Steel Sintering Flue Gas Desulfurization and Denitrification Treatment System

Abstract

The present invention discloses a desulfurization and denitration treatment system for steel sintering flue gas, including a solution tank. The top of the solution tank is fixedly communicated with a spray tower. The surface of the spray tower is fixedly communicated with an air inlet. The right top of the solution tank is fixedly connected with a water pump. The output end and the input end of the water pump are both fixedly communicated with a connecting pipe. The inner cavity of the spray tower is fixedly connected with a plurality of spray layers and a swirl plate respectively. It is characterized in that: a filter screen plate is fixedly connected to the bottom of the inner cavity of the spray tower, a filter and cleaning device is fixedly arranged on the inner wall of the spray tower, and a gas phase oxidation device is arranged on the top of the solution tank. The present invention relates to the technical field of waste gas emission. This desulfurization and denitration treatment system for steel sintering flue gas solves the problems that the spraying methods are all for single treatment of desulfurization or denitration, and the impurities after filtration need to be manually entered into the spray tower to clean the impurities after the work is completed, resulting in time-consuming and laborious problems.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas emission, and specifically to a desulfurization and denitration treatment system for steel sintering flue gas. Background Art

[0002] The sintering machine is applicable to the sintering operation of large-scale ferrous metallurgy sintering plants, mainly for the sintering treatment of iron ore powder in large and medium-sized sintering plants. The sintering machine is divided into several specifications with different lengths and widths according to the sintering area, and users can select according to their output or site conditions. During the sintering process, the sintering machine will generate a large amount of flue gas, which contains pollutants such as dust and sulfides. It is necessary to purify the sintering flue gas to make the flue gas meet the emission standards. With the strengthening of China's efforts in atmospheric protection, denitration of steel plant flue gas has become inevitable.

[0003] During the sintering of steel, nitrogen oxides and sulfur oxides will exist in the generated flue gas. There are many types of desulfurization and denitration treatment technologies. Among them, the spraying method is to perform single treatment for desulfurization or denitration. In addition, when treating desulfurization or denitration, the spraying tower will cause the solution to contact the flue gas to produce a chemical reaction during spraying. However, a filter screen plate is provided at the bottom of the inner cavity during spraying to filter impurities in the solution. However, the impurities need to be cleaned manually inside the spraying tower after the work is completed, resulting in time-consuming and laborious problems. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the present invention provides a desulfurization and denitration treatment system for steel sintering flue gas, which solves the problems that the spraying method is to perform single treatment for desulfurization or denitration. In addition, when treating desulfurization or denitration, the spraying tower will cause the solution to contact the flue gas to produce a chemical reaction during spraying. However, a filter screen plate is provided at the bottom of the inner cavity during spraying to filter impurities in the solution. However, the impurities need to be cleaned manually inside the spraying tower after the work is completed, resulting in time-consuming and laborious problems.

[0006] (II) Technical Solutions

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions: A desulfurization and denitration treatment system for steel sintering flue gas includes a solution pool. The top of the solution pool is fixedly communicated with a spraying tower. The surface of the spraying tower is fixedly communicated with an air inlet. The right top of the solution pool is fixedly connected with a water pump. The output end and the input end of the water pump are both fixedly communicated with a connecting pipe. The inner cavity of the spraying tower is fixedly connected with a plurality of spraying layers and a swirl plate respectively. The bottom of the inner cavity of the spraying tower is fixedly connected with a filter screen plate. A filter removal device is fixedly arranged on the inner wall of the spraying tower. A gas phase oxidation device is arranged on the top of the solution pool.

[0008] The filtering and cleaning device includes a first motor, a second motor and a sleeve. The output ends of the second motor and the first motor are respectively fixedly connected with a second rotating rod and a first rotating rod. Second bevel gears are fixedly sleeved at the opposite ends of the first rotating rod and the sleeve. A support sleeve rod is rotatably sleeved on the surface of the sleeve. A frame plate is fixedly communicated with the surface of the sleeve. A third rotating rod and a fourth rotating rod are respectively rotatably sleeved in the inner cavity of the sleeve and the inner cavity of one end of the frame plate. Pulley wheels are fixedly sleeved on the surfaces of the third rotating rod and the fourth rotating rod. A conveyor belt is movably sleeved on the surface of the pulley wheels. The top of the third rotating rod extends outside the top of the sleeve. First bevel gears are fixedly sleeved at the opposite ends of the third rotating rod and the second rotating rod. A connecting rod is rotatably sleeved on the surface of the left second bevel gear. An activated carbon plate is rotatably connected to the top of the connecting rod. Sliders are symmetrically and fixedly connected to the surface of the activated carbon plate. Springs are fixedly connected to the bottoms of the sliders.

[0009] The gas phase oxidation device includes a stirring tank. A solenoid valve is fixedly arranged at the bottom of the stirring tank. A driving seat is fixedly connected to the surface of the stirring tank. A driving motor is fixedly connected to the bottom of the driving seat. A lead screw is rotatably sleeved in the inner cavity of the driving seat. A sliding block is threadedly sleeved on the surface of the lead screw. A connecting plate is fixedly connected to the surface of the sliding block. A top cover is fixedly connected to the top of the connecting plate. A servo motor is fixedly connected to the top of the top cover. A stirring rod is fixedly connected to the output end of the servo motor.

[0010] Preferably, an air outlet is fixedly communicated with the top of the spray tower. A control panel is fixedly arranged at the corner of the top of the solution tank. Installation grooves are symmetrically and fixedly opened on the inner wall of the spray tower. One end of the connecting pipe is fixedly communicated with the side surface of the solution tank and the other end is fixedly communicated with a plurality of spray layers. A liquid discharge port is fixedly communicated with the corner of the solution tank.

[0011] Preferably, a collection box is slidably sleeved on the lower surface of the air inlet. A through groove is fixedly opened at the bottom of the inner cavity of the air inlet and is communicated with the collection box.

[0012] Preferably, the stirring tank is fixedly connected to the corner of the top of the solution tank, and the solenoid valve extends into the inner cavity of the solution tank.

[0013] Preferably, the output end of the driving motor penetrates through the bottom of the driving seat and is fixedly connected to one end of the lead screw. The top cover is aligned with the port of the stirring tank and is flush with each other.

[0014] Preferably, the first motor and the second motor are symmetrically and fixedly connected to the surface of the spray tower. The first rotating rod and the second rotating rod both penetrate through the surface of the spray tower and extend into the inner cavity of the spray tower.

[0015] Preferably, the support sleeve rod is fixedly connected to the inner wall of the spray tower. The slider is slidably sleeved in the inner cavity of the installation groove, and the bottom of the spring is fixedly connected to the bottom of the inner cavity of the installation groove. The second bevel gear and the first bevel gear are meshed with each other.

[0016] Preferably, the bottom of the conveyor belt is in contact with the surface of the filter mesh plate, and one end of the frame plate fits with the inner wall of the spray tower.

[0017] Beneficial effects

[0018] The present invention provides a system for desulfurization and denitrification treatment of steel sintering flue gas. Compared with the prior art, it has the following beneficial effects:

[0019] 1. For the system for desulfurization and denitrification treatment of steel sintering flue gas, by starting the servo motor, the servo motor drives the stirring rod to stir and blend the solution. Then, the solenoid valve is started to automatically feed the solution into the inner cavity of the solution tank. Then, the flue gas is conveyed into the inner cavity of the spray tower through the air inlet. The flue gas will first pass through the activated carbon plate to filter impurities in the flue gas. Then, the filtered flue gas will pass through the threaded channels arranged on the surface of the swirl plate, causing the gas to rotate upward. At the same time, the water pump is started, and the water pump conveys the solution into the inner cavity of the spray layer through the connecting pipe, and the solution is sprayed through the spray layer, coming into contact with the flue gas and generating a chemical reaction to absorb OX, NO2, and HNOX carried in the flue gas. The liquid-phase oxidation liquid prepared by the gas-phase oxidation equipment is used to simultaneously desulfurize and denitrify the flue gas.

[0020] 2. For the system for desulfurization and denitrification treatment of steel sintering flue gas, by starting the first motor and the second motor through the control panel, the second motor and the first motor drive the second rotating rod and the first rotating rod to rotate respectively, so that the first bevel gear and the second bevel gear are meshed. At the same time, the second bevel gear on the left drives the connecting rod to perform eccentric motion. Through the rotational connection between the top of the connecting rod and the activated carbon plate, the activated carbon plate slides in the inner cavity of the installation groove through the slider, causing the activated carbon plate to move up and down, generating vibration of the activated carbon plate, and dropping the impurities remaining on the surface of the activated carbon plate. Another second bevel gear drives the sleeve to rotate in the inner cavity of the support sleeve rod, thereby driving the frame plate to scrape impurities on the surface of the filter mesh plate. Secondly, the rotation of the first bevel gear drives the third rotating rod to rotate in the inner cavity of the pulley, and then drives the conveyor belt to rotate in the inner cavities of the frame plate and the sleeve through the pulley, causing the conveyor belt to drive the scraped impurities to move to one side, so that the impurities finally enter the inner cavity of the air inlet and fall into the inner cavity of the collection box through the through groove for collection. Finally, the flue gas is discharged through the air outlet. After the work is completed, the collection box can be taken out and the collected impurities can be removed, solving the problem that it is time-consuming and laborious to clean the impurities after filtration manually inside the spray tower after the work is completed.

[0021] 3. For the steel sintering flue gas desulfurization and denitrification treatment system, the driving motor is started through the control panel. The output end of the driving motor drives the lead screw to rotate, causing the sliding block on the surface to drive the sliding block to move upward, so that the top cover leaves the port of the stirring tank, and then the liquid-phase oxidation liquid is put into the inner cavity of the stirring tank, which is convenient for the feeding of the liquid-phase oxidation liquid. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of the present invention.

[0023] Figure 2 It is the structure of the present invention Figure 1 Partial enlarged view at A in the structure.

[0024] Figure 3 It is a schematic diagram of the collection box of the structure of the present invention.

[0025] Figure 4 It is a cross-sectional view of the spray tower of the structure of the present invention.

[0026] Figure 5 It is the structure of the present invention Figure 4 Partial enlarged view at B in the structure.

[0027] Figure 6 It is a schematic diagram of the gas-phase oxidation equipment of the structure of the present invention.

[0028] Figure 7 It is a partial schematic diagram of the gas-phase oxidation equipment of the structure of the present invention.

[0029] Figure 8 It is a schematic diagram of the filter cleaning device of the structure of the present invention.

[0030] Figure 9 It is a partial schematic diagram of the filter cleaning device structure of the present invention.

[0031] In the figure: 1, solution tank; 2, spray tower; 3, liquid discharge port; 4, air outlet; 5, spray layer; 6, water pump; 7, connecting pipe; 8, gas phase oxidation equipment; 81, stirring tank; 82, top cover; 83, servo motor; 84, driving seat; 85, driving motor; 86, lead screw; 87, sliding block; 88, connecting plate; 89, stirring rod; 810, solenoid valve; 9, control panel; 10, filtration and cleaning device; 101, first motor; 102, second motor; 103, first rotating rod; 104, second rotating rod; 105, first bevel gear; 106, second bevel gear; 107, sleeve; 108, supporting sleeve rod; 109, frame plate; 110, conveyor belt; 111, connecting rod; 112, activated carbon plate; 113, slider; 114, spring; 115, third rotating rod; 116, fourth rotating rod; 117, pulley; 11, air inlet; 12, filter mesh plate; 13, through groove; 14, collection box; 15, swirl plate; 16, installation groove. Detailed implementation manners

[0032] The technical solutions in the embodiments of the present invention are clearly and completely described below. Apparently, 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.

[0033] Please refer to Figures 1-5 The embodiments of the present invention provide a technical solution: a steel sintering flue gas desulfurization and denitrification treatment system, including a solution tank 1. The top of the solution tank 1 is fixedly communicated with a spray tower 2. The surface of the spray tower 2 is fixedly communicated with an air inlet 11. The upper right part of the solution tank 1 is fixedly connected with a water pump 6. The output end and the input end of the water pump 6 are both fixedly communicated with a connecting pipe 7. The inner cavity of the spray tower 2 is fixedly connected with a plurality of spray layers 5 and a swirl plate 15 respectively. The bottom of the inner cavity of the spray tower 2 is fixedly connected with a filter mesh plate 12. A filtration and cleaning device 10 is fixedly arranged on the inner wall of the spray tower 2. A gas phase oxidation equipment 8 is arranged on the top of the solution tank 1. The top of the spray tower 2 is fixedly communicated with an air outlet 4. A control panel 9 is fixedly arranged at the corner of the top of the solution tank 1. The inner wall of the spray tower 2 is symmetrically and fixedly opened with an installation groove 16. One end of the connecting pipe 7 is fixedly communicated with the side surface of the solution tank 1, and the other end is fixedly communicated with a plurality of spray layers 5. The corner of the solution tank 1 is fixedly communicated with a liquid discharge port 3. A collection box 14 is slidably sleeved on the lower surface of the air inlet 11. A through groove 13 is fixedly opened at the bottom of the inner cavity of the air inlet 11, and the through groove 13 is communicated with the collection box 14.

[0034] Please refer to Figures 8-9, the filtering and cleaning device 10 includes a first motor 101, a second motor 102 and a sleeve 107. The output ends of the second motor 102 and the first motor 101 are respectively fixedly connected with a second rotating rod 104 and a first rotating rod 103. Opposite ends of the first rotating rod 103 and the sleeve 107 are fixedly sleeved with second bevel gears 106. The surface of the sleeve 107 is rotatably sleeved with a support sleeve rod 108. The surface of the sleeve 107 is fixedly communicated with a frame plate 109. The inner cavity of the sleeve 107 and the inner cavity of one end of the frame plate 109 are respectively rotatably sleeved with a third rotating rod 115 and a fourth rotating rod 116. The surfaces of the third rotating rod 115 and the fourth rotating rod 116 are fixedly sleeved with belt pulleys 117. The surface of the belt pulley 117 is movably sleeved with a conveyor belt 110. The top of the third rotating rod 115 extends outside the top of the sleeve 107. Opposite ends of the third rotating rod 115 and the second rotating rod 104 are fixedly sleeved with a first bevel gear 105. The surface of the left second bevel gear 106 is rotatably sleeved with a connecting rod 111. The top of the connecting rod 111 is rotatably connected with an activated carbon plate 112. The surface of the activated carbon plate 112 is symmetrically fixedly connected with sliding blocks 113. The bottom of the sliding block 113 is fixedly connected with a spring 114. The first motor 101 and the second motor 102 are symmetrically fixedly connected to the surface of the spray tower 2. The first rotating rod 103 and the second rotating rod 104 both penetrate the surface of the spray tower 2 and extend into the inner cavity of the spray tower 2. The support sleeve rod 108 is fixedly connected to the inner wall of the spray tower 2. The sliding block 113 is slidably sleeved in the inner cavity of the installation groove 16, and the bottom of the spring 114 is fixedly connected to the bottom of the inner cavity of the installation groove 16. The second bevel gear 106 and the first bevel gear 105 are both meshed with each other. The bottom of the conveyor belt 110 is in contact with the surface of the filter mesh plate 12, and one end of the frame plate 109 fits with the inner wall of the spray tower 2.

[0035] Please refer to Figures 6-7 , the gas-phase oxidation device 8 includes a stirring tank 81. The bottom of the stirring tank 81 is fixedly provided with a solenoid valve 810. The surface of the stirring tank 81 is fixedly connected with a driving seat 84. The bottom of the driving seat 84 is fixedly connected with a driving motor 85. The inner cavity of the driving seat 84 is rotatably sleeved with a lead screw 86. The surface of the lead screw 86 is threadedly sleeved with a sliding block 87. The surface of the sliding block 87 is fixedly connected with a connecting plate 88. The top of the connecting plate 88 is fixedly connected with a top cover 82. The top of the top cover 82 is fixedly connected with a servo motor 83. The output end of the servo motor 83 is fixedly connected with a stirring rod 89. The stirring tank 81 is fixedly connected to the corner at the top of the solution tank 1, and the solenoid valve 810 extends into the inner cavity of the solution tank 1. The output end of the driving motor 85 penetrates the bottom of the driving seat 84 and is fixedly connected with one end of the lead screw 86. The top cover 82 is aligned with the port of the stirring tank 81 and is flush with each other.

[0036] S1. During use, first start the drive motor 85 through the control panel 9. The output end of the drive motor 85 drives the lead screw 86 to rotate, causing the slider 87 on the surface to drive the slider 87 to move upward, so that the top cover 82 leaves the port of the mixing tank 81. Then, pour the liquid-phase oxidation liquid into the inner cavity of the mixing tank 81. Then, cover the top cover 82 on the port of the mixing tank 81 through the above steps. Then, start the servo motor 83 to drive the stirring rod 89 to stir and blend the solution. Then, start the solenoid valve 810 to make the solution automatically enter the inner cavity of the solution tank 1. Then, convey the flue gas into the inner cavity of the spray tower 2 through the air inlet 11. The flue gas will first pass through the activated carbon plate 112 to filter the impurities in the flue gas. Then, the filtered flue gas will pass through the spiral plate 15 into the threaded channel arranged on the surface, causing the gas to rotate upward. At the same time, start the water pump 6, and the water pump 6 conveys the solution into the inner cavity of the spray layer 5 through the connecting pipe 7, and sprays the solution through the spray layer 5 to come into contact with the flue gas and generate a chemical reaction, absorbing OX, NO2, and HNOX carried in the flue gas to achieve desulfurization and denitrification of the flue gas. After the reaction, the slurry and impurities will fall on the surface of the filter mesh plate 12, causing the slurry to return to the solution tank 1, and the impurities will remain on the surface of the filter mesh plate 12. Then, start the first motor 101 and the second motor 102 through the control panel 9. The second motor 102 and the first motor 101 drive the second rotating rod 104 and the first rotating rod 103 to rotate respectively, so that the first bevel gear 105 and the second bevel gear 106 are meshed and connected. At the same time, the second bevel gear 106 on the left will drive the connecting rod 111 to perform eccentric motion, and through the rotational connection between the top of the connecting rod 111 and the activated carbon plate 112, the activated carbon plate 112 slides through the slider 113 in the inner cavity of the installation groove 16, causing the activated carbon plate 112 to move up and down, making the activated carbon plate 112 vibrate, and dropping the impurities remaining on the surface of the activated carbon plate 112. The other second bevel gear 106 will drive the sleeve 107 to rotate in the inner cavity of the support sleeve rod 108, thereby driving the frame plate 109 to scrape the impurities on the surface of the filter mesh plate 12. Secondly, the rotation of the first bevel gear 105 will drive the third rotating rod 115 to rotate in the inner cavity of the pulley 117, and then drive the conveyor belt 110 to rotate in the inner cavities of the frame plate 109 and the sleeve 107 through the pulley 117, so that the conveyor belt 110 drives the scraped impurities to move to one side, causing the impurities to finally enter the inner cavity of the air inlet 11, and falling into the inner cavity of the collection box 14 through the through groove 13 for collection. Finally, the flue gas is discharged through the air outlet 4. After the work is completed, the collection box 14 can be taken out and the collected impurities can be removed.

[0037] Among them, the liquid-phase oxidation liquid is formed by fusing the alkaline aqueous solutions of strong oxidants such as NaCLO, KMnO4, Na2S2O8, O3, emulsified yellow phosphorus, and H2O2. A number of bumps are provided on the surface of the conveyor belt 110 to increase the friction with impurities, so as to drive the better movement of impurities.

[0038] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0039] 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 includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0040] 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 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 steel sintering flue gas desulfurization and denitrification treatment system, comprising a solution tank (1). The top of the solution tank (1) is fixedly communicated with a spray tower (2). The surface of the spray tower (2) is fixedly communicated with an air inlet (11). The right top of the solution tank (1) is fixedly connected with a water pump (6). The output end and the input end of the water pump (6) are both fixedly communicated with a connecting pipe (7). The inner cavity of the spray tower (2) is fixedly connected with a plurality of spray layers (5) and a swirl plate (15) respectively. It is characterized in that: A filter screen plate (12) is fixedly connected to the bottom of the inner cavity of the spray tower (2), a filtering and cleaning device (10) is fixedly arranged on the inner wall of the spray tower (2), and a gas-phase oxidation device (8) is arranged on the top of the solution tank (1); The filtering and cleaning device (10) includes a first motor (101), a second motor (102) and a sleeve (107). The output ends of the second motor (102) and the first motor (101) are respectively fixedly connected with a second rotating rod (104) and a first rotating rod (103). Second bevel gears (106) are fixedly sleeved on the opposite ends of the first rotating rod (103) and the sleeve (107). A support sleeve rod (108) is rotatably sleeved on the surface of the sleeve (107). A frame plate (109) is fixedly communicated with the surface of the sleeve (107). A third rotating rod (115) and a fourth rotating rod (116) are respectively rotatably sleeved in the inner cavity of the sleeve (107) and one end of the inner cavity of the frame plate (109). Pulley wheels (117) are fixedly sleeved on the surfaces of the third rotating rod (115) and the fourth rotating rod (116). A conveyor belt (110) is movably sleeved on the surface of the pulley wheel (117). The top of the third rotating rod (115) extends outside the top of the sleeve (107). First bevel gears (105) are fixedly sleeved on the opposite ends of the third rotating rod (115) and the second rotating rod (104). A connecting rod (111) is rotatably sleeved on the surface of the left second bevel gear (106). An activated carbon plate (112) is rotatably connected to the top of the connecting rod (111). Sliders (113) are symmetrically and fixedly connected to the surface of the activated carbon plate (112). Springs (114) are fixedly connected to the bottoms of the sliders (113); The gas-phase oxidation device (8) includes a stirring tank (81). A solenoid valve (810) is fixedly arranged at the bottom of the stirring tank (81). A driving seat (84) is fixedly connected to the surface of the stirring tank (81). A driving motor (85) is fixedly connected to the bottom of the driving seat (84). A lead screw (86) is rotatably sleeved in the inner cavity of the driving seat (84). A sliding block (87) is threadedly sleeved on the surface of the lead screw (86). A connecting plate (88) is fixedly connected to the surface of the sliding block (87). A top cover (82) is fixedly connected to the top of the connecting plate (88). A servo motor (83) is fixedly connected to the top of the top cover (82). A stirring rod (89) is fixedly connected to the output end of the servo motor (83).

2. The steel sintering flue gas desulfurization and denitrification treatment system according to claim 1, characterized in that: An air outlet (4) is fixedly communicated with the top of the spray tower (2). A control panel (9) is fixedly arranged at the corner of the top of the solution tank (1). Installation grooves (16) are symmetrically and fixedly opened and closed on the inner wall of the spray tower (2). One end of the connecting pipe (7) is fixedly communicated with the side surface of the solution tank (1), and the other end is fixedly communicated with a plurality of spray layers (5). A liquid discharge port (3) is fixedly communicated with the corner of the solution tank (1).

3. The steel sintering flue gas desulfurization and denitrification treatment system according to claim 1, characterized in that: A collection box (14) is slidably sleeved on the lower surface of the air inlet (11). A through groove (13) is fixedly formed at the bottom of the inner cavity of the air inlet (11), and the through groove (13) communicates with the collection box (14).

4. The steel sintering flue gas desulfurization and denitrification treatment system according to claim 1, characterized in that: The stirring tank (81) is fixedly connected to the corner of the top of the solution tank (1), and the solenoid valve (810) extends into the inner cavity of the solution tank (1).

5. The steel sintering flue gas desulfurization and denitrification treatment system according to claim 1, characterized in that: The output end of the driving motor (85) penetrates through the bottom of the driving seat (84) and is fixedly connected to one end of the lead screw (86). The top cover (82) is aligned with the port of the stirring tank (81) and is flush with each other.

6. The steel sintering flue gas desulfurization and denitrification treatment system according to claim 1, characterized in that: The first motor (101) and the second motor (102) are symmetrically and fixedly connected to the surface of the spray tower (2). The first rotating rod (103) and the second rotating rod (104) both penetrate through the surface of the spray tower (2) and extend into the inner cavity of the spray tower (2).

7. The steel sintering flue gas desulfurization and denitrification treatment system according to claim 1, characterized in that: The support sleeve rod (108) is fixedly connected to the inner wall of the spray tower (2). The slider (113) is slidably sleeved in the inner cavity of the installation groove (16), and the bottom of the spring (114) is fixedly connected to the bottom of the inner cavity of the installation groove (16). The second bevel gear (106) and the first bevel gear (105) are meshed with each other.

8. The steel sintering flue gas desulfurization and denitrification treatment system according to claim 1, characterized in that: The bottom of the conveyor belt (110) is in contact with the surface of the filter screen plate (12), and one end of the frame plate (109) fits with the inner wall of the spray tower (2).

Images