Multi-point temperature measuring system for ladle baking

Abstract

The utility model relates to a kind of multi-point temperature measurement system when steel ladle is roasted, including fixed fixed base, vertical shaft is connected on the vertical rotating shaft of fixed base and the rotating drive mechanism of driving vertical rotating shaft rotation, still including vertical sliding connection on the vertical rotating shaft lifting seat and the lifting drive mechanism of driving lifting seat lifting, the connecting block is fixedly connected on the lifting seat, the horizontal support ring is fixedly connected in the connecting block side surface, the U-shaped pipe is fixedly connected in the support ring lower end, the upper layer temperature sensor, middle layer temperature sensor and lower layer temperature sensor of the upper and lower arrangement are fixedly connected in the U-shaped pipe, cooling water flows in the U-shaped pipe, this system controls the control level of this key process of steel ladle roasting to new height, with its excellent reliability, precision and automation degree, become the important technical support of steel enterprise to realize safe, stable, efficient, economic operation, powerfully strengthen the core competitiveness of enterprise.

Description

Technical Field

[0001] This utility model relates to the field of ladle baking technology, specifically to a multi-point temperature measurement system for ladle baking. Background Technology

[0002] Ladle baking is an essential step in the production of water-atomized iron powder. Also known as ladle preheating, it refers to the process of heating a refractory-lined ladle (after it has been built or repaired) with fuel (such as coal gas, natural gas, or diesel) to a predetermined temperature before use. Simply put, just as a clay pot needs to be "seasoned" or preheated before use, a ladle must also be thoroughly preheated before being filled with molten steel (usually exceeding 1500°C). Ladle baking is not a dispensable step; it is crucial for ensuring safe production, improving steel quality, and extending the lifespan of the ladle.

[0003] The main purposes of ladle baking are: to remove moisture, increase the temperature of the ladle lining, reduce the temperature drop of molten steel, sinter refractory materials, and form a solid working layer. The adequacy, uniformity, and controllability of ladle baking are the "lifeline" for safe, stable, efficient, and economical operation in the smelting process. Neglecting baking or improper control can, at best, affect quality and costs, and at worst, lead to major safety accidents. Therefore, employing advanced technology to accurately measure the temperature at various heights within the ladle during baking is an inevitable choice for steel enterprises to enhance their core competitiveness. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a multi-point temperature measurement system for ladle baking.

[0005] This utility model is achieved through the following technical solution: a multi-point temperature measurement system for ladle baking is provided, including a fixed base, a vertical shaft connected to the fixed base, and a rotation drive mechanism for driving the vertical shaft to rotate. It also includes a lifting seat slidably connected to the vertical shaft and a lifting drive mechanism for driving the lifting seat to rise and fall. A connecting block is fixedly connected to the lifting seat, and a horizontal support ring is fixedly connected to the side of the connecting block. A U-shaped tube is fixedly connected to the lower end of the support ring. An upper temperature sensor, a middle temperature sensor, and a lower temperature sensor are fixedly connected to the U-shaped tube. Cooling water flows through the U-shaped tube.

[0006] As an optimization, the rotary drive mechanism includes a passive rotary gear fixed on a vertical rotating shaft and a rotary motor fixed on a fixed base, wherein an active rotary gear meshing with the passive rotary gear is fixed on the rotating shaft of the rotary motor.

[0007] As an optimization, the lifting drive mechanism includes a lifting rack fixed on a vertical rotating shaft and a lifting motor fixed on a lifting seat, wherein a lifting gear that meshes with the lifting rack is fixed on the rotating shaft of the lifting motor.

[0008] As an optimization, the support ring is provided with an inlet chamber connected to the inlet pipe and an outlet chamber connected to the outlet pipe, and the two ends of the U-shaped tube are respectively connected to the inlet chamber and the outlet chamber.

[0009] As an optimization, both the inlet and outlet chambers extend into the connecting block, and the inlet pipe and outlet pipe are respectively located on both sides of the connecting block.

[0010] As an optimization, the spacing at the upper end of the U-shaped tube is greater than the spacing at the lower end.

[0011] As an optimization, both the upper and lower end faces of the support ring are planar.

[0012] The beneficial effects of this invention are as follows: This invention provides a multi-point temperature measurement system for ladle baking. Through a rotatable and liftable mechanical structure, a U-shaped tube with upper, middle, and lower temperature sensors can be precisely and stably inserted into the ladle, enabling real-time and accurate monitoring of the temperature field distribution at different heights within the ladle during the baking process. This three-dimensional temperature measurement method fundamentally overcomes the limitations of traditional single-point temperature measurement, providing operators with comprehensive and accurate temperature data. This allows for more precise control of the baking process, ensuring that the ladle lining is fully and uniformly preheated, effectively removing moisture and promoting the sintering of the refractory material. This not only significantly reduces the temperature drop of molten steel caused by insufficient ladle temperature and improves the quality of molten steel after tapping, but also provides a solid guarantee for safe production by preventing risks such as molten steel splashing and ladle lining peeling that may be caused by uneven or insufficient baking. Simultaneously, the optimized baking process also helps extend the service life of the ladle refractory material and reduce production costs. The design of cooling water flowing inside the U-shaped tube ensures the long-term stable operation and measurement accuracy of the temperature sensors in high-temperature environments. In summary, this system elevates the control level of the critical process of ladle baking to a new level. With its excellent reliability, accuracy, and automation, it has become an important technical support for steel enterprises to achieve safe, stable, efficient, and economical operation, and has significantly enhanced their core competitiveness. Attached Figure Description

[0013] Figure 1 This is a front view of the present utility model; Figure 2 This is a front view of the utility model in its raised state; Figure 3 This is a schematic diagram of the support ring and U-shaped tube of this utility model; Figure 4 This is a side view of the support ring and U-shaped tube of this utility model; Figure 5 This utility model Figure 4 Sectional view of plane AA; As shown in the figure: 1. Fixed base; 2. Vertical rotating shaft; 3. Passive rotating gear; 4. Active rotating gear; 5. Rotary motor; 6. Lifting rack; 7. Lifting seat; 8. Lifting motor; 9. Lifting gear; 10. Steel ladle; 11. Support ring; 12. Connecting block; 13. U-shaped tube; 14. Upper layer temperature sensor; 15. Middle layer temperature sensor; 16. Lower layer temperature sensor; 17. Liquid inlet chamber; 18. Liquid outlet chamber; 19. Liquid inlet pipe; 20. Liquid outlet pipe. Detailed Implementation

[0014] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0015] like Figures 1-5 As shown, a multi-point temperature measurement system for ladle baking according to this utility model includes a fixed base 1, a vertical rotating shaft 2 connected to the fixed base 1, and a rotation drive mechanism for driving the vertical rotating shaft 2 to rotate. The fixed base 1 is fixed to the ground on the side of the baking station by anchor bolts. In this embodiment, the fixed base 1 includes a foot plate fixed to the ground and a rotating sleeve welded to the ground. The vertical rotating shaft 2 is a vertical round tube inserted into the rotating sleeve.

[0016] The rotary drive mechanism includes a passive rotary gear 3 fixed to a vertical rotating shaft 2 and a rotary motor 5 fixed to a fixed base 1. An active rotary gear 4, meshing with the passive rotary gear 3, is fixed to the rotating shaft of the rotary motor 5. The diameter of the active rotary gear 4 is smaller than the diameter of the passive rotary gear 3. The rotation of the rotary motor 5 and the power transmission between the active rotary gear 4 and the passive rotary gear 3 enable the rotation of the vertical rotating shaft 2 along the vertical shaft.

[0017] It also includes a lifting seat 7 that slides vertically on the vertical rotating shaft 2 and a lifting drive mechanism that drives the lifting seat 7 to rise and fall. The lifting seat 7 achieves vertical sliding guidance by cooperating with a slide rail fixed on the vertical rotating shaft 2 through a slider.

[0018] The lifting drive mechanism includes a lifting rack 6 fixed to a vertical rotating shaft 2 and a lifting motor 8 fixed to a lifting seat 7. The lifting rack 6 is vertically arranged, and a lifting gear 9 that meshes with the lifting rack 6 is fixed to the rotating shaft of the lifting motor 8. The lifting seat 7 is raised or lowered by the rotation of the lifting motor 8 and the cooperation between the lifting gear 9 and the lifting rack 6.

[0019] A connecting block 12 is fixedly connected to the side of the lifting seat 7 away from the vertical rotating shaft 2. A horizontal support ring 11 is fixedly connected to the side of the connecting block 12. The support ring 11 is circular, and both its upper and lower end faces are flat. The outer diameter of the support ring 11 is the same as the outer diameter of the upper end of the ladle, and the inner diameter of the support ring 11 is the same as the inner diameter of the upper end of the ladle. This allows the support ring 11 to fit snugly against the upper end face of the ladle, and also allows the ladle cover to cover the upper end face of the support ring 11.

[0020] A U-shaped tube 13 is fixedly connected to the lower end of the support ring 11, and the two ends of the U-shaped tube 13 are respectively connected to the two horizontal ends of the support ring 11, such as... Figure 4 As shown, the spacing at the upper end of the U-shaped tube 13 is greater than the spacing at the lower end, thus adapting to the setting that the upper diameter of the ladle is greater than the lower diameter.

[0021] The U-shaped tube 13 is fixedly connected to an upper temperature sensor 14, a middle temperature sensor 15, and a lower temperature sensor 16 arranged vertically.

[0022] Cooling water flows through the U-shaped tube 13. This cools the upper temperature sensor 14, the middle temperature sensor 15, and the lower temperature sensor 16. At the same time, the signal lines of the three temperature sensors are connected to the outside through the cooling water, thus preventing damage to the signal lines due to high temperature.

[0023] like Figure 5 As shown, the support ring 11 is provided with an inlet chamber 17 communicating with the inlet pipe 19 and an outlet chamber 18 communicating with the outlet pipe 20. Both the inlet chamber 17 and the outlet chamber 18 are arc-shaped cavities. Both the inlet chamber 17 and the outlet chamber 18 extend into the connecting block 12. The inlet pipe 19 and the outlet pipe 20 are respectively arranged on both sides of the connecting block 12.

[0024] The two ends of the U-shaped tube 13 are connected to the inlet chamber 17 and the outlet chamber 18, respectively, so that the cooling water in the inlet pipe 19 can enter the inlet chamber 17 and then enter one end of the U-shaped tube 13, and enter the outlet chamber 18 from the other end of the U-shaped tube 13, and finally be discharged from the outlet pipe 20.

[0025] How to use this utility model: In use, the ladle 10 is transported to the baking station. The vertical shaft 2 is rotated by the rotary drive mechanism, causing the support ring 11 to rotate directly above the ladle 10. Then, the lifting mechanism drives the lifting seat 7 to descend, causing the support ring 11 to fall until it fits against the upper surface of the ladle 10. At this time, the U-shaped tube 13 is inserted into the ladle 10, and then the baking burners and other items are lowered into the ladle. The ladle lid is then closed for baking. During the baking process, the upper temperature sensor 14, the middle temperature sensor 15, and the lower temperature sensor 16 on the U-shaped tube 13 measure the temperature at various height positions inside the ladle 10, thereby facilitating precise adjustment of the baking process.

[0026] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A multi-point temperature measurement system for ladle baking, characterized in that: It includes a fixed base (1), a vertical shaft (2) connected to the fixed base (1) and a rotation drive mechanism for driving the vertical shaft (2) to rotate, and also includes a lifting seat (7) slidably connected to the vertical shaft (2) and a lifting drive mechanism for driving the lifting seat (7) to rise and fall. A connecting block (12) is fixedly connected to the lifting seat (7), and a horizontal support ring (11) is fixedly connected to the side of the connecting block (12). A U-shaped tube (13) is fixedly connected to the lower end of the support ring (11). An upper temperature sensor (14), a middle temperature sensor (15) and a lower temperature sensor (16) arranged vertically are fixedly connected to the U-shaped tube (13). Cooling water flows through the U-shaped tube (13).

2. The multi-point temperature measurement system for ladle baking according to claim 1, characterized in that: The rotary drive mechanism includes a passive rotary gear (3) fixed on a vertical rotating shaft (2) and a rotary motor (5) fixed on a fixed base (1). The rotating shaft of the rotary motor (5) is fixed with an active rotary gear (4) that meshes with the passive rotary gear (3).

3. The multi-point temperature measurement system for ladle baking according to claim 1, characterized in that: The lifting drive mechanism includes a lifting rack (6) fixed on a vertical rotating shaft (2) and a lifting motor (8) fixed on a lifting seat (7). A lifting gear (9) that meshes with the lifting rack (6) is fixed on the rotating shaft of the lifting motor (8).

4. The multi-point temperature measurement system for ladle baking according to claim 1, characterized in that: The support ring (11) is provided with an inlet chamber (17) connected to the inlet pipe (19) and an outlet chamber (18) connected to the outlet pipe (20). The two ends of the U-shaped tube (13) are respectively connected to the inlet chamber (17) and the outlet chamber (18).

5. A multi-point temperature measurement system for ladle baking according to claim 4, characterized in that: The inlet chamber (17) and outlet chamber (18) both extend into the connecting block (12), and the inlet pipe (19) and outlet pipe (20) are respectively located on both sides of the connecting block (12).

6. The multi-point temperature measurement system for ladle baking according to claim 1, characterized in that: The spacing at the upper end of the U-shaped tube (13) is greater than the spacing at the lower end.

7. A multi-point temperature measurement system for ladle baking according to claim 1, characterized in that: The upper and lower end faces of the support ring (11) are both planes.

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