Wet desulphurization demisting device

Abstract

A demisting cleaning mechanism comprises an exhaust pipe, the exhaust pipe is fixedly communicated with one side of a desulfurization box, an exhaust fan is fixedly mounted in the exhaust pipe, the end part of the exhaust pipe is communicated with a water-cooling demisting box, a demister body is fixedly mounted in the water-cooling demisting box, and the demister body is fixedly mounted in the demister body. The demister comprises a demister body, a rotary cold water pipe is rotationally connected into the demister body, an annular water pipe sleeves the rotary cold water pipe, a fixed box is rotationally connected to one end of the rotary cold water pipe, a first bevel gear is fixedly mounted at one end of the rotary cold water pipe, and a water inlet pipe is fixedly connected to one side of the fixed box; a hollow rotating shaft is fixedly installed between the water inlet pipe and the rotating cold water pipe, a second bevel gear is meshed with the bottom of the first bevel gear, a rotating shaft is fixedly connected with the bottom of the second bevel gear, a fixing shell is fixedly connected with the bottom of the water-cooling demisting box, and the cleaning effect of the device is good.

Description

Technical Field

[0001] The invention belongs to the technical field of desulfurization and relates to a wet desulfurization and demisting device. Background Art

[0002] Desulfurization refers to the process of removing sulfides from fuels such as coal, oil and natural gas. This is because the sulfides in the fuel will generate sulfur dioxide when burned. It is an air pollutant that is harmful to the environment and human health. The demisting step in the desulfurization process is to remove droplets or particles from the exhaust gas of the desulfurization equipment to ensure that the exhaust gas meets the emission standards in environmental regulations.

[0003] In industrial production, traditional desulfurization and demisting devices often have many problems. The single desulfurization method leads to poor desulfurization effect, and cannot effectively reduce the sulfur content in coal, resulting in limited demisting capacity, making it difficult to ensure the cleanliness of the exhaust gas, and incomplete removal of droplets in the gas. In terms of heat utilization, there is a lack of effective heat recovery mechanism, resulting in a large waste of energy and increased production and operating costs. For the cleaning of the demister, the common method has the problem of incomplete and uneven flushing, which easily leads to droplet accumulation and scaling, thereby affecting the demisting efficiency. Moreover, due to untimely cleaning and poor results, the demister is prone to wear and corrosion due to dirt accumulation, shortening its service life and increasing equipment replacement costs. It will also cause system shutdown and maintenance due to demisting failures, affecting the continuity and stability of production. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a wet desulfurization and demisting device, which has a better cleaning effect.

[0005] To achieve the above object, the present invention discloses a wet desulfurization and demisting device, comprising a desulfurization box, the top of which is connected to an inlet pipe, and a demisting and cleaning mechanism is provided on one side of the desulfurization box;

[0006] The demisting cleaning mechanism comprises an exhaust pipe, which is fixedly connected to one side of the desulfurization box, an exhaust fan is fixedly installed inside the exhaust pipe, an end of the exhaust pipe is connected to a water-cooled demisting box, a demisting device body is fixedly installed inside the water-cooled demisting box, a rotating cold water pipe is rotatably connected to the inside of the demisting body, an annular water pipe is sleeved on the outside of the rotating cold water pipe, one end of the rotating cold water pipe is rotatably connected to a fixing box, one end of the rotating cold water pipe is fixedly installed with a first bevel gear, one side of the fixing box is fixedly connected to a water inlet pipe, a hollow rotating shaft is fixedly installed between the water inlet pipe and the rotating cold water pipe, a second bevel gear is meshed with the bottom of the first bevel gear, and the bottom of the second bevel gear is fixedly connected to the rotating shaft, the bottom of the water-cooled demisting box is fixedly connected to a fixed shell, a motor is fixedly installed on the bottom of the inner wall of the fixed shell, a cooling water tank is fixedly installed on the top of the water-cooled demisting box, and a water-cooled heat recovery mechanism is arranged between the cooling water tank and the water-cooled demisting box.

[0007] Preferably, the water-cooled heat recovery mechanism includes a cold water pipe, which is fixedly connected to the bottom of the cooling water tank. The bottom of the cold water pipe is connected to a heat exchange pipe. A water cooling block is fixedly installed on the top of the cold water pipe inside the desulfurization tank. Connecting water pipes are fixedly connected on both sides of the cooling water tank. A circulating water pump is fixedly installed between the connecting water pipe and the cold water pipe.

[0008] Preferably, a cooling water replenishing pipe is connected to the top of the cooling water tank, a heat exchange box is installed on one side of the bottom of the water-cooled demisting box, and an air intake pipe is connected between the heat exchange box and the desulfurization box.

[0009] Preferably, one end of the connecting water pipe passes through the heat exchange box and extends into the interior of the heat exchange box. The connecting water pipe is connected to a spiral heat exchange tube at one end. The spiral heat exchange tube is made of aluminum alloy. One end of the connecting water pipe passes through the heat exchange box and extends into the interior of the heat exchange box.

[0010] Preferably, one end of the water-cooled demisting box is fixedly connected to a first circulation pipe, and a connecting pipe is provided at the bottom of the first circulation pipe.

[0011] Preferably, one end of the connecting pipe passes through the heat exchange box and extends into the interior of the heat exchange box, the connecting pipe is connected to the heat exchange box, and the connecting pipe is fixedly connected to the first circulation pipe via a second circulation pipe.

[0012] Preferably, an activated carbon desulfurization plate is fixedly installed on the inner wall of the desulfurization box near the air inlet pipe, an isolation plate is fixedly installed on the inner wall of the desulfurization box near the top of the activated carbon desulfurization plate, and a discharge pipe is fixedly connected to one side of the desulfurization box.

[0013] Preferably, the number of the annular water pipes is set to two, and a fixed pipe is connected between the two annular water pipes and the rotating cold water pipe, and water spray holes are opened on one side surface of the fixed pipe and the annular water pipe.

[0014] Preferably, the heat exchange tube is made of stainless steel, and the bottom of the heat exchange tube passes through the water-cooled demister box and the demister body in sequence and extends to the inside of the demister body.

[0015] Preferably, the first bevel gear and the second bevel gear are both arranged inside the fixed box, the rotating shaft is fixedly connected to the output end of the motor, the rotating shaft is rotationally connected to the water-cooled defogger box, and a fixing rod is fixedly connected between the fixed box and the inner wall of the water-cooled defogger box.

[0016] The present invention has the following beneficial effects:

[0017] The wet desulfurization and demisting device of the present invention can be used to more effectively reduce the sulfur content in coal by setting a demisting and cleaning mechanism and adopting a dual desulfurization method combining chemical desulfurization and activated carbon dry desulfurization during specific operation, thereby greatly improving the desulfurization effect. The demisting device body in the water-cooled demisting box can effectively capture and remove droplets in the gas to ensure the cleanliness of the exhaust gas. The high-temperature cooling water after heat exchange with the sulfur-containing gas by the rotating cold water pipe is used to reheat the subsequent sulfur gas, thereby realizing heat recovery and utilization, improving heat utilization rate and reducing energy consumption. The cooling water is used for water-cooled demisting again after circulating cooling, thereby realizing multiple utilization of heat and improving the heat utilization effect of the entire device. The efficient desulfurization and heat recovery reduces the use of chemical agents and energy, reduces production and operation costs, and significantly reduces the emission of sulfur-containing gas and droplets.

[0018] Furthermore, by setting up a demisting cleaning mechanism, the surface of the demister body can be fully and evenly washed through a motor-driven rotating washing method, ensuring the washing effect, effectively preventing the accumulation of droplets and scaling, and timely and effectively washing the demister, avoiding the decrease in demisting efficiency due to surface dirt accumulation, and maintaining a good demisting effect for a long time. Regular and efficient washing can reduce the wear and corrosion of the demister, extend its service life, and reduce the cost of equipment replacement. The stable demisting effect contributes to the continuous and stable operation of the entire wet flue gas desulfurization demisting device, and reduces system shutdown and maintenance caused by demisting failures.

[0019] In summary, through the interaction of the above multiple effects, this wet desulfurization and demisting device has many advantages. It adopts a dual desulfurization method, which greatly improves the desulfurization effect and ensures the cleanliness of the exhaust gas. At the same time, the device is equipped with a water-cooled heat recovery mechanism, which can use heat multiple times, significantly reducing energy consumption and costs, and reducing the emission of sulfur-containing gases and droplets. In addition, the demisting cleaning mechanism is driven by a motor to rotate and flush, comprehensively and evenly clean the demister, effectively prevent the accumulation of droplets and scaling, maintain a good demisting effect for a long time, reduce the wear and corrosion of the demister, extend the service life, ensure the stable operation of the device, and reduce the probability of system shutdown and maintenance due to demisting failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the outer structure of the desulfurization box of the present invention.

[0023] Figure 3 It is a schematic diagram of the bottom structure of the cooling water tank of the present invention.

[0024] Figure 4 It is a schematic diagram of the internal structure of the water-cooled demisting box of the present invention.

[0025] Figure 5 For the present invention Figure 3 Side view of the structure.

[0026] Figure 6 It is a schematic structural diagram of the demister body of the present invention.

[0027] Figure 7 It is a front cross-sectional structural schematic diagram of the present invention.

[0028] Figure 8 For the present invention Figure 4 Schematic diagram of the cross-section structure.

[0029] Among them, 1 is a desulfurization box; 2 is an inlet pipe; 3 is an exhaust pipe; 4 is an exhaust fan; 5 is a water-cooled defogger box; 6 is a defogger body; 7 is a rotating cold water pipe; 8 is a ring water pipe; 9 is a fixed box; 10 is a first bevel gear; 11 is a water inlet pipe; 12 is a hollow rotating shaft; 13 is a second bevel gear; 14 is a rotating shaft; 15 is a fixed shell; 16 is a motor; 17 is a cooling water tank; 18 is a cold water pipe; 19 is a heat exchange pipe; 20 is a water cooling block; 21 is a circulating water pump; 22 is a cooling water replenishment pipe; 23 is a connecting water pipe; 24 is a heat exchange box; 25 is an air inlet pipe; 26 is a spiral heat exchange pipe; 27 is a first circulation pipe; 28 is a connecting pipe; 29 is a second circulation pipe; 30 is an activated carbon desulfurization plate; 31 is an isolation plate; 32 is a discharge pipe; 33 is a fixed pipe; 34 is a water spray hole; 35 is a fixed rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be understood that the terms “include” and “comprises” indicate the presence of described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or collections thereof.

[0032] It should also be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, the singular forms "a", "an" and "the" are intended to include plural forms unless the context clearly indicates otherwise.

[0033] It should be further understood that the term "and / or" used in the present specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes these combinations. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in the present invention generally indicates that the associated objects are in an "or" relationship.

[0034] It should be understood that, although the terms first, second, third, etc. may be used to describe preset ranges, etc. in the embodiments of the present invention, these preset ranges should not be limited to these terms. These terms are only used to distinguish preset ranges from each other. For example, without departing from the scope of the embodiments of the present invention, the first preset range may also be referred to as the second preset range, and similarly, the second preset range may also be referred to as the first preset range.

[0035] The word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, 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 part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can usually be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] Various structural schematic diagrams of the embodiments disclosed in the present invention are shown in the accompanying drawings. These figures are not drawn to scale, and some details are magnified and some details may be omitted for the purpose of clear expression. The shapes of various regions and layers shown in the figures and the relative sizes and positional relationships therebetween are only exemplary, and may deviate in practice due to manufacturing tolerances or technical limitations, and those skilled in the art may additionally design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0038] Embodiment 1

[0039] The wet desulfurization and demisting device of the present invention comprises a desulfurization box 1, the top of the desulfurization box 1 is connected to an inlet pipe 2, and a demisting cleaning mechanism is arranged on the side of the desulfurization box 1; the demisting cleaning mechanism comprises an exhaust pipe 3, the exhaust pipe 3 is connected to the side of the desulfurization box 1, an exhaust fan 4 is installed inside the exhaust pipe 3, the end of the exhaust pipe 3 is connected to a water-cooled demisting box 5, a demisting device body 6 is installed inside the water-cooled demisting box 5, a rotating cold water pipe 7 is rotatably connected inside the demisting device body 6, an annular water pipe 8 is arranged on the outer side of the rotating cold water pipe 7, and one end of the rotating cold water pipe 7 is rotatably connected to a fixed Box 9, a first bevel gear 10 is installed at the other end of the rotating cold water pipe 7, a water inlet pipe 11 is connected to the side of the fixed box 9, a hollow rotating shaft 12 is installed between the water inlet pipe 11 and the rotating cold water pipe 7, a second bevel gear 13 is meshed at the bottom of the first bevel gear 10, a rotating shaft 14 is connected to the bottom of the second bevel gear 13, a fixed shell 15 is connected to the bottom of the water-cooled defogger box 5, a motor 16 is installed at the bottom of the inner wall of the fixed shell 15, a cooling water tank 17 is installed on the top of the water-cooled defogger box 5, and a water-cooled heat recovery mechanism is arranged between the cooling water tank 17 and the water-cooled defogger box 5.

[0040] Embodiment 2

[0041] refer to Figures 1 to 8 The present invention discloses a wet desulfurization and demisting device, comprising a desulfurization box 1, the top of the desulfurization box 1 is connected with an inlet pipe 2, and a demisting and cleaning mechanism is arranged on the side of the desulfurization box 1;

[0042] The demisting and cleaning mechanism comprises an exhaust pipe 3, which is fixedly connected to one side of the desulfurization box 1, an exhaust fan 4 is fixedly installed inside the exhaust pipe 3, an end of the exhaust pipe 3 is connected to a water-cooled demisting box 5, a demisting device body 6 is fixedly installed inside the water-cooled demisting box 5, a rotating cold water pipe 7 is rotatably connected inside the demisting device body 6, an annular water pipe 8 is sleeved on the outer side of the rotating cold water pipe 7, one end of the rotating cold water pipe 7 is rotatably connected to a fixed box 9, the other end of the rotating cold water pipe 7 is fixedly installed with a first bevel gear 10, and the fixed box 9 is provided with a first bevel gear 10. A water inlet pipe 11 is fixedly connected to the side, a hollow rotating shaft 12 is fixedly installed between the water inlet pipe 11 and the rotating cold water pipe 7, a second bevel gear 13 is meshed at the bottom of the first bevel gear 10, a rotating shaft 14 is fixedly connected to the bottom of the second bevel gear 13, a fixed shell 15 is fixedly connected to the bottom of the water-cooled defogger box 5, a motor 16 is fixedly installed at the bottom of the inner wall of the fixed shell 15, a cooling water tank 17 is fixedly installed on the top of the water-cooled defogger box 5, and a water-cooled heat recovery mechanism is arranged between the cooling water tank 17 and the water-cooled defogger box 5.

[0043] refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 7As shown, the water-cooled heat recovery mechanism includes a cold water pipe 18, which is fixedly connected to the bottom of the cooling water tank 17. The bottom of the cold water pipe 18 is connected to a heat exchange pipe 19. A water-cooled block 20 is fixedly installed on the top of the cold water pipe 18 inside the desulfurization box 1. Connecting water pipes 23 are fixedly connected to both sides of the cooling water tank 17. A circulating water pump 21 is installed between one end of the connecting water pipe 23 and the cold water pipe 18. A cooling water replenishing pipe 22 is connected to the top of the cooling water tank 17. A heat exchange box 24 is installed at the bottom of the water-cooled demisting box 5. An air intake pipe 25 is connected between the heat exchange box 24 and the desulfurization box 1. The other end of the connecting water pipe 23 is inserted into the heat exchange box 24 and then connected to a spiral heat exchange pipe 26. The spiral heat exchange pipe 26 is made of aluminum alloy. The connecting water pipe 23 extends to the inside of the heat exchange box 24, which is convenient for water-cooled demisting. The sulfur-containing gas is cooled by circulating cooling water, which is convenient for demisting after heat exchange cooling.

[0044] refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 7 As shown, the water-cooled defogger box 5 is fixedly connected to a first circulation pipe 27, a connecting pipe 28 is provided at the bottom of the first circulation pipe 27, the connecting pipe 28 is inserted into the heat exchange box 24, and a second circulation pipe 29 is fixedly connected between the connecting pipe 28 and the first circulation pipe 27 to facilitate the circulation of heated cooling water.

[0045] refer to Figure 1 , Figure 4 and Figure 7 An activated carbon desulfurization plate 30 is fixedly installed on one side of the inner wall of the desulfurization box 1 near the air inlet pipe 25, and an isolation plate 31 is fixedly installed on the inner wall of the desulfurization box 1 near the top of the activated carbon desulfurization plate 30. A discharge pipe 32 is fixedly connected to the side of the desulfurization box 1. The number of annular water pipes 8 is set to two, and a fixed pipe 33 is connected between the two annular water pipes 8 and the rotating cold water pipe 7. Water spray holes 34 are provided on the surfaces of the fixed pipe 33 and the annular water pipe 8 to facilitate flushing of the demister body 6 and avoid accumulation and scaling of droplets on the surface of the demister without affecting the use effect of the demister body 6.

[0046] refer to Figure 3 , Figure 5 and Figure 6 The heat exchange tube 19 is made of stainless steel. The bottom of the heat exchange tube 19 passes through the water-cooled defogger box 5 and the defogger body 6 in sequence and extends to the inside of the defogger body 6, so as to facilitate heat exchange between the heat exchange tube 19 and the defogger body 6 to cool the sulfur gas and facilitate defog.

[0047] refer to Figure 4 , Figure 7 and Figure 8The first bevel gear 10 and the second bevel gear 13 are both arranged inside the fixed box 9, the rotating shaft 14 is fixedly connected to the output end of the motor 16, the rotating shaft 14 is rotatably connected to the water-cooled defogger box 5, and a fixing rod 35 is fixedly connected between the fixed box 9 and the inner wall of the water-cooled defogger box 5 to ensure the fixing effect of the fixed box 9, so that the motor 16 can drive the rotating cold water pipe 7 inside the first bevel gear 10 to rotate.

[0048] The working principle of the present invention is:

[0049] First, the chemicals inside the desulfurization box 1 convert the sulfur in the coal into separable compounds through chemical reactions, thereby reducing the sulfur content. The reacted gas is then discharged into the water-cooled demister box 5 through the exhaust fan 4 inside the exhaust pipe 3. The sulfur gas is then defogged by the demister body 6 inside the water-cooled demister box 5. During the defog process, heat is exchanged through the rotating cold water pipe 7 inside the demister body 6, so that the high-temperature sulfur gas exchanges heat with the rotating cold water pipe 7, and the temperature is transferred to the cooling water inside the rotating cold water pipe 7. The sulfur-containing gas is cooled by the circulating cooling water, and the droplets in the gas are effectively captured and removed by the water-cooled demister box 5. The defogged and cooled sulfur gas then enters the heat exchange box 24 through the first circulation pipe 27, the connecting pipe 28 and the second circulation pipe 29. At the same time, the high-temperature cooling water is pumped into the connecting water pipe through the circulating water pump 21. 23 is circulated, so that the cooling water with high temperature enters the spiral heat exchange tube 26 for heat exchange, so that the temperature of the sulfur gas is increased to a certain extent, so that the sulfur gas with a certain temperature enters the desulfurization box 1 and the activated carbon desulfurization plate 30 through the air inlet pipe 25 for desulfurization. By increasing the temperature of the sulfur gas to a certain extent, the desulfurization speed is accelerated in the process of dry desulfurization using activated carbon to adsorb sulfur dioxide. At the same time, the sulfur gas is reheated by the temperature conduction of water cooling heat exchange, which is more energy-saving, convenient for heat recovery and utilization, and improves the heat utilization rate. Subsequently, the cooling water is circulated to the water cooling block 20 for cooling, and then the gas that has just entered the water-cooled demisting box 5 is water-cooled and demisted again, thereby improving the heat utilization effect. At the same time, the desulfurization effect is improved through double desulfurization, and the efficiency of dry desulfurization is improved. After the desulfurization is completed, it is discharged through the discharge pipe 32.

[0050] When flushing the defogger, the motor 16 is started, so that the motor 16 drives the rotating shaft 14 at its output end to rotate, and then the second bevel gear 13 drives the first bevel gear 10 to rotate. At the same time, since a hollow rotating shaft 12 is installed between the rotating cold water pipe 7 and the water inlet pipe 11, the rotating cold water pipe 7 and the water inlet pipe 11 can rotate, thereby driving the rotating cold water pipe 7 to rotate. At the same time, water flows into the rotating cold water pipe 7 through the water inlet pipe 11, and is sprayed onto the surface of the defogger body 6 through the water spray holes 34 on the surface of the annular water pipe 8 and the fixed pipe 33, thereby completing the effect of flushing the defogger body 6 during the rotation of the annular water pipe 8 and the fixed pipe 33, flushing the defogger, preventing droplets from accumulating and scaling on the surface of the defogger, and ensuring the defogger effect.

[0051] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and disclosure of the invention. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0052] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

[0053] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A wet desulfurization and demisting device, characterized in that: It comprises a desulfurization box (1), the top of the desulfurization box (1) is connected to an inlet pipe (2), and the side of the desulfurization box (1) is provided with a demisting and cleaning mechanism; The demisting and cleaning mechanism comprises an exhaust pipe (3), the exhaust pipe (3) is connected to the side of the desulfurization box (1), an exhaust fan (4) is installed inside the exhaust pipe (3), the end of the exhaust pipe (3) is connected to a water-cooled demisting box (5), a demisting device body (6) is installed inside the water-cooled demisting box (5), a rotating cold water pipe (7) is rotatably connected inside the demisting device body (6), an annular water pipe (8) is sleeved on the outer side of the rotating cold water pipe (7), one end of the rotating cold water pipe (7) is rotatably connected to a fixing box (9), and the other end of the rotating cold water pipe (7) is rotatably connected to a fixing box (9). A first bevel gear (10) is installed at the end, a water inlet pipe (11) is connected to the side of the fixed box (9), a hollow rotating shaft (12) is installed between the water inlet pipe (11) and the rotating cold water pipe (7), a second bevel gear (13) is meshed at the bottom of the first bevel gear (10), a rotating shaft (14) is connected to the bottom of the second bevel gear (13), a fixed shell (15) is connected to the bottom of the water-cooled demisting box (5), a motor (16) is installed at the bottom of the inner wall of the fixed shell (15), and a cooling water tank (17) is installed at the top of the water-cooled demisting box (5).

2. The wet desulfurization and demisting device according to claim 1, characterized in that: A water-cooled heat recovery mechanism is provided between the cooling water tank (17) and the water-cooled demisting box (5), and the water-cooled heat recovery mechanism comprises a cold water pipe (18), the cold water pipe (18) is connected to the bottom of the cooling water tank (17), the bottom of the cold water pipe (18) is connected to a heat exchange pipe (19), a water cooling block (20) is fixedly installed on the top of the cold water pipe (18) inside the desulfurization box (1), connecting water pipes (23) are connected to both sides of the cooling water tank (17), and a circulating water pump (21) is installed between the connecting water pipe (23) and the cold water pipe (18).

3. The wet desulfurization and demisting device according to claim 1, characterized in that: The top of the cooling water tank (17) is connected to a cooling water replenishing pipe (22), the bottom of the water-cooled demisting box (5) is installed with a heat exchange box (24), and an air intake pipe (25) is connected between the heat exchange box (24) and the desulfurization box (1).

4. The wet desulfurization and demisting device according to claim 2, characterized in that: One end of the connecting water pipe (23) is inserted into the interior of the heat exchange box (24) and is connected to the spiral heat exchange pipe (26).

5. The wet desulfurization and demisting device according to claim 1, characterized in that: The end of the water-cooled demisting box (5) is connected to a first circulation pipe (27), and a connecting pipe (28) is provided at the bottom of the first circulation pipe (27).

6. The wet desulfurization and demisting device according to claim 5, characterized in that: The end of the connecting pipe (28) is in communication with the heat exchange box (24), and a second circulation pipe (29) is in communication with the connecting pipe (28) and the first circulation pipe (27).

7. The wet desulfurization and demisting device according to claim 1, characterized in that: An activated carbon desulfurization plate (30) is installed on the inner wall of the desulfurization box (1) near the air inlet pipe (25), an isolation plate (31) is installed on the inner wall of the desulfurization box (1) near the top of the activated carbon desulfurization plate (30), and a discharge pipe (32) is connected to the side of the desulfurization box (1).

8. The wet desulfurization and demisting device according to claim 1, characterized in that: There are two annular water pipes (8), and a fixed pipe (33) is connected between the two annular water pipes (8) and the rotating cold water pipe (7). Water spray holes (34) are provided on the surfaces of the fixed pipe (33) and the annular water pipe (8).

9. The wet desulfurization and demisting device according to claim 1, characterized in that: The bottom of the heat exchange tube (19) passes through the water-cooled demister box (5) and the demister body (6) in sequence and extends to the interior of the demister body (6); The first bevel gear (10) and the second bevel gear (13) are both arranged inside the fixed box (9), the rotating shaft (14) is fixedly connected to the output end of the motor (16), the rotating shaft (14) is rotationally connected to the water-cooled defogger box (5), and a fixing rod (35) is fixedly connected between the fixed box (9) and the inner wall of the water-cooled defogger box (5).

10. A wet desulfurization and demisting device, characterized in that , comprising a desulfurization box (1), the top of the desulfurization box (1) is connected to an inlet pipe (2), and the side of the desulfurization box (1) is provided with a demisting and cleaning mechanism; The demisting and cleaning mechanism comprises an exhaust pipe (3), the exhaust pipe (3) is connected to the side of the desulfurization box (1), an exhaust fan (4) is installed inside the exhaust pipe (3), the end of the exhaust pipe (3) is connected to a water-cooled demisting box (5), a demisting device body (6) is installed inside the water-cooled demisting box (5), a rotating cold water pipe (7) is rotatably connected inside the demisting device body (6), an annular water pipe (8) is sleeved on the outer side of the rotating cold water pipe (7), one end of the rotating cold water pipe (7) is rotatably connected to a fixing box (9), the other end of the rotating cold water pipe (7) is installed with a first bevel gear (10), and the fixing box (9) is connected to the fixing box (11) at the same time. A water inlet pipe (11) is connected to the side of the fixed box (9), a hollow rotating shaft (12) is installed between the water inlet pipe (11) and the rotating cold water pipe (7), a second bevel gear (13) is meshed at the bottom of the first bevel gear (10), a rotating shaft (14) is connected to the bottom of the second bevel gear (13), a fixed shell (15) is connected to the bottom of the water-cooled defogger box (5), a motor (16) is installed at the bottom of the inner wall of the fixed shell (15), a cooling water tank (17) is installed at the top of the water-cooled defogger box (5), and a water-cooled heat recovery mechanism is provided between the cooling water tank (17) and the water-cooled defogger box (5).

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