Feed liquid distributor and atomizer for purifying and drying industrial flue gas

Abstract

The invention relates to a feed liquid distributor and an atomizer for purifying and drying industrial flue gas. The device comprises a feeding disc, wherein the feeding disc is provided with a feeding disc feeding port and a feeding disc water inlet; the water distribution disc is provided with a water distribution disc water inlet and a water distribution disc through opening, the water distribution disc water inlet is communicated with the feeding disc water inlet, the water distribution disc through opening is communicated with the feeding disc feeding opening, the water distribution disc is further provided with a water distribution disc separation ring, and the water distribution disc separation ring is communicated with the water distribution disc water inlet and axially extends along the periphery of the center hole of the water distribution disc; the slurry distribution disc is provided with a slurry distribution disc feed port communicated with the water distribution disc through port, the slurry distribution disc is further provided with a slurry distribution disc separation ring, and the slurry distribution disc separation ring is communicated with the slurry distribution disc feed port and axially extends along the periphery of the center hole of the slurry distribution disc; the middle of the atomizing disc extends in the axial direction to form a connecting table, and atomizing disc outlets extending in the radial direction are distributed in one side of the connecting table in the circumferential direction. The device has the advantages of fog drop refinement, uniform particles and stable structure.

Description

TECHNICAL FIELD

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

[0002] Due to the increasing greenhouse gas emissions, the problem of global warming is becoming increasingly serious, and special purification treatment is required for flue gas. The previous flue gas spraying purification process has been difficult to meet today's environmental protection emission standards. In order to enable the purification liquid to fully react with the flue gas, the medium liquid needs to be dispersed into a very small molecular droplet structure.

[0003] The high-speed centrifugal atomizer is one of the important core equipment in the field of chemical industry and environmental protection, and is widely used in garbage incineration, coal-fired power plant flue gas purification, and polymer material purification and drying. In the flue gas purification treatment of garbage incineration power generation, lime slurry solution needs to be atomized by a high-speed centrifugal atomizer to fully react with acidic gas in the flue gas. If the quality of lime does not meet the standard, and is mixed with flocculent or hard particles, it is easy to cause the blockage of the lime slurry distributor, and the hard particles entering the nozzle of the atomizing disc will also cause damage. Long-term use of poor quality lime slurry may cause slurry release to be blocked and the flow guide block to be worn, eventually causing the dynamic balance of the atomizer to deteriorate and the bearing to be damaged, which seriously affects the atomization effect and the service life of the equipment. SUMMARY

[0004] Therefore, the present application provides a material liquid distributor and an atomizer for industrial flue gas purification and drying, which has the advantages of realizing droplet refinement, uniform particles, and stable structure.

[0005] To solve the above technical problems, the present application provides a material liquid distributor, which comprises: a feed tray provided with a feed tray feed inlet and a feed tray water inlet; a water distribution tray, one axial end of which is connected to one axial end of the feed tray, the water distribution tray being provided with a water distribution tray water inlet and a water distribution tray through hole, the water distribution tray water inlet being in communication with the feed tray water inlet, the water distribution tray through hole being in communication with the feed tray feed inlet, the water distribution tray further being provided with a water distribution tray separation ring, the water distribution tray separation ring being in communication with the water distribution tray water inlet and extending axially along the periphery of the central hole of the water distribution tray; a slurry distribution tray, one axial end of which is connected to the other axial end of the water distribution tray, the slurry distribution tray being provided with a slurry distribution tray feed inlet in communication with the water distribution tray through hole, the slurry distribution tray further being provided with a slurry distribution tray separation ring, the slurry distribution tray separation ring being in communication with the slurry distribution tray feed inlet and extending axially along the periphery of the central hole of the slurry distribution tray; a rotatable atomizing disc, the middle part of the atomizing disc extending axially along the connecting table, and the connecting table being distributed with atomizing disc outlets extending radially on one side in the circumferential direction; The inner side end of each outlet of the atomizing disc abuts against the slurry distribution disc separation ring, and the water distribution disc separation ring extends to the gap between the slurry distribution disc separation ring and the side wall of the connecting table to separate an annular water outlet cavity and an annular material outlet cavity.

[0006] In one embodiment of the present application, the other axial end of the water distribution disc is provided with a first groove, the water inlet of the water distribution disc is formed in the first groove, and a first arc-shaped flow guide plate is arranged in the first groove and connected to the water inlet of the water distribution disc, the first arc-shaped flow guide plate and the side wall of the first groove form a first arc-shaped flow guide groove which is in communication with the central hole of the water distribution disc.

[0007] In one embodiment of the present application, the axial end of the slurry distribution disc is provided with a second groove, the material inlet of the slurry distribution disc is formed in the second groove, and a second arc-shaped flow guide plate is arranged in the second groove and connected to the material inlet of the slurry distribution disc, the second arc-shaped flow guide plate and the side wall of the second groove form a second arc-shaped flow guide groove which is in communication with the central hole of the slurry distribution disc.

[0008] In one embodiment of the present application, the shape of the outlet of the atomizing disc is a fan shape which opens outward along the center of the atomizing disc.

[0009] In one embodiment of the present application, a rotary driving mechanism is further included for providing torque, and the driving end of the rotary driving mechanism is connected to the atomizing disc. The rotary driving mechanism includes a rotor shaft, a rotor and a coil. The rotor is sleeved outside the rotor shaft, and the coil is arranged on the outside of the rotor in the circumferential direction.

[0010] In one embodiment of the present application, the middle part of the atomizing disc is provided with a conical hole extending to the connecting table, and the lower segment of the rotor shaft is locked after being matched with the conical hole through a lock disc gasket and a lock disc nut.

[0011] In one embodiment of the present application, a main shaft outer tube is further included. The lower end of the main shaft outer tube is provided with a lower flange connected to the other axial end of the material feeding disc. The lower flange is connected with a process water pipe and a lime slurry pipe, the process water pipe is in communication with the water inlet of the material feeding disc, and the lime slurry pipe is in communication with the material inlet of the material feeding disc. A base, an upper bearing seat and a lower bearing seat are further included. 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 mounted 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.

[0012] In one embodiment of the present application, a support plate is mounted outside the base, and the process water pipe and the lime slurry pipe are mounted on the support plate through pipe joints. A conical cover is mounted at the bottom end of the support plate, which is tapered away from the support plate. The conical cover is arranged between the support plate and the slurry distribution disc and located outside the atomizer. An opening is arranged at the end of the conical cover away from the support plate. An air inlet joint is arranged on the support plate for blowing air into the conical cover.

[0013] In one embodiment of the present application, the lower flange of the main shaft outer tube, the feed disc and the water distribution disc are each provided with a connecting hole in the circumferential direction and are connected through a connecting piece. A first sealing ring is arranged between the lower flange of the main shaft outer tube and the feed disc. A second sealing ring and a third sealing ring are arranged between the feed disc and the water distribution disc. A fourth sealing ring is arranged between the water distribution disc and the slurry distribution disc.

[0014] The present application provides an atomizer for industrial flue gas purification and drying, comprising the above-mentioned liquid distribution device.

[0015] The above technical scheme of the present application has the following advantages compared with the prior art: The liquid distribution device and the atomizer for industrial flue gas purification and drying according to the present application realize uniform distribution and efficient atomization of liquid medium under high-speed rotation by setting a slurry distribution disc, a water distribution disc and an atomization disc with a reasonable structure. Compared with traditional spray systems or point-type injection atomizers, this structure can significantly improve the refinement degree and spatial distribution uniformity of mist droplets, so that the medium can fully contact with flue gas in the purification tower, thereby improving the purification efficiency.

[0016] The water distribution disc and the slurry distribution disc realize uniform introduction of water and slurry through arc-shaped guide plates and annular guide grooves, effectively avoiding the problems of impact and flow deviation caused by sudden local flow rate, reducing system operation vibration, being conducive to maintaining the dynamic balance of the atomizer as a whole, ensuring stable operation of the equipment at high speed, and prolonging the service life.

[0017] The present application sets a water distribution disc separation ring and a slurry distribution disc separation ring, and forms a three-dimensional separation structure between the separation rings and the connecting table of the atomization disc, separates an annular water outlet cavity and an annular material outlet cavity, and guarantees independent channels for different media during the atomization process, effectively preventing liquid from polluting each other, and improving the process stability and control accuracy of the system.

[0018] The application utilizes bolt flange connection to connect the main shaft outer tube, the feed disc, the water distribution disc, the slurry distribution disc and the atomization disc, and the atomization disc is stably installed on the rotor shaft through the locking disc nut and the conical cooperation mode, the taper structure can realize self-centering and high-precision locking, improve the assembly concentricity and mechanical strength, and reduce the maintenance frequency.

[0019] The application is provided with a conical cover structure, which can effectively block the external heat flow and dust from entering the atomizer cavity, and the conical cover can cooperate with the air inlet joint to form an internal positive pressure airflow, further enhancing the protection effect, reliably protecting the key components such as the slurry distribution disc in the cover, and prolonging the service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to make the content of the application more easily understood, the application will be further described in detail below according to specific embodiments of the application and in conjunction with the drawings.

[0021] Figure 1 It is a structural section view of the atomizer for industrial flue gas purification and drying according to the embodiment of the application.

[0022] Figure 2 It is a structural schematic view of the feed disc according to the embodiment of the application.

[0023] Figure 3 It is a structural schematic view of the water distribution disc according to the embodiment of the application.

[0024] Figure 4 It is a structural schematic view of the slurry distribution disc according to the embodiment of the application.

[0025] Figure 5 It is a sectional structural schematic view of the lime slurry (material pipe) of the atomizer for industrial flue gas purification and drying according to the embodiment of the application.

[0026] Figure 6 It is a sectional structural schematic view of the process water inlet pipeline of the atomizer for industrial flue gas purification and drying according to the embodiment of the application.

[0027] EXPLANATION OF THE DRAWINGS: 1, base; 5, support plate; 7, pipe joint; 11, coil; 12, rotor shaft; 22, rotor; 35, locking disc gasket; 36, locking disc nut; 37, upper bearing seat; 48, lower bearing seat; 52, main shaft outer tube; 53, feed disc; 531, feed disc feed inlet; 532, feed disc water inlet; 54, first sealing ring; 55, water distribution disc; 551, water distribution disc water inlet; 552, water distribution disc through hole; 553, water distribution disc partition ring; 554, annular water outlet cavity; 555, first arc-shaped flow guide plate; 556, first arc-shaped flow guide groove; 557, first groove; 56, second sealing ring; 57, third sealing ring; 58, slurry distributor; 581, slurry distributor inlet; 582, slurry distributor separation ring; 583, annular discharge cavity; 584, second groove; 585, second arc-shaped guide plate; 586, second arc-shaped guide groove; 59, fourth sealing ring; 61, connecting piece; 62, conical cover; 63, bolt; 64, atomizing disc; 641, connecting platform; 642, atomizing disc outlet; 68, process water pipe; 69, lime slurry pipe; 71, air inlet joint. DETAILED DESCRIPTION

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

[0029] In the present application, if the direction (up, down, left, right, front and back) is described, it is only for the convenience of describing the technical solutions of the present application, and is not intended to indicate or imply that the indicated technical features must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0030] In the present application, the meaning of "several" is one or more, the meaning of "multiple" is two or more, and "greater than", "less than", "more than" and the like are understood as not including the number; "above", "below", "within" and the like are understood as including the number. In the description of the present application, if "first" and "second" are described, they are only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0031] In the present application, unless otherwise explicitly limited, the words "set", "install", "connect" and the like should be broadly understood, for example, they can be directly connected, or indirectly connected through an intermediate medium; can be fixedly connected, or can be detachably connected, or can be integrally formed; can be mechanically connected, or can be electrically connected or capable of communicating with each other; can be the communication or interaction relationship between two elements. The skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solutions.

[0032] Referring to Figure 1 , Figure 5 As shown in the figure, the liquid distributor of the embodiment of the present application is applied to an atomizer for industrial flue gas purification and drying, which comprises: The feed disc 53 is provided with a feed disc inlet 531 and a feed disc water inlet 532. a water distribution disc 55 connected to one axial end of the feed disc 53, the water distribution disc 55 being provided with a water distribution disc water inlet 551 and a water distribution disc through hole 552, the water distribution disc water inlet 551 being in communication with the feed disc water inlet 532, the water distribution disc through hole 552 being in communication with the feed disc feed inlet 531, the water distribution disc 55 further being provided with a water distribution disc partition ring 553, the water distribution disc partition ring 553 being in communication with the water distribution disc water inlet 551 and extending axially along the periphery of the central hole of the water distribution disc 55; a slurry distribution disc 58 connected to the other axial end of the water distribution disc 55, the slurry distribution disc 58 being provided with a slurry distribution disc feed inlet 581 in communication with the water distribution disc through hole 552, the slurry distribution disc 58 further being provided with a slurry distribution disc partition ring 582, the slurry distribution disc partition ring 582 being in communication with the slurry distribution disc feed inlet 581 and extending axially along the periphery of the central hole of the slurry distribution disc 58; a rotatable atomization disc 64, a connecting platform 641 extending axially in the middle of the atomization disc 64, atomization disc outlets 642 extending radially distributed on one circumferential side of the connecting platform 641; wherein the slurry distribution disc partition ring 582 abuts the inner side end of each of the atomization disc outlets 642, and the water distribution disc partition ring 553 extends to the gap between the slurry distribution disc partition ring 582 and the side wall of the connecting platform 641 to separate an annular water outlet cavity 554 and an annular material outlet cavity 583.

[0033] In one embodiment, referring to Figure 3 as shown, the other axial end of the water distribution disc 55 is provided with a first recess 557, the water distribution disc water inlet 551 being formed in the first recess 557, the first recess 557 being provided with a first arc-shaped flow guide plate 555 abutting the water distribution disc water inlet 551, the first arc-shaped flow guide plate 555 and the side wall of the first recess 557 forming a first arc-shaped flow guide groove 556 in communication with the central hole of the water distribution disc 55.

[0034] It should be noted that the water distribution disc 55 is used to uniformly distribute the cooling water, and if the water distribution disc 55 is not provided, the temperature and humidity of the deacidification tower and the drying tower will be difficult to effectively control, thereby affecting the overall stability of the system. In addition, the system needs to maintain the dynamic balance of the atomizer to ensure the stability of the operation. By providing the water distribution disc 55 with the first arc-shaped flow guide groove 556, the principle is to introduce the cooling water into the annular water outlet cavity 554, and uniformly guide it into the cavity of the atomization disc 64 through the annular water distribution disc 55. Since the water flow is uniformly distributed inside the entire cavity, it can significantly reduce the vibration during the operation of the atomizer, reduce the wear of the bearings inside the atomizer, prolong the service life of the atomizer, and reduce the maintenance cost in the later period.

[0035] The feeding disc 53 functions to transfer the medium. Through the feeding disc 53, the medium is transferred to the distribution disc of the next stage, thereby realizing continuous conveying of the medium and functioning to prevent overflow of the medium.

[0036] Referring to Figure 4 As shown in the figure, the axial end of the distribution disc 58 is provided with a second groove 584, the distribution disc feeding port 581 is formed in the second groove 584, and the second groove 584 is provided with a second arc-shaped flow guide plate 585 connected with the distribution disc feeding port 581, and the second arc-shaped flow guide plate 585 and the side wall of the second groove 584 form a second arc-shaped flow guide groove 586 in communication with the central hole of the distribution disc 58.

[0037] It should be noted that the main function of the distribution disc 58 is to effectively distribute the conveyed medium. If directly connected through a pipeline, the dynamic balance of the atomizer is easily damaged, and the atomizing disc 64 is also greatly worn. Therefore, in order to ensure the stable conveying of the medium in the system and minimize the fluctuation of the dynamic balance, the feeding disc 53 can introduce the medium and realize uniform dispersion on an annular plane, effectively preventing overflow of the medium. After the medium is uniformly distributed by the distribution disc 58, it flows into the atomizing disc 64, and the impact force is uniformly distributed in the annular discharge cavity 583, so that even in the working condition of increased medium flow, the dynamic balance of the atomizer is not deteriorated. Unlike the point-to-point impact formed by traditional single-point injection, the whole uniform design effectively reduces the running vibration and reduces the damage to the precision of the bearings in the atomizer, thereby significantly prolonging the service life of the atomizer, reducing the maintenance frequency and cost.

[0038] In one embodiment, referring to Figure 1 As shown in the figure, the atomizing disc outlet 642 is circumferentially provided with eighteen, and the shape of the atomizing disc outlet 642 is a fan shape opening outward along the center of the atomizing disc 64.

[0039] In one embodiment, referring to Figure 1 As shown in the figure, it also includes a rotary drive mechanism for providing torque; the rotary drive mechanism 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 circumferentially arranged on the outside of the rotor 22.

[0040] Specifically, the middle part of the atomizing disc 64 is provided with a conical hole extending to the connecting table 641, and the lower segment of the rotor shaft 12 is matched with the conical hole and locked through a lock disc gasket 35 and a lock disc nut 36.

[0041] It should be noted that the rotor shaft 12 is used in cooperation with the rotor 22, and the atomizing disc 64 is driven by the rotor shaft 12 to rotate and spray the medium. In order to ensure that the main shaft can stably operate under the working condition of long-time and high-speed rotation, it is necessary to have sufficient strength and rigidity to avoid the risk of bending or breaking. At the same time, the atomizing disc 64 is assembled at the end of the rotor shaft 12, and the assembly requirement is interference fit. If the gap is too large, it will cause vibration during high-speed operation, resulting in shutdown of the atomizing disc 64 due to excessive vibration. By setting the lower section of the rotor shaft 12 as a tapered shaft structure, and cooperating with the atomizing disc 64 with a tapered hole, the stable connection is formed by using the taper self-locking characteristic. The taper structure can automatically align the shaft center, reduce the centrifugal force fluctuation caused by eccentricity, and reduce the risk of resonance. Through the taper fit, not only the axial positioning accuracy and radial bearing capacity can be significantly improved, but also the vibration and loosening risk during operation can be effectively reduced, which shows excellent structural reliability and operation stability under high-speed rotation working condition.

[0042] The atomizing disc 64 is not easy to corrode and deform under the environment of external high temperature and medium erosion, and the structural stability brought by the taper fit significantly reduces the resonance risk during high-speed operation, avoids damage to the rotor shaft 12, prolongs the service life of the equipment, and reduces the maintenance cost.

[0043] In addition, the lock disc gasket 35 functions to effectively reduce the local pressure by increasing the contact surface between the nut head and the connected part, prevent the pressure concentration on the inner hole surface of the atomizing disc 64 from causing indentation or deformation. The lock disc nut 36 is embedded in the bottom of the rotor shaft 12, and the lock disc nut 36 functions to lock the atomizing disc 64 to prevent loosening during operation.

[0044] In one embodiment, referring to FIG. 1, Figure 1 It further comprises a main shaft outer tube 52; The lower end of the main shaft outer tube 52 is provided with a lower flange connected with the other end of the feed disc 53 in the axial direction; The lower flange is connected with a process water pipe 68 and a lime slurry pipe 69, the process water pipe 68 is communicated with the water inlet 532 of the feed disc, and the lime slurry pipe 69 is communicated with the feed inlet 531 of the feed disc.

[0045] It can be understood that the process water pipe 68 functions to drain the liquid inside the pipe to the inside of the water distribution disc 55; the lime slurry pipe 69 functions to drain the liquid inside the pipe to the inside of the slurry distribution disc 58. Figure 5 and Figure 6 Respectively show the flow direction of lime slurry and process water.

[0046] In one embodiment, it further comprises a base 1, an upper bearing seat 37 and a lower bearing seat 48; The rotor 22 and the coil 11 are arranged in the mounting hole of the base 1; The upper bearing seat 37 and the lower bearing seat 48 are respectively installed at 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. Specifically, 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, and bearings are respectively arranged in the upper, middle and lower sections of the rotor shaft 12. The main shaft outer tube 52 serves to protect the rotor shaft 12. Since the rotor shaft 12 extending from the lower bearing seat 48 will be subjected to a large radial force during high-speed operation, if no bearing is arranged at the bottom of the rotor shaft 12 to counteract the radial force, the rotor shaft 12 will be prone to breakage at the stress concentration position. Through the cooperation of the main shaft structure and the bearings of the sections, the radial bearing capacity and operation stability of the rotor shaft 12 under high-speed working conditions are effectively enhanced.

[0047] It should be noted that in the drying process, the medium to be treated is conveyed through a pipeline to the liquid distributor inside the atomizer, and then guided to the atomizing disc 64. Under the driving of high-speed rotation, the liquid medium is accelerated and thrown out under the action of centrifugal force, and atomized into uniform and fine particles. Through the continuous operation of the high-speed atomizer, the atomized particles are uniformly sprayed into the drying tower. Since the particle size of the sprayed particles is uniform, it is beneficial to the stability of the subsequent drying process. The high-temperature gas in the drying tower fully contacts with the particles, rapidly evaporates the water contained therein, and finally obtains uniform and fine dried material.

[0048] Referring to Figure 1 As shown in the drawings, the lower flange of the main shaft outer tube 52, the feed disc 53 and the water distribution disc 55 are respectively circumferentially provided with connecting holes (such as bolt holes) and connected through connecting pieces 61 (such as bolts). In addition, the first sealing ring 54 is arranged between the lower flange of the main shaft outer tube 52 and the feed disc 53; the second sealing ring 56 and the third sealing ring 57 are arranged between the feed disc 53 and the water distribution disc 55; and the fourth sealing ring 59 is arranged between the water distribution disc 55 and the slurry distribution disc 58.

[0049] In one embodiment, referring to Figure 1 As shown in the drawings, the base 1 is externally provided with a support plate 5, and the process water pipe 68 and the lime slurry pipe 69 are installed on the support plate 5 through pipe joints 7; and the conical cover 62 is connected to the bottom end of the support plate 5 through bolts 63.

[0050] The bottom end of the support plate 5 is provided with a conical cover 62, which is tapered away from the support plate 5. The conical cover 62 covers the part between the support plate 5 and the slurry distribution disc 58 outside the atomizer. The end of the conical cover 62 away from the support plate 5 is provided with an opening. The support plate 5 is provided with an air inlet joint 71 for blowing air into the conical cover 62.

[0051] It should be noted that the conical cover 62 serves to isolate heat and external gas, and at the same time provides physical protection for the key components covered inside, avoiding the influence of the external environment. By continuously blowing gas into the conical cover 62 through the air inlet joint 71, a stable air circulation is formed in the conical cover 62, thereby achieving the auxiliary cooling effect of the inner cavity of the conical cover 62 and further improving the overall heat dissipation performance. The support plate 5 serves as the structural base 1 and supports the entire atomizer, ensuring that the atomizer remains stable during operation and avoiding abnormal operation due to vibration or load deviation.

[0052] During operation, lime slurry and process water are respectively input into the feed disc 53 through the lime slurry pipe 69 and the process water pipe 68. The feed disc 53 is provided with a feed disc feed inlet 531 and a feed disc water inlet 532, which are respectively communicated with the lower slurry distribution disc feed inlet 581 and the water distribution disc water inlet 551, to realize the introduction of the medium.

[0053] The process water is uniformly distributed to the periphery of the central hole of the water distribution disc 55 after being guided by the first arc-shaped flow guide groove 556, and is guided into the annular water outlet cavity 554 formed by the inner wall of the atomization disc 64 by the water distribution disc partition ring 553. This process realizes the annular distribution of the cooling water in the atomizer, buffers the water flow impact, and avoids the formation of vortex or bias flow. Similarly, after the lime slurry is introduced through the second arc-shaped flow guide groove 586, it is uniformly distributed to the periphery of the central hole along the circumferential direction of the slurry distribution disc 58, and flows into the annular material outlet cavity 583 in the atomization disc 64 through the slurry distribution disc partition ring 582, ensuring that the slurry is not biased or skewed and maintaining the dynamic balance of the system.

[0054] The atomization disc 64 is driven by a rotating drive mechanism, and the atomization disc 64 rotates stably at high speed. Under the action of centrifugal force, the medium is thrown out through the multiple radial atomization outlets on one side of the connecting table 641, thereby forming fine droplets with small particle size and uniform distribution.

[0055] The fine mist formed by atomization fully contacts with the flue gas in the purification and drying tower. The lime slurry reacts with the acidic components (such as SO2 and HCl) in the flue gas to generate neutralization products. The water is rapidly evaporated in the high-temperature environment, realizing the combined purification effect of dust removal, acid removal and drying.

[0056] Finally, it should be noted that the above detailed description is merely illustrative of the technical solutions of the present application and is not limiting, and although the present application has been described in detail with reference to the examples, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A feed liquid distributor characterized by, The utility model relates to a kind of atomization device, including: Feeding tray (53) is provided with feeding tray feed port (531), feeding tray water inlet (532); Water distribution tray (55) is connected with the axial one end of the feeding tray (53) at axial one end, the water distribution tray (55) is provided with water distribution tray water inlet (551) and water distribution tray through port (552), the water distribution tray water inlet (551) is communicated with the feeding tray water inlet (532), the water distribution tray through port (552) is communicated with the feeding tray feed port (531), the water distribution tray (55) is further provided with water distribution tray separation ring (553), the water distribution tray separation ring (553) is communicated with the water distribution tray water inlet (551) and extends along the circumferential of the central hole of the water distribution tray (55) axially; Slurry distribution tray (58) is connected with the axial other end of the water distribution tray (55) at axial one end, the slurry distribution tray (58) is provided with slurry distribution tray feed port (581) with the water distribution tray through port (552) is communicated, the slurry distribution tray (58) is further provided with slurry distribution tray separation ring (582), the slurry distribution tray separation ring (582) is communicated with the slurry distribution tray feed port (581) and extends along the circumferential of the central hole of the slurry distribution tray (58) axially; Rotatable atomization tray (64), the middle part of the atomization tray (64) extends axially and has a connecting table (641), and the connecting table (641) is distributed with atomization tray outlet (642) extending radially on one side in the circumferential direction; Wherein, the slurry distribution tray separation ring (582) is in contact with the inner side end of each atomization tray outlet (642), and the water distribution tray separation ring (553) extends to the gap between the slurry distribution tray separation ring (582) and the side wall of the connecting table (641) to separate to form annular water outlet cavity (554) and annular discharge cavity (583).

2. A feed distributor according to claim 1, wherein The axial other end of the water distribution tray (55) is provided with a first groove (557), the water distribution tray water inlet (551) is formed in the first groove (557), and a first arc-shaped flow guide plate (555) is arranged in the first groove (557) and connected with the water distribution tray water inlet (551), the first arc-shaped flow guide plate (555) and the side wall of the first groove (557) form a first arc-shaped flow guide groove (556) communicated with the central hole of the water distribution tray (55).

3. A feed distributor according to claim 1, wherein The axial one end of the slurry distribution tray (58) is provided with a second groove (584), the slurry distribution tray feed port (581) is formed in the second groove (584), and a second arc-shaped flow guide plate (585) is arranged in the second groove (584) and connected with the slurry distribution tray feed port (581), the second arc-shaped flow guide plate (585) and the side wall of the second groove (584) form a second arc-shaped flow guide groove (586) communicated with the central hole of the slurry distribution tray (58).

4. A feed distributor according to claim 1, wherein The shape of the atomization tray outlet (642) is fan-shaped, which opens outward along the center of the atomization tray (64).

5. A feed distributor according to claim 1, wherein Further including a rotary drive mechanism for providing torque, and the driving end of the rotary drive mechanism is connected with the atomization tray (64). The rotating driving mechanism comprises a rotor shaft (12), a rotor (22) and a coil (11); The rotor (22) is sleeved outside the rotor shaft (12), and the coil (11) is arranged outside the rotor (22) in a circumferential direction.

6. A feed distributor according to claim 5, wherein A middle part of the atomizing disc (64) is provided with a conical hole extending to the connecting table (641), and a lower segment of the rotor shaft (12) is locked after being matched with the conical hole through a lock disc gasket (35) and a lock disc nut (36).

7. A feed distributor according to claim 5, wherein Further comprising a main shaft outer tube (52); A lower end of the main shaft outer tube (52) is provided with a lower flange connected with the other axial end of the feeding disc (53); The lower flange is connected with a process water pipe (68) and a lime slurry pipe (69), the process water pipe (68) is communicated with a water inlet (532) of the feeding disc, and the lime slurry pipe (69) is communicated with a feeding port (531) of the feeding disc; Further comprising a base (1), an upper bearing seat (37) and a lower bearing seat (48); The rotor (22) and the coil (11) are arranged in mounting holes of the base (1); The upper bearing seat (37) and the lower bearing seat (48) are respectively arranged at upper and lower ends of the base (1); Upper, middle and lower segments 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).

8. A feed distributor according to claim 7, wherein A support plate (5) is arranged outside the base (1), and the process water pipe (68) and the lime slurry pipe (69) are arranged on the support plate (5) through pipe joints (7); A conical cover (62) is arranged at a bottom end of the support plate (5), the conical cover (62) is contracted away from the support plate (5), the conical cover (62) is arranged between the support plate (5) and the slurry distribution disc (58) and located at a part outside the atomizer, an end of the conical cover (62) away from the support plate (5) is provided with an opening, and the support plate (5) is provided with an air inlet joint (71) for blowing air into the conical cover (62).

9. A feed distributor according to claim 8, wherein, The lower flange of the main shaft outer tube (52), the feeding disc (53) and the water distribution disc (55) are respectively provided with connecting holes in a circumferential direction and are connected through a connecting piece (61); A first sealing ring (54) is arranged between the lower flange of the main shaft outer tube (52) and the feeding disc (53); A second sealing ring (56) and a third sealing ring (57) are arranged between the feeding disc (53) and the water distribution disc (55); A fourth sealing ring (59) is arranged between the water distribution disc (55) and the slurry distribution disc (58).

10. An atomizer for industrial flue gas cleaning and drying, characterized by The liquid distributor comprises the liquid distributor according to any one of claims 1-9.

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