Accurate and efficient denitration device

Abstract

The utility model discloses a precise efficient denitration device, relates to flue gas treatment technical field, including the overhaul stand and reactor, the middle of overhaul stand top is equipped with the reactor, the top of reactor is connected with the air inlet pipe, and the bottom of reactor is equipped with the air outlet pipe, the one end of air inlet pipe far away from the reactor is connected with the combination pipe. According to the precise and efficient denitration device, multiple groups of catalyst laminates are arranged in the reaction box in a Z-shaped structure, so that the time and the area of chemical reaction are increased, the interior of the reaction box is divided into a continuous zigzag space structure, and meanwhile, atomization nozzles arranged on the two sides are matched for use; according to the present invention, the gas entering the reactor can be subjected to rapid denitration treatment to the maximum degree, and the multiple reactors can be matched with the structure connection of the air inlet pipe and the air outlet pipe according to the requirements by using the combined pipe so as to achieve the structure series connection of the multiple reactors, such that the optimal denitration treatment on the gas can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas treatment, in particular to a precise and efficient denitrification device. Background Art

[0002] A denitrification system is a device used to remove nitrogen oxides from flue gas. Its primary purpose is to reduce nitrogen oxides produced during combustion to prevent environmental pollution. Nitrogen oxides are a major component of air pollution and have serious impacts on human health and the environment.

[0003] Conventional denitrification devices spray reagents inside a hollow reactor to inject the flue gas inside for denitrification. However, this process will result in limited denitrification effect due to insufficient mixing of the sprayed reagents with the flue gas, which affects the flue gas treatment effect.

[0004] Therefore, in view of this, the existing structure and deficiencies are studied and improved, and a precise and efficient denitrification device is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a precise and efficient denitrification device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a precise and efficient denitrification device, comprising an inspection platform and a reactor, wherein a reactor is installed in the middle of the top of the inspection platform, and the top of the reactor is connected to an air inlet pipe, and the bottom of the reactor is installed with an air outlet pipe, and the end of the air inlet pipe away from the reactor is connected to a combination pipe, and the reactor comprises a reaction box, a dust removal net, a catalyst layer plate, a sealing sleeve, an atomizing nozzle and a connecting pipe, dust removal nets are provided on the upper and lower sides of the reaction box, and a catalyst layer plate is horizontally provided inside the reaction box, and sealing sleeves are installed on the left and right sides of the reaction box, and an atomizing nozzle is installed inside the sealing sleeve, and a connecting pipe is installed at the end of the atomizing nozzle away from the output end.

[0007] Furthermore, the inspection platform includes a main frame, supporting angle plates and lifting columns. The supporting angle plates are installed around the bottom of the main frame, and lifting columns are vertically installed at the four diagonal corners of the bottom of the main frame.

[0008] Furthermore, the inspection platform also includes a fixing pile and an installation opening. The fixing pile is installed at the bottom of the lifting column, and the installation opening is opened in the middle of the top surface of the main platform.

[0009] Furthermore, the supporting angle plates are arranged in a triangular structure and are equidistantly arranged on the four edges of the bottom of the main frame. Bolt structures are vertically installed at the four diagonal corners of the fixing piles, and the top surface structure of the mounting port matches the surface structure of the reaction box.

[0010] Furthermore, the dust removal net is arranged at the connection between the reaction box and the air inlet pipe and the air outlet pipe, and the catalyst layer plate is arranged from top to bottom in a "Z"-shaped structure inside the reaction box, and the sealing sleeve and the atomizing nozzle are arranged on one side of the catalyst layer plate that is staggered with each other, and the atomizing nozzle is connected to the connecting pipe through a quick connector.

[0011] Furthermore, the air inlet pipe includes a ventilation hood, a filter and an external air duct. The side of the ventilation hood away from the reactor is connected to the filter, and the side of the filter away from the ventilation hood is connected to the external air duct.

[0012] Furthermore, the ventilation hood, the filter and the external air duct are connected to each other by using a rectangular flange structure, and the ventilation hood and the reactor are connected to each other by using a rectangular flange structure.

[0013] Furthermore, the air outlet pipe and the air inlet pipe have the same structure, and both the air outlet pipe and the air inlet pipe are combined and connected with the combination pipe through a rectangular flange structure.

[0014] The utility model provides a precise and efficient denitrification device, which has the following beneficial effects:

[0015] 1. The utility model increases the time and area of ​​the chemical reaction by arranging multiple groups of catalyst layers equidistantly from top to bottom in the vertical direction inside the reaction box, and at the same time, staggering the catalyst layers in a "Z"-shaped structure so that the interior of the reaction box is divided into a continuous "S"-shaped channel structure, and by correspondingly arranging atomizing nozzles on both sides of the staggered catalyst layers, the reaction reagents used for treating the flue gas outside are atomized and sprayed by using a connecting pipe, and the catalyst for denitrification contained in the catalyst layers is used, so that the flue gas injected into the reactor can be fully mixed and reacted. The use of the above structure can effectively ensure the accuracy and efficiency of the reactor's treatment of the flue gas, so that the flue gas can be denitrified as much as possible. At the same time, dust removal nets are provided at the openings on the upper and lower sides of the reaction box to assist subsequent equipment in effectively removing dust from the flue gas and ensure operating efficiency.

[0016] 2. The utility model is to respectively install an air inlet pipe and an air outlet pipe on the upper and lower sides of the reactor, and the air inlet pipe and the air outlet pipe have the same structure, so that the flue gas entering and leaving the reactor can be doubly filtered by using the filter arranged between the ventilation hood and the external air duct, so that the flue gas entering or exiting the reactor can be dust-removed as much as possible, and at the same time, in conjunction with the dust removal net inside the reaction box, the flue gas can be filtered and purified as much as possible, thereby assisting the subsequent downstream dust removal equipment to effectively treat the flue gas. In addition, as needed, the flange connection structure between the combination pipe and the air inlet pipe and the air outlet pipe can be used to connect multiple groups of reactors end to end, thereby forming a mutually serial structure of multiple groups of reactors, and then the flue gas can be denitrified to the greatest extent to ensure the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main body axial side view of a precise and efficient denitrification device of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of an inspection platform for a precise and efficient denitrification device of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of a reactor of a precise and efficient denitrification device of the utility model.

[0020] In the figure: 1. Maintenance platform; 101. Main platform; 102. Support angle plate; 103. Lifting column; 104. Fixing pile; 105. Installation port; 2. Reactor; 201. Reaction box; 202. Dust removal net; 203. Catalyst layer plate; 204. Sealing sleeve; 205. Atomizing nozzle; 206. Connecting pipe; 3. Air inlet pipe; 301. Ventilation hood; 302. Filter; 303. External air duct; 4. Air outlet pipe; 5. Combination pipe. DETAILED DESCRIPTION

[0021] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] like Figures 1 to 3As shown, a precise and efficient denitrification device includes an inspection platform 1 and a reactor 2. The reactor 2 is installed in the middle of the top of the inspection platform 1, and the top of the reactor 2 is connected to the air inlet pipe 3, and the bottom of the reactor 2 is installed with an air outlet pipe 4, and the end of the air inlet pipe 3 away from the reactor 2 is connected to the combination pipe 5. The reactor 2 includes a reaction box 201, a dust removal net 202, a catalyst layer plate 203, a sealing sleeve 204, an atomizing nozzle 205 and a connecting pipe 206. The dust removal net 202 is provided on the upper and lower sides of the reaction box 201, and the catalyst layer plate 203 is horizontally provided inside the reaction box 201, and sealing sleeves 204 are installed on the left and right sides of the reaction box 201, and the atomizing nozzle 205 is installed inside the sealing sleeve 204, and the connecting pipe 206 is installed on the end of the atomizing nozzle 205 away from the output end. The inspection platform 1 includes a main frame 101, a supporting angle plate 102 and a lifting column 103. The main frame 101 The bottom of the main frame 101 is provided with supporting angle plates 102, and lifting columns 103 are vertically installed at the four diagonal corners of the bottom of the main frame 101. The maintenance platform 1 also includes a fixing pile 104 and an installation port 105. The bottom of the lifting column 103 is provided with a fixing pile 104, and the middle of the top surface of the main frame 101 is provided with an installation port 105. The supporting angle plates 102 are arranged in a triangular structure and are equidistantly arranged at the edges of the bottom of the main frame 101. Bolt structures are vertically installed at the four diagonal corners of the fixing pile 104. The top surface structure of the installation port 105 matches the surface structure of the reaction box 201. Atomizing nozzles 205 are correspondingly arranged on both sides of the staggered catalyst layer plates 203. The connecting pipe 206 is used to atomize and spray the external reaction reagent for treating the flue gas, and cooperate with the catalyst for denitrification contained in the catalyst layer plates 203, so that the flue gas injected into the reactor 2 can be fully mixed and reacted.

[0023] like Figures 1 to 3As shown, the dust removal net 202 is arranged at the connection between the reaction box 201 and the air inlet pipe 3 and the air outlet pipe 4, and the catalyst layer plate 203 is arranged in a "Z"-shaped structure from top to bottom inside the reaction box 201, and the sealing sleeve 204 and the atomizing nozzle 205 are arranged on one side of the catalyst layer plate 203 that are staggered with each other, and the atomizing nozzle 205 is connected to the connecting pipe 206 through a quick connector. The air inlet pipe 3 includes a ventilation hood 301, a filter 302 and an external air duct 303. The side of the ventilation hood 301 away from the reactor 2 is connected to the filter 302, and the side of the filter 302 away from the ventilation hood 301 is connected to the The external air duct 303, the ventilation hood 301, the filter 302 and the external air duct 303 are connected to each other by a rectangular flange structure, and the ventilation hood 301 and the reactor 2 are connected to each other by a rectangular flange structure. The air outlet pipe 4 and the air inlet pipe 3 have the same structure, and the air outlet pipe 4 and the air inlet pipe 3 are combined and connected with the combination pipe 5 through a rectangular flange structure. As needed, the flange connection structure between the combination pipe 5 and the air inlet pipe 3 and the air outlet pipe 4 can be used to connect multiple groups of reactors 2 end to end, thereby forming a structure in which multiple groups of reactors 2 are connected in series, thereby achieving maximum denitrification treatment of the flue gas.

[0024] In summary, if Figures 1 to 3 As shown, when using the precise and efficient denitrification device, first, according to the denitrification treatment needs of the flue gas, the flange connection structure between the two ends of the combined pipe 5 and the air inlet pipe 3 and the air outlet pipe 4 can be appropriately used to connect multiple groups of reactors 2 end to end, thereby forming a series structure;

[0025] When the flue gas enters the air inlet pipe 3 through the combined pipe 5, the filter 302 between the ventilation hood 301 and the external air duct 303 will filter the flue gas. Then, when it enters the reactor 2, it will pass through the dust removal net 202 provided between the reaction box 201 and the air inlet pipe 3 again, thereby performing a second filtration on the flue gas.

[0026] Afterwards, the atomizing nozzle 205 inside the sealed sleeve 204 is pre-atomized and sprayed with a denitrification agent, such as ammonia water, through the connecting pipe 206. At the same time, the catalyst layer 203 inside the reaction box 201 is used to fully react with the flue gas to achieve denitrification. Afterwards, when the flue gas is discharged from the reactor 2 through the outlet pipe 4, it will be further filtered by the dust removal net 202 at the bottom of the reaction box 201 and the filter 302 between the outlet pipe 4, and then enter the next group of reactors 2 or the downstream equipment connected thereto.

[0027] By utilizing the structural extension and retraction of the lifting columns 103 vertically installed at the four diagonal positions at the bottom of the main platform 101, the vertical height of the main platform 101 can be adjusted, thereby facilitating operators to climb onto the main platform 101 to perform equipment maintenance on the reactor 2. The fixing piles 104 at the bottom of the lifting columns 103, by utilizing the four bolt structures at the four diagonal positions of the lifting columns 103 and the fixing piles 104, can connect and fix the entire inspection platform 1 to the ground to ensure the stability of the structure. The supporting angle plates 102 improve the structural support of the main platform 101 to ensure the safety of operators standing on the main platform 101.

[0028] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A precise and efficient denitrification device, comprising an inspection platform (1) and a reactor (2), characterized in that: A reactor (2) is installed in the middle of the top of the inspection platform (1), and an air inlet pipe (3) is connected to the top of the reactor (2), and an air outlet pipe (4) is installed at the bottom of the reactor (2). The end of the air inlet pipe (3) away from the reactor (2) is connected to a combination pipe (5). The reactor (2) comprises a reaction box (201), a dust removal net (202), a catalyst layer plate (203), a sealing sleeve (204), an atomizing nozzle (205) and a connecting pipe (206). The dust removal net (202) is provided on both the upper and lower sides of the reaction box (201), and the catalyst layer plate (203) is horizontally provided inside the reaction box (201). The sealing sleeve (204) is installed on the left and right sides of the reaction box (201), and the atomizing nozzle (205) is installed inside the sealing sleeve (204). At the same time, the end of the atomizing nozzle (205) away from the output end is installed with a connecting pipe (206).

2. A precise and efficient denitrification device according to claim 1, characterized in that: The inspection platform (1) comprises a main platform (101), supporting angle plates (102) and lifting columns (103), wherein the bottom of the main platform (101) is provided with supporting angle plates (102) installed around the periphery, and lifting columns (103) are vertically installed at the four diagonal positions of the bottom of the main platform (101).

3. A precise and efficient denitrification device according to claim 2, characterized in that: The inspection platform (1) further comprises a fixing pile (104) and an installation opening (105), wherein the fixing pile (104) is installed at the bottom of the lifting column (103), and the installation opening (105) is opened in the middle of the top surface of the main platform (101).

4. A precise and efficient denitrification device according to claim 3, characterized in that: The supporting angle plates (102) are arranged in a triangular structure and are equidistantly arranged at the four edges of the bottom of the main frame (101). Bolt structures are vertically installed at the four diagonal corners of the fixing piles (104). The top surface structure of the installation opening (105) matches the surface structure of the reaction box (201).

5. A precise and efficient denitrification device according to claim 1, characterized in that: The dust removal net (202) is arranged at the connection between the reaction box (201) and the air inlet pipe (3) and the air outlet pipe (4), and the catalyst layer plate (203) is arranged from top to bottom in a "Z"-shaped structure inside the reaction box (201), and the sealing sleeve (204) and the atomizing nozzle (205) are arranged on one side of the catalyst layer plate (203) that intersects with each other, and the atomizing nozzle (205) is connected to the connecting pipe (206) through a quick connector.

6. A precise and efficient denitrification device according to claim 1, characterized in that: The air inlet pipe (3) comprises a ventilation hood (301), a filter (302) and an external air duct (303); the side of the ventilation hood (301) away from the reactor (2) is connected to the filter (302), and the side of the filter (302) away from the ventilation hood (301) is connected to the external air duct (303).

7. A precise and efficient denitrification device according to claim 6, characterized in that: The ventilation hood (301), the filter (302) and the external air duct (303) are connected to each other using a rectangular flange structure, and the ventilation hood (301) and the reactor (2) are connected to each other using a rectangular flange structure.

8. The precise and efficient denitrification device according to claim 1, characterized in that: The air outlet pipe (4) and the air inlet pipe (3) have the same structure, and both the air outlet pipe (4) and the air inlet pipe (3) are combined and connected with the combined pipe (5) via a rectangular flange structure.

Images