An automatic slag removal device for the bottom of a heat treatment furnace.

Abstract

This utility model discloses an automatic slag-removing furnace bottom device for heat treatment furnaces, including a scraping mechanism installed on the inner side of the furnace wall for scraping stubborn impurities adhering to the furnace bottom, and a scraping mechanism for removing impurities under the scraper. A reciprocating mechanism is installed on the outer side of the furnace wall to enable the scraping and scraping mechanisms to reciprocate within the furnace wall. The reciprocating mechanism includes a sliding seat, with a Y-shaped connecting rod fixedly connected to the lower surface of the sliding seat. The scraping mechanism includes a protrusion and a scraper plate, with the scraper plate movably connected to the lower end of the Y-shaped connecting rod. A notch is provided on the lower surface of the scraper plate, and rollers are rotatably connected to both sides of the scraper plate via an installation structure. This utility model, through its scraping mechanism, effectively scrapes and removes stubborn slag adhering to the furnace bottom, significantly improving cleaning efficiency and reducing tool damage.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment furnace technology, and in particular to an automatic slag removal device for the bottom of a heat treatment furnace. Background Technology

[0002] A heat treatment furnace is a device used to heat-treat metallic materials. Through processes such as heating, holding, and cooling, it alters the internal structure of the material, thereby improving its mechanical, physical, and chemical properties. Heat treatment furnaces are widely used in industries such as steel, non-ferrous metals, machinery manufacturing, and aerospace for heat treatment processes such as quenching, annealing, tempering, and normalizing. They are indispensable equipment in metal processing. There are many types of heat treatment furnaces, including box furnaces, pit furnaces, bogie furnaces, and salt bath furnaces, selected and designed according to different process requirements and material characteristics.

[0003] In the field of existing heat treatment technology, traditional heat treatment furnaces often accumulate impurities such as scale and slag on their furnace bottoms during long-term use. This adhesion not only affects the thermal efficiency of the furnace but can also lead to a decline in product quality. However, due to the material and structure of the furnace bottom, these impurities are often difficult to clean completely. Currently, the common cleaning method involves directly scraping them off with a scraper, but this method is not only inefficient but also prone to damage or even breakage of the scraper, increasing maintenance costs and operational inconvenience. Utility Model Content

[0004] One objective of this invention is to provide an automatic slag removal device for the bottom of a heat treatment furnace. This invention addresses the problem mentioned in the background that using a scraper to directly remove slag is not only inefficient but also prone to damage or even breakage of the scraper, increasing maintenance costs and operational inconvenience.

[0005] An automatic slag-removing furnace bottom device according to an embodiment of the present invention includes a scraping mechanism installed on the inner side of the furnace wall for scraping stubborn impurities adhering to the furnace bottom and a scraping mechanism for removing impurities under the scraper. A reciprocating mechanism is installed on the outer side of the furnace wall for realizing the reciprocating movement of the scraping mechanism and the scraping mechanism on the inner wall of the furnace. The reciprocating mechanism includes a sliding seat, and a Y-shaped connecting rod is fixedly connected to the lower surface of the sliding seat. The scraping mechanism includes a protrusion and a scraper plate. The scraper plate is movably connected to the lower end of the Y-shaped connecting rod. A notch is opened on the lower surface of the scraper plate. Rollers are rotatably connected to both sides of the scraper plate through an installation structure. The protrusion is fixedly connected to the inner surface of the furnace wall.

[0006] Preferably, the lower surface of the Y-shaped connecting rod is provided with a groove, a sliding rod is slidably connected inside the groove, a slider is slidably connected to the surface of the sliding rod, and the scraper is fixedly connected to the lower surface of the slider.

[0007] Preferably, the scraping mechanism includes a scraper, which is fixedly connected to the lower end of the Y-shaped connecting rod by fixing screws.

[0008] Preferably, a drive motor is slidably connected to the inner side of the sliding seat, and a rotating gear is driven to the output end of the drive motor.

[0009] Preferably, a meshing rod is fixedly connected to the outer surface of the furnace wall, a slide rail is provided on the outer surface of the furnace wall, the rotating gear is movably connected inside the slide rail, and the rotating gear and the meshing rod mesh with each other.

[0010] Preferably, a first limiting groove is provided on the lower outer side of the furnace wall, and a first limiting block is fixedly connected to the lower side of one side of the sliding seat. The first limiting block is slidably connected inside the first limiting groove.

[0011] Preferably, a second limiting groove is provided on the upper inner side of the furnace wall, and a second limiting block is fixedly connected to the upper side of one side of the sliding seat, with the second limiting block slidably connected inside the second limiting groove.

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

[0013] This utility model, through its designed scraper mechanism, removes slag from the bottom of a heat treatment furnace via a furnace body device. A reciprocating mechanism causes the scraping and scraper mechanisms to slide simultaneously within the furnace body. During this sliding process, when the roller contacts the protruding part of the protrusion, the scraper plate moves to one side; when the roller contacts the recessed part of the protrusion, the scraper plate moves to the other side. The special shape of the protrusion and recess of the protrusion enables the continuous reciprocating movement of the scraper plate. The notch on the lower surface of the scraper plate scrapes and removes stubborn slag adhering to the furnace bottom, significantly improving cleaning efficiency and reducing tool damage.

[0014] This invention utilizes a reciprocating mechanism. A drive motor drives a rotating gear, which meshes with a meshing rod, causing the sliding seat to reciprocate on the outer surface of the furnace wall. When the gear reaches the leftmost or rightmost meshing rod, it rotates around the rod and slides in the opposite direction. The continuous rotation of the gear enables the reciprocating movement of the scraping and scraping mechanisms, effectively scraping and removing stubborn impurities from the furnace bottom. Furthermore, the drive motor is mounted on the outer side of the furnace wall, unaffected by residual heat from inside the furnace. This continuous reciprocating movement of the scraping and scraping mechanisms on the outer side of the furnace wall effectively scrapes and removes stubborn impurities from the furnace bottom while avoiding the impact of residual heat from inside the furnace on the drive motor, thus improving cleaning efficiency and equipment stability. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the structure of an automatic slag removal furnace bottom device for a heat treatment furnace proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the scraping mechanism in the furnace bottom device of an automatic slag removal heat treatment furnace proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the scraper mechanism in the furnace bottom device of an automatic slag removal heat treatment furnace proposed in this utility model.

[0019] Figure 4 This utility model proposes an automatic slag removal furnace bottom device for heat treatment furnaces. Figure 3 Enlarged view of point A in the middle;

[0020] In the diagram: 1. Furnace wall; 2. Reciprocating mechanism; 21. Slide rail; 22. Engaging rod; 23. Sliding seat; 24. Drive motor; 25. Rotating gear; 26. First limiting groove; 27. First limiting block; 28. Second limiting groove; 29. ​​Second limiting block; 3. Y-shaped connecting rod; 4. Scraping mechanism; 41. Fixing screw; 42. Scraper; 5. Scraper mechanism; 51. Slide groove; 52. Slide rod; 53. Slider; 54. Mounting structure; 55. Roller; 56. Protrusion; 57. Scraper plate; 58. Notch. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0022] refer to Figure 1-4 An automatic slag-removing furnace bottom device for a heat treatment furnace includes a scraping mechanism 5 installed on the inner side of the furnace wall 1 for scraping stubborn impurities adhering to the furnace bottom, and a scraping mechanism 4 for removing impurities under the scraper. A reciprocating mechanism 2 is installed on the outer side of the furnace wall 1 to enable the scraping mechanism 5 and the scraping mechanism 4 to reciprocate within the furnace wall. The reciprocating mechanism 2 includes a sliding seat 23, with a Y-shaped connecting rod 3 fixedly connected to the lower surface of the sliding seat 23. The scraping mechanism 5 includes a protrusion 56 and a scraper plate 57. The scraper plate 57 is movably connected to the lower end of the Y-shaped connecting rod 3. A notch 58 is provided on the lower surface of the scraper plate 57. Rollers 5 are rotatably connected to both sides of the scraper plate 57 via an installation structure 54. 5. The protrusion 56 is fixedly connected to the inner surface of the furnace wall 1. When the furnace body device removes the slag at the bottom of the heat treatment furnace, the scraping mechanism 4 and the scraper mechanism 5 slide simultaneously in the furnace body through the reciprocating mechanism 2. During the sliding process, when the roller 55 contacts the protruding position of the protrusion 56, the scraper plate 57 moves to one side. When the roller 55 contacts the recessed position of the protrusion 56, the scraper plate 57 moves to the other side. The special shape of the protrusion and recess of the protrusion 56 enables the continuous reciprocating movement of the scraper plate 57. The notch 58 on the lower surface of the scraper plate 57 scrapes and removes the stubborn slag adhering to the bottom of the furnace, which significantly improves the cleaning efficiency and reduces tool damage.

[0023] Example 1: A groove 51 is provided on the lower surface of the Y-shaped connecting rod 3. A sliding rod 52 is slidably connected inside the groove 51. A slider 53 is slidably connected to the surface of the sliding rod 52. A scraper plate 57 is fixedly connected to the lower surface of the slider 53. The scraping mechanism 4 includes a scraper plate 42, which is fixedly connected to the lower end of the Y-shaped connecting rod 3 by a fixing screw 41.

[0024] Example 2: A drive motor 24 is slidably connected to the inner side of the sliding seat 23. A rotating gear 25 is driven to the output end of the drive motor 24. A meshing rod 22 is fixedly connected to the outer surface of the furnace wall 1. A slide rail 21 is provided on the outer surface of the furnace wall 1. The rotating gear 25 is movably connected inside the slide rail 21, and the rotating gear 25 and the meshing rod 22 mesh with each other. A first limiting groove 26 is provided on the lower outer side of the furnace wall 1. A first limiting block 27 is fixedly connected to the lower side of one side of the sliding seat 23. The first limiting block 27 is slidably connected inside the first limiting groove 26. A second limiting groove 28 is provided on the upper inner side of the furnace wall 1. A second limiting block 29 is fixedly connected to the upper side of one side of the sliding seat 23. The second limiting block 29 is slidably connected inside the second limiting groove 28. Motor 24 drives rotating gear 25 to rotate. Rotating gear 25 and meshing rod 22 mesh with each other, causing sliding seat 23 to reciprocate on the outer surface of furnace wall 1. When it moves to the leftmost or rightmost meshing rod 22, rotating gear 25 rotates around the meshing rod 22 and slides in the opposite direction. The continuous rotation of rotating gear 25 realizes the reciprocating movement of scraping mechanism 4 and scraper mechanism 5, which scrapes and removes stubborn impurities on the furnace bottom. Moreover, the drive motor 24 is installed on the outside of furnace wall 1 and is not affected by the residual heat inside the furnace. This realizes the continuous reciprocating movement of scraping mechanism 4 and scraper mechanism 5 on the outside of furnace wall 1, effectively scraping and removing stubborn impurities on the furnace bottom, while avoiding the influence of residual heat inside the furnace on drive motor 24, thus improving cleaning efficiency and equipment stability.

[0025] In operation, the drive motor 24 installed on the outer side of the furnace wall 1 starts to run, and the rotating gear 25 connected to its output end rotates accordingly. The rotating gear 25 meshes with the meshing rod 22 fixed on the outer surface of the furnace wall 1, forming a reciprocating mechanism 2. The sliding seat 23 moves reciprocally along the slide rail 21 on the outer surface of the furnace wall 1 under the drive of the rotating gear 25. The movement of the sliding seat 23 is constrained by the limiting grooves and limiting blocks on both sides to ensure the accuracy and stability of its movement trajectory. A Y-shaped connecting rod 3 is fixedly connected to the lower surface of the sliding seat 23. The lower end of the connecting rod is movably connected to a scraper plate 57. The lower surface of the scraper plate 57 has a notch 58 for scraping stubborn slag adhering to the bottom of the furnace. Rollers 55 are rotatably connected to both sides of the scraper plate 57 through the mounting structure 54. These rollers 55 are fixed to the furnace wall 1. The protrusions 56 on the inner surface of the wall 1 are in contact with each other. When the roller 55 contacts the protruding part of the protrusion 56, the scraper 57 moves to one side; when the roller 55 contacts the recessed part of the protrusion 56, the scraper 57 moves to the other side. Through the special shape design of the protrusion 56, the scraper 57 can move continuously back and forth, thereby effectively scraping and removing stubborn impurities from the bottom of the furnace. As the scraper 57 moves back and forth, the scraper 42 effectively removes the impurities under the scraper. In the whole device, the drive motor 24 is installed on the outside of the furnace wall 1, avoiding the influence of residual heat in the furnace on its operation, ensuring the continuous and stable operation of the device, realizing automatic and efficient cleaning of stubborn impurities at the bottom of the heat treatment furnace, significantly improving cleaning efficiency and reducing tool damage, and improving the overall performance and stability of the equipment.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic slag-removing furnace bottom device for heat treatment furnaces, characterized in that, The furnace wall (1) includes a scraping mechanism (5) installed on the inner side of the furnace wall (1) for scraping stubborn impurities adhering to the furnace bottom and a scraping mechanism (4) for removing impurities under the scraper. The outer side of the furnace wall (1) is equipped with a reciprocating mechanism (2) for realizing the reciprocating movement of the scraping mechanism (5) and the scraping mechanism (4) on the inner wall of the furnace. The reciprocating mechanism (2) includes a sliding seat (23). A Y-shaped connecting rod (3) is fixedly connected to the lower surface of the sliding seat (23). The scraping mechanism (5) includes a protrusion (56) and a scraper plate (57). The scraper plate (57) is movably connected to the lower end of the Y-shaped connecting rod (3). A notch (58) is opened on the lower surface of the scraper plate (57). Rollers (55) are rotatably connected to both sides of the scraper plate (57) through the mounting structure (54). The protrusion (56) is fixedly connected to the inner surface of the furnace wall (1).

2. The automatic slag removal furnace bottom device for heat treatment furnace according to claim 1, characterized in that, The lower surface of the Y-shaped connecting rod (3) is provided with a groove (51), a sliding rod (52) is slidably connected inside the groove (51), a slider (53) is slidably connected to the surface of the sliding rod (52), and the scraper plate (57) is fixedly connected to the lower surface of the slider (53).

3. The automatic slag-removing furnace bottom device for heat treatment furnace according to claim 1, characterized in that, The scraping mechanism (4) includes a scraper (42), which is fixedly connected to the lower end of the Y-shaped connecting rod (3) by a fixing screw (41).

4. The automatic slag-removing furnace bottom device for heat treatment furnace according to claim 1, characterized in that, The inner side of the sliding seat (23) is slidably connected to a drive motor (24), and the output end of the drive motor (24) is connected to a rotating gear (25).

5. The automatic slag-removing furnace bottom device for a heat treatment furnace according to claim 4, characterized in that, A meshing rod (22) is fixedly connected to the outer surface of the furnace wall (1), and a slide rail (21) is provided on the outer surface of the furnace wall (1). The rotating gear (25) is movably connected inside the slide rail (21), and the rotating gear (25) and the meshing rod (22) mesh with each other.

6. The automatic slag removal furnace bottom device for heat treatment furnace according to claim 1, characterized in that, The lower outer side of the furnace wall (1) is provided with a first limiting groove (26), and the lower side of the sliding seat (23) is fixedly connected with a first limiting block (27), which is slidably connected inside the first limiting groove (26).

7. The automatic slag-removing furnace bottom device for heat treatment furnace according to claim 1, characterized in that, The upper inner side of the furnace wall (1) is provided with a second limiting groove (28), and the upper side of the sliding seat (23) is fixedly connected with a second limiting block (29), which is slidably connected inside the second limiting groove (28).

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