, an annular distribution pipe, a receiving groove, nozzles, an air inlet, a mounting bracket, a rotating platform, guide vanes, and a rotating motor. The quick-installation assembly is provided at one end of the mixer body, and a sealing assembly is provided on one side of the quick-installation assembly. An annular distribution pipe is provided on the outer side of the mixer body, and a receiving groove is provided on the inner side of the mixer body. Multiple sets of nozzles are provided inside the receiving groove. An air inlet is provided at the top of the annular distribution pipe. A mounting bracket is provided inside the mixer body, and a rotating platform is provided on one side of the mounting bracket. Guide vanes are provided on one side of the rotating platform, and a rotating motor is provided on the other side of the mounting bracket.

[0007] Preferably, the quick-connect assembly facilitates rapid connection of the mixer body to other equipment, the sealing assembly seals the connection between the quick-connect assembly and other equipment, the reducing agent is supplied to the nozzle through the annular distribution pipe, the annular distribution pipe is pressurized through the air inlet, the reducing agent is sprayed into the flue through the nozzle and mixed with the flue gas before denitrification, the rotating platform is installed through the mounting bracket, the guide vanes are rotated and installed through the rotating platform, the guide vanes are installed by the rotating motor, and the guide vanes accelerate the airflow at the port of the mixer body, so that the flue gas before denitrification and the injected reducing agent form a turbulent state at the mixer, so that the two substances are fully mixed, thereby improving the denitrification efficiency and reducing the operating cost.

[0008] Preferably, the quick-installation assembly includes a quick-installation flange and connecting bolts. One end of the mixer body is provided with a quick-installation flange, and the quick-installation flange is provided with connecting bolts inside. Multiple sets of connecting bolts are provided.

[0009] Preferably, the sealing assembly includes a gasket, and a gasket is provided on one side of the quick-connect flange. The gasket is made of high-temperature resistant silicone rubber.

[0010] Preferably, the mixer body has an internal mounting groove, and the inside of the mounting groove is provided with a heat insulation layer.

[0011] Preferably, an air guide plate is provided inside the flue port of the mixer body, and multiple sets of air guide plates are provided, with fast flow grooves opened on both sides of the air guide plate.

[0012] Preferably, fixed supports are provided on both sides of the outside of the mixer body, and a protective plate is provided at one end of the fixed support.

[0013] Preferably, a mounting platform is provided on the top surface of the mixer body, and a temperature detector is provided on the top surface of the mounting platform.

[0014] The beneficial effects of this utility model are:

[0015] Compared to existing mixers used in the inlet flue of SCR denitrification reactors, which are mostly fixed structures, inconvenient to install and maintain, and have unsatisfactory mixing effects, making it difficult to efficiently mix the reducing agent and flue gas, easily leading to problems such as high ammonia slip rate and unstable denitrification efficiency, thus affecting the denitrification effect and increasing the denitrification operating cost, this solution generates swirling flow by setting a flow guiding component, which can fully mix ammonia and flue gas at the flue port, efficiently mixing the reducing agent and flue gas. At the same time, by setting a quick-install flange structure, the installation process can be effectively simplified, achieving the effect of rapid installation. Attached Figure Description

[0016] Figure 1The diagram shown is a first three-dimensional structural schematic of the quick-install mixer for the inlet flue of an SCR denitrification reactor according to this utility model.

[0017] Figure 2 The diagram shown is a second three-dimensional structural schematic of the quick-install mixer for the inlet flue of an SCR denitrification reactor according to this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional structural diagram of the bottom surface of the quick-install mixer for the inlet flue of an SCR denitrification reactor according to this utility model.

[0019] Figure 4 The diagram shown is a three-dimensional representation of the internal structure of the quick-assembly mixer for the inlet flue of an SCR denitrification reactor according to this invention.

[0020] Explanation of reference numerals in the attached drawings: 1. Mixer body; 201. Quick-connect flange; 202. Connecting bolt; 301. Sealing gasket; 401. Annular distribution pipe; 402. Receiving groove; 403. Nozzle; 404. Air inlet; 405. Mounting bracket; 406. Rotating table; 407. Guide vane; 408. Rotating motor; 501. Mounting groove; 502. Thermal insulation layer; 601. Air guide plate; 602. Velocity channel; 701. Fixed bracket; 702. Protective plate; 801. Mounting platform; 802. Temperature detector. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figure 4 This utility model provides an embodiment of a quick-install mixer for the inlet flue of an SCR denitrification reactor, comprising a mixer body 1, a quick-install assembly, a sealing assembly, an annular distribution pipe 401, a receiving groove 402, a nozzle 403, an air inlet 404, a mounting bracket 405, a rotating platform 406, guide vanes 407, and a rotating motor 408. A quick-install assembly is provided at one end of the mixer body 1, and a sealing assembly is provided on one side of the quick-install assembly. An annular distribution pipe 401 is provided on the outer side of the mixer body 1. A receiving groove 402 is opened on the inner side of the mixer body 1, and nozzles 403 are provided inside the receiving groove 402. Multiple sets of nozzles 403 are provided. An air inlet 404 is provided at the top of the annular distribution pipe 401. A mounting bracket 405 is provided inside the mixer body 1. A rotating platform 406 is provided on one side of the mounting bracket 405, and guide vanes 407 are provided on one side of the rotating platform 406. A rotating motor 408 is provided on the other side of the mounting bracket 405.

[0023] Please see Figure 1 , Figure 2 and Figure 3In this embodiment, the quick-connect assembly includes a quick-connect flange 201 and connecting bolts 202. One end of the mixer body 1 is provided with the quick-connect flange 201, and multiple sets of connecting bolts 202 are provided inside the quick-connect flange 201. During use, the quick-connect flange 201 facilitates quick connection of the mixer body 1 to other equipment, and the connecting bolts 202 secure the quick-connect flange 201. The sealing assembly includes a sealing gasket 301, which is provided on one side of the quick-connect flange 201. The sealing gasket 301 is made of high-temperature resistant silicone rubber. During use, the sealing gasket 301 seals the connection between the quick-connect flange 201 and other equipment. An installation groove 501 is provided inside the mixer body 1, and a heat insulation layer 502 is provided inside the installation groove 501. During use, the heat insulation layer 502 is installed through the installation groove 501, and the heat insulation layer 502 isolates the temperature inside and outside the mixer body 1.

[0024] A guide plate 601 is provided inside the flue port of the mixer body 1. Multiple sets of guide plates 601 are provided. A velocity channel 602 is opened on both sides of the guide plate 601. In use, the guide plate 601 guides the flue gas entering the mixer body 1, and the velocity channel 602 accelerates the flow of the flue gas. Fixed brackets 701 are provided on both sides of the outside of the mixer body 1. A protective plate 702 is provided at one end of the fixed bracket 701. In use, the protective plate 702 is installed on the fixed bracket 701 to protect the outside of the mixer body 1. A mounting platform 801 is provided on the top surface of the mixer body 1. A temperature detector 802 is provided on the top surface of the mounting platform 801. In use, the temperature detector 802 is installed on the mounting platform 801 to detect the temperature inside the mixer body 1.

[0025] During operation, the quick-connect flange 201 facilitates quick connection of the mixer body 1 to other equipment. The quick-connect flange 201 is fixed by the connecting bolts 202, and the sealing gasket 301 seals the connection between the quick-connect flange 201 and other equipment.

[0026] After installation and connection, the flue gas entering the mixer body 1 is guided by the air guide plate 601, the flue gas flow velocity is added by the velocity channel 602, the reducing agent is supplied to the nozzle 403 through the annular distribution pipe 401, the annular distribution pipe 401 is pressurized through the air inlet 404, the reducing agent is sprayed into the flue through the nozzle 403 and mixed with the flue gas before denitrification, the rotating table 406 is installed by the mounting bracket 405, the guide vanes 407 are rotated and installed by the rotating table 406, the guide vanes 407 are installed by the rotating motor 408, and the guide vanes 407 accelerate the air flow at the port of the mixer body 1.

[0027] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A quick-assembly mixer for the inlet flue of an SCR denitrification reactor, comprising a mixer body (1), characterized in that: It also includes a quick-installation assembly, a sealing assembly, an annular distribution pipe (401), a receiving groove (402), a nozzle (403), an air inlet (404), a mounting bracket (405), a rotating table (406), guide vanes (407), and a rotating motor (408). A quick-installation assembly is provided at one end of the mixer body (1), a sealing assembly is provided on one side of the quick-installation assembly, an annular distribution pipe (401) is provided on the outer side of the mixer body (1), a receiving groove (402) is provided on the inner side of the mixer body (1), a nozzle (403) is provided inside the receiving groove (402), multiple sets of nozzles (403) are provided, an air inlet (404) is provided at the top of the annular distribution pipe (401), a mounting bracket (405) is provided inside the mixer body (1), a rotating table (406) is provided on one side of the mounting bracket (405), a guide vane (407) is provided on one side of the rotating table (406), and a rotating motor (408) is provided on the other side of the mounting bracket (405).

2. The quick-install mixer for the inlet flue of an SCR denitrification reactor according to claim 1, characterized in that: The quick-installation assembly includes a quick-installation flange (201) and connecting bolts (202). One end of the mixer body (1) is provided with a quick-installation flange (201), and the inside of the quick-installation flange (201) is provided with connecting bolts (202). There are multiple sets of connecting bolts (202).

3. The quick-install mixer for the inlet flue of an SCR denitrification reactor according to claim 2, characterized in that: The sealing assembly includes a gasket (301), and a gasket (301) is provided on one side of the quick-connect flange (201). The gasket (301) is made of high-temperature resistant silicone rubber.

4. The quick-install mixer for the inlet flue of an SCR denitrification reactor according to claim 1, characterized in that: The mixer body (1) has an installation groove (501) inside, and an insulation layer (502) is provided inside the installation groove (501).

5. The quick-install mixer for the inlet flue of an SCR denitrification reactor according to claim 1, characterized in that: A guide plate (601) is provided inside the flue port of the mixer body (1). Multiple sets of guide plates (601) are provided, and fast flow grooves (602) are opened on both sides of the guide plate (601).

6. The quick-install mixer for the inlet flue of an SCR denitrification reactor according to claim 1, characterized in that: The mixer body (1) is provided with fixed brackets (701) on both sides of the outside, and a protective plate (702) is provided at one end of the fixed bracket (701).

7. The quick-install mixer for the inlet flue of an SCR denitrification reactor according to claim 1, characterized in that: A mounting platform (801) is provided on the top surface of the mixer body (1), and a temperature detector (802) is provided on the top surface of the mounting platform (801).

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