Steel ladle opening slag removal device and slag removal device

Abstract

The utility model relates to a steel ladle mouth slag removal device and a slag removal device, which comprise a slag guide piece and a slag receiving basin, the slag guide piece is provided with a guide plate arranged around the circumference of the guide piece, the guide plate is inclined towards the upper part of the opening of the slag receiving basin, the bottom of the slag guide piece is provided with a base, the slag receiving basin is arranged on the base, and the slag receiving basin comprises at least two basin bodies. The plurality of basin bodies have upward openings and can be tightly spliced around the periphery of the slag guide piece; after the steel ladle is obliquely and inversely hung and the ladle opening faces downwards, the slag removal device does not move, the steel ladle is controlled to move in the three-dimensional direction or change the inclination angle, the slag guide piece stretching into the ladle opening of the steel ladle slightly collides with the steel slag, a circle of steel slag on the ladle opening is rapidly removed, and the peeled steel slag can slide downwards along the inclined guide plate on the slag guide piece and directly fall into the slag receiving basin. After slag removal is finished, the pot body can be directly taken down from the base through a forklift for slag pouring, the overall structure is simple, use is convenient, the operation efficiency and safety of ladle opening slag removal can be improved, and the cleaning effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of ladle cleaning, and particularly relates to a slag cleaning device and a slag cleaning device for the ladle opening. Background Technique

[0002] As a device for receiving molten steel in front of an electric furnace or a converter and performing pouring operations, the ladle can be hoisted on a moving device by using a hook - off type or a bearing type gantry structure for operations such as moving, tilting, and pouring. Since the ladle moves continuously during processes such as converter smelting, refining, and continuous casting, when the ladle shakes or tilts the molten steel, the molten steel inside is likely to splash onto the ladle opening and form adhering slag. The accumulation of adhering slag will lead to problems such as an increase in the hoisting load of the ladle, hindering slag dumping, affecting the lining life of the ladle, and the smooth operation of the ladle. Therefore, after the molten steel ladle in steelmaking has poured out the remaining slag, it is necessary to clean the solidified steel slag at the ladle opening. Due to the steel slag adhering to the surface of the ladle opening, it is very difficult to handle the remaining slag at the ladle opening. The traditional slag cleaning method is to keep the ladle opening facing upwards and use a steel structure to move up, down, left, and right to scrape the steel slag at the ladle opening, and then overturn the ladle to pour out the scraped steel slag. Its defects are as follows: First, the contact surface between the steel hook and the ladle opening is small, and the collision force is insufficient. It is necessary to move the steel hook little by little and hook the steel slag to release the adhesion, resulting in low operation efficiency, great operation difficulty, and poor cleaning effect; Second, during the cleaning process, some steel slag is likely to fall outside the ladle when it falls off from the ladle opening. And because the steel slag is at a high temperature during cleaning, it is easy to bring potential safety risks, burn the ground, and cause secondary pollution to the operation environment when it falls aside, and manual cleaning is also required, affecting the operation efficiency; Third, since the ladle opening faces upwards, some steel slag during the cleaning process will fall inside the ladle, and it is also necessary to lift the ladle and then tilt it to pour out the remaining slag and load it into a bucket, which limits the operation efficiency.

[0003] Although some ladle opening slag cleaning devices or slag cleaning devices are disclosed in the prior art, mainly different forms of scrapers are set on the chassis. During slag cleaning, it remains stationary, and the relative movement of the ladle up, down, front, and back after hoisting is used to improve the slag cleaning efficiency. However, there will be certain errors during the moving operation of the ladle hoisting, which is easy to impact the slag cleaning device. The slag cleaning device is prone to displacement due to insufficient gravity, and the scraper is prone to force - induced deformation, which brings inconvenience to slag cleaning, affecting the service life and operation efficiency of the slag cleaning device. At the same time, since only the slag scraping function is improved and the ladle opening generally tilts upwards, the problems of secondary pollution and repeated slag dumping during the slag cleaning process cannot be solved, and urgent improvement is needed. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the above - mentioned technical problems to a certain extent. The utility model provides a slag cleaning device and a slag cleaning device for the ladle opening, which have a simple structure, are easy to use, are beneficial to improving the operation efficiency and safety of cleaning the remaining slag at the ladle opening, and have a good cleaning effect.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A slag cleaner for a ladle mouth comprises a slag guide and a slag receiving basin, wherein the slag guide is provided with a guide plate circumferentially arranged around the guide, the guide plate is inclined above an opening of the slag receiving basin, a base is provided at the bottom of the slag guide, the slag receiving basin is placed on the base, and the slag receiving basin comprises at least two basin bodies, a plurality of basin bodies have openings upward and can be tightly assembled around the outer circumference of the slag guide.

[0007] In a preferred embodiment, a needle portion is provided on the top of the slag guiding member.

[0008] In a preferred embodiment, the slag guiding member is cylindrical.

[0009] In a preferred embodiment, a plurality of angle ribs are provided between the slag guide member and the base and are spaced apart circumferentially around the slag guide member.

[0010] In a preferred embodiment, the basin body includes a recessed portion, which is located on the inner side below the guide plate. The recessed portion and the slag guide member are arranged to give way to each other, and the inner walls on both sides of the recessed portions of adjacent basin bodies fit each other.

[0011] In a preferred embodiment, a gap is provided between the bottom of the basin and the base.

[0012] In a preferred embodiment, a plurality of supporting feet are provided at the bottom of the basin.

[0013] A slag cleaning device for a ladle opening comprises a first hook, a second hook, and a slag cleaner for a ladle opening as described in any one of the above items, wherein the first hook and the second hook can move in three-dimensional directions.

[0014] In a preferred embodiment, the slag cleaning device comprises a longitudinal movable frame, a transverse movable trolley is provided on the longitudinal movable frame, and a lifting mechanism is provided between the first hook and the second hook and the transverse movable trolley respectively.

[0015] Compared with the prior art, the beneficial effects of the present invention are at least:

[0016] (1) After the ladle is tilted and hung upside down with the ladle mouth facing downward, the operator can directly observe the slag situation. The slag cleaner does not move, and the ladle is controlled to move in three dimensions or change the tilt angle, so that the slag guide inserted into the ladle mouth collides slightly with the slag, and the circle of slag on the ladle mouth is quickly removed, which can reduce the difficulty of operation and improve the operation efficiency.

[0017] (2) When cleaning slag, the assembled slag basin can completely surround the outer periphery of the slag guide, and the peeled slag can slide downward along the inclined guide plate on the slag guide and fall directly into the slag basin, avoiding secondary pollution. It is easy to use and can improve work efficiency and safety.

[0018] (3) When cleaning the steel slag, due to the self-weight of the slag receiving basin and the increased load after receiving the slag, it can prevent the displacement of the slag cleaner caused by the interaction between the ladle and the slag guiding member during the slag cleaning process, making the operation process safe and reliable.

[0019] (4) Since the slag receiving basin is composed of several basin bodies, after the slag cleaning is completed, the basin body can be directly removed from the base by a forklift for slag dumping, and then put back after the slag is dumped, which can avoid slag dumping for the ladle after cleaning in the prior art, improving the slag cleaning effect and efficiency.

[0020] (5) The overall structure is simple and easy to use. For example, the slag guiding member is cylindrical, which can simplify the installation and structure of the guiding plate. It is less likely to damage the ladle and the slag guiding member is not easily collided and deformed compared with the scraper structure, and has a longer service life. Description of the Drawings

[0021] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0022] Figure 1 is a perspective view of Embodiment 1 of the present utility model;

[0023] Figure 2 is an exploded view of Embodiment 1 of the present utility model;

[0024] Figure 3 is a front view of Embodiment 1 of the present utility model;

[0025] Figure 4 is a top view of Embodiment 1 of the present utility model;

[0026] Figure 5 is an application schematic diagram of Embodiment 2 of the present utility model;

[0027] Reference numerals in the drawings: slag guiding member 1, slag receiving basin 2, basin body 201, concave part 202, support foot 203;

[0028] Guiding plate 3, base 4, needle part 5, corner rib 6, gap 7;

[0029] First lifting hook 8, second lifting hook 9, longitudinal moving frame 10, transverse moving trolley 11, lifting mechanism 12, ladle 13, ladle mouth 14, articulated connecting rod 15, steel slag 16, Figure 5 The unmarked arrows in the figure indicate the direction of steel slag falling. Detailed Embodiments

[0030] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" and "several" mean two or more, unless otherwise specifically defined.

[0032] Embodiment 1:

[0033] Aiming at the problems of displacement, secondary pollution and insufficient efficiency existing in the slag cleaner during operation in the prior art, as Figures 1 to 4 shown, it is a preferred embodiment of the slag cleaner for the steel ladle mouth of the present utility model. The slag cleaner includes a slag guiding member 1 and a slag receiving basin 2. The slag guiding member 1 is provided with a guiding plate 3 arranged circumferentially around the guiding member. The guiding plate 3 is inclined upward above the opening of the slag receiving basin 2. The bottom of the slag guiding member 1 is provided with a base 4. The slag receiving basin 2 is placed on the base 4. The slag receiving basin 2 includes at least two basin bodies 201. The openings of several basin bodies 201 face upward and can be tightly fitted together around the outer periphery of the slag guiding member 1.

[0034] For example, the assembly method of the above-mentioned slag cleaner includes:

[0035] As Figure 2 shown, select a slag guiding member 1 made of hard metal such as steel and weld it to the center of the base 4 to fix the slag guiding member 1. Then weld the guiding plate 3 on the slag guiding member 1. As Figure 1 shown, finally, place several basin bodies 201 above the base 4 below the guiding plate 3. The openings of the basin bodies 201 face upward, and adjacent basin bodies 201 are in contact with each other and tightly fitted together until several basin bodies 201 are fitted together around the outer periphery of the slag guiding member 1 to form a complete slag receiving basin 2, and the assembly of the slag cleaner can be completed. As Figure 3 shown, after assembly, the guiding plate 3 is inclined upward above the openings of several basin bodies 201, i.e., the slag receiving basin 2.

[0036] Example 2:

[0037] As Figure 5 shown, it is a preferred embodiment of the slag cleaning device for the ladle mouth of the present utility model, including a first lifting hook 8, a second lifting hook 9, and the ladle mouth slag cleaning device as described in Example 1. The first lifting hook 8 and the second lifting hook 9 can move in three-dimensional directions.

[0038] The working principles of the above slag cleaning device and the slag cleaning device include:

[0039] As Figure 5 shown, place the slag cleaning device on the ground, and suspend the first lifting hook 8 and the second lifting hook 9 on the ladle 13 respectively. For example, connect the first lifting hook 8 to the ladle 13 and the second lifting hook 9 to the ladle 13 by means of a hinged connecting rod 15 or a lifting chain. The operator can adjust the height difference between the first lifting hook 8 and the second lifting hook 9 by lifting and lowering, so that the ladle 13 is inverted and tilted. The ladle mouth 14 of the ladle 13 is tilted downward and located above the slag guiding member 1 of the slag cleaning device. By the synchronous downward movement of the first lifting hook 8 and the second lifting hook 9, the ladle 13 is driven to descend while maintaining the tilted posture, so that the top of the slag guiding member 1 extends into the ladle mouth. Since the ladle 13 is suspended at a certain height and the ladle mouth 14 faces one side in the tilted posture, the operator on the ground can directly observe the situation of the steel slag 16. Move the first lifting hook 8 and the second lifting hook 9 separately or synchronously in the front-back, left-right, and up-down directions, and drive the ladle 13 to move in three-dimensional directions or change the tilting angle. After the steel slag 16 slightly collides with the side of the inserted slag guiding member 1, due to the mutual condensation of the high-temperature steel slag 16 and the extrusion force of the slag guiding member 1, the whole block can be lifted or directly broken and fallen.

[0040] For the slag 16 that does not fall off directly from the ladle mouth but tilts up after being collided, the operator can move the ladle 13 again to collide with the tilted slag 16 of the slag guiding member 1, and then the larger tilted slag 16 can be directly peeled off from the ladle mouth 14. Such a slight collision operation can quickly remove the slag 16 on the ladle mouth 14. And because the ladle mouth 14 faces downward, the peeled slag 16 can slide downward along the inclined guide plate 3 on the slag guiding member 1 and directly fall into the slag receiving basin 2 formed by splicing at least two basin bodies 201 for slag cleaning operation until all the slag 16 around the ladle mouth 14 is cleaned. First, the spliced slag receiving basin 2 can completely surround the outer periphery of the slag guiding member 1, which enables that during the slag 16 cleaning process, when the ladle 13 is cleaned at any position, the slag 16 with a certain weight and separated from the ladle mouth 14 can move along the guidance of the slag guiding member 1 and the guide plate 3 or directly fall into the slag receiving basin 2, instead of falling to the ground, which can avoid secondary pollution caused by the slag 16 falling off from the outside of the ladle 13 during the existing cleaning process and does not require manual cleaning, making the operation process safer. Second, because the slag receiving basin 2 is directly placed on the base 4 and has a certain weight, the load will increase after receiving slag, and the slag cleaner can be directly placed on the ground without anchoring the base 4 on the ground, which can prevent displacement caused by the interaction force between the ladle 13 and the slag guiding member 1 during the slag cleaning process, making the slag cleaning work more reliable. Third, this spliced slag receiving basin 2 is also a split structure. After the slag cleaning is completed, the basin body 201 can be directly removed from the base 4 by a forklift for slag dumping, and then put back after the slag is dumped, which can avoid slag dumping for the ladle 13 after cleaning compared with the traditional slag cleaning structure, thereby improving the slag cleaning effect and efficiency.

[0041] Further, a needle part 5 is provided at the top of the slag guiding member 1; for example: as Figures 1 to 5 shown, the needle part 5 can adopt a columnar shape with a smaller diameter. When the larger slag 16 tilts up from the ladle mouth 14, the needle part 5 can be inserted between the slag 16 to be peeled and the ladle mouth 14, and the arc-shaped slag 16 can be lifted by the needle part 5 for quick peeling, which is more convenient for operation.

[0042] Further, the slag guiding member 1 is columnar, and its advantages include: First, the guide plate 3 can be quickly welded and connected around the outer circle of the slag guiding member 1. The guide plate 3 can adopt a bucket-shaped structure, which can simplify the installation and structure of the guide plate 3. Second, compared with the scraper structure, the structure is simpler, and the contact surface between the columnar slag guiding member 1 and the slag 16 at the ladle mouth 14 is larger. When slightly colliding with the slag 16, it will not cause shear force damage to the ladle 13 due to excessive force, and the slag 16 can be contacted at any position. At the same time, the slag guiding member 1 itself is not easily collided and deformed compared with the scraper, making the service life of the slag cleaner longer.

[0043] Further, a plurality of angle ribs 6 are provided between the slag guiding member 1 and the base 4 at intervals along the circumferential direction of the slag guiding member 1; for example: as Figure 2As shown, the base 4 is in the shape of a flat plate, the bottom of the cylindrical slag guide 1 is vertically welded to the center of the base 4, the corner ribs 6 are selected from right-angled triangles made of hard metal materials such as steel, the corner ribs 6 and the slag guide 1, the corner ribs 6 and the base 4 are connected by welding, and multiple corner ribs 6 are welded at intervals around the slag guide 1 to improve the connection strength and deformation resistance of the slag guide 1 and the base 4.

[0044] Furthermore, the basin body 201 includes a recess 202, which is located on the inner side below the guide plate 3. The recess 202 and the slag guide member 1 are arranged to give way to each other, and the inner walls on both sides of the recesses 202 of adjacent basin bodies 201 fit each other; for example: Figure 2 As shown, when there are two basin bodies 201, the recessed portion 202 may adopt a semicircular structure, such as Figure 3 As shown, the inner wall of the recess 202 can contact the corner rib 6 to quickly locate the installation of the corresponding basin body 201, such as Figure 1 As shown, the inner walls of the concave portion 202 of one basin body 201 can be fitted with the inner walls of the concave portion 202 of another basin body 201, such as Figure 4 As shown, the concave portions 202 of the two basin bodies 201 can form a circular structure in the guide plate 3 when assembled, which is convenient for quick assembly of the slag receiving basin 2 and for removing the two basin bodies 201 from both sides of the slag cleaner for slag removal.

[0045] like Figure 3 As shown, further, a gap 7 is provided between the bottom of the basin body 201 and the base 4, and its advantages include: 1. Leaving a certain gap 7 can help dissipate heat, and prevent the basin body 201 from catching the high-temperature slag 16 and transferring heat to a large area of ​​the base 4, thereby causing the ground to heat up, which is not good for the working environment; 2. It is more convenient for the fork arm of the forklift to extend from the gap 7, directly lift the basin body 201, and remove the basin body 201 to dump the slag.

[0046] like Figure 3 As shown, further, a plurality of supporting feet 203 are provided at the bottom of the basin body 201. For example, the supporting feet 203 can be supported on the base 4 to form a gap 7 between the bottom of the basin body 201 and the base 4, which is also convenient for simplifying the structure of the basin body 201 and the base 4.

[0047] like Figure 5 As shown, further, the slag cleaning device includes a longitudinal moving frame 10, on which a transverse moving trolley 11 is provided, and a lifting mechanism 12 is provided between the first hook 8 and the second hook 9 and the transverse moving trolley 11 respectively. For example: the longitudinal moving frame 10 is arranged on a longitudinal track through pulleys and the like to move forward and backward, and the transverse moving trolley 11 can move left and right on the longitudinal track. The lifting mechanism 12 can use a winch device and the like to drive the first hook 8 or the second hook 9 to lift and move, thereby realizing the movement of the first hook 8 and the second hook 9 in three-dimensional directions.

[0048] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present utility model, and they are not intended to limit the protection scope of the present utility model. Any equivalent embodiments or modifications made without departing from the technical spirit of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A slag cleaning device for the opening of a ladle, characterized in that, It includes a slag guiding member (1) and a slag receiving basin (2). The slag guiding member (1) is provided with a guiding plate (3) arranged circumferentially around the guiding member. The guiding plate (3) inclines upward above the opening of the slag receiving basin (2). The bottom of the slag guiding member (1) is provided with a base (4). The slag receiving basin (2) is placed on the base (4). The slag receiving basin (2) includes at least two basin bodies (201). The openings of several basin bodies (201) face upward and can be closely joined together around the outer periphery of the slag guiding member (1).

2. The slag cleaning device for the ladle mouth according to claim 1, wherein The top of the slag guiding member (1) is provided with a needle part (5).

3. The slag cleaning device for the ladle mouth according to claim 1, characterized in that, The slag guiding member (1) is cylindrical in shape.

4. The slag cleaning device for the ladle mouth according to claim 1, wherein A number of angle ribs (6) are arranged at intervals circumferentially around the slag guiding member (1) between the slag guiding member (1) and the base (4).

5. The slag cleaning device for the ladle mouth according to claim 1, characterized in that, The basin body (201) includes a concave part (202). The concave part (202) is located inside and below the guiding plate (3). The concave part (202) is arranged with clearance from the slag guiding member (1). The inner walls on both sides of the concave part (202) of adjacent basin bodies (201) are in contact with each other.

6. The slag cleaning device for the ladle mouth according to claim 1, characterized in that There is a gap (7) between the bottom of the basin body (201) and the base (4).

7. The slag cleaning device for the ladle mouth according to claim 1, wherein The bottom of the basin body (201) is provided with a number of support feet (203).

8. A slag cleaning device for the ladle mouth, characterized in that It includes a first lifting hook (8), a second lifting hook (9), and a ladle mouth slag cleaner according to any one of claims 1 to 7. The first lifting hook (8) and the second lifting hook (9) can move in three-dimensional directions.

9. The slag cleaning device for the ladle mouth according to claim 8, wherein, It includes a longitudinal moving frame (10). A transverse moving trolley (11) is arranged on the longitudinal moving frame (10). Lifting mechanisms (12) are respectively arranged between the first lifting hook (8) and the second lifting hook (9) and the transverse moving trolley (11).

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