Deslagging device for water seal tank of heating furnace

Abstract

The utility model provides a deslagging device for a water seal tank of a heating furnace, and particularly relates to the technical field of deslagging equipment, which comprises a translation frame cross beam and a plurality of water beam moving beam upright posts arranged on the translation frame cross beam, the water seal tank is arranged on the water beam moving beam upright posts, a furnace frame is arranged outside the water beam moving beam upright posts, and a slag discharging device is arranged outside the furnace frame. A skirt cover is arranged above the water seal tank, a slag scraping piece is arranged in the skirt cover, and the slag scraping piece comprises a slag scraping plate and a slag scraping block which is arranged at the bottom of the slag scraping plate and connected with the slag scraping plate through an elastic piece; the slag scraping block and the slag scraping plate are connected through the elastic piece, so that when the slag scraping block is in contact with a larger slag block, the slag scraping block can rotate inwards, and the slag scraping block is prevented from being directly extruded with the slag block, so that the force of the slag block acting on the slag scraping block and the skirt cover in the rising process of the water seal tank is reduced, and the service life of the water seal tank is prolonged. And the slag scraping block, the skirt cover and the water seal tank can be effectively protected.

Description

Technical Field

[0001] This utility model relates to the technical field of slag discharge devices, and in particular to a slag discharge device for a water seal tank of a heating furnace. Background Technology

[0002] In the metallurgical industry, walking beam furnaces are increasingly being used for steel rolling heating. When the billet is heated by the walking beam furnace, iron oxide forms on the surface of the billet. As the billet moves through the furnace, the iron oxide scale falls off and into the moving beam skirt and enters the water seal tank. The slag is then removed by the slag removal device.

[0003] Existing slag removal devices, such as Figure 1-3 As shown, existing scraper blades and scraper blocks are fixedly connected. Therefore, during the use of the scraper block, as the water beam rises, slag in the water seal trough will directly contact the scraper block. With this contact, the forces are mutual. Larger slag pieces in the slag block will continuously exert compressive force on the scraper block due to prolonged contact. As stress accumulates, plastic deformation will occur when the stress exceeds the yield strength of the scraper block material. If the stress further exceeds the tensile strength, the scraper block will detach. Simultaneously, the force exerted on the scraper block by the slag will be transmitted to the skirt, potentially causing damage. Furthermore, with prolonged accumulation of slag in the water seal trough, large-volume hard scale can easily form. This hard scale, being rigid, exerts compressive force on the scraper block like a rigid object during operation. In actual operation, scaling accelerates the wear rate of the scraper block and shortens its service life. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a slag discharge device for a water seal tank of a heating furnace to more accurately resolve these issues.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model proposes a slag removal device for a water seal trough of a heating furnace, including a horizontal beam of a translation frame and several water beam moving beam columns arranged on the horizontal beam of the translation frame. A water seal trough is provided on the water beam moving beam columns. A furnace frame is provided outside the water beam moving beam columns. A skirt is provided outside the furnace frame and above the water seal trough. A slag scraper is provided at the bottom of the skirt. The slag scraper includes a scraper plate, a scraper block provided at the bottom of the scraper plate and connected to the scraper plate by a spring, and a limiting plate provided at the bottom of the scraper plate and inclined. The inner side of the limiting plate abuts against one side of the scraper block.

[0007] Furthermore, the present invention provides wing plates on both sides of the slag scraper block.

[0008] Furthermore, the bottom of the scraper block is provided with a blade.

[0009] Furthermore, in this invention, the spring is made of 316 stainless steel, and the blade is made of aluminum oxide-based cemented carbide.

[0010] Furthermore, the bottom of the scraper plate is provided with a placement groove for installing one end of the spring sheet, and the other end of the spring sheet is welded to the inner side of the scraper block.

[0011] Furthermore, the limiting plate and the bottom of the scraper plate are set at an angle of 45-60 degrees.

[0012] The beneficial effects of this utility model are:

[0013] The advantage of using a spring-loaded connection between the scraper block and the scraper plate is that when the scraper block comes into contact with a larger slag block, it will rotate inward, preventing the scraper block from directly squeezing against the slag block. This reduces the force exerted by the slag block on the scraper block and skirt during the rising of the water seal tank, effectively protecting the scraper block, skirt, and water seal tank, and increasing their service life. The limiting plate restricts the outward rotation of the scraper block, allowing it to rotate only inward. While constraining the outward rotation, when a directly contacting scraper block is lifted and rotated by a larger slag block at the bottom, the next scraper block will push and clean the larger slag block.

[0014] The slot design allows for the locking and placement of one end of the spring clip. The advantage of this locking and placement method is that it facilitates the replacement of various components by the operators. Attached Figure Description

[0015] Figure 1 This is a front view diagram of the existing slag scraper in this utility model, connecting it to the heating furnace and water seal tank.

[0016] Figure 2 This is a side view of the connection between the slag scraper and the heating furnace and the water seal tank in this utility model.

[0017] Figure 3 In this utility model Figure 1 Enlarged structural diagram of the middle scraper component

[0018] Figure 4 This is a schematic diagram of the slag scraper structure in this utility model;

[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the slag scraper in this utility model;

[0020] Figure 6 This is a schematic diagram of the disassembled structure of the slag scraper in this utility model.

[0021] In the diagram, 1. Transverse frame beam; 2. Water beam moving beam column; 3. Water seal trough; 4. Slag scraper; 41. Slag scraper plate; 411. First placement trough; 42. Spring piece; 43. Slag scraper block; 44. Limiting plate; 45. Wing plate; 46. Blade plate; 5. Skirt cover; 6. Furnace frame. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some, but not all, of the embodiments of this utility model. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example

[0023] refer to Figure 1-6 A slag removal device for a water seal trough of a heating furnace includes a horizontal beam 1 for translating a frame and several water beam columns 2 arranged on the horizontal beam 1. A water seal trough 3 is provided on the water beam columns 2. A furnace frame 6 is provided outside the water beam columns 2. A skirt 5 is provided outside the furnace frame 6 and above the water seal trough 3. A slag scraper 4 is provided at the bottom of the skirt 5. The slag scraper 4 includes a scraper plate 41, a scraper block 43 provided at the bottom of the scraper plate 41 and connected to the scraper plate 41 by a spring piece 42, and a limiting plate 44 provided at the bottom of the scraper plate 41 and inclined. The inner side of the limiting plate 44 abuts against one side of the scraper block 43.

[0024] The advantage of using a spring clip 42 to connect the scraper block 43 and the scraper plate 41 is that when the scraper block 43 comes into contact with a larger slag block, it will rotate inward, avoiding direct squeezing between the scraper block 43 and the slag block. This reduces the force exerted by the slag block on the scraper block 43 and the skirt 5 during the rising process of the water seal trough 3, effectively protecting the scraper block 43, the skirt 5, and the water seal trough 3, and increasing the service life of the scraper block 43, the skirt 5, and the water seal trough 3. The setting of the limiting plate 44 can limit the outward rotation direction of the scraper block 43, so that the scraper block 43 can only rotate inward. At the same time, under the premise of constraining the outward rotation of the scraper block 43, when the scraper block 43 in direct contact is lifted and rotated by a larger slag block at the bottom, the next scraper block 43 that moves in will push and clean the larger slag block.

[0025] In this embodiment, the movement directions of the water beam column 2 are up, left, down and right in sequence, so that the water seal trough 3 is in contact with the slag outlet and the slag block is cleaned up.

[0026] In this embodiment, the spring sheet 42 is V-shaped and is made of 316 stainless steel. The advantage of using this material is that it can work in an elastic environment at high temperatures without being affected by high temperatures.

[0027] In this embodiment, the scraper block 43 is provided with wing plates 45 on both sides. The wing plates 45, together with the scraper block 43, can not only increase the structural strength and stability of the scraper block 43 itself, but also facilitate the gathering of the scraper block and prevent it from spreading to the surroundings, thereby improving the cleaning efficiency of the scraper block itself.

[0028] In this embodiment, the bottom of the scraper block 43 is provided with a blade 46. The blade 46 can scrape and remove the debris attached to the bottom of the water seal tank 3, which can not only increase the cleaning area of ​​the debris block itself, but also effectively clean the hard debris block with scale.

[0029] In this embodiment, the blade plate 46 is made of aluminum oxide-based cemented carbide, and the spring plate 42 is made of 316 stainless steel.

[0030] like Figure 5 As shown, the bottom of the scraper plate 41 is provided with a placement groove 411 for installing one end of the spring piece 42, and the other end of the spring piece 43 is welded to the inner side of the scraper block 43; the placement groove 411 can be used to lock one end of the spring piece 42, and the advantage of locking the spring piece 42 is that it is convenient for workers to replace various parts.

[0031] In this embodiment, the limiting plate 44 and the bottom of the scraper plate 41 are set at an angle of 45-60 degrees. The advantage of setting the limiting plate 44 at this angle range is that it can ensure the stability of the limiting plate 44 itself during use.

[0032] Working principle:

[0033] As the water seal trough 3 moves upward with the translation frame beam 1, the slag blocks falling into the water seal 3 trough will move synchronously to one side of the scraper block 43. Simultaneously, as the translation frame beam 1 moves to the right, the water seal trough 3 will move in the same direction. During the movement of the water seal trough 3, the scraper block 43 will block the slag blocks located within the water seal trough 3, and the movement of the water seal trough 3 will push the slag blocks. Specifically, when the scraper block 43 comes into contact with a large slag block, the large slag block will push the scraper block 43. The upward push, due to the presence of the spring 42, causes the scraper block 43 to rotate upward, thus preventing large slag blocks from exerting pressure on the scraper block 43 and protecting it. In addition, when the scraper block 43 in direct contact is lifted and rotated by a larger slag block at the bottom, the next scraper block 43 that moves in will clean the larger slag block. The blade plate 46 is designed to scrape and clean the hard slag blocks that have accumulated at the bottom of the water seal tank 3, thus preventing the accumulation of slag blocks.

[0034] It should be noted that this utility model only protects the mechanical part, and the functions implemented by the software control part are not within the scope of protection of this utility model.

[0035] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. A slag discharge device for a water seal tank of a heating furnace, characterized in that, The system includes a horizontal beam for translating a frame and several water-beam moving beam columns mounted on the horizontal beam for translating a frame. Each water-beam moving beam column is provided with a water seal groove. A furnace frame is provided outside the water-beam moving beam columns. A skirt is provided outside the furnace frame and above the water seal groove. A slag scraper is provided at the bottom of the skirt. The slag scraper includes a slag scraper plate, a slag scraper block located at the bottom of the slag scraper plate and connected to the slag scraper plate by a spring, and a limiting plate located at the bottom of the slag scraper plate and inclined. The inner side of the limiting plate abuts against one side of the slag scraper block.

2. The slag discharge device for a water seal tank of a heating furnace according to claim 1, characterized in that, The scraper block is provided with wing plates on both sides.

3. The slag discharge device for a water seal tank of a heating furnace according to claim 1, characterized in that, The bottom of the scraper block is equipped with a blade.

4. The slag discharge device for a water seal tank of a heating furnace according to claim 3, characterized in that, The spring is made of 316 stainless steel, and the blade is made of aluminum oxide-based cemented carbide.

5. The slag discharge device for a water seal tank of a heating furnace according to claim 1, characterized in that, The bottom of the scraper plate has a slot for mounting one end of the spring sheet, and the other end of the spring sheet is welded to the inner side of the scraper block.

6. The slag discharge device for a water seal tank of a heating furnace according to claim 1, characterized in that, The limiting plate and the bottom of the scraper plate are set at an angle of 45-60 degrees.

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