Device for adsorbing dust in chimney by using static electricity

Abstract

The utility model discloses a device for adsorbing dust by utilizing static electricity in a chimney. The device comprises a lower spraying and flushing pipe, a lower supporting piece, a lower flue gas guide plate, an annular roll control plate, a filler dust collection ball, a flue gas baffle, an upper flue gas guide plate, an upper supporting piece, an upper spraying and flushing pipe, a tower body, a fixing frame, a flue gas inlet pipeline and a flue gas exhaust pipeline, the inner wall of the tower body is fixedly connected with a flue gas baffle, the flue gas baffle is fixedly connected with a lower flue gas guide plate and an annular coil control plate, a filler dust collection ball is arranged between the lower flue gas guide plate and the annular coil control plate, and the top end of the lower flue gas guide plate is provided with an upper flue gas guide plate; the device is placed at the uppermost end of the desulfurization tower, the chimney effect is fully utilized, the natural rising force of flue gas is enhanced by utilizing the air flowing phenomenon caused by the temperature difference of air inside and outside a chimney, and therefore the wind resistance of a flue is greatly reduced, energy consumption is reduced, and the overall efficiency of a flue gas emission system is improved.

Description

Technical Field

[0001] This utility model relates to the field of flue gas emission technology, and in particular to a device for electrostatic adsorption of dust in a chimney. Background Technology

[0002] In the process of flue gas emission, dust is an important component. It enters the chimney along with the flue gas and is then released into the atmosphere. In order to ensure environmental quality and comply with strict emission standards, dust must be treated by a series of precise and efficient dust removal equipment before it is discharged from the chimney. The aim is to effectively capture and remove dust particles in the flue gas, ensuring that it can be safely and compliantly discharged only after meeting the established emission standards.

[0003] In flue gas emission systems, traditional designs often face the problem of high flue resistance and difficulty in effectively controlling dust emissions. High flue resistance not only increases energy consumption and reduces system efficiency, but may also affect the stability and environmental performance of the entire emission process. Utility Model Content

[0004] The purpose of this invention is to provide a device for electrostatic adsorption of dust in a chimney, in order to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a device for electrostatic adsorption of dust in a chimney, comprising a tower body, a flue gas baffle fixedly connected to the inner wall of the tower body, a lower flue gas guide plate and a ring control plate fixedly connected to the flue gas baffle plate, a packing dust-collecting ball arranged between the lower flue gas guide plate and the ring control plate, an upper flue gas guide plate arranged at the top of the lower flue gas guide plate, and the upper flue gas guide plate fixedly connected to the inner wall of the tower body.

[0006] As a further technical solution of this utility model, a lower support member and an upper support member are fixedly connected to the inner wall of the tower body, and the flue gas baffle is fixedly connected to the lower support member and the upper support member.

[0007] As a further technical solution of this utility model, a fixed frame is fixedly connected to the flue gas baffle, and the lower flue gas guide plate is fixedly connected to the fixed frame.

[0008] As a further technical solution of this utility model, the tower body is provided with a lower spray flushing pipe and an upper spray flushing pipe.

[0009] As a further technical solution of this utility model, a first connecting flange and a second connecting flange are fixedly connected to the lower spray flushing pipe and the upper spray flushing pipe, respectively.

[0010] As a further technical solution of this utility model, a smoke inlet pipe is provided on the tower body.

[0011] As a further technical solution of this utility model, a smoke exhaust pipe is provided on the tower body.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: By placing the device at the top of the desulfurization tower, this utility model makes full use of the "chimney effect," utilizing the airflow phenomenon caused by the temperature difference between the air inside and outside the chimney to enhance the natural upward force of the flue gas, thereby greatly reducing the wind resistance of the flue, helping to reduce energy consumption, and improving the overall efficiency of the flue gas emission system. Through its unique structural characteristics, the device utilizes the flow velocity generated by the flue gas during its flow to cause friction between the packing material inside the device. This friction can generate an electrostatic effect, and static electricity has a strong adsorption capacity for dust particles. When the dust in the flue gas flows through the device, it will be effectively adsorbed by the static electricity generated by the friction of the packing material, thereby significantly reducing the amount of dust emitted. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other 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] Figure 2 for Figure 1 A magnified structural diagram of region A in the middle.

[0016] In the diagram: 1. Lower spray flushing pipe; 2. Lower support component; 3. Lower flue gas guide plate; 4. Circulating control plate; 5. Packing dust collection ball; 6. Flue gas baffle; 7. Upper flue gas guide plate; 8. Upper support component; 9. Upper spray flushing pipe; 10. Tower body; 11. Fixing frame; 12. First connecting flange; 13. Second connecting flange; 14. Smoke inlet pipe; 15. Smoke exhaust pipe. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Please see the appendix Figure 1 - Appendix Figure 2 The present invention provides an embodiment of a device for electrostatic adsorption of dust in a chimney, comprising a tower body 10, a flue gas baffle 6 fixedly connected to the inner wall of the tower body 10, a lower flue gas guide plate 3 and a ring control plate 4 fixedly connected to the flue gas baffle 6, a packing dust-collecting ball 5 disposed between the lower flue gas guide plate 3 and the ring control plate 4, an upper flue gas guide plate 7 disposed at the top of the lower flue gas guide plate 3, and the upper flue gas guide plate 7 fixedly connected to the inner wall of the tower body 10.

[0019] The inner wall of the tower body 10 is fixedly connected to a lower support member 2 and an upper support member 8, and a flue gas baffle 6 is fixedly connected to the lower support member 2 and the upper support member 8; a fixing frame 11 is fixedly connected to the flue gas baffle 6, and a lower flue gas guide plate 3 is fixedly connected to the fixing frame 11, the fixing frame 11 is used to fix the lower flue gas guide plate 3; a lower spray flushing pipe 1 and an upper spray flushing pipe 9 are provided on the tower body 10; a first connecting flange 12 and a second connecting flange 13 are fixedly connected to the lower spray flushing pipe 1 and the upper spray flushing pipe 9 respectively, and spray flushing is performed through the lower spray flushing pipe 1 and the upper spray flushing pipe 9, the first connecting flange 12 and the second connecting flange 13 are used to connect the lower spray flushing pipe 1 and the upper spray flushing pipe 9; a smoke inlet pipe 14 is provided on the tower body 10, the smoke inlet pipe 14 is used for smoke inlet; a smoke exhaust pipe 15 is provided on the tower body 10, the smoke exhaust pipe 15 is used for smoke exhaust.

[0020] Working principle: The electrostatic dust adsorption device is connected to the inner wall of the tower body 10 through the lower support 2 and the upper support 8. The lower support 2 supports the lower flue gas guide plate 3 through the fixing frame 11. The filler dust-collecting balls 5 are evenly distributed on the upper part of the lower flue gas guide plate 3. The upper flue gas guide plate 7 is fixed on the upper part of the filler dust-collecting balls 5 by the upper support 8. The height between the upper flue gas guide plate 7 and the lower flue gas guide plate 3 is between 350 and 800 mm. The filler dust-collecting balls 5 fill the space between the upper flue gas guide plate 7 and the lower flue gas guide plate 3. The filling amount is positively correlated with the flue gas flow rate and velocity to ensure that the filler can move fully between the upper flue gas guide plate 7 and the lower flue gas guide plate 3 to generate friction.

[0021] During operation, smoke is introduced through inlet duct 14 and discharged through exhaust duct 15. The process involves dividing the flue gas into N portions using baffles, with each portion handling 40-50 m³ of flue gas. 3 / h, and then the flue gas undergoes multiple speed and direction changes while rotating and rising along the corresponding circulation control plate. Under the specially designed centripetal wind force, the flue gas with high humidity undergoes spraying and rinsing through the lower spray flushing pipe 1 and the upper spray flushing pipe 9 during the speed and direction changes. The first connecting flange 12 and the second connecting flange 13 are used to connect the lower spray flushing pipe 1 and the upper spray flushing pipe 9. Droplets of different sizes collide and condense with each other, droplets and solid particles, and solid particles with each other. During this mass and heat transfer process, agglomeration occurs. A special material filler dust-collecting ball 5 is installed in the ring above the lower flue gas guide plate 3. These filler dust-collecting balls 5 are blown into the air by the rotating and rising wind force and "revolve" along their respective ring control plates 4 on the flue gas baffle 6. When these dust-collecting balls revolve, they will rub against each other and generate "static electricity".

[0022] The specially designed dust-collecting balls are made of a high-molecular resin formula that easily generates static electricity when rubbed. The desorption capacity of small droplets and micro-dust adsorbed on the surface of the balls is constant. The air force in the equipment will not carry away micro-dust and micro-droplets from the surface of the balls, which can improve dust removal efficiency and stabilize dust removal rate. Most importantly, the flue gas impacts the surface of each layer of balls after condensation. When the micro-droplets impact the surface of the balls, they are adsorbed and form a water film on the surface of the balls. As the water film thickens, droplets are formed. Under the action of gravity, the droplets condense with the micro-droplets and micro-dust. When the adsorbed dust particles overcome the surface tension of the water film, desorption occurs. The water droplets fall to the bottom of the desulfurization tower under the action of gravity, completing the dust removal.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.

[0024] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for electrostatically adsorbing dust in a chimney, comprising a tower body (10), characterized in that: A flue gas baffle (6) is fixedly connected to the inner wall of the tower body (10). A lower flue gas guide plate (3) and a ring control plate (4) are fixedly connected to the flue gas baffle (6). A packing dust collection ball (5) is provided between the lower flue gas guide plate (3) and the ring control plate (4). An upper flue gas guide plate (7) is provided at the top of the lower flue gas guide plate (3), and the upper flue gas guide plate (7) is fixedly connected to the inner wall of the tower body (10).

2. The device for electrostatic adsorption of dust in a chimney according to claim 1, characterized in that: The inner wall of the tower body (10) is fixedly connected to a lower support member (2) and an upper support member (8), and the flue gas baffle (6) is fixedly connected to the lower support member (2) and the upper support member (8).

3. The device for electrostatic adsorption of dust in a chimney according to claim 1, characterized in that: A fixing frame (11) is fixedly connected to the flue gas baffle (6), and the lower flue gas guide plate (3) is fixedly connected to the fixing frame (11).

4. The device for electrostatic adsorption of dust in a chimney according to claim 1, characterized in that: The tower body (10) is equipped with a lower spray flushing pipe (1) and an upper spray flushing pipe (9).

5. The device for electrostatic adsorption of dust in a chimney according to claim 4, characterized in that: The lower spray flushing pipe (1) and the upper spray flushing pipe (9) are respectively fixedly connected to a first connecting flange (12) and a second connecting flange (13).

6. The device for electrostatic adsorption of dust in a chimney according to claim 4, characterized in that: The tower body (10) is equipped with a smoke inlet pipe (14).

7. The device for electrostatic adsorption of dust in a chimney according to claim 4, characterized in that: The tower body (10) is equipped with a smoke exhaust pipe (15).

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