Ceramic tube type spray welding composite atomizing disc

Abstract

This utility model relates to the field of atomizing discs and discloses a ceramic tube-type spray-welded composite atomizing disc, including a lower atomizing disc, an upper atomizing disc on the upper surface of the lower atomizing disc, an mounting assembly on the lower surface of the upper atomizing disc, a flow-guiding and wear-resistant assembly on the inner surface of the lower atomizing disc, and a conical sleeve fixedly connected to the inner wall at the bottom of the lower atomizing disc, the upper surface of the conical sleeve having a connecting hole; the flow-guiding and wear-resistant assembly includes a wear-resistant disc, which is disposed on the inner wall at the bottom of the lower atomizing disc. In this utility model, by installing the wear-resistant disc and spraying an alloy composite layer on the surfaces of the wear-resistant disc and multiple components of the atomizing disc, the alloy composite layer and the ceramic tube have a hardness greater than HRC60. During operation, it can resist the high-speed impact of calcium carbonate particles in lime slurry, reducing wear. Compared with traditional atomizing discs, it significantly extends service life, reduces replacement frequency, and saves maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of atomizing discs, and in particular to a ceramic tube-type spray-welded composite atomizing disc. Background Technology

[0002] The Sigger-type atomizing disc plays a crucial role in liquid atomization on the waste incineration line. Its working mechanism is based on a high-speed rotating physical process, which disperses the liquid into extremely fine droplets through the high-speed rotating atomizing disc, thereby achieving efficient process conversion.

[0003] In current industry applications, the 220mm diameter Sigs-type atomizing disc is widely used. This atomizing disc is normally made of Hastelloy C276. Hastelloy C276 has excellent resistance to acid and alkali corrosion and exhibits outstanding stability in complex chemical environments, providing a basic guarantee for the application of atomizing discs in the desulfurization process of waste incineration flue gas.

[0004] However, this material has significant performance limitations, with its hardness only ranging from HRC30 to 35. This results in poor wear resistance for the atomizing disc. In actual operation, the atomizing disc rotates at high speed, with its outer wall linear velocity reaching over 90 meters per second. In the flue gas desulfurization process, lime slurry is used as the desulfurization liquid. When the atomizing disc rotates at high speed, the lime slurry continuously contacts the surface of the slurry channel of the atomizing disc. Since the slurry contains solid particles such as calcium carbonate, these particles continuously impact the interior of the atomizing disc during high-speed flow, causing severe wear. As the wear intensifies, the internal structure of the atomizing disc is gradually damaged, eventually leading to loss of dynamic balance and failure to function properly, resulting in its scrapping. This not only affects the stability of the waste incineration flue gas desulfurization process but also increases equipment maintenance costs and operational burden.

[0005] To address these issues, a ceramic tubular spray-welded composite atomizing disc is proposed. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a ceramic tube-type spray-welded composite atomizing disc, which aims to improve the problems of rapid scrapping, impact on deacidification process, and increased cost caused by the low hardness and easy wear of the atomizing disc in the prior art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a ceramic tube-shaped spray-welded composite atomizing disc, including a lower atomizing disc, an upper atomizing disc on the upper surface of the lower atomizing disc, an installation component on the lower surface of the upper atomizing disc, a flow-guiding and wear-resistant component on the inner surface of the lower atomizing disc, and a conical sleeve fixedly connected to the inner wall at the bottom of the lower atomizing disc, with a connection hole on the upper surface of the conical sleeve;

[0008] The flow-guiding wear-resistant component includes a wear-resistant disc, which is disposed on the inner wall of the bottom end of the atomizing disc. A circular hole is formed through the outer wall of the wear-resistant disc, and a through hole is formed through the outer wall of the atomizing disc. A ceramic tube is installed on the inner surface of the circular hole.

[0009] As a further description of the above technical solution:

[0010] The mounting assembly includes fixing bolts, which are installed on the inner surface of the upper atomizing disc, and mounting holes are provided on the upper surface of the lower atomizing disc.

[0011] As a further description of the above technical solution:

[0012] The ceramic tube is installed on the inner surface of the through hole.

[0013] As a further description of the above technical solution:

[0014] Both the upper surface of the atomizing disc and the upper surface of the wear-resistant disc have through slots.

[0015] As a further description of the above technical solution:

[0016] The ceramic tubes, round holes, and through holes are arranged in multiple sets, and the multiple sets of ceramic tubes, round holes, and through holes are arranged in a circular array with the center of the lower plate of the atomizing disk as the origin.

[0017] As a further description of the above technical solution:

[0018] The bottom and sides of the atomizing disc, the outer surface of the conical sleeve, and the inner surface of the wear-resistant disc are all coated with an alloy composite layer.

[0019] As a further description of the above technical solution:

[0020] The fixing bolt passes through and is threaded into the inner wall of the mounting hole.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by installing a wear-resistant disc and spraying an alloy composite layer on the surface of multiple components of the wear-resistant disc and the atomizing disc, the alloy composite layer and the ceramic tube have a hardness greater than HRC60. During operation, they can resist the high-speed impact of calcium carbonate particles in lime slurry, reduce wear, and significantly extend service life, reduce replacement frequency, and save maintenance costs compared with traditional atomizing discs.

[0023] 2. In this utility model, with the cooperation of the installation components, it is easy to quickly assemble and disassemble the upper and lower atomizing discs and the wear-resistant disc, and it is convenient to replace the parts individually after they are worn, thus reducing the cost of replacing damaged parts. Attached Figure Description

[0024] Figure 1 This is a front view of the three-dimensional structure of the overall device in this utility model;

[0025] Figure 2 This is a three-dimensional structural breakdown diagram of the overall device in this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the lower and upper atomizing discs in this utility model.

[0027] Legend:

[0028] 1. Lower atomizing disc; 2. Conical sleeve; 3. Connecting hole; 4. Upper atomizing disc; 51. Ceramic tube; 52. Wear-resistant disc; 53. Round hole; 54. Through hole; 61. Fixing bolt; 62. Mounting hole. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figures 1-2 This utility model provides an embodiment of a ceramic tube-type spray-welded composite atomizing disc, including a lower atomizing disc 1, an upper atomizing disc 4 on the upper surface of the lower atomizing disc 1, the lower atomizing disc 1 and the upper atomizing disc 4 being of compatible models, and when installed, the centers of the lower atomizing disc 1 and the upper atomizing disc 4 are located on the same axis. An installation component is provided on the lower surface of the upper atomizing disc 4, which facilitates the assembly of the atomizing discs and also allows for the disassembly of the components within the atomizing disc, facilitating the cleaning of the internal parts of the atomizing disc. The components can be replaced separately. The inner surface of the lower atomizing plate 1 is equipped with a flow-guiding and wear-resistant component. The flow-guiding and wear-resistant component can enhance the strength and wear resistance of the device, thereby ensuring the service life of the device. A conical sleeve 2 is fixedly connected to the inner wall at the bottom of the lower atomizing plate 1. The conical sleeve 2 is located in the middle part of the lower atomizing plate 1. A connecting hole 3 is opened on the upper surface of the conical sleeve 2. The connecting hole 3 facilitates the installation of the conical sleeve 2 on the atomizer. After the atomizer is started, it can drive the conical sleeve 2, the lower atomizing plate 1 and the upper atomizing plate 4 to rotate synchronously and quickly.

[0031] Reference Figures 1-3The flow guide wear-resistant component includes a wear-resistant disc 52, which is disposed on the inner wall of the bottom end of the atomizing disc lower plate 1. The lower surface of the wear-resistant disc 52 is in contact with the inner wall of the bottom end of the atomizing disc lower plate 1. When the atomizing disc lower plate 1 and the atomizing disc upper plate 4 are fixed together, the wear-resistant disc 52 can be kept stable. A circular hole 53 is provided through the outer wall of the wear-resistant disc 52, and a through hole 54 is provided through the outer wall of the atomizing disc lower plate 1. The circular hole 53 and the through hole 54 fit together. A ceramic tube 51 is installed on the inner surface of the circular hole 53. The ceramic tube 51 is customized and has strong wear resistance.

[0032] Reference Figures 1-3 The ceramic tube 51 is installed on the inner surface of the through hole 54. The installation process of the ceramic tube 51 is existing technology in this field and can be implemented by those skilled in the art, so it will not be described in detail. A through groove is provided at the center of the upper surface of both the atomizing disc 4 and the wear-resistant disc 52. The conical sleeve 2 penetrates the through grooves on the upper atomizing disc 4 and the wear-resistant disc 52. Multiple sets of ceramic tubes 51, round holes 53, and through holes 54 are provided, arranged in a circular array with the center of the lower atomizing disc 1 as the origin. Externally... The slurry to be atomized is added through the groove on the upper plate 4 of the atomizing disk, and under the action of centrifugal force brought about by high-speed rotation, it is finally sprayed out in a mist from the ceramic tube 51. The bottom and side surfaces of the upper plate 4 of the atomizing disk, the outer surface of the conical sleeve 2, and the inner surface of the wear-resistant disk 52 are all coated with an alloy composite layer. The hardness of the alloy composite layer and the ceramic tube 51 is greater than HRC60. The alloy composite layer can be made of various materials (such as chromium carbide alloy composite layer, tungsten cobalt hard alloy composite layer, Fe-based alloy laser cladding layer, nickel-based alloy composite layer, etc.).

[0033] Reference Figures 1-3 The mounting components include fixing bolts 61, which are installed on the inner surface of the upper atomizing disc 4. The upper surface of the lower atomizing disc 1 has mounting holes 62. The fixing bolts 61 pass through and are threaded into the inner wall of the mounting holes 62, which can fix the upper atomizing disc 4 and the lower atomizing disc 1 together, thereby ensuring the stability of the wear-resistant disc 52.

[0034] Working principle: The conical sleeve 2 on the inner wall of the bottom of the lower atomizing disc 1 is installed on the atomizer through the connecting hole 3 opened above it. After the atomizer is started, it generates power to drive the conical sleeve 2, which in turn causes the lower atomizing disc 1 and the upper atomizing disc 4 to rotate synchronously and rapidly. The lime slurry that needs to be atomized is added through the through groove opened at the center of the upper surface of the upper atomizing disc 4. At this time, the atomizing disc rotates at high speed under the drive of the atomizer, generating a strong centrifugal force. Under the action of centrifugal force, the slurry flows down along the through groove of the upper atomizing disc 4 and enters the guide wear-resistant component. Under the action of centrifugal force, the slurry enters the ceramic tube 51 and is dispersed into a mist during the process of passing through the ceramic tube 51 at high speed and sprayed out from the ceramic tube 51.

[0035] The bottom and sides of the atomizing disc 4, the outer surface of the conical sleeve 2, and the inner surface of the wear-resistant disc 52 are all coated with an alloy composite layer. The ceramic tube 51 and the alloy composite layer have a hardness greater than HRC60. During the atomization process, when solid particles such as calcium carbonate in the lime slurry impact the inside of the atomizing disc, the ceramic tube 51 and the alloy composite layer, with their high hardness, can effectively resist the impact and wear of the particles, reduce damage to the overall structure of the atomizing disc, thereby extending the service life of the atomizing disc and ensuring stable operation of the atomizing disc in high-speed rotation and harsh working environments.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Ceramic tubular type spray welding composite atomizer disc comprising an atomizer disc lower disc (1), characterized in that: The upper surface of the atomizing disc lower plate (1) is provided with an atomizing disc upper plate (4), the lower surface of the atomizing disc upper plate (4) is provided with an installation component, the inner surface of the atomizing disc lower plate (1) is provided with a flow guiding and wear-resistant component, and a conical sleeve (2) is fixedly connected to the inner wall at the bottom of the atomizing disc lower plate (1). The upper surface of the conical sleeve (2) is provided with a connection hole (3). The flow guide wear-resistant component includes a wear-resistant disc (52), which is disposed on the inner wall of the bottom end of the atomizing disc lower plate (1). A circular hole (53) is provided through the outer wall of the wear-resistant disc (52), and a through hole (54) is provided through the outer wall of the atomizing disc lower plate (1). A ceramic tube (51) is installed on the inner surface of the circular hole (53).

2. The ceramic tube-type spray welding composite atomizer disc of claim 1, wherein: The mounting assembly includes a fixing bolt (61) which is mounted on the inner surface of the upper atomizing disc (4), and a mounting hole (62) is provided on the upper surface of the lower atomizing disc (1).

3. The ceramic tube-type plasma spray composite atomizer disk of claim 1 wherein: The ceramic tube (51) is installed on the inner surface of the through hole (54).

4. The ceramic tube-type plasma spray composite atomizer disk of claim 1 wherein: Both the upper surface of the atomizing disc (4) and the upper surface of the wear-resistant disc (52) are provided with through slots.

5. The ceramic tube-type plasma spray composite atomizer disk of claim 1 wherein: The ceramic tube (51), round hole (53), and through hole (54) are provided in multiple sets, and the multiple sets of ceramic tube (51), round hole (53), and through hole (54) are arranged in a circular array with the center of the atomizing disk lower plate (1) as the origin.

6. The ceramic tube-type plasma spray composite atomizer disk of claim 1 wherein: The bottom and side surfaces of the atomizing disc (4), the outer surface of the conical sleeve (2), and the inner surface of the wear-resistant disc (52) are all coated with an alloy composite layer.

7. The ceramic tube-type plasma spray composite atomizer disk of claim 2, wherein: The fixing bolt (61) passes through and is threaded into the inner wall of the mounting hole (62).

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