A rinsing device for cleaning residual abrasive from the surface of a strip

Abstract

The utility model discloses a kind of for cleaning plate strip surface residual abrasive flushing device, including the first water flushing component for loosening plate strip surface abrasive, the abrasive baffle for making plate strip surface water flow produce backflow and drive abrasive to be in suspended state, and the second water flushing component for flushing suspended abrasive away from plate strip surface, which are sequentially and interval arranged along plate strip conveying direction, the abrasive baffle is non-contact with plate strip surface setting.The utility model is through the synergic effect of first water flushing component, abrasive baffle and second water flushing component, first weaken the binding force of abrasive and plate strip surface, and make abrasive to be in suspended state, so that abrasive can be easily flushed away from plate strip surface, cleaning effect is good, flushing water consumption is less, and abrasive baffle does not directly contact with plate strip, avoid the problem that traditional scraper is easily worn, poor to plate shape adaptability and lead to not clean, while eliminate the risk of plate surface scratch caused by abrasive clamping.

Description

Technical Field

[0001] This utility model belongs to the field of metal surface treatment, and in particular relates to a residual abrasive washing device. Background Technology

[0002] When using high-pressure abrasive water jet or wet shot blasting to clean the oxide scale on the surface of steel plates or strips, wide-specification plates and strips (width not less than 1200mm) are usually horizontally conveyed by roller conveyors or push-pull methods. During the cleaning process, abrasive splashes inside the box, inevitably leaving a large amount of abrasive and oxide scale and other debris on the upper and lower surfaces of the plate and strip, with the accumulation of residue on the upper surface being particularly noticeable.

[0003] Existing cleaning methods for residual abrasives and other debris on the surface of steel strips mainly fall into two categories: one is to install multiple water spray nozzles on the water pipe for rinsing, and the other is to use a contact scraper for removal. The former suffers from poor rinsing effect due to the high density and strong adhesion of abrasives and oxide scale. Even with multiple rows of water pipes, uneven distribution and localized accumulation of abrasives on the strip surface can lead to incomplete rinsing, resulting in abrasives being carried out of the cleaning chamber and wasted. The latter method, on the other hand, addresses the issue of small abrasive particles that adhere tightly to the strip due to the surface tension of water. To achieve a cleaning effect, the scraper must be in close contact with the strip surface. This not only accelerates scraper wear but also, in cases of lateral unevenness in the strip shape, can lead to incomplete removal. Furthermore, if abrasives enter between the scraper and the strip, they can scratch the strip surface under pressure, affecting the quality of the finished product. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the deficiencies and defects mentioned in the background art above, and to provide a rinsing device for cleaning residual abrasive on the surface of sheet and strip materials that has a good cleaning effect and does not require contact with the sheet and strip materials to avoid wear.

[0005] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is as follows: A flushing device for cleaning residual abrasive from the surface of sheet and strip materials includes a first flushing component arranged at intervals along the conveying direction of the sheet and strip material to loosen the abrasive from the surface; an abrasive baffle to cause backflow of water on the sheet and strip material surface and keep the abrasive in a suspended state; and a second flushing component to flush the suspended abrasive from the surface of the sheet and strip material. The abrasive baffle is arranged in a non-contact manner with the surface of the sheet and strip material. This arrangement firstly uses the water flow from the first flushing component to initially flush the surface of the sheet and strip material, weakening the adhesion between the abrasive and the surface. As the sheet and strip material is conveyed, the water flow from the first flushing component on the surface of the sheet and strip material is backflowed due to the obstruction of the abrasive baffle, keeping most of the abrasive in a suspended state. Finally, the second flushing component flushes the suspended abrasive from the surface of the sheet and strip material, thoroughly cleaning the residual abrasive from the surface. This flushing device actively weakens the adhesion between the abrasive and the surface of the strip and suspends the abrasive, allowing it to be easily flushed away from the strip. Compared to existing methods that directly flush abrasive with strong adhesion through multiple rows of water pipes, this device not only provides better cleaning but also saves water and reduces operating costs. Furthermore, the abrasive baffle does not directly contact the strip, avoiding the problems of incomplete cleaning caused by the easy wear and poor adaptability to the shape of traditional scrapers. It also eliminates the risk of scratches on the strip surface caused by abrasive jamming.

[0006] In the aforementioned rinsing device, preferably, the first rinsing component, the abrasive baffle, and the second rinsing component are all arranged across the strip material. The first rinsing component includes a first rinsing pipe and a plurality of first rinsing nozzles installed thereon, and the second rinsing component includes a second rinsing pipe and a plurality of second rinsing nozzles installed thereon. This arrangement across the strip material ensures that the processing action covers the entire width direction of the strip material during transport, guaranteeing uniformity and full coverage of the rinsing.

[0007] In the aforementioned rinsing device, preferably, the first flushing pipe, the abrasive baffle, and the second flushing pipe are all V-shaped structures with their openings facing the conveying direction of the strip, and the three are arranged parallel to each other. This V-shaped structure allows the second flushing pipe to quickly flush the abrasive away from the edges of the strip along the shortest path, greatly reducing abrasive retention on the strip surface and improving cleaning efficiency.

[0008] In the aforementioned rinsing device, preferably, the angle α between the two sides of the V-shaped structure and the conveying direction of the strip is 45°. This angle avoids the abrasive baffle losing its blocking effect on the water flow due to an angle that is too small, while also avoiding the situation where it is difficult to flush the abrasive out of the side edges due to an angle that is too large.

[0009] In the aforementioned rinsing device, preferably, the rinsing direction of the first water nozzle is perpendicular to the surface of the strip. This arrangement allows the vertical water flow to directly apply all the rinsing force to the strip surface, quickly stripping away abrasive particles, oxide scale, and other debris adhering to the strip surface.

[0010] In the aforementioned rinsing device, preferably, the second water nozzle's rinsing direction is towards the abrasive baffle, and the angle of inclination with the strip surface is 30°-60°. The second water nozzle's rinsing direction is towards the abrasive baffle, and the set inclination angle allows the water flow to pass through the gap between the abrasive baffle and the strip, quickly flushing the suspended abrasive away from the strip surface. Simultaneously, it ensures that the abrasive located behind the abrasive baffle is flushed off the strip surface, leaving the strip surface free of residual abrasive.

[0011] In the aforementioned rinsing device, preferably, the spacing between the plurality of first flushing nozzles and the plurality of second flushing nozzles is consistent, with a spacing range of 20-30cm. Setting a uniform spacing ensures that the rinsing force is evenly distributed in the width direction of the strip, guaranteeing that every area from the center to the edge of the strip receives a consistent and sufficient treatment effect. This distance range ensures that the water flow coverage areas of adjacent nozzles have sufficient overlap to prevent omissions, and effectively avoids the phenomenon of water jets impacting and interfering with each other due to excessively small spacing.

[0012] In the aforementioned rinsing device, preferably, the distance between the end of the abrasive baffle near the surface of the strip and the surface of the strip is 1-3 mm. This distance forms a narrow, non-contact channel, allowing the water flow from the second rinsing component to flush the suspended abrasive out of the strip through this narrow channel. At the same time, this structure can produce a significant blocking effect, forcing the water flow to backflow at this point, lifting the abrasive and keeping it in a suspended state.

[0013] In the aforementioned flushing device, preferably, the horizontal distance between the first flushing component and the abrasive baffle in the strip conveying direction is 5-10 cm. This distance ensures that the abrasive loosened by the vertical impact of the first flushing component can directly enter the effective range of the abrasive baffle in a short time, so that the loose abrasive can be immediately carried by the backflow of water to maintain a suspended state.

[0014] In the above-described rinsing device, preferably, the area where the water flow of the second rinsing component impacts the surface of the strip material is located at the abrasive baffle. This arrangement ensures that the water flow of the second rinsing component can immediately act on the abrasive suspended at the abrasive baffle, preventing secondary settling of the abrasive and maximizing rinsing efficiency.

[0015] Compared with the prior art, the advantages of this utility model are: This invention utilizes the synergistic action of a first flushing component, an abrasive baffle, and a second flushing component to first weaken the adhesion between the abrasive and the surface of the strip material, and to suspend the abrasive in a suspended state. This allows the abrasive to be easily flushed away from the strip surface, resulting in excellent cleaning performance and low water consumption. Furthermore, the abrasive baffle does not directly contact the strip material, avoiding the problems of incomplete cleaning caused by the easy wear and poor adaptability to strip shape of traditional scrapers. It also eliminates the risk of scratches on the strip surface caused by abrasive jamming. This invention reduces maintenance and operating costs while ensuring cleaning effectiveness and strip surface quality, making it particularly suitable for continuous conveying of wide-gauge strips. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a top view of a flushing apparatus for cleaning residual abrasive from the surface of a strip or sheet material, as described in the embodiment. Figure 2 This is a front view of a flushing apparatus for cleaning residual abrasive from the surface of sheet or strip, as described in an embodiment.

[0018] Legend 01. Steel plate; 02. Conveyor roller; 1. First flushing assembly; 11. First flushing pipe; 12. First flushing nozzle; 2. Abrasive baffle; 3. Second flushing assembly; 31. Second flushing pipe; 32. Second flushing nozzle. Detailed Implementation

[0019] To facilitate understanding of this utility model, it will be described more comprehensively and in detail below with reference to the accompanying drawings and preferred embodiments. However, the scope of protection of this utility model is not limited to the following specific embodiments.

[0020] It should be noted that when a component is described as being "fixed to, attached to, connected to or connected to" another component, it can be directly fixed to, attached to, connected to or connected to the other component, or it can be indirectly fixed to, attached to, connected to or connected to the other component through other intermediate connectors.

[0021] Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the scope of protection of this invention.

[0022] Unless otherwise specified, all raw materials, reagents, instruments and equipment used in this invention can be purchased from the market or prepared by existing methods.

[0023] Example: like Figure 1 and Figure 2 As shown, the flushing device for cleaning residual abrasive on the surface of strip and sheet material in this embodiment includes a first flushing component 1 for loosening abrasive on the surface of strip and sheet material, an abrasive baffle 2 for causing water flow back on the surface of strip and sheet material and causing the abrasive to be in a suspended state, and a second flushing component 3 for flushing the suspended abrasive away from the surface of strip and sheet material. The abrasive baffle 2 is arranged in a non-contact manner with the surface of strip and sheet material.

[0024] In this embodiment, the first flushing component 1, the abrasive baffle 2, and the second flushing component 3 are all arranged across the strip. The first flushing component 1 includes a first flushing pipe 11 and a plurality of first flushing nozzles 12 installed thereon. The second flushing component 3 includes a second flushing pipe 31 and a plurality of second flushing nozzles 32 installed thereon.

[0025] In this embodiment, the first flushing pipe 11, the abrasive baffle 2, and the second flushing pipe 31 are all V-shaped structures with their openings facing the conveying direction of the strip material, and the three are arranged in parallel to each other.

[0026] In this embodiment, the angle α between the two sides of the V-shaped structure and the conveying direction of the strip is 45°.

[0027] In this embodiment, the flushing direction of the first flush nozzle 12 is perpendicular to the surface of the strip.

[0028] In this embodiment, the water jet direction of the second water jet nozzle 32 is toward the abrasive baffle 2, and the angle between it and the surface of the strip is 30°-60°.

[0029] In this embodiment, the spacing between the plurality of first flush nozzles 12 and between the plurality of second flush nozzles 32 is consistent, and the spacing range is 20-30cm.

[0030] In this embodiment, the distance between the end of the abrasive baffle 2 near the surface of the strip and the surface of the strip is 1-3 mm.

[0031] In this embodiment, the horizontal distance between the first flushing component 1 and the abrasive baffle 2 in the strip conveying direction is 5-10cm.

[0032] In this embodiment, the area where the water flow of the second flushing component 3 impacts the surface of the strip is located at the abrasive baffle 2. In other embodiments, the area where the water flow of the second flushing component 3 impacts the surface of the strip may be located 1-2 mm from the abrasive baffle 2 on the side closer to the second flushing component 3.

[0033] In this embodiment, the abrasive is steel shot, the strip material is steel plate 01, the lower side of the steel plate 01 is horizontally conveyed by conveying roller 02, and the upper side of the steel plate 01 is sequentially equipped with a first flushing assembly 1, an abrasive baffle 2, and a second flushing assembly 3 along the conveying direction. The cleaning process includes: firstly, the first flushing nozzle 12 vertically impacts the surface of the steel plate 01 with low pressure and high flow rate to form water waves, weakening the bonding force between the abrasive and the strip material, causing the steel shot to loosen and detach from the surface. Subsequently, as the steel plate 01 is conveyed, the abrasive baffle 2 blocks the water flow from the first flushing nozzle 12 and the steel shot, and uses the generated backflow to make the steel shot move backward and maintain a suspended state. Finally, the second flushing nozzle 32 flushes the water flow towards the surface of the steel plate 01 below the abrasive baffle 2, completely flushing the steel shot at the abrasive baffle 2 away from the surface of the steel plate 01.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rinsing device for cleaning residual abrasive from the surface of sheet and strip materials, characterized in that, The device includes a first flushing assembly (1) for loosening abrasive particles on the surface of the strip, an abrasive baffle (2) for causing water flow back on the surface of the strip and suspending the abrasive particles, and a second flushing assembly (3) for flushing the suspended abrasive particles away from the surface of the strip. The abrasive baffle (2) is arranged in a non-contact manner with the surface of the strip.

2. The rinsing device according to claim 1, characterized in that, The first flushing assembly (1), the abrasive baffle (2), and the second flushing assembly (3) are all arranged across the strip. The first flushing assembly (1) includes a first flushing pipe (11) and a plurality of first flushing nozzles (12) installed thereon. The second flushing assembly (3) includes a second flushing pipe (31) and a plurality of second flushing nozzles (32) installed thereon.

3. The rinsing device according to claim 2, characterized in that, The first flushing pipe (11), the abrasive baffle (2), and the second flushing pipe (31) are all V-shaped structures with openings facing the conveying direction of the strip material, and the three are arranged in parallel to each other.

4. The rinsing device according to claim 3, characterized in that, The angle α between the two sides of the V-shaped structure and the conveying direction of the strip is 45°.

5. The rinsing device according to claim 2, characterized in that, The flushing direction of the first flush nozzle (12) is perpendicular to the surface of the strip.

6. The rinsing device according to claim 2, characterized in that, The second flushing nozzle (32) flushes towards the abrasive baffle (2) and has an angle of 30°-60° with the surface of the strip.

7. The rinsing device according to claim 2, characterized in that, The spacing between the first flush nozzles (12) and between the second flush nozzles (32) is consistent, and the spacing ranges from 20 to 30 cm.

8. The rinsing apparatus according to any one of claims 1-7, characterized in that, The abrasive baffle (2) is 1-3 mm away from the surface of the strip at one end.

9. The rinsing apparatus according to any one of claims 1-7, characterized in that, The horizontal distance between the first flushing component (1) and the abrasive baffle (2) in the strip conveying direction is 5-10cm.

10. The rinsing apparatus according to any one of claims 1-7, characterized in that, The area where the water flow of the second flushing component (3) impacts the surface of the strip material is located at the abrasive baffle (2).

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