Wear-resistant structure of slag extractor

Abstract

The utility model relates to a wear-resistant structure of a slag extractor, which is arranged in a slag groove and is in direct contact with slag and a ram, and the slag is pushed by the ram along the slag groove. A plurality of wear-resistant plates are laid on the inner wall of the slag groove, and the inner wall of the slag groove is fully paved with the wear-resistant plates; a welding part is arranged on the wear-resisting plate; the welding part is in plug welding connection with the slag groove; and the wear-resisting plate is connected with the slag groove through the welding part in a plug welding manner. The tensile strength and the shear strength of plug welding are high, and welding can be completed within a short time. When the abrasion-resistant plate is abraded, the abrasion-resistant plate in the slag groove can be dismounted only by polishing off a welding seam, the abrasion-resistant plate is very convenient to dismount and mount, the shutdown time during maintenance of the slag extractor is shortened, and the working efficiency of the slag extractor is improved. And holes do not need to be formed in the slag groove through plug welding connection, so that the slag in the slag groove cannot leak to pollute the environment even if the wear-resisting plate falls off accidentally.

Description

Technical Field

[0001] This utility model relates to the field of slag discharge machine technology, and in particular to the wear-resistant structure of slag discharge machine. Background Technology

[0002] A slag remover is a boiler slag removal device. The slag produced after boiler combustion is pushed by the grate into the slag pit, and then dragged out of the furnace by the slag remover to clear the slag accumulation.

[0003] As the slag moves through the slag trough of the slag discharger, it causes severe wear. Therefore, wear-resistant plates are laid inside the trough. However, the wear-resistant plates are bolted to the slag trough, requiring connection holes to be drilled in the trough. Disassembling and assembling the wear-resistant plates also requires at least two operators, making installation and maintenance cumbersome. Once one of the bolt's fixing points wears away, the bolt loses its fixing function, and the wear-resistant plate needs to be replaced. Furthermore, once the bolt is deformed due to the slag, disassembly becomes extremely difficult, prolonging the slag discharger's downtime and significantly impacting its working efficiency.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a wear-resistant structure for the slag discharge machine to optimize its wear resistance.

[0006] The technical solution of this utility model is as follows:

[0007] A wear-resistant structure for a slag discharger is installed inside the slag trough, directly contacting the slag material and the sliding ram.

[0008] The slag is pushed along the slag trough by the slide block; wear-resistant plates are laid on the inner wall of the slag trough, and multiple wear-resistant plates cover the inner wall of the slag trough; the wear-resistant plates are provided with welding parts; the welding parts are plug-welded to the slag trough; the wear-resistant plates are plug-welded to the slag trough through the welding parts.

[0009] A further technical solution is that the wear-resistant plate has a thickness of 12mm.

[0010] A further technical solution is that the welding part has a welding hole, and the welding hole and the slag tank are connected by plug welding.

[0011] A further technical solution is to leave a gap of 4mm-5mm between adjacent wear-resistant plates.

[0012] A further technical solution is that the wear-resistant plate is a rectangular plate.

[0013] A further technical solution is that four welding parts are provided, and the four welding parts are distributed at the four top corners of the wear-resistant plate.

[0014] A further technical solution is that a wear-resistant guide rail is also provided at the bottom of the slag trough; after the wear-resistant plate is laid at the bottom of the slag trough, the wear-resistant guide rail is plug-welded to the wear-resistant plate.

[0015] A further technical solution is as follows: along the sliding direction of the slag, the direction in which the slag begins to slide is the first direction, and the direction in which the slag slides is the second direction; a first limiting part is extended from the lower outer edge of the wear-resistant plate in the first direction; a second limiting part is extended from the upper outer edge of the wear-resistant plate in the second direction; after the wear-resistant plate is laid, between adjacent wear-resistant plates, the second limiting part of the wear-resistant plate in the first direction is located above the first limiting part of the wear-resistant plate in the second direction.

[0016] The beneficial technical effects of this utility model are as follows:

[0017] (1) The wear-resistant structure of the slag discharger in this utility model features a wear-resistant plate laid inside the slag trough, which is connected to the slag trough by a plug weld. The plug weld has high tensile and shear strength, and the welding can be completed in a short time. When the wear-resistant plate is worn out, it can be removed from the slag trough simply by grinding off the weld. The disassembly and assembly of the wear-resistant plate are very convenient, reducing downtime during slag discharger maintenance and improving the working efficiency of the slag discharger. In addition, the weld at the connection between the wear-resistant plate and the slag trough can protect the slag trough as long as the wear-resistant plate is not worn through, thus improving the utilization rate of the wear-resistant plate. Furthermore, the plug weld connection does not require drilling holes in the slag trough, so even if the wear-resistant plate accidentally falls off, the slag inside the slag trough will not leak and pollute the environment.

[0018] (2) Furthermore, the wear-resistant part is provided with welding holes, through which the wear-resistant plate is fixed in the slag trough. Even if the wear-resistant plate is thick, it can be fixed in the slag trough by plug welding.

[0019] (3) Furthermore, there are four welding parts, that is, the wear-resistant plate is fixed to the slag trough at four positions at the same time, which improves the stability of the wear-resistant plate fixing. Attached Figure Description

[0020] Figure 1 The diagram shows the main view of the slag discharger when the wear-resistant structure of this invention is installed on the slag discharger.

[0021] Figure 2 The diagram shows the assembly structure of the slag trough and the wear-resistant plate in the wear-resistant structure of the slag discharger of this utility model.

[0022] Figure 3 The diagram shows the main view of the wear-resistant plate in the wear-resistant structure of the slag discharger of this utility model.

[0023] Marked in the attached diagram:

[0024] 1. Slag trough; 2. Wear-resistant plate; 21. Welding part; 22. Welding hole; 221. Weld seam; 23. First limiting part; 24. Second limiting part; 3. Wear-resistant guide rail. Detailed Implementation

[0025] To make the objectives, features, and advantages of this utility model more apparent and understandable, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the implementation conditions of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model.

[0026] In the description of this utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", 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.

[0027] Figure 1 The diagram shows the main view of the slag discharger when the wear-resistant structure of this invention is installed on the slag discharger. Figure 2 This diagram illustrates the assembly structure of the slag trough and wear-resistant plate in the wear-resistant structure of the slag discharger of this invention. Please refer to the diagram. Figure 1 and Figure 2The slag discharger features a wear-resistant structure housed within the slag trough 1, directly contacting the slag material and the ram. The slag material is propelled along the trough 1 by the ram. Wear-resistant plates 2 are laid on the inner wall of the slag trough 1, with multiple plates covering the entire inner wall. Welded sections 21 are provided on the wear-resistant plates 2. These welded sections 21 are plug-welded to the slag trough 1. The wear-resistant plates 2 are connected to the slag trough 1 via the welded sections 21. Plug welding offers high tensile and shear strength, allowing for rapid welding. When the wear-resistant plates 2 are worn down, they can be removed from the slag trough 1 simply by grinding away the weld seam 221. The easy assembly and disassembly of the wear-resistant plates 2 reduces downtime during slag discharger maintenance and improves the machine's efficiency. Furthermore, the weld seam 221 at the connection between the wear-resistant plates 2 and the slag trough 1 serves to protect the slag trough 1 as long as the wear-resistant plates 2 are not worn through, thus increasing the utilization rate of the wear-resistant plates 2. Furthermore, plug welding does not require drilling holes in the slag tank 1, and even if the wear-resistant plate 2 accidentally falls off, the slag in the slag tank 1 will not leak and pollute the environment.

[0028] Preferably, the material of the wear-resistant plate 2 can be ordinary low-carbon steel with good toughness and plasticity, or a plate product made by welding a certain thickness of alloy wear-resistant layer with high hardness and excellent wear resistance.

[0029] Please refer to Figure 1 and Figure 2 The wear-resistant plate 2 has a thickness of 12mm. This thickness provides good wear resistance and impact resistance. Furthermore, this thickness is still suitable for processing techniques such as cutting and punching, facilitating production.

[0030] Preferably, the welding section 21 has a welding hole 22, and the welding hole 22 and the slag tank 1 are connected by plug welding. When the wear-resistant plate 2 is thick, plug welding is difficult, and the crossbeam meets the technical requirements for plug welding holes. First, the welding hole 22 is opened on the wear-resistant plate 2, and then the wear-resistant plate 2 and the slag tank 1 are welded in the hole, which facilitates welding.

[0031] More preferably, a gap of 4mm-5mm is left between adjacent wear-resistant plates 2. The gap allows for the deformation of the wear-resistant plates 2, preventing deformation and damage to the laid wear-resistant plates 2 during welding, heating, or cooling.

[0032] Please refer to Figure 1 and Figure 2 The wear-resistant plate 2 is a rectangular plate, which is easier to splice and lay, making it easier to lay the wear-resistant plate 2 in the slag trough 1.

[0033] Preferably, four welding parts 21 are provided, and the four welding parts 21 are distributed at the four top corners of the wear-resistant plate 2, that is, the wear-resistant plate 2 is fixed to the slag tank 1 at four positions at the same time, thereby improving the stability of the wear-resistant plate 2.

[0034] More preferably, a wear-resistant guide rail 3 is also provided at the bottom of the slag trough 1. After the wear-resistant plate 2 is laid at the bottom of the slag trough 1, the wear-resistant guide rail 3 is plug-welded to the wear-resistant plate 2. The ram slides along the wear-resistant guide rail 3 in the slag trough 1. The wear-resistant guide rail 3 reduces the contact area between the ram and other parts when the ram slides, and reduces the friction force when the ram slides.

[0035] Figure 3 This diagram shows a front view of the wear-resistant plate in the wear-resistant structure of the slag discharger of this invention. Please refer to the diagram. Figure 2 and Figure 3 Along the sliding direction of the slag, the direction in which the slag begins to slide is the first direction, and the direction in which the slag slides is the second direction. A first limiting part 23 extends from the lower outer edge of the wear-resistant plate 2 in the first direction. A second limiting part 24 extends from the upper outer edge of the wear-resistant plate 2 in the second direction. After the wear-resistant plates 2 are laid, the second limiting part 24 of the wear-resistant plate 2 in the first direction is positioned above the first limiting part 23 of the wear-resistant plate 2 in the second direction between adjacent wear-resistant plates 2. When the ram pushes the slag to move within the slag trough 1, the slag easily gets stuck between adjacent wear-resistant plates 2. The ram pushing the slag stuck between the wear-resistant plates 2 will pry the wear-resistant plates 2, easily causing them to lift up. After setting the first limiting part 23 and the second limiting part 24, along the direction in which the slag pries the wear-resistant plate 2, the second limiting part 24 presses down on the wear-resistant plate 2 through the first limiting part 23, preventing the wear-resistant plate 2 from being lifted up and enhancing the stability of the laid wear-resistant plates 2.

[0036] The specific disassembly and assembly process of this utility model is as follows:

[0037] First, welding holes 22 are made at the preset positions on the wear-resistant plate 2. Then, the wear-resistant plate 2 is moved into the slag tank 1 and fixed in the slag tank 1 by plug welding. The bottom of the slag tank 1 can be filled with the wear-resistant plates 2 to be welded before welding. When the wear-resistant plate 2 needs to be replaced after wear, its thickness is reduced. The weld seam 221 at the plug welding position is ground off using a grinding device, and the wear-resistant plate 2 can then be removed.

[0038] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A wear-resistant structure for a slag discharger, disposed within the slag trough, directly contacting the slag material and the sliding ram, characterized in that, The slag is pushed along the slag trough by the slide block; wear-resistant plates are laid on the inner wall of the slag trough, and multiple wear-resistant plates cover the inner wall of the slag trough; the wear-resistant plates are provided with welding parts; the welding parts are plug-welded to the slag trough; the wear-resistant plates are plug-welded to the slag trough through the welding parts.

2. The wear-resistant structure of the slag discharger as described in claim 1, characterized in that: The wear-resistant plate has a thickness of 12mm.

3. The wear-resistant structure of the slag discharger as described in claim 2, characterized in that: The welding section has a welding hole, and the welding hole is connected to the slag tank by plug welding.

4. The wear-resistant structure of the slag discharger as described in claim 1, characterized in that: A gap of 4mm-5mm is left between adjacent wear-resistant plates.

5. The wear-resistant structure of the slag discharger as described in claim 1, characterized in that: The wear-resistant plate is a rectangular plate.

6. The wear-resistant structure of the slag discharger as described in claim 5, characterized in that: The welding section is provided in four parts, which are located at the four top corners of the wear-resistant plate.

7. The wear-resistant structure of the slag discharger as described in claim 1, characterized in that: The bottom of the slag trough is also provided with a wear-resistant guide rail; after the bottom of the slag trough is laid with a wear-resistant plate, the wear-resistant guide rail is plug-welded to the wear-resistant plate.

8. The wear-resistant structure of the slag discharger as described in claim 1, characterized in that: Along the sliding direction of the slag, the direction in which the slag begins to slide is the first direction, and the direction in which the slag slides is the second direction; a first limiting part is extended from the lower outer edge of the wear-resistant plate in the first direction; a second limiting part is extended from the upper outer edge of the wear-resistant plate in the second direction; after the wear-resistant plates are laid, between adjacent wear-resistant plates, the second limiting part of the wear-resistant plate in the first direction is located above the first limiting part of the wear-resistant plate in the second direction.

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