Flue gas flow mixing device for industrial furnace flue denitration

Abstract

The utility model discloses an industrial furnace flue denitration flue gas flow mixing device, relates to the technical field of flue gas denitration, and aims to solve the problems that most denitration devices occupy space and denitration agents and flue gas are not uniformly mixed in the prior art, so that the denitration effect is poorer. The frame comprises a first frame and a second frame, a first support is arranged on the first frame, guide vanes are connected to the first support, a driving motor is arranged on the other side of the first support, a second support is arranged on the second frame, and stirring vanes are connected to the second support; according to the denitration flue gas flow mixing device, the denitration flue gas flow mixing device and the flue are installed into a whole, a large amount of space can be saved, the gas leakage holes are formed in the flow mixing blades, flue gas is prevented from rapidly penetrating through the flue gas due to stirring of the flow mixing blades, and therefore sufficient fusion of the flue gas and a denitration agent is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas denitration, in particular to a flue gas mixed flow device for denitration of an industrial furnace flue. Background Art

[0002] In today's social production, coal-fired boilers are widely used. Coal-fired boilers produce a large amount of smoke when working, and the dust, sulfur and nitrogen oxides in the smoke are all substances that pollute the atmosphere. Therefore, the smoke pollution problem of coal-fired boilers has always troubled people.

[0003] With the development of the economy, the requirements for environmental protection are getting higher and higher. The problem of smoke pollution from coal-fired boilers is becoming increasingly prominent. For a long time, people have proposed many technologies and products to solve this problem. Most of the denitrification devices in the existing technology are to set a denitrification tower on one side of the furnace, which takes up a lot of space, and the denitrification agent and the flue gas are not mixed evenly, resulting in poor denitrification effect. This utility model is used to solve this problem. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a flue gas mixing flow device for denitrification of an industrial furnace flue, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned objectives, the present invention discloses a flue gas mixing device for denitrification in an industrial furnace flue. The device adopts a technical solution comprising a pipe, a frame disposed within the pipe, a cavity disposed within the frame, an atomizing nozzle disposed on a corresponding surface of the frame, the atomizing nozzle being in communication with the cavity, the frame comprising a first frame and a second frame, the first frame being provided with a first bracket rotatably connected to a guide vane, a drive motor being provided on the other side of the first bracket, the second frame being provided with a second bracket rotatably connected to a stirring vane, the guide vane and the stirring vane being directly connected via a mixing vane.

[0006] As a preferred technical solution of the present invention, flanges are provided on both sides of the pipe to facilitate installation between the smoke exhaust pipes.

[0007] As a preferred technical solution of the present invention, a water inlet pipe is connected to the first frame and the second frame, and the water inlet pipe is connected to the atomizing nozzle through the cavity. The denitrification agent enters the cavity of the first frame and the second frame through the water inlet pipe, and the denitrification agent is sprayed out from the atomizing nozzle when the pressure is increased.

[0008] As a preferred technical solution of the present invention, there are multiple atomizing nozzles, and they are arranged in a circular array to the facing surfaces of the first frame and the second frame, so that the denitrification agent spraying range is larger and more uniform.

[0009] As an optimal technical solution of the present invention, the stirring blade is a flat blade, and the guide blade is a blade with an arc. The stirring blade only needs to stir the denitrification agent and the flue gas, and the guide blade can drive the airflow to move to the right due to the arc.

[0010] As an optimal technical solution of the present invention, a plurality of leakage holes are provided on the mixed flow blades. The mixed flow blades are used to further stir and mix the flue gas and the denitrification agent. The leakage holes can prevent the flue gas from passing through quickly due to the stirring of the mixed flow blades, thereby improving the full fusion of the flue gas and the denitrification agent.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention can save a lot of space by integrating the denitrification flue gas mixing device with the flue; the stirring blade has no curvature, while the guide blade has a curvature; the stirring blade only needs to stir the denitrification agent and the flue gas; the guide blade has a curvature and can drive the airflow to the right to prevent the flue from being blocked; and the leakage holes are provided on the mixing blades, so that the flue gas can be prevented from passing through quickly due to the stirring of the mixing blades, thereby improving the full fusion of the flue gas and the denitrification agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0014] Figure 3 This is an exploded view of the internal structure of the utility model.

[0015] In the figure: 1. Pipe; 101. Flange; 2. First frame; 202. First bracket; 3. Second frame; 302. Second bracket; 4. Atomizing nozzle; 5. Mixing blade; 6. Guide blade; 7. Drive motor; 8. Mixing blade; 801. Leakage hole; 9. Water inlet pipe. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0017] like Figures 1 to 3As shown, the utility model discloses a flue gas mixing device for denitrification of an industrial furnace. The technical solution adopted is as follows: it includes a pipe 1, flanges 101 are provided on both sides of the pipe 1, a frame is provided inside the pipe 1, and the frame includes a first frame 2 and a second frame 3. A cavity is provided in the first frame 2 and the second frame 3. Atomizing nozzles 4 are provided on the opposite sides of the first frame 2 and the second frame 3. There are multiple atomizing nozzles 4, and they are arranged in a circular array on the first frame 2 and the second frame 3. A water inlet pipe 9 is provided on the first frame 2 and the second frame 3. The water inlet pipe 9 passes through The cavity is communicated with the atomizing nozzle 4. A first bracket 202 is provided on the first frame 2, and the first bracket 202 is rotatably connected to the guide blade 6. A drive motor 7 is provided on the other side of the first bracket 202, and the output shaft of the drive motor 7 is connected to the guide blade 6. A second bracket 302 is provided on the second frame 3, and the second bracket 302 is rotatably connected to the stirring blade 5. The stirring blade 5 is offset 45 degrees from the guide blade 6 and is connected through a mixing blade 8. The mixing blade 8 is provided with a leakage hole 801, and there are six leakage holes 801.

[0018] The working principle of the present invention is as follows: when denitrification of the flue of an industrial furnace is required, the pipe 1 needs to be connected to the flue in advance through the flange 101, and the water inlet pipe 9 needs to be connected to the denitrifier and the pump. When the flue gas in the flue needs to be denitrified, the pump and the drive motor 7 are started, and the drive motor 7 drives the guide blade 6 to rotate. The guide blade 6 drives the stirring blade 5 to rotate through the mixing blade 8. The denitrifier enters the cavity through the pump and the water inlet pipe 9, and is then atomized and sprayed into the inside of the pipe 1 through the atomizing nozzle 4. When the flue gas enters the pipe 1, it comes into contact with the denitrifier, and the stirring blade 5 performs preliminary mixing and stirring of the denitrifier and the flue gas. After that, the mixing blade 8 further stirs the flue gas and the denitrifier to make them evenly mixed. The leakage hole 801 allows the flue gas to pass through from the inside to prevent the flue gas from passing through the pipe 1 too quickly, resulting in poor mixing. The guide blade 6 has a certain inclination angle to assist the gas to pass through the pipe 1 to prevent gas blockage, and then the gas continues to move to the right.

[0019] The circuits and mechanical connections involved in the present invention are conventional means used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments, and they belong to common knowledge.

[0020] Components not described in detail herein are prior art.

[0021] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flue gas mixing flow device for denitrification of industrial furnace flue, characterized by: The invention comprises a pipe (1), wherein a frame is provided inside the pipe (1), wherein a cavity is provided inside the frame, an atomizing nozzle (4) is provided on a corresponding surface of the frame, and the atomizing nozzle (4) is communicated with the cavity, and the frame comprises a first frame (2) and a second frame (3), wherein a first bracket (202) is provided on the first frame (2), and a guide blade (6) is rotatably connected to the first bracket (202), and a driving motor (7) is provided on the other side of the first bracket (202), and a second bracket (302) is provided on the second frame (3), and a stirring blade (5) is rotatably connected to the second bracket (302), and the guide blade (6) and the stirring blade (5) are directly connected via a mixing blade (8).

2. The flue gas mixing flow device for denitrification of an industrial furnace flue according to claim 1, characterized in that: Flanges (101) are provided on both sides of the pipeline (1).

3. The flue gas mixing flow device for denitrification of an industrial furnace flue according to claim 1, characterized in that: A water inlet pipe (9) is connected to the first frame (2) and the second frame (3), and the water inlet pipe (9) is connected to the atomizing nozzle (4) through the cavity.

4. The flue gas mixing flow device for denitrification of an industrial furnace flue according to claim 3, characterized in that: There are a plurality of atomizing nozzles (4), which are arranged in a circular array at the facing surfaces of the first frame (2) and the second frame (3).

5. The flue gas mixing flow device for denitrification of an industrial furnace flue according to claim 1, characterized in that: The stirring blade (5) is a flat blade, and the guide blade (6) is a blade with a curvature.

6. The flue gas mixing flow device for denitrification of an industrial furnace flue according to claim 1, characterized in that: The mixed flow blade (8) is provided with a leakage hole (801), and there are a plurality of leakage holes (801).

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