A ladle non-gravity flow dredging device

Abstract

This utility model discloses a dredging device for continuous casting machines to address the problem of solidified steel at the ladle nozzle in existing technologies. It includes an L-shaped drainage pipe and an oxygen supply device connected to one end of the drainage pipe. The other end of the drainage pipe is connected to the ladle nozzle. The oxygen supply device is connected via the drainage device to deliver oxygen to the ladle nozzle, thereby melting the solidified steel. This utility model connects the ladle nozzle and the oxygen supply device via the L-shaped drainage pipe, delivering oxygen to the ladle nozzle to melt the solidified steel and dredge the nozzle. The structure is simple and easy to operate. The L-shaped drainage pipe ensures the safety of workers when inserting the pipe into the ladle nozzle, preventing injury from the high temperature of the molten steel flowing out during the dredging process. Furthermore, the L-shaped drainage pipe does not affect the layout of other structures during use, eliminating the need for machine shutdown and improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of continuous casting machines, and in particular to a dredging device for a ladle that does not flow by itself. Background Technology

[0002] With the rapid development of continuous casting technology, steel ladles primarily employ sliding gates filled with guiding sand. When casting begins on the continuous casting platform, the sliding gate is opened, allowing molten steel to flow smoothly into the tundish along with the guiding sand through the ladle's bottom inlet and long inlet, achieving continuous steel casting. However, in the efficient production process of continuous casting, if the guiding sand in the ladle's bottom inlet sinters or the molten steel solidifies and cannot flow by itself, it can cause interruptions in continuous casting production, affecting normal operation. Therefore, when the continuous casting ladle does not flow by itself and manual guiding is required, ensuring the safe, rapid, and accurate guiding of the molten steel is crucial for guaranteeing billet quality and smooth continuous casting production. Utility Model Content

[0003] The purpose of this utility model is to provide a dredging device for a ladle that does not flow by itself. It connects the ladle nozzle and the oxygen supply device through an L-shaped drainage pipe to deliver oxygen to the ladle nozzle to melt the solidified steel.

[0004] To solve the above technical problems, the following technical solution is adopted: This utility model provides a device for unblocking a steel ladle that does not flow by itself, including an L-shaped drainage pipe and an oxygen supply device connected to one end of the drainage pipe. The other end of the drainage pipe is connected to the ladle nozzle. The oxygen supply device is connected through the drainage device to deliver oxygen to the ladle nozzle, thereby melting the solidified steel.

[0005] Optionally, the drainage pipe includes an oxygen pipe section, an arc-shaped bend section, and a water inlet pipe section. The oxygen pipe section is connected to the oxygen supply device, the water inlet pipe section is inserted into the ladle water inlet, and the arc-shaped bend section is located between the oxygen pipe section and the water inlet pipe section.

[0006] Optionally, the drainage tube is a cast iron tube with a wall thickness of 2 mm, an inner diameter of 1 cm, and a total length of 420 cm.

[0007] Optionally, the length of the oxygen tube is 300 cm.

[0008] Optionally, the length of the sprue pipe is 120cm.

[0009] Optionally, the oxygen supply device is provided with a connecting pipe, one end of the drainage pipe is connected to the connecting pipe, and the connecting pipe is provided with a valve for controlling the oxygen supply.

[0010] Optionally, the oxygen pressure in the oxygen supply device is greater than 0.6 MPa.

[0011] Optionally, the ladle nozzle is located at the bottom of the ladle.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This invention connects the ladle nozzle and the oxygen supply device via an L-shaped drain pipe, supplying oxygen to the ladle nozzle to melt the condensed steel and thus clear the nozzle. The structure is simple and easy to operate. The L-shaped drain pipe ensures the safety of workers when inserting it into the ladle nozzle, preventing injury from the high temperature of the molten steel flowing out during the unblocking process. Furthermore, the L-shaped drain pipe does not affect the layout of other structures during use, eliminating the need for machine downtime and improving production efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the drainage tube structure in an embodiment of this utility model; Figure 2 This is a schematic diagram of the ladle nozzle structure in an embodiment of this utility model; Figure 3 This is a schematic diagram of the oxygen supply device in an embodiment of this utility model.

[0014] Explanation of reference numerals in the attached figures: 1. Oxygen pipe section; 2. Arc-shaped bend section; 3. Water inlet pipe section; 4. Steel ladle water inlet; 5. Connecting pipe; 6. Valve. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use.

[0016] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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.

[0017] Example 1

[0018] This embodiment provides a device for unblocking a ladle that does not flow by itself, including a drainage pipe and an oxygen supply device. The drainage pipe has an L-shaped structure, with one end connected to the ladle outlet 4 and the other end connected to the oxygen supply device. The oxygen in the oxygen supply device is transported to the ladle outlet 4 through the drainage pipe. The oxygen reacts with the molten steel inside to undergo an oxidation reaction, melting the solidified steel and thus unblocking the ladle outlet 4.

[0019] When the ladle nozzle 4 cannot flow by itself due to the sintering of the diversion sand or the molten steel freezing into cold steel, the staff first connects one end of the diversion pipe to the oxygen supply device and inserts the other end into the ladle nozzle 4. Then, oxygen is supplied into the ladle nozzle 4 to clear the blockage.

[0020] Example 2

[0021] like Figure 1As shown, this embodiment provides a non-self-flowing dredging device for a ladle based on Embodiment 1. The drainage pipe includes an oxygen pipe section 1, an arc-shaped bend section 2, and a water inlet pipe section 3. The oxygen pipe section 1 is connected to an oxygen supply device, and the water inlet pipe section 3 is inserted into the ladle water inlet 4. The arc-shaped bend section 2 is located between the oxygen pipe section 1 and the water inlet pipe section 3. Through the L-shaped drainage pipe, when the worker inserts the water inlet pipe section 3 into the ladle water inlet 4, he can hold the oxygen pipe section 1 to avoid injury to the human body from the molten steel in the ladle.

[0022] The drainage pipe is made of cast iron and can withstand the high temperature of molten steel inside the ladle. The wall thickness of the drainage pipe is 2mm, the inner diameter is 1mm, and the total length is 420cm, of which the length of oxygen pipe section 1 is 300cm and the length of water inlet pipe section 3 is 120cm.

[0023] like Figure 3 As shown, the oxygen supply device is equipped with a connecting pipe 5. A valve 6 is located at one end of the connecting pipe 5 near the oxygen supply device. The connecting pipe 5 is connected to the oxygen tube section 1 on the drainage pipe, with the oxygen tube section 1 extending into the connecting pipe 5. The connection is then secured by bolts on the connecting pipe 5. The flow of oxygen in the oxygen supply device is controlled by opening and closing the valve 6. The oxygen pressure in the oxygen supply device is greater than 0.6 MPa.

[0024] like Figure 2 As shown, the ladle nozzle 4 is located at the bottom of the ladle, which contains molten steel. The molten steel flows out of the ladle nozzle 4 and into the tundish, thus achieving continuous steel casting.

[0025] In use, first, fix the oxygen hose section 1 to the connecting pipe 5 of the oxygen supply device. Then, the worker holds the oxygen hose section 1 and inserts the sprue pipe section 3 into the ladle sprue 4. Next, open the valve 6 of the oxygen supply device to allow oxygen from the device to enter the ladle and react with the molten steel inside, melting the solidified steel at the ladle sprue 4 and allowing the molten steel to flow out smoothly. After unblocking, close the valve 6, then pull the sprue pipe section 3 out of the ladle sprue 4 and remove the oxygen hose section 1 from the connecting pipe 5.

[0026] This embodiment features a simple structure and is easy to operate. The L-shaped drain pipe enhances safety for operators, enabling safe, fast, and accurate draining. The L-shaped drain pipe does not require altering the positions of other components of the continuous casting machine. After unblocking, the flowing molten steel directly enters the tundish, preventing steel waste and production downtime, thus achieving continuous casting and improving production efficiency.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A non-self-flowing dredging device for steel ladles, characterized in that, It includes an L-shaped drainage pipe and an oxygen supply device connected to one end of the drainage pipe. The other end of the drainage pipe is connected to the ladle nozzle (4). The oxygen supply device is connected through the drainage device to deliver oxygen to the ladle nozzle (4) to melt the solidified steel.

2. The non-self-flowing dredging device for steel ladles according to claim 1, characterized in that, The drainage pipe includes an oxygen pipe section (1), an arc-shaped bend section (2), and a water inlet pipe section (3). The oxygen pipe section (1) is connected to the oxygen supply device, and the water inlet pipe section (3) is inserted into the ladle water inlet (4). The arc-shaped bend section (2) is located between the oxygen pipe section (1) and the water inlet pipe section (3).

3. The non-self-flowing dredging device for steel ladles according to claim 1, characterized in that, The drainage tube is a cast iron tube with a wall thickness of 2mm, an inner diameter of 1cm, and a total length of 420cm.

4. The non-self-flowing dredging device for steel ladles according to claim 2, characterized in that, The length of the oxygen tube (1) is 300cm.

5. The non-self-flowing dredging device for steel ladles according to claim 2, characterized in that, The length of the water inlet pipe (3) is 120cm.

6. The non-self-flowing dredging device for steel ladles according to claim 1, characterized in that, The oxygen supply device is provided with a connecting pipe (5), one end of the drainage pipe is connected to the connecting pipe (5), and the connecting pipe (5) is provided with a valve (6) for controlling the oxygen supply.

7. The non-self-flowing dredging device for steel ladles according to claim 1, characterized in that, The oxygen pressure in the oxygen supply device is greater than 0.6 MPa.

8. The non-self-flowing dredging device for steel ladles according to claim 1, characterized in that, The ladle nozzle (4) is located at the bottom of the ladle.

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