Wear-resistant and corrosion-resistant combined type nozzle rotary atomization device

Abstract

The utility model relates to a wear-resistant and corrosion-resistant combined type nozzle rotary atomization device, and relates to the technical field of rotary atomizers, the rotary atomization device comprises an atomization rotary disc, and a main shaft is coaxially arranged on the atomization rotary disc; a plurality of atomization spray holes are formed in the side wall of the atomization pipe in a penetrating mode, and the atomization spray holes are sequentially formed in the circumferential direction of the atomization pipe at intervals; the atomizing rotating disc is located at one axial end of the atomizing pipe and rotationally connected with the atomizing pipe, the main shaft is coaxially sleeved with the atomizing pipe, and the outer side wall of the main shaft and the inner side wall of the atomizing pipe are arranged at intervals; the inner lining pipe is sleeved with the atomization pipes, a plurality of through holes are formed in the inner lining pipe, the through holes correspond to the atomization pipes one to one, and the through holes communicate with the corresponding atomization pipes. The wear resistance of the atomizing nozzle in the rotary atomizing device can be improved, so that the service life of the atomizing nozzle can be prolonged.

Description

Technical Field

[0001] This application relates to the technical field of rotary atomizers, and particularly to a wear-resistant and corrosion-resistant composite nozzle rotary atomization device. Background Art

[0002] The nozzle rotary atomization device, also known as a rotary atomizing nozzle, is mainly used in a rotary atomizer. In sludge incineration and waste incineration treatment, it is necessary to perform deacidification treatment on the flue gas after incineration, and the rotary atomizer plays a key role in the flue gas deacidification treatment process. The rotary atomizer mainly uses an atomizing nozzle to atomize and eject lime slurry, so that the atomized lime slurry can react and neutralize with the flue gas in the reaction tower, thereby removing harmful substances such as sulfur and nitrate in the flue gas and making its emissions meet the standards.

[0003] Currently, the rotary atomizer mainly realizes the atomization and ejection of liquid raw materials through an atomizing nozzle. Common atomizing nozzles mainly include an atomizing turntable and an atomizing tube. A number of atomizing spray holes are opened on the outer side wall of the atomizing tube. The atomizing turntable is rotatably arranged inside the atomizing tube, and the atomizing turntable is connected to a motor through a corresponding main shaft. Then, when the lime slurry flows onto the atomizing turntable, the atomizing turntable rotates at a high speed under the drive of the motor. Under the action of strong centrifugal force, the lime slurry is ejected through the atomizing spray holes, which atomizes the lime slurry into micron-sized droplets.

[0004] Since there may be some impurities or hard particles in the lime slurry solution, when the atomizing turntable rotates at a high speed, the impurities or hard particles will rub against the inner side wall of the atomizing tube. After long-term use, it can cause relatively serious wear of the atomizing nozzle, thereby reducing the service life of the atomizing nozzle. Utility Model Content

[0005] This application provides a wear-resistant and corrosion-resistant composite nozzle rotary atomization device, the purpose of which is to reduce the wear of the atomizing nozzle and thereby improve the service life of the atomizing nozzle.

[0006] A wear-resistant and corrosion-resistant composite nozzle rotary atomization device provided by this application adopts the following technical solution: A wear-resistant and corrosion-resistant composite nozzle rotary atomization device includes an atomizing turntable, and a main shaft is coaxially arranged on the atomizing turntable; an atomizing tube, and a number of atomizing spray holes are penetrated and opened on the side wall of the atomizing tube, and the number of atomizing spray holes are sequentially arranged at intervals along the circumferential direction of the atomizing tube; the atomizing turntable is located at one axial end of the atomizing tube, and the atomizing turntable is rotatably connected to the atomizing tube. The atomizing tube is coaxially sleeved outside the main shaft, and a gap is provided between the outer side wall of the main shaft and the inner side wall of the atomizing tube; a lining tube, the atomizing tube is sleeved outside the lining tube, and a number of through holes are opened on the lining tube, and the through holes are arranged in one-to-one correspondence with the atomizing tube, and the through holes are communicated with the corresponding atomizing tubes.

[0007] By adopting the above technical solution, first, through the cooperative setting of the main shaft, the atomizing turntable and the atomizing pipe, the main shaft is used to connect the motor. When the motor drives the main shaft to rotate, the atomizing turntable rotates. At this time, the corresponding liquid raw material is injected into the atomizing pipe through the gap between the atomizing pipe and the main shaft. When the liquid raw material contacts the high-speed rotating atomizing turntable, under the action of strong centrifugal force, the liquid raw material is ejected through the atomizing spray holes, which enables the liquid raw material to be atomized into tiny droplets, thus realizing the function of the atomizing nozzle.

[0008] Secondly, since there is a lining pipe arranged in the atomizing pipe, the lining pipe can separate the liquid raw material from the inner side wall of the atomizing pipe, so that the solid impurities or hard particles that may exist in the liquid raw material no longer directly contact the inner side wall of the atomizing pipe. This can improve the wear resistance of the atomizing nozzle in the rotary atomizing device, and further improve the service life of the atomizing nozzle.

[0009] Optionally, the lining pipe is detachably connected to the atomizing pipe.

[0010] By adopting the above technical solution, since the lining pipe is detachably connected to the atomizing pipe, the lining pipe can be replaced in time, and further improve the service life of the atomizing nozzle.

[0011] Optionally, a closing plate is arranged at one end of the atomizing pipe along its axial direction. The closing plate is detachably connected to the atomizing pipe. A relief hole is provided on the closing plate. The main shaft is coaxially inserted and matched with the relief hole, and the inner side wall of the relief hole is spaced from the outer side wall of the main shaft; a plurality of insertion columns are arranged on the outer side wall of the lining pipe, and a plurality of insertion slots are provided on the inner side wall of the atomizing pipe. The length direction of the insertion slots is arranged along the axial direction of the atomizing pipe, and the insertion slots penetrate through one end of the atomizing pipe facing the closing plate along their own length direction. The insertion columns and the insertion slots are arranged in one-to-one correspondence, and the insertion columns are inserted and matched with the corresponding insertion slots.

[0012] By adopting the above technical solution, the cooperative setting of the insertion columns on the lining pipe and the insertion slots on the inner side wall of the atomizing pipe realizes the detachable connection between the lining pipe and the atomizing pipe. After the lining pipe and the atomizing pipe are installed, the detachable connection between the closing plate and the atomizing pipe can fix the lining pipe, thereby ensuring the stable installation of the atomizing pipe and the lining pipe.

[0013] Optionally, a lining disk is arranged on the side of the atomizing turntable facing the atomizing pipe. The lining disk is coaxially connected to the atomizing turntable; the lining pipe is sleeved outside the lining disk, and the lining disk and the inner lining of the lining pipe are rotatably connected.

[0014] By adopting the above technical solution, the setting of the inner lining disk on the atomizing turntable can separate the atomizing turntable from the liquid raw material, so that the solid impurities or hard particles that may exist in the liquid raw material no longer contact the atomizing turntable, which can improve the wear resistance of the atomizing nozzle and thus improve the service life of the atomizing nozzle.

[0015] Optionally, the inner lining disk is detachably connected to the atomizing turntable.

[0016] By adopting the above technical solution, the detachable connection between the inner lining disk and the atomizing turntable facilitates the timely replacement of the inner lining disk. Thus, when the inner lining disk is severely worn, the inner lining disk can be replaced in time, which can further improve the service life of the atomizing nozzle.

[0017] Optionally, a heat insulation tube is sleeved outside the atomizing tube, and a plurality of first holes are formed in the side wall of the heat insulation tube. The first holes are arranged in one-to-one correspondence with the atomizing spray holes and are communicated with the corresponding atomizing spray holes.

[0018] By adopting the above technical solution, the setting of the heat insulation tube can provide heat insulation protection for the atomizing tube, thereby improving the heat resistance of the atomizing nozzle, which can improve the service life of the atomizing nozzle.

[0019] Optionally, the heat insulation tube is detachably connected to the atomizing tube.

[0020] By adopting the above technical solution, the detachable connection between the heat insulation tube and the atomizing tube facilitates the timely replacement of a new heat insulation tube when the heat insulation tube fails, which can ensure the protection of the heat insulation tube for the atomizing nozzle.

[0021] Optionally, the heat insulation tube is rotatably connected to the atomizing tube.

[0022] By adopting the above technical solution, since the heat insulation tube is rotatably connected to the atomizing tube, the heat insulation tube and the atomizing tube can rotate relative to each other, thereby being able to adjust the size of the communication space between the first hole and the corresponding atomizing spray hole, and being able to adjust the size of the spray ejected by the atomizing nozzle.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Through the combined setting of the inner lining tube and the inner lining disk, the present application can separate the liquid raw material from the atomizing nozzle, which can improve the service life of the atomizing nozzle.

[0025] 2. Through the setting of the heat insulation tube, the present application can improve the heat resistance of the atomizing nozzle, which can improve the service life of the atomizing nozzle.

[0026] 3. By providing a detachable connection between the inner liner tube and the inner liner disc in this application, the inner liner tube and the inner liner disc can be replaced in a timely manner, thereby ensuring the wear resistance of the atomizing nozzle. Description of the Drawings

[0027] Figure 1 is a schematic diagram of the overall structure of the nozzle rotary atomizing device of this application.

[0028] Figure 2 is a schematic sectional view of the nozzle rotary atomizing device of this application.

[0029] Figure 3 is a schematic sectional view of the nozzle rotary atomizing device of this application.

[0030] Figure 4 is Figure 1 a partially enlarged schematic structural view of part A in

[0031] In the figure, 1, atomizing turntable; 2, atomizing tube; 21, atomizing spray holes; 22, mounting plate; 221, mounting groove; 23, closing plate; 231, relief hole; 24, insertion slot; 3, main shaft; 4, inner liner tube; 41, through hole; 42, insertion post; 5, inner liner disc; 51, mounting hole; 6, heat insulation tube; 61, first hole; 62, cooling cavity; 63, first tube; 64, second tube; 7, fixing member; 71, fixing slider; 72, fixing bolt; 73, threaded hole; 74, fixing chute. Detailed Description of the Invention

[0032] The following will Figure 1 - in conjunction with the attached Figure 4 drawings, further describe this application in detail.

[0033] A wear-resistant and corrosion-resistant composite nozzle rotary atomizing device, referring to Figure 1 and Figure 2 , includes an atomizing turntable 1, an atomizing tube 2 and a main shaft 3. The main shaft 3 is coaxially arranged with the atomizing turntable 1, and one end of the main shaft 3 is connected to the atomizing turntable 1. A plurality of atomizing spray holes 21 are penetrated on the outer side wall of the atomizing tube 2, and the plurality of atomizing spray holes 21 are sequentially arranged at intervals along the circumferential direction of the atomizing tube 2. The atomizing turntable 1 is located at one end of the atomizing tube 2, the atomizing turntable 1 is coaxially arranged with the atomizing tube 2, and the atomizing turntable 1 is rotatably connected to the atomizing tube 2. The atomizing tube 2 is sleeved outside the main shaft 3, and the inner side wall of the atomizing tube 2 is spaced from the outer side wall of the main shaft 3.

[0034] Through the coordinated arrangement of the atomizing turntable 1, the main shaft 3 and the atomizing tube 2, the main shaft 3 is used to connect the motor. When the motor drives the main shaft 3 to rotate, the atomizing turntable 1 rotates. At this time, the corresponding liquid raw material is injected into the atomizing tube 2 through the gap between the atomizing tube 2 and the main shaft 3. When the liquid raw material contacts the atomizing turntable 1 rotating at a high speed, under the action of strong centrifugal force, the liquid raw material is sprayed through the atomizing nozzle 21, which makes the liquid raw material atomized into tiny droplets, which can realize the function of the atomizing nozzle of the rotary atomizer. In this embodiment, the atomizing tube 2 is made of stainless steel 316L material, and the atomizing turntable 1 is made of Hastelloy C263, which can improve the high temperature resistance, corrosion resistance and wear resistance of the atomizing nozzle.

[0035] Reference Figure 1 and Figure 2 A mounting plate 22 is provided at one axial end of the atomizing tube 2. The mounting plate 22 is coaxially detachably connected to the atomizing tube 2. Specifically, the mounting plate 22 is connected to the atomizing tube 2 by bolts. A mounting groove 221 is provided on the side of the mounting plate 22 facing the atomizing tube 2. The mounting groove 221 is communicated with the atomizing tube 2, and the atomizing turntable 1 is rotatably arranged in the mounting groove 221. Therefore, the arrangement of the mounting plate 22 can improve the stability of the connection between the atomizing turntable 1 and the atomizing tube 2.

[0036] Reference Figure 1 and Figure 2 A closing plate 23 is provided at one end of the atomizing tube 2 away from the mounting plate 22. The closing plate 23 is coaxially detachably connected to the atomizing tube 2. Specifically, the closing plate 23 is connected to the atomizing tube 2 by bolts. A clearance hole 231 is provided through the closing plate 23. The clearance hole 231 is coaxially arranged with the main shaft 3. The main shaft 3 is plugged into the clearance hole 231, and the inner wall of the clearance hole 231 is spaced from the outer wall of the main shaft 3. The setting of the closing plate 23 is used to close the atomizing tube 2, and the opening of the clearance hole 231 provides a clearance space for the main shaft 3. At the same time, the inner wall of the clearance hole 231 is spaced from the outer wall of the main shaft 3 to ensure that the liquid raw material can be injected into the atomizing tube 2 through the space between the inner wall of the clearance hole 231 and the main shaft 3.

[0037] Reference Figure 1 and Figure 2 , an inner liner tube 4 is arranged in the atomizing tube 2, the atomizing tube 2 is sleeved on the outside of the inner liner tube 4, and the atomizing tube 2 and the inner liner tube 4 are detachably connected. The inner wall of the inner liner tube 4 is spaced apart from the outer wall of the main shaft 3, and a plurality of through holes 41 are provided on the inner liner tube 4, and the plurality of through holes 41 are spaced apart in sequence along the circumference of the inner liner tube 4. The through holes 41 are arranged one by one corresponding to the atomizing nozzle holes 21, and the through holes 41 are connected to the corresponding atomizing nozzle holes 21. In this embodiment, the inner liner tube 4 is made of ceramic or titanium silicon carbide or tungsten carbide material.

[0038] The inner liner tube 4 is in direct contact with the liquid material, which can isolate the atomizing tube 2 from the liquid material, prevent the inner wall of the atomizing tube 2 from being worn by the liquid material, and improve the service life of the atomizing nozzle. Moreover, due to the detachable connection between the inner liner tube 4 and the atomizing tube 2, the inner liner tube 4 can be replaced in time, and thus by replacing the inner liner tube 4, it can be prevented that the inner liner tube 4 is worn excessively and wears the atomizing tube 2.

[0039] Referring to Figure 2 and Figure 3 , a plurality of insertion posts 42 are arranged on the outer side wall of the inner liner tube 4, and the plurality of insertion posts 42 are arranged at intervals in sequence along the circumferential direction of the inner liner tube 4. A plurality of insertion slots 24 are formed in the inner side wall of the atomizing tube 2, and the plurality of insertion slots 24 are arranged at intervals in sequence along the circumferential direction of the atomizing tube 2. The length direction of the insertion slot 24 is arranged along the axial direction of the atomizing tube 2, and the insertion slot 24 penetrates through one end of the atomizing tube 2 facing the closing plate 23 along its own length direction. The insertion posts 42 and the insertion slots 24 are arranged in one-to-one correspondence, and the insertion posts 42 are in plug-in fit with the corresponding insertion slots 24, and the insertion posts 42 are slidably connected with the inner side wall of the corresponding insertion slots 24 along their own length directions. One end of the inner liner tube 4 abuts against the closing plate 23, and the other end is spaced from the atomizing turntable 1. The matching arrangement of the insertion posts 42 and the insertion slots 24 realizes the detachable connection between the atomizing tube 2 and the inner liner tube 4.

[0040] Referring to Figure 2 and Figure 3 , a lining disk 5 is arranged on the side of the atomizing turntable 1 facing the atomizing tube 2. An installation hole 51 is formed through the lining disk 5, and the installation hole 51 is sleeved outside the main shaft 3. The lining disk 5 is detachably connected with the atomizing turntable 1. Specifically, the lining disk 5 and the atomizing turntable 1 are connected by bolts. The lining disk 5 is in plug-in fit with the inner liner tube 4, and the lining disk 5 is rotatably connected with the inner side wall of the inner liner tube 4. In this embodiment, the inner liner tube 4 is made of ceramic or titanium carbide or tungsten carbide.

[0041] Since the atomizing turntable 1 needs to be in direct contact with the liquid raw material, by arranging the lining disk 5, the liquid raw material is spaced from the atomizing turntable 1, which can prevent the liquid raw material from wearing the lining disk 5, and thus can improve the service life of the atomizing nozzle. Moreover, due to the detachable connection between the lining disk 5 and the atomizing turntable 1, the lining disk 5 can be replaced, and thus by replacing the lining disk 5, it can be prevented that the lining disk 5 is worn excessively and wears the atomizing turntable 1.

[0042] Referring to Figure 1 and Figure 2, an insulating tube 6 is sleeved outside the atomizing tube 2. A plurality of first holes 61 are formed through the insulating tube 6. The plurality of first holes 61 are arranged at intervals in sequence along the circumferential direction of the insulating tube 6. The first holes 61 are arranged in one-to-one correspondence with the atomizing nozzles 21, and the first holes 61 are communicated with the corresponding atomizing nozzles 21. The arrangement of the insulating tube 6 can insulate heat, which can reduce the temperature difference between the inside and outside of the atomizing tube 2, thereby increasing the high-temperature resistance of the atomizing nozzle, so the service life of the atomizing nozzle can be improved.

[0043] Referring to Figure 1 and Figure 2 , the insulating tube 6 is in plug-in fit with the atomizing tube 2, and one axial end of the insulating tube 6 abuts against the mounting plate 22. This facilitates the disassembly of the atomizing tube 2 and the insulating tube 6, which facilitates the replacement of the insulating tube 6, and thus the insulating tube 6 can be replaced in time when it is damaged.

[0044] Referring to Figure 1 and Figure 2 , the insulating tube 6 is rotationally connected to the mounting plate 22 and the outer side wall of the atomizing tube 2 along its own circumferential direction. By rotating the insulating tube 6, the size of the communication space between the first hole 61 and the corresponding atomizing nozzle 21 can be adjusted, and thus the spray size can be changed.

[0045] Referring to Figure 1 and Figure 4 , a plurality of fixing members 7 are arranged between the closing plate 23 and the insulating tube 6. The plurality of fixing members 7 are arranged at intervals in sequence along the circumferential direction of the insulating tube 6. The fixing member 7 includes a fixing slider 71 and a fixing bolt 72. One end of the fixing slider 71 in the length direction is connected to the closing plate 23, and the other end extends to one end of the insulating tube 6 facing the closing plate 23. A threaded hole 73 is formed through the fixing slider 71. The fixing bolt 72 is in plug-in fit with the threaded hole 73, and the fixing bolt 72 is threadedly connected to the inner side wall of the threaded hole 73, and one end of the fixing bolt 72 abuts against the insulating tube 6. With the arrangement of the fixing member 7, when the fixing bolt 72 is tightened, the fixing bolt 72 abuts against the insulating tube 6, which can fix the insulating tube 6; when the fixing bolt 72 is loosened, the fixing bolt 72 is separated from the insulating tube 6, and at this time, the insulating tube 6 can be rotated.

[0046] Referring to Figure 1 and Figure 4 , a plurality of fixing chutes 74 are formed in the closing plate 23. The fixing chutes 74 penetrate through the outer side wall of the closing plate 23 along their own length directions. The fixing chutes 74 are arranged in one-to-one correspondence with the fixing sliders 71, and the length direction of the fixing slider 71 is arranged along the length direction of the corresponding fixing chute 74. One end of the fixing slider 71 in the length direction is in plug-in fit with the corresponding fixing chute 74, and the fixing slider 71 is slidably connected to the inner side wall of the corresponding fixing chute 74 along its own length direction. The length of the fixing chute 74 is greater than the length of the corresponding fixing slider 71.

[0047] Referring toFigure 1 and Figure 4 , the opening of the fixed sliding groove 74 enables the fixed sliding block 71 to be completely retracted into the corresponding fixed sliding groove 74. Then, when the fixed sliding block 71 extends out of the corresponding fixed sliding groove 74, a fixing bolt 72 can be installed on the fixed sliding block 71 at this time, and thus the fixing of the heat insulation pipe 6 can be realized; when the fixed sliding block 71 is completely retracted into the corresponding fixed sliding groove 74, there is no interference between the fixed sliding block 71 and the heat insulation pipe 6 at this time, which facilitates the disassembly of the heat insulation pipe 6.

[0048] Referring to Figure 1 and Figure 2 , a cooling cavity 62 is provided on the inner side wall of the heat insulation pipe 6, and a first pipe 63 and a second pipe 64 are provided on the heat insulation pipe 6. Both the first pipe 63 and the second pipe 64 are communicated with the cooling cavity 62. Then, cooling water can be injected into the cooling cavity 62 through the first pipe 63, and the cooling water in the cooling cavity 62 can be discharged through the second pipe 64. This can maintain the temperature of the heat insulation pipe 6 through the cooling water when the effect of the heat insulation pipe 6 is poor, and then maintain the temperature of the atomizing nozzle, which can improve the service life of the atomizing nozzle.

[0049] The implementation principle of the embodiment of the present application is as follows: the cooperative setting of the inner lining pipe 4 and the inner lining plate 5 enables the liquid raw material entering the atomizing nozzle to directly contact the inner lining pipe 4 and the inner lining pipe 4, and thus the wear resistance of the atomizing nozzle of the present application can be improved. Since the inner lining pipe 4 and the inner lining plate 5 are replaceable, the inner lining pipe 4 and the inner lining plate 5 can be directly replaced when they are worn out excessively, which can improve the service life of the atomizing nozzle of the present application. The setting of the heat insulation pipe 6 can insulate and cool the atomizing nozzle, improve the heat resistance of the atomizing nozzle of the present application, and thus improve the service life of the atomizing nozzle of the present application.

[0050] The embodiments of the present specific implementation manners are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A wear-resistant and corrosion-resistant composite nozzle rotary atomization device, characterized in that, include: An atomizing rotating disk (1), wherein a main shaft (3) is coaxially arranged on the atomizing rotating disk (1); An atomizing tube (2), wherein a plurality of atomizing spray holes (21) are formed through a side wall of the atomizing tube (2), and the plurality of atomizing spray holes (21) are arranged in sequence and at intervals along the circumference of the atomizing tube (2); the atomizing rotating disk (1) is located at one axial end of the atomizing tube (2), and the atomizing rotating disk (1) is rotatably connected to the atomizing tube (2); the atomizing tube (2) is coaxially sleeved on the outside of the main shaft (3), and the outer wall of the main shaft (3) and the inner wall of the atomizing tube (2) are arranged at intervals; An inner lining tube (4), the atomizing tube (2) being sleeved on the outer side of the inner lining tube (4), the inner lining tube (4) being provided with a plurality of through holes (41), the through holes (41) being arranged in a one-to-one correspondence with the atomizing tubes (2), and the through holes (41) being communicated with the corresponding atomizing tubes (2).

2. The wear-resistant and corrosion-resistant composite nozzle rotary atomization device according to claim 1, wherein, The inner liner tube (4) is detachably connected to the atomization tube (2).

3. The wear-resistant and corrosion-resistant composite nozzle rotary atomization device according to claim 2, characterized in that, The atomizing tube (2) is provided with a closing plate (23) along one end of its axial direction, the closing plate (23) is detachably connected to the atomizing tube (2), a clearance hole (231) is provided on the closing plate (23), the main shaft (3) and the clearance hole (231) are coaxially plugged and matched, and the inner side wall of the clearance hole (231) is spaced apart from the outer side wall of the main shaft (3); A plurality of plug-in columns (42) are arranged on the outer wall of the inner lining tube (4), and a plurality of plug-in grooves (24) are opened on the inner wall of the atomizing tube (2). The length direction of the plug-in grooves (24) is arranged along the axial direction of the atomizing tube (2), and the plug-in grooves (24) penetrate the atomizing tube (2) along their own length direction toward one end of the closing plate (23). The plug-in columns (42) and the plug-in grooves (24) are arranged in a one-to-one correspondence, and the plug-in columns (42) are plugged into and matched with the corresponding plug-in grooves (24).

4. A wear-resistant and corrosion-resistant composite nozzle rotary atomization device according to claim 1, characterized in that, An inner lining disk (5) is provided on the side of the atomizing rotating disk (1) facing the atomizing tube (2), and the inner lining disk (5) is coaxially connected to the atomizing rotating disk (1); The lining tube (4) is sleeved on the outside of the lining disc (5), and the lining disc (5) is rotatably connected to the inner lining of the lining tube (4).

5. The wear-resistant and corrosion-resistant composite nozzle rotary atomization device according to claim 4, characterized in that, The lining disk (5) is detachably connected to the atomizing rotating disk (1).

6. A wear-resistant and corrosion-resistant composite nozzle rotary atomization device according to claim 1, characterized in that, The atomizing tube (2) is sheathed with an insulating tube (6) on its outer side, and a plurality of first holes (61) are provided on the side wall of the insulating tube (6). The first holes (61) are arranged in a one-to-one correspondence with the atomizing spray holes (21), and the first holes (61) are in communication with the corresponding atomizing spray holes (21).

7. A wear-resistant and corrosion-resistant composite nozzle rotary atomization device according to claim 6, characterized in that, The heat insulation tube (6) is detachably connected to the atomization tube (2).

8. A wear-resistant and corrosion-resistant composite nozzle rotary atomization device according to claim 6, characterized in that, The heat insulation tube (6) is rotatably connected to the atomization tube (2).

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