Cooling system of atomizer for purifying and drying industrial flue gas

Abstract

The invention relates to a cooling system of an atomizer for purifying and drying industrial flue gas. The rotary driving mechanism comprises a rotor shaft, a rotor and a coil, the rotor shaft is sleeved with the rotor, and the coil is arranged on the outer side of the rotor in the circumferential direction; the mounting seat body is provided with a water inlet and a water return port; the water jacket is arranged on the outer side of the coil, and a spiral water tank is formed between the outer side wall of the water jacket and the inner side wall of the mounting hole of the mounting seat body; the cooling passage comprises a water inlet, a water return port, an upper cooling water channel, a first lower cooling water channel, a second lower cooling water channel, an upper transition water channel and a lower transition water channel; the upper cooling water channel is communicated with the spiral water channel; the first lower cooling water channel and the second lower cooling water channel are communicated with two ends of the lower side of the spiral water channel; the upper transition water channel is respectively communicated with the upper cooling water channel and the water return port, and the lower transition water channel is respectively communicated with the first lower cooling water channel and the second lower cooling water channel; the first lower cooling water channel is communicated with the water inlet. The working temperature of the coil and the bearing can be effectively reduced under the high-temperature working condition.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of atomizers, in particular to a cooling system of an atomizer for industrial flue gas purification and drying. BACKGROUND

[0002] Global warming caused by increased greenhouse gas emissions is becoming increasingly serious, and flue gas requires special purification treatment.

[0003] As one of the important core devices in the fields of chemical industry and environmental protection, atomizers are widely used in waste incineration, flue gas purification of coal-fired power generation, and drying of high polymer material purification, etc. In the flue gas purification treatment of waste incineration power generation, lime slurry solution needs to be atomized by a high-speed centrifugal atomizer to fully react with acidic gases in the flue gas.

[0004] The existing atomizer has the following disadvantages under the long-term action of high temperature, high humidity and high corrosive flue gas: the special environment temperature of the bearing during the working process of the atomizer is high, the lubrication condition is deteriorated, which significantly shortens the service life of the bearing; the motor coil is prone to overheating during long-time load operation, and the cooling efficiency is insufficient, which not only reduces the atomization effect, but also shortens the service life of the equipment and increases the maintenance cost. SUMMARY

[0005] Therefore, the present application provides a cooling system of an atomizer for industrial flue gas purification and drying, which can effectively reduce the working temperature of the coil and the bearing under high temperature working conditions, maintain the dynamic balance stability of the atomizer, and thus improve the overall efficiency of the flue gas purification and drying process and the reliability of the equipment operation.

[0006] To solve the above technical problems, the present application provides a cooling system of an atomizer for industrial flue gas purification and drying, comprising: A rotary driving mechanism for driving the working of the liquid distributor; the rotary driving mechanism comprises a rotor shaft, a rotor and a coil, the rotor is sleeved outside the rotor shaft, and the coil is arranged on the outer side of the rotor in a circumferential direction; A mounting seat body, the side wall of which is provided with a water inlet and a backwater inlet, and the rotor and the coil are arranged in the mounting hole of the mounting seat body; A water jacket is arranged outside the coil, and a spiral water groove is formed between the outer side wall of the water jacket and the inner side wall of the mounting hole of the mounting seat body; A cooling passage for cooling liquid flow, comprising a water inlet, a backwater inlet, an upper cooling water channel, a first lower cooling water channel, a second lower cooling water channel, an upper transition water channel and a lower transition water channel; The upper cooling water channel is arranged at the upper side end of the mounting seat body and communicates with the upper side end of the spiral water groove, and the first lower cooling water channel and the second lower cooling water channel are respectively arranged at the lower side ends of the mounting seat body and communicate with the lower side ends of the spiral water groove. The upper transition water channel and the lower transition water channel are respectively arranged at the upper and lower ends of the mounting seat body; The upper transition water channel is respectively communicated with the upper cooling water channel and the backwater outlet, and the lower transition water channel is respectively communicated with the first lower cooling water channel and the second lower cooling water channel; the first lower cooling water channel is communicated with the water inlet.

[0007] In an embodiment of the present application, the outer wall of the water jacket is provided with spiral guide plates to form the spiral water channel between the inner wall of the mounting hole of the mounting seat body.

[0008] In an embodiment of the present application, the mounting seat body comprises a main shaft outer tube, a base, an upper bearing seat and a lower bearing seat; the rotor and the coil are arranged in the mounting hole of the base; the upper bearing seat and the lower bearing seat are respectively arranged at the upper and lower ends of the base; the upper, middle and lower sections of the rotor shaft are respectively rotatably connected to the upper bearing seat, the lower bearing seat and the main shaft outer tube; The upper end of the main shaft outer tube is provided with an upper flange, the upper end of the upper bearing seat is provided with an upper cooling cover, and the lower bearing seat and the upper flange are provided with a lower cooling cover.

[0009] In an embodiment of the present application, the side end of the upper bearing seat is provided with an upper backwater block connected to the backwater outlet; and the side end of the base is provided with a lower water inlet block connected to the water inlet.

[0010] In an embodiment of the present application, the upper cooling water channel is arranged between the base and the upper bearing seat, the first lower cooling water channel and the second lower cooling water channel are arranged at the side end of the base, and the first lower cooling water channel is communicated with the lower water inlet block. The end of the lower bearing seat is provided with a first annular water channel which is not closed to form the lower transition water channel with the lower cooling cover; one end of the first annular water channel is communicated with the first lower cooling water channel, and the other end of the first annular water channel is communicated with the spiral water channel through the second lower cooling water channel.

[0011] In an embodiment of the present application, the end of the upper bearing seat is provided with a second annular water channel which is not closed to form the upper transition water channel with the upper cooling cover; the two ends of the second annular water channel are respectively communicated with the upper cooling water channel and the upper backwater block.

[0012] In an embodiment of the present application, the side walls of the upper cooling water channel and the second lower cooling water channel are respectively provided with plugs.

[0013] In an embodiment of the present application, the material liquid distributor is arranged at the lower end of the main shaft outer tube.

[0014] The technical solution of the present invention has the following advantages compared with the prior art: The present invention discloses a cooling system for an atomizer used in industrial flue gas purification and drying. The cooling system comprises a spiral water tank, a first annular water tank, a second annular water tank, upper and lower transition channels, and inlet and outlet water blocks, forming a cooling pathway. This system effectively removes heat generated by high-temperature components such as coils and bearings, ensuring continuous and stable operation of the atomizer under high-temperature conditions. This cooling system can operate stably for extended periods under high-temperature conditions, preventing shutdowns due to coil or bearing overheating, and ensuring the continuity and stability of the flue gas purification and drying process. Attached Figure Description

[0015] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0016] Figure 1 This is a structural cross-sectional view of the cooling system of an atomizer for industrial flue gas purification and drying according to an embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the circulation on one side of the cooling system of an atomizer for industrial flue gas purification and drying according to an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the circulation on the other side of the cooling system of the atomizer for industrial flue gas purification and drying according to an embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the structure of the water jacket according to an embodiment of the present invention.

[0020] Figure 5 This is a schematic diagram of the upper bearing housing according to an embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram of the structure of the lower bearing housing according to an embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the feed tray structure according to an embodiment of the present invention.

[0023] Figure 8 This is a schematic diagram of the water distribution plate according to an embodiment of the present invention.

[0024] Figure 9 This is a schematic diagram of the slurry distribution plate according to an embodiment of the present invention.

[0025] Figure 10 This is a schematic cross-sectional view of the lime slurry (material pipe) of an atomizer for industrial flue gas purification and drying according to an embodiment of the present invention.

[0026] Figure 11This is a schematic cross-sectional view of the inlet water pipeline of the atomizer for industrial flue gas purification and drying according to an embodiment of the present invention.

[0027] Explanation of reference numerals in the instruction manual: 1. Base; 1a. Upper cooling water channel; 1b. First lower cooling water channel; 1c. Second lower cooling water channel; 1d. Upper transition water channel; 1e. Lower transition water channel; 2. Rotary drive mechanism; 3. Plug; 4. Liquid distributor; 5. Mounting base; 6. Inlet; 7. Outlet; 8. Water jacket; 8a. Spiral guide plate; 8b. Spiral water trough; 9. First sealing ring; 10. Second sealing ring; 11. Coil; 12. Rotor shaft; 22. Rotor; 30. Lower bearing; 35. Locking disc gasket; 36. Locking nut; 37. Upper bearing seat; 371. Second annular water groove; 38. Third sealing ring; 40. Third bolt; 44. Upper cold cover; 46. First bolt; 48. Lower bearing seat; 481. First annular water groove; 49. Lower cold cover; 50. Fourth sealing ring; 51. Second bolt; 52. Main shaft outer tube; 53. Feed plate; 531. Feed plate inlet; 532. Feed plate water inlet; 55. Water distribution plate; 551. Water distribution plate inlet; 552. Water distribution plate through-hole; 553. Water distribution plate partition ring; 554. Annular water outlet cavity; 555. First arc-shaped guide plate; 556. First arc-shaped guide groove; 557. First groove; 58. Slurry separator; 581. Slurry separator inlet; 582. Slurry separator ring; 583. Annular discharge chamber; 584. Second groove; 585. Second arc-shaped guide plate; 586. Second arc-shaped guide channel; 64. Atomizing disc; 641. Connecting platform; 642. Atomizing disc outlet; 65. Lower inlet block; 67. Upper return block; 68. Process water pipe; 69. Lime slurry pipe. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0029] In this invention, when directions (up, down, left, right, front, and back) are described, it is only for the purpose of describing the technical solution of this invention, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0030] In this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc., are understood to exclude the stated number; "above," "below," "within," etc., are understood to include the stated number. In the description of this invention, the terms "first" and "second" are used only to distinguish technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0031] In this invention, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; a fixed connection, a detachable connection, or an integrally formed connection; a mechanical connection, an electrical connection, or a connection capable of mutual communication; or the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this invention based on the specific content of the technical solution.

[0032] Reference Figures 1 to 3 As shown, a cooling system for an atomizer used for industrial flue gas purification and drying according to an embodiment of the present invention includes: A rotary drive mechanism 2 is used to drive the operation of the liquid distributor 4; the rotary drive mechanism 2 includes a rotor shaft 12, a rotor 22 and a coil 11, the rotor 22 is sleeved on the outside of the rotor shaft 12, and the coil 11 is arranged circumferentially on the outside of the rotor 22; The mounting base 5 has a water inlet 6 and a water outlet 7 on its side wall, and the rotor 22 and the coil 11 are disposed in the mounting hole of the mounting base 5. A water jacket 8 is disposed on the outside of the coil 11, and a spiral water groove 8b is formed between the outer wall of the water jacket 8 and the inner wall of the mounting hole of the mounting base 5. The cooling passage for coolant flow includes an inlet 6, an outlet 7, an upper cooling water channel 1a, a first lower cooling water channel 1b, a second lower cooling water channel 1c, an upper transition water channel 1d, and a lower transition water channel 1e. The upper cooling water channel 1a is located on the upper end of the mounting base 5 and communicates with the upper end of the spiral water channel 8b. The first lower cooling water channel 1b and the second lower cooling water channel 1c are respectively located at the lower ends of the mounting base 5 and communicate with the lower ends of the spiral water channel 8b. The upper transition waterway 1d and the lower transition waterway 1e are respectively disposed at the upper and lower ends of the mounting base 5; The upper transition water channel 1d is connected to the upper cooling water channel 1a and the return water port 7 respectively, and the lower transition water channel 1e is connected to the first lower cooling water channel 1b and the second lower cooling water channel 1c respectively; the first lower cooling water channel 1b is connected to the water inlet 6.

[0033] Reference Figure 4 As shown, the outer wall of the water jacket 8 is provided with spiral guide plates 8a, which form the spiral water groove 8b between the spiral guide plates and the inner wall of the mounting hole of the mounting base 5.

[0034] In one embodiment, refer to Figure 1 As shown, the mounting base 5 includes a main shaft outer tube 52, a base 1, an upper bearing seat 37, and a lower bearing seat 48; the rotor 22 and the coil 11 are disposed in the mounting holes of the base 1; the upper bearing seat 37 and the lower bearing seat 48 are respectively mounted on the upper and lower ends of the base 1; the upper, middle, and lower sections of the rotor shaft 12 are respectively rotatably connected to the upper bearing seat 37, the lower bearing seat 48, and the main shaft outer tube 52; The upper end of the main shaft outer tube 52 is provided with an upper flange, the upper bearing seat 37 is provided with an upper cold cover 44, and the lower bearing seat 48 and the upper flange are provided with a lower cold cover 49.

[0035] It is understood that the upper, middle, and lower sections of the rotor shaft 12 are respectively equipped with bearings between the upper bearing housing 37, the lower bearing housing 48, and the main shaft outer tube 52. By providing support bearings for the upper, middle, and lower sections of the rotor shaft 12, and cooperating with a cooling system to efficiently cool the bearings, lubricant deterioration and bearing wear are effectively reduced, bearing service life is extended, and equipment failure rate and maintenance costs are reduced.

[0036] In one embodiment, refer to Figure 2 , Figure 3 As shown, the upper bearing seat 37 is provided with an upper return water block 67 connected to the return water port 7 at its side end; the base 1 is provided with a lower inlet water block 65 connected to the inlet water port 6 at its side end.

[0037] Reference Figure 2 , Figure 3 As shown, an upper cooling water channel 1a is provided between the base 1 and the upper bearing seat 37, and a first lower cooling water channel 1b and a second lower cooling water channel 1c are provided on the side end of the base 1. The first lower cooling water channel 1b is connected to the lower water inlet block 65.

[0038] Reference Figure 5As shown, the end of the upper bearing seat 37 is provided with an unclosed second annular water groove 371 to form the upper transition water channel 1d between it and the upper cold cover 44; the two ends of the second annular water groove 371 are respectively connected to the upper cooling water channel 1a and the upper return water block 67.

[0039] Reference Figure 6 As shown, the lower bearing seat 48 is provided with an open first annular water groove 481 at its end to form the lower transition water channel 1e between it and the lower cold cover 49. One end of the first annular water groove 481 is connected to the first lower cooling water channel 1b, and the other end of the first annular water groove 481 is connected to the spiral water groove 8b through the second lower cooling water channel 1c.

[0040] It should be further explained that a second annular water tank 371 is provided inside the upper bearing housing 37, and circulating cooling water from the water jacket 8 is introduced into the upper bearing housing 37 to effectively cool the bearing inside the upper bearing housing 37. The bearing in the lower bearing housing 48 will also generate a high temperature rise during operation. Therefore, a first annular water tank 481 is provided inside the lower bearing housing 48 to cool the bearing, thereby ensuring its stable operation under high load and high speed conditions.

[0041] In one embodiment, refer to Figure 2 , Figure 3 As shown, the upper cooling water channel 1a and the second lower cooling water channel 1c are each provided with a plug 3 on their side walls.

[0042] Specifically, refer to Figure 1 As shown, a first sealing ring 9 and a second sealing ring 10 are respectively provided between the upper and lower ends of the water jacket 8 and the mounting holes of the base 1; the upper cold cover 44 and the upper bearing seat 37 are connected by a first bolt 46 and a third sealing ring 38 is provided; the upper flange of the main shaft outer tube 52 is connected to the lower cold cover 49 by a second bolt 51; a fourth sealing ring 50 is provided between the lower cold cover 49 and the lower bearing seat 48; the lower bearing seat 48 and the base 1 are connected by a third bolt 40.

[0043] It should be noted that the outer tube 52 of the main shaft serves to protect the rotor shaft 12. Since the rotor shaft 12, extending from the lower bearing housing 48, is subjected to significant radial forces during high-speed operation, if no bearing is installed at the bottom of the rotor shaft 12 to counteract these radial forces, it is highly susceptible to breakage at stress concentration points. Through the coordinated operation of the main shaft structure and the bearings in each section, the radial load-bearing capacity and operational stability of the rotor shaft 12 under high-speed conditions are effectively enhanced.

[0044] The function of the upper cooling cover 44 is to prevent the internal circulating cooling water of the upper bearing housing 37 from overflowing, thereby ensuring the sealing of the cooling system and the independence of the bearing lubrication system.

[0045] During atomizer operation, the electromagnetic coil 11 generates a significant amount of heat due to current excitation. Considering that conventional air cooling methods are insufficient to meet the cooling requirements under high-temperature conditions, this solution implements a water-cooling system through the coordinated design of the base 1 and the water jacket 8. The water jacket 8 is housed within the base 1, and sealing rings are installed between the water jacket 8 and the base 1, as well as between the contact surfaces of all connecting components, to prevent cooling water leakage. The heat generated by the coil 11 during operation is conducted to the water jacket 8 and promptly carried away by the circulating cooling water, effectively reducing the temperature. This cooling structure ensures the atomizer can operate stably for extended periods in high-temperature environments, preventing shutdowns caused by overheating of the coil 11 and guaranteeing production continuity and equipment reliability. Figures 2 to 3 ①-④ represent the circulation direction of the cooling water.

[0046] In one embodiment, the liquid distributor 4 is disposed at the lower end of the main shaft outer tube 52.

[0047] In one embodiment, refer to Figure 1 , Figure 10 , Figure 11 As shown, the liquid distributor 4 can be configured as follows: The feed tray 53 is provided with a feed tray inlet 531 and a feed tray water inlet 532; The water distribution plate 55 has one axial end connected to one axial end of the feed plate 53. The water distribution plate 55 is provided with a water distribution plate inlet 551 and a water distribution plate through-hole 552. The water distribution plate inlet 551 is connected to the feed plate inlet 532, and the water distribution plate through-hole 552 is connected to the feed plate inlet 531. The water distribution plate 55 is also provided with a water distribution plate partition ring 553. The water distribution plate partition ring 553 is connected to the water distribution plate inlet 551 and extends axially along the periphery of the central hole of the water distribution plate 55. The slurry separating plate 58 has one axial end connected to the other axial end of the water separating plate 55. The slurry separating plate 58 is provided with a slurry separating plate inlet 581 that communicates with the water separating plate through-hole 552. The slurry separating plate 58 is also provided with a slurry separating plate partition ring 582, which communicates with the slurry separating plate inlet 581 and extends axially along the periphery of the central hole of the slurry separating plate 58. The atomizing disk 64 is connected to the drive end of the rotary drive mechanism 2. A connecting platform 641 extends axially from the middle of the atomizing disk 64. Atomizing disk outlets 642 extending radially are distributed on one side of the connecting platform 641. The slurry separator ring 582 abuts against the inner end of each atomizing disc outlet 642, and the water separator ring 553 extends to the gap between the slurry separator ring 582 and the side wall of the connecting platform 641 to separate and form an annular water outlet chamber 554 and an annular material outlet chamber 583.

[0048] Reference Figure 8 As shown, a first groove 557 is provided at the other axial end of the water distribution plate 55, and the water inlet 551 of the water distribution plate is formed in the first groove 557. A first arc-shaped guide plate 555 is provided in the first groove 557 and is connected to the water inlet 551 of the water distribution plate. The first arc-shaped guide plate 555 and the side wall of the first groove 557 form a first arc-shaped guide groove 556 that communicates with the central hole of the water distribution plate 55.

[0049] It should be noted that the function of the water distribution plate 55 is to evenly distribute the cooling water. Without the water distribution plate 55, the temperature and humidity of the deacidification tower and the drying tower would be difficult to control effectively, thus affecting the overall stability of the system. Furthermore, the system needs to maintain the dynamic balance of the atomizer to ensure operational stability. By setting up the water distribution plate 55 with the first arc-shaped guide groove 556, the principle is to introduce the cooling water into the annular outlet chamber 554, and then evenly guide it into the atomizing plate 64 cavity through the annular water distribution plate 55. Because the water flow impact is evenly distributed throughout the cavity, it can significantly reduce the vibration during atomizer operation, while also reducing the wear of the internal bearings of the atomizer, extending the service life of the atomizer, and reducing later maintenance costs.

[0050] The feed tray 53 serves to transfer the medium. Through the feed tray 53, the medium can be transferred to the next level distribution tray, thereby realizing the continuous delivery of the medium and preventing the medium from overflowing.

[0051] Reference Figure 9 As shown, a second groove 584 is provided at one axial end of the slurry separating plate 58, and the slurry separating plate inlet 581 is formed in the second groove 584. A second arc-shaped guide plate 585 is provided in the second groove 584 and is connected to the slurry separating plate inlet 581. The second arc-shaped guide plate 585 and the side wall of the second groove 584 form a second arc-shaped guide groove 586 that communicates with the central hole of the slurry separating plate 58.

[0052] It should be noted that the main function of the distribution plate 58 is to effectively distribute the conveyed medium. Direct connection via pipe could easily disrupt the dynamic balance of the atomizer and cause significant wear to the atomizing plate 64. Therefore, to ensure stable medium delivery within the system and minimize dynamic balance fluctuations, the feed plate 53 introduces the medium and evenly disperses it on an annular plane, effectively preventing overflow. After being evenly distributed by the distribution plate 58, the medium flows into the atomizing plate 64, and its impact force is evenly distributed within the annular discharge chamber 583. Even under conditions of increased medium flow, this prevents deterioration of the atomizer's dynamic balance. Unlike the point-to-point impact of traditional single-point injection, this solution, through its overall uniform distribution design, effectively reduces operating vibration and minimizes damage to the precision of the atomizer's internal bearings, thereby significantly extending the atomizer's service life and reducing maintenance frequency and costs.

[0053] Specifically, the atomizing disc 64 has a tapered hole extending to the connecting platform 641 in the middle. After the lower section of the rotor shaft 12 is engaged with the tapered hole, it is locked by the locking disc washer 35 and the locking disc nut 36.

[0054] Specifically, the lower end of the main shaft outer tube 52 is provided with a lower flange that is connected to the other axial end of the feed disc 53; The lower flange is connected to a process water pipe 68 and a lime slurry pipe 69. The process water pipe 68 is connected to the water inlet 532 of the feed pan, and the lime slurry pipe 69 is connected to the feed inlet 531 of the feed pan.

[0055] Understandably, the function of the process water pipe 68 is to guide the liquid inside the pipe into the water distribution plate 55; the function of the lime slurry pipe 69 is to guide the liquid inside the pipe into the slurry distribution plate 58. Figure 10 and Figure 11 The flow directions of lime slurry and process water are shown respectively.

[0056] It should be noted that in the drying process, the medium to be treated needs to be transported through pipelines to the liquid feeder inside the atomizer, and then guided to the atomizing disc 64. Driven by high-speed rotation, the atomizing disc 64 accelerates the liquid medium outward under centrifugal force and atomizes it into uniform and fine particles. Through the continuous high-speed operation of the atomizer, these atomized particles are evenly sprayed into the drying tower. Because the sprayed particles have a uniform particle size, it is beneficial to the stability of the subsequent drying process. The high-temperature gas inside the drying tower comes into full contact with these particles, rapidly evaporating the moisture they contain, and finally obtaining a uniform and fine-particle-size dried material.

[0057] In this embodiment, during operation, lime slurry and process water are input into the feed plate 53 via lime slurry pipe 69 and process water pipe 68, respectively. The process water is guided by the first arc-shaped guide channel 556 and evenly distributed to the periphery of the central hole of the water distribution plate 55, and then guided through the water distribution plate partition ring 553 to the annular outlet cavity 554 formed with the inner wall of the atomizing plate 64. This process achieves a uniform annular distribution of cooling water inside the atomizer, buffering water flow impact and preventing the formation of eddies or flow deviation. Similarly, after being introduced through the second arc-shaped guide channel 586, the lime slurry is evenly distributed along the circumference of the slurry distribution plate 58 to the periphery of the central hole, and flows into the annular outlet cavity 583 within the atomizing plate 64 through the slurry distribution plate partition ring 582, ensuring that the slurry remains straight and maintaining the dynamic balance of the system.

[0058] The atomizing disk 64 is driven by the rotary drive mechanism 2, and the atomizing disk 64 rotates at high speed and stably. Under the action of centrifugal force, the medium is thrown out through multiple radial atomizing outlets on one side of the connecting platform 641, thereby forming fine and uniformly distributed droplets.

[0059] The fine mist formed by atomization comes into full contact with the flue gas in the purification and drying tower. The lime slurry reacts with the acidic components in the flue gas (such as SO2, HCl, etc.) to generate neutralization products. The moisture evaporates rapidly under high temperature, achieving a combined purification effect of dust removal, acid removal and drying.

[0060] Meanwhile, the cooling system forms a complete circulating water passage through the water jacket 8 on the outside of the coil 11, the spiral guide plate 8a, the upper and lower cold covers 49 and the annular water tank, so as to achieve efficient cooling of high-heat components such as the coil 11 and bearings, and avoid structural instability or lubrication failure caused by high temperature.

[0061] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A cooling system for an atomizer used for industrial flue gas purification and drying, characterized in that, include: A rotary drive mechanism (2) is used to drive the liquid distributor (4) to work; the rotary drive mechanism (2) includes a rotor shaft (12), a rotor (22) and a coil (11), the rotor (22) is sleeved on the outside of the rotor shaft (12), and the coil (11) is arranged circumferentially on the outside of the rotor (22); The mounting base (5) has a water inlet (6) and a water outlet (7) on its side wall. The rotor (22) and the coil (11) are located in the mounting hole of the mounting base (5). A water jacket (8) is disposed on the outside of the coil (11), and a spiral water groove (8b) is formed between the outer wall of the water jacket (8) and the inner wall of the mounting hole of the mounting base (5). The cooling passage for coolant flow includes an inlet (6), an outlet (7), an upper cooling channel (1a), a first lower cooling channel (1b), a second lower cooling channel (1c), an upper transition channel (1d), and a lower transition channel (1e). The upper cooling water channel (1a) is located on the upper end of the mounting base (5) and communicates with the upper end of the spiral water channel (8b). The first lower cooling water channel (1b) and the second lower cooling water channel (1c) are respectively located at the lower ends of the mounting base (5) and communicate with the lower ends of the spiral water channel (8b). The upper transition waterway (1d) and the lower transition waterway (1e) are respectively disposed at the upper and lower ends of the mounting base (5); The upper transition water channel (1d) is connected to the upper cooling water channel (1a) and the return water port (7) respectively, and the lower transition water channel (1e) is connected to the first lower cooling water channel (1b) and the second lower cooling water channel (1c) respectively; the first lower cooling water channel (1b) is connected to the water inlet (6).

2. The cooling system for an atomizer used for industrial flue gas purification and drying according to claim 1, characterized in that, The outer wall of the water jacket (8) is provided with spiral guide plates (8a) to form the spiral water groove (8b) between the spiral guide plates (8a) and the inner wall of the mounting hole of the mounting base (5).

3. The cooling system for an atomizer used for industrial flue gas purification and drying according to claim 1, characterized in that, The mounting base (5) includes a main shaft outer tube (52), a base (1), an upper bearing seat (37), and a lower bearing seat (48); the rotor (22) and the coil (11) are disposed in the mounting holes of the base (1); the upper bearing seat (37) and the lower bearing seat (48) are respectively mounted on the upper and lower ends of the base (1); the upper, middle, and lower sections of the rotor shaft (12) are respectively rotatably connected to the upper bearing seat (37), the lower bearing seat (48), and the main shaft outer tube (52); The upper end of the main shaft outer tube (52) is provided with an upper flange, the upper end of the upper bearing seat (37) is provided with an upper cold cover (44), and the lower bearing seat (48) and the upper flange are provided with a lower cold cover (49).

4. The cooling system for an atomizer used for industrial flue gas purification and drying according to claim 3, characterized in that, The upper bearing seat (37) is provided with an upper return water block (67) connected to the return water port (7) at its side end; the base (1) is provided with a lower inlet water block (65) connected to the inlet water port (6) at its side end.

5. The cooling system for an atomizer used for industrial flue gas purification and drying according to claim 4, characterized in that, The upper cooling water channel (1a) is provided between the base (1) and the upper bearing seat (37), and the first lower cooling water channel (1b) and the second lower cooling water channel (1c) are provided on the side of the base (1). The first lower cooling water channel (1b) is connected to the lower water inlet block (65). The lower bearing housing (48) is provided with an open first annular water groove (481) at its end to form the lower transition water channel (1e) between it and the lower cold cover (49). One end of the first annular water groove (481) is connected to the first lower cooling water channel (1b), and the other end of the first annular water groove (481) is connected to the spiral water groove (8b) through the second lower cooling water channel (1c).

6. The cooling system for an atomizer used for industrial flue gas purification and drying according to claim 5, characterized in that, The upper bearing housing (37) is provided with an unclosed second annular water tank (371) at its end to form the upper transition water channel (1d) between it and the upper cold cover (44); the two ends of the second annular water tank (371) are respectively connected to the upper cooling water channel (1a) and the upper return water block (67).

7. The cooling system for an atomizer used for industrial flue gas purification and drying according to claim 6, characterized in that, The upper cooling water channel (1a) and the second lower cooling water channel (1c) are each provided with a plug (3) on their side walls.

8. The cooling system for an atomizer used for industrial flue gas purification and drying according to claim 3, characterized in that, The liquid distributor (4) is located at the lower end of the outer tube of the main shaft (52).

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