Spraying disc

Abstract

The utility model provides a spray disc, which relates to the technical field of acid regeneration and comprises an inner disc, an outer ring and a first connecting structure, the outer ring is detachably connected to the periphery of the inner disc through the first connecting structure, and a plurality of mounting holes for mounting nozzles are formed in the inner disc. The spraying disc is divided into the inner disc and the outer ring which are detachable through the first connecting structure, so that when the spraying disc is damaged due to collision, only the damaged outer ring needs to be detached from the inner disc, then the normal and intact outer ring is replaced, the inner disc does not need to be replaced, the replacement cost of quick-wear parts is effectively saved, and the economic loss is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of acid regeneration, in particular to a spray disc. Background Art

[0002] The spray roasting acid regeneration process uses a waste acid supply pump to pressurize the acid to 4.5-5 bar. The acid is then atomized through a supply pipeline and a spray gun nozzle on the furnace top before being sprayed into the roasting furnace. FeCl2 in the waste acid decomposes at 600-700°C in an oxygen and water vapor environment, producing Fe2O3 and HCl. The HCl is absorbed in an absorption tower to produce 18% hydrochloric acid, and the Fe2O3 is discharged from the furnace bottom for recovery. The reaction equation is: 4FeCl2 + 4H2O + O2 = 2Fe2O3 + 8HCl. The atomization quality of the spray gun nozzle has a direct impact on the quality of the Fe2O3 and is a key process component.

[0003] Among the existing patent technologies, those in similar or similar fields include Taiwan Patent TWM632494U, which was authorized and announced on September 21, 2022.

[0004] However, existing spray guns and spray discs are typically made of niobium or titanium-palladium alloys, which are expensive, costing tens of thousands of yuan per set, with each spray disc costing around 6,000 yuan. The external threads of the spray discs are easily damaged by prolonged use or collisions, making them consumable parts. Once damaged, they must be scrapped, resulting in significant financial losses. Utility Model Content

[0005] The purpose of the utility model is to provide a spray disc that can effectively save the replacement cost after the spray disc is damaged and reduce economic losses;

[0006] The utility model provides a spray disc, comprising an inner disc, an outer ring and a first connecting structure. The outer ring is detachably connected to the outer periphery of the inner disc through the first connecting structure. The inner disc is provided with a plurality of mounting holes for mounting nozzles.

[0007] Furthermore, the first connection structure includes a first threaded portion provided on the outer circumference of the inner disk, and a second threaded portion provided on the inner circumference of the outer ring, and the first threaded portion matches the second threaded portion.

[0008] Furthermore, the first connection structure includes a latch member, a first positioning structure is provided on the inner disk, and a second positioning structure is provided on the outer ring, and the latch member can be removably inserted into the first positioning structure and the second positioning structure.

[0009] Furthermore, the first positioning structure includes a first positioning hole opened on the outer circumference of the inner disk.

[0010] Furthermore, the second positioning structure includes a second positioning hole radially passing through the outer ring.

[0011] Furthermore, the latch member includes a screw.

[0012] Furthermore, the outer ring is provided with a second connecting structure for connecting to the spray gun.

[0013] Furthermore, the second connection structure includes a third threaded portion provided on the outer circumference of the outer ring.

[0014] The technical solution of the present invention divides the spray disc into a detachable inner disc and outer ring through a first connecting structure. Therefore, when the spray disc is damaged by collision, it is only necessary to remove the damaged outer ring from the inner disc and then replace it with a normal and intact outer ring without replacing the inner disc, thereby effectively saving the replacement cost of wearing parts and reducing economic losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 Exploded view of;

[0018] Figure 3 This is a structural schematic diagram from another perspective of the present invention;

[0019] Figure 4 For this utility model Figure 3 Exploded view of;

[0020] Figure 5 This is an internal cross-sectional view of the present utility model;

[0021] Figure 6 For this utility model Figure 5 A magnified view of point A;

[0022] Figure 7 This is a schematic diagram of the use of the connecting spray gun of the utility model;

[0023] Figure 8 For this utility model Figure 7 Enlarged view of point B;

[0024] Description of reference numerals:

[0025] 1-inner plate; 101-mounting hole;

[0026] 2-outer ring; 201-third threaded portion;

[0027] 3-first connecting structure; 301-first threaded portion; 302-second threaded portion; 303-latch member; 304-first positioning hole; 305-second positioning hole;

[0028] 4-spray gun; 401-spray gun connecting flange; 402-spray gun tube; 403-connecting pipe; 404-spray gun base; 405-sealing ring. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0032] Example 1

[0033] like Figures 1-8 As shown, the utility model provides a spray disc, including an inner disc 1, an outer ring 2 and a first connecting structure 3. The outer ring 2 is detachably connected to the outer periphery of the inner disc 1 through the first connecting structure 3. The inner disc 1 is provided with a plurality of mounting holes 101 for mounting nozzles.

[0034] Specifically, in this embodiment, the inner disk 1 is a disc-shaped structural member made of niobium or titanium-palladium alloy. It has a plurality of mounting holes 101 arranged in an array along its circumference. Ceramic nozzles are installed within these holes. The number of nozzles installed is determined by the amount of waste acid to be treated. The outer ring 2 is an annular structural member that completely covers the outer circumference of the inner disk 1 and is detachably connected to the inner disk 1 via a first connecting structure 3.

[0035] The first connection structure 3 can be specifically implemented as a detachable connection by using a threaded portion in Example 2, or other structures such as snaps, screws, etc. that can implement a detachable connection.

[0036] Example 2

[0037] The first connection structure 3 includes a first threaded portion 301 provided on the outer circumference of the inner disk 1 and a second threaded portion 302 provided on the inner circumference of the outer ring 2 . The first threaded portion 301 matches the second threaded portion 302 .

[0038] Specifically, the first and second threaded portions 301, 302 are mating M120x1.5 threaded surfaces. The inner disc 1 has a stepped axial cross-section: the outer periphery adjacent to the spray gun 4 protrudes radially relative to the side away from the spray gun 4, forming a step. The first threaded portion 301 is formed on this protruding surface. The second threaded portion 302 does not completely occupy the inner periphery of the outer ring 2, but rather partially extends beyond it. When the outer ring 2 and inner disc 1 are threadedly connected, the end of the outer ring 2 adjacent to the spray gun 4 protrudes beyond the end of the inner disc 1 adjacent to the spray gun 4.

[0039] When the outer ring 2 is separated, it is only necessary to twist the outer ring 2 to separate the outer ring 2 from the inner disk 1 .

[0040] Example 3

[0041] The first connection structure 3 includes a latch 303. The inner disk 1 is provided with a first positioning structure, and the outer ring 2 is provided with a second positioning structure. The latch 303 can be removably inserted into the first and second positioning structures. The first positioning structure includes a first positioning hole 304 defined on the outer circumference of the inner disk 1. The second positioning structure includes a second positioning hole 305 radially extending through the outer ring 2. The latch 303 comprises a screw.

[0042] Specifically, two first positioning holes 304 are symmetrically located at opposite ends of the inner disk 1's outer circumference, forming blind holes. Opposite to the first positioning holes 304 on the inner disk 1, two second positioning holes 305 are formed on the outer ring 2, extending through the inner disk 1. A latch 303 is inserted into the first positioning holes 304, partially leaving the second positioning holes 305. This precisely positions the inner disk 1 and outer ring 2 relative to each other.

[0043] If two M6 positioning screws are used as the latch member 303 , threads may be provided on the inner wall of the first positioning hole 304 , or the first positioning hole 304 and the second positioning hole 305 , so that the positioning screws are inserted and fixed by thread engagement.

[0044] Example 4

[0045] The outer ring 2 is provided with a second connection structure for connecting with the spray gun 4. The second connection structure includes a third threaded portion 201 provided on the outer periphery of the outer ring 2.

[0046] Specifically, the spray gun 4 includes a spray gun tube 402 and a connecting tube 403. The connecting tube 403 is connected to the front end of the spray gun tube 402. The rear end of the spray gun tube 402 is provided with a spray gun connecting flange 401. The front end of the connecting tube 403 is provided with a spray gun base 404. The spray gun base 404 is an annular cover-like structure. The outer edge of the spray gun base extends forward along the axis to form the outer edge of the cover, and the outer edge is connected to the third threaded portion 201 on the outer periphery of the outer ring 2 by a threaded engagement, thereby realizing the connection between the inner disk 1 and the spray gun 4.

[0047] In addition, a sealing ring 405 is provided on the outer edge of the space between the spray gun base 404 and the outer ring 2 to prevent leakage.

[0048] Example 5

[0049] A method for replacing a spray disc includes the following steps: S1, when the outer ring 2 on the inner disc 1 is damaged, removing the damaged outer ring 2; S2, replacing the inner disc 1 with the damaged outer ring 2 with a normal outer ring 2.

[0050] Specifically, if the outer ring 2 is damaged (for example, if there is an impact-damaged surface on the outer periphery or the third threaded portion 201 on the outer periphery is damaged by impact), simply remove the set screws, replace the damaged outer ring 2, and then replace it with a new, working outer ring 2. The inner disc 1 can then be reused. Due to its light weight and simple production, the outer ring 2 costs much less than the entire spray disc, costing approximately 500 yuan each, less than 10% of the original disc's value, significantly saving costs. Furthermore, previously scrapped spray disc parts can be repaired and reused.

[0051] Example 6

[0052] The inner disc 1 and the outer ring 2 are made of different materials.

[0053] Specifically, the materials of the inner disk 1 and outer ring 2 components can be different. For example, the inner disk 1 component is made of niobium, and the outer ring 2 component is made of titanium-palladium alloy, so that the inner disk 1 has better working performance but lower damage resistance and a higher price, while the outer ring 2 has high damage resistance and a lower price. Therefore, compared with using the same materials, the method of this embodiment 6 has better working performance at the same cost, the outer ring 2 is less likely to be damaged, the cost of replacing the outer ring 2 after damage is lower, and it is convenient for spare parts repair.

[0054] The usage and principle of the present invention are described in detail in Example 5 and Example 6, which will not be described in detail.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A spray plate, characterized in that: The nozzle assembly comprises an inner disk, an outer ring and a first connecting structure, wherein the outer ring is detachably connected to the outer periphery of the inner disk via the first connecting structure, and the inner disk is provided with a plurality of mounting holes for mounting nozzles; The first connection structure includes a first threaded portion provided on the outer circumference of the inner disk and a second threaded portion provided on the inner circumference of the outer ring, wherein the first threaded portion matches the second threaded portion; The first connection structure includes a latch member, a first positioning structure is provided on the inner disk, and a second positioning structure is provided on the outer ring. The latch member can be removably inserted into the first positioning structure and the second positioning structure.

2. The spray plate according to claim 1, characterized in that The first positioning structure includes a first positioning hole opened on the outer circumference of the inner disk.

3. The spray plate according to claim 1, characterized in that The second positioning structure includes a second positioning hole radially passing through the outer ring.

4. The spray plate according to claim 1, characterized in that The latch member includes a screw.

5. The spray plate according to claim 1, characterized in that The outer ring is provided with a second connecting structure for connecting with the spray gun.

6. The spray plate according to claim 5, characterized in that The second connection structure includes a third threaded portion disposed on the outer circumference of the outer ring.

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