Biomass incineration waste gas treatment device

Abstract

The utility model provides a biomass incineration waste gas treatment device which comprises a treatment tower, a gas inlet, a gas outlet and a gas outlet, a treatment space is formed in the treatment tower, and the gas inlet is communicated with the treatment space and used for receiving waste gas to be treated; the spraying device is arranged in the treatment space and is arranged at a position higher than the air inlet; the flow guide plate is arranged in the treatment space and located between the air inlet and the spraying device, a plurality of through holes are formed in the flow guide plate, and the flow guide plate is provided with a protrusion facing the side where the air inlet is located. When waste gas enters the treatment space from the gas inlet and flows upwards, the waste gas can meet the protrusions on the guide plate and is dispersed by the protrusions on the guide plate, so that the waste gas is more sufficiently diffused along the guide plate, the contact area between the waste gas and a washing solution sprayed by the spraying device is increased, and the waste gas treatment efficiency is improved. And the water washing treatment effect of the waste gas can be improved.

Description

Technical Field

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

[0002] Biomass boilers are a type of boiler that uses biomass, such as straw and wood, as fuel. The exhaust gas produced by burning biomass cannot be directly released into the atmosphere; it requires a series of purification treatments before being released. Carbon capture is one such method. However, the exhaust gas from burning biomass contains elements such as sodium, potassium, and chlorine. These excess elements must first be removed through a water washing process before carbon capture treatment to prevent them from negatively impacting the process. Therefore, the effectiveness of the water washing treatment is a crucial factor affecting the overall effectiveness of carbon capture treatment. Utility Model Content

[0003] One objective of this invention is to provide a biomass incineration waste treatment device that can help improve the water washing treatment effect of biomass incineration waste.

[0004] Specifically, this utility model provides a biomass incineration waste gas treatment device, comprising:

[0005] The treatment tower has an internal treatment space and an air inlet on its side wall that communicates with the treatment space. The air inlet is used to receive the waste gas to be treated.

[0006] A spraying device is installed within the processing space and positioned above the air inlet; and

[0007] A guide plate is disposed within the processing space and located between the air inlet and the spray device. The guide plate has multiple through holes and a protrusion facing the side where the air inlet is located.

[0008] Optionally, the guide vane is inclined along the air intake direction of the air inlet.

[0009] Optionally, the deflector plate is inclined from top to bottom in the direction of air intake from the air inlet.

[0010] Optionally, the guide plate has a first inclined section and a second inclined section, the first inclined section and the second inclined section are connected along the air intake direction of the air intake, the first inclined section is located at the end of the second inclined section near the air intake, and the inclination of the first inclined section relative to the horizontal plane is greater than the inclination of the second inclined section relative to the horizontal plane, thereby forming a protrusion facing the side of the air intake at the position where the first inclined section and the second inclined section are connected.

[0011] Optionally, the length of the projection of the first inclined segment on the horizontal plane in the air intake direction of the air inlet is less than the length of the projection of the second inclined segment on the horizontal plane in the air intake direction of the air inlet.

[0012] Optionally, the junction of the first inclined segment and the second inclined segment is lower than the center position of the air inlet.

[0013] Optionally, the side of the guide plate near the air inlet has a contact position with the inner wall of the processing space that is higher than the highest position of the air inlet, and the side of the guide plate away from the air inlet has a contact position with the inner wall of the processing space that is lower than or flush with the center position of the air inlet.

[0014] Optionally, the through holes of the guide plate are strip-shaped, and a plurality of the through holes are arranged side by side along the inclined direction of the guide plate.

[0015] Optionally, the waste gas treatment device further includes a recovery tank, which is located at the bottom of the treatment tower and communicates with the treatment space, and is positioned below the air inlet. The recovery tank is used to receive liquid that falls after being sprayed by the spraying device.

[0016] Optionally, the waste gas treatment device further includes a liquid transfer pump, which is disposed between the recovery tank and the spray device, for transporting liquid in the recovery tank to the spray device.

[0017] This utility model discloses a biomass incineration waste treatment device. A guide plate is installed within the treatment space, positioned between the air inlet and the spraying device. The guide plate has multiple through holes and protrusions facing the air inlet. Therefore, when waste gas enters the treatment space from the air inlet and flows upwards, it encounters the protrusions on the guide plate and is dispersed, allowing for more thorough diffusion along the guide plate. This increases the contact area between the waste gas and the washing solution sprayed by the spraying device, thereby improving the washing effect and preventing adverse effects on subsequent carbon capture treatment.

[0018] Furthermore, the biomass incineration waste treatment device of this invention, by tilting the guide plate in the treatment space along the air inlet direction, allows the washing solution sprayed by the spraying device to flow along the tilt direction of the guide plate after falling on it. This ensures that the washing solution is fully diffused on the top surface of the guide plate. When the waste gas, after being diffused by the guide plate, flows through the through holes of the guide plate to the top of the guide plate, it can contact the washing solution diffused on the top surface of the guide plate, thereby further increasing the contact area between the washing solution and the waste gas and further improving the washing treatment effect of the waste gas. In addition, by setting the guide plate to be tilted from top to bottom along the air inlet direction, while the waste gas is diffused by the guide plate, some of the waste gas will flow downward along the tilt direction of the guide plate, thereby extending the flow time of the waste gas in the washing area and allowing the waste gas to contact the washing solution more fully, thus improving the washing treatment effect.

[0019] 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

[0020] 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:

[0021] Figure 1 This is a schematic cross-sectional view of a biomass incineration waste gas treatment device according to an embodiment of the present invention;

[0022] Figure 2 This is a partial schematic cross-sectional view of a biomass incineration waste gas treatment device according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic cross-sectional view of the guide plate in a biomass incineration waste gas treatment device according to an embodiment of the present utility model.

[0024] Figure 4 This is a schematic cross-sectional view of a biomass incineration waste gas treatment device according to another embodiment of the present invention. Detailed Implementation

[0025] 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.

[0026] In the description of this embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "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.

[0027] 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can also 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 according to the specific circumstances.

[0028] like Figures 1 to 3 As shown, in one embodiment, the biomass incineration waste gas treatment device 10 includes a treatment tower 100, a spray device 200, and a guide plate 300. The treatment tower 100 has a treatment space 101 inside, and an air inlet 102 communicating with the treatment space 101 is formed on its side wall. The air inlet 102 is used to receive the waste gas to be treated. The spray device 200 is disposed within the treatment space 101 and is positioned above the air inlet 102. The guide plate 300 is disposed within the treatment space 101 and located between the air inlet 102 and the spray device 200. The guide plate 300 has multiple through holes 301 and a protrusion facing the side where the air inlet 102 is located.

[0029] like Figures 1 to 3As shown, specifically, the treatment tower 100 has a cuboid or cylindrical structure, forming a longitudinally extending treatment space 101 inside. An air inlet 102 communicating with the treatment space 101 is formed on the side wall of the treatment tower 100, and the air inlet 102 is located near the bottom of the treatment tower 100. The treatment tower 100 also has an air outlet communicating with the treatment space 101, located near the top of the treatment tower 100. The exhaust gas generated from burning biomass is transported into the treatment space 101 through the air inlet 102, and then flows from the bottom to the top of the treatment tower 100 within the treatment space 101.

[0030] Reference Figures 1 to 3 As shown, the spray device 200 is positioned within the treatment space 101 above the air inlet 102. The spray device 200 sprays a washing solution onto the waste gas within the treatment space 101. When the falling washing solution encounters the waste gas rising from the air inlet 102, it adsorbs elements such as sodium, potassium, and chlorine from the waste gas. Additionally, a guide plate 300 covers the treatment space 101 vertically. The guide plate 300 is positioned between the air inlet 102 and the spray device 200, and has a protrusion facing the side of the air inlet 102. Therefore, the waste gas entering from the air inlet 102 encounters the protrusion on the guide plate 300 during its ascent, and diffuses around the protrusion under its guidance, i.e., diffuses on the guide plate 300. This further disperses the waste gas, increases the contact area with the washing solution, and thus improves the washing effect of the waste gas. The exhaust gas can also flow through the through holes 301 on the guide plate 300 to the top of the guide plate 300, so as to continue subsequent treatment and finally flow out from the top of the treatment tower 100.

[0031] In this embodiment, a guide plate 300 is provided within the processing space 101 and positioned between the air inlet 102 and the spray device 200. The guide plate 300 has multiple through holes 301 and a protrusion facing the side of the air inlet 102. Therefore, when the exhaust gas enters the processing space 101 from the air inlet 102 and flows upward, it encounters the protrusion on the guide plate 300 and is dispersed by it. This allows the exhaust gas to diffuse more fully along the guide plate 300, increasing the contact area between the exhaust gas and the washing solution sprayed by the spray device 200. This, in turn, improves the washing effect of the exhaust gas and avoids adverse effects on subsequent carbon capture treatment.

[0032] like Figures 1 to 3 As shown, in one embodiment, the guide vane 300 is inclined along the air intake direction of the air inlet 102. Specifically, the guide vane 300 is inclined downwards from the air intake direction of the air inlet 102. (Refer to...) Figure 1As shown, the air inlet 102 is located on the left side of the treatment tower 100, and the air intake direction of the air inlet 102 is from left to right. Therefore, the guide plate 300 is inclined from left to right and from top to bottom, that is, inclined to the lower right. In this way, when the exhaust gas entering from the air inlet 102 is diffused by the guide plate 300, some of the exhaust gas will also flow to the lower right, thereby prolonging the time of the exhaust gas in the water washing area, so that the exhaust gas can come into more complete contact with the water washing solution and improve the water washing treatment effect.

[0033] In this embodiment, by tilting the guide plate 300 in the processing space 101 along the air intake direction of the air inlet 102, the washing solution sprayed by the spraying device 200 falls onto the guide plate 300 and flows along the tilt direction of the guide plate 300, thereby allowing the washing solution to fully diffuse on the top surface of the guide plate 300. When the exhaust gas diffused through the guide plate 300 flows from the through hole 301 of the guide plate 300 to the top of the guide plate 300, it can come into contact with the washing solution diffused on the top surface of the guide plate 300, thereby further increasing the contact area between the washing solution and the exhaust gas and further improving the washing treatment effect of the exhaust gas.

[0034] In addition, by setting the guide plate 300 to be inclined from top to bottom from the air intake direction of the air inlet 102, while the exhaust gas is diffused by the guide plate 300, some of the exhaust gas will flow downward along the inclined direction of the guide plate 300, thereby prolonging the flow time of the exhaust gas in the water washing area, so that the exhaust gas can come into more full contact with the water washing solution and improve the water washing treatment effect.

[0035] It should be noted that in some other embodiments, the deflector may also be tilted from bottom to top in the direction of air intake.

[0036] like Figures 1 to 3 As shown, in one embodiment, the deflector 300 has a first inclined section 310 and a second inclined section 320. The first inclined section 310 and the second inclined section 320 are connected along the air intake direction of the air intake 102. The first inclined section 310 is located at the end of the second inclined section 320 near the air intake 102. The inclination of the first inclined section 310 relative to the horizontal plane is greater than the inclination of the second inclined section 320 relative to the horizontal plane, thereby forming a protrusion facing the side where the air intake 102 is located at the position where the first inclined section 310 and the second inclined section 320 are connected.

[0037] Reference Figure 1As shown, both the first inclined section 310 and the second inclined section 320 are plate-like structures. The first inclined section 310 is located to the left of the second inclined section 320. The first inclined section 310 has a larger inclination relative to the horizontal plane, meaning a steeper slope, while the second inclined section 320 has a smaller inclination relative to the horizontal plane, meaning a gentler slope. The lower right side of the first inclined section 310 connects to the upper left side of the second inclined section 320. Because the inclinations of the first inclined section 310 and the second inclined section 320 are different, the surface of the guide vane 300 facing the air intake 102 is not a flat surface, but rather a surface that protrudes towards the air intake 102 at the junction of the first inclined section 310 and the second inclined section 320.

[0038] In this embodiment, the guide plate 300 is configured with a first inclined section 310 and a second inclined section 320 connected along the air intake direction of the air inlet 102. The inclination of the first inclined section 310 relative to the horizontal plane is greater than that of the second inclined section 320 relative to the horizontal plane. This creates a protrusion facing the side of the air inlet 102 at the junction of the first and second inclined sections 310 and 320. This results in two flat inclined surfaces on either side of the protrusion of the guide plate 300, allowing the diffused exhaust gas to flow more smoothly. In other words, the exhaust gas is more easily diffused by the protrusion of the guide plate 300, thereby improving the degree of diffusion of the exhaust gas by the guide plate 300 and thus improving the water washing treatment effect. Furthermore, the structure of the guide plate 300 with the protrusion formed by the connection of the plate-shaped first inclined section 310 and the second inclined section 320 is simpler.

[0039] It should be noted that in some other embodiments, the first inclined segment and the second inclined segment may also be smoothly connected with a smooth curved surface structure. Additionally, in some other embodiments, the raised side may not be smoothly connected to the remaining side of the guide vane.

[0040] like Figures 1 to 3 As shown, the length of the projection of the first inclined segment 310 onto the horizontal plane in the air intake direction of the air inlet 102 is less than the length of the projection of the second inclined segment 320 onto the horizontal plane in the air intake direction of the air inlet 102. (Refer to...) Figure 3 As shown, the length of the projection of the first inclined segment 310 on the horizontal plane in the air intake direction of the air intake 102 is d, and the length of the projection of the second inclined segment 320 on the horizontal plane in the air intake direction of the air intake 102 is D. That is to say, d is less than D.

[0041] In this embodiment, by making the length of the projection of the first inclined segment 310 on the horizontal plane in the air intake direction of the air inlet 102 less than the length of the projection of the second inclined segment 320 on the horizontal plane in the air intake direction of the air inlet 102, the protrusions of the first inclined segment 310 and the second inclined segment 320 that are connected and different are closer to the side where the air inlet 102 is located in the air intake direction, thereby helping to diffuse the exhaust gas in a timely manner and ensuring the diffusion effect of the exhaust gas.

[0042] like Figures 1 to 3 As shown, further, the junction of the first inclined section 310 and the second inclined section 320 is lower than the center of the air inlet 102. Specifically, the projection of the junction of the first inclined section 310 and the second inclined section 320 in the vertical plane is lower than the projection of the center of the air inlet 102 in the same vertical plane. In other words, the vertical projection of the first inclined section 310 in the vertical plane is longer than the vertical projection of the second inclined section 320 in the vertical plane. Because the horizontal projection of the first inclined section 310 in the horizontal plane is shorter than the horizontal projection of the second inclined section 320 in the horizontal plane, the vertical projection of the first inclined section 310 in the vertical plane is longer than the vertical projection of the second inclined section 320 in the vertical plane, ensuring good diffusion of exhaust gas in both directions.

[0043] like Figures 1 to 3 As shown, the contact position between the side of the guide vane 300 near the air inlet 102 and the inner wall of the processing space 101 is higher than the highest point of the air inlet 102, while the contact position between the side of the guide vane 300 away from the air inlet 102 and the inner wall of the processing space 101 is lower than or flush with the center position of the air inlet 102. This ensures that the guide vane 300 covers the entire area of ​​the air inlet 102 along its axial direction, allowing all exhaust gas entering the processing space 101 from the air inlet 102 to encounter the guide vane 300, thus providing a better diffusion effect for the exhaust gas.

[0044] like Figures 1 to 3 As shown, the through holes 301 of the guide plate 300 are strip-shaped, and multiple through holes 301 are arranged side by side along the inclined direction of the guide plate 300. That is to say, the guide plate 300 has a grid-like structure. In this way, the exhaust gas can more easily flow through the through holes 301 to the top of the guide plate 300 during the diffusion process along the inclined direction of the guide plate 300, making the exhaust gas flow more smoothly.

[0045] like Figures 1 to 3As shown, the waste gas treatment device 10 also includes a recovery tank 400. The recovery tank 400 is located at the bottom of the treatment tower 100 and communicates with the treatment space 101, and is positioned below the air inlet 102. The recovery tank 400 is used to receive the liquid that falls after being sprayed by the spray device 200. Specifically, the recovery tank 400 receives the washing solution that has come into contact with the waste gas. By using the recovery tank 400 to receive the liquid that falls after being sprayed by the spray device 200, the elements absorbed by the washing solution can be recovered and reused, thereby improving energy utilization efficiency.

[0046] like Figure 4 As shown, in one embodiment, the waste gas treatment device 10 further includes a liquid transfer pump 500, which is disposed between the recovery tank 400 and the spray device 200, for transporting liquid in the recovery tank 400 to the spray device 200. Specifically, the liquid transfer pump 500 is connected to the spray device 200 and the recovery tank 400 respectively through pipelines, thereby transporting the liquid in the recovery tank 400 to the spray device 200, which sprays it into the treatment space 101, where it comes into contact with the waste gas entering the treatment space 101 from the air inlet 102 and then falls back into the recovery tank 400, thereby allowing the washing solution to be reused multiple times and improving the utilization rate of the washing solution.

[0047] 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 biomass incineration waste gas treatment device, characterized in that, include: The treatment tower has an internal treatment space and an air inlet on its side wall that communicates with the treatment space. The air inlet is used to receive the waste gas to be treated. A spraying device is installed within the processing space and positioned above the air inlet; and A guide plate is disposed within the processing space and located between the air inlet and the spray device. The guide plate has multiple through holes and a protrusion facing the side where the air inlet is located.

2. The biomass incineration waste gas treatment device according to claim 1, characterized in that, The air guide plate is inclined along the air intake direction of the air inlet.

3. The biomass incineration waste gas treatment device according to claim 2, characterized in that, The air guide plate is inclined from top to bottom according to the air intake direction of the air inlet.

4. The biomass incineration waste gas treatment device according to claim 3, characterized in that, The guide plate has a first inclined section and a second inclined section, which are connected along the air intake direction of the air inlet. The first inclined section is located at the end of the second inclined section that is closer to the air inlet. The inclination of the first inclined section relative to the horizontal plane is greater than that of the second inclined section relative to the horizontal plane, thereby forming a protrusion facing the side where the air inlet is located at the position where the first inclined section and the second inclined section are connected.

5. The biomass incineration waste gas treatment device according to claim 4, characterized in that, The length of the projection of the first inclined segment on the horizontal plane in the air intake direction of the air inlet is less than the length of the projection of the second inclined segment on the horizontal plane in the air intake direction of the air inlet.

6. The biomass incineration waste gas treatment device according to claim 4, characterized in that, The junction of the first inclined section and the second inclined section is lower than the center of the air inlet.

7. The biomass incineration waste gas treatment device according to claim 2, characterized in that, The side of the guide plate closest to the air inlet contacts the inner wall of the processing space at a position higher than the highest point of the air inlet, while the side of the guide plate furthest from the air inlet contacts the inner wall of the processing space at a position lower than or flush with the center of the air inlet.

8. The biomass incineration waste gas treatment device according to claim 2, characterized in that, The through holes of the guide plate are strip-shaped, and multiple through holes are arranged side by side along the inclined direction of the guide plate.

9. The biomass incineration waste gas treatment device according to claim 1, characterized in that, The waste gas treatment device also includes a recovery tank, which is located at the bottom of the treatment tower and communicates with the treatment space, and is positioned below the air inlet. The recovery tank is used to receive the liquid that falls after being sprayed by the spraying device.

10. The biomass incineration waste gas treatment device according to claim 9, characterized in that, The waste gas treatment device also includes a liquid transfer pump, which is located between the recovery tank and the spray device, and is used to transport the liquid in the recovery tank to the spray device.

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