A spray desulfurization tower

Abstract

The present invention relates to the technical field of desulfurization towers, and discloses a spray desulfurization tower, comprising a desulfurization tower body, and further comprising: a liquid collecting container, the liquid collecting container being fixed at the top position of the inner surface of the desulfurization tower body, the liquid collecting container being provided with an inclined surface; a guide plate, the guide plate being fixed at the top position of the inner surface of the desulfurization tower body, the guide plate being arranged opposite to the liquid collecting container, the guide plate being also provided with an inclined surface, and the inclined direction of the guide plate inclined surface is opposite to the inclined direction of the liquid collecting container inclined surface; a defoaming net cylinder, the defoaming net cylinder being rotatably mounted at the top position of the inner surface of the desulfurization tower body, the two ends of the defoaming net cylinder being in a closed structure, and a plurality of meshes being evenly distributed on its outer circumference. When the present invention is in use, the scraper bar can scrape off the liquid droplets attached to the outer surface of the defoaming net cylinder when it is swung down, effectively promoting the aggregation of droplets, which helps the droplets to quickly form and drip, thereby improving the aggregation efficiency of the droplets.

Description

Technical Field

[0001] The present invention relates to the technical field of desulfurization towers, in particular to a spray desulfurization tower. Background Art

[0002] Spray desulfurization tower is a device commonly used for flue gas desulfurization, mainly used to remove sulfur dioxide produced during the combustion process. The equipment removes sulfur dioxide from the flue gas through chemical reaction or physical absorption by contacting the flue gas with the spray liquid, thereby reducing pollution to the environment.

[0003] After searching, Chinese patent publication number CN215388671U discloses a new desulfurization tower, including a desulfurization tower, a circulation pump, and a spray pipe. The desulfurization tower is provided with a smoke exhaust port at the top and a liquid drain port at the bottom. A smoke partition wall and a support pipe are provided on the inner side of the desulfurization tower. The circulation pump is arranged between the desulfurization tower and the spray pipe. The spray pipe extends to the inner side of the desulfurization tower. A nozzle is provided at the extended end of the spray pipe. The inner side wall of the desulfurization tower, the smoke partition wall, and the outer side of the support pipe are all provided with an adhesive layer, and a wear-resistant composite ceramic layer is provided on the adhesive layer. The above solution has a simple structure, extends the service life of the new desulfurization tower, and reduces maintenance costs. However, the above solution still has the following shortcomings when used in practice:

[0004] A defoamer is typically installed at the top of a desulfurization tower to remove residual absorbent from the gas. There are various types of defoamers available, with wire mesh demisters being widely used due to their superior defoaming effectiveness. Existing wire mesh demisters are typically disc-shaped, and their disc structure allows mist to easily accumulate inside the demister, slowing the droplet's descent. This causes mist to accumulate inside the demister, increasing resistance and reducing defoaming efficiency. Furthermore, after condensing into droplets, the floating foam will directly drip down, where they will re-engage with the rising gas, causing secondary entrainment. This re-entrainment of droplets increases the droplet content in the gas, reducing both defoaming efficiency and quality.

[0005] Therefore, it is necessary to design a spray desulfurization tower to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a spray desulfurization tower.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A spray desulfurization tower includes a desulfurization tower body and further includes:

[0009] A liquid collecting container, the liquid collecting container is fixed at the top of the inner surface of the desulfurization tower body, and the liquid collecting container is provided with an inclined surface;

[0010] A guide plate is fixed at the top of the inner surface of the desulfurization tower body. The guide plate is arranged opposite to the liquid collecting container. The guide plate is also provided with an inclined surface, and the inclination direction of the guide plate inclined surface is opposite to the inclination direction of the inclined surface of the liquid collecting container.

[0011] A defoaming net cylinder is rotatably mounted on the top of the desulfurization tower body. Both ends of the defoaming net cylinder are closed structures, and a plurality of meshes are evenly distributed on its outer circumference. The defoaming net cylinder is arranged facing the area between the liquid collecting container and the guide plate.

[0012] A driving structure, wherein the driving structure is arranged inside the desulfurization tower body and at one end of the defoaming net cylinder, and the defoaming net cylinder is driven by the driving structure;

[0013] A foam scraping structure is provided inside the desulfurization tower body and is placed on one side of the foam removal net cylinder;

[0014] A swing structure, wherein the swing structure is arranged inside the desulfurization tower body and driven by the driving structure, wherein the swing structure is arranged on one side of the driving structure;

[0015] The control structure is arranged inside the desulfurization tower body, and the control structure is arranged opposite to the defoaming net cylinder.

[0016] As a preferred technical solution of the present invention, the driving structure includes:

[0017] A motor, the motor being mounted on the inner surface of the desulfurization tower body;

[0018] A drive shaft, wherein the drive shaft is fixed to the output shaft of the motor;

[0019] A driving gear, wherein the driving gear is fixedly connected to the driving shaft;

[0020] A shaft rod, the shaft rod being fixed to one end of the defoaming net cylinder;

[0021] The driven gear is fixedly connected to the shaft, and the driving gear and the driven gear are meshed with each other.

[0022] As a preferred technical solution of the present invention, the scraping structure includes:

[0023] A mounting frame, wherein the mounting frame has an L-shaped structure;

[0024] A sliding plate is slidably mounted on the mounting frame and is placed on one side of the defoaming net cylinder;

[0025] A scraper bar is provided on a side of the sliding plate close to the defoaming net cylinder;

[0026] Two slideways, both of which are provided on the mounting frame;

[0027] A limiting rod, wherein the limiting rod has a U-shaped structure and is fixed to the sliding plate, and the two ends of the limiting rod are respectively slidably arranged in two slideways;

[0028] Two tension springs, one end of each of the tension springs is connected to the mounting frame, and the other end of each of the tension springs is connected to the sliding plate.

[0029] As a preferred technical solution of the present invention, the swing structure includes:

[0030] A bracket, the bracket being fixed to the inner surface of the desulfurization tower body, and the bracket being provided with a mounting opening;

[0031] a rotating cylinder, the rotating cylinder passing through the mounting opening and being rotatably mounted in the mounting opening, the rotating cylinder being fixedly connected to one end of the mounting frame;

[0032] a ring gear fixedly connected to the rotating cylinder;

[0033] a rack, the rack meshing with the ring gear;

[0034] The transmission part is placed inside the desulfurization tower body and is connected to the rack.

[0035] As a preferred technical solution of the present invention, the transmission member includes:

[0036] A fixing frame, wherein the fixing frame is fixed inside the desulfurization tower body;

[0037] A reciprocating screw rod, the reciprocating screw rod being rotatably mounted on a fixed frame;

[0038] A moving block, wherein the moving block is threadedly sleeved on the reciprocating screw, and the bottom surface of the moving block is in contact with the side surface of the fixed frame, and the top of the moving block is fixedly connected to the rack;

[0039] A connecting rod, the connecting rod being fixed to one end of the reciprocating screw;

[0040] Bevel gear 1, fixedly sleeved on the driving shaft;

[0041] The second bevel gear is fixedly sleeved on the connecting rod and meshes with the first bevel gear.

[0042] As a preferred technical solution of the present invention, the control structure includes:

[0043] A connecting frame, wherein the connecting frame is L-shaped and one end of the connecting frame is fixed to the mounting frame;

[0044] A mounting plate, wherein the mounting plate is fixed on the connecting frame;

[0045] an electromagnet, wherein the electromagnet is mounted on a mounting plate;

[0046] A magnetic plate, the magnetic plate is fixed on the sliding plate, and the magnetic plate is made of magnetic material;

[0047] A control switch, the control switch being mounted on the mounting plate and electrically connected to the electromagnet;

[0048] Two trigger sources are installed on the inner surface of the desulfurization tower body, and the two trigger sources are arranged vertically opposite to each other.

[0049] As a preferred technical solution of the present invention, the scraper strip is made of rubber material, and the scraper strip is connected to the sliding plate via a detachable structure.

[0050] As a preferred technical solution of the present invention, the side surface of the mounting bracket and the side surface of the sliding plate are in contact with each other.

[0051] As a preferred technical solution of the present invention, the shaft, the rotating cylinder and the defoaming net cylinder are coaxially arranged.

[0052] As a preferred technical solution of the present invention, the transmission ratio of the driving gear to the driven gear is less than 1, the transmission ratio of the ring gear to the rack is less than 1, and the transmission ratio of the driving gear to the driven gear is greater than the transmission ratio of the ring gear to the rack.

[0053] The present invention has the following beneficial effects:

[0054] 1. The scraper can scrape off the liquid droplets attached to the outer surface of the foam removal net when it swings down, effectively promoting the aggregation of droplets, while helping the droplets to form and drip quickly, thereby improving the efficiency of droplet aggregation;

[0055] 2. The downward swing of the scraper can collect the liquid droplets on the surface of the defoaming net cylinder. This not only prevents the droplets from falling directly downward, but also prevents the droplets from re-contacting the rising gas, thereby reducing the possibility of secondary entrainment. By scraping off the liquid droplets attached to the outer surface of the defoaming net cylinder and collecting them, this design effectively improves the defoaming efficiency and effect, reduces the situation of re-entrainment of droplets, and ensures the defoaming effect and efficiency of the device for gas;

[0056] 3. Since the swing speed of the sliding plate is greater than the rotation speed of the defoaming net cylinder, the sliding plate can swing back and forth at a relatively high frequency, which can increase the cleaning frequency of the liquid droplets attached to the outer surface of the defoaming net cylinder and improve the defoaming effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 This is a structural schematic diagram of a spray desulfurization tower proposed by the present invention;

[0058] Figure 2 This is a schematic diagram of the cross-sectional structure of the desulfurization tower body;

[0059] Figure 3 for Figure 2 A magnified view of the structure at point A;

[0060] Figure 4 It is a structural diagram of the foam removal net cylinder, driving structure, foam scraping structure and swing structure;

[0061] Figure 5 This is an exploded view of the foam removal net cylinder, driving structure, foam scraping structure and swing structure;

[0062] Figure 6 for Figure 4 A magnified view of the structure at point B;

[0063] Figure 7 Schematic diagram of the structure of the scraping structure;

[0064] Figure 8 It is a schematic diagram of the planar structure of the desulfurization tower body, defoaming net cylinder, scraping structure and two trigger sources.

[0065] In the figure: 1 desulfurization tower body, 2 liquid collecting container, 3 guide plate, 4 defoaming net cylinder, 51 motor, 52 drive shaft, 53 drive gear, 54 shaft, 55 driven gear, 61 mounting frame, 62 sliding plate, 63 scraper, 64 slideway, 65 limit rod, 66 tension spring, 71 bracket, 72 rotating cylinder, 73 ring gear, 74 rack, 75 transmission part, 751 fixed frame, 752 reciprocating screw, 753 moving block, 754 connecting rod, 755 bevel gear 1, 756 bevel gear 2, 81 connecting frame, 82 mounting plate, 83 electromagnet, 84 magnetic plate, 85 control switch, 86 trigger source. DETAILED DESCRIPTION

[0066] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0067] Reference Figure 1-8The hopper 3 is fixed on the top of the desulfurization tower body 1, and the hopper 3 is provided with an inclined surface. The hopper 3 is fixed on the top of the desulfurization tower body 1, and the hopper 3 is provided with an inclined surface. The inclined surface of the hopper 3 is opposite to the inclined surface of the desulfurization tower body 1.

[0068] The device also includes a driving structure, which is arranged inside the desulfurization tower body 1. The driving structure is arranged at one end of the defoaming net cylinder 4. The defoaming net cylinder 4 is driven by the driving structure. The driving structure includes: a motor 51, which is mounted on the inner surface of the desulfurization tower body 1; a driving shaft 52, which is fixed to the output shaft of the motor 51; a driving gear 53, which is fixedly connected to the driving shaft 52; a shaft 54, which is fixed to one end of the defoaming net cylinder 4; a driven gear 55, which is fixedly connected to the shaft 54, and the driving gear 53 and the driven gear 55 are connected to each other. The gears 53 and 54 are meshed with each other. When the motor 51 is running, it can drive the driving shaft 52 to rotate. When the driving shaft 52 rotates, it can drive the driving gear 53 to rotate. When the driving gear 53 rotates, it can drive the driven gear 55 to rotate. The shaft 54 will also rotate accordingly. When the shaft 54 rotates, it can drive the defoaming net cylinder 4 to rotate. Since the transmission ratio of the driving gear 53 and the driven gear 55 is less than 1, the defoaming net cylinder 4 can rotate slowly. In this process, the gas will evenly contact the outer surface of the rotating defoaming net cylinder 4, and the liquid droplets mixed in the gas will also evenly adhere to the outer surface of the defoaming net cylinder 4.

[0069] The device also includes a scraping structure, which is arranged inside the desulfurization tower body 1 and is placed on one side of the defoaming net cylinder 4. The scraping structure includes: a mounting frame 61, which is an L-shaped structure; a sliding plate 62, which is slidably arranged on the mounting frame 61, and the sliding plate 62 is placed on one side of the defoaming net cylinder 4, and the side of the mounting frame 61 and the side of the sliding plate 62 fit together; a scraping strip 63, which is arranged on the side of the sliding plate 62 close to the defoaming net cylinder 4, and the scraping strip 63 is made of rubber material, and the scraping strip 63 and the sliding plate 62 are connected by a detachable structure, which is convenient for the staff to replace the scraping strip 63; two slides 64, both of which are opened on the mounting frame 61; a limiting rod 65, which is a U-shaped structure, and The limiting rod 65 is fixed on the sliding plate 62, and the two ends of the limiting rod 65 are respectively slidably arranged in the two slideways 64, and the two slideways 64 and the limiting rod 65 play a limiting role in the movement of the sliding plate 62; two tension springs 66, one end of the two tension springs 66 are connected to the mounting bracket 61, and the other ends of the two tension springs 66 are connected to the sliding plate 62. Every time the scraper 63 swings down, the scraper 63 can scrape off the liquid droplets attached to the outer surface of the defoaming net cylinder 4, thereby collecting the liquid droplets on the surface of the defoaming net cylinder 4. This design can not only improve the efficiency of droplet aggregation, so that the droplets can quickly form and drip, but also can collect the droplets, preventing the droplets from falling directly downward, avoiding the droplets from re-contacting with the rising gas, and thus avoiding the phenomenon of secondary entrainment of the droplets;

[0070] The device also includes a swing structure, which is arranged inside the desulfurization tower body 1 and is driven by the driving structure, wherein the swing structure is arranged on one side of the driving structure, and the swing structure includes: a bracket 71, the bracket 71 is fixed to the inner surface of the desulfurization tower body 1, and a mounting port is provided on the bracket 71; a rotating cylinder 72, the rotating cylinder 72 passes through the mounting port, and the rotating cylinder 72 is rotatably installed in the mounting port, the rotating cylinder 72 is fixedly connected to one end of the mounting frame 61, and the shaft 54, the rotating cylinder 72 and the defoaming net cylinder 4 are coaxially arranged; a gear ring 73, the gear ring 73 is fixedly connected to the rotating cylinder 72; a rack 74, the rack 74 and the gear ring 73 are meshed with each other, the transmission ratio of the driving gear 53 and the driven gear 55 is less than 1, the transmission ratio of the ring gear 73 and the rack 74 is less than 1, and the transmission ratio of the driving gear 53 and the driven gear 55 is greater than the transmission ratio of the ring gear 73 and the rack 74; the transmission member 75, the transmission member 75 is placed inside the desulfurization tower body 1, and the transmission member 75 is connected to the rack 74, and the transmission member 75 includes: a fixed frame 751, the fixed frame 751 is fixed inside the desulfurization tower body 1; a reciprocating screw rod 752, the reciprocating screw rod 752 is rotatably mounted on the fixed frame 751; a moving block 753, the moving block 753 is threadedly sleeved on the reciprocating screw rod 752, and the moving block 753 is screwed to the reciprocating screw rod 752. The bottom surface of 53 fits with the side surface of the fixed frame 751, and the top of the moving block 753 is fixedly connected to the rack 74; the connecting rod 754, the connecting rod 754 is fixed to one end of the reciprocating screw rod 752; the bevel gear 1 755 is fixedly sleeved on the driving shaft 52; the bevel gear 2 756 is fixedly sleeved on the connecting rod 754 and meshes with the bevel gear 1 755. When the driving shaft 52 rotates, it can also drive the connecting rod 754 to rotate through the two mutually meshing bevel gears 1 755 and bevel gear 2 756. When the connecting rod 754 rotates, it can drive the reciprocating screw rod 752 to rotate. The side surfaces fit together, so the moving block 753 cannot rotate with the reciprocating screw 752. Therefore, when the reciprocating screw 752 rotates, it can drive the moving block 753 to reciprocate, and the rack 74 will also reciprocate. When the rack 74 moves in one direction, the rack 74 can drive the ring gear 73 to rotate in one direction. When the rack 74 moves in the other direction, the rack 74 can drive the ring gear 73 to rotate in the other direction. Therefore, with the reciprocating movement of the rack 74, the ring gear 73 can drive the rotating cylinder 72 to rotate forward and reverse continuously. When the rotating cylinder 72 rotates forward and reverse, the mounting frame 61 and the sliding plate 62 will swing.

[0071] The device also includes a control structure, which is arranged inside the desulfurization tower body 1 and is arranged opposite to the defoaming net drum 4. The control structure includes: a connecting frame 81, which is an L-shaped structure, and one end of the connecting frame 81 is fixed to the mounting frame 61; a mounting plate 82, which is fixed to the connecting frame 81; an electromagnet 83, which is mounted on the mounting plate 82; a magnetic plate 84, which is fixed to the sliding plate 62, and is made of magnetic material; a control switch 85, which is mounted on the mounting plate 82, and is electrically connected to the electromagnet 83; two trigger sources 8 6. Both trigger sources 86 are installed on the inner surface of the desulfurization tower body 1, and the two trigger sources 86 are arranged to face each other vertically. The control method of the two trigger sources 86 for the control switch 85 is the existing technology and is not an innovative part of the present technical solution. It is not shown in the figure and will not be described in detail here. Specifically, the two trigger sources 86 and the control switch 85 can use infrared transmitters and infrared receivers, or photoelectric transmitters and photoelectric receivers, or components with the same control effects as the above two control devices, so as to achieve the effect of powering off when the electromagnet 83 is in the upper limit position and powering on when the electromagnet 83 is in the lower limit position.

[0072] The specific working principle of the present invention is as follows:

[0073] When the spray desulfurization tower proposed by the present invention is used, Figure 8 As described above, in the initial state, the foam scraping structure is located at the lower limit position of its swing path. At this time, the foam scraping structure is close to the liquid collecting container 2, the control switch 85 is set directly opposite the trigger source 86 at the bottom, and the electromagnet 83 is in an energized state. The energized electromagnet 83 can generate magnetism and attract the magnetic plate 84, so that the sliding plate 62 is located away from the defoaming net cylinder 4, and the scraping strip 63 does not contact the defoaming net cylinder 4;

[0074] When the gas is defoamed, the motor 51 runs, and when the motor 51 runs, it can drive the driving shaft 52 to rotate. When the driving shaft 52 rotates, it can drive the driving gear 53 to rotate. When the driving gear 53 rotates, it can drive the driven gear 55 to rotate, and the shaft 54 will also rotate accordingly. When the shaft 54 rotates, it can drive the defoaming net cylinder 4 to rotate. Since the transmission ratio of the driving gear 53 and the driven gear 55 is less than 1, the defoaming net cylinder 4 can rotate slowly. In this process, the gas will evenly contact the outer surface of the rotating defoaming net cylinder 4, and the liquid droplets mixed in the gas will also evenly adhere to the outer surface of the defoaming net cylinder 4. In addition, when the driving shaft 52 rotates, it can also drive the connecting rod 754 to rotate through two mutually meshing bevel gears 1 755 and bevel gear 2 756. When the rack 74 moves in one direction, the rack 74 can drive the ring gear 73 to rotate in one direction. When the rack 74 moves in the other direction, the rack 74 can drive the ring gear 73 to rotate in the other direction. Therefore, with the reciprocating movement of the rack 74, the ring gear 73 can drive the rotating cylinder 72 to rotate in the forward and reverse directions. When the rotating cylinder 72 is reversed, the mounting frame 61 and the sliding plate 62 will swing. Figure 8 As shown, Figure 8 The dotted line in FIG represents the swing path of the sliding plate 62;

[0075] When the sliding plate 62 swings to the upper limit position, the control switch 85 is set opposite to the trigger source 86 at the upper end. At this time, the electromagnet 83 is powered off. When the electromagnet 83 is powered off, it no longer provides magnetic attraction to the magnetic plate 84. At this time, the sliding plate 62 is reset under the action of the two tension springs 66, which enables the scraper 63 to contact the outer surface of the defoaming net cylinder 4. When the scraper 63 is able to contact the outer surface of the defoaming net cylinder 4, the scraper 63 will follow the sliding plate 62 to swing downward. At this time, the scraper 63 can remove the debris attached to the defoaming net cylinder 4. The liquid droplets on the outer surface of the mesh cylinder 4 are scraped off, causing the liquid droplets to gather into droplets. Further, the droplets will flow into the interior of the liquid collection container 2. When the sliding plate 62 moves to the lower limit position again, the control switch 85 will be set opposite the trigger source 86 at the lower end. At this time, the electromagnet 83 will be energized again, so that the scraping strip 63 is separated from the defoaming mesh cylinder 4. Based on the above process, when the sliding plate 62 is swung up, the scraping strip 63 will not contact the defoaming mesh cylinder 4. When the sliding plate 62 is swung down, the scraping strip 63 can contact the defoaming mesh cylinder 4. The scraping strip 63 Each time it swings down, the scraper 63 can scrape off the liquid droplets attached to the outer surface of the defoaming net tube 4, thereby collecting the liquid droplets on the surface of the defoaming net tube 4. This design can not only improve the aggregation efficiency of the droplets, so that the droplets can quickly form and drip, but also can collect the droplets, prevent the droplets from falling directly downward, avoid the droplets from re-contacting with the rising gas, and thus avoid the phenomenon of secondary entrainment of droplets, thereby ensuring the defoaming effect and defoaming efficiency of the device for the gas. It is worth noting that the control method of the two trigger sources 86 for the control switch 85 is the existing technology and is not an innovative part of the present technical solution. It is not shown in the figure and will not be described in detail here. Specifically, the two trigger sources 86 and the control switch 85 can adopt an infrared transmitter and an infrared receiver, or a photoelectric transmitter and a photoelectric receiver, or components with the same control effect as the above two control devices, so as to achieve the effect of powering off when the electromagnet 83 is in the upper limit position and powering on when the electromagnet 83 is in the lower limit position;

[0076] It should be noted that the transmission ratio of the driving gear 53 and the driven gear 55 is less than 1, which enables the defoaming net cylinder 4 to rotate slowly, and the transmission ratio of the ring gear 73 and the rack 74 is less than 1, which enables the sliding plate 62 to swing slowly. The transmission ratio of the driving gear 53 and the driven gear 55 is greater than the transmission ratio of the ring gear 73 and the rack 74, so that the swinging speed of the sliding plate 62 is greater than the rotation speed of the defoaming net cylinder 4. This design enables the sliding plate 62 to swing back and forth at a relatively high frequency during the rotation of the defoaming net cylinder 4, thereby ensuring the cleaning effect of the scraper 63 on the liquid droplets attached to the outer surface of the defoaming net cylinder 4.

[0077] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A spray desulfurization tower, comprising a desulfurization tower body (1), characterized in that: Also includes: A liquid collecting container (2), the liquid collecting container (2) being fixed at the top position of the inner surface of the desulfurization tower body (1), and the liquid collecting container (2) being provided with an inclined surface; A guide plate (3), the guide plate (3) being fixed at the top position of the inner surface of the desulfurization tower body (1), the guide plate (3) being arranged opposite to the liquid collecting container (2), the guide plate (3) also being provided with an inclined surface, and the inclined direction of the guide plate (3) being opposite to the inclined direction of the inclined surface of the liquid collecting container (2); A defoaming net cylinder (4), the defoaming net cylinder (4) is rotatably mounted on the top of the inner surface of the desulfurization tower body (1), both ends of the defoaming net cylinder (4) are closed structures, a plurality of meshes are evenly distributed on the outer peripheral surface, and the defoaming net cylinder (4) is arranged facing the area between the liquid collecting container (2) and the guide plate (3); A driving structure, the driving structure being arranged inside the desulfurization tower body (1), the driving structure being arranged at one end of the defoaming net cylinder (4), and the defoaming net cylinder (4) being driven by the driving structure; A foam scraping structure, the foam scraping structure being arranged inside the desulfurization tower body (1), and the foam scraping structure being placed on one side of the foam removal net cylinder (4); A swing structure, wherein the swing structure is arranged inside the desulfurization tower body (1), and the swing structure is driven by the driving structure, wherein the swing structure is arranged on one side of the driving structure; A control structure, the control structure being arranged inside the desulfurization tower body (1), and the control structure being arranged facing the defoaming net cylinder (4); The driving structure includes: A motor (51), the motor (51) being mounted on the inner surface of the desulfurization tower body (1); A drive shaft (52), wherein the drive shaft (52) is fixed to an output shaft of the motor (51); A driving gear (53), wherein the driving gear (53) is fixedly connected to the driving shaft (52); A shaft (54), wherein the shaft (54) is fixed to one end of the defoaming net cylinder (4); A driven gear (55), wherein the driven gear (55) is fixedly connected to the shaft (54), and the driving gear (53) and the driven gear (55) are meshed with each other; The scraping structure comprises: A mounting frame (61), wherein the mounting frame (61) is an L-shaped structure; A sliding plate (62), the sliding plate (62) being slidably mounted on the mounting frame (61), and the sliding plate (62) being placed on one side of the defoaming net cylinder (4); a scraper bar (63), the scraper bar (63) being arranged on a side of the sliding plate (62) close to the defoaming net cylinder (4); Two slideways (64), both of which are provided on the mounting frame (61); A limiting rod (65), wherein the limiting rod (65) is in a U-shaped structure and is fixed on the sliding plate (62), and both ends of the limiting rod (65) are respectively slidably arranged in two slideways (64); Two tension springs (66), one end of each of the tension springs (66) is connected to the mounting frame (61), and the other end of each of the tension springs (66) is connected to the sliding plate (62); The swing structure comprises: A bracket (71), the bracket (71) is fixed to the inner surface of the desulfurization tower body (1), and a mounting opening is provided on the bracket (71); A rotating cylinder (72), the rotating cylinder (72) passing through the installation opening, the rotating cylinder (72) being rotatably installed in the installation opening, and the rotating cylinder (72) being fixedly connected to one end of the installation frame (61); a gear ring (73), wherein the gear ring (73) is fixedly connected to the rotating cylinder (72); A rack (74), wherein the rack (74) and the ring gear (73) are meshed with each other; A transmission member (75), the transmission member (75) is placed inside the desulfurization tower body (1), and the transmission member (75) is connected to the rack (74); The transmission member (75) comprises: A fixing frame (751), wherein the fixing frame (751) is fixed inside the desulfurization tower body (1); A reciprocating screw rod (752), wherein the reciprocating screw rod (752) is rotatably mounted on the fixed frame (751); A moving block (753), wherein the moving block (753) is threadedly sleeved on the reciprocating screw (752), and the bottom surface of the moving block (753) and the side surface of the fixed frame (751) are in contact with each other, and the top end of the moving block (753) is fixedly connected to the rack (74); A connecting rod (754), wherein the connecting rod (754) is fixed to one end of the reciprocating screw rod (752); A bevel gear (755) is fixedly mounted on the drive shaft (52); Bevel gear 2 (756) is fixedly sleeved on the connecting rod (754) and meshes with bevel gear 1 (755); The control structure includes: A connecting frame (81), wherein the connecting frame (81) is an L-shaped structure, and one end of the connecting frame (81) is fixed to the mounting frame (61); A mounting plate (82), wherein the mounting plate (82) is fixed to the connecting frame (81); an electromagnet (83), the electromagnet (83) being mounted on the mounting plate (82); A magnetic plate (84), the magnetic plate (84) being fixed on the sliding plate (62), and the magnetic plate (84) being made of a magnetic material; A control switch (85), wherein the control switch (85) is mounted on the mounting plate (82), and the control switch (85) is electrically connected to the electromagnet (83); Two trigger sources (86), both of which are installed on the inner surface of the desulfurization tower body (1), and the two trigger sources (86) are arranged vertically opposite to each other.

2. A spray desulfurization tower according to claim 1, characterized in that: The scraper strip (63) is made of rubber material, and the scraper strip (63) is connected to the sliding plate (62) via a detachable structure.

3. A spray desulfurization tower according to claim 1, characterized in that: The side surface of the mounting frame (61) and the side surface of the sliding plate (62) are in contact with each other.

4. A spray desulfurization tower according to claim 1, characterized in that: The shaft (54), the rotating cylinder (72) and the defoaming net cylinder (4) are coaxially arranged.

5. A spray desulfurization tower according to claim 1, characterized in that: The transmission ratio between the driving gear (53) and the driven gear (55) is less than 1, the transmission ratio between the ring gear (73) and the rack (74) is less than 1, and the transmission ratio between the driving gear (53) and the driven gear (55) is greater than the transmission ratio between the ring gear (73) and the rack (74).

Images