Flue gas purification device for sintering machine

Abstract

The invention discloses a flue gas purification device for a sintering machine, and relates to the technical field of sintering machines, the flue gas purification device comprises a purification cylinder, the outer side of the purification cylinder is fixedly connected with a gas inlet pipe, one end of the gas inlet pipe penetrates through the inner side of the purification cylinder, and a treatment unit for purifying flue gas of the sintering machine is arranged on the upper side of the gas inlet pipe; an exhaust pipe is fixedly connected to the outer side of the purification barrel and located above the air inlet pipe, a first water pump is fixedly connected to the right side of the purification barrel, a fixing disc is arranged on the inner side of the purification barrel, and a plurality of branch plates are fixedly connected between the fixing disc and the purification barrel. According to the flue gas purification device for the sintering machine, the purification cylinder, the gas inlet pipe, the fixed pipe, the spray head and the first water pump are arranged, the spray head can spray out an alkaline solution conveniently to treat flue gas of the sintering machine, introduced gas can be dispersed conveniently through a rotating rod, a stirring plate, the fixed cylinder, a branch cylinder, a dispersion plate, a first dispersion piece and a second dispersion piece, high-concentration flue gas is evenly distributed, and the service life of the flue gas is prolonged. The flue gas purification effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sintering machines, and specifically to a flue gas purification device for sintering machines. Background Art

[0002] A sintering machine is a key device in the metallurgical industry for sintering ores (such as iron ores), mainly used to make powdery or fine-grained raw materials (such as ore powder, return ore, flux, fuel, etc.) into sintered ore with a certain strength and particle size for use in blast furnace ironmaking. When sintering limestone, a sintering operation is carried out using a sintering machine, and the flue gas discharged from the exhaust pipe of the sintering machine needs to be purified using a purification device to avoid causing external air pollution.

[0003] After retrieval, a Chinese patent with the application number "CN202411540730.0" is specifically a flue gas purification device for a sintering machine, including a desulfurization tower body. An installation frame is fixedly connected to the inner side of the desulfurization tower body. The top of the installation frame is rotatably connected to a hollow rotating column. The top of the hollow rotating column is fixedly connected to a rotating disk. The outer side of the rotating disk is fixedly connected with a connecting rod. The top of the connecting rod and the rotating disk are both fixedly connected with an air outlet pipe. The top of the connecting rod and the rotating disk are both fixedly connected with a blocking component. The bottom of the installation frame is fixedly connected with an inlet flue gas pipe.

[0004] In the original patented technology, the purification of sintering machine flue gas adopts the method of spraying an alkaline solution (such as NaOH or Ca(OH)2 solution). When high-concentration flue gas directly enters the purification device, due to the lack of effective flow equalization measures, the flue gas flow rate and concentration are unevenly distributed in the tower, resulting in insufficient flue gas residence time in some areas, affecting the desulfurization and deacidification efficiency. Due to the disorder of the flue gas flow field, some high-temperature flue gas fails to fully contact the spraying liquid, resulting in too high temperature in some local areas and affecting the chemical reaction efficiency. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a flue gas purification device for a sintering machine, which solves the problem that when high-concentration flue gas is directly discharged into the purification device, the uneven distribution of the flue gas affects the purification effect.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0007] A flue gas purification device for a sintering machine, comprising a purification cylinder. An air inlet pipe is fixedly connected to the outer side of the purification cylinder. One end of the air inlet pipe passes through the inner side of the purification cylinder, and a processing unit for purifying the flue gas of the sintering machine is arranged above the air inlet pipe. An exhaust pipe is fixedly connected to the outer side of the purification cylinder and above the air inlet pipe. A first water pump is fixedly connected to the right side of the purification cylinder. A fixed disk is arranged inside the purification cylinder. A plurality of branch plates are fixedly connected between the fixed disk and the purification cylinder. Two bottom blocks are fixedly connected to the lower side of the branch plate. A fixed pipe is fixedly connected between the two bottom blocks. A plurality of spray heads are fixedly connected to the lower side of the fixed pipe. A conveying pipe is fixedly connected to the upper side of each of the plurality of fixed pipes. The upper end of the conveying pipe is fixedly connected to a first annular pipe. A connecting pipe is fixedly connected between the first annular pipe and the first water pump. The processing unit includes a plurality of fixed rods. A support disk is fixedly connected to the outer side of the fixed rod. A fixed cylinder is fixedly connected to the upper side of the support disk. A uniform component and a cooling component are arranged on the outer side of the fixed cylinder.

[0008] Preferably, the air inlet pipe is fixedly connected to the support disk. A plurality of branch cylinders are fixedly connected to the upper side of the support disk and inside the fixed cylinder. A plurality of second dispersion plates are fixedly connected to the upper side of the branch cylinder. A stable disk is fixedly connected to the upper side of the second dispersion plate. A rotating shaft is rotatably connected to the upper side of the stable disk. The lower end of the rotating shaft passes through the lower side of the stable disk, and a plurality of dispersion plates are fixedly connected to the outer side of the rotating shaft. A plurality of dispersion holes are formed in the outer side of the dispersion plate. A gear is fixedly connected to the upper end of the rotating shaft. A bottom frame is fixedly connected to the lower end of the rotating rod. A toothed ring meshing with the gear is fixedly connected to the outer side of the bottom frame. A branch pipe is fixedly connected between the plurality of branch cylinders and the support disk. The branch pipe is communicated with the air inlet pipe. A plurality of stirring plates are fixedly connected to the outer side of the rotating rod and above the bottom frame.

[0009] Preferably, a top pipe is fixedly connected to the upper side of the fixed cylinder. A plurality of first dispersion plates are fixedly connected to the upper side of the top pipe. A top disk is fixedly connected to the upper side of the first dispersion plate.

[0010] Preferably, the cooling component includes a plurality of cooling pipes. All the cooling pipes are fixedly connected to the inner side of the fixed cylinder. The upper end of the cooling pipe is fixedly connected to a third annular pipe. A water outlet pipe is fixedly connected to the lower side of the third annular pipe. The lower ends of the water outlet pipe and the cooling pipe both pass through the lower side of the support disk. The lower end of the cooling pipe is fixedly connected to a second annular pipe. A second water pump is fixedly connected to the inner side of the purification cylinder. An installation pipe is fixedly connected between the second water pump and the second annular pipe.

[0011] Preferably, an activated carbon plate is fixedly connected to the outer side of the fixed cylinder. The uniform component includes a fixed ring which is fixedly connected to the outer side of the fixed cylinder and located above the activated carbon plate. A chute is formed on the outer side of the fixed ring, and a plurality of guide blocks are slidably connected to the inner side of the chute. Fixed blocks I are fixedly connected to the outer sides of the plurality of guide blocks. An inclined plate is rotatably connected to the outer side of the fixed block I. A fixed block II is fixedly connected to the upper side of the inclined plate. A control plate is rotatably connected to the outer side of the fixed block II. A guide plate is fixedly connected to the outer side of the rotating rod. A lifting block is slidably connected to the outer side of the guide plate. A connecting block is fixedly connected to the outer side of the lifting block. A lifting ring is fixedly connected to the outer side of the connecting block. A plurality of fixed blocks III are fixedly connected to the outer side of the lifting ring, and the fixed blocks III are rotatably connected to the control plate.

[0012] Preferably, a mounting disc is fixedly connected to the outer side of the rotating rod. A spring is fixedly connected between the mounting disc and the connecting block. A resisting rod is fixedly connected to the upper side of the lifting ring. A plurality of convex blocks are fixedly connected to the lower side of the fixed disc, and the resisting rod abuts against the convex blocks.

[0013] Preferably, a motor for driving the rotating rod is fixedly connected to the upper side of the purification cylinder. A drain pipe is fixedly connected to the outer side of the purification cylinder and below the air inlet pipe. A valve is arranged on the outer side of the drain pipe.

[0014] Advantageous Effects

[0015] The present invention provides a sintering machine flue gas purification device. Compared with the prior art, the following

[0016] Advantageous Effects are achieved:

[0017] (1) For this sintering machine flue gas purification device, by providing a purification cylinder, an air inlet pipe, a fixed pipe, a spray head, and a water pump I, it is convenient for the spray head to spray an alkaline solution to treat the sintering machine flue gas, and with the rotating rod, stirring plates, fixed cylinder, branch cylinder, dispersion plate, dispersion piece I, and dispersion piece II, it is convenient to disperse the introduced gas, making the high-concentration flue gas evenly distributed and increasing the flue gas purification effect.

[0018] (2) For this sintering machine flue gas purification device, by providing an inclined plate, a fixed ring, a chute, guide blocks, a control plate, a lifting ring, a resisting rod, and convex blocks, when stirring the flue gas, it is convenient to control the inclined plate to disperse the discharged liquid, and when the activated carbon plate adsorbs flue gas impurities, the impurities are evenly distributed on the activated carbon plate.

[0019] (3) For this sintering machine flue gas purification device, by providing a cooling pipe, annular pipe II, annular pipe III, a water outlet pipe, and a water pump II, it is convenient to cool down the discharged flue gas and avoid polluting the surrounding environment due to the high temperature of the discharged flue gas. Description of the Drawings

[0020] Figure 1 It is the overall three-dimensional structure diagram of the present invention;

[0021] Figure 2 It is the sectional three-dimensional structure diagram of the present invention;

[0022] Figure 3 It is the partial three-dimensional structure diagram of the present invention;

[0023] Figure 4 It is the three-dimensional structure diagram of the processing unit in the present invention;

[0024] Figure 5 It is the partial three-dimensional structure diagram of the processing unit in the present invention;

[0025] Figure 6 It is Figure 5 the enlarged view of part A in

[0026] Figure 7 It is the sectional three-dimensional structure diagram of the uniform component in the present invention;

[0027] Figure 8 It is Figure 7 the enlarged view of part B in

[0028] Figure 9 It is Figure 7 the enlarged view of part C in

[0029] In the figure: 1, purification cylinder; 2, intake pipe; 3, drain pipe; 4, exhaust pipe; 5, motor; 6, water pump I; 7, processing unit; 8, activated carbon plate; 9, connecting pipe; 10, rotating rod; 11, fixed disk; 12, branch plate; 13, bottom block; 14, fixed pipe; 15, nozzle; 16, delivery pipe; 17, convex block; 18, annular pipe I;

[0030] 71, fixed rod; 72, support disk; 73, fixed cylinder; 74, uniform component; 75, cooling component; 76, top pipe; 77, dispersion plate I; 78, top disk; 79, branch pipe; 710, branch cylinder; 711, stirring plate; 712, bottom frame; 713, toothed ring; 714, dispersion plate II; 715, stabilizing disk; 716, rotating shaft; 717, gear; 718, dispersion plate; 719, dispersion hole;

[0031] 741, fixing ring; 742, sliding groove; 743, guide block; 744, fixing block I; 745, inclined plate; 746, fixing block II; 747, control plate; 748, fixing block III; 749, lifting ring; 7410, guide plate; 7411, lifting block; 7412, connecting block; 7413, spring; 7414, mounting plate; 7415, resisting rod;

[0032] 751. Water pump two; 752. Installation pipe; 753. Annular pipe two; 754. Cooling pipe; 755. Annular pipe three; 756. Water outlet pipe. Specific implementation mode

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Embodiment 1

[0035] Please refer to Figures 1 - 7 , the present invention provides a technical solution: a flue gas purification device for a sintering machine, including a purification cylinder 1. The outer side of the purification cylinder 1 is fixedly connected with an air inlet pipe 2. One end of the air inlet pipe 2 passes through the inner side of the purification cylinder 1 and is provided with a treatment unit 7 for purifying the flue gas of the sintering machine on the upper side of the air inlet pipe 2. The outer side of the purification cylinder 1 and above the air inlet pipe 2 is fixedly connected with an exhaust pipe 4. The right side of the purification cylinder 1 is fixedly connected with a water pump one 6. The inner side of the purification cylinder 1 is provided with a fixed disk 11. A plurality of branch plates 12 are fixedly connected between the fixed disk 11 and the purification cylinder 1. Two bottom blocks 13 are fixedly connected to the lower side of the branch plates 12. A fixed pipe 14 is fixedly connected between the two bottom blocks 13. A plurality of nozzles 15 are fixedly connected to the lower side of the fixed pipe 14. A plurality of conveying pipes 16 are fixedly connected to the upper side of the plurality of fixed pipes 14. The upper end of the conveying pipe 16 is fixedly connected with an annular pipe one 18. A connecting pipe 9 is fixedly connected between the annular pipe one 18 and the water pump one 6. The treatment unit 7 includes a plurality of fixed rods 71. A support disk 72 is fixedly connected to the outer side of the fixed rod 71. A fixed cylinder 73 is fixedly connected to the upper side of the support disk 72. A uniform component 74 and a cooling component 75 are arranged on the outer side of the fixed cylinder 73. A motor 5 for driving a rotating rod 10 is fixedly connected to the upper side of the purification cylinder 1. The outer side of the purification cylinder 1 and below the air inlet pipe 2 is fixedly connected with a drain pipe 3. A valve is arranged on the outer side of the drain pipe 3. The valve facilitates the discharge of the liquid in the purification cylinder 1. Among them, the input end of the water pump one 6 is connected to a container containing an alkaline solution. When treating the flue gas of the sintering machine, the air inlet pipe 2 is connected to the smoke outlet of the sintering machine. During the treatment, the alkaline solution is introduced into the annular pipe one 18 through the connecting pipe 9, and then through a plurality of conveying pipes 16, the alkaline solution is introduced into and distributed into a plurality of fixed pipes 14, and the alkaline solution is sprayed out through a plurality of nozzles 15, which facilitates the mixing of the alkaline solution and the flue gas and treats the flue gas.

[0036] The intake pipe 2 is fixedly connected to the support disk 72. Above the support disk 72 and inside the fixed cylinder 73, a plurality of branch cylinders 710 are fixedly connected. Above the branch cylinders 710, a plurality of second dispersing plates 714 are fixedly connected. Above the second dispersing plates 714, a stabilizing disk 715 is fixedly connected. Above the stabilizing disk 715, a rotating shaft 716 is rotatably connected. The lower end of the rotating shaft 716 passes through the lower side of the stabilizing disk 715 and a plurality of dispersing plates 718 are fixedly connected to the outer side thereof. A plurality of dispersing holes 719 are formed in the outer side of the dispersing plates 718. The upper end of the rotating shaft 716 is fixedly connected to a gear 717. The lower end of the rotating rod 10 is fixedly connected to a bottom frame 712. A toothed ring 713 meshing with the gear 717 is fixedly connected to the outer side of the bottom frame 712. A plurality of branch pipes 79 are fixedly connected between the plurality of branch cylinders 710 and the support disk 72. The branch pipes 79 communicate with the intake pipe 2. A plurality of stirring plates 711 are fixedly connected to the outer side of the rotating rod 10 and above the bottom frame 712. When treating the flue gas, the motor 5 is started. The motor 5 drives the rotating rod 10 to rotate. The rotating rod 10 drives the bottom frame 712 to rotate. The bottom frame 712 drives the toothed ring 713 to rotate. The toothed ring 713 drives a plurality of gears 717 to rotate. The gears 717 drive the rotating shaft 716 to rotate. The rotating shaft 716 drives the dispersing plates 718 to rotate. The flue gas is distributed into a plurality of branch cylinders 710 through a plurality of branch pipes 79. The rotating dispersing plates 718 perform preliminary dispersion treatment on the flue gas, and the flue gas is dispersed again through a plurality of dispersing holes 719. The flue gas is discharged through the upper open ends of the branch cylinders 710, and the second dispersing plates 714 disperse the flue gas to make the flue gas evenly distributed. The rotating rod 10 drives the stirring plates 711 to rotate. The stirring plates 711 disperse the flue gas discharged from the branch cylinders 710 again to facilitate the even distribution of the flue gas. Finally, the flue gas is discharged through the top pipe 76 and the first dispersing plates 77.

[0037] The top pipe 76 is fixedly connected to the upper side of the fixed cylinder 73. A plurality of first dispersing plates 77 are fixedly connected to the upper side of the top pipe 76. The top plate 78 is fixedly connected to the upper side of the first dispersing plates 77. The plurality of first dispersing plates 77 provided perform dispersion treatment when the flue gas is discharged.

[0038] The cooling assembly 75 includes a plurality of cooling pipes 754. The plurality of cooling pipes 754 are all fixedly connected to the inner side of the fixed cylinder 73. The upper end of the cooling pipe 754 is fixedly connected with a third annular pipe 755. The lower side of the third annular pipe 755 is fixedly connected with a water outlet pipe 756. The lower ends of the water outlet pipe 756 and the cooling pipe 754 both pass through the lower side of the support plate 72. The lower end of the cooling pipe 754 is fixedly connected with a second annular pipe 753. A second water pump 751 is fixedly connected to the inner side of the purification cylinder 1. An installation pipe 752 is fixedly connected between the second water pump 751 and the second annular pipe 753. The bottom of the purification cylinder 1 contains a coolant. During processing, the second water pump 751 is started to pump out the coolant in the purification cylinder 1, and through the installation pipe 752 and the second annular pipe 753, the coolant is distributed into the plurality of cooling pipes 754, and under the action of the third annular pipe 755 and the water outlet pipe 756, it is convenient for the coolant to be discharged into the purification cylinder 1, facilitating the plurality of cooling pipes 754 to cool the high-temperature flue gas.

[0039] Embodiment 2

[0040] On the basis of Embodiment 1, as Figures 7 - 9As shown, an activated carbon plate 8 is fixedly connected to the outside of the fixed cylinder 73. The uniform component 74 includes a fixed ring 741, which is fixedly connected to the outside of the fixed cylinder 73 and located above the activated carbon plate 8. A chute 742 is provided on the outside of the fixed ring 741. A plurality of guide blocks 743 are slidably connected to the inside of the chute 742. A first fixing block 744 is fixedly connected to the outside of each of the plurality of guide blocks 743. An inclined plate 745 is rotatably connected to the outside of the first fixing block 744. A second fixing block 746 is fixedly connected to the upper side of the inclined plate 745. A control plate 747 is rotatably connected to the outside of the second fixing block 746. A guide plate 7410 is fixedly connected to the outside of the rotating rod 10. A lifting block 7411 is slidably connected to the outside of the guide plate 7410. A connecting block 7412 is fixedly connected to the outside of the lifting block 7411. A lifting ring 749 is fixedly connected to the outside of the connecting block 7412. A plurality of third fixing blocks 748 are fixedly connected to the outside of the lifting ring 749. The third fixing block 748 is rotatably connected to the control plate 747. A mounting disc 7414 is fixedly connected to the outside of the rotating rod 10. A spring 7413 is fixedly connected between the mounting disc 7414 and the connecting block 7412. A resisting rod 7415 is fixedly connected to the upper side of the lifting ring 749. A plurality of convex blocks 17 are fixedly connected to the lower side of the fixed disc 11. The resisting rod 7415 abuts against the convex blocks 17. When treating the flue gas, the rotating rod 10 drives the lifting ring 749 to rotate. The lifting ring 749 drives the inclined plate 745 on the control plate 747. At the same time, the lifting ring 749 drives the resisting rod 7415 to rotate. Under the action of the convex blocks 17, the resisting rod 7415 moves up and down repeatedly. The resisting rod 7415 drives the lifting ring 749 to move up and down repeatedly. The lifting ring 749 drives the control plate 747 to swing. The control plate 747 drives the inclined plate 745 to swing. It is convenient for the plurality of inclined plates 745 to rotate and swing at the same time, so that the inclined plate 745 disperses the liquid discharged from the nozzle 15, and the impurities in the liquid and the flue gas are evenly distributed on the activated carbon plate 8, which is convenient for treating the impurities in the flue gas.

[0041] Working principle: When in use, the staff first connect the air inlet pipe 2 with the smoke outlet of the sintering machine. The flue gas passes through multiple branch pipes 79 into multiple branch cylinders 710. Start the motor 5, and the motor 5 drives the rotating rod 10 to rotate. Under the action of the chassis 712, the gear ring 713, the gear 717, and the rotating shaft 716, control the dispersion plate 718 to rotate, facilitating the preliminary dispersion of the flue gas by the dispersion plate 718 and the dispersion holes 719. Then the flue gas is dispersed again by the dispersion piece two 714. The rotating rod 10 drives the stirring plate 711 to rotate, and the stirring plate 711 disperses the discharged flue gas. Then the flue gas is discharged through the top pipe 76. At the same time, start the water pump one 6 to make the nozzle 15 spray out the alkaline solution, facilitating the treatment of the flue gas. At the same time, the rotating rod 10 drives the lifting ring 749 to rotate, and the lifting ring 749 drives the abutting rod 7415 to rotate. Under the action of the convex block 17, the spring 7413, the lifting block 7411, and the control plate 747, control the multiple inclined plates 745 to rotate and swing, facilitating the inclined plates 745 to disperse the falling liquid, making the impurities in the flue gas evenly distributed on the activated carbon plate 8, increasing the purification effect. When processing, start the water pump two 751. With the installation pipe 752, the annular pipe two 753, the cooling pipe 754, and the water outlet pipe 756, it is convenient for the cooling pipe 754 to cool down the high-temperature flue gas, avoiding polluting the surrounding environment due to the too high temperature of the discharged flue gas.

[0042] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0043] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flue gas purification device for a sintering machine, comprising a purification cylinder (1), characterized in that: An air inlet pipe (2) is fixedly connected to the outside of the purification cylinder (1). One end of the air inlet pipe (2) passes through the inside of the purification cylinder (1), and a treatment unit (7) for purifying the sintering machine flue gas is arranged above the air inlet pipe (2). An exhaust pipe (4) is fixedly connected to the outside of the purification cylinder (1) and above the air inlet pipe (2). A first water pump (6) is fixedly connected to the right side of the purification cylinder (1). A fixed disk (11) is arranged inside the purification cylinder (1). A plurality of branch plates (12) are fixedly connected between the fixed disk (11) and the purification cylinder (1). Two bottom blocks (13) are fixedly connected to the lower side of the branch plate (12). A fixed pipe (14) is fixedly connected between the two bottom blocks (13). A plurality of nozzles (15) are fixedly connected to the lower side of the fixed pipe (14). A conveying pipe (16) is fixedly connected to the upper side of each of the plurality of fixed pipes (14). The upper end of the conveying pipe (16) is fixedly connected to a first annular pipe (18). A connecting pipe (9) is fixedly connected between the first annular pipe (18) and the first water pump (6). The treatment unit (7) includes a plurality of fixed rods (71). A support disk (72) is fixedly connected to the outside of the fixed rod (71). A fixed cylinder (73) is fixedly connected to the upper side of the support disk (72). A uniform component (74) and a cooling component (75) are arranged on the outside of the fixed cylinder (73).

2. The flue gas purification device for a sintering machine according to claim 1, characterized in that: The air inlet pipe (2) is fixedly connected to the support disk (72). A plurality of branch cylinders (710) are fixedly connected between the upper side of the support disk (72) and inside the fixed cylinder (73). A plurality of second dispersing plates (714) are fixedly connected to the upper side of the branch cylinder (710). A stabilizing disk (715) is fixedly connected to the upper side of the second dispersing plate (714). A rotating shaft (716) is rotatably connected to the upper side of the stabilizing disk (715). The lower end of the rotating shaft (716) passes through the lower side of the stabilizing disk (715), and a plurality of dispersing plates (718) are fixedly connected to the outside of the rotating shaft (716). A plurality of dispersing holes (719) are formed in the outside of the dispersing plate (718). A gear (717) is fixedly connected to the upper end of the rotating shaft (716). A bottom frame (712) is fixedly connected to the lower end of the rotating rod (10). A toothed ring (713) meshing with the gear (717) is fixedly connected to the outside of the bottom frame (712). A branch pipe (79) is fixedly connected between the plurality of branch cylinders (710) and the support disk (72). The branch pipe (79) is communicated with the air inlet pipe (2). A plurality of stirring plates (711) are fixedly connected to the outside of the rotating rod (10) and above the bottom frame (712).

3. A flue gas purification device for a sintering machine according to claim 1, characterized in that: A top pipe (76) is fixedly connected to the upper side of the fixed cylinder (73). A plurality of first dispersing plates (77) are fixedly connected to the upper side of the top pipe (76). A top disk (78) is fixedly connected to the upper side of the first dispersing plate (77).

4. A flue gas purification device for a sintering machine according to claim 2, characterized in that: The cooling assembly (75) includes a plurality of cooling pipes (754). A plurality of the cooling pipes (754) are fixedly connected to the inner side of the fixed cylinder (73). The upper end of the cooling pipe (754) is fixedly connected to the third annular pipe (755). The lower side of the third annular pipe (755) is fixedly connected to a water outlet pipe (756). The lower ends of the water outlet pipe (756) and the cooling pipe (754) both pass through the lower side of the support disc (72). The lower end of the cooling pipe (754) is fixedly connected to the second annular pipe (753). A second water pump (751) is fixedly connected to the inner side of the purification cylinder (1). An installation pipe (752) is fixedly connected between the second water pump (751) and the second annular pipe (753).

5. The flue gas purification device for a sintering machine according to claim 2, wherein: An activated carbon plate (8) is fixedly connected to the outer side of the fixed cylinder (73). The uniform component (74) includes a fixed ring (741). The fixed ring (741) is fixedly connected to the outer side of the fixed cylinder (73) and is located above the activated carbon plate (8). A chute (742) is formed in the outer side of the fixed ring (741). A plurality of guide blocks (743) are slidably connected to the inner side of the chute (742). A first fixing block (744) is fixedly connected to the outer side of each of the plurality of guide blocks (743). An inclined plate (745) is rotatably connected to the outer side of the first fixing block (744). A second fixing block (746) is fixedly connected to the upper side of the inclined plate (745). A control plate (747) is rotatably connected to the outer side of the second fixing block (746). A guide plate (7410) is fixedly connected to the outer side of the rotating rod (10). A lifting block (7411) is slidably connected to the outer side of the guide plate (7410). A connecting block (7412) is fixedly connected to the outer side of the lifting block (7411). A lifting ring (749) is fixedly connected to the outer side of the connecting block (7412). A plurality of third fixing blocks (748) are fixedly connected to the outer side of the lifting ring (749). The third fixing blocks (748) are rotatably connected to the control plate (747).

6. The flue gas purification device for a sintering machine according to claim 5, wherein: An installation disc (7414) is fixedly connected to the outer side of the rotating rod (10). A spring (7413) is fixedly connected between the installation disc (7414) and the connecting block (7412). A resisting rod (7415) is fixedly connected to the upper side of the lifting ring (749). A plurality of convex blocks (17) are fixedly connected to the lower side of the fixed disc (11). The resisting rod (7415) abuts against the convex blocks (17).

7. A flue gas purification device for a sintering machine according to claim 1, characterized in that: A motor (5) for driving the rotating rod (10) is fixedly connected to the upper side of the purification cylinder (1). A drain pipe (3) is fixedly connected to the outer side of the purification cylinder (1) and is located below the air inlet pipe (2). A valve is arranged on the outer side of the drain pipe (3).

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