Device for cleaning ladle mouth slag of steel ladle

Abstract

The utility model discloses a device for cleaning ladle mouth slag of a steel ladle, comprising a fixed bottom plate which is horizontally arranged and is arranged at a position close to the steel ladle on the ground; the lower end of the cleaning supporting vertical plate is fixedly connected with the upper side of the fixed bottom plate, and the upper end of the cleaning supporting vertical plate extends upwards; the cleaning horizontal plate is horizontally arranged, the lower side of one end of the cleaning horizontal plate is fixedly connected with the upper end of the cleaning supporting vertical plate, and the other end of the cleaning horizontal plate is used for rubbing the outer edge of the steel ladle opening, so that steel slag attached to the outer edge of the steel ladle opening becomes loose after being rubbed, and the other end of the cleaning horizontal plate extends into the steel ladle to stir and break the steel slag accumulated at the steel ladle opening; the steel slag accumulated at the opening of the steel ladle flows out of the steel ladle; the device can shorten the treatment time of steel slag adhesion at the ladle mouth of the steel ladle, improve the treatment efficiency, reduce the energy consumption and improve the quality of molten steel.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel smelting, and in particular relates to a device for cleaning slag at the ladle opening. Background Art

[0002] During the steelmaking process, the ladle, a crucial container for carrying, transporting, and smelting molten steel, often accumulates slag on its mouth due to process operations. Traditionally, scraping the ladle mouth is a treatment method. This requires multiple steps, including removing the ladle lid, pressing the slag, replacing the ladle lid, and placing the ladle in the ladle. This process is repetitive, making it difficult to operate, time-consuming, and ineffective.

[0003] Existing technology remains limited to improving traditional slag pressing, requiring close coordination between the crane and ground control personnel. The process is time-consuming and ineffective. Furthermore, the slag produced during the slag pressing process requires secondary slag disposal, increasing workload and energy consumption. This fails to fundamentally address the issue of slag adhesion, and is plagued by long processing times and low efficiency. Consequently, existing technologies suffer from long slag adhesion processing times, low efficiency, high energy consumption, difficult crane operation, and compromised molten steel quality. Utility Model Content

[0004] The purpose of the utility model is to provide a device for cleaning the ladle mouth slag, so as to solve the problems in the prior art of low efficiency, high energy consumption, difficult driving operation and affected molten steel quality when treating the slag attached to the ladle mouth.

[0005] The utility model adopts the following technical solution: a device for cleaning slag at the ladle opening, comprising:

[0006] The fixed bottom plate is set horizontally and placed on the ground near the ladle;

[0007] The cleaning support vertical plate is arranged vertically, with its lower end fixedly connected to the upper side of the fixed bottom plate and its upper end extending upward;

[0008] The cleaning horizontal plate is arranged horizontally, and the lower side of one end thereof is fixedly connected to the upper end of the cleaning support vertical plate, and the other end thereof is used for rubbing the outer edge of the ladle mouth, so that the slag attached to the outer edge of the ladle mouth becomes loose after the friction, so that the other end can be extended into the ladle to move and break the slag accumulated at the ladle mouth, thereby allowing the slag accumulated at the ladle mouth to flow out of the ladle.

[0009] Furthermore, it also includes:

[0010] The slag holding pot is placed on the upper side of the fixed bottom plate. It is a funnel-shaped container with an open top and is used to receive the steel slag cleaned from the ladle mouth.

[0011] Furthermore, the cleaning support vertical plate includes a bottom vertical plate and a top vertical rod, both of which are arranged vertically. The lower end of the bottom vertical plate is fixedly connected to the upper side of the fixed bottom plate, and its upper end is integrally connected to the lower end of the top vertical rod, and the upper end of the top vertical rod is fixedly connected to the lower side of the cleaning horizontal plate.

[0012] Furthermore, a plurality of reinforcing steel plates are provided between the top vertical pole and the cleaning horizontal plate.

[0013] Furthermore, the distance between the cleaning horizontal plate and the slag pot is greater than half of the ladle opening diameter.

[0014] Furthermore, a cleaning horizontal plate is arranged on a side close to the slag pot.

[0015] Furthermore, the cleaning horizontal plate is a rectangular parallelepiped, one long side of the cleaning horizontal plate is fixedly connected to the top vertical pole, and the other long side is used to extend into the ladle mouth to move the slag accumulated at the ladle mouth; the length of the long side of the cleaning horizontal plate is 1 / 4-1 / 5 of the diameter of the ladle mouth.

[0016] Furthermore, the length of the short side of the cleaning horizontal plate is less than the vertical distance between the steel cover and the ladle opening when the opening angle between the steel cover and the ladle opening is 30 degrees.

[0017] Furthermore, the thickness of the cleaning horizontal plate is 1 / 4-1 / 5 of the short side of the cleaning horizontal plate.

[0018] The beneficial effects of the utility model are:

[0019] The utility model can shorten the processing time of the steel slag adhering to the ladle mouth, improve the processing efficiency, reduce energy consumption, and improve the quality of molten steel;

[0020] The utility model can cooperate with the crane operation, and the ladle mouth slag can be quickly processed by simply operating the crane to control the tilting amplitude and height of the ladle; it replaces the traditional method of removing the ladle mouth slag by pressing the slag;

[0021] The utility model can remove the steel slag at the ladle mouth from a long distance, reduces the labor intensity of workers and improves production safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the present utility model.

[0023] Among them: 10. Fixed bottom plate; 11. Cleaning support vertical plate; 12. Cleaning horizontal plate; 13. Slag tank; 14. Bottom vertical plate; 15. Top vertical pole; 16. Reinforcement steel plate. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. The "direction" in the present invention is based on the position of the present invention in the direction of the present invention. Figure 1 Description of the direction of the state.

[0026] The utility model discloses a device for cleaning slag at the ladle opening, such as Figure 1 As shown, the cleaning device includes: a fixed bottom plate 10, a cleaning support vertical plate 11, and a cleaning horizontal plate 12.

[0027] The fixed base plate 10 is arranged horizontally and is placed on the ground near the ladle; the cleaning support vertical plate 11 is arranged vertically, the lower end of the cleaning support vertical plate 11 is fixedly connected to the upper side of the fixed base plate 10, and the upper end of the cleaning support vertical plate 11 extends upward.

[0028] The cleaning horizontal plate 12 is arranged horizontally, and the lower side of one end of the cleaning horizontal plate 12 is fixedly connected to the upper end of the cleaning support vertical plate 11, and the other end of the cleaning horizontal plate 12 is used to rub the outer edge of the ladle mouth, so that the steel slag attached to the outer edge of the ladle mouth becomes loose after friction, so that the other end can be extended into the ladle to move and break the steel slag accumulated at the ladle mouth, thereby allowing the steel slag accumulated at the ladle mouth to flow out of the ladle.

[0029] The cleaning device further includes a slag holding tank 13 , which is placed on the upper side of the fixed bottom plate 10 . The slag holding tank 13 is a funnel-shaped container with an open top, and is used to receive the slag cleaned from the ladle opening.

[0030] The cleaning support vertical plate 11 includes a bottom vertical plate 14 and a top vertical rod 15, both of which are vertically arranged. The lower end of the bottom vertical plate 14 is fixedly connected to the upper side of the fixed base plate 10, the upper end of the bottom vertical plate 14 is integrally connected to the lower end of the top vertical rod 15, and the upper end of the top vertical rod 15 is fixedly connected to the lower side of the cleaning horizontal plate 12.

[0031] The distance between the cleaning horizontal plate 12 and the slag pot 13 is greater than half the diameter of the ladle opening; the cleaning horizontal plate 12 is arranged on a side close to the slag pot 13.

[0032] The cleaning horizontal plate 12 is a rectangular parallelepiped, and one long side of the cleaning horizontal plate 12 is fixedly connected to the top vertical rod 15, and the other long side of the cleaning horizontal plate 12 is used to extend into the ladle mouth to stir the slag accumulated at the ladle mouth; the length of the long side of the cleaning horizontal plate 12 is 1 / 4-1 / 5 of the diameter of the ladle mouth; the length of the short side of the cleaning horizontal plate 12 is less than the vertical distance between the steel cover and the ladle mouth when the opening between the steel cover and the ladle mouth is 30 degrees; the thickness of the cleaning horizontal plate 12 is 1 / 4-1 / 5 of the short side of the cleaning horizontal plate 12.

[0033] The length of the long side of the cleaning horizontal plate 12 is controlled so that the cleaning horizontal plate 12 can be extended into the ladle mouth. If it is too long, the slag near the lower inner wall of the ladle mouth cannot be crushed or broken; the length of the short side of the cleaning horizontal plate 12 is controlled so that when the ladle inclination angle is minimum and the ladle steel cover is not removed, the vertical distance between the steel cover and the ladle mouth is sufficient to accommodate the short side of the cleaning horizontal plate 12 when the steel cover is opened and maintained at a 30-degree opening with the ladle mouth, thereby allowing the long side of the cleaning horizontal plate 12 to extend into the ladle for operation; the thickness of the cleaning horizontal plate 12 is controlled to avoid affecting the slag breaking effect after the thickness is too large; the distance between the cleaning horizontal plate 12 and the slag pot 13 is controlled to ensure that when the cleaning horizontal plate 12 is extended into the ladle mouth, the slag pot 13 does not touch the ladle mouth, thereby interfering with the extension of the cleaning horizontal plate 12 into the ladle mouth.

[0034] The method of using the utility model is as follows:

[0035] Use the crane to lift the ladle and pour out the slag in the ladle;

[0036] Place the cleaning device on the ground below the ladle;

[0037] The crane is used to control the outer edge of the ladle mouth to approach the cleaning horizontal plate 12 of the cleaning device, and the outer edge of the ladle mouth is controlled to move back and forth while maintaining friction with the cleaning horizontal plate 12, so that the cleaning horizontal plate 12 and the slag attached to the outer edge of the ladle mouth due to the dumping of slag are rubbed, and the attached slag is forced to loosen and fall off.

[0038] The ladle is controlled by a crane so that the cleaning horizontal plate 12 is extended into the ladle mouth, and the ladle is moved while keeping the cleaning horizontal plate 12 extended into the ladle mouth, so that the cleaning horizontal plate 12 moves and breaks the slag accumulated at the ladle mouth, thereby allowing the slag at the ladle mouth to flow out of the ladle and into the slag holding tank 13 of the cleaning device.

[0039] The movement of the ladle is achieved by controlling the horizontal position and tilt angle of the ladle.

[0040] Example 1

[0041] In order to ensure safe and smooth production, a steel mill requires that the ladle mouth slag be treated 6 times per shift, each time reducing driving time by 6.6 minutes, reducing the ladle temperature drop by 6°C, driving electricity consumption by 3 yuan / min, and the gas cost of 30 yuan / °C for each 1°C increase in the temperature of a 150-ton ladle; therefore, the steel mill has problems such as low efficiency, high energy consumption, difficult driving operation, and affected molten steel quality when treating the ladle mouth slag adhesion. The use of the utility model to treat the ladle mouth slag generates a comprehensive benefit = electricity cost benefit + temperature benefit = 130,000 yuan + 1.182 million yuan = 1.312 million yuan.

[0042] Electricity efficiency:

[0043] Each Baokou slag treatment reduces driving time by 6.6 minutes and consumes 3 yuan per minute of electricity. Each shift requires six treatments, three shifts per day, and a 365-day year.

[0044] Electricity cost benefit = 6.6 minutes / time × 3 yuan / min × 6 times / shift × 3 shifts / day × 365 days = 130,000 yuan.

[0045] Temperature benefits:

[0046] Each treatment can reduce the ladle temperature drop by 6 degrees Celsius, while the gas cost for raising the temperature of a 150-ton ladle by 1 degree Celsius is 30 yuan. Similarly, each shift can handle 6 times, 3 shifts per day, 365 days a year.

[0047] Temperature benefit = 6℃ / time × 30 yuan / ℃ × 6 times / shift × 3 shifts / day × 365 days = 1.182 million yuan.

[0048] In terms of social benefits, it improves production safety, reduces environmental pollution, and improves workers' working conditions. Therefore, the utility model reduces the amount of slag in the ladle, provides better ladle conditions for converter temperature and composition control, and improves molten steel quality.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for cleaning slag at the ladle opening, characterized in that: include: A fixed bottom plate (10) is arranged horizontally and placed on the ground near the ladle; A cleaning support upright plate (11) is vertically arranged, with its lower end fixedly connected to the upper side of the fixed bottom plate (10) and its upper end extending upward; A cleaning horizontal plate (12) is arranged horizontally, the lower side of one end of which is fixedly connected to the upper end of the cleaning support vertical plate (11), and the other end of which is used to rub the outer edge of the ladle mouth, so that the steel slag attached to the outer edge of the ladle mouth becomes loose after being rubbed, so that the other end can be extended into the ladle to move and break the steel slag accumulated at the ladle mouth, thereby allowing the steel slag accumulated at the ladle mouth to flow out of the ladle; A slag container (13) is placed on the upper side of the fixed bottom plate (10) and is a funnel-shaped container with an open top, used for receiving the steel slag cleaned from the ladle opening; The distance between the cleaning horizontal plate (12) and the slag container (13) is greater than half the diameter of the ladle opening; The cleaning horizontal plate (12) is a rectangular parallelepiped, one long side of the cleaning horizontal plate (12) is fixedly connected to the top vertical rod (15), and the other long side is used to extend into the ladle opening to move the steel slag accumulated at the ladle opening; the length of the long side of the cleaning horizontal plate (12) is 1 / 4-1 / 5 of the diameter of the ladle opening; The length of the short side of the cleaning horizontal plate (12) is less than the vertical distance between the steel cover and the ladle opening when the opening between the steel cover and the ladle opening is 30 degrees; The thickness of the cleaning horizontal plate (12) is 1 / 4-1 / 5 of the short side of the cleaning horizontal plate (12).

2. The device for cleaning slag at the ladle opening according to claim 1, characterized in that: The cleaning support vertical plate (11) comprises a bottom vertical plate (14) and a top vertical rod (15) both of which are arranged vertically. The lower end of the bottom vertical plate (14) is fixedly connected to the upper side of the fixed bottom plate (10), and the upper end thereof is integrally connected to the lower end of the top vertical rod (15). The upper end of the top vertical rod (15) is fixedly connected to the lower side of the cleaning horizontal plate (12).

3. The device for cleaning slag at the ladle opening according to claim 1, characterized in that: A plurality of reinforcing steel plates (16) are provided between the top upright pole (15) and the cleaning horizontal plate (12).

4. The device for cleaning slag at the ladle opening according to claim 1, characterized in that: The cleaning horizontal plate (12) is arranged on a side close to the slag container (13).

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