Desulfurization demisting device for ship tail gas wet open type desulfurization system

Abstract

The invention discloses a desulfurization and demisting device for a ship tail gas wet open desulfurization system, and relates to the technical field of ship tail gas treatment, the desulfurization and demisting device comprises a reaction bin, the top end of the reaction bin is communicated with a tail gas discharge port, and the joint of the reaction bin and the tail gas discharge port is conical; a tail gas input port is communicated with a position, close to the bottom end, of the side wall of the reaction bin. Tail gas directly makes contact with seawater at the bottom end of the inner wall of the reaction bin when entering the reaction bin, so that the tail gas is preliminarily desulfurized, a rotating pipe drives a spraying pipe to rotate, the tail gas in the reaction bin is driven by the spraying pipe to rotate, and the spraying pipe makes contact with the seawater in the rotating process; by means of rotation of the centrifugal fan blades, water mist in the tail gas impacts the interior of the reaction bin under the action of centrifugal force, so that the water mist flows down along the interior of the reaction bin, and sulfur-containing mist is prevented from being exhausted into air.

Description

Technical Field

[0001] The invention relates to the technical field of ship exhaust gas treatment, in particular to a desulfurization and demisting device for a ship exhaust gas wet open desulfurization system. Background Art

[0002] The marine transportation industry is an important area in the development of modern social economy. With the increase of world trade volume, the tonnage and number of ships are rising sharply. In the transportation process of modern world trade, diesel engines are the key power source. In order to reduce transportation costs, ship engines usually use low-quality fuel oil with high sulfur content as the main fuel. After burning high-sulfur oil, exhaust gas containing a large amount of pollutants such as SO2 and particulate matter will be produced. There are clear restrictions on the emission of pollutants such as SO2 from ships. In order to make the sulfur emission of ship exhaust meet the relevant emission standards, the main technical measure is to install a wet desulfurization device. The working principle of the open desulfurization tower is mainly based on the use of the natural weak alkalinity of surface seawater to neutralize the sulfur oxides in the engine combustion exhaust gas, thereby achieving the purpose of desulfurization.

[0003] An existing patent (publication number: CN111036006B) discloses a sound wave enhanced ship exhaust gas desulfurization and particulate matter removal device, which relates to the technical field of ship diesel engine exhaust treatment, including a wet desulfurization tower and a venturi tube connected to the wet desulfurization tower, a venturi spray layer is arranged in the venturi tube, a cooling spray layer, a main spray layer and a desulfurization tower demister are arranged in the wet desulfurization tower from bottom to top, and a flue gas outlet is arranged on the top of the wet desulfurization tower, wherein a plurality of sound wave enhancement devices are also included, a first interface is provided on the side wall of the inlet end of the venturi tube, a second interface is provided on the side wall of the wet desulfurization tower, the second interface is located between the main spray layer and the desulfurization tower demister, and sound wave enhancement devices are installed on the first interface and the second interface, which realize the agglomeration effect of fine particles through the sound wave enhancement device, and greatly remove SO2 and particulate matter in the exhaust gas, and the control is simple and the economic cost is low.

[0004] However, the above technical solution still has certain defects. During use, the above technical solution increases the surface area of ​​seawater by spraying, so that the seawater contacts the exhaust gas, thereby reacting with the sulfide in the exhaust gas to achieve desulfurization. However, during use, a certain amount of exhaust gas cannot react with seawater in time, resulting in a relatively general desulfurization effect of the exhaust gas. For this reason, a desulfurization and demisting device for a wet open desulfurization system of ship exhaust gas is proposed. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a desulfurization and demisting device for a ship exhaust wet open desulfurization system to solve the technical problems raised in the above background.

[0006] To achieve the above object, the present invention provides the following technical solutions: a desulfurization and demisting device for a ship exhaust wet open desulfurization system, comprising a reaction chamber, the top of the reaction chamber is connected to an exhaust gas discharge port, the connection between the reaction chamber and the exhaust gas discharge port is configured to be conical, the side wall of the reaction chamber is connected to an exhaust gas input port near the bottom, the bottom of the reaction chamber is fixedly connected to a neutralization chamber, and the inner wall of the reaction chamber is provided with a desulfurization mechanism extending from the bottom of the reaction chamber; The desulfurization mechanism includes a rotating tube, which is rotatably connected to the bottom end of the reaction bin, and the top end of the rotating rod extends into the interior of the reaction bin, and one end of the rotating rod located inside the reaction bin is fixedly connected to a centrifugal blade, and the outer wall of the rotating rod is fixedly sleeved with two groups of spray pipes located inside the reaction bin, and the bottom ends of the two groups of spray pipes are respectively connected to multiple groups of nozzles, and the multiple groups of nozzles are distributed at the bottom ends of the spray pipes, and the closer to the middle position of the spray pipe, the denser the arrangement of the nozzles is, the outer wall of the rotating tube is fixedly connected to multiple groups of side frames located inside the reaction bin, and the side walls of the side frames are fixedly connected to the ends of the two groups of spray pipes, and the side walls of the side frames are fixedly connected to scrapers that fit the inner wall of the reaction bin, the top of the neutralization bin is fixedly connected to a motor, and the output end of the motor is fixedly connected to a first bevel gear, and the outer wall of the rotating tube is fixedly sleeved with a second bevel gear located outside the reaction bin, and the first bevel gear is meshed with the second bevel gear.

[0007] As a preferred technical solution of the desulfurization and demisting device for a ship exhaust wet open desulfurization system of the present invention, the bottom end of the rotating pipe is connected to a pipeline rotating connector, and the input end of the pipeline rotating connector is connected to a desulfurization seawater inlet pipe.

[0008] As a preferred technical solution of the desulfurization and demisting device for a wet open desulfurization system of ship exhaust gas of the present invention, the top of the neutralization bin is connected to a neutralization seawater inlet pipe, and the bottom of the neutralization bin is connected to a neutralization seawater outlet pipe.

[0009] As a preferred technical solution of the desulfurization and demisting device for a wet open desulfurization system of ship exhaust gas of the present invention, the inner wall of the reaction chamber is fixedly connected with an auxiliary reaction mechanism, and the auxiliary reaction mechanism includes a support frame, which is fixedly connected to the inner wall of the reaction chamber, and the support frame is sleeved on the outer wall of the rotating tube.

[0010] As a preferred technical solution of the desulfurization and demisting device for a wet open desulfurization system of ship exhaust gas of the present invention, two groups of guide rods are fixedly connected to each side of the inner wall of the support frame, and the inner wall of the support frame is provided with multiple groups of sliding plates, and the multiple groups of sliding plates are respectively slidably connected to the outer walls of the two groups of guide rods, and a ball head is fixedly connected to one side of the sliding plate, and the outer wall of the rotating rod is provided with a sliding groove matching the ball head, and the ball head is slidably connected to the inner wall of the sliding groove.

[0011] As a preferred technical solution of the desulfurization and demisting device for a wet open desulfurization system of ship exhaust gas of the present invention, the sliding plate is slidably connected to a sliding rod inside, the outer wall of the sliding rod is fixedly connected to a support frame, the inner wall of the support frame is rotatably connected to a rotating shaft, the outer wall of the rotating shaft is rotatably sleeved with a retaining frame, the retaining frame is hinged to the side wall of the support frame, the end of the rotating shaft is fixedly connected to a blade, the outer wall of the rotating shaft is fixedly sleeved with a bevel gear, the side wall of the support frame is fixedly connected to a rack, and the bevel gear is meshed with the rack.

[0012] As a preferred technical solution of the desulfurization and demisting device for a wet open desulfurization system of ship exhaust gas of the present invention, a high-pressure neutralization mechanism is fixedly connected to the bottom end of the reaction chamber, and the high-pressure neutralization mechanism includes an eccentric wheel, and the eccentric wheel is fixedly sleeved on the outer wall of a rotating tube, and the outer wall of the eccentric wheel is rotatably connected to a rotating ring, and the side wall of the rotating ring is hinged with multiple groups of connecting rods, and the ends of the multiple groups of connecting rods are respectively hinged with a group of injection assemblies.

[0013] As a preferred technical solution of a desulfurization and demisting device for a wet open desulfurization system of ship exhaust gas of the present invention, the injection assembly includes a sleeve, which is fixedly connected to the bottom end of the reaction chamber, one end of the sleeve is threadedly connected to a front plug, the inner wall of the front plug is slidably connected to a push rod extending to the inside of the sleeve, one end of the push rod located outside the sleeve is hinged to the end of the connecting rod, and one end of the push rod located inside the sleeve is fixedly connected to a piston, and the piston is slidably connected to the inside of the sleeve.

[0014] As a preferred technical solution of the desulfurization and demisting device for a wet open desulfurization system of ship exhaust gas of the present invention, the other end of the sleeve is threadedly connected with a rear plug, the side wall of the rear plug is connected to one end of a suction pipe, the end of the suction pipe is connected to the side wall of the reaction chamber near the bottom, and the side wall of the rear plug is connected to a high-pressure nozzle located below the suction pipe.

[0015] As a preferred technical solution of the desulfurization and demisting device for a wet open desulfurization system of ship exhaust gas of the present invention, the end of the high-pressure nozzle is connected to the side wall of the neutralization chamber, the rear plug is slidably provided with a first sealing plate at the connection with the suction pipe, and the rear plug is slidably provided with a second sealing plate at the connection with the high-pressure nozzle, and the side walls of the first sealing plate and the second sealing plate are respectively provided with a group of return springs, and the ends of the two groups of return springs are fixedly connected to the inner wall of the rear plug.

[0016] In summary, the present invention mainly has the following beneficial effects: 1. The present invention gathers the sprayed seawater at the bottom of the inner wall of the reaction chamber, and the tail gas directly contacts the seawater at the bottom of the inner wall of the reaction chamber when entering the interior of the reaction chamber, and then floats upward in the reaction chamber under the action of the tail gas's own buoyancy, thereby performing preliminary desulfurization on the tail gas. The rotating pipe drives the spray pipe to rotate, so that the tail gas in the reaction chamber is driven to rotate by the spray pipe, and the spray pipe touches the seawater during the rotation process, so that the seawater and the tail gas are mixed more evenly, and the centrifugal fan blades are rotated in the process of the tail gas continuing to move upward, so that the water mist in the tail gas hits the interior of the reaction chamber under the action of centrifugal force, so that the water mist flows down along the interior of the reaction chamber, and the sulfur-containing mist is prevented from being discharged into the air; 2. The present invention pushes the ball head during the rotation of the rotating tube, so that the blades swing back and forth up and down. During the up and down swinging of the blades, the meshing between the bevel gear and the rack is used to make the blades reciprocate within a certain angle, so that the seawater gathered at the bottom of the inner wall of the reaction chamber is pushed by the blades, so that the seawater and the tail gas just entering the reaction chamber can be more fully mixed, so that the effect of initial desulfurization is better; 3. The present invention drives the eccentric wheel during the rotation of the rotating tube, thereby pushing multiple groups of injection components at one time, so that the process injection component draws seawater at the bottom end of the inner wall of the reaction chamber into the casing, and then sprays the seawater into the neutralization chamber, so that the seawater that has participated in the desulfurization reaction is mixed with the seawater that has not participated in the reaction, so that the seawater that has participated in the reaction is neutralized to the standard value, and the high-pressure injection method is used to make the seawater that has participated in the reaction collide and mix with the seawater that has not participated in the reaction after entering the neutralization chamber, so that the two seawaters can be neutralized more quickly and evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic diagram of the cross-section structure of the reaction chamber of the present invention when viewed from above; Figure 3 It is a schematic diagram of the cross-section front view of the reaction chamber of the present invention; Figure 4 It is a schematic diagram of the removal state of the reaction chamber and the neutralization chamber of the present invention; Figure 5 It is a schematic diagram of the structure of the high-pressure neutralization mechanism of the present invention; Figure 6 It is a schematic diagram of the structure of the spray pipe of the present invention; Figure 7 It is a schematic diagram of the auxiliary reaction mechanism structure of the present invention; Figure 8 It is a schematic diagram of the position relationship of the rotating shaft of the present invention; Fig. 9It is a schematic diagram of the casing explosion structure of the present invention; Fig.10 It is a schematic diagram of the cross-sectional structure of the rear plug of the present invention.

[0018] In the figure: 1. reaction chamber; 2. tail gas discharge port; 3. tail gas input port; 4. neutralization chamber; 5. neutralization seawater outlet pipe; 6. neutralization seawater inlet pipe; 7. desulfurization mechanism; 8. auxiliary reaction mechanism; 9. high-pressure neutralization mechanism; 701, rotating pipe; 702, spray pipe; 7021, nozzle; 703, side frame; 704, scraper; 705, centrifugal fan blade; 706, motor; 707, first bevel gear; 708, second bevel gear; 709, pipeline rotating connector; 710, desulfurized seawater inlet pipe; 801, support frame; 802, guide rod; 803, sliding plate; 804, ball head; 805, slide groove; 806, sliding rod; 807, support frame; 808, rotating shaft; 809, retaining frame; 810, blade; 811, bevel gear; 812, rack; 901, eccentric wheel; 902, rotating ring; 903, connecting rod; 904, injection assembly; 9041, sleeve; 9042, front plug; 9043, push rod; 9044, piston; 9045, rear plug; 9046, suction pipe; 9047, high-pressure nozzle; 9048, first sealing plate; 9049, second sealing plate; 9040, return spring. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] The following describes an embodiment of the present invention based on its overall structure.

[0021] A desulfurization and demisting device for a ship exhaust wet open desulfurization system, such as Figures 1 to 10 As shown, it includes a reaction bin 1, the top of the reaction bin 1 is connected to a tail gas discharge port 2, the connection between the reaction bin 1 and the tail gas discharge port 2 is set to be conical, the side wall of the reaction bin 1 is connected to a tail gas input port 3 near the bottom, the bottom of the reaction bin 1 is fixedly connected to a neutralization bin 4, and the inner wall of the reaction bin 1 is provided with a desulfurization mechanism 7 extending from the bottom of the reaction bin 1; The desulfurization mechanism 7 includes a rotating tube 701, which is rotatably connected to the bottom end of the reaction chamber 1, and the top end of the rotating rod extends to the inside of the reaction chamber 1. One end of the rotating rod located inside the reaction chamber 1 is fixedly connected with a centrifugal fan blade 705. The outer wall of the rotating rod is fixedly sleeved with two groups of spray pipes 702 located inside the reaction chamber 1. The bottom ends of the two groups of spray pipes 702 are respectively connected to multiple groups of nozzles 7021. The multiple groups of nozzles 7021 are distributed at the bottom ends of the spray pipes 702, and the closer to the middle position of the spray pipes 702, the denser the arrangement of the nozzles 7021. The outer wall of the rotating tube 701 is fixedly connected to multiple groups of side frames 703 located inside the reaction chamber 1. The side walls of the side frames 703 are fixedly connected. At the end of the two groups of spray pipes 702, the side walls of the side frames 703 are fixedly connected with scrapers 704 that fit the inner wall of the reaction chamber 1, the top of the neutralization chamber 4 is fixedly connected with a motor 706, the output end of the motor 706 is fixedly connected with a first bevel gear 707, the outer wall of the rotating tube 701 is fixedly sleeved with a second bevel gear 708 located outside the reaction chamber 1, the first bevel gear 707 is meshed with the second bevel gear 708, the bottom end of the rotating tube 701 is connected with a pipeline rotating connector 709, the input end of the pipeline rotating connector 709 is connected with a desulfurized seawater inlet pipe 710, the top of the neutralization chamber 4 is connected with a neutralization seawater inlet pipe 6, and the bottom end of the neutralization chamber 4 is connected with a neutralization seawater outlet pipe 5.

[0022] Surface seawater enters the interior of the pipeline rotating connector 709 through the desulfurized seawater inlet pipe 710, and then enters the interior of the rotating tube 701 through the pipeline rotating connector 709, and then the seawater enters the interior of the spray pipe 702 through the rotating tube 701, so that the seawater is sprayed out from the nozzle 7021, and the exhaust gas enters the interior of the reaction chamber 1 through the exhaust gas inlet port 3. The exhaust gas contacts the seawater gathered at the bottom of the inner wall of the reaction chamber 1, and then floats upward under the action of the buoyancy of the exhaust gas itself, so that the exhaust gas is initially desulfurized. As the exhaust gas contacts the seawater sprayed from the nozzle 7021, secondary desulfurization is achieved. In the above process, the motor 706 drives the second bevel gear 708 to rotate through the first bevel gear 707, so that the second bevel gear 708 drives the rotating tube 701 to rotate. During the rotation of the rotating tube 701, the two groups of spray pipes 702 are driven to rotate, so that the nozzle 7021 rotates in the process of spraying seawater, and the spray pipe 702 During the rotation, the exhaust gas inside the reaction chamber 1 is stirred so that the exhaust gas can react more fully with the sprayed seawater. The centrifugal force during the rotation causes the seawater to be sprayed more toward the inner wall of the reaction chamber 1 after being sprayed from the nozzle 7021. Therefore, the closer to the middle position of the spray pipe 702, the denser the number of nozzles 7021, so that the sprayed seawater can be evenly distributed inside the reaction chamber 1. After the exhaust gas contacts the sprayed seawater, it will carry a large number of small water droplets and float upward. These water droplets contain sulfide. When the exhaust gas passes through the centrifugal blades 705, the exhaust gas rotates rapidly under the drive of the centrifugal blades 705, thereby using the centrifugal force to make the exhaust gas collide with the inner wall of the reaction chamber 1, so that the small water droplets in the exhaust gas gather inside the reaction chamber 1, and then flow along the inner wall of the reaction chamber 1 to the bottom of the inner wall of the reaction chamber 1, thereby preventing the sulfur-containing water vapor from being discharged into the air. Subsequently, the exhaust gas with the small water droplets removed is discharged through the exhaust gas discharge port 2.

[0023] Please refer to Figure 7 and Figure 8The inner wall of the reaction chamber 1 is fixedly connected with an auxiliary reaction mechanism 8, and the auxiliary reaction mechanism 8 includes a support frame 801, which is fixedly connected to the inner wall of the reaction chamber 1, and the support frame 801 is sleeved on the outer wall of the rotating tube 701. Two sets of guide rods 802 are fixedly connected to each side of the inner wall of the support frame 801, and the inner wall of the support frame 801 is provided with multiple sets of sliding plates 803, and the multiple sets of sliding plates 803 are respectively slidably connected to the outer walls of the two sets of guide rods 802. A ball head 804 is fixedly connected to one side of the sliding plate 803, and a sliding groove 805 that matches the ball head 804 is opened on the outer wall of the rotating rod The ball head 804 is slidably connected to the inner wall of the slide groove 805, the sliding plate 803 is slidably connected to the sliding rod 806, the outer wall of the sliding rod 806 is fixedly connected to the support frame 807, the inner wall of the support frame 807 is rotatably connected to the rotating shaft 808, the outer wall of the rotating shaft 808 is rotatably sleeved with a retaining frame 809, the retaining frame 809 is hinged to the side wall of the support frame 801, the end of the rotating shaft 808 is fixedly connected to the paddle 810, the outer wall of the rotating shaft 808 is fixedly sleeved with a bevel gear 811, the side wall of the support frame 801 is fixedly connected to a rack 812, and the bevel gear 811 is meshed with the rack 812.

[0024] During the rotation of the rotating tube 701, the rotating tube 701 drives the slide groove 805 to rotate, so that the slide groove 805 pushes the multiple sets of ball heads 804 to move up and down reciprocatingly. During the movement of the ball heads 804, the sliding plate 803 is driven to slide back and forth on the outer wall of the guide rod 802, so that the sliding plate 803 reciprocates to push the sliding rod 806, so that the sliding rod 806 drives the support frame 807 to swing, and the support frame 807 drives the rotating shaft 808 to swing up and down, so that the rotating shaft 808 drives the retaining frame 809 to reciprocate on the side wall of the support frame 807, and the rotating shaft 808 drives the paddle 810 to swing up and down. During the up and down swinging of the paddle 810, the bottom end of the inner wall of the reaction chamber 1 is continuously pressed. The seawater is stirred, and in the process of the paddle 810 swinging up and down, the bevel gear 811 is driven to swing back and forth continuously, so that the bevel gear 811 rotates under the meshing with the rack 812, and the bevel gear 811 rotates to drive the rotating shaft 808 to rotate, and the rotating shaft 808 drives the paddle 810 to rotate, so that the paddle 810 swings with the retaining frame 809 as the center of the circle and reciprocates with the center of the rotating shaft 808 as the center of the circle, thereby realizing that the paddle 810 pushes the seawater to rotate at the bottom end of the inner wall of the reaction chamber 1 in the process of stirring the seawater up and down, so that the exhaust gas can be mixed with the seawater more fully during the initial reaction and desulfurization process of the exhaust gas and the seawater, thereby improving the exhaust gas desulfurization effect and desulfurization efficiency.

[0025] Please refer to Figure 5 , Fig. 9 and Fig.10The bottom end of the reaction chamber 1 is fixedly connected with a high-pressure neutralization mechanism 9, and the high-pressure neutralization mechanism 9 includes an eccentric wheel 901, and the eccentric wheel 901 is fixedly sleeved on the outer wall of the rotating tube 701, and the outer wall of the eccentric wheel 901 is rotatably connected with a rotating ring 902, and the side wall of the rotating ring 902 is hinged with multiple groups of connecting rods 903, and the ends of the multiple groups of connecting rods 903 are respectively hinged with a group of injection assemblies 904, and the injection assembly 904 includes a sleeve 9041, and the sleeve 9041 is fixedly connected to the bottom end of the reaction chamber 1, and one end of the sleeve 9041 is threadedly connected with a front plug 9042, and the inner wall of the front plug 9042 is slidably connected with a push rod 9043 extending to the inside of the sleeve 9041, and one end of the push rod 9043 located outside the sleeve 9041 is hinged at the end of the connecting rod, and one end of the push rod 9043 located inside the sleeve 9041 is fixedly connected with a piston 9044, and the piston 9 044 is slidably connected to the inside of the sleeve 9041, and the other end of the sleeve 9041 is threadedly connected to the rear plug 9045, the side wall of the rear plug 9045 is connected to one end of the suction pipe 9046, the end of the suction pipe 9046 is connected to the bottom end of the side wall of the reaction chamber 1, the side wall of the rear plug 9045 is connected to the high-pressure nozzle 9047 located below the suction pipe 9046, and the end of the high-pressure nozzle 9047 is connected to the side wall of the neutralization chamber, the rear plug 9045 is slidably provided with a first sealing plate 9048 at the connection with the suction pipe 9046, and the rear plug 9045 is slidably provided with a second sealing plate 9049 at the connection with the high-pressure nozzle 9047, and the side walls of the first sealing plate 9048 and the second sealing plate 9049 are respectively provided with a group of return springs 9040, and the ends of the two groups of return springs 9040 are fixedly connected to the inner wall of the rear plug 9045.

[0026] The eccentric wheel 901 is driven to rotate during the rotation of the rotating tube 701. During the rotation of the eccentric wheel 901, the inner wall of the rotating ring 902 is rotated, and the rotating ring 902 is pushed to revolve around the rotating tube 701. Since the rotating ring 902 is hinged with multiple groups of connecting rods, and the rotating ring 902 and the eccentric wheel 901 are rotatably connected, the rotating ring 902 will not rotate on its own. During the rotation of the rotating ring 902 around the rotating tube 701, when the rotating ring 902 approaches a certain group of sleeves 9041, the rotating ring 902 pushes the push rod 9043 connected thereto through the connecting rod, so that this group of push rods 9043 slides inside the sleeve 9041. When the rotating ring 902 hits a certain group of sleeves 9041, the push rod 9043 inside it is pulled to slide outward, thereby achieving the purpose of continuously pushing and pulling multiple groups of push rods 9043. During the sliding of the push rod 9043 to the outside of the sleeve 9041, the push rod 9043 The moving rod 9043 drives the piston 9044 to slide inside the sleeve 9041 toward the front plug 9042, so that negative pressure is generated between the piston 9044 and the rear plug 9045, so that the first sealing plate 9048 compresses the reset spring 9040, and the second piston 9044 is tightly fitted with the inner wall of the rear plug 9045 under the action of the negative pressure. At this time, the seawater at the bottom end of the inner wall of the reaction chamber 1 is sucked into the sleeve 9041 through the suction pipe 9046. When the push rod 9043 slides into the sleeve 9041, the piston 9044 slides toward the rear plug 9045 under the push of the push rod 9043, so that the seawater inside the sleeve 9041 is pushed, so that the first sealing plate 9048 is reset and the second sealing plate 9049 slides to compress another set of reset springs 9040. At this time, the seawater is sprayed into the neutralization chamber through the high-pressure nozzle 9047, so that the desulfurized seawater is quickly mixed with the seawater inside the neutralization chamber.

[0027] When in use, the sprayed seawater is gathered at the bottom end of the inner wall of the reaction chamber 1, and the exhaust gas directly contacts the seawater at the bottom end of the inner wall of the reaction chamber 1 when entering the interior of the reaction chamber 1, and then floats upward in the interior of the reaction chamber 1 under the action of the buoyancy of the exhaust gas itself, thereby performing preliminary desulfurization on the exhaust gas, and the rotating tube 701 drives the spray tube 702 to rotate, so that the exhaust gas in the reaction chamber 1 is driven to rotate by the spray tube 702, and the spray tube 702 touches the seawater during the rotation, so that the seawater and the exhaust gas are mixed more evenly, and when the exhaust gas continues to move upward, the centrifugal fan blades 705 are rotated, so that the water mist in the exhaust gas hits the interior of the reaction chamber 1 under the action of centrifugal force, so that the water mist flows down along the interior of the reaction chamber 1, avoiding the sulfur-containing mist from being discharged into the air, and the parts not involved in the device are the same as the prior art or can be implemented by the prior art.

[0028] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A desulfurization and demisting device for a ship exhaust wet open desulfurization system, comprising a reaction chamber (1), characterized in that: The top of the reaction chamber (1) is connected to a tail gas discharge port (2); the connection between the reaction chamber (1) and the tail gas discharge port (2) is arranged in a cone shape; the side wall of the reaction chamber (1) is connected to a tail gas input port (3) near the bottom; the bottom of the reaction chamber (1) is fixedly connected to a neutralization chamber (4); and the inner wall of the reaction chamber (1) is provided with a desulfurization mechanism (7) extending from the bottom of the reaction chamber (1); The desulfurization mechanism (7) comprises a rotating tube (701), the rotating tube (701) being rotatably connected to the bottom end of the reaction chamber (1), and the top end of the rotating rod extending into the interior of the reaction chamber (1), one end of the rotating rod located inside the reaction chamber (1) being fixedly connected to a centrifugal fan blade (705), and the outer wall of the rotating rod being fixedly sleeved with two groups of spray pipes (702) located inside the reaction chamber (1), the bottom ends of the two groups of spray pipes (702) being respectively connected to a plurality of groups of spray heads (7021), the plurality of groups of spray heads (7021) being distributed at the bottom ends of the spray pipes (702), and the closer to the middle position of the spray pipes (702), the denser the arrangement of the spray heads (7021), The outer wall of the rotating tube (701) is fixedly connected to a plurality of groups of side frames (703) located inside the reaction chamber (1); the side walls of the side frames (703) are fixedly connected to the ends of the two groups of spray pipes (702); the side walls of the side frames (703) are fixedly connected to scrapers (704) that are in contact with the inner wall of the reaction chamber (1); the top of the neutralization chamber (4) is fixedly connected to a motor (706); the output end of the motor (706) is fixedly connected to a first bevel gear (707); the outer wall of the rotating tube (701) is fixedly sleeved with a second bevel gear (708) located outside the reaction chamber (1); the first bevel gear (707) is meshed with the second bevel gear (708).

2. The desulfurization and demisting device for a ship exhaust wet open desulfurization system according to claim 1, characterized in that: The bottom end of the rotating tube (701) is connected to a pipeline rotating connector (709), and the input end of the pipeline rotating connector (709) is connected to a desulfurized seawater inlet pipe (710).

3. The desulfurization and demisting device for a ship exhaust wet open desulfurization system according to claim 1, characterized in that: The top end of the neutralization bin (4) is connected to a neutralization seawater inlet pipe (6), and the bottom end of the neutralization bin (4) is connected to a neutralization seawater outlet pipe (5).

4. The desulfurization and demisting device for a ship exhaust wet open desulfurization system according to claim 1, characterized in that: An auxiliary reaction mechanism (8) is fixedly connected to the inner wall of the reaction chamber (1), and the auxiliary reaction mechanism (8) comprises a support frame (801). The support frame (801) is fixedly connected to the inner wall of the reaction chamber (1), and the support frame (801) is sleeved on the outer wall of the rotating tube (701).

5. The desulfurization and demisting device for a ship exhaust wet open desulfurization system according to claim 4, characterized in that: Two groups of guide rods (802) are fixedly connected to each side of the inner wall of the support frame (801), and a plurality of sliding plates (803) are provided on the inner wall of the support frame (801). The plurality of sliding plates (803) are slidably connected to the outer walls of the two groups of guide rods (802), and a ball head (804) is fixedly connected to one side of the sliding plate (803). A sliding groove (805) matching the ball head (804) is provided on the outer wall of the rotating rod, and the ball head (804) is slidably connected to the inner wall of the sliding groove (805).

6. The desulfurization and demisting device for a ship exhaust wet open desulfurization system according to claim 5, characterized in that: The interior of the sliding plate (803) is slidably connected to a sliding rod (806); the outer wall of the sliding rod (806) is fixedly connected to a support frame (807); the inner wall of the support frame (807) is rotatably connected to a rotating shaft (808); the outer wall of the rotating shaft (808) is rotatably sleeved with a retaining frame (809); the retaining frame (809) is hinged to the side wall of the support frame (801); the end of the rotating shaft (808) is fixedly connected to a blade (810); the outer wall of the rotating shaft (808) is fixedly sleeved with a bevel gear (811); the side wall of the support frame (801) is fixedly connected to a rack (812); the bevel gear (811) is meshed with the rack (812).

7. The desulfurization and demisting device for a ship exhaust wet open desulfurization system according to claim 1, characterized in that: A high-pressure neutralization mechanism (9) is fixedly connected to the bottom end of the reaction chamber (1), and the high-pressure neutralization mechanism (9) comprises an eccentric wheel (901), the eccentric wheel (901) is fixedly sleeved on the outer wall of the rotating tube (701), the outer wall of the eccentric wheel (901) is rotatably connected to a rotating ring (902), and the side wall of the rotating ring (902) is hinged with multiple groups of connecting rods (903), and the ends of the multiple groups of connecting rods (903) are respectively hinged with a group of injection assemblies (904).

8. The desulfurization and demisting device for a ship exhaust wet open desulfurization system according to claim 7, characterized in that: The injection assembly (904) comprises a sleeve (9041), wherein the sleeve (9041) is fixedly connected to the bottom end of the reaction chamber (1), one end of the sleeve (9041) is threadedly connected to a front plug (9042), an inner wall of the front plug (9042) is slidably connected to a push rod (9043) extending into the interior of the sleeve (9041), one end of the push rod (9043) located outside the sleeve (9041) is hinged to the end of a connecting rod, and one end of the push rod (9043) located inside the sleeve (9041) is fixedly connected to a piston (9044), and the piston (9044) is slidably connected to the interior of the sleeve (9041).

9. The desulfurization and demisting device for a ship exhaust wet open desulfurization system according to claim 8, characterized in that: The other end of the sleeve (9041) is threadedly connected to a rear plug (9045), the side wall of the rear plug (9045) is connected to one end of a suction pipe (9046), the end of the suction pipe (9046) is connected to the bottom of the side wall of the reaction chamber (1), and the side wall of the rear plug (9045) is connected to a high-pressure nozzle (9047) located below the suction pipe (9046).

10. The desulfurization and demisting device for a ship exhaust wet open desulfurization system according to claim 9, characterized in that: The end of the high-pressure nozzle (9047) is connected to the side wall of the neutralization chamber, and the rear plug (9045) is slidably provided with a first sealing plate (9048) at the connection with the suction pipe (9046), and the rear plug (9045) is slidably provided with a second sealing plate (9049) at the connection with the high-pressure nozzle (9047), and the side walls of the first sealing plate (9048) and the second sealing plate (9049) are respectively provided with a group of return springs (9040), and the ends of the two groups of return springs (9040) are fixedly connected to the inner wall of the rear plug (9045).

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