A ladle refractory baking device

Abstract

The utility model belongs to the steel ladle roasting equipment technical field discloses a kind of refractory roasting device for steel ladle, including roasting tank, rotating platform is equipped in roasting tank inside, rotating platform is driven by drive assembly, the inside annular arrangement of roasting tank lift type combustor group, and lift type combustor group is driven by hydraulic push rod;Roasting tank is installed with waste heat recovery mechanism, waste heat recovery mechanism includes air inlet cover, annular heat exchanger and air pump, the output of air pump is connected with outside heating system, the outer surface of rotating platform is installed with ball bearing, ball bearing is installed on the inner cavity wall of roasting tank, drive assembly includes drive motor, drive motor is installed on the bottom of roasting tank, vertically and rotatably installed with driving shaft on roasting tank, one end of driving shaft is installed on the bottom of rotating platform.The utility model not only facilitates the rotation heating of steel ladle, and evenly heated, but also can recycle waste heat, to reduce energy consumption.

Description

Technical Field

[0001] This utility model relates to the technical field of ladle baking equipment, and in particular to a baking device for refractory materials used in ladle baking. Background Technology

[0002] The refractory material baking device for steel ladles is a special equipment used in the metallurgical industry to preheat or dry the refractory material lining of steel ladles. Its core function is to control the heat transfer so that the refractory material reaches a suitable working temperature, thus avoiding cracking or thermal shock damage to the material due to excessive temperature difference when molten steel is poured.

[0003] Steel ladles are crucial pieces of equipment in the metallurgical industry. Their refractory linings require high-temperature baking to remove moisture and enhance structural strength. Traditional baking devices often use stationary burners, which present the following problems:

[0004] 1) Uneven heating: The fixed burner causes uneven heating of the refractory material inside the ladle, resulting in local overheating or underheating, which affects the service life.

[0005] 2) High energy consumption: Traditional equipment lacks a waste heat recovery system, and high-temperature flue gas is directly emitted, resulting in low thermal efficiency. Therefore, we propose a refractory material baking device for steel ladles. Utility Model Content

[0006] In view of the above-mentioned problems of uneven heating and high energy consumption, this utility model is proposed.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] A refractory material baking device for steel ladles includes a baking tank, a rotating platform inside the baking tank, the rotating platform being driven by a drive assembly, and a lifting burner group arranged in a ring inside the baking tank, the lifting burner group being driven by a hydraulic push rod.

[0009] The baking tank is equipped with a waste heat recovery mechanism, which includes an air inlet hood, an annular heat exchanger, and an air pump. The output end of the air pump is connected to an external heating system.

[0010] As a technical solution of the refractory material baking device for steel ladles according to the present invention, wherein: a ball bearing is installed on the outer surface of the rotating platform, and the ball bearing is installed on the inner wall of the baking tank.

[0011] As a technical solution of the refractory material baking device for steel ladles according to the present invention, the driving component includes a driving motor, the driving motor is installed on the bottom of the baking tank, a driving shaft is vertically and rotatably installed on the baking tank, one end of the driving shaft is installed on the bottom of the rotating platform, and the output shaft of the driving motor is connected to the end of the driving shaft away from the rotating platform.

[0012] As a technical solution of the refractory material baking device for steel ladles described in this utility model, the drive motor is a variable frequency motor, and the speed of the variable frequency motor can be adjusted by a PLC controller.

[0013] As a technical solution of the refractory material baking device for steel ladles according to the present invention, the lifting burner group includes at least three burners, and the height of each burner is controlled by an independent hydraulic push rod.

[0014] As a technical solution of the refractory material baking device for steel ladles according to the present invention, a fixing ring is installed on the inner wall of the baking tank, and the hydraulic push rod is installed at the bottom of the fixing ring, and the through-extension part is connected to the burner.

[0015] As a technical solution of the refractory material baking device for steel ladles according to this utility model, the air inlet hood is installed on the top of the baking tank, an inverted U-shaped pipe is provided between the air inlet hood and the annular heat exchanger, and the inverted U-shaped pipe is connected to the air inlet end of the annular heat exchanger, an air pump is provided with an air inlet pipe at the exhaust end of the annular heat exchanger, and the air inlet pipe is connected to the annular heat exchanger, and an exhaust pipe is installed at the end of the air pump away from the air inlet pipe, and the exhaust pipe is connected to an external heating system.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] 1. This utility model involves placing a steel ladle on a rotating platform and then starting a drive motor. The output shaft of the drive motor drives the drive shaft to rotate, which in turn drives the rotating platform to rotate. The rotating platform then drives the steel ladle to rotate. Simultaneously, a ring-shaped lifting burner assembly is activated. The burners then rotate and heat the steel ladle to ensure uniform heating. During this process, the height can be adjusted using a hydraulic push rod to accommodate steel ladles of different heights, thus facilitating rotational heating of the steel ladle and ensuring uniform heating, thereby extending the service life of the refractory material.

[0018] 2. In this utility model, by starting the air pump and the annular heat exchanger, the high-temperature flue gas generated during baking enters the annular heat exchanger through the inner cavity of the air inlet hood and the inner cavity of the inverted U-shaped tube. After heat exchange treatment by the annular heat exchanger, it enters the air pump through the air inlet pipe and is then discharged into the external heating system through the inner cavity of the air pump's exhaust pipe to provide heating energy. At the same time, it can realize the recovery and utilization of waste heat to reduce energy consumption, thus facilitating the recovery and utilization of waste heat to reduce energy consumption. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0022] Figure 3 This is a schematic diagram of the assembly structure of the lifting gas heater of this utility model.

[0023] Figure 4 This is a schematic diagram of the waste heat recovery mechanism of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] In the diagram: 1. Baking tank; 101. Fixing ring; 2. Rotating platform; 3. Ball bearing; 4. Drive motor; 5. Drive shaft; 6. Burner; 7. Hydraulic push rod; 8. Air inlet hood; 9. Inverted U-shaped tube; 10. Annular heat exchanger; 11. Air inlet pipe; 12. Air pump; 13. Exhaust pipe. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Reference Figures 1-3A refractory material baking device for steel ladles is provided. This device includes a baking tank 1, a rotating platform 2 inside the baking tank 1, and a drive assembly. Ball bearings 3 are installed on the outer surface of the rotating platform 2 and are mounted on the inner wall of the baking tank 1. The drive assembly includes a drive motor 4, which is mounted on the bottom of the baking tank 1. A drive shaft 5 is vertically and rotatably mounted on the baking tank 1. One end of the drive shaft 5 is mounted on the bottom of the rotating platform 2. The output shaft of the drive motor 4 is connected to the end of the drive shaft 5 away from the rotating platform 2. The drive motor 4 is a variable frequency motor, and its speed can be adjusted by a PLC controller. In application, the steel ladle is placed on the rotating platform 2, and then the drive motor 4 is started. At this time, the output shaft of the drive motor 4 drives the drive shaft 5 to rotate, the drive shaft 5 drives the rotating platform 2 to rotate, and the rotating platform 2 drives the steel ladle to rotate, thus facilitating the rotation and heating of the steel ladle to eliminate baking dead zones.

[0028] The baking tank 1 has a ring-shaped lifting burner group inside, which is driven by a hydraulic push rod 7. The lifting burner group includes at least three burners 6 (burners 6 are existing technology and will not be described in detail here). The height of each burner 6 is controlled by an independent hydraulic push rod 7. A fixing ring 101 is installed on the inner wall of the baking tank 1. The hydraulic push rod 7 is installed at the bottom of the fixing ring 101 and its through-extension part is connected to the burner 6. In application, by starting the ring-shaped lifting burner group, the burner 6 rotates and heats the ladle to achieve uniform heating of the ladle. During this period, the height can be adjusted by the hydraulic push rod 7 to adapt to ladles of different heights, thereby facilitating uniform heating of the ladle and adapting to ladles of different heights.

[0029] Reference Figure 1 , Figure 2 as well as Figure 4The baking tank 1 is equipped with a waste heat recovery mechanism, which includes an air inlet hood 8, an annular heat exchanger 10, and an air pump 12. The output end of the air pump 12 is connected to an external heating system. The air inlet hood 8 is installed on the top of the baking tank 1. An inverted U-shaped pipe 9 is provided between the air inlet hood 8 and the annular heat exchanger 10, and the inverted U-shaped pipe 9 is connected to the air inlet end of the annular heat exchanger 10. An air inlet pipe 11 is provided between the air pump 12 and the exhaust end of the annular heat exchanger 10, and the air inlet pipe 11 is connected to the annular heat exchanger 10. The air pump 12 is located away from the air inlet pipe. One end of 11 is equipped with an exhaust pipe 13, which is connected to an external heating system. In application, by starting the air pump 12 and the annular heat exchanger 10, the high-temperature flue gas generated during baking enters the annular heat exchanger 10 through the inner cavity of the air inlet hood 8 and the inner cavity of the inverted U-shaped pipe 9. After heat exchange treatment by the annular heat exchanger 10, it enters the air pump 12 through the air inlet pipe 11 and is then discharged into the external heating system through the inner cavity of the exhaust pipe 13 of the air pump 12 to provide heating energy. At the same time, it can realize the recovery and utilization of waste heat to reduce energy consumption.

[0030] The working principle of this utility model is as follows: By placing the steel ladle on the rotating platform 2, and then starting the drive motor 4, the output shaft of the drive motor 4 drives the drive shaft 5 to rotate, the drive shaft 5 drives the rotating platform 2 to rotate, and the rotating platform 2 drives the steel ladle to rotate. At the same time, the ring-shaped lifting burner group is started. At this time, the burner 6 rotates and heats the steel ladle to achieve uniform heating of the steel ladle. During this period, the height can be adjusted by the hydraulic push rod 7 to adapt to steel ladles of different heights, so as to facilitate the rotation and heating of the steel ladle and ensure uniform heating, thereby extending the service life of the refractory material.

[0031] Simultaneously, by starting the air pump 12 and the annular heat exchanger 10, the high-temperature flue gas generated during baking enters the annular heat exchanger 10 through the inner cavity of the air inlet hood 8 and the inner cavity of the inverted U-shaped tube 9. After heat exchange treatment by the annular heat exchanger 10, it enters the air pump 12 through the air inlet pipe 11, and is then discharged into the external heating system through the inner cavity of the exhaust pipe 13 of the air pump 12 to provide heating energy. At the same time, it can realize the recovery and utilization of waste heat to reduce energy consumption, thus facilitating the recovery and utilization of waste heat to reduce energy consumption.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A refractory material baking device for steel ladles, characterized in that: It includes a baking tank (1), a rotating platform (2) is provided inside the baking tank (1), the rotating platform (2) is driven by a drive assembly, and a lifting burner group is arranged in a ring inside the baking tank (1), and the lifting burner group is driven by a hydraulic push rod (7); The baking tank (1) is equipped with a waste heat recovery mechanism, which includes an air inlet hood (8), an annular heat exchanger (10) and an air pump (12). The output end of the air pump (12) is connected to an external heating system.

2. The refractory material baking device for steel ladles according to claim 1, characterized in that: The outer surface of the rotating platform (2) is equipped with a ball bearing (3), which is installed on the inner wall of the baking tank (1).

3. The refractory material baking device for steel ladles according to claim 2, characterized in that: The drive assembly includes a drive motor (4), which is mounted on the bottom of the baking tank (1). A drive shaft (5) is vertically and rotatably mounted on the baking tank (1). One end of the drive shaft (5) is mounted on the bottom of the rotating platform (2). The output shaft of the drive motor (4) is connected to the end of the drive shaft (5) away from the rotating platform (2).

4. The refractory material baking device for steel ladles according to claim 3, characterized in that: The drive motor (4) is a variable frequency motor, and the speed of the variable frequency motor can be adjusted by a PLC controller.

5. The refractory material baking device for steel ladles according to claim 1, characterized in that: The lifting burner assembly includes at least three burners (6), each burner (6) having its height controlled by an independent hydraulic push rod (7).

6. The refractory material baking apparatus for steel ladles according to claim 5, characterized in that: A fixing ring (101) is installed on the inner wall of the baking tank (1), and the hydraulic push rod (7) is installed at the bottom of the fixing ring (101) and its extended portion is connected to the burner (6).

7. The refractory material baking apparatus for steel ladles according to claim 1, characterized in that: The air intake hood (8) is installed on the top of the baking tank (1). An inverted U-shaped tube (9) is provided between the air intake hood (8) and the annular heat exchanger (10), and the inverted U-shaped tube (9) is connected to the air intake end of the annular heat exchanger (10). An air pump (12) is provided with an air intake pipe (11) at the exhaust end of the annular heat exchanger (10), and the air intake pipe (11) is connected to the annular heat exchanger (10). An exhaust pipe (13) is installed at the end of the air pump (12) away from the air intake pipe (11), and the exhaust pipe (13) is connected to the external heating system.

Images