A calcination flue gas denitration and desulfurization integrated device

Abstract

This invention discloses an integrated denitrification and desulfurization device for calcination flue gas, relating to the field of flue gas denitrification and desulfurization technology. It includes a tank body with a filter layer fixedly installed inside. Below the filter layer is a denitrification zone, and above the filter layer is a desulfurization zone. A hollow mixing cylinder is rotatably arranged in the denitrification zone, and discharge cylinders are evenly arranged on the mixing cylinder, with the end of the discharge cylinder facing away from the mixing cylinder open. A cleaning mechanism is provided at the top of the mixing cylinder. A rotating drum is evenly arranged in a ring shape in the desulfurization zone, with high-efficiency activated carbon placed inside the rotating drum for adsorbing harmful gases. A cleaning and maintenance mechanism and a vacuum reduction mechanism are provided on the outside of the tank body. The cleaning and maintenance mechanism is used to clean and unclog the discharge cylinders; the vacuum reduction mechanism is used to desorb the activated carbon. This invention can perform integrated treatment of flue gas, achieving the removal and separation of harmful gases in the flue gas, and can realize automatic maintenance operations in the later stages, reducing the intensity of manual maintenance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flue gas denitration and desulfurization, in particular to a calcination flue gas denitration and desulfurization integrated device. BACKGROUND

[0002] Calcination flue gas contains a large amount of harmful gases, especially nitrogen oxides and sulfur dioxide, which are harmful to the environment and human health. Flue gas denitration and desulfurization technology is mainly used to treat flue gas generated by coal-fired power plants, industrial boilers, etc., to reduce the emission of harmful gases. Therefore, denitration and desulfurization equipment is an indispensable facility in modern industrial environmental protection engineering construction. There are various flue gas denitration and desulfurization processes, each with its own advantages and disadvantages. For example, denitration technologies include selective catalytic reduction and selective non-catalytic reduction; desulfurization technologies include wet desulfurization and dry desulfurization; as environmental protection requirements improve, denitration and desulfurization equipment is continuously upgraded and developed; existing denitration and desulfurization equipment can complete the corresponding separation operation, but does not have integrated operation capability, and subsequent maintenance operations are not convenient. Based on this, the present application provides a denitration and desulfurization integrated device that can perform integrated treatment on flue gas, separate harmful gases in flue gas, and automatically maintain the device in the later stage, reducing the intensity of manual maintenance. SUMMARY

[0003] To solve the above technical problems, the present application can perform integrated treatment on flue gas, separate harmful gases in flue gas, and automatically maintain the device in the later stage, reducing the intensity of manual maintenance.

[0004] The technical scheme used in the present application is as follows: a calcination flue gas denitration and desulfurization integrated device, comprising a tank body, a filter layer is fixedly arranged inside the tank body for filtering impurities; a denitration zone is below the filter layer, and a desulfurization zone is above the filter layer; a mixing cylinder in a hollow structure is rotatably arranged in the denitration zone, and discharge cylinders are uniformly arranged on the mixing cylinder, the end of the discharge cylinder away from the mixing cylinder is in an open state for releasing ammonia reducing agent; a cleaning mechanism is arranged at the top end of the mixing cylinder for cleaning impurities on the filter layer; tumble cylinders are uniformly arranged in the desulfurization zone in a ring shape, high-efficiency activated carbon is placed inside the tumble cylinders for adsorbing harmful gases; a foreign matter removal and maintenance mechanism and a vacuum reduction mechanism are arranged outside the tank body, the foreign matter removal and maintenance mechanism is used for removing and dredging the discharge cylinders; and the vacuum reduction mechanism is used for desorbing the activated carbon.

[0005] Furthermore, a flue gas transmission valve is provided at the bottom outer side of the tank body for introducing flue gas; an inlet box is fixedly provided at the bottom of the tank body, and a motor is fixedly provided on the inlet box. The motor is used to drive the mixing cylinder. An air inlet groove is opened at the bottom of the mixing cylinder. The bottom of the mixing cylinder rotates and is connected to the inlet box; a cleaning gas valve and a reducing agent valve are respectively connected to the side of the inlet box. The reducing agent valve is used to control the transmission of ammonia reducing agent, and the cleaning gas valve is used to control the transmission of cleaning gas.

[0006] Furthermore, the discharge cylinder has an array of discharge holes on its circumference for releasing ammonia reducing agent from different directions and for mixing the flue gas and ammonia reducing agent.

[0007] Furthermore, the cleaning mechanism includes a mounting ball fixedly installed at the top of the mixing drum, a lifting cylinder fixedly installed inside the mounting ball, a motor box fixedly installed on the telescopic rod of the lifting cylinder, a drive motor fixedly installed inside the motor box, and a cleaning roller rotatably installed on the motor box, the drive motor being used to drive the cleaning roller.

[0008] Furthermore, the impurity removal and maintenance mechanism includes a control cylinder one fixedly mounted on the outside of the tank body. A mounting frame is fixedly mounted on the telescopic rod of the control cylinder one. Docking cylinders are fixedly mounted and evenly arranged on the mounting frame. Mating holes are evenly opened on the outside of the tank body. The ends of the docking cylinders mate with the mating holes on the tank body. A control cylinder two is fixedly mounted on the mounting frame. A push frame is fixedly mounted on the telescopic rod of the control cylinder two. Sleeves are fixedly mounted and evenly arranged on the push frame. The sleeves slide and fit inside the docking cylinders. An electromagnetic sliding shaft is provided at one end of the sleeve. The electromagnetic sliding shaft moves radially to remove impurities and clear the discharge cylinder. A push electric cylinder is fixedly mounted at the other end of the sleeve. A push plate is fixedly mounted on the telescopic rod of the push electric cylinder. The push plate slides and fits inside the sleeve.

[0009] Furthermore, an installation cylinder is fixedly installed in the desulfurization zone inside the tank. A fixed plate is fixedly connected to the bottom of the installation cylinder. A second motor is fixedly installed inside the installation cylinder. A turntable is fixedly installed on the output shaft of the second motor. Assembly shafts are rotatably installed and evenly arranged on the turntable. A transmission gear is fixedly installed on the assembly shaft. The transmission gear meshes with the fixed plate. An electromagnetic fixing shaft is provided at the end of the assembly shaft for fixing the tilting drum.

[0010] Furthermore, the circumference of the turning roller is uniformly provided with adsorption holes, and both ends of the turning roller are respectively fixedly connected with cross-shaped mating rods. The cross-shaped mating rods are provided with fixing holes. One end of the cross-shaped mating rod is installed on the assembly shaft and is fixed by engaging with the fixing hole through an electromagnetic fixing shaft. The other end of the cross-shaped mating rod can be engaged with a vacuum reduction mechanism for transfer.

[0011] Furthermore, the vacuum reduction mechanism includes a vacuum box fixedly mounted on the tank body, a vacuum pump mounted on the vacuum box, a switch opening on the outside of the tank body, an opening and closing cylinder fixedly mounted on the outside of the tank body, and a baffle plate one and a baffle plate two fixedly mounted on the telescopic rod of the opening and closing cylinder. The baffle plate one is used to block the opening and closing port on the outside of the tank body, and the baffle plate two is used to block the end of the vacuum box. A transfer cylinder is fixedly mounted on the vacuum box, and a transfer seat is fixedly mounted on the telescopic rod of the transfer cylinder. The transfer seat is located inside the vacuum box, and an electromagnetic fixing shaft two is mounted on the transfer seat. The transfer seat is installed in conjunction with a fixing hole, and the electromagnetic fixing shaft two is in conjunction with the fixing hole to fix and transfer the turning roller.

[0012] The beneficial effects of this invention compared with the prior art are: (1) This invention can perform vacuum treatment on activated carbon. Under vacuum conditions, sulfur dioxide will desorb from the activated carbon. After the vacuum is restored, the activated carbon can be reused; (2) The mixing cylinder releases ammonia reducing agent in motion and also stirs the mixed gas to improve the reaction efficiency; (3) The cleaning roller cleans and maintains the surface of the filter layer, removes the impurities attached to the filter layer, and improves the filtration effect of the filter layer; (4) The sleeve extends into the tank and is fitted on the outside of the discharge cylinder. By moving radially through the electromagnetic sliding shaft, the discharge hole on the discharge cylinder can be cleared and impurities removed. Then, the cleaning gas is transmitted through the cleaning gas valve. The gas is released through the discharge cylinder to blow the detached impurities into the sleeve. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 This is a bottom view of the overall structure of the present invention.

[0015] Figure 3 This is a schematic diagram of the installation structure of the impurity removal and maintenance mechanism of the present invention.

[0016] Figure 4 This is a schematic diagram of the installation structure of the docking cylinder of the present invention.

[0017] Figure 5 This is a schematic diagram of the sleeve installation structure of the present invention.

[0018] Figure 6 This is a schematic diagram of the internal structure of the tank body of the present invention.

[0019] Figure 7 This is a schematic diagram of the mixing cylinder installation structure of the present invention.

[0020] Figure 8 This is a schematic diagram of the mounting cylinder structure of the present invention.

[0021] Figure 9 This is a schematic diagram of the turntable installation structure of the present invention.

[0022] Figure 10 This is a schematic diagram of the tilting roller structure of the present invention.

[0023] Figure 11 This is a schematic diagram of the vacuum reduction mechanism of the present invention.

[0024] Figure 12 This is a schematic diagram of the internal structure of the vacuum chamber of the present invention.

[0025] Attached reference numerals: 1-Tank body; 2-Flue gas transmission valve; 3-Motor 1; 4-Inlet box; 5-Reducing agent valve; 6-Clean gas valve; 7-Control cylinder 1; 8-Mounting bracket; 9-Connecting cylinder; 10-Control cylinder 2; 11-Push bracket; 12-Sleeve; 13-Electromagnetic sliding shaft; 14-Pushing electric cylinder; 15-Push plate; 16-Mixing cylinder; 17-Inlet slot; 18-Discharge cylinder; 19-Filter layer; 20-Mounting ball; 21-Lifting oil cylinder 21-Cylinder; 22-Clearing roller; 23-Motor box; 24-Mounting cylinder; 25-Fixing disc; 26-Tilting roller; 27-Motor II; 28-Turntable; 29-Transmission gear; 30-Assembly shaft; 31-Electromagnetic fixing shaft I; 32-Cross mating rod; 33-Fixing hole; 34-Vacuum box; 35-Vacuum pump; 36-Opening and closing cylinder; 37-Baffle I; 38-Baffle II; 39-Transfer cylinder; 40-Transfer seat; 41-Electromagnetic fixing shaft II. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0027] Example: Figures 1 to 12 As shown, an integrated denitrification and desulfurization device for calcination flue gas includes a tank 1. A filter layer 19 is fixedly installed inside the tank 1 for filtering impurities. Below the filter layer 19 is a denitrification zone, and above the filter layer 19 is a desulfurization zone. A hollow mixing cylinder 16 is rotatably arranged in the denitrification zone. Discharge cylinders 18 are evenly arranged on the mixing cylinder 16, with the end of the discharge cylinder 18 facing away from the mixing cylinder 16 open for releasing ammonia reducing agent. A cleaning mechanism is provided at the top of the mixing cylinder 16 for removing impurities from the filter layer 19. A rotating drum 26 is evenly arranged in a ring shape in the desulfurization zone. High-efficiency activated carbon is placed inside the rotating drum 26 for adsorbing harmful gases. A cleaning and maintenance mechanism and a vacuum reduction mechanism are provided on the outside of the tank 1. The cleaning and maintenance mechanism is used to clean and unclog the discharge cylinder 18; the vacuum reduction mechanism is used to desorb the activated carbon.

[0028] like Figure 2 As shown, a flue gas transmission valve 2 is provided at the bottom outer side of the tank body 1 to remove moisture; an inlet box 4 is fixedly provided at the bottom of the tank body 1, and a motor 3 is fixedly provided on the inlet box 4. The motor 3 is used to drive the mixing cylinder 16. An air inlet groove 17 is opened at the bottom of the mixing cylinder 16. The bottom of the mixing cylinder 16 rotates and is connected to the inlet box 4; a clean gas valve 6 and a reducing agent valve 5 are respectively connected to the side of the inlet box 4. The reducing agent valve 5 is used to control the transmission of ammonia reducing agent, and the clean gas valve 6 is used to control the transmission of clean gas.

[0029] like Figure 6 and Figure 7 As shown, the discharge cylinder 18 has an array of discharge holes on its circumference for releasing ammonia reducing agent from different directions and for mixing the flue gas and ammonia reducing agent. The cleaning mechanism includes a mounting ball 20 fixedly installed at the top of the mixing cylinder 16. A lifting cylinder 21 is fixedly installed inside the mounting ball 20. A motor box 23 is fixedly installed on the telescopic rod of the lifting cylinder 21. A drive motor is fixedly installed inside the motor box 23. A cleaning roller 22 is rotatably installed on the motor box 23. The drive motor is used to drive the cleaning roller 22.

[0030] like Figure 3 , Figure 4 and Figure 5 As shown, the impurity removal and maintenance mechanism includes a control cylinder 7 fixedly installed on the outside of the tank body 1. A mounting frame 8 is fixedly installed on the telescopic rod of the control cylinder 7. A docking cylinder 9 is fixedly installed and evenly arranged on the mounting frame 8. Mating holes are evenly opened on the outside of the tank body 1. The end of the docking cylinder 9 mates with the mating holes on the tank body 1. A control cylinder 10 is fixedly installed on the mounting frame 8. A pusher 11 is fixedly installed on the telescopic rod of the control cylinder 10. A sleeve 12 is fixedly installed and evenly arranged on the pusher 11. The sleeve 12 slides and fits inside the docking cylinder 9. An electromagnetic sliding shaft 13 is provided at one end of the sleeve 12. The electromagnetic sliding shaft 13 moves radially and removes impurities from the discharge cylinder 18. A pusher cylinder 14 is fixedly installed at the other end of the sleeve 12. A pusher plate 15 is fixedly installed on the telescopic rod of the pusher cylinder 14. The pusher plate 15 slides and fits inside the sleeve 12.

[0031] like Figures 8 to 10As shown, an installation cylinder 24 is fixedly installed in the desulfurization zone inside the tank 1. A fixed plate 25 is fixedly connected to the bottom end of the installation cylinder 24. A second motor 27 is fixedly installed inside the installation cylinder 24. A turntable 28 is fixedly installed on the output shaft of the second motor 27. Assembly shafts 30 are rotatably installed and evenly arranged on the turntable 28. A transmission gear 29 is fixedly installed on the assembly shaft 30 and meshes with the fixed plate 25. An electromagnetic fixing shaft 31 is provided at the end of the assembly shaft 30 for fixing the turning roller 26. Adsorption holes are evenly opened on the circumference of the turning roller 26. Cross-shaped mating rods 32 are fixedly connected to both ends of the turning roller 26. Fixing holes 33 are opened on the cross-shaped mating rods 32. One end of the cross-shaped mating rod 32 is installed on the assembly shaft 30 and is fixed by the electromagnetic fixing shaft 31 and the fixing hole 33. The other end of the cross-shaped mating rod 32 can be used with the vacuum reduction mechanism for transfer.

[0032] like Figure 11 and Figure 12 As shown, the vacuum reduction mechanism includes a vacuum box 34 fixedly mounted on the tank body 1, a vacuum pump 35 mounted on the vacuum box 34, a switch opening on the outside of the tank body 1, and an opening and closing cylinder 36 fixedly mounted on the outside of the tank body 1. A baffle 37 and a baffle 38 are fixedly mounted on the telescopic rod of the opening and closing cylinder 36. The baffle 37 is used to block the opening and closing port on the outside of the tank body 1, and the baffle 38 is used to block the end of the vacuum box 34. A transfer cylinder 39 is fixedly mounted on the vacuum box 34, and a transfer seat 40 is fixedly mounted on the telescopic rod of the transfer cylinder 39. The transfer seat 40 is located inside the vacuum box 34, and an electromagnetic fixing shaft 41 is mounted on the transfer seat 40. The transfer seat 40 is installed in conjunction with the fixing hole 33, and the rotating roller 26 is fixedly transferred by the electromagnetic fixing shaft 41 engaging with the fixing hole 33.

[0033] Operating principle: Flue gas is transmitted to tank 1 through flue gas transmission valve 2. Ammonia reducing agent is introduced through reducing agent valve 5. The ammonia reducing agent is transmitted through inlet box 4, inlet trough 17, mixing cylinder 16 and discharge cylinder 18, and finally released through discharge cylinder 18. The mixed gas undergoes denitrification treatment in the denitrification zone, that is, the ammonia reducing agent reduces nitrogen oxides to nitrogen and water. Specifically, motor 3 drives the mixing cylinder 16 to rotate. The mixing cylinder 16 releases the ammonia reducing agent in a moving manner, and at the same time, it stirs the mixed gas to improve the reaction efficiency.

[0034] When the denitrified flue gas passes through the mixing cylinder 16, the mixing cylinder 16 can filter solid impurities in the flue gas. Furthermore, the filter layer 19 can be maintained and cleaned periodically. Specifically, the mixing cylinder 16 rotates, the lifting cylinder 21 controls the cleaning roller 22 to abut against the filter layer 19, and the drive motor inside the motor box 23 drives the cleaning roller 22 to rotate, so that the cleaning roller 22 cleans and maintains the surface of the filter layer 19, removes the impurities attached to the filter layer 19, and improves the filtration effect of the filter layer 19.

[0035] Furthermore, after long-term use, impurities in the flue gas will continuously accumulate on the discharge cylinder 18, causing blockage. The pusher 11 can be moved by controlling the second hydraulic cylinder 10, and the sleeve 12 extends into the inside of the tank 1, so that the sleeve 12 is fitted on the outside of the discharge cylinder 18. The discharge hole on the discharge cylinder 18 can be cleared and impurities removed by the radial movement of the electromagnetic sliding shaft 13. Then, the cleaning gas is transmitted through the cleaning gas valve 6, and the gas is released through the discharge cylinder 18 to blow the detached impurities into the sleeve 12. Then, the mounting bracket 8 can be moved by controlling the first hydraulic cylinder 7, so that the mating cylinder 9 is disengaged from the mating hole on the outside of the tank 1. The pusher plate 15 can be moved by pushing the electric cylinder 14, and the pusher plate 15 can push the impurities inside the sleeve 12 to achieve the cleaning treatment.

[0036] In the desulfurization zone, harmful gases such as sulfur dioxide can be adsorbed by high-efficiency activated carbon. Specifically, the turntable 28 is driven to rotate by motor 27, and the transmission gear 29 meshes with the fixed disk 25, causing the turning drum 26 to rotate on its own axis while revolving around the central axis. The activated carbon inside the turning drum 26 can tumble and continuously come into contact with the flowing flue gas, thereby increasing the contact opportunities with pollutants. The activated carbon particles can be continuously redistributed and turned, avoiding the situation of local adsorption saturation. As the activated carbon particles continue to move, the unsaturated areas will be exposed again, further enhancing its adsorption capacity.

[0037] After a certain period of use, the adsorption capacity of activated carbon decreases. It can be treated by vacuum. Under vacuum, sulfur dioxide will desorb from the activated carbon. After the vacuum is restored, the activated carbon can be reused. Specifically, the opening and closing cylinder 36 controls the movement of baffle 1 37 and baffle 2 38 to switch the blocking state. The transfer cylinder 39 controls the transfer seat 40 to move into the tank 1. The transfer seat 40 cooperates with the cross-shaped rod 32 at one end of the turning roller 26. The electromagnetic fixing shaft 2 41 cooperates with the fixing hole 33 for fixation. At the same time, the electromagnetic fixing shaft 1 31 releases the fixation on the end of the turning roller 26, and the turning roller 26 is transferred to the vacuum box 34 for vacuum treatment, so as to realize the recycling of activated carbon.

Claims

1. An integrated denitrification and desulfurization device for calcination flue gas, comprising a tank (1), characterized in that: A filter layer (19) is fixedly installed inside the tank (1) for filtering impurities; the denitrification zone is below the filter layer (19), and the desulfurization zone is above the filter layer (19); a hollow mixing cylinder (16) is rotatably installed in the denitrification zone, and an exhaust cylinder (18) is evenly arranged on the mixing cylinder (16). The end of the exhaust cylinder (18) facing away from the mixing cylinder (16) is open for releasing ammonia reducing agent; a cleaning mechanism is installed at the top of the mixing cylinder (16) for removing impurities from the filter layer (19); a rotating drum (26) is evenly arranged in a ring in the desulfurization zone, and high-efficiency activated carbon is placed inside the rotating drum (26) for adsorbing harmful gases; a cleaning and maintenance mechanism and a vacuum reduction mechanism are installed on the outside of the tank (1). The cleaning and maintenance mechanism is used to clean and unclog the exhaust cylinder (18); the vacuum reduction mechanism is used to desorb the activated carbon. The cleaning mechanism includes a mounting ball (20) fixedly installed at the top of the mixing cylinder (16), a lifting cylinder (21) fixedly installed inside the mounting ball (20), a motor box (23) fixedly installed on the telescopic rod of the lifting cylinder (21), a drive motor fixedly installed inside the motor box (23), and a cleaning roller (22) rotatably installed on the motor box (23). The drive motor is used to drive the cleaning roller (22). The impurity removal and maintenance mechanism includes a control cylinder 1 (7) fixedly installed on the outside of the tank body (1), a mounting frame (8) fixedly installed on the telescopic rod of the control cylinder 1 (7), docking cylinders (9) fixedly installed and evenly arranged on the mounting frame (8), mating holes evenly opened on the outside of the tank body (1), the end of the docking cylinder (9) mating with the mating holes on the tank body (1), a control cylinder 2 (10) fixedly installed on the mounting frame (8), and a pusher (11) fixedly installed on the telescopic rod of the control cylinder 2 (10). A sleeve (12) is fixedly installed on the pusher (11) and evenly arranged. The sleeve (12) is slidably fitted inside the docking cylinder (9). An electromagnetic sliding shaft (13) is installed at one end of the sleeve (12). The electromagnetic sliding shaft (13) moves radially and removes impurities from the discharge cylinder (18). A pusher cylinder (14) is fixedly installed at the other end of the sleeve (12). A pusher plate (15) is fixedly installed on the telescopic rod of the pusher cylinder (14). The pusher plate (15) is slidably fitted inside the sleeve (12). An installation cylinder (24) is fixedly installed in the desulfurization zone inside the tank (1). A fixed plate (25) is fixedly connected to the bottom end of the installation cylinder (24). A second motor (27) is fixedly installed inside the installation cylinder (24). A turntable (28) is fixedly installed on the output shaft of the second motor (27). An assembly shaft (30) is rotatably installed and evenly arranged on the turntable (28). A transmission gear (29) is fixedly installed on the assembly shaft (30). The transmission gear (29) meshes with the fixed plate (25). An electromagnetic fixing shaft (31) is provided at the end of the assembly shaft (30) for fixing the turning drum (26). The circumference of the turning roller (26) is evenly provided with adsorption holes. The two ends of the turning roller (26) are respectively fixedly connected with cross-shaped mating rods (32). The cross-shaped mating rods (32) are provided with fixing holes (33). One end of the cross-shaped mating rods (32) is installed on the assembly shaft (30) and is fixed by the electromagnetic fixing shaft (31) and the fixing hole (33). The other end of the cross-shaped mating rods (32) can be used with the vacuum reduction mechanism for transfer. The vacuum reduction mechanism includes a vacuum chamber (34) fixedly mounted on the tank (1), a vacuum pump (35) mounted on the vacuum chamber (34), a switch opening on the outside of the tank (1), and an opening and closing cylinder (36) fixedly mounted on the outside of the tank (1). A baffle one (37) and a baffle two (38) are fixedly mounted on the telescopic rod of the opening and closing cylinder (36). The baffle one (37) is used to block the opening and closing port on the outside of the control tank (1), and the baffle two (38) is used to block the control vacuum. At the end of the box (34); a transfer cylinder (39) is fixedly installed on the vacuum box (34), and a transfer seat (40) is fixedly installed on the telescopic rod of the transfer cylinder (39). The transfer seat (40) is located inside the vacuum box (34), and an electromagnetic fixing shaft (41) is installed on the transfer seat (40). The transfer seat (40) is installed in conjunction with the fixing hole (33), and the rotating roller (26) is fixedly transferred by the electromagnetic fixing shaft (41) in conjunction with the fixing hole (33).

2. The integrated denitrification and desulfurization device for calcination flue gas according to claim 1, characterized in that: A flue gas transmission valve (2) is provided at the bottom outer side of the tank (1) for introducing flue gas; an inlet box (4) is fixedly provided at the bottom of the tank (1), and a motor (3) is fixedly provided on the inlet box (4). The motor (3) is used to drive the mixing cylinder (16). An air inlet groove (17) is opened at the bottom of the mixing cylinder (16). The bottom of the mixing cylinder (16) rotates and is connected to the inlet box (4); a clean gas valve (6) and a reducing agent valve (5) are respectively connected to the side of the inlet box (4). The reducing agent valve (5) is used to control the transmission of ammonia reducing agent, and the clean gas valve (6) is used to control the transmission of clean gas.

3. The integrated denitrification and desulfurization device for calcination flue gas according to claim 1, characterized in that: The discharge cylinder (18) has an array of discharge holes on its circumference for releasing ammonia reducing agent from different directions and for mixing the flue gas and ammonia reducing agent.

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