Modular scr reactor

Abstract

This utility model relates to the field of flue gas reaction technology, specifically a modular SCR reactor. It includes a flexible material inlet, with one end connected to a reactor body for SCR reaction, and the other end connected to a flexible material outlet. A housing is attached to one side of the inlet surface, and a motor is fixed inside the housing. A rotating plate is fixed to the output shaft of the motor. In use, the rotating plate, driven by the motor, rotates the reaction plate, causing it to flip. After a period of operation, the reaction surface is rotated to the back, allowing particles on the reaction plate surface to fall off under the impact of flue gas, achieving backflushing, anti-clogging, and self-cleaning. Furthermore, when the rotating plate flips, a vibration mechanism, under gravity, causes the rotating plate and reaction plate to vibrate, loosening the particles and aiding in the self-cleaning function of the reaction plate, thus improving the practicality of the device.

Description

Technical Field

[0001] This utility model relates to the field of flue gas reaction technology, specifically a modular SCR reactor. Background Technology

[0002] The SCR denitrification reactor and auxiliary systems are externally mounted to meet the catalyst installation requirements for specific denitrification efficiencies. The flue gas design temperature is 200℃~400℃ to meet operating conditions under various boiler loads. The SCR reactor and auxiliary systems consist of the catalyst, catalyst support beams, and soot blowers. Flue gas from the boiler outlet enters the SCR reactor through the flue, where, under catalytic action, NH3 and NO... x The reaction removes NO. x Catalyst promotes the reaction of ammonia and NO x The reaction.

[0003] Currently, when the reactor is in use, flue gas carrying particulate matter enters from the air inlet and impacts the reaction plate to carry out the denitrification reaction. However, larger particles will remain on the surface of the reaction plate for a long time, which will not only reduce the reaction rate but also slow down the flue gas passage efficiency, thereby increasing the pressure inside the reactor and causing local high temperature, which will have a certain impact on the safety of the reactor. Utility Model Content

[0004] The purpose of this invention is to provide a modular SCR reactor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a modular SCR reactor, comprising a flexible material air inlet, the other end of which is connected to a reactor body for SCR reaction, the other end of which is connected to a flexible material air outlet, a housing being bolted to one side of the air inlet surface, a motor being fixed inside the housing, a rotating plate being fixed to the output shaft of the motor, a reaction plate being disposed on the surface of the rotating plate, and three rotating plates and reaction plates being disposed thereon, all of which are driven by a timing belt pulley and the motor output shaft, and further comprising: A vibration mechanism installed inside the rotating plate, which causes the reaction plate to vibrate under gravity.

[0006] Preferably, the vibration mechanism includes a channel formed in the inner cavity of the rotating plate, a plurality of baffles are fixed on the surface of the channel, the plurality of baffles are staggered to form a vibration channel, and a plurality of gravity balls are movably arranged on the surface of the channel.

[0007] Preferably, a plurality of wedge-shaped blocks are fixed on the surface of the channel, one end of the wedge blocks blocking the channel, and the other end of the wedge blocks guiding the gravity ball.

[0008] Preferably, a support disk is rotatably mounted on one side of the rotating plate surface, and the support disk is fixed to the surface of the reactor body.

[0009] Preferably, the inner cavity of the reactor body is fixed with a plurality of sealing strips, the sealing strips being made of flexible material and having one side being arc-shaped.

[0010] Preferably, a guide plate is provided on the side of the reactor body near the air inlet, and the surface of the guide plate has several through holes.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, this invention allows the rotating plate to rotate and flip the reaction plate under the action of a motor. After a period of operation, the reaction surface turns to the back, and under the impact of the flue gas, the particles on the surface of the reaction plate fall off, achieving the purpose of backflushing, preventing blockage, and self-cleaning. In addition, when the rotating plate rotates, the vibration mechanism causes the rotating plate and the reaction plate to vibrate under the action of gravity. The rotation loosens the particles, thus assisting in the self-cleaning function of the reaction plate and improving the practicality of the device. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the reactor body after it has been cut open in this utility model; Figure 3 This is a partial three-dimensional structural diagram of the present invention; Figure 4 This is a partial three-dimensional structural diagram of the present invention; Figure 5 This utility model Figure 4 A magnified schematic diagram of the local three-dimensional structure at point A.

[0013] In the diagram: 1. Air inlet; 2. Reactor body; 3. Air outlet; 4. Casing; 5. Motor; 6. Rotating plate; 7. Reaction plate; 8. Support plate; 9. Sealing strip; 10. Vibration mechanism; 101. Channel; 102. Gravity ball; 103. Baffle; 11. Wedge block; 12. Air guide plate. Detailed Implementation

[0014] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0015] Please see Figure 1-5As shown, a modular SCR reactor includes a flexible material air inlet 1. The other end of the air inlet 1 is connected to a reactor body 2 for SCR reaction. A guide plate 12 is provided on the side of the reactor body 2 near the air inlet 1. The surface of the guide plate 12 has several through holes. Under the action of the guide plate 12, the flue gas sent from the air inlet 1 can be initially blocked, and the flue gas can be concentrated on the surface of the guide plate 12. Under the action of the through holes, the flue gas can be evenly entered into the reactor body 2, improving the uniformity of the reaction plate 7. In addition, the diameter of the through holes on the surface of the guide plate 12 is set in the range of 1cm-2cm to avoid the normal flow of flue gas being affected by the small hole diameter.

[0016] The other end of the reactor body 2 is connected to an air outlet 3 made of flexible material. An organic shell 4 is bolted to one side of the surface of the air inlet 1. A motor 5 is fixed inside the cavity of the organic shell 4. A rotating plate 6 is fixed to the output shaft of the motor 5. A support plate 8 rotates on one side of the surface of the rotating plate 6. The support plate 8 is fixed to the surface of the reactor body 2 to provide support for the rotation of the rotating plate 6 and improve the stability of the rotating plate 6 when it rotates. Several sealing strips 9 are fixed inside the cavity of the reactor body 2. The sealing strips 9 are made of flexible material and have an arc shape on one side. Under the action of the sealing strips 9, they not only play a sealing role when the rotating plate 6 and the sealing strips 9 are in contact, but also provide redundancy for the thermal expansion and contraction of the rotating plate 6 due to the action of the flexible material.

[0017] The surface of the rotating plate 6 is provided with a reaction plate 7. There are three rotating plates 6 and reaction plates 7, and all of them are driven by a timing belt pulley and the output shaft of the motor 5.

[0018] A vibration mechanism 10, located within the cavity of the rotating plate 6, causes the reaction plate 7 to vibrate under gravity. The vibration mechanism 10 includes a channel 101 formed within the cavity of the rotating plate 6. Several baffles 103 are fixed to the surface of the channel 101, arranged alternately to form a vibration channel. Several gravity balls 102 are movably disposed on the surface of the channel 101. When the rotating plate 6 rotates, the gravity balls 102 roll within the channel 101 under the influence of gravity. Subsequently, under the action of the baffles 103, the gravity balls 102 fall sequentially and impact the baffles 103, thus fixing themselves to the rotating plate 6. The vibration of the baffle 103 inside the cavity of plate 6 can cause the reaction plate 7 to vibrate, thereby achieving the purpose of vibrating the large particles on the surface of the reaction plate 7. Several wedge blocks 11 are fixed on the surface of the channel 101. One end of the wedge block 11 blocks the channel 101, and the other end of the wedge block 11 guides the gravity ball 102. Under the action of the wedge block 11, the inclined slope can not only guide the sliding of the gravity ball 102, but also provide it with an initial velocity, improve the practicality of the gravity ball 102, and block the channel 101 to prevent the gravity ball 102 from sliding into the non-working area.

[0019] Working principle: During use, flue gas enters the reactor body 2 through the air inlet 1, and under the action of the air guide plate 12, the flue gas is initially guided to smoothly enter the internal space of the reactor body 2. When the flue gas comes into contact with the surface of the reaction plate 7, under the action of the catalyst, the flue gas undergoes a denitrification reaction, reducing the nitrogen oxides in the flue gas into non-toxic and non-polluting nitrogen and water.

[0020] In daily use, larger diameter particles in the flue gas will accumulate on the surface of the reaction plate 7. At this time, the operator can stop the flue gas delivery from the air inlet 1, and then use the motor 5 to make the rotating plate 6 rotate, which will cause the reaction plate 7 to flip over, exposing the other side of the reaction plate 7. This allows the cleaner side to participate in the work, and when the flue gas passes through the reaction plate 7, it can impact the other side to achieve the purpose of backflushing, preventing blockage and self-cleaning.

[0021] Because this device is equipped with multiple rotating plates 6, it can achieve the purpose of dislodging dust particles by repeatedly flipping them.

[0022] When the rotating plate 6 flips, the gravity ball 102 rolls in the channel 101 under the action of gravity, which in turn causes the gravity ball 102 to impact the baffle 103 or the inner cavity of the rotating plate 6, causing the rotating plate 6 and the reaction plate 7 to vibrate, thereby loosening the large particles on the surface of the reaction plate 7, which facilitates the backwashing of the flue gas.

[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A modular SCR reactor, comprising an air inlet (1) made of flexible material, characterized in that: The other end of the air inlet (1) is connected to the reactor body (2) for SCR reaction, and the other end of the reactor body (2) is connected to the air outlet (3) of flexible material. A housing (4) is bolted to one side of the surface of the air inlet (1). A motor (5) is fixed in the inner cavity of the housing (4). A rotating plate (6) is fixed to the output shaft of the motor (5). A reaction plate (7) is provided on the surface of the rotating plate (6). There are three rotating plates (6) and reaction plates (7), and they are all driven by a timing belt pulley and the output shaft of the motor (5). The system also includes: A vibration mechanism (10) is installed inside the rotating plate (6) to cause the reaction plate (7) to vibrate by gravity.

2. The modular SCR reactor according to claim 1, characterized in that: The vibration mechanism (10) includes a channel (101) opened in the inner cavity of the rotating plate (6). Several baffles (103) are fixed on the surface of the channel (101). The several baffles (103) are staggered to form a vibration channel. Several gravity balls (102) are movably arranged on the surface of the channel (101).

3. A modular SCR reactor according to claim 2, characterized in that: Several wedge-shaped blocks (11) are fixed on the surface of the channel (101). One end of the wedge-shaped block (11) blocks the channel (101), and the other end of the wedge-shaped block (11) guides the gravity ball (102).

4. A modular SCR reactor according to claim 1, characterized in that: A support disk (8) is rotated on one side of the surface of the rotating plate (6), and the support disk (8) is fixed to the surface of the reactor body (2).

5. A modular SCR reactor according to claim 1, characterized in that: The inner cavity of the reactor body (2) is fixed with several sealing strips (9), which are made of flexible material and have an arc shape on one side.

6. A modular SCR reactor according to claim 1, characterized in that: The reactor body (2) is provided with a guide plate (12) on the side near the air inlet (1), and the surface of the guide plate (12) has several through holes.

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