A flue gas treatment device

Abstract

The utility model provides a kind of flue gas treatment device, including equipment main body, its inside is formed for the treatment interval chamber of flue gas treatment.Shell is set in the top of equipment main body, and it is formed with transverse flue gas outlet.Supporting flat plate is set in the top of shell.Multiple protective tube shells are all longitudinally through supporting flat plate, and bottom end is communicated with treatment interval chamber via shell.Multiple cathode wires, each cathode wire is set in one protective tube shell, so as to extend into treatment interval chamber, to discharge in treatment interval chamber.Guiding member is set in the top of supporting flat plate, and is connected with multiple cathode wires respectively, to pass current to multiple cathode wires.And multiple anode plates are set in the top of treatment interval chamber, for adsorbing mist drop or dust charged due to cathode wire discharge.Help to improve the convenience of cathode wire maintenance replacement.

Description

Technical Field

[0001] This utility model relates to the field of flue gas treatment technology, and in particular to a flue gas treatment device. Background Technology

[0002] Flue gas purification is a crucial step in industrial production and is of great significance for environmental protection. Currently, flue gas treatment towers are commonly used for this purpose. Flue gas is fed into the tower, where it is sprayed with a liquid specifically designed for purification, such as desulfurization slurry, to achieve purification. To further enhance the purification effect, some flue gas treatment towers also perform a demisting process before emission, removing mist droplets and dust from the flue gas.

[0003] Electrostatic precipitator technology is one of the common defogging methods. The cathode wire and the anode plate are the two main components of electrostatic precipitator technology. The cathode wire is used to discharge to generate a large number of electrons in the space. After the mist droplets and dust are charged, they are adsorbed by the anode plate, thereby removing the mist droplets and dust from the flue gas flowing through the area where the anode plate is located. Utility Model Content

[0004] One objective of this invention is to provide a flue gas treatment device that can improve the ease of maintenance of cathode wires.

[0005] Specifically, this utility model provides a flue gas treatment device, comprising: The main body of the equipment has an internal treatment chamber for flue gas treatment. A cover is disposed on top of the main body of the equipment and communicates with the processing chamber, and the cover forms a transverse flue gas outlet; A support plate is provided on top of the housing; Multiple protective tube shells pass longitudinally through the supporting plate, and their bottom ends communicate with the processing chamber via the cover. Multiple cathode wires, each of which is disposed within a protective casing, extend into the processing chamber to discharge into the processing chamber; A current guide, disposed on the top of the supporting plate and connected to the plurality of cathode wires respectively, to transmit current to the plurality of cathode wires; and Multiple anode plates are disposed at the top of the processing chamber to adsorb droplets or dust charged by the discharge of the cathode wire.

[0006] Optionally, the protective casing includes a tube body and a top cover, wherein the top cover is disposed at the top of the tube body and is detachably connected to the tube body.

[0007] Optionally, the pipe body includes a first pipe segment and a second pipe segment, the first pipe segment is disposed on top of the second pipe segment and is located above the support plate, and the inner diameter of the first pipe segment is larger than the inner diameter of the second pipe segment.

[0008] Optionally, a fixing plate is provided inside the protective tube shell. The fixing plate is fixedly connected to the inner wall of the protective tube shell. The fixing plate is provided with a through hole, through which the cathode wire passes and is clamped by the fixing plate.

[0009] Optionally, the protective casing is provided with a pressure relief hole on its side wall.

[0010] Optionally, the plurality of anode plates are distributed along the extension direction of the axis of the flue gas outlet in such a manner that the plates with the largest areas face each other.

[0011] Optionally, it also includes: A cleaning main pipe is located at the top of the supporting plate; and Multiple cleaning branch pipes are provided, each extending longitudinally, with one end connected to the main cleaning pipe and the other end extending into the processing chamber, thereby spraying cleaning fluid onto the anode plate.

[0012] Optionally, a cooling section is provided on the side of the main body of the equipment, and the cooling section and the side of the main body of the equipment together form a cooling space that is open at the top and bottom; A fan is installed in the cooling space to drive airflow through the cooling space to cool the processing room.

[0013] Optionally, the cooling space is further provided with a spraying device for spraying liquid onto the outer wall of the main body of the equipment.

[0014] Optionally, a recovery tank is provided at the bottom of the cooling space to receive the liquid sprayed by the spraying device for recycling.

[0015] This utility model discloses a flue gas treatment device with a cover on top of the main body of the equipment, forming a transverse flue gas outlet. A support plate is installed on top of the cover. Multiple protective tubes are installed longitudinally, passing through the support plate and communicating with the treatment chamber. Cathode wires are installed inside the protective tubes, extending into the treatment chamber to discharge into it. On the one hand, by placing the flue gas outlet horizontally, compared to a longitudinal flue gas outlet, it helps to reduce the flue gas velocity at the top of the treatment chamber, allowing the flue gas to flow more gently towards the outlet. This prevents excessively fast-flowing flue gas from quickly carrying droplets and dust out of the outlet, thus improving the demisting and dust removal effect of the flue gas. On the other hand, the cathode wires extend into the treatment chamber from the outside, allowing maintenance personnel to directly replace and repair the cathode wires on the support plate. This not only improves the convenience and efficiency of cathode wire replacement and repair but also eliminates the need for maintenance personnel to enter the treatment chamber, reducing their exposure to hazardous environments and improving safety.

[0016] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0017] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings: Figure 1 This is a schematic diagram of a flue gas treatment device according to an embodiment of the present invention; Figure 2 This is a partial schematic diagram of a flue gas treatment device according to an embodiment of the present invention; Figure 3 This is a partial schematic cross-sectional view of a flue gas treatment device according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the protective tube shell in a flue gas treatment device according to an embodiment of the present invention; Figure 5 This is a partial cross-sectional view of the protective casing in a flue gas treatment device according to an embodiment of the present utility model; Figure 6 This is a schematic cross-sectional view of the protective casing in a flue gas treatment device according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the cooling space of a flue gas treatment device according to an embodiment of the present invention. Detailed Implementation

[0018] Those skilled in the art should understand that the embodiments described below are merely some embodiments of the present invention, and not all embodiments of the present invention. These embodiments are intended to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those skilled in the art without creative effort should still fall within the scope of protection of the present invention.

[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Furthermore, it should be noted that, in the description of this utility model, 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 direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] like Figures 1 to 3As shown, in one embodiment, the flue gas treatment device 10 includes a main body 100, a cover 200, a support plate 300, multiple protective tube shells 400, a flow guide 500, multiple anode plates 600, and multiple cathode wires 700. The main body 100 internally forms a treatment chamber 101 for flue gas treatment and a flue gas inlet 102 communicating with the treatment chamber 101. The cover 200 is disposed on top of the main body 100, and the space enclosed by the cover 200 communicates with the treatment chamber 101. The cover 200 forms a transverse flue gas outlet 103. The support plate 300 is disposed on top of the cover 200. Multiple protective tube shells 400 extend longitudinally through the support plate 300, and their bottom ends communicate with the treatment chamber 101 via the cover 200. Each cathode wire 700 is disposed within a protective tube shell 400, thereby extending into the treatment chamber 101 to discharge into the treatment chamber 101. A flow guide 500 is disposed on the top of the support plate 300 and is connected to multiple cathode wires 700 respectively to transmit current to the multiple cathode wires 700. Multiple anode plates 600 are disposed on the top of the processing chamber 101 to adsorb droplets or dust charged by the discharge of the cathode wires 700.

[0022] like Figures 1 to 3 As shown, specifically, the main body of the equipment 100 is cuboid in shape, forming a processing chamber 101 inside. A flue gas inlet 102 is formed at the bottom of a longitudinal side wall of the main body of the equipment 100, through which flue gas enters the processing chamber 101. It should be noted that, although not shown in the figure, a spraying device is also provided inside the processing chamber 101 for spraying the reaction slurry that reacts with the flue gas into the processing chamber 101.

[0023] like Figures 1 to 3 As shown, the main body 100 of the equipment has an opening at its top. A cover 200 is positioned at the opening at the top of the main body 100, and the internal space enclosed by the cover 200 communicates with the processing chamber 101. In other words, the internal space enclosed by the cover 200 also constitutes part of the processing chamber 101. The cover 200 forms a transverse flue gas outlet 103, that is, a flue gas outlet 103 extending laterally along its axis. The flue gas entering the processing chamber 101 through the flue gas inlet 102 flows upward within the processing chamber 101 and eventually changes direction, exiting from the transverse flue gas outlet 103.

[0024] like Figures 1 to 3As shown, the support plate 300 rests flat on top of the cover 200. Multiple protective tube shells 400 are longitudinally extending tubular structures, passing through and being fixed to the support plate 300. The bottom end of the protective tube shell 400 communicates with the processing chamber 101 via the cover 200. Specifically, the cover 200 has through holes corresponding to the protective tube shells 400. The bottom end of the protective tube shell 400 can either extend directly into the processing chamber 101 through the through hole and communicate with it, or the bottom end of the protective tube shell 400 can be flush with the through hole on the cover 200, thus communicating with the processing chamber 101.

[0025] It should be noted that the support plate 300 can be directly in contact with and fixedly connected to the cover 200, or it can be fixedly connected to the cover 200 or the main body of the equipment 100 through a connector, or it can be fixedly connected to the cover 200 by using the protective tube shell 400 as a connector.

[0026] Continue to refer to Figures 1 to 3 As shown, each cathode wire 700 is housed within a protective casing 400, extending into the processing chamber 101. Specifically, the figure shows ten protective casings 400, arranged in two rows along a transverse direction perpendicular to the axis of the flue gas outlet 103, with five protective casings 400 in each row distributed along the extension direction of the flue gas outlet 103 axis. In other words, ten cathode wires 700 extend into the processing chamber 101.

[0027] It should be noted that the number of cathode wires and protective tubes shown in the figure is only an example, and those skilled in the art can set the number of cathode wires and protective tubes according to actual needs.

[0028] Continue to refer to Figures 1 to 3 As shown, the flow guide 500 is made of conductive material and is connected to the cathode wire 700 inside the protective shell 400 through multiple branches extending from the side wall of the protective shell 400, thereby conducting current to the cathode wire 700. The cathode wire 700 discharges inside the processing chamber 101, ionizing the air in the area to generate a large number of electrons. When the flue gas passes through, the droplets and dust in the flue gas carry electrons and are thus adsorbed by the anode plate 600, achieving the removal of droplets and dust from the flue gas.

[0029] In this embodiment, a cover 200 is provided on the top of the main body 100 of the equipment, and the cover 200 forms a transverse flue gas outlet 103. A support plate 300 is provided on the top of the cover 200. Multiple protective tube shells 400 are provided, which pass through the support plate 300 longitudinally and communicate with the processing chamber 101. A cathode wire 700 is provided inside the protective tube shell 400, so that the cathode wire 700 extends into the processing chamber 101 to discharge into the processing chamber 101. On the one hand, by placing the flue gas outlet 103 horizontally, compared with a longitudinal flue gas outlet, it helps to reduce the flue gas velocity at the top of the processing chamber 101, so that the flue gas flows more gently towards the flue gas outlet 103, thereby avoiding the excessively fast flow of flue gas from quickly carrying droplets and dust out of the flue gas outlet 103 and not having enough time to be adsorbed, which is beneficial to improving the demisting and dust removal effect of the flue gas. On the other hand, the cathode wire 700 extends from the outside of the processing chamber 101 into the processing chamber 101, allowing maintenance personnel to directly replace and repair the cathode wire 700 on the support plate 300. This not only helps to improve the convenience of cathode wire 700 repair and replacement and improve maintenance efficiency, but also eliminates the need for maintenance personnel to enter the processing chamber 101 for repair, reducing the exposure of maintenance personnel to dangerous environments and improving safety.

[0030] like Figures 1 to 3 As shown, the flue gas treatment device 10 also includes an insulation box 800, which is installed on the top surface of the support plate 300. An external power supply is connected to the current guide 500 via the insulation box 800, thereby transmitting current through the insulation box 800 to the current guide 500. It should be noted that the structure and function of the insulation box 800 are well known to those skilled in the art and will not be described in detail here. This design places it on the support plate 300, which also facilitates maintenance and replacement.

[0031] like Figures 1 to 6 As shown, in one embodiment, the protective housing 400 includes a body 410 and a top cover 420. The top cover 420 is disposed at the top end of the body 410 and detachably connected to the body 410. Specifically, the body 410 forms the tubular portion of the protective housing 400. The top cover 420 forms the top wall of the protective housing 400. By removing the top cover 420 from the body 410, the internal space of the protective housing 400 can be observed from the top, and the cathode wire 700 can then be directly pulled out from the top of the protective housing 400, facilitating the replacement and maintenance of the cathode wire 700.

[0032] like Figures 1 to 6As shown, the tube body 410 includes a first tube segment 411 and a second tube segment 412. The first tube segment 411 is disposed on top of the second tube segment 412 and is located above the support plate 300. The inner diameter of the first tube segment 411 is larger than the inner diameter of the second tube segment 412. That is, the lateral dimension of the internal space of the first tube segment 411 is larger than the lateral dimension of the top space of the second tube segment 412. This makes the top space of the protective tube shell 400 larger, making it easier to operate the cathode wire 700 inside from the top. The second tube segment 412, which is used to contact the support plate 300 and the cover 200, has a smaller diameter, which facilitates the connection between the protective tube shell 400 and the support plate 300 and the cover 200.

[0033] It should be noted that the first pipe segment 411 and the second pipe segment 412 can be integrally formed or detachably connected. In the case where the first pipe segment 411 and the second pipe segment 412 are detachably connected, a part of the second pipe segment 412 can be integrally formed with the first pipe segment 411, and the other part can be formed separately. Then, the first pipe segment 411 and the second pipe segment 412 are detachably connected through the two parts of the second pipe segment 412.

[0034] like Figures 1 to 6 As shown, in one embodiment, a fixing disk 430 is disposed inside the protective casing 400. The fixing disk 430 is fixedly connected to the inner wall of the protective casing 400, and the fixing disk 430 is provided with a through hole. The cathode wire 700 passes through the through hole on the fixing disk 430 and is thus clamped by the fixing disk 430. Specifically, the fixing disk 430 is a disc, horizontally disposed inside the protective casing 400. An additional connecting structure, such as a connecting rod (not shown in the figure), is provided between the fixing disk 430 and the inner wall of the protective casing 400 to realize the connection between the fixing disk 430 and the protective casing 400. The cathode wire 700 passes through the through hole on the fixing disk 430 and is thus clamped by the through hole on the fixing disk 430. The fixing disk 430 can improve the stability of the cathode wire 700, reduce the swaying of the cathode wire 700 under airflow disturbance, and thus improve the safety of the cathode wire 700.

[0035] It should be noted that in some other embodiments, the outer edge of the fixing disk may be directly fixedly connected to the inner wall of the protective tube shell.

[0036] like Figures 1 to 6 As shown, in one embodiment, a pressure relief hole 401 is provided on the side wall of the protective shell 400. That is, the internal space of the protective shell 400 is connected to the external space through the pressure relief hole 401, thereby preventing excessive air pressure in the internal space of the protective shell 400 from damaging the cathode wire 700 and the protective shell 400.

[0037] like Figures 1 to 3As shown, multiple anode plates 600 are distributed along the axis of the flue gas outlet 103 with their largest surfaces facing each other. This arrangement allows the largest surfaces of the anode plates 600 to face the flue gas flowing towards the flue gas outlet 103, thereby better adsorbing droplets and dust in the flue gas and improving the demisting and dust removal effect.

[0038] like Figures 1 to 3 As shown, the flue gas treatment device 10 also includes a main cleaning pipe 110, which is disposed on the top of the support plate 300. It also includes multiple cleaning branch pipes 120, each extending longitudinally, with one end connected to the main cleaning pipe 110 and the other end extending into the treatment chamber 101, thereby spraying cleaning fluid onto the anode plate 600. In other words, the main cleaning pipe 110 and the cleaning branch pipes 120 can clean the anode plate 600, thereby removing impurities adsorbed on the anode plate 600 in a timely manner, preventing long-term accumulation of impurities that could weaken the adsorption effect. This also extends the service life of the anode plate 600.

[0039] like Figure 1 and Figure 7 As shown, in one embodiment, a cooling section 130 is provided on the side of the main body 100 of the equipment. The cooling section 130 and the side of the main body 100 of the equipment together form a cooling space 104 that is open at the top and bottom. A fan 140 is provided in the cooling space 104. The fan 140 is used to drive airflow to circulate through the cooling space 104 in order to cool the processing chamber 101.

[0040] Reference Figure 1 and Figure 7 As shown, specifically, the cooling section 130 is a groove-shaped plate structure, specifically a square cylindrical structure with open top and bottom, with one side wall removed. The side of the cooling section 130 without the side wall is fixedly connected to the outer surface of the equipment body 100, thereby forming a top-and-bottom open cooling space 104 on the side of the equipment body 100. A fan 140 is installed inside the cooling space 104. When the fan 140 is turned on, it drives airflow to circulate through the cooling space 104, thereby carrying away the heat transferred to the cooling space 104 via the side wall of the equipment body 100, and thus cooling the processing chamber 101 inside the equipment body 100.

[0041] Because the chemical reaction between the flue gas and the reaction slurry in the treatment chamber 101 is an exothermic reaction, cooling the treatment chamber 101 can promote the reaction to proceed in the forward direction, thereby making the reaction between the flue gas and the reaction slurry more complete.

[0042] like Figure 1 and Figure 7As shown, a spray device 150 is also provided in the cooling space 104 for spraying liquid onto the outer wall of the main body 100 of the equipment, thereby helping to improve the heat dissipation effect. The spray device 150 can be a spray head or other similar device. A recovery tank 105 is provided at the bottom of the cooling space 104 to receive and recover the liquid sprayed by the spray device 150.

[0043] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A flue gas treatment device, characterized in that, include: The main body of the equipment has an internal treatment chamber for flue gas treatment. A cover is provided on top of the main body of the equipment, the space enclosed by the cover is connected to the processing chamber, and the cover has a transverse flue gas outlet. A support plate is provided on top of the housing; Multiple protective tube shells pass longitudinally through the supporting plate, and their bottom ends communicate with the processing chamber via the cover. Multiple cathode wires, each of which is disposed within a protective casing, extend into the processing chamber to discharge into the processing chamber; A current guide is disposed on the top of the support plate and connected to the plurality of cathode wires respectively to transmit current to the plurality of cathode wires; and Multiple anode plates are disposed at the top of the processing chamber to adsorb droplets or dust charged by the discharge of the cathode wire.

2. The flue gas treatment device according to claim 1, characterized in that, The protective casing includes a tube body and a top cover, wherein the top cover is disposed at the top of the tube body and is detachably connected to the tube body.

3. The flue gas treatment device according to claim 2, characterized in that, The pipe body includes a first pipe section and a second pipe section. The first pipe section is disposed on top of the second pipe section and is located above the supporting plate. The inner diameter of the first pipe section is larger than the inner diameter of the second pipe section.

4. The flue gas treatment device according to claim 1, characterized in that, The protective tube shell has a fixing plate inside, which is fixedly connected to the inner wall of the protective tube shell. The fixing plate has a through hole through which the cathode wire passes and is clamped by the fixing plate.

5. The flue gas treatment device according to claim 1, characterized in that, The protective casing is provided with a pressure relief hole on its side wall.

6. The flue gas treatment device according to claim 1, characterized in that, The plurality of anode plates are distributed along the extension direction of the axis of the flue gas outlet in such a manner that the plates with the largest areas face each other.

7. The flue gas treatment device according to claim 1, characterized in that, Also includes: The main cleaning pipe is located on top of the supporting plate; as well as Multiple cleaning branch pipes are provided, each extending longitudinally, with one end connected to the main cleaning pipe and the other end extending into the processing chamber, thereby spraying cleaning fluid onto the anode plate.

8. The flue gas treatment device according to claim 1, characterized in that, A cooling section is provided on the side of the main body of the equipment, and the cooling section and the side of the main body of the equipment together form a cooling space that is open at the top and bottom. A fan is installed in the cooling space to drive airflow through the cooling space to cool the processing room.

9. The flue gas treatment device according to claim 8, characterized in that, The cooling space is also equipped with a spray device for spraying liquid onto the outer wall of the main body of the equipment.

10. The flue gas treatment apparatus according to claim 9, characterized in that, A recovery tank is provided at the bottom of the cooling space to receive the liquid sprayed by the spraying device for recycling.

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