Device for baking movable steel ladle

Abstract

The utility model discloses a device for baking a movable steel ladle, which comprises four lifting stand columns, the four lifting stand columns are arranged in a rectangular shape, the tops of the four lifting stand columns jointly support and are connected with a top platform frame, and the top platform frame synchronously ascends and descends along with the four lifting stand columns. A set of sealing cover heating mechanism acting on a steel ladle opening is arranged on the top platform frame; a running track transversely penetrates through the middles of the bottoms of the four lifting stand columns, a steel ladle trolley is installed on the running track, a steel ladle stabilizing sleeve is arranged on the steel ladle trolley, and the steel ladle stabilizing sleeve is used for bearing and placing a steel ladle; by designing a brand-new mechanism, the steel ladle can be stably transferred on the ground and conveyed to the position below the flame spray gun for ladle baking operation, and when the ladle is baked, the ladle baking efficiency can be improved through protection of the heat insulation and preservation layer.

Description

Technical Field

[0001] This utility model relates to the field of steelmaking auxiliary equipment technology, and in particular to a device for heating mobile ladles. Background Technology

[0002] In the steelmaking process, to remove moisture and impurities from the inside of the ladle and ensure the quality of the molten steel and production efficiency, a ladle-baking process is necessary. The specific reasons and importance of ladle-baking are as follows:

[0003] **Moisture and Impurity Removal:** Over time, moisture and impurities accumulate inside the ladle. At high temperatures, this moisture can form steam, potentially increasing the hydrogen content in the molten steel and affecting its quality. Ladle baking effectively removes this moisture and impurities through high-temperature heating, preventing explosions during steel storage and transportation. **Increased Steel Temperature:** Ladle baking significantly increases the ladle temperature, reducing heat loss during transport. Without baking, the tapping temperature of the molten steel needs to be higher, increasing smelting time, raw material consumption, and production costs. **Ensuring Production Efficiency:** Ladle baking ensures the ladle reaches the required temperature during pouring, reducing production interruptions and equipment damage due to insufficient temperature, thus improving overall production efficiency and equipment lifespan. **Energy Saving and Environmental Protection:** Modern ladle baking machines utilize oxy-fuel combustion technology, significantly improving combustion efficiency, reducing nitrogen oxide emissions, and lowering environmental protection investment and operating costs. For example, oxy-fuel combustion technology reduces nitrogen involvement, avoiding its impact on the combustion process, improving combustion efficiency, and reducing energy consumption.

[0004] The above describes the reasons and functions of ladle baking. However, for current ladle baking operations, the ladle needs to be transported back and forth in the air by overhead cranes, which is not very safe or convenient. At the same time, the ladle needs to be heated during the baking process, and the current baking operation has poor heat preservation, resulting in a long baking time and high energy consumption. Utility Model Content

[0005] The purpose of this invention is to provide a device for baking mobile ladle in response to the above-mentioned situation. This device offers better safety, shortens baking time, and reduces energy consumption during the baking process.

[0006] The specific solution of this utility model is as follows: a device for heating mobile ladles includes four lifting columns arranged in a rectangular pattern. The tops of the four lifting columns are connected to a top platform frame, which rises and falls synchronously with the four lifting columns. A sealing and heating mechanism acting on the ladle opening is installed on the top platform frame. A running track is arranged horizontally through the middle of the bottom of the four lifting columns. A ladle trolley is mounted on the running track. A ladle stabilizing sleeve is installed on the ladle trolley to support and place the ladle.

[0007] Furthermore, the lifting column described in this utility model is composed of lifting cylinders. The cylinder barrels of the lifting cylinders are vertically installed on the ground or platform plate, and the piston rods of the lifting cylinders are arranged upwards. The upper ends of the piston rods of the four lifting cylinders are connected to the top platform frame. The four lifting cylinders are controlled to lift synchronously by a controller.

[0008] Furthermore, the sealing and heating mechanism described in this utility model includes a disc-shaped heat-resistant top cover. The top of the heat-resistant top cover is fixedly placed at the center of the top platform frame by a fixing plate. A heat insulation layer made of refractory brick material is built on the bottom surface of the heat-resistant top cover. A flame gun is arranged downward at the center of the heat insulation layer. A heating gas pipe is connected to the upper surface of the flame gun and connected to external natural gas and combustion-supporting gas.

[0009] Furthermore, the ladle stabilizing sleeve described in this utility model has a sleeve body fixedly mounted on the ladle trolley, with the sleeve body opening facing upwards, and a plurality of foot insertion holes provided on the bottom surface inside the sleeve body, which are used to accommodate the bottom feet of the ladle.

[0010] Furthermore, the ladle trolley described in this utility model has a trolley plate, on which the ladle stabilizing sleeve is mounted, and two rows of traveling wheels are provided at the bottom of the trolley plate, which are driven by a traveling motor.

[0011] Furthermore, the top platform frame described in this utility model includes a square frame, the four corners of which are connected to the tops of four lifting columns, and cross connecting rods are connected along the diagonal of the square frame.

[0012] This invention features a novel mechanism that enables the stable transfer of steel ladles on the ground and their placement under a flame torch for baking. The heat insulation layer enhances baking efficiency, and the sealing and heating mechanism accommodates ladles of varying heights with its adjustable lifting mechanism. The entire device possesses significant practical value and potential for widespread adoption. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure from the main view direction of this utility model;

[0014] Figure 2 This is a top view structural diagram of this utility model;

[0015] Figure 3 This is a schematic diagram of the sealing and heating mechanism in this utility model;

[0016] Figure 4 yes Figure 3 A schematic diagram of the structure viewed from below.

[0017] In the diagram: 1—Running track, 2—Sleeve body, 3—Walking wheel, 4—Trolley plate, 5—Lifting column, 6—Top platform frame, 7—Heating gas pipe, 8—Sealing heating mechanism, 9—Support insertion hole, 10—Square frame, 11—Cross connecting rod, 12—Heat-resistant top cover, 13—Fixing plate, 14—Flame gun, 15—Heat insulation layer. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," etc., indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] See Figures 1-4This utility model is a device for heating mobile ladles, comprising four lifting columns 5 arranged in a rectangular pattern. The tops of the four lifting columns are connected to a top platform frame 6, which rises and falls synchronously with the four lifting columns. A sealing and heating mechanism 8 acting on the ladle opening is installed on the top platform frame. Furthermore, the sealing and heating mechanism includes a disc-shaped heat-resistant top cover 12, the top of which is fixedly placed at the center of the top platform frame by a fixing plate. A heat insulation layer 15 made of refractory brick material is built on the bottom surface of the heat-resistant top cover. A flame gun 14 is installed downward at the center of the heat insulation layer. A heating gas pipe 7 is connected to the flame gun and connected to external natural gas and combustion-supporting gas. A running track 1 is arranged horizontally through the middle of the bottom of the four lifting columns. A ladle trolley is mounted on the running track. A ladle stabilizing sleeve is installed on the ladle trolley to support and place the ladle.

[0021] Furthermore, the lifting columns described in this utility model are composed of lifting cylinders. The cylinder barrels of the lifting cylinders are vertically installed on the ground or platform plate, and the piston rods of the lifting cylinders are arranged upwards. The upper ends of the piston rods of the four lifting cylinders are connected to the top platform frame. The four lifting cylinders are controlled synchronously by a controller. Furthermore, the ladle stabilizing sleeve described in this utility model has a sleeve body 2 fixedly mounted on the ladle trolley. The sleeve body has an upward-facing opening, and several foot insertion holes 9 are provided on the bottom surface inside the sleeve body for accommodating the bottom feet of the ladle. Furthermore, the ladle trolley described in this utility model has a trolley plate 4, on which the ladle stabilizing sleeve is mounted. Two rows of traveling wheels 3 are provided at the bottom of the trolley plate, and the traveling wheels are driven by a traveling motor. Furthermore, the top platform frame described in this utility model includes a square frame 10. The four corners of the square frame are respectively connected to the tops of the four lifting columns, and cross connecting rods 11 are connected along the diagonals of the square frame.

[0022] The above structural description pertains to the entire device; specific operations are as follows:

[0023] Before baking, the ladle trolley is moved to one side of the running track to receive the ladle. After the ladle is hoisted over, it is placed in the corresponding ladle stabilizing sleeve. At this time, the ladle trolley is started to transfer the ladle to the bottom of the top platform frame. Then, the four lifting cylinders are activated so that the heat insulation layer in the heat-resistant top cover of the sealing and heating mechanism is placed at the top of the ladle. Then, the flame spray gun is started to heat and bake the ladle. After a period of time, the sealing and heating mechanism rises, and the ladle is transferred out by the ladle trolley. The whole process is very smooth, safe, and fast, making it safe and efficient.

[0024] This invention features a novel mechanism that enables the stable transfer of steel ladles on the ground and their placement under a flame torch for baking. The heat insulation layer enhances baking efficiency, and the sealing and heating mechanism accommodates ladles of varying heights with its adjustable lifting mechanism. The entire device possesses significant practical value and potential for widespread adoption.

Claims

1. An apparatus for heating a mobile ladle, characterized in that: It includes four lifting columns arranged in a rectangular pattern. The top of the four lifting columns is connected to a top platform frame, which rises and falls synchronously with the four lifting columns. A sealing and heating mechanism for the ladle opening is installed on the top platform frame. A running track runs horizontally through the middle of the bottom of the four lifting columns. A ladle trolley is mounted on the running track. A ladle stabilizing sleeve is installed on the ladle trolley to support and place the ladle.

2. The apparatus for heating a mobile ladle according to claim 1, characterized in that: The lifting column is composed of lifting cylinders. The cylinder barrels of the lifting cylinders are vertically installed on the ground or platform plate, and the piston rods of the lifting cylinders are arranged upward. The upper ends of the piston rods of the four lifting cylinders are connected to the top platform frame. The four lifting cylinders are controlled to lift synchronously by a controller.

3. The apparatus for heating a mobile ladle according to claim 1, characterized in that: The sealing and heating mechanism includes a disc-shaped heat-resistant top cover. The top of the heat-resistant top cover is fixedly placed at the center of the top platform frame by a fixing plate. A heat insulation layer made of refractory brick material is built on the bottom surface of the heat-resistant top cover. A flame gun is set downward at the center of the heat insulation layer. A heating gas pipe is connected to the flame gun outward. The heating gas pipe is connected to external natural gas and combustion-supporting gas.

4. The apparatus for heating a mobile ladle according to claim 1, characterized in that: The ladle stabilizing sleeve has a sleeve body fixedly mounted on the ladle trolley, with the sleeve opening facing upwards. Several foot insertion holes are provided on the bottom surface inside the sleeve body, which are used to install the bottom feet of the ladle.

5. The apparatus for heating a mobile ladle according to claim 1, characterized in that: The ladle trolley has a trolley plate, on which the ladle stabilizing sleeve is mounted. Two rows of traveling wheels are provided at the bottom of the trolley plate, and the traveling wheels are driven by a traveling motor.

6. The apparatus for heating a mobile ladle according to claim 1, characterized in that: The top platform frame includes a square frame, with the four corners of the square frame connected to the tops of four lifting columns, and cross connecting rods connected along the diagonals of the square frame.

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