A denitrification device for fluidized bed boiler treatment

Abstract

The present application relates to the technical field of denitrification devices, and discloses a denitrification device for fluidized bed boiler treatment, comprising a treatment tube, a first spline sleeve, a first hollow spline shaft, a housing, a spraying member, a mixing member, a second hollow spline shaft, a transmission member, and a driving member. The spraying member comprises hollow shafts rotatably mounted on the side walls of the housing in multiple rows on all sides. The mixing member comprises rotating shafts rotatably mounted on the side walls of the housing in multiple rows on all sides. When in use, driven by the driving member, the hollow shafts in multiple rows on all sides and the rotating shafts in multiple rows on all sides can respectively revolve around the axes of the first spline sleeves in multiple rows on all sides, can also rotate along their own axes, and can also move in the radial direction of the treatment tube. Therefore, the angle adjustment range of the spraying member and the mixing member is improved. That is, it helps to evenly spray solutions such as urea or ammonia water into the interior of the treatment tube, and helps to evenly disperse the flue gas into the interior of the treatment tube, thereby improving the mixing effect of solutions such as urea or ammonia water and the flue gas.

Description

Technical Field

[0001] The present application relates to the technical field of denitrification devices, and in particular to a denitrification device for fluidized bed boiler treatment. Background Art

[0002] Currently, circulating fluidized bed boilers (CFBs), as efficient and environmentally friendly boilers, play an indispensable role in power grid peak-shaving flexibility. However, during ultra-low load operation, the internal boiler temperature drops, making it impossible to meet national emission requirements when operating within the 15-50% rated load range. To address this, a related technology (Announcement No.: CN114459023B) discloses an in-furnace forced denitrification device for CFB boilers operating at ultra-low load. This device utilizes opposing jet nozzles, four-wall tangential circular nozzles, and four-corner tangential circular nozzles to create forced, rigid, and multi-dimensional mixing within the furnace, ensuring a full reaction between the flue gas generated during operation and urea.

[0003] In the process of implementing the technical solution of the present disclosure, it was found that there are at least the following problems in the related technology:

[0004] The forced denitrification system in a circulating fluidized bed boiler operating at ultra-low load utilizes a first cylinder or actuator to move a first slider, while a second cylinder or actuator simultaneously moves a second slider, ultimately adjusting the nozzle's spray angle. This adjustment creates a gas vortex within the furnace, fully mixing urea and flue gas, ultimately improving denitrification efficiency. However, the structure of the drive components limits the nozzle's angle adjustment range, which in turn affects the mixing of solutions like urea or ammonia with the flue gas.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Summary of the Invention

[0006] In order to provide a basic understanding of some aspects of the disclosed technical solutions, a brief summary is given below. The summary is not intended to be a general review, nor to identify key / important components or to delineate the scope of protection of these technical solutions, but rather serves as a preface to the detailed description that follows.

[0007] The technical solution disclosed in the present invention provides a denitration device for fluidized bed boiler treatment to improve the mixing effect of solutions such as urea or ammonia water with flue gas.

[0008] In some technical solutions, a denitrification device for fluidized bed boiler treatment includes: a treatment cylinder; a first spline sleeve, which is rotatably installed on the side wall of the treatment cylinder along the radial direction of the treatment cylinder and is evenly distributed around the treatment cylinder, and along the height direction of the treatment cylinder, multiple first spline sleeves are distributed in rows from top to bottom; a first hollow spline shaft, which is slidably installed on multiple rows of the first spline sleeves around it; a box body, which is respectively installed on multiple rows of the first hollow spline shafts around it, and all are located inside the treatment cylinder; a spraying part, including a hollow shaft, which is rotatably installed on multiple rows of the side walls of the box body around it, and the axes of the multiple rows of the hollow shafts around it are respectively perpendicular to the axes of the multiple rows of the first spline sleeves around it; a mixing part, including a rotating shaft, which is rotatably installed on multiple rows of the side walls of the box body around it, and the four The axes of the rotating shafts in multiple rows coincide with the axes of the hollow shafts in multiple rows around the periphery; the second hollow spline shafts are rotatably mounted on the side walls of the box body in multiple rows around the periphery, and pass through the interiors of the first hollow spline shafts in multiple rows around the periphery, one end of the second hollow spline shafts in multiple rows around the periphery is connected with the supply equipment, and the other end of the second hollow spline shafts in multiple rows around the periphery is connected with the hollow shafts in multiple rows around the periphery; the transmission members are respectively located in the box body in multiple rows around the periphery, and are used to make the hollow shafts in multiple rows around the periphery and the rotating shafts in multiple rows around the periphery rotate as the second hollow spline shafts in multiple rows around the periphery rotate; the driving member is located outside the processing cylinder, and is configured to drive the first spline sleeves in multiple rows around the periphery to rotate, the first hollow spline shafts in multiple rows around the periphery to slide, and the second hollow spline shafts in multiple rows around the periphery to rotate.

[0009] Optionally, the driving member includes: a first synchronous pulley, which is respectively installed on the first spline sleeves in multiple rows around and is located on the outside of the processing cylinder; a first toothed belt, which is respectively installed between two adjacent first synchronous pulleys in the same row; a first bevel gear, which is respectively installed on the first spline sleeves at the bottom of multiple rows around; a first cylindrical member, which is rotatably installed on the outer wall of the processing cylinder and is located below the multiple first bevel gears along the height direction of the processing cylinder, the first cylindrical member includes a first bevel tooth located at its top and a first straight tooth located at its bottom, and the first bevel tooth is meshed with the multiple first bevel gears; an annular plate, which is installed on the outer wall of the processing cylinder and is located below the first cylindrical member along the height direction of the processing cylinder; a first motor, which is installed on the bottom surface of the annular plate, and the rotating end of the first motor passes through the annular plate; a first spur gear, which is installed on the rotating end of the first motor and meshes with the first straight tooth.

[0010] Optionally, the driving member also includes: a support plate, mounted on the top surface of the annular plate and evenly distributed around the processing cylinder; a second spline sleeve, slidably mounted on multiple rows of the second hollow spline shafts around the four sides, and rotatably mounted on multiple support plates around the four sides; a second synchronous pulley, mounted on multiple rows of the second spline sleeves around the four sides; and a second toothed belt, mounted between two adjacent second synchronous pulleys in the same row.

[0011] Optionally, the driving member also includes: a second bevel gear, respectively installed on the second spline sleeves at the bottom of multiple rows around the periphery; a second cylindrical member, installed on the top surface of the annular plate, and sleeved on multiple support plates; a third cylindrical member, rotatably sleeved on the outer wall of the second cylindrical member, the third cylindrical member including a second bevel tooth located at its top and a second straight tooth located at its bottom, the second bevel tooth being meshed with multiple second bevel gears; a second motor, installed on the top surface of the annular plate, the rotating end of the second motor passing through the annular plate; a second spur gear, installed on the rotating end of the second motor, and meshing with the second straight tooth.

[0012] Optionally, the driving member also includes: a guide rail, which is installed on the top surface of the annular plate along the radial direction of the processing cylinder and is located below the multiple rows of second hollow spline shafts along the height direction of the processing cylinder; a slider, which is slidably installed on the multiple guide rails; a support frame, which is installed on the multiple sliders, and the multiple rows of second hollow spline shafts around it are rotatably installed on the multiple support frames; a first round tube, which is installed on the multiple support frames and is respectively opposite to the multiple rows of second hollow spline shafts around it; and a first rotary joint, which is installed between the relative first round tubes and second hollow spline shafts.

[0013] Optionally, the driving member also includes: a fourth cylindrical member, mounted on the top surface of the annular plate and located between the multiple guide rails; a fifth cylindrical member, rotatably mounted on the inner wall of the fourth cylindrical member, the fifth cylindrical member including a third spur tooth located at the bottom thereof; a connecting rod, rotatably mounted on the top surface of the fifth cylindrical member and between the multiple support frames; a third motor, mounted on the bottom surface of the annular plate, the rotating end of the third motor passes through the annular plate; a third spur gear, mounted on the rotating end of the third motor, and meshing with the third spur tooth.

[0014] Optionally, the spraying member further includes: a cylindrical seat, which is respectively installed on the hollow shafts in multiple rows around it, and is coaxially distributed with the hollow shafts in multiple rows around it, and the interiors of the cylindrical seats in multiple rows around it are respectively connected with the hollow shafts in multiple rows around it; a nozzle, which is respectively installed on the side surfaces of the cylindrical seats in multiple rows around it, and is evenly distributed around the cylindrical seats in multiple rows around it, and the multiple nozzles on each cylindrical seat are connected with its interior.

[0015] Optionally, the mixing element further comprises: straight blades, respectively connected to the multiple rows of rotating shafts on all sides and evenly distributed around each rotating shaft; and y-shaped blades, respectively connected between each rotating shaft and the multiple straight blades thereon.

[0016] Optionally, the transmission member includes: a first transmission shaft, which is rotatably mounted on the side walls of the box body in multiple rows around it, and is adjacent to the hollow shafts in multiple rows around it; a fourth spur gear, which is respectively mounted on the hollow shafts in multiple rows around it and the first transmission shafts in multiple rows around it, and two adjacent fourth spur gears are meshed with each other; a second transmission shaft, which is rotatably mounted on the side walls of the box body in multiple rows around it, and is adjacent to the rotating shafts in multiple rows around it; a fifth spur gear, which is respectively mounted on the rotating shafts in multiple rows around it and the second transmission shafts in multiple rows around it, and two adjacent fifth spur gears are meshed with each other; a third bevel gear, which is respectively mounted on the first transmission shafts in multiple rows around it and the second transmission shafts in multiple rows around it; a fourth bevel gear, which is respectively mounted on the second hollow spline shafts in multiple rows around it, and is meshed with the third bevel gears in multiple rows around it.

[0017] Optionally, it also includes: support seats, which are respectively installed on the inner walls of the box in multiple rows around the periphery; second circular tubes, which are respectively installed on the support seats in multiple rows around the periphery and are respectively opposite to the second hollow spline shafts in multiple rows around the periphery; second rotary joints, which are respectively installed between the second hollow spline shafts in multiple rows around the periphery and the second circular tubes in multiple rows around the periphery; right-angle rotary joints, which are respectively installed between the hollow shafts in multiple rows around the periphery and the second circular tubes in multiple rows around the periphery.

[0018] The present invention provides a denitrification device for fluidized bed boiler treatment, which can achieve the following technical effects:

[0019] 1. Driven by the driver and driven by the transmission member, the multiple rows of hollow shafts and the multiple rows of rotating shafts can orbit around the axis of the first splined hub, rotate along their own axes, and move radially within the treatment barrel. This increases the angular adjustment range of the spray and mixing elements, helping to evenly spray solutions such as urea or ammonia into the treatment barrel and disperse flue gas evenly within the barrel. This improves the mixing effect between the urea or ammonia solution and the flue gas, ensuring a thorough reaction between the flue gas and the urea or ammonia solution.

[0020] 2. By controlling the operation of a single first motor, the multi-row hollow shaft and the multi-row rotating shaft can be continuously rotated around the axes of the multi-row first splined sleeves. This allows for free rotation and increases the angle adjustment range. This also reduces the number of power sources, eliminates the need for complex electrical interlocking controls, and reduces the risk of failure.

[0021] 3. By controlling a single second motor, multiple rows of hollow shafts and multiple rows of rotating shafts can be rotated around their respective axes. This allows for free rotation, increasing the angle adjustment range. This also reduces the number of power sources, eliminates the need for complex electrical interlocking controls, and reduces the risk of failure.

[0022] 4. By controlling the operation of a single third motor, the multiple rows of hollow shafts and the multiple rows of rotating shafts around the perimeter can be reciprocated along the radial direction of the treatment drum. This reduces the number of power sources, eliminates the need for complex electrical interlocking control, and reduces the risk of failure.

[0023] 5. The mixing element utilizes multiple straight blades and multiple angular blades. The straight blades propel the flue gas and vapor along the axial direction of the rotating shaft, while the angular blades propel the flue gas and vapor along the radial direction of the rotating shaft, thereby forming a dispersed flow path. Furthermore, driven by the driver, the multiple mixing elements revolve, rotate, and move, causing the flow paths to intersect, separate, or overlap, further enhancing the mixing effect of the flue gas and vapor.

[0024] 6. The spraying element utilizes a cylindrical base and multiple nozzles. Driven by a driver, these nozzles revolve, rotate, and move to form a movable spherical spray area. Furthermore, multiple rows of spraying elements work together to create a spherical spray area within the treatment barrel that can intersect, separate, or overlap. This evenly disperses solutions such as urea or ammonia within the barrel, further enhancing mixing with the flue gas.

[0025] 7. Through the design of multiple first round tubes and multiple first rotary joints, the supply pipeline of the supply equipment will not rotate with the rotation of the multiple second hollow spline shafts, thereby avoiding pipeline entanglement and the like.

[0026] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation. In addition,

[0028] Figure 1 This is a schematic cross-sectional view of a denitration device for fluidized bed boiler treatment provided by an embodiment of the present disclosure;

[0029] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0030] Figure 3 yes Figure 1 Schematic diagram of the enlarged structure at B in

[0031] Figure 4 is Figure 1 Schematic diagram of the enlarged structure at C in

[0032] Figure 5 is Figure 1 Schematic diagram of the enlarged structure at D in

[0033] Figure 6 is Figure 1 Schematic diagram of the enlarged structure at E in

[0034] Figure 7 is Figure 1 Schematic diagram of the enlarged structure at F in

[0035] <00​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​

[0042] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0043] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present disclosure herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0044] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to having a specific orientation, or to being constructed and operated in a specific orientation. Moreover, in addition to being used to indicate orientations or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure may be understood based on the specific circumstances.

[0045] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal connection between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this disclosure based on the specific circumstances.

[0046] Unless otherwise stated, the term "plurality" means two or more.

[0047] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0048] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0049] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0050] Combine Figures 1 to 12 As shown, the embodiment of the present disclosure provides a denitrification device for fluidized bed boiler treatment, comprising a treatment barrel 1, a first spline sleeve 2, a first hollow spline shaft 3, a housing 4, a spraying member, a mixing member, a second hollow spline shaft 7, a transmission member, and a driving member. The first spline sleeve 2 is rotatably arranged on the side wall of the treatment barrel 1 along the radial direction of the treatment barrel 1, and is evenly distributed around the treatment barrel 1. Along the height direction of the treatment barrel 1, multiple first spline sleeves 2 are arranged in rows from top to bottom, and the multiple rows of first spline sleeves 2 around the periphery are all used to support and install a slidable first hollow spline shaft 3. The first hollow spline shaft 3 is slidably arranged on the multiple rows of first spline sleeves 2 around the periphery, and can slide relative to the multiple rows of first spline sleeves 2 around the periphery, and rotate under the drive of the multiple rows of first spline sleeves 2 around the periphery. The housing 4 is respectively installed on the multiple rows of first hollow spline shafts 3 around the periphery, and is located inside the treatment barrel 1, and rotates under the drive of the multiple rows of first hollow spline shafts 3 around the periphery. The spraying element is used to spray solutions such as urea or ammonia, and includes hollow shafts 5 rotatably mounted on the side walls of the four-row housing 4. The axes of the four-row hollow shafts 5 are perpendicular to the axes of the four-row first spline sleeves 2. The mixing element is used to agitate the flow of flue gas or water vapor, and includes rotating shafts 6 rotatably mounted on the side walls of the four-row housing 4. The axes of the four-row rotating shafts 6 coincide with the axes of the four-row hollow shafts 5. Second hollow spline shafts 7 are rotatably mounted on the side walls of the four-row housing 4 and can rotate relative to the four-row housing 4. The second hollow spline shafts 7 pass through the interiors of the four-row first hollow spline shafts 3 and can rotate within the interiors of the four-row first hollow spline shafts 3. One end of the four-row second hollow spline shafts 7 is connected to a supply device, which is used to provide solutions such as urea or ammonia. The other ends of the multi-row second hollow spline shafts 7 are connected to the multi-row hollow shafts 5, allowing solutions such as urea or ammonia to flow through the multi-row second hollow spline shafts 7 and into the multi-row hollow shafts 5 before being sprayed out through the multi-row spraying elements. Transmission elements are located within the multi-row housing 4 and are used to transmit driving force, causing the multi-row hollow shafts 5 and the multi-row rotating shafts 6 to rotate in response to the rotation of the multi-row second hollow spline shafts 7. The drive elements are located outside the treatment barrel 1 and provide the driving force that drives the multi-row first spline sleeves 2 to rotate, the multi-row first hollow spline shafts 3 to slide, and the multi-row second hollow spline shafts 7 to rotate.

[0051] The embodiment of the present disclosure provides a denitrification device for fluidized bed boiler treatment. Under the supply of the supply equipment, solutions such as urea or ammonia water can enter the interior of the nozzle 32 through the second hollow spline shaft 7 and the hollow shaft 5, and finally spray out. During the spraying process, driven by the driving member, the first spline sleeves 2 in multiple rows all around rotate, the first hollow spline shafts 3 in multiple rows all around slide, and the second hollow spline shafts 7 in multiple rows all around rotate. When the first spline sleeves 2 in multiple rows all around rotate, it can drive the first hollow spline shafts 3 in multiple rows all around to rotate, and then drive the box body 4 in multiple rows all around to rotate, and finally make the hollow shafts 5 in multiple rows all around and the rotating shafts 6 in multiple rows all around continuously rotate around the axes of the first spline sleeves 2 in multiple rows all around. When the second hollow spline shafts 7 in multiple rows all around rotate, driven by the transmission member, it can drive the hollow shafts 5 in multiple rows all around and the rotating shafts 6 in multiple rows all around to rotate around their axes respectively. When the multi-row first hollow spline shaft 3 slides, it can drive the multi-row housing 4 to slide, and finally drive the multi-row hollow shaft 5 and the multi-row rotating shaft 6 to slide along the radial direction of the treatment tube 1. Therefore, under the drive of the driving member, the multi-row hollow shaft 5 and the multi-row rotating shaft 6 can revolve around the axis of the first spline sleeve 2, rotate along their own axis, and move along the radial direction of the treatment tube 1. Therefore, the angle adjustment range of the spraying part and the mixing part is improved. That is, it helps to spray solutions such as urea or ammonia water evenly inside the treatment tube 1, and helps to evenly disperse the flue gas inside the treatment tube 1. The mixing effect of solutions such as urea or ammonia water and flue gas is improved, so that the flue gas and urea such as urea or ammonia water solution fully react.

[0052] Optionally, combined Figures 1 to 4 As shown, it also includes a first bearing seat and a first bearing. The first bearing seat is installed on the side wall of the treatment cylinder 1 and is respectively sleeved on the first spline sleeves 2 in multiple rows around the periphery. The first bearing is respectively installed between the first bearing seat in multiple rows around the periphery and the first spline sleeves 2 in multiple rows around the periphery.

[0053] In the disclosed embodiment, the first bearing seat is mounted on the sidewall of the treatment drum 1 and is used to support and position the multi-row first bearings. The multi-row first bearings are used to support and mount the rotatable multi-row first spline sleeve 2, reducing friction on the multi-row first spline sleeve 2 and improving its rotational accuracy.

[0054] Optionally, combined Figures 1 to 4 As shown, the second bearing seat and the second bearing are also included. The second bearing seat is respectively mounted on the side wall of the multi-row box body 4 and is respectively sleeved on the multi-row hollow shaft 5. The second bearing is respectively mounted between the multi-row second bearing seat and the multi-row rotating shaft 6.

[0055] In the disclosed embodiment, the second bearing seats are mounted on the side walls of the multi-row housing 4, supporting and positioning the multi-row second bearings. These second bearings support and position the rotatable multi-row hollow shaft 5, reducing friction and improving its rotational accuracy.

[0056] Optionally, combined Figures 1 to 4 As shown, the third bearing seat and the third bearing are also included. The third bearing seat is respectively mounted on the side wall of the multi-row box body 4 and is respectively sleeved on the multi-row rotating shaft 6. The third bearing is respectively mounted between the multi-row third bearing seat and the multi-row rotating shaft 6.

[0057] In the disclosed embodiment, the third bearing seats are mounted on the sidewalls of the multi-row housing 4, supporting and positioning the multi-row third bearings. These third bearings support and rotatably mount the multi-row rotating shaft 6, reducing friction and improving the rotational accuracy of the multi-row rotating shaft 6.

[0058] Optionally, combined Figures 1 to 4 As shown, the system also includes a fourth bearing seat and a fourth bearing. The fourth bearing seats are mounted on the inner wall of the multi-row housing 4 and are respectively sleeved on the multi-row second hollow spline shaft 7. The fourth bearings are respectively mounted between the multi-row fourth bearing seats and the multi-row second hollow spline shaft 7.

[0059] In the disclosed embodiment, the fourth bearing seats are mounted on the inner walls of the multi-row housing 4, supporting and positioning the multi-row fourth bearings. These bearings support and position the rotatable multi-row second hollow rotating shafts 6, reducing friction on the multi-row rotating shafts 6 and improving their rotational accuracy. Furthermore, they enable the multi-row housing 4 to move under the influence of the multi-row second hollow rotating shafts 6.

[0060] Optionally, combined Figures 1 to 4As shown, the drive assembly includes a first synchronous pulley 8, a first toothed belt, a first bevel gear 9, a first cylindrical member 10, an annular plate 11, a first motor 12, and a first spur gear 13. The first synchronous pulleys 8 are mounted on the perimeter of the multiple rows of first splined sleeves 2 and are located outside the treatment drum 1. They are synchronized with the multiple rows of first splined sleeves 2. The first toothed belt is fitted between two adjacent first synchronous pulleys 8 in the same row to transmit driving force. The first bevel gear 9 is mounted on the bottommost first splined sleeve 2 in the multiple rows to rotate the bottommost first splined sleeve 2 in the multiple rows. The first cylindrical member 10 is rotatably fitted onto the outer wall of the treatment drum 1 and can rotate relative to the treatment drum 1. It is located below the multiple first bevel gears 9 along the height of the treatment drum 1. The first cylindrical member 10 includes first bevel teeth at its top and first spur teeth at its bottom. The first bevel teeth mesh with the multiple first bevel gears 9 to transmit driving force and redirect the force. An annular plate 11 is mounted on the outer wall of the treatment drum 1, located below the first cylindrical member 10 along the height of the treatment drum 1, and serves to support the relevant components of the mounting device. A first motor 12 is mounted on the bottom surface of the annular plate 11. The rotating end of the first motor 12 passes through the annular plate 11 to transmit driving force. A first spur gear 13 is mounted on the rotating end of the first motor 12 and rotates under the drive of the first motor 12. The first gear meshes with the first spur gear to transmit driving force.

[0061] In the embodiment disclosed herein, the first motor 12 is controlled to work, and the first cylindrical part 10 can be driven to rotate under the meshing action between the teeth of the first straight gear 13 and the first straight tooth. Then, under the meshing action between the teeth of the first bevel tooth and the multiple first bevel gears 9, the first spline sleeves 2 at the bottom of the four rows can be driven to rotate respectively. Then, under the transmission of the first synchronous pulleys 8 and the first toothed belts of the four rows, the remaining first spline sleeves 2 of the four rows can be rotated synchronously, thereby driving the synchronous rotation of the four rows of boxes 4. Therefore, through a single first motor 12, the function of continuous rotation of the four rows of hollow shafts 5 and the four rows of rotating shafts 6 around the axes of the four rows of first spline sleeves 2 can be achieved. That is, they can rotate freely, and the angle adjustment range is increased. It also reduces the number of power sources, eliminates the need for complex electrical interlocking control, and reduces the risk of failure.

[0062] Optionally, combined Figure 1 and Figure 4 As shown, the fifth bearing is also included and is installed between the processing cylinder 1 and the first cylinder.

[0063] In the embodiment of the present disclosure, the fifth bearing is used to reduce the friction between the first cylinder and the processing cylinder 1 and to improve the accuracy of the first cylinder when rotating relative to the processing cylinder 1 .

[0064] Optionally, combined Figure 1 、 Figure 5、 Figure 6 and Figure 7 As shown, the driving member also includes a support plate 14, a second spline sleeve 15, a second synchronous pulley 16 and a second toothed belt. The support plate 14 is mounted on the top surface of the annular plate 11 and is evenly distributed around the four sides of the treatment cylinder 1, and is respectively used to support and install multiple rows of rotatable second spline sleeves 15 around the four sides. The second spline sleeves 15 are respectively slidably mounted on multiple rows of second hollow spline shafts 7 around the four sides, and are respectively rotatably mounted on multiple support plates 14 around the four sides, and are respectively used to drive multiple rows of second hollow spline shafts 7 around the four sides to rotate. The second synchronous pulleys 16 are respectively mounted on multiple rows of second spline sleeves 15 around the four sides, and rotate synchronously with the multiple rows of second spline sleeves 15 around the four sides. The second toothed belt is respectively mounted between two adjacent second synchronous pulleys 16 in the same row, and is respectively used to transmit driving force.

[0065] In the disclosed embodiment, after any second splined sleeve 15 in any row is controlled to rotate, driven by the second synchronous pulley 16 and second toothed belt in the same row, the second splined sleeves 15 in the same row can rotate synchronously. Subsequently, driven by the transmission components in the same row, the hollow shafts 5 and rotating shafts 6 in the same row can rotate continuously, achieving free rotation. Furthermore, because the multiple support plates 14 are fixed in position, the positions of the second splined sleeves 15 in multiple rows around the perimeter remain fixed. This allows the corresponding power source to be installed in a fixed position in the device without moving, facilitating subsequent wiring.

[0066] Optionally, combined Figure 1 、 Figure 5 、 Figure 6 and Figure 7 As shown, the fifth bearing seat and the sixth bearing are also included. The fifth bearings are respectively mounted on multiple support plates 14 and respectively sleeved on multiple rows of second spline sleeves 15. The sixth bearings are respectively mounted between the multiple rows of fifth bearing seats and the multiple rows of second spline sleeves 15.

[0067] In the disclosed embodiment, the fifth bearing seats are mounted on multiple support plates 14, each supporting and positioning the multi-row sixth bearings. These multi-row sixth bearings support and position the rotatable multi-row second spline sleeves 15, reducing friction on the multi-row rotating shaft 6 and improving its rotational accuracy.

[0068] Optionally, combined Figure 1 and Figure 7As shown, the drive assembly also includes a second bevel gear 17, a second cylindrical member 18, a third cylindrical member 19, a second motor 20, and a second spur gear 21. The second bevel gears 17 are mounted on the bottom-most second splined sleeves 15 in multiple rows around the perimeter, driving the rotation of the bottom-most second splined sleeves 15 in multiple rows around the perimeter. The second cylindrical member 18 is mounted on the top surface of the annular plate 11 and is mounted on multiple support plates 14, supporting and mounting the rotatable third cylindrical member 19. The third cylindrical member 19 is rotatably mounted on the outer wall of the second cylindrical member 18 and can rotate relative to the second cylindrical member 18. The third cylindrical member 19 includes second bevel teeth at its top and second spur teeth at its bottom. The second bevel teeth mesh with the multiple second bevel gears 17, transmitting the driving force and increasing the direction of the force. The second motor 20 is mounted on the top surface of the annular plate 11. The rotating end of the second motor 20 passes through the annular plate 11 to provide the driving force. The second spur gear 21 is mounted on the rotating end of the second motor 20 and rotates under the drive of the second motor 20. The second spur gear 21 meshes with the second spur teeth to transmit the driving force together.

[0069] In the disclosed embodiment, the second motor 20 is controlled to work, and the meshing action between the second spur gear 21 and the second spur teeth can drive the third cylindrical part 19 to rotate. Then, under the meshing action between the second bevel teeth and the multiple second bevel gears 17, the second spline sleeves 15 at the bottom of the four rows can be driven to rotate respectively. Then, under the transmission of the four rows of second synchronous pulleys 16 and the four rows of second toothed belts, the remaining four rows of second spline sleeves 15 can rotate synchronously, thereby driving the four rows of second hollow spline shafts 7 to rotate synchronously. Then, under the transmission of the four rows of transmission parts, the four rows of hollow shafts 5 and the four rows of rotating shafts 6 can realize the function of rotating around their respective axes. That is, they can rotate freely, and the angle adjustment range is increased. It also reduces the number of power sources, eliminates the need for complex electrical interlocking control, and reduces the risk of failure.

[0070] Optionally, combined Figure 1 、 Figure 7 and Figure 8 As shown, the seventh bearing is also included. The seventh bearing is installed between the second cylindrical member 18 and the third cylindrical member 19.

[0071] In the embodiment of the present disclosure, the seventh bearing is used to reduce the friction between the second cylinder and the third cylinder and to improve the accuracy of the rotation of the third cylinder relative to the second cylinder.

[0072] Optionally, combined Figure 1 、 Figure 7 、 Figure 8 、 Figure 10 and Figure 12As shown, the drive member also includes guide rails 22, sliders 23, a support frame 24, a first circular tube 25, and a first rotary joint. The guide rails 22 are mounted on the top surface of the annular plate 11 along the radial direction of the treatment drum 1, and are located below the multiple rows of second hollow spline shafts 7 along the height direction of the treatment drum 1, respectively, for supporting and mounting rotatable slides. The sliders 23 are slidably mounted on the multiple guide rails 22, and together with the multiple guide rails 22, they serve as guides and supports. The support frames 24 are mounted on the multiple sliders 23 and can move along the radial direction of the treatment drum 1 under the guidance and support of the multiple guide rails 22 and the multiple sliders 23. The multiple rows of second hollow spline shafts 7 are rotatably mounted on the multiple support frames 24, respectively, rotating relative to the multiple support frames 24 and moving driven by the multiple support frames 24. The first circular tubes 25 are mounted on the multiple support frames 24, respectively, and opposite the multiple rows of second hollow spline shafts 7, respectively, for connecting to the supply pipes of the supply equipment. The first rotary joints are respectively installed between the opposite first circular tubes 25 and the second hollow spline shaft 7 , so that the opposite first circular tubes 25 and the second hollow spline shaft 7 can rotate relative to each other.

[0073] In the embodiment disclosed herein, under the guiding support of multiple guide rails 22 and multiple sliders 23, multiple support frames 24 can move respectively along the radial direction of the treatment barrel 1. Then, the multiple rows of second hollow spline shafts 7 are driven to move, and then the multiple rows of housings 4 are driven to move along the radial direction of the treatment barrel 1, while at the same time driving the multiple rows of first hollow spline shafts 3 to slide relative to the multiple rows of first spline sleeves 2. Finally, the function of moving the multiple rows of hollow shafts 5 and the multiple rows of rotating shafts 6 along the radial direction of the treatment barrel 1 is realized. In addition, through the design of multiple first circular tubes 25 and multiple first rotary joints, the supply pipeline of the supply equipment will not rotate with the rotation of the multiple second hollow spline shafts 7, thereby avoiding pipeline entanglement and the like.

[0074] Optionally, combined Figure 1 、 Figure 5 、 Figure 6 and Figure 7 As shown, the sixth bearing seat and the eighth bearing are also included. The sixth bearings are respectively mounted on multiple support frames 24 and respectively sleeved on multiple second hollow spline shafts 7. The eighth bearings are respectively mounted between multiple rows of sixth bearing seats and multiple rows of second hollow spline shafts 7.

[0075] In the disclosed embodiment, the sixth bearing seats are mounted on multiple support brackets 24 to support and position the multiple-row eighth bearings. These multiple-row eighth bearings are used to support and position the rotatable multiple-row second hollow spline shaft 7, reducing friction on the multiple-row second hollow spline sleeves, improving the rotational accuracy of the multiple-row second hollow spline shaft 7, and enabling the multiple-row second hollow spline shaft 7 to move under the drive of the multiple support brackets 24.

[0076] Optionally, combined Figure 1 、 Figure 7 and Figure 8 As shown, the driving member also includes a fourth cylindrical member 26, a fifth cylindrical member 27, a connecting rod 28, a third motor 29, and a third spur gear 30. The fourth cylindrical member 26 is mounted on the top surface of the annular plate 11 and is located between the multiple guide rails 22, and is used to support and mount the rotatable fifth cylindrical member 27. The fifth cylindrical member 27 is rotatably mounted on the inner wall of the fourth cylindrical member 26 and can rotate relative to the fourth cylindrical member 26. The fifth cylindrical member 27 includes third spur teeth located at its bottom. The connecting rod 28 is rotatably mounted between the top surface of the fifth cylindrical member 27 and the multiple support frames 24, and can rotate relative to the fifth cylindrical member 27 and the multiple support frames 24. The third motor 29 is mounted on the bottom surface of the annular plate 11. The rotating end of the third motor 29 passes through the annular plate 11 to transmit driving force. The third spur gear 30 is mounted on the rotating end of the third motor 29 and rotates under the drive of the third motor 29. The third spur gear 30 meshes with the third spur teeth to transmit the driving force together.

[0077] In the embodiment of the present disclosure, by controlling the third motor 29 to work, the third spur gear 30 can be driven to rotate. Through the inter-tooth meshing action with the third spur teeth, the fifth cylindrical member 27 can be driven to rotate. Then, under the pull or push of multiple connecting rods 28, and the guiding and supporting action of multiple guide rails 22 and multiple sliders 23, the multiple support frames 24 move back and forth in the radial direction of the processing cylinder 1. Therefore, by controlling the forward and reverse rotation of a single third motor 29, the function of reciprocating the radial direction of the processing cylinder 1 by multiple rows of hollow shafts 5 and multiple rows of rotating shafts 6 can be finally achieved. The number of power sources is reduced, and there is no need for complex electrical interlocking control, which reduces the risk of failure.

[0078] Optionally, combined Figure 1 、 Figure 7 and Figure 8 As shown, a ninth bearing is also included. The ninth bearing is installed between the fourth cylindrical member 26 and the fifth cylindrical member 27.

[0079] In the embodiment of the present disclosure, the ninth bearing is used to reduce the friction between the fourth cylindrical member 26 and the fifth cylindrical member 27 and to improve the accuracy of the rotation of the fifth cylindrical member 27 relative to the fourth cylindrical member 26 .

[0080] Optionally, combined Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 10 and Figure 11 As shown, the spraying member also includes a cylindrical seat 31 and a nozzle 32. The cylindrical seat 31 is mounted on the perimeter of the multi-row hollow shaft 5 and is coaxially distributed with the perimeter of the multi-row hollow shaft 5. The interior of the multi-row cylindrical seat 31 is connected to the perimeter of the multi-row hollow shaft 5, allowing a solution such as urea or ammonia to enter the temple of the multi-row cylindrical seat 31 through the perimeter of the multi-row hollow shaft 5. The nozzles 32 are mounted on the sides of the multi-row cylindrical seat 31 and are evenly distributed around the perimeter of the multi-row cylindrical seat 31. The multiple nozzles 32 on each cylindrical seat 31 are connected to the interior of the cylindrical seat 31, allowing the urea or ammonia solution within the perimeter of the cylindrical seat 31 to be sprayed out from the multiple nozzles 32 thereon.

[0081] In the disclosed embodiment, since the multiple nozzles 32 on each cylindrical seat 31 are located on its annular side surface, the spraying directions of the multiple nozzles 32 are different, thereby increasing the spraying range during the initial spraying. Subsequently, driven by the driving member, the multiple nozzles 32 revolve, rotate, and move to form a movable spherical spraying area. In addition, the multiple rows of spraying members on the periphery perform the spraying operation together, forming a spherical spraying area inside the treatment barrel 1 that can intersect, separate, or overlap with each other, so that the solution such as urea or ammonia water is evenly dispersed inside the treatment barrel 1, thereby further improving the mixing effect with the flue gas.

[0082] Optionally, combined Figures 1 to 4 As shown, the mixing element further includes straight blades 33 and y-shaped blades 34. The straight blades 33 are connected to the rotating shafts 6 in multiple rows and are evenly distributed around each rotating shaft 6 to agitate the flue gas and vapor. The y-shaped blades 34 are connected between each rotating shaft 6 and the plurality of straight blades 33 thereon and also agitate the flue gas and vapor.

[0083] In the disclosed embodiment, controlled rotation of any rotating shaft 6 drives the multiple straight blades 33 and y-shaped blades 34 thereon to rotate, ultimately agitating the flue gas and water vapor to enhance mixing. Simultaneously, influenced by the blade shape, the straight blades 33 propel the flue gas and water vapor axially, while the y-shaped blades 34 propel the flue gas and water vapor radially, thereby forming a dispersed flow path. Subsequently, driven by a driving element, the multiple mixing elements, through orbital and rotational movement, can cause the flow paths to intersect, separate, or overlap, further enhancing the mixing effect of the flue gas and water vapor.

[0084] Optionally, combined Figures 1 to 4As shown, the transmission components include a first transmission shaft 35, a fourth spur gear, a second transmission shaft 36, a fifth spur gear, a third bevel gear, and a fourth bevel gear. The first transmission shaft 35 is rotatably mounted on the side walls of the four-row housing 4, and is adjacent to the four-row hollow shaft 5, and can rotate relative to the four-row housing 4. The fourth spur gear is mounted on the four-row hollow shaft 5 and the four-row first transmission shaft 35, and the two adjacent fourth spur gears are engaged with each other to transmit the driving force together, so that the four-row hollow shaft 5 can rotate with the rotation of the four-row first transmission shaft 35. The second transmission shaft 36 is rotatably mounted on the side walls of the four-row housing 4, and is adjacent to the four-row rotating shaft 6, and can rotate relative to the four-row housing 4. The fifth spur gears are mounted on the circumferential multi-row rotating shaft 6 and the circumferential multi-row second transmission shaft 36. Adjacent fifth spur gears mesh with each other, jointly transmitting driving force, allowing the circumferential multi-row rotating shaft 6 to rotate in conjunction with the rotation of the circumferential multi-row second transmission shaft 36. The third bevel gears are mounted on the circumferential multi-row first transmission shaft 35 and the circumferential multi-row second transmission shaft 36, respectively, to drive the rotation of the circumferential multi-row first transmission shaft 35 and the circumferential multi-row second transmission shaft 36. The fourth bevel gears are mounted on the circumferential multi-row second hollow spline shaft 7 and rotate under the drive of the circumferential multi-row second hollow spline shaft 7. The fourth bevel gears mesh with the circumferential multi-row third bevel gears, jointly transmitting driving force and changing the direction of force.

[0085] In the disclosed embodiment, the controlled rotation of the multi-row second hollow spline shaft 7 drives the multi-row fourth bevel gear. Through meshing action between the teeth, this drives the multi-row third bevel gear, which in turn drives the multi-row first transmission shaft 35 and the multi-row second transmission shaft 36. Subsequently, through the meshing action between the teeth of the multi-row fourth spur gear and the multi-row fifth bevel gear, the multi-row hollow shaft 5 and the multi-row rotating shaft 6 are rotated. Ultimately, the multi-row hollow shaft 5 and the multi-row rotating shaft 6 rotate in conjunction with the rotation of the multi-row second hollow spline shaft 7.

[0086] Optionally, combined Figures 1 to 4As shown, it also includes a support seat 37, a second circular tube 38, a second rotary joint and a right-angle rotary joint. The support seats 37 are respectively installed on the inner walls of the multiple rows of the box body 4, and are respectively used to support and install the second circular tube 38. The second circular tube 38 is respectively installed on the multiple rows of support seats 37, and is respectively opposite to the multiple rows of the second hollow spline shafts 7, and is respectively used to transport solutions such as urea or ammonia water. The second rotary joint is respectively installed between the multiple rows of the second hollow spline shafts 7 and the multiple rows of the second circular tube 38, and is used to allow the multiple rows of the second hollow spline shafts 7 and the multiple rows of the second circular tube 38 to rotate relative to each other. The right-angle rotary joint is respectively installed between the multiple rows of the hollow shafts 5 and the multiple rows of the second circular tube 38, and is used to allow the multiple rows of the hollow shafts 5 and the multiple rows of the second circular tube 38 to rotate relative to each other.

[0087] In the disclosed embodiment, the second circular tube 38, the second rotary joint, and the right-angle rotary joint are all used to transport the solution. The second rotary joint allows for the rotation of the multiple rows of second hollow spline shafts 7 and the multiple rows of second circular tubes 38. The right-angle rotary joint allows for the rotation of the multiple rows of hollow shafts 5 and the multiple rows of second circular tubes 38. This allows the rotation of two mutually perpendicular pipelines in the multiple rows while transporting the medium.

[0088] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless expressly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A denitrification device for fluidized bed boiler treatment, characterized in that: include: treatment barrel; A first spline sleeve is rotatably provided on the side wall of the treatment cylinder along the radial direction of the treatment cylinder and is evenly distributed around the treatment cylinder. A plurality of the first spline sleeves are arranged in a row from top to bottom along the height direction of the treatment cylinder. A first hollow spline shaft is slidably inserted into the first spline sleeves in a plurality of rows on all sides; The box body is respectively installed on the first hollow spline shafts in multiple rows around the periphery and is located inside the treatment cylinder; The spraying member comprises hollow shafts rotatably mounted on the side walls of the box body in multiple rows, wherein the axes of the hollow shafts in multiple rows are perpendicular to the axes of the first spline sleeves in multiple rows; The mixing element comprises rotating shafts rotatably mounted on the side walls of the box in multiple rows, wherein the axes of the rotating shafts in multiple rows coincide with the axes of the hollow shafts in multiple rows; The second hollow spline shafts are rotatably mounted on the side walls of the box in multiple rows around the periphery, and pass through the interiors of the first hollow spline shafts in multiple rows around the periphery, one end of the second hollow spline shafts in multiple rows around the periphery is respectively connected to the supply equipment, and the other end of the second hollow spline shafts in multiple rows around the periphery is respectively connected to the hollow shafts in multiple rows around the periphery; Transmission members are respectively located in the boxes in multiple rows around the periphery, and are used to make the hollow shafts in multiple rows around the periphery and the rotating shafts in multiple rows around the periphery rotate along with the rotation of the second hollow spline shafts in multiple rows around the periphery; The driving member is located outside the treatment cylinder and is configured to drive the first spline sleeves in multiple rows around the periphery to rotate, the first hollow spline shafts in multiple rows around the periphery to slide, and the second hollow spline shafts in multiple rows around the periphery to rotate.

2. A denitration device for fluidized bed boiler treatment according to claim 1, characterized in that: The driving member includes: First synchronous pulleys are respectively installed on the first spline sleeves in multiple rows around the periphery and are all located outside the processing cylinder; A first toothed belt is respectively mounted between two adjacent first synchronous pulleys in the same row; The first bevel gears are respectively mounted on the first spline sleeves at the bottom of the multiple rows around the periphery; a first cylindrical member rotatably mounted on an outer wall of the treatment cylinder and located below the plurality of first bevel gears along a height direction of the treatment cylinder, the first cylindrical member comprising first bevel teeth at a top thereof and first straight teeth at a bottom thereof, the first bevel teeth meshing with the plurality of first bevel gears; an annular plate, mounted on the outer wall of the treatment cylinder and located below the first cylindrical member along the height direction of the treatment cylinder; a first motor mounted on the bottom surface of the annular plate, wherein a rotating end of the first motor passes through the annular plate; The first spur gear is mounted on the rotating end of the first motor and meshes with the first spur teeth.

3. A denitration device for fluidized bed boiler treatment according to claim 2, characterized in that: The driving member further comprises: Support plates are mounted on the top surface of the annular plate and are evenly distributed around the treatment cylinder; The second spline sleeves are slidably mounted on the plurality of rows of the second hollow spline shafts on the four sides, and are rotatably mounted on the plurality of support plates on the four sides; The second synchronous pulleys are respectively installed on the second spline sleeves in multiple rows around the periphery; The second toothed belt is respectively mounted between two adjacent second synchronous pulleys in the same row.

4. A denitration device for fluidized bed boiler treatment according to claim 3, characterized in that: The driving member further comprises: The second bevel gears are respectively mounted on the second spline sleeves at the bottom of the multiple rows around the periphery; The second cylindrical member is installed on the top surface of the annular plate and sleeved on multiple said support plates; The third cylindrical member is rotatably sleeved on the outer wall of the second cylindrical member. The third cylindrical member includes a second bevel gear at its top and a second straight gear at its bottom. The second bevel gear meshes with multiple said second bevel gears; The second motor is installed on the top surface of the annular plate, and the rotating end of the second motor passes through the annular plate; The second straight gear is installed on the rotating end of the second motor and meshes with the second straight gear.

5. The denitration device for fluidized bed boiler treatment according to claim 2, characterized in that: The driving member further includes: The guide rails are installed on the top surface of the annular plate along the radial direction of the processing cylinder and are respectively located below multiple columns of said second hollow spline shafts along the height direction of the processing cylinder; The sliders are respectively slidably installed on multiple said guide rails; The support frames are respectively installed on multiple said sliders, and multiple columns of said second hollow spline shafts around are respectively rotatably installed on multiple said support frames; The first round tubes are respectively installed on multiple said support frames and are respectively opposite to multiple columns of said second hollow spline shafts around; The first rotary joints are respectively installed between the opposite first round tubes and said second hollow spline shafts.

6. The denitration device for fluidized bed boiler treatment according to claim 5, characterized in that: The driving member further includes: The fourth cylindrical member is installed on the top surface of the annular plate and is located between multiple said guide rails; The fifth cylindrical member is rotatably installed on the inner wall of the fourth cylindrical member. The fifth cylindrical member includes a third straight gear at its bottom; The connecting rods are respectively rotatably installed between the top surface of the fifth cylindrical member and multiple said support frames; The third motor is installed on the bottom surface of the annular plate, and the rotating end of the third motor passes through the annular plate; The third straight gear is installed on the rotating end of the third motor and meshes with the third straight gear.

7. A denitration device for fluidized bed boiler treatment according to any one of claims 1 to 6, characterized in that: The spraying member further includes: The cylindrical seats are respectively installed on multiple columns of said hollow shafts around and are coaxially distributed with multiple columns of said hollow shafts around. The interiors of multiple columns of said cylindrical seats around are respectively connected to multiple columns of said hollow shafts; The nozzles are respectively installed on the sides of multiple columns of said cylindrical seats around and are evenly distributed around multiple columns of said cylindrical seats around. Multiple said nozzles on each cylindrical seat are respectively connected to its interior.

8. A denitration device for fluidized bed boiler treatment according to any one of claims 1 to 6, characterized in that: The mixing member further includes: The straight blades are respectively connected to multiple columns of said rotating shafts around and are evenly distributed around each said rotating shaft; The L-shaped blades are respectively connected between each said rotating shaft and multiple said straight blades thereon.

9. A denitration device for fluidized bed boiler treatment according to any one of claims 1 to 6, characterized in that: The transmission member includes: The first transmission shafts are respectively rotatably installed on the side walls of multiple columns of said boxes around and are respectively adjacent to multiple columns of said hollow shafts; The fourth straight gears are respectively installed on multiple columns of said hollow shafts and multiple columns of said first transmission shafts around. Two adjacent said fourth straight gears mesh with each other; The second transmission shafts are respectively rotatably installed on the side walls of multiple columns of said boxes around and are respectively adjacent to multiple columns of said rotating shafts; The fifth straight gears are respectively installed on multiple columns of said rotating shafts and multiple columns of said second transmission shafts around. Two adjacent said fifth straight gears mesh with each other; third bevel gears, mounted on the first transmission shaft in multiple rows around the periphery and the second transmission shaft in multiple rows around the periphery; The fourth bevel gears are respectively mounted on the second hollow spline shafts in multiple rows around the periphery and are respectively meshed with the third bevel gears in multiple rows around the periphery.

10. A denitration device for fluidized bed boiler treatment according to any one of claims 1 to 6, characterized in that: Also includes: Support seats are respectively installed on the inner walls of the box in multiple rows around the periphery; The second circular tubes are respectively installed on the support seats in multiple rows around the periphery and are respectively opposite to the second hollow spline shafts in multiple rows around the periphery; The second rotary joints are respectively installed between the second hollow spline shafts in multiple rows around the periphery and the second circular tubes in multiple rows around the periphery; The right-angle rotary joints are respectively installed between the hollow shafts arranged in multiple rows around the periphery and the second circular tubes arranged in multiple rows around the periphery.

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