Flue gas treatment device

Abstract

The utility model provides a flue gas treatment device. The flue gas treatment device comprises a shell, a reaction space is formed in the shell, a gas inlet communicated with the reaction space is formed in the bottom of the side face of the shell, and a gas outlet communicated with the reaction space is formed in the top face of the shell; the adapter sleeve is in a barrel shape with two open ends, and the open end of the adapter sleeve is in butt joint with the air inlet; the descaling liquid conveying pipe is arranged on the outer side of the adapter sleeve; the descaling spraying assembly is arranged on the inner side of one longitudinal side wall of the transfer sleeve and comprises a plurality of descaling liquid spraying heads, the descaling liquid spraying heads are distributed in the longitudinal direction and face the air inlet, and the descaling liquid spraying heads communicate with a descaling liquid conveying pipe through a pipeline penetrating through the transfer sleeve; therefore, the descaling liquid is sprayed into the reaction space through the air inlet so as to carry out multi-directional spraying on a partial area, close to the air inlet, in the reaction space, so that the scaling speed in the reaction space is slowed down.

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] Large quantities of flue gas generated by factories need to be treated and purified before being discharged. Currently, gas-liquid reaction technology is commonly used for flue gas treatment. In this process, the flue gas to be treated is transported to a reaction chamber, where a slurry is released into the chamber via spray nozzles on a slurry delivery pipe. The slurry reacts with the flue gas, removing harmful substances and thus treating the gas. However, during this process, scaling occurs on the inner walls and internal components of the reaction chamber, negatively impacting the treatment equipment. The inlet area at the bottom of the equipment, in particular, is prone to scaling due to the higher temperature of the flue gas initially entering the reaction chamber. Utility Model Content

[0003] One objective of this invention is to provide a flue gas treatment device that can help reduce the scaling rate in the bottom air inlet area of ​​the flue gas treatment device.

[0004] Specifically, this utility model provides a flue gas treatment device, comprising:

[0005] The outer shell has a reaction space, and an air inlet communicating with the reaction space is formed on the bottom side of the outer shell, and an air outlet communicating with the reaction space is formed on the top surface of the outer shell.

[0006] The adapter sleeve is a cylindrical shape with openings at both ends, and one of the open ends is connected to the air inlet.

[0007] A descaling fluid delivery pipe is located on the outside of the adapter sleeve; and

[0008] A descaling spray assembly is disposed on the inner side of one of the longitudinal side walls of the adapter sleeve, and includes multiple descaling liquid spray heads. The multiple descaling liquid spray heads are distributed longitudinally and arranged toward the air inlet. The multiple descaling liquid spray heads are connected to the descaling liquid delivery pipe through a pipe passing through the adapter sleeve, thereby spraying descaling liquid into the reaction space through the air inlet.

[0009] Optionally, the uppermost descaling spray head in the descaling spray assembly is inclined from low to high along the air intake direction of the air inlet, and the lowermost descaling spray head is inclined from high to low along the air intake direction of the air inlet.

[0010] Optionally, the acute angle formed between the axis of the uppermost descaling spray head in the descaling spray assembly and the horizontal plane is set to 10–30 degrees; and / or,

[0011] The acute angle between the axis of the lowest descaling spray head in the descaling spray assembly and the horizontal plane is set to 10 to 30 degrees.

[0012] Optionally, the distance between the highest point of the uppermost descaling spray head in the descaling spray assembly and the inner top wall of the adapter sleeve is set to 10–50 cm; and / or,

[0013] The distance between the lowest point of the lowest descaling spray head in the descaling spray assembly and the inner bottom wall of the adapter sleeve is set to 5-30 cm.

[0014] Optionally, the flue gas treatment device further includes:

[0015] A slurry delivery pipe is disposed within the reaction space and is lower than the highest point of the air inlet. The slurry delivery pipe extends from the side of the outer shell opposite to the air inlet to the side where the air inlet is located. The slurry delivery pipe is equipped with a slurry spray head for spraying reaction slurry into the reaction space.

[0016] Optionally, the flue gas treatment device further includes:

[0017] Filtering device, including:

[0018] The container body includes a filtration chamber, an inlet, and an outlet communicating with the filtration chamber. The inlet receives the raw reaction slurry, and the outlet connects to the slurry delivery pipe.

[0019] A filter screen is disposed within the filter chamber, thereby dividing the filter chamber into two parts, with the inlet and outlet located on opposite sides of the filter screen.

[0020] Optionally, the descaling liquid delivery pipe is provided with two vertical pipe sections, which are respectively located on the outer sides of the two longitudinal sidewalls of the adapter sleeve. The flue gas treatment equipment is provided with two descaling spray assemblies, and multiple descaling liquid spray heads in the two descaling spray assemblies are respectively connected to the two vertical pipe sections.

[0021] Optionally, the multiple descaling spray heads in the descaling spray assembly are all inclined in a direction away from the connected vertical pipe section along the air intake direction of the air inlet.

[0022] Optionally, the inner bottom wall of the adapter sleeve is inclined from high to low along the air intake direction of the air inlet, and the acute angle formed by the inner bottom wall of the adapter sleeve and the horizontal plane is set to 1 to 15 degrees.

[0023] Optionally, a sludge collection tank is provided on the bottom surface of the outer shell, and the bottom surface of the outer shell slopes from high to low from the periphery of the sludge collection tank towards the location of the sludge collection tank.

[0024] The flue gas treatment device of this utility model utilizes an adapter sleeve connected to the air inlet. A descaling liquid delivery pipe is installed on the outside of the adapter sleeve, and a descaling spray assembly is installed on the inside of the adapter sleeve. Multiple descaling liquid spray heads in the descaling spray assembly are connected to the descaling liquid delivery pipe through a pipe passing through the adapter sleeve. Thus, the descaling liquid is delivered to the descaling liquid spray heads through the descaling liquid delivery pipe, and the descaling liquid is sprayed into the reaction space through the descaling liquid spray heads. Because the multiple descaling liquid spray heads in the descaling spray assembly are distributed longitudinally, it can not only form multi-directional spraying, but also descale the part of the reaction space near the air inlet. Furthermore, the descaling solution sprayed by multiple descaling spray nozzles can effectively cover the internal space of the transfer sleeve, thereby reducing the temperature of the flue gas entering the reaction space from the transfer sleeve. This weakens the promoting effect of high-temperature flue gas on scaling, thus slowing down the scaling rate in the reaction space, especially slowing down the scaling rate in the air intake area near the air inlet at the bottom of the flue gas treatment device. This reduces the adverse effects of scaling on the flue gas treatment device and facilitates subsequent cleaning.

[0025] 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

[0026] 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:

[0027] Figure 1 This is a schematic diagram of a flue gas treatment device according to an embodiment of the present invention;

[0028] Figure 2 This is a first schematic cross-sectional view of a flue gas treatment device according to an embodiment of the present invention;

[0029] Figure 3 This is a second schematic cross-sectional view of a flue gas treatment device according to an embodiment of the present invention;

[0030] Figure 4 This is a partial schematic diagram of a flue gas treatment device according to an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of a filter device and a slurry conveying pipe in a flue gas treatment device according to an embodiment of the present invention;

[0032] Figure 6This is a schematic cross-sectional view of a filter device in a flue gas treatment apparatus according to an embodiment of the present invention. Detailed Implementation

[0033] 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.

[0034] 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.

[0035] 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.

[0036] like Figures 1 to 3As shown, in one embodiment, the flue gas treatment device 10 includes a housing 100, a connecting sleeve 200, a descaling liquid delivery pipe 300, and two descaling spray assemblies 400. The housing 100 forms a reaction space 101, and an air inlet 102 communicating with the reaction space 101 is formed on the bottom side of the housing 100. An air outlet 103 communicating with the reaction space 101 is formed on the top surface of the housing 100. The connecting sleeve 200 is a cylindrical shape with openings at both ends, and one of the open ends is connected to the air inlet 102. The descaling liquid delivery pipe 300 is disposed on the outer side of the connecting sleeve 200. The descaling spray assembly 400 is disposed on the inner side of one of the longitudinal sidewalls of the connecting sleeve 200. The descaling spray assembly 400 includes multiple descaling liquid spray heads 410, which are longitudinally distributed and positioned towards the air inlet 102. The multiple descaling liquid spray heads 410 are connected to the descaling liquid delivery pipe 300 via a pipe passing through the adapter sleeve 200, thereby spraying descaling liquid into the reaction space 101 through the air inlet 102. The descaling liquid can be clean water, a solution mixed with a descaling agent, etc.

[0037] like Figures 1 to 3 As shown, specifically, the outer shell 100 can be divided into a main shell portion 110, a top shell portion 120, and a bottom plate 130. The main shell portion 110 is cylindrical in shape, open at both the top and bottom. An air inlet 102 is located on one side wall of the main shell portion 110, at the bottom of that side wall. The top shell portion 120 is also open at both the top and bottom, located at the top of the main shell portion 110, thus connecting with the internal space of the main shell portion 110. The top opening of the top shell portion 120 is the air outlet 103. The bottom plate 130 is located at the bottom opening of the main shell portion 110, thus closing the bottom of the main shell portion 110.

[0038] It should be noted that the outer shell 100 is divided into the main shell 110, the top shell 120 and the bottom plate 130 for the purpose of explaining the scheme of this embodiment. The main shell 110, the top shell 120 and the bottom plate 130 can be formed separately or integrally.

[0039] refer to Figures 1 to 3 As shown, for ease of explanation, the side wall where the air inlet 102 is located is defined as the front side wall, and the side wall opposite it is defined as the rear side wall. That is, the air intake direction along the air inlet 102 is the front-rear direction of the equipment, and the lateral direction perpendicular to the air intake direction is the left-right direction of the equipment.

[0040] like Figures 1 to 3As shown, the adapter sleeve 200 is a square tube with openings at both ends. One end with an opening is connected to the outer shell 100 at the air inlet 102, and the other end with an opening is used to connect to an external pipe to receive the flue gas to be treated, so that the flue gas to be treated can flow through the area enclosed by the adapter sleeve 200 to the air inlet 102, and then flow into the reaction space 101 from the air inlet 102.

[0041] like Figures 1 to 4 As shown, the descaling fluid delivery pipe 300 includes a horizontal pipe section extending laterally and two vertical pipe sections extending longitudinally. The horizontal pipe section is located at the top of the transition sleeve 200 and extends from one side of the transition sleeve 200 to the other side in the left-right direction of the flue gas treatment device 10. The two vertical pipe sections are located on the outer sides of the two longitudinal side walls of the transition sleeve 200, that is, on the outer sides of the left and right side walls of the transition sleeve 200, respectively, and are both connected to the horizontal pipe section.

[0042] Reference Figures 1 to 4 As shown, multiple descaling liquid spray heads 410 in the two descaling spray assemblies 400 are respectively connected to two vertical pipe sections. Specifically, the two descaling spray assemblies 400 are respectively arranged near the left and right side walls of the adapter sleeve 200. The multiple descaling liquid spray heads 410 in the descaling spray assembly 400 near the left side wall of the adapter sleeve 200 are connected to the vertical pipe section outside the left side wall of the adapter sleeve 200 via a pipe passing through the left side wall of the adapter sleeve 200. The multiple descaling liquid spray heads 410 in the descaling spray assembly 400 near the right side wall of the adapter sleeve 200 are connected to the vertical pipe section outside the right side wall of the adapter sleeve 200 via a pipe passing through the right side wall of the adapter sleeve 200. Therefore, the multiple descaling spray heads 410 in the two descaling spray assemblies 400 can receive descaling liquid from the descaling liquid delivery pipe 300 and spray the descaling liquid toward the air inlet 102, thereby spraying it into the reaction space 101.

[0043] In this embodiment, the adapter sleeve 200 is connected to the air inlet 102. A descaling liquid delivery pipe 300 is provided on the outside of the adapter sleeve 200, and a descaling spray assembly 400 is provided on the inside of the adapter sleeve 200. Multiple descaling liquid spray heads 410 in the descaling spray assembly 400 are connected to the descaling liquid delivery pipe 300 through a pipe passing through the adapter sleeve 200. Descaling liquid is delivered to the descaling liquid spray heads 410 through the descaling liquid delivery pipe 300, and descaling liquid is sprayed into the reaction space 102 through the descaling liquid spray heads 410. Because the multiple descaling liquid spray heads 410 in the descaling spray assembly 400 are distributed longitudinally, they can not only form multi-directional spraying, but also descal the part of the reaction space 101 near the air inlet 102. Furthermore, the descaling liquid sprayed by the multiple descaling liquid spray heads 410 can effectively cover the internal space of the adapter sleeve 200, thereby reducing the temperature of the flue gas entering the reaction space 101 from the adapter sleeve 200. This weakens the promoting effect of high-temperature flue gas on scaling, thus slowing down the scaling rate in the reaction space 101, especially slowing down the scaling rate in the part of the air intake area near the air inlet 102 at the bottom of the flue gas treatment device 10. This reduces the adverse effects of scaling on the flue gas treatment device 10 and facilitates subsequent cleaning.

[0044] In addition, by providing two vertical pipe sections in the descaling liquid delivery pipe 300 and setting two descaling spray components 400, and by connecting multiple descaling liquid spray heads 410 in the two descaling spray components 400 to the two vertical pipe sections respectively, the amount of descaling liquid sprayed is increased, thereby enhancing the descaling effect.

[0045] It should be noted that in some other embodiments, the descaling liquid delivery pipe may only have one vertical pipe section and one descaling spray assembly. The vertical pipe section is located outside one of the longitudinal side walls of the adapter sleeve, and multiple descaling liquid spray heads in the descaling spray assembly are connected to the vertical pipe section via pipes passing through the longitudinal side wall of the adapter sleeve.

[0046] like Figures 1 to 5 As shown, the flue gas treatment device 10 also includes two slurry conveying pipes 500. The slurry conveying pipes 500 are located inside the reaction space 101 and are lower than the highest point of the air inlet 102. The slurry conveying pipes 500 extend from the side of the outer shell 100 opposite to the air inlet 102 to the side where the air inlet 102 is located. The slurry conveying pipes 500 are equipped with slurry spray heads (not marked in the figure) for spraying reaction slurry into the reaction space 101.

[0047] like Figures 1 to 5As shown, two slurry delivery pipes 500 are distributed along the left-right direction of the equipment within the reaction space 101. Both the slurry delivery pipes 500 and the slurry spray heads on them are lower than the highest point of the air inlet 102. That is, on the same vertical plane, the highest point of the projection of the slurry delivery pipe 500 is lower than the highest point of the projection of the air inlet 102. Alternatively, the slurry delivery pipes 500 are positioned at the bottom of the reaction space 101, directly opposite the air inlet 102 along the front-rear direction of the equipment. Furthermore, the slurry delivery pipes 500 extend from the rear to the front of the equipment. Specifically, the slurry delivery pipes 500 pass through the rear sidewall of the equipment and extend into the reaction space 101, extending from the rear sidewall to the front sidewall, i.e., towards the air inlet 102.

[0048] By setting a slurry delivery pipe 500 lower than the air inlet 102 within the reaction space 101, and making the slurry delivery pipe 500 extend from the side of the outer shell 100 opposite to the air inlet 102 towards the side where the air inlet 102 is located, the slurry delivery pipe 500 is positioned in the portion of the bottom of the reaction space 101 directly opposite the air inlet 102 along the front-to-back direction of the equipment. When flue gas enters the reaction space 101 through the air inlet 102, at the bottom of the reaction space 101, the flue gas will flow approximately along the axial direction of the lowest slurry delivery pipe 500 through the area where the slurry delivery pipe 500 is located, thereby reacting with the reaction slurry sprayed by multiple slurry spray heads distributed along the extension direction of the slurry delivery pipe 500. Therefore, this solution takes into account the characteristics of flue gas density and easy deposition, and makes full use of the lateral flow properties of flue gas. In conjunction with the slurry delivery pipe 500 set in the bottom area directly opposite the air inlet 102, the reaction effect of the reaction slurry and flue gas in the bottom area of ​​the equipment is improved. This allows the equipment to have a better flue gas treatment effect by expanding the reaction space 101 laterally, while helping to reduce the height of the equipment and thus improve the stability of the equipment.

[0049] Furthermore, because the descaling spray assembly 400 is provided, even if the slurry delivery pipe 500 is located in the space directly opposite the air inlet 102, the descaling liquid sprayed by the descaling liquid spray head 410 can be used to descale the slurry delivery pipe 500, reducing the scaling phenomenon in the part of the slurry delivery pipe 500 near the air inlet 102, and avoiding the problem of severe scaling and blockage caused by the slurry delivery pipe 500 being too close to the air inlet 102.

[0050] It should be noted that, in addition to the slurry conveying pipe below the air inlet, the flue gas treatment device may also be equipped with multiple sets of slurry conveying pipes that are above the air inlet and distributed longitudinally.

[0051] like Figures 1 to 4As shown, the multiple descaling spray heads 410 in the descaling spray assembly 400 are all inclined away from the connected vertical pipe section along the air intake direction of the air inlet 102. Taking the multiple descaling spray heads 410 in the descaling spray assembly 400 near the left side wall of the adapter sleeve 200 as an example, that is, the descaling spray heads 410 are inclined to the right along the air intake direction of the air inlet 102. Taking the multiple descaling spray heads 410 in the descaling spray assembly 400 near the right side wall of the adapter sleeve 200 as an example, that is, the descaling spray heads 410 are inclined to the left along the air intake direction of the air inlet 102.

[0052] By tilting the multiple descaling spray heads 410 in the descaling spray assembly 400 in a direction away from the connected vertical pipe section along the air intake direction of the air inlet 102, it helps to increase the spraying distance of the descaling spray heads 410 in the direction away from the connected vertical pipe section, thereby helping to improve the descaling range and make the sprayed descaling liquid better cover the air inlet 102.

[0053] like Figures 1 to 3 As shown, a sludge collection tank 104 is provided on the bottom surface of the outer casing 100, and the bottom surface of the outer casing 100 slopes from high to low towards the location of the sludge collection tank 104. Specifically, the sludge collection tank 104 is provided on the bottom plate 130, and the bottom plate 130 slopes towards the sludge collection tank 104. This structure allows the flushed dirt and reacted slurry to fall onto the bottom surface of the outer casing 100 and be collected in the sludge collection tank 104, and then discharged from the sludge collection tank 104, which is beneficial for the collection of dirt and reacted slurry and subsequent treatment.

[0054] like Figures 1 to 4 As shown, in the descaling spray assembly 400, the uppermost descaling liquid spray head 410 is inclined from low to high along the air intake direction of the air inlet 102, while the lowermost descaling liquid spray head 410 is inclined from high to low along the air intake direction of the air inlet 102. This structure helps to increase the spraying distance of the uppermost descaling liquid spray head 410 in the air intake direction, thereby improving the descaling range. It also helps to increase the impact force of the lowermost descaling liquid spray head 410 on the base plate 130, improving the descaling effect on the base plate 130 and facilitating the collection of dirt into the sludge collection tank 104.

[0055] like Figures 1 to 4 As shown, the acute angle formed between the axis of the uppermost descaling liquid spray head 410 in the descaling spray assembly 400 and the horizontal plane is set to 10 to 30 degrees, for example, it can be 10 degrees, 12 degrees, 15 degrees, 17 degrees, 20 degrees, 23 degrees, 25 degrees, 28 degrees or 30 degrees, etc.

[0056] By setting the acute angle between the axis of the uppermost descaling liquid spray head 410 in the descaling spray assembly 400 and the horizontal plane to 10–30 degrees, the uppermost descaling liquid spray head 410 in the descaling spray assembly 400 achieves a longer spray distance in the air intake direction, while also providing a larger spray coverage of the air inlet 102 in the longitudinal direction. This helps to achieve a better cooling effect on the flue gas at the air inlet 102. Furthermore, it prevents the descaling liquid sprayed by the uppermost descaling liquid spray head 410 from being blocked by the top side wall of the adapter sleeve 200.

[0057] like Figures 1 to 4 As shown, the acute angle formed between the axis of the lowest descaling spray head 410 in the descaling spray assembly 400 and the horizontal plane is set to 10 to 30 degrees. For example, it can be 10 degrees, 12 degrees, 15 degrees, 17 degrees, 20 degrees, 23 degrees, 25 degrees, 28 degrees, or 30 degrees, etc.

[0058] By setting the acute angle between the axis of the lowest descaling spray head 410 in the descaling spray assembly 400 and the horizontal plane to 10 to 30 degrees, the lowest descaling spray head 410 in the descaling spray assembly 400 can have a strong impact effect on the base plate 130, while avoiding the descaling liquid sprayed by the lowest descaling spray head 410 in the descaling spray assembly 400 being blocked by the bottom side wall of the adapter sleeve 200.

[0059] like Figures 1 to 4 As shown, the distance between the highest point of the uppermost descaling spray head 410 in the descaling spray assembly 400 and the inner top wall of the adapter sleeve 200 is set to 10-50 cm, for example, it can be 10 cm, 15 cm, 20 cm, 25 cm, 30 cm, 35 cm, 40 cm, 45 cm, or 50 cm, etc. By setting the distance between the highest point of the uppermost descaling spray head 410 in the descaling spray assembly 400 and the inner top wall of the adapter sleeve 200 to 10-50 cm, the uppermost descaling spray head 410 in the descaling spray assembly 400 can have a large spray angle, while avoiding the descaling liquid sprayed by the uppermost descaling spray head 410 being blocked by the top side wall of the adapter sleeve 200.

[0060] like Figures 1 to 4As shown, the distance between the lowest point of the lowest descaling spray head 410 in the descaling spray assembly 400 and the inner bottom wall of the adapter sleeve 200 is set to 5-30 cm. For example, it can be 5 cm, 10 cm, 15 cm, 20 cm, 25 cm, or 30 cm, etc. By setting the distance between the lowest point of the lowest descaling spray head 410 in the descaling spray assembly 400 and the inner bottom wall of the adapter sleeve 200 to 5-30 cm, the lowest descaling spray head 410 in the descaling spray assembly 400 can spray the base plate 130 with a large impact force, while avoiding the descaling liquid sprayed by the lowest descaling spray head 410 in the descaling spray assembly 400 being blocked by the bottom side wall of the adapter sleeve 200.

[0061] like Figures 1 to 3 As shown, the inner bottom wall of the adapter sleeve 200 slopes from high to low along the air intake direction of the air inlet 102, and the acute angle formed by the inner bottom wall of the adapter sleeve 200 and the horizontal plane is set to 1 to 15 degrees, for example, it can be 1 degree, 2 degrees, 3 degrees, 4 degrees, 5 degrees, 6 degrees, 7 degrees, 8 degrees, 9 degrees, 10 degrees, 11 degrees, 12 degrees, 13 degrees, 14 degrees or 15 degrees, etc., so as to avoid the liquid sprayed by the descaling spray head 410 from flowing back to other components and causing damage to other components such as pumps, while allowing the flue gas to enter the air inlet 102 with a better flow path.

[0062] like Figures 1 to 6 As shown, in one embodiment, the flue gas treatment device 10 further includes a filter device 600, which includes a container body 610 and a filter screen 620. The container body 610 forms a filter chamber 611, and an inlet 612 and an outlet 613 communicating with the filter chamber 611. The inlet 612 is used to receive raw slurry, and the outlet 613 is used to connect to the slurry delivery pipe 500. The filter screen 620 is disposed in the filter chamber 611, thereby dividing the filter chamber 611 into two parts, and the inlet 612 and the outlet 613 are respectively located on both sides of the filter screen 620.

[0063] Therefore, the raw slurry entering the filter chamber 611 through the inlet 612 can only reach the outlet 613 after passing through the filter screen 620, and then enter the slurry delivery pipe 500. In other words, the slurry entering the slurry delivery pipe 500 has been filtered, thereby reducing the occurrence of clogging in the slurry delivery pipe 500.

[0064] 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 outer shell has a reaction space, and an air inlet communicating with the reaction space is formed on the bottom side of the outer shell, and an air outlet communicating with the reaction space is formed on the top surface of the outer shell. The adapter sleeve is a cylindrical shape with openings at both ends, and one of the open ends is connected to the air inlet. The descaling solution delivery pipe is located on the outside of the adapter sleeve; and A descaling spray assembly is disposed on the inner side of one of the longitudinal side walls of the adapter sleeve, and includes multiple descaling liquid spray heads. The multiple descaling liquid spray heads are distributed longitudinally and arranged toward the air inlet. The multiple descaling liquid spray heads are connected to the descaling liquid delivery pipe through a pipe passing through the adapter sleeve, thereby spraying descaling liquid into the reaction space through the air inlet.

2. The flue gas treatment device according to claim 1, characterized in that, The uppermost descaling spray head in the descaling spray assembly is inclined from low to high along the air intake direction of the air inlet, while the lowermost descaling spray head is inclined from high to low along the air intake direction of the air inlet.

3. The flue gas treatment device according to claim 2, characterized in that, The acute angle between the axis of the uppermost descaling spray head in the descaling spray assembly and the horizontal plane is set to 10–30 degrees; and / or, The acute angle between the axis of the lowest descaling spray head in the descaling spray assembly and the horizontal plane is set to 10 to 30 degrees.

4. The flue gas treatment device according to claim 2, characterized in that, The distance between the highest point of the uppermost descaling spray head in the descaling spray assembly and the inner top wall of the adapter sleeve is set to 10–50 cm; and / or, The distance between the lowest point of the lowest descaling spray head in the descaling spray assembly and the inner bottom wall of the adapter sleeve is set to 5-30 cm.

5. The flue gas treatment device according to claim 1, characterized in that, Also includes: A slurry delivery pipe is disposed within the reaction space and is lower than the highest point of the air inlet. The slurry delivery pipe extends from the side of the outer shell opposite to the air inlet to the side where the air inlet is located. The slurry delivery pipe is equipped with a slurry spray head for spraying reaction slurry into the reaction space.

6. The flue gas treatment device according to claim 5, characterized in that, Also includes: Filtering device, including: The container body has a filter chamber, and an inlet and an outlet communicating with the filter chamber. The inlet is used to receive the raw reaction slurry, and the outlet is used to connect to the slurry delivery pipe. and A filter screen is disposed within the filter chamber, thereby dividing the filter chamber into two parts, with the inlet and outlet located on opposite sides of the filter screen.

7. The flue gas treatment device according to claim 1, characterized in that, The descaling liquid delivery pipe has two vertical pipe sections, which are located on the outer sides of the two longitudinal sidewalls of the adapter sleeve. The flue gas treatment equipment has two descaling spray assemblies, and multiple descaling liquid spray heads in the two descaling spray assemblies are connected to the two vertical pipe sections respectively.

8. The flue gas treatment device according to claim 7, characterized in that, The multiple descaling spray heads in the descaling spray assembly are all tilted away from the connected vertical pipe section along the air inlet direction.

9. The flue gas treatment device according to claim 1, characterized in that, The inner bottom wall of the adapter sleeve slopes from high to low along the air intake direction of the air inlet, and the acute angle formed between the inner bottom wall of the adapter sleeve and the horizontal plane is set to 1 to 15 degrees.

10. The flue gas treatment apparatus according to claim 1, characterized in that, The bottom surface of the outer shell is provided with a sludge collection tank, and the bottom surface of the outer shell slopes from high to low from the periphery of the sludge collection tank towards the location of the sludge collection tank.

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