Titanium alloy spray welding composite atomizing disc

Abstract

The utility model relates to the field of atomizing discs, and discloses a titanium alloy spray welding composite atomizing disc which comprises an atomizing disc body, a contact assembly and a connecting assembly are arranged on the inner side of the atomizing disc body, and the middle of the upper side of the atomizing disc body is sunken. The contact assembly comprises a customized ceramic tube fixedly connected to the inner wall of the concave position of the atomizing disc body, an atomizing disc spray welding wear-resisting disc is arranged at the concave position of the atomizing disc body, and a butt joint groove is formed in the outer side of the atomizing disc spray welding wear-resisting disc in a penetrating mode. According to the atomizing disc, the atomizing disc spray welding wear-resisting disc and the atomizing disc conical sleeve spray welding composite block are additionally arranged in the atomizing disc, the positions, making contact with slurry, of an atomizing disc slurry channel are the surfaces of two parts, the surfaces of the two parts are each coated with a spray welding alloy composite layer, the hardness of the spray welding alloy composite layers is larger than HRC60, and the impact wear resistance of the composite block is improved; therefore, the impact and wear resistance of the interior of the atomizing disc is improved, and the service life of the atomizing disc is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of atomizing discs, and more particularly to a titanium alloy spray-welded composite atomizing disc. Background Technology

[0002] Currently, the Martin-type atomizing discs used in the domestic waste incineration industry are made of TC4 titanium alloy, which has strong acid and alkali resistance but low hardness (approximately HRC30-38) and low impact and wear resistance.

[0003] When used for flue gas deacidification, the lime slurry used for deacidification comes into contact with the slurry channel surface of the atomizing disc. The atomizing disc is in a high-speed rotating state, and particles such as calcium carbonate in the slurry impact and wear the atomizing disc, causing it to wear out rapidly and have a short service life. In order to improve the service life of the atomizing disc, various ceramic coatings are generally sprayed. However, the physical bonding of the sprayed coating is prone to peeling off, and the service life of the atomizing disc is not significantly improved. Therefore, a titanium alloy spray-welded composite atomizing disc is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a titanium alloy spray-welded composite atomizing disc, which aims to improve the problem in the prior art that "the atomizing disc has a short service life and the spray coating is prone to peeling off due to physical bonding, resulting in no significant improvement in the service life of the atomizing disc".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a titanium alloy spray-welded composite atomizing disc, including an atomizing disc body, wherein a contact component and a connecting component are provided on the inner side of the atomizing disc body, and the upper middle part of the atomizing disc body is recessed.

[0006] The contact component includes a custom ceramic tube fixedly connected to the inner wall of the recessed part of the atomizing disc body. The recessed part of the atomizing disc body is provided with an atomizing disc spray-welded wear-resistant disc. A connecting groove is opened through the outer side of the atomizing disc spray-welded wear-resistant disc. The middle part of the atomizing disc spray-welded wear-resistant disc is hollow, and an atomizing disc conical sleeve spray-welded composite block is provided in the hollow part. An atomizing disc cover plate is provided on the upper part of the atomizing disc body near the atomizing disc spray-welded wear-resistant disc. Both the atomizing disc spray-welded wear-resistant disc and the atomizing disc conical sleeve spray-welded composite block are coated with a spray-welded alloy composite layer.

[0007] As a further description of the above technical solution:

[0008] The connecting assembly includes a bolt, the lower part of which is disposed on the inner wall of the atomizing disc cover plate and threadedly connected to the inner wall of the atomizing disc body. The lower part of the atomizing disc cover plate contacts the upper part of the atomizing disc spray-welded wear-resistant disc, and the middle part of the atomizing disc cover plate is hollow. The atomizing disc conical sleeve spray-welded composite block is snapped into the middle part of the atomizing disc cover plate.

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

[0010] The connecting assembly also includes a second bolt, which is disposed on the inner wall of the atomizing disc body. The upper part of the second bolt is threadedly connected to the lower inner wall of the conical sleeve spray-welded composite block of the atomizing disc. The middle part of the atomizing disc body is hollow, and the lower part of the conical sleeve spray-welded composite block of the atomizing disc is inserted and snapped into the middle part of the atomizing disc body.

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

[0012] The inner diameter of the docking groove matches the outer diameter of the custom ceramic tube.

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

[0014] The cross-section of the atomizing disc spray-welded wear-resistant disc is set in a U shape.

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

[0016] Multiple sets of bolt one and bolt two are provided, and the multiple sets of bolt one and bolt two are evenly arranged around the center point of the atomizing disc body.

[0017] This utility model has the following beneficial effects:

[0018] 1. In this utility model, by adding a spray-welded wear-resistant disc and a spray-welded composite block of atomizing disc conical sleeve inside the atomizing disc, the contact area between the atomizing disc slurry channel and the slurry is the surface of the two components. Both surfaces are sprayed with a spray-welded alloy composite layer with a hardness greater than HRC60, which increases the impact and wear resistance of the composite block. Therefore, this utility model improves the impact and wear resistance of the atomizing disc and extends the service life of the atomizing disc.

[0019] 2. In this utility model, both the atomizing disc wear-resistant disc and the atomizing disc conical sleeve composite block are detachable and independent parts. After wear, new parts can be directly replaced, thus effectively avoiding the need to replace the entire titanium alloy atomizing disc. Therefore, it can be repaired and reused multiple times, saving costs to a great extent. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0021] Figure 2 This is a three-dimensional structural diagram of the disassembled integral device in this utility model;

[0022] Figure 3 This is a bottom-view three-dimensional structural diagram of the overall device in this utility model.

[0023] Legend:

[0024] 1. Atomizing disc body; 2. Atomizing disc cover plate; 3. Bolt 1; 4. Atomizing disc spray-welded wear-resistant disc; 5. Atomizing disc conical sleeve spray-welded composite block; 6. Custom ceramic tube; 7. Bolt 2; 8. Butt joint groove; 9. Contact assembly; 10. Connecting assembly. Detailed Implementation

[0025] 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.

[0026] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a titanium alloy spray-welded composite atomizing disc, comprising an atomizing disc body 1, which serves as the basic support structure for the entire atomizing disc. Made of acid and alkali resistant steel, it provides an installation carrier for other components. The inner wall is provided with threads that mate with bolts 3, connecting the various components to ensure the structural integrity of the entire atomizing disc. A contact component 9 and a connecting component 10 are provided on the inner side of the atomizing disc body 1. The upper center of the atomizing disc body 1 is recessed to accommodate the spray-welded wear-resistant disc 4 and the spray-welded conical sleeve composite block 5. The contact component 9 includes a custom ceramic tube 6 fixedly connected to the inner wall of the recess in the atomizing disc body 1. The atomizing disc body 1 has a recessed area with a spray-welded wear-resistant disc 4. The cross-section of the spray-welded wear-resistant disc 4 is U-shaped, which increases the contact area with the slurry and also improves its structural strength. At the same time, the surface spray-welded alloy composite layer has a hardness greater than HRC60, which has strong impact and wear resistance. A through groove 8 is provided on the outer side of the spray-welded wear-resistant disc 4. The inner diameter of the through groove 8 matches the outer diameter of the custom ceramic tube 6. The custom ceramic tube 6 is installed in conjunction with the through groove 8. Due to the good wear resistance and corrosion resistance of ceramic materials, the custom ceramic tube 6 can further enhance the wear resistance of the atomizing disc in the part in contact with the slurry.

[0027] Reference Figure 1 - Figure 3The atomizing disc spray-welded wear-resistant disc 4 has a hollow center, and a conical sleeve spray-welded composite block 5 is installed in the hollow center. It is firmly installed in the atomizing disc by multiple sets of bolts 7. During operation, it and the atomizing disc spray-welded wear-resistant disc 4 together form the surface of the slurry channel in contact with the slurry, effectively resisting the impact and wear of particles such as calcium carbonate in the slurry. At the same time, the surface spray-welded alloy composite layer has a hardness greater than HRC60, which has a strong impact and wear resistance, improving the impact and wear resistance of the atomizing disc. The atomizing disc body 1 is provided with an atomizing disc cover plate 2 near the upper part of the atomizing disc spray-welded wear-resistant disc 4. It serves as the upper cover of the atomizing disc assembly and protects the internal components. It is connected to the atomizing disc body 1 by bolts 3, pressing and fixing the atomizing disc spray-welded wear-resistant disc 4 onto the atomizing disc body 1 to ensure that all components are tightly connected and to prevent displacement or loosening during high-speed rotation.

[0028] Reference Figure 1 - Figure 3 The connecting component 10 includes bolt 3. The lower part of bolt 3 is located on the inner wall of the atomizing disc cover plate 2, and the lower part of bolt 3 is threaded to the inner wall of the atomizing disc body 1. The lower part of the atomizing disc cover plate 2 contacts the upper part of the atomizing disc spray-welded wear-resistant disc 4, which serves to connect the atomizing disc cover plate 2 and the atomizing disc body 1, so that the atomizing disc cover plate 2 can firmly press the atomizing disc spray-welded wear-resistant disc 4. At the same time, through bolt 3, the atomizing disc spray-welded wear-resistant disc 4 can be directly replaced after wear, avoiding the need to replace the entire titanium alloy atomizing disc. Therefore, it can be repaired and reused multiple times, saving costs to a great extent. In addition, the middle part of the atomizing disc cover plate 2 is hollow, and the atomizing disc conical sleeve spray-welded composite block 5 penetrates through the middle part of the atomizing disc cover plate 2. The hollow middle part provides an installation position for the atomizing disc conical sleeve spray-welded composite block 5.

[0029] Reference Figure 1 - Figure 3 The connecting component 10 also includes bolt 2 7, which is located on the inner wall of the atomizing disc body 1. The upper part of bolt 2 7 is threadedly connected to the lower inner wall of the atomizing disc conical sleeve spray-welded composite block 5, serving to connect the atomizing disc conical sleeve spray-welded composite block 5 and the atomizing disc body 1. This allows the atomizing disc conical sleeve spray-welded composite block 5 to firmly press against the atomizing disc spray-welded wear-resistant disc 4. Furthermore, through bolt 2 7, the atomizing disc conical sleeve spray-welded composite block 5 can be directly replaced after wear, avoiding the need to replace the entire titanium alloy atomizing disc. Therefore, it can be used multiple times. The atomizing disc body 1 is hollow in the middle, and the lower part of the atomizing disc conical sleeve spray-welded composite block 5 is inserted and snapped into the middle of the atomizing disc body 1. The surfaces of the atomizing disc spray-welded wear-resistant disc 4 and the atomizing disc conical sleeve spray-welded composite block 5 are both sprayed with a spray-welded alloy composite layer with a hardness greater than HRC60, which has a strong impact and wear resistance and extends the life of the atomizing disc. There are multiple sets of bolts 1 3 and bolts 2 7, which are evenly arranged around the center point of the atomizing disc body 1.

[0030] Working principle: In use, first assemble the atomizing disc, aligning the mating groove 8 on the outer side of the atomizing disc wear-resistant plate 4 with the custom ceramic tube 6 on the atomizing disc body 1. Install the atomizing disc wear-resistant plate 4 in the central recess of the atomizing disc body 1. The atomizing disc conical sleeve sprayed composite block 5, located in the hollow part of the atomizing disc wear-resistant plate 4, is fixed to the atomizing disc body 1 by bolt 2 7, simultaneously pressing and fixing the atomizing disc wear-resistant plate 4. Then, connect the atomizing disc cover plate 2 to the atomizing disc body 1 by bolt 1 3, pressing the atomizing disc wear-resistant plate 4 tightly to prevent displacement or loosening of the components during high-speed rotation.

[0031] During the deacidification process of waste incineration flue gas, the deacidification liquid lime slurry is transported through the slurry channel of the atomizing disc and comes into contact with the surface of the atomizing disc spray-welded wear-resistant disc 4 and the atomizing disc conical sleeve spray-welded composite block 5. The hardness of the spray-welded alloy composite layer on the surface of these two components is greater than HRC60, which has strong impact and wear resistance and can effectively resist the impact of particles such as calcium carbonate in the slurry.

[0032] After long-term use, the atomizing disc wear-resistant plate 4 and the atomizing disc conical sleeve composite block 5, as vulnerable parts, may wear out. Since they are detachable independent parts, during maintenance, only bolt 1 3 and bolt 2 7 need to be unscrewed to replace the worn atomizing disc wear-resistant plate 4 and the atomizing disc conical sleeve composite block 5 respectively, without having to replace the entire titanium alloy atomizing disc, thus reducing maintenance costs.

[0033] 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. A spray welding composite atomizing disc of titanium alloy, comprising an atomizing disc body (1), characterized in that: The inside of the atomizing disc body (1) is provided with a contact assembly (9) and a connecting assembly (10), and the middle part of the upper side of the atomizing disc body (1) is concave; The contact assembly (9) comprises a customized ceramic tube (6) fixedly connected to the inner wall of the concave part of the atomizing disc body (1), the concave part of the atomizing disc body (1) is provided with an atomizing disc spray-welded wear-resistant disc (4), the outside of the atomizing disc spray-welded wear-resistant disc (4) is provided with a butt joint groove (8), the middle part of the atomizing disc spray-welded wear-resistant disc (4) is hollow, and the hollow part is provided with an atomizing disc conical sleeve spray-welded composite block (5), the upper part of the atomizing disc body (1) close to the atomizing disc spray-welded wear-resistant disc (4) is provided with an atomizing disc cover plate (2), and the surfaces of the atomizing disc spray-welded wear-resistant disc (4) and the atomizing disc conical sleeve spray-welded composite block (5) are sprayed with a spray-welded alloy composite layer.

2. The titanium alloy spray weld composite atomization disc of claim 1, wherein: The connecting assembly (10) comprises a bolt one (3), the lower part of the bolt one (3) is arranged on the inner wall of the atomizing disc cover plate (2), the lower part of the bolt one (3) is threadedly connected to the inner wall of the atomizing disc body (1), the lower part of the atomizing disc cover plate (2) is in contact with the upper part of the atomizing disc spray-welded wear-resistant disc (4), and the middle part of the atomizing disc cover plate (2) is hollow, and the atomizing disc conical sleeve spray-welded composite block (5) is clamped in the middle part of the atomizing disc cover plate (2).

3. The titanium alloy spray weld composite atomization disc of claim 1 wherein: The connecting assembly (10) further comprises a bolt two (7), the bolt two (7) is arranged on the inner wall of the atomizing disc body (1), the upper part of the bolt two (7) is threadedly connected to the inner wall of the lower part of the atomizing disc conical sleeve spray-welded composite block (5), the middle part of the atomizing disc body (1) is hollow, and the lower part of the atomizing disc conical sleeve spray-welded composite block (5) is clamped in the middle part of the atomizing disc body (1).

4. The titanium alloy spray weld composite atomization disc of claim 1 wherein: The inner diameter of the butt joint groove (8) matches the outer diameter of the customized ceramic tube (6).

5. The titanium alloy spray weld composite atomization disk of claim 1, wherein: The cross section of the atomizing disc spray-welded wear-resistant disc (4) is U-shaped.

6. The titanium alloy spray weld composite atomization disk of claim 2, wherein: The bolt one (3) and the bolt two (7) are provided in multiple groups, and the multiple groups of the bolt one (3) and the bolt two (7) are evenly arranged at the center point of the atomizing disc body (1).

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