A comprehensive treatment device and process for sintering flue gas

Abstract

This invention relates to the field of flue gas treatment technology, specifically disclosing a comprehensive sintering flue gas treatment device and process, including a spray tower with a control unit installed on it; and at least one set of spray components. The comprehensive sintering flue gas treatment device and process of this invention monitors the flue gas volume in real time through a gas concentration detection unit and a flow rate detection unit. Combined with the linkage control of an angle adjustment component and a gas gathering component, when the flue gas volume is low, the flue gas is gathered to the center of the tower by blocking blades, and the tilt angle of the first edge spray head is adjusted to ensure that the spray liquid accurately covers the gathered flue gas area, avoiding waste due to excessive coverage without contact with the flue gas. Simultaneously, the second spray head at a fixed angle in the center continuously operates to ensure sufficient reaction between the spray liquid and the flue gas. Compared to traditional devices, the utilization rate of the spray liquid is significantly improved, reducing spray liquid consumption and subsequent waste liquid treatment costs.

Description

Technical Field

[0001] This invention relates to the field of flue gas treatment technology, specifically to a comprehensive treatment device and process for sintering flue gas. Background Technology

[0002] The sintering process generates a large amount of sintering flue gas containing pollutants such as dust, sulfur dioxide, and nitrogen oxides. Direct emission of this gas would cause serious air pollution. Therefore, efficient purification treatment of the sintering flue gas is necessary to meet emission standards. Spray absorption is a mature and widely used flue gas purification technology. Its core equipment is a spray tower. The spray liquid is atomized through nozzles and sprayed into the tower, allowing it to contact the rising sintering flue gas. The gas-liquid phase reaction is used to absorb and remove pollutants, thus achieving flue gas purification.

[0003] However, existing sintering flue gas scrubbing treatment devices have certain technical defects. Currently, most of the nozzles in the scrubbing tower are installed at a fixed angle, and their spray range and coverage angle remain unchanged after the device is assembled, making it impossible to adaptively adjust according to the actual amount of flue gas entering the scrubbing tower. During the sintering process, the operating load of the sintering machine fluctuates according to factors such as production plans and raw material supply, causing the amount of flue gas entering the scrubbing tower to change dynamically. When the flue gas volume is small, the spray range of the nozzles exceeds the actual flue gas flow requirements, and a large amount of scrubbing liquid falls directly without sufficient contact with the flue gas, reducing the utilization rate of the scrubbing liquid and increasing the consumption cost of the scrubbing liquid.

[0004] Therefore, a comprehensive sintering flue gas treatment device was designed to solve the above-mentioned technical problems. Summary of the Invention

[0005] This invention provides a comprehensive treatment device and process for sintering flue gas, aiming to solve the technical problem in related technologies where the flue gas volume is small, resulting in insufficient contact between the spray liquid and the flue gas, thus reducing the utilization rate of the spray liquid.

[0006] The present invention provides a comprehensive sintering flue gas treatment device, comprising:

[0007] A spray tower, equipped with a control unit;

[0008] At least one set of spray assembly is installed inside the spray tower. The spray assembly includes multiple spray pipes, each of which is connected to multiple hoses and multiple spray heads. The ends of the multiple hoses are connected to spray heads. Each spray pipe is provided with a connecting rod structure, which is connected to the spray heads. The connecting rod structure is used to adjust the angle of the multiple spray heads.

[0009] The displacement component is installed on the spray tower and is connected to multiple linkage structures. The displacement component is used to drive the multiple linkage structures to move simultaneously.

[0010] A gas gathering component is installed inside the spray tower and below the spray component. The gas gathering component is used to gather sintering flue gas. The gas gathering component includes a mounting ring seat, on which multiple shielding blades are provided, and an exhaust channel is formed between the multiple shielding blades.

[0011] The air inlet pipe is connected to the spray tower, and a gas concentration detection unit and a gas flow rate detection unit are installed on the air inlet pipe.

[0012] Preferably, the gas gathering assembly further includes incomplete gears, a drive assembly, and a flow guide seat. There are multiple incomplete gears, which are connected to the shielding blades and correspond one-to-one with each shielding blade. The drive assembly is disposed between the mounting ring seat and the spray tower and is used to drive multiple incomplete gears to rotate simultaneously.

[0013] Preferably, the drive assembly includes a drive component, a rotating groove, rotating rods, an internal gear ring, and gears. The rotating groove is disposed on the mounting ring seat. There are multiple rotating rods, all of which are disposed inside the rotating groove. The ends of the multiple rotating rods are connected to one side of the internal gear ring. The incomplete gear and the gear mesh with the internal gear ring. The drive component is mounted on the spray tower, and the output shaft of the drive component is located inside the spray tower. The output shaft of the drive component is connected to the gears.

[0014] Preferably, the linkage structure includes a rotating frame, connecting rods, and support blocks. Each spray head is connected to a rotating frame, and multiple adjacent rotating frames are connected by connecting rods. The multiple connecting rods are inclined, and the angles between the multiple connecting rods and the horizontal direction are different. There are multiple support blocks, and the rotating frame and the support block are rotatably connected. The rotating frame and the support block correspond one-to-one.

[0015] Preferably, the displacement assembly includes a telescopic component, a first hinge seat, a connecting rod, a second hinge seat, and a connecting rod. The telescopic component is installed on the spray tower. The first hinge seat is connected to the output end of the telescopic component. One end of the connecting rod is hinged to the first hinge seat, and the other end of the connecting rod is hinged to the second hinge seat. The connecting rod is connected to the rotating frame located closest to the center of the spray tower, and the second hinge seat is connected to the connecting rod.

[0016] Preferably, the flow guide seat includes a flow guide ring one and a flow guide ring two. The flow guide ring one is installed on the bottom side of the mounting ring seat, and the flow guide ring two is installed on the inner wall of the mounting ring seat. The thickness of the flow guide ring two is greater than the thickness of the mounting ring seat. A flow guide channel is formed between the flow guide ring two and the flow guide ring one. The cross-sectional shape of the flow guide channel is an outwardly convex arc.

[0017] Preferably, a flow guide shroud is installed inside the spray tower, the bottom diameter of the flow guide shroud is smaller than the top diameter of the flow guide shroud, and the flow guide shroud is located above the incomplete gear.

[0018] A comprehensive treatment process for sintering flue gas includes the following steps:

[0019] S1. The sintering flue gas is transported to the interior of the spray tower through the inlet pipe. The gas concentration detection unit and the gas flow rate detection unit monitor the concentration and flow rate of the sintering flue gas inside the inlet pipe in real time and transmit the signal to the control unit.

[0020] S2. The control unit determines the amount of sintering flue gas entering the spray tower within a specific time period based on the signals from the gas concentration detection unit and the gas flow rate detection unit.

[0021] S3. When the amount of sintering flue gas is small, the control unit controls the drive unit to work, so that the gear drives the internal gear ring to rotate. At this time, the incomplete gear drives the blocking blade to rotate, thereby adjusting the size of the exhaust channel.

[0022] S4. The control unit controls the output end of the telescopic component to retract. Under the action of the connecting rod, hinge seat 2, connecting pull rod, hinge seat 1 and multiple connecting rods, multiple rotating frames rotate simultaneously, thereby adjusting the tilt angle of multiple spray heads 1.

[0023] S5. The gas passes through the exhaust channel and moves between the mounting ring seat and the spray assembly. At this time, spray head one and spray head two spray out spray liquid and perform treatment on the sintering flue gas.

[0024] Preferably, the duration for which the control unit controls the drive unit to operate is based on the following formula:

[0025]

[0026] In the formula, T represents the working time of the driving component;

[0027] This is the base time for driver startup;

[0028] The minimum threshold for the total amount of sintering flue gas when the preset start-up angle adjustment component and gas gathering component are working;

[0029] The total amount of sintering flue gas entering the spray tower within a certain time period t. ,in The instantaneous gas concentration detected by the gas concentration detection unit. The instantaneous gas velocity detected by the gas flow rate detection unit is r, which is the radius of the inlet pipe.

[0030] The average total amount of sintering flue gas entering the spray tower within a certain time period t. ;

[0031] Preset angle coefficients for the driving components;

[0032] This is the fluctuation correction factor;

[0033] The output shaft angular velocity of the driving component.

[0034] Preferably, the adjustment of the tilt angle of the plurality of spray heads is based on the following formula:

[0035]

[0036] In the formula The tilt angle of the spray head closest to the center of the spray tower;

[0037] This is the preset angle correction coefficient;

[0038] This is the distance coefficient for the expansion joint;

[0039] The maximum tilt angle of the spray head closest to the center of the spray tower;

[0040] This is the maximum retracted length of the telescopic component.

[0041] The beneficial effects of this invention are:

[0042] 1. The flue gas volume is monitored in real time by the gas concentration detection unit and the flow rate detection unit. Combined with the linkage control of the angle adjustment component and the gas gathering component, when the flue gas volume is small, the flue gas is gathered to the middle of the tower by the blocking blades. The tilt angle of the first edge spray head is adjusted so that the spray liquid accurately covers the gathered flue gas area, avoiding waste of spray liquid due to the large area not contacting the flue gas. At the same time, the second spray head with a fixed angle in the middle works continuously to ensure that the spray liquid reacts fully with the flue gas. Compared with traditional devices, the utilization rate of spray liquid is significantly improved, reducing spray liquid consumption and subsequent waste liquid treatment costs.

[0043] 2. The linkage structure, through linkages with different tilt angles, enables the spray head to form a gradient coverage range. Combined with the exhaust channel design of the gas gathering component, it achieves comprehensive coverage of the gathered flue gas by the spray liquid, allowing more spray liquid to come into contact with the flue gas, thereby making the flue gas treatment effect better. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the structure of the present invention.

[0045] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0046] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0047] Figure 4 This is a schematic diagram of the structure of the spray assembly of the present invention.

[0048] Figure 5 This is a structural schematic diagram of the spray pipe and its connecting components of the present invention.

[0049] Figure 6 This is a first-view structural schematic diagram of the displacement component of the present invention.

[0050] Figure 7 This is a second-view structural schematic diagram of the displacement component of the present invention.

[0051] Figure 8 This is a schematic diagram of the structure of the gas gathering component of the present invention.

[0052] Figure 9 This is a cross-sectional structural diagram of the gas gathering component of the present invention.

[0053] Figure 10 This is a schematic diagram of the exploded structure of the gas gathering component of the present invention.

[0054] Figure 11 This is a schematic diagram of the internal gear ring of the present invention.

[0055] Figure 12 This is the present invention. Figure 3 A magnified structural diagram of point A in the middle.

[0056] Figure label:

[0057] 10. Spray tower; 11. Flow guide hood; 20. Angle adjustment assembly; 21. Rotating frame; 22. Connecting rod; 23. Support block; 24. Telescopic component; 25. Hinge seat one; 26. Connecting rod; 27. Hinge seat two; 28. Connecting rod; 29. ​​Spray pipe; 291. Spray head one; 292. Spray head two; 293. Hose; 210. Diverter pipe; 211. Delivery pump; 30. Gas gathering assembly; 31. Mounting ring seat; 311. Rotating groove; 32. Incomplete gear; 33. Baffle blade; 331. Exhaust channel; 34. Flow guide seat; 341. Flow guide ring one; 342. Flow guide ring two; 343. Flow guide channel; 35. Driving component; 36. Rotating rod; 37. Internal gear ring; 38. Gear; 40. Inlet pipe; 41. Gas concentration detection unit; 42. Gas flow rate detection unit. Detailed Implementation

[0058] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0059] like Figures 1 to 12 As shown, a comprehensive sintering flue gas treatment device of the present invention includes a spray tower 10, at least one set of spray components, an angle adjustment component 20, a gas gathering component 30, and an air inlet pipe 40. The spray components are installed on the spray tower 10. If the number of spray components is greater than or equal to two sets, the spray height of each set of spray components is different, used for spraying treatment of sintering flue gas. The spray components include multiple spray pipes 29. If the number of spray components is greater than or equal to two sets, from a top view, the spray pipes 29 included in each set of spray components have an included angle. Multiple hoses 293 and multiple spray heads 292 are connected to the spray pipes 29. The ends of the multiple hoses 293 are all connected to spray heads 291. Spray heads 291 are located near the inner wall of the spray pipe 29 near the inner wall of the spray tower 10, and multiple spray heads 292 are located near the center of the spray pipe 29 near the center of the spray tower 10. The angle adjustment component 20 includes multiple spray heads 291. The spray tower 10 includes a connecting rod structure and a displacement assembly connecting multiple connecting rod structures. The connecting rod structure is used to adjust the angle of multiple spray heads 291, and the displacement assembly is used to drive multiple connecting rod structures to move simultaneously. The gas gathering assembly 30 is located inside the spray tower 10 and below the spray assembly. The gas gathering assembly is used to gather sintering flue gas and, in cooperation with the angle adjustment assembly 20, to better treat the flue gas. The inlet pipe 40 is equipped with a gas concentration detection unit 41 and a gas flow rate detection unit 42. The gas concentration detection unit 41 and the gas flow rate detection unit 42 are sensors that can detect gas concentration and flow rate. The spray tower 10 is equipped with a control unit (not shown in the figure). The gas concentration detection unit 41 and the gas flow rate detection unit 42 are both electrically connected to the control unit. The control unit is connected to the displacement assembly and the gas gathering assembly and is used to adjust the gathering range and the rotation angle of the spray head 291.

[0060] Spray head 291 is an adjustable-angle spray head, while spray head 292 is a non-adjustable-angle spray head. During spraying, the gas concentration detection unit 41 and the gas flow rate detection unit 42 can monitor the concentration and flow rate of the sintering flue gas inside the inlet pipe 40 in real time. By coordinating with the diameter of the inlet pipe 40, they can monitor the total amount of sintering flue gas entering the spray tower 10 within a certain time period. By setting a minimum threshold for the total amount of sintering flue gas when the start-up angle adjustment component 20 and the gas gathering component 30 are working, the amount of sintering flue gas entering the spray tower is monitored. When the amount of sintering flue gas inside tower 10 reaches or falls below the set minimum threshold, the control unit will control the angle adjustment component 20 and the gas gathering component 30 to work. By adjusting the gathering range of the gas gathering component 30, the sintering flue gas entering the spray tower 10 moves towards the center of the spray tower 10 and forms a certain range of flue gas. At this time, the position of the spray head 291 is adjusted by the angle adjustment component 20 so that the spray liquid sprayed by the spray head 291 can come into contact with the gathered sintering flue gas, thus avoiding the waste of spray liquid.

[0061] To further control the amount of flue gas input, an electric regulating valve is installed on the inlet pipe, and the electric regulating valve is electrically connected to the control unit. By setting a maximum threshold for the total amount of sintering flue gas entering the spray tower 10, when the amount of sintering flue gas entering the spray tower 10 reaches or exceeds the maximum threshold, the control unit controls the electric regulating valve to reduce the amount of sintering flue gas entering the spray tower 10 through the inlet pipe 40, so as to avoid the situation where the spray assembly has a poor treatment effect on the sintering flue gas.

[0062] It should be noted that the end of the air inlet pipe 40 away from the spray tower 10 is connected to the pretreatment structure for sintering flue gas. The pretreatment structure includes a filtration and dust removal structure to remove particulate matter and other impurities from the sintering flue gas. The top of the spray tower 10 is connected to a posttreatment structure through a pipe. The posttreatment structure includes structures for deep treatment and detection of the sintering flue gas to ensure that the emitted flue gas meets emission standards.

[0063] like Figures 8 to 12 The gas gathering component 30 includes a mounting ring seat 31. A plurality of incomplete gears 32 are rotatably arranged on one side of the mounting ring seat 31. A shielding blade 33 is fixedly connected to the outer surface of each of the plurality of incomplete gears 32. An exhaust channel 331 is formed between the plurality of shielding blades 33. A drive component is provided between the mounting ring seat 31 and the spray tower 10. The drive component is used to drive the plurality of incomplete gears 32 to rotate simultaneously. A flow guide seat 34 is connected to the bottom side of the mounting ring seat 31.

[0064] The drive assembly includes a drive member 35 mounted on the spray tower 10 and a rotating groove 311 formed on the top side of the mounting ring seat 31. The rotating groove 311 has multiple rotating rods 36 inside, and an internal gear ring 37 is mounted on the top of the multiple rotating rods 36. An incomplete gear 32 meshes with the internal gear ring 37, and the thickness of the incomplete gear 32 is less than the thickness of the internal gear ring 37. The output shaft of the drive member 35 is connected to a gear 38 that meshes with the internal gear ring 37.

[0065] Under normal conditions, the shielding blade 33 is positioned to not obstruct the inner diameter of the mounting ring seat 31. At this time, the sintering flue gas passes through the interior of the mounting ring seat 31 and enters above it. The spray liquid from spray head 291 and spray head 292 contacts and treats the sintering flue gas. If the amount of sintering flue gas entering the spray tower 10 is low, the control unit controls the drive component 35 to operate, causing the gear 38 to drive the internal gear ring 37 to rotate a specific direction. As the internal gear ring 37 rotates, the incomplete gear 32 drives the blocking blades 33 to rotate and enter the inner ring of the mounting ring seat 31. The inner ring of the mounting ring seat 31 is blocked by multiple blocking blades 33, thereby forming an exhaust channel 331. At this time, the sintering flue gas enters the area above the mounting ring seat 31 from the exhaust channel 331 under the action of the guide seat 34. The size of the exhaust channel 331 is the area range where the sintering flue gas moves upward. It can gather the sintering flue gas together and process it when the amount of sintering flue gas is small.

[0066] The rotating groove 311 is an annular groove, and the cross-sectional shape of both the rotating groove 311 and the rotating rod 36 is T-shaped. The rotating groove 311 and the rotating rod 36 can prevent the internal gear ring 37 from being displaced in the vertical direction during rotation, thus ensuring the positional stability of the internal gear ring 37 and the meshing stability between the internal gear ring 37, the incomplete gear 32 and the gear 38.

[0067] It should be noted that multiple shielding blades 33 are fitted together and slidably connected, and a sealing block (not shown in the figure) is provided between each incomplete gear 32 and the mounting ring seat 31. The sealing block does not obstruct the rotation of the shielding blades 33, thereby preventing sintering flue gas from entering the space between the incomplete gear 32 and the mounting ring seat 31 and entering the space above the mounting ring seat 31. A shielding cover (not shown in the figure) is installed inside the spray tower 10. The shielding cover protects the structure of the drive component 35 located inside the spray tower 10, preventing the spray liquid from directly contacting the drive component 35 and ensuring the service life of the drive component 35.

[0068] like Figures 9 to 12The flow guide seat 34 includes a first flow guide ring 341 and a second flow guide ring 342. The first flow guide ring 341 is installed on the bottom side of the mounting ring seat 31, and the second flow guide ring 342 is installed on the inner wall of the mounting ring seat 31. The thickness of the second flow guide ring 342 is greater than the thickness of the mounting ring seat 31. A flow guide channel 343 is formed between the second flow guide ring 342 and the first flow guide ring 341. The cross-sectional shape of the flow guide channel 343 is an outwardly convex arc. Under the action of the flow guide seat 34, the first flow guide ring 341 and the second flow guide ring 342, the sintering flue gas can move towards the center of the mounting ring seat 31. The second flow guide ring 342 can block the sintering flue gas and prevent the sintering flue gas from flowing into the gap between the incomplete gear 32 and the mounting ring seat 31.

[0069] like Figures 4 to 7 The linkage structure includes a rotating frame 21 connected to multiple spray heads 291. Each rotating frame 21 is rotatably connected to a connecting rod 22. The multiple connecting rods 22 are all inclined and the angles between the multiple connecting rods 22 and the horizontal direction are different, so that the angles of two adjacent rotating frames 21 are different when rotating, thereby adjusting the different tilt angles of the spray heads 291 connected to the rotating frame 21. A support block 23 is connected to the spray pipe 29, and the rotating frame 21 is rotatably connected to the support block 23.

[0070] The angle between the connecting rod 22 closest to the center of the spray tower 10 and the horizontal direction is ∠1; the angle between the connecting rod 22 adjacent to it and the horizontal direction is ∠2; and so on, with the angles of the connecting rods closer to the inner wall of the spray tower 10 being ∠3, ∠4, etc. Figure 7 As shown, taking the angle between the three connecting rods 22 and the horizontal direction as an example, ∠1 > ∠2 > ∠3. This results in different tilt angles among the multiple spray heads 291 during the rotation of the rotating frame 21 and the spray head 291 caused by the connecting rods 22. The closer the spray head 291 is to the center of the spray tower 10, the smaller its tilt angle; conversely, the farther away from the center of the spray tower 10, the larger its tilt angle. This allows the spray head 291 to effectively distribute the spray liquid... The spray liquid is precisely delivered to the top of the exhaust channel 331, allowing it to come into complete contact with the sintering flue gas and treat it. This avoids the situation where the spray liquid located at the edge of the spray tower 10 is not utilized, thus improving the utilization rate of the spray liquid. Furthermore, multiple spray heads 292 are located in the middle area of ​​the spray tower 10. The coordinated arrangement of spray heads 291 and 292 ensures that the spray liquid is fully utilized, resulting in a better treatment effect on the sintering flue gas.

[0071] like Figures 4 to 7The displacement assembly includes a telescopic member 24 installed outside the spray tower 10. The output end of the telescopic member 24 is connected to a hinge seat 25. A connecting rod 26 is hinged to the end of the hinge seat 25. A second hinge seat 27 is hinged to the end of the connecting rod 26 away from the first hinge seat 25. A connecting rod 28 is connected to one side of the second hinge seat 27. The connecting rod 28 is connected to a rotating frame 21 on multiple spray pipes 29 located closest to the center of the spray tower 10, thereby driving multiple rotating frames 21 to rotate simultaneously.

[0072] After adjusting the size of the exhaust channel 331, the control unit will control the output end of the telescopic component 24 to retract. Under the action of the connecting rod 28, the second hinge seat 27, the connecting pull rod 26, the first hinge seat 25 and multiple connecting rods 22, multiple rotating frames 21 will rotate simultaneously and rotate at different angles, thereby causing multiple spray heads 291 to tilt at different angles. This allows the multiple spray heads 291 to deliver the spray liquid to the area above the exhaust channel 331, and the spraying range of the multiple spray heads 291 is larger than the size of the exhaust channel 331. This allows the sintering flue gas to be fully sprayed after passing through the interior of the exhaust channel 331, avoiding the situation where there is sintering flue gas that has not been sprayed.

[0073] like Figures 1 to 4 The spray assembly also includes a diversion pipe 210 connected to multiple spray pipes 29. The end of the diversion pipe 210 is connected to a delivery pump 211 via a pipe. The inlet of the delivery pump 211 is connected to the bottom of the spray tower 10 via a pipe.

[0074] The spray liquid located at the bottom of the spray tower 10 is transported to the interior of multiple spray pipes 29 through the transfer pump 211 and the diversion pipe 210. Then, it is sprayed out through the first spray head 291 and the second spray head 292 to treat the sintering flue gas. A waste liquid treatment structure can be connected between the transfer pump 211 and the spray tower 10. The waste liquid treatment structure performs treatment processes such as water quality adjustment and purification on the spray liquid after treating the sintering flue gas, so that the spray liquid after being treated by the waste liquid treatment structure can normally meet the treatment requirements of the sintering flue gas. Alkaline liquid is sprayed out through the first spray head 291 and the second spray head 292, thereby removing and separating acidic pollutants in the sintering flue gas.

[0075] like Figure 3The spray tower 10 is equipped with a flow guide shroud 11. The bottom diameter of the flow guide shroud 11 is smaller than the top diameter of the flow guide shroud 11, and the flow guide shroud 11 is located above the incomplete gear 32. The flow guide shroud 11 can not only guide the spray liquid, allowing it to move downward along the inner wall of the flow guide shroud 11, so that the spray liquid moves towards the middle of the spray tower 10 and enters the bottom of the spray tower 10 through the mounting ring seat 31, but also protect the incomplete gear 32, the internal gear ring 37, and the gear 38, avoiding direct contact between the spray liquid and the incomplete gear 32, the internal gear ring 37, and the gear 38, thus ensuring the service life of the incomplete gear 32, the internal gear ring 37, and the gear 38. Moreover, the sintering flue gas can pass through the bottom of the flow guide shroud 11. The spray liquid flowing down from the flow guide shroud 11 can treat the sintering flue gas passing through the bottom of the flow guide shroud 11, thereby making better use of the spray liquid.

[0076] A comprehensive treatment process for sintering flue gas includes the following steps:

[0077] S1. The sintering flue gas is transported to the interior of the spray tower 10 through the inlet pipe 40. The gas concentration detection unit 41 and the gas flow rate detection unit 42 monitor the concentration and flow rate of the sintering flue gas inside the inlet pipe 40 in real time and transmit the signal to the control unit.

[0078] S2. The control unit determines the amount of sintering flue gas entering the spray tower 10 within a specific time period based on the signals from the gas concentration detection unit 41 and the gas flow rate detection unit 42.

[0079] S3. When the amount of sintering flue gas is small, the control unit controls the drive unit 35 to work, so that the gear 38 drives the internal gear ring 37 to rotate. At this time, the incomplete gear 32 drives the shielding blade 33 to rotate, thereby adjusting the size of the exhaust channel 331.

[0080] S4. The control unit controls the output end of the telescopic component 24 to retract. Under the action of the connecting rod 28, the second hinge seat 27, the connecting pull rod 26, the first hinge seat 25 and multiple connecting rods 22, multiple rotating frames 21 rotate simultaneously, thereby adjusting the tilt angle of multiple spray heads 291.

[0081] S5. The gas passes through the exhaust channel 331 and moves between the mounting ring seat 31 and the spray assembly. At this time, the spray head 291 and the spray head 292 spray out spray liquid and perform treatment on the sintering flue gas.

[0082] The duration for which the control unit controls the drive unit 35 to operate is based on the following formula:

[0083]

[0084] In the formula, T represents the working time of the drive component 35. The base time for driver 35 to start. To preset the minimum threshold for the total amount of sintering flue gas when the start-up angle adjustment component 20 and the gas gathering component 30 are working, The total amount of sintering flue gas entering the spray tower 10 within a certain time period t. ,in The instantaneous gas concentration detected by the gas concentration detection unit 41. The instantaneous gas velocity is detected by the gas flow rate detection unit 42, and r is the radius of the inlet pipe 40. The average total amount of sintering flue gas entering the spray tower 10 within a certain time period t. , A preset angle coefficient is provided for the drive component 35. This is the fluctuation correction factor. The output shaft angular velocity of the drive unit 35.

[0085] The operating time T of the drive component 35 is directly related to the rotation angle of the blocking blade 33. The value represents the preset engagement preparation time to ensure transmission stability. If the flue gas input through the inlet pipe 40 is unstable, The cumulative integral of the absolute deviation between the total flue gas volume and the minimum threshold over the time interval from 0 to t is used to reflect the continuous impact of flue gas fluctuations. > and When it is small, then T= That is, the shielding blade 33 does not rotate and remains in its initial state. When it is too big, This is to ensure that the rotation angle of the shielding blade 33 does not exceed the limit rotation angle.

[0086] The tilt angle of the multiple spray heads 291 is adjusted based on the following formula:

[0087]

[0088] In the formula The tilt angle of the spray head 291, which is closest to the center of the spray tower 10. The preset angle correction coefficient is used to compensate for the transmission error of link 22. This is the distance coefficient for telescopic component 24. The maximum tilt angle of the spray head 291, which is closest to the center of the spray tower 10, is a preset angle. This is the maximum retracted length of the telescopic component 24.

[0089] Since the length and tilt angle between two adjacent connecting rods 22 are fixed, after controlling and adjusting the tilt angle of the spray head 291 closest to the center of the spray tower 10, the other spray heads 291 adjust their angles accordingly. Since the tilt angles between two adjacent connecting rods 22 are different, the other spray heads 291 adjust their angles accordingly.

[0090] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0091] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0092] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A comprehensive treatment device for sintering flue gas, characterized in that, include: A spray tower (10) is equipped with a control unit; At least one set of spray assembly is installed inside the spray tower (10). The spray assembly includes multiple spray pipes (29), each spray pipe (29) is connected to multiple hoses (293) and multiple spray heads (292), and the ends of the multiple hoses (293) are connected to spray heads (291). Each spray pipe (29) is provided with a connecting rod structure, which is connected to the spray heads (291). The connecting rod structure is used to adjust the angle of the multiple spray heads (291). It includes a rotating frame (21), a connecting rod (22) and a support block (23). Each spray head (291) is connected to a rotating frame (21), and a connecting rod (22) is provided between multiple adjacent rotating frames (21). Multiple connecting rods (22) are inclined, and the angles between multiple connecting rods (22) and the horizontal direction are different. There are multiple support blocks (23). The rotating frame (21) and the support block (23) are rotatably connected, and the rotating frame (21) and the support block (23) correspond one-to-one. The displacement assembly is installed on the spray tower (10). The displacement assembly is connected to multiple linkage structures. The displacement assembly is used to drive multiple linkage structures to move simultaneously. The displacement assembly includes a telescopic component (24), a first hinge seat (25), a connecting rod (26), a second hinge seat (27), and a connecting rod (28). The telescopic component (24) is installed on the spray tower (10). The first hinge seat (25) is connected to the output end of the telescopic component (24). One end of the connecting rod (26) is hinged to the first hinge seat (25). The other end of the connecting rod (26) is hinged to the second hinge seat (27). The connecting rod (28) is connected to the rotating frame (21) located closest to the center of the spray tower (10). The second hinge seat (27) is connected to the connecting rod (28). A gas gathering component (30) is disposed inside the spray tower (10) and below the spray component. The gas gathering component is used to gather sintering flue gas. The gas gathering component (30) includes a mounting ring seat (31), on which multiple shielding blades (33) are provided. An exhaust channel (331) is formed between the multiple shielding blades (33). The gas gathering component (30) also includes an incomplete gear (32), a drive component and a flow guide seat (34). There are multiple incomplete gears (32). The incomplete gears (32) are connected to the shielding blades (33). The incomplete gears (32) correspond one-to-one with the shielding blades (33). The drive component is disposed between the mounting ring seat (31) and the spray tower (10). The drive component is used to drive the multiple incomplete gears (32) to rotate simultaneously. An air inlet pipe (40) is connected to a spray tower (10), and a gas concentration detection unit (41) and a gas flow rate detection unit (42) are installed on the air inlet pipe (40).

2. The sintering flue gas comprehensive treatment device according to claim 1, characterized in that, The drive assembly includes a drive component (35), a rotating groove (311), a rotating rod (36), an internal gear ring (37), and a gear (38). The rotating groove (311) is set on the mounting ring seat (31). There are multiple rotating rods (36), all of which are set inside the rotating groove (311). The ends of the multiple rotating rods (36) are connected to one side of the internal gear ring (37). The incomplete gear (32) and the gear (38) are meshed with the internal gear ring (37). The drive component (35) is installed on the spray tower (10), and the output shaft of the drive component (35) is located inside the spray tower (10). The output shaft of the drive component (35) is connected to the gear (38).

3. The sintering flue gas comprehensive treatment device according to claim 2, characterized in that, The flow guide seat (34) includes a first flow guide ring (341) and a second flow guide ring (342). The first flow guide ring (341) is installed on the bottom side of the mounting ring seat (31), and the second flow guide ring (342) is installed on the inner wall of the mounting ring seat (31). The thickness of the second flow guide ring (342) is greater than the thickness of the mounting ring seat (31). A flow guide channel (343) is formed between the second flow guide ring (342) and the first flow guide ring (341). The cross-sectional shape of the flow guide channel (343) is an outwardly convex arc.

4. The sintering flue gas comprehensive treatment device according to claim 3, characterized in that, The spray tower (10) is equipped with a flow guide shroud (11) inside. The bottom diameter of the flow guide shroud (11) is smaller than the top diameter of the flow guide shroud (11), and the flow guide shroud (11) is located above the incomplete gear (32).

5. A comprehensive sintering flue gas treatment process, applied to the comprehensive sintering flue gas treatment device described in claim 4, characterized in that, It includes the following steps: S1. The sintering flue gas is transported to the interior of the spray tower (10) through the inlet pipe (40). The gas concentration detection unit (41) and the gas flow rate detection unit (42) monitor the concentration and flow rate of the sintering flue gas inside the inlet pipe (40) in real time and transmit the signal to the control unit. S2. The control unit determines the amount of sintering flue gas entering the spray tower (10) within a specific time period based on the signals from the gas concentration detection unit (41) and the gas flow rate detection unit (42). S3. When the amount of sintering flue gas is small, the control unit controls the drive unit (35) to work, so that the gear (38) drives the internal gear ring (37) to rotate. At this time, the incomplete gear (32) drives the shielding blade (33) to rotate, thereby adjusting the size of the exhaust channel (331). S4. The control unit controls the output end of the telescopic component (24) to retract. Under the action of the connecting rod (28), the second hinge seat (27), the connecting rod (26), the first hinge seat (25) and multiple connecting rods (22), multiple rotating frames (21) rotate simultaneously, thereby adjusting the tilt angle of multiple spray heads (291). S5. The gas passes through the exhaust channel (331) and moves between the mounting ring seat (31) and the spray assembly. At this time, the first spray head (291) and the second spray head (292) spray out spray liquid and perform treatment operation on the sintering flue gas.

6. The comprehensive treatment process for sintering flue gas according to claim 5, characterized in that, The duration for which the control unit controls the drive (35) to operate is based on the following formula: In the formula, T is the working time of the driving component (35); The base time for starting the drive unit (35); The minimum threshold for the total amount of sintering flue gas when the preset start-up angle adjustment component (20) and gas gathering component (30) are working; Let t be the total amount of sintering flue gas entering the spray tower (10) within a certain time period. ,in The instantaneous gas concentration detected by the gas concentration detection unit (41) The instantaneous gas velocity detected by the gas flow rate detection unit (42) is r, which is the radius of the inlet pipe (40). Let t be the average total amount of sintering flue gas entering the spray tower (10) within a certain time period. ; A preset angle coefficient is provided for the drive component (35); This is the fluctuation correction factor; The output shaft angular velocity of the drive unit (35).

7. The comprehensive treatment process for sintering flue gas according to claim 6, characterized in that, The adjustment of the tilt angle of the multiple spray heads (291) is based on the following formula: In the formula The tilt angle of the spray head 1 (291) closest to the center of the spray tower (10); This is the preset angle correction coefficient; The distance coefficient for the telescopic component (24); The maximum tilt angle of the spray head 1 (291) closest to the center of the spray tower (10); The maximum retracted length of the telescopic component (24) is given.

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