Reverse-angle cleaning tool for inner wall of furnace nose

Abstract

The utility model discloses a furnace nose inner wall reverse angle cleaning tool which comprises a long pipe, one end of the long pipe is a connecting part, the connecting part is connected with an external high-pressure air pump through a hose, the other end of the long pipe is a cleaning part, a plurality of nozzles are arranged on the cleaning part, and the nozzles surround the cleaning part and are arranged in a downward inclined mode. The nozzles on the long pipe are arranged at the opposite angles inclined downwards, so that the nozzles can extend into the furnace nose from the lower part of the furnace nose to blow high-pressure nitrogen into the furnace nose to clean metal ash attached to the inner wall of the furnace nose, and compared with a manner that the nozzles extend into the furnace nose through a hose from a preformed hole above to clean the metal ash, the nozzles are more convenient to clean. And meanwhile, due to the arrangement of the multiple nozzles, the cleaning efficiency can be improved, and cleaning is more thorough.

Description

Technical Field

[0001] This utility model relates to the field of galvanizing / aluminum production technology, specifically to a tool for cleaning the inner wall of a furnace nose at a reverse angle. Background Technology

[0002] In continuous hot-dip galvanizing / aluminizing production lines, due to the special nature of the process, high-temperature molten metal (e.g., zinc molten metal 450℃ / aluminum molten metal 650℃) needs to be coated onto the surface of a high-temperature iron substrate (400-700℃). A sealed furnace nose is required between the substrate heating furnace and the zinc / aluminum pot where the coating metal is dissolved. The end of the furnace nose is immersed in the zinc pot to ensure air isolation and guarantee coating quality. Due to the evaporation of the high-temperature molten metal, a large amount of metal (zinc / aluminum) adheres to the inner wall of the furnace nose. In continuous production, especially for products with high-grade surface finish requirements, this metal dust falling onto the substrate will create defects, leading to substandard coated products. Therefore, thorough cleaning of the inside of the furnace nose can significantly reduce the degradation caused by this defect. This location is a high-temperature environment (zinc plating temperature around 470℃, aluminized silicon plating temperature around 660℃). Cleaning in this area must be done carefully to avoid blowing this metal dust into the heating furnace and contaminating the furnace environment, while also ensuring that the internal structure and related components are not damaged during cleaning. Because the upper part of the furnace nose is a sealed structure, a small hole is usually reserved at the upper part for cleaning. The existing cleaning technology relies on a pipe that is manually inserted into the small hole and moved to change position randomly for cleaning. The cleaning method is from top to bottom, which cannot guarantee that all areas are cleaned in place. In particular, the area above the small hole is not cleaned in place. At the same time, the inner diameter of the furnace nose is large, which makes it difficult to achieve thorough cleaning.

[0003] Therefore, there is an urgent need to provide a tool for more thorough cleaning of the inner wall of the furnace nose. Utility Model Content

[0004] To address the aforementioned shortcomings of existing technologies, the purpose of this utility model is to provide a reverse-angle cleaning tool for the inner wall of the furnace nose, which solves the problem of incomplete cleaning of the inner wall of the furnace nose and the impact on product quality caused by the manual insertion of the air pipe into the small hole at the top for random cleaning in existing technologies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A tool for cleaning the inner wall of a furnace nose at a reverse angle includes a long tube. One end of the long tube is a connecting part, which is connected to an external high-pressure air pump via a hose. The other end of the long tube is a cleaning part, on which multiple nozzles are provided, and the nozzles surround the cleaning part and are inclined downwards.

[0007] With the above structural design, the nozzles on the long tube are set at a downward tilting angle, so they can be inserted into the interior from below the furnace nose for cleaning. Compared with cleaning through the pre-drilled hole at the top using a flexible hose, the dead corners at the top can be cleaned. At the same time, the setting of multiple nozzles can improve cleaning efficiency and make cleaning more thorough.

[0008] Preferably, four nozzles are evenly arranged on the cleaning section, and the angle between the nozzles and the long tube is 40°.

[0009] With the above structural design, the four nozzles can be set in four directions, thus enabling high-pressure air blowing cleaning of multiple locations simultaneously. The long tube can be moved and rotated to achieve thorough cleaning of different locations without dead angles. Furthermore, the 40° angle between the nozzles and the long tube not only ensures that the high-pressure gas blown out acts on the inner wall of the furnace nose, causing the metal ash to quickly fall downwards, but also prevents the metal ash from rising upwards and entering the heating furnace.

[0010] Preferably, the inner diameter of the long tube is larger than the inner diameter of the nozzle.

[0011] Preferably, the inner diameter of the long tube is 30 mm, and the inner diameter of the nozzle is 10 mm.

[0012] The above structural design can further increase the pressure of high-pressure nitrogen and improve its cleaning ability.

[0013] Preferably, the long tube is formed by detachably connecting multiple connecting tubes, and a sealing ring is provided at the connection of the connecting tubes.

[0014] The above structural design allows for adjustment of the tube length while ensuring a tight seal at the connection points, thus improving the flexibility of the cleaning tool.

[0015] Preferably, a handle is provided at an adjacent position of the connecting part, the handle and the connecting part are bent at 10-30°, and the handle is provided with anti-slip texture.

[0016] With the above structural design, the protective texture on the handle ensures that it will not slip when wearing protective clothing and gloves. At the same time, the design of bending the handle and the connecting part at a certain angle allows the tool to maintain a certain positional difference from the upper part when the manual hand is cleaning below the furnace nose, preventing hot metal ash from falling onto the hand, thereby improving the safety of using the tool.

[0017] Preferably, the long tube and the nozzle are made of stainless steel, and the nozzle is fixed to the long tube by welding.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This utility model uses a nozzle on a long tube that is tilted downwards at a reverse angle. Therefore, high-pressure nitrogen can be blown into the interior from below the furnace nose to clean the metal ash adhering to the inner wall of the furnace nose. Compared with cleaning by inserting a hose into the interior through the reserved hole above, it can clean the dead corners above the furnace nose. At the same time, the setting of multiple nozzles can improve cleaning efficiency and make cleaning more thorough.

[0020] 2. The long tube in this utility model adopts a detachable assembly design, which can be adjusted according to the usage requirements, thereby improving the flexibility of the tool. At the same time, the design of the hand-held part and the connecting part being bent at a certain angle allows the tool to maintain a certain positional difference with the upper end when the manual hand-held tool is cleaning below the furnace nose, preventing high-temperature metal ash from falling onto the hand, thereby improving the safety of the tool. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0022] Figure 2 This is a top view of the present invention;

[0023] Figure 3 This is a structural schematic diagram of Embodiment 2 of this utility model.

[0024] In the picture:

[0025] Long tube 1, connecting part 1a, cleaning part 1b, connecting tube 1c, sealing ring 1d, handheld part 1e, anti-slip texture 1f, connecting texture 1g, nozzle 2. Detailed Implementation

[0026] To explain in detail the technical content, structural features, objectives and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0027] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Example 1

[0029] Please see Figure 1 and Figure 2 A reverse-angle cleaning tool for the inner wall of a furnace nose includes a long tube 1. One end of the long tube 1 is a connecting part 1a, which is connected to an external high-pressure air pump via a flexible hose. The other end of the long tube 1 is a cleaning part 1b, on which multiple nozzles 2 are arranged, surrounding the cleaning part 1b and tilted downwards. In this invention, the cleaning tool extends into the furnace nose from bottom to top, and the downward tilting of the nozzles 2 is referred to as a reverse angle. Since metallic ash cannot be blown into the heating furnace from the upper substrate inlet, and the top-down cleaning method using a high-pressure pipe inserted through the upper pre-drilled hole would result in incomplete cleaning of the area above the pre-drilled hole. Therefore, this application adopts a bottom-up approach with reverse-angled nozzles 2, which can reach deep into the area above the upper pre-drilled hole for cleaning, maximizing the cleaning effect.

[0030] In this embodiment, four nozzles 2 are evenly arranged on the cleaning section 1b, and the angle between the nozzles 2 and the long tube 1 is 40°. This angle is the optimal angle after long-term testing, but this invention is not limited to the aforementioned angle setting. The number of nozzles 2 is also not limited to four; this application designs four nozzles to simultaneously satisfy high-pressure nitrogen cleaning from four directions, thereby improving cleaning efficiency.

[0031] In this embodiment, the inner diameter of the long tube 1 is larger than the inner diameter of the nozzle 2. Specifically, the inner diameter of the long tube 1 is 30 mm, and the inner diameter of the nozzle 2 is 10 mm.

[0032] In this embodiment, the long tube 1 and the nozzle 2 are made of stainless steel, and the nozzle 2 is fixed to the long tube 1 by welding.

[0033] In this embodiment, the connection part 1a is provided with connection texture 1g at the connection point with the hose, which can improve the stability of the connection with the hose.

[0034] Example 2

[0035] Please see Figure 3 The long tube 1 is formed by detachable connection of multiple connecting tubes 1c, specifically by threaded connection. A sealing ring 1d is provided at the connection of the connecting tubes 1c to further improve the sealing effect at the connection and prevent the gas pressure of the tool from being reduced due to poor sealing.

[0036] Furthermore, a handhold part 1e is provided at an adjacent position of the connecting part 1a. The handhold part 1e and the connecting part 1a are bent at 10-30°, and the handhold part 1e is provided with anti-slip texture 1f.

[0037] The working principle of this utility model is as follows:

[0038] When regular cleaning of the inner wall of the furnace nose is required, first remove the zinc pot below the furnace nose. Then, connect and fix the connecting part 1a of the long pipe 1 to the hose, and secure the hose at the connection point with a clamp to prevent it from falling off under high pressure. The other end of the hose is connected to an external high-pressure air pump to provide high-pressure nitrogen. Then, the operator, wearing protective clothing, holds the long pipe 1 and inserts the cleaning part 1b into the lower part of the furnace nose, introducing high-pressure nitrogen. The high-pressure gas cleans the metal ash inside the furnace nose, while the long pipe 1 is moved and rotated to clean different positions. The cleaned metal ash falls down the inner wall of the furnace nose to the ground. The cleaning part 1b can reach the top of the furnace nose for cleaning, which solves the problem of not being able to clean the upper part when entering through the reserved hole at the top of the furnace nose. At the same time, since there are multiple nozzles 2 set at a certain angle, cleaning of multiple directions and areas can be completed at one time, thus improving cleaning efficiency.

[0039] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A tool for cleaning the inner wall of a furnace nose at a reverse angle, characterized in that, It includes a long tube (1), one end of which is a connecting part (1a), which is connected to an external high-pressure air pump through a hose. The other end of the long tube (1) is a cleaning part (1b), which is provided with multiple nozzles (2), and the nozzles (2) surround the cleaning part (1b) and are inclined downward.

2. The furnace nose inner wall reverse angle cleaning tool as described in claim 1, characterized in that, Four nozzles (2) are evenly arranged on the cleaning section (1b), and the angle between the nozzles (2) and the long tube (1) is 40°.

3. A furnace nose inner wall reverse angle cleaning tool as described in claim 1 or 2, characterized in that, The inner diameter of the long tube (1) is larger than the inner diameter of the nozzle (2).

4. The furnace nose inner wall reverse angle cleaning tool as described in claim 3, characterized in that, The inner diameter of the long tube (1) is 30 mm, and the inner diameter of the nozzle (2) is 10 mm.

5. The furnace nose inner wall reverse angle cleaning tool as described in claim 1, characterized in that, The long tube (1) is formed by detachable connection of multiple connecting tubes (1c), and a sealing ring (1d) is provided at the connection of the connecting tubes (1c).

6. The furnace nose inner wall reverse angle cleaning tool as described in claim 1, characterized in that, A handle (1e) is provided at an adjacent position to the connecting part (1a). The handle (1e) and the connecting part (1a) are bent at 10-30°, and the handle (1e) is provided with anti-slip texture (1f).

7. The furnace nose inner wall reverse angle cleaning tool as described in claim 1, characterized in that, The long tube (1) and the nozzle (2) are made of stainless steel, and the nozzle (2) is fixed to the long tube (1) by welding.

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