Boiler denitration equipment convenient to install

Abstract

The boiler denitration equipment convenient to install comprises a dust removal box, the dust removal box is fixedly connected to one side of the top of a fixing frame, the top of the fixing frame is fixedly connected with a heat exchange box and a denitration body, the inner side face of the dust removal box is rotationally connected with a supporting assembly, and one end of the supporting assembly penetrates through a filter plate; limiting balls are fixed to the side faces of the filtering plates. One ends of the supporting assemblies make movable contact with the limiting balls. Gaps exist between the filter plate and the scraper I and between the filter plate and the scraper II, so that flue gas can be in contact with the whole filter plate, and impurities in the flue gas can be better filtered; a second scraping plate is stirred to slide in the direction away from the filter plate until one end of a mounting plate is separated from a limiting clamping groove and is completely located in a movable groove, a fixing ball is located in a containing groove, at the moment, the filter plate is not limited, and the distance between a connecting rod and one side of a rotating rod is larger than the thickness of the filter plate; it is ensured that the filter plate can be taken out between the connecting rod and the rotating rod, and maintenance is convenient.

Description

Technical Field

[0001] The present invention belongs to the technical field of boiler denitration, and particularly relates to a boiler denitration device that is convenient for installation. Background Art

[0002] As is well known, the flue gas generated by boiler combustion contains NOx that pollutes the environment. Therefore, denitration is required before discharging the flue gas. Denitration is generally divided into pre-combustion denitration, in-combustion denitration, and post-combustion denitration. Denitration devices have been widely used in the field of boiler combustion.

[0003] For example, a denitration device for boilers disclosed in the national patent publication number CN215216297U includes turning on a motor. The rotation of the motor drives the rotation of a rotating rod, and the rotation of the rotating rod drives the rotation of a front cleaning rod, thereby cleaning the left end face of a filter plate, facilitating the removal of impurities adhering to the left end face of the filter plate; the rotating rod passes through the filter plate and is connected to a rear cleaning rod. The left end face of the rear cleaning rod is in contact with the right end face of the filter plate, facilitating the cleaning of the right end of the filter plate, and thus cleaning both ends of the filter plate simultaneously, with relatively high practicality.

[0004] However, the traditional device still has the following problems when in use: Since the cleaning rod has a certain thickness and width, and the cleaning rod is in contact with the end face of the filter plate, when the impurities in the flue gas pass through the filter plate, they cannot fully contact the filter plate, thereby reducing the efficiency of flue gas filtration; and the filter plate is fixed inside the dust removal box, making it inconvenient to maintain the filter plate subsequently. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a boiler denitration device that is convenient for installation, which has the advantages of higher filtration efficiency and the filter plate can be taken out between the connecting rod and the rotating rod, facilitating its maintenance.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A boiler denitration device that is convenient for installation, including a dust removal box, the dust removal box is fixedly connected to one side of the top of a fixed frame, a heat exchange box and a denitration body are fixedly connected to the top of the fixed frame. A support assembly is rotatably connected to the inner side surface of the dust removal box, one end of the support assembly passes through a filter plate, a limiting ball is fixed to the side surface of the filter plate, and one end of the support assembly is in movable contact with the limiting ball; an electric telescopic rod is fixedly connected to the top of the fixed frame, a top holding assembly is fixed to the telescopic end of the electric telescopic rod, a slag collecting hopper is movably inserted into the top of the top holding assembly, and the slag collecting hopper is located in a notch groove, and the notch groove is opened at the bottom of the dust removal box.

[0007] Preferably, a smoke inlet pipe is connected to one side of the dust removal box, and a smoke inlet valve is installed on the smoke inlet pipe. The dust removal box and the side surface of the heat exchange box are connected through a connecting smoke pipe, and a connecting valve is installed on the connecting smoke pipe. The side surface of the heat exchange box and the denitration body are connected through a denitration smoke pipe, and a denitration valve is installed on the denitration smoke pipe. A smoke exhaust pipe is connected to the denitration body, and a smoke exhaust valve is arranged on the smoke exhaust pipe.

[0008] Preferably, the support assembly includes a connecting rod, a first scraper, a rotating rod, a second scraper, a mounting plate, and a fixing ball. A motor is fixedly connected to the outer side of one side of the dust removal box, and the rotating end of the motor passes through the inside of the dust removal box. The connecting rod is fixed to the rotating end of the motor. The connecting rod is a circular rod, and a limiting card slot and a moving slot are formed on the outer ring surface of the connecting rod. Both the limiting card slot and the moving slot are square plate-shaped slots.

[0009] Preferably, the first scraper is sleeved on the outer ring surface of the connecting rod. The first scraper is a square plate, and the lengths of the two side plates on both sides of the first scraper with respect to the center of the connecting rod are not equal. A limiting block is fixed in the hole on one side surface of the first scraper through which the connecting rod passes, and the limiting block is slidably connected in the moving slot. A elastic plate is fixed between the side of the first scraper away from the fixing ball and the side surface of the moving slot. One end of the longer side plate of the first scraper is in movable contact with a limiting ball, and two groups of limiting balls are fixed.

[0010] Preferably, the rotating rod is rotatably connected to the side wall of the dust removal box. The rotating rod is a circular rod, and a receiving groove with a circular groove structure is formed on one side of the rotating rod. A movable groove with a square plate-shaped groove structure is formed on the outer ring surface of the rotating rod. The second scraper is sleeved on the outer ring surface of the rotating rod. The second scraper is a square plate-shaped groove structure, and the lengths of the two side plates on both sides of the second scraper with respect to the center of the rotating rod are not equal.

[0011] Preferably, the mounting plate is fixedly connected to one side of the second scraper, and the mounting plate is slidably connected in the movable groove. One end of the mounting plate passes through a through hole and is movably inserted into the limiting card slot. The through hole is formed at the center of the side surface of the filter plate. One end of the longer side plate of the second scraper is in movable contact with another group of limiting balls. A positioning column is fixedly connected to the top inside the dust removal box, and the bottom of the positioning column is movably inserted into a positioning hole formed at the top of the filter plate.

[0012] Preferably, the fixing ball is fixed on the surface of the mounting plate. The fixing ball is located in the through hole, and a positioning column is fixedly connected between one side of the mounting plate and one side of the movable groove.

[0013] Preferably, the top supporting assembly includes an extension plate and a cushion plate. The extension plate is an "L"-shaped plate structure, and the cushion plate is fixed to the telescopic end of the electric telescopic rod. The cushion plate is a square plate, and the cushion plate is fixed to the top end of the extension plate. A card slot is formed on the bottom surface of the cushion plate.

[0014] Preferably, the slag collection hopper has a semi-circular cavity structure. The bottom of the filter plate is located inside the slag collection hopper. The notch groove is a square plate-shaped groove, and the slag collection hopper fits with the notch groove.

[0015] Preferably, a clamping block is integrally formed at the bottom of the slag collection hopper. The clamping block is movably inserted into the clamping groove, and damping protrusions are provided on the surfaces of the clamping block and the clamping groove that are in contact with each other.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, when the filter plate filters impurities in the flue gas, it is ensured that the longer side plates of the first scraper and the second scraper are in contact with the limit balls. Therefore, there is a gap between the filter plate and the first scraper and the second scraper, and the flue gas can contact the entire filter plate, which is convenient for better filtering of the impurities in the flue gas and has higher filtering efficiency; move the second scraper in a direction away from the filter plate until one end of the mounting plate disengages from the limit card slot and the one end of the mounting plate is completely located in the movable slot, and the fixed ball is located in the receiving slot. At this time, the filter plate loses its limit, and the distance between the connecting rod and one side of the rotating rod is greater than the thickness of the filter plate, ensuring that the filter plate can be taken out between the connecting rod and the rotating rod, which is convenient for its maintenance; the overall combination of the first scraper and the second scraper can not only better filter the impurities in the flue gas but also facilitate the replacement of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the dust removal box of the present invention.

[0019] Figure 3 It is a schematic diagram of a partial cross-sectional connection structure between the dust removal box and the filter plate of the present invention.

[0020] Figure 4 It is a schematic diagram of the cooperation structure between the filter plate and the slag collection hopper of the present invention.

[0021] Figure 5 It is a partial schematic diagram of the cooperation structure between the filter plate and the support assembly of the present invention.

[0022] Figure 6 It is a schematic diagram of the structure of the filter plate of the present invention.

[0023] Figure 7 It is a schematic diagram of the structure of the rotating rod of the present invention.

[0024] Figure 8 It is a schematic diagram of the structure of the second scraper of the present invention.

[0025] Figure 9 It is a schematic diagram of the structure of the connecting rod of the present invention.

[0026] Figure 10 Schematic diagram of the second scraper of the present invention; Figure 11 Schematic diagram of the support assembly of the present invention.

[0027] Figure 12 is Figure 11 Enlarged structural diagram at position A in

[0028] Figure 13 Schematic plan view of the present invention.

[0029] In the figure: 1, fixed frame; 2, dust removal box; 3, heat exchange box; 4, denitration main body; 5, motor; 6, connecting rod; 7, first scraper; 8, limit block; 9, limit card slot; 10, rotating rod; 11, movable slot; 12, second scraper; 13, mounting plate; 14, fixed ball; 15, receiving groove; 16, moving groove; 17, filter plate; 18, electric telescopic rod; 19, extension plate; 20, backing plate; 21, card slot; 22, slag collection hopper; 23, block; 24, notch groove; 25, limit ball; 26, elastic plate; 27, through hole; 28, positioning column; 29, positioning hole; 30, inlet smoke valve; 31, connecting valve; 32, denitration valve; 33, exhaust smoke valve; 34, inlet water valve; 35, outlet water valve. Specific embodiments

[0030] In order to clearly and completely describe the objectives, technical solutions of the present invention, and make the advantages more clearly understood, the following further details the embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some but not all of the embodiments of the present invention, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0031] Example 1, please refer to Figures 1 to 13, the present invention provides a technical solution: a boiler denitration device that is easy to install, including a dust removal box 2, the dust removal box 2 is fixedly connected to one side of the top of the fixed frame 1, and a heat exchange box 3 and a denitration body 4 are fixedly connected to the top of the fixed frame 1. A support assembly is rotatably connected to the inner side surface of the dust removal box 2, one end of the support assembly passes through the filter plate 17, a limiting ball 25 is fixed to the side surface of the filter plate 17, and one end of the support assembly is in movable contact with the limiting ball 25; an electric telescopic rod 18 is fixedly connected to the top of the fixed frame 1, a top holding assembly is fixed to the telescopic end of the electric telescopic rod 18, a slag receiving hopper 22 is movably inserted into the top of the top holding assembly, and the slag receiving hopper 22 is located in the notch groove 24, and the notch groove 24 is opened at the bottom of the dust removal box 2; when the filter plate 17 filters impurities in the flue gas, it is ensured that the longer side plates of the first scraper 7 and the second scraper 12 are in contact with the limiting ball 25. Therefore, there is a gap between the filter plate 17 and the first scraper 7 and the second scraper 12, and the flue gas can contact the entire filter plate 17, which is convenient for better filtering of the impurities in the flue gas and has a higher filtering efficiency; slide the second scraper 12 in a direction away from the filter plate 17 until one end of the mounting plate 13 disengages from the limiting card slot 9 and the one end of the mounting plate 13 is completely located in the movable slot 11, and the fixed ball 14 is located in the receiving slot 15. At this time, the filter plate 17 loses its limit, and the distance between the connecting rod 6 and one side of the rotating rod 10 is greater than the thickness of the filter plate 17, ensuring that the filter plate 17 can be taken out between the connecting rod 6 and the rotating rod 10, which is convenient for its maintenance.

[0032] Embodiment 2. On the basis of Embodiment 1, a smoke inlet pipe is connected to one side of the dust removal box 2, and a smoke inlet valve is installed on the smoke inlet pipe for easy throttling. The side surfaces of the dust removal box 2 and the heat exchange box 3 are connected through a connecting smoke pipe, and a connecting valve is installed on the connecting smoke pipe for easy throttling. The side surfaces of the heat exchange box 3 and the denitration body 4 are connected through a denitration smoke pipe, and a denitration valve is installed on the denitration smoke pipe for easy throttling. A smoke exhaust pipe is connected to the denitration body 4, and a smoke exhaust valve is arranged on the smoke exhaust pipe for easy throttling. The support assembly includes a connecting rod 6, a first scraper 7, a rotating rod 10, a second scraper 12, a mounting plate 13, and a fixed ball 14. A motor 5 is fixedly connected to the outer side of one side of the dust removal box 2. The rotating end of the motor 5 passes through the inside of the dust removal box 2. The connecting rod 6 is fixed to the rotating end of the motor 5. The connecting rod 6 is a circular rod. A limiting card slot 9 and a moving slot 16 are formed on the outer ring surface of the connecting rod 6. Both the limiting card slot 9 and the moving slot 16 are square plate-shaped slots. The first scraper 7 is sleeved on the outer ring surface of the connecting rod 6. The first scraper 7 is a square plate, and the lengths of the two side plates of the first scraper 7 on both sides of the center of the connecting rod 6 are not equal. A limiting block 8 is fixed in the hole on the side surface of the first scraper 7 through which the connecting rod 6 passes. The limiting block 8 is slidably connected in the moving slot 16. A elastic plate 26 is fixed between the side of the first scraper 7 far from the fixed ball 14 and the side surface of the moving slot 16. One end of the longer side plate of the first scraper 7 is in movable contact with a limiting ball 25. There are two groups of fixed limiting balls 25. The rotating rod 10 is rotatably connected to the side wall of the dust removal box 2. The rotating rod 10 is a circular rod. A receiving groove 15 with a circular groove structure is formed on one side of the rotating rod 10. A movable groove 11 with a square plate-shaped groove structure is formed on the outer ring surface of the rotating rod 10. The second scraper 12 is sleeved on the outer ring surface of the rotating rod 10. The second scraper 12 is a square plate-shaped groove structure. The lengths of the two side plates of the second scraper 12 on both sides of the center of the rotating rod 10 are not equal. The mounting plate 13 is fixedly connected to one side of the second scraper 12, and the mounting plate 13 is slidably connected in the movable groove 11. One end of the mounting plate 13 passes through a through hole 27 and is movably inserted into the limiting card slot 9. The through hole 27 is formed at the center of the side surface of the filter plate 17. One end of the longer side plate of the second scraper 12 is in movable contact with the other group of limiting balls 25. A positioning column 28 is fixedly connected to the inner top of the dust removal box 2. The bottom of the positioning column 28 is movably inserted into a positioning hole 29. The positioning hole 29 is formed at the top of the filter plate 17. The fixed ball 14 is fixed on the surface of the mounting plate 13. The fixed ball 14 is located in the through hole 27. A positioning column 28 is fixedly connected between one side of the mounting plate 13 and one side of the movable groove 11.

[0033] In the present invention, when the filter plate 17 filters impurities in the flue gas, it is ensured that the longer side plates of the first scraper 7 and the second scraper 12 are in contact with the limiting balls 25. Therefore, there is a gap between the filter plate 17 and the first scraper 7 and the second scraper 12, and the flue gas can contact the entire filter plate 17, which is convenient for better filtering of the impurities in the flue gas and has a higher filtering efficiency. Start the motor 5 to drive the connecting rod 6 to rotate. The rotation of the connecting rod 6 drives the first scraper 7 to rotate. Under the holding effect of the elastic plate 26, the first scraper 7 will always be in contact with the surface of the filter plate 17. The shorter side plate of the filter plate 17 can clean the surface between the limit ball 25 and the through hole 27. Since one end of the mounting plate 13 is movably inserted into the limit card slot 9, the rotation of the connecting rod 6 can drive the rotating rod 10 to rotate. The second scraper 12 is also always in contact with the surface of the filter plate 17 under the holding effect of the positioning column 28. The cleaning effect of the second scraper 12 is the same as that of the first scraper 7. The impurities after cleaning will fall into the slag collection hopper 22. The fixed ball 14 rotates in the through hole 27 to ensure that the filter plate 17 does not move. The fixed ball 14 plays a role in limiting the filter plate 17.

[0034] Embodiment 3, on the basis of Embodiment 2, the holding assembly includes an extension plate 19 and a backing plate 20. The extension plate 19 is in an "L"-shaped plate structure. The backing plate 20 is fixed to the telescopic end of the electric telescopic rod 18. The backing plate 20 is a square plate. The backing plate 20 is fixed to the top end of the extension plate 19. A card slot 21 is opened on the bottom surface of the backing plate 20. The slag collection hopper 22 is in a semi-circular cavity structure. The bottom of the filter plate 17 is located in the slag collection hopper 22. The notch groove 24 is a square plate-shaped groove. The slag collection hopper 22 is in contact with the notch groove 24. A card block 23 is integrally formed at the bottom of the slag collection hopper 22. The card block 23 is movably inserted into the card slot 21. Damping protrusions are provided on the surfaces of the card block 23 and the card slot 21 that are in contact with each other.

[0035] In the present invention, start the electric telescopic rod 18 to drive the extension plate 19 to move closer to the ground until the slag collection hopper 22 disengages from the notch groove 24 and a space is left to remove and install the filter plate 17 from the dust removal box 2. Slide the second scraper 12 in a direction away from the filter plate 17 until one end of the mounting plate 13 disengages from the limit card slot 9 and the one end of the mounting plate 13 is completely located in the movable slot 11. The fixed ball 14 is located in the receiving groove 15. At this time, the filter plate 17 loses its limit. Please refer to Figure 5 , the distance between one side of the connecting rod 6 and the rotating rod 10 is greater than the thickness of the filter plate 17 to ensure that the filter plate 17 can be removed between the connecting rod 6 and the rotating rod 10, which is convenient for its maintenance; On the contrary, install the filter plate 17 and place it between the connecting rod 6 and the rotating rod 10, so that the positioning column 28 is inserted into the positioning hole 29. At this time, the through hole 27 is aligned with the fixed ball 14. Under the holding effect of the positioning column 28, the second scraper 12 will move closer to the filter plate 17. One end of the mounting plate 13 passes through the through hole 27 and is movably inserted into the limit card slot 9. The fixed ball 14 is located in the through hole 27. Then start the electric telescopic rod 18 to drive the extension plate 19 and the backing plate 20 as a whole to move closer to the filter plate 17 until the slag collection hopper 22 is located in the notch groove 24.

[0036] Working principle and usage process of the present invention: Start the motor 5 to drive the connecting rod 6 to rotate. The rotation of the connecting rod 6 drives the first scraper 7 to rotate. Under the supporting effect of the elastic plate 26, the first scraper 7 will always be in contact with the surface of the filter plate 17. There is a gap between the filter plate 17 and the first scraper 7 and the second scraper 12, so that the flue gas can contact the entire filter plate 17, which is convenient for better filtering of the impurities in the flue gas, and the filtering efficiency is higher. The shorter side plate of the filter plate 17 can clean the surface between the limit ball 25 and the through hole 27. Since one end of the mounting plate 13 is movably inserted into the limit card slot 9, the rotation of the connecting rod 6 can drive the rotating rod 10 to rotate. The second scraper 12 is also always in contact with the surface of the filter plate 17 under the supporting effect of the positioning column 28. The cleaning effect of the second scraper 12 is the same as that of the first scraper 7. The cleaned impurities will fall into the slag collection hopper 22. Start the electric telescopic rod 18 to drive the slag collection hopper 22 to move away from the dust removal box 2 until the staff can remove the slag collection hopper 22 from the backing plate 20. After the slag collection hopper 22 is removed, recycle the impurities in the slag collection hopper 22. Start the electric telescopic rod 18 to drive the extension plate 19 to move closer to the ground until the slag collection hopper 22 disengages from the notch groove 24 and leaves a space for removing and installing the filter plate 17 from the dust removal box 2. Slide the second scraper 12 away from the filter plate 17 until one end of the mounting plate 13 disengages from the limit card slot 9 and the one end of the mounting plate 13 is completely located in the movable slot 11, and the fixed ball 14 is located in the receiving groove 15. At this time, the filter plate 17 loses its limit. Please refer to Figure 5 , the distance between the connecting rod 6 and one side of the rotating rod 10 is greater than the thickness of the filter plate 17, ensuring that the filter plate 17 can be taken out between the connecting rod 6 and the rotating rod 10, which is convenient for its maintenance.

[0037] Open the smoke inlet valve 30, connection valve 31, denitration valve 32, smoke exhaust valve 33, water inlet valve 34, and water outlet valve 35. First, the flue gas enters the dust removal box 2 through the smoke inlet pipe. The filter plate 17 filters the impurities in the flue gas, and then enters the heat exchange box 3 through the connecting pipe. (There are a water inlet pipe and a water outlet pipe connected to the top and bottom of the heat exchange box 3, and a spiral pipe is connected between the water inlet pipe and the water outlet pipe. The water inlet pipe and the water outlet pipe are respectively installed on the water inlet valve 34 and the water outlet valve 35. The water inlet valve 34 and the water outlet valve 35 are convenient for throttling. There is a clamp fixed on the spiral pipe and is fixed to the inner wall of the heat exchange box 3 through the clamp.) Part of the water entering the boiler enters the spiral pipe through the water inlet pipe, and fully exchanges heat with the filtered flue gas through the spiral pipe, and then converges with the water entering the boiler through the water outlet pipe. Then the flue gas enters the denitration body 4 through the denitration flue pipe for denitration, and the denitrated flue gas is discharged through the smoke exhaust pipe; the smoke inlet valve 30, connection valve 31, denitration valve 32, smoke exhaust valve 33, water inlet valve 34, and water outlet valve 35 are all conventional devices well-known to those skilled in the art and purchased on the market. The models of the smoke inlet valve 30, connection valve 31, denitration valve 32, and smoke exhaust valve 33 are all D341X-10_16C, and the models of 34 and 35 are both DMF-Z-25. In this patent, we only use them and do not improve their structures and functions. Their setting methods, installation methods, and electrical connection methods can be debugged and operated by those skilled in the art as long as they follow the requirements of their operation manuals, and will not be elaborated here.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A boiler denitration device convenient for installation, comprising a dust removal box (2), the dust removal box (2) is fixedly connected to one side of the top of a fixed frame (1), a heat exchange box (3) and a denitration body (4) are fixedly connected to the top of the fixed frame (1), and it is characterized in that: A support assembly is rotatably connected to the inner side surface of the dust removal box (2). One end of the support assembly passes through the filter plate (17). A limiting ball (25) is fixed to the side surface of the filter plate (17). One end of the support assembly is in movable contact with the limiting ball (25). An electric telescopic rod (18) is fixedly connected to the top of the fixed frame (1). A top holding assembly is fixed to the telescopic end of the electric telescopic rod (18). A slag collection hopper (22) is movably inserted into the top of the top holding assembly, and the slag collection hopper (22) is located in the notch groove (24). The notch groove (24) is opened at the bottom of the dust removal box (2).

2. The boiler denitration equipment that is convenient for installation according to claim 1, wherein: One side of the dust removal box (2) is communicated with a smoke inlet pipe. A smoke inlet valve (30) is installed on the smoke inlet pipe. The dust removal box (2) and the heat exchange box (3) are communicated through a connecting smoke pipe. And a connecting valve (31) is installed on the connecting smoke pipe. The heat exchange box (3) and the denitration body (4) are communicated through a denitration smoke pipe. A denitration valve (32) is installed on the denitration smoke pipe. A smoke exhaust pipe is communicated with the denitration body (4). A smoke exhaust valve (33) is arranged on the smoke exhaust pipe.

3. The boiler denitration equipment convenient for installation according to claim 1, wherein: The support assembly includes a connecting rod (6), a first scraper (7), a rotating rod (10), a second scraper (12), a mounting plate (13), and a fixed ball (14). A motor (5) is fixedly connected to the outer side of one side of the dust removal box (2). The rotating end of the motor (5) passes through the inside of the dust removal box (2). The connecting rod (6) is fixed to the rotating end of the motor (5). The connecting rod (6) is a circular rod. A limiting card slot (9) and a moving slot (16) are opened on the outer ring surface of the connecting rod (6). Both the limiting card slot (9) and the moving slot (16) are square plate-shaped slots.

4. The boiler denitration equipment convenient for installation according to claim 3, wherein: The first scraper (7) is sleeved on the outer ring surface of the connecting rod (6). The first scraper (7) is a square plate. And the lengths of the two side plates of the first scraper (7) on both sides of the center of the connecting rod (6) are not equal. A limiting block (8) is fixed in the hole on the side surface of the first scraper (7) through which the connecting rod (6) passes. The limiting block (8) is slidably connected in the moving slot (16). A elastic plate (26) is fixed between the side of the first scraper (7) far from the fixed ball (14) and the side surface of the moving slot (16). One end of the longer side plate of the first scraper (7) is in movable contact with the limiting ball (25). Two groups of limiting balls (25) are fixed.

5. The boiler denitration equipment convenient for installation according to claim 3, characterized in that: The rotating rod (10) is rotatably connected to the side wall of the dust removal box (2). The rotating rod (10) is a circular rod. A receiving groove (15) with a circular groove structure is opened on one side of the rotating rod (10). A movable groove (11) with a square plate-shaped groove structure is opened on the outer ring surface of the rotating rod (10). The second scraper (12) is sleeved on the outer ring surface of the rotating rod (10). The second scraper (12) has a square plate-shaped groove structure. The lengths of the two side plates of the second scraper (12) on both sides of the center of the rotating rod (10) are not equal.

6. The denitration equipment for boilers that is easy to install according to claim 3, characterized in that: The mounting plate (13) is fixedly connected to one side of the second scraper (12), and the mounting plate (13) is slidably connected in the movable slot (11). One end of the mounting plate (13) passes through the through port (27) and is movably inserted into the limit card slot (9). The through port (27) is opened at the center of the side surface of the filter plate (17). One end of the longer side plate of the second scraper (12) is in movable contact with another group of limit balls (25). A positioning column (28) is fixedly connected to the inner top of the dust removal box (2). The bottom of the positioning column (28) is movably inserted into the positioning hole (29). The positioning hole (29) is opened at the top of the filter plate (17).

7. The boiler denitration equipment convenient for installation according to claim 3, characterized in that: The fixed ball (14) is fixed on the surface of the mounting plate (13). The fixed ball (14) is located in the through port (27). A positioning column (28) is fixedly connected between one side of the mounting plate (13) and one side of the movable slot (11).

8. The convenient-to-install boiler denitration equipment according to claim 1, characterized in that: The holding component includes an extension plate (19) and a backing plate (20). The extension plate (19) is in an "L"-shaped plate structure. The backing plate (20) is fixed to the telescopic end of the electric telescopic rod (18). The backing plate (20) is a square plate. The backing plate (20) is fixed to the top end of the extension plate (19). A card slot (21) is opened on the bottom surface of the backing plate (20).

9. The boiler denitration equipment convenient for installation according to claim 1, characterized in that: The slag collecting hopper (22) is in a semi-circular cavity structure. The bottom of the filter plate (17) is located in the slag collecting hopper (22). The notch groove (24) is a square plate-shaped groove. The slag collecting hopper (22) is attached to the notch groove (24).

10. The boiler denitration equipment convenient for installation according to claim 9, characterized in that: A clamping block (23) is integrally formed at the bottom of the slag collecting hopper (22). The clamping block (23) is movably inserted into the card slot (21). Damping protrusions are provided on the surfaces of the clamping block (23) and the card slot (21) that are in contact with each other.

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